Please do not destroy or throw away this publication. If you have no farther us e 

for it, write to the Geological Survey at Washington and ask for a frank to retarn it.

DEPARTMENT OF THE INTERIOR 

HUBERT WORK, Secretary

UNITED STATES GEOLOGICAL SURVEY

GEORGE OTIS SMITH, Director

WATER-SUPPLY PAPER 525

SURFACE WATER SUPPLY OF THE 

UNITED STATES

1921

PART V. HUDSON BAY AND UPPER MISSISSIPPI 

EIVER BASINS

NATHAN C. GROVER, Chief Hydraulic Engineer

\V. A. LAMB, S. B. SOULE, H. E. GROSBACH 

and E. D. BURCHARD, District Engineers

Prepared In cooperation with the States of 

MINNESOTA, WISCONSIN, IOWA, and ILLINOIS

WASHINGTON

GOVERNMENT PRINTING OFFICE 

1924
DEPARTMENT OF THE INTERIOR 

Hi BERT WORK, Secretary

UNITED STATES GEOLOGICAL SURVEY

GEORGE OTIS SMITH, Director

Water-Supply Paper 525

SURFACE WATER SUPPLY OF THE 

UNITED STATES

1921

PART V. HUDSON BAY AND UPPEE MISSISSIPPI 

BIVEB BASINS

NATHAN a

W. A. LAMB, 8. B. SOULfi, B. E. GROSBACH 

and E. D. BURCHARD, District Engineers

Prepared in cooperation with tho States of 

MINNESOTA, WISCONSIN, IOWA, and ILLINOIS

WASHINGTON

OOTBBNJ^ENT PBINTING OFFICE 

1924
ADDITIONAL COPIES

OF THIS PUBLICATION IIAT BE PROCURED FROM

THE SUPERINTENDENT OT DOCUMENTS

GOVERNMENT PRINTING OFFICK

WASHINGTON, D, C.

AT 

20 CENTS PEK COPY
CONTENTS.

Page. 

Authorization*and scope of work____________________________________ 1

Definition of terms_____________._________________________________ 2

Explanation of data__________________________________________ __ 3

Accuracy of field data and computed results_______________________ 4

Publications___________.______ __________________________________ 5

Cooperation. ___ ____________________________.____ 9

Division of work----------.....--.---...--..-..-............*....... 0

*Gaging-station records______________________________________

Hudson Bay drainage basin. __________________________,______

St. Mary River near Babb, Mont_______________.__________

St. Mary River near Kimball, Alberta_____________________

St. Mary canal at intake, near Babb, Mont_________________

St. Mary canal at St. Mary crossing, near Babb, Mont_______

St. Mary canal at Hudson Bay divide, near Browning, Mont___ 

Swiftcurrent Creek at Many Glacier, Mont_____________

Swiftcurrent Creek at Sherburne, Mont____________________

Canyon Creek near Many Glacier, Mont_____________________

Red River at Fargo, N. Dak_______-____-_--_______________

Red River at Grand Forks, N. Dak_______________-___--!__

Bois des Sioux River near Tenney, Minn_____....'________

Mustinka River above Wheaton, Minn______________________

Red Lake River at Thief River Fails, Minn_____ ________ _____

Red Lake River at Crookston, Minn________________________

Thief River near Thief River Falls, Minn__________---_-___

Pembina River at Neche, N. Dak_,_________________________

Roseau River at Caribou, Minn____^_______________________

Mouse River at Minot, N. Dak.____________________________

Upper Mississippi River drainage basin __________ _ _ _ _ _"_"_ _______

Mississpipi River at Elk River, Minn________________________

Mississippi River at St. Paul, Minn_________________ ___ _

Minnesota River near Montevideo, Minn____._____ _>______

Minnesota River near Mankato, Minn_____________________ 

St. Croi'x River at Swiss, Wis______________________-_--____-

St. Croix River near'St. Croix Falls, Wis_____________ _ 

Namakagon River at Trego, Wis_______________________ __

Apple River near Somerset, Wis____________ ____________

Kinnikinnic River near River Falls, Wis_____________________

Chippewa River at Bishop's Bridge, near Winter, Wis_________

Chippewa River near Bruce, Wis_____________-.___._ ______

Chippewa River at Chippewa Falls, Wis_ _________________ _ _ 62

, Flambeau River near Butternut, Wis_______________-_--___ 64

Flambeau River near Lady smith, Wis _____________,-- ^6

Jump River at Sheldon, Wis___________ ________-.____-,-_- 68

Eau Claire River near Augusta, Wis_,________---_- r --------- 70

Red Cedar River near Colfax, Wis_'I_____'________"_'l____ 72

tin
IV CONTENTS.

Gaging-station records Continued.

Upper Mississippi River drainage basin Continued. Page.

Red Cedar River at Cedar Falls, Wis ___--__--------_-__- 74

Red Cedar River at Menomonie, Wis--________-_-___-_-____- 75

Black River at Neillsville, Wis-__---^--_------_------------ 77

La Crosse River near West Salem, Wis_____________--_--.-__ 79

Upper Iowa River near Decorah, Iowa-__-_---_-----__--__-._ 81

Wisconsin River at Whirlpool Rapids, near Rhinelander, Wis___ 83

, Wisconsin River at Merrill, Wis______--_-___---_______-___- 85

t Wisconsin River at Knowlton, Wis_ _________________________ 87

Wisconsin River near Nekoosa, Wis_________________________ 88

Wisconsin River at Muscoda, Wis__________________________ 90

Tomahawk River near Bradley, Wis-_-__-___----__-__------ 92

,, . Prairie River near Merrill, Wis_____-_--_-__-_-___ _______ 94

( , Eau Claire River at KeUy, Wis__________________ 96

Big Eau Pleine River near Stratford, Wis ____________________ 98

, v Baraboo River near Baraboo, Wis-___-______-_--__-__ T __-_- 100

Kickapoo River at Gays Mil}s, Wis________________,_.__-_-_ 101

Turkey River at Garber, Iowa-_--__-----_______.-______-___ 103

Maquoketa River below North Fork of Maquoketa River, near

Maquoketa, Iowa______________________________________ 105

Rock River at Afton, Wis_________________-___,__ 107

Rock River at Lyndon, !!!_______________________________ 109

Pecatonica River at Freeport, Ill______-____________________ 111

Sugar River near Brodhead, Wis______________'_________. __ 113

Iowa River at Marshalltown, Iowa_____-_-____-_-__________ 115

Iowa River at Iowa City, Iowa__________-___"___-___,_______ 117

Iowa River at Wapello, Jowa---.-------------!-------!-,,.-- 118

Cedar River at Janesville, Iowa__-__-____---_---___-_--_-__ 120

Cedar River at Cedar Rapids, Iowa___-_- --------------__ 122

Shellrock River near Clarksville, Iowa___.______ ___________ 124

Skunk River near Ames, Iowa_____T _____^___--__-_______ 126

Skunk River at Coppock, Iowa_________. _.________________ 128

Skunk River at Augusta, Iowa____-_______,.____-___--_-____ 130

( .' Squaw Creek at Ames, Iowa-_-_^-_--_-__---_----_-__--____ 132

. , Des Moines River at Kalo, Iowa____--___-___--______-_____ 133

Des Moines River near Boone, Iowa _ _,_________'________.___ 135

Des Moines River near Tracy, Iowa __-__-__ --_-____--_-_- 137

Des Moines River at Ottumwa, Iowa___-___--___-___-__-___- 138

Des Moines River at Keosauqua, iowa----_--\,---_-_-_--____ 142

u Raccoon River at Van Meter, Iowa,__________---_________ 149

Illinois River at Morris, Ill_____--__-_^__---_-___-______-___ 151

Illinois River at Peoria, Ill________I_^__-__-__i_I____X-- --- 152

Illinois River at Beardstown, 111_______!____________________ 154

Kankakee River at Momence, Ill_____l_________,___,__:_____ 155

Kankakee River at Custer Park, IU ___',_.____ _: 1 _._': _ _ _ _ _ _ _._'___ 157

Des Plaines River at Lemont, tU-_____---____--__^---_--l-- 159

;';'' Des Plaines River at Joliet, IU_________--__4_,^-_____^-;_^__ 160

Fox River at Algonquin, Ill__-_--_____-J---_ -----__---^l__ 162

Pox River at Wedron, III_ r _,___1___:_^__^_.l___:_!_ r __ 163

Vermilion River near Streator, Iil_____-,,____-_____ 7 _ ^____ 165

Mackinaw River near Green Valley, 111. _ __ _ _ _11 _ _ 1 _ _ _ ___i__ _ 166

'.'. Spoon River at Seville, IlL_.,_______-___.....!;__.-- 168

Sangamon River at Monticello, 111_________L_____ 1 ____-___-_ 169
CONTENTS. , V

Gaging-station records Continued.

Upper Mississippi River drainage basin Continued. Page.

Sangamon River at Riverton, 111..__________________________ 172

Sangamon River near Oakford, Ill__.______________________ 174

South Fork of Sangamon River at power plant near Taylorville,

111. ___________________________________________________ 175

Crooked Creek at Ripley, IU__________________________^__u_ 177

Macoupin Creek near Kane, Ill___.______________'_________._ 178

Kaskaskia River at Vandalia, 111.___________________________ 180

Kaskaskia River at New Athens, I1L_______________________,. 182

Big Muddy River at Plumfield, IU______._._________ 183

Big Muddy River at Murphysboro, Ill______________________ 185

Miscellaneous discharge measurements______________________________ 187

Index. ________________________________________ 189

ILLUSTRATIONS.

Page. 

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

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

printing; C, Friez__.___________________._>__ 3
SUEIACE WATER SUPPLY OF HUDSON BAY AND 

UPPIB MISSISSIPPI RIVER BASINS, 1921.

AUTHORIZATION AND SCOPE OF WORK.

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

measurements of flow made on streams in the United States during 

the year ending September 30,1921.

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 office* (jbfee Director] shall have the direction of the Geological Survey and the classification of public lands.and examination of the geological 

structure, mineral refBourceSj^and products of the national domain.

The work was begun in 1888 in connection with special studies 

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

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

carried the following item and appropriations: . - ;

For gaging the streams and determining the water supply of the 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 80,1895-1928,

1895______:______________________ $12; 500. 00 

1896____________-_____________..- 20, 000. 00 

1897 to 1900, inclusive_________________.. 60,000.00 

1901to 1962, inclusive____.____-.......___ 100,000. 00

1903 to 1906, inclusive..____________-___ 200, 000. 00 

1907__________________________.__ 150,000.00 

1908 to 1910, inclusive__________________ 100, 000. 00 

1911 to 1917, inclusive____________L_____ 150, 000. 00 

1918__^________^,_________r ~-'_.____ 175,000.00 

1919__.._. ____.:_.,_______...._____..... 148,244.10

1920_____________________________ 175,000.00

1921__________________ 180, ooa oo

1922___________-__..___________.____ 180, 000. 00

In the execution of the work many private and State organizations 

have cooperated either by furnishing data or by assisting in collecting 

data. Acknowledgments for cooperation of the first kind are made 

in connection with the description of each,,station affected; cooperation of the second kind is acknowledged on page 9.r

1
2 SUBFAOE WATEE SUPPLY, 1981, PAST V.

Measurements of stream flow have been made at about 5,200 points 

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

Hawaiian Islands. In July, 1921, 1,350 gaging stations were being 

maintained by the Survey and the cooperating organizations. Many 

iiiiec^llanoous discharge kie^urem^nis^aM'iriideL^ ortfcei1 podniaJ fe 

connneotion witli this ftojfc f^]^^^\i^i^t^^fti^\j^^^ ^>o precipitation, evaporation, storage reservoirs, river profiles, and water 

power in many sections of the country and will be made available in 

water-supj^y papers ^rom ijmerto$me. ,

volume of water fi'owirig in a si^eato^he 

charge" is expressed in various terms'; "eiSh of ! wnksh 

»^6$itod with a 'certain cttiss of ttotk."' iiiese terms ittaybe divided 

iHtb *two grdu^^tlftitoB^ltHat refpreseiifc fttate^ offio^ as sec^nfl^ 

feet, gallons per minute, miner's inches, and discharge in second-feet 

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

Wfiter,"m rtm-off in ia«hes; 'acre^feet, a&d milMons of ctiblc feet. Ifee 

principal terms uso.d in t'his series of reports are sedond-feet, secidhdfeet per square mil«, and rumoff in incites and *ore-fset. Tfaer liiay 

be deftined as follows: ' -W ?*n-« >'. - 1- < a^irii - *:^-.;^^'

V Second-feet" iig MI ftt>br»vitetaon fdr?^euMe ieet> 'per second^" *''A 

second-foot is the rate of discharge of w*tet flowing in a channel of 

rectangular cross section, .1 f pot wide and 1 foot deep at an average 

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

unit from which othere are computed. ^

"Second-feet per square mile" is the avera^ 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 1>e covered 

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

distributed on the surface. It is used for comparing runrf^ with 

rainfall, which is usually expressed in depth in inches, s

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

required to cover an acre to the depth of a 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 ttes, 

stream below the gage which determine the stage-discharge relation 

at the gage. It should ber noted that the control may not be the 

same section or sections at all stages.
U. S. GEOLOGICAL SURVEY WATER-SUPPLY PAPER 525 PLATE I

A. PRICE CURRENT METERS.

S. TYPICAL GAGING STATION.
U. S. GEOLOGICAL SURVEY WATER-SUPPLY PAPER 525 PLATE II

A. STEVENS CONTINUOUS. B. GURLEY PRINTING. 

WATER-STAGE RECORDERS.

C. FRIEZ.
' 8

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

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

fall if there wefe no flow.

EXPLANATION OF DATA.

The data presented in this report cover the year beginning October 

1, 1920, and ending September 30, 1921. 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 

ron-off is possibly a small quantity in the ground; therefore the ran0ffrf6r the year beginning October 1 is practically all derived from 

precipitation within th#t year.

>; iOPhe base data collected5 at gaging stations consist of records of 

stage, measurements of discharge, and general information used to 

supplement the gage heights and discharge measurements in deterthe; xdAily flow. The records of stage- are obtained either

t? f , m> ft 

stage recorder that gives a continuous record of the fluctuations.

Measurements ot U discharge -are made with a current meter. (Bee 

Pis. I, II.) The genera] methods are outlined in standard textbooks 

on the measurement of river discharge.

From the discharge measurements rating tables are prepared thai 

ghre^the discharge for any stage. The application of the daily gage 

heights to- these rating' tables gives the discharge from j which , the 

monthly and yearly mean discharge is determined.

Th& data presented for each gaging station in the area covered by 

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

of discharge measurements, a table showing the daily discharge of the 

stream, and a table of monthly and yearly discharge and run-off.

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

tables giving daily gage heights and results of discharge measurements 

are published. ' ,

The description of the station gives, in addition to statements regarding location, and equipment, information in regard to any conditions that may affect the constancy 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 

tecorded stages, and the accuracy of the records.

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

second-feet corresponding to the mean of the gage heights read each

81182 24t WSP 525 2
4 SUBFACE WATER SUPPLY, 1921, PAET V.

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 using 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 heigjtit, 

and the corresponding discharge was consequently larger than gitfen 

in the maximum column. Likewise, in the column headed "Minimum" the quantity given is the mean flow for the day when the mean 

gage height was lowest. The column headed "Mean" is the average 

flow in cubic feet per second during the month. On this average 

flow computations recorded in the remaining columns, which, .are 

defined on page 2, are based.

ACCURACY OF FIELD DATA AND COMPUTED RESULTS.

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

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

observation of stage, 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) refinement 

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

applying daily gage heights to the rating table to obtain the daily 

discharge.1

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

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

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

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

individual measurements with reference to the mean rating curve.

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

showing discharge per square mile and run-off in inches may be subject to gross errors caused by the inclusion of large noncontributing 

districts in the measured drainage area, by lack of mformatien 

concerning water diverted for irrigation or other use, or by inability 

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

1 For a more detailed discussion of the accuracy of stream-flow data see Qrover, N. C., and Hoyt, I. C., 

Accuracy of stream-flow data: U. 8. Qeol. Survey Water-Supply Paper 400, pp. 53-59,1916.
PUBLICATIONS. 5

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

in inches" are therefore not computed if such errors appear probable. 

The computations are also omitted for stations on streams draining 

areas in which the annual rainfall is less than 20 inches. All figures 

representing "second-feet per square mile" and "run-off in inches" 

previously published by the Survey should be used with caution 

because of possible inherent but unknown sources of error.

Many gaging stations on streams in the irrigated sections of the 

United States are located 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 first be satisfied. To give an idea of the amount of 

prior appropriations, a paragraph on diversions is presented in each 

station description. Where figures are given these 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 tbrow 

new light on data previously published.

PUBIJCATIONS. ;

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 

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

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

monographs.

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.

II. South Atlantic and eastern Gulf of Mexico basins.

III. Ohio River basin.

IV. St. Lawrence River basin. t

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.
6 SUBFACE WATER SUPPLY, 1921, PART V.

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 obtained free of charge by applying to the 

Director of the Geological Survey, Washington, D. C. The edition 

printed for free distribution is, however, small and is soon exhausted. 

.2. 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.

3. Sets of the reports may be consulted in the libraries of the 

principal cities in the United States.

4. (Complete sets are available for consultation in the local offices 

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

Boston, Mass., 2600 Customhouse. ; 

, : Aft*ujy,>N. Y., 704 Journal Building. 

, Tceaton, N. ,J,, .State House. 

, Asheville., N. C.,« 6 Government sSjtreet.

Chattanooga,' Tenn., 37 Municipal Building.

Columbus, :Ohio, Browrf Hall, Ohio State University. 

- Chicago, 111., 1404 Kimball Building.

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

Ames, Iowa, State Highway Commission Building.

tiolla, Mo., Rdfla Building, School of Mines and Metallurgy.

Tppeka,'Kans., 23 Federal Building.

Helena, Mont., 52 Montana National Baftk Building.

jftenver, Colo., 403 Post Office Building. 

... Salt Lake City, Utah, 313 Federal Building.

Idaho Falls, Idaho, 228 Federal Building.

Boise. Idaho, 615 Idaho Building.

Tacoina. Wash., 406 Federal Building.

Portland, Oreg., 606 Post Office Building. .

San Francisco, Calif., 328 Customhouse.

Los Angeles, Calif;, 600 Federal Building.

Tueson, Ariz., 210 Agricultural Building, University of Arizona.

Austin, Tex., State Capitol.

Honolulu, Hawaii, 25 Capitol Building.

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

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

Stream-flow records have been obtained at about 5,200 points in 

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

reports tabulated below:
PUBLICATIONS.

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

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

Report.

10th A, pt. 2......

11th A, pt. 2......

12th A, pt. 2... 

13th A, pt. 3-. 

14thA.pt. 2......

B131--. 

16th A, pt. 2_- 

B 140. 

W 11.. ....... .....

18th A, pt. 4. ....

W15 .......

W16 -

19th A, pt. 4......

W27 ... ......

W28 .

20th A, pt. 4......

W 35 to 39-. ...

21st A, pt. 4_-.___.

W 47 to 52 . ......

22d A, pt. 4. ......

W65, 66.... ......

W75 

W 82 to 85.-. 

W97to,100---...

W 124 to 135... 

W 166 to 178......

W 201 to 214-. 

W 241 to 252

W261to272......

W 281 to 292......

W 301 to 312......

W 321 to 332. .. ...

W 351 to 362......

W381to394__ 

W 401 to 414 _ ...

W 431 to 444......

W 451 to 464-. 

W 471 to 484......

W 501 to 514......

W 621 to 534.. _ .

Character of data.

discharge (also many data covering earlier years) .

(also similar data for some earlier years) .

States, eastern Mississippi River, and Missouri River above 

junction with Kansas.

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

(also some long-time records) .

eastern Mississippi River, and Missouri River.

western United States.

__ do.. _____________________________

. do 

..-.do.-..-.........-... --.... ....... ... .

 -_do-_ 

 ..do.. .... 

.. do.. 

 do-. . 

 ..do.- 

 do.... 

 ..do-- 

.... .do.. 

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

... -.do..... . . . 

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

... ..do.- .. 

 .do.... - ........................

.....&Q. .......................................................

Year.

1884 to Sept., 1890.

1884 to June 30, 1891

1884 to Dec. 31, 1892.

1888 to Dec. 31, 1893.

1893 to 1S94.

1895.

1896.

1895 and 1896.

1897. %

1897.

1897.

189a

1898.

1898.

1899.

1899.

1900.

1900.

1901.

1901.

1902.

1903.

1904.

1906.

1906.

1907-8.

1909.

1910.

1911.

1912.

1913.

1914.

1915.

1916.

1917.

1918.

1919-20.

1921.

NOTE. No data regarding stream flow are given in the 15th and 17th annual reports.

* 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 p^ior 

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 1&99> 

to 1921. The data for any particular station will, in general, be 

found in the reports covering the years during which the station was 

maintained. For example, data for Machias River at Whitneyville, 

Maine, 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, which contain records for the New England streams from 

1903 to 1921. Results of miscellaneous measurements are published 

by drainage basins.
Numbers of water-supply papers containing results of stre

Year.

1899«.. 

19000...-

1901.. 

1902 

1903 

1904 

1905 

1906 

1907-8 

1909 

1910 

1911 

1912 

1913---.

1914 

1915 

1916 ....

1917,... .

1918 

1919-20 

1921 

I

North 

Atlantic 

slope 

(St. John 

River to 

York 

River.)

35 

47,»48 

65,75 

82 

97 

n 124, o 125, 

P126 

n 165, 0 166, 

P167 

n 201, 202, 

P203 

241 

261 

281 

301 

321 

351 

.381 

401 

431 

451 

471 

501 

521

II

South 

Atlantic 

and 

eastern 

Gulf of 

Mexico 

(James 

Riveer 

to the Mississippi.)

635,36

48 

65,75 

6 82, 83 

697,98 

P 126, 127

P 167, 168 

P 203, 204

242 

262 

282 

302 

322 

352 

382 

402 

432 

452 

472 

502 

522

iii

Ohio 

River.

36 

48,<49 

65,75 

83 

98 

128

169 

205

243 

263 

283 

303 

323 

353 

383 

403 

433 

453 

473 

503 

523

IV

St. 

Lawrence 

River and 

Great 

Lakes.

36 

49 

65,75 

*82,83 

97 

129

170 

206

244 

264 

284 

304 

324 

354 

384 

404 

434 

454 

474 

504 

524

V

Hudson 

Bay and 

upper Mississippi 

River.

36 

49 

* 65, 66, 75 

*83,85 

* 98, 99, m 100 

* 128, 130

171 

207

245 

265 

285 

305 

325 

355 

385 

405 

435 

455 

475 

605 

525

VI

Missouri 

River.

« 36, 37 

49, i 50 

65,75 

84 

99 

130, « 131

172 

208

246 

266 

286 

306 

326 

356 

386 

406 

436 

456 

476 

506 

526

VII

Lower Mississippi 

River.

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 

607 

527

VIII

Western 

Gulf of 

Mexico.

37 

50 

66,75 

84 

99 

132

174 

210

248 

268 

288 

308 

328 

358 

388 

408 

438 

458 

478 

508 

528

C

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

Paper 39. Monthly discharge for 1899 in Twenty-first Annual Report, Part IV.

6 James River only.

c 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.

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

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

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

& Wissahickon and Schuylkill rivers to James River.

 ' Scioto River.

i Loup and Plat

with Platte.

* Tributaries of M

z Lake Ontario a

m Hudson Bay o

» New England 

o Hudson River 

P Susquehanna R

9 Platte and Kan

r Great Basin in 

> Below junction 

' Rogue, TJmpqu
DIVISION OP WOBK. 9

COOPERATION.

In Montana the work was carried on in cooperation with the United 

States Reclamation Service. With the exception of the station on St. 

Mary River near Babb, Mont., all stations in Montana were maintained jointly with the Dominion Water Power Branch, Department 

of the Interior, Canada.

In North Dakota the work was. done in cooperation with W. H. 

Robinson, State engineer, and at certain stations in cooperation with 

the Bureau of Public Roads, Department of Agriculture, and the 

Flood Control Commission of North Dakota.

In Minnesota the work at certain stations was carried on in cooperation with the following organizations: United States Weather 

Bureau (Mississippi River at St. Paul and Minnesota River near 

Mankato), United States Engineer Corps (Mississippi River at Elk 

River and Minnesota River near Montevideo).

In Wisconsin the work was carried on in cooperation with the Railroad Commission of Wisconsin, C. M. Larson, chief engineer; and at 

certain stations with the Wisconsin-Minnesota Light & Power Co. 

(Chippewa River at Chippewa Falls, Red Cedar River near Coif ax, 

Red Cedar River at Cedar Falls, and Red Cedar River at Menomonie).

In Iowa the work was carried on in cooperation with the Iowa 

Geological Survey, George F. Kay, director; the Iowa Highway Commission, F. R. White, chief engineer; and the Mississippi River Power 

Co. of Keokuk, Iowa, R. H. Bolster, hydraulic engineer. The United 

States Weather Bureau paid part of the observer's salary at the station-on Des Moines River near Boone, and the Interstate Power Co. 

of Chicago paid for the services of an observer at the station on 

Upper Iowa River near Decorah.

In Illinois the work was carried on in cooperation with the Division 

of Waterways, Department of Public Works and Buildings, W. L. 

Sackett, superintendent, and at certain stations with the United 

States Public Health Service, J. K. Hoskins, sanitary engineer 

(Illinois River at Peoria and at Beardstown, Kankakee River at 

Ouster Park, Fox River at Wedron, Vermilion River near Streator 

Mackinaw River near Green Valley, Spoon River at Seville, Crooked 

Creek at Ripley, and Macoupin Creek near Kane), the United States 

Weather Bureau (Illinois River at Morris and at Beardstown), and 

the Central Illinois Public Service Co. (South Fork of Sangamon 

River at power plant, near Taylorville).

DIVISION OF WOBK.

The data for stations in the Hudson Bay basin, in Montana and 

North Dakota were collected and prepared for publication under the 

direction of W. A. Lamb, district engineer, Helena^ Mont., assisted by 

E. F. Chandler and A. H. Tuttle.
10 SUBFACE WATEE SUPPLY, 1921, PART V.

The data for stations in.the Hudson Bay and Mississippi River 

basins in Minnesota were collected and prepared for publication under 

the direction of S. B. Soule", district engineer, by E. F. Chandler, 

assisted by E. E. Foster and W. L. Stockwell.

For stations in the Mississippi River basin in Wisconsin the data 

were collected and prepared for publication under the direction of 

S. B. Soule", district engineer, assisted by S. R. Collins, A. O. Olson, 

and Glenn Rittenburg.

For stations in the Mississippi River basin in Iowa the data were 

collected under the direction of E. D. Burchard, district engineer, 

assisted by R. H. Bolster, R. W. Clyde, C. Herlofson, and A. Davis.

The data for stations in the Mississippi River basin in Illinois 

were collected under the direction of H. E. Grosbach, district engineer, assisted by A. M. Whal.

The manuscript was reviewed and assembled by B. L. Bigwood.

GAGING-STATION RECORDS.

HUDSON BAY DRAINAGE BASIN. 

ST. MARY RIVER HEAR BABB, MONT.

[Including diversion from Swiftcurrent Creek.]

LOCATION. In SB. } sec. 27, T. 36 N., R. 14 W., 1,040 feet above headworks of 

St. Mary canal and 2 miles south of Babb, on Blackfeet Indian Reservation, 

in Glacier County.

DRAINAGE AREA. 278 square miles (including area of Swiftcurrent Creek above 

point of diversion into St. Mary Lake); measured on topographic maps.

RECORDS AVAILABLE. January 1, 1902, to September 30, 1921, Records for 

years 1902 to 1917, containing revisions of previously published records are 

published in Water-Supply Paper 491.

GAGE. Chain gage on right bank used August 23, 1905, to June 15, 191$, 

October 1, 1918, to May 14, 1919, August 23 to September 4 and October 1 

to December 7, 1919, May 14 to November 9, 1920, and May 11 to September 30, 1921, except during winter months from 1912 to 1917, when a temporary gage opposite chain gage was read. Stevens water-stage recorder on 

left bank, installed June 15, 1918, at same datum as chain gage, used June 

16 to September 30, 1918, and May 15 to August 22, 1919. Auxiliary 

staff on right abutment of highway bridge over crest of diversion dam below 

chain gage and at different datum, was installed June 14, 1919, and used 

September 5-30, 1919, December 16, 1919, to May 13, 1920, and November 

10, 1920, to May 10, 1921. Prior to August 23, 1905, a wire gage at same 

location and datum as chain gage was used. Gages read by employees of 

United States Reclamation Service. *

DISCHARGE MEASUREMENTS. Made from cable 560 feet below gage. In September, 1909, the cable was moved from a point about 300 feet downstream. 

Low-water measurements made by wadiag 800 feet below gage. ;

CHANNEL AND CONTROL. Bed composed of gnptfel and cobble stones; practically 

permanent. Banks high and not subject % overflow. Concrete diversion 

works for St. Mary canal, located 1,040 feet below gage, form the;c©ntfr0il 

The dam is provided with flashboard sluice gates near the canal head gates* 

Stage-discharge relation is permanent when canal, gates are closed and flash-? 

boards in sluice gates remain at level of crest of dam.
HUDSON BAY DRAINAGE BASIN. 1J

EXTREMES OF DISCHARGE . Maximum stage recorded during year, 5.80 feet 

(chain gage) May 27 (discharge, 4,700 second-feet); minimum stage, 5.09 

feet (auxiliary gage) February 11 (discharge, 104 second-feet).

1902-1921: Maximum stage, estimated 9.4 feet June 5, 1908 (discharge, 

7,980 second-feet); minimum stage recorded, 1.0 foot April 3-7, 1904 (discharge, 20 second-feet).

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

DIVERSIONS. None.

REGULATION. Flow regulated by naturral storage in St. Mary Lakes, and since 

October 1, 1915, by Sherburne Lake reservoir on Swiftcurrent Creek.

ACCURACY. Stage-discharge relation affected by ice January 13-28 and February 

6-9 and 13-20, and by operation of gates of canal June 12 to August 13* 

Rating curve for open channel with gates closed, well defined for both gages. 

Chain gage read to half-tenths once daily October 1 to November 9 and 

May 11 to September 30. Auxiliary staff gage read to hundredths once daily 

November 10 to May 10. Daily discharge ascertained by applying daily 

gage height to rating table except for periods of ice effect, for which it was 

* ascertained by means of gage heights, observer's notes, weather records, and 

comparison with flow at station near Kimball, Alberta, and except for 

period during which canal was being operated, for which it was ascertained 

by means of the shifting-control method based on discharge measurements 

and record of flow of canal. Records good for periods of open water with 

gates closed; other records fair.

The diversion dam below the gaging station was constructed by the Bureau of 

Reclamation for the purpose of diverting water from St. Mary River into St. 

Mary canal, which carries the water across the divide into North Fork of Milk 

River. The water then flows in the channel of Milk River through Canada, and 

is finally used for irrigation in the Milk River valley in Montana. The present 

capacity of the diversion canal, is about 425 second-feet. A storage reservoir is 

provided on Swiftcurrent Creek by a dam at the outlet of Sherburne Lake. By 

means of a diversion channel connecting Swiftcurrent Creek and Lower St. 

Mary Lake, the run-off from Swiftcurrent Creek is made available for diversion 

through St. Mary canal.

Discharge measurements of St. Mary River near Babb, Mont., during the year

.ending Sept. 30, 1921.

[Made by W. A. Lamb.]

Date.

July 26.. _ .. .... .. ...... ...... ........ .......................

Juag.Ol.. ...........................................................................

Gage 

height.

Feet. 

4.88

2.56

2.04

Discharge.

Sec.-ft.' 

3,500

1,120

598
12 STJBFACE WATEE SUPPLY, 1921, PAET V.

Daily discharge, in second-feet, of St. Mary River near Babb, Mont., for the year 

. ending Sept. SO, 1921.

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.

568

568

568

568

568

643

718

718

798

798

798

718

643

568

493

493

423

358

358

493

568

568

568

493

423

423

358

299

299

246

246

Nov.

246

246

246

246

246

199

199

199

199

190

190

190

178

165

165

165

165

165

159

159

159

159

159

159

190

190

190

222

222

274

Dec.

267

267

267

267

222

209

222

230

252

222

209

209

209

209

216

222

159

149

149

149

149

159

149

149

149

149

149

139

128

118

118

Jan.

139

139

139

139

139

144

149

149

149

144

139

139

130

125

120

115

110

110

110

110

115

115

115

115

110

120

120

120

123

123

123

Feb.

118

113

108

118

113

105

110

110

110

108

104

118

130

130

125

135

180

190

200

210

216

209

209

222

222

222

222

230

Mar.

230

222

209

222

222

222

222

237

237

260

260

237

222

222

237

237

260

260

260

260

260

260

260

260

260

260

260

244

230

222

209

Apr.

209

222

297

342

342

342

342

342

361

361

361

361

388

442

495

556

618

687

728

833

910

910

944

944

910

756

756

742

728

728

May.

618

673

632

618

646

833

944

1,170

1,460

1,690

2,100

2,320

2,380

2,380

2,260

2,210

2,210

2,160

2,260

2,480

2,770

3,000

3,610

3,870

4,140

4,560

4,700

4,070

4,070

3,870

3,610

June.

3,000

3,360

3,480

3,480

3,480

3,740

4,000

4,280

4,420

4,350

4,280

4,290

4,170

4,030

4,040

3,790

3,530

2,940

3,660

3,000

2,500

2,280

2,220

2,220

2,170

2,170

2,170

2,170

2,120

2,070

July.

2,020

1,970

1,970

1,930

1,680

1,680

1,450

1,320

1,320

1,360

1,490

1,490

1,450

1,450

1,410

1,410

1,410

1,320

1,280

1,240

1,210

1,160

1,160

1,160

1,070

1,160

1,070

1,050

990

990

990

Aug.

958

918

918

918

846

798

758

' 680

680

606

598

620

590

643

643

643

643

643

643

643

606

606

606

590

590

568

516

486

472

472

458

Sept.

458

458

458

458

458

458

458

444

430

423

371

371

371

364

352

334

. 323

311

311

311

311

311

299

 299

299

311

317

404

410

486

Monthly discharge of St. Mary River near Babb, Mont., for the year ending Sept. SO,

1921.

Month.

October . .._._.... ...__ 

January. _ . _ ... _____ . ______ . _______

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

June __ __ .. ........ . .......................

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

The year __ _ ________ .. _ ... .........

Discharge in second-feet.

Maximum.

798 

274 

267 

149 

230 

260 

944 

4,700 

4,420 

2,020 

958 

486

4,700

Minimum.

246 

159 

118 

110 

104 

209 

209 

618 

2,070 

990 

458 

299

104

Mean.

527 

195 

189 

127 

157 

241 

565 

2,400 

3,250 

1,380 

657 

379

841

Run-off in 

acre-feet.

32,400 

11,600 

11,600 

7,810 

8,720 

14,800 

33,600 

148,000 

193,000 

84,800 

40,400 

22,600

609,000

ST. MARY RIVER NEAR KIMBAII, ALBERTA.

LOCATION. In SW. J sec. 25, T. 1 N., R. 25 W. fourth meridian, 1 mile south 

and 1 mile west from Kimball, Alberta, and 5 miles north of international 

boundary.

DRAINAGE AREA. 472 square miles (measured on topographic maps).

RECORDS AVAILABLE. January 1, 1913, to September 30, 1921. From September 1, 1902, to December 31, 1912, records were obtained at a point half a 

mile north of the boundary line and are published in the water-supply
HUDSON BAY DRAINAGE BASIN. 13

papers under the heading "St. Mary River near Cardston, Alberta," except 

in Water-Supply Paper 491, in which they are published with revisions 

under the heading "St. Mary River at Cook's ranch, Alberta, near international boundary." A station was maintained by the Alberta Railway & 

Irrigation Co.* at a point half a mile below the present station, from 1905 

to 1908. It was taken over by the Irrigation Branch (now the Reclamation 

Service), Department of the Interior, Canada, in April, 1908, and was 

operated until December 31,1912. The records for this period are published 

in Water-Supply Paper 491, under the heading "St. Mary River near 

Kimball, Alberta, near international boundary." The discharge at the 

three points is practically the same.

GAGE. Stevens continuous water-stage recorder with a concrete well and 

shelter on right bank;' used during open-water seasons since April 10, 1916. 

During winters since January 1, .1915, a chain gage at different datum 

attached to highway bridge 3 miles below station, was read. Prior to 

April 10, 1916, a Friez recorder -at same location and datum as present 

recorder was used during open-water seasons. During winters prior to 

January 1, 1915, a staff gage at the Canadian station about half a mile 

below was read.

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

wading near gage. !

CHANNEL AND CONTROL. Bed of stream at gage and at contrdl composed of 

boulders and sandstone ledges. Control formed by an outcropping ledge 

of sandstone covered with boulders near left bank; shifts occasionally 

during high water.

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

recorder, 6.68 feet at 2.30 p. m. May 26 (discharge, 5,310 second-feet); 

minimum discharge, 111 second-feet February 6 (stage-discharge relation 

affected by ice).

1902-1921: Maximum stage recorded, 12.75 feet June 5, 1908 (discharge, 

18,000 second-feet; estimated from crest stage at station at Cook's ranch, 

Alberta, by comparison with record for station near Babb); minimum discharge, 46 second-feet December 1, 1919 (stage-discharge relation affected 

by ice). A lower minimum may have occurred during winter periods from 

1902 to 1912, for which only estimates of mean monthly discharge are 

available.

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

DIVERSIONS. St. Mary canal, constructed by United States Reclamation 

Service, diverts water from St. Mary River near Babb, Mont., to the North 

Fork of Milk River. During 1921 approximately 72,000 acre-feet was 

diverted. The Alberta Railway & Irrigation Co.'s canal diverts from St. 

Mary River about 2 miles below the station.

REGULATION. Flow regulated by natural storage in St. Mary Lakes and by 

Sherburne Lake reservoir on Swiftcurrent Creek.

ACCURACY. Stage-discharge relation for regular gage changed during winter; 

affected by ice November 10-20 and December 2 to April 4. Two rating 

curves used for regular gage; one, applicable October 1 to November 9, well 

defined; the other, applicable April 5 to September 30, well defined between 

300 and 4,450 second-feet. Rating curve for winter gage based on six 

open-water measurements, used November 21 to December 1. Mean daily 

gage height obtained from recorder graph by straight-edge method, October 

1 to November 9 and April 3 to September 30; chain gage at highway bridge 

read to hundredths once daily November 10 to April 1. Daily discharge 

ascertained by applying daily or mean daily gage height to rating table
14 SURFACE WATER SUPPLY, 1921, PAKT v.

except for periods of ice effect for which it was ascertained by means of. 

gage heights, seven discharge measurements, observer's notes, and weather 

records, and except as noted in footnote to daily-discharge table. Openwater records good; winter records fair.

COOPERATION. Station maintained in cooperation with Dominion Water Power 

Branch, Department of the Interior, Canada.

Discharge measurements of St. Mary River near Kimball, Alberta, during the year

ending Sept. 30, 1921.

Date.

Oct. 6

16

29 Feb. 19

Mar. 12

26

30

Made by 

A. W. P. Lowrie -

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

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

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

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

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

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

 do- - -

Gage 

height.

Feet. 

3.37

4.12

3.77

4.28

4.54

5.23

5.68

5.28

5.06

Discharge.

Sec.-fl. 

700

330

193

217

281

273

1 

Date.

Apr. 7

8

May 12

18

July 7

30

Aug. 33

24*

24

Made by 

A. W. P. Lowrie .

-.--do-... .... .....

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

--...do.....-..... ...

A. W. P. Lowrie.- _ -

 -.do.--.-,--.. ...

W. A. Lamb..-..-- _ .

A. W. P. Lowrie 

Gage 

height.

Feet. 

4.31

2.87

4.83

6.17

4.10

3.46

3.24

3.23

2.74

Discharge.

Sec.-ft. 

468

441

2,203

4,393

1,296

836

657

637

399

* Engineer, Dominion Water Power Branch.

* Measurement made at highway bridge 3 miles below water-stage recorder; flow in canal of Alberta 

Railway & Irrigation Co. included in result.

NoTE.-^-Stage-discharge relation affected by ice Dec. 2 to Apr. 4; measurements made during this period 

referred to chain gage at highway bridge. Measurements of Dec. 1 and Apr. 7 also referred to the chain 

gage.

Daily discharge, in second-feet, of St. Mary River near Kimball, Alberta, for the 

year ending Sept. 30, 1921.

Day.

1 ___ ..... _

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

3. . _ ......

4.. . -. _

5 ..-.. 

6 ....

7 

8 .... ... .

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

10 

11 

12. - 

13 

14 -

15 

16 

17 

18 

19 

20 

21 

22 . _ .

23

24.. 

25 

26 

27 

28 

29 

30-... .

31 . .

Oct.

568

574

574

596

632

702

771

793

809

857

857

809

778

689

620

562

562

535

505

562

620

689

715

715

602

505

424

404

372

364

356

Nov.

328

332

332

297

290

294

300

294

272

267

267

270

281

270

253

295

295

288

284

302

284

321

284

267

250

274

277

* 284

274

321

Dec.

341

337

302

288

241

291

288

288

264

274

284

250

264

257

227

185

175

169

158

148

148

146

146

144

144

139

135

208

194-

197

192

Jan.

213

227

194

179

182

192

194

182

176

172

160

155

142

139

135

131

122

120

120

120

122

122

120

122

124

126

126

126

124

122

122

Feb.

122

122

118

118

120

111

116

116

116

116

126

126

135

135

133

144

205

210

216

221

213

218

244

253

260

257

264

341

Mar.

391

422

413

395

395

395

445

382

325

314

325

281

284

284

333

493

413

413

391

357

450

445

450

432

370

247

349

321

299

288

299

Apr.

370

430

430

384

339

402

466

471

476

476

505

548

575

593

654

687

707

761

818

908

987

1,027

1,051

870

804

700

700

720

734

787

May.

840

804

768

804

840

840

1,067

1,345

1,649

1,923

2,157

2,197

2,264

2,197

2,053

1,949

1,884

1,884

2,368

2,958

3,461

3,835

4,162

4,450

4,720

4,908

4,666

4,270

4,073

3,903

3,699

June.

3,359

3,563

3,665

3,546

3,665

3,903

4,108

4,306

4,396

4,324

4(234

4; 216

4,128

4,022

3,852

3,784

3,495

3,240

3,038

2,814

2,475

2,278

2,251

2,224

2,210

9 9in

2,197

2,105

2,066

1,988

July.

1,962

1,988

1,949

1,793

1,627

1,462

1,336

1,288

1,241

1,278

1,365

1,375

1,345

1,316

1,278

1,260

1,241

1,205

1,152

1,134

1,092

1,067

1,035

995

O71

1,027

955

892

Rifl

818

818

Aug.

797

775

761

734

694

648

617

564

526

481

500

642

668

741

727

748

768

754

720

727

707

687

661

642

623

605

593

548

531

520

Sept.

54&

520-

515

505 tain491

476

48ft

505-

481

466 460-

448-

4QO416

398-

394

394

384

394 380'

394

398.

398

427

448.

491

526

548-

NOTE. Discharge interpolated on account of lack of gage-height record, Apr. 6, 30, May 2, 4, Sept. 12,. 

13, and 16; estimated Apr. 7. Discharge ascertained by hourly-discharge method, May 19, 22, 26, and. 

Sept. 26.
HUDSON BAY DEAINAGE BASIST.

Monthly discharge of St. Ma

15

 y River near Kimball, Alberta, for the year ending 

Sept. 30. 1921.

Month.

October _____________________ . _____

January... _________________________

April.... .......-........ .... ........... .....

June. ____________________________

July........ .. .. -....... ...... ..........

September. _______ . _______________ .

The year _____ . _________________

Discharge in second-feet.

Maximum.

857 

332 

341 

227 

341 

493 

1,051 

4,908 

4,396 

1,988 

797 

548

4,908

Minimum.

356 

250 

135 

120 

111 

247 

339 

, 768 

1,988 

818 

. 481 

380

111

. Mean.

617 

288 

220 

149 

174 

368 

646 

2,550 

3,260 

1,260 

653 

4»B

889

Run-oft* in 

acre-feet.

37,900 

17,100 

13,500 

9,160 

9,660 

22,600 

38,400 

157,000 

1HOOO 

77,500 

44200 

27, 190

644,000

ST. MABT CANAL AT INTAKE, NEAR BABB, MOST.

LOCATION. In NW. i NE. J sec. 27, T. 36 N., B. 14 W., 600 feet below itftake 

of canal and 2 miles south of Babb, on Bj&ekfeet Indian Reservation, |n 

Glacier .County.

RECORDS AVAILABLE, June 1, 1918, to August 31, 1921.

GAGE. Gurley printing water-stage recorder in wooden shelter on right bank; 

inspected by employees of United States Reclamation 'Service. Prior to 

April 17, 1919, a staff gage 300 feet above present gage was used. The two 

gages were set to read the same but are not at the same datum on account 

of the slope in canal between the two points.

DISCHARGE MEASUREMENTS. Made from cable 10 feet above gage. Current is 

evenly distributed throughout cross section and has a moderate velocity at 

all stages.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 6.08 feet 

June 17 (discharge, 519 second-feet).

1918-1921: Maximum stage recorded, 7.04 feet August 8, 1920 (discharge 

655 second-feet).

ICE. Canal not operated during winter.

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

between 20 and 650 second-feet. Operation of water-stage recorder unsatisfactory; staff gage 300 feet upstream, read to hundredths twice daily. 

Daily discharge ascertained by applying mean daily gage height to rating 

table. Records good.

COOPERATION. Station maintained in cooperation with Dominion Water Power

Branch, Department of the Interior, Canada. 

St. Mary canal diverts water from the west bank of St. Mary River near

Babb, Mont., and discharges into North Fork of Milk River. The water then

nows in the natural channel of Milk River through Canada and is finally used for

irrigation in Milk River valley east of Havre, Mont. Water may be returned to

St. Mary River at St. Mary crossing.
16 SUKFACE WATEK SUPPLY, 1921, PART V.

Discharge measurements of St. Mary canal at intake, near Babb, Mont., during the 

year ending September 30, 1921.

Date.

May 14

25

June 10

17

July 7

26

Made by 

A. W. P. Lowrie a.. _ .

W. A. Lamb---.......

W. A. Lamb.,. -....

W. A. Lamb...........

Gage 

height.

Feet. 

3.31

a 79

5.88

5.26

5.05

Discharge.

Sec.-ft. 

178

387

498

383

389

Date.

July 29

A iior Q

12

15

Made by 

E. L. Grant .... .....

 .-do-.....--.....-..

Gage 

height.

Feet. 

5.01

5.01

2.96

2.96

2.35

Discharge.

Sec.-/*, 

368

371

142

147

112

» Engineer, Dominion Water Power Branch, 

b Engineer, Canadian Reclamation Service.

Daily discharge, in$econd<-feet,,of St. Mary canal at intake, near Babb, Mont., for the 

year ending September 30, 1921.

Day.

1 _ .... .

2.... ^ __

3.......,.. 

4. __ .... .

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

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

I- --

9 ._.: 

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

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

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

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

14.... _ ........

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

May.

62

62

135

179

tsn

209

217

June.

320

333

332 336"

358

349

360

357

OQfl

418

431

470

470

431

460

July.

412

406

409

406

413

41 3

410

410

400

d.19

392

392 >QO

fcQQ

392

Aug.

382

383

380 '379

376

171

345

366

362

280

147

117

68

19

Day.

16--- 

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

18--- 

10

20--.. 

21 ...... ..... :

22--. 

1&. ..............

24

25-.. 

26... 

27-.. 

28... 

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

30... 

31-.- 

May.

220

221

245

152

185

167

179

177

239

232

224

224

224

246

273

292

June.

483

519

514

514

500

428

438

427

413

409

412

410

409

408

409

July.

379

379

379

379

379

379

379

379

379

379

384

383

380

380

383

380

Aug.

18

NOTE. Canal head gates opened May 9 and closed Aug. 16.

Monthly discharge of St. Mary canal at intake, near Babb, Mont., for the year 

ending September 30, 1921.

Month.

May9-31-. __ ... ... ._.._ ___ .. . ....

June. ________ ^ __ ___ ...

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

&Xi!g.l-'\&. ...............................................

Discharge in second-feet.

Maximum.

292 

519 

413 

383

Minimum.

62 

320

379 

18

Mean.

198 

417 

391 

272

Run-off in 

acre-feet.

9,030 

24,800 

24,000 

8,630

66.460

ST. MART CANAL AT ST. MARY CROSSING, NEAR BABB, MONT.

LOCATION. In NE. i sec. 30, T. 37 N., R. 13 W. Montana meridian, 250 feet 

east of outlet of siphon by which canal crosses St. Mary River, 10 miles 

below intake, and 9 miles north of Babb, in Glacier County.

RECORDS AVAILABLE. July 6, 1918, to August 16, 1921.

GAGE. Stevens continuous water-stage recorder in wooden shelter on right 

bank; installed April 22, 1919. During 1918 a Stevens water-stage recorder 

on concrete entrance to flume 313 feet downstream from present recorder was 

used.
HUDSON EBAY DBAIttAGE BASIN. 17

DISCHARGE MEASUREMENTS. Made from cable 1,88 feet below gage.

CHANNEL AND CONTROL. Control is at head of the steel flume 313 feet below 

gage. During 1921 debris deposited between gage and flume formed a 

secondary control and caused a shift.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 4.32 feet June 

19 (discharge, 428 second-feet).

1918-1921: Maximum discharge recorded, 487 second-feet at 11 p. m. 

August 8, 1920.

ICE. Canal not operated during winter.

ACCURACY. Stage-discharge relation changed during June by deposition of 

debris between gage and control. Two fairly well defined rating curves 

used, one applicable May 12 to June 12, and the other June 24 to August 

16; indirect method for shifting control used June 13--23., ^Operation of 

water-stage recorder fairly satisfactory. Daily discharge ascertained by 

applying to rating table mean daily gage height obtained from recorder 

graph by straight-edge method except for period for which shifting-control 

method was used and except for May 18, 21, and 23, and August 11-14 for 

which hourly-discharge method was used on account of considerable fluctuation in stage. Records good.

COOPERATION. Station maintained in cooperation with Dominion Water Power 

Branch, Department of the Interior, Canada.

Discharge measurements of St. Mary canal at St. Mary crossing, near Babb, Mont., 

during the year ending Sept. SO, 1921.

Date.

May 13

June 10

July 13

29

Made by 

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

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

W. A. Lamb . .

A. W. P. Lowrie. ......

Gage 

height.

Feet. 

2.45

3.84

3.76

3.67

3.68

Discharge.

Sec.-ft. 

147

320

335

318

323

Date.

Aug. 12

12

14

14

Made by 

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

 ..do. . 

Gage 

height.

Fed. 

2.31

2.33

1.22

1.10

Discharge.

Sec.-ft. 

123

125

38

31

« Engineer, Dominion Water Power Branch. 

t> Engineer, Canadian Reclamation Service.

Daily discharge, in second-feet, of St. Mary canal at St. Mary crossing, near Babb, 

Mont., for the year ending Sept. SO. 1921.

Day.

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

2 __ ...........

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

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

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

6.... _ ... .....

7 _ ............

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

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

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

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

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

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

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

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

May.

138

146

155

176

June.

252

267

269

273

288

284

286

288

311

327

349

366

366

366

July.

346

346

344

348

Ojlfl

348

353

342

335

335

333

333

333

Aug. '

321

321

319

315

295

295

119

, 304

267

125

107

42

29

Day.

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

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

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

19-... ...........

20.-. 

21, _ ...........

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

23... ..

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

26--- 

27

28--- 

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

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

11

May.

177

161

I 121

148

151

156

142

177

199

187

192

197

207

220

235

June.

396

408

426

428

422

376

366

364

353

353

349

349

344

348

July.

322

319

319

319

322

319

322

321

321

321

324

322

321

321

322

321

Aug.

20

NOTE. Canal head gates opened May 9 and closed Aug. 16.
18 SURFACE WATER SUPPLY, 1921, PAKT V.

Monthly discharge of St. Mary,canal at St. Mary crossing, near Babb, Mont., for 

the year ending Sept. SO, 1921.

Month.

May 12-31--- . ........................................

June _________________________ ......

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

August 1-16 ___________________________

The period ______________________

Discharge in second-feet.

Maximum.

235 

428 

353 

324

Jtflnimum.

121 

252 

319 

20

Mean.

173 

343 

331 

232

Run-off in 

acre-feet.

6,860 

20,400 

20,400 

7,360

55,000

ST. MART CANAL AT HUDSON BAT DIVIDE, NEAR BROWNING, MONT.

LOCATION. In NE. J sec. 5, T. 37 N., E. 11 W., on Hudson Bay divide, 12 

feet above first concrete drop in canal, on Blackfeet Indian Reservation, a 

quarter of a mile south of international boundary, and 30 miles north of 

Browning, in Glacier County.

RECORDS AVAILABLE. July 3, 1917, to August 20, 1921.

GAGI^ Stevens continuous water-stage recorder in wooden shelter on left 

bank used since June 29, 1920. The recorder was on right bank, 40 feet 

above present site, during 1919 and from May 25 to June 28, 1920. Prior 

rtb 1819 a staff gage at different'idatum, locate^ at Douglas bridge 1 mile 

above was used.

DISCHARGE MEASUREMENTS. Made from cable 500 feet above gage.

CHANNEL AND CONTROL. Canal has uniform section. At high stages the slope 

of water surface changes slightly with the change in stage. Control is V-- 

shaped notch in the concrete drop 12 feet below gage.

EXTREME OP DISCHARGE. Maximum stage recorded during year, 5.58 feet June 

20 (discharge, 460 second-feet).

1917-1921: Maximum discharge recorded, 472 second-feet at 6 p. m. 

August 9, 1920.

ICE. Canal not operated during winter.

ACCURACY. Stage-discharge relation permanent. Rating curve well defined between 30 and 250 second-feet; fairly well defined outside these limits. Operation of water-stage recorder satisfactory. Daily discharge ascertained by 

applying to rating table mean daily gage height obtained from recorder 

graph by inspection or by straight-line method, except for May 13, June 10, 

11, and August 12-18, for which it was ascertained by averaging the discharge for hourly intervals, owing to rapid fluctuation in stage. Records 

good.

COOPERATION. Station maintained in cooperation with Reclamation Service, 

Department of the Interior, Canada.

Discharge measurements of St. Mary canal at Hudson Bay divide, near Browning, 

Mont., during the year ending Sept, SO, 1921.

Date.

May 16

July 12

30

12

Made by 

A. W. P. Lowrie & __ .

.....do.... .- ... 

W. A. Lamb.... .......

Gage 

height.

Feet. 

4.03

4.99

5.04

4.86

4.84

4.20

Discharge.

Sec.-ft. 

166

305

333

311

313

185

Date.

Aug. 13

13

13

15

Made by 

E. L. Grant ______

O. H. Hoover. ____ .

O. H. Hoover _____

Gage 

height.

Feet. 

3.58

3.56

3.54

2.20

2.20

Discharge.

Sec.-ft. 

126

123

116

37

33

» Engineer, Canadian Beclamation Service. & Engineer, Dominion Water Power Branch.
; HUDSON iE&Y DBAIKAGE BASIN; -19

Daily discharge^ in > second-feet, &f'St. Mary mnal at

Browning, Mont,,fior the year ending Sept. SQr JL921*

Day.

I,...,.. . 2}...............

rt

t:..:r::::::r

5.^U .

«.. 

7.T...... ........

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

9... .

10. ____ .......

11...^... 

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

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

141..... 

15.. __ ..........

May.

0

0

131

too

149

June.

244

275

282

284

299

314

309

314

307

384

373

398

410

DQO

July.

348

344

370

348 "UR

QiO346

350

346

342

337

333

331

328

333

Aug.

311

' 299

297

295

9QTV

- ^>Qfk

288 270"

268

277

, :-275

220

126

QO

DQ

..." , \Dfty- ;;.,;,

16 .......

17.;.::J.U 

18..-,.-. . 

19... . .,. .

20...... -...-^U,

21 J __.

22 ___

23 . 

24_ . i-. g *< ...'.

25.. 

26 . ... __ 27 ... .:. .:-.: 28-.u-.aOQ

on

31. . ... 

May.

."' 165

Ifl9

, j 173

S 143

125

' 14A

. 135

140

> 137

183

1S7

179

m

-.

185

204

225

June.

, 403

480

44*1

455

 460

-' 450

, 398

382

375

364

350

350

350

348

348

.£$,

'326

309

" P07.

307

..«;,«&;

>> m

303

; 305

305

311 air

oor?

297

* 311

jjAug.

24

; 19.1

. ,- 7.5

 ' 1.4

.6

»:;-,- /. -r<

NOTE. Head gates opened May 9 and dosed Aug. 16.

Monthly discharge of St. Mary canal at Hudson Bay divide, near Browning, Mwst,., 

for the year ending Sept. SO, 1981.

Month.

Mayll-31... . _

July.,.,.............. .-. . . ... _____ AagasSl-X^................ ............................

The period ___________________ : _

Discharge in second-feet.

Maximum.

225 

460 

370 

811:

Minimum.

Q 

244 

297 

.6

Mean.

' 147 

361 

326

' 184

Run-off m 

acre-feet

fi,I20 

21,500 

20,000 > > -. %m

64,900

SWIFTCURRENT CBEBK AT MANY GLACIER, MONT.

LOCATION. In sec. 12, T. 35 N., R. 16 W., at outlet of McDermott Lake at 

Many Glacier, in Glacier National Park, 14 miles southwest of Babb, in 

Glacier County.

DBAINAGE ABBA. 31.4 square miles (measured on topographic map).

RECOKDS AVAILABLE. June 6, 1912, to September 30, 1921.

GAGE. Stevens continuous watfer-stage recorder installed June 15, 1918, in 

shelter built by park officials and Great Northern Railway, and referred to 

two staff gages, one inside stilling well and one outside; inspected by C. N.5" 

McGillis. Prior to May 23, 1916, a staff gage on left bank opposite present 

gage was read. May 23,1916, to June 15, 1918, a vertical staff at same location as present gage was read.

DISCHABGE MEASUREMENTS. High-stage measurements since June 26, 1920, 

made from cable, 1,000 feet below gage; prior to that date from highway 

bridge above power house. Section at bridge poor. Low-stage measure* 

ments made by wading above crest of falls or at cable section.

CHANNEL AND CONTBOL. Control is limestone outcrop at outlet of lake; shifts 

slightly. Just below control is a fall and a cataract.

EXTBEMES OF DISCHABGE. Maximum stage recorded during year, 3.97 feet at 

8 a. m. May 26 (discharge, 1,100 second-feet); minimum stage, 1.46 feet 

February 9 (discharge, 27 second-feet).

1912-1921: Maximum stage recorded, 4.75 feet June 17, 1916 (discharge, 

1,550 second-feet); minimum discharge, 8.7 second-feet April 1, 1913, by 

current-meter measurement (stage-discharge relation affected by ice).

ICE. Stage-discharge relation occasionally slightly affected by ice.

DIVEBSIONS. None.

REGULATION. None.
SUBFACE WATER SUPPLY, 1021, PAET V.

ACCURACY. Stage-discharge relation changed slightly during winter. Two 

rating curves used; one, applicable October 1 to February 26, well defined 

between 60 and 400 second-feet and fairly well defined outside those limits; 

the other, applicable May 25 to September 30, well defined between 60 and 

500 second-feet and fairly well defined outside those limits. Mean daily 

gage height obtained by inspection of recorder graph, October 11 to November 4, May 25 to June 8, June 14 to July 18, and July 25 to September 30; 

staff gage read to hundreths once daily, January 2 to February 26. Daily 

discharge ascertained by applying daily or mean daily gage height to rating 

table except for periods of no record for which it was ascertained as indicated 

in footnote to daily-discharge table. Records good for periods during which 

gage-height record was obtained; others fair.

COOPEKATION. Station maintained in cooperation with Dominion Water Power 

Branch, Department of the Interior, Canada.

Discharge measurements of Swiftcurrent Creek at Many Glacier, Mont., during 

the year ending Sept. SO, 1921.

Date.

May 25

June- 1 14 July - e

28

Made by 

W. A. Lamb. __ .....

W. A. Lamb _____ .

Gage 

height.

Feel. 

3.72

3.40

2.62

2.30

Discharge.

Sec.-ft. 

978

730

325

200

Date.

22

24

Made by 

W. A,Lanab- _

Gage 

height.

Feet. 

2.22

1.97

1.94

Discbarge.

Sec.-ft. 

180

103

100

o Engineer, Canadian Reclamation Service. 

» Engineer, Dominion Water Power Branch.

Daily discharge, in second-feet, of Swiftcurrent Creek at Many Glacier, Mont., 

for the year ending Sept. 30, 1921.

Day.

I........... .......... _

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

3.... ..............._.___

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

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

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

7.. __ ^ __ . _....___

8. .... .- ;.. ......... . ..

9.. ................ __ .....

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

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

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

IS...........................

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

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

', 

16 ____ ............. _ ....

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

18. _ ....... __ ......... .

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

20.. __ ...... _ ....... .

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

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

23.. _ . _ ..... _ ..........

24. __ ...............

25. ___ ....................

26. ...... .......I..... .. ..

27.. ........_.. __ ..........

28. _ ... __ ......... .

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

30.......... _ ._ ..__..,__

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

Oct.

90

96

102

108

114

120

126

133

140

147

154

151

145

128

125

120

108

102

100

85

83

79

76

76

76

74

74

77

77

76

Nov.

67

67

62

59

Jan.

41

43

41

39

39

37

35

35

37

37

so

41

39

37

35

34

35

37

34

34

35

37

39

39

41

41

39

37

35

35

Feb.

37

39

37

35

32

30

28

28

27

28

37

125

100

79

72

54

49

47

45

39

39

41

47

62

125

154

May.

962

1,070

854

610

446

456

532

June,

644

674

565

559

735

962

975

937

949

861

773

686

638

735

598

501

435

442

466

506

559

639

686

570

656

598

511

491

451

446

July.

491

446

362

. 318

322

327

331

358

380

344

310

284

276

276

284

276

280

264

236

270

305

268

238

214

214

197

194

197

197

190

184

Aug.

181

181

178

174

151

134

128

131

136

148

148

139

128

136

131

136

139

128

123

112

110

103

98

98

96

91

89

89

91

89

87

Sept.

103

98

89

85

74

66

61

62

66

62

58

58

55

51

48

45

45

45

44

42

33

35

40

40

38

55

78

76

76

72

NOTE. Recorder not operating, discharge interpolated, Oct. 1-10; discharge estimated, June 9-13 

and July 19-24. No record obtained, discharge not determined, Nov. 5 to Jan. 1 and Feb. 27 to May 24.
HUDSON BAY DRAINAGE BASIN.

Monthly discharge of Swiftcurrent Creek at Many Glntier, Mont., for the year

ending Sept. SO, 1921.

[Drainage area, 31.4 square miles.]

 

Month.

November 1-4 ___________

February \~Z&-... .................

.May 25-31.......................

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

August ..-. ___ . _______

Discharge in second-feet.

Maximum.

154 

67 

43 

154 

1,070 

975 

491 

181 

103

Minimum.

74 

59 

34 

27 

446 

435 

184 

87 

33

Mean.

105 

63.8 

37.6 

55,2 

704 

642 

285 

126 

60.0

Per 

square 

mile.

3.34 

2.03 

1.20 

1.76 

22.4 

20.4 

9. OS 

4.01 

1.91

Run-off.

Inches.

3.85 

.30 

1.34 

1.70 

5.83 

22.76 

10.47 

4.62 

2.13

Acre-feet.

6,460 

506 

2,240 

2,850 

9,770 

38,200 

17,500 

7,750 

3,570

SWIFTCUBBEHT CREEK AT SHERBURNE, MOST.

LOCATION. In sec. 35, T. 36 N., R. 15 W., 800 feet below spillway of Sherburne 

Lake dam, in Glacier County.

DRAINAGE AREA. 64 square miles (measured on topographic map).

RECORDS AVAILABLE. July 1, 1912, to September 3$; 192^4

GAGE. Stevens continuous water-stage recorder, installed May 18, 1921, on 

left bank 800 feet below spillway of Sherburne Lake dam; referred to staff 

gage which was installed at same site, August 10, 1920. From July 1, 1912, 

to November 9, 1914, a vertical staff gage was maintained op left bank near 

outlet of lake and at a different datum from present gage. November 10, 

1914, to August 9, 1920, a staff gage on left bank about 300 feet below 

spillway of Sherburne Lake dam was read.

DISCHARGE MEASUREMENTS. Made from cable 450 feet above gage or by wading.

CHANNEL AND CONTROL. An outcropping limestone ledge, somewhat broken 

and irregular, forms the control; subject to slight shifts.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 6. 10 feet May 

28 (discharge, 1,200 second-feet); minimum discharge, practically no flow, 

at times during period June 21 to July 8 when gates in dam were closed.

1912-1921: Maximum stage recorded, 7.85 feet June 17, 1916 (discharge, 

2,280 second-feet); minimum discharge, practically no flow, occurs when 

gates in dam are closed.

ICE. Stage-discharge relation not seriously affected by ice.

DIVERSIONS. None.

REGULATION. Flow regulated by gate operations at dam.

ACCURACY. Stage-discharge relation changed slightly by a landslide April 17; 

not affected by ice. Rating curve used October 1 to April 17, fairly well 

defined between 90 and 300 second-feet; curve used April 18 to September 

30, well defined between 160 and 1,100 second-feet. Staff gage read to 

hundredths once daily October 1 to May 17; operation of water-stage 

recorder satisfactory thereafter. Daily discharge ascertained by applying 

to rating table daily gage height from staff gage or mean daily gage obtained 

from recorder graph by straight-edge method except for periods indicated in 

footnote to daily-discharge table. Records good except for periods when 

gates in dam were closed.

COOPERATION. Station maintained in cooperation with Dominion Water Power 

Branch, Department of the Interior, Canada.
SURFACE,-WATER SUPPLY, 1921, PART V.

Discharge measurements of Swiftcurrent Creek at Sherburne, Mont., during the 

year ending Sept, 30,

Date.

May 23

25

July 26

Made by 

W A T.ftTTlh

 do .

Gage 

height.

Feet. 

5.50

3.00

Discharge.

Sec.-ft. 

985

1,050

259

Date.

24

Made by 

A. W. P. Lowrie &_. 

O. H. Hoover &_. __ .

Gage 

height.

feet. 

2.98

2.49

Discharge.

Sec.-ft. 

234

163

« Engineer, Canadian Reclamation Service. 

.. *Engineer, Dominion Water Power Branch.

Daily discharge, in second-feet, of Swiftcurrent Creek at Sherburne, Mont., for the 

year ending Sept. SO, 1921.

" Day.

1. ..

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

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

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

5.. ........

8 >i .

7 ___ .......

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

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

10 ...

11. __ ........

12;... -1..... ...

13 ....

14...'. 

16..^... u- _

16.., 

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

1ft.;. -- 

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

20..1'.. ........

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

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

2S ...

24. __ .......

25

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

27

28 __ ...._.

29... ..-..< 

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

31

Oct.

146

146

189

421

390

327

322

322

323

322

322

114

.45

7.3

5.0

3.8-

3.8

3.8

303

' 486

444

260 -

98 

62

43

43

43 ' 43

60

72

Nov.

72

72

72 j

72

72

72

72

72

72

79

71

71

71 "71

70

70

70

81

110

110

110

110

189

109 

109,

154

197

197

189

182

Dec.

176

171

... 187

-206

163

178

156

123

 85,

85

7*

 . 70

62

55

55

54

53

» 51

51

51

50

47

46

44 

44

40

40

39

39

42

46

Jan.

44

41

 JQ

41

43

46

46

45

45

44

41

39

39

20

20

30

40

40

40

40

39

40

40

40 

40

39

40

39

39

39

39

Feb.

39

39

38

35

30

30

30

30

30

32

47

67

87

106

105

101

97

94

91

88

86

40 "32

110 

116

98

91

83

Mar.

82

82

81

ft}

95

96

96

98

93

89

85

- 81

72

65

47,

57

63

74

85

89

74

74

72

65 

59

50

45

40

63

60

56

Apr.

63

110

161

146

141

134

131

119

108

106

104

108

140

188

133

105

146

294

368

422

363

344

316

283 

241

191

177

169

161

158

May.

156

155

154

154

169

177

427

539

569

615

662

67»

646

584

495

467

454

518

615

788

882

926

980

1,020 

1,040

1,090

643

826

1,150

1,100

793

June.

753

1,080

1,040

998

987

1,000

1,030

1,050

1,060

1,040

1,040

1,040

1,040

1,030

1,000

962

916

882

858

314

5.4

4.2

4.0

3.6 

1.0

1.2

.8

.6

.5

.8

July.

0.5

1.2

1.0

.8

.8

.7

.6

.6

48

255

255

255

259

259

259

264

264

266

266

262

253

255 255'

257 

253

253

255

255

255

255

255

Aug.

255

249

241

233

220

151

163

163

155

150

155

158

158

158

158

156

156

158

171

177

177

174

169

163 

152

143

133

129

123

120

' 120

Sept.

120

120

120

119

119

119

118

118

119

118

119

119

118

119

119

119

119

119

119

119

119

119

119

119 

08

129

143

192

248

365

NOTE. Discharge ascertained by hourly-discharge method, Oct. 13, 14, 19, 23, 25, 30, Nov. 18, 26, Dec. 

3, May, 27, 28, 31, June 1, 20, July 9, Aug. 6, and Sept. 28-30. Gates in dam closed Oct. 14-18 and June 21 

to July 8; flow represents leakage through gates.

Monthly discharge of Swiftcurrent Creek at Sherburne, Mont., for the year ending

Sept. 30, 1921.

Month.

October

November. .... __ . ......

December .

February .

March ... . . '

April. .. . 

May .

June... __ ..... ---.. .. . .-__

July _ ...

The year. ... .

Discharge in second-feet

Maximum.

486 

197 

205 

46 

116 

98 

422 

1,150 

1,080 

266 

255 

365

1,150

Minimum.

3.8 

70 

39 

20 

30 

40 

63 

154 

.5 

.5 

120 

118

.5

Mean.

187 

99.4 

84.4 

39.3 

66.5 

73.5 

188 

628 

638 

184 

167 

135

208

Bun off in 

acre-feet.

.,11,500 

5,910 

5,190 

2,420 

3,690 

4,520 

11,200 

38,600 

38,000 

11,300 

10,300 

8,030

140,000
ETODSOIff BAY' DBAItfAGE BA&N j < ;

CANYON CREEK NEAR MANY GIACIEE, MONT. - - i . I/

LOCATION. At edge of heavy timber area, half a mile above mouth, in Glacier 

National Park, 2 miles southeast of Many Glacier, in Glacier County.

DRAINAGE AREA. 7.0 square miles (measured on topographical map).

RECORDS AVAILABLE. July 12, 1918, to September 30, 1921.

GAGE. Stevens continuous water-stage recorder on left bank.

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

CHANNEL AND CONTROL. Bed of stream covered with heavy boulders and cobblestones. Control is riffle about 20 feet below gage; may shift at high stage. 

Banks high and not subject to overflow. , ; , EXTREMES OF DISCHARGE. Maximum stage recorded during year, 2.00 feet at 

3 a. m. May 26 (discharge, 166 second-feet); minimum stage, 0.82 foot at 

5 p. m. September 12 (discharge, 6.4 second-feet).

1918-1921: Maximum stage, 2.00 feet May 26, 1921 (discharge, 166 

second-feet); minimum stage, 0.56 foot October 4, 1919 (discharge, 3.3 

second-feet).

ICE. Station not operated during winter on account of severe ice effect.

DIVERSIONS. None.

REGULATION. Some natural storage in small lake at head of creek; no artificial 

regulation.

ACCURACY. Stage-discharge relation changed slightly during winter. Rating 

curve used October 1-31, fairly well defined,between 16. and 52 second-feet; 

curve used May 25 to September 30, fairly well defined between 5 and 140 

second-feet. Operation of water-stage recorder fairly satisfactory. Daily 

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

obtained from recorder graph by inspection except as indicated in footnote 

to table of daily discharge. Records fair.

COOPERATION. Station maintained in cooperation with Dominion Water Power 

Branch, Department of the Interior, Canada.

Discharge measurements of Canyon Creek near Many Glacier, Mont., during the 

year ending Sept. 80, 1921.

Date.

Oct. 11

May 26

July 7

Made by 

 do-. 

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

Lowrie ° and Dawson &.

Gage

Feet. 

1.08

1.87

1.59

1.43

Discharge.

Sec.-ft. 

22.0

138

84

53 ,

Date.

July 26

24

Made by 

W. A. Lamb .... . ...

 doGage

Feet. 

1.23

1.00

1.01

Discharge.

Sec.-ft. 

30.0

13.4

14.8

a Engineer, Dominion Water Power Branch. t> Engineer, Canadian Reclamation Service.

Daily discharge, in second-feet, of Canyon Creek near Many Glacier, Mont., for the 

year ending Sept. 80, 1921.

±>ay.

1... .

2 __ ......

3-. ....

4 __

6_. ........

6.. ........ 

7... _ ....

$_..... .... 

9-. ..... 

10 .......

11. 

12.. ...

I3- 

14 ____ ...

15 __ ......

Oct.

20

20

20

19

17

16

May. June.

93

91

77

96

114

124 

127

Jl/U

108 

104

129

110

100

88

77

July.

93

77

58

54

54

S3 

56

64 

54

4ft

41

41

42

44

Aug.

27

26

26

25

21

19 

18

20 

23

20

18

16

16

16

Sept.

23 -

15

15

14

13

12 

11

14 

14 

17 ...

10

7.0

94

11

11

Day.

16 

17 _ .......

18- 

19-- 

20 __ .

21.. _ .....

22 __ T .i __ 

23 _____ .

24- 

25 ___ ....

26 ___ .... .

27. 

28

29 _ .. .....

30 _ . __ ,.

31-. 

Oct.

14

13

12

1111 '

11 

11 

10

10

9.4

9.0

97

9.7

9.4

9.4

9. 4

May.

142 

142

114

72

62

7tt

82

June.

,, 72

. 68

77

79

86

96 

112 

108

96 

116

100

93

89

87

86

July.

45

41

36

v 35

40

41 

- 36 

34

34 

31

30

29

29

30

28

28

Aug.

17

18

18

16

15

13 

12 

13 ..,- 14'. 

14

1»

13

13

13

13

13

Sept.

19

11

.IS

u

15

21

m

28

20 

20

30

31

29

28

27

NOTE. Recorder not operating, discharge estimated, Oct. 1-10,80, and 31; discharge Interpolated, June 

14 and Sept. 28-30. Braced figure shows mean discharge for penod indicated.
SUBFACE WATER SUPPLY, 1921, PAET V.

Monthly discharge of Canyon Creek near Many Glacier, Mont., for the year ending

Sept. 30, 1921.

[Drainage area, 7.0 square miles.]

Month.

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

May 25-31.. .....................

June. ___________ . ....

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

August _______________

September. ___________ ..

Discharge in second-feet.

Maximum.

20 

142 

129 

93 

27 

31

Minimum,

9.0 

62 

68 

28 

12 

7.0

Mean.

14.9 

97.7 

97.4 

447 

17.3 

17.1

Per 

square 

mile.

2.13 

14.0 

13.9 

6.39 

2.47 

2.44

Run-off.

Inches.

2.47 

3.64

15.5 

7.37 

2.85 

2.72

Acre-feet.

91& 

1,360 

5,800 

2,750 

1,060 

1,020

RED RIVEB AT FARGO, N. DAK.

LOCATION. At dam half a mile above highway bridge connecting Front Street, 

Fargo, N. Dak., with Moorhead, Minn., 10 miles above mouth of Sheyenne 

River, in Cass County.

DRAINAGE AREA. 6,020 square miles.

RECORDS AVAILABLE. May 27, 1901, to September 30, 1921.

GAGE. Vertical staff attached to tree on left bank about 6 rods above the dam; 

vertical staff for use at low stages attached at upper end of fish way at left 

end of dam; read by. R. f. Jacobsen, city engineer of Fargo. Prior to September, 1914, gage readings were obtained from a vertical staff attached to 

breakwater for center pier of Front Street Bridge; this gage is still maintained and used by the Weather Bureau. Datum of Front Street gage is 

such that if the dam were removed, or if the stage were so high as to completely submerge the dam, readings on the Front Street gage would be approximately 10^4 feet greater than on the gage now used. Dam is completely submerged at gage height about 5 feet on present gage.

DISCHARGE MEASUREMENTS. Made from footbridge at gage.

CHANNEL AND CONTROL. Bed composed of clay and silt; nearly permanent. 

Control is timber-crib dam, rock filled, below gage; has settled until the 

lowest point of crest is about 0.7 foot above gage zero. At extreme low 

stage the fall over the dam is about 5 feet.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 4.7 feet April 

6 (discharge, 1,970 second-feet); minimum stage, L15 feet September 24 

(discharge, 48 second-feet).

1901-1921: Maximum stage recorded, 19.9 feet April 6, 1916 (stage-discharge relation affected by ice); maximum open-water stage recorded, 17.34 

feet July 11, 1916 (discharge, 7,740 second-feet); minimum stage recorded, 

1.0 foot February 11, 1918 (discharge not determined).

ICE. Stage-discharge relation not seriously affected by ice.

DIVERSIONS. None.

REGULATION. No power plants or storage above station within 60 miles. Storage not great enough to noticeably affect discharge at station.

ACCURACY. Stage-discharge relation changed<slightly owing to settling of dam; 

slightly affected by ice. Two fairly well defined rating curves used; oneapplicable October 1 to March 31, and the other April 1 to September 30. 

Gage read to hundredths six times a week except during winter when it wasread once a week. Daily discharge ascertained by applying daily gage height 

to rating table except as indicated in footnote to table of daily discharge. 

Open-water records good; winter records fair.
HUDSON BAY DBAHSTAGE BASIUf.

Discharge measurements of Red River at Fargo, N. Dak., during the year ending

Sept. SO, 1921.

Date.

Oct. 10

Nov. 1

Feb. 7

Apr. 2

Mswleby 

E. F. Chandler. . ...

W. L. Stoekwell- 

-....do.................

 .-do................

Gage 

height.

Feet. 

2.35

2.38

 1.90

2.63

Discharge.

Sec.-ft. 

375

479

234

755

Date.

30

Aug. 31

Made by 

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

E. F. Chandler. ___ .

'' Ct-i- .*- '

Feet. 

2 70

2.33

9 M

1.56

.Discharge.

Sec.-ft. 

666

456

501

136

 Stage-discharge relation affected by ice.

Daily discharge, in second-feet, of Red River at Fargo, N. Dak., for the year ending

Sept. SO, 1921.

Day.

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

2 __ ... ..

3 

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

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

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

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

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

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

10.. 

11. .

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

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

if........ ...........

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

16. . 

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

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

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

20 .. 

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

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

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

24. 

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

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

27. . 

28. 

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

30 . 

SI...................

Oct.

485

462

462

462

462

462

462

462

462

462

462

462

462

462

485

485

485

485

485

462

440

485

485

474

462

462

462

440

440

462

462

Nov.

462

462

400

420

420

420

441

462

485

462

440

420

400

350

300

320

400

420

400

400

400

400

400

440

430

420

440

400

400

400

Dec.

420

MV>

440

440

440

440

462

420

340

262

217

258

300

340

340

340

280

192

210

214

218

222

226

230

235

240

245

250

255

260

265

Mar.

300

340

320

320

327

334

.340

300

300

300

280

300

310

320

320

320

320

400

530

555

580

730 755

808

835

890

835

780

730

580

530

Apr.

475

569

844

1,120

1,600

1,970

1,240

1,000

890

822

752

698

671

569

594

545

545

545

545

521

475

475

498

522

545

594

619

594

645

671

May.

645

619

594

569

521

569

569

545

521

521

498

475

475

498

510

521

475

498

498

521

475

498

521

521

475

475

475

452

452

452

464

June.

475

521

1,000

1,150

1,100

1,060

945

890

780

752

725

672

619

594

594

475

569

498

510

521

498

475

386

386

386

386

386

344

386

303

July.

303

210

222

234

246

303

303

276

260

278

295

272

272

264

2S5

291

297

303

303

303

264

264

257

216

176

176

179

179

159

227

256

Aug.

284

264

249

257

257

224

192

169

162

192

192

w145

10

176

102

144

166

135

169

144

129

102

129

179

176

192

201

210

213

192

Sept.

129

72

112

152

192

253

192

92

192

159

159

144

129

129

15»

176

152

12»

144

102

78

57

48

69

90

68

129

210

344

NOTE. Stage-discharge relation affected by ice Dec. 7 to Mar. 16; discharge ascertained by means of 

occasibnal gage readings, one discharge measurement, observer's nctes, and weather records, as'-follows: 

Dec. 7-31, as given in table; Jan. 1-31, 220 second-feet; Feb. 1-28, 240 second-feet; Mar. l-16,,as given ratable. Gage not read on Sundays during open-water periods, except Oct. 31, Nov. 28, and Sept. 11; discharge interpolated. Gage also not read on the following days: Nov. 25, May 31, July 4,-Auf- fl, 13 and 

Sept. 5, discharge interpolated. During period of ice effect the gage was read only on the following days: 

Dec. 7-11,13-19, 27, Jan. 3,10,17, 20, 21, 26, 31; Feb. 7, 8,15, 22, 28; Mar. 1-4, 7-12, and 14-16. ]

Monthly discharge of Red River at Fargo, N. Dak., for the year ending Sept. 30, 1921.

Month.

October ___________________________

April 

May .. . .

June _ .. . . .. 

July.. ...' ........ . 

September. ____________ , ...__.._ .

The year _______________ . __ __ ..

Discharge in second-feet.

Maximum.

485 

485 

462

890 

1,970 

645 

1,150 

303 

284 

344

1,970

Minimum.

440 

300 

192

280 

475 

452 

303 

159 

102 

48

48

Mean.

466 

414 

306 

220 

240 

480 

738 

513 

613 

254 

183 

140

381

Run-off in 

acre-feet.

' 28,700 

24,600 

18,800 

13,500 

13,300 

29,500 

43,900 

31,500 

36,500 

15,600 

11,300 

8,330

276,000

NOTE. See footnote to table of daily discharge.
26 SURFACE WATER 'SUPPLY, 1931, PART V.

BED BXVEB AT GBAND FORKS, V. OAK. U

LOCATION. At Northern Pacific Railway bridge between Grand Forks, N. Dak., 

and East Grand Forks, Minn., half a mile below mouth of Bed Lake River, 

in Grand Forks County.

DRAINAGE AREA. 25,000 square miles.

RECORDS AVAILABLE. May 28, 1901, to September 30, 1921; gage-height 

records have been kept by the United States Engineer Corps since 1882 and a 

few discharge measurements were made by them in early years.

GAGE. Vertical staff with enameled face attached to ice-breaker below center 

pier of Northern Pacific Railway bridge; installed by United States Weather 

Bureau during winter of 1916-17 beside old Geological Survey staff gage 

which was used prior to 1917, but at a datum 5 feet higher. The observers, 

H. L, Hayes and Alex. Slattery, add 5 feet to gage readings to reduce them 

to datum of old Geological Survey gage. Another vertical staff gage 

attached to the ice-breaker beside the enameled gage and at the same datum 

is used by the United States Engineer Corps. Prior to 1918, when the railway bridge was partly rebuilt, a chain gage, attached to middle span of the 

bridge, was maintained for use in case the staff gages were destroyed. This 

chain gage has not been replaced since 1918.

DISCHARGE MEASUREMENTS. Made from Great Northern Railway bridge a 

quarter of a mile above gage.

CHANNEL AND CONTROL. Bed composed of clay and silt; shifts only slightly,

EXTREMES OP DISCHARGE. Maximum stage during year, 20.9 feet April 10 

(discharge, 11,500 second-feet); minimum stage, 2.5 feet August 24 (discharge, 230 second-feet).

1882-1921: Maximum stage recorded, 50.2 feet April 10,1897 (discharge, 

43,000 second-feet); minimum discharge, about 100 second-feet during early 

part of February, 1912 (stage-discharge relation affected by ice).

. ICE Stage-discharge relation seriously affected by ice. The ice cover is usually 

complete and smooth from late in November until about the beginning of 

April and the flow steady with few fluctuations; in determining flow during 

spring break-up, however, corrections amounting to several feet at t'.mes 

must be applied to gage heights before applying them to open-water rating 

table owing to backwater from ice jams.

DIVERSIONS. None.

REGULATION. No power plants above with sufficient storage to cause noticeable 

variations in flow.

ACCURACY Stage-discharge relation practically permanent except as affected 

by ice. Rating curve well denned beween 650 and 16,000 second-feet; 

fairly well defined above 16,000 second-feet Gage read to quarter-tenths 

once daily except during period December 26 to March 14 when it was read 

twice weekly. Daily discharge ascertained by applying daily gage height 

to rating table except for period of ice effect for which it was ascertained as 

indicated in footnote to daily-discharge table. Open-water records good; 

winter records fair.

Discharge measurements of Red River at Grand Forks, N. Dak., during the year

ending Sept. 30, 1921. *

Pate.

Jan. 13

Feb. 26

Made by 

W. L. Stockwell.........

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

Gage 

height.

Feet. 

«5.80

Discharge.

Sec.-ft. 

729

721

Date.

Apr. 19

Made by 

Stockwell and Oakley..

Gage 

height.

Feet. 

8.20

4.69

Discharge.

Sec.-/*. 

2,840

869

a Measurement made through ice cover.
, BAY DRAINAGE BASIN.

Daily discharge, in second-feet? of Red River at Grand Ptorks, N. Dak., for the year 

r ending Sept. 30,

Day.

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

2. __ - .-- ,--

3

4... . -.-.

5.-. 

6 

7 ___ ... ,.- _

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

9 _ ... . . ...

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

11* . 12 

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

14 

15.. __ . __ .......

16.. __ . _ . ____ .

17-. ...........

18 _____ ..........

W..J .. .... '..

20....... ...

21 ____ ....... _ .-

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

23 . . ..

24 , T

26 ... 

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

27 .i.ii ._

28 __ _ .. __ .

29

30......... __ .....

31 

Oct.

1,300

1,260

Ij250

1,250

1,200

1,200

1,160

1,160

1,120

1,070

1,030

1,030

1,030

1,030

1,070

1,070

1,070

1, 120

1, 160

1,200

1,250

1,300

1,840

1,300

1,300

1^250

' 1,250

1,250

1,200

1,160

1,120

Nov,

1,120

1,070

1,070

1,070

1,120

1,120

1,160

1,160

1,160

1,160

1,160

1,120

1, 070

1,030

990

990

1 030

1,030

1, 080

MW

1,070

1,070

1,070

,1,030

9flO

990

990

1,030

1,070-

1,120

Dec.

1,120

1, 160

1,160

1,160

1,160

1,160

1,120;

1,070

1,030

1,030

1,030

1,030

1,070

1,030

1,080

990

990

950

960

. 990

1,030

1,030

1,030

990

990

970

960

950

950

950

950

Mar.

833

808

784

760

761

742

733

724

712

700

6S9

689

 680

689

fiSQ

1,160

1,160

1,160

1,200

1,340

1,540

1,590

1;800

2,020

2,380

2,860

8,840

O QQrt

4,180

3,880

3,700

Apr.,

3,400

3,620

3,820

4,240

4,980

6,230

8,280

10,300

11,200

11,500

10,800

8,600

6,360

5,020

4,960

4,000

3,520

3,400

3,100

2,980

2,800

2,800

2,560

3,500

2,500

2,680

2 660

2,620

2,680

2,560

May.

2,800

2,740

2,680

2,620

2,560

2, COO

2,380

2,260

2,140

2,020

1,910

1,850

1,800

1,740

1,740

1,690

1,690

1,640

1,590

1,590

1,540

1,540

1,490

1,490

1,440

1,390

1,340

1,340

1,390

1,490

1,590

June.

1,690

1,800

1,910

2,140

2,500

2,800

3,100

3,280

3,400

3,400

3,340

3,280

3,220

3,160

2,980

2,980

2,980

2,920

2,920

2,860

2,800

2,740

2,680

2,620

2,440

2,380

2,380

2,380

U,380

2,260

July.

t

!40

020

1,910

1,800

1,690

1,640

1,640

1,590

1,590

1,540

1,540

1,540

1,540

1,590

1,540

1,490

1,390

1,340

1,300

1,200

1,160

1,120

1,070

1,030

990

950

910

871

833

833

833

Aug.

833

796

796

760

760

724

724

689

655

622

590

558

527

468

413

388

364

341

820

300

281

263

246

230

230

364

796

1,030

1,120

1,200

1,300

Sept.

1,340

1,390

1,440

1,490

1,590

1,690

1,800

1,910

1, 970

1,910

1,800

1,690

1,590

1,640

1,690

1,590

1,540

1,490

1,390

, 1,300

1,200

1,120

1,070

1,030

1,070

1,160

1,250

1,300

1,340

1,390

NOTE. Stage-discharge relation affected by ice Nov. 0 to Apr. 6, discharge ascertained by means of gage 

heights, two discharge measurements, and Weather records, as follows: Nov. 9 to Dec. 31, as given in table; 

Jan., 1-31, 800 second-feet; Feb. ,1-28, 730 second-feet; Mar. 1 to Apr. 6, as given in table. During periods 

Dec. 26^31 and Mar. 1-14, the gage Was read only on Dec. 27 and 31, Mar. 1, 4, 8, and 11; discharge for 

intervening days interpolated.

Monthly discharge of Red River at Grand Forks, N. Dak., for the year ending Sept. 30,

1921.

Month.

October ______________ "... ............ . ........

January _____________ . _____________

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

July.....-.............,...........i..... ................

Discharge in second-feet.

Maximum.

1,340 

1,160

1,160

4,180 

11,500 

2,800 

3,400 

2,140 

1,300 

1,970

11,600

Minimum .

1,030 

990 

950

689 

2,500 

1,340 

1,690 

833 

230 

1,030

230

Mean.

1,180 

1,070 

1,030 

800 

730 

1,550 

4,860 

1,870 

2,720 

1,380 

603 

1,470

1,600

Run-off in 

acre-feet.

72,600 

63,700 

63,300 

 49,200 

40,500 

95,300 

289,000 

115,000 

162,000 

84,800 

37,100 

87,500

1,160,000

N;OTK. See footnote to table of daily discharge. 

81182 24t WSP 525 3
SURFACE WATER STTPPLY, 1921, PART V.

BOIS DBS SIOUX HIVES HEAE TEBTWEY, MINN. -.;

LOCATION. Near center of sec. 22, T. 130 N., R. 47 W., at Soo Railway bridge 

2 miles east of Fairmount, N. Dak., 5 miles west of Tenney, Wilkin County, 

Minn., and 15 miles below outlet of Lake Traverse.

DRAINAGE AREA. 1,460 square miles.

RECORDS AVAILABLE. April 1, 1919, to September 30, 1921.

GAGE. Vertical staff attached to eighth pile-pier from left end of railway bridge 

used August 24, 1920, to September 30, 1921. Vertical staff attached to 

sixth pile-pier from left end of railway bridge used April 1 to August 23, 

1920; at same datum as staff gage on eighth pile-pier. Vertical staff attached 

underneath right end of highway bridge, half a mile above railway bridge, 

used April 1 to September 6, 1919. Owing to slope of water surface the 

gage at the highway bridge does not read the same as the gage at the railway 

bridge for other than low stages. Gage reader, Math Schmit. .<

DISCHARGE MEASUREMENTS. Made from highway bridge, from railway bridge^ 

or by wading. . ., .,

CHANNEL AND CONTROL. Bed qomposed of silt and fine olay; overgrown with 

aquatic plants which may, at low stages, inaterially affect stage-discharge' 

relation. Shifts not likely to occur for normal velocities are not swift enough 

to erode channel. '"''

EXTREMES OF DISCHARGE. Maximum discharge during year, 64 second-feet 

April 2 (stage-discharge relation affected Oby iee); minimum discharge, no 

flow, August 18 to September 12.

1919-1921: Maximum discharge recorded, 214 second-feet April 2 and 3, 

1920; minimum discharge same as for 1921. 

A stage of 9.0 feet occurred in April, 1916 (discharge not determined). < 

ICE. Data inadequate for determining discharge during winter.

DIVERSIONS. None.

REGULATION. No reservoirs or power plants Effect the flow. NP Jajrge trifeu* 

taries enter between outlet of Lake Tjcaverse and the station arid abtu£tj 

changes in stage are unusual.

ACCURACY. Stage-discharge relation not permanent owing to growth of aquatic 

plants; affected by ice March 23 to April 3. Standard rating curve fairly 

well defined between 6 and 166 second-feet; extended above 166 secondfeet. Gage read to half-ten.ths four or five times weekly. Daily discharge 

ascertained by applying to rating table the daily gage height corrected for 

backwater from aquatic growth, the amount of which had been determined 

by means of discharge measurements, and by interpolating for days when 

gage was not read, except for period of ice effect, for which it was ascertained 

by applying to rating table the daily gage height corrected for ice effect by 

means of observer's notes and weather records. Records fair. .

Discharge measurements of Bois des Sioux River near Tenney, Minn., during the 

year ending Sept. SO, 1921.

Date.

Oct. 9

May 1

Made by 

E. P. Chandler ........

W. L. Btockwell.......

height.

Feet. 

3.04

2.85

2.73

Discharge.

See.-ft. 

40.6

37.5

15.8

Date.

July 9

Made by 

E. F. Chandler ____

&.

Feet. 

2.27

1.66

Discharge.

See.-ft. 

9.8

L4
HUDSQF BAY DBAINAGE BASIB,

Daily discharge, in second-feet^ of Bois dee Siowx River neat'Tenney, Minn., for the 

year ending Sept. SO, 192L

Day.

1 _ .. ___ ... _ .

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

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

4. _____ .........

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

6.. ____ .... ... ...

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

9 __ . __ ..... _ .

10. 

11

12 

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

14. ____ . __ .. ...

15 w ...

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

17 ie

19 

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

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

22

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

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

25 

26

27 

28 

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

80.....:. .........

31 

Oct.

43

43

43

40

40

40

43

42

40

40

39

38

38

38

38

38

38

3fi

38

38

38

38

38

36

36

36

34

34

33

32

31

Nov.

30

30

28

27

26

26

26

26

28

30

29

28

26

25

23

22

21.

20

19

18

19

1Q

20

20

20

20

20

20

19

19

Dec.

19

19

18

18

.

Mar.

11

13

16

46

34

43

43

48

56

Apr.

56

64

49

34

34

38

38

38

38

38

OO

38

38

38

38

38

38

38

36

34

35

36

38

38

38

38

88

38

88

38

May.

35

82

32

32

32

32

32

32

32

v>

30

31

31

32

33

35

36

36

86

36

84

32.

81

30

30

30

30

31

33

34

36

June.

36

38

34

32

32

32

29

26

25

24

22

21

20

19

18

16

14

14

13

12

, 12

': 11

10

10

10111111

10

July.

10

9

10

10

11

11

11

9

7

8

10

10

9

8

7

8

9

7

d

6

6

4 ' 4

f

3

3

4

3

3

, 3

3

Aug.

2

1

1

1

1

1

1

1

fl

1

1

1

1

1

 ' 1

: i

-;i

' .' >'! ;

:' : -- h * 

Sept.

1

2

4

6

9

9

9

11

10

10

; 10

10

9

8

7

6

5

4

NOTE. Discharge interpolated on account of lack of gage readings, Oct. 1, 4, 6, 8, 11, 13, 24, 26, 29, 31;. 

Nov. 4, 7, 9,11,14-19, 21, 22, 24, 28; Dec. 3; Apr. 3, 7, 10, 14, 17, 21, 25; May 1, 3, 8, 9,12,13, 15, 16, 18, 21, 

23, 25, 28, 29; June 3, 8,10,13,14, 16, 21, 22, 24, 26, 28, 30; July 1, 3, 4, 6. 8,10,12,14, 16,19, 21, 29,31; Aug. 

4, 8,10,12,17,18; Sept. 14,16,18, 21, 24, 26, 29. Practically no flow during period Aug. 18 ;to Sept. 12. 

Only two gage readings obtained during period Dee. 5 to Mar. 22; discharge not determined.

Monthly discharge of Bois des Sioux River near Tenney, Minnn for the year ending

Sept. SO, 1921.

Month.

April.. __ . ___ . _____ .............. _

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

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

Discharge in second-feet.

Maximum.

43 

30 

64 

36 

38 

11 

2 

11

Minimum.

31 

18 

34 

30 

10 

3 

0 

0

Mean.

38.0 

23.5 

39.2 

32.6 

20.3 

6.94 

.58 

4.33

Run-oft* in 

acre-feet.

2,340 

1,400 

2,330 

2,000 

1,210 

426 

36 

258
30 SURFACE WATER SUPPLY,- 1921, PART V.

MUSTINKA RIVER ABOVE WHEATON, MINN.

LOCATION. On line between sees. 7 and 8, T. 127 N., R. 46 W., at steel-concrete 

highway bridge, 1 mile upstream from Chicago, Milwaukee & St. Paul Railway bridge, 1| miles northeast of Wheaton, Traverse County, and 8 miles 

above Lake Traverse, into which the river discharges.

DRAINAGE AREA. 776 square miles.

RECORDS AVAILABLE. March 23 to September 30, 1917, and June 25, 1919, to 

September 30, 1921. June 7 to November 30, 1916, at point about 3| miles, 

downstream.

GAGE. Chain gage attached to bridge; read by Vernon Heggen. An auxiliary 

staff gage, for use during floods, is attached to the Chicago, Milwaukee & 

St. Paul Railway bridge, 1 mile downstream from chain gage.

DISCHARGE MEASUREMENTS. Made from highway bridge to which gage is 

attached, from steel highway bridge just below Chicago, Milwaukee & St. 

Paul Railway bridge, or from highway bridge midway between them. 

Measuring section at gage poor on account of angle of current; best section 

at steel highway bridge below railway bridge. Flow of drainage ditch which 

carries water around gage must be included in all measurements made from 

bridge to which gage; is attached.

CHANNEL AND CONTROL. Bed composed of firm gravel overlain with thin 

deposits of clay and silt; practically permanent. Slope of river from station 

to Lake Traverse is so slight that the stage-discharge relation may possibly 

be affected by changes of stage of the lake.

EXTREMES OP DISCHARGE. Maximum stage recorded during year, 5.5 feet April 

2 (discharge, 287 second-feet); minimum stage, 1.12 feet August 29 and 30 

,(discharge, &2 second-foot),

1917, 1919-1921:.Maximum stage recorded, 14.7 feet April 1, 1917 (discharge, 2,340 second-feet); minimum stage occurred in 1921. 

"IcE/ Stage-discharge relation seriously affected by ice. Data insufficient for 

determination of discharge.

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

well defined below 2,400 second-feet. Gage read to hundredths once daily 

October 1 to November 6 and about six times weekly, April 1 to June 15; 

from June 15 to September 30 it was read about twice weekly. Daily discharge ascertained by applying daily gage height to rating table and by 

interpolating for days of no gage reading as indicated in footnote to dailydischarge table. Records fair.

Discharge measurements of Mustinka River above Wheaton, Minn., during the year

ending Sept. SO, 1921.

Date.

Oct. 10

 Made by 

E. F. Chandler... .....

W. L. StockweU.......

height.

Feet. 

1.39

2.24

Discharge.

Sec.-ft. 

1.6

32.3

Date.

June 19

Made by 

E. F. Chandler ....

Gage 

height.

Feet. 

1.64

1.48

Discharge.

Sec.Jt. 

3.9

3.4
HTIDSQH BAY DEAIKAQE BASI3S", ai

Daily discharge, in second-feet, of Mustinkct River above Wheaton, Minn.f for the 

yew endinff Sept. SO, W&l.

Day.

1. _ ......_..r... .... .. __ . __ ...

2......................... ____ ....

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

4..,. __ ........ ______ ... ___ ..

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

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

1........... ............ ... ... ____

8............................. _ ....

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

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

11... _ ..... ______ . ________

12 

13 . 

14...... _ . __ ..... _ ..............

15... .- -._.-.-..... ... ..........

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

17..... __ .. __ ........ _ .... . _ .

18 7 ... ...................

19.............!....-................

20.-............-............ ......

21.-..-..................... . ...

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

23... . ._ _._. 

24 ._-. __ . .

25....... -... .... ............-.

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

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

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

29

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

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

Oct.

1.8

1.8

2.1

2.1

2.1

1.8

1.6

1.6

1.6

1.4

1 * *

1.6

1.4

1.4

1.4

1.4

1.4

1.6

1.4

1.4

1.4

1.2

1.1

1.1

1.2

1.4

1.6

2.1

2.4

2.9

3.2

Nov.

3.5

5.9

3.9

4.6

4.8

5.0

, Apr.

132

287

' 230

186

136

86

n

74

63

so.

26

23

22

20

19

19

19

17

17

17

19

21

25

3ff

35

38

38

35

32

28

May.

25

21

21

21

17

16

11

1.1

6

14

12

11

10

10

12

17

35

62

62

36

10

8

8

8

7

8

8

10

10

June.

8.8

9.7

8.2

7.6

7.0

6.5

6.0 »i 4

5.0

4.7

3.5

3.5

3.7

^ 4

3.2

3.2

3.2

3.2

3.2

2 9

2.6

2.3

2.1

1.9

1.8

1.6

1.5

1.3

1.1

1.8

July.

2,5

3.2

3.9

45

5.2

5.8

46

3.5

3.0

, 2.4

1.4

1.2

1.6

2.1 2,5

3.0

3.4

3.9

3.8

3.6

3.4

3.2

3.1

3.0

2.8

2.7

2.6

2.3

2.1

1.8

1.7

Aug.

1.6

1.5

1.4

1 4

1.4

1.4

1.3

1.2

1.1

1.0

.9

.8

.7

.6

.6

.5

.4

.4

.4

.4

.4

.3

.3

.3

,3

.3

.3

.2

.2

.2

.2

Sept.

0.3

4

4

5

6

8

9

9

2

3

4

5

6

7

8

9

10

11

11.8

9.0

5.4

48

42

3.7

3.2

2.6

2.6

2.5

2.3

2.2

Nora. Gage not read Nov. 7 to Mar. 31 except on Mar. 19; data insufficient for determination of discharge. During period Apr. 1 to June 15 gage was not read on the following days and discharge was interpolated: Apr. 3-5,11,13,14,16, 23,24,29, May 13, 22, 26, June 6, 7, 9, and 14. During period .June 16 to 

Sept. 30, the gage was read on the following days only and discharge was interpolated for intervening periods: 

Jtine 19, 22, 29, July 3, 6, 8,10-12, 16,18, 22, 27, 30, Aug. 3, 6,11,17, 20, 22, 23, 27, 29, 30, Sept. 3,. 7, 8,19, 21, 

26, and 27.

Monthly discharge of Mustinka River above Wheaton, Minn., for the year ending

Sept. 30, 1921.

Month.

October ___________________________

April...................-................. .............

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

June.. ___________________________

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

Discharge in second-feet.

Maximum.

3.2 

287 

62 

9.7 

5.8 

1.6 

11.8

Minimum.

1.1 

17 

.8 

1.1 

1.2 

.2 

.3

Mean.

1.70 

59.5 

16.1 

400 

3.02 

.71 

4.13

Run-oft" in 

acre-feet.

103 

3,540 

990 

23S 

188 

44 

246

BED LAKE RIVER AT THIEF RIVER FAILS, JOHN.

LOCATION. In sec. 33, T. 154 N., R. 43 W., a third of a mile below dam at 

Thief River Falls, Pennington County, and 1 mile below mouth of Thief 

River, which enters from right.

DRAINAGE AREA. 3,430 square miles.

RECORDS AVAILABLE. July 1, 1909, to September 30, 1918, and March 25, 1920, 

to September 30, 1921.

GAGE. Inclined staff on right bank; installed August 19, 1920; read by Dedrick 

Knutson. The old gage, in use when observations were discontinued in 

1918, was found practically destroyed when station was reestablished in 

1920, and could not be rebuilt until August 19, 1920, on account of high 

stages; a series of temporary gages was therefore used prior to August 19.

DISCHARGE MEASUREMENTS. Made from cable 100 feet above gage.

CHANNEL AND CONTROL. Bed composed of gravel and small boulders; practically permanent.
32 SUBEACE WATEB SUPPLY, 1921, PAET V.

EXTREMES OP DISCHARGE. Maximum stage recorded during year, 8.7 feet April 

8 (discharge, 3,200 second-feet); minimum discharge, 78 second-feet November 19 (stage-discharge relation affected by ice).

1909-1918; 1920-21: Maximum open-water stage recorded, 12.2 feet 

April 19-21, 1916 (discharge, 3,700 second-feet); minimum discharge,no 

flow, July 17 and August 27, 1911 (caused by regulation).

ICE. Stage-discharge relation seriously affected by ice.

REGULATION. A short distance above station is a dam owned by Hanson & 

Barzen Milling Co. and the city lighting plant. The variation in load on 

the turbines, due to operation .of the lighting plant (at night) and of the 

mill (chiefly during the day), causes fluctuations in stage at the gage.

ACCURACY. Stage-discharge relation permanent except as affected by iee. 

Rating curve well defined below 4,000 second-feet and fairly well defined 

above that point. Gage read to half-tenths once daily except during winter 

when it was usually read every other day. Daily discharge ascertained by 

applying daily gage height to rating table except for periods of ice effect and 

for days of no gage reading, as indicated in footnote to daily-discharge 

table. Open-water records good except for days of abrupt changes in stage; 

winter records fair.

Discharge measurements of Red Lake River at Thief River Falls, Minn., during the 

year ending Sept. SO, 1921.

Date.

Oct. 7

Jan. 15

Feb. 10

Apr. 4

Made by 

W. L.Stockwell... .

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

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

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

Gage 

height.

Feet.

4.85

05.70

06.00

6.57

Discharge.

Sec.-ft. 

492

392

400

1,410

Date.

May 17

AllQT Q

Made by 

E. F. Chandler ____

Gage 

height.

Feet. 

5.42

5.06

4.72

Discharge.

Sec.-/'. 

872

590

438

« Stage-discharge relation affected by ice.

Daily discharge, in second-feet, of Red Lake River at Thief River Falls, Minn., for 

the year ending Sept. SO, 1921.

Day.

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

8 ._ _ ......

4-. . 

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

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

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

8 ......

9 .. 

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

11.-. _ ....

12. ...... ...

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

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

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

16 .

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

18 . -

19 .

20 .

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

22 

23 ___ ....

24 .........

25 .

26 .........

27 .

28 

29 

30 .

31 .........

Oct.

375

393

OQO

375

375

357

375

393

393

412

494

472

452

452

431

431

452

515

560

560

515

472

472

472

494

515

472

452

472

Nov.

472

494

479

AM

472

452

431

431

412

375

357

323

258

242

242

212

169

78

169

375

412

393

375

375

393

431

393

357

375

Dec.

357

375

366

OK?

375

393

375

340

306

340

357

290

274

282

306

314

323

323

340

357

431

473

515

431

393

393

393

393

357

340

Jan.

323

323

OKO

188

238

357

369

001

393

227

282

338

QQQ

375

357

357

357

357

431

418

406

393

381

369

357

376

393

375

357

Feb.

375

393

OQO

3<M

375

357

357

357

346

323

306

290

30ft

323

323

323

323

306

290

306

323

312

301

290

290

290

Mar.

290

290

290

O74

258

268

274

290

279

OfiQ

258

258

258

258

268

258

274

290

357

323

°4fl

357

290

357

357

560

340

119

131

143

197

Apr.

258

274

sum

740

1,500

1,790

2,640

3,200

1,640

1,430

1,170

1, 170

1,110

995

»Qft

840

840

840

695

740

695

840

740

740

740

' 740

790

790

740

74/1

May

695

650

650

' fldl

650

650

850

650

605

582

650

790

740

740

695

695

695

740

650

650

650

650

672

695

605

605

560

515

695

740

June.

7Qfl

840

790

740

840

790

740

790

740

740

740

695

740

740

flQC

650

695

65Q

740

695

650

538

650

650

605

605

560

560

538

538

July515

538

515

494

543

412

452

494

412

412

412

412

375

357

548

740

740

323

274

227

258

242

258

258

266

274

290

323

393

143

197

Aug.

197

169

227

290

323

357

258

268

274

181

88

156

183

242

227

258

274

242

258

258

274

258

258

242

242

169

197

197,

197

290

290

sept

357

357

357

169

110

97

143

143

227

323

290

306

323

340

357

qey

393

472

472

431

.452

412

893

357

375

290

. 268

227

258

197

NOTE. Stage-discharge relation affected by ice Nov. 10 to Apr. 7; discharge ascertained by means of 

gage heights, two discharge measurements, observer's notes, and weather records. During periods of 

open-water the gage was not read on the following days arid discharge was interpolated: Apr. 24, May 7, 

11, 24, July 5,10,15, 25, Aug. 10 and 28.
BASJSTS;'

Monthly ^discharge, ity second-feet,, of^Rqd, &a$eRiv&r al Thief River 

for th.e,yecir finding Sept. S0t 19%t.

Month.

October. ______ ....

.Ityvember.. _ .; ____

December.: _______

January _________

February ________

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

Maximum.

rflA

494 : ''';5i5

431

393

Kftfl

3,200

Minimum.

357

78

274

290

119

268

Mean.

14.1

., 350

360 *4n

332

OQO

1,020

- .-. Month.

.May . -,^L.. .

Jilly............ .

Maximum*.

790 ' 840

740

357

472

3,200 T

Mini-, 

mum.

515

, $38

143

88

97

'"'"" 78

Mean.

659

691

387

237

308

450

BED IAKE KIVEB AT CROOESTON, JOHN.

LOCATION. In sec. 30, T, 150 N., R. 46 W., at Sampson's Addition steel highway 

bridge in Crookston, Polk County, a quarter of a mile below dam and powerhouse of Crookston Light, Water & Power Co. No tributaries enter within 

several miles. . DRAINAGE AREA. 5,320 square miles.

RECORDS AVAILABLE. May 19, 1901,fto September 30, 1921.

GAGE. Chain gage attached to middle, span of highway bridge; installed July 1, 

1909, and used thereafter until September, 1911, and during 192~0 and 1921. 

A Barrett & Lawrence wafer-stage recorder on right abutment of same 

bridge and at same datum as chain gage was used September, 1911, to Sep-

: tember, 1919. Prior to July 1, 1909, gage was on old Sampson's Addition 

bridge, about 300 feet upstream;: this gage read the same as present one at 

.ordinary stages. Observers, M. J. Dean and J. A. McLean, ... , DISCHARGE MEASUREMENTS. Made from highway bridge to which gage is 

attached. ' 

AND CONTROL. Bed eettBposed of silt, gravel, and sntall boulders; 

slightly shifting.' Control not well defined. One channel'at all stages.

OF DiscHAROE. ^Maxi^um stage recorded during year, 6.1 feet June. 

11 {discharge, 1*690 second-feet); minimum stage, 3,2 feet August 4 (discharge, 284 second^feejE); prbbiably not actual extremes for the year. '^ 

1901-1921: Maximum opeflrwalter stage recorded, 21.1 feet July 5, 1919 

(discharge, about 14,700 secpnd-feet); minimum discharge recorded, iti 

second-feet, by current^metel1 measurement made January 27, 1912. The 

flow is controlled to such an extent that the minimum discharge has no* 

bearing on the minimum natural flow.

ICE. Stage-discharge relation seriously affected by ice. ^Observations discontinued during winter of 1920-21.' - , \.-.-.. ' ;

EEGtJiiATioN.---Diurniai fluctuation in stage,,pa'cticuiarly at low; Water, is caused 

by operation of power plant immediately above station and by another 

8.miles farther upstream; $te#age attach of these plants is comparati'rely 

small, so that mean monthty flow should represent nearly the natural flow.

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

,., defined. Gage read to haM-tenths once, daily. Dafly discharge,a,&eertained 

by applying daily gage height to rating table except as indicated in footnote 

to djaily-discharge table. Records good.
34 SUEFAGE WATEE SUPPLY, 1921, PAET V.

Discharge measurements of Red Lake River at Crookston, Minn., during the year

ending Sept. 30, 1921.

Date.

Oct. 5

Feb. 11

Apr. 16

Made by 

"W L Stoclcwell

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

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

Gage 

height.

Feet

O QA

ad QZ

5.65

Discharge.

Sec,-ft.

KftO

. 546

1,430

Date.

May 14

18

Made by 

E. E. Foster.. .........

K. H. Oakley _____

E. F. Chandler........

».

Feet 

4.74

4.75

5.19

charge. DisSecjt. 

943

1,020

U10

a Stage-discharge relation affected by ice.

Daily discharge, in second-feet, of Red Lake River at Crookston, Minn., for the year

ending Sept. SO, Ml,

Day.

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

2 __ 

3. __ 

4 __ .... _ .........

5 ,. .. ___ ...

6-.. . _ . _ 

T. ................................ ...^......^

8.-. 

.9 ___ ..... _ ... ...,. ....

10. __ ------- __ --._ . .

11, ^ _._ 

12. -. . 

13........,..,. ...--.v 

14.-. 

15._ ............. .L. ...... ................

!«__-.. ^ __ -..L.-L.ji:.... ......... ......

17 ____ .. _ -_------ 

18... ........ __ ... .. _ 

li. ....,.-.,. ,_. .,.. .......

20 _. « - ....

01

22.. _ -__-.--_.__.__.. ,. _

23........... _ ^.... .................. ..... ..

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

25. 

26..-- . 

27... __ ... _ .. _ ..... _ .............. _ .

28- 

29 _ ......... ....... ... .......... _ .... 

3ft.......... .................................. 3i

Oct.%

595

555

555

475

§16

895

596 555'

535

555

4,75 4*75

.495 '- 515

'495

495

515

515

BIS

635

635

635

565

Apr. .

' ' :

900

i ' " :

"i VW,

1,600

1,090

1,200

1,260

675

990

896

1,380

1*140

1,040

1,320

1,040

1,140

1,260

May.

850

990

1,090.

1,260

1,040

990'

1,040

760

806

990

1,090

1,140

I,i40

1,040

595

675

805

1,040

1,090

1..040

805

1,140

940

1,040

1,09ft

1,040

940

940

850

675

805

June.

990

1,090

1,140

'1,200

1,140

'1,260

1,500

1,620

1»62<?

1,620

1,690

' 1, 620

1, 560

1,440

1, 560

1, 320

1,380

1,380

1,200

1,090

1,090

1,090

1,040

760

715

715

715

760

805

675

July.

436

475.

,715

760

805

760

595

475

555

595

675

635

760

715

 515

595

515

555

516

515

655

475

320

320

320

436

475

475

515

515

515

Aug.

675

555

515

284

, 555

' " 615

565

635

. 555

555

515

fflb

476

515

555

515

515

436

476

475

475

475

475

475

515

515

476

515

595

515

515

jSept.

475

397

, 320

515

395

516

555

595

515

596

. 695

515

555

515

--. 595

675

635

595

696

595

596

595

555

565

555

516

515

515

555

515

NOTE. No gage-height record obtained Oct. 23 to Apr. 18; discharge not determined except for periods 

Oct. 23-31 and Apr. 1-18, for which it was ascertained by means of weather records and compartoon with 

flow of adjacent streams. Discharge interpolated Aug. 20, on account of missing gage height. Braced 

figures show mean discharge for periods indicated.

Monthly discharge, in second-feet, of Red Lake River at Crookston, Minn., for the 

year ending Sept. 80, 198L

Month.

April. 

Maximum.

1,260

1,690

Minimum.

595

675

Mean.

1,600

959

1,190

Month.

July. 

August.. . .

Maximum.

805

675

675

Minimum.

436

2S4

320

Mean.

551

517

547
HUDSON BAY DRAIFAGE BASIF, 35

RWER HEAB THUF BWTER FAIXS, MINN. ; ^ v 'I

LOCATION. In sec. 3, T. 154 N., R. 43 W., 1,000 feet above steel highway bridge 

in Marshall County, 5 miles north of Thief River Falls, Pennington Count y 

and 5 miles above mouth of river.

DRAINAGE AREA. 1,010 square miles.

RECORDS,AVAILABLE. July 1, 1909, to September 30, 1917; April 1, 1920, to 

September 30, 1921.

(jrAQE. Chain gage on cantilever timber fastened to a tree on right bank; 

installed August 19, 1920, at same location and datum as former chain gage; 

read by Byron Yager and Mrs. Margaret Hillyer. During period April 2 to 

August 18, 1920, high stages prevented installation of the chain gage and a 

series of temporary gages was used. An auxiliary staff gage is attached to 

left abutment of highway bridge, 1,000 feet below chain gage.

DISCHARGE MEASUREMENTS. Made from steel highway bridge 1,000 feet below 

gage or by wading near gage.

CHANNEL AND CONTROL. Bed composed of heavy gravel and boulders; practically permanent. One channel at all stages. Banks high and not subject 

to overflow.

EXTREMES OP DiscHARGE.-^Maximum stage recorded during year, 9.9 feet April 

5 (stage-discharge relation affected by ice); maximum discharge, 1,700 

second-feet, occurred at gage height 9.8 feet on April 6; minimum stage 3.3 

feet November 20 (no flow).

1909-1917; 1920-21: Maximum stage recorded, 14.5 feet April 23, 1916 

(discharge,,4,080 second-feet); practically no flow past the gage October 1, 

1910, to March 12, 1911, August 2-13, 22-26, 1911, September 1-3, 5-12, 

14-18, 1911, November 10, 1911, to March 26, 1912, and November 16-21, 

1920.

Flood of July, 1919, reached a stage of about 16.3 feet (discharge, about 

4,900 second-feet).

REGULATION. Dam at Thief River Falls, three-fourths of a mile below mouth of 

Thief River, backs up water in Thief River to a point about 1 mile below the 

gage, but the station is protected from influence of the dam by rapids In the 

intervening length of 1 channel. .

ACCURACT. Stage-discharge relation practically permanent except as affected 

by ice. Rating curve well defined below 3,800 second-feet. Gage read to 

half-tenths once daily except as noted in footnote to daily-discharge table. 

Daily discharge ascertained by applying daily gage height to rating table 

except as indicated in footnote to daily-discharge table. Records good 

except those estimated, which are fair.

Discharge measurements of Thief River near Thief River Falls, Minn., during the 

year ending Sept, SO, 1921.

Date.

May 17

Made by 

. ....do-.. ...... ........

K. H. Oakley. __ -...

Gage 

height.

Feet. 

4.04

8.68

4.75

Discharge.

Sec.-ft. 

7.4

505

49

Date. Made by 

E. E. Foster.. .........

Gage 

height.

Feet. 

4.20

4.42

Discharge.

Sec.-ft, 

13.8

19.0

81182 24t WSP 52£
36 SUEFACE WATBB SUPPLY, 1921, PABT V.

Daily discharge, in second-feet, of Thief River near Thief River Falls, Minn.,.for 

the year ending Sept. SO,

Day.

I......,............ ..............

2 ______ .. __ ... _ . ______ .

3. 

4 _____ . _ ...... __ . _____ ..

5.. . ..-...........I .........

 6 . -:.. .. ..

,7 . 

8,. ...-..-........................

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

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

11 . . 

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

13 _____ . _ ._ ________

14 

15 _____ ... __ .. _ .. __ . _ ....

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

17.. _ . _ ..... __ .. _ ...... ___ .

18.. .

19 ___ ..... __ .......... _____ .

20 _ _ . __ . ___ .

21. _ <. __ ......... _ .... ____ ...

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

23 ...... . . . 

24

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

28, .- .-. 

27 ___ .... . ___ .........

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

29 .................. .. _ ..

30 _ . _ .... . ____ ... ____ . __ .

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

Oct.

0.8

.8

.8

.8

1.4

1.4

 ,.8

1.0

1.8

ZO

1.4

2.0

3.0

40

11

11

a

n

11

11

11

13

13

11

11

13

13

13

11

9.5

9.5

6.5

Nov.

6.0

5.2

40

40

3.0

3.0

ZO

1.4

.8

.6

.4

.4

.2

.1

.1

Apr.

30

60

100

486

1,340

1,700

1,050

1,020

878

878

810

612

548

486

364

304

246

180

 May.

.

I 105

1

so

46

46

46

36

36

28

26

22

2217'

17

17

13

13

i W

1 ""

June.

(..

191

191

218

246

275

246

246

160

I .

1

,13

36

28

22

22

' 22

July.

17

17

36

36

36

28

28

28

28

22

22

22

86

46

36

28

28

22

22

17

17

13

13

13

13

9.5; 6.5'

6,5

6.5

13

15

AUg.

17

17

17

17

13

17

17 '17

17

17

13

13

13

6.5

6.5

40

4.0

4,0

40

40

2.0

2.0

2.0

2.0

zo

Zfts

2.0

ZO

2,0

2.0

.8

Sept.

, ft8 " - .&

.8

.8

*8

.8

.8

.8

2.0

ZO

ZO

4 0

40

6.5

17

17

22

28

28

: 22 !'

28

36

36

36

36

28

28

22

22

17

NOTE. Practically no flow Nov. 16-20. No record obtained Nov. 21 to Mar. 31; discharge not determined. No record obtained Apr. 1-3, 18-30, May 1-14, 29-31, June 1-4 and 12-24; mean discharge ascertained by means of weather records and comparison with flow of adjaoeat streams. Braced figures show: 

mean discharge for periods indicated.

Monthly discharge, in second-feet, of Thief River near Thief River Falls, Minn., for 

the year ending Sept. 30, 1981.

Month.

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

Maximum.

13

1,700

Minimum.

as

Mean.

6.76

442

48.8

121

Month.

July 

Maximum.

46

17

36

Minimum.

&5

.8

.8

Mean.

2ZO

8.35

15.0
HUDSON BAY DBAI3STAGE

PEMBIFA BITER AT NECHE, 17. DAK.

37

LOCATION.^ At Great Northern Railway bridge a third of a mile above Great 

Northern Railway dam and two-thirds of a mile north of Neche, Pembina 

County.

DRAINAGE AREA. 2,960 square miles (revised).

RECORDS AVAILABLE. May 1, 1903, to September 30, 1915, and April 1, 1919, 

to September 30, 1921.

GAGE. Vertical staff bolted to concrete abutment at north end of railway 

bridge; read by P. J. Horgan. Auxiliary staff gage attached to abutment 

at north end of highway bridge 350 feet downstream.

DISCHARGE MEASUREMENTS. Made from highway bridge 350 feet below railway 

bridge; at very low stages made by wading below Great Northern Railway 

dam.

CHANNEL AND CONTROL. Bed composed of clay and silt; slightly shifting. 

Control is loose rock dam a third of a mile below gage; shifting.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 7.4 feet 

April 13 (discharge, 733 second-feet); minimum stage, 3.3 feet September 23 

and 24 (discharge, 4.5 second-feet).

1903-1915; 1919-1921: Maximum discharge recorded, 3,870- second-feet 

May 2, 1904 (gage height, 20.9 feet); a stage of 21.4 feet (discharge, 3,850 

second-feet) was reached April 8, 1913; minimum stage recorded, 1.3 feet 

September 15, 16, 18, 19, and 21-24, 1911 (discharge, 1.0 second-foot).

ICE. Stage-discharge relation seriously affected by ice.

REGULATION. The water is raised at low stages from 1 foot to 2 feet at the gage 

by the loose-rock dam about 3 feet high, a third of a mile below, constructed 

to give sufficient depth of water for the intake of Great Northern Railway 

water tank. There is considerable leakage through the dam, but no permanent determination of the effect of the dam can be made because it is 

likely to be somewhat disturbed at its crest by ice run or spring floods in 

any year. There are no reservoirs or power plants that affect the flow.

ACCURACY. Stage-discharge relation changed the latter part of May; affected 

by ice November 13 to March 31. Two rating curves used; one, applicable 

October 1 to May 27, well defined between 8 and 4,000 second-feet, the 

other, applicable May 28 to September 30, well defined between 1.5 and 4,000 

second-feet; the two curves are identical at and above 425 second-feet. 

Gage read to tenths once daily except during period November 14 to March 

25, when it was read but three times. Daily discharge ascertained by 

applying daUy gage height to rating table except for period of: ice .effect and 

for a few days when gage was not read for which it was ascertained as indicated in footnote to table of daily discharge. Open-water records fair to 

good; winter records poor.

Discharge measurements of Pembina River at Neche, N. Dak., during the year

ending Sept. 80, 1921.

Date.

May 12

June 28

Aug. 30

Made by 

E. E.Foster ______ . _ . _ _ . ___ .. ..... .. 

E. F. Chandler.

.....do-.. .-.......-..__-.___.......... ......<.. ...-.. ..............

Gage 

height.

Feet.

4.68

4.13

3.81

Discharge.

Sec.-ft. 

165

61

18.1
38 SURFACE WATER SUPPLY, 1921, PART V.

Daily discharge, in second-feet, of Pembina River at Neche, N. Dak., for the year

ending Sept. SO, 1921.

Day.

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

2--...... ............... .

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

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

5.... __ . _ .......... __

6. .......... ........ ________

7. __________________________

8. _______________________ _

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

10 ..

11______ ____ _..___

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

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

14..... _ ........ . .

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

16. --.... _...._.___.______

n,. .........................

K.. .......................

19 _

20. _- _.._.____.____. ______

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

22... ._________ ______________

^.. ................ .. .

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

25.--.. , _ .__

26___________________________

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

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

29__. _________________

30.... ..... ........_...

31, -._-_.__ _______ ... __

Oct.

50

50

112

112

112

112

129

129

129

129

129

129

129

129

129

129

129

129

146

146

146

146

146

146

146

146:

14.R

129

129

129

129

Nov.

129

129

129

129

129

129

129

19O

129

129

129

129

112

Mar.

/

38

95

95

95

95

Apr.

129

365

403

425

601

557

51S

447

403

447

447

469

733

601

403

382

340

320

260

240

240

240

340

240

220

220

220

220

201

201

May.

201

182

182

164:

164

1 4

164

146

146

129

129

129

129

146

182

1«2

164

164

164

146

146

i. 128 1

129

164

220

360i

260

226

185

185

146

June.

146

146

128

128 '

128

128

110

110

110

110

110>

93

93

93

93

93

77

77

77

77,

77

77

77

77

77'

77

7777 '

77

77

July.

62

62

62

62

185

185

128

185

335

312

1 290

290

205

185

93

77

77

77

62

62

62

62

47

47

47

47

47

47

35

35

35,

Aug .

35

35

35

35

35

35

35

25

25

18

18

13

13

13

13

13

13

13

13

13

13

13

13

13

13

13,

13

13

13

9

9

Sept.

9

9

9

9

11

13

13

18

18

18

18

18

18

25

25

25

25

25

18

13

9

6

4.5

4.5

5

5

9

25

35

47

NOTE. Stage-discharge relation affected by ice Nov. 13 to Mar. 31 j monthly discharge estimated as 

follows: November, 95 second-feet; March, S3 second-feet; estimates for December, January, and Febraary 

withheld on account of lack of sufficient base data. Disc-isu-ge interpolated Aug. 20, 27, and Sept. 5, on 

account of lack of gage readings.

Monthly discharge of Pembina River at Neche, N, Dak., for the year ending Sept. SO,

1921.

Month.

October ______ . _ _____ _ _____ _ ___________

April____.______________________________._________,_______ May _____ . ____ ________________

JuneJuly. ...... ...... _....._........._....._.................

September ____________ , ___ _ ________

Discharge in second-feet.

Maximum.

146

112

733 

260 

146 

335 

35 

47

Minimum.

50

129 

129 

77 

35 

9 

4,5

Mean.

127 

o95 

«50 

358 

169 

96.6 

113 

18,8 

16.2

Run-oft in 

acre-feet.

7,810 

5,650 

3,070 

21,300 

10,400 

5,750 

6,950 

1,160 

964

a See footnote to table of daily discharge.

ROSEAU RIVER AT CARIBOU, MINI..

LOCATION. In sec. 34, T. 164 N., R. 45 W., at steel highway bridge in Caribou, 

Kittson County, 1 mile south of international boundary and 3 miles upstream from crossing of boundary line by river.

DEAINAGE AREA. 1,340 square miles.

RECORDS AVAILABLE. April 1 to October 6, 1917; April 12, 1920, to September 30, 1921.

GAGE. Chain gage fastened to downstream handrail of bridge, 60 feet from 

left abutment; read by James A. McKibbin.

DISCHARGE MEASUREMENTS. Made from highway bridge or by wading.

CHANNEL AND CONTROL. Channel is artificial, of trapezoidal cross section, 

about 100 feet wide and 10 feet deep. Bed composed of hardpan with a 

few scattered large boulders. Point of zero flow, bottom of channel, gage 

height about 3.0 feet.
HUDSON BAY DRAINAGE BASIN. 39

EXTREMES OP DISCHARGE. Maximum stage recorded during year, 10.8 feet 

April 11 (discharge, 1,980 second-feet); minimum stage, 3.2 feet July 24 

and 25 and September 3-7 (discharge, 17 second-feet).

1917 and 1920-21: Maximum stage recorded, 11.5 feet April 15, 1920 

(stage-discharge' relation affected by ice); maximum open-water stage, 

10.8 feet April 11, 1921 (discharge, 1,980 second-feet); minimum stage, 

3.15 feet September 10-12, 29, and 30, 1917 (discharge, 4 second-feet).

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

DIVERSIONS. No diversions involving storage or loss of water. A small channel 

about 31 miles long was dredged some years ago from a point about 4 miles 

above the station to a point 1 mile below. At stages above about 6.0 feet 

water flows in this channel and must be measured and included in all 

measurements of the main river.

REGULATION. None,

ACCURACY. Stage-discharge relation practically permanent. Rating curve 

well defined. Gage read to hundredths once daily. Daily discharge ascertained by applying daily gage height to rating table. Records good.

Discharge measurements of Roseau River at Caribou, Minn., during the year ending

Sept. 30, 1921.

Date.

Oct. 6

Apr. 17

Made by 

W. L. Stoekwell 

 do. 

Gage 

height.

Feet. 

3.35

9.99

Discharge.

Sec.-ft. 

34

al.670

Date.

June 24

Aug. 11,

Made by 

E. E. Foster.. ___ ,.

Gage 

height.

Feet. 

3.66

3.45

Discharge.

Sec.-ft. 

62

37

Includes 265 second-feet measured in cut-off ditch.

Daily discharge, in second-feet, of Roseau River at Caribou, Minn., for the year

ending Sept. 30, 1Q21.

Day.

1 _______ . ___________

1 _.-. . .-

3 - 

4 __ . ____ ... _ . _______ .....

5 

6 . . . 

T. ...................................

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

9.. ._ . ._ 

10 

11 

12 

13 __

14. . 

15 

16 * . 

17. 

18 

19 

20 ___ 

21 . 

22-- 

23 

24 

25 

26 _ _ __ 

27 

28 

29 __ 

Ift

31 _

Oct.

38

38

38

28

24

20

20

20

20

20

24

24

24

24

20

20

20

20

24

24

33

43

53

53

53

48

48

48

48

48

43

Nov.

38

38

38

43

43

38

33

33

43

43

43

43

43

Apr.

1,540

1,980

1,770

1,690

1,810

1,730

1,650

1,650

1,570

1,540

1,390

1,280

1,080

950

920

890

830

800

779

772

744

May.

688

606

58&

554

434

391

312

312

312

294

277

277

260

260

260

244

228

228

228

220

206

213

206

198

191

191

184

157

157

157

144

June.

131

157

198

131

131

150

170

184

191

208

228

213

184

164

138

119

107

.102

96

8&

74

68

63

68

58

48

43

38

33

28

July.

24

28

38

33

33

38

43

38

33

33

33

28

33

28

28

24

24

24

24

24

20

20

20

17

17

20

24

24

33

43

43

Aug.

38

38

33

33

33

33

38

38

43

38

38

38

33

33

28

24

24

24

24

20

20

20

20

on

20

20

20

20

20

20

20

Sept.

20

20

17

17

17

17

17

20

24

28

33

38

43

43

43

48

48

63

80

Qfi

107

no

131

144

1A4

144

131

11Q

107
40 SURFACE WATER SUPPLY, 1921, PART V.

Monthly discharge, in second-feet, of Roseau River at Caribou, Minn., for the year

ending Sept. SO, 1921.

Month. Maximum.

53

688

228

Minimum.

20

144

28

Mean.

V> 4

289

120

Month.

July-.-..... ....__

Maximum.

43

43

144

Minimum.

17

20

17

Mean,

28.8

«, 28.1

65.8

MOUSE RI7EE AT JONOT, H. DAK.

LOCATION. At Anne Street footbridge, northeast of Great Northern Railway 

roundhouse in Minot, Ward County.

DRAINAGE AREA. 8,400 square miles.

RECORDS AVAILABLE. May 5, 1903, to September 30, 1921.

GAGE. Temporary vertical staff gage on shore of river, 500 feet above Anne 

Street footbridge; installed by observer about April 1, 1919, when old Anne 

Street Bridge was taken down and the staff gage on that bridge was destroyed. 

About March 10, 1920, a new vertical staff gage in two sections was installed 

on the piers of the new Anne Street Bridge, but has been read only once a 

week, the temporary gage being used instead. From January, 1910, to 

about April 1, 1919, the vertical staff gage on the old Anne Street Bridge 

was used. Prior to January, 1910, gage used was a vertical staff located 

on a footbridge then existing about 20 rods above Anne Street. All gages 

referred to same datum except the present temporary gage which reads 

0.60 foot higher than the gage on Anne Street Bridge, but readings on the 

temporary gage are reduced to correct datum. Observer, Ephriam Cox.

DISCHARGE MEASUREMENTS. Made from Anne Street Bridge, Ninth Street 

Bridge, South Sixth Street Bridge, or by wading.

CHANNEL AND CONTROL. Bed composed of clay and silt; practically permanent. 

Control is timber and loose-rock dam 1 mile below gage at water tank of 

Minneapolis, St. Paul & Sault Ste. Marie Railway. Dam is submerged 

at high stages causing a reversal in the rating curve.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 8.5 feet 

July 10 and 11 (discharge, 790 second-feet); minimum stage, 3.7 feet 

February 19 (discharge, about 0.3 second-foot; stage-discharge relation 

affected by ice.)

1093-1921: Maximum stage recorded during period, 21.9 feet April 20, 

1914 (discharge, estimated 12,000 second-feet); minimum stage, 1.8 feet 

February 28, 1913 (discharge, 0.1 second-foot).

ICE. Stage-discharge relation affected by ice.

REGULATION. Dam about 5 feet high at Minneapolis, St. Paul & Sault Ste. 

Marie Railway tank, 1 mile below, raises water at gage about 5 feet at ordinary low stage. The dam being designed merely to give enough depth of 

water for the intake-pipe suction, has no sluices, but is not absolutely tight. 

When discharge is less than about 6 second-feet, the water level falls £elow 

crest of dam.

DIVERSIONS. None. %

ACCURACY. Stage-discharge relation practically permanent except as affected 

by ice. Rating curve well defined below 2,500 second-feet. Gage read to 

half-tenths once daily, except during winter period when it was read only 

once weekly. Daily discharge ascertained by applying daily gage height to 

rating table except for period of ice effect for which it was ascertained as 

indicated in footnote to daily-discharge table. Open-water records good; 

winter records fair to poor.

The following discharge measurements were made by E. F. Chandler: 

July 6, 1921: Gage height, 7.31 feet; discharge, 531 second-feet. 

September 5, 1921: Gage height, 4.86 feet; discharge, 39 second-feet.
/ HUDSON BAY DRAINAGE BASIN. :) 41

Daily discharge, in secondtfeet, of Mouse River at Minotf N. Dak., for the year

ending Sept. SO, 1921.

Day.

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

2 ________

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

4 ________

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

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

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

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

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

10 __ ..........

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

12

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

14 __ . _ ......

15.-... _ ......

16 _____ .....

10 __ __ __ .j

18. __ , ____ . is:....!........

20._..,_.......

21. U.; iL.. '* ''

22W........*..

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

24. __ . ___ '._

25 _ . __ .....

'a?..:....?...'...

2BU. *.- iaj i

29

8fl^wL-..-.u.^

8W -" 

Oct.

9

9

7

7

7

7

11

9

7

7

7

7

8

9

9

9

7

7 :. j

9

9

9

9

11

11

9

9

9

9

NOT.

9

9

9

9

9

9

7

f

Dec.

7

7 

4

2.4

Jan.

2.4

1.6

1.6

i. .

S 1.6

1.6

Feb.

1.1

1.1

.3

, 2.4

Mar.

7

11

17ir

25

30

44

70

. 85

98,

85

: 85

56

50

66,

Apr.

68

82

146

164

194

174

164

184

215

248

284

296

248

9.fU

174

184

184

194

184

184

215

184

174

155

. 187

120

14ft

128

120

120

May

104

96

75

82

,82

75

82

82

75

62

68

68

68

62

68

62

56

50

39

34

84

34

29

 < \ ' 44

44

50

44

39

39

44

89

June.

34

34

29

29

34

29

29

29

34

34

34

34

29

2»

29

25

25

f '26 " 29

29

;1 '''29

25

25

 -ft*

25

; .21

120

215,

248

272

July

260

226

237

309

362

469

627

710

730

790

790

710

64S

4£Q

418

309

284

272

 '280 /

260

248

237

226

, 226

215 226'

226

237

237

OOA '

Aug.

194

174

187

104

75

6256'

50

50

44.

44

44

39

24

94

*l

 -- '»

25,

25

29

 29

28 ' %

" "2S -

25

21 " 21

21ifl

18

, ;14-

Sept. ,

. 18

18

18

18

21

21

18

IS

14

18

18

18

18

21

21

21

21

29

29

29

25

25

25

;? 21

21

81

21

18

18

21

NOTE. Stage-discharge'relati&n affected by ice. Dec. 20 to Mar. 25. .During period Nov. 9 to Mar. 18, 

gage was read only on days for whicti discharge is given; mean monthly discharge estimated on basis of 

the occasional gage readings and weather records, as follows: November, 7.6 seoond-feet; December, 5.0 

second-feet; January, 117 second-feet; February, 1.1 second-feet; .and March, 28.0 second-feet. No gage 

reading Aug. 11; discharge interpolated.

of Mouse River at Minot, N. Dak., for the year ending Sept.

Ov, Qfl iiffii. 1Q01 :,' .' '. -,.

Month.

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

November.. ___ ___ ^. __ i......... _ .... ...

December _________________________

February __________________________

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

April...............................................:.....

July.. .. ______ . _____ ... __ .. _ .. ___ .

August.... ______ . _____ z. _ .................

September .

The year. _______________ .............

Discharge in second-feet.

Maximum.

11

296 

104 

272 

790 

194 

29

790

Miphtiimi^

7

68 

34 

21 

215 

14 

14

'Mean.

8.5 

7.6 

5.0 

1.7 

1.1 

28.0 

176 

59.4 

53.6 

381 

49.3 

20.8

66.6

Run-off in 

acre-feet.

533 

452 

307 

105 

61.1 

1,720 

10,500 

3,650 

3,190 

23,400 

3,030 

1,240

48,200

NOT$. See footnote to daily-discharge table.
42 SURFACE WATEB SUPPLY, 1921, FART V.

UPPER MISSISSIPPI miVER BASIN. -

» 

MISSISSIPPI RIVER AT ELK RIVER, MINN.

LOCATION. In sec. 3, T. 121 N., R. 23 W., at highway bridge in Elk River, 

Sherburne County, 2,500 feet below mouth of Elk River.

DRAINAGE AREA. -14,500 square miles.

RECORDS AVAILABLE. July 22, 1915, to September 30, 1921.

GAGE. Chain gage bolted to handrail of bridge, downstream side, near right 

bank; read by Reynard Ebner.

DISCHARGE MEASUREMENTS. Made from downstream side of bridge.

CHANNEL AND CONTROL. Bed composed of sand and gravel. Control not well 

defined but practically permanent. Banks' high and not subject to overflow.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 6.66 feet at 

8.30. a. m. June 15 (discharge, 12,900 second-feet); minimum discharge, 

estimated 2,030 second-feet February 9 (stage-discharge relation affected 

by ice).

1915-1921: Maximum open-water stage recorded during period, 10.& 

feet April 7, 1916 (discharge, 27,000 second-feet); maximum discharge prob-. 

ably occurred on or about April 5, 1917, and has been estimated at aboufc34,000 second-feet from records of discharge at Coon Rapids power plant; 

minimum discharge, estimated 1,880 second-feet November 13, 1919 (stage*, 

discharge relation affected by ice).

ICE. Stages-discharge relation seriously affected by ice.

REGULATION. Neatest dam above station on the Mississippi is at St. Cloud, 

40 miles upstream. An observed systematic diurnal fluctuation at gage of 

about 0.1 foot is doubtless due to regulation at St. Cloud, but most of thev 

effect of regulation is eliminated before reaching the station. Flow of river 

is controlled by Government reservoirs on the upper river, maintained for 

the purpose of increasing low-water opennseason flow in the'interests. *J2if,. 

navigation. Daily and monthly discharge somewhat affected by regulation; 

yearly discharge very nearly natural. v : , ACCURACY. Stage-discharge relation permanent except as affected by ice. 

Rating curve well defined between 2,000 and 14,000 second-feet) fairly well 

defined between 14,000 and 26,300 second-feet. Gage read to hundredths 

twice daily. Daily discharge ascertained by applying mean daily gage 

height to rating table except for period during which stage-discharge relation 

was affected by ice for which it was ascertained as indicated in footnote to 

table of daily discharge. Open-water records excellent; winter records fair.

COOPERATION. Gage-height record furnished by United States Engineer Corps.

The following discharge measurement was, made by S. B. Soule": 

September 13, 1921: Gage height, 3.46 feet; discharge, 3,310 second-feet.
UPPER MISSISSIPPI EIVEE BASIH, 43

Daily discharge, in second-feet, of Mississippi River at Elk River, Minn., for the 

year ending Sept. 30,

Day.

1.. __ ......

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

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

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

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

6.... ......

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

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

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

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

11..... __ ....

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

13 _ . __ . _

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

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

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

17:............

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

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

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

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

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

23... __ ......

24.. __ .. __ .

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

26..^. .........

27' -... .. _ ..

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

3» _ ..........

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

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

Oct.

5,800

5,800

5,500

4,620

4,910

4,910

4,620

4,340

4,340

4,080

4,620

4,620

4,340

4,910

5,500

5,200

5,800

5,800

5,200

5,800

5,800

6,100

5,200

5,200

4,910

5,200

4,910

4,910

4,910

4,910

4,910

Nov.

5,800

4,340

4,620

4,620

4,910

5,200

5,200

5,200

4,910

4,910

8,840

3,400

3,030

3,030

2,860

2,550

2,700

2,700

3,210

3,610

3,840

4,080

3,400

3*400

3,840

3,400

3,400

3,840

3,840

3,010

Dec.

3,840

4,080

4,080

4,080

4,080

4,080

3,840

3,400

3,080

3,400

3,610

3,030

3,210

3,210

2,860

3,030

2,700

2,700

Jan.

2,750

3,030

2,750

2,800

2,720

2,630

3,870

2,720

2,250

2,430

2,830

2,410

2,520

2,490

2,470

2,360

2,260

2,240

2,270

2,340

2,250

2,540

2,240

2,370

2,220

2,180

2,250

2,220

2,470

2,370

2,450

Feb.

3,300

2,850

3,250

2,980

2,860

2,640

2,390

2,030

2,360

2,290

2,210

2,540

2,610

2,630

2,890

2,810

2,880

2,760

2,970

3,100

2,720

2,300

2,460

2,880

2, 810

2,810

2,520

Mar.

2,460

2,940

2,910

3,060

2 970

3,060

3,220

3,060

3,040

3,190

3,310

3,050

3,100

2,800

3,030

3,210

3,210

3,210

3,610

3,840

3,030

2,860

3,610

4,080

3,610

3,610

3,840

3,840

4,080

6,100

5,800

Apr^

5,200

5,800

5,800

6,700

7,000

7,310

7,OOQ

7,930

10,200.

9,200

9,840

9,520

9,200

9,520

8,240

8,240

7,930

7,310

7,310

7,000

6,700

7,000

7,000

6,700

6,700

6,700

6,700

7,000

6,700

6,400

May.

7,930

5,500

6,100

5,200

5,200

4, 910

4,620

4,620

4,080

4,340

4,080

4,080

3,840

4,910

4,620

4,080

4,340

4,910

3,840

2,700

2,700

2,860

2,700

2,700

2,700

2,860

3,210

3,030

4,620

4,080

4,340

June.

6,100

9,200

9,200

9,200

9,200

9,200

10,200

10,500

10,800

11,800

12,100

12,400

12,400

12,400

12,700

12,400

12,100

11,800

11,800

11,400

10,800

8.880

9,520

8,560

8,240

8,240

7,310

6,700

6,100

5,200

July.

5,500

5,500

6,100

5,200

5,200

5,800

5,800

6,100

5,300

6,100

6,100

6,100

6,100

6,400

5,800

5,500

5,800

5,800

5,500

5,800

5,800

5,800

5,500

6,200

5,200

5,500

5, 50(J

5,290

5,200

5,200

4,910

Aug.

4,620

4,340

4,080

4,340

4,340

4,080

3,610

3,610

3,610

3,610

3,610

 3,400

3,400

3,210

3,610

3,610

3,610

4,080

4,080

4,090

3,840

3,840

3,400

3,610

3,840

3,400

3,610

3,210

2,860

3.610

a, 400

Sept.

3,400

3,400

3,210

3,210

2,860

3,210

2,420

3,030

3,030

3,030

3,030

2,860

3,030

3,400

4,340

4,620

4,340

3,610

3,610

4,340

4,620

4,340

4,080

4,080

4,080

3,610

4,080

3,840

3,8*0

3,400

NOTE. Stage-discharge relation affected by ice Dec. 18 to Mar. 14; discharge Dec. 18-31 ascertained by 

means of gage heights and weather records; discharge Jan. 1 to Mar. 14, ascertained by means of discharge 

records from Coon Rapids power plant, computed by Northern States Power Co., allowance being made for 

discharge of Crow and Rum rivers, which enter between Coon Rapids and the gaging station. Braced 

figure shows mean discharge for period indicated.

Monthly discharge of Mississippi River at Elk River, Minn.t for the year ending

Sept. 30, 1921.

[Drainage area, 14,500 square miles.]

Month.

November... __ . ______________

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

The year _ . ..........................

Discharge in second-feet.

Maximum.

6,100 

5,800 

4,080 

3,030 

3,300 

6,100 

10,200 

7,930 

12,700 

6,400 

4,620 

4,620

12,700

Minimum.

4,080 

2,550

2,180 

2,030 

2,460 

5,200 

2,700 

5,200 

4,910 

2,860 

2,420

2,030

Mean.

5,090 

3,910 

3,140 

2,470 

2,690 

3,440 

7,460 

4. 180 

9,880 

5,650 

3,730 

3,600

4,600

Per square 

mile.

0.351 

.270 

.217 

.170 

.186 

.237 

.514 

.288 

.681 

.390 

.257 

.248

.317

Run-off in 

inches.

0.40 

.30 

.25 

.20 

.19 

. 27 

.57 

.33 

.76 

.45 

.30 

.28

4.30
44 SURFACE WATEB SUPPLY, 1921, PAET V. 

MISSISSIPPI RIVER AT ST. PAUL, BONN.

LOCATION. At Chicago Great Western Railway bridge near foot of Robert 

Street, St. Paul, Ramsey County, 6 miles below mouth of Minnesota River.

DBAINAGE ABEA. 35,700 square miles.

RECOBDS AVAILABLE. March 22, 1887, to September 30, 1-921. Observations 

of stage were begun in 1873 by United States Signal Service and continued 

by the Weather Bureau. Many discharge measurements were made prior 

to 1900 by United States Engineer Corps.

GAGE. Chain gage installed May 9, 1913, on downstream handrail of Chicago 

Great Western Railway bridge; read by employee of the Weather Bureau. 

From 1911 to May 9, 1913, gage was a vertical staff attached to a piling on 

left bank of river about 800 feet upstream from present gage. Prior to 1911 

a vertical staff gage on Diamond Joe Line wharf, at foot of Jackson Street, 

about 400 feet below present gage, was used. Datum of all three gages is 

the same, allowance being made for the slight slope in river between them.

EXTBEMES OP DISCHAEGE. Maximum stage recorded during year, 6.7 feet June 

16 (discharge, 19,500 second-feet); minimum stage recorded, 0.3 foot 

September 5 and 6 (discharge, 3,360 second-feet).

1887-1921: Maximum stage recorded, 18.0 feet April 6, 1897 (discharge, 

80,800 second-feet); minimum discharge recorded, 1,060 second-feet February 4, 1895.

Highest known discharge occurred July 22, 1867. and amounted to 117,000 

second-feet.

DISCHARGE MEASUREMENTS. Prior to 1915 made from Chieago, St. Paul, Minneapolis & Omaha Railway bridge, 2 miles above station. In November, 

1915, and April, 1916, made from Chicago Great Western Railway bridge 

to which gage is attached. Sirice 1916 measurements have been made from 

Wabasha Street highway bridge, about 1,000 feet above station.

CHANNEL AND CONTBOL. Channel fairly permanent. Control hot well defined. 

Banks moderately high; have not been overflowed in recent years.

ICE. Stage-discharge relation seriously affected by ice.

REGULATION. During extreme low water regulation of the flow through turbines 

at the nearest dam in Minneapolis may cause diurnal fluctuation of stage 

at St. Paul. Flow is regulated by Government reservoirs in the headwaters 

at Lake Winnebigoshish,- Leach Lake, Pokegama Lake, Sandy Lake, Pine 

River, and Gull Lake, maintained for the purpose of increasing low-water 

open-season flow in the interests of navigation, but the effect of this regulation is very gradual at St. Paul.

ACCUBACY. Stage-discharge relation permanent except as affected by ice. Rating curve well defined throughout. Gage read to tenths once daily. Daily 

discharge ascertained by appliyng daily gage height to rating table except 

for periods of ice effect for which discharge was not determined. Records 

good.

COOPEBATION. Gage-height record furnished by the Weather Bureau.

The following discharge measurement was made by S. B. Soule1 : ' jj 

September 12, 1921: Gage height, 0.04 foot; discharge/ 3,700 second-feet.
TJPPEB MISSISSIPPI EIVEE BASIN. 45

Daily discharge, in second-feet, of Mississippi River at St. Paid, Minn., for the year*

ending Sept. SO, 1921.

Day.

1 ..

2 . 

3 .... _

4... __ . ____ .. 

» _ _

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

7 __________

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

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

10 - 

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

12.., ..............

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

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

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

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

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

18 ____ . .........

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

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

21 _ ..............

22 _____ . .......

33.... ........

24 __ ..........

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

38 .............

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

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

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

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

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

Oct.

8,060

8,060

8,500

7,430 

7,430

7,640 

7,230

6,830

6,830

6,830

6,270

6,830

7,030

 7 AQfl

7,230

7,850

7,430

7,230

8,280

7,640

8,720

8,720

8,950

9,180

8,060

8,500

8,500

8,500

8,280

8,060

8,060

Nov.

8,060

8,720

8,060

7,640 

7,640

7,850 

8,060

s Qifl

8,500

ft 9Sn

S (IfiO

7,430

6,450

6,070

e OQA

5,390

6,070

6,070

6,560

6,450

6,830

7,030

7,230

7,030

7 030

7,030

6,830

6,830

6,830

6,830

Dec.

6,830

6,830

6,830

7,030 

7,230

7,230 

7,230

6,830

6,450

6,090

6,090

ft fi40

6,450

6,090

5,560

3,840

3, -600

3,480

3,960

Feb.

-------

A OKft

4,220

3,960

3,960

4,090

4,220

4,350

4,490

6,070

0,390

5,070

4,630

Mar.

4,490

4,350

3,480

4,770 

6,070

6,070 

6,070

6,390

6,560

6,730

5,560

5,910

5,730

5,660

5,560

6.070

6,070

5,390

5,560

6,830

7 030

6,830

6,450

6,450 "7 <un

7,030

8,060

8,600

8,500

9,420 in nnrt

Apr. ,

13,400

12,900

13,400

13,700 

13,700

14,600 

14,600

15,200

16,100

17,300

17,300

18,600

18, 300

17 300

17,000

15,800

16,800

14,900

13,700

13,400

13,200

12,900

12,900

12,600

12,300

12,300

12,000

12,000

11,800

11,500

May.

11,500

11,200

10,900

10,700 

9,910

9,660 

9,660

9,180

8,950

8,500

8,280

8,060

8,280

7 ftdfl

8,280

7,850

7,860

7,640

8,500

^8,280

8,060

8,060

8,500

9,180

7,850

7,850

7,640

7,850

8,280

9,660

10,900

June.

12,000

14,000

14,900

14,900 

14,300

14,300 

14,600

16,100

16,400

16,700

17,900

18,300

18,300

17,900

18,600

19,500

18,900

17,600

17,600

17,300

16,400

16,800

14600

13,400

12,300

11,500

11,800

10,900

9,420

8,280

July.

7,850

7,640

7,640

7,850 

7,230

7,850 

7,640

8,280

8,280

8,280

7,850

7,850

7,430

7,430

7,850

7,430

7,430

7,430

7,030

6,830

7f030<

6,830

6,830

6,090

6,090

5,910

6,090

6,640

7,030

6,830

6,450

Aug.

5,730

5,560

5,380

5,070 

5,390

6,070 

4,770

3,960

4,490

4,220

4,090

4,090

4,090

4,350

3,980

4,350

4,770

4,350

4,770

4,630

4,490

4,220

4,350

3,960

4,350

6.660

4,490

4\350

3,960

.3,960

4,090

Sept.

3,960

4,220

3,960

3,480 

3,360

3,360

3,840

3,600

4,090

3,720

3,840

3,600

3,600

A OKA

4,220

4,920

0,5bO

5,910

6,070

5,230

ft fiitn

7,430

6,830

,6,450

6,270

6,090

0,010

5,910

5,730

5,390

NOTE. Stage-discharge relation affected by ice Dec. 20 to Feb. 9 and Feb. 19-25; discharge not deter-, mined.

Monthly discharge of Mississippi River at St. Paid, Minn., for the year ending

Sept. SO, 1921.

[Drainage area, 35,700 square miles.]

Month.

October. ___________________

April........ .._. _._...__._._

May _____________________

June _____________________ July .-.-. ........ . ....

August ______________________ September _ . _ . _ . ____________

Discharge in second-feet.

Maximum.

9,180 

8,950 

7,230 

12,000 

18,600 

11,600 

19,500 

8,280 

6,730 

7,430

Minimum.

6,270 

6,070 

3,480 

3,480 

11,500 

7,640 

8,280 

6,910 

3,960 

3,360

Mean.

7,780 

7,040 

6,020 

6,230 

14,400 

8,860 

15,100 

7,260 

4,540 

4,880

Per square 

mile.

a 218 

.197 

.169 

.175 

.403 

.248 

.423 

.203 

.127 

.137

Run-off in 

inches.

a 25

.22 

.12 

.20 

.45 

.29 

.47 

.23 

.15 

.16

MINNESOTA EIVEE HEAR MONTEVIDEO, MINN.

LOCATION. In sec. 17, T. 117 N., R. 40 W., at highway bridge 1 mile south of 

Montevideo, Chippewa County, and 500 feet below mouth, of Chippewa 

 River.

DRAINAGE AREA. 6,300 square miles.

RECORDS AVAILABLE. July 22, 1909, to September 30, 1921.

GAGE. Chain gage attached to upstream handrail of bridge, near left bank; 

read by Esther Hendricks. Datum of gage lowered 2 feet September 16, 

1909, and 1 foot more July 29, 1910, to avoid negative readings. All gage 

heights referred to latest datum.
46 SURFACE WATER SUPPLY, 1921, PAKT

DISCHARGE MEASUREMENTS. Made from upstream side of bridge.

CHANNEL, AND CONTROL,. Bed composed of heavy gravel and sand; fairly permanent. There is a slight rapids just below gage, but the control section is not 

well defined. Banks are of medium height and will be overflowed at a stage 

of about 14 feet.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 8.15 feet in 

afternoon of April 9 (discharge, 1,760 second-feet); minimum stage, 1.80 feet 

in afternoon of August 24 (discharge, 51 second-feet).

1909-1921: Maximum stage recorded, about 18.85 feet June 25, 1919 (discharge, about 22,000 second-feet); minimum discharge recorded, 6.8 secondfeet February 9, 1912, by current-meter measurement.

ICE. Stage-discharge relation seriously affected by ice.

REGULATION. No regulation on Minnesota River above station. Regulation of 

Chippewa River at plant of Chippewa Milling Co., in Montevideo, causes 

a slight fluctuation in stage of Minnesota River at gage.

ACCURACY. Stage-discharge relation changed slightly during the winter; affected 

by ice December 17 to March 20. Standard rating curve used March 21 

to September 30 fairly well defined; parallel curve used October 1 to December 16. Gage read to hundredths twice daily except during period December 28 to March 20, when it was read about three times weekly. Daily 

discharge ascertained by applying mean daily gage height to rating table 

except for period of ice effect, for which discharge was not determined on 

account of insufficient data. Records good.

The following discharge measurement was made by S. B. Soul6: 

September 14, 1921: Gage height, 2,40 feet; discharge, 106 second-feet.

Daily discharge, in second-feet, of Minnesota River near Montevideo, Minn., for the 

year ending Sept. 30, 1921.

Day.

1 

2 .

3.-. ... ... .... ...

4. 

5 

6 . 

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

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

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

10 

11... ...... .

12 

13 

14 

IS....... . ...

16 

17 

18 . 

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

20 

21 

22 

23 

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

25 ..

26 . ..

27. 

28 

29 

30 

31 

Get.

675

619

ftl»

592

566

514

514

514

488

488

462

462

488

514

540

540

540

540

514

514

514

540

540

540

566

566

540

514

514

540

Nov.

540

566

566

566

566

566

566

566

566

566

592

619

592

703

675

619

566

540

540

514

488

488

462

488

514

540

540

540

540

Dee.

514

540

540

566

592

592

592

592

619

619

592

566

540

540

566

Mar.

731.

619

566

703

788

788

731

592

703

876

998

Apr.

1,160

1,270

1,270

1,300

1,340

1,450

1,530

1,650

1,740

1,690

1,610

1,610

1,610

1,610

1,570

1,530

1,450

1,410

1,300

1,300

1,230

1,270

1,270

1,200

1,270

1,290

1,230

1,200

1,130

1,060

May

1,030

1,060

1,030

1,030

967

906

906

817

788

788

759

759

788

817

788

731

703

675

647

675

675

675

647

619

619

502

392

619

540

514

462

June

462

462

488

462

436

436

410

410

410

410

410

410

410

462

514

514

514

514

488

462

462

462

410

410

362

316

316

316

316

316

July

316

294

264

234

244

216

216

225

234

234

198

198

180

171

154

146

146

146

154

154

146

146

138

138

146

154

162

162

146

138

123

Aug.

108

103

99

90

83

88

89

86

76

64

62

60

62

67

68

62

61

61

61

59

59

50

57

52

53

58

63

66

67

68

71

Sept.

R9

55

54

57

59

61

64

65

68

71

78

87

105

123

146

180

225

294

316

410

462

468

514

514

540

040

514

488

462

410
UPPER MISSISSIPPI EIVER BASIF. 47

Monthly discharge of Minnesota River near Montevideo, Minn., for the year ending

Sept. SO,

[Drainage area, 6,300 square miles.]

Month.

October ____________________

November _____________ . _ ..

December 1-16 .. _______________

March 21-31 .- .. _.-....__..-.....___._.

April................................ _ . ..

May.... . _________________ ..

June....- _ __ _ __ . ._

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

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

Discharge in second-feet.

Maximum.

675 

703 

619 

998 

 1,740 

1,060 

514 

316 

108 

540

Minimum.

462 

462 

514 

566 

1,060 

462 

316 

123 

52 

54

Mean.

639

559 ' 

574 

796 

1,380 

749 , 

426 

185 

70.4 

250

Per square 

mile.

0.0856 

: .0887 

. , . 0911 

.117 

.219 

.119 

.0676 

.0294

.0112 

. 0397

Run-off in 

inches.

0.10 

.10 

.05 

.05 

.24 

.14 

.08 

.93 

.01 

.04

MINNESOTA EIVEB NEAE MANKATO, MINN,

i

LOCATION. In sec. 14, T. 108 N., R. 27 W., at Sibley Park, 2 miles above center 

of Mankato, Blue Earth County, and 1,000 feet below mouth of Blue Earth 

River.

DRAINAGE AREA. 14,600 square miles.

RECORDS AVAILABLE. May 20, 1903, to October 19, 1921, when station was 

discontinued.

GAGE. Chain gage on right bank of river; read by Clarence Staley, observer 

for the Weather Bureau. The gage support is a fairly substantial cantilever 

structure, supported by two heavy posts resting in concrete footings; settling 

somewhat; constructed and maintained by United States Engineer Corps. ,

DISCHARGE MEASUREMENTS, Made from new concrete highway bridge in center 

of Mankato 2 miles below gage, by wading a short distance below gage, or 

at extreme high stages, b'y boat near gage, ,

CHANNEL AND CONTROL. Bed composed of sand and light gravel; shifts during 

high stages. Banks moderately high and not subject to overflow, except at 

stages above gage height 15 feet. Control not well defined.

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

1920, to October 19,1921, 5.9 feet May 30,1921 (discharge, 4,910 second-feet); 

minimum stage recorded, 0.3 foot September 7, 1921 (discharge, about 

300 second-feet).

1903-1921: Maximum stage recorded, 21.2 feet June 26, 1908 (discharge, 

43,800 second-feet); minimum discharge recorded, 89 second-feet, August 

31 to September 2, 1911.

The highest known stage of this river occurred in 1881, and is shown in 

Mankato by a well-marked line about 27 feet above zero of present gage 

(discharge, estimated 65,000 second-feet).

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

REGULATION. The nearest dam on Minnesota River is at Minnesota Falls, 140 

miles upstream. A dam on Blue Earth River at Rapidan, a few miles 

above the. mouth, controls the flow of that river, which is about 20 per cent 

of the flow at the Mankato station, and produces considerable daily fluctuation at the gage, amounting at times to over 1 foot.
48 SURFACE WATBE SUPPLY, 1921, PAET T.

ACCTTBACT. Stage-discharge relation probably not permanent, although it has 

been assumed permanent on basis of the single discharge measurement obtained, which substantiates the 1920 rating curve reasonably close. Rating 

curve considered poorly defined on account of probable changes in stagedischarge relation not defined by discharge measurements. Gage read to 

tenths once daily. This gage reading does not represent accurately the 

mean daily stage on account of fluctuation caused by artificial regulationDaily discharge ascertained by applying daily gage height to rating table. 

Records probably poor.

COOPERATION. Gage-height record furnished by the Weather Bureau.

The following discharge measurement was made by S. B. Sould: 

September 15, 1921: Gage height, 0.66 foot; discharge, 406 second-feet.

Daily discharge, in second-feet, of Minnesota River near Mankato, Minn., for the 

period Oct. 1, 1920, to Oct. 19,

Day.

1.... _ .... ____

2. ___ ..... .......

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

4 _ . __ ...........

5 ___________

6 _ ........ ....... .

T. ....... ... ... .... .

8- __ ... ...

9., _ . _ . ____ ..

10.- .-.,... ....

11 _ . ____ . .......

12 _____ . _ . __

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

14..:.. _______ .

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

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

17 ________ . ....

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

19...... _______ .

20 ... ...

21........ ___ .....

22.. __ . _ ... .....

23. ..

24. __ .... ..........

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

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

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

28 __ ....... _ .....

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

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

31... 

Oct.

1,020

1,020

1,140

1,140

1,140

1,080

1,080

1,080

1,140

1,080

1,020

1,020

1,020

1,080

1,020

1,080

1,020

1,020

1,020

1,020

1,140

1,080

1,080

1,200

1,260

1,380

1,320

1,320

1,260

1,320

1,320

Nov.

1,200

1,320

1,380

1,260

1,200

1,140

1,320

1,380

1,440

1,510

1,510

1,440

1,440

1,510

1,510

1,380

1,440

1,440

1,380

1,380

1,380

1,440

1,440

1,510

1,510

1,440

1,440

1,580

1,510

1,440

Mar.

1,790

1,870

1,870

1,790

1,790

1,870

1,-870

1,950

1,790

1,790

1,720

1,650

1,720

1,720

1,580

1,440

1,440

1,380

1,320

1,380

1,260

1,200

1,260

1,260

1,320

1,320

1,320

1,260

1,320

1,790

1,790

Apr.

2,560

2,840

2,940

2,940

2,740

2,650

3,040

3,240

3,240

3,350

3,140

3,240

3,240

3,240

3,140

3,140

2,840

2,650

2,380

1,870

2,030

2,030

1,870

1,720

1,650

1,580

1,720

1,870

1,870

2,030

May.

1,950

2,030

2,110

2, 110

2,030

1,950

1,870

1,790

1,790

1,870

1,870

1,950

1,950

1,950

1,720

1,580

1,580

1,650

1,650

1,720

1,580

1,650

1,720

1,720

1,790

1,870

1,950

2,740

3,790

4,910

4,650

June.

4; 520

4,270

3,910

3,680

3,040

2,380

1,870

1,720

1,650

1,950

2,200

2,560

3,140

3,570

3,570

2,940

2,560

1,950

2,200

2,110

I>790

1,720

1,720

1,580

1,510

1,380

1,200

1,140

1,140

1,080

July.

840

840

720

660

660

720

780

840

780

900

840

780

780

780

720

720

660

660

600

660

550

500

450

450

450

500

500

500

500

500

450

Aug.

450

500

500

500

500

450

400

400

400

450

400

350

350

350

350

350

400

400

400

500

350

300

300

300

300

350

300

350

350

400

350

Sept.

300

300

300

300

300

300

250

300

300

400

400

400

400

500

400

500

650

1,020

1,320

1,260

1,140

1 020

flfiO

840

840

840

780

, 780

720

780

Oct.

720

840

840

900

900

S4A

780

780

720

720

660

660

660

720

660

660

600

660

660

Monthly discharge of Minnesota River near Mankato, Minn., for the period 

Oct. 1, 1920, to Oct. 19, 1921.

[Drainage area, 14,600 square miles.]

Month.

1920.

1921. 

MarchJuly. ...................................

September ___________________

October 1-19... _ . __ . __ ................

Discharge in second-feet.

Maximum.

1,380 

1,580

1,950 

3,350 

4,910 

4,520 

900 

500 

1,320 

900

Minimum.

1,020 

1,140

1,200 

1,580 

1,580 

1,080 

450 

300 

250 

600

Mean.

1,130 

1,410

1,580 

2,560 

2,110 

2,340 

655 

389 

617 

736

Per square 

mile.

0.0774 

.0966

'.108 

.175 

.145 

.160 

.0449 

.0266 

.0423 

.0504

Run-off in 

inches.

0.09 

.11

.12 

.20 

.17 

.18 

,05 

.03 

.05 

.04
'TOPPER- MISSISSIPPI ItlVEK BASIF. 49

ST. CKOIX RIVER AT SWISS, WIS,

LOCATION. In sec. 33, T. 42 N., R. 15 W., at highway bridge near post office 

of Swiss, Burnett County, 2 miles above point where St. Croix River becomes 

boundary line between Wisconsin and Minnesota, and 10 miles northeast of 

Danbury, Wis., on Minneapolis, St. Paul & Sault Ste. Marie Railway. 

Namakagon River enters from left 3| miles above station.

DRAINAGE AREA. 1,550 square miles (measured on map issued by Wisconsin 

Geological and Natural History Survey, edition'of 1911; scale, 1 inch=6 

miles).

RECORDS AVAILABLE. March 13, 1914, to September 30, 1921.

GAGE. Chain gage on downstream side of highway bridge; installed May 16, 

1918; read by Capt. Richard Goldschmidt. Prior to May 16, 1918, a castiron staff gage bolted to concrete pier at left end of bridge was used. Both 

gages at same datum.

DISCHARGE MEASUREMENTS. Made from downstream side of bridge.

CHANNEL AND CONTROL. Bed composed of gravel; smooth. Growth of aquatic 

plants during summer may cause a small amount of backwater at gage. 

Left bank high and not subject to overflow; right bank of medium height 

and may possibly be overflowed 'during extremely high water.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 2.78 feet at 

7.05 a. m. April 8 (discharge, 2,630 second-feet); minimum stage recorded, 

0.58 foot at 7.30 a. m. and 6.12 p. m. July 1 (discharge, 690 second-feet). 

_ > 1914-1921: Maximum s^age recorded, 6.73 feet April 22, 1916 (discharge 

8,480 second-feet); minimum stage recorded same as for 1921.

ICE. Stage-discharge relation seriously affected by ice.

REGULATION. None.

ACCURACY. ^Stage-discharge relation practically permanent except as affected 

by ice and by growth of aquatic plants. Standard rating curve well defined; 

was used direct October 1 to April 30, except for periods of ice effect; indirect method for shifting control used May 1 to September 30. Gage read 

to quarter-tenths twice daily except during winter when it was read every 

other day. Daily discharge ascertained by applying mean daily gage 

height to rating table except for periods for which shifting-control method 

was used, and except for periods of ice effect for which it was ascertained as 

indicated in footnote to daily-discharge table. Open-water records prior 

to winter period, good; thereafter, fair; winter records, fair.

Discharge measurements of St. Croix River at Swiss, Wis., during the year ending

Sept. SO, 1921.

Date.

Oct. 21

Jan. 8

Made by 

D. W. Roberts... ......

Q. F. Bittenberg. ......

Gage 

height.

Feet. 

1.51

"2.08

Discharge.

Sec.-/t. 

1,440

967

Date.

Feb. 10

Aug. 20

Made by 

O. F. Eittenberg... ....

A. O. Olson ______

Gage 

height.

Feet. Z14

».86

Discharge.

See.-ft. 

798

844

 Stage-discharge relation affected by ice.

* Stage-discharge relation affected by growth of aquatic plants.
50 SITES'ACE WATER SUPPLY, 1921, PAET V.

Daily discharge, in second-feet, of St. Croix River at Swiss, Wis., for the year ending

' Sept. SO, 1921.

Day.

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

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

3.. 

4 

5 _ ...... _ 

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

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

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

9. __ ........

10 

II.... . ..,

12 

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

14 

15 _ ....

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

17 

18 

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

20 ..

21. __

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

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

24.. ___ .......

25 

26 

27 

28 

29 .......

30 _

31 

Oct.

905

905

870

870

870

870

870

870

840

840

870

870

870

1,130

1 9W

1,330

1,290

1,250

1,290

1,330

1,410

1,410

1,500

1,460

1,410

1,370

1 330

1,290

1,250

1,250

1,210

Nov.

1,210

1,290

1,290

1,330

1,330

1 Q3fi

1 9Qfi

1,250

1,250

1,170

975

810

750

750

7KA

780

oin

870

1,010

1,170

1,250

1,500

1,640

1,330

1,250

1,210

1,170

1,170

1,170

Dec.

1,210

1,210

1,250

1,250

1,250

1,170

1,090

1,010

1,090

1,210

1,250

1,170

1,130

1,090

(\An

940

QQK

910

ono

con

875

07/1

870

870

870

ft7ft

870

870

870

870

Jan.

890

910

940

945

855

ofift

960

965

940

900

sfin

820

785

770

755

745

7QK

735

, 735

770

800

840

QIT C

855

835

810

7QA

810

830

830

830

Feb.

830

830

830

835

830

800

785

770

760

800

810

ft 1ft

810

840

87fi

885

One

925

940

940

Q4n

940

fun

940

940

940

ftdfl

955

Mar.

970

980

995

1,010

1,010

1,010

1,010

1,010

1,010

1,010

1,010

1,010

1,010

1,010

1,010

1,050

1,130

1,210

1,330

1,590

1,370

1,210

1,170

1,170

1,170

1,250

1,370

1,500

1,590

1,720

1,680

Apr.

1,680

1,590

1,590

1,590

1,680

1 860

2,330

2,630

2,630

2,430

2,430

2,430

2,330

2,230

9 (un

1,950

1,820

1,680

1..590

1/590

1,500

1,500

1,500

1,460

1,410

1,410

1,690

2,040

2,330

2,430

May.

2,430

2,230

2,130

2,040

1,820

1,720

1,540

1,460

1, 370

1,330

1,290

1,290

1,370

1,500

1,540

1,590

1,540

1,460

1,460

1,370

1,290

1,250

1,210

1,170

1,130

1,090

1,090

1,050

1,090

1,130

1,210

June.

1,210

1,170

1,130

1,050

1,010

1,130

1,540

1,680

1,720

1,640

1,540

1,460

1,330

1,210

1,130

1,090

1,010

940

905

870

840

870

940

905

870

840

780

780

750

725

July.

7nn

750

780

810

870

940

975

940

905

870

810

780

750

810

R7n

905

QTfi

940

905

810

780

810

840

870

940

940

1,010

1,090

1,170

1,090

1,010

Aug.

940

905

905

870

840.

810

780

' 780

750

750

750

750

905

975

(MA

870.

870

870

870 Kdn

sin

810 fiin

780

750

840

Qrtfi

870

870

905

905

Sept.

870

840

810

780

750

715(1

<7OK

750

. 750

750

750

725

750

840

«05

905 Qn>»

870

870

975

1,250

1,330

1,250

1,170

1,130

1,090

1,050

1,010

905

870

NOTE. Stage-discharge relation affected by ice Nov. 13-19, and Dec. 16 to Mar. 21; discharge ascertained 

by means of gage heights, two discharge measurements, observer's notes, and weather records. Gage read 

every other day during period Dec. 19 to Mar. 20.

Monthly discharge of St. Croix River at Swiss, Wis., for the year ending Sept. 80,

[Drainage area, 1,550 square miles.]

Month.

January

May..... _

July 

Discharge in second-feet.

Maximum.

1,500 

1,640 

1,250 

965 

955 

1,720 

2,630 

2,430 

1,720 

1,170 

975 

1,330

2,630

Minimum.

840 

750 

870 

735 

760 

970 

1,410 

1,050 

725 

700 

750 

725

700

Mean.

1,130 

1,150 

1,020 

845 

869 

1,180 

1,910 

1,460 

1,100 

892 

846 

911

1,110

Per square 

mile.

0.729 

.742 

.658 

.545 

.561 

.761 

1.23 

.942 

.710 

.575 

.546 

.688

.716

Run-on" in 

inches.

0.84 

.83 

.76 

.63 

.58 

.88 

1.37 

1.-09 

.'79 

.66 

.63 

.66

9.72
UPPER MISSISSIPPI RIVEB BASI3T.

ST. CBOli RIVER NEAR ST. CROIX FAI1S, WIS.

LOCATION. In sec. 18, T. 34 N., R. 18 W., at power plant of Minneapolis General 

Electric Co., on Wisconsin side of river near St. Croix Falls, Polk County, 

50 miles above mouth of river. Apple River, draining an area wholly in 

Wisconsin, enters from* left about 20 miles below station; Snake River, 

draining an area in Minnesota, enters from right 35 miles above station.

DRAINAGE AREA. 5,930 square miles.

RECORDS AVAILABLE. January 1, 1910, to September 30, 1921. Data for 1903 

published in Water-Supply Paper 98, pages 176-177, under "St. Croix 

River near Taylors Falls, Minn." Daily and monthly discharge, January 

10, 1902, to June 30, 1905, and monthly estimates, July, 1905, to December, 

1909, published in the "Report of water-resources investigations of Minnesota, 1909-1912," by the Minnesota State Drainage Commission.

DISCHARGE. Determinations of discharge based on kilowatt output of dynamo 

and exciters, plus flow over dam and spillway, considered as a weir.

EXTREMES OF DISCHARGE. Maximum mean daily discharge recorded during 

year, 11,500 second-feet April 9; minimum mean daily discharge recorded, 

703 second-feet December 19.

1902-1921: Maximum discharge recorded, 35,800 second-feet March 26, 

1920; minimum discharge recorded, 75 second-feet July 17, 1910 (caused 

by regulation).

REGULATION. Low-water flow controlled by operation of gates of power plant 

and by storage and release of water at Never's dam several miles upstream.

ACCURACY. Records probably reliable but have not been checked, nor have 

discharge measurements been made by engineers of the United States 

Geological Survey.

COOPERATION. Records of daily discharge furnished by Minneapolis Genera,! 

Electric Co.

Daily discharge, in second-feet, of SL Croix River near St. Croix Falls, Wis., for the 

year ending Sept. SO, 1921.

Day.

I.... ..........

2 _ ........

3. __ ........

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

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

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

7.. 

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

9 

10 

11 

12.. 

13 

14 

15 

16. _ ... __ ..

17 _ ..... .

18 

!».. __ ., 

20 

21. 

22 

23 

24 

25 _ .

26 

27 

28..-, 

29 

30 

31 . 

Oct.

2,120

2,730

2,320

2,210

1,830

2,070

1,850

1,740

2,080

2,760

2,240

2,050

2,090

2,200

2,640

3,800

1,500

3,160

4,200

4,120

4,630

4,900 i sun

4,090

3,800

4,680

4,820

3,680

3,510

3,560

2,040

Nov.

3,330

3,480

3,900

3,990

3,730

3,720

3,340

3,580

4,190

3,940

2,980

2,880

2,250

878

2,420

2,400

2,500

2,770

3,280

2,740

2,700

3,460

3,140

2,460

3,490

3,620

3,470

2,360

3,580

3,710

Dec.

3,670

3,610

3,480

2,780

2,270

3,480

3,580

3,000

2,130

3,210

3,010

1,150

2,690

3,280

2,580

2,690

2,260

1,730

703

1,760

1,770

1,980

1,730

1,470

1,030

1,090

2,050

2,050

3,030

2,920

2,330

Jan.

1,020

1,630

2,480

2,600

2,360

2,390

2,320

2,580

1,100

2,440

2,100

1,760

2,180

2,170

1,360

1,260

2,340

2,06fr

2,100

1,470

1.870

1,620 i lift

1,680

2,390

2,590

2,090

2,150

1,560

839

2,170

Feb.

2,290

2,350

2,180

1,830

1,190

2,070

1,850

2,160

2,240

2,080

1,930

1,350

1,290

1,940

2,210

2,340

2,140

2,290

1,730

1,410

2,630

2,050

1,720

2,150

2,230

1,610

1,470

2,380

Mar.

2,320

2,400

2,020

2,320

2,880

1,220

2,050

2,370

2,520

2,510

2,420

2,120

1,610

2,560

2,520

2,480

2,520

.2,740

3,370

2,470

3,260

3,030

3,560

3,600

3,490

3,040

2,560

3,530

4,200

4,690

4,830

Apr.

5,210

5,370

4,530

4,140

4,860

6,510

7,610

10,400

11,500

11,400

8,660

8,870

8,030

8,520

8,430

7,350

6,660

5,860

4,320

4,460

4,370

4,480

4. Aftfl

5,000

5,320

5,460

4,500

4,500

5,700

6,320

May.

6,250

5,540

5,800

5,240

5,830

4,560

4,380

2,960

4,710

4,390

4,450

4,520

4,250

2,160

2,220

3,500

4,410

3,940

3,950

4,020

3,070

2,280

3,630

4,370

4,080

3,510

3,500

3,390

1,940

1,640

2,960

June.

3,510

4,360

4,400

4,390

2,830

3,590

4,310

4,260

5,440

8,410

7,950

4,370

4,890

4,490

4,500

4,510

4,380

4,100

2,030

3,400

2,840

2,350

2,250

2,050

2,420

1,600

1,890

2,260

1,690

1,780

July.

1,660

1,530

1,420

1,710

1,510

2,140

2,340

1,990

2, 150

1,590

1,980

1,640

1,990

2,720

1,550

1,790

1,580

1,980

2,000

2,060

1,800

1,740

1,680

1,640

1,840

1,810

1,890

1,680

1,820

1,620

1,710

Aug.

2,100

1,440

1,940

1,860

1,740

1,880

1,170

1,820

2,280

1,720

1,300

1,680

1,540

1,540

1,940

1,940

1,800

1,730

1,770

1,440

1,220

2,010

2,130

1,520

1,720

2,200

1,460

1,700

1,680

1,890

1,180

Sept.

2,170

1,590

1,800

1,660

1,520

2,000

2,440

1,630

1,610

1,530

1,400

2,040

1,880

1,820

1,860

2,440

1,860

1,240

2,410

2,700

2,840

2,770

2,950

2,860

1,880

2,620

2,700

2,630

2,320

2,680
Monthly discharge of St. Croix River near St. Croix Fulls, Wis., for the year ending

Sept. SO, 1921. -

[Drainage area, 5,930 square miles.]

Month.

October .... ___ .. ___________

December _______ _________

January... __________________

March ____ _____ ___________

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

May. _ -- ___ ... ..........

June.... ___________ _______

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

AugUSt __ ______ . ________ ; ____ . .......

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

The year ____ ......................

Discharge in second-feet.

Maximum.

4,900 

4,190 

3,670 

2,600 

2,630 

4,830 

11,500 

. 6,250 

8,410 

2,720 

2,280 

2,950

11,500

Minimum.

1,500 

878 

703 

839 

1,190 

1,220 

4,140 

1,640 

1,600 

1,420 

1,170 

1,240

703

Mean.

3,040 

3,140 

2,400 

1,940 

1,970 

2,810 

6,430 

3,910 

3,710 

1,820 

1,720 

2,130

2,920

Per square 

mile.

0.513 

. 530 

.405 

.327 

.332 

.474 

1.08 

.659 

.626 

.307 

.290 

.359

.492

Run-oft in 

inches. 

0.59 

.59 

.47 

.38 

.35 

.55 

1.20 

.76 

.70 

.35 

 - . 83 

.40

6.67

NOTE. Computed by U. S. Qeol. Survey from records of daily discharge furnished by Minneapolis 

General Electric Co.

2TAMAKAGON RIVER AT TREGO, WIS.

LOCATION. In sec. 35, T. 40 N., R. 12 W., at Chicago, St. Paul, Minneapolis 

& Omaha Railway bridge at Trego, Washburn County, 20 miles above confluence of Namakagon and Totogatic rivers.

DRAINAGE ABE A. 420 square miles (measured on map issued by, Wisconsin 

Geological and Natural History Survey, edition of 1911; scale, 1 inch = 6 

miles).

RECORDS AVAILABLE. March 11, 1914, to September 30, 1921. v

GAGE. Enameled staff fastened to retaining wall, left bank of river, just above 

railroad bridge; read by G. E. Krenz and Patrick Lawton.

DISCHAEGE MEASUREMENTS. Made from lower chords of railroad bridge or by 

wading.

CHANNEL AND CONTROL. Bed composed of coarse gravel; free from vegetation; 

practically permanent. Banks medium high and not subject to overflow. 

Small island downstream with rapids on either side forms the control.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 2.30 feet at 

11 a. m. April 10 (discharge, 803 second-feet); minimum discharge, estimated 

250 second-feet January 11 and 12 (stage-discharge relation affected by ice), 

1914-1921: Maximum stage recorded, 3.25 feet June 30, 1920 (discharge, 

1,490 second-feet); minimum discharge, estimated 235 second-feet December 

19, 1916 (stage-discharge relation affected by ice).

ICE. Stage-discharge relation seriously affected by ice.

ACCURACY. Stage-discharge relation permanent except as affected by ice; 

Rating curve well defined between 330 and 1,330 second-feet. Gage.read 

to quarter-tenths once daily, except during winter when it was read every 

other day. Daily discharge ascertained by applying daily gage height to 

rating table except for periods of ice effect, for which it was ascertained as 

indicated in footnote to daily-discharge table. Open-water records excellent! 

winter records fair.
UPPEB MISSISSIPPI ET7BE BASIN.

Discharge measurements of Namakagon River at Trego, Wis., during the year ending

September SO,

Date.

Oct. 20

Jan. 7

Made by 

D. W. Roberts.........

G. F. Eittenberg .......

Gage 

height.

Feet. 

1.77

02.55

Discharge.

Sec.-ft. 

462

262

Date.

Feb. 9

Aug. 19

Made by 

A. O. Olson ............

Gage 

height.

Feet. 

02.38

1.63

Discharge.

Sec.-ft. 

322

. 377

a Stage-discharge relation affected by ice.

Daily discharge, in second-feet, of Namakagon River at Trego, Wis., for the year 

ending September SO, 1981.

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....... _ ....

26 .

26 ..........

27.... __ .....

28 

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

30. ___ .......

31.. .....

Oct.

303

393

332

332

369

369

393

393

' 332

369

369

350

350

393

417

472

472

' 472

472

472

532

532

532

502

472

472

472

472

444

444

444

Nov.

444

472

472

472

444

444

444

444

444

444

417

393

385

370

370

380

390

415

445

445

444

444

444

444

417

. 417

417

417

417

444

Dec.

417

417

417

417

444

444

444

444

444

417

417

393

393

393

332

330

330

320

310

310

310

310

310

305

300

295

290

285 2sa

280

280

Jan.

280

285

280

280

270

265

260

256

255

255

250

250

260

265

265

265

270

275

280

285

290

295

290

285

280

280

280

285

290

295

300

Feb.

305

305

305

310

310

310

310

315

320

330

345

350

360

385

410

415

415

395

370

330

290

290

290

280

270

260

255

270

Mar.

290

290

290

280

270

280

290

290

300

310

310

320

330

350

369

369

369

417

444

472

472

444

444

444

444

472

630

, 698

630

597

597

Apr.

564

.532

532

532

JUU

597

630

630

630

803

768

733

698

664

630

597

597

564

564

532

532

532

532

502

502

502

597

698

803

803

May.

768

733

698

664

597

564

532

532

502

502

502

502

502

532

532

502

502

472

502

472

472

472

444

444

417

417

417

417

417

417

444

June.

444

417

417

417

417

393

502

532

502

502

472

472

444

417

393

369

369

369

350

350

332

350

350

332

,350

332

332

332

332

332

July.

320

320

320

332

332

350

369

369

369

350

350

332

332

417

417

417

417

393

369

350

332

360

369

350

350

350

472

532

472

444 417'

Aug.

393

393

417

393

369

369

369

360

350

350

369

350

417

417

393

369

369

417

393

369

369

350

350

350

332

350

369

369

.,369

369

369

Sept.

369

369

369

350

350

350

332

332

369

369

350

332

332

417

417

393

417

417

393

393

597

564

532

532

502

, 444

' 444

417

417

417

NOTE. Stage-discharge relation affected by ice Nov. 13-20 and Dec. 16 to Mar., 14; discharge ascertained 

by means of gage heights, two discharge measurements,- observer's notes, and weather records. Gage 

read every other day during period Dec. 24 to Mar. 12.

Monthly discharge of Namakagon River at Trego, Wis., for the year ending September 80, 1921, .

[Drainage area, 420 square miles.]

Month.

October.. . __________ . .............

March..... __________ . _______

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

May-.-. 

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

September. . ...

Discharge in second-feet. '

Maximum.

532 

472 

444 

300 

415 

698 

803 

768 

532 

532 

417 

597

803

Minimumj

" 332 

370, 

280 

250, 

255 

270 

502 

417 

332 

320 

332 

333

250

Meanl

427 

428 

357 

, 275 

325 

404 

612 

513 

397 

376 

373 

410

408

Per square 

mile.

1.02 

1.02 

.850 

.656 

.774 

.962 

1.46 

1.22 

.945 

.895 

.888 

.976

, : -.971,

Run-off in 

.inches.

1.18 

1.14 

.98 

.76 

.81 

1.11 

1.63 

1.41 

1. 05 

1.03 

1.02 

1.09

; U 21
54 SURFACE WATER SUPPLY, 1921, PABT V. 

APPLE RITEB HEAB SOMBBSBY, WIS,

LOCATION. In sec. 21, T. 31 N., R. 19 W., at power plant of St. Croix Power 

Co., 2 miles above mouth of river and 3| miles below Somerset, St. Croix 

County.

DRAINAGE AKBA. 550 square miles (measured on map issued by Wisconsin 

Geological and Natural History Survey, edition of 1911; scale, 1 inch =6 

miles).}

RECORDS AVAILABLE. January, 190,1, to September 30, 1921.

GAGE. Vertical staff gage; readings not used in determination of flow.

DISCHARGE. The discharge of the turbines in second-feet corresponding to the 

number of kilowatts is determined fot each hour during day from a record 

of the number of wheels in operation and the load; the sum of these figures 

divided by 24 gives the average discharge through the turbines. To this 

quantity is added the leakage through the average number of wheels idle 

each day, the sum giving daily flow through power house. Water is seldom 

wasted over spillway of the dam, but when it is the quantity is computed from weir formulas and added to the flow through plant. There is 

a constant leakage through the gate and flashboards amounting to 3 

second-feet. This quantity has not been taken into consideration in computing the records,

EXTREMES OP DISCHARGE. Maximum daily discharge recorded during year, 671 

second-feet March 29; minimum daily discharge recorded, 20 second-feet 

June 26.

1904 1921: Maximum daily discharge recorded, 2,280 second-feet in 

June, 1905; minimum daily discharge, 20 second-feet June 26, 1921. Owing 

to regulation minimum discharge has no bearing on natural minimum flow. 

No record of maximum and minimum stages are available for the period 

1901 to 1903.

REGULATION. There are a number of power plants above the station, but their 

pondage is small, and though the daily flow may be controlled to some 

extent, the mean monthly flow probably corresponds closely to the natural 

flow.

ACCURACY. From 1901 to 1909 discharge through the plant was determined 

from tables computed from data collected and tests made on one of the 

turbines at flume of Holyoke Water Power Co., Holyoke, Mass. In the 

summer of 1909 engineers of St. Croix Power Co. made tests on the water 

flowing through all wheels as actually installed, by means of a sharp-crested 

weir 710 inches long located about 60 feet below power house. These tests 

gave results about 3 per cent larger than the Holyoke tests, and tables based, 

on them have been used in determining discharge through plant from 1909 

to September, 1920. In May, 1914, a series of current-meter measurements 

were made by the Wisconsin Railroad Commission and United States Geological Survey, and a rating curve for the tailrace was developed. Twelve 

tests were then run with different wheels and loads. It was found that discharge as determined by the current meter and discharge as computed by 

the company agreed very closely, the percentage difference for the twelve tests 

ranging from 6.4 per cent to +1.8 per cent, with an average of 2.0 per 

cent, the discharge as determined by the company being 2 per cent less than 

as determined by current meter. During 1919 three current-meter measurements were made to check the accuracy, under present conditions, of the 

data obtained in May, 1914. These measurements showed that powerplant records were about 5 per cent less than the measured discharge, due 

probably to increased leakage through the wheels. The records as published for 1919 and 1920 are the power-plant records increased by 5 per cent.
UPPER MISSISSIPPI EIVEE BASIN.

In September, 1920, another series «of tests was made by the company by 

means of a sharp-crested weir, from which the tables used in computing flow 

through the power house were corrected. The records below are published 

as furnished by the company, without correction.

COOPERATION. Records furnished by St. Paul Gas Light Co., of St. Paul, 

Minn., D. W. Flowers, engineer.

No discharge measurements were made at this station during the year.

Daily discharge, in second-feet, of Apple River near Somerset, Wis., for the year ending Sept. 80, 1921.

Day.

1. . ...

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

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

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

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

6.... . - _

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

8 . 

91... ...........

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

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

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

13 .

14 ...... ...

15 

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

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

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

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

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

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

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

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

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

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

26 

27 ..........

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

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

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

31... ___ ......

Oct.

309

298

217

228

226

249

236

229

297

216

230

243

232

275

289

361

373

318

320

349

434

407

344

297

316

294

343

247

286

365

200

Nov.

279

294

323

306

274

292

256

256

321

280

263

219

332

213

232

259

273

275

251

330

206

253

295

329

199

287

352

205

297

. 287

Dec.

260

261

269

354-

210

278

281

241 257

273

347

204

308

224

224

189

197

225

174

256

256

233

267

238

219

218

232

217

250

255

306

Jan.

185

254

246

253

295

310

286

278

176

277.

212

193

270

252

281

188

209

215

194

246

295

344

256

257

253

251

269

257

302

210

230

F«b. !

250

263

227

256

280

198

227

229

267

242

257

277

268

248

, 276

320

243

280

305

224

281

277

291

300

262

321

243

305

Mar.

355

329

287

303

295

239

261

307

282

278

272

293

283

271

* 290

354

292

293

350

443

459

437

343

366

405

400

589

664

671

394

573

Apr.

306

418

287

404

308

432

612

427

642

445

443

405

374

498

336

484

270

275

353

320

338

329

425

274

327

336

342

467

422

441

May.

441

515

439

539

414

398

391

311

392

322

383

340

840

356

292

341

343

371

355

380

402

249

303

326

331

253

290

377

218

232

274

June.

310

275

255

344

117

261

3S2

314

250

327

429

263

273

27S

238

227

271

335

179

210

224

225

222

492

60

20

223

213

229

196

July.

193

188

110

114

155

182

162

202

258

125

179

153

179

194

216

226

144

157

146

145

154

184

147

167

160

167

235

183

167

170

161

Aug.

285

131

154

156

160

170

180

160

160

137

214

187

178

130

143

127

151

177

197

194

155

175

186

129

227

221

324

96

200

229

235

Sept:

167

211

270

233

170

227

158

169

187

200

199

202

235

205

291

228

293

225

299

404

429

358

353

474

312

315

300

239

255

281

NOTE. See note under "Discharge" in station description for method by which these records were 

obtained.

Monthly discharge of Apple River near Somerset, Wis., for the year ending Sept. SO,

1921.

[Drainage area, 550 square miles.]

Month.

October... __________________

December ___________________

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

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

September..... _ ... ........................

Discharge in second-feet.

Maximum.

434 

352 

354 

344 

321 

671 

542 

539 

492 

258 

324 

474

671

Minimum.

200 

199 

174 

138 

198 

239 

270 

218 

20 

110 

96 

158

20

Mean.

291 

275 

249 

248 

265 

368 

388 

352 

254 

171 

177 

263

275

Per 

square 

mile.

0.529 

.500 

.453 

.451 

.482 

.669 

.705 

.640 

.462 

.311 

.322 

.478

.500

Run-off, in

inches.

0.61 

.56 

.52 

.52 

.50 

.77 

.79 

.74 

.52 

.36 

.37 

.53

6.79
56 SURFACE WATER SUPPLY, 1921, PART V.

KINNIKINKIC BI7ER BEAR EIVER FAILS, WIS,

LOCATION. In sec. 18, T. 27 N., R. 19 W., at Clifton Hollow Bridge, a quarter 

of a mile downstream from abandoned plant of Clifton Falls Power Co., 2 

miles above mouth of river, and 7 miles downstream from River Falls, 

Pierce County.

DRAINAGE AREA. 170 square miles (measured on map issued by Wisconsin 

Geological and Natural History Survey, edition of 1911; scale, 1 inch=6 

miles).

RECORDS AVAILABLE. October 23, 1916, to September 30, 1921, when station 

was discontinued.

GAGE. Gurley water-stage recorder with a. wooden well and shelter attached to 

downstream side of right-hand cushing bridge pier; inspected by Fred 

Lindenberger.

DISCHARGE MEASUREMENTS. Made from bridge or by wading.

CHANNEL AND CONTROL. Bed composed of rather heavy gravel and sand. 

Control is head of small rapids 150 feet below the gage; not permanent.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 5.7 feet at 

8 a. m. June 14 (discharge, about 410 second-feet); minimum discharge 

about 28 second-feet at 6 a. m. August 16.

1917-1921: Maximum stage recorded, 7.0 feet March 12, 1919 (discharge, about 3,560 second-feet); minimum stage, 1.62 feet at 5 a. m. August 

30, 1920 (discharge, 11 second-feet).

ICE. Stage-discharge relation affected by ice.

REGULATION.- Daily flow is regulated by three dams in River Falls about 7 

miles above station', the lower two of which are operated by the city of River 

Falls for municipal light and power purposes. The storage at these dams is 

relatively small and monthly flow is considered to be nearly the normal 

flow. The plant and dam of Clifton Falls Power Co., a quarter of a mile 

above station, are no longer operated.

ACCURACY. Stage-discharge relation changed considerably by deposition on 

control of silt washed out from behind abandoned dam of Clifton Falls 

Power Co.; affected by ice December 15 to March 15. .Standard rating 

curve poorly defined. Operation of water-stage recorder satisfactory except 

as noted in footnote to table of daily discharge. Daily discharge ascertained by means of the discharge integrator, which was operated on basis of 

the shifting-control method, except for period of ice effect and certain other 

periods, as noted in footnote to table of daily discharge. Records subject 

to considerable error owing to uncertainty in date and nature of shift in 

control.

Discharge measurements of Kinnikinnic River near River Falls, Wis., during the 

year ending Sept. SO,

Date.

Feb. 11 <*

Apr. 15..

Made by 

G. P. Rittenberg ___

Gage 

height.

Feet.

4.51

Discharge.

Sec.-ft. 

63

61

Date. Made by 

A. O. Olson ___ .

GJ 

heij

Ft 

4

ige 

jht.

et. 

43

Discharge.

Set.-ft. 

50

Stage-discharge relation affected by ice.
MISSISSIPPI I&VI& BASES'.

Daily discharge, in second-feet, of KinniTeinnic ttiver near River Palls, Wis., for the 

year ending Sept. $0, 1981,.

Day.

1 _ ___ _ _

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

3 __ .... _____ . ________ . ...

4......................,..... .....

5..-.-................... .........

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

7 . ,._. _ . _.. .. .

8-... .-...........................

9 __ . ___________ . __ ......

10 __ . _ . _____________ . ...

11 __ ................................

12. .- ...........................

13 __________________ ....

14 _ . ,. . ._. _ .

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

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

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

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

19.. __ .............. _ .............

20 _ ... . ___ ..............

21........... _ ......................

22..... _ ........... __ .............

23

24 ____________________ ..

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

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

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

28.

29 __ ................................

30... ... ._. . . _

31........ __ .......................

Oct.

96

85

75

70

68

82

80

86

78

Oft

74

74

76

85

82

76

90

90

103

100

92

101

76

79

82

80

76

73

83

70

7^

Mar.

78

65

67

66

130

132

120

83

71

71

82

85

88

80

9Q

66

Apr.

76

86

86

86

82

80

103

86

84

82

80

78

84

82

85

80

80

92

80

84

90

92

92

65

73

82

70

70

73

84

May.

71

90

80

76

75

76

82

- 73

87

89

82

80

87

75

64

90

93

82

80

83

84

84

85

80

72

69

66

63

60

76

162

Juntei

90

66

73

71

62

85

165

142

76

120

73

55

66

116

76

76

55

60

48

68

64-

62

62

58

53

48

60

01

58

60

July.

56

53

42

45

53

75

46

52

50

46

64

51

62

58

55

58

60

73

65

55

83

52

48

43

62,

67

63

58

66

53

40

Aug.

66

66

. 65

64

62

51

60

62

64

57

57

58

55

52

53

70

66

, -70

51

53

50

62

65

51

55

107

90

62

70

60

62

Sept.

64

77

74

55

70

73

65

74

78

73

60

72

78

73

66

70

66

53

52

60

42

61

64

v 53

62

67

64

63

60

60

NOTE. Water-stage recorder not operating satisfactorily Nov. 11-17; stage-discharge relation affected by 

ice and recorder not operating Dec. 15 to Mar. 15; discharge for the period NOT. 1 to Mar. 15 estimated as 

follows, by means of one discharge measurement, weather records, and comparison with flow of Apple 

Eiver near Somerset: Nov. 1-30, 85 second-feet; Dec. 1-31, 76 second-feet; Jam. 1-31, 70 second-feet; Feb. 

1-28, 75 second-feet; and Mar. 1-15, 90 second-feet. Recorder not operating satisfactorily Apr. 9-11, May 

21, 26-28, June 25, July 23, 30, Aug. 3-6 and 13; discharge interpolated.

Monthly discharge of Kinnikinnic River near River Falls, Wis., for the year ending

Sept. SO, 1921. : . «f ; >

[Drainage area, 170 square miles.]

Month.

October... _________ .' _______

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

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

July.......-.......................-. ...

August __________ . ________

September ___ . ___ . ____ . .......

Discharge in second-feet.

Maximum.

103

132 

103 

152 

165

75 

107

78

165

Mir^iTniiTn.

68

65 

65 

60 

48 

40 

50 

42

40

Mean.

82.1 

85.0 

75.0 

70.0 

75.0 

87.9 

82.2 

80.8 

74.3 

55.3 

60.2 

64.6

74.3

Per square 

mile.

0.483 

.500 

.441 

.412 

.441 

.517 

.484 

.475 

.437 

.325 

.354 

.380

.437

Run-off in 

inches.

0.56 

.56 

.51 

.48 

.46 

.60 

.54 

.55 

.49 

.37 

.41 

.42

6.95

NOTE. See footnote to table of daily discharge.
58 SURFACE WATER SUPPLY, 1921, PART V.

CHIPPEWA RIVER AT BISHOP'S BRIDGE, NEAR WINTER, WIS.

LOCATION. In sec. 23, T. 39 N., R. 6. W., at highway bridge 3 miles downstream 

from East Fork of Chippewa River, which enters from left, and 4 miles by 

road northwest of Winter, Sawyer County.

DEAINAGE AREA. 775 square miles (measured on map issued by Wisconsin 

Geological and Natural History Survey, edition 0f 1911; scale, 1 ineh=6 

miles).

RECORDS AVAILABLE. February 23, 1912, to September 30, 1921.

GAGE. Chain gage fastened to bridge; used since May 23, 1916; read by John 

Edberg. Gages previously used as follows: February 23, 1912, to January 

27, 1914, a wooden staff gage fastened to a wooden pier on right bank just 

above bridge; datum 3.44 feet above that of chain gage. January 27, 1914, 

to May 28, 1916, a vertical cast-iron staff gage fastened to same pier; at 

same datum as chain gage.

DISCHARGE MEASUREMENTS. Made from downstream side of highway bridge.

CHANNEL AND CONTROL. Bed composed of gravel; free from vegetation; seldom 

shifts. Control is head of rapids about 1,000 feet below gage. One channel 

at all stages. Banks not subject to overflow.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 7.16 feet at 

4 p. m. April 30 (discharge, 2,980 second-feet); minimum stage recorded, 

4.35 feet at 9 a. m. August 9 and at 4 p. m. August 12 (discharge, 287 secondfeet).

1912-1921: Maximum stage recorded, 9.56 feet April 22, 1916 (discharge, 

6,940 second-feet); minimum discharge, estimated 175 second-feet February 

17, 1917 (stage-discharge relation affected by ice).

REGULATION. Flow regulated to some extent by operation of storage reservoir 

on West Fork of Chippewa River in sec. 14, T. 41 N., R. 6 W., about 16 

miles above station. This reservoir has a capacity of 550 million cubic 

feet and is used in connection with reservoirs on Upper Flambeau River for 

the purpose of regulating the flow of Chippewa River.

ACCURACY. Stage-discharge relation practically permanent except as seriously 

affected by ice November 12-18, December 7, 8, and December 16 to 

March 25. Rating curve well denned between 270 and 6,800 second-feet. 

Gage read to hundredths twice daily except as indicated in footnote to 

daily-discharge table. Daily discharge ascertained by applying mean daily 

gage height to rating table except for periods of ice effect, for which it was 

ascertained by means of gage heights, three discharge measurements, 

observer's notes, and weather records. Open-water records excellent; 

winter records fair.

Discharge measurements of Chippewa River at Bishop's Bridge, near Winter, Wis., 

during the year ending Sept. S0l 1921.

Date.

Oct. 19

Made by 

D. W. Eoberts.. .......

Gage

Feet. 

4.81

"5.66

Discharge.

Sec.-ft. 

492

Date.

Feb. 8

Made by 

Q. P. Rittenberg __ ..

&,

Feet.

'5.57

 5.65

Discharge.

Sec.-ft. 

248

276

1 Stage-discharge relation affected by ice.
TJPPEB MISSISSIPPI EIVEB BASIN. 59

Daily discharge, in second-feet, of Chippewa River at Bishop's Bridge, near Winter, 

Wis., for the year ending Sept. SO, 1921.

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.

340

346

340

322

322

322

322

322

322

322

322

340

322

380

405

430

430

480

505

530

555

555

580

580

580

555

555

555

530

530

530

Nov.

505

530

530

630

530

, 630

530

530

530

530

480

430

380

380

380

380

380

380

4115

405

405

430

455

455

455

430

405

380

380

380

Dec.

380

380

405

405

430

405

380

380

380

380

360

405

360

405

380

360

340

340

320

320

305

305

305

3C5

285

285

270

270

270

270

270

Jan.

270

270

285

305

320

325

310

295

285

275

260

250

260

265

270

270

255

240

245

250

250

250

250

255

270

285

285

285

280

280

280

Feb.

285

280

280

280

275

*>7K

275

250

225

230

230

400

520

465

310

290

280

270

260

255

260

260

240

215

236

240

255

270

Mar.

280

285

205

305

295

286

290

295

270

305

340

360

380

430

530

640

790

1,150

1,350

1,570

1,250

960

1,200

1,400

1,860

1,800

Apr.

1,800

1,740

1,680

1,740

1 740

1,920

1,860

1,740

2,310

2,570

2, 570

2,310

2,050

1,620

1,150

960

870

830

1,050

1,000

750

830

830

750

1,100

1,520

2,440

2,840

2,980

May.

2,840

2,340

2,700

2; 570

9 1 Sft

i ^ft

1,400

1,350

1,250

1,100

915

830

830

790

640

580

580

610

640

640

610

580

580

580

610

505

455

430

480

June.

1,050

915

750

640

555

640

1,260

1,150

960

870

1,050

960

710

580

530

530

430

405

430

750

710

505

430

505

555

610

555

530

505

July.

455

430

380

322

304

380

505

380

610

640

675

750

870

1,000

960

870

790

710

640

610

555

480

430

405

380

405

555

555

505

455

430

Aug.

405

4flfi

480

480 4t><\

360

322

304

287

304

304

287

34(1

322

322

340

360

406

380

360

360

480

505

405

430

430

430

430

405

Sept.

380

380

360

340 *Mrt

322

304

304

322

QOO

304

304

322

380

405

405

430

430

430

430

505

530

530

505

505

505

480

455

405

380

NOTE. Gage read only every other day Jan. 7 to Feb. 10 and Feb. 17 to Mar. 17.

Monthly discharge of Chippewa River at Bishop's Bridge, near Winter, Wis., for 

tue year ending Sept. SO, 1921.

[Drainage area, 775 square miles.]

Month.

May..-. __ ... ... . .. _____ . _ .'....

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

The year _________________

Discharge in second-feet.

Maximum.

580 

530 

430 

325 

520 

1,860

1^250 

1,000 

505 

530

2,980

Minimum.

322 

380 

270 

240 

215 

270 

750 

430 

405 

304 

287 

304

215

Mean.

436

448 

344 

273 

282 

791 

1,670 

1,070 

689 

569 

382 

400

613

Per

square 

mile.

0.563 

..578 

.444 

.352 

.364 

1.02 

2.15 

1.38 

.889 

.734 

.493 

.516

.791

.Run-off 

ip inches.

0.65 

.64 

.51 

.41 

.38 

1.18 

2.40 

1.59 

.99 

.85 

.57 

.58

10.75

81182 24f WSP 521
60 SUEFACE WATER SUPPLY, 1921, PART V.

CHIPPEWA RIVER NEAR BEUCE, W1S.

LOCATION. In sec. 4, T. 35 N., R. 7 W., at Minneapolis, St. Paul & Sault Ste. 

Marie Railway bridge 1 mile east of Bruce, Rusk County. Thornapple 

River enters from left just above station, and Flambeau River from left 

about 21 miles below.

DRAINAGE ABEA. 1,600 square miles (measured on map issued by Wisconsin 

Geological and Natural History Survey, edition of 1911; scale, 1 inch= 

6 miles.

RECOBDS AVAILABLE. December 31, 1913, to September 30, 1921.

GAGE. Chain gage attached to downstream side of Minneapolis, St. Paul

& Sault Ste. Marie Railway bridge; read by H. C. Gardner. 

. DISCHARGE MEASUREMENTS. Made from downstream side of bridge.

CHANNEL AND CONTROL. Bed composed of sand and small gravel; free from 

vegetation; first and second channels from west fairly permanent; third 

channel nearest east bank has a tendency to fill during low stages with 

sand worked in by Thornapple River. Flow, except during extreme high 

stages, is confined within the banks.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 9.12 feet at 

1.45 p. m. April 29 (discharge, 8,550 second-feet); minimum discharge, 

estimated 360 second-feet January 16 (stage-discharge relation affected by 

ice).

1914-1921: Maximum stage recorded, 12.5 feet at 6 p. m. March 27, 1920 

(discharge, 13,800 second-feet); minimum stage, 1.15 feet, morning and 

afternoon reading, August 21, 1918 (discharge, about 260 second-feet); 

caused by regulation.

REGULATION. Flow regulated to some extent by reservoir on West Fork of 

Chippewa River, in sec. 14, T. 41 N., R. 6 W. Reservoir has a capacity of 

550 million cubic feet, and is used in connection with reservoirs on upper 

Flambeau River, for purpose of regulating the flow of Chippewa River. 

No diurnal fluctuation is observed.

ACCURACY. Stage-discharge relation practically permanent except as affected 

by ice November 11-19 and December 6 to March 24. Rating curve well 

defined between 450 and 7,000 second-feet; fairly well defined between 

7,000 and 15,000 second-feet. Gage read to quarter-tenths once daily 

except during period November 14 to March 26, when it was read every other 

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

table, except for periods during which stage-discharge relation was affected 

by ice, for which it was ascertained by applying to rating table daily gage 

height corrected for effect of ice by means of two discharge measurements, 

observer's notes, and weather records, and by interpolating for days when 

gage was not read. Records fair.

Discharge measurements of Chippewa River near Bruce, Wis., during the year

ending Sept. 30, 1921.

Date.

Oct. 18

Jan. 3«

Feb. 60

Made by 

D. W. Roberts.........

G. F. Rittenberg.......

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

Gage 

height.

Feet. 

1.88

2.76

2.78

Discharge.

Sec.-ft. 

731

631

508

Date.

Aug. 14

Made by 

A. O. Olson... ...... ...

height.

Feet.

5.78

1.67

Discharge.

Sec.-ft. 

4,510

519

° Complete ice cover.
Daily discharge, in second-feet, of Chippeyja River near Bruce, Wis., for the year

ending Sept. 30, 1921.

Day.

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

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

3 

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

5 

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

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

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

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

10 

11 .- 

12 

13. 

14. 

15.. .......

16 

17 

18 .

19 

20 

21 

22 

23 

24 ........

25 ,

26 

27 

28 __ .....

29 . _ ...

30 

31 __ ..........

Oct.

535

535

535 53S502

S02

502

502

470

470

535

502

502

535

570

760

800

800

840

840

925

1,100

1,140

1,100

1,060

968

1,010

925

840

840

Nov.

840

.840

840

v.i«82.;

' 882

882

882

840

840

882

866

840

840

840

840

882

968

1,060

1,190

1,190

1,190

1,190

1,190

1,240

1,280

1,190

1,100

1,100

1,100

1,010

Dec.

925

860

800

 JQfl

7«0

775

745

705

650

605

605

640

720

800

840

840

815

790

775

760

745

730

710

695

680

665

650

635

630

620

605

Jan.

570

535

620

,55p

560

565

545,

530

510

485

450

420

410

395

375

360

370

380

385

395

390

390

405

420

420

420

410

400

400

400

405

Feb.

415

440

460

460

460

500

450

450

450

450

445

440

430

425

420

425

430

430

430

420

410

410

410

410

406

420

435

AAfi £4»

Mar.

460

450

W 445 '

440

455

470

480

495

505

520

540

565

580

590

760

925

1,190

1,370

2,040

2 720

2,820

2,920

3,020

:>3,220

4,770

6,320

5,200

4,980

4,560

s Q^U\

Apr.

3,520

3,320

3,120

3,120

8,120

3,220

3,620

3,620

3,820

3,930

4,040

3,930

3,720

3,420

3,120

3,020

2,220

1,840

1,840

1,840

1,940

1,750

1,660

1,370

1,370

2,920

4,040

7,820

8,520

7,280

May.

5,860

4,660

4,350

4,040

3,620

3,220

2,620

2,320

2,040

1,840

1,750

1,560

1,460

1,460

1, 460

1,280

1,190

1,190

1,280

1,370

1,370

1,370

1,140

1,060

1,060

1,010

1,100

1,100

925

968

i 14ft

June.

1, 370

1, 560

1,280

1,190

1,100

968

1,100

1,460

1,750

2,520

2, 130

1,750

1,560

1,370

1,140

840

840

800

800

800

800

760

780

720

680

680

760

760

760

760

July.

680

680

642

605

470

470

680

800

968

968

840

882

925

1,060

1,280

1,370

1, 190

1,140

1,060

840

760

760

720

605

605

605

800

1,100

925

840

720

Aug.

680

570

605

642

605

570

535

470

440

440

470

470

470

535

680

570

535

502

502

535

535

535

535

 605

642

605

605

605

605

605

Sept.

605

570

535

,.;. , 888

535

535

502

502

502

: 570

570

535

535

605

642

760

760

840

882

1,560

2,420

2,720

2,320

1,840

1,560

1,190

1,060

1,010

840

840

NOTE. Stage-discharge relation not affected by ice, but gage was not read and discharge was interpolated. Nov. 20, 22, 24, 28, 28, 30, Dec. 2, 4, and Mar.-26. During periods of ice effect also the gage was 

read only every other day; discharge ascertained as indicated under "Accuracy."

Monthly discharge of Chippewa River near Bruce, Wis., for the year ending Sept.

Sept. 30, 1921.

[Drainage area, 1,600 square miles.J

Month.

April. _ ..

June

July . 

Discharge in second-feet.

Maximum.

1,140 

1,280 

925 

620 

500 

6,320 

8,52C 

5,860 

2,520 

1,370 

680 

2,720

8,520

Minimum.

470 

840 

605 

360 

405 

440 

1,370 

925 

680 

470 

440 

502

360

Mean.

732 

991 

728 

447 

435 

1,880 

3,400 

1,960 

1,130 

838 

558 

963

1,170

Per

square 

mile.

0.458 

.619 

.455 

.279 

.272 

1.18 

2.12 

,1.22 

.706 

.524 

.349 

.602

.731

Run-off 

in inche?.

0,53 

.69

.52 

.32 

.28 

1.36 

2.36 

1.41 

.79 

.60 

.40 

.67

9.93
62 SUBPACE WATEE SUPPLY, Ida, PAST V. 

CHIPPEWA KIVER AT CHIPPEWA FAiLS, WIS.

LOCATION. In SE. J sec. 6, T. 28 N., R. 8 W., at highway bridge at Chippewa 

Falls, Chippewa County, 2,500 feet below mouth of Duncan Creek, which 

enters from right.

DRAINAGE AREA. 5,600 square miles.

RECORDS AVAILABLE. June 22, 1888, to September 30, 1921. The station was 

originally established by Chippewa Lumber & Boom 'Co., which has kept a 

continuous record since 1889. Since 1904 United States Weather Bureau 

has obtained gage readings during flood season of each year. On June 

1, 1906, United States Geological Survey began making measurements 

and obtaining gage readings.

GAGE. On July 27, 1916, Gurley water-stage recorder was installed in place 

of a Friez water-stage recorder which had been in operation since January, 

1914, on web between caisson piers supporting first right-hand span, about 

10 feet upstream from gage formerly used by United States Weather Bureau; 

gage referred to original datum; inspected by F. N. Leslie. 

DISCHARGE MEASUREMENTS. Made from downstream side of bridge. 

CHANNEL AND CONTROL. Bed composed of heavy gravel; fairly permanent.

Banks high and are seldom overflowed.

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

about 11 a. m. April 29 (discharge, 33,600 second-feet); minimum stage, 

 0.58 foot at 8 a. m. July 5 (discharge, 236 second-feet); minimum discharge 

caused by regulation and does not represent natural flow.

1888-1921: Maximum stage recorded, 26.03 feet December 6, 1896 

(discharge not determined on account of effect of ice jam); maximum openwater stage recorded, 17.0 feet at about 1 p. m. March 27, 192,0 (discharge, 

78,000 second-feet); minimum discharge recorded, about 40 second-feet 

February 4, 1917 (caused by regulation at Wissota dam).

A stage of 26.94 feet was reached September 10, 1884; discharge not 

determined.

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

REGULATION. Flow past station controlled to considerable extent by operation 

of gates at the Wissota power plant of Wisconsin,. Minnesota Light & Power 

Co., a short distance above gage. Large diurnal fluctuation. 

ACCURACY. Stage-discharge relation practically permanent except during 

period December 18 to March 23, when temporary backwater of uncertain 

nature, but probably caused by ice, was present, as evidenced by three 

discharge measurements; subsequent measurements indicate a slight change 

in control following this period. Rating curve used prior to December 18 

well defined above 530 second-feet; indirect method for shifting control 

used December 18 to March 23; curve used after March 23 well defined 

above 2,000 second-feet and fairly well defined below that point. Operation 

of water-stage recorder satisfactory except as indicated in footnote to table 

of daily discharge. Daily discharge ascertained by means of the discharge 

integrator except for periods during which recorder did not operate for 

which it was ascertained as indicated in footnote to table of daily discharge. 

Records good to fair.
UPPER MISSISSIPPI BWEB BASIN.

Discharge measurements of Chippewa River at Chippewa Falls, Wis., during the 

year ending Sept. 30f 1981.

Date.

Feb. 4«»

Mar. 4«

Made by 

S. B. Soulfi __ . ...

G. F. Rittenberg... ......

__ do _______ '. ...

Gage 

height.

feet. 

0.48

1.10

1.57

Discharge.

Sec.-ft. 

1,310

2,250

3,310

Date.

Apr. 13

Aug. 12

Made by 

A. O. Olson. ... .»...

Oage 

height

Feet. 

4.98

.62

Discharge.

Sec.-ft. 

13,700

1,595

« Stage-discharge relation probably affected by ice.

Daily discharge, in second-feet, of Chippewa River at Chippewa Falls, Wis., for 

the year ending Sept. 30, 1921.

Day.

1. ..- .-. .

2..........

3 .......

4

5 _

6.....--.,

7..........

8 

9 . 

10. 

11-....-....

12 

13 . ......

14 

15.........

16... _ ....

17 .......

18 .......

19 .......

20 .......

21 ......

22 .......

23 

24.. 

25 -...-..

26-..-.....

27

28 .......

29 .

30 .

31 .

Oct.

1,840

2,010

1,510

1,970

2,250

2,260

2,160

2,250

2,000

1,640

2,000

2,120

1,950

1,910

1,940

1,830

1,670

1,700

1.860

1,920

1,860

2,010

1,880

1,140

1,970

2,450

2,440

2,400

2,250

2,060

1,980

Nov.

2, 100

2,020

2,100

2,180

2 260

1,940

1,670

1,700

1,820

1,940

1,730

1,870

1,510

1,060

1,560

1,970

2,120

2,300

2,010

1,920

1,200

1,400

2 020

2,080

1,450

2,040

1,760

1,280

2,140

2,330

Dee.

2,320

2,300

2,250

2,070

1,500

1,940

2,050

2,150

2,220

1,980

2,060

1,700

2,020

1,870

1,880

2,080

2,410

2,200

1,790

2,360

2,380

2,400

2,270

1,860

,1,230

1,120

1,420

2,000

1,830

1,650

Jan.

950

820

1,860

2 130

9 n3n

2,070

2,150

2,020

1,330

1,840

2,140

9 inn

2,300

2,140

1,980

1,210

2,040

2,090

1,990

1,970

2,300

2,120

1,150

2,410

2,560

2,420

2,250

2,080

1,720

1 040

.2,520

Feb.

1,980

2,140

2,160

1,870

1,040

1,660

1 840

1 QRn

1 QSfl

1,960

1 Q^ft

952

1,750

1,970

2,080

2,170

2,040

2,020

870

2,240

2 320

9 1££\

2,280

2,640

2,920

1,610

2,330

Mar.

2, 410

2 A An

2,430

2 JQfl

9 9 in

1 93fi

9 Tin

2 460

9 ifin

1,380

1,200

1 99ft

1 iQn

4,200

4,180

4,440

4 OKA

4

onn

4,880

1 7Ofi

4 600

5,910

13,400

12,500

11,500

14,300

OO Afit)

24,100

99 lYm

.15,400

Apr.

13,000

10 900

10,000

n

Of\A

» 7Qn

10,400

19 7flfi

13 inn

19 RAO

13,400

14 600

19* ion

n

JAA

10,700

9,690

9,690

7 660

Q Q4f)

5,860

5,280

7,100

6,350

5,800

5,610

7,010

5,280

Q Olrt

IQ 9nn

30,100

29, 500

May.

24,000

20,100 ifi 4nn

19 finn

in fion

7 QQft

9,080

6,250 7 fion

5,510

5,390

5,220

5,770

4,000

1,980

4,640

4,520

4,750

4,290

4,250

A, cwn

2,220

4

1 Oft

4,690

4,280

3,560

3,590

4 600

2,900

10,100

8,680

June.

7,820

9,780

7,870

5,620

q 7nn

5,610

4,370

5 OKA

13,300

11 300

9,740

6,120

4 300

4! 300

3,700

3,350

3,880

2,400

3,000

2,620

2,680

1,860

1,360

1,080

1,020

1,500

1,520

1,500

i ^i^n

July.

1,580

2,050

1,050

870

1,500

2,580

3,320

1,880-

2,030

9 finn

2,260

q eeri

3,460

2,740

3, 480

2,870

4,320

4,580

3,100

3,140

9 Sim

1,700

1,820

2,090

1,870

2,700

4,750

4,500

2,280

Aug.

9 non

2,240

2,340

2,120 i Ofin

2,140

1,580

1 QF*ft

1,800 i ton

1,390

1,420

1,500

i jun

1,200

1,360

1,720

1,730

1,270 9 son

925

2,340

3,100

3,290

2,880

2,880

q 70ft

2,460

2,780

3,000

2,940

Sept.

2,040

2,200

1,860

960

860

2,180

2,260

2,190

2,080

2,020

1,140

2,290

2,160

2,140

2,040

2,040

1,920

1,080

2,150

2,180

2,390

1,880

3,400

3,700

2,870

4,700

4,340

2,760

2,130

2,900

NOTE. Water-stage recorder not in perfect operation Oct. 1 and 2, Nov. 13-17, Dec. 22-24, June 29 to 

July 1, July 8-11, 29 and 30; discharge estimated.

Monthly discharge of Chippewa River at Chippewa Falls, Wis., for the year ending

Sept. 30, 1921. 

[Drainage area, 5,600 square miles.l

Month.

February... _________________ ...

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

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

September _ _ ___ .. -.. ...-... .......

Discharge in second-feet.

Maximum.

2,450 

2,330 

2,410 

2,560 

2,920 

24,100 

30,100 

24,000 

13,300 

4,750 

3,730 

4,700

30,100

Minimum.

1,140 

1,060 

1,120 

820 

870 

1,190 

5,280 

1,980 

1,020 

870 

925 

860

820

Mean.

1,970 

1,850 

1,960 

1,940 

1,970 

6,640 

11,300 

7,040 

4,620 

2,720 

2,110 

2,300

3,870

Per square 

mile.

0.362 

.330 

.350 

.346 

- .352 

1.19 

2.02 

1.26 

.825 

.486 

.377 

.411

.691

Run-off in 

inches.

0.41 

.37 

.40 

.40 

.37 

1.37 

2.25 

1.45 

.92 

.56 

.43 

.46

9.30
64 SURFACE WATER SUPPLY, 19^1, PARl* V.

FLAMBEAU RIVBB H1AE BUTTERITOT, WE.

LOCATION. In NW. | SE. J sec. 33, T. 41 N., R. 1 E.. 6 miles southeast of Butternut, Ashland County, and 7 miles upstream from Park Falls.

DRAINAGE AREA. 660 square miles (measured on map issued by Wisconsin 

Geological and Natural History Survey, edition, of 1911; scale, 1 inch = 6 

miles).

RECORDS AVAILABLE. July 30, 1914, to September 30, 1921. >

GAGE. Chain gage supported by built-up cantilever; attached to posts set in 

right bank of river; installed May 26, 1916; read; by Edwin Schultz. Vertical staff gage at same site and datum was used from July 30, 1914, 

until taken out by ice in spring of 1916.

DISCHARGE MEASUREMENTS. Made from cable 1,500 feet below gage.

CHANNEL AND CONTROL. Bed at gage composed of mud and rock. Left bank 

low and subject to overflow; right bank slopes back gradually to high-water 

mark. At cable site, 1,500 feet below gage, bed is rock and banks are high. 

Control is at head of Schultz Rapids, 200 feet below cable and 1,700 feet 

below gage; permanent.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 5.75 feet at 

7.30 a. m. April 8 (discharge, 2,520 second-feet); minimum stage, 1 foot 

at 6 p. m. June 30 (discharge, 220 second-feet).

1914-1921: Maximum stage recorded, 9.0 feet April 22 and 23, 1916 

(discharge, 5,430 second-feet); minimum stage recorded, 0.90 foot August 

27 and 28, 1920 (discharge, 204 second-feet). 

ICE. Stage-discharge relation seriously affected by ice.

REGULATION. Storage reservoirs are maintained by Chippewa & Flambeau 

Improvement Co., on headwaters of Flambeau River. Of these reservoirs 

Rest Lake, in sec, 9, T. 42 N., R. 5 E., with an allowable capacity of about, 

li billion cubic feet, is the largest.

ACCURACY. Stage-discharge relation permanent except as affected by ice. 

Rating curve well defined between 356 and 3,480 second-feet. Gage read 

to quarter-tenths twice daily except during winter, when it was read every 

other day. Daily discharge ascertained by applying meaH<iaily gage height 

to rating table except for periods of ice effect and for days when gage was 

not read, for which it was. ascertained as indicated in footnote to table of 

daily discharge. Open-water records excellent; winter records fair.

Discharge measurements of Flambeau River near Butternut, Wis., during the year

ending Sept. 30, 1921.

Date

Oct. 24

Feb. 7«

Made by 

8. B.Soule1 ............

G. F. Rittenberg.......

. __ do..... - . _ ...

Gage 

height.

Feet. 

1.82

2.27

2.48

Discharge.

See-ft. 

432

486

372

Date. Made by- Gage 

height.

Feet. 

2.58

1.71

Discharge.

Sec.-ft 

31]

Complete ice cover at measuring section; incomplete ice cover at control.
I7PPEB MISSISSIPPI BIV1B BASIN.

Daily discharge, in second-feet, of Flambeau River near Butternut, Wis., for the 

year ending Sept. SO, 1921,

Day

1..... __ ....

2

3 _______ ..

4...... ___ ..

6 ....

6 

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

8. _ ..........

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

10.... _ .......

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

12. . _ ......

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

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

15. ____ ......

16 

17 

18 _ . ...

19 ___ ..... ...

20

21 ......

22

23 

24...... ___ ..

25. _ .. __ ....

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

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

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

29.. ___ . __ .

30 ......

31 

Oct.

416

385

370

370

416

416

432

449

449

416

370

316

292

304

329

356

37^

329

329

329

342

356

385

400

385

356

342

342

342

329

304

Nov.

316

342

356

356

356

370

356

342

342

342

304

400

292

304

329

280

280

292

304

337

370

378

385

400

416

416

416

416

416

4fi7

Dec.

518

500

483

483

483

483

483

Aflfl

329

316

304

329

389

449

449

449

, 432

416

416

416

416

416

415

400

385

385

385

415

450

465

485

Jan.

485

485

485

485

485

465

445

430

415

390

370

370

370

350

335

335

335,

330

325

350

375

355

345

335

340

340

335

330

330

335

Feb.

340

340

340

345

340

350

355

345

335

335

335

345.

355

355

355

350

350

335

320

320

315

300

290

310

325

315

310

300

Mar.

290

275

275

275

280

29

300

310

315

320

320

325

330

335

350

370

390

415

450

485

555

715

830

870

895

940

962

985

1,080

1,170

1,280

Apr.

1,380

1,470

1,560

2,210

2,280

2,280

2,420

2,490

2,420

1,940

1,870

1,800

1,740

1,680

1,500

1,330

1,330

1,220

1,120

1,080

985

985

940

895

940

895

1,080

1,280

1,380

1,500

May.

1,500

1,440

1,330

1,280

1,220

1,170

1,080

940

805

716

632

632

592

632

632

592

554

592

592

632

632

632

632

673

716

716

805

805

805

850

805

June.

850

895

850

805 805*

805

805

850

805

805

760

716

716

673

632

632

592

466

416

370

316

329

329

292

280

258

248

229

229

229

July.

1,620

1,560

1,500

1,440

1,330

1,220

1,120

1,080

940

850

716

632

632

632

632

632

554

554

554

518

466

432

432

432

483

466

432

400

385

342

' 342

Aug.

329

356

416

449

449

370

342

316

316

342

370

385

400

400

400

416

416

432

449

449

432

342

292

292

304

316

370

385

316

269

304

Sept.

356

304

316

316

329

342

356

370

304

292

304

356

329

356

304

304

280

304

304

292

269

292

316

329

342

592

554

466

432

400

NOTE. Gage read only every other day Nov. 18 to Apr. 2; for periods of open water, Nov. 18 to Dec. 

22 and Mar. 26 to Apr. 2, discharge was interpolated for days of no gage reading; during period Dec. 23 to 

Mar. 25 stage-discharge relation was affected by ice, and discharge was ascertained by applying to rating 

table the daily gage height corrected for ice effect by means of three discharge measurements, observer's 

notes, and weather records, and then interpolating for days of no gage reading.

Monthly discharge of Flambeau River near Butternut, Wis., for the year ending

Sept. SO, 1921'.

[Drainage area, 660 square miles.]

Month.

WO'"WHllMW*»nTil-fc*i«».- 

DecelnlSr:.- ......... ..... _ _.

February __________ . ________

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

May......-.... .. ......................

July.... . _-. --. 

September. .. __ .. ____________

The year ___ . _ ... ________

Discharge in second-feet.

Maximum.

449 

467 

518 

485 

355 

1,280 

2,490 

1,500 

895 

1,620 

449 

592

2,490

Minimum.

292 

280 

304 

325 

290 

275 

895 

554 

229 

342 

269 

269

229

Mean.

365 

356 

424 

381 

332 

548 

1,530 

827 

566 

752 

369 

347

567

Per square 

mile.

0.553 

.539 

.642 

.577 

.503 

.830 

2.32 

1.25 

,858 

1.14 

.559 

.526

.859

Run-off 

in inches.

0.64 

.60 

.74 

' .67 

.52 

.96 

2.59 

1.44 

.9ft 

1.31 

.64 

.59

11.66
66 SURFACE WATER SUPPLY, 1921, PAET V.

FLAMBEAU RIVER NEAR LADYSMTTH, WIS.

LOCATION. In SE. J sec. 20, T. 35 N., R. 5 W., at H. J. Cornelissen's farm, 6 

miles by road northeast of Lady smith, Rusk County, 21 miles below mouth 

of South Fork of Flambeau River, which enters from left, and 28 miles 

above mouth of river.

DRAINAGE AREA. 1,940 square miles (measured on map issued by Wisconsin 

Geological and Natural History Survey, edition of 1911; scale, 1 inch=6 

miles).

RECORDS AVAILABLE. January 1, 1914, to September 30, 1921. From February 

15, 1903, to December 2, 1906, records were collected at a station in city of 

Ladysmith, three-fourths of a mile south of Minneapolis, St. Paul & Sault 

Ste. Marie Railway station, half a mile below dam of Menasha Pulp Co., and 

6 miles below present station.

GAGE. Chain fastened to a cantilever arm, supported by two posts, on left bank 

of river, on farm of H. J. Cornelissen; read by H. J. Cornelissen.

DISCHABGE MEASUREMENTS. Made from cable 200 feet below gage.

CHANNEL AND CONTROL. Bed composed of gravel and sand; free from 

vegetation; fairly permanent. At gage section, channel is divided by a 

small sandy island; at cable section the river flows in one channel. Banks 

are medium high, wooded, and not subject to overflow. Control not well 

defined; formed by channel below gage.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 6.40 feet 

March 30 (discharge, 6,900 second-feet); minimum discharge, estimated 

350 second-feet February 8 (stage-discharge relation affected by ice).

1903-1906; 1914-1921: Maximum discharge recorded, 17,400 second-feet 

April 23, 1916; minimum discharge, 350 second-feet February 8, 1921.

ICE. Stage-discharge relation seriously affected by large quantities of frazil 

ice which form on the falls and rapids above station and fill the channel for a 

distance of several miles from the gage to pond of Paper Co.'s dam at Ladysmith.

REGULATION. Chippewa & Flambeau Improvement Co. operates a storage 

reservoir at Rest Lake and smaller reservoirs on Manitowish and Turtle 

rivers and Bear Creek. These reservoirs have an effective capacity of 1.15 

billion cubic feet. Weekly fluctuations at gate are caused by operation of 

power plants at Park Falls and storage reservoirs. No daily fluctuation has 

been observed.

ACCURACY. Stage-discharge relation changed during high water of latter part 

of March; seriously affected by ice. Standard rating curve well defined 

between 770 and 17,000 second-feet; was used direct October 1 to March 26 

except for period of ice effect; indirect method for shifting control used 

March 27 to September 30. Gage read to quarter-tenths once daily October 

1 to December 31; read usually every other day January 1 to September 30. 

Daily discharge ascertained by applying daily gage height to rating table, 

except for period of ice effect and for days when gage was not read, for which 

it was ascertained as indicated in footnote to daily-discharge table, and 

except for period for which shifting-control method was used. Open-water 

records prior to winter period, good; thereafter fair; winter records fair.

Discharge measurements of Flambeau River near Ladysmith, Wis., during the year

ending Sept. SO, 1921.

Date.

Oct. 18

Feb. 6 »

Made by 

D. W. Roberts _____

Gage 

height.

Feet.

al Qfl

2.98

3.50

Discharge.

Sec.-ft. 

726

737

621

Date.

Mar. 7*

A 11(7 Id

Maderby Gage 

height.

Feet. 

3.12

2.00

Discharge.

Sec.-ft. 

623

672

> Stage-discharge relation possibly affected by logs in channel. b Complete ice cover.
UPPER MISSISSIPPI SIVEK BASIN. 6/7

Daily discharge, in second^eet, of Flambeau River near Lady smith, Wis., for the 

year ending Sept. SO, 1921.

Day.

1...- ......

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

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

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

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

6_. .. ..........

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

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

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

10... . 

11 . .'-

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

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

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

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

16 .-

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

18 . ..

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

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

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

22 _________

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

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

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

36.. . ..

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

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

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

30...... . 

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

Oct.

 710

670

580

740

770

670

660

685

660

660

652

640

685

685

612

620

752

628

660

660

722

1,000

920

920

880

880

960

960

1,160

1,160

Nov.

840

920

740

770

QflA

ncn

840

840

770

710

700

680

660

685

710

710

710

740

770

770

770

920

620

640

660

660

660

685

710

770

Dec.

960

1,160

770

920

840

840

840

840

840

840

S95

960

960

960

860

960

920

880

840

840

840

840

1,000

1,000

840

770

740

710

710

685

685

Jan.

685

695

710

735

810

880

915

950

910

870

735

.600

620

640

640

640

585

545

500

500

500

495

495

495

495

520

550

540

530

560

590

Feb.

565

540

520

500

560

485

350

430

510

510

575

640

740

840

830

820

745

670

635

600

580

560

540

525

520

520

Mar.

550

580

595

610

610

610

625

650

675

695

710

710

710

710

770

880

1,000

1,120

1,560

1,790

2,030

2,270

2,510

2,770

2,900

3*180

4,010

4,840

6,870

6,900

5,350

Apr.

3,800

3,280

2,770

3,050

o oon

3 Qfift

4,480

4,570

4,660

4,230

3,800

3,490

3,180

2,980

2,770

2,700

2,640

2,400

2,150

2,150

2,150

2,270

2,390

2,330

2,270

2,210

2,150

4,400

6,660

6,440

May.

8,220

5,720

5,210

4,840

4,480

o QOA

3,480

3,120

2,770

9 fidf\

2,510

2,450

2,390

2,580

2,770

2,640

1,500

1,820

2,150

1,860

1,560

1,530

1,800

1,330

1,160

1,180

1,200

1,200

1,200

2,190

3,180

June.

3,180

3,180

9 Rdrt

2,510

O 91 A

1,910

9 d/in

9 QUA

2,770

9 fidf\

2,580

2,510

2,060

1,620

1,460

1)990

1,100

920

940

960

940

920

845

770

705

640

574

508

574

640

July.

650

660 1 4/w

2,150

1,800

i 4.p;n

1,800

2,150

2,150

2,150

1,860

1,560

1,340

1,800

2,270

8,090

1,910

1,680

1,450

1,340

1,240

1,080

920

920

920

660

1,000

1,340

1,340

1,340

1,210

Aug.

1,080

925

770

770

770

740

710

641

572

596

620

810

1,000

710

625

540

672

805

862

920

1,000

960

930

880

840

860

880

920

960

980

1,000

Sept.

885

770

770

7TO

764

7>ai

734

710

775

QAfl

740

640

560

610

640

685

710

920

1,240

1,560

1,910

3,330

2,800

2,270

2,030

1,790

1,790

1,660

1,340

NOTB. Stage-discharge relation affected by ice Nov. 11-20,24-29, and Dec. 4 to Mar 26; discharge ascertained by applying to rating table daily gage height corrected for effect of ice by means'of three discharg e 

measurements, observer's notes, and weather records, and by interpolating for days of no gage reading. 

Discharge interpolated on account of lack of gage readings Jan. 1, Jan. 5, and every other day thereafter to 

Jan. 17, Jan. 18, and every other day thereafter to Mar 5, Mar. 9, and every other day thereafter to July 11, 

July 14, and every other day thereafter to July24, July 27, and every other day thereafter to Aug. 12, Aug. 15, 

17,19, Aug. 22, and every other day thereafter to Sept. 11, and Sept. 14,16,19,22,24,26, and 29. 

Monthly discharge of Flambeau River near Ladysmith, Wis., for the year ending

Sept. SO, 1921.

[Drainage area, 1,940 square miles.}

Month.

Anril. ..... ...- 

July 

Discharge in second-feet.

Maximum.

1,160 

960 

1,160 

950 

840 

6,900 

6,660 

6,220 

3,180 

2,270 

1,080 

3,330

6,900

Minimum.

580 

620 

685 

495 

350 

550 

2,150 

1,160 

508 

650 

540 

560

350

Mean.

766 

753 

866 

643 

587 

1,900 

3,320 

2,660 

1,640 

1,470 

817 

1,250

1,390

Per square 

mUe.

0.395 

.388 

446 

.331 

.303 

.979 

1.71 

1.37 

.845 

.758 

.421 

.644

.716

Run-off in 

inches.

0.46 

.43 

.51 

.38 

.32 

1.13 

1.91 

1.58 

.94 

.87 

.49 

.72

9.74

81182 24t WSP 525 6
68 SURFACE WATER SUPPLY, 1921, PART V.

JUMP RIVER AT SHELDON, WIS.

LOCATION. In sec. 26, T. 33 N., R. 5 W., at highway bridge in Sheldon, Rusk 

County, 11 miles above mouth of river.

DRAINAGK AKKA. 510 square miles (measured on map issued by Wisconsin 

Geological and Natural History Survey, edition of 1911; scale, 1 inch=6 

miles).

RECORDS AVAILABLE. July 22, 1915, to September 30, 1921.

GAGE. Chain gage bolted to downstream handrail of bridge; read by Elsa 

Dietze.

DISCHARGE MEASUREMENTS. Made from downstream side of bridge or by 

wading.

CHANNEL and CONTROL. Bed composed of heavy gravel; clean and free from 

vegetation; permanent. Right bank high and not subject to overflow; 

left bank may be overflowed occasionally.

EXTREMES OP DISCHARGE. Maximum stage recorded during year, 8.70 feet at 

4 p. m. March 20 (discharge, 7,230 second-feet); minimum stage recorded, 2.78 

feet at 8 a. m. July 13 (discharge, 28 second-feet).

1915-1921. Maximum stage recorded, 11.48 feet March 26, 1920 (discharge, 12,800 second-feet); minimum discharge, about 15 second-feet 

February 3-7, 1918 (stage-discharge relation affected by ice,).

ICE. Stage-discharge relation seriously affected by ice.

REGULATION. None.

ACCURACY. Stage-discharge relation permanent except as affected by ice. 

Rating curve well defined between 45 and 5,930 second-feet. Gage read to 

quarter-tenths twice daily, except during winter when it was read every 

other day. Daily discharge ascertained by applying mean daily gage 

height to rating table except for periods during which stage-discharge relation was affected by ice and days on which gage was not read, for which it 

was ascertained as indicated in footnote to table of daily discharge. Openwater records good; winter records fair.

Discharge measurements of Jump River at Sheldon, Wis., during the year ending

Sept. 30, 1921.

Date.

Dec. 31

Feb. 5

Made by 

G. F. Rittenberg.-.-...

Gage 

height.

Feet. 

3.61

3.67

Discharge.

8ec.-ft. 

76

71

Date.

Mar. 5

Aug. 13

Made by 

G. F. Rittenberg .......

height.

Feet. 

3.76

2.90

Dis

charge.

Sec.-Jt. 

75

44. 1

Complete ics cover.
Daily discharge, in second-feet, of Jump River at Sheldon, Wis., for the year ending

Sept. 80, 1921.

Day.

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

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

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

4__ ............

S....... .......

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

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

8..... ___ ....

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

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

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

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

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

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

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

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

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

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

19 

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

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

22 

23... _. ........

24 

25 

26 

27 

28. 

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

30 

31 ........

Oct.

45

60

52

45

39

39

38

38

45

58

102

116

74

70

60

70

58

58

,52

62

88

180

180

130

116

105

91

88

88

80

Nov.

80

94

116

122

108

88

102

94

80

68

56

45

45

60

70

90

88

88

88

88

88

102

116

116

110

105

105

105

Dec.

112

119

148

176

148

:119

135

140

140

136

136

136

136

150

170

190

195

170

165

150

140

120

110

100

95

85

75

Jan.

85

100

110

140

165

150

140

130

120

110

100

100

100

100

95

90

on

90

85

90

100

110

115

130

150

130

115

100

80

80

80

Feb.

80

80

80

80

70

80

80

80

70

60

60

60

60

60

60

60

60

60

70

85

80

70

60

50

45

40

45

50

Mar.

5S

60

60

60

75

75

85

95

100

110

115

120

120

120

140

180

230

280

1,400

7,230

6,290

5,570

3,400

3,250

2,950

2,950

4,880

5,050

3,880

2,950

1,880

Apr.

1,400

1,300

1,200

1,200

1,300

1,300

1,400

1,400

,1,200

* 1,200

1,110

930

840

760

1,020

930

840

720

610

540

540

485

540

485

540

1,980

4,880

5,570

4,200

May.

9 Qitfl

1 fiftfh

1,300

930

720

610

512

430

380

330

280

270

255

280

280

255

280

330

305

280

240

190

190

172

180

355

1,400

2,110

2,110

2,370

June.

2,110

1,620

1,020

760

540

380

610

2,110

2,650

2,370

1,300

1,110

892

675

458

240

190

160

148

133

112

105

98

OS

98

98

65

77

105

140

July.

140

\t&

123

105 '

,88

77

77

98

98

50

33

30

29

33

50

50

74

70

50

50

70

58

42

32

33

36

77

133

137

112

105

Aug.

74

65

58

48

45

38

32

36

33

33

58

50

55

55

65

65

58

45

45

48

45

33

33

42

60

70

77

88

74

Sept.

70

05

48

50

58

45

4ft

50

65

70

65

55

48

58

68

70

98

98

98

112

160

270

380

305

240

205

160

133

98

,77

NOTE. Gage not read Nov. 11 and every other day thereafter to Mar. 19 except on Febi 5 and Mar. 5; 

for periods of open water, Nov. 11,12,18-30, Dec. 1-6 and 10-14, discharge was interpolated for days of no 

gage reading; during periods Nov. 13-17, Dee. 7-9, and Dec. 15 to Mar. 19 stage-discharge relation was 

affected by iee and discharge was ascertained by applying to rating table daily gage heigflt corrected for 

ice effect by means of three discharge measurements, observer's notes, and weather records, and then interpolating for days of no gage readings. Discharge interpolated also for the period June 13-15, on 

account of lack of gage readings.

Monthly discharge of Jump River at Sheldon, Wis., for the year ending Sept. 30,

1921.

[Drainage area, 510 square miles.]

Month.

July. .. 

Maximum.

180

122

195

165

85

7,230

5,570

2,950

2,650

148

88

380

7,230

mscnarge in

Minimum.

38

45

75

 - 80

40

55

485

172

65

29

32

45

. 29

secona-iee

Mean.

79.6

89.3

140

109

65.5

1,730

1,360

723

682

74.5

53.2

112

437

t.

Per square 

mile.

0.156

.175

.275

.214

.128

3.39

2.67

1.42

1.34

.146

.104

.220

.857

inches.

0.18

.20

.32

.25

.13

3.91

2.98

1.64

1.50

.17

.12

.25

11.65
70 SUBFACH WATER SUPPI/Y, 1921, PAST V.

EAU CIAIEE BITER HEAR AUGUSTA, WIS.

LOCATION. In sec. 12, T. 26 N., R. 6 B., at Trouble Water Bridge, 7 miles 

northeast of Augusta, Eau Claire County. South Fork of Eau Claire River 

enters from left 4 miles above station.

DRAINAGE AREA. 500 square miles (measured on map issued by Wisconsin 

Geological and Natural History Survey, edition of 1911> scale, 1 inch=6 

miles).

HECORDS AVAILABLE. July 16, 1914, to September 30, 1921.

GAGE. Chain gage on downstream side of bridge; read by Albert Wagner.

DISCHARGE MEASUREMENTS. Made from downstream side of bridge or by wading 

at control about 500 feet below bridge.

CHANNEL AND CONTROL. Bed at bridge and above is sandy and very shifting. 

A short distance below gage the channel narrows and a rock outcrop overlain 

with large boulders forms the control. Banks are high and not subject to 

overflow. Point of zero flow, September 28, 1920, at gage height 0.9 foot 

±0.1 foot.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 8.80 feet at 

1 p. m. March 21 (discharge, 5,320 second-feet); minimum stage recorded, 

 0.01 foot at 4 p. m. August 9 (discharge, 45.5 second-feet, by currentmeter measurement).

1914-1921: Maximum open-water stage recorded, 11.98 feet at 9 a. m. 

March 27, 1920 (discharge, 8,720 second-feet); minimum discharge, estimated 

3.5 second-feet, January 27, 1918, from discharge measurement made through 

complete ice cover.

ICE. Stage-discharge relation seriously affected by ice.

ACCURACY. Stage-discharge relation permanent during year except as affected 

by ice. Rating curve well defined below 275 second-feet; extended above 

that point on basis of form of previous curves. Gage read to quarter-tenths 

once daily except as indicated in footnote to table of daily discharge. Daily 

discharge ascertained by applying daily gage height to rating table except 

for periods of ice effect and periods during which gage was not read as indicated in footnote to table of daily discharge. Records subject to error on 

account of poor gage-height record.

Discharge measurements of Eau Claire River near Augusta, Wis., during the year

ending Sept. 30, 1921.

Date.

Dec. 29a

Feb. 3

Made by 

G. F. Rittenberg... __

Gage 

height.

Feet. 

0.65

61.06

Discharge.

Sec.-ft. 

65

62

Date. Made by 

A. O. Olson..... ___

4R.

Feet. 

-0.01

Discharge.

Sec.-ft. 

45.5

a Control partly open; some frazil lee. 

* Stage-discharge relation affected by ice.
UPPER MISSISSIPPI RIVER BASIN, 71

Daily discharge, in second-feet, of Eau Claire River near Augusta, Wis., for the 

year ending Sept. SO, 1921.

Day.

1 .

2 . .......

3. .. ..

4 ..

5 .

6 -

7 ... .... ...

8-. - -.

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

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

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

12..-. ....

13 

14 

15 

16 

17 

18 

19 

20 

21 

22-.-.. -.

23 - ...

24 

25 

26 -------

27 

28 

29 

30-. 

31 -.

Oct.

58

70

70

70

75

129

140

118

108

88

65

65

67

68

70

70

Nov.

83

108

114

98

98

94

98

94

98

108

108

110

105

100

100

100

95

95

95

95

100

175

190

190

165

140

129

134

140

164

Dec.

177

177

1$9

152

140

98

136

144

165

165

165

170

175

150

120

100

80

70

70

65

Jan.

65

Feb.

65

7585'

95

105

115

130

140

140

140

145

145

150

155

160

165

170

Mar.

165

170

170

175

180

' 190

200

205

215

225

245

275

305

335

412

605

2,940

5,320

2,500

1,410

890

850

780

970

1,470

745

588

Apr.

465

412

382

351

320

290

320

320

320

350

412

395

335

395

465

335

275

231

204

204

245

290

305

245

245

745

4,560

3,990

1,650

May. 

t

970

745

430

365

305

275

231

177

164

152

152

164

152

140

190

350

' 552

675

395

290

239

169

164

140

640

2,860

2,150

1,150

1,710

June.

1,150

745

588

430

305

260

500

2,010

1,830

1,100

1,590

1,350

640

430

335

275

217

204

169

140

118

114

108

98

88

108

152

129

152

July.

118

118

152

169

212

305

190

204

9AH

190

'118 152

98

118

152

108

10S

152

231

190

108

98

98

88

79

75

79

75

70

65

61

Aug.

58

54

61

61

54

54

54

54

AA

54

83

61

, 54, 54 !

4g

46

54

61

58 ' 54

54

46

46

46

t

Af)

KA

61

58

61

54

Sept.

4A

4.R

AA

54

58

54

54

54

54=u

m

46

46

61

70

70

74

70

61

58

108

204

ifti

136

98

88

79

70

65

61

NOTE. Stage-discharge relation affected by ice Nov. 12-26 and Dec. 15 to Mar. 17; discharge ascertained 

by means of incomplete gage-height record, two discharge measurements, observer's notes, weather records, 

and comparison with flow of adjacent rivers. During periods of ice effect gage was not read Nov. 12-16, 

24-26, Dec. 15 to Jan. 22, Jan. 26, 28, 30, 31, Feb. 1-13, 18, 20, 22, 24, 26-28, Mar. 1-5, and 10-12. During 

open-water periods gage was not read Oct. 1-16, 28, 29, Nov. 28, Dec. 8, 10-14, Apr. 3-5 Sept. 10 and 17: 

discharge estimated by comparison with flow of adjacent rivers or interpolated. Braced figures show mean 

discharge for periods indicated.

Monthly discharge of Eau Claire River near Augusta, Wis., for the year ending

Sept. 30, 1921.

[Drainage area, 500 square miles.] , , ,

Month.

July . 

The year _______________

Discharge in second-feet.

Maximum.

140 

190

177

170 

5,320 

4,560 

2,860 

2,010 

305 

83 

204

5,320

Minimum.

83

165 

204 

140 

88 

61 

46 

46

46

Mean.

71.0 117 

112 

65.0 

103 

764 

648 

543 

516 

136 

54.9 

73.7

268

Per

square 

mile.

>0. 142 

.234 

.224 

.130 

.206 

1.53 

1.30 

1.09 

1.03 

.272 

.110 

.147

.536

Run-off 

in inches.

0.16 

.26 

.26 

.15 

.21 

1.76 

1.45 

1.26 

1.15 

.31 

.13 

.16

7 26
72 SURFACE WATER SUPPLY, 1921, PART V.

RED CEDAR EIVER NEAR COIFAX, WIS,

LOCATION. In sec. 27, T. 30 N., R. 11 W., at highway bridge 4J mites north of

Coif ax, Dunn County. Hay River enters from right 11 miles below station

and Trout Creek, also from right, 3£ miles above. 

DRAINAGE AREA. 1,100 square miles (measured on map issued by Wisconsin

Geological and Natural History Survey, edition of 1911; scale, 1 inch=6

miles).

RECORDS AVAILABLE. March 19, 1914, to September 30, 1921. 

GAGE. Chain gage attached to downstream side of bridge; read by Andrew

Lundeguam. 

DISCHARGE MEASUREMENTS. Made from downstream side of bridge, to which

gage is attached. 

CHANNEL AND CONTROL. Bed composed ~of rock and gravel; small amount of

grass growth during summer. Left bank high and not subject to overflow;

right bank medium high and may be overflowed during extremely high water.

Low-water control is probably subject to slight effect from backwater from

Colfax dam, which was completed in March, 1921. 

EXTREMES OP DISCHARGE. Maximum stage recorded during year, 3.30 feet at

10 a. m. April 28 (discharge, 2,310 second-feet); minimum discharge, estimated 325 second-feet January 17 (stage-discharge relation affected by ice). 

1914-1921: Maximum stage recorded, 6.95 feet at 8 a. m. March 26,

1920 (discharge, 7,610 second-feet); minimum discharge same as for 1921. 

REGULATION.2 The following dams and reservoirs are used to regulate the flow

of Red Cedar River. Owing to operation of these reservoirs, the flow at

station is not natural.

Dams and reservoirs on Red Cedar River.

Dam.

Birch Lake..... ________

Sec. 24, T. 37 N

Sec. 21, T. 36 N

Sec; 25y T. 37 N 

Sec. 7, T. 36 N.,

Location.

, R. 11 W...... .__ _ __-.-_ . . .-. -_. 

, R. 10 W...... ....-. -.- .-., -.. . 

, R. 10 W..-..., - .- ..-. 

R. 11 W. ....... --..---.- .-.. .--.-.

Capacity 

(millions of 

cubic feet).

4tt>

400

475 

150

1, 425

ACCURACY. Stage-discharge relation for low stages changed after completion of 

Colf,ax dam the later part of March; seriously affected by ice. Rating curve 

used prior to change, well defined between 635 and 4,450 second-feet. Curve 

used after change, fairly well defined between 300 and 4,450 second-feet. Gage 

read to quarter-tenths twice daily except during winter, when it was read every 

other day. Daily discharge ascertained by applying mean daily gage height 

to rating table except for period of ice effect and days when gage was not 

read, for which it was ascertained as indicated in footnote to table of daily 

discharge. Open-water records fair; winter records subject to error.

Discharge measurements of Red Cedar River near Colfax, Wis., during the year

ending Sept. 30, 1921.-

Date.

Dec. 30

Feb. 4 l

Apr. 14

Made by 

G. F. Rittenberg..... 

8. B. Soule.... . . _..--

Gage 

height.

Feet. 

"4.00

2.84

1.80

Discharge.

Sec.-ft. 

490

606

852

Date.

Aug. 11°

23°

Made by 

-....do-.... .-.-.....

Gage 

height.

Feet. 

1.60

Discharge.

Sec.-ft. 

632

451

 o Stage-discharge relation affected by ice.

* Ice broken up owing to release of ice jam above gage. 

<= Results of measurement questionable.

2 From data on file in engineering department of Railroad Commission of Wisconsin.
UPPER ( MISSISSIPPI BIVEE BASIN. 1$

Daily discharge, in second-feet, of Red Cedar Rju>er near Coif ax, Wis., for the year

ending Sept. 80, 1921.

Day.

l 

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

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

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

5--.-.-.. ...

8. .......

7 ... ..... 

8 .....

9

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

11 

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

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

14 _ ... _ .

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

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

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

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

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

20 

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

22 ..

23 .

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

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

26 ...

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

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

29 

30 . ...

31.. . ...

Oct.

690

690

600

600

760

750

750

750

820

820

820

820

820

820

890

820

820

720

750

925

9CO

890

820

785

585

585

720

750

750

750

750

Nov.

785

855

855

785

820

720

662,

585

760

855

750

662

635

662

635

750

720

635

925

025

890

720

785

785

785

690

690

750

690

820

Dec.

890

855

855

820

820

690

820

820

820

820

820

820

750

785

785

560

585

560

560

/560

535

535-

535

510

£10

510

510

4CO

490

460

425

Jan.

470

470

470

450

410

410

420

385

350

380

405

400

400

435

470

400

336

360

395

430

490

305

340

385

440

445

450

490

535

400

450

Feb.

535

635

635

610

585

585

-660

560

560

560

635

535

535

635

535

510

510

510

510

510

510

510

400

490

490

510

510

535

Mar.

560

560

560

660

560

560

560

560

585

585

610

610

610

720

785

750

760

820

1,580

1,£80

1,480

1,000

925

890

890

1,780

1,980

2,090

1,880

1,680

Apr.

1,200

985

860

680

710

745

780

815

820

845

860

830

800

782

710

900

710

495

642

642

C75

675

675

610

495

675

1,160

2.2CO

1,980

1, 980

May.

1,760

Ij300

900

820

 745

745

675

675

820

710

675

942

1,070

1,070

1,160

1,070

820

675

675

820

675

675

580

610

610

675

642

610

580

495

675

June.

675

550

550

' "495

470

550

745

745

610

610

650

495

495

445

400

400

495

550

550

342

445

470

495

470

445

400

400

445

445

445

July.

495

495

495

445

360

675

746

710

610

495

422

360

495

610

610

522

675

610

550

495

495

550

495

445

400

422

550

675

495

470

495

Aug.

495

680

MP

610 '550

"550

522

495

445

550

675

550

495

405

445

495

610 675'

675

610

675

550

580

610

610

710

710

642

560

610

675

Sept.

61C

522

fiSO

BTO

495*

470

495

550

550

550

560

523

522

675

642

580

610

610

550

610

1,870

1,560

1,160

900

820

675

610

610

580

610

NOTE. Stage-discharge relation aflected by ice Dec. 17 to Mar. 13; during that period the gage was 

not read on Dec. 19 and every other day thereafter to Mar. 9; also not read on Feb. 16; discharge for the 

period ascertained by applying to rating table the daily gage height corrected for effect of ice by means 

of two discharge measurements, observer's notes, and weather records, and by interpolating or estimating 

for days of no gage reading. Qagi not raad Apr. (M3, discharge ascertained by means of precipitation 

records and comparison with flow of this river at Msnomonie.

Monthly discharge of Red Cedar River near Coif ax, Wis., for the year ending Sept.

SO, 1921.

[Drainage area, 1,100 square miles.}

Mouth.

April. ........ ......... .-.....

July..... .. _.

Discharge in second-feet.

Maximum.

960 

925 

890 

535 

635 

2,090 

2,200 

1,760 

745 

745 

710 

1,870

2,200

Minimum.

585 

585 

425 

325 

490 

'560 

495 

495 

342 

360 

445 

470

325

Mean.

773 

753 

662 

424 

539 

965 

805 

805 

506 

528 

582 

690

678

Per square 

mile.

0.703 

.685 

.602 

.385 

.490 

.877 

.814 

.732 

.460 

.480 

.529 

.627

.616

Run-off in 

inches.

0.81 

.76 

.69 

.44 

.51 

1.01 

.91 

.84 

.51 

.55 

.61 

.70

8.34
f'4

SURFACE WATEE SUPPLY, 1921, PART V.

BED CEDAE KtVER AT CEDAB FAILS, WIS.

LOCATION. In sec. 6, T. 28 N., R. 12 W., at highway bridge near Cedar Falls,

Dunn County, just below power plant of Wisconsin & Minnesota Light &

Power Co., and 4| miles above crossing of Chicago, St. Paul, Minneapolis

& Omaha Railway. 

DEAINAGE AREA. Not measured.

RECORDS AVAILABLE. April 1, 1909, to September 30, 1921. 

GAGE. Staff gage fastened to bridge pier; read by John G. Wood and R. D.

Wilsey. 

DISCHARGE MEASUREMENTS. No discharge measurements have been made at

this station, which is maintained to determine fluctuation in stage. 

CHANNEL AND CONTROL. Channel rough and rocky, straight, and free from

vegetation. Banks high and not subject to overflow. 

EXTREMES OF STAGE. Maximum stage recorded during year, 4.50 feet at 5 p. m.

March 30; minimum stage recorded, 0.70 foot at noon and 6 p. m. July 3,

6 p. m. July 17, noon and 6 p. m. July 24, and noon and 6 p. m. August 7. 

1909-1921: Maximum stage recorded, 7.2 feet March 25 and 26, 1920;

minimum stage recorded, 0.0 foot at 5 p. m. March 11, 1917. Minimum

stages are caused by closing gates and wheels at power plant above station. 

REGULATION. Operation of storage reservoirs in the headwaters of the river

(see "Regulation" in station description for Red Cedar River near Colfax^

"\ is.), together with storage at power plant above gaging station, regulates

the flow. 

ACCURACY. No discharge measurements have been made, but stage-discharge

relation is believed permanent. Gage read to half-tenths twice daily.

Considerable diurnal fluctuation is observed, so that mean daily gage

height does not represent the average stage. 

COOPERATION. Gage-height record furnished by Wisconsin & Minnesota Light

 & Power Co.

Daily gage height, in feet, of Red Cedar River at Cedar Falls, Wis., for the year

ending Sept. §0, 1921.

Day.

1 

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

3 - ... ...

4. ____ . __ -

5 

6 . 

T. ............ .

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

9 

10 

11. _ .... _ ...

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

13 

14 

15 

16 

17 

18. _____ ....

19 

20.. .,. 

21 

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

23.-.-.. ..

24.. .

26 

26.. ......

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

28 

29 

30 

31.. ___ 

Oct.

3.35

3.40

.75

2.55

2.55

2.45

2.55

2.55

3.35

1.50

3.30

2.90

3.25

3.30

2.90

2.55

.75

3.00

3.05

3.35

2.45

3.55

2.95

2.45

3.50

3.45

3.55

3.65

3.45

2.45

7K .. 

Nov.

3.55

3.65

3.65

2.55

2.55

1.02

3.75

3.65

3.55

3.10

.75

2.55

2.55

2.55

2.45

2.45

9 tt

2.40

3.55

3.65

2.05

3.50

1.08

3.55

3.55

Dec.

3.60

3.50

3.60

1.12

3.55

3.55

2.55

2.95

3.55

2.55

1.08

3.45

3.55

3.55

3.45

3.45

2.95

1.02

2

KA

2.50

2.45

2.35

2.35

.75

1.45

2.45

2.45

2.35

2.45

3.55

Jan.

2.55

2.10

3.55

2.55

3.05

3.55

3.10

1.02

3.60

3.45

2.55

2.55

2.55

2.55

1.12

2.45

2.55

2.40

3.65

3.65

3.60

3.65

3.00

3.05

3.00

3.55

.75

3.55

Feb.

2.40

2.45

2.45

2.45

1,55 2>45

2.45

2.50

2.45

3.00

1.12

3.55

3.55

3.60

3.55

3.55

3.55 1 *\n

3.55

3.55

3.45

3.55

3.55

.75

3.45

Mar.

3.45

3.45

3.35

3.40

3.35

1.60

3.45

3.45

3.45

3.50

3.45

1.08

3.45

3.45

3.45

3.45

3.45

3.55

1.60

3.55

3.80

3.85

3.60

3.55

1.12

3.70

4.35

4.45

4.00

Apr.

3.90

3.80

2.60

3.80

3.75

3.70

3.60

3.55

3.55

1.00

3.55

3.55

3.55

3.45

3.45

3.35

.75

3.45

3.45

3.45

3.45

3.45

3.00

.75

2.95

3.45

3.45

3.45

3.70

3.80

May.

2.00

3.75

3.80

3.70

3.55

3.45

3.45

1.90

3.45

3.45

3.45

3.00

.75

3.45

3.45

3.45

3.45

Q AK.

3.45

.75

3.45

3.45

3.35

3.45

3.45

3.45

.75

1.60

3.45

June.

3.45

3.45

3.35

.75

3.45

3.00

3.30

3.45

3.45

3.45

.75

3.35

3.35

3.35

3.35

3.35

3.35

.75

9 P./Y

3.50

2.20

2.80

2.60

2.40

1.30

3.15

2.65

2.60

3.40

July.

2.15

2.05

.70

1.40

2.35

2.20

3.45

2.80

2.45

1.40

3.60

2.70

2.70

2.90

2.85

2.80

1. 5

2.80

2.40

O AK

3.10

2.55

2.60

.70

2.60

2.50

2.40

2.60

2.70

2.85

1.75

Aug.

2.75

2.70

2.70

2.55

2.65

2.25

.70

2.80

2.35

2.40

2.35

2.3.5

2.40

1.25

2.95

2.90

2.85

2.90

2.80

9 QA

.90

2.95

2.90

2.95

3.00

2.95

2.90

1.40

3.05

3.10

3 Wl

Sept.

3.05

3.15

3.30

1.90

1.75

2.85

3.00

2.95

2.90

1.80

2.85

2.80

2.90

3.05

3.00

3.40

1.85

2.85

3.10

3.10

3.60

3.45

3.30

2.45

3.15

3.10

3.05

3.00

2.90
. UPPER MISSISSIPPI RIVEB BASEST. 75

RED CSDJJl RIVEE A* MENOMONIE, WE.

LOCATION. In sec. 21, T. 28 N., R. 13 W., 900 feet below power house of Wisconsin & Minnesota Light & Power Co., Menomonie, Dunn County, and 

13 miles above confluence of Red Cedar and Chippewa rivers. Wilson Creek 

discharges from right into service reservoir just above station.

DRAINAGE AREA. 1,810 square miles (measured on map issued by Wisconsin 

Geological and Natural History Survey, Edition of 1911; scale, 1 inch==6 

miles).

RECORDS AVAILABLE. June 17, 1907, to September 3, 1908; May 9, 1913, to 

September 30, 1921.

GAGE. Barrett & Lawrence water-stage recorder with a wooden well and shelter; 

installed May 9, 1913, on right bank of river, 1 mile above site of old gage, 

which was attached to a highway bridge about 200 rods west of Chicago & 

Northwestern Railway station west of Menomonie; read from June 17, 1907, 

to September 3, 1908. No relation between datums of the two gages. Gage 

inspected by E. Kausrud.

DISCHARGE MEASUREMENTS. Made from highway bridge 1 mile below gage.

CHANNEL AND CONTROL. Bed at gage composed of heavy gravel; bed at measuring section sandy and subject to shift. Left bank at gage high and not 

subject to overflow; right bank of medium height and is overflowed at flood 

stages; both banks high at measuring section and not subject to overflow.

EXTREMES OP DISCHARGES. Maximum stage recorded during year, 4.50 feet at 

7 p. m. March 28 (discharge, 4,520 second-feet);, minimum stage, 1.93 feet 

at 1.30 p. m. December 16 (discharge, 357 second-feet).

1907-8 and 1913-1921: Maximum discharge, estimated 14,000 second-feet 

March 26, 1920 (maximum gage height was about 8.0 feet; water-stage recorder not operating satisfactorily); minimum stage recorded, 0.50 foot 

November 8, 1907 (discharge, 100 second-feet).

REGULATION. Considerable diurnal fluctuation in stage at gage section is caused 

by operation of power plants of Wisconsin & Minnesota Light & Power Co. 

at Menomonie and Cedar Falls. (See also "Regulation" in station description for Red Cedar River near Colfax, Wis.)

ICE. Stage-discharge relation not affected by ice owing to relatively warm water 

discharged from service reservoir.

ACCURACY. Stage-discharge relation not permanent after the winter. Standard 

rating curve well defined between 650 and 3,460 second-feet and fairly well 

defined above 3,460 second-feet; was used direct October 1 to March 20; 

indirect method for shifting control used March 21 to September 30. Operation of water-stage recorder very satisfactory. Daily discharge ascertained 

by means of the discharge integrator. Records fair.

The following discharge measurement was made by A. O. Olson: 

August 10, 1921: Gage height, 2.36 feet; discharge, 728 second-feet.
76 SUKFACE WATER SUPPLY, 1921, PAET V.

Daily discharge, in second-feetf of Red Cedar River at Menomonie, Wis,, for the year

ending Sept. 80,

Day.

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

2

a::::::::::::::

4 

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

6 ........

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

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

,9-...-.. ...

10 

11-.........-.-.

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

13 

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

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

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

17 

18 .........

19 ..........

20 

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

22 ......

23 

24 

25 

26 

'.7 ....... ....

28 

29 

SO 

31 

Oct.

1,240

1,010

722

1,020

1,200

868

1,070

1,080

1,140

545

1,060

1,100

1,130

1,230

1,170

1,200

533

1,120

1,460

1,220

1,250

1,190

1,190

923

1,190

1,320

1,340

1,340

1,100

1,180

565

Nov.

865

1,190

1,150

1,110

1,110

1,310

540

1,360

1,630

1,350

i ion

1,270

1,280

658

972

1,200

895

1,110

932

1,080

1,020

1,350

1 140

1,380

1,340

1,350

1,210

770

1,170

1,440

Dec.

1,170

1,370

1,370

1,400

850

1,070

1 380

1,500

1,050

1,550

1,160

1,600

1,140

1,400

1,370

1,190

1,120

964

515

798

922

924

876

700

503

460

603

 556

1,160

1,150

Jan.

1,080

1,830

1 4fifl

l,V60

1,010

1,020

1,270

1,440

630

1,120

1,420

1,060

865

850

1,160

604

846

1,120

812

1,010

1,430

1,490

1,050

978

1,380

1,080

1,070

1,200

1,100

680

1,200

Feb.

1,340

970

965

1,090

980

614

1,030

875

974

1,070

950

1,230

710

1,220

1,350

1,380

i AKn

1,560

1,400

720

1,200

1,290

1,310

1,310

1,360

1,360

1 iQfl

Mar.

1,430

1,260

1,380

1,160

1,340

585

1,420

1,350

1 230

1,440

1,'380

620

1,230

1,410

1,350

1,350

1,320

i ^nft

905

1,910

2,430

9 4/tfl

2,370

2,140

1,960

915

*> Ofifl

3,100

2,840

O JOA

Apr.

2,180

1,750

Qlfi

1,760

1,530

1,550

1,740

2,080

1,360

700

1,770

1,900

1,390

1,340

1,530

1,600

ftCA

1,120

1,430

1,600

1,490

1,190

1,210

500

937

1,270

1,450

1,570

1,700

2,570

May.

1,940

1,810

1,720

1,850

1,520

1,650

1,330

873

1,270

1,460

1,560

1,550

1,520

1,280

470

1,980

1,470

1,470

1,440

1,360

1,390

532

1,450

1,500

1,200

1,050

1,390

1,500

736

508

1,180

June.

1,100

1,210

1,020.

1,060

413

1,040

1,290

1,320

1,280

1,720

1,640

571

1,340

1,170

1,010

1,090

1,170

915

573

825

1,060

587

1,180

875

1,000

544

710

693

990

980

July.

970

680

568

516

516

608

1,120

1,130

1,310

588

1,150

1,170

800

1,020

1,070

933

570

758

1,090

1,080

992

945

1,000

588

590

676

741

855

964

1,080

620

Aug.

750

980

862

837

868

843

560

620

745

743

912

700

762

468

491

1,080

1,100

950

945

893

550

592

912

878

1,040

1,150

1,000

616

836

1,440

1,080

Sept.

1,060

1,060

1,260

810

770

1,190

1,160

1,000

1,040

1,100

604

890

1,110

917

1,080

905

1,110

548

928

1,100

1,200

2,040

2,600

2,310

2,220

2,220

1,620

975

1,120

994

Monthly discharge of Red Cedar River at Menomonie, Wis,, for the year ending

Sept. 30, 1921.

[Drainage area, 1,810 square miles.]

Month.

October.,.. ____________ _____

February _ .. _____ _ ___ . .. __

April _ . ____ ____ _ .... .

June ___ .... ______ .... __ . _

July-....... .............................

August _____ __ .....

Discharge in second-feet.

Maximum.

1,460 

1,630 

1,600 

1,830 

1,560 

3,100 

2,570 

1,980 

1,720 

1, 310 

1,440 

2,600

3,100

Minimum.

533 

540 

490 

604 

614 

585 

500 

470 

413 

516 

468 

548

413

Mean.

1,090 

1,150 

1,060 

1,110 

1,130 

1,600 

1,460 

1,350 

1,010 

861 

845 

1,230

1,160

Per square 

mile.

0.602 

.635 

.586 

.613 

.624 

.884 

.807 

.746 

.558 

.476 

.467 

.680

.641

Run-off in 

inches.

r

- 0.69 

.71 

.68 

.71 

.65 

1.02 

.90 

.86 

.62 

.55 

.54 

.76

8.69
UPPER MISSISSIPPI RIVEK BASIN.

BLACK RIVEB AT WEI1ISVILLE, WIS.

LOCATION. In sec. 15, T. 24 N., R. 2 W.', at lower highway bridge in Neillsville, 

Clark County. O'Neill Creek enters from left 1 mile above gage, and 

Cunningham Creek, also from left, 1^4 miles below.

DRAINAGE AREA. 774 square miles (measured on map issued by Wisconsin 

Geological and Natural History Survey, edition of 1911; scale, 1 inch=6 

miles).

RECORDS AVAILABLE. April 6, 1905, to March 31, 1909; December 11, 1913, 

to September 30, 1921.

GAGE. Chain gage fastened to downstream side of highway bridge; read by 

A. Bissell.

DISCHARGE MEASUREMENTS. Made from downstream side of bridge or by 

wading near bridge.

CHANNEL AND CONTROL. Bed composed of heavy gravel and rock. Control 

at head of rapids, a few hundred feet below gage. Banks high and rocky; 

will not be overflowed at gage section.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 12.65 feet at 

8 a. m. March 20 (discharge, 11,800 second-feet); minimum discharge, 

estimated 25 second-feet January 14 (stage-discharge relation affected 

by ice).

1905-1909 and 1913-1921: Maximum stage recorded, 19.8 feet June 6. 

1905 (discharge, about 29,400 second-feet); minimum discharge prdbably 

somewhat less than 5 second-feet in February, 1918 (stage-discharge relation 

affected by ice).

The maximum discharge during flood of October 6, 1911, probably exceeded 29,000 second-feet, but no data are available regarding the stage at 

the gage section.

REGULATION. Several dams on Black River and its tributaries upstream from 

Neillsville are used to create a head for development of power. Operation oi 

these plants causes a slight diurnal fluctuation at the gage, especially during 

winter, when the flow is at a minimum.

ACCURACY. Stage-discharge relation practically permanent except as affected 

by ice. Rating curve fairly well defined between 26 and 18,400 secondfeet. Gage read to quarter-tenths twice daily. Daily discharge ascertained 

by applying mean daily gage height to rating table except for periods during 

which .stage-discharge relation was affected by ice, for which it was -ascertained as indicated in footnote to table of daily discharge. Open-water 

records fair except for extremely low stages, for which they are poor; winter 

records subject to error.

Discharge measurements of Black River at Neillsville, Wis., during the year ending

Sept. SO, 1921,

Date.

Job. 26

Made by 

.....do . . .

Gage 

height.

Feet. 

3.77

3.51

Discharge.

Sec.-ft. 

120

60

Date.

A ittf Q

Made by 

1

Gage 

height.

Feet. 

2.10

Discharge.

Sec.-j1. 

29.8

« Incomplete ice cover; considerable slush ice. 

& No slush or frazil ice.
78 SURFACE WATER SUPPLY, 1921, PART V.

Daily discharge, in second-feet, of Black River1 at Neillsville, Wis., for the year

ending Sept. SO, 1921.

Day.

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

3 

4 

5 . 

6 -

8 

9 

10 

12 

13 

14 

15 

16 

17. 

18 

19 -

20 

21 -

22 

23 

24 ^ 

25 

26 

28.. - .

29-..-.-- ..

30 

31-. ---------

Oct.

35

38

30

32

40

35

45

35

32

30

32

38

39

34

78

78

65

56

52

65

81

73

94

120

104

87

56

53

59

56

Nov.

70

76

86

81

108

122

120

116

104

104

104

100

100

102

86

60

46

43

53

50

120

296

204

65

70

75

85

139

157

173

Dec.

192

254

815

334

278

204

134

139

184

170

130

104

97

216

178

155

145

120

120

120

120

120

120

120

120

120

120

120

120

90

70

Jan.

70

65

75

55

50

55

45

45

35

35

30

30

35 ' 25

40

35

35

30

35

35

355

325

315

345

255

190

140

140

105

105

65

Feb.

75

50

70

50

65

35

70

50

35

65

55,

85

75

95

95

440

255

260

175

145

135

inn

90

60

in

45

35

Mar.

50

100

170

230

295

260

335

415

460

415

460

510

510

460

416

460

460

560

1,010

10,600

10,400

7,910

4,290

2,660

1,980

1,720

3,060

2,260

1,720

1,290

Apr.

1,010

830

770

710

710

770

830

950

950

950

1,080

1,080

890

830

1,010

1,010

830

485

438

374

610

770

770

890

8,480

6,440

3,680

May.

2,260

1,570

1,010

635

610

438

35*

296

250

216

187

162

192

187

184

254

334

535

560

395

296

225

1QA

178

149

830

2,360

1,570

1,220

9 2fifl

June.

1,890

1,290

770

438

315

219

1,010

3,160

0 fifirt

2,760

4,700

3,260

O AflA

890

535

334

244

190

147

116

83

77

64

55

55

45

49

49

40

53

July.

52

65

54

134

WO

on

»7

149

110

IfU

90

76

55

55

108

63

56

187

134

84

58

49

50

3d

45

40

41

108

QO

112

64

Aug.

54

49

46

40

38

41

34

32

32

40

63

86

CD

38

32

28

28

28

27

26

28

33

35

00

33

35

35

38

A9

&ft

39

Sept.

45

37

37

38

43

37

35

40

43

40

39

60

44

37

49

98

71

90

142

149

184

278

260

192

132

116

90

77

68

NOTE. Stage-discharge relation affected by ice Nov. 12, 184 25-27, and Dec. 16 to Mar. 16; discharge 

ascertained by means ol gage heights, two discharge measurements, observer's notes, and weather records.

Monthly discharge of Black River at Neillsaille, Wis., for the year ending Sept. 30,

1921.

[Drainage area, 774 square miles.]

Month.

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

May ____ - _____ - ____________

July- ...... ........ .... ...

Discharge in second-feet.

Maximum.

120 

296 

334 

355 

440 

10,600 

8,480 

2,360 

4,708 

187 

86 

278

10,600

Minimum.

30 

43 

70 

25 

35 

50 

374 

149 

40 

39 

26 

35

25

Mean.

56.0 

104 

156 

103 

100 

1,880 

1,440 

647 

939 

84.5 

39.6 

87.1

471

Per square 

mile.

0.0724 

.134 

.202 

.133 

.129 

2.43 

1.86 

.836 

1.21 

.109 

.0512 

.113

.609

Etm-o;T in 

inches.

0.08 

.15 

.23 

.15 

.13 

2.80 

2.08 

.96 

1.35 

.13 

.06 

.13

8.25
UPPEB MISSISSIPPI RIVER

LA CROSSE RIVER NEAR WIST SALEM, WIS.

LOCATION. In sec. 32, T. 17 N., R. 6 W., at highway bridge 2 miles west of 

West Salem, La Crosse County, and 10 miles above mouth of river. Dutch 

Creek enters from right 6 miles above station.

DRAINAGE AREA. 412 square miles (measured on map issued by Wisconsin 

Geological and Natural History Survey, edition of 1911; scale, 1 inch= 

6 miles).

RECORDS AVAILABLE. December 22, 1913, to September 30, 1921.

DISCHARGE MEASUREMENTS. Made from bridge to which gage is attached or 

by wading.

CHANNEL AND CONTROL. Bed composed of heavy gravel and rock; free from 

vegetation. Right bank high and not subject to overflow; left bank, 

above the gage, low and subject to overflow at flood stages. Control 

for low stage is a rocky riffle having a fall of about 6 inches; is apparently 

drowned out at a stage of about 2.2 feet (discharge, 551 second-feet), causing 

a reversal in the rating curve.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 3.95 feet at 6 

p. m. June 10 (discharge, 1,100 second-feet); minimum stage, 0.75 foot 

at 7 a. m. September 3 (discharge, about 96 second-feet).

1913-1921: Maximum stage recorded, 8.45 feet at 6 p. m. March 16, 

1919 (discharge, about 3,620 second-feet); minimum stage recorded, 0.75 

foot at 7 a. m. September 3, 1921 (discharge, about 96 second-feet).

ICE. Stage-discharge relation seriously affected by ice.

 REGULATION. Diurnal fluctuation at the gage, amounting to from 0.10 to 0.40 

foot at low stages, is paused by operation of power plants, especially at 

Neshonoc dam a few miles above station.

ACCURACY. Stage-discharge relation permanent except as affected by ice. 

Rating curve well defined between 175 and 2,300 second-feet. Gage read 

to quarter-tenths twice daily. Daily discharge ascertained by applying 

mean daily gage height to rating table except for periods during which 

stage-discharge relation was affected by ice, for which it was ascertained 

as indicated in footnote to table of daily discharge. Open-water records 

good except those for low stages which are fair; winter records fair.

Discharge measurements of La Crosse River near West Salem, Wis., during the 

year ending Sept. 80,

Date.

Jan. 18

JWay 26

Made by 

S. H. Collins.-. .......

Gage

Feet. 

o 1. 86

1.65

Discharge.

Sec.-ft. 

202

316

Date. Made by 

A. O. Olson.. ..........

Gage 

height.

Feet. 

1.45

Discharge.

Sec.-ft. 

231

« Stage-discharge relation affected by ice.
80 SURFACE WATER SUPPE.T, 1921, PAjRT V.

Daily discharge, in second-feet, of La Crosse River near West Salem, Wis., for the 

year ending Sept. SO, 1921.

Day.

1 

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

3 

4 

5 

6. .- .. ...

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

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

9 ..... ..

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

11 

12 

13

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

15... .....

16 

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

18 

19 

20 

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

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

23 

24 .

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

26 -

27 

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

29 

30 -

31.. .......

Oct.

181

200

158

184

193

187

193

193

184

144

181

196

216

212

219

328

268

268

268

288

288

248

248

177

230

219

206

206

196

219

177

Nov.

219

308

328

288

288

308

328

416

394

328

328

328

308

193

210

230

250

268

248

268

241

394

350

328

288

288

268:

234

268

288

Dec.

288

288

308

268

206

268

234

248

248

248

288

248

248

288

288

248

240

230

220

210

250

290

290

275

255

240

230

210

195

185

175

Jan.

195

205

220

235

240

255

260

270

280

290

280

260

235

210

205

205

205

205

205

210

680

835

750

640

505

460

415

460

460

415

330

Feb.

310

270

230

330

370

290

250

310

350

395

460

395

330

290

310

330

370

250

210

250

230

210

195

230

195

210

210

Mar.

210

210

210

210

230

210

210

210

230

244

248

288

234

308

308

328

308

328

308

288

350

288

328

268

308

308

268

308

268

268

234

Apr.

230

219

196

234

234

209

206

216.

206

177

216

219

223

223

248

268

200

241

216

219

219

206

209

200

248

'328 244

484

678

506

May.

350

328

308

268

268

268

268

230

244

237

206

219

234

219

177

187

248

268

350

350

 808

268

328

288

237

268

416

673

438

328

371

June.

350

328

288

268

187

226

216

749

862

972

944

484

371

438

416

371

268

308

268

308

268

268

230

219

226

1 1«8

212

350

288

241

July.

268

230

187

187

216

208

248

248

200

164

181

170

173

200

328

288

216

248

328

308

234

288

196

181

206

209

177

196

193

209

151

Aug.

196

248

209

209

212

184

149

206

146

158

193

203

193

155

196

206

184

124

149

184

134

200

184

136

110

153

144

142

142 177-

-179

Sept.

173

142

141

142

156

288

219

219

184

177

135

168

17ft

170

187

248

350

200

241

244

288

288

234

248

160

200

226

206

181

177

NOTE. Stage-discharge relation affected by ice Nov. 15-17 and Dec. 17 to Mar. 9; discharge ascertained 

by means of gage heights, one discharge measurement, observer's notes, and weather records.

Monthly; discharge of La Crosse River near West Salem, Wis., for the year ending

Sept. SO, 1921.

[Drainage area, 412 square mites.}

Month.

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

February. _ ... ....... ...............

July....... _ 

September. _ _ ___ _ . ___ ....

The year.. ____________ ..

Discharge in second-feet.

Maximum.

328 

416 

308 

835 

460 

350 

678 

573 

972 

328 

248 

350

972

Minimum.

144: 

193 

175 

195 

195 

210 

177 

177 

168 

151 

110 

135

110

Mean.

215 

293 

249 

343 

288 

268 

257 

292 

370 

220 

174 

208

264

Per square 

mile.

0.522 

.711 

.604 

.833 

.699 

.650 

.624 

.709 

.898 

.534 

.422 

.500

.641

Run-off in 

inches

0.150' 

.79 

.70 

,.M 

.73 

.75 

.70 

.82 

1.00 

.62 

.49 

.56

8.72
UPP1E MISSISSIPPI KIVEB BASIF. 81

UPPER IOWA RIVER NEAR DECORAH, IOWA.

LOCATION. Near highway bridge in Freeport, 3 miles below Decorah, Winneshiek County, and 4 miles above upper power plant of Interstate Power Co. 

Nearest tributary, Trout Run, enters from right 1 mile above station.

DBAINAQE AREA. 560 square miles (measured on United States Geological 

Survey base map; scale, 1:500,000).

RECOBDS AVAILABLE. August 27, 1913, to November 21, 1914; May 12, 1919, 

to September 30, 1921.

GAGE. Gurley 7-day water-stage recorder on left 'bank 500 feet 1 above highway 

bridge; installed August 28, 1920. Chain gage attached to' handrail of 

highway bridge used prior to that date. Water-stage recorder at datum 

3.96 feet higher than datum of chain gage. Observer, Mrs. W. D. Gross.

DISCHABGE MEASUREMENTS. Made from highway bridge or by wading.

CHANNEL AND CONTROL. Bed at measuring section composed of sand and gravel; 

shifting. Control formed by rock ledge; permanent.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 10,21 feet at 

11 a. m. May 27 (discharge, 13,200 second-feet); minimum stage, 1.92 feet 

October 8 and 9 and August 25, 26, and 29 (discharge, 123 second-feet).

1913-14; 1919-1921: Maximum discharge same as for 1921; minimum 

stage, 2.15 feet (chain-gage datum) September 10 and 13-16,1913 (discharge, 

37 second-feet).

ICE. Stage-discharge relation affected by ice for short periods during extremely 

cold weather.

REGULATION. Operation of several mills in Decorah may cause slight diurnal 

fluctuation.

ACCURACY. Stage-discharge relation permanent except as affected by ice. 

Rating curve well defined between 100 and 12,000 second-feet. Operation 

of water-stage recorder fairly satisfactory. Daily discharge ascertained by 

applying to rating table mean daily gage height obtained from recorder graph 

by inspection except for periods of ice effect and periods during which recorder 

did not operate, for which it was ascertained as indicated in footnote to 

daily-discharge table. Records good.

Discharge measurements of Upper Iowa River near Decorah, Iowa, during the year

ending Sept. SO, 1921.

[Made by E. D. Burchard.]

Date.

Dec. 8 ........

Jan. 14. .......

May 26 __ ....

27........

Gage 

height.

Feet. 

2.23

2.01

6.55

10.00

Discharge.

Sec.-ft. 

256

166

3,750

11,800

Date.

May 28........

28. ...... .

29.... ....

29.... _ .

4B.

Feet. 

9.23

8.91

5.91

5.19

Discharge.

Sec.-ft. 

7,960

6,920

3,020

2,370

Date.

May 30 ........

June 12. .......

13. .......

Sept. 28... _ ..

height.

Feet. 

4.51

a64

3.08

2.19

Discharge.

Sec.-ft. 

1,700

1,040

700

224
82 STJEFACE WATER SUPPLY, 1921, PART V.

Daily discharge, in second-feet, of Upper Iowa River near Decorah, Iowa, for the

year ending Sept. 30, 1921.

Day.

1 _ ... -

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

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

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

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

6... ... . .

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

8

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

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

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

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

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

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

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

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

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

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

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

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

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

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

23-. ........

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

35.. ............

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

37. ..........

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

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

30....;.,.......

31 ..........

Oct.

131

127

131

138

138

146

134

123

123

127

134

149

161

273

688

317

295

273

352

231

215

180

168

164

157

149

146

146

157

Nov.

317

317

235

248

227

363

461

411

461

363

340

252

273

273

295

256

260

252

244

239

514

 *Mfl

295

317

295

269

260

265

273

295

Dec.

317

317

317

317

295

295

260

227

235

235

227

227

244

273

157

190

190

170

200

240

227

997

240

220

220

200

203

195

Jan.

223

239

231

235

231

235

239

223

200

190

180

180

170

176

150

150

200

172

461

1,090

750

480

500

520

500

387

363

317

9O1

Feb.

273

273

252

244

239

190

160

200

219

235

231

219

223

363

1,530

1,530

658

688

542

436

436

461

V7

295

317

317

273

269

Mar.

295

295

273

265

317

317

273

269

360

235

248

244

235

239

256

235

227

227

248

295

295

295

295

317

317

317

363

363

461

387

317

Apr.

295

273

260

248

231

235

239

239

363

363

295

260

239

248

265

273

340

317

265

239

252

260

239

256

239

231

317 AR-t

658

fit 4

May.

440

420

380

360

340

320

317

273

317

461

542

880

1,230

782

688

658

1,800

2,600

2,400

1,900

1,300

950

782

750

1,020

3,570

8,580

9,040

3,240

x "MO

3,240

June.

1,610

1,300

1,090

950

880

782

688

658

628

950

950

880

658

 58

628

488

436

387

387

2,120

719

436

387

363

599

436

488

340

340

317

July.

295

317

340

317

411

295

340

273

265

260

252

239

239

231

223

231

199

436

34P

344

203

203

231

340

191

183

172

168

164

161

149

Aug.

157

180

153

149

153

149

146

142

134

153

570

211

161

153

146

138

164

153

187

161

134

142

142

131

123

123

131

127

123

252

436

Sept.

195

215

199

317

461

199

157

153

153

180

164

138

142

340

570

1,160

1,860

461

411

488

514

387

317

295

363

273

265

239

223

207

NOTE. Stage-discharge relation affected by ice Dec. 16-20,23-29, Jan. 9-18,23-27, and Feb. 6-8; discharge 

ascertained by means of gngp heights, one discharge measurement, and weather records. Water-stage recorder did not operate satisfactorily May 1-6 and 17-20; discharge estimated from partial gage-height record.

Monthly discharge of Upper Iowa River near Decorah, Iowa, for the year ending

Sept. 80, 1921.

[Drainage area, 560 square milea-l

Month.

November ______ _____ .1..

January ________________ . ......

February.., ______ ....................

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

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

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

June... ____________________

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

August _______________________

September.. ________________ ..

The year.. _______________

Discharge in second-feet.

Maximum.

688 

514 

317 

1,090 

1,530 

461 

658 

9,040 

2,120 

436 

570 

1,860

9,040

Minimum.

123 

227 

157 

150 

160 

227 

231 

273 

317 

149 

123 

138

123

Mean.

191 

307 

238 

319 

407 

290 

397 

1,700 

718 

. 255 

175 

368

440

Per square 

mile.

0.341 

.548 

.425 

.570 

.727 

.518 

.530 

3.04 

1.28 

.455 

.312 

.657

.786

Run-off in 

inches.

0.39 

.61 

.49 

.66 

.76 

.90 

.59 

3.50 

1.43 

.52 

.36 

.73

10.64
TTFFEE MISSISSIPPI HtTEE

WISeONSHr BCTXR AT WHIRLPOOL RAPIDS, NEAR RHIRBLANDER, WB.

LOCATION. In sec. 4, T. 35 N., R. 8 E., at head of Whirlpool Rapids, 1 mile 

below mouth of outlet of Crescent Lake, which comes in from right, 3 miles 

downstream from power station of Rhinelander Power Co., and 10 miles 

southwest of Rhinelander, Lincoln County.

DBAINAGE ABBA. 1,160 square miles (measured on map issued by Wisconsin 

Geological and Natural History Survey, edition of 1911; scale, 1 inch=6 

miles).

RECORDS AVAILABLE. September 15,1915, to September 30,1921. December 1, 

1905, to September 30, 1915, records were collected at a station about 3 

miles upstream.

GAGE. Stevens continuous water-stage recorder with wooden well and shelter, 

on right bank; inspected by C. W. Jewell.

DISCHARGE MEASUREMENTS. Made from cable 150 feet upstream from gage.

CHANNEL AND CONTROL. Bed composed of heavy gravel and rock. Banks 

medium high and not subject to overflow. Control is head of rapids, 100 

feet downstream from gage; well defined and permanent.

EXTREMES OF DISCHARGE. ^-Maximum stage recorded during year, 4.65 feet at 

5 a. m. April 30 (discharge, 3,620 second-feet); minimum stage recorded, 

0.75 foot at 6 p. m. December 12 (discharge, 196 second-feet).

1905-1921: Maximum stage recorded, 5.61 feet at 10 p. m. April 22, 1916 

(discharge, 5,250 second-feet); minimum discharge, practically no flow, at 

old station, during August and September, 1907, and June and July, 1908; 

minimum stage at present location, 0.65 foot at 8 p. m. July 7, 1918 (discharge, 165 second-feet). Discharge at present location of station will 

probably never be zero. Minimum discharge caused almost entirely by 

regulation.

REGULATION. Above the station are 14 reservoirs 8 which are operated by the 

Wisconsin Valley Improvement Co. for the purpose of regulating the flow 

of Wisconsin River. The aggregate capacity of these reservoirs is 2.8 billion 

cubic feet during the summer and 3.6 billion cubic feet during the winter. 

Owing to the operation of these various storage reservoirs and the service 

reservoirs of three power plants on the river above, the flow at the station 

is not natural.

ACCURACY. Stage-discharge relation permanent except as affected by ice. 

Rating curve well defined between 212 and 5,410 second-feet. Operation 

of water-stage recorder satisfactory except as indicated in footnote to table 

of daily discharge. Daily discharge ascertained by means of discharge 

integrator except for period of ice effect and period during which recorder 

was not operating for which it was ascertained as indicated in footnote to 

table of daily discharge. Open-water records excellent except those for 

period during which recorder was not operating .which are fair; winter 

records possibly poor.

Discharge measurements of Wisconsin River at Whirlpool Rapids, near Rhinelander, 

Wis., during the year ending Sept. SO, 1921.

Date.

Dec. 28 < 

Feb. 4«

Made by 

S. B. Soul6..._ . .... 

S. R, Collins ...........

-.- do... ...............

Gage

Feet. 

2.66

2.53

2.38

Discharge.

Sec.-ft. 

910

948

856

Date.

July 18

Made by 

A. O. Olson... __ ....

Gage 

height.

Feet. 

4.23

i06

Discharge.

Sec.-jt. 

3,000

758

« Measurement made from highway bridge 2 miles above station and just below Hat Rapids power plant. 

Ice along shore.

8 Information concerning these reservoirs, based on maps and data furnished by W. E. Brooks, manager 

of Wisconsin Valley Improvement Co., and data collected by the engineering department of the Railroad 

Commission of Wisconsin, is contained in Water-Supply Paper 405, p. 127.
84

Daily discharge, in second-feet, of Wisconsin River at Whirlpool Rapids, near 

Rhinelander, Wis., for the year ending Sept. SO, 1921.

Day.

1.^ ....

2....... __ ...

a:... .... 4. 

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

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

7..- . .......

S-. ............

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

10- 

11 ....... 

12 1<*

14 

15 .. ..

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

17 

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

19.. 

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

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

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

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

24...... __ ....

25 

26 

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

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

29.. .....

30.. .

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

Oct.

830

514

296

570

590

4.ft9

459

478

452

500

592

487

560

521

736

781

640

618

594

734

942

832

764

780

742

605

772

578

616

541

610

Nov.

556

714

898

851

737

600

445

400

403

457

576

543

478

333

371

398

472

357

340

366

398

413

576

560

540

514

523

330

432

585

Dec.

579

550

610

593

438

400

538

562

496

362

348

274

417

976

863

766

923

850

510

495

728'

620

818

779

710

772

7dfl

805

909

Q74

961

Jan.

987

857

1 030

987

QflQ

922

974

668

1,090

922

857

692

753

844

857

716

857

883

857

857

844

883

792

902

Add

922

844

857

792

Feb.

844

902

902

792

QfiS

870

844

870

883

844

766

818

1 600

1,150

1,160

1,100

1,170

1,110

1,060

992

1,150

1,030

1,110

1,060 i fun

1,020

662

Mar.

970

1,010 '872

975

1,000

1,140

931

914

905

916

878

880

583

544

568

736

570

623

1,060

1,580

1,350

1,420

1,520

1,690

1,770

2,080

2,500

2,880

2,310

2,440

2,890

Apr,

2,640

2,620

2,680

2,220

2,000

2,230

2,550

1,910

1,950

1,970

1,980

1,760

1,660

1,810

1,780

1,500

1,420

1,360

1,060

1,320

1,040

1,000

1,480

1,420

1,680

2,300

3,060

3,020

3,230

May.

3,360

3,220

2,900

2,710

2,810

2,780

2,450

1,980

2,060

1,720

1,380

1,860

1,560

1,500

1,210

1,170

1,020

861

1,080

1,070

1,100

970

1,090

1,000

985

991

928

1,080

870

1,060

1,190

June.

1,200

1,130

1,260

1,160

1,040

1,320

1,130

1,180

1,200

1,210

1,300

1,180

1,330

1,030

1,040

969

990

979

734

672

1,000

975

979

715

665

474

505

540

685

661

My.

671

717

536

410

652

766

682

705

678

602

627

742

738

754

800

881

762

713

992

885

917

850

761

550

640

672

768

677

754

672

686

Aug.

652

652

544

608

750

744

890

393

520

520

492

744

666

738

648

684

684

453

585

549

792 "905

995

792

702

1,120

950

1,180

1,200

1,150

855

Sept.

821

762

837

695

472

510

728

598

606

700

622

642

742

612

654

672

762

696

584

848

1,100

986

' 960

906

700

640

848

980

936

1,070

NOTE. Stage-discharge relation affected by ice Dec. 19 to Feb. 13; discharge based on gage readings and 

discharge measurements at Hat Bapids power plant, and comparison with flow of Wisconsin River at 

Merrill, Wis. Recorder not operating during period Aug. 3-28; discharge ascertained by means of gage 

heights from Weather Bureau gage at Hat Bapids and comparison with flow of Wisconsin River at Merrill,

Wis.

Monthly discharge of Wisconsin River at Whirlpool Rapids, near Rhinelander, Wis., 

for the year ending Sept. 30, 1921.

[Drainage area, 1,160 square miles.]

Month.

October.. _ ____ _ _

January. . __.

March ________ __ . .... 

April. ........

June _________ _ . _ ....

July..... __. ...

August _____________ .. ...

Discharge in second-feet.

Maximum.

942 

898 

976 

1,090 

1,600 

2,890 

3,230 

3,360 

1,330 

992 

1,200 

1,100

3,360

Minimum.

296 

330

274 

, 668 

662 

544 

1,000 

861 

474 

410 

393 

472

274

Mean.

620

506:

657 

873 

979 

1,310 

1,970 

1,610 

975 

718 

747 

756

975

Per square 

mile.

0.534 

\ .43fli 

.566 

.753 

.844 

1.13 

1.70 

1.39 

.841 

.619 

.644 

.652

.841

Run-off In 

inches.

a 62 

r .49 

.65 

.87 

.88 

1.30 

1.90 

1.60 

.94 

.71 

.74 

.73

11.43
UPPER (MISSISSIPPI RIVER

WISCONSIN RIVER AT MERRIII, WIS.

LOCATION. At highway bridge at east end of Merrill, Lincoln County, 1,000 feet 

below power house of Merrill plant of Wisconsin Valley Lighting Co. and 

half a mile below mouth of Prairie" River, whieh comes in from left.

DRAINAGE AREA. 2,630 square miles.

RECORDS AVAILABLE. November 16, 1902, to September 30, 1921.

GAGE. Stevens water-stage recorder installed September 11, 1914. November 

16, 1902, to June 17, 1903, staff-gage; June 17, 1903, to September 10, 1914, 

chain gage attached to downstream side of highway bridge; datum same 

since June 17, 1903, Records prior to June 17, 1903, questionable. Recorder inspected by O. F. Lueck.

DISCHARGE MEASUREMENTS. Made from highway bridge a few feet upstream 

from recording gage.

CHANNEL AND CONTROL. Bed composed of heavy gravel and rock; nearly permanent. Small island below gage and small rapids on either side probably 

constitute control. Banks fairly high and are seldom overflowed.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 10.12 feet at 

7 p. m. April 27 (discharge, 14,800 second-feet); minimum stage recorded, 

2.95 feet at 6 a. m. August 1 (discharge, about 425 second-feet); minimum 

discharge caused by regulation.

1902-1921: Maximum stage recorded, about 17.5 feet at 5 a. m. July 24, 

1912 (discharge, about 45,000 second-feet); minimum stage, 2.45 feet September 26, 1908 (discharge, about 90 second-feet).

REGULATION. Above the gaging station are 17 reservoirs,4 which are operated by 

Wisconsin Valley Improvement Co. for the purpose of regulating the flow 

in Wisconsin River. The aggregate capacity of these reservoirs is about 

6J billion cubic feet. In addition to the above reservoirs, there are on 

Wisconsin and Tomahawk rivers above the station eight dams operated for 

power.

ACCURACY. Stage-discharge relation practically permanent except as affected 

by ice. Rating curve fairly well defined between 800 and 19,400 secondfeet. Operation of water-stage recorder very satisfactory. Daily discharge ascertained by means of discharge integrator. Open-water records 

excellent; winter records fair.

«

Discharge measurements of Wisconsin River at Merrill, Wis., during the year ending

Sept. 30, 1921.

Date.

Qet. 28 

Dec. 28*

Feb. 2-

Made by 

D..W. EobeWsl ,.,..

&.

feet. -"' fc/lflK 

5.22

4.69

Discharge.

Sec.-ft. 

; 1,080 ! 

1,980

1,640

Date.

Mm. 2f«- 

July 15

Made by 

 S. R. Gowns." . _ 

A. O. Olson ............

height.

Feet. 4t»; 

4.90

Discharge.

Sec.-ft. i,,«7e

1,890

. Ice had formed on river wherever current was sluggish.

* Information concerning these reservoirs, based oh maps and data furnished by1 the manager of Wisconsin Valley Improvement Co. and data collected by the engineering department of Wisconsin Railroad 

Commission, is contained in Water-Supply Paper 405, p. 127.
SURFACE WATER SUPPLY, 1921, PART V.

Daily discharge, in second-feet, of Wisconsin River at Merrill, Wis., for the year

ending Sept. 30, 1921.

Day.

1 ... .... .

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

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

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

S>. .............

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

7-..-..-.......

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

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

10 

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

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

IS-'.-...-......

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

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

16 

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

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

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

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

21... .

22-..- ....,

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

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

25 . 

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

27 ........

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

29. . .

30...'...........

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

Oct.

1,600

1,490

1,500

1,250

1,400

1,360

1,370

1,270

1,250

1,310

1,000

1,100

1,190

1,200

1,420

1,560

1,800

1,130

1,670

1,690

2,090

2,380

2,300

2,150

1,200

2,020

1,720

1,560

1,680

1,470

1,590

Nov.

1,420

2,020

1,720

1,870

2,120

1, 790

1,720

1,200

1,550

1,290

1,410

1,150

1,180

1,090

1,100

1,180

1,290

1,360

1,070

1,230

1,390

948

1,370

1,540

a, 300

1,510

1,400

1,100

1,670

Dec.

1,520

1,710

1,700

1,680

1,680

1,240

1,610

1,370

1,550

1,530

1,380

1,270

1,010

1,790

1,770

1,880

1,950

1 Q^ifi

1,670

1,150

1,540

1 660

1,600

1,730

1,670

1 KKfY

1 94ft

1.980

1,970

2,340

9 fkifl

Jan.

1,800

1,620

1,430

1,860

1,560

1,450

1,480

1,530

1,480

982

1,760

1,500

1,440

1,200

1,330

1,550

990

1,430

1,470

1,390

1,510

1,730

1,380

1,890

1,760

1,630

1,400

1,680

1,730

Feb.

1,560

1,540

1,420

1,600

1,280

1,610

1,240

1,600

1,570

1,400

1,470

1,380

1,620

1,300

2,060

1,890

1,720

1,840

1,660

1,840

1,360

1,850

1,700

1,640

1,580

1 flSfl

'1, 640

1,110

Mar.

1,600

1,720

1,640

1,650

1,680

1,750

1,720

1,980

1,640

1,760

1,790

1,800

1,760

1,030

1,530

1,510

1,460

1,630

1,700

8,530

9,840

6,820

6,880

6,790

6,470

7,170

9,660

10,600

9,600

7,810

6,540

Apr.

6,470

5,790

5,500

5,820

5,640

5,500

6,860

6,150

6,220

5,310

6,160

4,930

4,710

4,630

4,880

4,990

4,320

3,770

3,090

3,130

3, 2*10

3,940

5,420

4,610

4,540

4,910

11,200

13,500

13,500

11,700

May.

9,410

8,080

6,990

6,080

5,880

5,290

4,990

4,320

3,370

3,360

2,670

2,240

3,260

3,000

2,920

2,420

2,660

2,700

2,540

2,540

2,540

2,240

1,600

2,160

2,080

1,960

2,250

3,170

3,320

2,570

3,240

June.

3,270

3,320

3,230

2,960

2,320

2,200

3,450

4,220

4,180

4,760

5,540

4,880

3,840

3,010

2,500

2,310

2,220

1,970

1,770

1,170

],640

1,620

1,560

1,750

1,820

' 3,540

1,540

1,610

1,480

1,280

July.

1,100

1,510

1,820

1,010

953

1,640

1,410

1,680

1,870

1,660

1,200

1,420

1,480

1,750

1,930

1,600

1,780

1,260

1,390

1,570

2,000

1,710

1,460

1,220

1,200

1,340

1,420

1,290

1,250

1,470

1,320

Aug.

1,120

1,500

1,610

1,550

1,390

1,240

1,140

968

1,120

1,100

1,290

1,270

1,350

1,780

1,450

1,470

1, 260

1,410

1,460

1,280

1,270

980

1,250

1,550

1,520

1,440

1,850

2,040

1,430

1,470

2,180

Sept.

1,900

1,620

1,730

1,560

1,370

958

1,070

1,850

1,440

1,290

1,350

1,050

1,280

1,770

1,440

1,480

1,780

1,640

1,230

1,400

1,950

2,140

1,970

1,970

2,010

1,180

1.460

1,630

1,630

1,790

NOTE. Stage-discharge relation affected by ice Dec. 14 to Mar. 1; discharge ascertained by means of the 

discharge integrator, allowance being made for the effect of backwater from ice on basis of three discharge 

measurements, observer's notes, and weather records.

Monthly discharge of Wisconsin River at Merrill, Wis., for the year ending Sept.

30, 1921.

[Drainage area, 2,630 square miles.]

Month.

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

November. __ ___ __ . ... ....

December. _____ ... _____ '...........

February ________ _ ___ __ . ___

April...... . __.._

June ______________ ________

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

August.. . _ . __________________

The year.... . ... __________

Discharge in second-feet.

Maximum.

.2, 380 

2,120 

2,340 

1,890 

2,060 

10,500 

13,500 

9,410 

5,540 

2,000 

2,180 

2,140

13,500

Minimum.

1,000 

948 

1,010 

982 

1,110 

1,030 

3,090 

1,600 

1,170 

963 

968 

958

948

Mean.

^ 1,540 

1,420 

1,640 

1,520 

1,570 

4,130 

5,940 

3,610 

2,630 

1,470 

1,410 

1,560

2,370

Per square 

mile.

0.586 

.540 

.624 

- .578 

.697 

1.57 

2.26 

1.37 

1.00 

.569 

.636 

.593

.901

Run-off in 

inches.^

0.68

.eo

.72 

.67 

.62 

1.81 

2.52 

1.68 

L12 

.64 

.62 

.69

12.24
UPPER MISSISSIPPI KIVEB BASIEF. 8^7 

WISCONSIN EIVER AT KUOWITON, WIS.

LOCATION. In N. | sec. 29, T. 26 N., R. 7 E., 50 feet below left end of combination railroad and highway bridge of Chicago, Milwaukee & St. Paul Railway 

on State trunk highway No. 73 at Knowlton, Marathon County, 1| miles 

below mouth of Big Eau Pleine River, which enters from right.

DRAINAGE AEEA. 4,360 square miles (measured on map issued by Wisconsin 

Geological and Natural History Survey, edition of 1911; scale, 1 inch = 6 

miles).

RECOKDS AVAILABLE. July 13 to September 30, 1921. Gage heights obtained 

since May 1, 1915, published by United States Weather Bureau in "Daily 

river stages."

GAGE. Gurley water-stage recorder in wooden shelter 50 feet below left end of 

bridge; installed August 6, 1921; inspected by W. T. Gunther. Friez 

water-stage recorder in same shelter used July 13 to August 5, 1921. United 

States Weather Bureau used a chain gage on downstream handrail of bridge 

about 150 feet from left end; installed July 15, 1914. Recording gages set 

to same datum as Weather Bureau chain gage.

DISCHARGE MEASUREMENTS. Made from downstream side of bridge. Extremely 

low-stage measurements are made by wading or from a boat opposite a 

small island about 2,500 feet below gage. Measuring conditions poor at 

bridge below a discharge of about 5,000 second-feet.

CHANNEL AND CONTROL. Bed composed of sand and light gravel. Control 

not well defined; there is, however, a decided contraction of channel at 

island about 2,500 feet below gage. Right bank high; will seldom be overflowed. Left bank medium high; is overflowed at extreme flood stages.

EXTREMES OF DISCHARGE. Maximum discharge during period not determined; 

minimum stage recorded, 1.00 foot at 2 a. m. August 15 (discharge, about 

900 second-feet).

ICE. Stage-discharge relation seriously affected by ice.

REGULATION. No storage reservoirs discharge into Wisconsin River between 

Knowlton and Merrill. See "Regulation" in station description of Wisconsin River at Merrill (p. 85). Between Knowlton and Merrill are four dams 

operated for power.

ACCURACY. Stage-discharge relation probably permanent. Rating curve, 

based on measurements made during 1921 and 1922, fairly well defined 

between 1,600 and 30,000 second-feet; poorly defined below 1,600 secondfeet. Operation of water-stage recorder satisfactory except during period 

July 24-31. Daily discharge ascertained by means of the discharge integrator, except for period during which recorder did not operate, for which 

it was not determined. Records fair.

Discharge measurements of Wisconsin River at Knowlton, Wis., during the year

ending Sept, SO, 1921.

[Made by S. B. Soul6.]

Date.

Dec. 6. ................... ...................:... ......-. ......-.... .. ... ......

Gage

height.

Feet.

2.75

3.73

3.20

Discharge.

Sec.-ft. 

2,270

3,790

2,700
88 SUBFACE WATER StlTfLY, 1921, PART V.

Daily discharge, in second-feet, of Wisconsin River at Knowlton, Wis., for the year

ending Sept. SO,

Day.

1 _ __

2

3

4 

5... 

6 ,. .

7.. .......

8 

9..... .

10........

July. Aug.

2,450

2,600

2,450

2,300

2,390

2,220

1,640

1,190

2,320

2,060

Sept.

2,210

2,620

2,550

2,090

2,140

2,430

2,390

2,180

Day.

11.. ....

12

13 

14.........

15.........

!«. ... ..

17.. .

18.- 

1O

20-. ..

July.

2,550

2 340

2,860

2,700

2,220

2 480

2,460

Aug.

1,860

1,790

1,800

1,460

1,350

1,900

1,880

2,050

2,100

2,060

Sept.

1,820

V730

; £ 230

1,960

1,760

2,040

2,220

1,980

1,870

2,480

Day.

21..,...--.

22...- -.

23. 

24 _ 

26 

26 . .

27.. 

28 

29.. 

30 

31 

July.

2,200

2,230

2,200

Aug.

1,630

1,680

2,110

2,020

1,930

1,960

1,880

1,400

2,090

2,500

2,140

Sept.

2,340

2,410

2*830'

2,340

2,630

2,400

2,2«0

2,300

2,410

NOTE. No record obtained, discharge not determined, July 24-31.

Monthly discharge of Wisconsin River at Knowlton, Wis., for the year ending

Sept. SO, 1921.

[Drainage area, 4,360 square miles.] >

Month.

Discharge in second-feet.

Maximum.

2,500 

2,830

Minimum.

1,190 

1,610

Mean.

1, 970 

2,220

Per square 

mile.

0.452 

.509

Run-off, in 

inches.

0.52

.57

WISCONSIN RIVER NEAR HEKOOSA, WIS.

LOCATION. In sec. 15, T. 21 N., R. 5 E., 1| miles below Nekoosa, Wood County. 

Tenmile Creek enters from left 4 miles below station, and Big Roche a Cri 

Creek, also from left, 38 miles below.

DRAINAGE AREA. 5,500 square miles (measured on map issued by Wisconsin 

Geological and Natural History Survey, edition of 1911; scale, 1 inch=6 

miles).

RECORDS AVAILABLE. May 21, 1914, to September 30, 1921.

GAGE. Stevens water-stage recorder, installed July 18, 1916, in wooden shelter 

on right bank; prior to that date Gurley water-stage recorder at same location. Gage attended by Henry Mans.

DISCHARGE MEASUREMENTS. Made from a cable a short distance upstream 

from gage.

CHANNEL AND CONTROL. Bed composed of gravel; clean; practically permanent. Banks high and are seldom overflowed.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 13.2 feet at 

11.30 p. m. March 22 (discharge, 39,400 second-feet); minimum discharge, 

estimated 635 second-feet February 1 (stage-discharge relation affected 

by ice).

1914-1921: Maximum stage recorded, about 15.3 feet during the flood 

of June 6-9, 1914, as determined by levels run to high-water marks after 

, water had receded (discharge, about 54,000 second-feet); minimum stage 

recorded, 0.45 foot at 11 a. m. November 7, 1915 (discharge, 595 secondfeet); minimum flow caused by regulation.

ICE. Stage-discharge relation seriously affected by ice.
UPPER MISSISSIPPI BWEB BASIF.

REGULATION. No storage reservoirs discharge into Wisconsin River between 

Nekoosa and Merrill. See "Regulation" in station description of Wisconsin River at Merrill (p. 85). Between Nekoosa and Merrill are 12 dams 

operated for power.

ACCURACY. Stage-discharge relation permanent except as affected by ice. 

Rating curve well defined. Operation of water-stage, recorder very satisfactory. Daily discharge ascertained by means of discharge integrator, 

except for period of ice effect for which it was ascertained as indicated in 

footnote to daily-discharge table. Open-water records excellent; winter 

records subject to considerable error-.

Discharge measurements of Wisconsin River near Nekoosa, Wis., during the year

ending Sept. SO, 1921.

Date.

June 18

Made by 

S. B. Soule. ............

Oage 

height.

Feet. 

2.73

Discharge.

Sec.-ft. 

4,160

Date.

July 12

Made by 

* 

A. O. Olson.... _ .....

Gage, 

height.

Feet. 

1.40

Discharge.

Sec.-ft. 

1,840

Daily discharge, in second-feet, of Wisconsin River near Nekoosa, Wis., for the 

year ending Sept. 80, 1921.

Day.

1 . 

2..........

3_ 

4. 

5.. ........

6..........

T. .........

8..........

9..........

10.. ........

11 

12..........

13 . 

14....---.-.

15 ......

16..........

17 

18 ...

19..........

20..........

21..........

22..........

23..........

24..........

25..........

26..........

27..........

28... ..

29.... ..

30..........

31..........

Oct.

2,280

2,360

1,920

2,000

1,630

1,740

1,860

1,860

1,880

1,790

1,880

1,540

2,720

2,020

2,030

2,220

1,950

1,880

1,740

1,870

2,680

2,290

2,640

3,390

2,900

2,920

3,340

2,520

2,720

2,200

1,810

Nov.

2,890

1,870

2,880

2,580

3,020

3,180

2,960

2,730

2,730

2,810

2,420

2,480

1,730

2,030

2,260

1,930

1,750

1,940

2,010

2,100

2,240

2,070

1,880

2,280

2,580

2,730

2,800

1,980

2,640

1,920

Dec.

2,780

3,020

2,960

3,270

3,180

3,410

2,680

2,800

2,700

2,420

2,300

9 7<tfl

2,280

2,120

2,910

2,740

2,340

3,100

2,670

3,540

2,880

2,610

2,790

2,670

2,500

2,260

2,180

2,840

3,190

3,550

3,190

Jan.

2,840

2,580

2, 840

2,580

2,110

1,960

1,820

1,960

1,890

1,750

1,430

1,380

1,750

1,890

2,260

1,960

2,750

2,580

2,040

2,420

2,340

1,960

1,820

2,110

1,890

2,500

2,580

2,580

2,580

2,040

2,110

Feb.

1,550

1,890

2,580

2,040

2,110

2,110

2,260

2,340

2,420

2,500

2,340

1,680

1,890

1,820

2,110

3,100

3,100

2,660

2,580

3,370

2,110

2,660

2,580

2,260

2,340

2,580

2,840

Mar.

2,500

2,580

2,420

2,340

2,180

2,620

2,840

2,250

2,960

2,640

2,960

2,760

2,900

2,950

2,850

3,160

3,200

3,020

3,220

7,160

18, 400

34,800

33, 100

20,400

15,800

13, 200

12,900

16,100

20, 100

18, 300

15,200

Apr.

11,600

10,200

9,440

8,150

8,730

8,180

8,510

9,170

9,350

10,400

10,300

9,250

«,830

8,230

8,160

8,640

8,300

8,340

6,200

6,000

5,200

5,520

5,980

9,760

10,300

9,300

12,300

21,400

33,500

38,200

May.

29,500

21,000

15,700

12,300

10,400

9,020

8,080

7,800

7,520

5,710

5,300

4,860

4,140

4,500

5,200

4,610

4,280

4,54Q

4,830

4,700

4,600

4, 740

3,860

4,080

3,780

2,830

3,240

4,460

,8, 590

8,720

7,080

June.

5,730

6,100

5,680

5,120

4,750

3,680

3,620

5,020

8,720

9,020

10,400

15,300

17,000

11,800

8,080

6,120

5,280

4,380

3,690

2,100

3,530

2,990

3,230

2,850

2,190

2,310

2,320

2,070

2,720

2,650

July.

2,810

2,720

3,140

2,900

1,500

1,380

1,020

2,080

2,100

1,990

1,660

1,840

2,440

2,670

2,180

3,B70

2,560

2,200

2, 720

2,970

2,230

2,180

2,010

2,040

1,540

1,620

2,100

2,620

2,100

2,060

1,920

Aug.

1,930

2,000

2,650

2,370

2,060

2,200

1,800

1,920

1,760

1, 590

2,050

1,720

1,810

1,490

1,610

1,660

1,950

1,670

1, 670

1,840

1,640

1,900

1,690

1,860

1,850

1,740

2, 010

1,840

1,850

1,720

3,040

Sept.

1,900

2,520

3,200

2,720

2,380

1,010

1,980

2,280

2,270

2,780

1,740

2,010

1,550

2,020

2,040

1,870

1,820

2,120

2,-OSO

2,060

2,980

2,300

2,750

2,900

3,190

2,250

3,040

2,490

1,780

2,330

NOTE. Stage-discharge relation affected by ice Dec. 25 to Mar, 4; discharge ascertained by means of 

gage heights from recorder graph, weather records, and comparison with flow of this river at Merrill, Wis., 

taking into account the effect of regulation at storage reservoirs.
90 SUSP ACE WATER SUPPLY, 1921, PART V.

Monthly discharge of Wisconsin River near Nekoosa, Wis., for the year ending

Sept. SO, 1921.

[Drainage area, 6,600 square miles.]

Month.

October.. ____________________

November __ _____ ___ _ __

December. _____ _ _ ___ . __ ...

February. ____________________

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

May.... ___________________

July. -... ..- ..--.._____.__--.__.

August __________ . ...................

The year.... ______________

Discharge in second-feel.

Maximum.

3,390 

3,180 

3,550 

2,840 

3,370 

34,800 

38,200 

29,500 

17,000 

3,570 

3,040 

3,200

38,200

Minimum.

1,540 

1,730 

%120 

1,380 

1,490 

2,180 

6,200 

2,830 

2,070 

1,020 

1,490 

1,010

1,010

Mean.

2,210 

2,380 

2,790 

2,170 

2,330 

8,960 

10,900 

7,420 

5,620 

2,220 

1,900 

2,280

4,270

Per

square 

. mile.

0.402 

.433 

.507 

.395 

.424 

1.63 

1.98 

1.35 

1.02 

-.404 

.345 

.415

.776

Run-off 

in inches.

a 46 

.48 

.58 

.46 

.44 

1.88 

2.21 

1.56 

1.14 

.47 

.40 

.46

10.54

WISCONSIN EIVEB AT MUSCODA, WIS.

LOCATION. In sec. 1, T. 8 N., R. 1 W., at highway bridge 1 mile north of Muscoda, Grant County. Eagle Mill Creek enters from right half a mile below 

station, and Underwood Creek enters from left, 4$ miles above.

DRAINAGE AREA. 10,300 square miles (measured on map issued by Wisconsin 

Geological and Natural History Survey, edition of 1911; scale, 1 inch=6 

miles).

RECORDS AVAILABLE. December 20, 1902, to December 31, 1903; December 1, 

1913, to September 30, 1921. Gage heights November 1, 1908, to December 

31, 1912, published in United States Weather Bureau bulletin, Daily River 

Stages, parts 9, 10, and 11.

GAGE. Chain gage fastened to handrail on upstream side of bridge; read by 

William Hessler. Elevation of zero of present gage about 12.62 feet above 

that of gage maintained December 20, 1902, to December 3, 1913; elevation 

of gage read by United States Weather Bureau during period November, 

1908, to December 3, 1913, was approximately the same as that of present 

gage, sea-level elevation of which is about 666.2 feet.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 7.74 feet at 7 

a. m. May 6 (discharge, 39,000 second-feet); minimum discharge, estimated 

1,600 second-feet December 20 (stage-discharge relation affected by ice).

1903 and 1914-1921: Maximum stage recorded, 10.10 feet April 2, 1920 

(discharge, 64,400 second-feet); minimum discharge same as for 1921.

According to records of United States Weather Bureau 5 (see note under 

"Gage"), on June 11, 1881, the river reached a stage of 11.1 feet and during 

August, 1868, zero on gage; discharge not determined owing to probable 

changes in channel and datum of gage.

REGULATION. Nearest power plant above station is at Prairie du Sac, about 40 

miles distant; since latter part of 1915 considerable diurnal fluctuation has 

been observed at gage. Owing to regulation by storage in the headwaters, 

flow at this station is not natural.

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

Standard rating curve fairly well defined between 3,000 and 45,000 secondfeet. Gage read to hundredths twice daily. Daily discharge ascertained by 

indirect method for shifting control except for period of ice effect for which 

it was ascertained as indicated in footnote to table of daily discharge. Openwater records poor; winter records subject to error.

5 Daily river stages, pt 10, p. 98.
UPPERr MISSISSIPPI BIVBR-BASIN; 91

Discharge measurements -of Rivtr at 

ending Sept. 80, 1921.

s., during the year

Date.

Oct. 11

Mar. 24

' Made fry 

Souls' and , Oollins. . _

Gage 

height.

Feet. 

0.56

3. 71

Discharge.

Sec.-ft. 

3,090

14,000

Date.

May 24

'Sept. 27

 Madtfby '-

SouliSand Cbllms ......

A. Q. <Wson __ __

h§?ht

Feet.

2.74

1. M

Dis- 

, charge.

$ec.-&, 8,820

6,090

Daily discharge, in seeond-fenet, of Wisconsin River at Muscodn, Wis., for the year

ending Sept. 80, 1921.

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.

4,690

4,450

4,220

3,120-

4,220

4,690

4,690

4,450

4,450

4,220

3,340

4,000

4,450

4,690

4,690

4,690

4,450

3,340

4,000

4,220

4,000

4,000

4,000

4,000

3,120

3,780

4,220

4,220

4,220

4,220

4,000

Nov.

3,560

4, 690

4,690

4,450

4,450

4,450

4,450

3,120

4,450

5,200

4,940

5,760

6,060

4,940

3,560

4,450

4,690

4,690

4,690

5,200

4,940

4,690

5,480

5,200

5,200

4,940

5,480

5,480

4,450!

6,380

Dee.

6,700

6, 380

6,060

5,200

6,060

5,260

6,700

6,700

6,380

6,380

6,380

6,060

4,450

6,060

5,2£0

5,800

6,140

4,850

4,440

1,600

4,720

4,750

5,340

4,330

3,820

2,310

2,120

4,500

4,400

4,500

4,530

Jan.

4,820

2,130

4 480

6,850

7,460

7,050

6,330

6,810

6,740

5,170

7,040

6,680

5,980

5,490

4,980

4,980

1,900

5,180

5,240

5,240

5,000

5,130

5,200

4,600

7,100

7,100

6,730

6,250

5,980

6,700

4,720

Feb.

5,990

0,540

5,900

5,240

5,190

5,140

1,880

6,040

5,590

4,930

4,930

4,840

5,040

2,170

6,410

6,040

5,550

6,380

6,380

6,380

7,040

7,400

7,040

9,300

7,040

5,760

5,480

4,000

Mar.

5,480

6,480

5,200

5,200

5,760

5,760

4,940

6,060

6,700

6,060

7,040

7,400

7,760

5,200

8,140

8,900

6,700

7,400

8,520

7,040

6,380

7.400

8,900

13,900

20,300

21, 900V

26,400

36,800

28,500

19, 700

19,700

Apr. ,

19.206

28,860

21,400

21,400

17,700

14,800

12,600

14, 400

14,860

13,500

11,300

14,400

12,200

13,900

14,800

14,800

13,500

13,000

12,200

11,300

13,500

14,800

12,200

9,700

10,100

10,100

12,600

15, 300

17,200

17, 206

May.

17,700

20,300

25,100

33,200

36,800

37,700

28,500

20,300

15,800

15,300

13,900

10,900

9,700

10,900

10,900

8,140

7,760

8,520

11,300

9,300

7,400

8,900

9,300

8,140

10,900

11,300

12,200

13,900

10,500

7,760

9,700

June.

12,200

12,600

12,200

10,900

8,800

10,300

8,140

7,040

7,400

7,040

8,140

8,520

10,100

13,500

14,400

14,800

18,200

15,300

10,100

11,300

8,140

6,700

6,700

6,700

7,040

6,700

6,060

6,380

5,760

5,200

July.

5,480

6,480

4,450

4,000

3,7$0

4,220

4,690

4,690'

4,680

4,450

3,780

4,000

4,220

4,220

 4,000

3,780

3,560

3,340

3,7«0

4,000

4,220

4,220

4,000

3,780

3,780

5,200

4,000

4,000

4,000

4,230

4,220

Aug.

3,780

4,000

4,220

4,450

4,000

3,560

3,340

3,340

3,780

4,000

4,220

4,220

4,000

4.000

3,340

3,56&

3,780

4,000

3,780

4,000

3,780

3,560

3,560

3,780

3,780

3,560

3,560

3,560

2,900

3,560

4,450

Sept, ;

4,220

4,000

3,780

4,000

4,450

4,450

5,760

4,940

4,940

4 Q4fl

4,940

4,220

4,690

4,690

4,450

6,700

8,520

8,520

6,380

6,709

8,140

7,760

7 400

5,760

6,700

5,760

6,060

6 060

5,760

5,480

NOTE. Stage-discharge relation affected by ice Dec. 15 to Feb. 17; discharge ascertained by means of 

gage heights, observer's notes, weather records, and comparison with flow at Prairie du Sac plant of Wisconsin Power, Light & Heat Co., as determined by kilowatt output.

Monthly discharge of Wisconsin River at Muscoda, Wis., for the year ending Sept.

80, 1921.

[Drainage area, 10,300 square miles.] 

Month.

October. .. __________________

Novembej- _____ __ .. ______ ._ _. .

January ____________________

February ____________ _____ ..

March ________ . ______

April ___________________ ...

May... ___________________

June ____________ _ ..r ... .. .

Jaly ......... ..... 

August _____ __ .............

September ________________ .

Discharge in second-feet.

Maximum.

4,690 

6,380 

6,700 

7,460 

9,300 

36,800 

23,800 

37,700 

18,200 

5,480 

4,450 

8,520

37, 700

Minimum.

3,120 

3,120 

1,600 

1,900 

1,890 

4,940 

9,700 

7,400 

5, 200 

3,340 

2,900 

-,780

J, 00

Mean.

4,160 

4,820 

5,100 

5,640 

5,700 

11,000 

14,600 

14,900 

9,560 

4,200 

3,790 

5,670

7,430

Per square 

mile.

0.404 

.468 

.496 

.548 

.553 

1.07 

1.42 

1.45 

.928 

.408 

.368 

.550

.721

Run-off in 

inches.

0.47 

.52 

.57 

.63 

.58 

1.23 

1.58 

1.67 

1.04 

.47 

.42 

.61

9.79

81182 24t wsi> -125
92 SURFACE WATER SUPPLY, 1921, PART V.

TOMAHAWK RIVER HEAR BRADLEY, WIS.

LOCATION. In sec. 16, T. 36 N., R. 6 E., 2 miles west of Cassion, 4 miles north 

of Bradley, Oneida County, 4 miles downstream from mouth of Bearskin 

Creek, which comes in from right, and 8 miles above mouth of river.

DRAINAGE AREA. 422 square miles.

RECORDS AVAILABLE. September 18, 1914, to September 30, 1921.

GAGE. Slope gage fastened to concrete posts on right bank of river, installed 

September 24, 1919; prior to that date, chain gage fastened to cantilever 

arm on right bank; both gages at same datum; read by Frank Sutherland.

DISCHARGE MEASUREMENTS. Made from cable about half a mile below gage.

CHANNEL AND CONTROL. Bed at gage and a short distance below composed 

of sand; subject to shift; bed at cable composed of heavy gravel. Control 

is formed by rapids about 2,000 feet below gage. When a head of 15 feet 

is maintained on Rice Lake storage dam, in sections 4 and 9, T. 35 N., 

R. 6 E., backwater will extend half way up the rapids and may affect stagedischarge relation. The maximum head maintained during the year was 

considerable less than 15 feet.

EXTREMES OF DISCHARGE. Maximum discharge, estimated because of lack ofj 

gage readings, 1,650 second-feet April 8; minimum stage recorded, 1.27 

feet at 6.50 a. m. July 1 and 6.40 a. m. August 9 and 13 (discharge, 132 

second-feet).

1914-1921: Maximum stage recorded, 6.9 feet April 24, 1916 (discharge, 

2,200 second-feet); minimum stage recorded July 1 and August 9 and 13, 

1921.

ICE. Stage-discharge relation seriously affected by ice.

REGULATIONS. The following reservoirs are maintained upstream from the 

station, for the purpose of regulating the flow of Wisconsin River.

Dams and reservoirs on Tomahawk River.

Name.

Squirrel-..

Minocqua.

Location of reservoir.

T. 39 N., R.5E . . ...

Tps. 38-40 N., RS.6-7ELocation of dam.

Sec. 30, T. 39 N., R. 5ESec. 10, T. 39 N., R. 6 E..

Area of

reservoir.

Square

miles

3.00

11.31

14.31

Drainage

area.

Square

miles

17.07

81.60

98.67

Capacity

(millions

of cubic feet) .

Sum152

291

443

Winter.

152

651

803

ACCURACY. Stage-discharge relation probably permanent except as affected 

by ice. Rating curve well defined above 350 second-feet; fairly well defined 

below that point. Gage read to hundredths twice daily except during 

period November 18 to April 23, when gage was read only on days when 

discharge measurements were made. Discharge ascertained by applying 

mean daily gage height to rating table except for periods during which 

stage-discharge relation was affected by ice and other periods during which 

gage was not read for which it was ascertained as indicated in footnote to 

table of daily discharge. High-water records for periods during which 

gage was read, good; low-water records fair; records for periods during 

which gage was not read, subject to considerable error. 
TJPPEE MISSISSIPPI EIVEE BASIN, 93

Discharge measurements of Tdvmkawk River near Bradley, Wis., during the year

ending Sept. 30, 1921.

Date.

1921. 

Oct. 24

Dec. 29«

Feb. 3&

Made by 

8. B. Soule" ... .........

S. R. Collins.-. __ . ...

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

4B.

Feet. 

2.58

2.70

2. 65

Discharge.

Sec.-ft. 

389

295

283

Date.

1921. 

Mar. 36

July 16

Made by 

S. R. Collins...... _ ..

A. O. Olson..... ___

A

Feet. 

2.50

1.99

Discharge.

Sec.-ft. 

246

288

» Complete ice cover; some frazil ice. 6 Complete ice cover.

Daily discharge, in second-feet, of Tomahawk River near Bradley, Wis., for the 

year ending Sept. SO, 1921.

Day.

l. _ ..

2........

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

4....

5..... . .

6........

7.........

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

9..... _

10..... ...

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

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

13..-...--......

14-... .....

15..... .....

16..

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

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

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

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

21.. .... .

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

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

24..... .....

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

26 .. .......

27---.-.- .

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

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

30 .........

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

Oct.

257

247

247

247

237

237

237

237

237

257

257

257

257

257

278

300

300

289

289

312

395

421

421

395

370

346

334

323

323

323

323

Nov.

312

323

QOQ

334

323

312

312

312

300

314

342

356

370

312

289

290

290

295

295

295

295

295

295

295

295

Dec.

295

295

OQC

300

305

310

315

315

310

300

295

290

280

270

265

260

255

250

245

250

255

270

280

285

290

295

300

Jan.

315

320

330

345

355

365

375

385

395

405

410

410

390

360

340

320

315

310

305

305

300

300

300

295

295

295

290

290

290

290

Feb.

290

285

285

280

280

280

280

275

275

275

270

270

270

270

265

265

265

260

260

260

260

255

255

255

250

250

250

Mar.

250

245

245

245

240

250

255

265

270

275

275

275

280

285

300

315

330

355

385

330

375

485

560

590

605

635

650

725

785

860

Apr.

925

985

1,050

1,470

1,520

1,520

1,610

1,650

1,610

1,290

1,230

1,190

1,150

1,110

990

880

880

805

735

710

645

645

620

589

619

746

886

923

961

May.

1,000

961

850

815

746

650

589

530.

502

474

447

447

559

619

589

447

395

370

358

346

334

323

312

312

289

268

300

370

502

559

713

June.

746

713

589

502

447

421

421

474

447

447

421

395

358

334

300

278

247

.237

218

209

192

183

175

167

160

160

152

145

145

145

July.

132

152

209

209

200

192

200

237

257

257

228

218

218

247

268

257

237

228

209

192

175

175

175

175

192

209

289

323

300

278

247

Aug.

237

218

9flfl

183

175

167

145

138

132

145

145

138

132

160

152

152

152

152

160

167

160

160

160

152

145

167

268

300

289

268

247

Sept.

209

200

200

200

W7

218

209

200

1O9

192

183

175

167

167

175

192

218

257

247

247

289 o-\n

502

530

530

502

447

421

358

358

NOTE. Gage not read during period Nov. 18 to Apr. 23; during this period stage-discharge relation 

was affected by ice for the greater part of December, January, February, and March; discharge for the 

entire period ascertained by means of three discharge measurements, weather records, record of water 

released from reservoirs above station, and comparison with flow of Flambeau River near Butternut 

and of Pine River near Florence. Gage not read Nov. 11-14; discharge interpolated.

Monthly discharge of Tomahawk River near Bradley, Wis., for the year ending

Sept. SO, 1921.

[Drainage area, 422 square miles]

Month.

April....-.-.-......... ......... ........

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

September _ ... _ ..... ... .... ...

Discharge in second feet.

Maximum.

421 

370 

315 

410 

290 

860 

1,650 

1,000 

746 

323 

300 

530

1,650

Minimum.

237 

289 

245 

290 

250 

240 

589 

268 

145 

132 

132 

167

132

Mean.

297 

310 

283 

333 

269 

406 

1,020 

515 

328 

222 

180 '278

369

Per square 

mile.

0.704 

.735 

.671 

.789 

.637 

.962 

2.42 

1.22 

.777 

.526 

.427 

.659

.874

Run-off in 

inches.

0.81 

.82 

.77 

.91 

.66 

1. 11 

2.70 

1.41 

.87 

.61 

.49 

.74

11.90
SURFACE WATER SUPPLY/ 1921, FART V.

PRAIRIE BIVEB HEAR MBRRIJJ,. WIS.

LOCATION. On line between sees. 20 and 29, T. 32 N., R. 7 E., at highway 

bridge 4f miles northeast of Merrill, Lincoln County, and 5| miles above 

mouth of river. Haymeadow Creek enters from left 5 miles above station.

DRAINAGE AREA. 164 square miles (measured on map issued by Wisconsin 

Geological and Natural History Survey, edition of 1911; scale, 1. inch=6 

miles.

RECORDS AVAILABLE. January 17, 1914, to September 30, 1921.

GAGE. Chain gage attached to upstream side of bridge; read by Mrs. Meta 

Krause.

DISCHARGE MEASUREMENTS. Made from highway bridge to whieh gage--isattached or by wading.

CHANNEL AND CONTROL. Bed composed of gravel; clean and free from vegetation. Right bank high and not subject to overflow; left bank maybe 

overflowed at extreme high stages; both banks wooded. Control not well 

defined.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 5.50 feet 

April 28 (discharge, 1,780 second-feet); minimum discharge, estimated 70 

second-feet Februa'ry 3, 4, 9-11, and 13-19 (stage-discharge relation affected 

by ice).

1914-1921: Maximum stage recorded, 6.1 feet April 22, 1916 (discharge, 

2,290 second-feet); minimum discharge same as for 1921.

ICE. Stage-discharge relation seriously affected by ice.

REGULATION. None.

ACCURACY. Stage-discharge relation permanent except as affected by ice. 

Rating curve well defined between 103 and 2,200 second-feet. Gage read 

to half-tenths once daily except as indicated in footnote to table of daily 

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

rating table except for periods during which stage-discharge relation was 

affected by ice, for which it was ascertained as indicated in footnote to 

table of daily discharge. Open-water records good; winter records fair.

Discharge measurements of Prairie River near Merrill, Wis., during the year

ending Sept. SO, 1921.

Date.

Feb. 26..

Made by 

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

&,

Feet. 

2.08

1.92

Discharge.

Sec.-ft. 

96

75

Date.

Mar. 2 6.

July 15..

Made by 

S, E. Collins _____ .

Gage 

height.

Fed. 

1.84

1.77

Discharge.

Sec.-ft. 

92

102

»Ice cover about two-thirds complete. 

* Ice along right shore; main channel open.
UPPER MISSISSIPPI RIVER BASIN. 95

Daily di , in second-feet, of Prairie River near Merrill, Wis., for the year 

ending Sept. 30, 1921.

Day.

1... __ ......

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

4

5.. __ --.-.--.

6 ......

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

8.i... ..........

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

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

11. -.- .. _.

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

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

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

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

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

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

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

19...... .-..

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

21 .........

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

23 .........

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

25 ...

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

27 ,....

28. . 

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

30 . ........

31 .........

Oct.

106

103

Ifl^l

103

101

101

101

101

101

129

133

126

122

13^

159

172

159

148

184

184

184

172

148

137

133

129

126

122

118

Nov.

124

131

1 f^Q

159

159

148

148

135

135

131

128

124

124

116

110

110

100

95

95

90

90

90

95

95

100

105

131

131

148

Dec.

172

184

181

184

172

159

137

137

133

19Q

19Q

133

133

130

120

inc

100

on

85

80

105

105

105

80

75

80

on

95

95

95

95

Jan.

.85

95

95

QC

85

on

90

80

80

80

80

80

80

85

fin

ftn

80

80

80

85

90

88

85

85

80

sn

80

75

75

75

Feb.

75

75

70

70

75

75

75

75

70

70

70

75

70

70

70

70

70

70

70

75

75

75

75

75

75

75

RS

85,

Mar.

' 86

on

Oft

Qf\

O/n

85

85

85

80

OE

90

96

101

98

96

100 mo

110

118

870

1,160

535

655

825

825

781

870

. 781

738

655

535

Apr.

825

384

384

366

402

JAO

AKQ

j co

458

440

440

d.91

Qfifl

278

313

oiq

97ft

*>AA

244

212

Oi o

278

402

1A KQ

535

1,420

1,780

1,420

1,060

May.

78.1

574

421

278

ft 4 A

212

184

172

1 R,Q

1 *»Q

159

159

159

IRQ

1 1Q

172

184

159

148

137

137

126

118

118

14&

313

278

228

212

June.

148

11&

115

1 5Q

244

228

244

384

QrfQ

261

172

19Q

101

OS

93

93

98

96

93

91

91

106

118

July.

103

101

101

Oft

OQ

Ql

91

Oft

OT

91

01

QQ

89

98

101

96

QQ

103

101

93

93

91

91

101

Qft

93

Ql

91

96

102

89

Aug.

CO

IMS

Q*J

fif7

07

o«

QK

83S'3

89

228

1^0

148

101

96

<K

91

Ql

96

102

101

101

08

OS

Qfl

96

212

198

159

133

Sept.

no

109

103

98

93

Ql

91

Ql

04

QQ

103

101

OR

96

93

OR

184

198

172

159

IQft

228

212

172

148

129

118

112

103

103

NOTE. Stage-discharge relation affected by iee Nov. 15-27 and Dec. 14 to Mar. 11; during the later period 

the gage was not read Jan. 3, 5, 7, 10, 12, 14, 17, 19, 21, 24, 26, 28, 31, Feb. 2, 4, 7, 9,11,14,16, 18, 21, 23, 25, 

28, Mar. 2,4,6,8, and 10; discharge for both periods ascertained by applying to rating table daily gage height 

corrected for effect of ice by means of three discharge measurements, observer's notes, and weather records, 

and by interpolating or estimating for days of no gage reading. Discharge interpolated Oct. 14, Mar. 12, 

14,16, and 1& on account of lack of gage readings.

Monthly discharge of Prairie River near Merrill, Wis., for the year ending Sept. SO,

1921.

[Drainage area, 164 square-miles.]

Month.

May.. ____________________

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

September.... ________ .. _ . ........

Discharge in second-feet.

Maximum.

184 

159 

184 

95 

85 

1,160 

1,780 

781 

384 

103 

228 

228

1, 780

Minimum.

101 

90 

75 

75 

70 

80 

212 

118 

91 

89 

83 

91

70

Mean.

131 

120 

120 

83.4 

73.6 

355 

529 

234 

154 

95.1 

114 

127

178

Per

square 

mile.

0.799 

.732 

.732 

.509 

.449 

2.16 

3.23 

1.43 

.939 

.580 

.695 

.774

1.09

Bun -off 

in inches.

0.92 

.82 

.84 

.59 

.47 

2.49 

3.60 

1.65 

1.05 

.67 

.80 

.86

14.76
96 SURFACE WATER SUPPLY, 1921, PART V.

EAU CLAIRE RIVER AT KELLY, WIS.

LOCATION. In sec. 13, T. 28 N., R. 8 E., at highway bridge three-quarters of 

a mile northeast of Kelly, Marathon County, 1 mile above mouth of Big 

Sandy Creek, which enters from right, and 4| miles above mouth of river.

DRAINAGE AREA. 326 square miles (measured on map issued by Wisconsin 

Geological and Natural History Survey, edition of 1911; scale, 1 inch= 6 miles).

RECORDS AVAILABLE. January 1, 1914, to September 30, 1921.

GAGE. Chain gage fastened to downstream side of highway bridge; read by 

Merle Rossmiller and August Krueger.

DISCHARGE MEASUREMENTS. Made from downstream side of bridge or by wading.

CHANNEL AND CONTROL. Bed composed of heavy gravel and rock. Gage is in 

rapids which form control. Banks medium high and not subject to overflow.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 7.05 feet at 

10.30 a. m. March 20 (discharge, 5,830 second-feet); minimum discharge, 

estimated 45 second-feet at 1.30 p. m. January 9 (stage-discharge relation 

affected by ice).

1914-1921: Maximum stage recorded same as for 1921; minimum discharge, estimated 30 second-feet December 6, 1917 (stage-discharge relation affected by ice).

ACCURACY. Stage-discharge relation permanent except as affected by ice. 

Rating curve well defined'between 70 and 3,150 second-feet. Gage read to 

quarter-tenths twice daily except as noted in footnote to table of daily discharge. Daily discharge ascertained by applying mean daily gage height 

to the rating table except as indicated in footnote to table of daily discharge. 

Open-water records good; winter records fair.

Discharge measurements of Eau Claire River at Kelly, Wis., during the year ending

'Sept. 30, 1921.

Date.

Feb. 16

Made by 

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

Gage 

height.

Feet.

2.14

l.«3

Discharge.

 See.-/*.

108

67

Date.

Mar. 16

July 13

Made by 

S. R. Collins ...........

8. B. Souie..... ........

 &.

Feet.

1.92

.81

Discharge.

Sec.-/<.

75

93

* Complete ice cover: small amount of frazil ice. 

& Complete ice cover.
UPPER MISSISSIPPI EIVEB BASIN. 97

Daily discharge, in second-feet, of Eau Claire River at Kdly, Wis., for the year

ending Sept. 80, 1921.

Day.

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

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

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

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

5-. . ........

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

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

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

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

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

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

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

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

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

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

16.;............

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

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

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

20

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

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

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

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

25... .......

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

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

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

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

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

81....... __ ...

Oct.

112

108

101

101

101

101

101

101

101

124

161

174

148

146

151

174

,182

166

161

166

190

214

198

182

177

174

164

148

141

136

136

Nov.

, 148

211

263

238

209

192

190

187

194

200

200

195

190

130

130

134

136

141

141

141

166

166

177

187

174

174

161

161

174

187

Dee>

236

263

269

i 255

248

241

187

136

130

130

130

124

- 200

300

340

340

320

. 300

265

240

155

105

105

105

105

105

110

100

90

80

65

Jan.

70

100

125

100

70

70

65

55

45

55

60

60

60

65

70

70

75

80

90

90

95

100

115

125

100

75

75

75

75

75

75

Feb.

70

70

70

70

65

65

65

65

65

75

85

80

80

80

80

80

75

70

65

65

60

60

65

65

70

70

70

70

Mar.

75

70

55

70

85

105 130

130

130

140

155

155 155

155

155

180

210

240

265

5,760

3,850

1,940

1,580

1,220

862

1,160

1,450

1,740

1,300

862

710

Apr.

557

519

481

443

481

519

557

572

587

539

491

443

404

365

378

390

345

300

284

269

342

416

483

550

617

2,260

3,910

3,090

2,280

1,460

May.

1,070

677

560

443

390

340

340

284

269

246

241

248

255

269

246

228

228

241

255

255

228

214

187

187

166

166

182

246

241

' 187

June.

166

166

156

141

131

131

200

300

246

617

990

990

677

390

269

246

228

187

166

156

141

131

117

117

108

108

108

117

141

131

July.

108

108

117

117

112

117

101

112

108

101

90

90

90

108

117

108

108

174

174

136

112

108

94

90

136

112

136

131

124

112

101

Aug.

94

94

90

94

90

90

90

86

 86

101

161

141

108

108

108

101

94

94

90

94

94

94

90

86

80

86

101

148

136

136

117

Sept.

108

101

101

94

101

94

90

90

101

IDS

108

94

., 90

94

94

94

136

187

182

174

214

228

209

187

200

174

148

136

124

117

NOTE. Stage-discharge relation affected by ice Nov. 14, 15, Dec. 9-11, and Dec. 15 to Mar. 19; during 

these periods the gage was not read Dec. 15-25, 28, 30, Jan. 2, 4, 6, 8, 10, 12, 14, 16, 18, 19, 21, 23, 25, 27, 29, 

30, Feb. 1, 3, 5, 6, 8, 10, 12, 13, 15, 17, 19, 20, 22, 24, 25, 27, Mar. 1, 2, 4. 6, 8, 10, 12, 13, 15, 16, and 18; discharge for the periods ascertained by applying to rating table mean daily gage height corrected for effect 

of ice by means of three discharge measurements, observer's notes, and weather records, and by interpolating or estimating for days of no gage reading. Gage not read Oct. 23, Nov. 7, 9, 12, Dec. 5, Mar. 21, ' 

23, 24, 26, 27, 29, 31, Apr. 2, 3, 5, 6, 8, 10, 11, 13, 15, 17, 19, 21, 23, 24, 26, 28, 29, May 1, 3, 12, and Aug. 16; 

discharge interpolated.

Monthly discharge of Eau Claire River at Kelly, Wis., for the year ending Sept.

80, 1921.

[Drainage area, 326 square miles.]

Month.

April...... ........ ^.............. ...........

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

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

August ______________ . _______

Discharge in second-feet.

Maximum.

214 

263 

340 

125 

85 

5,760 

3,910 

1,070 

990 

174 

161 

228

5,760

Minimum.

101 

130 

65 

45 

60 

55 

269 

166 

108 

90 

80 

90

45

Mean.

146 

177 

186 

79.4 

70.4 

809 

811 

300 

259 

115 iQ3

133

266

Par 

square 

mile.

0.448 

.545 

.571 

.214 

.216 

2.48 

2.49 

.920 

.794 

.353 

.316 

.408

.816

Ban-off 

in inches.

0.52 

.61 

.66 

.28 

.22 

2.86 

2.78 

1.06 

.89 

.41 

.36 

.46

11.11
SURFACE WATER SUPPLY, 1921, PART V.

BIS BAH PLEINE RIVER NBAE STRATFORD, WIS.

LOCATION. In sec. 13, T. 27 N., R. 3 E., at Weber farm, 2 miles north of Stratford, Marathon County, and 1 mile above Chicago & Northwestern Railway 

bridge. Dill Creek enters from right 5 miles above station.

DRAINAGE AREA. 223 square miles (measured on map issued by Wisconsin 

Geological and Natural History Survey, edition of 1911; scale, 1 inch=6 

miles).

RECORDS AVAILABLE. July 24, 1914, to September 30, 1921.

GAGE. Slope gage, graduated from 1.0 foot to 15.6 feet, on right bank of river, 

and vertical staff gage, graduated from 15 to 18 feet, at upper end of slope 

gage; read by Christian Weber.

DISCHARGE MEASUREMENTS. Made from highway bridge about half a mile below 

gage or by wading. Measuring conditions poor at low stages.

CHANNEL AND CONTROL. Bed composed of heavy gravel a'nd rock. Control at 

head of rapids 400 feet below gage; practically permanent. Banks at gage 

high and are overflowed only at stages above about 15 feet.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 10.3 feet at 6 

p. m. April 27 (discharge, 7,670 second-feet); minimum stage, 1.26 feet at 

6.30 a. m. and 6.30 p. m. August 25, and 7 a. m. August 26 (discharge, about 

2.6 second-feet).

1914-1921: Maximum stage recorded, 10.9 feet at 4.30 p. m. November 

10, 1919 (discharge, 8,630 second-feet); minimum stage recorded, 1.25 

feet August 28 and 29, 1920 (discharge, about 2.5 second-feet).

The flood of June, 1914, reached a maximum height of 20.7 feet as determined by levels, run to high-water marks.

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

defined between 47 and 4,000 second-feet; poorly defined outside these 

limits. Gage read to quarter-tenths twice daily except during period of 

ice effect, January 1 to March 26, when no readings were obtained. Daily 

discharge ascertained by applying mean daily "gage height to rating table. 

Records for medium and high stages good; for ordinary low stages, fair; 

for extremely low stages, possibly poor,

Discharge measurements of Big Eau Pleine River near Stratford, Wis., during the 

year ending Sept. 3&,

Date.

Oct; 16

' 17

Made by 

S. B. Soule" ______

D. W. Ebberts ____

&

Feet 

1.80

1.78

Discharge.

Sec.-ft. 

27.8

20.7

Date.

July 14

Made by 

A. O. Olson ___ *.._.

Gage 

height.

Feet. 

1.60

Discharge.

Sec.-ft. 

10.1
'WPE$-3HSSISSSPP! BIVEB' BASIN.

Daily discharge, in second-f&efj'' <# fl% Ean'Ple&ne River neap Stratford, Wis.,for the 

year ending Sept. 30, 19&1.

Day.

1 ... . __ .,,.. 

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

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

4... . 

a.... __ ... .

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

1, ....... ...........

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

9 .......

10.. __ .............

11 . 

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

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

14... _ ..........

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

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

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

18 

...... ..............

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

21... _ . . ....

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

23...... _ ..........

24. .... ....

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

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

27 

28 ____ .... _ ....

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

30 

31 

Got,

3

3

3

3

3

3

3

4

4

5

9

8

7

7

12

24

20

20

20

20

31

43

33

25

22

20

17

17

16

14

14

Nov.

16

37

37

31

30

27

27

27

30

31

31

27

22

18

14

14

12

12

12

13

27

58

58

50

43

41

33

33

33

58

Dec.

115

187

115

98

81

55

41

37

30

25

24

22

24

244

231

206

395

287

159

87

58

50

46

43

41

33

41

27

27

27

27

Mar.

1,390

705

339

258

218

Apr.

182

156

148

148

148

148

244

287

287

336

374

287

206

244

4Afl

272

141

117

117

100

100

194

438

244

182

680

4,510

3,860

990

fiSfl

May.

336

268

141

117

96

75

63

57

47

41

37

33

41

83

111

57

62

75

133

159

104

69

130

89i

57

44

990

1,550

605

395

374

June.

258 tfo

111

83

63

47

605

1,390

690

1,630

2,510

1,050

302

182

111

83

63

47

34

31

as

24

24

19

18

17

15

13

12

12

July.

11

11

11

10

8

11

17

31

18

15

13

10

8

12

12

10ia

18

22

17

15

12

12

10

10

. 7

10

w

10

g

7

Aug.

6

6

6

f,

6

5

5

4

4

4

4

4

4

4

a

3

$

3

3

3

8

3

3

3

3

3

4

6

7

8

10

Sept.

7

6

5

5

5

5

4

5

5

5

5

5

5

5

6

6

12

11

12

12

24

23

22

18

1*

13

11

8

7

6

NOTE. No gage readings obtained Jan. 1 to Mar. 26; discharge not determined.

Monthly discharge of Big Eau Pleine River near Stratford, Wi*., for th& year ending

Sept. 30,

[Drainage area, 223 square mfles.J

Month.

March 27-31 

May "*"

July 

The year ________________

Discharge in second-feet.

Maximum.

43 

58 

395

4,510 

1,550 

2,510 

31 

10 

24

4,510

Minimum.

3 

12 

22

100 

33 

12 

7 

3 

4

3

Mean.

140 

30.1 

91.4 

581 

538 

206 

318 

12.5 

448 

ft 87

143

Per 

square 

mile.

0. 0628 

.135 

.410 

2.61 

2,41 

.924 

1.43 

.0561 

.0201 

.0420

.641'

Bujwi« 

La Inches.

0.07 

.15 

.47 

.49 

2.69 

1.07 

1.60 

.06 

.02 

.96

&67

81182 24t wsp 525 8
100 SURFACE WATEE SUPPLY, 1921, PABT V.

BARABOO EIVEB NEAR BARABOO. WIS.

LOCATION. In sec. 33, T. 12 N., R. 7 E., at highway bridge 4 miles downstream 

from Baraboo, Sauk County, 3 miles below creek that rises near Devils Lake 

and comes in from right, and 15 miles above mouth of river.

DRAINAGE AREA. 572 square miles (measured on map issued by Wisconsin Geological and Natural History Survey, edition of 1911; scale, 1 inch=*6 miles).

RECORDS AVAILABLE. December 18, 1913, to September 30, 1921.

GAGE. Chain gage, attached to upstream side of bridge; read by Theodore 

Schneider.

DISCHARGE MEASUREMENTS. 'Made from downstream side of highway bridge to 

which gage is attached.

CHANNEL AND CONTROL. Bed composed of sand and mud. Control not well defined. Water is confined to one channel except at flood stages when right 

bank is overflowed for a distance of 1,000 feet.

EXTREMES OP DISCHARGE. Maximum stage recorded during year, 11.20 feet at 6 

p. m. May 28 (discharge, about 2,110 second-feet); minimum stage, 1.05 

feet at 7 a. m. August 30 (discharge, about 110 second-feet).

1914-1921: Maximum stage recorded, about 17.5 feet March 26, 1917 

(discharge, about 7,900 second-feet); minimum stage, 0.71 foot at 7.30 a. m. 

July 26, 1916 (discharge, 76 second-feet).

ICE. Stage-discharge relation seriously affected by ice.

REGULATION. There are four dams near Baraboo, 4 miles above station, and one 

at Reedsburg, 18 miles above station. Smaller plants are also operated on 

tributaries. Operation of these various plants causes diurnal fluctuation at 

gage of about 0.3 foot at low stages. Mean monthly discharge probably 

represents nearly the natural flow.

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

17 to January 2, January 10-19, January 24 to February 6, February 17-24, 

and March 16-24. Standard rating curve poorly defined. Gage read to 

quarter-tenths twice daily. Daily discharge ascertained by the indirect 

method for shifting control except for periods during which stage-discharge 

relation was affected by ice, for which it was ascertained by applying to rating 

table mean daily gage height corrected for effect of ice by means of three discharge measurements, observer's notes, and weather records. Records poor.

Discharge measurements of Baraboo River near Baraboo, Wis., during the year ending. Sept. SO, 1921.

Date.

24o

Jan. 29*

Mar. 19c

Made by 

8. B. goule.... .........

Q. F. Rittenberg. .....

8. R. Collins .... .

.....do.--.-.. .......

Gage 

height.

Feet. 2 56

2.56

2.66

4.96

Discharge.

Sec.-ft.

206

224

501

Date.

Apr. 30

May 28

July 11

Made by 

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

Gage

Feet.

K QQ

11.16

2.00

Discharge.

Sec.-ft. 

821

2,110

230

» Nearly complete ice cover below gage.

& Shore ice and some ice floating.

c Control apparently normal, but stage-discharge relation probably affected by an ice jam below.
UPPER MISSISSIPPI EIVEE BASIN. 101

Daily discharge, in second-feet, of Baraboo River near Baraboo, Wis,, for the year

ending Sept. SO, 1921.

Day.

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

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

3.-. ..........

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

5 

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

7_. .___.. ......

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

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

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

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

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

13 .

14..... ....

15 . ...... ..

16 

17 _

18 

19 

20 ...... .

21 

22 

23 

24 

25 

26 

27 

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

29 

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

31 

Oct.

186

168

151

162

149

180

180

174

156

154

186

180

168

174

180

212

397

500

411

278

285

285

271

238

224

244

212

205

192

205

ISO

Nov.

224

257

369

455

355

440

455

470

455

383

327

238

257

250

238

192

224

238

341

383

397

QQ7

411

369

327

313

3fiQ

313

Dec.

313

327

327

313

278

278

264

238

238

238

205

244

257

327

341

411

385

370

315

' 255

040

225

220

205

205

200

190

190

190

220

245

Jan.

240

265

327

341

341

341

327

313

254

230

230

220

190

180

155

155

145

190

271

440

703

767

735

425

285

245

225

180

190

Feb.

155

155

145

150

170

218

250

231

192

198

198

205

231

383

799

765

655

425

220

205

190

\Qf\

231

231

231

218

Mar.

01 o

238

244

244

244

Q97

397

545

530

485

355

341

Q1Q

341

440

500

485

470

500

470

485

455

QtE

QCC

355

440

440

JOC

Q£Q

327

Apr.

Q1Q

285

285

299

271

257

285

313

313

313

341

341

01 0

299

299

327

355

411

397

QQ7

671

607 K*m

500

799

1,030

799

May.

671

515

440

397

397

007

278

271

971

OQR

278

231

OK7

257

238

299

oqjj

313

411

470

QQ7

327

313

Cflfl

515

500

1,070

2,050

1 840

1,090

687

June.

575

49 c

HQ7

313

278

OQQ

QQC

327

007

QO7

285

257

QQQ

383

411

OQO

313

355

327

1QO

174

168

1QA

174

205

205

91ft

OQR

July.

97ft

971

one

174

231

205

244

174

ton

151

1Q9

1Q9

186

186

154

124

1QQ

180

1fift

Tftft

151

174

971

1QQ

238

369

qtq

238

231

Aug.

264

1QO

1Qft

186

192

156

168

186

162

224

IDA

180

IDA

16i

212

192

1QQ

192

192

186

154

198

180

186

174

154

134

IAG

168.

174

Sept.

168 ^144

> 1Q&

560

799

fton

910

560

QQC

0052

1 *A

162

218

CQf\

Cftfi

440

470

1 360

1,606

1,290

i 1 **n

930

341

283

18R

244

Monthly discharge of Baraboo River near Baraboo, Wis.,for the year ending Sept. 80,

1921, 

[Drainage area, 572 square miles.]

Month.

AprU. .......................................

May..... _____________ . _____ ,

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

September _ _______ .. -.... _

Discharge in second-feet.

Maximum.

500 

470 

411 

767 

799 

545 

1,080 

2,050 

575 

369 

264 

1,600

2,050

Minimum.

149 

192 

190 

145 

145 

212 

 257 

231 

168 

124 

134 

144

124

Mean.

222 

337 

266 

310 

293 

393 

442 

522 

304 

208 

184 

533

334

Per

square 

mile.

0.388 

.589 

.465 

.542 

.512 

.687 

 573 

.913 

.531 

.364 

.322 

.932

.584

Run-off 

in inches?

0.45 

.66 

.54 

.62 

.53 

.79 

.86 

1.05 

.59 

.42 

.37 

1.04

7.92

KICKAPOO RIVER AT GAYS MILLS, WIS.

LOCATION. In sec. 28, T. 10 N., R. 4 W., at highway bridge 

Norwood Mill, in Gays Mills, Crawford County, 25 mi.es 

river, and 2 miies below mouth of Tainter Creek, which

DRAINAGE AREA. 629 square miles (measured on map issued 

Geological and Natural History Survey, edition of 191 

miles).

RECORDS AVAILABLE. December 25, 1913, to September 30,

GAGE. Chain gage attached to downstream side of bridge 

Atwood.

DISCHARGE MEAStjBEMENTS.-^-Made from downstream sidu of bridge or by 

wading.

immediately below 

above mouth of 

enters from right, 

by Wisconsin 

scale, 1 inch=6

1921. 

; read by George
102 SURFACE WATER SUPPLY, 1921, PART V.

CHANNEL AND CONTROL. Bed composed of rock covered by a deposit of sand; 

Banks at gage section fairly high and not subject to overflow at ordinary 

high stages. Control is at head of small rapids about 300 feet below gage; 

not permanent; the plotting of discharge measurements indicates that at a 

stage of about 2 feet on the gage, the control is changed to some point 

below, causing a reversal in the rating curve.

EXTREMES op DISCHARGE. Maximum stage recorded during year, 9;31 feet at 

7 a. m. September 6 (discharge, about 2,440 second-feet); minimum stage, 

1.06 feet at 5.30 a. m. August 27 (discharge, 123 second-feet).

1914-1921: Maximum stage recorded, 15.05 feet March 24, 1917 (discharge, about, 6,300 second-feet); minimum discharge, about 100 secondfeet during latter part of January, 1915 (stage-discharge relation affected by 

ice).

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

REGULATION. Mills at Gays Mills immediately above the station, at Soldiers 

Grove, about 7 miles upstream, and at several points above Soldiers Grove, 

use comparatively little storage, so that the recorded flow past the station 

represents nearly the natural flow. During low stages slight diurnal fluctuation is observed at the gage.

ACCURACY. Stage-discharge relation not permanent; not affected by ice. Standard rating curve poorly defined. Gage read to quarter-tenths twice daily. 

Daily discharge ascertained by the indirect method for shifting control. 

Records fair.

Discharge measurements of Kickapoo River at Gays Mills, Wis., during the year

ending Sept. SO, 1921.

Date.

May 25

Made by 

G. F. Rtttenberg 

S. R. Collins ...... .

height.

Feet. 

1.89

3.53

Discharge.

Sec.-ft. 

286

652

Date.

Sept. 28

Made by 

A. O. Olson .......

£&.

Fed. 

2.29

Discharge,

Sec.-ft. 

393

o Probably no backwater from Ice.

Daily discharge, in second-feet, of Kickapoo River at Gays Mills, Wis., for the year

ending Sept. SO, 1921.

Day.

1 ... _

2... __ .......

3 

4 

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

6 

7 _ 

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

» 

10 

11 

12 

13 

14 

15 

16 

17 

IS 

19---.--. _

20 

21 

22 

23 

24 

26 

26 .

27 

28

29 

30 

31 ......

Oct.

286

285

272

285

285

258

285

258

258

258

285

272

315

870

1,020

475

405

141?

315

315

315

285

300

285

285

285

Nov.

455

565

515

435

375

405

565

580

535

475

375

235

360

345

272

285

300

300

385

*>7C

610

J/TR

455

420

375

405

Dec.

4fiE360

375

345

345

315

300

285

315

315

315

285

580

625

390

330

OQC

224

258

330

330

300

345

405

435

435

420

435

405

Jan.

420

465

455

405

405

375

345

315

246

285

OOP:

212

246

«RLQ

300

OQC

285

580

1,020

1,200

920

515

VAC

 ME

OQC

079

235

Feb.

285

246

246

236

235

201

212

224

246

235

235

212

235

fftn

1,200

745

Q1 E

300

315

OQR

 Iflft

235

O7O

233

258

181

Mar.

345

315

285

258

285

770

465

345

272

258

285

300

315

405

4QC

680

580

345

375

475

405

330

375

465

405

420

403

285

300

Apr,

288-'

285

285

285

235

246

285

315

272

300

258

246

285

345

875

285

f)KO

258

236

285

375 *nn

*>Qe

360

845 QOft

May.

465

435

405

360

315

285

272

258

246

246

258

258

258

246

235

QCC

475

550

AfiK

330

285

285

640

1,050

1,230

1,020

610

640

June.

51V

455

435

375

375

285.

285

535

610

455

435

375

300

515

515

285

258

9AR

246

235

212

212

 JftS

ion

224

373

235

July.

194

201

258

235

194

-186

181

224

212

201

176

176

186

246

212

186

TQrt

258

208

IftR

176

178

176

495

185

176

158

148

Aug.

154

188

185

176

158

143

139

143

136

143

475,

224

148

104

176

158

167

167

150

149

' 157

149

142

142

149

146

128

142

146

224

920

Sept.

272'

192

179

595

1»«40

2,360

1,360

495

405

435

272

OJft

246

272

345

1,670

1,920

580

44*

1,960

2,160

2,060

8TO

580

550

515

AAK

390

375

376
, UPPER MISSISSIPPI EIVBB BASIN.

Monthly discharge of Kickapoo River at Gays Mills, Wis.t

Sept. 30, 1921.

[Drainage area, 629 square miles.]

jor the year ending

Month.

jOctober .._-.-----._-_---__---.-..-----__-__

January

July......... .._... _---_. ..._______

September....---- --------------- _ _ ...

Discharge in second-fe

Maximum.

1,020 

895 

625 

1,200 

1,200 

770 

920 

1,230 

610 

495 

920 

2,360

2,360

Minimum.

258 

235 

224 

212 

181 

258 

235 

235 

190 

148 

128 

179

128

Mean.

347 

429 

360 

. 398 

323 

390 

345 

455 

345 

205 

194 

813

383

t.

Per

square 

mile.

0. 552 

.682 

.572 

.633 

.514 

.620 

.548 

.723 

.548 

.326 

.308 

1.29

.609

Run-off 

in inches.

0.64 

.76

.66 

.73 

.54 

.71 

.61 

.83 

.61 

.38 

.36 

1.44

8.27

1016;

22

TURKEY RIVER AT GARBER, IOWA.

LOCATION. In sec. 36, T. 92 N., R. 4 W., at single-span 

Garber, Clayton County, 800 feet above mouth of 

enters from right, and 1 mile below mouth of Volga 

from right.

DRAINAGE AREA. 1,530 square miles (measured on map issu 

Geological Survey; scale, 1 to 500,000).

RECORDS AVAILABLE. August 29, 1913, to November 30, 

to September 30, 1921.

GAGE. Chain gage attached to downstream handrail of 

Prolow.

DISCHARGE MEASUREMENTS. Made from bridge or by wading

CHANNEL AND CONTROL. Bed composed of sand and muc 

bank high and not subject to overflow; left bank subject 

gage height about 22 feet. Low-water control is a gravtl

EXTREMES OF DISCHARGE. Maximum stage recorded durin 

9 a. m. May 3t (discharge, about 10,400 second-fee 

3.60 feet at 6 p. m. October 6, 9, and 10 (discharge, 29C

1913-1916; 1919-1921: Maximum stage recorded, 

(discharge, about 20,300 second-feet); minimum stage, 

5 and 7, 1913 (discharge, 100 second-feet).

The highest stage within the last 30 years probably 

1902, when a stage of about 23.7 feet referred to gage 

as indicated by high-water marks on A. F. Grafe's

-Stage-discharge relation seriously affected by ice; 

tinued.

REGULATION. Operation of an electric-light plan

15 miles upstream, may cause slight diurnal fluctuation

ACCURACY. Stage-discharge relation changed during high 

affected by ice December 23 to February 13. 

used October 1-15. Rating curve used October 16 to 

defined between 250 and 11,000 second-feet, 

twice daily except during period of ice effect, when 

continued. Daily discharge ascertained by applying 

height to rating table except for period during which s 

tion was affejsted by ice, for which mean discharge was 

parison with flow of Upper Iowa River near Decorah 

Ames, and except for period for which shifting-control 

Open-water records good, although prior to the latter 

in stage-discharge relation may have occurred which 

account of lack of discharge measurements; winter reco

highway bridge at 

Wayne Creek, which 

iiver, which enters

d by United States 

; May 14,, 1919, 

bridge; read by E. J.

shifting. Right 

to overflow above 

bar.

j year, 14.5 feet at

); minimum stage

second-feet). 

feet June 3, 1916

.70 feet September

ICE.

occurred May 18, 

datum was reached, 

residence in Garber.

observations disoont and gristmill at Elkader, about 

at gages.

water of October; 

Shift ing-controlx method 

September 30, well 

read to hundredths

a:id

part

observations w^re

mean daily gageage-discharge relastscertained by comSquaw Creek at 

method was used. 

of May changes 

indeterminate on 

ds subject to error.
104 SURFACE WATER SUPPLY, 1921, PART V.

Discharge measurements of Turkey River at Garber, Iowa, during the year ending

Sept. SO, 1921.

[Made by E. D. BurchardJ

Date.

May 30- _ . ____ ._ ___

May 31... .-...._..__

June 11. ____________

Gage 

height.

Feet.

7.77

14.48

8.53

Discharge.

Sec.-ft. 

3,060

10,300

3,850

Date.

Sept. 29- 

Gage 

height.

Feet. 

6.52

5.36

Discharge.

Sec.-ft. 

2,010

Daily discharge, in second-feet, of Turkey River at Garber, Iowa, for the year ending

Sept. SO, 19%1.

Day.

1 

2 _ ---.---...-

3 -

^.. ............

5 

6.. 

7 

8 

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

10 

11 -

12 

13 

14 ------

15 

16 

17 -

18 

VQ

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

01

Oct.

370

330

330

330

330

290

310

310

290

290

330

330

330

370

1,710

2,220

1,800

895

510

438

438

370

370

392

415

370

370

350

330

330

415

Nov.

665

610

585

560

560

610

610

720

955

955

835

775

720

610

560

460

460

438

485

510

665

665

665

665

585

510

485

585

775

835

Dec.

775

775

665

665

610

585

560

535

485

460

485

485

485

485

485

510

510

510

510

535

560

610

500

Jan.

650

Feb.

500

955

1,020

955

835

835

835

835

775

665

610

560

535

510

510

510

Mar.

560

485

460

438

460

485

560

535

510

415

460

460

510

2,040

2,040

1,080

835

720

720

835

1,150

1,080

955

.955 895

895

895

895

895

775

665

Apr.

535

460

460

460

485

485

485

460

460

438

438

392

415

460

585

585

665

835

1,220

1,430

1,580

1,650

1,150

955

1,150

1,020

895

1,800

1,650

1,360

May.

1,150

1,020

895

895

835

775

665

610

585

720

2,850

1,720

2,490

1,800

1,360

1,020

1,150

4,560

5,820

4,780

3,300

2,040

1,430

1,800

2,220

4,780

5,620

6,900

6,040

3,960

8,720

June.

4,880

3,030

2,310

1,880

1,720

1,580

1,290

3,490

2,580

2,760

3,960

2,850

2,040

1,960

1,880

1,880^

1,020

1,220

1,220

1,020

3,400

1,430

1,020

895

895

835

1,080

1,020

835

775

July.

720

665

720

775

1,020

835

665

665

665

560

585

510

510

895

610

510

510

3,120

775

665

560

510

460

485

485

510

610

460

438

415

415

Aug.

438

1,150

665

460

485

460

460

415

350

4,780

2,760

1,800

1,290

720

610

2,400

1,500

835

610

560

485

560

560

460

415

460

438

438

392

1,080

Sept.

720

955

895

77 c

895

585

485

485

460

460

460

460

438

1,020 460-

3,870

3,960

2,040

438

4,670

4,360

2,670

1,650

1,500

4,160

2,040

1,580

1,220

1,150

1,080

NOTE. Braced figures show estimated mean discharge for periods indicated.

Monthly discharge of Turkey River at Garber, Iowa, for the year ending Sept.

SO, 1921.

[Drainage area/1,530 square miles.]

Month.

April - --- - 

July 

Discharge in second-feet.

Maximum.

2,220 

955

775

1,020

2,040 

1,800 

8,720 

4,880 

3,120 

4,780 

4,670

8,720

Minimum.

290 

438

415 

392

585 

. 775 

415 

, 350 

438

290

Mean.

525 

637 

541 

650 

623 

796 

832 

2,660 

1,890 

688 

921 

1,530

1,030

Per 

square 

mile.

0.343

.416 

.354 

.425 

.407 

.520 

.544 

1.74 

1.24 

.450 

.602 

1.00

.673

Run-off 

in inches.

0.40 

.46 

.41

.49 

.42 

- .60 

.61 

2.01 

1.38 

.52 

.69 

1.12

9.11
UPPER ^MISSISSIPPI KWEB BASIN. 105

MAQTTOXETA KIVEB BELOW NORTH FORK OF HAQUOXETA KIVER, 

MAQUOKETA, IOWA.

LOCATION. In southwest corner NE. J sec. 17, T. 84 N., R. 3 E., at Bridgeport 

Bridge, 1,200 feet above mouth of Mill Creek, 2 miles below mouth of 

North Fork of Maquoketa River, and 3 miles northeast of Maquoketa, 

Jackson County.

DKAINAGE AREA. 1,600 square miles (measured on map issued by United States 

Geological Survey; scale, 1 to 500,000). Drainage area at mouth, 1,960 

square miles.

RECORDS AVAILABLE. September 1, 1913, to September 30, 1921.

GAGE. Chain gage attached to downstream handrail of bridge, 100 feet from 

right abutment; read by John Strodthoff.

DISCHARGE MEASUREMENTS. Made from bridge to which gage is attached.

CHANNEL AND CONTROL. Bed composed of mud and sand; shifts during high 

water. Two channels at stages below 12 feet; about 12 feet overflow occurs 

under pile trestle approach at left end of bridge. Control not well defined.

EXTREMES OF DISCHARGE. Maximum discharge during year, estimated 7,500 

second-feet September 20 (gage not read during period September 19-25); 

minimum stage recorded, 2.00 feet August 1, 9-12, and 14 (discharge, 315 

second-feet).

1913-1921: Maximum stage recorded, 22.0 feet March 27, 1916 (discharge, 21,300 second-feet); minimum stage, 1.59 feet December 25, 1918 

(discharge, about 245 second-feet).

A stage of about 23.5 feet (discharge, about 24,300 second-feet) occurred 

prior to 1913, probably in 1905.

ICE. Stage-discharge relation seriously affected by ice.

ACCURACY. Stage-discharge relation practically permanent except as affected 

"by ice. Rating curve well denned below 3,000 second-feet; extended above 

that point on basis of form of previous curves. 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 except 

for period of ice effect and days when gage was not read for which it was 

ascertained as indicated in footnote to table of daily discharge. Records 

good.

Discharge measurements of Maquoketa River below North Fork of Maquoketa River, 

near Maquoketa, Iowa, during the year ending Sept. 30,

Date.

Oct. 21

Apr. 20

Made by 

.....do 

height.

Feet.

O AQ

6.28

Discharge.

Sec.-ft. RAG

2,640

Dat.e.

Sept. 30

Made by 

Burchard and ClydeGage 

height.

Feet. 

4.19

4.26

Discharge.

Sec.-ft. 

1,350

1,400
106 SUBFAGE WATER BU3PFLY PAET V.

Daily discharge, in aec0nd-feet) &f Moquekesta River belew N&rtk Fork of Moquoketo River, near Maquoketa, Iowa, for the year ending Sept: SO, 1921.

Day.

1.. ____-- _ ...

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

3. _ ...... _ .

4.,.... . ....

5 

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

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

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

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

10. _ ..........

11.. __ .......

12.......- ...

13

14 ... _ .. ...

16 

16 

17 

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

19... ..

20. ......

21 . 

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

23 

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

25...... ....

26....... ...

27 ... .

28 ...

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

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

31 .......

Oct.

880

470

476

470

430

450

430

450

450

450

460

470 450' 

470

470

640

550

550

610

510

510

610

550

550

610

610

470

610

470

470

470

Nov.

550

730

640

596

660

600

6150

686

780

730

640

610

390 

410

610

510

A.V\

650

685

685

640

596

550

550

650

610

610

610

510

550

Dec.

610

610

510

695

595

550

510

500

518

470

470

470

610 

556

650

470

430

390

332

$10

450

Jan.

550

640

696

550

470

650

650

550

610

Feb.

610

470

470

610

470

370

430

470

470

470

510

610

510 

596

730

780

640

390

450

410

430

595

410

430

550

650

470

470

Mar.

450

470

450

430

430

470

450

610

460

450

430

470

500

3,000

1,540

1,300

1, 190

980

880

450

500

600

685

700

730

596

600

650

610

510

550

Apr.

610

610

470

470

470

450

470

510

560

510

470

450

450 

470

470

696

510

696

1,140

9 OfiA

3,590

3,200

2,740

2,030

1,540

1,660

2,420

2,740

2,620

2,030

May.

1,540

1,360

1,240

1,140

1,060

930

930

850

780

730

830

1,030

1,080 

1,080

930

730

730

685

730

700

685

640

595

595

730

880

980

1,420

1,900

1,190

1,030

June.

1,100

1,180

1,140

880

730

640

695

596

640

1,190

1,300

1,080

1,140 

980

830

685

730

640

696

550

650

596

640

696

610

780

930

2,940

1,240

1,030

July.

780

650

595

640

000

510

610

596

500

450

450

440

410

550

390

380

350

332

450

640

470

470

410

400

390

350

350

350

350

332

332

Aug.

315

410

430

420

410

390

350

332

315

316

315

316

332

316

350

332

380

430

640

1,140

510

430

510

460

410

370

350

350

350

332

696

Sept.

510

410

370

390

1,080

830

696

470

410

410

730

880

980 

3,140

2,290

6,980

7,240

4,640

4,400

7,500

6,500

4,800

4,000

4,000

6,500

3,780

2,480

1,960

1,600

1,420

NOTE. Stage-discharge relation affected by ice Dec. 21 to Jan. 23; mean discharge ascertained by means 

of observer's notes, weather records, and comparison with flow of adjacent rivers; gage not read Dec. 25 to 

Jan. 23. Gage not read Nov. 6, 7, Dec. 8, Mar. 13, 21, 22, 24, 27, May 8, 20, June 1, July 2, 4, 9,12,16, 24, 

Aug. 4, 24, and Sept. 19-25; discharge ascertained by means of observer's notes, weather records, and comparison with flow of adjacent rivers. Braced figures show mean discharge for periods indicated.

Monthly discharge of Maquoketa River below North Fork of Maquoketa River, near 

Maquoketa, Iowa, for the year ending Sept. 30, 1921.

[Drainage area, 1,600 square miles.]

Month.

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

Discharge in second-feet.

Maximum.

880 

780 

695

780 

3,000 

3,590 

1,900 

2,940 

780 

1,140 

7,500

7,500

Minimum.

430 

390 

332

370 

430 

450 

595 

510 

332 

315 

370

316

Mean.

502 

678 

480 

550 

502 

704 

1,230 

960 

901 

465 

417 

2,710

831

Per

square 

mile.

0.314 

.361 

.300 

.344 

.314 

.440 

.769 

.600 

.563 

.291 

.261 

L69

.519

Run-off 

in inckes-.

0.36 

.49 

.35 

.40 

.33 

.51 

.86 

.69 

.63 

.34 

.30 

1.89

7.06
.MISSISSIPPI RTOBE BASIN.? 107

BOCK BIVBB AT AFTON, WIS.

LOCATION. On line between sees. 22 and 27, T. 2 N., R. 12 E., at highway 

bridge in Afton, Rock County, 9 miles above Illinois State line. Bass 

Creek enters from right three-fourths of a mile below station.

DRAINAGE AREA. 3,190 square miles (measured on map issued by Wisconsin 

Geological and Natural History Survey, edition of 1911; scale, 1 inch 6 

miles.

RECORDS AVAILABLE. February 5, 1914, to September 30, 1921.

GAGE. Chain gage fastened to the downstream side of bridge; read by George 

Robb.

DISCHARGE MEASUREMENTS. Made from downstream side of bridge or by wading.

CHANNEL AND CONTROL. Bed composed of gravel and clean silt; practically 

permanent. Banks medium high and are not overflowed to any extent at 

flood stages. Control not well defined.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 8.28 feet at 

5.30 p. m. May 2 (discharge, 8,200 second-feet); minimum stage, 0.60 foot 

at 6.10 p. m. July 24 and 5.10 p. m. July 81 (discharge, about 487 secondfeet).

1914-1921: Maximum stage recorded, 10.51 feet at noon March 26, 

1918 (discharge, 12,700 second-feet); minimum stage recorded, 0.38 foot 

at 4.50 p. m., August 31, 1919 (discharge, about 428 second-feet).

ICE. Stage-discharge relation seriously affected by ice.

REGULATION. Operation of power plants at Janesville and above causes slight 

fluctuation at the gage during low stages.

ACCURACY. Stage-discharge relation permanent except as affected by ice 

December 17 to January 1 and January 10-22. Rating curve well defined 

between 638 and 12,700 second-feet. Gage read to hundredths twice daily. 

Daily discharge ascertained by applying mean daily gage height to rating 

table except for periods during which stage-discharge relation was affected 

by ice, for which it was ascertained by applying to rating table mean daily 

gage height corrected for ice effect by means of observer's notes and weather 

records. Open-water records excellent; winter records fair.

Discharge measurements of Rock River at Afton, Wis., during the year ending

Sept. SO, 1921.

Date.

Feb. !< 

Made by 

G. F. Rittenberg-,-_ 

Gage 

height.

Feet. 

1.96

Discharge.

Sec.-ft. 

1,090

Date.

Sept. 23

Made by 

A. 0. 01son__J_._ \..

Gage 

height.

feet.

4.55

Discharge.

Sec.'ft, 

3,100

1 No ice present.
108 SURFACE WATEB SUPPLY, 1921, PAET V.

Daily discharge, in second-feet) of Rock River at Afton, Wis., for the year

Sept. SO, 1921.

Day

1 

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

3 ~ 

4

5 ... -. 

ft... 

T.. ............

8

.

9

-

10 , 

11, 

12.. 

13 

14 

IS 

16 

rj. ........... ..

18 

19 

9ft

21...- ___ . _ .

22 

23 

24 

25 ....

26 

27 

28 

29 

30 

31 

Oct.

912

820

820

820

728

820

820

774

728

728

820

820

820

774

820

820

820

866

820

866

820

820

774

728

820

866

866

912

866

728

728

Nov.

820

960

820

866

820

866

960

1,010

960

960

«12

1,010

912

820

960

912

820

820

912

912

820

912

866

820

774

912

912

820

960

V«0

Dec.

912

866

912

960

060

1,010

1,110

1,060

1, 010

912

960

820

1,060

1,060

774

774

775

775

775

775

775

820

820

960

960

960

960

960

1,010

1,010

1,060

Jan.

1,110

1,110

1,203

1,110

1,110

1,110

1,110

1,110

1,170

1,060

1,060

1, 010

1,010

1,010

960

960

960

960

960

960

960

960

960

1,110

1,230

1,170

1,230

1,170

1,110

1,170

1,230

Feb.

1,170

1,060

1,110

1,110

1,060

1,110

1,110

1,110

1,060

1,010

1,010

960

820

1,060

1,110

1, 010

820

960

960

1,110

1,170

1,110

1,110

1,110

1,110

1,110

1,010

1,060

Mar.

1,060

1,010

1,060

1,060

960

960

1,010

1,110

, 1, 170

1,110

1,060

1,110

1,230

1,820

2,220

2,140

2,310

2,400

2,310

2,140

2,400

2,670

2,580

2.580

2,400

2,670

2,140

2,670

2,490

2,310

2,400

Apr.

2,310

2,140

2,140

2,060

2,060

2,140

1,820

1,430

1,230

1,230

1,430

1,430

1,600

1,580

1,680

2,220

2,060

2,220

2,140

2,310

2,580

2,940

3,040

3,240

3,800

5,160

5,940

6,070

7,060

7,630

May.

8,030

8,200

8,030

7,530

7,370

6,910

6,630

6,210

5,940

5,560

5,290

4,900

4,400

3,800

3,680

3,680

3,340

3,460

3,240

2,940

2,850

2,490

2,580

2,580

2,490

2,580

2,400

2,400

2,310

2,220

2,310

June.

2,310

2,060

1,980

1,980

1,660

1, 500

1,170

866

912

1, 010

1,110

1,010

1,060

1,230

1,170

1,170

1,060

1,010

912

1,010

960

912

866

912

728

774

1,820

1,580

1,230

1,290

July.

1,230

1,010

912

912

1,010

1,010

1,010

960

960

912

960

912

728

912

960

912

683

728

820

774

728

728

638

555

683

638

595

595

638

728

595

Aug.

774

774

820

774

774

728

595

638

683

866

1,360

1,060

820

820

820

866

980

1,010

912

912

912

774

960

912

960

912

866

866

912

866

960

Sept.

1,010

1,010

1,060

1,010

1,110

1,23d

1,170

1,010

1, 110

1,010

1,230

1,500

1,980

2,140

1,980

2,220

2,220

2,140

2,490

2,670

2,850

2,940

3,240

3,560

3,920

4,040

3,680

3,560

3,340

3,340

Monthly discharge of Rock River at Afton, Wis., for the year ending Sept. 30,1921. 

[ Drainage area, 3,190 square miles. ]

Month.

April ......

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

Discharge in second-feet.

Maximum.

912 

1,010 

1,110 

1,230 

1,170 

2,670 

7,530 

8,200 

2,310 

1,230 

1,360 

4,040

8,200

Minimum.

728 

774 

774 

960 

820 

960 

1,230 

2,220 

728 

555 

595 

1,010

555

Mean.

0.811 

.893 

921 

1,080 

1,050 

1,820 

2,810 

4,400 

1,240 

820 

867 

2,190

1,580

Per 

square 

mile.

0.254 

'.280 

.289 

.339 

.329 

.571 

.881 

1.38 

.389 

,257 

-.272 

.687

.495

Run-off 

in inches.

0.29 

.31 

.33 

.39 

.34 

.66 

.98 

1.59 

.43 

.30 

,31 

.77

6.70
TJPPEB MISSISSIPPI KIVER BASIN.

ROCK RIVER AT LYNDON, HI. ,

LOCATION. In sec. 21 T. 20 N., R. 5 E., at highway bridge known as Lyndon 

Bridge, in eastern part of Lyndon, Whiteside County, 10 miles above Rock 

Creek, and 20 miles below dam at Sterling.

DRAINAGE AKEA. 9,010 square miles.

RECORDS AVAILABLE. November 24, 1914, to September 30, 1921.

GAGE. Chain gage attached to bridge; read by George Cady.

DISCHARGE MEASUREMENTS. Made from downstream side of bridge.

CHANNEL AND CONTROL. Bed composed of gravel; practically permanent.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 13.6 feet at 

7 p. m. April 28 (discharge, 25,600 second-feet); minimum stage recorded, 

4.23 feet at 6 a. m. July 26 (discharge, 867 second-feet).

1915-1920: Maximum stage recorded, 19.6 feet February 16, 1918 (discharge not determined because of backwater from ice); maximum openwater stage recorded, 17.0 feet March 28, 1916 (discharge, 30,500 secondr 

feet); minimum stage, 3.72 feet September 27, 1918 (discharge, 536 secondfeet).

DIVERSIONS. Water is diverted at Sterling dam to feed Illinois and Mississippi 

Canal; probably averages about 100 second-feet.

REGULATION. Flow past gage is regulated by power plants in city of Sterling 

and above. Owing to this regulation the mean of two dail^ gage readings, 

during low stages, is probably somewhat less than true mean daily gage 

height.

ACCURACY. Stage-discharge relation practically permanent except as affected 

by ice. Rating curve well defined between 700 and 25,000 second-feet; 

fairly well defined beyond these limits. Gage read to hundredths twice 

daily except as indicated in footnote to table of daily discharge. Daily 

discharge ascertained by applying mean daily gage height to rating table 

except for period of ice effect and periods during which gage was not read 

for which it was ascertained as indicated in footnote to table of daily discharge. Open-water records for medium stages, good; for ordinary low 

and for high stages, fair; for extremely low stages, poor; winter records, poor.

Discharge measurements of Rock River at Lyndon, III., during the year ending Sept.

80, 1921.

[Made by H. E. Grosbach.]

Date.

Mar. 4 ..... _ _ . __ ___ ... ....

.Apr. 27................................ _ . __ ............ ..._..._. ...-._ 

Gage 

height.

Feet. 

5.26

12.78

Discharge.

Sec.-ft. 

2,210

22,500
110 SURFACE WATEE SUPPLY, 1921, PART V.

Daily discharge, in second-feet, <nf Rock River at Lyndon, III., for the year ending

Sept. 80, 1921.

Day.

1 ___ 

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

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

4 

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

6 ...... _ -

7... ........ A.

8 .-.-... ...

9 

10 

11.. ........

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

13 ...

14 

15 

16 

17 

18 

19., 

20 

21.. ,

22.-. 

23.!. .

24 

25.. 

26 

27 

28 

29 

30 

31.. _ 

Oct.

2,230

2,230

2,230

2,230

2,230

2,230

2,070

2,230

2,230

2,230

2,230

2,400

2,400

2,230

2,070

2,400

2,570

2,570

2,070

2,230

2,400

2,230

Nov.

2,400

2,400

2,400

2,400

2,570

2,230

2,400

2,400

2,400

2,570

2,570

2,570

9 74ft

2,740

2,570

2,670

2,570

2,400

2,400

2,230

2,400

2,230

2,230

2,230

2,230

2,230

2,230

2,070

2,120

2,170

Dec.

2,220

2,270

2,320

2,360

2,400

2,740

2,740

2,740

2,910

2,910

2,740

2,910

2,, 570

2,570

2,740

2,740

2, 740

2, 740

3,420

2,570

3,420

3,420

3,420

2,740

»3,600

Jan.

5,200

,

6,500

4,400

5,050

5,500

5,500

5,270

4,840

4,400

Feb.

4,190

3,980

3,980

8f#80

3,600

3,170

3,740

2,740

2,740

2,910

3,250

2

OQft

2,070

3,250

3,080

2,740

3,250

2,746

2,740

2,740

2,740

2,570

2,570

2,400

2,740

Mar.

2,740

2,740

2,740

 * Mfi

2,570

3,080

3,600

3,780

6,250

5,750

5,050

5,750

6,000

6,000

6,250

6,500

7 9^

7,500

7,000

7,000

7.000

0,500

4,400

2,230

9 <tnn

3,980

6,250

5,270

5,050

5,t)50

Apr.

4,830

4,610

4,400

4,190

4,400

4,400

4,400

3,980

4,400

3,780

3,250

2,570

3,250

3,080

3,250

3,600

3,420

4,190

4,610

6,000

9,250

9,250

10,000

11,500

12,100

13,500

21,200

25,600

23,000

19,400

May.

14,700

14,700

13,200

13,'500

13,200

12,600

11,500

10,580

10,000

9,880

9,750

9,250

8,500

8,000

6,500

7,000

6,750

6,500

5,270

5,270

5,270

5,270

5, 160

5,050

4,&30

4,400

4,610

5,050

6,000

6,000

6,000

June.

8,250

6,300

5,500

5,270

3,600

3,420

3,420

2,740

3,080

3,420

3,080

2,400

2,570

2,540

2,510

2,480

2,460

2,430

2,400

2,740

2,570

2,740

3,080

3,250

2,740

2,070

2,280

2,490

2,700

2,910

July.

2, 570

3,250

3,250

3,420

3,420

2,570

2,230

2,230

2,570

2,570

2, 570

2,070

2,400

2,570

2,740

2,230

2,070

2,400

1,910

1,910

1,560

1,620

1,620

1,560

1,560

1,180

1,240

1,620

1,420

1,240

1,490

Aug.

1,430

1, 370

1,300

1,240

1,560

1,980

3.400

W070

2,470

1,690

4,000

5,270

4,830

4,400

4,610

4,190

3,780

3,600

3,200

2,800

2,400

2,400

Sept.

2,400

2,230

2,570

2,W«

3,600

3,788

3,000

3,980

4,610

4,83ft

5,050

5,160

5,270

4,830

5,050

4,830

5, 750

6,250

6,000

9,750

10,800

9,250

9,500

10,200

'NOTE. Stage-discharge relation affected by ice Dec. 25 to Jan. 23; discharge ascertained by means of 

gage heights, observer's notes, and weather records; during this period the gage was not read Dec. 26-29, 

Jan. 2-5,12-19, and 23. Gage not read Oct. 1-9 and Sept. 26-30; discharge not determined. Gage not read, 

discharge interpolated Nov. 29 to Dec. 4, Dec. 17, 22, Jan. 30, Feb. 6, May 10, 20, 23, June 14-18, 27-29, 

Aug. 1-3, 6, 28, 29, and Sept. 12. Gage not read Aug. 11-20; discharge ascertained by comparison with 

flow of Pecatonica Oliver at Freeport, 111. Braced figures show mean discharge for periods indicated.

Monthly discharge of Rock River at Lyndon, III., for the year ending Sept. 30, 1921. 

[Drainage area, 9,010 square miles.]

Month.

October 10-31 .... __ .. _ ..... _ ..........

December ______________ . ........

January.. ...... _____ ... .........

July ..

August. _ . _ . _ . ____________ . ...

Discharge in second-feet.

Maximum.

2,670 

2j74a

4,190 

7,500 

25,600 

14,700 

6,500 

3,420

10,800

25,600

Minimum.

- 2, 070 

2, 070 

2,220

2,070 

2,230 

2,570 

4,400 

2,070 

1,180 

1,240 

2,070

1,180

Mean.

2,270 

2,390 

2,950 

5,200 

3,000 

4,980 

7,850 

8,200 

3,190 

2,160 

3,180 

5,470

4,270

Per

square 

mile.

0. 252 

.265 

.327 

.577 

.333 

.553 

.871 

.910 

.354 

.240 

.353 

.607

.474

Run-off 

in inches.

0.21 

.30

.38 

.67 

.35 

.64 

.97 

L05 

,40 

.28 

.41 

.56

6.22
UPPER MISSISSIPPI EIVEB BASIN. Ill

PECATOKICA RIVI» AT FEEBPORT, 111.

LOCATION. In sec. 32, T. 27 N., R. 8 E., at highway bridge on Hancock Avenue, 

half a mile east of Illinois Central Railroad station at Freeport, Stephenson 

County, and 2 miles above mouth of Yellow Creek.

DRAINAGE AREA. 1,330 square miles.

RECORDS AVAILABLE. September 11, 1914, to September 30, 1921.

GAGE. Chain gage attached to upstream side of bridge; read by W. C. Krueger.

DISCHARGE MEASUREMENTS. Made from upstream side of bridge.

CHANNEL AND CONTROL. Bed composed of sand and silt; somewhat shifting. 

Left bank of medium height and is overflowed at stages above about 16.0 

feet and part of the flow passes through East Freeport.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 11.9 feet at 

5 p. m. August 20 (discharge, 2,640 second-feet); minimum stage, 3.34 feet at 

5 p. m. July 16 (discharge, 286 second-feet).

1914-1921: Maximum stage recorded, 19.4 feet March 28,1916 (discharge, 

17,000 second-f.eet); minimum discharge, 200 second-feet at 5 p. m. December 

14, 1917.

ICE. Stage-discharge relation affected by ice.

REGULATION. Operation of dam and power plant three-fourths of a mile upstream 

regulates flow past gage to some extent; only slight diurnal fluctuation is 

noticeable.

ACCURACY. Stage-discharge relation changed slightly following the high water 

of August; affected by ice December 19 to January 2 and January 12-20. 

Rating curve well defined between 350 and 3,000 second-feet and fairly well 

defined beyond these limits; was used direct October 1 to August 31 except 

for periods of ice effect; indirect methods for shifting control used September 

1-30. Gage read to hundredths twice daily. Daily discharge ascertained 

by applying mean daily gage height to rating table except for periods for 

which shifting-control method was used, and except for periods during which 

stage-discharge relation was affected by ice for which it was ascertained by 

means of gage heights, observer's notes, and weather records. Open-water 

records good; winter records poor.

Discharge measurements of Pecatonica River at Freeport, III., during the year ending

Sept. 80, 1921.

[Made by H. E. Grosbach.]

Date.

Mar. 3-. -...- ..- . .. - .... -. __~ _ . ......

Apfc 27... - .. . .. . ....-....-.:.....-...-.-............-. .......-.... .....

height.

Feet. 

443

9.45

Discharge.

Stc.-ft. 

47«

1,760
112 SURFACE WATER SUPPLY,.,1921, PAET V.

Daily discharge, in second-feet, of Pecatonica River at Freeport, III., for the year

ending Sept. 80, 1921.

Day.

1. . ...

2

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

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

5.

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...... ........

31 

Oct.

467

467

467

449

467

467

449

449

467

449

449

449

431

467

485

525

545

525

505

505

485

467

467

545

668

605

525

505

505

485

712

Nov.

585

690

756

712

605

525

605

585

690

668

605

467

467

377

485

485

467

525

545

545

545

525

545

545

525

525

525

Dec.

525

525

565

605

625

585

545

505

505

505

565

565

525

545

All

505

500

Jan

585

850

925

850

778

756

712

668

(Ufi

605

485

490

565

734

875

800

734

646

525

505

KAK

545

COR

Feb.

545

525

505

505

505

545

565

545

485

485

485

485

505

712

1,050

778

565

449

449

505

545

449

485.

525

467

395

Mar.

485

485

467

449

A1O

413

449

505

505

485

467

467

505

825

1,790

2,050

1,670

1 080

778

668

668

668

605

585

585

625

605

585

545

505

Kf\K

Apr.

485

485

467

467

4fi7

431

431

467

485

545

525

505

485

467

467

525

485

467

734

1,490

1,820

1,790

1,700

1,520

1,150

1,280

1,790

1,880

1,760

1,490

May

1,220

1,100

1,000

950

900

850

800

756

712

756

712

690

734

690

668

625

625

625

850

950

756

646

605

585

605

1,120

1,610

1,670

1,340

1,080

CMY>

June.

778

734

850

712

646

625

605

585

625

712

756

712

646

605

545

505

585

690

585

525

565

545

485

, 413

545

545

734

668

625

July.

525

467

467

467

485

545

467

467

505

690

585

505

413

431

418

343

431

413

449

485

431

431

395

360

413

395

377

449

449

431

395

Aug.

377

413

467

485

485

413

377

360

360

360

1,610

2,020

1,580

950

625

525

850

1,580

1,340

2,600

2,440

1,940

1,100

778

756

'646

585

545

505

485

950

Sept.

1,280

1,050

690

413

1,460

2,240

2,400

2,200

2,080

1,000

875

1,310

1,120

1,340

1,400

1,730

1,790

1,520

1,310

1,640

1,940

2,160

2,160

1,610

1,460

1,580

1,640

1,640

1,490

1,640

Monthly discharge of Pecatonica River at Freeport, Itt., for the year ending Sept.

30, 1921.

[Drainage area, 1,330 square miles.]

Month.

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

December ..

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

February __ . __ ... .......................

March...... . ...

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

June.-... _ ...

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

August. _____ ____ ... . ....

September..... _____________ ....

The year.. __ . _________ : .....

. ......... a .......

Discharge in second-feet.

Maximum.

668 

756 

625 

925 

1,050 

2,050 

1,880 

1,670 

850 

690 

2,600 

2,400

2,600

Minimum.

431 

377 

431

395 

413 

431 

585 

413 

343 

360 

413

343

Mean.

498 

556 

523 

622 

538 

692 

902 

875 

632 

454 

920 

1,540

729

Per 

square 

mile.

0.374 

.418 

.393 

.468 

.405 

.520 

.678 

.658 

.475 

.341 

.692 

1.16

.548

Run-off 

in inches.

0.43 

.47 

.45 

.54 

.42 

.60 

.76 

.76 

.53 

.39 

.80 

1.29

7.44
UPPER ^MISSISSIPPI SWEB BiSKf. 113

SUGAR BIVER NEAR BEODHSAD, WIS. .

LOCATION. In sec. 26, T. 2 N., R. 9 E., at highway bridge 2 miles southwest 

of Brodhead, Green County, and 12 miles above Illinois State line. Jordan 

Creek enters from right 2 miles below station, and Little Jordan Creek, 

also from right, 4 miles above.

DRAINAGE AREA. 529 square miles (measured on map issued by Wisconsin 

Geological and Natural History Survey, edition of 1911; scale, 1 inch=6 

miles).

RECORDS AVAILABLE. February 7, 1914, to September 30, 1921.

GAGE. Chain gage attached to upstream side of bridge; read by Arthur 

Christensen.

DISCHARGE MEASUREMENTS. Made from upstream side of bridge or by wading.

CHANNEL AND CONTROL. Bed composed of sand and gravel. Control not well 

defined. Right bank of medium height; seldom overflowed; left bank at 

gage is overflowed at stage of approximately 6.8 feet on gage.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 3.75 feet at 

5 p. m. September 24 (discharge, about 1,090 second-feet); minimum stage, 

0.99 foot at 7 p, m. July 23 (discharge, 78 second-feet).

1914-1921: Maximum stage recorded, 11.4 feet September 13, 1915 (discharge, about 13,000 second-feet); minimum stage recorded, 0.7 foot &t 

5 a. m. September 8, 1918 (discharge, determined from extension of rating 

curve, about 54 sec*ond-feet); water was undoubtedly being held at dam 

at Brodhead. »

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

13, December 16 to January 3, and January 13-20. Standard rating curve 

fairly well defined between 80 and 510 second-feet; poorly defined outside 

those limits; was used direct except for periods February 23 to March 31, 

April 8 to July 9, and August 16 to September 30, for which the indirect 

method for shifting control was used. Gage read to quarter-tenths twice 

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

rating table except for periods during which stage-discharge relation was 

affected by ice, for which it was ascertained by means of gage heights, one 

discharge measurement, observer's notes, and weather records, and except 

, for periods for which .shifting-control method was used. Records fair.

Discharge measurements of Sugar River near Brodhead, Wis., during the year

ending Sept, SO, 1921.

Date.

Jan. 18 « Mar. 29

Apr. 27

Made by 

 do... -do. .

&,

Feet.

2.43

1.6S

3.36

Discharge.

Sec.-ft. 

202 22?'

946

Date.

Sept. 22

Made by 

 do. 

Gage

height.

Feet. 

1.11

2.98

Discharge.

Sec.-ft. 

97

762

1 Ice cover above gage; channel open below gage.
114 SURFACE WAXEB SUPPLY, PART V.

Daily discharge, in second-feet, 0f Site&r Rivet near Brodhead, Wis., for the year

ending Sept. SO, 1921.

Day.

i.... ____ .

2....... __ ...

3 .. _ ......

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

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

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

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

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

9 .

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

u... ........ ...

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

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

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

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

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

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

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

19. ... _ .

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

21,.........-.,.

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

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

24 .

26 

26.....!........

27 .......

28 ..........

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

39 ......

31.. 

Oct.

209

198

180

196

191

239

196

180

209

156

180

173

196

209

235

196

ISO

248

248

9AK

248

196

200

148

248

222

248

222

235

248

196

Nov.

276

336

336

306

276

276

222

291

306

306

262

222

190

173

248

276 262'

235

248

209

175

209

222

248

222

235

283

248

235

Dec.

262

262

276

276

222

276

321

248

248

222

222

186

322

276

195

170

145

140

135

135

135

135

135

135

135

135

135

140

145

165

Jan.

185

210

250

276

291

248

276

222

306

209

262

235

235

220

210

210

210

210

210

215

222

336

336

183

321

590

248

209

235

170

222

Feb.

235

1IW

196

196

222

13d.

222

222

209

196

209

209

170

248

436

368

291

222

209

oac

248

222

235

196

222

222

158

170

Mar.

178

170

188

183

196

188

209

235

235

222

235

222

178

336

454

550

454

336

352

901

276

276

262

262

262

262

291

248

235

222

209

Apr.

222

196

196

222

196

222

208

262

235

222

291

248

235

276

276

262

; 196

248

336

710

885

885

885

710

550

590

930

1,020

930

590

May.

419

402

368

385

336

336

321

276

321

352

306

306

336

321

306

906

906

352

402

436

352

276

291

27£

336

472

472

590

550

473

368

June.

291

291

306

276

222

291

276

248

276

248

196

235

262

248

248

209

,262

235

165

183

235

196

196

209

141

148

' 235

248

419

263

July.

235

248

235

180

209

209

222

222

235

209

222

222

222

186

196

158

151

222

111

151

151

180

141

160

136

107

175

180

113

165

151

Aug.

144

109

196

191

193

158

134

173

100

158

276

306

291

222

222

222

'146

235

24S

419

368

454

402

291

235

209

222

148

235

193

321

Sept.

402

336

291

248

352

491

419

352

262

306

306

385

385

336

321

402

510

630

590

590

670

795

930

1,020

750

710

7W

550

368

368

Monthly discharge of Sugar River near Brodhead, Wis., for the year ending Sept.

SO, 19%1.

[Drainage area, 529 square mites.}

Month.

October... __________________

January. __________ . ........ ......

February.... . ..._ .__

April __ ... ........ __._ 

-\tav

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

August. __ _ . ____ .. ...........

The year.. _______ . .............

Discharge In seeond-feet.

Maximum.

248 

336 

321 

590 

436 

550 

1,030 

58ft 

419 

248 

454 

1,020

1,020

MijiinrnjTti -

148 

173 

135 

170 

134 

170 

106 

276 

141 

107 

100 

248

100

Mean.

209 

250 

197 

250 

225 

 265 

441 

366 

242 

184 

233 

494

279

Per square 

mite.

a 395 

.473 

.372 

.473 

.425 

.501 

.834 

.6921 

.457 

.348 

.440 

.934

.527

Ban-off in 

inches.

0.46 

.53 

.43 

.55 

.44 

.58 

.93 

.80 

.51 

.40 

.51 

1.04

7.18
'WEEK -MISSISSIPPI UIVEB BASIN.-

IOWA KCVI& AT MARSBAZ&TOWN. IOWA.

LOCATION. In sec. 23, T. 84 N., R. 18 W., at Third Avenue highway bridge, 1

mile north of Marshalltown, Marshall County, and 1 mile below site of old

gaging station. Asher Creek enters from left 1 mile above station, Burnett

Creek enters from left 1 mile below, and Linn Creek enters from right 2

' miles below.

DRAINAGE AREA. 1,380 square miles (measured on map issued by United States 

Geological Survey; scale, 1 to 500,000).

RECORDS AVAILABLE. May 21, 1915, to September 30, 1921. February 23 to 

August 8, 1903, from old site 1 mile above present station.

GAGE. Chain gage attached to downstream handrail of bridge, 60 feet from 

right pier; read by B. S. Beehrle.

DISCHARGE MEASUREMENTS. Made from bridge to which gage is attached or 

by wading.

CHANNEL AND CONTROL. Bed composed of mud. and sand; subject to shift. 

Banks subject to overflow, the left bank at stages above 13 feet. Gravel 

bar forms control for extremely low stages.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 13.23 feet at 

10.15 a. m., September 17 (discharge, 8,140 second-feet); minimum stage, 

1.80 feet August 8-10, 13-15, 20, 29, and 30 (discharge, 80 second-feet).

1915-1921: Maximum stage recorded, 17.74 feet June 4, 1918 (discharge, 

42,000 second-feet); minimum stage, 1.86 feet November 24;, 1917 (discharge, 

about 2 second-feet) 

ICE. Stage-discharge relation affected by ice during periods of extremely cold 

weather.

REGULATION. Operation of power plant at Eldora, abo«t 25 miles upstream, 

cause slight diurnal fluctuation at gage during periods of low water.

ACCURACY. Stage-discharge relation changed following the period of ice effect; 

affected by ice December 20 to February 14. Two well-defined rating 

curves used, applicable October 1 to February 14, and February 15 to 

September 30. Gage read to hundredths oace daily. Daily discharge 

ascertained by applying daily gage height to rating table except for period 

during which stage-discharge relation was affected by ice, for which it was 

ascertained by applying to rating table the daily gage height corrected for 

effect of iee by means of one discharge measurement, observer's notes, and 

weather re6ords. Open-water records good; winter records fair.

Discharge measurements of Iowa River at Marshatttown, Iowa, during: the yea?

ending Sept. SO, 1921.

[Made by E. D. BurchardL]

Date. ....

3a^l3.....-rt,

Feb. 15.........

irjr 10

height.

Feet. 

«4.01

6.03

5.47

Disftharge.

Sec.-ft.

. m

1,680

1,440

Date.

May 23. ,.,-

23.. _ ....

July 9 .. ...

height.

Feet. 

4.33

4.33

2.30

Discharge.

Sec.-ft. 

910

958

ISO

Date.

Sept. 19... _ -

Gage 

height.

Feet,

7.87

DfcK 

charge;

Set.-ft: 

.2,660

"Stage-discharge relation affected by ice.
116

Daily

SURFACE WATER SUPPLY, 1921, PAET V.

, in second-feet, of Iowa River at Marshalltown, Iowa, for the year 

ending Sept. 30,1921.

Day.

1 _____ . ...

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

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

4 __ .. .......

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

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

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

8---.. .

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

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

11 ______ ...

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

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

14... ______ .

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

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

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

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

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

20.-..,-........

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

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

23 .

24. . __ ..

25 __ 

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

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

28 ...... _ .

29 ...... ...

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

31 ....... 

Oct.

420

350

332

285

285

270

270

255

242

230

230

230

218

205

350

730

610

650

616

570

530

610

570

570

472

455

455

455

368

350

385

Nov.

610

770

895

985

895

985

1,080

1,310

2,080

1,610

1,510

1,410

1,410

1,360

1,310

985

895

850

770

730

730

730

730

700

730

730

730

730

940

9#>

Dec.

985

985

1,030

1,080

985

940

si n

730

730

730

650

610

610

610 610-

530

472

402

380

380

380

360

340

340

340

340

340

360

360

360

Jan.

380

400

400

440

500

600

ftnfl

900

850

800

600

500

480

asm

360

360

340

320

240

OCA

420

460

550

650

stnfl

750

600

460

420

420

460

Feb.

480

320

320

240

220

220

220

200

200

200

180

180

240

600

1,680

2,380

2,080

1,940

1,740

1,680

1,640

1,500

1,220 i fun

825

785

785

745

Mar.

705

705

705

705

705

705

625

625

625

585

585

585

585

705

910

865

825

785

785

74 e

745

665

745

745 705"

705

705

705

705

865

825

Apr.

785

745

625

625

585

665

785

825

825

785

745

665

625

625

665

1,270

1,400

1,580

1,450

1,220

1,140

1,180

1,040

1,040

1,000

1,000

1,000

955

865

785

May.

745

1,090

1,220

1,270

1, 180

1,090

955

910

785

785

825

785

745

665

625

585

585

585

585

665

705

745

910

865

865

745

825

955

955

1,270

1,640

June.

1,880

1,880

1,500

1,450

1,220

1,040

910

665

665

625

625

625

585

665

625

585

585

545

545

470

435

382

365

348

300

300

300

300

300

270

July.

270

300

270

240

240

215

190

190

190

165

165

165

152

202

178

152

140

140

130

130

120

120

110

110

100

. 100

90

140

152

120

152

Aug.

178

215

178

140

120

90

90

80

80

80

90

110

80

80

80

120

130

140

100

80

110

120

255

190

140

130

120

90

80

80

705

Sept.

505

545

585

470

300

228

202

140

190

240

ais

330

315

330

382

3,600

7,820

4,050

2,740

3,300

2,700

2,080

1,780

1,540

1,500

1,450

1,180

865

785

705

Monthly discharge of Iowa River at Marshalltown, Iowa, for the year ending

Sept. SO, 1921.

[Drainage area, 1,380 square mfles.]

Month,

December _ . _ . ______________

May ____ ..... 

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

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

Discharge in second-feet.

Maximum.

730 

2,080 

1,080 

900 

2,380 

910 

1,580 

1,640 

1,880 

300 

255 

7,820

7,820

Minimum.

205 

610 

340 

240 

180 

585 

585 

585 

270 

90 

80 

140

80

Mean.

405 

1,010 

587 

514 

852 

715 

917 

876 

700 

166 

138 

1,370

683

Per square 

mile.

0.203 

.732 

.425 

.372 

.617 

.518 

.664 

.635 

,i'507 

.120 

.100 

.993

.495

Run-off in 

inches.

0.34 

.82 

.49 

.43 

.64 

.60 

.74 

.73 

.57 

.14 

.12 

1.11

«.73
-MISSISSIPPI BIVEB BASIN. lit.

IOWA RIVER AT IOWA CITY, IOWA.

LOCATION. In sec. 15, T. 79 N., R. 6 W., at highway bridge about 500 feet below 

Chicago, Rock Island & Pacific Railway main-line bridge in Iowa City, 

Johnson County, three-quarters of a mile below Iowa State University's 

power plant, and three-quarters of a mile below old station, which was at 

county highway bridge a short distance above dam.

DRAINAGE AREA. 3,140 square miles (measured on map issued by United States 

Geological Survey; scale, 1 to 500,000).

RECORDS AVAILABLE. October 30, 1913, to September 30, 1921. June 1, 1903, 

to July 21, 1906, from station three-quarters of a mile upstream.

GAGE. Chain gage attached to upstream handrail of bridge about 40 feet from 

left pier of first span from left bank; read by August Wiese.

DISCHARGE MEASUREMENTS. Made from bridge to which gage is attached or 

from a boat about 1,000 feet downstream from bridge.

CHANNEL AND CONTROL. Bed composed of sand; shifting. No well-defined 

control. Right bank high and not subject to overflow; left bank is overflowed at ordinary high stages under a pile trestle approach to the bridge, 

and at extreme high stages, beyond left end of the approach also.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 12.20 feet at 

6.15 p. m. September 23 (Discharge, 14,300 second-feet); minimum stage, 

0.37 foot at 7.50 p. m. July 31 (discharge, 190 second-feet).

1903-1906; 1913-1921: Maximum stage recorded, 19.45 feet June 7, 1-91$ 

(discharge, 36,200 second-feet); minimum discharge, about 10 second-feet 

December 26, 1916.

ICE. Stage-discharge relation affected by ice during periods of extremely cold 

weather.

REGULATION. Considerable diurnal fluctuation is caused at low stages, owing to 

operation of power plant above station.

ACCURACY. Stage-discharge relation practically permanent except as affected by 

ice December 25-31, and January 11-19. Rating curve well defined throughout. Gage read to hundredths once daily. Daily discharge ascertained by 

applying daily gage height to rating table, except for periods during which 

stage-discharge relation was affected by ice, for which it was ascertained by 

applying to rating table daily gage height corrected for ice effect by means 

of one discharge measurement, observer's notes, and records obtained at 

power plant above station. Records good.

Discharge measurements of Iowa River at Iowa City, Iowa, during the year ending

Sept. 80, 1981.

Date.

Oct. 20

Dec. 7

Jan. 15

Apr. 21

Made by 

.... -do...... ... .........

 do.... ., .-.....

 do.. ....

Gage 

height.

Feet. 

1.50

2.30

 2.49

5.49

Discharge.

Sec.-ft. : "7to

1,340

1,010

4,020

Date.

Sept. 21

22

23

Made by 

-..-do.:........... ..

 do....... . 

Gage 

height.

Feet. 

2.95

12.46

11.29

12.18

Discharge.

Sec.-ft. 

1,720

14,700

11,700,

14,000

 Stage-discharge relation affected by ice. , .

6 Student of graduate school, University of Iowa, working under supervision of Prof. F. A: Naglqr, of 

the hydraulics department.
118 SURFACE WATER SUPPLY, 1921, PAET V.

Daily discharge, in second-feet, of Iowa River at Iowa City, Iowa, for the year ending

Sept. SO, 1921.

Day.

I....- .....

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

3...-. .....

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

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

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

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

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

Q

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

11... .......... -

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

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

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

15... -.... ...

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

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

18.1............

1Q

20-.. .....

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

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

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

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

25.. __......_.__

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

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

28..,». .........

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

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

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

Oct.

672

672

700

672

730

700

300

345

300

662

300

320

320

320

264

300

508

264

672

618

672

760

760

645

730

730

820

700

508

618

508

Nov.

672

535

645

672

672

1,210

1,210

1,780

1,280

1,350

1,490

1,490

1,490

1,380

1,380

1,350

820

1,420

1,490

1,560

1,280

1,140

1 140 i!oio

1,080

945

QA £

1,080

Dec.

1,080

1,140

1,210

1,350

1,280

1,280

1,280

1,140

1,080

1,140

1,210

1 140

1 140

I'oso Qo/\

562

618

645

645

590

452

500

CQA

600 fifln

600

600

650

Jan.

820

820

880

945

945

945

945

945

1,010

1,080

1,040

1,000

1,000

1 000 1)000

945

920

900

910

945

945

820

760

820

945

880

1, 010

1,010

1,080

1,010

Feb.

1 140

1,080

945

820

820

760

820

820

672

618

618

672

672

730

1 140

1,420

1,560

1, 780

2 680

1,710

1 640

1,710

1,860

1 7firt

1,780

i sfifl

1 ftAO

1,420

Mar.

1,640

1 490

1,080

1,080

1,080

1,010

1,010

1,010

1,010

1,010

1,010

880

1,780

1,280

1,280

1,280

1,420

1,280

1 140

1 140

1,080

1,080

1,010

1,010

1,010

945

1,010

Apr.

880

945

1,010

1,080

945

1,010

880

1,010

1,080

945

945

945

1,010

945

820

1,780

1,420

2,020

2,020

3,550

3,820

3,370

2,940

2 430

%430

2

j|Qfl

0 Sfift

2 600

2, 600

2,430

May.

2,260

2,180

2,430

2,680

2,600

2,430

2,340

2,180

2,100

2,94,0

4,090

3,110

2,520

2,340

2,180

1,860

1,780

1,640

1,560

1,420

1,420

1,350

1,210

1 9Rfl

1,350

1,560

1,560

1,280

1,350

June.

2,100

2,680

2,260

2,340

2,430

2,340

2.020

1,780

1,490

1,490

1,420

1,280

1,210

1,140

1,080

1,490

1,420

1,280

1,140

1,280

1,140

1,210

1,140

1,010

945

880

1,140

1,210

1,140

July.

1,080

945

730

820

730

645

5»2

590

370

480

452

508

398

618

508

398

370

2,520

590

452

452

398

345 QQQ

280

280

280

248

236

228

190

Aug.

672

1,140

1,210

945

760

1,140

700

590

280

345

280

300

300

590

300

345

280

345

345

1, 010

562

300

672

370

37ft

452

300

*M.*C

280

345

452

Sept.

345

590

618

1,140

880

760

880

820

780

672

61$

- 508

562

1,010

1,080

6,820

6,000

4,920

6,110

11,400

13,800

12,300

14,300

13 onn

10,200

7,970

6,000

3,«10

3,280

2,940

Monthly discharge of Iowa River at Iowa City, Iowa, for the year ending Sept,

30, 1921. 

[Drainage area, 3,140 square miles.]

Mouth,

March ________ . ______ .... ......

April........... _.... ........ ..,_. 

May ______________ . __ _ ..........

June . .

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

August ____ __________ ...........

The year.. ________________

Discharge in second-feet.

Maximum.

820 

1,780 

1,420 

1,080 

2,680 

1,780 

3,820 

4,090 

2, 680 

2,520 

1,210 

14,300

14,300

Minimum.

264 

535 

452 

760 

618 

880 

820 

1,210 

880 

190 

280 

345

190

Mean.

548 

1,160 

931 

945 

 1,260 

1,150 

1,770 

2,000 

1,490 

552 

527 

4,490

1,390

Per

square 

mil<\

0.175 

.369 

.296 

,301 

.401 

.366 

.564 

.637 

.475 

.176 

.168 

1.43

.442

Run-off 

in inches.

0.20 

.41 

.34 

.35 

.42 

.42 

.63 

.73 

.53 

.20 

.19 

1.60

6.02

IOWA RIVER AT WAPEIIO, IOWA.

LOCATION.- In sec. 27, T. 74 N., R. 3 W., at highway bridge half a mile from 

railroad station at Wapello, Louisa County, and: 20 miles above mouth of 

river. No important tributaries enter near station. \

DRAINAGE AREA. rAt gaging/ statlflB, 12,480 square miles; at mouth, 12,600 

square miles (measured on map issued by United States Geological Survey; 

scale, 1 to 500,000).

RECORDS AVAILABLE. February 26, 1915, to September 30, 1921.

GAGE. Chain gage attached to highway bridge near center of first span from 

right abutment; read by C. W. Warren.

DISCHARGE MEASUREMENTS. Made from bridge to which gage is attached.
t?PPEB &IS6ZBS1FPE ItlVEB BASfiT.

CHANNEL AND CONTROL. Bed Composed of sand and gravel; shifting.' ' 'Right 

bank high and not subject to overflow; levee along left bank, which broke 

during flood of June, 191&.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 9.6 feet at 

7 a. m. September 24 (discharge, 32,400 second-feet); minimum discharge, 

1,420 second-feet September 1 and 2.

1915-1921: Maximum stage recorded, 14.94 feet June 8,1918 (discharge, 

63,100 second-feet); minimum discharge, about 400 second-feet December 

15-17, 1916 (stage-discharge relation affected by ice).

The flood of June, 1892, was probably much higher than the flood of 

June, 1918.

ICE. Stage-discharge relation seriously affected by ice.

ACCURACY. Stage-discharge relation changed gradually during the yearj affected by ice December 17 to February 2. Standard rating curve fairly 

well defined. Gage read to hundredths at least once daily except during 

brief periods in January. Daily discharge ascertained by shifting, control 

method except for periods during which stage-discharge relation was affected by ice for which it was ascertained by means of gage heights, observer's notes, and weather records. Records good.

Discharge measurements of Iowa River at Wapello, Iowa, during the year ending

Sept. 30, 1921.

[Made by C. Herlofson.]

Date.

.Nov. 19 

Jeb. 4.... ....................

Gage 

height.

Feet. 

1.79 i <^

Discharge.

See.-ft. 

4,040

3,600

Date.

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

July 20-- 

Gage 

height.

feet. 

4.48

1.73

Discharge.

S«c.-ft. 

11,800

q 7QA

Daily di :, in second-feet, of Iowa River at Wapello, Iowa, for the year ending 

Sept. SO, 1921.

Day.

1 

2 _

3... .

4. ......

5. ......

6... .

8 .

9 

10 .......

11 ___ . _

12... ...

13 ..

14.... ......

15 

-16 -w

17 ........

18 .

19... ...... .

20 

 21 

. 22.. .

-23 

24 

25 

 26

 ».... ..

28

29 

30. .. .

31 

Oct.

2,820

2,820

2,640

2,480

2,390

2,390

2,310

2,310

2,310

2,230

2,230

2,150

2,150

2,070

2,070

2,000

2,000

2,070

2,070

2,070

2,150

2,390

2,820

2,820

2,820

2,820

2,820

2,640

*> fi4fi

2,480

Nov.

2,560

2,560

2,560

2,560

2,730

2,730

2,910

2,910

2,910

3,470

4,520

4,970

5,690

6,200

5,940

5

AAf\

4,970

4,520

4,090

4,300

4,520

4,520

4,09a

3,880

3,880

3,880

3,880

3,880

3,880

3,880

Dec.

3,880

3,880

4,090

4,300

4,520

4,520

4,520

4,300

4,300

4,090

4,090

4,090

3,880

3,880

3,670

3,670

3,600

2,900

2,700

2,600

2,500

2,400

2,300

2,200

2,400

2,600

2,600

2,800

2,800

2,800

9 &ftft

Jan.

3,000

3,000

3,000

3,000

3,000

3,500

3,500

3,500

3,500

3,500

4,000

4,000

4,000

5,000

5,000

4,000

3,500

3,500

3,500

3,800

3,800

3,800

3,800

3,800

3,800

3,800

3,000

3,900

4,000

4,000

4,000

Feb.

4,000

4,200

4,620

3,670

3,280

2,910

2,560

3,280

3,090

2,910

2,910

2,910

2,910

3,280

3,280

3 OCA

4,300

4,970

5,690

6,470

7,020

6,470

6,470

6,470

5,940

5,440

5,440

5,440

Mar.

5,320

5,320

4,860

5,080

4,410

4,410

4,200

4,200

3,980

3,980

3,783

3,780

3,780

3,980

5,820

5,820

5,560

5,560

5, 320

5,320

4,860

4,630

4, 630

4,410

4,410

4,630

4 630

4,410

4,200

3,980

4,200

Apr.

4, 410

4,410

4,200

4,200

4,200

4,200

3,780

3,780

3,980

3,980

3,380

3,180

3,780

3,780

3,780

5,080

6,070

6,070

8,030

10,900

12,600

13, 700

11,900

10,500

9,570

9,260

9,890

10,900

10,900

10,500

May.

9,570

8,940

8,330

8,330

8,330

8,030

7,740

7,740

7,160

8,330

12,600

14,100

11,200

10,200

11,900

10 900

8^640

7 44fl

6,880

6,340

6, 070

4,200

7,740

8,030

8,330

8,640

7,740

7,160

7,440

8,640

June.

10,700

13,200

16,500

18,400

18,800

18,000

10,700

9,410

8,180

7,590

7,020

6,740

6,470

7,300

8,180

7,590

8,790

7,020

6,470

6,200

5,940

5,440

5,440

4,970

4,740

4,520

4,740

4,970

4,670

July.

4,410

3,980

3,780

3,570

3,380

3,570

3,180

3,180

3,000

2,820

2,640

2,480

2,480

2,360

2,310

2,820

2,310

2,310

5,080

3,780

2,480

2,310

2,000

1,920

1,840

1,700

1,700

1, 770

1,700

1,490

Aug.

1,700

5,690

10,700

5,940

4,520

3,280

4,970

3,880

2,910

2 390

2,150

2,070

2,000

2, 910

2,310

2,070

1,920

1,770

1,840

2,390

4,300

2,910

2,560

2,390

2,230

2,070

1,620

1,840

1,700

1,630

Sept.

1,420

1,420

1,840

2,310

2,640

3,980

2,640

2,310

2,230

4,410

4,200

3,570

2,640

3,180

3,780

6,600

15,900

22,300

24,600

23,200

26,200

27,600

31,400

31,900

28,100

24,900

21,500

17,900

16,700

10,900

NOTE. Gage not read Jan. 3, 4, 6, 7, 16, 18, 19, 21, 23, 24, and 26-28; discharge interpolated or estimated after discharge for intervening days had been ascertained as explained under "Accuracy" in station description.
120 SUEFACE WATEE SUPPLY, 1921, PABI V.

Monthly discharge of Iowa River at Wapello, Iowa, for the year ending Sept.

80, 1921.

[Drainage area, 12,480 square miles.]

Month.

July.....-.... ................ ...........

Discharge in second-feet.

Maximum.

2,820 

6,200 

4,520 

5,000 

7,020 

5,820 

13,700 

14, 100 

18,800 

5,080 

10,700 

31,900

31,900

Minimum.

2,000 

2,560 

2,200 

3,000 

2,560 

3,780 

3,180 

4,200 

4,520 

1,490 

1,490 

1,420

1,420

Mean.

2,400 

3,960 

3,410 

3,720 

4,400 

4, 630 

6,830 

8,510 

8,560 

2,710 

2,980 

12,400

5,360

Per square 

mile.

0.192 

.317 

.273

.298 

.353 

.371 

.547 

.682 

.686 

.217 

.239 

.994

.429

Run-off 

in laches.

0.22 

.35 

.31 

.34 

.37 

.43 

.61 

.79 

.77 

.25 

.28 

1.11

5.83

CEDAR RIVER AT JANESVILLE, IOWA.

LOCATION. In sec. 35, T. 91 N., R. 14 W., at highway bridge in Janesville, 

Bremer County, a quarter of a mile above old gaging station and 3 miles 

above junction with Shellrock River.

DRAINAGE AREA. 1,660 square miles (measured on map issued by United States 

Geological Survey; scale, 1 to 500,000).

RECORDS AVAILABLE. April 26, 1905, to September 30, 1906; May 26, 1915, to 

September 30, 1921.

GAGE. Chain gage attached to downstream handrail of middle span of highway 

bridge; installed July 26, 1919. Prior to that date a chain gage attached to 

Illinois Central Railroad bridge, a quarter of a mile downstream, was used. 

Gage read by Mrs. Lizzie Ulrich.

DISCHARGE MEASUREMENTS. Made from highway bridge or by wading.

CHANNEL AND CONTROL. Bed composed of sand and gravel. Ruins of an old 

grist mill dam forms control; probably permanent.

EXTREMES OP DISCHARGE. Maximum stage recorded during year, 11.45 feet at 

9.45 a. m. May 29 (discharge, about 27,000 second-feet); minimum stage 

recorded, 1.61 feet at 5.45 p. m. July 8 (discharge, 122 second-feet).

1905-6 and 1915-1921: Maximum stage recorded same as for 1921; minimum discharge recorded, 100 second-feet November 3, 1915; minimum flow 

caused by regulation at Waverly dam.

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

REGULATION. Slight diurnal fluctuation at low stages is caused by operation of 

power plant at Waverly, 9 miles above station.

ACCURACY. Stage-discharge relation practically permanent except as affected by 

ice. Rating curve well defined between 150 and 3,500 second-feet; extended 

above 3,500 second-feet and may be in error. Gage read to hundredths once 

daily except during periods October 17 to November 13 and December 18 to 

February 14, when no gage readings were obtained. Daily discharge ascertained by applying daily gage height to rating table except for periods during, 

which gage was not read for which it was ascertained by comparison with 

flow of this river at Cedar Rapids and of Shellrock River near Clarksville. 

Records good, except those for high stages.
UPPER MISSISSIPPI BIV3R BASIH, 121

Discharge measurements of Cedar .River at Janesville, Iowa, during the year ending

Sept. 30, 1921.

Date. Made by 

.. do.-.-.. 

&,

Feet. 

2.31

3.16

Discharge.

Sec.-ft. 

SOS

1,280

Date.

Sept. 27

Made by 

E. D. Burchard __

Burchard and Clyde...

Gage 

height.

Feet. 

4.56

2.48

Discharge.

Sec.-ft. 

2,980

680

Daily discharge, in second-feet, of Cedar River at Janesville, Iowa, for the year

ending Sept. SO, 1921.

Day.

1 . .......

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

18.........

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

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

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

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

23--.-.-........

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

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

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

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

28 ..........

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

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

31 ..........

Oct.

316

316

299

304

299

299

282

282

294

3M)

316

322

328

310

316

360

Nov.

650

470

ion

383

396

402

409

470

470

470

470

470

542

620

620

620

Dec.

620

620

620

620

620

620

580

542

CAR

505

606

506

505

505

Wls

505

1 360

Jan.

500

,

Feb.

460

660

1,360

1,800

1,410

1,250

1,300

1,100

798

660

660

542

505

Mar.

542

580

542

505

505

505

542

580

435

470

605

505

680

1,200

1,460

660

435

370

542

580

620

580

620

660

660

620

660

705

706

660

Apr.

542

620

250

225

428

542

428

505

580

750

580

580

506

580

542

542

660

580

620

580

620

505

580

705

396

409

995

945

895

750

May.

750

705

705

760

660

705

660

620

422

660

4,880

2,920

1,040

705

660

620

2,660

2,280

2,400

2,660

2.660

2,400

1,920

1,300

1,140

1,580

3,340

14, 700

25,500

10,300

7,320

June.

3,060

1,920

1,460

1,140

1,460

1,360

1, 140

1,140

1,100

1,100

1,100

1,140

1,410

1,250

1,140

1,100

995

798

798

620

620

620

580

580

580

620

620

580

580

542

July.

542

542

505

470

435

370

340

122

220

174

605

340

470

282

256

230

282

265

182

205

182

182

230

310

182

206

230

230

255

282

310

Aug.

340

310

182

160

282

255

250

256

225

230

230

255

282

255

230

205

255

230

182

230

230

230

255

282

272

240

230

230

230

205

230

Sept.

240

272

260

272

255

294

282

260

256

240

230

. 205

230

272

750

2,280

895

620

1,680

542

1,040

798

705

660

660

580

470

605

316

NOTE. Braced figures show estimated mean discharge for periods indicated.

Monthly discharge of Cedar River at Janesville, Iowa, for the year ending Sept. 80,

1921.

[Drainage area, 1,660 square miles.]

Month.

October. __________ __

December. _________ _ .

February __________ . .

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

May-. ...... ..............

July... . . ..... 

August ____________________

Discharge in second-feet.

Maximum.

620

1,800

1,460 

995 

26,500 

3,060 

542 

340 

2,280

25,500

Minimum.

' 282 

383

370

225 

422 

642 

122 

160 

205

122

Mean.

332

553 

466 

500 

728 

622 

681 

3,210 

1,040 

301 

241 

541

761

Per square

mile.

0.200 

.333 

.280 

.301 

.439 

.375 

.350 

1.93 

.627 

.181 

.145 

.326

.458

Run-off 

in inches.

0.23 

.37 

.32 

.35 

.46 

.43 

.39 

2.22 

.70 

.21 

.17 

.36

6.21
SITBFACE WATEE fctfPPLY, 1021, PART V. 

CBBAB ET78R AT CEDAR KAPIDS, IOWA.

LOCATION. In sec. 28, T. 83 N., R. 7 W., in central part of Cedar Rapids, Linn 

County, half a mile below a dam and power plant and 1,000 feet above 

Eighth Avenue Bridge.

DRAINAGE AREA. At gaging station, 6,640 square miles; at junction ^ith Iowa 

River, 7,930 square miles (measured on map issued by United Spates Geological Survey; scale, 1 to 500,000).

RECORDS AVAILABLE. February 14, 1903, to September 30, 1921.

GAGE, Gurley water-stag^ recorder on right bank in rear of plant of Iowa 

Windmill & Pump Col; installed August 20, 1920. Prior to that date 

an inclined staff gage at same location and datum was used. .Elevation of 

zero of both gages, from Northwestern Railroad levels, 723.03 feet above 

sea level. Observer, R. S. Toogood.

DISCHARGE MEASUREMENTS. -Made from upstream side of Eighth Avenue 

Bridge.

CHANNEL AND CONTROL. Bed composed of rock and gravel;, free from vegetation; practically permanent.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 8.4 feet at 8 p. m. 

June 1 (discharge, 17,900 second-feet); minimum stage, 2.23 feet at 7 a. m. 

September 9 (discharge, about 190 second-feet).

1902-1921: Maximum stage recorded, 17.2 feet April 1, 1912, and March 

- 26, 1917 (discharge, 54,100 second-feet); minimum stage recorded same as 

for 1921.

Greatest known flood probably occurred in June, 1851, when the maximum stage was about 20 feet (discharge, about 65,000 second-feet).

ICE. Stage-discharge relation affected by ice during extremely cold weather. 

The swift current and the proximity of the power plant keeps measuring 

section open during mild winters.

REGULATION. Since 1917, operation of power plant half a mile above gage has 

caused marked diurnal fluctuation during periods of low water. There is 

no dam below gage which might cause backwater.

ACCURACY. Stage-discharge relation practically permanent except as affected 

by ice December 21 to January 18. Rating curve well denned above 1,000 

second-feet. Operation of water-stage recorder satisfactory. Daily discharge ascertained by applying to rating table mean daily gage height obtained from recorder graph by inspection except for period during which 

stage-discharge relation was affected by ice, for which it was ascertained by 

applying to rating table mean daily gage height corrected for ice effect by 

means of one discharge measurement, observer's notes, and weather records. 

Open-water records excellent; winter records fair.

COOPERATION. Gage-height record furnished by United States Weather Bureau.

Discharge measurements of Cedar River at Cedar Rapids, Iowa, during the year

ending Sept. SO, 1921.

[Made by E. D. Burchard.]

Date.

Apr. 19.............................................................................

&,

Feet. 

"3.61

4.74

Discharge.

Sec.-ft. 

1,780

5,070

Stage-discharge relation affected by ice.
UPPER MISSISSIPPI EIVEB BASIN. 123

Daily discharge, in second-feet, of Cedar River at Cedar Rapids, Iowa, for the year

ending Sept. SO, 1921.

Day.

1 ..

2_____ _\ ... .

3__._....._...

4 _

5.... .

6.. . _ _.

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

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

9 ... . ...

10 .

11__... .........

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

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

14.. -_..________

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

16...-. _____

17... .._......-.

18... ___________

19, - ._-_.

20 .

21 . __________

22 

23 . _______

24 

25... _________ .

26 ...... ....

27 

28-. 

29 ....

30 __... 

31 _____ ...

Oct.

1,970

1,860

1,760

1,760

1,560

1,660

1,560

1 f-Afi

1,370

1,200

1,760

1,370

1,370

1,370

1,280

1,370

9 ftfiA

9 A^ft

2,430

2,320

2,080

1,970

1,970

1,970

1 ftfif.

1 Q7fl

1,860

1,760

1,660

1 660

1,460

Nov.

1,370

1,560

1,760

2,200

2,670

2,800

2,920

9 Q9fl

3,450

4,300

4,590

4,590

4,300

3,320

9 Rftft

3,050

9 Hftft

2,550

2,920

q nen

9 A^W

9 ^9ft

2,430

2,430

2,550

9 t\t\(\

2,550

9 .l^ft

9 Wfl

Dec.

2,670

2,920

3,180

q JKfl

3,450

3,450

3,320

3,050

2,020

9 ftnn

2,550

2,430

2,430

2,430

2,670

o fwjn

o nftrt

1,660

1,040

oni

850

nert

1,500

2,000

2,200

1,800

1,800

1,800

1,900

Jan.

1,900

1,900

1,900

2,000

1,900

1,900

2,000

2,200

2,400

2 nnn

2,200

2,400

2,600

1,900

2,000

1 Q(V|

1,400

1,120

1 660

1,860

1,860

1,970

2,080

2,430

S

ARA

2,670

2 gen

2,550

2,550

Feb.

2,320

2,320

2,200

2,080

2,080

2,320

2,200

1,660

1,370

1,660

1,860

1,970

2,430

9 Rftft

3 Q7fi

4,010

A snn

5,790

5,790

5,180

4, 880

4,880

3,730

q cart

3

070

3,450

Mar.

3,590

3,870

2,800

2,670

2,670

2,670

2,550

2,670

2,670

2,670

2,550

2,550

2,550

2,920

3,450

3,590

3,590

3,450

3,320

3,180

3,050

3,050

3,320

3,450

3,320

3,180

3,180

3,050

3,050

3,320

3,450

Apr.

3,320

3,180

2,920

2,800

2,670

2,550

2,430

2,430

2,430

o _iqfi

2,670

2,670

2,670

2,550

2,550

2,920

q ncrt

3,450

4,880

5,790

5,480

5,180

5,180

A KQft

4,300

5,180

4,880

4,880

M<ty.

4,590

4, $00

4,010

3,870

4,010

4,300

3,590

3,450

3,320

3,320

3,730

4,590

7, «SO

7,050

4,880

3,870

3,450

3,180

3, §50

3,730

5,180

5,790

6,100

5,790

4,880

4,300

4,380

6,100

8,010

11,100

June.

16,300

15,900

11,400

8,010

6,410

5,480

4,590

4,300

4,010

3,870

3,870

4,590

5,480

5,480

5,180

4,590

4,300

4,010

3,590

3,320

3,180

2,800

2,670

2,550

2,320

2,550

2,320

2,430

2,320

2,320

July.

2,200

2,080

1,860

1,970

1,860

1,860

1,760

1,760

1,660

1,460

1,460

1,460

1,370

1,280

1,280

1,370

975

1,370

1,460

1,280

1,040

1,020

1,020

1,120

905

961

919

975

1,020

1,120

975

Aug.

879

1,040

1,280

1,040

1,120

1,120

1,040

975

905

905

905

905

905

989

1,120

853

1,280

1,280

1,120

1,120

1,040

1,120

1,030

1,030

975

1,030

1,120

933

933

1,000

1,120

Sept.

1,120

1,120

1,280

1,200

1,280

1,200

1,040

1,040

788

1,120

989

1,370

1,200

1,370

i 9sn

5,790

5,480

5,480

6,730

10,700

11,100

7,370

6,410

5,790

5,180

4 snn

3,870

3,870

3,450

3,180

Monthly discharge of Cedar River at Cedar Rapids, Iowa, for the year ending Sept.

30, 1921.

[Drainage area, 6,640 square miles.]

Month.

October..... _ ...... _ _ _ . __ .

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

January. _ _ .. ._ _ ______

February ___ ___________ ________ March __ . . _ _ __

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

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

September _______ ____________

Discharge in second-feet.

Maximum.

2,430 

4,590 

3,450 

3,050 

5,790 

3,870 

5,790 

11,100 

16,300 

2,200 

1,280 

11,100

16,300

Minimum.

1,200 

1,370 

801 

1,120 

1,370 

2,550 

2,430 

3,050 

2,320 

905 

853 

788

788

Mean.

1,750 

2,820 

2,250 

2,120 

3,160 

3,080 

3,660 

4,840 

5,000 

1,380 

1,040 

3, 1 40

2,880

Per

square 

mile.

0.264 

.425 

.339 

.319 

.476 

.464 

.551 

.729 

.753 

.208 

.157 

.533

.434

Run-off 

in inches.

0.30

.47 

.39 

.37 

.50 

.53 

.61 

.84 

.84 

.24 

.18 

.59

6.86

81182 24t wsp 525 9
124 SURFACE WATER SUPPLY, 1981, PART V.

SHEIIEOCK BITER NEAR CIARKSVHLE, IOWA.

LOCATION. In T. 92 N., R. 16 W., at highway bridge 1J miles northwest of 

ClarksviUe, Butler County, and 25 miles above junction with Cedar RiverNo large tributaries enter for several miles above or below.

DRAINAGE AREA. 1,660 square miles at station; 2,680 square miles at junction*, 

with Cedar River (measured on map issued by United States Geological 

Survey; scale, 1 to 500,000).

RECORDS AVAILABLE. May 28, 1915, to September 30, 1921.

GAGE. Chain gage attached to handrail on upstream side of bridge,, 75 feet from; 

right abutment; read by Mrs. H. H. Sherburne.

DISCHARGE MEASUREMENTS. Made from bridge to which gage is attached or bywading.

CHANNEL AND CONTROL. Bed composed of rock and sand; probably permanent.. 

, Right bank high and not subject to overflow; left bank probably subject to 

overflow at extreme high stage.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 9.33 feet at5.30 a. m. May 28 (discharge, 7,860 second-feet); minimum stage recorded,.

1.10 feet at 7 a. m. August 15 and September 5 (discharge, 140 second-feet) -

1915-1921: Maximum discharge recorded, 12,200 second-feet June 2,1916;.

minimum discharge, estimated 100 second-feet December 10-13, 1916.

In April, 1907, a stage of about lb.5 feet was reached (discharge, about 

19,000 second-feet).

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

winter.

REGULATION. Slight diurnal fluctuation may occur during low water, owing to-- 

operation of power plant at Greene, 10 miles upstream.

ACCURACY. Stage-discharge relation practically permanent except as affected by 

ice December 16 to February 16. Rating curve well defined between 125 and 

10,000 second-feet. Gage read to hundredths once daily except duringperiod of ice effect and a few other brief periods, when no gage readings wereobtained. Daily discharge ascertained by applying daily gage height to 

rating table except for period of ice effect and a few other brief periods when 

gage was not read for which it was ascertained as indicated in footnote ta 

table of daily discharge. Records good.

Discharge measurements of Shell Rock River near Clarksville, Iowa, during the yearending Sept. 80y 1921.

[Made by E. D. Burchard.]

Date.

May 24. _ .... ___ . ___ . __________ . _ ._---.--._-.__________.__-__.___

Junel-.. _____________ .. .. . ._ ..._ _ -----

Sept. 27 ________ ..... __ ... ___ .. __ ...... ....--.-..-..... ....-...

Gage 

height.

Feet. 

2.66

4.63

1.79

Discharge.

Sec.-ft. 

905

2,390,

364
UPPER MISSISSIPPI BIVEB BASIN.

Daily discharge, in second-feet, of Shell Roek River near Clarksville, Iowa, for the 

year ending Sept. SO, 1921.

Day.

\... ...........

2----... _ ....

Q... ...........

4... ___________

6 

7_. ____________

8 

9___. ..........

10 

n.. ............

n.. ............ i3 _ 

14__.___ _______ 15 _____ ...

16. __________ ...

n.. ............

18- ie______________

20 

21 

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

23. _____________

24__________.___

25 ________

26 

27_______. ______

28 

29 

30 

31______________

Oct.

4«2

348

348

348

320

298

275

255

235

220

220

220

220

205

600

512

430

402

375

402

430

375

375

348

320

320

298

298

275

275

275,

Nov.

255

790

700

650

550

1,900 1

1,810

1,730

1,500

1,340

1,120

855

692

660

630

600

600

570

680

790

725

692

758

725

692

692

660

630

985

Dec.

1,060

1 060

985

855

855

790

725

660

660

630

630

630

630

630

485

420

Jan.

550

Feb.

500

3,800

1,970

1,500

1,270

1,120

1,060

920

855

692

630

570

570

512

Mar.

 570

540

540

512

512

630

600

570

512

512

512

512

512

512

485

485

485

600

790

758

692

660

660

860

1,060

1,270

1,060

920

855

Apr.

758

692

660

608

570

692

760

725

630

630

660

692

670

650

600

570

540

512

725

692

630

660

692

540

790

600

570

485

May.

430

430

430

485

540

600

485

430

430

920

692

430

375

320

320

268

348

1,200

2,570

2,660

1,890

1,420

1,060

855

985

1,340

3,980

7,280

4,780

3,760

2,760

June.

2,390

1,970

1,730

1,500

1,270

920

855

790

758

2,140

2,050

1,890

1,500

1,200

985

855

758

660

570

540

540

485

458

458

458.

430

540

458

430

430

July.

375

348

298

298

298

298

268

298

268

275

275

275

255

255

255

255

235

235

205

205

205

205

220

235

205

180

205

205

192

180

205

Aug.

220

255

255

235

220

205

220

180

180

180

205

160

170

180

140

160

192

205

180

170

170

160

192

192

192

180

170

205

205

205

205

Sept.

205

192

206

205

1.0

170

UO

180

150

160

180

170

160

205

235

1,420

2,760

1,570

1,270

790

1,120

855

780

570

458

430

320

268

275

275

NOTE. Stage-discharge relation affected by ice Dec. 16 to Feb. 16; gage not read except on Feb. 16; discharge ascertained by comparison with flow of Cedar River at Cedar Rapids and at Janesville. Gage 

not read Nov. 3-5, 7, 20, Feb. 18,19, Mar. 13, 26, Apr. 15 and 16; discharge ascertained by comparison with 

flow at gaging stations on Cedar River. Braced figures show mean discharge for periods indicated.

Monthly discharge of Shell Rock River near Clarksville, Iowa, for the year ending

Sept. 80, 1921.

[Drainage area, 1,660 square miles.]

Month.

July 

Discharge in second-feet.

Maximum.

600 

1,900 

1,060

3,800 

1,270 

790 

7,280 

2,390 

375 

255 

2,760

7,280

Minimum.

205 

255

485 

485 

298 

430 

180 

140 

140

140

Mean.

330 

856 

581 

550 

820 

652 

641 

1,440 

1,000 

251 

193 

531

651

Per square 

mile.

0.199 

.516 

.350 

.331 

.494 

.393 

.386 

.867 

.602 

.151 

.116 

.320

.392

Run-off in 

inches.

0.23 

.58 

.40 

.38 

.51 

.45 

.43 

1.00 

.67 

.17 

.13 

.36

5.31
126 SUEFACE WATER SUPPLY, 1921, PAET V.

SKUNK RIVER NEAR AMES, IOWA.

LOCATION. In sec. 23, T. 84 N., R. 24 W., at site of old county bridge, 2|

north of Ames, Story County, 5 miles above mouth of Squaw Creek, and 

3| miles below Keigley Branch.

DRAINAGE AREA. 320 square miles (measured on topographic map and on 

United States post-route map).

RECORDS AVAILABLE. July 28, 1920, to September 30, 1921.

GAGE. Stevens continuous water-stage recorder on left bank; installed August 

25, 1921; inspected by W. P. Coon. Prior to August 25, 1921, inclined 

staff gage at same location and datum was used.

DISCHARGE MEASUREMENTS. Made from new county highway bridge a quarter 

of a mile downstream from gage or by wading.

CHANNEL AND CONTROL. Left bank not subject to overflow; right bank subject to overflow at extreme high stages. Backwater is caused at gage at 

times, by debris lodged against new county bridge, a quarter of a mile 

downstream. Natural control formed by rock ledge; permanent. Construction of an artificial concrete control was begun August 30 and continued 

until the middle of September, when high water destroyed part of the forms. 

Nothing further has been done toward completing the structure. Discharge 

measurements made after the flood indicate that the remains of the structure 

changed the stage-discharge relation at the gage for low stages.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 9.2 feet at 

noon September 17 (discharge, about 3,540 second-feet); minimum stage 

recorded, 1.60 feet July 31 (discharge, 1.5 second-feet).

1920-21: Maximum and minimum stages same as for 1921.

ICE. Stage-discharge relation possibly affected by ice for brief periods during 

extreme cold weather; observations discontinued during winter.

ACCURACY. Stage-discharge relation for low stages changed during the high 

water of September (see under "Channel and control"); affected by backwater from forms for concrete control, below gage August 30 to September 

15 (see under "Channel and control"), and by ice December 16 to February 14. Two rating curves used; one, applicable October 1 to September 

15, well defined below 2,500 second-feet, the other, applicable September 

16-30, is a revision of the previous curve below 700 second-feet, and is well 

defined between 30 and 2,500 second-feet. Staff gage read to hundredths 

once daily prior to August 25, except as noted in footnote to table of daily 

discharge; operation of water-stage recorder satisfactory August 25 to 

September 30. Daily discharge ascertained by applying to rating table 

daily gage height from staff gage or mean daily gage height obtained from 

recorder graph by inspection, except as indicated in footnote to table of 

daily discharge. Records good.

Discharge measurements of Skunk River near Ames, Iowa, during the year ending Sept. 30, 1921.

[Made by E. D. Burchard.]

Date.

July 26. -- 

Gage 

height.

Feet. 

2.83

1.63

Discharge.

Sec.-ft. 

116

1.6

Date.

Sept. 16--- -

Gage 

height.

Feet. 

«3.24

7.40

Discharge.

Sec.-ft. 

101

2,260

Date. Gage 

height.

Feet. 

67 on

Discharge.

Sec.-ft, 

2,470^

° Stage-discharge relation affected by backwater from forms for artificial concrete control below gage. 

* Stage-discharge relation affected by backwater from drift lodged against county bridge, a quarter of a 

mile below gage.
UPPER MISSISSIPPI KIVEE BASEST. 127

Daily discharge, in second-feet, of Skunk River near Ames, Iowa, for the year

ending Sept. 30, 1921.

Day.

l . _ _ .

2 

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

4 _ . . ..

5 _______ 

6 ___ . '..

7 ........ ___

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

9

10 ....

11 . . . . -

12 ... . . ..

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

14

15 ......

16 .....

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

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

19 . ...

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

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

22

23 ......

24 __ ..--...

25

26

27 . .

28... .. .

29 .

30

31-. .

Oct.

27

27

26

24

22

21

19

21

19

19

19

25

23

102

185

236

197

136

124

111

147

130

115

102

92

86

79

71

65

65

102

Nov.

132

264

249

210

222

480

408

408

325

264

236

197

162

185

185

173

162

136

147

147

145

1/10

140

140

173

197

Dec.

210

200

192

182

174

164

1.54

144

136

120

126

126

130

130

126

80

Jan.

115

Feb.

65

950

1,700

1,200

550

340

170

170

Mar.

80

" 6579

40

79

86

102

111

102

102

102

102

151

120

197

162

162

151

151

111

102

102

106

102

97

97

97

94

94

86

Apr.

79

79

86

79

65

94

151

210

162

143

113

113

113

120

170

731

578

426

341

341

309

278

249

999

210

210

185

173

140

136

May.

140

325

320

309

264

210

185

173

162

197

550

325

210

180

151

130

130

151

151

151

120

120

120

90

100

102

102

120

124

111

94

June.

85

124

134

94

94

83

72

69

65

65

82

66

52

80

151

120

99

86

65

50

41

36

36

36

36

29

58

53

July.

48

36

2927 '

25

28

25

18

11

9.5

7.5

6.0

4.5

5.0

5.4

4.5

3.5

2.5

2.3

2.2

2.1

2.0

1.9

1.8

1.7

1.6

1.6

1.6

1.6

1.6

1.5

Aug.

2.0

2.5

29

6.5

3.9

2.8

2.4

1.9

1.8

1.6

10

109

51

21

11

17

9.0

7.0

5.7

3.6

3.0

40

264

210

91

68

50

41

32

26

130

Sept.

151

162

102

72

64

57

47

42

79

151

185

114

102

210

197

1,700

2,910

2,020

1,520

1,340

1,180

1,030

730

520

414

356

303

254

239

196

NOTE . Stage-discharge relation affected by ice Dec. 16 to Feb. 14; gage not read; discharge ascertained by 

comparison with flow of Squaw Creek at Amea. Stage-discharge relation affected by backwater from 

forms for concrete control below gage, Aug. 30 to Sept. 15; discharge ascertained by applying to rating 

table mean daily gage height corrected for backwater by means of one discharge measurement (see under 

"Channel and control"). Staff gage not read Nov. 22, 23, 25, 26, 29, 30, Dee. 2-9, 11, Feb. 19 to Mar. 1, 

Apr. 14, 15, May 3, 11, 14, 25, June 6, 26, July 4, 12, 14, 16, 17, 19-22, 25, 27, 29, 30, Aug. 1, and 21; discharge 

ascertained by comparison with flow of Squaw Creek at Ames. Braced figures show mean discharge for 

periods indicated.

Monthly discharge of Skunk River near Ames, Iowa, for the year ending Sept.

SO, 1921.

[Drainage area, 320 square miles.]

Month.

October __ . ...

December. .. ...

March _ -... . .. ...... ...

May _ ..... .. ...

July. ... ...

Discharge in second-feet.

Maximum.

236 

480 

210

1,700

197 

731 

550 

151 

48 

264 

2,910

2,910

Minimum.

19 

132

40 

65 

90 

29 

1.5 

1.6 

42

1.5

Mean.

78.6 

218 

116 

115 

260 

108 

210 

181 

72.5 

10.3 

40.4 

548

161

Per square 

mile.

0.246 

.681 

.362 

.359 

.812 

.338 

.656 

.566 

.227 

.032 

.126 

1.71

.503

Run-off in 

inches.

0.28 

.76 

.42 

.41 

.85 

.39 

.73 

.65 

.25 

.04 

.15 

1.91

6.84
128 SITEFACE WATER SUPPLY, 19(21, PART V. 

SKUNK EIVER AT COPPOCK, IOWA.

LOCATION. In sec. 1, T. 73 N., R. 8 W., at highway bridge an eighth of a mile 

above Chicago, Burlington & Quincy Railroad bridge at Coppock, Henry 

County, and a quarter of a mile above junction with Crooked Creek.

DBAWAGE AREA. 2,890 square miles (measured on map issued by United States 

Geological Survey; scale, 1 to 500,QQO).

KECOJUJS AVAILABLE. October 21, 1913, to September 30, 1921.

GAGE. Chain gage attached to downstream side of bridge; read by J. W. Ricks.

DISCHARGE MEASUREMENTS. Made from bridge to- which gage is attached or-by 

wading.

CHANNEL AND CONTROL. Bed composed of gravel and sand; shifting.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 14.60 feet at 

9 a. m. September 27 (discharge, 11,000 second-feet); minimum discharge, 

168 second-feet August 1.

1913-^1921: Maximum stage recorded, 19.7 feet June 9, 1918 (discharge, 

19,600 second-feet); minimum stage, 2.10 feet August 15, 18, and 25-27, 

1914 (discharge, 33 second-feet).

A stage of about 22 feet (discharge, 25,000 second-feet) was reached on or 

about May 31, 1903.

ICE. Stage-discharge relation affected by ice.

ACCURACY. Sta,ge-discharge relation changed during winter and again during 

high water of May; affected by ice December 17 to February 12 and February 22 and 23, and by drift lodged against railroad bridge June 18-27. 

Three fairly well-defined rating curves used, applicable October 1 to February 17, February 18 to May 11, and May 12 to September 30. Gage read 

to hundredths once daily. Daily discharge ascertained by applying daily 

gage height to rating table except for period of ice effect and period of backwater from drift at railroad bridge, for which it was ascertained by means of 

gage heights and comparison with flow of this river at Augusta, Iowa. 

Open-water records good; winter records fair.

Discharge measurements of Skunk River at Coppock, Iowa, during the

Sept. SO, 1921.

[Made by C. Herlofson.]

Bar ending

Date.

Nov. 18. _. ______...__.--_. __.___....._..._.....-. 

Apr. 23.. -------------------._ .- ....... ......... ____ ......

July20_ _ _______ ........ . .._.___._. -..--. -

Gage 

height.

Feet. 

3.51

7.38

3.23

Discharge.

Sec.-ft. 

429

2,820

317
MISSISSIPPI BIVEE BASIN. 129

Daily discharge, in second-feet, of Skunk River at Coppock, Iowa, for the year ending Sept. SO, 1921.

Day.

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

2 _ .... __ ...

:& . ... .... ...

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

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

'6.... . _ ...

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

8........ _ ...

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

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

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

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

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

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

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

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

-17..... __ .....

18 

19- .... .... .

30 

a.. .......

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

23 

24 __ ......

25 .........

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

27 __ ......

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

29 -

30 

31 

Oct.

268

254

254

240

240

226 226'

213

213

213

201

201

201

189

201

189

189

178

201

343

410

376

343

343

359

343

327

312

297

282

282

Nov.

297

282

268

282

297

463

482

500

520

520

715

765

785

665

500

392

376

427

580

500

500

540

625

520

500

482

463

463

445

445

Dec.

463

463

500

520

520

580 '540

520

500

482

463

445

445

482

463

427

400

350

300

300

250

200

200

200

200

200

200

200

250

250

300

Jan.

350

350

400

400

400

450 ' 450'

450

450

450

500

500

500

500

500

i"tfi

400

400

400

400

400

400

dftft

400

400

Vfl

500

«¥»

500

500

450

Feb.

450

450

450

425

425

425 425'

375

425

350

300

300

359

376

410

625

815

1,460

1,580

1,580

1,160

850

700

890 041;

sun

74n

Ron

Mar.

645

645

600

560

520

520

560

560

560

540

540

540

560

645

945

1,160

945

840

840

740

740

645

fid*

645

ECA

560

520

520

520

501

JQO

Apr.

464

464

464

464

447

447

436

447

447

520

520

600

560

540

520

1,160

1,460

1,580

9 R4A

3,920

4,100

3,740

2,770

 O. Adfi

i ftih

1 Qftfl

9 «UA

n oqn

2,400

2,040

May.

1,720

2,120

2,180

2,470

2,470

2,320

2,120

1,780

1,650

1,780

5,480

4,240

3,360

2,720

2,120

i sun

1,580

1,390

1,330

1,210

1,090

1,090

Q7O

924

870

818

818

768

768

71Q

672

June.

818

1,270

1,040

1,270

1,090

979

870

768

719

672

672

768

818

768

627

1,150

1,210

7,480

7,480

2,960

1,390

768

1,150

924 870-

W)A

1,390

i ion

1,700

1,390

July.

1,150

979

979

924

924

1,700

1,040

672

584

503

465

429

395

378

346

484

362

330

330

314

284

255

241

234

228

215

215

91 *

215

203

101

Aug.

168

3,200

2,640

1,700

979

1.-090

979

979

719

465

378

378

378

503

584

<M19

314

284

255

284

362

378

1,040

543

870

iyu.

447

1Q*

378

330

284

Sept.

269

255

768

584

1,210

2,050

1,330

870

719

3,620

4,060

2,640

1,510

1,840

1,770

3,360

4,340

4,060

4,060

5,040

6,860

6,140

6,370

6,980

8,130

10,700

11,000

9,380

7,740

5,910

Monthly discharge of Skunk River at Coppock, Iowa, for the year ending Sept.

30, 1921.

[Drainage area, 2,890 square miles.]

Month.

October. _________ __________

February ___________________

AprU... .................. ...................

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

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

August ___________ . ..................

September _ ______ .. _________ ,.

Discharge in second-feet.

Maximum.

410 

765 

580 

500 

1,580 

1,160 

4,100 

5,480 

7,480 

1,700 

3,200 

11,000

11,000

Minimum.

178 268; 

200 

350 

300 

482 

430 

672 

627 

191 

168 

255

168

Mean.

262 

486 

375 

440 

672 

639 

1,500 

1,790 

1,510 

509 

718 

4,120

1,080

Per 

square 

mile.

0.091 

.168 

.130 

.152 

.233 

.221 

.519 

.619 

.522 

.176 

.248 

1.43

.374

Run-off 

in inches.

0.10 

.19 

.15 

.18 

.24 

.25 

.58 

.71 

.58 

.20 

.29 

1.60

5.07
130 SURFACE WATBB SUPPLY, 1921, PART V.

SKUNK RIVER AT AUGUSTA, IOWA.

LOCATION. In sec. 26, T. 69 N., R. 4 W., at highway bridge a third of a mile 

from Augusta post office, Des Moines County, and 12.2 miles above point 

where Skunk River empties into pond of Mississippi River Power Co., 32.2 

miles above dam at Keokuk, Iowa.

DRAINAGE AREA. At gaging station, 4,290 square miles; at mouth, 4,350 

square miles (measured on map issued by United States Geological Survey; 

scale, 1 to 500,000).

RECORDS AVAILABLE. Octdber 1 to November 15, 1913; May 27, 1915, to 

September 30, 1921.

GAGE. Chain gage attached to downstream handrail of bridge about 95 feet 

from left abutment; read by J. A. Schroder. Zero of chain gage 528.55 

feet above mean sea level, Memphis datum. Staff gage attached to downstream left side of middle pier, used by engineers of the Hydraulic Engineering 

Co. of Maine during 1913; taken out by ice in spring of 1914. Datum of 

staff gage approximately 0.73 foot higher than datum of chain gage.

DISCHARGE MEASUREMENTS. Made from bridge to which gage is attached or 

by wading.

CHANNEL AND CONTROL. Bed composed of sand; shifting. Right bank high 

and is not overflowed; left bank is overflowed at extremely high stages. 

Remains of old mill dam 600 feet below gage forms control; practically 

permanent. The fall over the dam is about 3 feet at medium low stages. 

Backwater from Mississippi River occurs once in about 50 years.

EXTREMES OP DISCHARGE. Maximum stage recorded during year, 10.95 feet at 

5.30 p. m. September 21 (discharge, 12,200 second-feet); minimum stage 

recorded, 1.52 feet October 14 and 19 (discharge, 73 second-feet).

1913; 1915-1921: Maximum discharge recorded, 30,800 second-feet 

March 28, 1916; minimum stage, 1.29 feet September 8, 1919 (discharge, 

26 second-feet, by current-meter measurement).

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

REGULATION. Natural discharge at Augusta occasionally affected at extreme 

low stages by storage of water at Oakland mills, 26 miles upstream.

ACCURACY. Stage-discharge relation permanent except as affected by ice 

November 17-19, December 17 to February 4, and February 23 and 24. 

Rating curve well defined throughout. Gage read to half-tenths once daily. 

Daily discharge ascertained by applying daily gage height to rating table 

except for periods during which stage-discharge relation was affected by 

ice for which it was ascertained by means of gage heights, observer's notes, 

and weather records. Open-water records excellent; winter records good.

Discharge measurements of Skunk River at Augusta, Iowa, during the year ending

Sept. SO, 1921.

[Made by C. Herlofson.]

Date.

Sept. 22 ____

Gage 

height.

Feet.

4.83

9.66

Discharge.

Sec.-ft. 

3,430

10,200

Date. height.

Feet. 

10.09

7.78

Discharge.

Sec.-ft. 

10,900

7,640

Date.

Nov. 17 ........

Gage 

height.

Feet. 

2.29

Discharge.

Sec.-ft. 

358
UPPEB MISSISSIPPI RIVEB BASIN.

Daily discharge, in second-feet, of-Skunk River at Augusta, Iowa, for the year

ending Sept 80, 1921.

Day.

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

2 ..

3 . _

4 _

6 .... _ ....

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

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

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

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

310

310

285

285

113

285

180

113

261

261

261

239

73

285

261

198

218

73

162

145

310

408

408

380

352

380

352

325

325

BOO

Nov.

325

352

300

275

252

300

325

352

620

538

575

665

812

865

665

575

380

408

380

575

575

500

468

575

575

500

500

500

468

468

Dec.

468

435

468

538

538

538

575

575

575

538

500

468

500

500

500

500

450

400

300

250

250

250

200

200

200

200

200

200

200

250

200

Jan.

300

600

600

550

500

450

400

400

400

450

450

400

350

350

350

350

350

350

400

450

450

450

500

500

500

500

500

600

500

500

450

Feb.

400

350

350

400

468

380

352

380

435

408

408

408

380

408

380

380

380

352

760

1,880

1,740

1,340

1,300

1,800

865

975

865

760

Mar.

712

665

620

538

575

620

812

1,340

1,270

975

812

812

812

920

865

1,340

1,400

1,270

1,210

1,090

1,030

920

812

712

760

712

712

665

575

575

575

Apr.

575

538

500

500

468

500

575

865

975

712

620

620

620

665

712

4,540

5,380

5,800

4,680

5,240

5,940

5,520

4,680

3,560

2,860

3,980

4,820

6,220

5,520

3,980

May.

3,000

3,420

4,400

4,120

3,840

3,280

2,720

2,720

2,440

2,160

3,280

7,760

5,660

5.240

3,700

2,860

2,440

2,160

1,880

1,740

1,600

1,470

1,400

1,270

1,090

1,090

1,030

1,030

1,030

975

920

June.

865

1,090

2,720

1,740

1,600

1.470

1,270

1,090

1,030

920

812

760

865

975

1,150

1,210

1,210

4,540

11,500

,9,300

4,400

2,440

2,160

1,740

1,600

1,740

1,740

2,020

2,160

2,300

July.

2,020

1,470

1,090

1,090

1,030

1,150

1,600

1,540

865

665

575

538

500

468

435

408

435

435

408

380

352

325

300

300

275

275

275

252

300

275

275

Aug.

252

468

4,540

3,420

2,440

1,640

1,210

1,210

1,210

975

712

538

712

3,280

1,740

975

712

468

380

352

352

325

310

1,210

665

760

575

500

435

408

352

Sept.

325

310

285

2,300

2,020

1,670

2,300

1,540

1,090

2,440

7,480

6,500

3,840

2,440

4,540

5,240

5,100

6,220 ft Vjin

6,080

10,300

10,800

8,880

7,760

8,180

9,300

10,700

11,300

10,300

8,460

Monthly discharge of Skunk River at Augusta, Iowa, for the year ending Sept.

SO, 192L

[Drainage area, 4,290 square miles.]

Month.

October. ___________________

April ________________ . ...........

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

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

September a

The year.. .... _______ .....

Discharge in second-feet.

Maximum.

408 

865 

575 

600 

1,880 

1,400 

6,220 

7,760 

11,500 

2,020 

4,540 

11,300

11,500

Minimum.

73 

252 

200 

300 

350 

538 

468 

920 

760 

252 

252 

285

73

Mean.

265 

489 

386 

448 

689 

861 

2,740 

2,640 

2,280 

655 

1,070 

5,430

1,490

Per

square 

mile.

0.062 

.114 

.090 

.104 

.161 

.201 

.639 

.615 

.531 

.153 

.249 

1.27

.347

Run-off 

in inches.

0.07 

.13 

.10 

.12 

.17 

.23 

.71 

.71 

.59 

.18 

.29 

1.42

4.72

81182 24t wsp 52E
132 SUEFACE WATER SUPPDY, 1921, PART V.

SQUAW CREEK AT AMES, IOWA,

LOCATION. In sec. 3, T. 83 N., R. 24 W., at footbridge 1,700 feet above Chicago

6 Northwestern Railway bridge in Ames, Story County, and 2 miles above

junction with Skunk River. 

DRAINAGE AREA. 210 square miles (measured on topographic map and United!

States post-route map).

RECORDS AVAILABLE. May 24, 1919, to September 30, 1921. 

GAGE. Vertical staff gage attached to middle pile of left bent of bridge; read by

E. D. Burchard. 

DISCHAEGE MEASUREMENTS. Made from Chicago & Northwestern Railroad

bridge at extreme high stages; at other stages from footbridge to which gage

is attached or by wading. 

CHANNEL AND CONTROL. Bed composed of sand and gravel; sand shifts during

high water. Left bank high; right bank subject to overflow at stages above

7 feet.

EXTREMES OP DISCHARGE. Maximum stage recorded during year, 7.35 feet at 

6.30 a. m. September 17 (measured discharge, 1,870 second-feet); minimum 

stage, 0.77 foot at 12.30 p. m. July 31 (discharge, 4.2 second-feet).

1919-1921: Maximum stage recorded, 8.51 feet at 7.20 p. m. October 4,. 

1919 (discharge, 2,210 second-feet); minimum discharge, no flow, August 26- 

to September 17, 1919.

Maximum stage in recent years, about 14.5 feet June 4, 1918 (discharge,, 

about 6,900 second-feet). The creek is practically dry for a short period 

nearly every summer.

ICE. Stage-discharge relation seriously affected by ice. '

ACCURACY. Stage-discharge relation changed during rise in early part of November; affected by ice December 16 to February 26. Rating curve well defined 

between 5 and 2,500 second-feet. Gage read to hundredths twice daily or 

oftener during high water. Daily discharge ascertained by applying mean 

daily gage height to rating table except for period during which stagedischarge relation was affected by ice, for which it was ascertained by mean* 

of twelve discharge measurements, gage heights,observer's notes, and weather 

records; shifting-control method used October 1 to November 7, in transition 

from curve used prior to October 1. Open-water records good; winter 

records fair.

Discharge measurements of Squaw Creek at Ames, Iowa, during the year ending

Sept. 30, 1921.

[Made by E. D. Burchard.]

- Date.

Dec. 11........

23 

28 .. 

Jan. 4... _ ..

12........

20., ..'.

26- __ ..

Feb. 4........

Gage 

height.

Feet. 

1.61

ol.71

1.79

«2.25

ol.94

a 2. 20

a 1.87

ol.95

Discharge.

Sec.-ft. 

69

43

27

75

42

64

39

43

Date.

Feb. 10 - 

14.. ......

16 

10

26- --

16. 

18 

Gage 

height.

Feet. 

o2.08

o4.85

o4.81

o2.38

01.86

3.45

2.60

Discharge.

Sec.-ft. 

37

493

742

140

73

35

430

195

Date.

May 17 

29 

July 26. __ ..

Aug. 31 ...

17 

Gage 

height.

Feet. 

1.71

1.16

3.97

.82

423

6.20

7.35

Discharge..

Sec.-ft. 

76

24

5015. a

550

1,280

1,870

o Stage-discharge relation affected by ice.
UPPEE MISSISSIPPI EWER BASI3ST.

Dailtf discharge; in second-feet, of Squaw Creek at Ames, Iowa, for the year 

: Sept. SO, 1921.

Day.

i...... .........

2 _____ .

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

4..,. ___ . _

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

6- __ ........

7 .-. .......

8

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

10 __ ... __ ..

11 . .... . .

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

IS..............

14. _ . ....

15 __ ..... .

'16 __ .....

17.-: 

18- ... ....

19 . .

20 .... _

21... ___ . _ .

22-. .....

23 ..

24.. . __

25 

26 . .

27

28 ... .

29 ....

30 .........

31 

Oct.

18

17

17

16

14

14

14

14

13

12

12

1417.

18

172

198

117.

103

96

96

90

72

60

54

48

45

40

36

35

32

35

Nov.

172

189

140

124

96

124

314

254

235

189

140

117

132

124

96

90

90

84

84

84

90

90

84

78

72

78

78

on

84

90

Dec.

96

90

90

84

78

72

66

72

63

60

60

59

58

-56

60

46

30

16

60

40

38

36

42

34

32

34

30

26

28

30

38

Jan.

46

60

65

75

110

130

110

95

75

80

55

40

42

46

50

46

40

36

44

60

80

80

65

55

46

38

55

55

55

55

38

Feb.

40

38

42

44

42

26

22

30

34

38

36

34

34

500

1,300

650

300

190

140

120

140

110

65

90

55

75

72

90

Mar.

84

8472'

72

78

78

84

84

72

78

78

72

78

117

132

117

11Q

96

96

90

72

66

65

72

65

72

65

66

64

55

Apr.

54

52

49

44

41

52

64

66

54

51

50

48

46

52

72

377

274

216

180

147

147

147

124

124

110

103

96

84

78

7<> '"

May.

78

216

198

155

132

117

110

96

90

96

314

189

132

110

90

84

78

84

78

72

69

66

54

50

59

54

53

84

64

59

50

June,

44

72

84

78

65

50

43

40

46

40

36

30

26

25

117

235

117

180

23&

103

84

54

56

47

41

35

59

60

254

398

July.

180

124

110

84

110

117

84

62

42

36

31

25

22

20

19

17

15

14

12

10

9.0

7.5

9.0

10

7.5

6.0

6.0

4.5

4.8

4.5

4.2

Aug.

13

132

60

34

21

18

14

12

9.5

12

55

24

16

12

ft 5

12

13

9.5

8.0

7.0

4.5

21

72

49

29

20

16

14

12

9.5

509

Sept.

198

226

163

124

96

84

65

6059-

180

254

15S

124

254

294

1,280

1,520

1,090

803

558

600

558

420

377

335

294

254

226

198

172

NOTE. Gage not read May 21 and Sept. 21; discharge estimated.

Monthly discharge of Squaw Creek at Ames, Iowa, for the year ending Sept. 30, 1921. 

[Drainage area, 210 square miles.]

Month.

December. __ ._ __

February

March ___ _ __

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

June .........

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

August

Discharge in second-feet.

Maximum.

198 

314 

96 

130 

1,300 

132 

377 

314 

398 

180 

509 

1,520

1,520

Minimum.

12 

72 

16 

36 

22 

51 

41 

50 

25 

4.2 

4.5 

59.

4.2

. Mean.

49.6 

124 

52.4 

62.2 

156 

80.2 

102 

103 

91.8 

38.9 

40.2 

368

104

Per 

square 

mile.

0.236 

.590 

.250 

.296 

.743 

.382 

.486 

.490 

.437 

.185 

.101 

1.75

.495

Run-off 

in inches.

0.27 

.66 

.29 

.34 

.77 

.44 

.54 

.56 

.49 

.21 

.22 

1.95

6.74

DBS MOINES RIVER AT EAIO, IOWA.

LOCATION. In sec. 17, T. 88 N., R. 28 W., at highway bridge in Kalo, Webster 

County, 1| miles east of Otho, a station on Minneapolis & St. Louis Railroad, 

and 1| miles above mouth of Holiday Creek, which enters from left.

DRAINAGE AREA. 4,170 square miles (measured on map issued by United States 

Geological Survey; scale, 1 to 500,000).

RECORDS AVAILABLE. October 18, 1913, to September 30, 1921.

GAGE. Chain gage attached to downstream side of bridge in middle of right 

span; read by S. C. Fuller.

DISCHARGE MEASUREMENTS. Made from bridge to which gage is attached or by 

wading.
134 SUBFACE WATER SUPPLY, 1921, PART V.

CHANNEL AND CONTROL. Bed composed of gravel; practically permanent 

Control not well defined. Point of zero flow estimated to be at gage height 

about ^-0.5 foot.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 7.2 feet at 7.30 

a. m. May 28 (discharge, 6,600 second-feet); minimum stage recorded, 0.26 

foot at 7.30 a. m. August 20 (discharge, 57 second-feet).

1913-1921: Maximum stage recorded, 14.0 feet May 30, 1915 (discharge, 

18,500 second-feet); minimum discharge, estimated 28 second-feet January 

22, 1920 (stage-discharge relation affected by ice).

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

REGULATION. Operation of city power plant at Fort Dodge, about 7 miles upstream, causes diurnal fluctuation during low water.

ACCURACY. Stage-discharge relation permanent except as affected by iceRating curve well defined above 400 second-feet; below that point somewhat uncertain. Gage read to hundredths once daily except as noted in 

xootnote to daily-discharge table. Daily discharge ascertained by applying 

daily gage height to rating table except for period of ice effect and days when 

gage was not read, for which it was ascertained as indicated in footnote to 

daily-discharge table. Open-water records excellent except those for low 

stages which are subject to error on account of diurnal fluctuation and 

uncertainty in rating curve; winter records fair.

Discharge measurements of Des Moines River at Kalo, Iowa, during the year ending

Sept. 30, 1921. 

[Made by E. D. Burchard.]

Date.

Oct. 29... -.-. -.-..-.-.-.--._._._._..__.___._-.._..-.-. _..-. -_._..-.--..

Apr. 28...---.----...-..-.-.-.-.,.......-...... _ _-.__.,..-._--.__--_----_..--_----.

Gage 

height.

Feel. 

1.32

1.86

Discharge.

Sec.-ft. 

452

792

Daily discharge, in second-feet, of Des Moines River at Kalo, Iowa, for the year 

ending Sept. 30, 1921.

Day.

1 . .

2

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

4........ --

5.............1

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

7.

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

9____ _______...

10... . .....

11-

12..... . .

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

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

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

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

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

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

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

20. .. .

21.. . .

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

23... ... .

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

25..... _...__._.

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

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

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

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

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

31. .......

Oct. Nov.

1,070 i 700

910 ; 1,230

750 1, 390

595 1, 570

530 1, 660

530 1, 660

470 1, 900

440 2, 200

470 2, 480

410 2, 480

415 1, 930

365 1, 600

665 1, 480

665 1, 310

640 1, 480

665 1, 660

770 1, 390

665 1, 390

595 1, 250

530 1, 150

470 1, 230

520 1, 230

560 1, 150

470 1, 150

500 1,230

440 1, 390

440 1,070

580 .......

Dec.

1,310

1,570

1,570

1,660

1,600

1,570

1,390

1,230

1,230

1,070

1 1 C A

1,150

i i ^n

1,070

1,070

990

560

Jan.

.

940

Feb.

4,500

5,460

3,080

3,180

9 ftf^fi

2,480

1,750

1,230

1 ^QO

i ^iQft

Mar.

1,390

1,310

1,230

1,150

1,230

1,250

1,310

1,390

1,230

1,230

1,230

1 1 fUl

1 1 EA

1,230

1 236

1,150

1,070

1,070

1,070

i i *n

1,150

1,230

1 7W1

2,110

2,110

2,110

2,110

2,020

9 fi9fl

2.020

Apr.

1,840

1,660

1,550

1,570

1,570

1,570

1,570

1,480

1,750

1,700

1,660

1 660

1 7*ift

1,570

1,480

1,480

1,450

1,390

1,230

1 93O

1 480

1^480

1,310

1,350

1 480

1,230

1,230

1 9^fl

990

910

May.

1,050

1,310

1,750

2,480

2,020

1,930

1,750

1,700

1,660

1,230

1,750

1,660

1,480

1 ^fl

1,310

1,230

1,310

2,880

3,810

3,500

2,680

3,380

6,450

6,600

6,500

6,160

5,880

June.

5,460

5,040

4,640

4,140

4,000

3,700

3,280

3,180

2,880

2,780

9 7^n

2,780

2,780

9 sstn

3,380

o 400

3,480

3,200

2,880

2,200

1,840

1,750

1,700

1,750

1,930

2,200

July.

1,750

1,390

1,.250

1,230

1,750

1,840

1,750

1,750

1,660

1,400

1,150

Q1 A

840

770

840

530

530

530

500

320

320

390

470

288

320

288

288

280

Aug.

320

284

264

264

340

252

240

244

220

284

220

224

300

280

264

264

470

224

284

ocn

380

530

470

365

365

284

260

99J.

595

665

Sept.

470

220

320

300

280

240

280

230

280

320

300

91 ft

2df»

390

KOf\

3,380

2,680

2,( 750

2,880

3,080

2,680

2,780

2,290

2,200

2 100

2,110

2,110

2,020

1,930

1 R4fl

NOTE. Stage-discharge relation affected by ice Dec. 19 to Feb. 16; gage read only Dec. 20-23 and 27-31; 

discharge ascertained by means of weather records and by comparison with flow of this river near Boone, 

Iowa. Gage not read on Sundays; discharge estimated by comparison with flow at gaging station near 

Bcone. Discharge also estimated by comp rison with flow near Boone, on account of great diurnal fluctuation, Aug. 9,11, 20, Sept. 5,6,8, and 12. Braced figures show mean discharge for periods indicated.
'tJPPER MISSISSIPPI RIVER BASIH. 135

Monthly discharge of Des Moines River at Kalo, Iowa, for the year ending Sept,

SO, 1921.

[Drainage area, 4,170 square miles.]

Month.

December. __________________

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

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

June ______________________

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

September ________ _ ________

Discharge in second-feet.

Maximum.

1,070 

2,480

5,460 

2,110 

1,840 

6,600 

5,460 

1,840 

665 

3,380

6,600

Minimum.

340 

700

1,070 

910 

1,050 

1,390 

280 

220 

210

210

Mean.

560 

1,520 

984 

940 

1,690 

1,440 

1,460 

2,780 

2,950 

852 

325 

1,380

1,400

Per

square 

mile.

0.134 

.365 

.236 

.225 

.405 

.345 

.350 

.667 

.707 

.204 

.OTS 

.331

.336

Run-off 

in inches.

0.15 

.41 

.27 

.26 

.42 

.40 

.39 

.77 

.79 

.24 

.09 

.37

4.56

DES MOINES RIVER NEAR BOONE, IOWA.

LOCATION. In sec. 12, T. 84 N., R. 27 W., at highway bridge in Centerville 

2| miles northwest of Boone, Boone County, 1 mile above Boone waterworks, and 3 miles above Bluff Creek, which enters from right.

DBAINAGB ABBA. 5,480 square miles (measured on map issued by United States 

Geological Survey; scale, 1 to 500,000).

RECORDS AVAILABLE. April 1, 1920, to September 30, 1921. Scattered record 

of stage were obtained by United States Weather Bureau at gage 3J miles 

downstream at Chicago & Northwestern Railroad crossing, during period 

1905 to 1917.

GAGE. Chain gage attached to downstream side of bridge, 20 feet from left end 

of right span; read by S. A. Elliott.

DISCHARGE MEASUREMENTS. Made from bridge to which gage is attached or by 

wading.

CHANNEL AND CONTROL. Bed composed of gravel and sand; practically permanent. Control is remains of old dam, 300 feet below bridge; well defined and 

practically permanent.

EXTREMES OP DISCHARGE. Maximum stage recorded during year, 9.3 feet at 

7 a. m. May 30 (discharge, 10,400 second-feet); minimum stage, 1.80 feet 

at 7 a. m. August 7 (discharge, 265 second-feet).

1920-21: Maximum stage recorded, 13.39 feet at 6.30 a. m-. July 11, 1920 

(discharge, 16,900 second-feet); minimum stage same as for 1921.

ICE. Stage-discharge relation affected by ice during periods of extremely cold 

weather.

REGULATION. The city power plant at Fort Dodge, about 40 miles upstream, 

causes some diurnal fluctuation during extremely low water.

ACCURACY. Stage-discharge relation permanent except as affected by ice December 19 to January 5 and February 6-9. Rating curve well defined between 

250 and 18,000 second-feet. Gage read to hundreths once daily or oftener 

during days of rapidly changing stage except as noted in footnote to daily 

discharge table. Daily discharge ascertained by applying daily gage height 

to rating table except for periods during which stage-discharge relation was 

affected by ice for which it was ascertained by means of occasional gage readirgs and weather records. Open-water records excellent; winter records fair.
SURFACE WATER SUPPLY, 1921, PABT V.

Discharge measurements of Des Moines River near Boone, Iowa, during the year

ending Sept. 30, 1921,

[Made by E. D. Burchard.]

Date.

QfltSL.. 

13 _ ....

Gage 

height.

Feet. 

2.90

2.61

Discharge.

Sec.-ft. 

1,160

869

Date.

Apr. 15..- 

May 20- ..

Gage 

height.

Feet. 

3.43

5.77

Discharge.

Sec.-ft. 

1,950

5,320

Date.

July 31 ___ ...

h»t.

Feet.

1 O9

Discharge.

Sec.-ft.

Daily discharge, in second-feet, of Des Moines River near Boone, Iowa, for the year

ending Sept. 30, 1921.

Day.

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

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

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

4-... .- .

5 -- ..... .

«-_. .. -_

7.

8-. .........

9,. ............

10 

11- 

12 

13 

14. ............

 15 

16 

17- 

18 

19

20-..... . 

21., .

22 

23 

24 

25 - 

26 

27 

28 

29 

30 

31 

Oct.

950

1,000

1,000

1,000

755

580

622

665

710

710

665

622

622

622

1,060

950

1,060

1,310

1,060

1,000

900

1,060

1,060

1,000

1,000

950

850

665

665

665

1,060

Nov.

1,120

2,160

2,600

2,740

2, /40

2,600

2,890

4,200

4,480

4,780

4,480

4,200

3,470

3,180

3,040

2,740

2,460

2,160

2 160

1,880

2,020

2,160

2,020

2,020

2,020

1,880

1,880

1,730

1,880

2,020

Dec.

2,460

2,600

2,460

2,460

9 4AA

2,310

2, 160

2,020

1,880 i m\

1,730

1,730

1,660

1 *\Qft

1,590

1,520

930

Jan.

1 

' 000

1,240

1,240

1,520

1,520

1,450

1,380

1,240

1 000

1,000

1,000

1,000

1 060

1,180

1,240

1,880

2,600

2,740

2,600

3,040

2,310

1,590

1,730

1,660

1,240

Feb.

1,240

1,450

1,380

1,240

oftft

1

875

950

950

950

850

1,180

1,310

9,120

10,100

6,800

4,200

4,200

3,900

2,740

2,160

2,160

2,020

1,880

1,730

Mar.

1,730

1,730

1,880

1,730

1 660

1,660

1,660

1,590

1,520

1,520

1,450

1,520

1.590

1,520

1,520

1,520

1,520

1,590

1,730

1,660

1,660

1,660

1,660

1,880

2,740

3,180

3,040

2,890

Apr.

2,600

2,310

2,310

2,160

2,020

2,020

2,020

2,020

2,020

9 ififl

2,310

2,160

2,020

2,020

1,880

2,020

2,. 460

2,310

2,020

1,880

1,880

2,310

2,310

2,160

2,160

1,880

1,880

1,660

1,450

May.

1,380

2,020

2,310

3,040

3,760

3,040

2,740

2,460

2,160

2,160

2,020

2,160

2,310

2,310

2,020

1,880

1,730

1,880

1,730

4,200

5,940

5,640

5,060

4,340

3,320

4,340

5,640

9,270

10,000

10,400

10, 100'

June.

9,270

8,260

7,530

6,800

5,500

5,060

4,630

4,200

3,900

3,760

3,760

3,620

3,620

4,780

3,900

4,480

4,630

4,340

3,900

3,320

3,040

2,600

2,160

2,020

1,880

1,880

1,880

2,740

2,600

July.

2,740

2,160

1 660

1,450

1,450

2,020

2,160

1,730 9 ifift

],730

1,310

1,000

1,000

900

900

755

710

710

665

580

500

500

486

417

417

365

404

354

500

338

Aug.

365

665

500

444

404

384

321

QflK

580

500

444

444

417

404

417

410

391

444

332

710

1,240

802

540

500

500

391

365.

365

665

Septi

1,080

1,000

622

KA(\

494.

384

«MQ

360

4f-^

flOO

580

500

470

540

1,060

6,080

7,380

5,640

5,640-

5,640

4,920

4,200

3,470

3,320

2,890

3,900

3,320

2,740

2,460

NOTE. Gage not read during period of ice effect Dec. 19 to Jan. 5, except on Dec. 20 and 31 and Jan. 2 and 

4; discharge ascertained as explained under "Accuracy" in station description. Gage not read Octobei 

3 and 13, discharge interpolated. Braced figures show estimated mean discharge for periods indicated.

Monthly discharge of Des Moines River near Boone, Iowa, for the year ending

Sept. 30, 1921. 

[Drainage area, 5,480 square miles.]

Month. (

April 

July 

Discharge in second-feet.

Maximum.

1,310

4,780 

2,600 

3,040 

10,100 

3,180 

2,600 

10,400 

9,270 

2,740 

1,240 

7,380

10,4CO

Minimum.

580 

 1,120

850 

1,450 

1,450 

1,380 

1,880 

338 

265 

348

Mean.

866 

2,660 

1,500 

1,480 

2,590 

1,800 

2,100 

3,910 

4,220 

1,080 

492 

2,550

265 | 2,090

Per square 

mile.

0.158 

.486 

.274 

.270 

.473 

.328 

.383 

.714 

.770 

.197 

.090 

.465

.381

Run-off 

in inches

a is

.54 

.32 

.31 

.49 

.38 

.43 

.82 

.86 

.23 

.10 

.52

5.18
TJPPEB MISSISSIPPI EIVBB BASIN. ~ 187

DES MOIRES RIVER HEAR TRACT, IOWA.

LOCATION. In sec. 19, T. 75 N., R. 17 W., in Mahaska County, at highway 

bridge in Belief ontaine, near Tracy, Marion County, 3 miles above 

of Cedar Creek, and 6 miles below mouth of English Creek, both of 

enter from right.

DRAINAGE AREA. 12,400 square miles (measured on map issued by United 

States Geological Survey; scale, 1 to 500,000).

RECORDS AVAILABLE. March 1, 1920, to September 30, 1921, From about 

April 22 to December 31, 1910, the United States Engineer Corps obtained 

daily readings at the same site.

<*AGE. Chain gage attached to downstream side of bridge near right end of 

second span from right end of bridge; read by D. M. Coleman. Sea-level 

elevation of zero of gage, 671.78 feet.

DISCHARGE MEASUREMENTS. Made from bridge to which gage is attached or 

by wading.

CHANNEL AND CONTROL. Bed composed of solid rock overlain in places with 

sand and gravel. Right bank high; left bank subject to overflow at high 

stages. Low-water control well defined; practically permanent.

EXTREMES OP DISCHARGE. Maximum stage recorded during year, 13.3 feet-at 

7 a. m. September 17 (discharge, 26,900 second-feet); minimum stage, 3.00 

feet at 7 a. m. July 31 and August 1 (discharge, 1,180 second-feet).

1920-21: Maximum stage recorded, 14.74 feet at 7 p. m. May 14, 1920 

(discharge, 31,900 second-feet); minimum discharge, estimated 750 secondfeet March 1, 1920 (stage-discharge relation affected by ice).

Maximum stage since 1850 about 25 feet May 31, 1903 (discharge, estimated 100,000 second-feet).

ICE. Stage-discharge relation affected by ice during periods of extremely cold 

weather.

ACCURACY. Stage-discharge relation practically permanent except as affected 

by ice December 23 to February 13. Rating curve well defined between 

1)000 and 25,000 second-feet; extended beyond these limits and may be in 

efror. Gage read to hundredths twice daily except during period January 

16-31 when observations were discontinued. Daily discharge ascertained 

by applying mean daily gage height to rating table except for period during 

which stage-discharge relation was affected by ice for which it was ascertained by means of gage heights, weather records, and comparison with 

flow of Raccoon River at Van Meter, Iowa, and of Des Moines River at 

Des Moines, Iowa. Open-water records excellent; Winter records fair.

Discharge measurements of Des Moines River near Tracy, Iowa, during the year

ending Sept. 30, 1921.

[Made by E. D. Burchard.]

Date.

Oct. 7 - _-_ . .- . ..

tA&y 6...... .........................................................................

Gage 

height.

Feet. 

3.53

5.99

Discharge.

Sec.-ft. 

1,760

5,790
138

Daily di

SUBFAGB WATER STIFFLY, 1921, PABT V.

e, in second-feet, of Des Moines River near Tracy, Iowa, for the year 

ending Sept. 30, 1921.

Day.

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 

27 

28 

29 

SO -

SI 

Oct.

2,140

2,010

2,010

1,890

1,780

1,780

1,670

1,670

1,670

1,560

1,560

1,460

1,460

1,460

1,460

1,560

1,560

1,780

2,010

2,010

2,010

1,890

1,780

1,780

1,670

1,670

1,670

1,560

1,560

1,560

1,560

Nov.

1,460

1,560

1,670

2,010

2,700

3,490

3,840

3,840

4,020

4,950

5,720

5,920

5,720

5,140

4,380

4,020

3,660

3,490

3,320

3,490

3,490

3,490

3,660

3,160

3,160

3,000

3,000

2,850

3,000

3,000

Dec.

3,000

3,160

3,320

3,490

3,660

3,840

3,660

3,490

3,320

3,320

3,160

3,000

3,000

3,000

2,850

2,850

2,700

2,270

2,010

1,780

1,460

1,270

1,400

Jan.

 2,200

Feb.

2,000

3,350

3,350

4,000

8,210

14,200

15,700

11,900

10,500

8,340

7,650

6,760

6,120

5,140

4,760

4,380

Mar.

4,200

4,020

3,840

3,840

3,660

3,660

3,490

3,490

3,490

3,320

3,320

3,320

3,320

3,490

3,660

3,840

3,490

3,490

3,320

3,160

3,160

3,000

3,000

3,000

3,000

3,000

3,000

3,000

3,000

3,000

3,000

Apr.

4,380

4,380

4,200

3,840

3,490

3,490

3,490

3,490

3,320

3,160

3,160

3,490

3,490

3,490

3,160

3,840

5,140

6,980

11,400

13,300

10,500

7,880

5,720

5,140

5,140

5,140

5,140

4,950

4,570

4,200

May.

4,200

6,540

9,040

7,420

5,720

6,720

5,920

5,330

5,140

5,520

7,880

7,200

5,920

5,330

4,950

4,950

4,570

4,200

4,020

3,840

4,020

6,120

7,880

7,650

6,760

6,120

5,720

6,120

7,880

11,600

14,200

June.

14,800

18,000

18,600

16,700

13,900

11,100

9,760

8,570

7,880

7,420

7,650

7,200

6,540

6,980

6,980

6,980

6,980

6,330

6,330

6,120

6,120

5,520

4,950

4,570

4,760

4,200

4,380

4,380

4,200

5,140

July.

7,200

5,920

4,760

4,200

3,320

3,320

3,320

3,490

3,320

3,000

3,000

2,850

2,550

2,410

2,270

2,270

2,270

2,140

2,010

1,780

1,670

1,560

1,560

1,560

1,560

1,460

1,360

1,360

1,360

1,270

1,180

Aug.

1,180

2,140

3,490

3,660

2,850

2,550

2,270

1,780

1,560

1,670

1,360

1,460

2,010

1,890

1,780

1,670

1,460

1,460

1,270

2,410

2,410

1,890

1,670

1,360

1,360

1,560

1,560

1,460

1,270

1,270

1,270

Sept.

1,360

2,010

2,700

3,490

2,560

1,890

1,670

1,460

1,360

4,380

7,650

6,980

6,720

4,200

8,800

24,200

26,500

23,100

19,900

23,500

22,800

20,200

16,700

13,000

11,100

9,040

7,880

7,200

6,54O

6,120

NOTE. Braced figures show mean discharge for periods indicated.

Monthly discharge of Des Moines River near Tracy, Iowa, for the year ending

Sept. 30, 1921.

[Drainage area, 12,400 square miles.]

Month.

April 

July 

Discharge in second-feet.

Maximum.

2,140 

5,920 

3,840

15,700

4,200 

13,300 

14,200 

18,600 

7,200 

3,660 

26,500

26,500

Minimiim1,460 

1,460

3,000 

3,160 

3,840 

4,200 

1,180 

1,180 

1,360

Mean.

1,720 

3,540 

2,460 

2,200 

5,010 

3,370 

5,100 

6,370 

8,100 

2,620 

1,840 

9,800

4,310

Per 

square 

mile.

0.139

.285 

.198 

.177 

.404 

.272 

.411 

.514 

.653 

.211 

.148 

.790

.348

Run-off 

in inches.

0.16 

.32 

.23 

.20 

.42 

.31 

.46 

.59 

.73 

.24 

.17 

.88

4.71

DES MOINES RIVER AT OTTUMWA, IOWA.

LOCATION. At Market Street Bridge, Ottumwa, Wapello County. No large

tributary within several miles up or down stream. 

DRAINAGE AREA. 13,200 square miles (measured on map issued by United States

Geological Survey; scale, 1 to 500,000). 

RECORDS AVAILABLE. March 28, 1917, to September 30, 1921. Fragmentary

high-water observations were obtained from 1902 to 1916.
UPPER MISSISSIPPI RIVER BASIN.

GAGE. Chain gage attached to downstream handrail of bridge; read by Heriry 

EUers. Staff gage painted on northeast face of north pier used prior to August 

2, 1917.

DISCHARGE MEASUREMENTS. Made from Vine Street Bridge, about 1,500 feet 

below gage, or by wading.

CHANNEL AND CONTROL. Channel forms control; practically permanent.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 11.3 feet 

September 17 (discharge, 31,200 second-feet); minimum discharge, estimated 

about 700 second-feet during last week of December (stage-discharge relation affected by ice).

1917-1921: Maximum stage recorded, 16.5 feet June 11, 1917 (discharge, 

60,000 second-feet); minimum stage, 1.2 feet, to surface of ice, on several 

days during December, 1917 (discharge probably less than 350 second-feet). 

Maximum discharge since 1850 and probably in the last century occurred 

May 31, 1903, and exceeded 100,000 second-feet.

ICE. Stage-discharge relation affected by ice during extremely cold weather; 

observations are discontinued when serious ice conditions prevail.

REGULATION. Operation of power plant a short distance above gage probably 

causes some diurnal fluctuation at low stages.

ACCURACY. Stage-discharge relation changed during winter of 1919-20; affected 

by ice as noted in footnote to table of daily discharge. Rating curve used 

March 28, 1917, to December 2, 1919, well defined above 500 second-feet; 

curve used March 13, 1920, to September 30, 1921, well defined between 

1,500 and 35,000 second-feet and fairly well defined outside those limits. 

Gage read to tenths once daily except during periods noted in footnote to 

table of daily discharge. Daily discharge ascertained by applying daily 

gage height to rating table except as noted in footnote to table of daily 

discharge. Open-water records good except those for extremely low stages, 

which are subject to error; winter records fair to poor.

COOPERATION. Gage-height record furnished by United States Weather 

Bureau.

Discharge measurements of Des Moines River at Ottumwa, Iowa, during the year

ending Sept. 30, 1921.

[Made by E. D. Burchard.]

Date.

May6 __________ ... . _______________ .. __________ -.

Sept. 21 __________ . __ ........... __ ......................................

Gage 

height.

Feet. 

4.43

9.61

Discharge.

Sec.-ft. 

6,890

24,500

Daily discharge, in second-feet, of Des Moines River at Ottumwa, Iowa, for the years 

ending Sept. 30, 1917-1921.

Day

1917 

1. .....

2......

3......

4......

5. ...

6. ...

7......

8 __ ..

9 _ ...

10......

11- 

12... ...

13......

14 ......

15 ......

Mar. Apr.

18.40C

14,1(X

12, lOf

10, 90C

10, 600

9,93C

8,430

8,430

8,430

8,430

8, 130

8,130

7,840

7,840

7,840

May.

15,90(

15,50(

12, 10(

15,90(

18.40C

15,50C

16.20C

13,50G

11,200

9,330

9,030

8,430

8,130

7,840

7,550

June.

6.68C

12, 10(

20.60C

18, 80C

27,70C

31,700

39, 500

42,300

42,900

56,600

60,000

53,800

58,000

53,800

47,200

Aug.

2,06C

2,060

1.90C

1,900

1,600

1,600

1,600

1,460

1,460

1,460

1,460

1,330

1,330

1,330

1,330

Sept.

845

735

735

735

735

2,720

7,550

6,970

4,340

2,380

1,750

1,600

1,600

1,600

1,460

Day.

1917. 

16......

17......

18......

19 ...

20- ....

21 __ ..

22 .....

23......

24 .....

25--..__

26 ...

27.... ..

28 ...

29 ...

30 

31 ......

Mar.

24,500

25,300

22,100

Apr.

7,840

7,840

7,550

7,260

«,970

6,970

6,680

6,680

7,260

7,550

7,260

7,260

7,260

7,5£0

9,930

May.

7,260

6,970

6,680

6,400

6,120

5,850

6,400

6,680

6,120

6,680

6,970

6,970

6,680

6,680

6,680

6,680

June.

40,600

35, 200

19,100

18,400

14,100

12,800

11,500

10,200

9,330

8,430

7,840

7,260

9,030

8,430

8,430

Aug.

1,330

1,330

1,200

960

960

960

960

960

960

960

960

845

845

845

845

845

Sept.

1,330

1,330

1,330

1,200

1,200

960

960

735

735

625

625

625

625

625

625
140 SUEFACE WATEE SUPPLY, 1921, PAET V.

Daily discharge, in second-feet, of Des Moines River at Ottumwa, Iowa, for the 

years ending Sept. 30, 1917-1921 Continued.

Day.

1917-18.

I . ...

2 ___ .

3 ....

4 ___ .

5.......

6 . 

7. ......

8.. ..

9.......

10.......

11-. .

12.......

13- .-

14. _ ...

15.. 

18 

17 

18 

19 

20... 

21 __ ...

22.......

23 

24. .

25. ..

26 

27. __ ..

28 

29 

30 .

31 

1918-19. 

1 __ ..

2... ....

3 

4 

5 

6 ..

7 .

8 ...

9... 

10 

11 .

12 _ ....

13 

14 .

15 

16 

17 

18 

19.......

20. ...

21. ___

22. .

23 

24 

25 

26 .

27... ....

28 

29 

30 

31 __ ...

Oct.

625

625

525

525

525

435

525

525

435

525

525

435

435

435

435

435

435

435

525

525

435

525

525

435

525

625

525

625

625

525

625

845

735

735

735

735

625

525

525

625

625

625

625

625

625

625

625

«Oe

TOc

735

735

625

625

1,900

1,460

1,460

2.060

Nov.

625

625

435

525

525

435

525

525

435

525

525

435

525

525

435

525

525

435

525

525

435

525

525

435

525

525

435

525

435

435

2,060

2,060

2,720

3,090

2,900

2,900

2,720

2,720

2,550

2,550

2,220

2,060

9 ftfift

2,060

2,060

2,060

2,380

2,380

2,060

2,060

2,220

2,380

2,380

2,380

2,550

3,090

2,060

Dec.

1,900

2,220

2,060

1,900

1,900

2,060

2,220

2,060

2,060

2,060

2,060

2,220

2 99ft

2,220

2,380

2,380

S fton

3,090

3,280 ! 3,280

3

OQft

3,280

2,900

9 onn

2,900

1,500

Jan.

1,000

1,600

>3,950

2,380

2,550

9 ^ft

2,550

2,550

2,550

2.550

Feb.

5,850

8,130

7,550

6,680

3,690

2,220

2,550

1,750

1 ' 600

2,550

2,220

9 99ft

2,060

1,150

2,220

3,480

3,480

3,690

o Oftn

q Qftft

5,320

6 400

6,970

6,120

5 con

5,320

5,060

3,690

2,000

Mar.

2,220

9 ^ftft

3,900

3,900

a

AQf)

4,120

4,120

3,090

2,720

2,720

2,720

2,220

1,900

2,220

2,220

9 ftfift

9 ftfift

2,220

2,220

1 Qftft

9 ft&n

2,220

2,720

3,090

S

oon

3,280

2,550

9 ^Sft

2,450

4,120

$120

7 840

6 680

6,680

31,700

OQ onn

09 onn

32 500

IQ orm

16,200

1A CrtA

1°. ^iftft

12,100

11,200

10,600

10,200

10,200

9,630

9.330

Apr.

1,750

1,750

1,750

1,460

1,460

1,460

1,460

1,330

1,330

1,460

1,330

1,200

1,200

1,080

1,080

1 080

1,080

1,080

1,080

i nsn

1,080

1,200

1,200

1,200

1,200

1 (ISA

1,080

1 ftfift

1,080

9 ^sn

8,730

fi 43ft

8

1OA

7 840

7 260

6,680

7

CCf|

7 840

10 cnn

17,700

99 Vlft

1 Q ftftn

20,200

99 IftA

22,100

IQ vyi

10 QAft

10 CAA

18,400

23,300

27,700

9Q 7Aft

°.9 Qftft

on QAA

19,500

18,400

19. 4ftft

May.

1,080

QflA

960

845

845

845

845

736

735

735

735

735

625

625

625

845

2,720

2,720

1,750

i °.°.ft

2 99ft

2,720

3 OCA

7 840

6,400

fi XAA

14 800

13,600

9

QOA

18 400

20,200

21 800

30 900

36,200

00 Af\f\

AA 7ftft

40 600

24 500

IQ Qftft

ift ftftft

16,600

14,800

1 °. vyi

19 Iftft

11,200

10,200

S

oon

0 AOA

8,430

8

A**C\

8,430

7 Ecn

6 970

6,400

6,120

5,580

5,320

5,060

4,810

4.810

June.

9,330

11,200

12,100

14,100

19,100

22,900

27,300

28,900

34,700

42,900

41,200

38,400

28,900

23,700

15,200

12,800

9 nan

7,260

6 400

5,580

4,810

3,900

S

fion

16,900

QO 1AA

19 sjftft

7,260

c QO A

3 Qftft

S

OQft

4 340

1 1 sftft

23,300

97 Vlft

OA OAA

qo iftft

07 Qrtn

01 OAA

91 ftftft

18,000

25,700

IQ Ann

16,600

IQ **ftft

i Q soft

17,300

1 7 3ftft

19 500

IQ AAA

1ft Aflft

IQ onn

20,200

IQ QAfl

17 ^ftft

16,600

16,600

15 900

15,600

JMy.

2,280

H7S)

2,220

2,220

2,380

2,380

2,220

3,030

2,060

2,060

2,060

2,060

2,380

2,220

2,220

2

ACA

1,750

1 600

1,750

1,750

1 600

1 600

1 330

1,330

i °.°.ft

i °.3ft

1,200

1,200

1 200

1,080

15,200

19 f^ftft

10 600

9

00A

n

O/in

S T^ft

7,550

5,320

S

oon

11,200

8,130

ft T^ft

7,550

Q 7on

7

ecn

ft 4ftft

4,810

A O4A

4.340

4 340

°. Qftft

3 480

3

AQf\

3,090

S ftQft

9 79ft

2 79ft

2,720

2.720

Aug.

1,080

1,080

1,080

1,330

1,200

1,200

1,200

1,200

1,080

1,080

1,080

960

960

845

845

845

960

1,080

1,330

1,750

2,550

1,900

2,550

3,280

2,220

2,550

2,550

2,550

2,720

2,900

2,900

3,090

3,090

3,090

2,720

2,720

2,380

4,340

2,720

9 ^fcft

i 7f*n

1,750

1 71ft

2. 060

1,750

9 ftfift

2,060

9 flfirt

1 7^

1,750

1 7*tf»

1 460

1 460

1 4fifl

1,200

1,460

1,460

1 460

1,200

1,200

1,200

1.200

Sept.

2,720

o GAn

4,120

2,900

9 °.ftn

1,750

1,600

1 600

1 460

1,460

1,200

1,200

1,200

1,200

1 ASIA

i ftftft

Qyie

OyjC

nan

960

QfiA

960

845

Qyie

OAK

845

75C

7QK

735

Qfifi

960

7^^

960

Qfin

Aitn

QOA

QAn

960

70 e

7QC

7qe

70 K

735

525

KOK

525

KOK

2,060

1,750

d ^At\

8,970

e ^t9ft

4 340

3

ftfV\

2,06D

1 7WI

2,380

2,380

O Qftft
UPPER MISSISSIPPI SIVEE BASIK,. 141

discharge* in see0nd,-feefr, of Des M&ines River at Ottumwa,Iowa; for--Me 

-years ending Sept. SO, 1917-1921 Continued.

Day.

1919-20. 

1 .

2.......

3 ....

4.......

5 

6 

7.......

8.... ...

9.......

10.......

11 

12.......

13.......

14.......

15 ....

16.......

17.......

18.......

19.......

20.......

21......

22.......

23.......

24.-. ..

25 ....

26. 

27 ..

28.......

29 

30 ..

31 

1920-21. 

1 ....

2 

3 

4.......

5.._ _

6.......

7

8.......

9.......

10 

11 

12.......

13.......

14 

15. ..

16 

17 ...

18 .

19 

20 .

21.......

22.......

23 

24 

25 

26- 

27 

28 ...

29 

30 ..

31 

Oct.

5,850

7,260

9,930

7,840

6,400

5,850

9,030

6,680

5,060

4,120

3,480

3,480

3,090

3,090

2,720

3,090

3,090

2,380

2,220

2,060

1,900

1,600

1,900

1,900

1,900

1,900

1,750

1,600

1,460

4,120

2,180

2,180

2,180

2,000

2,000

1,670

1,670

1,670

1,830

1,830

1,670

1,670

1,520

1,520

1,670

1,830

1,670

1,670

2,370

2,180

2,180

2,180

2,180

2,000

2,000

S Oftft

2,000

1,830

1 830

1,670

Nov.'

2,220

1,900

1,750

1,750

1,900

1,900

1,900

2,720

2,220

IQ cum

19,500

19,900

16,600

11,800

8 430

6,400

5,060

4,810

4,810

4,570

4,340

4,120

3,900

3,690

3,690

3,690

3,480

3,280

3,280

2,900

1,670

1,830

1 830

i sin

9 17n

3,440

4,400

4,660

4,400

4 400

5,440

5,980

5,710

5,180

4,700

4,200

3 7ftA

3,670

3,670

3,670

3,670

3,670

4,150

3,670

O AAf)

9 ncn

2,980

Dec.

2,220

2,220

2,980

3,210

3 9in

3,670

3,670

4,150

4,150

4,150

3,910

3,910

3,670

3,440

3,440

3,440

3,210

2,980

2,770

2,770

2,180

2,180

1,520

7QA

Jan.

. ...

~

1 7KA

2,180

2,370

3,210

2

QOA

2,170

1,830

1,670

2,560

2,770

9 eon

Feb.

........

---

3,670

2,980

2,980

2 560

2,770

2,980

2,000

1,700

1,500

2,180

2,000

2,180

2,180

3,210

3,670

6,810

11,200

15,200

14,600

11,600

9,430

8,840

7,390

6,810

6,250

K AAf\

4,920

Mar.

13,200

91 Q/\n

91 inn

97 Qflft

23,800

OA 7ftft

21 400

1Q 9fK"l

16,000

14,200

 jo cnrt

11,600

28,400

QC Qftn

34.400

31,600

91 Qfifl

1Q ftlVl

H oftft

4 400

A IK/I

3,670

3,670

3,910

4,150

3,910

3,910

3,670

3,670

3,440

3,440

3,210

4,660

5,440

4,400

4,150

3,910

3,440

3,440

3,440

3,210

2,980

2,980

2,980

2,770

2,980

2,980

3, 210

3,210

2,980

Apr.

12,800

14,200

19,900

18 400

12,800

10,600

10,000

10,000

10,000

9

1QA

8,260

7,680

7,680

8,260

8,260

7 07ft

7 Q7ft

7 ^IQrt

7 Q7ft

90 nnn

34,000

24,600

O/l KftA

91 ftfift

21,800

16,000

19,200

20,300

TO CnA

16,600

4 -ten

4,660

4 660

4,150

4,150

3,670

3,670

3,910

3,670

3

AAf\

3,210

3,210

 > AAfl

3,670

3,670

7

OQA

8,550

8,550

ID Qnn

16,600

13,500

10,600

7 680

5,980

5,440

5,440

7,100

6,250

5,710

4,920

May.

17 000

16,600

15,200

13,900

13,500

12,800

10,900

10,000

9,430

9

1QA

17,400

26,500

30 000

Q1 £fiA

30 400

18,400

17 AfX\

16,300

15,200

11 onn

12,800

U onn

11,200

10 600

10,600

10,300

9,430

8 840

8*550

7,970

4,660

6,810

in onn

9,430

7,680

5,980

5,980

5 QRA

7 fiftA11,200

7,970

6,530

^ A4n

K AAf\

4,920

4,660

4 400

3,910

3,910

6,810

7,970

7,390

6,810

6,250

5,710

6,250

8,550

12,200

June.

7,390

10,300

7,970

7,390

6,530

6,250

6,250

6,250

5,980

8,260

8,840

7,390

5,980

5,180

4 660

4 400

3,910

3,670

3,670

3,670

4,400

4,660

4,920

4,660

4,660

4,660

4,150

4,150

4,150

4,150

17,700

17 4/lft

17 Aflfi

15,200

12,200

10 300

9,130

8,260

7,680

8,550

7,680

7,390

6,530

7,970

7,970

6,810

7,970

6,250

6,250

5,980

5,440

5,180

4,920

5,180

5,440

5,180

4,660

4,400

July.

4,150

4,400

5,440

5,980

7,970

12,800

11,900

14,200

14,600

15,600

18,400

18,800

19,600

26,900

28,000

30,000

20,300

17,000

14,900

12,800

11,200

10,300

10,600

9,130

8,260

7,680

7,390

6,810

6,250

5,440

5,180

7,970

7,390

5,710

4,920

5 440

3,910

3,670

3,440

3,440

3,210

2,980

2,980

2,770

2,560

2,560

2,370

2,000

2,000

2,OCO

1,830

1,830

1,670

1,670

1,520

1,370

1,370

1,370

1,370

1,370

l' 23*0

'

Aug.

4,660

4,400

4,150

3,910

3,670

3,440

3,210

3,670

4,920

5,710

4,920

4,400

3,910

3,440

3,210

2,980

2,980

2,770

2,560

2,560

2,560

2,370

2,770

8,550

9,430

8,840

7,680

6,530

5,180

5,180

5,180

1,230

2,370

2,980

4,400

3,440

2,980

3,440

3,440

2,000

1,520

2,000

1,670

1,520

2,980

2,370

2,000

1,830

1,676

1,370

1,370

2,560

2,560

2,000

1,830

1,230

1,100

1,100

1,670

1,670

1,370

1>230

Sept.

4,920

4,400

4,400

4,660

5,980

8,260

7,070

6,530

7,100

12,200

11 onn

10,900

8,840

8,550

8,550

6,530

5,440

5,180

4,660

4,150

3,910

3,440

3,210

2,980

2,980

2,770

2,770

2,560

2,560

2,560

1,230

1,370

2,000

2,770

4 Ann

3,210

2,180

1,520

1,520

2,560

11,200

11,200

7,390

5,710

6,250

18, 100

31,200

29,200

21,800

19,600

24,900

22,200

20,700

15,600

13,900

11,200

9,130

7,970

7,390

6,810

NOTE. The above record of daily discharge supersedes previously published records. Stage-discharge 

relation affected by ice Dec. 1, 1917, to Feb. 11, 1918, Feb. 18-25, 1918, and Dec. 3, 1919, to Mar. 12, 1920; 

discharge not determined. During these periods the gage was read only during December, 1917, and Feb. 

18-21,1918. Stage-discharge relation also aflectei by ice Dec. 26, 1918, to Jan. 24, 1919, Feb. 5-12,1919, Feb. 

28 to Mar. 9, 1919, Nov. 16-18, 1920, Dec. 24, 1920, to Jan. 5, 1921, Jan. 11-19, 24-31, 1921, and Feb. 9 and 

10,1921; discharge ascertained by means of gage heights, weather records, and comparison with flow of this 

river at Keosauqua. During these periods the gage was not read Jan. 2-24, Feb. 8-12, and Mar. 2^9, 1919, 

and Dec. 27-31, 1920. Gage-height record unreliable for July, 1917; discharge not determined. Discharge 

interpolated June 30, 1919, on account of missing gage reading. Braced figures show mean discharge for 

periods included.
142 SUBFAGE WATER SUPPLY, 1921, PAET V.

Monthly discharge of Des Moines River at Ottumwa, Iowa, for tfye years ending

Sept. SO, 1917-1921.

[Drainage area, 13,200 square miles.]

Month.

1917. 

March 28-31.. _ ....

April _______________________

September _______ ________ _ ... .

1917-18.

April........................................

July.........................................

1918-19.

April .....................................

July

The year.... ___ _ __ . _ .----_._

1919-20.

March 13-31.. _ .... _ . _ . _ .. __ .....

April....... ............ .........

July . .._.._..._._._-......

1920-21.

April.... .................................

May ____ . ________ . ____ .........

July _.._ . _ _ .

August _ . ___ _ __ .-.---.. .. ... .

The year.. ________________

Discharge in second-feet.

Maximum.

26, 100 

18,400 

18,400 

60,000 

2,060 

7,550

625 

625 

4,120 

1,750 

14,800 

42,900 

3,280 

3,280 

4,120

2,060 

3,090 

3,280

6,970 

38,900 

32, 900 

44,700 

37, 800 

15, 200 

4,340 

6,970

44,700

9,930 

19, 900 

35, 300 

34,000 

31, 600 

10,300 

30,000 

9.430 

13,900

2,370 

6,250 

4,150

15,200 

5,440 

16,600 

12,200 

17, 700 

7,970 

4,400 

31, 200

31, 200

Minimum.

22, 100 

6,680 

5,850 

6,680 

845 

625

435 

435 

1,900 

1,080 

625 

3,280 

1,080 

845 

735

525 

2,060

6,680 

4,810 

4,340 

2,720 

1,200 

525

525

1,460 

1,750 

11,600 

7,390 

7,970 

3,670 

4,150 

2,370 

2,560

1,520 

1,670

2,770 

3,210 

3,910 

4,400 

1,230 

1,100 

1,230

Mean.

24,500 

8,710 

9,370 

26,400 

1,280 

1,640

512 

499 

2,650 

1,260 

2,960 

16,800 

1,890 

1,640 

1,390

806 

2,370 

2,290 

1,920 

3,250 

11,900 

17,400 

15,700 

20,800 

6,650 1,990 V 

1,820

7,240

3,830 

5,880 

21,700 

14,800 

14,800 

5,620 

12,600 

4,510 

5,760

1,880 

3,820 

2,570 

2,270 

5,360 

3,620 

6,160 

6,840 

8,510 

 2, 880 

2,090 

10, 800

4,700

Per

square 

mile.

1.86 

.660 

.710 

2.00 

.097 

.124

.039 

.038 

.201 

.095 

.224 

1.27 

.143 

.124 

.105

.061 

.180 

.173 

.145 

.246 

.902 

1.32 

1.19 

1.58 

.504 

.151 

.138

.548

.290 

.445 

1.64 

1.12 

1.12 

.426 

.955 

.342 

.436

.142 

.289 

.195 

.172 

.406 

.274 

.467 

.518 

.645 

.218 

.158 

.818

.356

Run-off 

in inches..

0.28: 

.74 .82- 

2.23- 

.11 

.14

.04 

.04 

.23. 

.11 

.26 1.42' 

.16 

.14 .12"

.07 

.20 

.20- 

.17 

.26 

1.04 

1.47 1.37' 

1.76 

.58- 

.17 

.15-

7.44

.33. 

.50 

1.16 

1.25 

1.29 

.48 

1.10 .39- 

.49

.16 

.32 .22- 

.20 

.42 

.32 .52- 

.60 .72' 

.25 

.18. 

.91

4.82-

DES MOINES RIVER AT KEOSAUQUA, IOWA.

LOCATION. In sec. 36, T. 69 N., E. 10 W., at county bridge in Keosauqua,. 

Van Buren County, a quarter of a mile above old dam site and Governmentlocks. No important tributary within several miles up or down stream.

DRAINAGE AREA. At gaging station, 13,900 square miles; at mouth, 14,300* 

square miles (measured on map issued by United States Geological Survey;; 

scale, 1 to 500,000).
UPPEB MISSISSIPPI EWER BASIK. 148

HECOBDS AVAILABLE. May 29, 1903, to July 21, 1906; April 5 to December ''SI, 

1910 (United States Engineer Corps); August 3,1911, to September 30,1921.

^GAGE. Chain gage attached to upstream handrail of bridge; read by Frank 

Schreckengast.

DISCHARGE MEASUREMENTS. Made from bridge to which gage is attached.

 CHANNEL AND CONTROL. Channel shifts considerably at flood stages. Control 

is gravel bar about a quarter of a mile below gage.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 9.45 feet at 

8 a. m. September 21 (discharges, 27,100 second-feet); minimum discharge, 

estimated 750 second-feet December 26-29 (stage-discharge relation affected 

by ice).

1903-1906 and 1910-1921: Maximum stage recorded, 27.85 feet June 1, 

1903 (discharge, 97,000 second-feet; gage height referred to datum used 

since 1910); minimum stage, 0.0 foot August 28 to September 6, 1911 (discharge, 160 second-feet).

Flood of June 1, 1851, reached a stage of about 24 feet (discharge, about 

80,000 second-feet).

ICE. Stage-discharge relation seriously affected by ice.

ACCURACY. Stage-discharge relation changed several times during period; seriously affected by ice during most winters. All rating curves fairly well 

defined. Gage read to half-tenths once daily except as noted in footnote 

to table of daily discharge. Daily discharge ascertained by applying daily 

gage height to rating table except as noted in footnote to table of daily 

discharge. Open-water records good except possibly those for extremely 

low stages, which are subject to error; winter records fair to poor.

Discharge measurements of Des Moines River at Keosauqua, Iowa, during the year

ending Sept. SO, 1921.

Date.

Nov. 12

Dec. 3

Jan. 31

Made by 

-- do...........----.

- .do..-......- ....

Gage 

height.

Feet. 

2.67

1.71

1.75

Discharge.

Sec.-ft. 

5,610

3,250

3,300

Date.

July 19

Made by 

E. D. Burchard ........

Gage 

height.

Feet. 

1.20

8.57

Discharge.

Sec.-ft. 

2,290

23,800

Daily discharge, in second-feet, of Des Moines River at Keosauqua, Iowa, for the 

period May 11, 1918, to Sept. SO, 1921.

Day.

1913. 

1 -

2........

3........

 4 ........

5 

'6........

'7........

8........

9........

10_ 

11 __ ...

12........

13........

14........

15........

May.

10,700

10,100

10,100

11, 300

18,200

June.

15,000

14,000

14,400

12,500

11,300

9,810

9,230

8,070

7,210

6,930

5,810

5,540

5,000

5,000

3,970

July.

5,000

5,540

2,790

2,460

2,340

9 94ft

2,120

2.020

1,800

1,600

1,600

1,500

1,400

1,310

1,310

Aug.

882

805

805

730

655

 655

588

588

588

882

882

1,040

1,130

1,500

Sept.

730

655

655

588

588

588

588

520

520

520

655

1,130

655

655

588

Day.

1913. 

16. 

17 

18.....--.

19.. 

20 

21 

22 

23 

24 ...

OK

26........

27 

28 .

29 

30 

31. 

May.

22,400

11,000

24,800

25,800

24,800

26,200

26,200

25,500

25,500

25,500

25,800

24,800

23,500

20,800

18,800

16,600

June.

3,970

3,370

3,370

2,900

2,900

2,460

7,210

5,810

6,650

6,650

14,400

13,400

11,600

9,810

8,360

July.

1,310

1,220

1,220

1,130

1,130

1,130

1,130

1,130

1,040

1,040

1,040

1,040

960

960

882

882

Aug.

1,500

1,400

2,460

2,240

1,500

1,500

1,400

1,330

1,220

1,130

960

960

960

882

805

730

Sept.

588

588

655

655

805

730

655

655

655

655

588

588

588

588

655
144 SUEFACB WATEE SUPPLY, 1921, PABT V.

Daily discharge, in second-feet, of Des Moines River at Keosauqua, Iowa, for the 

period May 11, 1913, to Sept, SO, 1921 Continued.

Day.

, 1913-14. 

1 

2.... .........

3.............

4.............

5-. 

6 _ . .

7......... . .

8.............

9....

10... ...... .

11 . . .

12..

13,..

14..... .

15........... .

16.......

17 ........ ..

18...

19..... .

20... .... .

21....... . ..

22..

23.....

24 .. .. . .

25........... ..

26.....

27..

28.... .

29........ . .

30... .

31..... .

1914-15. 

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.

73C 

73C 

73C 

80£ 

882

882 

1,130 

1,220 

1, 22C 

1,800

1,220 

1,040 

1,040 

1,040 

1,220

1,700 

1,700 

1,400 

1,310 

1,310

1,220 

1, 130 

1,040 

960 

960

882 

960 

960 

882 

882 

730

3,500

3,300 

3,100 

2,900 

2,800

2,800 

2,900 

3,300 

4,500 

8,500

10,700 

11,900 

10,700 

9,520 

8,360

7,780 

7,780 

8,650 

8,360 

7,780

6,090 

5,540 

5,270 

5,000 

4,480

3,970 

3,850 

3,730

3,370 

3,250 

3.250

Nov.

65 

65 

65,, 

65 

58

58 

58 

588 

588 

52

520 

588 

588 

655 

588

588 

588 

588 

655 

588

588 

588 

588 

655 

588

588 

588 

588 

655 

730

3,020

2,790 

2,680 

2,560 

2,460

2 240 

2 240 

2.240 

2,120 

2,120

2,120 

2,020 

2,020 

1,910 

1,800

1,600 

1,600 

1,600 

1,500 

1,500

1,400 

1,310 

1,220 

1,130 

1,220

1,250 

1,220 

1,130

1,220

1,220

Dec.

96C 

96C

882 

882 

80S

80S 

80S 

805 

96C 

882

960 

960 

960 

1,040 

960

960

882 

882 

960 

882

805 

805 

730 

805 

805

882 

960 

882 

882 

730 

730

 

------

......

Jan.

r

 -

.. .

E;;

Feb.

......

29,000 

28,600 

22,100 

19,500 

18,000

23,000 

27,600 

32,600 

36,300 

37,000

35,900

......

Mar.

......

::::"

Apr.

3,370 

3,370 

2,90C 

2,560 

2,24fl

2,240 

2,120 

2,020 

2,020 

1,700

1,700 

1,600 

1,600 

1,600 

1,500

1,400 

1,310 

1,220 

1,220 

1,130

1,040 

1,040 

1,040 

1,130 

1,220

1,220 

1,220 

1,600 

1,500 

1,700

13,100 

12,500 

11,900 

11,900 

11,600

11,000 

10,700 

10,700 

10,700 

10,400

9,810 

9,520 

8,650 

8,360 

7,780

7,210 

6,930 

6,650 

6,090 

6,090

5,810 

5,540 

5,000 

5,000 

6,650

May.

3,370 

4,74C 

4,22C 

3,85(1 

3, 73C

3,020

2,900 

3,850 

3,02C 

2,460

2,900 

6,650 

10,100 

12,500 

8,940

6,090 

3,970 

2,460 

2,340 

2,240

2,020 

1,910 

1,800 

1,600 

1,500

2,340 

2,790 

5,000 

4,480 

4,740 

5,810

5,810 

5,000 

5,000 

5,000 

5,270

6,090 

6,090 

5,810 

6,090 

6,080

5,540 

6,540 

5,000 

4,480 

4,480

4,220 

3, 7301 

3,490 

3,370 

3,490

5,540 

6,000 

S»850 

8,970 

6,080

13, "WO 

20,806 

24,800 26,900' 

30,800 

34.800

June.

5,540 

5,. 270 

5,000 

4,480 

3,970

3,490 

1 3, 250 

2,680 

2,680 

2,900

3,610 

3,970 

3,970 

5,000 

5,540

7,210 

8,650 

8,940 

8,940 

8,070

8,360 

7,780 

7,780 

7,780 

7,210

7,780 

7,780 

10,100 

11,300 

8,650

42, 200 

50,400 

52,600 

49,600 

45,900

42,600 

38, 500 

32,200 

27, 200 

23,500

22,800 

21, 400 

22,400 

18,200 

15,000

13,100 

12,500 

12,200 

17,500 

17,200

15,000 

12,800 

11,300 

10,700 

9,520

11,300 

8,940 

11,900 

11,900 

12,500

July.

7,490 

6,370 

6,090 

5,540 

5,540

5,540 

5,540 

6,090 

4,740 

4,740

4,740 

4,220 

4,740 

4,480 

3,970

3,730 

3,970 

3,850 

3,250 

2,790

2,680 

2,460 

2,460 

2,240 

2,020

2,020 

1,800 

1,800 

1,600 

1,600 

1,600

16,900 

14,400 

12,500 

13,700 

11,600

' 8,940 

11,300 

12, 500 

12,500 

13, 100

17,500 

12^00 

12,500 

13,700 

19,500

15,300 

18,200 

20,800 

28,000 

29,700

30,100 

30,400 

33,000 

54,800 

43,000

27,600 

19,500 

29,000 

41,500 

45,900 

48.900

Aug.

1.60C 

1,60C 

1.40C 

J, 310 

1,311

1,40{ 

1,40C 

1,220 

1,130 

1,130

1,040 

1,130 

960 

960 

882

882 

882 

730 

730 

960

882 

805 

730 

730 

655

588 

655 

805 

655 

655 

588

49,600 

52,600 

59,200 

34,100 

22,100

18,500 

16,900 

15,600 

16,900 

15,000

13,700 

12, 800 

11,900 

11,300 

11,300

11,300 

11,900 

14,400 

14,700 

14,000

15,000 

14,400 

10,700 

8,360 

8,360

8,070 

7,210 

6,650 

6,090 

5,810 

5.810

Sept.

1,910 

1,800 

1,400 

960

882

1,500 

1,220 

1,220 

1,130 

3,370

5,000 

3,970 

3,370 

3,140 

13,100

23,500 

28,600 31,900- 

30,400 

30,400

16,200 

11,300 

8,360 

11,900 

10,700

8,360 

6,370 

5,000 

3,970 

3,730

6,370 

5,810 

5,540 

5,600 

5,000

4,740 

4,480 

4,220 

6,930 

7, 210,

10, 700 

11,300 

8,360 

5,810 

5,270

5,540 

5,810. 

20,100 

17,200 

12,500-

8,360 

9,230-

7,780- 

7,780 

6,65O

7,78O 

26,200s 

28,600> 

27,600 

26,900=
TIPPER ^ilSSISBlPPT EIVEK BASlN.

Daily discharge, ih second-feet, of Des Moines River at Keosauqua, lotiva, for 

period May IS, 1918, to Sept. SO, 1921 Continued.

Day.

1915-16. 

1

2 -

3 

4 .... .

5 .... . _.._,_

6 ...... .

7. ,.

8 ...... 

9 .... ......

10 

11 

12 

13.. 

14 

15 

16 

17 

18 .

19 

20 

21. .

22 

23. _ .... 

24 

25 

26 

27 

28- 

29 

30 

31 . 

1916-17. 

1 .... . .....

2 

3 _ . , ..

4 ... .

5 ... ... ... .

6 

7... ..... ..... .

8 

9 ...... 

10 

11 

12

13 

14 

15 

16 _ -

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 , .

27 

28 

29 

30. _ . _

31 - 

Oct.

29,000 

29,400 

27,600 

25,5001 

22,100

18,800 

16,200 

15,000 

13,700 

12,500

11,900 

11,000 

10,400 

9,520 

9,230

8,940 

9,520 

9,810 

9,230 

9,520

11,900 

13,100 

13,100 

12,200 

11,300

10,100 

9,230 

8,360 

7,780 

7,490 

6,930

530

460 

520 

655 

730

655 

588 

696 

805 

655

520 

460 

400 

400 

348

295 

295 

348 

400 

348

295 

295 

295 

295 

400

400 

520 

460 

490 

520 

520

Nov.

6,650 

6,370 

6,090 

5,810 

5,540

5,270 

5,000 

4,740 

4,480 

4,480

4,480 

4,480 

5,000 

6,090 

9,520

11,900 

11,900 

11,300 

10,700 

10,100

9,230 

8,650 

8,070 

7,210 

7,210

7,780 

7,210 

6,650 

6,650 

6,090

508 

574 

574 

574 

541

508 

508 

588 

730 

730

730 

692 

655 

655 

1,040

1,310 

805 

730 

730 

730

805 

805 

882 

960

882

844 

805 

805 

655 

655

Dec.

5,810 

5,540 

5,270 

5,000 

4,480

4,480 

4,480 

4,480 

4,480 

4,220

4,220 

4,220 

4,220 

4,220 

3,730

2,920 

2,120 

2,120 

2,000 

1,800

1,500

730 

882 

844 

805 

805

730 

730 

730 

588 

554

520 

520

300

Jan.

3,000 

6,090 

6,090 

5,000 

6,090

5,000 

3,500 

2,000

1,800

12,000 

20,100 

12,500 

8,940 

8,940

9,520 

16,600 

13,100 

11,600 

7,210 

7,210

400

Feb.

5,540 

4,740 

3,970 

3,000 

2,500

2,000 

1,800

1,500

1,460

2,000 

3,000 

5,000 

10,000 

13,700

15,000 

14,000 

29,700 

28,600 

24,800

22, 100 

18,200 

16, 200 

13,700

350 

500

Mar.

12,500 

10,400 

8,940 

6,930 

6,090

5,540 

5,540 

5,270 

4,740 

4,740

5,000 

5,540 

6,650 

12,800 

13,700

15,300 

17,800 

17,800 

16,600 

15,300

15,000 

13,700 

13,100 

12, 800 

15, 600

36, 700 

42,600 

25, 500 

20,800 

20,800 

20,100

600

" 1,540

2,190 

2,840 

4,620 

10,100 

13,100

12,200 

12,800 

11,600 

10,400 

7,860

6,200 

8,420 

12,500 

13,700 

18,800

20,800 

22,800 

24,800 

26,200 

25,800 

22.800

Apr.

19,500 

18,200 

16,900 

15,000 

13,700

12,500 

11,900 

11,300 

10,700 

10,100

9,520 

9,230 

8,940 

8,650 

8,360

8,220 

8,070 

7,780 

7,780 

8,360

8,940 

8,940 

8,900 

13, TOO 

13,]J)0

11,900 

10, 700 

9,810 

9,230 

14,000

18,900 

15,000 

12,500 

11,300 

10,100

9,560 

8,990

8*990 

8,990

8,700 

8,700 

8,990 

8,420 

7,860

7,300 

7,300 

6,750 

7,580 

6,750

6,200 

6,200 

6,200 

7,300 

7,580

7,300 

7,300 

6,750 

10,900 

15,000'

May.

17,500 

16,600 

12,200 

11,600 

10,400

9,230 

8,500 

7,780 

7,210 

6,650

6,090 

9,520 

15,300 

25,200 

28,000

21,100 

20,400 

21,400 

17,500 

14,700

14,200 

13,700 

15,000 

29,400 

24,100

17,500 

16,200 

15,100 

14,000 

13,100 

12,200

20,800 

18,200 

13,700 

21,100 

22,100

19,800 

17,500 

15,000 

12,500 

10,700

9,560 

8,420 

7,720 

7,020 

6,480

5,660 

5,400 

4,880 

4,620 

4,380

4,130 

13,700 

7,860 

5,400 

7,300

7,300 

7,020 

6,750 

6,750 

6,750 

7,300

June.

11,000 

10,100 

9,230 

8,940 

8,650

15,000 

14,400 

11,600 

10,700 

9,230

8,080 

6,930 

6,090 

' 5,540 

5,000

4,740 

4,480 

4,220 

3,970 

3,730

4,220 

4,480 

4,220 

4,480 

3,980

3,490 

3,290 

3,250 

3,250 

3,490

6,200 

11,900 

28,300 

28,000 

41,800

46,700 

41,100 

40,000 

41,500 

45,900

50,700 

48,900 

55,500 

57,800 

51,100

i 37, 400 

29,000 

19,100 

16,200 

13,700

12,200 

10,700 

10,400 

9,410 

8,420

7,860 

7,300 

10,400 

8,700 

8,420

July.

3,490 

3,490 

3,490 

3,020 

4,220

3,020 

2,680 

2,560 

2,450 

2,340

2,240 

2,120 

1,910 

1,800 

1,800

1,960 

2,120 

1,910 

2,020 

1,910

1,910 

1,700 

1,600 

1,500 

1,400

1,310 

1,310 

1,220 

1,130 

1,130 

1,130

8,140 

7,860 

7,300 

6,750 

5,660

5,400 

4,880 

4,630 

4,380 

4,380

4,380 

4,620 

4,880 

4,620 

4,380

4,130 

4,130 

4,130 

4,130 

3,650

3,420 

3,420 

3,420 

2,950 

3,420

2,950 

3,180 

2,950 

2,780 

2,610 

2,060

Aug.

1,040 

1,040 

960 

960 

1,040

922

805 

805 

805 

805

1,220

882 

961 

1,040 

1,130

1,130 

1,040 

960

882 

844

805 

655 

655 

655 

588

484 

454 

424 

424 

424 

484

1,740 

1,740 

1,640

1,740 

1,740

1,740 

1,740 

1,740 

1,540 

1,430

1,430 

1,430 

1,430 

1,430 

1,320

1,320 

1,320 

1,220 

1,220 

1,220

1,220 

1,130 

1,120 

1,320 

1,220

1,170 

1,120 

1,120 

1,020 

922 

825

Sept.

' 534 

534 

503

472

v 358

412 

412 

358 

412 

412

412 

412 

412 

412

412

412 

750 

960 

805 

730

655 

655 

601 

536 

472

472 

805 

737 

669 

601

825 

782 

740 

825 

740

1,120

6,750 

6,200 

4,580 

2,950

1,960 

1,960 

1,960 

1,740 

1,430

1,320 

1,220 

1,120 

1,120 

1,120

922

825 

782 

740 

831

922 

740 

740 

740 

700
146 SURFACE WATEE SUPPLY, 1921, PART V.

Daily discharge, in second-feet, of Des Moines River at Keosauqua, Iowa, for the 

period May 11, 1913, to Sept. 30, 1921 Continued.

Day.

1917-18.

1 L.. ........

2 ..............

3....... _ ....

4.... ..........

5........... ...

6..............

7........ ...

8..............

9..............

10..............

11 .

12....... _ ....

13... ....

14........ . ...

15 ..._.___

16..............

17..............

18 .. __ .. .

19.... ..........

20 .........

21....... .. .

22..............

23..............

24...........

25........ _ ...

26..............

27......... .

28... _ ..... .

29..............

30,. .........

31..... ...... ..

1918-19. 

1 

2............

3..............

4..... ___ ...

5.............

6..............

7. .............

8..............

9..........

10... ...........

11 ........

12..............

13........... .

14 ...........

15 

16. .

17 ., .

18 .......

19 .......

20 ..

21...... ...... ..

22..............

23 ..... .

24..... _ ......

25..............

26 ........

27 ..

28

29 ........

30 .........

31. .........

Oct.

655

655

655

655

588

588

588

588

520

520

520

520

460

490

520

520

588

1,220

655

588

524

460

460

520

460

588

588

588

588

588

520

825

825

740

740

642

608

574

574

574

574

574

508

478

448

508

642

740

642

508

541

574

574

574

574

642

574

574

KfA

1,740

1,640

2,390

Nov.

520

460

520

490

460

520

460

460

460

460

460

460

460

460

460

460

520

520

520

460

460

460

460

400

400

400

460

400

400

400

2,280

2,060

2,400

2,600

2,950

2,950

2,950

2,840

2,500

9 3Qfi

2,170

2,060

2,060

2,170

2,170

2,280

9 3QO,

2,280

2,170

2,060

2,390

2,620

9 Rdfi

2,840

2,610

o Kfin

2,390

9 17fl

Dec.

400 itno

400

400

400

2,120

9 fififl

1 QtUl

1 Qftrt

1,060

2,170 2,390

2 340

2

OOfl

9 9Rft

2 280 9 oort

9 ^Qfi

2,610

2 780

9 Qiy"!

3,180

3 300

3,420

3,420

3,420

3,180

9 Q^ft

3

1OA

9 osn

2,200

1 900

1 600

1 600

1,600

1.600

Jan.

1 600

1,200

1,200

1 000

1,000

1 000

1,000

1,100

1,200

1,200

1,200

1,200

1 600

1,600

1,700

1 QA/l

2 Ann

2 100

2^200

2,600

3,180

5,140

5

Af\f\

2

QAf\

3,650

3,080

9 *UV1

9 3QO,

2,610 9 f>nn

2.610

Feb.

»

2 79/1

2,610

9 (ifln

2,170

1,900

1,100

1,000

1 000

1,100

1,200

1 430

1,320

1,850

4,130

4,880

4,630

A QQA

3

*QQn

5,140

6,480

7,020

6,750

6,480

6,200

6,200

K AAA

4,620

9 *um

Mar.

2,150

2,220

2,280

2,500

2,720

2,950

2,950

4 ISft

2,950

2,610

2,500

2,280

1,000

1,100

1,430

2,610

3,180

3,180

3,650

4,130

4,380

4,620

6,480

7 860

6,750

6,480

7,020

90 finn

43,700

07 cnn

32,600

23,500

17, 500

15,900

14,700

10 Iftfl

11,900

11 000

10^700

10,400

10,100

9.850

Apr.

2,060

i oftn

i oftn

1,740

1,640

1,540

-1,480

1,430

1,320

1,320

1,220

1,120

1,120

1,070

1,020

1,120

1,120

1,120

1,120

1,120

1,120

1,120

1,120

1,120

1,120

1,540

1,020

1,070

1,120

1,020

9,560

9,280

S oon

8,700

8,420

8,140

7,860

7 860

Q 7/yi

11, 300

16,600 91 RAH

99 inn 10 oftn

22,400

99 dftft

23,100

on onn

19,800

19,300

18,800 91 ion

25,800

28,600

90 df\f\

31,900

31,500

OA QAf\

19,100

18,800

May.

1,020

Q99

7dn

825

1,070

1,320

1,120

1,020

628

628

628

628

628

740

628

628

1,430

1,850

1,800

1,740

3,180

3,890

2,500

3,890

3,180

4,960

6,750

15,000

25,500

15,900

11,000

18,500

20,400

25,500

38,900

38,900

37,000

38,500

41,800

21,100

17 *yiA

16,900

14 000

19 *iflfl

11,600

10,700

S oon

9,280

8,420

7,580

Q -lAf\

7,300

6,480

6,200

e fian

4,880

4,620

4,620

4,380

June.

9,850

11,300

12,800

14,700

20,100

22,800

25,200

28,300

33,300

39,300

39,300

36,700

28,600

19,800

15, 600

12,400

9,280

7,860

6,750

5,930

5,140

4,620

4,300

10,400

40,000

14,700

8,700

5,660

5,140

4,760

4,400

6,480

24,500

27,600

31,200

31,200

34,400

35,900

30,800

21,100

18,500

24 goo

22,800

19,600

19,500

18,500

17,200

17,200

18,800

17,800

17,800

19,500

on 4/ifl

18,800

17,500

17,200

f7 OrtA

17,000

16,900

July.

4,380

3,420

3,180

2,840

2,610

2,610

2,560

2,500

2,500

2,390

2,390

2,500

2,610

2,560

2,500

2,500

2,280

2,170

2,060

1,960

1,850

1,740

1,740

2,500

1,740

1,740

1,640

1,800

2,950

1,430

1,320

16,200

14,000

n orm

10,500

9,850

9,000

8,420

7

KQfl

7,020

7,580

19 *yiA

8,420

8,700

Q QQA

7,300

7,860

7,300

6,200

5,400

5,140

4,880

4,620

4,380

t aon

3,890

3,420

q «inn

3,180

3,180

3 1Sfi

3.180

Aug.

1,320

1,320

1,640

1,540

1,430

1,430

1,320

1,220

1,220

1,220

1,020

825

1,120

825

825

825

1,020

1,150

1,640

1,640

2,950

2,390

2,170

4,880

3,690

2,500

2,840

2,950

2,950

3,180

3,420

3,180

3,180

3,060

2,950

2,720

2,720

2,950

4,380

9 Qlfl

2,500

2,170

9 ftfirt

1,960

1 Qfin

2,170

2,500

2,280

2 060

1 QfiH

1,740

1,740

I AdA

1,540 i £Qft

1

44ft

i ddn

1 440

1 44fl

1,240

i i ^n

1.010

Sept.

3,800 7 inn

6,480

4,130

2,950

2,610

2,060

1,850

1,640

1,540

1,540

1,540

1,430

1,320

1,320

1,320

1,120

1,120

1,120

1,120

1,120

1,070

1,020

1,020

922

922

922

922

874

825

875

1,340

1,150

710

875

792

792

875

875

792

7CW

792

710

610

510

640

570

fidfi

710

2,060

4,130

6,200

6,750

5,660

4,130

3,180

2,280

Q OftA

4,380

3,180
UPPER MISSISSIPPI BIVEE BASIN.

Daily discharge, in second-feet, of Des Moines River at Keosauqua, Jowa^for 

period May U, 1913, to Sept. SO, 1921 Continued.

Day.

1919-20. 

1.. ............

2... ...........

3.............

4...... ........

5 _____ ....

6..............

7..............

8-.......--...

9. _ ..........

10...... .....

11 

12..............

13..............

14............ .

15 

16 

17 

18 .. 

19 

20.......... .

21 .. .

22 

23 _____ ...

24 

25 ...... ... .

26 ........ ..

27 

28 

29... ...........

30 

31 

1920-21. 

1 

2.... ......

3..............

4 

5 

6 

7 

8 .

9... .....

10 

11 

12 

13 

14..... .........

15 

16 

17 

18 .....

19 

20 

21..............

22 

23............

24... .... ... . ,

25... ...

26 ........

27 ........

28 

29

30 .

31 

Oct.

9,850

7,300

10,700

9,560

7,880

6,200

9, 560

8,420

6,200

4,880

4,130

3,890

3,650

2,950

3,180

3,180

3,420

2,840

2,620

2,390

2,280

2,280

1,740

2,280

2,170

2,170

2,170

1,960

1,740

1,740

3,180

2,340

2,340

2,230

2,120

1,910

2,120

2.020

1,910

1,600

1,600

1,600

1,600

1,500

1,500

1,500

1,500

1,500

1,500

1,700

2,020

2,240

2,120

2,120

2,020

1,910

1,800

1,700

1,800

1,700

1,700

Nov.

4,620

3,450

2,280

2,060

2,280

2,280

1,740

3,650

3,000

11,300

22,400

22,100

20,100

13,700

10,700

8,590

6,480

5,660

5,400

5,400

5,140

4,620

4,380

4,130

4,130

3,890

3,890

3,890

3,890

3,500

1,700

1,700

1,600

1,600

1,800

2,560

3,260

3,970

3,970

3,970

4,480

5,540

6,090

5,820

5,540

5,000

4,480

3,970

3,730

5,540

4,520

3,490

3,490

3,490

3,490

3,490

3,250

3,250

Dec.

2,100

1,800

1,400

1,200

1,400

1,700

2,400

3,200

3,000

2,600

2,500

2,400

2,400

2,300

2,300

2,200

2,200

2,100

1,900

1,900

1,900

1,900

1,900

1,900

1,800

1,900

1,900

2,000

1,800

1,800

3,020

3,250

3,490

3,730

3,970

3,970

3,970

3,970

3,730

3,570

3,410

3,250

3,250

3,020

2,520

1,800

1,600

960

960

OKA

750

7Kft

750

7Efi

1,000

1 <?nn

Jan.

1,800

1,800

1,800

1,900

1.900

1,900

1,900

1,800

1,800

1,700

1,700

1,600

1,600

1,500

1,500

1,400

1,400

1,300

1,400

1,400

1,300

1,200

1,100

1,100

1,100

1,100

1,000

1,000

1,600

1,800

1,950

2,100

2,200

2,350

2,460

2,720

2,980

3,250

2,960

2,680

2,500

2,350

2,200

2.100

1,950

1,900

1,900

1,900

2,100

2,300

2,600

2,560

2,400

2,300

2,300

2,700

3,050

3,490

Feb.

1,000

1,100

1,100

1,100

1,200

1,300

1,400

1,600

2,000

2,600

4,000

4,800

6,000

4,800

4,000

3,500

2,800

2,600

2,200

2,000

1,900

1,800

1 600

1,500

1,500

1,400

1,400

1,300

1,200

3,260

3,020

2,900

2,790

2,790

2,790

2,790

2,460

1,800

1,600

2,120

2,020

2,120

2,790

3,250

4,220

8,360

14,400

15,000

12,800

10,700

7,780

7,780

6,650

5,820

5,000

Mar.

1,100

1,200

1,100

1,000

2,000

4,000

6,000

6,000

5,500

5,000

4,000

10,000

15,000

13,000

18,800

23,500

24,500

20,800

20,400

20,800

17,900

15, 000

13,400

11,900

34,800

44,100

38,900

33,300

27,200

20,400

15,900

4,740

4,480

3,970

3,500

3,970

4,220

3,970

3,970

3,730

3,730

3,490

5,540

5,270

4,480

4,220

3,730

3,730

3,490

3,490

3,250

3,250

3,250

3,250

3,250

3,250

3,020

Apr.

13, 700

13,100

17,500

19, 100

14,700

11,300

10,700

10,700

10,400

9,560

8,700

8,420

9,850

8,420

8,140

7,580

7,500

16,200

29,000

33,300

27,600

23,800

22,800

19,500

16,600

18,800

21, 100

17, 200

3,730

4,480

4,400

4,220

3,970

3,730

4,220

3,970

3,700

3,250

3,250

3,490

3,730

3,730

10,100

11,900

11,300

13,700

17,200

15,900

12,800

9,810

8,300

6,650

8,940

9,230

6,650

5,810

May.

16,900

16,600

16,200

14,400

13,400

13,100

12,200

11,300

10,400

9,560

8,990

24, 100

28,000

28,600

29,700

29,000

22, 100

18, 200

17,200

15,900

14,400

13,400

12,500

11, 600

11,000

10,400

9, 850

8,990

8,560

8.140

5,500

9,810

13,100

11,900

9,230

7,210

6,370

6,370

6,090

6,650

7,780

14,700

9,810

7,490

7,000

5,810

5,270

5,270

4,740

3,970

4,480

5,000

7,780

7,780

7,210

6,090

6,930

11,300

June.

8,140

8,140

10, 100

8,140

6,750

7,160

7,580

6,200

5,660

6,750

8,140

8,140

6,640

5,140

4,620

4,130

3,890

3,420

3,180

3,200

3,890

4,380

4,380

4,620

4,380

4,380

4,350

3,890

3,890

4,380

14,400

14,700

18,200

14,000

11,300

10,100

8,990

8,420

7,860

7,700

7,580

7,300

7,020

8,700

7,860

7,300

6,890

6,480

6,750

6,750

5,930

5,400

5,140

5,940

6,750

5,660

5,400

5,900

July.

3,890

6,750

4,620

5,550

6,480

10,700

11,900

14, 400

14,400

15,900

17,200

18,500

24,500

32,200

29,000

22,400

19.00Q

15,600

13,400

11,900

10,400

10,400

9,560

8,570

7,580

7,300

6,200

5,930

5,660

5,140

5,930

8,140

6,770

5,400

4,620

5,140

3,650

3,650

3,180

3,180

3,180

3,180

3,180

2,840

2,720

2,390

2,280

2,280

2,280

2,170

1,960

1,850

1,740

1,440

1,440

1,440

1,340

1,240

1,440

1,240

1,240

Aug.

4,760

4,380

4,130

3,420

3,650

3,420

3,180

3,200

3,650

5,140

5,140

4,620

4, 1EO

3,650

3,300

2,950

2,840

2,500

2,500

2,390

2,950

2,780

2,610

2,840

9,280

8,990

7,860

6.750

5,940

5,140

4,620

1,150

2,840

4,620

3,180

4,620

3,420

3,300

3,180

2,390

1,740

2,170

1,960

1,640

3,000

2,390

2,390

2,060

1,740

1,540

1.4EO

2.800

3,000

2,300

2,000

1,850

1,600

1,400

1,640

1,640

1,340

1,240

Sept.

4,130

3,f50

3,<60

4,130

5,160

6,200

8,420

7,300

5,660

11,000

13,700

12,500

9,850

8,360

9,230

7,210

6,090

5,270

4,740

4,220

3,730

3,490

3,020

2,790

2,680

2,740

2,760

2,340

2,340

2,340

1,150

1,150

1,150

2,280

3,890

4,130

3,180

2,170

1,640

3,180

11,600

13,700

8,700

7,300

6,750

9,560

23,500

25,200

22,400

20,100

26,900

24,100

20,100

17,200

15,300

13,700

10,100

8,940

7,780

7,210

NOTE. The above record of daily discharge supersedes previously published records for the period. 

Stage-discharge relation affected by ice Dec. 19, 1915, to Jan. 1, 1916, Jan. 6-21 and Feb. 5-19, 1916, Dec. 

13, 1916, to Mar. 9, 1917, Dec. 26, 1918, to Jan. 20, 1919, Feb. 5-10, 28, and Mar. 1-2, 1919, Dec. 1, 1919, to 

Mar. 14, 1920, Dec. 25, 1920, to Jan. 6,1921, and Jan. 13-22 and 25-30, 1921; discharge ascertained by means 

of cage heights, occasional discharge measurements, observer's notes, weather records, and comparison 

with flow of this river at Des Moines or Keosauqua. The gage was not read during the following winter 

periods and discharge was not determined: Jan. 1 to Mar. 31, 1914, Dec. 1, 1914, to Feb. 15, 1915, Feb. 27 

to Apr. 5, 1915, and Dec. 6,1917. to Mar. 19, 1918. Stage-discharge relation may have been affected by ice 

during December, 1913. No gage readings Oct. 1-10, 1914, and Feb. 20-21, 1915; discharge estimated. 

During open-water periods from 1916-1921, the gage was not read on Sundays, except during high water, 

and occasionally readings are missing for week days; discharge was estimated or interpolated for such days. 

The mean discharge for December, 1914, was less than 1,000 second-feet. Braced figures show mean discharge for periods incluuied.
148 SURFACE WATER SUPPLY, 1921, PART V.

Monthly discharge of Des Moines River at Keosauqua, Iowa, for the period May 

11, 191S, to Sept. SO, 1921 Continued.

[Drainage area, 13,000 square miles.]

Month.

1913. 

May 11-31..-........ .....................

June. ___________________

July

August..

September _____ _____________

1913-14. 

October _____________ . __

December.. . ........ ....................

April........................................

June ____ ...

July........... - .. .........

September....--.... ___ . __ . _____ ..

1014-15. 

October ......................................

November ______________ . .. ....

April 6-30. . ....... .....................

June ___ . . -

July.................. ....................

September.... __________ .... ....

1015-16. 

October ______________________

December

January __________________

March. ......................................

April .

June .........................................

July.........................................

August

September... .. .. __ .... ...

The year. .. ... . __ .......

1016-17. 

October.. ....................................

January

February

June _______ ..........................

July

September ___________________

The year ______________

1017-18.

November ...................................

March 20-31..... ... .... _ ............

April .

May. ______________ . ___ .

July

August __ ___________ ......

September. .. .... ... .......

Discharge in second-feet.

Maximum.

26,200 

15,000 

5,540 

2,460 

1,130

1,800 

730 

1,040 

3,370 

12,500 

11,300 

7,490 

1,600 

31,900

11,900 

3,020 

13,100 

34,800 

52,600 

54,800 

59,200 

28,600

29,400 

11,900 

5,810

20,100

29,700

42,600 

19,500 

29,400 

15,000 

4,220 

1,220 

960

42,600

805 

1,310

882

26,200 

18,900 

22,100 

57,800 

8,140 

1,740 

6,750

57,800

1,220 

520 

3,180 

2,060 

25,500 

40,000 

4,380 

4,880 

7,300

Minimum.

10,100 

2,460 

882 

588 

520

730 

520 

730 

1,040 

1,500 

2,680 

1,600 

588 

882

2,800 

1,130 

5,000 

3,370 

8,940 

8,940 

5,810 

4,220

6,930

4,480

4,~740 

7,780 

6,090 

3,250 

1,130 

424 

358

358

295 

508

6,~206 

4,130 

6,200 

2,060 

825 

700

460 

400 

2,150 

1,020 

628 

4,300 

1,320 

825 

825

Mean.

20,400 

7,890 

1,690 

1,080 

643

1,090 

606 

878 

1,720 

4,110 

6,260 

3,860 

981 

9,160

5,710 

1,810 

8,780 

8,900 

23,100 

23,200 

16,900 

10,500

13,600 

7,160 

3,110 

6,000 

8,670 

14,000 

11,100 

15,200 

6,660 

2,130 

817 

544

7,420

471 

734 

456 

400 

393 

9,600 

9,080 

10,200 

26,800 

4,370 

1,360 

1,610

5,450

580 

461 

2,610 

1,300 

3,730 

16,800 

2,350 

1,890 

1,900

Per

square 

mile.

1.47 

.568 

.122 

.078 

.046

.078 

.044 

.063 

.124 

.296 

..450 

.278 

.071 

.659

.411 

.130 

.632 

.640 

1.66 

1.67 

1.22 

.755

.978 

.515 

.224 

.432 

.624 

1.01 

.799 

1.09 

.479 

.153 

.059 

.038

.534

.034 

.053 

.033 

.029

.008 

.691 

.653 

.734 

1.93 

.314 

.098 

.116

.392

.042 

.033 

.188 

.094 

.268 

1.21 

.169 

.136 

.137

Run-off 

in inches.

1.15 

.63 

.14 

.09 

.05

.09 

.05 

.07 

.14 

.34 

.50 

.32 

.08 

.74

.47 

.14 

.59 

.74 

1.85 

1.92 

1.41 

.84

1.13

.57 

.26 

.50 

.67 

1.16 

.89 

1.26 

.53 

.18 

.07 

.04

7.26

.04 

.06 

.04 

.03 

.03 

.80 

.73 

.'85 

2.15 

.36 

.11 

.13

5.33

.05 

.04 

.08 

.10 

.31 

1,35 

.19 

.16 

.15
TJPPEB MISSISSIPPI RIVER BASIH. 149

Monthly discharge of Des Moines River at Keosauqua, Iowa, for the period May 

11, 1913, to Sept. 30, 1&21 Continued.

Month.

1918-19.

March _____________________

April........................................

June _______________ _____ 

July.........................................

August _______________________

1919-20.

December. __________________

February- ...................................

April........................................

May.................................!.......

June ______________________

July.........................................

'September __________________

1920-21.

 October.. _____________ . ___ . ....

March ____________ . ..............

April.......................................:

May..... ............. ....................

June... _______________ . ... .....

July

.'September __________________

The year.. ________________

Discharge in second-feet.

Maximum

2,390

2,950 

3,420 

5,400 

7,020 

43,700 

31,900 

41,800 

35,900 

16,200 

4,380 

6,750

43,700

10,700 

22,400 

3,200 

1,900 

6,000 

44,100 

33,300 

29,700 

10,100 

32,200 

9,280 

13,700

44,100

2,340 

6,090 

3,970 

3,490 

15,000 

5,540 

17,200 

14,700 

18,500 

8,140 

4,620 

26,900

26,900

Minimum

448 

1,960 ijeoo

1,000 

1,000 

1,000 

7,860 

4,380 

4,400 

3,180 

1,010 

510

448

1,740 

1,740 

1,200 

1,000 

1,000 

1,000 

7,500 

8,140 

3,180 

3,890 

2,390 

2,340

1,000

1,500 

1,600 

750 

1,600 

1,600 

3,020 

3,250 

3,970 

5,140 

1,240 

1,150 

1,150

Mean.

732 

2,420 

2,460 

2,110 

3,590 

12,500 

18,100 

16,200 

20,800 

7,130 

2,16 

2,000

7,510

4,400 

6,620 

2,080 

1,480 

2,230 

15,400 

15,400 

15,300 

5,590 

13,000 

4,280 

5,620

7,650

1,840 

3,710 

2,540 

2,390 

5,220 

3,790 

7,080 

7,360 

8,970 

2,980 

2,310 

10,800

750 | 4,880

Par 

square 

mile.

.053 

.174 

.177 

.152 

.258 

.899 

1.30 

1.17 

1.50 

.513 

.155 

.144

.540

.317 

.476 

.150 

.106 

.160 

1.11 

1.11 

1.10 

.402 

.935 

.308 

.404

.550

.132 

.267 

.183 

.172 

.376 

.273 

.509 

.529 

.645 

.214 

.166 

.777

.351

Run-off 

la inches.

.09

:3

.18 

.27 

1.04 

1.45 

1.35 

1.67 

.59 

.18 

.16

7.34

.37 

.53 

.17 

.12 

.17 

1.28 

1.24 

1.27 

.45 

1.08 

.36 

.45

7.48

.15 

.30 

.21 

.20 

.39 

.31 

.57 

.61 

.72 

.25 

.19 

.87

4.77

RACCOON RIVER AT VAN METER, IOWA.

LOCATION. In SW. \ sec. 22, T. 78 N., R. 27 W., at highway bridge a third of a 

mile fro|n railroad station at Van Meter, Dallas County, 1 mile below mouth 

of Soutty Raccoon River, and 30 miles above junction with Des Moines River.

DRAINAGE AJREA. At gaging station, 3,410 square miles; at mouth, 3,590 square 

miles (nieasured on map issued by United States Geological Survey; scale, 

1 to 500,000). %

RECORDS AVAILABLE. April 25, 1915, to September 30, 1921.

*GAGE. Chajin gage attached to downstream handrail of bridge about 25 feet 

from rigjht abutment; read by George Cotton.

DISCHARGE ^MEASUREMENTS. Made from bridge to which gage is attached or 

by wading.

CHANNEL AND CONTROL. Bed composed of sand and gravel; subject to change; 

River divided into two channels at low and medium stages by an island; 

water surface slightly higher in left channel than in right at extremely low 

water. Right bank high and not subject to overflow; left bank subject to 

overflow at a stage of about 13 feet; at extremely high stage this overflow 

extends jfor several hundred feet beyond left end of bridge.
150 SURFACE WATER SUPPLY, 1921, PART V.

EXTBEMES OP DISCHAKGE. Maximum stage recorded during year, 11.0 feet at 

7.15 a. m. September 20 (discharge, 9,510 second-feet); minimum stage, 

2.25 feet at 7.15 a. m. July 30 (discharge, 194 second-feet).

1915-1921: Maximum stage recorded, 17.5 feet June 7, 1917 (discharge, 

31,800 second-feet); minimum stage, 1.56 feet October 22, 1918 (discharge, 

about 28 second-feet).

ICE. Stage-discharge relation seriously affected by ice during severe winters; 

observations generally discontinued under such conditions.

ACCURACY. Stage-discharge relation permanent except as affected by ice 

December 21 to February 13. Rating curve well defined between 75 and 

15,000 second-feet. Gage read to hundredths once daily except during 

period of ice effect when observations were discontinued. Daily discharge 

ascertained by applying daily gage height to rating table except for periods 

during which stage-discharge relation was affected by ice for which it was 

ascertained as indicated in footnote to table of daily discharge. Open-water 

records good; winter records fair.

The following discharge measurement was made by E. D. Burchard: 

July 19, 1921: Gage height, 2.81 feet; discharge, 414 second-feet.

Daily discharge, in second-feet, of Raccoon River at Van Meter, Iowa, for the year

ending Sept. 80, 1921.

Day.

1 ___ . __ .

2... .... ... ....

3 .... . 

4 ___ .. ......

5.... ... ... ... .

6 

7 ..........

8 

9... . .... 

10 - .

11.... _ . ......

12..............

13 . ..

14 _ ..... ......

15 . _ ...

16- .. .

17 ..

18- 

19-- 

20 ..........

21 

22..............

23. 

24 ..........

25. ...

26..............

27..............

28 

29... ...........

30...*.. ...

31 ...........

Oct.

298

298

408

318

298

298

279

279

298

298

279

298

279

298

543

730

602

459

384

384

340

340

384

384

340

340

340

340

340

Nov.

384

543

1,020

1,230

1,140

1,230

1,230

1,580

1,760

1,760

1,490

1,310

983

983

983

945

1,020

1,140

983

870

870

764

764

764

834

Dec.

870

945

1,020

1,060

1,060

1,020

983

945

870

834

799

799

799

799

730

633

408

486

434

350

Jan.

540

500

800

Feb.

550

3,860

2,720

5,990

6,910

6,380

5,990

4 080

2,240

1,950

1,760

1,670

1,580

Mar.

1,490

1,400

1,310

1,310

1,230

1,230

1,140

1,140

1,140

1,140

1,060

1,020

945

1,020

1,060

983

983

945

945

907

834

834

799

799

799

799

834

834

1,060

1,400

1,490

Apr.

1,310

1,230

1,140

1,020

907

870

870

764

764

764

870

870

799

730

730

945

1,760

1,670

1,400

1,310

1,400

1,060

1,020

945

May.

907

1.020

870

907

1,060

1,230

1,230

1,140

1,060

1,400

1,490

1,230

1,310

1,310

1,310

1,230

1,060

983

983

1,670

2,330

2,330

2,050

1,760

1,580

1,490

1,400

1,580

4 080

3,750

3,640

June.

5,120

4,530

4,300

3,540

3,330

2,820

2,330

2,050

1,950

2,240

2,050

1,860

1,580

1,400

1,580

1,860

1,310

1,140

983

1,060

834

834

799

697

572

602

1,310

834

633

1,670

July.

907

665

633

543

1,140

764

665

514

459

434

434

384

361

408

834

514

486

486

408

361

318

318

361

279

261

261

194

210

Aug.

210

2,530

799

1,360

907

633

486

408

361

340

1,670

633

602

572

459

384

340

340

318

361

261

261

243

361

486

408

384

279

279

279

Sept.

1,230

1,230

907

907

408

318

318

318

298

602

1,950

2,430

1,860

1,310

4,880

5,490

7,310

7,040

6,910

9,510

6,380

5,120

3,970

3,120

2,720

2,530

2,240

1,950

1,760

1,580

NOTE. Braced figures show mean discharge for periods indicated, estimated by comparison with flow 

of Des Moines River at Des Moines, Iowa.
UPPER MISSISSIPPI RIVER BASIN.

Monthly discharge of Raccoon River at Van Meter, Iowa,, for the year ending Sept,

30, 1921.

[Drainage area, 3,410 square miles.]

Month.

May __ .. __ . ... . ., __

July.........................................

September ___________________ .

Discharge in second-feet.

Maximum.

730 

1, 760 

1,060

6,910 

1,490 

1,760 

4,080 

5,120 

1,140 

2,530 

9,510

9,510

M'"iTniim279 

384

799 

730 

870 

572 

194 

210 

298

194

Mean.

359 

1,050 

638 

620 

2,180 

1,060 

1,100 

1,590 

1,860 

469 

562 

2,890

1,180

Per

square 

mile.

a 105

.308 

.187 

.182 

.640 

.311 

.323 

.466 

.545 

.138 

.165 

.848

.346

Run-off 

in inches.

0.12 

.34 

.22 

.21 

.67 

.36 

.36 

.54 

.61 

.16 

.19 

.95

4.73

ILLINOIS RIVER AT MORRIS, HI.

LOCATION. In sec. 9, T. 33 N., R. 7 E. third principal meridian, at highway 

bridge in Morris, Grundy County, 7 miles below station formerly maintained 

near Minooka, and 10 miles below mouth of Kankakee River.

DRAINAGE AREA. Indeterminate.

RECORDS AVAILABLE. October 1, 1919, to September 30, 1921, January 1, 1903, 

to December 13, 1904, records were obtained at a station near Minooka.

GAGE. Chain gage attached to highway bridge; installed March 1, 1916, by 

United States Weather Bureau; read by employee of the Weather Bureau. 

A staff gage at practically the same site and datum was read once daily 

under the direction of United States Engineer Corps, December 10, 1899, 

to November 30, 1900, and April 20, 1903, to December 11, 1904.

DISCHARGE MEASUREMENTS. Made from highway bridge.

 CHANNEL AND CONTROL. Bed composed of sand. Dam at Marseilles, 16 miles 

below gage, forms control.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 10.2 feet 

April 27 (discharge, 19,500 second-feet); minimum stage, 5.4 feet November 

29 and January 17 (discharge, 8,000 second-feet).

1919-1921: Maximum stage recorded, 17.8 feet April 21, 1920 (discharge, 

48,000 second-feet); minimum stage, 5.2 feet August 9, 1920 (discharge, 

7,600 second-feet).

A discharge of 67,800 second-feet was recorded at station near Minooka 

at 8 a. m. March 26, 1904 (gage beight, 78.25 feet).

REGULATION. Flow at this station includes the water diverted from Lake 

Michigan through the Chicago Drainage Canal. Operation 6f power plants 

at Lockport and Joliet causes considerable diurnal fluctuation at low and 

medium stages.

ACCURACY. Stage-discharge relation practically permanent except as slightly 

affected by ice December 28-31. Rating curve well defined between 8,000 

and 30,000 second-feet; fairly well denned between 30,000 and 55,000 

second-feet. Gage read to tenths once daily. Daily discharge ascertained 

by applying daily gage height to rating table except for period of ice effect 

for which it was estimated. Records fair.

COOPERATION. Gage-height record furnished by United States Weather Bureau.

The following discharge measurement was made by H. E. Grosbach: 

August 1, 1921: Gage height, 5.64 feet; discharge, 8,270 second-feet.
152 SURFACE WATER SUPPLY, 1921, PART V.

Daily discharge, in second-feet, of Illinois River at Morris, III., for the year ending Sept. SO, 1921.

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.

9,420

9,200

8,600

9,200

9,200

9,860

9,860

8,600

9,000

9,640

9,420

9,420

9,860

9,860

9,640

8,600

9,640

9,420

9,860

9,860

9,420

9,640

8,600

9,420

9,200

9,420

9,420

9,420

a

fiftft

Nov.

8,800

9,860

9,860

10,100

9,860

9,420

9,640

8,600

9,860

9,640

9,200

9,200

9,640

9,420

8,600

9,420

9,640

9,200

9,640

9,640

9,200

8,400

9,860

9,640

9,640

8,400

9,200

9,200

8,000

9,000

Dec.

a Oflft

9,200

9,420

8,800

9,420

8,600

8,800

9,640

9,860

9,860

8,200

10, 300

9,420

9,420

9,200

9,420

9,860

8,600

9,860

9,640

9,860

9,000

9,860

9,200

 9,200

Jan.

9,420

9,860

9,200

10,100

10,100

10,500

10,800

10.800

9 toft

9,420

9,200

9,200

9,000

» 9nn

8,000

9,420

9,420

9,000

9,000

10,500

9,200

9,640

9,640

9,860

10,100

9

Qfif\

10,500

8,800

Feb.

a

fiA(\

9

GA(\

»,640

9,420

9 Adft

10,500

9

J.OA

10,500

10,500

in ^nn

10 800

11 000

11,000

9,640

10,300

10, 100

10,800

9,640

9,640

10,100

9,420

9,860

10,300

8,800

Mar.

9 49f>

a 49f>

9,640

9,640

9,860

10,300

8,800

11,000

13,100

13,800

14,100

12,600

14,400

14,800

14,800

14,400

13,800

13,100

11,900

13,800

13,600

13,800

15,400

14,800

15,600

Apr.

14,800

13,800

12,900

11,900

11,900

11,900

11,200

11,400

11,700

11,400

10,500

11,000

11,000

11,000

11,400

11,400

15,100

15,600

16,100

16,100

15,600

15,400

17,700

19,000

18,000

18,500

19,500

19,300

18,500

18,200

May.

17,700

17,200

17,400

16,400

15,100

14,400

13,600

12, 600

11,900

11,900

11,900

11,700

11,700

11,400

10, 800

10, 100

10,800

10,500

10,500

10,300

9,640

10,300

9,860

9,640

9,860

9,860.

9,860

9,640

9,640

9,420

9,200

June.

9,860

9,860

8,800

11,000

9,860

9,640

9,860

9,860

9,640

9,420

9,200

9,000

8,800

8,800

9,000

9,000

9,000

8,800

8,800

9,000

9,000

9,000

9,000

9,000

9,000

9,860

9,860

9,420

9,420

9,860

July.

9,640

9,420

9,420

9,860

8,600

9,200

9,200

9,000

9,640

9,640

9,640

9,000

9,000

9,200

9,200

9,200

9,420

9,000

8,800

9,200

9,640

9,420

9,200

8,400

8,400

8,600

8,600

9,000

8,800

8,400

9,000

Aug.

8.600

9,000

9,420

9,200

9,420

9,420

9,200

8,600

8,600

9,000

8,800

8,800

8,800

9,200

8,800

9,000

9,000

8,800

9,000

8,800

8,800

9,000

9,200

9,200

9,420

9,640

0,100

9,640

9,420

9,420

9,860

Sept

9,420-

9,860

9, 000*

9,420

9,420-

9,640

9,860-

9,420-

9,860

9,860

10,300

9,420

9,640

10,300

9,640-

9,860

10,300-

11,400

11,000

11,400

11, 900

11,000

9,86O

9,860

9,860

9,200

9,200

9,200

9,000

9,420-

NOTE. Braced figure shows estimated mean discharge for period indicated.

Monthly discharge, in second-feet, of Illinois River at Morris, III., for the year

ending Sept. 30, 1921.

Month. Maximum.

9,860

10,100

10,300

10,800

11,000

1 ^ Rflft

19,500

Minimum.

8,400

8,000

8,000

8,800

10, 500

Mean.

9,380

9,330

9,680

10,100

10 onn

14,400

Month.

July-, 

Maximum.

17,700

11,000

9,860

10,100

11,900

19, 500

Minimum.

9,200

8,800

8,400

8,600

9,000

8,000

Mean.

11,800

9,350

9,120

9,130

9,920

10,400

ILLINOIS EIVEE AT PEORIA, ILL.

LOCATION. In sec. 2, T. 8 N., R. 8 E., at foot of Grant Street, Peoria, Peoria 

County, 3 ^ miles above station formerly maintained at Peoria & Pekin

Union Railroad bridge and 4| miles above mouth of Kickapoo Creek. 

DBAINAGE ABEA. Indeterminate. 

RECORDS AVAILABLE. March 8, 1910, to September 30, 1921; also March 10,

1903, to July 21, 1906, for station at Peoria & Pekin Union Railroad b'ridge 

GAGE. Vertical staff attached to wooden pile; read by employee of United

States Engineer Corps. 

DISCHARGE MEASUREMENTS. Made from downstream side of Lower Free bridge,

about 2 miles below gage. 

CHANNEL AND CONTROL. Bed of river, which forms control for medium and high

stages, composed of mud; may shift. Dam at Copperas Creek probably

forms control for lowest stages; permanent.
UPPER MISSISSIPPI EIVEB BASIN.

EXTREMES OF DISCI&.RGE. Maximum stage recorded during year, 16.45 feet 

May 2 (discharge, 25,300 second-feet); minimum stage, 9.50 feet October 2 

(discharge, 9,300 second-feet).

1910-1921: Maximum discharge recorded, 55,000 second-feet March 30

to April 2, 1913 (gage height, 22.4 feet); minimum discharge, somewhat less

than 7,250 second-feet during period December 11, 1916, to January 10,1917.

The highest known flood occurred in 1844, when a stage of about 26.6

feet on present gage was reached.

REGULATION. Flow at this station includes water diverted from Lake Michigan 

through the Chicago Drainage Canal. No diurnal fluctuation is noticeable.

ACCURACY. Stage-discharge relation practically permanent except as affected 

by ice during period December 26-31. Rating curve well defined between 

10,000 and 50,000 second-feet; extended beyond these limits. Gage read 

to half-tenths once daily. Daily discharge ascertained by applying daily 

gage height to rating table except for period during which stage-discharge 

relation was affected by ice for which it was estimated. Open-water records 

good; winter records poor.

COOPERATION. Gage-height record furnished by United States Engineer Corps.

The following discharge measurement was made by Grosbach and Williams. 

March 16, 1921: Gage height, 12.39 feet; discharge, 14,100 second-feet.

Daily discharge, in second-feet, of Illinois River at Peoria, III., for the year ending

Sept. 30, 1921.

Day.

1 

2..............

3 .. _ ...

4..............

5. ___

6- _ .. __ ...

7 

8 

9..............

10..............

11. .

12..............

13. 

14..............

15... ...........

16 

17 .. .

18..............

49 

20

21. ... ..

22

23 _

24 

25... . ......... .

26 

27 

28 .

29... j. .........

30 

31 ..........

Oct.

9,440

9,300

9,440

9,720

9,720

9,580

9,440

9,440

9,440

9,440

9,440

9,440

9,440

9,440

9,440

9,720

9,860

9,860

9,720

9,720

9,720

9,860

10,000

10,300

10,300

10,000

10,000

10,000

10,000

10,000

10,000

Nov.

10,000

9,720

10,000

10,200

10,300

10,300

10,300

10,400

10,300

10,300

10,300

10,300

10,300

10,000

10,300

10,300

10,200

10,000

10,000

10,000

10,000

10,000

10,300

10,300

10,300

10,300

10,300

10,300

10,300

10,300

Dec.

10,300

10,300

10,000

10,200

10,300

10,300

10,400

10,300

10,300

10,300

10,300

10,200

10,300

10,000

10,300

10,800

10,800

10,800

10,800

18,600

10,600

10,600

10,600

10,800

10,800

10,600

Jan.

10,900

11,200

11,200

11,500

11,600

11,800

11,800

11,800

11,800

11,600

11,800

11,600

11,500

11,500

11,200

11,000

10,900

10,900

10,600

10,600

10,800

11,200

11,200

11,400

11,500

11,200

11,200

11,000

11,200

11,500

11,200

Feb.

11,200

11,000

11,000

11,000

11,200

11,200

11,500

11,200

11,200

11,200

11,200

11,200

11,200

11,400

11,200

10,900

11,200

11,500

11,500

11,500

11,200

11,000

11,200

11,200

11,200

11,000

13,200

10,900

Mar.

10,900

10,900

11,000

10,800

10,600

11,200

11,,200

11,200

11,500

11,200

11,800

12,600

13,000

13,400

13,600

14,200

14,200

15,000

15,000

14,800

14,600

15,400

15,400

15,400

15,400

15,900

15,900

16,900

16,200

16,200

16,400

Apr.

16,400

16,400

16,900

16,400

16,400

16,200

15,900

16,400

15,600

15,900

14,800

14,600

14,800

14,600

14,400

15,900

15,200

14,600

14,800

15,000

15,000

16,600

17,200

17,200

17,400

18,900

20,100

21,600

22,500

23,700

May.

24,400

25,100

25,100

25,100

24,800

24,400

24,000

23,700

23,100

22,500

21,900

21,300

20,700

20,100

19,500

18,900

18,200

17,900

17,400

16,900

16,400

15,600

15,400

15,000

14,800

14,600

14,600

14,400

14, 200

14,200

13,800

June.

13,800

13,400

13,800

14,200

13,800

13,600

13,400

13,000

12,800

12,600

12,600

12,600

12,400

12,200

11,800

11,600

11,500

11,500

11,500

11,200

11,000

10,900

10,900

10,800

10,800

10,600

10,600

10,800

10,800

10,800

July.

i 10, 600

10,600

10,400

10,300

10,400

10,300

10,300

10,300

10,300

10,300

10,200

10,200

10,000

10,000

10,300

10,200

9,720

10,000

10,200

10,200

10,000

10,000

10,000

10,000

9,860

9,720

9,580

9,860

10,000

9,720

9,720

Aug.

9,580

10,000

10,000

10,200

10,000

10,300

10,200

10,000

10,000

9,720

10,000

10,000

9,860

10,200

9,860

9,720

9; 580

9,720

9,720

9,720

9,860

9,720

9,720

10,300

10,300

10,200

10,200

10,000

10,000

10,000

10,000

Sept.

10,000

9,860

10,200

10,600

10,900

10,900

10,900

10,900

10,800

10,900

11,000

11,200

11,400

11,400 n,2oa

11,200

11,600

12,400

12,600

12,800°

13,000

13,000

13,600

13,400

13,600

13,400

13,000

13,000

12,600

13,000

NOTE. Braced figure shows estimated mean discharge for period indicated.

Monthly discharge, in second-feet, of Illinois River at Peoria, III., for the year

ending Sept. 30, 1921.

Month.

February... .....

March.. 

AprD... ....... ..

Maximum.

10,300

10,400

10, 803

11,800

11,500

23,700

Minimum.

9,300

9,720

10.000

10,600

10,900

10 900

14^400

Mean.

9,720

10,200

10,500

11,300

11,200

16,700

Month.

July.... ..

Maximum.

25,100

14,200

10,600

10,300

13,600

25,100

Minimum.

13,800

10,800

9,580

9,580

9,860

9,300

Mean.

v 19,300

12,000

10,100

9,960

11,800

12,200
154 SURFACE WATER SUPPLY, 1921, PART V.

ttllNOIS BI7EB AT BEARDSTOWN, HI. 

LOCATION. In sec. 15, T. 18 N., R. 12 W., at highway bridge on State Street, 

Beardstown, Cass County, 1,000 feet below Chicago, Burlington & Quincy 

Railroad bridge, 5 miles above mouth of Crooked Creek and 9| miles below 

mouth of Sangamon River.

DRAINAGE AKEA. Prior to January 17, 1900, 23,445 square miles; since that 

date natural run-off increased by diversion from St. Lawrence River basin 

through Chicago Drainage Canal.

RECORDS AVAILABLE. Discharge record, October 1, 1920, to September 30, 1921. 

Gage readings obtained under direction of United States Engineer Corps, 

October 28, 1878, to May 30, 1881, November 9, 1881, to June 26, 1884, 

and January 5, 1885, to June 30, 1891. Gage readings obtained under 

direction of United States Weather Bureau June 30, 1891, to September 

30, 1921. Gage-height record, 1878 to 1904, published in House Document 

263, Fifty-ninth Congress; since 1904 gage heights appear in United States 

Weather Bureau publications.

GAGE. Vertical staff attached to pile on inside of cribbing, about 40 feet above 

center span of highway bridge; read by employee of United States Weather 

Bureau.

DISCHARGE MEASUREMENTS. Made from downstream side of bridge to .which 

gage is attached.

CHANNEL AND CONTROL. Bed composed of sand and mud. Except at very 

high stages, control is formed by LaGrange dam about 11 miles downstream; 

probably permanent. Point of zero flow at gage height, about 5.4 feet.

EXTREMES OP DISCHARGE. Maximum stage recorded during year, 14.6 feet May 

4-6 (discharge, 34,800 second-feet); minimum stage, 7.7 feet December 26 

(discharge, 9,640 second-feet).

Maximum stage recorded at this station, 21.8 feet April 5, 1913 (discharge not determined). According to the United States Engineer Corps, 

the flood of 1844 reached a stage of 22.2 feet on present gage, and the discharge on April 4, 1904, was determined as 115,000 second-feet (gage height, 

20.0 feet).

ICE. Stage-discharge relation only slightly affected by ice.

REGULATION. Flow at this station includes flow of Chicago Drainage Canal. 

The stage is occasionally slightly affected by backwater from Mississippi 

River and from Crooked Creek.

ACCURACY. Stage-discharge relation permanent; not affected by ice. Rating 

curve well defined between 10,000 and 35,000 second-feet. Gage read to 

tenths once daily. Daily discharge ascertained by applying daily gage height 

to rating table. Records good.

COOPERATION. Gage-height record furnished by United States Weather Bureau.

Discharge measurements of Illinois River at Beardstown, III., during the year

ending Sept. 30, 1921.

Date.

Mar. 14

Apr. 1323-

Made by 

L. O. Williams a .......

 ..do -. .........

Gage

Feet. 

9.28

10.70

11.84

Discharge.

Sec.-ft. 

15, 700

20,900

22,100

Date.

Aug. 1

Made by 

L. O. Williams...... _

 do--- __ ....

sa

Feet. 

14.57

8.07

Discharge.

Sec.-ft. 

34,200

10,700

« Engineer, United States Public Health Service.
MISSISSIPPI KIVER 8A8IH. 155

Daily discharge, in second-feet, of Illinois River at Beardstown, III., f&r the year

ending Sept. SO, """

Day.

1 

2.... ..........

3... _____ ..

4 

5 

6 _____ ....

7 __ ..........

8 

9 

10...... ........

11 . 

12. _ . _ ......

13 

14.... .....

15 _ ..... ......

16 ___ .

17 .........

18..... _ .. _ .

19.. _ .........

20.. __ 

21 _ ........

22 .

23.. 

24..... ......

25 .

26.... ......

27 ...... 

28 

29 

80 ......

81 

Oct.

10,400

10,400

10,400

10,000

10,000

10,000

10,000

10,000

10,000

10,000

10,000

10,000

10,000

10,000

10,000

10,000

10,000

10,000

10,000

10,000

10,000

10,400

10,400

10,700

11,100

11,100

10,700

10,700

 10,400

10,400

in Ann

Nov.

10,700

10,700

10,700

10,700

10,700

10,700

10,700

10,700

10,700

10,700

10,700

10,700

10,700

10,700

10,700

10,700

10,700

10,700

10,700

10,700

10,700

10,700

10,700

10,700

10,700

10,700

10,700

10,700

10, 700

10,700

Dec.

10,700

10,700

10,700

10,700

10,700

10,700

10,700

10,700

10,700

10,700

10,700

10,700

10,700

10,700

11,100

11,100

11,500

11,500

11,500

11,500

11,500

11,500

11,500

11,100

10,000

9,640

10,400

10,700

11,100

12,200

11,800

Jan.

11,100

11,500

11,800

11,800

12,600

12,600

12,900

12,900

12,900

12,900

12,900

12,900

12,600

12,600

12,600

12,200

12,200

12,200

12,200

11,800

12,600

12,600

12,900

12,600

12,900

12,600

12,600

12,200

12,600

12,600

17 onn

Feb.

12,600

12,600

12,900

12,900

12,900

12,900

19 arm

12,900

12,600

12,600

12,600

12,600

12,600

12,900

12,900

12,900

12,900

12,600

12,600

12,600

12,600

12,600

12,600

12,600

12,600

12,600

12,600

12,600

Mar12,600

12,200 19 onn

12,200

12,200

12,200

19 finn

13,300

15,100

15,800

16,200

15,800

15,500

15,500

15,500

16,200

16,600

16,600

16,600

16,600

17, 700

17,700

17,700

17, 700

17, 700

18,000

18,400

18,800

19,500

19,900

20,200

Apr.

21,300

21,700

22,800

23,500

23,900

24,200

24,200

24,200

23,500

22,800

22,000

21,300

20,600

20,600

20,200

21,000

21,700

22,000

22,400

22,400

22,000

22, 800

24,200

25.000

25,300

26,400

28,200

30,100

31,200

31,'900

May.

32,600

33,700

34,500

34,800

34,800

34,800

 3A cnn

34,100

33,400

32,600

32,300

31,500

30,800

30,100

29,300

28,200

27,500

26,400

25,700

25,000

23,900

23,100

22,000

21, 300

20,600

20,200

20,200

19,900

19,900

19,100

18,800

June.

18,000

17,700

16,600

15,500

18,800

19,900

19,500

18,800

18.000

17,700

17,700

17,300

16,900

16,200

15,800

16,900

16,200

15,500

15,100

14,700

15,800

15,500

15,100

14, 700

14,400

14,700

15,100

15,500

15,500

15,500

July.

15,100

14,400

14,000

14,000

12,900

12,200

11,800

12,200

12,200

11,800

11,500

11,100

10,700

10,700

10,700

10,700

10,700

10,700

11,500

11,800

11,500

11,500

11,100

11,100

11,500

12,200

11,100

11,100

11,100

10,700 10; 700

AHg.

11,100

11,800

14 4nn

14,000

13,600

13,300

12,900

12,600

12,600

12,200

11,500

11,500

11,100

11,100

11,100

10,700

12,200

12,600

12,200

11,800

11,500

11,100

10,700

10,700

10,700

10,700

10.7QO

10,700

10,700

10,400

10,700

Sept.

10,700

10,700

10,700

11,100

15,100

16,200

16,200

15,800

15,800

14,700

15,100

15,100

14,700 14 4nn

14,400

15,800

15,800

15,500

15,100

16,900

17,300

16,600

16,200

15,800

15,500

16,600

16,200

15,800

15,500

15,500

Monthly discharge, in second-feet, of Illinois River at Beardstown, III., for the 

year ending Sept. 30, 1921.

Month. Maximum.

11,100

10,700

12,200

12,900

12,900

31,900

Minimum.

10,000

10, 700

9,640

11,100

12,600

20,200

Mean.

10,200

10,700

10,900

12,"500

12, 700

23,800

Month.

July.- .....

Maximum.

34,800

19,900

15,100

14,400

17,300

34,800

Minimum.

18,800

14,400

10,700

10,400

10,700

9,640

Mean.

27,600

16,500

11,800

11,700

15,000

14,900

KANKAKEE RIVER AT MOMENCE, ILL.

LOCATION. In sec. 24, T. 31 N., R. 13 E., at highway bridge in Momence,

Kankakee County, half a mile below Chicago & Eastern Illinois Railroad

bridge and 1$4 miles above Tower Creek. 

DRAINAGE ABEA. 2,340 square miles. 

RECORDS AVAILABLE. February 24, 1905, to July 20, 1906; December 3, 1914,

to September 30, 1921.

GAGE. Chain gage attached to bridge over left channel; read by Henry Hanson. 

DISCHARGE MEASUREMENTS. Made from downstream side of bridge or by

wading. 

CHANNEL AND CONTROL. Bed composed of coarse gravel; may shift. River at

gage divided into two channels by an island. Aquatic plants occasionally

grow in bed of river during summer. 

EXTEEMES OF DiscHAEGE. Maximum stage recorded during year, 5.14 feet

December 27 (stage-discharge relation affected by an ice jam); maximum

discharge, 2,970 second-feet, occurred at gage height 3.29 feet at 8 a. m.

March 25; minimum stage, 1.41 feet August 31 and September, 1 (discharge

342 second-feet). 

81182 24t WSP 525 11
156 STJBFACE WATER SUPFLY, 1921, PART V.

1905-6 and 1915-21: Maximum stage recorded, 7.75 feet January 4, 1919 

(discharge not determined because of backwater from ice); maximum openwater stage, 6.4 feet January 22, 1916 (discharge, from extension of rating 

curve, 12,600 second-feet); minimum stage, 1.37 feet September 1, 16, and 

17, 1919 (discharge, 306 second-feet).

ACCURACY. Stage-discharge relation not permanent; seriously affected by ice 

December 23 to January 4 and January 17-20; affected by growth of aquatic 

plants May 2 to July 10 and September 1-30. Standard rating curve well 

defined between 400 and 2,500 second-feet. Gage read to hundredths 

once daily. Daily discharge ascertained by applying daily gage height to 

rating table except for periods during which stage-discharge relation was 

affected by growth of aquatic plants, for which it was ascertained by the 

indirect method for shifting control, and except for periods during which 

stage-discharge relation was affected by ice, for which it was ascertained by 

means of gage heights, observer's notes, and weather records. Open-water 

records good, except those for May and June, which are fair; winter records 

poor.

Discharge measurements of Kankakee River at Momence, III., during the year

ending Sept. 30, 1921.

[Made by H. E. Qrosbach.J

Date.

Feb. 14 

Gage 

height.

Feet. 

2.67

2.32

Discharge.

Sec.-ft. 

1,800

1,180

Date.

July 14... ....... .............

hSl

Feet. 

1.58

1.64

Discharge.

Sec.-ft. 

480

502

« Stage-discharge relation affected by growth of aquatic vegetation.

Daily discharge, in second-feet, of Kankakee River at Momence, III., for the year

ending Sept. 30, 1921.

Day.

1 _____ . ...

2 _ . ___ ....

3 

4 ____ ......

. 5 _ ... ____ .

6..... ..

7..............

8..............

9..... .........

10.. .........

11 

12 _______ ..

13..............

14..............

15. 

16.... _ . __ .

17 .. _.

18.. _ .........

19..............

20...... .....

21..............

22. _ ..... ..

23........ ......

24..... ....... ..

25..............

26

27..............

28..............

29.... ...........

30..............

31... ...........

Oct.

418

444

461

452

436

427

418

418

410

410

410

402

395

395

388

402

410

418

418

418

418

418

418

410

427

436

478

478

495

542

590

Nov.

590

571

590

690

590

590

590

590

590

640

640

590

380

590

533

542

571

590

590

580

580

590

590

590

590

590

590

580

571

590

Dec.

580

590

590

640

7<Ui

800

855

910

910

01(1

910

910

855

970

1,030

QI n

910

970

Qin

son

855

910

920

Jan.

.

[2,000

1

2,030

1,860

1,550

i <tsn

1,480

i 34n

1,280

1,220

1,220

1,340

1,280

1,030

11,050

1,150

1,150

1,410

1,410

1,410

1,340

1,340

1 280

1,220

1,280

1,280

Feb.

1,220

1,220

1,220

1,220

1,410

1,410

1,550

1,620

1,780

1 860

1,940

1,860

1,860

1,860

1,780

1,780

1,700

1,550

1,550

1,410

1,410

1,340

1,280

1,340

1,090

1,150

1,150

1,150

Mar.

1,150

1,150

1,150

1,150

1,150

1,150

1,220

1,280

2,200

2,200

2,290

2,380

2,200

2,200

2,200

2,200

2,200

2,120

2,030

2,030

2,770

2,770

2,770

2,570

2,970

2,770

2,970

2,770

2,570

2,570

2,380

Apr.

2,290

2,290

2,200

2,120

2,030

1,940

2,030

1,940

1,700

1,700

1,620

1,620

1,620

1,620

1,700

1,780

2,290

2,380

2,380

2,290

2,200

2,120

2,380

2,380

2,380

2, 290

2,200

2,380

2,770

2,570

May.

2,290

2,380

2,290

2,200

2,120

2,030

1,940

1,780

1,780

1,620

1,480

1,480

1,410

1,340

1,280

1,280

1,280

1,280

1,220

1,150

1,150

1,090

1,030

970

910

910

910

855

855

800

855

June.

910

910

910

910

855

855

800

745

690

Ron

745

690

640

640

590

580

542

524

542

542

562

552

552

533

524

542

562

640

640

640

July.

640

690

640

640

571

524

533

542

514

504

524

514

504

486

478

470

461

444

444

418

418

410

410

436

402

402

380

- 365

365

358

342

Aug.

342

427

461

495

504

495

452

410

402

365

395

402

436

418

418

436

227

418

514

590

745

800

745

745

600

640

690

690

690

690

Sept.

640

640

590

690

640

640

640

590

590

KQft

640

£90

640

745

745

800

800

745

690

640

640

590

590

427

533

563

563

552

552

640

NOTE. Braced figures show mean discharge for periods indicated.
Knhkakee River al>Moittenc4i,'Ilk, for the ye&r ending 

30,1921! x

[Drainage area, 2,340 square miles.]

Month.

Deeember.- _________________

January... .... ___ -. ____ .. .......

March _ ... .................................

April......... ..............................

July.........................................

September _ _ . ___________ .....

Discharge in second-feet.

Maximum.

590 

690

1,940 

2,970 

2,770 

2,380 

910 

690 

800 

800

2,970

Minimum.

388 

633 

580

1,090 

1,150 

1,620 

800 

524 

342 

342 

427

342

Mean.

434 

590 

863 

1,410 

1,490 

2,110 

2,110 

1,420 

669 

478 

525 

628

1,060

Per 

square 

mile.

0.185 

.252 

.369 

.603 

.637 

.902 

.902 

.607 

.286 

.204 

.224 

.268

.453

Run-off" 

in inches, -

0.21 

.28 

.43 

.70 

.66 

1.04 

1.01 

.70 

.32 

.24 

.26 

.30

6. 15

KANKAKEE RIVER AT OUSTER PARK, HI.

LOCATION. In sec. 19, T. 32 N., R. 10 E., at Wabash Railroad bridge in Ouster 

Park, Will County, half a mile above Horse Creek and 15 miles below dam 

and power plant at Kankakee.

DRAINAGE AREA. 4,870 square miles.

RECORDS AVAILABLE. November 6, 1914, to September 30, 1921.

GAGE. Chain gage attached to bridge; read by J. H. Swords.

DISCHARGE MEASUREMENTS. Made from upstream side of bridge.

CHANNEL AND CONTROL. Bed composed of solid rock strewn with boulders and 

gravel. Right half of channel deep with fissures in bed; left half shallow; 

somewhat shifting.

EXTREMES OP DISCHARGE. Maximum stage* recorded during year, 8.30 feet 

March 30 (discharge, 7,000 second-feet); minimum discharge, 392 second-feet 

July 25.

1914-1921: Maximum stage recorded, 14.0 feet February 24, 1918 (discharge not determined because of backwater from ice); maximum openwater stage recorded, 13.45 feet April 20, 1920 (discharge, 24,300 secondfeet); minimum stage, 4.09 feet November 15, 1914 (discharge not determined); minimum mean daily discharge, 250 second-feet November 15 and 

18, 1914.

ICE. Stage-discharge relation seriously affected by ice at times.

REGULATION. Operation of power plant at Kankakee causes slight fluctuation, 

at gage.

ACCURACY. Stage-discharge relation changed slightly during year; affected 

by ice for short periods during winter and by vegetation during summer. 

Two fairly well defined rating curves used, applicable respectively, October 

1 to May 25 and May 26 to September 30. Gage read to hundredths twicedaily. Daily discharge ascertained by applying mean daily gage height to 

rating table except for periods during which stage-discharge relation wa» 

affected by ice for which it was ascertained as indicated in footnote to table 

of daily discharge, and except for period May 1 to August 31 for which it 

was ascertained by the shifting-control method. Records fair except those 

for periods of ice effect and for very low stages, for which they are poor.
; 1&&, PART V.

Discharge measurements of Kankakee River at Custer Park, III,, during the

ending Sept. SO, 1921.

Date.

Feb. 9

Sept. 16

Made by 

Grosbach and Williams <" ____________________ . .........

H. E. Grosbach. _.._.__ _._____._ .. . . ..........

. .do...... __. ___ .

Gage 

height.

Feet. 

6.63

65.48

5.64

Disoharge.

Sec.-ft. 

2,890

936

c 1,260

a Engineer, TJ. S. Public Health Service.

& Stage-discharge relation affected by growth of aquatic vegetation in channel.

c Discharge corrected for changing stage = 1,210 second-feet.

Daily discharge, in second*feet, of Kankakee River at Custer Park, III., for the year

ending Sept. SO, 1921.

Day.

1 . . -

2 __ 

3 

4.: __ 

5.... ..........

6 __

7 

8. -. 

9 

10 

11.*. __ . 

12.,, _

13 _ - _ 

14 __ ..... . 

IS 

16 

17 __

18 

19 

20 - -

21 

22 

23 

24 

25 

Err........ 97

28 

29. _ 

3001

Oct.

492

600

525

430

562

1 520

492

525

525

525

492

492

492

525

525

492

492

492

492

492

492

460

460

430

562

525

562

562

Nov.

685

642

642

600

. 685

685

685

685

685

642

732

685

6W

732

642

685

600

642

685

600

642

685

685

600

642

642

600

600

642

562

Dee.

600

642

600

685

835

890

890

1,010

890

1,010

950

950

950

1,010

1,080

1,010

950

950

950

780

950

Jan.

j

U.500

2,400

2,580

2,760

2,400

1,980

1,940

1,890

1,730

1,500

2,580

1,500

1,500

1,650

1,890

1,980

2,230

1,650

1,980

1,730

1,730

1,730

Feb.

1,730

1,650

1,650

1,730

1,810

1,980

2,230

2,580

2,760

2,950

3,150

2,950

2,960

2,760

2,580

2,580

2,400

2,230

2,230

1,980

1,890

1,810

1,730

1,650

1,570

1,500

1,500

1,420

Mar.

1,420

1,500

1,500

1,420

1,500

1,500

1,570

1,890

2,950

3,770

4,440

4,670

4,210

4,210

4,440

4,440

3,990

3,770

8,350

3,350

4,010

4,670

4,210

4,210

4,910

5,650

5,910

6,040

6,170

7,000

6,720

Apr.

5,650

4,910

4,210

3,770

3,560

3,150

2,950

2,760

2,580

2,760

2,580

2,580

2,580

2,580

2,580

3,510

4,440

5,650

6,170

5, 910

5,150

4,670

4,910

5,150

5,150

5,150

5,150

4,910

4,910

5,650

May.

5,910

6,170

5,400

4,670

4,210

3,770

3,350

3,150

2,760

2,580

2,400

2,230

2,230

2,060

1,980

1,890

1,810

1,730

1,650

1,570

1,420

1,350

1,280

1,280

1,140

1,200

1,200

1,200

1,270

1,270

1,270

June.

1,200

1,270

1,270

1,340

1,340

1,200

1,130

1,060

1,000

940

940

880

820

820

770

720

670

670

770

880

720

820

820

770

770

720

720

720

820

880

July.

880

880

820

880

880

720

670

670

670

670

720

670

670

620

620

580

540

540

540

580

540

540

540

484

392

460

468

540

468

484

468

Aug.

452

670

540

580

620

770

620

500

520

540

540

492

460

580

770

770

670

580

540

 580

580

620

770

1,000

880

880

770

670

770

820

770

Sept.

770

820

770

720

770

720

770

880

720

770

720

880

770

880

1,200

1,270

1,480

1,890

2,610

2,610

1,980

1,410

2,800

1,000

770

820

770

820

770

1,000

NOTE. Stage-discharge relation affected by ice Dec. 21 to Jan. 3 and'Jan. 14-21; discharge ascertained 

by means of gage heights, observer's notes, and weather records. Gage not read, discharge estimated, Oct. 

6-9. Gage not read, discharge interpolated, Oct. 20, Jan. 9, Feb. 17, Mar. 21, 28, Apr. 16, and Aug. 9. 

Braced figures show mean discharge for periods indicated.

Monthly discharge of Kankakee River at Custer Park, III., for the year ending

Sept. SO, 1921.

[Drainage area, 4,870 square miles.]

Month.

April .-. - -

]\&&y *-

July 

September 

Discharge in second-feet.

Maximum.

600 

732

2,760 

3,150 

7,000 

6,170 

6,170 

1,340 

880 

1,000 

2,800

7,000

Minimum.

430 

562 

600

1,420 

1,420 

2,580 

1,140 

670 

392 

452 

720

392

Mean.

510 

651 

906 

1,820 

2,140 

3,850 

4,190 

2,430 

915 

619 

656 

1,140

1,650

Per 

square 

mile.

a 105 

.134 

.186 

.374 

.439 

.790 

.860 

.499 

.188 

.127 

.135 

.234

.339

Run-off 

in inches.

a 12

.15 

.21 

.43 

.4ft 

.91 

.96 

.6& 

.21 

.15 

.16 

.26

4.60
UPPER MISSISSIPPI RIVER BASIN. 159 

DfiS PLAINES KIVBR AT ilMONT, HI.

LOCATION. In sec. 20, T. 37 N., R. 11 E., at concrete highway bridge on 

Stephens Street, a quarter of a mile north of main section of Lemont, Cook 

County, and 8 miles above junction of Des Plaines River and Chicago 

Drainage Canal.

DRAINAGE ABEA. 705 square miles.

RECORDS AVAILABLE. November 4, 1914, to September 30, 1921.

GAGE. Enameled staff gage attached to bridge; read by William Week, jr.

DISCHARGE MEASUREMENTS. Made from downstream side of bridge or by 

wading below dam.

CHANNEL AND CONTROL. A concrete dam, forming a new control and changing 

former stage-discharge relation, was built across channel about 500 feet 

below gage August 20, 1916; permanent except for slight repairs in August, 

1920.

EXTREMES OP DISCHARGE. Maximum stage recorded during year, 5.2 feet at 

8.30 a. m. April 28 (discharge, 2,620 second-feet); minimum discharge, no 

flow, July 26-31.

1915-1921: Maximum stage recorded, 6.6 feet February 16, 1918 (discharge not determined because of backwater from ice); maximum openwater stage recorded, 6.5 feet March 18, 1919 (discharge, 5,520 second-feet); 

minimum discharge, no flow, September 7, 8, 14-21, and 24-27, 1919, and 

July 26-31, 1921.

DIVERSIONS. During high water part of flow spills over into Chicago Drainage 

Canal at Willow Springs, 7 miles above station. Overflow during 1921 was 

probably negligible. See under "Diversions" and "Accuracy" in the 

description of this station in Water-Supply Paper 505, p. 246.

ACCURACY. Stage-discharge relation practically permanent; not affected by ice. 

Rating curve well defined between 50 and 5,500 second-feet; fairly well 

defined below 50 second-feet. Gage read to half-tenths once daily. Daily 

discharge ascertained by applying daily gage height to rating table. Records 

good for medium and high stages; fair for low stages.

Published results for discharge in second-feet per square mile and run-off 

in inches for months in which high stages occurred during the period 1915 

to 1918 are incorrect, owing to fact that overflow into Chicago Drainage 

Canal was not considered in making the computations. See under "Diversions" in the description of this station in Water-Supply Paper 505, p. 246.

Discharge measurements of Des Plaines River at Lemont, III,, during the year ending

Sept. 30, 1921.

[Made by H. E. Qrosbach.]

Date.

Sept. 15........ ...... .. -........ ......... .. . . ........ . ..... . ..

Gage

height.

Feet. 

2,50

2.60

Discharge.

Sec.-/*. s5.0

31.6

Estimated.
SUKFACE SUPPLY, 1921, PAKT V.

Daily discharge, in second-feet, of Des Plaines River at Lemont, III., for the year

ending Sept. 30, 1921.

Day.

1

^.. ............

3 .... ...

4 

5 - ,...... -

« --_-

7 - ., 

8 -

9..............

10 

U. __ _.

12 ,. _ .....

13 

14.... ...

15 '

16.... __ - _ - 

17. __ 

18 . ____ ---

19

20--.-- -.--

21.-; 

22 

23 -------

24

25

26 

 27. 

28,.... 

29. 

30 . 

31 .- -

Oct.

2

2

2

6

6

2

2

2

2

2

2

2

2

2

2

6 

18 

18

18

6

6

6

6

18

31

31

48

48

31

18

18

Nov.

6

6

6

18

6

18

18

31

31

18

18

18

18

18

18

18 

18 

6

6

6

6

6

6

6

6

6

6

6

6

18

Dec.

18

6

.5

6

18

31

31

31

18

18

18

18

18

31

31

68 

68 

68

68

68

68

68

48

48

48

48

31

48

18

18

18

Jan.

18

48

68

68

93

93

68

48

48

37

31

31

48

31

31

31 

31 

31

31

31

18

18

31

40

40

48

31

31

31

18

18

Feb.

6

18

31

48

31

48

48

48

31

40

48

68

60

48

31

18 

31

31

31

48

68

68

48

48

31

31

68

Mar.

68

31

31

48

48

68

68

120

180

245

315

350

385

500

580

1,080 

1,080 

980

S30

835

700

540

540

460

500

540

620

700

620

540

500

Apr.

385

385

315

245

245

245

212

180

150

120

120

180

180

180

245

315 

540 

620

745

745

1,140

1, 48,0

1,910

2,310

2,460

2,460

2,460

2,620

2,620

2,460

May.

2,310

2,040

1,780

1,360

980

745

540

460

422

385

315

315

280

245

212

180 

180 

180

150

150

120

120

120

93

93

93

93

93

93

93

93

June.

68

68

68

68

68

68

48

48

48

48

68

48

68

68

48

48 

48 

48

31

31

31

31

18

6

6

18

31

48

48

48

July.

48

48

31

31

31

31

31

31

18

18

18

18

18

18

18

18 

6 

6

18

18

6

6

6

2

.5

0

0

0

0

0

0

Aug.

0.5

2

2

6

6

6

2

2

2

2

2

6

6

6

6

6 

6 

18

12

6

6

18

31

31

18

18

18

18

18

18

18

Sept.

18

6

6

18

31

18

18

31

31

18

31

31

31

31

18

31

48 

31

31

31

48

48

48

68

68

68

68

- 48

68

180

Monthly discharge of Des Plaines River at Lemont, III., for the year ending Sept.

30, 1921.

[Drainage area, 705 square miles.]

Month.

November _ ___ ... _ .... _ ........

January. _____ ........ ___ _ . __ .

February.. __ __ .... _ .. ....... .

March _ . _____ . __ . ______ ....

June- . __ _________ _____ __ _ 

July ................ ........ ......

August...... ___ . __ _

September....... _ ____ .. ....

The year _____________

Discharge in second-feet.

Maximum.

48 

31 

68 

93 

68 

1,080 

2,620 

2,310 

68 

48 

31 

180

2,620

Minimum.

2 

6 

5.5 

18 

6 

31 

120 

93 

6 

0 

.5 

6

0

Mean.

11.8 

12.5 

35. 3 

40.0 

41.1 

458 

942 

462 

46.4 

16.0 

10.2 

40.7

178

Per 

square 

mile.

0.017 

.018 

.050 

.057 

.058 

.650 

1.34 

.655 

.066 

.023 

.014 

.058

.252

Run-off 

in inches.

0.02 

.02 

.06 

.07 

.06 

.75 

1.50 

.76 

,07 

.03 

.02 

.06

3.42

DES PIAIWES RIVER AT J01IET, HI.

LOCATION. In NE. \ sec. 9, T. 35 N., R. 10 E., at Jackson Street Bridge, Joilet

Will County, 1,200 feet upstream from Cass Street Bridge. 

DKAINA«E AEEA. Indeterminate. 

EEOOBDS AVAILABLE. December 4, 1914, to September 30, 1921; from Cass

Street Bridge, September 5 to December 19, 1914. 

GAGE. Cmrley 7-day water-stage recorder installed December 3, 1914. Chain

ga@e attached to upstream side of Cass Street Bridge used September 5 to

December 19, 1914. 

DIBGHAEGE MEASUREMENTS. Made from upstream side of Cass Street Bridge.
UERBB MISSISSIPPI RIVEE BASIN. 161

CHANNEL AND CONTROL. Channel excavated in solid rock, with a concrete wall 

on either side; permanent.

EXTREMES OP DISCHARGE Maximum mean daily discharge during days of 

record for the year, 11,100 second-feet, April 26 and 28; minimum mean 

daily discharge, 6,070 second-feet, February 13.

1914-1921: Maximum mean daily discharge during days of record, 18,400 

second-feet, March 18, 1919; minimum mean daily discharge, 5,420 secondfeet, April 25, 1915.

DIVERSIONS. .Water is diverted to the Illinois and Michigan Canal at Dam 

No. 1, about 100 feet above gage.

REGULATION. Flow past gage is largely regulated by operation of power plant 

of Chicago Sanitary District at Lockport, which utilizes the flow of Chicago 

Drainage Canal and, to a lesser extent, by operation of Economy Light & 

Power Co.'s plant, about 100 feet above gage.

ACCURACY. Stage-discharge relation permanent; not affected by ice. Rating 

curve well defined; verified by discharge measurement in September, 1922. 

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 as noted in footnote to table of daily discharge. Records 

excellent. 

No discharge measurements were made at this station during the year.

Discharge measurements of Illinois and Michigan Canal at Joliet, III., during the 

years ending Sept. SO, 1920 and 1921.

Date.

1919-20. 

Oct. 3

27

May 10

Made by 

Dean and Kane... ...........

Discharge.

Sec.-ft. 

294

359

302

Date.

1921.

Made by Discharge.

Sec.-ft. 

366

Daily discharge, in second-feet, of Des Plaines River at Joliet, III., for the year

ending Sept. 30, W21.

Day.

1.. __

2 

3 

4.......

5 

6.^ 

7.......

8 

9. ...

10.......

11 

12 

13 

14 

15 

16 

17 __

18 

19 

20.......

21 

22 

23. 

24 

25 

26 

27 

28 

29 

30. _ 

31 _ . _

Oct.

8,640

8,660

7,260

8,660

8,600

8,820

9,160

7,690

8,520

7,050

9,140

8,720

8,740

9,080

9,330

9,010

7,640

9,150

9,000

9,400

9,240

8,840

8,960

7,400

8,970

8,850

8,840

8,940

8,760

9,040

7,430

Nov.

8,710

8,480

9,090

8,560

8,040

8,770

8,280

9,960

9,830

9,170

9,520

9,730

8,460

6,940

8,780

8,670

8,430

8,460

8,270

8,260

7,060

9,080

9,140

8,900

7,900

8,500

8,390

6,880

8,620

8,420

Dec.

8,400

8,650

7,940

8,620

7,320

9,260

7,160

8,780

8,880

8,670

8,860

6,730

8,700

8,680

7,760

8,220

8,200

8,660

7,000

9,020

8,320

8,330

8,250

"8,000

'8,000

Jan.

8,000

"6,700

8,100

7,920

7,920

8,150

8,030

8,250

7,150

8,460

8,280

8,290

8,380

7, 860 '

7,550

6,660

8,360

8,190

8,180

7,500

7,980

7,460

6,980

8,320

8,630

8,550

8,550

8,080

7,180

6,250

8,450

Feb.

8,020

7,780

7,830

7,770

 7,450

6,630

8,180

8,030

7,780

 7,440

'6,880

"6,220

" 6, 070

 7,950

"7,920

7,680

7,930

7,760

7,820

7,000

8,290

8,210

8,390

7,660

7,890

« 7, 430

"6,500

8,130

Mar.

8,000

8,030

8,140

"8,000

"7,640

6,760

"8,540

"8,400

"8,520

8,210

8,380

7,620

7,310

8,720

9,200

9,480

9,440

9,260

8,560

7,430

9,030

8,90Q

8,580

"8,530

"7,000

" 7, 100

7,190

7,840

9,110

8,520

8,140

Apr.

7,940

7,410

6,560

'S.OOO

"6,580

8,030

7,960

8,170

8,080

"7,960

10,300

"9,430

 8,680

8,650

8,560

'8,840

' 9, 120

"9,400

9,610

10,700

11,100

11,000

11, 100

10,800

9,690

May.

9,760

S QCfl

10,200

9,470

a iRO

S Qftft

7,950

7,640

8,220

8,740

8,580

8,670

8,300

7,410

A QQft

8,290

8,080

8,290

7,910

7,570

" 7, 550

6,960

7,880

7,770

7,790

7,890-

7,390

7,030

7,240

6,870

7,780

June.

8,010

7,120

7,300

«7,500

7,640

7,880

8,160

8,320

7,820

7,800

7,120

7,200

7,970

8,140

8,160

8,020

7,920

7,060

7,460

7,830

8,120

8,040

7,970

7,860

8,480

8,600

8,020

8,250

8,120

8,460

July.

8,060

7,860

8,600

7,700

8,260

8,640

8,170

8,690

8,360

9,000

8,430

8,940

8,950

9,120

8,460

9,000

8,880

8,760

9,280

9,050

8,980

8,860

8,580

8,840

8,300

8,240

8,020

8,000

7,940

8,650

Aug.

8,020

8 CUO

8,650

8,340

8,300

8,390

8,490

8,340

8,120

8,160

7,960

8,470

8,200

8,530

8,340

8,110

8,000

8,160

7,940

7,780

8,680

8,260

8,300

8,310

8,270

8,190

7,800

8,620

8,400

8,260

8,000

Sept.

8,380

7 Qfift

7,730

8,250

8,560

8 260

8^280

8,140

8,310

7,980

8,320

8,180

8,130

8,240

8,240

8,260

7,750

'7,800

"7,850

 7,900

8,460

7,840

8,010

7,560

7,650

8,260

8,050

7,960

8,000

8,170

a Discharge partly estimated because of infiomplete gage-height record. 

b No gage-height record; discharge estimated.

NOTE. Daily discharge in the above table does not include flow in Illinois and Michigan Canal (see 

" Diversions'' in station description). Braced figures show mean discharge for periods indicated.
SUBFACE WATER SUPPLY, 1921, PAET V.

Monthly discharge, in second-feet, of Des Plaines River at Joliet, III., for the

ending Sept. SO,

Month.

April. ...........

Maximum.

9,400

9,960

9,260

8,630

8,390

9 480

11,100

Minimum.

7,060

6,880

6,730

6,250

6,070

6.560

Mean.

8,630

8,580

8,210

7,880

7,590

Q 9SA

8,790

Month.

July......... ... .

Maximum.

10,260

8,600

9,280

8,940

8,560

11,100

Minirnirtn.

6,870

7,060

7,700

7,780

7,560

6,070

Mean.

8,140

7,880

8,560

8,270

8,080

8,240

FOX RIVER AT ALGONQUIN, HI.

LOCATION. In NW. | sec. 34, T. 43 N., R. 8 E. third principal meridian, at 

Chicago Street Bridge in Algonquin, McHenry County, 100 feet above 

Public Service Co.'s dam and 500 feet above Crystal Lake outlet.

RECORDS AVAILABLE. October 1, 1915, to September 30, 1921.

DRAINAGE AREA. 1,340 square miles (measured on map issued by United States 

Geological Survey; scale, 1 to 500,000).

GAGE. Enameled staff gage attached to concrete abutment of bridge; read by 

Edward Pedersen.

CHANNEL AND CONTROL. Control is a concrete dam about 100 feet below gage; 

repaired during August, 1919; practically permanent.

DISCHARGE MEASUREMENTS. Made from upstream side of bridge or by wading 

below dam.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 4.15 feet at 

7 a. m. May 1 (discharge, 4,950 second-feet); minimum stage, 0.87 foot 

August 3 (discharge, 117 second-feet).

1916-1921: Maximum stage recorded, 5.3 feet March 31, 1916 (discharge, 

7,120 second-feet); minimum stage, 0.59 foot August 31, 1918 (discharge, 

67 second-feet).

REGULATION. Water is diverted at dam below gage to operate a grist mill 

which runs on an average of about 4 hours a day, except Sundays, during 

September to March, inclusive, and one day a week during remainder of 

year. Effect of operation is appreciable at gage only at low stages, and 

mill head gates are closed when gage readings or discharge measurements 

are made.

ACCURACY. Stage-discharge relation practically permanent; not affected by 

ice. Rating curve well defined above and fairly well denned below 400 

second-feet. Gage read to hundredths twice daily. Daily discharge 

ascertained by applying mean daily gage height to rating table. Records 

good for medium and high stages; fair for low stages.

Discharge measurements of Fox River at Algonquin, Itt., during the year ending

Sept. SO, 1921.

[Made by H. E. Grosbach.]

Date.

Mar. 2 _______ ....

Apr. 26.......................

&,

Feet. 

1.26

3.06

Discharge.

Sec.-ft. »236

9 JUfl

Date.

July 26 « ___ ..... ...

Sept. 7... ..................

Gage 

height.

Feet. 

0.88

1.31

Discharge.

Sec.~ft. 

146

453

Accuracy doubtful on account of low velocities. & Mill bead gates open.
UPPEE MISSISSIPPI KEYJEB BASIN.

Daily discharge, in aecaneZ*/«e£, of Fox River at Algonquin, III., for the

Sept. 80, 19%1.

Day.

1 ____ . .....

2..............

3 .., _...

4 ____ ......

6... ...........

6..............

7..............

8..............

9. . _ ......

10 ...........

11... ...........

12..............

13... ...........

14..............

15..............

16.. _____ ..

17.... _ .......

18..............

19... ...........

20... ...........

21..............

22..............

23

24 _ ...........

25... ...........

26..... _ ......

27... _ .. _ ...

28..............

29.. __ ........

30..............

31... ...........

Oct.

275

283

283

283

275

275

268

260

260

260

268

268

275

275

275

283

291

291

291

299

299

307

307

307

315

307

307

307

299

291

291

Nov.

299

307

323

339

364

400

427

445

464

464

474

483

483

464

445

445

427

427

409

391

373

373

364

355

355

347

339

339

339

331

Dec.

323

339

355

373

391

409

427

436

427

409

400

391

391

400

409

409

418

427

427

436

445

445

445

454

454

454

464

464

464

474

474

Jan.

483

483

483

492

492

502

502

502

512

502

502

483

454

418

382

364

355

355

373

391

409

436

474

502

512

521

521

502

483

464

445

Feb.

436

436

427

427

427

427

418

418

427

427

445

445

464

464

454

445

445

445

445

454

454

464

464

445

445

A.VI

409

391

Mar.

373

382

391

400

409

427

464

540

640

805

920

1,040

1,230

1,300

1,440

1,440

1,510

1,510

1,510

1,440

1,370

1,370

1,300

1,300

1,300

1,370

1,300

1,300

1,230

1,160

1,100

Apr.

1,040

980

920

860

860

860

805

805

750

750

695

695

695

640

640

695

750

805

860

980

1,100

1,300

1,720

2,100

2,260

2,750

3,280

3,850

4,250

4,650

May.

4,850

4,650

4,460

4,250

3,850

3,470

3,100

2,750

2,580

2,420

2,260

2,100

1,950

1,880

1,720

1,580

1,510

1,370

1,230

1,160

1,040

980

860

805

750

695

695

640

590

560 <un

June.

521

502 4A3

464

445

427

427

409

409

391

391

373

347

315

283

260

245

245

230

230

222

215

215

208

200

200

194

187

187

187

July.

ISO

180

187

187

194

' 187

187

187

180

187

194

200

200

208

215

215

215

222

230

230

222

215

208

200

200

187

174

161

148

135

129

AW?-

123

123

}"

123

139

123

129

129

135

135

142

148

148

154

154

161

161

168

174

187

200

215

215

222

230

230

230

23S

230

245

260

Sept.

275

291

315

347

391

427

454

483

502

521

540

560

570

580

580

600

610

620

640

695

805

920

1,040

1,160

1,230

1,230

1,300

1,300

1,370

1,370

Monthly discharge of Fox River at Algonquin, III., for the year ending Sept. SO,

1921.

[Drainage area, 1,340 square miles.]

Month.

April. _______ .... _ ..................

May.........................................

July .. .. . _...

f^ptembw .

Discharge in second-feet.

Maximum.

315 

483 

474 

521 

464 

1,510 

4,650 

4,850 

521 

230 

260 

1,370

4,850

Minimum.

260 

299 

323 

355 

391 

373 

640 

540 

187 

129 

117 

275

117

Mean.

286 

393 

420 

461 

438 

1,040 

1,440 

1,980 

314 

192 

173 

724

657

Per 

square 

mile.

0.214 

.293 

.313 

.344 

.327 

.776 

1.07 

1.48 

.234 

.143 

.129 

.540

.491

Run-off 

in inches.

0.25 

.33 

.36 

.40 

.34 

.89 

1.19 

1.71 

.26 

.16 

.15 

.60

6. 4

FOX BIVER AT WEDEON, HI.

LOCATION. In sec. 9, T. 34 N., R. 4 E., at highway bridge in Wedron, LaSalle

County, 1,000 feet above Buck Creek. 

DRAINAGE AREA. 2,500 square miles.

RECORDS AVAILABLE. November 5, 1914, to September 30, 1921. 

GAGE. Chain gage attached to bridge; read by O. E. Kirby and Charles Davis. 

DISCHARGE MEASUREMENTS. Made from upstream side of bridge. 

CHANNEL AND CONTROL. Bed at measuring section is soft and probably shifts.

Control about 1,000 feet downstream, composed of coarse gravel and large

boulders; practically permanent except as affected at times by growth of

aquatic plants. 

81182 24t--wsp 525 12
SUBFACE WATEB SUPPLY, 1921, PART V.

EXTREMES OP DISCHABGE. Maximum stage recorded during year, 10.3 feet 

at 6 a. m. April 27 (discharge, 6,740 second-feet); minimum stage, 5.52 

feet at 6 a. m. August 10 (discharge, 166 second-feet).

1915-1921: Maximum stage recorded, 17.22 feet 6 January 22, 1916 

(discharge not determined because of backwater from ice); maximum 

open-water discharge, 17,900 second-feet March 26, 1920 (gage height, 

14.2 feet); minimum discharge recorded, 105 second-feet November 20,1914 

(measured by current meter).

REGULATION. Slight diurnal fluctuation is caused by operation of power plants 

at and above Aurora.

ICE. Stage-discharge relation affected by ice during most winters.

ACCURACY. Stage-discharge relation changed following the high water of April 

and May; affected by ice December 22 to January 2, January 10-22, 27-31, 

and February 1-3. Rating curve used October 1 to May 16, well defined 

between 200 and 10,000 second-feet; curve used May 17 to September 30, 

well defined between 250 and 10,000 second-feet. Gage read to hundredths 

twice daily; diurnal fluctuation only slight. Daily discharge ascertained 

by applying mean daily gage height to rating table except for periods during 

which stage-discharge relation was affected by ice for which it was ascertained by means of gage heights, two discharge measurements, observer's 

notes, and weather records. Open-water records good; winter records poor.

Discharge measurements of Fox River at Wedron, III., during the year ending Sept.

Date.

Dec. 22

22

Made by 

L. G. Williams.... .....

.....do...... ............

Gage 

height.

Feet. 

06.65

ofi.70

Discharge.

Sec.-ft. 

735

770

Date.

Mar. 18

Made by 

Grosbach and Williams

Gage 

height.

Feet. 

8.15

Discharge.

Sec.-ft. 

2,630

o Stage-discharge relation affected by ice.

Daily discharge, in second-feet, of Fox River at Wedron, III,, for the year ending

Sept. 30, 1921.

Day.

1... ... ... .....

2.......... ...

3 _ .... t ..

4 ..

5..............

6..

7.... ... .

8..............

9 __ ..

10 . ._..__.

11. ..........

12..............

13........ ......

14 

15..............

16 _ ..

17 . .

18..............

19..............

20... ...........

21..............

22..............

23..............

24..............

25..............

26..............

27..............

28..............

29 __ .........

30..............

31 .........

Oct.

409

409

382

382

257

436

382

409

409

356

331

VtJ

409

409

464

436

382

274

409

464

492

409

382

356

409

356

492

436

521

464

409

Nov.

356

356

521

492

436

382

356

521

774

705

672

492

492

492

492

641

492

435

464

521

521

521

641

550

464

409

550

AfA

433

Dec.

641

521

409

436

550

409

641

4-fiJ.

464

521

fiA.1

850

932

774

641

580

464

560

600

Jan.

}l,500

1,060

932

QQf|

890

810

810

774

610

650

Feb.

j

I 700

738

C7O

641

774

738

705

705

641

700

641

672

436

492

521

610

810

705

774

705

705

610

580

Mar.

774

672

641

7O<2

850

2,070

2,070

1,690

1,690

1,940

2,600

3

QKA

3,050

4,350

9 vin

2,330

O A7A

1,940

1,820

i ain

1,940

2,070

2,330

2,600

2,200

2,070

1,820

1.690

Apr.

1,690

1,460

1,300

1,240

1,300

1,150

1,100

1,100

1,060

975

975

Q7K

975

932

1 060

1,150

2,070

1,940

1,940'

1,940

1,940

2,460

3,950

3,950

3,560

5,180

R 74fl

6,280

6,280

6,510

May.

6,510

6,280

6,050

5,830

5,390

4,760

4,550

4,150

3,750

3,380

3,050

9 7*^1

2,600

2,200

1,940

1,820

1,690

1,460

,460

,360

,260

,070

,020

,070

,020

1,260

1,160

1,070

940

785

750

June.

750

648

900

750

648

555

555

615

528

500

585

500

445

500

390

365

340

390

315

268

390

340

290

340

340

268

209

290

365

July.

340

315

268

214

191

218

290

315

245

245

94n

315

340

315

315

268

268

245

315

365

290

245

222

232

209

232

240

204

232

204

Aug.

209

365

365

290

390

290

268

218

196

204

227

227

236

290

218

227

268

236

268

390

365

365

340

390

340

365

340

365

290

290

290

Sept.

<un

315

268

340

315

290

528

615

- 528

585

680

785

680

820

715

820

860

785

750

820

1,020

1,160

1,160

1,070

1,260

1,260

1 MS)

1,360

1,460

1,810

NOTE. Braced figures show estimated mean discharge for periods included.

6 Published incorrectly in previous reports.
UPPER' MISSISSIPPI ElVSB tiS&Xt. '

Monthly discharge of Fox River at Wedron, III., for the year eliding Sept. S&, 

[Drainage area, 2,500 square miles.]

Month.

December ___________________

March _____________________

May..... _ ......._ . ._..... _

June _____________________

July ...............................-.....

September ___________________

Discharge in second-feet.

Maximum.

521 

774 

932

* 810 

4,350 

6,740 

6,510 

900 

365 

390 

1,810

6,740

Minimum.

257 

356

436 

610 

932 

750 

209 

191 

195 

268

191

Mean.

401 

606 

596 

853 

668 

1,940 

2,440 

2,660 

466 

268 

294 

829

995

Per 

square 

mile.

0.160 

.282 

.238 

.341 

.267 

.776 

.976 

1.06 

.186 

.107 

.TO 

.332

.398

Run-oft 

in inches.

a is

.23 

.27 

.39 

.28 

.89 

1.09 

1.22 

.21 

.12 

.1* 

.37

5.39

VERMHION RIVES NEAR STREATOR, HI.

LOCATION. In sec. 1, T. 30 N., R. 3 E, third principal meridian, at highway, 

bridge known as bridge No. 3, 1| miles south of Streator, La Salle County * 

and 100 feet below Santa Fe Railway bridge.

DRAINAGE AREA. 1,080 square miles.

RECORDS AVAILABLE. July 27, 1914, to September 30, 1921.

GAGE. Chain gage attached to highway bridge; read by Floyd Leslie and Andrew 

Gall.

DISCHARGE MEASUREMENTS. Made from downstream side of bridge or by 

wading.

CHANNEL AND CONTROL. Bed composed of gravel and rocks. Brush and 

timber on banks above low-water stage. Control for low stages composecl 

of loose rocks; shifts.

EXTREMES OP DISCHARGE. Maximum stage recorded during year, 6.5 feet 

September 17 (discharge, 1,850 second-feet); minimum discharge, 0.3secondfoot July 7.

1914-1921: Maximum stage recorded, 22.9 feet April 20, 1920 (discharge, 

16,500 second-feet); minimum discharge, no flow, August 25-28 and September 16-30, 1920.

ICE. Stage-discharge relation seriously affected by ice.

ACCURACY. Stage-discharge relation not permanent owing to shifting of loose 

rocks below gage; seriously affected by ice December 17 to January 3 and! 

January 10-19. Three rating curves used, all fairly well defined below 

12,000 second-feet; applicable December 10 to April 30, June 29 to July 11!, 

and July 12 to September 30. Gage read to hundredths once daily. Daily 

discharge ascertained by applying daily gage height to rating table except 

for periods during which stage-discharge relation was affected by ice for 

which it was ascertained by means of gage heights, one discharge measurement, and weather records. Records fair except for periods of ice effect 

 for which they are poor.

Discharge measurements of Vermilion River near Streator, III., during the year

ending Sept. SO, 1921.

Date.

Dec. 21

Mar. 17

June 29

Made by 

L. G. Williams « . ...

H. E. Grosbach.. ______

Gage

Feet. 

60.71

1.66

2.13

Discharge.

Sec.-ft. 

0.5

76

97

Date.

Sept. 15

17

Made by 

.__..do_- _...... .... .

..... do-.... 

Gage 

height.

Feet. 

0.55

.72

6.18

Discharge;

Sec.-ft. 

0.6 2.0.

1,650

Engineer, U. S. Public Health Service. 6 Stage-discharge relation affected by ice.
166 SURFACE WATBB SUPPLY, 1921, PABT V.

Daily discharge, in second-feett of Vermilion River near- Streator, III., for the

ending Sept. SO, 1921.

Day.

1 __ ..

2.......

3 ....

4. ...

5.......

6 _ ....

7.......

8 _ ....

9.......

10.......

11- 

12.......

13.......

14 ..,.

15 _ ....

Dec.

0.9

.-1.0

.9

1.7

1.6

1.6

Jan.

,

\ 0.8

1.6

3.8

8.5

10.0

10.7

10.7

7.0

Apr. July.

38

29

20

12.0

3 Q

3.0

.3

7.2

2.6

3.0

2.6

2.0

.4

3.0

Aug.

0.4

.4

.8

6.8

6.0

1.7

1.0

.6

.4

.6

.8

.6

.8

1.5

Sept.

1.6

l.l

.6

.6

1.1

9 1

1.1

2.4

1.1

2.4

.8

1.6

2.1

3.0

Day.

16 

17 

18 

19 

20 

21 

22.......

23 

24 

25.... _

26 

27

28.......

29 

30. 

81 ..

Dec.

1.2

1 ' 5

Jan.

1 7.0

1

14.2

15.6

17.0

15.6

14.2

16.3

17.8

19.4

18.6

17.8

17.0

17.0

Apr.

1,090

1,090

1,170

1,130

1,130

1,090

1,090

July.

2.7

.8

2.9

2.7

2.7

2.5

2.2

2.7

2.5

2.2

1.7

1.2

1.2

.8

.6

.6

Aug.

2.2

2.7

1.7

1.2

L2

1.5

1.7

2.7

3.4

2.2

1.7

2.2

.4

.8

1.2

Sept.

1,150

1,850

1,220

595

525

490

490

370

208

182

170

285

182

114

195

NOTE. Discharge interpolated on account of missing gage readings, Jan. 9, 23, 30,31, July 3, and Sept. 18. 

Braced figures show mean discharge for periods indicated.

Monthly discharge of Vermilion River near Stredtor, III., for the year ending

Sept. 80, 1921.

[Drainage area, 1,080 square miles.]

Month.

December 10-31. . ....

January .

April 24-30-.-., . 

July... 

August. .....................................

September.. . 

Discharge in second-feet.

Maximum.

1.7 

19.4 

1,170 

38.0 

6.8 

1,850

Minimum.

0.5 

.8 

1,090 

.3 

.4 

.6

Mean.

0.75 

10.3 

1,100 

5.09 

1.66 

267

Per square 

mile,

0.001 

.010 

1.03 

.005 

.002 

.247

Run-oft in 

inches.

0.001 

.01 

.27 

.006 

.002 

.28

MACKINAW RIVER NEAR GREEN VALLEY, ILL.

LOCATION. In sec. 15, T. 23 N., R. 5 W., at Chicago & Northwestern Railway 

bridge 200 feet east of crossing of Green Valley-Pekin road, 3 miles north of 

Green Valley, Tazewell County, and 8 miles south of Pekin.

DEAINAGE AREA. 1,100 square miles (measured on map issued by United States 

Geological Survey; scale, 1 to 500,000).

RECO-KDS AVAILABLE. March 9 to September 30, 1921.

GAGE. '-Chain gage attached to downstream guardrail of railway bridge; installed March 28; read by John Eggena. Prior to March 28, temporary 

staff gage on old crib near left bank, 40 feet above bridge, was used.

DISCHARGE MEASUREMENTS. Made from downstream side of bridge or by wading.

CHANNEL AND CONTROL. Bed composed of sand; free from vegetation; shifting. 

One channel at all stages; curves under bridge. Banks wooded; subject to 

overflow at high stages. No well-defined control. Backwater from Illinois 

River will occur during extreme high water.

EXTREMES OF DISCHARGE. Maximum stage recorded during period, 8.32 feet 

June 3 (discharge, 4,570 second-feet); minimum stage, 1.34 feet July 27 and 

28 (discharge, 73 second-feet).

High water of 1920 reached a stage of 12.5 feet according to W. A. McCully, 

foreman of highway bridge construction.

ICE. No record.
UPPER MISSISSIPPI hivinfc

ACCURACY. Stage-discharge relation changed during high water of Junfc. 

Rating curve used prior to June 3 well defined between 100 and 600 secondfeet; extended beyond those limits on basis of succeeding curve. Curve used! 

June 3 to September 30 well defined between 50 and 4,500 second-feet.. 

Gage read to hundredths once daily. Daily discharge ascertained by applying daily gage height to rating table. Records good for low and medium* 

stages; fair for high stages.

Discharge measurements of Mackinaw River near Green Valley, 111., during the 

year ending Sept. SO, 1921.

Date.

Dec. 15

15

TWar Q

Made by 

hagen.

 ..tto ... _..

Gage

Feet.

1.97

1.94

q qi

Discharge.

Sec.-ft.

127

133

470

Date.

Mar. 28

19

Made by 

Williams and Bell ......

L. G. Williams.........

__ .do. _ ..... .........

. (Jo

Gage 

height.

Feet. 

2.76

3.25

1.35

2,64

Discharge.

Sec.-ft. 

SOS

466

70

307

a Engineer, United States Public Health Service.

Daily discharge, in second-feet, of Mackinaw River near Green Valley, III., 

the year ending Sept. SO, 1921.

Day.

1.. -........-.-.. ........ _ ....... _ .......

2.. i ... .

3............................................

4............................ _ .. ___ .....

5. ...........................................

6 .........................................

7............................................

8 ___ __ . .

9.. ..........................................

10 ......

11...... . ......, 

12............................................

18.. ___ , _ .. .... ______ . _____

14 __ .......... _ . ________ . _____ .

16............................................

16.... ___ . __ . __ . _ . _______ . _

17............................................

18................ ..........................

19.. ____ . ... __ . _ .... ______ . _ ..

20...... ......................................

21............................................

32

23... _____ .. _____ . _ ... _ ... ___ .

24. .... .i .. ...... .. .. ...

25

26............................................ 4V*

28................ .........................

29.......... ............................

30................ ... ....... ...............

31 __ . .

Mar.

520

340

210

210

150

150

134

134

134

134

110

119

260

260

210

235

405

440

440

310

285

260

9.4S

Apr.

210

210

170

170

160

150

150

134

134

134

134

126

126

134

160

272

745

860

800

560

520

605

1,050

1,050

920

1,400

2,350

1,860

1,260

1,050

May,

860

800

605

520

480

480

405

370

340

370

340

310 285'

272

222

210

190

180

170

170

160

150

210

134

134

840

1,550

1,120

560

440

370

June.

285

3,560

4,550

2,100

1,070

686

555

515

405

370

475

325

285

248

190

172

172

310

235

210

190

355

405

310

260

310

260

555

370

210

July.

172

155

155

125

125

118

112

112

112

100

100

94

88

88

88

88

83

94

83

88

88

88

88

83

78

78

74

74

112

100

100

Aug

83

88

118

88

78

78

. 78

78

78

74

235

370

112

355

172

139

125

113

100

88

83

78

78

2,350

593

405

OQ C

190

155

125

112

Sept.

100

88

615

516

3,560

4,440

2,660

890

640

475

475

880

SSS

405

826

298

475

780

515

640

556

1,070

640

515

440

406

370

355

340

810

NOTE. No gage reading Sept. 7; discharge interpolated.
SURFAQE WATER SUPPLY, 1921, PART V.

Monthly discharge of Mackinaw River near Green Valley,. III., for the year ending

Sept. 80, 1921.

[Drainage area, 1,100 square miles.]

Month.

March 9-31 _____________ _

April.................................... .

May... ________________

June _______________

July........................ ....... .........

August... .- . ................

September ____________ .. .

Discharge in second-feet.

Maximum.

520 

2,350 

1,120 

4,550 

172 

2,350 

4,440

Minimum.

119 

126 

134

172 

74 

74 

88

Mean.

248 

587 

395 

665 

101 

229 

807

Per

square 

mile.

0.225 

.534 

.359 

.605 

.092 

.208 

.734

Run-off 

in inches.

a 10

.60 

.41 

.68 

.11 

.24 

.82

SPOON RIVER AT SEVILLE, HI.

LOCATION. In sec. 24, T. 6 N., R. 1 E. fourth principal meridian, at Toledo, 

Peoria & Western Railway bridge a quarter of a mile east of railway station 

at Seville, Fulton County.

DBAINAGE AEEA. 1,600 square miles.

RECORDS AVAILABLE. July 24, 1914, to September 30, 1921.

GAGE. Chain gage attached to bridge; read by R. M. Boales.

DISCHARGE MEASUREMENTS. Made from downstream side of bridge or by wading above dam at railroad station. Measurements made during rapidlychanging stages are corrected for change in stage by method described in 

Water-Supply Paper 375.

CHANNEL AND CONTROL. A loose rock and timber dam li miles downstream 

from gage, used to create a reservoir for the pumping station of the Toledo 

Peoria & Western Railway, forms control for medium stages; at other 

stages control is composed of clay and sand and is somewhat shifting. Dam 

was removed August, 1918, and replaced August, 1919.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 11.4 feet 

March 9 (discharge, 4,530 second-feet); minimum stage, 2.35 feet October 

14 (discharge, 26 second-feet).

1914-1921: Maximum stage recorded, 26.0 feet January 23, 1916 (discharge not determined because of backwater from ice); maximum open- 

' water stage recorded, 23.0 feet January 24, 1916 (discharge, 17,800 seeondfeet); minimum stage, 1.35 feet July 31 and August 27-29, 1914 (discharge, 

3.8 second-feet).

ICE, Stage-discharge relation seriously affected by ice at times.

ACCURACY. Stage-discharge relation practically permanent during year; slightly 

affected by ice for short periods. Rating curve fairly well defined throughout. Gage read to hundredths once daily except during winter when it was 

read three or four times weekly. Daily discharge ascertained by applying 

daily gage height to rating table except for periods during which stage-discharge relation was affected by ice and for days on which no gage reading was 

made, for which it was ascertained as indicated in footnote to table of daily 

Open-water records fair; winter records poor.

Discharge measurements of Spoon River at Seville, III., during the year ending

September 80, 1921.

Date.

20

Mar. 15

Made by 

rist

Williams and Qrosbach.

A.

Feet. 

62.89

&2.91

8.50

Discharge.

Sec.-ft. 

76

75

2,640

Date.

10 c

26

Made by 

L. Q. Williams.........

L. Q. Williams.........

Gage 

height.

Feet.

4.88

3.18

5.21

Discharge.

Sec.-ft. 

722

81

843

o Engineer, United States Public Health Service. 

* Stage-discharge relation slightly affected by ice.

Measurement of doubtful accuracy.
UPPEB MISSISSIPPI EIVEE BASIN. 169

Daily discharge, in second-feet, of Spoon River at Seville, III., for the year ending

Sept: SO,

Day.

1 _ .. __ .....

2.... ... ....

8...... ........

4 _____ .....

5 . ......

6. -

7 __ ......

8 

9... _____ -

10 

11 

12

13 ..

14...... ........

15 _ ........

18........ ......

17 _ ..

18 ...........

19 __ ......

20 .

21. ..

22 _ ........

23 

24..............

25 .......

26. __ .........

27. .

28 _ .. _ ..

29. ....

30 ...

31 

Oct.

30

53

55

46

40

38

36

34

32

30

29

29

27

26

27

34

34

29

29

48

50

53

58

48

64

53

58

48

56

64

64

Nov.

70

54

76

73

65

63

64

65

68

70

68

73

60

58

60

43

42

53

57

58

57

60

60

53

54

58

57

56

63

60

Dec.

59

58

56

55

56

56

56

58

56

57

56

58

58

100

74

89

61

56

53

1 50

Jan.

250

330

330

265

200

140

102

63

50

74

74

82

89

93

97

105

113

Feb.

120

120

120

103

86

86

86

86

78

71

68

65

64

64

63

61

59

54

49

46

42

39

36

33

34

35

39

42

Mar.

JO

4.R

35

3d

U

76

94

1,940

4,530

2,220

980

540

400

660

2,760

1,380

1,330

580

435

400

365

348

300

240

255

270

315

300

300

240

Apr.

OOK

188

172

Ififl

150

140 lift

140

140

188

160

140

120

120

172

1.550

Si 760

1,990

1,440

1,080

930

1,330

1,500

1,030

830

1,230

3,240

3,830

2,700

1,940

May

1,500

1,380

1,330

1,080

930

830

7an

700

620

660

830

580

540

470

418

382

365

% 330

330

315

300

270

255

240

225

740

330

270

1,030

830

418

June

315

382

1,660

74rt

700

365

285

225

225

210

400

255

188

172

185

505

185

185

930

270

285

505

400

185

185

435

348

365

1,130

300

July.

188

160

210

120

87

70

69

68

240

365

140

81

64

53

60

400

110

48

110

830

505

188

104

68

43

38

34

32

300

270

210

Aug.

150

470

1,230

1,600

880

382 9/in

185

150

140

120

188

210

140

120

210

, 172

225

470

285

185

140

116

130

418

1,030

365

270

188

160

140

Sept.

130

110

150

97

930

418

don

255

185

435

225

700

1,550

830

400

300

700

1,080

1,660

1,130

1,180

1,660

1,330

780

505

435

505

382

300

400

NOTE Stage-discharge relation afleeted by ice Dec. 20 to Jan. 6, and Jan. 14-23; discharge ascertained 

by means of gage heights, observer's notes, two discharge measurements, and weather records. Discharge 

interpolated on account of missing gage readings, Dec. 19, Jan. 7, 9,10,12, 24, 26, 28, 30, 31, Feb. 2, 4, G, 7, 

9,11,13,14,16,18, 20, 21, 23, and 25. Braced figures show mean discharge for periods indicated.

Monthly discharge of Spoon River at Seville, III., for the year ending Sept. SO,

1921.

[Drainage area, 1,600 square miles.]

Month.

April... __ ..................... ...........

May.. ____________________ .

July... .......................... ...^.......

September- .. __ .....................

This year ________________

Discharge in second-feet.

Maximum.

64 

1 76 

100

120 

4,530 

3,830 

1,500 

1,660 

830 

1,600 

1,660

4,530

Minimum.

26

42

33 

35 

120 

225 

172 

32 

120 

97

26

Mean.

42.6 

60.6 

57.2 

134 

66.0 

699 

1,020 

622 

417 

170 

345 

639

357

Per 

square 

mile.

0.027 

.038 

.036 

.084 

.041 

.437 

.638 

.389 

.261 

.106 

.216 

.399

.223

Ruii-off 

in inches,

0.03 

.04 

.04 

.10 

.04 

.50 

.71 

.45 

.29 

.12 

.25 

.45

3.02

SANGAMON RIVER AT HONTICELLO, ILL.

LOCATION. In sec. 12, T. 18 N., R. 5 E. third principal meridian, at Illinois 

Central Railroad bridge half a mile west of Monticello, Piatt County.

DRAINAGE AREA. 550 square mil^s.

RECORDS AVAILABLE. February 4, 1908, to December 31, 1912; June 23, 1914, 

to September 30, 1921.

GAGE. Chain gage attached to downstream side of bridge; read by David Coay.

DISCHARGE MEASUREMENTS. Made from downstream side of bridge and wooden 

trestle approach during medium and high stages or by wading during low
170 SURFACE WATEE StTPPLY, 1&21, PART V.

AND CONTROL. Control composed of fine gravel; likely to shift. 

Measuring section is at a pool.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 10.5 feet 

September 4 (discharge, 1,980 second-feet); minimum stage, 1.78 feet October 16^23 (discharge, 6 second-feet).

1908-1912 and 1914-1921: Maximum stage recorded, 15.2 feet May 14, 

1908 (discharge, 9,280 second-feet); minimum stage recorded, 1.5 feet July 

31 to August 3, 1914 (discharge, 1 second-foot).

Maximum stage during flood of March to April, 1913, 17.7 feet; March 25 

(discharge not known).

ACCURACY. Stage-discharge relation permanent since March 1, 1920, except as 

slightly affected by ice March 1, 6, and 7, 1920. Rating curve well defined 

between 2 and 1,000 second-feet; fairly well defined above 1,000 secondfeet. Gage read to half-tenths once daily. Daily discharge ascertained by 

applying daily gage height to rating table except as indicated in footnote 

to table of daily discharge. Records good for low and medium stages; fair 

foi* high stages.

Discharge measurements of Sangamon River at Monticello, Itt., during the yeat

ending Sept. 80, 1921.

[Made by H. E. Grosbach.]

Date.

Feb. 10.. __ . ___ ........ ___ .............. _ . . ......

Aug. 19 . _ ..... _ ..... __ ...... __ ..... _ --._._.--.. .-....- ..

Gage 

height.

Fett. 

4.49

7.38

2.58

Discharge.

Sec.-ft. 

210

589

53.0)

Daily discharge, in second-feet, of Sangamon River at Monticello, III., for the period 

Mar. 1, 1920, to Sept. SO, 1921.

Day.

1920. 

1 __ .. _________ . __ .. ___ ......

2......... . ..... 

3 ________ . ___ ......... ____ .......

4...-...-............ .....................

5.. _ . _ . ___ . _ ........................

6.. ____ . __ . _ ........... ___ . _ ...

7.. _ . ____ . ___ ...... _ . ___ ..... _

8 _ . _ . ______ .... _ .... ____ ... r ...

9.................... ........................

10............................................

11....... __ . _ .... __ .......... ___ ....

12 ___ . ____ . __ .. _ ......... __ .......

13............................................

14............................................

15 _ . _ .... _ ...................... ____ .

16... ____ ... _ ........ __ .... __ ......

17 _ ... ___ .... _ ........ ____ . _ .....

18.. ..........................................

19............................. _ ............

20.. . ........... .......................

21 .... .. -..- .-_._...._...._..__._..

22............................... ..........

23

24............ ... ...........................

25............................................

28.. _ .......................................

27....................... ..................

28............................................

29...............-.-.-.....- ...... ....

30..-....-........ .........................

31.. ................. ; _ ........

Mar.

45

43-

37

126

478

290

200

165

227

452

800

1,720

2,080

2,290

2,500

1,980

1,580

1,350

1,050

970

900

830

660

560

640

1,720

2,080

2,080

2,080

1,720

1,150

Apr.

720

680

426

413

400

374

348

745

895

1,250

1,150

1,050

895

770

720

593

895

1,870

2,850

3,360

6,970

.7,960

5,900

2,080

1,660

1,250

970

895

895

860

May.

860

916

970

970

640

530

452

400

374

348

323

2,080

2,080

1,580

1,460

1,870

2,280

5,150

3,750

2,180

1,880

1,250

1,010

770

* 640

530

478

400

348

339

331

June.

323

276

275

263

263

269

275

251

215

195

185

165

155

145

117

117

109

101

93

87

81

86

85

77

70

66

64

63

. 49

49

July.

49

49

89

80

70

52

49

49

49

46

46

46

46

145

66

49

43

42

40

31

28

22

22

22

21

20

15

15

11

11

11

Aug.

U

11

11

11

13

13

13

14

15

15

15

11

11

11

11

11

9

9

9

9

9

8

7

7

7

7

7

7

7

7

7

Sept.

7-

7-

77-

T';

f

TrIT

1ialalai&

2ft

22-

31

18. ia11

ft

T

T

T

T

11

16.

117-

7-
TIPPER MISSISSIPPI &IVBB BASIN, 171

Daily dischetrgt, in second-feet, of Sangasmon River at MonticeUo, JU., fof th& pepibd 

Mar. 1, 1920, to Sefc. $0, 1921 Continued.

Day.

1920-21.

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.

7

7

7

7

7

7

7

7

7

7

7

7

7

7

7

6

6

6

6

6

6

6

6

8

9

11

13

13

11

12

Nov.

13

15

15

13

11

11

12

13

11

11

11

11

11

11

13

13

13

13

13

13

13

13 to

13

13

13

13

13

Dec.

13

13

13

15

20

25

28

25

25

22

20

21

22

20

20

20

15

15

15

15

15

15

15

15

15

15

15

15

15

15

15

Jan.

15

62

109

109

97

43

37

37

32

28

40

37

37

37

37

34

31

25

25si

34

49

63

77

109

77

52

63

63

70

77

Feb.

126

145

145

135

146

165

165

205

215

205

185

165

145

126

126

101

97

93

91

89

85

85

77

70

63

63

63

Mar.

63

66

63

60

60

68

77

117

185

348

374

348

387

426

374

323

299

263

227

239

251

275

299

413

575

745

1,310

1,880

1,880

1,720

1,250

Apr.

830

770

682

593

465

400

374

374

374

342

311

287

275

275

275

413

672

930

970

720

680

640

720

790

860

895

8,30

830

970

1,050

May.

885

720

560

491

452

400

361

336

311

275

275

275

251

227

206

185

165

158

151

145

126

118

109

109

101

895

1,880

1,660

1,280

913

545

June.

413

413

426

413

382

251

227

185

165

145

135

122

109

97

85

77

3?4

251

188

126

165

117

117

93

77

81

85

109

60

56

July.

56

56

44

31

31

31

31

46

22

21

20

18

15

15

15

11

11

11

11

11

11

9

9

8

7

7

7

77

66

28

34

Aug.

40

40

34

25

 20

15

13

11

11

11

89

126

239

174

109

117

77

69

52

49

49

49

227

77

60

145

89

83

77

86

37

Sept.

31

28

28

1,980

930

387

311

251

205

145

186

227

299

275

205

126

165

175

185

165

165

165

155

145

198

251

227

185

155

145

NOTE. Discharge records in the above table for the period Mar. l to Sept. 30, 1920, supersede those 

published in Water-Supply Paper 505, p. 266. Stage-discharge relation slightly affe'cted by ice Mar. 1,6, 

and 7,1920; discharge estimated. Gage not read and discharge interpolated May 31, Nov. 25,1920, Apr. 

1, May 18,19, and 30,1921. Gage not read on Sundays except Oct. 3, 1920, July 17, 1921, and Sept. 4, 

1921; discharge interpolated.

Monthly discharge of Sangamon River at Monticello, Itt., for the years ending 

Sept. SO, 1920 and 1921.

[Drainage area, 550 square miles.]

Month.

1919-20. 

October. ..

November... _________________

March

April........................................

June . . ._r_____

July..-..-.-.-..-_............_.._._.._l_.__

August..

September. _______________ ,. .....

Discharge in second-feet.

Maximum.

482 

805 

1,200

278 

2,500 

7,960 

5,150 

323 

145 

15 

31

Minimum.

8 

119

37 

348 

323 

49 

11 

7 

7

7, 960 7

Mean.

74.1 

240 

309 

57.3 

118 

1,060 

1,660 

1,200 

152 

43.0 

10.1 

10.8

412

P6f 

square 

mile.

0.135 

.436 

.562 

.104 

.215 

1.93 

3.<fe 

2.18 

.276 

.078 

.018 

.020

.749

Run-off 

in inches.

tt 16 

.49 

.65 

.12 

.23 

2.22 

3.37 

2.51 

.31 

.09 

.02 

.02

10.19
172 SURFACE WATER SUPPLY, 1921, PART V.

Monthly discharge of Sangamon River at Monticetto, III., for the years ending 

Sept. 80, 1920 and jfS#jf~Continued.

Month.

1920-21. 

October ____________________

November ___ . _____________

March __ .. ___ . _ .... _________

April........................................

May _____________________

July.............. ........................

August ____________________

September ___________________

The year .. _____________

Discharge is second-feet.

Maximum.

13 

15 

28 

109 

215 

1,880 

1,050 

1,880 

426 

77 

239 

1,980

1,980

Minimum.

6 

11 

13 

15 

63 

60 

275 

101 

56 

7 

11 

28

6

Mean.

7.71 

12.5 

17.6 

52.8 

125 

483 

620 

470 

183 

24.8 

73.0 

270

195

Per 

square 

mile.

0.014 

.023 

.032 

.096 

.227 

.878 

1.13 

.855 

.333 

.045 

.133 

.491

.355

Run-off 

in inches.

0.02 

.03 

.04 

.11 

.24 

1.01 

1.26 

.99 

.37 

.05 

.15 

.55

4.82

NOTE. Monthly discharge and run-off, as shown in the above table, for the period March to September, 1920, and discharge and run-off for the climatic year 1920, supersede the determinations published in 

Water-Supply Paper 505, p. 266.

SANGAMON RIVER AT RIVERTON, ILL.

LOCATION. In southeast corner of SW. i sec. 9, T. 16 N., R. 4 W. third principal 

meridian, at Wabash Railroad bridge a quarter of a mile west of Riverton, 

Sangamon County, and 2| miles below mouth of South Fork.

DRAINAGE AREA. 2,560 square miles.

RECORDS AVAILABLE. February 13, 1908, to December 31} 1912; August 7, 

1914, to September 30, 1921.

GAGE. -Chain gage attached to bridge; read by J. J. Washburn.

DISCHARGE MEASUREMENTS. Made from downstream side of bridge or by 

wading.

CHANNEL AND CONTROL. Control composed of fine gravel; shifting. Measuring section is at a pool. 

EXTREMES OP DISCHARGE. Maximum stage recorded during year, 22.5 feet 

March 30 (discharge, 10,100 second-feet); minimum stage, 7.25 feet January 

25 (discharge, 22 second-feet).

1908-1912; 1914-1921: Maximum stage recorded, 27.8 feet February 3, 

1916 (discharge, 20,800 second-feet); minimum stage, 6.9 feet October 

3-15, 1915 (discharge, 3 second-feet).

Flood of 1883 reached a stage of about 32 feet on present gage, and that 

of 1875 is said to have been one-half foot lower (discharge not determined).

ACCURACY. Stage-discharge relation changed following the high water of latter 

part of March; not affected by ice during period of record. Two rating 

curves used, both well defined between 500 and 4,000 second-feet and fairly 

well defined outside those limits; applicable October 1 to March 31 and 

April 1 to September 30. Gage read to hundredths once daily except 

during periods December 23 to January 24 and August 10-14, when observations were discontinued. Daily discharge ascertained by applying daily 

gage height to rating table except for periods during which gage was not 

read for which discharge was not determined except for August 10-14, for 

which it was estimated. Records good except for low stages, for which 

they are fair.
UPPER MISSISSIPPI RIVER BASIN.

Discharge measurements of Sangamon River at Riverton, III., during the year

ending Sept. SO, 1921.

[Made by H. E. Qrosbach.]

Date.

Jan. 6................. ...... ........... . ...... ............-.-..

Apr. 18 .. . .......... . . .. ....

sot.

Feet. 

9.26

16.36

Discharge.

See.-ft. 

374

3,400

Daily discharge, in second-feet, of Sangamon River at Riverton, Itt., for the year

ending Sept. SO, 1921.

Day.

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

303i

Oct.

80

87

76

68

45

40

35

32

31

31

32

31

35

38

42

40

40

39

37

36

34

31

31

32

37

52

60

74

275

275

275

Nov.

133

55

58

64

61

60

57

60

58

52

48

42

40

38

39

39

38

38

37

37

37

37

36

36

35

35

34

33

33

32

Dec.

32

33

34

36

40

45

48

50

57

68

90

90

275

339

385

409

409

385

385

409

409

409

Jan.

48

115

196

206

235

. 275

275

Feb.

295

317

385

409

385

385

409

485

565

595

655

715

715

685

655

595

565

459

433

433

409

385

361

361

361

339

339

339

Mar.

317

295

295

295

317

317

339

511 '565

715

845

1,080

1,120

1,270

1,510

2,080

1,390

1,270

1,120

1,020

1,310

1,350

1,230

1,470

2,280

2,940

3,800

8,080

9,780

10,100

9,950

Apr.

9,620

8,980

8,520.

6,620

5,500

3,800

2,950

2,220

2,020

2,020

1,660

1,380

1,340

1,620

1,620

1,700

2,220

3,420

3,540

3,540

3,540

3,660

4,360

4,430

3,870

5,600

8,980

9,460

8,980

8,080

May.

7,000

6,620

5,600

4,830

4,010

i inn

3,000

2,620

1,970

1,700

1,660

1,500

1,420

1,340

1,150

1,080

976

943

910

844

780

717

717

656

626

597

568

626

780

844

1,040

June.

1,300

1,260

976

910

717

656

597

540

513

460

460

435

410

486

910

1,920

1,260

780

597

540

540

597

1,660

1,260

943

910

1,010

1,120

812

656

July. 

435

364

321

280

250

230

220

210

321

300

260

230

154

138

120

105

97

154

1,660

3,540

2,420

2,320

1,180

686

342

280

220

210

200

172

230

Aug.

1,420

2,220

2,370

1,500

910

656

717

386

321

1,200

943

717

540

910

1,040

877

748

626

300

513

460

435

386

342

260

240

200

Sept.

181

181

172

163

280

540

812

1,040

1,120

1,180

1,180

910

686

435

410

386

342

364

410

410

410

386

386

364

597

844

1,180

1,660

1,820

1,970

NOTE. Braced figure shows mean discharge for period included.

Monthly discharge of Sangamon River at Riverton, III., for the year ending Sept.

SO, 1921. 

[Drainage area, 2,560 square miles.]

Month.

April. .................... __ . _____ ....

Juge..... ....................................

Discharge in second-feet.

Maximum.

275 

133

i m. i 715 

! 10, TOO 

9,620 

7,000 

1,926 

3,540 

2,370 

1,970

Minimum.

31 

32 

32

295 

295 

1,340 

568 

410 

97 

200 

163

Mean.

66.8 

46.7 

202 

466 

2,220 

4,510 

1,950 

841 

569 

840 

694

Per 

square 

mile.

0.026 

.018 

.079 

.182 

.867 

1.76 

.762 

.329 

222 

.328 

.271

Run-off 

in inches.

0.03 

.02 

.06 

.19 

1.00 

1.96 

.88 

.37 

.26 

.38 

.30
174 SURFACE WAtEB SUl^LY, 1921, PAKT V.

SAUQAMON Rim WEAR OAKPOBD Hl»

LOCATION. In sec. 6, T. 19 N., R. 7 W. third principal meridian, at highway 

bridge 3 miles northeast of Oakford, Menard County, 2£ miles above Chicago, Peoria & St. Louis Railway bridge, and If miles above mouth of 

Crane Creek.

DKAINAGE AKEA. 5,000 square miles.

RECOKDS AVAILABLE. October 26, 1909, to June 30, 1911; December 10, 1911, 

to March 31, 1912; August 25, 1914, to June 11, 1919; and March 18 to 

September 30, 1921.

GAGE. Chain gage attached to bridge; read by Harm Otto and J. E. Moss.

DISCHAKGE MEASUKEMENTS. Made from downstream side of bridge.

CHANNEL AND CONTKOL. Bed composed of sand and fine gravel; shifting. Banks 

low and subject to overflow. The river for some distance above and below 

station has been dredged and straightened, thus increasing the slope and disturbing the regimen of flow.

EXTKEMES OP DISCHABGE. Maximum stage recorded during year, 12.75 feet 

April 30 (discharge, 12,000 second-feet); minimum stage, 1.95 feet September 4 and 5 (discharge, 545 second-feet).

1909-1912; 1914-1919; 1921: Maximum discharge recorded, 33,300 second-feet June 8 and 9, 1917 (determined from extension of rating curve); 

minimum discharge recorded, 85 second-feet August 30 and 31, November 

28, and December 2, 1914.

ACCTTOACY. Stage-discharge relation practically permanent. Rating curve well 

defined between 400 and 8,000 second-feet; fairly well defined beyond these 

limits. Gage read to quarter-tenths once daily. Daily discharge ascertained 

by applying daily gage height to rating table. Records good.

Discharge measurements of Sangamon River near Octkford, III., during the year

ending Sept. SO, 1921.

Date.

Dec. 16

16

Mar. 10

*>

Made by 

L. G. Williams

.....do ...............

Gage 

height.

Feet. 

1.95

1.95

3.54

Discharge.

See.-ft. 

571

573

1,660

Date.

Apr. 20

May 5

Made by 

L. G. Williams _ ...

.....do...... . ..... 

H. E. Grosbach ____

ii i{Eut*

Feet. 

7.84

9.72

2.31

Discharge.

8ee.-ft. 

6,330

7,390

702
UPPER MISSISSIPPI BIVEE BASEST k

Dotty discharge, in second-/^, of Sanc/amo® River near Oakford, III., for the year

ending $ept. SO, 1921.

Day.

1 . _ ......................................

2... .._... _ .- ._ _ .-....

3

4. .... .

5 -... . . .-. . ._

«- ....... . --.- .... _.-

7...-.-..,..... ......... ...................

8....................... ...................

9.......... 

10...........................................

11......... ............... .................

IS..................... ........................

13. . -. . .. .__..

14 .... ..................... ......

 16 ...... ....... . . . . ......

18 .,.... ................................

17....... ............. ......................

18 .

19..-..... ................................

20, .. .......................... ..... ..

21 ............. .............................

22

23............. ................................

24........ _..._ 

26 .

26 ..!...-. ........ _....._... ........

27............ ................. ................

28.... __.... ............ ...........

29......... ....................... .............

30 ....

31 ._... .. _. 

| Mar.

2,380

2,220

2 fWl

1,980

1,900

2,060

2,380

3,330

4,410

5,080

5,900

6,560

9,200

10,400

Apr.

10,400

10,190

10,200

9,500

9,200

8,780

5,900

4,780

4,140

3,690

3,420

3,150

2,970

3,060

2,970

3,240

3,960

4,780

5,280

5,280

5,380

5,380

6,450

6,680

6,680

6,920

8,220

10,100

11,400 19 flfto

May.

11,700

11,106

9,500

8,500

7,540

6,450

5,280

4,680

4,320

3,870

3,600

3,420

3,240

2,880

2,700

2,540

2,460

2,220

2,060

2,060

1,900

1,900

1,740

1,740

1,600

1,530

2,060

2,790

2,540 9 MO

2,220

June.

2,388

4,140

4,500

5,480

3,240

2,620

2,060

1,900

1,740

1,600

1,460

1,820

1,180

1,180

1,320

2,300

1,900

1,740

1,740

1,320

1,180

1,180

1,820

2,060

2,220

2,060

1,740

1,600

1,390

1,320

July.

1,250

1,180

1,040

1,390

1,180

820

645

570

570

Aug.

1,040

790

1,740

1,180

1,180

1,320

1,600

1,180

1,180

1,040

790

2,060

2,700

1,600

d, 320

1,040

910

700

Sept.

645

595

545

545

1,460

4,320

4,680

4,140

3,600

3,060

2,540

1,900

1,740

1,180

1,460

1,320

1,180

1,180

1,180

1,600

1.320

1?32Q

1,320

1,180

1,740

1,180

1,600

1,900

2,460

2,460

NOTE. No record July 10 to Aug. 13, discharge not determined.

discharge of Sangamon River near Oakford, III., for the year ending Sept. 

30, 1921.

[Drainage area, 5,000 square miles.]

Month.

March 18-31 ......... .....................

April..... ...................................

May ........................... ... .......

June. _____________________

July 1-9... ..................................

August 14-31

September.. .................................

Discharge In second-feet.

Maximum.

10,400 

12,000 

11,700 

5,480 

1,390 

2,700 

4,680

Minimum.

1,900 

2,970 

1,530 

1,180 

570 

700 

545

Mean.

4,280 

6,470 

3,940 

2,060 

938 

1,300 

1,840

Per

square 

mile.

0.856 

1.29 

.788 

.412 

.188 

.260 

.368

Kun-ofE 

in inches.

0.45 

1.44 

.91 

.4$ 

.06 

.17 

.41

SOUTH FOEK OF SANGAMON BIVEE AT POWEB PLANT NEAE TAYLOEVHIE, HI.

LOCATION. In sec. 14, T. 13 N., R. 3 W., at Chicago & Illinois Midland Railroad 

 bridge 6 miles northwest of Taylorville, Christian County, 500 feet east of

power plant of Central Illinois Public Service Co., 5 miles below mouth of

Bear Creek, and 8 miles below station formerly maintained at Wabash

Railroad bridge. 

DRAINAGE AREA. 510 square miles (measured on map issued by United States

Geological Survey; scale, 1 to 500,000). 

RECORDS AVAILABLE. May 18, 1917, to September 30, 1921. 

GAGE. Chain gage attached to bridge; read by H. Hendricks.
176 SUBFAGE WATEB SUPPUY, Il92l, PART V.

DISCHARGE MEASUREMENTS. Made from upstream side of bridge or by

CHANNEL AND CONTROL. Bed composed of soft mud; likely to shift.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 16.85 feet

March 30 (discharge, 2,720 second-feet); minimum stage, 3.13 feet October

15-17 and 19-22 (discharge, 0.01 second-foot).

1917-1921: Maximum stage recorded, 26.6 feet June 6, 1917 (discharge,

10,400 second-feet); minimum stage same as for 1921.

A stage of about 27.3 feet in the present gage is said to have been reached

January 31, 1916 (discharge, 11,300 second-feet). 

DIVERSIONS. On an average, about half a second-foot of water is used for boiler

feed and other purposes at the power plant. 

ACCURACY. Stage-discharge relation practically permanent during year; not

affected by ice. ,Rating curve well defined between 50 and 1,500 second-feet;

fairly well defined below 50 and between 1,500 and 6,000 second-feet* Gage

read to hundredths once daily. Daily discharge ascertained by applying

daily gage height to rating table exdept as noted in footnote to daily-discharge

table. Records good for medium stages; otherwise fair.

Discharge measurements of South Fork of Sangamon River at power plant near 

Taylorville, III., during the year ending Sept. SO, 1921.

[Made by H. E. Grosbach.]

Date.

Jan. 7 . . ................ ..........1... ................................ .

A^f.^............ ........................................... ... ....................

Gage 

height.

Feet. 

4.87

12.78

Discharge.

Sec.-ft. 

59.8-

1,100

Daily discharge, in second-feet, of South Fork of Sangamon River at power plant 

near Taylorville, III., for the year ending Sept. 80, 1921.

Day.

l . .... . .

2 ... ...

3.............

4. __ ........

5.............

6.............

7.... .........

8.............

9.............

10.. ...........

11. ............

12.............

13.............

14.............

15.... .........

16.............

17... ..........

18.............

19.............

20.............

21.............

22.............

23.............

24.............

25.............

26.... ...... ...

27... 

28............

29.......... 

30 ..........

31.............

Oct.

7-0

4.9

4.9

3.2

2.4

1.5

1.5

.6

.6

3.2

2.4

1.5 

.15

.03

.01

.01

.01

.03

.01

.01

.01

.01

.02

.02

.03

.03

25

20

7.0 ,

5.9

7.2

Nov.

5.9

4.9

3.2

4.9

4.0

4.0

4.0

3.2

3.2

2.4

1.7

1.0

.6

1.0

1.5

2.0

1.8

1.5

2.0

16

1 ^

1.0

.6

1.3

2.0

2.3

3.0

3.2

2.6

Dec.

2.6

3.2

4.0

16

34

oa

21

14

11

16

29

34

on

34

34

36

36

38

39

36

34

32

39

44

39

34

8.2

8.2

Jan.

67

93

96

100

84

68

52

39

34

V)

29

97

29

9O

15

13

1Q

17

19

34

V)

25

23

21

46

70

73

Feb.

67

70

73

67

64

61

58

82

180

1fi4.

149

1OO

114

86

79

73

67

61

58

55

54

52

49

46

39

36

Mar.

36

36

34

34

33

32

34

142

333

403

300

232

463

487

415

367

223

188

156

156

142

205

250

501

752

975

1,310

1,850

2,540

2,720

2,260

Apr.

1,730

1,310

1,250

680

415

300

300

300

344

415

300

250

223

260

260

488

715

975

1,080

1,020

771

535

715

791

616

811

1,620

1,890

1,850

1,650

May.

1,440

975

875

680

439

427

415

300

280

223

214

172

128

172

156

135

121

121

121

114

100

93

90

86

76

76

114

128

121

101

81

June.

61

49

46

44

39

34.

32

29

29

29

32

34

29

216

403

573

280

121

79

78

76

93

121

196

142

110

79

70

55

58

July.

34

sa.

28

22

17

11

9.7

300

114

55

34

11

9.7

8.4

7.2

5.9

10

14

1,690

1,970

1,580

680

205

138

70

76

58

39

156

300

271

Aug.

242

214

697

680

418

156

76

58

42

76

708

1,340

875

697

573

300

172

616

462

309

156

124

93

100

214

106

70

58

42

44

Sept.

36

32

27

51

75

100

90>

58

42

36

29

27

23

20

18

18

21

18

16

25

34

67

44

.34

433

832

900

1,160

1,370

1,280

NOTE. Discharge interpolated, because of missing gage heights Oct. 5,11,23,24, Nov. 10,11,15,17,20,21, 

22, 24, 26, Dec. 20, 22, Jan. 3, 5, 6, 29, Feb. 5. 23, Mar. 5, 24, Apr. 16, May 6, 30, 31, June 7,14, 20, 26, July 3, 

4, 5,14, 15, 17, 24, 31, Aug. 1, 5, 11, 19, 20, 27, Sept. 4, 5, 20, and 25.
UPPER MISSISSIPPI HIVER BASIS'. 17T

Monthly discharge of South Fork of Sangamon River at power plant near Taylonrille, 

III, for the year ending Sept. 80, 1921.

[Drainage area, 510 square miles.] i

Month.

October ____________________

November ___________________

December ___________________

January __________________

February ___________________

March. ____________________

April _.___..____.__ ____

May ______________________

June ______________________

July . .....................................

August __________ _____ .......

September ___________________

The year. _____ . _________

 Discharge in second-feet.

Maximum.

25 

5.9 

44 

100 

180 

2,720 

1,890 

1,440 

573 

1,970 

1,340 

1,370

2, 720

Minhniifln,

0.01 

.6 

2.0 

13 

36 

32 

223 

76 

29 

5.9 

42 

16

.01

Mean.

3.20

2.48 

25.7 

41.8 

78.6 

568 

795 

277 

108 

257 

318 

231

226

Per 

square 

mile.

0.0063 

.0049 

.050 

.082 

.154 

1.11 

1.56 

.543 

.212 

.504 

.624 

.453

.443

Run-off 

in inches.

0.01 

.01 

.06 

.Ofr 

. 1& 

1.28 

1.74

.ea

.24

.58 

.72 

.51

6.0$

H|

CROOKED CREEK AT EIPIEY, HI.

LOCATION. In sec. 33, T. 1 N., R. 2 W., at highway bridge a quarter of a mile 

east of Ripley, Brown County.

DRAINAGE AREA. 1,310 square miles (measured on map issued by United States 

Geological Survey; scale, 1 to 500,000).

RECORDS AVAILABLE. March 12 to September 30, 1921.

GAGE. Chain gage attached to downstream handrail of bridge; read by Mrs* 

Darius Seckman.

DISCHARGE MEASUREMENTS. Made from downstream side of bridge.

CHANNEL AND CONTROL. Bed composed of soft mud and clay; likely to shift. 

Control not well denned. Banks high and are overflowed only in extreme 

high water.

EXTREMES OF DISCHARGE. Maximum stage recorded during period of record, 

17.39 feet September 5 (discharge, 5,890 second-feet); minimum stage,. 

1.88 feet September 1 (discharge, 15 second-feet).

On an unknown date a stage of about 26 feet was reached as evidenced 

by old high-water marks near gage.

ICE. No information.

ACCURACY. Stage-discharge relation permanent during period of record. Rating curve well denned between 30 and 5,000 second-feet; fairly well defined 

beyond these limits. Gage read to hundredths once daily. Daily discharge ascertained by applying daily gage height to rating table. Records 

good.

Discharge measurements of Crooked Creek at Ripley, III., during the year ending

Sevt. 80, 1921.

Date.

Dec. 18

18

Mar. 12

Made byWilliams and Stein-

__ do. . 

L. G. Williamso ___

a,

Feet. 

2.10

2.10

4.52

Discharge.

Sec.-ft. 

31.1

30.3

407

Date.

29

Made by 

L. G. Williams ..... 

 do... 

 do....... . .. .

Gage 

height.

Feet. 

11.64

13.25

9.92

Discharge.

Sec.-ft. 

2,820*

3,66ft

2,100'

a Engineer, U. S. Public Health Service.
178 SUBFACE WATEE SUPPLY, 1921, PAKT V.

Daily discharge, in second-feet> of Crooked Creek at Ripley, III.r for the year

Sept. §0, 1921.

Day.

1 ____ .. ____________ ... ... . 

2............................................

3............................................

i.. ..........................................

5............................................

6............................................

7............................................

8... _ ..

9............................................

W.. ..........................................

11. ...........................................

12............................................

^. .................................. ........

U.. ..........................................

15... .........................................

16.............. ..............................

17.................................... .......

18... .........................................

19-... 

20---. .-- . ..- ....................

21 .........................................

22............................................

23.-......... ..............................

24---........ ..............................

25.--.....-... .............................

26............................................

27.............. _ . 

28...... ....... . ...... 

29................. _ ............ __ ........

30-...... ........... ....................

31........ ..._.. ................

Mar.

400

300

320

1,120

1,180

585

320

240

195

485

485

280

225

180

195

300

280

158

165

Apr.

108

102

95

89

89

83

83

83

83

128

114

77

77

77

83

1,150

2,280

2,860

1,760

1,150

535

2,640

2,780

1,720

1,000

2,120

4,750

4,420

4,270

2,200

May.

1,640

1,330

1,760

1,150

790

710

585

535

440

225

460

880

440

340

260

210

210

195

180

165

158

150

135

128

121

114

1,760

1,500

1,150

635

142

June.

135

128

610

510

510

485

340

225

128

83

89

95

95

. 89

89

71

57

44

142

195

1,210

790

735

685

820

1,030

2,460

3,090

1,800

1,210

July.

685

460

195

150

121

95

83

71

59

52

40

47

42

38

36

35

35

34

40

158

320

260

59

48

34

31

31

180

685

735

850

Aug.

1,540

3,970

3,370

2,200

1,180

165

142

108

78

48

560

280

135

1,240

610

340

150

128

102

89

77

68

53

42

27

21

20

19

17

17

15

Sept.

15

35

150

195

5,800

5,110

4,690

3,770

400

400

710

1,120

440

280

1,360

1,800

2,»10

2,040

3,000

940

710

1,920

1,840

1,430

880

440

300

300

225

210

Monthly discharge of Crooked Creek at Ripley, III., for the year ending Sept. SO, 

[Drainage area, 1,310 square miles.]

Month.

March 12-31 ___ . __ .... __ ..... _ . .....

April........................................

May., _____________________

June _____________________

July.. __ ........................... __ ....

September ____________ ............

Discharge in second-feet.

Maximum.

1,180 

4,750 

1,760 

3.090 

850 

3,970 

5,890

Minimum.

158

77 

114 

44 

31 

15 

15

Mean.

382 

1,230 

597 

598 

184 

542 

1,450

Per 

square 

mile.

0.292 

.939 

.456 

.456 

.140 

.414 

1.11

Eun-ofl 

in inches.

0.22 

1.05 

.53 

.51 

.16 

.48 

1.24

MACOUPDT CREEK NEAR KANE, III.

LOCATION. In sec. 7, T. 9 N., R. 11 W., at Chicago & Alton Railway bridge 3

miles northwest of Kane, Greene County. 

DRAINAGE AREA. 865 square miles (measured on map issued by United States

Geological Survey; scale, 1 to 500,000). 

RECORDS AVAILABLE. March 11 to September 30, 1921. 

GAGE. Vertical staff; lower section on old piling between piers, intermediate

section on left pier, high-water section on transmission line pole on left bank

20 feet above bridge; read by Claude Linn. 

DISCHARGE MEASUREMENTS. Made from bridge or by wading; at high water

also from bridges over flood channels a quarter of a mile south and an eighth

of a mile north of main channel.
UPPER MISSISSIPPI RIVER BASIN.

CHANNEL AND CONTROL. Control at low and medium stages, rock fill ufider 

bridge; affected by drift on piers and old piling. Channel below bridge composed of clay and heavy mud; likely to shift. At high stages water overflows above gage into two high-water channels; affected by drift and vegetation.

EXTREMES OP DISCHARGE. Maximum stage recorded during period of record, 18.1 

feetMarch 29 and April 28 (discharge, 8,320 second-feet); minimum stage, 

0.50 foot July 31 (discharge, 13 second-feet).

High water of 1915 reached a stage of approximately 26.5 feet on present 

gage (discharge not determined).

ICE. No information.

ACCURACY. Stage-discharge relation affected by drift and brush on bridge piers 

and old piling, but the backwater effect was probably practically unchanged 

throughout the period of record, giving in effect a practically permanent 

stage-discharge relation. Rating curve well defined between 20 and 1,500 

second-feet; fairly well defined beyond these limits. Gage read to half-tenths 

once daily. Daily discharge ascertained by applying daily gage height to 

rating table. Records good to fair for medium and ordinary low stages; 

fair to poor for high and extremely low stages.

Discharge measurements of Macoupin Creek near Kane, III., during the year ending

Sept. SO, 1921.

Date.

Dec. 17

Mar. 11

Apr. 19

Made byWilliams o and SteinL. O. Williams. 

Gage 

height.

Feet. 

2.59

4.56

8.21

Discharge.

Sec.-ft. 

162

452

1,070

Date.

Apr. 28

Aug. 3

25

Made by 

L. G. Williams. .

..... do 

. .do-. 

Gage 

height.

Feet. 

18.06

2.45

1.00

Discharge.

Sec.-/*. 

8,240

120

25.9

o Engineer, U. S. Public Health Service.

Daily discharge, in second-feet, of Macoupin Creek near Kane, III., for the year ending

Sept. SO, 1921.

Day.

1.. __ .... ________ . ___ ...... _ .

2... ....................

3 ................ ....... ................

4 _ .... . _ ................... ..............

5. ..._ . .............

6. __ ............ . .. .... .............

7.. . .. ... ............

8. ......... ...............................

«.... .. ........ ...... ...................

10...... ......................................

11..... ... . ... .

12.... _ ... __ ._

18... ....... ....... ....... ....

14.. __ . __ ....... ....... ....... ......

15 _ ............ ................

16 .................. ....... ........ ........

17 ........ ... ... ................ is:... ....... . ..... .......

19. ... ..... ..............

20

21..: _ .. _ . 

22.. - -

23 ........ . . .

24.. _ . _ ......... ........ ........

25...... ......... .. ....

26...... 

27- ... ... .............

28... ....... ... ....... - _. _

29.. .. . .............

30. __ . ..

31 . 

Mar.

x

455

335

814

670

425

305

248

192

192

157

220

1,330

1,010

1 9^n

3,000

3,150

4,400

7,060

8,320

7,420

6,210

Apr.

2,240

742

575

515

440

395

365

335

320

276

234

220

206

670

1,310

2,560

3,360

2,610

1,290

670

530

560

3,050

2,950

814

3,250

6,890

8,320

7,420

6,210

May.

1,860

1,290

1,250

950

670

545

470

380

350

575

1,310

1,480

622

425

. 290

276

220

192

178

164

143

136

118

106

90

100

90

136

143

90

73

June.

58

54

73

SO

62

54

45

39

136

81

395

455

234

220

206

365

220

365

130

150

2,200

262

276

688

706

766

290

143

150

220

July.

192

58

51

69

45

36

32

590

90

39

26

26

22

20

20

143

51

39

26

164

276

164

51

51

42

26

17

18

16

15

13

Aug.

24

178

178

90

62

73

1,110

622

192

106

51

425

192

500

425

136

81

500

515

276

90

51

26

26

26

26

23

42

34

45

23

Sept.

17

16

16

14

17

410

192

136

118

192

136

36

36

4S

90

395

136

100

51

136

545

276

100

98

560

706

41®

164

112

832
180 SURFACE WATER SUPPLY PART V.

Monthly discharge of Macoupin Creek near Kane, III., for the year ending Sept. SO,

1921.

[Drainage area, 865 square miles.]

Month.

March 11-31 -. .-._.-...._......

April.... ......... ............. ..............

May

June ______________________ July

August. _ ..... ____ . __________

Discharge in second-feet.

Maximum.

8,320 

8,320 

1,860 

2,200 

590 

1,110 

832

Minimum.

157 

206 

73 

39 

13 

23 

14

Mean.

2,240 

1,980 

475 

302 

78.3 

198 

203

Per 

square 

mile.

2.59 

2.29 

.549 

.349 

.091 

.229 

.235

Kun-off 

in inches.

2.02 

2.56 

.63 

.39 

.10 

.26 

.26

KASKASKIA RIVER AT VANDAIIA, ILL.

LOCATION. In sec. 16, T. 6 N., R. 1 E. third principal meridian, at highway

bridge at east end of Main Street, Vandalia, Fayette County, 3J miles

above Hickory Creek. 

DRAINAGE AREA. 1,980 square miles. 

RECORDS AVAILABLE. February 26, 1908, to December 31, 1912; August 11,

1914, to September 30, 1921. 

OAGE. Chain gage attached to bridge; read by Wilson Haley. Gage was

removed March 13 to May 16 and June 5-24, during construction of new

bridge. 

DISCHARGE MEASUREMENTS. Made from downstream side of bridge or by

wading. 

CHANNEL AND CONTROL. Bed composed of sand and gravel; clean; likely to

shift. Measuring section in a pool. Control not well defined; shifting. 

EXTREMES OP DISCHARGE. Maximum stage occurred during period of no record;

minimum stage recorded, 0.98 foot November 14 (discharge, 42 second-feet). 

1908-1912; 1914-1921: Maximum stage recorded, 23.0 feet June 5, 1917

(discharge, 16,400 second-feet) ; minimum discharge, 3.5 second-feet August

22, 1911. 

ACCURACY. Stage-discharge relation practically permanent during year.

Rating curve well defined between 20 and 11,000 second-feet. Gage read

to hundredths once daily, except during periods March 13 to May 16 and

June 5-24, when new bridge was being built and observations were discontinued. Daily discharge ascertained by applying daily gage height to

rating table except for periods during which gage was not read, as indicated

in footnote to table of daily discharge. Records good.

Discharge measurements of Kaskaskia River at Vandalia, III., during the year ending Sept. SO,

[Made by H. E. Qrosbach.]

Date.

May 17.. .............. .... ____ . _ -. ...- _..... . - _ ..

Aug. 20 . --

Gage 

height.

Feet. 

3.26

4.25

2.42

Discharge.

Sec.-ft. 

364

584

222
UPPER MISSISSIPPI BIVEE BASIN,

Daily discharge, in second-feet, of Kaskaskia River at Vandalia, III., for the year

ending Sept. 80, 1921.

Day.

1. __ ....

2..........

3. ......

4..........

5... .......

6... ....

7..........

8..........

9... _ ....

10.... ......

ll-_. . ......

12....--.-..

13..........

14..........

15--........

16- 

17.... ...

18- 

19- .......

20- ......

21 ___ .....

22

23 .

24.... ......

26 

26 _ ........

27.--. .....

28- -

29 .......

30. 

31 .......

Oct.

96

72

67

62

58

58

54

54

46

50

50

50

46

46

46

43

46

46

50

43

43

46

46

43

54

67

84

84

90

84

84

Nov.

78

72

67

67

62

62

62

58

58

54

54

46

46

43

46

46

46

46

50

54

54

58

54

54

54

54

54

54

54

46

Dec.

58

KQ

58

58

102

166

ISO

138

108

102

96

108

126

120

126

126

126

102

78

67

90

114

180

210

138

132

126

120

114

108

108

Jan.

152 oofi

1,160

510

<tnn

4nn

360

360

Qflft

320

280

225

195

166

159

145

138

159

195

173

166

195

195

180

180

173

166

159

260

340

Feb.

360

OQA

340

o^ft

400

CQC

4flA

485

7KA

780

585

560

535

510

420

400

360

gon

510

340

9fiA

260

260

240

240

94ft

225

Mar.

225

210

01 ft

195

180

280

380

810

585

610

JMA

1, 190

May.

585

560

535

485

460

440

420

400

360

340

ann

460

420

Mf\

440

June.

485

585

635

610

585

585

460

750

810

720

........

July.

420

320

260

240

195

173

195

goo

610

240

173

138

120

120

195

114

84

78

90

635

260

108

108

84

72

72

58

58

58

54

50

Aug.

50

102

54

72

84

84

96

210

120

78

67

67

810

400

210

145

114

1,300

360

180

152

96

78

485

1,680

990

260

195

180

138

108

Sept.

84

78

67

62

195

225

320

320

440

460

690

560

510

400

320

225

195

145

138

138

138

132

132

120

120

2,000

2,920

2,840

1,640

1,190

NOTE. Observations discontinued Mar. 13 to May 16 and June 5-24, owing to removal of gage during 

construction of new bridge; discharge not determined. Discharge interpolated Dec. 26-28, on account of 

lack of gage readings.

Monthly discharge of Kaskaskia River at Vandalia, III., for the year ending Sept.

SO, 1921.

[Drainage area, 1,980 square miles.]

Month.

February ____ ..... _____ , .....

Mareb, 1-12 . 

May 17-31 _ . __ ...... ...

July ............... .... . ...

August ____________________

Discharge in second-feet.

Maximum.

96 

78 

210 

1,160 

780 

1,190 

585 

900 

1,300 

2,920

Minimum.

43 

43 

58 

 138 

225 

180 

340 

50 

50 

62

Mean.

58.3 

55.1 

114 

292 

415 

476 

450 

203 

289 

560

Per 

square 

mile.

0.029 

.028 

.058 

.147 

.210 

.240 

.227 

.103 

.146 

.283

Run-off 

in inches.

0.03 

.03 

.07 

.17 

.22 

.11 

.13 

.12 

.17 

.33
182 SUBFACE WATER SUPPLY, 1921, PAET V, 

KASKASKIA RIVER AT NEW ATHENS, HI.

LOCATION. In W. $ NE. J sec. 28, T. 2 S., R. 7 W. third principal meridian, 

at Illinois Central Railroad bridge 600 feet north of railroad station at 

New Athens, St. Glair County, 1 mile below mouth of Silver Creek, and £ 

miles above mouth of Lively Creek.

DRAINAGE AREA. 5,220 square miles.

RECORDS AVAILABLE. January 23, 1907, to December 31, 1912; June? 22, 1914,. 

to September 30, 1921, when station was discontinued. Gage height of 

river was taken on Wednesday and Thursday mornings from January 23, 

1907, to October 28, 1909, by C. J. von Roth Roffy for the New Athens 

Journal, in which they are published. These heights have been reduced topresent datum; maximum error probably not more than 0.4 foot, decreasing with increase of stage. Record is authentic.

GAGE. Chain gage attached to bridge; installed November 1, 1909; read by 

Henry Hoffman.

DISCHARGE MEASUREMENTS. Made from downstream side of bridge to> which) 

gage is attached or from highway bridge about 500 feet downstream.

CHANNEL AND CONTROL. Bed composed of sand and gravel; shifting. Backwater from Mississippi River occurs when a stage of about 15 feet and 

above is reached on the United States Weather Bureau gage at Chester, 111..

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 22.88 feet,. 

April 4 (discharge, 13,300 second-feet); minimum stage, 2.77 feet Novemtber 23 and 24 (discharge, 130 s'econd-feet).

1907-1912; 1914-1921; Maximum stage recorded, 35.7 feet August 28,, 

1915 (discharge, 63,100 second-feet); minimum stage, 2.08 feet August 10,, 

1914 (discharge, 102 second-feet).

ICE. Stage-discharge relation affected by ice at times.

ACCURACY. Stage-discharge relation changed during high water in April;: 

affected by backwater from Mississippi River during several periods; not 

affected by ice. Two fairly well defined rating curves used for periods of" 

no backwater from Mississippi River. Gage read to hundredths once dailyDaily discharge, during periods of no backwater, ascertained by applying 

daily gage height to rating table; during periods of backwater, by applying 

to rating table daily gage height corrected for backwater effect by amountsdetermined from results of a number of discharge measurements made during: 

various conditions of backwater; shifting-control method used April 1-16* 

Records fair except for periods of backwater, for which they are poor.

Discharge measurements of Kaskaskia River at New Athens, III., during the year

ending Sept. SO, 1921.

[Made by H. E. Qrosbach.]

V

Date.

Jan. 10 ................-.......:.. ............. .. . ....... 

Aug. ^l. ........................... ... ..............................................

Gage 

height.

Feet. 

5.43

6.14

Discharge.

Sfec.-/«. 

744

1,080
UPPER MISSISSIPPI BIVEB BASIN.

Daily discharge, in second-feet, of Kaskaskia River at New Athens, III., for the 

year ending Sept. SO, 1921.

Day.

1 ...

2...... ... ..

3 

4...........

5.. 

6...........

7.. __ . ....

8 .....

9... _ . _ .

10 .. 

11. __ ......

12...........

13...........

14 ..

15 __ ......

16...........

17...........

18...........

19...........

20...........

21...........

22... ........

23.. 

24...........

25 

26

27... ........

28. .......

29... ____ .

30 .......

31...........

Oct.

300

230

260

325

300

250

240

220

220

200

200

200

160

160

170

170

160

160

160

160

160

150

150

150

150

160

160

170

170

180

180

Nov.

200

200

210

220

210

190

190

180

170

160

160

150

150

150

150

160

150

140

140

140

140

140

130

130

140

140

140

140

140

140

Dec.

140

14O

140

160

160

180

220

375

500

525

425

350

300

280

4nn

400

300

300

325

300

375

650

950

920

1,040

980

950

775

700

650

600

Jan.

650

1,820

2,410

3,150

3,300

2,410

1,440

1,040

860

750

700

675

2,100

2,500

3,000

1,800

750

400

400

400

400

425

400

400

425

475

550

600

575

600

1.010

Feb.

1,220

1,520

1,440

1,160

920

775

725

775

1,220

1,600

i ofin

1,920

1,690

1,360

1,160

980

920

830

775

700

650

600

575

550

525

500

500

475

Mar.

475

450

450

450

425

425

500

920

1,400

2,4V)

2,320

2,900

5 200

5,570

5,990

6,440

6,360

4,960

2,900

2,000

1,600

1,600

1,820

3,300

6,440

7,270

8,600

10,100

12,200

12,700

13.000

Apr.

13,200

13,000

13,200

13,800

tn OAA

12,100

11,500

11,000

10,500

9,580

7,950

4,990

3,790

2,650

2,550

2,450

3,200

4,210

4,990

o onrt

10,000

May.

11,000

| 6,500

3,490

O OKA

5,000

1,200

1,120

1,030

972

916

888

916

972

1,060

1,120

1.060

June.

888

832

1,440

1,000

1,360

1,060

QAl

860

950

916

1,600

1,700

2,600

1,500

July.

1,000

450

720

944

776

612

479

427

375

360

325

375

350

325

720

748

558

453

375

325

300

288

275

Aug.

250

326

288

238

225

375

427

639

401

325

453

401

375

631

1,150

1,030

944

720

585

427

720

1,000

720

605

1,060

2,350

1,650

1,650

1,650

888

666

Sept.

505

407

427

401

350

310

275

300

360

2,850

1,650

916

693

666

693

666

639

586

505

776

612

685

750

3,500

NOTE. Stage-discharge relation affected by backwater from Mississippi River, Apr. 20 to May 8, May 11-21, June 9-19, June 24 to July 10, and Sept. 23-30; discharge ascertained by method described 

under "Accuracy" in station description. Discharge estimated Jan. 16, Mar. 27, and Sept. 6, on 

account of lack of gage readings. Braced figures show estimated mean discharge for periods included.

Monthly discharge of Kaskaskia River at New Athens, III., for the year ending

Sept. SO, 1921.

[Drainage area, 5,220 square miles.]

Month.

January

April..... ............. ....... ...............

July... .... . _

September. ............. ...... .......... .

The year... __ . ________ . ...

Discharge in second-feet.

Maximum.

325 

220 

1,040 

3,300 

1,960 

13,000 

13,300

2,600

2,350 

3,500

13,300

Minimum.

150 

130 

140

400 

475 

425 

2,450 

888

275 

225 

275

130

Mean.

194 

160 

468 

1,170 

1,000 

4,230 

7,540 

2,300 

1,200 

560 

741 

798

1,700

Per 

square 

mile.

0.037 

.031 

.090 

.224 

.192 

.810 

1.44 

.441 

.230 

.107 

.142 

.153

.326

Run-off 

in laches.

0.04 

.03 

.10 

.26 

.20 

.93 

1.61 

.51 

.26 

12 

.16 

.17

4.39

BIG MUDDY RIVER AT PIUMFEELD, ILL.

LOCATION. In W. f sec. 20, T. 7 S., R. 2 E., at highway bridge in Plumfield, 

Franklin County, 6 miles west of West Frankfort, If miles below mouth of 

Middle Fork, and 2 miles below station formerly maintained at Chicago, 

Burlington & Quincy Railroad bridge.

DKAINAGE AREA. 753 square miles.

RECOKDS AVAILABLE. August 18, 1914, to September 30, 1921. From June 

16, 1908, to December 31,1912, records were obtained at Chicago, Burlington 

& Quincy Railroad bridge, 2 miles upstream.
SUBFACE WATER StTPPI/Y, 1921, PART V.

GAGE. Chain gage attached to bridge; read by Louis Robertson. ;! '' 

DISCHAEGE ME ASITBEMENTS. Made from downstream side of bridge or by wading. 

CHANNEL AND CONTROL. Control is about a quarter of a mile below gage;

somewhat shifting. Point of zero flow is at a stage of about 0.6 foot. 

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 19.2 feet

March 31 (discharge, 4,740 second-feet); minimum stage, 0.69 foot August

1 (discharge, 0.4 second-foot).

1914-1920: Maximum stage recorded, 30.2 feet February 1,1916 (discharge,

16,300 second-feet); minimum discharge, no flow, August 18-26, 1914. 

ACCURACY. Stage-discharge relation practically permanent during year; not

affected by ice. Rating curve well defined. Gage read to hundredths once

daily. Daily discharge ascertained by applying daily gage height to rating

table except for days when gage was not read, for which it was ascertained

by interpolation. Records good.

Discharge measurements of Big Muddy River at Plumfield, III., during the year

ending Sept. 30, 1921.

[Made by H. E. Grosbach.]

Date.

Jan. 12 ___________ __________________________________

Aug. 23. .- - --- . 

Gage 

height.

Feet. 

2.70Q-1 .Jl

Discharge.

Sec.-ft. 

94.2

1.0

Daily discharge, in second-feet, of Big Muddy River at Plumfield, III., for the year

ending Sept. 30, 19%1.

Day.

1 _ 

2...... ........

3 .. ...

4 ...

5 

6 

7.. __ .... ....

8.. .... .....

9 . .... ..

10......... ..

11.... ..........

12

13 

14...... ... ..

15 _ 

16....... ..

17 

18. ______ ..

19 . 

20 

21. .............

22 

23 

24......... ..

25 

26. _ ..... __ .

27 

28 

29 .

30..... ..

21

Oct.

20

14

9.5

7.7

5.9

42

3.6

3.0

2.7

2.7

42

42

2.1

2.1

2.0

2.0

1.6

2.4

2 7

2.7

2.7

2.8

3.0

3.0

7.2

11

14

14

12

9.5

IQ

Nov.

31

48

42

94

55

31

22

18

16

13

10

9.0

8.0

6.5

6.0

8.5

8.2

7.8

7.8

7.0

8.2

8.5

10

10

9.8

9.5

9.5

12

13

12

Dec.

12

13

13

15

14

14

202

235

103

55

39

29

25

23

20

18

17

]7

23

22

320

618

946

1,120

997

510

213

171

131

90

85

Jan.

161

602

1,030

1,100

861

364

181

126

98

94

90

94

77

66

62

62

58

52

48

48

45

48

48

55

131

465

586

495

364

810

1,100

Feb.

1,270

1,060

602

296

ASfi

698

997

1,270

1,510

1,620

1,420

1,230

SU4

634

420

270

191

141

108

90

77

85

191

282

235

161

126

103

Mar.

85

73

62

52

45

39

36

39

73

336

450

1,010

1,350

1,470

1,510

1,550

1,700

1,800

1,820

1,290

586

526

465

1,030

1,410

1,650

1,880

2,520

3,220

4,390

4 74n

Apr.

4,460

3,670

9 79fl

1,820

980

556

131

108

282

540

540

270

141

151

258

495

602

296

218

141

103

85

141

172

202

602

1,370

1,620

1,800

1,800

May.

1,470

762

392

350

270

191

141

98

77

98

213

963

1,130

844

336

151

94

62

45

34

27

23

19

17

16

15

14

141

151

112

141

June.

85

62

44

25

18

10

12

11

9.5

8.8

6.2

6.2

6.2

8.5

14

18

364

258

185

112

77

618

714

778

282

176

69

55

73

103

July.

126

81

52

34

23

19

18

14

10

8.0

6.2

5.2

48

4.2

3.8

3.6

10

42

5.2

21

45

21

10

5.8

3,6

2.1

1.3

1.0

1.0

.8

.6

Aug.

0.4

23

36

235

94

90

258

126

45

39

25

16

11

11

12

23

13

7.2

5.5

3.2

2.6

2.0

1.6

5.0

17

49

81

170

258

131

77

Sept.

36

25

23

21

23

21

19

17

58

586

465

48

42

27

IS

13

9.0

7.0

5.5

4.4

9.8

12

121

778

1,080

963

618

258

126

912
UPPER MISSISSIPPI RIVER BASI3S".

Monthly discharge of Big Muddy River at Plumfield, III., for the year ending Sept*

SO, 1921.

[Drainage area, 753 square miles.]

Month.

April _ ..... _ .............................

July. . . 

Discharge In second-feet.

Maximum.

39

94 

1,120 

1,100 

1,620 

4,740 

4,460 

1,470 

778 

126 

258 

1,080

4,740

Minimum.

1.6 

6.0 

12 

45 

77 

36 

85 

14 

6.2 

.6 

.4 

4.4

.4

Mean.

7.02 

18.4 

197 

304 

587 

1,200 

876 

271 

140 

17.6 

60.2 

212

332

Per 

square 

mile.

0.009 

.024 

.262 

.404 

.780 

1.59 

1.16 

.360 

.186 

.023 

.080 

.282

.428

Run-off 

in inches.

0.01 

.0$ 

.30 

.47 

.81 

L83 

1.29 

.42 

.21 

.03 

.09 

.31

5.80

BIG MUDDY RIVER AT MURPHYSBORO, ILL.

*

LOCATION. In SW. J sec. 8, T. 9 S., R. 2 W., at lower highway bridge on South 

Twentieth Street, Murphysboro, Jackson County, a quarter of a mile below 

mouth of Louis Creek and Mobile & Ohio Railway bridge.

RECORDS AVAILABLE. December 6, 1916, to September 7, 1921.

DRAINAGE AREA. 2,170 square miles (measured on map issued by United States 

Geological Survey; scale, 1 to 500,000).

GAGE. Chain gage attached to bridge; read by Clarence Jacobs.

CHANNEL AND CONTROL. Bed composed of heavy clay; likely to shift. Backwater from Mississippi River occurs whenever the stage at the United States 

Weather Bureau gage at Chester, 111., is above about 10.0 feet.

DISCHARGE MEASUREMENTS. Made from downstream side of bridge or by wading.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 24.00 feet 

March 22 (discharge, 8,690 second-feet); minimum stage, 1.42 feet August 1 

(discharge, 1.0 second-foot).

1917-1921: Maximum discharge recorded, 15,600 second-feet January 10, 

1917; minimum stage recorded in 1921.

The highest known stage of this river occurred about February 2, 1916, 

when a height of 39.6 feet on the present gage was reached (discharge, from 

extension of rating curve, 28,000 second^eet).

ICE. Stage-discharge relation affected by ice during severe winters.

ACCURACY. Stage-discharge relation practically permanent during year except 

as affected by backwater from Mississippi River; not affected by ice. Rating curve fairly well defined. Gage read to hundredths once daily. Daily 

discharge ascertained by applying daily gage height to rating table except 

for periods of backwater from Mississippi River for which it was not determined (see footnote to table of daily discharge). Records good for medium 

stages; fair for very low and high stages.

Discharge measurements of Big Muddy River at Murphysboro, III., during the year

ending Sept. 30, 1921.

[Made by H. E. Grosbach.]

Date.

Aug. 22. ____ ... __ ..... __.. 

Gage 

height.

Feet. 

4.22

«3.04

Discharge.

See.-ft. 

293

84.8

a Stage-discharge relation affected by backwater from Mississippi River.
186 SUBFACE WATEE SUPPLY, 1921, PART V.

Daily gage height, in feet, of Big Muddy River at Mwphysboro, III., for the ye&r

ending Sept. SO, 1921.

Day.

1...... ........

12 

[3 

|4 .......

* 

6....... . ...

T. .... .........

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.

2.82

2.90

3.10

3.15

2.95

2.70

2.65

2.62

2.66

2.60

2.62

2.50

2.50

2.40

2.35

2.30

2.10

1.85

1.80

1.70

1.70

1.65

1.80

2.30

2.35

2.40

Z45

2.55

2.60

2.90

3.50

Nov.

3.10

3.00

3.05

2.90

2.85

2.80

2.75

2.70

2.70

2.75

2.80

2.75

2.70

2.70

2.65

2.60

2.55

2.50

2.50

2.45

2.42

2.40

2.30

2.20

2.10

2.10

2.05

2.00

2.05

2.10

Dec.

1.95

1 09

1.95

2.00

2.10

2.12

2.10

2.15

2.12

2.20

2.20

2.30

Z30

2,45

2.40

2.50

2.65

2.70

2.90

3.80

3.95

4.60

4.85

A on

5.00

5.40

5.90

6.30

6.50

7.90

8.10

Jan.

9.80

9 01

10.00

10.14

8.15

7.10'

6.55

6.30

5.30

4.25

4.10

3.90

^ 70

3.80

3.85

3.70

3.50

3.30

3.40

3.00

3.30

3 40

3.60

5.20

6.00

6.20

7.60

7.70

7.65

8.10

10.20

Feb.

13.90

13.60

14.05

12.35

12.10

10.54

12.05

10.15

8.10

7.20

6.40

5.00

4.50

i 40

4.45

4.35

4.25

4.25

4.20

4.15

4.20

4.20

4.25

4.25

4 30

4.40

4.60

4.40

Mar.

4.35

3.90

3.70

3.60

3.25

3.15

4.50

6.20

7.10

8.50

10.80

12.20

14.30

14.20

14.50

14.90

15.65

16.30

19.60

23.10

23.70

24.00

23.90

22.10

22.00

21.60

21.10

19.05

16.15

14.40

12.90

Apr.

11.65

11.40

11.15

10.20

9.15

8.65

8.10

7.90

7.85

7.80

6.10

6.05

5.SHO

6.70

7.10

7.40

8.35

7.95

7.90

8.10

8.15

8.20

8.55

8.60

10.10

12.05

14.20

16.80

20.68

20.64

May.

20.60

20.10

17.05

15.20

14.10

11.20

9.50

8.00

7.45

9.30

12.00

15.10

16.00

15.90

12.95

11.85

11.60

9.40

8.70

6.10

5.90

5.70

4.05

4.20

3.70

3.15

3.10

3.15

2.80

2.75

2.80

June.

2.90

3.10

3.15

3.35

3.30

3.45

4.16

5.80

6.70

7.70

7.76

7.80

5.96

5.60

5 15

4.90

5.10

5.65

5.20

5.50

5.65

6.60

6.70

6.90

7.00

7.65

8.50

8.70

9.30

11.30

July.

11.60

11.10

10.30

10.20

10.22

10.20

9.50

8.40

7.10

6.46

5.40

4.50

3.60

2.90

2.40

2.30

2.10

2.20

2.90

3.50

4.55

4.50

3.60

3.40

2.82

2.44

2.38

2.16

1.94

1.86

1.74

Aug.

1.42

1.86

2.45

4.45

4.50

7.85

a is

8.05

6.30

475

3.70

3.40

3.H)

2.95

7.30

8.15

6.45

5.35

5.10

4.80

3.70

3.04

2.90

3.15

3.45

4.35

Sept.

5.35

5.60

5.40

5.30

4.95

5.10

6.70

6.40

8.70

9.10

12.54

12.35

a 70

5.00

4.15

4.55

5.85

5.60

4.45

4.70

5.15

5.30

11.40

15.65

16.50

15.40

Daily discharge, in second-feet, of Big Muddy River at Murphysboro, III., /or the 

year ending Sept. SO,

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.- 

80...-... ................

31.... ...............

Oct.

90

100

' 130

106

on

75

70

75

70

70

61

61

52

48

43

27

12

9

5

5

4

9

43

48

52

56

66

70

100

180

Nov.

124

112

118

100

Qfi

90

85

80

80

85

90

85

80

80

75

70

66

61

61

56

52

52

43

35

27

27

24

20

24

27

Dec.

17

15

17

20

27

9Q

27

31

29

35

35

43

4Q

56

52

61

75

80

100

226

260

380

420

440

465

565

690

790

850

1,270

1,330

Jan.

1,840

1,900

1,900

1,940

1,360

1,030

880

7on

540

300

280

243

210

226

226

210

180

150

165

112

150

165

195

515

715

765

1,180

1,210

1,180

1,330 i o?n

Feb.

3,400

3,270

3,450

2,760

2,640

9 nsn

9 Ann

1,970

1,330

1,060

820

465

360

340

340

340

300

300

300

300

300

300

300

300

320

340

380

340

Mar.

340

243

210

196

144

.130

360

766

1,030

1,450

2,180

2,680

3,600

3,550

3,700

3,900

4,250

4,600

6,280

8,200

8,520

8,690

8,640

7,640

July,

35

100

180

380

360

195

165

90

56

50

32

16

12

7

Aug.

1

12

56

340

360

1,240

1,360

1,300

790

420

210

165

124

106

1,090

1,360

820

566

490

420

130

172

340

Sept

565

615

565

540

465

490

2,800

2,760

3,140

1,510

465

NOTE. Stage-discharge relation affected by backwater from Mississippi River Mar. 25 to July 17, Aug. 

21-28, Sept. 7-10, and 16-30; discharge not determined. Bridge closed for repairs Aug. 24-28: gaga not read. 

Oage not read Sept. 28-30. Discharge interpolated Sept. 13, on account of missing gage height.
MISCELLANEOUS DISCHARGE MEASUREMENTS. 187

Monthly discharge of Big Muddy River at Murphy sboro, III., for the year ending

Sept. 80, 1921.

[Drainage area, 2,170 square miles.]

Month.

March 12-24 __ _.-.--.---._---_-- _ _ __ ..

July 18-31.... _.--..-. _.-_ -

Discharge in second-feet.

Maximum.

180 

124 

1,330 

1,970 

3,450 

8,690 

380 

1,360

Minimum.

4 

20 

15 

112 

300 

130 

7 

1

Mean.

62.6 

67.5 

273 

770 

1,110 

3,390 

120 

561

Per 

square 

niile.

0.029 

.031 

.126 

.355 

.512 

1.56 

.055 

.258

Run-off 

in inches.

0.03 

.03 

.14 

.41 

.53 

1.39 

.03 

.19

MISCELLANEOUS DISCHARGE MEASUREMENTS.

Miscellaneous discharge measurements in upper Mississippi River drainage basin 

during the year ending Sept. 30, 1921.

Date.

Sept. 26.

Stream.

Pine Creek.... __ .. __ ..

Tributary to Locality. Discharge.

See.-ft. 

2,890

6.7

81182 24f WSP 525 13
INDEX.

A.

Accuracy of data and results, degrees of___ 4-5- 

Acre-foot, definition of___. ___. ____ 2 

Afton, Wis., Rock River at.. . . 107-108 

Algonquin, 111., Fox River at________ 162-163 

Ames, Iowa, Skunk River near__.-._.. 126-127 

Squaw Creek at .----.- ... .... 132-133 

Apple River near Somerset, Wis______ 54-65 

Appropriations, record of.__. __ ___ _ 1 

Augusta, Wis., Eau Claire River near___ 70-71 

Augusta, Iowa, Skunk River at...__''... 130-131

B.

Babb, Mont., St. Mary canal at intake, near. 15-16

St. Mary canal at St. Mary crossing, near. 16-18

St. Mary River near..._____.____ 10-12

Baraboo River near Baraboo, Wis____. 100-101

Beardstown, 111., Illinois River at..___ 154-155

Big Eau Pleine River near Stratford, Wis 98-99

Big Muddy River at Murphysboro, III__ 185-187

at Plumfield, HI....................... 183-185

Bigwood, B. L., work of __....___ 10

Black River at Neillsville, Wis ...........' 77-78

Bois des Sioux River near Tenney, Minn_. 28-29 

Boone, Iowa, Des Moines River near__ 135-136 

Bradley, Wis., Tomahawk River near....... 92-93

Brodhead, Wis., Sugar River near_____ 113-114 

Browning, Mont., St. Mary canal near____ 18-19

Bruce, Wis., Chippewa River near...._... 60-61

Burchard, E. D., and assistants, work of.-.. 10 

Butternut, Wis., Flambeau River near___ 64-65

Canyon Creek near Many Glacier, Mont_. 23-24 

Caribou, Minn., Roseau River at______ 38-40 

Cedar Falls, Wis., Red Cedar River at 74 

Cedar River at Cedar Rapids, Iowa___ 122-123 

at Janesville, Iowa__.___.__.... 120-121

\ Central Illinois Public Service Co., cooperation by_-.----.__.__.__ 9

Chippewa Falls, Wis., Chippewa River at.. 62-33 

Chippewa River at Bishop's Bridge, near

Winter, Wis..................... 58-59

at Chippewa Falls, Wis. . 62-33

near Bruce, Wis.______.___._ 60-61 

Clarksville, Iowa, Shellrock River near_. 124-125 

Colfax, Wis., Red Cedar River near_____ 72-73 

C omputations, results of, accuracy of... _.. 4-5 

Control, definition of___-------__.... 2

Cooperation, record of..___......_-_ 9

Coppock, Iowa, Skunk River at...____ 128-129 

Crooked Creek at Ripley, HI.............. 177-178

Crookston, Minn., Red Lake River at _ 33-34 

Current meters, Price, plate showing........ 2

Custer Park, 111., Kankakee River at .. 157-158

D. 

Data, accuracy of.__............._....... 4-5

explanation of._...............__.. 3-4

Page.

Decorah, Iowa, Upper Iowa River near 81-82

Department of Interior, Canada, cooperation

by 9

Des Moines River at Kalo, Iowa.-.. 133-135 

at Keosauqua, Iowa 142-149 

at Oltumwa, Iowa 138-142

near Boone, Iowa___.. 135-136 

near Tracy, Iowa____________. 137-138

Des Plaines River at Joliet, 111 160-162 

at Lemont, HI... ... 159-160

E.

Eau Claire River at Kelly, Wis.. i 96-97

near Augusta, Wis_ 70-71

Eldora, Iowa, Pine Creek at_______ 187

Elk River, Minn., Mississippi River at_ 42-43

F.

Fargo, N. Dak., Red River at--__----- 24-25 

Flambeau River near Butternut, Wis-... 64-65

near Ladysmith, Wis. ..._.. __. 66-W 

Flood Control Commission of North Dakota,

cooperation by. 9 

Fox River at Algonquin, 111-- - 162-163

at Wedron, 111. - -- 163-165 

Freeport, 111., Pecatonica River at.... 141-112 

Friez water-stage recorder, plate showing. 2

G.

Gaging station, typical, pla^e showing. 2 

Garber, Iowa, Turkey River at_ ... 103-104 

Gay Mills, Wis., Kickapoo River at . 101-103 

Grand Forks, N. Dak., Red River at 26-27 

Green Valley, 111., Mackinaw River near.. 166-168 

Grosbach, H. E., and assistant, work of.. 10 

Gurley printing water-stage recorder, plate

showing..-----.___ 3

I.

Illinois River at Beardstown, 111.. 154-155 

at Morris, 111. 151-152

at Peoria, HI....-- 152-153

Illinois, cooperation by 9

Interstate Power Co., of Chicago, cooperation by - ----- 8

Iowa River at Iowa City, Iowa - ..... 117-118 

at Marshalltown, Iowa. 115-116 

at Wapello, Iowa 118-120

Iowa, cooperation by . - 9

J.

Janesville, Iowa, Cedar River at..-- 120-121 

Joliet, 111., Des Plaines River at.. 160-162 

Jump River at Sheldon, Wis..-___ 68-69

K.

Kalo, Iowa, Des Moines River at... 133-135 

Kane, 111., Macoupin Creek near 178-180

189
190 INDEX.

Page. 

Kankakee River at Custer Park, 111. ___ 157-158

at Momence, HI_____________ 155-157 

Kaskaskia River at New Athens, HI....... 182-183

at Vandalia, ni........................ 180-181

Kelly, Wis., Eau Claire River at .. ._ 96-97 

Keosauqua, Iowa, Des Moines River at... 142-149 

Kickapoo River at Gays Mills, Wis..- __ 101-103 

Kimball, Alberta, St. Mary River near-.... 12-15

Kinnikinnic River near River Falls, Wis.... 56-57

Knowlton, Wis., Wisconsin River at.-___ 87-88

L.

La Crosse River near West Salem, Wis___ 79-80 

Ladysmith, Wis., Flambeau River near __ 66-67 

Lamb, W. A., and assistants, work of- - __ 9 

Lemont, 111., Des Plaines River at____ 159-160 

Lyndon, 111., Rock River at-...-...----.. 109-110

M.

Mackinaw River near Green Valley, 111--. 166-168 

Macoupin Creek near Kane, HI..-____ 178-180 

Mankato, Minn., Minnesota River near._. 47-48 

Many Glacier, Mont., Canyon Creek near. - 23-24

Swiftcurrent Creek at -_________ 19-21 

Maquoketa River below North Fork of Maquoketa River, near Maquoketa, 

Iowa---------.--...-----. 105-106

Marshalltown, Iowa, Iowa River at - 115-116 

Menomonie, Wis., Red Cedar River at .... 75-76

Merrill, Wis., Prairie River near.._____ 94-95

Wisconsin River at..__.________ 85-86 

Minnesota, cooperation by.-._- ___ 9 

Minnesota River near Mankato, Minn .. 47-48

near Montevideo, Minn...____.._ 45-47 

Minot, N. Dak., Mouse River at______ 40-41 

Mississippi River at Elk River, Minn..__ 42-43

at St. Paul, Minn..._................. 44-45

Mississippi River Power Co., cooperation by 9 

Momence, HI., Kankakee River at.- 155-157 

Montevideo, Minn., Minnesota River near.- 45-47 

Monticello, 111., Sangamon River at.___ 169-172 

Morris, HI., Illinois River at-.---__ - 151-152 

Mouse River at Minot, N. Dak _____ 40-41 

Murphysboro, 111., Big Muddy River at.. 185-187 

Muscoda, Wis., Wisconsin River at.-- ._ 90-91 

Mustinka River above Wheaton, Minn----- 30-31

N.

Namakagon River at Trego, Wis ----- 52-53

Neche, N. Dak., Pembina River at_____ 37-38 

Neillsville, Wis., Black River at-.-------- 77-78

Nekoosa, Wis., Wisconsin River near..--_ 88-90 

New Athens, HI., Kaskaskia River at---- 182-183

North Dakota, cooperation by._.__.-.-.____ 9

O.

Oakford, 111., Sangamon River near.--_. 174-175 

Ottumwa, Iowa, Des Moines River at_ 138-142

P.

Pecatonica River at Freeport, HI -___ 111-112 

Pembina River at Neche, N. Dak_____-. 37-38 

Peoria, 111., Illinois RiVer at.... ...... 152-153

Pine Creek at Eldbra, Iowa..___-____ 187 

Plumfield, HI., Big Muddy River at.-- - 183-185 

Prairie River near Merrill, Wis._______ 94-95 

Price current meters, plate showing._-. _ 2

Page.

Publications, obtaining or consulting of._ 6 

on stream flow, list of__--------_.... 7,8

information concerning. .-_....-_.. 5-8

Q.

Quasqueton, Iowa, Wapsipinicon River at. _ 187 

R.

Raccoon River at Van Meter, Iowa.--_. 149-151 

Red Cedar River at Cedar Falls, Wis - - - 74

at Menomonie, Wis _ _ ___ . 75-76

near Colfax, Wis........................ 72-73

Red Lake River at Crookston, Minn____ 33-34

at Thief River Falls, Minn.............. 31-33

Red River at Fargo, N. Dak..._.____ 24-26 

, at Grand Forks, N. Dak-.---..-..-... 26-27 

Rhinelander, Wis., Wisconsin River at

Whirlpool Rapids, near.. ____ 83-84 

Ripley, HI., Crooked Creek at............ 177-178

River Falls, Wis., Kinnikinnic River near_ 58-57 

Riverton, HI., Sangamon River at ... 172-173 

Rock River at Afton, Wis....... ....... 107-108

at Lyndon, 111 ..................... 109-110

Roseau River at Caribou, Minn-_____ _ 38-40 

Run-off in inches, definition of _____... 2

S. 

St. Croix River at Swiss, Wis............, 49-50

near St. Croix Falls, Wis.. .........'..' 51-52

St. Mary River near Babb, Mont-_____ 10-12 

near Kimball, Alberta.________. _ 12-15 

St. Mary canal at Hudson Bay divide, near

Browning, Mont.________ 18-19

at St. Mary crossing, near Babb, Mont.. 16-18

at intake, near Babb, Mont.._____.. 15-16

St. Paul, Minn., Mississippi River at..__ 44-45

Sangamon River at Monticello, HI___.. 169-172

at Riverton, HI........................ 172-173

near Oakford, HI...................... 174-175

South Fork of, at power plant, near Taylorville, HI-- ... - 175-177 

Second-foot, definition of..___.._____ 2 

per square mile, definition of_-_____ 2 

Seville, 111., Spoon River at................ 168-169,

Sheldon, Wis., Jump River at_.______ 68-6fr

Shellrock Riyer near Clarksville, Iowa__ 124-125

Sherburne, Mont., Swiftcurrent Creek at__ 21-22

Skunk River at Augusta, Iowa. _.___ 130^131

at Coppock, Iowa..._______^__ 128-129

near Ames, Iowa..___________ 126-127

Somerset, Wis., Apple River near..._._. 54-55

Soule1 , S. B., and assistants, work of. ....'.... 10

Spoon River at Seville, 111..- ........... 168-169

Squaw Creek at Ames, Iowa.____.__ 132-133 

Stage-discharge relation, definition of____ 2 

Stevens continuous water-stage recorder,

plate showing-_ _________ a 

Stratford, Wis., Big Eau Pleine River near.. 98-99 

Streator, HI., Vermilion River near____ 165-166 

Sugar River near Brodhead, Wis._____ 113-114 

Swiftcurrent Creek at Many Glacier, Mont. 19-21 

at Sherburne, Mont ____________ 21-22 

Swiss, Wis., St. Croix River at---------_. 49-5&

T. 

Taylorville, HI., South Fork of Sangamon

River near_____.- _____ 175-177 

Tenney, Minn., Bois des Sioux River near... 2S-29»
INDEX. 191

T. Page.

Terms, definition of.__________ 2-3 

Thief Eiver Falls, Minn., Bed Lake River at. 31-33 

ThiefRiver near Thief River Falls, Minn. _ 35-36 

Tomahawk River near Bradley, Wis. _._ 92-93 

Tracy, Iowa, Des Moines River near 137-138 

Trego, Wis., Namakagon River at 52-53 

Turkey River at Garber, Iowa.- .- 1(8-104

U.

United States Department of Agriculture,

cooperation by..._. __ . 9

United States Engineer Corps, cooperation

by............................... 9

United States Public Health Service, cooperation by__________. 9

United States Reclamation Service, cooperation by__.__.__._._.. 9

United States Weather Bureau, cooperation

by...................... . .. 9

Upper Iowa River near Decorah, Iowa 81-82

V.

Vandalia, EL, KaskasMa River at- . 180-181 

Van Meter, Iowa, Raccoon River at.___ 149-151 

Vermilion River near Streator, 111 .. 165-166

W' Page.

Wapello, Iowa, Iowa River at ___.__ 118-120 

Wapsipinicon River at Quasaueton, Iowa 18? 

Water-stage recorders, plate showing 3 

Wedron, El., Fox River at. __.. __ 163-165 

West Salem, Wis., La Crosse River near.- 79-80 

Wheaton, Minn., Mustinka River above. 30-31 

Winter, Wis., Chippewa River at Bishop's

Bridge, near.__________. 58-59 

Wisconsin, cooperation by 9 

Wisconsin-Minnesota Light & Power Co.,

cooperation by.... 9

Wisconsin River at Knowlton, Wis. __.. 87-88

at Merrill, Wis... . 85-86

at Museoda, Wis 90-91

at Whirlpool Rapids, near Rhinelander,

Wis... __ 83-84

near Nekoosa, Wis 88-SO

Work, authorization of 1

division of-____._-____ ___ 9-10

scope of 1-2

Z.

Zero flow, point of, definition of.. ... 3

o