DEPARTMENT OF THE INTERIOR

Ray Lyman Wilbur, Secretary

U. S. GEOLOGICAL SURVEY 

George Otis Smith, Director

Water-Supply Paper 612

SURFACE WATER SUPPLY OF THE

UNITED STATES

1925

PART XII, NOBTH PACIFIC SLOPE DKAINAGE BASINS

A. PACIFIC BASINS IN WASHINGTON AND UPPER 

COLUMBIA RIYER BASIN

NATHAN C. GROVER, Chief Hydraulic Engineer

G. L. PARKER and W. A. LAMB, District Engineers

Prepared in cooperation with the States of 

WASHINGTON, MONTANA, AND IDAHO

UNITED STATES

GOVERNMENT FEINTING OFFICE 

WASHINGTON : 1829
ADDITIONAL COPIES

OF THIS PUBLICATION MAY BE PROCURED FEOif

THE SUPERINTENDENT OF DOCUMENTS

U.S.GOVEENMENT PRINTING OFFICE

WASHINGTON, D. C.

AT

25 CENTS PER COPY
CONTENTS

Authorization and scope of work____________________________________ I

Definition of terms_______________________________________ 2

Explanation of data____________________________________________ 3

Accuracy of field data and computed results.______________________ 4

Publications____________________________________________________ 5

Cooperation...________________________________________________ 10

Division of work___._____________________________________________ 10

Gaging-station records_ ________________________________________ 11

Drainage basins between Columbia River and Puget Sound____ __ 11

Chehalis River Basin___________________________________ 11

Wynoochee River near Montesano, Wash._______________ 11

Quillayute River Basin___________________________________ 12

Soleduck River at Snider ranger station, near Beaver,

Wash.____________....___.____________ 12

Lyre River Basin_______________________________________ 14

Lake Crescent at Piedmont, Wash____________________ 14

Lyre River at Piedmont, Wash________________________ 15

Elwha River Basin..______________________________________ 17

Elwha River at McDonald Bridge, near Port Angeles,

Wash.._-___.___..-___..._.._.__________-__-___.- 17

Dungeness River Basin__________________________________ 19

Dungeness River near Sequim, Wash___________________ 19

Puget Sound Basins__________________________________________ 21

Dosewallips River Basin_____---__--___---__---____-_._-- 21

Dosewallips River at Brinnon, Wash__________________ 21

Skokomish River Basin__-_--_-_-_-_--_-____-__-_._____-_ 23

North Fork of Skokomish River below Staircase Rapids,

near Hoodsport, Wash_____________________________ 23

North Fork of Skokomish River near Hoodsport, Wash____ 25

South Fork of Skokomish River near Potlatch, Wash______ 27

Nisqually River Basin___--_-______-____--_---___--____-_ 29

Nisqually River near La Grande, Wash__________________ 29

Little Nisqually River near Alder, Wash_______________ 31

Tacoma power conduit near La Grande, Wash__________ 32

Puyallup River Basin____________________________________ 34

Puyallup River near Electron, Wash__________________ 34

Puyallup River at Alderton, Wash____-__________----__ 36-

Puyallup River at Puyallup, Wash__________________ 38

White River at Buckley, Wash_______________________ 4O

Lake Washington Basin_________________________________ 42

Cedar River at Cedar Falls, Wash_____________________ 42

Cedar River near Landsberg, Wash__________________ 44

in
IV CONTENTS

Gaging-station records Continued.

Puget Sound Basins Continued. Page

Snohomish River Basin_.__________________________________ 46

South Fork of Skykomish River near Index, Wash________ 46

Olney Creek near Startup, Wash_____________________ 47

Sultan River near Sultan, Wash_________________ 49

Middle Fork of Snoqualmie River near North Bend, Wash_ 51

North Fork of Snoqualmie River near North Bend, Wash__ 53

South Fork of Snoqualmie River at North Bend, Wash____ 55

Stilaguamish River Basin___.____________________________ 56

Deer Creek at Oso, Wash____________________________ 56

Skagit River Basin______________________________________ 58

Skagit River below Ruby Creek, near Marblemount, Wash. 58

Skagit River near Marblemount, Wash_________________ 60

Skagit River near Concrete, Wash____________________ 62

Thunder Creek near Marblemount, Wash.______________ 64

Sauk River at Darrington, Wash._______________________ 66

Baker River below Anderson Creek, near Concrete, Wash.. 68

Upper Columbia River Basin_______________________________ 69

Main stream____________________________________________ 69

Columbia River at Trail, British Columbia..____________ 69

Columbia River at Kettle Falls, Wash______________ 71

Columbia River at Vernita, Wash__ ___________________ 73

Kootenai River Basin____________________________________ 75

Kootenai River at Libby, Mont_._____________________ 75

Clark Fork Basin_______________________________ 76

C]ark Fork near Plains, Mont.___________________ 76

Pend Oreille Lake at Hope, Idaho_-___-_-_____________-_ 78

Clark Fork at Metaline Falls, Wash_______________ 79

Rock Creek near Quigley, Mont________________________ 81

Ranch Creek near Quigley, Mont________ _____________ 82

Flathead Lake at Somers, Mont_________ ____ _____ 84

Flathead Lake at Poison, Mont______________________ 85

Flathead River near Poison, Mont_____ __ ___ __ 85

South Fork of Flathead River near Columbia Falls, Mont__ 87

Swan River near Big Fork, Mont____________ _______ 88

Big Creek near Poison, Mont.__________ _ _ 90

Priest River at outlet of Priest Lake, near Coolin, Idaho. __ 92

'Colville River Basin_______________ _ ____________ 94

Colville River at Meyers Falls, Wash.____________ __ _ 94

Hall Creek Basin..______________ _ 95

Hall Creek at Inchelium, Wash__________________ _ 95

Stranger Creek Basin______-_-_-__-_ _________ __________ 97

Stranger Creek at Meteor, Wash________________ 97

Spokane River Basin____________--_ _____________________ 98

Coeur d'Alene River near Cataldo, Idaho_____ _ 98

Coeur d'Alene Lake at Coeur d'Alene, Idaho-__ ___ 100

Spokane River at Post Falls, Idaho. 101

Spokane River at Spokane, Wash__ ______________ 103

Spokane River below Little Falls, near Long Lake, Wash__ 105

St. Joe River at Calder, Idaho__________ 107

St. Maries River at Lotus, Idaho_______ ___ -- 109

Hayden Lake at Hayden Lake, Idaho_________ ___ _ 111

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

Gaging-station records Continued.

Upper Columbia River Basin Continued. Page

Nespelem River Basm-_-___-___________-_-------____------ 113

Nespelem River at Nespelem, Wash_____________________ 113

Nespelem Canal at Nespelem, Wash_____________________ 114

Okanogan River Basm__________________-___-___________--- 116

Okanogan River at Okanogan, Wash___________________ 116

Similkameen River near Oroville, Wash________________ 118

Sinlahekin Creek above Blue Lake, near Loomis, Wash____ 119

Toats Coulee Creek near Loomis, Wash__________________ 121

West Okanogan Valley Irrigation District Canal near Oroville, Wash__-_______________________________. 123

Methow River Basin_____________________________________ 124

Methow River at Twisp, Wash________________________ 124

Chelan River Basin____-_______-___-___-___---________---_ 126

Lake Chelan at Chelan, Wash_ __________________ 126

Chelan River at Chelan, Wash...__________________ 127

Entiat River Basin______________________________________ 129

Entiat River at Entiat, Wash_________________________ 129

Wenatchee River Basin__________________..________________ 131

Wenatchee River near Leaven worth, Wash________ ________ 131

Yakima River Basin____________________________________ 132

Keechelus Lake near Martin, Wash_____________________ 132

Yakima River near Martin, Wash_______________________ 133

Yakima River at Cle Elum, Wash_______________ 135

Kachess Lake near Easton, Wash.______________________ 137

Kachess River near Easton, Wash____________________ 138

Cle Elum Lake near Roslyn, Wash______________________ 139

Cle Elum River near Roslyn, Wash_____________________ 140

Naches River below Tie ton River, near Naches, Wash_____ 142

Bumping Lake near Nile, Wash_______________________ 144

Bumping River near Nile, Wash________________________ 145

Tieton Reservoir at Tieton Dam, near Naches, Wash____ 147

Tieton River at Tieton Dam, near Naches, Wash________ 148

Tieton River at headworks of Tieton Canal, near Naches,

Wash________________________________ 150

Tieton Canal near Naches, Wash______________________ 151

Miscellaneous discharge measurements ______________________________ 153

Index________________________________________ 157

ILLUSTRATION

Page 

FIGURE 1. Typical gaging station_____________________________ 3
SURFACE WATER SUPPL1 

IN WASHINGTON AND 

BASIN, 1925

This volume is one of a series 

measurements of flow made on s

OF PACIFIC SLOPE BASINS 

UPPER COLUMBIA RIYER

AUTHORIZATION AND SCOPE OF WORK

of 14 reports presenting records of 

treams in the United States during

the year ending September 30, 1925.

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 director] 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. Since the fiscal year ending June 30, 1895, 

successive appropriation bills passed by Congress have carried the 

following items:

For gaging the streams and determining the water supply of the United 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 SO, 1895-1926

1911-1917_________ $150, 000. 00 

1918_ ____________ 175, 000. 00 

1919__.___.__.___ 148, 244. 10 

1920_____________ 175,000.00 

1921-1923-_________ 180, 000. 00 

1924-1925-_________ 170, 000. 00 

1926- ____________ 165, 000. 00

1895....-_.-._.--._____ $12, 500. 00

1896____._.._______ i 24, 500. 00

1897-1899._----_-.___ 50, 000. 00

1900-_____-_--_.__ 270,000.00

1901-1902_ _---_.___-_-_ 100,000.00 

1903-1906___.___..___ 200, 000. 00 

1907__.__-.____.___ 150, 000. 00 

1908-1910__._____-__-_ 100, 000. 00

In the execution of the work many private and State organizations 

have cooperated either by furnishing records 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 10.

1 Includes $4,500 appropriated in act of Apr. 25,1896.

»Includes $20,000 appropriated in deficiency act of Mar. 30,1900.
2 SURFACE WATER SUPPLY, 1925, PART XII A

Measurements of stream flow have been made at about 5,120 

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

the Hawaiian Islands. In July, 1925, 1,710 gaging stations were 

being maintained by the Survey and the cooperating organizations. 

Many miscellaneous discharge measurements were 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 water-supply papers from time 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, miner's 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 second-feet, secondfeet per square mile, run-off in inches, acre-feet, and millions of cubic 

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 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 section or sections of the 

stream channel 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.
EXPLANATION OF DATA 6

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

gage the gage height at which water ceases to flow over the control.

EXPLANATION OF DATA

The data presented in this report cover the year beginning October 1, 1924, and ending September 30, 1925. 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 runoff for the year beginning October 1 is practically all derived from 

precipitation within that year.

FIGURE 1. Typical gaging station

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. The general methods 

are outlined in standard textbooks on the measurement of river 

discharge. A typical gaging station, equipped with water-stage 

recorder and measuring cable and car, is shown in Figure 1.

From the discharge measurements rating tables are prepared that 

give the discharge for any stage. The application of the daily gage 

heights to these rating tables gives the discharge from which the 

monthly and yearly mean discharge is determined.
4 SURFACE WATER SUPPLY, 1925, PART XII A

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

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

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 records 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 control, 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 

s econd-feet corresponding to the means of the gage heights read each 

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

fluctuation the discharge obtained from the rating table and the 

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 discharge at 

regular intervals during the day or by use of the 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 are based computations recorded in the remaining 

columns, which are defined on pages 2 and 3.

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, measurements 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) refine-
PUBLICATIONS O

ment of gage readings, (4) frequency of gage readings, and (5) methods of applying daily gage height to the rating table to obtain the 

daily discharge.

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 depth in inches may be 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 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" 

published by the Geological Survey in earlier reports should be used 

with caution because of possible inherent but unknown sources of 

error.

Many gaging stations on streams in the irrigated areas of the United 

States are situated above most of the diversions from those streams, 

and the discharge recorded does not show the water supply available 

for further development, as prior appropriations below the stations 

must be satisfied first. To give an idea of the amount of prior appropriations, a paragraph on diversions is presented in each station 

description. The figures given can not be considered exact but 

represent the best information available.

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.

PUBLICATIONS

Investigation of water resources by the United States Geological 

Survey has consisted in large part of measurements of the volume 

of flow of streams and studies of the conditions affecting that flow, 

but it has comprised also investigation of such closely allied subjects 

as irrigation, water storage, water powers, underground waters, and 

quality of waters. Most of the results of these investigations have
6 SURFACE WATER SUPPLY, 1925, PART XII A

been published in the series of water-supply papers, but some have 

appeared in the bulletins, professional papers, monographs, and annual 

reports.

The results of stream-flow measurements are now published annually in 12 parts, each part covering an area whose boundaries coincide 

with natural drainage features as indicated below.

PART I. North Atlantic slope basins (St. John River to York River).

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

the Mississippi).

III. Ohio River Basin.

IV. St. Lawrence River Basin.

V. Upper Mississippi River and Hudson Bay Basins.

VI. Missouri River Basin.

VII. Lower Mississippi River Basin.

VIII. Western Gulf of Mexico Basins.

I.. Colorado River Basin.

X. Great Basin.

XI. Pacific slope basins in California. 

XII. North Pacific slope basins, in three volumes:

A, Pacific slope basins in Washington and upper Columbia River

Basin.

B, Snake River Basin.

C, Lower Columbia River Basin and Pacific slope basins in 

Oregon.

Water-supply papers and other publications of the United States 

Geological Survey containing data in regard to the water resources of 

the United States may be obtained or consulted as indicated below.

1. Copies may be purchased at nominal cost from the Superintendent of Documents, Government Printing Office, Washington, 

D. C., who will, on application, furnish lists giving prices.

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

3. Complete sets are available for consultation in the local offices 

of the water-resources branch of the Geological Survey, as follows:

Boston, Mass., 2500 Customhouse.

Albany, N. Y., 904 Home Savings Bank Building.

Trenton, N. J., Statehouse.

Charlottesville, Va., care of University of Virginia.

Asheville, N. C., 608 City Hall.

Chattanooga, Tenn., 830 Power Building.

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

Chicago, 111., 1510 Consumers Building.

Madison, Wis., care of Railroad Commission of Wisconsin.

Rolla, Mo., Rolla Building, School of Mines and Metallurgy.

Helena, Mont., 45-46 Federal Building.

Denver, Colo., 403 Post Office Building.

Tucson, Ariz., 106 College of Law Building, University of Arizona.

Salt Lake City, Utah, 313 Federal Building.

Boise, Idaho, Federal Building.
PUBLICATIONS

Idaho Falls, Idaho, 228 Federal Building. 

Tacoma, Wash., 406 Federal Building. 

Portland, Oreg., 606 Post Office Building. 

San Francisco, Calif., 303 Customhouse. 

Los Angeles, Calif., 600 Federal Building. 

Austin, Tex., Capitol Building. 

Honolulu, Hawaii, Territorial Office Building.

A list of the Geological Survey's publications may be obtained by 

applying to the Director, United States Geological Survey, Washington, D. C.

Stream-flow records have been obtained at about 5,120 points irr 

the United States, and the data obtained have been published in the 

reports tabulated below:

Stream-flow data in reports of the United States Geological Survey 

[A=Annual report; B=Bulletin; W=Water-Supply Paper]

Report Character of data Year

10th A, pt. 2..._ Descriptive information only.___________.............

llth A, pt. 2___ Monthly discharge and descriptive information.. 1884 to Sept., 1890. 

12th A, pt. 2___. - do__.__-.___.._____.....______________ 1884 to June 30, 1891 

13th A, pt. 3.__ Mean discharge in second-feet___________________ 1884 to Dec. 31, 1892 

14th A, pt. 2___ Monthly discharge (long-time records, 1871 to 1893)______ 1888 to Dec. 31, 1893 

B 131_______ Descriptions, measurements, gage-heights, and ratings...__ 1893 and 1894. 

16th A, pt. 2..._ Descriptive information only.__________ 

B140_______ Descriptions, measurements, gage-heights, ratings, and 1895.

monthly discharge (also many data covering earlier years). 

W 11_______. Gage heights (also gage heights for earlier years).. -------_ 1896.

18th A, pt. 4... _ Descriptions, measurements, ratings, and monthly discharge 1895 and 1896.

(also similar data for some earlier years). 

W 15________ Descriptions, measurements, and gage heights, eastern United 1897.

States, eastern Mississippi River, and Missouri River above

junction with Kansas. 

W 16_ _ ____ Descriptions, measurements, and gage heights, western Missis- 1897.

sippi River below junction of Missouri and Platte, and western United States. 

19th A, pt. 4___ Descriptions, measurements, ratings, and monthly discharge 1897.

(also some long-time records). 

W27________ Measurements, ratings, and gage heights, eastern United 1898.

States, eastern Mississippi River, and Missouri River. 

W28. Measurements, ratings, and gage heights, Arkansas River and 1898.

western United States. 

20th A, pt. 4...... Monthly discharge (also for many earlier years) 1898.

W 35 to 39_..... Descriptions, measurements, gage heights, and ratings. 1899.

21st A, pt. 4___ Monthly discharge-__-----_____..________-___ 1899.

W 47 to 52-...-_-~ Descriptions, measurements, gage heights, and ratings... 1900. 

22d A, pt. 4.___ Monthly discharge_________________________ 1900. 

W 65, 66_.__. Descriptions, measurements, gage heights, and ratings... 1901. 

W 75-_____- Monthly discharge..__-__._______..... 1901.

W 82 to 85 __ Complete data..._____......._.____________- 1902.

W 97 to 100......-- do _ 1903.

W 124 to 135...... ..do...__-____-__-.--____.____.___-___-_ 1904.

W 165 to 178..___ ...do__-______.___.___.___.___ -_____ 1905. 

W 201 to 214-___ do..._____._________________.___________ 1906. 

W 241 to 252 do - . 1907-8.

W 261 to 272 .... -----do. 1909.

W 281 to 292 -----do.-.--. 1910.

W 301 to 312.. ---.do.-.-----... 1911.

W 321 to 332____ ._.do ___-_______.___...._.________-_ 1912.

W 351 to 362 do. 1913.

W 381 to 394..... . do.__...___._............._ .___.___-___ 1914.

W 401 to 414 do 1915.

W 431 to 444 ---do.-...-......- 1916.

W 451 to 464 _ .....do_..._-----___._____.....___-------_ . 1917.

W 471 to 484 -...do. - - 1918.

W 501 to 514...__ .__do .......___- _ _ _.. .. __.- 1919-20.

W 521 to 534 .. do . 1921.

W 541 to 554 .- do 1922.

W 561 to 574. .- .._do....-__-------_ ..___-----___-_... 1923.

W 581 to 594 do . - - 1924.

W 601 to 614 .. ---.do...____..___...._......_____._.___-__ 1925.

NOTE. No data regarding stream flow are given in the 15th and 17th annual reports.
8 SURFACE WATER SUPPLY, 1925, PART XII A

The records at most of the stations discussed in these reports 

extend over a series of years, and miscellaneous measurements at 

many points other than regular gaging stations have been made each 

year. An index of the reports containing records obtained prior to 

1904 has been published in Water-Supply Paper 119.

The following table gives, by years and drainage basins, the numbers of the papers on surface-water supply published from 1899 to 

1924. The data for any particular station will be found in the 

reports covering the years during which the station was maintained. 

For example, data for Machias River at Whitneyville, Me., 1903 to 

1921, are published in Water-Supply Papers 97,124,165, 201, 241, 261, 

281, 301, 321, 351, 381, 401, 431, 451, 471, 501, and 521, whichcontain records for the New England streams from 1903 to 1921. Results 

of miscellaneous measurements are published by drainage basins.
Number of water-supply papers containing results of stream 

[For basins included see p. 6]

A. Cell

1899°-. .....

1900 » 

1901 -

1902............

1903 

1904 

1905............

1906 

1907-8. ..

1909.... ....

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

1911 .

1912............

1913_.._____ ....

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

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

1916 ........

1917-..-.. ......

1918...........

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

1921. _ .. ......

1922............

1923. .

1924............

1925 

I

35

47, h 48

65,75

82

97

" 124, o 125,

»126 

» 165, » 166,

J>167 

" 201, « 202,

»203 

241

261

281

301

321

351

381

401

431

451

471

501

521

541

561

581

601

II

» 35, 36

48

65,75

" 82,83

» 97, 98

' 126, 127

» 167, 168

» 203, 204

242

262

282

302

322

352

382

402

432

452

472

502

522

542

562

582

602

III

36

48, < 49

65,75

83

98

128

169

205

243

263

283

303

323

353

383

403

433

453

473

503

523

543

563

583

603

IV

36

49

* 65, 66,75

' 82, 83

97

129

170

206

244

264

284

304

324

354

384

404

434

454

474

504

524

544

564

584

604

V

36

49

* 65, 66, 75

* 83, 85

* 98, 99, » 100

* 128, 130

171

207

245

265

285

305

325

355

385

405

435

455

475

505

525

545

565

585

605

VI

49, i 50

66,75

84

99

130, * 131

172

208

246

266

286

306

326

356

386

406

436

456

476

506

526

546

566

586

606

VII

37

50

* 65, 66, 75

* 83, 84

* 98, 99

* 128, 131

* 169, 173

* 205, 209

247

267

287

307

327

357

387

407

437

457

477

507

527

547

567

587

607

VIII

3

5

66,7

8

9

13

17

21

24

26

28

30

32

35

38

40

43

45

47

50

52

54

58

60

« Rating tables and index to Water-Supply Papers 35-39 contained in Water-Supply 

Paper 39. Tables for monthly discharge for 1899 in Twenty-first Annual Report, 

Part IV.

* James River only. 

" Gallatin River.

* Green and Gunnison Rivers and Grand River above junction with Gunnison.

*Mohave River only.

' Kings and Kern Rivers and south Pacific slope basins.

«Rating tables and index to Water-Supply Papers 47-52 and data on precipitation, 

wells, and irrigation in California and Utah contained in Water-Supply Paper 52. 

Tables for monthly discharge for 1900 in Twenty-second Annual Report, Part IV.

* Wissahickon and Schuylkill Rivers to James River.

* Scioto River.

' Loup and Platt

with Platte.

* Tributaries of M

! Lake Ontario an

m Hudson Bay on

» New England r

0 Hudson River t

' Susquehanna R

« Platte and Kan

r Great Basin in 

 Below junction w

' Rogue, Umpqua
10 SUEFACE WATER SUPPLY, 1925, PART XII A

COOPERATION

The work in Washington, Montana, and Idaho was carried on 

under cooperative agreements between the United States Geological 

Survey and the respective States.

Cooperation with the States is effected under contracts which are 

made between the Director of the United States Geological Survey 

and the State engineers or other officials and are authorized by legislative act appropriating moneys.

Work in Washington was carried on in cooperation with the Department of Conservation and Development, Dan A. Scott, succeeded 

by Erie J. Barnes, as director. Cooperative relations were administered by Marvin Chase and R. K. Tiffany, supervisors of hydraulics, 

Division of Water Resources.

Acknowledgments are due C. S. Heidel, State engineer of Montana, 

and to W. G. Swendsen, commissioner of reclamation of Idaho, for 

cooperation with their respective States.

Acknowledgments are also due to the United States Bureau of 

Reclamation, the United States Forest Service, the United States 

Office of Indian Affairs, and the United States Weather Bureau for 

assistance, suggestions, and the freest use of data gathered exclusively 

for them and paid for by them.

The Dominion Water Power and Reclamation Service of Canada 

furnished complete records of Columbia River at Trail, British 

Columbia.

The following municipalities, corporations, and individuals have 

aided in the collection of records by paying expense of all or part 

of the work: Inter-County River Improvement Commission of King 

and Pierce Counties; Skagit County; the cities of Aberdeen, Everett, 

Seattle, and Tacoma; Chelan Electric Co.; Hugh L. Cooper Co.; 

Great Northern Railroad Co.; Greater Wenatchee Irrigation District; Interurban Land Co.; Methow-Okanogan Irrigation District; 

Northwestern Power & Manufacturing Co.; Puget Sound Power & 

Light Co.; Sound Power Co.; Spokane Valley Farms Co.; Stevens 

County Power & Light Co.; Stone-Webster Engineering Corporation; 

Washington Coast Utilities Co.; Washington Water Power Co.; 

Whitestone Irrigation District; Washington Irrigation & Development Co.; West Okanogan Valley Irrigation District; and J. L. Keeler.

DIVISION OF WORK

The data for stations in Washington were collected and prepared 

for publication under the direction of G. L. Parker, district engineer, 

assisted by D. J. F. Calkins, R. B. Kilgore, J. S. Gatewood, C. O. 

Dueval, K. N. Vaksvik, and J. M. Rogers.
CHEHALIS ftlVER BASIN 11

The data for stations in Montana were collected and prepared 

for publication under the direction of W. A. Lamb, district engineer, 

assisted by A. H. Tuttle and Miss G. B. McDonough.

The data for stations in the Yakima Basin were collected and results 

computed and prepared for publication by Paul Taylor, engineer in 

charge of hydrometric work, United States Bureau of Reclamation, 

assisted by D. E. Ball and R. O. Crawford.

The manuscript was assembled and reviewed by H. C. Troxell.

GAGING-STATION RECORDS

DRAINAGE BASINS BETWEEN COLUMBIA KIVER AND PUGET

SOUND

CHEHALIS RIVER BASIN 

WYNOOCHEE EIVEE HEAR MONTESANO, WASH.

LOCATION. In sec. 36, T. 20 N., R. 8 W., at Waters ranch 14 miles north of

Montesano, Grays Harbor County. 

DEAINAGE AREA. 105 square miles, at measuring section (measured on map of

Olympic National Forest, edition of 1923). 

RECORDS AVAILABLE. February 1, 1923, to September 30, 1925. 

GAGE. Vertical staff in two sections on left bank, at Waters ranch. 

DISCHARGE MEASUREMENTS. Made from suspension bridge 2^ miles below

gage or by wading. 

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

riffle on gravel and solid rock several hundred feet below gage. Shifts at

high stages. Banks high, not subject to overflow. 

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 10.5 feet at

8.30 a. m. February 2 (discharge, 11,700 second-feet); minimum stage

recorded, 1.24 feet on September 27 (discharge, 123 second-feet).

1923-1925: Maximum stage, 17.0 feet at 6 p. m. February 11, 1924,

discharge not determined; minimum discharge recorded, 106 second-feet

on September 17, 1924.

ICE. Stage-discharge relation not affected by ice. 

DIVERSIONS. None. 

REGULATION. None. 

ACCURACY. Stage-discharge relation changed February 3. Rating curves well

defined up to 7,500 second-feet. Gage read to hundredths twice daily.

Daily discharge ascertained by applying mean daily gage height to rating

table. Records good.

Discharge measurements of Wynoochee River near Montesano, Wash., during the 

year ending September 30, 1925

Date

Oct. 8.... ......

Nov. 7.. _ . _

Mar. 6.. .......

Mar. 13 __ .....

Apr. 10 _._. _

Gage 

height

Feet 

2.73

7.57

3.48

2.65

2.57

Discharge

Sec.-ft. 

692

6,460

1,320

696

644

Date

May 16 ____

July 7... .......

July 11... ......

July 15.. .......

Gage 

height

Feet 

2.54

2.48

1.77

1.71

1.80

Discharge

Sec.-ft. 

643

564

263

261

286

Date

July 16. 

Aug. 8 

Sept. 22 ____

Sept. 25- 

Gage 

height

Feet 

1.72

1.41

1.30

1.25

Discharge

Sec.-ft. 

249

158

132

127

3223 29-
12 SUKFACE WATEK SUPPLY, 1925, PAKT XII A

Daily discharge, in second-feet, of Wynoochee Ruer near Montesano, Wash., for 

the year ending September SO, 1925

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.

3,810

2,290

1,850

1,250

1,340

820

750

715

682

590

560

1,090

1,010

4,200

2,840

2,290

1,740

1,340

1,090

970

855

855

820

7,040

6,560

4,340

3,680

3,430

6,250

4,340

3,430

Nov.

2,950

3,680

2,840

4,070

2,510

3,680

2,840

2,180

2,180

1,740

1,430

1,740

1 fi^ft

1,530

1,430

1,430

5,350

3,680

2,730

2,510

2,070

1,740

1,430

1,250

1,170

1,010

530

Dec.

892

1,010

1,090

1,170

1,170

1,010

930

4,200

6,100

4,760

3,550

2 9QO

3,680

1,850

1,530

1,170

1,010

930

715

715

715

1,430

1,530

Jan.

2,070

2,510

2,400

2,510

1,850

1,740

2 0Qfl

1,850

1,740

1,630

1,530

1,340

1,090

3,680

2,730

4,760

2,950

2,180

2,070

2,400

6,400

4,340

Feb.

5,650

8,230

4,480

A Aon

4,200

3,430

3,310

2,070

1,740

1,530

1,340

1,170

930

892

930

2,510

3,070

3,070

2,400

2,400

1,630

Mar.

1,430

1,630

1,430

1 nori

1,010

930

855

752

688

720

752

752

595

CQK

568

KAf\

540

Apr.

490

490

468

/mri

468

468

468

468

688

720

625

468

595

820

1,090

1,090

1,090

970

855

820

720

655

595

568

540

540

May

930

855

752

688

688

720

625

568

595

568

568

595

625

688

595

595

595

568

515

445

423

423

445

855

595

515

June

490

445

515

1,170

855

688

625

625

655

595

568

540

515

490

468

445

445

423

423

445

423

380

401

380

380

358

338

318

July

318

300

300

281

264

264

264

246

318

281

264

246

230

214

214

214

214

200

200

200

185

185

185

180

180

Aug.

177

172

169

166

163

161

161

158

158

158

158

156

151

149

149

146

144

153

158

153

149

149

153

153

146

135

135

Sept.

144

158

149

140

136

135

144

135

135

133

131

127

127

127

144

153

153

149

163

144

135

131

127

125

125

123

131

140

158

Monthly discharge of Wynoochee River near Montesano, Wash., for the year ending

September SO, 1925

Month

October ___________________________

January

May

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

Discharge in second-feet

Maximum

7,040 

6,250 

6,100 

6,400 

9,670 

1,630 

1,090 

930 

1,170 

338 

177 

163

9,670

Minimum

560 

530 

715 

1,090 

820 

490 

468 

423 

318 

180 

135 

123

123

Mean

2,350 

2,390 

1,790 

2,680 

2,970 

872 

656 

617 

517 

244 

155 

139

1,270

Run-off in 

acre-feet

144,000 

142, 000 

110,000 

165, 000 

165,000 

53,600 

39,000 

37,900 

30, 800 

15, 000 

9,530 

8,270

920,000

QUILLAYUTE KIVEE BASIN 

SOLED UCK RIVER AT SNIDER RANGER STATION, NEAR BEAVER, WASH.

LOCATION. In sec. 28, T. 30 N., R. 11 W., at Snider ranger station, 9 miles 

below South Fork and 11 miles above Beaver, Clallam County.

DRAINAGE AREA. 111 square miles (measured on Plate I, United States Geological Survey Professional Paper 7).

RECORDS AVAILABLE. November 13, 1921, to September 30, 1925; winter 

records 1922 and 1923 fragmentary.
QUILLAYUTE BIVEE BASIN 13

GAGE. Vertical staff in two sections on right bank a few hundred feet above 

ranger station, installed February 5, 1922; read by R. O. Stanley.

DISCHARGE MEASUREMENTS. Made from cable or by wading.

CHANNEL AND CONTROL. Right bank high, will not be overflowed; left bank 

may be overflowed at extremely high stage. Channel straight for several 

hundred feet above and below gage. Control is gravel and boulder riffle 

about 500 feet below gage; shifts at high stages. Stage of zero flow, according to measurement made September 14, 1924, gage height 0.4 foot ±0.1 

foot.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 8.2 feet at 

4.10 p. m. February 1 (discharge, 7,030 second-feet); minimum stage recorded, 1.24 feet on September 27 and 28 (discharge, 44 second-feet).

1922-1925: Maximum stage recorded, 14.7 feet at noon on December 12, 

1921 (discharge, 23,500 second-feet); minimum stage recorded, 1.17 feet on 

September 16 and 17, 1924 (discharge, 34 second-feet).

ICE. Stage-discharge relation seriously affected by ice during severe winters; 

flow estimated from discharge measurements, observer's notes, and weather 

records.

DIVERSIONS. None.

REGULATION. None.

ACCURACY. Stage-discharge relation practically permanent; not affected by ice. 

Rating curve well defined below 5,000 second-feet. Gage read to hundredths 

once or twice daily. Daily discharge ascertained by applying mean daily 

gage height to rating table. Records good.

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

Discharge measurements of Soleduck River at Snider ranger station, near Beaver, 

Wash., during the year ending September 30, 1925

Date

Nov. 16. __ ...

Nov. 17. __ ...

Apr. 14 .........

Gage 

height

Feet 

3.41

3.72

2.80

Discharge

Sec.-ft. 

865

1,050

533

Date

Apr. 15.........

May 23. __ ....

July 13. ___ ..

Gage 

height

Feet

2.78

2.49

Discharge

Sec.-ft. i 

539

521 ; 388

Date Gage 

height

Feet 

1.60

Discharge

Sec.-ft. 

Ill

Daily discharge, in second-feet, of Soleduck River at Snider ranger station, near 

Beaver, Wash., for the year ending September 80, 1925

Day

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

2 _________

3... __ .......

5. _ ..........

6 ______ ....

7_ ....

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

J ________ .

10 ..

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

12 ._

13 ..........

14 

15. _ ..........

16 . _ 

17 .........

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

19 ___ .........

20 _ ........

Oct.

2,620

1,110

855

558

462

374

381

388

395

363

333

915

659

1,410

1,410

1,330

795

633

533

533

Nov.

1,410

1,670

1,490

1,410

1,250

1,670

2,400

1,670

1,110

915

855

712

633

685

740

855

1,040

1,490

4,480

3.090

Dec.

608

855

633

633

608

533

485

439

4,020

3,600

4,170

4,020

3,600

2,850

1,760

1,410

1,110

975

880

840

Jan.

685

915

915

740

1,330

975

795

712

685

712

740

712

659

583

485

462

583

2,620

1,580

1.960

Feb.

5,870

4,480

3,470

2,480

1,490

1,410

1,330

1,220

1,120

1,010

900

792

685

1,180

1,580

1.580

Mar.

915

1,330

1,180

915

712

633

583

533

485

439

395

395

439

395

395

374

439

Apr.

294

294

294

294

313

353

462

583

659

712

740

740

712

558

509

583

1,110

855

795

659

May

485

533

533

608

659

795

740

685

558

533

659

633

659

558

740

855

975

855

795

730

June

485

462

462

439

439

439

462

485

533

439

439

462

485

485

485

485

485

533

583

July

395

333

395

395

353

333

313

313

313

313

294

294

333

313

395

313

258

225

225

209

Aug.

140

137

135

132

130

126

123

119

115

110

106

102

102

106

108

108

104

100

96

Sept.

77

74

70

67

65

63

62

62

60

58

56

53

52

48

47

53

60

58

56

55
14 SURFACE WATER SUPPLY, 1925, PART XII A

Daily discharge, in second-feet, of Soleduck River at Snider ranger station, near 

Beaver, Wash., for the year ending September 30, 1925 Continued

Day

21 

22 _____ .....

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

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

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

26 .......

27 

28 

29 

30 

31...... .

Oct.

,

kooo

I

1,760

2,400

1,760

1,960

2,400

1,760

Nov.

2,290

1,860

1,580

1,040

QKK

795

685

633

Dec.

800

780

770

760

740

7qn

79fl

890

i O4o

940

800

Jan.

1,580

4,170

1, 760

1,180

1,180

1 ^3fl

2,180

9 73fl

Feb.

1,670

1,760

1,760

Q7K

OCR

Mar.

485

462

439

439

417

439

462

439

417

374

333

Apr.

633

583

533

485

439

395

395

417

485

May

664

598

533

533

533

533

533

1,410

740

533

533

June

583

583

583

583

583

533

485

439

439

417

July

209

203

197

189

180

172

167

162

159

152

144

Aug.

90

90

92

100

108

108

100

88

79

77

Sept.

53

52

50

49

47

46

44

44

47

50

NOTE. Gage not read Oct. 7, 8, 21-24, Dec. 19-31, Feb. 4-7,11-15, May 20-22, and Sept. 23-26; discharge 

estimated by comparison with records of near-by streams or by interpolation.

Monthly discharge of Soleduck River at Snider ranger station, near Beaver, Wash., 

for the year ending September SO, 1925

[Drainage area, 111 square miles]

Month

December __ . _ --_-__-______.____

February ___________________

June. ____________________

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

Discharge in second-feet

Maximum

2,620 

4,480 

4,170 

4,170 

6,440 

1,580 

1,110 

1,410 

583 

395 

140 

77

6,440

Minimum

333 

633 

439 

462 

608 

333 

294 

485 

417 

144 

77 

44

44

Mean

1,080 

1,370 

1,390 

1,280 

2,150 

580 

544 

669 

496 

266 

108 

55.9

824

Per 

square 

mile

9.73 

12.3 

12.5 

11.5 

19.4 

5.23 

4.90 

6.03 

4.47 

2.40 

.973 

.504

7.42

Run-off

Inches

11.22 

13.72 

14.41 

13.26 

20.20 

6.03 

5.47 

6.95 

4.99 

2.77 

1.12 

.56

100. 70

Acre-feet

66,400 

81,500 

85, 500 

78,700 

119, 000 

35, 700 

32,400 

41,100 

29,500 

16, 400 

6,640 

3,330

596,000

LYRE RIVER BASIN 

LAKE CRESCENT AT PIEDMONT, WASH.

LOCATION. In sec. 14, T. 30 N., R. 9 W., on dock at Log Cabin Hotel at Piedmont, Clallam County.

DRAINAGE ABE A. 49.1 square miles (measured on topographic maps).

RECORDS AVAILABLE. April 1, 1919, to September 30, 1925.

GAGE. Vertical staff on dock; read by J. A. Martin and F. S. Dann.

EXTREMES OF STAGE. Maximum stage recorded during year, 2.54 feet February 

5 and 6; minimum stage recorded, 0.10 foot September 22-30.

1919-1925: Maximum stage recorded, 5.46 feet December 13 and 14, 1921; 

minimum stage recorded, 0.00 foot September 20, 1924.

ACCURACY. Gage read to hundredths once daily. Records excellent.

COOPERATION. Gage-height record furnished by Northwest Power & Manufacturing Co.
LYEE RIVER BASIN 15

Daily gage height, in feet, of Lake Crescent at Piedmont, Wash., for the year ending

September SO, 1925

Day

1 __ ... __ ...

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

3 ___ . __ ..

4 ________ .

5. _ ..... _ __

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

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

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

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

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

11... _ ........

12 _ ...........

13 __ ..........

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

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

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

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

18........

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

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

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

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

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

24........ _ ..

25.......... __

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

27 .........

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

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

30. . 

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

Oct.

0.72

.74

.68

.62

.60

.60

.58

.58

^K

.56

.55

.55

.56

.64

.74

.76

.74

.72

.70

.70

.74

.80

.86

Qfl

.98

1.08

1.32

1.46

1.54

1 an

Nov.

1.60

1.58

1.60

1.66

1.70

1.74

1.76

1.78

1.74

1 60

1 M.

1.50

1.48

1 44

1 49

1.38

1.42

1.50

1.58

1.70

1.78

1 80

1.78

1 60

i *\4

1 VI

1.48

1.46

1.44 

1.40

Dec.

1.36 1 s<t

1.30

1.28

1.24

1.22

1.20

1.20

1.20

1.26

1 09

1.52

1.54

1 f\f}

1.42

1.38

1 s<t

1.30

1.34

1.26

1.22

1.20

1.18

1.14

1.14

1.14

1.12 

1.12

1 19

Jan.

1.14

1.16

1 20

1.20

1.20

1.22

1 99

1.20

1 99

1.24

1.24

1.22

1.22

1.24

1.30

1 09

1 ^4

1.34

1.46

1.58

1.70

1.85

1.82

1.82

1 7Q

1.78

1.80

1.80 

1.82 

1.82

Feb.

1.98

2 10

2.32

2.50

2.54

2.54

2

KO

2.52

9 f\f}

2.36

2.28

2.20

1.96

1.88

1 80

1.72

1.70

1.72

1.70

1.74

1 *79

1 79

1.70

1.66

1 60

Mar.

1.58

1.56

1.56

1.54

1.54

1.52

1.50

1.46

1 40

1 V!

1 QO

1.30

1.26

1.24

1 09

1.20

1.20

1.18

1.16

1.14

1.12

1.10

1.08

1 04

1.02

1 00

1 00

.98

.98 

.96 

94

Apr.

0.92

.92

.90

.90

.90

.90

.90

.89

<SQ

.88

.86

.86

.88

.88

on

.90

1.00

1.00

1.00

1 00

1.00

1.00

1.00

.98

Qfi

Q9

Q9

Q9

.90

.88

May

0.90

90

90

90

90

88

88

90

on

88

88

88

90

Qfl

Oft

90Qfl

90

90

on

90

Qfl

Qfl

on

Qfl

Qfl

Qfl

94

96 

96

Qfi

June

0.94

.94

.92

.92

.90

.90

.90

.90

.90

.88

.84

.82

.78

.76

.74

.70

.70

.70

.70

.68

.68

.66

.64

OA

.62

.60

.60

.60

.58 

.68

July

0.54

.52

.50

.50

.50

.48

.48

.48

.48

.48

.48

.46

.46

.46

.44

.44

.44

.42

.42

.40

.40

.40

.40

.38

.38

.38

.38

.36

.32 

.32 

.30

Aug.

0.28

.28

.28

.28

.28

.30

.30

.30

.30

.30

.28

.28

.26

.26

.24

.22

.22

.22

.20

.20

.20

.18

.20

.20

.20

.20

.20

.20

.20 

.20 

.20

Sept.

0.20

.20

.20

.20

.20

.20

.20

.18

.17

.17

.16

.16

.16

.16

.16

.15

.15

.15

.15

.12

.12

.10

.10

.10

.10

.10

.10

.10

.10 

.10

IYRE RIVER AT PIEDMONT, WASH.

LOCATION. In NE. ^i sec. 15, T. 30 N., R. 9 W., a quarter of a mile below 

outlet of Lake Crescent and half a mile west of Piedmont, Clallam County.

DRAINAGE AREA. 49.5 square miles (measured on topographic maps).

RECORDS AVAILABLE. October 1, 1917, to September 30, 1925.

GAGE. Stevens continuous water-stage recorder on right bank except for the 

period October 17, 1922, to September 30, 1923, when the staff gage in Lake 

Crescent was used. Gage inspected by A. Firkins.

DISCHARGE MEASUREMENTS. Made by wading or from cable, 1,000 feet above

CHANNEL AND CONTROL. Channel composed of bedrock and boulders. Banks 

medium high and wooded. Control formed by series of rapids over bedrock 

and by contracted channel between railroad bridge abutments.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 8.88 feet at 

4 a. m. February 5 (discharge, 827 second-feet); minimum stage recorded, 

4.03 feet at 3 p. m. September 28 (discharge, 29.5 second-feet).

1918-1925: Maximum stage recorded, 3.4 feet on Lake Crescent gage 

January 10 and 11, 1923 (discharge, 1,180 second-feet); minimum discharge, 

18 second-feet on September 19, 1924.

ICE. None.

DIVERSIONS. None.
16 SURFACE WATER SUPPLY, 1925, PART XII A

REGULATION. Flow is very uniform because of natural regulation in Lake 

Crescent. Channel at mouth of lake cleared of driftwood and deepened 

July 25 to August 7, 1922.

ACCURACY. Stage-discharge relation permanent during year. Rating curve well 

defined. Operation of water-stage recorder satisfactory. Daily discharge 

ascertained by applying to rating table mean daily gage height determined 

from recorder graph by inspection. Records excellent.

Discharge measurements of Lyre River at Piedmont, Wash., during the year ending

September SO, 1925

Date

Nov. 16 ____ .

Apr. 13... ...

Gage 

height

Feet 

6.62

6.50

Discharge

Sec.-ft.

327

Date Gage 

height

Feet 

5.77

5.79

4.90

Discharge

Sec.-ft. 

212

202

89.1

Date

Aug. 28 .

Gage 

height

Feet 

4.34

Discharge

Sec.-ft. 

45.5

44.9

Daily discharge, in second-feet, of Lyre River at Piedmont, Wash., for the year

ending September 80, 1925

Day

2. ___ .......

3 ..

4-... ......

5 __ .

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

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

8... ......

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

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

11. .. ...

12......... __ .

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

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

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

16 .......

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

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

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

20 

21 -...

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

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

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

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

26 ..........

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

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

29.. ...

30...... ...

31 ..........

Oct.

154

154

146

138

130

126

126

130

126

122

114

122

122

138

150

142

138

134

162

189

232

325

376

412

430

Nov.

430

439

429

489

409

469

459

400

OQrt

070

336

429

J.QQ

con

530

510

459

439

41 Q

390

381

Dec.

345

338

327

318

309

qnn

292

97 e

qi o

OA K

381

390

400

419

419

400

381

097

309

300

284

OKft

9KQ

275

2G6

OCQ

Jan.

266

275

300

300

OAA

OQO

9Q9

309

309

300

292

266

318

OO7

363

381

459

con

510

499

499

489

489

510

con

Feb.

562

648

736

781

804

804

781 70-1

781

758

714

692

648

626

COO

562

KOA

489

469

479

479

489

479

479

469

 ICQ

439

Mar.

429

419

419

429

419

410

390

381

363

354

327

309

300

300

284

284

284

275

97 e

258

258

9f\n

226

Apr.

218

210

210

205

202

196

191

186

182

182

186

191

196

218

234

242

242

242

234

234

226

226

210

207

199

192

196

May

208

210

204

196

194

192

196

194

194

192

191

190

190

188

192

194

199

204

207

210

218

210

210

205

202

196

197

226

226

226

218

June

210

210

210

210

205

197

194

11)2

188

180

178

176

170

164

160

156

151

149

149

149

150

150

146

146

144

142

140

130

130

July

124

122

117

116

113

110

109

106

301

100

99

94

98

100

94

90

84

81

79

76

74

71

69

68

67

66

64

64

62

61

Aug.

60

58

55

52

52

51

52

52

52

52

51

50

51

50

47

45

45

44

44

43

42

42

41

41

42

47

45

43

42

42

42

Sept.

42

42

42

42

42

40

40

39

38

37

36

36

34

34

34

34

36

36

34

34

34

34

34

33

32

32

31

30

30

NOTE. Discharge based on gage readings at Lake Crescent for the period Oct. 26 to Nov. 4.
ELWHA RIVEE BASIN 17

Monthly discharge of Lyre River at Piedmont, Wash., for the year ending September

80, 1925

[Drainage area, 49.5 square miles]

Month

July

September _________________

Discharge in second-feet

Maximum

430 

530 

419 

520 

804 

429 

242 

226 

210 

124 

60 

42

804

Minimum

114 

336 

258 

258 

439 

226 

182 

188 

130 

61 

41 

30

30

Mean

177 

436 

323 

364 

608 

316 

208 

203 

167 

89.5 

47.6 

35.9

245

Per 

square 

mile

3.58 

8.81 

6.53 

7.35 

12.3 

6.38 

4.20 

4.10 

3.37 

1.81 

.962 

.725

4.95

Run-Ofl

Inches

4.13 

9.83 

7.53 

8.47 

12.81 

7.36 

4.69 

4.73 

3.76 

2.09 

1.11 

.81

67.32

Acre-feet

10,900 

25,900 

19,900 

22,400 

33,800 

19,400 

12,400 

12,500 

9,940 

5, 500 

2,930 

2,140

178,000

ELWHA RIVER BASIN 

ELWHA RIVER AT McDONAID BRIDGE, HEAR PORT AHGEIES, WASH.

LOCATION. In NE. % NW. M sec. 33, T. 30 N., R. 7 W., at McDonald Bridge, 

6J/£ miles above mouth and 8 miles southwest of Port Angeles, Clallam 

County.

DRAINAGE AEEA. 262 square miles (measured on Plate I, United States Geological Survey, Professional Paper 7).

RECORDS AVAILABLE. October 8, 1897, to December 31, 1901; October 1, 1918, 

to September 30, 1925.

GAGE. Since October 17, 1918, Stevens water-stage recorder on left bank; 

inspected by A. J. Hooper. Gage datum 206.29 feet above mean sea level.

DISCHARGE MEASUREMENTS. Made from bridge or by wading.

CHANNEL AND CONTROL. Bed composed of gravel, shifting. Banks high.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, from waterstage recorder, 6.1 feet at 5.30 a. m. November 19 (discharge, 8,680 secondfeet); minimum stage, from water-stage recorder, 0.79 foot at midnight 

September 30 (discharge, 345 second-feet).

1897-1901; 1918-1925: Maximum stage recorded, 10.6 feet November 

27, 1901 (discharge, 23,800 second-feet); minimum stage recorded, 0.80 foot 

October 18, 1897 (discharge, 170 second-feet).

ICE. Stage-discharge relation only slightly affected by ice during severe winters.

DIVERSIONS. None.

REGULATION. None.

ACCURACY. Stage-discharge relation changed at high water October 24, November 19, and December 11; not affected by ice. Rating curves used 

prior to December 11 fairly well defined; curve used subsequent to December 

11 well defined. Operation of water-stage recorder satisfactory. Daily 

discharge ascertained by applying to rating table mean daily gage heights 

obtained by inspecting gage-height graph or, for days of considerable variation in stage, by averaging results obtained by applying gage heights for 

shorter intervals. Records good October to December; excellent thereafter.

COOPERATION. Gage-height record and some discharge measurements furnished 

by Northwestern Power & Manufacturing Co.
18 SURFACE WATER SUPPLY, 1925, PART XII A

Discharge measurements of Elwha River at McDonald Bridge, near Port Angeles, 

Wash., during the year ending September 30, 1925

Date

Oct. 22 _ .......

Nov. 15 __ ....

Dec. 8 _____ .

Jan. 27 _ .......

Gage 

height

Feet 

1.17

1.83

1.48

2.20

Discharge

Sec.-ft. 

959

1,430

1,210

1,480

Date

Feb. 18. 

Mar. 12.. ......

Gage 

height

Feet 

1.86

1.62

2.62

2.47

Discharge

Sec.-ft. 

1,090

931

2,070

1,740

Date

May 22 __ ...

July 14. 

Gage 

height

Feet 

3.49

2.57

1.54

.85

Discharge

Sec.-ft. 

3,120

1,950

879

354

Daily discharge, in second-feet, of Elwha River at McDonald Bridge, near Port 

Angeles, Wash., for the year ending September SO, 1925

Day

1...... _ .....

2......... _ ..

3..... . ..

4. ________

5 ___ ......

6 ____ ......

7. ___ . __ .

8........ __ ..

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

10 ___ ........

11 __ . _____

12 ________ .

13 ... _ .....

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

15 

16 _______ ..

17 _____

18 __ . _ ......

19 _ . _ . _ ...

20 

21 _______ ...

22 .......

23 . _ ...

24 ________ .

25 .

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

27..,. . _ .

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

29 ______ ...

30 

31 _ .. ...

Oct.

3,360

1,800

1,270

1,020

915

848

832

832

773

717

696

907

848

2,730

3,100

2,480

1,690

1,370

1,180

1,080

1,050

1,020

1,080

5,040

5,520

3,870

3,790

3,320

4,030

3,710

3,250

Nov.

2,810

3,250

2,810

3,180

2,810

9 t&n

3,320

2,600

2,140

1,860

1,740

1,520

1,420

1,520

1,470

1,470

1,690

2,570

6,810

5,040

4,190

3,710

3,100

2,740

2,400

2,140

1,860

1,740

Dec.

1,740

1,740

1,640

1,690

1,580

1,370

1,270

1,370

3,640

4,310

4,480

4,310

3,580

3,820

2,770

2,360

1,850

1,730

1,550

1,410

1,330

1,240

1,180

1,130

1,130

1,240

1,190

1 ' 080

Jan.

1,090

1,110

1,290

1 140

983

Q74.

1,080

949

899

859

Q1Q

771

763

1 QAn

1,590

1,850

1,790

2,680

3,120

2

O9ft

1 7Qft

1,450

1,610

2,910

9 7Hfl

Feb.

3,440

5,710

6,070

4,650

3,980

3,350

2,840

2,700

9 4.Qft

2,160

1,970

1 7Qft

1,610

1,490

1,390

1,310

1,230

1,150

1,110

1,090

1,470

1,850

2,560

2,100

1,850

1,670

1,510

1,360

Mar.

1,320

1, 670

1,590

1,440

1,210

1,140

1,010

974

891

875

843

835

803

77Q

851

851

827

899

891

875

867

835

835

819

779

755

731

Apr.

715

715

755

771

819

899

992

1,310

1,790

2,230

2,300

2,040

1,790

1,970

3,280

3,350

2,630

2,230

1,910

1,730

1,590

1,460

1,350

1,270

1,230

1,200

1,210

1,300

1,380

May

1,490

1,470

1,420

1,410

1,670

2,300

2,490

2,100

1,850

1,850

2,230

2,300

2,360

2,770

2,910

3,350

3,740

3,660

3,580

3,740

3,660

3,120

2,770

2,560

2,420

2,420

2,630

4,220

3,120

2,560

2,300

June

2,160

1,970

1,910

1,730

1,670

1,730

1,670

1,910

1,970

1,730

1,730

1,730

1, 850

1,790

1,970

2,300

2,420

2,300

2,230

2,420

2,770

2,770

2,490

2,420

2,980

2,840

2, 560

2,230

2,160

July

1,910

1,850

1,970

2,040

1,910

1,790

1,730

1,670

1,910

2,100

1,910

1,790

1,970

1,910

1,610

1,530

1,530

1,390

1,320

1,290

1,300

1,310

1,250

1,180

1,150

1,140

1,170

1,160

1,080

1,020

1,020

Aug.

1,040

1,000

924

875

891

915

907

907

899

875

875

859

843

755

691

668

660

668

691

715

731

668

593

565

600

771

600

537

510

510

524

Sept.

579

551

537

530

510

491

484

510

ff\A.

517

498

A8d

478

472

459

465

453

447

417

394

388

400

417

417

394

388

361

350

378

356

Monthly discharge of Elwha River at McDonald Bridge, near Port Angeles, Wash., 

for the year ending September 30, 1925

[Drainage area, 262 square miles]

Discharge in second-feet

Month

April.. __ ..... _ 

July-- 

September.. ...... 

Maximum

5,520

6,810

4,480

3,120

6,070

1,670

3,350

4,220

2,980

2,100

1,040

579

6,810

Minimum

696

1,420

1,080

763

1,090

731

715

1,410

1,670

1,020

510

350

350

Mean

2,070

2,610

2,020

1,470

2, 350

1,000

1,570

2,600

2,180

1,550

751

454

1,710

Per

square 

mile

7.90

9.96

7.71

5.61

8.97

3.82

5.99

9.92

8.32

5.92

2.87

1.73

6.53

Inches

9.11

11.11

8.89

6.47

9.34

4.40

6.68

11.44

9.28

6.82

3.31

1.93

88.78

Acre-feet

127,000

155, 000

124,000

90,400

131, 000

61,500

93,400

160,000

130,000

95,300

46,200

27,000

1, 240, 000

Eun-ofE
STJEFACE WATEK SUPPLY, 1925, PAET XII A

DUNGENESS RIVER BASIN 

DUKGEWESS EIVEE HEAR SEQUIM, WASH.

LOCATION. In sec. 12, T. 29 N., R. 4 W., half a mile above State fish hatchery, 4^ 

miles southwest of Sequim, and 11 miles above mouth, Clallam County.

DKAINAGE AREA. 150 square miles (measured on Olympic National Forest map, 

1923 edition).

RECORDS AVAILABLE. June 1, 1923, to September 30, 1925; July 5, 1897, to July 

28, 1898, at a station about \y% miles below; July 29, 1898, to December 31, 

1900, at a station at Dungeness, 1 mile above mouth.

GAGE. Vertical and inclined staff on left wall of canyon about 100 feet above 

McLeay Lindsey Canal intake; read by W. H. Knapman.

DISCHAKGE MEASUREMENTS. Made from cable or by wading.

CHANNEL AND CONTKOL. Channel in winding gorge, bed composed of gravel and 

solid rock. Banks high; will not be overflowed. Control is gravel riffle, 

modified since installation of gage by canal headworks; shifts easily.

EXTKEMES OF DISCHARGE. Maximum stage recorded during year, 4.5 feet at 8 

a. m. November 19 (discharge, 3,000 second-feet); minimum discharge 

recorded, 140 second-feet on September 24 and 28.

1897-1900, 1923-1925: Maximum stage recorded, 6.0 feet February 12, 

1924 (discharge, 5,140 second-feet); minimum discharge recorded, 85 secondfeet December 26, 1897.

ICE. Stage-discharge relation not affected by ice.

DIVERSIONS. None.

REGULATION. None.

ACCURACY. Stage-discharge relation changed October 26, April 1, and frequently 

thereafter owing to changes made to diversion dam just below. Rating 

curve used prior to October 25 poorly defined; subsequent curves fairly well 

defined. Shifting-control method used April 17 to May 19. Gage read to 

hundredths once daily. Daily discharge ascertained by applying daily gage 

height to rating table. Records fair.

Discharge measurements of Dungeness River near Sequim, Wash., during the year 

ending September 30, 1925

Date

Nov. 14 ____

Nov. 19.... _ ..

Nov. 20 _____

Do. 

Nov. 21.... __ .

Gage 

height

Feet 

1.02

3.90

3.48

3.30

Discharge

Sec.-ft. 

299

2,290

1,840

1,720

Date

Apr. 12.........

Apr. 16 

May 24.. 

Gage 

height

Feet 

2.32

2.71

2.71

2.14

Discharge

Sec.-ft. 

750

1,080

1,140

715

Date

July 11. 

July 15.. __ 

Aug. 25. 

Aug. 29. ........

Gage 

height

Feet 

2.12

1.96

1.52

1.41

Discharge

Sec.-ft. 

647

545

195

178
20 SURFACE WATER SUPPLY, 1925, PART XII A

Daily discharge, in second-feet, of Dungeness River near Sequim, Wash., for the year 

ending September SO, 1925

Day

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

2.. ___ .. _ ..

3..... _ ......

4........ _ ...

5 ______ ...

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

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

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

9 _____ . _ ..

10-. . __ ....

11... _____ .

12 ___ .........

13 ___ ........

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

15 ___ .. __ ..

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

17 _ ...........

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

19........ _ ...

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

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

22. ___ . __ .

23 __ ..... .....

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

25 _______ ..

26 __ . .........

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

28 __ . __ .. ...

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

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

31

Oct.

570

380

291

241

219

199

190

180

171

162

162

154

154

413

COC

448

396

319

291

265

241

230

219

265

1,200

787

730

623

649

574

508

Nov.

450

623

488

623

552

508

1,290

623

488

415

351

322

308

295

308

322

382

2,400

1,760

1,200

910

730

675

529

488

450

398

382

382

Dec.

366

382

382

382

351

336

322

308

295

322

552

1,120

1,380

1,040

847

552

488

450

450

432

415

398

366

351

351

336

322

322

322

322

308

Jan.

308

295

282

282

269

269

269

257

257

257

245

245

245

234

234

222

222

675

415

469

488

508

552

529

450

415

382

366

351

322

351

Feb.

574

1,290

1,470

1,040

787

675

623

488

450

432

398

351

322

295

295

295

295

269

269

269

257

282

308

336

322

308

282

269

Mar.

282

336

322

322

308

295

269

295

282

245

234

234

222

222

222

222

211

211

211

234

234

245

234

234

234

245

245

245

245

245

245

Apr.

258

284

390

460

408

390

425

442

478

570

680

775

680

570

550

1,080

1,000

710

595

530

512

495

460

408

390

390

390

390

390

478

May

478

460

442

425

478

595

880

710

595

570

650

680

710

810

880

1,000

1,400

1,210

1,210

1,160

1,120

960

880

710

680

680

650

1,500

960

740

570

June

530

512

495

478

442

425

425

512

620

512

495

495

530

550

570

595

710

620

595

650

810

960

845

810

880

1,120

810

680

570

530

July

512

512

530

595

550

550

550

530

550

650

620

595

570

650

550

530

495

478

460

442

425

408

390

374

357

357

374

390

374

357

374

Aug.

357

357

342

326

297

297

326

357

342

342

326

312

312

270

258

245

222

222

201

201

245

258

222

201

201

258

234

212

173

173

164

Sept*

192

192

212

222

201

192

182

173

182

201

201

201

182

182

173

164

164

164

156

164

156

147

147

140

147

147

147

140

147

147

Monthly discharge of Dungeness River near Sequim, Wash., for the year ending

September SO, 1925

[Drainage area, 150 square miles]

Month

November _________________

December ________________ ...

January

February. __________________

March

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

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

July

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

Discharge in second-feet

Maximum

1,200 

2,400 

1,380 

675 

1,470 

336 

1,080 

1,500 

1,120 

650 

357 

222

2,400

Minimum

154 

295 

295 

222 

257 

211 

258 

425 

425 

357 

164 

140

140

Mean

379 

636 

470 

344 

473 

253 

519 

800 

626 

487 

266 

172

452

Per 

square 

mile

2.53

4.24 

3.13 

2.29 

3.15 

1.69 

3.46 

5.33 

4.17 

3.25 

1.77 

1.15

3.01

Run-off

Inches

2.92

4.73 

3.61 

2.64 

3.28 

1.95 

3.86 

6.14 

4.65 

3.75 

2.04 

1.28

40.85

Acre-feet

23,300 

37,800 

28,900 

21,200 

26,300 

15,600 

30,900 

49,200 

37,200 

29,900 

16,400 

10,200

327,000
SURFACE WATER SUPPLY, 1925, PART XII A 21 

PUGET SOUND BASINS

DOSEWALLIPS RIVER BASIN 

DOSEWAIIIPS KIVER AT BEHIND N, WASH.

LOCATION. In sec. 2, T. 25 N., R. 2 W., at old highway bridge, half a mile above 

mouth, at Brinnon, Jefferson County.

DRAINAGE AREA. 130 square miles (measured on Olympic National Forest map, 

edition of 1923).

RECORDS AVAILABLE. October 30, 1910, to October 31, 1911; July 14, 1924, to 

December 31, 1925, when gaging station was discontinued.

GAGE. Vertical staff on left bank 15 feet downstream from old highway bridge; 

read by B. L. Snyder.

DISCHARGE MEASUREMENTS. Made from highway bridge at gage or by wading.

CHANNEL AND CONTROL. Bed composed of gravel and small boulders; two or 

more channels at extremely high stage. Low-water control is riffle formed 

by gravel and small boulders; shifts easily. High-water control not defined.

EXTREMES OF DISCHARGE. Maximum stage recorded during period October 1, 

1924, to December 31, 1925, 3.6 feet on October 25 and 29 and November 19, 

1924 (discharge, 2,620 second-feet); minimum stage recorded, 0.24 foot at 

2.50 p. m. August 24, 1925, as result of regulation (discharge, 19 second-feet). 

1910-1911; 1924-1925: Maximum stage recorded, 6.2 feet November 20, 

1910 (discharge, 4,920 second-feet); minimum discharge recorded, that of 

August 24, 1925.

ICE. Stage-discharge relation not affected by ice.

DIVERSIONS. None.

REGULATION. A flash dam about 4 miles above used occasionally during lowwater periods in the interests of the logging industry.

ACCURACY. Stage-discharge relation changed frequently. Rating curves fairly 

well defined. Gage read to hundredths once daily. Daily discharge 

ascertained by applying daily gage height to rating table. Shifting-control 

method used October 14 to November 6, 1924, and April 18 to July 9, 1925. 

Records good except for October and November, 1925, for which they are 

poor.

Discharge measurements of Dosewallips River at Brinnon, Wash., for the period 

October 1, 1924, to December 31, 1925

Date

1924 

Nov. 13 ____

Nov. 22 ________

1QOC

Apr. 11 _____

Apr. 17 

Gage 

height

Feet 

1.48

2.30

2.33

2.78

Discharge

Sec.-ft. 

477

1,080

1,050

1,490

Date

1925

July 10. __ ....

July 15. __ ....

Aug 24

Do _._ .__

Aug. 25.. _ ....

Gage 

height

Feet 

2.61

2.17

.26

.30

.88

Discharge

Sec.-ft. 

1,460

668

525

on q

22.5

95.6

Date

1925

Aug. 29 ____ ..

Tifir* 17

Gage 

height

Feet 

0.66

1.10

1.80

1.83

Discharge

Sec.-ft. 

57.9

151

473

491
22 SURFACE WATER SUPPLY, 1925, PART XII A

Daily discharge, in second-feet, of Doseivallips River at Brinnon, Wash., for the 

period October 1, 1924, to December 31, 1925

Day

1924-25 

1 __ ..... .....

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

3. ... ___

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

5 .......

6 .....

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

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

9... ....

10 . . 

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

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

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

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

15 ....

16 

17... ......

18... _

19. ..

20 

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

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

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

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

25 __ .... ......

26 

27 _ ... _ .....

28...... _ .....

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

30..... .

31 ..

Day Oct

1925 

1. 11

2......... 11

3 ... 11

A. 11

5 . 11

6......... 11

7...... 11

8......... 11

9... ...... 11

10.... 11

Oct.

 600

1 200

1,710

1,320

765

487

267

198

198

202

2,620

1,320

1,590

1,590

2,620

1,320

Nov

8 11

8 11

8 11

8 11

8 11

8 11

6 11

3 11

6 12

6 21

>

1

1

1

2

1

1

1

6

t

^

^

1

3

7

1

8

'ov.

040

320

nnn

O7fl

080

808

210

170

690

620

cco

487

457

457

457

Jtjto

620

oqn

270

080

sno

690

eon

con

De

1,7

5

0

1,0

0

3

2

2

?

Dec.

520

620

690

620

CCO

457

427

520

1,120

1,370

1,270

1,170

ssn

586

CCO

A C7

497

400

372

339

400

070

9en

50 11.

60 12

Qe 10

30 14

45 16

KA 117

26 19

50 20

Jan.

339

427

339

317

297

287

258

249

240

214

198

655

620

1,120

802

620

457

457

690

7OC

Day

1925

Feb.

765

1,830

1 860

1,400

1,250

900

1,020

940

705

634

566

411

383

372

350

318

500

634

1,300

940

780

634

500

Oct.

112

109

109

116

116

116

116

109

. 116

Mar.

383

470

500

439

411

383

350

318

268

259

240

231

190

215

223

231

198

183

183

231

223

231

259

268

268

259

240

268

223

215

223

Nov.

345

218

121

115

130

1,530

445

300

300

300

Apr.

190

183

287

383

780

980

1,020

820

670

1,510

1,510

1,060

860

742

670

670

600

533

500

470

470

500

566

Dec

2,10

81

53

47

47

47

53

65

59

May

566

566

600

670

940

1,110

980

780

820

940

1,060

1,020

1,200

1,300

1,510

1,510

1,510

1,400

1,510

1,510

1,200

1,020

940

1,020

1,200

860

I

1

a 22..

2 26-

9 27..

B 28..

5 29..

0 30..

31..

June

820

742

705

670

670

705

670

742

900

705

670

670

742

742

742

860

900

860

820

900

980

980

860

860

940

1,020

940

940

820

780

3 ay

925

July

742

705

742

780

705

634

634

634

690

690

690

560

560

560

530

530

445

445

395

420

445

395

370

345

Oct.

118

118

115

114

113

118

121

118

118

118

Aug.

370

345

345

322

322

345

322

322

322

300

300

300

292

283

250

242

242

234

250

234

258

250

218

197

190

234

211

183

157

170

177

Nov.

218

183

151

123

123

151

151

151

123

123

Sept.

211

204

190

183

177

170

157

164

157

170

164

170

157

151

140

134

140

134

123

118

113

123

129

129

134

123

118-

123

123

121

Dec.

590

1,080

1,860

810

810

655

560

530

472

420

370

NOTE. Gage not read Oct. 1-7, 1924, Oct. 11, 24, 25, Nov. 1, 8, 14, 15, 1925. Gage-height record questionable Oct. 8-13, 1925. Discharge Oct. 1-13, 1924, and Nov. 14 and 15, 1925, estimated by comparison 

with records of near-by streams. Other missing periods interpolated.
SKOKOMISH EIVEE BASIN 23

Monthly discharge of Dosewallips River at Brinnon, Wash., for the period October 1, 

1924, to December 31, 1925

[Drainage area, 130 square miles]

Month

1S24-25

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

The year . __ ... __ __ . ......

1925

Discharge in second-feet

Maximum

2,620 

2,620 

1,590 

1,120 

1,860 

500 

1,510 

1,860 

1,020 

780 

370 

211

2,620

121 

1,530 

2,100

Minimum

457 

339 

128 

318 

183 

183 

566 

670 

345 

157 

113

113

109 

113 

226

Mean

789 

924 

636 

431 

798 

277 

629 

1,080 

812 

564 

284 

148

610

116

218 

662

Per 

square 

mile

6.07 

7.11 

4.89 

3.32 

6.12 

2.13 

4.84 

8.31 

6.25 

4.34 

2.03 

1.14

4.69

.892 

1.68 

5.09

..........

Run-off

Inches

7.00 

7.93 

5.64 

3.83 

6.37 

2.46 

5.40 

9.58 

6.97 

5.00 

2.34 

1.27

63.79

1.03 

1.87 

5.87

Acre-feet

48,500 

55, 000 

39,100 

26, 500 

44,200 

17,000 

37,400 

66,400 

48, 300 

34, 700 

16,200 

8,810

442, 000

7,130 

13, 000 

40,700

60,800

SKOKOMISH RIVEK BASIN 

NORTH FORK OF SKOKOMISH KIVEK BEIOW STAIKCASE KAPIDS, WEAK HOODSPOKT, WASH.

LOCATION. In SW.M sec. 3, T. 23 N., R. 5 W., 300 feet below Staircase Rapids, 

2 miles above Dry Creek, and 10^ miles northwest of Hoodsport, Mason 

County.

DRAINAGE AKEA. 60 square miles (measured on map of city of Tacoma's Gushman power project).

RECORDS AVAILABLE. July 30, 1924, to September 30, 1925.

GAGE. Stevens continuous water-stage recorder on right bank, inspected by 

employees of city of Tacoma.

CHANNEL AND CONTKOL. Bed composed of gravel; control is well-defined riffle 

in gravel and angular boulders; shifts only during high stages. Stage of 

zero flow, according to measurement made September 12, 1924, gage height 

0.2 foot it 0.1 foot.

EXTREMES OP DISCHARGE. Maximum stage recorded during year, from highwater mark in well, 6.88 feet, probably some time February 2, while recorder 

was not operating (discharge, 4,400 second-feet); minimum stage recorded, 

from water-stage recorder, 1.41 feet from noon to 5 p. m. September 28 

(discharge, 46 second-feet).

1924-1925: Maximum stage recorded, that of February 2, 1925; minimum flow probably occurred during the period September 15-20, 1924, 

when water-stage recorder was not operating (stage and discharge not determined) .

ICE. Float frozen in well December 18 and 20-28; discharge estimated from 

weather records.

DIVERSIONS. None.

REGULATION. None.
24 SURFACE WATER SUPPLY, 1925, PART XII A

ACCURACY. Stage-discharge relation permanent; rating curve well defined. 

Operation of water-stage recorder satisfactory except as noted in footnote 

to table of daily discharge. Daily discharge ascertained by applying to 

rating table mean daily gage height obtained from recorder graph by inspection or, for days of considerable variation in stage, by averaging results 

obtained by applying to rating table mean gage heights for shorter intervals. 

Records excellent, except for January and February for which they are good.

Discharge measurements of North Fork of Skokomish River below Staircase Rapids, 

near Hoodsport, Wash., during the year ending September 30, 1925

Date

Oct. 15-. .....

Oct. 25... .......

Oct. 31 ...

Nov. 23. 

Gage 

height

Feet 

5.04

4.21

3.68

Discharge

Sec.-ft. 

1,980

2,340

1,240

613

914

Date

Feb. 6 

Mar. 3 -

Apr. 18-. 

Gage 

height

Feet 

2.58

3.65

3.05

2.62

3.62

Discharge

Sec.-ft. 

371

843

549

379

859

Date

May 16 ......

July 8- __ 

Aug. 22 .........

Sept. 23.... __

Gage 

height

Feet 

3.92

2.52

1.71

1.48

Discharge

See.-ft. 

1,020

315

89.1

53.8

Daily discharge, in second-feet, of North Fork of Skokomish River below Staircase 

Rapids, near Hoodsport, Wash., for the year ending September 30, 1925

Day

1 __ ..........

2 _ .. _ ---..

4 ___ 

6....- ..

8 _ ... - 

9 ___ ........

10 

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

12 ___ - _ ....

13 

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

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

16 - 

17 __ 

18 _ ...........

19 __ ..........

20 __ ... _ ....

21 

22 ___ . _ ....

23 _

24.. .......

25 . _ ....

26 __ ...

27 _ ..........

23

23 __ ..........

30 ...

31 

Oct.

1,380

680

368

253

224

203

352

530

1,300

818

605

457

380

400

376

436

3,340

o 7nn

1,780

2,100

1,300

Nov.

1,200

1,600

1,900

1,230

735

526

422

388

396

413

475

2,550

1,120

762

630

498

422

388

384

Dec.

475

630

475

q co

1 490

1,500

818

489

418

QO,|

OK(3

318

OCQ

QQfl

531

QSM

Jan.

348

364

360

680

368

380

470

457

007

1,020

1,130

QfiC

i ^nn

7QO

KOI

372

818

1,420

Feb.

1, 750

3,800

2,600

875

818

735

610

565

541

413

392

364

360

1,180

995

600

484

Mar.

475

630

546

470

413

376

345

311

297

266

247

283

329

318

311

297

97«

947

Apr.

237

244

286

308

326

341

348

590

762

935

845

680

955

1,550

905

762

484

396

356

356

376

418

May

489

493

452

466

655

875

762

600

512

600

708

680

875

965

1,120

1,090

995

995

1,060

790

625

600

620

766

875

570

June

503

480

475

512

470

466

435

595

503

444

444

466

439

508

625

565

560

630

708

655

600

708

680

615

430

July

368

372

396

400

368

348

341

337

356

364

345

329

368

345

308

294

286

273

253

244

234

218

209

206

197

185

171

174

Aug.

171

163

144

142

137

132

129

125

118

118

109

99

97

93

93

93

95

0^

95

88

84

84

99

86

77

74

79

71

Sept.

120

95

79

76

72

70

68

68

66

64

62

60

59

59

58

95

72

70

97

68

60

58

56

55

53

51

49

89

72

NOTE. Gage-height record Jan. 5 to Feb. 7 lost because of broken pencil; discharge determined from 

graph completed from occasional faint trace, high-water marks in well, and records at near-by stations.
SKOKOMISH EIVEE BASIN 25

Monthly discharge of North Fork of Skokomish River below Staircase Rapids, near 

Hoodsport, Wash., for the year ending September 30, 1925

[Drainage area, 60 square miles]

Month

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

Discharge in second-feet

Maximum

3,340 

2,550 

1,650 

2,160 

3,800 

630 

1,550 

1,550 

708 

400 

171 

120

3,800

Minimum

203 

380 

224 

237 

360 

237 

237 

452 

409 

171 

71 

49

49

Mean

1,020 

916 

598 

669 

1,030 

337 

565 

770 

541 

289 

110 

69.2

573

Per

square 

mile

17.0 

15.3 

9.97 

11.2 

17.2 

5.62 

9.42 

12.8 

9.02 

4.82 

1.83 

1.15

9.55

Run-ofl

Inches

19.60 

17.07 

11.49 

12.91 

17.91 

6.48 

10.51 

14.76 

10.06 

5.56 

2.11 

1.28

129.74

Acre-feet

62,700 

54,500 

36,800 

41,100 

57,200 

20,700 

33,600 

47,300 

32,200 

17,800 

6,760 

4,120

415,000

WORTH FORK OF SKOKOMISH RIVER WEAR HOODSPORT, WASH.

LOCATION. In NE. % sec. 8, T. 22 N., R. 4 W., 1 mile below Cushman Reservoir 

dam site, 5 miles below Lake Cushman, and 3J^ miles west of Hoodsport, 

Mason County.

DRAINAGE AREA. 92 square miles (measured on Plate I, U. S. Geological Survey 

Professional Paper 7, and township plats).

RECORDS AVAILABLE. October 1, 1923, to September 30, 1925, at present site; 

August 17, 1910, to September 22, 1911; February 1, 1913, to September 

30, 1923, at Forest Service trail bridge, 1 mile above.

GAGE. Stevens water-stage recorder on left bank; inspected by city of Tacoma 

employees.

DISCHARGE MEASUREMENTS. Made from cable 1,200 feet above gage or by wading.

CHANNEL AND CONTROL. Channel curved above gage, straight below gage for 

200 feet. Banks high, not subject to overflow. Control composed of 

boulders and gravel, slightly shifting at extremely high stages.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, from waterstage recorder, 12.2 feet at 10 a. m. February 2 (discharge, 5,530 secondfeet); minimum stage from recorder, 0.44 foot at 2.20 p. m. September 18 

when tunnel gates were closed (discharge, 28 second-feet).

1913-1925: Maximum stage estimated at 23.5 feet January 6, 1914, 

during part of day when recorder was not operating (discharge estimated at 

14,000 second-feet); minimum stage recorded, that of September 18, 1925.

ICE. Stage-discharge relation affected by ice December 22-28, 1924; discharge 

estimated from weather records.

DIVERSIONS. None.

REGULATION. Flow regulated by natural storage at Lake Cushman and very 

slightly during June, 1924, to September, 1925, as a result of work in connection with the dam construction above.

ACCURACY. Stage-discharge relation changed frequently until April 17. Rating 

curves used prior to April 17 fairly well defined; that used after April 17 

well defined. Operation of water-stage recorder affected somewhat by 

sluggish intake after March 1. Daily discharge ascertained by applying 

to rating tables mean daily gage height determined from recorder graph by 

inspection or, for days when variation in stage was considerable, by averaging 

results obtained by applying mean gage heights for shorter intervals. Shifting-control method used January 24-26. Records good.
26 SURFACE WATER SUPPLY, 1925, PART XII A

Discharge measurements of North Fork of Skokomish River near Hoodsport, Wash., 

during the year ending September 30, 1925

Date

Oct. 14. ...

Nov. 24.. 

Jan. 23- 

Gage 

height

Feet 

10.20

6.98

6.36

9.32

Discharge

Sec.-fl. 

3,670

1,570

1,280

3,180

Date

A TYT 99

Gage 

height

Feet 

7.08

5.75

3.63

Discharge

Sec.-ft.

995

464

749

Date

May 15 

July 9.. .....

Aug. 23. -

Gage 

height

Feet 

5.89

3.73

1.97

Discharge

Sec.-ft.

455

165

Daily discharge, in second-feet, of North Fork of Skokomish River near Hoodsport, 

Wash., for the year ending September SO, 1925

Day

1 ___ 

2 

3 

5 ___ .... 

6 __ ..... . -

7 __ .........

8 .........

9--.-. 

10 __ .........

11 

12 __ ____ ..

13 

14 _____ . __ .

16 

17 

18 _ 

20... _ 

21 

22 _____ 

23 _____ 

24 

25 -

26 

27.. _ 

28 

29.. . __ -

30 

31 ___

Oct.

1,610

1,400

908

652

507

420

363

332

312

285

258

303

396

2,550

2,230

1,430

1,080

830

796

699

591

548

2,240

4,580

2,740

2,670

2,670

4,020

3,230

2,600

Nov.

2,110

2,410

2,670

2,470

1,830

2,530

2,050

1,580

1, 260

1,100

950

863

863

863

915

1,080

3,380

3,090

2,230

1,880

1,530

1,260

1,100

950

863

796

747

715

Dec.

731

915

950

915

813

715

652

636

1,090

2,170

2,050

1,580

1,630

1,340

1,060

880

780

715

668

621

562

507

481

468

468

520

780

683

Jan.

652

731

880

880

668

606

636

562

494

468

668

1,100

1,220

1,830

1,260

985

915

1,100

2,080

2,170

Feb.

2,160

5,020

3,380

2,950

2,530

1,830

1,780

1,480

1,180

1,060

985

863

813

747

699

1,160

2,530

2,230

1,730

1,430

1,100

Mar.

950

985

1,000

950

863

798

731

608

fi91

KQ4

507

4Q4

494

481

456

494

494

534

520

520

494

481

468

408

Apr.

385

385

444

468

494

534

652

1,140

1,220

915

QKA

1,630

1,720

1,380

1,110

959

832

748

694

642

605

546

534

635

May

668

694

668

655

694

862

959

862

652

668

748

803

803

1,030

1,150

1,280

1,200

1,110

1,150

1,150

862

775

721

721

748

1,410

1,330

959

803

June

721

6C8

721

694

668

642

668

775

721

655

630

630

617

721

694

668

668

775

803

721

668

748

803

775

721

630

581

July

546

523

523

546

534

500

478

456

456

478

478

456

456

478

425

406

396

377

368

358

348

339

320

310

301

292

292

283

274

258

Aug.

258

250

234

226

226

219

212

204

204

204

197

184

190

184

177

171

177

171

171

165

160

154

154

154

154

154

148

143

Sept.

154

171

154

148

143

138

138

138

133

133

129

127

124

136

143

146

154

148

143

133

131

127

124

123

121

122

136

143

Monthly discharge of North Fork of Skokomish River near Hoodsport, Wash., for the 

year ending September 30, 1925

[Drainage area, 92 square miles]

Month

July-- ..

SeptemberThe year ________________

Discharge in second-feet

Maximum

4,580 

3,380 

2,170 

2,950 

5,020 

1,060 

1,720 

1,410 

803 

546 

258 

171

5.020

Minimum

258 

715 

468 

444 

699 

408 

385 

652 

581 

258 

143 

121

121

Mean

1,490 

1,570 

929 

992 

1,790 

613 

786 

910 

691 

410 

191 

138

870

Per

square 

mile

16.2 

17.1 

10.1 

10.8 

19.5 

6.66 

8.54 

9.89 

7.51 

4.46 

2.08 

1.50

9.46

Run-ofl

Inches

18.68 

19.08 

11.64 

12.45 

20.31 

7.68 

9.53 

11.40 

8.38 

5.14 

2.40 

1.67

128.36

Acre-feet

91,600 

93,400 

57, 100 

61,000 

99, 400 

37, 700 

46, 800 

56,000 

41, 100 

25, 200 

11, 700 

8,210

629, 000
SKOKOMISH RIVER BASIN 27

SOUTH FORK OF SKOKOMISH RIVER NEAR POTIATCH, WASH.

LOCATION. In NW. K sec. 22, T. 22 N., R. 5 W., at head of canyon, 2 miles 

below Brown Creek and 7JHj miles west of Potlatch, Mason County.

DRAINAGE AREA. 68 square miles (measured on map of Skokomish River watershed of city of Tacoma's Cushman power project).

RECORDS AVAILABLE. October 1, 1923, to September 30, 1925.

GAGE. Stevens continuous water-stage recorder on right bank, about 300 feet 

below head of canyon; inspected by employees of city of Tacoma.

DISCHARGE MEASUREMENTS. Made from cable about 75 feet above gage or by 

wading.

CHANNEL AND CONTROL. Channel winding, bed composed of light gravel to 

heavy boulders. Banks high and not subject to overflow. Control varies 

with stage; for low water it is of light gravel, shifting; for medium and high 

stages, heavy boulder riffles, shifting at high stages only.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 12.0 feet at 

11.30 p. m. February 1 (discharge, 7,700 second-feet); minimum stage 

recorded, from water-stage recorder, 1.68 feet September 14, 15, 26, and 27 

(discharge, 65 second-feet).

1924-1925: Maximum stage recorded, from recorded range of stage, 14.86 

feet, some time January 31, 1924 (discharge, by extending rating curve, 

9,950 second-feet); minimum discharge, 44 second-feet, occurred from 6 p. m. 

September 19 to midnight September 20, 1924.

ICE. Stage-discharge relation slightly affected by ice during severe winters. 

Flow estimated from gage height and weather records.

DIVERSIONS. None.

REGULATION. None.

ACCURACY. Stage-discharge relation practically permanent; affected by ice 

December 18-28. Rating curve fairly well defined. Operation of water 

stage recorder fairly satisfactory except as noted in footnote to table of daily 

discharge. Daily discharge ascertained by applying to rating table mean 

daily gage heights determined from recorder graph by inspection or, for days 

of considerable variation in stage, by averaging results obtained by applying 

to rating table mean gage heights for shorter intervals. Records good except 

for the period March to May.

Discharge measurements of South Fork of Skokomish River near Potlatch, Wash., 

during the year ending September 30, 1925

Date

Oct. 16... ......

Nov. 11 

Nov. 12.... ..

Nov. 19-....

Nov. 20.........

Dec. 11 _ -.-.--

Gage 

height

Feet 

5.40

4.50

4.23

7.03

6.45

6.38

Discharge

Sec.-ft. 

1,350

904

802

2,430

2,160

2,030

Date

Dec. 12....... ._

Jan. 27.. ... .

Feb. 2... .......

Feb. 3.. .....

Feb. 4 ..

Mar. 11- 

Gage 

height

Feet 

6.05

4.68

8.53

8.72

6.50

3.30

Discharge

Sec.-ft. 

1,810

959

3,860

4,280

2,220

409

Date

Apr. 7 

Apr. 20 

July9 ...

Aug. 21... . ..

Gage 

height

Feet 

2.86

3.72

3.26

2.20

1.79

Discharge

Sec.-ft. 

303

591

444

142

83.8

3223 2<
28 SURFACE WATER SUPPLY, 1925, PART XII A

Daily discharge, in second-feet, of South Fork of Skokomish River near Potlatch, 

Wash., for the year ending September 30, 1925

Day

I.,.. _ ........

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.

2,000

1,180

832

575

469

398

351

327

292

265

249

427

498

2,950

1,940

1,480

1,010

788

635

556

520

503

520

3,310

2,990

1,790

1,790

2,140

3,370

2,240

1,790

Nov.

1,480

2,080

1,580

2,240

1,680

1,390

2,400

2,030

1,660

1,290

920

810

722

744

810

832

854

1,330

3,190

2,300

1,790

1,540

1,210

1,010

854

744

594

556

538

Dee.

556

744

656

832

744

656

575

503

538

2,160

1,760

1,360

1,160

1,540

1,060

832

700

503

436

382

312

312

436 K>7K

614

Jan.

635

854

876

942

1,330

988

788

656

614

744

635

556

520

404

342

1,320

1,180

1,420

1,240

2,600

2,720

1,480

1,060

988

1,110

1,580

9 Ififi

Feb.

3,610

5,040

3,990

2,320

2,400

1,860

1,480

1,330

1,210

988

876

810

744

700

656

594

556

520

503

556

1,310

1,740

2,160

1,480

1,210

1,110

965

854

Mar.

766

788

744

788

744

656

575

538

503

469

436

420

388

373

367

376

364

348

392

420

404

395

379

367

351

339

324

309

298

284

273

Apr.

262

265

268

281

287

284

298

324

420

472

452

420

398

373

503

898

898

788

700

575

538

503

469

436

401

376

361

345

354

May

520

503

469

420

452

520

452

385

373

373

379

392

404

436

436

469

486

436

420

398

379

354

336

318

298

287

379

452

420

376

June

342

312

342

503

436

385

351

382

373

361

330

315

306

301

290

292

284

268

257

252

260

254

234

224

226

226

214

202

186

180

July

171

167

165

165

161

155

152

148

144

144

142

141

174

159

146

139

134

130

127

125

124

121

119

117

116

114

111

110

108

106

105

Aug.

104

102

100

99

96

95

95

93

92

90

90

89

89

88

88

85

83

81

79

81

81

81

81

79

79

82

82

79

78

78

76

Sept.

88

88

81

76

75

74

75

72

72

69

68

68

67

65

65

83

82

76

92

83

75

71

68

68

67

65

65

71

81

88

NOTE. Water-stage recorder not operating satisfactorily Nov. 8-10, 16, 17, Feb. 22, 23, Mar. 18 to Apr. 

6, Apr. 10-19, May 4-13, and May 18 to June 1; discharge determined from recorded range of stage and 

records of North Fork.

Monthly discharge of South Fork of Skokomish River near Potlatch, Wash., for the 

year ending September 30, 1925

[Drainage area, 68 square miles]

Month

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

January __ ...............__ . _ ..

March.... ___ ... ____ _ ...

May _ _ ---. _ _ ----- __ -.--..

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

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

The year ............................

Discharge in second-feet

Maximum

3,370 

3,190 

2,160 

2,920 

5,040 

788 

898 

656 

503 

174 

104 

92

5,040

Minimum

249 

538 

312 

342 

503 

273 

262 

287 

180 

105 

76 

65

65

Mean

1,230 

1,330 

804 

1,110 

1,480 

457 

445 

419 

296 

137 

86.9 

74.6

651

Per 

square 

mile

18.1 

19.6 

11.8 

16.3 

21.8 

6.72 

6.54 

6.16 

4.35 

2.01 

1.28 

1.10

9.57

Run-off

Inches

20.87 

21.87 

13.60 

18.79 

22.70 

7.75 

7.30 

7.10 

4.85 

2.32 

1.48 

1.23

129. 86

Acre-feet

75, 600 

79, 100 

49, 400 

68,200 

82,200 

28,100 

26, 500 

25, 800 

17,600 

8,420 

5,340 

4,440

471, 000
SURFACE WATEB SUPPLY, 1925, PART XII A 29

NISQUALLY RIVER BASIN 

NISQTTALLY RIVER NEAR IA GRANDE, WASH.

LOCATION. In sec. 9, T. 15 N., R. 4 E., 1,200 feet below diversion dam of city 

of Tacoma's municipal power plant, 2^ miles southeast of La Grande, 

Pierce County.

DRAINAGE AREA. 287 square miles (measured on topographic map of Rainier 

National Park; map of Rainier National Forest, edition of 1918; and Plate 

IV, Water-Supply Paper 313).

RECORDS AVAILABLE. October 1, 1919, to September 30, 1925. September 5, 

1906, to October 31, 1911, fragmentary.

GAGE. Stevens long-distance recorder on left bank 1,200 feet below dam; also 

vertical staff on left bank at head of low-water control for use during periods 

of low water when silt interferes with normal stage-discharge relation. Recorder inspected and gage read by head-gate attendants.

DISCHARGE MEASUREMENTS. Made from cable 250 feet below gage or by wading.

CHANNEL AND CONTROL. Bed composed of bedrock and boulders. Banks high. 

A considerable amount of glacial silt is deposited during summer causing 

control to change temporarily.

EXTREMES OP DISCHARGE. Maximum stage recorded during year, from waterstage recorder, 11.0 feet from 2.30 to 6 p. m. February 3 (discharge, 8,610 

second-feet). Possibly no flow at gage for parts of several days during 

October and September, when entire flow may have been diverted into 

power conduit.

1920-1925: Maximum stage, from recorder, 15.6 feet from 3.30 to 6 a. m. 

December 12, 1921 (discharge, 19,200 second-feet). Possibly no flow at 

gage for parts of days when entire flow is diverted into power conduit.

ICE. Stage-discharge relation not affected by ice.

DIVERSION. City of Tacoma diverts water 1,200 feet above gage for power 

purposes. (See pp. 32-34 for records of this diversion.) Total monthly 

discharge is computed from determinations of combined flow of river and 

power conduit.

ACCURACY. Stage-discharge relation changed at high water February 3; affected 

by silt washed from settling basin and behind dam as indicated in footnote 

to table of daily discharge. Rating curves for normal control conditions 

well defined. Operation of water-stage recorder satisfactory except as noted 

in footnote to table of daily discharge. Daily discharge ascertained by use 

of discharge integrator except for extremely high water when discharge was 

determined by applying mean daily gage height to rating table or, for days 

of considerable variation in gage height, by averaging results obtained by 

applying mean gage height for shorter intervals. Records good except for 

low water when amount of backwater effect is doubtful. 

COOPERATION. Gage-height record furnished by city of Tacoma.

Discharge measurements of Nisqually River near La Grande, Wash., during the year 

ending September SO, 1925

Date

Jan. 20... ......

Jan. 21.... ..

Gage 

height

Feet 

7.41

7.24

Discharge

Sec.-ft. 

3,160

2,990

Date

Apr. 23.........

Gage 

height

Feet 

3.44

3.58

Discharge

Sec.-ft. 

496

519

Date Gage 

height

Feet 

1.17

Discharge

Sec.-ft. 

34.4
30 SURFACE WATER SUPPLY, 1925, PART XII A

Daily discharge, in second-feet, of Nisqually River near La Grande, Wash., for the 

year ending September SO, 1925

Day

1 _ .. .........

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

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

4 

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

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

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

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

9 

10. 

12 

13. 

14 

15 

16 

17 

18 

19. 

20 

21 

22 

23 

24 _ ..

25 _

26. 

27 

28 

29 

30 

31 

Oct.

155

225

217

50

1 5

154

182

50

5

348

2,050

1,680

1,860

1,410

1,380

1,860

1,590

Nov.

1,180

2,010

1,880

2,850

2,330

1,650

1,850

1,760

1,550

1,010

906

571

368

568

830

862

832

872

4,280

3,900

3,060

3,180

2,270

1,660

1,220

1,000

866

622

549

632

Dec.

614

896

704

1,020

1,080

766

650

399

334

1,260

4,560

4,170

3,660

2,820

2,420

1,770

1,200

884

840

644

489

367

340

274

381

385

390

671

1,220

899

Jan.

888

867

1,020

1,030

1,750

1,460

1,070

853

868

704

607

466

406

320

584

742

2,240

2,680

2,740

3,180

2,540

3,900

2,660

1 Qfift

1,670

1,740

2,080

3,420

5,090

6,270

Feb.

5,810

7,270

7,820

6,430

5,660

4,100

2,970

2,490

1,800

1,640

1,390

1,280

1,150

1,180

889

856

792

728

860

973

1,160

1,160

1,360

1 1 F*(\

1,070

992

796

Mar.

774

606

582

537

449

360

284

335

190

138

120

56

54

42

76

133

255

150

204

498

486

652

484

382

364

258

226

208

326

308

321

Apr.

340

275

272

266

560

468

509

480

671

1,100

1,520

2,160

1,700

1,530

1,450

1,720

1,790

1,580

1,530

1,170

843

713

610

480

388

487

304

310

392

529

May

724

740

714

611

833

1,220

1,490

1,030

840

858

890

988

1,060

1,180

1,610

1,740

1,520

1,490

1,470

1,540

1,120

782

772

554

552

577

664

620

544

450

June

241

156

235

285

207

157

232

190

258

248

148

123

286

346

220

309

369

398

420

592

979

810

634

570

74fi

872

681

658

336

294

July

235

314

365

484

458

199

176

183

256

321

376

406

185

190

219

229

275

252

323

172

162

161

130

147

100

209

158

243

204

112

170

Aug.

219

268

90

150

262

70

15

60

20

Sept.

6

8

10

NOTE. Braced figures show mean discharge for periods indicated. Stage-discharge relation for these 

periods aflected by deposition of silt. Flow estimated from gage-height graph constructed from gageheight records at regular and auxiliary gages and from notes of visiting engineers and of power-plant attendants. Gage-height record faulty Feb. 17-21 and Mar. 31 to Apr. 3. Discharge Feb. 17-21 estimated by 

comparison of combined flow with records of Puyallup River at Alderton; discharge Mar. 31 to Apr. 3 

estimated by interpolation of combined flow.

Monthly discharge of Nisqually River and Tacoma power conduit near La Grande 

Wash., for the year ending September SO, 1925

[Drainage area, 287 square miles]

Month

April. 

July 

Discharge in second-feet

Combined

Maximum

2,480 

4,920 

5,180 

6,950 

8,550 

1,350 

2,690 

2,300 

1,440 

917 

825

8,550

Minimum

1,030 

854 

848 

1,400 

666 

858 

940 

772 

671

Mean

River

429 

1,580 

1,200 

1,820 

2,350 

318 

872 

993 

400 

239 

71.4 

8.0

846

Power 

conduit

383 

595 

656 

646 

686 

675 

656 

623 

614 

555 

485 

375

578

Combined

Mean

812 

2,180 

1,860 

2,470 

3,040 

993 

1,530 

1,620 

1,010 

794 

556 

383

1,430

Per 

square 

mile

2.83 

7.60 

6.48 

8.61 

10.6 

3.46 

5.33 

5.64 

3.52 

2.77 

1.94 

1.33

4.98

Combined run-off

Inches

3.26 

8.48 

7.47 

9.93 

11.04 

3.99 

5.95 

6.50 

3.93 

3.19 

2.24 

1.48

67.46

Acre-feet

49,900 

130,000 

114,000 

152,000 

169,000 

61,100 

91,000 

99,600 

60,100 

48,800 

34,200 

22,800

1, 030, 000

NOTE. Combined results are comparable with results previously published for Nisqually River belowLittle Nisqually River near La Grande, Wash.; also for Nisqually River near and at La Grande, Wash.
NISQUALLY RIVER BASIN 31

LITTLE NISQUALLY RIVER NEAR ALDER, WASH.

LOCATION. In NW. M sec. 16, T. 15 N., R. 4 E., in Thurston County, 1,500 

feet above mouth, 3,000 feet from diversion dam of city of Tacoma's power 

plant, 1J^ miles southwest of Alder, Pierce County.

DRAINAGE AREA. 28.5 square miles (measured on Forest Service map).

RECORDS AVAILABLE. August 1, 1920, to September 30, 1925.

GAGE. Stevens water-stage recorder on left bank; installed April 16, 1921; 

inspected by employees of city of Tacoma.

DISCHARGE MEASUREMENTS. Made by wading or from cable.

CHANNEL AND CONTROL. One channel at all stages. Banks high, not subject 

to overflow. Control is riffle in heavy boulders 100 feet below gage. At 

extremely high stage, gage is on riffle.

EXTREMES OP DISCHARGE. Maximum stage recorded during year, from waterstage recorder, 5.1 feet at 6 a. m. November 19 (discharge, 1,440 second-feet); 

minimum stage recorded, 0.82 foot on September 30 (discharge, 3.5 secondfeet).

1920-1925: Maximum stage recorded, from water-stage recorder, 6.4 feet 

at 3 p. m. January 7, 1923 (discharge, 2,220 second-feet); minimum discharge 

occurred on September 30, 1925.

ICE. Stage-discharge relation affected by ice during severe winters. Flow 

estimated from discharge measurements, observer's notes, and weather 

records.

DIVERSIONS. None.

REGULATION. None.

ACCURACY. Stage-discharge relation changed gradually April 23 to May 28 

and August 7 to September 30. Logs in channel and on control caused 

uncertainty as to amount of backwater present after end of March. Rating 

curve used to April 22 well defined; that used May 29 to August 6 fairly 

well denned. Shifting-control method used April 23 to May 28 and August 

7 to September 30. Operation of water-stage recorder satisfactory except as 

noted in footnote to table of daily discharge. Discharge ascertained by 

applying to rating table mean daily gage height obtained from recorder 

graph by inspection. Records excellent October, November, and January 

to March; otherwise fair.

Discharge measurements of Little Nisqually River near Alder, Wash., during the 

year ending September 30, 1925

Date

Oct. l-_ ... .-

Gage 

height

Feet 

1.62

3.00

Dis- 1 

charge j

Sec.-ft. ] 78.8

444 i

1

Date

Apr. 22... ......

Gage 

height

Feet 

1.95

1.31

Discharge

Sec.-ft. 

143

46.1

Date

Aug. 6- ... 

Gage 

height

Feet 

0.92

Discharge

Sec.-ft. 

9.8
32 SUBFACE WATER SUPPLY, 1925, PART XII A

Daily discharge, in second-feet, of Little Nisqually River near Alder, Wash., for the 

year ending September 30, 1925

Day

1 ----_.-_-----.

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

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

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

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

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

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

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

9.....

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

11 ... . . ...

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

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

14-.-. ___._____.

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

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

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

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

19 _ ............

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

21..... . . .

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

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

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

25... .___._. _____

26.... ....____._.

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

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

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

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

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

Oct.

56

49

38

28

22

18

15

99

24

OK

24

30

69

197

134

82

60

46

36

00

28

26

24

1 ^9

540

372

404

187

865

Nov.

317

445

QQ7

600

472

330

408

386

314

187

213

227

240

322

1,140

709

560

326

182

144

102

90

90

Dec.

| 200

1

994

146

117

220

484

VAft

one

 60

1 80

Jan.

91 A

391

305

221

167

148

169

141

130

117

09

84

78

571

599

COO

600

rno

792

480

287

OOn

393

700

990

Feb.

890

1,090

940

789

580

393

336

290

991

182

1 KQ

139

117

109

100

90

87

94

189

238

281

01 1

OfiQ

99O

Mar.

160

153

141

124

109

96

90

82

75

72

62

60

59

59

74

90

78

82

Oft

94

92

90

84

77

72

66

64

60

57

KA

Apr.

52

50

57

102

105

96

87

84

109

155

174

146

113

119

153

160

179

227

157

141

137

109

100

O4.

90

90

96

May

96

96

on

85

89

102

137

137

103

so

82

75

75

Sin

77

82

80

80

94

78

70

59

52

4.K

49

40

3O

45

46

45

June

42

45

87

128

105

87

72

64

60

53

47

44

42

41

39

38

34

32

31

31

30

28

27

97

24

22

21

20

18

17

July

16

15

15

15

15

15

15

15

14

15

15

14

14

15

14

14

14

14

14

13

13

12

12

11

10

9.2

9.2

9.2

9.2

Q 9

Aug.

9.6

9.6

0 fi

10

10

10

10

11

11

19

11

11

11

11

12

1111

12

12

12

12

14

151<i

11

11

11

9.6

8.4

7.6

7.6

Sept.

6.8

6.8

6 4

6.4

6.4

6.0

6.0

6.0

6.4

6 4

6.0

6.0

5.8

6.0

6.4

6.0

6.8

8.0

14

9.6

8.4

7.2

6.0

5.8

5.8

5.8

6.4

5.2

4.0

3.5

NOTE. Water-stage recorder not operating Oct. 9, Nov. 29 to Dec. 4, and Dec. 17 to Jan. 1; discharge 

estimated.

Monthly discharge of Little Nisqually River near Alder, Wash., for the year ending

September 30, 1925

[Drainage area, 28.5 square miles]

Month

April ______________________ .

July ._ .. .

Discharge in second-feet

Maximum

865 

1,140 

484 

990 

1,090 

160 

227 

137 

128 

16 

15 

14

1,140

Minimum

15 

90

78 

87 

54 

50 

39 

17 

9.2 

7.6 

3.5

3.5

Mean

146 

327 

149 

358 

336 

85.0 

123 

75.9 

45.2 

13.2 

10.9 

6.54

138

Per 

square 

mile

5.12 

11.5 

5.23 

12.6 

11.8 

2.98 

4.32 

2.66 

1.59 

.463 

.382 

.229

4.84

Run-off

Inches

5.90 

12.83 

6.03 

14.53 

12.29 

3.44 

4.82 

3.07 

1.77 

.53 

.44 

.26

05.91

Acre-feet

8,980 

19,500 

9,160 

22,000 

18,700 

5,230 

7,320 

4,670 

2,690 

812 

670 

389

100,000

TACOMA POWER CONDUIT HEAR IA GRAHDE, WASH.

LOCATION. In sec. 9, T. 15 N., R. 4 E., in Thurston County, 750 feet below head 

gate at diversion dam of municipal power plant of city of Tacoma, 2J^ miles 

southeast of La Grande, Pierce County.

RECORDS AVAILABLE. October 1, 1919, to September 30, 1925.

GAGE. Stevens long-distance recorder on right side 750 feet below head gate; 

inspected by head-gate attendants.
NISQUALLY EIVEE BASIN 33

DISCHARGE MEASUREMENTS. Made from footbridge at gage or by wading.

CHANNEL AND CONTROL. Open concrete-lined canal for 50 feet below gage 

merging into concrete-lined tunnel 1.9 miles in length.

EXTREMES OP DISCHARGE. Maximum stage recorded during year, from waterstage recorder, 10.6 feet from 5 to 7 a. m. May 14 (discharge, 920 secondfeet); no flow when operating gates are closed or when waste gates are 

opened wide for cleaning settling basin.

1920-1925: Maximum stage recorded, that of May 14, 1925; no flow when 

operating gates are closed and when waste gates are opened wide.

ICE. Stage-discharge relation not affected by ice.

REGULATION. Flow regulated at head gate to meet requirements of power plant.

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

Operation of water-stage recorder satisfactory except as noted in footnote to 

table of daily discharge. Daily discharge ascertained by use of discharge 

integrator. Records excellent.

Canal diverts water from left bank of Nisqually River in SW. ^i sec. 9, T. 15 

N., R. 4 E. Willamette meridian. Water used for municipal power.

Discharge measurements of Tacoma power conduit near La Grande, Wash., during 

the year ending September 30, 1925

Date

Oct. 1 ..... 

Jan. 23... ___

Gage 

height

Feet 

6.50

9.59

Discharge

Sec.-ft. 

446

784

Date

Apr. 23 ....

1

Gage 

height

Feet 

9.87

6.81

Discharge

Sec.-ft. 

810

456

Date Gage 

height

Feet 

8.49

Discharge

Sec.-ft. 

668

Daily discharge, in second-feet, of Tacoma power conduit near La Grande, Wash., for 

the year ending September 30, 1925

Day

1... .. _ ... ...

2 ___ ....

3. _ ...... _ .

4 ___ . .......

5 ___ . ___ .

6 ..........

7..... ____ ..

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

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

10 ..........

11. _ .... ......

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

13 _ ......

14......... __ .

15. ___ . _ ....

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

17. .. ..

18 _ -..

19. ..... _ .

20.. _ ......

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

22 .........

23 .........

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

25.-. ..

26 .... _ ..

27 

28... ......

29 ..

30 

31 .

Oct.

448

429

438

418

326

323

293

312

377

306

269

288

384

462

466

472

391

346

322

321

306

315

300

392

428

402

434

476

472

480 isn

Nov.

480

420

486

486

482

511

580

643

558

642

642

670

663

665

644

494

620

672

638

660

639

674

590

622

636

629

575

638

620

563

Dec.

622

650

661

664

658

676

580

660

678

656

624

668

638

571

657

680

712

I 700

712

646

080

646

662

643

577

636

632

646

Jan.

588

632

647

598

623

629

644

630

631

626

578

613

648

658

628

620

627

560

649

680

667

662

692

699

594

684

716

690

719

720

Feb.

562

682

728

702

745

709

680

577

701

722

706

713

709

707

582

712

674

678

672

670

667

595

722

710

721

722

725

705

Mar.

576

722

730

728

738

734

724

606

732

714

696

729

714

694

590

708

710

700

698

680

583

438

600

684

710

714

714

700

527

674

660

Apr.

640

705

707

712

582

702

640

624

616

634

693

530

683

678

654

652

682

638

558

645

698

690

696

740

704

508

682

648

638

715

May

582

548

538

620

593

646

704

650

683

584

619

640

574

637

624

648

512

634

614

644

666

674

658

548

652

652

686

746

707

527

490

June

620

718

723

664

652

668

540

650

660

632

670

685

658

500

608

622

618

609

606

591

458

615

592

564

574

568

610

520

604

620

July

592

572

541

433

444

592

582

566

564

581

535

450

570

573

568

535

538

562

438

566

598

603

590

574

580

462

596

601

610

603

592

Aug.

606

502

584

604

580

568

580

575

490

570

608

593

552

531

402

297

420

439

567

590

576

608

420

340

309

376

407

273

300

310

451

Sept.

474

346

470

526

386

410

398

462

364

402

392

455

452

494

385

334

288

358

330

262

252

345

428

465

416

387

272

234

237

234

NOTE. Water-stage recorder not operating December 18-21; discharge estimated.
34 SURFACE WATER SUPPLY, 1925, PART XII A

Monthly discharge of Tacoma power conduit near La Grande, Wash., for the year 

ending September 30, 1925

Month

October _____ _ ___________________

November.. _____________ _ .............

February ______ ________________ ...

April ______________________________

May. _________ _________ __ .......---...

June _______ _ ....................................

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

August _.. .. ...... ...................................

Discharge in second-feet

Maximum

480 

674

720 

745 

738 

740 

746 

723 

610 

608 

526

746

Minimum

269 

420 

571 

560 

562 

438 

508 

490 

458 

433 

273 

234

234

Mean

383 

595 

656 

646 

686 

675 

656 

623 

614 

555 

485 

375

578

Run-off in 

acre-feet

23,600 

35,400 

40,300 

39,700 

38,100 

41,500 

39,000 

38,300 

36,500 

34,100 

29,800 

22,300

419,000

PUYALLUP RIVER BASIN 

PUYAIIUP RIVER NEAR ELECTRON, WASH.

LOCATION. In NE. ^i NW. M sec. 3, T. 16 N., R. 6 E., 1,000 feet above 

intake of Puget Sound Power & Light Co.'s flume, a quarter of a mile below 

Mowich River, and 10 miles southeast of Electron, Pierce County.

DRAINAGE AREA. 91 square miles (measured on Plate IV, Water-Supply 

Paper 313).

RECORDS AVAILABLE. January 1, 1909, to September 30, 1925.

GAGE. Friez water-stage recorder on left bank at gaging bridge; inspected by 

William Chambers. Datum lowered 1.00 foot March 9, 1918.

DISCHARGE MEASUREMENTS. Made from gaging bridge at gage.

CHANNEL AND CONTROL. Channel straight for 150 feet above and below gage. 

Banks high and wooded. One channel at all stages. Bed composed of 

boulders and glacial debris; shifting.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 5.18 feet at 

7.45 a. m. December 11 (discharge, 2,830 second-feet); minimum stage 

recorded, 1.12 feet from 8 p. m. October 11 to 2 a. m. October 12 (discharge, 

169 second-feet).

1909-1925: Maximum stage estimated from incomplete gage-height record, 6.4 feet at noon December 18, 1917 (discharge, 4,800 second-feet); 

minimum discharge estimated at 100 second-feet on December 12, 1922, 

when stage-discharge relation was affected by ice.

ICE. Stage-discharge relation slightly affected by ice except during mild 

winters. Flow estimated from observer's notes and weather records.

DIVERSIONS. None above station.

REGULATION. None.

ACCURACY. Stage-discharge relation changed frequently throughout year; 

affected by ice December 22-26. Standard rating curve developed in 1923 

and well defined below 1,500 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. Shifting-control method used throughout year. Records good.

COOPERATION. Discharge measurements and gage-height record furnished by 

Puget Sound Power & Light Co.
PUYALLUP RIVER BASIN 35

Discharge measurements of Puyallup River near Electron, Wash., during the year 

ending September 30, 1925

Date

Oct. 11.........

Oct. 18 __ .....

Nov. 7-, . ....

Nov. 18 .........

Dec. 30-. .......

Feb. 7 

Feb. 14 .........

Gage 

height

Feet 

1.14

1.26

2.18

2.23

2.55

1.55

2.55

1.86

Discharge

Sec.-ft. 

173

459

473

699

660

321

Date

Feb. 22-. ...

Mar. 18 - ..

Apr. 7 .... ...

Apr. 21--. _ ...

Gage 

height

Feet 

1.84

1.54

1.49

1.65

2.06

2.03

2.39

1.81

Discharge

Sec.-ft. 

339

248

217

290

410

491

672

364

Date

June 12 .........

July 2-. ........

July 21-. .......

Aug. 23.. ......

Gage 

height

Feet 

2.15

2.36

2.39

2.55

1.97

2.00

1.59

Discharge

Sec.-ft.

527

615

659

799

391

448

243

Daily discharge, in second-feet, of Puyallup River near Electron, Wash., for tht> 

year ending September 30, 1925

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.

498

478

390

287

248

222

212

226

222

192

176

209

234

341

352

267

229

209

204

204

209

202

222

466

1,100

663

498

498

478

410

Nov.

383

598

604

756

550

454

458

426

478

338

311

296

515

540

486

478

525

1,500

1,180

1,140

1,020

805

675

593

530

490

466

466

470

Dec.

486

520

474

520

494

454

418

380

438

2,560

1,800

1,700

1,340

1.020

669

515

486

446

446

426

400

418

566

861

681

525

Jan.

486

454

422

406

478

402

358

334

330

352

317

302

281

273

250

242

287

571

555

687

675

627

763

540

442

422

422

418

805

1,140

1,180

Feb.

1,140

1,500

1,750

1,180

875

681

571

486

406

380

348

317

317

305

290

284

276

299

341

352

386

380

366

344

314

Mar.

308

344

330

327

311

296

281

278

267

253

245

234

232

226

229

248

242

355

426

362

390

372

352

355

327

314

305

98/1

278

270

Apr.

273

264

267

270

278

281

296

344

486

663

898

1,060

833

639

735

868

805

627

530

458

410

386

380

358

344

341

341

348

402

466

May

490

486

478

494

621

847

988

749

615

576

576

598

645

770

875

1,100

1,060

1,100

1,220

1 260

1,460

1,060

868

770

687

735

847

735

576

506

June

458

446

422

390

369

366

376

446

502

482

434

470

555

510

535

588

627

639

717

935

1,220

1,140

905

861

988

1,100

988

833

735

717

July

651

663

729

777

742

681

633

627

723

882

950

875

791

861

798

854

861

749

699

693

763

763

763

717

699

669

935

988

770

791

920

Aug.

950

805

675

669

756

798

819

912

861

735

711

723

582

454

394

366

394

458

566

742

663

515

398

341

338

454

383

317

320

410

478

Sept.

462

466

540

486

438

494

525

550

470

454

434

450

486

466

383

327

305

341

276

256

278

338

390

422

372

320

245

219

197

192
36 SURFACE WATER SUPPLY, 1925, PART XII A

Monthly discharge of Puyallup River near Electron, Wash., for the year ending

September 30, 1925

[Drainage area, 91 square miles]

Month

October _____ .. _____ ____ __

December ___________________

February _______ __________

April....... _______________ ...............

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

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

The year ________________

Discharge in second-feet

Maximum

1,100 

1,500 

2,560 

1,180 

1,750 

426 

1,060 

1,460 

1,220 

988 

950 

550

2,560

Minimum

176 

296 

380 

237 

276 

216 

264 

478 

366 

627 

317 

192

176

Mean

347 

596 

707 

489 

576 

299 

488 

789 

658 

775 

580 

386

558

Per 

square 

mile

3.81 

6.55 

7.77 

5.37 

6.33 

3.29 

5.36 

8.67 

7.23 

8.52 

6.37 

4.24

6.13

Run-off

Inches

4.39 

7.31 

8.96 

6.19 

6.59 

3.79 

5.98 

10.00 

8.07 

9.82 

7.34 

4.73

83.17

Acre-feet

21,300 

35,500 

43,500 

30,100 

32,000 

18,400 

29,000 

48,500 

39,200 

47,700 

35,700 

23,000

404,000

PUYALIUP SIVEB AT AIDEETOHT, WASH.

LOCATION. On line between sec. 25, T. 20 N., R. 4 E., and sec. 30, T. 20 N., R. 5

E., at highway bridge 1 mile north of Alderton, Pierce County, and 1J^

miles above Stuck River. 

DRAINAGE AREA. 410 square miles (measured on Plate IV, Water-Supply

Paper 313).

RECORDS AVAILABLE. November 20, 1914, to September 30, 1925. 

GAGE. Chain gage on highway bridge, installed December 15, 1920; read by

Mrs. H. D. Foster.

DISCHARGE MEASUREMENTS. Made from bridge at gage. 

CHANNEL AND CONTROL. Bed composed of silt and gravel; shifting. Right

bank is overflowed at gage height about 9 feet; left bank high and not subject

to overflow. 

EXTREMES OP DISCHARGE. Maximum stage recorded during year, 5.86 feet on

December 11 (discharge, 8,380 second-feet); minimum stage recorded, 0.55

foot October 9 (discharge, 415 second-feet).

1915-1925: Maximum stage recorded, 11.5 feet at 11 a. m. December 12,

1921 (discharge, 21,200 second-feet); minimum stage, 0.28 foot September

22, 1924 (discharge, 228 second-feet). 

ICE. Stage-discharge relation slightly affected by ice for a few days during

severe winters. 

DIVERSIONS. None. 

REGULATION. The operation of the Puget Sound Power & Light Co.'s plant at

Electron does not materially affect the natural flow as the pondage utilized is

small. 

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

defined below 5,000 second-feet. Gage read to hundredths once daily.

Some diurnal fluctuation. Daily discharge ascertained by applying daily

gage height to rating table. Records good.
PTJYA.LLUP RIVER BASIN 37

Discharge measurements of Puyallup River at Alderton, Wash., during the year 

ending September SO, 1925

Date

Oct. 15. __ ....

Dec. 5.. ........

Jan. 16. ........

Feb. 13... ......

Gage 

height

Feel 

1.09

2.30

1.56

1.70

Discharge

Sec.-ft. 

787

1,990

1,230

1,370

Date

Mar. 17... ......

Apr. 15 

May 18. _ .....

Gage 

height

Feet 

1.62

2.20

2.62

1.76

Discharge

Sec.-ft. 

1,320

2,000

2,500

1,490

Date

July 29. ........

Gage 

height

Feet 

1.53

.93

Discharge

Sec.-ft. 

1,220

665

Daily discharge, in second-feet, of Puyallup River at Alderton, Wash., for the year 

ending September 80, 1925

Day

1. ....... __ .

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

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

4. _ ....... ...

5 .......

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

7---.--. ___ .

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

9.... .....

10 

11 

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

13 .....

14-.------. _ ..

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

16... -...

17 

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

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

20 

21 .. .

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

23-.....--- .

24 _____ .....

25 ..

26 

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

28 . .

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

30 

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

Oct.

510

445

445

478

478

445

445

445

478

575

610

575

760

800

935

890

845

682

645

645

510

720

2,460

1,940

1,710

1,280

1,280

Nov.

935

1,280

1,490

1,820

1,820

1,600

1,380

1,600

1,600

1,490

1,490

845

845

1,380

1,820

1,820

4,140

3,970

3,970

3,650

2,460

2,460

2,460

2,320

2,180

2,060

1,940

Dec.

2,190

1,490

1,030

2,320

2,060

1,710

1,380

1,280

1,180

2,880

8,380

6,340

5,200

5,200

5,200

5,200

5,010

1,710

1,080

935

1, 230

1,180

1,130

1,490

1,710

2,060

2

AKf\

3,180

2,460

Jan.

2,190

1,230

2,460

1,820

1,710

1,600

1,280

1,380

1,380

1,820

1,380

1,380

1,600

1,710

1,600

1,280

890

935

2,320

2,320

2,460

2,060

1,820

1,820

1,820

4,480

4,310

Feb.

3,970

4,830

4,650

4,310

3,490

2,740

2,740

9 IQfl

1,820

1,710

1,280

1,380

1,280

1,180

1,180

1,180

980

845

980

1,080

1,180

1,280

1,230

1,180

1,130

980

Mar.

980

1,030

1,080

980

1,180

890

890

935

935

720

682

682

760

800

845

935

1,230

980

1,180

1,940

1,380

1,490

1,380

1,600

1,380

1,080

1,030

935

890

845

Apr.

800

845

760

800

845

800

760

720

1,030

1,600

1,820

3,330

2,600

1,940

1,940

2,060

2,320

2,060

1,820

1,820

1,490

1,380

1,280

1,180

1,030

1,030

935

890

935

1,080

May

1,080

1,080

1,080

1,080

1,710

1,820

1,820

2,060

1,600

1,380

1,600

1 600

1,710

1,940

2,320

2,600

2,460

2,740

2,880

2,320

2,190

1,710

1,710

1,710

1,380

1,940

2,060

1,820

1,380

1,130

June

1,180

1,080

1,030

845

682

760

800

935

1,280

1,380

980

1,080

1,230

1,280

1,380

1,380

1,380

1,380

1,490

1,710

1,600

2,320

1,940

1,600

1,710

2,190

1,940

1,600

1,600

1,380

July

1,180

1,230

1,380

1,380

1,490

1,280

1,180

1,180

1,180

1,490

1,710

1,600

1,490

1,380

1,490

1,380

1,380

1,380

1,280

1,180

1,180

1,280

1,180

1,230

1,080

1,130

1,230

1,600

1,230

1,230

1,130

Aug.

1,230

1,130

QSfl

935

935

1,080

1,130

1,130

1,180

1,180

1,130

1,180

1,130

845

645

610

610

682

845

1,080

1,230

1,080

720

682

510

682

760

682

510

542

610

Sept.

610

610

610

800

845

760

760

760

720

720

682

682

682

760

682

645

510

542

542

575

575

478

720

682

610

542

510

542

542

510

Monthly discharge of Puyallup River at Alderton, Wash., for the year ending September 80, 1925

[Drainage area, 410 square miles]

Discharge in second-feet Run-ofl

Month

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

September. ________ ___ . .......

The year.. _________ .. _ .

Maximum

2,460

4,140

8,380

4,480

5,200

1,940

3,330

2,880

2,320

1,710

1,230

845

8,380

Minimum

415

845

935

890

845

682

720

1,080

682

1,080

510

478

415

Mean

830

2,010

2,750

2,000

2,030

1,070

1,400

1,790

1,370

1,310

893

640

1,510

Per 

square 

mile

2.02

4.90

6.71

4.88

4.95

2.61

3.41

4.37

3.34

3.20

2.18

1.56

3.68

Inches

2.33

5.47

7.74

5.63

5.16

3.01

3.80

5.04

3.73

3.69

2.51

1.74

49.85

Acre-feet

51, 000

120,000

169,000

123, 000

113,000

65, 800

83,300

110,000

81,500

80,600

54,900

38,100

1,090,000
SURFACE WATER SUPPLY, 1925, PART XII A

PITYAIIITP RIVER AT PITYAIIITP, WASH.

LOCATION. In NE. M sec. 20, T. 20 N., R. 4 E., 1 mile northwest of Puyallupr 

about three-fourths of a mile above Clark Creek, and 3% miles below mouth 

of Stuck River, Pierce County.

DRAINAGE AREA. 914 square miles (measured on Plates IV and XI, WaterSupply Paper 313).

RECORDS AVAILABLE. May 1, 1914, to September 30, 1925.

GAGE. Stevens continuous water-stage recorder on left bank since December 3, 

1919.

DISCHARGE MEASUREMENTS. Made from cable 50 feet below gage.

CHANNEL AND CONTROL. Stream bed composed of light silt; shifting. Control 

formed by section of stream bed extending some distance downstream.

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

'stage recorder, 10.70 feet at 11 p. m. December 11 (discharge, 18,600 secondfeet); minimum discharge, 1,190 second-feet at 8.30 a. m. September 30.

1914-1925: Maximum stage recorded, 34.15 feet 8 at 4.45 p. m. December 

18, 1917 (discharge, 40,500 second-feet); minimum stage recorded, 17.36 

feet at 8 p. m. November 18, 1917 (discharge, 726 second-feet).

ICE. Stage-discharge relation not affected by ice.

DIVERSIONS. Two hydroelectric plants, owned by the Puget Sound Power & 

Light Co., divert water above station. Water for the Electron plant is 

diverted from Puyallup River 10 miles above Electron into an equalizing 

basin having a capacity of 185 acre-feet; water used at this plant is returned 

directly into the river. Water for the Dieringer plant is diverted from 

White River at Buckley into Lake Tapps (capacity, 51,000 acre-feet) and 

after use is discharged into Stuck River.

REGULATION. See "Diversions."

ACCURACY. Stage-discharge relation changed frequently. Well-defined rating 

curve developed during 1921 used as standard form of curve for this station, 

and changes in control indicated by frequent discharge measurements have 

been assumed to yield curves parallel to this. Operation of water-stage 

recorder satisfactory. Daily discharge ascertained by applying to rating 

table mean daily gage height obtained by inspecting recorder graph and corrected as to time and amount of shift in accordance with results of discharge measurements. Records good.

Discharge measurements of Puyallup River at Puyallup, Wash., during the year 

ending September SO, 1925

Date

Oct. 15.........

Jan. 16 

Feb. 13. .....

Gage 

height

Feet 

2.45

3.90

4.29

4.36

Discharge

Sec.-ft. 

1,650

3,090

3,500

Date

Mar. 17.........

May 18.........

Gage 

height

Feet 

3.85

5.24

6.55

4.59

Discharge

Sec.-ft. 

2,970

4,700

7,490

3,830

Date

July 29 .........

Gage 

height

Feet 3.99

2.87

Discharge

Sec.-ft. 

3,370

1,920

1 Eeferred to gage 1H miles above present site and set to different datum.
PUYALLUP RIVER BASIN 39

Daily discharge, in second-feet, of Puyallup River at Puyallup, Wash., for the year 

ending September SO, 1925

Day

1 _______

2

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

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

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

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

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

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

9... _ ........

10.. _ ......

11 __ .. __ ...

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

13..... _ ......

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

15....... __ ..

16.......... __

17 __ ..........

18. _ ..........

19... _ .. __ ..

20 ___ .........

21.. ___ ......

22....... _ ....

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

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

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

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

27 __ ..........

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

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

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

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

Oct.

1,690

1,890

1,890

1,570

1,410

1,510

1,510

1,510

1,510

1,460

1,410

1,320

1,460

1,510

1,570

1,460

1,410

1,360

1,250

1,410

1,460

1,460

1,360

1,510

2,440

2,030

2,030

1,960

1,890 

2,110

2,030

Nov.

1,890

1,820

2,110

2,440

2,350

2,190

2,190

2,350

1,960

2,190

2,440

2,110

1,960

2,190

2,720

2,110

2,270

2,350

4,860

4,870

3,700

4,870

3,160

3,160

2,930

2,930

2,350

2,620

2,530 

2,190

Dec.

2,530

2 720

2,820

2,930

3,410

3,040

2,440

2,620

2,720

5,400

14,700

13,600

10,000

7,580

7,350

5,970

3,860

3,160

3,040

3,040

2,720

2,820

2,440

2,350

1,960

2,270

2,440

2,930

4,870 

5,310

3,860

Jan.

3,160

3,280

3,410

3,040

3,700

3,700

3,410

3,280

3,040

3,280

2,720

3,410

3,040

2,930

2,820

2,720

2,620

2,530

4,030

4,430

7,580

6,430

6,660

4,870

3,040

3,280

3,700

4,220

5,970 

8,530

8,770

Feb.

8,530

10,200

10,800

10,800

8,770

7,350

6,200

4,650

4,030

3,550

3,860

3,550

3,410

3,160

2,530

2,720

2,620

2,530

2,530

2,530

2,530

2,190

2,440

2,620

2,620

2,620

2,620

2,440

Mar.

2,110

2,440

2,620

2,530

2,530

2,530

2,350

1,960

2,350

2,350

2,350

2,350

2,190

2,270

1,890

2,350

2,720

2,530

2,620

3,280

2,930

2,530

2,930

3,280

3,700

2,930

3,040

3,040

2,350 

2,530

2,620

Apr.

2,530

2,530

2,440

2,350

2,350

2,350

2,440

2,350

2,530

3,700

6,200

5,970

6,890

5,310

4,650

5,090

5,530

4,870

4,650

4,430

4,030

3,410

3,160

3,040

2,930

2,440

2,530

2,440

2,440 

2,720

May

2,930

2,930

2,720

2,930

3,280

5,090

6,430

6,200

4,870

2,720

3,040

3,160

3,160

3,550

4,030

5,090

5,090

6,890

6,660

5,090

6,200

5,970

4,650

4,030

3,860

3,550

4,650

5,090

5,310 

3,550

2,110

June

2,530

2,530

2,350

2,350

2,270

2,190

2,270

2,440

2,620

2,720

2,620

2,620

2,930

2,930

2,820

3,040

3,280

3,280

3,410

3,700

4,650

5,090

4,220

3,700

3,700

4,030

3,860

3,860

3,410 

3,160

July

2,930

2,720

2,720

2,720

2,720

2,820

2,620

2,620

2,620

2,820

3,040

2,930

2,930

2,820

2,820

2,820

2,820

2,720

2,350

2,720

2,720

2,820

2,720

2,720

2,620

2,270

2,820

2,930

2,930 

2,820

3,040

Aug.

3,040

2,440

2,720

2,620

2,530

2,620

2,620

2,620

2,350

2,530

2,530

2,620

2,440

2,270

1,890

1,690

1,820

2,030

1,890

2,030

2,110

2,190

1,690

1,820

1,690

1,690

1,750

1,630

1,630 

1,570

1,690

Sept.

1,690

1,630

1,690

1,690

1,690

1,510

1,510

1,690

1,630

1,630

1,630

1,630

1,570

1,690

1,630

1,570

1,510

1,510

1,510

1,360

1,510

1,460

1,460

1,460

1,510

1,410

1,250

1,460

1,460 

1,410

Monthly discharge of Puyallup River at Puyallup, Wash., for the year ending

September SO, 1925

[Drainage area, 914 square miles]

Month

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

Discharge in second-feet

Maximum

2,440 

4,870 

14, 700 

8,770 

10,800 

3,700 

6,890 

6,890 

5,090 

3,040 

3,040 

1,690

14, 700

Minimum

1,250 

1,820 

1,960 

2,530 

2,190 

1,890 

2,350 

2,110 

2,190 

2,270 

1,570 

1,250

1,250

Mean

1,630 

2,660 

4,420 

4,120 

4,440 

2,590 

3,610 

4,350 

3,150 

2,760 

2,150 

1,550

3,110

Per 

square 

mile

3.40

Run-off

Inches

46.15

Acre-feet

100, 000 

158, 000 

272,000 

253, 000 

247,000 

159, 000 

215, 000 

267, 000 

187,000 

170,000 

132, 000 

92,200

2, 250, 000

NOTE. Monthly discharge in second-feet per square mile and run-off in inches not computed owing to 

regulation. Yearly figures closely represent natural flow.
40 SURFACE WATER SUPPLY, 1925, PART XII A 

WHITE E1VEK AT BUCKLEY, WASH.

LOCATION. River gage in SE. ^ sec. 34, T. 20 N., R. 6 E., at Northern Pacific 

Railway bridge; flume gage in sec. 35, T. 20 N., R. 6 E., on left side of 

White River, half a mile above Northern Pacific Railway crossing, both 

about a mile northeast of Buckley, Pierce County.

DRAINAGE AREA. 424 square miles (measured on Plate XI, Water-Supply 

Paper 313).

RECORDS AVAILABLE. April 22, 1899, to August, 1903 (gage-height record only 

January 1, 1902, to August 31, 1903); June 8 to December 31, 1911; January 

18, 1913, to September 30, 1925.

GAGE. Stevens eight-day water-stage recorder on left bank of river 40 feet below 

railway bridge at end of concrete wall protecting abutment of bridge, installed 

January 9, 1917; and Stevens long-distance recorder with transmitter at 

stilling well on right side of flume 800 feet below head gate and recorder in 

gate house, installed January 12, 1918. Recorders inspected by employees 

of Puget Sound Power & Light Co.

DISCHARGE MEASUREMENTS. Measurements of river made by wading or from 

railway bridge; measurements of flume made from footbridge 8 feet below 

flume gage.

CHANNEL AND CONTROL. River bed composed of small boulders and gravel; 

shifting. Gradient steep. One channel prior to flood of January 23, 1919; 

two channels after the flood. Right bank of main channel low and flat. 

Left bank protected by concrete wing wall. Various types of protection 

to undercrossing of city of Tacoma's municipal water supply have also been 

factors in control for this stream. Flume control formed by long section of 

flume bottom below gage. A rock spill a quarter of a mile below gage is 

partial control also. Stage-discharge relation affected by variable quantity 

of rocks which work their way from intake to rock spill.

EXTREMES OF DISCHARGE. Maximum combined daily discharge of river and 

flume, 6,060 second-feet December 11; minimum combined daily discharge, 

358 second-feet October 12.

1899-1901; 1911; and 1913-1925: Maximum combined daily discharge, 

18,100 second-feet December 18, 1917; minimum combined daily discharge, 

349 second-feet November 19, 1917.

ICE. Stage-discharge relation slightly affected by ice during severe winters.

DIVERSIONS. White River flume diverts water from river one-half mile above 

gage. Combined discharge is computed from separate determinations of 

flow of river and flume.

ACCURACY. River and flume rated separately. Stage-discharge relation of 

both river and flume changed continuously throughout year. Standard 

form of rating curves fairly well defined, and changes in control indicated 

by frequent discharge measurements have been assumed to yield curves 

parallel to standard forms. Operation of water-stage recorders satisfactory. 

Daily discharge determined by combining results obtained for river and 

for flume by using shifting-control method. Records good.

COOPERATION. Complete records furnished by Puget Sound Power & Light Co.
PUYALLUP RIVEE BASIN 41

Discharge measurements of White River and White River flume at Buckley, Wash., 

during the year ending September 80, 1925

Date

Oct. 10- 

Oct. 27- 

Jan. 31 

Feb. 25 

Feb. 26 

Mar. 26 

Apr. 2...........

White River

Gage 

height

Fed 

621.00 

621. 40 

621. 50 

621. 70 

621. 86 

621. 52 

621.54 

625. 70

621. 37 

621.22 

621. 38

Discharge

Sec.-ft. 

21.6 

70.0 

51.7 

87.7 

100 

86.9 

89.2 

2,830

28.7 

24.4 

33.6

White River 

flume

Gage 

height

Feet 

1.87 

3.72 

3.19 

4.38 

5.44 

5.20 

5.52

3.98

3.52

3.72

Discharge

Sec.-ft. 

378 

934 

780 

1,150 

1,440 

1,340 

1,480

980

846

956

Date

Apr. 25 

Apr. 27 

May 12 

May 25.. 

June 10 

July 23... 

Aug. 19. .. 

Sept. 5 . -. __

Sept. 25 .-.

White River

Gage 

height

Feet 

621. 46

621. 83 

623. 48 

624.26 

622. 44 

621. 36 

623. 57 

621. 20 

621. 13 

621. 10 

621.08

Discharge

Sec.-ft. 

72.6

146 

783 

1,380 

316 

67.9 

855 

57.6 

38.0 

34.5 

31.3

White River 

flume

Gage 

height

Feet 

5.70 

3.44

5.32 

4.04 

4.27 

4.06 

4.43 

3.50 

2.94 

2.68 

2.22

Discharge

Sec.-ft. 

1,660 

886

1,510 

1,160 

1,150 

1,210 

1,300 

950 

760 

647 

496

Combined daily discharge, in second-feet, of White River and White River flume at 

Buckley, Wash., for the year ending September 30, 1925

Day

1 ____ . __

2 

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

4.. ...

5 .......

6 .

7 ... ....

8-.. .. .

9 . .

10 

11 ____ -.-.-.

12 .

13 

14 

15 

16- ___ .

17 

18 _ . ...

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

20 _ . ._ ..

21 

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

23 

24 .... _ ...

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

26- _ 

27 ___ -

28 

29 ___ ..

30 . ___ ....

31 ..

Oct.

589

600

604

481

420

392

378

392

420

392

361

358

406

436

524

458

414

386

372

372

372

373

372

551

1,860

1,120

851

758

781

683

Nov.

618

1,040

997

1,180

1,020

848

828

844

808

381

407

644

578

759

1,280

1,150

1,080

994

2,820

3,580

2,540

3,010

2,420

1,980

1,630

1,300

1,240

993

952

956

Dec.

944

1,040

968

1,120

1,200

1,010

887

807

760

3,300

6,060

5,600

5,240

4,370

3,550

2,590

2,210

1,860

1,730

1,540

1,450

1,660

1,690

1,410

1,290

1,130

1,030

1,340

2,110

2,330

2,050

Jan.

1, 850

1,690

1,540

1,410

1,700

1,600

1,350

1,220

1,140

1,480

1,160

1,200

1,060

989

900

830

796

1,260

2,080

2,600

2,880

2,280

3,160

2,050

1,840

1,480

1,390

1,410

2,310

3,090

3,640

Feb.

3,480

4,400

4,440

4,200

3,410

2,720

2,430

2,060

1,710

1,440

1,240

1,320

1,200

1,080

1,020

994

909

880

854

859

857

873

958

990

989

1,020

1,020

950

Mar.

917

1,060

1,130

1,130

1,100

1,020

954

920

880

837

803

784

784

751

802

872

976

855

1,080

1,770

1,510

1,770

1,760

1,280

1,410

1,610

1,410

1,210

1,170

1,100

1,040

Apr.

1,040

999

959

987

987

1,020

1,060

1,210

1,790

655

3,020

3,430

3,280

2,730

2,440

2,700

2,770

2,590

2,380

2,170

1,930

1,650

1,610

1,510

1,430

1,320

1,290

1,280

1,230

1,390

May

1,450

1,500

1,530

1,390

1,880

2,400

3,090

2,630

2,300

2,180

2,190

2,260

2,350

2,700

2,970

3,380

3,080

3,640

3,500

3,750

4,120

3,570

2,990

2,750

2,310

2,230

2,400

2,470

2,990

2,110

1,700

June

1,570

1,520

1,420

1,310

1,270

1,270

1,280

1,320

1,930

1,410

1,360

1,410

1,610

1,960

1,470

1,680

1,810

1,870

1,880

1,820

2,480

2,550

2,160

1,940

2,070

2,250

2,120

2,090

1,660

1,460

July

1,320

1,180

1,210

1,260

1,270

1,240

1,250

1,250

1,250

1,310

1,370

1,530

1,190

1,150

1,120

1,150

1,190

1,050

1,020

1,210

1,140

1,280

1,280

1,280

1,200

1,170

1,280

1,270

1,050

976

1,080

Aug.

1,080

970

969

901

933

934

967

1,000

1,040

966

930

931

896

827

727

710

694

759

825

895

930

862

678

621

579

693

661

580

564

563

628

Sept.

645

565

629

630

596

597

597

662

628

644

612

595

580

580

520

473

457

518

532

486

471

456

487

518

517

486

499

424

409

420
42 SURFACE WATER SUPPLY, 1925, PART XII A

Combined monthly discharge of White River and White River flume at Buckley, 

Wash., for the year ending September 80, 1925

[Drainage area, 424 square miles]

Month

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

July....... -.-.-. _.._ ._.

The year ___________ .. ........

Discharge in second-feet

Maximum

1,860 

3,580 

6,060 

3,640 

4,440 

1,770 

3,430 

4,120 

2,550 

1,530 

1,080 

662

6,060

Minimum

358 

381 

760 

796 

854 

751 

655 

1,390 

1,270 

976 

563 

409

358

Mean

562 

1,300 

2,070 

1,720 

1,730 

1,120 

1,760 

2,570 

1,730 

1,210 

817 

541

1,430

Per 

square 

mile

1.33 

3.07 

4.88 

4.06 

4.08 

2.64 

4.15 

6.06 

4.08 

2.85 

1.93 

1.28

3.37

Eun-ofl

Inches

1.53 

3.42 

5.63 

4.68 

4.25 

3.04 

4.63 

6.99 

4.55 

3.29 

2.22 

1.43

45.66

Acre-feet

34,600 

77, 400 

127,000 

106,000 

96,100 

68, 900 

105,000 

158,000 

103,000 

74,400 

50,200 

32,200

1, 030, 000

LAKE WASHINGTON BASIN 

CEDAR RIVER AT CEDAR FALLS, WASH.

LOCATION. In sec. 4, T. 22 N., R. 8 E., below Seattle municipal power plant 

sst Cedar Falls, King County, and 3^ miles above Taylor Creek.

DRAINAGE AREA. 83 square miles (measured on topographic maps).

RECORDS AVAILABLE. April 9, 1914, to September 30, 1925.

GAGE. Stevens continuous water-stage recorder on right bank, 0.7 mile below 

power plant; installed April 8, 1914; inspected by E. C. and F. H. Hoffstrom.

DISCHARGE MEASUREMENTS. Made from cable 90 feet below gage or by wading.

CHANNEL AND CONTROL. Bed composed of small boulders and gravel. Shifts 

at extremely high water. Banks high; one channel at all stages.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, from waterstage recorder, 7.61 feet at 10 p. m. February 7 (discharge, 1,880 second-feet); 

minimum stage recorded, 3.86 feet from 6.30 to 11 p. m. August 8 (discharge, 

4.3 second-feet).

1914-1925: Maximum stage recorded, 11.4 feet at 9 a. m. December 19, 

1917 (discharge, 6,290 second-feet); no flow at 4 p. m. November 25, 1917, 

and August 18, 1923.

ICE. Stage-discharge relation not affected by ice.

DIVERSIONS. Seattle municipal power plant diverts water direct from Cedar 

Lake through a pressure pipe and returns it to the river at the plant above 

the gage. Practically the entire flow at low water is carried through the 

plant.

REGULATION. Flow partly controlled by storage and release of water in Cedar 

Lake Reservoir to accommodate requirements of Seattle municipal power 

plant.

ACCURACY. Stage-discharge relation changed October 21 to December 3, December 17, and February 3-12. Rating curves well defined, shiftingcontrol method used October 21 to December 3 and February 3-12. Operation of water-stage recorder excellent except as noted in footnote to table 

of daily discharge. Daily discharge ascertained by use of discharge integrator. Records excellent.
LAKE WASHINGTON BASIN 43

Discharge measurements of Cedar River at Cedar Falls, Wash., during the year 

ending September 80, 1925

Date

Oct. 1 __ ......

Oct. 20.. ..

Dec. 3..........

Dec. 5.... ...

Gage 

height

Feet 

4.88

4.68

5.30

5.57

Discharge

Sec.-ft. 

160

100

290

4.O7

Date

Feb. 5..........

Mar. 10... ...

Mar. 12.........

height

Feet 

6.00

7.05

5.24

5.02

Discharge

Sec.-ft. 

667

1,450

283

Date

July 2.. ........

Aug. 7- 

3&

Feet 

4.88

4.55

4.15

Discharge

Sec.-ft. 

154

74.9

18.5

28.0

Daily discharge, in second-feet, of Cedar River at Cedar Falls, Wash., for the year 

ending September SO, 1925

Day

1.. __ .... _ .

2. __ .... __ .

3 ___ ........

4...-. _ . _ ..

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

6

7 _ ........ ...

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

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

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

11....... _ ....

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

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

14... _ ... _ ..

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

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

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

18 . 

19

20- ...

21. ___ .. ......

22 __ .......

23 ___ ......

24..... _ . _ ..

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

26 ....... ...

27... _ ... .....

28. ____ . ....

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

30 __ . _ . .....

31 ... _ ...

Oct.

179

248

102

70

QS

154

179

156

139

150

200

178

181

210

222

151

145

180

102

106

132

168

132

134

154

90

97

122

135

128

130

Nov.

112

92

166

170

174

129

179

182

130

173

177

173

150

156

122

66

127

143

118

117

166

130

170

189

160

216

204

304

306

258

Dec.

295

283

242

276

346

308

172

251

230

250

313

324

274

243

391

533

644

596

562

560

331

316

366

358

338

376

296

317

308

313

305

Jan.

309

358

357

370

380

384

4ftfi

436

480

485

460

468

472

412

408

400

386

314

403

430

438

424

389

405

380

378

375

402

436

450

527

Feb.

422

579

921

1,140

1,130

964

1,020

1,510

1,200

1,020

835

624

430

365

355

397

340

379

341

449

390

330

335

324

360

314

316

295

Mar.

378

365

331

332

312

305

330

290

308

288

206

207

214

208

208

220

217

222

213

206

219

198

205

208

212

192

183

180

188

180

124

Apr.

107

106

108

106

160

102

102

100

98

100

110

116

247

427

456

446

466

450

350

466

486

485

474

472

460

344

373

372

344

308

May

268

236

236

262

292

288

396

384

368

352

336

429

345

304

253

307

267

384

380

433

430

410

400

274

362

366

360

370

356

252

200

June

381

368

251

266

293

202

137

236

208

182

121

120

124

146

200

203

220

192

193

176

117

92

84

90

86

84

83

189

82

83

July

74

70

71

71

fiQ

67

an

106

85

60

57

105

83

124

72

48

48

48

84

47

46

45

44

52

59

45

48

58

58

52

43

Aug.

42

62

46

69

114

25

7

5

7

6

23

30

34

34

38

35

41

34

30

38

65

35

38

49

50

44

38

44

49

74

157

Sept.

28

38

34

32

54

29

22

28

32

32

32

48

275

90

71

104

130

166

164

76

182

72

62

78

140

144

130

159

203

120

NOTE. Water-stage recorder not operating Oct. 1. Intake partly clogged Aug. 6 and 7. Discharge 

estimated Oct. 1 from power-plant output by Seattle officials; Aug. 6 and 7 from partial graph and engineer's observations.

3223 29 4
44 SURFACE WATER SUPPLY, 1925, PART XII A

Monthly discharge of Cedar River at Cedar Falls, Wash., for the year ending September 30, 1925

[Drainage area, 83 square miles]

Month

October ____________________

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

September.. ________________

Discharge in second-feet

Maximum

248 

306 

644 

527 

1,510 

378 

486 

433 

381 

124 

157 

275

1,510

Minimum

70 

66 

172 

309 

295 

124 

98 

200 

82 

43 

5 

22

5

Mean

147 

165 

346 

410 

610 

240 

291 

332 

174 

65.1 

44.0 

92.5

241

Per

square 

mile

2.90

Kun-off

Inches

39.37

Acre-feet

9,040 

9,820 

21,300 

25,200 

33,900 

14,800 

17,300 

20,400 

10,400 

4,000 

2,710 

5,500

174,000

NOTE. Monthly discharge, in second-feet per square mile and run-off in inches, not computed owing 

to regulation. Yearly figures closely represent natural flow.

CEDAR RIVER NEAR IAWDSBERG, WASH.

LOCATION. In sec. 17, T. 22 N., R. 7 E., 1% miles above intake of Seattle watersupply system at Landsberg, King County, 3 miles northeast of Ravensdale, 

and 5 miles below Taylor Creek.

DRAINAGE ABBA. 135 square miles (measured on topographic maps).

RECORDS AVAILABLE. April 30, 1914, to September 30, 1925; July 25, 1895, to 

September 30, 1898, at Clifford Bridge, 2 miles below present gage; March 

24, 1901, to April 30, 1912, at intake of Seattle water-supply system, 1% 

miles below present gage. Early records not exactly comparable with those 

for present site because of small diffeience in drainage area.

GAGE. Stevens continuous water-stage recorder installed on right bank April 29, 

1914; inspected by T. S. Beals.

DISCHARGE MEASUREMENTS. Made from cable at gage or by wading.

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

formed by broad riffle about 1,200 feet below gage; shifts at extremely high 

water. Logs may lodge on riffle. One channel at all stages.

EXTREMES OP DISCHARGE. Maximum stage recorded during year, from waterstage recorder, 8.83 feet at 12.30 a. m. February 8 (discharge, 2,740 secondfeet); minimum stage, 4.33 feet at 11 p. m. September 7 and 11 a. m. September 20 (discharge, 218 second-feet).

1914 1925: Maximum stage from recorder, 13.55 feet at 10 p. m. December 29, 1917 (discharge, 7,500 second-feet); minimum stage, 4.35 feet at 1 

a. m. October 15, 1914 (discharge, 162 second-feet).

ICE. Stage-discharge relation not affected by ice.

DIVERSION. None above the station (see Cedar River at Cedar Falls, Wash.).

REGULATION. Flow partly controlled by storage and release of water in Cedar 

Lake Reservoir to accommodate requirements of Seattle municipal power 

plant.

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

between 200 and 7,000 second-feet. Operation of water-stage recorder satisfactory except as noted in footnote to table of daily discharge. Daily discharge ascertained by use of discharge integrator. Records excellent.

The following discharge measurements were made: 

October 21, 1924: Gage height, 4.47 feet; discharge, 252 second-feet. 

June 4, 1925: Gage height, 5.66 feet; discharge, 622 second-feet. 

August 6, 1925: Gage height, 4.57 feet; discharge, 270 second-feet.
LAKE WASHINGTON BASIN 45

Daily discharge, in second-feet, of Cedar River near Landsberg, Wash., for the year 

ending September 30, 1925

Day

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

2 _________

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

4... _ . ____

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

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

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

8....... _ ....

9......... _ ..

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

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

12. __ .........

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

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

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

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

17........... _

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

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

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

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

22....

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

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

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

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

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

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

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

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

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

Oct.

308

438

302

264

267

onn

004

332

316

364

OAA

348

403

419

337

OOQ

OCA

282

250

280

qin

OCO

QCJ.

550

AQQ

JOQ

442

> an

Nov.

400

374

404

482

488

427

476

510

484

A(tf\

480

422

460

472

421

423

458

650

600

566

CAD

544

528

504

517

W5

563

582

575

Dec.

562

562

534

573

674

cqo

492

532

W.A.

QO9.

1,100

QO9

772

1,030

1,040

1,060

976

926

693

627

668

653

632

636

612

708

810

840

850

Jan.

I 950

880

856

938

1,060

1,180

1,220

1,110 i idn

1,060

988

974

1 030

1,050

1,470

1,750

Feb.

1,580

1,680

o oin

2 ion

1 QQfl

1,830

O J.9n

2,050

1 Q9fl

1, 360

1,080

965

944

958

QftQ

SQS

865

QCft

892

QOQ

836

812

834

Q-1 f\

Qf\O

77Q

Mar.

850

838

845

800

VQ7

763

774

740

730

714

646

632

fi°.<l

650

668

660

658

fifin

662

648

fi?O

670

645

678

635

621

614

616

609

555

Apr.

536

527

523

520

557

C-IO

508

510

510

514

COO

568

626

803

844

859

878

890

838

906

906

Q1 1

902

888

863

752

772

760

725

700

May

662

660

666

c CO

fi7O

ft79

781

760

810

732

689

658

680

674

728

720

772

772

7iU

722

663

702

7H4

700

R84

627

606

June

688

662

640

617

619

548

492

529

532

514

465

477

478

508

509

534

501

490

488

457

435

412

400

391

390

386

456

382

382

July

386

°.74

372

Q71

368

°.fid

374

396

380

360

353

389

374

376

376

337

337

338

368

343

338

354

372

354

353

340

334

340

339

340

324

Aug.

321

331

322

330

376

326

274

268

266

263

272

292

296

296

291

288

289

280

277

276

307

282

290

288

290

297

280

281

273

295

380

Sept.

258

252

250

244

OK9.

94fi

231

225

230

oon

99Q

228

415

314

245

281

303

336

323

270

345

256

248

242

284

293

282

320

355

320

NOTE. Water-stage recorder not operating Oct. 29 to Nov. 1 and Dec. 31 to Jan. 15; discharge estimated 

from flow at Cedar Falls, records of near-by streams, and weather records.

Monthly discharge of Cedar River near Landsberg, Wash., for the year ending September 30, 1925

[Drainage area, 135 square miles]

Month

December _________________

January ___________________

February. __________________

April _ _______________ .......

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

The year ............................

Discharge in second-feet

Maximum

550 

650 

1,100 

1,750 

2,430 

850 

911 

826 

688 

396 

380 

415

2,430

Minimum

250 

374 

492

778 

555 

508 

606 

382 

324 

263 

225

225

Mean

357 

493 

747 

1,040

1,310 

688 

705 

709 

495 

359 

297 

277

619

Per 

square 

mile

4.59

Run-off

Inches

62.31

Acre-feet

22,000 

29,300 

45, 900 

64,000 

72,800 

42,300 

42,000 

43,600 

29,500 

22,100 

18,300 

16, 500

448,000

NOTE. Monthly discharge in second-feet per square mile and run-off in inches not computed owing to 

regulation. Yearly figures closely represent natural flow
46 SURFACE WATER SUPPLY, 1925, PART XII A

SNOHOMISH RIVER BASIN 

SOUTH FORK OFSKYKOMISH RIVER NEAR INDEX, WASH.

LOCATION. In NE. % sec. 29, T. 27 N., R. 10 E., 300 feet above Sunset Falls,

2 miles southeast of Index and mouth of North Fork, Snohomish County. 

DRAINAGE AHEA. 355 square miles (revised; measured on topographic maps). 

RECOBDS AVAILABLE. October 1, 1902, to September 30, 1905; April 26, 1911,

to September 30, 1925. 

GAGE. Inclined and vertical staff gage on right bank; installed April 19, 1914;

read by Mrs. George Bingham. 

DISCHARGE MEASUREMENTS. Made by wading. 

CHANNEL AND CONTROL. Sunset Falls, 300 feet below gage, forms solid rock

control. Stage-discharge relation changed by blasting at falls in July, 1914,

and by shifting of channel above falls during floods. 

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 14.0 feet on

December 11 (discharge, 19,200 second-feet); minimum stage recorded,

0.65 foot on September 30 (discharge, 271 second-feet).

1902-1905; 1911-1925: Maximum stage recorded, 22.6 feet at 9 a. m.

December 18, 1917 (discharge, 47,000 second-feet); minimum stage recorded,

0.54 foot September 30, 1915 (discharge, 262 second-feet). 

ICE. Stage-discharge relation slightly affected by ice during severe winters.

Discharge estimated from gage height and weather records. 

DIVERSIONS. None. 

REGULATION. None. 

ACCURACY. Stage-discharge relation permanent; not affected by ice. Rating

curve well defined below 16,000 second-feet. Staff gage read to hundredths

once daily. Daily discharge ascertained by applying daily gage height to

rating table. Records good.

The following discharge measurement was made:

September 7, 1925: Gage height, 1.14 feet; discharge, 412 second-feet.

Daily discharge, in second-feet, of South Fork of Skykomish River near Index, 

Wash., for the year ending September SO, 1925

Day

1 ___ 

z.... ..........

3 

4 

5 

6.. ___ . 

T. . ............

8 

9.... ... .

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

23 

24 

25 __ -.,--.. _

26 . 

27 

28 

29 

30 .... - 

31 

Oct.

4,540

2,960

3,700

2,210

1,580

1,320

1,140

1,140

1,140

990

940

1,140

1,380

1,880

1,580

1,320

1,140

990

890

843

798

753

753

4,410

5,060

4,170

4,540

3,370

3,160

2,570

Nov.

2,210

3,480

2,760

3,370

3,260

2,570

2,570

2,570

2,210

1,880

1,880

1,720

1,440

1,320

1,380

1,380

1,440

1,380

5,910

4,540

4,050

3,590

2,960

2,390

1,720

1,580

1,510

Dec.

1,440

1,440

1,440

1,440

1,440

1,380

1,200

1,140

19,200

12,200

8,720

9,690

5,760

2,860

2,570

2,390

9 9in

1,960

1,720

1,720

3,590

Jan.

3,370

2,480

2,040

3,160

2,390

2,040

1,650

0 (\AC\

1,720

1,650

1,090

3,700

3,370

3,160

4 410

9 Qfin

2,040

2 910

9 Qnn

4,050

8,170

12,200

Feb.

7,150

17, 700

14,600

6,990

5,760

4,540

4,800

4,800

1,880

1,510

1,440

1,260

1,200

1,200

1 79fl

1,800

2,480

9 3nn

2

0Qfl

2 

' 040

Mar.

1,880

2,040

2,210

2,390

2,120

1,800

1,580

1,380

1,200

1,040

1,200

1,320

1,140

1 eon

1,650

1 440

1,320

1,200

Apr.

1,200

1,320

1,580

1,580

1,880

1,880

4,050

4,670

6,670

4,670

5,060

4,170

2,760

2,480

2,210

9 fl4fl

1,880

1,800

1

0 on

2

0-in

May

3,370

3,060

2,960

4,050

5,910

6,990

4,800

4 540

4

KAn

6,210

6,670

9 4Qn

8,530

8,530

7 480

6 oon

3

non

4,410

4,050

3 q7fl

3,060

June

2,860

2,480

2,300

2,760

2 Qfin

3 q7n

2,860

3,480

3,160

3,480

4 050

3,810

4 050

4

KACI

3 7nn

3 Din

4,410

4,050

3,160

9 7ftO

2

qoA

July

2,210

2,570

2,300

2,210

1,880

1,720

1,880

1,440

1,320

1,260

1,040

940

cnn

fid.3

798

798

Aug.

753

673

673

633

633

633

633

594

KQA

CKG

KQA

K-IQ

483

483

AAQ

483

483

633

KQA

483

K-IQ

C-IQ

483

417

417

417

Sept.

417

OQ7

387

387

OKQ

359

387

417

417

007

387

qen

OKQ

qen

OAR

359

OKQ

346

qqq

346

qqq

qon

qon

qon

308

qno

qon

283

971
SNOHOMISH RIVER BASIN 47

Monthly discharge of South Fork of Skykomish River near Index, Wash., for the 

year ending September SO, 1925

[Drainage area, 355 square miles]

Month

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

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

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

Discharge in second-feet

Maximum

5,060 

5,910 

19,200 

12, 200 

17, 700 

2,390 

8,170 

9,490 

5,480 

2,570 

753 

417

19,200

Minimum

753 

1,320 

1,090 

1,040 

1,200 

1,040 

1,140 

2,960 

2,300 

798 

417 

271

271

Mean

2,120 

2,480 

4,040 

2,850 

3,740 

1,560 

3,210 

5,340 

3,450 

1,420 

558 

351

2,590

Per 

square 

mile

5.97 

6.99 

11.4 

8.03 

10.5 

4.39 

9.04 

15.0 

9.72 

4.00 

1.57 

.989

7.30

Run-off

Inches

6.88 

7.80 

13.14 

9.26 

10.93 

5.06 

10.09 

17.29 

10.84 

4.61 

1.81 

1.10

98.81

Acre-feet

130, 000 

148,000 

248,000 

175,000 

208,000 

95,900 

191,000 

328,000 

205, 000 

87,300 

34, 300 

20,900

1, 870, 000

01WEY CHEEK WEAK STABTUP, WASH.

LOCATION. In SE. H sec. 12, T. 28 N., R. 8 E., 1^ miles above Stickney Bridge, 

5 miles northeast of Startup, Snohomish County.

DRAINAGE AREA. 10 square miles (measured on topographic maps).

RECORDS AVAILABLE. October 1, 1922, to September 30, 1925.

GAGE. Stevens continuous water-stage recorder on left bank; installed April 20, 

1923; inspected by Dale Annis.

DISCHARGE MEASUREMENTS. Made from cable at gage or by wading.

CHANNEL AND CONTROL. Banks high; not subject to overflow. Channel 

straight for 300 feet below gage. Control is of boulders and solid rock outcroppings; may shift at high water.

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

recorder, 5.73 feet at 1.20 p. m. December 10 (discharge, 1,450 second-feet); 

minimum stage, 0.73 foot from 2 to 3 p. m. September 29 (discharge, 5.2 

second-feet).

1923-1925: Maximum stage recorded from water-stage recorder, 6.1 feet 

at 5 a. m. February 12, 1924 (discharge, 1,520 second-feet); minimum stage, 

that of September 29, 1925.

ICE. Stage-discharge relation seriously affected by ice during severe winters.

DIVERSIONS. None.

REGULATION. None.

ACCURACY. Stage-discharge relation permanent; not affected by ice. Rating 

curve well defined. Operation of water-stage recorder satisfactory except 

as noted in footnote to table of daily discharge. Daily discharge ascertained 

by applying to rating table mean daily gage height determined from gageheight graph by inspection or, for days of considerable variation in stage, by 

averaging results obtained by applying mean gage heights for shorter periods. 

Records excellent except for estimated periods.
48 SURFACE WATER SUPPLY, 1925, PART XII A

Discharge measurements of Olney Creek near Startup, Wash., during the year ending

September 30, 1925

Date

Dec. 8 .

Jan. 30 __ ......

Jan. 31..........

Gage 

height

Feet 

1.44

3.69

3.66

Discharge

Sec.-ft. 

43.3

567

564

Date

Feb. 4. 

May 26.. 

A

Feet 

2 62

1.45

.82

Discharge

Sec.-ft. 

231

43.6

7.26

Date

Aug. 13. .

Gage 

height

Feet 

0.86

.73

Discharge

Sec.-ft. 

9.40

4.94

Daily di, in second-feet, of Olney Creek near Startup, Wash., for the year 

ending September 30, 1925

Day

1 .....

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

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

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

5 .........

6 

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

8 ..-........

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

10 .........

11 ..... .

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

13........

14 

15........

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

17........

18........ _ ...

19.. ........

20. ......

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

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

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

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

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

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

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

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

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

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

31 ..........

Oct.

130

209

> 150

193

390

199

219

149

120

Nov.

98

132

122

178

212

127

154

120

96

79

77

62

52

160

170

127

120

142

261

142

240

198

160

QO

73

63

57

58

55

Dec.

49

75

62

78

on

64

53

42

60

680

509

741

622

310

140

94

72

62

51

40

38

36

or

33

31

[ 200

1

Jan.

120

87

> 115

87

1 220

427

584

Feb.

432

528

430

247

205

156

126

102

86

70

61

56

51

50

64

52

42

39

37

49

110

105

137

167

129

110

102

79

Mar.

69

199

132

140

79

64

KA

47

42

38

39

45

47

67

90

87

67

154

171

106

136

101

83

QC

76

62

68

57

52

48

Apr.

50

54

56

58

55

56

55

76

118

135

229

369

174

103

118

188

157

116

178

120

92

85

86

91

«Q

59

55

55

65

82

May

95

76

58

62

92

116

144

96

76

95

94

86

105

109

114

134

112

112

103

98

114

69

54

50

52

56

58

69

68

65

47

June

42

44

53

51

44

46

42

72

57

69

52

105

106

81

73

63

55

53

52

56

54

44

39

39

40

34

29

25

23

21

July

19

20

18

16

15

15

14

14

14

14

13

13

12

12

11

11

10

10

9.7

9.4

9.1

9.1

8.8

8.8

8.2

7.9

7.6

7.3

6.8

6.8

6.5

Aug.

6.5

6.5

6.5

6.5

6.5

6.2

6.2

6.2

6.2

6.0

6.0

6.0

7.0

9.1

8.2

6.8

6.5

6.0

6.0

6.0

5.8

30

44

18

12

39

23

16

12

10

9.4

Sept.

9.7

9.1

8.5

7.9

7.3

7.0

7.0

7.0

7.0

7. ft

8.5

7.3

7.0

6.8

6.8

7.6

9.4

8.2

8.2

7.9

7.3

7.0

6.5

6.2

6.0

5.8

5.8

5.5

5.5

5.8

NOTE. Gage-height record Oct. 1-25 lost in mail. Water-stage recorder not operating Dec. 18 to Jan. 28. 

Discharge determined Oct. 12, Dee. 22, 27, Jan. 11 and 25 from staff gage reading and Dec. 18-21 and 23-26 

by interpolation. Estimates of discharge made by comparison with records of Sultan River. Braced 

figures give mean discharge for periods indicated.

Monthly discharge of Olney Creek near Startup, Wash., for the year ending September 30, 1925

[Drainage area, 10 square miles]

Month

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

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

September __________________

Discharge in second-feet

Maximum

261 

741 

584 

528 

171 

369 

144 

106 

20 

44 

9.7

741

Minimum

52 

31

37 

38 

50 

47 

21 

6.5 

5.8 

5.5

5.5

Mean

157 

125 

169 

164 

136 

81.7 

107 

86.4 

52.1 

11.5 

11.3 

7.24

92.2

Per 

square 

mile

15.7 

12.5 

16.9 

16.4 

13.6 

8.17 

10.7 

8.64 

5.21 

1.15 

1.13 

.724

9.22

Run-off

Inches

18.10 

13.95 

19.48 

18.91 

14.16 

9.42 

11.94 

9.96 

5.81 

1.33 

1.30 

.81

125. 17

Acre-feet

9,650 

7,440 

10,40ft 

10,100 

7,550 

5,020 

6,370 

5,310 

3,100 

707 

695 

431

66,800
SNOHOMISH RIVER BASIN

SULTAff RIVER NEAR SULTAN, WASH.

LOCATION. In sec. 8, T. 28 N., R. 8 E., at Horseshoe Bend, 4^ miles north of 

Sultan and mouth of river, in Snohomish County.

DRAINAGE AREA. 88 square miles (measured on topographic maps).

RECORDS AVAILABLE. August 18, 1911, to September 30, 1925.

GAGE. Stevens continuous water-stage recorder on left bank one-fourth mile 

above Horseshoe Bend; inspected by Jesse Reese and N. S. Berridge.

DISCHARGE MEASUREMENTS. Made from cable at gage or by wading.

CHANNEL AND CONTROL. In canyon; control formed by large rocks, boulders, 

and heavy gravel; not likely to change except at extremely high stages.

EXTREMES OP DISCHARGE. Maximum stage recorded during year, from highwater mark in well, 13.0 feet on December 10 (discharge, 13,700 second-feet); 

minimum stage, 0.17 foot at midnight September 24 (discharge, 44 secondfeet).

1911-1925: Maximum stage recorded, from high-water mark in well, 18.5 

feet on December 12, 1921 (discharge, 24,600 second-feet); minimum discharge recorded that of September 24, 1925.

ICE. Stage-discharge relation seldom affected by ice.

DIVERSIONS. City of Everett diverts water above station for municipal use. 

(See results of discharge measurements of Everett water-supply conduit, 

p. 155).

REGULATION. None.

ACCURACY. Stage-discharge relation changed at high water December 13; not 

affected by ice. Rating curves well defined below 10,000 second-feet. Operation of water-stage recorder satisfactory except as noted in footnote to table 

of daily discharge. Daily discharge ascertained by applying to rating table 

mean daily gage height determined by inspection from recorder graph or, for 

days of considerable variation in stage, by averaging results obtained by 

applying mean gage heights for shorter intervals. Records excellent except 

for periods when recorder was not operating.

COOPERATION. Gage-height record furnished by city of Everett, Wash.

Discharge measurements of Sultan River near Sultan, Wash., during the year

ending September 30, 1925

Date

Dec. 9... ___

Dec. 12... 

Dec. 13 ____

Dee. 18.... .....

Gage 

height

Feet 

2.18

9.45

7.65

3.30

Discharge

Sec.-ft. 

360

7,220

4,210

752

Date

Feb. 1 ... _ .

Feb. 2..........

Feb. 3..........

Gage 

height

Feet 

2.96

8.85

9 71

Discharge

Sec.-ft. 

615

3,190

5,640

6,890

Date

May 27.. ......

Anf 14

Gage 

height

Feet 

3.45

.90

.20

Discharge

Sec.-ft. 

833

116

46.3
SURFACE WATER SUPPLY, 1925, PART XII A

Daily discharge, in second-feet, of Sultan River near Sultan, Wash., for the year

ending September 80, 1925

Day

1.. _ .........

2 _____ . ....

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

4. _ . _ . _ ..

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

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

7

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

9. ___ .......

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

11 

12 

13_ 

14. 

15. _ ..........

16.. ........

17 _ ...........

18 .......

10

20 . _ ....

21 _ ...........

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

23 .........

24 _ ...........

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

26. _ ...

27 ...

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

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

30 .........

31.. 

Oct.

4,160

3,190

2,320

1,160

723

526

460

640

476

384

1,000

1,060

702

526

429

356

309

276

262

267

2,510

4,250

2,640

2,660

1,720

1,790

1,780

1,230

Nov.

09*;

1,420

1,200

1,100

640

832

766

900

937

4,390

1,820

2,400

2,480

1, 650

1,150

681

509

526

Dec.

600

640

581

460

OQQ

417

4,970

5,910

5,950

4 *3A(\

3,390

4,090

1,660

1,050

788

640

526

460

399

339

311

299

OQK

278

1,510

2,180

1,510

Jan.

1 ^9fl

1,320

1,020

1.030

1,860

1,080

810

702

620

950

660

620

EOft

444

345

316

1,850

1,780

2,330

1,800

1,690

2,220

1,240

878

711

925

1,000

2

nnn

5, 350

4 7Qfl

Feb.

3,870

6,180

5,280

9 7&O

2,180

1,380

1,080

900

702

600

526

>IQO

476

V)R

476

414

367

384

930

1,050

1,340

1,480

1,120

1,000

Gen

702

Mar.

640

1,100

1,150

1,010

874

736

598

460

414

364

329

326

342

348

664

788

681

492

748

950

702

942

766

640

723

476

492

444

384

350

Apr.

356

370

429

492

509

544

544

765

1,370

1,680

1,930

2,530

1,200

1,290

1,940

1,760

1,230

1,290

975

788

723

670

620

560

5<V1

450

500

850

1,150

May

1,400

1,200

950

750

1,100

1,400

1,750

1,300

925

1.080

1,180

1,020

1,180

1,350

1,410

1,720

1,540

1,760

1,780

1,510

1,510

1,020

766

702

681

766

855

855

832

723

COO

June

526

492

492

460

429

450

420

750

620

590

550

780

1,000

800

600

800

750

702

766

832

975

878

723

744

878

723

562

460

460

July

362

384

476

460

399

319

285

290

339

384

384

345

290

269

262

265

276

254

213

202

198

196

189

184

175

173

175

181

176

166

161

Aug.

161

152

136

124

117

115

109

105

106

108

106

103

104

114

112

110

108

106

104

102

100

200

247

200

150

250

180

120

120

110

100

Sept.

100

98

95

92

90

88

85

82

80

78

75

72

70

68

65

62

60

58

55

52

50

48

45

47

45

45

50

48

46

NOTE. Water-stage recorder not operating Nov. 3-13, Mar. 4-7, Apr. 23 to May 8, June 6-17, and Aug. 

15 tp Sept. 22. Discharge estimated from recorded range of stage and by comparison with records of Deer 

Creek. Braced figures give estimated mean discharge for periods indicated.

Monthly discharge of Sultan River near Sultan, Wash., for the year ending September 30, 1925

Month

October ___________________________

January. __________________________

February.. _________________________

July. .......................... _ . .

Discharge in second-feet

Maximum

4,250 

4,390

5,950 

5,350 

6,180 

1,150 

2,530 

1,780 

1,000 

476 

250 

100

6,180

Minimum

262

278 

316 

345 

326 

356 

600 

420 

161 

100 

45

45

Mean

1,320 

1,210 

1,570 

1,400 

1,400 

629 

994 

1,150 

669 

272 

132 

66.5

899

Run-oft in 

acre-feet

81,200 

72,000 

96,500 

86,100 

77,800 

38,700 

59, 100 

70, 700 

39,800 

16,700 

8,120 

3,960

651, 000
SNOHOMISH RIVER BASIN 51

MIDDLE FORK OF SNOQUA1MIE RIVER NEAR NORTH BEND, WASH.

LOCATION. In NE. ^ SE. J4 sec. 10, T. 23 N., R. 8 E., 1 mile southeast of North 

Bend, King County, and 2% miles above junction with North Fork.

DRAINAGE AREA. 173 square miles (revised; measured on topographic maps).

RECORDS AVAILABLE. August 10, 1907, to February 29, 1908; August 25, 1908, 

to September 30, 1925.

GAGE. Stevens continuous water-stage recorder on left bank; installed August 7, 

1915; inspected by employees of Puget Sound Power & Light Co.

DISCHARGE MEASUREMENTS. Made by wading or from highway bridge 2J^ miles 

below station.

CHANNEL AND CONTROL. Bed composed of large boulders. Channel slightly 

curved above and below station. Control shifts at extremely high water. 

Right bank high; left bank low and heavily wooded. Stage of zero flow 

according to measurements made September 11, 1919, gage height 0.7 

foot.

EXTREMES OP DISCHARGE. Maximum stage recorded during year, from waterstage recorder, 9.02 feet at 5.40 p. m. December 11 (discharge, 10,600 secondfeet); minimum stage recorded, 1.33 feet from 6 to 8 p. m. September 30 

(discharge, 133 second-feet).

1907-1925: Maximum stage recorded, 12.2 feet at 10 a. m. December 18, 

1917 (discharge, 18,300 second-feet); discharge may have been greater during 

floods of November, 1909, and November, 1910; minimum discharge that of 

September 30, 1925.

ICE. Stage-discharge relation seldom affected by ice.

DIVERSIONS. None.

REGULATION. None.

ACCURACY. Stage-discharge relation changed November 20; not affected by ice. 

Rating curves fairly well defined. Operation of water-stage recorder satisfactory except as noted in footnote to table of daily discharge. Daily 

discharge ascertained by applying to rating table mean daily gage height 

determined from recorder graph by inspection or, for days of considerable 

variation in stage, by averaging results obtained by applying mean gage 

heights for shorter intervals. Record good.

COOPERATION. Discharge measurements and gage-height record furnished by 

Puget Sound Power & Light Co.

Discharge measurements of Middle Fork of Snoqualmie River near North Bend, 

Wash., during the year ending September SO, 1925

Date

Nov. m. .......

Feb. IS.........

Gage 

height

Feet 

3.25

2.56

Discharge

Sec.-ft. 

1,010

559

Date

Apr. 17.. ._

Apr. 30 

Gage 

height

Feet 

4.73

3.68

Discharge

Sec.-ft. 

2,580

1,380

Date

Sept. 24. _ ....

Gage 

height

Feet 

1.84

1.41

Discharge

Sec.-ft. 

283

149
52 SURFACE WATER SUPPLY, 1925, PART XII A

Daily discharge, in second-feet, of Middle Fork of Snoqualmie River near North 

Bend, Wash., for the year ending September SO, 1925

Day

1... __ ......

2 _____ . _ ..

3... _ ........

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

5 

6 

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

8 

9 

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

11.. _____ . ...

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

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

14. _ 

15 . 

16 

17 

18 

19 

20.. 

21 _____ ......

22....... 

23 

24 __ ..........

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

26 

27 

28 

29 

30 _

31 

Oct.

2,270

2,550

2,620

1,450

1,050

813

702

757

1,010

841

696

900

1,350

1,600

1,550

1,130

1,300

715

620

536

492

450

415

1,470

3,220

2,620

2,620

2,140

1,890

1,950

1,600

Nov.

1,170

1,720

1,600

2,080

1 950

1,500

1,400

1,550

1,400

1,170

1,220

1,130

915

1,010

1,400

1,260

1,260

1,170

4,000

2,760

2,270

2,320

1,910

1,490

1,260

1,030

879

802

844

872

Dec.

837

865

SAO

QOO

QQD

742

652

640

5,540

9

O1A

5,880

5,640

5,020

5,640

2,400

1,500

1,250

1,000

914

830

800

770

740

700

675

718

2,270

2,760

1,960

1,540

Jan.

I OQA

1,640

1,210

1 HAA

1 390

1,130

942

1,100

1 000 i Ann

960

920

880

840

800

1,500

2,340

2,400

2,270

1,740

2,610

1,690

1,000

1 260

1,390

2,760

4,360

4,990

Feb.

4,180

5,170

4 990

3,680

2,830

2,340

1,860

1,540

1 3fiA

1,050

QOQ

809

724

676

664

624

568

536

514

530

701

872

1,090

1,170

1,010

1,050

1,030

914

Mar.

1,090

1,170

1,090

Q49

809

706

658

602

498

487

481

KOC

624

634

558

754

1,300

986

1,170

1,090

921

816

730

688

629

585

546

Apr.

563

624

706

712

748

781

2,080

1 960

2,610

2 980

3,930

3,680

2,270

2,020

2,470

2,610

2,150

1,690

1,390

1,170

1,010

986

986

774

774

837

1,000

1,390

May

i Aon

1,640

1,340

1,340

1,910

2,830

3,280

2,140

1,740

1,800

2,080

2,400

2,760

2,520

3,360

3,360

3,200

3,130

2,830

2,080

1,540

1,490

1,490

1,540

1,740

1,690

1,640

1,300

1,170

June

1,030

1,010

970

QQO

914

Q*7O

QOQ

1,090

1,210

1,490

1,170

1,390

1,250

1,400

1,550

1,500

1,600

1,750

2,020

1,860

1,490

1,440

1,740

1,800

1,590

1,340

1,090

1,020

July

851

928

949

907

742

688

719

767

774

712

590

568

546

563

441

421

412

407

393

366

358

362

366

366

354

326

318

Aug.

3<Y7

294

971

254

251

254

254

9*1

248

OQQ

231

228

226

256

231

210

200

195

198

205

239

274

262

217

239

234

236

229

222

216

Sept.

209

195

189

189

1 75

177

217

207

ion

184

175

177

181

184

175

175

186

179

175

160

152

146

148

148

146

144

144

140

135

NOTE. Water-stage recorder not operating Dec. 17-19, 22-26, Jan. 10-18, Feb. 21, Apr. 18, June 13-20, 

and Aug. 29 to Sept. 5. Discharge for days of missing gage-height record estimated by comparison with 

records of North and South Forks of Snoqualmie River.

Monthly discharge of Middle Fork of Snoqualmie River near North Bend, Wash., 

for the year ending September SO, 1925

[Drainage area, 173 square miles]

Month

April... 

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

The year ............................

Discharge in second-feet

Maximum

3,220 

4,000 

9,210 

4,990 

5,170 

1,300 

3,930 

3,520 

2,020 

949 

315 

217

9,210

Minimum

415 

802 

596 

800 

514 

481 

546 

1,170 

893 

318 

195 

135

135

Mean

1,400 

1,510 

2,050 

1,640 

1,550 

771 

1,540 

2,150 

1,350 

576 

241 

173

1,250

Per 

square 

mile

8.09 

8.73 

11.8 

9.48 

8.96 

4.46 

8.90 

12.4 

7.80 

3.33 

1.39 

1.00

7.23

Run-off

Inches

9.33 

9.74 

13.60 

10.93 

9.33 

5.14 

9.93 

14.30 

8.70 

3.84 

1.59 

1.12

97.55

Acre-feet

86,100 

89,800 

126,000 

101, 000 

86,100 

47,400 

91, 600 

132, 000 

80,300 

35,400 

14,800 

10,300

901, 000
SNOHOMISH RIVEK BASIN

NORTH FORK OF SNOQUALMIE RIVER NEAR NORTH BEND, WASH.

LOCATION. In NE. J4 see. 26, T. 24 N., R. 8 E., at Gabriel ranch, 2 miles above 

mouth and 3J^ miles northeast of North Bend, King County.

DRAINAGE AREA. 105 square miles (revised; measured on topographic maps).

RECORDS AVAILABLE. July 4, 1907, to September 30, 1925.

GAGE. Friez water-stage recorder on right bank 200 yards southeast of ranch 

house; installed September 26, 1916; inspected by employees of Puget Sound 

Power & Light Co.

DISCHARGE MEASUREMENTS. Made by wading or from cable 200 yards above 

mouth.

CHANNEL AND CONTROL. Bed composed of boulders and gravel; shifting at 

extremely high stages. Left bank not subject to overflow; right bank fairly 

high, not subject to overflow except at extremely high stages. Stage of 

zero flow according to measurements made August 25, 1922, gage height 

0.0 ±0.3 foot.

EXTREMES OP DISCHARGE. Maximum stage recorded during year, from waterstage recorder, 8.71 feet at 8.15 p. m. December 10 (discharge, 6,830 secondfeet); minimum stage, 1.63 feet at midnight September 30 (discharge, 64 

second-feet).

1907-1925: Maximum stage determined by leveling to high-water mark, 

14.5 feet November 18, 1911 (discharge, 11,100 second-feet); water above 

gage November 18, 19, 23, 24, 29, and 30,1909, and stage may have exceeded 

that reached in 1911. Minimum discharge 56 second-feet September 26-28, 

1910, and September 16, 1924.

ICE. Stage-discharge relation not affected by ice.

DIVERSIONS. None.

REGULATION. None.

ACCURACY. Stage-discharge relation changed December 12. Rating curves 

fairly well defined. Operation of water-stage recorder satisfactory except as 

noted in footnote to table of daily discharge. Daily discharge ascertained 

by applying to rating table mean daily gage height determined from gageheight graph by inspection or, for days of considerable variation in stage, by 

averaging results obtained by applying mean gage heights for shorter intervals. Records good.

COOPERATION. Discharge measurements and gage-height record furnished by 

Puget Sound Power & Light Co.

Discharge measurements of North Fork of Snoqualmie River near North Bend, 

Wash., during the year ending September SO, 1925

Date

Apr. 14. ........ ...........

Apr. 29 - _.. .

Gage 

height

Feet 

4.29

3.49

Discharge

Sec.-ft. 

1,270

645

Date

Sept. 25 

Gage 

height

Feet 

1.83

1.67

Discharge

Sec.-ft. 

86

66
54 SURFACE WATER SUPPLY, 1925, PART XII A

Daily discharge, in second-feet, of North Fork of Snoqualmie River near North Bend, 

Wash., for the year ending September 80, 1925

Day

3 ________

2 _ .. ____ ..

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 

Oct.

1,780

1,430

1,530

896

634

491

390

390

502

445

372

500

750

1,000

700

600

500

400

356

312

280

263

253

864

1,430

1,700

1,800

1,380

1,200

1,170

960

Nov.

785

1,190

1,020

1,310

1,150

896

912

848

712

385

602

518

666

1,090

920

984

976

2,960

1,860

1,480

1,380

1,120

904

778

647

565

541

571

Dec.

541

571

553

571

614

508

445

403

412

3,650

4,290

3,280

3 n4.ft

2,200

3,640

1,530

1,020

868

717

531

497

463

429

395

361

327

1,080

2,140

1,580

1,230

Jan.

1,040

1,080

960

832

1,180

920

748

686

602

718

602

589

Kqe

480

430

398

OfM

1,060

1,530

1,530

1,430

1,150

1 640

1,080

840

79<;

856

872

1,750

3,400

3,900

Feb.

2,620

3,640

3,640

2,440

1,970

1,530

1,210

968

840

426

167

149

316

486

460

435

408

qon

398

547

647

864

816

712

686

634

K<;Q

Mar.

496

692

762

692

602

524

475

440

412

377

356

339

339

327

331

372

381

351

936

718

880

785

654

686

583

508

486

440

407

385

Apr.

381

394

416

455

465

496

491

628

1,180

1,580

1,800

2,380

2,020

1,380

1,270

1,700

1,700

1,220

1,110

920

762

686

748

608

535

513

541

654

848

May

992

1,080

848

800

1,120

1,580

1,700

1,180

992

1,010

1,160

1,030

1,210

1,380

1,380

1,640

1,530

1,530

1,480

1,430

1,380

968

74ft

706

686

778

748

755

589

518

June

486

465

491

465

440

455

435

513

602

770

614

872

1,380

960

864

880

762

699

706

740

824

748

608

595

666

660

595

486

394

385

July

331

324

347

347

312

261

242

238

242

238

268

216

196

183

176

167

160

151

145

140

136

133

128

127

125

118

114

112

107

103

99

Aug.

97

94

91

88

87

85

83

81

80

79

78

77

81

88

94

89

86

85

82

81

80

93

128

145

127

133

140

122

108

101

96

Sept.

92

88

85

82

86

88

88

92

85

83

79

79

78

76

73

74

80

85

78

79

79

73

71

69

67

66

66

6&

66

65

NOTE. Water-stage recorder not operating satisfactorily Oct. 12-18 and Dec. 18, 19, and 21-26. Discharge estimated by comparison with records of Middle and South Forks of Snoqualmie River and by 

interpolation.

Monthly discharge of North Fork of Snoqualmie River near North Bend, Wash., for 

the year ending September 80, 1925

[Drainage area, 105 square miles]

Month

March -....... ..................

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

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

September 

Discharge in second-feet

Maximum

1,800 

2,960 

4,290 

3,900 

3,640 

936 

2,380 

1,700 

1,380 

347 

145 

92

4,290

Minimum

253 

385 

327 

364 

149 

327 

381 

518 

385 

99 

77 

65

65

Mean

815 

958 

1,240 

1,090 

1,010 

522 

952 

1,080 

652 

193 

96.1 

77.9

723

Per 

square 

mile

7.76 

9.12 

11.8 

10.4 

9.62 

4.97 

9.07 

10.3 

6.21 

1.84 

.915 

.742

6.89

Run-off

Inches

8.95 

10.18 

13.60 

11.99 

10.02 

5.73 

10.12 

11.87 

6.93

a 12

1.05 

.83

93.39

Acre-feet

50, 100 

57,000 

76,200 

67,000 

56,100 

32,100 

56,600 

66,400 

38,800 

11,900 

5,910 

4,640

523,000
SNOHOMISH RIVER BASIN 55

SOUTH FORK OF SNOQUALMIE RIVER AT NORTH BEND, WASH.

LOCATION. In SE. 34 sec. 9, T. 23 N., R. 8 E., at Cooper ranch, half a mile south

of North Bend, King County, and 3)^ miles by river above mouth. 

DRAINAGE AREA. 84 square miles (measured on topographic maps). 

RECORDS AVAILABLE. July 21, 1907, to February 29, 1908, and June 26, 1908,

to September 30, 1925. 

GAGE. Friez water-stage recorder on left bank at Cooper ranch; installed

October 2, 1916; inspected by employees of Puget Sound Power & Light

Co. 

DISCHARGE MEASUREMENTS. Made by wading or from cable 150 feet below

CHANNEL AND CONTROL. Bed composed of gravel; shifting at extremely high

EXTREMES OP DISCHARGE. Maximum stage recorded during year, from water 

stage recorder, 9.31 feet at 12.30 a. m. December 12 (discharge, 4,540 

second-feet); minimum stage recorded, 1.24 feet on September 30 (discharge, 

73 second-feet).

1907-1925: Maximum stage recorded "Water over gage" November 3, 

4, 19, 23, and 29, 1909 (gage height and discharge not determined); minimum 

stage recorded, 0.70 foot October 10 and 11, 1908 (discharge, 68 second-feet).

ICE. Stage-discharge relation not affected by ice.

DIVERSIONS. None.

REGULATION. None.

ACCURACY. Stage-discharge relation practically permanent. Rating curve 

fairly well defined below 2,000 second-feet. Operation of water-stage 

recorder satisfactory except as noted in footnote to table of daily discharge. 

Daily discharge ascertained by applying to rating table mean daily gage 

height determined from recorder graph by inspection or, for days of considerable variation in stage, by averaging results obtained by applying 

mean gage heights for shorter intervals. Records good.

COOPERATION. Discharge measurements and gage-height record furnished by 

Puget Sound Power & Light Co.

Discharge measurements of South Fork of Snoqualmie River at North Bend, Wash., 

during the year ending September 80, 1926

Date

Nov. 25.........

Feb. 17. ___ ..

Apr. 26.........

Gage 

height

Feet 

3.24

3.40

3.12

Discharge

Sec.-ft. 

602

742

588

Date

Julys. ......

Gage 

height

Feet 

3.63

4.58

2.21

Discharge

Sec.-ft. 

787

1 220

282

Date Gage 

height

Feet 

1.61

1.28

Discharge

Sec.-ft. 

120

77

Daily discharge, in second-feet, of South Fork of Snoqualmie River at North Bend, 

Wash., for the year ending September 80, 1925

Day

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

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

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

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

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

7 __ ..........

8 ..... _ ...

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

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

Oct.

625

700

750

478

362

299

260

260

330

311

Nov.

530

630

695

830

762

650

630

650

610

530

Dec.

388

388

385

405

428

405

388

378

385

1.310

Jan.

785

830

808

762

942

920

852

830

785

875

Feb.

2,240

2,360

2,600

2,180

1,780

1,560

1,350

1,220

1,180

1.010

Mar.

672

740

785

762

718

672

630

610

550

Apr.

512

512

512

530

530

550

570

630

830

1.100

May

785

852

808

785

942

1,220

1,400

1,150

942

942

June

590

590

570

530

550

550

530

550

590

610

July

385

365

359

340

321

299

284

272

263

257

Aug.

119

119

115

113

112

111

109

108

106

105

Sept.

96

95

92

92

90

88

90

93

91

88
56 SURFACE WATER SUPPLY, 1925, PART XII A

Daily discharge, in second-feet, of South Fork of Snoqualmie River at North Bend, 

Wash., for the year ending September 30, 1925 Continued

Day

11 

12 

13 

14 . 

16 

17 

18 . 

19 

20.. . _ -

21 _ . ..........

22__. __ ... _ .

23 ..

24 ___ 

25 __ 

26 

27 

28 

29 

30 

31 

Oct.

269

272

395

428

369

308

272

252

240

234

226

226

311

875

762

762

718

610

695

610

Nov.

630

461

415

408

421

418

412

408

650

1,010

898

1,010

875

740

630

550

495

444

415

402

Dec.

3,720

3,150

2,420

1,500

1,200

850

718

672

630

570

530

512

512

590

830

920

830

Jan.

808

852

785

740

672

650

610

785

695

1,150

1,250

1,080

1,250

1,060

942

875

920

965

1 300

1,780

2,600

Feb.

942

898

830

785

762

740

695

672

650

650

672

718

785

830

808

808

785

740

Mar.

550

530

512

512

512

530

550

530

550

672

650

718

762

718

718

672

630

590

570

550

512

Apr.

1,300

1,500

1,450

1,200

1,030

1,080

1,180

1,060

965

875

785

718

695

650

610

590

570

590

630

740

May

1,030

988

1,060

1,180

1,220

1,400

1,400

1,300

1,300

1,300

1,180

966

808

762

740

740

785

785

762

672

630

June

570

610

695

650

630

672

650

630

610

610

650

610

530

512

530

530

512

478

428

412

July

249

237

223

212

204

198

193

196

201

190

182

172

163

154

156

161

152

145

137

130

124

Aug.

106

104

104

111

116

109

102

101

98

98

98

102

119

119

109

111

109

106

101

100

97

Sept.

86

85

82

81

82

84

84

82

82

84

81

80

78

77

77

76

76

76

74

73

NOTE. Water-stage recorder not operating satisfactorily Oct. 1-3 and Dec. 14-19; discharge estimated 

by comparison with records of North and Middle Forks of Snoqualmie River.

Monthly discharge of South Fork of Snoqualmie River at North Bend, Wash., for 

the year ending September 30, 1925

[Drainage area, 84 square milesj

Month

April.. ____________ .

July.- 

September.. ________________

Discharge in second-feet

Maximum

875 

1,010 

3,720 

2,600 

2,600 

785 

1,500 

1,400 

695 

385 

119 

96

3,720

Minimum

226 

402 

378 

610 

650 

512 

512 

630 

412 

124 

97 

73

73

Mean

441 

604 

995 

973 

1,120 

622 

816 

995 

573 

223 

108 

83.8

626

Per 

square 

mile

5.25 

7.19 

11.8 

11.6 

13.3 

7.40 

9.71 

11.8 

6.82 

2.65 

1.29 

.998

7.45

Run-off

Inches

6.05 

8.02 

13.60 

13.37 

13.85 

8.53 

10.83 

13.60 

7.61 

3.06 

1.49 

1.11

101. 12

Acre-feet

27,100 

35,900 

61,200 

59,800 

62,200 

38,200 

48, 600 

61, 200 

34, 100 

13, 700 

6,640 

4,990

454, 000

STILAGUAMISH RIVER BASIN 

DEER CREEK AT OSO, WASH.

LOCATION. In sec. 5, T. 32 N., R. 7 E., l^i miles above Oso and junction with 

North Fork of Stilaguamish River, Snohomish County.

DRAINAGE AREA. 84 square miles (measured on topographic maps).

RECORDS AVAILABLE. August 11, 1917, to September 30, 1925.

GAGE. Stevens continuous water-stage recorder on left bank about 250 feet 

below mouth of 3-mile canyon; inspected by F. L. Bloxham.

DISCHARGE MEASUREMENTS. Made by wading or from highway bridge at Oso.

CHANNEL AND CONTROL. Bed composed of boulders and gravel overlying bedrock. Banks high. One channel at all stages.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 9.50 feet at 

2.30 p. m. December 10 (discharge, 7,230 second-feet); minimum stage, 0.43 

foot from 6 p. m. to midnight September 30 (discharge, 24 second-feet).

1918-1925: Maximum stage from high-water mark in well, 11.7 feet December 12, 1921 (discharge, 10,400 second-feet); minimum stage that of September 30, 1925.
STILAGUAMISH RIVER BASIN 57

ICE. Stage-discharge relation affected by ice during severe winters.

DIVERSIONS. None.

REGULATION. None.

ACCURACY. Stage-discharge relation changed February 9 and 21, gradually 

February 21 to June 29 and on July 12 and 28; affected by ice December 

17-26. Rating curve used prior to first change well defined; that used February 9-21 and July 12-28 fairly well defined by evidence on recorder graph; that 

used June 30 to July 11 and July 29 to September 30 well defined. Shiftingcontrol method used February 21 to June 29. Operation of water-stage 

recorder satisfactory except as noted in footnote to table of daily discharge. 

Daily discharge ascertained by applying to rating table mean daily gage 

height determined by inspection from gage-height graph or, for days of considerable variation in stage, by averaging results obtained by applying mean 

gage heights for shorter intervals. Records October to January and June 

to September good; remaining records fair.

COOPERATION. Gage-height record furnished by Interurban Land Co.

Discharge measurerr' its of Deer Creek at Oso, Wash., during the year ending September 30, 1925

Date

Dec. 14 

Feb. 5 

Feb. 6 

Gage 

height

Feet 

4.57

4.96

4.15

Discharge

Sec.-ft. 

1,500

1,660

1,160

Date

June 29 .........

Gage 

height

Feet 

1.61

1.59

.61

Discharge

Sec.-ft. 

148

143

35.5

Date

Sept. 8.. .......

Gage 

height

Feet 

0.66

Discharge

See.-ft. 

32.0

Daily discharge, in second-feet, of Deer Creek at Oso, Wash., for the year ending

September 30, 1925

Day

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

2...-. .....

3...... .... ... -

4.-. . ......

5 

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

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

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

Q

10.. ___ .........

11 

12 .

13 

14 , 

15 ..

16 

17 

18 

19 

20 

21 

22 ..

23 

24. .........

25 .

26.... ....

27 

28.. .

29 

30 

31... ......

Oct.

2,050

2,330

1,120

527

341

250

284

486

464

282

219

1,380

1,050

1,130

633

410

308

248

212

181

162

148

143

1,240

2,620

1,460

1,220

795

2,020

1,840

1,100

Nov.

720

1,150

672

1,250

1,060

585

1,110

878

585

441

406

400

1,400

400

Dec.

344

589

509

565

585

491

41Q

335

4,150

3,680

4,820

2,720

2,740

2,600

850

730

620

500

430

370

300

280

270

250

212

1,280

1,930

1,210

822

Jan.

770

1,090

695

509

1,330

648

474

441

650

450

400

360

320

280

250

230

2,020

1,190

1,840

1,080

1,970

2,100

546

560

1,250

1,040

2,330

3,860

2,970

Feb.

2,820

3,270

3,380

1,590

1,630

1,190

1,070

720

622

313

252

257

208

163

138

110

87

73

64

86

1,280

1,340

1,510

1,340

932

1,040

1,230

672

Mar.

457

931

878

1,220

605

403

303

248

189

185

183

175

209

457

457

554

584

367

840

590

413

605

324

324

274

246

241

Apr.

239

239

274

335

379

410

397

588

1,070

1,310

1,440

1,630

1,020

648

687

1,370

1,470

822

988

822

605

491

425

382

316

274

260

298

457

626

May

1,160

932

626

605

960

1,340

1,550

988

720

878

960

795

988

1,100

1,130

1,340

1,220

1,310

1,250

1,160

960

585

457

425

441

474

565

1,000

768

605

457

June

391

355

338

319

313

324

287

400

370

338

280

428

509

376

400

403

355

341

327

347

376

332

264

255

282

270

241

187

150

147

July

127

124

126

122

112

105

96

88

86

86

84

81

76

81

77

70

66

62

60

58

57

57

56

53

51

50

48

44

42

41

40

Aug.

40

38

37

35

35

34

34

33

33

33

32

32

33

39

42

36

34

32

30

30

30

184

62

149

70

291

130

63

50

43

40

Sept.

4fl

52

41

38

35

34

33

33

32

32

33

32

30

30

29

32

32

33

38

33

30

29

28

27

27

27

26

26

26

25

NOTE. Water-stage recorder not operating satisfactorily Nov. 12-30, and intake clogged Jan. 11-17; 

discharge estimated by comparison with records of near-by streams. Braced figures give estimated mean 

discharge for periods indicated.
58 SURFACE WATER SUPPLY, 1925, PART XII A

Monthly discharge of Deer Creek at Oso Wash., for the year ending September 30,

1925

[Drainage area, 84 square miles]

Month

April . . 

July 

September- ______ . _ .. ___ ___

Discharge in second-feet

Maximum

2,620

4,820 

3,860 

3,380 

1,220 

1,630 

1,550 

509 

127 

291 

52

4,820

Minimum

143

212 

230 

64 

175 

239 

425 

147 

40 

30 

25

25

Mean

860 

782 

1,140 

1,060 

978 

443 

676 

895 

324 

75.0 

58.2 

32.1

609

Per 

square 

mile

10.2 

9.31 

13.6 

12.6 

11.6 

5.27 

8.05 

10.7 

3.86 

.893 

.693 

.382

7.25

Run-off

Inches

11.76 

10.39 

15.68 

14.53 

12.08 

6.08 

8.98 

12.34 

4.31 

1.03 

.80 

.43

98.41

Acre-feet

52,900 46,500- 

70,100 

65,200 

54,300 

27,200 

40,200 

55,000 

19,300 

4,610 

3,580 

1,910

441, 000

SKAGIT RIVER BASIN 

SKAGIT RIVER BELOW RUBY CREEK, NEAR MARBIEMOUWT, WASH.

LOCATION. In Whatcom County, three-fourths of a mile below Ruby Creek, 5 

miles above Reflector Bar, and 23 miles northeast of Marblemount, Skagit 

County.

DRAINAGE AREA. 978 square miles. Area in United States, 588 square miles 

measured on Washington National Forest map, edition 1922; area in British 

Columbia, 390 square miles.4

RECORDS AVAILABLE. June 1, 1919, to September 30, 1925.

GAGE. Stevens continuous water-stage recorder on right bank; installed June 

9, 1919; inspected by F. E. Davis.

DISCHARGE MEASUREMENTS. Made from cable 40 feet below gage.

CHANNEL AND CONTROL. Control at head of rapids about 125 feet below gage 

composed of large, angular boulders and perhaps some bedrock. Banks 

high and wooded, not subject to overflow. One channel at all stages.

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

recorder, 11.6 feet from 11 p. m. May 19 to 1 a. m. May 20 (discharge, 

23,200 second-feet); minimum stage from recorder, 3.49 feet at midnight 

September 30 (discharge, 674 second-feet).

1919-1925: Maximum stage recorded, 16.1 feet at 7 p. m. December 12, 

1921 (discharge, 45,700 second-feet); minimum stage, 3.30 feet at 10 p. m. 

November 11, 1919 (discharge, 555 second-feet).

ICE. Stage-discharge relation slightly affected by ice during severe winters. 

Flow estimated from observer's notes and weather records.

DIVERSIONS. None.

RE GULATION . None.

ACCURACY. Stage-discharge relation permanent; affected by ice December 17 

to January 1. Rating curve well defined below 20,000 second-feet. Operation of water-stage recorder satisfactory. Daily discharge ascertained by 

applying to rating table mean daily gage height determined from recorder 

graph by inspection or, for days when there was considerable variation in 

stage, by averaging results obtained by applying to rating table mean gage 

heights for shorter intervals. Records excellent.

The following discharge measurements were made: 

June 3, 1925: Gage height, 7.44 feet; discharge, 6,670 second-feet. 

August 1, 1925: Gage height, 5.62 feet; discharge, 3,020 second-feet. 

September 15, 1925: Gage height, 4.07 feet; discharge, 1,130 second-feet.

* White, A. V., Water powers of British Columbia, p. 483, Commission of Conservation, Canada, 1919.
SKAGIT RIVER BASIN 59

Daily discharge, in second-feet, of Skagit River below Ruby Creek, near Marblemount, Wash., for the year ending September 80, 1925

Day

1 _ ....

2 ...... -

3_ ... ..

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

5 

6-.... _ ...

7.. ...... 

8 ....

9 __

10 

11 

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

13 

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

15 

16 .. _ ...

17 .. _

18 

19. .

20 

21

22 __

23 

24 

25 

26 

27 

28 

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

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

31 ___ . ___

Oct.

2,160

2,030

2 nQn

1,680

1,470

1,320

1,270

1,220

1,180

1,080

1,040

1,040

1,040

1,270

1,520

1,420

1,320

1,180

1,130

1,130

1,080

1,040

1,040

2,800

6,840

5,120

4,430

3,710

3,220

2,700

Nov.

2,420

2,630

o vnn

2,630

2,420

2,160

2,090

1,970

1,910

1,740

1,680

1,520

1,470

1,420

1,420

1,370

1,370

1,420

2,490

2,840

2,770

2,560

2,350

2,160

1,970

1,850

1,800

1,740

1,740

Dec.

1,740

1,740

i 7<m

1,740

1.S80

1,630

1,580

1,420

1,800

4,440

14 fiOfi

16,200

15, 300

13,000

9,100

6,800

5,800

4,900

4,300

3,800

3,400

3,100

2,800

2,600

2,600

9 4fifi

2,400

2,200

2,000

1,600

Jan.

1,900

1,910

1,850

1,800

1 680 lieso

1,520

1,520

1,420

1,420

1,370

1,320

1,270

1,220

1,420

1,520

1,630

1,680

1,680

2,160

2,090

1,910

1,800

1,740

1,630

1,580

1,910

2,350

Feb.

2,770

5,440

6,000

5,020

4,240

3,710

3,220

2,920

2,630

2,420

2,090

1,970

1,910

1,800

1,740

1,630

1,580

1,520

1,580

1,630

1,740

1,800

1,850

1,850

1,850

Mar.

1,800

2,090

2,280

2,350

2,220

2,090

2,030

1,910

1,850

1,740

1,680

1,630

1,580

1,520

1,520

1,470

1,420

1,370

1,420

1,470

1,630

1,740

1,740

1,850

1,850

1 800

1,740

1,630

Apr.

1,630

1,630

1,850

2,160

2,420

2,920

3,380

4,060

5,230

7,100

8,500

o inn

8,500

7,100

6,360

6,360

6,840

6,600

5,880 *; <wn

4,920

4,620

4,340

3,800

3,620

3,540

3,620

4,060 A con

May

5,120

5,120

5,020

5,120

5,880

8,200

11,400

10 000

8,800

9,100

10,400

11, 100

12,200

13,500

15,300

17,700

18, 700

20,700

22,200

21,200

19,200

16,200

13,500

11, 400

10, 800

10,800

11,100

11,400

11, 100

9 inn

7,900

June

7,100

6,840

6,360

6,000

5,880

6,360

6,600

7,360

7,900

8,200

7,620

7,620

7,100

8,200

10,000

10 000

9^700

9,700

10,400

11,800

12,200

11,100

9,700

10, 800

11,400

11, 100

9,400

7,900

7 ^fifl

July

6,600

6,360

6,360

6,360

6,000

5,550

4,920

4,620

4,920

5,340

5,440

5,020

4,620

4,620

4,340

4,240

4,340

3,880

3,540

3,460

3,380

3,460

3,300

3,220

3,140

3,140

3,220

3,300

3,140

3,000

3,070

Aug.

3,070

2,920

2,630

2,350

2,350

2,350

2,350

2,350

2,420

2,350

2,280

2,220

2,090

1,850

1,630

1,470

1,470

1,520

1,580

1,740

1,800

2,220

1,680

1,420

1,320

1,580

1,520

1,270

1,220

1,220

1,270

Sept.

1,270

1,220

1,270

1,320

1,270

1,220

1,220

1,270

1,270

1,220

1,180

1,130

1,180

1,180

1,130

1,040

960

1,000

920

845

845

880

1,000

1,000

960

880

810

740

710

680

Monthly discharge of Skagit River below Ruby Creek, near Marblemount, Wash., 

for the year ending September 30, 1925

[Drainage area, 978 square miles]

Month

April _ ____________________

July. __ 

Discharge in second-feet

Maximum

6,840 

2,920 

16,200 

2,350 

6,600 

2,350 

9,100 

22,200 

12,200 

6,600 

3,070 

1,320

22,200

Minimum

1,040 

1,370 

1,420 

1,220 

1,520 

1,370 

1,630 

5,020 

5,880 

3,000 

1,220 

680

680

Mean

2,020 

2,050 

4,500 

1,660 

2,700 

1,750 

4,810 

11,900 

8,640 

4,380 

1,920 

1,050

3,960

Per 

square 

mile

2.07 

2.10 

4.60 

1.70 

2.76 

1.79 

4.92 

12.2 

8.83 

4.48 

1.96 

1.07

4.05

Run-off

Inches

2.39 

2.34 

5.30 

1.96 

2.87 

2.06 

5.49 

14.07 

9.85 

5.16 

2.26 

1.19

54.94

Acre-feet

124,000 

122,000 

277,000 

102,000 

150,000 

108,000 

286,000 

732,000 

514,000 

269,000 

118,000 

62,500

2, 860, 000

3223 2<
60 SURFACE WATER SUPPLY, 1925, PART XII A

SKAGIT RIVER NEAR MARBLEMOTTNT, WASH.

LOCATION. In SE. 3^ sec. 21, T. 37 N., R. 12 E., at city of Seattle power camp, 

Whatcom County, one-fourth mile above Newhalem Creek, 6J^ miles below 

Stetattle Creek, and 16 miles above Marblemount.

DRAINAGE AREA. 1,160 square miles. Area in Canada, 390 square miles; 5 area 

in United States 770 square miles, measured on Washington National 

Forest maps.

BECORDS AVAILABLE. December 21, 1908, to May 23, 1914; October 1, 1920, to 

September 30, 1925.

GAGE. Stevens water-stage recorder installed June 5, 1923, on right bank 

about 300 feet below suspension footbridge and trail to Newhalem Creek 

power plant; inspected by F. E. Davis. Present gage datum 400 feet United 

States Geological Survey datum.

DISCHARGE MEASUREMENTS. Made from suspension bridge or from cable at gage.

CHANNEL AND CONTROL. Right bank high, is not overflowed; left bank gently 

sloping and wooded, will be overflowed at extremely high stage. Channel 

straight for several hundred feet above and for long distance below gage. 

Control is gravel and boulder riffle; will shift at high stages.

EXTREMES OP DISCHARGE. Maximum stage recorded during year, from waterstage recorder, 89.65 feet from 1 to 3 a. m. May 20 (discharge, 25,400 secondfeet); minimum stage from recorder, 80.10 feet at 2.10 a. m. September 20 

and 11.45 p. m. September 30 (discharge, 655 second-feet).

1908-1914; 1920-1925: Maximum stage recorded, 94.2 feet at 8 p. m. 

December 12, 1921 (discharge, 60,000 second-feet); minimum stage, that of 

September 20 and 30, 1925.

ICE. Stage-discharge relation seriously affected by ice during severe winters.

DIVERSIONS. Seattle municipal power plant diverts water directly from river 

about 3 miles by river above gage, through a pressure tunnel, and returns 

it to the river at the plant just above gage. The entire low-water flow may 

be carried through the plant.

REGULATION. Daily flow partly controlled at very low wa.ter by storage and 

release of water at tunnel intake to accommodate requirements of power 

plant.

ACCUEACY. Stage-discharge relation changed December 12 and February 2; 

not affected by ice. Rating curves well defined. Operation of water-stage 

recorder satisfactory except as noted in footnote to table of daily discharge. 

Discharge determined by use of discharge integrator except for high water, 

when daily discharge was ascertained by applying to rating table mean 

daily gage height determined from recorder graph by inspection or, for 

days of considerable variation in stage, by averaging results obtained by 

applying mean gage heights for shorter intervals. Records excellent.

Discharge measurements of Skagit River near Marblemount, Wash., during the year 

ending September 30, 1925

Date

Jan. IS---.... .

Jan. 19--.- .

Feb. 8 .- . 

Gage 

height

Feet 

81.71

81.27

81.83

83.37

Discharge

8ec.-ft. 

2,010

1,600

2,140

4,020

Date

July 30- -

Aug. 2... .......

Gage 

height

Feet 

85.44

84.80

83.62

83.49

Discharge

Sec.-ft. 

8,780

7,200

4,700

4,360

Date

Sept. 13 .... ...

Sept. 16--- ..

Gage 

height

Feet

81.75

81.22

Discharge

Sec.-ft.

1,480

'White, A. V., Water powers of British Columbia, p. 483, Commission of Observation, Canada, 1919.
SKAGIT RIVER BASIN 61

Daily discharge, in second-feet, of Skagit River near Marblemount, Wash., for the 

year ending September 80, 1925

Day

1 ......

2.. ..

3.........

4......

5-. ----_-.

6.........

7.........

8. .....

9.........

10.........

11 ......

12.........

13......

14........

15.........

16.........

17.........

18.........

19........

20.........

21.. _

22.. ___

23..... _ .

24.......

25.........

26.........

27.........

28.........

29.........

30.........

31.........

Oct.

3,740

3,410

2,420

1,970

1,730

1,640

1,590

1,540

1,350

1,340

1,320

1,360

1,740

2,080

1,980

1,720

1, 560

1,480

1,450

1,440

1,390

1,430

5,500

11,000

7,330

6,130

4,920

4,140

3,920

3,500

Nov.

3,130

3,410

3,470

3,400

3,180

2,820

2,740

2,600

2,440

2,240

2,130

1 880

1,840

1,770

1,730

1,700

1,760

1 830

3, 830

3,960

3,770

3,760

3,370

3,030

2,740

2,470

2,300

2,180

2,160

2,160

Dec.

2,150

O -)OA

9 inn

2,110

o r\A(\

1,960

1,820

1,640

8,880

20,700

21, 200

15,200

10,500

7,900

6,620

5,720

5,000

4,450

4,000

3,700

3,400

3,160

3,040

2,940

2,680

2,480

2,380

Jan.

3,400

2,310

2,190

2

0fJA

2 130

2,070

1,950

1,870

1,760

1,700

1,570

1,400

1,430

2,100

2,240

2,280

2,340

3,090

2,780

2,210

2,110

o Qon

3,580

Feb.

4,030

8,140

8 660

7,410

5,760

4,890

4,520

3,780

o q-in

3,050

o Qon

2,640

2,370

2,120

2

AOA

1,920

2,020

2,120

9 3«n

2,470

9 wfi

2,600

2,490

Mar.

2

oen

2 840

3,110

3,130

0 QKfi

2,750

2,560

2 460

2,300

2,120

2

fiOA

1,950

1 900

1^870

1,850

1,810

1,720

1,740

1,750

1,930

2,100

2,280

2,280

O Aflft

2,380

2,290

2 9dfl

2

ftftr\

2,000

Apr.

1,990

9 fififi

2,290

2,760

3,700

5,190

6,750

8,940

10, 700

11,000

10, 100

8,660

7,650

7,890

8,400

7,890

7,090

6,400

5,910

5,480

5,100

4,780

4,430

4,190

4,120

4,240

4,740

5,800

May

6,120

6,120

6,060

6,970

9,800

11 600

10, 100

10, 400

11, 900

12,500

13,600

17, 400

20,400

21, 400

22,900

24,400

23,900

21, 400

18,400

14,800

12, 800

11,900

11, 900

12, 500

12, 500

10 700

9,220

June

8,400

8,140

7,650

6,970

6,970

7,650

7,890

8,940

9,500

9,800

8,940

9, 220

8,940

8,400

9,800

11, 900

11,900

11,900

11, 600

12,200

14, 400

15, 200

13, 200

11,900

13,200

14, 400

13, 600

11, 900

10, 100

July

8,400

8,660

8,140

7,650

6,540

6,970

7,890

8,140

7,410

6,970

6,970

6,540

6,540

6,770

5,940

5,380

5,300

5,390

5,500

5,200

5,020

4,960

5,240

5,480

5,330

5,320

Aug.

5,280

3,700

4,010

4,180

4,200

4,180

4,140

3,980

3,650

3,040

2,510

2,220

2,300

2,420

2,740

3,280

3,340

3,910

2,560

2,140

1,940

2,600

2,380

1,900

1,720

2,050

Sept.

2,020

1,840

2,120

2,280

1,930

1,990

2,100

2,100

2,020

1,920

1,920

2,110

2,110

1,930

1,660

1,540

1,560

1,380

1,190

1,210

1,520

1,840

1,860

1,670

1,470

1,180

1,040

940

947

NOTE. Gage-height record faulty Jan. 10,11, Feb. 7,8, Mar. 21 and 22; discharge interpolated.

Monthly discharge of Skagit River near Marblemount, Wash., for the year ending

September SO, 1925

[Drainage area, 1,160 square miles]

Month

July.-.....---..- . ............ .......

Discharge in second-feet

Maximum

11,000 

3,960 

21, 200 

3,580 

8,660 

3,130 

11, 000 

24, 400 

15, 200 

8,600 

5,280 

2,280

24, 400

Minimum

1,320 

1,700 

1,640 

1,400 

1,920 

1,720 

1,990 

5,960 

6,970 

4,960 

1,720 

940

940

Mean

2,900 

2,660 

5,660 

2,150 

3,480 

2,240 

5,850 

13, 600 

10, 500 

6,520 

3,200 

1,720

5,040

Per 

square 

mile

2.50 

2.29 

4.88 

1.85 

3.00 

1.93 

5.04 

11.6 

9.05 

5.62 

2.76 

1.48

4.31

Run-off

Inches

2.88 

2.56 

5.63 

2.13 

3.12 

2.22 

5.62 

13.37 

10.10 

6.48 

3.18 

1.65

58.94

Acre-feet

178,000 

158,000 

348, 000 

132, 000 

193, 000 

138,000 

348,000 

830,000 

625, 000 

401,000 

197,000 

102,000

3, 650, 000
62 SURFACE WATER SUPPLY, 1925, PART XII A

SKAQIT RIVER NEAR CONCRETE, WASH.

LOCATION. In sec. 16, T. 35 N., R. 8 E., at The Dalles, 2 miles below mouth 

of Baker River, 2J^ miles southwest of Concrete, Skagit County.

DRAINAGE AREA. 2,700 square miles. Area in United States, 2,310 square miles 

measured on topographic maps and Washington National Forest map, 

edition of 1922. Area in British Columbia, 390 square miles. 6

RECORDS AVAILABLE. September 15, 1924, to September 30, 1925.

GAGE. Since December 10, 1924, Stevens continuous recorder in concrete shelter, 

on right bank at The Dalles. Gage used prior to December 10, 1924, was 

vertical and inclined staff on right bank about 200 feet above present gage. 

Both gage readings refer to same datum, 163 feet above sea level.

DISCHARGE MEASUREMENTS. Made from cable three-fourths of a mile below

CHANNEL AND CONTROL. Control formed by boulder riffle below canyon for low 

stages and by rock canyon forming The Dalles for high stages.

EXTREMES OP DISCHARGE. Maximum stage recorded during period September 

15, 1924, to September 30, 1925, 19.75 feet at 1 p. m. December 12 (discharge, 

92,500 second-feet); minimum daily discharge, estimated at 3,400 secondfeet September 30, 1925.

High-water marks at gage height 56.6 feet indicate a flood of 500,000 

second-feet to have occurred about 1815. Other floods are known to have 

occurred about as follows:

Date

1856..--.-. ................

Nov. 19, 1897... __ .... _ ...

Nov. 30, 1909 ...............

Gage 

height

Feet 

44.6

38.4

36.4

Dis- i 

charge |

Sec.-ft. \ 350,000 I

275,000 i

260,000 i

Date

Dec. 30, 1917..... .. .-..

Gage 

height

Feet 

33.0

34.9

Discharge

Sec.-ft. 

220,000

240,000

DIVERSIONS. Water is diverted for the operation of Seattle's municipal power 

plant in sec. 21, T. 37 N., R. 12 E., and at low stage the entire flow at that 

point may be carried through the plant, but return to the river is made at 

power plant so that all water passes this station.

REGULATION. At very low stage flow of upper river is partly controlled by 

storage and release of water at tunnel intake of battle's municipal power 

plant, to accommodate plant requirements.

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

Staff gage read to hundredths once daily prior to December 10, 1924. Operation of water-stage recorder, used thereafter, satisfactory except as noted in 

footnote to table of daily discharge, and except for the period August 25 to 

September 5, when clogged intake interfered with correct registering of the 

low-water stages. Discharge September 15 to December 9, 1924, ascertained by applying daily gage height to rating table, thereafter by applying 

to rating table mean daily gage height obtained from recorder graph by 

inspection or, for days of considerable variation in stage, by averaging 

results obtained by applying mean gage heights for shorter intervals. Records good September to November, excellent December to July, and fair 

August and September.

COOPERATION. Gage-height record and some discharge measurements furnished 

by Skagit County.

« White, A. V., Water powers of British Columbia, p. 483, Commission of Conservation, Canada, 1919
SKAGIT RIVER BASIN 63

Discharge measurements of Skagit River near Concrete, Wash., for the period 

September 16, 1924, to September 80, 1925

Date

1924 

Sept 16 .........

Dec. 24.. _ ....

1925

Feb. 9 .

Gage 

height

Feet. 

2.52

4.74

6.78

Discharge

Sec.-ft. 

5,740

10, 700

17,500

Date

1925 

Mar. 11. .......

May 18.........

May 29 

Gage 

height

Feet 

3.62

14.41

10.66

6.96

11.36

Discharge

Sec.-ft. 

8,420

56,600

35,400

18,900

39,900

Date

1926 

July 29... ......

Sept. 9... ......

Gage 

height

Feet 

5.90

5.18

2.66

Discharge

Sec.-ft. 

15,000

12,200

6,090

Daily discharge, in second-feet, of Skagit River near Concrete, Wash., for the period 

September 15, 1924,'to September 30, 1925

Day

1924 

15 

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

17 .

18 .

19 

20 

Day

1924-25 

1 

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

3 

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

5 

6 

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

Q

11 _ .....

13 

14 

15 

16- 

17 .....

18.. ......

19 - 

20 

21. ..

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

23 

24 

25 ......

26 

27 

28 ........

29 

30 ......

31 

Oct.

22,600 

20,500 

20,100 

12,000 

9,980

7,970 

6,850 

7,290 

7,070 

6,410

5,580 

6,540 

7,510 

12,400 

12,000

10,400 

8,200 

6,850 

6,420 

5,990

5,780 

5,780 

5,990 

15,400 

55,800

42, 300 

28,800 

21,300 

18,100 

20,100 

13,000

Sept.

- 5,7

- 6,2

. 5,9

- 4,3

- 4,3

. 3,5

Nov.

13,600 

19,300 

15,800 

18,900 

16,100

13,000 

14,300 

13,300 

11,800 

10,200

9,400 

8,670 

7,740 

7,510 

7,740

9,150 

8,910 

9,105 

37,300 

23,800

20,100 

22, 100 

18, 100 

14,600 

13,000

11,200 

10, 200 

9,400 

9,400 

9,400

80 

00 

90 

40 

40

70

Day

1924 

21. _ _

22. 

f%

24 

?5

26

Dec.

9,150 

9,400 

9,150 

9,400 

9,150

8,200 

7,510 

7,070 

7,070 

14,700

39, 200 

85,400 

71,700 

62,600 

56,400

38,000 

27,400 

22,100 

19,300 

16,900

15,000 

13,300 

12,000 

11,000 

10,400

9,900 

9,650 

10,800 

12,400 

13, 300 

11,800

Jan.

11,200 

11, 800 

11,200 

10,400 

12,400

11, 200 

10,200 

9,650 

9,150 

9,650

9,150 

8,670 

8,200 

7,740 

7,290

7,070 

6,850 

10,000 

14,600 

13,900

15,800 

17, 100 

23, 400 

18,100 

14,300

12, 400 

13,000 

13, 000 

14, 600 

23,800 

29, 200

Feb.

29, 700 

52,200 

51,600 

36,000 

29,500

24,000 

21,500 

19,000 

17,700 

15,400

13,600 

12,600 

11,800 

11,000 

30,400

9,650 

9,150 

8,670 

8,430 

8,200

9,420 

11, 000 

13,000 

13, 900 

12,600

13, 000 

13, 300 

12,400

Mar.

11,000 

12,700 

13,900 

14,600 

13,300

11,800 

10,700 

9,900 

9,150 

8,670

8,200 

7,740 

7,510 

7,290 

7,740

7,740 

7,510 

7,290 

7,290 

7,740

7,510 

8,920 

9,650 

8,910 

9,400

8,910 

8,430 

8,200 

7,740 

7,510 

7.070

Sept. Day

3, 50 

10,40 

22,90 

15,00 

8,67 

6,41

Apr.

7,070 

7,070 

7,290 

8,430 

9,150

10,400 

11,800 

13,900 

19,600 

27,200

31,400 

34,700 

32,200 

26,000 

22,900

24, 700 

28,300 

25,600 

22, 100 

19,700

17,300 

15,800 

14,600 

13,500 

12, 500

11,500 

11,500 

12,000 

13, 500 

17,000

'

1924 

0 27 ..

0 i 28 

0 ! 29 

0 i 30.. 

0

0 |

May

18,000 

19,000 

18,000 

18,000 

21,000

30,000 

38,500 

31,500 

26,500 

28,000

32,000 

32,500 

35,500 

41,000 

45, 500

53,000 

55,000 

57,000 

61,300 

60,600

57,000 

48,600 

38,400 

33,700 

30, 700

31,200 

34,700 

37,300 

36,200 

30,200 

25,600

June July

22,900 

22, 100 

20,900 

18,900 

18,900

19,700 

20,100 

22,900 

25,200 

26,000

23,800 

24,200 

25,600 

23,400 

26,000

33,200 

34,200 

33,200 

33,700 

34,200

41, 200 

44,400 

39,500 

35,200 

40, 000

44,400 

42, 800 

36,200 

30,200 

28,300

24,200 

24,700 

26,500 

27,000 

25,600

23,400 

20,100 

20,100 

21,700 

23,800

25,600 

23,800 

20,900 

20,900 

20,500

20,100 

20,900 

18,500 

16, 500 

15,800

15,800 

16, 500 

15, 800 

14,600 

13, 900

34,300 

15,400 

16,500 

15, 800 

14,300 

15,000

Aug.

15,000 

13,600 

12,000 

10,700 

10,400

11,200 

11,200 

11,800 

12,000 

11,500

11,200 

11,000 

10,400 

9,150 

7,970

7,290 

6,850 

7,070 

7,510 

8,670

9,400 

11, 200 

8,810 

7,070 

6,200

7,210 

8,570 

6,410 

5,990 

5,780 

5,990

Sept.

5,990 

5,780 

5,580 

10,700

Sept.

6,410 

5,990 

5,990 

6,630 

6,410

6,360 

6,300 

6,250 

6,200 

6,000

5,700 

5,700 

5,800 

5,900 

5,500

5,000 

4,800 

4,990 

4,340 

4,160

3,980 

5,000 

5,500 

5,500 

5,000

4,500 

4,200 

3,800 

3,600 

3,400

NOTE. Staff gage not read Sept. 21, 28, Oct. 5,12,19, 26,1924. Water-stage recorder not operating Feb. 

4-8, Apr. 24 to May 18, Sept. 6-16, and 22-30, 1925. Discharge for Sept. 28, Oct. 5, 12, 19, and 26, 1924, 

and for Sept. 6-8, 1925, interpolated. Remaining gaps in record estimated by comparison with records 

of combined flow of Skagit River near Marblemount, Sauk River at Darrington, and Baker River below 

Anderson Creek, near Concrete.
64 SURFACE WATER SUPPLY, 1925, PART XII A

Monthly discharge of Skagit River near Concrete, Wash., for the period September 

15, 1924, to September 80, 1925

[Drainage area, 2,700 square miles]

; Discharge in second-feet

Month | 

j Maximum

I

1924 

September 15-30 _______________ 22,900

1924-25 i 

October- ... 55,800

November.. _________________ 37,300

January ____________________ . 29,200

March... _ ................ __ .... __ 14,600

April.- ...----.-.. _ .....-- __ .. __ 34,700

June. _____________________ 44,400

July . ..- . . . 27,000

September. __________________ 6,630

The year.... ........... __ ... ___ 85,400

Minimum

3,500

5,580 

7,510 

7,070 

6,850 

8,200 

7,070 

7,070 

18,000 

18,900 

13,900 

5,780 

3,400

3,400

Mean

7,820

14,000 

13,800 

21,300 

12,700 

17,800 

9,160 

17,600 

36,300 

29,700 

19,600 

9,330 

5,300

17,200

Per 

square 

mile

2.90

5.19 

5.11 

7.89 

4.70 

6.59 

3.39 

6.52 

13.4 

11.0 

7.26 

3.46 

1.96

6.37

Run-off

Inches

1.73

5.98 

5.70 

9.10 

5.42 

6.86 

3.91 

7.27 

15.45 

12.27 

8.37 

3.99 

2.19

86.51

Acre-feet

248^000

861,000 

821,000 

1, 310, 000 

781,000 

989,000 

563,000 

1,050,000 

2, 230, 000 

1,770,000 

1, 210, 000 

574,000 

315,000

12, 500, 000

THUNDER CREEK NEAR MARBLEMOUHT, WASH.

LOCATION. One-fourth mile above junction with Skagit River, 3^ miles from 

Reflector Bar ranger station, Whatcom County, and 20 miles northeast of 

Marblemount.

DRAINAGE AREA. 111 square miles (measured on Washington National Forest 

map, edition of 1922).

RECORDS AVAILABLE. February 15, 1919, to September 30, 1925.

GAGE. Stevens water-stage recorder on left bank; inspected by F. E. Davis.

DISCHARGE MEASUREMENTS. Made from cable half a mile above gage or by 

wading.

CHANNEL AND CONTROL. Control at high stage is at head of falls about 200 feet 

below gage; at low stage it is the bed of stream between gage and falls. 

One channel at all stages.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, from waterstage recorder, 9.53 feet at 3 a. m. December 12 (discharge, 3,470 secondfeet); minimum stage, 3.25 feet at noon January 17 (discharge, 132 secondfeet). Stage may possibly have been lower during period December 17-31 

when float was frozen in well.

1919-1925: Maximum stage recorded, from high-water marks in well, 

15.5 feet about 4.30 p. m. December 12, 1921 (discharge, 9,720 second-feet); 

minimum stage, 2.88 feet from March 14-17, 1922 (discharge, 71 secondfeet).

ICE. Stage-discharge relation affected by ice during severe winters. Flow estimated from study of observer's notes, weather records, and flow at near-by 

gaging stations.

REGULATION. None.

DIVERSION. None.
SKAGIT EIVEB BASIN 65

ACCURACY. Stage-discharge relation changed December 12 and April 11 to 

September 26; affected by ice December 17-31. Rating curves fairly well 

defined up to 2,000 second-feet. Shifting-control method used April 11 to 

September 26. Operation of water-stage recorder satisfactory. Daily discharge ascertained by applying to rating table mean daily gage height 

determined from recorder graph by inspection or, for days of considerable 

variation in stage, by averaging results obtained by applying mean gage 

heights for shorter intervals. Records good.

Discharge measurements of Thunder Creek near Marblemount, Wash., during the 

year ending September 30, 1925

Date

Jan. 13-- 

Feb. 10 

Gage 

height

Feel 

3.65

3.36

4.08

Discharge

Sec.-ft. 

205

150

307

Date

Do.. 

July 31.. 

Gage 

height

Feet 

5.31

5.34

6.64

Discharge

Sec.-ft.

772

780

1,530

Date Gage 

height

Feet 

4.86

Discharge

Sec.-/*. 

678

Daily discharge, in second-feet, of Thunder Creek near Marblemount, Wash,, for 

the year ending September 30, 1925

Day

1 ..........

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

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

4 ........

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

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

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

8.. . __ 

9 , - _ ..

10 

11 

12 _______ .-

13 __ ......

14 _ ...........

15 

16. . _ ......

17. ___ .. .....

18 

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

20 

21 

22. _ ..........

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

24. _ . __ .....

25 

26 

27 

28 

29 ...... ...

30.... ......

31 __ ..........

Oct.

732

806

584

362

302

265

245

228

211

195

185

189

191

258

313

283

243

224

216

224

241

241

260

1,190

1,970

955

732

548

470

470

415

Nov.

375

388

362

350

337

313

302

290

283

269

263

241

234

234

228

232

239

245

543

456

402

402

375

350

325

302

288

276

274

276

Dec.

274

272

267

267

260

249

239

230

228

408

1,620

3,060

2,500

2,050

1,440

838

250

190

210

Jan.

218

214

207

201

203

193

181

174

172

170

162

160

151

146

141

138

134

175

199

203

207

209

265

245

224

218

203

195

193

256

313

Feb.

362

732

774

673

548

470

415

375

337

302

283

267

249

241

230

222

214

203

195

185

189

199

218

230

232

232

239

237

Mar.

222

256

278

276

263

243

234

220

214

199

195

185

179

177

177

175

172

166

170

177

184

191

198

205

212

219

226

224

214

207

197

Apr.

197

205

230

263

290

337

388

456

600

838

1,000

1,030

906

732

673

712

774

673

600

532

485

456

428

402

375

362

362

388

428

532

May

548

548

516

532

636

979

1,320

1,030

883

930

1,080

1,170

1,290

1,500

1,700

2,050

2,050

2,260

2,420

2,260

1,910

1,630

1,350

1,200

1,170

1,290

1,380

1,440

1,290

1,000

860

June

795

753

673

636

673

795

838

980

1,030

1,060

906

1,030

930

838

1,080

1,470

1,560

1,530

1,500

1,770

2,260

2,340

2,050

1,840

2,260

2,660

2,420

1,980

1,660

1,630

July

1,410

1,500

1,630

1,660

1,560

1,440

1,230

1,320

1,560

1,910

1,910

1,660

1,530

1,700

1,560

1,700

1,740

1,410

1,290

1,320

1,440

1,470

1,380

1,380

1,380

1,530

1,740

1,910

1,630

1,560

1,770

Aug.

1,770

1,530

1,260

1,080

1,260

1,350

1,410

1,470

1,500

1,500

1,500

1,440

1,230

883

692

582

654

753

955

1,320

1,290

1,170

636

532

516

860

636

485

470

565

732

Sept

673

618

816

906

795

673

732

795

774

692

673

732

816

838

673

532

516

500

362

337

402

565

732

712

565

442

325

270

237

222

NOTE. Braced figures give mean discharge for periods indicated.
66 SURFACE WATER SUPPLY, 1925, PART XII A

Monthly discharge of Thunder Creek near Marblemount, Wash., for the year ending

September SO, 1925

[Drainage area, 111 square miles]

Discharge in second-feet Run-off

Month

October ___________________

February

March ___________________

June.. __ .. .

July .

August- ____________________

Maximum

1,970

543

3,060

313

774

278

1,030

2,420

2,660

1,910

1,770

906

3,060

Minimum

185

228

134

185

166

197

516

636

1,230

470

222

Mean

443

315

563

196

323

208

522

1,300

1,400

1,560

1,030

598

708

Per 

square 

mile

3.99

2.84

5.07

1.77

2.91

1.87

4.70

11.7

12.6

14.1

9.28

5.39

6.38

Inches

4.60

3.17

5.84

2.04

3.03

2.16

5.24

13.49

14.06

16.26

10.70

6.01

86.60

Acre-feet

27,200

18,700

34,600

12,100

17,900

12,800

31, 100

79,900

83,300

95,900

63,300

35,600

512,000

SAUK RIVER AT DARRINGTON, WASH.

LOCATION. In SE. J^ see. 24, T. 32 N., R. 9 E., at suspension footbridge, half 

a mile southeast of Darrington, Snohomish County, 2J^ miles below Clear 

Creek, and 23 miles above mouth of river.

DRAINAGE ABE A. 293 square miles (measured on topographic maps).

RECORDS AVAILABLE. June 15, 1914, to September 30, 1925.

GAGE. Vertical and inclined staff on right bank at suspension footbridge; 

installed April 14, 1922; read by Wilber Whaite and E. L. Jackson.

DISCHARGE MEASUREMENTS. Made by wading or from the suspension footbridge.

CHANNEL AND CONTROL. Bed composed of gravel and large boulders. Right 

bank at gage high and not subject to overflow; left bank flat and subject to 

overflow at extremely high stages.

EXTREMES OF DISCHARGE. Maximum stage recorded during year. 7.6 feet, on 

February 2 (discharge, 10,800 second-feet); higher stage probably occurred 

on October 25, while gage was not being read. Minimum stage recorded, 

1.55 feet on September 30 (discharge, 398 second-feet).

1914-1925: Maximum stage, 15.0 feet at 9 a. m. December 29, 1917, and 

4 p. m. December 12, 1921, determined by levels to high-water mark (discharge, 38,000 second-feet); minimum stage recorded, 1.15 feet on March 

26, 1922 (discharge, 315 second-feet).

ICE. Stage-discharge relation only slightly affected by ice during severe winters.

DIVERSIONS. An average diversion of possibly 10 second-feet is made from a 

point about one-fourth mile above gage for the purpose of driving shingle 

bolts to mill pond at Darrington.

REGULATION . None.

ACCURACY. Stage-discharge relation practically permanent; not affected by 

ice. Rating curve well defined below 10,000 second-feet. Gages read to 

hundredths once daily. Daily discharge ascertained by applying daily 

gage height to rating table. Records good, except for estimated periods.

COOPERATION. Gage-height record furnished by United States Forest Service.
SKA.GIT RIVER BASIN 67

Discharge measurements of Sank River at Darrington, Wash., during the year ending

September 30, 1925

Date

Dec. 15 .........

Feb. 7 

Qage 

height

Feet 

6.07

4.31

Discharge

Sec.-ft. 

7,000

3,390

Date Qage 

height

Feet 

4.42

2.58

Discharge

Sec.-ft. 

3,530

1,030

Date height

Feet 

1.91

Discharge

Sec.-ft. 

579

Daily discharge, in second-feet, of Sank River at Darrington, Wash., for the year 

ending September 30, 1925

Day

1 __ .. __ ....

2...... _____ .

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

4 ________ .

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

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

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

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

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

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

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

12.. __ .........

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

14....... _ .....

15 __ .......

16.. ... _ ..

17 _____ ......

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

19. ___ .. ___ ..

20 .. .

21 ... __ .....

22. __ . __ . ....

23. __ ..........

24 __ . __ ......

25 __ . ___ ...

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

27. _ , _ .......

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

29 

30 . __ ..

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

Oct.

2,500

2,000

4,000

Nov.

£, oUU

1,400

3,500

3,150

2,660

2,080

1,700

1,470

1,470

1,470

1,470

Dec.

1,470

1,580

1,360

1,470

1,360

1,070

1,070

910

1,070

8,760

8,040

10,500

7,320

5,700

6,840

3,680

2,820

2,360

2,080

1,820

1,580

1,470

1,260

910

840

1,070

1,160

1,950

2,820

2,080

2,360

Jan.

1,700

2,220

1,700

1,470

2,510

1,700

1,470

1,360

1,160

1,470

1,260

1,360

1,260

990

910

875

1,070

4,640

2,820

5,060

3,680

3,860

4,240

3,150

1,820

1,950

2,660

2,510

3,500

8,040

7,800

Feb.

6,840

10, 800

10, 300

5,920

5,270

3,860

3,320

2,820

2,510

1,950

1,700

1,580

1,470

1,360

1,260

1,260

1,070

990

990

1,070

2,080

1,950

2,510

2,510

2,080

2,080

2,220

1,700

Mar.

1,470

1,950

1,820

2,080

1,700

1,360

1,260

1,160

1,070

990

910

875

840

840

1,070

1,070

990

910

1,070

1,070

1,470

1,260

1,070

1,160

1,070

990

990

910

875

840

Apr.

805

840

910

1,070

1,070

1,360

1,470

1,950

3,150

4,050

4,640

5,060

4,050

3,150

3,320

4,050

3,860

3,150

2,820

2,510

2,080

1,950

1,700

1,700

1,470

1,360

1,360

1,470

1,700

2,220

May

2,510

2,660

2,510

2,510

2,980

4,640

5,480

3,860

3,150

3,500

3,860

3,680

4,240

4,850

5,480

6,380

6,380

6,840

7,320

7,080

6,610

5,060

4,050

3,680

3,500

3,860

4,240

4,240

3,680

3,150

2,820

June

2,660

2,660

2,510

2,080

2,220

2,510

2,510

2,980

2,820

3,150

2,660

2,820

3,150

2,820

3,320

3,860

3,860

3,860

3,860

4,240

5,270

5,060

4,240

3,860

5,270

5,060

4,640

4,050

3,320

3,500

July

2,980

3,500

3,680

3,860

3,860

3,320

2,660

2,360

2,820

3,320

3,150

2,660

2,510

2,380

2,240

2,100

1,970

1,840

1,700

1,820

1,470

1,700

1,580

1,470

1,470

1,470

1,700

1,700

1,580

1,470

1,470

Aug.

1,360

1,260

1,160

990

1,070

1,070

1,070

1,070

1,160

990

1,070

990

910

840

805

700

635

635

805

840

875

875

770

700

605

1,070

668

605

575

548

575

Sept.

605

635

575

575

575

575

548

575

548

548

520

520

520

520

520

520

470

495

470

420

420

420

470

470

445

470

520

420

420

398

NOTE. No gage-height record Oct. 1 to Nov. 22; discharge estimated by comparison with records of 

near-by streams. Braced figures give estimated mean discharge for periods indicated.

Monthly discharge of Sank River at Darrington, Wash., for the year ending September 30, 1925

[Drainage area, 293 square miles]

Discharge in second-feet Run-off

Month

November . ___________ ... __ ..

March. ____________________

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

July..... _

September. __ _____ ________

The vear.... _ ______ . ...

Maximum

8,040

10, 800

2,080

5,060

7,320

5,270

1,360

635

Minimum

-----

840

875

990

840

805

2,510

2,080

1,470

548

398

398

Mean

2,870

2,360

2,590

2,980

1,170

2,340

4,350

3,490

2,320

881

506

2.390

Per 

square 

mile

9.80

8.05

9.76

8.84

10.2

3.99

7.99

14.8

11.9

7.92

3.01

1.73

8.16

Inches

11.30

8.98

11.25

10.19

10.62

4.60

8.91

17.06

13.28

9.13

3.47

1.93

110. 72

Acre-feet

176,000

140,000

176, 000

159,000

166,000

71, 900

139,000

267,000

208, 000

143, 000

54,200

30,100

1. 730. 000
68 SURFACE WATER SUPPLY, 1925, PART XII A

BAKER RIVER BELOW AWDERSOW CREEK, WEAR CONCRETE, WASH.

LOCATION. In SE. M sec. 30, T. 37 N., R. 9 E., Whatcom County, 350 feet 

below Anderson Creek, a quarter of a mile above Baker River ranger station, 

and 11 miles above Concrete.

DRAINAGE AREA. 184 square miles (measured on topographic maps).

RECORDS AVAILABLE. September 10, 1910, to October 3, 1925, when station 

was discontinued.

GAGE. Stevens continuous water-stage recorder on left bank; installed September 24, 1915; inspected by Charles Bagnell.

DISCHARGE MEASUREMENTS. Made from cable 300 feet above gage.

CHANNEL AND CONTROL. Bed composed of boulders and gravel over bedrock; 

not likely to shift except during extremely high water. Right bank high 

and rocky; left bank fairly high, wooded, subject to overflow at about 

11-foot stage.

EXTREMES OF DISCHARGE. Maximum stage during period October 1, 1924, to 

October 3, 1925, occurred during period December 12-15, when recorder 

was not operating; stage and discharge not determined. Minimum stage 

from recorder 1.92 feet from 2 to 4 p. m. October 2, 1925 (discharge, 474 

second-feet).

1910-1925: Maximum stage recorded, 13.7 feet at 12.30 p. m. December 

29, 1917 (discharge, 36,800 second-feet); minimum stage recorded, 1.21 

feet on December 15 and 16, 1919 (discharge, 219 second-feet).

ICE. Stage-discharge relation not affected by ice.

DIVERSIONS. None.

REGULATIONS. None.

ACCURACY. Stage-discharge relation changed at high water December 12-15. 

Rating curves fairly well denned below 10,000 second-feet. Operation of 

water-stage recorder satisfactory except as noted in footnote to table of 

daily discharge. Daily discharge ascertained by applying to rating table 

mean daily gage height determined from recorder graph by inspection or, 

for a few days when range of stage was considerable, by averaging results 

obtained by applying mean gage heights for shorter intervals. Records fair.

The following discharge measurement was made:

September 11, 1925: Gage height, 2.75 feet; discharge, 925 second-feet.

Daily discharge, in second-feet, of Baker River below Anderson Creek, near Concrete, 

Wash., for the year ending September SO, 1925

Day

I... ..... ... .

2- ..

3 ....-.. __

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

5. . .

6.....-. .....

7 _ ............

8..- . - .

9 _ ... ......

10 

11 ..

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

13 . .

14- - .

15 .

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

17.. __ ..

18..... .

19 .. .

20 . .

Oct.

3,370

2,070

1,230

1,070

998

889

814

1,230

2,770

2,170

1,580

1,270

1.010

Nov.

2,380

1,580

1,310

889

801

7fiO

775

CQ4

990

1,270

5,610

3.530

Dec.

974

1,010

i nfifl

998

882

788

715

688

1,870

8,500

6,000

4,000

3 onn

2,600

2.200

Jan.

1 Qflfl

1,200

1,200

902

881

874

R74.

771

730

724

724

840

1.360

Feb.

4 160

8,180

7,860

3,650

2,810

1,880

1,700

1,200

1,040

975

Qon

888

895

Mar.

1,320

1,750

1,880

1,880

1,660

1,440

1,280

1,160

1,080

982

Gift

881

847

860

895

902

874

828

860

902

Apr.

828

828

888

1,040

1,200

1,360

1,480

1,840

2,680

3,730

4,070

4,250

3,570

2,550

2,220

2,880

3,730

2,880

2,270

1.930

May

2,120

2,430

2,270

2,120

2,550

3,730

4,440

3,330

2,740

3,020

3,570

3,490

3,900

4,440

4,840

5,620

5,740

5,860

6,250

6.120

June

2,320

2,270

2,070

1,880

1,930

2,020

1 980

2,320

2,740

2,620

2,380

2,550

2,740

9 4OO

3,410

3,980

3,730

3,730

3,820

4.070

July

2,680

3,100

3,490

3,180

2,880

2,430

2,620

2,950

3,410

3,820

3,410

3,100

3,100

2,880

2,950

2,950

2,320

2.270

Aug.

2,270

2,020

1,750

1,620

1,660

1,700

1,800

1,930

2,020

1,930

1,880

1,800

1,620

1,440

1,240

1,120

1,160

1,200

1,360

1.570

Sept.

1,000

990

1,080

1,120

1,080

1,040

1,040

1,040

998

960

975

1,000

1,040

1,040

968

1,040

909

840

777

753
TJPPEK COLUMBIA KIVER 69

Daily discharge, in second-feet, of Baker River below Anderson Creek, near Concrete, 

Wash., for the year ending September SO, 1925 Continued

Day

21. ..

22......... __ ..

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

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

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

26 . 

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

28 ........

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

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

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

Oct.

926

889

868

5,480

12,200

6,700

4,440

9 Qlfl

2,380

2,170

Nov.

2,500

2,380

1,920

1,580

1,310

1,150

998

QOA

942

990

Dec.

1,900

1,500

1,400

1,300

1,100

1,000

900

1,100

1,200

2,100

1,400

Jan.

1,280

2,180

2,950

2,070

1,570

1,320

1,320

1,240

1,480

3,420

3,650

Feb.

1,240

1,440

1,700

1,700

1,620

1,620

1,620

1,440

Mar.

916

1,200

1,200

1,120

1,160

1,080

1,000

982

923

874

834

Apr.

1,750

1,620

1,520

1,440

1,320

1,240

1,200

1 280

1,480

1,840

May

5,620

4,160

3,180

2,810

2,880

3,180

3,730

4,840

4,640

3,410

2,680

June

4,840

4,740

4,070

3,980

4,840

5,380

4,840

4,070

3,410

3,180

July

2,320

2,490

2,430

2,120

2,020

2,120

2,320

2,430

2,220

2,170

2,320

Aug.

1,520

2,170

1,520

1,200

1,040

1,720

1,480

1,160

1,000

1,040

1,040

Sept.

814

952

1,040

1,040

923

834

735

647

580

548

NOTE. Recorder not operating satisfactorily Dec. 12 to Jan. 1 and Jan. 6-19. Discharge Dec. 12 to Jan. 1 

determined by hydrograph comparison with discharge of Skagit River near Concrete less the combined 

discharge of Skagit River near Marblemount and Sauk River at Darrington; discharge Jan. &-19 determined from staff-gage readings. Braced figures show estimated mean discharge for periods indicated. 

Discharge for Oct. 1, 2, and 3,1925, was respectively 506,494, and 494 second-feet.

Monthly discharge of Baker River below Anderson Creek, near Concrete, Wash., for 

the year ending September 30, 1925

[Drainage area, 184 square miles]

Month

November.. ________________

Mav

July

August

Discharge in second-feet

Maximum

12,200 

5,610

3,650 

8,180 

1,880 

4,250 

6,250 

5,380 

3,820 

2,270 

1,120

Minimum

814 

769 

688 

718 

888 

828 

828 

2,120 

1,880 

2,020 

1,000 

548

548

Mean

2,510 

1,650 

3,260 

1,360 

2,220 

1,110 

2,030 

3,860 

3,280 

2,730 

1,550 

927

2,210

Per 

square 

mile

13.6 

8.97 

17.7 

7.39 

12.1 

6.03 

11.0 

21.0 

17.8 

14.8 

8.42 

5.04

12.0

Run-off

Inches

15.68 

10.01 

20.41 

8.52 

12.60 

6.95 

12.27 

24.21 

19.86 

17.06 

9.71 

5.62

162.90

Acre-feet

154,000 

98,200 

200,000 

83,600 

123,000 

68,200 

121,000 

237,000 

195,000 

168,000 

95,300 

55,200

1,600,000

UPPER COLUMBIA RIVER BASIN

MAIN STREAM 

COLUMBIA RIVER AT TRAIL, BRITISH COLUMBIA

LOCATION. At highway bridge at Trail, 15 miles above international boundary 

and mouth of Clark Fork and 18 miles below mouth of Kootenai River.

DRAINAGE AREA. 34,000 square miles (measured by Dominion Water Power 

Branch).

RECORDS AVAILABLE. April 18, 1913, to September 30, 1925.

GAGE. Chain gage installed on bridge in June, 1913, read by C. A. Broderick.

DISCHARGE MEASUREMENTS. Made from highway bridge.

CHANNEL AND CONTROL. Channel straight for a quarter of a mile above and 

below gage. Riffle control below gage; apparently permanent.
70 SURFACE WATER SUPPLY, 1925, PART XII A

EXTREMES OF DISCHARGE. Maximum mean daily stage recorded during year,

35.6 feet May 26 and 27 (discharge, 245,000 second-feet); minimum mean

daily stage recorded, 10.16 feet January 28 (discharge, 23,300 second-feet). 

1913-1925: Maximum stage recorded, 41.6 feet June 14 and 15, 1913

(discharge, 312,000 second-feet); minimum stage recorded, 7.40 feet March 28,

1917 (discharge, 9,600 second-feet). 

ICE. Stage-discharge relation not affected by ice. 

DIVERSION. A small amount of water is diverted above station. 

REGULATION. None. 

ACCURACY. Stage-discharge relation permanent. Gage read to hundredths

twice daily. Daily discharge ascertained by applying mean daily gage height

to rating table. 

COOPERATION. Complete record furnished by Dominion Water Power and

Reclamation Service, Department of the Interior, Canada.

The following discharge measurements were made:

April 15, 1925: Gage height, 16.70 feet; discharge, 67,200 second-feet.

September 17, 1925: Gage height, 16.46 feet; discharge, 67,600 second-feet.

Daily discharge, in second-feet, of Columbia River at Trail, British Columbia, for 

the year ending September 80, 1925

Day

1. __

2. _ .... ..

3_ 

4 

5 .

6 

7 

8..........

9. ...

10 

11. ..

12 

13 

14... ....

15 _ . ......

16 . .

17 . 

18 

19 

20 

21 _____ .

22

23 

24 

25 

26 

27 

28.. .

29 

30 

31 

Oct.

49,200 

47,400 

46,700 

46,000 

45,400

44,800 

44,200 

43, 700 

43,300 

42,900

42,400 

41,800 

41,200 

40,700 

40,000

39, 500 

38,800 

38,200 

37, 600 

36,900

36, 400 

35,800 

35,200 

35, 800 

36, 400

37,000 

36,900 

37, 500 

38,200 

38, 800 

39, 500

Nov.

40,200 

40,800 

41,500 

42,200 

42,800

43,200 

42,900 

42,400 

41,900 

41,200

40,600 

40,000 

39,300 

38,600 

37, 300

37,400 

36,700 

36,100 

35,300 

34, 700

34, 000 

33, 400 

32,800 

32, 200 

31,700

31,200 

30, 700 

30,200 

29, 700 

29, 200

Dec.

28,700 

28,400 

28,000 

27,500 

27,000

26,400 

26,000 

25,500 

24,500 

24,300

24,200 

24,500 

24,900 

25,600 

26, 100

26,300 

27, 000 

27, 500 

28,800 

29,800

31,300 

32,300 

32, 700 

32, 200 

31,900

31,300 

30,500 

30,300 

29, 500 

29,200 

29,100

Jan.

28,900 

28,900 

28, 600 

28,900 

29, 100

28,900 

28,300 

27,700 

26,900 

26,200

25,600 

25,000 

24,600 

24,400 

24,200

24,000 

24,000 

23, 700 

23,500 

23,500

23,700 

23,500 

23,500 

23,500 

23,500

23, 500 

23,400 

23,300 

23, 400 

23,500 

23, 500

Feb.

23,500 

23,600 

23,700 

24,000 

24,200

24,500 

24, 700 

25,000 

25,400 

25,700

25,900 

26,200 

26,500 

26,800 

27,200

26,600 

26,200 

25, 900 

25,600 

25, 300

25,000 

24,800 

24,700 

24,800 

24,900

25,000 

25,200 

25,500

Mar.

25,600 

25, 600 

25,900 

25,800 

25,900

26,100 

26,200 

26,200 

25,900 

25,600

25, 300 

25, 000 

25,000 

25,000 

24,800

24,800 

24,800 

24,900 

24,800 

24,500

24,200 

24,000 

24,000 

24,000 

24,200

24,100 

24, 200 

24,200 

24,500 

24,800 

25,400

Apr.

26,000 

26,700 

27,400 

29,500 

30,000

31,600 

34,100 

37,000 

40,000 

44,200

48,400 

53,400 

58,200 

62, 700 

67,700

72,800 

78,300 

81,400 

84,500 

87, 000

88, 200 

89, 400 

90, 000 

90,200 

90, 600

90,200 

89,800 

89, 300 

89,000 

89,000

May

89,800 

90,600 

91,400 

92,400 

93,600

96, 900 

100,000 

102, 000 

107,000 

112, 000

118, 000 

123,000 

130,000 

137, 000 

146, 000

155, 000 

164,000 

175, 000 

186, 000 

188, 000

211, 000 

223, 000 

233, 000 

242, 000 

244,000

245, 000 

245,000 

243,000 

241, 000 

238,000 

234,000

June

230,000 

227,000 

223,000 

218, 000 

213,000

210,000 

205, 000 

201,000 

200, 000 

197, 000

195, 000 

194, 000 

195, 000 

196, 000 

197, 000

199, 000 

202, 000 

207,000 

210, 000 

214,000

216, 000 

222, 000 

225, 000 

229,000 

232,000

234, 000 

233, 000 

236,000 

240, 000 

240, 000

July

238,000 

236,000 

232,000 

228,000 

224,000

220,000 

215, 000 

209,000 

200,000 

190,000

189, 000 

188,000 

187, 000 

185,000 

182,000

179, 000 

176,000 

173, 000 

170,000 

168, 000

164, 000 

159,000 

355,000 

151,000 

149, 000

146, 000 

143, 000 

142, 000 

140, 000 

139, 000 

138, 000

Aug.

138,000 

138,000 

138, 000 

138,000 

137,000

136, 000 

133,000 

130, 000 

126,000 

122, 000

121,000 

120,000 

118, 000 

117, 000 

115, 000

114, 000 

112, 000 

111,000 

110,000 

108,000

107, 000 

105, 000 

104,000 

102, 000 

102, 000

98,800 

94,300 

90,600 

87,400 

83,600 

80,300

Sept.

76,900 

73,600 

71,200 

68,800 

67,600

65,200 

63,200 

63,600 

62,800 

61,200

61,600 

62,000 

62,000 

62,400 

62,800

63,400 

62,700 

62, 100 

61,600 

60,000

58, 600 

57,200 

55,800 

54, 700 

53, 700

52,600 

51, 600 

50,800 

49,800 

48,800

NOTE. Gage not read Feb. 10 and 11; discharge interpolated.
UPPER COLUMBIA RIVER 71

Monthly discharge of Columbia River at Trail, British Columbia, for the year ending

September SO, 1925

[Drainage area, 34,000 square miles]

Month

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

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

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

Discharge in second-feet

Maximum

49,200 

43, 200 

32,700 

29,100 

27,200 

26, 200 

90,600 

245,000 

240,000 

238, 000 

138,000 

76,900

245,000

Minimum

35,200 

29,200 

24,200 

23,300 

23,500 

24,000 

26,000 

89,800 

194,000 

138,000 

80, 300 

48,800

23, 300

Mean

40,600 

37, 000 

28,100 

25, 300 

25,200 

25,000 

63, 900 

164,000 

215, 000 

181, 000 

114,000 

60,900

81,700

Per 

square 

mile

1.19 

1.09 

.83 

.74 

.74 

.74 

1.88 

4.82 

6.32 

5.32 

3.35 

1.78

2.40

Run-off

Inches

1.37 

1.22 

.96 

.85 

.77 

.85 

2.10 

5.56 

7.05 

6.13 

3.86 

1.99

32.71

Acre-feet

2, 500, 000 

2, 200, 000 

1, 730, 000 

1, 560, 000 

1, 400, 000 

1, 540, 000 

3, 800, 000 

10, 100, 000 

12, 800, 000 

11, 100, 000 

7, 010, 000 

3, 620, 000

59, 400, 000

COLUMBIA RIVER AT KETTLE FALLS, WASH.

LOCATION. In SW. M sec. 23, T. 38 N., R. 37 E., 150 feet above ferry at Kettle 

Falls, Stevens County, l^ miles above mouth of Colville River, and 4J^ 

miles below mouth of Kettle River.

DRAINAGE AREA. 64,500 square miles. (Areas in United States measured on 

maps issued by United States Geological Survey. Areas in British Columbia 

measured on Department of the Interior railway-belt maps; Department of 

Mines, West Kootenay sheet; and Department of Lands map.)

RECORDS AVAILABLE. April 1, 1916, to September 30, 1925. Monthly discharge, 

April, 1913, to March, 1916.

GAGE. Since June 5, 1921, several sets of vertical and inclined staff gages on 

left bank at Kettle Falls Ferry, set first at arbitrary datum and later to 

mean sea level datum, read by C. T. Humphreys and B. E. Crofoot. An 

auxiliary low-water gage installed at mean sea level datum on right or west 

bank January 25 and 26, 1924, was read in conjunction with gages on left 

bank or east side October 6 to April 5, 1925.

DISCHARGE MEASUREMENTS. Made from cable at gage.

CHANNEL AND CONTROL. Left bank high; right bank is overflowed at extremely 

high stages. Two channels at extremely low stage. Channel straight for 

half a mile above and 1 mile below gage. Bed composed of small boulders 

and gravel. Control consists of river channel below gage and Rickey 

Rapids, which is about 3 miles downstream from gage; permanent except 

at extremely high stages.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 1,190.7 feet 

at 6.20 p. m. May 28 and 7.00 a. m. May 30 (discharge, 373,000 second-feet); 

minimum stage, 1,166.5 feet on December 10-12 (discharge, 31,700 secondfeet).

1913-1925: Maximum stage, 34.2 feet during night of June 14 and 15, 

1913, as determined from a well-defined high-water mark referred to United 

States Weather Bureau gage at Marcus (discharge, 468,000 second-feet). 

Minimum discharge, 15,800 second-feet, result of current-meter measurement February 16, 1923, when stage-discharge relation was affected by ice. 

Minimum discharge prior to winter of 1921-22 not known because daily 

record of stage not available.

The United States Weather Bureau reports a maximum stage of 44.7 feet 

on the Marcus gage during the flood in June (probably June 7), 1894; discharge, 735,000 second-feet, estimated by extending rating curve.
72 SURFACE WATER SUPPLY, 1925, PART XII A

ICE. Stage-discharge relation affected by ice during severe winters; flow estimated from gage-height record, discharge measurements, observer's notes, 

and weather records.

DIVERSIONS. Considerable water diverted for irrigation above gage but amount 

very small in proportion to flow past gage.

REGULATIONS. None, except the effect of natural storage in Upper and Lower 

Arrow Lakes, Kootenay, Flathead, Pend Oreille, Priest, and other smaller 

lakes.

ACCURACY. Stage-discharge relation practically permanent; affected by ice 

December 20-25. Rating curve well defined below 500,000 second-feet. 

Gage read to hundredths twice daily. Morning and afternoon readings 

made by different parties. Daily discharge ascertained by applying mean 

daily gage height to rating table. Records excellent.

Discharge measurements of Columbia River at Kettle Falls, Wash., during the year 

ending September 30, 1925

Date

Nov. 12.........

Gage 

height

Feet 

68.91

67.43

Discharge

Sec.-ft. 

45, 500

36,700

Date

Jan. 22. ........

Gage 

height

Feet 

67.05

68.62

Discharge

Sec.-ft. 

33,200

45,300

Date Gage 

height

Feet 

88.17

72.26

Discharge

Sec.-ft. 

318, 000

71, 600

Daily discharge, in second-feet, of Columbia River at Kettle Falls, Wash., for the 

year ending September SO, 1925

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.

53,600 

52,000 

51, 300 

50, 600 

49,800

49,100 

48,400 

48,400 

47,700 

47, 000

46,300 

45,600 

44,900 

44,200 

43,600

42,900 

42,300 

41,600 

41,000 

40,400

39,800 

39,800 

39,200 

38, 600 

38,000

39,800 

41, 000 

42,300 

42,900 

43, 600 

44,200

Nov.

44,900 

46, 300 

47, 000 

47, 700 

47,700

47, 700 

47,700 

48,400 

48,400 

47, 700

46,300 

46, 300 

44,900 

44,200 

43, 600

42, 300 

42,300 

41,600 

41,000 

40,400

39,800 

39,200 

39, 200 

38, 600 

38, 000

37,400 

36, 800 

35, 600 

35, 600 

35,600

Dec.

35,000 

35,000 

34,400 

33,900 

33,900

33,300 

33, 300 

32,800 

32,200 

31, 700

31,700 

31,700 

32,800 

33,900 

35,600

38, 600 

38,600 

36, 800 

34,400 

33, 300

33,900 

33,900 

34, 400 

33, 900 

33, 900

34, 400 

35,000 

35, 600 

35, 600 

36, 800 

36,800 , ...

Jan.

36, 800 

36, 800 

36,800 

36,800 

37,400

37,400 

36,800 

36,800 

36,800 

36,800

36,800 

36,800 

36,800 

36,800 

36,200

36,200 

35,600 

35,600 

35, 000 

35,000

35,000 

35,000 

35,000 

35,600 

35,000

34,400 

34, 400 

34,400 

34,400 

34,400 

34.400

Feb.

35,000 

35,600 

36,800 

39,200 

42,300

44,200 

44,900 

47,000 

48,400 

49,100

49,100 

49,100 

48,400 

47,700 

47,000

46,300 

44,900 

44,200 

44,200 

42,900

42,300 

42, 300 

42,300 

43, 600 

43, 600

42,900 

42,900 

43,600

Mar.

42,900 

42,900 

42,900 

42,900 

43, 600

42,900 

43,600 

43, 600 

43,600 

43,600

42,900 

42,300 

42,300 

41,600 

41,600

41,000 

40,400 

40,400 

39,800 

39,200

39,200 

39,200 

39,800 

39,800 

39,800

39,800 

40,400 

41,000 

42,300 

42,900 

43, 600

Apr.

44,200 

45,600 

47,700 

51,300 

54,300

59,600 

64,400 

69, 300 

75, 700 

83,200

93,200 

104,000 

112,000 

116, 000 

121,000

129,000 

137, 000 

146, 000 

151, 000 

154, 000

156,000 

158,000 

160,000 

160, 000 

162, 000

160,000 

160, 000 

160,000 

158, 000 

158,000

May

162,000 

164, 000 

164,000 

164,000 

166,000

169, 000 

177, 000 

183,000 

186,000 

191,000

197, 000 

204,000 

210,000 

220,000 

232,000

240,000 

254,000 

266, 000 

285,000 

300,000

318, 000 

336, 000 

352, 000 

359, 000 

366, 000

371, 000 

373, 000 

371, 000 

371, 000 

371,000 

366,000

June

359,000 

355, 000 

350,000 

343,000 

336, 000

329,000 

325,000 

318, 000 

313, 000 

309, 000

307,000 

302,000 

302,000 

298,000 

298,000

298,000 

298,000 

300,000 

304, 000 

307,000

309, 000 

313,000 

316,000 

320,000 

322, 000

322,000 

327, 000 

329, 000 

332, 000 

334,000

July

332,000 

327,000 

320,000 

318, 000 

311,000

302,000 

296,000 

285,000 

274,000 

266, 000

258,000 

254,000 

246,000 

242,000 

237,000

234,000 

230,000 

225,000 

220,000 

215, 000

210, 000 

204,000 

197, 000 

191, 000 

188,000

181,000 

180,000 

175, 000 

174, 000 

170, 000 

169, 000

Aug.

168,000 

166,000 

166,000 

164,000 

164,000

162,000 

157, 000 

154,000 

148, 000 

145,000

142,000 

139,000 

137, 000 

134, 000 

133,000

130,000 

130,000 

129, 000 

128,000 

125,000

122,000 

121, 000 

118, 000 

117,000 

116,000

112, 000 

108, 000 

105,000 

101, 000 

97,600 

94, 300

Sept.

91,000 

88,000 

85,100 

82,200 

80,300

78,500 

77,500 

76, 600 

75,700 

73,800

72,900 

72,900 

72,900 

72,900 

72,900

72,900 

72,900 

72,900 

72,000 

71,100

70,200 

67,700 

66,000 

65,200 

63,600

62,800 

62,000 

62,000 

61,200 

59, 600
UPPER COLUMBIA RIVER 73

Monthly discharge of Columbia River at Kettle Falls, Wash., for the year ending

September SO, 1925

[Drainage area, 64,500 square miles]

Month

March ____ ____ ...... .... ..

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

June ___________________

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

Discharge in second-feet

Maximum

53, 600 

48, 400 

38,600 

37,400 

49,100 

43, 600 

162, 000 

373, 000 

359, 000 

332,000 

168,000 

91,000

373, 000

Minimum

38,000 

35,600 

31,700 

34,400 

35,000 

39,200 

44,200 

162, 000 

298, 000 

169,000 

94,300 

59, 600

31,700

Mean

44,500 

42,700 

34,400 

35,900 

43,900 

41,700 

115,000 

261,000 

319, 000 

240,000 

133, 000 

72,500

116, 000

Per 

square 

mile

0.690 

.662 

.533 

.557 

.681 

.647 

1.78 

4.05 

4.95 

3.72 

2.06 

1.12

1.80

Run-off

Inches

0.80 

.74 

.61 

.64 

.71 

.75 

1.99 

4.67 

5.52 

4.29 

2.38 

1.25

24.35

Acre-feet

2,740,000 

2, 540, 000 

2, 120, 000 

2, 210, 000 

2, 440, 000 

2, 560, 000 

6,840,000 

16, 000, 000 

19, 000, 000 

14, 800, 000 

8,180,000 

4, 310, 000

83, 700, 000

COLUMBIA RIVER AT VERNITA, WASH.

LOCATION. In sec. 11, T. 13 N., R. 24 E., at Richmond Ferry half a mile north 

of Vernita and 6 miles below Priest Rapids, Benton County.

DRAINAGE AREA. 95,500 square miles. (Areas in the United States measured 

on topographic maps and on other maps issued by the United States Geological Survey. Areas in British Columbia measured on Department of the 

Interior railway-belt maps; Department of Mines, West Kootenai sheet; 

and Department of Lands map.)

RECORDS AVAILABLE. Flood heights only, at Wenatchee, 1894 to 1903; continuous gage height record at Wentchee April 18, 1904, to December 31, 

1916; at Beverly January 1-13, 1917; at Vernita January 14, 1917, to 

September 30, 1925. Gage-height record at Wenatchee published by United 

States Weather Bureau.

GAGE. Since March 25, 1918, vertical staff gage in eight sections, on right bank 

at ferry; read by J. P. Richmond. Gage datum 388.7 feet above sea level.

DISCHARGE MEASUREMENTS. Made from standard gaging car on ferry cable 

at Vernita or, when ice conditions are severe, from railroad bridge at Beverly.

CHANNEL AND CONTROL. Bed composed of gravel and boulders. High-water 

control is Coyote Rapids 6 or 7 miles below gage; low-water control, riffle 

about three-fourths mile below gage; apparently permanent.

EXTREMES OP DISCHARGE. Maximum stage recorded during year, 29.2 feet 

May 28 and 29 (discharge, 434,000 second-feet); minimum stage recorded, 

2.3 feet December 11 and 12 (discharge, 39,300 second-feet).

1913-1925: Maximum stage recorded, 45.7 feet at Wenatchee June 15 

and 16, 1913 (discharge, 528,000 second-feet); minimum discharge, 23,900 

second-feet (current-meter measurements) January 31, 1917, and December 

14, 1919, when stage-discharge relation was affected by ice.

Maximum stage recorded at Wenatchee by United States Weather 

Bureau and Great Northern Railway Co., 58.0 feet June 7, 1894 (estimated 

discharge by extending rating curve, 710,000 second-feet). The Chief of 

Engineers, United States Army,7 gives a crest elevation of the flood in 1894 

and an elevation of zero on the Weather Bureau gage from which it appears 

that the gage height was 59.8 feet (estimated discharge, by extending rating 

curve, 740,000 second-feet).

* Report of Chief of Engineers, U. S. Army, 1895, Pt. V, p. 3542.
74 SURFACE WATER SUPPLY, 1925, PART XII A.

ICE. Stage-discharge relation affected by ice except during mild winters. Flow 

estimated from gage-height record, discharge measurements, observer's 

notes, and weather records.

DIVERSION. Some water diverted for irrigation.

REGULATION. None.

ACCURACY. Stage-discharge relation permanent; affected by ice December 

19-28. Rating curve well defined. Gage read to hundredths twice daily. 

Daily discharge ascertained by applying mean daily gage heights to rating 

table. Records excellent except for periods of ice effect.

The following discharge measurements were made:

December 30, 1924: Gage height, 3.70 feet; discharge, 48,100 second-feet. 

June 18, 1925: Gage height, 25.21 feet; discharge, 350,000 second-feet. 

September 29, 1925: Gage height, 6.32 feet; discharge, 70,600 second-feet.

Daily discharge, in second-feet, of Columbia River at Vernita, Wash., for the year 

ending September SO, 1925

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 

SO -

SI ....

Oct.

62, 100 

61, 300 

59, 700 

59,700 

58,100

57, 300 

56,500 

55,000 

55, 000 

55,000

53,400 

53,400 

52,700 

52,000 

51,200

50,500 

50,500 

49, 100 

48,400 

47, 800

46,400 

45,800 

45,200 

45, 800 

45,200

45, 800 

45,800 

46,400 

47, 100 

49,100 

50, 500

Nov.

50, 500 

51, 200 

52,000 

52,000 

54,200

54,200 

54,200 

55,000 

54, 200 

54, 200

54,200 

54,200 

53, 400 

52, 700 

52,000

51,200 

50, 500 

49,100 

47,800 

47,800

47,800 

47,800 

49,100 

49, 100 

50, 500

49,800 

47,800 

45,800 

44,500 

43,800

Dec.

43,800 

42, 600 

42,600 

42,600 

41,200

41,200 

42,600 

42,600 

41, 900 

40,000

39,300 

39,300 

43, 200 

49,100 

53,400

57, 300 

57, 300 

55,000

52, 500

50,500

49, 100 

48,400 

49, 800

Jan.

51,200 

52, 700 

51,200 

49, 800 

49,400

49, 100 

47,800 

47,800 

47, 800 

46,400

45, 800 

45, 800 

45,200 

45, 200 

45, 800

47,100 

45,200 

43,800 

43,800 

43,200

43,200 

45, 200 

45,800 

45, 800 

46,400

49,100 

47, 800 

46,400 

45, 800 

45,800 

47,100

Feb.

53,400 

61,300 

62,900 

64,600 

63,800

67, 200 

73,100 

74,800 

85,600 

83,800

82, 000 

81, 100 

80, 200 

77, 500 

76,600

74, 000 

71,400 

68,000 

65, 400 

65,400

62, 900 

63,800 

62, 100 

63,800 

64, 600

64,600 

64, 600 

64,600

.......

Mar.

65,400 

64,600 

63, 800 

64,600 

63, 800

62, 900 

63, 800 

64,600 

63,800 

63,800

62, 900 

62, 100 

62, 100 

61,300 

60,500

59,700 

58, 900 

59,700 

58,900 

57,300

58,100 

58, 100 

58, 100 

58, 100 

58, 100

58,900 

59,700 

61,300 

62,100 

62,900 

63, 800

Apr.

64,600 

65,400 

67,200 

68, 800 

69, 700

74,800 

80, 200 

86,500 

95,800 

103, 000

112, 000 

126, 000 

138,000 

150, 000 

158, 000

164,000 

167, 000 

179,000 

185, 000 

194, 000

197, 000 

199, 000 

202, 000 

202,000 

202,000

203,000 

202,000 

199, 000 

199,000 

197, 000

May

196,000 

199,000 

200,000 

202,000 

202, 000

203, 000 

208,000 

218,000 

227,000 

232,000

238, 000 

245,000 

252,000 

263,000 

274, 000

288, 000 

308,000 

323,000 

339, 000 

357, 000

373, 000 

389, 000 

405,000 

415, 000 

424, 000

429, 000 

431,000 

434,000 

434, 000 

431, 000 

429,000

June

424,000 

417,000 

410,000 

403,000 

396,000

387, 000 

382,000 

377,000 

370, 000 

364,000

359, 000 

354,000 

350, 000 

348, 000 

343, 000

341,000 

339,000 

341,000 

345,000 

345, 000

350,000 

352,000 

357,000 

359, 000 

359, 000

361, 000 

364,000 

364,000 

364,000 

364,000

July

364,000 

361, 000 

357, 000 

354, 000 

350,000

343, 000 

334, 000 

328,000 

319, 000 

311, 000

300, 000 

288, 000 

280,000 

270,000 

265, 000

261,000 

255, 000 

250,000 

246, 000 

239,000

232, 000 

227, 000 

222, 000 

216, 000 

208, 000

202,000 

196, 000 

193, 000 

188, 000 

187, 000 

184, 000

Aug.

179,000 

176, 000 

175, 000 

174,000 

172,000

171, 000 

169,000 

168,000 

164,000 

160,000

156, 000 

153,000 

148,000 

145, 000 

143,000

140, 000 

139, 000 

138,000 

136,000 

134,000

133, 000 

131, 000 

128, 000 

126, 000 

125, 000

123, 000 

122, 000 

119, 000 

116,000 

113, 000 

112,000

Sept.

108, 000 

104,000 

101, 000 

96,800 

95, 800

94,000 

92,000 

89,200 

88, 300 

86, 500

84,700 

82,900 

81, 100 

80,200 

80,200

80,200 

80,200 

80,200 

80,200 

80,200

79, 300 

78,400 

77,500 

75,700 

74,000

72, 200 

71,400 

70,600 

68,800 

68,800

NOTE. Gage not read Jan. 5; discharge interpolated. Braced figures give estimated mean discharge 

for periods indicated.
KOOTENAI RIVER BASIN 75

Monthly discharge of Columbia River at Vernita, Wash., for the year ending September 30, 1925

[Drainage area, 95,500 square miles]

Montb

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

Discharge in second-feet

Maximum

62,100 

55,000 

57,300 

52,700 

85,600 

65,400 

203,000 

434, 000 

424,000 

364,000 

179,000 

108, 000

434,000

Minimum

45, 200 

43, 800 

39, 300 

43, 200 

53,400 

57, 300 

64,600 

196, 000 

339, 000 

184,000 

112, 000 

68,800

39, 300

Mean

51, 700 

50,700 

47,700 

46,900 

69,400 

61,400 

145, 000 

309,000 

366, 000 

269, 000 

145, 000 

83,400

137, 000

Per 

square 

mile

0.541 

.531 

.499 

.491 

.727 

.643 

1.52 

3.24 

3.83 

2.82 

1.52 

.873

1.43

Run-off

Inches

0.62 

.59 

.58 

.57 

.76 

.74 

1.70 

3.74 

4.27 

3.25 

1.75 

.97

19.54

Acre-feet

3, 180, 000 

3, 020, 000 

2, 930, 000 

2, 880, 000 

3, 850, 000 

3, 780, 000 

8, 630, 000 

19, 000, 000 

21, 800, 000 

16, 500, 000 

8, 920, 000 

4, 960, 000

99,400,000

KOOTENAI EIVER BASIN 

KOOTEJTAI RIVER AT LIB BY, MOITT.

LOCATION. In sec. 3, T. 30 N., R. 31 W., at highway bridge opposite Great 

Northern Railway station at Libby, in Lincoln County.

DRAINAGE AREA. 11,000 square miles.

RECORDS AVAILABLE. October 13, 1910, to September 30, 1925.

GAGE. Chain gage on left span of highway bridge; read by United States 

Forest Service.

DISCHARGE MEASUREMENTS. Made from highway bridge.

CHANNEL AND CONTROL. Channel probably permanent; broken by two piers. 

Bed of stream composed of small rocks; current fairly swift and uniformly 

distributed.

EXTREMES OF DISCHARGE. Maximum stage reported during year, 14.30 feet at 

noon May 23 (discharge, 77,300 second-feet); minimum stage, 2.50 feet 

March 21 (discharge, 3,550 second-feet).

1910-1925: Maximum stage, 19.17 feet June 21, 1916 (discharge, 130,000 

second-feet); minimum stage, 1.4 feet February 7, 1914 (discharge, 1,480 

second-feet).

ICE. Stage-discharge relation seriously affected by ice. No records during 

winter.

DIVERSIONS. None.

RE GULATION . None.

ACCURACY. Stage-discharge relation permanent except when affected by ice. 

Rating curve well defined between 2,500 and 40,000 second-feet. Gage 

read to hundredths once daily, except on Sundays or holidays. Record 

fragmentary October 25 to April 21. Daily discharge ascertained by applying 

daily gage height to rating table. Discharge interpolated for days of no gage 

height record. Records good for discharges below 40,000; others fair.

COOPERATION. Gage heights furnished by United States Forest Service.

No discharge measurements made during year. 

3223 29 6
76 SURFACE WATER SUPPLY, 1925, PART XII A

Daily discharge, in second-feet, of Kootenai River at Libby, Mont., for the year ending

September 30, 1925

Day

I....... 

2. 

5 

6- __ .....................

7. 

10 

11.-.. - 

1O

1«>

14 __ ___ 

15 

16 

17 

is

1Q

20 

 >i

22 

23 

24 

25. 

26 

O7

28 

29 _ ... 

30 

31 

Oct.

4,140

4,140

4,400

5,220

5,220

5,220

4,600

4,020

4,020

4,020

4,020

4,020

4,020

4,020

4,020

4,020

4,000

Nov.

4,140

Mar.

4,940

4,020

3,780

3,660

3,550

Apr.

18,700

17,800

17,300

16,800

16,100

15, 400

15,000

14,800

15,200

May

17,000

19,000

20,000

21, 100

21,900

23,000

25,200

28,200

29,200

29,000

28,800

28,800

32, 700

39,700

47,500

53,000

52,400

51,700

55,600

62,200

66,800

73,400

76,800

74,400

67,300

57,800

48,300

44,300

44,700

42,800

40,900

June

39,000

34,400

32,400

30,700

30,400

28,800

28,600

28,500

28,800

30,400

31, 400

32,000

33, 400

36,200

39,000

39,000

39, 700

41, 600

42,300

43, 500

43, 700

43, 900

45,100

44,300

42,000

37,500

36,100

36,000

35,800

35,100

July

32,000

38,800

27,000

25,800

23,800

21,900

21,100

20,800

19, 800

18,700

17,800

17,800

17,800

18,000

17,000

16,400

15,400

15,000

14,800

14,600

13,700

12,800

12,400

12,400

12,200

12,100

12,000

11,600

11,200

11,200

11,400

Aug.

11,600

11,400

11,200

11,200

11,000

10,600

10,000

9,650

9,290

8,920

8,920

8,740

8,570

8,230

8,570

9,280

10,000

9,840

9,650

9,650

9,280

8,920

8,920

8,920

8,570

8,230

7,560

7,230

6,910

6,750

6,590

Sept.

6,280

6,280

6,280

6,280

6,280

6,180

6,070

5,970

5,970

5,970

6,120

6,280

6,520

6,750

6,520

6,280

6,280

6,280

6,280

6,440

6,590

6,280

5,970

5,970

5,970

5,970

5,970

5,970

5,970

5,970

NOTE. Braced figures show estimated mean discharge for period indicated.

Monthly discharge of Kootenai River at Libby, Mont., for the year ending September 30, 1925

[Drainage area, 11,000 square miles]

Month

April 22-30 

July-- 

Discharge in second-feet

Maximum

5,220 

18, 700 

76,800 

45,100 

32,000 

11,600 

6,750

Minimum

4,000 

14,800 

17,000 

28,500 

11,200 

6,590 

5,970

Mean

4,320 

16,300 

42,700 

36,300 

17, 300 

9,170 

6,200

Per 

square 

mile

0.393 

1.48 

3.88 

3.30 

1.57 

.834 

.564

Run-off

Inches

0.45 

.50 

4.47 

3.68 

1.81 

.96 

.63

Acre-feet

266,000 

291,000 

2, 630, 000 

2, 160, 000 

1, 060, 000 

564,000 

369,000

CLARK FORK BASIN 

CLARK FORK NEAR PLAINS, MONT.

LOCATION. On lot 7, sec. 7, T. 19 N., R. 26 W., at Coopers Ferry, 3 miles above 

Plains, in Sanders County, and 7 miles below mouth of Flathead River.

DRAINAGE AREA. 19,900 square miles.

RECORDS AVAILABLE. October 28, 1910, to September 30, 1925.

GAGE. Stevens continuous recorder installed November 1, 1924; read by Mattie 

Monaghan. Prior to that date Barratt & Lawrence water-stage recorder at 

same site and datum.

DISCHARGE MEASUREMENTS. Made from cable about 500 feet above gage.

CHANNEL AND CONTROL. The river is deep, and the current is only moderately 

swift even at flood stages. The banks are high and are not overflowed. The 

channel probably acts as the control, as there is no defined control below gage
CLARK FORK BASIN 77

EXTREMES OF DISCHARGE. Maximum stage during the year, 16.55 feet at 8 a. m.

May 22 (discharge, 106,000 second-feet); minimum stage, 3.86 feet at 6.45

p. m. December 11 (discharge, 5,470 second-feet).

1910-1925: Maximum stage recorded, 17.9 feet June 5, 1913, and July 2,

1916 (discharge, 115,000 second-feet); minimum stage, 3.7 feet several times

during October and November, 1919 (discharge, 4,890 second-feet); lower

flow may have occurred during the ice periods. 

ICE. Stage-discharge relation seriously affected by ice. 

DIVERSIONS. Numerous diversions are made for irrigation from the headwaters

of Clark Fork and tributaries to Flathead River. 

REGULATION. Flathead Lake furnishes a natural but uncontrolled regulation for

part of the flow. 

ACCURACY. Stage-discharge relation affected by ice; otherwise permanent during

year. Rating curve well defined between 5,000 and 100,000 second-feet.

Gage heights obtained by inspection of recorder graph. Recorder visited

once each week by observer. Daily discharge ascertained by applying mean

daily gage height to rating table. Records good.

Discharge measurements of Clark Fork near Plains, Mont., during the year ending

September 30, 1925

Date

Nov. 1 - .....

Dec. 11--...--.

Gage 

height

Feet 

3.96

3.92

3.97

Discharge

Sec.-ft. 

5,710

5,770

5,870

Date

Apr. 7 . 

May 23- .... -

June 18.., ------

Gage 

height

Feet 

7.46

16.20

12.62

Discharge

Sec.-ft. 

21, 700

-107,000

63, 900

Date

Aug. 13.-. ..

height

Feet 

5.74

Discharge

Sec.-ft. 

12,800

0 Surface velocities taken over part of section on account of driftwood.

Daily discharge, in second-feet, of Clark Fork near Plains, Mont., for the year 

ending September SO, 1925

Day

1 ...... . ...... . - -

^.. .................................

^... ................................

^............... ....................

5 _ .... ___ .--.-..--....--...----

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

7 

8 

9 .

10 

11 __ . ____ .-......-.-. ___ ..---

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

n....... ............................

U... ................ ................

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

16 

17 

18 

19. 

20 

21...... ___ . _ ---..-----.-.--

22 

23 

^........ ...........................

25 

28 

27 

28 

29 

30 

31 

Nov.

6,000

6,320

6,320

6,460

6,660

6,660

6,760

6,660

6,590

6,760

6,840

6,840

6,940

6,560

6,540

6,940

6,630

6,560

6,940

6,560

6,700

6,870

7,190

7,410

7,410

7,330

7,120

6,940

6,630

6,350

Dec.

6,260

6,320

6,320

6,420

6,520

6,490

6,560

6,420

6,220

5,750

5,690

6,130

6,870

9,150

........

::::::::

Apr.

21, 600

22, 700

24,500

27, 000

30, 300

33, 900

35,500

40, 900

45, 000

47,300

49,200

51, 400

52,500

53, 400

53, 500

52,800

51,100

51, 800

50,600

47, 300

45, 900

45,000

44, ICO

44,100

May

44, 100

45, 900

48, 700

49,600

51,600

53,500

57,500

58, 600

59, 100

57,500

56,500

58,600

63,800

70, 100

74, 400

78,700

81,400

83, 500

87, 300

98, 000

103, 000

101, 000

99, GOO

95, 800

93,700

93, 100

93, 100

92, 100

June

89,400

87,800

84,600

82, 400

80, 300

77,100

75,000

71,200

69,600

69, 100

68,500

69, 600

68, 500

65,900

64,800

64, 300

63,800

67,500

fifi onfl

63,200

58, 600

July

56, 000

55, 500

53, 500

62, 200

48,700

46, 400

43,600

42,300

39, 600

37,100

35,500

33,900

32,800

30, 000

28,600

26,400

25,400

23,900

22,500

21, 100

20, 500

18,200

Aug.

18, 200

17,900

17, 400

16, 900

16, 700

16, 200

15, 900

15,700

15,500

14, 700

14, 300

13, 200 10 7nn

12,700

12,500

19 ^nn

12, 700

12,500

12,300

19 ^inn

19 nnn

12, 000

19 non

11, 600

11,400

Sept.

11,400

11,000

10, 800

10,800

10,800

10, 800

10,800

11,000

11,000

11,000

11,000

11,200

11,400

11, 400

11,000

11,200

11,200

n nnn

n fifin

10,800

10, 300

9,720

NOTE. No record Oct. 1-31 and Dec. 29 to Apr. 7. 

flow not computed.

Stage-discharge relation affected by ice Dec. 15-28;
78 SURFACE WATER SUPPLY, 1925, PART XII A

Monthly discharge of Clark Fork near Plains, Mont., for the year ending September SO, 1925

Month

December 1-14 ______ __________________

April 7-30 

July 

Discharge in second-feet

Maximum

7,410 

9,150 

53, 500 

104, 000 

89,400 

62,200 

18,200 

11,400

Minimum

6,000 

5,750 

21, 600 

44,100 

57,000 

18,200 

11,400 

9,720

Mean

6,750 

6,510 

42,600 

75,700 

69,400 

32, 600 

13,700 

10,900

Eun-ofl in 

acre-feet

402, 000< 

181, 000 

2, 030, 000 

4, 650, 000 

4, 130, 000 

2, 000, 000 

842, 000 

649,000

FEND OEEHLE LAKE AT HOPE, IDAHO

LOCATION. In lot 2, sec. 35, T. 57 N., R. 1 E. Boise meridian, at floating dock 

near Northern Pacific depot at Hope, Bonner County.

DRAINAGE AREA. 22,900 square miles. (Areas in United States measured on 

maps issued by United States Geological Survey; area of Flathead River 

Basin in British Columbia measured on Department of Lands map.)

RECORDS AVAILABLE. September 17, 1921, to September 30, 1925.

GAGE. Vertical staff in three sections on piles at floating dock; read by Capt. 

E. E. Moore and Capt. R. E. Smith. Zero of gage at elevation 2,048.88 

feet when referred to bench mark at Hope (described on p. 94, Bulletin 567,. 

United States Geological Survey). Zero of gage at elevation 2,045.67 

feet, United States Coast and Geodetic Survey datum.

EXTREMES OF STAGE. Maximum stage recorded during year, 19.7 feet on May 

29 and 30; minimum stage recorded, 1.70 feet on October 24, 25, and 27.

1922-1925: Maximum stage recorded, that of May 29 and 30, 1925; 

minimum stage recorded, 1.46 feet on January 9, 1924.

Crest elevation during flood in June, 1894, was 2,079.29 feet as determined 

by William Ashley who referred the height of the water to the United States 

Geological Survey bench mark at Hope, Idaho. This crest elevation is equivalent to a gage height of 30.41 feet on gage at Hope and of 33.71 feet on gage 

formerly used at Sandpoint, when referred to bench mark described on page 

94, Bulletin 567, United States Geological Survey.

ICE. Ice conditions not serious at this station.

DIVERSIONS. Considerable water diverted from tributaries of Clark Fork for 

irrigation.

REGULATION. None.

ACCURACY. Gage read to hundredths once on each day for which gage height is 

shown.

Daily gage height, in feet, of Pend Oreille Lake at Hope, Idaho, for the year ending

September 30, 1925

Day

2 _ ....... _ .

4.... ....

5 

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

7... .....

8 .... ....

Q

10 

11 - 

TO

14...... ....

15 

Oct.

1.78

1.80

1.78

1.76

1.80

1.78

1.76

1.76

Nov.

1.82

1.88

2.04

2.02

2.00

1.98

Dec.

2.00

2.00

2.00

1.98

1.98

9 fin

2.02

Jan.

2.76

2.92

2.92

2.92

2.90

2.84

2.84

Feb.

A AC.

4.60

A AC

4.65

4.60

Mar.

3.85

3.80

3.85

3.85

3.75

3.75

Apr.

4.20

4.35

4.55

4.60

5.35

5.65

6.10

6.40

6.90

8.05

8.70

9.15

May

12.20

12.30

12.40

12.60

12.80

13.15

13.50

13.65

13.80

14.25

June

19. 65

19.50

19.40

19.20

19.15

18.85

18.30

18.15

17.40

17.15

16.90

16.40

July

14.05

13.85

13.70

13.50

13.00

12.70

12.50

12.25

11.90

11.55

11.00

10.65

10.35

Aug.

6.45

5.90

5.80

5.65

5.50

5.35

5.10

5.00

4.90

4.50

Sept.

3.40

3.35

3.35

3.30

3.22

3.10

3.08

3.05

3.00

2.98
CLAEK FORK BASIN 79

Daily gage height, in feet, of Pend Oreille Lake at Hope, Idaho, for the year ending 

September 30, 1925 Continued

Day

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

17 . 

18.... ......

19 .. ..

20-... ......

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

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

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

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

25. ......

26 __ ... _ ....

27

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

29 .......

30..-. ......

31. ......

Oct.

1.74

1.74

1.74

1.74

1.74

1.74

1.70

1.70

-TTiT

1.72

1.78

Nov.

1 98

1.96

2.02

2.02

2.02

2.02

Dec.

9 XiA

9 ft9

9 fifl

2.60

2.58

9 fin

2,60

2.60

9 fin

2.64

2.68

2.70

Jan.

2.82

2

*70

9 an

2.82

2.82

2.84

2.86

2.86

2 on

Feb.

4.40

A Qfl

4.05

4 00

3.95

3 on

Mar.

3.65

3.60

3 fin

3

KC

3.55

3.50

0 Kfk

3.65

3

7C

3.80

4.00

4.10

Apr.

10.50

11 40

11.70

11.85

12.00

12.05

12.25

10 9^

12.20

12.15

May

14.75

15.50

16.00

17.10

17.65

18.30

19.10

19.30

19.50

19.60

19.70

19.70

June

16.10

15.65

15.20

15.10

15.00

14.95

14.80

14.40

14.20

July

10.05

9.45

9.20

8.95

8.65

8.45

8.15

7.95

7.75

7.35

7.15

6.95

6.75

6.60

Aug.

i~30

4.20

4.15

4.10

4.05

400

3.90

3.80

3.75

3.70

3.60

3.50

Sept.

2.94

2.90

2.88

2.84

2.82

2.82

2.82

2.82

2.74

2.70

2.65

CLARK FORK AT METAIIWE FAILS, WASH.

LOCATION. In SE. % sec. 21, T. 39 N., R. 43 E., three-eighths of a mile above 

Metaline Falls, opposite town of Metaline Falls, Pend Oreille County, and 

11 miles south of the international boundary.

DRAINAGE AREA. 25,100 square miles. (Areas in United States measured on 

maps issued by United States Geological Survey; area of Flathead River 

Basin in British Columbia measured on Department of Lands map; area of 

Priest River Basin in British Columbia measured on Nelson sheet, British 

Columbia map.)

RECORDS AVAILABLE. November 4, 1908, to September 4, 1910 (gage heights 

only; data insufficient for determination of discharge); October 1, 1912, to 

September 30, 1925.

GAGE. Vertical and inclined staflf on right bank, three-eighths of a mile above 

the falls; installed December 10, 1916; read by Willis Pugh.

DISCHARGE MEASUREMENTS. Made from cable at gage. Flow of Sullivan 

Creek added to flow measured at cable.

CHANNEL AND CONTROL. Banks high and not subject to overflow. Sensitive 

and practically permanent control formed by Metaline Falls, the drop over 

which is 20 feet in a distance of 1,200 feet. Elevation, water surface at 

medium low stage, 1,970 feet above sea level.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 34.0 feet 

May 29 to June 3 (discharge, 114,000 second-feet); minimum stage recorded, 

0.95 foot December 18 (discharge, 6,600 second-feet).

1912-1925: Maximum stage recorded, 41.2 feet June 16, 1913 (discharge, 

139,000 second-feet); minimum stage recorded, 2.4 feet December 12, 

1919 (discharge, 2,500 second-feet).

Maximum stage at Newport (900 square miles less drainage area), independently determined from three separate high water marks left by the 

flood in June, 1894, 38.9 feet (discharge, 217,000 second-feet), estimated 

by extending the rating curve.

ICE. Stage-discharge relation not affected by ice.

DIVERSIONS. Numerous diversions from upper tributaries for irrigation.

REGULATION. None.

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

defined above 8,000 second-feet. Gage read to hundredths once daily. No 

diurnal fluctuation. Daily discharge ascertained by applying daily gage 

height to rating table. Records excellent.
80 SURFACE WATER SUPPLY, 1925, PART XII A

COOPERATION. Station maintained in cooperation with Dominion Water Power 

and Reclamation Service, Department of the Interior, Canada. Gage 

height record furnished by Hugh L. Cooper Co.

The following discharge measurements were made: 

May 27, 1925: Gage height, 33.35 feet; discharge, 110,000 second-feet. 

September 14, 1925: Gage height, 5.38 feet; discharge, 12,000 second-feet. 

September 15, 1925: Gage height, 5.30 feet; discharge, 14,000 second-feet.

Daily discharge, in second-feet, of Clark Fork at Metaline Falls, Wash., for the 

year ending September SO, 1926

Day

1 ........ .

2_. ....... ...

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

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

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

6.__. ....... .

7 . .....

8. .......

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

10.-. ...... ..

11 

12 

13 

14 ...... .

15 .

16 ..

17 .

18 .......

19 .........

20 ......

21 

22 

23 

24 

25 

26 

27 

28

29 

30 

31 

Oct.

8,080 

7,940 

7,810 

7,810 

7,810

7,940 

7,810 

7,810 

7,680 

7,680

7,940 

7,940 

7,810 

7,940 

7,940

7,940 

7,810 

7,810 

7,810 

7,810

7,810 

7,810 

7,810 

7,940 

7,810

7,810 

7,810 

7,940 

8,220

8,360 

8,360

Nov.

8,360 

8,360 

8,500 

8,650 

9,100

8,950 

9,250 

9,550 

9,250 

9,400

9,400 

9,250 

9,400 

9,250 

9,100

9,100 

8,950 

9,100 

9,250 

9,250

9,250 

9,250 

9,400 

9,250 

9,250

9,250 

9,250 

9,250 

9,250

9,250

Dec.

9,400 

9,400 

9,400 

9,250 

9,250

9,250 

9,250 

9,100 

9,100 

8,950

9,250 

9,550 

9,250 

9,550 

9,850

9,550 

10,800 

6,600 

6,720 

8,650

8,360 

8,500 

7,440 

7,080 

7,680

8,360 

8,950 

10,200 

10,200

10, 300 

10,500

Jan.

10,600 

10,800 

10,600 

10,800 

10, 600

11,500 

11,300 

11,200 

11,500 

11,900

12,200 

12,200 

11,900 

12, 600 

11, 700

11, 300 

12,200 

12, 200 

12, 400 

12,600

14,000 

13,700 

13,000 

13, 000 

12,400

12,200 

12,800 

12,600 

13, 000

12,800 

12, 800

Feb.

13, 100 

13,100 

14,800 

16,400 

17, 700

18, 800 

20,400 

21,300 

22,400 

21,500

21,900 

21,900 

21, 900 

21, 000 

20,400

19, 300 

18,900 

19,600 

19, 100 

18, 700

18,700 

18,300 

18,700 

19, 100 

18, 700

18,900 

18, 700 

18,500

.......

.......

Mar.

18, 500 

18, 900 

18,500 

18,500 

18,100

18,300 

18, 500 

18, 300 

18,100 

18, 100

17, 700 

17, 700 

17, 400 

17,400 

17,200

16, 600 

16, 400 

16,400 

16,400 

16, 400

16,200 

16,200 

16,000 

16,200 

16,400

16, 000 

16, 800 

17,200 

17,400 

18, 100 

18, 500

Apr.

18, 700 

19, 300 

19,800 

20,600 

21,500

22, 400 

22, 800 

24,600 

26,200 

28,300

30, 400 

33, 100 

35, 100 

37, 900 

40,800

44, 300 

47, 300 

49, 600 

53,000 

55,400

57,900 

60,000 

60, 800 

62,100 

62, 100

62,900 

63, 800 

64, 200 

64,200 

64,200

May

63,800 

63,400 

63,400 

63, 800 

63, 800

64, 600 

65,000 

66,300 

67, 100 

68,800

70,600 

71, 500 

72,400 

73, 800 

75, 100

76,400 

80,500 

82,400 

85, 100 

87, 000

91,800 

95,600 

98,600 

103, 000 

106, 000

109, 000 

111,000 

112,000 

114, 000 

114, 000 

114, 000

June

114,000 

114, 000 

114,000 

113,000 

112, 000

111,000 

110, 000 

107, 000 

106, 000 

104,000

101, 000 

99, 600 

97, 600 

96,100 

94,200

92,700 

90, 300 

88, 900 

86, 600 

85,600

84,200 

82,400 

82, 800 

82, 400 

81, 400

81,400 

80, 500 

79, 600 

79,200 

78, 700

July

76,900 

75, 100 

74,200 

73, 300 

71, 500

70,600 

69, 700 

67,100 

65, 500 

63, 800

62,500 

62,100 

60,800 

55, 400 

52,200

51,900 

50, 000 

49, 600 

46, 600 

44,300

43, 000 

41, 700 

40, 200 

38,400 

37,300

36,700 

35, 100 

34,400 

33, 100 

31, 100 

30,200

Aug.

29,700 

29,500 

28,700 

27, 500 

26,800

26,200 

25,200 

24,600 

24,100 

23, 500

22, 800 

22,400 

21,700 

21,000 

20,400

20,000 

19,600 

18,900 

18, 700 

18, 500

18, 100 

17,700 

17,200 

16, 800 

16, 600

16,400 

16,200 

16,000 

16, 000 

15, 800 

15,400

Sept.

15,000 

14,800 

14, 600 

14,400 

14,400

14,000 

14, 000 

14,200 

14,000 

13, 700

13,300 

13,100 

13,300 

13, 30a 

13, 100

12,800 

12, 800 

12, 600 

12, 600 

12,600

12, 400 

12,200 

12, 200 

12, 200 

12,200

12, 100 

12, 100 

12,200 

12,200 

12,200

Monthly discharge of Clark Fork at Metaline Falls, Wash., for the year ending

September SO, 1925

[Drainage area, 25,100 square miles]

Month

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

May _____________________

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

September ___ .. ___ ... ___ ......

Discharge in second-feet

Maximum

8,360 

9,550 

10, 800 

14,000 

22,400 

18, 900 

64,200 

114, 000 

114, 000 

76,900 

29,700 

15,000

114,000

Minimum

7,680 

8,360 

6,600 

10, 600 

13, 100 

16,000 

18,700 

63, 400 

78,700 

30,200 

15,400 

12,100

6,600

Mean

7,900 

9,140 

9,020 

12, 100 

19, 000 

17, 400 

42,400 

83, 700 

95, 000 

53, 000 

21,000 

13,200

31, 900

Per 

square 

mile

0.315 

.364 

.359 

.482 

.757 

.693 

1.69 

3.33 

3.78 

2.11 

.837 

.526

1.27

Run-off

Inches

0.36 

.41 

.41 

.56 

.79 

.80 

1.89 

3.84 

4.22 

2.43 

.96 

.59

17.26

Acre-feet

486, 000 

544, 000 

555, 000 

744,000 

1, 060, 000 

1, 070, 000 

2, 520, 000 

5, 150, 000 

5, 650, 000 

3, 260, 000 

1, 290, 000 

786, 000

23, 100, 000
CLARK FORK BASIN 81

ROCK CREEK NEAR QUIGIEY, MONT.

LOCATION. In SW. ^ sec. 36, T. 10 N., R. 17 W. (unsurveyed), at highway 

bridge one-fourth mile above mouth of Ranch Creek and 2J^ miles south 

of Quigley, Granite County.

DRAINAGE AREA. 772 square miles (measured on topographic map).

RECORDS AVAILABLE. May 1, 1922, to September 30, 1925, at present site; 

September 22, 1910, to November 17, 1912, at a site below mouth of Ranch 

Creek.

GAGE. Standard wire and weight on downstream side of highway bridge; read 

by Ed. Shaughnessy.

CHANNEL AND CONTROL. Bed composed of heavy boulders. Two channels at 

high stages. Control is bed of stream for several hundred feet below gage; 

probably permanent.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 4.94 feet; May 

21 and 22 (discharge, 3,540 second-feet); minimum stage, 1.00 foot December 17 (discharge, 115 second-feet).

1922-1925: Maximum stage recorded, 6.32 feet June 5, 1922 (discharge, 

6,260 second-feet); minimum stage that of December 17.

ICE. The stage-discharge relation is seriously affected by ice during the period 

December 18 to February 24, and discharge is based upon the measurements made during the period and a study of the temperature, precipitation, and observer's notes on ice.

DIVERSIONS. None of importance.

REGULATION. None.

ACCURACY. Stage-discharge relation not permanent; affected by ice and by 

change of control. Two rating curves used during year; one applicable for 

November 17 to February 24 is well defined between 150 and 3,500 secondfeet; the other, applicable February 25 to September 30, is well defined 

between 145 and 3,500 second-feet. Gage read to hundredths once daily. 

Daily discharge, except during ice-affected period, ascertained by applying 

daily gage height to rating table. Records good for open channel; fair for 

ice periods.

COOPERATION. Maintained in cooperation with Rock Creek Power Co.

Discharge measurements of Rock Creek near Quigley, Mont., during the year ending

September SO, 1925

Date

Dec. 22.........

Jan. 9 _ . ......

Jan. 22.. _ . ...

Gage 

height

Feet 

03.40

03.00

o2.70

Discharge

Sec.-ft. 

166

217

170

Date

Feb. 14... ......

Feb. 24.. .......

Apr. 10 _ ......

Gage 

height

Feet 

o2.68

ol.94

2.36

Discharge

Sec.-ft. 

153

151

477

Date Gage 

height

Feet 

3.33

Discharge

Sec.-ft. 

1,190

1 Stage-discharge relation aflected by ice.
82 SURFACE WATER SUPPLY, 1925, PART XII A

Daily discharge, in second-feel, of Rock Creek near Quigley, Mont., for the year 

ending September 30, 1925

Day

1 __ . _____ ......

2 ________ . _ ......

3 

4 _________ .. __ ..

5 _________ ........

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

7... _ ................

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

9 _ . __ ..............

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

11 __ ..................

12 ____ . __ ........

13 ____ . _ ..........

14 __ .. -........___

15.. . .

16 ___ .................

17 __ . _ ...............

18... _ . _ ............

19 __ . __ ..............

20 __ ...................

21 __ ...................

22 __ ..................

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

24 __ . .. _ ..........

25 __ ...................

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

27 ____ ................

2S-_ .. ._

29 ___ ...... ___ .....

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

31 _ ....... _ . __ ....

Nov.

182

187

187

213

213

240

235

229

203

182

182

192

182

Dec.

177

182

203

203

182

177

177

167

162

160

203

351

345

293

287

133 !

115 :

115 

115

115

140

160

160 111?

115

115

115

115

130

150 i fit\

Jan.

200

190

170

Feb.

185

279

261

237

Mar.

221

201

192

178

323

273

232

226

192

178

170

174

156

152

161

156

148

148

148

156

206

216

267

216

211

206

211

216

255

273

267

Apr.

285

291

298

317

323

330

323

343

364

455

482

750

765

735

795

858

1,060

1,080

988

922

890

826

890

826

810

795

735

693

693

721

May

810

906

1,020

1,120

1,200

1,300

1,530

1,650

1,530

1,410

1,350

1,530

2,060

2,210

2,680

2,850

2,680

3,020

3,190

3,360

3,540

3,540

3,350

3,190

3,020

2,850

2,520

2,360

2,360

2,520

9 P\9f\

June

2,520

2,360

2,360

2,210

2,060

2,060

1,920

1,920

1,920

2,060

1,920

1,780

1,650

1,650

1,530

1,530

1,530

1,530

1,530

1,600

1,730

1,600

1,370

1,260

1,160

997

997

997

997

1,090

July

1,090

1,190

1,090

997

834

758

700

588

535

486

435

427

419

404

382

360

354

354

340

320

301

320

333

320

313

313

307

294

313

301

288

Aug.

282

288

288

282

282

270

252

252

246

248

246

241

241

252

282

258

258

252

252

234

229

224

229

229

208

204

194

214

204

198

Sept .

189

189

181

181

176

194

198

224

224

204

198

185

185

185

185

185

185

185

208

204

198

194

185

185

181

181

185

194

204

208

NOTE. Braced figures show estimated mean discharge for periods indicated. No record Oct. 1 to 

Nov. 16.

Monthly discharge of Rock Creek near Quigley, Mont., for the year ending September 30, 1925 

[Drainage area, 772 square miles]

Month

November 17-30 ______

December. _____________ __

January ______________ .......

February. ______________ ...

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

April. . _ . . .

July . .... . .

August ________________

September _________________

The period _ _______ . ...

Discharge in second-feet

Maximum

240 

351

323 

1,080 

3,540 

2,520 

1,190 

288 

224

3,540

Minimum

182 

115

148 

285 

810 

997 

288 

194 

176

115

Mean

201 

172 

186 

179 

204 

655 

2,230 

1,660 

499 

243 

193

606

Per 

square 

mile

0.260 

.223 

.241 

.232 

.264 

.848 

2.89 

2.15 

.646 

.315 

.250

.785

Run-off

Inches

0.14 

.26 

.28 

.24 

.30 

.95 

3.33 

2.40 

.74 

.36 

.28

9.04

Acre-feet

5,580 

10,600 

11,400 

9,940 

12,500 

39,000 

137,000 

98,900 

30,700 

14,900 

11,500

382, 000

RANCH CREEK NEAR QUIGLEY, MONT.

LOCATION. In NE. H sec. 36, T. 10 N., H. 17 W. (unsurveyed), one-fourth mile 

above mouth and 2J^ miles south of Quigley in Granite County.

DRAINAGE AREA. 42.7 square miles (measured on topographic map).

RECORDS AVAILABLE. May 2, 1922, to September 30, 1925.

GAGE. Vertical staff with enamel face on right abutment of highway bridge; 

read by Mrs. C. H. Hamm and Ed. Shaughnessy.

DISCHARGE MEASUREMENTS. Bed composed of cobblestones. Control is riffle 

20 feet below gage, subject to slight shifts. One channel at all stages.
CLARK FORK BASIN 83

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 1.22 feet

May 21 and 22 (discharge, 145 second-feet); minimum discharge estimated,

15 second-feet December 9.

1922-1925: Maximum stage, 1.50 feet May 19 and 20, 1922 (discharge,

238 second-feet); minimum discharge, 10.7 second-feet February 1, 1924. 

ICE. Stage-discharge relation affected by ice. 

DIVERSIONS. None of importance. 

REGULATION. None. 

ACCURACY. Stage-discharge relation permanent during year except for short

periods affected by ice on control. Gage read to hundredths once daily.

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

Records good except for periods affected by ice for which they are fair. 

COOPERATION. Gage heights and some discharge measurements furnished by the

Rock Creek Power Co.

Discharge measurements of Ranch Creek near Quigley, Mont., during the year 

ending September 80, 1925

Date

Dec. 22 ...

Jan. 22- .

Gage 

height

Feet 

 0.90

.62

.62

Discharge

Sec.-ft. 

20.0

18.5

20.1

Date

Feb. 14 

Feb. 28 

Apr. 10 

Gage 

height

Feet 

"0.64

.60

.86

Discharge

Sec.-ft. 

15.9

19.4

45.7

Date Gage 

height

Feet 

0.96

Discharge

Sec.-ft. 

66.8

0 Stage-discharge relation affected by ice.

Daily discharge, in second-feet, of Ranch Creek near Quigley, Mont., for the year 

ending September SO, 1925

Day

1 _ ._ _ . _______

2 _ _-_ .......

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

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

5 _ _._ _...._.

6.-.... ............ .

7--...-.-.. ........

8

9

10- 

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

12... ...... _ ..........

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

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

15---......--..........

16- ..........

17. . 

18- 

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

20- ..

21-- 

22-- 

23- 

24.. . 

25__ .................

26- 

27 __ ...................

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

29- .

30-_. ................

31 _ ...................

Nov.

25

25

25

97

25

25

24

22

22

27

27

27

Dec.

25

*)K

22

22

99

99

19

17

15

25

25

25

25

27

25

99

22

99

91

91

20

20

25

25

94

22

20

20

99

21

Jan.

19

19

19

19

19

19

19

18

19

18

18

18

18

19

18

18

18

18

18

18

19

19

19

19

19

18

18

18

18

19

19

Feb.

19

19

19

21

21

91

21

21

19

19

18

17

16

16

19

19

18

18

18

18

18

18

18

18

18

18

18

18

Mar.

18

18

18

19

19

21

21

19

19

21

21

19

21

21

19

19

18

18

18

19

19

19

21

21

21

21

22

249";

259";

Apr.

25

27

27

32

34

34

34

36

43

46

53

73

73

73

78

84

101

101

78

78

73

73

78

73

73

73

73

73

68

68

May

73

78

78

84

90

84

90

95

90

90

90

95

113

126

138

138

132

138

138

138

145

145

138

132

132

126

126

107

107

107

107

June

101

95

95

95

90

90

90

84

84

84

78

78

78

78

78

78

78

78

84

84

78

78

73

73

73

68

68

68

68

68

July

68

76

68

58

58

,58

58

53

53

50

50

50

36

46

46

43

39

39

36

36

34

36

36

36

36

34

34

34

35

36

34

Aug.

34

36

36

34

34

34

34

34

34

32

32

32

34

34

34

34

34

34

34

32

32

32

32

32

32

32

32

34

32

32

32

Sept.

32

32

32

32

29

29

29

32

32

29

29

27

27

27

27

27

27

27

27

27

27

27

25

25

25

25

25

27

27

25

NOTE. Stage-discharge relation affected by ice Dec. 8-10,16-22, 27, 28, and Feb. 11-14; daily discharge 

computed from discharge measurements, observer's notes, and temperature records.
84 SURFACE WATER SUPPLY, 1925, PART XII A

Monthly discharge of Ranch Creek near Quigley, Mont., for the year ending

September 80, 1925

[Drainage area, 42.7 square miles]

Month

November 17-30 _____________ ....

January ___________________

March ___________________

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

May ____________________

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

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

Discharge in second-feet

Maximum

27 

27 

19 

21 

25 

101 

145 

101 

76 

36 

32

146

Minimum

22 

16 

18 

16 

18 

25 

73 

68 

34 

32 

25

16

Mean

25.1 

22.2 

18.5 

18.6 

20.3 

61.8 

112 

80.6 

45.4 

33.2 

27.9

43.3

Per 

square 

mile

0.688 

.620 

.433 

.436 

.476 

1.46 

2.63 

1.89 

1.06 

.778 

.513

1.01

Run-off

Inches

0.31 

.60 

.50 

.46 

.66 

1.62 

3.03 

2.11 

1.22 

.90 

.57

11.86

Acre-feet

697 

1,360 

1,140 

1,030 

1,250 

3,680 

6,890 

4,790 

2,790 

2,040 

1,660

27,300

FLATHEAD LAKE AT SOMERS, MONT.

LOCATION. In NE. M sec. 26, T. 27 N., R. 21 W., at steamboat dock at Somers,

Flathead County.

RECORDS AVAILABLE. April 25, 1922, to September 30, 1925. 

GAGE. Stevens water-stage recorder in wooden shelter, referenced to staff gage

in well set at sea-level datum. 

EXTREMES OP STAGE. Maximum stage recorded during year, 2,894.40 feet at

4.30 p. m. May 28; minimum stage, 2,882.2 feet at 11 a. m. November 3. 

1922-1925: Maximum stage, that of May 28, 1925; minimum stage,

2,882.0 feet December 6-12, 1923. 

ACCURACY. Records fragmentary.

Daily gage height, in feet, of Flathead Lake at Somers, Mont., for the year ending

September SO, 1925

Day

1 ...

2 

3......

4......

5 ......

6 

7 

8......

9......

10......

11 .

12 __ ..

13......

14 _ ...

16......

Oct.

82.5

82.5

82.6

82.4

82.46

82.46

82.46

82.4

82.4

82.4

82.4

82.4

82.4

82.35

Nov.

82.3

82.3

82.25

82.36

82.36

82.35

82.4

82.4

82.4

82.4

82.4

82.35

82.35

82.36

82.35

Apr.

84.8

85.0

85.35

85.75

86.3

86.85

87.25

May

88.3

88.3

88.35

88.45

88.55

88.7

88.76

88.85

89.1

89.35

89.4

89.45

89.6

89.75

90.0

June

93.8

93.6

93.4

93.2

93.05

no 7

92.4

92.15

92.0

91.9

91.7

91.6

91.45

91.35

91.3

Aug.

84.4

84.45

i

Day

16- 

17 

18 

19 

20 

91

22. 

23 

24.....

26 

26 

27 

28.....

29 

30 

31 

Oct.

82.3

82.3

82.3

82.3

82.3

82.3

82.3

82.3

82.3

82.25

82.25

82.25

82.25

Nov.

89 i

82.4

82.4

82.4

82.4

CO A

82.4

82.4

82.4

82.4

82.4

82.4

82.4

Apr.

87.25

87.8

88.15

88.4

88.65

88.8

88.76

88.8

88.85

88.8

88.75

88.65

88.55

88.45

88.35

May

90.4

90.85

91.2

91.6

91.8

92.16

92.6

93.2

93.6

93.8

94.0

94.05

93.95

93.9

94.0

93.95

June

91.2

91.1

91.1

91.1

Aug.

84.35

84.3

84.3

843

84.3

84.25

NOTE. Add 2,800 feet to reduce to sea level. No record Oct. 1, 29-31, Nov. 

Aug. 13, and Aug. 22 to Sept. 30.

to Apr. 9, June 20 to
CLARK FORK BASIN 85

F1ATHEAD LAKE AT POISON, MONT.

LOCATION. In SE. % sec. 4, T. 22 N., R. 20 W., at steamboat dock at south end

of lake at Poison, Lake County.

RECORDS AVAILABLE. August 23, 1908, to September 30, 1925. 

GAGE. Stevens water-stage recorder in wooden shelter installed April 23, 1922,

and referenced to staff gage in well set to sea-level datum. 

EXTREMES OF STAGE. Maximum stage recorded during year, 2,894.3 feet at 5.30

p. m. May 28; minimum stage, 2,881.7 feet on January 20.

1908-1925: Maximum stage recorded, 2,895.7 feet July 1, 2, and 4, 1916;

minimum stage, 2,881.5 feet February 16-22, 1913. 

ACCURACY. Records reliable but fragmentary.

Daily gage height, in feet, of Flathead Lake at Poison, Mont., for the year ending

September 30, 1925

Day

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

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

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

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

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

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

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

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

9 . . _.

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

11. _ ...............

12............ ___ ..

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

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

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

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

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

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

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

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

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

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

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

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

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

126..... ...........

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

28............ , _

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

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

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

Oct.

82.35

82.4

82.5

82.5

QQ C

82.45

82.4

82.5

82.6

82.45

82.35

82.4

82.45

82.45

82.4

82.4

82.4

QO A

82.35

82.35

82.4

82.35

82.3

82.35

82.3

82.3

82.3

82.3

82.3

QO q

Nov.

82.3

82.3

82.3

82.2

82.25

82.25

82.2

82.2

82.3

82.25

82.35

82.4

82.25

82.25

82.2

82.3

82.3

82.3

82.3

82.3

82.35

82.3

82.35

82.3

82.35

82.4

82.35

82.35

82.3

Dec.

82.3

82.3

82.3

82.3

82.3

82.35

82.3

82.35

82.3

82.3

82.2

82.1

82.15

82.3

83.0

83.65

83.5

83.5

83.4

83.4

83.5

83.5

83.55

83.45

83.4

83.4

83.4

83.4

83.4

83.4

QO K

Jan.

83.4

83.4

83.5

83.5

83.5

83.3

83.3

83.3

83.3

83.35

83.3

83.3

83.3

81.75

81.7

Apr.

84.5

84.7

84.9

85.3

85.5

86.1

86.7

87.2

87.4

87.7

88.0

88.3

88.5

88.6

88.6

88.65

88.6

88.6

88.6

88.5

88.4

88.3

88.25

May

88.2

88.3

88.4

88.5

88.7

88.8

93 4

93.5

03 Q

94.0

93.8

June

90.95

91.0

91.0

91.1

91.2

91.2

91.2

91.2

01 1

90.95

90.8

90.7

90.6

July

90.5

90.4

90.1

89.8

89.6

89.4

89.2

88.9

Aug.

84.4

84.3

84.2

84.3

84.4

84.4

84.4

84.4

84.3

84.3

84.3

84.25

84.25

84.25

84.2

84.1

84.1

84.1

84.1

84.0

Sept.

84.0

84.0

84.0

83.9

83.9

83.9

82.8

83.7

83.7

83.7

83.7

83.7

83.7

83.65

83.6

83.6

83.6

83.65

83.8

83.65

83.6

83.6

83.6

83.6

83.6

83.65

83.5

83.5

83.5

83.5

NOTE. Add 2,800 feet to reduce to sea level. No record Oct. 1, Dec. 15-18, Dec. 21 to Apr. 8, May 7-23, 

May 29 to June 18, and July 9 to Aug. 11. Elevations probably affected by backwater from ice on Flathead River at lake outlet, Dec. 14 to Jan. 14.

FIATHEAD EIVER NEAE POISON, MONT.

LOCATION. In sec. 19, T. 22 N., R. 21 W., on highway bridge at Norrisvale, 

5 miles below Newell Tunnel, 15 miles northwest of Ronan, and 12 miles 

below Poison, Lake County.

DRAINAGE AREA. 7,010 square miles.

RECORDS AVAILABLE. July 23, 1907, to September 30, 1925.

GAGE. Chain gage on upstream side of bridge; read by Mrs. J. Wigen.

DISCHARGE MEASUREMENTS. Made from highway bridge at gage.

CHANNEL AND CONTROL. Control premanent. Current fairly swift. Banks 

high.
86 SURFACE WATER SUPPLY, 1925, PART XII A

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 15.02 feet at 

8 a. m. on May 25 and 26 (discharge, 67,300 second-feet); minimum stage, 

1.84 feet October 9 (discharge, 3,060 second-feet).

1907-1925: Maximum stage recorded, 16.4 feet June 13, 1913 (discharge,. 

75,400 second-feet); minimum stage recorded, 0.1 foot December 9-14r 

1919, and March 14, 1920 (discharge, 1,360 second-feet).

ICE. Stage-discharge relation not seriously affected by ice.

DIVERSIONS. Several diversions from tributaries above Flathead Lake.

REGULATION. Flathead Lake forms a natural regulation.

ACCURACY. Stage-discharge relation permanent during year. Rating curve 

well defined between 2,000 and 70,000 second-feet. Gage read to hundredths 

once daily. Daily discharge ascertained by applying daily gage height 

to rating table except for December 7-13 and August 22-28, when discharge 

was interpolated. Records good.

The following discharge measurements were made: 

April 9, 1925: Gage height, 5.58 feet; discharge, 11,300 second-feet. 

May 26, 1925: Gage height, 15.04 feet; discharge, 65,200 second-feet. 

August 13, 1925: Gage height, 5.16 feet; discharge, 9,120 second-feet.

Daily discharge, in second-feet, of Flathead River near Poison, Mont., for the year 

ending September, 30, 1925

Day

1 ._.._. .

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

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

4 ___ . ___

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

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

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

8........

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

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

11 - __

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

13...... . .

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

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

16 ...._....__

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

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

19......

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

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

22......

23...... .

24........

25. _ ........

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

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

28........

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

30....

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

Oct.

3,320

3,190

3,190

3,130

3,130

3,130

3,130

3,080

3,080

Q ion

3,130

3,130

3,130

3,320

3,320

3

ocn

3,250

3,130

3,320

3,320

3,250

3,250

3,250

3,190

3,190

3,190

3,190

3,190

3,130

3,130

Nov.

3,250

3,130

3,190

3,190

3 inn

3,190

3,320

3 O flft

3,190

3,130

3,130

3,130

3

ocn

3,250

3

O Eft

3,130

3,250

3,190

3,190

3,190

3,190

3,190

Dec.

3,190

Q ion

3,130

3,130

Q 19ft

3,130

3,160

3 1 Sfl

3 1 on

3,130

3,130

3 1 Qft

3 1 on

q iqft

3,130

3,130

3,190

3 inn

3,250

3,250

3,190

3,190

Mar.

4,750

4,760

4,840

A QQft

4,930

4,930

A 7KA

4,840

4,660

4,580

4,580

4,420

4,580

4,580

4,750

4,750

4,930

4,020

5,110

Apr.

5,700

6,120

6,340

7 9nft

7,740

10, 000

11, 000

19 inn

14, 100

15, 400

on Qfln

24 700

Ofl QAA

28,000

29,200

32, 700

32, 100

32, 100

01 cnn

31, 500

30,300

30, 300

May

29,200

30, 300

30,900

32,100

33, 300

34, 500

35, 100

36, 300

36, 300

36,900

38, 800

41,300

43,200

47, 700

49,000

54,400

64,100

65, 600

67, 000

66, 300

59,900

06, 300

June

65,600

60,600

59, 200

57, 800

55, 700

54,400

51, 700

50, 400

49,000

47, 100

46, 400

4ft 4ftft

45, 800

46, 400

46, 400

47,100

47, 100

47, 700

Af\ Af}(\

46, 400

45, 800

45, 800

45, 100

45, 100

July

45,800

47,100

45,100

36, 300

35, 700

34, 500

30,900

28, 600

27, 400

26,900

26, 300

25, 200

22, 500

22,000

20, 900

20, 200

19, 500

18,800

17, 500

16, 800

15, 100

15, 400

15, 400

15, 400

Aug.

14,600

13,300

13, 300

12, 500

12, 100

11, 700

11, 000

10,700

10,300

10, 300

9,710

9,120

9,410

9, 120

9,120

9,120

9,120

9,120

9,120

9,120

9,120

9,120

8,830

8,550

8,550

8,550

Sept.

8,270

8,000

7,740

7,740

7,740

 ', 

7,490

7,250

7,250

7,250

7,250

7,010

7,010

6,780

6,780

6,560

6,340

6,120

5,910

5,700

5,800

5,300

5, 300

5,300

5,300

5,300

5,300

5,300

5,300

5,300

5,300

NOTE. No record Jan. 1 to Mar. 7.
CLARK FORK BASIN 87

Monthly discharge of Flathead River near Poison, Mont., for the year ending September 80, 1925

[Drainage area, 7,010 square miles]

Month

October ___________________

March 8-31. ______ __ _____ __

June _ ...................................

July -_..-.-.__ ___..... _._ __.

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

Discharge in second-feet

Maximum

3,320 

3,320 

3,250 

5,110 

32,700 

67, 000 

65, 600 

47,100 

14, 600 

8,270

Minimum

3,080 

3,130 

3,130 

4,020 

5,700 

29, 200 

45,100 

15,400 

8,550 

5, 300

Mean

3,190 

3,200 

3,170 

4,740 

20,800 

46,700 

50, 700 

27, 100 

10,400 

6,420

Per 

square 

mile

0.455 

.456 

.452 

.676 

2.97 

6.66 

7.23 

3.87 

1.48 

.916

Run-off

Inches

0.52 

.51 

.52 

.60 

3.31 

7.68 

8.07 

4.46 

1.71 

1.02

Acre-feet

196,000 

190,000 

195,000 

226,000 

1, 240, 000 

2, 870, 000 

3, 020, 000 

1. 670, 000 

640,000 

382, 000

SOUTH FORK OF FLATHEAD RIVER KEAR COLUMBIA FALLS, MOKT

LOCATION. In NW. M sec. 7, T. 30 N., R. 19 W., at highway bridge half a mile 

above mouth and 7 miles east of Columbia Falls, Flathead County.

DRAINAGE AREA. 1,640 square miles (measured on Forest Service map).

RECORDS AVAILABLE. September 20, 1910, to September 30, 1916, and April 13, 

1923, to September 30, 1925.

GAGE. Stevens water-stage recorder installed April 13, 1923, in gage shelter on 

downstream side of pier.

DISCHARGE MEASUREMENTS. Made from highway bridge.

CHANNEL AND CONTROL. Channel composed of boulders and cobblestones. No 

definite control. Banks high; not subject to overflow.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 11.00 feet at 4 

p. m. May 25 (discharge, 23,200 second-feet); minimum stage, 2.10 feet at 

8 a. m. October 1 (discharge, 360 second-feet).

1910-1916; 1923-1925: Maximum stage recorded, 16.6 June 19, 1916, 

(discharge estimated by extension of rating curve, 46,200 second-feet); minimum stage, 2.08 feet October 6, 1923 (discharge, 340 second-feet).

DIVERSIONS. None.

REGULATION. None.

ACCURACY. Stage-discharge relation permanent, except as affected by shifting 

control during the period April 8-2tJ. Gage-height record fragmentary. 

Curve is well denned between 400 and 24,000 second-feet. Daily discharge 

ascertained by applying mean daily gage height to rating table. Records 

good.

Discharge measurements of South Fork of Flathead River near Columbia Falls; 

Mont., during the year ending September 30, 1925

Date

Oct. 3..........

Nov. 3 ..-- 

Gage 

height

Feet

2.78

2.92

Discharge

Sec.-ft. 

902

1,030

Date

May 25... ...

Gage 

height

Feet 

10.80

Discharge

Sec.-ft. 

22,600

Date

A 11(7 1 ^

Gage 

height

Feet 

8.85

A f\A

Discharge

Sec.-fi. 

16,200

o 430
88 SURFACE WATER SUPPLY, 1925, PART XII A

Daily discharge, in second-feet, of South Fork of Flathead River near Columbia. 

Falls, Mont., for the year ending September SO, 1926

Day

10-

11.

12-

13-

14.

15.

16.

17-

18- 

19. 

20-

21. 

22- 

23. 

24-

25.

26. 

27-

28.

29. 

30- 

31.

Dct.

41?!

406

749

985

880

776

722

704

695

548

510

495

495

495

488

481

474

481

481

474

474

460

439

41?,

392

439

460

555

634

650

Nov.

758

850

1,330

1,070

985

041

910

890

890

900

910

880

900

oin

910

900

880

ocn

767

740

731

722

704

722

731

Dec.

731

731

722

722

731

722

731

713

Apr.

10,000

12,800

14,000

18,200

21, 100

17,000

14, 300

13,000

14 Qflfl

16,000

14,000

11, 400

May

22, 300

19,700

18, 500

19,400

21,200

21, 600

17,700

June

11,400

7,280

6,740

6,480

15, 800

16,000

15,800

14, 400

13,000

11,900

11,200

10, 800

10,200

9,900

9,150

July

8,260

7,700

7,000

6,350

5,960

5,580

5,200

4,820

4,460

4,120

4,340

3,790

3,580

3,480

3,280

3,100

3,000

3,000

2,820

2,640

2,560

2,470

2,470

2,310

2,560

2,470

2,470

Aug.

2,470

3,280

2,730

2,240

2,090

1,950

1,820

1,680

1,620

1,680

1,620

1,560

1,500

1,440

1,380

1,300

1,200

Sept.

1,200

1,150

1,100

1,100

1,040

1,040

1,040

1, 150'

1,260

1,155

1,150-

1, 100

1,100

1,040

1,100

1.10&

1,150

1,130

1,110

1,080

1,010

985

NOTE. No record Dec. 9 to Apr. 8, Apr. 20 to May 25, June 5-19, July 28 to Aug. 14, and Sept. 17-24.

Monthly discharge of South Fork of Flathead River near Columbia Falls, Mont., 

for the year ending September SO, 1925

[Drainage area, 1,640 square miles]

Month

April8-20 ___.. _ _.___

July l-27_- _____ ____________

August 15-31 _____________ __

September (22 days) ____ ______

Discharge in'second-feet

Maximum

985 

1,330 

731 

21, 100 

22,300 

16, 000 

8,260 

3,280 

1,260

Minimum

392 

704 

713 

10,000 

17, 700 

6,480 

2,310 

1,200 

985

Mean

553 

913 

726 

14,400 

20,100 

11, 300 

4,070 

1,860 

1,100

Per 

square 

mile

0.337 

.557 

.443 

8.78 

12.3 

6.89 

2.48 

1.13 

.671

Run-off

Inches

0.38 

.62 

.13 

4.24 

3.20 

3.84 

2.49 

.71 

.55

Acre-feet

34, 000 

54, 300 

11, 500 

371,000 

279, 000 

336, 000 

218, 000 

62, 700 

48,000

SWAN RIVER NEAR BIG FORK, MONT.

LOCATION. In NW. % see. 14, T. 26 N., R. 19 W., Lake County, at outlet of 

Swan Lake, 7 miles southeast of Big Fork, Flathead County.

DRAINAGE AREA. Not measured.

RECORDS AVAILABLE. April 28, 1922, to September 30, 1925.

GAGE. Vertical staff with enamel face fastened to pier on left bank, 1,000 feet 

below outlet of lake; read by Pat Murphy.

DISCHARGE MEASUREMENTS. Made from highway bridge three-fourths of a mile 

below gage or from boat.
CLA.RK FORK BASIN 89

CHANNEL AND CONTROL. Bed of stream composed of boulders and gravel.

Banks subject to overflow at high stages. Control is rock ledge about 300

feet below gage, slightly shifting. 

EXTREMES OF DISCHARGE. Maximum stage reported during year, 5.45 feet at

8 p. m. May 23 (discharge, 6,760 second-feet); minimum stage, 0.58 foot

October 1 and 26-29 (discharge, 352 second-feet).

1922-1925: Maximum stage reported, that of May 23, 1925; minimum

stage, 0.33 foot February 25 to March 24, 1923 (discharge, 268 second-feet). 

ICE. Stage-discharge relation seriously affected by ice. 

Di VERSIO NS. None. 

REGULATION. None. 

ACCURACY. Stage-discharge relation permanent during year, except as affected

by ice. Rating curve well defined between 300 and 6,500 second-feet.

Gage read to hundredths once or twice daily. Discharge ascertained by

applying mean daily gage height to rating table. Records good.

Discharge measurements of Swan River near Big Fork, Mont., during the year 

ending September 30, 1925

Date

Oct. 2 __ ......

Gage 

height

Feet 

0.63

.91

Discharge

Sec.-ft. 

384

606

Date

May25 .

Gage 

height

Feet

5.06

Discharge

Sec.-ft. 

3,620

6,090

Date Gage 

height

Feet 

3.55

Discharge

Sec.-ft. 

3,390

Daily discharge, in second-feet, of Swan River near Big Fork, Mont., for the year 

ending September 30, 1925

Day

1.. _ ... _ .

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

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

4...... _ .. .

5 ..........

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

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

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

9 ........

10 . _ ......

11 ........ .

12.. ....

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

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

15 . ... .

16......... .

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

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

19 .........

20 ......

21 ..........

22 .........

23 ..........

24 ..........

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

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

27 ..........

28 

29 ..

30 .........

31 .........

Oct.

352

360

395

424

424

433

414

414

414

414

395

395

395

395

378

378

378

378

369

369

369

360

360

360

352

352

352

352

360

360

Nov.

424

433

474

516

596

608

620

596

584

584

572

549

538

516

505

505

505

495

453

453

474

516

527

527

527

516

516

453

453

Dec.

443

443

453

463

453

453

453

433

414

414

453

463

505

Mar.

706

722

754

842

898

955

1,010

1,130

1,290

1,490

Apr.

1,670

1,780

1,890

2,070

2 580

3,130

3,490

3,600

3,520

3,590

3,720

3,860

4,330

4,560

4,360

4,070

3,860

3,810

3,780

3,680

3,520

3,330

3,220

3,220

3,190

3,010

2,810

2,550

2,390

2,260

May

2,280

2,420

2,550

2,610

2,670

2,820

3,120

3,460

3,670

3,700

3,570

3,670

4,000

4,580

5,110

5,350

5,400

5,300

5,420

5,670

6,030

6,240

6,660

6,560

6,010

5,600

5,110

4,730

4,670

4,770

4,800

June

4,620

4,280

3,960

3,750

3,560

3,350

3,130

2,920

2,750

2,810

2,920

3,080

3,100

3,070

3,000

2,840

2,790

2.850

3,070

3,350

3,640

3,830

3,970

3,970

3,800

3,640

3,480

3,350

3,250

3,200

July

3,100

2,960

2,810

2,650

2,510

2,370

2,220

2,120

2,000

1,900

1,810

1,700

1,660

1,590

1,540

1,480

1,440

1,400

1,360

1,330

1,290

1,230

1,240

1,210

1,240

1,200

1,160

1,110

1,080

1,050

1,020

Aug.

974

936

917

917

898

870

824

815

788

770

754

722

722

722

964

1,070

1,110

1,110

1,070

1,030

993

917

879

898

898

898

824

824

788

788

754

Sept.

722

690

676

662

634

634

634

690

722

722

722

706

706

706

706

70S

754

788

788

806

788

788

788

754

754

706

706

690

662

662

NOTE. No record Dec. 14 to Mar. 21.
90 SURFACE WATER SUPPLY, 1925, PART XII A

Monthly discharge of Swan River near Big Fork, Mont., for the year ending September 30, 1925

Month

October ___________________________

November _ _ _________________

March 22-31.. ... . _ . .._ ....................

May. ___ ._ _ _ ... __________________

July......-.... ...... ...... ..........................

August _____ .. __ . _________________

Discharge in second-feet

Maximum

433

620 

505 

1,490 

4,560 

6,660 

4,620 

3,100 

1,110 

, 806

Minimum

352 

424 

414 

706 

1,670 

2,280 

2,750 

1,020 

722 

634

Mean

331 

517 

449 

980 

3,230 

4,470 

3,380 

1,700 

885 

716

Run-off in 

acre-feet

23,400 

30,800 

11,600 

19,400 

192,000 

275,000 

201,000 

105,000 

54,400 

42,600

BIG CREEK NEAR POISON, MONT.

LOCATION. In NW. % sec. 4, T. 22 N., R. 19 W., just below power house of 

Mission Range Power Co., three-fourths mile above mouth and 7 miles

east of Poison, Lake County. 

DRAINAGE AREA. Not measured.

RECORDS AVAILABLE. June 1, 1917, to September 30, 1925. 

CAGE. Stevens eight-day water-stage recorder on left bank. 

CHANNEL AND CONTROL. An artificial control about 2 feet below gage. One

channel at all stages. Shifts occasionally, owing to gravel being deposited

above control.

DISCHARGE MEASUREMENTS. Made from foot log just above gage or by wading. 

EXTREMES OB- DISCHARGE. Maximum discharge recorded during year ending

September 30, 1924, 27.2 second-feet May 17 (the flow in pipe line and canal

has been included); minimum discharge about 2 second-feet during October

(entire flow in pipe line and canal). 

Maximum discharge recorded during year ending September 30, 1925,

61 second-feet May 22 (the flow in the pipe line only, has been included);

minimum discharge about 2.0 second-feet October 5 (entire flow in pipe line

and canal).

1917-1925: Maximum stage recorded, 2.4 feet June 9, 1917 (discharge

from extended rating curve, 104 second-feet); minimum discharge, no flow

as power plant was shut down for short periods during November and

December, 1922 seldom longer than one or two hours. 

ICE. Stage-discharge relation affected by ice. 

DIVERSIONS. Poison "A" Canal of United States Office of Indian Affairs diverts

water between power house and gage, and the intake for Poison pipe line

is between the canal and the gage. 

REGULATION. Operation of power plant materially affects flow, maximum effect

being during low-water period. 

ACCURACY. Stage-discharge relation not permanent, affected by shifting control

and by ice. Rating curves fairly well defined. Daily discharge ascertained

by applying mean daily gage height to rating table and adding the flow in

the city pipe line.

Discharge measurements of Big Creek near Poison, Mont., during the years ending 

September SO, 1924 and 1925

Date

1924

TV/TQ-TT OjJ.

Tnnft 9Q

Gage 

height

Feet 

1.34

1.68

1.20

1.29

Discharge

Sec.-ft. 

2.6

16.8

.26

1.3

Date

1924 

Oct. 2..........

1925

May 26.. 

Gage 

height

Feet 

1.30

1.45

1.54

Discharge

Sec.-ft. 

3.4

11.4

18.1

Date

1925 

June 20-.-- --

Aug. 14.- .....

Gage 

height

Feet 

1.46

1.32

Discharge

Sec.-ft. 

11.8

1.7
CLARK FORK BASIN 91

Daily discharge, in second feet, of Big Creek near Poison, Mont., j or the year sending 

September 30, 1924 and 1925

Day

1923-24 

1 . .... 

2. __ ........

3. __ .........

4. __ .... _ ..

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

6.. __ ........

7 _________

8 .

9 

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

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

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

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

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

15 

16 

17 

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

19 - 

20 

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

22. ___ .. ___ .

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

24 

25 

26..... ....

27. ____ . ,. 

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

29- 

30. ......

31 ..

1924-25 

1. _______ ..

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

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

4.. ... ...

5 ..... ...

6 .. .

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

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

9 ... ..... ..

10. ......

11 

12........ _ ...

13. _ ... __ ...

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

15 ........

16 

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

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

19. _ . _ ......

20 ......

21 _________

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

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

24.. ___ ......

25 

26 ......

27 ___ ..

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

29 .........

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

31 .....

Oct.

5.6

5.4

5.2

5.0

4.8

4.8

3.0

3.8

4.0

3.8

4.0

4.0

3.4

2.6

3.2

3.4

4.4

3.0

3.4

5.2

4.4

3.6

3.0

3.0

3.2

3.0

3.2

2.4

3.0

4.4

3.4

4.0

3.4

2.6

3.0

2.2

3.6

2.8

3.0

3.0

3.0

3.2

2.8

3.2

2.8

2.8

4.0

3.6

3.6

3.0

4.2

3.0

3.2

3.0

2.4

2.2

2.2

2.2

2.4

2.8

2.8 

2.8

Nov.

3.2

3.8

3.4

2.4

3.4

4.0

4.0

4.0

3.2

4.6

3.2

4.6

5.0

5.4

5.3

5.3

5.2

3.2

4.6

5.0

4.9

4.9

4.8

4.6

3.2

4.5

4.9

5.0

3.1

4.4

2.8

2.2

2.2

2.2

3.6

4.2

4.2

3.6

3.4

4.0

4.0

3.8

4.5

4.8

4.8

3.0

4.6

5.1

4.9

4.8

4.9

4.8

3.3

4.6

4.9

3.8

2.8

4.5

3.7

3.3

Dec.

4.7

3.2

4.7

5.1

4.7

4.9

4.8

4.9

3.2

4.6

4.8

5.1

5.0

4.5

4.6

3.3

4.5

5.2

4.4

3.2

3.3

3.6

3.3

3.3

3.3

3.3

3.7

3.7

3.6

3.1

3.3

5.0

5.1

3.8

4.9

4.0

5.0

3.1

4.5

3.7

3.8

5.0

3.9

3.7

3.2

2.7

3.7

4.2

4.8

5.0

3.5

4.6

4.9

4.7

3.3

4.7

3.3

4.0

4.9 

5.0

Jan.

3.3

3.2

3.4

3.3

3.3

3.1

3.2

3.4

3.3

3.3

3.3

3.2

3.1

3.0

3.1

3.3

3.4

3.2

3.1

3.1

3.4

3.8

4.1

3.7

3 Q

4.2

3.1

o Q

3.7

3.3

3.3

3.5

4.3

3.7

3.2

4.5

3.6

3.5

4.6

3.7

s <;

2.8

4.2

3.5

3.3

4

0

3.4

3.5

2.9

3.2

4.4

2.9

4.4

3.6

2.8

3.0

4.3

3.4

4.5

3.3 

4.3

Feb.

3.8

3.5

3.1

4.1

5.1

4.8

4.7

3.9

4.9

3.0

4.3

5.5

4.4

4.8

i t

5.4

3.1

3.9

5.3

4.1

5.5

4.5

5.2

2 Q

4.8

4. 3

4.3

<; i

5.0

3.1

4.3

3.5

4.6

3.4

4.2

o 9

2.8

4.2

3 9

4

0

3.0

3.8

3.0

2.7

3.6

3.2

4.0

3.0

3.8

3.0

2.7

3.7

3.1

3.7

2 7

3.9

3.2

.......

Mar.

4.0

3.2

4.4

5.3

4.0

3.9

5.0

5.0

2.9

4.7

5.3

5.3

5.0

5.0

5.2

2.8

3.4

2.8

3.9

3.8

4.2

4.4

2.7

2.7

3.9

3.8

3.3

4.2

2.6

4.2

2.6

4.4

3.4

3.6

3.3

3.2

3.7

2.5

4.0

3.2

4.3

3.4

4.1

3.0

2.6

4.0

3.3

4.1

3.1

3.0

2.6

2.6

3.8

3.0

2.8

3.6

2

Q

2

0

4.8 

6.0

Apr.

3.6

3.6

4.2

3.1

3.7

2.7

4.0

4.3

3.0

3.0

3.8

3.2

2.8

4.0

3.2

3.2

3.8

4.6

3.8

3.0

3.4

4.0

3.4

3.2

4.0

3.8

2

0

3.8

4.6

3.8

6.0

5.4

5 4

4.8

8.0

14.0

8.4

4.6

8.4

19.4

21.0

18.8

8.4

9 11

12.0

14.8

13.4

14.0

14.8

12.6

14.0

16.8

18.4

10.8

9.0

9.0

8.4

8.4

May

6.2

6.4

13.6

17.2

17.6

10.0

6.6

7.0

11.2

12.2

13.6

17.2

17.8

18.0

16.6

16.8

22.6

20.8

21.6

18.6

15.4

16.0

13.8

11.4

9.0

Q fi

9.2

6.0

6.2

13.4

13.4

10.0

10.6

10.0

10.6

13.4

14.8

14.8

12.6

16.0

17.6

24.8

25.8

25.8

27.8

31.8

36.8

38.8

51.8

47.8

35.8

23.8

19.4

21.8

20.2

30.8

25.8

June

7.2

9.8

10.4

8.2

6.0

6.8

8.4

9.6

9.8

7.2

7.2

10.0

9.4

10.0

8.2

10.0

8.4

8.4

8.4

8.0

6.4

5.6

6.6

6.2

6.2

5.4

5.6

5.2

5.0

5.4

19.4

16.0

13.4

15.4

16.0

16.0

13.4

11.4

18.4

16.8

17.6

14.8

15.4

14.8

14.8

13.4

13.4

16.0

14.8

14.0

13.4

10.6

8.0

6.4

7.4

9.0

7.0

July

5.4

5.4

5.2

5.2

5.2

5.0

5.2

5.2

5.6

5.4

5.4

5.4

5.0

5.4

5.4

5.4

5.4

5.4

5.0

4.8

4.8

4.8

4.6

4.8

5.0

4.6

4.8

5.2

4.8

5.2

4.8

......

Aug.

4.6

4.4

4.4

4.4

4.4

4.6

4.4

4.4

4.4

4.4

4.4

4.4

4.4

4.4

4.6

4.6

4.2

4.2

4.2

4.2

4.4

4.2

4.6

4.0

4.8

5.0

5.0

5.0

5.2

5.4

4.2

.......

Sept.

4.8

6.2

5.4

6.0

6.0

6.2

5.2

6.0

6.4

7.0

6.8

5.6

5.8

4.4

<; n

5.0

5.0

5.0

4.8

4.8

4.4

5.0

5.2

5.0

5.2

5.0

6.0

A A

5.4

5.4

.......

NOTE. Daily discharge Nov. 10, 1923, to Apr. 8, 1924, determined from output of power plant, 

discharge of the Poison "A" Canal has been includedjrom May 1 to Sept. 30, 1924.

3223 29 7

The
92 SURFACE WATER SUPPLY, 1925, PART XII A

Monthly discharge of Big Creek near Poison, Mont., for the years endina September

30, 1924 and 1925

Month

1923-24

July 

The year _______________________

1924-25

July-- . 

Discharge in second-feet

Maximum

5.6 

5.4 

5.2 

4.2 

5.5 

5.3 

4.6 

22.6 

10.4 

5.8 

5.4 

7.0

22.6

4.2 

5.1 

5.1 

4.5 

4.6 

6.0 

21.0 

51.8 

19.4

51.8

Minimum

2.4 

2.4 

3.1 

3.0 

2.9 

2.6 

2.7 

6.0 

5.0 

4.6 

4.0 

4.4

2.4

2.2 

2.2 

2.7 

2.8 

2.7 

2.5 

4.6 

10.0 

4.2

Mean

3.83 

4.24 

4.09 

3.39 

4.41 

3.99 

3.58 

13.7 

7.63 

5.12 

4.51 

5.41

5.33

2.99 

3.91 

4.21 

3.68 

3.46 

3.42 

11.4 

22.2 

13.3 

3.31 

4.25 

4.74

6.74

Run-off in 

acre-feet

236 

252 

251 

208 

254 

245 

213 

842 

454 

315 

277 

322

3,870

184 

233 

259 

226 

192 

210 

678 

1,360 

791 

204 

261 

282

4,880

NOTE. Mean monthly discharge for July, August, and September, 1925, computation from the kilowatt 

output of power plant.

PRIEST RIVER AT OUTLET OF PRIEST LAKE, NEAR COOII1T, IDAHO

LOCATION. In SW. M sec. 5, T. 59 N., R. 4 W., at southwest end of Priest Lake, 

2 miles northwest of Coolin, Bonner County.

DRAINAGE AREA. 572 square miles.

RECORDS AVAILABLE. June 18, 1911, to September 30, 1925.

GAGE. Stevens water-stage recorder on right bank 600 feet below outlet; 

installed November 24, 1914; inspected by F. S. Williamson.

DISCHARGE MEASUREMENTS. Made from cable about 300 feet above gage or by 

wading.

CHANNEL AND CONTROL. Bed rough. Banks high. Control formed by boulder 

riffle. Many large boulders and angular rocks at control catch logs and 

cause backwater.

EXTREMES OF DISCHARGE. Maximum stage recorded during year from waterstage recorder, 5.55 feet at 8 a. m. on May 23 (discharge, 5,730 second-feet); 

minimum stage, 0.13 foot at 8.20 p. m. October 2 (discharge, 152 secondfeet).

1911-1925: Maximum stage recorded, 6.83 feet at 1.30 p. m. May 30, 1917 

(discharge, 7,290 second-feet); minimum discharge, that of October 2, 1924.
CLARK FORK BASIN 93

ICE. Ice forms on lake and occasionally in river just below outlet. Stagedischarge relation not affected by ice except possibly for short periods when 

ice, running out of lake, jams on rocks at control.

DIVERSIONS. None.

REGULATION. None.

ACCURACY. Stage-discharge relation practically permanent; affected by logs 

April 8-15. Rating curve well defined. Operation of water-stage recorder 

satisfactory except as noted in footnote to table of daily discharge. Daily 

discharge ascertained by applying to rating table mean daily gage height 

determined from gage-height graph by inspection. Records excellent.

The following discharge measurements were made: 

May 28, 1925: Gage height, 5.02 feet; discharge, 5,040 second-feet. 

September 22, 1925: Gage height, 0.31 foot; discharge, 204 second-feet. 

September 22, 1925: Gage height, 0.31 foot; discharge, 207 second-feet.

Daily discharge, in second-feet, of Priest River at outlet of Priest Lake near Coolin, 

Idaho, for the year ending September 30, 1925

Day

1.. _ .........

2. ____ . ___

3 .... -

4 __ .... ...

5 

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

7 

8... .... . 

9 

10 - 

11 

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

13 

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

15 __ .....

16 . __ .

17 __ ...

18...... _ .....

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

20 ___ ..

21

22... __ .......

23... ...

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

25.... __ . .....

26. __ ... ___ .

27 

28 ........

29. ____ ......

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

31. . ...

Oct.

176

173

176

176

182

176

176

179

182

185

179

179

188

191

191

194

194

194

194

197

197

197

197

197

197

203

209

221

234

240

248

Nov.

258

284

303

331

347

360

368

381

398

402

406

410

406

406

406

406

406

402

414

410

419

419

419

414

410

406

398

393

389

385

Dec.

381

381

381

385

389

398

389

377

368

377

377

381

393

410

457

461

453

461

461

466

461

461

461

461

461

461

461

479

484

484

479

Jan.

484

484

484

484

494

489

484

484

484

494

494

498

494

484

484

479

479

503

508

508

508

512

522

517

512

508

508

508

508

422

542

Feb.

553

558

585

636

690

735

748

762

769

769

776

762

755

748

742

735

729

716

703

703

703

710

735

748

748

748

762

755

Mar.

735

722

722

729

729

729

722

716

716

703

697

687

690

690

678

672

666

666

666

660

660

666

660

666

666

666

666

678

684

690

703

Apr.

710

722

742

782

839

760

735

992

1,280

1,570

1,850

2,400

2,820

3,200

3,400

3,530

3,660

3,940

4,080

4,080

4,080

3,840

3,840

3,940

3,940

3,800

3,800

3,660

3,660

3,660

May

3,660

3,660

3,660

3,660

3,660

3,660

3,800

3,840

3,940

4,080

4,080

4,080

4,080

4,220

4,220

4,360

4,500

4,650

4,800

4,850

5,100

5,570

5,570

5,410

5,250

4,950

4,880

4,800

4,650

4,650

4,500

June

4,220

4,080

3,940

3,800

3,660

3,530

3,400

3,400

3,270

3,200

3,140

3,140

3,080

3,080

3,010

2,840

2,940

2,880

2,880

2,820

2,760

2,700

2,640

2,580

2,460

2,400

2,280

2,280

2,220

2,120

July

2,000

1,850

1,900

1,780

1,680

1,620

1,520

1,470

1,420

1,320

1,280

1,230

1,180

1,130

1,100

1,050

1,000

862

830

883

854

817

788

762

735

716

690

672

648

636

618

Aug.

602

587

571

556

540

525

510

494

479

468

458

448

437

427

416

406

385

385

372

360

348

335

329

324

318

312

306

301

295

284

276

Sept.

262

258

248

240

237

230

224

215

209

206

206

203

200

200

200 in200

197

197

200

184

200

203

200

187 \ ~ 

200

200

203

194

185

NOTE. Water-stage recorder not operating May 27. Gage height record Aug. 2-28 lost in mail; discharge obtained by interpolation between occasional days on which observer read and reported staff gage 

readings.
94 SURFACE WATER SUPPLY, 1925, PART XII A

Monthly discharge of Priest River at outlet of Priest Lake, near Coolin, Idaho, for the 

year ending September 30, 1925

[Drainage area, 572 square miles]

Month

October ___________________

July.:. . .... 

Discharge in second-feet

Maximum

248 

419 

484 

542 

776 

735 

4,080 

5,570 

4,220 

2,000 

602 

262

5,570

Minimum

173 

258 

368 

479 

553 

660 

710 

3,660 

2,120 

618 

276 

185

173

Mean

194 

386 

429 

499 

717 

691 

2,690 

4,420 

3,030 

1,140 

415 

210

1,240

Per

square 

mile

0.339 

.675 

.750 

.872 

1.25 

1.21 

4.70 

7.73 

5.30 

1.99 

.726 

.367

2.17

Run-off

Inches

0.39 

.75 

.86 

1.01 

1.30 

1.40 

5.24 

8.91 

5.91 

2.29 

.84 

.41

29.31

Acre-feet

11,900 

23,000 

26,400 

30,700 

39,800 

42,500 

160,000 

272,000 

180,000 

70,100 

25,500 

12,500

894,000

COLVILLE KIVEK BASIN 

COIVHIE RIVER AT METERS FAILS, WASH.

LOCATION. In sec. 29, T. 36 N., R. 38 E., at Stevens County Light & Power 

Co.'s plant at foot of Meyers Falls at town of Meyers Falls, Stevens County.

DRAINAGE AEEA. Not measured.

RECOBDS AVAILABLE. October 26, 1922, to September 30, 1925.

GAGE. Vertical staff in two sections at confluence of power plant tailrace and 

river; read by W. L. Miller.

DISCHABGE MEASUREMENTS. Made from cable or by wading.

CHANNEL AND CONTROL. Right bank high, will not be overflowed; left bank may 

be overflowed at extremely high water. Channel straight for several hundred 

feet below gage. Control is of sand, gravel, and boulders that form pool 

at foot of falls; will shift at high stage. Stage of zero flow, according to 

measurement made September 19, 1925, gage height 0.23 foot, ±0.05 foot.

EXTREMES OP DISCHARGE. Maximum stage recorded during year, 4.65 feet at 

2.15 p. m. April 19 (discharge, 1,290 second-feet); minimum stage, 0.86 

foot at 1.10 p. m. September 14 (discharge, 18 second-feet).

1923-1925: Maximum stage recorded, that of April 19, 1925; minimum 

stage recorded, 0.70 foot at 1.45 p. m. August 13, 6.18 a. m. August 14, and 

1.25 p. m. September 3, 1924 (discharge, 17 second-feet).

ICE. Stage-discharge relation seriously affected by ice; flow estimated from 

observer's notes and weather records.

DIVERSIONS. Several small ditches divert water for irrigation above station.

REGULATION. Small reservoir above the falls; effect of regulation probably 

slight.

ACCURACY. Stage-discharge relation changed at high water April 22; affected 

by ice November 27 to December 2, December 7-12, and December 16 to 

February 14, and by logs on control August 23-25. Rating curves well 

denned below 900 second-feet. Gage read to hundredths twice daily. 

Daily discharge ascertained by applying mean daily gage height to rating 

table. Records good except for period of ice effect.

The following discharge measurements were made: 

May 4, 1925: Gage height, 3.36 feet; discharge, 622 second-feet. 

June 8, 1925: Gage height, 2.15 feet; discharge, 227 second-feet. 

September 19, 1925: Gage height, 1.18 feet; discharge, 43.1 second-feet.
HALL CREEK BASIN 95

Daily discharge, in second-feet, of Colville River at Meyers Falls, Wash., for the 

year ending September 80, 1925

Day

1 __ . __ . _

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

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

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

5.-.. ___ . ...

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

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

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

9 _ 

10 

11.. ___ . _ ..

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

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

14. ___ . _ . ...

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

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

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

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

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

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

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

22 . .

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

24 

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

26. ..

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

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

29..-. .........

30 ........

31-......... .

Oct.

46

52

68

54

60

60

55

55

54

64

<u

65

65

63

65

68

65

68

65

68

68

63

63

72

69

70

68

75

82

86

Q4

Nov.

100

108

113

142

152

161

161

171

192

192

181

152

121

123

120

113

116

120

123

142

161

181

171

161

152

132

1 100

Dec.

100

105

113

113

132

132

100

1 W

181

192

> 65

i 60

Jan.

. 70

70

120

Feb.

450

650

517

498

440

404

354

338

338

338

404

498

517

557

557

598

Mar.

640

683

683

683

683

683

640

598

598

598

557

557

517

517

517

498

498

459

459

459

422

440

440

478

498

498

498

517

517

517

557

Apr.

557

557

598

640

727

772

867

916

1,020

1,120

1,170

1,220

1,270

1,270

1,270

1,220

1,170

1,220

1,270

1,270

1,220

1,080

1,030

980

932

885

839

796

755

716

May

716

678

641

641

604

604

567

530

530

530

493

474

474

438

404

404

404

388

372

372

340

356

388

388

388

356

340

325

310

295

295

June

280

280

295

280

266

252

239

226

252

226

266

295

295

280

266

252

239

239

214

202

202

190

178

145

139

156

120

105

100

93

July

91

91

88

75

82

82

75

74

72

65

61

53

65

53

72

64

69

56

53

57

56

51

57

58

56

53

56

52

48

46

44

Aug.

50

42

46

42

44

46

46

39

48

44

42

38

45

40

39

43

48

39

51

61

48

45

44

48

62

53

98

50

44

47

52

Sept.

64

47

53

47

62

39

57

56

56

31

51

40

58

37

56

46

33

37

44

44

50

45

40

47

56

69

58

64

66

69

NOTE. Braced figures give estimated mean discharge for periods indicated.

Monthly discharge of Colville River at Meyers Falls, Wash., for the year

September 30, 1925

Discharge in second-feet

Maximum

1

December ___ ________________________ 192

January

March _ 683

April...... ..................... .......................... 1,270

May.... _ ...... _ .............. _ .................... 716

July...................................................... 91

September. ___________________________ 69

The year _____________________ _ ___ 1,270

Minimum

46

422

557 

295 

93 

44 

38 

31

31

Mean

65.6 

139 

91.0 

87.7 

502 

545 

979 

453 

219 

63.7 

47.9 

51.1

268

Run-off in 

acre-feet

4,030 

8,270 

5,600 

5,390 

27,900 

33,500 

58,300 

27,900 

13,000 

3,920 

2,950 

3,040

194,000

HALL CREEK BASIN 

HAII CREEK AT INCHELIUM, WASH.

LOCATION. In NE. J^ sec. 6, T. 32 N., R. 37 E., half a mile above highway 

bridge, uhree-fourths mile above mouth, and three-fourths mile northwest 

of Inchelium, Ferry County.

DEAINAGB AEEA. 163 square miles (measured on topographic map and maps of 

Colville Indian Reservation and Colville National Forest).

RECORDS AVAILABLE. December 18, 1912, to September 30, 1925.
96 SURFACE WATER SUPPLY, 1925, PART XII A

GAGE. Stevens water-stage recorder on right bank one-half mile above highway 

bridge since August 27, 1916; inspected by C. E. Williamson.

DISCHARGE MEASUREMENTS. Made from cable 15 feet downstream from gage or 

by wading.

CHANNEL AND CONTROL. Bed of stream composed of gravel and boulders; shifts 

at extremely high stages. Channel straight above and below gage. Banks 

high.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, from waterstage recorder, 3.84 feet at 6.45 p. m. April 12 (discharge, 700 second-feet); 

minimum stage, 1.31 feet from midnight to 1 a. m. October 1 (discharge, 10 

second-feet). Minimum discharge for the year probably occurred during 

period records were not being kept.

1912-1925: Maximum stage recorded, 3.10 feet at 6.20 a. m. April 16, 

1914 (discharge, 965 second-feet). Minimum discharge probably occurred 

on January 1, 1919, when stage-discharge relation was affected by ice; discharge estimated at 4 second-feet.

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

DIVERSIONS. None.

REGULATION. None.

ACCURACY. Stage-discharge relation changed gradually April 7-11. Rating 

curves fairly well defined. Shifting-control method used April 7-11. Operation of water-stage recorder satisfactory except as noted in footnote to table 

of daily discharge. Daily discharge ascertained by applying to rating table 

the mean daily gage height determined by inspection from gage-height 

graph. Records good.

Discharge measurements of Hall Creek at Inchelium, Wash., during the year ending

September 30, 1925

Date

Mar. 17..... ...

May 2 _____

Gage 

height

Feet 

2.05

3.06

Discharge

Sec.-ft. 

62.7

316

Date Gage 

height

Feet 

3.05

2.31

Discharge

Sec.-ft. 

304

99.6

Date

Sept. 20.... ....

Do.........

Gage 

height

Feet 

1.46

1.46

Discharge

Sec.-ft. 

12.8

12.9

Daily discharge, in second-feet, of Hall Creek at Inchelium, Wash., for the year 

ending September 30, 1925

Day

1 __________

2. .. ....._ ..

3... .. .

4 ____ . __ ..

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

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

8-........ ........

9... _ . .. ...

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

11 ___ ...... ........

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

13-... _ .............

14-.....-----..--.-...

15 

16- _ ............

17 

18 

19 

20 . _

Oct.

12

12

Mar.

63

63

63

64

Apr.

142

161

192

235

290

358

437

496

552

593

663

676

647

601

540

551

540

524

487

May

300

307

311

303

300

300

303

307

296

286

275

261

251

240

227

217

211

206

194

188

June

114

114

105

101

96

99

97

91

99

97

101

93

88

89

85

79

76

72

68

64

July

35

35

34

32

31

31

31

31

30

28

27

25

24

23

22

22

20

19

19

19

Aug.

14

14

14

14

14

14

13

13

14

14

14

14

14

13

15

16

16

15

14

13

Sept.

12

12

12

12

12

12

11

11

11

11

11

11

11

11

11

11

11

12

13

13
STRANGER CREEK BASIN 97

Daily discharge, in second-feet, of Hall Creek at Inchelium. Wash., for the year 

ending September 30, 1925 Continued

Day

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

22... _.___.__. ........

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

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

25 .

26-.... ............

27 . .. __

28 . ___.

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

30 ......-..

31 ... _ .........

Oct. Mar.

70

83

110

116

125

125

120

120

125

125

127

Apr.

456

423

400

378

353

329

318

307

300

296

May

206

188

173

160

155

145

138

131

131

125

120

June

59

56

52

48

46

44

42

40

39

36

July

18

18

17

17

17

17

16

15

15

15

14

Aug.

13

13

13

13

13

13

12

12

12

12

12

Sept.

13

13

12

12

12

12

14

15

14

14

NOTE. Water-stage recorder not operating Aug. 21 to Sept. 10; discharge interpolated. No record 

Oct. 4 to Mar. 16.

Monthly discharge of Hall Creek at Inchelium, Wash., for the year ending September

SO, 1925

Month

March 17-31... ......... __ ..... _ ___-_.__ ..

July.- ..-. . 

Discharge in second-feet

Maximum

127 

676 

311 

114 

35 

16 

15

Minimum

63 

142 

120 

36 

14 

12 

11

Mean

99.9 

427 

224 

76.3 

23.1 

13.5 

12.1

Run-off in 

acre-feet

2,970 

25,400 

13, 800 

4,540 

1,420 

830 

720

49,700

STRANGER CREEK BASIN 

STRANGER CREEK AT METEOR, WASH.

LOCATION. In sec. 21, T. 32 N., R. 36 E., at highway bridge at Meteor, 8 miles 

southwest of Inchelium, Ferry County.

DRAINAGE AREA. Net measured.

RECORDS AVAIL ABLE. August 29, 1916, to September 30, 1925.

GAGE. Vertical staff m right bank 15 feet downstream from bridge; read by 

Andrew Kilgore.

DISCHARGE MEASUREMENTS. Made from highway bridge or by wading.

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

Left bank subject to overflow at extremely high stages. Concrete control 

6 feet downstream torn gage. Stage of zero flow, according to measurements made April 6 md September 25, 1923, gage height zero.

EXTREMES OF DISCHARGE Maximum stage recorded during year, 1.8 feet on 

April 19 and 20 (disciarge, 180 second-feet); minimum stage recorded, 0.10 

foot August 20-22, 26-28, and September 1-5 (discharge, 0.2 second-foot).

1916-1925: Maximxm stage recorded, that of April 19-20, 1925; probably 

no flow on December 12, 1919, creek frozen almost solid; no flow August 

13-18 and August 24 10 September 30, 1924.

ICE. Stage-discharge relatbn affected by ice. Observations discontinued during winter.

DIVERSIONS. None.

REGULATION. None.

ACCURACY. Stage-discharge relation changed April 1-19. Rating curves fairly 

well defined. Gage readto hundredths twice daily. Daily discharge ascertained by applying mean daily gage height to rating table. Records good.
98 SURFACE WATER SUPPLY, 1925, PART XII A

Discharge measurements of Stranger Creek at Meteor, Wash., during the year

ending September SO, 1925

Date

Mar. 18.. ......

May3 ..........

Gage 

height

Feet 

0.84

1.32

Discharge

Sec.-ft. 

24.6

78.1

Date Gage 

height

Feet 

0.75

.17

Discharge

Sec.-ft. 

19.2

fi9

Date Gage 

height

Feet 

0.17

Discharge

Sec.-ft. 

0.58

Daily discharge, in second-feet, of Stranger Creek at Meteor, Wash., for the year 

ending September SO, 1925

Day

1. ...

2....

3_...

4....

5 __

6 ....

7 ....

8 

9....

10- 

11 ....

12 .

13 __ .

14 ....

15 __ -

Apr.

29

30

32

36

43

46

56

66

72

81

97

114

130

139

142

May

91

89

78

75

74

74

72

70

69

69

63

59

55

53

49

June

21

20

20

19

17

19

20

18

19

18

17

17

16

16

15

July

8.8

8.5

8.5

8.1

7.8

7.5

7.1

7.1

6.8

6.5

6.5

6.2

5.9

5.4

5.4

Aug.

1.8

1.8

1.5

1.5

1.2

1.0

.7

.7

.5

.5

.5

.5

.4

.5

.7

Sept.

0.2

.2

.2

.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

Apr.

153

165

168

180

180

170

160

149

139

123

115

111

109

105

96

May

46

42

39

37

35

38

35

34

31

29

28

27

26

24

23

23

June

14

14

14

13

12

12

12

12

12

12

11

11

9.6

9.2

8.8

July

5.1

4.5

4.3

4.3

4.?

4.S

4.3

43

38

38

1.3

i.3

2.9

2.5

2.1

2.1

Aug.

0.7

.7

.7

.5

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

Sept.

0.4

.5

.6

1.0

.7

.7

.7

.7

.7

.7

.8

1.4

1.0

1.1

1.0

Monthly discharge of Stranger Creek at Meteor, Wash., for the year ending September

SO, 1925

April....... _......_.. ................................

May ________________ .. .................

June. _________ _

July- ........................ ........ .........

August - .-. ... _ .__ _. 

September- ______ __ _____ . .. ..........

The period ______________ . ...........

Maximum

180

91

21

8.8

1.8

1.4

Minimun

2f

2i

4.8

2.1

.2

.2

Mean

108

50.2

15.0

5.33

.61

.50

Run-off in

acre-feet

6,430

3,090

893

328

37.5

29.8

10, 800

SPOKANB EIVER BASIN 

COETTE D'ALSHE EIVER HEAR CATAIDO, ITAHO

LOCATION. In sec. 26, T. 49 N., R. 1 E. Boise meridian, to Shoshone County, 1^

miles above Cataldo and 3 miles below junction of North and South Forks. 

DRAINAGE AREA. 1,220 square miles (measured by engineers of Washington

Water Power Co. on large scale map of Spokane Hver Basin compiled from

best data available). 

RECORDS AVAILABLE. April 25, 1911, to December 3L , 1912; July 29, 1920, to

September 30, 1925. 

GAGE. Inclined staff on right bank; installed Augist 4, 1921; read by Lola

Wilcox. Elevation of gage datum about 2,100 feet above sea level. 

DISCHARGE MEASUREMENTS. Made from cable aboul 50 feet above gage or by

wading. 

CHANNEL AND CONTROL. Channel straight for 500 fe<t above and 1,500 feet below

gage. Left bank high and wooded; not subjectto overflow. Right bank is

overflowed at gage height about 50 feet. Low-water control is boulder and

gravel riffle about 1,500 feet below gage; high-vater control indeterminate,

probably long stretch of river channel.
SPOKANE RIVER BASIN 99

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 51.3 feet from 

high-water mark on February 5 (discharge, 27,600 second-feet); minimum 

stage recorded, 37.15 feet October 23-25 (discharge, 280 second-feet).

1911-1912; 1920-1925: Maximum stage recorded, that of February 5, 

1925; minimum stage recorded, 37.0 feet August 27, 1923 (discharge, 215 

second-feet). Discharge probably lower in December, 1922, while gage was 

not being read.

ICE. Stage-discharge relation seriously affected by ice during severe winters; 

flow estimated from discharge measurements, observer's notes, and weather 

records.

DIVERSIONS. None.

REGULATION. None.

ACCURACY. Stage-discharge relation changed February 6; affected by ice 

December 17 to January 16. Rating curves well defined. Gage read to 

hundredths once daily. Daily discharge ascertained by applying daily gage 

heights to rating table. Records good.

COOPERATION. Gage-height record and some discharge measurements furnished 

by Washington Water Power Co.

Discharge measurements of Coeur d'Alene River near ICataldo, Idaho, during the 

year ending September SO, 1925

Date

Nov. 6. ........

Jan. 7- 

Gage 

height

Feet 

38.95

37.95

39.22

38.77

Discharge

Sec.-ft. 

1,230

588

952

924

Date

Feb. 6. .........

Mar. 11 

MavlS... ......

Gage 

height

Feet 

39.53

46.45

41.26

43.58

Discharge

Sec.-ft. 

1,680

14,100

3,280

7.460

Date

July 2.. 

July 31 ......

Sent. 8. ..

Gage 

height

Feet 

40.96

39.07

38.18

37.88

Discharge

Sec.-ft. 

2,920

1,170

630

477

Daily discharge, in second-feet, of Coeur d'Alene River near Cataldo, Idaho, for the 

year ending September 30, 1925

Day

1. ____ .

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

3...... __ .

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

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

6 .......

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

8 .......

9 ........

10 ........

11. ...

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

13 ........

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

15.. ..

16 . ....

17. _ ... _ .

18.. ..

19.. ..

20 ...

21.. ......

22 -..--..

23 ......

24 .......

25

26 

27. 

28 

29 ..

30 

31 

Oct.

350

400

400

400

360

340

320

320

320

340

320

300

OAfl

300

320

340

320

320

300

280

280

280

300

340

380

555

710

Nov.

765

765

765

1,290

1,430

1,290

945

885

825

765

710

605

580

555

532

765

1,740

2,060

1,900

1,900

1,580

1,080

1,080

1,010

825

710

Dec.

655

682

765

765

765

710

682

631

580

655

1,290

3,630

4,930

7,270

7,090

5,720

4,050

2,770

1,900

1,430

1,010

> 800

Jan.

885

945

945

945

1,010

952

924

885

825

710

682

630

630

630

630

1,010

1,010

1,220

2,060

2,770

1,740

1,660

8,840

Feb.

12,900

10,500

17, 200

20, 400

23, 700

13, 700

10, 400

6,230

A Qcrt

4,280

3,810

3,380

3,100

9 84.fi

2.380

2,280

3,520

5,300

4,440

3 Qfin

Mar.

3,520

3,520

3,960

4,780

6,430

6,040

5,300

6,430

4,280

3,380

3,100

2,600

2,490

2,380

2,080

2,840

3,100

5,850

11,300

9,090

7,630

7,030

6.230

Apr.

7,030

7,630

8,460

11, 900

7,830

13, 200

15,000

14,500

15,300

17.500

20,000

21, 700

14, 500

14,200

15,000

12,600

10,400

7,630

7,430

7,030

6,230

5,850

5,660

5,850

5,850

May

7,830

7,830

7,230

6,830

7,230

8,250

9,090

7,230

6,230

6,430

7,030

7,230

7 4^n

8,040

6,230

6,430

7,030

8,670

8,040

7,030

4,950

4,440

4,280

4,120

3.810

June

3,240

3,380

3,240

2,970

2,840

2,720

2,600

2,490

2,490

2,490

2,380

2,380

2,180

2,080

1,960

1,900

1,900

1,810

1,810

1,720

1,640

1,560

1,400

1,330

1,260

July

1,190

1,190

1,120

1,080

1,030

990

990

930

930

870

870

870

810

810

810

755

755

755

755

700

700

770

700

755

870

755

700

672

618

590

618

Aug.

590

590

562

535

535

510

510

510

510

510

510

485

510

562

618

618

590

562

510

485

485

460

485

485

485

485

485

460

460

435

410

Sept.

410

385

385

385

362

385

385

485

460

435

435

410

385

385

385

362

385

385

385

374

362

320

340

340

340

340

340

320

340

340

NOTE. Mean discharge Feb. 5 estimated from high-water marks. 

10, 17, July 4, 5, 22, and Sept. 20; discharge interpolated.

Gage not read Feb. 4, Apr. 16, June
100 SURFACE WATER SUPPLY, 1925, PABT XII A

Monthly discharge of Coeur d'Alene River near Cataldo, Idaho, for the year ending

Septen&er SO, 1925

[Drainage area, 1,220 square miles]

Month

November _________________

December. _______________

February.. _________________

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

May . .. _______________

June ____________________

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

August ___________________

September _________________

The year _______________

Discharge in second-feet

Maximum

710 

2,060 

7,270 

8,840 

23,700 

11,300 

21, 700 

9,090 

3,380 

1,190 

618 

485

23,700

Minimum

280 

510 

580 

630 

2,180 

2.080 

5,660 

3,810 

1,260 

590 

410 

320

280

Mean

359 

1,020

1,810 

1,430 

6,770 

4,840 

11,300 

6,740 

2,150 

835 

514 

378

3,140

Per

square 

mile

0.294 

.836 

1.48 

1.17 

5.55 

3.97 

9.26 

5.52 

1.76 

.684 

.421 

.310

2.57

Run-off

Inches

0.34 

.93

1.71 

1.35 

5.78 

4.58 

10.33 

6.36 

1.96 

.79 

.49 

.35

34.97

Acre-feet

22,100 

60,700 

111,000 

87,900 

376, 000 

298,000 

672,000 

414,000 

128,000 

51,300 

31,600 

22,500

2, 280, 000

COEUB D'AIENE IAKE AT COEUB D'AIEHE, IDAHO

LOCATION. In SW. % sec. 13, T. 50 N., R. 4 W., at Johnson Wharf, 800 feet 

southeast of railroad station at Coeur d'Alene, Kootenai County.

DRAINAGE AREA. 3,750 square miles (measured by engineers of Washington 

Water Power Co. on map of Spokane River Basin compiled from best data 

available).

RECORDS AVAILABLE. February 15, 1905, to September 30, 1925; April 26, 1903, 

to February 14, 1905, at St. Joe Boom Co.'s gage at mouth of St. Joe River.

GAGE. Stevens continuous water-stage recorder at wharf; installed March 24, 

1921; inspected by employees of Washington Water Power Co. Prior to 

March 24, 1921, gage was vertical staff at same site. The original gage installed by the Geological Survey February 11, 1905, was referred to the 

Geological Survey bench mark in the southeast corner of the Merriam 

Building at the corner of Sherman and Fourth Streets in the city of Coeur 

d'Alene, Idaho. The bench mark, described above, is firmly set in a substantial building which has not been moved. Accordingly the elevation of 

the bench mark should be the same now as when it was set. Levels referred 

to the bench mark, however, have sometimes been misinterpreted because 

various adjustments in level nets have resulted in changing its accepted 

elevation. These accepted elevations are as follows: 

Original, as published in the appendix of the Twenty-first Annual Feet

Report of the Geological Survey, volume 1, page 518 __-- 2, 157. 404 

Second, as published in Geological Survey Bulletins 487 and 567,

pages 24 and 79, respectively___________________-_---_-- 2, 157. 909

Third, as determined by adjustment to fit the United States

Coast and Geodetic Survey precise level net________________ 2, 154. 509

Coeur d'Alene Lake stages, published in Water-Supply Paper 272 and 

subsequent water-supply papers, including this one, refer to the original 

accepted elevations of the bench mark, i. e., 2,157.404 feet; to obtain mean 

sea level elevation corresponding to the last (third) accepted elevation of the 

bench mark, add 2,097.105 feet to published stages.

EXTREMES OP STAGE. Maximum stage recorded during year from water-stage 

recorder, 33.45 feet at 7 p. m. April 19; minimum stage recorded, 23.14 feet 

at 2 a. m. October 27.

1903-1925: Maximum stage recorded, 36.00 feet at 6.15 p. m. January 3, 

1918; minimum stage recorded, 19.9 feet on October 10-12, 1904, September 

24 and 25, 1905, and October 14 to November 3, 1906.

The maximum stage known to early settlers, 37.6 feet as determined from 

high-water marks, occurred May 31, 1894.
SPOKANE BIVEB BASIN 101

DIVERSIONS. None.

REGULATION. Considerable storage is used by the Washington Water Power

Co. Regulation is affected by Taintor gates and bear-trap dam at Post

Falls. 

ACCURACY. Daily mean gage heights have been determined by inspection from

gage-height graph. Records excellent. 

COOPERATION. Gage-height record furnished by Washington Water Power Co.

Daily gage height, in feet, of Coeur d'Alene Lake at Coeur d'Alene, Idaho, for the 

year ending September SO, 1925

Day

\... ...........

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

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

4 __ ..........

5. ___ ........

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

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

8 __ ..........

9-.._. ________

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

11.... . . .

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

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

14. ... .

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

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

17.. _ . ..... 

18. _ ..........

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

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

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

22 

23 ..........

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

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

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

27 ..........

28 ......

29 . 

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

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

Oct.

23.69

23.71

23.67

23.65

23.62

23.62

23.59

23.55

23.51

23.51

23.49

23.46

23.44

23.42

23.40

23.37

23.33

23.32

23.29

23.28

23.24

23.23

23.19

23.16

23.17

23.20

23.27 

23.29

23.35

Nov.

23.43

90 CO

23.57

23.67

23.78

23.90

24.00

24.05

24.14

24.21

24.26

24.29

24.30

24.30

24.30

24.31

o/t oo

24.33

24.39

t)A KA

24 68

24.73

24.72

24.63

24.49

24.50

24.56

24.57

24.56 

24.55

Dec.

24.56

9d ^Q

24.59

24.55

24.47

24.31

24.21

24.19

24.20

24.22

24.32

24.62

24.95

25.38

25.70

25.72

25.60

25.42

OK 97

24. 84

24.66

24.52

24.49

24.50

94. fiO

24.57

24.58

Jan.

24.12

23.99

23.84

23.80

23.81

23.73

23.71

23.69

23.69

23.72

23.74

23.72

23.72

23.70

23.68

23.64

23.66

23.60

23.53

23.49

23.49

23.55

23.74

23.78

23.76

23.69

23.66 

23.80

24.34

Feb.

25.32

27.04

28.06

9Q 9fi

30.27

30.80

30.88

30.70

Oft 07

29.98

29.16

28.75

28.34

27.98

27.63

27.28

26.95

26.68

26.45

26.23

oft 90

26.40

26.52

OR RQ

Mar.

26.53

26.45

26.39

26.32

26.34

26.44

26.55

26.60

26.57

26.36

26.06

25.91

25.75

25.56

25.43

25.26

25.11

9K AO

24.99

25.05

25.47

25.90

26.36

26.98 

27.18

Apr.

27.40

27.49

27.63

27.90

28.71

29.17

29.65

30.12

31.12

31.75

32.37

32.87

33.11

33.15

33.30

33.42

33.40

33.17

32.16

31.79

31.40

31.03

30.67

30.37 

30.17

May.

30.00

90 04

29.89

29.83

29.79

29.87

90 QO

30.12

30.22

30.21

30.18

30.10

30.07

30.08

30.10

30.14

30.26

30.28

oft 07

30.41

30.52

30.70

oft 70

30.64

30.47

30.01

29.80

9Q R.9

29.38

June

29.15

28.90

28.60

28.34

28.07

27.83

27.60

27.36

27.13

26.95

26.79

26.62

26.53

26.42

26.45

26.49

26.47

26.48

26.48

26.48

26.48

26.48

26.46

26.46

26.51

26.45

26.42 

26.43

July

26.45

26.46

26.48

26.49

26.47

26.44

26.46

26.49

26.50

26.47

26.45

26.45

26.46

26.48

26.46

26.45

26.43

26.42

26.41

26.41

26.40

26.40

26.39

Oft OQ

26.40

26.40

26.39

26.37

26.30

Aug.

26.29

26.24

26.23

26.16

26.12

26.07

26.00

25.94

25.90

25.86

25.81

25.75

25.72

25.71

25.67

25.61

25.50

25.45

25.41

25.39

25.32

25.28

25.21

25.16

25.11

25.00

24.92 

24.84

24.79

Sept.

24.73

24.69

24.62

24.60

94 W

24.50

24.44

24.42

24.39

24.35

24.29

24.24

24.21

24.19

24.15

24.10

24.07

24.03

23.98

23.93

23.90

23.87

23.83

23.79

23.75

23.68

23.60

23.56

23.55

NOTE. Add 2,100 feet to gage heights to obtain mean sea level elevations. 

SPOKAHE RIVER AT POST FAILS, IDAHO

LOCATION. In sec. 4, T. 50 N., R. 5 W. Boise meridian, a quarter of a mile 

below power plant of Washington Water Power Co., three-fourths of a 

mile below intake of Spokane Valley Farm Co.'s canal and 1 mile west of 

Post Falls, Kootenai County.

DRAINAGE AREA. 3,880 square miles (measured by engineers of Washington 

Water Power Co. on map compiled from best information available).

RECORDS AVAILABLE. January 1, 1913, to September 30, 1925.

GAGE. Stevens water-stage recorder on right bank since November 22, 1920; 

inspected by employees of Washington Water Power Co. Elevation of zero 

of gage 2,000 feet above sea level.

DISCHARGE MEASUREMENTS. Made from cable 600 feet above gage.

CHANNEL AND CONTROL. River bed composed of coarse gravel and boulders; 

shifts during floods. One channel at all stages.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, from waterstage recorder, 75.2 feet on April 19 (discharge, 30,600 second-feet); minimum stage, 65.66 feet at 1 and 3 p. m. July 25 (discharge, 710 second-feet). 

1911-1925: Maximum stage recorded, 79.20 feet at 7.30 a. m. May 18, 

1917 (discharge, 39,800 second-feet); minimum stage recorded, 65.15 feet 

at 11 a. m. September 5, 1922 (discharge, 578 second-feet).
102 SURFACE WATEK SUPPLY, 1925, PAKT XII A

ICE. Stage-discharge relation not affected by ice.

DIVEBSION. Spokane Valley Farms Co.'s canal diverts above gage for irrigation. 

Mean diversion during 1925, 91 second-feet.

REGULATION. Varying load on power plant causes fluctuation in stage. Storage 

in Coeur d'Alene Lake partly regulated by operation of gates in dam at Post 

Falls.

ACCURACY. Stage-discharge relation permanent; rating curve well denned. 

Operation of water-stage recorder satisfactory except as stated in footnote 

to table of daily discharge. Daily discharge ascertained by applying to 

rating table mean daily gage height determined by inspection from gageheight graph or by use of discharge integrator. Records excellent.

COOPEBATION. Gage-height record and some discharge measurements furnished 

by the Washington Water Power Co.

Discharge measurements of Spokane River at Post Falls, Idaho, during the year 

ending September 30, 1925

Date

Nov. 20 _

Mar. 10 _ . _ --

Apr. 15 

Gage 

height

Feet 

67.48

70.86

75.14

Discharge

Sec.-ft. 

2,370

11, 000

29,500

Date

May 18. 

July 22-.. ...

Gage 

height

Feet

72.15

66.27

Discharge

Sec.-ft. 

19,800

16,400

1,060

Date Gage 

height

Feet 

66.66

Discharge

Sec.-ft. 

1,340

Daily discharge, in second-feet, of Spokane River at Post Falls, Idaho, for the year 

ending September 30, 1925

Day

1 __ ....

2 _ ......

3 _ ......

4 __ ....

5.... .....

6.. .......

7.........

8.........

9.........

10 

11 

12.........

13... _ -_

14.. ___ .

15.. _ ....

16 

17 

18 

19.........

20.........

21 _ ......

22. 

23 

24.........

25. ....

26 

27 

28.........

29.........

30 

31. 

Oct.

900

928

956

984

1,010

1,040

956

1,010

1,080

1,080

1,010

957

914

906

950

973

968

997

1,010

998

908

896

900

900

870

845

870

890

898

890

881

Nov.

952

920

907

914

870

946

996

920

1,000

1,100

1,090

1,150

1,170

1,140

1,310

2,020

5,890

6,700

4,240

1,690

1,670

2,140

1,960

1,640

Dec.

1,450

1,820

2,740

3,980

5,160

3,620

2,500

1,340

3,100

6,180

7,320

7,930

8,490

8,560

8,640

8,720

8,790

7,000

2,500

6,940

6,430

Jan.

5,520

5,260

3,000

2,000

3,690

3,280

3,790

3,840

5,530

5,610

5,610

5,620

6,120

6,930

Feb.

8,790

10, 400

12, 300

16, 600

20, 800

22, 400

91 nnfl

20,000

18, 700

17, 900

16, 600

15,800

15, 000

14, 200

13, 400

12, 500

11, 700

10, 900

10, 100

10, 100

10, 800

11, 200

11, 800

Mar.

11, 200

10, 800

10, 800

11, 600

11, 600

11, 600

10, 800

10, 400

10,100

9,750

9,420

9,100

8,790

8,490

8,200

7,920

7,920

7,920

8,200

8,490

8,790

10, 800

1 9 7flO

Apr.

13, 100

13,400

13,400

14,200

15, 000

16, 200

17, 400

18,700

20,000

21, 400

23,300

25,300

27,400

29,000

30, 100

30, 100

30, 100

30, 100

30, 600

30, 100

29, 500

28, 400

27. 400

26, 300

25, 300

23,800

22, 800

21, 900

21,000

20,000

May

19,600

19, 600

19, 200

19, 200

19, 200

18, 700

19, 200

19, 600

19, 600

19, 600

19, 600

19, 200

19,200

18, 700

19, 200

19, 200

19, 200

19, 200

18,700

18,700

19,200

19,600

20,000

20,000

20,000

19,600

18, 700

18,300

17,900

17, 000

June

15, 800

15, 400

14, 600

14, 200

13, 400

13, 100

12, 700

11, 900

11, 600

11, 200

10, 800

10, 400

9,360

6,750

4, 800

6,460

6,410

5,660

5,630

5,590

5,580

5,690

5,350

4,360

4,240

3,890

4,380

4,220

3,480

2,680

July

2,540

2,280

2,240

2,680

2,540

1,760

1,140

955

1,550

1,960

1,680

1,140

978

1,140

1,280

1,310

1,290

1,230

980

1,030

1,070

1,020

1,070

1,140

920

840

1,100

1,220

1,210

1,210

1,260

Aug.

1,230

1,190

1,360

1,240

1,250

1,340

1,400

1,420

1,400

1,430

1,480

1,490

1,440

1,420

1,460

1,530

1,600

1,660

1,460

1,480

1,610

1,650

1,670

1,660

1,500

1,640

1,700

1,680

1,710

1,640

1,550

Sept.

1,360

1,410

1,390

1,250

1,150

1,160

1,200

1,330

1,400

1 380

1,290

1,130

1,170

1,260

1,250

1,280

1,350

1,300

1,210

1,210

1,270

1,280

1,300

1,360

1,310

1,180

1,190

1,270

1,300

1,330

NOTE. Water-stage recorder not operating Oct. 2-5, Dec. 16-18, 20-29, Jan. 4-18, 26, 27, 29, Feb. 5-8, 

16-21; discharge estimated.
SPOKANE RlVEB BASIN 103

Monthly discharge of Spokane River and Spokane Valley Farms Co.'s canal at 

Post Falls, Idaho, for the year ending September SO, 1925

[Drainage area, 3,880 square miles]

Month

March.. __________ __ ________

April...- __________________

July..-.... ...............

Discharge iu second-feet

River

Maximum

1,080 

6,760 

8,790 

6,930 

22, 800 

12, 700 

30, 600 

20,000 

15, 800 

2,680 

1,710 

1,410

30, 600

Minimum

845 

870 

1,340

8,790 

7,920 

13, 100 

16, 600 

2,680 

840 

1,190 

1,130

840

Mean

948 

1,950 

4,970 

3,780 

14, 700 

10, 200 

23, 200 

19,100 

8,320 

1,410 

1,490 

1,280

7,530

Canal 

mean

106 

182 

190 

252 

241 

112

Combined

Mean

948 

1,950 

4,970 

3,780 

14,700

10,200

23, 300 

19, 300 

8,510 

1,660 

1,730 

1,390

7,640

Per

square 

mile

1.97

Run-off (combined)

Inches

26.74

Acre-feet

58,300 

116,000 

306, 000 

232, 000 

816,000 

627, 000 

1, 390, 000 

1, 190, 000 

506,000 

102,000 

106,000 

82, 700

5, 530, 000

NOTE. Monthly figures showing discharge in second-feet per square mile, and run-off in inches are not 

published owing to regulation by Coeur d'Alene Lake; the yearly figures represent more nearly the natural 

discharge and run-off.

SPOKANE RIVER AT SPOKANE, WASH.

LOCATION. In sec. 13, T. 25 N., R. 42 E., opposite Cochran Street, Spokane, 

Spokane County, a quarter of a mile above high railroad viaduct, and half a 

mile above Latah Creek.

DRAINAGE AREA. 4,350 square miles (measured by engineers of Washington 

Water Power Co. on maps compiled from best information available).

RECORDS AVAILABLE. April 1, 1891, to September 30, 1925.

GAGE. Stevens continuous water-stage recorder on right bank at Cochran Street 

and 1 mile below Monroe Street Bridge; used since July 1, 1921. Elevation 

of gage datum about 1,700 feet above sea level.

DISCHARGE MEASUREMENTS. Made from cable at gage.

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

all stages. Control is well-defined riffle one-fourth mile below gage; permanent. Stage of zero flow estimated at gage height 14.5 feet on October 

7, 1922.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, from waterstage recorder, 26.3 feet at noon on April 20 (discharge, 31,700 second-feet); 

minimum stage, 17.36 feet at 5 a. m. October 24 (discharge, 1,150 secondfeet).

1891-1925: Maximum discharge recorded, 49,000 second-feet May 31, 

1894; minimum stage, 16.70 feet at 8.30 a. m. October 21, 1922 (discharge, 

500 second-feet).

ICE. Stage-discharge relation not affected by ice.

DIVERSION. Water is diverted above station for irrigation by Spokane Valley 

Farms Co.

REGULATION. Flow partly regulated by storage in Coeur d'Alene Lake since 

July, 1906.

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

Operation of water-stage recorder satisfactory. Daily discharge ascertained 

by use of discharge integrator or, when discharge was above 8,600 second-feet, 

by applying to rating table mean daily gage height determined from recorder 

graph by inspection. Records excellent.

COOPERATION. Gage-height record and some discharge measurements furnished 

by Washington Water Power Co.
104 SURFACE WATEK SUPPLY, 1925, PAKT XII A

Discharge measurements of Spokane River at Spokane, Wash., during the year 

ending September SO, 1925

Date

Oct. 9.. .

Feb. 16 

Gage 

height

Feet 

17.71

22.95

25.36

Discharge

Sec.-ft. 

1,630

15, 300

26, 600

Date

Apr. 16.... 

May 19 ____

July 24.. .......

Gage 

height

Feet 

26.10

24.07

17.87

Discharge

Sec.-ft. 

29,900

20,600

1,830

Date

Sept. 11 __ ...

Gage 

height

Feet 

18.09

Discharge

Sec.-ft. 

2,030

Daily discharge, in second-feet, of Spokane River at Spokane, Wash., for the year 

ending September SO, 1925

Day

1. __ ....

2.........

3 

4.. ...... .

5 

6 .

7 

8. . ....

9 ____ .

10 _ ......

11 

12 ___ ....

13 

14. ___ 

15 

16 

17 .

18 

19 ___

20. 

21 

22 

23 

24.........

25. .

26.........

27. 

28 

29.........

30 

31 

Oct.

1,410

1,390

1,360

1,390

1,480

1,490

1,530

1,400

1,560

1,560

1,530

1,490

1,440

1,430

1,390

1,420

1,450

1,490

1,460

1,460

1,440

1,410

1,420

1,370

1,410

1,370

1,370

1,430

1,370

1,400

1,400

Nov.

1,480

1,360

1,380

1,370

1,400

1,400

1,410

1,520

1,410

1,430

1,500

1,500

1,590

1,570

1,640

1,870

1,660

1,600

1,680

2,000

3,230

5,290

6,170

6,560

5,290

2,530

2,090

2,420

2,410

2,180

Dec.

2,020

2,040

2,710

3,510

5,070

4,360

3,230

2,460

1,970

1,910

2,330

5,180

6,900

7,410

8,360

8,820

9,130

8,940

8,650

8,360

7,900

7,330

6,660

5,820

2,740

2,540

2,620

2,690

3,850

6,320

6,380

Jan.

5,800

5,200

4,920

3,500

3,430

3,650

3,150

2,760

2,410

2,200

2,290

2,600

2,650

2,600

2,590

2,540

2,520

3,890

3,930

4,150

4,640

5,440

5,510

5,690

5,750

5,720

5,700

5,820

6.480

Feb.

8,060

9,870

11,600

13, 600

16, 500

19, 100

21, 500

22, 500

22, 000

21,000

20, 100

18, 700

17, 800

16, 900

16,200

15, 000

14,300

13,600

12,900

12,200

11,600

11,200

11,200

11,200

11, 200

11, 600

11,900

11,900

Mar.

11,600

11,600

11,200

11,200

11,200

11,200

11,600

11,900

11,600

11,600

11,200

11,200

10, 900

10, 500

9,870

9,550

9,230

8,920

8,610

8,610

8,310

8,310

8,310

8,610

8,920

9,870

10, 900

11, 900

12,200

12, 900

13, 300

Apr.

13,600

14,000

14, 300

14, 700

15,800

16, 500

17, 400

18, 700

20,100

21, 500

23,000

25,000

26, 600

28,200

29,900

30,500

30,500

31, 100

31,100

31,100

31, 100

29,900

28, 800

27, 600

26, 600

25,000

24,000

23,000

22,000

21,000

May

20,500

20,100

20,100

19, 600

19, 600

19, 600

19, 600

19, 600

20,100

20,100

20,100

19,600

19, 600

19,600

19, 600

19,600

20, 100

20, 100

20,100

19,600

20,100

20,500

21,000

21, 000

21,000

20,100

19,600

18, 700

18,200

17,800

17, 400

June

16, 500

16,200

15,800

15, 400

14,700

14,300

13,600

13, 300

12,900

12,600

12,200

11,600

11, 200

8,420

6,460

7,240

7,520

6,780

6,600

6,610

6,360

6,500

6,290

5,460

3,770

4,270

4,970

4,930

4,630

3,690

July

3,480

3,120

3,050

3,320

3,380

2,920

2,160

1,900

2,010

2,720

2,410

2,060

1,880

1,810

1,980

2,020

2,010

1,990

1,870

1,690

1,820

1,820

1,780

1,850

1,820

1,600

1,700

1,800

1,900

1,920

1,920

Aug.

1,940

1,910

2,020

1,970

1,950

1,940

2,060

2,000

2,000

1,970

2,010

2,030

2,030

1,990

2,020

2,090

2,090

2,160

2,090

2,000

2,020

2,190

2,200

2,200

2,130

2,070

2,150

2,200

2,180

2,170

2.160

Sept.

2,040

1,940

1,960

1,940

1,810

1,790

1,850

1,930

2,020

2,010

2,040

1,950

1,780

1,950

1,940

1,950

2,020

2,020

1,960

1,840

1,960

1,900

1,870

1,890

1,890

1,860

1,720

1,810

1,860

1,870

Monthly discharge of Spokane River at Spokane, Wash., for the year ending September 30, 1925

[Drainage area, 4,350 square miles]

Discharge in second-feet

Month

April. 

July........................... .. _ .

Maximum

1,560

6,560

9,130

6,480

22,500

13,300

31,100

21,000

16, 500

3,480

2,200

2,040

31,100

Minimum

1,360

1,360

1,910

2,200

8,060

8,310

13,600

17,400

3,690

1,910

1,720

1,360

Mean

1,440

2,300

5,100

4,000

14,800

10,500

23,800

19, 800

9,360

2,180

2,060

1,910

8,030

Per 

square 

mile

1.85

Inches Acre-feet

88,500

137,000

314, 000

246 000

822,000

1, 420, 000

1, 220, 000

557,000

134,000

127,000

114,000

5, 830, 000

Run-oflE

NOTE. Monthly discharge in second-feet per square mile and run-oflE in inches not computed owing to 

regulation. Yearly figures closely represent the natural flow.
SPOKANE EIVEE BASIN 105

SPOKANE BIVER BELOW LITTLE FALLS, NEAR LONG LAKE, WASH.

LOCATION. In NW. ^ sec. 19, T. 27 N., R. 39 E., just above Chamokane Ferry, 

l}4 miles below Little Falls power plant of Washington Water Power Co., 

4 miles below Chamokane Creek, and 5 miles below Long Lake, Lincoln 

County.

DRAINAGE AREA. 6,380 square miles (measured by engineers of Washington 

Water Power Co. on maps compiled from best data available).

RECORDS AVAILABLE. November 5, 1912, to September 30, 1925.

GAGE. Stevens continuous water-stage recorder on left bank; gage datum 1,200 

feet above mean sea level.

DISCHARGE MEASUREMENTS. Made from cable 50 feet below gage.

CHANNEL AND CONTHOL. Bed composed of large boulders; shifting at high 

stages. Banks high. One channel at all stages. No noticeable control 

below gage.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, from waterstage recorder, 89.0 feet from 9.30 to 11 a. m. April 16 (discharge, 36,500 

second-feet); minimum stage, 73.4 feet at 4 a. m. November 19 (discharge, 

1,100 second-feet).

1912-1925: Maximum stage, 90.32 feet at 8.30 p. m. May 18, 1917 (discharge, 41,300 second-feet); minimum discharge probably below 1,100 secondfeet from 3 to 4.30 p. m. September 1 and from 2.30 to 6.30 p. m. September 

27, 1924, when recorder indicated a stage of less than 73.4 feet.

ICE. Stage-discharge relation not affected by ice.

DIVEHSIONS. Water is diverted by the Spokane Valley Farms Co. for irrigation 

above the station.

REGULATION. Flow affected considerably by power regulation at Little Falls 

and Long Lake, and slightly by power regulation at Ninemile, Spokane, and 

Post Falls. Low-water flow is affected by regulation of storage in Coeur 

d'Alene Lake.

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

between 2,000 second-feet and 30,000 second-feet. Operation of waterstage recorder satisfactory except as noted in footnote to table of daily discharge. Daily discharge ascertained by use of discharge integrator or by 

applying to rating table mean daily gage heights determined from recorder 

graph by inspection. Records excellent.

COOPEHATION. Gage-height record and some discharge measurements furnished 

by Washington Water Power Co.

Discharge measurements of Spokane River below Little Falls, near Long Lake, 

Wash., during the year ending September SO, 1925

Date

Oct. 10.........

Nov. 25.........

Dec. 15.... _ ..

Gage 

height

Feet 

75.71

76.92

80.51

Discharge

Sec.-ft. 

2,500

4,000

10,500

Date

Mar. 13.........

May 20.. -.-

Gage 

height

Feet 

82.09

86.98

84.61

Discharge

Sec.-ft. 

14,400

28,100

21,600

Date Gage 

height

Feet 

76.34

Discharge

Sec.-ft. 

3,280
106 SURFACE WATER SUPPLY, 1925, PART XII A

Daily discharge, in second-feet, of Spokane River below Little Falls, near Long 

Lake, Wash., for the year ending September 30, 1925

Day

1 ____

2_ _ ....

3 _

4........

5 

6 

7 _ .... .

8.. ...

9 

10 

11 

12 

13 

14 

15.. .

16 

17 

18 . .

19 

20 

21- 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

Oct.

2,430

2,410

2,380

2,300

1,820

2,050

2,170

2,250

2,190

2,220

2,210

1,860

2,170

2,240

2,280

2,180

2,200

2,240

1,790

2,160

2,280

2,310

2,280

2,330

2,320

1,950

2,330

2,380

2,290

2,480

2,480

Nov.

2,330

1,920

2,280

2,290

2,330

2,320

2,420

2,290

2,030

2,290

2,260

2,360

2,310

2,310

2,250

1,880

2,260

2,320

2,610

2,750

4,790

4,140

7,310

8,060

5,240

3,660

2,280

3,310

3,520

3,080

Dec.

3,180

2,810

2,860

4,160

4,960

6,060

4,420

3,490

2,980

2,390

2,550

6,340

6,750

8,570

9,850

9,660

9,870

9,040

8,880

9,430

8,390

8,780

7,880

6,700

4,340

2,820

3,680

3,630

3,930

6,790

7,740

Jan.

7,020

6,470

4,860

5,230

4,130

3,710

4,400

4,320

3,580

3,320

3,150

3,200

2,330

3,970

3,030

3,400

3,790

2,980

3,580

5,400

4,910

5,270

8,930

10,300

8,120

6,390

7,120

7,490

11,200

19,700

Feb.

17, 600

16, 400

16, 700

20, 900

26, 200

28, 200

25, 200

25, 900

25, 2CO

24, 800

23, 800

22, 200

21, 300

18, 500

15,800

14,500

15, 200

13, 400

13, 800

12, 400

12,800

14, 900

14,000

14,300

14, 900

Mar.

14,400

14, 600

13,800

13, 600

13, 800

13, 800

13, 600

13, 300

14, 400

14,200

13, 200

12, 600

12, 900

11, 000

11, 200

12, COO

10, 200

9,280

10, 600

10, 800

10, 500

10,200

10, 500

9,650

10, 400

11,600

12,500

13, 600

14,200

14,800

14,300

Apr.

14,900

15,000

14,800

16, 700

16, 100

15,300

20, 300

21, 600

20, 600

24,800

27,000

28, 600

£9, 700

31, 500

34, 000

31, 500

32, 200

32, 900

34, 300

32, 900

31, 800

30, 700

29, 700

28,200

26, 500

25,500

25, 500

23, 200

23,200

May

22, 900

22,200

21,900

21, 600

21, 600

21, 600

21, 900

21, 900

22,500

21, 900

22, 200

22, 200

21, 600

21, 300

21, 300

21, 300

20,900

22, 200

21, 300

21, 600

21, 600

21, 900

22,500

22, 900

22,500

21, 900

21, 900

20, 600

20, 300

19, 400

18,800

June

19, 100

17, 600

17,000

16,300

15,900

14,700

14, 000

13, 900

13, 100

13, 300

12, 700

12, 200

11,000

9,500

7,440

6,370

9,130

7,270

7,590

7,440

7,280

7,450

6,810

6,360

4,850

5,040

5,990

5,640

5,920

4,470

July

4,080

4,350

3,700

3,920

4,050

4,090

3,140

2,950

2,540

2,590

4,070

2,690

2,690

2,750

2,620

2,500

2,500

2,400

2,110

2,710

2,760

2,650

2,670

2,750

2,200

2,360

2,670

2,680

2,690

2,660

2,690

Aug.

2,680

2,390

2,590

2,710

2,980

2,760

2,910

2,800

2,460

2,850

2,900

2,670

2,670

2,720

2,630

2,330

2,700

2,510

2,840

3,090

2,920

2,880

2,370

2,640

2,640

2,860

2,E90

2,850

2,910

2,290

2,620

Sept.

2,690

2,650

2,570

2,930

3,100

2,440

2,470

2,610

2,610

2,630

2,650

2,760

2,330

2,630

2,750

2,680

2,590

2,620

2,690

2,430

2,560

2,680

2,610

2,650

2,570

2,650

2,290

2,540

2,610

2,600

NOTE. Water-stage recorder not operating Dec. 16-18 and Jan. 27 to Feb. 10; discharge Dec. 16-18 determined from staff gage readings and recorded range of stage and Jan. 27 to Feb. 10 from record of tailrace 

elevations at Little Falls power plant.

Monthly discharge of Spokane River below Little Falls, near Long Lake, Wash., for 

the year ending September 30, 1925

[Drainage area, 6,380 square miles]

Month

January ______ ________ ________

March. _________________ _

May ____ ____________ _ _

July, . _

August ___ ......................

September- _ _____ _________

Discharge in second-feet

Maximum

2,480 

8,060 

9,870 

19,700 

28,200 

14,800 

34, 300 

22,900 

19, 100 

4,350 

3,090 

3,100

34,300

Minimum

1,790 

1,880 

2,390 

2,330 

12,400 

9,260 

14, 800 

18, 800 

4,470 

2,110 

2,290 

2,290

1,790

Mean

2,220 

3,040 

5,900 

5,730 

18, 500 

12,400 

25, 400 

21, 600 

10, 200 

2,940 

2,710 

2,620

9,360

Per 

square 

mile

1.47

Run-off

Inches

19.95

Acre-feet

136,000 

181,000 

363, 000 

352, 000 

1, 030, 000 

762, 000 

1, 510, 000 

1, 330, 000 

607,000 

181,000 

167, 000 

156, 000

6, 780, 000

NOTE. Monthly discharge in second-feet per square mile and run-off in inches not published owing to 

regulation. Yearly figures closely represent the natural discharge and run-off.
SPOKANE EIVEE BASIN 107

ST. JOE RIVER AT CAIDER, IDAHO

LOCATION. In see. 3, T. 45 N., R. 2 E. Boise meridian, at suspension bridge, 

150 feet southwest of Chicago, Milwaukee & St. Paul Railway station at 

Calder, Shoshone County, 5 miles below Marble Creek, and 11 miles east of 

St. Joe.

DRAINAGE AREA. 1,080 square miles (measured by engineers of Washington 

Water Power Company on map compiled from best data available).

RECORDS AVAILABLE. July 13, 1920, to September 30, 1925; April 14, 1911, to 

September 30, 1912, at station about 2J/2 miles farther downstream.

GAGE. Stevens continuous water-stage recorder on right bank at old ferry 

landing at Calder; installed December 22, 1920; inspected by C. P. Latham 

and Z. D. Turner. Elevation of gage datum about 2,100 feet above sea level.

DISCHARGE MEASUREMENTS. Made from cable or by wading.

CHANNEL AND CONTROL. Right bank high, not subject to overflow; left bank 

subject to overflow at high stages. Control is shifting gravel riffle 800 feet 

below gage.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 90.2 feet 

from high-water mark on February 3 or 4, while recorder was not operating 

and stage-discharge relation was affected by ice; discharge not determined. 

Minimum stage recorded, from recorder, 79.25 feet at 11.30 a. m. October 11, 

(discharge, 318 second-feet); minimum discharge probably occurred in 

January when stage-discharge relation was affected by ice.

1911-1912; 1920-1925: Maximum stage recorded from water-stage recorder, 

87.8 feet at 7 a. m. May 18, 1922 (discharge, 17,600 second-feet). Discharge 

may have been greater on February 2 or 3, 1925. Minimum stage recorded 

from recorder, 78.67 feet at 9.30 a. m. and from 11 a. m. to noon November 

25, 1922 (discharge, 194 second-feet). Discharge probably less in December, 

1922, when stage-discharge relation was affected by ice.

ICE. Stage-discharge relation seriously affected by ice; flow estimated from 

discharge measurements, observer's notes, and weather records.

DIVERSIONS. None.

REGULATION. Flash dam at Marble Creek used to store water for flushing logs 

down river during low water. Water released at regular intervals during 

driving season. Operation of dam causes diurnal fluctuation at gage of 

about 1 foot. Duration of effect about four hours.

ACCURACY. Stage-discharge relation changed gradually November 2-6, February 4, and gradually May 14 to September 9; affected by ice December 17 

to February 3. Rating curves used prior to February 4 well defined; later 

curves fairly well defined. Operation of water-stage recorder fairly satisfactory except as noted in footnote to table of daily discharge. Daily discharge ascertained by use of discharge integrator or by applying to rating 

table mean daily gage height determined from gage-height graph by inspection. Records good.

COOPERATION. Gage-height record and some discharge measurements furnished 

by Washington Water Power Co.

Discharge measurements of St. Joe River at Calder, Idaho, during the year ending

September SO, 1925

Date

Oct. 14.........

Nov. 19._......

Dec. 21.........

Jan. 10-. .

Gage 

height

Feet 

79.37

80.22

85.71

82.71

Discharge

Sec.-ft. 

351

873

1,560

764

Date

Mar. 5.... .....

May 13---...--

Gage 

height

Feet 

82.38

85.65

83.24

Discharge

Sec.-ft. 

3,110

13,200

11,300

4,450

Date

July 1 __ ..-..-

July 30.. ....

Sept 9...-..--..

Gage 

height

Feet 

81.78

80.24

79.96

Discharge

Sec.-ft. 

2,170

796

582

3223 2<
108 SURFACE WATER SUPPLY, 1925, PART XII A

Daily discharge, in second-feet, of St. Joe River at Colder, Idaho, for the year ending

September SO, 1925

Day

1 

2. ....

3. ... ....

4 

6.. ... 

7. . 

8... ... -

9. _ .... _

10 

11..... __ .

12 

13. 

14 

16 

16 

17 

18 

19 

20 

21 

22...... _ .. 23____

24.. _ ......

25 ___ 

26 . 

27 

28 

29 

30. __ ...

31.. __

Oct.

425

520

540

520

442

390

375

360

360

390

375

375

375

360

360

360

390

345

360

390

360

360

375

390

360

360

408

500

590

565

565

Nov.

760

880

1,010

1,010

1,010

1,010

820

820

760

730

700

640

590

615

640

640

615

540

880

1,980

1,770

2,330

1,870

1,390

1,230

1,080

940

880

880

820

Dec.

880

880

880

820

820

760

760

700

590

700

1,770

3,150

4,320

6,300

4,510

3,300

2,860

2,460

2,090

1,870

1,230

940

> 750

Jan.

900

800

2, 500

Feb.

,

Il3,000

16,200

7,670

5,550

4,000

3,150

2,720

2,210

2,090

1,980

1,770

1,770

1,670

1,570

1,480

1,390

1,390

1,390

1,570

1,670

1,980

2,460

2,330

2 910

2,090

1,980

Mar.

1,770

1,770

2,210

3,000

2,860

2,590

2,460

2,210

1,980

1,870

1,770

1,670

1,570

1,570

1,480

1,480

1,390

1,390

1,670

1,980

2,590

3,000

3,300

4,400

4,400

4,610

5,060

4,830

4,610

Apr.

5,800

6,320

7,950

9,640

9,350

10, 800

11, 500

12, 100

13, 100

14,100

15,200

16, 600

15,800

13, 800

12, 800

13, 800

15, 800

14, 100

11, 800

9,930

8,700

8,300

8,160

7,470

6,700

6,350

6,420

6,920

7,580

8,970

May

10,100

9,520

9,410

9,880

10,600

12,100

13,200

11,800

10, 400

10,200

10, 500

11,000

11, 700

12,100

12,500

13,100

12, 700

11, 900

12, 000

11,900

13,000

12,800

10,800

9,580

8,640

7,210

7,200

7,590

7,120

6,270

June

5,690

5,490

4,950

4,750

4,400

4,190

4,110

3,940

3,950

4,020

3,950

3,800

3,850

3,660

3,600

3,690

3,910

3,740

3,630

3,580

3,570

3,590

3,280

2,970

2,720

2,610

2,500

2,380

2,280

2,130

July

2,060

1,990

1,870

1,770

1,690

1,580

1,500

1,420

1,360

1,310

1,280

1,230

1,160

1,130

1,110

1,080

1,070

1,010

984

962

930

912

998

944

904

902

810

797

810

812

766

Aug.

747

728

702

680

650

681

626

580

634

616

608

598

638

708

921

673

633

621

598

604

572

556

574

751

629

562

539

558

548

536

512

Sept.

510

488

494

485

497

536

520

606

612

529

468

466

463

466

486

480

512

504

463

512

458

460

461

456

456

464

460

440

475

4.65

NOTE. Water-stage recorder not operating satisfactorily Nov. 4 and 5; discharge interpolated. Braced 

figures give mean discharge for periods indicated.

Monthly discharge of St. Joe River at Colder, Idaho, for the year ending September

80, 1925

[Drainage area, 1,080 square miles]

Month

October ___________________

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

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

May. ___ . . .. . ..............

July ... __

September.. ________________

The year ____ 

Discharge in second-feet

Maximum

590 

2,330 

6,300

5,060 

16,600 

13,200 

5,690 

2,060 

921 

612

Minimum

345 

540 

590

1,390 

1,390 

5,800 

6,270 

2,130 

766 

512 

440

Mean

414 

995 

1,620 

1,440 

4,050 

2,640 

10, 500 

10,500 

3,700 

1,200 

632 

490

3,170

Per

square 

mile

0.383 

.921 

1.50 

1.33 

3.75 

2.44 

9.72 

9.72 

3.43 

1.11 

.585 

.454

a 94

Run-off

Inches

0.44 

1.03 

1.73 

1.53 

3.90 

2.81 

10.84 

11.21 

3.83 

1.28 

.67 

.51

39.78

Acre-feet

25,500 

59,200 

99,600 

88,500 

225,000 

162,000 

625,000 

646,000 

220,000 

73,800 

38,900 

29,200

2,290,000
SPOKANE EIVEE BASIN 109

ST. MARIES RIVER AT LOTUS, IDAHO

LOCATION. In sec. 20, T. 45 N., R. 2 W. Boise meridian, 1,000 feet below Lotus 

station, on Elk River branch of Chicago, Milwaukee & St. Paul Railway, 

and 9 miles above St. Maries and mouth of river, Benewah County.

DRAINAGE AREA. 420 square miles (measured by engineers of Washington Water 

Power Co. on map compiled from best data available).

RECORDS AVAILABLE. July 9, 1911, to October 31, 1912, and July 15, 1920, to 

September 30, 1925.

GAGE. Since October 1, 1922, vertical and inclined staff on left bank; read by 

Mrs. Naoma Carter.

DISCHARGE MEASUREMENTS. Made by wading or from suspension footbridge 

at railway station.

CHANNEL AND CONTROL. Bed composed of gravel and small boulders. Channel 

straight for 200 feet below gage. Left bank high, not subject to overflow; 

right bank is overflowed at high stages. Control at riffle 150 feet below gage; 

shifting at high stages.

EXTREMES OP DISCHARGE. Maximum discharge occurred during period January 31 to February 3 while stage-discharge relation was affected by ice; 

stage and discharge not determined. Minimum discharge, 44 second-feet 

August 8-10.

1911-12; 1920-1925: Maximum stage recorded, 66.5 feet at 6 a. m. 

March 18, 1921 (discharge, 8,660 second-feet); discharge may have been 

greater during January 31 to February 3, 1925. Minimum discharge probably occurred during winter 1922-23, when stage-discharge relation was 

affected by ice and logs (discharge less than 30 second-feet).

ICE. Stage-discharge relation seriously affected by ice. Flow estimated from 

discharge measurements, observer's notes, and weather records.

ACCURACY. Stage-discharge relation changed January 31; affected by ice 

November 13-16, 29, 30, December 1-4, 17-31, January 1 to February 13, 

and by logs February 22 to March 10, March 20 to April 6, April 17-19, 

May 6-29, June 16 to September 30. Rating curves fairly well defined. 

Gage read to hundredths once daily. Daily discharge ascertained by applying daily gage height 1o rating table. Shifting-control method used April 

4-6, May 6-13, and June 16-29. Records good October to December; 

poor January and February, and fair thereafter.

COOPERATION. Gage-height record and some discharge measurements furnished 

by Washington Water Power Co.

Discharge measurements of St. Maries River at Lotus, Idaho, during the year ending

September 30, 1925

Date

Oct. 16.........

Nov. 17 _ .....

Dec. 30...... ...

Feb. 4..........

Gage

Feet 

2.75

2.99

6.38

5.64

7.42

Discharge

Sec.-ft. 

52.3

115

147

128

3,900

Date

Apr. 7.. .....

May 14...... _

a

Feet 

5.00

5.39

5.43

4.68

3.78

Discharge

Sec.-ft. 

1,600

2,620

2,630

973

488

Date

June 30 ____

July 29.........

Gage 

height

Feet 

3.29

3.13

2.93

Discharge

Sec.-ft. 

173

74.4

58.6
110 SURFACE WATER SUPPLY, 1925, PART XII A

Daily discharge, in second-feet, of St. Maries River at Lotus, Idaho, for the year

ending September 30, 1925

Day

1 _ ...........

2. _ ..........

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

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

6 ..

7 .

8 

9..... _ ......

10 

11 .

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

13. ___ ........

14 ___ . __ ...

15. 

16. - 

17. ___ 

18. _ . ......

19 

20.. ___ 

21.... 

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

23 

24.... ___ .....

25. ___ .....

26. ___ .....

27 

28 

29..... _ ......

30.. ___ ......

31 

Oct.

55

68

70

60

56

53

53

58

56

51

49

51

51

49

49

4Q

49

49

49

53

63

86

146

158

171

Nov.

240

282

9Q£

200

291

209

158

127

119

110

120

140

116

127

150

855

onn

590

428

332

235

183

146

140

120

Dec.

1 90

180

240

oon

398

282

979

'277

000

458

810

770 Gin

522

200

Jan.

140

130

i 9O.

ion

130

120

120

80

Feb.

3,000

1

\ 900

I

590

CCfi

522

458

490

490

74 c

1,750

3,000

2,230

1,900

Mar.

i ^on

1,120

1,180

i QQH

1,180

885

74 e

con

con

628

628

con

590

1,120

1 °.9O.

1,460

1,530

1,980

1,900

1,900

1,980

2,060

Apr.

9 14O

9 9^O

2,600

3

01f\

3,850

2,600

2 gOO

2,600

2,410

2,410

3 49H

2 oon

2,060

2,150

2,320

2,410

i osn

1 7cn

1,320

790

790

790

1,050

May

1,180

1,250

1,120

1,180

i ocn

1 390 i 7f=;n

935

QOC

QOC

935

QQ9

992

1,120

1,050

992

835

1,530

1,530

QQ9

745

628

490

557

con

490

June

4on

490

490

458

A CO

428

QQC

428

OHO

458

428

398

OQO

376

359

332

291

272

258

244

231

213

209

192

183

171

July

1QQ

146

1 ^C

1 3S

126

116

116

in.fi

99

99

98

CQ

99

QQ

QQ

96

95

QQ

92

90

89

87

86

84

83

73

65

Aug.

63

63

63

53

49

46

46

44

44

46

46

Cfl

QQ

106

RQ

76

cc

56

49

63

89

81

76

70

63

60

55

Sept.

53

53

CO

53

51

51

CO

51

51

55

CO

CO

47

46

49

53

55

Cft

51

49

49

49

49

47

46

46

47

47

49

53

NOTE. Braced figures give mean discharge for periods indicated.

Monthly discharge of St. Maries River at Lotus, Idaho, for the year ending September

30, 1925

[Drainage area, 420 square miles]

Month

October..... ________________

December.... _______________

February... _________________

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

The year _____________

Discharge in second-feet

Maximum

171 

1,090 

900

2,060 

3,850 

1,750 

490 

146 

106 

55

Minimum

49 

110 

120

458 

590 

790 

490 

171 

65 

44 

46

44

Mean

66.7 

284 

310 

583 

1,590 

1,260 

2,150 

989 

348 

102 

61.8 

50.6

.641

Per

square 

mile

0.159 

.676 

.738 

1.39 

3.79 

3.00 

5.12 

2.35 

.829 

.243 

.147 

.120

1.53

Eun-ofl

Inches

0.18 

.75 

.85 

1.60 

3.95 

3.46 

5.71 

2.71 

.92 

.28 

.17 

.13

20.71

Acre-feet

4,100 

16,900 

19,100 

35,800 

88,300 

77,500 

128,000 

60,800 

20,700 

6,270 

3,800 

3,010

464,000
SPOEANE KIVEE BASIN 111

HAYDEN IAKE AT HAYDEJI IAKE, IDAHO

LOCATION. In sec. 18, T. 51 N., R. 3 W. Boise meridian, at Avondale and Hayden 

Lake pumping plants about a quarter of a mile north of Hayden Lake depot 

of Spokane and Eastern Railway & Power Co., Kootenai County.

DRAINAGE AREA. Not measured.

RECOEDS AVAILABLE. May 19, 1920, to September 30, 1925.

GAGE. Vertical staff in three sections; read by Sigurd Berven. Zero of gage 

at elevation 2,233.13 feet United States Geological Survey datum when 

referred to bench marks at Hudlow ranch, described on page 80, United 

States Geological Survey Bulletin 567.

EXTEEMES OF STAGE. Maximum stage recorded during year, 6.04 feet April 

25-27; minimum stage recorded, 1.56 feet October 25-29.

1920-1925: Maximum stage recorded, 10.06 feet April 30 to May 18, 1921; 

minimum stage recorded, that of October 25-29, 1924.

ICE. No ice during period of record.

DIVERSION. Water pumped from lake for irrigation and domestic use.

REGULATION. None.

ACCURACY. Gage read to hundredths once daily.

Daily gage height, in feet, of Hayden Lake at Hayden Lake, Idaho, for the year 

ending September 80, 1925

Day

1

2.........

3 

4.........

5-.--.....

6- .-...

7.........

8.. . ......

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. 20

-1.29

-1.30

-1.32

-1.34

 1.35

-1.37

-1.39

-1.40

-1.42

-1.42

-1.43

-1.45

-1.46

-1.48

-1.50

-1.51

-1.52

-1.53

-1.54

-1.54

-1.54

-1.55

-1.56

-1.56

-1.56

-1.55

-1.54

Nov.

-1.54

-1.52

-1.51

-1.48

-1.46

-1.44

-1.41

-1.39

-1.37

-1.35

-1.35

-1.35

-1.35

-1.36

-1.37

-1.37

-1.37

-1.37

-1.34

-1.30

-1.28

-1.26

-1.25

-1.24

-1.24

-1.24

-1.25

-1.26

Dec.

-1.27

-1.28

-1.28

-1.28

-1.28

-1.28

-1.28

-1.28

-1.28

-1.28

-1.28

-1.26

1 9^

-1.22

-1.17

-1.14

-1.07

-1.04

-1.01

-.99

-.98

-.96

94

-.93

-.91

-.89

-.88

- 87

-.86

Jan.

-0.85 -.84

-.83

-.82

-.81

-.80

-.80

-.80

-.80

-.79

-.79

-.79

 7Q

-.79

__ 7Q

-.78

-.78

7Q

-.76

-.75

-.75

-.75

-.74

-.74

_ 73

-.70

-.66

-.62

-.42

-.38

Feb.

-0.18

.20

.30

.85

1.34

1.55

1.75

1.87

1.95

1.97

1.98

1.99

2.00

2.01

2.01

2.02

2.02

2.03

2.04

2.06

2.08

2.11

2.19

9 9^

2.29

2.35

2.45

Mar.

2.54

2

RA

2.70

2.81

2.92

3.04

3.16

3.28

3.33

3.35

3.38

3.38

3.40

3.45

3.45

3.47

3.50

3.52

3.58

3.63

3.09

3.77

3 84

3.92

4.02

4 19

4 ox

4.31

4.37

Apr.

4.44

A K.A

4.64

4.74

4.84

4.94

5.04

5.16

5.37

5.49

5.59

5.68

Z 71

5.74

5.77

5.81

5.84

5.88

5.94

5.99

6.02

6 04

6.04

6.04

6.02

5.99

May

5.95

5.93

5.91

5.89

5.87

5.85

5.83

5.81

5.76

5.77

5.76

5.75

5.73

5.69

5.67

5.65

5.64

5.63

5.67

5.74

5.75

5.74

5.72

5.69

5.67

5.60

June

5.58

5.56

5.54

5.52

5.50

5.48

5.46

5.44

5.41

5.38

5.32

5.28

5.25

5.22

5.12

5.07

5.01

4.92

4.82

4.77

4.72

4.67

4.62

4.57

July

4.39

A QO

4.28

4.20

4.20

4.13

4.03

3.92

3.84

3.76

3.67

3.58

3.49

3.42

3.37

3.37

3.30

3.25

3. 18

3.02

2.92

2.86

2.80

2.75

2.70

2.65

2.60

2.53

2.47

Aug.

2.40

2.28

2.23

a 17

2.10

2.05

2.00

1.95

1.90

1.85

1.80

1.75

1.70

1.66

1.60

1.55

1.50

1.45

1.37

1.33

1.29

1.25

1.21

1.17

1.14

1.10

1.08

1.04

1.00

Sept.

0.96

.93

.90

.86

.84

.81

.78

.76

.74

.71

.68

.66

.64

.62

.60

.58

.55

.52

.48

.45

.42

.39

.37

.34

S9

.30

.27

.25

.23

.21

SPOKAUE VALLEY FARMS CO.'S CANAL 8 AT POST FALLS, IDAHO

LOCATION. In NE. ^ sec. 4, T. 50 N., R. 5 W. Boise meridian, on right bank 

of Spokane River, 1,200 feet below canal head gates and half a mile west 

of Post Falls, Kootenai County.

RECORDS AVAILABLE. May 20, 1911, to September 30, 1917; September 6, 1919, 

to September 30, 1925.

8 Formerly Spokane Valley Land & Water Co.'s canal.
112 SURFACE WATER SUPPLY, 1925, PART XII A

GAGE. Vertical staff on left side of flume; read by J. J. Sheahan.

DISCHARGE MEASUREMENTS. Made from cross ties on top of flume.

CHANNEL AND CONTROL. Control flume and canal section below gage; shifts at 

all stages owing to effect of gravel bar at end of flume and plant growth 

and possibly to regulation of head gates of diversion ditches below gage.

EXTREMES OF DISCHARGE. Maximum discharge, 259 second-feet on July 23-28. 

Canal dry during nonirrigation season.

1911-1917; 1919-1924: Maximum discharge, that of July 23-28, 1925. 

No water in canal during nonirrigation periods.

ICE. Stage-discharge relation not affected by ice.

ACCURACY. Stage-discharge relation changed during period of no flow and 

gradually May 19 to September 2. Rating curves fairly well defined. Gage 

read to hundredths once daily which is considered adequate for determination of mean daily gage height since two submerged orifices and wasteway 

above canal head gates are instrumental in causing gage height in canal to 

remain constant even though the stage of the river is subject to considerable 

daily fluctuation. Daily discharge ascertained by applying daily gage 

height to rating table. Shifting-control method used May 19 to September 2. Records good.

COOPERATION. Gage-height record furnished by Spokane Valley Farms Co. and 

some discharge measurements furnished by Washington Water Power Co.

Canal diverts water from right bank of Spokane River in SE. ^ sec. 3, T. 

50 N., R. 5 W. Boise meridian. Water used for irrigation.

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

during the year ending September 30, 1925

Date

May 18... ...................

Gage 

height

Feet 

4.23

4.71

Discharge

Sec.-ft.

229

Date

July23.- -- 

Sept. 3.. 

Gage 

height

Feel

4.88

4.50

Discharge

Sec.-ft. 

257

223

Daily discharge, in second-feet, of Spokane Valley Farms Co.'s canal at Post Falls, 

Idaho, for the year ending September SO, 1925

Day

1.. 

2 _ .

3....

4....

5-...

6 _ .

7....

8....

9....

10....

11....

12 ..

13 ..

14....

15....

Apr.

101

101

101

101

101

101

101

101

101

101

101

101

101

101

101

May

128

128

128

128

128

128

149

171

171

171

171

179

195

195

203

June

171

171

171

171

171

171

163

163

163

156

150

155

149

149

179

July

251

251

251

251

251

243

251

243

243

251

251

251

251

251

251

Aug.

251

251

251

251

251

251

251

251

251

251

251

251

243

243

243

Sept.

211

203

223

215

215

215

231

231

223

215

215

215

185

156

126

Day

i 16 

17 

18.-..

19 .

20..-

1

21 

22..-

23 ..

24....

I 26 --

! 26....

27....

28 .

29 ..

30 .

31 

Apr.

101

101

101

101

101

101

101

101

101

101

128

128

128

128

128

May

203

203

219

203

211

211

211

211

219

219

211

203

203

195

179

179

June

171

171

171

171

203

203

203

211

227

243

251

251

251

251

251

July

251

251

251

251

251

251

251

259

259

259

259

259

259

251

251

251

Aug.

243

243

243

243

243

235

235

235

235

235

235

227

227

227

211

211

Sept.

96

66

36

7

7

7

7

7

7

7

7

7

7

7

7

NOTE. No gage-height record Sept. 13-18, gates closed some time during period; discharge interpolated
NESPELEM RIVER BASIN 113

Monthly discharge of Spokane Valley Farms Co.'s canal at Post Falls, Idaho, for 

the year ending September SO, 1925

Month '

May __ ....... _ . ___ . __ . __ . _ .... _ -... .

June _____________________________

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

The period _ ..... ___ . _ . _ . _ ....... .......

Discharge in second-feet

Maximum

128 

219 

251 

259 

251 

231

Minimum

101 

128 

149 

243 

211 

7

Mean

106

182 

190 

252 

241 

112

Run-off in 

acre-feet

6,310 

11,200 

11,300 

15,500 

14,800 

6,660

65,800

NESPELEM RIVER BASIN 

NESPELEM RIVER AT NESPELEM, WASH.

LOCATION. In SE. ^ sec. 24, T. 31 N., R. 30 E., one-half mile above Nespelem, 

Okanogan County, 5 miles above Little Nespelem River, and 6 miles above 

mouth.

DRAINAGE AREA. 122 square miles (measured on map of Colville Indian Reservation, edition of 1911).

RECORDS AVAILABLE. May 1, 1911, to September 30, 1925.

GAGE. Vertical staff on left bank at gaging bridge, installed October 19, 1916; 

read by J. L. Davis and Claude Marble.

DISCHARGE MEASUREMENTS. Made from gaging bridge or by wading.

CHANNEL AND CONTROL. Bed composed of gravel and boulders. Concrete 

control. Moss grows on concrete control during summer. Right bank 

flat, subject to overflow at gage height 4.0 feet; left bank high, not subject 

to overflow. Stage of zero flow, gage height 0.4 foot.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 3.87 feet on 

April 12 and 13 (discharge, 334 second-feet); minimum discharge recorded, 

4.7 second-feet on August 28-31. Both of the extremes may have been 

surpassed during winter when records were discontinued.

1911-1925: Maximum stage recorded, 4.9 feet April 5, 1919, determined 

from leveling to high-water mark (discharge, 483 second-feet); minimum 

stage recorded, 0.71 foot July 11, 12, 27, 30, 31, August 1, 2, and 9-15, 1924 

(discharge, 3.1 second-feet).

ICE. Records discontinued during winter.

DIVERSIONS. Nespelem Canal diverts water for irrigation from a point above 

gage. See records for Nespelem Canal.

REGULATION. None.

ACCURACY. Stage-discharge relation changed April 12, slightly affected by 

aquatic growth July 11 to August 31. Rating curves 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 Nespelem River at Nespelem, Wash., during the year

ending September SO, 1925

Date

Apr. 29.... _ ..

Apr. 30 

Gage 

height

Feet 

2.42

2.36

Discharge

Sec.-ft. 

164

156

Date Gage 

height

Feet 

1.23

1.23

Discharge

Sec.-ft.

47.4

Date

Do.. 

Gage 

height

Feet 

0.76

.76

Discharge

Sec.-ft. 

5.0

4.8
114 SURFACE WATER SUPPLY, 1925, PART XII A

Daily discharge, in second-feet, of Nespelem River at Nespelem, Wash., for the year 

ending September 30, 1925

Day

1- 

2

3l.II

4-...

5 __

6 __ .

7....

8_...

9-...

10 __

11- 

12 

13 

14 

15 __ .

Apr.

141

151

161

183

227

262

286

298

310

322

322

334

334

310

286

May

152

152

152

142

142

142

132

132

132

132

123

123

123

114

114

June

58

53

52

48

47

47

42

41

51

52

48

47

42

38

39

July

11

11

9.7

9.7

9.0

9.0

8.4

8.4

7.7

7.7

6.4

6.1

6.1

5.7

5.7

Aug.

5.4

5.4

5.4

5.4

5.4

5.4

5.4

5.4

5.4

5.4

5.0

5.0

5.0

5.0

5.0

Sept.

5.0

5.0

5.0

5.0

5.0

5.0

5.0

5.4

5.4

5.4

5.4

5.4

5.4

5.4

5.7

Day

16 

17-__.

18 

19 

20 

21. 

22 

23....

24. 

25 

25 

27 

28. 

29 

30- 

31

Apr.

286

286

274

286

262

250

227

216

205

205

183

183

172

162

162

May

110

105

93

100

96

100

96

88

84

79

76

71

66

64

64

60

June

37

37

33

30

27

24

25

22

20

19

17

15

12

12

12

July

5.7

5.7

5.4

5.4

5.4

5.4

5.4

5.4

5.4

5.4

5.4

5.4

5.4

5.4

5.4

5.4

Aug.

5.0

5.0

5.0

5.0

5.0

5.0

5.0

5.0

5.0

5.0

5.0

5.0

4.7

4.7

4.7

4.7

Sept.

5.7

5.7

5.7

5.7

5.7

5.7

5.7

5.7

5.7

5.7

5.7

5.7

6.1

6.1

6.1

Combined monthly discharge of Nespelem River and Nespelem Canal at Nespelem, 

Wash., for the year ending September 30, 1925

Month

April - .... ...................

June. __________________

July.......... ............ __ ___

Discharge in second-feet

Combined

Maximum

339

156 

65 

21 

11 

11

1

Minimum

141 

67 

23 

11

8.8 

8.7

River 

mean

243 

108 

34.9 

6.73 

5.09 

5.51

Canal 

mean

2.27 

5.13 

10.5 

7.37 

4.94 

4.47

Combined 

mean

245 

113 

45.4 

14.1 

10.0 

9.98

Combined 

run-off in 

acre-feet

14, 600 

6,950 

2,700 

867 

615 

594

26,300

NESPELEM CANAL AT NESPELEM, WASH.

LOCATION. In sec. 24, T. 31 N., R. 30 E., three-fourths mile below canal intake,

three-fourths mile northwest of Nespelem post office, Okanogan County. 

RECORDS AVAILABLE. April 1, 1921, to September 30, 1925. 

GAGE. Vertical staff on right side of canal; read by Claude Marble. 

DISCHAKGE MEASTTKEMENTS. Made by wading. 

CHANNEL AND CONTKOL. Canal section, modified during growing season by

plant growth. 

EXTKEMES OF DISCHAKGE. Maximum discharge recorded during year, 11.4

second-feet on June 11. No flow through canal December 14 to April 5. 

1921-1925: Maximum stage recorded, 1.8 feet May 29 to June 1, 1924

(discharge, 12.7 second-feet). No flow through canal during winter. 

ACCUKACY. Stage-discharge relation changed gradually June 12 to September 1.

Rating curves fairly well defined. Gage read to hundredths once daily.

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

Shifting-control method used June 12 to September 1. Records good.

Canal diverts water from right bank of Nespelem River about on line between 

sections 24 and 13, T. 31 N., R. 30 E.
NESPELEM EIVEE BASIN 115

Discharge measurements of Nespelem Canal at Nespelem, Wash., during the year 

ending September SO, 1925

Date

Apr. 29.........

Apr. 30

Gage 

height

Feet 

0.72

.89

Discharge

Sec.-ft. 

1.3

2.8

Date Gage 

height

Feet 

1.67

1.14

Discharge

Sec.-ft. 

11.0

3.9

Date Gage 

height

Feet 

1.14

Discharge

Sec.-ft. 

3.8

Daily discharge, in second-feet, of Nespelem Canal at Nespelem, Wash., for the year 

ending September 30, 1925

Day

1... __ ....... __ - ...... _ ...

2.. .

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

4--......,. __ ............. _ .....

5....... ___ ................. _ ....

6... __ _.__._._.._. .. _ .........

8.. .

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

10........................... __ .....

11 _ ....... __ ... _ ..... __ .....

12

13 

14.... __ __ . ....

15---. _ ......................... _ .

16.. .................... _ ...........

17........ _ ............ .......... _ .

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

19-.-.-...-...-........... ........

20- . . 

21.. . __ ... ...-.-..-.. . ...

22.. ._.. __ .... _.

23..... __ ..... _ ... _ . _ . _ .....

24 ...

25.. .... ...... ... __ .......

26 .... yi. ...................................

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

29.. .

30-- ....................... ........

31... ..._ ..._. ..............

Oct.

3.8

3.8

3.8

3.8

3.8

3.8

3.8

3.8

3.8

3.8

3.8

4.2

4.4

4.4

4.7

4.7

4.7

4.7 

4.7

4.7

4.7

4.7

4.7

4.9

5.1

5.1

5.1

5.1 

5.1

5.1 

5.6

Nov.

5.7

5.6

5.6

5.5

5.6

5.6

5.6

5.6

5.4

5.4

5.3

5.2

5.2

5.2

5.2

5.2

5.2

5.2 

5.2

5.2

5.2

5.2

5.2

5.2

5.2

5.2

5.2

5.2 

5.2

5.3

Dec.

5.3

5.3

5.4

5.4

5.4

5.4

5.4

5.4

5.4

5.4

5.4

5.4

5.4

.......

.......

Apr.

1.9

2.3

2.7

3.8

4.1

46

4.6

4.6

3.6

3.2

2.7

2.7

2.9 

2.9

2.8

2.8

2.7

1.9

1.9

1.6

i s

1.3

1.3 

1.3

2.7

May

3.8

3.6

3.6

3.6

3.6

4.6

4.6

4.8

4.8

4.6

4.6

4.6

4.6

4.6

4.6

4.5

4.5

4.5 

4.5

6.0

6.0

6.0

6.0

6.0

5.9

5.9

5 Q

7.2 

7.2

7.2

7 9

June

7.2

7.2

9.5

10.8

10.8

10.8

10.8

10.8

10.8

10.8

11.4

10.8

10.8

10.8

10.8

10.8

10.8

10.8 

10.8

10.8

10.8

10.8

10.8

10.8

10.8

10.8

10.8

10.8 

10.8

10.8

July

10.1

10.1

10.1

10.1

9.5

8.4

8.4

8.4

8.4

8.4

8.4

7.8

7.8

7.2

7.2

6.7

6.7

6.7 

6.6

6.5

6.5

6.3

6.3

6.2

6.0

5.9

5.7

5.6 

5.5

5.5 

5.4

Aug.

5.4

5.3

5.2

5.2

5.2

5.1

5.1

5.0

5.2

5.1

5.1

5.2

5.2

5.3

5.3

5.1

4.9

4.9 

4.9

4.9

4.9

4.9

4.9

4.9

4.8

4.7

4.7

4.5 

4.1

4.1 

4.1

Sept.

3.8

3.8

3.7

3.7

3.7

3.7

3.7

4.2

3.9

3.9

3.9

3.9

4.1

4.1

5.0

5.0

5.0

5.0 

5.0

5.0

5.0

5.0

5.0

5.0

5.0

5.0

5.0

5.0 

5.0

5.0

Monthly discharge of Nespelem Canal at Nespelem,^ Wash., for the year ending

September 30, 1925

Month

October __ _________________________

November __

December 1-13 .......................... .................

April 6-30... .. ____________ . _____ .... ..

May.

June.. _ .

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

August

Discharge in second-feet

Maximum

5.6 

5.7 

5.4 

4.6 

7.2 

11.4 

10.1 

5.4 

5.0

Minimum

3.8 

5.2 

5.3 

1.3 

3.6 

7.2 

5.4 

4.1 

3.7

Mean

4.46 

5.33 

5.38 

2.73 

5.13 

10.5 

7.37 

4.94 

4.47

Eun-off in 

acre-feet

274 

317 

139 

135 

315 

625 

453 

304 

266
116 SURFACE WATER SUPPLY, 1925, PART XII 1

OKANOGAN RIVER BASIN 

OKAWOGAN RIVER AT OKANOGAN, WASH.

LOCATION. In sec. 16, T. 33 N., R. 26 E., at Okanogan, Okanogan County, a 

quarter of a mile above Salmon Creek.

DRAINAGE AEEA. 7,740 square miles (measured on topographic maps and maps 

of Okanogan National Forest, Colville Indian Reservation, and Canadian 

Railway belt).

RECOEDS AVAILABLE. May 10, 1911, to September 30, 1925, when station was 

discontinued.

GAGE. Chain gage on highway bridge; installed June 10, 1920; read by W. A. 

Steiner.

DISCHAEGE MEASUREMENTS. Made from boat at gage, from highway bridge, or 

by wading.

CHANNEL AND CONTROL. Bed composed of boulders and cobblestones; likely to 

shift at extremely high water. Banks fairly high. One channel at all 

stages.

EXTREMES OP DISCHARGE. Maximum stage recorded during year, 11.4 feet 

May 22 (discharge, 19,200 second-feet); minimum discharge, 450 secondfeet September 16-21, 24, 29, and 30.

1911-1925: Maximum stage recorded, 12.21 feet on June 20, 1916 (discharge, 22,200 second-feet); minimum stage recorded, 0.96 foot February 

13, 1923 (discharge, 385 second-feet); flow may have been less in December, 

1922, when stage-discharge relation was affected by ice.

ICE. Stage-discharge relation affected by ice except during mild winters; flow 

estimated from gage-height record, discharge measurements, observer's 

notes, and weather records.

DIVERSIONS. Numerous ditches divert water for irrigation above station.

REGULATION. None.

ACCURACY. Stage-discharge relation changed May 23; affected by ice December 

18 to January 18. Rating curves fairly well defined. Gage read to hundredths once daily, except as indicated in footnote to table of daily discharge. 

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

Records good.

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

The following discharge measurements were made: 

July 6, 1925: Gage height, 4.14 feet; discharge, 3,110 second-feet. 

August 27, 1925: Gage height, 1.69 feet; discharge, 614 second-feet. 

August 29, 1925: Gage height, 1.60 feet; discharge, 550 second-feet.
OKANOGAN RIVER BASIN 117

Daily discharge, in second-feet, of Okanogan River at Okanogan, Wash., for the 

year ending September 30, 1925

Day

1.

2..... .

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

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

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

8

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

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

11 

12.. ...

13 .. .

14_________ .

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

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

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

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

1Q

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

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

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

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

24.......

25.........

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

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

28......

29.........

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

31....... .

Oct.

558

558

530

615

660

705

765

705

705

705

705

690

675

705

675

645

675

rt'TK

690

705

705

1

\ 900

1,100

1,050

Nov.

1,050

992

935

935

970

900

865

900

865

830

830

830

798

765

705

615

798

765

765

70R

798

752

705

705

618

Dee.

530

558

558

585

705

765

720

705

675

675

3,070

3,860

2,250

1,000

1

1,150

Jan.

1,200

1,510

1,610

1,710

1,520

1,320

1,230

1,320

Feb.

4,480

3,860

1,920

1,610

1,420

1,230

935

900

849

798

830

830

830

1,410

970

830

7QC

Mar.

798

798

765

830

830

"nc

7flc

705

705

720

7QK

765

798

830

965

1,100

1,320

Apr.

1,320

1,320

1,320

1,320

1,360

1,410

1,510

1,710

1,810

2,370

3,000

3,900

4,800

5,640

5,380

5,130

5,130

5,300

5,130

4,960

4,480

4,240

3,860

May

4,980

5,040

5,300

9,100

9,210

9,650

12, 200

14, 700

15, 600

16, 400

19,200

18, 400

14, 600

12, 700

11, 300

June

8,550

8,130

7,720

7,120

7,120

6 990

7,120

7,520

7,120

7,020

7,320

7,520

6,550

6,740

6,000

5,640

5,130

July

4,380

4,000

3,690

3, 540

3,240

3,240

3,090

2 940

i, 780

2,480

O QOfi

2,170

2,050

2,050

1,820

1,710

1,610

1,510

1,510

1,410

1,320

1,320

1 ^9A

1,280

1,230

1,230

1,230

Aug.

1,020

1,000

980

940

900

900

825

940

915

890

865

840

815

790

715

615

615

585

575

555

528

615

615

615

555

555

528

Sept.

555

528

500

500

500

491

483

475

500

475

475

475

475

475

475

450

450

450

450

450

450

475

475

450

475

476

476

476

450

450

NOTE. Gage not read Oct. 5,10,12,19, 22-29, Nov. 2, 9, 11,16, 23, 27, 30, Dec. 7,14,16, 21, 25, 28, Jan. 1, 

4, 10, 11, 18, 25, Feb. 1, 8, 10, 15, 22, Mar. 1, 8, 15, 22, 29, Apr. 5, 12, 15, 19, 26, May 3, 10, 14, 17, 24, 30, 31, 

June 7,14, 21, 28, 30, July 1, 7-12,19, 26, Aug. 2, 9-16, 22, 23, Sept. 6, 7,13, 20, and 27; discharge interpolated. 

Braced figures give estimated mean discharge for periods indicated.

Monthly discharge of Okanogan River at Okanogan, Wash., for the year ending

September 80, 1925

Month

March..... _ ............ ___ _ __ .

May... __ .... _ .... _ _ ____ . . ... .

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

Discharge in second-feet

Maximum

1,050 

5,470

4,480 

1,320 

5,640 

19,200 

9,430 

4,380 

1,020 

555

19, 200

Minimum

530 

615 

530

798 

705 

1,320 

4,160 

4,750 

1,060 

528 

450

450

Mean

755 

806 

1,230 

1,290 

1,470 

800 

3,600 

11,400 

6,930 

2,170 

743 

476

2,640

Run-off in 

acre-feet

46,400 

48, 000 

75, 600 

79,300 

81,600 

49,200 

214, 000 

701, 000 

412, 000 

133, 000 

45,700 

28,300

1, 910, 000
118 SURFACE WATER SUPPLY, 1925, PART XII A

SIMHKAMEEN RIVER NEAR OROVHIE, WASH.

LOCATION. In SE. K sec. 13, T. 40 N., R. 26 E., at Okanogan Valley Power 

Co.'s plant, 4 miles above Oroville, Okanogan County, and 5 miles abovemouth; below all tributaries.

DRAINAGE AREA. 3,450 square miles (measured on topographic and Canadian 

railway-belt maps).

RECORDS AVAILABLE. May 14, 1911, to September 30, 1925.

GAGE. Since March 4, 1924, vertical staff on right bank about 40 feet above 

tailrace of power plant; read by employees of Washington Water Power Co. 

Datum of gage is set to sea level.

DISCHARGE MEASUREMENTS. Made by wading or from highway bridge at 

Oroville, 4 miles below gage.

CHANNEL AND CONTROL. Narrow canyon at gage and control; fairly permanent. 

Banks high, not subject to overflow. Control for low and medium stage 

is riffle formed by bedrock and boulders; high-water control not well defined.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 979.3 feet at 

6 a. m. on May 21 (discharge, 18,300 second-feet); minimum stage recorded, 

965.35 feet at 6 p. m. on September 16 (discharge, 206 second-feet).

1911-1925: Maximum stage recorded, 18.5 feet on June 5, 1922 (discharge, 

21,400 second-feet); river dry at 4 p. m. December 5, 1920, while filling, 

pond behind dam.

ICE. Stage-discharge relation seriously affected by ice; flow estimated from 

gage-height record, discharge measurements, observer's notes, and weather 

records.

DIVERSIONS. Some water is diverted for irrigation from tributaries above the 

station. The principal diversion is made frOm the river above the gage by 

the West Okanogan Valley Irrigation District (see p. 123).

REGULATION. Slight regulation by means of flashboards during low-water 

periods to accommodate power load.

ACCURACY. Stage-discharge relation practically permanent. Not affected by 

ice. Rating curve well defined above 300 second-feet. Gage read to 

tenths twice daily until October 28; to hundredth^ thereafter. Daily discharge ascertained by applying mean daily gage height to rating table. 

Records good.

COOPERATION. Gage-height record and some discharge measurements furnished 

by the Washington Water Power Co.

Discharge measurements of Similkameen River near Oroville, Wash., during the 

year ending September SO, 1925

Date

Oct. 28..-. .__. .. ..

Gage 

height

Feet 

67.07

Discharge

Sec.-ft. 

999

Date Gage 

height

Feet 

68.76

Discharge

Sec.-ft. 

2, 293

371
OEANOGAN RIVER BASIN 119

Daily discharge, in second-feet, of Similkameen River near Oroville, Wash., for the 

year ending September 30, 1925

Day

1 _ ..........

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

3... .......

4. ____ ....

5-... ......

6. _ .........

7 ..........

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

9.. ........

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

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

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

13 - 

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

15... ,...

16.... 

17 ..........

18 _ ..........

19- 

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

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

22 

23 _ .......

24...... 

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

26. _ .........

27 ..........

28. ......

29 . 

30 _ ..........

31 ..........

Oct.

334

369

463

505

661

528

551

551

505

505

505

551

576

4R5

463

463

463

505

505

484

484

505

463

463

444

484

1,100

1,170

970

840

808

Nov.

775

775

713

776

744

744

744

628

655

628

601

601

576

528

484

484

601

576

576

628

576

601

744

601

576

628

551

463

444

369

Dee.

351

351

463

576

601

528

551

505

484

369

505

505

4,840

5,080

4 360

1,950

970

655

655

655

601

713

715

840

970

840

840

970

970

Jan.

905

1,040

970

0*7(1

970

905

840

840

905

QA(\

775

713

840

744

711

655

655

655

601

684

713

715

775

840

684

655

655

628

551

655

713

Feb.

77 <\

840

840

808

905

905

one;

905

S4n

QAQ

77*

713

713

711

744

684

684

715

713

628

713

715

715

713

684

Mar.

713

684

684

840

840

808

840

905

808

808

808

713

744

fiS4

775

775

655

655

528

628

77 <\

775

684

655

775

684

713

744

684

684

Apr.

655

656

655

808

744

970

1,240

1,540

1,950

2,550

3,380

4,360

5,200

4. Qfifi

4,600

4,480

4,480

4 790

4,600

4,600

4,360

4,240

3,910

3,690

3,480

3,480

3,380

3,280

3,280

3,580

May

4,360

4,240

4,360

4,480

4,960

5,970

8,320

9,760

9,440

9,600

10, 400

11,100

11, 800

12,800

13,900

15, 000

16, 200

16, 900

17,500

18, 100

18,100

17, 300

15, 400

13, 200

11,600

10, 700

10,100

10,200

10,400

9,600

8,480

June

7,840

7,230

7,530

6,950

6,390

6,250

6,390

6,390

6,670

6,950

6,950

6,670

6,670

6,530

6,390

6,950

7,230

6,950

6,950

6,530

6,530

6,530

6,390

5,580

5,080

4,960

4,720

4,480

4,020

3,580

July

3,380

3,090

2,910

2,730

2,640

2,550

2,380

2,200

2,040

1,960

1,860

1,860

1,700

1,700

1,540

1,540

1,380

1,310

1,170

1,040

1,040

970

970

970

970

905

905

840

713

684

655

Aug.

655

655

601

601

551

551

551

484

444

424

424

424

551

528

484

484

387

351

351

QfiQ

387

334

351

551

387

387

369

351

334

369

316

Sept.

299

299

316

299

266

266

299

299

282

266

250

250

235

235

250

235

250

250

250

266

266

266

266

250

266

250

235

235

250

266

Monthly discharge of Similkameen River and West Okanogan Valley Irrigation 

District Canal near Oroville, Wash., for the year ending September 30, 1925

[Drainage area, 3,450 square miles]

Month

November.. ... .... 

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

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

May .... ... ...

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

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

The year ..............

Discharge in second-feet

Combined

Maximum

1,170 

775 

5,080 

1,040 

905 

905 

5,240 

18, 200 

7,980 

' 3,540 

827 

472

18, 200

Minimum

334

369 

351 

551 

628 

528 

689 

4,360 

3,740 

827 

472 

346

334

River

mean

567 

613 

1,090 

768 

760 

730 

3,130 

11,100 

6,280 

1,630 

452 

264

2,290

Canal 

mean

0.0 

.0 

.0 

.0 

.0 

.0 

51.5 

137 

142 

164 

147 

143

65.7

Combined

Mean

567 

613 

1,090 

768 

760 

730 

3,180 

11,200 

6,420 

1,790 

599 

407

2,350

Per

square 

mile

a 164 

.178 

.316 

.223 

.220 

.212 

.922 

3.25 

1.86 

.519 

.174 

.118

.681

Run-oft 

(combined)

Inches

0.19 

.20 

.36 

.26 

.23 

.24 

1.03 

3.75 

2.08 

.60 

.20 

.13

9.27

Acre-feet

34,900 

36, 500 

67,000 

47,200 

42,200 

44,900 

189,000 

689,000 

382, 000 

110, 000 

36,800 

24,200

1, 700, 000

SINIAHEKIU CREEK ABOVE BLUE LAKE, WEAR LOOMIS, WASH.

LOCATION. In NE. M sec. 20, T. 37 N., R. 25 E., 1,800 feet above Blue Lake 

diversion dam, 1 mile northwest of Blue Lake, 3J^ miles above Sarsapkin 

Creek, and 9J^ miles southwest of Loomis, Okanogan County.

DRAINAGE AREA. 41.7 square miles (measured on topographic maps).

RECOBDS AVAILABLE. April 17, 1924, to September 30, 1925. June 13, 1903, 

to March 30, 1905, at site 3 miles above Loomis; June 1 to October 31, 1920, 

at Blue Lake half a mile below present gage; May 1, 1921, to September 30, 

1923, at Twin Bridges, 4 miles below.
120 SURFACE WATER SUPPLY, 1925, PART XII A

GAGE. Stevens continuous water-stage recorder on right bank; inspected by 

employees of Whitestone Irrigation District.

DISCHARGE MEASUREMENTS. Made by wading.

CHANNEL, AND CONTROL. Bed of stream composed of boulders. Right bank 

high; left bank subject to overflow at extremely high water. High-water 

control large boulders; permanent. Low-water control gravel and small 

boulders; will shift at high stages.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 1.46 feet at 

3 p. m. May 19 (discharge, 99 second-feet); minimum stage recorded, 0.49 

foot at 7 p. m. September 14 (discharge, 2.3 second-feet). Flow may have 

been lower during period in September when water-stage recorder was not 

operating.

1920-1925: Maximum discharge recorded, 363 second-feet on May 18, 

1922; minimum discharge recorded, 0.7 second-foot on August 16, 1920. 

Flow may have been lower August 17, 1920, when gage was not read.

ICE. Station discontinued during winter.

DIVERSIONS. None.

REGULATION . None.

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

defined. Operation of water-stage recorder fairly satisfactory except as 

noted in footnote to table of daily discharge. Daily discharge ascertained 

by applying to rating table mean daily gage height determined from recorder 

graph by inspection. Records good.

Discharge measurements of Sinlahekin Creek above Blue Lake, near Loomis, Wash., 

during the year ending September 30, 1925

Date

Apr. ! ... .....

May 7 .. __ .

Gage 

height

Feet 

0.60

1.30

Discharge

Sec.-ft.

55.2

Date

July8..__ ...

Gage 

height

Feet 

1.21

.72

Discharge

Sec.-ft.

7.66

Date

Aug. 29-. 

Gage 

height

Feet 

0.50

Discharge

Sec.-ft. 

2 44

Daily discharge, in second-feet, of Sinlahekin Creek above Blue Lake, near Loomis, 

Wash., for the year ending September 30, 1925

Day

1. 

2....

3- 

4....

5-...

6....

7- 

8....

9. 

10....

11....

12. ...

13....

14.....

15....

Apr.

3.7

4.6

5.5

8.0

10

12

17

23

28

34

54

69

57

49

46

May

40

39

38

42

49

62

65

55

50

49

52

54

60

62

62

June

34

40

37

33

33

32

32

33

39

33

30

29

28

30

28

July

12

12

11

10

9.5

9.0

8.5

8.0

7.5

7.0

6.6

6.2

5.8

5.5

5.2

Aug.

3.2

3.2

3.0

3.0

3.0

2.9

2.9

2.8

2.8

2.8

2.7

2.7

2.7

2.7

2.7

Sept.

2.9

3.2

2.7

2.6

2.6

2.7

2.6

2.6

2.6

2.5

2.5

2.5

2.4

2.4

2.4

Day

16. 

17. 

18. 

19. 

20. 

21. 

22....

23. 

24. 

25. 

26- 

27. 

28. 

29. 

30. 

31

Apr.

42

40

34

31

29

28

27

27

26

25

25

24

25

28

38

May

60

60

62

74

57

44

43

43

42

40

37

37

44

44

39

36

June

27

25

24

23

21

21

21

19

18

18

16

16

14

14

13

July

4.6

4.3

4.0

4.0

3.7

3.7

3.7

5.2

5.8

6.6

4.6

4.3

4.0

3.7

3.5

3.2

Aug.

2.9

3.3

3.2

2.8

2.6

2.6

2.6

2.9

2.7

2.6

2.6

2.6

2.5

2.5

2.5

2.4

Sept.

2.5

2.5

2.5

2.6

2.7

2.7

2.7

2.7

NOTE. Water-stage recorder not operating Apr. 21-24, Aug. 5, 26-28, and Sept. 19-25; gage-height record 

faulty May 22 and 23; discharge estimated. Braced figures show estimated mean discharge for period

inrilnatflrl indicated.
OKANOGAN KIVEK BASIN 121

Monthly discharge of Sinlahekin Creek above Blue Lake, near Loomis, Wash., for 

the year ending September SO, 1925

Month

July

Discharge in second-feet

Maximum

69 

74 

40 

12 

3.3

Minimum

3.7 

36 

13 

3.2 

2.4 

2.4

Mean

29.0 

49.7 

26.0 

6.22 

2.79 

2.70

Run-off in 

acre-feet

1,730 

3,060 

1,550 

382 

172 

161

7,060

TOATS COTJIBB CESEK KEAB LOOMIS, WASH.

LOCATION. In SE. M sec. 33, T. 39 N., R. 25 E., just below Deer Creek, 1,200 

feet above intake of Whitestone Irrigation District flume, and 3 miles northwest of Loomis, Okanogan County.

DRAINAGE AREA. 132 square miles (measured on topographic maps).

RECORDS AVAILABLE. May 1, 1920, to September 30, 1925.

GAGE. Stevens continuous water-stage recorder on left bank at head of falls, 

installed June 3, 1920; inspected by Harold Eastman.

DISCHARGE MEASUREMENTS. Made from footbridge just above irrigation flume 

intake or by wading.

CHANNEL AND CONTROL. Bed composed of large boulders and gravel. One 

channel at all stages. Banks high and wooded. Control head of 20-foot 

falls several feet below gage.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, from waterstage recorder, 3.07 feet at 2 a. m. May 20 (discharge, 313 second-feet); 

minimum stage, 0.88 foot at 9 p. m. September 15 (discharge, 2.4 secondfeet); flow may have been lower during winter when recorder was not 

operating.

1920-1925: Maximum stage recorded, 4.8 feet at 8 p. m. June 3, 1922 

(discharge, 925 second-feet); minimum stage recorded, that of September 

15, 1925.

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

during winter.

DIVERSIONS. None.

REGULATION. None.

ACCURACY. Stage-discharge relation changed gradually March 31 to July 8; 

not affected by ice while recorder was in operation. Rating curves used 

directly and as standard form for shifting control fairly well defined. Operation of water-stage recorder satisfactory except as noted in footnote to table 

of daily discharge. Daily discharge ascertained by applying to rating 

table mean daily gage height determined from recorder graph by inspection. 

Shifting-control method used March 31 to July 8. Records fair.
122 STTKFACE WATER SUPPLY, 1925, PART XII A

Discharge measurements of Toats Coulee Creek near Loomis, Wash., during the 

year ending September SO, 1925

Date

Mar. 31 .

Apr. 1.... ......

Gage 

height

Feet 

1.29

1.30

2.51

2.62

Discharge

Sec.-ft. 

5.70

5.65

98.2

125

Date

MayS ..........

May 23 __ . ...

Julys.. __ ....

Do.. .......

Gage 

height

Feet 

2.59

2.76

1.77

1.77

Discharge

See.-ft. 

129

169

18.1

17.7

Date

Aug. SI.........

Gage 

height

Feet 

1.08

1.03

Discharge

Sec.-ft. 

4.82

3.77

Daily discharge, in second-feet, of Toats Coulee Creek near Loomis, Wash., for the 

year ending September SO, 1925

Day

1 __ ...... ................. _ - . .. 

2 ____________________________

6 - . . .

7 ____ .... . - . .

8. _ ..... ___ ... .... _ ........ _ ..

9 _ . _ 

10 

11- _____ . _. 

12.. __ .. - . 

13 

14 ____ . 

15 __ 

10... _ 

17 ___ ... 

18.. _ 

19.. _ . 

20. __ ... . . 

21 ___ .. __ ... ... _ .. __ .....

22 __ - __ 

23 __________________________

24... __ . ___ __ 

25

26 

27 

28

29 

30 __ ___ . _ . __ - ___ .. _ - ___ . 0-1

Oct.

5.5

5.8

5.7

5.7

5.8

5.8

5.7

5.9

6.2

5.2

6.2

6.5

6.5

6.9

7.5

7.6

Mar.

5.7

Apr.

5.7

6.2

6.6

7.5

9.4

11

12

15

20

27

36

45

43

39

36

32

32

31

31

29

27

28

26

26

26

27

24

28

33

53

May

54

50

49

57

72

104

141

127

120

120

131

136

157

169

195

203

203

212

264

284

234

208

180

152

136

129

123

131

154

129

120

June

112

134

127

106

98

87

83

89

112

118

100

89

82

82

76

80

78

73

64

64

64

62

59

56

49

45

43

40

36

33

July

30

29

26

24

22

20

20

18

17

16

14

14

13

12

12

10

9.4

8.8

8.5

8.2

8.0

7.9

11

11

10

9.8

8.6

7.6

7.4

6.9

6.3

Aug.

6.2

6.4

6.3

6.3

6.2

6.2

6.1

6.1

6.0

5.9

5.9

5.8

5.8

5.7

5.7

5.6

5.5

5.3

5.2

5.1

5.0

4.9

4.8

4.7

4.6

4.5

4.4

4.3

4.2

4.0

3.7

Sept.*

4.4

5.4

5.3

4.3

4.1

4.2

4.0

3.8

3.4

3.1

3.0

2.9

2.7

2.5

2.5

2.7

2.9

3.4

4.5

3.9

3.6

3.3

3.4

3.7

4.4

4.

4.8

5.3

5.2

5.1

NOTE. Water-stage recorder not operating Aug. 3-15, 19-28; discharge estimated.

Monthly discharge of Toats Coulee Creek near Loomis, Wash., for the year ending

September SO, 1925

Month

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

July.....-. _-.-. -.-. 

Discharge in second-feet

Maximum

7.6 

53 

284 

134 

30 

6.4 

5.4

Minimum

5.2 

5.7 

49 

33 

6.3 

3.7 

2.5

Mean

6.16 

25.7 

147 

78.0 

13.8 

5.37 

3.88

Run-ofl in 

acre-feet

195 

1,530 

9,040 

4,640 

848 

330 

231
OKANOGAN RIVER BASIN 123

WEST OKANOGAN VALLEY IRRIGATION DISTRICT CANAL NEAR OROVILLE, WASH.

LOCATION. In sec. 20, T. 40 N., R. 27 E., at under crossing of road to power 

plant, 1^4 miles northwest of Oroville, Okanogan County.

RECORDS AVAILABLE. Irrigation seasons 1922 to 1925.

GAGE. Since April 7, 1924, float and staff gage on left side of flume; read by 

John Truax.

DISCHARGE MEASUREMENTS. Made from plank over flume.

CHANNEL AND CONTROL. Control is long section of metal-lined flume and earth 

canal. There is a possibility that stage-discharge relation is affected somewhat by operation of lateral gates some considerable distance below gage and 

by plant growth in earth section.

EXTREMES OF DISCHARGE. Maximum discharge during year, 172 second-feet on 

July 20, 21, 27-29, 31, August 1-6 and 8-12. Canal dry August 13-15 and 

during nonirrigating season.

1922-1925: Maximum discharge recorded, 182 second-feet from June 27 

to July 1, 1924. Canal dry June 15, 1923, April 25, 1924, and August 13-15, 

1925, and during nonirrigating seasons.

ICE. Canal dry during winter.

ACCURACY. Stage-discharge relation changed gradually May 27 to July 6, and 

September 9. Rating curves poorly defined. Shifting-control method used 

May 27 to July 6. Daily discharge ascertained by applying daily gage 

height to rating table. Records fair.

COOPERATION. Gage-height record furnished by West Okanogan Valley Irrigation District.

Canal diverts water from left bank of Similkameen River in sec. 7, T. 40 N., 

R. 26 E. Water is used for irrigation.

Discharge measurements of West Okanogan Valley Irrigation District Canal near 

Oroville, Wash., during the year ending September SO, 1925

Date Gage 

height

Feet 

2.02

2.16

Discharge

Sec.-ft. 

137

144

Date

July?.. 

Gage 

height

Feet 

2.42

2.39

Discharge

Sec.-ft. 

158

154

Date

Aug. 31.. ..

Gage 

height

Feet 

2.41

Discharge

Sec.-ft.

Daily discharge, in second-feet, of West Okanogan Valley Irrigation District Canal 

near Oroville, Wash., for the year ending September 30, 1925

Day

1 

2 

3.. 

4 

5. 

6 

7..-

8-...

9 

to .

11 

12. __

13 __ .

14 _ -

15 

Apr.

34

34

34

36

37

37

38

39

40

40

41

42

43

43

44

May

165

116

132

132

132

132

132

132

140

140

140

140

140

140

148

June

139

139

138

138

130

130

130

130

130

129

137

137

129

129

136

July

157

157

157

156

156

156

156

164

156

164

164

164

164

164

164

Aug.

172

172

172

172

172

172

164

172

172

172

172

172

0

0

0

Sept.

148

156

156

156

156

156

156

148

148

148

148

148

156

148

148

Day

16. 

17....

18 

19 

20 

21..-

22....

23 

24 

25.--

26 

27 

28 

29.--

30.--

31

Apr.

44

44

47

50

53

65

68

62

62

71

71

42

95

95

95

May

140

148

148

140

39

140

148

140

148

148

140

140

140

139

139

139

June

136

136

144

151

151

151

151

150

150

158

158

158

158

158

157

July

164

164

164

164

172

172

164

164

164

164

164

172

172

172

164

172

Aug.

78

156

164

164

164

164

164

164

164

164

164

164

164

156

156

156

Sept.

148

156

148

148

148

148

148

140

132

125

125

125

111

111

111

3223 2£
124 SURFACE WVTER SUPPLY, 1925, PART XII A

Monthly discharge of West Okanogan Valley Irrigation District Canal near Oroville, 

Wash., for the year ending September SO, 1925

Month

April _______________________________

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

Discharge in second-feet

Maximum

95 

165 

158 

172 

172 

156

Minimum

34 

39 

129 

156 

0 

111

Mean

51.5 

137 

142 

164 

147 

143

Run-off in 

acre-feet

3,060 

8,420 

8,450 

10,100 

9,040 

8,510

47,600

METHOW RIVER BASIN 

METHOW EIVEE AT TWISP, WASH.

LOCATION. In sec. 17, T. 33 N., R. 22 E., at highway bridge at Twisp, Okanogan 

County, a quarter of a mile below mouth of Twisp River.

DRAINAGE AREA. 1,330 square miles (measured on topographic and Forest 

Service maps).

RECORDS AVAILABLE. June 1, 1919, to September 30, 1925.

GAGE. Chain gage on upstream side of highway bridge; installed June 14, 1920; 

read by H. A. Mykrantz.

DISCHARGE MEASUREMENTS. Made from highway bridge or by wading.

CHANNEL AND CONTROL. One channel at all stages; straight for long distance 

above and below gage. Bed composed of boulders and gravel. Control 

consists of large boulder riffle about 300 feet below gage; may shift during 

floods.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 9.5 feet on 

May 20 (discharge, 11,400 second-feet); minimum stage recorded, 1.7 feet 

December 9 and September 3-6 and 9-23 (discharge, 204 second-feet).

1919-1925: Maximum stage recorded, 10.4 feet at 9 a. m. on June 5, 1921 

(discharge, 13,400 second-feet); minimum discharge estimated at 144 secondfeet December 13-15, 1919, when stage-discharge relation was affected by 

ice.

ICE. Stage-discharge relation seriously affected by ice during severe winters. 

Flow estimated from discharge measurements, observer's notes, and weather 

records.

DIVERSIONS. Numerous diversions above station for irrigation.

REGULATION. None.

ACCURACY. Stage-discharge relation permanent, except as affected by ice 

December 17 to January 18. Rating curve well defined below 6,000 secondfeet. Gage read to hundredths once daily. Daily discharge ascertained by 

applying daily gage height to rating table. Records good.

COOPERATION. Gage-height record furnished by Methow Okanogan Irrigation 

District.

The following discharge measurements were made: 

July 2, 1925: Gage height, 4.32 feet; discharge, 1,940 second-feet. 

July 3, 1925: Gage height, 4.34 feet; discharge, 1,980 second-feet. 

August 26, 1925: Gage height, 1.80 feet; discharge, 245 second-feet.
METHOW RIVER BASIN 125

Daily discharge, in second-feet, of Methow River at Twisp, Wash., for the year ending

September SO, 1925

Day

1 ....

2..... ..

3......- ...

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

5. .

6..... .....

7..... .....

8.-..-.--.....

9..... .....

10 .... ...

11. ........

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

13 

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

15 .... ......

16......... .

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

IS.............

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

20 ......

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

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

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

24 _ ....

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

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

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

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

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

30 .........

31. .... 

Oct.

256

256

256

275

256

256

256

275

256

256

256

238

256

256

275

275

238

238

238

238

238

275

275

314

294

294

294

Nov.

294

314

294

314

335

314

335

294

314

294

314

294

294

294

97 %

294

294

275

294

294

294

294

294

294

9CU

256

238

238

238

256 !

1

Dec.

275

275

275

275

275

275

256

256

204

275

256

401

715

1,060

1,140

628

320

290

320

Jan.

340

290

300

335

335

335

314

294

275

314

294

97 «!

314

294

314

Feb.

314

0-M

314

314 0-M

314

314

294

294

275

275

275

275

275

275

275

256

275

275

275

275

275

294

275

275

275

275

275

Mar.

275

294

314

9CU

314

314

314

314

314

314

314

314

335

335

356

335

356

356

401

426

450

475

525

525

550

550

Apr.

525

CKA

575

715

850

aon

1,140

1,400

1,800

2,360

2,620

3,840

3,200

3,050

2,760

2,760

2,490

2,120

1,900

1,900

1,800

1,700

1,600

1,600

1,600

1,600

1,900

May

2,240

2,120

2,120

2,300

9 4Qfi

3,360

4,650

4,820

4,650

4,990

5,160

5,330

6,440

7,610

9,260

9,260

10, 100

11,000

11, 400

9,470

9,260

7,410

6,630

5,870

5,510

5,330

5,160

4,820

4,160

June

3,840

3.520

3,200

3,200

3,050

3,050

3,520

3,680

3,520

3,360

3,360

3,360

4,000

4,480

4,480

4,160

4,320

4,820

4,480

3,840

3,360

3,200

4,990

5,330

3,520

2,900

2,620

July

2,240

2,120

2,010

1,900

1 Qftfi

1,700

1.500

1,400

1,310

1,310

1,220

1,140

1,140

1,060

QQA

920

920

885

748

715

685

715

685

655

600

575

550

Aug.

500

475

450

450

426

401

401

378

356

335

314

314

314

294

314

294

294

314

294

294

275

275

275

256

238

238

238

238

238

238

238

Sept.

221

221

204

204

204

204

221

221

204

204

204

204

204

204

204

204

204

204

204

204

204

204

204

221

221

221

221

221

221

221

NOTE. Braced figures give estimated mean discharge for periods indicated.

Monthly discharge of Methow River at Twisp, Wash., for the year ending September 80, 1925

Month

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

July 

Discharge in second-feet

Maximum

314 

335 

1,140

314 

550 

3,840 

11,400 

5,330 

2,240 

500 

221

11, 400

Minimum

238 

238 

204

256 

275 

525 

2,120 

2,620 

550 

238 

204

204

Mean

262 

291 

371 

309 

286 

384 

1,900 

5,910 

3,700 

1,110 

321 

210

1,260

Run-off in 

acre-feet

16,100 

17,300 

22,800 

19,000 

15,900 

23,600 

113, 000 

363,000 

220,000 

68,200 

19, 700 

12,500

911, 000
126 SURFACE WATER SUPPLY, 1925, PART XII A

CHELAN RIVER BASIN 

LAKE CHE1AN AT CHELAKT, WASH.

LOCATION. In sec. 13, T. 27 N., R. 22 E., at Forest Service boat landing at 

Chelan, Chelan County, a quarter of a mile above highway bridge at outlet.

DRAINAGE AREA. 950 square miles (measured on topographic and Forest Service maps).

RECORDS AVAILABLE. September 1 to October 15, 1897; January 1, 1898, to 

December 31, 1899; January 1 to June 30, 1905; December 5, 1910, to 

September 30, 1925.

GAGE. Vertical staff on pile at landing; installed December 5, 1910; datum 

1, 076.15 feet above sea level; read by C. A. Bennett.

EXTREMES OF STAGE. Maximum stage recorded during year, 6.85 feet on May 

21 and 22; minimum stage recorded, 2.03 feet on September 30.

1898-99; 1911-1925: Maximum stage recorded, 8.2 feet (elevation, 

1, 084.35 feet) on June 8, 1921; minimum stage recorded, 6.60 feet (elevation, 

1, 076.78 feet) January 27, 28, December 2 and 3, 1898.

REGULATION. The lake level is controlled at low water by operation of flashboard dam at outlet in the interest of navigation.

ACCURACY. Gage read to hundredths once on days for which gage heights are 

given.

COOPERATION. Gage-height record furnished by Chelan Electric Co.

Daily gage height, in feet, of Chelan Lake at Chelan, Wash., for the year ending

September SO, 1925

Day

1 

2 ___ 

3 _ . 

4. .. ___ ..

5....-. ... -

6 

7 ...... 

8. ....

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

10 

11. _ ... 

12 

13. . _ 

14 

15 

16 . _ ..

17- 

18 

19 

20 

21 

99

23 

24. . _ 

25 

26 

27 

28.. .....

29 _ ...........

30 

31 

Oct.

2.53

2.39

.......

2,21

"~2"25"

.......

"2!49"

Nov.

2.51

2.51

"Z'M,'

2.59

2.62

.......

.......

2.41

Dec.

9 V>

3.10

~~3754~

3.94

3.93

"ITJii"

Jan.

3.82

4.10

3.95

3.65

3.74

.......

""§."64"

Feb.

3.73

3.67

3.72

 

"§."67"

 

Mar,

3.64

3.60

3.38

3.20

3.10

2.73

"~2768"

"aso"

Apr.

2.37

2.45

2.52

2.60

2.96

3.34

3.40

3.55

3.54

3.49

""§"§4"

3.18 

3.12

 .

May

3.16

3.18

3.67

§.oi

4.00

4.43

4.70 

4.96

5.22

5.89

6.25

6.63

6.85

6.85

6.80 "ereo"

6.50

6.45 

6.41

6.38

6.21

June

5.87

5.79

5.56

5.38

5.20

5.07

4.93

4.88

4.85

4.85

"4.~68~

4.82

4.90

4.96

5.05

5.48 

5.55

5.66

5.78

5.66

5.62

July

5.43

5.34

5.26

5.26

5.03

4.93

4.84

4.75

4.68

4.66

4.62

4.48

4.42 

4.34

4.26

4.28

4.08

3.94

3.85

3.79

3.74

3.69 

3.64

3.55 

3.62

3.59

3.55 

3.58

Aug.

3.65

3.73

3.68

3.69

3.72

3.67

3.65

3.69

3.67

3.68

3.69

3.75 

3.58

3.39

3.36

3.30

3.27

3.30

3.32

3.19 

3.20

3.11

3.12 

3.04

2.95 "i'iJB"

Sept.

2.93

2.90

2.83

9 fin

2.73

2.73

2.75

2.73

2.64

2.60

2.58 

2.58

2.51

2.50

2.45

2.37

2.38

2.33

2.26

2.26 29<;

2.18

2~l4

9 no

2.03
CHELAN RIVER BASIN 127

CHEIAU RIVER AT CHELAN, WASH.

LOCATION. In sec. 13, T. 27 N., R. 22 E., at lower bridge at Chelan, Chelan 

County, 800 feet below flashboard dam at outlet of Chelan Lake, and 4 

miles northwest of Chelan Falls.

DBAINAGE AKEA. 950 square miles (measured on topographic and Forest Service 

maps).

RECORDS AVAILABLE. November 1, 1903, to September 30, 1925.

GAGE. Vertical staff on fourth bent of left approach to lower bridge; read by 

C. A. Bennett.

DISCHARGE MEASUREMENTS. Made from upper bridge 1,000 feet above gage, 

from boat, or by wading.

CHANNEL AND CONTROL. Bed composed of boulders and gravel; shifting at 

extremely high water. Channel curved above gage, but practically straight 

below. Banks high, not subject to overflow.

EXTREMES OF DISCHARGE. Maximum stage recorded during year ending September 30, 1924, 10.4 feet on May 22-24 (discharge, 7,950 second-feet); 

minimum stage, 4.0 feet January 20-23, 27, and 28 (discharge, 310 secondfeet).

Maximum stage during year ending September 30, 1925, 10.8 feet May 

21-23 (discharge, 8,670 second-feet); minimum stage, 4.7 feet November 

24 and December 7-9 and 11 (discharge, 550 second-feet).

1903-1925: Maximum stage recorded, 12.3 feet June 8, 1921 (discharge, 

11,600 second-feet). Practically no flow for at least part of day on January 

30, 1917, when outlet to lake was blocked solidly with ice so that no water 

could flow over dam.

ICE. Stage-discharge relation not affected by ice.

DIVERSION. Several irrigation ditches divert from tributaries a very small 

proportion of the run-off.

REGULATION. Flashboard dam 800 feet above gage controls lake level at low 

water in interest of navigation. Monthly summaries of flow have been 

corrected for storage.

ACCURACY. Stage-discharge relation practically permanent. Rating curve 

fairly well defined below 10,000 second-feet. Gage read to hundredths once 

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

table. Records good.

COOPERATION. Gage-height record furnished by Chelan Electric Co.

Discharge measurements of Chelan River at Chelan, Wash., during the year ending

September SO, 1925

Date

Dec. 4..........

Apr. 2 ..........

Gage 

height

Feet

4.77

6.36

Discharge

Sec.-ft.

585

1,840

Date

May 9 __ ....

July 1.. ........

Gage 

height

Feet 

7.83

9.43

Discharge

Sec.-ft. 

3,860

Date

July 9.... ......

Ga^e 

height

Feet 

8.68

5.82

Discharge

Sec.-fl. 

4,780
128 SUBFACB WATER SUPPLY, 1925, PART XII A

Daily discharge, in second-feet, of Chelan River at Chelan, Wash., for the years 

ending September 30, 1924 and 1925

Day

1923-24 

1. ... .... 

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

3 ......... -

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

5 ........

6.. - ....

7......-..-.--.

8_ .

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

10 

11 

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

13....... ..-.

14 

15. 

16. 

17.. _ ......

18. _ ..........

19 

20. 

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

22. 

23--..-.........

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

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

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

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

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

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

31... . ....

1924-25 

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.

810

810

810

700

700

700

700

650

700

650

650

650

650

625

625

625

600

600

600

600

600

575

575

575

575

550

528

528

528

865

865

865

865

810

810

810

810

810

810

810

755

755

755

755

755

755

755

755

755

755

700

700

700

700

700

755

700

700

700

700

Nov.

528

528

505

505

505

482

482

482

460

460

450

440

430

420

440

420

420

420

402

402

402

402

402

402

385

370

370

355

355

355

700

700

700

700

700

700

650

650

700

700

700

650

650

650

650

625

600

600

600

575

600

600

600

575

575

575

575

575

575

575

Dec.

355

355

342

342

342

402

385

355

355

355

342

342

355

342

342

355

355

342

342

342

330

342

355

355

355

355

575

575

575

575

575

575

575

575

K7C

528

575

650

730

810

810

865

925

985

1,050

1,050

1,050

1,050

1,050

1,050

1,050

1,050

1,050

1,120

1,120

Tan.

355

342

342

342

330

330

342

330

355

330

330

330

330

342

330

330

330

320

320

320

320

320

320

320

320

320

330

330

985

QQK

1,050

1,120

1,050

1,050

1,050

1,050

1,120

1,050

985

925

865

865

925

865

865

925

925

925

925

QOK

810

Rift

810

810

810

810

810

810

Feb

330

342

342

355

355

370

355

370

370

370

370

482

550

600

600

625

650

700

810

755

700

755

700

810

865

755

810

810

810

810

810

865

865

865

865

925

925

925

QOK

925

865

865

865

865

865

865

865

810

810

865

QOK

865

Q1 A

810

810

Mar.

810

865

865

865

865

985

865

865

925

925

1,050

1,200

2,820

3,380

3,240

2,960

2,820

2,960

2,820

2,680

2,540

2,400

2,260

2,120

2,120

1,850

1,730

1,730

1,730

1,610

1,500

865

865

865

865

865

865

865

810

810

810

810

810

810

810

865

1,200

1,290

2,680

2,680

2,540

2

Af)f\

2,400

2 9AA

2,260

2,120

2,120

1,980

1,980

1 QRfl

1,850

Apr.

1,500

1,390

1,290

1,200

1,290

1,200

1,200

1,290

1,290

1,390

1,390

1,610

1,610

1,610

1,610

1,610

1,610

1,730

1,610

1,610

1,610

1,610

1,610

1,500

1,500

1,500

1,500

1,500

1,610

1,730

1,850

1,850

1,850

1,850

1,850

1,850

1,850

1,980

1,980

2,120

2,400

2,820

3,240

3,380

3,380

3,380

3,520

3,520

3,450

3,380

3,380

3,240

o O4.fl

3,240

3,240

q i AA

2,960

2,960

O Q«f\

May

1,850

1,980

2,120

2,260

2,400

2,540

2,540

2,680

2,680

2,960

3,240

3,800

4,370

5,120

5,900

6,570

6,910

7,080

7,250

7,590

7,770

7,950

7,950

7,950

7,770

7,590

7,250

6,910

6,570

6,230

6,060

2,960

2,960

2,890

2,820

3,100

3,240

3,520

3,660

3,800

3,940

4,080

4,370

4,670

4,970

5,420

5,900

6,490

7,080

7,590

8,130

8,670

8,670

8,670

8,490

Q 01 A

7,950

7 QRA

7,770

7 ^Qfl

7,250

Tune

6,060

6,060

6,230

6,230

6,230

5,900

5,740

5,580

5,420

5,270

5,270

5,120

4,970

4,820

4,820

4,670

4,670

4,370

3,940

3,240

2,540

2,120

1,850

1,980

1,980

2,260

2,400

2,400

2,540

2,540

6,910

6,910

6,400

6,060

5,900

5,740

5,580

5,420

5,420

5,420

5,270

5,270

5,270

5,120

4. Q7fl

5,120

5,270

5,420

5,580

5,740

5,900

6,060

6,400

6,570

6,740

6,740

6,910

6,570

6,570

Tuly

3,100

3,240

3,380

3,940

3,940

4,080

3,800

3, 520

3,380

3,240

3,240

2,900

2,960

2,960

2,980

2,820

2,820

2,820

2,680

2,540

2,400

1,730

1,610

1,610

1,610

1,610

1,730

1,730

1,730

1,610

1,730

6,230

6,060

5,900

5,900

5,740

5,580

5,420

5,270

5,120

4 Q7fl

d Q7fl

4,900

4,820

4,670

4,520

4,370

4,370

4,220

4,080

3,940

3,800

3,660

3,520

3

OQA

o oifi

2 960

2 4.nfi

1 73fi

Aug.

1,850

1,730

1,610

1,610

1,610

1,500

1,500

1,500

1,500

1,500

1,500

1,500

1,500

1,500

1,500

1,500

1,500

1,500

1,390

1,500

1,390

1,390

1,390

1,390

1,390

1,390

1,390

1,390

1,290

1,290

1,200

1,850

1,850

1,850

1,850

1,850

1,850

1,850

1,730

1,730

1,730

1,730

1,730

2,120

2,120

1,980

1,920

1,850

1,850

1,610

1,500

1 rfm

1,500

1,400

1 290

i 9on

1,200

1,200

1,200

1,200

Sept.

1,200

1,200

1,200

1,200

1,200

1,200

1,200

1,200

1,200

1,120

1,120

1,120

1,120

1,120

1,050

1,050

1,050

1,050

1,050

985

985

985

925

925

925

925

925

925

925

865

1,120

1,120

1,120

1,120

1,050

1,050

1,050

1,120

1,120

1,050

1,050

1,050

1,080

1,120

1,050

1,050

1,050

985

985

985

985

985

985

985

QQR

925

925

925

925

NOTE. The above record for 1923-24 is a revision and supersedes that published in Water-Supply 

Paper 592. Gage not read Nov. 11-13,1923, or May 18,1924; discharge interpolated. Gage not read Dec. 

14, 1924, Jan. 1, Apr. 12,19, 26, May 3, 8, 10,17, 24, 31, Tune 7,14, July 12, 26, Aug .2, 9, 18, 23, 30, and Sept. 

6, 13, 20, 27, 1925; discharge estimated.
ENTIAT KIVER BASIN 129

Monthly discharge of Chelan River at Chelan, Wash., for the years ending September SO, 1924 and 1925

[Drainage area, 950 square miles]

Month

1923-24 

October __________

February _________

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

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

1924-25

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

Observed discharge 

in second-feet

Maximum

810 

528 

402 

355 

865 

3,380 

1,730 

7,950 

6,230 

4,080 

1,850 

1,200

7,950

865 

700 

1,120 

1,120 

925 

2,680 

3,520 

8,670 

6,910 

6,230 

2,120 

1,120

8,670

Minimum

528 

355 

330 

320 

330 

810 

1,200 

1,850 

1,850 

1,610 

1,200 

865

320

700 

575 

528 

810 

810 

810 

1,850 

2,820 

4,970 

1,730 

1,200 

925

528

Mean

638 

433 

352 

330 

578 

1,820 

1,490 

5,220 

4,240 

2,690 

1,470 

1,060

1,700

766 

634 

818 

934 

864 

1,500 

2,770 

5,840 

5,880 

4,330 

1,640 

1,030

2,260

Run-off in acre-feet

Observed

39, 200 

25, 800 

21,600 

20, 300 

33,200 

112, 000 

88, 700 

321, 000 

252, 000 

165, 000 

90, 400 

63, 100

1, 230, 000

47, 100 

37,700 

50, 300 

57,400 

48,000 

92, 200 

165, 000 

359, 000 

350, 000 

266,000 

101, 000 

61, 300

1, 640, 000

Stored

-3, 600 

-10,400 

+8,900 

+300 

+22, 700 

-59, 000

+5,300 

+101, 000 

-19, 700 

-13, 100

-19, 000 

-23, 000

-9, 600

-5,100

-2, 400 

+47, 400 

-9, 300 

+1,100 

-36, 500

+19, 700 

+89, 500 

-12,600

-63, 200 

-19, 400 

-28, 600

-19,400

Without 

storage

35,600 

15,400 

30,500 

20, 600 

55,900 

53, 000 

94,000 

422, 000 

232,000 

152, 000 

71,400 

40,100

1, 220, 000

42,000 

35, 300 

97, 700 

48,100 

49,100 

55,700 

185, 000 

448,000 

337, 000 

203,000 

81, 600 

32, 700

1, 620, 000

Discharge 

without 

storage in 

second-feet

Mean

579 

259 

496 

335 

972 

862 

1,580 

6,860 

3,900 

2,470 

1,160 

674

1,680

683 

593 

1,590 

782 

884 

906 

3,110 

7,290 

5,660 

3,300 

1,330 

550

2,230

Per

square 

mile

0.609 

.273 

.522 

.353 

1.02 

.907 

1.66 

7.22 

4.11 

2.60 

1.22 

.709

1.77

.719 

.624 

1.67 

.823 

.931 

.954 

3.27 

7.67 

5.96 

3.47 

1.40 

.579

2.35

Run02 in 

inches

0.70 

.30 

.60 

.41 

1.10 

1.05 

1.85 

8.32 

4.59 

3.00 

1.41 

.79

24.12

.83 

.70 

1.92 

.95 

.97 

1.10 

3.65 

8.84 

6.65 

4.00 

1.61 

.65

31.87

NOTE. The above record for the year ending Sept. 30,1924, is a revision of the 1924 data and supersedes 

that published in Water-Supply Paper 592. Storage estimated from gage-height record of Lake Chelan 

and capacity of lake determined from areas measured on topographic maps.

ENTIAT RIVER BASIN 

EXTIAT RIVER AT ENTIAT, WASH.

LOCATION. In sec. 18, T. 25 N., R. 21 E., one-eighth of a mile below power plant

of Wenatchee Valley Gas & Electric Co., three-fourths of a mile west of

Entiat, Chelan County, and 1 mile above mouth. 

DRAINAGE AREA. 419 square miles (measured on topographic maps). 

RECORDS AVAILABLE. October 5, 1910, to September 30, 1925, when records

were discontinued.

GAGE. Inclined staff on left bank; read by L. G. Asher. 

DISCHARGE MEASUREMENTS. Made from private bridge 200 feet below power

plant or by wading. 

CHANNEL AND CONTROL. Bed composed of gravel and boulders; shifting. One

channel at all stages. Left bank high, not subject to overflow; right bank

slopes gradually. Stage of zero flow, 0.5±0.1 foot; determined September

24, 1922.
130 SURFACE WATER SUPPLY, 1925, PART XII A

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 4.2 feet May

19 and 20 (discharge, 3,670 second-feet); minimum stage recorded, 0.65

foot on December 9 (discharge, 59 second-feet).

1910-1925: Maximum stage recorded, 5.0 feet June 17, 1916 (discharge,

5,150 second-feet); minimum discharge on record, 32 second-feet, the result

of current-meter measurement made January 30, 1923, when stage-discharge

relation was affected by ice. 

ICE. Stage-discharge relation affected by ice; flow estimated from gage-height

records, discharge measurements, observer's notes, and weather records. 

DIVERSIONS. Several diversions above station for irrigation. Entiat Irrigation

Co.'s high line canal (capacity about 20 second-feet) carries water past

station.

REGULATION. Flow slightly affected by changes in load at power plant. 

ACCURACY. Stage-discharge relation changed December 30; affected by ice

December 17 to January 27. Rating curves fairly well defined. Gage read

to hundredths once daily. Daily discharge ascertained by applying daily

gage height to rating table. Records good except during periods when

stage-discharge relation was affected by ice. 

COOPERATION. Gage-height records furnished by Washington Coast Utilities

Co.

The following discharge measurements were made: 

July 1, 1925: Gage height, 2.44 feet; discharge, 1,010 second-feet. 

July 10, 1925: Gage height, 2.08 feet; discharge, 678 second-feet. 

August 25, 1925: Gage height, 0.91 foot; discharge, 119 second-feet.

Daily discharge, in second-feet, of Eniiat River at Entiat, Wash., for the year ending

September 30, 1925

Day

1 ... ..... 

3 - 

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

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.

104

104

104

106

104

95

90

90

90

90

90

86

95

108

104

99

99

99

90

SO

88

88

88

128

155

161

161

155

155

155

Nov.

158

161

161

150

147

144

144

150

139

128

123

113

128

128

128

123

108

108

128

128

123

118

113

113

108

104

67

86

95

Dec.

106

139

139

128

128

133

59

82

229

237

355

548

458

99Q

1 .

> 110

Jan.

160

1

160

130

140

143

149

143

Feb.

138

143

143

175

169

149

143

138

143

138

138

130

127

130

127

138

138

149

Mar.

156

162

159

169

175

175

169

169

172

169

162

156

162

169

169

162

169

182

182

189

204

211

211

219

219

211

219

Apr.

219

227

234

242

250

267

330

563

630

705

830

1,070

1,070

1,070

1,020

1,020

875

705

668

630

630

596

630

630

668

705

May

745

785

785

875

922

1,020

1,650

1,650

1,650

1,650

1,780

1,920

2,070

2,360

2,390

3,090

3, 060

3,280

3,470

3,670

3,670

3,470

3,280

3,090

2,560

2,070

2,070

2,070

2,070

1,920

1,650

June

1,520

1,400

1,280

1,170

1,070

1,070

1,070

1,120

1,280

1,340

1,340

1,400

1,400

1,460

1,400

1,400

1,520

1,650

1, 650

1,650

1,650

1,920

1,780

1,780

1,650

1,580

1, 580

1,460

1,340

1,280

July

1,020

875

785

705

668

630

630

630

630

668

668

630

596

596

596

563

532

501

501

501

444

390

390

364

364

339

339

330

330

320

311

Aug.

301

292

275

271

242

234

227

219

219

204

197

193

193

175

160

169

162

156

146

143

138

138

138

132

121

116

114

111

138

138

132

Sept.

132

121

116

107

102

102

102

98

98

98

98

98

93

93

98

100

100

100

100

98

98

93

93

93

91

93

95

114

111

107
WENATCHEE KIVER BASIN 131

Monthly discharge of Entiat River at Entiat, Wash., for the year ending Septem,'

ber 30, 1925

Month

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

September.-...-.. ______ .... _ . _ ..--..--..--.. ...

Discharge in second-feet

Maximum

161

161 

548

175 

219 

1,070 

3,670 

1,920 

1,020 

301 

132

3,670

Minimum

86 

67 

59

127 

156 

219 

745 

1,070 

311 

111 

91

Mean

109 

126 

155 

147 

143 

178 

656 

2,150 

1,440 

543 

181 

101

Run-off in 

acre-feet

6,700 

7,500 

9,530 

9,040 

7,940 

10,900 

39,000 

132,000 

85,700 

33,400 

11,100 

6,010

496 | 359,000

WENATCHEE EIVEE BASIN 

WE2J-ATCHEE SIVER HEAR IEAVEUWOSTH, WASH.

LOCATION. In SW. M sec. 12, T. 26 N., R. 17 E., 1,500 feet below highway bridge 

at Plain, half a mile below Beaver Creek, and 14 miles north of Leaven worth, 

Chelan County.

DRAINAGE AREA. 591 square miles (measured on topographic maps).

RECORDS AVAILABLE. November 27, 1910, to September 30, 1925.

GAGE. Since September 6, 1913, vertical and inclined staff gage on left bank; 

read by P. H. Hertzog.

DISCHARGE MEASUREMENTS. Made from cable three-eighths of a mile above 

gage or by wading.

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

likely to shift during extremely high water. One channel at all stages. 

Banks high and not subject to overflow.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 9.03 feet May 

20 (discharge, 12,600 second-feet); minimum discharge occurred during 

period when stage-discharge relation was affected by logs.

1910-1925: Maximum stage recorded, 11.8 feet December 13, 1921 (discharge, 20,800 second-feet); minimum discharge, 316 second-feet September 

29 and 30 and October 11 and 12, 1915.

ICE. Stage-discharge relation affected by ice during severe winters; flow estimated from gage-height records, discharge measurements, observer's notes, 

and weather records.

DIVERSION. The Wenatchee Park Land & Irrigation Co. diverts a maximum 

of about 12 second-feet from Chiwawa River during irrigation season.

REGULATION. None.

ACCURACY. Stage-discharge relation practically permanent except as affected 

by ice and logs on control. Rating curve well defined. Gage read to 

hundredths once daily. Daily discharge ascertained by applying daily gage 

height to rating table. Records good except for estimated periods.

Discharge measurements of Wenatchee River near Leavenworth, Wash., during the 

year ending September 30, 1925

Date

Nov. 6..........

Dec. 3. _ ......

Dec. 19.... -

Gage 

height

Feet 

4.00

3.32

4.46

Discharge

Sec.-ft. 

1,130

636

2,270

Date

Feb. 3.. ...... ..

Gage 

height

Feet 

4.73

4.56

6.82

Discharge

Sec.-ft. 

2,060

1,400

6,900

Date

June 30 .........

July 10.. __ ...

Gage 

height

Feet 

6.26

5.22

3.59

Discharge

Sec.-ft. 

5,410

3,380

657
132 SURFACE WATER SUPPLY, 1925, PART XII A

Daily discharge, in second-feet, of Wenatchee River near Leavenworth, Wash., for 

the year ending September 30, 1925

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.

500

500

1,000

Nov.

1,160

740

740

Dee.

620

2,320

4,110

7,470

7,710

6,710

5,110

2,760

2,180

1,790

1,540

1,300

1,190

1,140

1,140

1 190

1,240

1,240

1 3fin

Jan.

1,300

1,240

1,190

1,190

1,190

1,140

1 140

1,140

1,140

1,190

1,190

1,300

1,240

1,190

1,190

1,360

1,480

1,480

1,360

1,190

1,420

1,420

Feb.

1,480

1,920

2,050

1 9'0

1,790

1,660

1,300

1,140

1,080

1,080

1,030

980

QQfl

930

980

980

1,190

1,140

1,240

Mar.

1,190

1,240

1,420

1,420

1,300

1, 240

1,220

1 1QA

1,140

1,080

1,080

1,080

1,140

1,140

1,140

1,300

1,420

1,660

1,790

1,540

1.3CO

1 °40 '

Apr.

1,240

1,360

1,420

1,540

1,920

2,610

2,180

2,700

3,740

4 Qflfl

6,710

7,450

7,710

6,470

5,770

5,770

4,900

4,490

3,740

3,390

3, 230

3,070

? 910

2,910

3,230

3,740

May

3,830

3,920

4,020

4,110

5,770

8,230

7,710

7,450

6,710

7,200

7 200

7^710

8,760

11,000

11,800

12, 400

19 Rflfl

12,100

9,8-iO

7,710

7,200

7,200

7,200

7,200

6,710

6,230

June

4,900

4,110

3,920

3,740

3,740

3,560

4,110

4,490

4,490

5,330

5,110

4,900

4,900

4, 090

6,470

6,710

6,710

6, 950

7,970

7,200

7,200

6,710

7,200

7,200

5,550

July

4,490

4,300

4,490

4 don

3,740

3,390

3,230

3,230

3,390

3,390

3,390

2,910

2,760

2,610

2,460

2,180

2,180

2,180

2,180

2,050

2,180

2,050

1,920

1,920

1,790

1,790

1,790

1,660

Aug.

1,300

880

 640

Sept.

 580

540

450

NOTE. Braced figures show estimated mean discharge for periods indicated, based on results of seven 

discharge measurements, observer's notes, and records at gaging stations on near-by streams.

Monthly discharge of Wenatchee River near Leavenworth, Wash., for the year ending

September 30, 1925

[Drainage area, 591 square miles]

Discharge in second-feet Run-off

Month

July. -. .-..........-. ...........

Maximum

7,710

2,050

1,790

7,710

12, 600

7,970

4,490

12, 600

Minimum

1,140

930

1,030

1,240

3,390

3,580

1,680

Mean

677

880

2.060

1,280

1,290

1, 300

3,810

7,820

5,600

2,770

930

523

2,420

Per 

square 

mile

1.15

1.49

3.49

2.17

2.18

2.20

6.45

13.2

9.48

4.69

1.57

.885

4.09

Inches

1.33

1.66

4.02

2.50

2.27

2.54

7.20

15.22

10.58

5.41

1.81

.99

55.53

Acre-feet

41, 600

52, 400

127, 000

78,700

71,600

79, 900

227, 000

481,000

333,000

170, 000

57,200

31,100

1, 750, 000

YAKIMA RIVER BASIN 

KEECHELUS LAKE NEAR MARTIN, WASH.

LOCATION. At outlet of lake, 1M miles northeast of Meadow Creek railroad 

station, 3^ miles northwest of Martin, Kittitas County, and 9^ miles northwest of Easton.

DEAINAGE AREA. 55 square miles (measured on topographic maps).

RECORDS AVAILABLE. January 12, 1906, to September 30, 1925.

GAGE. Vertical and inclined staff attached to pier of bridge to gage house; set 

to sea-level datum; read by L. M. Ralph.
YAKIMA RIVER BASIN 133

EXTREMES op STORAGE. Maximum stage recorded during year, 2,518.09 feet 

at 11 a. m. May 16 (storage, 160,570 acre-feet); minimum stage recorded, 

2,429.61 feet at 12 p. m. October 1 (storage, 5,770 acre-feet).

1906-1925: Maximum stage recorded, that of May 16, 1925; minimum 

stage recorded, 2,429.26 feet from 5.25 p. m. October 5 to 7 a. m. October 

6, 1922 (storage, 5,330 acre-feet).

STOBAGE. Capacity of reservoir at crest of spillway, 152,000 acre-feet; elevation 

of gate sill, 2,425 feet and of spillway crest, 2,515 feet. Record of storage 

or release each month used to determine discharge without storage at gaging 

station below dam.

ACCURACY. Staff gage read to hundredths twice daily. Records excellent.

COOPERATION. Complete records furnished by United States Bureau of Reclamation.

Daily storage, in acre-feet, of Keechelus Lake near Martin, Wash., for the year 

ending September 30, 1925

Day

2........

3... .....

4........

5 .....

6. ....

7.. ------

8 _ 

9

10........

11 _ .....

12..... 

13.....-.,

14.-.-...

15........

16........

17

18__.___._

19........

20........

21... .

22........

23... ..

24.... ..

2£_.__ ....

26........

97

2S_ _.__

29_ 

30 ....

31........

Oct.

5,830 

6,240 

7,030 

7,310 

7,340

7,470 

7,540 

7,650 

7,740 

7,680

7,630 

7,610 

7,630 

7,760 

7,910

8,170 

8,460 

8,660 

8,890 

9,070

9,170 

9,280 

9,420 

9,880 

10, 850

11,590 

12, 120 

12, 710 

13, 300 

13, 970 

14, 550

Nov.

15, 010 

15,720 

16, 460 

17, 280 

18,100

18, 710 

19, 280 

19, 870 

20, 350 

20, 690

21, 120 

21, 460 

21, 790 

22, 170 

22,500

22, 690 

22, 890 

23, 110 

23, 67C 

24, 380

25, 080 

25, 720 

26, 510 

27, 130 

27, 730

28, 310 

28,730 

29,060 

29, 430 

29, 740

Dec.

29, 990 

30, 280 

30, 520 

30,830 

31, 150

31,400 

31,620 

31, 790 

32, 030 

33, 010

36, 170 

41, 490 

46, 020 

49, 570 

52, 980

55, 050 

56,090 

56, 950

57, 480 

58,040

58, 530 

58, 750 

59, 180 

59,580 

59, 890

60,090 

60, 410 

61, 040 

61, 570 

62, 170 

62, 690

Jan.

63,230 

63, 720 

64, 120 

64, 720 

65, 320

65, 800 

66, 390 

66,800 

67, 140 

67,700

68, 080 

68, 530 

68, 760 

69,060 

69, 260

69, 510 

69, 720 

70, 160 

70, 650 

71, 150

71,660 

72, 170 

72,700 

73, 140 

73, 570

73, 960 

74, 410 

74, 930 

75, 500 

76, 290 

77, 840

Feb.

79, 830 

81, 540 

83, 840 

85, 920 

87, 440

88,600 

89, 480 

90, 090 

90,740 

91, 270

91, 680 

92, 060 

92, 390 

92, 740 

93, 060

93, 290 

93, 580 

93,840 

94, 030 

94, 290

94,640 

95,000 

95,200 

95, 810 

96, 210

96, 790 

97, 230 

97, 610

Mar.

97, 910 

98, 310 

98, 760 

99,200 

99, 620

100, 030 

100,320 

100, 640 

100, 890 

101, 090

101, 380 

101, 590 

101, 810 

102, 040 

102, 370

102, 720 

103, OSO 

103, 380 

103, 570 

103, 840

104,190 

104, 650 

105, 230 

105, 670 

106, 260

106, 720 

107, 140 

107, 520 

107, 920 

108, 240

Apr.

108, 940 

109, 200 

109, 580 

110, 010 

110, 520

111, 050 

111, 720 

112,470 

113, 650 

115, 070

117, 420 

120, 070 

122, 620 

124, 580 

126, 060

127, 520 

129, 030 

130, 400 

131, 570 

132, 510

133, 240 

133, 930 

134, 590 

135, ] GO 

135, 610

136, 120 

136, 600 

136, 930 

137, 770 

138, 670

May

139, 610 

140, 680 

141, 900 

142, 880 

144, 160

146, 080 

148, 470 

150, 670 

152, 110 

153, 550

154, 990 

156, 500 

158, 130 

159, 470 

160, 190

160, 370 

159, 720 

159, 420 

159, 240 

159, 210

159, 000 

158, 570 

158, 080 

157, 620 

157, 360

158, 310 

159, 130 

159, 420 

159, 490 

159, 420 

159, 240

June

159, 130 

159, 060 

158, 930 

158, 900 

158, 820

158, 800 

158, 880 

158, 900 

158, 980 

159, 000

158,980 

159, 030 

159, 080 

159, 080 

159, 110

159, 160 

159, 240 

159, 290 

159,290 

159, 260

159,310 

159, 360 

159, 340 

159, 180 

159, 130

159, 180 

159, 160 

159, 110 

158, 820 

158,700

July

158, 440 

157, 670 

156, 900 

156, 140 

155, 350

154, 360 

153, 350 

152, 340 

151, 350 

150, 020

148, 540 

147, 270 

145, 660 

144, 260 

142, 560

140, 680 

138, 670 

136, 740 

134, 640 

132, 560

130, 420 

128, 330 

126, 180 

124, 230 

122, 190

120, 160 

118, 160 

116,C80 

114, 06C 

111, 940 

109, 880

Aug.

107, 730 

105, 460 

103, 530 

101, 420 

99, 280

97, 150 

95,120 

92, 980 

90, 940 

88, 880

86, 770 

84, 730 

82, 590 

80, 450 

78, 170

76, 010 

73, 450 

71, 340 

69, 140 

66, 880

63, 360

61, 590 

60, 090 

58, 360 

56,240

54, 160 

52, 130 

50, 460 

49, 210 

48, 020 

46, 830

Sept.

45, 820 

44, 570 

43, 360 

42, 210 

40, 860

39, 530 

38, 190 

36, 960 

36, 010 

35, 450

34, 800 

34, 280 

33, 600 

32, 960 

32, 380

31,900 

31, 130 

30, 340 

29, 480 

28, 750

28, 050 

27, 260 

26, 530 

25, 850 

25, 170

24, 490 

23, 700 

23, 030 

22, 230 

21, 490

YAKIMA RIVER WEAR MARTIN, WASH.

LOCATION. Below dam at outlet of Keechelus Lake, 1^ miles east of Meadow 

Creek railroad station, 3^ miles northwest of Martin, Kittitas County, 

and Q^2 miles northwest of Easton.

DRAINAGE AREA. 55 square miles (measured on topographic maps).

RECORDS AVAILABLE. October 18 to November 14, 1903; January 28, 1904, to 

September 30, 1925.

GAGE. Inclined staff gage in paved section on left side of outlet works, installed 

December 2, 1916; read by L. M. Ralph.

DISCHARGE MEASUREMENTS. Made from cable 700 feet below dam or by wading.

CHANNEL AND CONTROL. Bed composed of gravel; shifts at high stages. Logs 

and brush sometimes lodge on riffle control below gage and affect stagedischarge relation.
134 SUEFACE WATER SUPPLY, 1925, PART XII A

EXTREMES OP DISCHARGE. Maximum discharge during year, 1,630 second-feet 

on May 16 (computed from spillway overflow and tunnel discharge); minimum discharge, 12 second-feet October 21 to November 4.

1904-1925: Maximum discharge, 7,370 second-feet at 10.45 a. m. March 

25, 1915, when temporary crib dam was washed out (gage destroyed; discharge computed from hourly gage readings of lake surface and estimated 

natural inflow to lake); practically no flow when gates in Keechelus Reservoir dam are closed.

ICE. Stage-discharge relation not affected by ice.

DIVERSIONS. None.

REGULATION. Flow partly controlled by storage and release of water at Keechelus Reservoir. Monthly discharge without storage determined from records 

of stage at reservoir.

ACCURACY. Stage-discharge relation changed slightly on May 16. Rating 

curves fairly well defined. Gage read to hundredths twice daily. Daily 

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

Records good.

COOPERATION. Complete records furnished by United States Bureau of 

Reclamation.

Discharge measurements of Yakima River near Martin, Wash., during the year 

ending September 30, 1925

Date

Oct. 17 . 

July 20. 

Gage 

height

Feet

7.70

Discharge

Sec.-ft. 

16.1

1,150

Date

Sept. 4. _____ .. ...

Gage 

height

Feet 

7.60

6.33

Discharge

Sec.-ft. 

1,100

625

Daily discharge, in second-feet, of Yakima River near Martin, Wash., for the year 

ending September 30, 1925

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..... 

97

28 . 

OQ

30 - .

31 

Oct.

119

126

126

126

121

122

136

141

140

140

140

140

140

141

66

18

15

14

14

13

12

1 9

12

12

12

12

12

12

12

Nov.

12

12

12

13

13

13

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

15

15

15

15

15

15

16

Dec.

16

17

16

16

16

17

20

21

22

22

99

23

no

OQ

23

23

23

24

24

24

94. M

Jan.

24

24

24

24

24

f)A

24

24

24

24

24

25

OK

f)K

25

25

OK

oe

OK

26

26

26

26

26

26

26

Feb.

26

26

26

27

28

28

28

28

28

29

30

30

30

30

30

30

30

30

30

30

30

30

30

30

sn

30

30

30

Max.

30

31

31

31

31

31

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

So

32

32

32

32

32

32

32

32

33

Apr.

33

33

34

34

34

35

35

35

35

35

35

36

36

36

36

36

36

36

35

35

35

35

35

35

35

35

35

35

35

35

May

35

35

35

35

35

35

35

35

35

35

35

36

161

632

1,020

1,630

1,600

1,440

1,360

1,350

1,260

1,080

937

875

363

153

465

597

635

597

June

464

429

376

365

333

322

354

376

397

408

397

418

441

441

452

476

511

534

534

523

546

571

465

489

477

453

334

285

July

485

596

584

623

637

637

637

678

720

810

841

841

841

873

939

973

1,040

1,080

1,120

1,120

1,080

1,040

1,040

1,040

1,080

1,080

1,080

1,080

1,080

Aug.

1,080

1,080

1,080

1,080

1,080

1,080

1,080

1,080

1,080

1,080

1,080

1,120

1,160

1,160

1,160

1,160

1,160

1,160

1,160

1,160

1,160

1,160

1,160

1,160

1,160

1,010

810

692

692

692

Sept.

692

706

692

692

779

810

779

634

460

416

416

416

416

416

416

416

449

483

483

483

483

483

483

483

483

483

483

483

483

471
YAKIMA RIVER BASIN 135

Monthly discharge of Yakima River near Martin, Wash., for the year ending September 30, 1925

[Drainage area, 55 square miles]

Month

October.. __________

November _ .. _____ __

February.. _ .............

April... -..-.. _... __ ....

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

Observed discharge 

(second-feet)

Maximum

141 

16 

24 

26 

30 

33 

36 

1,630 

571 

1,120 

1,160 

810

1,630

Minimum

12 

12 

16 

24 

26 

30 

33 

35 

285 

485 

692 

416

12

Mean

68.7 

13.9 

20.2 

24.7 

29.1 

31.8 

35.0 

551 

440 

900 

1,070 

529

312

Run-off (acre-feet)

Observed

4,220 

827 

1,240 

1,520 

1,610 

1,960 

2,080 

33,900 

28,200 

55, 400 

65,700 

31,500

226,000

Stored

+8, 770 

+15, 200 

+33, 000 

+15, 200 

+19, 800 

+11, 000 

+30, 100 

+20,600 

-540 

-48, 800 

-63,000 

-25, 300

+16, 000

Without 

storage

13,000 

16,000 

34,200 

16,700 

21,400 

13,000 

32,200 

54,500 

25,700 

6,600 

2,700 

6,200

242,000

Discharge 

without storage (secondfeet)

Mean

211 

269 

556 

272 

385 

211 

541 

886 

432 

107 

43.9 

104

335

Per 

square 

mile

3.84 

4.89 

10.1 

4.95 

7.00 

3.84 

9.84 

16.1 

7.85 

1.95 

.798 

1.89

6.09

Runoff

4.43 

5.46 

11.64 

5.71 

7.29 

4.43 

10.98 

18.56 

8.76 

2.25 

.92 

2.11

82.54

YAKIMA RIVER AT CIE ELUM, WASH.

LOCATION. In sec. 27, T. 20 N., R. 15 E., at highway bridge at Cle Elum, 

Kittitas County, just above Roslyn Creek, 3 miles below mouth of Cle 

Elum River, and 6J^ miles above Teanaway Creek.

DRAINAGE AREA. 500 square miles (measured on topographic maps).

RECORDS AVAILABLE. August 24, 1906, to September 30, 1925.

GAGE. Stevens continuous water-stage recorder in wooden shelter on left bank, 

just below highway bridge since October 22, 1924. Owing to reconstruction 

of highway bridge and recording gage equipment, several temporary staff 

gages at various locations on the left bank were read from June 28, 1923, to 

October 21, 1924. Gages read by J. F. Huffman.

DISCHARGE MEASUREMENTS. Made from highway bridge or by wading.

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

channel at all stages. Control at low water formed by broad riffle about 

1,200 feet below gage; riffle drowned out at high water. Control shifts 

during floods.

EXTREMES OP DISCHARGE. Maximum stage recorded during year, 7.00 feet at 

4 a. m. May 17 (discharge, 8,590 second-feet); minimum stage recorded, 

1.25 feet at 3 p. m. October 26 (discharge, 290 second-feet).

1906-1925: Maximum stage measured from high-water marks, 12.5 feet 

November 14, 1906 (discharge, about 25,600 second-feet); minimum stage 

recorded, 0.83 foot from 7.30 a. m. November 17 to 7.15 a. m. November 19, 

1923 (discharge, 144 second-feet).

ICE. Stage-discharge relation seriously affected by ice during severe winters.

DIVERSIONS. None.

REGULATION. Flow partly regulated by storage and release of water at Keechelus, 

Kachess, and Cle Elum Reservoirs. Monthly discharge without storage 

determined from records of stage at reservoirs.

ACCURACY. Stage-discharge relation practically permanent; not affected by ice. 

Rating curve well defined. Operation of water-stage recorder satisfactory. 

Daily discharge ascertained by applying mean daily gage height to rating 

table. Records good.

COOPERATION. Complete record furnished by United States Bureau of Reclamation.
136 SURFACE WATER SUPPLY, 1925, PART XII A

Discharge measurements of Yakima River at Cle Elum, Wash., during the year 

ending September 30, 1925

Date

Oct. 23.. .......

Dec. 30 _____

Gage 

height

Feet 

1.32

2.31

Discharge

Sec.-ft. 

340

975

1,260

Date Gage 

height

Feet 

5.62

4.89

4 09

Discharge

Sec.-ft. 

5,320

4,080

2,810

Date

July 21-. .

Sept. 2.. .......

Gage 

height

Feet 

3.76

3.96

3.93

Discharge

Sec.-ft. 

2,390

2,560

2,550

Daily discharge, in second-feet, of Yakima River at Cle Elum, Wash., for the year 

ending September 30, 1925

Day

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

2 .....

3 

4 

5 

6 

7. _ ..........

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

9... ..... 

10 

11 

12 

13 

14 

15 

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

17 

18 

19

20 

21 

22 

23 

24 

25 

27 

28 

29

30.... . 

O1

Oct.

726

752

496

496

508

508

508

532

538

484

460

472

538

520

508

449

405

385

375

360

346

346

337

314

328

298

337

346

355

360

Nov.

355

365

365

310

310

310

314

314

324

319

319

qiQ

346

410

427

422

416

405

422

520

628

713

758

726

676

628

598

550

508

410

Dec.

410

416

427

427

444

416

405

400

478

1.550

5

AAA

6,690

6,030

A onn

3,290

2,500

1,920

1,600

1,410

1,280

1,160

1,070

926

765

850

926

one;

Jan.

OCA

858

858

828

902

902

835

821

758

7QD

758

7 co

664

622

562

586

664

694

739

720

746

713

706

713

739

828

1,110

Feb.

1,500

1,700

2,630

2,200

1,920

1,700

1,500

1,110

982

958

918

880

858

842

835

858

oin

Q49

1,030

1,070

1,200

1,200

Mar.

1,160

1,160

1,200

1,240

1,240

1,200

1,160

1,160

1,110

1,030

934

910

902

Q49

990

966

910

1,110

1,200

1,320

1,500

1,500

1,650

1,600

1,500

1,410

1,320

1,280

Apr.

1,240

1,240

1,240

1,370

1,600

1,920

2,260

2,700

3,370

4,410

5,400

6

AQA

6,030

5,400

4,500

4,040

3,870

3,700

3,290

2,910

2,630

2,200

2,080

1,920

1,810

1,810

1,860

2,030

2,380

May

2,630

2,840

2,840

2,770

2,980

3,780

5,200

5,400

4,500

3,950

3,870

4,130

4,310

5,000

7,390

8,350

7,630

7,390

7,390

7,150

6,470

5,400

4,700

4,220

<* v?n

3,530

3,950

4,040

3,700

3,210

June

2,910

2,630

2,500

2,260

2,140

2,140

2,200

2,320

2,500

2,630

2,500

2,440

2,380

2,560

2,910

3,060

2,980

2,980

3,210

3,450

3,210

2,840

2,770

2,840

2,910

2,770

2,500

2,200

July

2,030

2,140

2,140

2,030

2,080

2,080

1,970

1,920

1,970

2,030

2,140

2,140

2,140

2,080

2,140

2,140

2,140

2,200

2,320

2,320

2,320

2,380

2,380

2,380

2,320

2,380

2,440

2,440

2,380

2,440

Aug.

2,500

2,560

2,580

2,560

2,560

2,630

2,630

2,560

2,700

2,770

2,770

2,770

2,840

2,840

2,840

2,770

2,770

2,770

2,770

2,770

2,840

3,060

3,060

3,060

3,060

3,060

3,060

2,840

2,630

2,560

2,560

Sept.

2,500

2,500

2,560

2,500

2,560

2,500

2,500

2,500

2,260

2,140

2,140

1,970

1,370

1,280

1,280

1,550

1,600

1,600

1,600

1,600

1,550

1,550

1,810

1,810

1,860

1,370

918

835

786

Monthly discharge of Yakima River at Cle Elum, Wash., for the year ending September 80, 1925

[Drainage area, 500 square miles]

Month

October... 

November .. 

December. 

JanuaryFebruary- . 

March - 

April . 

May_._ 

June. . 

July . 

August . 

September- .

The year.

Observed discharge 

(second-feet)

Maximum

752

758

6,690

1,110

2,630

1,650

6,030

8,350

3,450

2,440

3,060

2,560

8,350

Minimum

298

310

400

562

835

902

1,240

2,630

2,140

1,920

2,500

786

298

Mean

443

450

1,780

759

1,330

1,200

2,920

4,790

2,650

2,200

2,770

1,820

1,930

Run-off (acre-feet)

Observed

27,300

26,700

109,000

46,600

73,600

73,700

174, 000

294, 000

158,000

135,000

170,000

108,000

1, 400, 000

Stored

+22,800

+35,200

+61, 800

+29,600

+38,800

+24,600

+65, 100

+73, 600

+23, 700

-64, 100

-144, 000

-88, 600

+78, 500

Without 

storage

50,100

61,900

171, 000

76, 200

112,000

98,300

239,000

368,000

182,000

70, 900

26,000

19,400

1, 470, 000

Discharge 

without storage 

(second-feet)

Mean

815

1,040

2,780

1,240

2,020

1,600

4,020

5,980

3,060

1,150

423

326

2,040

Per 

square 

mile

1.63

2.08

5.56

2.48

4.04

3.20

8.04

12.0

6.12

2.30

.846

.652

4.08

Runoff in 

inches

1.88

2.32

6.41

2.86

4.21

3.69

8.97

13.83

6.83

2.65

.98

.73

55.36
YAKIMA RIVER BASIN 137

KACHESS IAKE NEAR EAST02T, WASH.

LOCATION. In sec. 24, T. 21 N., E. 13 E. (unsurveyed), at lake outlet, 2^ miles 

northwest of Easton, Kittitas County.

DRAINAGE AREA. 63 square miles (measured on topographic maps).

RECORDS AVAILABLE. September 30, 1905, to September 30, 1925.

GAGE. Stevens water-stage recorder installed in gate tower November 25,1915, 

for use when gates are closed and staff gage (datum mean sea level); inspected 

by Fred Diener.

EXTREMES OF STORAGE. Maximum stage recorded during year, 2,260.60 feet 

on July 8 and 9 (storage, 232,660 acre-feet); minimum stage recorded, 

2,202.70 feet at 10.10 a. m. October 2 (storage, 27,550 acre-feet).

1906-1925: Maximum stage recorded, 2,261.14 feet at 4 p. m. July 21, 

1920 (storage, 235,090 acre-feet); minimum stage recorded, 2,197.73 feet 

September 26 and 27, 1915 (storage, 13,730 acre-feet).

STORAGE. Capacity of reservoir at crest of spillway, 221,000 acre-feet. Elevation of gate sill 2,192.75 feet and of spillway crest 2,258.00 feet. Eecord of 

storage or release each month used for determining discharge without storage 

at gaging station below dam.

ACCURACY. Water-stage recorder in gate tower not used during year. Staff 

gage read to hundredths twice daily. Eecords excellent.

COOPERATION. Complete record furnished by United States Bureau of Eeclamation.

Daily storage, in acre-feet, of Kachess Lake near Easton, Wash., for the year ending

September 30, 1925

Day

1. ....

2- ....

3. ....

4. ....

5- -

6 

7 

8 

9 

10 

11... ...

12 

13 

14 

15. _ ..

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 _

28 

29 

30 

31 

Oct.

27,940

27,660

27,740

27, 970

28,110

28,270

28,360

28,530

28,660

28,780

28,890

29,060

29,170

29,310

29,420

29,470

29,640

29,750

29,920

30, 030

30, 230

30, 400

30, 560

30, 810

31,260

31,600

31,930

32, 410

32,860

33,280 

33,750

Nov.

34,260

34,700

35,120

35,540

35,990

36,440

36,860

37,340

37,820

38,240

38,660

39,020

39, 360

39, 760

40,060

40,340

40, 570

40,820

41, 130

41,520

41, 950

42, 510

43, 070

43,520

43, 970

44,360

44,700

45,100

45,400

45, 660

Dec.

45, 910

46, 140

46,450

46,700

46, 930

47,240

47,440

47, 690

47, 830

48,280

49,890

53,280

56,560

59,460

62, 650

64,790

66, 050

67,100

67,940

Jan.

74, 050

74,590

75,020

75,450

75,940

76,400

76, 890

77,320

77,840

78, 360

78,940

79, 510

79, 970

80, 430

80, 890

81, 330

81,700

82, 130

82,620

68,570; 83,030

69, 050 83, 430

69,4301 83,840

69,8301 84,240

70, 230

70,600

70,950

71,290

71, 670

72, 300

72,900 

73,500 _.,_ -

84,620

84,990

85, 370

85,720

86, 090

86, 530

87, 110 

87. 920

Feb.

88,880

90,100

91, 770

93,600

95,440

96,950

97, 470

98,140

98, 870

99,400

99, 930

100, 380

100, 770

103,160

101,540

101,900

102, 140

102, 420

102, 740

103, 100

103, 490

103, 950

104, 370

104,900

105, 470

105, 970

106, 540

107, 040

Mar.

107, 400

107, 820

108, 360

108, 820

109,290

109, 720

110, 150

110, 500

Apr.

120, 670

121, 070

121,480

121, 990

122,550

123,290

124, 180

125, 180

110,830 126,540

111, 150

111, 480

111,800

112, 130

112, 420

112, 780

113, 280

113,680

113, 940

114, 300

114, 800

115, 170

115, 710

116, 220

116,840

117, 450

118, 000

118,440

118, 980

128, 360

130, 650

133,200

135, 620

137, 600

139, 200

140, 700

142, 120

143, 540

144, 780

145, 750

146, 680

147, 500

148, 350

148, 980

149, 560

150, 180

150, 730

151, 440

119,350 152,150

119,820 153,410 

120. 2fV)

1

May

154,440

155, 430

156, 580

157, 620

158, 860

360,700

163, 450

165,440

166,900

168,420

169, 810

171, 410

173, 190

175, 180

177, 550

180,180

182, 950

185, 350

187, 840

190, 350

192, 700

194, 580

196, 000

197, 200

198, 400

199, 520

200,640

202,240

203,800

204, 760 

205, 720

June

206,540

207, 370

208,150

208,890

209,550

210, 340

211, 170

211, 960

212, 790

213, 760

214, 500

215, 300

216, 180

217, 020

217, 900

218, 780

219, 890

220, 860

221,840

222, 770

223, 970

224,950

225, 800

226, 470

227,270

228, 170

229,020

229, 690

230, 230

230, 720

July

231, 130

231, 530

231, 850

231,980

232, 160

232,340

232,530

232, 660

232, 660

232, 610

232, 520

232, 250

231,980

231, 850

231,620

231, 310

231,080

230, 810

230, 450

230, 100

229, 650

229,290

228, 930

228, 660

228,300

227, 900

Aug.

224,240

223,080

221,930

220,600

219, 360

217,900

216, 310

214, 640

212, 700

210, 470

208,150

205,980

203, 720

201, 380

199, 180

196, 680

194,280

192, 010

189, 710

187, 510

185, 100

182, 020

179, 010

175, 840

172, 900

169, 850

227,540 166,780

227,140 163,650

226,740 IfiO. 340

226, 070 

225, 180

157, 260 

154,120

Sept.

150, 810

147, 770

144, 740

141, 660

138, 550

135, 310

132, 300

129,260

126,250

122, 990

119, 860

116, 690

115, 170

113, 570

112, 160

109,970

107, 790

105, 650

103, 590

101, 510

99,540

97,400

95,480

93,640

91, 740

89, 930

89,080

89,060

89, 110

89, 170
138 SURFACE WATER SUPPLY, 1925, PART XII A

KACHESS RIVER NEAR EASTON, WASH.

LOCATION. In sec. 3, T. 20 N., R. 13 E., three-fourths of a mile below Kachess 

storage dam, one-fourth of a mile above mouth, and 2 miles northwest of 

Easton, Kittitas County.

DRAINAGE AREA. 64 square miles (measured on topographic maps).

RECORDS AVAILABLE. November 20, 1903, to September 30, 1925.

GAGE. Stevens water-stage recorder at highway bridge; installed August 15, 

1916; inspected by Fred Diener.

DISCHARGE MEASUREMENTS. Made from cable one-fourth of a mile below Kachess 

storage dam or by wading.

CHANNEL AND CONTROL. Bed composed of light gravel and sand; shifting 

frequently. One channel at all stages. Control formed by broad riffle 125 

feet below gage.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 6.12 feet at 

1 a. m. September 12 (discharge, 1,660 second-feet). Practically no flow 

when gates in dam are closed.

1904-1925: Maximum discharge, 2,240 second-feet (computed from gate 

opening) August 27, 1920; practically no flow when gates in dam are closed.

ICE. Stage-discharge relation affected by ice at times; flow estimated from 

gage-height record, discharge measurements, observer's notes, and weather 

records.

DIVERSIONS. None.

REGULATION. Flow controlled by storage and release of water in Kachess Lake 

Reservoir. Monthly discharge without storage, determined from records of 

stage of reservoir.

ACCURACY. Stage-discharge relation changed September 8-12; not affected by 

ice. Rating curves fairly well defined. Water-stage recorder inspected 

daily except when gates are closed. Daily discharge ascertained by applying mean daily gage height to rating table. When gates are closed leakage 

estimated from knowledge of governing conditions. Records good.

COOPERATION. Complete records furnished by United States Bureau of Reclamation.

Discharge measurements of Kachess River near Easton, Wash., during the year ending

September 80, 1925

Date

Oct. 15........................

July 21.. ..................

Gage 

height

Feet 

1.43

3.41

Discharge

Sec.-ft. 

0.00

225

Date Gage 

height

Feet 

4.49

6.10

Discharge

Sec.-ft. 

639

1,590

Daily discharge, in second-feet, of Kachess River near Easton, Wash., for the year 

ending September 30, 1925

Day

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

2 _ .... ......

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

4... ._.........

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

6..- . ....

7.. -.. 

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

9 - 

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

Oct.

356

179

31

31

31

32

32

31

24

13

Nov.

1

1

1

1

1

1

1

1

1

1

Dec.

1

1

1

1

1

1

1

1

l

Jan.

1

1

1

1

1

1

Feb.

1

1

1

1

1

1

1

1

1

1

Mar.

1

1

1

1

1

1

1

1

1

Apr.

2

2

2

9

2

2

2

2

2

2

May

2

9

2

2

9

9

2

9

2

2

June

2

2

9

2

2

2

2

2

2

2

July

2

23

217

38

40

41

41

65

120

172

Aug.

557

589

608

622

710

802

824

918

1,100

1,150

Sept.

1,580

1,580

1,590

1,590

1,590

1,590

1,590

1,590

1,610

1,620
YAKIMA EIVER BASIN 139

Daily discharge, in second-feet, of Kachess River near Easton, Wash., for the year 

ending September 30, 1925 Continued

Day

11 _______

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

27 

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

29 

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

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

Oct.

9

2

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Nov.

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

Dec.

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

Jan.

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

Feb.

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

Mar.

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

Apr.

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

May

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

June

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

July

188

188

185

188

195

198

208

217

225

222

225

222

219

203

203

200

208

211

257

387

479

Aug.

1,170

1,170

1,170

1,170

1,170

1,180

1,180

1,190

1,200

1,210

1,400

1,520

1,540

1,550

1,550

1,560

1,560

1,560

1,550

1,560

1,560

Sept.

1,640

1,170

827

821

905

1,170

1,150

1,120

1,090

1,070

1,060

1,030

1,010

990

979

821

196

0

Monthly discharge of Kachess River near Easton, Wash., for the year ending September 30, 1925

[Drainage area, 64 square miles]

Month

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

Observed discharge 

(second-feet)

Maximum

356 

1 

1 

1 

1 

1 

2 

2 

2 

479 

1,560 

1,640

1,640

Minimum

0 

1 

1 

1 

1 

1 

2 

2 

2 

2 

557 

0

0

Mean

24.9 

1.0 

1.0 

1.0 

1.0 

1.0 

2.0 

2.0 

2.0 

180 

1,180 

1,100

209

Run-off (acre-feet)

Observed

1,530 

59.5 

61.5 

61.5 

55.5 

61.5 

119 

123 

119 

11, 100 

72, 600 

65, 400

151, 000

Stored

+5, 250 

+11, 900 

+27, 800 

+14, 400 

+19, 100 

+13, 200 

+33, 200 

+52, 300 

+25, 000 

-5, 540 

-71, 100 

-65, 000

+60,500

Without 

storage

6,780 

12,000 

27,900 

14,500 

19, 200 

13, 300 

33, 300 

52, 400 

25, 100 

5,560 

1,500 

400

212, 000

Discharge without storage 

(second-feet)

Mean

110 

202 

454 

236 

346 

216 

560 

852 

422 

90.4 

24.4 

6.72

293

Per 

square 

mile

1.72 

3.16 

7.09 

3.69 

5.41 

3.38 

8.75 

13.3 

6.59 

1.41 

.381 

.105

458

Run-off 

in 

inches

1.98 

3.53 

8.17 

4.25 

5.63 

3.90 

9.76 

15.33 

7.35 

1.63 

.44 

.12

62.09

C1E ELUM LAKE NEAR ROSLYN, WASH.

LOCATION. In sec. 10, T. 20 N., R. 14 E., at outlet of lake, 4 miles northwest 

of Roslyn, Kittitas County, and 7^ miles northwest of Cle Elum.

DKAINAGE AKEA. 202 square miles (measured on topographic maps).

RECOKDS AVAILABLE. May 4, 1906, to September 30, 1925.

GAGE. Stevens water-stage recorder; installed November 8, 1916; inspected 

by W. W. Wasson. Zero of gage at elevation of gate sills, 2,122.75 feet 

above sea level.

3223 29 10
140 SURFACE WATER SUPPLY, 1925, PART XII A

EXTREMES OF STORAGE. Maximum stage recorded during year, 14.86 feet at 

noon May 17 (storage, 32,480 acre-feet); minimum stage recorded, 3.24 feet 

at 6 a. m. September 5 (storage, 6,750 acre-feet).

1907-1925: Maximum stage recorded, 19.10 feet at 6 p. m. December 30, 

1917 (storage, 43,180 acre-feet); minimum stage estimated at 1.15 feet 

August 31, 1906 (storage, 2,380 acre-feet).

STORAGE. Capacity of reservoir at crest of spillway (gage height, 11.3 feet), 

24,100 acre-feet. Storage or release each month used for determining discharge without storage for gaging station below dam.

ACCURACY. Water-stage recorder referred to staff gage twice daily. Gage read 

to hundredths twice daily. Records excellent.

COOPERATION. Complete records furnished by United States Bureau of Reclamation.

Daily storage, in acre-feet, of Cle Elum Lake near Roslyn, Wash., for the year ending

September SO, 1925

Day

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

2 ___ . ........

3 

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

5 

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

7 .........

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

9 

10. 

11 

12 ___ . _ .....

13 

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

15 

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

17 ......... .

18 

19 

20 

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

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

23 

24..... ....

25...... _ . ....

26. ___ .......

27 

28. 

29.. ........

30

31 

Oct.

7,720 

8,370 

9,260 

9,870 

10, 320

10, 680 

10, 870 

10, 910 

10, 930 

11, 060

11, 000 

10, 850 

10,640 

10, 430 

10, 260

10, 240 

10, 150 

10, 040 

9,940 

9,850

9,750 

9,600 

9,410 

9,430 

10,040

11, 490 

12, 610 

13, 700 

14, 730 

15, 610 

16, 300

Nov.

16,940 

17, 550 

18,350 

19, 300 

20,290

20, 940 

21, 620 

22, 130 

22, 620 

22,960

23, 500 

23, 860 

24, 060 

24,170 

24, 260

24, 240 

24, 220 

24, 130 

24, 240 

24, 380

24,600 

24, 760 

24, 690 

24, 620 

24, 580

24,540 

24, 380 

24, 350 

24, 310 

24, 350

Dec.

24, 440 

24, 510 

24, 580 

24, 580 

24, 600

24, 600 

24, 580 

24, 560 

24, 580 

24, 850

26, 400 

30, 160 

31,150 

31, 510 

31, 050

29, 880 

28, 500 

27, 520 

28, 010 

26, 590

26,310 

26,040 

25,880 

25, 710 

25, 530

25, 440 

25, 370 

25, 440 

25, 490 

25, 440 

25,400

Jan.

25, 330 

25, 330 

25, 350 

25, 300 

25, 330

25, 350 

25, 280 

25, 280 

25, 140 

25, 140

25, 100 

25, 120 

25, 100 

25, 010 

24,940

24,900 

24,850 

24, 900 

25, 030 

25, 120

25, 100 

25, 210 

25, 100 

25, 080 

25, 030

24, 960 

25, 030 

25, 120 

25, 120 

25, 120 

25, 440

Feb.

25, 900 

26, 310 

26, 870 

27, 380 

27, 330

27,050 

26, 680 

26, 400 

26, 150 

25, 990

25, 780 

25, 650 

25, 530 

25, 440 

25, 400

25, 280 

25, 210 

25, 140 

25, 140 

25, 100

25, 120 

25, 140 

25, 170 

25, 260 

25, 300

25, 370 

25, 420 

25, 370

Mar.

25, 330 

25, 330 

25, 350 

25, 370 

25, 420

25, 400 

25, 370 

25, 350 

25, 300 

25, 260

25, 140 

25, C80 

25,060 

25, 030 

25, 030

25,060 

25, 060 

25,060 

25, 080 

25, 210

25, 300 

25, 550 

25, 760 

25, 900 

26, 130

26, 200 

28, 150 

26,040 

25, 940 

25, 810 

25, 740

Apr.

25,690 

25,690 

25, 740 

25, 900 

26,340

26, 820 

17, 330 

27, 800 

28,600 

29, 420

30, 240 

30, 740 

30, 670 

30, 020 

29, 350

29, 020 

28, 880 

28,690 

28, 270 

27, 820

27, 520 

27,290 

27, 100 

26, 980 

26, 820

26, 730 

26, 750 

26, 910 

27, 150 

27, 560

May

27, 960 

28, 120 

28, 120 

28, 050 

28, 270

29, 160 

30, 520 

20, 640 

29, 730 

29,210

29, 140 

29, 420 

29, 730 

30, 310 

31, 150

32,000 

32, 390 

32, 070 

31, 950 

32, 020

31,880 

31, 270 

30, 350 

29, 710 

29, 210

29,090 

29,210 

29,420 

29, 330 

28, 830 

28,290

June

27, 910 

27, 660 

27, 450 

27, 190 

27, 080

27,190 

27, 330 

27,500 

27, 750 

27,890

27, 800 

27, 590 

27, 660 

27, 660 

27, 660

28, 010 

28, 430 

28,600 

28, 550 

28, 480

28, 780 

29,040 

28, 740 

28, 310 

28, 200

28, 310 

28, 410 

28, 150 

27,840 

27, 520

July

27, 150 

26, 910 

26, 780 

26, 750 

26, 710

26,660 

26,540 

26, 430 

26, 310 

26,290

26, 290 

26,290 

26,220 

26, 080 

25,900

25, 670 

25, 370 

25, 060 

24, 600 

24, 080

23, 630 

23,070 

22,530 

22,000 

21,400

20, 860 

20, 240 

19, 670 

19, 110 

18, 500 

17, 760

Aug.

16, 920 

15, 950 

14, 860 

14, 060 

13, 340

12, 760 

12, 250 

11, 760 

11,400 

11, 000

10, 760 

10, 450 

10, 210 

9,960 

9,640

9,410 

9,220 

9,010 

8,820 

8,630

8,500 

8,420 

8,350 

8,310 

8,230

8,060 

7,910 

7,680 

7,590 

7,490 

7,360

Sept.

7,240 

7,150 

7,020 

6,900 

6,820

7,020 

7,380 

7,640 

7,990 

8,330

8,630 

8,900 

9,180 

9,540 

9,770

10,040 

10, 320 

10, 510 

10, 790 

10,980

11, 210 

11,400 

11, 550 

11,250 

10,850

10, 360 

10, 040 

9,640 

9,300 

9,010

CIE ELUM RIVER NEAR ROSIYK, WASH.

LOCATION. In sec. 10, T. 20 N., R. 14 E., below temporary crib dam at outlet of

Cle Elum Lake, 4 miles northwest of Roslyn, Kittitas County, and 7%

miles northwest of Cle Elum.

DRAINAGE AREA. 202 square miles (measured on topographic maps). 

RECORDS AVAILABLE. October 10, 1903, to September 30, 1925. 

GAGE. Stevens water-stage recorder on left bank 800 feet below temporary

crib dam; installed October 14, 1913; inspected by W. W. Wasson. 

DISCHARGE MEASUREMENTS. Made from cable about 350 feet below gage or by

wading. 

CHANNEL AND CONTROL. Bed composed of coarse gravel and boulders; shifting

at high water. One channel at all stages.
YAKIMA RIVER BASIN 141

EXTREMES OF DISCHARGE. Maximum stage recorded during year, from waterstage recorder, 7.60 feet at 7 a. m. May 17 (discharge, 5,370 second-feet); 

minimum discharge, 9 second-feet September 12, 13, and 15-18.

1904-1925: Maximum stage recorded, 14.05 feet at 2 p. m. November 15, 

1906 (discharge, 18,700 second-feet); minimum stage recorded, zero at 6 

p. m. September 28, 1914 (practically no flow).

ICE. Stage-discharge relation not seriously affected by ice.

DIVERSIONS. None.

REGULATION. Flow partly controlled by storage and release of water at Cle 

Elum Lake Reservoir. Monthly discharge without storage determined from 

records of stage at reservoir.

ACCURACY. Stage-discharge relation practical^ permanent. Rating curve 

fairly well defined. Operation of water-stage recorder satisfactory. Daily 

discharge ascertained by applying mean daily gage heights to rating table 

Records good.

COOPERATION. Complete records furnished by United States Bureau of 

Reclamation.

Discharge measurements of Cle Elum River near Roslyn, Wash., during the year 

ending September 30, 1925

Date

Oct. 23- 

Dec. 31 

Apr. 13 

Gage 

height

Feet 

1.67

2.37

6.33

Discharge

Sec.-ft. 

231

493

3,690

Date

May 28. .

June 26 .........

July 22.........

Gage 

height

Feet 

5.54

4.75

3.05

Discharge |

Sec.-ft. 

2,790 9 nfin i 835 j1

Date

Aug. 20- ___ .

Gage 

height

Feet 

2.82

1.82

.12

Discharge

Sec.-ft. 

711

277

9

0O

Daily discharge, in second-feet, of Cle Elum River near Roslyn, Wash., for the year 

ending September 30, 1925

Day

1. ....... .

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

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

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

6. . ..

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

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

Q

10 

11 

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

13 

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

15 

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

17 

18 

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

20 

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

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

23 .

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

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

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

27 

28 .........

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

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

31 

Oct.

122

138

162

191

211

214

228

234

239

242

236

275

312

305

282

275

272

266

248

242

242

234

228

239

214

245

245

245

245

239

Nov.

242

242

198

149

144

144

151

153

153

155

162

169

242

285

295

288

279

272

302

340

377

421

417

413

385

370

347

330

272

206

Dec.

222

242

245

251

257

248

242

236

236

295

971

3,320

4,150

4,540

4,150

3,200

2,300

1,280

1,050

923

807

699

637

559

512

503

531

544

512

494

Jan.

490

490

468

459

503

490

468

459

421

442

413

425

385

358

326

305

288

336

351

393

381

366

377

366

370

370

385

409

508

Feb.

699

864

1,180

1,500

1,460

1,320

1,110

984

836

752

652

592

544

503

477

451

425

409

393

qnq

393

409

4.11

463

485

508

490

Mar.

463

463

463

490

503

499

485

472

455

442

417

405

385

373

381

385

385

358

389

421

459

540

632

699

780

807

807

694

652

637

Apr.

597

597

607

694

836

1,110

1,390

1,650

2,120

2,780

3,310

3,660

3,660

3,310

2,780

2,490

2,490

2,350

2,070

1,780

1,580

1,420

1,350

1,280

1,180

1,140

1,140

1,250

1,350

1,620

May

1,860

1,990

1,940

1,940

2,070

2,580

3,660

3,780

2,990

2,680

2,580

2,780

3,100

3,540

4,280

4,950

5,230

5,090

4,950

4,950

4,810

4,280

3,540

2,990

2,680

2,580

2,680

2,780

2,780

2,390

2,120

June

1,860

1,690

1,540

1,390

1,320

1,390

1,460

1,540

1,690

1,820

1,730

1,620

1,650

1,650

1,620

1,860

2,160

2,300

2,210

2,210

2,390

2,580

2,350

2,120

2,030

2,120

2,120

2,030

1,780

1,580

July

1,390

1,250

1,180

1,140

1,140

1,110

1,050

984

923

923

923

923

894

836

836

836

836

807

836

807

807

836

864

836

836

836

836

807

807

836

Aug.

807

807

807

752

699

652

602

559

517

490

459

442

438

405

373

347

333

312

302

288

266

260

260

254

245

245

239

220

211

201

193

Sept.

188

214

222

211

QS

10

16

13

10

10

10

9

9

10

9

9

9

9

10

10

10

14

330

340

351

326

305

275

254
142 SURFACE WATER SUPPLY, 1925, PART XII A

Monthly discharge of Cle Elum River near Roslyn, Wash., for the year ending September 30, 1925

[Drainage area, 202 square miles]

Month

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

June ..

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

Observed discharge 

(second-feet)

Maximum

312 

421 

4,540 

508 

1,500 

807 

3,660 

5,230 

2,580 

1,390 

807 

351

5,230

Minimum

122 

144 

222 

288 

393 

358 

597 

1,860 

1,320 

807 

193 

9

9

Mean

235 

263 

1,160 

405 

684 

519 

1,790 

3,240 

1,860 

928 

419 

114

970

Run-off (acre-feet)

Observed

14,500 

15, 700 

71, 000 

24, 900 

38,000 

31, 900 

106, 000 

199, 000 

111, 000 

57,000 

25, 700 

6,780

702, 000

Stored

+8, 810 

+8, 050 

+1, 050 

+40 -70 

+370 

+1, 820 

+730 

-770 

-9, 760 

-10, 400 

+1, 650

+1, 520

Without 

storage

23,300 

23,800 

72, 000 

24,900 

37, 900 

32, 300 

108, 000 

200, 000 

110, 000 

47, 200 

15, 300 

8,430

703, 000

Discharge without storage 

(second-feet)

Mean

379 

400 

1,170 

405 

682 

525 

1,820 

3,250 

1,850 

768 

249 

142

971

Per 

square 

mile

1.88 

1.98 

5.79 

2.00 

3.38 

2.60 

9.01 

16.1 

9.16 

3.80 

1.23 

.703

4.81

Run-of 

in 

inches

2.17 

2.21 

6.68 

2.31 

3.52 

3.00 

10.05 

18.56 

10.22 

4.38 

1.42 

.78

65.30

NACHSS RIVER BELOW TEETOH RIVER, NEAR NACHES, WASH.

LOCATION. In sec. 35, T. 15 N., R. 16 E., 600 feet below Tieton River, 500 feet 

above intake of Wapatox Canal, and 5 miles northwest of Naches, Yakima, 

County.

DRAINAGE AREA. 942 square miles (revised; measured on topographic maps and 

Plate I, Water-Supply Paper 369).

RECORDS AVAILABLE. August 4 to October 28, 1905; March 16, 1909, to October 

31, 1912; May 10 to September 30, 1915; April 13, 1916, to September 30, 

1925.

GAGE. Stevens continuous water-stage recorder on left bank, installed December 

7, 1916; inspected by R. D. Powell.

DISCHARGE MEASUREMENTS. Made from cable at gage.

CHANNEL AND CONTROL. Bed of stream composed of small boulders and gravel; 

shifts at extremely high water. One channel except at extremely high stages.

EXTREMES OF DISCHARGE. Maximum stage during year, 7.85 feet at 8 a. m. 

May 21 (discharge, 8,000 second-feet); minimum stage, 1.58 feet at 7.3Q 

p. m. October 14 (discharge, 176 second-feet).

1905; 1909-1925: Maximum stage recorded, 8.9 feet at 8 a. m. November 

24, 1909 (discharge, 18,800 second-feet); minimum stage recorded, 1.10 feet 

from 7 a. m. September 23 to noon September 24, 1924 (discharge, 57 secondfeet).

ICE. Stage-discharge relation seriously affected by ice during severe winters. 

Flow estimated from gage-height record, discharge measurements, observer's 

notes, and weather records.

DIVERSIONS. Above all important diversions except Selah Valley and Tieton 

Canals.

REGULATION. Flow partly controlled by storage and release of water at Bumping Lake and at Tieton Reservoir. See record for Bumping Lake and Bumping River near Nile, Wash., Tieton River and reservoir at Tieton Dam, and 

for Tieton Canal near Naches, Wash.
YAKIMA RIVER BASIN 143

ACCURACY. Stage-discharge relation changed July 9-11; not affected by ice. 

Possibly slightly affected during periods of low stage by backwater from 

Taintor gates at intake of Wapatox Canal. Rating curve fairly well denned. 

Water-stage recorder inspected daily. Daily discharge ascertained by 

applying mean daily gage height to rating table. Shifting-control method 

used July 9-11. Records good.

COOPERATION. Maintained by United States Bureau of Reclamation in cooperation with Pacific Power & Light Co. United States Bureau of Reclamation 

furnished records for publication.

Discharge measurements of Naches River below Tieton River, near Naches, Wash., 

during the year ending September SO, 1925

Date

Oct. 28-..-....

Apr. 17 

Gage 

height

Feet 

2.65

5.60

3.92

Discharge

Sec.-ft.

714

4,080

1,860

Date

July 7 .-- 

July 30 .......

Gage

height

Feet 

4.62

3.83

3.49

Discharge

Sec.-ft. 

2,750

1,840

1,380

j Date

i

Gage 

height

Feet 

2.86

2.22

Discharge

Sec.-ft. 

805

384

Daily discharge, in second-feet, of Naches River below Tieton River, near Naches, 

Wash., for the year ending September 30, 1925

Day

1 ........

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

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

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

5... ... ... .

6 _ ....... _ .

7 ..

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

9 ...

10. .........

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

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

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

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

15 ..........

16. 

17

IS 

19 

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

21 

22.. ... .

23 

24 

25 

26 .

27 

28. 

29 . ........

30 

31 . ..

Oct.

259

276

293

297

293

289

289

297

302

311

306

302

302

280

368

368

348

358

368

358

377

368

358

358

418

574

678

712

691

671

671

Nov.

658

691

698

658

611

334

368

445

484

507

501

451

418

418

418

418

418

418

456

678

705

624

580

561

561

549

479

586

671

705

Dec.

726

726

691

698

664

644

624

586

531

592

1,100

2,150

3,770

2,920

2,280

1,350

1,260

1,260

1,260

1,160

1,550

1,650

1,980

2,100

1,980

1.590

1,210

1,450

1,090

Jan.

936

912

874

858

889

897

813

761

754

740

740

712

705

691

624

637

618

678

820

798

936

889

928

843

828

768

726

712

712

798

1,010

Feb.

1,020

1,760

2,210

2,340

1,980

1 7AA

1,450

1,350

1,210

1,120

1,070

1,020

961

Q9ft

897

866

843

843

835

843

881

936

904

912

874

828

Mar.

828

858

874

920

936

912

889

897

874

835

805

776

783

768

761

747

705

678

678

912

985

1,160

1,300

1,300

1,450

1,350

1,210

1,140

1,080

1,020

Apr.

1,020

1,070

1,160

1,300

1,550

2,040

2,590

3,260

3,840

4,460

4,780

4 ARf\

4,000

3,770

4,150

4 1 ,TA

3,700

3,260

2,850

2,590

3,070

3,200

2,100

1,980

1,760

1, 650

1,700

1,810

2,150

May

2,280

2,340

2,340

2,340

3,060

4,620

4,940

4,150

4,150

4,300

4,150

4,300

5,100

5,780

6,480

6,850

6,300

7,040

7,800

7,220

5,950

4,620

4,150

4,150

4,620

5,100

4,460

3,260

June

2,720

2,590

2,460

2,340

2,400

2,280

1,980

2,040

2,100

1,810

1,700

1,760

1,980

2,100

2,520

2,590

2,650

3,480

3,550

3,340

3,480

4,460

3,200

3,120

3,120

3,260

3,260

3,120

2,790

2,520

July

2,150

2,040

1,980

1,870

1,870

1,810

1,760

1,760

1,740

1,940

2,210

1,960

1,690

1,690

1,580

1,690

1,640

1,580

1,530

1,480

1,430

1,430

1,430

1,430

1,430

1,430

1,380

1,380

1,380

1,380

1,340

Aug.

1,340

1,240

1,240

1,130

1,120

1,050

1,060

1,030

964

1,020

1,020

923

899

829

829

740

740

733

711

747

813

829

844

821

657

579

537

480

447

427

416

Sept.

406

392

397

397

406

432

427

458

437

442

447

416

401

411

432

537

531

491

392

442

401

401

354

359

363

373

427

437

427

406
144 SURFACE WATER SUPPLY, 1925, PART XII A

Monthly discharge of Naches River below Tieton River, near Naches, Wash., for the 

year ending September SO, 1925

[Drainage area, 942 square miles]

Month

November. _. 

December _ 

January. __ 

February __

July.........

September.. 

The year

Discharge of river in 

second-feet

Maximum

712 

705 

3,770 

1,010 

2,340 

1,450 

4,780 

7,800 

4,460 

2,210 

1,340 

537

7,800

Minimum

259 

334 

531 

618 

828 

678 

1,020 

2,280 

1,700 

1,340 

416 

35-1

259

Mean

392 

536 

1,440 

794 

1,150 

951 

2,710 

4,760 

2,690 

1,660 

846 

421

Run-ofl in acre-feet

River, 

observed

24,100 

31, 900 

88, 600 

48, 800 

64,000 

58, 500 

161, 000 

293, 000 

160, 000 

102, 000 

52, 000 

25, 100

1,530 (1,110,000

Diversions

Selah 

Valley 

Canal

2,330

20 

1,810 

5,150 

6,950 

7,740 

8,160 

8,160 

6,950

47, 300

Tieton 

Canal

1,270

233 

504 

5,880 

18,600 

18,700 

19,800 

19, 400 

13, 300

97, 700

Storage, 

Bumping 

and Tieton Reservoirs

-+12, GOO 

"+20, 600 

-+17, 200 

"+12, 200 

-+21, 200 

"+11, 900 

"+21, 400 

+16, 300 

+4,000 

-49, 300 

-42, 600 

 22, 800

+22, 700

Without 

storage

39,000 

53,800 

106, 000 

61,000 

85,500 

72, 700 

193, 000 

335, 000 

190, 000 

80,700 

37,000 

22, 600

1, 280, 000

Discharge 

corrected for 

storage and 

diversion 

(second-feet)

Mean

634 

904 

1,720 

992 

1,540 

1,180 

3,240 

5,450 

3,190 

1,310 

602 

380

1,760

Mean 

per 

square 

mile

0.673 

.960 

1.83 

1.05 

1.63 

1.25 

3.44 

5.79 

3.39 

1.39 

.639 

.403

1.87

Runoff in inches

0.78 

1.07 

2.11 

1.21 

1.70 

1.44 

3.84 

6.68 

3.78 

1.60 

,74 

.45

25.40

a Partly estimated. Regulation in Tieton Reservoir began in September, 1924, but a record of reservoir 

contents was not kept until April, 1927. An accumulation of 84,100 acre-feet up to Apr. 30 has been divided 

equally over the months October, 1924, to April, 1925.

BUMPING LAKE NBAS NHE, WASH.

LOCATION. At storage dam in outlet 12 miles above American River and 19 miles

west of Nile, Yakima County.

DRAINAGE AREA. 68 square miles (measured on topographic maps). 

RECORDS AVAILABLE. April 27 to November 22, 1909; November 3, 1910, to

September 30, 1925. 

GAGE. Stages below elevation 3,399 feet obtained by measuring from reference

point to surface of water; a vertical staff on gate tower used for all stages

above elevation 3,399 feet; gages read by J. H. Nelson. Datum of gage set

at mean sea level. 

EXTREMES OF STORAGE. Maximum stage recorded during year, 3,430.55 feet

from 7.05 a. m. June 21 to 4.50 p. m. June 22 (storage, 39,840 acre-feet);

minimum stage recorded, 3,393.30 feet from 4.25 p. m. October 5 to 5.05 p. m.

October 14 and 7.50 a. m. October 19 to 7 a. m. October 24 (storage, 2,740

acre-feet).

1911-1925: Maximum stage recorded, that of June 21, 1925; minimum

stage recorded, 3,391.00 feet February 12-15, 1916 (storage, 1,260 acre-feet). 

STORAGE. Capacity of reservoir at crest of spillway, 33,700 acre-feet. Elevation

of gate sill, 3,389 feet, and of spillway crest, 3,426 feet. Storage or release

each month used for determining discharge with storage for gaging station

below dam.

ACCURACY. Gage read to hundredths twice daily. Records excellent. 

COOPERATION. Complete records furnished by United States Bureau of Reclamation.
YAKIMA RIVER BASIN 145

Daily storage, in acre-feet, of Bumping Lake near Nile, Wash., for the year ending

September 80, 1925 \

Day

1 

2... _ ......

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

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

5-.. .......

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

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

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

10

11-.------.-.. -

12..._ ..........

13.... .....

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

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

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

17..... ....

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

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

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

21......

22-......... .

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

24.........

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

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

27 .

28........

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

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

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

Oct.

2,850 

2,800 

2,800 

2,780 

2,750

2,740 

2,740 

2,740 

2,740 

2,740

2,740 

2,740 

2,740 

2,750 

2,790

2,800 

2,800 

2,770 

2,740 

2,740

2,740 

2,740 

2,740 

2,750 

2,920

3,090 

3,260 

3,340 

3,360 

3,360 

3,350

Nov.

3,370 

4,120 

4,730 

5,190 

5,510

5,800 

6,030 

6,210 

6,370 

6,560

6,770 

6,950 

7,140 

7, 350 

7,570

7,740 

7,940 

8,130 

8,530 

8,990

9,480 

10, 010 

10, 610 

11,070 

11,410

11,690 

11,810 

11,880 

11,920 

11, 930

Dec.

11, 930 

11, 930 

11, 930 

11, 930 

11, 930

11, 930 

11,890 

11, 840 

11, 810 

11, 810

12,010 

12, 960 

14, 390 

15, 790 

16,840

17, 710 

18, 030 

17, 850 

17, 570 

17, 320

17, 300 

17. 260 

17, 220 

17, 260 

17, 240

17, 1GO 

17, 180 

17, 170 

17,180 

17, 160 

17, 120

Jan.

17, 040 

16,940 

16,840 

16, 740 

16,580

16, 430 

16, 250 

16, 180 

16, 130 

16,080

16, 010 

16, 020 

16, 020 

15, 990 

15, 980

15, 980 

15,980 

15,990 

16,000 

16, 030

16,080 

16, 190 

16. 320 

16, 450 

16, 520

16, 560 

16, 560 

16.580 

16, 760 

17, 060 

17,350

Feb.

17,700 

18, 340 

19, 770 

21, 200 

22, 630

23, 400 

23, 950 

24, 440 

24,820 

25, 130

25,340 

25, 480 

25, 570 

25, 720 

25, 790

25, 870 

25, 930 

25, 990 

26,050 

26, 130

26, 250 

26, 370 

28, 460 

26, 510 

26, 520

26, 520 

26, 520 

26, 520

Mar.

26,520 

26, 520 

26,480 

26, 410 

26,390

26, 360 

26, 340 

26, 340 

26, 340 

26, 340

26, 340 

26,340 

26, 340 

26, 340 

26, 340

26, 340 

26, 320 

26,280 

26,280 

26,280

26,280 

26, 280 

26, 280 

26, 280 

26, 280

26, 320 

26, 340 

26, 340 

26, 360 

26, 400 

26, 460

Apri

26, 520 

26, 580 

26,630 

26, 630

26,500

26, 590 

26, 720 

26, 970

27, 170 

27, 57.0

28, 130 

28, 980 

29, 9!)0 

30,740 

31, 350

32, 080 

33, 010 

33, 730 

34,480 

34, 940

35, 280 

35, 540 

35,740 

35,790 

35,790

35,740 

35, 67*0 

35, 620 

35, 650 

35, 770

May

35,980 

36, 060 

36, 090 

36, 140 

36, 250

36,480 

36, 830 

36, 840 

36, 750 

36, 610

36, 560 

36, 610 

36, 710 

36,840 

37, 060

37, 330 

37, 470 

37, 490 

37, 490 

37, 540

37, 660 

37, 430 

37, 170 

37, 020 

36,950

36,900 

36,940 

36, 950 

36, 900 

36, 820 

36, 680

June

36, 520 

36,420 

36, 400 

36, 360 

36, 340

36,400 

36,750 

37,220 

37,900 

38, 620

38, 990 

39,150 

39. 200 

39,220 

39,260

39,420 

39,560 

39, 630 

39, 680 

39, 750

39, 820 

39, 820 

39,690 

39, 510 

39, 510

39, 550 

39, 550 

39, 450 

39,290 

39, 150

July

38,990 

38, 810 

38, 740 

38, 640 

38, 510

38,400 

38,190 

37,900 

37,480 

37,180

36, 940 

36, 570 

36, 200 

35, 790 

35, 350

34,900 

34, 430 

34,020 

33, 470 

32,880

32,290 

31, 740 

31, 160 

30, 590 

29,930

29, 390 

28,840 

28,290 

27,700 

27, 150 

26, 610

Aug.

26, 030 

25,440 

24,890 

24, 320 

23, 670

23,000 

22, 250 

21, 540 

20,860 

20,230

19,540 

18,990 

18, 370 

17, 800 

17, 110

16,460 

15,750 

15, 060 

14,410 

13,780

13,220 

12, 640 

11, 980 

11, 320 

10,790

10, 460 

10,230 

10, 180 

10, 170 

10,080 

10,000

Sept.

9,900 

9,740 

9,590 

9,390 

9,250

9,140 

9,090 

9,070 

9,040 

8,990

8,910 

8,790 

8,680 

8,560 

8,490

8,410 

8,340 

8,320 

8,290 

8,29C

8,290 

8,260 

8,190 

8,110 

8,040

7,960 

7,940 

7,910 

7,910 

7,910

BUMPING EIVEE NEAB HUE, WASH.

LOCATION. A quarter of a mile below spillway of Bumping Lake Dam, half a 

mile below outlet conduit through storage dam, 11^4 miles above American 

River, and 19 miles west of Nile, Yakima County.

DBAINAGE ABEA. 68 square miles (measured on topographic maps).

RECOBDS AVAILABLE. June 13 to July 31, 1906; Ajiril 27, 1909, to September 30, 

1925.

GAGE. Stevens water-stage recorder installed June 17, 1913; inspected daily by 

J. H. Nelson. ;

DISCHABGS MEASTJBEMENTS. Made from cable about 40 feet below gage or by 

wading. |

CHANNEL AND CONTROL. Bed composed of gravel and of large angular rocks; 

shifts at extremely high water. Riffle control 60 feet below gage. Stage of 

zero flow about gage height 0.4 foot. I

EXTBEMES OF DISCHARGE. Maximum stage recorded during year from waterstage recorder, 5.04 feet at 1.30 a. m. May 21 (discharge, 1,760 second-feet); 

minimum stage from recorder, 1.02 feet November 14-18 (discharge, 5 secondfeet) . |

1906; 1909-1925: Maximum stage recorded,|9.33 feet at 5 p. m. December 

29, 1917 (discharge, 5,180 second-feet); practically no flow when gates in 

outlet conduit are closed. !

ICE. Stage-discharge relation not affected by ice. |

DIVEBSIONS. None. :
146 SURFACE WATER SUPPLY, 1925, PART XII A

REGULATION. Flow partly controlled by storage and release of water at Bumping Lake Reservoir. Monthly discharge without storage determined from 

records of stage at reservoir.

ACCURACY. Stage-discharge relation practically permanent; not affected by ice. 

Rating curve fairly well defined. Water-stage recorder inspected daily. 

Daily discharge ascertained by applying mean daily gage height to rating 

table or, for a few days when range in stage was considerable, by averaging 

results obtained by applying mean gage heights for shorter intervals. 

Records good.

COOPERATION. Complete records furnished by United States Bureau of Reclamation.

Discharge measurements of Bumping River near Nile, Wash., during the year ending September SO, 1925

Date

June 3 ..........

Gage 

height

Feet 

3.45

3.35

Discharge

Sec.-ft. 

555

507

Date

July 30. ........

Aug. 17.........

Gage 

height

Feet 

3.11

3.13

Discharge

Sec.-ft. 

405

417

Date

Aug. 31. .....

Gage 

height

Feet 

1.92

Discharge

Sec.-ft. 

65.3

Daily discharge, in second-feet, of Bumping River near Nile, Wash., for the year 

ending September SO, 1925

Day

1.. _ . _ .....

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

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

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

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

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

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

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

10 

11 

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

13... ___ ......

14 ___ . _ ....

15... ____ ....

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

17 ___ ---......

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

19.. 

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

21 

22......... _ ..

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

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

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

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

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

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

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

30 ......

31 

Oct.

68

72

74

71

68

65

65

62

61

/S

58

58

58

62

71

72

71

68

65

64

62

61

60

65

92

120

146

155

155

155

148

Nov.

103

13

9

8

8

8

7

7

7

6

6

6

5

5

5

6

11

11

10

10

10

10

9

59

118

126

133

139

Dec.

139

137

133

100

133

133

133

133

137

144

365

410

396

333

272

261

174

137

254

200

191

258

264

272

Jan.

258

258

254

234

215

192

176

165

1 Kf

151

110

110

110

112

116

116

118

118

120

118

120

120

120

120

120

160

Feb.

122

126

129

131

129

129

129

129

129

129

129

129

129

129

129

129

129

129

129

129

103

131

142

142

142

142

Mar.

142

142

124

124

124

124

122

122

122

122

122

122

122

122

122

120

116

116

116

116

118

118

118

118

120

120

120

120

129

135

Apr.

139

153

160

163

165

176

198

282

349

379

387

392

401

405

405

357

336

332

332

328

340

349

336

332

328

324

336

370

May

424

477

487

487

720

1,020

1,020

883

799

779

841

912

1,060

1,210

1,440

1,600

1,560

1,560

1,640

1,720

1,480

1,250

1,100

1,020

1,020

1,020

1,100

1,060

898

766

June

675

651

597

524

513

370

275

278

286

305

424

502

568

556

562

688

806

890

905

984

1,170

1,130

984

862

869

926

905

806

675

591

July

529

492

457

452

443

438

433

433

428

428

428

424

424

424

424

419

424

419

419

419

419

414

419

414

419

414

414

414

414

414

Aug.

414

414

414

419

414

414

414

414

414

414

414

414

414

405

414

414

410

410

414

410

396

345

244

189

146

112

112

110

92

Sept.

92

112

112

112

112

112

99

94

94

94

94

92

92

76

71

71

71

71

71

70

70

70

70

70

70

70

70

70

57

39
YAKIMA RIVER BASIN 147

Monthly discharge of Bumping River near Nile, Wash., for the year ending September 30, 1925

[Drainage area, 68 square miles]

Month

March ___ __ __ __ .

May... .. _ .... ......

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

Observed discharge 

(second-feet)

Maximum

155 

139 

410 

261 

142 

142 

405 

1,720 

1,170 

529 

414 

112

1,720

Minimum

58 

5 

133 

110 

103 

116 

139 

424 

275 

414 

92 

39

5

Mean

81.6 

28.9 

238 

162 

130 

123 

304 

1,030 

676 

431 

350 

82.3

305

Run-off (acre-feet)

Observed

5,020 

1,720 

14, 700 

9, 950 

7,210 

7,560 

18, 100 

63, 200 

40, 200 

26, 500 

21, 500 

4,890

221, 000

Stored

+550 

+8, 580 

+5, 190 

+240 

+9, 160 -60 

+9. 310 

+910 

+2, 470 

-12,500 

-16, 600 

-2, 090

+5, 160

Without 

storage

5,570 

10, 300 

19, 900 

10, 200 

16,400 

7,500 

27,400 

64,100 

42, 700 

14, 000 

4,900 

2,800

226, 000

Discharge 

without storage 

(second-feet)

Mean

90.6 

173 

324 

166 

295 

122 

480 

1,040 

718 

228 

79.7 

47.1

312

Per 

square 

mile

1.33 

2.54 

4.76 

2.44 

4.34 

1.79 

6.76 

15.3 

10.6 

3.35 

1.17 

.693

4.59

Eunofi in 

inches

1.53 

2.83 

5.49 

2.81 

4.52 

2.06 

7.54 

17.64 

11.83 

3.86 

1.35 

.77

62.23

TIETOK RESERVOIR AT TIETON DAM, NEAR HACHES, WASH.

LOCATION. About 2,000 feet above mouth of Wild Cat Creek, 1% miles below 

junction of forks of river, 7% miles above headworks of Tieton Canal, and 

22^4 miles southwest of Naches, Yakima County.

DRAINAGE AREA. 187 square miles (measured on topographic maps).

RECORDS AVAILABLE. April 27 to September 30, 1925.

GAGE. Vertical and inclined staff in five sections on and near spillway weir, 

installed in 1925; stages below elevation 2,828 feet, determined from reference point by means of steel tape; read by C. L. Tice.

EXTREMES OF STOEAGE. Maximum stage recorded during period of record, 

2,881.21 feet from 4 p. m. June 26 to 8 a. m. June 28, 1925 (storage, 102,820 

acre-feet; minimum stage recorded, 2,812.39 feet at midnight September 30, 

1925.

STORAGE. Capacity of reservoir at crest of spillway, drums up, 198,000 acre-feet. 

Elevation of sill of tunnel entrance, 2,766 feet. Elevation of spillway crest, 

drums down, 2,918 feet, drums up, 2,926 feet. Records of storage or release 

each month used for determining discharge without storage at gaging station 

below dam.

ACCURACY. Gage read to half-tenths twice daily. Records good.

COOPERATION. Complete record furnished by United States Bureau of Reclamation.

Daily storage, in acre-feet, of Tieton Reservoir at Tieton Dam, near Naches, Wash., 

for the period April 27 to September 30, 1925

Day

I .. .-- - 

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

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

6. ......................... -

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

9....- . . ......

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

Apr. May

87, 350

88, 170

89, 190

89 970

92, 030

93, 320

June

100, 210

100, 180

99, 510

99, 440

100, 000

July

99, 930

99, 440

98, 920

98, 470

97, 910

97, 300

94. 390

Aug.

62,610

60,780

59,060

57,650

56,470

55,670

54,660

53,550

52, 520

51,410

Sept.

37, 860

37,480

36,980

36. 640

36, 210

35,710

35,140

34, 510

33,920

33,410
148 SURFACE WATER SUPPLY, 1925, PART XII A

Daily storage, in acre-feet, of Tieton Reservoir at Tieton Dam, near Naches, Wash., 

for the period April 27 to September 30, 1925 Continued

Day

11 

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

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

14. ___ . ______ ....... _ ...

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

16 .-......

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

18 

19 

20 

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

22. 

23 .. 

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

25 

26 

27 

28... .

29 ......

30 

31 .... .

Apr.

 -

81,410

84, 120

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

May

92, 990

92, 870

92, 830

93, 170

93,800

95, 210

96, 480

97, 960

99, 210

100, 480

101, 090

100, 830

100,040

100, 460

100, 950

101, 320

101, 320

99, 950

99, 550

June

100, 770

101, 660

102, 040

102, 200

102, 110

101, 970

102, 180

102, 150

101, 900

101, 620

102, 180

102, 150

102, 220

102, 240

102, 290

102, 540

102, 500

101, 710

July

92, 670

91, 060

89, 770

88, 660

87, 500

86. 090

84, 830

83. 380

81, 810

80, 370

78,800

77, 320

75, 770

74, 080

72, 690

71, 290

70, 150

68, 910

67, 230

65, 710

64, 280

Aug.

50, 190

49, 150

47, 940

47, 090

46, 550

46, 140

45, 780

45, 570

44, 920

44, 590

43,900

42, 660

41, 530

40,640

40, 280

40, 180

40, 010

39, 630

39, 230

38, 760

38, 290

Sept.

32, 670

31, 880

31, 240

30, 470

29,730

29,070

28,270

27,450

26, 630

25, 430

24, 650

23, 810

23, 130

22,540

21, 860

21,200

20, 180

19, 010

18, 170

17, 580

TIETOH RIVEB AT TIETON DAM, HEAB NACHES, WASH.«

LOCATION. At highway bridge at Bimrock site, 100 feet above Wild Cat Creek, 

2 miles below junction of forks of river, 7 miles above headworks of Tieton 

Canal, and 22 miles southwest of Naches, Yakima County.

DRAINAGE AREA. 187 square miles (measured on topographic maps).

RECORDS AVAILABLE. August 28 to November 24, 1908; March 21, 1909, to 

September 30, 1914 (fragmentary); October 1, 1918, to March 31, 1919; 

April 27 to September 30, 1925.

GAGE. Friez water-stage recorder on left bank at highway bridge installed 

September 5, 1925; inspected by C. L. Tice. April 27 to August 11, 1925, 

a vertical staff on left abutment of highway bridge; August 12 to September 

4, 1925, gage heights determined from reference point on stilling well.

DISCHARGE MEASUREMENTS. Made from highway bridge at gage, by wading, or 

from cable one-half mile below Wild Cat Creek.

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

permanent.

EXTREMES OF DISCHARGE. Maximum stage recorded during period April 27 to 

September 30, 1925, 5.55 feet from 11.00 a. m. May 28 to 11.00 a. m. May 30 

(discharge, 2,390 second-feet); minimum stage recorded, 2.20 feet on April 

27 (discharge, 123 second-feet).

1908; 1909-1914; 1918-19; 1925: Maximum stage recorded, 6.2 feet at 3.30 

p. m. November 23, 1909 (discharge, 4,200 second-feet); minimum discharge 

occurred April 27, 1925. Bureau of Reclamation reports stage of 7.5 feet 

from 10.30 p. m. December 18 to 1.30 a. m. December 19, 1917 (discharge, 

8,400 second-feet).

ICE. Stage-discharge relation affected by ice during severe winters. Flow 

estimated from observer's notes, discharge measurements, and weather 

records.

DIVEKSIONS. None.

9 Previously known as Tieton River at McAllisters Meadows and Tieton River at Eimrock, Wash.
YAKIMA RIVER BASIN 149

EEGULATION. Flow regulated by storage and release of water at Tieton Reservoir 

about 2,000 feet above gage. Monthly discharge without storage determined 

from records of stage at reservoir.

ACCURACY. Stage-discharge relation changed May 21-30. Not affected by ice. 

Rating curves fairly well defined. Gage read to hundredths once daily 

prior to May 28; twice daily thereafter. Daily discharge ascertained by 

applying mean daily gage height to rating table. Shifting-control method 

used May 21-30. Records fair.

COOPERATION. Complete record furnished by United States Bureau of Reclamation.

Discharge measurements of Tieton River at Tieton Dam, near Naches, Wash., during 

the year ending September 30, 1925

Date

Apr. 22.........

Apr. 25 

May 15. __ - _

Gage 

height

Feet 

5.40

2.20

3.48

4.43

Discharge

Sec.-ft. 

2,070

124

513

1,140

Date

JulyS. 

July 16... _.

Gage 

height

Feet 

4.08

3.29

4.55

Discharge

Sec.-ft. 

952

479

1,130

1,360

Date

July 31... .

Aug. 21 

Gage 

height

Feet 

4.34

3.70

3.45

Discharge

Sec.-ft. 

1,220

763

551

Daily discharge, in second-feet, of Tieton River at Tieton Dam, near Naches, Wash., 

for the period April 27 to September SO, 1925

Day

1.. ......

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

3 

5 - _ 

7.... _ ...

8 

9.. __ ..

10,.. _ ..

11 

12...... _ ..

13 

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

15 

Apr. May

235

208

232

255

255

2,180

1,160

158

158

1,160

1,160

1,160

1,160

1,160

1,160

June

772

772

772

878

992

915

841

841

526

424

424

828

1,200

1,200

July

1,110

1,200

1,110

1,110

1,110

1,110

1,110

1,110

1,320

1,560

1,710

1,560

1,420

1,320

1,320

Aug.

1,280

1,150

1,110

992

969

915

915

871

863

915

834

740

722

680

663

Sept.

576

576

576

576

576

576

576

576

576

576

540

530

530

576

Day

16.. _ ..

18... _ ....

19.....

20 

21 

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

23..... _ ...

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

25 

26 

27 

28 

29 

30.... ..

31 

Apr.

--

123

146

200

235

May

1,160

1,160

1,160

1,160

2,250

2,280

2,280

1,200

1,220

1,230

1,240

1,820

2,390

1,750

992

June

780

984

1,420

1,420

1,070

1,330

1,760

1,240

1,240

1,320

1,420

1,460

1,420

1,320

1,200

July

1,370

1,370

1,320

1,320

1,320

1,320

1,320

1,320

1,320

1,320

1,320

1,320

1,320

1,320

1,320

1,320

Aug.

626

626

626

626

669

709

709

709

636

576

576

576

576

576

576

576

Sept

652

652

572

508

508

508

482

424

424

424

424

424

424

420

404

Monthly discharge of Tieton River at Tieton Dam, near Naches, Wash., for the 

period April 27 to September 30, 1925

[Drainage area, 187 square miles]

Month

April 27-30 _______

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

The period

Observed discharge 

(second-feet)

Maximum

235 

2,390 

1,760 

1,710 

1,280 

652

1

Minimum

123 

158 

424 

1,110 

576 

404

Mean

176 

1,170 

1,050 

1,300 

761 

525

" ""I " "

Run-off (acre-feet)

Observed

1,400 

71, 900 

62,300 

80, 100 

46,800 

31,300

294,000

Stored

+3,600 

+15, 400 

+1,510 

-36, 800 

-26,000 

-20,700

-63,000

Without 

storage

5,000 

87,300 

63,800 

43, 300 

20,800 

10,600

231,000

Discharge without storage 

(second-feet)

Mean

630 

1,420 

1,070 

704 

338 

178

Per 

square 

mile

3.37 

7.59 

5.72 

3.76 

1.81 

.952

Runoff in 

inches

0.50 

8.75 

6.38 

4.34 

2.09 

1.06
SURFACE WATER SUPPLY, 1925, PART XII A

TIETON BIVEE AT HEADWGBXS OF TISTON CANAL, HEAR HACHES, WASH.

LOCATION. In sec. 30, T. 14 X., R. 15 E. (unsurveyed), below intake of Tieton

Canal, 15 miles above mouth, and 16 miles southwest of Naches, Yakima

County.

DRAINAGE AREA. 240 square miles (measured on topographic maps). 

RECORDS AVAILABLE. April 17 to September 17, 1906 (fragmentary gage height

record); July 5, 1907, to September 30, 1925. 

GAGE. Stevens continuous water-stage recorder on right bank 1,000 feet below

intake of Tieton Canal; inspected by Willis Taylor. 

DISCHARGE MEASUREMENTS. Made from cable about 500 feet below gage or by

CHANNEL AND CONTROL. Bed composed of gravel and boulders; shifts slightly 

at high water; gradient steep. One channel at all stages.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, from waterstage recorder, 5.58 feet on December 24 (discharge, 2,480 second-feet); 

minimum stage from recorder, 1.81 feet on November 6 (discharge, 15 secondfeet).

1907-1925: Maximum stage recorded, from water-stage recorder, 8.15 feet 

at 1.20 a. m. December 13, 1921 (discharge, 6,150 second-feet); minimum 

stage, 1.29 feet at 5.20 p. m. August 2, 1924 (practically no flow).

ICE. Stage-discharge relation affected by ice during severe winters.

DIVERSIONS. Tietoa Canal has diverted water above gage since 1910. Diversions through canal added to mean monthly discharge to determine monthly 

flow past gage.

REGULATION. Flow regulated by storage and release of water at Tieton Reservoir about 7 miles above gage.

ACCURACY. Stage-discharge relation practically permanent; not affected by ice. 

Rating curve fairly well denned. Operation of water-stage recorder satisfactory except as noted in footnote to table of daily discharge. Daily discharge ascertained by applying mean daily gage heights to rating table. 

Records good.

COOPERATION. Complete record furnished by United States Bureau of Reclamation.

Discharge measurements of Tieton River at headworks of Tieton Canal near Naches, 

Wash., during the year ending September 30, 1925

Date

Oct. 27.. .......

Apr. 19 __ . _

Gage 

height

Feet 

2.98

2.77

cSSe ! Date

!|

ii 

Sec.-fl. II 

253 I July 8---..-..-.

Gage 

height

Feet 

3.89

4.07

Discharge

Sec.-ft.

859

408

Date

Sept. 9.. .......

i

Gage 

height

Feet 

3.17

Discharge

Sec.-ft. 

330

Daily discharge, in second-feet, of Tieton River at headworks of Tieton Canal near 

Naches, Wash., for the year ending September 80, 1925

Day

1 -__.--_---_-

2

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

6 .... 

T... ... ........

8. , 

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

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

Oct.

194

197

211

218

214

218

214

218

218

221

Nov.

221

236

240

271

116

15

139

221

221

221

Dec.

259

248

240

248

251

248

207

24S

Jan.

221

218

221

221

236

214

214

Feb.

S2C

300

263

204

181

Mar.

142

181

1 C1

175

Apr.

197

187

197

214

240

263

288

348

May

58

48

59

878

1,330

119

CQO

936

June

516

522

598

710

682

623

568

284

July

785

793

769

809

809

785

825

1.060

Aug.

809

703

696

642

616

568

616

Sept.

313

309

309

313

317

322

330

334

330

348
YAKIMA RIVER BASIN 151

Daily discharge, in second-feet, of Tieton River at headworks of Tieton Canal near 

Naches, Wash., for the year ending September 30, 1925 Continued

Day

11 

12 

13 

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

16 

17 

18 

19 

20 

21 

22 

23 ...... 

24 

25 - 

26 

27 

28 

29.. . _ ......

30 

31 

Oct.

221

221

218

172

248

240

240

240

236

225

229

229

225

229

229

232

240

240

229

221

221

Nov.

214

214

218

221

225

225

225

240

275

267

240

211

207

214

211

201

197

204

259

259

Dec.

343

334

357

309

275

259

259

259

259

339

477

927

1,670

2,480

893

868

842

214

229

218

221

Jan.

214

214

218

221

221

221

221

280

275

267

255

236

221

229

207

194

207

207

214

214

134

Feb.

168

159

159

159

159

159

159

159

165

184

194

201

194

194

156

148

150

Mar.

168

181

184

207

211

184

184

156

218

207

248

244

263

183

204

197

201

197

Apr.

371

309

255

248

or,o

259

211

187

162

224

1,230

1,050

170

ZA

34

42

102

109

May

936 9 S 2

978

986

986

1,230

1, 190

1,230

986

1,610

2,120

2,180

1,580

995

961

978

986

1,370

1,840

1,580

736

June

184

225

236

531

859

676

1,220

1,170

811

846

1,630

616

809

952

1,030

1,070

1,080

1,060

961

July

1,360

1,120

936

927

893

978

961

910

910

902

902

893

884

893

893

884

884

884

893

884

884

Aug.

598

510

488

424

394

339

334

330

326

384

424

419

414

361

322

317

317

317

317

322

322

Sept.

366

334

343

352

444

477

482

414

343

352

380

352

304

317

326

339

343

339

326

317

NOTE. Water-stage recorder not operating Dec. 18 to Feb. 4. Discharge determined from two daily 

staff gage readings.

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

for the year ending September 30, 1925

[Drainage area, 240 square miles]

Month

November.. ....

May... 

July... .

September ... 

The yearObserved discharge of 

river in second-feet

Maximum

248 

275 

2,480 

280 

366 

263 

1,230 

2,180 

1,630 

1,360 

876 

482

2,480

Minimum

-194 

15 

207 

134 

148 

101 

34 

48 

184 

769 

317 

304

15

Mean

223 

214 

465 

221 

201 

188 

270 

1,000 

739 

899 

482 

349

440

Discharge 

corrected for 

storage and 

diversion 

(second-feet)

Mean

473

1,550 

1,080 

623 

374 

225

599

Per 

square 

mile

1.97

6.46 

4.50 

2.60 

1.56 

.938

2.50

Run-ofi

Inches

15.53

7.45 

5.02 

3.00 

1.80 

1.05

33.85

Acre-feet

Observed

13,700 

12, 700 

28, 600 

13,600 

11, 200 

11,500 

16, 100 

61, 600 

43,900 

55,300 

29, 600 

20,800

319,000

Stored

1 

j°+84, 100

+15, 400 

+1, 510 

-36, 800 

-26,000 

-20, 700

+17, 500

Diverted

1,270

230 

500 

5,880 

18,600 

18,700 

19,800 

19,400 

13,300

97,700

Without 

storage 

or diversion

199,000

95,600 

64,100 

38,300 

23,000 

13,400

433, 000

0 Storage accumulation from some time in September, 1924, when regulation above Tieton Dam began, 

to Apr. 30, 1925. Records of reservoir stage were not kept prior to April 27.

TIETOW CANAL WEAR NACHES, WASH.

LOCATION. In sec. 30, T. 14 N., R. 15 E. (unsurveyed), below canal intake

and 16 miles southwest of Naches, Yakima County. 

RECORDS AVAILABLE. Irrigation seasons 1910 to September 30, 1925. 

GAGE. Float gage installed in a stilling well about 500 feet below canal intake;

read by Willis Taylor. 

DISCHARGE MEASUREMENTS. Made from gaging bridge 30 feet below gage or

by wading. 

CHANNEL AND CONTROL. Earth section merging into concrete-lined section

1,000 feet below gage.
152 SURFACE WATER SUPPLY, 1925, PART XII A

EXTREMES OF DISCHARGE. Maximum discharge during year, 324 second-feet 

from June 22 to July 1; no flow October 1 to November 19, November 29 

to February 25, and March 8 to April 1.

1910-1925: Maximum stage recorded, 5.53 feet for few hours September 

9, 1921 (discharge, 344 second-feet); no flow when head gates are closed.

ACCURACY. Stage-discharge relation changed during winter and gradually 

July 20 to September 30. Rating curves fairly well denned. Gage read 

to hundredths twice daily. Daily discharge ascertained by applying mean 

daily gage height to rating table. Records good.

COOPERATION. Complete record furnished by United States Bureau of Reclamation.

Canal diverts water from right bank of Tieton River in sec. 30, T. 14 N., 

R. 15 E.; water is used for irrigation.

Discharge measurements of Tieton Canal near Naches, Wash., during the year 

ending September SO, 1925

Date

Apr. 13 

Apr. 17- 

Apr. 24 ... ... ...

Gage 

height

Feet 

1.80

2.62

3.16

5.14

Discharge

Sec.-ft. 

56.6

120

165

309

Date

July 7- 

Gage 

height

Feet 

5.16

5.21

5.40

5.39

Discharge

Sec.-ft. 

298

299

327

320

Date

Aug. 24 _____

Sept. 14.

Sept. 24-.. 

Gage 

height

Feet 

5.48

4.46

3.13

Discharge

Sec.-ft. 

315

317

234

146

Daily discharge, in second-feet, of Tieton Canal near Naches, Wash., for the year 

ending September 30, 1925

Day

I. 

2-. 

3 

4-. ... ... ..... ..... ...

6 ..... ...

T. ..........................

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

9-. ... ... ... ....

10-- .

11 _.... -... ..........

12 __ 

13 

14- 

15-- 

16-- 

17-- 

18-- 

19-- 

20-- 

21- 

"iZ.. .........................

^&. ..........................

1^.. .........................

^&. ..........................

26 - _ 

27 ...

28-- 

29 __ 

30- . 

31--... . . ...

Nov.

........

55

69

84

82

78

78

78

78

38

Feb.

........

........

39

on

39

Mar.

39

39

39

39

39

39

20

Apr.

17

19

19

19

19

33

40

40

52

57

57

67

88

110

118

118

118

118

118

122

128

153

163

167

176

189

200

210

233

May

260

276

290

296

298

304

305

305

305

307

307

307

307

308

305

306

307

307

307

307

305

307

306

307

ofl7

OAK

307

307

307

306

307

June

306

307

307

306

307

305

306

305

307

307

308

310

311

310

310

310

310

315

317

320

323

324

324

324

V)A.

324

324

324

324

324

July

324

321

323

323

323

322

323

323

323

323

323

323

323

323

323

323

323

323

323

322

322

321

321

321

320

320

320

320

320

320

Aug.

319

319

318

318

318

318

317

317

316

316

315

315

316

315

314

314

314

314

315

316

315

315

314

314

316

316

315

314

314

314

313

Sept.

312

314

317

318

316

315

306

299

294

273

266

253

245

235

239

238

230

225

204

182

175

156

145

138

121

118

119

120

121

100

NOTE. Canal dry during periods for which no discharge is given.
MISCELLANEOUS DISCHARGE MEASUREMENTS 153

Monthly discharge of Tieton Canal near Naches, Wash., for the year ending September 30, 1925

Month

July.... . . 

Discharge in second-feet

Maximum

84 

39 

39 

233 

308 

324 

324 

319 

318

Minimum

0 

0 

0 

0 

260 

305 

319 

313 

100

Mean

21.3 

4.2 

8.2 

98.9 

303 

314 

322 

316 

223

Run-off in 

'acre-feet

1,270 

233 

504

5,880 

18,600 

18,700 

19,800 

19,400 

13,300

MISCELLANEOUS DISCHARGE MEASUREMENTS

In addition to the records of stream flow obtained at gaging stations 

and reported in the preceding pages, measurements of flow were made 

at a number of other points as shown by the following tables:

Miscellaneous discharge measurements in drainage basins in Washington during 

the year ending September 30, 1925

Chehalis River Basin

Date

13

26

"Vf Q-TT 99

July 24

Aug. 12

28 

Sept. 11

Stream

Creek. 0

 . .do."......... ...

 do.". .

..-.do....... . ...

-.-..do.'... ... . 

.....do.*.. .............

Tributary to or 

diverting from 

.. do.. ......

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

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

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

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

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

.. do....-.. ......

Locality

NE. % sec. 12, T. 17 N., R.

5 W. Willamette meridian, near Porter, Wash. 

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

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

NW. y± sec. 1, T. 21 N., R.

8 W. Willamette meridian, 

near Montesano, Wash. 

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

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

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

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

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

Gage 

height

Feet

1 7Q

1.24

.80

.57

.53 

.42

Discharge

Sec.-ft. 

10.4

7.94

7.26

430

249

164

115

113 

98.6

Quinault River Basin

Sept. 23

Quinault Lake, Wash.

0.98 426

Queets River Basin

30

water, Wash.

Clearwater, Wash.

0.62

1.08

568

105

Hoh River Basin

Aug. 18

Aug. 17

20

19

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

 .do... . ...

River.

 do. .

 do... .... .

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

__ do .-. ._ . 

Spruce, Wash.

Spruce, Wash.

1.88

1.06

.22

900

1,900

869

93.8

247

« Results furnished by R. H. Ober of the firm of Jacobs & Ober, consulting engineers, Seattle, Wash. 

* Results furnished by S. C. Watkins, superintendent of water, Aberdeen, Wash.
154 SURFACE WATER SUPPLY, 1925, PART XII A

Miscellaneous discharge measurements in drainage basins in Washington during 

the year ending September SO, 1925 Continued

Quillayute River Basin

Date

Nov. 17

Apr. 14

July 13

Aug. 27

Stream

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

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

...-do.... .............

-. do..- ..-.......

Tributary to or 

diverting from 

do..... .....

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

 do.. ..

 --do.... .........

Locality

Fairholm, Wash. 

..... do... .......... ...-.--

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

..-.do... ...............

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

Gage 

height

Feet 

2.59

1.92

3.93

1.61

.60

Discharge

Sec.-ft, 

898

536

540

399

120

Morse Creek Basin

Aug. 25

near Port Angeles, Wash.

39.9

Quilcene River Basin

near Quilcene, Wash.

55.5

Duckabush River Basin

24 do................. do...... ... .

way crossing near Duckabush, Wash.

Highway crossing at 

Duckabush, Wash.

134

99.9

Hamma Hamma River Basin

Aug. 14

24

River « 

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

crossing at Eldon, Wash.

crossing at Eldon, Wash.

90.7

78.4

Lilliwaup Creek Basin

Sept. 26

22

26

22

26

- do .. .... ..

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

 do ..........

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

- do.... ........

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

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

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

Wash.

Wash. 

..... do... ..

Wash, 

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

0.75

.82

.81

.82

.81

5.61

5.56

8.88

9.64

Puyallup River Basin

Sept. 15 SE. M sec. 23, T. 19 N., R.

6 E. Willamette meridian, 

near Pittsburg, Wash.

20.2

Lake Washington Basin

Feb. 26 Sammamish River <*. 

Woodinville and Redmond, Wash.

625

« Results furnished by R. H. Ober, of the firm of Jacobs & Ober, consulting engineers, Seattle, Wash. 

«Results furnished by engineers with city of Tacoma's Cushman power project. 

< Results furnished by Thomas R. Beeman, county engineer, King County, Wash.
MISCELLANEOUS DISCHARGE MEASUREMENTS 155

Miscellaneous discharge measurements in drainage basins in Washington during 

the year ending September 30, 1925 Continued

Snohomish River Basin

Date

Dee. 17

18

19

20

May 27

Aug. 14

Stream

Everett water supply 

conduit.

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

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

 do 

.....do. .._ 

.....do...... --..._ -

 - do........... ...

Tributary to or 

diverting from 

Eight s'de of Sultan 

Eiver.

 do 

 - do... ... ... ... ..

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

 do 

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

 do 

Locality

Mouth of tunnel at gate 

tender's house near Sultan, 

Wash. 

 do . 

 do 

 do 

.... .do ... 

 do 

.. do 

Gage 

height

Feet 

1.86

1.72

 2.41

 2.25

1.56

1.56

1.35

Discharge

Sec.-ft. 

18.6

18.4

16.6

16.2

16.8

17.8

17.3

Kootenai River Basin

Mar. 12 Skin Creek _ ... . Three-fourths mile above 

mouth at EJeen, Idaho.

8.3

Clark Fork Basin

May 26 

Sept. 14 do ... do .... .....

Highway crossing at Metaline Falls, Wash. 

 do 

744 

96.2

Okanogan River Basin

Aug. 31

May 6 

8

23

July 8

West Okanogan Valley Irrigation District Canal/ 

Whitestone Reclamation District Canal. 

 do 

 do 

.....do . -

Left side of Similkameen River.

Eight side of Toats 

Coulee Creek. 

 ..do 

 do 

 do 

Three-fourths mile below 

intake near Nighthawk, 

Wash. 

Intake near Loomis, Wash..

 do 

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

 .do 

2.42

1.08 

1.00

.47

.40

164

55.4 

42.8

22.8

5.4

Methow River Basin

July 3 

Aug. 26

July 3

Aug. 26

July 3

Aug. 26

East Methow Valley 

Irrigation District 

Canal, 

 do. . .

Irrigation District 

Canal. 

 ..do ... .... .

.... .do .

Left side of Methow 

Eiver.

. do. 

River. 

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

 do 

 do ...

1,200 feet above highway 

bridge at Twisp, Wash.

 do 

Twisp, Wash. 

 do 

Twisp, Wash. 

 do ..-. _ ..-.-. -.

5.60 

5.51

4.70

4.41

61.3 

57.4

37.2

36.7

16.3

10.1

Wentachee River Basin

8

& Light Co.'s canal.

Canal.

River.

Sound Power & 

Light Co.'s canal.

er plant at Dryden, Wash.

den, Wash.

612

186

Yakima River Basin

Oct. 23

11

North Fork of Ahtanum Creek. »

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

Tampico, Wash.

Dry Creek, near Toppenish, Wash. 

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

1.72

1.45

1.78

12.4

9.6

51.2

 Backwater due to ice in conduit.

/ Furnished by engineers of Washington Water Power Co., Spokane, Wash.

 Results furnished by U. S. Office of Indian Affairs.

3223 29 11
INDEX

A Page

Aberdeen, Wash., cooperation by_.._ _. 10 

Accuracy of data and results, degrees of... 4-5 

Acre-foot, definition of__--. 2 

Ahtanum Greet, North Fort of, Wash., discharge measurement of.. 155 

Alder, Wash., Little Nisqually River near... 31-32 

Alderton, Wash., Puyallup River at......... 36-37

Appropriations, record of___.... 1

B

Baker River below Anderson Creek, near

Concrete, Wash._______... 68-69 

Beaver, Wash., Soleduck River near...... 12-14

Big Creek near Poison, Mont.... 90-92

Big Fork, Mont., Swan River near..... . 88-90

Brinnon, Wash., Dosewallips River at...... 21-23

Buckley, Wash., White River at... 40-42 

Bumping Lake near Nile, Wash .. 144-145 

Bumping River near Nile, Wash. _____ 145-147

Calder, Idaho, St. Joe River at .. 107-108 

Cataldo, Idaho, Coeur d'Alene River near. 98-100 

Cedar Falls, Wash., Cedar River at. ____ 42-44 

Cedar River at Cedar Falls, Wash...__... 42-44 

near Landsberg, Wash__ ... 44-45 

Chehalis River Basin, Wash., gaging-station

records in_____ ___ ___ 11-12 

Chelan, Wash., Lake Chelan at............. 126

Chelan Electric Co., cooperation by____ 10 

Chelan River at Chelan, Wash............ 127-129

Chelan River Basin, Wash., gaging-station

records in_ __________ 126-129 

Clark Fork at Metaline Falls, Wash____ 79-80 

near Plains, Mont_____________ 76-78 

Clark Fork Basin, Mont., gaging-station

records in_____-...._.. 76-94

Cle Elum, Wash., Yakima River at.__.. 135-136 

Cle Elum Lake near Roslyn, Wash..___ 139-140 

Cle Elum River near Roslyn, Wash___. 140-142 

Clearwater River, Wash., discharge measurement of ...__..-----..----... 153

Coeur d'Alene Lake at Coeur d'Alene,

Idaho............... ...... 100-101

Coeur d'Alene River near Cataldo, Idaho.. 98-100 

Columbia Falls, Mont., South Fork of Flathead River near _________ 87-88 

Columbia River at Kettle Falls, Wash.__. 71-73 

at Trail, British Columbia. _______ 69-71 

at Vernita, Wash.......... ... 73-75

Colville River at Meyers Falls, Wash_...__. 94-95

Computations, results of, accuracy of_.. 4-5

Concrete, Wash., Baker River near_____ 68-69

Skagit River near.------------- 62-64

Page

Control, definition of _____________ 2 

Coolin, Idaho, Priest River near_______ 92-94 

Cooperation, record of...__..._. _.. 10

D

Darrington, Wash., Sauk River at_____ 66-67 

Data, accuracy of_ 4-5 

explanation of . . . . 3-4 

Deer Creek at Oso, Wash___________ 56-S& 

Dominion Water Power and Reclamation 

Service of Canada, cooperation 

by.___ ..-. __..._ 1ft 

Dosewallips River at Brinnon, Wash..__. 21-23 

Duckabush River, Wash., discharge measurements of..-.-___-.______ 154 

Dungeness River near Sequim, Wash___.. 19-20*

E

East Methow Valley Irrigation District 

Canal, Wash., discharge measurements of.__.__________ 155- 

Easton, Wash., Kachess Lake near.....__. 137

Kachess River near_._..._ ... 138-139 

Electron, Wash., Puyallup River near___ 34-36 

Elwha River at McDonald Bridge, near Port

Angeles, Calif... . 17-18. 

Entiat River at Entiat, Wash............. 129-131

Everett, Wash., cooperation by.__ .. 10 

Everett water supply conduit, Wash., discharge measurements of._.... 155

Flathead Lake at Poison, Mont __.__. 85 

at Somers, Mont ...__..._ .. 84

Flathead River near Poison, Mont. _____ 85-87 

South Fork of, near Columbia Falls,

Mont................... ..... 87-88

G

Great Northern Railroad Co., cooperation by. 10 

Greater Wenatchee Irrigation District, cooperation by._____-__.__. 10-

Hall Creek at Inchelium, Wash............. 95-97

Hamma Hamma River, Wash., discharge

measurements of_....__.... 154 

Hayden Lake at Hayden Lake, Idaho___ 111 

Hoh River, Wash., discharge measurements

of.... . 153- 

South Fork of, discharge measurements

of... __.__......... 153

Hoodsport, Wash., North Fork of Skokomish

River near.... . ... 23-2&

167
158 INDEX

Page

Hope, Idaho, Pend Oreille Lake at_____ 78-79 

Hugh L. Cooper Co., cooperation by.___ 10

Idaho, cooperation by..._____..____ 10 

Inchelium, Wash., Hall Creek at______ 95-97 

Index, Wash., South Fork of Skykomish

River near_____________ 46-47 

Inter-County River Improvement Commission of King and Pierce Counties, 

cooperation by._________ 10 

Interurban Land Co., cooperation by.___ 10

Kachess Lake near E aston, Wash ... ___ _ 137 

Kachess River near Easton, Wash_____ 138-139 

Keechelus Lake near Martin, Wash.___ 132-133 

Keeler, J. L., cooperation by.________ 10 

Kettle Falls, Wash., Columbia River at__ 71-73 

King County, Wash., cooperation by.___ 10 

Kootenai River at Libby, Mont.._____. 75-76

La Grande, Wash., Nisqually River near__ 29-30 

Tacoma power conduit near______. 32-34 

Lake Chelanat Chelan, Wash________ 126 

Lake Crescent at Piedmont, Wash..____ 14-15 

Lake Washington Basin, Wash., gaging-station records in___________ 42-45 

Lamb, W. A., and assistants, work of.__ 11 

Landsberg, Wash., Cedar River near__ _ 44-45 

Leavenworth, Wash.,Wenatchee River near.131-132 

Libby, Mont., Kootenai River at______ 75-76 

Lilliwaup Creek, Wash., discharge measurements of._____________ 154 

Little Nisqually River near Alder, Wash.... 31-32

Long Lake, Wash., Spokane River near.. 105-106

Loomis, Wash., Sinlahekin Creek near__ 119-121

Toats Coulee Creek near________ 121-122

Lotus, Idaho, St. Maries River at_...... 109-110

Lyre River at Piedmont, Wash______.. 15-17 

Lyre River Basin, Wash., gaging-station

records in____. ________ 14-17

M

Marblemount, Wash., Skagit River near._ 58-61

Thunder Creek near.___________ 64-66

Martin, Wash., Keechelus Lake near___ 132-133

Yakima River near_ __ ___ __ 133-135

Metaline Falls, Wash., Clark Fork at....... 79-SO

Meteor, Wash., Stranger Creek at______ 97-98 

Methow-Okanogan Irrigation District, cooperation by.....________ 10

Methow River at T wisp, Wash........... 124-125

Meyers Falls, Wash., ColvUle River at.__ 94-95 

Montana, cooperation by___________ 10 

Montesano, Wash., Wynoochee River near.. 11-12 

Morse Creek, Wash., discharge measurement

of .. . . . .- 154

Mount Tom Creek, Wash., discharge measurement of-...__. ... 153

N

Naches River below Tieton River, near

Naches, Wash___.__...... 142-144

s, Wash., Tieton Canal near...__ 151-153

Page

Naches, Wash., Tieton Reservoir near__ 147-148

Tieton River near______.__._ 148-151

Nespelem Canal at Nespelem, Wash...... 114-115

Nespelem River at Nespelem, Wash__ 113-114 

Nile, Wash., Bumping Lake near_____ 144-145 

Bumping River near.._________ 145-147 

Nisqually River near La Grande, Wash. __ 29-30 

Nisqually River Basin, Wash., gaging-station

records in_____________ 29-34 

North Bend, Wash., North Fork of Snoqualmie River near..________ 53-54 

South Fork of Snoqualmie River at__. 55-56 

Northwestern Power & Manufacturing Co.,

cooperation by __..-.._.. 10

O

Okanogan River at Okanogan, Wash_... 116-117 

Okanogan River Basin, Wash., gaging-station

records in________.___ 116-124 

Olney Creek near Startup, Wash....._._ 47-48 

Oroville, Wash., Similkameen River near.. 118-119 

West Okanogan Valley Irrigation District Canal near.._______ 123-124 

Oso, Wash., Deer Creek at._________ 56-58

Parker, G. L., and assistants, work of-----_ 10

Pend Oreille Lake at Hope, Idaho..--------- 78-79

Piedmont, Wash., Lake Crescent at_____ 14-15 

Lyre River at.....________ 15-17

Pierce County, Wash., cooperation by___ 10 

Plains, Mont., Clark Fork near...___ 76-78 

Poison, Mont., Big Creek near..___ 90-92 

Flathead Lake at____________ 85 

Flathead River near.__________ 85-87 

Port Angeles, Calif., Elwha River near__.. 17-18 

Porter Creek, South Fork of, Wash., discharge measurements of .. 153 

Post Falls, Idaho, Spokane River at___ 101-103 

Spokane1 Valley Farms Co.'s canal at._ 111-113 

Potlatch, Wash., South Fork of Skokomish

River near.____________ 27-28 

Priest River at outlet of Priest Lake, near .

Coolin, Idaho_.-_. . 92-94

Publications, information concerning,.___ 5-9

obtaining or consulting of_____.___--_-. 6-7

on stream flow, lists of...___. .-.. 7,9 

Puget Sound Basins, Wash., gaging-station

records in___._-...____ 21-69 

Puget Sound Power & Light Co., cooperation

by......... __-.....---. - 10

Puget Sound Power & Light Co.'s canal,

Wash., discharge measurement of 155 

Puyallup River at Alderton, Wash......--.. 36-37

at Puyallup, Wash................ ... 38-39

near Electron, Wash____________ 34-36 

Puyallup River Basin, Wash., gaging-station

records in________.. 34-42

Q

Queets River, Wash., discharge measurement of_________ .. 153

Quigley, Mont., Ranch Creek near._ 82-84 

Rock Creek near...-.-.---._. ... 81-82

Quilcene River, Wash., discharge measurement of__-.___.... 154
INDEX 159

Page

Quillayute River Basin, Wash., gagingstation records in.--------___ 12-14

Quinault River, Wash., discharge measurement of-______________ 153

R

.Ranch Creek near Quigley, Mont-.-.___ 82-84 

Risley ditch, Wash., discharge measurements

of....,. ....................... 155

Rock Creek near Quigley, Mont............. 81-82

Soslyn, Wash., Cle Elum Lake near.---.. 139-140 

CleElum River near..... 140-142

Run-ofE in inches, definition of-_...__.... 2

St. Joe River at Calder, Idaho..______ 107-108 

St. Maries River at Lotus, Idaho.-........ 109-110

Sammamish River, Wash., discharge measurements of__---___--__. 154 

Satus Creek, Wash., discharge measurements

of . ._ 155

Sauk River at Darriugton, Wash______ 66-67 

Seattle, Wash., cooperation by-..._____ 10 

Second-feet, definition of.___---...__._ 2 

Second-feet per square mile, definition of-... 2 

Sequim, Wash., Dungeness River near._.. 19-20 

<Similkarueen River near Oroville, Wash_ 118-119 

Sinlahekin Creek above Blue Lake, near

Loomis, Wash....----......--. 119-121

Skagit County, Wash., cooperation by..._ 10 

Skagit River below Ruby Creek, near Marblemount, Wash......._--..-.. 58-59

near Concrete, Wash.....__..._..... 62-64

near Marblemount, Wash________ 60-«1 

Skagit River Basin, Wash., gaging-station

records in________ __. _ 58-69 

Skin Creek, Idaho, discharge measurement of 155 

Skokomish River, North Fork of, below Staircase Rapids, near Hoodsport, 

Wash.. - . 23-25

near Hoodsport, Wash............... 25-26

South Fork of, near Potlatch, Wash.,... 27-28 

Skokomish River Basin, Wash., gagingstation records in----...-_-.... 23-28

Skykomish River, South Fork of, near Index,

Wash.... 46^17

Snohomish River Basin, Wash., gagingstation records in.___-----_ 46-56

 Snoqualmie River, Middle Fork of, near

North Bend, Wash.............. 51-52

North Fork of, near North Bend, Wash. 53-54 

South Fork of, at North Bend, Wash.... 55-56

Soleduck River at Snider ranger station, near

Beaver, Wash................... 12-14

discharge measurements of___-_..... 154

Somers, Mont., Flathead Lake at..___.. 84 

iSound Power Co., cooperation by.._..._ 10 

South Prairie Creek, Wash., discharge measurement of..,__._..______... 154

Spokane River at Post Falls, Idaho... .. 101-103 

at Spokane, Wash______.______ 103-104

below Little Falls, near Long Lake,

Wash.-....... ............. 105-106

 Spokane River Basin, Idaho-Wash., gagingstation records in. _ __... 98-113

Spokane Valley Farms Co., cooperation by.. 10 

Spokane Valley Farms Co.'s canal at Post

Falls, Idaho. 111-113

Stage-discharge relation, definition of ------ 2

Startup, Wash., Olney Creek near.._.____ 47-48

Stevens County Power & Light Co., cooperation by--.-...._--.-._-.--.-- 10

Stilaquamish River Basin, Wash., gagingstation record in___.-...__ 56-58 

Stone-Webster Engineering Corporation,

cooperation by.--.- .._.. 10 

Stranger Creek at Meteor, Wash............ 97-98

Sullivan Creek, Wash., discharge measurements of___.____-----_ 155

Sultan River near Sultan, Wash_______ 49-50 

Swan River near Big Fork, Mont.... ...

T

Tacoma, Wash., cooperation by. _ _.. _. 10 

Tacoma power conduit near La Grande,

Wash...... . - - 32-34

Taylor, Paul, and assistants, work of.___ 11 

Terms, definition of...__..______.. 2-3 

Thunder Creek near Marblemount, Wash... 64-66 

Tieton Canal near Naches, Wash_....... 151-153

Tieton Reservoir at Tieton Dam, near

Naches, Wash................. 147-148

Tieton River at headworks of Tieton Canal,

near Naches, Wash______ 150-151 

at Tieton Dam, near Naches, Wash... 148-149 

Toats Coulee Creek near Loomis, Wash... 121-122 

Trail, British Columbia, Columbia River at. 69-71 

Troxell, H. C., work of____________ 11 

Twisp, Wash., Methow River at.-..---- 124-125

U

U. S. Bureau of Reclamation, cooperation by. 10 

U. S. Forest Service, cooperation by 10 

U.S. Office of Indian Affairs, cooperation by. 10 

V. S. Weather Bureau, cooperation by... 10 

Upper Columbia River Basin, British Columbia-Wash.-Mont.-Idaho, gaging-station records in... .- . 69-153

V 

Vernita, Wash., Columbia River at...._.. 73-75

W

Washington, cooperation by ... 10

Washington Coast Utilities Co., cooperation

by. - 10

Washington Irrigation & Development Co.,

cooperation by.----- .-.. 10

Washington Water Power Co., cooperation

by... 10

Wenatchee River near Leavenworth, Wash. 131-132

Wenatchee Valley Canal, Wash., discharge

measurement of....__..- 155

West Methow Valley Irrigation District 

Canal, Wash., discharge measurements of_--------_--------- 155

West Okanogan Valley Irrigation District,

cooperation by----.. . 10
160 INDEX

Page

West Okanogan Valley Irrigation District 

Canal, Wash., discharge measurement of____._________ 155 

near Oroville, Wash__________ 123-124 

White Kiver at Bucklay, Wash.............. 40-42

Whitestone Irrigation District, cooperation by 10 

Whitestone Reclamation District Canal, 

Wash., discharge measurements 

of.... .... .-..-.....-...... 155

Work, authorization of....___....__.... 1

division of_____..._________.. 10-11 

scope of__.. ._..---.-.-...- .-.. 1-2

Page

Wynoochee River, Wash., discharge measurements of.______.--.....- 153 

near Montesano, Wash..--------- ~ 11-12

Yakima River at Cle Elum, Wash...... 135-136

near Martin, Wash 133-135

Yakima River Basin, Wash., gaging-station

records in-...------- - 132-153

Zero flow, point of, definition ofo