UNITED STATES DEPARTMENT OF THE INTERIOR

RAY LYMAN WILBUR, Secretary

GEOLOGICAL SURVEY 

GEORGE OTIS SMITH, Director

Water-Supply Paper 628

SURFACE WATER SUPPLY 

of the UNITED STATES

1926

PART VIII 

WESTERN GULF OF MEXICO BASINS

.NATHAN C. GROVER, Chief Hydraulic Engineer

C. E. ELLSWORTH and ROBERT FOLLANSBEE 

District Engineers

Prepared in cooperation with the States of 

TEXAS and COLORADO

UNITED STATES

'GOYERNMENT PRINTING OFFICE 

WASHINGTON: 1930

.For sale by the Superintendent <®f Documents, Washington, D. C. - - - Price 35 cents

CONTENTS

Authorization and scope of work________________ ________________ 1

Definition of terms__________ _________ ____________ 2

Explanation of data_ __________ _____ __ 2

Accuracy of field data and computed results_________ _______________ 4

Publications...--.-_______________________________________________ 5

Cooperation... ____________ ___ ___ ________________ 10

Division of work_____________________________________________ _ 10

Gaging-station records.___________________---___-_ _______________ 10

Sabine River Basin__ _ ________________________________ __ -10

Sabine River near Golden, Tex____ ____ __ 10

Sabine River near Longview, Tex________________ __ 11

^Sabine River at Logansport, La-____--___-_----_____._- ___ 13

Sabine River near Bon Wier, Tex____________ _____ _ 14

Sabine River near Ruliff, Tex__________ _______ ___ 15

Lake Fork of Sabine River near Quitman, Tex______________ 16

Neches River Basin__________________ ____________________ .. 18

Neches River near Reese, Tex___ _______ 18

Neches River near Rockland, Tex___________________________ 19

Neches River at Evadale, Tex_________________ _______ 20

Mud Creek at Ponta, Tex_________ _ _________ 22

Angelina River near Lufkin, Tex_ _ 23

Village Creek near Kountze, Tex_________________________ 24

Trinity River Basin___________________________________________ 25

West Fork of Trinity River at Bridgeport, Tex_. __ 25 

West Fork of Trinity River at Lake Worth Dam, above Fort

Worth, Tex_________________ _ ____ 27

West Fork of Trinity River at Fort Worth, Tex__________ 28

West Fork of Trinity River at Grand Prairie, Tex________ 29

Trinity River at Dallas, Tex____________________ 31

Trinity River near Oakwood, Tex____...___________________._ 33

Trinity River at Riverside, Tex_____________________________ 35

Trinity River at Romayor, Tex___________________________ 36

Clear Fork of Trinity River at Fort Worth, Tex__________ 37

Village Creek near Handley, Tex__________________ 38

Mountain Creek near Grand Prairie, Tex____________________ 40

Elm Fork of Trinity River near Denton, Tex____________ 42

Elm Fork of Trinity River near Carrollton, Tex______________ 44

Elm Fork of Trinity River near Dallas, Tex________________ 45

Denton Creek near Roanoke, Tex___________________________ 47

East Fork of Trinity River near Rockwall, Tex __ _______ 49

San Jacinto River Basin___________________________________ 51

.San Jacinto River near Conroe, Tex______________________ 51

Brazos River Basin____________________________________ 52

Double Mountain Fork of Brazos River near Aspermont, Tex__ 52

Brazos River at Seymour, Tex______________________________ 54

Brazos River near Mineral Wells, Tex_________________ 55

in
IV CONTENTS

Gaging-station records Continued.

Brazos River Basin Continued. page

Brazos River near Glen Rose, Tex____________________... 57

Brazos River at Waco, Tex____________ ____________ 58

Brazos River near Bryan, Tex______________________________ 60

Brazos River at Rosenberg, Tex_____________________ 61

Clear Fork of Brazos River at Nugent, Tex__________ ___ 63

Clear Fork of Brazos River at Fort Griffin, Tex_________ 64

Clear Fork of Brazos River at Crystal Falls, Tex_________ 66

North Bosque River near Clifton, Tex________________ 68

South Bosque River near Speegleville, Tex _______________ _ 70

Leon River near Hamilton, Tex________________ ______ 72

Leon River near Belton, Tex__________________ ________ 73

Little River near Little River, Tex____________________ 75

Little River at Cameron, Tex__________________ _______ 77

Lampasas River at Youngsport, Tex_____________ ________ 78

San Gabriel River at Circleville, Tex________________________ 80

Brushy Creek at Coupland, Tex____-_------_-_--__-_-__ 81

Yegua Creek near Somerville, Tex_____________ ______ 83

Navasota River near Easterly, Tex____________ ________ 84

Colorado River Basin___________________________________ 86

Colorado River near Robert Lee, Tex____________ 86

Colorado River at Ballinger, Tex_ ________________________ 88

Colorado River near Milburn, Tex_____--__---____--_-__-_-_ 89

Colorado River near Tow, Tex_____ __ 91

Colorado River at Marble Falls, Tex__ __ __ 93

Colorado River at Austin, Tex______ ___________ _______ 94

Evaporation near Austin, Tex_________________ ___________ 96

Colorado River at Columbus, Tex____________________ 97

Concho River near San Angelo, Tex____ _ __ _________ 99

Concho River near Paint Rock, Tex_________________________ 101

North Concho River near Carlsbad, Tex______ _____________ 102

North Concho River at San Angelo, Tex_____________________ 104

Pecan Bayou at Brownwood, Tex__________ ____ ___ 106

San Saba River at Menard, Tex_______________________ ___ 107

San Saba River near San Saba, Tex___ '____ 109

Noyes Canal at Menard, Tex___________ ______ 111

North Llano River near Junction, Tex_____________________ 112

Llano River near Junction, Tex _________ ___ __ 114

Llano River near Castell, Tex_______ __ __ _____ 116

Pedernales River at Stonewall, Tex _____ 117

Pedernales River near Spicewood, Tex_______________________ 119

Barton Springs at Austin, Tex_________--__--__--_ ___ 120

Little Walnut Creek near Austin, Tex________ ______ 121

Onion Creek near Del Valle, Tex____ _ _ 122

Guadalupe River Basin________-___---_----------_-_- ______ 123

Guadalupe River near Comfort, Tex___----_--___---__----_-_ 123

Guadalupe River near Spring Branch, Tex___________________ 125

Guadalupe River at New Braunfels, Tex_ _______ _____________ 127

Guadalupe River below Cuero, Tex__________ __ ______ 128

San Marcos River at Ottine, Tex________________- _______ 131

Blanco River at Wimberley, Tex____------ _______________ 132

Plum Creek near Lockhart, Tex__-_________--_---___------- 134

San Antonio River at San Antonio, Tex__________-___________ 136
CONTENTS

Gaging-station records Continued.

Guadalupe River Basin Continued.

San Antonio River near Falls City, Tex___________________ 137

San Antonio River at Goliad, Tex____________ __________ 139

San Pedro Creek at San Antonio, Tex_______________________ 141

Medina River near Pipe Creek, Tex_________________________ 143

Medina River near Riomedina, Tex______________-___-______ 144

Medina Canal near Riomedina, Tex____________-:____________ 146

Cibolo Creek at Sutherland Springs, Tex _____ __ ____________ 147

Nueces River Basm___--__------____---__-----_-___--__-__--_- 149

Nueces River at Laguna, Tex_____________________________ 149

Nueces River at Cotulla, Tex_______________________________ 151

Nueces River near Three Rivers, Tex_______.________________ 152

Nueces River at Calallen, Tex___---_-_-----___-__________ 154

Frio River at Concan, Tex_________________________________ 155

Frio River near Frio Town, Tex_________---_-_______-___-__ 157

Frio River near Derby, Tex____________________________ 158

Frio River at Calliham, Tex.----------^----.--------------- 159

Leona River near Divot, Tex_-__--__----_-__---_--_____--_- 161

Atascosa River at Whitsett, Tex____________________________ 162

Rio Grande Basm_________________________________________ 163

Rio Grande at San Marcial, N. Mex_______________________ 163

Rio Grande below Elephant Butte Dam, N. Mex_____________ 167

Rio Grande near El Paso, Tex__________________ 168

Rio Grande below Old Fort Quitman, near Finlay, Tex________ 169

Rio Grande above Presidio, Tex_____________________ __ 171

Rio Grande below Presidio, Tex___---_-___-___-________--__ 172

Rio Grande at Langtry, Tex_____________-__________________ 174

Rio Grande near Del Rio, Tex_____________ _______ 176

Rio Grande at Eagle Pass, Tex_____________________ 178

Rio Grande near Laredo, Tex.____________________________ 180

Rio Grande near Brownsville, Tex__________________________ 181

Rio Grande seepage investigation__-______________-______-__ 183

Goose Creek at Wagonwheel Gap, Colo______________________ 184

Pecos River near Angeles, Tex.__________________________-__ 186

Pecos River near Porterville, Tex_._________________________ 187

Pecos River above Barstow, Tex___________________-___-____ 189

Pecos River near Grandfalls, Tex__-__-________-_____---_-_- 191

Pecos River near Buena Vista, Tex_______________-__________ 193

Pecos River near Comstock, Tex__________________________ 194

Limpia Creek near Fort Davis, Tex_________________________ 196

Barrilla Creek near Saragosa, Tex___________________________ 197

Devils River near Juno, Tex________________________________ 198

Devils River near'Del Rio, Tex___________________ 200

Miscellaneous discharge measurements_____________________________ 202

Index...____________________________________ 205

ILLUSTKATION

Page 

FIGURE 1. Typical gaging station___________,______________________. 3

SURFACE WATEE SUPPLY OF WESTERN GULF 

OF MEXICO BASINS, 1926

AUTHORIZATION AND SCOPE OF WORK

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

measurements of streams in the United States during the year ending 

September 30, 1926.

The data presented in these reports were collected by the United 

States Geological Survey under the following authority contained in 

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

Provided, That this officer [the Director] shall have the direction of the Geological Survey and the classification of public lands and examination of the 

geological structure, mineral resources, and products of the national domain.

The work was begun in 1888 in connection with special studies 

relating to irrigation. Since the fiscal year ending June 30, 1895, 

successive appropriation bills passed by Congress have carried the 

following items:

For gaging the streams and determining the water supply of the United States, 

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

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

Annual appropriations for the fiscal years ending June 80, 1895 1927

1895_____________ $12, 500. 00 

1896_____________ 24, 500. 00 

1897-1899__________ 50, 000. 00 

1900_.___.._._.._______ 70, 000. 00

1901-1902_______.__ 100, 000. 00 

1903-1906_______.__ 200, 000. 00 

1907_____ . __ .. ___ 150, 000. 00 

1908-1910__________ 100, 000. 00

1911-1917. ________ $150, 000. 00

1918_..______-.___.._. 175, 000. 00

1919_____.______ 148,244. 10

1920_____ . ______ 175, 000. 00

1921-1923_______.._ 180, 000. 00

1924-25__________ 170,000.00

1926__._______________ 165, 000. 00

1927.___________.__... 151, 000. 00

In this work many private and State organizations have cooperated, either by furnishing records or by assisting in their collection. 

Acknowledgments for cooperation of the first kind are made in connection with the description of each station affected; cooperation of 

the second kind is acknowledged on page 10.

Measurements of stream flow have been made at about 5,250 

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

the Hawaiian Islands. In July, 1926, 1,730 gaging stations were 

being maintained by the Geological Survey and the cooperating 

organizations. Many miscellaneous discharge measurements were

1
2 StTEFACE WATEE SUPPLY, 1926; PART VIII

made at other points. In connection with this work data were also 

collected in regard to precipitation, evaporation, storage reservoirs, 

river profiles, and water power in many sections of the country and 

will be made available in water-supply papers from time to time.

DEFINITION OF TERMS

The volume of water flowing in a stream the "run-off" or "discharge" is expressed in various terms, each of which has becomeassociated with work of a certain class. These terms may be divided 

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

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

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

principal terms used in this series of reports are second-feet, secondfeet per square mile, run-off in inches, and acre-feet. They may bedefined as follows:

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

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

of rectangular cross section 1 foot wide and 1 foot deep at an averagevelocity of 1 foot per second. It is generally used as a fundamental 

unit from which others are computed.

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

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

the assumption that the run-off is distributed uniformly both a& 

regards time and area.

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

if all the water flowing from it in a given period were uniformly distributed on the surface. It is used for comparing run-off with rainfall,, 

which is usually expressed in depth in inches.

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

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

The following terms not in common use are here defined:

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

of gage height to discharge."

"Control," a term used to designate the section or sections of the 

stream below the gage which determine the stage-discharge relation 

at the gage. It should be noted that the control may not be the samesection or sections at all stages.

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

on the gage the gage height at which water ceases to flow over thecon trol.

EXPLANATION OF DATA

The data presented in this report cover the year ending September 

30, 1926. At the beginning of January in most parts of the United
EXPLANATION OF DATA 6

States much of the precipitation in the preceding three months is 

stored in the form of snow or ice, in ponds, lakes, and swamps, or 

as ground water, and this stored water passes off in the streams 

during the spring break-up. At the end of September, on the other 

hand, the only stored water available for run-off is possibly a small 

quantity in the ground; therefore, the run-off for the year beginning October 1 is practically all derived from precipitation within 

that year. #

The base data collected at gaging stations consist of records of 

stage, measurements of discharge, and general information used to 

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

FIGUEE 1. Typical gaging station

 direct reading on a staff gage or from a water-stage recorder that 

gives a continuous record of the fluctuations. Measurements of

-discharge are made with a current meter by the general methods 

outlined in standard textbooks on the measurement of river discharge. A typical gaging station, equipped with water-stage recorder 

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

From the discharge measurements rating tables are prepared that 

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

heights to these rating tables gives the daily discharge from which 

the monthly and yearly mean discharge are computed.

The data presented for each gaging station in the area covered 

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

results of discharge measurements, a table showing the daily discharge, and a table of monthly and yearly discharge and run-off.
4 SURFACE WATER SUPPLY, 1926, PART VIII

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

tables giving daily gage heights and results of discharge measure* 

ments are published.

The description of the station gives, in addition to statements 

regarding location and equipment, information in regard to any 

condition that may affect the permanence of the stage-discharge 

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

the stream for log driving, shifting of channel, and the cause and 

effect of backwater. It gives also information as to diversions that 

decrease the flow at the gage, artificial regulation, maximum and 

minimum recorded stages, and the accuracy of the records.

The table of daily discharge gives the discharge in second-feet 

corresponding to the mean of the gage heights read each day. At 

stations on streams subject to sudden or rapid diurnal fluctuation 

the discharge obtained from the rating table and the mean daily 

gage heights 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 for parts of 

the day or by use of the discharge integrator, an instrument operating 

on the principle of the planimeter and containing as an essential 

element the rating curve of the station.

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

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

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

indicate correctly the stage when the water surface was at crest 

height, and the corresponding discharge was consequently larger 

than that given in the 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'* 

gives the average flow in cubic feet for each 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 observations 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 gage readings, and (5) methods 

of applying daily gage heights to the rating table to obtain the dailydischarge.
PUBLICATIONS 5

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

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

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

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

measurements with reference to the mean rating curve.

The monthly means for any station may represent with high 

accuracy the quantity of water flowing past the gage, but the figures 

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

subject to gross errors, caused by including large noncontributing 

districts in the measured drainage area, by lack of information concerning water diverted for irrigation or other use, or by inability to 

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

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

inches" are therefore not computed if such errors appear probable, 

and 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 Geological Survey should be used with caution 

because of possible unknown but inherent 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. The figures given can not be considered exact, 

but represent the best information available.

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

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

estimates. The tables of daily discharge allow more detailed studies 

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

the observations in each succeeding year may be expected to throw 

new light on records previously published.

PUBLICATIONS

Investigation of water resources by the United States Geological 

Survey has consisted in large part of measurements of the volume of 

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

it has comprised also investigation of such closely allied subjects as 

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

quality of waters. Most of the results of these investigations have 

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

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

monographs.
6 SURFACE WATER SUPPLY, 1926, PART VIII

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: 

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

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

to the Mississippi).

III. Ohio River Basin.

IV. St. Lawrence River Basin.

V. Upper Mississippi River and Hudson Bay Basins.

VI. Missouri River Basin. 

VII. Lower Mississippi River Basin. 

VIII. Western Gulf of Mexico basins.

IX. Colorado River Basin.

X. Great Basin.

XI. Pacific slope basins in California. 

XII. North Pacific slope basins, in three volumes:

A, Pacific slope basins in Washington and upper Columbia River

Basin.

B, Snake River Basin.

C, Lower Columbia River Basin and Pacific slope basins in 

Oregon.

Water-supply papers and other publications of the United States 

Geological Survey containing data in regard to the water resources of 

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

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

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

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

3. Sets are available for consultation in the local offices of the 

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

Augusta, Me., State House.

Boston, Mass., 2500 Customhouse.

Hartford, Conn., 64 State Capitol.

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

Trenton, N. J., 423 Statehouse Annex.

Charlottesville, Va., Brooks Museum, University of Virginia.

South Charleston, W. Va., Naval Ordnance Plant.

Asheville, N. C., 608 City HaU.

Chattanooga, Tenn., 630 Power Building.

Tuscaloosa, Ala., Post Office Building.

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

Chicago, 111., 1510 Consumers Building.

Madison, Wis., 337 N State Capitol.

Thief River Falls, Minn., 618 Knight Avenue north.

Topeka, Kans., 23 Federal Building.

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

Fort Smith, Ark., Post Office Building.

Austin, Tex., State Capitol.

Tucson, Ariz., 104 Agricultural Building, University of Arizona.

Denver, Colo., 403 Post Office Building.

Salt Lake City, Utah, 313 Federal Building.
PUBLICATIONS

Idaho Fallss, Idaho, 228 Federal Building. 

Boise, Idaho, Federal Building. 

Helena, Mont., 45-46 Federal Building. 

Tacoma, Wash., 406 Federal Building. 

Portland, Oreg., 606 Post Office Building. 

San Francisco, Calif., 303 Customhouse. 

Los Angeles, Calif., 600 Federal Building. 

Honolulu, Hawaii, Territorial Office Building.

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

applying to the Director of the United States Geological Survey, 

Washington, D. C.

Stream-flow records have been obtained at about 5,250 points in 

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

reports tabulated below:

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

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

Report Character of data Year

10th A, pt. 2___ Descriptive information only__________ ..

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

12th A, pt. 2___ __.do.__.__-___.__._______._________ 1884 to June 30,1891.

13th A, pt. 3___ Mean discharge in second-feet___________ - 1884 to Dec. 3V1892.

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

B 131 ______ Descriptions, measurements, gage heights, and ratings. 1893 and 1894.

16th A, pt. 2. __ Descriptive information only_________,__ 

B 140 ______ Descriptions, measurements, gage heights, ratings, and month- 1895.

ly discharge (also many data covering earlier years).

W 11 ____... Gage heights (also gage heights for earlier years).. 1896. 

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

(also similar data for some earlier years). 

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

States, eastern Mississippi River, and Missouri River above

junction with Kansas. 

W 16..._____ Descriptions, measurements, and gage heights, western Mis- 1897.

sissippi River below junction of Missouri and Platte, and

western United States. 

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

(also some long-time records). 

W 27..._____ Measurements, ratings, and gage heights, eastern United 1898.

States, eastern Mississippi River, and Missouri River. 

W 28 Measurements, ratings, and gage heights, Arkansas River and 1898.

western United States.

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

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

21st A, pt. 4_ - Monthly discharge________..________ . 1899. 

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

22dA, pt. 4____ Monthly discharge________ ________ - i900. 

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

W 75 . ... Monthly discharge 1901.

W 82 to 85____. Complete data_______________________ 1902. 

W 97 to 100.- ._.do.. . __ ... ___.____ 1903. 

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

W 165 to 178.___ __do ______.__________________________ 1905. 

W 201 to 214...__ _..do _..._.____. _____ 1906.

W 241 to 252..._. do ..__... __.__.. _ 1907-8. 

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

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

W 301 to 312.__. do.. _ ... 1911.

W 321 to 332 __.do . _ ___ ._ 1912.

W 351 to 362___. __.do____-.___._____.____________________ 1913. 

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

W 401 to 414. - do. 1915.

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

W 451 to 464.__. do..-.-.- __. 1917.

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

W 501 to 514 do.__ _ _ ........_______. 1919-20.

W 521 to 534 -. do . _ ... ________. 1921. 

W 541 to 554 __ ___do ___.____________.____._____________ 1922. 

W 561 to 574 . .do..-.__ _ ______.___- 1923. 

W 581 to 594. do - ___... ... __..__ __. 1924.

W 601 to 614.. .do._ ._______.__. 1925.

"W 621 to 634_... __.do.-... __.___._._________________ 1926.

NOTE. No data regarding stream flow are given in the Fifteenth and Seventeenth Annual Reports.
8 SURFACE WATER SUPPLY, 1926, PART VIII

The records at most of the stations discussed in these reports 

extend over a series of years, and miscellaneous measurements at 

many points other than regular gaging stations have been made each 

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

1904 has been published in Water-Supply Paper 119.

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

1926. The data for any particular station will be found in the reports 

covering the years during which the station was maintained. For 

example, data for Machias River at Whitneyville, Me., 1903 to 1921, 

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

281, 301, 321, 351, 381, 401, 431, 451, 471, 501, and 521, which contain 

records for the New England streams from 1903 to 1921. Results of 

miscellaneous measurements are published by drainage basins.
Numbers of wai'er-supply papers containing results of sir earn meas

[For basins included see p. 6]

1899 *. .... 1.-

1900 '. .........

J.901 .......

1902.... . _ -.

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

1904 .........

1905 . 

1906 ...... .

1907-8. ......

1909 

1910 .........

1911 ___ .. .....

1912 .... .....

1913 

1914... ..

1915 

1916 

1917.... .....

1918 

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

1921 .........

1922 ___ .. .....

1923............

1924. _____ ..

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

1926 

I

35

47, *48

65,75

82

97

* 124, 125,

»126

»167 

* 201, ' 202,

"203 

241

261

281

301

321

351

381

401

431

451

471

501

521

541

561

581

601

621

II

*>35,3Q

. 48

.65,75

fcfc2,83

&97,98

» 167, 168

» 203, 204

242

262

282

302

322

352

382

402

432

452

472

502

522

542

562

582

602

622

III

36

48,<49

65,75

83

98

128

169

205

243

263

283

303

353

383

403

433

453

473

503

523

543

563

583

603

623

IV

36

49

, 65,75

182,83

97

190

170

206

244

264

284

304

394.

354

404

434

454

474

504

524

544

564

584

604

624

V

36

49

* 65, 66, 75

*83,85

* 98, 99, m 100

171

207

245

265

285

305

325

355

385

405

435

455

475

505

525

545

565

585

605

625

VI

« 36, 37

49, i 50

66,75

84

99

172

208

94fi

266

286

306

326

356

386

406

436

476

506

526

546

566

586

606

626

VII

37

50

* 65, 66, 75

*83,84

* 98, 99

* 128, 131

* 169, 173

* 205, 209

247

267

287

307

0.07

387

407

437

457

477

507

527

547

567

587

607

627

VIII

37

%n

66,75

84

99

174

210

248

268

288

308

QOQ

358

388

408

438

458

478

508

528

548

568

588

608

628

J.

«i 

175, 

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

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

»James River only. 

«Oallatin River. 

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

 Mohave River only.

/ Kings and Kern Rivers and south Pacific slope basins.

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

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

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

 Wissahickon and Schuylkill Rivers to James River. 

Scioto River.

> Loup and Platte River

with Platte.

* Tributaries of Mississip

' Lake Ontario and tribu

» Hudson Bay only.

" New England rivers on

0 Hudson River to Delaw

' Susquehanna River to Y

« Platte and Kansas Rive

T Great Basin in Californ

 Below junction with Gi

«Rogue, Umpqua, and S
10 SURFACE WATER SUPPLY, 1926, PART VIII

COOPERATION

The work of measuring streams in Texas during the year ended 

September 30, 1926, was carried on in cooperation with the State 

through the board of water engineers, consisting of John A. Norria 

(chairman), C. S. Clark, and A. H. Dunlap, to whom special acknowledgments are due for the efficient and cordial manner in which they 

represented the State in the cooperative investigations.

The following have aided in the collection of records by furnishingfunds or otherwise assisting: United States Weather Bureau, American 

and Mexican sections of the International Boundary Commission, 

Texas Reclamation Department, State tubercular sanitarium, Corpus 

Christi, Dallas, Fort Worth, San Antonio, Brownwood, Longviewr 

H. J. L. Stark, Walker-Caldwell Water Co., Guadalupe Water Power 

Co., Medina Valley Irrigation Co., Planters & Merchants' Mills, 

Brady Chamber of Commerce, Mineral Wells Chamber of Commerce, 

Breckenridge Chamber of Commerce, Jefferson Chamber of Commerce 

Beaumont Electra Chamber of Commerce, Missouri-Kansas-Texas 

Railroad, Texas & Pacific Railway, Tarrant County Water Improvement District No. 1, St. Louis Southwestern Railway, Texas & 

New Orleans Railroad, International-Great Northern Railroad, 

Galveston, Harrisburg & San Antonio Railway, Gulf, Colorado & 

Santa Fe Railway, Leslie Harrison, and E. N. Cory.

Acknowledgment is made in the description of the gaging stations 

for records furnished by cooperating parties.

DIVISION OF WORK

Data for stations in Texas were collected and prepared for publication under the direction of C. E. Ellsworth, district engineer, who was 

assisted by Clarence E. McCashin, J. W. Bones, W. E. Armstrong, 

Trigg TwicheU, R. G. West, H. C. Pritchett, J. L. Saunders, S. D. 

Breeding, Tate Dalrymple, W. C. Dodd, A. C. Cook, N. C. Magnuson, 

Morris Reedy, G. D. Hunter, Kate Casparis, R. G. Fisher, E. S. 

Altgelt, and J. E. Stewart.

Data for Goose Creek near Wagon wheel Gap, Colo., were collected 

and prepared for publication under the direction of Robert Follansbee, 

district engineer, assisted by P. V. Hodges and Miss Nellie L. Esterly.

The records were reviewed and manuscript assembled by F. C. 

Christopherson and P. R. Speer.

GAGING-STATION RECORDS

SABINE RIVER BASIN

SABINE RIVER HEAR GOLDEN, TEX.

LOCATION. At highway bridge on main road between Golden and Grand Saline, 

50 feet below mouth of Blair Creek, 3 miles above mouth of Grand Saline 

Creek, and 5% miles southwest of Goldenr Wood County.
SABINE RIVER BASIN 11

DRAINAGE AREA. 1,200 square miles (measured on base map of Texas).

RECORDS AVAILABLE. June 26, 1924, to May 2, 1926, when station was discontinued.

GAGE. Vertical staff gage attached to piling on downstream side of bridge; 

read by Ernest Buyher.

DISCHABGE MEASUREMENTS. Made from upstream side of bridge or by wading.

CHANNEL AND CONTROL. Bed composed of silt and debris. One channel for low 

and medium stages and three for high stages! Banks covered with brush and 

subject to overflow. Control poorly defined; shifting.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 21.3 feet at 

10 a. m. April 24 (discharge not determined); no flow October 13.

1924-1926: Maximum stage recorded, that of April 24, 1926; no flow for 

several periods.

DIVERSIONS. None.

REGULATION. None.

ACCURACY. Stage-discharge relation not permanent. Data insufficient for

determination of discharge. Gage read to hundredths once daily.

\

The following discharge measurement was made: 

November 16, 1925: Gage height, 2.90 feet; discharge, 39.2 second-feet.

Daily gage height, in feet, of Sabine River near Golden, Tex., for the year ending

September 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 .

9/t

25

26

27 _ .

28. ______ . ___ .. _ . __ .... ...

29 __ .. _____ . _ _ ............

30 . .

31 . . 

Oct.

0.40

.38

.36

.30

.30

.28

.29

.30

.32

.32

.28

.26

.30

4ft

4.36

7.60

1ft Qft

10.85

11.10

7.10

4.10

2.60

2 1ft

o no

1 80

1.55

1 40

3 4ft

3 ift

Nov.

3.20

3.30

4.00

5.80

9 ift

11.05

12.55

14.32

15.50

16.90

17 40

17.00

15.00

10.95

6.00

2 Q4.

2.65

2.20

2.00

1 90

1.75

1.65

1.48

1 45

1.42

1 40

1.36

I DO

1 30

1 9ft

Dec.

1.26

1.26

1.26

1.26

1.26

1.28

1.28

1.28

1.24

1.24

1.24

1.26

1.26

1.28

1.34

1.30

1.40

i ff\

1.50

1 60

1.60

1.50

1.50

1.40

1.40

1 4ft

1.40

i 3ft

1.30

I

DA

1.30

Jan.

1.3

1.4

2.2

2.1

2.6

2.5

3.3

3.1

3.0

2.6

2.4

2.3

2.0

9 ft

2.0

1.7

5.7

n

o

14.8

15.7

18.35

1Q ft

18.6

18.1

18.1

17.8

16.2

13.6

7.1

6.8

3.8

Feb.

3.6

3.3

3.1

2.9

2.8

2.7

2.6

2.6

2.5

2 4

2.4

2.3

2.3

2.1

2.1

2.0

2.1

2.5

2.5

2.6

2.3

2.3

2.3

2.2

2.1

2 1

2.1

1.9

Mar.

1.8

1.8

1.8

1.8

1.8

5.4

11.3

11.5

9.0

11.6

15.2

17.0

16.3

13.6

10.2

6.3

4.2

3.6

3.5

3.2

7.2

12.5

14.4

13.8

14.8

18.1

18.0

16.4

14.4

12.8

15.9

Apr.

16.5

15.6

14.2

8.0

6.0

4.9

4.7

3.5

3.2

3.8

3.8

3.8

5.5

6.2

5.1

3.8

3.4

3.0

2.8

2.4

3.3

12.8

16.3

21.3

20.0

19.5

18.7

16.4

10.3

7.4

May

6.5

5.8

SABINE RIVER NEAR LONGVIEW, TEX.

LOCATION. At city pumping plant just below the International-Great Northern 

Railroad bridge, 1 mile above Longview-Henderson highway bridge, and 

3 miles southwest of Longview, Gregg County.

DRAINAGE AREA. 3,010 square miles (measured on base map of Texas).

96272 30 2
12 SURFACE WATER SUPPLY, 1926, PART VIII

RECORDS AVAILABLE. January 1,1904, to December 31, 1906; October 21, 1923,

to September 30, 1926. 

 GAGE. Combined inclined and vertical staff gage in three sections on left bank;

read by J. B. Parkhill. 

DISCHARGE MEASTJEEMENTS. Made from highway bridge 1 mile below gage or

by wading. 

CHANNEL AND CONTROL. Bed of stream composed of soapstone, sand, and drift;

practically permanent. Right bank high; left bank subject to overflow at

extremely high stages. Control is soapstone shallows and drift logs 200 feet

below gage; fairly permanent. 

EXTREMES OP DISCHARGE. Maximum stage recorded during year, 24.37 feet

at 6 p. m. May 4 (discharge, 8,410 second-feet); minimum stage, 1.47 feet

at 6 p. m. October 8 and 7 a. m. October 9 (discharge, 32 second-feet). 

1904-1906, 1924-1926: Maximum stage recorded, 35.05 feet May 19,

1905 (discharge, 19,500 second-feet); minimum stage, 1.10 feet August 30,

1925 (discharge, 14 second-feet). 

DIVERSIONS. None of consequence.

REGULATION. Slight effect at extremely low stages by pump just above gage. 

ACCURACY. Stage-discharge relation not permanent. Rating curve fairly well

defined for all stages. Gage read to hundredths once or twice daily. Daily

discharge determined by applying mean daily gage height to rating table,

except from August 6 to September 30, when shifting-control method was

used. Records fair.

The following discharge measurements were made:

November 17, 1925: Gage height, 15.90 feet; discharge, 3,510 second-feet.

July 23, 1926: Gage height, 19.67 feet; discharge, 5,430 second-feet.

Daily discharge, in second-feet, of Sabine River near Longview, Tex., for the year 

ending September SO, 1926

May

1 

2 ... ... 

3 

4 _____ . ___

5 . -

6 

7 . . ......

8 _ .. .

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

10- ___ - _

11 _ 

12 ___ . ___ ....

13 . .

14 ___ ... ..

15 

16 

17 .

18 _________

19 .

20 ;

21 .

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

23 - .

24 

25 _ ....

26 ___

27 .

28- _ ..........

29 

30 .

.31 

Oct.

39

39

35

35

35

34

33

33

33

33

33

33

35

41

48

95

227

442

650

850

1,010

1,080

1,190

1,190

890

650

302

227

198

198

242

Nov.

317

378

474

725

2,840

3,290

3,450

3,410

3,130

2,850

2,640

2,600

2,600

2,780

2,990

3,250

3,490

3,570

3,490

2,710

1,360

578

378

317

287

272

257

242

242

227

Dec.

227

212

227

227

227

227

227

212

212

198

198

198

378

1,010

1,100

930

710

542

410

347

317

302

272

272

272

257

242

227

Jan.

227

242

317

458

508

508

474

442

442

410

378

362

347

317

302

347

632

710

775

2,480

4,620

4,970

4,770

4,620

4,620

4,820

5,240

5,840

6,190

Feb.

6,370

6 4Qfl

6,250

5,460

3,660

1 7on

810

596

560

508

474

458

442

410

410

394

378

410

614

670

614

560

525

508

508

458

426

Mar.

378

332

332

332

560

1,310

1,640

1,720

2,260

3,290

3,930

4,100

4,150

4,240

4,380

4,620

4,870

5,080

5,080

4,920

5,460

4,870

3,920

3,330

4,020

4,240

4,280

4,330

4,770

5,790

Apr.

6,190

6,310

6,370

6,370

6,370

6,310

6,310

6,250

6,010

5,460

4,100

2,640

1,640

1,310

1,190

1,080

1,010

930

. 830

690

632

1,290

2,200

2,600

2,740

2,850

3,170

3,880

4,770

5,620

May

6,490

7,200

7,900

8,320

8,320

7,810

7,070

6,250

5,790

5,680

6,250

6,620

6,740

6,740

6,740

6,680

6,550

6,370

6,250

6,130

5,790

5,130

4,470

3,920

3,610

3,410

3,210

2,680

1,670

850

542

June

458

426

410

426

730

1,220

1,470

1,720

1,990

2,080

2,080

1,640

950

442

317

287

272

474

458

442

426

458

491

525

884

1,910

2,470

2,380

2,260

July

2,290

9 47fl

2,710

2,920

3,100

3,130

3,020

1,990

850

770

560

992

1,380

1,550

2, 140

2,410

2,640

2,920

3,250

3,700

4,150

4,720

5,350

5,840

6,190

6,490

6,620

6,620

6,370

6,010

5,620

Aug.

5,300

4,970

4,570

4,060

3,100

1,520

614

394

362

347

347

317

287

272

272

272

242

227

212

185

185

172

166

159

146

347

394

302

242

198

257

Sept.

272

242

198

185

166

146

133

133

133

140

272

508

650

670

525

332

227

172

146

126

114

95

95

84

79

74

69

69

64

64
SABINE RIVER BASIN 13

Monthly discharge of Sabine River near Longview, Tex., for the year ending 

September 80, 1926

Month

July . - 

Discharge in second-feet

Maximum

1,190 

3,570 

1,100 

6,190 

6,490 

5,790 

6,370 

8,320 

2,470 

6,620 

5,300 

670

8,320

Minimum

33

227 

198 

227 

378 

332 

632 

542 

272 

560 

146 

64

33

Mean

322 

1,840 

352 

2,010 

1,480 

3,320 

3,570 

5,520 

1,020 

3,510 

982 

206

2,020

Run-off in 

acre-feet

19,800 

109,000 

21,700 

124,000 

82,000 

204,000 

212,000 

340,000 

60,500 

216, 000 

60,400 

12,300

1, 460, 000

SABINE RIVER AT IOGANSPORT, IA.

LOCATION. At highway bridge between Logansport, De Soto Parish, La., 

and Haslam, Tex., 200 feet above Houston East & West Texas Eailway 

bridge and 3 miles above mouth of Grand Cane Bayou.

DRAINAGE AREA. 4,860 square miles (measured on base maps of Texas and 

Louisiana).

RECORDS AVAILABLE. July 1, 1903, to December 31, 1906; October 1, 1923, 

to September 30, 1926. Records of stage have been obtained by the United 

States Weather Bureau since July 1, 1903.

GAGE. United States Weather Bureau chain gage attached to upstream handrail of highway bridge.

DISCHARGE MEASUREMENTS. Made from highway bridge or by wading.

CHANNEL AND CONTROL. Bed of stream composed of sand and mud; practically 

permanent. Banks fairly clean, permanent, and not subject to overflow. 

Control is soft rock ledge 25 miles below gage; permanent.

EXTREMES OP DISCHARGE. Maximum stage recorded during year, 29.6 feet at 

7 a. m. April 25 (discharge, 23,000 second-feet, determined from extension 

of rating curve); minimum stage, 0.9 foot at 7 a. m. October 15 (discharge, 27.0 second-feet).

1903-1906, 1924-1926: Maximum stage recorded, 35.8 feet May 26, 

1905 (discharge not determined); minimum stage not determined but was 

probably less than 27 second-feet during first part of September, 1925.

ICE. None.

DIVERSIONS. None of consequence.

RE GTJL ATION. None.

ACCURACY. Stage-discharge relation permanent except when affected by 

backwater from tributaries entering below gage, or by wind. Rating curve 

fairly well denned from 45 to 16,000 second-feet and extended to cover 

range of stage for the year. Gage read to tenths once daily. Daily discharge determined by applying daily gage height to rating table, but not 

sufficiently accurate for publication. Monthly records fair.

COOPERATION. Gage-height record furnished by United States Weather Bureau.

The following discharge measurements were made:

November 18, 1925: Gage height, 17.69 feet; discharge, 4,670 second-feet.

July 27, 1926: Gage height, 14.83 feet; discharge, 4,760 second-feet.
14 SURFACE WATER SUPPLY, 1926, PART VIII

Monthly discharge of Sdbine River at Logansport, La., for the year ending 

September 80, 1926

Month

December __ .... _ ... __ ________________

March.. __ ... .... ____ ... ......................

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

May _____________________________

June _ ___ ... ____ . .......................

July

September ...... _____________

The year _______________________

Discharge in second-feet

Maximum

1,090 

12,800 

1,410 

7,400 

5,420 

20,200 

23,000 

10,700 

2,920 

4,800 

4,800 

290

23,000

Minimum

33

636 

488 

488 

743 

721 

3,280 

3,020 

540 

1,970 

303 

87

33

Mean

386 

5,180 

734 

3,190 

2,170 

7,360 

10,500 

7,540 

1,680 

2,930 

1,630 

174

3,630

Run-off in 

acre-feet

23,700 

308,000* 45,100

196, aCOrn, 000- 

453,000- 

627,000" 

464,000- 

100,000' 

180,000 

100,000' 

10,400

2,630,000

SABINE RIVER NEAR BON WIER, TEX.

LOCATION. At Gulf, Colorado & Santa Fe Railway bridge 1,000 feet below 

ferry crossing on highway between Newton, Tex., and Merryville, La., a 

quarter of a mile below Quicksand Creek, and 1}4 miles east of Bon Wier,. 

Newton County.

DRAINAGE AREA. 8,390 square miles (measured on base map of Texas).

RECORDS AVAILABLE. October 6, 1923, to September 30, 1926. The United! 

States Weather Bureau has obtained records of stage since December 8,. 

1913.

GAGE. United States Weather Bureau chain gage, attached to upstream side 

of railroad bridge.

DISCHARGE MEASUREMENTS. Made from upstream side of railroad bridge.

CHANNEL AND CONTROL. Bed of stream composed of sand; shifts. Banksheavily wooded and subject to wide overflow. Control is sand bar 1,000* 

feet below gage; shifting.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 20.3 feet at7 a. m. November 9 (discharge, 41,400 second-feet, determined from extension of rating curve); minimum stage, 1.0 foot at 7 a. m. October 12 and IS 

(discharge, 320 second-feet).

1924-1926: Maximum stage recorded, 20.3 feet December 25 and 26,, 

1923, and November 9, 1925 (discharge, 41,400 second-feet, determined: 

from extension of rating curve); minimum stage, 0.5 foot September 11,. 

22, and 24, 1925 (discharge, 185 second-feet).

ICE. None.

DIVERSIONS. None.

REGULATION. None.

ACCURACY. Stage-discharge relation not permanent. Rating curve fairlywell defined from 250 to 28,000 second-feet and extended above. Gag& 

read to tenths once daily. Daily discharge determined by applying daily 

gage height to rating table, but not sufficiently accurate for publication.. 

Monthly records fair.

COOPERATION. Gage-height record furnished by United States Weather Bureau.

No discharge measurements made at station during year.
SABINE BIVEE BASIN 15

Monthly discharge of Sabine River near Bon Wier, Tex., for the year ending 

September SO, 1926

Month

October ___________________________

November _________________________

April _______________________ . _____

July . _. ......-_.....- -.._..-.-........-_....._____

 September ___________ ______________

Discharge in second-feet

Maximum

8,780 

41,400 

9,420 

19,400 

10,900 

20,400 

30,300 

18,900 

9,940 

4,740 

5,870 

1,320

41,400

Minimum

320 

4,310 

1,640 

1,760 

2,900 

2,260 

11,700 

7,900 

1,880 

1,640 

1,320 

530

320

Mean

2,800 

16,400 

4,020 

11,500 

6,130 

14,200 

20,200 

13,300 

3,690 

3,350 

3,220 

788

8,300

Run-off in

acre-feet

172,000 

973,000 

247,000 

710,000 

340,000 

871,000 

1,200,000 

819,000 

219,000 

206,000 

198,000 

46,900

6,000,000

SABINE EIVES NEAR HUUFF, TEX.

XOCATION. At Kansas City Southern Railway bridge 1}4 miles east of Ruliff, 

Newton County, and 5 miles below the mouth of Cypress Creek.

DBAINAGE ABEA. 9,450 square miles (measured on base map of Texas).

HECORDS AVAILABLE. October 1, 1924, to September 30, 1926. Records of 

stage have been kept by Kansas City Southern Railway since August 17, 

1907.

 GAGE. Staff gage attached to webbing and adjacent to upstream iron pier on 

left bank; read by J. M. Edwards, Lymon Doyle, and H. G. Smith.

DISCHARGE MEASUREMENTS. Made from upstream side of railroad bridge or 

from boat near gage.

OHANNEL AND CONTROL. Bed composed of sand and mud; subject to shift. 

Banks covered with trees and brush; fairly permanent; subject to overflow. 

Control for low stages formed by shifting sand bars; control for high stages 

indefinite.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 13.9 feet at 

8 a. m. November 12 (discharge, 50,000 second-feet, determined from 

extension of rating curve and may be subject to considerable error); minimum 

stage, 2.10 feet at 5 p. m. October 13 (discharge, 652 second-feet).

1925-1926: Maximum stage recorded, that of November 12, 1925; minimum stage, 1.10 feet September 11, 1925-^discharge, 372 second-feet).

DIVERSIONS. None.

HEGULATION. None.

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

below 15,000 second-feet and poorly defined between 15,000 and 39,000 

second-feet. Gage read to hundredths twice daily. Daily discharge determined by applying mean daily gage height to rating table. Records fair.

Discharge measurements of Sabine River near Ruliff, Tex., during this year ending

September SO, 1926

Date

Jan. 19... ..... _ . ____ . _

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

Gage 

height

Feet 

10.15

10.71

Discharge

Sec.-ft. 

8,850

9

QK(\

Date Gage 

height

Feet 

11.75

4.61

Discharge

Sec.-ft. 

14,000

1,580
16 SURFACE WATER SUPPLY, 1926, PART VIII

Daily discharge, in second-feet, of Sabine River near Ruliff, Tex., for the year ending

September 30, 1926

Day

1 

2.......

3

4.......

5.......

6... .

7 

8 .

9 _

10..... ..

11 

12. ...

13 

14 ..

15.. 

16 

17 

18 

19 

20 .

21.. .

22 

23 

24 ,

25 

26 

27.......

28 

29 

30 

31. _ 

Oct.

1,050

1,050

1,050

1,160

1,400

1,270

1,090

945

777

745

745

683

683

745

777

4,280

4,280

5,910

7,050

7 95fl

7,050

5,600

4,280

3,250

3,050

2,960

3,250

5,000

6,650

7,900

7 Qftfl

Nov.

7,900

7,680

8,120

7,900

7,900

11, 400

14,500

19,200

47, 700

47, 700

47,700

50,000

45,400

41, 000

36,400

34, 200

29, 700

25,200

23, 500

21,800

21,800

19,200

18, 200

17, 100

16,400

15, 700

14, 500

13,000

10,800

Dec.

8,800

7,050

5,600

4,850

4,020

3,650

3,450

3,450

3,350

3,250

3,050

2,870

2,700

2,550

4,070

7,680

9 580

11,400

11, 800

11, 100

9,850

8,800

7,680

6,460

5,760

5,300

4,280

3,900

3,550

3,250

Jan.

3,150

O QAft

6,080

8,350

11, 100

13, 000

15, 700

17, 100

17, 100

15,700

19 flfifl

12 200

14, 500

8,580

6,260

6,460

6,460

7,680

10,200

19 fiftfl

16,400

18,200

18, 200

19 200

17, 100

16 400

15, 700

14,500

13,500

12,600

Feb.

12,600

19 fiftfl

n a.nn

11 400

11,800

11,800

11,800

11 400

10, 800

9 300

9 580

9

KQf\

9

qnrt

9,050

8 580

7,680

6 460

5,000

4,700

4,700

4,700

4,280

A. i *\n

4,020

3,900

S fiEfl

Mar.

3,450

3,350

3,350

3,150

2,870

4,560

5,300

8,120

9,850

12, 600

14, 500

16,400

18,200

1Q 9flfl

19,200

18,200

19, 200

19,200

20,500

91 Sflfl

19,200

18, 200

17, 100

17, 100

17,100

17,100

17,100

18,200

19,200

Apr.

23,500

27 400

27,400

27,400

23,500

23,500

23, 500

23, 500

27,400

27,400

29,700

29,700

25,200

19, 200

23,500

20,500

17, 100

17, 100

20,500

29,700

29,700

23.500

19,200

16 400

15, 700

15,700

May

14,000

14,000

14,000

15, 700

15, 700

23,500

25,200

23,500

19, 200

15, 700

15, 700

14,000

13,500

n snn

14,000

14, 000

14,000

14,000

14,000

14,000

14, 000

14,000

14,000

13,500

13,000

12,600

12,200

11,800

11,100

10,400

June

10,200

9,580

9,580

9,300

9,050

8,120

7,250

6,080

5,450

5,150

4,560

3,650

3,450

3,150

3,050

2,960

2,870

3,050

3,250

3,250

3,250

2,960

2,870

2,700

2,480

2,320

2,960

3,050

3,150

July

3,050

2 Q7fi

2,550

2,250

2,550

3,050

3,450

4,420

4,420

4,420

4,700

4,700

4,700

4,700

4,700

4,150

3,900

2,960

2,480

2,250

2,100

2,960

3,150

3,250

3,550

4,420

4,700

4,850

4,700

4,700

4,700

Aug.

5,000

5,300

5

AKf}

5,760

5,910

6,260

6,260

6,460

6,460

6,460

6,260

6,080

5,450

5,150

4,280

3,900

3,650

2,320

2,100

1,970

1,900

1,720

1,560

1,400

1,310

1,270

1.670

1,840

2,250

2,700

2,400

Sept.

1,840

1,840

1,840

1,840

1,840

1,610

1,450

1,400

1,310

1,200

980

1,240

1,200

1,120

1,120

1,090

1,090

1,050

1,050

1,020

980

945

1,050

1,240

1,560

1,610

1,480

1,340

1,210

1,080

NOTE. Discharge interpolated Sept. 27-30.

Monthly discharge of Sabine River near Ruliff, Tex., for the year ending September

30, 1926

Month

July....-.-. ... _ . - 

September. __ ___ ... __ .. ___ ... .. 

Discharge in second-feet

Maximum

7,900 

50,000 

11,800 

19,200 

12,600 

21,800 

29, 700 

25, 200 

10, 200 

4,850 

6,460 

1,840

50,000

Minimum

683 

7,600 

2,550 

3,150 

3,650 

2,870 

15,700 

10,400 

2,320 

2,100 

1,270 

945

683

Mean

3,220 

23,600 

5,700 

32,500 

8,010 

13, 800 

24,100 

14, 900 

4,740 

3,720 

3,890 

1,320

9,940

Run-off in 

acre-feet

198, 000 

1, 410, 000 

350,000 

771,000 

445,000 

849,000 

1, 430, 000 

915, 000 

282,000 

229, 000 

239,000 

78,600

7,m,<m

LAKE FORK OF SABINE RIVER NEAR QUITMAN, TEX.

LOCATION. At bridge on highway between Mineola and Quitman, 1 mile below 

mouth of Dry Creek and 2 miles south of Quitman, Wood County.

DRAINAGE AEEA. 586 square miles (measured on base map of Texas).

RECORDS AVAILABLE. June 27, 1924, to April 30, 1926, when station was discontinued.

GAGE. Staff gage on left bank; read by Carl Clark.
SABINE KIVEK BASIN 17

DISCHABGE MEASUBEMENTS. Made from bridge or by wading.

CHANNEL AND CONTROL. Channel composed of mud and debris; fairly permanent. 

Left bank high; right bank subject to overflow for 1,200 feet from the lowwater channel at a stage of about 14 feet. Control consists of mud and sand 

bar 1,000 feet below gage; subject to shift.

EXTREMES OF DISCHARGE. Maximum stage recorded during period, 17.6 feet at 

5 p. m. April 23 (discharge not determined); no flow October 4-14.

1924-1926: Maximum stage, that of April 23, 1926; no flow for several 

periods.

DIVERSIONS. None.

REGULATION. None.

ACCURACY. Stage-discharge relation not permanent. Rating curve fairly well 

defined below 1,000 second-feet and extended to 1,820 second-feet. Gage 

read to hundredths twice daily. Daily discharge determined by applying 

mean daily gage height to rating table or, on days of considerable fluctuation 

in stage, by averaging discharge for intervals of a day, using gage-height 

graph based on daily gage readings. Records poor.

The following discharge measurement was made:

November 17, 1925: Gage height, 1,82 feet; discharge, 20.1 second-feet.

Daily discharge, in second-feet, of Lake Fork of Sabine River near Quitman, Tex.t 

for the year ending September 30, 1926

Day

1_ 

2 

3_ 

4. __ . ______ . ________ . _ . ______

5. __ 

6 

T. ....... .....................................

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

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

W. ...................................... ......

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

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

13 __ 

14 

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

u.................... .........................

17 

18 

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

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

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

W...... ............. ....... ...................

23 

^A. ............................................

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

2fi. ............................................

-n. ............................................

28 

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

30 

31 

Oct.

0.1

.1

.0

.0

.0

.0

.0

.0

.0

.0

6.6

166

270

306

353

299

125

39

11

7.3

5.4

4.3

3.4

2.8

10

38

44

Nov.

35

50

66

126

254

455

915

1,260

1,780

354

89

32

20

18

15

12

9.9

9.0

8.4

7.5

7.0

7.0

7.0

7.0

6.8

6.7

6.3

Dec.

6.0

6.0

6-0

5.7

5.7

5.7

5.7

5.4

5.3

5.1

5.0

4.4

4.9

7.5

9.4

8.6

8.1

11

19

17

17

16

13

10

9.0

7.7

7.1

6.5

6.3

6.0

5.7

Jan.

6.0

11

34

41

53

82

59

44

34

29

26

24

18

17

14

14

82

282

944

1,820

1,660

1,270

478

183

98

82

66

Feb.

59

53

50

47

41

38

36

35

32

30

29

29

26

26

24

23

24

44

47

56

70

53

41

34

30

28

24

22

Mar.

20

19

18

18

19

99

268

580

417

807

1,510

1,510

637

211

106

82

70

66

126

584

863

1,220

1,580

1,130

667

498

334

939

1,740

Apr.

1,660

663

200

122

150

130

114

106

170

175

90

102

78

66

53

50

47

40

72

728

1,510

965

400

122

62

NOTE. Discharge not determined for several days because stage was beyond limits of rating curve. 

Mean gage heights for these days are given in parentheses: Nov. 9 (15.2), Nov. 10 (15.3), Jan. 20 (14.87), 

Jan. 21 (14.41), Jan. 24 (15.58), Jan. 25 (14.6), Mar. 12 (14.64), Mar. 13 (14.92), Apr. 1 (14.7), Apr. 2 (14.95) 

Apr. 23 (16.15), Apr. 24 (16.55), and Apr. 25 (14.6).
18 SURFACE WATER SUPPLY, 1926, PART VIII

Monthly discharge of Lake Fork of Sdbine River near Quit-man, Tex., for the year

ending September SO, 1926

Month

October ________________________

December __________________________

February __________________________

Discharge in second-feet

Maximum

353 

19 

70

Minimum

0.0

4.4 

22

Mean

64.6 

8.25 

37.5

Run-off in

acre-feet

3,350 

507 

2,080

NECHES RIVER BASIN 

NECHES RIVER NEAR REESE, TEX.

LOCATION. At Texas & New Orleans Railroad bridge half a mile above Dead 

Creek, \% miles below Killough Creek, and 2 miles west of Reese, Cherokee 

County.

DRAINAGE AREA. 851 square miles (measured on base map of Texas).

RECORDS AVAILABLE. April 10, 1924, to September 30, 1926.

GAGE. Staff gage in two sections attached to downstream end of center pier of 

railroad bridge and to old piling 63 feet below center line of railroad bridge; 

read by John Bowden. The gage is inverted, so that gage heights represent 

distance from base of rail to water surface.

DISCHARGE MEASUREMENTS. Made from railroad bridge or by wading.

CHANNEL AND CONTROL. Bed of stream composed of mud; fairly permanent. 

Banks covered with trees and brush and subject to overflow at a stage of 

 10.0 feet. Control half a mile below gage; probably permanent except 

when affected by lodged drift.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 14.07 feet 

at 8.10 a. m. May 24 (discharge, 4,000 second-feet, determined from extension 

of rating curve; minimum stage, 26.40 feet October 5-10 (discharge, 5.0 

second-feet).

1924-1926: Maximum stage, -12.5 feet at 3.45 p. m. May 30, 1924 

(discharge not determined); no floyp July 25-30 and September 10-11, 1925.

DIVERSIONS. None.

REGULATION. None.

ACCURACY. Stage-discharge relation not permanent. Rating curve fairly well 

denned below 1,600 second-feet and extended above. Gage read to hundredths irregularly; mean daily gage heights determined from graph drawn 

from gage readings in conjunction with rainfall data. Daily discharge 

determined by applying mean daily gage height to rating table or by 

estimating; not sufficiently accurate for publication. Monthly records fair.

Discharge measurements of Neches River near Reese, Tex., during the year ending

September SO, 1926

Date

Jan. 16 _____

July 22.. .......

Gage 

height

Feet 

-22. 80

-22. 88

-21. 98

Discharge

Sec.-ft. 

156

141

9<U

Date

July29_. . 

Do.. ........

July 30. ... ..

Gage 

height

Feet -17. 46

-17.50 -17. 74

Discharge

Sec.-ft. 

1,500

1,450

1,360

Date

July 30.. .......

July 31.. ... .

Gage 

height

Feet -17. 98

-18.48

-20.52

Discharge

Sed-ft. 

1,320

1,230

671
NECHES RIVER BASIN 19 

Monthly discharge of Neches River near Reese, Tex., for the year ending September 80,

Month

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

Discharge in second-feet

Maximum

128 

1,560 

193 

1,710 

1,020 

3,000 

2,910 

4,000 

2,120 

1,520 

1,080

4,000

Minimum

5.0 

22 

36 

109 

272 

272 

487 

353 

118 

123

5.0

Mean

41.7 

590 

98.3 

549 

361 

1,470 

1,190 

1,980 

596 

483 

211 

13.0

635

Run-off in

acre-feet

2,560 

35,100 

6,040 

33,700 

20,000 

90,500 

70,500 

122,000 

35,500 

29,700 

13,000 

774

459,000

NOTE. Discharge estimated Aug. 17 to Sept. 30.

NECHES RIVER NEAR ROCKIAWD, TEX.

LoCATiON.^-At ferry on highway between Rockland and Zavala, half a mile 

above Texas & New Orleans Railroad bridge, 1 mile north of Rockland, 

Tyler County, and 2 miles below the mouth of Billams Creek.

DRAINAGE AREA. 3,540 square miles (measured on base map of Texas).

RECORDS AVAILABLE. October 1, 1923, to September 30, 1926. The United 

States Weather Bureau has obtained records of stage since July 1, 1903.

GAGE. United States Weather Bureau staff gage on left bank.

DISCHARGE MEASUREMENTS. Made from railroad bridge or by wading.

CHANNEL AND CONTROL. Bed of stream composed of rock; permanent. Banks 

of earth; subject to overflow at high stages. Control consists of rock shoals 

2,000 feet below gage; permanent.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 22.7 feet at 

7 a. m. April 26 and 27 (discharge, 15,100 second-feet); minimum stage, 0.1 

foot at 7 a. m. October 1 (discharge, 119 second-feet).

1924-1926: Maximum stage recorded, that of April 26 and 27, 1926; 

minimum stage, 1.2 feet August 23 and 24, 1925 (discharge, 7.0 secondfeet).

DIVERSIONS. None.

REGULATION. None.

ACCURACY. Stage-discharge relation not permanent. Rating curve fairly well 

defined. Gage read to tenths once daily. Mean daily gage height for days 

of considerable fluctuation in stage determined from graph based on once 

daily gage readings. Daily discharge ascertained by applying daily gage 

height to rating table or, on days of considerable fluctuation in stage, by 

averaging discharge for intervals of a day, except as noted in footnote to 

table of daily discharge. Records fair.

COOPERATION. Records of stage furnished by the United States Weather 

Bureau.

The following discharge measurements were made: 

January 18, 1926: Gage height, 9.14 feet; discharge, 3,900 second-feet. 

April 28, 1926: Gage height, 22.35 feet; discharge, 14,000 second feet. 

July 28, 1926: Gage height, 4.93 feet; discharge, 1,810 second-feet.
20 SURFACE WATER SUPPLY, 1926, PART VIII

Daily discharge, in second-feet, of Neches River near Rockland, Tex., for the year 

ending September 80, 1926

Day

1 

2... _.._____

3 ........

4 

5.. _ _..___

6 

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

8-.....'.....

9_.__. .__.__

10-.___._ ...

11_.___.__.._

12... ________

13.__._._____

14 .

15.. _ ......

16 .. ......

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

18-... ......

19. . ...

20. . ...

21 __

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

23-...-.-...

24.. 

25 

26 .. .

27 ......

28.. _ ......

29_..........

30 .

31 . .

Oct.

110

151

169

IfiQ

188

188

230

230

930

230

256

256

285

435

525

555

1,080

2,460

1,820

1,530

1,440

1,440

1,220

1,390

4,220

3,920

3,560

3,260

2,740

2,460

2,400

Nov.

2,020

1,580

2,430

10,100

12,300

12,500

12,300

12,100

12,000

19 30fl

12,000

19 4ftn

12,600

12,200

12,000

11,400

10,300

9,640

S KQfl

7,890

7,050

6,220

5,380

4,600

3 Q9n

3,320

3,020

9 QOfl

2,620

2,350

Dec.

9 31f»

2,080

1,980

1,920

1,920

1,820

1,530

1,350

1,100

fton

7ft *

715

680

680

820

1,260

1,530

1,480

*l,350

1,220

1 140

1,030

Qfin

960

855

715

680

680

680

680

715

Jan.

868

4 440

7,120

7,260

7,470

7 540

7,400

6,840

6,220

5,380

4,460

3,500

2,570

1,720

1 300

1,380

9 QOfl

4,160

4 400

4 34ft

4,100

3 980

MOO

3 Ann

3,620

3,380

3,200

2 7Qn

2 OKA

2,080

1,820

Feb.

1,780

1,720

1,820

1 880

1,920

1,920

1 980

2,020

2 080

2,080

2 080

2^020

2,020

1 080

1,920

1,820

1,820

1,920

1,920

1,680

1 %t\(\

i ism

one

890

QKK

Ron

785

711

Mar.

680

680

680

680

1,030

2 OKA

4,160

4,100

4 040

5,380

7 400

fiSSO 7 140

7 400

7^120

6,700

6,630

6,700

7 K>lfl

7 *i4fi

7,260

7,260

7 ion

7,050

6,700

6,700

6,700

7 400 io!soo

12,300

13,800

Apr.

13,200

19 QAA

12,500 10 nno

11 600

10, 950

10,600

10,200

9,500

9,500

9,570

9,220

8,800

o acf.

7 qqrt

6,350

S

OOfl

4,720

4,100

4,340

3 980

4 400

6,700

11,000

13,800

15,100

14,700

13,800

12,800

May

H ftAA

10,700

9,500

ft ftnn

6

AQ(\

6,020

S o/in

4,720

4

OQft

3,860

3 Ann

3,800

3,680

3,320

3

AQA

3,020

9 Qfin

2,960

3,020

3,140

1 140

3,080

3,020

3

AQA

3,200

3,320

3,560

3,680

3,620

3,620

3,500

June

S

oon

3,260

3,140

3 440

3,200

3,200

3,200

3,140

3

AQA

9 Qfin

3,200

3 080

3,020

2,680

2 460

O O/IA

2,180

2,130

9 o&n

2,080

2,130

9 940

2,460

1,920

1,820

1 OCA

2,350

2,570

2,350

1,920

July

1,820

1,720

1,620

1,620

1,530

1,720

1,820

2,080

9 OAf\

2,350

2,350

1,820

1,820

1,580

1 400

1,350

1,720

1,180

1,100

960

925

960

1,350

1,620

2,240

2,020

1,720

1,780

1,720

1,260

1,260

Aug.

1,580

1,580

1,260

1,260

1,030

960

Qfin

960

960

Ofirt

960

QQ1

1,030

1,100

1,030

645

645

555

435

375

345

345

256

256 <M>;

555

820

1,260

890

435

495

Sept.

615

555

"315 435

315

169

169

169

151

135

135

135

135

135

135

135

135

151

151

230

256

285

256

375

375

285

151

135

135

135

NOTE. Daily discharge estimated Oct. 18, 25, Nov. 4, Jan. 17, Mar. 5 and 6.

Monthly discharge of Neches River near Rockland, Tex., for the year ending

September 30, 1926

Month

November. ___________ _ _ ___ _ ...

April _ _ -__-----_. . _____ _ _ ___ ...

July_____ 

Discharge in second-feet

Maximum

4,220 

12,600 

2,350 

7,540 

2,080 

13,800 

15,100 

11,600 

3,440 

2,350 

1, 580 

615

15, 100

Minimum

119 

1,580 

680 

868 

715 

680 

3,980 

2,960 

1,260 

925 

256 

135

119

Mean

1,260 

8,000 

1,180 

4,070 

1,640 

6,070 

9,750 

4, 540 

2,610 

1,630 

8,160 

230

3, 480

Run-off in 

acre-feet

77,700 

476,000 

72,500 

250,000 

91,200 

374, 000 

580,000 

279,000 

155,000 

100,000 

50,100 

13,700

2, 520, 000

NECHES RIVER AT EVADAIE, TEX.

LOCATION. At Gulf, Colorado & Santa Fe Railway bridge 500 feet west of 

Evadale railroad station, Jasper County, and 600 feet below mouth of Mill 

Creek.

DBAINAGE ABEA. 7,910 square miles (measured on base map of Texas).

RECOBDS AVAILABLE. July 1, 1904, to December 31, 1906; October 1, 1923, to 

September 30, 1926.
NECHES EIVER BASIN 21

GAGE. Vertical staff gage on left bank above bridge; read by F. B. Kirkpatrick. 

Zero of gage is 7.2 feet above mean sea level.

DISCHARGE MEASTJREMENTS. Made from upstream side of railroad bridge, from 

a boat, or by wading.

CHANNEL AND CONTBOL. Bed of stream composed of mud and sand; shifts. 

Left bank high; right bank subject to overflow above a stage of 5 feet. 

Low-water control is a sand bar \% miles below gage; shifting.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 17.66 feet at 

6 p. m. April 10 and 7 p. m. April 11 (discharge, 30,800 second-feet); minimum stage, 0.40 foot at 7.30 a. m. October 13 (discharge, 252 second-feet). 

1904-1906, 1924-1926: Maximum stage recorded, 19.0 feet from 7 a. m. 

June 1 to 7 a. m. June 7, 1924 (discharge, 40,700 second-feet); minimum 

stage, 0.35 foot September 10, 1925 (discharge, 148 second-feet).

DIVERSIONS. None.

REGULATION. None.

ACCURACY. Stage-discharge relation not permanent. Rating curve fairly well 

defined. Gage read to hundredths twice daily. Daily discharge determined 

by applying mean daily gage height to rating table. Records fair.

The following discharge measurements were made: 

April 29, 1926: Gage height, 15.38 feet; discharge, 13,800 second-feet. 

August 21, 1926: Gage height, 4.02 feet; discharge, 1,080 second-feet. 

September 29, 1926: Gage height, 2.66 feet; discharge, 784 second-feet.

Daily discharge, in second-feet, of Neches River at Evadale, Tex., for the year ending

September SO, 1926

Day

1 ......

2 

3 

4 ..... .

5.. ....

6 

7 

8.... ..

9.. .

10.. 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 _ . .....

22 

23 

24. 

25 

26 

27 

28 

29 

30 

31 

Oct.

348

296

296

402

EflQ

485

422

348

312

296

266

266

252

296

708

3,470

4,380

5,360

5,480

4,900

4,000

3,330

3, 050

3, 120

3,330

4,680

6,580

7,740

8,380

8,060

Nov.

7,740

7,740

7,420

6,840

7,580

9,800

11,300

13,800

16,500

20,200

24,800

28,500

30,000

30,000

29,200

28,500

27,800

27,800

27,800

27,000

26,200

25,500

24,000

22,500

20,200

18,800

16,500

14, 200

12,700

11,500

Dec.

10,400

9,420

8,550

7,740

6,840

6,200

5,120

5,360

5,010

4,090

4,090

3,190

2,910

a non

5,120

6,080

6,320

6,320

5,840

5,120

4,680

4,180

3,910

3,610

3,330

S

ftKft

2,910

2,780

2,780

Jan.

2,910

3,470

5,120

7,580

9,800

12,100

13,800

15,200

16,500

17,200

17,200

14,200

12,100

10,200

8,380

7,420

7,270

8,720

10,800

12,700

13,400

13,000

19 7ftn

12,100

11,000

10,400

9,610

8,890

8,380

7,900

Feb.

7,270

6,980

6,840

6,840

6 840

6,710

c AKf\

6,320

6,320

6,320

6,320

6,320

6,320

6,320

6,080

5,720

4,790

4 680

4,790

4 680

4,480

4,180

S

oon

3,050

Mar.

2,720

2,600

2,500

2,400

9 4in

2,780

3,910

6,080

7,900

10,400

11,800

12,400

13,000

13,800

14 600

15,800

18,000

19,500

18,000

17,200

16,500

15,200

14,600

13,800

10 Af\(\

14,200

15,200

15,800

Apr.

16,500

18,000

20,200

22,500

26,200

28,500

29,200

29,200

30,000

30,000

27,800

97 flOO

24 800

23,200

21, 800

18,000

15,800

18,800

18,800

15,200

13,400

12,700

12,700

10 Aflft

14,200

15,800

May

18,800

22,500

25,500

27,000

27,800

24,000

21,800

19,500

16,500

14,200

12,400

10,800

9 Qf\f)

8,550

7,740

7,120

6,580

6,450

6,320

6,200

6,200

6,080

6,080

6,200

6,320

6,450

June

6,450

6,580

6,840

6,840

'6,580

6,320

6,080

5,840

5,480

5,360

5,240

5,120

5,120

5,120

5,010

4 680

4,380

4,090

3,830

3,610

3,400

3,260

3,260

3,610

4,280

4 580

4,790

4 790

5,240

5,600

July

5,600

5,240

4,680

4,380

4,180

4,280

4,180

4,000

3,910

3,910

4,090

4,090

4,000

3,830

3,470

3 ion

3,050

2,910

2,910

2,840

2,720

2,550

2,400

O ORft

2,350

3,830

4 380

4,090

3,830

Aug.

3,610

3,260

3,050

2,910

2,780

2,450

2,200

2,000

1,870

1,790

1..710

1,630

1,630

1,670

1,670

1,790

1,790

1,670

1,440

1,330

1,130

1,030

936

906

876

876

936

1,260

1,710

2, 050

1,960

Sept.

1,670

1,400

1,300

1,260

1,230

1,160

1,030

936

848

764

736

681

708

708

603

577

554

508

485

485

508

603

629

708

792

736

681
22 SURFACE WATER SUPPLY, 1926, PART VIII

Monthly discharge of Neches River at Evadale, Tex., for the year ending September

SO, 1926

Month

October ____ ____________________

AprU.....................................................

May

July .. __ .

August _ . _ ... _________________

Discharge in second-feet

Maximum

8,380 

30,000 

10,400 

17,200 

7,270 

19,500 

30,000 

27,800 

6,840 

5,600 

3,610 

1,670

30,000

Minimum

252 

6,840 

2,780 

2,910 

.2,910 

2,400 

12,700 

5,840 

3,260 

2,250 

876 

485

252

Mean

2,700 

19,400 

5,130 

10,800 

5,480 

11,800 

21,500 

13,200 

5,050 

3,690 

1,800 

801

8,440

Run-off in 

acre-feet

166,000- 

1, 160, 000- 

316, COO666, 000' 

304, GOO725, 000 

1,280,000 

811,000 

300,000- 

227,000 

111, OOfr47,700

6, 110, 000'

MUD CREEK AT PONTA, TEX.

LOCATION. At Texas & New Orleans Railroad bridge three-quarters of a mile 

west of Ponta, Cherokee County, and 1 mile below mouth of Sandy Creek.

DRAINAGE ABE A. 481 square miles (measured on base map of Texas).

RECORDS AVAILABLE. April 15, 1924, to September 30, 1926.

GAGE. Staff gage on downstream side of Texas & New Orleans Railroad bridge;, 

read by J. M. Langley. The gage is inverted, so that gage heights represent 

distance from base of rail to water surface.

DISCHARGE MEASUREMENTS. Made from railroad bridge or by wading.

CHANNEL AND CONTROL. Bed of stream composed of mud and sand; fairly 

permanent. One channel at all stages. Banks covered with brush and 

trees; not subject to overflow. Control poorly defined.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 14.10 feet 

at 5.15 p. m. March 22 (discharge, from extension of rating curve, 2,620 

second-feet; minimum stage, 25.0 feet October 5-9 (discharge, 0.4 secondfoot).

1924-1926: Maximum stage recorded 12.72 feet at 5.32 a. m. May 30, 

1924 (discharge, 4,000 second-feet, determined from extension of rating 

curve); no flow during several periods in 1925.

DIVERSIONS. None.

REGULATION. None.

ACCURACY. Stage-discharge relation not permanent. Rating curve fairly well 

defined below 1,800 second-feet; extended above. Gage read to hundredths 

once daily; gage readings very irregular. Mean daily gage height determined from graph drawn from gage readings. Daily discharge determined 

by applying mean daily gage height to rating table. Records poor.

The following discharge measurements were made:

January 16, 1926: Gage height, 21.61 feet; discharge, 129 second-feet. 

July 23, 1926: Gage height, 22.04 feet; discharge, 92 second-feet. 

July 29, 1926: Gage height, -22.02 feet; discharge, 90 second-feet.
NECHES RIVER BASIN 23

Daily discharge, in second-feet, of Mud Creek at Ponta, Tex., for the year ending

September SO, 1926

Day

1 _____ 

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

3 . 

4

5 __ . __ ..

6. . ..

7 ____ . .....

8... ....

9.. ........

10 

11 .

12 ____ . .....

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

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

15.. ____ . ...

16 

17 __ 

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

19. 

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

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

22 ____ .....

23 ___ ........

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

25 _ . ____ ..

26 .

27.. ___ . __ .

28. .........

29 _______ .

30 

31... ......

Oct.

 0.6

 .5

.5 «.5

.4

«.4

.4 «.4

.5

".6

".8

 1.9

3.8 014

209

272 "313

 209

"62

13 "8.0

"6.7

6.0 "9.8

 8.5

7.0

6.0

7.5

8.7

9.8

Nov.

 9.8

7.8 "40

209

515

910

1,080

1,040

1,120

1,160

"1,080

975 "740

 640

 555

515 "458

 422

"422

"390

342

 374

"342

299

 285

"259

233

 209

 173

124

Dec.

115

106

97

97

106

0124

"133

"143

143 143

133

124 "143

 163

185

 197

"197

209

209 "221

o221

233

185

163

 143

 124

"106

97

88

88

84

Jan.

"79

"84

"124

"197

246

272

285 "299

"299

"285

259

209 "173

"143

133

124 "173

94fi

285 "476

"740

1,240

1,610

2,140

1,780

1,360

1,120

1,010

910 "790

"690

Feb.

640

"555

458

406

374

313

"285

285

259

233

221 "209

197 "185

"173

"163

163

173

173 "163

"163

"163

 153

163 163

153 163

"173

Mar.

185 197

"197

"209

 209

209 »233

"299

458

820

1,080

1,320

1,120

"1,080

"1,040

 975

940 "850

740

665

 850

2,370

2,210

"1,780

1,780

"1, 410

1,160

"1,040

940

1,120

1 94rt

Apr.

1,240

"1,160

1,160

"1,080

975

"910

790 "690

555

515

"515

495

 476

476

476

495

476

"422

374

327

299

880 "940

1,080

"1,040

975

940

" 850

790 "595

May

476 "374

374

374

374

"406

"476

"555

"665

740

1,010

1,040

1,040

1,080

1 120

"1, 010

»910

820

740

" 665

"595

555 "575

"617

640

640

476

 374

"285

 233

 163

June

115

143

143

"259

390

 342

"272

233

133

79

58 50

"40

34

23

"20

"19

 20

24

"32

40

197

4ftfi

313

233

313 "259

"185

133

88

July

"70

58 "52

"49

"47

"46

46

"48

"51

"58

"66

75

88 "110

"133

124

102

 62

"24

19

"18

"31

88 143

"153

163

153

124

92 "47

24

Aug.

" 18

" 14

"12

"9.8

 8.5

8.0

6.0 5.2

4.7

4.4

"4.3

"4.4

"4.4

4.5

"4.5

 4.5

4.5

4.4

4.4

"4.1

 3.7

"3.2

"2.8

 2.5

2.3

"2.1

"2.0

1.9 "1.7

"1.7

"2.1

Sept.

4.2 4.4

"4.2

"3.8

 3.4

"3.1

2.8 "2.5

2.3 "2.3

"2.1

 2.1

"2.1

"2.1

"2.1

2.1 "2.1

2.1

"2.1

2.1

2.0

1.8

1.7

1.7

1.6

1.6

1.4

1.4 1.4

1.4

" Gage not read; discharge estimated from gage-height graph drawn through recorded gage readings.

Monthly discharge of Mud Creek at Ponta, Tex., for the year ending September

SO, 1926

Month

October ___________________________

November _________________________

February __________________________

June _____________________________

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

August.. __________________________

September- ______________________ __

The year _______________________

Discharge in second-feet

Maximum

313 

1,160 

233 

2,140 

640 

2,370 

1,240 

1,120 

406 

163 

18 

4.4

2,370

Minimum

0.4 

7.8 

84 

79 

153 

185 

299 

163 

19 

18 

1.7 

1.4

.4

Mean

38.1 

498 

146 

574 

247 

927 

733 

626 

153 

76.3 

5.18 

2.26

336

Run-ofl in 

acre-feet

2,340 

29,600 

8,970 

35,300 

13,700 

57,000 

43,600 

38,500 

9,120 

4,690 

319 

139

243,000

ANGELINA RIVER NEAR LUFKIN, TEX.

LOCATION. At Lufkin-Nacogdoches highway bridge, 1 mile above Houston 

East & West Texas Railway bridge, 1.2 miles above mouth of Lamana Bayou, 

and 8 miles north of Lufkin, Angelina County.

DRAINAGE AREA. 1,580 square miles (measured on base map of Texas).

RECORDS AVAILABLE. October 29, 1923, to September 30, 1926.
24 SUEFACE WATEE SUPPLY, 1926, PAET VIII

GAGE. Chain gage attached to upstream side of highway bridge; read by WillieLind and D. Ramos. Prior to January 17 gage was at Houston East & 

West Texas Railway bridge 1 mile downstream.

DISCHARGE MEASUREMENTS. Made by wading or from highway bridge.

CHANNEL AND CONTROL. Bed composed of sand and mud; shifts. Left bank 

high; right bank subject to overflow. Control for low stages is mud and 

gravel, 75 feet below gage; fairly permanent. Control for high stages 

poorly defined; affected by timber and drift.

EXTREMES OP DISCHARGE. Maximum stage recorded during year, 15.99 feet 

from 9 a. m. November 19 to 8.30 a. m. November 21 (discharge, 30,200 

second-feet, determined from extension of rating curve and may be subject 

to considerable error); minimum stage, 2.60 feet at 5 p. m. October 10 

(discharge, 17 second-feet).

1924-1926: Maximum stage, that of November 19-21, 1925; minimum 

discharge, 14 second-feet August 27, 28, 31, and September 1-3, 1925.

DIVERSIONS. None.

REGULATION. None.

ACCURACY. Stage-discharge relation not permanent. Rating curves fairly well 

denned below 6,000 second-feet. Gage read to hundredths twice daily. 

Daily discharge determined by applying mean daily gage height to rating; 

 table; not sufficiently accurate for publication. Monthly records fair.

The following discharge measurements were made: 

January 17, 1926: Gage height, 8.70 feet; discharge, 1,090 second-feet. 

April 27, 1926: Gage height, 12.48 feet; discharge, 6,200 second-feet. 

July 27, 1926: Gage height 7.84 feet; discharge, 455 second-feet.

Monthly discharge of Angelina River near Lufkin, Tex., for the year ending

September SO, 1926

Month

October.-.. _____________________

December __________________________

January . __ .

March... ___ .... ___ .... _____________

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

September.. __________________ _____

The year. , ____________________

Discharge in second-feet

Maximum

1,300 

30,200 

850 

3,250 

4,370 

19, 100 

13,800 

4,560 

1,160 

730 

287 

48

30,200

Minimum

17 

93 

475 

455 

540 

480 

1,210 

680 

191 

247 

37 

23

17

Mean

304 

10, 800 

621 

1,340 

1,370 

5,850 

5,210 

1,820 

451 

388 

98.8 

32.2

2,350

Run-off in 

acre-feet

18,700 

645,000 

38,200 82,500- 

75,900 

360,000 

310,000 

112,000 

26,900 

23,900 

6,070 

1.92O

1, 700, 000

TILLAGE CREEK NEAR KOUNTZE, TEX.

LOCATION. At Gulf, Colorado & Santa Fe Railway bridge 4 miles east of Kountze, 

Hardin County, and 8 miles below mouth of Beech Creek.

DRAINAGE AREA. 838 square miles (measured on base map of Texas).

RECORDS AVAILABLE. May 14, 1924, to September 30, 1926.

GAGE. Chain gage attached to upstream side of railroad bridge; read by Charles 

Barnes. The gage is inverted, so that gage heights represent distance 

from base of rail to water surface.

DISCHARGE MEASUREMENTS. Made from bridge or by wading.
TRINITY RIVER BASIN 25

CHANNEL AND CONTBOL. Bed of sand; shifts. Banks low and subject to 

overflow. Low-water control is an accumulation of trees and logs partly 

buried in the sand 200 feet below the gage; subject to shift and accumulation 

of more drift. High-stage control is bed and banks of stream.

EXTBEMES OF DISCHARGE. Maximum stage recorded during year, 12.88 feet at 

2.25 p. m. November 7 (discharge, from extension of rating curve, 12,800 

second-feet); minimum stage, 28.86 feet at 2.26 p. m. October 13 (discharge, 

62 second-feet).

1924-1926: Maximum stage, 11.19 feet June 2, 1924 (discharge not 

determined); minimum discharge, 38 second-feet August 21, 1925.

DIVERSIONS. None.

REGULATION. None.

ACCURACY. Stage-discharge relation not permanent. Rating curve fairly well 

defined below 9,000 second-feet and extended above. Gage read to hundredths once daily except Sundays. Daily discharge determined by applying daily gage height to rating table; not sufficiently accurate for publication. 

Monthly records fair.

The following discharge measurements were made: 

April 25, 1926: Gage height, 16.97 feet; discharge, 3,560 second-feet. 

August 21, 1926: Gage height, 27.89 feet; discharge, 140 second-feet. 

September 29, 1926: Gage height, 26.89 feet; discharge, 306 second-feet.

Monthly discharge of Village Creek near Kountze, Tex., for the year ending September

30, 1926

Month

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

Discharge in second-feet

Maximum

3,460 

12,800 

1,830 

11,700 

1,860 

4,010 

4,010 

2,000 

1,200 

516

12,800

Minimum

62 

496 

256' 

772 

477 

388 

2,000 

296 

210 

124

Mean

800 

3,150 

766 

3,440 

893 

1,700 

2,840 

824 

312 

265 

168 

340

1,290

Bun-off in 

acre-feet

49,200 

187,000 

47,100 

211,000 

49,600 

105,000 

169,000 

50,700 

18,600 

16,300 

10,300 

20,200

934,000

NOTE. Daily discharge was estimated, owing to missing gage heights, for Oct. 4,11,18,25, Nov. 15,22,29, 

Dec. 6-13, 24-29, Jan. 3, 10, 31, Feb. 7,14, 21, 28, Mar. 7,14, 21, 28, Apr. 11, May 9,16, 23, 30, June 6,13,19, 

20,27, July 41; 18,25. Mean monthly discharge for August and September was estimated, owing to.missing 

gage heights.

TRINITY RIVER BASIN

WEST FORK OF TRINITY RIVEE AT BRIDGEPORT, TEX.

LOCATION. At Rock Island pumping plant, a quarter of a mile below BalsoraBridgeport highway bridge, half a mile southwest of railroad station at 

Bridgeport, Wise County, and 1% miles below mouth of Gentry Creek.

DBAINAGE ABEA. 1,010 square miles (measured on topographic maps and base 

map of Texas).

RECORDS AVAILABLE. October 1, 1914, to September 30, 1926. Records of 

stage have been obtained by United States Weather Bureau since August 12, 

1908, at highway bridge a quarter of a mile upstream from present station.

GAGE. Vertical staff gage on left bank, three-eighths mile above Rock Island 

Dam; read by F. G. Howard.
26 SURFACE WATER SUPPLY, 1926, PART VIII

DISCHARGE MEASUREMENTS. Made from highway bridge or by wading.

CHANNEL AND CONTROL. Bed of clay, gravel, and sand. Banks slightly 

wooded; subject to overflow at a stage of 25 feet. Control is a 4-foot concrete dam three-eighths mile below station; permanent.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 21.57 feet 

during night of March 21-22 (discharge, 7,480 second-feet); no flow December 7 to January 16.

1908-1926: Maximum stage recorded, 28.9 feet June 8, 1915 (discharge 

not determined); no flow during several periods.

DIVERSIONS. City of Bridgeport diverts a small amount for municipal uses. 

Practically no other diversion above station.

RE GUL ATION . None.

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

defined below 1,500 second-feet, poorly defined from 1,500 to 3,500 secondfeet, well defined from 3,500 to 5,500 second-feet, and extended above. Gage 

read to hundredths twice daily and oftener during floods. Daily discharge 

determined by applying mean daily gage height-to rating table or, on days of 

considerable fluctuation in stage, by averaging discharge for intervals of a 

day, using gage-height graph based on daily gage readings. Records fair.

The following discharge measurements were made:

December 9, 1925: Gage height, 5.73 feet; discharge estimated, 0.05 secondfoot.

April 25, 1926: Gage height, 6.88 feet; discharge, 144 second-feet.

August 8, 1926: Gage height, 6.22 feet; discharge determined by float measurement, 4.2 second-feet.

Daily discharge, in second-feet, of West Fork of Trinity River at Bridgeport, T'ex., for 

the year ending September 30, 1926

Day

1 __ ..

2. __ ..

3 ... .

4 ___ .

fi ....

6 __ ..

7 

8 __ ..

9.. _ ..

10 . 

11 

12. __ ..

13, ___ .

14 ___ ,.

15 

16 _

17... _ .

18.......

19 

20. 

21 .......

22.... ...

23 

24.......

25 _ ....

26.... ...

27. _ ...

28. ......

29.......

30.......

31 

Oct.

18

10

7.1

4.8

34

16

9.7

7.1

4.5

13

10

4 >5

4.0

3.4

149

805

128

164

93

A K

32

16

8.4

7.1

4.5

3.4

2.6

2.6

1.7

1.8

1.7

Nov.

1.7

1.6

1.6

1.1

.7

.7

348

147

136

224

167

68

30

18

11

7.1

7.1

5 9

8.4

7.1

5.2

4.5

2.1

2.1

2.3

2.1 i a

1.6

1.4

1.2

Dec.

1.1

1.1

.6

.1

.1

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

Jan.

0.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

591

536

625

1,370

OfiS

98

81

Eft

9ft

go

97

45

105

77

Feb.

39

25

16

9.7

5.8

8.4

9.7

9.7

7 a

7.1

5.8

4.5

4.0

3.2

2.9

2.9

2.3

1.8

1.7

1.6

1.4

1.2

1.1

1.1

1.0

.6

.5

Mar.

0.5

.5

.4

.6

.9

1.1

1.2

g

.6

.8

1.0

1.0

1.0

.7

.5

.3

.4

.7

.8

1 9

3,760

4,060

333

88

139

136

72

43

45

59

Apr.

91

65

34

22

18

17

68

16

11

1,350

985

1,280

1,340

625

110

61

41

30

23

17

897

984

371

224

136

86

54

36

23

18

May

16

13

11

10

9.7

9.7

281

92

1,160

218

224

120

50

25

21

16

11

9 7

14

osa

1,100

869

61

34

18

11

8.4

5.8

4.5

310

June

330

486

276

120

105

113

139

176

96

37

23

22

13

10

8.4

5.8

1,630

1,620

1,160

655

156

59

36

22

48

218

158

77

30

July

16

9.0

5.8

4.5

3.4

3.4

12

37

384

496

761

134

87

22

12

7.8

5.8

4.0

3.2

221

196

90

329

539

1 700

1,580

1,990

846

Aug.

124 '

244

100

41

21

11

8.4

5.8

5.2

3.7

2.9

2.3

1.7

1.3

1.0

.6

7.0

68

74

333

294

115

89

294

538

605

117

63

2,560

2,510

1,950

Sept.

1,320

954

148

50

55

463

236

32

77

32

50

31

350

67

86

105

27

12

9.7

7.1

5.8

4.5

2.9

2.1

1.7

1.0

.8

.9

1.0

1.1
TRINITY RIVER BASIN 27

Monthly discharge of West Fork of Trinity River at Bridgeport, Tex., for the year 

ending September SO, 1926

Month

January. ................... .... .... . ... ......... . _ ..

April... 

July.. 

August _______ ___ . _ __

The year 

Discharge in seoond-feet

Maximum

805 

348 

1.1 

1,370 

39 

4,060 

1,350 

1,160 

1,630 

2,230 

2,560 

1,320

4,060

Minimum

1.7 

.7 

.0 

.0 

.5 

.3 

11 

4.5 

5.8 

3.2 

.6 

.8

.0

Meaa

52.0 

40.5 

.13 

132 

6.67 

289 

301 

189 

261 

417 

329 

138

181

Run-off in 

acre-feet

3,200 

2,410

7.7 

8,110 

371 

17,800 

17,900 

11,600 

15,600 

25,600 

20,200 

8,200

131,000

WEST FOBK OF TEINITT RIVER AT LAKE WORTH DAM, ABOVE FORT WORTH, TEX.

LOCATION. Just above Lake Worth Dam, 4 miles above confluence with Clear 

Fork, and 4^ miles northwest of courthouse in Fort Worth, Tarrant County,

DBAINAGB AREA. 1,870 square miles (measured on topographic maps and base 

map of Texas).

RECORDS AVAILABLE. October 1, 1923, to September 30, 1926. Partial records 

of stage have been obtained by city of Fort Worth since June 1, 1917.

GAGE. Gurley 8-day water-stage recorder in concrete valve tower just above 

dam and 300 feet to the right of spillway.

DISCHARGE MEASUREMENTS. Made by wading or from bridge 2 miles belew 

gage.

CHANNEL AND CONTROL. Control formed by concrete dam.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 1.52 feet at 

6 p. m. September 6 (discharge, 4,560 second-feet); no flow during several 

periods.

1924-1926: Maximum stage recorded, 2.25 feet November 18, 1923 (discharge, from extension of rating curve, 8,390 second-feet); no flow during 

several periods.

DIVERSIONS. Diversions for municipal use only. Amount not known.

REGULATION. Storage above dam causes considerable regulation.

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

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

determined by applying mean daily gage heights to rating table. Records 

fair.

The following discharge measurements were made:

Decembers, 1925: Gage height, 0.40 foot; no flow.

April 17, 1926: Gage height, 0.46 foot; discharge, 677 second-feet.

August 9, 1926: Gage height, 0.01 foot; discharge, 23.3 second-feet.

96272 30 3
28 SUBFACE WATEE SUPPLY, 1926, PAET VIII

Daily discharge, in second-feet, of West Fork of Trinity River at Lake Worth Dam, 

above Fort Worth, Tex.,for the year ending September 30, 1926

Day

1... . .... .

2 . .-

3....... _ ..

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

6 

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.

74

225

190

144

102

78

54

22

17

4.0

6.6

.8

Nov.

43

4.0

.8

126

302

272

256

202

156

144

94

102

102

78

17

12

6 6

2.4

.8

Jan.

65

613

CU4.

1,080

1 260

735

399

225

166

110

86

102

Feb.

46

70

70

78

30

30

27

25

22

12

3.2

4.0

4.0

4.0

3

0

14

Mar.

37

9 nRn

2,680

3,280

3,910

2,480

Qlfi

617

418

364

122

Apr.

86

110

110

102

110

102.

122

102

156

287

437

1,030

1,590

1,900

1,870

1,650

664

364

190

110

367

688

806

1,490

1,690

1,110

551

318

190

122

May

110

102

102

86

78

122

144

102

190

456

916

1,620

1,490

806

399

214

144

144

318

256

190

418

769

861

594

318

202

144

102

86

133

June

122

214

670

999

889

513

302

214

179

179

156

102

70

38

27

12

6.6

6.6

14

110

617

1,260

1,330

688

302

214

225

179

179

168

July

133

102

86

70

46

22

38

. 202

256

272

418

494

972

999

782

513

287

190

256

86

62

70

94

144

240

214

318

670

1,050

1,520

1,800

Aug.

1,900

1,800

1,050

661

318

190

122

86

54

25

22

14

4.0

2.4

132

2,090

2,440

2,360

1,760

972

670

302

334

475

670

494

476

889

Sept.

1,620

1,900

2,290

2,480

2,170

2,890

3,700

1,760

972

456

287

202

156

102

166

168

144

144

133

102

78

70

38

25

20

4.0

2.4

.8

NOTE. No flow on days for which no discharge is given.

Monthly discharge of West Fork of Trinity River at Lake Worth Dam, above Fort 

Worth, Tex., for the year ending September 30, 1926

Month

October __ . ___ . ____________________

A.prU ........... ..................................

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

July

Discharge in second-feet

Maximum

225 

302 

1,260 

78 

3,910 

1,900 

1,520 

1,330 

1,800 

2,440 

3,700

3,910

Minimum

0 

0 

0 

0 

0 

86 

78 

6.6 

22 

0 

0

0

Mean

29.6 

64.0 

183 

15.8 

545 

614 

371 

330 

397 

645 

732

329

Run-off in 

acre-feet

1,820 

3,810 

11,300 

877 

33,600 

36,600 

22,800 

19, COO 

24,400 

39,700 

43,600

238,000

WEST FORK OF TRINITY RIVER AT FORT WORTH, TEX.

LOCATION. At old intake pump house of Fort Worth Power & Light Co.'s plant

in Fort Worth, Tarrant County, one-fourth mile below mouth of Clear Fork

of Trinity River and 150 feet above Paddock Viaduct. 

DRAINAGE AREA. 2,430 square miles (measured on topographic maps and base

map of Texas). 

RECORDS AVAILABLE. October 11, 1920, to September 30, 1926. Records of

stage have been obtained by United States Weather Bureau at Paddock

Viaduct since March 1, 1910.
TRINITY RIVER BASIN 29

CrAGE. Gurley graph water-stage recorder in old pump house of Fort Worth 

Power & Light Co.; inspected by employee of city of Fort Worth.

DISCHARGE MEASUREMENTS. Made by wading or from highway bridge 1,000 

feet above or from North Twelfth Street Bridge, 2 miles below gage.

CHANNEL AND CONTROL. Bed composed of rock, gravel, and clay. Right bank 

not subject to overflow; left bank has a protection leevee but is subject to 

overflow at high stages. Control is a concrete dam just below gage; 

permanent.

EXTREMES OF DISCHARGE. Maximum and minimum stages during the year not 

recorded. 1910-1926: Maximum stage recorded, 23.95 feet at 12.20 p. m. 

April 25, 1922 (discharge, 85,000 second-feet); no flow for several periods.

DIVERSIONS. The city of Fort Worth diverts for municipal use about 15 secondfeet from Lake Worth storage reservoir.

REGULATION. Flow is partly regulated by the storage at Lake Worth, which has 

a capacity of about 30,000 acre-feet.

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

Operation of water-stage recorder not satisfactory. Daily discharge determined by applying mean daily gage height to rating table. Records of 

daily discharge not sufficiently accurate for publication. Monthly records 

fair.

Discharge measurements of West Fork of Trinity River at Fort Worth, Tex., during 

the year ending September 30, 1926

Date

Apr. 16 . - 

Gage 

height

Feet 

1.04

3.34

Discharge

Sec.-ft. 

8.7

Date

A 1147 Q

Gage 

height

Feet 

3.44

1.20

Discharge

Sec.-ft. 

1,570

38.2

Monthly discharge of West Fork of Trinity River at Fort Worth, Tex., for the year 

ending September 30, 1926

Month

April.... _ ........... _ ....... ......... . .--..._.._.-

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

July -. . . . . . .. 

Discharge in second-feet

Maximum

791 

345

Minimum

3.0

2.0

3.7 

14

Mean

83.2 

79.0 

12.7 

241 

35.5 

"609 

"795 

"480 

"365 

"435 

735 

848

395

Run-off in 

acre-feet

5,110 

4,700 

780 

14,800 

1,970 

37,400 

47,300 

29,500 

21,700 

26,700 

45,200 

50,500

286,000

° Mean monthly discharge estimated.

WEST FORK OF TRINITY RIVER AT GRAWD PRAIRIE, TEX.

LOCATION. At highway bridge on Grand Prairie-Sowers-Irving road, 1 mile 

northeast of Grand Prairie, \% miles above Bear Creek, and 4}£ miles above 

Mountain Creek.

DRAINAGE AREA. 2,890 square miles (measured on topographic maps and base 

map of Texas).
30 StJEPACE WATER SUPPLY, 1926, PART VIII

RECORDS AVAILABLE. March 27, 1925, to September 30, 1926.

GAGE. Chain gage attached to downstream handrail of bridge; read by Jack Key.

DISCHARGE MEASUREMENTS. Made from highway bridge or by wading.

CHANNEL AND CONTROL. Bed composed of silt; fairly permanent. Right bank 

high and not subject to overflow; left bank subject to overflow for threefourths mile at high stages. Low-water control consists of shale shoals 

1,000 feet below gage. When Bear Creek is at high stage it may cause 

backwater at this station.

EXTREMES OF DISCHARGE. Maximum stage during year, 25.0 feet at 11 a. m. 

April 22, 8,980 second-feet; minimum discharge, 9.5 second-feet from 6.30 

p. m. September 24 to 7 a. m. September 25.

1925-1926: Maximum stage, 25.0 feet at 3.30 p. m. May 8, 1925, and 

11 a. m. April 22, 1926, 8,980 second-feet; minimum discharge, 3.2 secondfeet at 6 p. m. June 6, 1925.

DIVERSIONS. Numerous small diversions above gage. The largest is that by the 

city of Fort Worth, which diverts about 15 second-feet.

REGULATION.' Flow regulated by storage at Lake Worth, which has a capacity of 

about 30,000 acre-feet.

ACCURACY. Stage-discharge relation not permanent. Rating curve well 

defined below 5,000 second-feet and fairly well defined above. Gage read 

to hundredths twice daily. Daily discharge determined by shifting-control 

method or, on days of considerable fluctuation in stage, by averaging'discharge for intervals of a day, using gage-height graph based on daily gage 

readings, except as noted in footnote to table of daily discharge. Records 

fair.

Discharge measurements of West Fork of Trinity River at Grand Prairie, Tex., during 

the year ending September SO, 1926

Date

Oct. 6.. ........

Dec. 18 ____ .

Gage 

height

Feet 

2.34

2.65

Discharge

Sec.-ft.

27.0

Date

Apr. 19- 

Gage 

height

Feet 

5.10

4.32

Discharge

Sec.-ft. 

422

282

Date

July 16.... __ .

Aug. 20 

Gage 

height

Feet 

6.72

13.80

Discharge

Sec.-ft. 

701

2,240

Daily discharge, in second-feet, of West Fork of Trinity River at Grand Prairie, Tex., 

for the year ending September SO, 1926

Day

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

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

3... . . _ .

4....-..- .......

5. _ ..

6- _ .. .....

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

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

9 _ ........

10.. __ .........

11 

12 

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

14 

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

16- 

17 

18 

19 __ ...... _ ..

20 _ .........

Oct.

19

18

18

18

18

19

15

14

32

dCl

54

35

25

32

33

1,080

1,560

302

129

306

Nov.

35

31

33

33

39

49

202

606

554

630

660

588

552

570

505

81

63

51

Dec.

26

26

36

36

68

102

56

27

25

24

22

25

24

25

25

26

25

25

26

26

Jan.

37

47

50

39

32

30

30

32

31

Ort

30

27

31

32

30

qn

1,210

605

233

136

Feb.

201

143

115

108

122

94

81

80

88

79

KQ

62

53

59

58

67

50

44

129

Mar.

52

43

37

38

71

41

44

51

55

55

53

52

49

44

44

47

47

48

Apr.

263

164

171

171

157

150

143

171

157

1,010

1,000

696

981

1,340

1,520

1,590

1 240

734

446

327

May

263

201

178

171

150

143

186

186

171

4nfi

534

943

1,340

1,370

867

498

9OA

231

1,180

2.770

June

412

296

216

534

867

829

534

311

216

164

171

157

143

99

81

61

43

39

255

218

July

201

171

136

102

82

61

48

78

292

446

378

552

588

886

943

715

A&ft

279

178

129

Aug.

1,430

1,520

1,460

943

534

327

143

115

97

72

55

43

32

22

31

24

22

136

ft!5

2.060

Sept.

791

1,240

1,500

1,710

1,910

2,010

4,080

5,330

2,360

1,070

606

429

263

216

150

136

186

157

136

122
TRINITY RIVER BASIN 31

Daily discharge, in second-feet, of West Fork of Trinity River at Grand Prairie, Tex., 

for the year ending September 30, 1926 Continued

Day

1 ____ ........

22 _____ . _ ..

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

24. .

25.. __ 

26 

27 

28 _ 

29 . 

30 

31 

Oct.

311

263

201

143

IOQ

115

66

52

39

46

43

Nov.

49

44

39

40

35

32

26

27

29

Dec.

24

24

23

24

97

25

22

91

21

21

24

Jan.

201

8Q7

1,360

1,320

1 140

772

480

970

231

186

157

Feb.

82

79

4.9

52

53

66

61

47

Mar.

247

7QJ.

981

1,340

1

9 son

660

498

516

Apr.

1,270

4,850

1,260

2 430

1,810

1,050

772

498

344

May

636

279

395

696

791

570

344

201

171

150

158

June

235

1,320

1,260

1,260

867

678

905

446

263

201

July

89

86

278

534

247

263

231

970

516

943

1,260

Aug.

2,010

1,860

1,500

1,060

779

463

395

516

1,460

753

534

Sept.

99

84

fifi

34

20

28

39

37

40

NOTE. Gage heights in feet for days when stage was beyond limits of rating curve as follows: Apr. 22,20.7; 

Sept. 7,19.4; Sept. 8,22.6. Gage-height record believed in error Mar. 25-28; discharge estimated. Discharge 

interpolated or partly estimated Oct. 18 and 28.

Monthly discharge of West Fork of Trinity River at Grand Prairie, 1?ex., for the years 

ending September SO, 1&%5 and

Month

1925 

March 27-31 - 

May ________ _ _______ ____________

July...... 

September. _____________ , ___________

 jThe period ________________________

1925-26

May 

July....... ... 

September __ _ . ____________________

The year ______ , ________________

Discharge in second-feet

Maximum

35 

1,350 

8,340 

88 

214 

25 

104

1,560 

660 

102 

1,360 

201

4,850 

2,770 

1,320 

1,260 

2,060 

5,330

5,330

Minimum

23

20 

4.8 

9.0 

5.4 

4.5

14

26 

21 

27 

42 

37 

143 

143 

39 

, 48 

22 

12

12

Mean

28.0 

119 

1,630 

17.0 

31.7 

12.1 

20.6

167 

201 

30.0 

314 

81.2 

553 

963 

531 

436 

370 

678 

829

430

Bun-off in 

acre-feet

278 

7,060 

100,000 

1,010 

1,9,50 

743 

1,230

112,000

10,300 

12,000 

1,850 

19,300 

4,510 

34,000 

fi7,300 

32, 700 

25,900 

22,800 

41, 700 

49,300

312,000

NOTE. Monthly discharge for the year ending September 30, 1925, contains the record for May, which 

is not published in Water-Supply Paper 608. Daily discharge for the high-water period in May, not contained in that paper, is as follows: May 7, 3,880 second-feet; May 8, 8,340 second-feet: May 9, 7,530 secondfeet; May 10,6,190 second-feet; May 11, 6,350 second-feet; and May 12, 3,740 second-feet.

TRINITY RIVER AT DALLAS, TEX.

LOCATION. At Commerce Street viaduct in Dallas, Dallas County, 800 feet 

below Texas & Pacific Railway bridge and 5 miles below confluence of Elm 

and West Forks of Trinity River.

DRAINAGE AREA. 6,000 square miles (measured on topographic maps and base 

map of Texas).

RECORDS AVAILABLE. October 1, 1898, to December 31, 1899 (discharge not 

determined); July 1, 1903, to December 31, 1906; and October 1, 1920, to 

September 30, 1926. Gage-height record obtained by United States Weather 

Bureau since 1903.
32 SURFACE WATER SUPPLY, 1926, PART VIII

GAGE. Chain gage attached to downstream handrail of Commerce Street viaduct; 

read by employees of Dallas city engineer's office or by United States 

Weather Bureau observer.

DISCHARGE MEASUREMENTS. Made by wading at upstream side of Commerce 

Street viaduct or from " Miller's Ferry" bridge, about 6 miles below gage.

CHANNEL AND CONTROL. Channel practically straight for 1,000 feet above and 

600 feet below station. Right bank composed of clay and gravel, wooded, 

and subject to overflow; left bank not subject to overflow except at extremely 

high stages. Bed composed of clay and gravel, fairly permanent. Lowwater control is clay and gravel shoal about 300 feet below gage; high-water 

control not known. A lock and dam 13 miles below gage will back water at 

station to a stage of 11.65 feet when wickets are closed. This, however, 

rarely occurs.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 31.55 feet at 

7.30 a. m. April 23 (discharge, 11,500 second-feet); minimum stage, 4.31 

feet at 4.50 p. m. December 1 (discharge, 14.0 second-feet).

1898-1899, 1903-1906, 1921-1926: Maximum stage recorded, 42.35 feet 

at 5.15 a. m. April 27, 1922 (discharge, 75,100 second-feet); minimum stage, 

4.27 feet at 4 p. m. September 11, 1924 (discharge, 6.8 second-feet).

Maximum flood, from United States Weather Bureau records, 52.6 feet at 

6 p. m. May 26, 1908 (discharge not determined); during drought of 1917-18 

discharge was practically zero. Low stages not comparable, owing to 

shifting control.

DIVERSIONS. Only known diversions are for municipal uses.

REGULATION. Low-water flow is partly regulated by municipal dams on West 

Fork, 40 miles above, and on Elm Fork, 6 miles above gage.

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

all stages. Gage read to hundredths twice daily from October 1 to July 31; 

after that date, to tenths once daily. Daily discharge determined by applying mean daily gage height to rating table or, on days of considerable fluctuation in stage, by averaging discharge for intervals of a day, using gageheight graph based on daily gage readings. Records fair.

COOPERATION. Record of stage furnished by United States Weather Bureau 

August 1 to September 30.

Discharge measurements of Trinity River at Dallas, Tex., during the year ending

September 80, 1926

Date

Nov. 12... ......

Nov. 14.. __ ..

Gage 

height

Feet 

8.76

7.83

Discharge

Sec.-ft. dun

335

Date

Dec. 10 _____

Jan. 18.. .......

Gage 

height

Feet 

4.71

20.27

Discharge

Sec.-ft. 

30.9

3,520

Date

Jan. 19 . __ .

Gage 

height

Feet 

12.30

10.17

Discharge

Sec.-ft, 

1,140

758
TRINITY RIVER BASIN 33

Daily discharge, in second-feet, of Trinity River at Dallas, Tex., for the year ending

September SO, 1926

Day

1 ___ .... __ .

2 

3 ..... __ ...

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

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

6... __ . ___ ..

7.. ....... ___ .

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

9.. ____ . __ .

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

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

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

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

14... __..__ __

15 ..........

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

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

18 ..........

19 _____ .. _ .

20 .... _ .....

21 ___ .........

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

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

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

26 ...... _ ...

26.. _ . _ ......

27 _____ . __ .

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

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

30. 

31 ________ .

Oct.

26

21

22

20

20

20

21

70

120

31

27

47

32

29

104

822

6,070

6,350

4,850

1,140

395

287

233

172

142

107

92

55

42

47

40

Nov.

32

29

30

30

30

82

332

927

1,420

777

395

467

362

317

233

207

152

88

64

52

42

37

31 '28

30

37

26

26

26

22

Dec.

16

15

23

20

21

64

52

37

27

29

28

23

22

26

26

26

29

28

" 21

21

23

23

23

23

23

24

26

34

25

26

25

Jan.

31

58

30

44

44

in

33

33

34

32

29

32

29

30

33

96

1,680

4,260

1,360

777

1,360

3,520

4,710

2,820

1,960

1,720

1,450

949

777

503

Feb.

485

332

123

78

103

QQ

92

71

64

58

58

47

47

44

37

44

42

42

dn

42

82

50

40

34"U.

07

37

44

Mar.

34

34

32

37

4n

44

42

42

4/1

37

37

42

4-fi

37

37

34

37

40

47

388

4,660

6,570

5,860

5,450

C Qftfi

A Aftfl

2,380

1,190

905

777

Apr.

657

449

332

347

233

1fi9

142

142

272

2,160

6,040

A Of\f\

2,980

9 4.QH

2,110

1,990

1,900

1,330

817

577

2,530

9,080

11,100

7,020

5,300

5,150

3,780

2,600

2,290

1,810

May

1,160

949

677

717

1,240

1,330

1,220

1,140

3,260

5,000

3,820

3,940

3,180

3,020

2,600

1,960

1,690

1,390

1 540

6,250

7,760

5,200

3,060

949

DDK

557

332

246

272

1,080

June

2,870

6,570

6,960

7,630

8,150

4,890

1,250

597

4AQ

317

287

259

233

162

142

78

74

152

1 880

2,850

2,240

1,630

1,360

i ion

2,260

2,660

1,270

597

July

431

317

233

162

123

92

78

983

3,100

1,750

2,170

2,320

1,720

4,210

6,740

7 700

5,300

981

467

302

220

413

3 nin

6,240

6,900

6,680

6,300

6,900

8,150

8,900

10,000

Aug.

8,900

5,200

2,140

1,750

949

617

413

302

220

172

132

92

92

71

47

64

58

590

3,520

5,400

6,090

3,540

2,460

1,930

2,230

2,320

797

777

1,120

2,050

2,260

Sept,

1,420

2,230

1,780

1,900

2,080

3,080

8,300

8,600

6,160

2,400

1,160

637

467

347

287

272

220

246

172

172

152

132

115

92

85

71

58

58

58

52

Monthly discharge of Trinity River at Dallas, Tex., for the year ending September

SO, 1926

Month

December __________________________

January ................. ..... . ...................

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

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

August.. -- .

Discharge in second-feet

Maximum

6,350 

1,420 

64 

4,710 

485 

6,870 

11,100 

7,760 

8,150 

10,000 

8,900 

8,600

11,100

Minimum

20 

22 

15 

29 

34 

32 

142 

246 

74 

78 

47 

52

15

Mean

692 

211 

26.7 

935 

82.4 

1,250 

2,660 

2,170 

2,070 

3,320 

1,820 

1,430

1,400

Run-off in 

acre-feet

42,600 

12,600 

1,640 

57,500 

4,570 

76,700 

158,000 

134,000 

123,000 

204,000 

112,000 

84,900

1,010,000

TRINITY RIVER NEAR OAEWOOD, TEX.

LOCATION. At International-Great Northern Railroad bridge 4 miles northeast 

of Oakwoodj Anderson County, and 5 miles below the mouth of Keechi Creek.

DRAINAGE AREA. 12,800 square miles (measured on United States Army progressive military maps and base map of Texas).

RECORDS AVAILABLE. October 1, 1923, to September 30, 1926. Records of 

stage have been obtained by United States Weather Bureau since September 1, 1904.

GAGE. Chain gage attached to upstream side of railroad bridge.

DISCHARGE MEASUREMENTS. Made from bridge at gage or by wading.
34 SURFACE WATER SUPPLY, 1926, PART VIII

CHANNEL AND CONTROL. Bed composed of sand, mud, and gravel. Channel 

straight for 400 feet above and half a mile below gage. Right bank of earth 

and not subject to overflow; left bank of earth, wooded, and overflowed at a 

stage of 32 feet. Control is three-fourths mile below gage; shifts. Channel 

above and below bridge is affected by log jams.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 38.5 feet May 2 

(discharge, 20,500 second-feet); minimum discharge, 62 second-feet October 10-12 and September 27-30.

1924-1926: Maximum stage recorded, 43.3 feet December 25-26, 1923 

(discharge, from extension of rating curve, 50,800 second-feet); minimum 

stage not determined but discharge probably less than 28 second-feet in 

August, 1925.

DIVERSIONS. None.

REGULATION. None.

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

from 40 to 48,000 second-feet. Gage read to tenths once daily. Daily discharge determined by applying mean daily gage height to rating table or, 

on days of considerable change in stage, by applying to rating table mean 

daily gage height obtained from graph based on one daily reading, or, on 

days of large fluctuation in stage, by averaging discharge for intervals of a 

day. Shifting-control method used October 1-12, 26, 29-31, November 17 

to January 17, August 12-21, and September 20-30:

COOPERATION. Gage-height record furnished by United States Weather Bureau.

The following discharge measurements were made:

January 15, 1926: Gage height, 4.90 feet; discharge, 184 second-feet.

July 22, 1926: Gage height, 29.95 feet, discharge, 11,400 second-feet.

Daily discharge, in second-feet, of Trinity River near Oakwood, Tex., for the year 

ending September SO, 1926

Day

1.. __ .

2 ___ .

3 

4 __ ..

5 __ ..

6 _ ....

7 ....

8_ 

9 ___ .

10 .

11 .......

12 __ ..

13 _ ....

14 ___ .

15.......

16 

17 .......

18 .......

19 

20 

21 _ ....

22 .......

23.......

24 .......

25 __ ...

26 .......

27 

28 

29 .

30 .

31 __ ...

Oct.

211

198

146

105

92

80

70

70

62

62

62

67

108

133

674

1,730

3,790

4,990

6,400

7,010

6,460

5,200

2,630

1,550

Q14

1,390

1,420

914

542

Nov.

534

1 14ft

1,500

1,240

6,990

5,910

8,740

10,400

11,600

19 7ftft

13,200

11,700

6,270

2,470

890

820

708

562

522

447

359

295

265

224

211

211

198

Dec.

165

165

128

128

128

128

128

165

146

128

128

128

128

128

165

165

165

211

211

186

165

146

146

128

128

128

128

128

128

Jan.

128

146

186

752

708

503

393

265

237

211

186

165

175

342

932

6,100

8,860

12,500

14,600

15,700

16,400

16,300

15,700

14,800

12,200

7 980

4,670

3,100

Feb.

9 ^4ft

1 OQA

1 600

1 OQA

1,110

QQQ

774

665

602

KOO

522

484

447

429

411 <tt«

393

376

376

376

376

359

326

326

326

Mar.

310

9Rfi

280

OQQ

501

1 onA

4,150

6,350

7 920

a 4Qn

10,600

12,300

14,000

15, 500

15,900

5,280

2,170

1,360

3,180

8,500

7,750

9,040

10,400

U fiflA

12,500

13,200

14,200

16,000

17 ' 400

Apr.

17,800

18,200

18,600

18,200

16,200

8,550

3,700

1,980

1,600

1,720

2,010

2,780

5,530

7,920

9,420

10,100

9,160

7,180

5,580

4,570

5,130

9,300

9,820

11,200

13,000

15,900

17,000

17,700

18,000

May

18, 100

20,500

19 300

17,800

14,800

9,420

5r 580 4 nan

3,590

S an

6,790

12, 400

13,. 800

14,800

15, 000

12,900

9,360

7,180

6,850

8,440

9,680

10,800

12, 100

12,600

12,200

11,300

9,300

5. 530

2,530

1 ' 660

June

1,340

1,240

1,740

3,740

7,520

8,440

9 run

Q flsn

10,000

10,200

10,400

9 w>

1,720

1,040

843

752

1 780

6,240

5,670

2,200

1,580

1,920

2,920

3,100

3,790

4,000

4,780

6,240

6,680

July

5,960

4,830

3,740

2,530

1,860

1,340

938

752

665

1,590

4,670

6,570

8,500

9,960

11,000

11,500

11,800

11,400

11,000

10,800

11,100

11,900

13.200

15,000

16,300

16,900

16,900

16,500

15,500

13,800

Aug.

11,600

Q Ofifl

9,360

9,230

9,420

9,750 in nun

8,620

4,310

1,720

1,160

914

730

602

708

447

359

310

280

251

224

828

3,200

5,040

5.800

8,920

4,150

3,050

2,830

2,340

1,690

Sept.

1,340

1,830

2,240

2,300

1,950

1,860

2,080

4,990

6,350

7,750

O Ififl

10,200

11,000 ii,«0

11,200

6,440

2,200

1,160

1,140

1,080

820

602

310

146

98

70

62

62

62

62
TRINITY EITBR BASIN 35

Monthly discharge of Trinity River near Oakwood, T ex., for the year ending September

80, 1926

Month

October ___________________________

November. _________________________

March ____________________________

April.. -- ...._......._.._...__-_._._-- ...._..-.-_-.

May ... ___ . __________ . _ . _ ... ____ .

June. __ . _________________________

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

September ______ . .................................

Discharge in second-feet

Maximum

7,010 

13,200 

211 

16,400 

2,340 

17,400 

18,600 

20,500 

10,400 

16,900 

11,600 

11,600

20,500

Minimum

62 

198 

128 

128 

326 

265 

1,600 

1,660 

752 

665 

224 

62

62

Mean

1,540 

3,820 

146 

5,000 

716 

7,860 

10,100 

10, 400 

4,770 

9,040 

4,120 

3,340

5,100

Run-off in 

acre-feet

94,700 

228,000 

9,010 

308,000 

39,700 

483,000 

600,000 

639,000 

284,000 

556,000 

253,000 

199,000

3, 690, 000

TRINITY RIVER AT RIVERSIDE, TEX.

LOCATION. At International-Great Northern Railroad bridge at Riverside, 

Walker County, 2 miles below mouth of Harmon Creek.

DRAINAGE AREA. 15,500 square miles (measured on topographic maps, United 

States Army progressive military maps, and base map of Texas).

RECORDS AVAILABLE. January 1, 1903, to December 31, 1906; October 1, 1923, 

to September 30, 1926. Records of stage by United States Weather Bureau 

since July 1, 1903.

GAGE. Chain gage attached to downstream side of railroad bridge near center 

of draw-span.

DISCHABGE MEASUREMENTS. Made by wading below gage or from highway 

bridge or railroad bridge.

CHANNEL AND CONTKOL. Channel straight for 400 feet above and 1,000 feet 

below gage. Bed composed of sand clay; fairly permanent. Right bank 

not subject to overflow; left bank subject to overflow at extremely high 

stages. Control for low stage is rock and gravel riffle 500 feet below gage; 

for high stages, probably lock and dam 10 miles below gage. Locks not used.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 38.1 feet 

April 23 (discharge, 63,300 second-feet, determined from extension of rating 

curve and may be subject to considerable error); minimum discharge, 115 

second-feet October 12.

1903-1906, 1924-1926: Maximum stage recorded, that of April 23, 1926; 

minimum stage, 0.2 foot August 20-26 and September 8-13,1925 (discharge, 

70 second-feet).

DIVERSIONS. None of importance.

REGULATION. None.

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

from 100 to 45,000 second-feet and extended above to cover range of stage 

for year. Gage read to nearest tenth once daily. Daily discharge determined by applying daily gage height to rating table or, on days of considerable fluctuation in stage, by averaging discharge for intervals of a day, using 

gage-height graph based on daily gage readings. Daily discharge not sufficiently accurate for publication. Monthly records fair.

COOPERATION. Gage-height records furnished by United States Weather Bureau.

The following discharge measurements were made:

January 14: Gage height, 2.94 feet; discharge, 703 second-feet.

August 3: Gage height, 17.29 feet; discharge, 14,700 second-feet.
36 SURFACE WATER SUPPLY, 1926, PART VIII

Monthly discharge of Trinity River at Riverside, Tex., for the year ending September

SO, 1926

Month

October ___________________________

December ________________________ ...

January ___________________________

February __________________________

May _________ , __________________

June.. _ . _________________________

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

September. _________________________

The year _____ . ______________ ___

Discharge in second-feet

Maximum

16,400 

64,100 

830 

18,100 

8,100 

36,200 

63,300 

32,000 

13,300 

16,700 

16,500 

11,500

63,300

Minimum

115 

875 

540 

540 

925 

875 

6,350 

6,440 

1,300 

1,080 

540 

275

115

Mean

4,020 

13,600 

675 

7,260 

1,970 

14,100 

21,600 

15,000 

6,480 

9,080 

5,580 

3,900

8,630

Kun-ofl in 

acre-feet

247,000 

810,000 

41,500 

446,000 

109,000 

866,000 

1, 290, 000 

922,000 

385,000 

558,000 

343,000 

232,000

6,250,000

TRINITY RIVER AT ROMAYOR, TEX.

LOCATION. At Gulf, Colorado & Santa Fe Railway bridge one-fourth mile west 

of railroad station at Romayor, Liberty County, 2}£ miles below mouth of 

Big Creek.

DRAINAGE AREA. 17,200 square miles (measured on topographic maps, United 

States Army progressive military maps, and base map of Texas).

RECORDS AVAILABLE. May 4, 1924, to September 30, 1926. Records of stage 

by United States Engineer Corps from July 28, 1915, to February 14, 1918.

GAGE. Chain gage on downstream side of railroad bridge; read by Ed Wyatt. 

Gage readings are from base of rail to water surface.

DISCHARGE MEASUREMENTS. Made from upstream side of railroad bridge.

CHANNEL AND CONTROL. Bed of stream composed of sand; shifts. Channel 

straight for 500 feet above and 200 feet below gage. Left bank wooded and 

not subject to overflow; right bank wooded and subject to overflow for a 

distance of 3 miles. Control is indefinite; fairly permanent.

EXTREMES OP'DISCHARGE. Maximum stage recorded during year, 20.90 feet 

at 4.20 p. m. April 26 to 7.15 a. m. April 27 (discharge, 46,900 second-feet); 

minimum stage, 53.10 feet at 6.20 p. m. October 1 (discharge, 190 secondfeet).

1924-1926: Maximum stage recorded, that of April 26-27, 1926; minimum, 

stage, 53.46 feet August 21-22, 1925 (discharge, 132 second-feet).

DIVERSIONS. None of importance.

REGULATION. None.

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

from JOO to 47,000 second-feet. Gage read to half-tenths twice daily. 

Daily discharge determined by applying mean daily gage height to rating 

table or, on days of considerable fluctuation in stage, by averaging discharge 

for intervals of a day, using gage-height graph based on daily gage readings. 

Records fair.

Discharge measurements of Trinity River at Romayor, Tex., during the year ending

September 30, 1926

Date

Jan. 13 __ . _________

Apr. 26... . . _

Gage 

height

Feet 

-48. 77

-20.98

Discharge

Sec.-ft. 

1,620

46,600

Date

Sept. 28 __ 

Gage 

height

Feet 

-36. 46

-50.55

Discharge

Sec.-ft. 

13,300

959
TRINITY KIVEE BASIN 37

Daily discharge, in second-feet, of Trinity River at Romayor, Tex., for the year ending

September SO, W2Q

Day

1 .

2......

3 .

4. ..

6 

6 

7......

8 ...

9 

10 

11. .....

12......

13 __ .

14... ...

16 ......

16 

17......

18 

19 ......

20 

21 

22 

25 

24 

25 

26 

27 

28 

29 

30 

31 

Oct.

200

230

250

250

250

250

270

250

250

240

220

210

270

515

1,400

6,600

14,600

17,100

14,200

10,400

7,940

6,810

5,180

5,720

7,400

16,600

14,900

10,400

11,500

14,200

15,500

Nov.

9,140

6,260

4,190

3,230

8,200

31,300

39,400

44,000

45,600

43,700

41,800

40,900

36,700

30,100

23,800

16,800

12,700

11,100

15,800

14,800

8,710

7,610

6,170

4,910

3,020

2,240

1,840

1,840

1,740

1,440

Dec.

1,390

1,340

1,340

1,250

1,200

1,160

1,120

1,080

1,000

930

930

860

825

1,000

1,390

1,540

1,950

2,300

2,360

2,180

1,900

1,590

i <ton

1,440

1,300

1,160

1,160

1,040

1,040

1,300

1,790

Jan.

2,180

22,700

26,500

Ifi QAfl

10,500

9 300

7*830

6,620

5,900

4,110

2,300

1,640

1,540

1,490

1,440

4,750

11,000

11,200

9,300

9,660

11,600

14,100

15,700

17,100

17,400

17,200

16,500

15,900

15,500

14,800

Feb.

19 Rflfi

10,500

7,110

4,830

4,430

3,090

2,670

2,420

2,300

2,120

2,000

1,950

1,690

1,590

1,490

1,300

1,300

1 300

1,300

1,250

1,200

1,160

1,160

1,120

1,120

1,080

1,080

1,040

Mar.

1,000

965

930

965

1,640

5,090

7,720

6,710

8,160

19,600

21,800

20,200

18,800

17 000

14,700

14,600

17 000

20,000

18,400

16,400

14,100

16,500

23,800

36,100

37,600

33,600

25,400

22,600

23,800

Apr.

26,300

27,500

29,400

27,500

25,000

22,200

21,000

19,500

17, 800

15,700

17,100

12,900

9,780

8,160

7,010

6,710

8,050

10,500

10,700

10,400

17,800

35,000

43,400

45,000

46,600

46,600 AA 4nn

33,000

May

o« onn

21,600

20,200

22,200

25,400

28,600

32,800

30,900

27,700

20,600

13,100

8,600

7,720

10,700

11,800

13,600

14, 100

14, 600

14,500

19 onn

11,000

9 0flfi

9,180

10,000

10,900

11,600

12,100

12,400

12,300

10,900

June

8,270

5,900

4,350

4,030

3,510

2,420

1 QWI

6,910

8,380

9,300

9,660

10,700

10,300

10,300

9,660

7,720

5,180

3,160

2,180

1,790

1,740

4,430

10,500

13, 600

8,270

6,170

6,170

6,350

6,170

July

5,450

5,630

5,810

6,350

5,810

5,000

4,430

4,110

3,510

2,240

2,060

1,840

1,690

2,420

5,270

6,810

8,940

9,420

10,300

10,600

11,300

11,700

12, 700

13,000

12,800

12,300

11,900

11 $inn

13,400

14,100

14,800

Aug.

15,100

15,300

15,500

13,600

11,500

10,100

9,660

9,060

9,300

9,540

8,600

6,530

4,270

2,880

2,120

1,640

1,390

1,300

1,250

1,200

1,080

1,040

965

965

895

1,160

2,880

5,090

5,090

4,670

4,270

Sept.

3,580

3,160

2,810

2,120

1,900

1,900

2,000

2,360

2,420

2,540

2,810

3,720

6,170

7,410

8,490

9,540

9,780

9,900

9,540

6,260

4,750

2,000

1,540

1, 2O>

1,300

l,30fr

1,200

895

720

600

Monthly discharge of Trinity River at Romayor, Tex., for the year ending September

30, 1926

Month

April ______________________________

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

The year _______________________

Discharge in second-feet

Maximum

17, 100 

45,600 

2,360 

26,500 

12,800 

37,600 

46,600 

32,800 

13,600 

14,800 

15,500 

9,900

46,600

Minimum

200 

1,440 

825 

1,440 

1,040 

930 

6,710 

7,720 

1,740 

1,690 

895 

660

200

Mean

5,940 

17,300 

1,370 

10,600 

2,730 

16,000 

23,100 

16,000 

6,570 

7,980 

. 5, 740 

3,800

9,790

Run-off in 

acre-feet

365,000 

1, 030, 000 

84,000 

651,000 

152,000 

983,000 

1, 380, 000 

986,000 

391,000 

491,000 

353,000 

226,000

7,090,000

CLEAR FORK OF TRINITY RIVER AT FORT WORTH, TEX.

LOCATION. At Texas & Pacific Railway bridge 100 feet above highway bridge on 

Fort Worth-Granbury road, 200 feet below upper Texas & Pacific Dam, 3 

miles above confluence with West Fork of Trinity River, and 3 miles southwest of Tarrant County courthouse in Fort Worth.

DRAINAGE AREA. 522 square miles (measured on topographic maps and base 

map of Texas).

RECORDS AVAILABLE. March 8, 1924, to September 30, 1926.

GAGE. Stevens continuous recorder attached to downstream side of left pier of 

railroad bridge.
3g SUBFACE WATEB SUPPLY, 1926, PART VIII

DISCHARGE MEASUREMENTS. Made from highway bridge or railroad bridge or 

by wading.

CHANNEL AND CONTROL. Channel straight for 300 feet above and below highway 

bridge. Bed composed mostly of rock. Banks covered with small amount 

of brush and subject to overflow at extremely high stages. Control for all 

but extremely high stages is concrete dam 750 feet below gage; permanent. 

Railroad embankments below will probably be control for high stages.

EXTREMES OP DISCHARGE. Maximum stage recorded during year, 8.90 feet at 

9 a. m. May 19 (discharge, 6,870 second-feet); no flow for several periods.

1924-1926: Maximum discharge, 7,400 second-feet at 7 a. m. May 7, 1925; 

no flow for several periods.

DIVERSIONS. Practically all of low flow is diverted 800 feet below gage by Texas 

& Pacific Railway; amount not known.

REGULATION. Low flow regulated by dam just above gage.

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

defined below 900 second-feet and extended through one measurement made 

at stage of 8.33 feet. Operation of water-stage recorder satisfactory. Daily 

discharge determined by applying mean daily gage height to rating table or 

by averaging discharge for intervals of a day. Daily discharge records not 

sufficiently accurate for publication. Monthly records fair.

Discharge measurements of Clear Fork of Trinity River at Forth Worth, Tex., during 

the year ending September 30, 1926

Date

Oct. 5.. ........

Oct. 6. ....... ..

Oct. 15. ___ .

Oct. 16 ____ .

Gage 

height

Feet

1.67

.25

4.06

Discharge

Sec.-ft. 

0.0

.0

.0

720

Date

Oct. 17. ........

Gage 

height

Feet

3 4.Q

2.62

.68

2.65

Discharge

Sec.-ft.

Q1O

5.1

.0 2.0

Date

Apr. 17 

Aug. 19. 

Gage 

height

Feet 

2.72

2.83

4.02

Discharge

Sec.-ft. 

16.2

46.8

655

1 Estimated.

Monthly discharge of Clear Fork of Trinity River at Fort Worth, Tex., for the year 

ending September 30, 1926

Month

November.----. -. -... ....

December ____ . . __ __ .. ___ ......

February. .. ____ '. ....................................

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

May _____________________________

June.. __ ____ ___ _________ . ........

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

August ______________________________

Discharge in second-feet

Maximum

936 

164 

2.0 

587 

13 

986 

1,610 

2,030 

214 

154 

1,480 

2,330

2,330

Minimum

0.0 

.0 

.0 

.7 

.0 

.0 

13 

4.4 

3.5 

.0 

.0 

1.9

.0

Mean

42.6 

8.68 

.20 

49.9 

5.42 

48.7 

173 

100 

28.4 

32.3 

75.0 

104

55.9

Run-off in 

acre-feet

2,620 

516 

12.3 

3,070 

301 

3,000 

10,300 

6,160 

1,690 

1,990 

4,610 

6,200

40,500

NOTE. Discharge estimated or partly estimated Aug. 5-19.

VILLAGE CREEK NEAR HANDIEY. TEX.

LOCATION. At Fort Worth-Webb road crossing, 3}^ miles south of Handley, 

Tarrant County, and 8 miles above confluence of Village Creek with West 

Fork of Trinity River.
TKINITY RIVER BASIN 39

DRAINAGE ABEA. 130 square miles (measured on topographic maps and base 

map of Texas).

RECORDS AVAILABLE. June 7, 1925, to September 30, 1926.

GAGE. Inclined and vertical staff gage on left bank, 70 feet above bridge, read 

by Samuel Hand.

DISCHARGE MEASUREMENTS. Made from bridge or by wading.

CHANNEL AND CONTROL. Channel straight for 300 feet above and 200 feet below 

gage. Bed of heavy gravel; permanent. Right bank is ledge reck; not 

subject to overflow. Left bank of earth; heavily wooded and subject to 

overflow at a stage of 16.8 feet. At stage of 14 feet water flows through a 

slough on left bank 800 feet from bridge. Control is limestone riffle 10 feet 

below gage; permanent.

EXTREMES OF DISCHARGE. Maximum stage during period of record from graph 

drawn on basis of two daily gage readings, 11.5 feet at 4 a. m. May 19 (discharge, 4,180 second-feet, determined from poorly defined curve); no flow for 

several periods.

DIVERSIONS. None.

REGULATIONS. None

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

below 400 second-feet and poorly defined from 400 to 5,000 second-feet by one 

measurement made by slope method. Gage read to half-tenths twice daily. 

Daily discharge determined by applying mean daily gage height to rating 

table or, for days of considerable fluctuation in stage, by averaging discharge 

for intervals of a day, using gage-height graph based on daily gage readings. 

Records fair except those for high water, which are poor.

Discharge measurements of Village Creek near Handley, Tex., during the years 

ending September 30, 1925 and 1926'

Date

1926 

Mays..... ... ..

Sept. 5 

Oct. 16 . 

Gage 

height

Feet 

12.57

3.99

Discharge

Sec.-ft. 

 4,820

0

407

Date

1926 

Oct. 16 __ . _

Oct. 17 __

Oct. 19.-. _ 

Gage 

height

Feet 

2.95

2.22

1.90

Discharge

Sec.-ft. 

108

11.5

.72

Date

1926 

Apr. 19. ........

Gage 

height

Feet 

1.93

Discharge

Sec.-ft. 

2.32

 Slope measurement, with n=0.040 in Kutter's formula.

Daily discharge, in second-feet, of Village Creek near Handley, Tex., for the period 

June 7, 1925, to September SO, 1926

Day

1- 

2 ...

3_ 

4_ 

5... ...

6 .

7.. .

8... 

9- .

'10. 

11 

12... ...

13. 

14.. .

15 _ ...

16.. 

17. .

18 

19 

20 

Sept.

29

4.4

.7

.4

Oct.

0.2

.2

.2

.2

.1

297

15

3.5

1.2

.6

Nov.

34

11

6.7

5.3

2.9

2.5

1 2

8

6

4

3

Dec.

0.2

1.2

.7

.4

Jan.

0.8

.7

.4

.2

.2

.2

.5

.8

298

233

135

123

99

Feb.

0 8

8

8

8

8

8

8

8

8

8

8

8

8

8

8

6

6

6

6

Mar.

0.5

.4

.4

.4

.7

2.9

2.9

2.9

2.9

2.9

2.9

2.9

2.9

2.9

2.9

2.9

2.9

2.9

2.9

2.9

Apr.

2.9

2.9

9 Q

2.9

2.9

2.9

2.9

9 Q

2.9

855

189

123

123

31

Ql

31

13

2.9

189

134

May

2.9

2.9

9 Q

2.9

2.9

2.9

2.9

9 Q

.8

.8

.8

.8

.8

.8

.6

.5

.5

1,870

120

June

21

13

8.0

5.9

5.3

4.4

2.9

9 Q

9 Q

2.9

2.9

2.9

9 Q

9 Q

1 a

.6

.4

.4

78

2.9

July

2.9

2.9

9 Q

2.9

2.9

2.9

.6

.8

.6

.5

 .5

.5

9 Q

9 Q

1.8

1.2

.8

.8

.8

Aug.

0.7

.6

.6

.5

.4

.4

.2

.1

53

25

6.7

Sept.

45

25

6.7

1.8

.4

15

15

2 9

9 Q

.8

.5

.4

.4

.4

.1
40 SURFACE WATER SUPPLY, 1926, PART VIII

Daily discharge, in second feet, of Village Creek near Handley, Tex., for the period

June 7, 1925, to September 80, 1926 Continued

Day

21--- 

22--. 

23--. 

24.-- 

25J.. 

26.-- 

27-.. 

28-.- 

29-.- 

30.-. 

31-.- 

Sept.

1.8

.1

.2

.3

Oct.

0.5

.3

.2

.2

.2

.1

Nov.

1.8

.7

.4

.4

.3

Dec.

0.2

Jan.

K7

16

5.3

2.9

9 Q

2.9

2.0

1.8

1.2

.8

.8

Feb.

0.6

.6

.6

.5

.5

.5

.5

Mar.

240

2 1

2 2

2.9

2 9

2.9

O Q

9 Q

2.9

Apr.

QOK

685

450

999

80

9 Q

0 Q

2 Q

2 9

2 Q

May

10

2 9

2 9

9 Q

2 9

2.9

2 9

2.9

9 Q

9 Q

83

June

341 001

15

2.9

2 9

585

01

10

8.0

2.9

July

0.6

.6

194

17

9 Q

2.9

2 Q

2.5

1.8

1.2

.8

Aug.

0

<>

2.6

2 9

1.8

.6

.5

20

74

67

Sept.

60

6.8

 NOTE. No fbw June 7 to Aug. 31,1925, except Aug. 23 (0.2 second-foot). No flow on days for which 

discharge is not shown.

Monthly discharge of Village Creek near Handley, Tex., for the period June 7,1925,

to September SO, 1926

Month

1925

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

The period.- .. ___ .. _ _____________

1925-26

July---..- 

Discharge in second-feet

Maximum

0.0 

.0

.2 

29

297 

34 

1.2 

298 

.8 

857 

925 

1,970 

585 

194 

74 

60

1,970

Minimum

0.0 

.0 

.0 

.0

.0 

.0 

.0 

.0 

.5 

.0 

2.9 

.5 

.4 

.5 

.0 

.0

.0

Mean

0.0 

.0 

.01 

1.23

10.3 

2.31 

.0? 31:?o

37.6 

136 

72.2 

46.6 

8.42 

8.33 

6.16

30.1

Kun-oS in 

acre-feet

0.0 

.0 

.4 

73.2

73.6

634 

137 

5.4 

1,960 

38.7 

2,310 

8,080 

4,440 

2,770 

518 

512 

367

21,800

MOUNTAIN CREEK NEAR GRAND PRAIRIE, TEX.

LOCATION. At Grand Prairie-Duncanville highway bridge, 3% miles southeast 

of Grand Prairie, Dallas County, and 5% miles above confluence with West 

Fork of Trinity River.

DRAINAGE AREA. 267 square miles (measured on topographic maps and base 

map of Texas).

RECORDS AVAILABLE. March 5, 1925, to September 30, 1926.

GAGE. Stevens continuous recorder at upstream side of bridge on left bank; 

attended by Geological Survey engineers.

DISCHARGE MEASUREMENTS. Made from upstream side of highway bridge or. 

by wading.

CHANNEL AND CONTROL. Channel straight for 100 feet above and below gage. 

Bed of silt. Banks of earth; covered with timber; probably shift; subject 

to overflow at high stages. One channel at low and intermediate stages 

and several at high stages. Levee 20 feet high 400 feet to right of bridge. 

Low-water control is mud bar three-fourths mile below gage; shifts. Highwater control is stretch of creek and timber on banks.
TRINITY KIVER BASIN 41

EXTREMES OF DISCHABGE. Maximum stage during year, from water-stage 

recorder, 18.00feet at 3 a. m. April 22 (discharge, 3,110 second-feet); no flow 

for several periods during year.

1926-1926: Maximum discharge, 3,300 second-feet, at 6 p. m. May 9, 

1925; no flow during several periods.

DIVERSIONS. None.

REGULATION. None.

ACCURACY. Stage-discharge relation not permanent. Rating curve fairly well 

defined below 200 second-feet and poorly defined above. Operation of 

water-stage recorder satisfactory, except for short breaks in record. Daily 

discharge determined by shifting-control method for low and intermediate 

stages and by applying mean daily gage height to rating table for high 

stages or, on days of considerable fluctuation in stage, by averaging discharge 

for intervals of a day, except as noted in footnote to table of daily discharge. 

Records poor.

Discharge measurements of Mountain Creek near Grand Prairie, Tex., during the 

year ending September SO, 1927

Date

Oct. 6.. __ ..

Oct. 19 ____

T>ec. 1.... ......

Gage

Feet 

3.70

4 At)

3.68

Discharge

Sec.-ft.

a ft Q

.01

Date

Jan. 6 ..

Feb. 6 

Apr. 19 

Gage 

height

Feet 

3.53

3.90

4.30

Discharge

Sec.-ft. 

0.00

1.93

5.7

Date

July 27.. .-

Aug. 20 

Qage 

height

Feet 

4.00

3.42

3.50

Discharge

Sec.-ft. 

7.6».20

».80

1 Estimated.

Daily discharge, in second-feet, of Mountain Creek near Grand Prairie, Tex., for the 

year ending September SO, 1926

Day

1 ______

2.... _ ....

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

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

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

 6 ..... ...

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

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

9 . _

10 

11 __ .... ...

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

13 ...

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

15--. 

16-.... ..

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

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

19.- 

20--. 

21 __ . __ ...

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

23

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

25--- 

26-- 

27-.. . .

J» ........

39 .

-30.-... 

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

Oct.

0.5

.4

.2

.1

138

393

26

8.6

2.2

.9

.7

.5

.4

.2

.1

.1

Nov.

1,5

667

1,390

4-ft

16

9.6

4.6

2.8

.9

.7

.5

.3

.2

.1

.1

 1

.1

Jan.

A 9

.3

.3

.3

.2

.2

16

1,830

433

34

1Q

J79

560

.32

15

Jl

Jl

W

9.8

7.3

5.5

6.0

Feb.

5.2

4.0

3.2

2.9

2.3

2.0

1.7

1.4

1.4

1.3

1.2

1.2

1.0

1.0

1.0

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

Mar.

0.8

.8

.8

.8

.8

.9

1.3

3.6

4.4

3.7

2.9

4.8

5.8

3.7

2.1

1.5

1.2

1.2

1.0

1.0

25

96

21

8.2

5.5

32

14

6.5

3.7

3.4

3.8

Apr.

3.7

2.3

1.4

1.0

.9

.9

.9

.9

.8

1,120

728

51

28

20

16

12

9.8

7.1

6.0

3.6

1,080

2,500

231

46

30

23

20

16

15

13

May.

12

11

11

9.4

7.8

7.3

7.1

6.8

6.6

6.5

6.3

6.0

5.8

3.3

3.0

2.4

1.6

1.4

36

1,100

42

14

8.5

5.7

4.0

2.7

2.0

1.8

1.6

1.4

141

June

365

160

11

8.6

4.3

90

7.6

2.9

July

1.4

1.0

.8

.7

.7

.6

.6

268

118

9.4

 4.7

270

.2

Aug.

0.8

6.5

1.0

Sept.

0.1

.1

.2

NOTE. No flow on days for which discharge is not given. Discharge partly estimated July 10 and 27. 

JBraced figures jshojy #sj;imat$d _w$n discharge for periods indicated.
42 SURFACE WATER SUPPLY, 1926, PART VIII

Monthly discharge'of Mountain Creek near Grand Prairie, Tex., for the year ending

September SO, 1926

Month

October ___________________________

January ___________________________

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

July . . .-. - ..- ._ _ _-____.. _ 

September _________________________

Discharge in second-feet

Maximum

393 

1,390 

1,830 

5.2 

96 

2,500 

1,100

6.5

.2

2,500

Minimum

0.0 

.0 

.0 

.9

.8 

.8 

1.4

.0 

.0 

.0

.0

Mean

18.4 

71.3 

103 

1.52 

8.46 

200 

47.6 

50.5 

58.2 

.27 

.01

46.5

Run-off in 

acre-feet

1,130 

4,250 

6,310 

84.3 

520 

11,900 

2,930 

3,010 

3,580 

16.5 

.8

33,700

ELM FORK OF TRINITY RIVER NEAR DEWTON, TEX.

LOCATION. At Texas & Pacific Railway bridge 1 mile below mouth of Clear Creek 

and 6 miles northeast of Denton, Denton County.

DRAINAGE AREA. 1,100 square miles (measured on topographic maps and base 

map of Texas).

RECORDS AVAILABLE. November 20, 1923, to September 30, 1926.

GAGE. Chain gage attached to upstream side of bridge; read by Hughlon King.

DISCHARGE MEASUREMENTS. Made from highway bridge a quarter of a mile 

below gage, from railroad bridge, or by wading.

CHANNEL AND CONTROL. Channel straight for 50 feet above and 400 feet below 

gage. Bed of earth; permanent. Right bank not subject to overflow; left 

bank is overflowed for a quarter of a mile at a stage of 29 feet. Control follow stages is gravel riffle 600 feet below gage; permanent; high-stage control 

indefinite.

EXTREMES OP DISCHARGE. Maximum stage during the year, from graph drawn 

from gage readings, 27.5 feet at 6.10 a. m. June 1 (discharge, about 7,620 

second-feet; minimum stage, 0.60 foot October 3, December 24 and 28 

(discharge, 0.60 second-foot).

1924-1926: Maximum stage recorded, 29.05 feet at 9.05 a. m. March 20, 

1924 (discharge, 8,330 second-feet); no flow for several periods.

DIVERSIONS. Railroad diverts 100,000 gallons a day just above gage. No others 

of importance.

REGULATION. None.

ACCURACY. Stage-discharge relation changed April 21. Rating curve used from 

October 1 to April 21 well defined below 1,500 second-feet and poorly defined 

above; curve used from April 22 to September 30 fairly well defined from 10 

to 3,000 second-feet and extended above parallel with other curve. Gage 

read to hundredths twice daily. Daily discharge determined by applying 

mean daily gage height to rating table or, on days of considerable fluctuation 

in stage, by averaging discharge for intervals of a day, using gage-height 

graph based on daily gage readings, except as noted in footnote to table of 

daily discharge. Records poor.
TRINITY RIVER BASIN 43

Discharge measurements of Elm Fork of Trinity River near Denton, Tex., during the 

year ending September SO, 1926

Date

Oct. 8..... __ _

Dec. 11 __ .....

Gage 

height

Feet 

0.65

.68

Discharge

Sec.-ft. 

1.18

2.05

Date

Apr. 24 .

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

Gage

Feet 

16.73

1.11

Discharge

Sec.-ft. 

2,980

14.5

Date

JuIyS..........

Gage 

height

Feet 

11.82

Discharge

See.-ft. 

1,510

Daily discharge, in second-feet, of Elm Fork of Trinity River near Denton, Tex., for 

the year ending September SO, 1926

Day

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

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

3 ..__

4.-... __ ....

5... __ ......

6 .... ...

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

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

9. . ___ -.

10 

11.. .

12 

13 ..........

14 

15 

16 

17 __ ....

18 

19 

20 .......

21.. _ ........

22 

23 

24 ...

25 ....

26 

27- __

28 

29. .

30 

31 

Get.

1.0

.7

1.0

8.5

3.4

1.9

1 3

16

434

111

26

99

5 7

2.6

499

1 440

1J130

583

64

OQ

19

14

9

K

6.3

4 6

3.4

2.6

2 1

1 Q

1.8

1.7

Nov.

1.5

1.5

1.8

1.7

1.6

3.3

51

308

236

48

24

9.0

6.7

4.9

3.7

2.5

2.2

1.8

1.6

1.6

1.8

1.7

1.7

1.7

1.9

1.7

1.6

1.6

1.9

Dee.

2.1

1.7

1.5

1.3

1.1

1.1

1.1

1.1

1.1

1.2

1.1

1.9

2.9

4 0

2.8

1.7

1.3

1.1

1.0

.8

.6

1.0

1.0

.8

.7

.8

.8

Jan.

1.2

1.7

2.3

3.4

3.0

3.6

3.7

3.4

2

Q

2.4

1.9

1.7

1.7

1.7

1.6

6.0

749

639

260

2,030

1 640

718

119

61

51

48

48

125

90

69

Feb.

61

34

26

99

20

18

15

13

12

11

8.5

8.2

8.5

6.3

5.7

5 7

5.5

4.9

4.3

3.8

3.6

3.2

3.0

3.2

2.6

3.4

4.2

4.4

Mar.

3.7

3.1

3.0

3.1

3.2

3.4

3.4

4.3

5.7

fi Q

5.7

5.4

5.4

6.7

4.9

4.6

4.0

4.2

4.0

4.3

865

910

543

176

97

66

56

54

51

66

163

Apr.

118

97

72

AH

38

121

121

56

2,390

1,930

504

220

163

125

104

90

84

285

126

138

4,100

1,910

1,920

848

257

190

146

130

114

May

107

100

919

1,390

216

174

3,730

4,790

1,580

1,390

1,640

705

247

181

13&

114

100

179

4,060

1,850

261

146

114

87

75

63

58

53

48

46

2,680

June

6,970

2,490

478

535

208

114

100

877e

66

58

58

48

43

40

38

34

197

1,380

166

93

69

56

46

48

74

914

357

65

38

July

32

28

23

20

18

16

66

1,200

223

180

134

122

4,170

3,210

548

113

63

48

38

32

38

4,610

3,600

1,380

2,210

6,090

7,310

4,530

769

255

190

Aug.

154

130

107

93

81

75

69

60

56

53

48

46

40

38

36

34

737

4,110

2,050

333

160

114

157

1,550

508

154

114

87

236

1,040

199

Sept.

138

107

87

75

69

81

63

53

53

48

46

40

43

66

53

tn

34

30

27

25

23

22

19

16

14

12

12

13

13

25

NOTE. Owing to backwater from Garza Dam discharge partly estimated July 28, 29.

Monthly discharge of Elm Fork of Trinity River near Denton, Tex,, for the year

ending September SO, 1926

Month

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

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

August

September- _________________________

Discharge in second-feet

Maximum

1,440 

308 

4.0 

2,030 

61 

910 

4,100 

4,790 

6,970 

7,310 

4,110 

138

7,310

Minimum

0.7 

1.5 

.6 

1.2 

2.6 

3.0 

38 

46 

34 

16 

34 

12

.6

Mean

143 

24.8 

1.33 

220 

11.5 

101 

550 

879 

498 

1,340 

409 

44.9

Run-oft in 

acre-feet

8,820 

1,470 

81.9 

13,500 

637 

6,220 

32,700 

54,000 

29,600 

82,400 

25,100 

2,670

257,000

96272 30 4
44 SURFACE WATER SUPPLY, 1926, PART VIII

ELM FORK OF TRINITY RIVEE NEAR CARROUTON, TEX.

LOCATION. At Carrollton Dam, 40 feet below highway bridge on Dallas-Denton 

road, 1 mile below mouth of Denton Creek, and 1J^ miles west of Carrollton, 

Dallas County.

DRAINAGE ABE A. 2,540 square miles (measured on topographic maps and base 

map of Texas).

RECORDS AVAILABLE. November 1, 1923, to September 30, 1926.

GAGE. Vertical staff attached to left wing wall of dam and to second pile bent 

from left concrete pier of bridge; read by J. L. Coleman.

DISCHARGE MEASUREMENTS. Made from bridge, by wading, from boat, or from 

St. Louis Southwestern Railway Bridge 1 mile below.

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

Bed and banks are of loam and clean up to a stage of 5 feet, Left bank is 

subject to overflow at a stage of 8 feet. Control is a concrete dam up to a 

stage of about 8 feet; permanent. Valves pass water through dam at 

extremely low stages.

lExTREMES OP DISCHARGE. Maximum stage during year, from graph drawn 

from gage readings, 6.74 feet at 7 p. m. July 29 (discharge, 8,660 second-feet); 

no flow for several periods.

1924-1926: Maximum stage recorded, 12.75 feet during morning of Decem- 

'ber 14, 1923 (discharge not determined); no flow for several periods.

DIVERSIONS. None.

REGULATION. Low flow completely regulated and flow at high stages partly 

regulated by Garza Dam, 20 miles above.

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

below 19,000 second-feet. Gage read to hundredths twice daily. Daily 

discharges determined by applying mean daily gage height to rating table 

<or, on days of considerable fluctuation in stage, by averaging discharge for 

intervals of a day, using gage-height graph based on daily gage readings. 

'There was small leakage through valve in the dam when closed throughout 

.the year; amount not known but believed to be negligible. The valve was 

open October 8-31 and probably from December 23 to January 2. Discharge 

represents flow over dam only. Records fair.

^Discharge measurements of Elm Fork of Trinity River near CarroUton, Tex., during 

the year ending September 80, 1926

Date

 Oct. 8... ....

Apr. 22 .

Gage 

height

Feet 

-0.30

.08

4.57

Discharge

Sec.-ft. 

0.00

.00

4,740

( Date

July 7. ...

JulyS 

July 24.. ...

Gage 

height

Feet 

0.38

3.84

5.70

Discharge

Sec.-ft. 

38.1

3,070

6,150

Date

July 26.. .......

Gage 

height

Feet 

4.96

Discharge

Sec.-ft.

4,410
TRINITY RIVER BASIN 45

Daily discharge, in second-feet, of Elm Fork of Trinity River near Carrollton, Tex,, 

for the year ending September SO, 1926

Day

1. ____

2 ......

3 

4.........

5 

6. 

7 ....

8 

9 _

10 

11 

12 

13 

14.........

15. 

16. 

17 

18 

.19 

20 

21. .....

22 

23 

24.........

25 .

26 ....

27 _ .. ...

28 

29 

30 

31 

Oct.

14

14

12

4.8

3.2

.0

.0

.0

.0

.0

.0

25

36

41

187

3,170

K 1QA

4,080

1,590

260

120

84

62

AQ

dft

QQ

33

00

1Q

17

16

Nov.

12

12

12

12

12

12

279

418

704

391

OCfl

149

99

81

55

46

41

33

25

20

20

Oft

19

1Q

12

10

8.8

8.8

8.8

Dec.

8 8

7.4

6.0

5 4

3.0

1.8

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

Jan.

0.0

23

41

30

30

25

13

6.2

.0

.0

.0

.0

.0

.0

.0

3.8

1,410

671

539

476

803

1,820

1,070

7QQ

671

572

572

COQ

506

506

383

Feb.

238'70

23

20

20

17

17

17

17

16

14

14

14

14

14

13

12

13

12

10

7.4

3.6

3.6

2.4

2 4

2.4

2.4

9 A.

Mar.

2.4

1.8

1.2

1.2

1.2

11

14

6.0

 6.0

8.8

12

12

12

12

12

12

8.8

8.8

8.8

8.8

m

4,210

2,540

9 Plflfi

2,500

1,180

884

476

340

335

335

Apr.

324

268

236

236

236

94

46

81

77

1,120

2,020

2,250

1,690

661

388

273

287

259

241

997

1,180

3,610

2,630

2,250

2,130

1,910

1,800

1,690

1,250

884

May

774

605

572

884

1,160

1,070

958

1,940

4,080

3,760

3,180

2,250

1,580

1,250

1,160

1,160

1,070

1,070

2,480

5,190

4,420

3,280

1,230

264

161

135

117

O1

71

71

782

June

5,390

6,850

7,350

6,410

3,430

498

259

199

157

135

109

95

84

77

68

55

49

49

1,240

2,000

1,580

1,020

282

153

124

547

1,010

1 540

487

293

July

186

113

81

65

46

43

43

2,020

1,760

506

1,790

901

1,420

5,790

7,100

4,290

433

190

142

106

95

1,030

5,090

6,190

5,390

4,080

6,930

8,380

8,660

7,850

5,900

Aug.

1,820

308

231

195

161

145

124

113

95

77

77

77

46

46

46

46

52

1,360

4,230

4,330

1,420

538

264

856

1,800

578

388

293

511

920

1,170

Sept.

539

388

313

148

120

2,920

1,720

222

127

95

77

77

77

77

109

81

77

77

71

55

46

46

46

43

41

33

30

30

30

30

Monthly discharge of Elm Fork of Trinity River near CarrolUon, Tex., for the year 

ending September 30, 1926

Month

October __ __ ____ ________________

December __________________________

February _________________________

April.. 

May. ___________________________

July. __ . 

Discharge in second-feet

Maximum

5,190 

704 

8.8 

1,820 

238 

4,210 

3,610 

5,190 

7,350 

8,660 

4,330 

2,920

8,660

Minimum

0.0

8.8 

.0 

.0 

2.4 

1.2 

46 

71 

49 

43 

46 

30

.0

Mean

488 

93.2 

1.05 

369 

21.8 

522 

1,010 

1,510 

1,380 

2,790 

720 

255

771

Run-off in

acre-feet

30,000 

5,540 

64.3 

22,700 

1,210 

32,100 

60,200 

92,900 

82,400 

172,000 

44,300 

15,200

559,000

ELM FORK OF TRINITY RIVER NEAR DALLAS, TEX.

LOCATION. At city of Dallas pumping plant and dam (known as Record Crossing 

plant), 2,800 feet above Rock Island Lines railroad bridge, 1.2 miles above 

confluence with West Fork, and 5 miles northwest of Dallas, Dallas County.

DRAINAGE AREA. 2,660 square miles (measured on topographic maps and base 

map of Texas).

RECORDS AVAILABLE. October 17, 1920, to September 30, 1926.

GAGE. Vertical staff attached to pump house; read by W. J. Selby.

DISCHARGE MEASUREMENTS. Made from Record Crossing highway bridge, 200 

feet below gage, from railroad bridge half a mile below, or by wading.
46 SURFACE WATER SUPPLY, 1926, PART VIII

CHANNEL AND CONTROL. Bed composed of sand and gravel; shifting. Control 

is concrete dam; permanent. Banks wooded and subject to overflow.

EXTREMES OP DISCHARGE. Maximum stage recorded during year, 14.15 feet at 

8 a. m. July 31 (discharge, about 9,670 second-feet); no flow during several 

periods.

1920-1926: Maximum stage recorded, 20.20 feet at 10 a. m. April 27, 1922 

(discharge not determined owing to backwater from Trinity River); no flow 

during several periods.

DIVERSIONS. -No diversions except for municipal use; the largest is at the Record 

Crossing plant. The sum of all the diversions is believed to be but a small 

percentage of the total run-off during years of ordinary flow.

REGULATION. Flow partly regulated by city of Dallas reservoir at Carrollton 

and Garza Dam above Carrollton.

ACCURACY. Stage-discharge relation permanent except during periods of backwater. Rating curve well defined below 1,100 second-feet and poorly 

defined above. Gage read to hundredths twice daily and oftener during 

floods. Daily discharge determined by applying mean daily gage height to 

rating table or, on days of considerable fluctuation in stage, by averaging 

discharge for intervals of a day, using gage-height graph based on daily 

gage readings, except as noted in footnote to table of daily discharge. Records 

for low stages good; for intermediate and high stages poor.

The following discharge measurement was made:

April 22: Gage height, 13.10 feet; discharge, 4,540 second-feet (stage-discharge 

relation affected by backwater from West Fork of Trinity River).

Daily discharge, in second-feet, of Elm Fork of Trinity River near Dallas, Tex., for 

the year ending September 30, 1926

Day

1

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

3 

^. ............ 

5 ... .

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

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

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

9. 

10-...-.-.......-.

11 

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

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

14. ... ....

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

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

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

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

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

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

21..... _ ..... ...

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

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

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

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

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

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

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

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

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

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

Oct.

1,040

4,500

4,420

2,290

485

156

88

70

52

32

29

21

17

10

10

4.4

Nov.

2.0

.3

.1

.0

.0

1.0

29

349

550

446

192

152

99

82

42

34

25

14

10

6.1

4.4

2.0

Jan.

648

602

510

450

1,950

1,370

855

705

602

570

510

480

450

422

Feb.

120

29

10

12

8.3

6.1

6.1

4.4

3.2

2.0

1.4

.3

.8

.3

.1

.3

.1

Mar.

69

3,360

3,990

! 1,660

835

01 K

315

290

Apr.

254

222

222

200

168

39

29

29

61

1,210

2,290

2,050

1,810

970

406

330

290

245

245

200

1,510

}s, 100

2,380

1,810

1,970

1,730

1,730

1,650

1,170

May

780

670

570

670

1,250

1,170

1,090

1,530

3,220

3,310

2,630

2,460

1,650

1,330

1,250

1,170

1,170

1,170

1,170

4,460

5,440

3,400

2,520

441

192

140

102

88

64

52

179

June

2,680

4,670

.5,520

6,500

6,530

1,440

290

192

160

140

120

102

85

73

61

34

21

384

1,970

1,570

1,730

464

152

124

414

650

1,650

330

July

222

120

76

45

34

23

12

}l,750

670

1,810

1,490

818

3,310

5,100

6,320

2,430

422

160

70

378

2,800

4,670

5,350

4,840

4,500

5,680

7,350

8,880

9,530

Aug.

7 060

997

268

180

102

61

42

25

10

10

9.4

7.2

3.8

2.0

2.0

1.4

2.0

614

2,800

4,160

2,820

742

340

615

1,650

950

406

340

705

464

1,570

Sept.

670

510

268

152

120

1,720

ll,000

11$

102

7»

50*

25

85

7»

42

14

10

5.0

4.4

3.2 2.0-

1.4

.8

.$

.a

2.0

3.2:

2.0>

NOTE. No flow on days for which discharge is not shown. Braced figures show estimated mean dis,- 

eharge.for periods when stage-discharge relation wa& affected by backwater from West Fork of Trinity 

River.
TRINITY JRIVBE BASIN 47

Monthly discharge of Elm Fork of Trinity River near Dallas, Tex., for the year 

ending September SO, 1926

Month

October.. __________________________

July

The year _________________________

Discharge in second-feet

Maximum

4,500 

550 

1,950 

290 

3,990

5,440 

6,530 

9,530 

7,060

9,530

Minimum

0.0 

.0 

.0 

.0 

.0 

29 

52 

21 

12 

1.4 

.3

.0

Mean

427 

68.0 

358 

17.7 

535 

1,050 

1,460 

1,300 

2,600 

870 

235

750

Kun-offin 

acre-feet

26,200 

4,050 

22,000 

981 

32,900 

62,300 

89,900 

77,100 

160,000 

53,500 

14,000

543,000

DENTON CREEK NEAR ROANOKE, TEX.

LOCATION. At highway bridge on Fort Worth-Denton highway, 3 miles north 

of Roanoke, Denton County, 13 miles south of Denton, and 15 miles above 

confluence of Denton Creek with Elm Fork of Trinity River.

DRAINAGE AREA. 704 square miles (measured on topographic maps and base 

map of Texas).

RECORDS AVAILABLE. October 12, 1923, to September 30, 1926.

 GAGE. Chain gage attached to downstream truss of bridge; read by G. W. 

Patterson.

DISCHARGE MEASTUIEMENTS. Made from highway bridge or by wading.

CHANNEL AND CONTROL. Bed composed of rock and gravel; fairly permanent. 

Channel straight for 150 feet above and below gage. One channel at all 

stages. Right bank is subject to overflow at extremely high stages. Left 

bank is wooded for 50 feet and is covered with tall grass and weeds beyond 

this; is overflowed at a stage of 24 feet. Low-water control is a rock and 

gravel bar, 75 feet below gage; shifts. High-stage control indefinite.

EXTREMES OF DISCHARGE. Maximum stage during year, from graph drawn from 

gage readings, 18.1 feet at 3 p. m. March 21 (discharge, 11,100 second-feet; 

determined from extension of rating curve and may be subject to error); no 

flow several periods..

1923-1926: Maximum stage recorded, 20.65 l feet at 8.30 p. m. December 12, 

1923 (discharge, 14,300 second-feet; determined from extension of rating 

curve' and may be subject to considerable error); no flow for several periods.

The highest known flood occurred in April, 1922, when a stage of about 

26.00 feet was reached; discharge not determined.

DIVERSIONS. None.

REGULATION. None.

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

defined below 3,440 second-feet and extended above on basis of area and 

velocity curves. Gage read twice daily to hundredths. Daily discharge 

ascertained by applying mean daily gage heights to rating table or, on days 

of considerable fluctuation in stage, by averaging discharge for intervals of 

a day, using gage-height graph based on daily gage readings. Records poor.

The following discharge measurements were made:

December 9, 1925: Gage height, 0.62 foot; discharge estimated 0.02 second-foot.

April 24, 1926: Gage height, 5.38 feet; discharge, 853 second-feet.

' Maximum stage supersedes that published in Water-Supply Paper 588.
48 SURFACE WATEB SUPPLY, 1926, PART VIII

Daily discharge, in second-feet, of Denton Creek near Roanoke, Tex., for the high* 

water periods in years ending September SO, 19%4 and 1925

Date

1924 

Nov. IS....--.-... _ .

Nov. 16 .... -. 

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

Dec. 13 .......... ...

Dec. 14........ __ ....

Dec. 15-. -.. ..-.

Mar. 15........ 

Discharge

2,500

2,280

5,910

6,890

3,440

1,900

1,030

Date

1924

TWar 1Q

Mar. 20 

Mar. 21...............

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

Apr. 26-. 

Discharge

2,900

1,050

3,180

3,760

1,340

1,420

1,130

Date

1924 

Apr. 27...... ......... .

May 26... 

1925

Discharge

94?

1,270

2,380-

4,530

NOTE. Records for the above periods not previously published because of lack of definitions of ratingcurve for high stages.

Daily discharge, in second-feet, of Denton Creek near Roanoke, Tex., for the yearending September SO, 1926

Day

1... _ .

2 

3 

4 

6 

6 

7. .

8 

0 

10 

11 

12 

13 

14. 

15 

16 

ITIS 

19 

20 

21 

22 

23 

24 

25 

26 

27... _ -

28 

29 

30 

31. _ 

Oct.

0.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.6

928

126

62

14

2.1

1.0

.6

.6

.0

.0

.0

.0

.0

.0

.0

.0

Nov.

0.0

.0

.0

.0

.0

1.2

62

9.6

9.0

3.8

2.4

2.1

1.8

1.3

.8

.7

.7

.6

.6

.6

.0

.0

.0

.0

.0

.6

.0

.0

.0

.0

Dec.

0.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

Jan.

0.0

.6

.6

.6

.6

.0

.0

.0

.0

.0

.0

.0

.6

153

48

10

6.2

909

358

55

77

38

20

15

10

7.6

6.2

Feb.

4.5

3.6

2.4

1.8

1 9

1.8

1.8

1.4

1.4

1.1

1.4

1.4

1.1

.8

1.1

1.1

1.1

1.1

1.1

1.1

.8

1.1

1.4

1.1

1.0

n Q

Mar.

0.8

1.1

1.6

1.6

1.6

1 ^

1.1

1 ^l

2.4

2.9

2.9

9 Q

9 Q

2.9

2

n

2.2

1 Q

1 ft

2.1

1 Q

995

170

Q9

62

39

26

20

20

18

Apr.

17

14

11

9.4

8.0

7.0

58

91

11

289

429

682

268

118

64

38

26

20

16

11

460

593

906

751

QAA

222

108

fit)

49

33

May

26

22

18

15

12

14

132

832

2,160

929

634

188

97

57

33

25

20

15

14

19

12

9.8

8.0

6.4

5.3

4.5

4.0

3.3

104

14

June

466

1,050

288

105

51

28

17

12

8.7

7. a

5.3

4.0

2.6

9 9

1.3

.7

280

832

1,230

1,220

200

76

36

82

135

207

73

179

130

July

56

25

13

8.3

5.6

4.0

15

732

102

21

16

12

199

86

82

108

57

28

12

5.0

2.3

6.4

443

119

17

52

992

1,040

1,280

330

101

Aug.

41

22

14

9.0

6.4

5.3

4.0

3.3

1.0

.4

.4

.6

.4

.1

.1

151

517

656

406

120

66

22

15

164

111

69

. 29

183

292

Sept.

294

105

36

16

0.8-

476

55

5.3.

2.6

1.9

1.3

.&

.8

35

7.2.

1.1

.r

.6

.4

.4

.*

.2

.1

.1

.0

.0

.0

.a

.0

.0
TRINITY RIVER BASIN

Monthly discharge of Denton Creek near Roanoke, Tex., for the years ending 

September 80, 1924-1926

Month

1023-24 

October 12-31-.--. __ . ___ ___ ___ _ _ . ____ . ___ .

April..-.. __ __ ___ ...... _._-___ __ _ _

July ...- .................... ._ _ . 

August _ T _ . __ . ........................

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

1024-25

February. _______________________ ....

March. __ ________________________

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

July .. . .-. .. .

1025-26

April. .-- . . 

July.. .. ..._ 

The year ______________________ ..

Discharge in second-feet

Maximum

730 

2,500 

6,890 

82 

82 

3,760 

1,420 

1,270 

203 

82 

76 

.7

.0 

16 

.3 

4.2 

3.8 

2.2 

1,060 

4,530 

23 

24 

64 

.0

4,530

028 

62 

0 

009 

4.5 

4,040 

006 

2,160 

1,230 

1,280 

656 

476

4,040

Minimum

«

0.0 

4.5 

24 

33 

25 

17 

38 

21 

.1 

.0 

.0 

.0

.0 

.0 

.1 

.2 

1.3 

1.4 

.1 

.6 

.0 

.0 

.0 

.0

.0

.0 

.0 

.0 

.0 

.8 

.8 

7.0 

3.3 

.7 

2.3 

.1 

.0

.0

Mean

106 

212 

713 

54.5 

40.0 

604 

218 

110 

22.5 

3.03 

3.13 

.03

.00 

1.05 

.10 

.76 

2.04 

1.02 

118 

287 

1.67 

1.28 

2.33 

.00

35.2

36.6 

3.26 

.00 

55.5 

1.48 

188 

205 

177 

265 

10.3 

03.0 

35.0

105

Run-off in

acre-feet

7,790 

12,600 

43,000 

3,350 

2,300 

37,200 

13,000 

7,330 

1,340 

242 

192 2.0-

129,000

.0 

116 

11.0 

46.6 

113 

118 

7,050 

17,700 

00.6 

78.9 

143 

.0

25,500

2,250 

194

.a

3,410

82.1 

11,600 

12,200 

10,000 

15,800 

11,800 

5,770 

2,080

76,100

EAST FORE OF TRINITY RIVER NEAR ROCEWALI, TEX.

LOCATION. At bridge on State highway No. 1, between Dallas and Rockwall, 

3 miles southwest of Rockwall, Rockwall County, and 7 miles below mouth of 

Pilot Creek.

DRAINAGE ABE A. 831 square miles (measured on topographic maps, base map 

of Texas, and United States Army progressive military map).

RECORDS AVAILABLE. November 9, 1923, to September 30, 1926.

GAGE. Chain gage attached to downstream side of bridge; read by J. T. Collum.

DISCHARGE MEASUREMENTS. Made from bridge or by wading.

CHANNEL AND CONTROL. Channel curving at, above, and below bridge. Bed 

of earth and fairly permanent. Right bank of earth, covered with weeds 

and grass, and not subject to overflow; left bank of earth, covered with weeds 

and grass, and at a gage height of about 12 feet is subject to overflow for 

1,000 feet to levee. One channel at all stages. Control indefinite but fairly 

permanent.
SURFACE WATER StTPPLt, 1926, PART VIII

EXTREMES OF DISCHARGE. Maximum stage, from graph drawn from gage readings during year, 18.98 feet at 3 to 4 p. m. July 14 (discharge, 23,000 secondfeet) ; no flow during several periods.

1924-1926. Maximum stage, that of July 14, 1926; no flow for several 

periods.

DIVERSIONS. None.

REGULATION. None. .

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

defined for all stages. Gage read to hundredths twice daily. Daily discharge 

ascertained by applying mean gage height to rating table or, on days of 

considerable fluctuation in stage, by averaging discharge for intervals of a 

day, using gage-height graph based on daily gage readings. Records fait.

The following discharge measurements were made:

November 16, 1925: Gage height, 0.65 foot; discharge, 1.79 second-feet. 

April 23, 1926: Gage height, 13.93 feet; discharge, 4,010 second-feet. 

July 14, 1926: Gage height, 18.94 feet; discharge, 22,700 second-feet.

Daily discharge, in second-feet, of East Fork of Trinity River near Rockwall, Tex., 

for the year ending September 30, 1926

Day

1. ___ .. _ .

2 ________

3.... _ . __ .

4.... _ . __ .

5 _ . _ .. _ .

6 _ . _ . __ .

7 _ . ___ ...

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

9 _ ....

10 

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

12 

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

14- _

15 

16. ____ 

17 

18 

19 _ . ____ 

20 

21 _

22 

23 ______ . 

24. __ 

25 _ . __ .

26.. _ . _ .

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

28 __ 

29 

30 ......

31. __ . _ .

Oct.

0.0

.0

.0

.0

.0

.0

.0

.0.

.0

.0

.0

.0

.0

.0

.0

19

158

324

66

19

8.0

A 9

2.4

1.7

1 9

.9

.7

.6

.5

.5

.5

Nov.

05

5.

6.8

36

40

126

61

21

11

5.2

2.8

1.8

1.4

1.0

1.0

.8

.6

.4

.4

.4

.3

.3

.3

Dec.

0 o

.2

.1

.1

.1

.1

.1

.1

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

Jan.

0.0

.0

.3

.1

.0

.0

.0

.0

.0

.0

.0

.1

273

342

456

180

181

506

607

270

50

37

34

31

on

29

24

Feb.

91

20

16

14

13

10

Q fl

10

9 7

8.8

7.6

7.4

7.4

7.4

7.1

5.9

5.4

10

11

7.4

6.8

K Q

4.9

4 7

5.3

Mar.

7.0

5.6

4.4

3.7

4.4

3.8

A 9

7.1

8.9

11

9.2

9.5

16

19

10

8.0

6.4

5.3

4.9

605

2,000

1,680

738

189

90

52

43

41

58

Apr.

45

48

34

26

25

23

22

23

26

112

820

i Eton

351

ion

117

90

81

70

1,060

4,220

3,800

3,620

378

189

153

126

112

May

99

90

162

706

1,120

396

324

629

1,370

2,000

2,400

2,560

988

261

216

171

144

1,460

1,780

2,560

1,250

207

135

99

73

64

58

52

45

601

June

6,250

10,800

6,960

3,030

596

306

198

135

108

81

67

64

52

48

41

32

32

29

28

28

436

930

546

112

688

855

930

960

234

July

58

43

36

28

24

24

25

1,200

6,300

9,180

5,440

4,920

6,960

16,600

6,210

1,330

288

216

171

144

144

466

1,370

2,730

4,000

4,000

5,170

5,720

1,700

378

Aug.

270

216

180

144

126

108

90

77

67

61

55

48

43

39

36

32

32

218

953

1,510

585

126

81

117

144

86

52

43

41

41

37

Septj

32

29

28

25

24

80

674

387

61

37

31

28

26

24

22

21

20

18

16

14

13

12

11

10

9.5

8.3

8.3

8.3

9.0

11
SAN JACINTO BIVEE BASIN 51

Monthly discharge of East Fork of Trinity River near Rockwall, Tex., for the year 

ending September SO, 1926

Month

NV»vflmher

March _____________________ __ .....

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

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

August __ _____________________ _ .

The year _______________________

Discharge in second-feet

Maximum

324 

126 

.2 

607 

21 

2,000 

4,220 

2,560 

10,800 

16,600 

1,510 

674

16,600

Minimum

0.0 

.3 

.0 

.0 

4.7 

3.6 

22 

45 

28 

24 

32 

8.3

.0

Mean

19.6 

10.8 

.07 

98.4 

10.2 

183 

682 

793 

1,150 

3,220 

183 

56.6

539

Run-off in 

acre-feet

1,200 

640 

4.4 

6,050 

569 

11, 300 

40,600 

48,800 

63,700 

198,000 

11,200 

3,370

390,000

SAN JACINTO RIVER BASIN

SAN JACINTO RIVER NEAR CONEOE, TEX.

LOCATION. At International-Great Northern Railroad bridge 150 feet below 

highway bridge, 3 miles below mouth of Lake Creek, and 4 miles south of 

Conroe, Montgomery County.

DBAINAGE AREA. 832 square miles (measured on base map of Texas).

RECORDS AVAILABLE. May 7, 1924, to September 30, 1926.

GAGE. Staff gage attached to piling at eleventh bent from left abutment on 

downstream side of railroad bridge; read by G. W. Crafton. Zero of gage 

is base of rail.

DISCHARGE MEASUREMENTS. Made from railroad bridge or by wading.

CHANNEL AND CONTROL. Bed of sand. One channel for low and medium stages 

and three for high stages. Channel straight for 150 feet above and 300 feet 

below gage. Banks covered with brush and trees and subject to overflow. 

Control formed by riprap near bridge and by sand of bed of stream; shifts.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 1.00 foot at 

5 p. m. April 22 (discharge not determined); minimum stage, 23.50 feet 

October 1, 8-10 (discharge, 16 second-feet).

1924-1926: Maximum stage recorded, that of April 22, 1926; minimum 

stage, 23.70 feet August 17,19, 21, and 22,1925 (discharge, 11 second-feet).

DIVERSIONS. None.

REGULATION. None.

ACCURACY. Stage-discharge relation changed October 19. Rating curves fairly 

well defined below 24,000 second-feet but do not cover range of stage for the 

year. Gage read to tenths once daily. Daily discharge determined by 

applying mean daily gage height to rating table or, on days of considerable 

fluctuation in stage, by averaging discharge for intervals of a day, using 

gage-height graph based on once-daily gage readings, except as noted in 

footnote to table of daily discharge. Records poor.

Discharge measurements of San Jatinto River near Conroe, Tex., during the year 

ending September SO, 1926

Date

Nov. 6. ___ ...

Nov. 7 _ . __ ..

Nov. 9 ..........

Gage 

height

Feet

-7.31

-9.14

Discharge

Sec.-ft. 

21 100

23,300

14,000

Date

Nov. 10 . 

Nov. 11. ........

Jan. 12 .. .

Gage 

height

Feet -10. 10

-11.39

-20.32

Discharge

Sec.-ft. 

5,270

2,880

299

Date

Aug. 3. _ . .....

Sept. 28 ........

Gage 

height

Feet 

-20.75

-22.44

-23.52

Discharge

Sec.-ft. 

247

114

36.3
52 SURFACE WATER SUPPLY, 1926, PART VIII

Daily discharge, in second-feet, of San Jacinto River near Conroe, Tex., for the 

year ending September 80, 1926

Day

2 ..........

3..........

4..... _ ..

5. __ . _ .

6 ___ .....

7... _ ....

8 ___ ....

9.... __ ..

10 .......

11 __ . _ .

12 ___ . _ .

13.. ...... ..

14..........

15 __ . _ ..

16 ..........

17 ..........

18... .......

10

20 

21 _ .... ...

22 ___ . ...

23 

24 _____ .

25. ____ .

26. ____ ..

27 ..........

28 _____ .

29..........

30 _____ .

31..........

Oct.

16

18

20

20

20

20

18

16

16

16

24

32

105

1,110

3,160

6,300

7,500

8,700

4,230

1 Qfifl

732

307

247

287

397

1,050

2,390

2,370

2,290

1,880

Nov.

6,670

8,000

3,390

2,830

7,020

21,400

22,800

18,200

11,100

5,570

2,920

2,380

1,840

1,320

1 080

925

753

598

533

565

565

500

435

397

350

328

287

247

238

229

Dec.

220

211

202

194

194

190

186

186

178

178

178

178

182

202

339

361

373

350

339

328

307

297

277

238

202

234

267

247

229

211

Jan.

328

2,380

7,160

11, 100

10,500

4,400

2,410

1,840

533

453

373

297

267

267

247

229

356

1,630

2,760

4,080

1,700

1,170

825

789

753

598

565

502

409

361

373

Feb.

385

373

350

297

247

238

229

229

211

211

194

194

178

178

178

178

194

287

277

220

194

186

178

162

162

162

154

146

Mar.

146

146

138

146

162

287

317

361

850

1,910

2,230

4,600

8,700

4,400

1,910

339

448

598

524

3,770

5,010

2,580

1,770

1,520

1,380

2,130

2,050

2,020

2,110

17,100

Apr.

11, 700

8,100

2,570

2,330

2,050

1,700

556

280

825

1,630

1,700

1,660

1,630

1,600

950

448

307

287

229

229

9,460

3,300

2,520

956

267

146

May

. 146

229

307

549

1,930

10,500

6,410

3,690

3,200

2,620

1,780

540

397

328

229

229

186

194

211

211

211

211

178

162

146

146

146

138

138

138

146

June

106

69

76

76

71

72

72

72

72

72

76

SO

80

170

229

229

247

257

247

238

July

170

162

90

69

69

66

146

S3

SO

76

72

69

69

69

69

69

69

69

69

69

69

69

69

218

361

317

220

114

98

83

72

Aug.

114

114

106

106

102

98

98

83

76

69

69

69

69

69

66

66

62

62

62

58

58

58

55

55

55

55

55

55

178

211

186

Sept.

162

146

114

83

76

72

69

69

69

55

37

36

31

29

27

27

27

27

27

27

27

27

27

27

27

27

34

35

35

35

NOTE. Discharge interpolated on the following days: Oct. 4,11, Nov. 22, 29, Dec. 6,13, 20,27, Jan. 10, 

24, and 31. Mean daily gage height for days when stage was beyond limits of rating curve as follows: Apr. 22, 

 3.75 feet; Apr. 23, 4.47 feet. Braced figure shows estimated mean discharge for period indicated.

Monthly discharge of San Jacinto River near Conroe, Tex., for the year ending

September 80, 1926

Discharge in second-feet

Octobsr

April...... _____ ... _____________ ... __ ..

July....... . . ..-.__..-.. . .- 

Maximum

8,700

22,800

373

385

17,100

10,500

257

361

211

162

Minimum

16

229

178

229

146

138

146

138

66

55

27

Mean

1,470

4,120

241

1,920

221

2,270

1,150

122

109

85.1

50.4

Run-off in

acre-feet

On 4JYI

245,000

14,800

118,000

12,300

139,000

70,700

7,280

6,730

5,230

3,000

BRAZOS RIVER BASIN

DOUBLE MOUNTAIN FORE OF BRAZOS RIVER NEAR ASPERMONT, TEX.

LOCATION. At bridge on Aspermont-Hamlin highway in southeast corner of 

sec. 134, Texas & Pacific Railway Co.'s block U, 8 miles below mouth of 

Mountain Creek and 11 miles south of Aspermont, Stonewall County.
BKAZOS RIVER BASIN 53

DRAINAGE AREA. 7,980 square miles, a large part of which is probably noncontributing (measured on topographic maps and base map of Texas).

RECORDS AVAILABLE. December 3, 1923, to September 30, 1926.

GAGE. Chain gage attached to downstream side of bridge; read by I. E. Smith.

DISCHARGE MEASUREMENTS. Made from bridge or by wading.

 CHANNEL AND CONTROL. Channel straight for 500 feet above and half a mile 

below gage. Bed of sand; shifts. Banks of clay, shifting, and not subject 

to overflow. Control indefinite; shifts.

EXTREMES OP DISCHARGE. Maximum stage recorded during year, 15 feet at 

10 p. m. August 22 (discharge, about 33,200 second-feet); probable no flow 

some time in January and April.

1924r-1926: Maximum stage recorded, that of August 22, 1926; no flow 

for several periods.

DIVERSIONS. None.

REGULATION. None

ACCURACY. Stage-discharge relation not permanent. Rating curve poorly 

defined for all stages. Gage read to hundredths twice daily, but at extremely 

low stages water was not under gage. Daily discharge determined by shiftingcontrol method or, on days of considerable fluctuation in stage, by averaging 

discharge for intervals of a day, using gage-height graph based on daily 

gage readings, except as noted in footnote to table of monthly discharge. 

Daily discharge not sufficiently accurate for publication. Monthly records 

fair.

Discharge measurements of Double Mountain Fork of Brazos River near Aspermont, 

Tex., during the year ending September 80, 19&6

Date

Oct. 19...-. _

Nov. 20-... 

Feb. 9.-. ...

Gage 

height

Feel 

2.00

.92

.60

Discharge

Sec.-ft. 

142

1.89 -.3

Date

Apr. 2. __ - ...

Gage 

height

Feet 

0.83

1.04

1.37

Discharge

Sec.-ft. 

0.5

11.0

19.9

Date

Sept. 17... .. 

Gage 

height

Feet 

1.60

Discharge

Sec.-ft. 

33.4

1 Estimated.

Monthly discharge of Double Mountain Fork of Brazos River near Aspermont, 

Tex., for the year ending September SO, 1986

Month

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

November. ________ . ________________

February... ________________________

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

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

Discharge in second-feet

Maximum

862 

433

1.5

354 

2,700 

1,590 

3,320 

3,040 

10,200

2,700

10,200

Minimum

7.8 

1.3

.1 

.6 

2.0 

.9

17

Mean

96.0 

33.2

.74 

.49 

.45 

14.9 

247 

135 

247 

284 

907 

432

201

Run-ofl in 

acre-feet

5,910 

1,980 

45.2 

30.0 

25.2 

916 

14,700 

8,320 

14,700 

17,400 

55,800 

25,700

146,000

NOTE. Discharge estimated Dec. 14-31, Jan. 1-27, Feb. 2-9,14-28, Mar. 1-20, and Aug. 12-16.
54 SURFACE WATER SUPPLY, 1926, PART VIII

BRAZOS RIVER AT SEYMOUR, TEX.

LOCATION. At bridge on Wichita Valley Highway three-fourths mile above 

Wichita Valley Railway Co.'s bridge, 1 mile southwest of courthouse in 

Seymour, Baylor County, and \% miles above mouth of Seymour Creek.

DRAINAGE AREA. 14,500 square miles, a large part of which is probably noncontributing (measured on topographic maps and base map of Texas).

RECORDS AVAILABLE. November 30, 1923, to September 30, 1926.

GAGE. Chain gage attached to downstream side of bridge; read by B. FBowman, jr.

DISCHARGE MEASUREMENTS. Made from bridge or by wading.

CHANNEL AND CONTROL. Channel straight for quarter of a mile above and below 

gage. Bed of sand; shifts. Banks of sand and covered with brush; shift; 

not subject to overflow. Control is sand bed of stream; shifts.

EXTREMES OF DISCHARGE. Maximum stage recorded during the year, 13.77

feet at 6 p. m. August 29 (discharge, 43,400 second-feet; determined by

slope method and may be subject to error); no flow for several periods.

1924-1926: Maximum stage, that of September 29, 1926; no flow for

several periods.

DIVERSIONS. None.

REGULATION. None.

ACCURACY. Stage-discharge relation changed August 23. Rating curves fairly 

well defined for all stages. Gage read to hundredths twice daily. Daily 

discharge determined by shifting-control method or, on days of considerablefluctuation in stage, by averaging discharge for intervals of a day, using gageheight graph based on daily gage readings, except as noted in footnote to 

table of daily discharge. Records poor.

Discharge measurements of Brazos River at Seymour, Tex., during the year ending

September SO, 1926

Date

Oct. 22... ...

Nov. 21.... 

Feb. 10 ,

Mar. 31.. ....

Gage 

height

Feet

2.28

1.29

1.01

1.96

3.15

Discharge

Sec.-ft. 

227

18.0

.28

60

866

Date

Aug. 31.. _ . _

Sept. !._ __

Do..... ....

Gage 

height

Feet 

2.60

13.77

4.44

4.05

3.62

Discharge

Sec.-ft. 

296

"43,400

5,300

3,830

9 Qfifl

Date

Do ......

Sept. 16. .......

Gage 

height

Feet 

3.29

2.99

2.60

2.10

Discharge

Sec.-ft. 

1,790

1,510

1,140

357

« Determined by slope method, using Kutter's formula.

Daily discharge, in second-feet, of Brazos River at Seymour, Tex., for the year endingSeptember SO, 1926

Day

1 ...

2.. ....

3 

4 ......

5- _ .

6 .

7 

8 

8 

10 

Oct.

518

383

239

154

101

78

59

30

8.0

5.2

Nov.

6.0

3.2

2.2

.6

2.6

275

262

Dec.

23

14

7.fi

3.6

1.4

15

as

6.0

4.0

3.2

Jan.

4.4

3.4

2.8

3.4

2 4

3.2

4 4

6.0

11

6.8

Feb.

2.4

2.0

.8

.8

1.8

1.0

1.2

.6

.2

Mar. Apr.

I 30

476

May

34

23

13

6.8

24

68

120

193

61

104

June

38

26

18

938

2,050

1,180

540

300

314

249

July

7.2

1.2

98

36

Aug.

281

588

634

480

314

213

126

94

64

38

Sept.

3,790

1,570

971

455

3,070

2,430

1,840

1,290

860

534
BRAZOS RIVER BASIN

Daily discharge, in second-feet, of Brazos River at Seymour, Tex., for the year 

ending September 30, 1926 Continued

Day

11 

12 

13 

14 

15 

16 

17 __ .

ISIS 

20 

21......

22 

23. _ ..

24......

25 

26.... ..

27 .

28 

29 .

30. 

31 

Oct.

074

742

576

1,062

998

820

576

414

300

228

184

171

112

94

74

55

39

30

22

15

9

K

Nov.

158

104

70

171

126

118

76

50

35

21

29

44

64

57

23

14

25

22

30

Dec.

9 9

6.0

3.8

2.6

9 fi

3.8

3.6

3.8

2.8

3 9

3.8

3.8

3.4

2.8

3.4

2.2

1,8

2.2

2.2

3.0

6.0

Jan.

6.8

5.6

4 4

5.2

3.8

3.6

18

18

14

10

6.0

Q A

1.8

1.1

93

78

30

23

11

5.6

3.2

Feb. Mar.

1,290

1,200

438

162

99

68

30

20

26

78

63

Apr.

936

470

213

144

101

70

35

5.6

Q A

5,730

6,260

6,070

2,810

909

307

ISO

107

68

49

May

74

55

42

4.9

29

16

3,500

3,800

966

657

462

334

250

72

3,830

1,430

53

June

104

27

613

110

556

9,610

Q Qfifi

1,530

153

59

42

30

19

106.0'

3.0

1.0

July

0.0

65

454

355

307

244

158

96

32

3.0

5,210

6,870

2,440

49S

362

244

Aug.

91

9.6

3.6

2 2

4.0

23

966

536

QftQ

327

974

17,100

6,890

2,070

1,540

1,070

815

18,200

20,500

6,810

Sept.

Qflfl

140

 450

185

125

96

67

52

41

41

35

38

55

50

77

327

1,190

NOTE. No flow en days for which no discharge is shown. Braced figures show estimated mean dally 

discharge for periods indicated.

Monthly discharge of Brazos River at Seymour, Tex., for the year ending September

SO, 1926

Month

April . .

JvH-y. ....................................................

Discharge in second-feet

Maximum

1,062 

275 

23 

93 

2.4 

1,290 

6,260 

3,830 

9,610 

6,870 

20,500 

3,790

20,500

]Mininttnn

6.2 

.0 

1.4 

1.1 

.0 

.0 

3.4 

6.8 

.0 

.0 

2.2 

35

.0

Mean

293 

66.5 

5.02 

13.0 

.40 

112 

841 

552 

750 

564 

2,630 

714

549

Rua-nrflin 

acre-feet

18,000 

3,960 

309 

797 

22.2 

6,910 

50,100. 

34,000 

44,600 

34,700 

161,000 

42,500

397,000

BRAZOS BITER NEAR MINEKAI WELLS, TEX.

iiOCATiON. At highway bridge on Mineral Wells-Palo Pinto highway 4 miles 

west of Mineral Wells, Palo Pinto County, and 4 miles below mouth of Turkey Creek.

DRAINAGE AREA. 23,100 square miles, a large part of which is probably noncontributing (measured on topographic maps and base map of Texas).

RECORDS AVAILABLE. January 31, 1924, to September 30, 1926.

"GAGE. Chain gage attached to downstream handrail of bridge; read by Joe C. 

Savage.

DISCHARGE MEASUREMENTS. Made from bridge or by wading.

CHANNEL AND CONTROL. Channel straight for half a mile above and below gage. 

Banks fairly clean and not subject to overflow. Control is sand and gravel 

riffle, 1,000 feet below gage; shifts.
56 SURFACE WATER SUPPLY, 1926, PART VIII

EXTBEMES OP DISCHARGE. Maximum stage recorded during the year, 15.23 feet 

at 3 a. m. August 31 (discharge, 40,900 second-feet); minimum stage, 2.70 

feet March 16 (discharge, 5.5 second-feet).

1924-1926: Maximum stage recorded, 15.40 feet at 7 a. m. September 13, 

1925 (discharge, 46,900 second-feet); no flow for several periods.

DIVEBSIONS. None.

REGULATION. None.

ACCUBACT. Stage-discharge relation not permanent. Rating curve fairly well 

defined for all stages. Gage read to hundredths twice daily. Daily discharge 

determined by shifting-control method or, on days of considerable fluctuation 

in stage, by averaging discharge for intervals of a day, using gage-height 

graph based on daily gage readings. Records fair.

Discharge measurements of Brazos River near Mineral Wells, Texr , during the year 

ending September SO, 1927

Date

Oct. 26... __ .

Dec. 12 ____ .

Jan. 14. . 

Apr. 15 

Gage 

height

Feet 

4.50

3.18

3.08

5.60

Discharge

Sec.-ft. 

409

26.5

20.9

1,650

Date

July 17. ......

Aug. 25 .. ...

Gage 

height

Feet 

9.77

4.86

5.46

10.42

Discharge

Sec.-ft. 

12,600

679

1,410

17,300

Date

Sept. 4... 

Sept. 15... 

Gage 

height

Feet 

6.64

6.12

3.90

Discharge

Sec.-ft. 

2,680

1,950

136

Daily discharge, in second-feet, of Brazos River near Mineral Wells, Tex., for the year 

ending September 80, 1926

Day

1 ___ -

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

3 _____ -

4 _____ 

5 __ - ...

6 

7 ___ ......

8 _____ ....

9 -

10 

11. 

12 _ .... .....

13 

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

16 

16 

17 

18. 

10

20 

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31 . 

Oct.

2,280

1,800

1,260

986

786

649

569

480

509

649

1,210

1,580

1,260

j ggQ

1,730

2,100

3,400

1,730

1,150.

1,210

1,580

1,320

1,210

934

480

- 366

304

288

261

231

Nov.

190

182

173

165

151

154

360

326

635

1,040

590

386

304

272

245

182

151

130

102

92

85

78

69

66

61

53

47

44

42

41

Dec.

38

38

37

35

30

9O

28

28

26

26

26

26

26

26

25

24

*M

24

OQ

23

22

90

99

21

91

20

20

20

19

in

18

Jan.

18

18

18

22

21

21

20

20

20

10

19

is

18

18

18

18

24

81

71

814

OQfi

202

121

88

81

66

58

CO

47

Feb.

42

38

35

31

29

27

26

25

25

24

23

22

21

91

20

19

18

18

16

15

14

10

19

1111

9

0

Q n

Q q

Mar.

7.6

6.9

6.9

6.9

8.3

9 0

9.4

9.0

8.6

8.3

8.0

7.6

7.2

6.2

5.5

7.6

9.8

9 f|

8.6

916

816

1 1Q

1,210

1,320

1,510

1,380

1,150

649

KftQ

539

Apr.

452

502

424

250

177

186

9/19

134

94

822

4,410

5,000

3,600

2,450

1 fifiO

1,090

786

OQQ

321

dlQft

2,470

Q OKA

Q EAA

5,020

2,100

1 660

1,320

1 ' 040

May

834

64£

480

405

373

360

360

649

487

466

1,230

884

649

373

310

282

245

380

886

5,710 <* 7in

9 9&n

1,210

884

649

524

418

OQQ

609

June

379

1,970

1,190

649

2.000

3,600

3,200

1,840

1,260

786

539

354

299

207

761

1,130

1,780

9 Q7fl

20,600

24, 000

12,400

11,200

7 600

9 can

2 100 i QQA

1 '884 260

ACU

July

554

438

338

261

231

182

147

230

784

1,«60

1,780

986

1,150

1,450

1,090

694

Ato

532

qno

304

277

1QQ

991

1 490

q oin

9 200

jj enn

S

AKfl

4,050

o onn

Aug.

2,190

2,190

1,450

1,880

1,320

986 004

Ala

532

405

321

116

an

66

69

9 QQfl

5,890

2,690

' 1,510

1 040

QJ.fi

5,480

q f\f\f\

9 inn

iq IAA

qn OAA

Sept.

13,800

5,780

4,050

2,620

1,800

1,210

6,220

4,300

3,000

2,410

1,610

1,210

1,150

986

1,890

1,380

934

1 040

' fi<M

EQft

qno

QQA

216

16»

141

154

134
BRAZOS EIVEE BASIN 57

Monthly discharge of Brazos River near Mineral Wells, Tex*, for the year ending

September SO, 1926

Month

November. .. _ . ______________ _____ _.

February. ______ __________________ .

May. -........-.-.......-...... -...................

July

August... ____________________________

Discharge in second-feet

Maximum

3,400 

1,040 

38 

814 

42 

1,510 

8,850 

5,710 

24,000 

9,200 

30,200 

13,800

30,200

Minimum

231

41 

18 

18 

8.3 

5.5 

94 

245 

207 

147 

96 

130

5.5

Mean

1,120 

214 

25.4 

82.5 

20.8 

331 

1,940 

930 

3,920 

1,690 

3,720 

1,950

1,330

Run-off in 

acre-feet

68,700 

12,700 

1,560 

5,070 

1,160 

20,400 

115,000 

57,200 

233,000 

104,000 

229,000 

116,000

964,000

BRAZOS RIVER NEAR GLEN ROSE, TEX.

LOCATION. A quarter of a mile above highway bridge on Glen Rose-Cleburne 

road crossing, 1J4 miles above confluence with Squaw and Paluxy Creeks, 

and 4 miles northeast of Glen Rose, Somervell County.

DKAINAGE AREA. 24,800 square miles, a large part of which is probably noncontributing (measured on topographic maps and base map of Texas).

RECORDS AVAILABLE. October 1, 1923, to September 30, 1926.

GAGE. Combination vertical and inclined staff on right bank; read by J. B. 

Christenson.

DISCHARGE MEASUREMENTS. Made from highway bridge or by wading.

CHANNEL AND CONTROL. Channel straight for 1 mile above and below gage. 

Bed composed of rock, sand, and gravel; fairly permanent. Right bank of 

sand and clay and not subject to overflow; left bank of sand, wooded, and 

subject to overflow at a stage of 17 feet. Control for low water is rock and 

gravel shoal 600 feet below gage; shifts.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 13.20 feet 

during night of June 21 (discharge, about 38,300 seoond-feet); minimum 

stage, 0.19 foot at 5.55 p. m. March 16 (discharge, 9.8 second-feet).

1924-1926: Maximum stage, 15.10 feet at 11 a. m. May 8, 1925 (discharge, 

about 45,700 second-feet). No flow September 7-9, 1924.

DIVERSIONS. None.

REGULATION. None.

ACCURACY. Stage-discharge relation not permanent. Rating curve well 

defined below 30,000 second-feet and extended above. Gage read to hundredths twice daily and oftener during floods. Daily discharge determined 

by shifting-control method or, on days of considerable fluctuation in stage, 

by averaging discharge for intervals of a day, using gage-height graph based 

on daily gage readings. Records poor.

Discharge measurements of Brazos River near Glen Rose, Tex., during the -year 

ending September SO, 1926

Date

Oct. 27..........

Dec. 14... ......

Gage 

height

Feet 

1.48

.45

.38

Discharge

Sec.-ft. 

905

69

38.1

Date

Apr. 30 . 

Julyl8_.. .

Aug. 26 _ .

Gage 

height

Feet 

2.10

1.88

7.20

Discharge

Sec.-ft. 

2,120

1,220

16,000

Date

Aug. 26. 

Gage 

height

Feet 

5.67

Discharge

Sec.-ft. 

9,740
58 SURFACE WATER SUPPLY, 1926, PART VIII

Daily discharge, in second-feet, of Brazos River near Glen Rose, Tex., for the year 

ending September 80, 1926

Day

1 ___ ..

3 

4 _

5 _

6 _ 

7 __ - _

8.. _

9 ~

10 

11 

12 

13- 

14 

15 

16 

17 

18 

19 

30 

21 

22. _ 

23 

24 

25 -

26. _

27 

38 

29 __ 

30 

-31 

Oct.

2,690

2,340

1,760

1,500

1,260

1,150

930

750

580

510

482

580

630

1,040

2,180

12,100

7,760

4,620

3,340

2,180

1,500

1,320

1,500

1,630

1,380

1,260

985

660

530

482

434

Nov.

371

326

299

292

265

353

630

1,150

1,380

2,030

592

540

1,040

670

482

398

362

317

265

224

194

172

160

148

137

128

118

110

107

103

Dec.

103

96

96

92

89

82

76

74

71

71

71

71

68

68

65

65

65

63

63

58

58

55

55

55

53

50

50

50

50

50

48

Jan.

45

48

53

58

60

60

55

50

48

43

41

37

37

37

37

94

172

201

256

240

602

2,960

1,320

1,040

690

398

299

240

179

154

142

Feb.

128

110

96

92

85

79

74

68

63

58

48

43

43

39

35

31

31

31

28

28

24

24

18

16

16

15

14

13

Mar.

13

10

13

24

22

18

15

15

15

15

13

10

10

10

13

1 Q

14

141

1,000

1,630

930

520

1,150

1,440

1,700

1,760

1,440

Apr.

875

630

610

520

492

510

380

290

344

425

760

1,440

6,060

3,590

3,590

2,690

1,890

1,320

875

670

810

680

4,lfiO

15,300

12,000

8,160

5,460

4,090

3,340

2,690

May

2,030

1,500

1,150

985

820

780

800

680

560

550

780

780

1,100

1,440

1,200

875

760

600

2,640

6,780

2,250

5,650

6,060

4,890

3,110

2,030

1,630

1,500

1,260

930

985

June

610

530

720

1,040

3,150

5,170

3,590

4,620

5,170

2,990

1,630

985

690

540

389

335

462

2,910

13,500

28,000

23,500

13,300

12,900

9,700

4,620

3,110

2,690

2,690

2,030

July

1,260

930

760

580

425

353

291

362

820

1,960

1,720

3,630

2,510

2,180

1,500

1,890

1,890

1,200

740

600

570

680

1,260

1,260

560

317

1,110

12,300

9,070

9,380

6,960

Aug.

4,620

1,700

2,510

2,030

1,700

1,440

1,260

1,100

730

444

434

380

317

248

201

186

166

194

1,150

3,930

7,860

4,829

3,590

5,460

8,940

14,300

5,170

3,110

2,510

15,000

25,000

Sept.

27,200

13,400

7,560

6,060

5,170

4,620

5,170

6,660

5,460

4,090

3,110

2,890

2,030

1,700

1,700

1,630

1,500

1,440

1,380

1,380

1,260

985

730

580

472

416

380

362

326

290

Monthly discharge of Brazos River near Glen Rose, Tex., for the year ending

September 30, 1926

Month

AprO 

July.-- 

September.. __ .. . ____________ ..

Discharge in second-feet

Maximum

12,100 

2,030 

103 

2,960 

128 

1,760 

15,300 

6,780 

28,000 

12,300 

25,000 

27,200

28,000

Minimum

434 

103 

48 

37 

13 

10 

290 

550 

335 

291 

1«6 

290

10

Mean

1,940

445 

67.1 

313 

48.2 

392 

2,820 

1,840 

5,270 

2,230 

3,890 

3,670

1,910

Run-off in 

acre-feet

119,000 

26,500 

4,130 

19,200 

2,680 

24,100 

168,000 

113,000 

314,000 

137,000 

239,000 

218,060

1,380,000

BEAZOS EIVEE AT WACO, TEX.

JjOCATioN. At bridge of Texas Electric Co. (formerly called Southern Traction

Co.), 100 feet above suspension bridge in Waco, McLennan County, and 2}6

miles below mouth of Bosque River. 

DRAINAGE AREA. 28,500 square miles, a large part of which is probably noncontributing (measured on topographic maps and base map of Texas). 

HECORDS AVAILABLE. October 1, 1914, to September 30, 1926, and September 

 14, 1898, to December 31, 1911. Records of stage have been obtained by

United States Weather Bureau since August 9, 1900.

GAGE. Stevens continuous recorder attached to downstream side of bridge. 

DISCHARGE MEASUREMENTS. Made from first 1-span highway bridge above gage

or by wading.
BRAZOS RIVER BASIN 59

CHANNEL AND CONTROL. Bed composed of sand and gravel; shifts. Banks are 

clay, and subject to overflow at extremely high stages. Channel straight 

above and below for several thousand feet. Control not known.

EXTREMES OF DISCHARGE. Maximum stage during year, from water-stage recorder, 19.30 feet at 2.30 p. m. June 22 (discharge, 44,400 second-feet); 

minimum discharge, 84.0 second-feet at 1 p. m. December 28.

1898-1926: Maximum stage recorded, 39.7 feet December 3, 1913 (discharge not determined); no flow August 20-21, 1918, and probably several 

days in August, 1923.

DIVERSIONS. Records of the Board of Water Engineers for the State of Texas 

show that numerous small diversions are made above the station for mining, 

irrigation, and municipal uses, but total probably does not appreciably affect 

flow, except during low stages.

REGULATION. None.

ACCURACY. Stage-discharge relation not permanent. Rating curve fairly well 

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

determined by shifting-control method or, on days of considerable fluctuation in stage, by averaging discharge for intervals of a day. Records fair.

Discharge measurements oj Brazos River at Waco, Tex., during the year ending

September 30, 1926

Date

Oct. 27 - .-.

Nov. 24 

Jan. 12 

June 18 _____

Gage 

height

Feel 

8.54

6.96

6.25

7.30

Discharge

Sec.-ft. 

1,480

385

124

680

Date

July 10--. 

Aug. 31 -

Do.. 

Sept. I..... _

Gage 

height

Feet 

8.74

12.60

17.12

Discharge

Sec.-ft. 

1,670

11,100

32, 400

Date

Sept. 1--. ------

Gage 

height

Feet 

18.08

15.92

Discharge

Sec.-ft. 

34,000

Daily discharge, in second-feet, of Brazos River at Waco, Tex., for the year ending

September 30, 1926

Day

1 

2 __ -----

3 ... 

4 

5... ------

6 ... ...

7 ... 

8_ 

9. .....

10 

11 

12. 

13. 

14...... ..

15 

16 

17 

18 

19 

20 

21 

22 

23 

24,.. .._._.

25_ 

26 

27 -

28 

29 

30- 

 >1

Oct.

4,330

3,820

2,960

2,450

2,140

1,840

1,470

1,220

1,020

885

794

703

745

1,500

885

9,820

5,100

3,740

3,300

2,560

2,140

1,740

1,890

3,440

2,090

1,560

1,340

1,100

920

780

Nov.

634

550

504

460

443

4,910

4,520

5,950

2,670

2,140

2,240

1,560

1,180

920

1,260

1,100

885

738

634

562

520

465

421

380

351

324

297

274

258

250

Dec.

246

238

226

206

189

180

174

168

165

165

160

158

165

171

155

145

140

140

138

135

130

122

122

122

120

120

118

101

107

101

105

Jan.

125

174

202

189

171

160

152

145

140

138

125

122

120

113

111

1,340

10,900

6,150

1,890

1,340

1,990

4,160

3,040

2,780

2,340

2,040

1,890

1,890

1,560

1,260

1,060

Feb.

885

822

745

654

586

538

492

460

416

380

356

338

310

292

258

238

234

230

198

192

189

186

168

158

150

138

128

125

Mar.

122

115

113

145

\ 250

' 574

1,490

498

351

6,940

4,150

1,600

1,260

1,020

990

885

801

773

731

682

2,270

3,510

1,840

1,140

4,740

4,280

2,450

1,790

1,890

5,530

3,220

Apr.

2,670

2,340

1,840

1,520

1,470

1,340

2,090

1,900

1,220

28,000

15,200

3,790

4,300

6,400

4,700

4,600

3,980

3,440

2,780

2,290

9,380

26,100

5,830

18, 500

17, 800

10,900

7,150

5,650

4,330

3,660

May

3,160

2,900

3,190

2,290

1,940

5,420

2,970

2,450

1,940

5,69*0

4,800

2,300

1,600

1,560

1,340

1,740

1,700

1,600

1,520

2,640

7,700

3,580

5,440

6,150

4,060

3,230

2,620

2,240

1,890

1,560

1,380

June

3,110

2,090

1,300

1,380

2,140

2,780

2,500

2,450

5,310

4,150

3,020

2,560

2,140

1,700

1,340

1,220

822

703

738

3,330

19,500

39, 000

20, 500

12, 400

12,800

9,550

5,900

4,240

3,230

2,670

July

2,240

1,740

1,420

1,180

990

843

731

7,530

6,540

1,700

9,100

3,330

2,250

5,400

2,670

2,040

1,520

1,650

1,700

1,340

1,020

4,340

4,420

6,650

5,490

1,940

1,560

1,260

10, 400

9,200

8,900

Aug.

5,900

3,510

2,670

2,500

2,090

1,990

1,740

1,560

1,600

1,300

1,100

955

808

661

752

622

562

504

448

390

375

3,350

2,900

2,340

2,240

8,360

9,320

4,330

3,230

3,570

12,000

Sept.

31,800

24,000

8,900

6,150

5,200

4,420

5,400

7,150

7,400

6,400

4,420

3,370

3,300

2,840

2,240

1,940

1,740

1,650

1,940

2,240

1,740

1,560

1,520

1,300

1,140

1,100

955

885

731

598

96272 3(
60 SURFACE WATER SUPPLY, 1926, PART VIII

Monthly discharge oj Brazos River at Waco, Tex., for the year ending September 80,

1926

Month

February. .. ________ . ______________ . ...

March.. _ __ ... __ .... ___ ... ___ ... _ ... _ .

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

September. ____________ __________ . .....

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

Discharge in second-feet

Maximum

15,200 

5,950 

246 

10,900 

885 

6,940 

28,000 

6,150 

39, 000 

10,400 

12, 000 

31, 800

39,000

Minimum

703 

250 

101 

111 

125 

113 

1,220 

1,340 

703 

731 

375 

598

101

Mean

2,690 

1,250 

153 

1,540 

352 

1,810 

6,840 

2,990 

5,820 

3,580 

2,700 

4,800

2,890

Run-off in 

acre-feet

166,000 

74,200 

9,390 

94,800 

19,600 

111, 000 

407,000 

184,000 

346,000 

220,000 

166,000 

286,000

2, 080, 000

BRAZOS RIVER NEAR BRYAN, TEX.

LOCATION. At Pitts Bridge, on State highway between Bryan and Caldwell, 1% 

miles below mouth of Little Brazos River, 5% miles below Southern Pacific 

Co.'s railroad bridge, 1% miles above old station at Jones Bridge, and 9 

miles southwest of Bryan, Brazos County.

DRAINAGE AUEA. 38,400 square miles, part of which is probably noncontributing (measured on topographic maps, base map of Texas, and United States 

Army progressive military maps).

RECORDS AVAILABLE. September 11, 1925, to September 30, 1926.

GAGE. Chain gage attached to upstream handrail of bridge; read by James J. 

Siegert.

DISCHARGE MEASUREMENTS. Made from highway or railroad bridge.

CHANNEL AND CONTROL. Bed of sand and clay; shifts. Channel curved above, 

at, and below gage. Banks of sand and clay;- shift; subject to overflow at 

extremely high stages. Low-stage control is rock shoal 2 miles below gage; 

permanent. High-stage control not known.

EXTREMES OF DISCHARGE. Maximum stage recorded during period, 21.04 feet 

at 6 p. m. November 7 (discharge, about 35,600 second-feet); of minimum 

stage, 4.30 feet December 27 to January 1 (discharge, 560 second-feet). 

A higher and lower stage probably occurred during period of missing record 

in 1926.

DIVERSIONS. None. *

REGULATION. None.

ACCURACY. Stage-discharge relation probably not permanent, but data insufficient to justify shifting-control methods. Rating curve well defined from 

500 to 28,000 second-feet and extended above 28,000 second-feet. Gage read 

to hundredths twice daily. Daily discharge determined by applying mean 

daily gage height to rating table or, on days of considerable fluctuation 

in stage, by averaging discharge for intervals of a day, using gage-height 

graph based on daily gage readings, except as noted in footnote to table of 

daily discharge. Records fair.

Discharge measurements of Brazos River near Bryan, Tex., during the period 

September 11, 1925, to September 80, 1926

Date

1925 

Sept. 11--. ..

Sept. 14........

Sept. 15 ..-.,_

Gage 

height

Feet 

4 54

14.25

11.33

18. 14

16.17

Discharge

Sec.-ft:

17, 500

9 100

27,600

21, 300

Date

1925 

Sept. 16 

Sept. 17- ..

Oct. 23.- ..-

Gage 

height

Feet

11.18

5.46

Discharge

Sec.-ft. 

17, 400

10,400

3,790

1,260

Date

1926 

July 20.... .

Sept. 4-.... .

Sept. 27. _ . 

Gage 

height

Feet 

7.09

15.08

12.01

5.58

Discharge

Sec.-ft. 

2,920

19,100

10,900

1,350
BRAZOS RIVER BASIN 61

Daily discharge, in second-feet, of Brazos River near Bryan, Tex., for the period 

September 11, 1925, to September 80,'1926

Day

1

2

3-- 

4--. .... ........ ..........

5. _..-.-___._._______.__.

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

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

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

9---.-...-............ ......

10-. . ........... ...... ..

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

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

13 

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

15. .

16.---_........ ....... . .

17 

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

19-- 

20. ... ..

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

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

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

24-- ..-.. ....... .....

25.- .......................

26 

27-- 

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

29-. ...... ............... ..

30-... ........ ...... ..........

31- ........................

Sept.

688

742

15,500

10,900

10,700

13,600

7,600

5,600

4,170

3,350

2,820

2,620

2,260

2,180

9,100

11,200

7,400

Oct.

5,480

4,140

4,280

3,490

3,030

2,590

2,300

2,100

1,850

1,600

1,520

1,680

3,980

11,400

13,300

19,900

24,200

17, 300

10, 700

5,830

4,420

4,010

3,370

3,620

6,140

5,060

4,280

3,370

2,920

2.300

Nov.

2,100

1,850

1,600

8,380

21, 100

33,700

32,000

31,200

23,200

12,200

6,600

3,960

3,490

3,250

3,250

2,920

2,490

2,300

2,300

1,420

1,300

1,220

1,080

1,080

1,220

1,370

Dee.

940

880

880

770

770

770

770

770

742

742

715

715

715

715

715

715

715

715

715

688

660

635

610

585

560

560

560

560

560

Jan.

560

770

1,850

June

5,650

5,480

5,480

4,860

4,860

4,420

4,280

4,280

4,280

3,880

3,620

2,810

2,700

2,490

2,300

2,300

15,700

27,000

25,300

18,100

14,800

12,400

7,800

6,600

5,480

July

4,710

4,280

3,880

3,620

2,920

2,590

2,020

4,280

10,700

7,600

7,400

7,200

6,600

5,650

5,480

5,480

4,710

3,750

3,030

2,700

3,620

4,140

5,830

9,540

12,100

11,900

7,000

4,560

5,320

7,800

9.760

Aug.

8,000

6,800

5,480

4,420

4,010

3,620

3,140

3,030

2,700

2,390

2,390

2,100

1,940

1,760

1,680

1,440

1,370

1,220

1,150

1,080

1,010

1,220

1,940

3,140

3,750

3,030

8,620

9,840

5,510

4,140

5.030

Sept.

12,100

20,700

21,000

11,500

7,100

5,480

5,010

4,860

8,150

9,980

6,800

4,860

3,880

3,490

3,250

2,920

2,390

2,200

2,100

1,940

2,020

2,810

2,020

1,850

1,760

1,600

1,370

1,220

1,150

1,010

NOTE. No record from Jan. 5 to June 5, 1926.

Monthly discharge of Brazos River near Bryan, Tex., for the period'September 11, 

1925, to September SO, 1926

Month

1925

1926

June 5-30. . ___ . ___ .. _____ . . ... .. 

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

Discharge in second-feet

Maximum

24,500 

24,200 

33,700 

940

27,000 

12,100 

9,840 

21,000

Minimum

688 

1,520 

1,080 

560

2,300 

2,020 

1,010 

1,010

Mean

8,330 

6,310 

7,140 

701

1,050 

7,870 

5,810 

3,450 

5,220

Run-off in 

acre-feet

331,000 

388,000 

425,000 

43,100

8,310 

390, OCO 

357, 000 

212,000 

310,000

BRAZOS RIVER AT ROSENBERG, TEX.

LOCATION. At Rosenberg-Richmond highway bridge, at Rosenberg, Fort Bend

County, 3 miles above mouth of Jones Creek. 

DRAINAGE AREA. 44,000 square miles (measured on topographic maps, base

map of Texas, and United States Army progressive military maps). 

RECORDS AVAILABLE. October 1, 1922, to September 30, 1926. Records of stage

have been obtained by United States Weather Bureau since July 1, 1914. 

GAGE. Chain gage attached to downstream handrail of bridge; read by G. W.

Nelson.

DISCHARGE MEASUREMENTS. Made from highway bridge. 

CHANNEL AND CONTROL. Bed of sand; shifts. Channel straight for 400 feet

above and 700 feet below gage. Right bank of sand and clay. Left bank

above bridge is wooded and below bridge is clean, subject to overflow at

extremely high stages. Control is bed of stream; shifts.
62 SURFACE WATER SUPPLY, 1926, PART VIII

EXTREMES OP DISCHARGE. Maximum stage recorded during year, 37.1 feet at 

2 p. m. April 26 (discharge, about 86,900 second-feet; minimum stage, 2.50 

feet at 7 a. m. December 29 (discharge, 1,160 second-feet).

1923-1926: Maximum stage recorded, that of April 26, 1926; minimum 

stage, 0.30 foot August 19-22, 1925 (discharge, 306 second-feet).

Recent levels to flood marks show that a stage of 55.5 feet,2 present gage 

datum was reached at 11 p. m. December 9, 1913.

DIVERSIONS. None of importance.

RE GXTL ATI ON . None.

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

from 325 to 40,000 second-feet and extended above by means of area-velocity 

curves; extension may be subject to considerable error. Gage read to tenths 

once daily. Daily discharge determined by applying daily gage height to 

rating table or, on days of considerable fluctuation in stage by using gageheight graph based on daily gage readings. Shifting control method used 

May 17 to September 30. Records poor.

COOPERATION. Gage-height record furnished by United States Weather Bureau.

Discharge measurements of Brazos River at Rosenberg, Tex., during the year ending

September 30, 1926

Date

Oct. 22 

Dec. 21 --- 

Gage 

height

Feet 

17.16

3.26

Discharge

Sec.-ft. 

25, 300

1.600

Date

Apr. 13 _____ - ___ . ......

Aug. 5. ________ .- .... ...

Gage 

height

Feet 

21.84

8.23

Discharge

Sec.-ftt 

"40,000

7.820

1 Surface velocity observed for part of measurement and coefficient of 0.91 used to reduce to mean velocity.

Daily discharge, in second-Jeet, of Brazos River at Rosenberg, Tex., for the year 

ending September 30, 1926

Day

1 -

2 

3-. 

4 

5 -

6 -

7 ... -

8 .

9 

10 

12 .

13 

14 

15 

16 

17 

18- 

19 

20 

21 

23 

24. 

25 .

26 

97

28 

29 

SO -

SI _ .

Oct.

9,820

8,320

6,800

5,730

4,240

4,480

3,890

3,240

2,740

2,560

2,300

2,470

2,560

7,790

21,500

40,700

58,400

55, 000

46,700

42,500

34,200

16,100

11, 600

8,970

8,160

10,500

14 000

12,900

12, 100

15,300

Nov.

18,000

15,100

12,100

9,990

12,900

22,500

32,800

45,200

50,600

50,000

46,700

40,100

30,800

24 400

18,300

15,900

13,600

12,300

13,000

13,800

12,300

in onn

9,820

8,160

6,520

5,860

4,360

2,930

2,640

Dec.

2,470

2,090

2,020

1,820

1,820

1,750

1,680

1,620

1,560

1,500

1,500

1,440

1,380

1,440

1,440

' 1,500

1,620

1,680

1,680

1,680

1,620

1,380

1,330

1,330

1,280

1,280

1,220

1,220

Jan.

1,610

5,300

13,800

18,500

13, 800

7,690

6,120

5,470

5,080

3,780

2,840

2,470

2,160

1,950

1,820

1,750

5,550

21, 500

22,500

14 600

12,500

14,200

12, 700

11,200

8,970

8,970

Feb.

8,970

8,320

7,240

6,800

6,380

5,340

5,080

4,000

3,340

3,340

3,130

2,560

2,380

2,020

2,230

2,160

1 880

1,750

i 7^n

1,680

1,620

1,560 i t\t\r\

1 f^nn

Mar.

1,440

1,380

1,380

1,440

1,880

2,380

2,740

2,380

2,090

7,640

18,300

23,200

31, 100

23,900

16,100

12,500

10,500

11 600

10,900

9,820 10 onn

IQ 4nn

25,100

26, 700

26,700

9s snn

29,800

33, 600

Apr.

35,300

37,000

33,400

25, 900

18,900

15,500

13,000

11,600

11,200

11,000

12,900

20,600

34,500

30,800

24,900

21,300

19,200

15,900

14, 600

14,800

21,000

64,800

74,400

81,200

86,200

83, 900

82,200

68,900

May

42,800

36,700

38, 700

35,000

33,900

34,500

34,500

31,700

31,100

33,900

35,900

32, 200

27,500

24,900

18,500

13,800

12, 100

10,300

8,800

7,840

8,000

7,090

6,520

8,000

7,090

7,840

7,390

6,660

5,860

June

*

5,990

5,470

4,840

4,240

5,080

6,940

5,990

6,660

8,160

7,090

5,600

5,470

5,470

6,520

6,120

5,600

5,340

4,840

4,360

4,240

3,890

3,340

3,240

4,120

21,900

21, 500

18,300

17 nnn

14,800

11,000

July

9,310

7; 390

6,800

6,250

5,340

4,720

4,000

3,670

3,450

3, 030

3,340

7,310

7,310

5,340

5,600

6,800

5,600

5,990

5,730

4,600

4,120

4,000

3,560

3,780

3,890

6,790

12,900

9,990

7,240

6,250

Aug.

5,210

9,720

10, 700

9,310

7,840

7,540

6,800

5,600

5,210

4,600

4,240

3,780

3,450

3,340

3,130

2,840

2,640

2,560

2,160

2,230

2,090

2,090

2,020

1,880

1,820

1,820

1,750

3,340

3,340

6,120

7,840

Sept.

5,600

5,080

9,340

19,400

18,500

12,700

8,970

7,090

5,860

5,600

5,730

6,250

7,090

5,860

6,120

5,080

4,000

3,450

3,030

2,840

2,470

2,380

2,230

2,230

2,380

o onfl

9 noft

1,950

* Previously reported stage of 56.4 feet in error.
BEAZOS RIVER BASIN 63

Monthly discharge of Brazos River at Rosenberg, Tex., for the year ending September

Month

March. ____________ _______________ _

June ____________________________ _

July .-. -..- _ ....._ .-......_ ..-....._-.

Discharge in second-feet

Maximum

58,400 

50,600 

2,470 

22,500 

8,970 

33,600 

86,200 

42,800 

21,900 

13,200 

10,700 

19,400

86,200

Minimum

2,300 

2,640 

1,160 

1,610 

1,500 

1,380 

.11,000 

5,860 

3,240 

3,030 

1,750 

1,950

1,160

Mean

16,100 

18,900 

1,560 

8,760 

3,360 

15,500 

36,700 

20,100 

7,770 

6,040 

4,420 

5,720

12,100

Run-off in 

acre-feet

991, 000 

1, 120, 000 

95,800 

539,000 

186,000 

955,000 

2, 190, 000 

1,240,000 

462,000 

372,000 

272,000 

340,000

8, 760, 000

CLEAR FORK OF BRAZOS RIVER AT NUGENT, TEX.

LOCATION. At highway bridge at Nugent, Jones County, 2 miles below mouth of 

Elm Creek.

DRAINAGE AREA. 2,220 square miles (measured on topographic maps and base 

map of Texas).

RECORDS AVAILABLE. February 10, 1924, to September 30, 1926.

GAGE. Vertical staff on left bank, 350 feet below highway bridge; read by C. F. 

Howard.

DISCHARGE MEASUREMENTS. Made from bridge or by wading.

CHANNEL AND CONTROL. Channel straight for 1,000 feet above and 400 feet 

below gage. Bed of rock; permanent. Banks covered with light brush, 

subject to overflow at extremely high stages. Control is rock shoal, 1,000 

feet below gage; permanent.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 15.50 feet at 

12.35 p. m. June 19 (discharge, 9,620 second-feet); minimum stage, 1.28 feet 

August 17 (discharge, 3.4 second-feet).

1924-1926: Maximum stage, that of June 19, 1926; minimum discharge, 

0.20 second-foot July 27-28, 1925.

DIVERSIONS. None.

REGULATION. None.

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

below 2,000 second-feet and fairly well defined from 2,000 to -10,000 secondfeet. Gage read to hundredths twice daily. Daily discharge determined 

by applying mean daily gage height to rating table or, on days of considerable 

fluctuation in stage, by averaging discharge for intervals of a day, using gageheight graph based on daily readings. Records fair.

Discharge measurements of Clear Fork of Brazos River at Nugent, Tex., during the 

year ending September 80, 1926

Date

Nov. 20.----- _

Feb. 9... .....

Mar. 29 .........

Gage 

height

Feet 

1.72

1.65

1.51

1.74

Discharge

Sec.-ft. 

20.6

15.4

8.1

24.3

Date

June 19 __ - ...

Do.- ....

Gage 

height

Feet 

2.10

15.42

14.50

10.22

Discharge

Sec.-ft. 

84

«9,790

4,420

Date

Sept. 17. .....

Gage 

height

Feet 

1.54

1.50

Discharge

Sec.jt, 

11.4

10.8

1 Surface velocities observed for part of measurement and coefficient used to reduce to mean velocities.
64 SURFACE WATER SUPPLY, 1926, PART VIII

Daily discharge, in second-feet, of Clear Fork of Brazos River at Nugent, Tex., for 

the year ending September 30, 1926

Day

1 ..... .

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

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

4,.. ..........

5..,..... .

6.... ...-.

7

8..... .

9 .

10 

11 

12 

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

14....... ..

15..-.....--..

16.... .

17 

18 .

19...-. .

20.-.-.-...-.

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

22 .-.

23... .......

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

25 .......

26 

27 

28 

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

30 ........

31..... .

Oct.

KG

51

54

36

32

29

25

23

24

330

299

395

90

51

99

474

579

618

576

88

64

53

48

39

33

33

29

25

26

25

25

Nov.

25

25

25

23

21

122

150

78

33

26

21

18

18

17

15

16

19

19

20

16

18

18

17

17

17

17

15

15

15

15

Dec.

15

15

14

12

12

13

12

12

12

12

12

12

12

12

12

12

12

12

11

11

11

11

12

12

12

12

12

11

10

11

11

Jan.

11

12

14

12

12

11

11

12

11

11

11

12

11

10

10

10

11

12

11

10

11

12

12

12

11

12

11

11

10

10

9

C

Feb.

9.6

9.6

9.6

9.6

9.6

8.8

8.8

8.8

8.4

8.8

8.4

8.0

8.0

8.0

7.4

7.4

7.4

7.4

7.4

7.4

7.4

7.4

7.4

7.4

7.4

7.4

7.4

7.4

Mar,

7.1

7.4

7.7

8.8

9.6

10

9.6

8.8

8.0

8.0

8.0

8.8

7.7

7.4

7.4

7.4

10

10

11

9.6

120

349

33

14

250

202

56

26

26

42

147

Apr.

64

28

18

15

14

12

10

11

414

1,810

820

107

61

58

42

33

30

23

12

11

412

1,080

860

296

59

34

25

21

18

18

May

17

17

580

54

54

451

420

102

39

30

26

21

19

20

19

18

16

14

254

42

15

10

9.6

8.8

8.8

8.4

8.4

8.8

8.8

8.8

8.8

June

8.4

11

308

819

754

80

26

15

9.6

8.8

6.8

5.9

5.0

91

484

85

19

1,170

8,010

4,770

1,320

742

78

56

46

42

33

28

24

20

July

19

18

16

16

14

13

12

440

1,140

1,490

228

72

44

29

23

19

18

16

14

12

11

11

11

46

338

49

35

113

42

108

379

Aug.

174

47

18

11

9.6

6.8

5.3

12

11

10

10

10

7.4

4.0

3.8

4.2

3.4

30

12

7.4

5.6

3.8

4.2

4.2

15

7.7

9.2

9.0

7.4

7.7

14

Sept.

7.1

9.6

11

19

566

1,070

192

59

34

24

34

54

99

30

76

18

11

8.8

8.0

7.7

7.7

7.4

7.1

7.1

6.2

5.3

5.9

7.1

8.4

11

Monthly discharge of Clear Fork of Brazos River at Nugent, Tex., for the year ending

September 30, 1926

Month

October _____ ....... . ........................

November... _ ___ __ _____ ....... . .........

June.. __ _____ _____ . . . __ . .. __

July

August ____ __ _ . ______ . ... . _

September... ___ ___ .. ___ _____ __ ....

Theyear. ...... ..................................

Discharge in second-feet

Maximum

618 

150 

15 

14 

9.6 

349 

1,810 

580 

8,010 

1,490 

174 

1,070

8,010

Minimum

23

15 

10 

9.6 

7.4 

7.4 

10 

8.4 

5.0 

11 

3.4 

5.3

3.4

Mean

140

29.0 

12.0 

11.2 

8.13 

46.4 

214 

74.7 

636 

155 

15.6 

80.4

118

Run-off in 

acre-feet

8,590 

1,730 

738 

687 

451 

2,850 

12,700 

4,600 

37,800 

'9, 510 

959 

4,780

85,400

CLEAR FORK OF BRAZOS RIVER AT FORT GRIFFIN, TEX.

LOCATION. At highway bridge on Fort Griffin-Throckmorton road, 600 feet 

below mouth of Collins Creek and half a mile east of Fort Griffin, Shackelford County.

DRAINAGE AREA. 3,970 square miles (measured on topographic maps and base 

map of Texas).

RECORDS AVAILABLE. December 9, 1923, to September 30, 1926.

GAGE. Chain gage attached to downstream side of bridge; read by H. C. Herron.

DISCHARGE MEASUREMENTS. Made from bridge or by wading.
BEAZOS EIVEE BASIN 65

CHANNEL AND CONTROL. Channel straight for 200 feet above and 400 feet 

below gage. Bed of gravel; permanent. Banks of clay, underlain by a 

stratum of rock; sparsely wooded; fairly permanent. Left bank subject to 

overflow at a stage of 15 feet, and right bank at a stage of 33 feet. At 

extremely high stages bridge can be reached only by boat. Low-water 

control is gravel shoal, 300 feet below gage; fairly permanent. High-water 

control is probably channel and banks some distance below station.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 27.0 feet at 

2 a. m. June 21 (discharge, about 12,500 second-feet); minimum stage, 2.26 

feet March 20 (discharge, 0.70 second-foot).

1924-1926: Maximum stage, that of June 21, 1926; no flow at 6 p. m. 

April 8, 1925.

DIVERSIONS. Small diversions for municipal use; amount not known.

REGULATION. Possibly slight regulatory effect at low stages by power plant 

at Stamford.

ACCURACY. Stage-discharge relation not permanent. Rating curve well 

defined below 6,700 second-feet and extended above. Gage read to 

hundredths once daily and oftener during floods. Daily discharge determined by shifting-control method or, on days of considerable fluctuation 

 in stage, by averaging discharge for intervals of a day using gage-height, 

graph based on daily gage readings. Records for low and intermediate 

stages fair; for high stages, poor.

Discharge measurements of Clear Fork of Brazos River at Fort Griffin, Tex., during 

the year ending September 30,1926

Date

Oct. 27 ... _ .

Nov. 23.........

Feb. 11 

Mar. 30 

height

Feet 

2.72

2.38

2.72

3.02

Discharge

Sec.-ft.

12.1

-10.7

88

Date

Do 

Gage 

height

Feet 

2.32

25.46

6.17

5.51

Discharge

Sec.-ft. 

8.7

no, 400

1,440

1,080

Date

June 24 .........

Aug. 4... ... .

§ept. 16 .

Gage 

height

Feet 

5.13

4.02

3.00

2.90

Discharge

Sec.-ft. 

833

326

79

61

« Partly estimated.

* Measurement made principally by timing drift and without adequate information to determine coefficient; stage rapidly falling..

Daily discharge, in second-feet, of Clear Fork oj Brazos River at Fort Griffin, Tex., 

for the year ending September 30,1926

Day

1 ....

2- .........

3 

4... _

5 ......

6.. ... ...

7 ... .....

8.. ....

9- __ .....

10 

11 

12 

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

14 

15-.-. ..

16 

17 .

18 

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

20 

Oct.

133

105

74

57

44

44

40

40

209

482

556

396

376

358

609

797

897

814

950

Nov.

23

19

25

22

22

158

49

37

109

120

162

QO

46

24

14

13

17

11

13

Dec.

12

13

11

11

11

11

12

12

14

14

12

19

9.8

9 0

Q 7

8.1

7.2

10

8.7

8.1

Jan.

5.6

5.2

A Q

5.2

6.9

9.8

8.1

6 9

4.4

3.2

2.6

2.6

4.0

4.6

5.0

5.8

K O

A Q

5.8

Feb.

5.4

5.8

6.0

x, 9

4.6

6.0

8.1

9.4

10

Q 7

11

Q 8

Q 8

9 0

9 4

9

0

9 Q

11

13

Mar.

11

11

12

14

15

13

8.7

8 4.

6.0

4.0

9 8

2 A

2.0

9 A,

1.8

1.8

1.4

1.0

.7

Apr.

165

236

136

71

61

56

47

30

42

QAQ

2,420

1 Sfift

416

1Q7

133

QK

70CO

f\7

51

May

39

30

95

241

227

255

556

406

1AQ

81

61

42

OR

26

25

22

oo

tvM

1.150

June

11

13

12

317

1,050

1,200

288

106

55

48

32

1ft

10

165

1 440

1,680

4 910

8 240

11.800

July

53

20

14

12

20

22

50

74

48

1,110

1,580

K7A

fQQ

103

91

77

69

30

31

28

Aug.

396

416

07

63

42

30

25

24

23

16

12

12

12

13

13

16

31

281

257

Sept.

58

36

24

22

17

34

1,310

974

510

170

120

77

74

74

66

64

49

42

35

30
66 STJKFACE WATEKr SUPPLY, 1926, PAET VIII

Daily discharge, in second-feet, of Clear Fork of Brazos River at Fort Griffin, Tex., 

for the year ending September 30, 1926 Continued

Day

21... .....

22 .

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

24--------...

25--. .-..

26 

27 

28 

29 

30- 

31 -. .

Oct.

381

131

91

76

70

52

42

36

36

33

28

Nov.

12

11

11

9.8

15

14

13

16

19

16

Dec.

8.4

7.2

6.9

7.5

7.2

6.6

8.1

8.1

6.6

6.6

5.4

Jan.

6.9

7.8

7.8

6.0

7.8

6.0

5.8

6.9

6.0

5.2

Feb.

19

14

is

14

19

 10

11

Mar.

19

71

791

114.

230

120

84

70

Apr.

102

i Qftfl

1,380

518

 too

76

64

51

May

638

400

141

77

44

25

1ft

18

12

7.8

6.0

June

11,400

3,970

323

200

140

74

49

53

July

24

22

23

165

78

40

30

18

63

257

306

Aug.

231

63

49

33

31

27

20

31

725

290

148

Sept.

30

25

18

11

7.8

8.4

11

12

12

12

Monthly discharge of Clear Fork of Brazos River at Fort Griffin, Tex., for the year

ending September 30,1926

Month

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

November.---..- .. _ __ -. . - _ __ ... .

December _ -. -- __ .. ..... ....

February.- __ ___ ...... _ .

March..---- _ - ___ _ ...... _ ..........

April ____ . _______________ ._ _ .

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

June

July. 

September. _____ . ___ _ __ . _____ . ......

The year.. _ ... __ .--. .... _ ......

Discharge in second-feet

Maximum

950 

162 

14 

9.8 

18 

791 

2,420 

1,150 

11,800 

1,580, 

725 

1,310

11,800

Minimum

28 

9.8 

5.4 

2.6 

4.6 

.7 

30 

6.0 

11 

12 

12 

7.8

.7

Mean

279 

37.1 

9.46 

5.76 

10.1 

87.4 

436 

202 

1,630 

168 

116 

131

258

Run-off in 

acre-feet

17,200 

2,210 

582 

354 

561 

5,380 

25,900 

12,400 

97,000 

10,300 

7,160 

7,800

187,000

CLEAE FORK OF BEAZOS RIVEE AT CEYSTAI FALLS, TEX. *

LOCATION. At Walker-Caldwell Water Co.'s pumping plant, one-fourth mile

north of Crystal Falls, Stephens County, and 1 mile above mouth of Hubbard

Creek. 

DRAINAGE AREA. 4,320 square miles (measured on topographic maps and base

map of Texas).

RECORDS AVAILABLE. November 12, 1921, to September 30, 1926. 

GAGE. Vertical staff on right bank opposite pumping plant; read by pump

man. 

DISCHARGE MEASUREMENTS. Made by wading or from highway bridge 500 feet

below gage. 

CHANNEL AND CONTROL. Channel straight for 800 feet above and 400 feet

below gage. Bed of rock. Right bank of clay, fairly clean, and high; left

bank of clay, wooded, and subject to overflow at extremely high stages.

Control is concrete dam 800 feet below gage; permanent. 

EXTREMES OP DISCHARGE. Maximum stage recorded during year, 12.70 feet at

5 p. m. June 19 (discharge not determined); no flow March 16-20.

1922-1926: Maximum stage, 18.25 feet at 10.30 p. m. April 30, 1922

(discharge, not determined); no flow during several periods.

DIVERSIONS. Large part of ordinary flow diverted for municipal use and mining. 

REGULATION. Low-water flow partly regulated by dam above gage.
BEAZOS EIVER BASIN 67

ACCURACY. Stage-discharge relation practically permanent. Rating curve 

well denned below 6,200 second-feet and extended to 12,000 second-feet 

but does not cover the range of stage for the year. Gage read to hundredths 

once daily. Daily discharge determined by applying mean daily gage height 

to rating table or, on days of considerable fluctuation in stage, by averaging 

discharge for intervals of a day using gage-height graph based on daily 

gage readings, except as noted in footnote to table of daily discharge. 

Records fair.

Discharge measurements of Clear Fork of Brazos River at Crystal Falls, Tex., 

during the year ending September 80, 1926

Date

Oct. 27-- ..

Nov. 23. -. 

Feb. 11 

Gage 

height

Feet 

1.24

1.10

1.01

Discharge

Sec.-ft.

78

9.5

«3.0

Date

Mar. 30 

Gage 

height

Feet 

1.33

1.10

1.14

Discharge

Sec.-ft. 

121

22.0

26.3

Date

Sept. 16 

Gage 

height

Feet 

1.24

Discharge

Sec.-ft. 

62

1 Estimated.

Daily discharge, in second-feet, of Clear Fork of Brazos River at Crystal Falls, 

Tex., for the year ending September 80, 1926

Day

1 

2 ...

3 

4 .. ...

5 

6 .

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23. ..

24 

25 

26 

27 

28 

29 

30 

31 

Oct.

199

155

104

62

71

62

62

52

327

481

527

670

550

550

1,850

Q14

852

915

915

1 ,040

1,040

230

129

93

71

71

71

40

40

36

44

Nov.

36

29

29

16

36

104

36

1 ftQ

104

62

44

36

on

16

16

14

1Q

16

12

16

12

12

16

16

16

16

14

Dee.

14

29

16

8.0

6.0

10

8.0

12

oo

22

16

16

16

8.0

8.0

8.0 8.0

8.0

5.2

5.2

5.2

8.0

12

12

8.0

8.0

8.0

12

Jan.

16

16

16

12

12

8.0

8.0

8.0

5.2

5.2

5.2

3.6

5.2

5.2

3.6

3.6

62

8.0

3.6

3.6

12

8.0

8.0

8.0

8.0

8.0

8.0

5.2

5.2

5.2

5.2

Feb.

5.2

3.6

3.6

3.6

2.0

2.0

<\ 9

5.2

4.4

4.4

2.8

3.6

3.6

2.0

3.6

3.6

3.6

3.6

2.0

3.6

3.6

3.6

3.6

3.6

9 n

2.0

9 ft

Mar.

2.3

2.7

3.0

3.3

3.6

3.6

5.2

5.2

5

O

3.6

3.6

16

2.0

.8

.0

.0

.0

54

57

22

762

272

385

385

123

Apr.

62

254

184

116

71

44

36

22

22

QQO

2,200

O fiflft

358

155

104

71

62

62

CO

155

1,520

846

504

238

142

82

71

May

52

52

36

611

491

336

246

850

666

116

82

62

36

36

29

36

40

1,390

1,040

754

338

116

62

36

22

16

12

12

8.0

June

8.0

5.2

5.2

689

1,180

1,380

684

296

129

62

44

29

16

129

16

10

9,100

9,700

2,910

670

281

184

129

116

93

82

July

71

62

52

44

36

36

458

474

128

46

1,150

1,390

508

169

116

82

52

36

32

29

22

36

22

29

199

104

82

71

102

264

230

Aug.

264

504

356

184

98

62

29

29

16

8.0

8.0

8.0

5.2

4.4

10

3.6

2.0

3.6

414

135

104

104

62

36

29

29

29

29

617

427

264

Sept.

142

52

29

16

12

992

1,310

1,240

510

230

123

87

76

149

76

66

57

32

26

16

22

14

10

6.0

6.0

3.6

2.0

2.0

1.6

1.6

NOTE. Mean daily gage height, in feet, on days when stage was beyond limits of rating curve as follows: 

June 19,10.06; June 21, 6.70; June 22, 8.43. No gage-height record Mar. 1-4; discharge interpolated.
68 SURFACE WATEB SUPPLY, 1926, PABT VIII

Monthly discharge of Clear Fork of Brazos River at Crystal Falls, Tex., for the year 

ending September SO, 1926

Month

November..... ____ __ . _

January _____ . _ ___ . ..........................

February........ __ ___ _ . . ...

March. _____________________ . ..........

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

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

June. _________ ___ . _____ . . . ........

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

August __ . _ .- __ . ____ .. - - . . _ .

September __________ _. _____ __ ........

Discharge in second-feet

Maximum

1,850 

550 

29 

62 

5.2 

762 

2,600 

1,390

1,390 

617 

1,310

Minimum

36 

12 

5.2 

3.6 

2.0 

.0 

22 

8.0 

5.2 

22 

2.0 

1.6

Mean

394 

51.0 

11.3 

9.38 

3.40 

96.4 

480 

295

198 

125 

177

Run-off in

acre-feet

24,200 

3,030

695 

577 

189 

5,930 

28,600 

18,100

12,200 

7,680 

10,500

NORTH BOSQUE RIVER NEAR CLIFTON, TEX.

LOCATION. One-fourth mile above Gulf, Colorado & Santa Fe Railway bridge, 

1% miles northwest of Clifton, Bosque County, and 2 miles below confluence 

with Meridian Creek.

DRAINAGE AREA. 974 square miles (measured on topographic maps and base 

map of Texas).

RECORDS AVAILABLE. November 4, 1923, to September 30, 1926.

GAGE. Staff gage attached to trees on right bank; read by Belinda Swenson.

DISCHARGE MEASUREMENTS. Made from bridge or by wading.

CHANNEL AND CONTROL. Channel straight for 1 mile below and one-fifth mile 

above station. Bed and banks composed of sand and earth; permanent. 

Banks slightly wooded and subject to overflow at a stage of 17 feet. Two 

channels above gage height 17 feet and three above 20 feet. Concrete dam 

10 feet high, one-third mile below gage, is control to stage of 15 feet. Above 

this stage control is probably river channel; permanent.

EXTREMES OP DISCHARGE. Maximum stage during year, from graph drawn on 

basis of gage readings, 7.08 feet at 5.30 a. m. April 10 (discharge, 8,090 

second-feet); minimum stage, 0.58 foot at 5.54 p. m. October 12 (discharge, 

0.60 second-foot).

1924-1926: Maximum stage, 9.65 feet at 7 a. m. April 26, 1924 (discharge, 

12,100 second-feet); no flow June 25 and July 13-30, 1925.

DIVERSIONS. Railroad pumps about 100,000 gallons a 'day above dam and 

below gage.

REGULATION. None.

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

below 2,000 second-feet and poorly defined between 2,000 and 16,000 secondfeet. Gage read to hundredths twice daily. Daily discharge determined by 

applying mean daily gage height to rating table or, on days of considerable 

fluctuation in stage, by averaging discharge for intervals of a day, using 

gage-height graph based on daily gage readings. Records for low stages, 

fair; for high stages, poor.

The following discharge measurements were made:

January 12: Gage height, 1.01 feet; discharge, 2.85 second-feet.

July 9: Gage height, 1.64 feet; discharge, 2.40 second-feet.
BBAZOS RIVER BASIN 69

Daily discharge, in second-feet, of North Basque River near Clifton, Tex., for highwater periods in the years ending September SO, 1924 o,nd 1925

Date

1924 

Dec. 13....... .........

Mar. 13...............

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

Discharge

3,290

3,610

2,230

Date

1924 

"Mar 2fl

Apr. 26.... ...........

Discharge

2,380

5,980

Date

1925 

May 10-. ... 

Discharge

3,000

NOTE. Kecords for the above periods during 1924 not previously published because of lack of definitions 

of rating curve for high stage. Record for 1925 supersedes previous record.

Daily discharge, in second-feet, of North Basque River near Clifton' Tex., for the year 

ending September SO, 1926

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.

8.0

6.0

4 0

3.6

3.4

3.4

3.2

2.9

2.9

2.3

.9

.6

.7

.8

74

3,630

864

118

47

26

17

14

11

17

31

18

10

8.0

6.0

10

8.0

Nov.

6.0

3.4

3.4

3.2

3.7

251

1,560

684

128

KA

31

24

10

13

10

8.0

7.0

6.0

8.0

9.0

8.0

6.0

5.0

6.0 t^ n

3.7

3.2

3.2

3.0

3.4

Dec.

4.0

4.0

3 0

2.6

3.3

3.4

Q 7

3.7

3.4

1.8

1.2

1.2

1.0

.9

1.0

.7

.6

.8

1.3

2.2

3.2

3.7

3.7

3.6

2.6

2.7

3.4

3.6

3.3

4.0

Jan.

6.0

8.0

8.0

8.0

7.4

6.8

6.0

4.0

4 0

4.3

4.6

5.0

5.5

6.0

5.0

26

162

64

31

22

238

106

60

54

47

47

31

28

24

10

Feb.

14

13

12

10

10

8.0

8 n

8.0

8.0

8 n

7.0

6.0

6.0

6.0

6.0

5.0

4.0

5.0

6.0

4 0

3.4

3.4

3.2

3.4

3.3

3.7

3.2

Mar.

2.7

2.6

9 7

7.4

17

28

17

12

11

33

24

17

14

12

12

10

11

12

10

30

1 430

141

49

31

116

137

61

39

31

36

29

Apr.

28

24

24

10

19

76

Q1

346

c Ofifi

619

238

168

128

137

86

71

57

1 430

312

1,290

460

1CQ

128

97

79

71

May

71

fU

71

57

52

577

380

300

955

9 9^n

300

168

128

111

102

82

71

57

176

395

142

79

fid

49

41

36

34

29

24

24

330

June

QfU

102

CO

99J.

1,460

251

oo

CO

34

26

22

17

16

14

12

10

9.0

8.0

261

82

71

79

52

31

408

132

57

31

July

22

16

14

10

9.0

o n

84

286

OQO

128

98

30

117

93

41

26

19

12

18

775

232

312

183

118

86

57

39

24

17

Aug.

14

12

10

Q ft

8.0

8.0

6.0

6.0

<; n

5.0

4.0

4.0

4.0

4 0

3.7

2.9

2.2

1.6

1 ^

1.2

1.1

1.0

1.0

.9

38

17

10

7.0

6.0

4.0

Sept.

3.9

3.6

3.3

3.2

2.6

2.7

68

28

17

12

22

24

14

10

8.0

6.0

4.0

4.0

Q 7

3.4

4 0

5.0

4.0

3.7

3.7

3 0

3.3

3.0

2.7
70 SURFACE WATER SUPPLY, 1926, PART VIII

Monthly discharge of North Basque River near Clifton, Tex., for the years ending

September 30, 1924-1926

Month

1923-24 

November 4-30 _________________________

January.. _________________ . _________

February...- ___ ____ ... ________ ._ ___ ..

April.- . . .

May _____ ____ __ _ ______ ........

June. __ _. ___ ___ .... ______ _ _____

July , 

September- ______ _ __ . . __ ......

The period ___ . ________________ . ....

1924-25 

October. ________________________ _ .......

November.. ___________ __ __ ....

December _______ ____ ___ _____ .......

March. __ _______ _ _ .... . ._

June.. ___ _ _ __ ___ . . .. _ _ . ...

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

.September. ____ ______ . .

The year _________ _ ___ __________

1925-26

November..... ______ . .............................

December ___ ___ _ ...-. . __ .......

March. __ _____ ._ __ _ __ ___ . __ ..

July---. . . 

August ______ __________ . ___________

Discharge in second-feet

Maximum

272 

3,290 

750 

386 

3,610 

5,980 

1,410 

102 

16 

4.0 

14

4.0 

173 

12 

10 

21 

. 5.0 

3.3 

3,000 

133 

460 

643 

467

3,000

3,630 

1,560 

4.0 

238 

14 

1,430 

5,260 

2,230 

1,460 

775 

38 

641

5,260

Minimum

1.4 

44 

71 

49 

137 

106 

47 

13 

4.0 

1.6 

1.2

Mean

40.6 

310 

121 

117 

677 

397 

153 

32.6 

9.26 

2.92 

4.57

1.4 

2.9 

3.9 

3.9 

3.6 

2.4 

.2 

.6 

.0 

.0 

.4 

.1

.0

.6 

3.0 

.6 

4.0 

3.2 

2.6 

19 

24 

8.0 

8.0 

.9 

2.6

.6

2.80 

18.7 

6.19 

6.64 

6.33 

3.61 

1.26 

180 

13.0 

15.5 

62.8 

37.2

29.8

160 

95.9 

2.58 

35.1 

6.56 

76.9 

426 

232 

157 

103 

6.75 

30.6

111

Run-off ia 

,a,cre-feet

2,180 

19,100 

7,470 

6,710 

41,700 

23,600 

9,410 

1,940 

569 

179 

272

113,000

172 

 1, 110 

381 

408 

352 

222 

75 

11,100 

776 

952 

3,860 

2,210

21,600

9,820 

5,710 

158 

2, 160 

364 

4,730 

25,400 

14,300 

9,320 

6,350 

415 

1,820

80,500

SOUTH BOSQUE RIVER NEAR SPEEGIEVH1E, TEX.

LOCATION. At highway bridge half a mile below mouth of Hog Creek and 2 

miles south of Speegleville, McLennan County.

DRAINAGE AREA. 388 square miles (measured on topographic maps and base 

map of Texas).

KECORDS AVAILABLE. March 24, 1924, to September 30, 1926.

GAGE. Chain gage attached to upstream side of bridge; read, by W. W. Comer.

DISCHARGE MEASUREMENTS. Made from bridge or by wading.

CHANNEL AND CONTROL. Channel straight for 300 feet above and 750 feet 

below gage. Bed of sand and gravel; shifts. Right bank subject to overflow. Left bank lightly timbered and not subject to overflow. Control is 

gravel riffle 500 feet below gage; fairly permanent.

EXTREMES OF DISCHARGE. Maximum stage during year, from graph drawn 

from gage readings, 26.0 feet at 9 p. m. April 21 (discharge, about 38,400 

second-feet); no flow October 3-12.

1924-1926: Maximum stage, that of April 21, 1926; no flow during several 

periods.
BRAZOS RIVER BASIN 71

DIVEESIONS. None,

REGULATION. None.

ACCUKACY. Stage-discharge relation not permanent. Rating curve fairly well 

defined below 3,100 second-feet and extended above on the basis of one slope 

measurement made at a stage of 29.37 feet. Gage read to hundredths twice 

daily and oftener during floods. Daily discharge determined by shiftingcontrol method or, on days of considerable fluctuation in stage, by averaging 

discharge for intervals of a day, using gage-height graph based on daily gage 

readings. Records fair.

Discharge measurements oj South Bosque River near Speegleville, Tex., during the 

year ending September 80, 1926

Date

Oct. 27... ...

Nov. 24.........

Gage 

height

Feet 

4.23

4.52

Discharge

Sec.-ft. 

12.6

42.9

Date

Jan. 12-- . 

JulylO ....

Gage 

height

Feet 

4.27

4.77

Discharge

Sec.-ft. 

18.3

62

Date Gage 

height

Feet 

4.38

Discharge1

Sec.-ft. 

4.9

Daily discharge, in second-feet, of South Bosque River near Speegleville, Tex., for 

the year ending September 80, 1926

Day

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

2 ........

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

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

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

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

"I..... ......

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

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

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

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

12 

13 .

14. 

15 

ie. - -

17 

18. 

10

20 

21 

23 

25 

26 

27 

28 

30 

31 

Oct.

0.1

.1

0

0

0

0

0

0

0

0

0

0

179

221

14

2,600

76

18

11

8.2

6.7

5.8

4.9

4.6

223

00

8.5

7.0

8.5

7.9

Nov.

7.0

6.4

6.4

6.4

5.8

1,500

1,190

394

204

154

149

121

96

85

71

66

63

63

61

KK

46

44

41

43

dt

41

36

OK

35

Dec.

34

33

33

31

26

28

30

30

28

29

28

26

30

00

29

25

25

24

OQ

23

21

20

20

20

20

20

16

17

18

18

Jan.

20

48

48

35

30

25

23

23

20

20

20

19

18

18

18

489

760

238

184

168

348

278

208

218

294

384

384

289

241

Feb.

187

181

162

152

136

133

112

110

99

94

94

90

83

74

71

70

74

63

61

59

57

eo

KC

46

Mar.

44

43

44

67

202

112

94

4,090

QOQ

K.AA.

353

284

266

266

232

1,510

241

1,890

K1 Q

343

Q7Q

Apr.

390

358

284

258

232

214

241

184

178

4,770

fun

544

426

327

284

r)AZ

214

211

9,780

2 260

1,680

810

706

608

454

May

576

426

826

426

810

576

454

266

O4.Q

225

211

184

171

OfU

171

14.Q

133

128

114

101

09

85

70

76

71

June

470

85

71

105

85

63

56

50

46

40

so

36

34

on

28

26

28

44

OK

OA

QQK

251

46

101

OCC

110

81

69

68

July

64

63

58

58

55

55

52

944

172

61

79

OQO

55

41

34

34

Q9

30

on

965

416

203

63

34

22

25

22

on

15

Aug.

10

 9.9

11

12

12

10

11

9 6

9.2

11

8.5

7.3

7 9

7 Q

7 Q

6.7

6 4

6.1

6

K

6.1

4.9

5.5

5.5

5.5

4 9

6.7

6

K

*. 9

6.4

Sept,

6.1

5.&

4.3"

5 *

9

K

8.8

6.7

6.7

6.1

6.4

5.2

4.6

5.2-

5.2

5.2

5.2

4.6

4.6

4.9

4.6

3.7

2.5

1.9

2.3

2.8

2.5

5.8

5.5

NOTE. Discharge partly estimated or interpolated Feb. 21-23, June 5, 21, July 29, 31, Sept. 15 and 16.
72 SURFACE WATER SUPPLY, 1926, PART VIII

Monthly discharge of South Basque River near Speegleville, Tex., for the year ending

September 30, 1926

Month

February. ..... __ . ____________________

March. ______ _____ _______ . . . .

April..... . _...._ _.___..

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

June. _______ . ____________

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

The year _____________ _________

Discharge in second-feet

Maximum

2,600 

1,500 

34 

760 

187 

4,090 

9,780 

2,100 

470 

965 

12 

9.6

9, 780.

Minimum

0.0 

5.8 

16 

18 

46 

43 

178 

71 

26 

15 

4.9 

1.9

.0

Mean

111 

157 

25.1 

172 

93.6 

542 

972 

337 

94.5 

153 

7.81 

5.07

223

Run-off in

acre-feet

6,840 

9,360 

1,540 

10,500 

5,200 

33,300 

57,800 

20,700 

5,620 

9,440 

480 

302

161,000

IEON RIVER NEAR HAMILTON, TEX.

LOCATION. At St. Louis Southwestern Railway bridge 300 feet above HamiltonHico highway bridge, 3 miles below mouth of Bear Creek, and 6 miles north 

of Hamilton, Hamilton County.

DRAINAGE AREA. 1,900 square miles (measured on topographic maps and base 

map of Texas).

RECORDS AVAILABLE. January 7, 1925, to September 30, 1926.

GAGE. Chain gage attached to upstream guard rail of railroad bridge; read by 

J. T. Dehart.

DISCHARGE MEASUREMENTS. Made from railroad bridge or by wading.

CHANNEL AND CONTROL. Channel straight for one-fourth mile above and below 

gage. Bed composed of sandy clay and loam with some debris lodged in it; 

fairly permanent. Banks of main channel covered with heavy growth of 

brush and light timber; subject to overflow at stage of 20 feet. Control is 

gravel and cobblestone riffle 1 mile below gage; shifts.

EXTREMES OP DISCHARGE. Maximum stage recorded during year, 17.0 feet at 

10 a. m. April 12 (discharge not determined); no flow October 3-15.

1925-1926: Maximum stage, that of April 12, 1926; no flow July 19 to 

August 2 and September 4r-12, 1925.

DIVERSIONS. None of importance.

RE GTJL ATI ON. None.

ACCURACY. Stage-discharge relation not permanent. Curve well defined below 

1,640 second-feet but does not cover range of stage for the year. Gage read 

to Jiundredths once daily. Daily discharge, determined by shifting control 

method or, on days of considerable fluctuation in stage, by averaging discharge for intervals of a day, using gage-height graph based on daily gage 

readings. Records fair.

The following discharge measurements were made:

January 13, 1926: Gage height, 2.66 feet; discharge, 6.8 second-feet.

July 9, 1926: Gage height, 2.68 feet; discharge, 15.1 second-feet.
BRAZOS RIVER BASIN 73

Daily discharge, in second-feet, of Lean River near Hamilton, Tex., for the year ending

September SO, 1926

Day

1. . .....

2 ...... .

3..........

4..........

5... ___ ..

6. ......

7..........

8 _____ .

9 .......

10 ...... .

11 .

12..........

13..........

14..........

15 .

16 .....

17 . ......

18 .......

19..........

20... .......

21 .......

22 .......

23 .......

24.. ........

25 .

26. 

27. 

28.. ........

29..........

30 .....

31 

Oct.

0.4

.1

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

1,210

1,080

961

678

296

154

88

50

14

5.5

3.9

2.5

2.5

.8

.5

.2

Nov.

' 0.7

1.1

1.4

1.4

1.4

6.5

574

678

847

772

295

147

71

67

44

36

7.8

5.2

4.3

2.9

2.4

2.9

 2 9

2.8

3.5

3.5

3.3

3.0

3.3

Dec.

3.3

4.0

3.8

4.0

4.0

4.0

4.5

4.5

4.5

4.0

5.0

6.2

7.8

7.8

7.8

7.8

12

12

12

12

12

12

12

12

13

13

12

12

11

11

Jan.

11

11

11

9 2

10

12

12

' 1110

10

8.3

6.0

7.0

7.0

6.2

7.8

14

140

195

104

59

92

111

158

147

136

75

63

45

45

41

Feb.

19

16

13

7.8

6.2

5.8

5.2

5.2

5.2

4.3

3.9

3.9

3.6

3.6

3.6

3.6

3.6

3.6

3.4

3.4

3.4

3.6

3.6

3.6

3.4

3.4

3.4

3.4

Mar.

3.6

3.9

4.3

7.0

7.0

7.8

7.8

8.8

8.8

7.8

6.2

5.2

4.8

4.3

4.3

4.3

4.3

4.3

4.8

4.8

5.2

6.2

6.2

7.0

8.8

43

16

7.8

7.0

7.0

7.0

Apr.

7.8

7.8

41

28

23

23

7.8

91

92

1,810

722

369

249

208

208

296

659

1,260

1,000

1,760

1,480

1,050

569

296

182

158

May

136

341

549

772

1,340

1,360

697

332

221

170

398

348

158

106

79

63

57

53

118

136

410

652

626

338

195

136

84

67

60

55

44

June

39

174

264

854

678

549

524

600

375

195

111

92

92

63

92

136

126

182

208

469

706

923

524

176

136

930

344

147

61

44

July

35

32

25

21

18

17

17

15

15

12

69

464

244

182

221

195

147

82

45

33

29

151

972

1,220

1,160

988

600

350

221

296

237

Aug.

86

41

29

28

24

17

10

10

10

10

10

10

9.2

8.3

8.3

6.5

5.5

5.5

5.5

5.5

5.0

5.0

5.0

17.

8.3

6.0

35

55

13

9.2

.5.5

Sept.

5.0

4.5

4.5

4.5

4.5

856

280

40

68

88

79

79

24

24

11

7.0

6.2

5.2

4.8

2.9

2.9

2.7

2.4

2.4

2.4

1.9

1.9

1.9

1.1

1.1

NOTE. Gage height in feet on days when discharge was beyond limits of rating curve as follows: Apr. 10 

10.40; Apr. 11,14.90; Apr. 12, 16.65; Apr. 13, 14.50.

Monthly discharge of Leon River near Hamilton, Tex., for the year ending September

SO, 1926

Month

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

Discharge in second-feet

Maximum

1,210 

847 

13 

195 

19 

43 

* 1,360 

930 

1,220 

86 

856

Minimum

0.0

.7 

3.3 

6.0 

3.4 

3.6 

44 

39 

12 

5.0 

1.1

Mean

147 

120 

8.45 

50.8 

5.42 

7.59 

326 

327 

262 

16.2 

54.0

Run-off in 

acre-feet

9,020 

7,130 

520 

3,120 

301 

467 

20,000 

19,500 

16,100 

998 

3,210

IEON RIVER WEAR BEITOW, TEX.

LOCATION. 100 feet below bridge of Southwestern Traction Co., one-fourth

mile above Temple-Belton highway bridge, 2 miles east of Belton, Bell

County, and 2 miles above mouth of Nolan Creek. 

DRAINAGE ABBA. 3,550 square miles (measured on topographic maps and base

map of Texas).

RECORDS AVAILABLE. October 1, 1923, to September 30, 1926. 

GAGE. Vertical staff on left bank attached to pump intake masonry; read by

W. I. Massey. 

DISCHARGE MEASUREMENTS. Made from highway bridge or by wading.
74 SURFACE WATER SUPPLY, 1926, PART VIII

CHANNEL AND CONTROL. Bad composed of silt and mud and overlying decomposed rock. Banks of earth, fringed with trees at low water's edge and 

subject to overflow at extremely high stages. Low-water control is concrete and masonry dam one-fourth mile below gage; permanent. Highwater control is section of channel.

EXTREMES OP DISCHARGE. Maximum stage recorded during year, 12.50 feet at 

3 a. m. April 22 (discharge, 20,100 second-feet); minimum stage, 2.39 feet 

from 8 a. m. October 10 to 8 a. m. October 12 (discharge, 4.6 second-feet).

1924-1926: Maximum stage, that of April 22, 1926; no flow for several 

periods in 1925.

DIVERSIONS. Several small pumping plants above; amount diverted not known.

REGULATION. None.

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

below 4,500 second-feet, poorly defined from 4,500 to 16,000 second-feet, and 

extended above. Gage read to hundredths twice daily and oftener during 

floods. Daily discharge determined by applying mean daily gage height to 

rating table or, on days of considerable fluctuation in stage, by averaging 

discharge for intervals of a day, using gage-height graph based on daily gage 

readings. Records fair.

Discharge measurements of Leon River near Belton, Tex., during the year ending

September 30, 1926

Date

Oct. 26 

Do... 

Gage 

height

Feet

9.90

9.76

Discharge

Sec.-ft. 

841

15,600

14,000

11, 400

3,900

Date

Apr. 12 .

Do.. .......

Apr. 13.........

Do .

Gage 

height

Feet

6.33

6.32

6.20

Discharge

Sec.-ft.

4; 270

4,310

4,140

4,140

Date

Do 

Apr. 16 

Apr. 18- .. _

July 13 .... .

Gage 

height

Feet 

6.30

6.40

6.44

4.69

2.94

Discharge

Sec.-ft. 

4,280

4,320

4,290

1,860

218

Daily discharge, in second-feet, of Leon River near Belton, Tex., for the year ending

September 30, 1926

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.

176

29

26

20

14

11

8.6

6.8

5.0

4.6

4.6

5.0

24

494

129

4,830

1,360

1,380

692

1,260

800

605

336

176

552

518

68

53

47

Nov.

35

29

29

29

177

12,900

4,130

2,030

1,070

710

420

196

152

140

129

97

87

68

OA

59

59

56

Dec.

53

47

44

41

35

35

35

35

OK

OK

35

35

35

41

41

41

41

41

41

38

OC

32

32

29

Jan.

29

29

106

112

87

78

64

53

47

9Q

23

519

605

420

249

321

820

420

336

ceo

469

428

389

351

Feb.

222

189

176

157

157

152

1 ^9

146

140

134

117

92

68

KQ

56

56

KO

KQ

50

en

47

44

Mar.

44

44

44

59

92

157

292

285

271

6,420

2,610

1 4.QO

800

605

477

436

436

420

710

CAK

366

2

f\Af\

1 QQH

1,070

710

640

2,230

1,260

Apr.

675

631

544

4fl9

570

527

485

9 Q8fl

3 840

4,030

4,030

1,790

1,020

5,440

11 900

6,970

8,410

5,770

2 700

3 f\f)f\

3 000

2,160

1,460

May

1,160

1,070

1,120

1,020

890

4,340

3,650

2,700

1 ZJ\f\

1 260

980

800

890

QOK

710

587

535

535

Klfl

485

460

K7fl

QAA

QQA

C7K

477

405

343

292

June

366

235

256

235

412

605

845

845

7KK

7KK

358

278

176

152

117

189

242

1 Q4.fl

2

K/JA

1,160

QOK

980

CQfl

552

890

605

July

343

264

215

189

112

97

87

208

K7fl

son

396

752

800

373

299

1,370

2 ion

3,180

1,120

1 260

1,210

1,120

890

452

Aug.

343

278

235

182

106

87

78

68

KQ

Kfl

35

32

29

28

26

24

22

18

17

17

17

16

14

14

23

Sept.

9fl

17

17

17

17

16

16

14

A-l R

14070

47

35

68

68

38

28

26

oq

20

17

16

14

1 o

1 3

iq

12
BRAZOS RIVER BASIN 75

Monthly discharge of Leon River near Belton, Tex., for the year ending September

80, 1926

Month

July 

Discharge in second-feet

Maximum

4,830 

12,900 

53 

1,660 

299 

6,420 

11,900 

4,340 

2,560 

3,180 

343 

415

12,900

Minimum

4.6 

29 

29 

23 

44 

44 

402 

292 

117 

87 

14 

12

4.6

Mean

467 

841 

38.5 

325 

115 

882 

3,290 

1,080 

628 

683 

66.6 

43.2

704

Run-off in 

acre-feet

28,700 

50,000 

2,370 

20,000 

6,400 

54,200 

196,000 

66,400 

37,400 

42,000 

4,100 

2,570

510,000

LITTLE RIVER NEAR LITTLE RIVER, TEX.

LOCATION. At Missouri-Kansas-Texas Railroad bridge 150 feet west of BartlettTemple highway, 2 miles south of Little River, Bell County, and 4J4 miles 

below confluence of Leon and Lampasas Rivers.

DRAINAGE AREA. 5,250 square miles (measured on topographic maps and 

base map of Texas).

RECORDS AVAILABLE. October 5, 1923, to September 30, 1926.

GAGE. Chain gage attached to downstream guardrail of middle span of bridge; 

read by A. J. Lanham.

DISCHARGE MEASUREMENTS. Made from railroad bridge, fiom highway bridge, 

or by wading.

CHANNEL AND CONTROL. Bed composed of mud and silt, overlying decomposed rock; shifts. Banks covered with brush and light timber; subject to overflow. Channel straight for 250 feet above and 150 feet below 

gage. Control is small brushy island 150 feet below gage; shifts. This 

island is submerged at high stages, when control is probably section of 

channel.

EXTREMES OP DISCHARGE. Maximum stage recorded during year, 41.3 feet 

at 8 a. m. April 22 (discharge, 24,100 second-feet); minimum stage, 3.60 

feet October 8 (discharge, 22 second-feet).

1924-1926: Maximum stage recorded, that of April 22, 1926; minimum 

stage, 3.26 feet at 2.50 p. m. August 12, 1925 (discharge, 8.9 second-feet).

DIVERSIONS. Several small diversions above station; amount not known.

REGULATION. Dam of Temple waterworks on Leon River may regulate flow 

at extremely low stages.

ACCURACY. Stage-discharge relation not permanent. Rating curve fairly well 

defined below 18,000 second-feet and extended above. Gage read to 

hundredths twice daily and oftener during floods. Daily discharge 

determined by shifting-control method or, on days of considerable fluctuation 

in stage, by averaging discharge for intervals of a day, using gage-height 

graph based on daily gage readings. Records poor.

96272 30 6
76 SURFACE WATER SUPPLY, 1926, PART VIII

Discharge measurements of Little River near Little River, Tex., during the year 

ending September 30, 1926

Date

Oct. 17 

Do 

Oct. 28. 

Nov. 7.. 

Do .

Nov. 23 

Apr. 11 .

Gage

Feet 

32.60

30.00

6.11

38.61

4.65

35.52

Discharge

Sec.-ft. 

8,480

474

 17, 600

15,100

179

12,200

Date

Apr. 12 

Apr. 13. .....

A r*r 14.

Apr. 15 ..... .

Apr. 16 

Apr. 18. 

Gage 

height

Feet 

25.40

21.97

21.18

21.38

22.15

16.21

15.42

Discharge

Sec.-ft. 

6,150

5,120

4,870

5,270

5,450

3,520

3,370

Date

Apr. 18 

Apr. 19 

Do. -

Apr. 20 

July 13 

Gage 

height

Feet 

14.84

11.85

11.41

10.65

5.90

Discharge

See.-ft. 

3,330

2,090

1,870

1,700

466

« Surface velocities observed for part of measurement and coefficient used to reduce to mean velocities. 0

Daily discharge, in second-feet, of Little River near Little River, Tex., for the year 

ending September 30, 1926

Day

1 .... 

2. ___

3 

4 

5 

6 

T. .............

8 

9 

10 

11 

19

13 

14 

15 

16 

17 

18 

19 

20.- 

21 

22 

23 

24... _ .. ...

25 

26 

27 _________

28 

29 

30 

31 -

Oct.

72

67

60

54

39

29

26

22

24

36

30

25

44

54

297

3,450

8,150

2,790

948

1,090

1,420

864

475

452

1,050

1,690

948

498

406

266

178

Nov.

136

114

121

102

96

11,000

18,200

6,740

2,060

976

920

836

696

646

596

475

452

429

362

266

245

225

206

187

178

169

144

136

136

Dec.

128

128

128

128

108

102

96

Qfi

96

96

96

OR

96

102

102

96

102

96

90

90

88

85

85

83

83

80

78

73

68

66

71

Jan.

73

83

169

215

225

160

144

144

136

114

102

90

102

102

102

116 4 Mn

1,570

1,090

696

498

780

1,280

1,120

1 140

948

fidfi

546

596

Feb.

596

571

475

429

406

362

340

340

340

297

297

276

255

266

266

255

245

235

235

206

206

187

178

169

169

Mar.

160

160

160

152

160

187

362

671

4,700

9,480

3,790

1,690

1,260

1,090

920

QOfi

976

976

1 030

976

920

QOA

808

2,120

3,820

1 7sft

1,570

2,410

3,490

Apr.

2,110

1,690

1,370

1,200

1,090

1,090

1,060

1,230

10,200

16,100

6,300

5,140

4,870

4,900

5,080

4,870

1,960

1 fiQft

7,520

91 7nn

9 660

8 980

7^8JO

5,410

4 450

4,360

q 7Qft

s fun

May

2,380

2,500

3,100

2,530

2,140

4,210

6,250

4 660

3^910

4,450

2,920

2

oqn

1,750

1,660

1,750

1,480

1,280

1,140

1,170

1 140

1,120

1 030

948

SQ9

1 140

1 93ft

SQ9

671

596

June

571

646

546

521

1,340

1,360

836

1,120

920

836

780

864

646

498

452

571

362

340

318

297

452

i ssft

o 7QA

2 680

i i<ift

976

808

976

July

521

406

340

297

255

235

225

225

206

1,040

2,320

821

406

521

746

976

596

429

362

384

318

2 OQft

8,610

4,830

2

Ef?A

1,720

1,370

1,260

1,120

752

Aug.

646

452

452

362

297

255

225

196

187

178

169

160

152

144

144

144

128

121

121

108

102

1ft9

96

96

96

Qfi

96

1ft9

108

114

114

Sept.

121

128

136

144

136

128

144

96

99

724

340

225

160

136

121

114

102

128

121

114

108

90

78

73

71

68

65

63

59

57

Monthly discharge of Little River near Little River, ,Tex., for the year ending

September 30, 1926

Month

October __ . _______________ . _______

December.. __ ____

February.. . _______________ __ ... .

May ________ . ______ __ _

Tuly _._.. . .

August... ________ 

September.- _ _ ... __ . .

The year _ ....._.... ...

Dischapge in second-feet

Maximum

8,150 

18,200 

128 

4,440 

596 

9,480 

21,700 

6,250 

3,790 

8,610 

646 

724

21,700

Minimum

22 

96 

66 

73 

169 

152 

1,060 

596 

297 

206 

96 

57

22

Mean

824 

1,570 

94.6 

629 

294 

1,630 

5,100 

2,040 

933 

1,210 

186 

138

1,220

Run-off in 

acre-feet

50,700 

93,200 

5,820 

38,700 

16,300 

99,900 

304,000 

125,000 

55,500 

74,700 

11,400 

8,230

883,000
BEAZOS RIVER BASIN 77

LITTLE RIVER AT CAMEROff, TEX.

XOCATION. At new highway bridge at Cameron-Rockdale highway crossing, 

one-fourth mile below old McCowan Bridge, three-fourths mile above 

Gulf, Colorado & Santa Fe Railway bridge, 2 miles southeast of Cameron, 

and 8 miles below mouth of San Gabriel River.

DRAINAGE AREA. 7,030 square miles (measured on topographic maps, base 

maps of Texas, and United States Army progressive military maps).

RECORDS AVAILABLE. November 1, 1916, to September 30, 1926.

-GAGE. Chain gage attached to upstream handrail of bridge; read by Tracy 

Hobson. Prior to April 9 gage was one-fourth mile upstream and at a 

different datum.

DISCHARGE MEASUREMENTS. Made from highway bridge, from railroad bridge, 

or by wading.

^CHANNEL AND CONTROL. Channel straight for 400 feet above and 200 feet 

below gage. Bed of sand, gravel, and clay; fairly permanent. Right bank 

partly wooded and not subject to overflow; left bank of clay, sand, and 

loam, slightly wooded, and subject to overflow above gage height 30 feet. 

During extremely high stages on Brazos River backwater may reach gage.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 36.98 feet 

at 12.35 p. m. April 22 (discharge, 71,300 second-feet); minimum stage, 

3.30 feet from 8.10 a. m. to 5 p. m. October 8 and at 6.10 p. m. October 10 

(discharge, 77 second-feet).

1917-1926: Maximum stage recorded, 49.5 feet at 2.30 p. m. September 

10, 1921 (discharge, 647,000 second-feet, determined by slope method); 

minimum discharge, 2.6 second-feet at 7 a. m. September 3, 5, and 7, 1918.

DIVERSIONS. Numerous small diversions are made for irrigation and municipal 

uses, but such diversions have little effect on flow at station, except during 

extremely low stages. Records of the Board of Water Engineers for State of 

Texas show that about 2,500 acres has been declared irrigated above station. 

No diversions of importance below station. During time of low flow water 

pumped by Cameron Power & Light Co. will affect flow at this station.

REGULATION. Slight effect by pumping for city of Cameron.

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

which are well defined for all stages. Gage read to hundredths twice daily. 

Daily discharge determined by applying mean daily gage height to rating 

table or, on days of considerable fluctuation in stage, by averaging discharge 

for intervals of a day, using gage-height graph based on daily gage readings, 

except as noted in footnote to table of daily discharge. Records fair.

Discharge measurements of Little River at Cameron, Tex., during the year ending

September SO, 1926

Date

Oct. 18. ........

Oct. 24.........

Nov. 7. ._-.-

Nov. 8...... .

Nov. 24.... __

Apr. 9. _ ......

Gage 

height

Feet 

25.71

6.14

32.33

32.62

4.77

«9.25

Discharge

Sec.-ft. 

10,900

898

"19, 800

"18, 800

414

1,950

Date

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

Apr. 23... 

Apr. 24 ...

Apr. 26 ......

Apr. 27.. .......

Gage 

height

Feet 

36.85

35.31

34.60

34.05

32.80

27.30

Discharge

Sec.-ft. 

* 67, 900

Ml, 200

628,700

620,600

* 15, 000

* 9, 750

Date

Apr. 27. . .

Do.. 

July 13.. ....

July 14. ........

Gage 

height

Feet 

25.82

18.21

18.10

17.48

8.23

7.36

Discharge

Sec.-ft. 

9,590

5,930

5,830

5,400

1,400

1,160

0 Surface velocities observed for part of measurement and coefficient used to reduce to mean velocities and 

measurement partly estimated.

6 Surface velocities observed for part of measurement and coefficient used to reduce to mean velocities.

 Gage at new location and to different datum. New datum 1.56 lower than previous datum at McCowan 

Bridge. New gage reads 9.25 feet when the old gage reads 8.72 feet.

d Measurement by float method.
78 SURFACE WAT^}R SUPPLY, 1926, PART VIII

Daily discharge, in second-feet, of Little River at Gamer on, Tex., for the year ending

September 30, 1926

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.

251

304

202

170

138

112

90

77

84

93

172

251

2,660

10, 100

10, 200

5,720

9,430

10, 400

2,190

1,380

1,420

1,030

878

953

1,260

2,070

1,420

841

549

584

Nov.

444

304

264

304

4,340

11,400

16, 100

18, 400

16,600

8,200

2,530

1,540

1,460

1,420

1,170

915

767

656

549

515

467

419

419

389

389

374

360

346

Dec.

332

332

318

318

304

297

290

290

277

277

277

277

277

277

277

277

277

277

270

264

251

251

244

238

226

226

214

914

Jan.

241

332

1,680

1,060

515

419

389

346

332

311

290

290

277

277

264

290

6,970

17, 200

8,330

2,230

1,980

1,980

1,860

1,700

1,700

1,620

1,500

1 400

Feb.

1,300

1,180

1,030

953

878

841

804

767

730

coo

638

620

584

KQA

584

*vdQ

KAQ

532

482

482

482

482

466

Mar.

450

419

419

450

450

515

586

656

730

3,730

10 7ftfi

13,100

4,170

1,900

1,860

1,980

2,150

2

1QA

6,760

6,190

3,100

2,440

3,420

5,770

3,960

2,620

5,420

9 fl4ft

Apr.

7,040

3,920

2,750

2,320

2,070

1,980

2,110

2,440

2,020

3,460

8,670

12,700

8,510

6,190

6,140

3,830

6,850

54 400

47,000

31,700

22,300

15,200

1ft ^tftft

7,450

6,040

5,430

May

4,960

6,330

7,930

7 QSfl

4,350

7,310

15,900

15,900

8,060

5,010

4,350

3,210

2,950

2,900

2,400

2,990

2,440

2,230

1,980

1,810

1,770

1,900

2,020

1,690

1,480

June

1,310

2,270

1,690

3,560

1,730

1,560

1 RAf)

1,520

1,480

1,310

1,070

886

784

886

754

634

634

1,820

4,210

4,040

2,060

1,560

1,430

1,270

992

July

1,270

886

694

610

A.*!**

475

427

427

403

2,110

2,150

1,310

1,070

754

580

920

9 ft9ft

4,540

7,710

7,400

4,300

9 97ft

1,900

1,770

1,600

1,480

Aug.

1 200

694

KQfl

451

403

369

335

335

291

280

280

258

248

238

997

227

216

196

206

216

227

Sept.

196

238

206

206

216

206

664

379

291

248

216

216

227

227

206

185

164

154

146

143

140

140

140

140

NOTE. Discharge interpolated or partly estimated Oct. 4,11, 25, Nov. 1,15, 22, 29, Dec. 6,13, 20, 25, 27, 

Jan. 10, 31, Feb. 7, 14, 21, 28, Mar. 7, Apr. 28, June 20, July 4, 11-23, Aug. 1, 8, 15, 22, 29, Sept. 5, 26.

Monthly discharge of Little River at Cameron, Tex., for the year ending September

Month

July -- -- 

Discharge in second-feet

Maximum

10,400 

18, 400 

332 

17,200 

1,300 

13, 100 

54,400 

15, 900 

4,210 

7,710 

1,200 

664

54, 400

Minimum

77 

264 

214 

214 

466 

419 

1,980 

1,310 

634 

379 

196 

140

77

Mean

2,310 

3,070 

272 

2,010 

689 

3,560 

10,400 

4,460 

1,620 

1,710 

349 

220

2,560

Run-off in 

acre-feet

142, 000 

183, 000 

16,700 

123, 000 

38,300 

219, 000 

621, 000 

274, 000 

96,100 

105, 000 

21,500 

13,100

1, 850, 000

IAMPASAS RIVER AT YOUNGSPORT, TEX.

LOCATION. Half a mile northeast of Youngsport, Bell County, and 2% miles

below mouth of Rocky Creek. 

DRAINAGE AREA. 1,240 square miles (measured on topographic maps and base

map of Texas).

RECORDS AVAILABLE. February 5, 1924, to September 30, 1926. 

GAGE. Combined vertical and inclined staff on left bank 500 feet above steel

highway bridge; read by Joel Ray or L. J. Henderson.
BKAZOS RIVER BASIN 79

DISCHARGE MEASUREMENTS. Made from highway bridge or by wading.

CHANNEL AND CONTROL. Channel straight for half a mile above and below 

station. Bed of rock; permanent. Right bank of rock, overlain by clay, 

covered with light timber and not subject to overflow. Left bank covered 

with light timber and subject to overflow at extremely high stages. Control 

for low and medium stages is rock shoal 50 feet below gage; permanent. 

High-stage control is indefinite.

EXTREMES OP DISCHARGE. Maximum stage recorded during year, 22.0 feet at 

9 a. m. November 6 (discharge not determined); minimum stage, 2.68 feet 

October 9-10 (discharge, 4.8 second-feet).

1924^1926: Maximum stage recorded, that of November 6, 1926; no flow 

July 17 to August 18, 1925.

DIVERSIONS. Small amount diverted for municipal uses.

REGULATION. None.

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

below 2,000 second-feet and poorly denned from 2,000 to 6,200 second-feet 

but does not cover range of stage for the year. Gage read to hundredths 

twice daily and oftener during floods. Daily discharge determined by applying mean daily gage height to rating table or, on days of considerable fluctuation in stage, by averaging discharge for intervals of a day, using gage-height 

graph based on daily gage readings. Records fair.

The following discharge measurements were made: 

October 26: Gage height, 3.50 feet; discharge, 236 second-feet. 

November 6: Gage height, 8.37 feet; discharge, 6,100 second-feet. 

July 12: Gage height, 3.10 feet; discharge, 73 second-feet.

Daily discharge, in second-feet, of Lampasas River at Youngsport, Tex., for the year 

ending September 30, 1926

Day

I..... ...... ..

2

3 . .........

4 _ ----------

5

6. .... ... -

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

8. .........

9. ... - -

10 - 

11. 

19

13.... ......

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

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

16. 

17. 

18. .. ..

19 . 

20 

21 

22 .........

23 

24 

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

26 

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

28 . ........

29 ..........

30 

31 

Oct.

14

13

9.2

8.0

6.2

6.2

5.6

5.0

4.8

4.8

5.0

5.0

26

1,050

859

497

163

81

47

38

9Q

22

21

1,020

301

94

36

29

27

Nov.

24

91

21

17

19

1,730

800

268

180

208

158

130

118

101

88

81

75

70

65

65

65

59

59

54

54

54

49

An

Dec.

59

59

59

54

54

54

49

49

49

45

45

45

49

49

49

49

49

49

49

49

49

49

49

49

49

49

49

49

49

49

49

Jan.

49

88

88

88

81

75

65

59

54

54

KA

54

54

4.Q

62

454

213

158

145

163

onn

208

208

208

189

189

189

189

171

Feb.

163

145

137

137

126

122

122

115

115

115

107

104

101

101

101

97

94

88

85

78

75

70

70

70

Mar.'

70

70

70

70

122

137

154

199

163

582

449

417

406

373

320

310

268

310

9QQ

258

258

838

532

441

1,180

Apr.

560

532

476

444

417

503

476

444

1,540

770

770

877

800

708

617

663

9 AQA

1,460

1,460

1,360

1,110

877

700

648

648

May

617

1,690

838

1,030

739

1,860

1,030

739

678

1,740

1,120

737

560

449

503

427

390

363

363

476

352

9QQ

268

247

208

199

171

154

141

208

June

185

154

130

1,110

737

277

171

141

208

199

185

163

163

376

336

232

163

199

154

130

122

807

292

154

154

130

101

91

July

85

78

67

65

62

59

54

52

534

134

122

81

57

54

282

118

94

65

 57

52

40

9 9jtO

1,390

232

154

81

KQ

101

Aug.

70

57

52

47

42

40

38

36

34

29

22

19

16

13

10

9.8

9.2

8.6

8.6

8.0

7.4

7.4

7.4

7.4

7.4

7.4

6.2

27

f)K

6.8

Sept.

6.2

6.2

6.2

5.6

9.2

49

45

38

31

22

17

17

17

17

16

14

14

14

14

14

14

14

14

13

11

11

11

10

9.8

9.8

NOTE. Gage heiglit in feet for days when discharge was beyond limits of rating curve: Oct. 16,8.92; Nov. 

6, 12.79; March 10, 6.66; Apr. 10, 11.22; Apr. 21, 8.28; July 22, 8.14.
80 SURFACE WATER SUPPLY, 1926, PART VIII

Monthly discharge of Lampasas River at Youngsport, Tex., for the year ending

September SO, 1926

Month

February __ . ______________________ ..

AprU.. .............................................

June. ____ . -- .-.-.-._._.____________..._-_-_-.

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

September...- _______________________

Discharge in second-feet

Maximum

59 

454 

163

1,860 

2,120

70 

49

Minimum

4.8 

17 

45 

49 

70 

70 

417 

141 

91 

40 

6.2 

5.6

Mean

50.1 

136 

105

607 

317

22.1 

16.3

Run-off in 

acre-feet

3,080 

8,33fr 

5,820

37,300 

18,800

1,360 

972

SAN GABRIEL RIVER AT CIECLEVILLE, TEX.

LOCATION. At bridge on Meridian Highway between Taylor and Granger, half" 

a mile southeast of Circleville, Williamson County, half a mile above 

Missouri-Kansas-Texas Railroad bridge, and 7 miles above mouth of Williamson Creek.

DRAINAGE AREA. 602 square miles (measured on topographic maps and basemap of Texas).

RECORDS AVAILABLE. February 1, 1924, to September 30, 1926.

GAGE. Chain gage attached to upstream rail of bridge; read by Van P. Slagle.

DISCHARGE MEASUREMENTS. Made from highway bridge, from railroad bridge,, 

or by wading.

CHANNEL AND CONTROL. Bed of mud and gravel; shifting. One channel at 

all stages. Channel curved above and below gage. Banks covered withbrush and light timber; subject to overflow at extremely high stages, at 

which the highway bridge is completely surrounded by water. Controlformed by gravel riffle 100 feet below gage; shifts.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 28.70 feet at 

3.45 p. m. April 21 (discharge not determined); minimum discharge, 4.0- 

second-feet October 7 and 8.

1924-1926: Maximum stage recorded, that of April 21, 1926; no flowSeptember 5, 6, 8, and 11, 1924.

DIVERSIONS. Several small diversions above gage for municipal use; amount 

not known.

RE GULATION . None.

ACCURACY. Stage-discharge relation not permanent. Rating curve fairlv welldefined below 1,100 second-feet and poorly defined from 1,100 to 5,500- 

second-feet but does not cover the range of stage for the year. Gage read 

to hundredth^ twice daily^and oftener during floods. Daily discharge determined by shifting-control method or, on days of considerable fluctuation, 

in stage, by averaging discharge for intervals of a day, using gage-height 

graph based on daily gage readings. Records poor.

Discharge measurements of San Gabriel River at Circleville, Tex., during the yearending September SO, 1926

Date

Oct. 16 

Do 

Gage 

height

Feet 

14.41

12.30

Discharge

Sec.-ft. 

5.370

3,530

Date

Oct. 28. 

Nov. 23.. 

Gage 

height

Feet 

2.66

2.90

Discharge

Sec.-ft. 

45.4

a 77

Date

Mar. 30 .

July 14 

Gage 

height

Feet 

8.84

3.20

Discharge'

Sec.-ft. 

2,2101

13T

Gage height probably too low, owing to action of wind on chain gage.
BEAZOS EIVEE BASIN 81

Daily discharge, in second-feet, of San Gabriel River at Circleville, Tex., for the year 

ending September SO, 1926

Day

1 .

2.-..-.. ...

3 _ .

4 ..........

5 ..........

6_. _ . .

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

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

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

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

11.-.----.....

12.........-._.

13...--..-..

14 

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

16 

17. .........

18. ........

19 

20..... .

21 

22 .

23. 

24 

25 

26 

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

28 ........

29 

30 .......

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

Oct.

11

38

17

9.4

6.0

5.0

4.0

4.0

82

27

12 460-

792

1,270

KA{\

114

69

51

41

35

32

39

311

159

69

49

4949 -

37

Nov.

37

OO

^u

34

88

1,110

425

252

228

145

123

106

98

<u

QA

94

85

79

74

76

72

74

74

69

fiQ

64

61

Dec.

61

<;o

58

52

49

47

47

47

47

4Q

. 48

47

47

4Q

47

47

47

45

45

45

44

44

46

44

43

40

40

38

38

40

Jan.

89

108

94

74

50

50

47

47

i<;

41

45

44

44

480

340

315

420

365

315

315

340

390

365

328

315

302

290

Feb.

265

OKO

240

228

998

228

O1 o

1QO

204

204

204

189

189

189

170

170

165

156

152

145

143

Mar.

143

138

138

163

170

204

156

1159

570

390

328

290

9Qn

290

OftO

328

302

302

315'

290

265

9Af\

1,420

590

340

328

328

1,570

570

Apr.

420

365

o^n

328

315

OftO

302

278

978

1,090

KAfl

340

302

302

340

302

978

265

396

2,430

1,200

1,910

600

KA(\

Klft

May

1,530

1,950

am

630

480

785

1,870

OKK

flQfi

570

KAt\

^1ft

480

450

420

QQft

390

660

420

son

340

QOQ

315

302

290

278

265

252

252

252

June

240

228

228

340

216

204

193

182

182

165

170

158

154

140

14i)

140 "ME

132

129

129

754

M9

193

149

123

114

104

98

July

98

94

Q1

89

89

so

85

70

76

723

161

 204

134

01

78

70

fiQ

65

65

890

582

284

132

98

83

7Q

70

61

78

Aug.

170

100

72

65

55

51

49

49

4Q

47

ifi

43

39

38

39

39

38

37

37

34

37

44

37

34

32

29

45

41

39

38

39

Sept.

44

V7

34

34

34

37

52

41

34

32

29

27

25

25

21

22

22

22

22

20

19

17

17

17

17

17

17

20

22

22

NOTE. Mean daily gage height, in feet, on days when stage during some part of the day was above 15 

feet and discharge not determined: Oct. 13, 8.93; Oct. 16, 12.10; Nov. 6, 12.65; Jan. 16, 8.58; Jan. 17, 8.70 

Mar. 10, 9.36; Apr. 21, 16.47; May 7, 17.44. Discharge interpolated Dec. 12, 25, Feb. 12, and July 2.

Monthly discharge of San Gabriel River at Circleville, Tex., for the year ending 

ta September SO, 1926

Month

October _________________________ ....

February.. . __________________________

April....... ......... .. _. ..

June. _______________________ . .........

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

September ______________________ ......

Discharge in second-feet

Maximum

61

265

754 

890 

170 

52

Minimum

4 

32 

38 

41 

143 

138 

252 

252 

98 

61 

29 

17

Mean

46.6

194

199 

163 

48.8 

26.6

Run-off in 

acre-feet

2,870

10,800

11,800 

10,000 

3,000 

1,580

BRUSHY CKKEK AT COUPLAND, TEX.

LOCATION. At Missouri-Kansas-Texas Railroad bridge half a mile north of

Coupland, Williamson County, 8 miles south of Taylor, and 32 miles above

confluence with San Gabriel River. 

DRAINAGE AREA. 198 square miles (measured on topographic maps and base

map of Texas).

RECORDS AVAILABLE. May 27, 1924, to September 30, 1926. 

GAGE. Chain gage attached to downstream guardrail of bridge; read by Charles

Rector. 

DISCHARGE MEASUREMENTS. Made from railroad bridge or by wading.
82 SURFACE WATER SUPPLY, 1926, PART VIII

CHANNEL AND CONTROL. Bed composed of clay and silt; brush and willows 

scattered throughout; shifting. Channel curved above and below station. 

Banks slope gently, are covered with light timber and brush, and are subject 

to overflow at extremely high stages. Overflow section is cultivated land. 

Control is indefinite and will be affected by growth of brush and timber.

EXTREMES OP DISCHARGE. Maximum stage recorded during year, 23.2 feet at 

6 p. m. October 13 (discharge not determined); minimum stage, 1.80 feet 

October 10-11 (discharge, 0.60 second-feet).

1924-1926; Maximum stage recorded, that of October 13, 1925, no flow 

June 29 to September 11, 1925.

DIVERSIONS. None.

REGULATION. None.

ACCXTRACY. Stage-discharge relation not permanent. Rating curve fairly well 

defined below 1,200 second-feet and extended above on the basis of areavelocity curves; extension may be subject to considerable error. Gage read 

to tenths but not regularly. Daily discharge determined by shifting-control 

method or, on days of considerable fluctuation in stage, by averaging discharge for intervals of a day, using gage-height graph based on daily gage 

readings, except as noted in footnote to table of daily discharge. Records poor.

Discharge measurements of Brushy Creek at Coupland, Tex., during the year ending

September 30, 1926

Bate

Oct. 28... ........ ......... .

J&n. II.............. ..........

Gage 

height

Feet

4.00

Discharge

Sec.-ft.

8

K.

Date

July 14.. ...... .. ... .

Gage 

height

Feet 

6.24

5.92

Discharge

Sec.-ft. 

73

53

Daily discharge, in second-feet, of Brushy Creek at Coupland, Tex., for the year 

ending September 30, 1926

Day

I ... ...

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 _ ._-,...........

Oct.

0.9

1.2

9

.6

1,540

447

1,230

43

10

130

oc

7.6

9 n

Nov.

7.6

7.6

8

C

17

56

876

129

119

94

cfl

Q1

01

31

9ft

28

22

21

22

24

Dec.

21

17

17

16

16

16

16

16

15

14

10

10

1 9

19

12

10

11

12

Jan.

10

9

K

9.0

9.5

6.0

6.7

7.1

14

13

14

68

236

114

Q7Q

86

86

94

134

114

86

86

74

Feb.

70

70

62

14

10

25

28

25

19

19

14

iq

12

22

25

18

20

21

Mar.

23

23

23

88

144

97

99

94

129

127

Apr.

105

84

83

82

86

74

70

78

70

58

46

54

188

166

145

124

119

May

124

124

134

124

134

119

173

124

124

70

54

46

40

34

88

62

62

86

66

62

54

46

54

62

54

28

26

June

20

26

25

30

26

26

58

56

54

50

50

50

46

44

43

40

37

34

34

34

34

78

86

86

86

73

31

28

27

27

July

27

27

26

19

20

19

21

23

83

104

35

21

19

20

21

21

22

21

NOTE. No record on days for which discharge is not given. Discharge interpolated Feb. 18, 19, 21-23' 

27-28, Mar. 2, 20-21, 31, Apr. 1, 4-5,17-18, 27-28. Braced figure shows estimated mean discharge for period 

included.
BRAZOS RIVER BASIN 83

Monthly discharge of Brushy Creek at Coupland, Tex., for the year ending September

SO, 1926

Month

December _____________ . ____ . _ . ..........

July.. _ . ..

Discharge in second-feet

Maximum

1,540 

1,240 

21 

928 

70 

134 

86

Minimum

0.6 

7.6 

10 

6.0 

10.0 

26 

20

Mean

141 

121 

14.4 

96.8 

25.8 

78.3 

44.6 

29.0

Run-off in 

acre-feet

8,670 

7,190 

883 

5,950 

1,430 

4,810 

2,660 

1,790

YEGUA CREEK NEAR SOMERVILLE, TEX.

LOCATION. At Gulf, Colorado & Santa Fe Railway bridge a quarter of a mile 

above Somerville-Brenham highway bridge, 2 miles south of Somerville, 

Burleson County, and 5 miles above mouth of Davidson Creek.

DRAINAGE AREA. 990 square miles (measured on topographic maps and base 

map of Texas).

RECORDS AVAILABLE. May 24, 1924, to September 30, 1926.

GAGE. Chain gage attached to upstream side of bridge; read by B. H. Herring or 

August Dietrich. Zero of gage is base of rail; all gage readings are minus.

DISCHARGE MEASUREMENTS. Made from bridge.

CHANNEL AND CONTROL. Bed of sand and silt; shifts. Channel curved. Banks 

of sand and silt, covered with light timber and brush, with considerable 

swamp land above and below gage. One channel above bridge and several 

below at all stages. Control is indefinite and formed by natural channel 

below gage; brush and light timber scattered throughout channel; subject 

to change.

EXTREMES OF DISCHARGE. Maximum stage during year, from graph drawn from 

gage readings, 18.02 feet at 2 p. m. April 22 (discharge, 29,500 secondfeet); minimum stage, 33.05 feet at 8 a. m. October 1 (discharge, 0.10 

second-foot),

1924-1926: Maximum stage recorded, that of April 22, 1926; no flow 

during several periods.

DIVERSIONS. None.

REGULATION. None.

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

defined below 1,000 second-feet, well defined from 1,000 to 18,000 second-feet, 

and extended above. Gage read to hundredths but not regularly. Daily 

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

on days of considerable fluctuation in stage, by averaging discharge for 

intervals of a day, using gage-height graph based on daily gage readings, 

except as noted in footnote to table of daily discharge. Records fair.

Discharge measurements of Yegua Creek near Somerville, Tex., during the year 

ending September 30, 1926

Date

Oct. 14.........

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

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

Gage 

height

Feet 

-21. 25

-22.29

-21. 28

Discharge

Sec.-ft. 

16,700

12,400

16,100

Date

Oct. 17... ......

Oct. IS.... ..

Do .. .

Gage 

height

Feet 

-22.41

-24.35

-24.59

Discharge

Sec.-ft. 

12,000

6,550

6,060

Date

Oct. 19-- 

Oct. 22..-. 

Apr. 11.. __ -.

Gage 

height

Feet 

-24. 99

-28.17

-27.42

Discharge

Sec.-ft. 

5,240

972

1,750
84 SURFACE WATER SUPPLY, 1926, PART VIII

Daily discharge, in second-feet, of Yegua Creek near Somerville, Tex., for the year 

ending September 30, 1926

Day

1 ... ...

2 ... ...

3 ... ...

4.........

5 ...

6.. .

7.........

8.........

9... ......

10 - .

11 

12 ..

13 

14. .....

15 ......

16. .....

17 ......

18. .....

19. .....

20- ....

21 .....

22.........

23.........

24. 

26 .

26 

27.........

28.........

29.........

30.........

31.........

Oct.

0.2

12

40

29

17

2.6

2.3

2.0

2.3

2.0

2.3

586

11,500

13,600

16,300

12,600

6,450

5,050

3,220

1,930

1,100

257

2,720

3,070

2,060

759

348

6,280

8,180

Nov.

2,180

834

395

1,170

3,480

4,490

4,310

2,650

1,930

1,590

1,290

786

405

128

 56

59

2,190

2 080

1,180

420

190

115

52

38

OO

25

21

19

Dec.

18

18

8.4

8.4

14

12

11

11

11

11

12

19

15

16

18

10

16

14

12

12

11

11

10

8.4

8.4

Jan.

12

83

1,290

1,440

786

435

315

252

39

97

23

21

18

17

478

722

OQK

686

1,105

1 290

892

595

722

KOK

395

q7c

OKO

202

Feb.

122

98

60

30

32

90

27

24

99

19

18

18

18

17

16

16

16

16

16

16

13

i?

12

12

12

11

Mar.

10

10

9.2

10

14

21

24

25

25

1,050

2,650

2,930

2,180

904

1,440

1,060

680

808

1,060

978

1,100

4,670

6,050

4,670

3,810

4,310

3,210

1,880

3,410

4,490

Apr.

3,210

2,410

1,690

1,690'

892

850

1,100

808

1,800

1,930

1,590

1,930

1,590

1,490

1,190

638

395

315

240

335

415

21,900

19,100

8,790

4,310

2,210

1,490

1,190

967

475

May

595

808

765

850

935

1,940

1,690

1,810

2,800

3,490

3,220

1,600

975

455

252

170

115

115

120

199

265

265

265

240

130

45

11

27

24

23

20

June

17

16

16

16

38

69

40

23

14

12

16

12

15

21

20

14

11

9.4

7.4

7.3

7.2

13

17

78

32

16

14

39

32

22

July

9.2

5.8

4.9

4.1

1.3

3.0

3.0

2.2

2.7

2.7

3.4

2.2

2.7

5.8

4.5

3.7

2.7

2.7

2.4

2.4

2.2

2.7

3.2

99 1 74

18

7.5

5.7

4.4

4.0

3.3

Aug.

3.3

3.3

2.6

1.9

1.9

2.2

1.9

2.6

2.4

2.4

2.6

2.2

2.2

2.2

2.8

6.4

9.4

4.8

2.6

1.7

1.5

1.5

1.3

1.1

 1.3

1.3

1.5

1.3

1.2

1.0

1.2

Sept.

1.0

.9

2.6

2.2

1.6

3.6

3.2

2.6

2.1

1.6

1.2

1.0

.9

.9

.7

.7

.5

.5

.7

.6

.6

.6

.5

.2

.4

.4

.4

.2

.4

.3

NOTE. Discharge interpolated Nov. 26.

Monthly discharge of Yegua Creek near Somerville, Tex,, for the year ending 

September SO, 1926

Month

October- __ __ .

November.... __ __ .. _. . ... _...-_

June _____ - ______ . ________ . ........-. ..

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

August. -------

The year ________ ___ ________ ___ ..

Discharge in second-feet

Maximum

16,300 

4,490 

18 

1,440 

122 

6,050 

21,900 

3,490 

78 

99 

9.4 

3.6

21.900

Minimum

0.2 

19 

8.4 

12 

11 

9.2 

240 

11 

7.2 

1.3 

1.0 

.2

.2

Mean

3,140 

1,090 

' 12.7 

455 

26.3 

1,760 

2,900 

781 

22.1 

9.53 

2.44 

1.10

855

Run-off in 

acre-feet

193,000 

64,900 

783 

28,000 

1,460 

108,000 

172,000 

48,000 

1,320 

586 

150 

65.7

618,000

NAVASOTA RIVER NEAR EASTERLY, TEX.

LOCATION. At International-Great Northern Railroad bridge 3 miles below

mouth of Steel Creek and 6 miles northeast of Easterly, Robertson County. 

DRAINAGE AREA. 949 square miles (measured on topographic maps, United

States Army progressive military maps, and base map of Texas). 

RECORDS AVAILABLE. March 20, 1924, to September 30, 1926. 

GAGE. Vertical staff attached to downstream end of second timber bent from

right bank; read by Mack McCullough. Zero of gage is base of rail; all

gage readings are minus. 

DISCHARGE MEASUREMENTS. Made from bridge or by wading.
BEAZOS BJVEE BASIN 85

 CHANNEL AND CONTROL. Bed of sand and silt; shifting; scattered trees and 

brush along edges of well-defined channel. Channel curved above and below 

gage. Banks of sand and earth; heavily wooded; subject to overflow at 

about gage height 9 feet. Control indefinite, formed by natural channel of 

stream below gage, which has brush and debris lodged therein.

.EXTREMES OF DISCHARGE. Maximum stage recorded during year, 9.1 feet at 3 

p. m. November 7 and 10 a. m. April 23 (discharge, 10,200 second-feet); 

minimum stage, 25.0 feet September 15-30 (discharge, 2.0 second-feet).

1924^1926: Maximum stage, that of November 7, 1925, and April 23, 

1926; no flow for several periods.

DIVERSIONS. None.

REGULATION. None.

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

below 7,000 second-feet and extended to cover range of stage for year. Gage 

read to tenths once daily. Daily discharge determined by shifting-control 

method or, on days of considerable fluctuation in stage, by averaging discharge for intervals of a day, using gage-height graph based on daily gage 

readings. Records fair.

Discharge measurements of Navasota River near Easterly, Tex., during the year 

ending September 30, 1926

Date

Oct. 23. ........

Nov. 24........

Mar. 22...... _

Gage 

height

Feet 

-22.99

-23.72

-10. 15

Discharge

Sec.-ft. 

68

31.8

6,860

Date

Mar, 23. .......

Do..-. .

TWar 9A

Gage 

.height

Feet 

-10. 78

-11.04

-11.50

Discharge

Sec.-ft. 

5,240

4,600

3,760

Date

Mar. 25..... ...

July 21 

Gage 

height

Feet 

-12.05

-24.18

Discharge

Sec.-ft. 

2,810

15.3

Daily discharge, in seconds-feet, of Navasota River near Easterly, Tex., for the year 

ending September 30, 1926

Day

1 _ . _ . .....

 2..... .... .

3 ... 

-4.. . ...

.5 

-6 ... .......

7 .......

8 ...... ...

9 ....... ...

10 

111.... ..... ... .

12 ......

.13 

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

.15. .

.16 

17 ..

18 

19 .........

20 

 ! 1. _ ........

22 ..........

23 

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

 : 5 ... ...

6 ........ .

27 

28 

29 

30. i..

31 _ ..........

Oct.

9 n

9 n

9

n

15

20

23

26

26

26

23

23

23

29

447

679

1,440

1,750

2,220

9 ffcftn

1,950

664

152

77

67

62

67

157

230

199

185

164

Nov.

126

120

114

155

3,110

5,650

9,240

7,340

4,750

2,380

1,170

1,000

825

636

519

451

322

252

111

62

48

48

48

40

36

32

29

26

Dec.

26

26

26

26

26

26

26

26

26

20

17

13

15

17

20

23

23

23

23

23

23

23

23

23

23

23

23

23

23

23

26

Jan.

90

32

39

32

120

362

292

145

67

48

Af\

44

62

72

102

126

212

999

374

1,830

2,400

1,800

1,230

832

523

318

214

192

185

Feb.

17R

126

O9

72

72

62

52

52

as

48

48

44

44

40

40

40

36

36

36

32

32

32

29

90

90

29

90

Mar.

on

on

29

36

44

52

62

62

117

532

1,020

1,300

1,100

975

915

855

775

606

413

1,110

3,240

7,340

a. o?n

3,550

2,650

1,520

1,300

848

1,120

1,410

1,840

Apr.

1,620

1,450

1,260

915

657

305

215

1OQ

375

675

1 390

1,660

1,660

1,570

1,090

440

207

124

Q7

97

470

7,440

6,730

6,730

4

AAC\

1,640

1,190

486

131

May

Rd9

1 660

1,660

1,620

1,260

657

484

484

615

915

975

750

467

405

351

265

247

206

185

171

120

ins

 97

97

87

87

82

June

82

82

82

82

90

1,250

2,130

1,840

527

247

157

132

108

62

48

40

32

29

494

1,740

1,930

1,880

1,700

1,330

1,040

800

488

305

265

July

265

247

247

185

171

120

108

67

36

26

26

20

20

20

20

20

20

20

20

20

| 

15

112

1,790

2,000

175

97

Aug.

87

72

62

48

40

32

29

26

23

20

17

15

13

11

11

9.0

9.0

9.0

7.0

7.0

7.0

7.0

7.0

7.0

5.0

5.0

5.0

5.0

5.0

5.0

5.0

sept.

5.0

5.0

5.0

5.0

5.0

5.0

5.0

5.0

5.0

5.0

5.0

5.0

3.0

3.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

NOTE. Braced figure shows estimated mean discharge for period indicated.
86 SURFACE WATER SUPPLY, 1926, PART VIII

Monthly discharge of Navasota River near Easterly, Tex., for the year ending

September 30, 1926

Month

April-. 

July. 

Discharge in second-feet

Maximum

2,560 

9,240 

26 

2,400 

178 

7,340 

6,730 

1,660 

2,130 

2,000 

87 

5.0

9,240

Minimum

9.0 

26 

13 

29 

29 

29 

97 

82 

29 

15 

5.0 

2.0

2.0

Mean

430 

1,300 

22.8 

461 

55.6 

1,290 

1,520 

528 

686 

227 

19.7 

3.27

545

Run-off in 

acre-feet

26,400 

77, 100 

1,400 

28,400 

3,090 

79,000 

90,500 

32,500 

40,800 

14,000 

1,210 

194

395,000

COLORADO RIVER BASIN

COLORADO RIVER NEAR ROBERT LEE, TEX.

LOCATION. 6 miles southwest of Bronte, 6 miles southeast of Robert Lee, Coke 

County, and 7 miles above former station near Bronte.

DRAINAGE AKEA. 15,900 square miles, a large part of which is probably noncontributing (measured on topographic maps and base map of Texas).

RECOKDS AVAILABLE. October 23, 1923, to September 30, 1926.

GAGE. Vertical and inclined staff gage on right bank; read by Mrs. J. R. Smith.

DISCHABGE MEASUKEMENTS. Made by wading or from cable 20 feet below gage.

CHANNEL AND CONTKOL. Channel straight for a quarter of a mile above and 

below gage. Bed of ledge rock, overlain in places by gravel and silt; fairly 

permanent. Banks covered with brush and light timber. Right bank 

subject to overflow at about gage height 15 feet. Left bank subject to overflow at high stages. Control is rock and gravel shoal a quarter of a mile 

below gage; permanent.

EXTKEMES OF DiscHAKGE. Maximum stage during year, determined from graph 

drawn from gage readings, 20.20 feet at 10 a. m. September 6 (discharge, 

32,500 second-feet; determined from extension of rating curve and may be 

subject to error); minimum discharge, 0.50 second-foot February 27 to 

March 4.

1924-1926: Maximum stage, that of September 6, 1926; no flow for several 

periods.

DIVEKSIONS. Records of Board of Water Engineers for the State of Texas show 

that 1,700 acres has been declared irrigated above station.

RE GULATION . None.

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

below 3,000 second-feet, fairly well defined between 3,000 and 15,000 secondfeet, and extended above. Gage read to hundredths twice daily. Daily 

discharge ascertained by applying mean daily gage height to rating table 

or, on days of considerable fluctuation in stage, by averaging discharge for 

intervals of a day, using gage-height graph based on daily gage readings. 

Records fair below and poor above 15,000 second-feet.
COLORADO RIVER BASIN 87

Discharge measurements of Colorado River near Robert Lee, Tex., during the year 

ending September 30, 1926

Date

Dec. 16- 

Feb. 14,. .-.. 

Gase 

height

Feet 

1.08

1.00

2.63

Discharge

Sec.-ft.

"2

63

363

Date

Aug. 9 -~- 

Aug. 23 - 

Do. 

Gage 

height

Feet 

1.34

10.08

Discharge

Sec.-ft. 

19

» 10, 800

6 14 800

Date

Sept. 21- 

Gage 

height

Feet 

5.84

Discharge

Sec.-ft.

2 Q7fl

° Estimated.

6 Surfacs velooity measured for part of measurement and coefficient used to reduce to mean velocity.

Daily discharge, in second-feet, of Colorado River near Robert Lee, Tex., for the 

year ending September 30, 1926

Day

1 . .

2 

3 

4... _ 

5

6 

7

8 

9. 

10 

11 

12 

13- 

14 

15 

16. .

17 _ ...

18 

19 

20 .

21 

22 

23 

24 

25 

26 

27. 

28 

29 

30.. 

01

Oct.

139

107

97

78

66

60

53

45

45

48

161

374

332

205

123

1,020

2,340

1,390

441

251

161

112

99

80

66

58

49

41

38

36

00

Nov.

31

30

29

29

27

27

30

26

24

23

23

20

19

18

17

14

12

12

12

11

11

11

10

9.6

9.6

9.6

7.2

9.0

9.0

8.4

Dec.

8.4

7.8

7.2

7.2

6.0

6.0

6.0

6.0

5.6

5.6

5.6

5.6

5.2

5.2

5.2

5.2

4.8

4.8

4.8

4.4

4.4

4.0

4.0

4.0

4.0

4.0

3.6

2.8

2.4

2.0

2

0

Jan.

2.8

6.0

5.6

5.6

5.6

5.6

6.0

6.0

6.0

6.6

6.6

6.0

6.0

5.6

5.6

6.0

8.4

7.2

6.0

7.2

9.0

8.4

6.0

7.2

6.6

7.2

7.2

7.2

7.2

7.2

6.6

Feb.

6.0

5.6

5.2

4.4

4.4

4.0

4.0

3.6

2.8

2.8

2.4

2.0

2.0

2.0

2.0

2.0

1.7

1.7

1.7

1.4

1. 1

1.1

1.0

1.0

.8

.6

.5

.5

Mar.

0.5

.5

.5

.5

.8

.8

1. 1

1.1

1.0

1.0

1.0

1.0

.8

.8

.7

5.2

3.6

3.6

6.0

2,690

192

123

68

185

89

59

46

40

85

38

Apr.

65

119

85

65

39

33

24

19

18

24

56

31

29

26

21

18

12

9.0

7.2

11

11, 100

7,390

2,670

940

563

254

215

427

107

82

May

68

56

53

48

1,710

1,410

512

512

250

133

97

70

56

45

40

33

28

27

24

20

18

17

29

26

55

85

48

29

22

3,410

June

778

353

332

512

218

91

54

. 83

103

59

48

38

31

24

15

13

33

2,080

12,600

4,330

1,040

512

292

150

116

83

70

56

52

36

July

31

25

20

19

17

15

8.4

7. 1

754

224

65

54

39

128

130

184

135

72

46

30

22

24

20

56

398

88

555

563

706

512

353

Aug.

273

150

85

73

68

59

45

31

23

16

11

8.4

6.0

4.4

3.2

1.8

8.9

3.2

4.0

1.7

1.2

.6

7,880

14,300

3,010

1,040

480

292

179

128

361

Sept.

904

868

227

7,520

16,000

24,200

3,200

483

292

142

105

177

705

313

155

107

80

66

60

53

48

40

40

40

40

33

31

27

NOTE. Discharge interpolated Aug. 21 and Sept. 25-26.

Monthly discharge of Colorado River near Robert Lee, Tex., for the year ending

September 30, 1926

Month

July.. 

Discharge in second-feet

Maximum

2,340 

31 

8.4 

9.0 

6.0 

2,690 

1],100 

3,410 

12,600 

754 

14,300 

24,200

24,200

Minimum

36 

7.2 

2.0 

2.8 

.5 

.5 

7.2 

17 

13 

7.1 

^.6

.5

Mean

263 

17.6 

4.99 

6.46 

2.44 

118 

815 

3*3 

807 

171 

921 

1,910

451

Run-off in 

acre-feet

16,200 

1,050 

307 

397 

135 

7,230 

48,500 

13,600 

48,000 

10,500 

56,600 

114,000

327,000
88 SURFACE WATER SUPPLY, 1926, PART VIII

COLORADO RIVER AT BALLINGER, TEX.

LOCATION. Half a mile below Hutchins Avenue highway bridge, two-thirds 

mile below Gulf, Colorado & Santa Fe Railway bridge at Ballinger, Runnel* 

County, and half a mile above mouth of Elm Creek.

DRAINAGE AREA. 16,800 square miles, a large part of which is probably noncontributing (measured on topographic maps and base map of Texas).

RECORDS AVAILABLE. December 11, 1915, to September 30, 1926. Records of 

stage have been obtained at Hutchins Avenue gage by United States Weather 

Bureau since July 1, 1903.

GAGE. Staff gage on right bank; read by Lennis Brown.

DISCHARGE MEASUREMENTS. Made from bridge or by wading.

CHANNEL AND CONTROL. Banks of clay and gravel; wooded, and subject to 

overflow at extremely high stages. Bed of hard clay, sand, gravel, and rock; 

shifting. Control is rock shoal one-third mile below gage; shifts.

EXTREMES OP DISCHARGE. Maximum stage recorded during year, 23.9 feet at 

8.35 a. m. September 7 (discharge, 26,500 second-feet); minimum stage, 

1.08 feet at 6.30 p. m. August 21 (discharge, 1.0 second-foot).

1916-1926: Maximum stage recorded, 26.0 feet during night of April 

26,1922 (discharge, about 28,000 second-feet), no flow during several periodsDIVERSIONS. During low stages a large part of flow is diverted a few miles above 

station for irrigation. Records of the Board of Water Engineers for the State 

of Texas show that about 6,900 acres has been declared irrigated above the 

station.

REGULATION. None of importance.

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

below 5,000 second-feet and fairly well defined from 5,000 to 26,000 secondfeet. Gage read to hundredths twice daily. Daily discharge determined by 

shifting-control method or, on days of considerable fluctuation in stage, by 

averaging discharge for intervals of a day, using gage-height graph based on 

daily gage readings. Records for low and medium stages fair; for high stage& 

poor.

Discharge measurements of Colorado River at Ballinger, Tex., during the year endiny

September 80, 1926

Date

Feb. 12.......

Mar. 26..--..

Aug. 11-. .

Gage 

height

1.30

1.25

2.02

2.53

1.32

Discharge

9.8

6.7

164

376

11.7

Date

Do... 

Aug. 26 

Sept. 4___. 

Gage 

height

7.24

6.18

4.42

9.96

15.48

Discharge

«4,520

«3, 500

1,660

6,740

13,300

Date

Sept. 1. ......

Do.... ....

Sept. 22....-

Gage 

height

18.00

23.12

18.78

4.85

1.74

Discharge

>> 11, 900'

24,30a

14,400

1,940-

80

1 Poor measurement. * Backwater existed from creek below station-.

Daily discharge, in second-feet, of Colorado River at Ballinger, Tex., for the year 

ending September SO, 1926

Day

1

2..... ....

3 .

4_ ___ _

5- ..

6 ......

7... ......

8... ......

9

10. .....

Oct.

253

179

140

118

102

80

86

66

102

80

Nov.

44

40

40

37

37

47

62

KK

35

30

Dec.

16

16

16

14

14

tA

12

Jan.

12

12

12

10

13

13

12

14 JO

12

Feb.

12

10

10

10

8.0

8.0

8.0

6.5

6.5

fi. 0

Mar.

4.5

5.-0

6.5

7.0

7.0

7.0

6.5

7.0

7.0

fi. 0

Apr.

Q1

59

137

99

66

55

42

00

QO

115

May

104

80

75

815

1,950

257

June

1,480

453

446

2,770

785

247

124

86

55

9fi

July

47

44

37

40

22

22

24

601

fi20

Aug.

338

194

110

68

47

60

OQ

33

27

Sept..

748

748.

361

7,510

12,309

14, 800

960

52fl
COLORADO RIVER BASIN 89

Daily discharge, in second-feet, of Colorado River at Ballinger, Tex., for the year 

ending September SO, 1926 Continued

Day

11... ...

12.........

13.........

14.........

15 ..

16....... .

17.........

18.......

19.........

20.........

21.........

22 

23 

24.........

25... ......

26 .....

27. ........

28.........

29 ......

30 .

31 

Oct.

62

59

438

361

240

194

2,740

1,400

613

361

232

194

143

116

96

80

66

59

55

47

44

Nov.

37

24

24

21

21

21

21

21

18

18

20

16

16

15

16

15

16

16

15

16

Dec.

12

12

11

12

13

10

10

10

10

10

8.0

8.0

7.5

8.0

7.5

7.5

6.0

2.4

fi. 0

6.5

10

Jan.

12

12

12

12

12

16

16

14

15i<?

14

16

16

15

14

14

14

15

13

12

Feb.

6.0

6.0

6.0

5.5

5.0

5.0

5.0

5.0

3.5

4.0

3.5

3.5

3.0

3.0

3 fi

3.0

3.5

3.5

Mar.

5.0

4.5

4.0

5 fi

5.0

6.5

12.0

10.0

8.0

24

13,600

3

QQA

274

124

236

167

96 '

SQ

1,700

311

Apr.

105

K 4

51

00

QK

32

27

21

18

20

13,900 in Rfift

4,250

1,380

7CO

451

213

836

362

146

May

164

118

91

75

fin

51

47

44

37

qc

30

26

26

24

27

82

96

55

40

49

4,120

June

70

55

42

37

32

24

115

640

9.19P

7,550

1,840

888

274

228

150

143

118

62

57

July

Ttq

64

42

37

130

75

130

70

55

' 44

236

96

42

211

274

312

ftAA

465

613

613

Aug.

16

15

7.0

3

K

6.5

7.0

3

e

1.6

2.4

1.4

1.2

2 4

10,600

r

pOrt

1,560

678

410

9Q9

140

213

Sept.

QftO;

261

1 ^9;

991

00°.

410

299

202

143

116

QQ

75

70

62

59

51

51

51

49

46

NOTE. Discharge Sept. 6 corrected for backwater.

Monthly discharge of Colorado River at Ballinger, Tex., for the year ending September 

. 30, 1926 

f

f

Month

January

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

Discharge in second-feet

Maximum

2,740 

62 

16 

16 

12 

13, 500 

13,900 

4,120 

9,190 

644 

10, 600 

18, 600

18,600

Minimum

44 

15 

2.4 

10 

3.0 

4.0 

18 

24 

24 

22 

1.2 

46

1.2

Mean

284 

27.1 

10.5 

13.3 

5.79 

671 

1,140 

337 

954 

192 

739 

2,060

535

Run-off in 

acre-feet

17,500 

1,610 

647 

817 

321 

41,200 

67,900 

20, 700 

56, 800 

11,800 

45,400 

122,000

387, 000

COLORADO RIVER NEAR HIIBURN, TEX.

LOCATION. At bridge on Brady- Brown wood highway \% miles northwest of 

Milburn, McCullough County, and \% miles above mouth of Deep Creek.

DKAINAGE AREA. 24,600 square miles, a large part of which is probably noncontributing (measured on topographic maps and base map of Texas).

RECORDS AVAILABLE. November 20, 1923, to September 30, 1926.

GAGE. Staff gage 0 to 10.1 feet, 50 feet upstream from bridge, and chain gage 

attached to upstream side of bridge for gage heights above 10.1 feet; read 

by J. W. McBride.

DISCHARGE MEASUREMENTS. Made from bridge or by wading.

CHANNEL AND CONTROL. Channel straight for half a mile above and a quarter 

of a mile below station. Bed composed of gravel and silt; shifts. Both 

banks of clay, sparsely covered with trees, and subject to overflow at 

extremely high stages. Control is rock shoal a quarter of a mile below gage; 

permanent.
90 SUEFACE WATER SUPPLY, 1926, PART VIII

EXTREMES OP DISCHARGE. Maximum stage recorded during year, 36.1 feet at 

10 a. m. April 23 (discharge, 35,100 second-feet); minimum stage, 3.94 feet 

at 8.40 a. m. March 15 (discharge, 16 second-feet).

1924-1926: Maximum stage, that of April 23, 1926; minimum stage, 3.08 

feet at 7.30 a. m. August 10, 1924 (discharge, 0.60 second-foot).

DIVERSIONS. About 18,000 acres has been declared irrigated above station.

REGULATION. None.

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

from 35 to 2,000 second-feet, fairly well defined from 2,000 to 24,000 secondfeet, and extended above to cover range of stage for the year. Gage read to 

hundredths but not regularly. Mean daily gage height obtained by averaging twice-daily readings or from graph based on gage readings. Daily discharge determined by shifting-control method or, on days of considerable 

fluctuation in stage, by averaging discharge for intervals of a day, using 

gage-height graph based on daily gage readings, except as noted in footnote 

to table of daily discharge. Records fair.

Discharge measurements of Colorado River near Milburn, Tex., during the year 

ending September SO, 1926

Date

Nov. 24 

Mar. 25 

Gage 

height

Feet 

4.53

6.58

Discharge

Sec.-ft. 

81

1,000

Date

Aug. 15 

 Gage 

height

Feet 

6.41

4.22

Discharge

Sec.-ft.

26.5

Date

Sept. 23. 

Gage 

height

Feet

4.88

Discharge

Sec.-ft. 

152

t

Daily discharge, in second-feet, of Colorado River near Milburn, Tex., for the year 

ending September 30, 1926

Day

1. ... .... .

2 -----

3 -

4 ___ ------

5__ - ~

7 

8

10 

11 

13 

14

1 ^

16 

17 -

18 

19 

20 - 

21 

22 

23 __ 

24

25 

26 

27 

28 

29 

30 

31

Oct.

304

286

269

201

145

120

137

137

150

342

322

169

730

1,430

525

4,960

947

1,320

1,680

1,080

615

430

304

269

236

189

134

134

167

122

110

Nov.

87

68

72

52

52

52

134

269

204

148

161

134

110

85

60

45

92

96

92

92

87

83

83

81

83

96

85

85

85

83

Dec.

79

76

83

83

79

76

78

76

76

74

76

76

76

76

74

76

76

76

79

78

7Q

72

72

74

72

70

68

68

66

70

Jan.

79

83

83

87

89

96

96

96

92

85

83

Q1

83

85

CO

87

103

150

127

110

733

156

137

120

120

134

132

120

110

Feb.

103

98

87

81

78

78

73

68

68

64

63

58

CO

' 52

52

47

46

45

40

38

40

38

Qd.

DO

Mar.

25

24

28

28

26

26

24

1Q

16

16

16

24

22

22

27

11,200

2,030

1,080

1,800

1,830

755

1,360

5,160

Apr.

1,820

720

404

322

269

236

201

cod

7Qfi

404

O*9

207

1QO

1 KG

CQO

20,300

2 430

1 380

one

548

May

523

361

252

258

4,790

5,900

1,740

1,000

1,730

404 099

304

286

251

OfLl

1QO

180

IRQ

1 f%ft

167

158

1 f\S

161

167

172

873

June

3,800

2,230

1 380

1,370

6,420

1,820

860

486

304

252

OfiQ

139

010

O RKft

9

1 Eft

8 IW1

1 940

1,080

685

A(\A

o^o

177

July

156

115

79

55

45

55

55

42

40

131

361

QfM

01 Q

"ion

96

74

57

63

QO

01

O OQft

2 230

486

269

91 Q

322

720

615

Aug.

 456

1,150

576

236

172

134

115

QO

tjn

60

11

40

rtn

01

97

or:

23

oo

OO

OQO

OQfi

210

OKO

S

oon

6 940

1,740 QOA

580

430

361

Sept.

236

236

720

1,910

7,780

14,300

17,100

on inn

3,380

1,380

1,220

1 560

486

322

269

OOO

AfJR

304

9°.fi

1°.9

105

QQ

Q7

76

01

NOTE. Discharge interpolated Nov. 14, Dec. 25, 26, Feb. 8, May 1,16,18-20, June 29-30, Aug. 13-14, and 

Sept. 27. Discharge partly estimated July 6, 17, Aug. 15, Sept. 15, 18-20.
COLOBADO BIVER BASIN 91

Monthly discharge of Colorado River near Milburn, Tex., for the year ending

September SO, 1926

Month

November. _________________________

July . .- . . . 

Discharge in second-feet

Maximum

4,960 

269 

83 

3,190 

103 

13, 900 

29,800 

5,900 

9,150 

2,230 

8,830 

20,300

29,800

Minimum

110 

45 

66 

79 

28 

16 

134 

156 

139 

40 

22 

76

16

Mean

579 

98.5 

74.9 

227 

59.1 

' 1,290 

2,470 

733 

1,670 

370 

798 

2,460

901

Run-off in 

acre-feet

35,600 

5,860 

4,610 

14,000 

3,280 

79,300 

147, 000 

45,000 

99,400 

22,700 

49,100 

147, 000

653,000

COLORADO RIVER WEAR TOW, TEX.

LOCATION. At highway bridge \% miles northeast of Tow, Llano County, 2 

miles below mouth of Fall Creek, and 6 miles northwest of Bluffton.

DBAINAGE AKEA. 31,100 square miles, a large part of which is probably noncontributing (measured on topographic maps and base map of Texas).

RECORDS AVAILABLE. October 26, 1923, to September 30, 1926.

GAGE. Au continuous water-stage recorder attached to downstream side of bridge 

pier; attended by W. A. Farris.

DISCHARGE MEASUREMENTS. Made from bridge or by wading.

CHANNEL AND CONTROL. Channel straight for 2 miles above and half a mile 

below gage. Bed of rock, partly overlain by gravel and silt; fairly permanent. Banks covered with brush and light timber; permanent; subject 

to overflow at extremely high stages. Control is rock ledge and boulder 

shoal one-eighth mile below gage; permanent.

EXTREMES OF DISCHARGE. Maximum stage during year, from water-stage recorder, 16.62 feet from 5 to 7 a. m. April 25 (discharge, 26,500 second-feet); 

minimum stage, 5.52 feet from 1 to 8 a. m. August 22 (discharge, 81.0 secondfeet).

1924-1926: Maximum stage, 16.74 feet at 4 a. m. May 12, 1925 (discharge, 27,000 second-feet); minimum stage, 5.00 feet at 5 p. m. January 

10, 1925 (discharge, 24.0 second-feet).

DIVERSIONS. Numerous small diversions above station; amount not known.

REGULATION. None.

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

for all stages. Operation of water-stage recorder not satisfactory. Daily 

discharge determined by applying to rating table mean daily gage heights 

obtained from recorder graph by inspection or, on days of considerable 

fluctuation in stage, by averaging discharge for intervals of a day, except as 

noted in footnote to table of daily discharge. Except for estimated periods, 

records good. 

96272 30 7
92 SURFACE WATER SUPPLY, 1926, PART VIII

Discharge measurements of Colorado River near Tow, Tex., during the year ending

September 30, 1926

Date

TWar 94.

Gage 

height

Feet 

6.10

10 Q1

Discharge

Sec.-ft. 

295

16,700

Date

Aug. 17 

Sept. 7 . 

Gage 

height

Feet 

5.66

12.25

Discharge

Sec.-ft. 

115

11,700

Daily discharge, in second-feet, of Colorado River near Tow, Tex., for the year 

ending September 30, 1926

Day

1 

2. 

5 -

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

10

20 

21 

22- - 

23. ....... .

24 

25 -

26 

27 

28

29 . 

30 -..

31 

Oct.

1,100

849

665

552

504

483

476

476

456

463

310

704

996

4,960

6, 220

8,450

14,500

6,220

9 fw.n

2,640

1,840

1,240

940

762

1,870

1,720

762

517

405

368

339

Nov.

327

293

277

271

661

6,410

3.490

4,050

2,570

1,250

940

754

618

538

483

444

430

399

362

356

344

339

322

316

322

293

288

293

Dec.

293

293

293

282

271

266

266

255

255

250

250

244

244

250

250

250

255

255

255

oqn

239

239

244

250

Jan.

266

288

288

293

304

293

288

304

299

299

293

277

277

271

921

665

470

3,400

3,440

1,450

903

680

582

510

497

483

Feb.

450

430

QQQ

380

V7A

356

344

322

310

288

288

271

266

266

261

} 250

239

220

201

Mar.

252

QfU

390

1, 750

680

4on

362

293

9ft9

OQQ

282

293

304

199

316

293

5,180

15, 100

5,280

2,300

1,480

2,650

1,780

1,380

1,100

Apr.

3,940

3,220

1,780

1,220

940

796

754

704

926

11,900

7,100

2,780

1,720

1,420

1 9Oft

1,010

857

665

814

12.100

23,500

24,300

6,130

2,430

1,840

1,470

1,190

May

1,140

1,280

1,040

2,720

1,180

1,220

4,290

8,040

3,230

6,170

14,000

2,540

1,240

968

822

721

649

603

574

524

4Qfi

463

450

424

399

393

374

344

339

374

362

June

333

588

3,310

2,780

2,040

8,000

4,440

2,040

1,350

968

729

665

 721

7(Vt

1,800

949

567

2,340

1,750

10,800

4,290

2,100

1,500

1,090

875

704

618

497

July

444

374

374

322

271

250

220

196

167

220

1,110

524

673

762

552

430

393

310

255

205

201

816

3,550

8,710

3,470

1,840

1,070

779

634

696

1,040

Aug.

884

746

822

831

589

476

393

327

288

239

196

163

148

136

126

113

108

101

an

94

86

113

504

405

368

3,950

[2, 260

Sept.

2,260

9,800

13,900

17,800

13,400

2,590

1,450

1,010

788

626

504

424

368

380

582

AQ7

424

356

310

277

239

205

220

187

171

NOTE. Discharge partly estimated Feb. 21, 28, Mar. 7-23, 27, July 23-25, and Sept. 7. Braced figures 

show estimated discharge for periods included.

Monthly discharge of Colorado River near Tow, Tex., for the year ending September

30, 1926

Month

December __ . __ . ___________________ ..

April.. 

July...... _ 

August ____ - _ 

The year... _ ............ __ . __________

Discharge in second-feet

Maximum

14,500 

6,410 

310 

3,440 

450 

15, 100 

24,300 

14,000 

10,800 

8,710

17,800

24,300

Minimum

310 

271 

239 

266 

201

. 665 

339 

333 

167 

86 

171

86

Mean

2,060 

938 

261 

666 

291 

1,440 

4,130 

1,850 

2,190 

995 

761 

2,670

1,520

Run-off in 

acre-feet

127,000 

55,800 

16,000 

40,900 

16,200 

88,600 

246,000 

114,000 

130,000 

61,200 

46,800 

159,000

1, 100, 000
COLORADO RIVER BASIN 93 

COLORADO RIVER AT MARBLE FALLS, TEX.

LOCATION. At steel highway bridge a quarter of a mile south of Marble Falls, 

Burnet County, and 10 miles below mouth of Sandy Creek.

DRAINAGE AKEA. 36,100 square miles, a part of which is probably noncontributing (measured on topographic maps and base map of Texas). 

.RECORDS AVAILABLE. October 1, 1916, to August 31, 1926, when station was 

discontinued on account of power plant diverting water around gage. 

Miscellaneous discharge measurements were made in 1902. Records of 

stage have been obtained by United States Weather Bureau since January 

1, 1908.

GAGE. Chain gage on upstream side of bridge; read by N. C. Galloway.

DISCHARGE MEASUREMENTS. Made from bridge or by wading.

CHANNEL AND CONTROL. Bed of solid rock; banks of rock, gravel, and clay; 

wooded and not subject to overflow. Rapids just below gage serve as fairly 

permanent control, except at times when sand and gravel collect.

EXTREMES OF DISCHARGE. Maximum stage recorded during period, 11.90 feet 

at 7.20 a. m. November 6 (discharge not determined); minimum stage, 

1.03 feet at 5.45 p. m. August 19 (discharge, 121 second-feet; subject to 

error owing to inaccuracy of reading gage because of wind on tape).

1916-1926: Maximum stage recorded, 22.3 feet at about 1 p. m. May 

1, 1922 (discharge not determined); no flow August 7, 8, 11-25, 1918, 

caused by storing water above gage.

A stage of 23.9 feet was reached during flood of April 7, 1900, as reported 

by United States Weather Bureau (discharge not determined).

DIVERSIONS. Several large projects have been proposed in the drainage basin 

above station, but none have been developed. Numerous small diversions 

for irrigation and municipal uses are made above station; total amount 

diverted not known. Record of the Boaid of Water Engineers for the State 

of Texas shows that approximately 36,000 acres has been declared irrigated 

by diversions above station. Little water is diverted between Marble 

Falls and Austin.

REGULATION. None of importance, except possibly during extremely low stages.

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

below 6,000 second-feet and poorly defined above, owing to inability to read 

gage accurately because of surge, and inaccuracies in measurements on 

account of high velocities and submerged drift. Gage read to hundredths 

twice daily, although the influence of wind on long gage chain and surge of 

water at high stages probably introduce some error. Daily discharge 

above 6,000 second-feet not sufficiently accurate for publication. Daily 

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

Records for low stages, fair; for intermediate stages, poor.

The following discharge measurements were made:

December 1, 1925: Gage height, 2.21 feet; discharge, 654 second-feet.

March 23, 1926: Gage height, 2.66 feet; discharge, 1,030 second-feet.
94 SURFACE WATER SUPPLY, 1926, PART VIII

Daily discharge, in second-feet, of Colorado River at Marble Falls, Tex., for the 

year ending September 30, 1926

Day

1 _ ........

2 ..........

3 ...

4 

5-. 

6. ... ....

7 __ ........

8. __ .......

9.. ...... .

10.- 

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

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

13-- 

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

15. 

16.- 

17. 

18.. _.. ...

19 

20 

21. 

22 . 

23 

24.. 

25 

26

27 

28 

29.. .

30. 

31. ..

Oct.

2,000

1,550

1,200

1,000

868

702

665

600

535

502

445

445

1,260

3,560

5,300

3,340

2,540

1,920

1,620

3,230

4,000

2,180

1,260

1,050

1,000

Nov.

825

782

740

740

1,000

4,000

2,540

1,920

1,850

1,550

1,150

1,000

1,000

958

868

868

782

782

740

740

740

702

702

Dec.

665

665

632

600

568

568

568

568

568

568

568

600

632

600

535

535

568

568

568

535

535

502

502

502

502

502

470

470

470

Jan.

535

7H9

740

665

665

600

568

568

535

535

502

KAO

568

1 260

2,900

1,780

1,370

i ^n

3,340

2,270

1,850

1,310

1 200

1,100

1,050

Feb.

910

868

825

700

740

702

7H9

7fio

702

632

600

600

 finn

600

568

568

502

KAO

470

470

470

470

470

470

Mar.

445

445

470

502

flAA

782

4,260

5,040

2,360

1,200

1 9Hn

1,050

1,550

1,490

1,200

1,100

1,050

4,000

3,780

4 260

3,560

Apr.

2,360

3,780

2,810

2 79ft

2,360

1,920

9 ISft

1,920

3,560

3,340

3,120

2,000

1,700

2,270

4,650

3,340

2,720

2,270

May

2,000

2,180

2,000

2,270

3

1OA

1,850

4,130

2,720

2,000

1,780

1,430

1,310

2,270

2,000

1,370

1,050

1,000

868

825

825

740

740

665

632

665

June

632

1,430

5,300

3,560

o ccn

2,360

1,700

1,370

1,050

910

825

1,000

958

1 920

1,150

740

3,670

2,360

5,040

3,340

2,000

2,180

1,310

1,100

1,000

July

825

740

fiCC

flftft

568

445

OAK

°.7ft

325

316

1,260

782

868

1 000

868

fifiC

535

420

370

420

2,540

3,780

2,180

1,430

1,150

910

1,000

Aug.

1,370

1,200

1,050

1,100

1,100

868

665

600

470

445

395

343

273

OQQ

221

KM

209

150

170

168

160

188

535

470

2,900

1,920

1,430

NOTE. Approximate mean daily gage height in feet for days when discharge was beyond limits of rating 

curve, as follows: Oct. 15, 6.58; Oct. 16, 9.30; Oct. 17, 9.70; Oct. 18, 7.50; Nov. 6, 10.50; Nov. 7, 7.90; Nov. 8, 

6.80; Nov. 9, 5.46; Mar. 24, 7.74; Mar. 25, 8.68; Mar. 26, 5.76; Apr. 2, 5.42; Apr. 10, 7.02; Apr. 11, 7.12; Apr. 12, 

5.75; Apr. 13, 5.13: Apr. 23, 5.46; Apr. 24,10.12; Apr. 25,11.16; Apr. 26, 7.75; May 7, 5.55; May 8, 6.66; May 9, 

5.78; May 11, 8.26; May 12, 5.90; June 7, 6.06; June 22, 7.58; June 23, 6.36; July 24, 5.52; July 25, 6.61; Aug. 27, 

6.20; Aug. 28, 5.61.

Monthly discharge of Colorado River at Marble Falls, Tex., for the year ending

September 30, 1926

Month

Discharge in second-feet

Maximum

665 

5,040 

958

Minimum

470 

502 

470

Mean

557 

1,240 

621

Run-off in 

acre-feet

34, 300 

76,000 

34,500

COLOEADO RIVER AT AUSTIN, TEX.

LOCATION. At Congress Avenue concrete viaduct in Austin, Travis County, 

half a mile below mouth of Shoal Creek, above mouth of Waller Creek, 

and 3% miles below Austin Dam.

DRAINAGE AREA. 38,200 square miles, part of which is probably noncontributing (measured on topographic maps and base map of Texas).

RECORDS AVAILABLE. February 15, 1898, to September 30, 1926.
COLORADO RIVEK BASIN 95

GAGE. Au 60-day recorder on downstream side of pier; inspected by engineers 

of United States Geological Survey.

DISCHARGE MEASUREMENTS. Made by wading or from Montopolis highway 

bridge, 4 miles below gage.

CHANNEL AND CONTROL. Channel straight for 1,000 feet above and 500 feet 

below gage. Banks of clay and gravel; right bank subject to overflow; left 

bank not subject to overflow. Bed of rock, gravel, and sand; shifts. 

Control is gravel shoal 500 feet below gage; shifts.

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

recorder, 9.58 feet at 11 p. m. April 21 (discharge, 33,300 second-feet); 

minimum stage, 0.18 foot at 7 a. m. August 26 (discharge, 140 second-feet). 

1898-1926: Maximum stage recorded, 33.5 feet a few minutes after failure 

of dam, which occurred at 11.30 a. m. April 7, 1900 (discharge, 236,000 

second-feet; determined from extension of rating curve and may be subject 

to considerable error). At time of failure depth of water over crest of dam 

was 11.07 feet, with a computed discharge of 151,000 second-feet. According to information obtained from people living near Congress Avenue 

bridge, the water rose 6.1 feet as a result of the failure. Therefore, the 

gage height corresponding to a discharge of 151,000 second-feet was 27.4 

feet. According to a statement by Mr. W. P. Johnson, who was in charge of 

the power plant at the dam, the flood appeared to be practically at its crest 

when the dam failed. Minimum discharge, 13 second-feet 3 at 6 p. m. 

August 18, 1918.

DIVERSIONS. Records of the Board of Water Engineers for the State of Texas 

show that about 36,000 acres has been declared irrigated by diversions above 

station. Most of area irrigated is in upper basin of main stream and adjacent 

to large tributaries. Little water is diverted between Austin and Columbus.

REGULATION. Flow entirely regulated at times by operation at Austin Dam, 

about 3*6 miles upstream. Sluice gates, crest gates, and power plant at 

dam were not in operation during the years ending September 30, 1919-1926. 

Capacity of reservoir about 24,000 acre-feet.

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

for all stages. Operation of water-stage recorder satisfactory. Daily 

discharge determined by shifting-control method or, on days of considerable 

fluctuation in stage, by averaging discharge for intervals of a day, except as 

noted in footnote to table of daily discharge. Records good.

Discharge measurements of Colorado River at Austin, Tex., during the year ending

September 30, 1926

Date

Nov. 3.........

Nov. 30-- 

Dec. lg_ r _ ......

Gage 

height

Feet 

1.13

1.04

.90

2.24

Discharge

Sec.-ft. 

906

881

585

2,990

Date

Apr. 16 

Aug. 13 

Gage 

height

Feet 

2.31

2.78

1.18

70

Discharge

Sec.-ft. 

3,690

4,980

1,080

437

Date

Aug. 13 __

Sept. 17. ...... .

Sept. 18 ..

Gage 

height

Feet 

0.75

1.22

1.16

Discharge

Sec.-ft. 

453

977

850

8 Figures published in Water-Supply Paper 588 and papers prior to 528 in error.
96 SXJEFACE WATEE SUPPLY, 1926. PAET VIII

Daily discharge, in second-feet, of Colorado River at Austin, Tex.,for the year ending

September SO, 1926

Day

1 .... -

2__ ...

3 

4 _

5 .....

6 ~

7 .... .

8 ---

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

Oct.

4,240

2,600

1,990

1,540

1,180

930

825

635

520

472

3,010

1,730

3,640

12,700

90 Sftft

26,200

15, 300

7,140

4 240

3,920

3,120

2,550

9 19f>

2,350

3,090

3,010

2,120

f KCA

1,260

Nov.

1,100

977

945

1,150

3,230

28,400

14 400

12, 800

8,020

S CAD

3 fHft

2,600

2,240

1,900

1,650

1,500

1,350

1,270

1 240

l!200

1 060

1 030

1,010

Q77

QOfl

885

885

885

Dec.

825

840

S7ft

702

714

7H9

702

668

646

646

635

613

657

613

602

591

C7fl

580

580

t\t\f\

520

Cfirt

520

570

480

490

510

490

Jan.

con

624

fiQft

726

7(19

690

613

580

»iSft

COrt

550

con

eort

635

2,460

2,010

2,600

2

0Crt

2,100

1,670

1,580

3 7fift

4,180

9 oftn

o 9ftn

1,880

1,690

i p-ftn

1 ^Qft

Feb.

1,220

1,180

1,040

1,010

Q4H

Qfift

ft7ft

840

810

690 700

679

679

657

613

624

726

4.0ft

472

C,ftft

624

510

560

eon

CCrt

Rf)f\

Eftfi

Mar.

550

510

550

Cftfl

ft4.fi

Of\ft

657

738

1,420

4 1 %f\

A AOA

9 inn

1,650

1,480

1,460

1 440

1,600

1,820

1,690

1 540

MOO

1,350

15 400

10 oflfl

7 490

4,690

4,310

5

onn

4 AQD

Apr.

4 080

3,550

6,090

4,520

3,370

3.2QO

2,800

2,580

2,680

2,520

11, 100

19 ftftfl

8,540

6,960

4,690

3,620

3,400

i 9/m

2,750

3,070

15,900

19 800

in ftnn

11 000

97 Aftft

29,400

16,100

9 _lfift

6,090

4

O4.A

May

3,730

4,310

3,430

3,320

3,310

5,390

5,920

10,300

12,000

9,600

6,090

14,000

10, 300

4,740

3,150

2,680

2,400

2,140

2,140

9 3ftft

3 fi7ft

2,600

2.400

i Q9n

1 4ftft

1,330

1,180

994

945

885

840

June

810

738

580

657

1,100

1,900

4,630

8,540

5,390

3,120

2,450

1,650

1,400

1,010

70S

870

1,100

1,330

1,770

1,390

1,600

2,700

10,500

10,200

6,090

3,990

2,880

1,750

1,420

July

1,200

1,060

930

855

762

690

635

560

560

560

591

900

900

945

1,010

960

1,080

994

885

774

657

950

4,470

5,560

5,740

8,190

5,220

3,020

2,050

1,480

1,150

Aug.

1,010

994

1,170

1,130

977

960

960

810

679

580

510

472

404

374

353

307

271

250

240

235

220

215

211

220

187

161

235

2,760

7,490

3,960

2,380

Sept.

1,600

1,170

930

786

679

580

520

2,030

11,600

17,200

18,600

8,980

3,730

2,240

1,610

1,260

1,030

S40

679

591

550

472

480

530

560

454

395

353

332

307

NOTE. Discharge partly estimated Apr. 10, 27-29, and May 21.

Monthly discharge of Colorado River at Austin, Tex., for the year ending September

30, 1926

Month

October ______________ _____________

November.-. _ -------- _ _ ___-. _______ __ _ ._ ...

February..- ___ _ ......................................

March. __ __ _____ . __ ...

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

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

July.-..-. - _._ _- _____ ...__._-__-.-_

September. _________________________

Discharge in second-feet

Maximum

29,800 

28,400 

870 

4,180 

1,220 

15,400 

29,400 

14,000 

10,500 

8,190 

7,490 

18,600

29,800

Minimum

472 

885 

480 

520 

472 

510 

2,520 

840 

580 

560 

161 

307

161

Mean

4,680 

3,570 

625 

1,430 

723 

3,100 

8,130 

4,160 

2,820 

1,790 

991 

2,700

2,900

Run-off in

acre-feet

288,000 

213,000 

38,400 

87,900 

40,100 

190,000 

484,000 

255,000 

168,000 

110,000 

60,900 

161,000

2, 100, 000

EVAPORATION NEAR AUSTIN, TEX.

LOCATION. At reservoir on Hill ranch, 1,000 feet from ranch house and 5 miles 

southeast of Austin, Travis County; 475 feet above mean sea level.

RECOKDS AVAILABLE. April 1, 1916, to September 30, 1926.

EQUIPMENT. Two evaporation pans, one floating on surface of reservoir which is 

about 30 feet wide by 250 feet long and is supplied by spring, and the other 

on land about 30 feet from reservoir. Auxiliary equipment consists of hook 

gage, rain gage, anemometer, maximum and mimimum thermometers, and 

psychrometer.
COLORADO RIVER BASIN 97

ACCURACY. Moss and weed growth in reservoir may at times affect results. 

Records from land pan more accurate than that from floating pan. Observations made daily at 8 a. m. Observer's work good.

COOPERATION. Computations made by United States Weather Bureau.

Evaporation near Austin, Tex., for the year ending September SO, 1926

Month

November .....

July. _ ....

September ..... 

The year..

Temperature (°F.)

Air

Mean maximum

74.3 

68.5 

57. 5a 

54.9 

72.0 

63.6 

73.6 

82.9 

91.6 

92.2 

94.0 

93.0

76.5

Mean minimum

57.1 

43.8 

34. 8a 

33.3 

40.8 

45.0 

50.5 

60.5 

68.7 

70.6 

71.0 

69.3

53.8

Mean

65.7 

56.2 

46. 2a 

44.1 

56.4 

54.3 

62.0 

71.7 

80.2 

81.4 

82.5 

81.2

66.2

Water

Floating pan 

(mean)

67.2 

55.0 

46. 6c 

44. 9d 

53.2 

56.3 

62.1 

69.7 

76.7 

78.7

Land 

pan 

(mean)

62.8 

52.6 

42. Ic 

42. 6e 

48.0 

51.8 

59.7 

69.4 

76.1 

77.7

Mean relative humidity 

(per 

cent)

92.4 

93.4 

89. 4c 

92. Od 

88.9 

93.7 

90.8 

91.0 

86.0 

86.3

Wind

Average velocity 

(miles. 

per 

hour)

1.9 

2.0 

3.4 

2 9 

3.1 

3.0 

3.3 

.7 

.7 

.9 

.9 

1.1

2.0

Prevailing direction

N. 

NE. 

SW. 

SW. 

SW. 

NE. 

N. 

E. 

E. 

S. 

S. 

S.

S.

Rainfall 

(inches)

11.90 

3.92 

.80 

4.19 

.10 

7.05 

5.66 

4.00 

2.14 

3.89 

2.13 

1.29

47.07

Evaporation 

(inches)

Floating pan

«3.544 

«2.233 

2.159 

«1. 697 

3.270 

"3.400 

«3. 877 

"3. 151 

4.062 

"4.127 

5.050 

4.755

41. 325

Land 

pan

"4. 478 

«2. 996 

2.577 

«2. 219 

4.354 

"3.954 

o4.748 

«5. 771 

7.336 

7.405 

7.445 

6.395

59. 678

<* Estimated.

NOTE. Letters following figures indicate the number of days missing; a, 1 day; b, 2 days; etc.

COLORADO RIVER AT COLUMBUS, TEX.

LOCATION. At county highway bridge 400 feet below Galveston, Harrisburg & 

San Antonio Railway bridge, in eastern edge of Columbus, Colorado County, 

2 miles below mouth of Cummins Creek.

DRAINAGE AREA. 40,800 square miles, a large part of which is probably noncontributing (measured on topographic maps, base map of Texas, and United 

State^ Army progressive military maps).

RECORDS AVAILABLE. May 22, 1916, to September 30, 1926; January 1, 1903, 

to December 31,1911. Records of stage have been obtained by United States 

Weather Bureau since January 1, 1903.

GAGE. Gurley graph water-stage recorder, inspected by E. J. Frnka.

DISCHARGE MEASUREMENTS. Made from bridge or by wading.

CHANNEL AND CONTROL. Channel straight above and below station for 400 feet. 

Right bank of earth and not subject to overflow; left bank subject to overflow above gage height 34 feet. Bed of sand; shifts. A sand and gravel 

section, 350 feet below gage, may serve as low-water control. During medium and high stages stage-discharge relation may be controlled by bend in 

river below- bridge.

EXTREMES OP DISCHARGE. Maximum stage during year, from recorder graph, 

36.4 feet at 11 p. m. April 22 (discharge, 73,100 second-feet); minimum discharge, 555 second-feet at. 11 a. m. August 29.

1903-1911, 1916-1926: Maximum stage, from water-stage recorder, 38.3 

feet May 5, 1922 (discharge, 79,500 second-feet); minimum discharge, 10 

second-feet September 9 and 10, 1910.

DIVERSIONS. Considerable water is diverted for irrigation in the drainage basin 

above Austin, but between Austin and Columbus little water is diverted. 

Station is above the irrigated rice belt, which comprises several thousand 

acres. Records of the Board of Water Engineers for the State of Texas show 

that about 36,000 acres has been declared irrigated above Austin.
98 SURFACE WATER SUPPLY, 1926, PART VIII

REGULATION. Flow during low stages partly controlled by storage at Lake 

Austin.

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

for all stages. Operation of water-stage recorder satisfactory, except for 

short breaks in record. Daily discharge determined by shifting-control method 

or, on days of considerable fluctuation, by averaging discharge for intervals 

of a day, except as noted in footnote to table of daily discharge. Records fair.

Discharge -measurements of Colorado River at Columbus, Tex., during the year 

ending September 30, 1926

Date

Oct. 21.......................

Dec. 21..... _ -.-_-_ _ ..

Gage 

height

Feet 

16.01

7.21

Discharge

Sec.-ft. 

11,700

1,030

Date

Apr. 12..--.. _ .

Gage 

height

Feet 

11.63

8.01

Discharge

Sec.-ft. 

5,180

1,580

Daily discharge, in second-feet, of Colorado River at Columbus, Tex., for the year 

ending September 80,1926

Day

1 .........

2.........

3 ......

4 _ ......

5... ...

6.........

7.........

8... ..... .

9 .........

10.-.--...

11 -. .

12. ..

13.. _ ....

14.........

15.........

16 . 

17 _ ......

18 

19 .........

20.........

21.........

22.........

23 

24 _ ......

25.........

26.........

27.........

28 ......

29..... __

30 ....

31 ......

Oct.

8,620

7,820

4,940

3,670

2,800

2,180

1,820

1,520

1,260

1,090

1,020

928

2,030

52, 500

54,400

31,900

28,300

24,900

20,400

12,700

7,870

5,500

4,540

4,150

4,280

3,440

2,800

2,700

7,880

8,850

Nov.

4,430

2,900

2,280

1,930

1,820

5,940

15,000

14,300

19,000

13,700

10,800

8,210

6,250

5,080

4,030

3,110

2,800

4,510

4,490

2,700

2,180

1,930

1,780

1,670

1,600

1,480

1,440

1, 410

1,380

Dec.

1,340

1,310

1,280

1,250

1,220

1,180

1,150

1,120

1,090

1,060

1,020

992

960

928

960

Qfift

992

992

1,200

1,020

895

862

830

806

770

770

776

776

800

Jan.

1,120

6,800

7,360

3,910

3,110

1 (Wft

1,480

1,300

1 93ft

1,160

960

960

895

830

i 55ft

5,880

3,110

2 Qftft

9 QftA

3,000

4,670

4 1 Kf\

3,220

2 Qftft

4,800

3

AAf\

3,670

2,900

2 Knn

Feb.

2,230

2,100

1,860

1,710

1,630

1,520

1 440

1,340

1 3ftft

1,230

1,160

1,060

1,020

960

Qftft

928

895

one

830

830

830

818

782

740

716

662

656

Mar.

644

CQQ

612

698

1,020

1,060

1,040

862

830

8,040

12, 300

7,070

3,790

5,360

4,800

S

een

3,220

6,450

5,800

5,140

4,670

4,410

4,410

3 Q1ft

4,910

10, 100

10 600

7,530

14,200

19 onn

Apr.

8,040

5,800

5,360

4,800

4,800

6

QKfl

5,220

5,500

5.360

5,360

6,400

5,360

8,260

9,670

6,860

5,650

4 800

4,030

38,100

69,100

43, 200

47, 200

21,100

31,600

16, 100

11,400

May

3,200

9,670

10,200

8,570

8,750

10,600

12,200

20,900

15,000

12,100

13,300

11,200

10.000

13,100

10,600

7,020

5,220

4,410

4,030

3,790

3,670

3,440

3,550

3,790

3,220

2,700

2,360

2,230

2,050

1,930

1,820

June

1,745

2,200

6,860

3,130

1,900

1,630

2,140

3,380

3,910

6,390

5,960

4,030

3,220

2,600

2,230

1,970

1,820

1,630

1,740

1,740

1,710

2,140

1,860

1,970

6,850

9,110

6,550

4,940

3,790

3,110

July

2,600

2,280

2,050

1,860

1,710

1,560

1,410

1,230

1,120

1,020

992

895

1,830

2,010

1,970

1,600

1,340

1,300

1,200

1,300

1,370

1,600

2,200

2,570

2,870

5,080

4,940

6,700

6,100

4,410

3,440

Aug.

2,700

2,230

2,140

1,780

1,600

1,630

1,630

1,520

1,440

1,410

1,300

1,200

1,060

960

928

862

830

812

794

770

747

724

702

680

658

636

614

592

570

617

2,490

Sept.

5,080

3,670

2,900

2,230

1,860

1,560

1,370

1,230

1,120

960

5,570

14,100

13,300

8,750

5,800

4,150

3,220

2,700

2,320

2,050

1,780

1,600

1,410

1,230

1,090

992

960

992

1,020

928

NOTE. Discharge obtained by use of United States Weather Bureau records: Oct. 1, 2, 6-20, Nov. 6, 

Jan. 11-18, Feb. 8-24, Apr. 17-24. Discharge partly estimated Nov. 23-27, Jan. 19, Feb. 24-25, Mar. 26-27, 

July 25, Aug. 29, Sept. 12-14. Discharge interpolated Nov. 28 to Dec. 11 and Aug. 21-28.
COLORADO RIVER BASIN 99

Monthly discharge of Colorado River at Columbus, T'ex., for the year ending September

30, 1926

Month

March _ ________________ ________

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

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

Discharge in second-feet

Maximum

54,400 

19,000 

1,340 

7,360 

2,230 

14,200 

69,100 

20,900 

9,110 

6,700 

2,700 

14,100

69,100

Minimum

928 

1,380 

770 

830 

656 

612 

4,030 

1,820 

1,630 

895 

570 

928

570

Mean

11,400 

5,050 

1,010 

2,870 

1,150 

5,040 

16,400 

7,440 

3,410 

2,340 

1,180 

3,200

5,050

Run-off in 

acre-feet

701, 000 

301, 000 

61,800 

177, 000 

64, 100 

310, 000 

978,000 

457,000 

203, 000 

144,000 

72,600 

190,000

3, 660, 000

CONCHO RIVER NEAR SAN ANGELO, TEX.

LOCATION. Half a mile below confluence of North Concho and South Concho

Rivers and 1% miles southeast of San Angelo, Tom Green County. 

DRAINAGE AREA. 4,490 square miles (measured on topographic maps and base

map of Texas).

RECORDS AVAILABLE. September 17, 1915, to September 30, 1926. 

GAGE. Stevens continuous water-stage recorder on right bank, 1,500 feet

below on old ford; inspected by Geological Survey engineers. 

DISCHARGE MEASUREMENTS. Made by wading or from cable 1,500 feet above

gage. 

CHANNEL AND CONTROL. Bed of solid rock and gravel. Channel straight for

I,000 feet above and below station. Right bank wooded, rocky, and not 

subject to overflow. Left bank of clay and gravel, covered with scattering 

trees and subject to overflow at high stages. Rapids just below gage serve 

as control for medium and low stages; affected by moss. High-stage control 

not known.

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

recorder, 27.68 feet at 10.45 a. m. April 21 (discharge, about 48,800 secondfeet) ; minimum discharge, 2.0 second-feet August 16.

1915-1926: Maximum stage, 36.8 feet April 26, 1922 (discharge, about 

139,000 second-feet,); no flow November 29, 1922.

DIVERSIONS. Flow at low stages materially affected by diversions above station. 

About 1 mile above mouth of South Concho River there is a storage dam. 

Records of Board of Water Engineers for the State of Texas show that about

II,000 acres has been declared irrigated by water diverted above station 

and about 3,500 acres by diversions below station.

REGULATION. Storage at dam 1 mile above mouth of South Concho River has 

slight effect on flow at station. No regulation of importance on North 

Concho River.

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

below 1,000 second-feet, fairly well defined from 1,000 to 22,000 second-feet, 

and poorly defined from 22,000 to 46,000 second-feet. Operation of waterstage recorder satisfactory, except for short breaks in record. Daily discharge determined by shifting-control method or, on days of considerable 

fluctuation in stage, by averaging discharge for intervals of a day, except 

as noted in footnote to table of daily discharge. Records good for all but 

estimated periods.
100 SURFACE WATER SUPPLY, 1926, PART VIII

Discharge measurements of Concho River near San Angela, Tex., during the year 

ending September 30, 1926

Date

Nov. 20. 

Feb. 13..... __

May 28.........

Gage 

height

Feet 

1.57

1.54

1.90

Discharge

Sec.-ft. 

61 "51

140

Date

May 19 ...

July 2 ...

Gage 

height

Feet 

1.72

.70

1.35

Discharge

Sec.-ft. 

91

7.2

42.0

Date

Sept. 20 

Gage 

height

Feet 

1.12

Discharge

Sec.-ft. 

24.1

0 Measurement does not include flow of irrigation ditch which returns to river above gage and below 

measuring section.

Daily discharge, in second-feet, of Concho River near San Angelo, Tex., for the year 

ending September SO, 1926

Day

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

2.. ____ ....

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

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

5 . .....

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

7 . ...... 

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

9 

10 .........

11 

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

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

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

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

16 

17 .........

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

19 . 

20 

21 ..........

22......

23 

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

25 .........

26 ....... ..

27 ....... 

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

29 

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

31. 

Oct.

57

53

53

52

50

47

' 46

52

212

143

80

71

69

92

217

78

64

63

63

63

63

63

63

59

58

57

55

57

58

Nov.

60

63

64

63

62

71

76

BQ

67

66

69

67

66

62

59

59

60

59

59

62

64

64

63

63

62

62

63

fid

63

62

Dec.

67

69

66

IS

58

59

CO

ro

59

62

59

59

60

62

60

60

62

63

58

59

58

CQ

59

59

60

58

55

58

60

62

Jan.

64

71

71

67

64

66

CQ

67

64

63

64

OA

64

62

71

78

59

69

67

71

67

76

85

01

78

78

78

76

71

Feb.

71

71

67

66

66

66.

66

63

58

1Q

62

CQ

KQ

57

53

54

u

48

48

de,

40

40

38

40

32

98

25

25

Mar.

22

18

16

21

21

25

24

27

26

24

20

25

24

22

20

22

35

34

32

37

7,390

3,800

982

OO1

1,150

436

214

1 «A

143

1,230

335

Apr.

192

143

199

117

105

93

80

94

118

348

192

140

111

108

120

114

108

108

103

289

21,800

3,330

556

326

300

274

247

220

193

166

May

152

140

131

209

1,550

1,160

340

211

166

143

125

120

114

108

103

103

103

96

85

80

81

76

174

112

69

63

125

June

1

1 125

615

289

154

87

76

71

63

53

48

45

38

26

20

23

140

60

45

50

42

37

32

28

31

25

18

15

July

11

7.7

6.0

6.3

7.0

3.8

2.8

2.7

2.8

2.8

2.8

2.8

2.9

2.9

2.9

2.9

2.9

2.9

2.8

3.2

' 3.2

2.3

2.2

131

106

81

32

20

18

31

57

Aug.

41

53

38

32

25 .

26

14

12

8.0

4.4

2.9

2.4

2.2.

2.2

2 1

2.0

2.1

99

827

> 85

22

Sept.

38

28

25

257

174

80

50

77

124

62

43

32

29

27

24

22

18

16

13

11

11

NOTE. Discharge interpolated Apr. 5-6, 25-29, and July 25. Discharge partly estimated Apr. 4, 7, 3 

May 26, June 4, July 26, and Sept. 25. Braced figures show estimated mean discharge for periods included.

Monthly discharge of Concho River near San Angelo, Tex., for the year ending

September 30, 1926

Month

October .-..--..--.-. ...---

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

The year. . ____ . _____ .

Discharge in second-feet

Maximum

217 

76 

69 

85 

71 

7,390 

21,800 

1,550

131

257

21,800

Minimum

46 

59 

55 

59 

25 

16 

80

15 

2.2 

2.0

2.0

Mean

74.5 

63.8 

60.2 

70.0 

52.1 

537 

1,010 

208 

87.0 

18.2 

69.4 

48.5

191

Run-off in 

acre-feet

4,580 

3,790 

3,700 

4,300 

2,900 

33,000 

59,900 

12,800 

5,170 

1,120 

4,270 

2,890

138,000
COLORADO RIVER BASIN 101

CONCHO RIVER NEAR PAINT ROCK, TEX.

LOCATION. At Gulf, Colorado & Santa Fe Railway bridge a quarter of a mile 

below mouth of Kickapoo Creek, \% miles above highway bridge, and 2 miles 

northwest of Paint Rock, Concho County.

DRAINAGE ABE A. 5,530 square miles (measured on topographic maps and base 

map of Texas).

RECORDS AVAILABLE. September 20, 1915, to September 30, 1926,

GAGE. Stevens continuous water-stage recorder attached to downstream end of 

middle bridge pier; inspected by Geological Survey engineers.

DISCHARGE MEASUREMENTS. Made by wading from railroad bridge at gage 

or from highway bridge below gage.

CHANNEL AND CONTROL. Bed is solid rock; permanent. Channel straight for 

500 feet above and below gage. Right bank is solid rock and not subject to 

overflow; left bank subject to overflow during high water. Control during 

low and medium stages is solid rock shoal 400 feet below gage.

EXTREMES OP DISCHARGE. Maximum stage, from water-stage recorder, 18.67 

feet at 3 a. m. April 22 (discharge, about 38,200 second-feet); no flow August 

14-18.

1915-1926: Maximum stage recorded, 27.5 feet at 11 a. m. April 27, 1922 

(discharge not determined); no flow during several periods of every year 

except 1920 and 1921.

DIVERSIONS. Records of the Board of Water Engineers for the State of Texas 

show that about 11,000 acres has been declared irrigated by diversions 

from Concho River, practically all of which is above the station. Flow 

during low stages is materially affected by diversions.

REGULATION. Ten storage dams of small capacity are located between this station and San Angelo. An abandoned dam 12 feet high, known as Fourmile 

Dam, is 4 miles below San Angelo, and a small dam 8 feet high has been 

constructed for storage on the Sims ranch, just above the station. None of 

the dams appreciably affect the flow except during extremely low stages.

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

below 6,000 second-feet, poorly defined from 6,000 to 20,000 second-feet, and 

extended above; extension may be subject to considerable error. Operation 

of water-stage recorder satisfactory, except for short breaks in record. Daily 

discharge determined by shiftingrcontrol method or, on days of considerable 

fluctuation in stage, by averaging discharge for intervals of a day, except as 

noted in footnote to table of daily discharge. Records good below and poor 

above 6,000 second-feet.

Discharge measurements of Concho River near Paint Rock, Tex., during the year ending September 30, 1926

Date

Nov. 21.........

Feb. 13... ...

Mar. 26........

Gage 

height

Feet 

1.61

1.60

3.10

Discharge

Sec.-ft. 

61

55

647

Date

Apr. 28.. .......

Gage 

height

Feet 

2.09

1.88

1.28

Discharge

Sec.-ft. 

197

121

15.8

Date

Sept. 16.. ___

Gage 

height

Feet 

1.72

Discharge

Sec.-ft. 

83
102 SURFACE WATER SUPPLY, 1926, PART VIII

Daily discharge, in second-feet, of Concho River near Paint Rock, Tex., for the year 

ending September 30, 1926

Day

1 

3 

4.. ...

5.. ...

6-- .

8-._..__

9........

10 

11 

12........

13- 

14........

IS........

16. ___ -

17. -.-.

18........

19- ..

20 .

21........

22.. ......

23- 

24 ....

25 

26........

27 _

28 ....

29 

30........

31........

Oct.

61

V>

58

56

55

55

55

53

108

53

156

1 K1

102

85

76

134

182

120

92

76

fiQ

67

70

70

65

65

61

59

58

55

sfi

Nov.

59

61

63

69

72

74

04

82

76

79

72

74

72

72

67

63

63

63

65

61

61

63

61

63

63

63

61

61

61

59

Dec.

65

fiQ

67

63

58

KQ

63K.Q

en

61

63

63

63

63

63

63

KQ

KQ

63

61

58

58

59

61

50

63

KQ

58

58

61

Jan.

63

65

79

72

74

70

67

67

79

74

79

70

70

70

70

70

79

85

78

72

fiQ

PQ

70

' 80

89

7ft

76

74

78

7ft

Feb.

69

67

67

67

63

61

61

61

65

58

KG

55

55

50

£0

47

48

48

Af

47

45

43

41

40

40

00

34

Mar.

32

30

28

25

22

22

99

99

23

22

17

15

15

12

9.7

13

15

18

28

oc

5,010

7 400

1,310

508

866

Qftft

316

201

176

1,760

790

Apr.

322

211

163

137

118

107

99

92

92

350

281

334

115

112

115

112

107

104

QQ

11,500

17, 100

520

342

260

215

193

172

166

May

172

163

148

143

782

2,550

674

306

208

172

151

137

126

123

118

118

115

115

112

102

87

87

126

14.°.

82

79

69

65

61

59

June

63

147

111

1,040

637

252

146

104

85

70

63

56

51

43

39

33

312

102

34

74

PS

38

29

24

20

15

14

12

11

8.8

July

7.4

6.0

5.4

5.0

4.7

4.4

4.4

4.1

4.1

3.8

3.8

3.4

3.4

3.4

3.4

3.1

3.1

2.8

2.8

2.5

2.8

2.5

2.5

2.3

2.5

227

102

43

22

13

8.3

Aug.

5.4

11

19

16

15

10

5.7

3.4

1.8

.7

2.2

.2

.1

.0

.0

.0

.0

.0

1,200

349

105

50

32

24

16

12

11

11

11

9.7

12

Sept.

13

15

20

22

142

182

411

492

185

109

72

56

45

38

109

82

59

44

34

28

25

22

20

17

15

13

13

15

15

16

NOTE. Discharge partly estimated June 17-18 and July 17 to Aug. 4.

Monthly discharge of Concho River near Paint Rock, Tex., for the year

September 30, 1926

Month

October _____________________________

December __ ... __ ..... _ . .. ... ...

Jannary. _ ___ _____________ _________

March.. _________ ___ ____ . . __ ..

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

June.... _________ ___________ _____ ..

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

August. .. ___________________________

Discharge in second-feet

Maximum

182 

94 

69 

85 

69 

7,400 

17, 100 

2,550 

1,040 

227 

1,200 

492

17,100

Minimum

53 

59 

58 

63 

34 

9.7 

92 

59 

8:8 

2.3 

0 

13

0

Mean

80.1 

67.0 

61.2 

72.7 

52.4 

634 

1,160 

242 

123 

16.4 

62.4 

77.6

221

Run-off in 

acre-feet

4,920 

3,990 

3,760 

4,470 

2,910 

39,000 

69, 000 

14,900 

7,330 

1,010 

3,830 

4,620

160,000

NOETH CONCHO EIVEB NEAE CAEISBAD, TEX.

LOCATION. Just above State Sanitarium dam, 1J4 miles below mouth of Live 

Oak Creek, and 2 miles above Carlsbad, Tom Green County.

DRAINAGE AREA. 1,530 square miles (measured on base map of Texas).

RECORDS AVAILABLE. March 27, 1924, to September 30, 1926.

GAGE. Stevens continuous recorder attached to left side of dam; attended by 

United States Geological Survey engineers.
COLORADO EIVEE BASIN 103

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

below dam.

CHANNEL AND CONTROL. Bed of rock, overlain in places by gravel and silt; with 

large pecan trees along edge of stream. Channel straight for 600 feet above 

and 400 feet below gage. Banks covered with brush and trees and subject 

to overflow at extremely high stages. At about gage height 12.5 feet and discharge 25,000 second-feet water runs over crest of banks on both sides of 

stream into draws, which do not drain back into river but form lakes. Control is concrete dam just below gage; permanent. A notch which is part of 

a fish ladder in the crest of dam is closed during very dry periods. Point of 

zero flow, with notch open, 1.67 feet; with notch closed, 2.21 feet.

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

recorder, 14.1 feet at 4.10 a. m. March 21 (discharge, about 33,500 secondfeet); minimum stage, 1.79 feet from 8 p. m. September 3 to 7 a. m. September 4 (discharge, 0.10 second-foot).

1924-1926: Maximum stage recorded, 14.45 feet at 1.10 p. m. May 30, 

1925 (discharge, about 35,600 second-feet); no flow for several periods.

DIVERSIONS. Several pumps in drainage basin above station are reported to 

have a combined capacity of 40 second-feet; amount of water actually 

diverted not known, but flow materially affected at low stages.

REGULATION. None.

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

defined below 3,000 seeond-feet and extended above on the basis of one 

slope measurement at a stage of 14.45 feet; extension may be subject to 

considerable error. Operation of water-stage recorder satisfactory, except 

for short breaks in record. Daily discharge determined by applying mean 

daily gage heights to rating table or, on days of considerable fluctuation in 

stage, by averaging discharge for intervals of a day, except as noted in footnote to table of daily discharge. Records for low stages fair; for high stages, 

poor.

Discharge measurements of North Concho River near Carlsbad, Tex., during the 

year ending September 80, 1926

Date

Feb. 15 

Mar. 27 . 

Gage 

height

Feel 

2.28

2.46

Discharge

Sec.-ft. 

8.5

33.2

Date Gage 

height

Feet 

2.53

2.22

Discharge

Sec.-ft. 

45.4

3.27

Date

Aug. 23 

Sept. 18.-. 

Gage 

height

Feet 

1.92

2.20

Discharge

Sec.-ft. 

 0.30

2.85

1 Estimated.
104 SURFACE WATER SUPPLY, 1926, PART VIII

Daily discharge, in second-feet, of North Concho River near Carlsbad, Tex., for the 

year ending September SO, 1926

Day

1

2 ... ... _i 

4

5

6 .

7

8 

9

10 

11 

12... - . 

iq

14 

15 

16 ------

17 

18 ..

19

20 

21

22 

23 

24 --- .

25 

26- 

27 

28 

29. 

30 

31 

Oct.

4.2

4.2

3.4

3.4

2.5

2.5

2.5

2.5

2.5

2.5

3.4

4.2

5.9

6.8

7.6

7.6

6.8

6.8

6.8

5.9

5.9

6.8

8.4

10

10

10

8.4

8.4

8.4

9.3

9.3

Nov.

9.3

11

11

16

21

19

22

21

23

26

26

23

21

22

22

22

25

26

23

17

15

13

12

9.3

10

10

11

Dec.

12

15

13

10

10

10

9.6

9.3

8.4

8.4

8.4

Q 1

9.3

9.3

10

11

11

11

12

12

13

15

15

15

15

13

13

15

Jan.

11

10

9 7

Q n

8.4

7.6

6.8

8.4

12

13

15

16

17

17

21

21

19

1Q

19

21

1Q

18

18

17

17

16

16

16

15

15

Feb.

10

12

1 9

10

10

11

10

10

9.3

10

9

O

9.3

9.3

10

10

9.3

10

12

13

13

13

15

Mar.

15

16

17

17

17

17

17

17

17

17

17

17

17

21

18

19

1,190

282 on

116

45

33

31

334

759

76

Apr.

41

33

29

28

26

25

25

25

26

123

34

23

23

23

23

23

23

23

23

855

66

36

23

19

19

17

19

33

25

May

22

21

1Q

in

66

61

23

22

21

21

19

19

21

19

19

19

19

19

19

19

18

17

17

17

17

16

13

13

13

15

June

23

19

18

198

87

29

18

15

12

11

11

10

10

8.4

7.6

7.6

6.8

5.9

6.8

6.8

8.4

8.4

6.8

6.8

5.0

4.2

4.2

3.4

3.4

2.5

July

2.3

2.3

9 ft

1.6

1.6

1.2

.6

.6

.4

.5

.5

.5

.5

.5

.4

.4

.4

.4

.3

.3

4.9

12

10

16

9.3

5.0

3.4

12

41

Aug.

01

18

10

5.9

4.2

2.5

1.8

.7

.3

.3

.2

.2

.2

.2

11

2.5

1.1

.3

.2

11

13

1.4

.4

.2

.2

.3

.3

.3

Sept.

0.2

.2

.1

CQO

7QQ

161

18

9

O

6.8

5.9

5.0

10

7.6

4.2

3.4

2.5

2.5

2.3

2.3

2.0

2.0

1.6

.5

.4

.4

.7

1.6

2.0

1.6

NOTE. Discharge interpolated or partly estimated Oct. 9-16, Dec. 8, 25-26, Jan. 2-6, 23-29.

Monthly discharge of North Concho River near Carlsbad, Tex., for the year ending

September SO, 1926

Month

Mnvp.mhAr

February

April 

May

July

Discharge in second-feet

Maximum

10 

26 

15 

21 

15 

6,230 

855 

66 

198 

41 

31 

799

6,230

Minimum

2.5 

9.3 

8.4 

6.8 

9.3 

15 

17 

13 

2.5 

.3 

.2 

.1

.1

Mean

6.03 

17.8 

11.6 

15.0 

11.0 

307 

76.0 

21.2 

18.8 

4.63 

3.82 

56.7

46.2

Run-off in 

acre-feet

371 

1,060 

716 

922 

610 

18,900 

4,520 

1,310 

1,120 

284 

235 

3,380

33,400

NORTH CONCHO RIVER AT SAN ANGELO, TEX.

LOCATION. At county concrete viaduct in San Angelo, Tom Green County, 1

mile above confluence with South Concho River. 

DRAINAGE AREA. 1,800 square miles (measured on topographic maps and base

map of Texas). 

RECORDS AVAILABLE. October 27, 1915, to September 30, 1926.
COLORADO RIVER BASIN 105

GAGE. Stevens continuous water-stage recorder attached to left side of web of 

third pier of viaduct from left bank; inspected by Geological Survey engineers. Temporary staff gage used for low stages throughout year.

DISCHABGE MEASUBEMENTS. Made from second highway bridge upstream from 

gage or by wading.

CHANNEL AND CONTBOL. Bed of solid rock which is to some extent covered in 

high-water channel with grass and moss; permanent. Channel straight 

for 800 feet above and 400 feet below gage. Banks of rock and clay; subject 

to overflow during high floods. Control is concrete dam, about 4}£ feet high, 

20 feet below gage and at downstream side of viaduct, permanent. Portion 

of this dam removed temporarily throughout the year, erratically changing 

stage-discharge relation. Backwater probably occurs at this station when 

the Concho reaches a stage of 25 feet.

EXTBEMES OP DISCHABGE. Maximum stage, from water-stage recorder, 12.8 

feet March 21 (discharge not determined); probably no flow for several 

periods.

1916-1926: Maximum stage, from water-stage recorder, 19.3 feet at 

7.30 p. m. April 26, 1922 (discharge not determined; backwater from Concho 

River probably existed); no flow for several periods.

DIVEBSIONS. Records of the Board of Water Engineers for the State of Texas 

show that about 600 acres has been declared irrigated by diversions from 

North Concho River above station.

REGULATION. None of importance.

ACCUBACT. Stage-discharge relation not permanent. Two new rating curves, 

one applicable October 1 to April 21 and the other April 22 to September 30, 

were used for low-water periods in obtaining flow through gap in the dam, 

and the old standard curve was used in obtaining flow over crest of dam that 

was the former control. Low-water curves poorly denned below 150 secondfeet, and standard curve fairly well defined below 1,100 second-feet and 

poorly defined from 1,100 to 14,000 second-feet. Operation of water-stage 

recorder not satisfactory, because of varying opening in the dam that forms 

the control, and much of the time discharge estimated or determined from 

poor gage readings. Daily discharge determined by shifting-control method 

or, on days of considerable fluctuation in stage, by averaging discharge for 

intervals of a day, or by estimation. At stage when water flows over crest 

of dam, discharge is sum of the flow through gap in the dam and the flow 

over dam obtained from the standard curve formerly used. Daily and 

monthly discharge not sufficiently accurate for publication.

Estimated run-off for year, 50,300 acre-feet.

Discharge measurements of North Concho River at San Angelo, Tex., during the year 

ending September SO, 1926

Date

Nov. 21.........

Feb. 13. .

Mar. 28 

Apr. 7 .... .

Gage 

height

Feet 

"3.13

"3.17

"5.32

 4.82

Discharge

Sec.-ft. 

4.50

8.58

44.8

24.4

Date

July 2..........

July 8 .....

Gage 

height

Feet 

"3.90

"4.60

"4.54

"3.68

Discharge

Sec.-ft. 

28.4

2.39

'.25

21.4

DateA HIT 11

Aug. 23... .-

Gage 

height

Feet 

«2.38

«2.32

"2.37

a O Kft

Discharge

Sec.-ft. 

&0.50 &.05

'.30

1.48

» Gage heights are from auxiliary gage which is being used while hole is in the dam. Datum of auxiliary 

gage is 5.93 feet below permanent gage. 

« Estimated.
106 SURFACE WATER SUPPLY, 1926, PART VIII 

PECAN BAYOU AT BEOWNWOOD, TEX.

LOCATION. At pumping plant of city of Brownwood, 800 feet above lower dam, 

three-eighths mile above Brownwood-Comanche highway bridge, and 1 mile 

north of Brownwood, Brown County.

DRAINAGE AREA. 1,610 square miles (measured on topographic maps and base 

map of Texas).

RECORDS AVAILABLE. May 24, 1917, to June 30, 1918; October 17, 1923, to 

September 30, 1926.

GAGE. Combined inclined and vertical staff gage attached to trees on right bank 

at rear and upstream end of city pumping plant; read by C. N. Davis and 

L. O. Davis, employees of the city of Brownwood.

DISCHARGE MEASUREMENTS. Made from highway bridge three-eighths mile 

below gage, from cable at gage, or by wading.

CHANNEL AND CONTROL. Bed of mud and clay. Channel straight above and 

below station. Banks wooded and subject to overflow during extremely high 

stages. At a stage of about 12 feet there is flow through sloughs to the right 

and left which leave the bayou above the gage and return below the gage. 

City dam, 800 feet below gage, is control for stages when flow is confined 

within banks; dam has opening of 140 feet. When banks are submerged 

water spreads over wide area and control not known.

EXTREMES OP DISCHARGE. Maximum stage recorded during year, 9.00 feet 

at 8 a. m. April 22 (discharge, 10,300 second-feet); no flow during several 

periods.

1917-1918, 1923-1926: Maximum stage recorded, 9.90 feet at 1 p. m. 

May 14, 1924 (discharge, from extension of rating curve, 12,100 second-feet); 

no flow for several periods.

DIVERSIONS. Records of the Board of Water Engineers for the State of Texas 

show that 590 acres has been declared irrigated above station. City of 

Brownwood pumps water just below station. Two small pumps below 

control, but amount of water diverted not known.

REGULATION. Flow at station regulated during periods of normal flow by storage 

reservoir and pumping plants above. City of Brownwood has a dam 2 miles 

above station to impound water for municipal use. Water is released from 

this reservoir when supply is short in pond at gage from which the city supply 

is pumped. Backwater from lower dam extends to upper dam. No regulation of importance from irrigation above station.

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

below 4,000 second-feet and poorly defined from 4,000 to 12,000 second-feet. 

Gage read to hundredths twice daily and oftener during floods. Daily 

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

on days of considerable fluctuation in stage, by averaging discharge for intervals of a day, using gage-height graph based on daily gage readings. 

Records fair.

The following discharge measurements were made:

May 9: Gage height, 1.05 feet; discharge, 21.8 second-feet.

August 14: Gage height, 0.60 foot; no flow.

September 23: Gage height, 0.78 foot; no flow.
COLORADO RIVER BASIN 107

Daily discharge, in second-feet, of Pecan Bayou at Brownwood, Tex., for the year 

ending September 30, 1926

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.

234

470

130

3.800

486

159

103

34

19

11

Q 0

8.0

6.2

.1

Nov.

32

1,680

154

135

90

69

56

49

37

22

9.0

6.2

3.2

2.6

1.2

.3

Jan.

1,610

154

56

28

37

40

28

15

8.0

2 1

.6

Mar.

112

267

86

s/t

88

226

99

37

176

360

Apr.

234

103

56

40

28

19

11

8.0

319

4,260

1,290

321

154

112

90

60

46

34

56

52

2,610

6,630

1,020

301

149

Q4

52

40

28

22

May

17

17

46

17

47

621

135

46

32

107

22

15

9.0

7.0

5.4

3.9

3.9

1.6

3.9

9.0

5.4

3.2

1.2

1.0

.6

June

137

252

123

1,380

1,530

185

94

52

28

15

8.0

4.6

35

1,860

202

40

19

11

2,250

665

180

103

78

40

17

7.0

3.9

3.9

3.9

2.6

July

1.6

1.0

.6

.2

.2

889

761

257

103

52

28

112

40

19

9.0

5.4

1.6

.2

387

441

196

94

242

135

78

52

22

46

Aug.

28

49

56

28

11

5.4

2.1

.8

.1

.4

Sept.

1,590

4,960

540

21299'

65

37

158.01

5.4

3.2

1.6

.8

.2

NOTE. No flow on days for which no discharge is shown.

Monthly discharge of Pecan Bayou at Brownwood, Tex., for the year ending:

September SO, 1926

Month

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

Discharge in second-feet

Maximum

3,800 

1,680 

1,610 

360 

6,630 

621 

2,250 

889 

56 

4,960

6,630

Minimum

0.0 

.0 

.0 

.0 

8.0 

.0 

2.6 

.0 

.0 

.0

.0

Mean

177 

78.2 

63.8 

47.9 

608 

38.0 

311 

128 

5.83: 

251

142

Run-off In 

acre-feet

10,900 

4,650 

3,920 

2,950 

36,200 

2,330 

18, 500 

7,880 3591 

14,900

103,00ft

SAN SABA RIVER AT MSHAED, TSX.

LOCATION. 1,000 feet above steel highway bridge in Menard, Menard County,,

and half a mile below mouth of Las Moras Creek. 

DRAINAGE AREA. 1,150 square miles (measured on topographic maps and base

map of Texas).

RECORDS AVAILABLE. September 14, 1915, to September 30, 1926. 

GAGE. Combined inclined and vertical staff on right bank; read by Mrs. O. D

Parker.

96272 30 8
108 SURFACE WATER SUPPLY, 1926, PART VIII

DISHARGE MEASUREMENTS. Made by wading or from highway bridge.

CHANNEL AND CONTROL. Channel straight 450 feet above and 250 feet below, 

gage. Bed of rock and gravel; fairly clean and permanent. Banks of rock 

and clay; wooded; right bank not subject to overflow; left bank subject to 

overflow at high stages. Control is rock and gravel shoal 100 feet below gage; 

fairly permanent.

.EXTREMES OF DISCHARGE. Maximum stage recorded during year, 5.00 feet at 

9 a. m. June 2 (discharge, 863 second-feet); minimum stage, 0.66 foot at 

5 p. m. August 11 (discharge, 2.6 second-feet).

1915-1926: Maximum stage recorded, 13.6 feet at 2.30 a. m. September 

16, 1915 (discharge, about 8,610 second-feet); no flow July 12-14 and 19-31, 

August 1-4 and 26-31, 1918.

DIVERSIONS. Considerable land is irrigated with water diverted above station. 

Noyes Canal, on right bank of river, which serves a considerable area, 

diverts a short distance above station. Records of the Board of Water 

Engineers for the State of Texas show that about 4,300 acres has been 

declared irrigated above station and about 7,700 acres below station.

REGULATION. Flow controlled at low stages during irrigation season by diversions 

to Noyes Canal.

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

from 3 to 85 second-feet and extended above through one slope measurement 

made at a stage of 11.18 feet; extension may be subject to considerable error. 

Gage read to hundredths twice daily. Daily discharge determined by 

shifting-control method or, on days of considerable fluctuation in stage, 

by averaging discharge for intervals of a day, using gage-height graph 

based on daily gage readings. Records good.

Discharge measurements of San Saba River at Menard, Tex., during the year ending

September 80, 1926

Date

Oct. 8- ...... .

Nov. 19 

Gage 

height

Feet 

1.15

1.58

Discharge

Sec.-ft. 

18.0

51

Date

Apr. 27 ..... .

Gage 

height

Feet 

1.60

1.58

Discharge

Sec.-ft. 

53

48.2

Date

Aug. 19 _ - _ --

Gage 

height

Feet 

1.10

.91

Discharge

Sec.-ft. 

15.0

3.5

Daily discharge, in second-feet, of San Saba River at Menard, Tex., for the year 

ending September SO, 1926

Day

1... ... 

2 ... 

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

4. __ - 

5 .... .... 

7 .- 

8 ' 

9 

10 

11 

12. - 

13 .! 

14 _ 

15 ___ . _ 

16 

17 

18 

19 

20 

Oct.

27

37

29

21

35

32 *23

18

18

27

21

21

30

23

40

141

63

49

47

44

Nov.

46

46

49

48

48

62

75

58

56

51

50

50

50

49

48

48

50

51

51

50

Dec.

53

. 53

41

27

27

27

28

28

27

27

27

27

28

28

27

27

27

30

28

28

Jan.

30

30

31

31

32

33

34

35

35

37

55

55

56

56

60

68

69

68

Feb.

57

57

56

55

55

57

57

56

56

55

55

54

53

53

53

52

52

51

51

51

Mar.

40

32

26

27

26

24

24

25

26

27

27

26

26

26

25

27

34

32

31

29

Apr.

54

53

54

55

56

57

55

53

53

53

53

53

53

53

61

55

51

51

50

50

May

47

30

24

24

30

31

26

25

23

21

20

20

20

20

20

20

18

15

14

14

June

6.5

481

162

145

22

68

57

31

14

14

13

11

9.5

9.0

9.0

8.4

8.4

167

359

129

July

9.0

9.0

8.4

7.9

7.9

7.6

7.6

7.3

7.3

6.8

6.5

6.0

95

85

9.0

8.2

6.5

5.4

4.2

6.2

Aug.

11

10

9.0

3.1

10

8.2

7.3

6.5

5.4

3.5

2.8

19

5.4

4.0

3.8

3.5

3.2

3.2

3.1

3.1

Sept.

7.6

7.6

8.4

8.2

8.2

9.0

9.5

9.0

9.0

8.4

8.4

8.4

8.4

7.9

7.9

7.3

6.5

7.3

7.6

6.8
 COLORADO RIVER BASIN 109

Daily discharge,.in second-feet, of San Saba River at Menard, Tex., for the year 

ending September 30, 1926 Continued

Day

21 

22.. . _ -

.23 

.24 

.25 

36 

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

3S~.- ...... _ .

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

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

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

Oct.

 M

46

46

45

45

46

46

46

47

.47

46

Nov.

»

"50

-50

50 '50

49

49 "SO

51 "52

53

Dec.

28

29

29

29

29

28

28

27

29

35

30

Jan.

142

130

71

61

61

64

67

62

59

59

58

Feb.

51

51

53

52

51

51

50

50

Mar.

30

30

30

30

29

29

29

29

29

30

57

Apr.

62

61

55

50

49

49

48

47

51

47

May

14

12

12

16

12

9.0

8.4

7.9

8.4

8.2

6.8

June

19

23

27

20

16

16

15

14

13

12

July

5.8

209

192

45

31

30

26

18

15

12

13

Aug.

3.0

3.0

3.0

3.0

3.1

3.3

3.3

9.5

10

9.0

8.7

Sept.

6.0

5.2

4.8

4.1

3.8

3.6

7.6

37

34

33

Monthly discharge qf San Saba River at Menard, Tex., for the year ending September

SO, 1926

Month

October _________________________

December ____ _________ __ ___ . .

February- _______ . . .................

March. _________________ . ..............

April... .. ...

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

-July ...

August ______ __________ . __________ .

Discharge in second-feet

Maximum

141 

75 

53 

142 

57 

57 

62 

47 

481 

209 

19 

37

481

Minimum

18 

46 

27 

30 

50 

24 

47 

6.8 

6.5 

4.2 

2.8 

3.6

2.8

Mean

40.3 

51.3 

30.2 

57.1 

53.4 

29.4 

53.1 

18.6 

63.3 

29.3 

5.94 

10.0

36.6

Run-ofl in 

acre-feet

2,480 

3,050 

1,860 

3,510 

2,970 

1,810 

3,160 

1,140 

3,770 

1,800 

365 

596

26,500

SAN SABA RIVER NEAR SAN SABA, TEX.

XOCATION. 200 feet above Beveridge highway bridge, 2 miles northwest of San 

Saba, San Saba County, and 3 miles below mouth of Richland Creek.

.DRAINAGE AREA. 3,040 square miles (measured on topographic maps arid base 

map of Texas).

.RECORDS AVAILABLE. December 30, 1904, to December 31, 1906; September 11, 

1915, to September 30, 1926. Miscellaneous discharge measurements prior 

to.1904.

'GAGE. Vertical and inclined staff on right bank; read by G. M. Pool.

.DISCHARGE MEASUREMENTS. Made by wading or from bridge.

'CHANNEL AND CONTROL. Channel straight for 100 feet above and below station. 

Bed of rock and gravel; shifts. Left bank of gravel and clay, wooded, and 

not subject to overflow. Right bank of clay and gravel, wooded, and subject 

to overflow during high water. A shoal at a ford about 75 feet below gage 

serves as control during medium and low stages; shifts.

.EXTREMES OP DISCHARGE. Maximum stage recorded during year, 23.8 feet at 

6 p. m. October 16 (discharge, 8,640 second-feet); minimum stage, 1.30 feet 

at 7.30 p. m. July 9 (discharge, 26 second-feet).

4904-1906, 1915-1926: Maximum stage recorded, about 37.0 feet April 26 

or 27,1922, determined from flood marks on gage (discharge not determined); 

mo flow August 9 and 10, 1918.
110 SURFACE WATER SUPPLY, 1926, PART VIII

DIVERSIONS. Considerable water is diverted from stream and tributaries abovestation. There are also diversions below station, but none in the vicinity of" 

station. Flood water from Brady Creek at Brady is stored for municipal; 

uses; capacity of reservoir not known, but probably small. Records of 

Board of Water Engineers for the State of Texas show that about 9,300 acres. 

has been declared irrigated by diversions above station and about 2,700 acres; 

by diversions below station.

REGULATION. None.

ACCURACY. Stage-discharge relation not permanent. Rating curve well defined! 

between 15 and 2,000 second-feet and fairly well defined between 2,000 and 

8,760 second-feet. Gage read to hundredths twice daily. Daily dischargeascertained by shifting-control method or, on days of considerable fluctuation 

in stage, by averaging discharge for intervals of a day, using gage-height 

graph based on daily gage readings. Records fair.

Discharge measurements of San Saba River near San Saba, Tex.t during the year 

ending September 30, 1926

Date

Oct. 17...... 

Nov. 25.... __ .

Gage 

height

Feet 

7.16

2.00

Discharge

Sec.-ft.

128

Date

IMsv 24

Gage 

height

Feet

1 Qfi

2.18

Discharge

Sec.-ft.

152

Date

Aug. 16.. 

Gage 

height

Feet 

1.42

Discharge

Sec.-ft. 

40.2:

Daily discharge, in second-feet, of San Saba River near San Saba, Tex., for the yearending September 30, 1926

Day

1 .... - ...

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

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

^L... ............

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

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.

76

76

76

73

67

72

67

67

67

314

358

168

652

3,490

1,100

5,320

2,620

629

358

251

198

178

158

262

251

198

148

136

124

. 124

120

Nov.

118

117

120

124

120

336

1,130

583

314

230

209

198

158

148

140

132

136

132

134

130

130

128

128

128

124

124

124

120

Dec.

120

120

118

117

117

109

109

109

109

105

105

101

101

101

103

113

109

105

105

105

101

101

101

08

105

101

Jan.

101

136

126

120

124

120

115

111

101

107

109

109

105

109

168

158

148

199

14S

188

272

240

220

209

209

209

198

188

188

Feb.

17S

168

168

168

1 18

158

168

168

168

168

168

168

158

158

158

158

148

148

146

146

146

146

142

138

134

Mar.

134

130

148 i *y*

158

168

158 IQQ

149

209

141

134

130

130

168

178

1 CQ

148

140

132

148

251

178

148

148

188

230

Apr.

188

168

158

158

14S

148

148

572

230

230

158

209

230

178

158

146

148

198

293

251

262

168

148

138

132

132

May

146

188

148

132

314

446

402

220

188

148

142

120

122

117

107

111

101

107

96

94

90

90

87

83

80

64

70

67

64

62

61

June

55

57

320

424

314

220

168

148

117

100

87

87

80

103

209

132

76

178

288

92

127

251

146

158

172

206

117

85

82

72

July

70

68

60

55

55

52

44

32

31

35

40

33

45

44

41

38

40

38

50

43

51

135

591

675

491

251

148

113

92

72

72

Aug.

70

60

73

61

53

50

4&

42

40

42

42

40

36

41

37

40

36

36

36

36

35

37

41

45

50

46

60

60

58

53

46

Sept.

41

44

42:

40

41

41

67

73

64-

60'

62:

66

58

53.

4»>

46

46

48

46

46

46

46

46

46.

46

46-

46

46

46.

4fr.
COLORADO RIVER BASIN 111

Monthly 'discharge of San Saba River near San Saba, Tex., for the year ending

September 30, 1926

Month

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

July.. . 

The year ____________ .. __________

Discharge in second-feet

Maximum

5,320 

1,130 

120 

272 

178 

251 

572 

446 

424 

675 

73 

73

5,320

Minimum

67 

117 

98 

101 

130 

130 

132 

61 

55 

31 

35 

40

31

Mean

574 

201 

108 

152 

157 

156 

202 

138 

156 

116 

46.8 

49.9

172

Run-off in 

acre-feet

35,300 

12,000 

6,620 

9,360 

8,720 

9,610 

12,000 

8,460 

9,260 

7,150 

2,880 

2,970

124, 000

NOYES CANAL AT MENARD, TEX.

LOCATION. 4 miles below head gates and dam near gaging station on San Saba 

River and .1,000 feet above steel highway bridge in Menard, Menard County.

RECORDS AVAILABLE. March 13, 1924, to September 30, 1926.

GAGE. Vertical staff on right bank; read by Mrs. O. D. Parker.

DISCHARGE MEASUREMENTS. Made by wading near gage.

CHANNEL AND CONTROL. Bed and banks of earth. Channel straight above and 

below station. Control bed and banks of canal.

.EXTREMES OF DISCHARGE. Maximum stage recorded during year, 1.80 feet at 

6 p. m. December 3 (discharge, 38 second-feet); no flow for several periods. 

1924-1926: Maximum stage, 2.24 feet at 8 a. m. April 15, 1925 (discharge, 

50 second-feet); no flow for several periods.

^DIVERSIONS. Small diversions above; amount not known.

REGULATION. Flow regulated by head gates.

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

for all stages. Gage read to hundredths twice daily. Daily discharge 

determined by applying mean daily gage height to rating table, or by shiftingcontrol method, or, on days of considerable and rapid fluctuation in stage, 

by averaging discharge for intervals of a day, using gage-height graph based 

on daily gage readings. Records fair.

Canal diverts from right bank 4 miles above Menard, and water is used for 

irrigation near Menard.

Discharge measurements of Noyes Canal at Menard, Tex., during the year ending

September 30, 1926

Date

Oct. 2..........

Do- __

Do.. _ Do __

Do ........

Do ........

Do ........

Gage 

height

Feet 

0.69

97

1.09

1.25

i 31

1.38

1.44

1.42

Discharge

Sec.-ft. 

11.0

18 9

21.7

24.7

Oft K

27.6

27.0

27.7

Date

Oct. 3 ....

Do 

Do..... ....

DoDo 

DoDo 

Do 

Gage 

height

Feet 

1.36

1.29

1.18

1.05

.96

.87

.68

.50

Discharge

Sec.-ft. 

27.6

25.2

21.5

19.9

18.9

10.4

6.4

Date

Oct. 3. - _ .

DoDo .

DoDo 

Gage 

height

Feet 

0.44

.39

.32

.24

.18

1.28

1.48

Discharge

Sec.-ft. 

5.4

4.3

2.82

1.64

.86

22.8

25.0
112 SURFACE WATER SUPPLY, 192&, PART VIII.

Daily discharge, in second-feet, of Noyes Canal at Menard, Tex., for the year ending

September 30, 1926

Day

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

2.., _ . - .- ..

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

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

5

6__ .-....____.

7

8.-. ....... ...............

9-- . ......... ..........

V).. ..........................

11.. ...... .-_ . ..___..

12-.. ..... ...........

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

14... .-... ...........

15- ...... .......

16-.: .

17 

18._. -..... ...... .......

19, .. . . ....

20- .. ,.... ......

21. .. - . _____

22-. . . 

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

24. ....... ......... .. ..- 

25 ----.. ___ ....... __ .....

26- 

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

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

29

30--...-.-.-.-.-............

31- 

Oct.

16

9.1

15

24

2.2

26

27

26

26

26

26

28

2&

24

Dec.

30

33

QO

30

28

28

28

28

9Q

28

28

29

27

28

29

29

28

27

27

28

29

27

28

28

27

Jan.

2S

26

28

28

28

27

26

26

26

8.7

Mar.

27

28

28

28

28

27

27

26

27

27

27

28

27

26

9>

26

28

27

27

28

27

28

27

27

28

27

27

27

28

26

May

7.8

23

23

24

2326-

23

23

24

24

26

26

24

26

26

24

23

24

23

23

23

23.

24

24

24

24

23

28-

28

28

June

28

28

22

26

27

26

24

24

24

26

27

28

26

24

26

27

24

24

24

24

24

24 "24

July

24

24

24

27

24

24

23

23

24

24

24

24

26

24

24

24

23

23

24

. 24

2327;

24

24

22

24

2ff 2e

27

Aug.

24

26

24

24

26

24

24

24

23

23

23

26

24

24

24

24

24

24

24

24

26

23

24

24

24

26

26

27

27

27.

27

Sept.

23

23

27.

27

26.

26.

28

24:

24

26

26.

26

24

24

25

24.

26

24

24

24.

26

26

26

24

26

268. a

NOTE. No flow on days for which discharge is not given.

Monthly discharge of Noyes Canal at Menard, Tex.,.f&r the year, ending,September

30, 1926

Month

October (14 days).. ____________________

December (29 days) ____ ... _ _ ____ . __ .......

March (30 days). __ ......

May (30 days) .. . __ . _____ ___._.____...

July (29 days) . _.. . __ .... ... _ -

September (27 days) . ____ _ _ ____________

The year ___________________ ____

Discharge in second-feet

Maximum

28 

33. 

28 

28 

28 

28 

27 

27 

28

Minimum

2.2 

26

8.7 

26 

7.8 

22: 

22 

23 

8.0

Mean

21.5 

28". 2 

251. 2 

2Z.2 

23.7 

2£4 

24.3 

24.6 

24' 9

Run-off in 

acre-feet

598 

1,629 490* 

1-620- 

1, 410 l,28D-> 

1,400- 

1,520. 

1,330

11,300

NORTH IIANO RIVER NEAR JUNCTION, TEX.

LOCATION. 500 feet above remains of old Wilson Damj 1 mile below mouth of"

Bear Creek, 2% miles above North Llano highway bridge,. and 3 miles;

northwest of Junction, Kimble County. 

DRAINAGE AREA. 914 square miles (measured cm topographic maps and basemap of Texas).

RECORDS AVAILABLE. September 14, 1915, to September 30, 1926. 

GAGE. Au continuous water-stage recorder on left bank;:attended-.by Gilfordi

Evans.
COLORADO RIVER BASIN us

DISCHARGE MEASUREMENTS. Made by wading or from highway bridge 1% 

miles below station.

CHANNEL AND CONTROL. Bed is solid rock. Channel is straight series of pools 

and rapids above and below station for 400 feet. One channel at all stages. 

Left bank not subject to overflow. Right bank wooded and subject tooverflow during high stages. Current sluggish at gage during low and 

medium stages. Solid-rock ledge of about 2-foot vertical fall at site of 

old dam is control for medium and low stages; permanent, except for slight 

effect from accumulation of moss during low stages.

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

recorder, 8.80 feet at 3.40 a. m. October 16 (discharge, 9,030 second-feet); 

minimum stage, 0.92 foot at 6-12 p. m. September 30 (discharge, 0.70 secondfoot).

1915-1926: Maximum stage recorded, 23 feet about midnight April 24, 

1923 (discharge, 43,100 second-feet; determined from extension of rating 

curve and may be subject to considerable error); no flow during several 

periods.

DIVERSIONS. Records of the Board of Water Engineers for the State of Texas 

show that about 1,200 acres has been declared irrigated by diversions 

above station. During low stages such diversions materially reduce flow 

at station.

REGULATION. No indication that flow at station is regulated.

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

below 1,400 second-feet and poorly defined from 1,400 to 34,000 secondfeet. Operation of water-stage recorder satisfactory, except for short 

breaks in the record. Daily discharge determined by applying mean daily 

gage heights to rating table or, on days of considerable fluctuation in stage, 

by averaging discharge for intervals of a day, except as noted in footnote 

to table of daily discharge. Records good, except for estimated periods.

Discharge measurements of North Llano River near Junction, Tex., during the year 

ending September 80, 1926

Date

Oct. 8. 

Nov. 18 

Feb. 21 

Gage 

height.

Feet 

1.25

1.38

1.34

Discharge

Sec.-ft. 

13.0

30.1

20.4

Date

Apr. 27 

Gage 

height

Feet 

1.35

1.32 i 31

Discharge

Sec.-ft. 

27.8

19.7 ion

Date

July 27. 

Aug. 19 

Sept. 10 . 

Gage 

height

Feet 

1.14

1.00

.98

Discharge

Sec.-ft. 

5.85'

1.2&

"1.00-

 Estimated.

Daily discharge, in second-feet, of North Llano River near Junction, Tex., for the' 

year ending September SO, 1926

Day

1 __

2 ........

3 .....

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

5... _____ . .

6... _________

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

8 ._..._,..._

9

10 .

Oct.

14

14

14

14

14

14

14

14

14

14

Nov.

34

34

34

33

32

48

55

46

41

41

Dec.

00

32

01

29

29

90

90

31

90

29

Jan.

VA

34

36

36

36

34

3d

34

O^

32

Feb.

00

32

00

00

00

00

31

31

31

31

Mar.

oq

2300

OK

29

04

O^

32

29

34

Apr.

01

01

90

90

90

27

27

27

27

25

May

22

22

25

070

106

76

60

53

48

46

June

17

23

oq

16

14

10

I 10

July

10

Aug.

4.5

3.7

3.5

3.2

2.7

1.4

.9

1.3

1.7

1.7

Sept.

1.2

1.2

1.3

1.3-

1.3

1.3

1.3

1.3,

1.3

1.2
114 SURFACE WATER SUPPLY, 1926, PART VIII

Daily discharge, in second-feet, of North Llano River near Junction, Tex., for 

year ending September 30, 1926 Continued

Day

11 ______ . .

12 

13 

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

15 

16 

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

18 

19.. ....

20 

21. 

22

23 

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

25 

 26 

27 

28 

29..... ....

30. ,-

31. _ .

Oct.

14

14

208

86

43

1,910

98

73

63

60

CQ

48

50

4ft

43

41

36

34

34

34

Nov.

38

38

34

34

00

32

32

32

32

QO

32

34

34

32

qo

qo

34

00

32

32

Dec.

29

Q1

31

01

32

34

°.4

36

01

31

31

qo

qo

qo

qo

34

34

34

34

34

Jan.

32

32

9O

31

01

31

34

3490

9.1

99

31

99

90

99

32

99

39

32

39

39

Feb.

29

on

27

25

OK

OK

97

OK

25

oq

oq

00

OQ

23

23

Mar.

34

qo

29

29

OQ

31

43

41

00

38

36

. 34

43

36

36

OA

34

QO

Apr.

23

23

23

25

97

25

OK

OK

25

OK

29

29

on

27

25

OQ

OQ

OO

oq

23

May

41

38

36

34

32

31

29

29

27

OK

23

23

23

20

1 ft

18

17

16

16

16

17

June

10

July

I 10

6.1

5.6

5.0

6.6

5.6

Aug.

1.4

1.2

1.2

1.2

1.2

1.4

1.7

1.7

1.3

1.2

1.2

1.1

1.1

1.2

1.1

1.1

1.2

1.2

1.1

1.2

1.2

Sept.

1.2

1.3

1.3

1.3

1.4

1.3

1.3

1.3

1.2

1.2

1.2

1.1

1.0

1.0

1.0

.9

.9

.9

.8

.9

NOTE. Discharge interpolated or partly estimated Nov. 4-5 and July 27. Braced figures show estimated 

mean discharge for periods indicated.

Monthly discharge of North Llano River near Junction, Tex., for the year ending

September 30, 1926

Month

October ______________ ..............

December _____________ . _ __ .......

March. _____ _________ . _ .... .....

July.. ........ _ _

The year ________________ ...........

Discharge in second-feet

Maximum

1,910 

55 

33 

36 

32 

46 

31 

378

4.5 

1,4

1,910

Minimum

14 

32 

29 

31 

23 

23 

23 

16

.9

.8

.8

Mean

106 

35.3 

31.5 

32.7 

27.6 

33.4 

26.1 

44.0 

11.9 

9.32 

1.64 

1.17

30.2

Run-off in 

acre-feet

6,520 

2,100 

1,940 

2,010 

1,530 

2,050 

1,550 

2,710 

710 

573 

101 

69.8

21,900

ILANO RIVER NEAR JUNCTION, TEX.

LOCATION. 100 feet north of Kerrville-Junction road, 3 miles below confluence 

of North Llano and South Llano Rivers, and 3}^ miles east of Junction, 

* Kimble County.

DRAINAGE AREA. 1,760 square miles (measured on topographic maps and base 

map of Texas).

RECORDS AVAILABLE. September 13, 1915, to September 30, 1926.

GAGE. Au continuous water-stage recorder on right bank; attended by Gilford 

Evans.

DISCHARGE MEASUREMENTS. Made by wading or from cable 400 feet above gage.

CHANNEL AND CONTROL. Bed is solid rock; permanent channel straight for 700 

feet above and 350 feet below gage. Left bank slightly wooded and subject 

to overflow. Right bank not subject to overflow. One channel except 

above a stage of 11.3 feet when a small part of the flow may follow a slough 

that leaves the river a short distance above gage and reenters below gage. 

Control for low and medium stages is rock ledge 75 feet below gage, forming 

a fall of about 3 feet.
COLORADO RIVEE BASIN 115

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

recorder, 5.97 feet at 4 a. m. October 16 (discharge, 5,600 second-feet); 

minimum stage, 1.49 feet September 22-25, 27, 29 (discharge, 50 second-feet). 

1915-1926: Maximum stage recorded, 26.3 feet at 3 a. m. September 16, 

1915 (discharge, about 98,800 second-feet); minimum stage, 1.32 feet 

August 23-28, 1918 (discharge, 13 second-feet).

DIVERSIONS. Records of the board of water engineers for the State of Texas show 

that about 2,500 acres has been declared irrigated by diversions above station 

and about 1,300 acres below station. Diversions materially reduce flow at 

station during low stages.

REGULATION. Slight regulation by water-power plant on South Llano River 

at Junction.

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

from 24 to 1,700 second-feet and extended above through two slope measurements; extension may be subject to considerable error. Operation of waterstage recorder satisfactory. Daily discharge determined by shifting-control 

method or, on days of considerable fluctuation in stage, by averaging discharge for intervals of a day except as noted in footnote to table of daily 

discharge. Records for low stages good; for intermediate and high stages, 

poor. *

Discharge measurements of Llano River near Junction, Tex., during the year ending

September 30, 1926

Date

Oct. 7--.. .......

Nov. 18. 

Feb. 21. ........

Gage 

height

Feet 

1.61

1.82

1.66

Discharge

Sec.-ft. 

86

169

QQ

Date Gage 

height

Feet 

1.79

1.70

1.69

Discharge

Sec.-ft. 

166

112

113

Date

July 27.. ... .

Gage 

height

Feet 

1.57

1.52

1.52

Discharge

Sec.-ft. 

72

60

57

Daily discharge, in second-feet, of Llano River near Junction, Tex., for the year ending

September 30, 1926

Day

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

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

3 ... ... ... 

4... ._ - 

6 

7 

8 

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

10 

11 

13.. ....... 

14 

16 .

17 

18 

19 

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

21 

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

23 

24 

25. 

26 

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

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

29 ___ ..........

30 

31 

Oct.

105

105

102

94

94

91

87

84

87

91

87

87

216

181

120

1,320

365

255

203

184

160

142

125

116

170

151

147

142

142

142

138

Nov

138

134

129

125

125

134

262

255

224

213

203

184

179

170

174

170

170

170

160

151

151

147

147

147

147

151

151

203

151

151

Dec.

151

151

142

151

151

151

147

142

142

142

142

142

142

138

134

129

125

125

125

125

125

1OK

125

125

129

129 19*;

125

120

125

120

Jan.

125

125

120

120

116

109

109

105

105

102

102

98

94

91

91

91

91

91

91

94

94

98

102

102

105

105

102

102

105

105

105

Feb.

102

98

98

98

OS

98

98

98

98

98

102

102

102

102

98

98

98

102

98

98

102

98

98

98

98

QS

98

Mar

103

102

98

102

102

116

116

112

105

138

134

116

112

109

98

98

112

116

109

105

105

109

105

102

173

640

301

218

184

170

165

Apr.

156

156

156

198

203

179

174

165

160

160

156

151

151

160

150

140

129

125

125

129

129

125

120

116

116

112

112

112

112

May

112

112

116 684'

494

421

330

255

213

194

184

170

170

160

156

151

142

142

134

129

125

120

120

116

112

109

109

109

105

109

109

June

105

105

116

125

116

109

105

102

102

98

98

98

98

94

87

84

80

80

80

80

80

165

151

120

112

109

109

102

98

94

July

91

91

87

87

84

77

74

69

69

69

69

69

69

69

69

69

69

66

66

66

66

69

98

84

80

77

72

69

69

72

74

Aug.

77

74

72

72

69

69

66

66

66

63

60

60

60

60

60

60

60

60

60

60

60

58

58

60

60

60

60

60

60

60

60

Sept.

98

60

58

58

60

ea

60

60

60-

58

58

5&

58

58-

58

58

55

52

52

52

52

50

50

50

50

52

50

52

50

52

NOTE. Discharge interpolated or partly estimated Oct. 18-25 and Apr. 15-18.
116 SURFACE WATER SUPPLY, 1926, PART VIII

Monthly discharge of Llano River near Junction, Tex., for the year ending September 30, 1926

Month

March. ___________________________

June.- ___________________________

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

The year _ _ . __________ __ .- _____ -.

Discharge in second-feet

Maximum

1,320 

262 

151 

125 

102 

640 

203 

684 

165 

98 

77 

60

1,320

Minimum

84 

125 

120 

91 

98 

98 

112 

105 

80 

66 

58 

50

50

Mean

178 

167 

135 

103 

99.2 

144 

144 

184 

103 

74.5 

62.9 

55.3

121

Run-off in 

acre-feet

11,000 

9,950 

8,270 

6,340 

5,510 

8,870 

8,580 

11,300 

6,150 

4,580 

3,870 

3,290

87,700

LLANO RIVER WEAR CASTELL, TEX.

LOCATION. 4 miles above mouth of Hickory Creek and 6 miles east of Castell, 

Llano County .

DEAINAGE AEEA. 3,510 square miles (measured on topographic maps and base 

map of Texas.

RECOEDS AVAILABLE. November 17, 1923, to September 30, 1926.

 GAGE. Vertical and inclined staff gage on right bank; read by V. A. Grenwelge.

DISCHAEGE MEASTJEEMENTS. Made from cable 200 feet above gage or by wading.

CHANNEL AND CONTEOL. Bed of sand; shifts. Channel straight for several 

hundred feet above and below gage. Banks of earth, sand, and gravel; 

sparsely timbered; permanent; not subject to overflow. One channel at 

all stages. Control is rock ledge which angles across river 200 feet below gage; 

permanent.

EXTEEMES OF DISCHAEGE. Maximum stage during year, from graph drawn 

from gage readings, 11.9 feet at 2 p. m. November 6 (discharge, 21,400 secondfeet) ; minimum stage, 0.90 foot September 25-27 (discharge, 41 second-feet). 

1923-1926: Maximum stage recorded, 16.8 feet at 4 a. m. May 30, 1925 

(discharge, 59,500 second-feet); minimum stage, that of September 25-27, 

1926.

DIVEESIONS. Several small diversions in drainage basin above; amount not 

known.

REGULATION. Slight regulation at extremely low stages by pumps above station.

ACCTJEACY. Stage-discharge relation not permanent. Rating curve well defined 

below 17,500 second-feet and poorly defined from 17,500 to 60,000 secondfeet. Gage read to hundredths twice daily. Daily discharge determined 

by applying mean daily gage height to rating table or, on days of considerable fluctuation in stage, by averaging discharge for intervals of a day, using 

gage height graph based on daily gage readings. Shifting-control method 

used August 6 to September 30. Records fair.

Discharge measurements of Llano River near Castell, Tex., during the year ending

September 30, 1926

Date

Oct. 6... - 

Oct. 18. _ -.,-.

Dec. 3-----.-. .

Gage 

height

Feet 

1.67

3.66

2.10

Discharge

Sec.-ft. 

103

1,370

201

Date

Apr. 9 ..........

Apr. 10 .

Aug. 17 .

Gage 

height

Feet 

2.57

4.38

1 1Q

Discharge

Sec.-ft. 

401

2 fi4ft

53.6

Date Gage 

height

. Feet 

1.21

Discharge

Sec.-ft. 

67.4
COLORADO RIVER BASIN 117

.Daily discharge, in second-feet, of Llano River near Castell, Tex., for the year ending

September SO, 1926

Day

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

2

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

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

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

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

7 .... ... .

8 

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

10 

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

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

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

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

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

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

17__ 

IS 

19 

20... ....... .,

-21 

. 22 ___ .......

23 ...i 

24 ....

25 _ .... 

26 

27 

28 _

29 

30 

31 

Oct.

130

130

130

120

114

104

101

101

101

106

101

102

178

i iwi

1,130

11, 300

5,710

880

836

530

400

375

305

328

400

350

288

OKO

211

211

Nov.

205

205

202

199

328

10,800

6,920

1,940

1 fiftf)

680

565

530

430

400

328

288

270

270

OKO

ORO

00 K

229

226

217

917

211

91 1

Dec.

911

205

205

199

199

187

181

181

181

181

178

175

181

181

181

175

175

181

175

172

170

168

165

165

168

168

168

168

168

165

Jan.

178

226

235

217

100

193

187

184

181

170

165

165

165

160

160

234

628

317

252

OQK

OQK.

OKO

319

550

548

405

9OO

252

235

223

Feb.

917

911

196

187

187

184

181

178

181

181

178

175

175

175

172

170

162

155

1 f*9

1 K.O

1 t\t\

155

155

152

150

150

150

Mar.

150

150

165

193

1OO

220

720

217

442

1,670

680

364

270

OQK

OQK

97ft

558

605

422

O0(2

OKA

328

288

406

2,930

990

990

680

KGK

ftin

530

Apr.

400

375

382

827 >w<\

565

fid.fi

498

391

2,350

645

430

375

400

657

495

400

375

350

OKfl

663

722

530

400

328

305

270

OKO

252

235

May

303

290

235

226

244

582 i fum

1,740

571

350

288

270

270

919

235

217

217

252

93^

208

184

175

170

160

155

150

150

146

144

142

June

149

148

3,190

852

760

451

OKO

190

165

150

144

142

136

iin

120

114

108

100

107

IfU

1rt4

1,510

1,990

1,630

270

187

165

158

150

134

July

120

112

107

102

100

96

96

90

84

76

73

72

79

114

86

89

84

83

79

74

74

373

202

175

152

116

100

90

84

83

80

Aug.

82

83

82

76

73

72

65

59

55

54

54

55

54

53

52

50

53

52

51

50

52

52

49

50

48

49

57

61

69

69

72

Septi

69

63

63

59

57

55

66

68

59

55

65

55

52

54

51

52

.52

52

51

53

54

53

51

44

41

41

41

42

46

51

Monthly discharge of Llano River near Castell, Tex., for the year ending 

September SO, 1926

Month

May 

April..... 

July--.... 

Discharge in second-feet

Maximum

11, 300 

10,800 

211 

628 

217 

2,930 

2,350 

1,740 

3,190 

373 

83 

69

11,300

Minimum

101

199 

165 

160 

150 

150 

235 

142 

100 

72 

48 

41

41

Mean

851 

947 

179 

258 

172 

527 

514 

336 

460 

108 

59.8 

53.8

373

Run-off in 

acre-feet

52,400 

56, 300 

11,000 

15,900 

9,540 

32,400 

30,600 

20,700 

27,400 

6,650 

3,680 

3,200

270,000

PEDERNALES RIVER AT STONEWALL, TEX.

XOCATION. At Stonewall, Gillespie County, 2 miles below mouth of South Grape

Creek. 

^DRAINAGE AREA. 647 square miles (measured on topographic maps and base

map of Texas).

{RECORDS AVAILABLE. July 22, 1924, to September 30, 1926. 

*GAGE. Vertical Staff on right bank; read by William Klier, jr.

. Made from cable 300 feet above gage or by wading.
118 SURFACE WATER SUPPLY, 1926, PART VIII

CHANNEL AND CONTROL. Bed composed of sand and silt; channel straight for 

300 feet above and 700 feet below gage. Left bank is covered with brush 

and trees; right bank is sparsely wooded. Banks not subject to overflowControl is rock ledge at road crossing, 600 feet below gage; permanent.

EXTREMES OP DISCHARGE. Maximum stage during year, from graph drawn from 

gage readings, 7.48 feet at 3 a.-m. October 16 (discharge, 8,950 second-feet;, 

determined from extension of rating curve and may be subject to error);, 

minimum stage, 0.39 foot September 22-25 (discharge, 3.9 second-feet).

1924-1926: Maximum stage, 8.20 feet at 2.30 a. m. May 9, 1925 (discharge, 10,700 second-feet); minimum stage, 0.33 foot July 30, 31, 1925 (discharge, 1.8 second-feet).

DIVERSIONS. None.

REGULATION. None.

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

below 1,400 second-feet and fairly well defined from 1,400 to 7,000 secondfeet. Gage read to hundredths twice daily and oftener during floods. Daily 

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

on days of considerable fluctuation in stage, by averaging discharge for 

intervals of a day, using gage-height graph based on daily gage readings. 

Records good.

Discharge measurements of Pedernales River at Stonewall, Tex., during the year 

ending September SO, 1926

Date

Oct. 15- 

Oct. 16- 

Dec. 10 ___

Gage 

height

' Feet 

5.33

6.45

.56

Discharge

Sec.-ft. 

"4,530

6,950

10.2

Date

Feb. 22 

Apr. 10 . 

Apr. 26 __ ..

Gage 

height

Feet 

0.54

2.20

.86

Discharge

Sec.-ft. 

12.9

824

62

Date

July 28-. .....

Sept. 9... ....

Gage 

height

Feet 

0.54

.42

.41

Discharge

Sec.-ft. 

11.6

3.23

02.5

° Surface velocities observed for part of measurement and coefficient used to reduce to mean velocities. 

* Estimated.

Daily discharge, in second-feet, of Pedernales River at Stonewall, Tex., for the yearending September SO, 1926

Day

1..... _ ...

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

3 ....

4 ____ ....

5 ...

6 .....

7..... .

8 

9 

10 

11 

12 

13 _ .... _ ,

14 

15 .

16... .....

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

18. .

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

20 .

21 

22 

23 

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

25 .......

26.... ..

27... .....

28 ...

29-.. ...

30 ...

01

Oct.

9 2

17

9 2

6.8

7.5

6.8

6.1

5.8

5.8

5.4

5.4

9.2

101

142

2,510

5,760

421

102

57

41

27

26

23

57

57

26

19

17

16

17

i ^

Nov.

15

14

14

14

406

1,110

915

169

76

51

41

34

30

26

23

20

20

19

19

19

18

18

18

17

17

17

16

16

17

17

Dec.

18

16

16

14

13

13

13

13

13

13

1^1

13

13

14

15

14

14

14

14

14

14

14

13

13

13

13

13

13

12

13

i q

Jan.

17

20

28

oq

20

18

16

1 f\

14

14

13

13i<i

13

14

26

16

14

14

20

20

25

24

OQ

20

20

19

18

18

17

Feb.

16

16

1 f\

14

14

14

13

13

13

13

13

13

13

13

13

12

11

11

12

11

11

11

11

10

11

Mar.

11

11

11

13

14

15

15

14

14

792

222

67

46

37

34

34

46

51

39

34

32

44

34

27

560

140

66

53

48

78

Apr.

41

37

37

41

46

39

34

30

30

332

148

62

46

48

62

53

41

37

34

41

594

354

154

88

66

57

53

48

48

48

May

46

42

163

233

199

78

128

401

60

44

34

37

41

36

34

30

34

27 '214

41

26

25

23

20

19

18

17

16

16

14

14

June

14

13

14

86

76

29

20

16

14

13

IQ

11

11

10

9.2

9.2

7.5

7.5

200

59

9.2

326

95

26

15

13

14

14

8.4

7.5

July

6.8

6.8

6.8

6.8

6.8

7.2

6.4

6.1

5.4

5.8

15

9.2

13

25

12

7.5

6.4

6.1

5.4

5.4

5.8

2,200

1,020

107

26

17

13

10

8.4

7.5

8.2

Aug.

36

11

10

10

7.5

6.8

6.1

6.1

5.8

5.8

5.4

5.4

5.4

5.4

5.4

5.4

4.7

4.7

4.7

4.7

4.4

4.0

4.4

4.7

4.0

4.0

5.4

6.1

5.4

5.8

5.4

Sept.

4.7

4.7

4.7

4.7

4.7

6.1

5.4

4.7

4.4

4.0

4.0

4.0

4.O

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.4

4.4

4.4

4.0
COLORADO RIVER BASIN 119

Monthly discharge of Pedernales River at Stonewall, Tex., for the year ending 

September 80, 1926

Month

 October ___________________________

November. _________________________

December __________________________

February _________________ . .................

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

Discharge in second-feet

Maximum

5,760 

1.110 

16 

26 

16 

792 

591 

401 

326 

2,200 

36 

6.1

5,760

Minimum

5.4 

14 

12 

13 

10 

11 

30 

14 

7.5 

5.4 

4.0 

4.0

4.0

Mean

307 

107 

13.6 

17.9 

12.8 

85.6 

91.6 

68.7 

38.7 

116 

6.77 

4.31

73.1

Run-off in 

acre-feet

18,900 

6,360 

837 

1,100 

710 

5,260 

5,450 

4,220 

2,300 

7,130 

416 

256

52,900

PEDERNAIES RIVER NEAR SPICEWOOD, TEX.

T/OCATION. \y<i miles above Austin-Marble Falls road crossing, 2% miles below 

mouth of Fall Creek, and 8 miles southeast of Spicewood, Burnet County.

DRAINAGE AREA. 1,290 square miles (measured on topographic maps and base 

map of Texas).

RECORDS AVAILABLE. November 7, 1923, to September 30, 1926.

 GAGE. Vertical staff on right bank; read by J. W. Bowles.

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

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

overlain in places by silt; fairly permanent. Channel straight one-fourth 

mile above and 400 feet below gage. One channel at all stages. Banks 

wooded, permanent, and not subject to overflow. Control below gage height 

of 2 feet is gravel and rock riffle 325 feet below gage. Control for high water 

composed of boulders and coarse gravel 400 feet below gage; permanent.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 16.4 feet 

at 1.45 p. m. April 21 (discharge, 28,000 second-feet); minimum stage, 1.38 

feet September 25 (discharge, 2.80 second-feet).

1924-1926: Maximum stage, that of April 21, 1926; no flow June 24 to 

August 3 and August 28-30, 1925.

DIVERSIONS. None.

REGULATION. None.

ACCURACY. Stage-discharge relation not permanent. Two rating curves, one 

from October 1-13 and the other from October 14 to September 30, used 

during year. Both curves are well denned below 1,500 second-feet and 

extended above by measurements from slope determinations. Gage read to 

hundredths twice daily and oftener during floods. Daily discharge determined by applying mean daily gage height to rating table or, on days of 

considerable fluctuation in stage, by averaging discharge for intervals of a 

day, using gage-height graph based on daily gage readings. Records fair.

Discharge measurements of Pedernales River near Spicewood, Tex., during the 

year ending September 30, 1926

Date

; 

Oct. 17.... .....

Nov. 7...... _

Gage 

height

Feet 

4.99

5.01

Discharge

Sec.-ft.

1,530

Date

Mar. 23. .......

Gage 

height

Feet

1.91

Discharge

Sec.-ft.

37.2

Date

Sept. 22-..-....

Gage 

height

Feet 

1.42

Discharge

Sec.-ft. 

3.3
120 SURFACE WATER SUPPLY, 1926, PART VIII

Daily discharge, in second-feet, of Pedernales River near Spicewood, Tex., for theyear ending September 30, 1926

Day

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

2_ ........

3-. ... ....

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

5. ~

e.. ..........

"7. ....... ....

8

9 -

10 

11 

13 

14 

16 

17 

18 . 

19. ..-.

on

21 

22 

23 

24 

25 

25 

27 

28 

29 

30 

31 . 

Oct.

30

49

TO

20

17

17

13

12

10

9.4

8.1

50

6E4

1,140

11,300

3,980

499

230

161

116

94

77

79

68

70

103

76

62

53

48

Nov.

60

60

53

47

346

5,750

1,800

1,050

416

230

166

136

114

98

84

74

66

62

62

58

53

53

48

47

46

44

44

44

42

42

Dec.

42

42

40

37

QW

34

34

^i

32

00

32

32

32

32

09

32

00

35

35

34

34

33

32

32

32

32

30

30

30

28

28

Jan.

vt

47

60

65

CA

t\Q

56

50

47

44

1Q

35

34

33

00

581

flK«

201

128

110

124

ISO

139

124

124

136

1OA

128

116

108

103

Feb.

98

92

so

86

7Q

77

74

72

70

66

64

62

62

62

<\Q

56

56

54

52

AS

47

44

44

44

43

42

39

Mar.

17

37Q«T

3Q

47

60

fiO

59

56

553

1,040

423

230

185

134

120

141

185

230

150

136

132

124

444

908

379

230

189

446

322

Apr.

264

201

177

170

168

163

163

ill

141

ipe

161

326

201

189

168

177

163

1EO

132

1,470

15,100

3,840

1,320 i Ann

940

670

470

442

416

May

470

366

343 TOO

556

584

1,210

PiA.

613

366

282

oej.

264

230

247

230

201

301

676

304

201

172

139

130

114

107

99

94

June

91

87

82

80

77

193

141

107

84

71

65

64

60

52

46

43

38

33

31

82

. 91

88

184

264

177

87

62

47

37

33

July

29

26

26

23

on

18

18

17

15

OJfi

393

BO

52

117si

76

47

37

30

OK

1,680

7,000

6,900

907

390

170

110

82

65

58

64

Aug.

IfVl

116

86

65

50

38

OQ

25

22is

17

15

14

12

11

11

Q fi

8.6

7.8

7.3

6.4

6.4

5.2

5.0.

4.2

4.0

5.5

6.4

6.0

6.4

6.0

Sept.

6.0'

9.1.

11

10

10

20

21

11

7.8

8.2:

8.2;

7.8.

6.S

5.5

5. ft"

4.ff

4.5

4.5

4.(*

4.0-

3.5=

3.5 3.O*

2.9'

2.8-

3.O3. ft

3.0

3.2

4. Or*

Monthly discharge of Pedernales River near Spicewood, Tex., for the year ending

September 80, 1926

Month

April......... 

May - . . -

July

Discharge in second-feet

Maximum

11,300 

5,750 

42 

656 

98 

1,040 

15,100 

1,210 

264 

7,000 

116 

21

15, 100

Minimum

8.1 

42 

28 

32 

39 

37 

132 

94 

31 

15 

4.0 

2.8

2.8

Mean

615 

373 

33.4 

121 

61.6 

237 

969 

325 

86.6 

606 

23.5 

6.69

289

Run-off SB 

acre-feet

37,80» 

22,20» 

2, 0£O. 

7,45O3,420* 

14,60» 

57,60ft. 

20,000 

5,150 

37,30O 

1,44O 398-

209,000-

BARTON SPRINGS AT AUSTIN, TEX.

LOCATION. Barton Springs issue from channel of Barton Creek 1,600 feet aboveAustin-Bee Cave highway, bridge, half a mile above confluence of BartonCreek with Colorado River, and half a mile southwest of Austin, TravisCounty.

RECORDS AVAILABLE. October 1, 1918, to September 30, 1926. Daily record of 

flow of Barton Creek, which closely approximates flow of Barton Springs,- 

as the ordinary flow of creek is from springs, has been published from ApriL 

25, 1917, to September 30, 1918. Miscellaneous discharge measurements ol 

Barton Creek made from 1894 to 1906 and during 1916 and 1017..
COLORADO RIVER BASIN 121

DISCHABGE MEASUREMENTS. Made by wading Barton Creek above and below 

the springs in order to determine the flow of springs as indicated in table below.

Discharge measurements, in second-feet, of Barton Creek and determination of discharge of Barton Springs at Austin, Tex., during the year ending September SO, 

1926

Date

Oct. 28-. ........

Nov. 30............

Dec. 18.............

Jan. 26... ..........

Barton 

Creek 

below 

springs

31.5

59.8

36.6

85.1

Barton 

Creek 

above 

springs

0.0

.0

.0

37.3

Barton 

Springs

31.5

59.8

36.6

47.8

Date

May 13. ...........

Sept. 17 

Barton 

Creek 

below 

springs

81.9

41.9

Barton 

Creek 

above 

springs

3.0

.0

Barton 

Springs

92

78.9

41.9

LITTLE WALNUT CKEEK NEAR AUSTIN, TEX.

LOCATION. At Austin-Manor highway bridge, \% miles above confluence with 

Walnut Creek and 4% miles northeast of Austin, Travis County.

DRAINAGE AREA. 12 square miles -(measured on topographic maps).

RECORDS AVAILABLE. April 25, 1924, to March 25, 1926, when station was 

discontinued.

GAGE. Gurley 8-day or Stevens continuous water-stage recorder attached to 

downstream side of first concrete pier from right bank; inspected by Geological Survey engineers.

DISCHARGE MEASUREMENTS. Made from bridge or by wading.

CHANNEL AND CONTROL. Bed of clay; shifts. Channel curved above and straight 

for 150 feet below gage. Banks of gravel and clay; high and steep; shift. 

Control of clay; 150 feet below gage; shifts.

EXTREMES OF DISCHARGE. Maximum stage during period, from water-stage 

recorder, 9.00 feet at 1.50 a. m. October 13 (discharge not determined); 

no flow October 1-11.

1924-1926: Maximum stage, that of October 13, 1925; no flow for several 

periods.

DIVERSIONS . None.

REGULATION. None.

ACCURACY. Stage-discharge relation changed October 16. Rating curves 

poorly defined and do not cover range of stage for period. Operation of 

water-stage recorder not satisfactory. Daily discharge determined by 

applying mean daily gage height to rating table or, on days of considerable 

fluctuation in stage, by averaging discharge for intervals of a day, except as 

noted in footnote to table of daily discharge. Discharge not applied above 

gage height 4.1 feet October 13-15 or above gage height 2.7 feet October 16 

to March 25. Records poor.

Discharge measurements of Little Walnut Creek near Austin, Tex., during the year 

ending September SO, 1926

Date

Oct. 13.......

Do........

Do... 

Do 

Gage 

height

Feet

0 17

.43

4.09

Discharge

Sec.-ft.

a ^ft 7

29.0 "470

» 2, 140

Date

Oct. 13.. .

Do 

Do 

Gage 

height

Feet

2.53

1.93

1.55

Discharge

Sec.-ft. 

91

896

504

310

Date

Feb. 5... . .

Mar. 10 

Gage 

height

Feet 

0.03

.48

Discharge

Sec.-ft. 

2.55

34.2

1 Surface velocities observed and coefficient used to reduce to mean velocities.
122 SURFACE WATER SUPPLY, 1926, PART VIII

Daily discharge, in second-feet, of Little Walnut Creek near Austin, Tex., for the year 

ending September SO, 1926

Day

1- ... 

2

4IIIIIIII

5_ 

6

T. .......

8. .......

9

10 __

11 __ .... 

12. __ -.

13 __

14- 

15- _ ....

Oct.

0.0 

.0

.0

.0

.0

.0

.0

.0

.0

.0 

16

6.0

142

Nov.

1.4 

1.4

1.6 

40

194

13

5.2

4.4

4.0

3.6 

3.2

2.8

2.4

2.0

Dec.

2.0 

2.0

2.0 

1.8

2 fl

2.8

4.0

4.4

3.6

3.6

3.6

3.2

2.8

2.8

Jan.

6.4

5.2

3.2 

2.4

2 A

2.4

2.4

2.8

2.8

2.8

2.8

2.8

2.8

2.8

2.8

Feb.

3.6 

3.6

3.2

2

Q

3 9

2.8

2.8

2.4

2.4

2.4

2.4 

2.4

2 A

2.4

2.4

Mar.

2.8 

2.8

2.8 

3.6

4.0

3.6

2.4

2.0

4.0

8.5 

7.0

10

9.0

Day

16-- . 

17- 

18- 

19- 

20. 

23- 

24. 

25- 

26- 

27. -.--..

28- 

29- 

30- 

31- 

Oct.

~~~7.T

4.9 

2.8

2.0

1.6

1.6

1.6

8.4

2.8 

2.0

2.0

1.6

2,4

1.6

Nov.

2.0 

2.0

2.0 

2.0

1.8

1.8

1.8

1.8

1.8

1.8

1.8 

1.8

1.8

1.8

2.0

Dec.

2.8 

2.4

2.8 

3.2

2.4

2.0

2.0

2.4

2.4

2.4

2.4 

2.0

2.0

2.4

2.4

2.0

Jan.

8.6 

4.0

2.4 

2.0

2,0

5.2

2.8

3.6

4.8

5.2

5.2 

4.4

4.0

4.4

4.4

4.4

Feb.

2.4 

2.8

2.4 

2.4

2.8

2.8

2.8

2.8

2.4

2.8

2.8 

2.8

2.8

Mar.

9.0 

9.0

9.0 

9.0

9.0

9.0

9.0

9.0

9.0

14

NOTE. Mean daily gage height, in feet, for days when stage was beyond limits of rating curve for 

portions of day as follows: Oct. 13, 2.29; Oct. 16, 0.57; Mar. 10, 0.53.

Monthly discharge of Little Walnut Creek near Austin, Tex., for the year ending

September 80, 1926

Month

Discharge in second-feet

Maximum

194 

4.4 

8.6 

3.6

Minimum

1.4 

1.8 

2.0 

2.4

Mean

11.2 

2.64 

3.68 

2.71

Run-off in 

acre-feet

668 

162 

227 

151

ONION CHEEK NEAE DEI VAIIE, TEX.

LOCATION. At Del Valle-Creedmoor highway crossing, 2 miles below mouth of 

Williamson Creek and 1% miles southwest of Del Valle, Travis County.

DRAINAGE AREA. 337 square miles (measured on topographic maps and base 

map of Texas).

RECORDS AVAILABLE. May 15, 1924, to September 30, 1926.

GAGE. Vertical staff attached to rock 250 feet above low-water concrete bridge; 

read by C. T. Sundberg.

DISCHARGE MEASUREMENTS. Made by wading or from highway bridge 2 miles 

downstream.

CHANNEL AND CONTROL. Bed of solid rock with some gravel. Channel straight 

for 500 feet above and 200 feet below gage. One channel at all stages. 

Right bank of rock and clay; fairly clean to a stage of 8 feet and covered 

with grass, light brush, and small trees above; permanent; subject to overflow at extremely high stages. Left bank is ledge rock; clean up to a stage 

of 8 feet and covered with fairly heavy growth of brush and small trees above; 

permanent; not subject to overflow. Control is formed by rock and gravel 

rapids and low-water concrete bridge 250 feet below gage.

EXTREMES OF DISCHARGE. Maximum stage during year, from levels to flood 

mark, 16.05 feet at 9 p. m. April 21 (discharge, 24,300 second-feet); no flow 

October 4-12.

1924-1926: Maximum stage, that of April 21, 1926; no flow during several 

periods.

DIVERSIONS. None.

REGULATION. None.
GUADALUPE BIVER BASIN 123

ACCURACY. -Stage-discharge relation not permanent. Hating curve wel] defined 

below 220 second-feet and fairly well defined from 220 to 70,800 second-feet. 

Gage read to hundredths twice daily. Daily discharge ascertained by 

applying mean daily gage height to rating table or, on days of considerable 

fluctuation in stage, by averaging discharge for intervals of a day, using 

gage-height graph based on daily gage readings. Daily records not suffiiciently accurate for publication. Monthly records fair.

Discharge measurements of Onion Creek near Del Valle, Tex., during the year 

ending September SO, 1926

Date

 Oct. 13.. _

Oct. 14.. 

Nov. 6.. .,

i

Gage 

height

Feet 

11.90

5.98

6.75

Discharge

Sec.-ft. 

 15, 300

979

988

Date

Apr. 21 ..

Do. .

Do 

Gage 

height

Feet 

13. 15

14.45

16.05

Discharge

Sec.-ft. 

14,600

16 800

»24,200

Date

Apr. 22- 

July 30. 

Aug. 26. ....

Gage 

height

Feet 

7.87

3.74

3.33

Discharge

Sec.-ft. 

2,«90

10.1

1.84

« Very poor measurement, owing to measuring conditions.

< Discharge obtained from slope determination and Kutter's formula.

Monthly discharge of Onion Creek near Del Valle, Tex., for the year ending September

SO, 1926

Month

October _________ ___________ ___

December ______ . _ _________ _ . __ ... _

March... __________________ .. ............

May ______ ___________________ . ......

June __ ______ ." ___________ ........

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

August __________ ______ . ................

The year ________ . __________ _ ...

Discharge in second-feet

Maximum

3,730 

1,660 

15 

91 

62 

1,570 

11,800 

1,470 

135 

1,010 

44 

2.9

11,800

Minimum

0.0

10 

12 

12 

22 

20 

85 

80 

13 

6.0 

1.7 

1.7

.0

Mean

282 

124 

13.3 

39.0 

35.7 

168 

847 

351 

39.3 

73.0 

4.93 

2.06

165 .

Run-off in 

acre-feet

17,300

7,350 

817 

2,400 

1,980 

10,300 

50,400 

21,600 

2,340 

4,490 

303 

123

119, 000

GUADALTJPE EIVEE BASIN 

fiUADAIUPE BIVER NEAR COMFORT, TEX.

LOCATION. At low-water bridge and dam on State highway No. 27, 3% miles 

below mouth of Verde Creek and 2.6 miles west of Comfort, Kendall County.

DRAINAGE AREA. 916 square miles (measured on topographic maps, United 

States Army progressive military maps, and base map of Texas).

RECORDS AVAILABLE, December 17, 1917, to September 30, 1926. Records prior 

to August 10, 1924, at a point 1 mile upstream.

 GAGE. Vertical staff on left bank; read by Gus Haufler.

DISCHAEGE MEASUREMENTS. Made by wading or from cable 400 feet above gage.

CHANNEL AND CONTROL. Channel straight for 1,000 feet above and 400 feet 

below gage. Bed of gravel and silt; permanent. Two channels at extremely 

high stages. Right bank of earth, covered with trees, and not subject to 

overflow at cable. Left bank of earth, covered with trees, and subject to 

overflow at high stages. At extremely high stages water flows through second 

channel to left of gage and station can not be reached. Control below stage of 

3 feet is concrete low-water bridge and dam with opening in the center; 

permanent if opening is kept clear. For high stages, control is gravel bar and 

.earth banks; subject to shift.

96272 30 9
124 SURFACE WATER SUPPLY, 1926, PART VIII

EXTREMES OP DISCHARGE. Maximum stage recorded during year, 1Q.7 feet at

7.30 p. m. July 23 (discharge, 5,460 second-feet); minimum stage, 2.24 feet 

at 7.12 a. m. September 28 (discharge, 26.0 second-feet).

1917-1926: Maximum stage, about 41 feet August 21, 1919, cetermined 

from flood marks near gage (discharge not determined); minimum stage, 

0.80 foot August 2, 1918 (discharge, 0.40 second-foot).

DIVERSIONS. A few pumping plants along stream about 8 miles above statioa. 

Records of the board of water engineers for the State of Texas show that 

about 400 acres has been declared irrigated by diversions above station.

REGULATION. Dams are located at Kerrville and Center Point, but effect of 

regulation is slight except during low stages.

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

from 18 to 120 second-feet, fairly well defined from 120 to 3,200 second-feet, 

and extended above; extension may be subject to considerable error. Gage 

read to hundredths twice daily. Daily discharge determined by applying 

mean daily gage height to rating table or, on days of considerable fluctuation 

in stage, by averaging discharge for shorter intervals, using gage-height graph 

based on daily gage readings. Records fair.

Discharge measurements of Guadalupe River near Comfort, Tex., during the year 

ending September SO, 1926

Date

Oct. 9. .....

Oct. 16........

height

Feet 

2.36

7.66

Discharge

Sec.-ft. 

42.1

2,890

Date

Oct. 16.. .....

Gage 

height

Feet 

6.02

Discharge

Sec.-ft. 

1,680

61

Date

Mar. 4.... ...

July 11. ......

Gage 

height

Feet 

2.49

2.36

Discharge

Sec.-fl. 

58

dt\ O

Daily discharge, in second-feet, of Guadalupe River near Comfort, Tex., for the 

year ending September SO, 1926

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.

42

63

65

39

39

40

34

47

37

37

34

60

96

55

1,030

3,340

352

182

129

84

92

50

42

69

65

69

67

62

55

57

58

Nov.

58

58

60

58

76

1,140

570

265

165

160

126

117

105

96

88

96

96

96

. 96

92

86

86

84

86

84

86

84

84

84

84

Dec.

.84

74

62

58

60

65

69

71

62

65

69

65

62

54

65

62

58

60

62

65

62

62

58

57

CO

58

55

57

"58

57

58

Jan.

69

90

90

84

71

62

58

58

58

58

57

58

55

55

57

65

65

76

67

62

72

74

69

76

80

78

72

69

69

72

72

Feb.

62

58

62

62

58

55

57

52

54

55

55

55

58

58

55

54

60

52

CO

69

CQ

55

52

eo

50

44

50

Mar.

50

50

50

55

62

60

62

58

69

170

202

132

105

94

86

88

105

101

84

84

90

105

86

83

i79

134

OR

105

OR

101

110

Apr.

96

90

92

84

84

80

78

55

72

65

142

96

86

88

101

94

84

80

76

787

821

238

1,100

176

144

139

129

119

124

119

May

112

105

105

340

251

218

162

142

124

114

110

248

132

110

103

94

105

96

92

88

82

80

76

76

79

72

fiQ

65

65

1,510

144

June

307

114

105

129

108

80

74

69

65

62

62

60

58

58

57

55

KK

58

105

82

69

119

72

65

R9

62

72

76

67

60

July

44

43

144

122

45

50

36

44

36

36

47

32

149

67

55

58

48

42

40

37

51

157

1,570

1,720

678

465

190

114

92

92

105

Aug.

96

84

84

67

69

62

57

55

52

52

52

55

51

51

47

48

44

47

42

39

40

39

39

44

42

43

48

55

57

96

55

Sept.

55

47

45

43

49

43

44

44

40

37

37

37

36

37

37

47

43

39

39

37

34

33

32

32

32

33

30

32

34
GUADALUPE RIVER BASIN 125

Monthly discharge of Guadalupe River near Comfort, Tex., for the year ending

September 80, 1926

Month

December _________________________

April.. . ._ . ..

July

Discharge in second-feet

Maximum

3,340 

1,140 

84 

90 

69 

472 

1,100 

1,510 

307 

1,720 

96 

55

3,340

Minimum

34 

58 

54 

55 

44 

50 

55 

65 

55 

32 

39 

30

30

Mean

209 

149 

62.3 

68.3 

55.5 

105 

185 

167 

82.9 

207 

55.2 

38.8

116

Run-off in 

acre-feet

12,900 

8,860 

3,830 

4,290 

3,080 

6,440 

11,000 

10,200 

4,930 

12,700 

3,400 

2,310

83,800

GUADALUPE RIVER NEAR SPRING BRANCH, TEX.

LOCATION. At New Braunfels-Blanco City highway bridge, known as Esser 

Bridge, 4 miles southeast of Spring Branch, Comal County, and 6 miles 

below mouth of Curry Creek.

DRAINAGE AREA. 1,430 square miles (measured on topographic maps, United 

States Army progressive military maps, and base map of Texas).

RECORDS AVAILABLE. June 28, 1922, to September 30, 1926.

GAGE. Stevens continuous water-stage recorder attached to downstream side 

of pier on right bank; attended by E. L. Jonas.

DISCHARGE MEASUREMENTS. Made by wading or from highway bridge.

CHANNEL AND CONTROL. Channel straight for 200 feet above and 700 feet below 

gage. Bed of solid rock and gravel; permanent. Right bank of clay, 

wooded, and not subject to overflow. Left bank of clay and gravel, covered 

with grass and brush, and subject to overflow at a stage of about 46 feet. 

Low-water control is rock and gravel riffle 350 feet below gage; shifts.

EXTREMES OF DISCHARGE. Maximum stage during year, from water-stage recorder, 20.70 feet at 8.30 a. m. April 21 (discharge, 19,800 second-feet); 

minimum stage, 2.00 feet at 6 a. m. October 12 (discharge, 26.0 second-feet). 

1923-1926: Maximum stage, that of April 21, 1926; minimum stage not 

definitely known but about 1.74 feet during period of missing record August 

17, 1923 (discharge, 4.7 second-feet).

DIVERSIONS. See Guadalupe River near Comfort.

REGULATION. See Guadalupe River near Comfort.

ACCURACY. Stage-discharge relation not permanent. Two curves used during 

year; one from October 1 to April 23, is well defined below 1,000 second-feet 

and poorly defined from 1,000 to 18,000 second-feet; the other from April 24 

to September 30, is poorly defined below 45 second-feet, well defined from 

45 to 150 second-feet, and poorly defined from 150 to 18,000 second-feet. 

Both curves extended- above this limit. Operation of water-stage recorder 

satisfactory, except as noted. Daily discharge determined by applying 

mean daily gage height to rating table, or by shifting-control method, or, 

on days of considerable fluctuation in stage, by averaging discharge for 

intervals of a day except as noted in footnote to table of daily discharge. 

Records fair.
126 SUKFACE WATEK SUPPLY, 1926, PAKT VIII

Discharge measurements of Guadalupe River near Spring Branch, Tex., during the 

year ending September SO, 1926

Date

Oct. 7 

Oct. 18.- __

Dec. 10 

Gage 

height

Feet 

2.07

3.47

2.30

Discharge

Sec.-ft. 

35.8

478

79

Date

July 11 . 

Gage 

height

Feet 

2.28

2.40

2.12

Discharge

Sec.-ft. 

70

144

81

Date

Aug. 28. .

Gage 

height

Feet 

2.05

Discharge

Sec.-ft. 

64

Daily discharge, in second-feet, of Guadalupe River near Spring Branch, Tex., for 

the year ending September 30, 1926

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.

42

41

47

46

48

40

34

33

34

33

31

31

119

78

397

3,900

2,330

482

265

182

137

109

100

89

68

72

72

70

66

104

80

Nov.

66

64

61

59

99

618

968

700

376

273

218

186

164

150

134

126

116

109

109

109

107

104

100

98

95

95

95

93

93

91

Dec.

89

89

89

89

82

80

78

80

80

82

82

86

86

85

85

87

85

82

80

80

82

82

80

76

78

78

78

78

76

78

Jan.

82

93

98

107

104

93

85

82

78

78

78

78

78

74

74

85

85

80

80

91

95

91

95

102

98

98

100

98

96

93

93

Feb.

91

91

87

82

80

82

76

76

72

76

72

72

72

72

74

70

68

64

66

 64

64

64

66

68

70

74

72

72

Mar.

70

66

66

70

74

74

74

74

74

100

140

240

186

150

129

121

156

176

170

156

139

134

139

134

132

348

236

186

164

252

'- 314

Apr.

198

170

153

142

137

134

134

132

126

132

124

156

151

146

141

136

131

126

121

1,840

11,000

2,310

1,620

933

610

479

414

380

361

361

May

380

327

310

498

761

871

1,300

507

406

364

338

307

357

357

310

290

270

447

421

463

284

248

238

225

213

203

191

182

176

170

802

June

307

235

213

372

317

238

194

173

159

151

142

140

135

127

127

122

114

105

108

112

142

119

167

162

127

110

112

117

98

114

July

96

96

96

96

96

96

S3

73

71

136

135

69

65

92

112

140

96

81

75

69

61

243

443

1,860

1,130

432

287

225

188

165

156

Aug.

182

167

148

137

122

108

101

94

90

83

81

79

81

83

77

73

69

65

61

57

57

53

51

51

50

53

61

65

67

69

157

Sept.

101

77

73

63

69

69

61

59

57

55

53

61

50

46

44

46

51

53

51

50

41

44

46

42

42

32

41

42

41

42

. NOTE. Discharge partly estimated or interpolated Oct. 16-18, Mar. 4-7, Apr. 13-17, May 29, June 2, 3, 

and July 2-5.

Monthly discharge of Guadalupe River near Spring Branch, Tex., for the year 

ending September 30, 1926

Month

June

July.. . 

September... ____ _ ____ _ ... ........

The year _______________________

Discharge in second-feet

Maximum

3,900 

968 

89 

107 

91 

348 

11,000 

1,300 

372 

1,860 

182 

101

11,000

Minimum

31 

59 

76 

74 

64 

66 

121 

170 

98 

61 

50 

32

31

Mean

296 

189 

81.8 

89.1 

73.5 

147 

767 

394 

162 

228 

86.8 

53.1

214

Run-off in 

acre-feet

18,200 

11,300 

5,030 

5,480 

4,080 

9,010 

45,600 

24,200 

9,640 

14,000 

5,340 

3,160

155,000
GUABALUPE EIVEE BASIN 127

GTTADAITTPE RIVER AT NEW BRATTNFE1S, TEX.

LOCATION. At highway bridge on San Antonio-Austin post road 700 feet below 

International-Great Northern Railroad bridge, 1 mile below mouth of 

Comal River, and 1 mile northeast of center of New Braunfels, Comal 

County.

DRAINAGE AREA. 1,770 square miles (measured on topographic maps, United 

States Army progressive military maps, and base map of Texas).

RECORDS AVAILABLE. March 13, 1898, to December 30, 1899; January 27, 1915, 

to September 30, 1926.

GAGE. Stevens water-stage recorder attached to downstream side of middle 

pier of highway bridge; inspected by Geological Survey engineers.

DISCHARGE MEASUREMENTS. Made from bridge or by wading.

CHANNEL AND CONTROL. Bed of solid rock with pockets of coarse gravel. Banks 

of gravel, clay, and rock; slightly wooded, and not subject to overflow. 

Control is rock and gravel shoal 600 feet below gage; shifts.

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

recorder, 22.65 feet at 7.30 p. m. April 21 (discharge, 35,300 second-feet); 

minimum discharge, probably no flow for few minutes October 6-10 and 12. 

1898-1899, 1915-1926: Maximum stage recorded, 28.6 feet at 3 a. m. 

September 10, 1921 (discharge, 56,600 second-feet; no flow for short period 

on each of several days in August and September, 1922, October 10, 1923, 

and October 6-10 and 12, 1925, owing to regulation at dam 300 feet above 

gage.

DIVERSIONS. Some water diverted for irrigation above station in Kerr and 

Comal Counties, and for waterworks and other municipal uses in Kerr, 

Kendall, and Comal Counties; amount not known.

REGULATION. Flow at this point entirely regulated at times by operation of 

power plants on Comal River and by plant 300 feet above gage.

ACCURACY. Stage-discharge relation changed April 21. Rating curve used 

from October 1 to April 20 well defined, and curve used from April 21 to 

September 30 fairly well defined for all stages. Operation of water-stage 

recorder satisfactory. Daily discharge determined by shifting-control 

method or, on days of considerable fluctuation in stage, by averaging discharge for intervals of a day, except as noted in footnote to table of daily 

discharge. Records fair.

Discharge measurements of Guadalupe River at New Braunfels, Tex., during the 

year ending September 30, 19%6

Date

Oct. 6..... ...

Oct. 17.......

Oct. 18... _ .

Jan. 21... ....

Gage 

height

Feet 

0.72

6.50

O AA

.86

1.08

Discharge

Sec.-ft.. 

409

5,650

1,300

AAf\

446

Date

Mar. 3_ 

Apr. 17 

Apr. 21- 

Do......

Gage 

height

Feet 

1.02

1.24

22 10

1Q RQ

2.10

Discharge

Sec.-ft. 

443

525

 32,000

 26,900

749

Date

July 12-. -

A no- 97

Gage 

height

Feet 

2.02

1.80

1 on

1.20

Discharge

Sec.-ft. 

718

639

679

476

' Surface velocities observed for part of measurement and coefficient used to reduce to mean velocity.
128 SURFACE WATER SUPPLY, 1926, PART VIII

Daily discharge, in second-feet, of Guadalupe River at New Braunfels, Tex., for 

the year ending September SO, 1926

Day

1 ......... .

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

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

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

5-.-..-........

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

7. _ ........

8 - .._.__

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

10 .._.-...._.

11 ___ ... . .

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

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

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

15. ......

16 ....

17. 

18 . ..

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

20 ...

21 ....

22 .

23 ...

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

25 .

26 

27 .......

28. ..

29 .........

30 .

31.... __ ......

Oct.

364

366

349

368

379

357

365

366

353

331

349

350

682

808

522

1,570

3,980

1,560

QQfl

688

562

KO9

482

444

414

444

425

425

425

425

Nov.

463

425

406

425

444

843

1,340

1,480

QQQ

733

646

604

CfiO

522

502

482

463

444

444

444

AAA

AAA.

425

425

425

An K

425

425

} 425

Dec.

A'X

Af)K

AAA

425

425

425

49 1

425

406

406

-tftfi

406

387

406

dftfi

406

406

406

387

387

dfifi

DO'7

406

387

406

4(1fi

406

425

dfifi

406

406

Jan.

406

406

A(\fi

491

406

425

425

491

406

406

425

AnK

425

425

425

Aor:

RH9

Aon

AAA.

425

425

444

411

414

444

463

463

482

4R9

463

4Q9

Feb.

482

AGO

482

482

482

482

489

502

502

502

AGO

482

482

482

Aon

463

463

463

463

AAA

444

AAA

414

444

444

444

444

444

Mar.

444

444

AAA

At) K

406

425

Anfi

406

fiQQ

fi(U

^99

604

KftO

502

eno

688

646 fiftft

646

604

ROA

KftO

CfiO

»ift9

eflo

660

646

604

710

733

Apr.

700

604

562

CfiO

562

562

522

199

639

502

502

502

522

502

502

502

522

589

1,140

21,800

10,600

2,710

2,790

1 660

1,200

1,110

1,080

1,250

May

1,620

1,200

1,080

1,130

2,820

3,750

2,370

1,860

1,580

1,360

1,330

1,260

1,230

1,140

1,140

1 080

1^020

988

QQO

988

988

079

820

795

770

770

745

745

721

697

731

June

1,210

OAK

795

745

770

745

fi07

697

674

630

> 608

586

586

756

565

535

July

*tflQ

526

511

511

507

511

526

511

495

4R8

548

651

539

514

503

526

548

526

503

488

477 sni

1,150

872 9 nan

1,230

928

795

721

674

651

Aug.

721

674

651

630

608

586

586

565

561

548

531

522

522

522

522

531

514

511

507

499

492

4Q9

488

488

477

473

477

484

492

488

484

Sept.

507

565

511

480

480

473

473

466

455

437

441

441

430

426

423

430

423

426

419

434

412

4ftQ

409

409

388

392

392

385

385

385

NOTK. Discharge partly estimated or interpolated Dec. 2, Apr. 15-17, and June 10, 26. Braced figures 

show estimated mean discharge for period indicated.

Monthly discharge of Guadalupe River at New Braunfels, Tex., for the year ending

September 30,

Month

January _____________________________

March.. ___ ________ __ ..

April.... 

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

Discharge in second-feet

Maximum

3,980 

1,480 

444 

502 

502 

733 

21,800 

3,750 

1,210 

2,630 

721 

565

21,800

Minimum

331 

406 

387 

406 

444 

406 

502 

697 

535 

477 

473 

385

331

Mean

646 

565 

409 

438 

469 

558 

1,910 

1,240 

665 

690 

537 

437

714

Run-off in 

acre-feet

39,700 

33,600 

25,200 

26,900 

26,100 

34,300 

114,000 

76,600 

39,600 

42,500 

33,000 

26,000

517,000

GUADAIUPE RIVER BEIOW CUERO, TEX.

LOCATION. Three-fourths mile upstream from Heards Bridge, on Arneckville

fc4 Road and 2% miles southeast of Cuero, Dewitt County.

DRAINAGE AREA. 5,070 square miles (measured on topographic maps, base map 

of Texas, and United States Army progressive military maps).
GUADALUPE RIVER BASIN 129

RECORDS AVAILABLE. August 6, 1916, to September 30, 1926 (fragmentary from 

May 29, 1919, to August 10, 1920). From December 26, 1902, to December 

31, 1906, and August 19, 1915, to August 6, 1916, a station was maintained 

at Schleicher Bridge, 4 miles above this point. Discharge at two sites 

practically the same.

GAGE. Stevens water-stage recorder on left bank; inspected by E. B. Dietze.

DISCHARGE MEASUREMENTS. Made from cable 40 feet upstream from gage, from 

Schleicher highway bridge, from San Antonio & Aransas Pass Railroad 

bridge 6 miles upstream, or by wading near gage.

CHANNEL AND CONTROL. Channel straight above and below station for 1,000 

feet. Bed composed of gravel and small rock; shifts slightly. Left bank 

composed of sand and dirt, covered with brush and open timber; subject to 

overflow above a gage height of 20 feet, the water submerging an area for 1 

mile. Right bank composed of sand and dirt, covered with brush and trees 

on sloping side and cultivated on top; subject to overflow at extremely high 

stages. Control during low and medium stages is rock and gravel rapids 250 

feet below gage; shifts.

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

recorder, 31.5 feet at 3 a. m. April 24 (discharge, 64,400 second-feet); minimum discharge not determined.

1916-1926: Maximum stage about October 20,1919, when recorder was not 

in operation, about 32.2 feet as determined from flood marks on gage house 

(discharge not determined); minimum stage, from water-stage recorder, 

about 0.58 foot from 9 to 10 a. m. November 1, 1917 (discharge, 80 secondfeet; determined from extension of rating curve; possibly slightly in error). 

A stage of 37.6 feet was reached November 4, 1913.

DIVERSIONS. Numerous small diversions above station for irrigation and municipal uses, but flow is probably not materially affected thereby, except 

possibly during extremely low stages.

REGULATION. Flow partly regulated during low and medium stages by operation 

of water-power plants upstream, chiefly by a plant about 8 miles above.

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

from 200 to 15,000 second-feet, fairly well defined from 15,000 to 36,000 

second-feet, and extended above; extension may be subject to considerable 

error. Operation of water-stage recorder not satisfactory. Daily discharge 

determined by applying mean daily gage height to rating table, or by shiftingcontrol method, or, on days of considerable fluctuation in stage, by averaging 

discharge for intervals of a day, except as noted in footnote to table of daily 

discharge. Records poor.

Discharge measurements of Guadalupe River below Cuero, Tex.t during the year

ending September SO, 1926

Date

Oct. 19.. ....

Dec. 20.. 

Gage 

height

Feet 

14.66

1.44

Discharge

Sec.-ft. 

10,200

593

Date

May 12.........

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

Gage 

height

Feet 

4.38

9 ^fi

Discharge

See.-ft.

t) »7Qft

O77

Date

Aug. 27.... ..

Gage 

height

Feet 

1.61

Discharge

Sec.-ft. 

62
130 SURFACE WATER SUPPLY, 1926, PART VIII

Daily discharge, in second-feet, of Guadalupe River below Cuero, Tex., for the year 

ending September SO, 1926

Day

1. 

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

3... 

4... .......

5.- ........

6- 

7..... .....

8... .......

9 ...... .

10. ........

11.. ........

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

13 

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

15.... ......

16 

17 .. _ ....

18. 

19. ..

20.. 

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

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

23. ...

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

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

26. ....

27 . ..

28. ..

29...... _ ....

30.. .

31 

Oct.

510

6,220

5,900

5,180

6,700

10,100

11,600

10, 900

5,970

2,050

1,380

1,200

1,160

1 060

1,100

1,600

1,130

\ 825

Nov.

2,350

1,270

865

3,020

2,800

2,050

1,750

1,410

1,490

1,200

Q7ft

1,100

1 640

1,240

oon

820

Dec.

\ 820

825

786

773

858

780

728

641

728

635

Jan.

1,680

747

702

708

702

7ftfi

695

1 OAft

1,750

1,520

1,160

922

Of O

754

Feb.

[ 760

773

665

QOK

858

806

799

825

895

773

QOC

QIC

QQri

son

QKO

Mar.

858

825

806

780

754

740

786

QQA

825

3,160

3,020

5,500

5,500

1

|3,390

J

2,280

1,820

1,900

1,520

1 340

1,270

2,420

1,710

1,300

3

Qy|ft

4,620

Apr.

6,140

4,060

1,820

1,490

1,380

1,240

1,200

1 680

5,610

6,140

6,940

5,500

2,420

1,110

5,690

n nnn

34,000

61,200

46,800

28,600

15,100

5,580

} 3,980

May

}s,980

5,180

6,620

4,380

4,940

5,900

7,260

6,700

4,780

3,100

2,720

2,580

2,420

2,280

2,200

2,200

'A, yuu

June

1,380

July

890

825

806

786

786

773

1,300

890

890

1,410

890

825

747

806

890

825

689

825

1,200

2,200

2,200

1,820

2,200

1,560

1,270

1,160

Aug.

1,060

990

1,060

955

1,100

1,020

890

792

818

858

858

890

799

740

747

825

792

858

740

766

780

754

647

641

734

653

714

659

665

714

702

Sept72$

708

695

728

708

671

80ft

695

702

702

659-

702 629-

605-

641

647

721

611

48$

683

521

671

563

635

617

482

569

611

635

647

NOTE. Discharge partly estimated Oct. 13-18,28, Nov. 8,19,22, Jan. 23, Feb. 18, Mar. 13,21, and May 3, 

Braced figures show estimated mean discharge for periods indicated.

Monthly discharge of Guadalupe River below Cuero, Tex., for the year ending

September SO, 1926

Month

April. .... 

July 

The year 

Discharge in second-feet

Maximum

11,600 

3,020

61,200 

7,260

2,200 

1,100 

806

61,200

Minimum

641

482

Mean

2,640 

1,240 

746 

1,110 

809 

2,310 

9,000 

3,160 

1,380 

1,090 

814 

649

2,080

Run-off in 

acre-feet

162, 000- 

73,50fr 

45,900 

68,000 

44,90(h 

142,06ft 

535,000 

194,000 

82, 100' 

67,300 50,000- 

38, 600-

1, 500, 000>
GUADALTJPE RIVER BASIN 131

SAN MARCOS RIVER AT OTTINE, TEX.

LOCATION. At highway bridge one-fourth mile southwest of Ottine, Gonzales 

County, and 4 miles below mouth of Plum Creek.

DRAINAGE AREA. 1,250 square miles (measured on topographic maps, base 

map of Texas, and United States Army progressive military maps). (Greater 

part of normal flow comes from large springs in the vicinity of San Marcos.)

RECORDS AVAILABLE. June 22, 1915, to September 30, 1926.

GAGE. Stevens continuous water-stage recorder on right bank just below pier; 

attended by W. C. Meek or Geological Survey engineers.

DISCHARGE MEASUREMENTS. Made from highway bridge or by wading.

CHANNEL AND CONTROL. Bed of sand, clay, and gravel; shifts. Banks wooded. 

Right bank subject to overflow at gage height 28.7 feet and left bank at 

34.0 feet. Channel straight above and below station for 150 feet. Lowstage control is shoal 150 feet below gage.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 40.6 feet 

April 21, determined by levels to flood marks (discharge, 125,000 secondfeet; determined by slope method and may be subject to error). Owing to 

regulation probably no flow about midnight June 24-25.

1915-1926: Maximum stage recorded, that of April 21, 1926; no flow at 

6.30 p. m. July 29, 1923. At noon March 31, 1925, and at midnight June 

24, 1926.

DIVERSIONS. Small amounts of water are diverted above station for irrigation 

and municipal uses, but only a small part of total run-off is used. Little 

water, if any, is diverted below station.

REGULATION. Flow regulated by operation of small cotton gin a short distance 

above station. Operation of several small water-power plants in upper 

drainage basin near San Marcos and Martindale does not materially affect 

flow at this station. 

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

below 3,000 second-feet, fairly well defined from 3,000 to 16,000 second-feet, 

and extended on basis of one slope measurement made at a stage of 40.6 

feet; extension may be subject to error. Operation of water-stage recorder 

not, satisfactory. Daily discharge determined by shifting-control method 

or, on days of considerable fluctuation in stage, by averaging discharge for 

intervals of a day, except as noted in footnote to table of daily discharge. 

Records fair, except those for estimated periods, which are poor.

Discharge measurements of San Marcos River at Ottine, Tex., during the year ending

September 80, 1926

Date

» 

Oct. 23.. 

Dec. 1..........

Mar. 6-. .

Gage 

height

Feet 

2.84

2.63

2.76

Discharge

Sec.-ft. 

213

168

396

217

Date

Apr. 21. _ -

!Msv 10

May 13... 

Gage 

height

Feet

6.34

K Aft

4.12

Discharge

Sec.-ft. 

«126, 000

878

716

420

Date

July 6 - 

Gage 

height

Feet 

4.00

3.22

2.47

2.64

Discharge

Sec.-ft. 

390

250

173

174

1 Determined by slope method.
132 SURFACE WATER SUPPLY, 1926, PART VIII

Daily discharge, in second-feet, of San Marcos River at Ottine, Tex., for the year 

ending September 30, 1926

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.

648

324

143

124

114

112

128

98

98

102

96

308

619

8,780

5,660

3,240

2,460

1,660

935

536

381

264

211

689

246

1 207

1,330

936

Nov.

234

t 168

747

1,780

2,110 7S5

426

312

424

426

(KtA

> 162

Dee.

168

155

164

155

162

148

154

IfiO

154

158

158

158

155

167

1EQ

164

142

164

151

154

154

151

147

136

152

146

152

138

146

Jan.

135

388

CQQ

498

241

189

159

146

160

1 ftQ

160

162

162

163

269

(KtA

ion

91 1

196

Oil

256

264

264

<y*A

218

218

Feb.

218

1QE

211

196

196

196

196

100

1QQ

186

186

1QQ

1QQ

1QC

190

193

IQfi

1QO

17Q

188

189

1QC

IRQ

185

185

175

Mar.

175

1QQ

175

190

,226

OOA

226

1,140

320

1,340

440

}l,300

Apr.

i <*nn

350

1 IWI

285

32,300

12,200

3,490

o oen

1,800

1,380

1,200

1,100

QQC

935

May

935

1,270

935

1 120

1,990

2,050

2,450

1,220

QQC

875

815

775

715

695

675

655

635

675

695

715

735

635

575

i 498

June

498

426

417

501

646

471

399

372

354

337

337

QQ1

363

354

337

328

312

Q1O

312

296

256

288

qnn

272

264

256

358

272

304

July

288

264

248

241

241

248

234

234

234

241

272

256

248

234

234

234

234

296

234

226

441

850

1,600

545

390

337

296

280

256

248

Aug.

248

256

304

256

234

211

218

218

204

218

218

211

911

211

218

234

1,990

204

196

196

168

185

176

185

179

182

189

192

196

196

211

Sept.

195-

195

188

185-

183

175

214

192

192

178

172

148

155

165

165

154

15*

164

157

158

151

144

152

133

141

121

129

159

14ft

156

NOTE. Discharge partly estimated Oct. 16-24, Dee. 1, Mar. 6, Apr. 21-26, May 23, and June 3. Braced 

figures show estimated mean discharge for periods indicated.

Monthly, discharge of San Marcos River at Ottine, Tex., for the year ending

September 80, 1926

Month

November.. ________________________

December. _ _______________ ...

February. _______________ ...

March... __ . _____ . ____ . _______ . ....

April.........- .____ 

May ____ . _ . ____ . ____ . ___ ... r ...

June _____________________________

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

August... . ... ___ ... ...................

September _ ________________________

Discharge in second-feet

Maximum

8,780 

2,110 

168 

599 

218

32,300 

2,450 

646 

1,600 

1,990 

214

32,300

Minimum

96

136 

135

175

256 

226 

168 

121

96

Mean

1,000 

358 

154 

228 

191 

678 

2,370 

865 

361 

337 

268 

164

582

Run-off in 

acre-feet

61, 600- 

21,300 

9,490 

14,000 

10,600> 

41, 700 

141,000 

53,200 

21,500 

* 20, 700 

16,500 

9,760-

421,000

BIANCO EIVEE AT WIMBEEIEY, TEX.

LOCATION. 800 feet below mouth of Cypress Creek, 1,200 feet above low-water

concrete bridge on San Marcos-Wimberley Road, and a quarter of a mile

south of Wimberley, Hays County. 

DRAINAGE AREA. 378 square miles (measured on topographic maps, United

States Army progressive military maps, and base map of Texas). 

RECORDS AVAILABLE. August 6, 1924, to September 30, 1926, when station was

discontinued.
GUADALUPE RIVER BASIN 133

GAGE. Inclined and vertical staff on left bank; read by L. Harrison.

DISCHARGE MEASUREMENTS. Made from cable 100 feet above gage or by wading.

CHANNEL AND CONTROL. Bed of rock and gravel; shifts. Channel straight for 

500 feet above and below gage. Left bank composed of silt and gravel 

overlying limestone ledges, covered sparsely with trees; and not subject to 

overflow; permanent. Right bank of rock, sparsely wooded at low water's 

edge; permanent and pot subject to overflow. Solid rock ledge 200 feet 

below gage forms control; permanent.

EXTREMES OP DISCHARGE. Maximum stage recorded during year, 19.3 feet at 

1.30 p. m. April 21 (discharge, 32,500 second-feet; determined by slope 

method and may be subject to error); minimum stage not determined but 

probably less than 9.0 second-feet.

1924-1926. Maximum stage recorded, that of April 21, 1926; minimum 

stage, 0.26 foot July 30 and 31, 1925 (discharge, 5.8 second-feet).

DIVERSIONS. None of importance.

REGULATION. None.

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

from 5 to 50 second-feet, fairly well defined from 50 to 1,400 second-feet, 

and poorly defined from 1,400 to 34,700 second-feet. Gage read to hundredths twice daily from March 1 to June 30. Daily discharge determined 

by applying mean daily gage height to rating table or by shifting-control 

method. Reco'rds from March 1 to June 30 fair; those for rest of year poor.

Discharge measurements of Blanco River at Wimberley, Tex., during the year ending

September SO, 1926

Date

Mar. 3 __ ..

Gage 

height

Feet 

0.29

.40

.46

Discharge

Sec.-ft. 

7.4

20.8

Date

Mar. 30... 

DoDo 

a

Feet 

1.38

1.83

1 QK

Discharge i

Sec.-ft. 1

582

647

Date

Apr. 21.......

Apr. 23. __ ..

height

Feet 

19.3

2.68

1.18

Discharge

Sec.-ft. 

» 32, 500

1,200

233

« Discharge obtained by slope determination and Kutter's formula.

Daily discharge, in second-feet, of Blanco River at Wimberley, Tex., for the year 

ending September SO, 1926

Day

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

2-- 

3_ . -_._ ..

4^.... ............

5. ..

6. ..-

7__ 

8_ 

9_ 

10. 

11.. 

12 .. ... ... 

13- .

14. .....

15. 

Mar.

26

26

26

33

40

29

26

26

26

75

86

86

71

64

64

Apr.

167

154

133

127

122

111

119

108

98

91

86

103

101

93

89

May

258

348

291

702

844

898

482

368

358

318

269

257

257

240

224

June

108

101

491

160

114

96

89

84

167

114

QQ

84

Day

16 - .

17. .

18 

19- - 

21 . 

22. 

23 

24. .. 

25. 

26. 

27- 

28-. 

on

30- 

31- 

Mar.

64

98

96

96

122

119

108

96

81

122

101

101

98

96

376

224

Apr.

89

89

89

84

1,600

10,600

2,250

1,210

895

715

545

423

396

363

348

May

202

286

213

273

278

202

174

. 160

154

148

142

136

130

125

114

108

June

77

71

66

66

79

75

66

68

68

66

66

66

157

98

75
134 SURFACE WATER SUPPLY, 1926, PART VIII

Monthly discharge of Blanco River at Wimberley, Tex., for the year ending 

September 80, 1926

Month

November.... _ _.___.._ .... . ...-...-----.

AprU.. ................. ... ..... . ... .............

June

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

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

Discharge in second-feet

Maximum

»

376 

10,600 

898 

491

10,600

Minimum

26 

84 

108 

66

Mean

78.0

87.2 

713 

289 

111

I 60.0

147

Run-off in 

acre-feet

23,400

5,360 

42,400 

17,800 

6,600

10,900

106,000

NOTE. Mean discharge and total run-off estimated from Oct. 1 to Feb. 28 and from July 1 to Sept. 30. 

PLUM CREEK NBAS LOCKHABT, TEX.

LOCATION. At steel highway bridge on Lockhart-Sea Willow-Tilmon highway, 

700 feet below mouth of Dry Creek and 7 miles southeast of Lockhart, Caldwell County.

DRAINAGE AEEA. 184 square miles (measured on topographic maps and base 

map of Texas).

RECORDS AVAILABLE. January 13, 1925, to September 30, 1926.

GAGE. Inclined and vertical staff gage on right bank at upstream side of bridge; 

read by Otto Anton.

DISCHARGE MEASUREMENTS. Made from highway bridge or by wading.

CHANNEL AND CONTROL. Bed of sand and clay; shifts. Channel straight for 

200 feet above and 250 feet below bridge. Both banks of earth, heavily 

wooded, and subject to overflow. Before bank-full stage is reached at the 

bridge, both banks are overflowed above and bridge is surrounded by water. 

Low-water control formed by clay and drift shoal 10 feet below gage; subject 

to shift. High-stage control indefinite.

EXTREMES OP DISCHARGE. Maximum stage during year, by levels to flood marks 

22.6 feet at 11 p. m. April 21 (discharge, 26,000 second-feet); minimum 

discharge, 0.60 second-foot August 12-15, September 17-25 and 30.

1925-1926: Maximum stage, that of April 21, 1926; no flow July 2 to 

September 12, 1925.

DIVERSIONS. None.

REGULATION. None.

ACCURACY. Stage-discharge relation not permanent. Rating curve well defined below 1,600 second-feet and extended through one slope measurement 

made at a stage of 22.6 feet. Gage read to hundredths twice daily. Daily 

discharge determined by applying mean daily gage height to rating table 

or, on days of considerable fluctuation in stage, by averaging discharge for 

intervals of a day, using gage-height graph based on daily gage readings. 

Shifting-control method used April 24 to May 3 and July 11 to September 

30. Daily records poor; monthly records fair.
GUADALUPE RIVER BASIN 135

Discharge measurements of Plum Creek near Lockhart, Tex., during the year ending

September SO, 1926

Date

Oct. 14--.....

Do......

Oct. 23--.....

Gage 

height

Feet 

15.32

13.72

.66

Discharge

Sec.-ft. 

1,450

1,130

9 04

Date

Apr. 21. ......

Apr. 28 

Gage 

height

Feet 

22.60

1.83

1.70

Discharge

Sec.-ft. 

"26,000

21.8

17.5

Date

July 6 - .

Aug. 26.. .....

Gage 

height

Feet 

1.01

.55

.45

Discharge

Sec.-ft. 

5.9

H.60

.78

1 Discharge determined by slope method. fr Discharge estimated.

Daily discharge, in second-feet, of Plum Creek near Lockhart, Tex., for the year 

ending September SO, 1926

Day

1 

2 .

3-. 

4 .....

5 __ ...

6 ....

7 

8 

9 

10 

11 

12 

13 

14 _ ....

15 

16 

17 

18 

19.. 

20 

21 

22 ___ ..

23 

24.......

25 

26 

27.......

28.. _ ..

29.......

30 

31 

Oct.

4 8

2.8

2.3

2.3

2.2

9 1

2.0

2.0

9 1

2.1

2.0

17

261

3,280

85

2,400

316

20

9.6

6.7

4.5

3.0

2.3

2.0

7.3

4.5

2.4

2.2

2.2

388

56

Nov.

16

11

8.8

450

1,640

152

40

20

17

11

8.0

6.7

6.7

5.0

4.2

3.8

3.1

3.1

3.1

3.1

3.0

2.9

3.0

3.0

3.C

3.0

2.9

2.8

2.8

Dec.

9 8

2.8

2.8

2.8

2.8

2.8

2.8

2.8

2.8

2.8

2.8

2.8

2.8

2.8

2.8

5.2

4.5

4.5

8.0

4.9

4.8

4.6

3.5

3.1

3.1

3.1

3.1

3.1

3.1

3.1

Jan.

16

144

251

55

25

16

12

9.1

6.7

5.2

5.2

4.6

4.2

4.0

3.9

3.8

160

44

14

86

41

30

13

8.6

8.4

53

59

28

19

17

14

Feb.

11

Q 1

8.0

7.5

7.0

5.2

5.2

4.6

4.5

4.5

4.3

4.3

4.3

4.3

4.2

4.0

4 Q

3.9

3.9

3.9

3.9

3.8

3.5

3.3

3.3

3.3

3.2

3.0

Mar.

3 A

3.0

2.8

4.1

7.8

5.2

42

14

2,500

122

60

46

30

221

487

120

57

108

82

25

12

526

91

26

19

20

1,050

80

Apr.

28

99

20

19

19

10

31

26

24

248

112

44

18

17

18

18

17

17

15

422

11,500

7,360

145

92

44

30

26

21

20

20

May

60

4fi

22

383

126

1,160

33

30

25

91

18

17

17

17

16

16

16

22

19

19

18

 18

17

16

16

15

14

14

14

14

June

367

233

19

14

41

21

14

6.0

5.9

4.5

3.9

4.9

4.5

4.5

4.1

3.9

3.6

3.3

3.1

2.8

2.8

2.7

13

4.9

3.9

3.8

3.4

2.8

2.3

2.1

July

1.5

14

19

2.2

1.8

10

3.5

2.7

17

5.3

3.3

2.6

15

14

7.9

4.6

3.4

2.6

2.1

1.5

1.2

.9

Aug.

0.9

23

3.1

1.7

1.0

.8

.8

.8.'8

.7

.7

.6

.6

.6

.6

.8

.8

.8

.e

.9

.8

.8

.8

.8

.8

.7

.8

.9

.9

.8

.8

Sept.

0.8

.8

.8

.8

.7

.7

.8

.8

.8

.8

.8

2.4

1.9

1.0

.7

.7

.6

.6

.6

.6

.6

.6

.6

.6

.6

.8

.8

,7

.7

.6

NOTE. Discharge partly estimated Apr. 27. Braced figure shows estimated mean discharge for period 

indicated.

Monthly discharge of Plum Creek near Lockhart, Tex., for the year ending September

SO, 1926

Month

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

Discharge in second-feet

Maximum

3,280 

1,640 

8.0 

251 

11 

2,500 

11,500 

1,160 

367 

19 

23 

2.4

11,500

Minimum

2.0 

2.8 

2.8 

3.8 

3.0 

2.8 

15 

14 

2.1 

.9 

.6 

.6

.6

Mean

222 

81.7 

3.48 

37.:4 

4.82 

199 

680 

77.5 

26.9 

4.83 

1.61 

.81

112

Run-off in 

acre-feet

13,700 

4,860 

214 

2,300 

268 

12,300 

40,500 

4,770 

1,600 

297 

98.8 

48.2

81,000
136 SURFACE WATER SUPPLY, 1926, PART VIII

SAN ANTONIO EIVEE AT SAN ANTONIO, TEX.

LOCATION. At South Alamo Street Bridge in San Antonio, Bexar County, 4 

miles below San Antonio Springs, source of normal flow of river, and 1% 

miles above mouth of San Pedro Creek.

DRAINAGE AREA. 38 square miles (measured on topographic map and United 

States Army progressive military maps.

RECORDS AVAILABLE. January 26, 1915, to September 30, 1926. Miscellaneous 

discharge measurements were made from 1895 to 1906.

GAGE. Gurley graph water-stage recorder on right bank at downstream side of 

bridge; attended by employees of city of San Antonio.

DISCHARGE MEASUREMENTS. Made from bridge or by wading.

CHANNEL AND CONTROL. Channel is straight for 100 feet below and curved 

above gage. Bed composed of sand, gravel, and silt. Control formed by 

gravel bar; shifts.

EXTREMES OF DISCHARGE. Maximum stage during year, 8.30 feet at 4.30 p. m. 

April 20 (discharge about 1,940 second-feet); minimum stage, 1.25 feet 

at 3.40 a. m. November 29 (discharge, 7.7 second-feet).

1914-1926: Maximum stage determined from flood marks on gage, 20.14 

feet at 3 a. m. September 10, 1921 (discharge, 15,300 second-feet, determined 

by slope method and Kutter's formula); minimum discharge, 5.1 second-feet 

at 10 a. m. July 12, 1925. City of San Antonio turned flow from well into 

river during summer of 1925 to keep it from going dry.

DIVERSIONS. Quantity of water diverted above gage not known, but believed 

to be negligible. Considerable land is irrigated from diversions below gage.

REGULATION. Operation of water wheels at Guenther Flour Mills, just above 

gage, causes sharp fluctuations in stage.

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

from 19 to 300 second-feet and poorly defined above. Operation of waterstage recorder satisfactory, except as noted. Daily discharge determined 

by shifting-control method or, on days of considerable fluctuation in stage, 

by averaging discharge for intervals of a day except as noted in footnote 

to table of daily discharge. Records good.

Normal flow of San Antonio River comes from springs within city limits, 

but two tributaries from the north furnish considerable run-off at times of heavy 

precipitation. Changes in mean daily stage during periods of low flow are believed 

to be due to pumping from deep wells for city water supply, and use of artesian 

water for irrigation in areas adjacent to the river, for it is thought that the wells 

draw from the underground reservoir that feeds the river by springs.

Discharge measurements of San Antonio River at San Antonio, Tex., during the 

year ending September SO, 1926

Date

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

Dec 4

Gage 

height

Feet 

1.68

1.68

Discharge

Sec.-ft.

. 29.0

Date

Mar. 6__ __ .

Gage 

height

Feet 

1.70

1.38

Discharge

Sec.-ft. 

36.6

27.9

Date

Apr. 17 . 

Gage 

height

Feet 

1.61

1.88

Discharge

Sec.-/*. 

46 E

SA
GtTADALtTPE RIVER BASIN 137

Daily discharge, in second-feet, of San Antonio River at San Antonio, Tex., for the 

year ending September 30, 1926

Day

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

2.... ...... _ >.

3 -. . 

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

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

6... __ .. __ ..

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

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

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

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

11. __ ........

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

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

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

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

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

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

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

19- 

20 

21 

22 _ ..

23 .. .

24. __ .. _

25 _ ...

26 

27 

28 

29. _

30- _

31 

Oct.

2(1

28

26

29

29

28

2S

28

27

1 * I *

60

34

28

SO

31

30

31

32

32

30

33

32

31

30

34

30

28

Nov.

28

35

32

32

40

49

34

31

32

31

30

35

36

36

32

34

sn

35

38

36

31

29

32

si

28

S9

33

00

31

40

Dec.

34

32

33

31

28

28

41

34

31

32

32

32

32

32

36

32

33

33

30

30

31

29

24

26

27

97

97

27

97

26

26

Jan.

64

43

36

36

38

" 36

35

34

35

32

34

32

33

33 1O

61

35

34

34

34

36

31

36

SO

36

S9

33

Qd

35

37

36

Feb.

37

37

36

36

34

35

32

40

35

32

35

36

36

34

34

33

34

32

31

32

30

32

31

S1

30

36

29

24

Mar.

26

26

25

25

26

27

28

26

36

58

32

33

34

33

34

57

64

41

45

49

49

50

48

46-

66

48

47

49

85

4Q

Apr.

47

48

44

43

47

46

44

43

66

115

49

50

52

45

46

45

45

42

44

543

442

150

124

124

111

114

112

112

116

126

May

131

1 131

238

131

131

133

169

142

126

126

121

121

121

117

119

116

114

116

117

June

114

112

111

168

106

103

103

98

96

95

111

95

92

94

89

84

82

80

82

80

82

91

79

77

79

79

114

83

83

80

July

79

92

82

80

80

82

79

75

70

69

67

69

69

68

65

62

61

59

61

59

57

63

59

59

58

58

57

56

55

54

53

Aug.

52

53

54

54

52

52

50

49

53

48

48

47

45

49

47

48

46

47

43

44

42

40

43

45

36

36

41

43

41

45

41

Sept.

41

40

40

41

41

40

40

39

39

38

37

34

36

34

33

35

35

35

37

39

38

35

36

35

34

34

35

38

35

34

NOTE. Discharge partly estimated or interpolated Oct. 3, Nov. 22, Dec. 27, Apr. 20-24, May 1, 5,15, 22, 

June m 4, 5, July 24-31, Sept. 4-11. Braced figures show estimated mean discharge for periods indicated.

Monthly discharge of San Antonio River at San Antonio, T.ex., for the year ending

September, 30, 1926

Month

November.. ________________________

February- _________________________

April.. .. 

June _____________ ______________

July 

Discharge in second-feet

Maximum

60 

49 

41 

64 

40 

85 

543 

238 

168 

92 

54 

41

543

Minimum

28 

24 

31 

24 

25 

42 

114 

77 

53 

36 

33

Mean

30.2 

33.7 

30.4 

36.6 

33.4 

42.2 

101 

132 

94.7 

66.4 

46.3 

36.9

57.0

Run-off in 

acre-feet

1,860 

2,000 

1,870 

2,250 

1,860 

2,590 

6,020 

8,100 

5,640 

4,080 

2,840 

2,200

41,300

SAN ANTONIO BIVEE NEAR FAIIS CITY, TEX.

LOCATION. At Falls City-Campbellton highway bridge, half a mile above 

mouth of Scared Dog Creek and 3.4 miles southwest of Falls City, Karnes 

County.

DRAINAGE AREA. 2,070 square miles (measured on topographic maps, base map 

of Texas, and United States Army progressive military maps).

RECORDS AVAILABLE. April 14, 1925, to September 30, 1926.
138 SURFACE WATER SUPPLY, 1926, PART VIII

GAGE. Stevens continuous recorder just above bridge on left bank; attended 

by Chris Ploch.

DISCHARGE MEASUBEMENTS. Made from highway bridge by wading or from 

bridge just below Falls City.

CHANNEL AND CONTBOL. Channel straight for half a mile above and below gage. 

Bed of mud; shifts. Right bank of earth, wooded, and subject to overflow 

at extremely high stages. Left bank of earth, wooded, and not subject to 

overflow. Both banks fairly permanent. One channel below gage height 

23 feet and two above. Control for low arid intermediate stages is solid 

rock ledge half a mile below gage; permanent.

EXTBEMES OF DiscHABGE. Maximum stage during year, from water-stage 

recorder, 10.53 feet at 11.40 p. m. April 23 (discharge, 9,260 second-feet); 

minimum stage, 1.07 feet from 3 p. m. October 12 to 10.30 p. m. October 

13 (discharge, 65.0 second-feet).

1925-1926: Maximum stage, from water-stage recorder, that of April 

23, 1926; minimum stage, 1.01 feet August 2, 1925 (discharge, 48 secondfeet).

DIVERSIONS. Medina Reservoir, having a capacity of 254,000 acre-feet, is 

on Medina River about 50 miles above its confluence with San AntonioRiver.

REGULATION. Slight regulation by Medina Dam.

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

defined from 40 to 9,000 second-feet. Operation of water-stage recorder 

not satisfactory. Daily discharge determined by applying to rating table 

mean daily gage height obtained from recorder graph by inspection, by 

averaging discharge for fractional parts of a day, or as noted in footnote 

to table of daily discharge. Records poor.

Discharge measurements of San Antonio River near Falls City, Tex., during the 

year ending September 80, 1926

Date

Oct. IS.... .

Dec. 12...... ...

Jan. 19..... 

Apr. 4 . 

Gage 

height

Feet 

1.10

1.22

1.31

1.30

Discharge

Sec.-ft. 

74

109

170

163

Date

Apr. 22... ..

Do..........

Apr. 23. __ ....

Do.... ......

Gage 

height

Feet 

6.26

8.78

9 fi7

Discharge

Sec.-ft. 

4,740

4,790

7,370

8,190

Date

Apr. 23... 

JulyS. 

Gage 

height

Feet 

10.04

1.36

1.28

1 13

Discharge

Sec.-ft. 

8,750

231 159-

86

Daily discharge, in second-feet, of San Antonio River near Falls City, Tex., for the 

year ending September SO, 1926

Day

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

2. .. ......

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

4.. _____ . _

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

6. __ .. . . .

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

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

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

10...-..... ...

11 

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

13 

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

15 

Oct.

240

84

78

74

78

78

78

74

74

71

71

82

65

78

74

Nov.

92

95

92

92

92

110

571

350

102

Dec.

109

110

129

194,

119

Jan.

119

19d

OOQ

*>fi4

198

140

134

134

122

109

120

Feb.

120

119

ion

Mar.

129

124

124

202

140

119

114

Apr.

534

248

91ft

iftft

188

182

600

May

9 ^nn

1 3Sfi

\ Qflft

June

290

270

} 200

July

160

150

145

145

145

316

169

Aug.

119

114

124

124

119

114

95

IfiQ

102

98

109

Sept.

98.

QK

QC

QC

QC

QR.

109

106

9&QP;

92

QQ

84

QA

88
GtJADALTJPE RIVER BASIN 139

Daily discharge, in second-feet, of San Antonio River near Falls City, Tex., for the 

year ending September SO, 1926 Continued

Day

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

17 . 

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

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

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

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

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

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

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

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

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

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

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

29. __ ..........

30 .

31 .. _ ....

Oct.

937

259

96

98

92

Q9

88

88

09

92

95

92

Q9

92

92

Nov.

> 135

109

109

Dec.

1

| 140

1

129

120

11Q

124

124

119

Jan.

171

 140

119

124

120

Feb.

120

109

105

Mar.

281

381

226

182

182

182

182

176

286

eon

242

176

366

Apr.

160

166

160

155

160

960

7,950

7,250

>9 ^fift

I

May

 RI i

> Win

237

290

June

> 200

270

193

190

July

145

150

150

i^l

129

140

134

150

134

134

114

114

119

Aug.

102

106

102Q>;

95

84

81

81

81

78

78

78

74

100

92

95

Sept.

no

84

84

84

81

81

84

81

81

81

81

78

74

81

81

NOTE. Discharge partly estimated Nov. 29, Dec. 1,12, 15, 21, 27, Jan. 8, 10, 19, 24, 25, Feb. 7, 21, Mar. 

7, Apr. 2,4,6,16, May 2, 1C, 30, June 13, 24,25, July 2, 8. Discharge interpolated Apr. 3. Braced figures 

show estimated mean discharge for periods indicated.

Monthly discharge of San Antonio River near Falls City, Tex., for the year ending

September 80, 1926

Month

April..... _ .. . 

Discharge in second-feet

Maximum

286

590 

7,950

316 

145 

109

7,950

Minimum

65 

92

114

74

74

65

Mean

106 

189 

121 

143 

116 

213 

1,450 

739 

238 

153 

101 

88.3

304

Run-off in 

acre-feet

6,510 

11,200 

7,420 

8,770 

6,430 

13, 100 

86, 100 

45,500 

14,200 

9,410 

6,210 

5,250

220,000

SAN ANTONIO RIVER AT 80IIAD, TEX.

LOCATION. At Galveston, Harrisburg & San Antonio Railway bridge in Goliad,

Goliad County, 6}^ miles above mouth of Manahuilla Creek. 

DRAINAGE AREA. 3,910 square miles (measured on topographic maps, United

States Army progressive military maps, and ba$e map of Texas). 

RECORDS AVAILABLE. June 19, 1924, to September 30, 1926. 

GAGE. Chain gage attached to upstream guardrail of bridge; read by J. T. Lacy. 

DISCHARGE MEASUREMENTS. Made from railroad bridge or by wading. 

CHANNEL AND CONTROL. Bed of sand; subject to shift. Channel straight for

150 feet above and half a mile below gage. Bank covered with heavy growth

of brush and light timber; right bank subject to overflow at medium stages;

left bank not subject to overflow. Control is indefinite; formed by bed and

banks of stream and brush along banks. 

EXTREMES OP DISCHARGE. Maximum stage recorded during year, 31.0 feet at

8 p. m. April 25 (discharge, 11,900 second-feet); minimum stage, 3.72 feet

September 26-30 (discharge, 85 second-feet).

1924-1926: Maximum stage recorded, that of April 25, 1926; minimum

stage, 3.19 feet at 7.45 a. m. August 24, 1925 (discharge, 58 second-feet).

96272 30 10
140 SURFACE WATER SUPPLY, 1926, PART VIII

DIVERSIONS. Medina Reservoir, with storage capacity of 254,000 acre-feet, is 

on Medina River about 50 miles above its confluence with San Antonio 

River. Diversion works 4 miles below dam have a capacity of 850 secondfeet.

REGULATION. None.

ACCURACY. Stage-discharge relation not permanent. Rating curve well 

defined from 90 to 4,000 second-feet and fairly well defined from 4,000 to 

12,000 second-feet. Gage read to hundredths twice daily. Daily discharge 

determined by shifting-control method or, on days of considerable fluctuation in stage, by averaging discharge for intervals of a day. Records fair.

Discharge measurements of San Antonio River at Goliad, Tex., during the year 

ending September SO, 1926

Date

Oct. 17. 

Do 

Dec. 19 

Apr. 15 _ ... 

Apr. 24 _ .. 

Gage 

height

Feet 

12.44

11.47

4.33

6.38

28.86

Discharge

Sec.-ft.

1 Q4.fl

1,690

152

513

a Q RQfl

Date

A rvr 9*

Apr. 28 .

Do .. 

Apr. 27 

Do 

Gage 

height

Feet 

30 69

30.67

29.89

19.37

17 Q7

Discharge

Sec.-ft. 

-11,200

 11,600

 9,860

3,350

2,900

Date ,

Apr. 27. . .

Do...... 

July?.. 

Sept. 14..... 

Gage 

height

Feet 

16.94

14.88

5.02

3.93

Discharge

Sec.-ft. 

2,640

2,160

248

106

 Surface velocities observed for part of measurement and coefficient used to reduce to mean velocities.

Daily discharge, in second-feet, of San Antonio River at Goliad, Tex., for the year 

ending September SO, 1926

Day

1. _ .. ._ 

2. _

3 

4. ____ . ___

5 

«.- . .

7 _ .

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

Ifl 

20 .

 21 

22 

.23. _ 

24 

25 

26.. .

27 

.28 

29. _ 

.30 . __ ..

31.. _

Oct.

282

1,530

438

224

133

115

110

102

93

97

89

89

498

6,900

7,310

2,780

1,880

1,260

617

409

340

230

166

166

154

154

203

166

166

154

Nov.

166

166

154

154

154

154

154

158

651

714

537

306

216

133

138

133

110

119

736

274

216

178

154

133

110

106

102

102

102

133

Dec.

143

133

133

133

133

133

133

133

133

154

154

1 *vl

143

143

154

178

178

190

154

154

154

154

143

143

133

133

133

154

190

216

230

Jan.

274

391

3 "57

248

O1A

ono

1QA

ion

154

164

1 KA.

164

164

164

164

143

332

323

306

01 e

ion

166

1 t\A.

i/lo

143

143

133

143

Feb.

133

133

124

124

120

120

133

143

143

14.S

143

143

133

133

143

143

143

133

133

133

133

124

124

124

124

124

120

Mar.

120

120

110

110

110

120

124 19*5

1 RA

1,100

679

374

340

261

194

369

1,050

1,000

QRA

704

074.

O*Jf|

203

ion

170

166

289

427

638

693

Apr.

575

445

290

216

178

17S

203

17ft

1,500

4,860

4,110

1,680

833

501

O^A

290

244

210

203

203

1,410

5,130

8 480

n'itnn

10,600

3,330

1,070

931

931

May

777

1,050

2,460

1,490

1,000

1,450

2,270

9 7Qfl

2,620

1,480

842

714

633

594

499

516

3,550

2,310

908

653

4.QQ

499

AAK

Wl

391

357

323

323

323

June

323

445

340

306

391

409

575

518

445

323

290

974.

259

244

216

216

203

. 178

178

190

203

203

216

348

4«3

374

259

203

190

178

July

178

178

166

166

166

ion

230

216

216

203

178

166

192

636

648

501

203

190

190

178

178

190

688

383

383

166

244

203

154

154

143

Aug.

143

143

154

143

143

143

143

143

133

143

154

143

143

143

143

143

143

143

143

143

133

133

133

133

133

133

133

124

124

106

110

Sept.

120

120

102

102

120

120

120

110

106

102

102

102

93

102

102

102

102

102

102

93

93

93

93

93

89

85

85

85

85

85
GtTADALTTPE RIVER BASIN 141

Monthly discharge at San Antonio River at Goliad, Tex., for the year ending 

September 30, 1926

Month

October ___________________________

April. _ .. _ 

-June.-.-. .-. . _ ... . .

July 

August ___________________ . .................

Discharge in second-feet

Maximum

7,310 

736 

230 

391 

143 

1,100 

11,400 

3,550 

575 

688 

154 

120

11,400

Minimum

89 

102 

133 

133 

120 

110 

166 

323 

178 

143 

106 

85

85

Mean

872 

222 

153 

203 

132 

385 

2,020 

1,070 

299 

248 

138 

100

488

Run-off in 

acre-feet

53,600 

13,200 

9,410 

12,500 

7,340 

23,700 

120,000 

65,600 

17,800 

15,300 

8,460 

5,970

353,000

SAW PEDRO CREEK AT SAN ANTONIO, TEX.

LOCATION. At south end of Missouri-Kansas-Texas Railroad culvert 200 feet 

south of Arsenal Street crossing, 1 mile above mouth of Salsamora and 

Martinez Creeks, 2 miles below San Pedro Springs, its source, and 2% miles 

above confluence with San Antonio River.

DRAINAGE AREA. Indeterminate.

HECORDS AVAILABLE. July 20, 1916, to September 30, 1926.

 GAGE. Gurley 7-day water-stage recorder; attended by engineers of city of San 

Antonio.

DISCHARGE MEASUREMENTS. Made by wading or from bridge in vicinity.

CHANNEL AND CONTROL. Bed and banks of smooth concrete; permanent. Lowstage control is a 4 by 4 inch timber bolted across bed of flume. Channel 

straight above and below station.

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

recorder, 6.4 feet at 11 a. m. April 20 (discharge, 1,070 second-feet); minimum stage, 0.26 foot for short period August 16 (discharge, zero).

1916-1926: Maximum stage recorded, 8.6 feet at 11.30 p. m. September 9, 

1921, when backwater from Alizan Creek existed (discharge not determined); 

minimum stage, that of August 16, 1926.

DIVERSIONS. None. /

REGULATION. Flow partly regulated by small dam at swimming pool in San 

Pedro Park, a few miles above.

ACCURACY. Stage-discharge relation not permanent. Rating curve well-defined below 200 second-feet and extended above on basis of determinations 

from Kutter's formula. Operation of water-stage recorder satisfactory, 

except as noted. Daily discharge determined by shifting-control method 

or, on days of considerable fluctuation in stage, by averaging discharge for 

intervals of a day, except as noted in footnote to table of daily discharge. 

Records fair.

Entire flow of San Pedro Creek, except during times of heavy precipitation, is 

furnished by San Pedro Springs, and the flow at this station is believed to be that 

which reaches San Antonio River. Martinez and Salsamora Creeks carry no 

water except during heavy local rains and have been known to be dry for several 

years at a time.
142 SURFACE WATER SUPPLY, 1926, PART VIII

Discharge measurements of San Pedro Creek at San Antonio, Tex., during the year 

ending September SO, 1926

Date

Oct. 13 _ . _ . _____ . _

Dec. 4 _____________

Gage 

height

Feet 

0.50

.50

Discharge

Sec.-ft. 

7.31

6.58

Date

Mar. 6... 

Gage 

height

Feet 

0.48

.51

Discharge

8ee.-fti 

6.76

9.18

Daily discharge, in second-feet, of San Pedro Creek at San Antonio, Tex., for the 

year ending September SO, 1926

Day

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

2... _____ ...

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

4. _______ ...

5... _ 

6... ... ___ ...

7.- _ ......

8 ___ . _ .....

9... ____ ....

10 __ . ____ ..

11.. __ . ___ ..

12. ____ .......

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

14.... ___ .. ...

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

16. . _ .

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

18. __ _ .... ...

19..... ___ .....

20......... _ ...

21 _ . ___ ......

22...... ____ ..

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

24.... ___ .....

25 _ . _____ ..

26. _ . _ ....

27. ___ . ___ ..

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

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

30.... ____ ....

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

Oct.

8.0

6.5

6.5

6.5

6.0

6.0

6.0

6.0

6.0

6.5

6.5

7.5

7.5

9.0

34

8.5

6.5

6.5

6.5

6.5

6.5

6.5

6.5

6.5

7.5

6.5

6.5

6.5

7.5

7.0

6.5

Nov.

6.5

7.0

7.0

7.0

16

12

8.0

7.0

7.0

6.5

6.5

6.5

6.5

6.5

6.5

6.5

6.5

6.5

6.5

6.5

6.5

6.5

6.5

6.5

7.0

7.0

9.0

6.5

6.0

6.5

Dec.

6.5

6.5

6.5

6.5

6.5

6.5

10

7.5

6.0

6.0

6.0

6.0

6.0

6.0

9.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.5

6.5

6.5

6.5

Jan.

19

11

8.0

8.0

7.0

6.0

6.0

6.0

6.0

6.0

6.0

5.6

5.6

5.6

5.6

18

7.5

6.5

6.5

6.5

8.0

6.5

8.5

0 fi

7.5

7.5

7.5

10

7.5

7.5

7.5

Feb.

7.5

7.5

7.0

7.0

7.0

7.0

7.0

7.0

7.0

7.0

7.0

7.0

7.0

7.0

7.0

7.0

7.0

7.5

7.5

7.5

8.0

8.0

11

8.5

8.0

7.5

8.0

8.0

Mar.

8.0

7.5

7.0

7.5

7.0

7.5

7.0

7.0

13

15

7.0

7.0

7.0

7.0

7.0

16

16

9.0

8.5

8.5

8.5

8.0

8.0

7.5

12

9.6

7.5

7.5

8.0

20

6.5

Apr.

6.5

6.5

6.5

6.5

6.0

6.0

6.0

6.5

20

11

9.6

9.0

8.5

8.5

9.0

8.5

7.0

9.1

9.0

163

35

16

13

14

14

13

13

13

14

17

May

21

14

15

15

44

18

14

14

14

14

16

30

16

15

15

14

14

14

14

14

13

14

13

12

12

11

June

11

9.6

9.6

20

13

13

11

11

8.0

8.5

21

11

10

9.6

9.6

9.6

10

11

11

12

11

14

11

11

11

7.5

24

13

11

12

July

13

15

11

9.6

9.0

9.0

9.0

9.0

9.0

7.5

9.6

9.6

8.0

9.6

8.5

8.0

6.5

8.5

9.0

9.0

9.6

13

8.5

8.5

10

9.6

8.5

9.0

9.6

8.0

9.6

Aug.

10

7.0

8.5

10

11

5.6

7.0

8.5

6.0

7.0

7.5

10

7.5

8.5

8.5

4.0

7.0

7.5

8.5

6.5

7.5

9.0

4.0

7.5

7.5

8.0

7.0

7.5

7.5

4.4

5.2

Sept.

6.5

7.5

6.5

8.5

9.0

8.5

8.5

8.5

10

5.2

7.0

8.5

7.5

8.0

8.5

8.5

7.0

7.5

9.0

9.0

8.5

8.0

9.0

6.5

8.5

9.6

7.0

7.5

8.0

8.0

NOTE. Discharge partly estimated Mar. 6,11-13, 31, Apr. 1-2, May 15, and Sept. 18. Braced figures 

showestimated mean discharge for periods indicated.

Monthly discharge of San Pedro Creek at San Antonio, Tex., for the year ending

September SO, 1926

Month

December ____ ... _____ ______ _______

February. _________________________

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

May ..__--

June.. . _ 

July-. . . . ....

August ________ 

Discharge in second-feet

Maximum

34 

16 

10 

19 

11 

20 

163 

44 

24 

15 

11 

10

163

Minimum

6.0 

6.0 

6.0 

5.6 

7.0 

6.5 

6.0 

11 

7.5 

6.5 

4.0 

5.2

4.0

Mean

7.65 

7.23 

6.44 

7.88 

7.48 

9.12 

16.2 

15.8 

11.8 

. 9.40 

7.46 

7.99

9.54

Run-off in 

acre-feet

470 

430 

396 

484 

416 

561 

961 

972 

704 

578 

459 

476

6,910
GTJADALUPE RFVER BASIN 143

MEDINA RIVER NEAR PIPE CREEK, TEX.

LOCATION. 3 miles above backwater from Medina Dam, 3% miles above mouth 

of Pipe Creek, and 4 miles southwest of Pipe Creek post office, Bandera 

County.

DRAINAGE AREA. 412 square miles (measured on United States Army progressive military maps).

KECORDS AVAILABLE. December 6, 1922, to September 30, 1926.

OAGE. Stevens 8-day water-stage recorder on left bank; inspected by R. E. 

Buck.

DISCHARGE MEASUREMENTS. Made by wading or by timing drift.

CHANNEL AND CONTROL. Bed consists of rock and gravel and some moss. Channel 

straight for 1,000 feet above and below gage. Right bank rocky, thickly 

wooded with small trees and brush, and not subject to overflow; left bank 

of sand, gravel, and rock, sparsely covered with small trees, and subject to 

overflow at a stage of 9 feet. Low-water control, up to a stage of about 

0.80 foot, consists of concrete weir 100 feet below gage. Weir is about 1.5 

feet high for a width of 95 feet, with abutments 4 feet higher than crest. 

Rock riffle 600 feet below gage serves as control for medium stages.

EXTREMES OP DISCHARGE. Maximum stage recorded during year, 19.8 feet 

April 21 (discharge not determined); minimum discharge, 6.8 second-feet 

September 26-27.

1922-1926: Maximum stage recorded, that of April 21, 1926; minimum 

stage, 0.56 foot August 29, 1925 (discharge, 2.7 second-feet).

DIVERSIONS. None above. Medina Reservoir, with storage capacity of 254,000 

acre-feet, is below. Diversion works have a capacity of 850 second-feet, 

but only a small percentage of this capacity was used in 1923-1926.

REGULATION. None.

ACCURACY. Stage-discharge relation not permanent. Rating curve well denned 

below 80 second-feet, fairly well denned from 80 to 250 second-feet, poorly 

denned from 250 to 5,500 second-feet, and extended above to cover the 

maximum mean daily stage for the year; extension may be subject to considerable error. Operation of water-stage recorder not satisfactory. Daily 

discharge determined by shifting-control method or, on days of considerable 

fluctuation in stage, by averaging discharge for intervals of a day, except as 

noted in footnote to table of daily discharge. Records for low stages fair; 

for high stages, poor.

Discharge measurements of Medina River near Pipe Creek, Tex., during the year 

ending September SO, 1926

Date

Oct. g^^-

Oot. 15... .-

Oct. 16... .

Gage 

height

Feet 

0.64

9.20

8.40

Discharge

Sec-feet 

9.10

"5,550

"4,820

Date

Mar. 5____ 

July 10.......

Gage 

height

Feet 

0.78

.74

.78

Discharge

Sec.-feet 

30.7

25.5

42.1

Date

Sept. 11. _ 

Gage 

height

Feet 

0.67

Discharge

Sec.-feet 

15.7

1 Surface floats timed and coefficient of 0.90 used to reduce to mean velocities.
144 SURFACE WATER SUPPLY, 1926, PART VIII

Daily discharge, in second-feet, of Medina River near Pipe Creek, Tex., for the year 

ending September SO, 1926

Day

1. ____ ....

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

3 ..........

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

5 .

6_. _. ....__

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

8.... ......

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

10 . 

11 . ..

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

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

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

15 . . .....

16..-.-.. ...

17..... ....

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

19 

20. 

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

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

23 .. .

24..... .....

25.... .

26 

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

28... .

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

30 . .

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

Oct.

14

12

19

14

12

12

12

11

9 2

9 0

11

14

82

1,840

578

290

166

117

81

62

54

44

40

40

in

38

35

35

33

33

Nov.

OK

OK

OK

OK

39

7on

479

166

102

79

77

74

72

72

69

62

60

KA

Kf\

44

4ft

qe

35

35

qe

qe

qe

33

33

31

Dec.

33

31

qq

qi

33

qi

97

27

97

29

29

OQ

97

29

29

31

9Q

q-i

9Q

29

27

29

27

24

24

24

24

27

27

29

31

Jan.

qe

qo

qo

40

40

qo

qe

qc

qq

qo

qe

33

qq

qq

QO

qq

qi

qi

qi

qi

qi

9Q

9Q

qi

31

qc

3*

qe

35

38

qo

Feb.

At)

00

00

qr

oc

qe

qq

33

qq

qq

qi

qq

qi

qi

31

31

31

9Q

29

97

27

97

94

24

94

24

94

94

Mar.

94

97

27

97

27

29

29

29

29

QO

70

47

44

42

42

42

Ert

K7

57

K7

57

60

60

60

60

64

69

69

67

157

95

Apr.

79

c1?

62

54

54

54

54

m

54

54

KO

52

50

en

.44

44

42

4.9

1 QQ

elQ

qqi

248

1Q4

161

ids

129

121

May

no

115

115

756

74Q

452

qi7

294

one

OQQ

onq

170

14Q

1Q7

204

1 P^

ino

106

102

98

Qq

QQ

Q4

81

77

74

104

June

iflo

102

111

104

84

77

74

«O

64

62

60

60

54

KO

rrt

47

291

Q4

62

234

145

72

60

52

CO

57

52

52

July

KO

50

77

K7

54

119

60

49

QQ

38

35

163

54

42

qe

35

33

qi

qi

29

268

1,640

qi A

197

102

84

77

81

Aug.

84

77

64

62

54

50

47

44

42

qo

82

67

47

40

in

40

38

38

qe

33

29

27

22

22

22

22

22

22

22

24

27

Sept27

94

99

20

20

2020'

18

1Q

16

16

16

16

16-

14

H

14

12

12

9.2

9.2 8.0-

6.8

6.8 8.0-

8.0

8.0

NOTE. Discharge partly estimated Oct. 13,15-17,29^31, Nov. 5-15, 22, Mar. 10,11, 30, Apr. 20-21, May 

4, 5, 17, June 5,19, 22.

Monthly discharge of Medina River near Pipe Creek, Tex., for the year ending

September SO, 1926

Month

December.. . ____________________

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

The year _________________ ____ ..

Discharge in second-feet

Maximum

1,840 

730 

33 

40 

40 

157 

6,010 

756- 

291 

1,640 

84 

27

6,010

Minimum

9.2 

31 

24 

29 

24 

24 

42 

74 

47 

29 

22. 

6.8

6.8

Mean

127 

90.5 

28.6 

34.1 

30.5 

54.0 

306 

197 

85.6 

131 

41.4 

14.6

95.3

Run-off in

acre-feet

7,820' 

5,390 

1,760 

2,090 

1,700 

3,320 

18,200 

12,100 

5,090 

8,080 

2,540 

871

69,000

MEDINA RIVER NEAR RIOMEDINA, TEX.

LOCATION. Just above Medina Valley Irrigation Co.'s diversion dam, a mile 

above Haby's crossing, 4 miles below company's main dam, and 6 miles 

northwest of Riomedina, Medina County.

DRAINAGE AREA. 606 square miles (measured on United States Army progressive 

military maps).

RECORDS AVAILABLE. January 21, 1922, to September 30, 1926.
GTJADALTJPE RIVER BASIN 145

GAGE. Gurley-graph water-stage recorder attached to right upstream side of 

diversion dam; attended by J. B. Milam.

DISCHARGE MEASUREMENTS. Made from cable 2,000 feet below gage or by 

wadifcg near Haby's crossing, 1 mile below gage.

CHANNEL AND CONTROL. Channel of rock and gravel; permanent. Banks of rock 

and earth, wooded, and not subject to overflow. Control is concrete spillway of dam; permanent. Point of zero flow over dam is 0.60 foot.

EXTREMES OF DISCHARGE. Maximum stage during year, from water-stage recorder, 5.17 feet at 5 a. m. April 21 (discharge, 11,800 second-feet), no flow 

for several periods.

1922-1926: Maximum stage, that of April 21, 1926; no flow over dam for 

sevetal periods.

ICE. None.

DIVERSIONS. Water is diverted to Medina Canal just above gage. About 5,000* 

acres irrigated in 1922. Maximum capacity of canal, 850 second-feet. See 

"Medina Canal near Riomedina."

REGULATION. Flow regulated by main storage dam, 4 miles upstream, exceptwheil main reservoir is full and water flows over spillway.

AcctfRACiT. Stage-discharge relation for flow over dam permanent. Rating 

curve well defined below 45 second-feet and extended above by means of weir 

formula, using low-water coefficients determined from current-meter measurements. Operation of water-stage recorder good. Daily discharge determined by applying to rating table mean daily gage height determined from 

recorder graph by inspection or by means of planimeter or, on days of considerable fluctuation in stage, by averaging discharge for intervals of a day. 

A seepage curve showing relation of height of water in reservoir to seepage 

. past the dam and based on discharge measurements made 1 mile downstream 

is fairly well defined for all stages. Mean monthly seepage determined by 

comparing mean monthly stage of reservoir with measurements made during 

year. Records fair.

COOPERATION. Medina Valley Irrigation Co. furnishes daily gage readings of 

lake level which are used to determine the monthly seepage.

Discharge measurements of Medina River near Riomedina, Tex., during the year 

ending September SO, 1926

Date

Oct. 14 _ ... _ ..............

Dec. 5 _, ... ....

Gage 

height

Feet -4.1

-2.7

Discharge 0

Sec.-ft. 

22.4

25.9

Date

Jan. 20._ .

Mar. 5--- -. 

Gage 

height

Feet -3.5

-3.8

Discharge °

See.-ft. 

20.3

22.7

a No flow over dam, and discharge represents seepage inflow between dam and measuring section.

Daily discharge, in second-feet, of Medina River near Riomedina, Tex., for the 

year ending September SO, 1926

Date

Apr. 21...............

Apr. 22-_ .............

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

Apr. 24.. ..............

Apr. 25 __. ...

Apr. 27....,. ....

Apr. 28-_ . 

Apr. 29.. ,..-.- ...

Apr. SO..-.,. _ ......

Mayl.. __ ...... 

May 2.. ..............

Discharge

1,270

167

123

108

77

62

50

An

56

50

26

26

Date

Mays................

May 11..- ... ... ...

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

May 13... _ .. __ ..

Discharge

26

26

131

56

45

30

20

Date

May 16.. . ...

May 17.. ....

May 18... . ...

May 19.. __ ...

May 20.- _

May 21 __ .

May 22.. . ..

May 23.. ....... ...

Discharge

26

23

20

23

17

20

20

20

15

1.6

NOTE. Discharge partly estimated May 8. No flow on days for which discharge is not shown. Braced 

figure shows estimated mean discharge for period indicated.
146 SURFACE WATER SUPPLY, 1926, PART VIII

Monthly discharge and seepage past station of Medina River near Riomedinat Tex.,

for the year ending September 80, 1926

Month

April. ________

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

August ________ .....

Discharge over dam

Maximum

Second-feet 

0 

0 

0 

0 

0 

0 

1,270 

131 

0 

0 

0 

0

1,270

Minimum

Second-feet 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

0

Mean

Secondfeet 

0 

0 

0 

0 

0 

0 

66.8 

21.7 

0 

0 

0 

0

7.33

Total

Acre-feet 

0 

0 

0 

0 

0 

0 

3,970 

1,330 

0 

0 

0 

0

5,300

Seepage past dam

Mean

Secondfeet 

22 

26 

27 

20 

20 

23 

25 

26 

25 

25 

25 

25

Total

Acre-feet 

1,350 

1,550 

1,660 

1,230 

1,110 

1,410 

1,490 

1,600 

1,490 

1,540 

1,540 

1,490

17,460

Total 

run-off

Acre-feet 

1,350 

1,550 

1,660 

1,230 

1,110 

1,410 

5,460 

2,930 

1,490 

1,540 

1,540 

1,490

22,760

MEDINA CANAL NEAR El0MEDINA, TEX.

LOCATION. Just above upper end of flume No. 1 on Medina Valley Irrigation 

Co.'s main canal, one-third mile below head of canal, and 6 miles north of 

Riomedina, Medina County.

RECORDS AVAILABLE. March 30, 1922, to September 30, 1926. Station maintained during irrigation seasons of 1920 and 1921 by United States Department of Agriculture in cooperation with Texas Board of Water Engineers for 

seepage studies.

.GAGE. Gurley graph water-stage recorder; attended by J. B. Milam.

DISCHARGE MEASUREMENTS. Made by wading or from foot plank just above 

gage.

CHANNEL AND CONTROL. Metal flume and concrete-lined canal; permanent.

EXTREMES OF DISCHARGE. Maximum stage during year, from water-stage recorder, 1.38 feet at 10.00 a. m. October 5 (discharge, 55 second-feet); no flow 

for several periods.

' 1922-1926: Maximum discharge, 128 second-feet June 26, 1923, and 

June 5 to 6, 1925; no flow for several periods.

DIVERSIONS. Above all diversions from canal.

REGULATION. Flow controlled by headgates. Canal ordinarily carries a small 

flow during nonirrigation season for domestic supply and stock water.

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

all stages. Operation of water-stage recorder satisfactory, except as noted 

in footnote to table of daily discharge. Daily discharge determined by applying to rating table mean daily gage height determined from recorder graph 

by inspection or by use of planimeter or, on days of considerable fluctuation 

in stage, by averaging discharge for intervals of a day, except as noted in 

footnote to table of daily discharge. Records fair.

Canal diverts from right bank of Medina River. Water used for irrigation in 

vicinity of Lacoste and Natalia.

Discharge measurements of Medina Canal near Riomedina, Tex., during the year 

ending September SO, 1926

Date

Oct. 14........................

Gage 

height

Feet 

0.60

.74

Discharge

Sec.-ft. 

14.7

20.0

Date

Mar. 5.. _________ . _ .

Gage

Feet 

0.69

.30

Discharge

Sec.-ft. 

17.1

6.52
GtTADALtrPE KIVEE BASIN 147

Daily discharge, in second-feet, of Medina Canal near Riomedina, Tex., for the year 

ending September SO, 1926

Day

1. ________ .4 __ .

2... ...... _^_._.

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

4. _ . __ ., __

5. 4 -

6 . 4 

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

0» -1- 

10 J. 

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

12.. ...... ..4.... is..........;....

14... __ . __

15 ______ 4 _ -

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

17. ____ . __

18 

19.... ___ .....

20 _....,....

21 _ . __ .1....

22... __ ..*,...

23 ...., .

24 ...... a 

25 .t_.._

26 ____ . ____

27... ...... .i....

28 .T .

29 ... I .

30... I .

31 .+....

 

Oct.

2.7

14

18

51

52

52

43

16

8.2

36

36

21

15

9.2

3.8

3.3

3.3

2.8

2.3

9 *>

2.0

2.0

14

9.6

20

18

20

9.5

3.8

Nov.

3.4

3.3

2 a

2.8

2.5

2.2

2.0

1

O

1.1

1.1

1.1

1.1

. 1.0

2.3

' 6.3

6.3

10

7 9

7.0

6.7

6.3

6.5

6.7

6.5

7.9

8.9

Dec.

16

20

20

19

20

16

10

10

10

11

7.4

6.7

13

18

17

6.0

2.0

2.0

2.0

2.2

2.2

Jan,

2.2

2

0

3.1

2.9

2.9

2 Q

3.8

3.6

3 A

3.3

3

0

3 1

9 Q

2.9

2.8

3.6

4.3

4.1

4.0

19

17

17

17

17

17

17

17

17

17

16

3 d

Feb.

3.1

3.1

3.1

*> Q

1.3

12

17

18

18

17

18

18

18

18

18

18

5.8

Mar.

34

30

24

10

6.5

7.0

19

91

11

6.5

8 A

8 7

6.5

5.7

17

16

16

16

6.0

1 i

Apr.

5.3

4.5

3.6

3.6

3.4

3.3

3.1

O Q

3

0

4.1

19

17

17

17

16

17

11

12

12

3 A

.6

May

16

29

A ^

3 A

3.1

7.0

6.1

6.7

6.5

7.5

7.9

6.5

6.1

6.1

15

23

OK

25

23

5.6

5.6

16

22

June

1

1

23

48

47

46

44

45

52

37

35

36

35

34

39

39

39

39

37

23

15

15

16

15

15

15

15

15

July

15

15

16

22

27

27

27

27

27

26

26

26

29

27

32

34

37

36

36

35

42

38

4.7

4.7

5.2

12

19

21

26

26

26

Aug.

27

26

26

27

27

26

26

26

27

28

27

27

27

27

26

25

26

26

32

32

32

33

33

34

32

27

27

27

27

28

26

Sept,

16

2fr

30

31

37

38

36

37

37

36

1±

17

39

34

32

32

32

32

32

32

33

32

32

32

31

30

NOTE. Discharge determined from readings of Medina Irrigation Co.'s staff gage May 15, 27-29, June 

18-19, July 81-10,24,30-31, Aug. 6-7,14,19-28, Sept. 10-11. Braced figure shows estimated mean daily discharge for peWod indicated. No flow on days for which discharge is not given.

i

Monthly discharge of Medina Canal near Riomedina, Tex., for the year ending

September SO, 1926

Month

October (30 klays) __________ __________

November (26 days) ___________________

March (20 dbys)..... ____ . _ . _ ....... _ ... _ ....

April (21 days). __ . ___ . _ . ___ ...... _ . __ ..

May (24 days) _______________________

July _ _

AllECUSt

Discharge in second-feet

Maximum

52 

10 

20 

17 

18 

34 

17 

29 

52 

42 

34 

39

Minimum

2.0 

1.0 

2.0 

2.2 

1.3 

3.1 

.6 

3.1 

15 

4.7 

25 

14

Mean

16.9 

4.40 

11.0 

7.96 

12.3 

13.7 

8.20 

11.7 

30.2 

24.9 

28.0 

31.1

Run-off in 

acre-feet

1,010 

227 

457 

490 

415 

544 

342 

559 

1,800 

1,530 

1,720 

1,600

10, 700

CIBOIO CREEK AT SUTHERLAND SPRINGS, TEX.

LOCATION. At Mghway bridge in Sutherland Springs, Wilson County, 5% miles

belo^v mouth of Elm Creek. 

DRAINAGE AREA. 665 square miles (measured on topographic maps, United

States Army progressive military maps, and base map of Texas). 

RECORDS AVAILABLE. June 22, 1924, to September 30, 1926.
148 SURFACE WATER SUPPLY, 1926, PART VIII

GAGE. Vertical staff on right bank at upstream side of bridge; read by J. S. 

Lane.

DISCHARGE MEASUREMENTS. Made from highway bridge or by wading.

CHANNEL AND CONTROL. Channel straight for 500 feet above and below gage. 

Bed of sandy clay; shifts. Banks steep, covered with heavy growth of brush 

and small timber, and fairly permanent. Left bank not subject to overflow; right bank subject to overflow at a stage of about 39 feet, at which 

gage can not be reached from the right bank. Control is rock shoal onefourth mile below gage; shifts.

EXTREMES OP DISCHARGE. Maximum stage recorded during year, 28.5 feet at 

7 a. m. April 21 (discharge, 23,800 second-feet; determined by slope method 

and subject to error); minimum stage, 2.10 feet at 5.40 p. m. October 24 

(discharge, 7.1 second-feet).

1924-1926: Maximum stage, that of April 21, 1926; minimum stage, that 

of October 24, 1925.

DIVERSIONS. None.

REGULATION. None.

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

below 1,600 second-feet and poorly defined from 1,600 to 24,000 second-feet. 

Gage read to hundredths twice daily and oftener during floods. Daily discharge determined by shifting-control method or, on days of considerable 

fluctuation in stage, by averaging discharge for intervals of a day, using gageheight graph based on daily gage readings. Records for low and intermediate stages fair; for high stages, poor.

Discharge measurements of Cibolo Creek at Sutherland Springs, Tex., during the 

year ending September SO, 1926

Date

Oct. 8. 

Dec. 8 ___ .

Qage 

height

Feet 

2.18

Discharge

Sec.-ft. 

8.97

Date

Apr. 16. ......

Apr. 21. ......

Qage 

height

Feet 

2.20

Discharge

Sec.-ft. 

17.6

-23, 800

Date

Apr. 23.. __ .

Apr. 28 __ ...

Qage 

height

Feet 

27.9

2.79

Discharge

Sec.-ft. 

"19,000

87.9

" Discharge determined by slope method.

Daily discharge, in second-feet, of Cibolo Creek at Sutherland Springs, Tex., for the 

year ending September SO, 1926

Day

I...... ___ ..

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

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

4 . _ ....

5 __ ... _ ....

6. _ . _ ...

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

8 ... .... .

9 _ ......

10 .. _ ......

11 

12 ______ . ....

13. ____ ......

14 . 

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

16 

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

18 

19. ........

20 

Oct.

11

10

11

10

10

9.6

9.6

9.2

8.8

8.4

8.8

9.6

10

9 0

18

642

27

14

10

Nov.

Ifi

11

10

10

40

149

32

18

14

13

12

11

11

10

10

11

11

10

Dec.

12

12

13

12

12

12

13

13

i^

13

14

14

14

14

14

14

14

Jan.

15

17

20

30

23

17

15

14

14

14

14

14

14

16

56

37

99

20

Feb.

17

17

17

17

16

17

16

17

17

16

16

15

16

16

15

16

16

16

16

16

Mar.

16

16

16

17

16

17

16

16

15

fin

72

24

18

17 v\i

370

45

Apr.

48

28

21

19

17

18

18

17

17

1,810

402

76

29

21

21

18

18

17

17

20

May

283

309

73

73

196

1,510

296

240

120

65

50

41

34

30

29

27

29

27

27

28

June

24

25

25

29

166

41

25

22

20

20

25

25

30

23

20

18

18

18

20

20

July

16

16

19

20

18

17

16

16

16

16

16

15

15

17

16

15

15

14

15

17

Aug.

14

14

13

13

14

14

14

13

14

14

14

14

14

14

16

18

18

17

16

17

Sept.

11

11

10

10

10

11

12

12

10

10

10

11

11

10

11

11

12

11

13

12
Daily discharge, in second-feet, of Cibolo Creek at Sutherland Springs, Tex., for the 

year ending September 30, 1926 Continued

NtJECES RIVER BASIN 149

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug.

21.

22.

23.

24.

25-

26-

27-

28.

29.

30.

31.

10

9.2

8.4 

7.7 

9.6

32

14

12

9.6

54

35

28

24

22

19

103

160

59

29

22

145

168

8,800

11,500

18,300

15,000

292

142

120

91

77

61

Monthli discharge of Cibolo Creek at Sutherland Springs, Tex., for the year ending 

September SO, 1926

Month

Discharge in second-feet

Maximum Minimum Mean

Run-off in 

acre-feet

October

Novembej

December

January..

February

March-..

April.....

May. 

June..-..

July.-...

August...

Septembei

642

149

14

56

17

370

18,300

1,510

166

20

18

13

7.7

10

12

14

15

15

17

25

18

14

11

10

37.7

21.4

13.3

19.0

16.1

71.5

1,870

122

32.1

16.4

13.9

11.0

2,320

1,270

819

1,170

897

4,400

112,000

7,500

1,910

1,010

857

657

The year. 18,300 7.7 186 135,000

NUECES RIVER BASIN 

NUECES BIVEE AT IAGUNA, TEX.

LOCATION. 1 mile northwest of Laguna, Uvalde County, 2.6 miles above LagunaUvalde road crossing, and 5 miles in an air line below mouth of Montell 

Cresek.

DRAINAGE AREA. 764 square miles (measured on topographic maps, base map 

of Texas, and United States Army progressive military maps).

RECORDS AVAILABLE. October 25, 1923, to September 30, 1926.

GAGE. Stevens water-stage recorder on right bank; attended by J. W. Bones or 

E. S. Altgelt.

DISCHARGE MEASUREMENTS. Made from cable or by wading.

CHANNEL AND CONTROL. Channel straight for 500 feet above and 2,400 feet 

belaw gage. Bed of rock, permanent. Right bank of rock, permanent, and 

nol subject to overflow; left bank of rock, gravel, and earth, covered with 

trees and brush, and subject to overflow for 1,000 feet at extremely high 

stages. Control is rock and gravel shoal 800 feet below gage; fairly permanerit. Prior to January 25, 1925, at extremely low stages, large part of flow 

probably went through gravel bar on left bank.

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

recorder, 14.88 feet at 2.45 p. m. July 23 (discharge, 27,000 second-feet); 

minimum stage, 1.87 feet from 9 p. m. July 15 to 2 a. m. July 16 (discharge, 

30 second-feet).

1924-1926: Maximum stage, that of July 23, 1926; minimum discharge, 

8.9 second-feet September 9-11, 1924.
150 SUEPACE WATEK SUPPLY, 1926, PART VIII

By levels to distinct drift line, the flood of September 21, 1923, reached a 

stage of 26.5 feet, referred to datum of gage used since January 25, 1925, 

(discharge, 74,500 second-feet, determined by slope method). The flood of 

1913 reached about the same stage. Floods in 1903 reached a slightly 

higher stage.

DIVERSIONS. None.

RE GUL ATION s. None.

ACCURACY. Stage-discharge relation not permanent. Two curves used during 

year one from October 1 to July 22, well defined below 1,300 second-feet, 

fairly well defined from 1,300 to 5,500 second-feet, and poorly defined above; 

the other from July 23 to September 30, well defined below 5,500 second-feet 

and poorly defined above. Operation of water-stage recorder satisfactory, 

except for short breaks in record. Daily discharge determined by applying 

to rating table mean daily gage height obtained from recorder graph by inspection or by planimeter or, on days of considerable fluctuation in stage,. 

by averaging discharge for intervals of a day, except as noted in footnote 

to the table of daily discharge. Shifting-control method used April 17 ta 

July 22. Records for low stages fair; for high stages, poor.

Discharge measurements of Nueces River at Laguna\ Tex., during the year ending

September SO, 1926

Date

Oct. 15 ..... ..

Oct. 16 ___ .

Oct. 17 __ ...

Nov. 19... _

Gage 

height

Feet 

2.04

7.72

3.90

2.36

2.12

Discharge

Sec.-ft.

55

5,450

1,220

159

80

Date

Apr. 29.......

Julyl.. .

July 2.. ......

July 23.. -

July 24.......

height

Feet 

2.15

1.93

1.93

1402

448

Discharge

Sec.-ft. 

74

30.5

37.4

< 24, 800

1,600

Date

Aug. 10.......

Aug. 25 .......

Sept. 3 __ .

Sept. 21......

Gage 

height

Feet 

2.49

2.34

2.27

2.20

Discharge

Sec.-ft. 

119

80

62

44.9-

« Surface velocities observed for part of measurement and coefficient used to reduce to mean velocities,

Daily discharge, in second-feet, of Nueces River at Laguna, Tex., for the year endingSeptember 30, 1926

Day

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

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

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

4 ___ .........

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

6, _ ...........

7. __ - __ .....

8. ___ -._..___

9-.....-__.__...

10... 

11... __ ........

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

13... _ 

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

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

16.-.-. ........

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

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

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

20 _ ........

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

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

23 ........ ..

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

25 ___ . ___ ....

26

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

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

29 ____ . _ ....

30 

31.. __ . _ ....

Oct.

75

72

70

67

65

63

63

60

60

58

58

58

63

63

320

2,050

1,260

595

398

300

252

216

191

171

171

171

156

145

137

130

130

Nov.

123

119

119

115

112

160

234

230

243

238

230

212

204

191

183

175

167

164

160

156

148

145

137

133

130

126

126

123

119

115

Dec.

112

112

108

112

112

108

108

98

95

95

95

95

95

92

92

92

89

89

86

84

84

84

84

84

78

78

78

81

78

75

72

Jan.

78

75

75

75

72

72

75

72

70

37

67

65

65

65

67

70

67

67

70

70

67

67

67

67

67,

67

67

67

67

67

67

Feb.

67

67

67

67

67

67

67

67

67

67

67

65

65

65

65

63

60

\ 67

Mar.

67

Apr.

' R*7

75

72

67

92

92

92

92

86

84

81

78

75

75

75

May

72

75

78

84

81

108

271

276

183

152

141

137

130

123

112

105

123

101

92

89

86

81

78

75

72

70

67

67

65

65

63

June

63

63

60

67

63

60

58

56

54

51

51

49

48

46

45

43

43

42

42

41

41

42

42

39

38

38

38

41

39

39

July

36

38

39

39

38

36

36

35

34

32

31

31

32

32

30

31

32

34

35

35

35

35

9,570

2,910

932

597

450

363

313

287

276

Aug.

252

233

210

197

184

171

163

151

147

139

143

155

147

135

124

120

113

106

102

99

95

92

89

92

86

82

82

79

72

72

69

Sept.

66-

64

62

62

64

62

55

54

54

52

52

49

46.

49

44

44

44

52

46

44

44

44

44

44

42

42

40

40

40

37

NOTE. Discharge partly estimated Apr. 17. 

indicated.

Braced figures show estimated mean discharge for periods
NUECES RIVEE BASIN 151

Monthly discharge of Nueces River at Laguna, Tex., for the year ending September

80, 1926

Month

July _ . .-. ... _.

September. _________________________

Discharge in second-feet

Maximum

2,050 

243 

112 

78 

67

92

276 

67 

9,570 

252 

66

9,570

Minimum

58 

112 

72 

65

63 

38 

30 

69 

37

30

Mean

248 

161 

81.8 

69.1 

66.3 

67.0 

73.6 

107 

48.1 

531 

129 

49.4

138

Run-off in 

acre-feet

15,200 

9,590 

5,640 

4,250 

3,680 

4,120 

4,380 

6,590 

2,860 

32,600 

7,940 

2,940

99,800

NUECES EIVER AT COTULLA, TEX.

LOCATION. 100 feet upstream from Farmer Dam, half a mile below InternationalGreat Northern Railroad bridge, 1.9 miles by road from post office at CotuDa, 

La i-Salle County, and 3 miles below mouth of Salt Creek.

DRAINAGE AREA. 5,260 square miles, large part of which is .noneoatributing at 

low stages owing to water entering a fault near Uvalde (measured on topographic maps, United States Army progressive military maps; and base 

map of Texas).

HECOEDIS AVAILABLE. October 31, 1923, to September 30, 1926.

GAGE. Vertical staff on left bank read by Kathleen Lind.

DISCHARGE MEASUREMENTS. Made from highway bridge 1 mile upstream or 

frori railroad bridge.

CHANNEL AND CONTROL. Bed of sand and silt, probably permanent. Channel 

straight for 1 mile above and below gage. Right bank of earth, covered 

with rushes and subject to overflow at stage of 3.5 feet. Left bank of earth, 

wooded, and subject to overflow at extremely high stages. Low water control is concrete and rock dam 100 feet below gage. No vegetation on control 

proper, but'much of the dam is only a few inches high, and just above the 

dam there is much aquatic growth, which may affect the stage-discharge 

relation. This control probably sabmerged at a stage of about 2 feet. At 

about 4-foot gage height another dam farther downstream probably serves 

as control, and this dam is probably submerged at a stage of 6 feet.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 6.5 feet at

5.00 a. m. April 23 (discharge, 9,820 second-feet); no flow for several periods.

1924-1926: Maximum stage recorded, 14.89 feet from 10 a. m. to 1 p. m.r

June 3, 1925 (discharge, 49,500 second-feet); no flow during several periods.

DIVERSIONS. Much of low-water flow is diverted by pumping from storage 

reservoirs above; amount not known.

REGULATION. Low-water flow regulated by storage reservoirs above.

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

defined below 11,000 second-feet. Gage read to hundredths twice daily. 

Daily discharge ascertained by applying mean daily gage height to rating 

tabe, except as noted in footnote to table of monthly discharge. Owing 

to leaks through dam (control), records for low stages are poor, and for high 

fair. Daily records not sufficiently accurate for publication.
152 SURFACE WATER SUPPLY, 1926, PART VIII

Discharge measurements of Nueces River at Cotulla, Tex., during the year ending

September SO, 1926

Date

Dec. 16... _____ . .........

Apr. 12. . 

Gage 

beigbt

Feet 

0.36

1.08

Discharge

Sec.-ft. -0.0

37.8

Date

July 26.-.... . _ .

Gage 

height

Feet 

-0.60

1.26

Discharge

Sec.-ft. 0.0

'109

 Below point of zero flow. >> Poor measurement.

Monthly discharge of Nueces River at Cotulla, Tex., for the year ending September

SO, 1926

Month

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

January. ________________________

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

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

September. _________________________

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

Discharge in second-feet

Maximum

456 32 

0 

11 

0 

6.0 

9,380 

1,620 

3,280 

1,700 

730 

0

9,380

Minimum

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

0

Mean

83.8 

14.4 

.0 

5.82 

.0 

1.13 

1,120 

353 

478 

194 

70.1 

.0

192

Run-off in 

acre-feet

5,150 

833 

0 

358 

0 

69.4 

66,400 

21,700 

28,400 

11,900 

4,310 

0

139,000

NOTE Discharge represents flow over the dam only. Leakage through dam estimated as follows: 

Oct. 1 to Dec. 6,1.5 second-feet; Mar. 20 to July 19, from 0 to 50 second-feet; Aug. 22 to Sept. 4,50 secondfeet. Discharge interpolated Apr. 11, 18-20, May 19-21, Aug. 5, 8-14.

NUECES RIVER NEAR THREE RIVERS, TEX.

LOCATION. At San Antonio, Uvalde & Gulf Railroad bridge 2 miles southeast

of Three Rivers, Live Oak County, and half a mile below mouth of Frio

River. 

DRAINAGE AREA. 15,600 square miles part of which is noncontributing at low

stages, owing to water entering faults near Uvalde (measured on topographic

maps, United States Army progressive military maps, and base map of

Texas).

RECORDS AVAILABLE. July 1, 1915, to September 30, 1926. 

GAGE. Inclined and vertical staff on left bank or attached to piers of railroad

bridge; read by Roy E. Kibbey, Adolph Orsak, or Ruby Franze. 

DISCHARGE MEASUREMENTS. Made by wading near gage, from highway bridge

half a mile below gage, or from railroad bridge at gage. 

CHANNEL AND CONTROL. Bed of adobe shale and sand; does not change greatly.

Channel straight above and below station. Banks wooded and not subject

to overflow except at extremely high stages. Position of high-water control

not known. Concrete low-water control 200 feet below gage; permanent. 

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 24.45 feet at

2 p. m. May 19 (discharge, 6,980 second-feet); no flow September 12-14

and 23-30.

1915-1926: Maximum stage recorded, 46.0 feet at 5 a. m. September

18, 1919 (discharge not determined, probably backwater due to Gulf storm);

no flow during several periods.
NUECES EIVER BASIN 153

DIVERSIONS. Records of the Board of Water Engineers for the State of Texas 

show that about 10,000 acres has been declared irrigated by diversions 

abov0 station.

REGULATION. None of importance.

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

below 18,000 second-feet. Gage read to tenths once daily. Daily discharge 

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

of considerable fluctuation in stage, by averaging discharge for intervals of a 

day, using gage-height graph based on daily gage readings. Records fair.

COOPERATION. Record of stage furnished by United States Weather Bureau.

Discharge measurements of Nueces River near Three Rivers, Tex., during the year

ending September 30, 1926

Date

Oct. 16.. 

Dec. 18.-. ...

Gage 

height

Feet 

5.46

2.00

Discharge

See.-ft. 

710

24.5

Date

Apr. 13 

Gage 

height

Feet 

5.90

5.26

Discharge

See.-ft. 

813

609

Date

July 8 . 

Gage 

height

Feet 

3.52

1.18

Discharge

See.-ft. 

271

« Discharge estimated.

Daily discharge, in second-feet, of Nueces River near Three Rivers, Tex., for the year 

ending September 30, 1926

Day

1 

2 ..... .

3 

4 

5 _ ......

6 ... 

7 . 

8 _ ......

9 _ ......

10 .

11 

12..... .

13 

14 

15 -.

16 

17 

18 ' 

19 

20_ 

21 

23 

24. 

25 

26 

27 

28 

29 

30 

31 _ ...

Oct.

2,380

3,520

2,560

1,810

1,660

1,690

1,630

1,300

331

248

141

195

282

248

214

497

299

204

176

133

85

37

25

20

16

16

12

9.0

7.0

7.0

7.0

Nov.

7.0

7.0

6.8

99

118

1,060

2,800

3,660

2,290

517

315

231

137

99

91

58

38

38

60

48

38

38

31

25

20

20

20

16

16

12

Dec.

12

9.0

9.0

7.0

7.0

7.0

5.0

5.0

3.0

3.0

3.0

1.0

1.0

.2

9.0

25

79

31

24

20

16

9.0

9.0

9.0

Q C\

9.0

a n

9.0

7.0

7 9

Jan.

14

54

696

718

322

176

176

195

176

137

117

75

60

37

34

306

307

231

135

83

40<>Q

38

38

38

n

31

01

31

OK

20

Feb.

38

31

31

25

20

20

20

16

16

12

12

12

12

9.0

9.0

9.0

9.0

9.0

7.0

7.0

7.0

7.0

7.0

7.0

7.0

7.0

7.0

7.0

Mar.

9.0

9.0

9.0

7.0

7.0

7.0

7.0

9.0

19

1,360

2,100

608

395

535

535

610

1,600

1,870

1,030

430

315

176

127

75

56

43

37

38

9KG

970

Apr.

478

186

117

95

75

58

40

127

91

152

950

490

760

970

1,120

1,360

1,030

430

347

248

204

176

195

346

710

1,390

2,650

5,240

4,870

1 ' 930

May

1,510

1,390

1,270

1,210

1,690

3,200

5,100

5,270

4,710

4,220

3,730

2,860

2,500

1,990

1,600

1,000

556

3,410

6,600

4,550

1,930

1,300

790

790

790

610

490

315

240

635

June

685

315

315

585

685

410

248

214

60

48

48

48

68

60

60

68

60

68

388

1,940

1,690

760

910

970

410

510

850

910

940

970

July

1,000

1,150

1,270

1,510

1,810

1,510

535

315

231

186

137

106

138

2,470

3,340

2,350

2,110

2,440

1,960

450

195

914.

379

331

248

75

54

CQ

694

970

850

Aug.

910

585

685

850

910

1,030

1,090

735

395

195

147

113

89

58

44

37

31

126

147

106

60

41

24

19

55

38

38

Q1

25

20

16

Sept.

12

9 n

7.0

5.0

3.2

13

21

20

8.4

4.4

1.0

.0

.0

.0

8 Q

81

12

7.7

68

12

5.0

9 ft

.0

.0

.0

.0

.0

.0

.0

.0

NOTE. Discharge partly estimated June 1-6 and 12-21.
154 SURFACE WATER SUPPLY, 1926, PART VIII

Monthly discharge of Nueces River near Three Rivers, Tex., for the year ending

September 80, 1926

Month

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

February. ... __ _

May... _____ ...

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

Discharge in second-feet

Maximum

3,520 

3,660 

79 

718 

38 

2,100 

5,240 

6,600 

1,940 

3,340 

1,090 

81

6,600

Minimum

7.0 

6.8 

.2 

14 

7.0 

7.0 

40 

240 

48 

54 

16 

0

0

Mean

637 

397 

11.8 

142 

13.6 

434 

894 

2,160 

510 

939 

279 

10.0

541

Run-off in 

acre-feet

39,200 

23,600 

725 

8,750 

754 

26,700 

53,200 

133,000 

30,300 

57,700 

17,200 

596

392, 000

Texas,

fault

, LOCATION. 

of Calallen, 

water dam,

.DRAINAGE ARE, 

map of 

large part 

entering

RECORDS AVAIL

30, 1926, 

; GAGE. Vertica

CHANNEL. Bee 

Left bank 

ject to

.EXTREMES OF 

May 12; m

1915-192^ 

feet,

stage reach 

any that o 

flow August

COOPERATION.

NUECES RIVER AT CAIAIIEN, TEX.

At old pump house for city of Corpus Christi, half a mile northwest 

Nueces County, half a mile above edge of tidewater and breakand 8 miles above Nueces Bay.

16,900 square miles (measured on topographic maps, base 

and United States Army progressive military maps). A 

of this area is noncontributing at low stages, owing to water 

near Uvalde. 

,E. Records of stage only from October 1, 1918, to September

and records of discharge August 2, 1915, to September 30, 1918. 

staff attached to pipe-line support of old pump house, 

of clay and gravel. Channel straight above and below station, 

wooded and bordered by levee; right bank wooded and not subover low

as determined from flood marks

sifAGE. Maximum stage recorded during year, 7.40 feet at 4 p. m. 

nimum stage, 0.35 foot at 4 p. m. September 29.

During September, 1919, river reached a stage of about 12 

on gage. This was not only the highest

id during the period covered by records, but probably exceeds 

:curred for many years prior to establishment of station. No 

23-28, 1918. 

Gage-height record furnished by city of Corpus Christi.

Daily gage height, in feet, of Nueces River at Calallen, Tex., for the year ending

September 30, 1926

Day

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

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

3 

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

6 

8 .. ....

9 

0 

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

12. 

13. - 

15 _ -. - __

Oct.

4.15

5.12

5.80

4.90

4.10

4.28

3.80

3.05

2.58

2.48

3.15

Nov.

1.38

1 40

1.38

1.32

1.28

2 72

4.75

5.38

5.48

3.20

2.62

2.48

2.30

Dec.

1.35

1 <%t\

1.28

1 1JJ

1.18

1.18

1.20

1.28

1.42

1 40

1 40

1 40

1.35

1.35

1.42

Jan.

1.85

1.85 9 nfl

3 no

3 OK

O 00

2

CA

2

OQ

9 ^9

2.15

1 QK

1 89

1.72

Feb.

1 KA

1.50

1 *.n

1 ^9

1.65

1.65

1 62

1.60

1.55

i in

1 4.9

1 Af\

1.38

i OK

1.3B

Mar.

1.10

98

on

QQ

.85

.88

.85

.88

.75

QK

1.10

3

10

4.58

3

70

3.00

Apr.

3.45

3.35

9 7JJ

9 ^5

9 Ifi

2 10

2.08

1.90

1 Q9

9 7^

9 Qfl

4.05

3.30

May

6.20

6.72

6.52

5 90

4 50

4 75

5.28

6.05

6.70

7 19

7 QS

7 °.n

6.30

June

2.80

3 1 %

2.52

2 22

9 in

9 39

9 *.n

2.55

9 in

1.85

1.70

1.68

1 K.8

1.50

July

3.68

3

7K

3.82

4 00

4 19

4.28

4.75

A KK

3.50

2.78

2.35

2 10

1.80

1 65

1.90

Aug.

3.02

9 Q&

2.38

9 in

2.92

2.98

3.08

3.12

3.02

2.30

1 90

1 79

1.62

Sept.

1.20

1.08

1.10

1.15

1 19

1.10

1.08

1.05

1.00

1.00

.98

1.00

on

09

.80
NUECES EIVEB BASIN 155

Daily gage height, in feet, of Nueces River at Calallen, Tex., for the year ending 

September 30, 1926 Continued

Day

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

17 _ 

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

19...... _ _ .

20 

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

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

23- _ ..........

34.... -

25 

26 

27 

28 

29 

.30 

.31 

Oct.

3.98

3.00

2.65

2.85

2.35

2.05

1.88

1.75

1.68

1.62

1.98

1.65

1.48

1.40

1.40

1.48

Nov.

2.15

1.95

1.82

1.72

1.62

1.60

1.55

1.55

1.48

1.45

1.40

1.40

1.38

1.32

1.38

Dec.

1.40

1.48

1.48

1.60

1.62

1.90

1.88

1.80

1.78

1.75

1.75

1.75

1.75

1.82

1.85

1.85

Jan.

1.65

1.70

1.88

1.92

1.95

1.98

1.88

1.85

1.75

1.68

1.60

1.55

1.55

1.52

1.50

1.50

Feb.

1.35

1 Afl

1.40

1.35

1.35

1.32

1.32

1.28

1.25

1.22

1.18

1.12

1.15

Mar.

2.62

2.95

3.20

4.52

4.72

3.78

3.10

2.82

2.68

2.50

2.35

2.12

1.98

1.88

1.80

1.78

Apr.

3.58

3.80

4.10

3.85

3.28

2.92

2.75

9 Kfi

9 AA

2.35

2.62

3.20

4.05

4.65

5.58

May

5.48

4.58

3.50

3.15

d Q9

6.00

6.82

6.70

3.92

2.98

2.62

2.40

2.55

9 on

3.08

3.18

June

1.52

1.45

1.38

1.45

1.55

1.48

1.38

3.95

3.05

2.25

3.02

3.10

3.10

S

CO

3.60

July

4.30

4.92

5.20

4.70

4.68

4.42

2.68

2.10

1.88

2.15

2.15

1.82

1.58

1.48

1.38

2.12

Aug.

1.52

1.45

1.42

1.40

1.36

1.62

1.68

1.50

1.38

1.28

1.20

1.18

1.02

1.18

1.35

1.25

Sept.

0.78

.70

.70

.70

.65

.82

.98

1.02

.98

.88

.85

.72

.56

.40

.50

NOTE. Datum of gage lowered 0.15 foot in later part of 1925; date not known. 

FRIO RIVER AT COKCAK, TEX.

.LOCATION. Half a mile below Concan post office, Uvalde County, 0.8 mile 

below "Shut In," and 3 miles below mouth of Blanket Creek.

DRAINAGE AKBA. 485 square miles (measured on United States Army progressive military maps and base map of Texas).

HECORDS AVAILABLE. October 26, 1923, to September 30, 1926.

 GAGE. Inclined and vertical staff on right bank. Above 6.6 feet an overhanging

chain gage on left bank is used; read by C. T. McNair. 

DISCHARGE MEASUREMENTS. Made from cable 123 feet upstream from gage or

by wading.

 CHANNEL AND CONTROL. Bed of solid rock overlain on right side by small 

amount of gravel; permanent. Channel straight for a quarter of a mile 

above and half a mile below station. Left bank of semiconglomerate, fairly 

permanent, and not subject to overflow. Right bank of sand and gravel, 

heavily wooded, permanent, and subject to overflow at a stage of 21 feet. 

Control is solid rock ledge 50 feet below gage; subject to slight shifts.

EXTREMES OP DISCHARGE. Maximum stage during year, from graph drawn 

from gage readings, 14.50 feet at 9 p. m. July 23 (discharge, 30,400 secondfeet); minimum discharge, 27 second-feet October 13.

1924-1926: Maximum stage, that of July 13, 1926; minimum discharge, 12 

second-feet from July 29 to August 2, 1925.

DIVERSBO^NS. None.

HEGULATION. None.

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

one from October 1 to July 24 fairly well defined below 200 second-feet and 

poorly defined above; another for the rest of the year, which is fairly well 

defined from 0 to 100 second-feet and extended to cover the range for the 

period. Gage read to hundredths twice daily. Daily discharge determined 

October 1 to July 24 by shifting-control method or, on days of considerable 

fluctuation in stage, by averaging discharge for intervals of a day, using 

gage^height graph based on daily gage readings; July 25 to September 30, 

by applying mean daily gage height to rating table. Records for low stages 

fair; for high stages poor.

96272 30 11
156 SURFACE WATER SUPPLY, 1926, PART VIII

Discharge measurements of Frio River at Concan, Tex., during the year ending

September 30, 1926

Date Gage 

height

Feet 

1.58

1.69

Discharge

Sec.-ft. 

26.9

48.4

Date

July 24. .......

Gage 

height

Feet

3 98

Discharge

Sec.-ft.

AQ q

1,390

Date Gage 

height

Feet 

1.86

Discharge

Sec.-ft. 

10S

Daily discharge, in second-feet, of Frio River at Concan, Tex., for the year ending

September 30, 1926

Day

3 ___ -- 

4 ------------

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

7 ....... ...

8 ..... .....

9. ...... .

10 

11 -

12 

13 .

14 

15 

16 

17 -

18 

19 

20 

21 

23 

24 

25 - 

26 

27 

28 

29 - 

w

31 

Oct.

36

36

36

36

36

36

36

36

33

33

33

30

27

30

446

496

70

50

59

57

55

54

52

52

52

57

57

57

57

54

54

Nov.

52

57

57

54

54

62

60

57

57

57

57

55

54

54

54

54

54

54

54

54

52

52

52

52

52

KO

50

Kf)

Dec.

50

50

50

50

50

47

45

45

AK

45

AX

44

47

48

48

48

48

48

48

48

47

47

47

47

47

47

48

48

47

47

Jan.

47

47

48

48

48

47

47

57

47

47

47

47

47

45

44

44

44

44

44

45

4K

45

AK

45

Feb.

44

44

44

44

44

44

11

11

11

44

44

44

44

44

44

44

44

42

Af)

42

42

42

42

Mar.

42

42

49

At)

42

42

An

44

11

11

44

45

AQ

47

45

45

44

48

AQ

48

AQ

48

57

57

Apr.

57

57

57

57

57

57

57

57

57

K7

57

57

K7

57

VI

57

57

57

57

59

e7

K7

57

54

54

KO

52

CA

May

50

50

50

48

48

48

48

48

48

48

4ft

48

48

AQ

48

47

47

47

47

47

47

47

45

45

4.K

44

42

42

At)

June

40

40

40

40

40

40

40

40

40

40

38

37

36

35

33

33

32

32

40

38

35

SO

32

32

09

32

31

30

28

28

July

28

28

28

28

28

28

28

28

28

28

28

28

47

64

47

40

37

36

32

32

30

8,290

2,730

610

V>"1

299

226

OQK

Aug.

171

171

144

130

120

103

103

103

103

103

103

94

87

87

74

74

71

68

63

63

63

63

63

63

61

58

58

58

58

58

58

Sept.

5»

£8

56

55

55

55

55

55

55

53

S3.

51

51

51

51

51

51

51

51

50

4S

4&

4&

4&

44

63

63

63

63.

63.

Monthly discharge of Frio River at Concan, Tex., for the year ending September 30

Month

October ___________________________

November.. _________ _ ______ . . ___

January...-. ...... . __ . ______ _ . ..........

March. __ .. ___ ... __ _____ .. .........

May __ . -... _ . ____________________

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

August _________ ----. -- ___ _ _ _ ...

Theyear _____ _____ . ___ ._ .......

Discharge in second-feet

Maximum

496 

62

50 

48 

44 

57 

59 

50 

40 

8,290 

171 

C3

8,290

Minimum

27 

50 

44 

44 

42 

41 

50 

41 

28 

28 

58 

44

27

Mean

72.7 

54.4 

., 47.3 45.7- 

43*4 

45.1 

56.2 

46.5 

35.6 

487 

87.0 

53.8

90.4

Run-off in

acre-feet

4,47» 

3,2*0 

2, MO 

2,810 

2,410 

2,770 

3,340 

2,860 

2,120 

30,000 

5,350 

3,200

65,500
NDECES KIVER BASIN 157

FBIO EIVEE NEAR FEIO TOWN, TEX.

LOCATION. 300 feet below Frio ford on old Frio Town-Sabinal road, 1J/2 miles below 

mouth of Sabinal Creek, and 7 miles northwest of Frio Town, Frio County.

DRAINAGE AREA. 1,460 square miles (measured on topographic maps, base map 

of Texas, and United States Army progressive military map). A large part 

of this area is noncontributing at low stages owing to water entering fault 

near Uvalde. ....

RECORDS AVAILABLE. April 9, 1924, to September 30, 1926.

GAGE. Combined vertical staff and chain gage on left bank; read by J. L. Tiner.

DISCHARGE MEASUREMENTS. Made from cable 340 feet below staff gage or by 

wading.

CHANNEL AND CONTROL. Bed of gravel; fairly permanent. One channel at all 

stages. Channel straight for half a mile above and below gage. Banks 

permanent and not subject to overflow; right bank wooded. Low-water 

control is gravel riffle 150 feet below staff gage; will probably shift during 

floods and is overgrown by weeds and grass during dry season. High-stage 

control is narrow section in river 500 feet downstream from low-water control. Stage of change of control not known.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, from levels to 

flood marks, 30.5 feet at 6 a. m. April 20 (discharge, 30,200 second-feet; 

determined by slope method and subject to considerable error); no flow for 

several periods.

1924-1926: Maximum stage, that of April 20, 1926; no flow for several 

periods.

DIVERSIONS. None.

REGULATION. None.

ACCURACY. Stage-discharge relation not permanent. Rating curve poorly 

defined for all stages. Gage read to hundredths once daily and oftener during 

floods. Daily discharge determined by applying mean daily gage height to 

rating table or, on days of considerable fluctuation in stage, by averaging 

discharge for intervals of a day, using gage-height graph based on daily 

gage readings. Daily discharge not sufficiently accurate for publication; 

monthly records poor.

The following discharge measurements were made: 

April 11: Gage height, 1.40 feet; discharge, 27.2 second-feet. 

April 20: Gage height, 30.50 feet; discharge, 30,200 second-feet (determined 

by slope method).

April 23: Gage height, 1.57 feet; discharge, 485 second-feet.

Monthly discharge of Frio River near Frio Town, Tex., for the year ending

September SO, 1926

Month

March........!- . __ 

April.. 

May ' 

. __ . __ ...... __ ............ __ .. __ .

July.- August _____ _ _______ : ....................

September.. _____________________ ___

Discharge in second-feet

Maximum

331 

0 

0 

0 

0 

0 

19,800 

0 

0 

4,910 

0 

0

19,800

Minimum .

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

0

Mean

28.6 

0 

0 

0 

0 

0 

1,140 

0 

0 

230 

0 

0

116

Run-off in 

acre-feet

1,760 

0 

0 

0 

0 

0

es,ioo

0 

0 

14,100 

0 

0

84,000
158 S1FBFACE WATER SUPPLY, 1926, PART VHI

FKIO EIVEE NEAR DERBY, TEX.

LOCATION. At International-Great Northern Railroad bridge 900 feet below 

mouth of Leona River, 400 feet below highway bridge, and 4 miles south of 

Derby, Frio County.

DRAINAGE ABBA. 3,490 square miles (measured on .'topographic maps,, United 

States Army progressive military maps, and base map of Texas). A large 

part of this area is noncontributing at low stages, owing to water disappearing 

into fault near Uvalde.

RECORDS AVAILABLE. August 1, 1915, to September 30, 1926.

GAGE. Vertical staff attached to railroad bridge pier; read by John W. Speed or 

J. R. Nicholson.

DISCHARGE MEASUREMENTS. Made from railroad bridge, from highway bridge, 

or by wading.

CHANNEL AND CONTROL. Bed of rock, sand, and gravel. Channel curved above 

and below station but straight at gage for 150 feet. Banks wooded and 

subject to overflow at extremely high stages. Concrete dam 50 feet below 

gage serves as control during low and medium stages; position of high-water 

control not known. Point of zero flow, gage height 0.07 foot, except when 

affected by moss on control.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 14.12 feet at 

8 a. m. April 23 (discharge, 18,300 second-feet); no flow for several periods. 

1915-1926: Maximum stage recorded, 18.5 feet September 18, 1919 (discharge, 34,400 second-feet; determined from extension of rating curve and 

may be subject to error); no flow during several periods of each year.

DIVERSIONS. Small areas are irrigated by diversions in headwaters, but available information does not show that water is taken from stream immediately 

above station.

REGULATION. None.

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

all stages. Gage read to hundredths twice daily and oftener during floods. 

Daily discharge determined by applying mean daily gage height to rating 

table or, on days of considerable fluctuation in stage, by averaging discharge 

for intervals of a day, using gage-height graph based on daily gage readings. 

Records good.

Discharge measurements of Frio River near Derby, Tex., during the year ending

September SO,

Date

Oct. 10. ......

Apr. 12 _ ....

Gage 

height

Feet

0.17

5.47

Discharge

Sec.-ft.

 0.05

1,780

Date

Apr. 22 _ ....

ATO* 99 '

July 9-. ___

Gage height

Feet 

11.31

 to OK

.26

Discharge

Sec.-ft. 

10,400

17,500

'6.53

Date Gage 

height

Feet 

0.16

Discharge

Sec.-ft. «U>

1 Estimated. »Determined by floats.
NTJECES EIVEE BASIN 159

Daily discharge, in second-feet, of Frio River near Derby, Tex., for the year ending

September SO, 1926

Day

1........ _____ ..............

,2................................

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

4..... _ _.._____ -__ ____ .

5...... __ ......................

.«__.._ __ . _ ..... _ ... _ ....

7..... ________ .... ___ ...

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

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

ao................................

11..... __ ... . ,__.___ . .. .....

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

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

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

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

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

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

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

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

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

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

22. _ . __ . ____ -..-....-.. ...

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

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

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

26....... __ ... _ .. __ .......

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

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

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

in

31

Oct.

64

22

6.1

2.5

1.1

.1

.1

Feb.

9 1

Mar.

2.1

2.1

2.1

2.1

2.1

2.1

2.1

2.1

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

2.1

2.1

2.1

1.4

1.4

1.4

1.4

Apr.

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

4.1

376

1,290

337

104

34

14

6.1

2.5

1.7

1.4

836

7,040

5,250

966

226

69

43

26

23

May

23

67

138

412

245

W

619

255

175

70

33

23

13

9.2

6.1

4.1

4.1

4.1

4.7

4.1

3.5

3.0

3.0

2.5

2.1

1.4

1.4

1.4

1.4

1.4

1.4

June

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

.8

.8

.8

.8

.5

.5

.5

100

671

426

125

114

35

20

16

114

38

July

11

5.4

3.0

3.0

3.0

2.5

2 1

9.2

5.4

4.1

10

14

6.1

3.5

2.1

1.7

1.4

1.1

.8

.8

.5

.5

.3

.1

2,390

2,300

355

133

48

24

13

Aug.

6.1

3.5 2.5

1.4

.8

.8

.8

.8

.8

.8

17

108

84

157

48

25

7.6

3.5

2.1

1.7

1.4

.8

.4

.3

.3

.3

NOTE. No flow on days for which discharge is not shown.

Monthly discharge of Frio River near Derby, Tex., for the year ending September

SO, 1926

Month

March. ______ . ____________________

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

June ____________ _______________

July............ . ._.__....__..-.-....._...._. ....

Discharge in second-feet

Maximum

64 

2.1 

2.1 

15,400 

899 

671 

2,390 

157

15,400

Minimum

0 

0

1.4 

1.4 

1.4 

.5 

.1 

0

0

Mean

3.09 

.07 

1.65 

1,070 

97.8 

56 

173 

15.3

117

Run-off in 

acre-feet

190 

4.2 

101 

63,600 

6,010 

3,330 

10,600 

W

84,800

FRIO RIVER AT CAIIIHAM, TEX.

LOCATION. Half a mile below mouth of San Miguel Creek, 1 mile north of 

i. ' Calliham, McMullen County, and 12 miles west of Three Rivers. 

iDRAiNAGjE ABBA. 5,450 square miles (measured on topographic maps, United

States Army progressive military maps, and base map of Texas). A large

part of this drainage area is noncontributing at low stages owing to water

disappearing in fault near Uvalde. 

RECORDS AVAILABLE. October 1, 1924, to April 30, 1926, when station was discontintied.
160 SURFACE WATER SUPPLY, 1926, PART VIII

GAGE. Vertical staff attached to trees on right bank; read by J. D. Scroggins.

DISCHARGE MEASUREMENTS. Made by wading or from cable just above gage.

CHANNEL AND CONTROL. Channel straight for 700 feet above and 800 feet below 

gage. Bed of sandy clay; shifts. Right bank sodded and not subject to 

overflow; left bank sodded and at high stages is subject to overflow for 400 

feet; both banks wooded. Control is concrete dip 100 feet below gage. 

There are five pipes under slab to carry the low flow. Pipes clog and affect 

s^age-discharge relation.

EXTREMES OP DISCHARGE. Maximum stage recorded during period, 23.4 feet at 

2.20 p. m. April 28 (discharge, 7,320 second-feet); no flow during several 

periods.

1925-1926: Maximum stage, that of April 28, 1926; no flow during several 

periods.

DIVERSIONS. Some water diverted above; amount not known.

REGULATION. None.

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

for all stages. Gage read to hundredths twice .daily, but accuracy of readings doubtful. Daily discharge determined by shifting-control method or, 

on days of considerable fluctuation in stage, by averaging discharge for 

. intervals of a day, using gage-height graph based on daily gage readings. 

Daily discharge not sufficiently accurate for publication. Monthly records 

fair.

Discharge measurements of Frio River at Calliham, Tex., during the year ending

September SO, 1926

Date

Oct. 16 

Dec. 17 

Apr. 13 

Apr. 24 ...

Apr. 25 

Do. 

Do. 

Gage 

height

Feet 

3.00

2.62

4.49

4.56

5.08

5.55

5.67

Discharge

Sec.-ft. 

21.7

4.33

418

371

619

808

854

Date

Apr. 26. 

Do 

Do 

DoDo 

Apr. 27 

Do 

Gage 

height

Feet 

7.78

8.23

8.78

9 24

9 75

15.77

Discharge

Sec.-ft. 

1,370

1,500

1,680

1,880

4,070

4,810

Date

Apr. 27 

Do 

Apr. 28 

Do.. 

Do 

Gage 

height

Feet 

19 65

20.27

23.21

90 on

16.78

13.99

Discharge

Sec.-ft. 

5,590

6,040

7,240

"6,720

"3,840

»3,080

" Stage-discharge relation affected by backwater.

Monthly discharge of Frio River at Calliham, Tex., for the year ending September

SO, 1926

Month

October ________________ _ ________

April . . .. -

Discharge in second-feet

Maximum

513 

3,380 

4.2 

602 

4.0 

1,320 

6,980

Minimum

0 

0 

0 

2.4 

1.2 

.9 

13

Mean

36.1 

284 

1.99 

52.4 

2.10 

269 

849

Run-off in 

acre-feet

2,220 

16,900 

122 

3,220 

117 

16,600 

50,500

89,700
NUBCBS RIVER BASIN 161

IEONA RIVER NEAR DIVOT, TEX.

LOCATION. At highway bridge on Divot-Pearsall road, 2% miles northeast of 

Divot, Frio County, and 12 miles above mouth of river.

DRAINAGE ABEA. 565 square miles (measured on topographic maps, base map 

of Texas, and United States Army progressive military maps).

RECORDS AVAILABLE. April 6, 1924, to September 30, 1926.

GAGE. Vertical staff attached to pecan trees on left bank 6 feet below bridge; 

read by E. N. Gory.

DISCHARGE MEASUREMENTS. Made from highway bridge or by wading.

CHANNEL AND CONTROL. Bed of earth and sand; fairly permanent. Channel 

straight for 600 feet above and 65 feet below gage. Banks of earth, wooded, 

and fairly permanent. Right bank subject to overflow at a stage of 12 

feet; left bank subject to overflow at extremely high stages. One channel 

below stage of 9.7 feet, two at 12.2 feet, three at 13.1 feet, and four at 13.8 

feet. Low-water control is 100 feet below gage and is composed of gravel and 

a partly buried log; clean of vegetation; will probably shift. Collection of 

logs and debris may easily change stage-discharge relation. High-water 

control indefinite.

EXTREMES OP DISCHARGE. Maximum stage recorded during year, 14.9 feet at 

3.30 p. m. April 23 (discharge, 4,810 second-feet); no flow for several periods. 

1924-1926: Maximum stage, that of April 23, 1926; no flow for several 

periods.

DIVERSIONS. Several small diversions in drainage basin above station; amount 

not known.

REGULATION. Low-water flow regulated by dams above.

ACCURACY. Stage-discharge relation not permanent. Rating curve fairly well 

defined below 250 second-feet and extended by means of area-velocity 

curves and one slope measurement made at a.stage of 13.6 feet; extension 

may be subject to considerable error. Gage read to hundredths twice daily 

and oftener during floods. Daily discharge determined by applying mean 

daily gage height to rating table or, on days of considerable fluctuation in 

stage, by averaging discharge for intervals of a day, using gage-height graph 

based on daily gage readings. Daily discharge not sufficiently accurate for 

publication. Monthly records fair.

Discharge measurements of Leona River near Divot, Tex., during the year ending

September SO, 1926

Date

Dec. 16 __ T _ Apr. 11.......

Gage 

height

Feet

4.84

Discharge

Sec.-ft. 

0

178

Date

June 21 __ ..

Oage 

height

Feet 

13.60

2.28

Discharge

Sec.-ft. 

"2,350

49.6

Date

July 10,....-

Oage 

height

Feet 

0.78

Discharge

Sec.-ft. 61.2

1 Determined by slope method, using Kutter's formula. * Estimated
162 SURFACE WATER SUPPLY, 1926, PART VIII

Monthly discharge of Leona River near Divot, Tex., for the year ending September

30, 1926

Month

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

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

August __ . _____________________

The year ______ _ ______ _____ __

Discharge in second-feet

Maximum

3,130 

543 

1,340 

6.2 

225

3,130

Minimum

0.0 

2.0 

.0 

.0 

.0

.0

Mean

187 

37.9 

88.5 

1.17 

22.5

27.9

Run-off in 

acre-feet

11,100 

2,330 

5,270 

71. ft 

1,380

-20,200

NOTE. No flow during months for which no record is shown.

ATASCOSA RIVER AT WHITSETT, TEX.

LOCATION. At highway bridge on Crowther road 0.9 mile west of Whitsett,. 

Live Oak County, and 4 miles below mouth of La Parita Creek.

DEAINAGE AEEA. 1,170 square miles (measured on United States Army progressive military maps and base map of Texas).

RECOEDS AVAILABLE. September 23, 1924, to May 8, 1926, when station was 

discontinued.

GAGE. Chain gage attached to upstream side of highway bridge.

DI'SCHAEGE MEASUEEMENTS. Made from highway bridge or by wading.

CHANNEL AND CONTEOL. Channel straight for 300 feet above and 200 feet below 

gage. Bed composed of sand and some snags; shifts. Banks of sand and! 

clay, covered with trees and brush, and subject to overflow and shift. Control is bed and banks of stream; shifts.

EXTEEMES OF DiscHAEGE. Maximum stage recorded during period, 10.2 feet at 

noon April 11 (discharge, 1,200 second-feet); no flow for several periods.

1925-1926: Maximum stage recorded, 17.3 feet at 4.50 p. m. July 12, 

1925 (discharge not determined); no flow for several periods,

DIVERSIONS. None.

REGULATION. None.

ACCTTEACY. Stage-discharge relation not permanent. Rating curve poorly defined below 110 second-feet and extended through one measurement at a 

stage of 7.03 feet; extension may be subject to considerable error. Gage 

read to hundredths but not regularly. Owing to poor gage-height record,, 

badly shifting control, poorly defined rating curve, and infrequent measurements, data insufficient for publication of daily discharge, or monthly maximum or minimum. Monthly records poor.

The following discharge measurements were made: 

October 15, 1925: Gage height, 1.22 feet; discharge, 11.6 second-feet. 

December 18, 1925: Gage height, 1.22 feet; discharge, 18.0 second-feet. 

April 14, 1926: Gage height, 1.43 feet; discharge, 39.8 second-feet.

Monthly discharge of Atascosa River at Whitsett, Tex., for the year ending 

September 80, 1926

Month

Mean 

discharge 

in secondfeet

49.2

10.2

so «,

5 01

Run-off 

in acrefeet

3,020

3,720

629

2,430

ooo

Month

April-... _ 

May 1-8...-.--- - -

Mean 

discharge 

in secondfeet

104

72.0

189

Run-off 

in acrefeet

6,420

4,290

3,000

23,800
SURFACE WATER SUPPLY, 1926, PART VIII 163

RIO QRANDE BASIN

RIO GRANDE AT SAN MAECIAI, N. MEX.

LOCATION. In sec. 17, T. 7 N., R. 1 W., at highway bridge half a mile north 

of San Marcial, Socorro County. No tributary between station and 

Elephant Butte Reservoir, the high-water line of which comes within 3 

miles of station.

DRAINAGE ABE A. 23,900 square miles of contributing area (measured on base 

maps of Colorado and New Mexico).

HECOBDS AVAILABLE. January 1, 1922, to September 30, 1926. From January 

29, 1895, to December 31, 1921, a station was maintained \% miles downstream.

 GAGE. Water-stage recorder referred to vertical staff gage on highway bridge;

inspected by Bureau of Reclamation employee. Datum lowered 1 fopt

December 29, 1923. 

.DISCHARGE MEASUBEMENTS. Made from highway bridge.

 CHANNEL AND CONTBOL. Bed sandy and shifting; broken by several bridge

piers. No well-defined control. 

.EXTREMES OP DISCHABGE. Maximum mean daily stage during year, 4.5 feet

May 29 (discharge, 10,900 second-feet); no flow the greater part of August

and September.

1895-1926: Maximum mean daily discharge, 33,000 second-feet October

11, 1904; no flow for periods of varying length each year. 

DIVEBSIONS. Water diverted from Rio Grande and tributaries above station

for irrigation of 600,000 acres. 

AcctiBACT. Stage-discharge relation not permanent; not affected by ice.

Owjng to shifting control, determinations of daily discharge are based

almost entirely on frequent current-meter measurements.

 COOPEBATION. Daily-discharge records furnished by United States Bureau of 

Reclamation.

Daily discharge, in second-feet, of Rio Grande at San Marcial, N. Mex. } for the 

years ending September SO, 1922-^1926

Day

1922 

1.. .... .

2. .........

S. ............

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

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

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

7 .. ........

8.... ___ ....

9 . .........

10. _ ......

11 ..........

12.... _ ... _

13 

14 . .....

15 ..........

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

17 ..........

18 ..........

19 ..........

 20 

21. ... ......

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

23. ........

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

25 

Oct. Nov. Dec. Jan.

1,410

1,550

1,400

1,200

1,060

1,050

1,030

1,020

913

809

784

836

780

828

816

815

793

780

773

763

749

850

851

880

880

Feb.

1,020

985

980

976

972

835

891

953

1,100

1,250

538

526

504

491

513

1,350

457

457

488

561

1,490

774

1,230

455

1.250

Mar.

1,200

1,200

1,240

1,160

349

565

1,370

575

557

1,260

741

1,930

1,110

2

50

0

301

281

103

58

17

166

829

1,030

1.480

Apr.

1,400

1,150

1,010

1,300

1,300

1,250

1,380

1,780

1,580

1,340

1,440

1,320

1,200

965

870

1,480

1,090

1,080

1,140

1,230

910

775

640

775

1.400

May

2,220

3,290

3,570

4,230

4,630

5,610

4,440

4,540

4,590

7,730

10,400

8,940

5,650

5,640

4,040

2,730.

2,640

2,630

2,750

4,310

4,530

4,290

4,430

5,710

5.990

June

9,060

9,340

9,400

9,480

8,680

7,820

5,500

4,880

4,750

4,780

4,690

5,100

5,200

5,310

5,330

5,120

4,950

4,620

4,460

4,250

4,100

4,620

3,700

2,850

2.820

July

2,640

1,020

2,700

1,100

2,740

1,170

2,560

0

927

882

1,050

1,060

951

814

957

1,010

1,220

976

1,100

0

143

0

0

0

0

Aug.

0

0

0

0

0

0

0

0

0

0

ff

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Sept.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

- 0

0

0
164 SUEFACE WATER SUPPLY, 1926, PAET VIII

Daily discharge, in second-feet, of Rio Grande at San Martial, N. Mex., for the 

years ending September SO, 1922-1926 Continued

Day

1922

27..- -.. .

28... 1.........

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

30 . 

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

1922-23 

1...... __ ...

2

3... ...

4 ... .. .

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

6. . . ...

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

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

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

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

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

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

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

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

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

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

17. ... .

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

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

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

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

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

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

24....... ..

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

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

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

28..... . .

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

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

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

1923-24 

1

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

3

4........; .

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

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.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

1,620

1,620

1,780

1,800

1,800

1,600

1,390

1,390

2,610

2,620

2,520

2,560

2,180

1,720

1,870

1,870

2,000

1,020

1,020

1,020

1,020

1,500

1,500

1,490

1,490

1,430

1,430

1,230

1,230

992

992

Nov.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

909

909

1,130

1,130

1,130

1,660

1,800

3,110

1,730

2,600

1,770

3,220

1,750

1 830

3,110

3,100

1,720

1,740

1,720

1,710

1,710

1,640

1,500

1,780

860

860

950

900

Dec.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

677

621

0

647

740

792

0

707

0

812

0

105

900

1,500

1,500

1,470

1,700

1,080

1,080

1,860

1,660

804

804

996

1,850

1,780

1,660

223

247

271

250

d^7

402

499

390

461

515

1,070

1,070

1,940

912

Jan.

800

QCft

1,010

1,050

1,070

985

330

110

inn

120

100

1 en

130

450

AKfi

450

A Cft

Qpft

960

QCft

960

QCft

1,160

1,160

1,160

1 IQfk

1,130

910

1,060 1 t\pn

1 040

1,850

1,450

1,070

1,020

970

940

940

04ft

1,060

1,060

920

860

750

700

710

720

720

940

930

690

670

660

840

1,020

900

900

770

730

730

740

Feb.

1,150

1,200

Eflft

560

560

660

560

620

620

620

520

620

730

890

1,070

1,000

880

590

590

5Qf>

970

970

970

Q7n

760

790

890

950

1,090

1,060

1,060

1,220

1,160

1,270

1,320

1,150

1,230

1,200

1,210

1,550

1,700

1,410

1,500

1,760

1,580

1,680

1,760

1,470

1,450

1,350

1,400

1,450

1,350

1,000

1,120

Mar.

2,530

1,760

1,840

1,800

1,460

970

940

1,090

1,070

1 030

820

820

820

820

900

900

900

900

900

920

920

920

920

Q9fl

930

930

930

930

930

HO

540

540

£40

640

1,180

1,200

970

1,100

1,180

1,200

1,270

1,250

1,230

1,120

950

930

1 080

1,200

1,010

1,100

1,620

1,210

1,000

1,210

850

1,440

1,450

1,460

1,450

1,880

1,840

1,800

Apr.

1,850

1,650

2,810

2,840

2,220

740

740

740

740

740

136

136

136

136

136

174

174

174

174

174

174

174

500

500

1,070

2,540

2,860

2,380

2,440

2,400

2,250

2,500

2,620

2,400

2,580

2,020

1,800

1,600

1,280

1,600

2,020

2,800

3,940

4,750

6,780

8,100

8,400

7,900

7,600

8,400

8,400

9,600

10,000

9,200

7,300

6,050

5,600

6,350

8,100

9,200

10,300

12,200

12,200

11,500

10,300

May

9,030

9,030

9,030

9,030

9,060

8,980

0

0

0

0

2,410

2,400

6,050

6,030

6,190-

6,750

8,110

6,170

8,740

9,450

6,860

6,620

5,670

5,250

3,750

4,160

4,110

3,940

6,670

6,960

4,630

4,050

5,890

7 030

7*340

7,810

6,340

5,420

5,400

5,570

6,300

7,980

9,050

9,640

9,690

9,680

9,980

10, 800

11,200

11, 700

11, 600

11,800

12, 200

12,400

12, 100

12, 000

12,000

12,000

12,000

12, 000

11, 700

10,900

10,400

10,000

9,200

8,180

7,220

June

3,000

3,030

2,960

3,820

3,290

7,810

6,610

4,280

6,450

5,360

4,700

4,020

3,800

3,640

2,580

6,010

4,650

3,930

3,610

2,760

3,000

2,760

4,000

3,740

3,930

3,590

3,360

3,120

4,460

2,260

2,240

1,990

1,730

1,760

1,680

5,820

5,030

4,200

3,680

3,120

2,700

2,690

2,380

2,580

2,500

2,570

2,430

2,090

1,800

1,450

1,440

1,710

1,960

2,540

2,520

2,040

2,040

1,740

1,530

1,380

1,160

930

760

620

510

July

0

0

0

' 0

0

0

1,080

1,290

1,250

1,730

906

714

610

592

483

794

670

1,200

800

500

400

300

306

152

137

114

109

118

97

67

44

40

36

0

0

0

0

600

550

770

1,260

1,190

2,420

1,450

1,280

1,130

1,240

1,390

1,480

1,270

820

670

1,120

820

760

540

280

160

120

80

80

100

100

450

880

1,060

410

Aug.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

654

1,210

1,110

2,250

.2,200

2,230

2,280

1,320

1,620

2,470

3,080

2, £50

3,660

2,810

1,350

1,320

1,240

3,760

500

360

100

400

360

970

600

120

100

70

12

0

0

0

10

50

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Sept.

0

0

0

0

0

4,910

4,840

6,230

4,890

2,060

1,62

1,610

1,730

1,740

1,730

1,730

483

347

383

408.

460

488

538

330

3,140

4,290

4,060

1,220

1,590

1,600

1,880

1,860

1,810

1,680

1,680

O

O

0

0

O

O

0

0

0

0

0

0

1,000

270

150

SO

O

0

0

0

0

O

0

0

0

0

O

0

ft
BIO GRANDE BASIN 165

Daily discharge, in second-feet, of Rio Grande at San Martial, 'AT. Mex., for the 

years ending September 30, 1922-1926 Continued

Day

1924-25 

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

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

3 

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

6 ___ -..-..

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

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

8... . ...

9 ..

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

11 .

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

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

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

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

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

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

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

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

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

21 

22..... ....

23. .. ......

24... ..

26. 

26 

27. ....

28... ..

29 

30. 

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

1925-26 

1. .

2

3. .. .

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

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

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

7 

8- .

9. ..

10. .........

11 

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

13. ...

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

15 

16.. .

17 

18 .... ......

19 ..

20 . 

21..... ,..

22 ....

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

24 

25 .

26 

27 ..

28 

29 

30 . .

31 

Oct.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

201

201

182

137

82

Qfl

85

84

145

155

160

300

710

1,060

1,570

1,390

1,200

1,060

742

643

572

503

516

550

627

RAf)

647

585

617

Nov.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

20

50

70

85

100

115

120

130

135

140

160

180

195

210

225

550

572

597

629

587

fiKfi

735

747

663

810

755

745

745

676

149

570

804

Aon

822

719

619

580

561

742

696

ftQQ

581

560

617

820

Dec.

240

240

240

240

240

200

?00

260

250

240

94ft

250

350

350

350

300

300

280

280

320

320

320

260

200

200

180

160

1 V)

140

140

140

850

822

775

846

792

934

1,010

832

KftA

536

532

551

615

720

7AQ

665

635

626

658

725

710

734

853

929

Old

017

627

CQf\

KQfl

Jan.

100

50

50

50

50

100

400

orin

400

100

50

50

50

50

50

50

50

50

50

50

50

50

50

200

500

1,000

940

850

780

800

840

74fi

820

1,020

1 000

1 run

QAO

775

809

7QQ

7*4

741

725

720

712

AQ9

687

687

647

632

660

657

651

660

662

663

630

625

625

660

700

752

Feb.

890

870

850

830

800

770

740

710

690

670

650

630

610

590

580

570

560

540

525

515

570

680

735

790

735

680

657

686

697

679

630

681

642

647

OAfl

611

582

A1Q

631

660

666

669

A49

694

780

767

720

710

706

700

612

. 605

683

687

Mar.

570

560

550

530

480

440

400

365

410

460

500

550

590

620

650

680

710

740

760

780

790

810

830

860

820

760

700

800

1,100

1,530

690

690

690

690

690

690

690

690

1,200

1,180

1,170

1,260

1,350

1,100

842

755

752

776

775

900

925

1,020

1,050

1 050

1,050

1,130

1,180

1,200

1,210

1,120

Apr.

1,530

1,230

1,010

980

950

910

1,050

1,240

1.400

1,350

1,230

1,230

1,350

1,400

1,410

1,790

1,830

2,180

2,500

3,300

3,140

2,500

2,300

2,800

2,000

1,830

1,450

1,270

1,200

1,100

877

727

772

757

746

735

730

730

1,030

1.200

1,250

1,330

1,490

1,480

1,200

1,100

1,040

920

1,140

1,880

2,540

2,840

9 Q9n

1,900

3,420

4 94ft

5,000

6,060

7,180

May

1,180

1 qofl

1,420

1,650

1,300

1,020

1,000

1,100.

1,200

1,280

1,550

1,380

1,170

1,220

1,180

1,100

980

820

700

580

460

400

350

300

310

315

325

360

370

385

400

6,250

6,220

6,190

6,570

7,200

7,570

7,610

8.050

8,550

8.000

6,840

5,680

5,230

5,150

4,310

3,600

3,550

5,620

6,190

6,490

7,220

8.190

9,000

10,100

10,400

in onn

8,920

7,950

June

390

350

310

250

190

130

70

50

30

20

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

7,200

6,600

5,980

6,250

6,730

7,080

6,420

5,300

6, 330

6,330

6,350

6,400

6,420

6,110

6,200

5,280

4,830

4,820

4,800

4,700

4,280

3,450

2,130

1,600

1,320

1,090

988

922

712

500

July

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

: V

0

0

0

0

0

0

0

0

0

70

70

70

70

140

240

433

310

228

202

156

148

339

452

356

300

395

735

1,040

1,820

745

585

525

395

275

220

185

146

120

101

101

93

53

987

885

723

647

Aug.

1,610

830

420

140

20

120

420

420

370

325

250

300

1,670

540

350

200

200

190

170

140

100

90

400

350

200

200

210

220

160

100

40

115

50

0

0

0

0

0

0

0

0

0

100

225

175

100

50

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Sept.

40

970

950

860

860

1,060

490

280

175

160

140

125

125

125

2,140

830

240

240

270

320

570

660

270

270

260

250

240

230

220

220

0

0

0

0

0

0

0

0

0

0

0

0

0

60

123

60

20

0

880

490

160

100

60

0

0

0

0

3

0

10

NOTE. No gage-height record Feb. 11-15, Feb. 17 to Mar. 29, May 6-20, 22,23,25, June 22,24-26, June 28 

to Sept. 30, 1922; Oct. 1 to May 4, July 28 to Sept. 30, 1923; Mar. 20-23, 25-31, 1924; discharge computed 

from record of gain and loss in Elephant Butte Reservoir. River frozen Jan. 1-7 and 9-25,1925; discharge 

estimated. Quantities changed slightly to conform to computation rules used by Geological Survey.
166 SURFACE WATER SUPPLY, 1926, PART VIII

Monthly discharge of Rio Grande at San Martial, N. Mex., for the years ending 

September SO,

Month

1922

July -_ ..__ ........

1922-23

January __ . ________________________

April..... _____ ..... _______________

July

August.-.- ______ . ____________________

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

1923-24

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

July... .-. . . .

The year ___ .. ____ _____________ -..

1924-25

February... ________________________

April- . - . 

July..--... ; 

The year __________________ .... .. .

1925-26

April . 

July 

Discharge in second-feet

Maximum

1,550 

1,490 

2,530 

2,840 

10,490 

9,480 

2,740 

0 

0

10,400

812 

1,190 

1,070 

1,090 

2,860 

9,450 

7,810 

1,730 

3,760 

6,230

9,450

2,610 

3,220 

3,260 

1,850 

1,760 

1,880 

12,200 

12,400 

5,820 

2,420 

970 

1,000

12,400

0

225 

350 

1,000 

890 

1,530 

3,300 

1,650 

390 

240 

1,670 

2,140

3,330

1,570 

930 

1,040 

1,040 

780 

1,350 

7,180 

10,900 

7,200 

1,820 

225 

880

10,900

Minimum

749 

455 

0 

6*0 

2,220 

2,820 

0 

0 

0

0

0 

90 

520 

540 

136 

0 

1,680 

0 

0 

330

0

992 

860 

223 

660 

950 

850 

1,280 

5,400 

510 

80 

0 

0

0

0 

0 

140 

50 

515 

365 

910 

300 

0 

0 

20 

40

0

80

542 

532 

625 

582 

690 

727 

3,550 

500 

53 

0 

0

0

Mean

952 

897 

926 

1,370 

5,600 

5,230 

807 

0 

0

0 

0 

206 

665 

722 

845 

1,090 

4,960 

3,720 

469 

1,270 

2,040

1,330

1,620 

1,740 

1,110 

910 

1,340 

1,250 

6,840 

9,880 

2,260 

813 

117 

49

2,330

0

64.5 

245 

283 

680 

673 

1,650 

877 

59.7 

21.3 

347 

453

443

521 

677 

726 

735 

668 

960 

1,980 

7,160 

4,570 

442 

26.3 

65.5

1,550

Run-off in . 

acre-feet

58,500 

48,800 

56,900 

81,500 

344,000 

311,000 *«s

0

950,000

0 

0 

12,700 

40,900 

40,100 

52,000 

64,900 

305,000 

221,000 

28,800 

78,100 

121,000

964,000

99,600 

104,000 68,200- 

56,00tf 

77,100 

76,900 

407,000 

608,000 

134,000 

50,000 

7,190 

2,920

1, 690, 000

0 

3,840 

15,100 

17,400, 

37,800 

41,400 

98,200 

53,900 

3,550 

1,310 

21,300 

27,000

321,000

32,000 

40,300 44,600- 

45,200 

37,100 

59,000 

118,000 

440,000 

272,000 

27,200 

1,620 

3,900

1,120,000

NOTE. Monthly discharge computed by U. S. Geological Survey from daily-discharge record furnished5 

by the TJ. S. Bureau of Reclamation.
BIO GEANDE BASIN 167

 ,, BIO GRANDE BELOW ELEPHANT BUTTE BAM, N. HEX.

LOCATION. About sec. 25, T. 13 S., R. 4 W., 1 mile below Elephant Butte Dam, 

Sierra County. Nearest tributary, Mescal Canyon, enters half a mile downstream.

DRAINAGE AREA. Not measured.

RECORDS AVAILABLE. October 1, 1916, to September 30, 1926.

GAGE. Stevens water-stage recorder on left bank.

DISCHARGE MEASUREMENTS. Made from cable at gage.

CHANNEL AND CONTROL. Bed of compact gravel; probably permanent. Control 

is gravel bar at mouth of Mescal Canyon; shifts.

REGULATION. Flow controlled by Elephant Butte Dam, which forms reservoir 

having capacity of 2,638,000 acre-feet.

EXTREMES OF DISCHARGE. No data.

ACCURACY. Rating curve defined by 45 current-meter measurements covering 

range between 0 and 2,450 second-feet made by Bureau of Reclamation 

during current year.

COOPERATION. Records furnished by United States Bureau of Reclamation.

Daily discharge, in second-feet, of Rio Grande below Elephant Butte, N. Mex.,for the 

year ending September SO, 1926

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.

282

470

470

280

280

280

280.

280

280

280

100

100

100

100

460

280

280

280

280

Nov.

5

5

5

5

5

5

100

400

400

400

400

400

350

206

206

206

206

354

400

400

300

5

5

Dec.

83

400

400

400

400

350

206

206

206

206

OKA

400

500

600

500

75

Jan.

64

306

230

154

154

Feb.

154

203

351

351

351

363

500

500

500

500

500

500

575

600

600

600

600

600

500

265

620

Mar.

700

700

700

700

739

1,040

1,200

1,200

1,200

1,200

1,200

1,200

1,060

1,050

1,000

940

940

940

983

1,200

1,200

i oftfl

1,520

1,130

750

645

896

500

700

Apr.

957

957

1,430

1,800

1,800

1,800

1,890

2,150

2,150

2,150

2,150

2,060

1,940

2 19ft

1,680

1,900

1,900

1,900

1,900

1,800

1,750

1,750

1,750

1,750

1,900

1,920

1,900

1,700

1,680

May

1,570

1,760

1,630

1,110

1,110

1,110

1,110

1,110

1,110

1,110

1,140

1,300

1,490

1,490

1,490

1,550

1,760

1,820

2,050

2,290

2,580

2,520

2,460

2,460

2,460

2,460

2,190

2,000

1,700

1,770

June

2,050

2,050

2,050

2,050

2,050

2,050

2,050

2,050

2,050

2,050

2,030

2,000

2,000

2,000

2,050

2,100

2,190

2,210

2,250

2,250

2,250

2,250

2,340

2,400

2,400

2,400

2,400

2,400

2,400

July

2,140

1,890

1,890

2,060

2,400

2,400

2,400

2,400

2,310

2,250

2,240

1,420

1,150

1,150

1,150

1,150

1,150

1,150

1,160

1,230

1,280

1,520

1,830

1,500

1,500

1,500

1,300

970

970

970

970

Aug.

972

1,320

1,950

2,250

2,250

2,250

2,250

2,250

2,320

2,400

2,400

2,400

2,400

2,400

2,200

1,950

1,700

1,700

1,700

1,700

1,700

1,860

1,950

1,900

1,800

1,700

1,250

1,340

1,650

1,660

1,720

Sept.

1,720

1,850

1,800

1,800

1,800

1,800

1,800

1,800

1,650

1,550

1,480

1,400

1,400

1,400

1,400

1,400

1,400

1,350

1,300

1,300

l;300

1,300

1,300

1,300

1,260

1 fUrt

530

17

8

6

NOTE. No flow on days for which discharge is not shown. 

computation rules used by U. S. Geological Survey.

Quantities changed slightly to conform to
168 SUEFACE WATER SUPPLY, 1926, PART VIII

Monthly discharge of Rio Grande below Elephant Butte Dam, N. Mex., for the year 

ending September SO,- 1926

Month

May.. . 

July..- . ::. ........ ... .... ...... ..........

Discharge in second-feet

Maximum

490 

400 

600 

306 

620 

1,520 

2,150 

2,580 

2,400 

2,400 

2,400 

1,850

2,580

Minimum

0 

5 

0 

0 

0 

500 

957 

1,110 

2,000 

970 

972 

6

0

Mean

167 

173 

187 

29.3 

348 

997 

1,810 

1,750 . 

2,170 

1,590 

1,910 

1,320

1,040

Run-off in 

acre-feet

10,300 

10,300 

11,500 

1,800 

19,300 

61,300 

108,000 

108,000 

12»,000 

97; 800 117, oqo

78,600

753,000

RIO GRANDE NEAR El PASO, TEX.

LOCATION. At Courchesne's limekiln, 1 mile upstream from pumping house of

Smelter Co. and 4 miles north of El Paso, El Paso County. 

DRAINAGE AREA. Not measured. 

RECORDS AVAILABLE. May 1, 1897, to September 30, 1926, at present location;

May 10, 1889, to June 30, 1893, for station at Old Fort Bliss, 1,500 feet above

Mexican Dam; January 25, 1895, to May 1, 1897, for station at pumping

house of Smelter Co., 3 miles north of El Paso. 

GAGE. Continuous water-stage recorder. 

DISCHARGE MEASUREMENTS. Made from cable. 

CHANNEL AND CONTROL. Bed of sand; shifting. Banks have brush along

edges and not subject to overflow. One channel at all stages. Control is

sand bed of stream; shifting. 

EXTREMES OP DISCHARGE. Maximum mean daily stage during year, 4.96 feet

July 12 (discharge, 4,910 second-feet); minimum mean daily stage, 0.13

foot January 31 (discharge, 136 second-feet).

1889-1893,1895-1926: Maximum mean daily discharge, 23,680 second-feet

June 12, 1905; no flow for several periods. 

DIVERSION. Considerable water is diverted in Colorado and New Mexico;

amount not known. 

REGULATION. Flow regulated by storage at Elephant Butte Dam, 120 miles

above El Paso. 

ACCURACY. Stage-discharge relation not permanent. Daily discharge based

largely on frequent current-meter measurements.

COOPERATION. Daily discharge furnished by United States Bureau of Reclamation through Mexican section of International Boundary Commission.

Monthly and yearly figures changed to agree with United States Geological

Survey methods of computation.
RIO GRANDE BASIN 169

Daily discharge, in second-feet, of Rio Grande near El Paso, Tex., for the year ending

September 30, 1926

Day

I... ... .., . .

2_ . .

3........,:... .

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

5-. .........

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

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

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

9.

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

ii ... _- T _

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

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

14 T ~ 

15.. ........

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

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

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

19 ... .

20 ...

21 .!....

22... .. ..

23-. ........

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

25 __

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

27.-... __ .

28. ...

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

30 

31.........

Oct.

610

800

830

750

750

qfi/\

260

245

245

OGA

430

*MA

340

340

340

250

370

577

557

496

365

367

360

380

322

335

OQ1

276

291

281

Nov.

321

347

376

346

9ft9

240

229

204

172

165

168

166.

165

176

185

175

168

210

270

3KQ

287

341

361

323

282

291

247

276

Dec.

307

278

232

192

qn*7

175

196

192

182

180

179

180

162

157

157

200

357

327

312

318

258

204

no/I

170

252

266

273

293

300

374

389

Jan.

359

346

316

297

295

9>;7

241

215

205

200

192

183

174

174

168

164

163

154

152

154

161

162

147

145

167

181

169

162

157

136

Feb.

138

221

277

264

000

246

974

322

9QQ

OCA

287

285

276

307

01 Q

OQQ

D4Q

360

335 q-iq

QAQ

 >Q7

W7

974

237

173

163

Mar.

idfi

137

157

oqn

stflQ

400

397

451

624

706

751

705

QCO

934

OKA

709

797

751

ftlQ

632

677

586

749

879

1,635

1 440

1,007

852

760

Apr.

822

602

537

597 "650

1,162

1,117

1,085

1,270

1,620

1,355

1,435

1,390

1,312

962

1,252

925

1,149

1,359

1,202

1,065

1,005

930

920

976

1,030

Ir 036

1,545

1,430

May

1,091

1,246

1,281

1,640

1 PLQ1

1,264

952

840

887

920

742

647

652

640

745

955

932

755

725

785

867

1,027

1 O.Q7

1,130

945

925

1,551

2,395

1,667

2,030

1,790

June

1,459

1,037

1,304

1,534

1 479

1,509

1,607

1,435

1,212

990

1,092

1,130

1,335

1,314

992

906

856

1,309

1,082

1,380

1,592

1,415

1,136

1,114

1,142

1,122

1,287

1,510

1,399

1,266

July

1,195

1,200

1,294

1,344

1,677

1 °.ftfi

1,242

1,557

1,455

1,475

2,077

4,912

2,692

1,940

1,082

1,020

945

915

930

817

515

567

622

1,202

1,830

1,405

2,162

2,390

1,192

1,004

881

Aug.

756

687

492

397

541

945

1,057

1,145

1,177

1,047

897

1,077

1,062

1,162

1,662

1,330

1,212

1,035

1,237

935

952

942

1,195

1,250

1,120

1,031

861

912

805

570

Sept*

825

825

877

1,185

1,220

1,175

1,030

1,060

1,250

1,400

1,680

1,470

1,360

1,190

1,000

950

942

860

960

1,062

895

775

710

700

730

990

1,625

1,690

1,275

1,040

Monthly discharge of Rio Grande near El Paso, Tex., for the year ending September

SO, 1926

Month

April.1-.- 

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

June.... __ _____ ' ____ . ______ .. ..

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

Discharge in second-feet

Maximum

830 

376 

389 

359 

387 

1,640 

1,620 

2,400 

1,610 

4,910 

2,330 

1,690

4,910

Minimum

245 

165 

157 

136 

138 

137 53T V 

640 

856 

515 

397 

700

136

Mean

412 

257 

242 

199 

278 

671 

1,100 

1,130 

1,260 

1,450 

1,030 

1,090

762

Run-off in 

acre-feet

25,300 

15,300 

14,900 

12,200 

15,400 

41,300 

65,400 

69,400 

75,200 

88,900 

63,100 

65,000

551,000

RIO GRANDE BELOW OLD FORT QUITMAN, NEAR FINIAY, TEX.

LOCATION. At lower end of Valley of El Paso, \% miles below Old Fort Quitman

and \\% miles south of Finlay, Hudspeth County. 

DRAINAGE AREA. Not measured.

RECORDS AVAILABLE. September 1, 1922, to September 30, 1926. 

GAGE. Vertical staff on left bank. 

DISCHARGE MEASUREMENTS.Made from cable near gage.
170 SURFACE WATER SUPPLY, 1926, PART VIII

CHANNEL AND CONTROL. Bed consists of sand; shifting. Banks of sand and" 

clay; not subject to overflow; right bank with sparse vegetation. Channel 

straight for 500 feet above and below station. Control is sand bed of stream; 

shifting.

EXTREMES OP DISCHARGE. Maximum mean daily stage during year, 6.46 feet. 

September 28 (discharge, 2,450 second-feet); minimum mean daily discharge, 45 second-feet September 7-8.

1922-1926: Maximum mean daily discharge recorded, 2,600 second-feet 

August 26, 1923, and September 11, 1925; minimum mean daily discharge,, 

20 second-feet July 23-24, 1925.

DIVERSIONS. Considerable water diverted in Colorado, New Mexico, Texas, and 

Mexico; amount not known.

REGULATION. Flow regulated by storage at Elephant Butte Dam, 120 miles 

above El Paso.

ACCURACY. Stage-discharge relation not permanent; 36 discharge measurements, ranging between 84 and 1,136 second-feet, werfe made from October 

1 to June 30, and frequently thereafter. Discharge based on frequent discharge measurements.

COOPERATION. Station maintained and records furnished by Mexican section 

of International Boundary Commission.

Daily discharge, in second-feet, of Rio Grande near Finlay, Tex., for the year ending

September SO, 1926

Day

1

2 

3 

4 ...

6 

6 - 

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

8 

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

10 

11 

19

13 

14 

15. 

16- 

17 

18 . _ ....

19 

20, 

21 

22. 

23 

24. __

25 

26 

27 

28 .

28 

30 

31 

Oct.

450

395

360

410

475

535

Af{f{

380

Qflfl

300

285

260

285

01 C

295

290

285

255

245

275

360

360

350

345

325

315

310

310

280

285

Nov.

255

250

91 ^

145

230

260

occ

250

220

210

200

200

195

235

195

155

160

195

215

225

260

275

265

Ofin

235

Dec.

210

215

1 0*1

200

280

270

220

ojc

ocn

240

215

220

215

91ft

205

220

ion

170

185

195

210

225

210

170

1 ^A

160

155

180

170

Jan.

195

210

97A

310

onr

320

295

285

250

235

OOP:

230

220

215

205

195

190

185

180

180

175

i on

175

165

160

170

Feb.

180

175

165

155

185

91 n

280

oon

160

180

160

1OA

Q>;

on

75

70

QC

115

190

195

200

175

130

Mar.

115

14C

1 OC

100

110

95

100

75

75

80

65

60

95

165

OCA

315

280

245

240

235

185

185

190

155

165

235

340

560

540

Apr.

510

435

355

14 e;

9,1 K

91 *\

165

1Oft

ion

335

295

QQr

f\7f\

640

665

ficwi

REA

545

390

465

465

370

295

265

245

230

255

May

530

635

630

1,400

960

940

985

940

740

620

4QfL

490

9Qf\

220

195

160

135

170

115

95

90

120

115

450

640

1,000

1,050

June

1,075

1,150

1,140

820

590

cec

610

630

KQft

AQK

^df{

300

310

285

340

345

OKC

225

220

OQA

345

385

360

210

245

320

July

385

320

OCA

375

ficn

670

CCA

500

470

47c

810

835

1,050

1,375

1,600

1,850

2,175

1,475

955

955

610

480

 435

430

500 6?n

630

710

880

Aug.

850

700

KQA

QCft

165

Qe;

75

60

QA

85

80

on

170

150

175

1,100

480

con

590

510

455

ann

350

305

250

99*1*

215

275

235

205

160

Sept.'.

95

75-

ea

w

55

65

45

45

110

215-

340-

450

580

665-

620-

660-

4Qfi

445

420-

425-

430-

405-

380*

340'

295

340

2,450

1,360-

1,275
RIO GRANDE BASIN 171

Monthly discharge of Rio Grande near Finlay, Tex., for the year ending September

SO, 1926

Month

January ___________________________

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

The year _______________________

Discharge in second-feet

Maximum

635 

275 

280 

325 

280 

560 

690 

1,400 

1,150 

2,180 

1,100 

2,450

2,450

Minimum

245 

145 

150 

160 

70 

60 

130 

90 

210 

280 

60 

45

45

Mean .

338 

222 

205 

225 

156 

184 

383 

505 

458 

785 

321 

444

354

Run-off in 

acre-feet

20,800 

13,200 

12,600 

13,900 

8,650 

11,300 

22,800 

31,100 

27,300 

48,300 

19,700 

26,400

256,000

RIO GRANDE ABOVE PRESIDIO, TEX.

LOCATION. 1 mile above Haciendita, 8 miles above mouth of Rio Conchos,

and 10 miles northwest of Presidio, Presidio County. 

DRAINAGE AREA. Not measured. 

RECORDS AVAILABLE. May 22, 1900, to March 31, 1914; September 1, 1919, to

March 31, 1920; and August 1, 1923, to September 30, 1926. 

GAGE. Stevens 8-day water-stage recorder. 

DISCHAEGE MEASUREMENTS. Made from cable near gage. 

CHANNEL AND CONTROL. Bed of sand. Channel straight for 1,000 feet above

and below station. Banks medium in height and steep. Control is stretch

of channel of stream; shifts. At extremely high stages backwater from

Rio Conchos reaches this station. 

EXTREMES OF DISCHARGE. Maximum mean daily discharge for year, 3,000

second-feet August 23; minimum, 95 second-feet September 15.

1900-1914, 1919-20; 1923-1926: Maximum mean daily discharge, 18,100

second-feet September 15-16, 1919; no flow for several periods. 

DIVERSIONS. Considerable water diverted in Colorado, New Mexico, Texas,

and Mexico; amount not known. 

.REGULATION. Flow largely regulated by storage at Elephant Butte Dam,

120 miles above El Paso.

ACCURACY. Stage-discharge relation not permanent. 39 discharge measurements, ranging between 218 and 1,395 second-feet, were made from October

1 to June 30, and frequent measurements were made thereafter. Daily

discharge based largely on discharge measurements. 

COOPERATION. Station maintained and records furnished by Mexican section

of International Boundary Commission.

96272 30 12
172 SURFACE WATER SUPPLY, 1926, PART VIII

Daily discharge, in second-feet, of Rio Grande above Presidio, Tex., for the year 

ending September SO, 1926

Day

1 ... - -

4 

5 

6. . ..... . 

7. - 

9. . -

10. 

11 

12 

13 

14 

15 

16. 

17 

18 

19 

20 

21 

22.. 

23 

24 

25 . _

26 

27 

28

29 ...

30 

31 

Oct.

860

920

840

800

780

710

640

660

1,100

940

760

1,025

1,075

950

930

920

900

860

780

656

610

596

550

510

640

580

645

605

565

540

535

Nov.

520

525

515

510

505

500

495

460

450

455

460

460

425

365

330

300

305

300

305

260

265

265

280

275

250

235

220

99 K

230

235

Dec.

215

215

215

210

205

200

210

215

225

260

245

235

255

255

265

250

260

265

250

245

240

240

215

210

210

220

240

255

250

230

225

Jan.

325

330

325

33$

340

365

380

395

385

395

440

460

455

450

450

440

425

385

355

345

325

330

335

320

315

310

305

310

305

300

Q1A

Feb.

9on

285

280

280

275

270

270

270

255

250

260

300

315

285

255

255

245

240

235

230

225

225

215

200

195

185

180

Mar.

255

285

310

305

280

265

295

330

285

275

260

250

245

230

235

215

210

205

200

195

195

310

350

330

315

335

345

OKA

350

290

285

Apr.

330

640

1,050

950

760

640

570

525

450

365

435

310

270

265

370

435

810

1,000

1,150

1,025

910

980

920

890

765

765

580

670

685

May

620

670

745

820

985

1,650

1,225

1,200

1,275

1,475

1,925

1,750

1,500

1,125

960

885

790

875

680

575

525

490

475

465

470

580

450

415

395

620

1 ' 400

June

1,625

1,400

1,475

1.500

2,500

1,525

1,275

1,325

1,325

1,600

1,375

1,150

1,100

1,025

920

825

750

710

890

890

740

655

595

560

635

575

575

615

610

570

July

510

505

500

495

500

575

1,025

780

960

1,000

830

800

1,400

1,300

1,150

1,300

1,400

1,475

1,625

1,675

1,775

1,650

1,550

1,450

1,525

1,400

1,050

1,200

1,200

1,025

1,050

Aug.

1,275

1,525

1,450

1,350

1,125

1,025

1,000

975

950

755

560

640

640

675

1,075

890

1,000

2,375

2,300

1,525

1,200

1,800

3,000

2,775

2,200

1,850

1,250 i win

990

860

965

Sept.

900

1,000

1,150

730

AQK

400

280

375

270

94n

< 205

150

115

100

95

280

1,250

2,100

1,200

950

830

760

695

660

630

1 200

1,375

non

1,800

2,300

Monthly discharge of Rio Grande above Presidio, Tex., for the year ending September

' SO, 1926

Month

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

March.. . _ . _ .. _ . . ... . . _

April 

July

Discharge in second-feet

Maximum

1,100 

525 

265 

460 

315 

350 

1,150 

1,920 

2,500 

1,780 

3,000 

2,300

3,000

Minimum

510 

220 

200 

300

180 

195 

265 

395 

560 

495 

550 

95

95

Mean

757 

364 

233 

363 

249 

277 

674 

904 

1,040 

1,120 

1,330 

782

678

Run-off in

acre-feet

46,600 

21,700 

14,300 

22,300 

13,800 

17,000 

40,100 

55,600 

62,100 

68,800 

81,700 

46,500

490,000

BIO GRANDE BELOW PRESIDIO, TEX.

LOCATION. At west end of canyon section of Rio Grande, 6 miles below Presidio, 

Presidio County, and 7 miles below mouth of Rio Conchos.

DRAINAGE AREA. Not measured.

RECORDS AVAILABLE. May 1, 1900, to July 31, 1915; September 1, 1919, to 

March 31, 1920; August 1, 1923, to September 30, 1926.

GAGE. Stevens continuous water-stage recorder.

DISCHAEGE MEASUREMENTS. Made from cable or from boat.
RIO GRANDE BASIN 173

CHANNEL AND CONTROL. Bed of sand; shifts. Right bank not subject to 

overflow. Left bank wooded and subject to overflow at gage height 20 

feet for about 750 feet. Overflow area is cultivated land with small brush. 

Control consists of sand; shifts. Alamito Creek, an intermittent stream, 

which reaches the river a quarter of a mile below station, is subject to torrential floods that bring large quantities of boulders and gravel into the Rio 

Grande, forming a temporary dam which causes changes in stage-discharge 

relation.

EXTREMES OF DISCHARGE. Maximum mean daily discharge during year, 13,400 

second-feet August 27; minimum, 1,420 second-feet May 28-29.

1900-1915, 1919-20, 1923-1926: Maximum stage recorded, 26.35 feet 

September 11, 1904 (discharge, 149,200 second-feet); minimum mean daily 

discharge, 5 second-feet May 4-14, 1904. " 

DIVERSIONS. Considerable water diverted in Colorado, New,Mexico, Texas,'and 

Mexico; amount not known.

REGULATION. Flow partly regulated by storage at Elephant Butte Dam, 120 

miles above El Paso.

ACCURACY. Stage-discharge relation not permanent. 77 discharge measurements, ranging between 1,429 and 10,526 second-feet, were made from 

October 1 to June 30, and frequent measurements were made thereafter. 

Determination of discharge based on discharge measurements.

COOPERATION. Station maintained and records furnished by Mexican section 

of International Boundary Commission.

Daily discharge, in second-feet, of Rio Grande below Presidio, Tex., for the year 

ending September SO, 1926

Day

1 .... . .

2 .........

3. ........

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

5 .. .......

6. ........

7..,. ........

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

9......... .

10. ........

11 . ......

12 ......

13 .......

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

15 .........

16.. ......

17 . .....

18 ..

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

20 .......

21... _ ......

22 ........

23 ........

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

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

26 

27 

28 

29

30.. ...... 

31 

Oct.

6,075

6,275

6,100

6,025

5,700

5,225

5,200

4,575

6,175

5,600

5,500 '8,' 200

9,800

7,775

7,700

8,150

9,200

11,300

11.450

10,600

9,400

9,450

8,550

8,300 7 Qfin

7,475

7,225

6,775

6,200

5,975

5,750

Nov.

5,175

5,050

5,000

4,700

4 inn

4,250

4,325

4,100

3,300

3,600

4,325

4,500

'4,325

3,750

3,700

3,300

3,600

4,000

3,300

2,550

2 625

o1 7nn

2,725

2,750

2

7OK

2,525

2,375

2,400

2,500

2,525

Dec.

2,350

2,325

2,275

2,200

2,175

2 125

2,100

2,000

2,100

O 1/Wl

2,175

1,850

1,825-

1,800

1,775"

1 Q9£

2,100

2 125

2^075

1 Qfin

1 Q7C

1,850

1 ftftfi

1,725

1.800

1,850

1,925

1,725

1,750

1,775

Jan.

1,745

1,850

1,975

2,050

2,025

1,900

1,925

1,900

1,925

2,025

2,025

2,025

2,050

1,975

1,925

2,025

2,025

1,975

1,950

1,900

1,875

1,825

1,850

1,875

1,950

1,975

1,975

1,875

1,825

1,875

1,850

Feb.

1,600

1,825

1,775

1,725

1,700

1,575

1,775

1,800

1,800

1,775

1,825

1,850

1,775

1,800

1,850

1,825

1,850

1,875

1,875

1,825

1,775

1,800

1,775

1,775

1,825

1,850

1,900

1,925

Mar.

2,075

2,025

1,975

2,000

2,050

2,075

2,050

2,050

2,075

2,100

2,125

2,125

2,125

2 12R

2,150

2,200

2,200

2,150

2,075

1,950

1,850

1,775

1,625

1,550

1,575

1,600

1,650

1,600

1,600

1, 625

1,650

Apr.

1,675

1,750

2,000

1,975

1,975

1,925

1,775

1,750

1,725

1,700

1?725

1 7in

1,800

1,850

1,725

1,675

2,000

2,100

2,150

2,025

9 IW>

1,975

1,950

1,900

1,850

1,900

1,875

2,150

May

2,250

2,000

2,100

2,000

2,125

2,750

2,500

2,300

2,350

2,450

2,325

2,250

2,175

2, 125

2,075

2,125

2,175

2,025

1,900

1,750

1,625

1,550

1,625

1 600

1,650

1,750

1,650

1,425

1,425

1,550

1,775

June

3,625

3,300

2,750

3,400

3,100

4,275

3,600

3,150

3,150

4,025

3,500

3,275

3,200

3,100

3,000

2,925

2,750

2,675

2,650

2,625

2,800

2,650

2,625

2,575

2,925

2,675

2,450

2,325

2, 375

2,275

July

2,125

2,275

2,125

1,975

2,000

2,150

3,175

2,750

2,350

2,375

2,325

2,425

3,075

3,000

2,600

2,700

2,900

2,950

3,025

3,075

3,100

3,025

2,875

2,325

2,450

3,200

2,550

2,750

3,225

5,150

4,800

Aug.

5,675

7,300

6,075

5,650

5,400

5,050

4,800

4,675

4,275

4,150

4,075

3,850

3,800

3,-775

4,125

1 firm

3,450

3,500

5,925

5,275

4,550

7,400

11,400

10,800

9,850

12,600

13,400

11,800

10,700

9,200

7,425

Sept.

7 fmn

6,700

6,650

6,650

6,600

6,125

6,100

6,175

7,925

10,200

11,700

11,500

10,400

8,900

7,900

7,500

7,350

7,200

6,600

5,800

6,375

6.650

7,450

7,550

7,575

7,700

7,300

7,700

8,300
174 SURFACE WATER SUPPLY, 1926, PART VIII

Monthly discharge of Rio Grande below Presidio, Tex., for the year ending September

SO, 1926

Month

April _. _ ...._ ... 

July . - . .._ . _- 

September- .. .. _________________ ___

Discharge in second-feet

Maximum

11,400 

5,180 

2,350 

2,050 

1,920 

2,200 

2,150 

2,750 

4,280 

5,150 

13,400 

11,700

13,400

Minimum

4,580 

2,380 

1,720 

1,740 

1,600 

1,550 

1,650 

1,420 

2,280 

1,980 

3,450 

5,800

1,420

Mean

7,410 

3,570 

1,980 

1,930 

1,800 

1,930 

1,870 

1,980 

2,990 

2,800 

6,570 

7,600

3,550

Run-off in 

acre-feet

455,000 

212,000 

122,000 

119,000 

99,800 

119,000 

112,000 

122,000 

178,000 

172,000 

404,000 

452,000

2, 570, 000

BIO GRANDE AT IAN6TRT, TEX.

LOCATION. At east end of canyon section, half a mile from Langtry, Val Verde 

County, one-fourth mile below Pump Canyon, and 13 miles above mouth 

of Pecos River.

DRAINAGE AREA. Not measured.

RECORDS AVAILABLE. January 20, 1924, to September 30, 1926; May 1, 1900, 

to October 15, 1914; December 1, 1919, to March 31, 1920.

GAGE. Vertical and inclined staff on right bank; read by H. T. Dodd.

DISCHARGE MEASUREMENTS. Made from cable 500 feet below gage or by wading.

CHANNEL AND CONTROL. Channel straight for 1 mile above and one-fourth 

mile below station. One channel at all stages. Bed of sand and gravel; 

fairly permanent. Right bank of rock, permanent, and is not overflowed. 

Left bank of rock overlain by sand and not subject to overflow. Control 

is sand, gravel, and boulder riffle, 1,000 feet below gage; shifts.

EXTREMES OP DISCHARGE. Maximum stage during year, from graph drawn 

from gage readings, 10.72 feet at 11 p. m. August 25 (discharge, 24,500 

second-feet); minimum stage, 1.85 feet from 5 p. m. July 3 to 8 a. m. 

July 8 (disQharge, 1,340 second-feet).

1900-1914, 1919-20, 1924-1926: Maximum stage recorded, 34.25 feet 

September 13, 1904 (discharge, 132,000 second-feet); minimum discharge, 

270 second-feet May 8-13, 1904. A float measurement by W. H. Dodd 

on September 16, 1919, at a stage of 46.9 feet, present gage datum (by levels 

to point shown by W. H. Dodd), showed discharge of 152,000 second-feet. 

. A stage of 56.9 feet, present gage datum, was reached about June 18, 1922; 

determined by leveling to flood mark made by W. H. Dodd.

ICE. None.

DIVERSIONS. Considerable water is diverted in Colorado, New Mexico, Texas, 

and Mexico; amount not known. Records of the Board of Water Engineers 

for the State of Texas show that about 180,000 acres was irrigated in 1920 

by diversions below the station, practically all in Hidalgo and Cameron 

Counties.

REGULATION. Flow partly regulated by storage on Mexican tributaries and at 

Elephant Butte Dam, 120 miles above El Paso.
BIO GRANDE BASIN 175

ACCURACY. Stage-discharge relation not permanent. Rating curve well 

defined for all stages. Gage read to half-tenths twice daily. Daily dischatge determined by applying mean daily gage height to rating table 

or, on days of considerable fluctuation in stage, by averaging discharge 

for intervals of a day, using gage-height graph based on daily gage readings. 

Shifting-control method used June 19 and July 16 to September 30. Records 

fair.

Discharge measurements of Rio Grande at Langtry, Tex., during the year ending

September 30, 1926

Date

Oct. 2..........

Oct. 10...... ...

Oct. 17.........

Oct. 24. __ . .

Nov. 4... _ ....

Nov. 11 ......

Dec. 12.........

Dec. 19 _ . .....

Dec. 26 __ . ...

Jan. 8 ..........

Jan. 15 . ......

Jan. 29.........

Feb. 6 .- .. _

height

Feet 

3.10

3.00

4.06

4.66

3.00

2.60

2.38

2.32

2.42

2.36

2.52

2.52

2.42

2.34

Discharge

Sec.-ft. 

3,300

3,090

5,390

6,630

3,050

2,360

2,010

1,920

2,080

1,980

2,190

2,200

2,060

1,950

Date

Feb. 27 

Mar. 9 

Mar. 16 

Mar. 26 

Apr. 15 ..

Apr. 27 

May 8..... .....

May 15 ...

May 22.........

May 28... ......

Gage 

height

Feet 

2.24

2.18

2.04

2.00

2.16

1 Qfi

2.08

2.28

2.30

2.16

3.00

1.96

2.28

5.04

Discharge

Sec.-ft. 

1,780

1,710

1,520

1,520

1,670

1,410

1,550

1,830

1,870

1,670

2,980

1,490

1,820

8,620

Date

July 12.. __ ..

July 17... ......

July 23..... ....

July 29 ....

Aug. 7 .. 

Aug. 13 

Aug. 20 

Aug. 29 __ . .

Sept. 4. .....

Sept. 11.. ......

Sept. 17...- ...

Sept. 24.. 

Gage 

height

Feet 

2.06

2.30

2,71

3.10

2.87

3.73

2.86

2.94

9.20

4.39

* 3.80

5.86

3.97

Discharge

Sec.-ft; 

1,530

1,830

2,400

3,420

2,880

4.790

2,810

3,060

20,600

6,410

4,960

10,500

5,510

Daily discharge, in second-feet, of Rio Grande at Langtry, Tex., for the year ending

September 30, 1926

Day

1 

2

3 __ .... _

4 ___

5 

6 __ .......

7. _ ..

8. _ .......

9 _ . __ ...

10 

11 _ 

12 ___ ..... .

13. __ . .....

14 

15 

16 

17 ......

18 __ .. .!..

19 

20 

21 ... .

22

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

24 

25... 

26 ..

27 

28 

29. ....

30. .

31 _

Oct.

3,410

3,210

3,020

2,840

2,670

2,340

2,670

2,500

3,020

3,020

7,420

9,840

6,680

10,400

16,000

6,680

5,480

5,240

5,240

5,480

7,160

7,160

7,400

6,920

6,200

5,960

5,480

5,240

4,520

3,830

3,830

Nov.

3,620

3,410

3,410

3,020

3,020

2,670

2,670

2,670

2,500

2,340

2,340

2,190

2,190

2,190

2,190

2,190

2.190

2,190

2,190

2,190

2,190

2,190

2,190

2,190

2,040

O f\AC\

9 fUft

2,040

2,040

2,040

Dec.

2,040

2,040

2,040

2,040

2,040

2,040

2,040

2,040

1,890

1,890

1,890

1,890

1,890

1,890

1,890

1,890

2,040

2,040

o fvifl

2,040

9 fun

2,040

2,040

2,040

2,040

2

C\Afi

2,040

2,040

2,040

2,040

2,040

Jan.

2,040

2,040

2,040

2,040

2,040

2,040

2,190

9 ion

9 ion

2,190

9 ion

2,190

2,190

2,190

2,190

2,190

2,190

2,190 9 ion

9 ion

9 ion

9 ion

2,190

2,190

2,040

9 Adft

2,040

2,040

2,040

2,040

2,040

Feb.

2,040

2,040

2,040

2,040

2,040

1,890

2,040

9 <un

1,890

1 son

i son

1 son

1,890

1,890

1,890

1,890

1,890

1,890

1 890

1^890

1,890

1,890

1,890

1,760

1,760

1,760

1,760

1,760

Mar.

1,760

1,760

1,760

1,760

1,760

1,760

1,760

1,760

1,760

1,760

1,760

1,760

1,630

1,630

1,630

1,510

1,570

1,630

1 630

1,630

1 630

1,630

1,570

1,510

1,510

1,510

1,510

1,510

1,510

1,510

1,510

Apr.

1,510

1,510

1,510

1,510

1,510

1,760

2,190

1,630

1,760

1,760

1,510

1,510

1,510

1,510

1,450

1,450

1,510

1,510

1,450

1,510

1 630

1,630

1,630

2,040

2,040

1,760

1,630

1,630

1,630

1,630

May

1,630

2,670

2,340

2,040

2,040

3,020

2,040

1,890

2,190

2,340

2,190

2,040

2,190

2,040

1,890

1,760

1,760

1,760

1,760

1,760

1,760

1,760

1,760

2,040

2,190

2,340

2,040

2,840

2,340

1,760

1,760

June

4,260

1,510

1,570

1,760

3,410

3,300

4,520

3,210

2,670

2,190

1,890

1,890

1,760

1,630

1,510

1,450

1,390

1,390

5,490

2,800

1,760

1,630

1,630

1,570

1,570

1,570

1,510

1,760

1,760

1,510

July

1,510

1,450

1,390

1,340

1,340

1,340

1,340

1,450

2,190

2,340

2,190

1,890

1,760

2,040

2,040

2,500

2,340

2,340 9 <un

2,190

2,340

4,010

4,440

2,670

2,670

2,670

2,670

2,670

2,670

3,960

13,200

Aug.

10,800

10,300

9,590

6,200

5,480

5,240

4,760

4,050

3,830

3,410

3,210

3,020

2,670

4,320

3,410

2,500

2,840

2,670

3,020

3,020

3,820

4,280

4,050

5,720

19,000

18,800

12,100

18,500

20,600

16,300

14,200

Sept.

10,600

8,120

6,920

6,200

5,720

5,000

4,280

3,830

5,480

5,000

'5,000

9,740

14,700

15,800

15,800

14,200

13,200

10,600

9,090

8,120

6,920

6,440

5,960

5; 720

5,480

5,240

5,000

4,280

4,050

3,830
176 SURFACE WATER SUPPLY, 1926, PART VIII

Monthly discharge of Rio Grande at Langtry, Tex., for the year ending September

Month

October ______ ___ _ _ _ _

November..... __ _____ .. _ ___ __ ......

December _____ _______________ ____

February...- ______ ..

March. __ _ __ __ _____ .... _ ___ . .

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

May ________________________ ..... 

June.. ____________________________

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

September ___________________ .....

The year _____________ .................

Discharge in second-feet

Maximum

16,000 

3,620 

2,040 

2,190 

2,040 

1,760 

2,190 

3,020 

5,490 

13,200 

20,600 

15,800

20,600

Minimum

2,340 

2,040 

1,890 

2,040 

1,760 

1,510 

1,450 

1,630 

1,390 

1,340 

2,500 

3,830

1,340

Mean

5,510 

2,410 

2,000 

2,130 

1,900 

1,640 

1,630 

2,060 

2,200 

2,620 

7,470 

7,680

3,280

Kun-off in

acre-feet

339,000 

144,000 

123,000 

131,000 

106,000 

101,000 

96,800 

127,000 

131,000 

161,000 

460,000 

457,000

2,380,000

RIO GRANDE HEAR DEL RIO, TEX.

LOCATION. At international highway bridge between Del Rio, Val Verde 

County, Tex., and Villa Acuna, Coahuila, Mexico, 3.2 miles by road from 

court house in Del Rio and 12 miles below mouth of Devils River.

DRAINAGE AREA. Not measured. > RECORDS AVAILABLE. December 17, 1923, to September 30, 1926. A station 

was maintained 1 mile below mouth of Devils River from May 1, 1900, to 

April 30, 1915. A station was maintained at McKees Switch, 4% miles 

below mouth of Devils River, from December 1, 1919, to March 31, 1920. 

Relation between gages not known. Several springs but no tributaries of 

importance enter the river between present location and location 1 mile 

below Devils River.

GAGE. Vertical and inclined staff gage on left bank; read by T. N. McFarland.

DISCHARGE MEASUREMENTS. Made from cable 900 feet above low-water gage or 

from bridge.

CHANNEL AND CONTROL. Channel straight for half a mile above and 1,400 feet 

below station. Bed of solid rock .overlain by about 2 inches of. sand and 

gravel; permanent. Right bank at cable of sand and clay; not subject to over- 

'flow. Left bank of sand and clay, sodded with grass, heavily wooded with 

small trees and brush, and at a stage of about 13 feet subject to overflow for 

3,000 feet. Both banks subject to shift. Low-water control is rock ledge, 

partly covered with sand and gravel, 500 feet below gage; shifts. Highstage control indefinite.

EXTREMES OP DISCHARGE. Maximum discharge during year, from current-meter 

measurement, 25,100 second-feet August 26 (gage height, 7.70 feet) 5 minimum discharge, from current-meter measurement, 2,110 second-feet July 

7 (gage height, 2.20 feet).

1900-1915, 1919-20, 1923-1926: Highest stage recorded, at gage 1 mile 

below mouth of Devils River, 36.5 feet April 6, 1900. Highest stage at 

gage k% miles below mouth of Devils River, 41.0 feet in September, 1919 

(discharge not determined). Relation to present gage not known.

Highest stage on record occurred June 18 or 19, 1922, and reached a gage 

height by present datum of 32.8 feet, determined in 1924 by leveling to 

flood mark on Mexican bank pointed out by Mexican customs officer (discharge not determined). Minimum mean daily stage, 3.25 feet May 12, 

1904 (discharge, 1,120 second-feet).
BIO GRANDE BASIN 177

DIVERSIONS. Considerable water diverted in Colorado, New Mexico, Texas, and 

Mexico; amount not known.

REGULATION. Flow partly regulated by storage at Elephant Butte Dam, 120 

miles above El Paso, on Pecos River, and on Mexican tributaries.

ACCURACY. Stage-discharge relation not permanent. Rating curves well denned 

for all stages. Gage read to hundredths twice daily. Daily discharge determined by applying mean daily gage height to rating table (except from 

April 19 to July 18, when shifting-control method was used), or on days of 

, considerable fluctuations in stage, by averaging discharge for intervals of a 

day, using gage-height graph based on daily gage readings. Records good.

Discharge measurements of Rio Grande near Del Rio, Tex., during the year ending

September SO, 1926

Date

Oct. 9.. ........

Oct. 12 

Oct. 15... ...

Oct. 20.- _ -..-

Oct. 29. 

Nov. 8 .......

Nov. 13... ......

Dec. 3 ____ -.

Dec. 17.. .......

Dec. 23 __ -. ...

Jan. 13 

Jan. 27- 

Feb. 3 ... ....

Feb. 9 ... 

Gage 

height

Feet 

3.35

4.81

6.14

4.32

3.80

3.28

3.12

2.98

2.95

Z.89

2.92

2.94

2.92

2.89

2.90

2.87

Discharge

Sec.-ft. 

4,020

10,300

17,700

7,940

5,730

3,740

3,440

3,070

3,070

2,890'

3,060

3,070

2,980

2,970

2,930

9 73(1

Date

Mar. 5. ......

Apr. 7 .......

Apr. 13 ......

Apr. 23 

May 4..........

May 12 ..... .

 May 26- ....

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

July 14-........

Gage 

height

Feet 

2.80

2.79

2.76

2.60

2.68

2.99

2.65

2.75

2.56

 2.40

3.64

3.02

2.76

2.44

2.20

2.64

Discharge

Sec.-ft. 

2,670

2,620

2,640

2,300

2,220

3,310

2,700

2,840

2,550

2,190

5,370

3,680

3,010

2,440

2,110

2,870

Date

July 19 

July 26. ...

Aug. 1. 

Aug. 16 

Aug. 24.........

Aug. 25 

Aug. 28 

Aug. 30 .........

Sept. 2- 

Sept. 9.- 

Sept. 14.- 

Sept. 21- 

Oage 

height

Feet 

2.70

3.02

5.57

3.84

3.41

3.10

3.51

5.12

7.70

5.75

6.62

4.63

3.45

5.62

4.40

Discharge

Sec.-ft. 

2,930

3,630

14,300

5,990

4,810

3,960

5,020

12,500

25,100

14,900

18,900

9,830

5,010

15,000

8,320

Daily discharge, in second-feet, of Rio Grande near Del Rio, Tex., for the year ending

September 30, 1926

Day

1. -.

2 ... ....

3 

4 .. ..

5 .........

6 ...... .

7. ........

8 ....

9 .... .....

10 

11... ......

12 

13- ...

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

Oct.

4,870

4,560

4,270

4,270

4,270

3,990

3,990

3,990

4,270

4,870

6,990

9,480

7,770

7,770

14,600

13,400

6,990

R 9JA

6,240

7,770

9,900

Q dfifl

8,600

7,380

7,380

6,990

6,240

5,540

5,200

5,200

Nov.

4,870

4,560

4,560

4,270

4,270

4,270

3,990

3,990

3,720

3,720

3,720

3 460

3^460

S

Aftn

3,460

3

Aftf)

3,460

3

Aftf\

3,210

3,210

3,210

3,210

3,210

3,090

3,090

3,090

3,090

3,210

3,210

Dec.

3,090

3,210

3,210

3,210

3,210

3,090

3,090

3,090

3,090

3,090

3,090

3,090

3,090

9 o?n

9 o?n

2,970 9 o?n

2,970

9 Q7n

2,970

9 Q7n

2,970

2,970

2,970

2,970

2,970

2 Q7fi

2.970

9 Q7n

2,970

Jan.

3,090

3,210

3,210

3,090

3,090

3,090

3,090

3,210

3,090

9 o?n

2,970

9 Q7(l

2,970

3,090

3,090

3,090

3,090

3,090

2,970

9 O7fi

2,970

2,970

3,090

3,090

2,970

2,970

2,970

2,970

2,970

2,970

Feb.

2,970

2,970

2 O7n

9 Q7n

2,970

2,970

9 Q7<1

2,970

2,860

2,860

2.860

9 RAn

2,860

2 oaf)

2,860

2,740

2,740

2 7dn

2,740

2,740

2,740 9 7dn

2,740

2,740

2,740

2,740

2,740

9 74.n

Mar.

2,740

2,740

2,620

2,740

2,740

2,860

2,740

2,740

2,740

2,740

2,740

2,740

2,740

2,620

2,620

2,620

2,620

2,620

2,620

2,510

2,510

4,500

2,620

2,400

2,510

2 Afin

2,400

Apr.

2,290

2,290

2,400

2,290

2,290

2,290

2,290,

2,400

2,510

2,510

2,400

9 9Qn

2,290

2,180

2,180

2,180

9 9Qfl

2,310

7,700

5,830

4,820

3,380

3,140

2,910

2,400

11,100

May

3,380

2,910

9 7fift

2,700

3,410

2,910

2,910

9 01 n

2,910

9 O1 n

3,140 9 oin

2,700 9 om

2,910

2,700

2,700 9 finn

2,600

2,500

2,500

O KAfi

2,400

2,400

2,310

2,220

2,600

4,030

3,180

9 7ftft

3,570

June

2,910

2,910 9 om

2,600

5,540

7,020

6,950

6,190

5,480

5,140

4.21X)

4,210

3,920

3,920

3,650

3,650

3,920

5,070

6,300

3,650

5,730

4,210

3,140

2,910

2,910

2,600

2,500

2,400

2,310

July

2,220

2,220

9 99fl

2,220

2,220

2,140

*> lift

2,310

2,400

2,500

2,910

2 910

2,800

2 oin

2,910

2,700

3,140

3,380

2,910

2 7nn

2,910

3,140

7,400

6,190

3,920

3,380

3,100

4,820

4,210

3,650

Aug.

11,200

8, 610

6,560

7,350

8,610

6,950

5,830

5,480

5,480

4,210

3,920

4,210

3,920

3,650

4,680

3,920

3,380

3,920

4,210

3,380

3,650

4,820

5,140

5,690

12,400

22,500

14,100

15,300

19,200

18,800

15,300

Sept.

11,900

9.500

8,180

6,950

6,560

6,190

6,190

6,190

5,140

6,190

c OQrt

7.-360

12,800

14,300

14,800

13,800

12,400

10,400

9,050

8,610

8,610

7,350

6,560

6,190

6,190

5,830

5,480

5,140

5,140

5,480
178 SURFACE WATER SUPPLY, 1926, PART VIII

Monthly discharge of Rio Grande near Del Rio, Tex., for the year ending September

30, 1926

Month

October ___________________________ November... ___________ ..... ___ ..

December __ ________ .. ___________

January ___________________________

February . .. ____________________ .

March _ _________________________

AprU. .- _..-...__..._._......______________._____...

May ___. .-._._._.._____________..

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

August ___ ... _ .

The year.... ___ . __________ ___

Discharge in second-feet

Maximum

14,600 

4,870 

3,210 

3,210 

2,970 

4,500 

11,100 

4,030 

7,020 

7,400 

22,500 

14,800

22,500

Minimum

3,990 

3,090 

2,970 

2,970 

2,740 

2,400 

2,180 

2,220 

2,310 

2,140 

3,380 

5,140

2,140

Mean

6,720 

3,610 

3,040 

3,050 

2,840 

2,690 

3,300 

2,830 

4,120 

3,200 

7,950 

8,140

4,300

Run-off in 

acre-feet

413,000 

215,000 

187,000 

188,000 

157,000 

166,000 

196,000 

174,000 

245,000 

197,000 

489,000 

485,000

3,110,000

RIO GRANDE AT EAGLE PASS, TEX.

LOCATION. At international highway bridge between Eagle Pass, Maverick 

County, Tex., and Piedras Negras, Coahuila, Mexico, 1 mile above Southern 

Pacific Co.'s railroad bridge, and 4 miles by air line below mouth of Elm 

Creek.

DRAINAGE AREA. Not measured.

RECORDS AVAILABLE. November 26,1923, to September 30,1926; May 1,1900, to 

March 31, 1914; August 10, 1914, to April 30, 1916. United States Weather 

Bureau has obtained records of stage since January 1, 1901.

GAGE. Vertical staff on left bank.

DISCHARGE MEASUREMENTS. Made from highway or railroad bridge.

CHANNEL AND CONTROL. Bed of sand or limestone; fairly permanent. Channel 

straight for half a mile above and 1 mile below station. One channel at all 

stages. Banks of sand and clay, and subject to overflow for 600 feet on both 

sides of low-water channel at stage of 14 feet. Drift collecting on temporary 

highway bridge may cause change in stage-discharge relation. Control 

probably a gravel bar around an old steel highway-bridge span lying in river 

just below railroad bridge; shifts.

EXTREMES OP DISCHARGE. Maximum stage recorded during year, &46 feet at 

12.15 a. m. August 27 (discharge, 25,000 second-feet); minimum stage not 

determined.

1900-1916, 1923-1926: Maximum stage, 34.6 feet at midnight June 29, 

1905 (mean daily discharge, June 30, 1905, 238,000 second-feet); minimum 

mean daily discharge, 1,030 second-feet April 15, 1913.

DIVERSIONS. Considerable water is diverted in Colorado, New Mexico, Texas, 

and Mexico; amount not known.

REGULATION. Flow partly regulated by storage at Elephant Butte Dam, 120 

miles above El Paso, on Pecos River, and on Mexican tributaries.

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

for all stages. Gage read once daily to tenths, but gage readings not always 

accurate. Daily discharge ascertained by applying daily gage height to 

rating table or, on days of considerable fluctuation in stage, by averaging 

discharge for intervals of a day, using gage-height graph based on daily 

gage readings; shifting-control method used April 21 to September 3. Records 

poor.

COOPEBATION. Gage-height records furnished by United States Weather 

Bureau.
BIO GRANDE BASIN 179

Discharge measurements of Rio Grande at Eagle Pass, Tex., during the year ending

September SO, 1926

Date

Oct. 7... .......

Oct. 13...... 

Oct. 21.. .......

Oct. 27.... 

Nov. 7 ...... .

Dec. 2..........

Dec. 16 

Dec. 22 _ . _ ..

Jan. 12.........

Feb. 2 .

Gage 

height

Feet 

3.65

5.55

5.39

4.62

3.65

q AA

3.20

3.18

3.12

3.18

3.18

3.16

3 1ft

3.16

Discharge

Sec.-ft. 

4,670

10,700

10,300

7,520

4,550

3 OKA

3.420

3,420

3,270

3,490

% Ml\

3,240

3 OCA

3,250

Date

Feb. 12.........

Mar. 11 <_..

TV/far 9Q

Apr. 12 

Apr. 19 

Apr. 21 

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

May 11 .

A/TnT7 17

Gage 

height

Feet 

3.00 9 sn

2.90

2 ftfi

2.72

9 79

2.68

7.85

4. SO

3.35

3.35

3.90

A 99

3.61

Discharge

See.-ft. 

3,040

2,670

2.850

2.690

2,450

9 AQfi

2,390

16,800

7,240

3,840

4,050

5,210

6,730

4,840

Date

June 22 .........

Julys.. 

July 20.. -

July 27 

Aug. 11 

Aug. 17 

Aug. 27 

Sept. l.-.-

Sept. 13--.. .

Sept. 20 

Gage 

height

Feet 

3.31

2.90

2.60

2.92

2.93

3.35

5.60

3.54

3,32

7.06

5.95

4.26

5.36

4.88

Discharge

See.-ft. 

3,970

3,050

2,270

2.880

2,990

3,800

11,400

4,260

3,670

18,100

12,700

6,470

10,300

8,290

Daily discharge, in second-feet, of Rio Grande at Eagle Pass, Tex., for the year 

ending September 80, 1926

Day

1 

2 

3 

4 .... .

5 ...

6 ....

7 

8 ...... .

9 

10 

11. _ ...

12 '..

13. 

14 

15 

16. 

17 . 

18 

19 .

20. .

21. 

22 

23. 

24 

25 

26 

27. ..

28 ...

29 

80, .

31... .

Oct.

5,890

5,580

5,280 K OQA

4,990

4,710

4,710

4,440

4,440

4,710

7 ISrt

10,600

10,600

8,520

12,400

16,200

9 9ftft

7,510

7,180

7,510

10,300

8,910

7,520

1

6,040

Nov.

>6 

' 040

4,550

U,250

3,950

3,680

Dec.

3,680

3, .420

3,460

3,460

3,460

3,460

3,460

3,460

3

AOf\

3,460

q Afifi

3,460

3,240

3,240

3,240

? 9dn

3

*)Af\*

3,240

3,240

3 9Afi

3,240

3 ">At\

3,460

3,460

3,460

3,460

3,480

3,460

3,460

3,460

3,460

Jan.

S

AiKfi

3,460

3,4BD

3,460

3

Afif\

3,460

3 4«ft

3,460

3

AOf\

3

0.1A

3 240

3

OJA

3,240

3,240

o ojn

q OJA

^,240

3 OAfi

3,240

3 9JA

3,240

3 240

3,240

3,460

3

AC{f\

3,380

3,320

Feb.

3,320

3,250

3,140

3,040

 2,860

Mar.

kseo

2,670

2,760

9 aw

2,820

2,820

2 820

9 S9fl

2 820

2,630

2,630

2,630

9 fWA

2,630

2,820

2,820

3,030

3 Aon

4. IRA

3,240

2,820

2,630

2,630

2,630

Apr.

9 jftfl

9 iBft

2,450

2,450

2,450

2,450

2,450

2,450

0 OQA

9 9QO

9 9Ctf>

2,450

2,450

2,450

9 J.VI

9 J.Flrt

9 -AJt-fl

2,450

2,450

2,820

12,100

7,220

4,710

7,180

6,850

4. QQD

3,930

3 AQH

4,440

6,210

May

5,580

4,710

3,930

3,930

3,930

3,930

3,930

3,930

3,690

3,930

4,180

4,180

4,710

3,930

3,930

A. QQfl

5,580

4,440

4,180

3,240

3,240

S

ojn

3,030

2,820

3,030

Q nan

3.24D

3,930

3,030

3,240

June

3,930

3,240

3,460

q OAfl

4,080

7,840

7,510

6,530

6,210 f, son

5,890

4,710

4,440

4,710

4,710

4 440

4^180

4,180

5,280

K QQA

5,890

4 440

9^010

3,930

9 &9n

2,820

0 QOA

3

noA

3,030

2,820

July

3,030

2,450

% 290

2,630

2,290

2,290

2,290

2,290

2,290

2,450

2,450

3,030

3,240

2,820

3,030

2,820

2,820

2,820

3,460

3,030

2,820

^ nan

4,180

5,890

5,280

4,990

3,690

5,4«iO

9,000

>; asn

4,180

Aug.

4,180

10,000

7,180

6,530

7,180

7,840

6,210

4,990

4,710

3,930

4,180

3,930

3,930

3,690

3,690

4,990

5,020

5,500

4,440

4,440

3,690

4,180

4,990

4,990

6,860

17,000

18,300

8,530

15,800

16,900

14,400

Sept.

12,400

9,900

7,510

6,850

6,850

6,210

6,850

6,530

6,530

5,890

6,530

6,530

9,260

12,000

12,800

13,200

11,700

9,900

9,200

8,520

8,860

9,900

9,900

9,550

9,550

9,550

8,860

9,>900

9,900

9,900

NOTE. Mean daily discharge is result of current-meter measurements Oct. 21, 27, Nov. 7, 12, Dec. 2, 

Jan. 26, Feb. 2,12, Mar. 4 and 11. Braced figures show estimated mean discharge for periods indicated.
180 SUEFACE WATEE SUPPLY, 1926, PAET VIII

Monthly discharge of Rio Grande at Eagle Pass, Tex., for the year ending September

SO, 1926

Month

November... _____ . _.: ___________ .... ...

December- ------ ___ _ _ _ _ __

February...- ________________ , ________

April - _ _ _ .- ...............

July...-- ..-.-- - .-._ ___ -

August-....- _________________________

September - _________ ..........................

The year _________________________

Discharge in second-feet

Maximum

16,200

4,180 

12,100 

5,680 

9,010 

9,000 

18,300 

13,200

18,300

Minimum

4,440

3,240

2,290 

2,820 

2,820 

2,290 

3,690 

5,890

Mean

7,530 

4,270 

3,390 

3,340 

2,990 

2,850 

3,670 

3,860 

4,700 

3,470 

7,170 

9,030

4,700

Run-off in

acre-feet

463,000 

254,000 

209,000 

205,000 

166,000 

175,000 

219,000 

237,000 

280,000 

214,000 

441,000 

538,000

3, 400, 000

RIO GRANDE AT IAREDO, TEX.

LOCATION. At National Railways of Mexico bridge at Laredo, Webb County, 

1 mile above international highway bridge and 2 miles above mouth of 

Arroyo Chacon.

DRAINAGE ABBA. Not measured.

RECOBDS AVAILABLE. May 1, 1900, to March 31, 1914; November 1, 1922, 

to September 30, 1926. Records of stage have been obtained by United 

States Weather Bureau at international highway bridge since January 1, 

1901.

GAGE. Stevens continuous water-stage recorder at downstream side of left 

bridge abutment.

DISCHABGE MEAS'UBEMENTS. Made from cable 50 feet below gage.

CHANNEL AND CONTBOL. Channel straight for 1,000 feet above and below 

gage. Right bank of sand and silt; wooded for 25 feet from low-water 

edge and clean farther back; subject to overflow at a stage of about 10 

feet. Left bank of sand and silt; wooded with mesquite, grangeno, and 

willows; subject to overflow at a stage of 30 feet. Bed of sand; shifts. 

Control is stretch of channel; shifts.

EXTREMES OP DISCHABGE. Maximum mean daily stage for year, 18.24 feet 

April 22 (discharge, 75,000 second-feet); minimum mean daily stage, 3.50 

feet April 20 (discharge, 2,080 second-feet).

1900-1914, 1922-1926: Maximum stage recorded, 35.0 feet at 11 p. m. 

May 31, 1925 (discharge, about 205,000 second-feet); minimum mean daily 

discharge, 955 second-feet August 17, 1910.

The highest stage known was about 46 feet June 20, 1922 (datum of gage 

from November 1, 1922, to September, 1925; discharge not determined).

DIVERSIONS. Considerable water diverted in Colorado, New Mexico, Texas, 

and Mexico; amount not known.

REGULATION. Flow partly regulated by storage at Elephant Butte Dam, 120 

miles above El Paso, on Pecos River, and on Mexican tributaries.

ACCUBACY. Stage-discharge relation not permanent. Sixty-seven discharge 

measurements, ranging between 2,130 and 28,462 second-feet, were made 

from October 1 to June 30, and frequent measurements thereafter. Owing 

to shifting control, daily discharge is based on frequent discharge measurements.

COOPEBATION. Daily gage height and discharge furnished by Mexican section 

of International Boundary Commission.
RIO GRANDE BASIN 181

Daily discharge, in second-feet, oj Rio Grande at Laredo, Tex., for the year ending

September SO, 1926

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.

5,800

7 500

6,400

5,850

5,350

5,100

4,400

4,300

4,650

5,250

5,600

10,000

8,950

7,700

9,100

14,500

10,500

7,000

5,800

6,500

8,800

10,100

9,800

9,200

8,600

7,900

7,750

6,900

5,600

4,850

Nov.

5,200

4,900

5,200

5,300

6,100

5,400

5,100

4,500

4,250

4,200

4,200

3,975

3

Q7K

3,950

3,825

3,600

3,475

3,475

3,475

q qAfi

^ ^.fift

q qftft

3

qoe

3,325

3

OW1

Dec.

3 9ftf_

3 O7 PL

3,175

3,175

3,175

3,175

3,225

3,200

3,150

3,175

3,175

3,175

3,200

3,175

q 1 7K

3,175

3,175

3,175

3,175

3,175

3

17K

3,225

S

onn

3,275

3,875

3

QOK

3,900

3,800

Jan.

3

9AA

q OKft

3,225

3,200

3,200

3,575

q 4.7K

q qcn

q ooe

q I KA

3,075

q f\Kf\

q ACH

3,150

3,225

3,275

3,250

3,100

3,000

3,000

3,025

3

OOC

q oftft

3,175

3,150

3,075

3,100

Feb.

3 19*1

3 19*1

3,150

3,100

3,050

3 000

2*975

2

Q7K

2,825

2,825

2,850

2,825

2,850

2,800

2,775

2,825

9 77 1.

2

77K

2,700

2,650

2,575

2,575

2,575

9 O7PL

2,525

2,450

2,450

Mar.

2 400

0 _IOK

0 _IOK

2,450

9 Af>t\

2,425

2,475

q 7ftfi

3 1 5ft

3 1 5ft

3,000

9 Q75

9 ^.5fl

9 q5fi

9 ^_5ft

9 35ft

9 7ftft

2,775

9 4fift

2

qcn

9 .inn

9 ^_7f.

4,175

3,700

2,525

2,525

Apr.

2,450

9 .IPift

9 .i^n

3,075

9 75ft

2,425

5,500

3,400

3,350 9 ^nn

2,225

2,200

2,175

o 1 Krt

2,151

2,075

75,000

18,500

4,100

3,875

3,825

2,775

3,850

6,300

May

7 OOP;

8,075

8,200

10,500

9,800

7,900

7 cnfi

7,700

5,500

3,675

3,375

3,375

3,375

3 99*1

3,200

3 1 75

6,500

5,150

5,000

3,300

2,975

2,900

2,800

2,775

2,775

2,750

2,475

2,475

2,325

2,200

June

o O7K

3,850

3,775

3,500

3,275

2,800

3,075

4,675

6,000

5,550

3,825

3,225

3,150

3,100

3,650

3,650

4,025

4,300

6,275

3,800

5,975

8,000

6,025

4,675

4,225

4,100

3,075

2,975

3,200

3,975

July

3

Qoe

3

QAA

3,875

4,550

4,125

2,700

2,125

2,175

2,875

2,900

2,925

9 4flfl

3,500

5,000

3,425

3,275

2,850

2,875

3,100

3,150

3,150

3,275

3,250

3,600

5,475

5,850

5,000

5,150

5,350

3,700

3,825

Aug.

4,625

5,100

5,675

7,750

6,550

7,100

7,975

6,675

5,650

5,200

5,650

5,025

4,350

4,125

4,250

4,250

4,175

3,925

4,250

4,225

4,550

6,100

>6,075

6,475

8,200

7,825

17,000

18,400

13,700

15,500

17,500

Sept.

15,900

13,700

10,250

8,400

8,250

7,500

6,150

6,000

5,800

5,425

5,075

5,900

6,000

7,500

15,500

16,800

13,5dO

11,500

10,300

9,200

8,025

7,900

7,500

7,000

6,500

6,250

6,100

5,700

5,675

5,525

Monthly discharge of Rio Grande at Laredo, Tex., for the year ending September SO,

Month

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

December. . . J* " _ _ _ _ .". ....

March. ___________________________

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

Discharge in second-feet

Maximum

14,500 

6,100 

3,920 

3,580 

3,150 

4,180 

75,000 

10,500 

8,000 

5,850 

18,400 

16,800

75,000

Minimum

4,300 

3,250 

3,150 

3,000 

2,450 

2,350 

2,080 

2,200 

2,280 

2,120 

3,920 

5,080

2,080

Mean

7,230 

4,140 

3,280 

3,180 

2,810 

2,650 

6,490 

4,880 

4,130 

3,650 

7,350 

8,490

4,860

Eun-off in 

acre-feet

444,000 

246,000 

202,000 

196,000 

156,000 

163,000 

386,000 

300,000 

246,000 

225,000 

452,000 

505,000

3, 520, 000

BIO GEANDE HEAR BROWNSVILLE, TEX.

LOCATION. Opposite Matamoras, Tamaulipas, Mexico, at international railroad bridge 1 mile above Brownsville, Cameron County, and 20 miles in 

an air line above mouth of Rio Grande.

DRAINAGE AREA. Not measured.

RECORDS AVAILABLE. October 1, 1922, to September 30, 1926; April 29, 1900, 

to March 31, 1914 (discharge not computed).

GAGE. Stevens continuous water-stage recorder attached to pier of bridge.

DISCHARGE MEASUREMENTS. Made from cable near gage.
182 SURFACE WATER SUPPLY, 1926, PART VIII

CHANNEL AND CONTROL. Bed of sand; shifting. Channel straight for 500 feet 

above and 2,000 feet below station. Banks of sand and clay; subject to 

overflow at extremely high stages. Control of sand; shifts.

EXTREMES OP DISCHARGE. Maximum mean daily discharge during year, 29,000 

second-feet April 25; minimum mean daily discharge, 1,680 second-feet 

March 12.

1923-1926: Maximum mean daily discharge, that of April 25, 1926; 

minimum, 225 second-feet May 30, 1925.

DIVERSIONS. Considerable water diverted in Colorado, New Mexico, Texas, 

and Mexico; amount not known.

Between Roma and Brownsville there are many lagoons (old river channels) which take flow during moderate floods, and a large area is overflowed 

deeply in large floods. Much of this water returns slowly to the river as 

the floods subside, thus making the flow more uniform at Brownsville than 

at Roma. During extremely high stages large quantities also leave the 

river entirely, reaching the Gulf of Mexico by other channels.

REGULATION. Flow partly regulated by storage at Elephant Butte Dam, 120 

miles above El Paso.

ACCURACY. Stage-discharge relation not permanent. Seventy-five discharge 

measurements, ranging between 1,899 and 29,000 second-feet, were made 

from October 1 to June 30, and frequent measurements made thereafter. 

Daily discharge determined largely by measurements.

COOPERATION. Records furnished by Mexican section of International Boundary 

Commission.

Daily discharge, in second-feet, of Rio Grande near Brownsville, Tex., for the year 

ending September SO, 1926

Day

1 . .

2 

3 

A ...... 

5 .....

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.

21,800

22,000

20,700

21,300

21,000

19,500

16,200

13,000

11,400

10,500

10,000

9,950

9,500

9,200

11,200

12,700

13, 100

12,800

15,000

16, 700

12,600

9,700

8,300

8,100

10,300

11,700

11,500

11,600

11,400

10,500

10,200

Nov.

9,650

8,850

8,525

8,275

7,850

7,600

7,450

9,850

9,700

7.S25

6,600

5,800

5,550

5,300

5,175

5,050

5,025

5,000

4,900

4,950

4,725

4,450

4,175

4,300

4,200

4,200

4,375

Dec.

4,225

3,750

3,625

3,525

3,600

3,900

4,200

4,250

41,300

4,225

4,250

4,300

4,375

4,550

4,450

4

CA/1

4 650

4625

4,600

4,650

4,625

4 400

4,475

4,575

4,600

4,675 i 7*;n

Jan.

4,800

4 771

4,775

4 800

4,900

5,050

5,375

5 4.7*

5,225

5,550

5,100

5,075

4 900

4 800

A fiOK

4 fififl

4,500

4,350

4,275

4

0Cft

4,200

4,450

4,600

4,650

4

CAA

A AKt\

4,600

A 77K

Feb.

4,700

4,675

4,550

4 ^71

4,225

4,050

4,075

4,150

4,025

3,450

3,425

*> 4.AA

Q ann

0 7AA

3,125

3,100

3,100

0 ACA

3,075

o oen

9 Q71

9 ion

9 4.91

2 OCA

O OOK

O 4.CA

Mar.

2,800

2,225

2,025

1,850

1,875

2,100

O AfK

2,025

1,950

1,675

1,750

1 ft^ft

2

COC

3,275

3,475

3,600

3,750

3

QOC

3,800

3,775

3,600

3,525

3,675

3,800

3 9fifl

Apr.

3,375

3,550

3,425

3,250

3,225

2,850

2,625

2,325

2,200

2,275

2,450

2,800

2,425

2,375

3,000

O 1OC

2,775

2,700

2,700

2,350

1 517^

2,225

25,000

29,000

12,500

6,650

7,400

7,975

9,200

May

6,250

6,675

10,800

14,500

11,200

12,300

16,000

18,200

16,500

11,100

7,650

6,500

6,050

K G7K

6,900

6,600

5,225

4,950

4,625

5,250

7,050

6,150

4,350

0 ftOC

3,075

2,850.

2,775

2,775

June

2,625

2,600

2,675

2,675

3,600

4,825

6,800

6,500

5,575

5,200

5,725

6,850

7,000

6,300

5,700

4,150

3,525

3,100

3,' 200

2,950

4,500

18,000

22,400

14,300

Q 4.0ft

5,700

5,000

July

4,400

4,375

4,475

7,000

19,500

24,000

23,000

12,500

8,500

6,500

5,700

5,100

4,875

4,650

4,375

5

O9C

8,600

8,500

7,100

9,600

12,500

10,000

7 onn

6,350

5,475 7 oftft

8,800

6,800

5,600

Aug.

5,350

5,700

5,925

6,750

10,000

12,600

12,000

9,500

7,775

7,925

7,400

6,000

5,250

5,100

5,125

5,100

4,925

4,550

4,025

3,775

3,525

3,600

3,800

3,500

3,175

3,075 9 oirt

4,100

13,800

14,000

Sept.

10,750

14,300

16,000

15,200

12,200

11,000

10,900

8,300

A 825

5,550

5,150

5,050

4,900

4,725

4,175

3,950

6,200

12,200

13,500

12,800

11,300

9,500

7,600

6,850

6,300

6,700

7,100

6,425

5,600

7,750
BIO GRANDE BASIN 183

Monthly discharge of Rio Grande near Brownsville, Tex., for the year ending Sep*

tember SO, 1926

Month

February ______________________ _ . 

April.. -.-...- .-.-.._ _-.-.-- --.--.-. -

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

Discharge in second-feet

Maximum

22,000 

9,850 

4,750 

5,550 

4,700 

3,920 

29,000 

18,200 

22,400 

24,000 

14,000 

16,000

29,000

Minimum

8,100 

4,180 

3,520 

4,200 

2,220 

1,680 

1,880 

2,780 

2,600 

4,380 

2,920 

3,950

1,680

Mean

13,300 

6,160 

 4,350 

4,800 

3,470 

2,830 

5,340 

7,500 

6,200 

8,430 

6,230 

8,630

6,460

Run-off in

acre-feet

820,000 

367,000 

268,000 

295,000 

193,000 

174,000 

318,000 

461,000 

369,000 

519^000 

383,000 

513,000

4,680,000

BIO GBANDE SEEPAGE INVESTIGATION

' During this series of measurements the river was at a constant stage, and the 

measurements represent the natural conditions.

Discharge measurements to determine seepage on Rio Grande in February and

March, 1926

From Del Rio to Eagle Pass, Tex.

Date

Feb. 9

Mar. 2

3 

Feb. 10

Mar. 3 

Feb. 11 

Mar. 3 

Feb. 11 

12

12

Stream or diversion

San Felipe Creek. 

Sycamore Creek _

Pinto Creek.. ....

Las Moras Creek. 

Rio San Rodrigro.

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

Location

Gaging station near 

Del Rio. 

Near springs 5 miles 

above mouth. 

2 miles above mouth. . 

% mile above, BedellMoore pumping 

plant. 

1 mile above mouth _ 

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

-.-do.. .....

3 miles below Jimenez, 

Mexico, 

Oaging station at 

Eagle Pass.

Approximate 

distance 

from 

initial 

point, 

in miles

0 

3

12

14

21 

26 

32}^ 

40 

43

57

Discharge in second-feet

Main 

stream

2,730

2,830

3;-060 

3,040

Tributary

76 

1

6

77 

7 

27

Diversion

Gain or 

loss in 

section

+23

+113 

-20

Total 

gain or 

loss

+23

+136 

+116

From Eagle Pass to San Ygnacio, Tex.

Feb. 12

13

13

13

14

14

15

16

RioChico. _ . _ .

mingo.

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

 ..do.. ___ ....

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

Eagle Pass.

mouth of Rio Santo 

Domingo.

long series of islands 

and shoals.

mouth of San Ambrosia Creek.

0

3

11

12

19

29

41

55

3,040

2

AKA

2,980

3,000

2,970

2,870

71

 10

-161

+20

+20

-30

-100

-161

-141

-121

-151

-251

1 Estimated.
184 SURFACE WATER SUPPLY, 1926, PART VIII

Discharge measurements to determine seepage on Rio Grande in February and

March, 1926 Continued

From Eagle Pass to San Ygnacio, Tex. Continued

Date

Feb. 16

17

17

18 

18

18 

19 

19 

19 

20 

21 

21 

22 

22

Stream or diversion

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

- do.... -----

 doSeveral irrigation 

pumps.

- do-... 

Several irrigation 

pumps.

Several irrigation 

pumps.

 do--. 

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

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

Location

At head of island 2 

miles below San Lorenzo Creek. 

1 mile below Apache 

ranch. 

1 mile below Palafox. .

Between 99 and 111 

miles. 

3 miles southeast of 

Isletas. 

2H miles southeast of 

San Isabel. 

Between mile 111 and 

Laredo. 

At gaging station l}i 

miles above Laredo, 

Between Laredo and 

mile 193^. 

J-i mile below Santa 

Rosa ranch. 

1 mile southeast of Los 

Castios ranch. 

H mile below mouth of 

La Per la Creek.

Approximate 

distance' 

from 

initial 

point, 

in miles

67

77

89 

99

111 

116H

127H

139^ 

146 

157 

167

Discharge in second-feet

Main 

stream

2,990

2,880

2,970 

2,900

2,910 

2,790

2,760

2,750 

2,790 

2,760 

2,760

TributaryDiversion

-5

-5

-15

Gain or 

loss in 

section

+120

-110

+90 -70

+15 

-120

-25

+5 

+40 

-30 

0

Total 

gain or 

loss

-131

-241

-151 -221

-206 

-326

-351

-346 

-306 

-336 

-336

° Estimated.

NOTE. Assuming that the rate of evaporation was 60 inches a year, that the average velocity of the 

water was 1 mile an hour, and that the average width of the river was 500 feet, the loss due to evaporation 

would be approximately 0.4 second-foot per mile. If the evaporation loss were 0.4 second-foot per mile, the 

total gain due to seepage from Del Rio to Eagle Pass would be 116 + (0.4X57) = 139 second-feet, and the 

total loss from Eagle Pass to San Ygnacio would be 336 (0.4X167)=269 second-feet. Figures in columns 

headed "Gain or loss in section" and "Total gain or loss" computed from discharge of main stream and 

tributaries and diversions.

GOOSE CREEK AT WAGONWHEEL GAP, COIO.

LOCATION. In SE. % SW. % sec. 27, T. 40 N., R..1 E., at concrete dam of A. E. 

Humphreys's reservoir, 6 miles south of Wagonwheel G#p, Mineral County. 

Nearest tributary, Roaring Fork, enters just above reservoir.

DRAINAGE AREA. 49 square miles (measured on topographic map).

RECORDS AVAILABLE. October 1, 1924, to July 3, 1926, when station was discontinued.

GAGE. Vertical staff attached to upstream face of dam some distance from spillway; read by Roy Lees.

DISCHARGE MEASUREMENTS. Made by wading or from highway bridge just 

below dam.

CHANNEL AND CONTROL. Control is concrete spillway; permanent except for 

flow through valves in dam at rare intervals. A trash rack installed at 

control July 3, 1926, collects so much debris that gage heights are. not a 

true index of discharge.

EXTREMES OP DISCHARGE. Maximum stage recorded during year, 1.50 feet at 

5 p. my iJune 6 (discharge! 425 seco'nd-feet); minimum stage, 0.22 foot 

February 19 to March 20 (discharge, 25 second-feet).

1925-26: Maximum stage recorded, that of June 6, 1926; minimum 

stage, 0.08 foot November 29 to December 16,1925 (discharge, 8 second-feet).

ICE. Spillway kept open during winter,

REGULATION. Creek partly regulated by reservoir, which has capacity of 842 

second-feet.
RIO GRANDE BASIN 185

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

curve well defined. Gage read to hundredths twice daily. Daily discharge 

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

good.

COOPERATION. Base data furnished by State engineer and A. E. Humphreys.

The following discharge measurement was made:

July 27: Gage height (affected by backwater from trash racks), 1.13 feet; 

discharge, 45.8 second-feet.

Daily discharge, in second-feet, of Goose Creek near Wagonwheel Gap, Colo., for the 

year ending September SO, 1926

Day

2.- 

3-- 

^. ...........................

b. ................. ..........

K. ........................ ...

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

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

g.. ..........................

10-- 

11.- 

12. -

13-- 

14. ------------ --------------

15--- 

16--- 

17.- 

18-. 

19-- 

20-- . 

21.-. 

22

23--. I 

24.-- 

25--- 

26-- 

27-- 

28.. 

29--. 

30 .. 

31.-- 

Oct.

56

56

56

59

63

75

77

72

70

72

77

70

70

70

72

72

68

66

63

61

59

59

63

66

63

63

59

59

59

KQ

54

Nov.

52

52

54

56

59

59

59

61

59

59

54

52

52

52

52

50

50

50

50

49

47

50

50

49

49

49

49

49

49

Dec.

49

49

AQ

49

49

49

49

47

52

49

49

47

45

43

41

40

40

40

38

36

35

33

32

32

32

32

32

32

39

32

Jan.

32

32

32

32

32

32

32

32

32

32

30

30

30

30

30

29

29

29

28

28

28

28

28

28

28

Ofl

28

28

28

28

Feb.

28

28

28

26

26

26

26

26

26

26

26

26

26

26

26

26

26

26

25

25

25'

25

25

25

25

25

25

25

Mar.

25

25

25

25

25

25

25

25

25

25

25

25

25

25

25

25

25

25

25

25

26

26

26

26

26

26

26

26

26

26

26

Apr.

26

26

26

26

26

26

26

26

26

26

30

30

28

28

28

30

33

41

47

43

43

49

52

75

77

91

85

83

97

102

May

102

105

102

94

111

111

97

102

88

80

80

72

99

68

77

80

91

108

145

242

252

293

348

286

279

276

245

219

219

272

265

June

293

296

286

312

320

360

340

onn

332

344

336

320

282

276

252

235

219

167

177

164

164

151

138

138

138

132

120

114

Monthly discharge of Goose Creek near Wagonwheel Gap, Colo., for the year ending

September 30, 1926

Month

November.. ________________________

February.. . ________________________

May _____________________________

Jane. ______ _ _____________________

The period... ____________________

Discharge in second-feet

Maximum

77 

61 

52 

32 

28 

26 

102 

348 

360

Minimum

54 

47 

32 

28 

25 

25 

26 

72 

114

Mean

64.8 

52.4 

41.4 

29.7 

25.9 

25.4 

45.1 

162 

236

Run-off in 

acre-feet

3,980 

3,120 

2,550 

1,830 

1,440 

1,560 

2,680 

9,960 

14,000

41,100
186 SURFACE WATER SUPPLY, 1926, PART VIII

PECOS RIVER NEAR ANGELES, TEX.

LOCATION. In T. 26 S., R. 29 E., just below Pecos Valley Railroad bridge crossing 

Delaware Creek at its mouth, 2 miles north of New Mexico-Texas State line 

and 8% miles northwest of Angeles, Heeves County.

DRAINAGE AREA. Not measured.

RECORDS AVAILABLE. May 27, 1914, to September 30, 1926.

GAGE. Stevens continuous water-stage recorder at outcrop of rock on right 

bank 600 feet below railroad bridge and mouth of Delaware Creek; inspected 

by United States Geological Survey engineers or W. F. Gerlach.

DISCHARGE MEASUREMENTS. Made by wading or from cable half a mile downstream.

CHANNEL AND CONTROL. Bed and banks of sand, gravel, and rock; banks not 

subject to overflow. Control formed by a series of rapids 200 feet below 

gage; shifts.

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

recorder, 9.04 feet at 4.15 p. m. May 29 (discharge, 14,000 second-feet; 

determined from extension of curve and may be subject to error); minimum 

discharge, 80 second-feet at 7-8 a. m. April 13.

1914-1926: Maximum stage recorded, 21.5 feet at 10 a. m. August 8, 1916, 

measured by leveling from flood marks (discharge not determined); minimum 

discharge, 45 second-feet July 4-5, 1925.

ICE. Stage-discharge relation not seriously affected by ice; open-channel rating 

assumed applicable.

DIVERSIONS. Carlsbad project of United States Bureau of Reclamation, with 

reservoirs having a capacity of 58,500 acre-feet, diverts a large part of the 

natural run-off above Carlsbad, N. Mex. During season of irrigation considerable water is returned to stream by seepage from lands in vicinity of 

Carlsbad. In addition to water used by Carlsbad projects, some diversions 

are made for irrigation in basin above storage reservoir of project.

REGULATION. Operation of Carlsbad Electric Light & Power Co.'s water-power 

plant of 300-horsepower capacity above station, just below Carlsbad, 

N. Mex., does not materially regulate flow at gage. The flow is, however, 

regulated to a large extent by waters stored in reservoirs of the Carlsbad 

project. In the season of irrigation the effect of the regulation is decreased by 

return seepage waters; during winter the flow depends on water released at 

reservoirs.

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

from 50 to 10,000 second-feet. Operation of water-stage recorder satisfactory, except as indicated by breaks in record. Daily discharge determined 

by shifting-control method or, on days of considerable fluctuation in stage, 

by averaging discharge for intervals of a day, except as noted in footnote to 

table of daily discharge. Records fair.

Discharge measurements of Pecos River near Angeles, Tex., during the year ending

September 30,

Date

Oct. 14.. __

Nov. 12 .........

Gage 

height

Feet 

0.38

.55

Discharge

Sec.-ft.

277

353

Date

Feb. 17 ... ...

Apr. 4... .......

Gage 

height

Feet 

0.28 -.02

Discharge

Sec.-ft. 

173

111

Date

July 22.. ...,

Sept. 21 _ .....

Gage 

height

Feet 

. 0.22

.27

Discharge

Sec.-ft. 

186

180
RIO GRANDE BASIN 187

Daily discharge, in second-feet, of Pecos River near Angeles, Tex., for the year ending

September 30, 1926

Day

1 ... .....

2 

3 .... .....

4 ......

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

6,..... ......

7 

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

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

10 

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

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

13. . .

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

15 

16 

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

18 

19 

20 

21 

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

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

24- . ...

26. ..

26 

27 _____ ---.-.

28. . 

29 

30 

31 

Oct.

362

333

328

307

307

339

366

333

302

286

276

276

281

291

286

291

297

317

297

333

312

272

297

333

366

362

368

362

366

366

346

Nov.

360

360

350

350

339

339

333

333

350

350

342

333

339

339

350

345

356

345

356

366

350

Dec.

350

345

345

345

328

333

328

328

317

D10

307

302

312

307

302

9Q1

9Q1

291

286

307

286

286

286

281

276

281

281

281

276

281

Jan.

276

97ft

276

276

272

263

263

258

258

253

258

253

253

253

253

258

94Q

258

258

258

258

258

268

258

253

Feb.

249

240

235

223

207

OAO

199

176

165

165

172

165

1 ^7

157

1 f(d

141

138

135

135

128

Mar.

131

135

1OT

135

131

135

138

267

263

94.Q

oco

227

219

91 P;

91 1

1QQ

187

176

161

151

144

144

131

128

125

Apr.

11Q

114

111

103

92

' S7

Q4

100

94

]38

90

82

87

Q9

Q9

Q9

Q4

105

117

108

111

126

128

114

131

154

June

144

1,760

667

328

204

135

149

144

144

187

440

383

728

584

A^fi

401

373

302

281

272

2,390

3,050

5,370

4,230

4,650

July

2,340

CQQ

1,270

810

1,130

1,820

983

550

1,120

1,770

1,520

266

501

526

972

892

261

128

131

131

234

240

240

253

235

195

168

151

119

July

114

108

103

125

10C

128

111

108

2,310

1,640

805

1,720

1,200

1,940

422

195

180

180

187

152

141

153

278

286

203

172

' 403

2,570

Aug.

686

O10

368

333

268

198

1 ^7

151

147

1 180

215

199

165

144

144

188

248

215

215

215

211

199

216

Sept.

157

157

1 t\d

165

168

364

299

1,590

452

223

332

391

438

.841

549

292

199

180

180.

197

199

211

222

288.

374 849-

416

436

NOTE. Discharge partly estimated Nov. 21, May 5^9, June 1-4,12-13,18-20, July 18-22, Aug. 1-4, Sept* 

12 and 18-21. Braced figures show estimated mean discharge for periods indicated.

Monthly discharge of Pecos River near Angeles, Tex., for the year ending September

30, 1926

Month

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

Discharge in second-feet

Maximum

368

350 

276 

249 

267 

165 

5,370 

2,340 

3,180 

686 

1,590

5,370

Minimum

272

276 

249 

128 

125 

82 

135 

119 

103

154

82

Mean

320 

345 

304 

261 

184 

171 

110 

948 

669 

628 

220 

362

378

Run-off in 

acre-feet

19,700 

20,500 

18,700 

16,000 

10,200 

10,500 

6,550 

58,300 

39,800 

38,600 

13, 500 

21,500

274,000

PECOS RIVER NEAR POETERVILLE, TEX.

LOCATION. At highway bridge on Pecos-Porterville road half a mile east of 

Arno station on Atchison, Topeka & Santa Fe Railway, 2 miles west of 

Pprterville, Loving County, and 20 miles north of Pecos.

DRAINAGE AREA. Not measured.

96272 30 13
188 SURFACE WATER SUPPLY, 1926, PART VIII

RECORDS AVAILABLE. February 1, 1922, to July 18, 1926, when station was 

discontinued.

GAGE. Chain gage attached to downstream side of highway bridge; read by 

Tom Wright.

DISCHARGE MEASUREMENTS. Made from bridge or by wading.

CHANNEL AND CONTROL. Bed of silt, sand, and gravel; shifts.

EXTREMES OP DISCHARGE. Maximum stage during period from graph drawn 

from gage readings, 11.8 feet at 4 p. m. May 30 (discharge, 5,140 secondfeet) ; minimum discharge, 63 second-feet at 3.40 p. m. April 9.

1922-1926: Maximum stage recorded, 12.70 feet at 11 a. m. August 12, 

1925 (discharge, 5,690 second-feet); minimum discharge, 20 second-feet July 

25, 1925.

DIVERSIONS. The Carlsbad project of the United States Bureau of Reclamation, 

with reservoir having a capacity of 58,500 acre-feet, diverts a large part of 

the natural run-off above Carlsbad, N. Mex. During the season of irrigation considerable water is returned to the stream by seepage from lands in 

the vicinity of Carlsbad. In addition to the water used by the Carlsbad 

project, some diversions are made for irrigation in the basin above the storage 

reservoir of the project.

REGULATION. The operation of the Carlsbad Electric Light & Power Co.'s 

water-power plant of 300-horsepower capacity, above the station, just below 

Carlsbad, N. Mex., does not materially regulate the flow at gage. The flow 

is, however, regulated to a large extent by water stored in the reservoir of 

the Carlsbad project. In the season of irrigation the effect of the regulation 

is decreased by return seepage waters, but during winter the flow depends 

on water released at the reservoir.

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

for all stages. Gage read to hundredths once daily. Daily discharge determined by shifting-control method or, on days of considerable fluctuation 

in stage, by averaging discharge for intervals of a day, using gage-height 

graph based on daily gage readings, except as noted in footnote to table of 

daily discharge. Records fair.

Discharge measurements of Pecos River near Porterville, Tex., during the year ending

September 30, 1926

Date

Oct. 13.. ___

Oct. 31-.. 

Gage 

height

Feet 

1.38

1.54

Discharge

Sec.-ft. 

285

363

Date

Feb. 17. 

Gage 

height

Feet 

0.62

.58

Discharge

Sec.-ft. 

169

158

Date

July 17.. 

July 18... ......

Gage 

height

Feet 

7.84

3.60

Discharge

Sec.-ft. 

2,770

887

Daily discharge, in second-feet, of Pecos River near Porterville, Tex., for the year 

ending September 30, 1926

Day

1 __ . _ ............

2 - _ - .-

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

4 .. _ - .-. -

6 _ 

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

8- _ .-.. .-.

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

10. ____ ............

Oct.

393

370

348

326

304

304

326

348

348

326

Nov.

370

370

370

370

348

348

348

337

326

326

Dec.

326

326

326

qoft

326

00 ft

326

326

Jan.

09 a

326

326

304

326

326

326

326

Feb.

326

326

304

304

orw

304

283

304

304

Mar.

172

163

163

154

163

163

163

163

163

154

Apr.

172

172

154

145

136

117

99

84

70

122

May

172

158

144

144

1,240

465

304

242

202

172

June

3,160

1,120

1,090

1,540

986

733

638

701

836

1,110

July

182

163

154

144

133

97

192

144

172

154
EIO GRANDE BAbIN 189

Daily discharge, in second-feet, of Pecos River near Porterville, Tex., for the year 

ending September 30, 1926 Continued

Day

11- __ . _ 

12 . 

TO

14 

15. _ - __ _ 

16 __ -

17 __

18. _

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 -

Oct.

294

262

294

283

272

262

272

283

294

304

304

304

272

294

321

348

348

370

348

348

370

Nov.

348

348

348

326

348

370

370

370

348

348

326

326

326

304

326

326

326

326

326

326

Dec.

326

326

326

326

348

348

348

348

326

326

326

326

304

326

326

326

315

304

304

304

304

Jan.

326

326

326

326

304

304

304

304

304

304

304

304

326

326

326

326

304

326

326

326

326

Feb.

283

283

272

262

252

242

182

154

154

154

154

154

154

154

172

172

172

172

Mar.

144

154

163

222

283

283

252

283

272

242

202

182

172

144

172

163

192

187

182

172

154

Apr.

210

102

117

83

74

81

77

78

81

88

92

110

99

99

94

88

114

140

106

136

May

163

202

182

163

182

192

313

304

558

494

442

417

417

417

304

348

252

2,100

3,580

4,890

4,110

June

1,480

733

608

521

521

417

708

808

468

370

304

202

262

262

262

283

268

252

232

202

July

280

1,970

1,270

1,320

910

1,480

2,470

1,080

NOTE. Discharge interpolated Oct. 4, 11, 18, 25, Nov. 1, 8,15, 22, 29, Dec. 6,13, 20, 27, Jan. 3,10, 17, 24, 

31, Feb. 7, 14, 21, 28, Mar. 7, 28, Apr. 4,18, 25, May 2, June 27, July 4.

Monthly discharge of Pecos River near Porterville, Tex., for the year ending September 30, 1926

Month

April 

July 1-18 

The period .... __ . __________

Discharge in second-feet

Maximum

393 

370 

348 

326 

326 

283 

210 

4,890 

3,160 

2,470

Minimum

262 

304 

304 

304 

154 

144 

70 

144 

202 

97

Mean

317 

342 

325 

319 

236 

188 

111 

751 

703 

684

Run-off in 

acre-feet

19,500 

20,400 

20, 000 

19,600 

13, 100 

11,600 

6,620 

46, 200 

41,800 

24,400

223,000

PECOS RIVER ABOVE BARSTOW, TEX.

LOCATION. 400 feet below dam and diversion of Barstow Canal (Ward County

Irrigation District No. 1), and 10 miles northwest of Barstow, Ward County. 

DRAINAGE AREA. Not measured. 

RECORDS AVAILABLE. February 1, 1916, to May 11, 1921; and March 22, 1922,

to July 16, 1926, when station was discontinued. 

GAGE. Stevens continuous or Au fuzee recorder on left bank; attended by United

States Geological Survey engineers. 

DISCHARGE MEASUREMENTS. Made by wading, from cable near gage, or from

Texas & Pacific Railway bridge near Pecos. 

CHANNEL AND CONTROL. Channel straight for several hundred feet above and

below station. Bed of rock; permanent. Banks of silt and sand; shift;

subject to overflow $t extremely high stages. Low-water control is rock

ledge 150 feet below gage; permanent. Point of zero flow is 1.27 feet.
190 SURFACE WATER SUPPLY, 1926, PART VIII

EXTREMES OP DISCHARGE. Maximum stage during period, from water-stage 

recorder, 8.71 feet at 5 a. m. June 11 (discharge, 3,960 second-feet); mini- 

' mum stage not determined.

1915-1926: Maximum stage, from water-stage recorder, .12.1 feet (by 

datum of former location) at 6 a. m. August 10, 1916 (discharge not determined) ; minimum discharge, 0.2 second-foot April 27-29, June 25 to July 10, 

July 13-20, and July 24 to August 21, 1923.

DIVERSIONS. In addition to water diverted in New Mexico by the Carlsbad 

Project, the three principal diversions in Texas are the Farmers Independent, 

Cedarvale (formerly Biggs), and Barstow Canals. Small amounts diverted 

by Boxley and Porterville irrigation systems. According to records of the 

Board of Water Engineers for the State of Texas, these projects have declared a total of 17,500 acres irrigated.

REGULATION. Flow during low and medium stages regulated by storage reservoir on Carlsbad project in New Mexico and by diversion dams in Texas. 

Flood flow partly regulated by reservoirs on Carlsbad project.

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

below 1,000 second-feet and fairly well defined from 1,000 to 3,500 secondfeet. Operation of water-stage recorder not satisfactory. Daily discharge 

determined by shifting-control method or, on days of considerable fluctuation in stage, by averaging discharge for intervals of a day. Records fair.

Discharge measurements of Pecos River above Barstow, Tey., during the year ending

September SO, 1926

Date

Feb. 16 

Gage 

height

Feet 

3.17

2.34

Discharge

Sec.-ft.

OK7

47.7

Date

July 16 

Gage 

height

Feet 

1.80

3.76

Dis- 

. charge

Sec.-ft. 

3.38

604

Daily discharge, in second-feet, of Pecos River above Barstow, Tex., for the year 

ending September SO, 1926

Day

1 _ . ... 

2 

3 

4 

5.. . . _. ___ . ___

6 

7 

8 

9 

10. 

11....... . .... »_-. 

12 __ ._ ___________ --- 

13. 

14... - . ...... ...

15 . , 

16 

17. 

18 

19 

20 

21 

22 

23 

24... 

25.... ... 

26... . __ ..

27... ..

28.. 

29..... 

30 

31 ___ ___ ..

Oct.

343

330

313

301

OQA

278

263

252

241

234

228

221

215

208

202

196

186

177

174

ion

221

183

193

212

222

Nov.

' 222

231

234

240

241

241

Dec.

127

146

135

122

174

163

97Q

245

165

160

231

190

154

151

168

154

125

113

Jan.

102

102

90

183

190

218

151

163

168

168

143

165

160

133

149

Feb.

63

23

8.5

8.0

8.5

8.5

8.0

8.0

9.0

9.0

9.0

9.5

10

Mar.

8.0

6.0

6.0

6.0

5.6

6.0

6.0

5.6

5.6

5.6

5.6

5.3

5.3

5.3

142

46

5.6

5.6

15

81

32

5.0

4.2

35

11

38

31

4.1

3.2

3.6

3.6

Apr.

3.9

3.6

3.6

3.6

3.6

2.8

2.8

2.2

2.0

1.7

35

53

21

28

13

1.5

1.4

1.5

1.5

1.5

1.5

1.5

1.7

1.7

1.5

1.4

1.4

1.1

1.2

1.1

May

0.9

.9

.9

.9

916

294

42

29

186

338

304

168

294

585

265

176

200

115

2,100

2,420

3,360 '

3,700

June

3,620

1,660

1,200

1,850

1 IQft

1,550

1,100

800

NOTE. No record for periods when discharge is not given. Discharge partly estimated Nov. 10,15, Dec* 

14, Jan. 14,28-30, Feb. 16, and June 8. Braced figures show estimated mean discharge for periods indicated.
EIO GEANDB BASIN 19!

Monthly discharge of Pecos River above Barstow, Tex., for the year ending

September 30, 1926

Month

February 16-28 ________ __________ ......

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

Discharge in second-feet

Maximum

343

279 

63 

142 

53

3,620

Minimum

174

113 

8.0 

3.2 

1.1

800

Mean

231 

228 

167 

14.0 

17.7 

6.71

1,620

Run-off in 

acre-feet

14,200 

6,780 

5,950 

361 

1,090 

399

25,700

PECOS RIVER NEAR GRANDFALLS, TEX.

LOCATION. At site of old highway bridge where Grandfalls-Fort Stockton road 

formerly crossed Pecos River, \% miles upstream from present GrandfallsFort Stockton road crossing at iron bridge, 2 miles below diversion dam for 

low-line (silt-line) canal of Imperial Irrigation Co., 3 miles south of Grandfalls, 

Ward County, and 4% miles-above diversion dam of Zimmerman project.

DRAINAGE AKEA. Not measured.

RECOKDS AVAILABLE. November 6, 1915, to July 19, 1926, when station was 

discontinued. At iron bridge -\% miles downstream from November 6, 1915, 

to August 3, 1917. Discharge at both points believed to be comparable.

GAGE. Stevens water-stage recorder on downstream side of old bridge pier near 

left bank; inspected by United States Geological Survey engineers.

DISCHAKGE MEASUREMENTS. Made by wading, from cable 50 feet above, or 

during extremely high stages at iron bridge.

CHANNEL AND CONTROL. Bed rough, solid rock, and permanent, except for 

small deposits of sand and gravel. Channel straight for 100 feet above and 

below station. One channel below gage height of 8 feet; above this stage 

banks, which are of dirt and wooded, are overflowed. Rock ledge extending 

diagonally across stream just below gage serves as low-water control; shifts, 

owing to clogging of crevices.

EXTREMES OF DISCHARGE. 1915-1926: Maximum stage, from water-stage recorder, 

9.6 feet from 2 to 6 a. m. September 25, 1919 (discharge, 13,000 second-feet); 

minimum discharge, less than 0.5 second-foot for several periods in 1925.

DIVERSIONS. Station is 2 miles below diversion of low-line (silt-line) canal of 

Imperial Irrigation Co., 18% miles below diversion for Imperial Reservoir 

(capacity, 17,000 acre-feet), 25% miles below diversion for Ward County 

Water Improvement District No. 2 (of which the old Grandfalls project is a 

part), and 4% miles above diversion for Zimmerman project. Available data 

show that tracts aggregating about 143,000 acres are irrigable between station 

and lower limits of Carlsbad project of United States Bureau of Reclamation. 

Records of the Board of Water Engineers for the State of Texas show about 

58,000 acres declared irrigated in Texas above station. The effect of diversions is somewhat counterbalanced by water returned to stream by seepage. 

The only diversion of importance below the station is that for the Zimmerman project, which has declared an irrigated area of 2,005 acres.

REGULATION. Slight regulatory effect caused by operation of storage reservoirs 

On Carlsbad project.
192 SUEFACE WATEE SUPPLY, 1926, PAET VIII

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

for all stages during period. Operation of water-stage recorder not satisfactory owing to improper attendance. Daily discharge determined by shiftingcontrol method or, on days of considerable fluctuation in stage, by averaging 

discharge for intervals of a day. Records fair.

Discharge measurements of Pecos River near Grandfalls, Tex., during the year ending

September 80, 1926

Date

Oct. 17.........

Oct. 28..... _ .

Gage 

height

Feet 

0.32

.34

Discharge

Sec.-ft. 

"O.SO ".SO

Date

Feb. 19... ...

Gage 

height

Feet 

0.34

.78

Discharge

Sec.-ft.

52

Date

July 19 .

Gage

height

Feet 

3.11

Discharge

Sec.-ft: 

926

1 Estimated.

Daily discharge, in second-feet, of Pecos River near Grandfalls, Tex., for the year 

ending September SO, 1926

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.

IQfi

.9

1.1

.7

.7

.5

.7

.9

.5

.5

.5

Nov.

168

168

168

1 154

139

138

136

162

168

150

162

174

Dec. '

187

174

148

165

159

159

104

48

41

33

28

27

27

26

31

28

27

27

26

26

31

40

26

23

33

26

22

21

21

15

Jan.

2.8

2.1

1.8

1.5

1.8

3.1

5.3

26

38

40

27

24

19

11

2.8

8.8

57

69

92

104

73

84

102

75

96

122

120

102

73

64

57

Feb.

77

86

73

31

18

12

13

21

27

16

12

23

28

9.8

19

7.6

44

3.4

2.8

2.8

2.5

2.5

2.1

2.1

1.5

1.5

1.5

1.5

Mar.

1.5

1.5

1.5

1.8

1.8

1.8

1.5

1.5

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

4.1

4.4

12

187

114

57

84

75

89

66

60

69

69

Apr.

73

71

62

60

60

57

57

58

60

58

51

48

41

44

43

41

29

7.6

5.3

4.4

4.4

4.4

6.4

13

13

NOTE. No record for days when discharge is not published. Discharge partly estimated or interpolated 

Nov. 17-19, 23-25. Braced figures show estimated mean discharge for periods indicated.

Monthly discharge of Pecos River near Grandfalls, Tex., for the year ending

September SO, 1926

Month

November 17-30. _______ 

March _____________________________ .

April 1-25. _ . _ ....... __ .. ____ . ______ -- 

Discharge in second-feet

Maximum

174 

187 

122 

86 

187 

73

Minimum

136 

15 

1.5 

1.5 

1.5 

4.4

Mean

157 

61.7 

48.5 

17.9 

29.7 

38.9

Run-off in 

acre-feet

4,356 

3,800 

2,990 

996 

1,830 

1,930
RIO GKANDE BASIN 193

PECOS RIVER NBAS BUENA VISTA, TEX.

LOCATION. At highway bridge on Fort Stockton-Midland road 4% miles east

of Buena Vista, Pecos County. 

DRAINAGE AREA. Not measured. 

RECORDS AVAILABLE. December 5, 1921, to July 19, 1926, when station was

discontinued. 

GAGE. Stevens continuous water-stage recorder attached to downstream side of

left abutment of bridge.

DISCHARGE MEASUREMENTS. Made from bridge or by wading. 

CHANNEL AND CONTROL. Bed of silt, sand, and gravel; shifts. Banks subject

to overflow during extremely high stages. 

EXTREMES OF DISCHARGE. 1921-1926: Maximum stage, 7.77 feet at 2 a. m.'

October 19, 1923 (discharge, 2,640 second-feet); minimum discharge, 6.5

second-feet July 27, 1925.

DIVERSIONS. Station is below all diversions. During much of the time practically the only flow past the station is waste and seepage water from the

irrigated area above gage. 

REGULATION. Flow regulated by storage and diversion dams in New Mexico

and Texas. 

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

for all stages. Operation of water-stage recorder not satisfactory. Daily

discharge determined by shifting-control method or, on days of considerable

fluctuation in stage, by averaging discharge for intervals of a day. Records

fair.

Discharge measurements of Pecos River near Buena Vista, Tex., during the year 

ending September SO, 1926

Date

Nov. 17 . _____ ... ____

Feb. 19. ._ . _.__.

Qage 

height

Feet 

0.98

.93

Discharge

Sec.-ft. "116

112

Date

July 19.......................

Qage 

height

Feet 

0.48

3.44

Discharge

Sec.-ft. 

37.2

778

Daily discharge, in second-feet, of Pecos River near Buena Vista, Tex., for the year 

ending September SO, 1926

Day

1 _ . ___________________

2. __________ . _ ... __ . __ -

3, _ . ____ ..... _ . _______

4 ______________________

5..... -- . . .._. __ -

6...... .- .-.... ._ 

7. _____ ..... __ .... ____ 

8. ____ ._ __ . _ ..... __ ..... ....

9. ___ , __ . ____ ............ __

10 __ . _ . _ . _ . __ - _ ...........

11.. ___ .... __ ..... _ ... _ ,.-..-

12.... ....... _ ..... __ ..._ 

13. .. 

14. _ ... _ . ________ ............

15. . 

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

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

18.. _ . __ ._. _ _____ 

19 . . __

20 

Oct.

193

139

108

103

101

101

103

90

97

139

121

139

106

104

110

113

110

110

112

115

Nov.

122

124

133

137

135

144

140

133

139

101

96

104

135

140

140

142

121

115

110

108

Dec.

193

211

182

176

201

201

199

197

133

on

85

85

84

84

82

80

80

79

77

75

Jan.

85

85

85

85

85

87

Feb.

133

137

135

128

130

122

112

115

112

113

113

97

Mar. Apr.

38

35

43

57

60

59

54

51

41

38

38

38

38

38

46

May

36

36

36

36

36

38

218

306

135

108

74

57

51

51

52

80

87

89

115

121
194 SURFACE WATER SUPPLY, 1926, PART VIII

Daily discharge, in second-feet, of Pecos River near Buena Vista, T 'ex., for the year 

ending September 80, 1926 Continued

Day

21.- .. . . .

22 

23 

24 

25 

26 ........

27 

28 - .

,29. 

30 

31 .

Oct.

121

121

121

} 116

113

117

119

122

Nov.

IfiO

187

182

176

168

178

187

187

182

201

Dec.

77

77

79

79

79

79

79

80

80

82

84

Jan. Feb.

96

90

87

87

87

87

Mar.

87

' Apr.

44

36

36

35

35

35

35

35

35

35

May

124

117

103

124

NOTE. No record for days for which discharge is not given. Discharge partly estimated Oct. 28, Jan. 

6, Feb. 9, Mar. 23, and Apr. 6. Braced figures show estimated mean discharge for periods indicated.

Monthly discharge of Pecos River near Buena Vista, Tex., for the year ending

September 30, 1926

Month

November.. __________________________

December _ ___ ___ __ .. .....

February 9-26. _____________

March 23 ___________ _________ . .. .

April 5-30-- 

May 1-24 - . _ .... __ - .... - .

Discharge in second-feet

Maximum

193 

201 

211

60 

306

Minimum

90 

96 

75

35 

36

Mean

117 

144 

112 

85.3 

110 

87 

41.4 

,92.9

Run-off in 

acre-feet

7,180 

8,590 

6,880 

1,020 

3,930 

173 

2,050 

4,420

PECOS RIVER NEAR COMSTOCK, TEX.

LOCATION. At Pecos High Bridge of Galveston, Harrisburg & San Antonio 

Railway, 12 miles northwest of Comstock, Val Verde County, and 5^ miles 

above confluence with Rio Grande; below all tributaries.

DRAINAGE AREA. Not measured.

RECORDS AVAILABLE. May 1, 1900, to September 30, 1926; also gage heights 

for 1898.

GAGE. Vertical staff attached to downstream side of bridge pier on left bank; 

read by J. R. Hutchins.

DISCHARGE MEASUREMENTS. Made from cable 1,000 feet above bridge.

CHANNEL AND CONTROL. Bed and banks composed of rock and gravel. Water 

flows through a series of rapids and pools in a canyon approximately 300 feet 

deep. Banks not subject to overflow. Stage-discharge relation at low stages 

changes slightly.

EXTREMES OP DISCHARGE. Maximum stage during year, 5.20 feet at 1 p. m. 

July 23 (discharge, 4,380 second-feet); minimum stage, 0.18 foot September 

15 and 17 (discharge, 179 second-feet).

1900-1926: Maximum stage recorded, 35.75 feet April 6, 1900 (discharge 

not determined) minimum discharge recorded, 106 second-feet July 29 to 

August 1, 1918.

DIVERSIONS. Considerable water is diverted and stored above station for irrigation. Lakes McMillan and Avalon of Carlsbad project of United States 

Bureau of Reclamation, with a combined capacity of 58,500 acre-feet, are 

on Pecos River a few miles above Carlsbad, N. Mex. In addition to water 

stored in New Mexico, water from Pecos River is used to irrigate large areas
EIO GRANDE BASIN 195

of land near Barstow and Grandfalls, Tex. No diversions below station. 

Return waters tend to equalize effects of diversions in lower part of drainage 

basin.

REGULATION. Flow partly controlled by storage and diversions for irrigation 

above station. No water-power plants of any importance operated in 

drainage basin, except a public-utility plant of about 300 horsepower near 

Carlsbad, N, Mex.

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

for all stages. Gage read to hundredths twice daily and oftener during 

floods. Daily discharge determined by shifting-control method or, on days 

of considerable fluctuation in stage, by averaging discharge for intervals of 

a day, using gage-height graph based on daily gage readings. Records good.

Discharge measurements of Pecos River near Comstock, Tex., during the year ending

September 30, 1926

Date

Oct. 5. .... .

Oct. 19-.. ...

Nov. 5 _

Dec. 18.--. ...

Jan. 28 ___ -.

Mar. 10 ......

Gage 

height

Feet 

0.78

.84

.72

.83

.64

.56

.58

.52

Discharge

Sec.-ft. 

417

404

362

422

326

313

318

292

Date

Mar. 27 

May 21 .....

Do.. ....

Gage 

height

Feet 

0.86

.38

.48

.48

.30

.61

2.07

2.23

Discharge

Sec.-ft. 

442

227

262

253

209

275

1,180

1,260

Date

June 21- .......

July 13.. __

July 22- ........

Aug. 19 

Sept. 16------.-

Gage 

height

Feet 

3.86

1.20

.37

1.04

.30

.22

 .20

Discharge

Sec.-ft. 

2,720

604

233

507

204

189

184

Daily discharge, in second-feet, of Pecos River near Comstock, Tex., for the year ending

September 30, 1926

Day

1 .... ..... .

2 ... .... ...

3. _ .

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

5 ...... 

6... ...

7 .... ... ...

8 ... .

9 

10 

11 _____ ......

12 

13. 

14 .

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

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

17 

18 ___

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

20 . 

21 

22 

23 

24.. ___ ........

25 

26 

27 _ .....

28

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

30 

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

Oct.

494

925

570

493

421

444

421

399

399

544

544

598

625

598

570

698

598

468

399

399

399

377

377

421

444

399

377

377

356

356

356

Nov.

377

377

356

356

356

356

356

356

356

356

356

377

356

356

356

336

317

317

336

377

356

356

356

356

336

336

336

336

377

399

Dec.

421

421

399

399

421

399

421

421

399

421

421

421

444

421

' 377

336

336

317

317

317

317

317

298

298

298

298

317

298

317

317

317

Jan.

317

317

317

317

317

317

317

317

317

317

317

317

298

298

298

298

317

317

317

317

317

317

317

336

356

356

336

317

336

356

336

Feb.

336

336

336

336

336

336

336

356

356

336

317

317

317

317

298

298

298

298

298

298

298

298

298

298

298

298

280

Mar.

280

280

280

280

298

280

280

280

280

298

280

280

280

280

262

280

280

298

298

280

280

280

280

280

280

317

421

336

317

298

262

Apr.

259

252

242

235

235

231

231

225

225

222

231

231

248

228

218

225

231

235

225

906

545

587

612

356

280

262

242

238

280

262

May

259

235

280

245

242

458

504

435

298

252

231

255

356

317

280

280

262

245

235

228

206

209

202

196

193

193

209

222

209

243

317

June

280

280

248

1,170

2,200

2,130

2,330

2,430

1,840

1,580

1,350

1,420

1,200

995

832

865

1,140

995

970

625

625

544

570

598

544

468

421

377

356

336

July

317

280

280

280

280

262

245

242

238

228

225

222

277

346

238

212

209

209

206

209

259

502

2,210

1,230

570

444

399

377

317

317

280

Aug.

317

317

280

252

235

235

285

444

377

317

317

262

259

242

228

212

202

202

202

231

206

206

199

202

215

317

280

252

218

209

206

Sept.

199

190

184

184

182

199

209

202

212

206

193

184

184

184

179

179

184

187

215

215

215

209

190

298

017

298

280

280

280
196 SURFACE WATER SUPPLY, 1926, PART VIII

Monthly discharge of Pecos River near Comstock, Tex., for the year ending September

SO, 1926

Month

November.. ____ ___ _______________

February.. . _____ ___________________

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

May ___ . _____ . ________ .............

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

August _________ _____ __ . ___ ...

The year __________ .......................

Discharge in second-feet

Maximum

925 

399 

444 

356 

356 

421 

906 

504 

2,430 

2,210 

444 

317

2,430

Minimum

356 

317 

298 

298 

280 

262 

218 

193 

248 

206 

199 

179

179

Mean

479 

354 

362 

321 

315 

290 

300 

268 

991 

384 

256 

214

377

Run-off in 

acre-feet

29,400 

21,100 

22,300 

19,700 

17,500 

17,980 

17,800 

16,500 

58,900 

23,600 

15, 700 

12,700

273,000

1IMPIA CREEK NEAR FORT DA VIS, TEX.

LOCATION. At State highway No. 27 crossing, 13^ miles northeast of Fort Davis, 

Jeff Davis County, and 8% miles above mouth of Horse Thief Creek.

DRAINAGE AREA. Not measured.

RECORDS AVAILABLE. February 27, 1925, to September 30, 1926.

GAGE. Au 60-day water-stage recorder on right bank.

DISCHARGE MEASUREMENTS. Made from cable 300 feet below gage by wading, 

or by timing drift.

CHANNEL AND CONTROL. Bed of gravel and small rock. Channel straight for 

300 feet above and 200 feet below gage. One channel for low and medium 

stages and several for high stages. Banks of gravel, rock, and earth, sparsely 

covered with brush and weeds, and subject to overflow. Low-water control 

is concrete weir with steel edge. Intermediate and high-stage control is bed 

and banks of stream.

EXTREMES OF DISCHARGE. Maximum stage during year not determined but 

probably occurred during period of missing record; no flow for several periods. 

1925-1926: Maximum stage, from water-stage recorder, 5.95 feet at 5 

p. m. August 11, 1925 (discharge, 2,250 second-feet; determined from extension of rating curve and may be subject to error); no flow for several periods.

DIVERSIONS. None.

REGULATION. None.

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

Operation of water stage recorder satisfactory prior to April 5; not satisfactory thereafter. Daily discharge determined by applying to rating table 

mean daily gage heights obtained from recorder graph by inspection. 

Records good prior to April 5 and fair thereafter.

Discharge measurements of Limpia Creek near Fort Davis, Tex., during the year 

ending September SO, 1926

Date

Oct. 15-.-.....

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

Dec. 13 ......

Gage 

height

Feet 

1.59

1.44

1.39

Discharge

Sec.-ft. 

4 64

 1.0

«.8

Date

Feb. 18. 

July 15. .....

Gage 

height

Feet

1 4.fl

1.40

1.33

Discharge

Sec.-ft. 

0.44

 1.00 «.20

Date

July 24-.. __ .

Gage 

height

Feet 

1.26

1.29

Discharge

Sec.-ft. 

"0.02 -.26

Estimated.
RIO GKANDE BASIN 197

Daily discharge, in second-feet, of Limpia Creek near Fort Davis, Tex., for the year 

ending September 80, 1926

Day

1 __ . _____ ....

2 ___ . __ ..........

3 _.__

4... ___ .... _ ....

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

6 .. _____..__...

7 _ -

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

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

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

11 ____ . ............

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

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

14.. __ . _____ .

15 __ . ___ .........

16. __ ...... ____ ..

17 ____ ... __ ..

18. .._ _

10

20. _ ................

21 .

22 _ . _ .....

23 *... ....

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

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

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

27 .. ___ .. _ ....

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

29... _____ . _ ....

30 __ .. _______ .

31 

Oct.

2.1

2.0

1.5

1.3

1.3

1.4

1.8

1.4

15

11

15

10

7.0

5.4

7.8

6.2

4.1

3.3

3.0

9 1

2.1

1.8

1.7

1.8

1 R

1.4

1.1

1.0

1.1

1.1

Nov.

1.0

.7

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.7

.7

.8

.8

1.1

1.3

1.3

1.3

1.3

1.3

1.3

1.0

1.0

.8

.8

Dec.

0.6

.6

.6

.5

.4

.4

.3

.3

.4

.4

.5

.6

.6

.6

.6

.4

.4

.2

.1

0

0

0

0

0

0

0

.2

Jan.

0.4

.4

.5

.4

.4

.4.

.3

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.2

Feb.

0 4

4

6

6

7

7

8

8

8

.7

7

6

6

6

6

6

6

7

8

1 0

Mar.

1.0

1.1

1.1

1.1

1.0

1.0

.8

.7

.7

.6

.6

.5

.4

.4

.4

.4

.4

.4

.4

.5

.6

.7

1.3

.7

.7

.8

.8

.8

.8

.7

Apr.

0.7

.7

.7

.7

.7

July

.0

.4

.6

.3

.2

.2

.2

Aug.

0.2

.2

.1

.0

.0

.0

> 1.3

Sept.

1.3

NOTE. Discharge partly estimated Feb. 9,18, and Apr. 5; no record Apr. 6 to July 14. Braced figures 

show estimated mean discharge for periods indicated.

Monthly discharge of Limpia Creek near Fort Davis, Tex., for the year ending

September SO, 1926

Month

December __________________________

March _________________________ _

April 1-5- ____ . 

July 15-31 ___ .. 

September. _______________ _ _______

Discharge in second-feet

Maximum

15 

1.3 

.6 

.5

1.3

Minimum

1.0 

.6 

.0 

.0

.4

.0

Mean

4.28 

.85 

.32 

.13 

.67 

.70 

.70 

.18 

1.06 

1,30

Run-off in 

acre-feet

263 

60.6 

19.8 

7.9 

37.1 

43.2 

6.9 

6.0 

65.5 

77.4

BARRHLA CREEK WEAR SARAGOSA, TEX.

LOCATION. At Old Spanish Trail highway bridge, 2.8 miles from Reeves-Pecos 

county line and 15.5 miles by road southeast of Saragosa, Reeves County.

DRAINAGE AREA. Not measured.

RECORDS AVAILABLE. December 6, 1924, to July 15, 1926, when station was 

discontinued.

GAGE. Au 60-day water-stage recorder attached to downstream side of concrete 

pier of bridge; attended by United States Geological Survey engineers.

DISCHARGE MEASUREMENTS. Made from highway bridge or by wading.
198 SURFACE WATER SUPPLY, 1926, PART VIII

CHANNEL AND CONTROL. Bed of sand, gravel, and small boulders with some 

vegetation; shifting. Channel straight for 300 feet above and 500 feet 

below gage. Banks fairly clean and subject to overflow. Low-stage 

control is gravel bar 30 feet below gage; shifts badly.

EXTREMES OF DISCHARGE. Maximum stage during period, from water-stage 

recorder, 4.50 feet at 12.01 a. m. May 29 (discharge, 1,580 second-feet); 

no flow except May 24-25 and 28-29.

1925-26: Maximum stage, 8.81 feet at 1.10 a. m. July 31, 1925 (discharge, 5,700 second-feet; determined from extension of rating curve and 

may be subject to error); no flow for several periods.

DIVERSIONS. Small diversions above station; amount not known.

REGULATION. None of importance.

ACCURACY. Stage-discharge relation not permanent. Rating curve well 

defined for all stages. Operation of water-stage recorder satisfactory. 

Daily discharge determined by shifting-control method or, on days of considerable fluctuation in stage, by averaging discharge for intervals of a day. 

Records fair.

Discharge measurements February 18, April 5, and July 15, showed no flow; 

The daily discharge, in second-feet, for the period October 1, 1925, to July 15, 

1926, was as foUows: May 24, 1.7; May 25, 24; May 28, 61; May 29, 200. 

The total run-off for the period was 569 acre-feet. *

DEVILS EiVEE NEAR JUNO, TEX.

LOCATION. 500 feet below Bakers Crossing and Walter Baker ranch house, 

2 miles above mouth of Phillips Creek, 8 miles below headwater spring, and 

13/i miles southwest of Juno, Val Verde County.

DRAINAGE AREA. 2,730 square miles (measured on topographic maps, United 

States Army progressive military maps, and base map of Texas).

RECORDS AVAILABLE. May 26, 1925, to September 30, 1926.

GAGE. Au continuous water-stage recorder on left bank; attended by W. C; 

Dodd.

DISCHARGE MEASUREMENTS. Made by wading.

CHANNEL AND CONTROL. Bed of boulders and gravel; fairly permanent except 

for considerable aquatic growth. Channel straight for half a mile above 

and 1 mile below station. Right bank of gravel, sand, and clay; sodded 

and heavily wooded with trees and shrubs; subject to shift and overflow. 

Left bank of sand and clay; fairly clean; fairly permanent and not subject 

to overflow. Low-water control is bedrock with some gravel 230 feet below 

gage; fairly permanent except for aquatic growth. At high and intermediate stages control is partly formed by gravel bar on right and may shift.

EXTREMES OF DISCHARGE. Maximum stage recorded during year, 2.23 feet at 

1.30 a. m. October 16 (discharge, 136 second-feet); minimum discharge, 

74 second-feet August 14-19, and September 4-5.

1925-26: Maximum stage recorded, 15.8 feet at 11 p. m. May 29, 1925 

(discharge, 43,700 second-feet, determined by slope method and may be 

subject to error); minimum stage, that of August 14-19 and September 

4-5, 1926.

DIVERSIONS. None.

REGULATION. None.

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

for all stages during year. Operation of water-stage recorder satisfactory. 

Daily discharge determined by shifting-control method or, on days of considerable fluctuation in stage, by averaging discharge for intervals of a day; 

Records good.
BIO GBANDE BAfelN 199

Discharge measurements of Devils River near Juno, Tex., during the year ending

September 80, 1926

Date

Oct. I..........

Nov. 3 .

Jan. 7 

Gage 

height

Feet 

2.10

2.06

2.03

2.02

Discharge

Sec.-ft. 

104

106

90

92

Date

Mar. 8. ..

May 7 _ ......

Gage 

height

Feet 

1.98

1.99

2.00

2 10

Discharge

Sec.-ft. 

83

78

83

87

Date

July 10 

Sept. 6 ..... .

Gage 

height

Feet 

2.05

2.04

2.16

Discharge

See.-ft. 

82

77

00

Daily discharge, in second-feet, of Devils River near Juno, Tex., for the year ending

September 30, 1926

Day

1 ... 

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

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

4 __ . _____ ..

5 _ - _ . .......

6 ..-.....-.

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

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

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

10 

11 

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

13 

14 

15 .

16 - 

17 ...

18 

19 .

20 

21 .......

22 

23

24 ...

25 . 

26 

27 .

28 

29 .

30 

31.. ........

Oct.

102

104

104

104

102

104

104

104

104

104

104

106

104

104

108

114

108

108

108

106

106

106

106

110

110

108

108

108

106

108

108

Nov.

108

108

106

106

106

104

104

104

104

102

100

100

100

100

100

100

98

96

Qfl

96

96

96

04.

94

94

04

92

92

92

Dec.

90

90

90

90

90

92

92

92

92

09

92

92

94

94

94

92

92

92

92

92

92

92

92

92

92

92

09

92

94

94

04.

Jan.

92

92

92

92

92

92

92

92

92

92

92

92

92

92

92

92

90

88

88

88

88

88

87

87

87

86

86

86

86

86

84

Feb.

84

84

84

84

84

84

84

84

84

84

84

84

84

84

84

84

84

84

84

84

84

82

82

82

82

82

82

82

Mar.

82

82

82

82

82

82

82

82

84

86

86

84

82

82

82

84

84

81

80

80

82

82

82

81

81

81

81

81

82

81

80

Apr.

78

78

78

78

78

78

78

78

78

78

78

80

80

80

80

80

80

80

80

80

80

80

80

80

78

78

78

78

86

82

May

84

82

82

82

82

82

82

84

86

84

87

88

90

87

87

87

87

86

86

84

84

82

84

84

82

86

June

1 ,0

> 85

I

87

87

84

82

82

82

81

81

81

82

82

82

81

81

81

81

80

80

81

81

80

80

81

80

80

80

July

81

82

82

82

82

82

81

81

81

82

81

81

84

88

88

87

86

84

82

81

81

87

86

86

84

84

82

81

81

82

84

Aug.

81

80

78

76

76

76

75

75

75

75

75

75

75

74

74

74

74

74

74

80

75

76

76

82

78

76

76

76

75

75

75

Sept.

75

75

75

74

74

88

- 84

80

78

76

75

75

75

75

75

75

75

75

75

75

 75

75

75

75

78

76

78

76

75

75

NOTE. Discharge partly estimated June 5. Braced figures show estimated mean discharge for periods 

indicated.

Monthly discharge of Devils River near Juno, Tex., for the year ending September SO,

1926

Month

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

July-. 

Discharge in second-feet

Maximum

114 

108 

94 

92 

84 

86 

86 

90 

87. 

88 

82 

88

114

Minimum

102 

92 

90 

84 

82 

80 

' 78 

82 

80 

81 

74 

74

74

Mean

106 

99.5 

92.1 

89.6 

83.5 

82.1 

79.3 

84.9 

82.0 

83.1 

76.0 

76.2

86.2

Run-oft in 

acre-feet

6,630 

5,920 

5,660 

5,510 

4,640 

5,050 

4,720 

5,220 

4,880 

5, 110 

4,670 

4,640

62,400
200 SURFACE WATER SUPPLY, 1926, PART VIII

DEVILS RIVER NEAR DEI BIO, TEX.

LOCATION. 2,200 feet above Southern Pacific Co.'s railroad bridge and mouth 

of Sells Creek, 1.8 miles below State highway No. 3 crossing, 1.9 miles 

northeast of Devils River railroad station, and 12 miles northwest of Del 

Rio, Val Verde County.

DRAINAGE AREA. 4,000 square miles (measured on topographic maps, United 

States Army progressive military maps, and base map of Texas).

RECORDS AVAILABLE. December 6, 1923, to September 30, 1926. May 1, 1900, 

to March 31, 1914, at station known as Devils River at Devils River, 1 mile 

downstream.

GAGE. Stevens continuous recorder on left bank.

DISCHARGE MEASUREMENTS. Made from railroad bridge or by wading.

CHANNEL AND CONTROL. Bed of solid rock; rough; permanent. High-water 

channel of rock, overlain by gravel, with some trees and brush. Left bank 

of rock and clay, covered with timber and not subject to overflow; permanent. Right bank is rough rock bluff, covered with timber and not subject 

to overflow. Channel straight for 1,000 feet above and below station. Control is solid-rock ledge 80 feet below gage; rough; permanent.

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

recorder, 8.77 feet at 4 a. m. April 29 (discharge, 20,900 second-feet); minimum discharge (estimated), 366 second-feet September 15-22.

1900-1914, 1924-1926: Maximum stage recorded, 24.96 feet at 3 p. m. 

May 29, 1925 (discharge not determined); minimum mean daily stage, 2.0 

feet June 8, 1912 (discharge, 245 second-feet).

On April 6, 1900, a stage of 25.4 feet by datum of gage established May 1, 

1900, was reached. A stage of 30.15 feet, present gage datum, was reached 

in October, 1914, by levels to flood marks in December, 1924.

DIVERSIONS. None.

REGULATION. None.

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

from 330 to 3,000 second-feet and poorly defined from 3,000 to 32,000 

second-feet. Operation of water-stage recorder satisfactory, except for 

short breaks in the records. Daily discharge determined by applying mean 

daily gage height to rating table or, on days of considerable fluctuation in 

stage, by averaging discharge for intervals of a day. Records good.

Discharge measurements of Devils River near Del Rio, Tex., during the year ending

September 80, 1926

Date

Oct. 6.. . __

Oct. 14... ......

Nov. 2. ........

Nov. 9. _ .. ...

Dec. 1 ..........

Dec. 15 ___ ...

Jan. 6. .........

Jan. 18 . .____

Feb. 4...... ....

Gage 

height

Feet 

1.90

1.94

1.92

1.90

1.88

1.86

1.84

1.84

1.82

Discharge

Sec.-ft. 

478

469

457

452

418

416

402

Date

TV/Tor fi

Apr. 17 

Apr. 29 ..

May 13 

Gage 

height

Feet 

1.85

1.82

1.80

1.77

3.72

2

KK

1.84

1 7Q

1.77

Discharge

Sec.-ft. 

400

394

395

373

2,680

984

430

391

Date

July 6. ..... .

July 21. .....

Sept. 7- 

Sept. 15 _ .....

Gage 

height

Feet 

1.79

1.76

1.77

1.77

1,78

1.75

Discharge

Sec.-ft. 

397

390

389

387

387

380
RIO GRANDE BASIN 201

Daily discharge, in second-feet, of Devils River near Del Rio, Tex., for the year ending

September 80, 1926

Day

1. ____ . .....

2.._. ___ . .....

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

4. __ . _ .... .

5. _ .. __ .....

6. ______ .. .

7 ___ ......

8...... _ ......

9 .. __ ......

10. _____ ......

11 ________ .

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

13 _____ ......

14 ________ .

15. __ . ____ ..

16. ____ .......

17. ____ .... ...

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

19 ...____._ ...

20.... __ ......

21. ___ . _ ....

22 ____ _ . .

23. __ . ___ ....

24. ______ . ...

25. __ ........

26. ........

27 ___ ........ .

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

29- _ .... . .

30...._.. ........

31 .... __ . ...

Oct.

489

481

481

474

466

466

466

474

512

496

496

489

496

519

597

519

512

504

496

4QQ

496

AQfi

496-

504

504

AQQ

489

489

AQQ

489

Nov.

481

481

481

481

481

489

489

474

474

466

466

466

AKQ

459

466

4.fifi

459

452

452

AAK

445

445

452

AKO

445

445

445

Dec.

452

452

452

452

445

438

452

AAK

AAK

4.0 Q

452

4°. p.

,100

A A K

445

445

438

438

4.Q1

,101

431

431

431

4.31

,40.1

431

AQQ

438

Jan.

445

452

445

431

431

424

424

424

424

424

424

424

424

424

424

417

424

4.Q1

445

438

431

417

417

417

417

Feb.

410

410

410

410

410

410

410

410

417

410

410

417

417

410

403

410

410

396

396

396

396

Mar.

403

403

403

417

417

417

417

403

403

481

438

410

403

403

431

445

424

410

417

435

1,280

512

445

431

431

445

Apr.

396

396

396

396

396

403

410

396

OQfl

396

390

390

396

390

OQn

384

378

378

378

OCA

3

700

565

445

438

417

Af\1

608

5,730

7K7

May

1,260

597

542

519

489

466

452

438

431

424

417

431

424

424

417

417

417

417

417

410

410

403

403

410

410

403

512

512

June

466

445

438

459

424

390

390

384

390

390

384

378

378

372

378

390

378

378

541

July

} 541

396

396

390

384

384

384

378

378

384

384

390

410

396

396

390

384

384

378

372

372

474

431

396

384

384

384

378

390

403

Aug.

396

390

384

378

378

378

378

372

372

372

372

372

372

378

378

378

378

378

372

372

378

378

372

396

384

384

378

378

378

378

372

Sept.

372

374

376

378

380

382

384

378

377

376

374

372

370

368

366

366

366

366

366

366

366

366

368

370

372

374

376

377

378

372

NOTE. Discharge partly estimated June 4, 10, 22, July 3, Sept. 1, 7-8, 15, 29. Discharge from one staffgage reading Sept. 22. Braced figures show estimated mean discharge for periods indicated.

Monthly discharge of Devils River near Del Rio, Tex., for the year ending September

Month

October _____ . ____________________

January _____________________________

April... .______ _ 

July

August _____________________________

Theyear... ___ . _ ______ _.. __ ...

Discharge in second-feet

Maximum

597 

489 

452 

452 

417 

1,280 

5,730 

1,260

396

5,730

Minimum

466 

445 

431 

417 

396 

403 

378 

403 

372 

372 

372 

366

366

Mean

495 

464 

441 

427 

407 

451 

715 

468 

441 

401 

378 

373

455

Run-off in 

acre-feet

30.4CO 

27.6CO 

27, ICO 

26, SCO 

22,6CO 

27, 7CO 

42,600 

28,800 

26,300 

24,700 

23,300 

22, 200

330,000
202 SURFACE WATER SUPPLY, 1926, PART VIII

MISCELLANEOUS DISCHARGE MEASUREMENTS

Discharge measurements of streams in the western Gulf of Mexico 

basins at points other than regular gaging stations are listed in the 

following table:

Miscellaneous discharge measurements in western Gulf of Mexico basins during the 

year ending September 30, 1926

Trinity River Basin

Date

Nov. 17

Oct. 18

20

21

23

Stream

West Fork of Trinity River.

.... .do .

 -do-. .... .

 doTributary to 

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

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

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

Locality

above Fort Worth, Tex.

 do 

.....do ..

 do 

Gage 

height

Feet

14.54

15.80

9.07

1.59

Discharge

Sec.-ft. 

15.9

4,140

4,210

1,640

541

Colorado River Basin

Oct. 20

28

Nov. 30

Old Mill Springs..

__ do 

 do- 

 do 

 do 

.____ do~ > 

 do 

24.65 26,000

1.21

2.80

10.1

Guadalupe River Basin

Oct. 7

6

Dec. 2

Mar. 3

Aug. 20

20

20

Oct. 6

Dec. 3

Mar. 3

June 5

July 12

Mar. 3

Sept. 11

Apr. 16

15

Comal Springs .....

 do .....

..... do 

Geronimo Creek ...

 do 

 do 

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

..... do ...

 .do 

Blanco River .....

Cold Springs... ..

Cibolo Creek __ ..

.....do .

 -do 

 do 

 do ... .

 do. 

 do 

 .do 

 do 

 do 

 ..do 

 do 

 do _ .

ing at San Marcos, Tex.

 do 

 -do ....... 

 do 

Kyle, Tex.

ciusco, Tex.

Maria, Tex.

0.40 »304

«290

"295

' 1.15

3.75

0.44

124

144

135

236

220

15.6

7.7

24.3

36.1

Rio Grande Basin

Feb. 20

Nov. 10

Jan. 14

Apr. 14

June 18

Aug. 22

Oct. 9

12

20

29

Nov. 8

13

Dec. 3

10

17

23

Pecos River. ......

Goodenough

Springs. 

..... do ... .

 .do 

 .do 

 do 

Las Vacas River...

 do 

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

 do 

 do.- 

 do 

 .do .. _ ....

 .do. 

 do 

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

 do ..... 

 .do 

. do ...

..... do ....

 .do 

 do 

 do 

 do 

 do 

 do _ 

 do ..........

 do ..... .....

 do .

 do 

 _ do ...

 ..do ..... 

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

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

 do ..... . 

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

 do _ . __ 

 do . ....... 

 do 

. _ .do. __ - .... .. _ 

 do ......

. __ do ...... ... .... .....

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

2.10 140

177

158

149

lifi

144

*3.5

'5.0

M.O

M.O

'3.5

»4.0

»4.0

4.0

Total flow of the springs. *Estimated.
MISCELLANEOUS DISCHARGE MEASUREMENTS 203

Miscellaneous discharge measurements in western Gulf of Mexico basins during the 

year ending September SO, 1926 Continued

Rio Grande Basin Continued

Date

Jan. 5

13

27

Feb. 3

12

19

Apr. 7

13

23

26

June 9

16

24

29

July 7

14

19

26

Aug. 3

16

24

25

Sept. 9

13

21

Oct. 30

Dec. 30

Mar. 2

May 20

July 28

Sept. 28

Stream

 do 

 do 

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

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

 ..do.-. . ...

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

 ..do... .. 

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

 -do. .....

 do .._...-.

 -do 

 do .

..... do 

 do 

 do.. ...

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

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

 -do... .....

- .do. .... ...

 do ..... ... .

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

 do ... .....

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

 do .......

 do.. __ ......

 do ..... ...

__ do .............

- do. ...

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

. do . _ . ....

 do... 

Tributary to 

..... do ... 

 do.. ...

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

 do. .

 do.. ......

 do. 

 - do. ....

 do ........

.. do ..... .

 do. 

 do.. 

 do. 

 -do . ...... .

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 do .. 

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 do . _ ....

 do 

.. do.... .

 .do 

..... do 

 -do.. 

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

 do. .

 ..do 

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..... do 

 do 

 ..do.... 

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 do. 

Locality

. _ .do 

 do 

 do 

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 .do 

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. _ .do 

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

 do 

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 do 

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 do 

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 .do .... 

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 ..do _____ 

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 do 

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Gage 

height

Feet

Discharge

Sec.-ft. 64.0

M.O

M.O '4.0

'3.0

63.0

63.5

63.0

63.0

27.6

11.4

"5.0

64.0

63.5

68.0

65.0

64.0

' 4.0

' 4.0

"6.0

"4.0

'3.5

63.5

63.5

'3.5

63.5

63.5

«93.7

«91.7

«75. 5

«79.9

«87.7

«97.1

« Total flow of the springs. 

96272 30 14

6 Estimated.

INDEX

Page

Accuracy of data and results, degrees of .- 4-5 

Acre-foot, definition of_____.____. -_ 2

Angeles, Tex., Pecos Riyer near. _____ 186-187 

Angelina River near Lufkin, Tex______ 23-24 

Appropriations, record of-___ __. _ __ 1 

Aspermont, Tex., Double Mountain Fork of

Brazos River near__......_ 52-53

Atascosa River at Whitsett, Tex __ 162

Austin, Tex., Barton Springs at--_ ... 120-121

Colorado River at.-----------_ .. 94-96

evaporation near-..-.._____...-.__ 96-97 

Little Walnut Creek near -------_ 121-122

B

Ballinger, Tex., Colorado River at______ 88-89 

Barrilla Creek near Saragosa, Tex. . 197-198 

Barstow, Tex., Pecos River above_____ 189-191 

Barton Springs at Austin, Tex_______ 120-121 

Belton, Tex.. Leon River near_______ 73-75 

Blanco River at Wimberley, Tex.......... 132-134

discharge measurement of.--.______ _ 202

Bon Wier, Tex., Sabine River near.. __ 14-15

Brazos River at Rosenberg, Tex_______ 61-63

at Seymour, Tex._.___________ 54-E5

at Waco, Tex-.--........__.....__ _ 58-60

Clear Fork of, at Crystal Falls, Tex...__ 66-68 

at Fort Griffin, Tex..... ......... 64-66

atNugent, Tex.-..............._ 63-64

Double Mountain Fork of, near Aspermont, Tex --._------------- 52-53

near Bryan, Tex.______________ 60-61 

near Glen Rose, Tex.._.._....___ 57-58

near Mineral Wells, Tex___.. __ 55-57 

Brazos River Basin, Tex., gaging-station

records in______ _______ 52-86 

Bridgeport, Tex., West Fork of Trinity River

at-..-_.............._....... 25-27

Brownwood, Tex., Pecan Bayou at____ 106-107 

Brushy Creek at Coupland, Tex_______ 81-83 

Bryan, Tex,, Brazos River near_____. _ 60-61 

Buena Vista, Tex., Pecos River near .... 193-194

Calallen, Tex., Nueces River at_._._ 154-155 

Calliham, Tex., Frio River at.-__-_.. 159-160 

Cameron, Tex., Little River at________ 77-78 

Carlsbad, Tex., North Concho River near. 102-104 

Carrollton, Tex., Elm Fork of Trinity River

near_______ __________ 44-45 

Castell, Tex., Llano River near______ 116-117 

Cibolo Creek at Sutherland Springs, Tex.. 147-149 

discharge measurements of.---_____ 202 

Circleville, Tex., San Gabriel River at___ 80-81 

Clifton, Tex., North Bosque River near-__ 68-70 

Cold Springs, Tex., discharge measurement

of___________________ 202

Page

Colorado River at Austin, Tex._______. 94-S6 

at Ballinger, Tex._ ................... 88-J9

at Columbus, Tex_____________ 97-S9 

at Marble Falls, Tex..................... 93-J4

discharge measurement of.-..-_.. 2C 2 

near Milburn, Tex.- __.........._ 89-41

near Robert Lee, Tex__________ 86-J7 

near Tow, Tex..._____________ 91-J2 

Colorado River Basin, Tex., gaging-station

records in.. __ ...... ... 86-153

Columbus, Tex., Colorado River at...___ 97-?9 

Comal Springs, Tex., discharge measurements of .. --__... -- .202 

Comfort, Tex., Guadalupe River near.__ 123-135 

Computations, results of, accuracy of__... 44s 

Comstock, Tex., Pecos River near__._ 194-19J6 

Concan, Tex., Frio River at.. ..- 155-146 

Concho River near Paint Rock, Tex .... 101-HJ2

near San Angelo, Tex __------------ 99-1(^0

Conroe, Tex., San Jacinto River near___ - 51-^2 

Control, definition of-- -------- 2

Cooperation, record of.____ _- --- }0 

Cotulla, Tex., Nueces River at-______ 151-1*2 

Coupland, Tex., Brushy Creek at.---------- 81-^3

Crystal Falls, Tex., Clear Fork of Brazos

River at-_------__ .----.. 66-te

Cuero, Tex., Guadalupe River below_ 128-1?0

D ' 

Dallas, Tex., Elm Fork of Trinity River near. 45-47

Trinity River at - 31-$3

Data, accuracy of-_ . 4f5

explanation of. -- 2|4 

Del Rio, Tex., Devils River near_____ 200-2(1)1

Rio Grandenear.--- 176-1/8 

Del Valle, Tex., Onion Creek near 122-1^3 

Denton, Tex., Elm Fork of Trinity River , 

near 4243

Denton Creek near Roanoke, Tex- 47-49 

Derby, Tex., Frio River near____ 158-1^9 

Devils River near Del Rio, Tex ___... 200-2^1

near Juno, Tex.... - 198-109 

Divot, Tex., Leona River near...- 161-1^2

E

Eagle Pass, Tex.,.Rio Grande at.... 178-lfcO 

Easterly, Tex., Navasota River near 84-86 

El Paso, Tex., Rio Grande near..__ 168-109 

Elephant Butte Dam, N. Mex., Rio Grande

below.--...--____..--..--. 167-KS8 

Evadale, Tex., Neches River at--. 20-I!2 

Evaporation near Austin, Tex. -. 96-!l7 

Ewing Spring, Tex., discharge measurement

of... . 202

Falls City, Tex., San Antonio River near. 137-1$9 

Finlay, Tex., Rio Grandenear--- -- 169-lfl

205 !
206 INDEX

Page

Fort Davis, Tex., Limpia Creek near___ 196-197 

Fort Griffin, Tex., Clear Fork of Brazos River

at...... ...................... 64-66

Fort Worth, Tex., Clear Fork of Trinity

River at__.___________ 37-38 

West Fork of Trinity River above___ 27-28 

West Fork of Trinity River at........... 28-29

Frio River at Calliham, Tex________ 159-160 

at Concan, Tex_____________ 155-156 

near Derby, Tex_____________ 158-159 

near Frio Town, Tex___________ 157

G

Geronimo Creek, Tex., discharge measurements of_____._______ 202 

Glen Rose, Tex., Brazos River near.____ 57-58 

Golden, Tex., Sabine River near_______ 10-11 

Goliad, Tex., San Antonio River at...__. 139-141 

Goodenough Springs, Tex., discharge measurements of___________.. 202 

Goose Creek at Wagonwheel Gap, Colo... 184-185 

Grand Prairie, Tex., Mountain Creek near.. 40-42 

West Fork of Trinity River at______ 29-31 

Grandfalls, Tex., Pecos River near.____ 191-192 

Guadalupe River at New Braunfels, Tex__ 127-128 

below Cuero, Tex____________ 128-130 

near Comfort, Tex...____.___._ 123-125 

near Spring Branch, Tex________ 125-126 

Guadalupe River Basin, Tex., gaging-station

records in..___________ 123-149

H

Hamilton, Tex., Leon River near______ 72-73 

Handley, Tex., Village Creek near______ 38-40

Junction, Tex., Llano River near_____ 114-116

North Llano River near ________ 112-114

Juno, Tex., Devils Kivernear.______ 198-199

K

Kountze, Tex., Village Creek near______ 24-25

Laguna, Tex., Nueces River at______ 149-151 

Lampasas River at Youngsport, Tex____ 78-80 

Langtry, Tex., Rio Grande at__....__.. 174-176 

Las Vacas River, Mex., discharge measurements of-_____________ 202-203 

Leon River near Belton, Tex_________ 73-75

near Hamilton, Tex_ ___________ 72-73 

Leona River near Divot, Tex________ 161-162 

Limpia Creek near Fort Davis, Tex.___ 196-197 

Little River at Cameron, Tex. ________ 77-78

near Little River, Tex___________ 75-76 

Little Walnut Creek near Austin, Tex__ 121-122 

Llano River near Castell, Tex.______ 116-117

near Junction, Tex. ___________ 114-116 

Lockhart, Tex., Plum Creek near.____ 134-135 

Logansport, La., Sabine River at.._____ 13-14 

Longview, Tex., Sabine River near_____ 11-13 

Lufkin, Tex., Angelina River near______ 23-24

M

Marble Falls, Tex., Colorado River at___ 93-94 

Medina Canal near Riomedina, Tex___ 146-147

Page

'Medina River near Pipe Creek, Tex_-... 143-144

near Riomedina, Tex________.... 144-146

Menard, Tex., Noyes Canal at.___ 111-112

San Saba River at.._.__.__... 107-109

Milburn, Tex., Colorado River near_____ 89-91

Mineral Wells, Tex., Brazos River near.__ 55-57

Mountain Creek near Grand Prairie, Tex... 40-42

Mud Creek at Ponta, Tex............--._ . 22-23

N

Navasota River near Easterly, Tex_ .. 84-86

Neches River at Evadale, Tex________ 20-22

near Reese, Tex-.-...__.___ 18-19

near Rockland, Tex__......_. .. 19-20

Neches River Basin, Tex., gaging-station

records in__________.__ 18 25

New Braunfels, Tex., Guadalupe River at. 127-128

North Bosque River near Clifton, Tex___ 68-70

North Concho River at San Angelo, Tex.. 104-105

near Carlsbad, Tex__....___-.... 102-104

North Llano River near Junction, Tex 112-114 

Noyes Canal at Menard, Tex______.. 111-112 

Nueces River at Calallen, Tex....._ 154-155

at Cotulla, Tex_____________ 151-152 

at Laguna, Tex.._.______.._ . 149-151 

near Three Rivers, Tex_________ 152-154 

Nueces River Basin, Tex., gaging-station

records in...........___'.__ 149-162

Nugent, Tex., Clear Fork of Brazos River

at...______.-________. 63-64

O

Oakwood, Tex., Trinity River near_ 33-35 

Old Mill Springs, Tex., discharge measurements of____.__._ 202 

Onion Creek near Del Valle, Tex__. 122-123 

Ottine, Tex., San Marcos River at__ 131-132

Paint Rock, Tex., Concho River near--_ 101-102

Pecan Bayou at Brownwood, Tex-... 106-107

Pecos River above Barstow, Tex.-_ 189-191

discharge measurement of- 202

near Angeles, Tex-...._.... 186-187

near Buena Vista, Tex__- 193-194

near Comstock, Tex-____...- 194-196

near Grandfalls, Tex____.__... 191-192

near PorterviUe, Tex..-.-____ -. 187-189

Pedernales River at Stonewall, Tex_ 117-119

near Spicewood, Tex________ 119-120

Pipe Creek, Tex., Medina River near 143-144

Plum Creek near Lockhart, Tex..._. 134-135

Ponta, Tex., Mud Creek at 22-23

PorterviUe, Tex., Pecos River near,__ 187-189

Presidio, Tex., Rio Grande above___. 171-172

Rio Grande below__________ 172-174

Publications, information concerning- 5-9

obtaining or consulting of.____ 6-7

on stream flow, lists of_--.-._... - 7,9

Q 

Quitman, Tex., Lake Fork of Sabine River

near. 16-18

Rebecca Springs, Tex., discharge measurement of. --_-_-_ - 202
INDEX 207

Page

Reese, Tex., Neches River near..______ 18-19

Rio Grande above Presidio, Tex___.%... 171-172

at Eagle Pass, Tex_....____.__ 178-180.

at Langtry, Tex- . .... ___ 174-176

atLaredo, Tex...___________ 180-181 

at San Marcial, N. Mex.___. ..... 163-166

below Elephant Butte Dam, N. Mex.. 167-168 

below Old Fort Quitman, near Finlay,

Tex............._.. -...... 169-171

below Presidio, Tex______.___ 172-174 

near Brownsvflle, Tex_._.__.___ 181-183 

near Del Rio, Tex...............__.. 176-178

near El Paso, Tex.......__ 168-169

Rio Grande Basin, N. Mex.-Tex.-Colo.,

gaging-station records in..__ 163-201 

Rio Grande seepage investigation, Tex.... 183-184

Riomedina, Tex., Medina River near__ 144-146 

Riverside, Tex., Trinity River at. ____ 35-36 

Roanoke, Tex., Denton Creek near_____ 47-49 

Robert Lee, Tex., Colorado River near___ 86-87 

Rockland, Tex., Neches River near_____ 19-20 

Rockwall, Tex., East Fork of Trinity River

near__._____ ..___ 49-51 

Romayor, Tex., Trinity River at______ 36-37 

Rosenberg, Tex., Brazos River at______ 61-63 

Ruliff, Tex., Sabine River near_______ 15-16 

Run-off in inches, definition of...._____ 2

Sabine River at Logansport, La. 13-14 

Lake Fork of, near Quitman, Tex _ 16-18 

near Bon Wier, Tex____._____ 14-15 

near Golden, Tex____________ 10-11 

near Longview, Tex___________ 11-13 

near Ruliff, Tex..__.___.____.. 15-16 

Sabine River Basin, Tex.-La., gaging-station

records in_. __________ 10-18 

San Angelo, Tex., Concho River near.__ 99-100 

North Concho River at________ 104-105 

San Antonio, Tex., San Pedro Creek at_ 141-142 

San Antonio River at Goliad, Tex____ 139-141 

at San Antonio, Tex.-___ ___ 136-137 

near Falls City, Tex_____..___ 137-139 

San Felipe Springs, Tex., discharge measurements of.____________ 203 

San Gabriel River at Circleville, Tex____ 80-81 

San Jacinto River near Conroe, Tex____ 51-52 

San Marcial, N. Mex., Rio Grande at__ 163-166 

San Marcos River at Ottine, Tex_____ 131-132 

discharge measurements of.._____ 202 

San Pedro Creek at San Antonio, Tex__ 141-142 

San Saba.River at Menard, Tex_____ 107-109 

near San Saba, Tex______,___ 109-111

'Page

Saragosa, Tex., Barrilla Creek near_ ... 197-198 

Second-feet per square mile, definition of 2 

Second-foot, definition of.. 2 

Seymour, Tex., Brazos River at.__ 54-55 

Somerville, Tex., Yegua Creek near 83-84 

South Bosque River near Speegleville, Tex.- 70-72 

Speegleville, Tex., South Bosque River near. 70-72 

Spicewood, Tex., Pedernales River near 119-120 

Spring Branch, Tex., Guadalupe River near. 125-126 

Stage-discharge relation, definition of 2 

Stonewall, Tex., Pedernales River at 117-119 

Sutherland Springs, Tex., Cibolo Creek at. 147-149

T 

Terms, definition of..__ ........ 2

Three Rivers, Tex., Nueces River near 152-154

Tow, Tex., Colorado River near 91-92

Trinity River at Dallas, Tex..___ 31-33

at Riverside, Tex_________ 35-36

at Romayor, Tex 36-37

Clear Fork of, at Fort Worth, Tex 37-38

discharge measurements of.. 202

Elm Fork of, near Carrollton, Tex 44-45

near Dallas, Tex 45-47

near Denton, Tex 42-43

near Rockwall, Tex 49-51

near Oakwood, Tex_ 33-35

West Fork of, at Bridgeport, Tex 25-27

at Fort Worth, Tex...____ :.. 28-29

at Grand Prairie, Tex..___.. 29-31

at Lake Worth Dam, above Fort

Worth, Tex...... ... 27-28

discharge measurement of , 202 

Trinity River Basin, Tex., gaging-station

records in.... . . 25-51

Village Creek near Handley, Tex 38-40 

near Kountze, Tex_ 24-25

W

Wagonwheel Gap, Colo., Goose Creek at 184-185

Whitsett, Tex., Atascosa River at 162

Wimberley, Tex., Blanco River at... 132-134

Work, authorization of 1

division of. ... 10

scope of._______ 1-2

Yegua Creek near Somerville, Tex 83-84 

Youngsport, Tex., Lampasas River at 78-80

Zero flow, point of, definition of.

o