DEPARTMENT OF THE INTERIOR

UNITED STATES GEOLOGICAL SURVEY

GEORGE OTIS SMITH, DIBECTOK

WATER-SUPPLY PAPER 302

SURFACE WATER SUPPLY OP THE 

UNITED STATES

1911

PART II. SOUTH ATLANTIC COAST AND EASTERN 

GULF OF MEXICO DRAINAGE BASINS

PREPARED UNDER THE DIRECTION OF M. O. LEIGHTON

BY

M. K. HALL AND C. H. PIERCE

WASHINGTON

GOVERNMENT PRINTING OFFICE 

1913
DEPARTMENT OF THE INTERIOR

UNITED STATES GEOLOGICAL SURVEY

GEORGE OTIS SMITH, DIBECTOR

WATER-SUPPLY PAPER 302

SURFACE WATER SUPPLY OF THE

UNITED STATES

1911

PART II. SOUTH ATLANTIC COAST AND EASTERN 

GULF OF MEXICO DRAINAGE BASINS

PREPARED UNDER THE DIRECTION OP M. O. 1.EIGHTON

BY

M. R. HALL AND C. H. PIERCE

WASHINGTON

GOTERNMENT PRINTING OFFICE 

1913
CONTENTS.

Page.

Authority for the work.................................................... 5

Publications.............................................................. 6

Definition of terms......................................................... 8

Convenient equivalents.................................................... 9

Explanation of data........................................................ 10

Accuracy and reliability of field data and comparative results................. 12

Cooperation and acknowledgments......................................... 13

Division of work.......................................................... 13

South Atlantic coast drainage basins........................................ 14

James River basin..................................................... 14

James River at Buchanan, Va....................................... 14

James River at Holcomb Rock, Va.................................. 15

James River at Cartersville, Va.................................... 16

Roanoke River basin.................................................. 18

Roanoke River at Roanoke, Va.................................... 18

Roanoke River at Old Gaston, N. C................................. 20

Yadkin or Peedee River basin.......................................... 21

Yadkin River near Salisbury, N. C.................................. 21

Yadkin River near Peedee, N. C................................... 23

Peedee River at Cheraw, S. C........................................ 24

Savannah River basin................................................. 27

Tallulah River at Tallulah Falls, Ga................................. 27

Broad River (of Georgia) near Carlton, Ga........................... 29

Altamaha River basin.................................................. 31

Ocmulgee River near Jackson, Ga.................................. 31

Ocmulgee River at Macon, Ga..................................... 32

Oconee River near Greensboro, Ga.................................. 35

Oconee River at Fraleys Ferry, near Milledgeville, Ga................ 37

Oconee River at Dublin, Ga....................................... 38

Eastern Gulf of Mexico drainage basins..................................... 40

Apalachicola River basin............................................... 40

Chattahoochee River near Norcross, Ga.............................. 40

Chattahoochee River at West Point, Ga............................. 43

Chattahoochee River at Alaga, Ala................................. 43

Flint River near Woodbury, Ga.................................... 44

Flint River near Culloden, Ga...................................... 46

Flint River near Montezuma, Ga.................................... 48

Flint River at Albany, Ga......................................... 50

Flint River at Bainbridge, Ga...................................... 52

Choctawhatchee River basin........................................... 54

Choctawhatchee River near Newton, Ala........................... 54

Pea River at Pera, Ala............................................. 55

Escambia River basin.................................................. 57

Conecuh River at Beck, Ala................................... _ - 57

3
4 CONTENTS.

Eastern Gulf of Mexico drainage basins Continued. Page.

Mobile River basin.................................................... 59

Oostanaula River at Resaca, Ga............. 1...................... 59

Coosa River at Riverside, Ala....................................... 61

Alabama River at Selma, Ala....................................... 63

Etowah River near Ball Ground, Ga................................ 65

Etowah River near Rome, Ga....................................... 67

Arnicalola River near Potts Mountain, Ga........................... 69

Tallapoosa River at Sturdevant, Ala................................ 72

Tombigbee River at Columbus, Miss................................. 74

Tombigbee River at Epes, Ala...................................... 76

Black Warrior River near Cordova, Ala.............................. 78

Pearl River basin.................................................. 82

Pearl River at Jackson, Miss........................................ 82

Miscellaneous measurements................................................ 84

Summary of discharge per square mile....................................... 84

Index.................................................................... 87

ILLUSTRATIONS.

Page. 

PLATE I. Map showing mean annual precipitation in the United States....... 12

II. Map showing mean annual run-off in the United States............. 12

III. Typical gaging station: A, Cable station with automatic gage; B, For

bridge measurement........................................... 12

IV. Small Price current meters....................................... 13
SURFACE WATER SUPPLY OF THE SOUTH ATLANTIC 

COAST AND EASTERN GULF OF MEXICO DRAINAGE 

BASINS, 1911,

By M. R. HALL and C. H. PIERCE.

AUTHORITY FOR THE WORK.

This volume is Part II of a series of 12 reports presenting results 

of measurements of flow made on certain streams in the United States 

during the calendar year 1911. The reports are listed in the following table:

Papers on surface water supply of the United States, 1911.

Part.o

I

II

III

IV

V 

VI

VII vni

IX

X

XI

XII

No.

301

302

303

304

305 

306

307

308

309

310

311

312

Title.

North Atlantic coast.

South Atlantic coast and eastern Gulf of Mexico.

Ohio River basin.

St. Lawrence River basin.

Upper Mississippi River and Hudson Bay basins. 

Missouri River basin.

Lower Mississippi River basin.

Western Gulf of Mexico.

Colorado River basin.

Great Basin.

Pacific coast in California.

North Pacific coast.

* 

o For the purpose of uniformity in the presentation of reports, a general plan has been agreed upon by the 

United States Reclamation Service, the United States Forest Service, the United States weather Bureau, 

and the United States Geological Survey, according to which the area of the United States has been divided 

into 12 parts, whose boundaries coincide with natural drainage lines indicated by the parts of the report.

The data presented in these reports were collected by the United 

States Geological Survey under authority implied in the organic law 

(20 Stat. L., p. 394), which contains the following paragraph:

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 of 

water supply for irrigation.

Since the fiscal year ending June 30, 1895, successive sundry civil 

bills passed by Congress have carried the following item and appropriations:
6 simf ACE wAffin str&PLY, ioii, PAET n.

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 fpr the fiscal year ending June 30 

1895..... ................................................ $12,500

1896..................................................... 20,000

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

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

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

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

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

1911 to 1913, inclusive. .................................. 150, 000

In the execution of the work many private and State organizations 

have cooperated. Acknowledgments for such cooperation are made 

on page 13 and also in connection with the description of each station 

affected by the cooperative work.

PUBLICATIONS.

Measurements of stream flow have been made at nearly 2,000 

points in the United States and also at many points in small areas 

in Seward Peninsula and the Yukon-Tanana region, Alaska, and in 

the Hawaiian Islands. During 1911 gaging stations were maintained 

by the Survey and the cooperating organizations at about 1,500 

points in the United States, and many discharge measurements were 

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

collected in regard to precipitation, evaporation, storage reservoirs, 

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

will be made available in the regular surface water supply papers 

from time to time. A complete list of the gaging stations maintained 

by the Survey to and including 1910, and a list of the papers relating 

to the water supply of the country, have been published by the 

Survey as Water-Supply Paper 280. An index to the reports containing stream-flow measurements prior to 1904 has been published 

as Water-Supply Paper 119.

For each calendar year there has been prepared a report embodying the stream-flow data collected during that year, which has been 

published either as a part of the annual report of the Director, as 

a bulletin, or as a water-supply paper, as shown by the following 

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

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

Report.

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

llth A, pt.2. .........

12th A, pt.2. .........

13thA, pt. 3.. ........

14th A, pt.2..........

B13L... ..............

16th A, pt.2. .........

B140.... ..............

WS 11.......... .......

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

WS15.................

WS 16...... ...........

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

WS 27..... ............

WS 28.. ...............

WS 35 to 39. ..........

21st A, pt. 4...........

WS 47 to 52.. .........

22dA.pt. 4...........

WS 65. 66..... ........

WS 75......... ........

W<3 fi9 tr< Rfi

WS 97 to 100... .......

WS 124 to 135. ........

WS 165 to 178. ........

WS 201 to 214.........

WS 241 to 252. ........

WS 261 to 272.........

WS 281 to 292.........

WS 301 to 312. ........

Character of data.

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

Mean discharge in second-feet. ..................................

Descriptions, measurements, gage heights, ratings, and monthly 

discharge (also many data covering earlier years).

Descriptions, measurements, ratings, and monthly discharge 

(also similar data for some earlier years). 

Descriptions, measurements, and gage heights, eastern United 

States, eastern Mississippi River, and Missouri River above 

junction with Kansas. 

Descriptions, measurements, and gage heights, western Mississippi River below junction of Missouri and Platte, and western 

United States. 

Descriptions, measurements, ratings, and monthly discharge 

(also some long-time records). 

Measurements, ratings, and gage heights, eastern United States, 

eastern Mississippi River, and Missouri River. 

Measurements, ratings, and gage heights, Arkansas River and 

western United States.

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

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

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

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

Year.

1884 to Sept., 

1890. 

1884 to June 30, 

1891. 

1884 to Dec. 31, 

1892. 

1888 to Dec. 31, 

1893. 

1893 and 1894,

1895.

1896. 

1895 and 1896.

1897. 

1897.

1897. 

1898. 

1898.

1898. 

1899. 

1899. 

1900. 

1900. 

1901. 

1901. 

1902. 

1903. 

1904. 

1905. 

1906. 

1907-8. 

1909. 

1910. 

1911.

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

The table which follows gives, by years and drainage basins, the 

numbers of the papers on surface water supply published from 1899 

to 1911. 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 WMtneyville, Me., 1903 to 

1911, are published in Water-Supply Papers 97, 124, 165, 201, 241, 

261, 281, and 301, which contain records for the New England 

streams from 1903 to 1911.
8 SUEFACE WATEE SUPPLY, 19U, PAET n.

Numbers of water-supply papers containing results of stream measurements, 1899-1911.

North Atlantic coast (St. John

South Atlantic coast and eastern 

Gulf of Mexico (James River

St. Lawrence River and Great

Hudson Bay and upper MissisNorth Atlantic coast (St. John 

River to York River) .........

South Atlantic coast and eastern 

Gulf of Mexico (James River

St. Lawrence River and Great

Hudson Bay and upper MissisLower Mississippi River. ........

Western Gulf of Mexico .........

Pacific coast in California. .......

1899"

35

035,36 

36

36

36 

*36,37 

37 

37 

o 37,38 

38, P 39 

38, r 39 

38

19006

47, c48

48 

48,^49

49

49 

49, m 50 

50 

50 

50 

51 

51 

51

1905

d 165, e 166, / 167

/ 167, 168 

169

170

171 

172 

3 169, 173 

174 

175, « 177 

176, « 177 

177 

t 177, 178

1901

65,75

65,75 

65,75

65,75

j 65. 66, 75 

'66,75 

y 65, 66, 75 

66,75 

66,75 

66,75 

66,75 

66,75

1906

<Z201,«202,/203

/ 203,204 

205

206

207 

208 

) 205, 209 

210 

211 

212, q 213 

213 

214

1902

82

082,83 

83

* 82,83

^83,85 

84 

j?83,84 

84 

85 

85 

85 

85

1907-8

241

242 

243

244

245 

246 

247 

248 

249 

250, « 251 

251 

252

1903

97

097,98 

98

97

/98,99,*100 

99 

^98,99 

99 

100 

100 

100 

100

1909

261

262 

263

264

265 

266 

267 

268 

269 

270, q 271 

271 

272

1904

<Z124,«125,/126

/ 126, 127 

128

129

/ 128, 130 

130. « 131 

/ 128, 131 

132 

133 

133, « 134 

134 

135

1910

281

282 

283

284

285 

286 

287 

288 

289 

290 

291 

292

1911

301

302 

303

304

305 

306 

307 

308 

309 

310 

311 

312

a Rating tables and index to Water-Supply Papers 35-39 continued in Water-Supply Paper 39. 

6 Rating tables and index to Water-Supply Papers 47-52 and data on precipitation, wells, and irrigation 

in California and Utah contained in Water-Su .....__ Supply Paper 52.

c Wissahickon and Schuylkill rivers to James Kiver. 

« New England rivers only. 

e Hudson River to Delaware River, inclusive. 

/ Susquehanna River to Yadkin River, inclusive. 

g James River only, 

ft Scioto River.

i Lake Ontario and tributaries to St. Lawrence River proper. 

i Tributaries of Mississippi from east.

* Hudson Bay only. 

l Gallatin River.

m Loup and Platte rivers near Columbus, Nebr., and all tributaries below junction with Platte. 

n Platte and Kansas rivers.

o Green and Gunnison rivers and Grand River above junction with Gunnison. 

P Mohave River onlv.

q Great Basin in California, excepting Truckee and Carson drainage basins. 

r Kings and Kern rivers and south Pacific coast drainage basins.

* Below junction with Gila.

* Rogue, Umpqua, and Siletz rivers only.

DEFINITION OF TERMS.

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

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

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

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

water, as run-off in depth in inches and acre-feet. The units used in 

this series of reports are second-feet, second-feet per square mile, 

run-off depth in inches, and acre-feet. They may be defined as follows:
CONVENIENT EQUIVALENTS.

"Second-foot" is an abbreviation for cubic foot per second and is 

the unit for the rate of discharge of water flowing in a stream 1 foot 

wide, 1 foot deep, at a rate of 1 foot per second. It is generally 

used as a fundamental unit from which others are computed by the 

use of the factors given in the following table of equivalents.

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

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

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

regards time and area.

"Run-off, depth in inches," is the depth to which the drainage area 

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

were conserved and 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" is equivalent to 43,560 cubic feet and 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 work.

CONVENIENT EQUIVALENTS.

The following is a list of convenient equivalents for use in hydraulic 

computations:

Table for converting discharge in second-feet per square mile into run-off in depth in

inches over the area.

Discharge in second-feet per square mile.

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

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

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

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

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

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

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

8..................;.......................

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

Run-off in inches.

Iday.

0.03719 

.07438 

.11157 

.14876 

.18595 

.22314 

.26033 

.29752 

.33471

28 days.

1.041 

2.083 

3.124 

4.165 

5.207 

6.248 

7.289 

8.331 

9.372

29 days.

1.079 

2.157 

3.236 

4.314 

5.393 

6.471 

7.550 

8.628 

9.707

30 days.

1.116 

2.231 

3.347 

4.463

5.578 

6.694 

7.810 

8.926 

10.041

31 days.

1.153 

2.306 

3.459 

4.612

5,764 

6.917 

8.070 

9.223 

10.376

NOTE. For partial month multiply the values for one day by the number of days.

Table for converting discharge in second-feet into run-off in acre-feet.

Run-off in acre-feet.

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

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

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

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

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

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

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

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

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

1 day.

1 983

3.967

5.950

7.934

9.917

11.90

13.88

15.87

17.85

28 days.

55.54

111.1

166.6

222.1

277.7

333.2

388.8

444.3

diOO fi

29 days.

57.52

115.0

172.6

230.1

'287.6

345.1

402.6

460.2

817.7

30 days.

59.50

119.0

178.5

238.0

297.5

357.0

416.5

476.0

535.5

31 days.

61 49

123.0

184.5

246.0

307.4

368.9

430 4

491.9

663 4

NOTE. For partial month multiply the values for one day by the number of days.
10 SUR^ACfe WATER SUPPLY, 1911, PART H.

1 second-foot equals 40 California miner's inches (law of Mar. 23,1901). 

1 second-foot equals 38.4 Colorado miner's inches. 

1 second-foot equals 40 Arizona miner's inches.

1 second-foot equals 7.48 United States gallons per second; equals 448.8 gallons per 

minute; equals 646,317 gallons for one day.

1 second-foot for one year covers 1 square mile 1.131 feet or 13.572 inches deep.

1 second-foot for one year equals 31,536,000 cubic feet.

1 second-foot equals about 1 acre-inch per hour.

1 second-foot for one day equals 86,400 cijbic feet.

1,000,000,000 (1 United States billion) cubic feet equals 11,570 second-feet for 1 day.

1,000,000,000 cubic feet equals 414 second-feet for one 28-day month.

1,000,000,000 cubic feet equals 399 second-feet for one 29-day month.

1,000,000,000 cubic feet equals 386 second-feet for one 30-day month.

1,000,000,000 cubic feet equals 373 second-feet for one 31-day month.

100 California miner's inches equals 18.7 United States gallons per second.

100 California miner's inches for one day equals 4.96 acre-feet.

100 Colorado miner's inches equals 2.60 second-feet.

100 Colorado miner's inches equals 19.5 United States gallons per second.

100 Colorado miner's inches for one day equals 5.17 acre-feet.

100 United States gallons per minute equals 0.223 second-foot.

100 United States gallons per minute for one day equals 0.442 acre-foot.

1,000,000 United States gallons per day equals 1.55 second-feet.

1,000,000 United States gallons equals 3.07 acre-feet.

1,000,000 cubic feet equals 22.95 acre-feet.

1 acre-foot equals 325,850 gallons.

1 inch deep on 1 square mile equals 2,323,200 cubic feet.

1 inch deep on 1 square mile equals 0.0737 second-foot per year.

1 foot equals 0.3048 meter.

1 mile equals 1.60935 kilometers.

1 mile equals 5,280 feet.

1 acre equals 0.4047 hectare.

1 acre equals 43,560 square feet.

1 acre equals 209 feet square, nearly.

1 square mile equals 2.59 square kilometers.

1 cubic foot equals 0.0283 cubic meter.

1 cubic foot of water weighs 62.5 pounds.

1 cubic meter per minute equals 0.5886 second-foot.

1 horsepower equals 550 foot-pounds per second.

1 horsepower equals 76.0 kilogram-meters per second.

1 horsepower equals 746 watts.

1 horsepower equals 1 second-foot falling 8.80 feet.

1J horsepower equals about 1 kilowatt.

To calculate water power quickly: ec '" ' ' a m ee =net horsepower on water 

wheel realizing 80 per cent of theoretical power.

EXPLANATION OF DATA.

For each regular current-meter gaging station the following data, 

so far as available, are given: Description of the station, list of discharge measurements, table of daily gage heights, table of daily 

discharge, table of monthly and yearly discharges and run-off. For 

stations located at weirs or dams the gage-height table is omitted.
 EXPLANATION OF DATA. 11

In addition to statements regarding the location and installation 

of current-meter stations, the descriptions give information in regard 

to any conditions that may affect the constancy of the relation of 

gage height to discharge, covering such points as ice, logging, shifting 

channels, and backwater; also information regarding diversions which 

decrease the total flow at the measuring section. Statements are also 

made regarding the accuracy and reliability of the data.

The table of daily gage heights records the daily fluctuations of the 

surface of the river as found from the mean of the gage readings taken 

each day, usually in the morning and in the evening. The gage height 

given in the table represents the elevation of the surface of the water 

above the zero of the gage. All gage heights affected by the presence 

of ice in the streams or by backwater from obstructions are published 

as recorded, with suitable footnotes. The rating table is not applicable for such periods unless the proper corrections to the gage 

heights are known and applied. Attention is called to the fact that 

the zero of the gage is placed at an arbitrary datum and has no relation to zero flow or the bottom of the river. In general the zero is 

located somewhat below the lowest known flow, so that negative readings shall not occur.

The discharge measurements and gage heights are the base data 

from which rating tables, daily discharge tables, and monthly discharge tables are computed.

The rating table gives, either directly or by interpolation, the discharge in second-feet corresponding to every stage of the river 

recorded during the period for which it is applicable. It is not published in this report, but can be determined from the tables of daily 

gage heights and daily discharge, as follows:

First plot the discharge measurements for the current and earlier 

years on cross-section paper, with gage heights in feet as ordinates 

and discharge in second-feet as abscissas. Then tabulate a number 

of gage heights taken from the daily gage-height table for the complete 

range of stage given and the corresponding discharges for the days 

selected from the daily discharge table and plot the values on crosssection paper. The last points plotted will define the rating curve 

used and will lie among the plotted discharge measurements. After 

drawing the rating curve a table can be developed by scaling off the 

discharge in second-feet for each tenth foot of gage height. These 

values should be so adjusted that the first differences shall always be 

increasing or constant, except for known backwater periods.

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

corresponding to the observed gage heights as determined from the 

rating tables.

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

gives the mean flow, as determined from the rating table, for the
12 SURFACE WATER SUPPLY, 1911, PART H.

day when the mean gage height was highest. As the gage height 

is the mean for the day, it does not indicate correctly the stage when 

the water surface was at crest height, and the corresponding discharge was consequently larger than given in the maximum column. 

Likewise in the column of "Minimum" the quantity given is the 

mean flow for the day when the mean gage height was lowest. The 

column headed "Mean" is the average flow in cubic feet for each 

second during the month. On this the computations for the remaining columns, which are defined on pages 8-9, are based.

The field methods used in the collection of the data presented in 

this series of reports are described in the introductory sections of 

Water-Supply Papers 261 to 272, inclusive, "Surface water supply 

of the United States, 1909." Plates I and II show the average precipitation and run-off in the United States, as determined from the 

measurements of stream flow made by the Geological Survey and 

records of rainfall collected by the Weather Bureau. Plate III 

shows typical gaging stations. Plate IV shows current meters 1 used 

in the work.

ACCURACY AND RELIABILITY OF FIELD DATA AND 

COMPARATIVE RESULTS.

The accuracy of stream-flow data depends primarily on the natural 

conditions at the gaging station and on the methods and care with 

which the data are collected. Errors of the first group depend on 

the degree of permanency of channel and of permanency of the relation between discharge and stage.

Errors of the second class are due, first, to errors in observation of 

stage; second, to errors in measurements of flow; and, third, to 

errors due to misinterpretation of stage and flow data.

In order to give engineers and others information regarding the 

probable accuracy of the computed results, footnotes are added to 

the daily-discharge tables, stating the probable accuracy of the 

rating tables used, and an accuracy column is inserted in the monthly 

discharge table. For the rating tables "well defined" indicates, in 

general, that the rating is probably accurate within 5 per cent; 

"fairly well defined," within 10 per cent; "poorly defined" or 

"approximate" 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 accuracy column in the monthly discharge table does not 

apply to the maximum or minimum nor to any individual day, but 

to the monthly mean. It is based on the accuracy of the rating, 

the probable reliability of the observer, and knowledge of local conditions. In this column A indicates that the mean monthly flow is

1 See Hoyt, J. C., and others, Use and care of current meter as practiced by the United States Geological 

Survey: Trans. Am. See. Civil Eng., vol. 66,1910, p. 70.
U. S. GEOLOGICAL SURVEY 

GEORGE OTIS SMITH. DIRECTOR WATER-SUPPLY PAPERS 301 TO 312 PLATE I

MAP OF ITNITP:D STATES, SHOWING MEAN ANNTFAL PRECIPITATION

Blue lines and figures indicate average annual precipitation in depth in inches

Prepared by Henry Gannett 

mainly from data of the 

United States Geological Survey

and United States Weather Bureau
U. S. GEOLOGICAL SURVEY 

GEORGE OTIS SMITH, DIRECTOR WATER-SUPPLY PAPERS 301 TO 312 PLATE II

JIB ;\ ^'^^^ ' i ~^v J- * v~ : ; / A ' d *T<* >r ^^$tr--'--''n'%-^ T-L-"-^-^ V'i"'"'^^^ L" ^-^^fe¥ft^( ^N\s^%/- ! """K'L^i JXii^\'7tCr';^^i ^r* '^M^~'\C-.^ \, ^

k' \i /; N> ^ i l ^f / ' V l<"^ - §^/. ; \ic^ ^fe.r^----'-y,.--Uy^' N *>^«^.t^K^^^J?^

cVV'USvt^-' '-V'" - r^ 

 - .,^\-^t? , - .r , u f «,* .<g.^

MAP OF UNITED STATES, SHOWING MEAN ANNUAL RUN-OFF

Blue lines and figures indicate average annual run-off in depth in inches

Prepared by Hfnry Gannett 

mainly from data of tlie 

United States Geological Survey
U. S. GEOLOGICAL SURVEY WATER-SUPPLY PAPER 302 PLATE III

A. CABLE STATION WITH AUTOMATIC GAGE.

B. FOR BRIDGE MEASUREMENT.

TYPICAL GAGING STATIONS.
U. S. GEOLOGICAL SURVEY WATER-SUPPLY PAPER 302 PLATE IV

SMALL PRICE CURRENT METERS.
ACCUKACY AND EELIABILITY OF FIELD DATA. 13

probably accurate within 5 per cent; B, within 10 per cent; C, 

within 15 per cent; D, within 25 per cent. Special conditions are 

covered by footnotes.

Even though the monthly means for any station may represent 

with a high degree of accuracy the quantity of water flowing past 

the gage, the figures showing discharge per square mile and depth 

of run-off in inches may be subject to gross errors which result from 

including in the measured drainage area large noncontributing districts or omitting estimates of water diverted for irrigation or other 

use, and they should therefore be considered as only approximate, 

particularly for periods of irrigation or of low water. For these 

errors it is as a rule not feasible to make adequate correction.

In general, the base data collected each year by the Survey engineers are published, not only to comply with the law, but to afford 

any engineer the means of examining and adjusting to his own needs 

the results of the computations. The table of monthly discharge is 

so arranged as to give only a general idea of the flow at the station 

and should not be used for other than preliminary estimates. The 

determinations of daily discharge allow more detailed studies of the 

variation in flow by which the period of deficiency may be determined.

It should be borne in mind that the observations in each succeeding year may be expected to throw new light on data already collected 

and published, and the engineer who makes use of the figures presented in these papers should verify all ratings and make such adjustments for earlier years as may seem necessary.

COOPERATION AND ACKNOWLEDGMENTS.

Special acknowledgments are due for assistance rendered or records 

furnished by the United States Engineer Corps, United States Weather 

Bureau, North Georgia Electric Co., Central Georgia Power Co., Geological Survey of Alabama, Wilson Aluminum Co., Roanoke Railway 

& Electric Co., Rockingham Power Co., Northern Contracting Co., 

and North Carolina Electric & Power Co.

DIVISION OF WORK.

The field data in the James and Roanoke drainage basins were 

collected under the direction of R. H. Bolster, hydraulic engineer, 

assisted by H. J. Jackson, J. G. Mathers, and H. J. Dean.

The field data for all drainage basins south of Roanoke River were 

collected by M. R. Hall, district engineer, assisted by R. E. Robertson.

The ratings, special estimates, and studies of the completed data 

were made by M. R. Hall, C. H. Pierce, and A. H. Tuttle.

The computations were made and the data were prepared for publication by C. H. Pierce, A. H. Tuttle, J. G. Mathers, H. J. Dean, C. L. 

Batchelder, W. R. King, M. I. Walters, and G. A. Wallace.

The report was edited by Mrs. B. D. Wood.
14 SURFACE WATEE SUPPLY, 1911, PART H.

SOUTH ATLANTIC COAST DRAINAGE BASINS.

JAMES BIVEB BASIN. 

JAMES RIVER AT BUCHANAN, VA.

Location. At the highway bridge near the Chesapeake & Ohio Railway depot at 

Buchanan, Va.

Records available. August 18, 1895, to December 31, 1911.

Drainage area. 2,060 square miles.

Gage. A chain gage, attached to the highway bridge, was installed November 21, 

1903, to replace the original wire gage read from August 18, 1895, to that date. 

The datum of the gage was lowered 2 feet April 3, 1897, to avoid negative readings; subsequently the datum of the gage has remained constant.

Channel. The bed of the river under the bridge is composed of rock overlain with a 

heavy deposit of mud. There is a rock control several hundred feet below the 

station.

Discharge measurements. Made from the downstream side of two-span highway 

bridge.

Winter flow. Occasionally affected by ice for short periods.

Accuracy. Rating curve well developed. Published data considered good.

Cooperation. Previous to July 15, 1906, the observations of daily gage height were 

made by employees of the Geological Survey; since that time gage height records 

have been furnished by the United States Weather Bureau.

The following discharge measurement was made by Matters and Dean: 

July 28, 1911: Gage height, 1.88 feet; discharge, 421 second-feet.

Daily gage height, in feet, of James River, at Buchanan, Va.,for 1911. 

[D. D. Booze, observer.)

Day.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Jan.

4.0

6.6

9.0

11.0

6.7

5.7

4.5

3 9

3.6

3

0

3.1 

3.0

3.0

2.9

2.9

2 Q

3.0

3.3 

3.1

2 9

2.8

2.8

3 A

5,4

4.8

4.1

3.5

3.3

3.2 

7.2

10.6

Feb.

7.5

5.6

4.8

4.0

3.8

3.5

3

0

4.3

4.6

5 9

5.1 

4.6

A 9

4.0

3.8

3.6

3

0

3.2 

3.1

3

0

3

C

3 9

o 9

3.1

3.0

3.0

3 A

Mar.

3.0

3 A

3.0

O A

2 9

2.9

6.5

5.1

4.3

5.5

7.0 

6.1

5.4

5.1

5

0

5.0

5.0

5.0 

5.0

4.Q

4.8

4.6

4.2

4 0

3.7

3 7

4.2

4.7

4.7 

5.0

Apr.

5.2

5.0

5.0

5 9

8.0

9 6

0 0

8.2

8.0

7.8

7.6 

7.6

7.0

7.2

fi Q

6 4

6.0

5.5 

4.8

5.0

5.6

5.1

4.9

4.5

4.2

4.0

3.9

3.7

3.6 

3.6

May.

3.6

3.5

3.4

3.3

3.2

3.2

3.1

3.1

s n

3.0 

2.9

2.8

2.8

2.7

2.7

2 7

2.6 

2.6

2.5

2.5

2.4

2.4

2.4

2.4

2.4

2.4

2.5

2.5 

2.5

June.

2.5

2.5

2.4

2.4

2.5

2.5

0 1

3.2

3.0

2 9

2.8 

2.7

2.6

2.5

2.4

2.4

2

0

2.2 

2.2

9 9

2 9

2.2

2 9

2.1

2.1

2.1

2.1

2.1

2.1 

2.1

July.

2.1

2.1

2.1

2.1

2.1

2.1

2.1

2.7

2.7

2.5

2.5 

2.5

2.4

2.4

2.4

2.3

2.3

2.2

2.2

2.1

2.0

2.0

2.0

2.0

1.9

1.9

1.9

1.9 

1.8

1.8

Aug.

1.8

1.8

1.8

1.8

1.9

2.2

2.2

2.0

2.0

1 9

1.9 

1.9

1.9

1.8

1.8

2.4

2

1

2.0 

2.0

1 Q

1 Q

1.9

1 9

1.9

1.8

1.8

2.0

2.0

2.1

4.0

4.9

Sept.

4.8

4.4

3.4

2.9

2.7

2.5

2.3

2.3

2.2

2.2

2.4

9 Q

2.9

2.6

2.4

2.3

2.4

2.5 

2.4

2.3

2.3

2.2

2.1

2.0

2.0

2.0

2.0

2.0 

2.0

Oct.

2.0

2.0

2.1

2.1

2.1

2.1

2.0

2.0

2.0

2.0

2.0 

2.3

2.3

2.3

2.3

2.3

2.4

6.5 

7.0

6.5

6.0

5.0

5.0

3.9

3.6

3.3

3.1

2.9

2.7

2.6

Nov.

2.6

2.5

2.4

2.4

2.3

2.3

0. Q

3.7

4.5

4 0

3.8 

3.6

3.5

3.5

3.5

3.4

3.4 

3.3

3.3

3

K

3.3

o o

3 2

3.2

3.1

3.1

3 1

3.1 

3.1

Dec.

3.0

2.9

2.8

2.7

2.7

2.6

2.6

2.6

2.5

2.5

2.5 

2.5

2.5

2.4

2.4

2.5

3.1

3.1 

3.0

3.0

3.0

2.9

5.0

6.5

5.7

5.5

5.0

4.7

4.6 

4.5

4.6
SOUTH ATLANTIC COAST BASINS. 15 

Daily discharge, in second-feet, of James River at Buchanan, Fa., for 1911.

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...............

Jan.

3,040

9,030

16,500

24 400

9,300

6,720

4 030

2^860

2,340

1,880

1,610

1,480

1,480

1,360

1,360

1,360

1,480

1,880

1,610

1,360

1,240

1.240

L480

6,020

4,660

3,240

1,880

1,740

10.700

22,700

Feb.

11,600

6,480

4,660

3,040

2,680

2,180

1,880

3,620

4,240

5,560

5,330

4,240

3,430

3,040

2,680

2,340

1,880

1,740

1,610

1,880

2,340

1.740

1,740

1,610

1,610

1,480

1 480

1 J 480

Mar.

1,480

1,480

1,480

1,480

1,360

1,360

8,760

5,330

3,620

6,260

10,100

7,720

6,020

5,330

5,780

5,100

5,100

5,100

5,100

4,880

4,660

4,240

3,430

3 040

2,500

2,500

3,430

4,450

4,450

5,100

5,&30

Apr.

5,560

5,100

5,100

13,100

18,700

13,800

13,800

13,100

12,500

11,900

11,900

10,100

10,700

9,850

8,500

7.460

6.250

4,660

5,100

6,480

5,330

4,880

4 030

3,430

3,040

2,860

2,500

2,340

2,340

May.

2 1d(\

2,340

2,180

2,030

1,880

1,740

1 740

1,610

1,610

1,480

1 480

1,360

1,240

1,240

1,140

1 140

1,140

1,030

1,030

930

930

835

835

835

835

835

930

930

930

835

June.

930

930

835

835

QQft

930

1,610

1 740

l'480

1,360

1 240

l'l40

l'030

<wn

835

835

745

660

660

660

660

660

660

585

585

585

585

585

585

585

July.

585

585

585

585

585

585

585

1,140

1,140

930

QQA

930

835

835

745

745

660

660

585

585

515

515

515

450

450

450

450

385

385

Aug.

385

385

385

385

450

660

660

515

515

450

450

450

450

385

385

835

585

515

515

450

450

450

450

450

385

385

515

515

585

3,040

4,880

Sept.

4,660

3,820

2,030

1,360

1 140

930

745

745

660

660

835

1,360

1,360

1,030

835

745

835

930

745

745

660

660

585

515

515

515

515

515

515

Oct.

515

515

585

585

585

585

515

515

515

515

745

745

745

745

745

835

8,760

10,100

8,760

7,460

5,100

5,100

3,820

2,860

2,340

1,880

1,610

1,360

1,140

1,030

Nov.

1,030

osn

835

835

745

745

2.860

2,500

4,030

3 040

2,680

2.340

2,180

2,180

2,180

2,030

2,030

2,030

1,880

1,880

2,180

1,880

1,880

1,740

1,740

1,610

1,610

1,610

1,610

1,610

Dec.

1 480

1^360

1,240

1 140

l'l40

1,030

1,030

1,030

930

930

930

930

930

835

835

930

1,610

1,610

1,480

1,480

1,480

1,360

5,100

8,760

6,720

6,250

5,100

4,450

4,240

4,030

4,240

NOTE. Daily discharge computed from a rating curve fairly well defined below 20,000 second-feet.

Monthly discharge of James River at Buchanan, Va.,for 1911. 

[Drainage area, 2,060 square miles.]

Month.

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

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

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

Discharge in second-feet.

Maximum.

24,400 

11,600 

10,100 

18,700 

2,340 

1,740 

1,140 

4,880 

4,660 

10,100 

4,030 

8,760

24,400

Minimum.

1,240 

1,480 

1,360 

2,340

835 

585 

385 

385 

515 

515 

745 

835

385

Mean.

4,910 

3,130 

4,390 

7,720 

1,300 

880 

654 

707 

1,070 

2,320 

1,880 

2,410

2,610

Per 

square 

mile.

2.38 

1.52 

2.13 

3.75 

.631 

.427 

.317 

.343 

.519 

1.13 

.913 

1.17

1.27

Run-off 

(depth in 

inches on 

drainage 

area).

2.74 

1.58 

2.46 

4.18 

.73 

.48 

.37 

.40 

.58 

1.30 

1.02 

1.35

17.19

Accuracy.

A. 

A. 

A. 

A. 

A. 

A. 

A. 

A. 

A. 

A. 

A. 

A.

JAMES RIVER AT HOLCOMB ROCK, VA.

Location. At the works of the Wilson Aluminum Co., at Holcomb Rock, Va. 

Records available. Gage heights January 1, 1900, to December 31, 1911. 

Drainage area. Not measured.

Gage. A copper float inclosed in a stilling box, with a vertical rod extending up 

through the power-house floor. 

1520° WSP 302 13 2
16 SUBFACE WATER SUPPLY, 1911, PAET H.

Discharge measurements. No discharge measurements have been made at thia

station. 

Cooperation. Gage heights have been furnished the Geological Survey by George

O. Seward, general manager of the Wilson Aluminum Co.

Daily gage height, infect, of James River at Holcomb Rock, Va.,for 1911. 

[J. H. Webb, observer.]

Day.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

18......:........

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

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

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

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

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

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

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

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

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

28

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

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

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

Jan.

5.1

6.2

8.5 

11.0

7.5

4.8

3.6

2.8

2.6

2.2

2.1

2.1

2.0

2.2

2.3

2.4

2.2

2.2

2.0

1 Q

1 Q

1 9

3.6

4.6

3.6

3

1

2.7

2.8

2.7 

5.4 

10.5

Feb.

6.3

4.8

4.2 

3.7

3.1

3.0

2.8

2.6

2.8

4.3

4.4

3.5

3.2

3.0

2.8

2.6

2.4

9 Q

2

ft

2.4

2.4

2.4

9 ^

2.2

2 9

1 9

9 ft

2 A

Mar.

1.9

1.9

1.9

1 Q

1.6

2.0

4.0

^ Q

3.2

3.4

6.3

5.8

4.6

4.2

4 4

4.1

3.6

^ 9

9 Q

3.2

^ Q

3.6

^ 9

3.0

2.6

2.4

^ n

4.0

3.8 

3.9 

4.5

Apr.

4.25

3.65

3.5

S Q

7.55

9.55

7.65

6.4

6.3

6.1

5.1

4.55

4.0

S Q

5.1

6.05

5.55

4.65

4.15

4.0

4.25

3 7

3.65

3 OK

2 Q

2.75

2

CK

3.25 

2.3

May.

2.4

2.45

2.45 

2.4

2.2

2.2

1.95

2.05

1.9

2.0

2.0

1.8

1.75

1.3

1.75

1.5

1.5

1.5

1.35

1.2

1.4

1.05

1.3

1 ^

1 9S

1.35

1 ^

1.4 

1.45 

1.2

June.

1.45

1.4

1.2 

1.2

1.25

1.5

1.7

1.8

2.45

1.8

1.25

1.5

1.4

1.3

1.25

1.15

1.15

1.0

1.2

1.25

1.2

1.2

1.2

1.2

1 9

1.3

1.2

1 9

1.15 

1.1

July.

1.15

.9

,.85 

.95

1.15

1.75

1.2

1.5

1.4

1.35

1.2

1.4

1.4

1.4

1.7

1.4

1.25

1.15

1.1

.95

.65

1.0

.95

.8

.7

.7

.8

.7

.7 

.7 

.95

Aug.

0.7

.8

.75 

' 1.1

1.05

1.15

1.0

1.0

.9

1.05

.9

.85

.65

1.25

1.35

1.4

1.3

1.15

1.1

.85

.8

1.0

.8

.75

.85

.75

1.0

OK

1.0 

1.65

4.4

Sept.

4.85

3.45

2.35 

1.9

1.65

1.4

1.3

1.2

1.2

1.1

1.25

1.25

1.3

1.5

1.45

1.3

1.15

1.2

1.35

1.3

1.3

1.2

1.2

.85

1.1

1.05

.9

.7

1.1 

.9

Oct.

0.95

.9

1.0 

1.1

1.25

.9

.95

1.05

1.0

1.1

1.15

1.2

1.25

1.0

1.3

1.25

1.7

6.85

8.35

4.25

3.05

2.55

2.45

2.3

2.3

2.15

2.05

1.9

1.7

1.7 

1.7

Nov.

1.45

1.4

1.4 

1.25

1.3

1.3

3.65

5.4

3.65

2.95

2.65

2.45

2.35

2.4

2.4

2.3

2.3

2.1

2.1

2.55

2.6

2.5

2.1

2.1

1.9

1.9

1.9

1.9

1.8 

1.8

Dec.

1.8

1.7

1.65 

1.7

1.65

1.6

1.5

1.4

1.4

1.4

1.4

1.3

1.3

1.3

1.4

2.1

2.4

2.4

2.25

2.1

1.8

1.8

4.15

6.3

5.55

5.15

5.15

5.35

4.65 

4.0 

3.5

JAMES RIVER AT CARTERSVILLE, VA.

Location. At the highway bridge crossing James River between Pemberton and

Cartersville, about 50 miles above Richmond. 

Records available. January 1, 18991, to December 31, 1911. 

Drainage area. 6,230 square miles. 

Gage. A standard chain gage was attached to the highway bridge, July 24, 1903, to

replace the wire gage which had been used from January 1, 1899, to that date.

The datum of the gage has remained the same since the station was established. 

Channel. The left bank overflows for several hundred feet at a stage of about 20

feet; the right bank does not overflow. 

Discharge measurements. Made from downstream side of six-span highway

bridge.

Winter flow. Occasionally affected by ice for short periods during severe winters. 

Accuracy. Rating curve well developed for ordinary stages. Above the overflow

point the discharge is uncertain.

The following discharge measurement was made by Mathers and Dean: 

July 30, 1911: Gage height, 0.65 foot; discharge, 1,020 second-feet.
SOUTH ATLANTIC COAST BASINS. 17

Daily gage height, in feet, of James River at Cartersville, Fa., for 1911. 

[B. W. Palmore, observer.]

Day.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Jan.

3.6

7.7

8.9

16.2

13.0

9.2

8.2

6.0

4.2

4.0

3.2

2.9

2.8

2.7

2.6

2.6

2.9

2.8

2.6

2.5

2.4

2.5

2.9

3.7

5.0

4.5

4.1

3.6

3.5

3.6

5.4

Feb.

11.3

8.0

6.7

5.4

4.8

3.9

3.7

3.7

3.6

4.2

3.7

4.0

4.6

4.1

3.7

3.3

3.2

3.1

3.4

2.8

2.7

3.1

3.0

2.9

2.7

2.6

2.5

2 4

Mar.

2.4

2.3

2.3

2.2

2.1

2.1

2.2

2.8

4.8

4.4

5.1

5.7

6.3

5.6

5.1

4.9

4.7

4.2

4.0

3.6

3.8

4.2

4. 9

4 n

3.5

3.4

3.7

4.2

4.4

4.8

4.6

Apr.

5.0

i Q

4.4

4.5

7.0

11.8

10.7

9.3

8.9

8.0

7.2

6.6

6.0

5.2

5.1

5.6

7.2

6.6

5.8

6.0

5.7

5.5

5.4

5.0

4.6

4.2

3.9

3.7

3.5

3.5

May.

3.4

3.2

3.1

3.0

2.8

2.8

2.7

2.6

2.6

2.6

2.5

2.4

2.3

2.1

1.9

2.0

1.9

1.7

1.6

1.6

1.5

1.35

1.5

1.4

1.35

1.3

1.3

1.25

1.2

1.2

June.

1.35

1.25

1.1

1.45

1.8

1.6

1.7

1.9

1.9

1 Q

1.7

1.45

1.4

1.3

1.2

1.15

1.1

1.1

1.15

1.1

1.05

98

1.3

1.7

1.5

1.2

1.1

OS

July.

0.92

84

.76

.82

.74

.74

1.7

2.8

2.2

1.35

1.25

1.1

1.45

1.3

1.2

1.15

1.3

.91

.86

.88

.69

.71

.62

.58

.72

.59

.57

.61

.58

.62

Aug.

0.50

.50

.66

.61

.59

.58

1.15

1.0

1.0

.78

.80

.76

.72

.80

.79

1.7

1.5

1.4

.90

.88

.88

.72

.50

.54

.52

.72

.74

.76

.90

1.2

2.2

Sept.

7.6

5.4

4.6

3.5

3.0

2.5

2.6

1.35

1.1

1.1

1.1

1.4

1.3

1.3

1.1

1.4

1.5

1.15

1.1

1.1

1.3

1.1

1.15

1.1

.98

.81

.84

.80

.78

.78

Oct.

0.74

fin

.62

.78

.92

.79

.82

.80

.82

.89

1.1

.98

1.0

1.1

1.0

.99

1.1

3.6

6.8

8.8

5.0

4.8

4.2

3.7

3.0

2.7

2.4

2.2

2.0

1.8

1.7

Nov.

1.7

1.6

1.5

1.45

1.35

1.35

2.0

3.0

6.3

4.8

3.8

3.4

3.0

2.9

2.7

2.7

2.8

2.7

2.8

2.8

2.8

3.0

2.8

2.7

2.6

2.5

2.4

2.8

4.0

3.2

Dec.

2.7

2.6

2.4

2.1

2.2

2.0

1.9

1.9

1.8

1.7

1.6

1.5

1.6

1.6

1.6

2.8

7.4

4.9

4.1

3.2

3.0

3.1

7.4

8.2

9.2

7.7

7.5

7.0

6.6

5.8

Daily discharge, in second-feet, of James River at Cartersville, Va.,for 1911.

Day.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Jan.

6,900

18,000

22,000

49,400

36,700

33,000

19,600

13,000

8,310

7,830

5,990

5,330

5,120

4,910

4,700

4,700

5,330

5,120

4,700

4,490

4,280

4,490

5,330

7,130

10,300

9,030

8,070

6,900

6,670 

6,900 

11,400

Feb.

30,300

19,000

15,000

11,400

9,780

7,590

7,130

7,130

6,900

8,310

7,130

7,830

9,280

8,070

7 130

6,210

5,990

5,770

6,440

5,120

A nifl

5,770

5,550

5,330

4,910

4,700

4,490

4,280

Mar.

4,280

4,080

4,080

3,880

3,680

3,680

3,880

5,120

9,780

8,790

10,600

12,200

13,800

11,900

10,600

10,000

9,530

8,310

7,830

6,900

7,360

8,310

8,310

7,830

6,670

7,130

8,310

8,790 

9,780 

9,280

Apr.

10,300

10,000

8,790

9

/V>n

15,900

32,200

28,200

23,300

22,000

19,000

16,500

14,700

13,000

10,800

10,600

11,900

16,500

14,700

12,400

13,000

19 9ftft

11,600

11,400

10,300

9,280

8,310

7,590

7,130

6,670 

6,670

May.

6

AAf\

5,990

5,770

5,550

5,120

5,120

4 oin

4,700

4,700

4,700

A. dOn

4,280

4 080

3,880

3,680

3,280

3,480

3,280

2,900

2,710

2,710

2,530

2,260

2,530

2,350

2,260

2,170

2,170

2.080 

2,000 

2,000

June.

2,260

2,080

1,830

1,830

3,090

2,710

2,900

3,280

3^280

3,280

2,900

2,440

2,350

2,170

2,000

2,000

1,920

1,830

1,830

1,920

1,830

1,750

1 640

2,170

2,900

2,530

2,000

1,830 

1,640

July.

1,590

1,540

1,420

1,290

1,390

1,260

1,260

2,900

5,120

3,880

2,260

2,080

1,830

2,440

2,000

1,920

2,170

1,530

1,450

1 480

1,180

1,220

1 080

1,020

1,230

1,040

1,000

1,060 

1,020 

1,080

Aug.

900

900

1,140

1 060

1,020

1,920

1,670

1,670

1,320

1,360

1,290

1,230

1,360

1 tAf\

2,900

2,350

1,510

1,480

1 480

1,230

900

960

930

1,230

1,260

1,290

1,510 

2,000 

3,880

Sept.

17 700

11^400

9,280

6,670

5,550

4,490

4,700

2,260

1,830

1,830

1,830

2,350

2,170

2,170

1,830

2,350

2,530

1,920

1,830

1,830

2,170

1,830

1,920

1,830

1,640

1,370

1,420

1,360

1,320 

1,320

Oct.

1,260

1,180

1,080

1,320

1,540

1,340

1,390

1,360

1,390

1,490

1,830

1,640

1,670

1,830

1,670

1,650

1,830

6,900

15,300

21,600

10,300

9,780

8,310

7,130

5,550

4,910

4,280

3,880

3,480 

3,090 

2,900

Nov.

2,900

2,710

2,530

2,440

2,260

2,260

3,480

5,550

13,800

9,780

7,360

6,440

5,550

5,330

4,910

4,910

5,120

4,910

5,120

5,120

5,120

5,550

5,120

4,910

"4,700

4,490

4,280

5,120

7,830 

5,990

Dec.

4,910

4,700

4,280

3,680

3,880

3,480

3,280

3,280

3,090

2,900

2,710

2,530

2,710

2,710

2,710

5,120

17, 100

10,000

8,070

5,990

5,550

5,770

17,100

19,600

23,000

18,000

17,400

15,900

14,700 

12,400 

12,000

NOTE. Daily discharge computed from a rating curve, well defined below 10,000 second-feet and fairly 

well defined below 25,000 second-feet. Discharge July 1 and Dec. 31 interpolated.
18 SUBFACE WATEB SUPPLY, 1911, PART H.

Monthly discharge of James River at Cartersville, Va., for 1911. 

[Drainage area, 6,230 square miles.]

Month.

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

Discharge in second-feet.

Maximum.

49,400 

30,300 

13,800 

32,200 

6,440 

3,280 

5,120 

3,880 

17,700 

21,600 

13,800 

23,000

49,400

Minimum.

4,280 

4,280 

3,680 

6,670 

2,000 

1,640 

1,000 

900 

1,320 

1,080 

2,260 

2,530

900

Mean.

10,800 

8,270 

7,780 

13,500 

3,680 

2,290 

1,740 

1,510 

3,420 

4,290 

5,190 

8,340

5,880

Per 

square 

mile.

1.73 

1.33 

1.25 

2.17 

.591 

.368 

.279 

.242 

.549 

.689 

.833 

1.34

.944

Run-Off 

(depth in 

inches on 

drainage 

area).

1.99 

1.38 

1.44 

2.42 

.68 

.41 

.32 

.28 

.61 

.79 

.93 

1.54

12.79

Accuracy.

A. 

A. 

A. 

A. 

A. 

A. 

A. 

A. 

A. 

A. 

A. 

A.

ROANOKE RIVER BASIN. 

KOANOKE KIVEK AT ROANOKE, VA.

Location. At the Walnut Street highway bridge at Roanoke, Va.

Records available. July 10, 1896, to July 14, 1906; May 7, 1908, to December 31, 

1911.

Drainage area. 388 square miles.

Gage. A standard chain gage was attached to the Walnut Street bridge November 

28, 1903, to replace the wire gage which had been read from July 10, 1896, to that 

date. The datum of the gage has remained unchanged since the station was 

established.

Channel. Nearly straight, with a width of 160 feet between bridge abutments broken 

by one pier. The bed of the stream is composed of coarse gravel and small bowlder. The right bank is above high water, but the left bank may overflow at 

extreme flood stages.

Discharge measurements. Made from the downstream side of two-span highway 

bridge.

Winter flow. Occasionally affected by ice for short periods.

Accuracy. Owing to varying conditions of flow frequent measurements are required 

at low stages to adequately define the discharge curve from year to year.

Cooperation. Gage-height records furnished to the Geological Survey through the 

courtesy of the Roanoke Railway & Electric Co.

Discharge measurements of Roanoke River at Roanoke, Va., in 1911.

Date.

July 27

27

27

Hydrographer.

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

height.

0.68

.69

.71

Discharge.

«82.5

79.8

88.9

Measurement made at Jefferson Street Bridge.
SOUTH ATLANTIC COAST BASINS. 19

Daily gage height, in feet, of Roanoke River at Roanoke, Va., for 1911. 

[G. W. Hogshead, observer.]

Day.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Jan.

1.9

2.75

2.9

3.2

2.2

1.9

1.65

1.5

1.4

1.35

1.3

1.25

1.15

1.1

1 05

1.0 

1.0

1.0

1.0

1.0

1.0

1.0

2.0

1 Q

1.8

1.5

1.4

1.4

1.4

2.5

2.2

Feb.

2.0

1.8

1.6

1.45

1.4

1.3

1.3

1.3

1.3

2.6

2.0

1.85

1 7K

1.6

1.5

1.4 

1.4

1.4

1.4

1.5

1.5

1.45

1.4

1.4

1.35

1.3

1.25

1.2

Mar.

1.2

1.15

1.15

1.1

1.1

2.45

2.7

2.2

2.0

3.1

2.9

2.8

2.6

2.2

2.1

2.0 

1 4

1 Q

1.8

1.8

1.8

1.7

1.55

1.5

1.4

1.4

1.6

1.6

1.55

1.65

1.85

Apr.

1.75

1 65

1.65

2.5

4.0

4.0

3.8

3.3

2.7

2.5

2.3

2.1

2.3

2.65

2.5

2.45 

2.4

2.1

2.0

2.0

1.95

1.85

1.8

1.7

1.65

1.55

1.5

1.5

1.5

1.5

May.

1.55

1.5

1 °.K.

1 °.

1 9.

1.25

1.25

1.25

1.25

1.25

1.2

. 1.2

1.15

1.15

1.1

1.1

1.1

1.05

1 05

1.0

1.0

1.0

1.0

1.0

1.0

.95

.95

.95

.95

1.0

1.0

June.

1.0

1.0

1.0

1.0

1.7

1 9

1.1

1.7

1

0

1 9

1.1

1.05

1.0

1.0

1.2

1.1 

1.0

1.0

1.0

1.0

.95

.9

.9

9

1.2

1.1

1.0

.9

.9

July.

0 9

9

.85

.85

1

0

1.0

9

2.4

1.6

1 9

1.2

1.2

1 9

1 9

1.0

.95 

.9

9

.85

.85

.8

.75

.75

75

.7

.7

.7

.7

.7

.7

Aug.

0.68

.68

.68

.75

1.1

1 9

.8

.75

.7

.68

.68

.68

9

7K

.7 

.68

.67

.65

.65

.65

.62

.62

.6

.6

.6

.6

.6

.7

1.5

1.2

Sept.

1 9

1.0

.95

OK

7C

7C

.7

.7

.7

.8

1.0

9

.85

.85 

.8

.75

.75

.75

.7

.7

.75

.75

.7

.7

.7

.68

.68

.68

Oct.

0.68

.68

fiQ

.65

.65

.65

.7

.75

7K

.75

.85

.8

.75

.7

.7

_7 .'7

3

71?

1.5

1.2

1.1

1.1

1.2

1.1

1.05

1.0

1.0

.9

.9

.85

.85

Nov.

0.8

.8

.8

1.8

1.2

1

0

1.3

1.4

1.3

1 9

1.2

1.2

1.2 

1.2

1.2

1.2

1.2

1.2

1.1

1.1

1.1

1.1

1.0

1.0

1.0

1.0

1.0

Dec.

1.0

9

9

9

9

9

9

.9

9

7C

.75 .7."

.75

.75

1.0

1.4

2.0

1.7

1.5

1.4

1.3

1.3

2.9

2.9

2.9

2.9

3.0

2.9

2.6

2.0

1 9

Daily discharge, in second-feet, of Roanoke River at Roanoke, Va., for 1911.

Day.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

30............... q-i

Jan.

620

i isn

1,540

1,900

850

620

459

376

326

302

279

258

218

200

183

166

166

166

166

166

166

166

690

620

550

376

326

326 326'

1,130

. 850

Feb.

690

550

430

351

326

279

279

279

279

1,230

690

585

519

430

376

326

326

326

376

376

351

326

326

302

279

258

237

.......

Mar.

237

218

218

200

200

1,080

1,330

850

690

1,780

1,540

1,440

1,230

850

770

690

620

620

550

550

550

488

403

376

326

326

430

430

403

459

585

Apr.

519

459

459

1,130

2,900

2,900

2,640

2,020

1,330

1,130

940

770

940

1,280

1,130

1,080

1,030

770

' 690

690

655

585

550

488

459

403

376

376

376

376

May.

403

376

302

279

279

258

258

258

258

258

237

237

218

218

200

200

200

183

183

166

166

166

166

166

166

151

151

151

151

166 

166

June.

166

166

166

166

488

237

200

488

279

237

200

183

166

166

237

200

166

166

166

166

151

136

136

136

136

237

200

166

136

136

July.

136

iifi

123

123

550

166

136

1,030

430

237

237

237

237

237

166

151

136

136

136

123

123

110

98

98

98

86

86

86

86

86 

86

Au?

82

§2

82

98

200

237

110

98

86

82

82

82

136

110

98

86

82

80

76

76

76

69

69

65

65

65

65

65

86

376 

237

Sept.

237

166

151

123

110

98

98

86

86

86

110

166

136

136

123

123

110

98

98

98

86

86

98

98

86

86

86

82

82

82

Oct.

82

82

82

76

76

76

86

98

98

98

123

110

98

86

. 86

86

86

2,580

376

237

200

200

237

200

183

166

166

136

130

123 

123

Nov.

110

110

110

no

110

no

550

237

279

279

326

279

237

237

237

237

237

237

237

237

237

200

200

200

200

166

166

166

166

166

Dec.

166

136

136

136

136

136

136

136

136

98

98

98

98

98

166

326

690

488

376

326

279

279

1,540

1,540

1,540

1,540

1,660

1,540

1,230

690 

620

NOTE. Daily discharge computed from a rating curve well defined below 2,000 second-feet.
20 SURFACE WATER SUPPLY, 1911, PART H.

Monthly discharge of Roanoke River at Roanoke, Va.,for 1911. 

[Drainage area, 388 square miles.]

Month.

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

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

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

Discharge in second-feet.

Maximum.

1,900 

1,230 

1,780 

2,900 

403 

488 

1,030 

376 

237 

2,580 

550 

1,660

2,580

Minimum.

166 

237 

200 

376 

151 

136 

86 

65 

82 

76 

110 

98

65

Mean.

512 

408 

659 

982 

217 

199 

191 

107 

110 

213 

212 

535

362

Per

square 

mile.

1.32 

1.05 

1.70 

2.53 

.559 

.513 

.492 

.276 

.284 

.549 

.546 

1.38

.933

Run-off 

(depth in 

inches on 

drainage 

area).

1.52 

1.09 

1.96 

2.82 

.64 

.57 

.57 

.32 

.32 

.63 

.61 

1.59

12.64

Accuracy.

A. 

A. 

A. 

A. 

A. 

A. 

A. 

A. 

A. 

A. 

A. 

A.

ROANOKE RIVER AT OLD GASTON, N. C.

Location. At bridge of Roanoke Railway Co. at Old Gaston, N. C., 1J miles north 

of Thelma, N. C., about three-fourths of a mile below the mouth of Indian Creek, 

and 2£ miles above the mouth of Deep Creek.

Records available. December 7 to 31, 1911.

Drainage area. 8,350 square miles.

Gage. Standard chain gage attached to outside of guard timber on downstream side 

of second span from right end of decked plate girder bridge of Roanoke Railway 

Co.

Channel. Fairly permanent. Point of control, about 1 mile below, is of rock and 

probably permanent.

Discharge measurements. Made from downstream side of bridge to which gage 

. is attached. Measuring section broken by 11 bridge piers.

Floods. Flood of 1877 highest known in this locality. No definite marks preserved 

at Old Gaston, but from authentic information regarding the crest height as 

observed in 1877, the approximate height has been determined as about 19 feet, 

referred to present gage datum. The corresponding discharge is about 275,000 

second-feet.

Winter flow. Ice sometimes forms to considerable thickness at this station. Relation of gage height to discharge probably not affected by ice during December, 

1911.

Artificial control. It has been stated by those engaged in the operation of power 

plants at Roanoke Rapids and Weldon that a weekly trough has been noticed to 

occur on Tuesday or Wednesday during periods of low water. Such troughs have 

been said to be due probably to the weekly shut down of large power plants 

farther upstream.

Accuracy. Gage observer considered reliable. The gage being situated about 1 

mile from the lower end of a pool approximately 3 miles long, the station is not 

very sensitive. The left bank overflows in extreme floods, but a fair determination can be made of the overflow discharge around the bridge.

Cooperation. Station maintained in cooperation with the Virginia-Carolina Power 

Co., William C. Whitner, president.
SOUTH ATLANTIC COAST BASINS. 21

The following discharge measurement was made by H. J. Jackson: 

December 8, 1911: Gage height, 1.95 feet; discharge, 3,590 second-feet. 

Additional measurements made in 1912 were used in determining the rating. 

See also discharge measurement of Roanoke River at Weldon, N. C., made December 10, 1911, given under miscellaneous measurements, page 84.

Daily gage height, infect, and discharge, in second-feet, of Roanoke River at Old Gaston,

N. C., for 1911.

[R. A. Howell, observer.]

Day.

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

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

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

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

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

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

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

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

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

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

December.

Gage 

height.

2.0 

1.9

1.8 

1.7

Discharge.

3,750 

3,450 

3,160 

2,880

Day.

ll..............

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

1O

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

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

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

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

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

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

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

December.

Gage 

height.

1.8 

1.8 

1.6 

1.9 

2.5

2.2 

4.6 

6.3 

5.4 

4.0

Discharge.

3,160 

3,160 

«2,610 

3,450 

5,400

4,380 

15,400 

27,400 

20,700 

ol2,000

Day.

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

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

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

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

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

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

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

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

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

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

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

December.

Gage 

height.

3.5 

4.6 

4.6 

6.9

7.5

6.1 

5.8 

5.0 

4.4 

3.9 

3.5

Discharge.

9,500 

15,400 

15,400 

32,400 

37,800

25,900 

o23,600 

17,900 

14,200 

11,500 

9,500

o Wednesday; see " Artificial control."

NOTE. Daily discharge computed from a rating curve well defined between 1,900 and 33,300 second-feet 

and fairly well denned between 34,200 and 181,000 second-feet. Above 194,000 second-feet the rating curve 

is assumed a tangent.

YADKIN OB PEEDEE RIVER BASIN. 

YADKIN EIVEE NEAE SALISBUEY, N. C.

Location. At the highway bridge known as the Piedmont Toll Bridge, 1,000 feet 

above the Southern Railway bridge, 6 miles east of Salisbury, and about 5 miles 

below the mouth of South Yadkin River.

Records available. September 24, 1895, to December 31, 1909; September 1, 1911, 

to December 31, 1911.

Drainage area. 3,400 square miles.

Gage. Standard chain gage attached to the highway bridge. From the date of 

establishment to May 31, 1899, the gage was at the Southern Railway bridge, and 

from the latter date it was at the highway bridge until moved back to the railroad 

bridge early in the year 1903, where it remained until the end of the year 1905. 

Since January 1,1906, the gage has been at the highway bridge on the same datum 

as originally established there in 1899. The last gage at the railroad bridge read 

the same as the gage at the highway bridge at gage height 3.2 feet, but was not 

the same for higher and lower stages. There is some uncertainty as to the datum 

of the original gage at the railroad bridge.

Channel. Practically permanent; wide and rather rough.

Discharge measurements. Made from the highway bridge. During the time that 

the gage was at the railroad bridge most of the measurements were made from that 

bridge.

Winter flow. Ice or snow have little if any effect at this station.

Artificial control. There are some developed powers on the river and tributaries 

above which may slightly affect the flow.

Cooperation. Maintained in cooperation with the North Carolina Electric & Power 

Co.
22 SURFACE WATER SUPPLY, 1911, PART H.

Discharge measurements of Yadkin River near Salisbury, N. C., in 1911.

Date.

Sept. 20

21

21

Hydrographer.

R. E. Robertson.. . .......................................................

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

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

Gage 

height.

Feet. 

1.73

1.78

1.82

Discharge.

Sec.-jt. 

1,290

1,290

1.410

Daily gage height, in feet, of Yadkin River near Salisbury, N. C.,for 1911. 

[J. T. Yarbrough, observer.]

Day.

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

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

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

4..... ;........

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

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

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

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

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

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

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

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

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

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

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

Sept.

2.95

2.9

2.25

2.15

2.05

O R

2.9

2.45

2.05

1.85

2.2

2.4

2.1

1.95

1.9

Oct.

1.9

1.9

1.85

1.92

1.85

1.87

1.85

1.75

1.8

1.85

2.15

2.35

2.1

1.8

Nov.

2 9

2.15

1.83

1.95

1 95

2.15

2 A

3.0

3 1

3 A

3.1

2.75

9 Q5

3

0

2.75

Dec.

2.5

2.3

2.35

2

0

2.15

2

0

2.15

2.15

0 0

2.25

2.1

2.15

2.2

2.15

Day.

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

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

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

10

OA

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

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

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

OR

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

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

9Q

30

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

Sept.

2.0

1.75

1.8

1.75

1.75

1.8

3.5

4.2

2.8

2.45

2.15

2.2

2.0

2.0

2.1

Oct.

1.93

1.98

5.8

7.6

3 1

2.75

5.7

5.0

3.3

2.8

2.55

2.4

2.35

2.3

2.2

Nov.

2.5

2.5

2.45

3.1

2.85

2.6

2.45

2.35

2.35

2.25

2.35

2.3

2.3

2.75

2.8

Dec.

2.55

4.1

3.5

2.85

2.6

9 O

Q ft

6.1

6.0

5.0

4.1

3.8

3.8

3.3

3.0

3.0

Daily discharge, in second-feet, of YadMn River near Salisbury, N. C.,for 1911.

Day.

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

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

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

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

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

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

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

9

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

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

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

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

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

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

Sept.

4,240

4,090

2,290

2,060

1 840

3,210

4,090

2,800

1,840

1,440

2,170

2,660

1 Q4fl

1,630

1,530

Oct.

1,530

1,530

1.440

1,570

1 440

1,470

1,440

1,250

1,340

1,440

2,060

2,540

2,540

1,940

1,340

Nov.

2,170

2,060

1.400

1,630

1,630

2,060

4,400

4,720

5,740

4,720

3,640

5,050

3,640

Dec.

9 twn

2,410

2,290

2,540

2 i7n

2,060

2,060

2,060

2,290

1,940

2,060

2,170

2,060

Day.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Sept.

1,730

1,250

1,340

1,250

1,250

1,340

6,100

8,770

3,790

2,800

2,060

2,170

1,730

1,730

1,940

Oct.

1,590

1,690

15,800

24,800

8,370

4,720

3,640

15,300

12,200

5,390

3,790

3,0?0

2,660

2,540

2,410

2,170

Nov.

2,930

2,930

2,800

4,720

3 Q4fl

3,210

2,800

2,540

2,540

2,290

2,540

2,410

2,410

3,640

3,790

Dec.

3,070

8,370

6,100

3,940

3 O1 ft

4,090

6,460

17,200

16,800

12,200

8,370

7,210

7,210

5,390

4,400

4,400

NOTE. Daily discharge computed from a rating curve fairly well defined below 21,700 second-feet.

Monthly discharge of Yadkin River near Salisbury, N. C.,for 1911.

[Drainage area, 3,400 square miles.]

Month.

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

Discharge in second-feet.

Maximum.

8,770 

24,800 

5,740 

17,200

Minimum.

1,250 

1,250 

1,400 

" 1,940

Mean.

2,570 

4,360 

3,180 

4,900

Per 

square 

mile.

0.756 

1.28 

.935 

1.44

Run-off 

(depth in 

inches on 

drainage 

area).

0.84 

1.48 

1.04 

1.66

Accuracy.

A. 

B. 

A. 

B.
SOUTH ATLANTIC COAST BASINS.

YADKIN EIVER NEAR PEEDEE, N. C.

Location. At a private ferry about 1,500 feet below the dam of the Rockingham 

Power Co., half a mile below the mouth of Smiths Creek, and 1 mile above Partridge Creek.

Records available. August 9, 1906, to December 31, 1911.

Drainage area. Not.determined.

Gage. Vertical timber gage on right bank above the ferry landing.

Channel. Wide with rough bed, mostly rocks, some of which project from surface at 

low water. Current irregular.

Discharge measurements. Made from the ferry boat.

Artificial control. The large water-power plants just above the station and at 

Whitney, N. C., about 40 miles above, are nearly completed, and when put in 

operation will cause very great fluctuation at the gage. The ta'ilrace of the Rockingham Power Co.'s plant empties into the river below the gage, so there will be 

no flow past the gage at times when this plant is using all the flow of the river. 

Up to the end of 1911 there has not been much artificial regulation of the flow.

Accuracy. Records unreliable at low stages.

Cooperation. All gage heights have been furnished the Geological Survey by the 

engineers of the Rockingham Power Co., who have also made some of the discharge 

measurements.

Discharge measurements of Yadkin River near Peedee, N. C., in 1911.

Date.

27

Hydrographer.

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

&,

Feet. 

87.92

87.58

Discharge.

Sec.-ft. 

4,350

3,900

Daily gage height, in feet, of Yadkin River near Peedee, N. C.,for 1911. 

[W. S. Ide, observer.)

Day.

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

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

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

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

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

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

ID.. ........... --

11......:........

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

28

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

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

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

Jan.

88.6 

88.65

90.35

97.0

95.5

92.35

90.3

89.4

88.95

88.65

8a35

88.2

88.1

88.0

87.95

87.8

87.75

87.7

87.75

87.85

87.85

87.8

87.8

87.75

87.8

87.75

87.7

87.7

87.65 

87.6

87.6

Feb.

87.65 

87.65

87.65

87.65

87.5

87.55

87.7

87.6

87.85

92.85

91.85

90.6

90.25

89.7

89.1

88.75

88.5

88.3

88.2

88.1

88.25

88.25

88.1

87.95

87.8

87.75

87.7

87.7

Mar.

87.65 

87.7

87.8

87.85

87.7

87.6

87.7

87.45

90.0

89.95

89.25

88.8

88.55

90.05

90.55

90.15

89.1

89.0

88.3

90.15'

89.2

88.55

88.25

88.05

88.15

89.5

89.7 

89.2

88.9

Apr.

88.1

88.05

87.95

88.55

92.05

91.85

94.4

92.55

90.65

89.65

89.25

89.05

89.2

92.7

91.9

90.45

89.65

89.4

89.65

89.5

89.05

88.75

88.55

88.45

88.3

88.2

88.1 

88.08

May.

88.1 

88.15

88.2

88.05

87.85

87.75

87.7

87.7

87.8

87.65

87.7

87.6

87.75

88.1

88.1

88.45

88.08

87.75

87.6

87.45

87.3

87.25

87.35

87.3

87.35

87.25

87.1

87.05

86.95 

86.95

87.05

June.

87.0 

86.95

86.9

87.0

87.05

86.95

87.1

88.35

88.1

88.6

87.35

87.6

87.4

87.4

87.15

87.0

86.8

86.9

87.95

87.85

87.6

87.4

87.2

87.1

87.2

87.2

87.1

86.9 

87.35

July.

87.5 

87.1

86.95

86.7

86.7

86.75

86.9

86.75

86.8

87.1

87.25

87.05

86.9

86.9

87.0

89.3

88.3 

87.5

87.2

87.0

86 9

86.8

86.8

86.7

86.65

86.65

86.65

86.6

86.55 

86.45

86.45

Aug.

86.4 

86.4

86.45

86.75

87.2

87.1

88.4

87.75

87.65

87.15

86.8

86.6

86.6

86.6

86.55

87.3

87.0

86.7

86.85

87.05

87.5

86.75

86.5

8,6.5

86.5

86.4

86.48

86.68

87.4 

88.05

92.55

Sept.

91.88 

89.35

88.55

87.8

88.45

90.2

90.25

89.1

88.15

87.6

87.05

86.9

87.35

87.25

87.0

86.75

86.7

86.7

86.58

86.6

86.95

87.78

88.32

90.28

88.7

87.98

87.48

87.25

87.18 

87.08

Oct.

87.05 

86.98

86.8

86.85

86.82

86.8

86.8

86.75

86.75

86.75

86.85

86.9

87.35

87.65

87.6

87.1

86.85

89.7

95.0

QO 0

Qfi O

88.8

88.6

92.4

92.1

89 4

88.5

88.1

88.0 

87.6

87.65

Nov.

87.45 

87.4

87.25

87.2

87.25

87.35

87.4

88.05

91.1

94.0

91.15

90.1

88.9

88.82

88.88

88.52

88.2

87.95

88.55

89.05

88.72

88.25

87.95

87.75

87.65

87.7

87.7

87.7

87.65 

89.55

Dec.

88.7 

88.2

87.9

87.8

87.7

87.6

87.5

87.35

87.3

87.45

87.35

87.35

87.45

87.35

87.5

89.8

93.65

92.5

90.45

89.25

89.65

92.7

95.4

98.55

96.2

O9 1S

O1 1

90.55 

89.85

ao i
24 SURFACE WATER SUPPLY, 1911, PART H.

Daily discharge, in second-feet, of Yadkin River near Peedee, N. C.,for 1911.

Day.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

29.'.............. 

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

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

Jan.

5,930

6,040

10,300

10,200 

7,850

6,760

6,040

5,360

5,010

4,790

4,570

4

ARt)

4,130

4,020

3,920

4,020

4,240 

4,240

4,130 

4,130

4,020

4,130

4,020

3,920

3,820 

3,710

3,710

Feb.

3,820

3,820

3,820 

3,820

3,500

3,600

3,920

14,300

10,900

10,000

8,600

7,120

6,280

5,700

4,790 

5,120

5,120 

4,790

4 460

4,130

4,020

3,920

Mar.

3,820

S

oon

4,130

3,920

3,710

3,920 

3,400

9

oon

9,250

7,480

5,820

9,510

10,800

9,770

7,120

9,770

7,360 

5,820

5,120

4,680

4 900 s'loo

8,600 

7,480

6 

' 640

Apr.

4,790 

4,680

4,460

5,820

\A orin

11,100

8,480

7,480

7,000

7 3ftft

14,400

10,600

8,480

7,850 

8,480

8,100 

7 non

6,280

5,820

5

KOA

5,240

5,010

4,790

4 7Kfi

May.

4,790

4 900

5,010 

4,680

4,240

4,020

3,920 

3,920

4,130

3,710

4,020

4,790

A 7Qft

5,580

4,750

4,020

3,710

3,400 

3,100

3,000 

3,200

3 1 ftft

3,200

3,000

2,700

2,600

2,600

June.

2,510

"2,"5i6

2,600

2,700

A. 7on

5,930

3,200

3,710

3,300

3,300

2,800

2,510

4,460

4,240 

3,710

3,330 

2,900

2,700

2,900

2,900

2,700

"3,"266"

July.

3,500

2,700

2,700

3,000

2,600

2,510

7,600

5,240

3,500

2,900

2,510

.......

Aug.

.......

2,900

2,700

5,470 

4,020

3,820

2,800

3,100

2,510

2,600 

3,500

3,300 

4,680

Sept.

14,400

7,720

5,820 

4,130

5,580

9,900

10,000 

7,120

4,900

3,710

2,600

3,200

3,000

2,510

4,090 

5,290

10,100

6,160

4,530

3,460

3,000

2,860 

2,660

Oct.

2,600

.......

3,200

3,820

3,710

2,700

8,600

9,900

6,400 

5,930

7,850

5,700

4,790

4,5?0 

3,710

3,820

Nov.

3.400

3,300

3,000 

2,900

3,000

3,200

3,300 

4,680

12,300

12,400

9,604

6,640

6,450

6,590

5,750

5,010

4,460

5,820

7,000 

6,210

5,120 

4,460

4,020

3,820

3,920

3,920

3,920

3,820 

8,220

Dec.

6,160

5,010

4,350 

4,130

3,920

3,710

3,500 

3,200

3,100

3,400

3,200

3,200

3,400

3,200

3,500

8,860

16,600

7,480 

8,480

12,300

10.800 

8,990

7,600

NOTE. Daily discharge computed from a rating curve fairly well defined between 2,700 and 13,400 secondfeet. Below 2,500 and above 15,000 second-feet the rating is very uncertain and daily discharge has not 

been computed.

PEEDEE EIVER AT CHERAW, S. C.

Location. At the highway bridge in Cheraw, S. C., below the bridge of the Seaboard 

Air Line Railway.

Records available. April 1, 1891, to August 27, 1908, and November 2, 1909, to 

December 31, 1911.

Drainage area. 6,670 square miles.

Gage. Vertical timber attached to bridge pier. The original gage and the bridge to 

which it was attached were washed away August 27, 1908. The rating for recent 

years would probably not apply to these old gage heights, and it is not certain 

that the new gage is set on the same datum as the former gage.

Discharge measurements. Made from the highway bridge to which the gage is 

attached. Some measurements have been made at the Seaboard Air Line Railway bridge one-half mile above.

Artificial control. Probably does not seriously affect the 1911 records, but will 

greatly affect future records when the power plants near Rockingham, N. C., and 

Whitney, N. C., are in operation.

Accuracy. The rating is not yet developed for high stages.

Cooperation. Gage heights are furnished by the United States Weather Bureau.
SOUTH ATLANTIC COAST BASINS. 

Discharge measurements of Peedee River at Cheraw, S. C., in 1911.

25

Date.

Sept. 23

25

25

Hydrographer.

R. E. Robertson. .................................................. ......

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

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

height.

Feet. 

1 97

6.16

5 fi7

Discharge.

Sec.-ft. 

3,270

8,120

7,750

Daily gage height, in feet, of Peedee River at Cheraw, S. C.,for 1911.

Day

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

29

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

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

Jan.

3.9

4.2

4.5

20.2

25.4

21.3 

14.2

8.5

5.8

4.7

4.2

3.9

3.7

3.5

3.2

3.0

2.9

2.8

3.9

4.0

3.7

3.2

2.9

2.8

2.6

2.5

2.5

2 4

2.3

2.2

2 2

Feb.

2.3

2.2

2.3

2.3

2.3

2.2 

2.1

2.1

2.2

2.3

14.2

11.0

8.7

6.2

7.4

5.5

4.1

3.2

3.4

3.3

3.1

3.1

2.9

3.1

3.1

2.9

2.7

2.6

Mar.

2.5

2.5

2.7

2.7

2.6

2.5 

2.5

2.7

6.1

7.3

5.9

5.0

4.3

4.0

8.9

9.1

6.7

5.2

4.1

3.3

3.1

7.4

6.5

4.3

3.2

2.9

2.9

4.1

6.9

7.1

5.8

Apr.

4.2

3.9

3.7

3.4

3.1

2.8 

2.6

9 8

17.8

18.5

13.3

8.5

6.4

4.8

5.1

11.2

14.8

10.9

8.1

6.0

4.8

6.1

5.6

4.7

4.1

3.7

3.4

3.1

3.0

3.0

May.

2.9

2.8

2.7

2.9

3.1

2.9 

2.6

2.4

2.3

2.3

2.2

2.1

2.0

3.3

3.1

2.9

2.7

3.2

2.9

2.2

2.0

1.9

1.8

1.7

1.6

1.6

1.6

1.6

1.5

1.5

1.5

June.

1.4

1.4

1.5

1.4

1.3

1.3

1.4

1.6

3.2

3.4

2.6

2.0

2.7

3.1

2.3

1.9

1.9

1.8

1.7

1.9

2.2

2.4

2.1

1.9

1.7

1.6

2.0

1.8

1.7

1.6

July.

1.5

1.5

1.4

1.4

1.3

1.3 

1.3

1 i

1.2

1.2

1.2

1.1

1.1

1.3

1.3

3.0

4.6

3.9

3.1

2.1

1.8

1.6

1.5

1.5

1.4

1.3

1.3

1.2

1.2

1.1

1.1

Aug.

1.0

1.0

.9

1.1

1.8

1.8 

1.6

1.6

2.8

2.5

2 1

1.8

1.5

1.3

1.2

1.1

1.1

1.0

1.4

1.5

1.8

2.9

2.1

1.8

1.6

1.4

1.3

1.3

1.8

2.8

9.0

Sept.

22.4

16.4

10.6

7.5

4.2

2.6 

4.6

10.8

6.8

3.9

2.3

2.0

1.8

1.7

1.6

1.5

1.5

1.4

1.3

1.2

1.1

1.1

2.8

5.6

9.5

6.3

3.4

2.2

1.9

1.9

Oct.

1.8

1.7

1.6

1.5

1.4

1.3 

1.3

1.2

1.2

1.2

1.2

1.4

1.8

1.6

1.4

1.3

1.2

2.0

14.0

22.2

15.3

8.0

4.4

8.1

13.5

10.3

6.2

4.0

4.2

4.0

3.2

Nov.

2.8

2.2

2.1

1.9

1.8

1.7 

1.7

2.3

6.0

19.0

18.4

11.3

6.1

5.8

4.6

4.2

4.6

3.8

3.5

3.0

2.8

2.5

3.7

3.0

2.8

2.8

2.7

2.6

3.0

3.7

Dec.

5.8

<; i

3 Q

i i

2.9

2.7 

2.6

2 A

2.4

2.1

1.9

1.7

1.6

1.5

1.4

5.0

16.0

19.3

14.7

8.4

5.6

13.1

20.0

30.4

29.5

26.6

22.4

17.2

12.7

9.5

7.3

Daily discharge, in second-feet, of Peedee River at Cheraw, S. C.,for 1909-1911.

Day.

1909. 

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

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

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

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

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

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

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

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

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

12............................ i^

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

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

Nov.

3,880

3,680

3,580

3,480

3,390

5,290

4,190

3,780

3,680

3,480

3,580

4,190

3 7QO

Dec.

3,210

3,210

3,300

3

AQf\

3,300

3,120

3,120

3,210

3,480

3,210

4,080

3,780

4,080

4,850

9

QAA

Day.

1909. 

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

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

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

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

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

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

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

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

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

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

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

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

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

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

ino-i

Nov.

3,580

3,580

3,480

3,390

3,390

3,390

3,300

3,210

3,210

3,480

3,300

3,210

3,210

3,300

3,210

Dec.

13,800

8,320

6,360

4,850

5,290

4,740

4,300

4,190

4,080

3,880

4,080

4,300

4,630

4,410

4,080

3,980
26 SURFACE WATER SUPPLY, 1911, PART II. 

Daily discharge, in second-feet, of Peedee River at Cheraw, S. C.,for 1909-1911 Con.

Day.

1910. 

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

1911. 

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

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

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

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

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

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

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

S.... ...........

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Jan.

3,780

3,580

3,390

3,210

4,080

4,520

4,080

3,680

3,980

4,520 

6,240

4,740

4,080

3,680

3,580

3,680

3,780

3,580

3,680

3,780

3,880

8,460

17,800

10,200

8,600

7,120

6,240

10,500

5,290

5,640

6,000

11,600

7,640

6,240 

5,640

5,290

5,070

4,850

4

COft

4,309

4,190

4,080

5 9Qfi

5,400

5,070

4,520

4 190

4 080

3,880

3

7OA

3,780

3,680

3,580 

3,480

3,480

Feb.

15,500 in <inn

7,380

6,600

6,860

6 480

5,640

5,290

4,630

4,960 

6,240

13,600

17 000

13,800

8,880

6,600

9,750

17,466

13,900

14,100

10,800

3,580

3,480

3,580

3,580

3,580

3,480

3,390

3,390

3,480

3,580

15,900

8,180

9

QAA

7,250

5,520

4,520

4 740

4^630

4,410

4,410

4 190

4,410 

4 190

3 980

3^880

Mar.

9,450

17,600

11,100

12,100

10,800

7,770 

6,120

6,480

10,500

11,900

10,200

7,120

6,360

5,400

5,290

5,180

5,070

4,960

4,850

4,850

4,740

4,630

4,410

4,300

4,190

4,080

4,080 

3,780

3,780

3,980

3 980

3,880

3,780

3,780

3,980

8,040

9,750 

7,770

6,600

5,760

5,400

to onft

12,600

8,880

6,860

5,520

4 630

4,410

9 QUO

S fiAft

5,760

4,520 

4 190

4 190

5,520

9,160 94.fnn

7,640

Apr.

3,980

3,980

3,880

3,780

3,780

3,880

3,980

4,080

3,980

3,880 

3,780

3,680

3,580

3,580

3,780

3,880

3

0 on

4,740

9,600

8,460

6,480

5,400

4,740

4,300

4,190

4,080

3,980

4,190

4,190

3,980

5,640

5,290

5,070

4 740

4,410

4,080

3,880

13,800

.......

11,600

8,460

6,360

6,730

16,300

11,000

7 QUO

6,360

8,040

7 QRO

5,520 

5,070

4 740

4' 410

4,300 

4,300

May.

4,080

3,980

3,780

3,680

3,680

3,480

3,300

3,300

12,400

14,500

9,020

6,2«0

4,850

4,410

4,190

4,080

3,980

3,780

3,680

3,580

3,980

4,080

3,880

3,880

4,080

4,300

3,980

3,680

3,580

3,390 

4,190

4,080

3,980

4,190

4,410

4,190

3,880

3,680

3,580

3,580 

3,480

3,390

3,300

4,630

4,410

4,190

3 Q&O

4,520

4 190

3' 480

3,300

3,210

3 ion

3,030

2,940 

2 940

2 Q4A

2 940

2^850 

2,850

2,850

June.

3,300

3,210

2,940

2,760

2,600

3,300

4,080

4,410

3,980

4,630 

6,990

9,300

14,500

12,600

7,900

8,180

6,600

5,290

4,740

4,630

4,410

4,190

3,880

3,680

2,760

2,760

2,850

2,760

2,680

2,680

2,760

2,940

4,520

4,740 

3,880

3,300

3,980

4,410

3,580

3,210

3,210

3,120

3,030

3,210

3,480

3,680

3,390

3,210

3,030 

2 940

3

OrtA

3,120

3,030 

2,940

July.

3,780

3,580

3,780

3,880

3,680

3,390

3,300

3,300

5,070

5,400 

5,520

6,120

7,2oO

6,360

6,860

12,600

10,000

6,860

5,880

7,900

5,640

4,630

3,880

3,480

3,300

3,300

3,580

4,850

4,410

3,390 

2,850

2,850

2,760

2,760

2,680

2,680

2,680

2,680

2,600

2,600 

2,600

2,520

2,520

2,680

2,680

4,300

6,120

5,290

4,410

3,390

3,120

2,940

2 sin

2,850

2,760 

2,680

2 fisn

2,600 

2,520

2,520

Aug.

3,300

3,120

3,300

3,210

3,030

3,030

5,760

9,300

7,900

5,640 

4,740

4,080

3,780

3,390

3,780

3,480

3,300

3,480

3,300

3,120

3,030

3,030

2,940

2,940

2,850

5,760

4,520

4,080

3,780

3,480

3,880 

2,440

2,440

2,360

2,520

3,120

3,120

2,940

2,940

4,080

3,780 

3,390

3,120

2,850

2,680

2,600

2,520

2,520

2,440

9 7fin

2,850

3,120

4,190

S

oon

3,120

2,940 

2 760

2 680

2 fisn

3,120 

4,080

12,400

Sept.

4,520

7,640

13,400

9,900

6,600

5,180

5,880

6,000

5,400

4,520

4,190

3,880

3,680

3,480

3,390

3,300

3,210

3,120

3,030

3,030

2,940

2,940

2,940

2,8sO

2,850

2,760

15,200

10,000

5,640

3,880

6,120

15,500

9,020

5,290 

3,580

3,300

3,120

3,030

2,940

2,850

2,850

2,760

2 680

2,600

2

eoft

2

eoft

4 080

13,200

S

QOrt

4 740

3,480

3,210 

3,210

Oct.

2,940

3,120

3,120

2,940

2,850

2,850

2,940

3,120

8,600

13,900

7,900

5,640

4,630

4,080

3,780

3,580

3,390

4,190

5,640

5,400

4,740

4,740

4,190

3,980

3,780

3,480

3,210

3,120

3,030 

3,120

3,030

2,940

2,850

2,760

2,680

2,680

2,600

2,600

2,600 

2,600

2,760

3,120

2,940

2,760

2,680

2,600

3,300

10,800

5,880

11 000

14 600

8' 1£A

5,400

5,640 

5,400

4,520

Nov.

2,940

2,940

2,850

2,940

3,120

3,300

3,210

3,210

3,120

3,120 

3,030

2,940

2,940

2,850

2,850

2,850

2,760

2,760

2,760

2,760

2,680

2,680

2,680

2,680

2,600

2,600

2,600

2,600

2,760

3,030

4,080

3,480

3,390

3,210

3,120

3,030

3,030

3,580

7,900

16,500

8,040

7,640

5,640

6,120

5,180

4,850

4,300

4,080

3,780

4,300

4,080 

4,080

3

QQA

3,880

4,300 

5,070

Dec.

2,940

2,«50

2,760

2,760

2,850

3,120

3,390

5,760

10,000

8,180 

5,180

3,980

3,580

3,480

3,390

3,300

3,210

3,120

3,300

3,580

3,480

3,390

3,300

3,300

4,520

6,120

5,880

6,240

6,000

4,520

4,850 

7,640

6,730

5,290

4,410

4,190

3,980

3,880

3,680

3,680

3,390

3,210

3,030

2,940

2,850

2,760

6,600

11,400

7,380

......

9,750

NOTE. Daily discharge computed from a rating curve that is fairly well defined between 3,000 and 14,000 

second-feet. On days for which no discharge is given it was greater than 17,800 second-feet.
SOUTH ATLANTIC COAST BASINS.

SAVANNAH RIVER BASIN. 

TALLULAH EIVEE AT TALLULAH FALLS, GA.

Location. At the wagon bridge at Tallulah Falls, about one-fourth mile above the 

beginning of the falls proper and 3J miles above the junction of Tallulah and 

Chattooga rivers. No important streams flow into Tallulah River below the 

station.

Records available. August 29 to October 19, 1900; January 18 to December 31, 

1901; July 15, 1904, to December 31, 1911.

Drainage area. 191 square miles.

Gage. Standard chain gage attached to the bridge; datum and readings same as the 

original vertical gage.

Channel. Rocky bed, rather deep; slow current at low stages, becoming very swift 

at high stages. Some change of rating has occurred, probably caused by bowlders 

lodging on or washing away from shallow, rocky crest a short distance below.

Discharge measurements. Made from the upstream side of the wagon bridge.

Accuracy. For flood stages above gage height 6 feet the rating is not well developed.

Cooperation. Station maintained in cooperation with the Northern Contracting Co.

Discharge measurements of Tallulah River at Tallulah Falls, Ga., in 1911.

Date.

Mar. 14

14

Dec. 13

13

Hydrographer.

M.'R.'H.aXl.. .............................................................

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

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

Gage 

height.

Feet. 

1.35

1.34

1.21

1.21

Discharge.

Sec.-ft. 

352

353

308

311

Daily gage height, in feet, of Tallulah River at Tallulah Falls, Ga.,for 1911. 

[Wiley Pitts, observer.]

Day.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Jan.

2.0

3.6

4.3

3.2

2.4

2.1

2.0

1.9

1.75

1.7

1.6

1.55

1.5

1.5

1.4

1.4

1.4

1.45

1.45

1.4

1.4

1.4

1.35

1.3

1.25

1.35

1.4

1.3

1.3

1.4

1.4

Feb.

1.4

1.3

1.25

1.45

1.4

1.4

1.4

1.6

2.2

2.05

1.8

1.9

1.8

1.75

1.7

1.6

1.6

1.55

1.5

1.95

1.65

1.55

1.5

1.45

1.4

1.4

1.5

1.4

Mar.

1.65

1.6

1.5

1.45

1.4

1.4

1.4

1.45

1.4

1.4

1.4

1.4

1.35

1.35

1.35

1.3

1.3

1.3

1.4

1.6

1.4

1.3

1.3

1.3

1.3

1.9

2.35

1.85

1.8

1.7

1.6

Apr.

1.5

1.5

1.5

1.85

5.8

3.7

3.2

3.2

3.2

2.75

2.7

4.0

3.8

3.6

3.3

2.95

2.75

2.65

2.8

2.85

2.6

2.45

2.4

2.3

2.25

2.2

2.15

2.2

2.3

2.25

May.

2.5

2.35

2.2

2.1

2.1

2.05

2.0

2.0

2.0

1.9

1.9

1.8

1.8

1.8

1.8

1.7

1.7

1.7

1.7

1.7

2.4

1.8

1.85

2.05

1.75

1.7

1.6

1.6

1.6

1.5

1.55

June.

1.55

1.4

1.4

1.5

1.4

1.4

1.4

1.45

1.7

1.4

1.3

1.3

1.2

1.2

1.2

1.2

1.2

1.2

1.35

1.35

1.35

1.2

1.4

1.2

1.15

1.1

1.1

1.1

1.1

1.15

July.

1.0

i nc

1.0

1.05

1.1

1.05

1.0

1.05

1.35

1.1

1.05

1.15

1.2

1.2

1.15

1.35

2.5

1.3

1.2

1.1

1.3

1.35

1.1

1.1

1.3

1.0

1.0

1.0

.95

.88

.88

Aug.

1.15

1.4

2.3

2.2

1.7

1.55

1.4

1.45

1.3

1.15

1.1

1.05

1.0

1.05

1.05

1.05

1.0

1.0

.95

.9

.85

.78

.78

.78

.78

.78

.78

.80

.78

1.55

1.35

Sept.

1.05

.9

.9

.95

.9

1.55

1.2

1.0

.95

1.0

1.25

.95

.9

.8

.78

.1.0

.9

.9

.85

.78

1.05

1.0

2.2

1.45

1.3

1.1

.95

.95

.9

.9

Oct.

0.8

.8

.8

.75

.75

.7

.7

.7

.75

.8

2.6

1.8

1.3

1.1

.95

.95

3.4

2.8

1.9

1.65

1.5

1.65

1.4

1.3

1.2

1.2

1.2

1.15

1.15

1.1

1.1

Nov.

1.05

.97

.97

.97

1.05

1.4

1.55

1.5

2.6

1.8

1.6

1.55

1.6

1.5

1.45

1.45

1.4

1.9

1.6

1.45

1.4

1.35

1.4

1.5

1.35

l.rf

1.3

1.95

1.7

1.5

Dec.

1.5

1.4

1.3

1.25

1.25

1.3

1.25

1.25

1.17

1.2

1.3

1.3

1.25

1.2

1.3

2.0

1.65

1.55

1.45

1.5

2.7

3.0

3.0

2.5

2.2

2.3

3.2

2.6

2.2

2.1

3.3
28 SURFACE WATER SUPPLY, 1911, PART H.

Daily discharge, in second-feet, of Tallulah River at Tallulah Falls, Ga., for 1911.

Day.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

JJ4.... ...........

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

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

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

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

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

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

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

Jan.

610

1,730

2,580

1,330

800

655

610

565

500

480

440

420

400

400

365

365

365

382

382

365

365

365

348

330

312

348

365

330

330

365

365

Feb.

365

330

312

382

365

365

365

440

700

632

520

565

520

500

480

440

440

420

400

588

460

420

4flft

382

365

365

400

365

Mar.

460

440

400

382

365

365

365

382

365

365

365

365

348

348

348

330

330

330

365

440

365

330

330

 330

330

565

775

542

COA

480

iHt\

Apr.

400

400

400

542

4,730

1,840

1,330

1,330

1,330

1,000

970

2,200

1,960

1,730

1,420

1,140

1,000

am

1,030

1,060

910

825

QAA

750

725

700

678

700

750

725

May.

850

775

700

655

655

632

610

610

610

565

565

520

520

520

520

480

480

480

480

480

800

520

ut

632

500

480

440

440

440

400

420

June.

420

365

365

400

365

365

365

382

480

365

330

330

295

295

295

295

295

295

348

348

348

295

365

295

280

265

265

265

265

280

July.

237

251

237

251

265

251

237

251

348

265

251

280

295

295

280

348

850

330

295

265

330

348

265

265

330

237

237

237

224

207

207

Aug.

280

365

750

700

480

420

365

382

330

280

265

251

237

251

251

251

237

237

224

212

200

185

185

185

185

185

185

189

185

420

348

Sept.

251

212

212

224

212

420

295

237

224

237

312

224

212

189

185

237

212

212

200

185

251

237

700

382

330

265

224

224

212

212

Oct.

189

189

189

178

178

168

168

168

178

189

910

520

330

265

224

224

1,520

1,030

565

460

400

460

365

330

295

295

295

280

280

265

265

Nov.

251

230

230

230

251

365

420

400

910

520

440

420

440

400

382

382

365

565

440

382

365

348

365

400

348

330

330

588

480

400

Dec.

400

365

330

312

312

330

312

312

286

295

330

330

312

295

330

610

460

420

382

400

970

1,170

1,170

850

700

750

1,330

910

700

655

1,420

NOTE. Daily discharge computed from a fairly well-defined rating curve.

Monthly discharge of Tallulah River at Tallulah Falls, Ga., for 1911. 

[Drainage area, 191 square miles.]

Month.

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

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

May

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

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

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

Discharge in second-feet.

Maximum.

2,580 

700 

775 

4,730 

850 

480 

850 

750 

700 

1,520 

910 

1,420

4,730

Minimum.

312 

312 

330 

400 

400 

265 

207 

185 

185 

168 

230 

295

168

Mean.

567 

439 

402 

1,140 

559 

331 

289 

297 

25S 

367 

399 

573

468

Per 

square 

mile.

2.97 

2.30 

2.10 

5.97 

2.93 

1.73 

1.51 

1.55 

1.35 

1.92 

2.09 

3.00

2.45

Run-off 

(depth in 

inches on 

drainage 

area).

3.42 

2.40 

2.42 

6.66 

3.38 

1.93 

1,74 

1.79 

1.51 

2.21 

2.33 

3.46

33.25

Accuracy.

A. 

A. 

A. 

B. 

A. 

A. 

A. 

A. 

A. 

A. 

A. 

A.
SOUTH ATLANTIC COAST BASINS. 29

BROAD KIVER (OF GEORGIA) NEAR CARLTON, GA.

Location. At the Seaboard Air Line Railway bridge, 3 miles east of Carlton, Ga., 

and 2 miles above the mouth of South Fork of Broad River.

Records available. May 27, 1897, to December 31, 1911.

Drainage area. 762 square miles.

Gage. Standard chain gage attached to the railroad bridge; datum unchanged.

Channel. The bed of the stream is sand and gravel, and may be slightly changeable. 

The left bank overflows for about 400 feet at a gage height of 16 feet.

Discharge measurements. Made from the upstream side of decked railroad bridge.

Artificial control. The flow is affected little or not at all by artificial control.

Cooperation. Gage heights are furnished by the United States Weather Bureau.

No discharge measurements were made at this station during 1911.

Daily gage height, in feet, of Broad River (of Georgia) near Carlton, Ga.,for 1911.

[H. C. Power, observer.]

Day.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Jan.

3.0

3.5

4.6

4.9

4.6

3.5

3.1

2.7

2.4

2.6

2.3

2.5

2.3

2.0

2.3

2.1

2.3

2.5

2.3

2.2

2.4

2.5

2.3

2.4

2.2

2.4

2.7

2.4

2.3

2.5

2.2

Feb.

2.5

2.2

2.4

2.7

2.4

2.2

2.3

2.6

2.9

3.4

3.0

4.0

2.9

2.6

3.0

2.7

2.4

2.1

2.5

2.8

3.5

2.9

2.6

2.3

2.1

2.6

2.4

2.1

.......

Mar.

2.5

2.2

2.4

2.1

2.6

2.4

2.1

2.3

2.5

2.2

2.4

2.2

2.5

2.7

2.4

2.2

2.4

2.3

2.3

2.5

2.2

2.5

2.3

2.1

2.3

2.5

3.0

4.2

3.9

3.5

2.7

Apr.

2.3

2.5

2.2

2.7

3.2

4.6

3.9

7.2

6.4

5.5

3.4

4.4

5.5

5.2

4.6

4.2

3.5

3.3

3.0

2.5

2.9

2.4

2.7

2.4

2.2

2.5

2.3

9 1

2.8

2.5

May.

2.6

2.4

2.2

2.0

2.3

2.5

2.3

2.5

2.3

2.0

2.2

2.4

2.2

2.3

2.5

2.3

2.1

2.4

2.2

2.5

2.3

2.6

2.3

2.9

2.6

2.4

2.1

2 9

2.4

2.2

2.5

June.

2.2

2.4

2.2

2.1

2.2

2.4

2.2

2.3

2.0

2.2

2.3

2.2

2 ft

2.1

2.2

2.0

1.8

2 ft

2.2

5.8

3.8

3.4

2.3

2.0

2.1

2.2

2.4

2 9

2.0

2.4

July.

2.2

2.5

2.3

2.2

2.4

2.2

2.0

2.2

2.3

2.5

2.2

2.3

0 5

4.5

2.5

3.0

2.5

2.2

2.4

2.6

2.3

2.5

2.2

2.4

3.0

2.5

2.1

2.3

2.0

2.2

2.0

Aug.

2.3

2.5

2.9

4.1

3.5

2.3

2.1

2.3

2.5

2.2

2.3

2.1

2.2

2.9

2.2

2.4

2.2

2.1

2.4

2.3

2.1

2.2

2.4

2.2

2.4

2.3

2.4

9 9

9 1

2.3

2.6

Sept.

2.4

2.2

2.2

2.5

2.7

5.6

4.8

4.0

2.6

2.1

2.3

2.4

2.2

2.6

2.4

2.1

2.3

2.0

2.2

2.5

2.3

2.5

2.2

2.2

2.4

2.2

2.4

2

0

2.1

2.3

Oct.

2.3

2.1

2.4

2.2

2.0

2.1

1.8

2.2

2.4

2.2

2.7

2.5

2.3

2.1

1.9

2.2

2.4

4.4

3.5

2.5

2.7

4.5

5.1

4.3

3.2

2.8

2.5

2 ft

2.4

2.1

2.3

Nov.

2.4

2.6

2.3

2.1

2.2

2.0

4.5

4.0

6.5

5.0

3.9

2.8

2.4

2.2

2.4

2.1

2.3

2.0

2.3

2.1

2.2

2.4

2.2

2.0

2.3

2.3

2.1

2 ft

2.2

2.4

Dec.

2.3

2.0

2.0

2.2

1.9

2.1

2.3

2.1

2.3

2.2

2.0

1.9

2.1

2.2

2.4

2.8

2.3

3.2

2.7

3.0

4.0

fi Q

13.9

8.9

6.5

3.5

2.5

2 7

0. ^

2.5

2.9
30 SUBFACE WATEE SUPPLY, 1911, PART H.

Daily discharge, in second-feet, of Broad River (of Georgia) near Carlton, Ga.,for 1911.

Day.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Jan.

1,070 i 4P»n

2,450

2,770

2

Afif\

1,450

1,140

865

695

QrtC

645

7PLfl

645

cflfi

AJK

545

645

750

645

CQE

fine

7Cfl

645

695

CQC

AQC

865

AQC

645

750

CQC

Feb.

750

595

695

865

695

595

<u«;

805

1,000

1,370

1,070

1,880

1,000

OAK

1,070

865

695

545

750

930

1 4f\ft

1 ? 805 000

A4^

ZAK

one

695

KAK.

Mar.

750

PLQC

695

545

805

695

545

750

CQC

695

CQC

7Cfl

865

fiQK

CQC

fine

645

7CA

CQC

7CA

KAK

ejc

7KA

1,070

2 nfift

i 7on

1,450

865

Apr.

645

7 Pin

ene

865

1,220

2,450

1 790

5,640

4 ifin

3 440

1,370

2,260

3

-1 f\f\

2 450

2 nfin

1 Afif)

1,290

7 eft

1 flflA

695

865

695

595

7 fin

7 Pin

QQfl

750

May.

805

fiQPL

595

cfin

A4*»

750

RAK

750

645

500

595

fiQC

595

645

7Cf»

645

545

695

595

7Kfl

645

805

645

1 000

805

AQC

545

CQC

695

CQC

7Cfl

June.

595

AQC

595

KAZ

CQC

695

CQC

500

CQC

645

CQE

500

545

EQE

500

420

cnn

595

3,800

1,700

1,370 <UP;

500

545

CQC

695

CQt

500

695

July.

595

750

645

595

695

595

500

595

645

750

595

645

750

2,350

7cn

1,070

7cn

595

695

805

645

750

595

«QC

1,070

750

545

645

500

CQC

500

Aug.

645

750

1,000

1 Q7ft

1,450

645

545

645

750

595

645

545

595

1 000

595

AQC

595

545

695

645

595

695

PLQPL

695

645

695

595

750

A4**

805

Sept.

695

595

595

750

865

3,560

2,660

1,880

805

545

645

695

595

805

695

545

645

500

595

750

645

750

595

695

595

695

645

545

645

Oct.

645

545

695

KQC

500

545

420

595

695

595

865

7cn

645

545

460

CQC

695

2,260

1,450

750

865

2,350

2,990

2,160

1,220

930

750

500

695

545

645

Nov.

695

805

645

595

500

2,350

1,880

4,690

2,880

1,790

930

695

595

695

545

645

500

645

- 545

595

695

595

500

645

645

545

500

595

695

Dec.

645

500

500

595

460

545

645

545

645

595

500

460

545

595

695

930

645

1,220

865

1,070

1 880

5,220

16,200

8,070

4,690

1,450

750

865

645

750

1,000

NOTE. Daily discharge computed from the rating curve used from 1906 to 1910, the curve being well 

defined below 9,800 second-feet. As the station was not visited during 1911 it is not known what conditions 

may have affected the rating, therefore the above estimates should be used with caution.

Monthly discharge of Broad River (of Georgia) near Carlton, Ga.,for 1911. 

[Drainage area, 762 square miles.]

Month.

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

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

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

Discharge in second-feet.

Maximum.

2,770 

1,880 

2,060 

5,640 

1,000 

3,800 

2,350 

1,970 

3,560 

2,990 

4,690 

16,200

16,200

Mi-pirn rim

500 

545 

545 

595 

500 

420 

500 

545 

500 

420 

500 

460

420

Mean.

940 

861 

797 

1,630 

671 

753 

731 

736 

861 

919 

973 

1,770

970

Per 

square 

mile.

1.23 

1.13 

1.05 

2.14 

.881 

.988 

.959 

.966 

1.13 

1.21 

1.28 

2.32

1.27

Run-off 

(depth in 

inches on 

drainage 

area).

1.42 

1.18 

1.21 

2.39 

1.02 

1.10 

1.11 

1.12 

1.26 

1.40 

1.43 

2.68

17.32

NOTE. See note to daily-discharge table.
SOUTH ATLANTIC COAST BASINS. 31

ALTAMAHA RIVER BASIN. 

OCMTJLGEE BIVEB NEAR JACKSON, GA.

Location. At Pittman's Ferry, 8 miles southeast of Jackson, Ga., half a mile above 

the mouth of Yellow Water Creek and a short distance below Heards Creek. The 

station is 1J miles below the 100-foot dam and power plant of the Central Georgia 

Power Co.

Records available. May 18, 1906, to December 31, 1911.

Drainage area. 1,400 square miles.

Gage. Vertical staff in three sections on right bank of river upstream side of ferry 

landing; datum unchanged.

Channel. Bottom sandy; shifts considerably, but the shifting has little if any effect 

on the rating, as the control is formed by a rocky ledge about 400 feet below the

Discharge measurements. Made at the ferry, either from the ferry boat or a small

boat held in place by the ferry cable. 

Artificial control. During 1911, since the power plant of the Central Georgia Power

Co. has been in operation, the artificial regulation has very greatly affected the

distribution of the flow at low stages. 

Accuracy. The records are based on two gage height readings a day, but as there is a

large diurnal fluctuation, due to the operation of the power plant above, it is

possible that the estimates of daily discharge may be considerably in error for

individual days, especially at low stages. 

Cooperation. Gage observer paid by the Central Georgia Power Co.

The following discharge measurement was made by R. E. Robertson: 

October 3, 1911: Gage height, 4.09 feet; discharge, 552 second-feet.

Daily gage height, in feet, ofOcmulgee River near Jackson, Ga.,for 1911. 

[C. A. Pittman, observer.]

Day.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Jan.

4.35

4.35

4.65

4.6

4.5

4.0

3.62

3.62

3.65

3.52

3.5

3.5

3.35

4.1

4.1

4.1

4.1

4.15

4.15

4.1

4.5

4.65

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.5

Feb.

4.5

4.6

4.65

4.55

4.55

4.7

4.7

4.8

4.6

4.7

4.75

4.75

4.8

4.7

4.7

4.7

4.6

4.6

4.6

4.6

4.6

4.6

4.8

4.65

4.8

4.8

4.8

4.8

Mar.

4.7

4.65

4.6

4.7

4.7

4.7

4.7

4.7

4.7

4.7

4.7

4.7

4.8

4.8

4.7

4.6

4.8

4.8

4.7

4.75

4.75

4.75

4.7

4.7

4.7

4.35

4.1

4.0

3.98

4.0

4.2

Apr.

4.15

4.0

4.0

4.35

4.5

4.5

4.4

4.45

5.45

6.2

6.2

6.6

6.3

6.0

5.6

5.35

5.25

5.05

5.0

5.0

4.9

4.8

4.8

4.6

4.6

4.5

4.5

4.55

4.6

4.5

May.

4.6

4.6

4.55

4.5

4.45

4.35

4.35

4.3

4.25

4.3

4.35

4.35

4.1

4.65

4.45

4.35

4.3

4.3

4.2

4.25

4.3

4.35

4.45

4.6

4.9

4.75

4.65

4.45

4.45

4.3

4.2

June.

4.15

4.1

4.1

4.05

4.0

4.0

4.0

4.0

4.0

3.95

3.92

3.95

4.0

3.95

3.9

3.9

3.8

3.95

3.92

4.0

4.3

4.4

4.35

4.25

4.05

4.05

4.15

4.2

4.15

4.05

July.

4.05

3.98

4.0

3.95

4.0

4.0

3.95

4.05

3.95

4.4

4.6

4.45

4.5

4.6

4.6

5.1

5.6

5.5

5.1

4.9

4.65

4.6

4.48

4.42

4.45

4.48

4.45

4.38

4.28

4.15

4.15

Aug.

4.2

5.0

6.8

7.3

6.0

5.6

5.1

4.65

4.45

4.48

4.38

4.32

4.18

4.18

4.15

4.2

4.15

4.2

4.2

4.2

4.15

4.2

4.12

4.0

4.02

3.9

4.02

4.15

4.12

4.02

4.0

Sept.

3.92

3.95

3.95

3.98

3.95

3.98

4.05

4.02

3.98

3.95

4.0

3.95

4.0

4.0

4.02

3.95

3.88

4.0

4.05

4.05

4.05

4.02

3.98

3.92

3.98

4.0

3.98

4.05

4.0

3.98

Oct.

3.95

4.0

4.0

4.0

3.98

3.95

4.0

3.95

4.02

4.08

4.05

4.05

4.02

4.02

4.0

4.08

4.1

4.65

5.1

4.9

4.75

5.45

5.5

5.15

4.8

4.65

4.9

7.8

6.2

5.7

4.95

Nov.

4.85

4.85

4.65

4.6

4.4

4.5

5.0

5.3

6.8

7.5

6.4

5.7

5.3

5.05

4.8

4.7

4.6

4.6

4.6

4.6

4.5

4.5

4.5

4.55

4.48

4.38

4.48

4.6

4.45

4.42

Dec.

4.42

4.38

4.35

4.35

4.4

4.35

4.35

4.3

4.3

4.12

4.25

4.28

4.25

4.22

4.38

4.5

4.5

5.1

4.6

4.8

5.3

7.0

9.3

9.0

8.1

6.4

6.2

6.0

5.6

5.4

5.25

1520° WSP 302 13 3
32 SURFACE WATER SUPPLY, 1911, PART II.

Daily discharge, in second-feet, ofOcmulgee River near Jackson, Ga.,for 1911.

Day.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Jan.

730

730

1,160

1,080

925

390

178

178

190

146

140

470

470

518

518

470

925

1,160

1 080

1,080

1,080

1,080

1,080

1,080

1,080

925

Feb.

925

1,080

1,160

1,000

1,000

1,240

1,240

1,420

1,240

1,330

1,330

1,420

1 9Af\

1 9Jrt

1 9M\

1 080

1 080

1,080

1,080

1,080

1,080

1,420

1,160

1,420

1,420

1,420

Mar.

1,240

1,160

1 080

1,240

1,240

1,240

1,240

1 240

1^240

1,240

1,240

1,240

1,420

1,240

1,080

1,420

1,420

1,240

1,330

1,330

1,330

1 240

1*240

1,240

730

470

376

qon

565

Apr.

518

390

OQft

730

925

7on

858

2,740

4,^80

4,280

5,100

4 480

3,870

3,050

2,540

2,330

1,920

1,820

1,820

1,620

1,420

1,420

1 080

1^080

925

925

1 finn

1,080

925

May.

1,080

1,080

1,000

925

858

730

730

670

618

670

730

730

470

1,160

858

730

670

670

565

618

670

730

858

1,080

1,620

1,330

1,160

858

858

670

565

June.

518

470

470

430

390

390

390

390

390

355

334

355

390

355

320

320

260

355

334

390

670

790

730

618

430

430

520

565

520

430

July.

430

376

390

355

390

390

355

430

355

790

1,080

858

925

1,080

1,080

2,020

3,050

2,840

2,020

1,620

1,160

1,080

898

817

858

898

858

766

649

518

518

Aug.

565

1,820

5,510

6,540

3,870

3,050

2,020

1,160

858

898

766

694

546

546

518

565

518

565

565

565

518

565

489

390

406

320

406

518

489

406

390

Sept.

334

355

355

376

355

376

430

406

376

355

390

355

390

390

406

355

308

390

430

430

430

406

376

334

376

390

376

430

390

376

Oct.

355

390

390

390

376

355

390

376

406

454

430

430

406

406

390

454

470

1,160

2,020

1,620

1,330

2,740

2,840

2,130

1,420

1,160

1,620

7,560

4,280

3,260

1,720

Nov.

1,520

1,520

1,160

1,080

790

925

1,820

2,440

5,510

6,940

4,690

3,260

2,440

1,920

1,420

1,240

1,080

1,080

1,080

1,080

925

925

925

1,000

898

766

898

1,080

858

817

Dec.

817

766

730

730

790

730

730

670

670

489

618

649

618

586

766

925

925

2,020

1,080

1,420

2,440

5,920

10,600

10,000

8,180

4,690

4,280

3,870

3,050

2,640

2,330

NOTE. Dally discharge computed from a fairly well-defined rating curve.

Monthly discharge ofOcmulgee River near Jackson, Ga.,for 1911. 

[ Drainage area, 1,400 square miles.]

Month.

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

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

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

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

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

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

Discharge, in second-feet.

Maximum. 

i

1,160 

1,420 

1,420 

5,100 

1,620 

790 

3,050 

6,540 

430 

7,560 

6,940 

10,600

10,600

Minimum.

105 

925 

376 

390 

470 

260 

355 

320 

334 

355 

766 

489

260

Mean.

682 

1,210 

1,110 

1,840 

837 

444 

963 

1,190 

382 

1,350 

1,740 

2,410

1,180

Per 

square 

mile.

0.487 

.864 

.793 

1.32 

.598 

.317 

.688 

.850 

.273 

.964 

1.24 

1.72

.843

Run-off 

(depth in 

inches on 

drainage 

area).

0.56 

.90 

.91 

1.47 

.69 

.35 

.79 

.98 

.30 

1.11 

1.38 

1.98

11.42

OCMULGEE RIVER AT MACON, GA.

Location. At the Fifth Street Bridge in the city of Macon, near the Southern Railway passenger depot and about 500 feet above the Central of Georgia Railway 

bridge.

Records available. October 18, 1895, to December 31, 1911.

Drainage area. 2,420 square miles.
SOUTH ATLANTIC COAST BASINS. 33

Gage. The United States Weather Bureau gage originally used at this station is a 

heavy timber bolted to a pier of the Central of Georgia Railway bridge. A standard chain gage was installed October 9, 1905. These gages have been referred to 

the same datum and have given practically the same readings, varying slightly 

owing to surface slope between locations.

Channel. Both banks are high and neither is subject to overflow. The bed of the 

river is soft and shifting, and a great amount of change in the station rating curve 

has occurred as the result of changes in the river bed at and below the station.

Discharge measurements. Made from the downstream side of the highway bridge 

to which the gage is attached.

Artificial control. The large power dam near Jackson, Ga., put into operation late 

in 1910, is likely to cause considerable irregularity in the low-water flow at MaconAccuracy. As the station is situated below the fall line, rapidly rising or falling 

stages are likely to be attended by variations in surface slope, causing greater or 

less discharge than for the normal rating. The possible error in mean gage heights 

due to artificial control may cause the estimates for individual days to be considerably in error, especially at low stages.

Cooperation. Since June 1, 1899, all gage heights have been furnished by the 

United States Weather Bureau.

Discharge measurements of Ocmulgee River at Macon, Ga., in 1911.

Date.

July 27

27

14

Hydrographer.

R. E . Robertson ..........................................................

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

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

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

Gage 

height.

Feet. 

2.16

2.40

.66

.58

Discharge.

Sec.-ft. 

1,180

1,320

590

543

Daily gage height, in feet, of Ocmulgee River at Macon, Ga.,for 1911. 

[W. A. Mitchell, observer.]

Day.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

91

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

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

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

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

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

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

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

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

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

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

Jan.

2.4

2.0

6.1

9.4

5.3

3.9

2.9

1.6

1.4

1.3

1.0

1.0

.9

.9

1.4

1.4

1.6

1.5

1.5

1.5

1.5

2.1

2.5

2.5

2.6

9 K

2.5

2.5

2.5

2.4 

2.4

Feb.

2.3

2.3

2.5

2.7

2.5

2.3

9 7

2.7

2.9

2.9

3.0

5.2

4.8

4 4

3.6

3.1

3.2

2.9

2.8

2.8

3.3

3.0

2.8

2.8

3.1

3.0

2.8

2.8

.......

Mar.

3.0

3.0

2.6

2.5

2.5

2.6

2.6

2.7

2.7

2.6

2.6

2.6

2.8

2.8

2.7

2.2

2.6

2.7

2.5

9 t\

2.4

2.3

2.3

2.6

6.0

4.5

2.9

2.1

1.8

Apr.

1.6

1.5

1.4

1.2

1.4

3.3

3.3

2.6

3.5

6.5

8.4

9.0

11.4

irt 9

8.7

7.2

5.7

5.4

4.8

5.5

A. Q

4.3

3.7

3.2

3.1

2 7

2.6

2.6

2.6

2.5

May.

2.4

3.0

3.1

2.8

2.3

2.2

2.0

1.7

1.6

1.6

1.6

1.6

1.5

1.5

2.5

2.0

1.8

1.6

1.4

1.4

1.5

1.5

2.5

4.1

3.7

3.0

2.4

2.0

1.8 

1.6

June.

1.4

1.4

1.2

1.0

1.0

1.0

1.0

1.0

.9

.9

.9

.6

.6

.8

.8

.7

.8

.8

.8

2.8

1.5

1.4

9 ft

1.4

.8

1.0

1.3

1.2

July.

1.0

.8

.5

.4

.7

.6

1.0

.8

.8

.8

.7

2.2

2.0

9 7

8.8

5.4

8.6

7.3

6.2

4.4

3.5

3.0

2.7

9 9

1.9

1 Q

1.9

2.0

1.6

1.3

1.0

Aug.

O q

1.4

5.2

10.3

12.1

9.2

6.3

4.4

2.9

3.1

2

C

2.0

2.0

1.5

1.4

1.2

2

fi

1.7

4.8

1.5

1-4

1.0

1.0

.8

1.0

1.0

.8

.8

Sept.

0.5

.4

1.1

.7

1.0

.8

.8

.6

.4

.6

.7

.6

.8

.8 ' .7

.7

.9

.8

.8

1.7

1.0

.8

.8

.8

.8

Oct.

0.7

.7

.2

.7

.7

.8

.7

.7

.7

4.5

2.6

1.1

1.0

.8

.7

1.6

3.9

3.8

4.2

7.7

14.3

5.4

d 9

3.8

11.9

12.8

7.8 

6.0

Nov.

4.4

3.7

3.5

3.1

2.6

2.0

3.1

4.3

8.0

12.0

12.3

9.6

7.0

5.8

4.6

3.8

3.3

3.1

3.2

2.5

2.7

2.5

2.3

2.1

2.0

9 1

1.7,

2.2

2.3

2.2

Dec.

2.1

2.0

1.9

1.6

1.6

1.Z

1.7

1.6

1.5

1.4

1.3

1.3

1.5

1.5

1.5

4.6

3.5

2.9

3.0

2.6

10.0

9.5

17.5

16.4

14.8

19 A

10.8

10.3

8.9

7.4
34 SURFACE WATER SUPPLY, 1911? PART II.

Daily discharge, in second-feet, ofOcmulgee River at Macon, Ga.,for 1911.

Day.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Jan.

1,280

1,100

3,310

5.760

2,830

2,000

1,500

940

860

820

700

700

665

665

860

860

940

900 googoo

goo i i4.n

1,320

1,320

1,370

1,370

1,320

1,320

1,320

1,280

1,280

Feb.

1,240

1,240

1,320

1,420

1,320

1,240

1,420

1,420

1,500

1,500

1,550

2,770

2,530

2,290

1,850

1,600

1,650

1,500

1,460

1,460

1,700

1,550

1,460

1,460

1,600

1,550

1 itfift

1,460

Mar.

1,550

1,550

1,370

1,320

1,320

1,320

1,370

1,370

1,420

1,420

1,370

1,370

1,370

1,460

1,460

1,420

1,190

1,370

1,420

1,320

1,320

1,320

1,240

1,240

1,370

2,350

1,500

1,140

1,020

Apr.

940

900

860

780

860

1,700

1,700

1,370

1,800

3,550

4,920

5,400 7, gso

6,500

5,160

4 040

3,070 2,sgo

2,530

2,g50

2,590

2,230

1,900

1,650

1,600

1,420

1,370

1,370

1,370

1,320

May.

1,280

1,550

1,600

1,460

1,240

1,190

1,100

980

940

940

g40

g40

900

900

1,320

1,100

1,020

940

860

860

900

Qftft

1,320

2,890

2,110

1,900

1,550

1,280

1,100

1,020

940

June.

860

860

780

700

700

700

700

700

665

665

665

560

560

630

630

630

sgs

630

630

630

1,460

900

860

1,100

860

665

630

700

820

780

July.

700

630

525

490

595

560

700

630

630

630

595

1,190

1,100

1,420

5,240

2,890

5,080

4,110

3,370

2,290

1,800

1,550

1,420

1,190

1,060

1,060

1,100

940

820

700

Aug.

665

860

2,770

6,610

8,940

5,580

3,430

2,290

1,500

1,600

1,320

1,100

1,100

900

860

780

1,100

980

2,530

900

860

700

700

665

630

630

700

700

630

630

630

Sept.

525

525

490

740

525

595

700

630

630

630

560 4go

560

5g5

560

630

630

sgs

595

665

630

630

630

gso

700

525

630

630

630

630

Oct.

sgs

5g5

420

595

5g5

630

630

5g5

5g5

sgs

2,350

1,370

740

700

630

5g5 g40

2,000 i,gso

2,170

1,800 4,sgo

12,600

5,240

2,890

2,170

1 Qfin

8,660

9,980

4,460

3,250

Nov.

2,290

1,900

1,800

1,600

1,370

1,100

1,600

2,230

4,600

8,800

9,220

5,g40

3,900

3,130

2,410

I,g50

1,700

1,600

1,650

1,320

1,420

1,320

1,240

1,140

1,100

1,140

gso

1,190

1,240

1,190

Dec.

1,140

1,100

1,060

940

940

980

gso g40

goo

860

820

820

900

900

900

2,410

1,800

1,500

1,550

1,370

6,300

5,850

19,800

17,200

13, 700

g,370

7,200

6,610

5,320

4,180

3,370

NOTE. Daily discharge computed from a rating curve fairly well defined below 8,000 second-feet. For 

stages above 10,000 second-feet the rating is very uncertain.

Monthly discharge ofOcmulgee River at Macon, Ga.,for 1911, 

[Drainage area, 2,420 square miles.]

Month.

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

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

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

Discharge in second-feet.

Maximum.

5,760 

2,770 

3,250 

7,980 

2,890 

1,460 

5,240 

8,940 

980 

12,600 

g,220 ig,soo

ig,soo

Minimum.

665 

1,240 

1,020 

780 

860 

560 4go

630 

490 

420 

980 

820

420

Mean.

1,370 

l,5go 

1,440 

2,560 

1,220 

742 

1,490 

1,720 

616 

2,470 

2,400 

3,930

1,800

Per

square 

mile.

0.566 

.657 

.5g5 

1.06 

.504 

.307 

.616 

.711 

.255 

1.02 

.g92 

1.62

.744

Run-off 

(depth in 

inches on 

drainage 

area).

0.65 

.68 

.69 

1.18 

.58 

.34 

.71 

.82 

.28 

1.18 

1.11 

1.87

10.09
SOUTH ATLANTIC COAST BASINS. 35

OCONEE EIVER NEAR GREENSBORO, GA.

Location. At the highway bridge 5 miles west of Greensboro on the road to Madison,

Ga., about 4 miles above the mouth of Apalachee River and 1J miles below Town

Creek.

Records available. July 25, 1903, to December 31, 1911. 

Drainage area. 1,100 square miles.

Gage. Standard chain gage attached to the bridge; datum unchanged. 

Channel. Bed composed'chiefly of sand; slightly shifting. 

Discharge measurements. Made from the downstream side of the bridge. 

Artificial control. In the spring of 1911 a new dam was completed near Athens,

Ga., greatly increasing the storage capacity in that vicinity. The operation of

this dam does not appear to cause very great daily fluctuation at Greensboro, but

it does cause abnormally low daily discharge at times. 

Accuracy. Owing to the operation of power plants above the station it is probable

that the estimates of daily discharge may be somewhat in error for individual

days, especially at low stages. 

Cooperation. Gage observer paid by the Central Georgia Power Co.

Discharge measurements ofOconee River near Greensboro, Ga., in 1911.

Date.

Sept. 12

12

Hydrographer.

R. E. Robertson.. . .......................................................

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

height.

Feet. 

1.16

1.12

Discharge.

Sec.-ft. 

3.66

3.56

Daily gage height, in feet, ofOconee River near Greensboro, Ga.,for 1911. 

[A. M. Thurmond, observer.]

Day.

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

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

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

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

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

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

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

9

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

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

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

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

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

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

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

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

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

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

20.-..-.-...-....

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

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

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

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

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

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

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

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

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

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

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

Jan.

2.5

2.6

3 1

7.4

5.8

3.75

3.15

3.05

2.95

2.8

2.75

2.65

2.55

2.45

2.4

2.35

2.35

2.25

2.15

2.15

2.05

2.05

2.3

9 1

2.15

2.15

2.15

2.1

2.05

2.15

2.1

Feb.

2.1

2.0

2.1

2.05

2.15

2.1

2.35

2.45

2.9

3.75

3.55

5.6

5.0

3.95

3.5

3.25

3.05

2.85

2.75

3.25

3.4

3.05

2.8

2.65

2.45

2.55

2.55

Mar.

2.55

2.55

2

CC

2.35

2.25

2.25

2

^>

1.55

1 ^

2.4

9 ?

2 9

2 25

2.25

2.1

2.05

2.0

1.85

1.95

2.25

2.55

2.35

2.05

1 Q£

1 9

2.2

6.6

5.3

3 Q

3.4

2.«5

Ap

2.85

2.45

2 AX.

2.7

3.65

6.0

5.0

5.2

10.8

7 Q

8.0

8.2

7.6

7.1

5.8

4.7

3.85

3.75

3.65

3.55

3.45

3.25

3 ft

2.85

2.85

2

0

2 Q

2.95

2.95

May.

2

QC

2.8

2.55

2.45

2.45

2.35

2.3

2.25

2.1

1.95

1 Q^

2.05

3.2

2.1

1.85

1.85

1.85

1.85

1 Q

1.9

2.15

3 Q

4.0

3.3

2.15

2.05

1.95

1.85

1.45

June.

1 45

1.45

1.4

1.45

1.3

1 3K

1 3

1.35

1.25

1.05

1.2

1 95

1.25

1.15

9

.95

9

2.15

3.35

2.55

2.25

9 1

1 45

1.35

1.45

1.8

1 ^

1.25

1.35

July.

1.4

1.4

1.6

5.3

5.2

4.0

3

0

2 7

2.0

1 9

1.4

5.9

9.3

6.6

9

fl

10.2

8.7

4.8

3.8

4.4

5.2

3 4

3

v

4.0

4.4

2.7

2.0

1.8

1.6

1.6

Aug.

1.8

10.4

10.6

11.4

9.7

6

9

4.8

3 *7

3 ft

2 A

2

1

1.8

2.0

2.0

3.6

2.9

3 4

3.6

2.6

1 9

1.6

1.4

1.5

1.4

1.6

2.0

1.6

1.6

1.6

1.6

Sept.

1.6

1.4

i 3

1 9

1.9

2.2

1.8

1.6

1.2

1.2

1 ^

1.4

1.4

1.4

1.4

1.3

.35

1.4

1.4

1.4

1.6

1.8

2.0

1.3

1.4

1.4

1.4

1.4

1.2

Oct.

1.0

.6

1 ^

1 ^

.9

.65

45

.35

2.0

3.4

1.8

9 7

2.0

1.8

1.2

1.4

2.2

8.2

6.0

4.0

5.8

7.4

5.0

3.0

2.4

4.8

6.4

3.4

2.5

2.6

Nov.

3 A

2.8

2.5

2.1

1.85

2.5

8.2

8.8

11.8

11.8

9.6

4 9

3.4

3.4

2.8

2.8

2.8

2.3

2.0

2.4

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.4

2.4

Dec.

2.2

2.2

2.2

2.0

1.8

1.8

1.8

1.8

1.8

1.8

2.0

1.8

2.1

2.4

2.5

2.6

3.0

3.2

3.5

4.3

6.4

10.2

15.2

16.6

14.7

11.0

8.6

6.8

5.0

5.4

5.6
36 SURFACE WATEE SUPFLY, 1911, PART H.

Daily discharge, in second-feet, ofOconee River near Greensboro, Ga.,for 1911.

Day.

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

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

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

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

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

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

9........--..-..

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

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

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

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

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

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

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

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

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

20...............

21...............

22...............

23...............

24...............

25...............

26......'.........

27...............

28...............

29...............

30. ..............

31...............

Jan.

785

820

995

1,250

1,010

O7S

942

890

872

838

802

768

750

7QO

732

698

664

664

630

630

715

647

664

664

664

647

630

664

647

Feb.

647

614

647

630

664

647

7V)

768

925

1,250

1,170

2,120

1,820

1,340

1,150

1,050

978

908

872

1,050

1,090

978

890

838

768

802

Mar.

802

802

802

700

698

698

715

475

404

750

715

680

fiOS

698

647

630

566

598

698

802

7qO

630

CQO

582

680

2,660

1,980

1,320

Q49

Apr.

908

768

768

855

1,210

2

q»n

1,820

1,920

5,270

3,410

3,470

3,590

3,230

2

QJA

2,220

1,680

1 3fifl

1,250

1,210

1,170

1 1QA

1,050

960

908

908

890

925

942

Q49

May.

942

978

890

802

788

768

732

715

698

647

598

598

630

1,030

647

566

566

566

566

566

582

582

664

1,320

1,360

1,070

664

630

598

566

446

June.

446

446

432

432

446

404

418

404

418

391

339

378

391

391

365

<?ni

314

Qfll

664

1,090

802

698

647

418

446

550

404

391

418

July.

432

432

432

490

1,980

1,920

1,360

1,0'0

855

614

582

432

2,280

4,280

2,660

4,480

4,870

3 Qftn

1,720

1,280

1,540

1,920

1,110

1,070

1 360

1,540

855

614

550

490

490

Aug.

550

4,940

5,000

5,130

5,690

4,540

2,440

1,720

1,230

960

750

647

550

614

614

1,190

925

1,110

1,190

820

582

490

432

460

432

490

614

490

490

490

490

Sept.

490

432

404

582

582

680

550

490

432

378

378

404

432

432

432

432

404

172

432

432

432

490

550

614

404

432

432

432

432

378

Oct.

326

228

404

404

301

240

194

172

614

1,110

550

855

614

550

378

432

680

3,590

2,330

1,360

1,070

2,220

3,110

1,820

960

750

1,720

2,550

1.110

785

820

Nov.

1,110

890

785

647

566

785

3,590

3,960

5,970

5,970

4,480

1,780

1.110

1,110

820

890

890

890

715

614

750

680

680

680

680

680

680

680

750

750

Dec.

680

680

680

614

550

550

550

550

550

550

614

550

647

750

785

820

960

1,030

1,150

1,500

2,550

4,870

8,480

9,530

8,100

5,410

3,830

2,770

1,820

2,020

2,120

NOTE. Dafly discharge computed from a rating curve fairly well defined below 6,000 second-feet. 

Water was being stored at dams above the station on days when the discharge was less than 400 second-feet.

Monthly discharge ofOconee River near Greensboro, Ga.,for 1911. 

[Drainage area, 1,100 square miles.]

Month.

March... ....... ........

April....................................

May....................................

July....................................

Discharge in second-feet.

Maximum.

3,110 

2,120 

2,660 

5,270 

1,360 

1,090 

4,870 

5,690 

680 

3,590 

5,970 

9,530

9,530

Minimum.

630 

614 

404 

768 

446 

301 

432 

432 

172 

172 

566 

550

172

Mean.

894 

974 

821 

1,830 

734 

466 

1,540 

1,490 

452 

1,040 

1,490 

2,140

1,160

Per 

square 

mile.

0.813 

.885 

.746 

1.66 

.667 

.424 

1.40 

1.35 

.411 

.945 

1.35 

1.95

1.05

Eun-off 

(depth in 

inches on 

drainage 

area).

0.94 

.92 

.86 

1.85 

.77 

.47 

1.61 

1.56 

.46 

1.09 

1.51 

* 2.25

14.29

Accuracy.

A. 

A. 

A. 

A. 

A. 

A. 

A. 

A. 

A. 

A. 

A. 

A.
SOUTH ATLANTIC COAST BASINS.

OCONEE EIVER AT FRALEYS FEEEY, NEAE MILLEDGEVILLE, GA.

Location. At Fraleys Ferry, 6 miles above Milledgeville, Ga., and about 4 miles 

below the mouth of Little River.

Records available. May 23, 1906, to December 31, 1908; October 6, 1909, to December 31, 1911.

Drainage area. 2,840 square miles. '

Gage. Sloping section of timber, bolted to solid rock on left bank above the ferry 

landing; datum unchanged.

Channel. Sandy and shifting at measuring section; rock control below.

Discharge measurements. Made from ferryboat.

Artificial control. None below vicinity of Athens, Ga., where storage may cause 

low daily discharge at this station at times.

Accuracy. Records excellent, except for high stages which can not be measured.

Cooperation. Gage observer paid by the Central Georgia Power Co.

The following discharge measurement was made by R. E. Robertson: 

September 13, 1911: Gage height, 4.86 feet; discharge, 872 second-feet.

Daily gage height, infect, of Oconee River at Fraleys Ferry, near Milledgeville, Ga., for 1911.

[H. A. Taylor, observer.]

Day.

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...............

Jan.

5.7

5.85

8.0

9 0

8.5

7.0

6.55

fi s

6,1

6.0

5 9

5.8

5.8

5.8

5.8

5.7

5.7

5.7

6.6

5.6

5.6

5.6

5.6

5.6

5.5

5.5

5.5

5.5

5.5

5.5

5.5

Feb.

5.5

5.5

5.5

5.5

5.5

5.6

5.6

5.6

5.65

6.0

6.85

7.4

6.95

6.45

6.3

6.2

6.05

5.9

5.95

6.3

6.2

6.05

5 Q

5.8

5 7

5.7

5.7

Mar.

6.7

5.7

5 7

5.7

5.6

5.6

6.6

5.6

5.35

5.4

5.6

5.6

5.6

5.6

5.6

5.5

5.4

5.4

5 A

5.4

5.6

5.6

5.6

5 A

5 A

8.7

8 9

7.0

6.4

6.15

Apr.

5.95

6.9

5.8

5.7

5.75

6.8

7.2

6.75

7.8

8.6

8.4

8.0

8.9

8.4

7.9

7.4

6.9

6.55

6.4

6.6

6.45

6.15

6.0

5.9

5.8

5.8

5.7

5.8

5.85

5.9

May.

5.9

5.9

5.95

5.8

5.65

5.6

5.5

5.5

5.5

5.5

5 A

5

O

5.3

5.4

5.9

5.45

5.3

5.2

5.2

5.2

5.3

5.35

5.5

6.65

6.3

6.1

5.5

5

Ofc

5.1

5.1

5.0

June.

5.0

4.9

4.9

4.8

6.25

6.7

5.15

5.0

4.85

4.85

A Q

A. 71

4.8

4.8

4.7

4.65

4.6

4.55

4.7

5.05

5.65

5.55

5.3

5.3

5.05

4.9

5.15

5.05

4.85

4.75

July.

4.75

4.7

5.0

5.05

4.9

6.8

6.1

5.6

5.1

5.3

5.15

4.9

8.8

8.8

7.2

8.0

7.8

7.2

6.0

5.6

6.1

6.4

5.8

5.6

6.3

6.0

5 A

5.1

4.95

4.9

Aug.

4.9

6.6

8.4

8.3

8.5

8.8

7.5

6.2

5.7

6.0

6.0

5.5

5.6

5.35

5.05

5.2

5.35

5.4

6.1

6.2

5.45

5.15

5.05

4.9

4.95

5.15

5.45

6.6

5.35

4.9

5.05

Sept.

5.3

5.15

5.0

4 75

5.25

5.6

5.5

5.35

5.2

4.8

4.8

4.7

4.75

4.7

4.75

4.55

4.5

4.45

4.9

4.85

5.1

5.0

4.85

5.2

5.1

4.9

4.8

4.7

4.65

4.6

Oct.

4.55

4.55

4.5

4 fi<\

4.55

4.5

4.3

4.2

4.2

5.2

7.0

5.8

5.8

5.2

4.95

4.85

4.9

6.6

7.6

6.9

6.0

6.8

9.5

7.8

6.6

5.8

6.2

11.2

11.0

6.8

6.0

Nov.

6.0

6.4

6.0

6.8

5.6

5.6

6.6

7.8

9.2

9

O

7.5

6.7

6.3

6.2

6.0

5.9

6.0

6.2

5.8

5.8

5.6

5.6

5.5

5.6

5.5

5.5

5.7

5.9

5.9

Dec.

5.8

5.6

5.5

5.5

5.45

,5.4

5.4

5.4

5.4

5.4

5.4

5.4

5.4

5.4

5.8

6.9

6.4

6.2

6.0

6.3

8.1

10.0

14.4

is 15

13.0

11.5

9.5

8.4

8.0

7.4

8.4
38 SURFACE WATER SUPPLY, 1911, PART II.

Daily discharge, in second-feet, of Oconee River at Fraleys Ferry, near Milledgevilk, Ga.,

for 1911.

Day.

1. ..............

2...............

3...............

5...............

6...............

7...............

8...............

g

10...............

11...............

12...............

13...............

14...............

15...............

16. ..............

17...............

18...............

19...............

20...............

21...............

22...............

23...............

24. ..............

25...............

26. ..............

27...............

28...............

29...............

30...............

31...............

Jan.

1,740

1,940

5,650

7,650

6,650

3,000

2, COO

2,150

2,010

1,870

1,870

1,870

1,870

1 740

1 740

1,740

1,610

1,610

1,610

1,610

1,610

1 *lQf»

1,490

1,490

1 490

1,490

1,490

1 ' 490

Feb.

1,490

1,490

1,490

1,490

1,490

1,610

1,610

1,610

1,680

2,150

2,600

3,500

4,500

3 680

2,840

2,600

2

AKft

2,220

2,010

2,080

2,600

2,450

2,220

2,010

1,870

1,740

1,740

1 1 740

Mar.

1 740

1 740

1,740

i 7,m

1,610

1,610

1,610

1,610

1,380

1,610

1,610

1,010

1,610

1,610

1,490

1 Qftfi

1,380

1 QOrt

1,380

1,610

1,610

1,610

i oon

i oon

1 940

7^050

6,OoO

3,770

2,760

2

oon

Apr.

2,080

2,010

1,870 i 74n

1,800

3,420

4,130

3,340

5,260

6,850

6,450

5,650

7 450

6,450

5,450

4,500

3 KQrt

3,000

2,760

3,080

2,840

2,380

2,150

2,010

1,870

1,870

1,740

1,870

2,010

May.

2,010

2,010

2,080

1,870

1,680

1,610

1,490

1,490

1,490

1,490

1,380

1,270

1,270

1,380

2,010

1,170

1,170

1,170

1,270

1,320

1,490

1,680

2,600

2,300

1,490

1,220

1,080

1,080

990

June.

990

910

910

830

2,520

3,250

1,120

990

870

870

910

795

830

830

760

725

 690

660

760

1,040

1,680

1,650

1,270

1,270

1,040

910

1,120

870

795

July.

795

760

990

1,040

910

3,420

2,300

1,490

1,080

1,270

1,320

1,120

910

7,250

7,250

4,130

5,650

5,260

4,130

2,150

1,610

2,300

2,760

1,870

1,610

2,600

2,150

1,380

1,080

950

910

Aug.

910

3,080

6,450

6,250

6,650

7,250

4,690

2,450

1,740

2,150

2,150

1,490

1,610

1,320

1,040

1,170

1,320

1,380

2,300

2,460

1,120

1,040

910

950

1,120

1,440

3,080

1,320

910

1,040

Sept.

1,270

1,120

990

795

1,220

1,610

1,490

1,320

1,170

830

830

760

795

760

795

. 660

630

600

910

870

1,080

990

870

1,170

1,080

910

830

760

725

690

Oct.

660

660

630

660

660

630

520

470

470

1,170

3,770

1,870

1,870

1,170

950

870

910

3,080

4,880

3,590

2,150

3,420

8,700

5,260

3,080

1,870

2,450

12,500

12,000

3,420

2,150

Nov.

2,150

2,760

2,150

1,870

1,610

1,610

3,080

5,260

8,070

10,700

9,340

4,690

3,250

2,600

2,450

2,150

2, 010.

2,150

2,450

1,870

1,870

1,610

1,610

1,490

1,610

1,490

1,490

1,740

2,010

2,010

Dec.

1,870

1,610

1,490

1,490

1,440

1,380

1,380

1,380

1,380

1,380

1,380

1,380

1,380

1,380

1,870

3,590

2,760

2,450

2,150

2,600

5,850

9,780

21,100

18,600

17,200

13,200

8,700

6,450

5,650

4,500

6,450

NOTE. Daily discharge computed from a rating curve well defined below 5,600 second-feet.

Monthly discharge of Oconee River at Frayleys Ferry, near Milledgeville, Ga., for 1911. 

[Drainage area, 2,840 square miles.]

Month.

April...................................

May....................................

July....................................

October. ................................

Discharge in second-feet.

Maximum.

7,650 

4,500 

7,050 

7,450 

2,600 

3,250 

7,250 

7,250 

1,610 

12,500 

10,700 

21,100

21,100

Minimum.

1,490 

1,490 

1,320 

1,740 

990 

660 

760 

910 

600 

470 

1,490 

1,380

470

Mean.

2,330 

2,180 

2,020 

3,390 

1,520 

1,090 

2,340 

2,330 

951 

2,790 

2,970 

4,940

2,410

Per 

square 

mile.

0.820 

.768 

.711 

1.19 

.535 

.384 

.824 

.820 

.335 

.982 

1.05 

1.74

.849

Run-off 

(depth in 

inches on 

drainage 

area).

0.95 

.80 

.82 

1.33 

.62 

.43 

.95 

.95 

.37 

1.13 

1.17 

2.01

11.53

Accuracy.

A. 

A. 

A. 

A. 

A. 

A. 

A. 

A. 

A. 

A. 

A. 

B.

OCONEE EIVEE AT DUBLIN, GA.

Location. At the Wrightville & Tennille Railroad bridge at Dublin, Ga. 

Records available. February 11, 1898, to December 31, 1911; fragmentary records

prior to 1898. 

Drainage area. 4,180 square miles.
SOUTH ATLANTIC COAST BASINS. 39

Gage. Vertical timber attached to the downstream side of the central or turnspan 

pier of the railroad bridge; also a short sloping section bolted to rock just above 

the bridge on the right bank. The datum has not been changed.

Channel. Rocky and nearly permanent at the wagon bridge, but shifting of the 

bottom in the channel below causes slight changes in the discharge rating. At a 

stage of about 20 feet the left bank overflows for 1,100 feet through an iron frame 

trestle approach to the bridge. This ground is thickly covered with brushy 

growth, which probably retards the flow of water over the overflow section. The 

right bank does not overflow.

Discharge measurements. Made from the downstream side of the wagon bridge, 

500 feet above the railroad bridge.

Artificial control. The only power plant of consequence is near Athens, Ga., and 

is so far above the station that its operation probably does not affect the accuracy 

of observations at Dublin.

Accuracy. Lack of data covering changes in channel makes results at this station 

uncertain prior to 1910. A good degree of accuracy may be obtained by making 

frequent discharge measurements.

Cooperation. Since 1898 the gage heights have been furnished by the United States 

Weather Bureau.

Discharge measurements ofOconee River at Dublin, Ga., in 1911.

Date.

July 28

28

Hydrographer.

R. E. Robertson.. ........................................................

.....do....................................................................

Gage 

height.

Feet. 

1.70

1.50

Discharge.

Sec.-ft. 

3,020

2,820

Daily gage height, in feet, ofOconee River at Dublin, Ga.,for 1911.

Day.

1.. .............

2...............

3...............

4...............

&.... ...........

6...............

7...............

8...............

9...............

10...............

11...............

12...............

13...............

14...............

15...............

16:..............

17:..............

18...............

19...............

20...............

21...............

22...............

23...............

24...............

25...............

26...............

27...............

28...............

29...............

30...............

31...............

Jan.

0.7

1.4

1.7

3.6

6.5

7.0

7.4

4.4

3.7

2.5

2.2

1.8

1.5

1.5

1.5

1.4

1.4

1.3

1.0

1.0

,9

.9

.7

.4

.7

. -9

.8

.7

.6

.6

.6

Feb.

0.6

6

.6

.6

.6

.6

.6

.7

.9

.9

1.0

1.2

2.9

5.1

5.2

4.1

3.1

2.7

2.4

1.0

.7

1.9

2.2

2.1

1.8

1.7

1.2

1.1

Mar.

1.0

.9

.9

.9

.9

.9

.8

.8

.7

.7

.7

.6

.6

.9

.7

.7

.7

.7

.6

.4

.4

.4

.6

.5

.4

.6

1.7

5.4

7.0

7.3

5.9

Apr.

3.6

2.4

1.8

1.6

1.4

1.8

2.1

3.3

4.2

4.0

5.9

7.6

7.5

7.6

7.8

8.1

8.2

7.2

4.9

4.5

4.3

3.3

2.7

1.9

2.4

1.8

1.3

1.1

1.0

1.0

May.

1.0

1.1

1.2

1.4

1.2

.9

.8

.2

.1

.2

.1

. _ 2

- .2

_ 2

3

- .1

.3

.2

_ , 2

- .3

- .3

 .4

. _ ^

- .3

- .2

 1

1.5

1.0

.9

.1

June.

-0.4

- .4

- .6

- .8

- .9

9

2.0

2.1

.4

.3

- .1

__ Q

_ 4

 .4

- .6

- .6

- .5

- .5

- .5

- .2

.3

.4

.4

.3

 4

 .5

_ 2

_ 4

July.

-0.7

_ g

-1.0

-1.0

_ <j

- .2

_ 2

1.8

.9

.4

.3

.3

.3

.4

2.2

6.6

6.8

6.4

6.4

6.0

4.1

1.7

.9

1.8

1.9

.9

.4

1.8

.7

.1

.1

Aug.

-0.3

- .3

4.9

6.7

6.6

6.6

6.6

5.5

5.0

1.1

1.6

.9

.8

.8

.0

- .2

- .3

 1

.7

2.4

1.2

.2

< __ 1

- .5

- .8

_ n

_ g

.9

1.7

.7

Sept.

2.1

3.6

2.4

1.8

1.4

_ 2

_ 4

1.4

1.5

 2

- .5

- .5

- .6

_ 7

- .7

__ g

- .8

- .8

 .8

- .8

 .5

_ 4

.1

.5

.1

.2

_ f I

- .2-

_ 4

- .6

Oct.

-1.0

-1.0

 1.1

-1.1

-1.1

-1.2

-1.2

-1.3

-1.3

-1.4

-1.4

1.4

1.4

1.4

1.3

» .1

- .2

- .2

.9

3.9

5.3

3.4

2.8

3.9

6.0

6.4

3.2

2.4

4.2

6.6

7.2

Nov.

7.8

4.8

2.4

1.9

1.5

1.2

1.8

1.2

4.2

6.0

6.9

7.7

8.5

9.0

6.5

6.3

2.3

1.5

1.2

1.3

1.6

1.4

.9

.8

.3

.4

.3

.3

.4

.9

Dec.

2.4

2.3

1.8

1.4

1.2

.9

.7

.7

.4

.3

.3

.3

.3

.3

.3

.8

5.9

7.0

7.4

4.7

4.1

5.8

9.9

11.6

15.3

19.0

19.9

17.9

15.8

15.1

13.1
40 SUBFACE WATER SUPPLY, 1911, PART n.

Daily discharge, in second-feet, ofOconee River at Dublin, Ga.,for 1911.

Day.

1........ .......

2...............

3...............

4...............

5...............

6...............

7...............

8...............

9...............

10...............

11...............

12...............

13...............

14...............

15...............

16...............

17...............

18...............

19...............

20...............

21...............

22...............

23...............

24...............

25...............

26...............

27...............

28...............

29...............

30...............

31...............

Jan.

2,180

2,740

2,980

4,720

7,960

8,600

9,120

5,540

4,820

3,670

3,400

3,060

2,820

2,820

2,820

2,740

2,740

2,660

2,420

2,420

2,340

2,340

2,180

1,950

2,180

2,340

2,260

2,180

2,100

2,100

2,100

Feb.

2,100

2,100

2,100

2,100

2,100

2,100

2,100

2,180

2,340

9 Idrt

2,420

2,580

4,030

6,310

6,420

5,220

4,220

3,850

3,580

2,420

2,180

3,140

3,400

3,310

3,060'

2,980

2,580

2,500

Mar.

2,420

2,340

2,340

2,340

2,340

2,340

2,260

2,260

2,180

2 ion

2,180

2,100

2,100

2,340

2,180

2,180

2,100

1,950

1,950

1,950

2,100

2,020

1,950

2,100

2,980

6,640

8,600

8,990

7,240

Apr.

4,720

3,580

3,060

2,900

9 74rt

3,060

3,310

4,420

5,320

5,120

7

e\Af\

9

9QA

9,250

9 isn

9 fifin

10,100

10,200

8,860

6,090

5,650

5 430

3,850

3,140

3,580

3,060

2,660

2,500

2,420

2,420

May.

2,420

2,500

2,580

9 74rt

2,580

2,340

2,260

1,810

1 740

1,810

1 740

1^530

1,530

1,530

1 460

1,600

1,880

1,810

1,530

1

ARf\

1,460

1,400

1,400

1,460

1,530

1,600

2,820

2,420

2,340

1,740

1,950

June.

1,400

1,400

1,280

1,160

1,100

1,100

3,220

3,310

1,950

1,880

1,600

1,460

1,400

1,400

1 340

1,280

1,280

1,340

1,340

1,340

1 340

1^530

1,880

1,950

1,950

1,880

1,400

1,340

1,530

1,400

July.

1,220

1,100

1,040

1,040

1,100

1,530

1,530

3,060

2,340

1,950

1,880

1,880

1,880

1,950

3,400

8,080

8,340

7,840

7,840

7,360

5,220

2,980

2,340

3,060

= 3,140

2,340

1,950

3,060

2,180

1,740

1 74rt

Aug.

1,460

1,340

1,460

6,090

8,210

8,080

8,080

8,080

6,760

6,200

2,500

2,900

2,340

2,260

2,260

1,670

1,530

1,460

1,600

2,180

3,580

2,580

1,810

1,600

1,340

1,160

1,100

1,100

2,340

2,980

2,180

Sept.

3,310

4,720

3,580

3,060

2,740

1,530

1,400

2,740

2,820

1,530

1 340

1,340

1,280

1,220

1,220

1,160

1,160

1,160

1,160

1,160

1 ^4fl

1,400

1,740

2,020

1,740

1,810

1,600

1,530

1,400

1,280

Oct.

1,040

1,040

980

980

980

920

920

860

860

800

800

2,740

2,740

2,740

2,660

1,600

1,530

1,530

2,340

5,020

6,530

4,520

3,940

5,020

7,360

7,840

4,320

3,580

5,320

8,080

8,860

Nov.

9,660

5,980

3,580

3,140

2,820

2,580

3,060

2,580

5,320

7,360

8,470

9,520

10,600

11,400

7,960

7,720

3,490

2,820

2,580

2,660

2,900

2,740

2,340

2,260

1,880

1,950

1,880

1,880

1,950

2,340

Dec.

3,580

3,490

3,060

2,740

2,580

2,340

2,180

2,180

1,950

1,880

1,880

1,880

1,880

1,880

1,880

2,260

7,240

8,600

9,120

5,870

5,220

7,120

12,800

15,700

22,600

30,200

32,100

27,900

23,600

22,200

18,400

NOTE. Daily discharge computed from a rating curve fairly well defined between 1,800 and 32,300 

second-feet.

Monthly discharge of Oconee River at Dublin Ga.,for 1911. 

[Drainage area, 4,180 square miles.]

Month.

April....................................

May.....................................

July....................................

Discharge in second-feet.

Maximum.

9,120 

6,420 

8,990 

10,200 

2,820 

3,310 

8,340 

8,210 

4,720 

8,860 

11,400 

32,100

32,100

Minimum.

1,950 

2,100 

1,950 

2,420 

1,400 

1,100 

1,040 

1,100 

1,160 

800 

1,880 

1,880

800

Mean.

3,360 

3,060 

2,940 

5,250 

1,900 

1,590 

3,100 

3,170 

1,850 

3,180 

4,510 

9,240

3,600

Per 

square 

mile.

0.804 

.732 

.703 

1.26 

.455 

.380 

.742 

.758 

.443 

.761 

1.08 

2.21

.861

Run-off 

(depth in 

inches on 

drainage 

area).

0.93

.76 

.81 

1.41 

.52 

.42 

.86 

.87 

.49 

.88 

1.20 

2.55

11.70

Accuracy.

A. 

A. 

A. 

A. 

B. 

B. 

B. 

B. 

B. 

B. 

A. 

B.

EASTERN GULF OF MEXICO DRAINAGE BASINS.

APALACHICOLA RIVER BASIN. 

CHATTAHOOCHEE EIVEE NEAR NOECEOSS, GA.

Location. At Medlocks Bridge, 4J miles north of Norcross, Ga., 1J miles above the

mouth of John Creek, and about 5 miles above Suwanee Creek. 

Records available. January 9, 1903, to December 31, 1911. 

Drainage area. 1,170 square miles.
EASTEBlSr GULF OF MEXICO BASINS. 41

Gage. Standard chain gage on the toll bridge. The original gage was a vertical 

staff attached to an oak tree on the right bank about 100 feet above the bridge. 

A chain gage, established March 14, 1903, was read in connection with the vertical gage until June 28, 1905, when the present gage was installed. The datum 

of the vertical staff gage originally used and that of the present chain gage has not 

been changed.

Channel. The right bank is high and overflows only slightly; the left bank will 

overflow for about 800 feet at a gage height of 16 to 18 feet. The bed of the stream 

is sandy and changeable, necessitating frequent discharge measurements and 

occasional changes in the rating.

Discharge measurements. Made from the downstream side of the bridge.

Artificial control. Dams near Gainesville, Ga., and on Chestatee River interfere 

with the natural flow. It is thought that the two readings a day give a good daily 

mean gage height.

Accuracy. Except for the possible error in mean gage heights due to artificial control, the results at this station are considered excellent.

Cooperation. Since May 1, 1910, the gage heights have been furnished by the 

United States Weather Bureau.

Discharge measurements of Chattahoochee River near Norcross, Ga., in 1911.

Date.

Mar. 15

Apr. 13

13

Hydrographer.

M.R.Hall... ..........

.....do..................

.....do..................

Gage 

height.

Feet. 

2.36

6.36

6.30

Discharge.

Sec.-ft. 

1,340

5,360

5,370

Date.

29

Hydrographer.

M. R. Hall.. ...........

R. E. Robertson. ......

height.

Feet. 

1.68

1.68

Discharge.

Sec.-ft. 

767

803

Daily gage height, in feet, of Chattahoochee River near Norcross, Ga.,for 1911. 

[W. O. Medlock, observer.]

Day.

1...............

2...............

3...............

4...............

5...............

6...............

7...............

8...............

9...............

10...............

11...............

12...............

13...............

14...............

15...............

16...............

17...............

18...............

19...............

20...............

21...............

22...............

23...............

24...............

25...............

26...............

27...............

28...............

29...............

30...............

31...............

Jan.

2 4

3.0

7.8

9.4

5.2

3

Q

3.4

3.15

3.1

3.0

9 7

2 7

2.6

9 K.

2.45

9 d.

2.4

2.4

2.5

2.4

2.3

9 °.

2.35

9 °.

2.35

2.3

9 °.

2.15

2.1

9 9

2.4

Feb.

2.4

2.45

2.3

2.3

2.25

1

Q

2.45

2.35

2.65

2.8

o S

3

f\

2

QC

2.8

9 71

2.7

2.55

2 a

9 ^

3.1

3.2

9 Q

2.8

2.55

9 1

2.25

2

0

2.5

Mar.

2.5

2.6

2.55

2.25

2.3

2.3

2.35

2.4

2.3

2.3

2.3

9 9

2.2

2.2

9 9

2.15

2.2

2.15

2.1

2.8

2.85

2.45

2.3

2.25

2.2

2.5

4.4

4.3

3.2

3.0

2.8

Apr.

2.6

2.55

2.5

2.5

5.6

11.0

R A.

8.6

8.6

6.2

A a

5.1

6.4

5.8

5.6

4.8

4.3

4.0

3.8

4.4

4.0

3.65

3.5

3.35

3.25

3.15

OIK

3.2

3.4

3.55

May.

3.3

3.35

3.55

3.2

3.05

3.05

3.0

2.9

2.85

2.85

2

71?

2

7c

2.65

9 ft

9 ft

2.6

2.55

2

K

9 11

2.55

2.8

3.0

3.3

3.5

3 OK

2

0

2 ft

2.5

2.6

2.6

2 5

June.

2.45

2.35

2.3

2.3

9 9

2

0

2.2

9 9

2.2

2.15

2 1

9 A.1

2

n

1.95

1 95

1 Q

1.88

1 95

2.5

2.95

2.4

2 A

2.15

9 A^

2 1

2.0

1 95

1.88

2.1

1 98

July.

9 n

2.2

1.85

1.95

3.0

2

0

9 1

2.4

2.5

2.0

2 a

2.4

9 9

9 A.

3

c\

3.4

4.0

3

Q

2.5

2.2

2.2

2

0

2.2

2.3

2 a

2.5

9 n

1 Q

1.85

1 79

1.8

Aug.

9 n

2.6

2.9

5.6

5.2

3.2

2.6

2.5

2.2

2.0

1 Q

1 9

1.7

1.8

1 Q

1.85

1 Q

1.85

1 OS

1 9

1.7

1 71

1.65

1.65

1.7

1.6

1.55

1.48

1.7

1.75

1.8

Sept.

1 Q

1.8

1.55

1.6

1.8

2.5

3.4

2.2

2.0

1.85

1.5

1 9

1 9

1.8

1.7

1.55

1.6

1

0K

1.4

1.6

1.6

1.7

1.7

1.6

1

0K

1.55

1.65

1.75

1.55

1 99

Oct.

1.25

1.02

1.45

1.3

1.8

1.35

1.4

1.35

1.2

2.8

6.6

3

0

2.6

2.2

1 (tf

I

KK

3.9

7.4

4.3

9 Q

2.6

9 1

2.5

9 ft

2

0

2.1

9 1

9 9

2.0

1 1

1 9

Nov.

9 9

2.2

2.0

2.0

1 V>

1 Q

5.0

3.8

6.9

6.0

3.6

3

f\

9 Q

9 Q

2 7

2 a

9 1

2 a

2.7

9 7

2.5

2.4

2.3

9 °.

2

K

2.3

9 9

9 A.

2.7

2.8

Dec.

2

E

9 A.

2.3

2.3

9 A.

2.3

2.4

2.4

2.0

2.1

1.7

9 °.

2.2

2.1

2.4

2.5

2.7

9 7

2.6

2.5

2.9

5.4

11.2

6.4

4

0

4.2

5.0

5.6

4.0

3.6

4 0
42 SUBFACE WATER SUPPLY, 1911, PAET II.

Daily discharge, in second-feet, of Chattahoochee River near Norcross, Ga.,for 1911.

Day.

\. ...... ........

2....... ........

3...............

4...............

5...............

6...............

7...... .........

8...............

9...............

10...............

11...............

12...............

13...............

14...............

15...............

16...............

17...............

18...............

19...............

20...... .........

21...............

22....... ........

23...............

24...............

25...............

26...............

27...............

28...............

29...............

30...............

31...............

Jan.

1.320

1,800

7,370

9,700

3,990

2,520

2,160

1,890

1,800

1,560

1,560

1,360

1,320

1,320

1,320

1,400

1,320

1 240

1 94-ft

1 280

1,240

1,280

1,240

1,240

1,120

1,080

1,160

1,320

Feb.

1,320

1.360

1,240

1,240

1,200

850

1,360

1,520

1,640

1,640

1,800

1,760

1,600

1,440

1,480

1 940

1,890

1 980

l'720

1,640

1,440

1,400

1,200

1,240

1,400

Mar.

1 AfVt

1,480

1 440

1,200

1 240

1,240

1 9sn

1,240

1 240

1,240

1,160

1,160

1,160

1,160

1,120

1,160

1,120

1,080

1 640

1,680

I

Oftrt

1 200 i'i6o

1,400

3,100

3,000

1,980

1 800

1^640

Apr.

1,480

1,440

1,400

1,400

4,470

19 1AA

5,470

8,500

8,500

5,210

3,530

3,870

5,470

4,710

4,470

3,530

3,000

2,700

2 eon

3 1 Oft

2 7Oft

2,380

2,250

2,120

2,020

1,940

1,940

1 980

2, 160

2,300

May.

2,070

2,300

1 980

1^840

1,840

1,800

1,720

1,680

1,680

1,520

1,480

1,480

1,480

1,440

1,400

1

AA(\

1 640

2,020

2,250

2,020

1,640

1,480

1,400

1,480

1,480

1,400

June.

1,360

1,280

1,240

1,240

1,160

1,160

1,160

1,160

1,160

1,120

1 080

1,040

1,000

962

962

925

910

962

1,400

1,760

1,320

1,120

1,040

1,080

1,000

962

910

1,080

985

July.

1,000

1,160

888

962

1,800

1,240

1,080 1 OOA

1 d(\f\

1 ftnft

1,480

1,320

1,160

1,320

1,800

2,160

2,700

2,520

1,400

1,160

1,160

1,160

1,240

1,480

1,400

1,000

925

888

790

850

Aug.

1,000

1,480

1,720

4,470

3,990

1 980

1,480

1,400

1,160

1,000

925

925

775

850

925

888

925

888

962

925

775

812

738

738

775

700

665

616

775

812

850

Sept.

925

665

700

850

1,400

2,160

1,160

1,000

888

630

925

925

850

775

665

700

525

560

700

700

775

775

700

525

665

738

812

665

434

Oct.

455

9Q4.

595

850

525

560

KOK

1,640

5,730

2,070

1,480

1,160

962

665

2,610

6,810

3,000

1,720

1,480

1,400

1,400

1,480

1,240

1,080

1,080

1,160

1,000

630

925

Nov.

1,160

1,160

1,000

1,000

644

925

3,750

6,120

4,950

2,340

1,800

1,720

1,720

1,560

1,480

1,400

1,480

1,560

1,560

1,400

1,320

1,240

1,240

1,400

1,240

1,160

1,320

1,560

1,640

Dec.

1,400

1,320

1,240

1,240

1,320

1,240

1,320

1,320

1,000

1,080

775

1,240

1,160

1,080

1,320

1,400

1,560

1,560

1,480

1,400

1,720

4,230

12,400

5,470

3,530

2,900

3,750

4,470

2,700

2,340

2,700

NOTE. Daily discharge computed from a rating curve well defined below 8,000 second-feet and fairly 

well defined below 15,000 second-feet.

Monthly discharge of Chattahoochee River at Norcross, Ga.,for 1911. 

[Drainage area, 1,170 square miles.]

Month.

May.....................................

July.....................................

Discharge in second-feet.

Maximum.

9,700 

1,980 

3,100 

12,100 

2,300 

1,760 

2,700 

4,470 

2,160 

6,810 

6,120 

12,400

12,400

Minimum.

1,080 

850

MOO

910 

790 

616 

434 

294 

644 

775

294

Mean.

2,000 

1,470 

1,440 

3,620 

1,700 

1,130 

1,320 

1,190 

821 

1,470 

1,780 

2,310

1,690

Per

square 

mile.

1.71 

1.26 

 1.23 

3.09 

1.45 

.966 

1.13 

1.02 

.702 

1.26 

1.52 

1.97

1.44

Run-off 

(depth in 

inches on 

drainage 

area).

1.97 

1.31 

1.42 

3.45 

1.67 

1.08 

1.30 

1.18 

.78 

1.45 

1.70 

2.27

19.58

Accuracy.

A. 

A. 

A. 

A. 

A. 

A. 

A. 

A. 

A. 

A. 

A. 

A.
EASTERN GULP OP MEXICO BASINS. 43

CHATTAHOOCHEE RIVER AT WEST POINT, GA.

Location. At the Montgomery Street Bridge, West Point, Ga., half a mile below 

the mouth of Oseligee Creek and about 3 miles above Long Cane Creek.

Records available. July 30, 1896, to December 31, 1911.

Drainage area. 3,300 square miles.

Gage. Standard chain gage attached to the highway bridge; datum unchanged.

Channel. Deep; current sluggish at low stages. Bottom shifts considerably, but the 

shifting does not affect discharge rating. The right bank is high and overflows 

only at high water, when most-of the town is flooded; the left bank is somewhat 

lower and overflows for about 800 feet at a gage height of 20 feet.

Discharge measurements. Made from the downstream side of the highway 

bridge.

Artificial control. Some fluctuations are caused by the operation of power plants 

above, mainly the Bull Sluice plant near Atlanta, Ga., but these are of little 

consequence compared to the backwater from the Langdale Dam 4 miles below. 

The height of the dam was raised in 1909, but the effect was fairly well cared for 

in the records of 1909 and 1910. During the low water of 1911, however, with 

increased height of flashboards, the backwater effect, varying with the use of 

water at Langdale, was so great that reasonably good estimates of flow can not be 

made.

Accuracy. Discharge rating is not reliable (see "Artificial control") and no discharge estimates are given for 1911.

Discharge measurements of Chattahoochee River at West Point, Ga., in 1911.

Date.

Feb. 18

18

Hydrographer.

M. R. Hall ...............................................................

.....do....................................................................

.....do....................................................................

.....do...................................................................

Gage, 

height.

Feet. 

3.58

3.57

8.18

8.49

Discharge.

Sec.-ft. 4 ion

3,980

14,100

15,100

CHATTAHOOCHEE RIVER AT ALAGA, ALA.

Location. At the Atlantic Coast Line Railway bridge one-fourth mile east of Alaga,

4 miles east of Gordon, and half a mile west of Saffold, Ga., about 35 miles above

the junction of Chattahoochee and Flint rivers.

Records available. Gage heights from January 1, 1908, to December 31, 1911. 

Drainage area. 8,780 square miles (United States Weather Bureau figures). 

Gage. Standard chain gage attached to the railroad bridge; datum unchanged since

1908. 

Channel. Shifting; lack of conformity in discharge measurements indicates much

change.

Discharge measurements. Made from the railroad bridge. 

Accuracy. No rating has yet been developed. 

Cooperation. The gage heights have been furnished by the United States Weather

Bureau.

The following discharge measurement was made by R. E. Robertson: 

October 21, 1911: Gage height, 2.33 feet; discharge, 4,780 second-feet.
44 SURFACE WATER SUPPLY, 1911, PART II.

Daily gage height, in feet, of Chattahoochee River at Alaga, Ala., for 1911.

Day.

1... ............

2...............

3...............

4...............

5...............

6...............

7...............

8...............

9...............

10...............

11...............

12...............

13...............

14...............

15...............

16...............

17...............

18...............

19...............

20...............

21...............

22. ..............

23...............

24...............

25. ..............

26...............

27...............

28. ..............

29. ..............

30..;............

31...............

Jan.

4.0

4.4

4.7

11.9

18.2

1&5

16.1

13.2

9.8

7.4

6.8

5.9

5.5

5.1

4.8

4.5

4.4

4.3

4.0

3.8

3.6

3.8

3

rj

3.5

3.5

3.7

3.6

3.5

3.4

3.2

3.2

Feb.

3.4

3.3

3.3

3.3

3.0

3.0

3.1

3.6

4.6

5.2

4.6

5.6

7.6

10.1

10.5

8.2

fi S

6.1

5.3

A ft

5 A

5.6

6.0

5 9

A. ft

A K

4.2

S Q

Mar.

S Q

3.7

3.5

3.4

3.3

3.3

3.3

3.4

3.1

3.2

3.1

3.1

2 Q

3.4

7.0

3.0

2

O

9 7

2

e

2.6

2

e

2.8

3 9

3.2

3.3

3.5

6.7

6.6

11.1

8.9

7.1

Apr.

6.5

K A

Q Q

O 7

5.5

c 9

19 ft

10 7

15.3

15.0

16.2

-\A Q

19 1

ia3

9 0

ft 7

ft ft

7.4

7.1

7

e

ft 1

7.6

6.0

5.7

5.1

4.6

4.4

4.4

4 6

May.

4.6

4.8

5.4

fi Q

5.7

A Q

4.0

3.6

3.6

3.3

3.2

2 9

2 7

2.5

2.6

2 6

9 H

2

e

2

e

2.4

9 H

Q Q

4 7

e Q

4 1

0 K

2.9

2.7

June.

2.0

1.8

1.7

1.7

1.6

1.8

1 Q

1.4

1.2

1.2

1.3

1.1

1.1

1.4

1.1

.7

.7

.7

.8

.8

1.1

2.0

3.5

3.0

2.2

1.6

1.7

2.3

2.3

July.

1.9

1.8

1.7

1.8

2.0

2.3

3.0

2.8

2.7

2.5

3.4

3.3

2.9

5.1

6.2

7.0

fi S

8.4

8.8

8.9

7.4

5.7

4.8

4.7

3.9

3.1

2.3

2.3

2.1

1.8

Aug.

1.4

1.1

2.5

8.1

10.1

6.8

5.5

4.5

5.3

4.2

3.5

2.9

2.4

2.3

2.2

2.2

2.6

1.8

2.0

3.8

4.7

3.6

2.6

2.0

1.4

1.0

.9

.9

.4

.5

Sept.

n Q

.8

.8

.7

1.1

1.3

2.4

2

O

2.5

2.4

1.6

1.4

1.5

1.4

1.2

1.0

.6

- .3

.6

1.3

1 Q

1.5

1.3

.7

.2

.4

.7

 .4

Oct.

0.4

.5

.1

- .4

- .1

.1

- .3

- .6

- .6

- .5

.1

1.2

.0

.2

3.5'

2.3

2 9

1 Q

2.0

2.2

4.6

5.4

3.6

3.1

1.7

1.3

1.4

1.5

3.4

2.3

Nov.

3.0

2.3

1.5

1.8

1.6

1.6

1.2

1.4

2.1

3.2

7.6

10.8

9.4

8.2

5.8

S Q

3.0

3.0

2.8;

2.3

2.2

2.4

2.6

2.2

2.0

2.3

1.6

1.9

3.1

4.4

Dec.

2.9

3.0

2.6

2.8

2.4

2.1

2.1

2 1

2.0

1.7

.7

.5

.6

.9

.9

2.9

2.9

2.6

2.3

1.9

4.6

7.7

20.3

25.0

22.1

20.1

17.3

13.7

H o

11.0

9.7

FLINT RIVER NEAR WOODBURY, GA.

Location. At the Macon & Birmingham Railroad bridge, 3 miles east of Woodbury, 

Ga., about one-third of a mile above the mouth of Cane Creek and one-fourth of a 

mile below Elkins Creek.

Records available. March 29, 1900, to December 31, 1911.

Drainage area. 1,090 square miles.

Gage. Vertical staff, in two sections, on the left bank about 300 feet above the railroad bridge. The datum of the gage, which is 660 feet above sea level, has 

remained the same since the establishment of the station.

Channel. The bottom is rough, consisting chiefly of rock, and currents are irregular. 

Above gage height 10 feet the banks are subject to overflow for a width of about 

350 feet, but all water passes beneath the bridge and its approaches.

Discharge measurements. Made from the downstream side of the railroad bridge, 

which does not make a right angle with the current.

Artificial control. Power developments on tributary streams above affect the daily 

flow at low stages.

Accuracy. Since July 1, 1910, the records are based on one gage-height reading a 

day, and as the operation of the power plants above causes some diurnal fluctuation the estimates of daily discharge may be considerably in error for individual 

days, especially at low stages. The discharge rating was fairly constant for a 

number of years but changed considerably in 1909 and 1910, probably due to 

conditions at the shoals one-half mile below. The highway bridge built a short 

distance below the gage in September, 1911, materially affected the conditions of 

flow and necessitated a new discharge rating.

Cooperation. Since July 1, 1910, the gage heights have been furnished by the 

United States Weather Bureau.

The following discharge measurement was made by E. E. Bobertson: 

September 16, 1911: Gage height, 0.00 feet; discharge, 203 second-feet,
EASTERN GULF OF MEXICO BASINS. 45

Daily gage height, in feet, of Flint River near Woodbury, Ga.,for 1911.

Day.

1.. ........

2..........

3..........

4..........

5..........

6..........

7..........

8..........

9..........

10..........

11..........

12..........

13..........

14..........

15..........

16..........

17..........

18..........

19..........

20..........

21..........

22..........

23..........

24..........

25..........

26..........

27..........

28..........

29..........

30..........

31..........

Feb.

0.7

.8

.8

.8

.8

1.0

1.1

1.1

1.5

1.6

2.3

2.5

2.4

2.2

1.7

1.5

1.3

1.2

1.4

1.5

1.3

1.2

1.1

1.0

.9

.9

Mar.

O n

.9

g

.8

.8

.8

.8

.8

.8

.8

.8

.7

.7

.7

.7

.7

.6

.6

.6

.7

.8

.8

.7

.7

.8

2.3

2.5

 2.2

1 7

1.3

Apr.

1.0

.9

.8

.8

.9

2.4

2.9

2.7

2.0

2.1

2.3

2.0

2.2

2.1

1.8

1.5

1.3

1.1

1.0

1.4

1.4

1.2

1.0

.9

.8

.8

.7

.7

.8

1.1

May.

0.9

1.2

1.0

.9

.7

.7

.6

.6

.6

.5

.5

.5

.4

.4

.4

.4

.3

.3

.3

.4

.4

.5

1.0

2.1

1.8

1.2

g

.6

.5

.4

.3

June.

0.3

.2

.2

.2

.1

.1

.1

.1

.1

.0

.1

.0

.0

.0

.0

.0

.0

.5

g

1.0

.6

.3

.2

.2

.6

.5

.5

July.

0.2

.2

.0

.0

.0

.7

.7

.4

.5

.6

.6

1.2

1.2

1.5

1 S

1.6

1.6

1.4

g

.7

.7

.7

.6

.5

.5

.5

.2

.1

.1

Aug.

0.6

2.9

4.6

3.7

2.3

1.8

g

.7

.7

.7

.6

.6

.6

.6

.6

.4

1 9

1.6

1.3

.8

.6

.5

.3

.5

.3

.2

.2

.1

.1

.1

.1

Sept.

0.1

.1

.1

.0.1

.5

.5

.5

.4

.2

.1

.0

.0

.0

.2

.1

.0

.2

.2

.5

.5

.2

.2

.1

.1

.2

.1

.1

.0

.0

Oct.

0.0

_ 2

__ 0

_ 2

 2

_ 2

_ 2

_ ^

_ 4

__ A

__ J

.1

.4

.3

.2

.1

.3

.6

.7

.9

.6

.7

.8

.7

.5

.4

.4

1.1

1.5

1.6

1.3

Nov.

1.2

1.0

.7

.6

.5

.5

.7

.9

2.1

2.5

2.9

2.7

1.8

1.5

1.1

1.0

.9

.8

.8

.8

.7

.7

.7

.6

.6

.6

.6

' .7

.8

.8

Dec.

0.7

.7

.7

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.7

.8

.8

.8

.8

2.2

2.7

4.8

5.5

5.0

4.0

3.2

2.8

2.5

2.0

1.7

Daily discharge, in second-feet, of Flint River near Woodbury, Ga.,for 1911.

Day.

1. .........

2. .........

3..........

4..........

5..........

6..........

7..........

8..........

9..........

10..........

11..........

12..........

13..........

14..........

15..........

16..........

17..........

18..........

19..........

20..........

21..........

22..........

23..........

24..........

25..........

26..........

27..........

28..........

29..........

30..........

31..........

Feb.

»548

548

620

620

620

620

785

875

875

1,280

1,400

2,310

2,580

2,180

1,520

1,280

1,070

970

1,180

1,280

1,070

970

875

785

700

700

700

Mar.

700

700

700

620

620

620

620

620

620

620

620

548

548

548

548

548

483

JQQ

483

548

700

620

620

548

548

620

2,310

2

EQA

2,180

1,520

1,070

Apr.

785

700

620

620

700

2,440

3,140

2,860

1,900

2,040

2,310

T onn

2

1QA

2,040

i fun

1,280

1,070

875

785

1,180

1,180

970

785

700

620

620

548

548

620

875

May.

700

970

785

700

548

548

483

483

483

424

424

424

Q71

QlTl

Q71

Q71

323

QOQ

323

371

371

424

785

2 run

1 640

Q7A

700

483

424

371

QOQ

June.

323

279

O7Q

279

279

239

OOQ

323

239

239

OOQ

203

239

9ft°.

203

203

203

OAQ

9ft3

424

700

620

785

483

000

97Q

279

JQQ

424

424

July.

279

279

203

203

203

548

QOO

323

548

371

424

483

JOO

970

970

i 9sn

1 640

1*400

1 400

M80

700

548

>?4S

548

JQQ

424

494

424

279

OQQ

Aug.

483

3,140

K Q9A

A QOA

2,310

i fun

700

548

548

548

483

483

AQV

AQV

AQV

970

1 400

1,070

620

483

424

323

424

QOQ

97Q

279

9°.Q

OOQ

239

OOQ

Sept.

239

239

OQQ

203

239

424

424

424

371

279

239

203

OAQ

OAQ

279

OOQ

203

97Q

279

d!9d.

424

97Q

97Q

239

OOQ

O7Q

239

OQQ

203

Oct.

203

140

140

140

140

140

86

86

86

170

239

323

279

OQQ

323

AQV

548

700

483

548

620

548

424

371

371

Q7A

1,220

1,310

1.040

Nov.

955

785

548

483

424

424

548

700

1,810

2,310

2,860

2,580

1,490

1,220

870

785

700

620

620

620

548

H48

548

483

AQV

483

483

548

620

620

Dec.

548

548

548

483

483

483

483

483

483

483

483

483

AQO

483

483

548

620

620

620

620

1,930

2 CQf\

5,840

7,150

6,200

A win

3,300

2

7OA

2 of A

1,700

1 

' 400

o Estimated. 

NOTE, Daily discharge computed from a rating curve fairly well defined above 200 second-feet.
46 SURFACE WATER SUPPLY, 19X1, PART H.

Monthly discharge of Flint River near Woodbury, Ga.,for 1911. 

[Drainage area, 1,090 square miles.]

Month.

April....................................

July.....................................

October. ................................

Discharge in second-feet.

Maximum.

2,580 

2,580 

3,140 

2,040 

785 

1,640 

5,820 

424 

1,310 

2,860 

7,150

7,150

Minimum.

548 

483 

548 

323 

203 

203 

239 

203 

86 

424 

483

86

Mean.

ol,030 

1,120 

810 

1,280 

591 

328 

592 

980 

275 

411 

891 

1,620

827

Per 

square 

mile.

0.945 

1.03 

.743 

1.17 

.542 

.301 

.543 

.899 

.252 

.377 

.817 

1.49

.759

Run-off 

(depth in 

inches on 

drainage 

area).

1.09 

1.07 

.86 

1.30 

.62 

.34 

.63 

1.04 

.28 

.43 

.91 

1.72

10.29

Accuracy.

C. 

B. 

B. 

B. 

B. 

B. 

B. 

B. 

B. 

C. 

B. 

B.

a Estimated by comparison with, other Flint River stations. 

FLINT RIVER NEAR CULLODEN, GA.

Location. At Grays Ferry, 14 miles southwest of Culloden, Ga., 1J miles above the

mouth of Auchumpkee Creek, and about 3 miles above the old gage near Musella,

Ga., which was read for a short time in 1907. 

Records available. July 1 to December 31, 1911. 

Drainage area. 2,000 square miles. 

Gage. Vertical timber attached to a willow stump on the left bank just below the

ferry landing; datum unchanged. 

Channel. Sandy and likely to shift at the station, but a rock ledge one-half mile

below will probably give a permanent control. 

Discharge measurements. Made from the ferryboat. 

Cooperation. Gage observer paid by the Central Georgia Power Co.

Discharge measurements of Flint River near Culloden, Ga., in 1911.

Date.

Sept. 15

Hydrographer.

M.R.Hall... ................................................................

Gage 

height.

Feet. 

1.69

1.25

Discharge.

Sec.-ft. 

512

279

NOTE. Measurements made from boat.
EASTERN GULF OF MEXICO BASINS. 47

Daily gage height, in feet, of Flint River near Culloden, Ga.,for 1911. 

[Walter Blasengame, observer.]

Day.

1......... 

2.........

3.........

4.........

5.........

6......... 

7. ......... 

8.........

9.........

10..........

11..........

12..........

13..........

14..........

15..........

July.

1.65 

1.4 

1.4 

1.2 

1.2

1.5 

2.0 

1.6 

1.5 

2.0

1.9 

2.2 

2.4 

2.4 

3.2

Aug.

1.4 

2.6 

6.7 

8.1 

5.4

3.5 

2.7 

2.3 

2.1

2.8

2.3 

2.25 

2.4 

2.3 

2.1

Sept.

1.45 

1.4 

1.5 

2.55 

1.5

1.6 

1.55 

1.8 

1.7 

1.65

1.55 

1.4 

1.45 

1.5 

1.6

Oct.

1.25 

1.2 

1.25 

1.2 

1.1

1.15 

1.2 

1.0 

1.15 

1.2

2.1 

1.3 

1.2 

1.15 

1.5

Nov.

2.7 

2.55 

2.35 

1.9 

2.0

1.9 

2.4 

2.45 

3.4 

4.2

4.1 

4.6 

4.5 

3.1 

2.9

Dec.

2.35 

2.3 

2.25 

2.1 

2.15

,2.05 

2.0 

1.95 

2.0 

2.05

2.0 

2.0 

2.0 

2.05 

2.1

Day.

16......... 

17.........

18......... 10

20.........

21......... 

22.......... 

23......... 

24..........

OC

26..........

V7

28..........

29..........

30..........

31..........

July.

2.7 

3.4 

3.2 

3.9 

3.2

2.7 

2.3 

2.3 

2.3 

2.1

2.0 

1.8 

1.8 

1.6 

1.6 

1.55

Aug.

1.9 

1.2 

2.8 

3.0

2.7

2.3 

2.1 

1.8 

1.6 

1.9

1.7 

1.6 

1.55 

1.5 

1.45 

1.5

Sept.

1.55

1.4 

1.55

1.7 

1.65

1.8 

1.75 

2.0 

1.7 

1.65

1.4 

1.55 

1.45 

1.2 

1.3

Oct.

1.35 

1.3 

2.4 

2.15 

1.65

1.5 

9.4 

5.1 

3.4 

2.55

2.4 

2.0 

2.3 

3.2 

3.4 

3.0

Nov.

2.6 

2.55 

2.4 

2.3 

2.35

2.2 

2.15 

2.0 

2.05 

2.1

1.9 

2.0 

2.15 

2.2 

2.4

Dec.

2.4 

2.5 

2.45 

2.4

2.85

5.4 

5.9 

9.9 

9.0

7.8

6.5 

5.7 

5.0 

4.9 

4.1 

4.6

Daily discharge, in seconi-feet, of Flint River near Culloden, Ga.,for 1911.

I>ay.

l.........

2.........

3.........

4.........

5.........

6.........

7.........

8.........

9.........

10.........

11.........

12.........

13.........

14.........

15.........

July.

504 

360 

360 

257 

257

415 

735 

473 

415

735

665 

890 

1,050 

1,050 

L,790

Aug.

360 

[,220 

5,950 

),840 

1,670

2,120 

L310 

970 

810 

1,400

970 

930 

1,050 

970

810

Sept.

388 

360 

415 

1,180 

415

473 

444 

598 

534 

504

444 

360 

388 

415 

473

Oct.

282 

257 

282 

257 

210

234 

257 

165 

234 

257

810 

307 

257 

234 

415

Nov.

1,310 

1,180 

1,010 

665

735

665 

1,050 

1,090 

2,010 

2,960

2,830 

3,490 

3,350 

1,690 

1,490

Dec.

1,010 

970 

930 

810 

850

772 

735 

700 

735 

772

735 

735 

735 

772 

810

Day.

16.........

17

18.........

19.........

20.........

21 .........

22.........

23.........

24.........

25.........

26.........

27.........

28.........

29......... in

31 .........

July.

1,310 

2,010 

1,790 

2,580 

1,790

1,310 

970 

970 

970 

810

735 

598 

598 

473 

473 

444

Aug.

665 

257 

1,400 

1,590 

1,310

970 

810 

598 

473 

665

534 

473 

444 

415

388 

415

Sept.

444 

360 

444 

534 

504

598 

566 

735 

534 

504

360

444 

388 

257 

307

Oct.

334 

307 

1,050 

850 

504

415 

13,000 

4,200 

2,010 

1,180

1,050 

735 

970 

1,790 

2,010 

1,590

Nov.

1,220 

1,180 

1,050 

970 

1,010

890 

850 

735 

772 

810

665 

735 

850 

890 

1,050

Dec..

1,050 

1,130 

1,090 

1,050 

1,440

4,670 

5,510 

14,200 

12,000 

9,170

6,580 

5,170 

4,050 

3,910 

2,830 

3,490

NOTE. Dally discharge computed from a rating curve fairly well defined below 2,700 second-feet. Above 

6,000 second-feet the estimates are only approximate.

Monthly discharge of Flint River near Culloden, Ga.,for 1911. 

[t»rainage area 2,000 square miles.]

Month.

July.. ........................... ...L...

Discharge in second-feet.

Maximum.

2,580 

9,840 

1,180 

13,000 

3,490 

14,200

Minimum.

257 

257 

257 

165

665 

700

Mean.

896 

1,480 

479 

1,180 

1,310 

2,880

Per 

square 

mile.

0.448 

.740 

.240 

.590 

.655 

1.44

Run-off 

(depth in 

inches on 

drainage 

area).

0.52 

.85 

.27 

.68 

.73 

1.66

Accuracy.

A. 

B. 

A. 

B. 

B. 

C.

1520° WSP 302 13
48 SURFACE WATEE SUPPLY, 1911, PAET II.

FLINT RIVER NEAR MONTEZUMA, GA.

Location. At the iron highway bridge about 1 mile west of Montezuma. This is the 

second, or upper, wagon bridge. It is above the mouth of Bucks Creek.

Records available. October 1, 1904, to December 31, 1911.

Drainage area. 2,700 square miles.

Gage. Chain gage attached to the upstream side of the bridge; datum unchanged.

Channel. The right bank will overflow for a great distance at a stage of about 12 feet. 

The overflowed portion is largely covered with a dense growth of brush. The left 

bank is not liable to overflow. The current toward the left bank becomes sluggish 

at low stages, and at times there is considerable back current near the bank. The 

bottom is somewhat shifting.

Discharge measurements. Made from the downstream side of the highway bridge.

Artificial control. The flow is not appreciably affected by artificial control.

Accuracy. A fairly good rating has been developed, but gage heights are very 

uncertain and the data should be used with caution.

Cooperation. Gage heights are furnished by the United States Weather Bureau.

Discharge measurements of Flint River near Montezuma, Ga., in 1911.

Date.

July 25

26

Oct. 25

T>ftrt Q

Hydrographer.

M. R. Hall.... ...........................................................

.....do....................................................................

.....do....................................................................

Gage 

height.

Feet. 

2.98

2.74

9.30

2.47

Discharge.

Sec.-ft. 

1,690

1.610

6,080

1,340

Daily gage height, in feet, of Flint River near Montezuma, Ga.,for 1911.

Day.

1. ..............

2...............

3...............

5. .........

6...............

7...............

8...............

10...............

11...............

12. ..............

13...............

15...............

16............ ..

17......-..-

18. .........

10

20. ..............

21...............

22. ..............

23.... ...........

24...............

25. ..............

26...............

27...............

28...............

29...............

30...............

31...............

Jan.

5'0

5.4

5.9

6.2

5.7

5.3

5.0

5.7

6.2

5.6

4.9

4.3

4.0

3.6

3.9

3.5

3.0

3.4 

3.7

3.9

4.6

4.9

4.6

4.9

5.1

5.5

5.0

4.4

4.0

3.6

Feb.

3.2

3.0

3.4

3.7

4.1

4 Q

4.6

5.1

5.7

5.9

6.2

6.5

6.7

6.3

5.8

5.3

5.0 

4.6

4.1

3.8

3.5

3.1

3.5

3.2

3.6

3 Q

3.5

Mar.

3.1

3.3

3.0

2.8

2.5

2 A

2.5

2.8

3.0

3.3

2.8

2.7

2.9

2.6

2.5

2.4

2

C

2.7

2.8

2.8

2.6

2.7

3.5

6.4

8.0

8.3

7.1

Apr.

5.7

4.4

3.8

3.4

3 7

5.3

6.6 7 P;

7.6

7.0

6.7

6.9

6.6

5.7

5.0

4.2

A 9

4.7

4.5

4.0

3.5

3.3

3.1

3.0

3.0

3.0

May.

3.0

3.2

3.5

4.0

3.5

3.1

2.8

2.5

2 4.

2.3

2.2

2.2

2.1

2.0

2.0

2.0

1.8

1.9 

1.8

2 n

2.7

3.3

3.5

4.6

5.3

A K

3.5

2.6

2.3

2.1

June.

1.9

1.7

1.7

1.5

1.6

1.8

1.6

1.5

1.3

1.3

1.5

1.3

1.3

1.3

1.1

1.0

.9

.8

1.6

2.1

2.3

2.2

1 Q

1.5

1.5

1.8

2.1

July.

1.6

1.6

1.3

1.3

1.7

1.7

1.4

1.7

1.7

1.5

1.8

2.4

2.5

2 6

3.4

""5."2"

5.1

5.0

4.3

3.3

3.2

3.0

2.8

2.3

2.0

1.8

1.7

1.5

Aug.

1.3

1.5

4.3

7.0

8.3

9

0

9 9

5.1

3.5

3.0

5.0

3 7

3.2

3.0

3.0

2.7

2.4

2.5

3 A

3

0

3.0

2.5

2.1

2.0

2.0

2 9

1.7

1.5

1.4

1.4

Sept.

1.4

1.4

1.3

1.3

1.6

1.7

1.8

1 Q

1.4

1.6

1.2

1.1

1.0

1.0

9

1.1 

1.0

1 3

1.4

1 9

1.7

1.6

1.6

1 t

1 9

1.1

1.0

Oct.

0.9

.8

.8

.7

.6

.6

.6

.6

.5

.6

1.1

1.5

1 3

1 9

1.2

1 9

2.1

2 7

2.8

2 q

2

0

5.5

8

O

9 4

5 9

3

0

3.2

4 <;

4.4

Nov.

4.7

4.2

3.8

3.3

2.9

2

ft

O 7

3.2

3.6

4.6

6.1

6.5

6.8

6.6

5.3

4.5

3 Q

3.4

3

0

3.5

3

O

3 fl

2.9

2 7

2 7

2.6

2

C

2 7

3.3

3 Q

Dec.

3.6

3.3

3.1

2.9

2.9

2.6

2.6

2.5

2.5

2.4

2.4

2.4

2.4

&4

2.4

3.8

4.8

4.4

4.1

3 7

4.2

7.4

11.8

19 Q

14.1

13 Q

13 1

12.0

10.6

8.9
EASTEEN GULF OF MEXICO BASINS. 49 

Daily discharge, in second-feet, of Flint River near Montezuma, Ga.,for 1911.

Day.

1. .."............

2...............

3...............

4...............

5...............

6...............

7................

8...............

9...............

10...............

11...............

12. ..............

13...............

14. ..............

15. ..............

16. ..............

17...............

18...............

19. ..............

20...............

21...............

22

23...............

24. ..............

25. ..............

26. ..............

27...............

28...............

29. ..............

30...............

31...............

Jan.

2,810

3,070

3,410

3,620

3,270

3,000

2,810

3,270

3,620

3,200

2,740

2,380

2,200

1,980

2,140

1,930

1,680

1,880

2,040

2,140

2,320

2,560

2,740

2,560

2,740

2,880

3,140

2,810

2,440

2,200

1,980

Feb.

1,780

1,680

1,880

2,040

2,260

2,440

2,740

2,560

2,880

3,270

3,410

3,620

3,840

3,980

3,690

3,340

3,000

2 01 ft

2,560

2,260

2,090

1,930

1,730

1,930

1,780

1,980

2,140

1,930

Mar.

1,730

1,830

1,680

1,580

1,430

1,380

1,280

1,430

1,580

1,680

1,830

1,730

1,580

1,680

1,530

1,630

1,480

1,430

1,330

1,380

1,430

1,530

1,580

1,580

1,480

1,530

1,930

3,760

5,000

5,240

4,280

Apr.

3,270

2,440

2,090

1,930

1,880

2,040

3,000

3,910

4,600

4,680

4,210

3,980

4,210

4,280

4,140

3,910

3,270

2,810

2,440

2,320

2,320

2,620

2,500

2,200

1,930

1,830

1,730

1,680

1,680

1 

' 680

May.

1,680

1,780

1,930

2,200

1 930

1,730

1,580

1,430

1,380

1,330

1,280

1,280

1,230

1,180

1,180

1,180

1,100

1,140

1,100

1,060

1,180

1,530

1,830

1,930

2,560

3,000

2,500

1,930

1,480

1 ^3fi

1,230

June.

1,140

1 060

1,060

980

1,020

1,100

1,020

980

900

900

980

900

Qftft

900

820

780

740

740

74O

700

1,020

Kfifl

1,230

1,330

1,280

i 110

980

980

1,100

1,230

July.

1,020

1,020

900

900

1,060

1,060

940

1,060

1,060

980

1,100

1,380

1,430

1,480

1,880

o2,140

o2,410

2,9*

2,880

2,810

1,830

1,780

1,680

1,580

1,330

1,180

1,100 i nftn

980

Aug.

900

980

2,380

4,210

5,240

6,080

6,000

2,880

1,930

1,680

2,810

2,040

1,780

1,680

1,680

1,530

1,380

1,430

1,880

2,260

2,090

1,680

1,430

1,230

1,180

1,180

1,280

1,060

980

Q4A

940

Sept.

^40

940

900

900

1,020

1,280

1,060

1,100

1,140

940

1,020

940

860

820

780

780

740

820

780

940

900

940

1,140

1,060

1,020

1,020

900

860

820

780

Oct.

740

700

700

660

660

620

620

620

620

580

620

820

980

900

860

860

860

1,230

1,530

1,580

1,330

1,580

3,140

5,160

6,160

2,940

1,830

1,780

2,320

2,500

2,440

Nov.

2,620

2,320

2,090

1,830

1,630

1,480

1,530

1,780

1,980

2,560

3,550

3,840

4,060

3,910

3,000

2,500

2,140

1,880

1,830

1,930

1,780

1,680

1,630

1.530

1,530

1,480

1,430

1,530

1,830

2,140

Dec.

1,980

1 830

1,730

1,630

1,630

1,480

1,480

1,430

1,430

1,380

1,380

1,380

1,380

1,380

1,380

2,090

2,680

2,440

2,260

2,040

2,320

4,520

7,080

8,450

9,550

10,800

10,600

9,750

8,650

7,270

5,740

» Discharge interpolated by comparison with other Flint River stations. 

NOTE. Daily discharge computed from a rating curve fairly well defined above 1,000 second-feet.

Monthly discharge of Flint River near Montezuma, Ga.,for 1911. 

[Drainage areja, 2,700 square milps.

Month.

January ................................

March ..................................

April...................................

May....................................

July....................................

Discharge in second-feet.

Maximum.

3,620 

3,980 

5,240 

4,680 

3,000 

1,330 

2,940 

6,080 

1,280 

6,160 

4,060 

10,800

10,800

Minimum.

1,680 

1,680 

1,280 

1,680 

1,060 

700 

900 

900 

740 

580 

1,430 

1,380

580

Mean.

2,630 

2,560 

1,950 

2,850 

1,590 

984 

1,510 

2,090 

938 

1,55.0 

2,170 

3,840

2,050

Per 

square 

mile.

0.974 

.948 

.722 

1.06 

.589 

.364 

.559 

.774 

.347 

.574 

.804 

1.42

.759

Run-off 

(depth in 

inches on 

drainage 

area).

1.12 

.99 

.83 

1.18 

.68 

.41 

.64 

.89 

.39 

.66 

.90 

1.64

10.33

Accuracy.

B 

B 

B 

B 

B 

C 

C 

B 

C 

C 

B 

B
50 SURFACE WATER SUPPLY, 1911, PART H.

FLINT RIVER AT ALBANY, GA.

Location. At the Dougherty County highway bridge in the city of Albany, 700 feet 

below the Atlantic Coast Line Railroad bridge.

Records available. April 10, 1893, to December 31, 1911 (United States Weather 

Bureau gage heights). Discharge measurements were begun by the Geological 

Survey in 1901, and estimates of daily discharge have been made from January 1, 

1902, to December 31, 1911.

Drainage area. 5,000 square miles.

Gage. Standard chain gage, installed at the bridge by the United States Geological 

Survey April 20, 1904. The original staff gage was washed out in 1898. It was 

again injured in 1902, and on June 18, 1902, a new gage was installed by the 

United States Weather Bureau at a datum 0.75 foot lower than that of the former 

gage. The 1902 gage heights, as published by the United States Weather Bureau 

and the United States Geological Survey, all refer to the new gage datum. The 

present standard chain gage has the same datum and reads in conformity with the 

United States Weather Bureau gage.

Channel. The channel at and below the gage may be slightly shifting, but the control is such that conditions of flow are practically permanent. The river overflows both banks, but only under the approaches to the bridge.

Discharge measurements. Fairly accurate measurements can be made at the 

section at the Atlantic Coast Line bridge, although it is very rough, and train 

switching in the railroad yard interferes with the work. The section at the 

Georgia Northern Railway bridge, 1 mile above, at which measurements are sometimes made, is considered better, especially for medium and low stages.

Artificial control. Power developments on Muckalee Creek, which joins Flint 

River about 2 miles above the station, cause considerable diurnal fluctuation, 

especially at low stages. It is probable that the flow is also affected by other 

power plants farther up the river.

Accuracy. As the records are based on one gage reading a day, made at 7 a. m., it is 

probable that the estimates of daily discharge are somewhat in error, especially 

at low stages. The actual daily discharge is probably greater than that indicated 

by the 7 a. m. reading.

Cooperation. Gage heights are furnished by the United States Weather Bureau.

Discharge measurements of Flint River at Albany, Ga., in 1911.

Date.

Oct. 24

8

Hydrographer.

.....do....................................................................

.....do....................................................................

height.

Feet. 

2.55

.90

1.04

Discharge.

See.-ft. 

4,340

2,630

2,750

NOTE. Measurements made at the Georgia Northern Railway bridge.
EASTERN GULP OF MEXICO BASIN'S. 51

Daily gage height, in feet, of Flint River, at Albany, Ga.,for 1911. 

[D. W. Brosnan, observer.]

Bay.

i... ......:.....

2...............

3...............

4...............

5...............

6...............

7...............

8...............

g

10...............

11...............

12...............

13...............

14...............

15...............

16...............

17...............

18...............

19...............

20...............

21...............

22...............

23...............

24...............

25...............

26...............

27...............

28...............

29...............

30...............

31...............

Jan.

1.6

1.5

1.9

2.5

2.5

4.7

5.5

6.0

6.3

7.8

7.5

7.3

6.1

4.0

2.7

2.0

1.5

1.5

1.4

1.4

1.3

1.3

1.5

1.7

2.1

2.1

1.8

1.5

1.3

1.3

1.1

Feb.

1.0

1.0

1.0

1.1

1.3

1.5

1.2

1.0

1.0

1.2

1.5

1.8

2.1

2.6

3.9

4.7

5.6

5.2

4.3

2.8

2.5

2.3

1.8

2.4

3.1

2.8

2.1

1.5

Mar.

1.1

1.0

1.0

1.0

1.2

1.5

1.5

1.7

1.8

1.8

1.4

1.2

.9

.7

.7

.6

.5

.3

.7

1.1

1.6

1.6

1.2

.7

.4

.8

1.4 i a

2.C

4.2

4.8

Apr.

4.9

3.2

2.6

2.1

1.4

1.8

1 O

2.4

3.2

4.3

4.5

4.8

4.7

4.7

4.6

4.3

4.2

3.7

3.4 2.5

1.9

1.8

2.1

2.2

1 Q

1.7

1.4

1.3

1.2

1.0

May.

0.9

1.1

1.1

1.1

1.0

1.4

1.1

.9

.6

.6

.4

.3

.3

.3

.3

.2

- .1

- .1

- .3

- .3

- .2

.2

2.3

2.5

2.5

2.7

2.8

2.4

1.3

.6

June.

0.4

.3

.2

- .1

- .2

- .2

- .4

- .2

.0

.3

- .1

- .2

- .3

- .5

- .7

- .8

- .8

- .9

-1.0

-1.0

- .9

- .1

- .7

.1

- .3

- .5

- .3

.0

July.

-0.4

- .4

- .1

- .2

- .6

- .5

- .5

.0

.0

- .1

.0

.0

.0

.0

.2

1.0

1.4

2.0

2.4

2.8

2.9

2.5

2.5

2.3

1.8

1.3

1.0

.9

.3

.0

- .4

Aug.

-0.4

.0

.3

1.2

3.3

4.6

5.5

5.0

4.7

2.2

.7

1 9

1.5

1.7

1.7

1.4

1.4

1.3

1 O

1.7

1.9

1.8

1.5

1.4

.8

.5

.3

.1

.2

.1

.0

Sept.

0.0

.5

.1

- .1

.1

.1

.0

.5

.7

.4

.2

.3

.2

.1

- .1

- .3

- .5

- .7

- .6

- .6

- .4

- .4

- .2

- .2

.0

.0

.5

.4

.2

- .1

Oct.

-0.5

- .8

- .7

- .7

-1.0

-1.0

- .8

-1.0

-1.1

-1.1

1.1 -1.1

-1.0

- .5

- .6

- .8

.0

- .5

.2

1.0

1.7

1.5

1-1

2.5

3.5

4.4

5.1

2.9

1.8

1.3

1.5

Nov.

1.9

2.0

2.0

2.0

1.5

.8

1.0 -1.0

1.0

1.4

1 Q

2.4

2.9

3.4

3.5

3.2

2.4

2.0

1.5

1.1

1.1

1.0

1.1

.9

.7

.7

.7

.7

.8

.6

Dec.

1.6

2.1

1.4

1.8

1.6

1.1

.9

.8

.8

.9

.8

.6

.6

.9

1.4

2.9

4.8

5.0

4.6

4.6

5.0

10.7

19.0

20.5

19.6

18.5

17.2

16.5

16.0

14.8

Daily discharge, in second-feet, of Flint River at Albany, Ga.,for 1911.

Day.

1..... ..........

2...............

3...............

4...............

5...............

6...............

7...............

8...............

9...............

10...............

11...............

12...............

13. ..............

14. ..............

15...............

16...............

17.... ......... ..

18...............

19...............

20. ..............

21...............

22...............

23.... .......... .

24...............

25...............

26...............

27...............

28...............

29............... 

30...............

31...............

Jan.

3,200

3,110

3,480

4,080

6,590

7,540

8,170

8,540

W 4Oft

10,000

9,800

S qnft

5,780

4,300

3,570

3,110

3,110

3,020

3,020

2,930

2 930

3' 110

3

9QA

3,670

3 670

3,380

3,110

2,930 

2,930

2,760

Feb.

2,670

2.670

2,670

2 ?fin

2,930

3,110

2,840

2,670

2,670

9 sun

3,110

3.380

3,670

4,190

5,670

6,590

7,670

7,180

6,130

4 410

4,080

3,870

3,380

3,980

4,750

4,410

3,670

3,110

Mar.

2 7flft

2,670

2,670

2,670

2

QAf\

3,110

3,110

3,290

3,380

3,380

3,020

2,840

2

COA.

2,420

2,420

2,330

2

OPU1

2,090

2,420

2,760

3,200

3,200

2 49ft

2,170

2,500

3,020

3,380

4,190 

6,020

6,700

Apr.

6,820

4,860

4,190

3,670

3,020

3,380

3,480

3,980

4,860

6,130

6,360

6,700

S KQft

6,590

6,480

6,130

6,020

5,100

4,080

3,480

3,380

3,670

3,770

3,480

3,290

3,020

2,930

2,840 

2,670

May.

2

COft

2,760

2,760

2 7fift

2,670

3,020

2,760

2,580

2,330

2,330

2,170

2,090

2 AQft

2,090

2,090

2,010

1,780

1,780

1,620

1,620

1 7ftft

1,700

2,580

3,870

4 080

A. ftSft

4,410

3,980 

2,930

2,330

June.

2,170

2,090

2,010

1,780

1,700

1,700

1,550

1,700

1,850

2,090

2,010

1,780

1,700

1,620

1,480

1,340

1,280

1,280

1,220

1,160

1,160

1,220

1,780

1,340

1,550

1,930

1,620

1 480

l'620 

1,850

July.

1 P^ft

1,550

1,780

1,700

1,410

1 480

l'480

1,850

1.850

1,780

1,850

1,850

1 S^ft

1,850

2,010

2,670

3,020

3,570

3,980

4,410

4,520

4,080

4 080

3' 870

3,380

2,930

2,670

2,580

2,090 

1,850

1,550

Aug.

i ^ttfi

1,850

2,090

2,840

4 980

6,480

7,540

6 940

6^590

3,770

2 49ft

3,110

3,290

3,290

3,020

3,020

2 QQft

3,480

3

9QA

3,480

S

QQfK

3,110

3,020

2,500

2,250

2,090

1 930

2*010 

1,930

1,850

Sept.

1 ocn

2,250

1 930

l'780

1 930

1 930

1^850

2 OCA

2,420

2,170

2,010

2,090

2,010

i oan

1,780

1,620

1 480

1 HAD

1.410

1,410

1,550

1 ^ft

1,700

1,700

1,850

1,850

2,250

2,170

2,010 

1,780

Oct.

1,480

1,280

1,340

1,340

1,160

1,160

l,2iO

1,160

1,110

1,110

1,110

1,110

1,160

1,480

1,410

1,280

1 OCA

1,480

2,010

2,670

3,290

3,110

2 7ACI

4,080

5,210

6,240

7 060

4^520

3,380 

2,930

3,110

Nov.

3 480

3', 570

3,570

3,570

3,110

2,500

2,670

2,670

2,670

3,020

3,480

3 osn

4,520

5,100

5,210

4 860

3 non

3,570

3,110

2 7fifi

2,760

2,670

2,760

2

CQft

2,420

2,420

2,420

2,420

2,500 

2,330

Dec.

3 Oftft

3,670

3,020

3,380

3,200

2,760

2,580

2,500

 2,500

2 eon

2,580

2,500

2

QOfl

2,330

2,580

3,020

4,520

6,700

6,940

6,480

6 480

6 940

1^000 07 ftftn

OA inn

28,200

26,100

23,800

22,600 

21,800

19,800

NOTE. Daily discharge computed from a rating curve well defined between 2,000 and 24,000 secondfeet and fairly well defined below 48,000 second-feet.
52 SUEFACE WATER SUPPLY, 1911, PAET 11.

Monthly discharge of Flint River at Albany, Ga.,for 1911. 

[Drainage area, 5,000 square miles.]

Month.

April ...................................

May....................................

July....................................

Discharge in second-feet.

Maximum.

10,400 

7,670 

6,700 

6,820 

4,410 

2,170 

4,520 

7,540 

2,420 

7,060 

5,210 

30,100

30,100

Minimum.

2,760 

2,670 

2,090 

2,670 

1,620 

1,160 

1,410 

1,550 

1,340 

1,110 

2,330 

2,330

1,110

Mean.

4,770 

3,970 

3,050 

4,550 

2,640 

1,640 

2,490 

3.320 

1,860 

2,380 

3,220 

9,550

3,630

Per 

square 

mile.

0.954 

.794 

.610 

.910 

.528 

.328 

.498 

.664 

.372 

.476 

.644 

1.91

.726

Run-off 

(depth in 

inches on 

drainage 

area).

1.10 

.83 

.70 

1.02 

.61 

.37 

.57 

.77 

.42 

.55 

.72 

2.20

9.86

Accuracy.

B. 

B. 

B. 

B. 

C. 

C. 

C. 

C. 

C. 

C. 

B. 

B.

FLINT KIVEK AT BAINBKIDGE, GA.

Location. At the county wagon bridge half a mile from Bainbridge and about 25 

miles above the confluence of Flint and Chattahoochee rivers.

Records available. October 7, 1904, to December 8, 1911 (Weather Bureau gageheight readings). Discharge measurements were begun by the Geological Survey 

June 11, 1908, and estimates of daily discharge have been made from January 1, 

1908, to December 31, 1911.

Drainage area. 7,410 square miles (United States Weather Bureau).

Gage. Standard chain gage attached to the highway bridge. The datum has not 

been changed since June 11, 1908, at which time it was adjusted to its original 

datum. During part of the time prior to this date the chain was wrongly adjusted. 

Gage heights for 1908 were all corrected before publication in Water-Supply 

Paper 242.

Channel. Bed is soft and likely to shift, but appears to have remained fairly permanent as indicated by constancy of discharge ratings.

Accuracy. It is possible that daily discharge as determined by one gage-height 

reading a day may be somewhat in error for individual days; otherwise the accuracy is good for low and medium stages.

Cooperation. Gage heights are furnished by the United States Weather Bureau.

The following discharge measurement was made by R. E. Robertson: 

October 23, 1911: Gage height, 3.04 feet; discharge, 3,630 second-feet.
EASTlB2<r GtJLP OP MEXICO BASINS. 

Daily gage height, in feet, of Flint River at Bainbridge, Ga.,for 1911.

53

Day.

1...............

2...............

3...............

4...............

5...............

6...............

7...............

8:..............

9...............

10...............

11...............

12...............

13...............

14...............

15...............

16...............

17...............

18...............

19...............

20...............

21...............

22...............

23...............

24...............

25...............

26...............

28...............

29...............

30...............

31...............

Jan.

3.4

3.4

3.6

4.1

4.2

5.1

6.0

6.8

7.7

8.4

8.7

8.6

7.5

6.4

5.7

5.1

5.0

4.9

4.6

4.6

4.4

4.2

4.1

4.0

4.1

4.0

4.2

4.0

4.0

3.8

Feb.

3.8

3.7

3.6

3.6

3.5

3.6

3.6

3.5

3.4

3.7

3.8

4.8

4.2

4.4

5.1

5.5

6.2

6.1

6.0

5.7

5.6

5.2

4.7

4.6

4.8

4.6

4.3

Mar.

4.0

3.9

3.8

3.7

3.6

3.6

3.4

3.4

3.5

3.6

3.6

3.3

3.2

3.3

3.2

3.1

3.1

3.0

2.9

2.9

3.0

3.0

3.1

3.1

3.2

3.2

4.0

4.4

5.4

6.4

Apr.

6.7

6.2

5.7

5.4

5.1

5.2

5.0

5.7

5.8

5.9

6.2

6.8

7.0

7.0

7.1

6.9

6.9

6.7

6.5

5.9

5.5

5

,1

5.4

5.3

5.2

4.8

4.1

4.0

3.9

May.

3.8

3.8

3.8

3.8

3.7

3.7

3.7

3.6

3.6

3.1

3.3

3.3

3.4

3.5

2.7

2.7

2.6

2.6

2.6

2.5

2.5

2.5

2.5

3.0

3.5

3.8

4.4

4.5

4.0

3.6

June.

3.3

3.0

2.8

2.5

2.4

2.3

2.3

2.4

2.4

2.3

2.2

2.2

2.2

2.1

2.1

2.1

2.0

1.9

1.8

1.6

1.6

1.6

1.7

1.8

1 Q

2.0

2.0

2.7

2.0

2.0

July.

2.0

2.6

2.5

2.3

2.5

2.5

2.4

2.3

2.3

2.4

3.0

3.0

3.3

3.5

3.2

3.0

3.6

4.0

4.4

4.9

5.1

5.0

4.7

4

C

4.3

4.0

3.8

3.3

3.0

2.6

Aug.

2.4

2.4

2.3

2.3

2.5

3.5

4.4

6.0

6.4

6.4

5.1

4.0

3.9

4.1

3.9

3.0

3.6

3.5

3.5

3.5

3.5

3.6

4.0

3.9

3.3

3.0

&. O

2.6

2.5

2.4

2.4

Sept.

2.3

2.3

2.4

2.6

2.5

2.3

2.1

2.5

2.4

2.3

2.3

2.3

2.2

2.2

2.1

2.0

1.9

1.7

1.6

1.6

1.5

1.6

1.7

1.7

1.8

1.8

i. y

2.2

2.1

2.0

Oct.

1.9

1.7

1.5

1.5

1.4

1.3

1.3

1.2

1.2

1.2

1.2

1.3

1.3

1.4

1.4

1.7

1.5

1.5

1.4

1.7

1.7

1.8

2.0

2.8

3.8

4.8

5.3

5.8

4.6

3.9

3.6

Nov.

3.7

3.8

4.0

4.2

4.0

3.7

3.2

3.2

3.2

3.3

3.4

3.9

4.3

4.7

5.1

5.3

5.2

4.6

4.2

3.9

3.5

3.5

3.5

3.4

3.4

3.2

. u

2.8

2.9

3.2

Dec.

3.5

3.4

3.4

3.4

3.3

3.5

3.6

3.3

3.3

3.2

3.1

3.0

3.0

3.0

3.1

3.2

3.5

4.8

6.4

7.3

7.3

7.3

8.0

13.3

17.3

20.3

2l! 3

20.3

19.5

19.0

Daily discharge, in second-feet, of Flint River at Bainbridge, Ga.,for 1911.

Day.

1.. .............

2...............

3...............

4...............

5...............

6...............

7...............

8...............

9...............

10...............

11...............

12. ..............

13...............

14...............

15...............

16...............

17...............

18...............

19...............

20...............

21...............

22...............

23...............

24...............

25...............

26...............

27...............

28...............

29...............

30...............

31...............

Jan.

3,900

3,900

4,030

4,380

4,450

5,130

5,870

6,590

7,480

8,330

8,740

8,600

7,260

6,230

5,610

5,130

5,050

4,970

4,730

4,730

4,590

4 4>tf

4,380

4,310

4,380

4,310

4,380

4,450

4,310

4,310

4,170

Feb.

4,170

4,100

4,030

4,030

3,960

4,030

4,030

3,960

3,900

4,100

4,170

4,890

4,450

4,590

5,130

S

ylKA

6,050

5,960

5,870

5,610

5,530

5,210

4,810

4,730

4,890

4,730

4,590

4,520

.......

Mar.

4,310

4,240

4,170

4,100

4,030

4,030

3,900

3,960

4,030

4,030

3,840

3,780

3,840

3,780

3,720

3,720

3,660

3,600

3,600

3,660

3,660

3,720

3,720

3,780

3,780

3,900

4,310

4,590

5,370

6,230

Apr.

6,500

6,050

5,610

5,370

5,130

5,210

5,050

5,610

5,690

5,780

6,050

6,590

6,770

6,770

6,860

6,680

6,680

6,500

5,780

5,450

5,370

5,370

5,290

5,210

4

QGA

4,730

4,380

4,310

4,240

May.

4,170

4,170

4,170

4,170

4,100

4,100

4,100

4

AQA

4,030

3,720

3,840

3,840

3 Qflft

3,960

3,480

3 A on

3,420

3,420

3,420

3,360

3,360

3,360

3,360

3,660

3 QCA

4,170

4

Attf\

d ion

4,660

4,310

4,030

June.

3,840

3,660

3,540

3,360

3,310

3,260

3,260

3,310

3,310

3,260

3,210

3,210

3,160

3,160

S ifio

3,110

3,060

3,010

2,910

2,910

2 Q1O.

2 Qfin

3,010

0 ACfl

3,110

3,110

3,110

3,110

July.

3,110

3,420

3,360

3,360

3,360

3,310

3,260

3,310

3,660

3 840

3,' 960

4,030

3 *7GA

3

AOA

4,030

4,310

4 con

4

Q7A

5,130

5,050

4,810

4 660

4,520

4,310

4,170

3 840

3,660

3,420

Aug.

3,310

3,310

3,260

3,260

3,360

3,960

4,590

5,870

6,230

6,230

5,130

4,310

4 240

4,240

3,660

4,030

3,960

0 QfiA

3,960

3,960

4 030

4' 310

4,240

3

QAf\

S fififi

3 ZATI

3,360

3,310

3,310

Sept.

3,260

3,260

3,310

3,420

3,360

3,160

3

o«fl

3,310

3,260

3,260

3,260

3 91 ft.

3,160

3,110

S ftfirt

2,960

2 Gin

2,910

2,860

2

Q1A

2,960

2,960

3,010

3,010

3,060

3 9in

3,160

3,110

Oct.

3,060

2,960

2,860

2,860

2,820

2,780

2,780

2

7JA

2,740

2,740

9 74/t

2,780

2

7CA

2,820

2,820

2 960

2,860

2,860

2,820

2

QAA

2

QAA

3,010

3,110

3

KAf\

4,170

4 oon

S OQfi

S AQft

4,730

4 240

4,' 030

Nov.

4,100

4,170

4,310

4,450

4,310

4,100

3,780

3,780

3,780

3,840

S Qftfi

4,240

4,520

4,810

5,130

5,290

5,210

4,730

4

4.cn

4,420

3,960

3 Qfin

3,960

3 QflA

3

QAA

3

7CA

3,660 i iun

3,600

3,780

Dec.

3,960

3,900

3,900

3,900

3,840

3,960

4,030

3

QA(\

3,840

3,780

3,720

3,660

3,660

3,660

3,720

3

7CA

3 QCA

4,890

6

00ft

7 060

7 060 ?' 060

?' 830 '

......

NOTE. Daily discharge computed from a rating curve fairly well defined between 3.000 and 15,000 

second-feet. The discharge exceeded 16,000 second-feet on days for which estimates are not given.
54 SUBFACE WATER SUPPLY, 1911, PAST II.

Monthly discharge of Flint River at Bairibrldge, Go., for 1911.

[Drainage area, 7,410 square miles.]

Month.

May.....................................

July.....................................

Discharge in second-feet.

Maximum.

8,740 

6,060 

6,230 

6,860 

4,660 

3,840 

5,130 

6,230 

3,420 

5,690 

5,290

Minimum.

3,900 

3,900 

3,- 600 

4,240 

3,360 

2,910 

3,110 

3,260 

2,860 

2,740 

3,540

Mean.

5,260 

4,700 

4,030 

5,670 

3,900 

3,200 

3,910 

4,070 

3,140 

3,300 

4,170

Per 

square 

mile.

0.710 

.634 

.544 

.765 

.526 

.432 

.528 

.549 

.424 

.445 

.563

Run-off 

(depth in 

inches on 

drainage 

area).

0.82 

.66 

.63 

.85 

.61 

.48 

.61 

.63 

.47 

.51 

.63

Accuracy.

A.' 

A. 

A. 

A. 

A. 

B. 

A. 

A. 

B. 

B. 

A.

NOTE. Monthly estimates are published only for those months during which the gage heights were 12.5 

feet and under. When sufficient measurements are obtained to develop the high-water portion of the 

rating curve the tables will be completed and published in a later report.

CHOCTAWHATCHEE BIVEB BASIN. 

CHOCTAWHATCHEE EIVER NEAR NEWTON, ALA.

Location. At the wagon bridge 1 mile west of Newton, Ala., and 1 mile below the 

railroad crossing at Elba Junction, Ala., about 5 miles below the mouth of West 

Choctawhatchee River.

Becords available. June 11, 1906, to October 13, 1906; April 22,1907, to August 22, 

1908; October 20, 1911, to December 31, 1911.

Drainage area. Not determined.

Gage. Standard chain gage attached to the downstream side of the wagon bridge; 

datum unchanged. The gage heights during 1906 were taken from a vertical gage 

near Elba Junction, but they were reduced to agree with the chain gage.

Channel. Both banks are high and not likely to overflow. Conditions of flow may 

possibly be affected by dredging of channel.

Discharge measurements. Made from the wagon bridge.

Artificial control. Probably some effect from email power plant above.

Accuracy. There was probably some change in the controlling section during 1911 

requiring a revision of the rating. As no rating was developed for the changed 

conditions, estimates of daily discharge are not given for 1912.

Cooperation. Gage observer paid by the Alabama Geological Survey.

Discharge measurements of Choctawhatchee River near Newton, Ala., in 1911.

Date.

Oct. 20

20

Hydrographer.

R. E. Robertson.. ........................................................

.....do....................................................................

Gage 

height.

Feet. 

2.67

2.67

Discharge.

Sec.-ft. 

319

327
EASTERN GULF Or MEXICO BASINS.

<age height, in feet, of Choctawhatchee River near Newton, Ala., for 1911. 

[J. M. Hodge, observer.]

Day.

1... ......... 

2............ 

3............

4............ 

5............

6............ 

7............ 

8............ 

9............

10............

Oct.

......

------

Nov.

2.7 

2.6 

2.4

2.3 

2.3

2.7 

3.1 

3.2 

3.1 

3.0

Dec.

3.5 

3.4 

3.4

3.3 

3.2

3.0 

3.1 

3.0

2.8 

2.9

Day.

11............ 

12............ 

13............

14............ 

15............

16............ 

17............ 

18............ 

19............ 

20............

Oct.

......

"2." 7

Nov.

2.9

2.8

*) 7

2.6 

2.6

2.5 

2.5 

2.6 

2.5 

2.4

Dec.

2.7 

2.9 

2.9

2.8 

2.7

3.0 

3.2 

3.6 

3.5 

4.0

Day.

21............ 

22............ 

23............

24............ 

25............

26............ 

27............ 

28............ 

29............ 

30............

31............

Oct.

2.3 

2.7

2.7

2.6 

2.6

2.5 

2.4 

2.3 

2.4 

2.5

2.4

Nov.

2.4 

2.4 

2.3

2.4 

2.5

2.4 

2.6 

41 

40 

3.8

Dec.

4.5 

4.0 

17.4

12.4 

7.6

6.7 

5.6 

5.4 

5.3 

5.3

5.0

PEA RIVER AT PERA, ALA.

Location. At the Eltxm wagon bridge, half a mile west of Pera, Ala. It is about 10 

miles above the mouth of Flat Creek, and no tributary streams except very small 

ones come in nearer the station.

Records available. August 27, 1904, to December 31, 1911.

Drainage area. 1,180 square miles.

Gage. Standard chain gage attached to the bridge; datum unchanged.

Channel. In soft rock; nearly permanent.

Discharge measurements. Made from the downstream side of the wagon bridge 

to which the gage is attached.

Artdncial control. Power plants on Whitewater Creek, a tributary stream above the 

station, cause diurnal fluctuations in the low-water flow. The gage is read twice 

a day to lessen the effect of such fluctuations.

Accuracy. The estimates of daily discharge may be considerably in error for individual days due to the operation of the power plants above the station.

Cooperation. Gage observer paid by the Alabama Geological Survey.

Discharge measurements of Pea River at Pera, Ala., in 1911.

Date.

Oct. 19

19

Hydrcgrapher.

R. E. Robertson.... . .....................................................

.....do....................................................................

height.

Feet. 

3.00

3.03

Discharge.

Sec.-ft. 

388

400
56 . SURFACE WATER SUPPLY, 1911, PART IE.

Daily gage height, in feet, of Pea River at Pera, Ala., for 1911. 

[W. G. Early, observer.]

Day.

1....... ........

2...............

3...............

4...............

5...............

6...............

7...............

8...............

9...............

10...............

11...............

12...............

13...............

14...............

15. ..............

16...............

17...............

18...............

19...............

20...............

21...............

22...............

23...............

24...............

25...............

26...............

27...............

28. ..............

29...............

30...............

31...............

Jan.

6.0

5.4

10.4

15.0

12.6

11.4

10.4

9.2

8.2

7.9

7.5

6.7

6.2

5.8

5.6

5.4

5.2

5.2

5.0

4.9

5.0

4.8

4.8

4.8

4.6

4.6

4.7

4.8

4.8

4.6

4.6

Feb.

4.5

4.4

4.3

4.4

5.0

4.6

4.4

A 1

4.2

4.2

4.2

4.4

5.6

6.0

5.8

5.4

5.2

5.1

4.9

6.0

8.8

6.8

5.C

5.2

5.0

4.7

4.2

Mar.

4.2

4.2

3.95

4.0

3.8

3.75

3.7

3.75

3.6

3.6

3.6

3

C

3.55

3.5

3.45

A 9

3.85

1 7

3.45

3

OC

3.5

3.65

4.0

4.3

4.4

5.9

11 9

10. G

8.0

6.4

5.6

Apr.

5.0

4.5

4.1

3

0

5.2

8.0

6.6

5.8

6.3

8.8

7.4

12.8

1Q A

in i

8.3

7

0

6.6

5.9

5.5

Q A

9 ft

7.4

6.3

5.6

5.2

4.7

4.5

5.0

5.2

4.8

May.

5.0

7.0

7.2

6.6

6.0

5.6

5.1

4.7

4.2

3.7

3.45

3

0

O. 1

3.15

2.9

2

7C

2.65

2.95

2.95

3 A

Q. 9

3.2

3.05

3.15

3.75

3 A

2.95

2.75

2.6

2.4

2.3

June.

2.8

2.85

2.55

2.35

2.25

2.1

2.4

2.95

2.9

2.55

2.35

2 1

2.15

2.2

1.95

2

0

2.85

9 1

1.85

2 7

O Q

2.85

2.6

3.15

2.65

2.65

2

0

i n

3.15

2.7

July.

2.8

2.5

3.8

4.1

3.1

2.7

2.4

2.3

2.3

3.0

3.0

2

0

3

0

2

0

2

0

2

K

3 Q

5.0

4.5

4.8

4.4

4.2

3.7

3.6

3 1

3.0

2.7

2.3

2.2

2.1

1.9

Aug.

1.9

2.5

3

0

4.2

4.2

3.8

2.9

2.8

2.6

2.4

2.4

2.6

1 7

3.8

4.0

3.6

3

C

3.5

4.4

5.6

4

0

4.1

3.6

3.0

2.8

2.6

2.4

2.0

2.0

2.3

2.2

Sept.

2.1

2.2

2.2

1.8

1.7 2*.0

2.1

2.5

2.8

2.6

2.6

2.8

9 A

2.1

2.0

O ft

2.0

2.1

2.2

2.1

2.0

2.0

1.9

1.9

1.8

1.8

1.9

1.8

1.8

1.7

Oct.

1.7

1.6

1.5

1.6

1.6

1.6

1.6

1.5

1.6

1.5

1.9

2 Q

O. 1

2.6

2.2

2.0

2.1

3.3

3.1

2.8

2.4

3.3

4.1

3.6

3 9

2.8

2.6

2.5

2.6

2.4

2.5

Nov.

2.5

2.4

2.2

2.2

2.1

2.05

2.9

1 A

3.4

3.2

3.2

2.9

2.7

2.8

2.6

2.6

2.5

2.6

2.7

2.6

2.8

2.6

2.4

2.4

2.6

2.4

2.4

4.6

6.4

5.4

Dec.

4.6

4.2

3.8

3.6

3.6

3.4

3.2

3.1

3.0

3.0

2.8

3

rt

2.8

3.0

2.9

3 A

3 A

2.8

3.0

3

0

6.7

8.4

21.8

20.6

15.5

12.9

11.4

10.4

8.9

8.4

14.0

Daily discharge, in second-feet, of Pea River at Pera, Ala., for 1911.

Day.

1... ............

2...............

3.......... ....

4...............

5...............

6...............

7...............

8...............

9...............

10.............:.

11...............

12...............

13...............

14...............

15...............

16...............

17...............

18...............

19...............

20...............

a... ...... ......

22...............

23...............

24...............

25...............

26...............

27. ..........

28...............

29...............

30...............

31...............

Jan.

1,160

965

2,930

5,050

3,950

3,390

2,930

2,400

1,980

1,860

1,700

1,400

1,220

1,090

1,030

965

906

906

850

822

850

794

794

704.

741

741

767

794

794

741

741

Feb.

715

691

667

691

850

741

691

667

644

644

644

691

1,030

1,160

1,090

965

906

878

822

1,160

2,230

1,430

1,030

906

850

767

691

644

Max.

644

589

600

556

546

535

546

515

515

515

495

505

495

486

644

567

535

486

466

495

525

600

667

691

1,120

3,620

3,030

1,900

1,290

1,030

Apr.

orft

715

632

578

Qflfi

1,900

1 360

l'090

1,260

2,230

1 fififi

4 OiO

4,130

2,890

2,020

1,620

1,360

1,120

995

2,490

2,310

1 fifift

1,260

Qflfi

767

715

850

906

794

May.

850

1,510

1,590

1,360

1,160

1,030

878

767

RM.

535

486

457

419

428

381

353

335

390

390

400

438

438

410

428

546

476

390

353

326

295

280

June.

372

318

288

273

252

295

390

381

318

288

252

259

266

231

362

372

280

217

344

362

372

326

428

335

335

280

400

428

344

July.

362

310

556

622

419

344

295

280

280

400

400

362

457

362

362

310

578

850

715

794

691

644

535

515

419

400

344

280

266

252

224

Aug.

224

310

457

R44.

644

556

381

362

326

295

295

326

535

556

600

515

495

495

691

1,030

667

622

515

400

362

326

295

238

238

280

266

Sept.

252

266

266

210

197

238

252

310

362

326

326

362

295

252

238

238

238

252

266

252

238

238

224

224

210

210

224

210

210

197

Oct.

197

184

171

184

184

184

184

171

184

171

224

362

419

326

266

238

252

457

419

362

295

457

622

515

438

362

326

310

326

295

310

Nov.

310

295

266

266

252

245

381

476

476

438

438

381

344

362

326

326

310

326

344

326

362

326

295

295

326

295

295

741

1,290

935

Dec.

741

644

556

515

515

476

438

419

400

400

362

400

362

400

381

400

400

362

400

556

1,400

2,060

8,180

7,630

5,280

4,080

3,390

2,930

2,270

2,060

4,590

NOTE. Daily discharge computed from a well-defined rating curve.
EASTEBN GtJLP OF MEXICO BASINS.

Monthly discharge of Pea River at Pera, Ala., for 1911. 

[Drainage area, 1,180 square miles.]

Month.

January. ................................

May.....................................

July.....................................

August ..................................

Discharge in second-feet.

Maximum.

5,060 

2,230 

3,620 

4,130 

1,590 

428 

850 

1,030 

362 

622 

1,290 

8,180

8,180

Minimum.

741 

644 

466 

578 

280 

217 

224 

224 

197 

171 

245 

362

171

Mean.

1,490 

889 

834 

1,500 

605 

324 

440 

450 

253 

303 

402 

1,710

767

Per

square 

mile.

1.26 

.753 

.707 

1.27 

.513 

.275 

.373 

.381 

.214 

.257 

.341 

1.45

.650

Run-off 

(depth in 

inches on 

drainage

area).

1.45 

.78 

.82 

1.42 

.59 

.31 

.43 

.44 

.24 

.30 

.38 

1.67

8.83

Accuracy.

A. 

B. 

B. 

A. 

B. 

B. 

B. 

B. 

B. 

B. 

B. 

A.

ESCAMBIA RIVER BASIN. 

CONECUH RIVER AT BECK, ALA.

Location. At Simmons Bridge at Beck, about 12 miles below the mouth of Patsaliga Creek, 8 miles west of Andalusia, Ala., a station on the Central of Georgia

and Louisville & Nashville railroads.

Records available. August 24, 1904, to December 31, 1911. 

Drainage area. 1,290 square miles. 

Gage. Standard chain gage attached to the upstream side of the wagon bridge;

datum unchanged. 

Channel. In soft bedrock and practically permanent. Both banks are subject to

overflow at high stages.

Discharge measurements. Made from the wagon bridge. 

Artificial control. The flow is probably not affected by artificial control but at

times may be affected by logging operations. 

Accuracy. Conditions of flow at this station are practically permanent and a good

rating has been developed. 

Cooperation. Gage observer paid by the Alabama Geological Survey.

Discharge measurements of Conecuh River at Beck, Ala., in 1911.

Date.

Oct. 18

18

Hydrographer.

.....cio..............................-.----.......--.--.'-......-....-.-....

&.

Feet. 

1.71

1.68

Discharge.

Sec.-ft. 

340

336
58 SURFACE WATER SUPPLY, 1911, PART n.

Daily gage height, in feet, of Conecuh River at Beck, Ala., far 1911. 

[J. F. Hicks, observer.]

Day.

1..... ..........

2............... 

3...............

4............... 

5...............

6...............

7............... 

8...............

9...............

10...............

11...............

12...............

13...............

14...............

15...............

16...............

17...............

18............... 

19...............

20...............

21...............

22...............

23...............

24...............

25...............

26...............

27...............

28...............

29...............

Q.fl

31...............

Jan.

"~9." 2"

8.8 

8.2

7.6

7.4

6.9

6.4

5.6

5.1

4.7

4.3

3.9

3 7

3.6 

3.5

3 d.

3.4

3.5

3.3

3.2

3.2

3.2

3.3

3 9

3 9

Feb.

3.1

3.0 

3.0

3.1

3.0

3.0 

2.9

2.9 

2.9

2.9

3.5

4.4

4.4

4.3

A. 9

3.9

5.5

4.4

4.0

3.7

3.5

3.1

3.0

Mar.

9 q

2.8 

2.8

2.7

2.6

2.6 

2.6

2.5 

2.4

2.5

2.4

2.3

2.4

2.4

2

0

2.3

2

e

2.3

2

e

3.0

2.7

2.7

10.2

6.5

4.8

4.0

3.6

Apr.

3.3

"2." 85"

2.65

5 A

8.6

8.4 

7.4

"JUJ"

9 ft

13.9

14.2

13.5

11.5

7.5 

6.1

Q A

9 9

7 Q

6.0

5.6

5.1

4.5

4.4

4.3

May.

4.4

6.0

5.1 

5.2

5.0 "i's"

4.0 

3.45

3.05

2.85

2.7

2.4

2.35

2 25

2.2 

2.1

2.25

2.95

2.65

4.0

4.1

4.4

4.6

3.6

2.35

June.

2.2

1.95 

1.9

"i.~85~

3.25

3.05

2.7

2.75 

2.5

1.95

1.85

1.7

1.55

1.4

1.75

.......

1.75

1.95

1.9

2.05

2.25

1.9

1.9

1.85

2.2

3.75

July.

2.8

'"2.2

'"2.1

2.0

1.9 

1.7

'"2.1

2.6

2.5

2.2

2.0

2.2

4.7

4.2 

3.1

3.4

4.1

4.0

2.8

2.5

2.4

2.1

2.1

1.9

1.6

Aug.

2.0

3.2 

3.0

3.1 

2.9

2.7 

2.6

2.4 

2.0

1.8

2.2

2.8

2.2

3.2

3 A

3.0 

4.0

3.3

3.1

2.6

2.3

2.1

2.0

1.6

1.5

1.5

1.5

Sept.

1.4

1.4

""i.Y

1.5

1.6 

1.8

1.9

3.0

2.1

1.9

1.6

1.6

1.5

1.3 

1.4

1.4

1.5

1.6

1.5

1.4

1.4

1.3

1.3

1.2

1.1

Oct.

1.0 

1.0

.9 

.9

.9

.8

.75 

1.3

1.4

1.6

1.6

1.5

1.4

1.7

1.7 

1.5

1.5

1.5

1.5

1.5

1.4

1.4

1.4

1.4

1.4

1.3

Nov.

1.4

1.3 

1.3

1.1

1.2

2.0

1.4

1.7 

1.6

1.6

1.7

1.7

1.6

1.6

1.6

1.6

1.6

1.5

1.5

1.5

1.5

1.5

1.4

3.2

2.3

Dec.

2.5

2.6

2.2 

2.1

2.0

1.9 

1.9

1.9

1.8

1.8

1.7

1.7

1.7

1.8

1.8 

1.9

2.3

3.3

3.1

9.5

6.7

6.4

6.2

5.8

5.7

5.3

Daily discharge, in second-feet, of Conecuh River at Beck, Ala., for 1911.

Day.

1...............

2...............

3...............

4...............

5...............

6...............

7...............

8...............

9...............

10...............

11...............

12...............

13...............

14...............

15...............

16...............

17...............

18...............

19...............

20...............

21...............

22. ..............

23...............

24...............

25...............

26

27...............

28...............

29...............

30...............

31...............

Jan.

1,930

2,870

3,800

3,580

3,240

2,910

2,810

2,680

2 iuft

2,270

1,830

1,590

1,400

1,210

1,120

1 ftAft

955

Q14.

874

834

834

854

874

795

757

757

757

795

776

757

757

Feb.

720

684

684

720

702

684

684

650

650

650

650

762

874

1,260

1,260

1,210

1,170

1,040

1,410

1,780

1,260

1,170

1,080

955

874

797

720

684

Mar.

650

617

617

585

570

554

554

524

496

524

510

496

4«Q

496

4.QA

469

4«Q

496

524

469

524

684

585

585

2,470

4,360

2 0,9ft

1 440

1,080

914

Apr.

795

714

634

570

1,730

3,470

3,350

2,810

3,420

4,030

4,030

6,460

6,630

5,100

4,280

2 0fift

2 inft

3,350

3,800

S

ftOA

2,540

2,050

1 00ft

1,590

1 300

1,260

1,210

1 

' 240

May.

1,260

2,050

1,680

1,090

1,640

1 540

l' 4.0ft

1,440

1,080

854

7O9

634

585

540

Ana

482

456

143

418

456

562

667

570

1 flQft

1,120

1 qcn

1,020

ftSM

583

,189

June.

443

384

373

368

362

776

702

585

601

524

454

384

362

332

Qfly|

97ft

QQ7

QQO

384

Q7Q

456

414

Q7Q

373

362

443

Q7A

July.

617

530

443

430

418

395

373

332

375

418

554

524

443

395

443

922

1,400

1,170

720

834

1,120

1,080

848

617

Mil

496

418

418

373

343

313

Aug.

395

757

684

720

650

618

585

554

AQR

395

352

443

530

617

443

7K7

834

684

1,080

938

795

554

469

418

QQC

354

qiq

9QC

90S

295

Sept.

278

278

284

290

295

295

313

352

Q7Q

528

684

418

373

313

QIQ

295

278

262

278

278

295

QIQ

295

286

97ft

97ft

O£O

262

247

f)nn

Oct.

226

220

220

208

208

208

197

194

192

262

278

313

313

295

286

278

332

009

295

295

295

295

295

295

278

97ft

97ft

278

278

97ft

262

Nov.

278

262

262

233

240

395

278

QO O

313

313

322

332

332

313

qiq

QI Q

Q1Q

*>iq

QIQ

295

295

295

295

295

OQfi

97ft

757

461

496

Dec.

524

554

498

443

418

395

373

373

Q7O

362

352

352

332

332

332

*>K9

352

QC9

Q7Q

ARQ

795

720

3,970

3,200

2 430

9 97fl

v 1 Aft

1 940

1,'890

1,680

2

1Qf|

NOTE. Daily discharge computed from a rating curve fairly well defined below 7,000 second-feet. Discharge interpolated for days when gage was not read.
.EASTEEN GULF OF MEXICO BASINS. 59

Monthly discharge of Conecuh River at Beck, Ala., for 1911. 

[Drainage area, 1,290 square miles.]

Month.

April. ...................................

May....................................

July....................................

Discharge in second-feet.

Maximum.

3,800 

1,780 

4,360 

6,630 

2,050 

976 

1,400 

1,080 

684 

332 

757 

3,970

6,630

Minimum.

757 

650 

469 

570 

418 

278 

313 

295 

233 

192 

233 

332

192

Mean.

1,580 

921 

842 

2,860 

942 

438 

590 

562 

318 

267 

326 

1,000

887

Per 

square 

mile.

1.22 

.714 

.653 

2.22 

.730 

.340 

.457 

.436 

.247 

.207 

.253 

.775

.688

Run-off 

(depth in 

inches on 

drainage 

area).

1.41

 .74 

.75 

2.48 

.84 

.38 

.53 

.50 

.28 

.24 

.28 

.89

9.32

Accuracy.

A. 

A. 

B. 

A. 

B. 

B. 

B. 

B. 

B. 

B. 

B. 

B.

MOBILE RIVER BASIN. 

OOSTANAULA RIVER AT RESACA, GA.

Location. At the Western & Atlantic Railroad bridge in Resaca, Ga., 3 miles below 

the junction of Conasauga and Coosawattee rivers and 1 mile above the mouth of 

Camp Creek.

Records available. 1891 to 1898 (gage heights by the United States Weather Bureau 

and discharge measurements and gage heights by the United States Geological 

Survey). 1899 to 1904, partial records of gage heights; continuous records January 

1, 1905, to December 31, 1911.

Drainage area. 1,610 square miles.

Gage. Heavy vertical timber attached to the downstream side of the bridge pier in 

the middle of the river; datum unchanged.

Channel. Slightly shifting at and below the station. The left bank is low and overflows during high water for 480 feet.

Discharge measurements. Usually made from the downstream side of the railroad bridge, but at times are made from a boat at the ferry about 200 feet above, 

where the section is somewhat better.

Artificial control. Except on the smaller tributaries there are very few milldams, 

and these have little or no effect on the flow at the station. The channel is sometimes obstructed by logs under the left span of the bridge.

Accuracy. A good rating has been developed for low and medium stages.

Cooperation. Gage heights are furnished by the United States Weather Bureau.

The following discharge measurement was made by M. R. Hall: 

December 12, 1911: Gage height, 2.24 feet; discharge, 747 second-feet.
60 SURFACE WATER SUPPLY, 1911, PART II.

Daily gage height, in feet, ofOostanaula River at Resaca, Ga.,for 1911.

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...............

Jan.

4.8

ft fl

17 13

20.0

18.4

16.0

12.6

6.0

5 A

5.3

5.1

4.8

4.6

4.4

4.0

4.0

3.8

3.8

3 7

3.6

3.6

3.6

3.4

3.2

t n

3 0

3.8

3.6

4.0

Feb.

4.0

4

ft

4.2

4.2

4.6

4.6

4.6

5.0

9 9

11.2

11.4

13.0

9 6

7.0

6.0

5.8

5.6

5.4

K 9

6.0

8 n

7 °.

5.3

5.0

A C

A C

5.2

6.6

Mar.

5.6

5.4

6.0

5.6

5.4

4.6

4.8

4.7

4.7

4.6

4 4

4.2

4.0

4.0

3.8

3

D

3.6

3 A

3.4

A C

5.2

4.8

4.2

3.8

3.6

3

D

4.8

6.4

4.4

3.8

3.6

Apr.

3 A

3.6

8.4

n

o

10 7

11.4

10 7

91 9

19 0

14.8

9 A

4.3

3

D

5.2

6.0

5.6

6.0

n

o

11.0

9 q

6.8

5.6

5 A

C O

5.0

5.0

5.5

5.3

May.

5.2

5

ft

5.0

4.8

4.6

4.2

4.0

4.0

3.8

3

D

3.8

3.6

3.6

3.6

3.6

3 A

3 A

3 A

3.6

3

D

4.2

5.8

8.0

K 9

4.5

3 d

3.8

3.8

3.6

3 A

June.

3 A

3 A

3.4

3.4

3 A

3 A

3 A

3.2

3.2

3.2

3 n

3 n

O Q

2.9

2.8

2

Q

2.8

2.8

2

Q

3.6

A 9

4.2

3.0

3.0

t n

O O

2.8

3.0

3.4

3.2

July.

3 n

2

0

2 a

2

Q

3 A

4.0

3*8

3.6

3 A

3.4

4.0

4.0

3.8

4.6

4.4

4.2

4.0

3.6

3 9

2

0

2 A

2.2

3.0

3.2

4.0

3

1

2.5

2.3

2.2

1.8

1.8

Aug.

1.8

9 rt

3 A

2.8

2.6

2.2

4.2

3.8

3.6

3.6

3.2

3.0

1.8

1.8

1.7

1.8

2.0

2.6

2.6

2.4

2.2

2.0

1.9

1.9

1.9

1.8

1.8

1.8

1.8

1.7

1.7

Sept.

1.7

1.7

1.7

1.7

1 Q

2 A

2.0

1.9

1.7

 1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.4

1.4

1.4

1.3

Oct.

1.3

1 Q

1 3

1.2

1.2

1.2

1.2

1.2

1.2

1.2

4.0

2.4

2.0

1.7

1.7

1.7

6.0

12.4

7.0

4.6

Q n

2.4

2.3

2.3

2

0

9 9

2.2

2.0

2.0

2.0

2.0

Nov.

1.8

1.8

1.6

1.6

1.5

1.4

3.0

7.3 "; n

4.2

4.2

4.0

5.0

4.9

4.6

Q i

3.2

3.0

5.0

4.1

3 n

2.7

2.6

2.4

2.4

2.4

2.6

3.0

3.2

5.2

Dec.

2.8

2

0

9 A

2.6

2,7

2.7

2.7

2.7

2.6

2.4

2.2

2.2

2.2

2.2

2.7

2.9

3.0

3.3

3.3

3.5

3.8

5.0

11.0

9.8

8.8

7.7

13.0

13.6

12.5

11.0

6.8

Daily discharge, in second-feet, ofOostanaula River at Resaca, Ga.,for 1911.

Day.

1...............

2...............

3...............

4...............

5...............

6...............

7.. .............

8...............

9...............

10...............

11...............

12...............

13...............

14...............

15...............

16...............

17...............

18...............

19...............

20...............

21...............

22...............

23...............

24...............

25...............

26...............

27...............

28...............

29...............

30............... 

31...............

Jan.

2,350

5,870

14,400

Ifi fiflfi

IS, 000

12,600

9,270

3,270

2,800

2,730

2,580

2,350

2,200

2,040

1,760

1,760

1,630

1,630

1,570

1,500

1,500

1,500

1,380

1,260

1 140

1,260

1,500

1,630

1,500

1,760 

2,040

Feb.

1,760

1 onn

1,900

1 QftA

2,200

2,200

2,200

2,500

6,050

7,920

8,110

9 fifift

6,410

4,110

3,270

3,110

2,960

2,800

'2,650

3 O7fl

4,980

4,370

2,730

2,500

2,350

2 OKA

2,650

3,770

Mar.

2

QAA

2

QAA

3,270

2 Qfifi

2,800

2,200

2,350

2,270

2,270

2,200

2

(\A{\

i oflfl

1,760

1,760

1,630

1,630

1,500

1

O.QA,

1,380

2

O.KA

2,650

2 OKA

1,900

1,630

1,500

1,630

2,350

3

CAA

2,040

1,630 

1,500

Apr.

1 KAO.

1 °.crt

1,380

1,500

5,330

to onn

in °.fift

8,110

16,300

17 fififl

15,600

11 400

6,410

1,970

1,630

2

CEA

3,270

2

QCA

3 97O.

7,920

7,730

6 140

3

QJA

2

QCA

2

QAA

2

CEA

2

KAA

2

KAA

2,880

2,730

May.

S

een

2

Q£A

2 OKA

S Oflfi

9 AJfl

i onn

1,760

1,760

1,630

1,630

1,630

1,500

1,500

1,500

1,500

1,380

I

OQrt

I

O.Q/I

1,500

1,630

1 900 3', no

4,980

9 flP»A

2,120

I

ftQO.

1,630

1,500 

1,380

June.

1 Qsn

1 ssrt

1,380

1 °.fift

1,380

1 °.fift

1,380

1,260

1,260

1,260

1 140

1 140

l'080

1,080

1,030

1,030

1,030

1,030

1,030

1,500

1,900

1 QO.O.

1,140

1,140

1 140

1,030

1,030

1 140

1,380

1,260

July.

1 140

1^030

1,030

1,030

1,380

1,760

1,630

1,500

1.380

1,380

1,760

1,760

1,630

2,200

2,040

1,900

1,760

1,500

1,260

1,030

820

726

1,140

1,260

1,760

1,200

870

779

726

560 

560

Aug.

560

640

1,140

1,030

920

726

1,900

1,630

1,500

1,500

1,260

1,140

560

560

522

560

640

920

920

820

726

640

600

600

600

560

560

560

560

522

522

Sept.

coo

coo

522

522

600

640

640

600

522

486

486

486

486

486

486

486

486

486

486

452

452

452

452

452

452

452

420

420

420

390

Oct.

O.Qfl

QOrt

390

O.RA,

360

O.RA,

360

O.RA,

360

360

1,760

820

640

522

522

522

3,270

9,070

4,110

2 onn

1,140

820

772

772

726

726

726

640

640

640 

640

Nov.

560

560

486

486

452

420

1,140

4,370

2,500

1 QftA

1,900

1,760

2,500

2,420

2,200

1,380

1,260

1 140

2^500

1,830

1,140

972

920

820

820

820

920

1 140

1,260

2,650

Dee.

1,030

1,030

920

920

972

972

972

972

920

820

726

726

726

726

972

1,080

1,140

1,320

1,320

1 440

1,630

2,500

7,730

6,600

5,690

4,720

9,660

10,200

9,170

7,730 

3,940

NOTE. Daily discbarge computed from a rating curve well defined below 7,700 second-feet.
EASTERN GULF OF MEXICO BASINS.

Monthly discharge ofOostanaula River at Resaca, Ga.,for 1911. 

[Drainage area, 1,610 square miles.]

61

Month.

April...................................

May

July....................................

August. ................................

October. ................................

Discharge in second-feet.

Maximum.

16,600 

9,660 

3,600 

17,800 

4,980 

1,900 

2,200 

1,900 

640 

9,070 

4,370 

10,200

17,800

Minimum.

1,140 

1,760 

1,380 

1,380 

1,380 

1,030 

560 

522 

390 

360 

420 

726

360

Mean.

3,880 

3,660 

2,140 

5,710 

1,960 

1,250 

1,310 

835 

492 

1,140 

1,440 

2,880

2,210

Per 

square 

mile.

2.41 

2.27 

1.33 

3.55 

1.22 

.777 

.814 

.519 

.306 

.708 

.895 

1.79

1.37

Run-off 

(depth In 

inches on 

drainage 

area).

2.78 

2.36 

1.53 

3.96 

1.41 

.87 

.94 

.60 

.34 

.82 

1.00 

2.06

18.67

Accuracy.

A. 

A. 

A. 

A. 

A. 

A. 

A. 

A. 

A. 

A. 

A. 

A.

COOSA EIVER AT RIVERSIDE, ALA.

Location. At the Southern Railway bridge at Riverside, Ala., 1 mile above the 

mouth of Blue Eye Creek and about 7 miles above Choccolocco Creek.

Records available. September 25, 1896, to December 31, 1911.

Drainage area. 7,060 square miles.

Gage. Standard chain gage attached to the right-bank end of the downstream side 

of the railroad bridge. The original wire gage was located on the downstream 

side of the bridge near the middle of the river. The gage datum has not been 

changed since the station was established.

Channel. For a part of the width the current is broken by a ledge above. Both 

banks are high and do not overflow, and the bed of the stream is rocky and 

permanent.

Discharge measurements. Made from the downstream side of the railroad bridge.

Artificial control. The flow is not noticeably affected by artificial control at the 

comparatively few dams above. Four navigation locks have been constructed, 

the nearest of which is Lock 4, about 4 miles above the station.

Cooperation. The gage observer is paid by the Alabama Geological Survey.

The following discharge measurement was made by R. E. Robertson: 

August 28, 1911: Gage height, 1,10 feet; discharge, 2,480 second-feet.
62 SURFACE WATER SUPPLY, 1911, PART H.

Daily gage height, in feet, of Coosa River at Riverside, Ala., for 1911. 

[ J. O. Thompson and J. E. Whitehead, observers.]

Day.

1...............

2...............

3...............

4...............

5...............

6.... ...........

7.. ............

8...............

9...............

10. ..............

11...............

12...............

13...............

14...............

15...............

16...............

17...............

18...............

19...............

20...............

21...............

22...............

23...............

24...............

25...............

26...............

27...............

28...............

29...............

30. ..............

31...............

Jan.

2.0

3.3

8.0

10.0

12.0

12.2

12.0

10.1

8.6

5.9

4.5

4.0

3.2

3.0

2.9

2.8

2.7

2.6

2.5

2.6

2.5

2.3

2.2

2.2

2.2

2.2

2.1

2.1

2.2

2.1

Feb.

2.2

2.1

2.0

2.2

9 9

2.2

2.9

3.1

3.7

5.1

5.8

6.0

6.2

ft Q

7.1

6.2

5.2

4.4

4 1

4.1

4.1

4.3

4.7

4.5

3.9

3.5

3.1

3.0

Mar.

2.9

3 A

3.8

3.7

3.6

3.5

3.2

3.0

2.7

2.7

2.6

2.6

2.5

2 4

2.4

2.3

2.3

2.2

9 9

2.1

2.2

2.4

3.1

2.9

2.7

2.4

2.9

3.9

5.0

4.8

4.3

Apr.

3.85

3

0

2.85

2.65

3 OK

6.8

9.4

10.8

14.2

14 4

14 0

13.6

 to A

12.0

10.1

8.4

7.2

5.6

5.4

6.1

6.8

6.6

6.0

5.1

4.2

3.85

3.7

3.35

May.

3.15

3.15

3.05

3.05

9 Q5

2.85

2.75

2.55

2.55

2.45

2.35

2.35

2.25

2.15

2.05

1.95

1.85

1.85

1.75

1.95

2.25

3.55

3.55

3.95

3.75

3.55

3.05

2.75

2 25

2.05

June.

1.95

1.95

1.85

1.75

1.75

1.75

1.65

1.75

1.65

1.55

1.55

1.55

1.45

1.35

1.25

1.25

1.25

1.15

1.15

1.35

1.75

1.95

1.95

1.75

1.65

1.55

1.45

1.75

1.95

2.15

July.

2.0

1.9

1.8

1.8

1.7

1.6

1.6

1.6

1.7

1.8

1.9

2.1

2.5

2.3

2.7

2.6

3.4

3.7

46

3.9

3.0

2.8

2.9

3.2

3.5

3.9

3.6

3.2

2.0

2.5

2.6

Aug.

2.6

3.2

4.2

5.2

5.3

4.1

3.9

3.1

2.0

2.5

2.8

2.7

2.5

2.4

2.5

2.6

2.6

2.6

2.7

3.3

2.0

2.7

2.5

2.3

2.1

2.0

1.9

1.1

1.0

1.0

1.0

Sept.

1.0

1.0

1.0

1.0

1.0

1.2

1.2

- 1.2

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

Oct.

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.2

3.0

3.0

1.9

1.3

1.3

1.3

2.2

4.8

5.3

4.2

2.3

1.6

1.4

1.2

1.2

1.2

1.0

1.0

1.0

Nov.

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.1

3.4

4.5

5.4

4.5

3.7

3.2

3.0

3.0

2.8

2.6

2.6

2.6

2.5

2.4

2.4

2.0

2.0

2.0

2.0

2.0

1.8

1.8

Dec.

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.5

1.4

1.4

1.4

1.6

1.6

1.7

1.7

1.8

1.9

2.8

4.4

5.5

6.0

7.0

7.8

8.3

8.6

9.6

10.6

10.8

10.2

10.0

Daily discharge, in second-feet, of Coosa River at Riverside, Ala., for 1911.

Day.

1...............

2...............

3...............

4...............

5...............

6...............

7...............

8...............

9...............

10...............

11...............

12...............

13. ..............

14. ..............

15...............

16...............

17...............

18...............

19...............

20...............

21...............

22...............

23. ..............

24...............

25...............

26...............

27...............

28...............

29...............

30...............

31...............

Jan.

4,380

8,060

25,600

34,100

42,600

43,400

42,600

34,500

28,100

17,100

12,000

10,300

9,020

7,750

7,140

6,840

6,540

6,250

5,970

5,700

5,970

5,700

5,160

4,900

4,900

4,900

4,900

4,640

4,640

4,900

4,640

Feb.

4,900

4,640

4,380

4,900

4,900

4 ono

6,840

7,440

9,340

14,200

16,800

17,500

18,300

21,000

21,800

18,300

14,500

11,700

10,600

10,600

10,600

11,300

12, 700

12,000

9,980

8,700

7,440

7,140

Mar.

6,840

8,380

9,660

9,340

9,020

 8, 700

7,750

7,140

6,250

6,250

5,970

5,970

5,700

5,420

5

AO/1

5,160

5,160

4,900

4,900

4,900

5,420

7 AAS\

6,840

6,250

5,420

6,840

9,980

13,800

13,100

11,300

Apr.

9,820

7,750

6,690

6,110

9,820

20 600

o-i cnn

37,500

52,000

cq onfi

52,800

51,100

AQ 4ftfl

42 600

°.j. *yift

97 °.ftft

22,300

16,000

1 f* °.fift

17,900

20,600

19,800

17,500

14,200

11,000

9,820

9

0dfi

9,020

8,220

May.

7,600

7,600

7,290

7,290

g ggo

6,690

6 400

5,830

5,830

5,560

5,560

5

QQA

5,290

5,030

4,760

4

K1ft

4,260

4,010

4,010

3,770

4,260

5,030

8,860

8,860

10,100

9,500

8,860

7,290

6,400

5,030

4,510

June.

4,260

4,260

4,010

3,770

3,770

3 77n

3.540

3,770

3,540

3,320

3,320

3,320

3,110

2,910

2,720

2,720

2,720

2,530

2,530

2,910

3,770

4,260

4,260

3,770

3,540

3,320

3,110

3,770

4,260

4,760

July.

4,380

4,130

3,890

3,890

3,660

3,430

3,430

3,430

3,660

3,890

4,130

4,640

5,700

5,160

6,250

5,970

8,380

9,340

12,400

9,980

7,140

6,540

6,840

7,750

8,700

9,980

9,020

7,750

4,380

5,700

5,970

Aug.

5,970

7,750

11,000

14,500

14,900

10,600

9,980

7,440

4,380

5,700

6,540

6,250

5,700

5,420

5,700

5,970

5,970

5,970

6,250

8,060

4,380

6,250

5,700

5,160

4,640

4,380

4,130

2,440

2,260

2,260

2,260

Sept.

2,260

2,260

2,260

2,260

2,260

2,620

2,620

2,620

2,260

2,260

2,260

2,260

2,260

2,260

2,260

2,260

2,260

2,260

2,260

2,260

2,260

2,260

2,260

2,260

2,260

2,260

2,260

2,260

2,260

2,260

Oct.

2,260

2,260

2,260

2,260

2,260

9 9fifl

2,260

2,260

2,260

2,260

2,260

7,140

7,140

4,130

2,810

2,810

2,810

4,900

13,100

14,900

11,000

5,160

3,430

3,010

2,620

2,620

2,620

2,260

2,260

2,260

Nov.

2,260

2,260

2,260

2,260

2,260

2,260

2,260

2,440

8,380

12,000

15,300

12,000

9,340

7,750

7 140

7,140

6,540

5,970

5,970

5,970

5,700

5,420

5,420

4,380

4,380

4,380

4,380

4,380

3,890

3,890

Dec.

3,430

3,430

3,430

3,430

3,430

3,430

3,430

3,430

3,220

3,010

3,010

3,010

3,430

3,430

3,660

3,660

3,890

4,130

6,540

11,700

15,600

17,500

21,400

24,800

26,900

28,100

32,400

36,600

37,500

34,900

34,100

NOTE. Dafly discharge computed from a well-defined rating curve.
EASTERN GULF OF MEXICO BASINS. 63

Monthly discharge of Coosa River at Riverside, Ala., for 1911. 

[Drainage area, 7,060 square miles.]

Month.

April....................................

May........ .... . ....................

July.....................................

October. ................................

Discharge in second-feet.

Maximum.

43,400 

21,800 

13,800 

53,200 

10,100 

4,760 

12,400 

14,900 

2,620 

14,900 

15,300 

37,500

53,200

Minimum .

4,380 

4,380 

4,640 

6,110 

3,770 

2,530 

3,430 

2,260 

2,260 

2,260 

2,260 

3,010

2,260

Mean.

13,300 

11,000 

7,220 

24,300 

6,200 

3,520 

6,110 

6,380 

2,300 

4,010 

5,600 

12,600

8,530

Per 

square 

mile.

1.88 

1.56 

1.02 

3.44 

.878 

.499 

.865 

.904 

.326 

.568 

.793 

1.78

1.21

Run-off 

(depth in 

inches on 

drainage 

area).

2.17 

1.62 

1.18 

3.84 

1.01 

.56 

1.00 

1.04 

.36 

.65 

.88 

2.05

16.36

Accuracy.

A. 

A. 

A. 

A. 

A. 

A. 

A. 

A. 

A. 

A. 

A. 

A.

ALABAMA RIVER AT SELMA, ALA.

Location. At the highway bridge in Selma, Ala.

Records available. January 1, 1899, to December 31, 1911. The station was originally established by the United States Army Engineer Corps, but in 1890 gageheight records were begun by the United States Weather Bureau. Although it is 

not thought that the discharge rating can be accurately applied farther back than 

1899, flow estimates based on earlier gage heights will probably be of some value.

Drainage area. 15,400 square miles.

Gage. Standard chain gage was installed by the United States Geological Survey 

March 22, 1906, on the downstream side of the highway bridge. The United 

States Weather Bureau gage formerly used was in two sections the low-water 

portion, reading from 3 to +5.1 feet, being fastened to the lower side of the 

cofferdam on the second pier, and the upper portion, reading from 5.1 to 55 feet, 

being fastened to the draw pier. All gages have had the same datum, but the 

bad condition of a short low-water section caused some error in the low-water 

readings prior to 1906, especially those of the year 1904.

Channel. In soft limestone, deep with swift current and is difficult to sound even at 

ordinary stages. Both banks are high, but the left is subject to overflow at 

extreme high water.

Discharge measurements. Made from the highway bridge to which the gage is 

attached.

Accuracy. Conditions of flow are somewhat changeable, but a fairly good rating has 

been developed for recent years.

Cooperation. Gage heights are famished by the United States Weather Bureau.

The following discharge measurement was made by K. E. Robertson: 

August 16, 1911: Gage height, 3.10 feet; discharge, 11,100 second-feet.

1520° WSP 302 13 5
64 SUBFACE WATEE SUPPLY, 1911, PAST H.

Daily gage height, infect, of Alabama River at Selma, Ala., for 1911.

Day.

1...............

2...............

3...............

4...............

5...............

6...............

7...............

8...............

9...............

10...............

11...............

12...............

13...............

14...............

15...............

16...............

17...............

18...............

19...............

»)... ............

21...............

22...............

23...............

24...............

25...............

26...............

27...............

28...............

29...............

30...............

31...............

Jan.

2.6

4.8

10.2

20.4

26.2

28.8

29.5

28.0

25.0

21.3

17 t\

13.4

9.8

7.7

6.5

5.9

5.4

5.0

4.5

4.3

4.0

3.9

3.7

3.5

3.5

3.4

3.3

3.0

2.9

2.9

2.8

Feb.

2.8

2.9

2.9

2.7

2.7

2.8

2.8

3.3

4.5

5.9

8.5

11.7

14.0

16.4

17.1

16.2

14.6

12.4

10.4

7.5

9.7

10.8

10.7

9.6

8.8

8.4

7.5

6.7

Mar.

6.0

5.4

5.0

5.0

5.2

5.3

5.3

5.0

4.7

4.5

i n

1 Q

4.0

3.8

3.6

3.4

3.0

2.8

2.7

2.7

3.0

3.5

3.5 3.5

3.4

4.0

4.0

4 Q

7 Q

8.2

8.0

Apr.

7.7

6.9

6.0

5.0

A fi

6.4

14.1

18.4

20.0

21.4

23.9

26.4

28.0

28.1

27.3

25.7

23.7

20.7

16.3

13.7

12.6

12.4

n

o

11.7

11.0

9.9

8.6

8.1

9.0

10.2

May.

9 6

10.4

11.9

12.4

11.3

9.3

7.2

5.8

5.0

4.5

4 1

3.8

3.6

3.3

3.1

2.8

2.6

2 A

2.3

2.2

2.2

2.4

3.0

4.8

8.0

8.5

7.6

6.2

5.3

4.5

3.7

June.

O Q

2 2

1.8

1.6

1.5

1.3

1.1

1

0

1 Q

1.8

1.5

1.3

1.2

.6

.4

.2

.2

.4

.3

.6

1.5

2.2

2.1

2.5

2.4

2.4

2.1

2.4

2.3

July.

2

K

1.8

1.5

1.7

1.2

.7

.3

.6

1.2

1.3

.8

1.3

2.6

9 Q

3.8

4.6

4.8

5.8

7.3

8.9

8.9

8.6

7.2

6.4

6.4

5.3

4.3

4.6

4.7

3.9

2.8

Aug.

2.2

1.8

2.2

4.5

8.1

8.8

9.0

7.4

5.5

4.4

3.2

2.3

1.6

2.1

2.5

3.0

3.2

2.6

2.5

3.2

3.5

2.9

2.5

2.2

1.6

1.1

.8

.4

.1

- .1

__ Q

Sept.

-0.5

- .5

- .6

- .7

- .6

- .4

.3

1.4

2.1

1.8

1.3

.7

.2

.2

- .1

- .3

- .5

- .3

- .8

- .7

- .5

- .4

- .8

- .6

_ Q

- .8

Q

- .6

- .7

Oct.

-0.9

-1.1

-1.2

-1.3

-1.2

-1.1

-1.2

-1.3

-1.5

-1.3

-1.2

-1.0

- .9

-1.0

-1.2

-1.1

1.7 i >;

.8

.4

- .1

2.8

5.5

4.9

3.3

1.8

.9

.1

.1

.0

Nov.

-0.3

- .4

- .5

- .6

- .7

- .7

- .6

- .4

.5

1.3

6.2

8.5

8.5

8.0

7.0

5.5

4.3

3.7

3.5

3.4

3.2

3.1

3.1

3.0

2.9

2.3

1.9

1.4

1.7

2.5

Dec.

2.9

3.0

2.9

2.6

2.2

1.9

1.6

1.4

1.2

.9

.7

.6

./>

.6

.5

.7

.9

1.1

1.4

2.0

3.9

8.1

13.1

17.6

20.9

21.4

21.0

21.3

22.1

22.1

22.1

Daily discharge, in second-feet, of Alabama River at Selma, Ala., for 1911.

Day.

1...............

2...............

3...............

4...............

5...............

6...............

7...............

8...............

9...............

10...............

11...............

12...............

13...............

14...............

15...............

16...............

17...............

18...............

19...............

20...............

21...............

22...............

23...............

24...............

25...............

26...............

27...............

28...............

29............... 

30............... 

31...............

Jan.

10,700

15,000

26,800

52,900

68,600

75,800

77,800

73,600

65,300

55,300

34,400

21,100

18,600

17,300

16,200

15,400

14,400

14,000

13,400

13,200

12,800

12,400

12 400

12,300

12,100

11,500

11,300 

11,300 

11,100

Feb.

11,100

11,300

11,300

10,900

10,900

11,100

11,100

12,100

14 400

17,300

22,900

30,300

36,000

42,200

44,100

41,700

37,600

27,200

20,700

25,600

28,100

27,900

25,400

oo ftflfi

22,700

20,700

IQ finft

Mar.

17,500

16,200

15,400

15 400

15,800

16,000

16,000

15,400

14,800

14,400

13,400

13,200

13,400

12,300

11,100

in Qflfl

11,500

12,400

12 400

12,400

12,300

13,400

13,400

15,200

21,600 

22,200 

21,800

Apr.

21,100

10 4/Vt

17,500

15 400

14,600

18,300

36,300

d7 *UTft

51,800

55,600

62,300

69,100

73,600 70 onn

67,200

53,700

42,000

qe OAA

32,400

09 Ann

°.n fiftA

30,300

28,600

26,100

23,100

99 ftftfi

24,000 

26,800

May.

25,400

27,200

30,800

32,000

29,300

24 700

20,000

17, 100

15 400

14 4/vi

13,600

13,000

19 RAH

12,100

11,700

11,100

10 400

10,200

9,980

9

QQA

10 400

11,500

15,000

91 Sftfl

22,900

on Q/VI

17 900

16,000 

14,400 

12,800

June.

11,100

9 Q8fl

9,240

8,880

8,700

8,340

7,980

8 340

9,420

9,240

8,700

8,340

8,160

7,630

7,120

6,780

6 440

6,780

6,610

7,120

8,700

9,980

9,790

10 600

10,400

10 400

9 7Qft

10,400 

10,200

July.

in fiftfi

9 9^A

8,700

9,060

8,160

7,290

6,610

7,120

8,160

8,340

7 460

8,340

10,700

11 300

13,000

14,600

15,000

17,100

20,300

00 Qf\f\

23,800

23,100

20,000

18,300

18,300

16,000

14 000

14,600

14,800 

13,200 

11,100

Aug.

9,980

9,240

9,980

14,400

22,000

23,600

24,000

20,500

16,400

14,200

11,900

10,200

8,880

9,790

10,600

11,500

11,900

10,700

10,600

11 900

12,400

11,300

10,600

9,980

8,880

7,980

7 460

6*780

6,270 

5,940 

5,620

Sept.

5,300

5,300

5,140

4,980

5,140

5,460

6,610

8,520

9,790

9,240

8,340

7,290

6 440

6 440

5^940

5,620

5,300

5,620

4,820

4 980

5,300

5,300

5,460

4,820

5 i/tn

4,660

4,820

4,820

5,140 

4,980

Oct.

4,660

4,350

4,200

4,050

4,200

4,350

4,200

4,050

3,750

4,050

4,200

4,500

4,660

4,500

4,200

4,350

9,060

8,700

7,460

6,780

5,940

11,100

16,400

15,200

12,100

9,240

7,630

6

7OA

6,270 

6,270 

6,100

Nov.

5,620

5,460

5,300

5,140

4,980

4,980

5,140

5,460

6 QV>

8,340

17,900

22,900

99 QftH

21,800

19,600

Ifi A(Vt

14,000

19 Rfin

12,400

19 Qflfi

11,900

11 700

11,700

11,500

n

onn

10,200

9,420

8,520

9,060 

10,600

Dec.

11,300

11,500

11,300

10,700

9,980

9,420

8,880

8,520

8,160

7,630

7,290

7,120

6,950

7,120

6,950

7,290

7,630

7 QRfl

8,520

9

cnn

13,200

22,000

33,700

45,400

54,200

55,600

54,500

55,300

57,500 

57,500 

57,500

NOTE. Daily discharge computed from a well-defined rating curve.
EASTERN GULF OF MEXICO BASINS. 65

Monthly discharge of Alabama River at Selma, Ala,, for 1911. 

[Drainage area, 15,400 square miles.]

Month.

January. ...............................

May..

July....................................

Discharge in second-feet.

Maximum.

77,800 

44,100 

22,200 

73,900 

32,000 

11,100 

23,800 

24,000 

9,790 

16,400 

22,900 

57,500

77,800

MiniTtiiiTn .

10,700 

10,900 

10,900 

14,600 

9,980 

6,440 

6,610 

5,620 

4,660 

3,750 

4,980 

6,950

3,750

Mean.

28,300 

23,200 

14,400 

39,500 

16,900 

8,720 

13,300 

11,800 

5,890 

6,560 

11,200 

21,900

16,800

Per

square 

mite.

1.84 

1.51 

.935 

2.56 

1.10 

.566 

.864 

.766 

.382 

.426 

.727 

1.42

1.09

Run-off 

(depth in 

inches on 

drainage 

area).

2.12 

1.57 

1.08 

2.86 

1.27 

.63 

1.00 

.88 

.43 

.49 

.81 

1.64

14.78

Accuracy.

A. 

A. 

A. 

A. 

A. 

B. 

A. 

A. 

B. 

B. 

A. 

A.

ETOWAH KIVER NEAR BALL GROUND^ GA.

Location. At the iron wagon bridge about 3 miles southeast of Ball Ground, Ga., 

and one-fourth mile below the mouth of Longswamp Creek.

Records available. May 16*, 1907, to December 31,1911.

Drainage area. 466 square miles.

Gage. A standard chain gage, attached to the upstream side of the bridge, was 

installed August 18, 1908, replacing the vertical-staff gage, located 75 feet below 

the bridge. The chain gage was set to read with the vertical staff at low stage, 

and will differ only very slightly at other stages.

Channel. The left bank does not overflow, but the right bank overflows about 500 

feet beyond the end of the bridge approach at high stages. The current is 

somewhat broken and is disturbed by rough, rocky bed and curved channel above.

Discharge measurements. Made from the upstream side of the wagon bridge.

Artificial control. The operation of a number of mills above may cause slight variations in flow, and on this account the gage is read twice a day.

Accuracy. The rating is somewhat affected by shifting of the stream bed some 

distance below the station.

Cooperation. Gage observer is paid by the Northern Contracting Co.

Discharge measurements ofEtowah River near Ball Ground, Ga., in 1911.

Date.

Mar. 29

Oct. 7

7

Hydrographer.

M.R.Hall. .............................................................

R. E. Robertson. . .......................................................

.....do...................................................................

4B.

Feet. 

3.48

1.85 1 QA

Discharge.

Sec.-ft. 

851

235

258
66 SURFACE WATER SUPPLY, 1911, PART H.

Daily gage height, in feet, ofEtowah River near Ball Ground, Ga.,for 1911. 

[R. O. Ellis, observer.|

Day.

1...............

2...............

3...............

4...............

5...............

6...............

7...............

8...............

g

10...............

11...............

12...............

13...............

14...............

15...............

16...............

17...............

18...............

19...............

20...............

21...............

22...............

23...............

24...............

25...............

26...............

27...............

28...............

29...............

30...............

31...............

Jan.

2.8

6.6

9.6

6.6

4.3

3.7

3.5

3.4

3.25

3.0

2.95

2.9

2.85

2.8

2.8

2.7

2.7

3.0

2.9

2.7

2.7

2.6

2.55

2.6

2.7

2.6

2.6

2.7

2.55

2.5

Feb.

2.6

2.55

2.5

2.8

2.7

2.65

2.7

2.85

3.1

3.2

3.0

C.45

3.25

3.1

3.0

2.0

2.95

0 n

4.3

3.65

3.2

3.0

3.0

2.9

2 O

3.0

9 O

.......

Mar.

3.0

3.15

2.9

2.8

2.7

2.7

2.8

2.9

2.8

2.7

2.7

2.65

2.7

2.7

2.65

2.6

2.6

2.6

3.25

3.9

3.25

o AC

2 Q

2.8

2.75

3.8

4.8

q 7

3.5

3.3

3.1

Apr.

3.05

3.0

2.9

3.4

12.4

8.8

5.2

8.7

8.1

5T6

5.0

6.0

5.3

5.1

4.85

4.6

4.3

4.1

4.3

4.7

4.1

3 OK

3.8

3.7

3.7

3.6

3.6

3

7K

4.0

3.8

May.

3.7

3.8

3.55

3.5

3.5

3.4

3.4

3.3

3.3

3.25

3.2

3.2

3.15

3.1

3.1

3.1

3.0

3.0

3.05

3.1

3.55

3

0

3.8

3.5

3.2

3.0

2.95

3.15

3.8

3.4

3.1

June.

2.95

2.8

2.75

2.75

2.7

2.7

2.7

2.6

2.6

2.6

2.6

2.5

2.4

2.4

2.4

2.4

2.5

2.8

3.05

2.8

2.7

2.8

2.55

2.4

2.4

2.4

2.7

2.5

2.4

2.4

July.

2.4

2.3

2.4

2.3

3.5

2.5

2.4

2.6

4.0

3.3

3.1

2.8

3.1

2.9

3.4

3.5

3.6

2.7

2.5

2.4

2.5

2 HH

2.4

2.55

3.2

2.5

2.4

2.3

2.3

2.28

2.55

Aug.

3.0

3.3

3.8

3.8

3.4

2.7

2.7

2.7

2.5

2.4

2.3

2.3

2.25

2.35

2.4

2.3

2.3

2.3

2.95

2.5

2.3

2.2

2 1

2.1

2.1

2.1

3.1

2.5

2.2

2.35

2.5

Sept.

2.3

2.2

2.1

2.2

2.3

3.0

2.6

2.2

2.15

2.1

2.3

2.2

2.15

2.1

2.05

2.0

1.9

2.0

2.1

2.0

2.2

2.35

2.2

2.05

2.0

2.15

2.1

2.0

1.9

1.85

Oct.

1.9

1.8

1.9

1.95

1.85

1.8

1.78

1.95

3.2

10.2

5.0

3.0

2.6

2.4

2.4

2.3

6.0

5.2

3.2

2.9

2.7

3.1

2.7

2.55

2.45

2.4

2.45

2.4

2.4

2.4

2.3

Nov.

2.5

2.3

2.28

2.35

2.3

3.9

4.6

4.2

7.5

4.5

3.5

3.4

3.3

3.1

2.9

2.8

2.7

3.7

3.2

2.9

2.8

2.75

2.7

2.9

2.8

2.7

2.7

2.95

3.0

2.9

Dec.

2.8

2.75

2.7

2.6

2.7

2.6

2.6

2.55

2.55

2.5

2.5

2.48

2.5

2.45

2.6

3.2

3.0

2.75

2.7

2.9

3.3

5.6

7.3

5.0

4.2

4.1

5.4

4.6

4.0

3.7

5.5

Daily discharge, in second-feet, ofEtowah River near Ball Ground, Ga.,for 1911.

Day.

1...............

2.. .............

3...............

4...............

6...............

7...............

8...............

9...............

10...............

11...............

12...............

13...............

14...............

15...............

16. ..............

17...............

18...............

19...............

20...............

21...............

22...............

23...............

24...............

25...............

26...............

27...............

28...............

29...............

30

31...............

Jan.

520

2,820

5,320

2,020

1,250

930

830

780

712

600

580

560

540

520

520

4sn

480

600

 560

480

480

520

44H

428

445

480

445

445

480

428

410

Feb.

445

428

410

520

480

462

480

KAf\

645

690

600

805

719

622

645

600

560

580

nfifi

1,250

905

Aon

600

600

nfifi

560

600

560

Mar.

600

668

KfiA

eon

480

4ftft

520

ERA

520

480

480

462

480

480

462

AAK

445

445

719

1,030

712

580

sfin

520

500

980

1,550

930

830

735

645

Apr.

622

600

Kfin

7sn

7 980

4,610

1,810

4,520

4,020

2,090

1,680

2,370

i OCA

1 740

1^580

1

JQA

1,250

1 140

I

ocn

1 490

1 140

I'ftfin

osn

QQft

930

880

880

955

1 080

980

May.

930

QCfl

855

830

QOA

780

780

*7QK

735

719

690

AQH

Rfift

645

645

600

600

A99

645

855

735

980

830

AQA

600

580

668

OSfi

7Qrt

645

June.

580 KOA

500

CAA

480

48f<

48ft

445

44K

441

445

410

OQA

380

380

OQA

410

520

COO

con

480

fi°T»

JOQ

380

380

380

480

410

OQA

OQA

July.

380

350

380

350 OOA

410

380

445

1,080

735

645

520

645

CAA

780

830

880

4Rn

410

380

410

JOQ

OQA

428

Ann

410

OQA

QCA

OCA

OJK

49ft

Aug.

600

735

980

980

780

480

480

480

410

380

OCA

350

338

OfiK

QSfi

OKA

OKA

°.p;n

580

410

qcn

qoK

300

OAft

OAfl

300

645

410

325

365

410

Sept.

350

325

325

350

600

445

325

312

qcn

325

010

300

288

275

9H

275

OAA

275

325

365

325

OQQ

O7K

01 O

OAA

255

94H

Oct.

255

235

255

265

94H

235

231

265

5,870

1 680

Ann

445

380

380

OCA

2

O7A

1,810

690 efin

480

645

480

428

395

OQA

OAK

OQA

OQA

QQA

350

Nov.

410

345

365

OKA

1,030

1,430

1,200

3,530

1,370

830

780

735

645

C«A

520

430

930 Aon

CCA

520

enrt

480

560

520

480

480

eoA

600 ttfn

Dec.

520

CAA

4Rn

44K

480

AAK

44.fi

4«X>

4OQ

410

410

404

410

OAK

dAR

fiQft

600

600

4fcft

KfiA

735

2

AAA

3

O»7A

1,680

1,200

1 140

1*950

1,430

1,080

930

2,020

NOTE. Daily discharge computed from a well-defined rating curve.
EASTERN GULP OP MEXICO BASINS. 67

Monthly discharge ofEtowah River near Ball Ground, Ga.,for 1911. 

[Drainage area, 466 square miles.]

Month.

March.... ...............................

May. ...................................

July....................................

Discharge In second-feet.

Maximum.

5,320 

1,250 

1,550 

7,980 

980 

622 

1,080 

980 

600 

5,870 

3,530 

3,370

7,980

Minimum.

410 

410 

445 

560 

580 

380 

345 

300 

245 

231 

345 

395

231

Mean.

868 

611 

625 

1,770 

741 

451 

518 

457 

318 

726 

746 

874

726

Per 

square 

mile.

1.86 

1.31 

1.34 

3.80 

1.59 

.968 

1.11 

.981 

.682 

1.56 

1.60 

1.88

1.56

Run-off 

(depth in 

inches on 

drainage 

area).

2.14 

1.36 

1.54 

4.24 

1.83 

1.08 

1.28 

1.13 

.76 

1.80 

1.78 

2.17

21.11

Accuracy.

B. 

B. 

B. 

A. 

A. 

B. 

B. 

B. 

B. 

B. 

B. 

B.

ETOWAH RIVER NEAR ROME, GA.

Location. At Freemans Ferry, 5 miles above Rome, Ga., where Etowah and

Oostanaula rivers unite to form Coosa River; 1 mile below mouth of Dikes Creek. 

Records available. August 17, 1904, to December 31, 1911. 

Drainage area. 1,800 square miles. 

Gage. Vertical gage in three sections, on left bank 250 feet below the ferry; datum

unchanged.

Channel. Both banks are subject to overflow during high water. 

Discharge measurements. Made from the ferry boat or from a small boat held in

place by the ferry cable. No measurements can be made at high stages. 

Artificial control. The operation of the few milldams above will seldom affect the

flow, but to provide for possible daily fluctuations the gage is read twice a day. 

Accuracy. Conditions of flow are probably permanent, and an excellent rating has

been developed for low and medium stages. 

Cooperation. Gage observer is paid by the Northern Contracting Co.

The following discharge measurement was made by R. E. Robertson: 

September 2,1911: Gage height, 1.75 feet; discharge, 913 second-feet.
68 SUBFACE WATEB SUPPLY, 1911, PAST H.

Daily gage height, in feet, ofEtowah River near Rome, Ga.,for 1911. 

[R. M. Pattfllo, observer.]

Day.

1. ..............

2...............

3...............

4...............

5...............

6...............

7...............

8...............

9...............

10...............

11...............

12...............

13...............

14...............

15...............

16...............

17...............

18...............

19...............

20...............

21...............

22...............

23...............

24...............

25...............

26...............

27...............

28...............

29...............

30...............

S1

Jan.

2.2

2.5

9.7

11.5

7.0

3.05

2.85

2.75

2.6

2.6

2.5

2.4

2.4

2.3

2.3

2.3

2.25

2.3

2.25

2.2

2.2

2.2

2.15

2.15

2.2

2.2

2.2

2.15

2.15

2 1

Feb.

2.1

2.1

2.1

2 2

2 25

2.2

2.2

2.3

2.45

2.8

3.2

3.35

3.35

3.05

2.85

2.75

2.55

2.45

2.4

2.4

4.2

4.2

3.8

2.85

2.5

2.45

2.4

2.4

Mar.

2.5

2.55

2.5

2 4

2.35

2.3

2.3

2.35

2 3

2.3

2.25

2.2

2 2

2.2

2.15

2.1

2.1

2.05

2 1

3.25

3.1

2 7

2.5

2.4

2.4

2.4

3.85

3.65

3.0

2 7

2.6

Apr.

2.5

2.45

2.4

3.3

7.0

13.0

7.7

9.1

16.8

11.0

6.4

5.6

5.0

4.4

4.0

3.8

3.55

3.4

3.3

3.6

3.6

3.2

3.1

3.0

2.9

2.8

2.8

2.85

3.0

3.0

May.

2.9

2.%

2.8

2.7

2.7

2.6

2.6

2.55

2.55

2.5

2.5

2.45

2.4

2.4

2.35

2.3

2.3

2.25

2.25

2.25

2.45

2.9

2.95

2.8

2.65

"2.45

2.3

2.25

2.25

2 3

2.4

June.

2 4

2.3

2.2

2 1

2.05

2.0

2.0

2.0

1.95

1.92

1.9

1.85

1.85

1.82

1.8

1.8

2.1

2.4

2.4

2.5

2.3

2.05

2.0

1.95

1.92

1.9

1.9

2.3

2.1

2.05

July.

2.0

2.0

1.9

1.9

1.85

2.05

2.0

2.15

2.9

3.4

2.7

2 25

2.2

2.5

3.4

5.5

6.0

4.5

2.8

2.45

2.35

2.15

2.1

2.15

2.2

2.2

2.2

2.05

1.9

1.8

2.45

Aug.

3.2

3.9

3.3

5.0

3.5

2.6

2.25

2.3

2.35

2.15

1.9

1.8

1.7

1.9

2.0

1.9

1.8

1.8

1.85

2.1

2.15

2.1

2.0

1.85

1.7

1.6

1.6

1.6

1.75

1.7

1.7

Sept.

1.75

1.75

2.1

2.5

2.15

2.0

1.95

1.9

1.8

1.7

1.6

1.8

1.85

1.8

1.7

1.6

1.6

1.6

1.55

1.5

1.6

1.85

1.85

1.55

1.5

1.4

1.4

1.4

1.48

1.45

Oct.

1.42

1.4

1.4

1.4

1.42

1.48

1.45

1.6

2.15

2.35

7.4

4.2

2.8

2.0

1.9

1.9

5.6

5.5

3.6

2.35

2.15

2.1

2.05

2.0

2.0

1.95

1.9

1.85

1.8

1.8

1.75

Nov.

1.75

1.8

1.8

1.75

2.0

3.2

3.8

3.8

7.2

5.8

3.3

2.7

2.6

2.5

2.4

2.35

2.3

2.8

3.1

2.7

2.6

2.5

2 4

2.3

2.2

2.15

2.1

2.05

2.0

2.05

Dec.

2 2

2.1

2.05

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

1.9

1.9

2.0

1.95

2.3

2.2

2.05

2.1

2.3

2.6

7.0

5.2

4.3

3.8

4.6

4.0

3.2

3.6

Daily discharge, in second-feet, ofEtowah River near Rome, Ga.,for 1911.

Day.

1.. .............

2...............

3...............

4...............

5...............

6...............

7...............

8...............

9...............

10...............

11...............

12...............

13...............

14...............

15...............

16...............

17...............

18...............

19...............

20...............

21...............

22...............

23...............

24...............

25...............

26...............

27...............

28...............

29...............

30............... 

31...............

Jan.

1,300

1,660

14,300

17,500

9,400

3,300

2,420

2,120

1,990

1,790

1,790

1,660

1,540

1,540

1,420

1,420

1,420

1,360

1,420

1,360

1,300

1,300

1,300

1,250

1,250

1,300

1,300

1,300

1,250

1,250 

1,200

Feb.

1,200

1,200

1,200

1,300

1,360

1,300

1,300

1,420

1,600

2,060

2,640

2,880

2,880

2,420

2,120

1,990

1,730

1,600

1,540

1,540

4,360

4,360

3,640

2,120

1,660

1,600

1,540

1,540

Mar.

1,660

1,730

1,660

1,540

1,460

1,420

1,420

1,480

1,420

1,420

1,360

1,300

1,300

1,300

1,250

1,200

1,200

1,140

1,200

2,720

2,490

1,920

1 660

1 >uin

1,540

1 *M\

3,730

3,380

2,340

1,920 

1,790

Apr.

1,660

1,600

1,540

2,800

9,400

20,200

10,700

13,200

27,000

16,600

8,320

6,880

5,800

4,720

4,000

3,640

3,220

2,960

2,800

3,300

3,300

2,640

2 ion

2,340

2,200

2,060

2,060

2,130

2,340

2,340

May.

2,200

2,130

2,060

1,920

1,920

1,790

1,790

1,730

1,730

1,660

1,660

1,600

1,540

1,540

1,480

1,420

1,420

1,360

1,360

1,360

1,600

2,200

2,270

2,060

1,860

1,600

1,420

1,360

1,360

1,420 

1,540

June.

1,540

1,420

1,300

1,200

1,140

1,090

1,090

1,090

1,040

1,010

990

942

942

914

895

895

1,200

1,540

1,540

1 fifift

1,420

1,140

1,090

1,040

1,010

990

990

1,420

1,200

1,140

July.

1,090

1,090

990

990

942

1,140

1,090

1,250

2,200

2,960

1,920

1,360

1,300

1,660

2,960

6,700

7,600

4,900

2,060

1,600

1,480

1,250

1,200

1,250

1,300

1,300

1,300

1,140

990

895 

1,600

Aug.

2,640

3,820

2,800

5,800

3,130

1,790

1,360

1,420

1,480

1,250

990

895

800

990

1,090

990

895

895

942

1,200

1,250

1,200

1,090

942

800

no

710

no

848

800 

800

Sept.

848

848

1,200

1,660

1,250

1,090

1,040

990

895

800

no

895

942

895

800

710

no

no

668

625

no

942

942

668

625

545

545

545

609

585

Oct.

561

545

545

545

561

609

585

no

1,250

1,480

10,100

4,360

2,060

1,090

990

990

6,880

6,700

3,300

1,480

1,250

1,200

1,140

1,090

1,090

1,040

990

942

895

895 

848

Nov.

848

895

895

848

1,090

2,640

3,640

3,640

9,760

7,240

2,800

1,920

1,790

1,660

1,540

1,480

1,420

2,060

2,490

1,920

1,790

1,660

1,540

1,420

1,300

1,250

1,200

1,140

1,090

1,140

Dec.

1,300

1,200

1,140

1,090

1,090

1,090

1,090

1,090

1,090

1,090

1,090

1,090

990

990

1,090

1,040

1,420

1,300

1,140

1,200

1,420

1,790

9,400

6,160

4,540

3,640

5,080

4,000

3,300

2,640 

3,300

NOTE. Dattydischarge computed from a rating curve fairly well defined below 4,000 second-feet. Above 

10,000 second-feet the estimates are only approximate.
EASTERN GULF OF MEXICO BASINS.

llontftfy discharge ofEtowah River near Rome, Ga.,for 1911. 

[Drainage ares, 1,800 square miles.]

Month.

.Tfttiiiftry

February. .............................. March. ......... .. ..

May.. ..................................

June. ...................................

July....................................

The year. .........................

Discharge in second-feet.

Maximum.

17,600 

4,360 

3,730 

27,000 

2,270 

1,660 

7,600 

5,800 

1,660 

10,100 

9,760 

9,400

27,000

Minimum.

1,200 

1 200 

1,140 

1,540 

1,360 

895 

895 

710 

545 

545 

848 

990

545

Mean.

2,730 

2,000 

1,710 

5,810 

1,690 

1,160 

1,920 

1,450 

833 

1,830 

2,140 

2,190

2,120

Per 

square 

mile.

1.52 

1.11 

.950 

3.23 

.939 

.644 

1.07 

.806 

.463 

1.02 

1.19 

1.22

1.18

Run-off 

(depth in 

inches on 

drainage 

area).

1.75 

1.16 

1.10 

3.60 

1.08 

.72 

1.23 

.93 

.52 

1.18 

1.33 

1.41

16.01

Accuracy.

A. 

A. 

A. 

A. 

A. 

A. 

A. 

A. 

A. 

A. 

A. 

A.

AMICALOLA BIVEB NEAR POTTS MOUNTAIN, GA.

Location. At a covered wagon bridge, known as Steeles Bridge, 2 miles east of

Potts Mountain post office, and one-fourth mile above the mouth of Holley Creek;

15 miles from Ball Ground, Ga., which is the nearest railroad station. 

Records available. June 21,1907, to December 31,1908; June 7,1910, to December

31, 1911.

Drainage area. 80 square miles. 

Gage. Vertical staff attached to a tree on the left bank 30 feet below the bridge;

datum unchanged. 

Channel. Rocky and permanent at station, but may shift at a bar of small bowlders

a short distance below. 

Discharge measurements. Made from the wagon bridge or by wading at low

Accuracy. Published data considered good.

Cooperation. Gage observer is paid by the North Georgia Electric Co.

Discharge measurements of Amieahla River near Potts Mountain, Ga., in 1911.

Date.

Mar. 30 Oct. 6

6

6

Hydrographer.

M.R. Hall...............................................................

.....do...................................................................

.....do...................................................................

height.

Feet. 

1.62

1.15

1.15

1.15

Discharge.

Sec.-ft. 

179

56

58

59
70 SURFACE WATER SUPPLY, 1911, PART

Daily gage height, in feet, of Amicalola River near Potts Mountain, Ga., for 1911.

[J. A. Whitmore, observer.]

Day.

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...............

Jan.

1.5

3.1

3.7

1.9

1.8

1.7

1.6

1.55

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.45

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

Feb.

1.4

1.4

1.4

1.4 

1.4

1.5

1.5

1.5

1.55

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

2.0

1.75

1.6

1.5

1.5

1.5

1.5

1.5

1.5

1.5

Mar.

1.5

1.5

1.5

1.5

1.45

1.45

1.45

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.45

1.6

1.5

1.45

1.45

1.4

1.4

2.0

1.8

1.75

1.75

1.7

1.65

Apr.

1.6

1.55

1.55

9.5

3.0

2.8

3.3

3.0

2.5

2.6

2.55

2.5

2.4

2.3

2.25

2.2

2.1

2.05

2.0

1.95

1.95

1.95

1.9

1.85

1.85

1.8

1.8

2.0

1.95

May.

1.9

1 Q

1.9

1 ft

1.75

1.75

1.7

1.7

1.7

1.7

1.7

1.65

1.65

1.6

1.6

1.6

1.6

1.6

1.6

1.9

1.75

1.9

1.8

1.65

1.6

1.6

1.8

2.0

1.8

1.6

June.

1.6

1.6

1.6

1.6

1.55

1.55

1.55

1.5

1.5

1.5

1.45

1.45

1.4

1.4

1.4

1.4

1.4

1.9

1.6

1.5

1.8

1.45

1.4

1.4

1.4

1.4

1.35

1.35

1.35

July.

1.35

1.35

1.3

1.7

1.45

1.3

2.65

1.9

1.6

1.5

1.5

1.45

2.0

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4 '

1.4

1.5

1.4

1.4

1.4

1.4

1.35

1.3

Aug.

1.3

1.6

1.7

2.0

1.5

2.1

2.0

1.5

1.4

1.35

1.3

1.3

1.3

1.3

1.25

1.25

1.7

1.5

1.4

1.3

1.3

1.3

1.25

1.25

1.25

1.7

1.5

1.35

1.3

1.3

Sept.

1.3

1.3

1.3

1.5

1.4

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.25

1.25

1.25

1.25

1.25

1.25

1.35

1.3

1.3

1.25

1.25

1.25

1.25

1.25

1.25

1.25

1.25

Oct.

1.2

1.2

1.2

1.2

1.2

1.2

1.6

1.6

4.0

1.8

1.5

1.4

1.35

1.35

1.35

2.6

1.9

1.6

1.5

1.45

1.45

1.4

1.4

1.4

1.35

1.35

1.35

1.3

1.3

1.3

Nov.

1.3

1.28

1.28

1.3

2.15

1.7

1.5

3.0

1.8

1.7

1.7

1.6

1.5

1.5

1.45

1.45

2.0

1.6

1.5

1.5

1.45

1.45

1.45

1.45

1.45

1.45

1.45

1.45

1.45

Dec.

1.45

1.45

1.45

1.45

1.45

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.38

1.38

1.45

1.4

1.4

1.4

1.45

1.45

3.4

2.5

1.95

1.9

2.0

1.9

3.0

2.0

1.9

1.9

Daily discharge, in second-feet, ofAmicalola River near Potts Mountain, Ga.,for 1910-11.

Day.

1910. 

1........ .......

2...............

3...............

4...............

5...............

6...............

7...............

8...............

9...............

10...............

11...............

12...............

13...............

14...............

15...............

16...............

17...............

18...............

19...............

20...............

21...............

22...............

23...............

24...............

25...............

26...............

27...............

28...............

29...............

30...............

31...............

Jan. Feb. Mar. Apr. May. June.

296 2'8

260

260

260

260

260

260

260

243

2*3

226

210

194

194

194

194

194

194

194

180

180

226

July.

226

296

334

296

710

375

420

334

296

260

243

243

226

210

194

194

194

194

194

194

180

180

165

165

165

165

165

165

152

152

152

Aug.

152

152

138

243

194

735

226

334

260

194

165

152

152

152

226

165

152

152

138

138

138

138

126

126

126

138

138

126

126

138

165

Sept.

165

138

165

210

180

152

138

126

165

126

126

126

126

126

126

113

113

113

113

113

102

102

102

90

90

90

90

on

90

260

Oct.

113

102

102

102

113

113

113

138

138

113

113

102

102

102

102

102

102

102

102

90

90

90

90

90

90

90

90

on

90

90

90

Nov.

'90

90

90

90

90

80

80

80

80

SO

80

80

80

80

80

80

80

SO

SO

SO

SO

80

SO

80

80

80

80

80

80

80

Dec.

80

80

80

80

760

375

334

296

260

210

165

138

102

102

90

90

on

90

90

90

90

90

138

138

113

113

113

113

113

113

113
EASTEBN GULP OF MEXICO BASINS. 71

Daily discharge, in second-feet, ofAmicalola River near Potts Mountain, Ga.,for 1910-11 

Continued.

Day.

1911. 

1.. .............

2...............

3...............

4...............

5...............

6...............

7...............

8...............

9...............

10...............

11...............

12...............

13...............

14...............

15...............

16.:.............

17...............

18...............

19...............

20...............

21...............

22...............

23...............

24...............

25...............

26...............

27...............

28...............

29...............

30...............

31...............

Jan.

138

810

1.140

465

260

226

194

165

152

138

138

138

138

138

138

138

138

138

138

138

138

126

113

113

113

113

113

113

113

113

113

Feb.

113

113

113

113

113

138

138

138

152

138

138

138

138

138

138

138

138

138

296

210

165

138

138

138

138

138

138

138

Mar.

138

138

138

138

138

126

126

126

113

113

113

113

113

113

113

113

113

113

126

165

138

126

126

113

113

296

226

210

210

194

180

Apr.

165

152

152

165

4,550

760

660 aii

760

510

560

535

510

465

420

108

375

334

315

296

278

278

278

260

243

243

226

226

296

278

May.

260

260

260

226

226

210

210

194

194

194

194

194

180

180

165

165

165

165

165

165

260

210

260

226

180

165

165

226

296

226

165

June.

165

165

165

165

165

152

152

152

138

138

138

126

126

113

113

113

113

113

260

165

138

226

126

113

113

113

113

102

102

102

July.

102

102

on

90

194

126

, 90

585

260

165

138

138

126

296

113

113

113

113

113

113

113

113

113

113

138

113

113

113

113

102

90

Aug.

on

165

104

194

296

138

334

296

138

113

102

90

90

90

90

80

80

194

138

113

90

90

90

80

80

80

194

138

102

90

90

Sept.

on

90

90

on

138

113

90

on

on

90

90

90

90

80

80

80

80

80

80

102

90

90

80

80

80

80

80

80

80

80

Oct.

69fid

69

AQ

69

69

an

165

165

1,300

226

138

113

102

102

102

560

260

165

138

126

126

113

113

113

102

102

102

90

90

90

Nov.

on

86

ftA

QA

QA

354

194

760

226

1(U

194

165

138

138

126

126

296

165

138

138

126

126

126

126

126

126

126

126

126

Dec.

126

126

126

1OA

126

126

113

113

108

108

126

113

113

113

126

126

O7n

510

278

260

296

260

760

296

260

260

NOTE. Daily discharge computed from a rating curve fairly well defined below 300 second-feet.

Monthly discharge ofAmicalola River near Potts Mountain, Ga.,for 1910-11. 

[Drainage area, 80 square miles.]

Month.

1910.

July....................................

December ...............................

1911. Jsniwy. .. ,,.... ,.,...,TT - - - -

March . . . . , . , i , , , , ,.,,,., ,

May.. . . ... ......

July.....................................

Discharge in second-feet.

Maximum.

296 

710 

735 

260 

138 

90 

760

1,140 

296 

296 

4,550 

296 

260 

585 

334 

138 

1,300 

760 

970

4,550

Minimum.

180 

152 

126 

90 

90 

80 

80

113 

113 

113 

152 

165 

102 

90 

80 

80 

69 

86 

108

69

Mean.

229 

240 

184 

129 

102 

81.7 

156

205 

143 

143 

520 

205 

140 

142 

134 

88.1 

167 

169 

214

189

Per 

square 

mile.

2.86 

3.00 

2.30 

1.61 

1.28 

1.02 

1.95

2.56 

1.79 

1.79 

6.50 

2.56 

1.75 

1.78 

1.68 

1.10 

2.09 

2.11 

2.68

2.36

Run-off 

(depth in 

inches on 

drainage 

area).

2.55 

3.46 

2.65 

1.80 

1.48 

1.14 

2.25

2.95 

1.86 

2.06 

7.25 *.95

1.95 

2.05 

1.94 

1.23 

2.41 

2.35 

3.09

32.09

Accuracy.

A. 

A. 

A. 

A. 

A. 

A. 

A.

A. 

A. 

A. 

B. 

A. 

A. 

A. 

A. 

A. 

B. 

A. 

A.
72 SURFACE WATER SUPPLY, 1911, PART II.

TALLAPOOSA KlTEB AT STUBDEVANT, ALA.

Location. At the Central of Georgia Railway bridge one-fourth mile west of Sturdevant, Ala., and 5 miles below the mouth of Hillabee Creek. 

Records available. July 19,1900, to December 31,1911. 

Drainage area. 2,460 square miles. "" 

Gage. A vertical staff gage on the right bank of the river about 2,000 feet above the

bridge. The original gage was a staff in two sections attached to the pier of the

railroad bridge. A standard chain gage, installed July 10, 1905, was read until

the summer of 1906, when the present gage was installed. The readings of the

new staff gage are all corrected to agree with the readings of the standard chain

gage referred to its original datum at the railroad bridge. 

Channel. Rocky and permanent; one side deep and sluggish at low stage. Both

banks overflow for about 200 feet at extreme high stages. 

Discharge measurements. Made from a plank walk resting on the lower members

of the deck railroad bridge. Some low-water measurements made from boat. 

Artificial control. The flow is under no artificial control except at a number of

small mills a great distance upstream. 

Accuracy. A good rating has been developed and excellent results secured at this

station. 

Cooperation. The gage observer is paid by the Alabama Geological Survey.

The following discharge measurement was made by M. R. Hall: 

February 20, 1911: Gage height, 4.22 feet; discharge, 5,090 second-feet.

Daily gage height, in feet, of Tallapoosa River at Sturdevant, Ala., for 1911. 

[C. J. Stowe, observer.]

Day.

1...... .........

2...............

3...............

4...............

5...............

6...............

7...............

8...............

9...............

10...............

11...............

12...............

13...............

14...............

15...............

16...............

17...............

18...............

19...............

20...............

21...............

22...............

23...............

24...............

25...............

26...............

27...............

28...............

29...............

30...............

31...............

Jan.

2.8

5.0

12.3

11.0

7.6

5.6

4.3

3.6

3.3

3.15

2.9

2.8

2.7

2.6

2.5

2.4

2.4

2.35

2.35

2.35

2.25

2.25

2.25

2.2

2.15

2.05

2.15

2.15

2.15

2.25

2.25

Feb.

2.15

2.05

2.05

2.15

2.35

2.25

3.2

3.55

4.0

5.2

4.9

5,8

5.6

4.5

3.95

3.6

3.45

3.2

3.0

3.95

4.2

3.9

3.4

3.1

2.9

2.8

2.7

2.6

Mar.

2.6

2.6

2.7

2

C

2.5

2.4

2.4

2.35

2.35

2.35

2.4

2.35

2.3

2.25

2.15

2.15

2.05

2.05

2.25

3.0

3.15

2.85

2.6

2.4

2.25

3.1

4.3

4.1

3.45

3.05

2.75

Apr.

2.6

9 4R

2.4

2.65

7.9

8.3

6.3

5.2

6.7

7.5

6.7

5.0

4.5

4.1

3.85

3.5

3.3

3.2

3.25

3.15

3.6

3.25

3 n

2.8

2.7

2.65

2.65

3.35

3.15

2 7

May.

2.85

3.05

2.95

2.8

2.55

2.4

2.4

2.35

2.25

2.15

2.15

2.05

2.05

1 OK

1.9

1 a

1.8

1.9

1.8 i a

3.3

3.5

5.0

5.1

3.4

2.75

2.35

2.15

2.0

1.85

1.8

June.

1.9

1.75

1.6

1.5

^1.55

2.1

2.1

1.8

1.55

1.6

1.55

1.4

1.4

1.3

1.2

1.0

1.0

1.25

1.55

1.65

2.15

2.75

2.75

2.2

1.85

1.65

2.4

2.15

2.05

1.6

July.

1.3

1.15

1.1

1.15

1.65

3.6

2.2

1.6

1.35

1.5

1.85

2.15

2.4

9 O

3.2

5.3

6.9

6.5

6.4

4.5

3.7

3.35

3

C

3.05

3.65

3.5

2.65

2.25

1.95

1.7

1.55

Aug.

1.5

5.8

5.4

5.1

4.5

3.0

2.4

2.05

1.8

1.7

1.6

1.8

1.65

2.45

2.45

1.9

3.45

4.3

3.45

2.8

2.15

1.8

1.6

1.5

1.4

1.25

1.2

1.15

1.35

1.1

1.05

Sept.

1.05

1.1

1.0

1.0

1.8

1.9

2.2

1.9

1.25

1.15

1.0

.9

.81

.70

.62

.56

.54

.54

.56

.75

1.25

1.1

1.5

1.35

1.05

.9

.85

.66

.58

.58

Oct.

0.38

.29

.27

.22

.18

.18

.14

.09

no

.11

.29

.71

1.3

1.0

.88

84

2.3

2.45

3.3

2.45

1.75

1.45

1.1

1.0

.95

.84

.88

.95

1.25

1.1

1.45

Nov.

1.8

1.4

1.35

1.3

1.2

1.4

2.4

3.3

6.5

5.6

4.1

3.2

2.7

2.35

2.1

1 a

1.85

1.85

2.2

2.45

2.3

1 05

1.8

1.7

1.75

1.9

1.8

2.35

2.55

2

O

Dec.

2.15

1.9

1.8

1.7

1.6

1.6

1.65

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.6

2.05

2.15

1 Q5

1.9

2.8

4 7

6.0

6.8

«.»

4.7

4.1

5.2

fi.O

4.1

4.1

6.3
BASTEBN GULF OF MEXICO BASINS. 73 

Daily discharge, m second-feet, of Tallapooset River at Sturdevant, Ala., for 1911.

Day.

1.. .............

2...............

3...............

4...............

5...............

6...............

7... ............

8...............

9...............

10...............

11...............

12...............

13...............

14...............

15 .

16...............

17...............

18...............

19

20...............

21...............

22...............

23...............

24...............

25...............

26......*.........

27...............

28...............

29...............

30...............

31...............

Jan.

2,530

6,760

29,300

25,200

14 300

8,330

5,120

3 77n

3,270

S fYdfl

2,670

2,530

2,400

2,270

2,140

2,020

2,020

1 960

1 960

i'ofin

1 840

l'840

1,840

1 7SS1

1,720

1,620

1,720

1,720

1,720

1,840

1,840

Feb.

1,720

1,620

1,620

1,720

1 QfiO

1 84A

3,110

3,680

4,510

7 98fl

6,500

8,880

S

oon

5,550

4,420

3,770

3,520

3,110

2,810

4,420

d oin

4,320

3 Aaft

9 OAf)

2,670

2,530

2 400

2^270

Mar.

2,270

2,270

2

At\f\

2,270

2

-\Af\

2,020

2,020 i ofin

i ofifi

1 960

2,020

1,960

i onn

1 840

1^720

1,720

1,620

1,620

1 84A

2,810

3

(\AC\

2,600

2,270

2,020

1 840

2 Qfifl

5,120

4,710

3,520

2,880

2,460

Apr.

2,270

2,080

2,020

2,340

15,200

16,500

10,300

7,280

11,400

14,000

11,400

6,760

5,550

4,710

4,220

3,600

3,270

3,118

3

-jjjrt

3 ft4fl

3 77n

3 1 Oft

2,810

2,530

2,400

2,340

2,340

3,350

3,040

2,400

May.

2,600

2,880

2 7-dfl

2,530

2,200

2,020

2,020

1 QAft

1,840

1,720

1,720

1,620

1,620

1,510

1,460

1 Affl

i ifin

1 460

1

OCA

1 4fifl

3 97O

3,600

6,760

7,020

3 A3ft

2,460

1,960

1,720

1,560

1,410

1,360

June.

1 ififi

1,320

1,180

1,100

1 140

1,670

1,670

1,360

1 140

i lan

1,140

1,020

1,020

QSfl

880

750

750

915

1,140

1,220

1,720

2,460

2,460

1,780

1,410

1,220

2,020

1,720

1,620

1,180

July.

QATt

84S

815

848

1,220

3 77ft

i ?an

1,180

985

1,100

1,410

1,720

2,020

2,670

3,110

7 tan

19 nnn

1A OAA

10,600

5,550

3 aso

3,350

3,770

2,880

3,860

3,600

2,340

1,840

1,510

1,270

1,140

Aug.

1,100

8,880

7,800

7,020

5,550

2,810

2,020

1,620

1,360

1,270

1,180

i ifin

1,220

2

AQA

2,080

1 460

3^520

5,120

3,520

2,530

1,720

1,360

1,180

1,100

1,020

915

880

848

985

815

782

Sept.

782

815

750

750

1 360

1 460

1^780

1 *915 460

848

750

AQft

640

580

540

510

509

500

510

608

915

815

1,100

985

782

690

662

560

520

520

Oct.

426

386

378

358

*MQ

348

QOQ

312

312

318

386

586

950

750

679

657

i onn

2 nsn

3,270

2,080

1,320

1,060

815

750

720

657

679

720

915

815

1,060

Nov.

1,360

1,020

985

950

ssn

1,020

2,020

3,270

10,800

8,330

4,710

3,110

2,400

1 960

1^670

1 Af£\

1,410

1,410

1,780

2,080

i onn

1,510

1,360

1,270

1,320

1 460

1^360

1,960

2,200

1,900

Dec.

1,720

1,460

1 360

1*270

1,180

i ifin

1,140

1,100

1,100

1,100

1,100

1,100

1,100

1,100

1,180

1,620

1,720

1,510

1 460

2*, 580

6,010

9 un

11,700

9 1fifl

6,010

4,710

7,280

6,760

4,710

4,710

7,540

NOTE. Dafly discharge computed from a well-defined rating curve.

Monthly discharge of Tallapoosa River at Sturdevant, Ala., for 1911. 

[Drainage area, 2,460 square miles.]

Month.

February ...............................

March..................................

May....................................

July....................................

August .................................

December ...............................

Discharge in second-feet.

Maximum.

29,300 

8,880 

5,120 

16,500 

7,020 

2,460 

12,000 

8,880 

1,780 

3,270 

10,800 

11,700

29,300

Minimum.

1,620 

1,620 

1,620 

2,020 

1,360 

750 

815 

782 

560 

312 

880 

1,100

312

Mean.

4,610

3,780 

2,380 

5,350 

2,330 

1,350 

3,240 

2,420 

810 

850 

2,300 

3,390

2,730

Per 

square 

mite.

1.87 

1.54 

.987 

2.17 

.948 

.549 

1.32 

.984 

.329 

.345 

.935 

1.38

1.11

Run-off 

(depth in 

inches on 

drainage 

area).

2.16 

1.60 

1.11 

2.42 

1.09 

.61 

1.52 

1.13 

.37 

.40 

1.04 

1.59

15.04

Accuracy.

A. 

A. 

A. 

A. 

A. 

A. 

A. 

A. 

A. 

A. 

A. 

A.
74 SURFACE WATEB SUPPLY, 1911, PART II.

TOMBIGBEE RIVER AT COLUMBUS, MISS.

Location. At the county highway bridge at Columbus, Miss., 2 miles above the 

mouth of Luxapalilla Creek and about 6 miles below the mouth of Tibbee River.

Records available. July 13, 1905, to December 31, 1911. Also for 1900 to 1904, 

using the gage heights furnished by the United States Weather Bureau, some of 

which, especially for low stages, were very greatly in error.

Drainage area. 4,440 square miles.

Gage. Chain gage was installed by the United States Geological Survey on July 13, 

1905, at the highway bridge 1,000 feet above the original site of the gage of the 

United States Weather Bureau. The new gage was set to read the same as the 

first United States Weather Bureau gage at low water, which makes it practically 

on the same datum, as the low-water surface is almost level.

Channel. The right bank is high and seldom overflows. The left bank overflows 

only under the bridge approach at a gage height of about 20 feet. The bed of the 

stream is of soft limestone or chalk and conditions of flow are somewhat changeable at low stages.

Discharge measurements. Made from the wagon bridge.

Accuracy. Estimates may be somewhat in error at low stages due to changes at controlling section.

Discharge measurements of Tombigbee River at Columbus, Miss., in 1911.

Date.

Aug. 25

Nov. 11

11

Hydrographer.

.....do....................................................................

.....do....................................................................

Gage 

height.

Feet. 

1.06

-2.42

-2.41

Discharge.

Sec.-ft. 

3,650

980

951

Daily gage height, in feet, of Tombigbee River at Columbus, Miss., for 1911. 

[C. E. Shackelford, observer.]

Day.

1...............

2...............

3...............

4...............

5...............

6...............

7...............

8...............

9...............

10...............

11...............

12...............

13...............

14...............

15...............

16...............

17...............

18...............

19...............

20...............

21...............

22...............

23...............

24...............

25...............

26...............

27...............

28...............

29...............

30...............

31...............

Jan.

0.45

9.8

13.1

13.8

15.6

17.8

17.6

16.1

12.0

6.6

3.65

2.05

1.15

.55

.15

- .15

- .45

- .55

- .65

- .85

-1.05

-1.25

-1.25

-1.25

-1.35

-1.45

_ 1 45

- .75

.35

.25

.05

Feb.

-a 05

- .05

- .45

- .65

- .75

- .65

- .35

.85

2.55

6.6

7.6

9.6

10.7

11.0

10.8

9.6

8.2

6.9

5.3

4.3

i 0

A. 1

3.45

2.25

1 45

.95

95

7.0

Mar.

8.2

9.6

10.8

11.2

9.9

6.9

3.75

2.45

1.75

1.25

.75

.25

.05

- .15

- .25

- .25

- .45

- .65

- .85

- .95

- .45

.25

.25

- .15

- .55

- .65

.05

3.15

46

4.5

3.3

Apr.

2.05

1.15

.35

- .25

11.8

146

16.4

19.5

21.2

21.7

21.1

91 1

21.4

21.0

19.5

17.4

148

13.2

13.7

16.3

152 1

22.5

26.0

*>R 9

94 7

22.2

18.9

16.1

13.6

11.2

May.

10.3

10.2

8.4

6.7

45

2.85

1.95

1.25

.75

.35

- .15

- .45

- .65

- .85

-1.05

-1.25

-1.65

 .1 fifi

-1.75

-1.85

1.75

_ 95

.65

.65

.75

.75

qe

O^

 1 45

-1.75

-2.05

June.

-2.25

-2.45

-2.55

-2.65

-2.75

-2.75

-2.75

-2.85

-2.85

-2.85

-2.95

-3.15

-3.25

-3.25

-3.35

-3.35

-3.45

-3.55

-3.55

-3.25

3.35

-3.35

9 ft*!

-2.05

-1.55

QK

.25

EC

.35

- .15

July.

-0.8

-1.0

-1.7

-2.4

-2.8

-2.9

-2.5

-2.5

-2.8

-2.8

-3.0

-3.0

- .8

.6

2.5

1.4

.0

.2

- .6

- .9

i *>

9 ft

2

0

5.0

5.0

42

o a

2.3

.6

- .6

-1.6

Aug.

-2.0

.2

.1

.1

.3

.0

- .1

- .8

- .6

.1

- .1

- .9

-1.7

-2.2

-2.5

.8

.3

- .5

.2

1.4

9 A

1 52

1 52

1.7

1 O

.5

.5

- .6

- .3

- .3

- .9

Sept.

-1.5

-2.0

-2.4

-2.7

-2.9

-3.0

 3.0

-3.0

-3.1

-2.7

-2.5

-2.4

-2.4

-2.3

-2.4

-2.5

-2.8

-3.0

-3.3

-3.4

-3.5

-3.6

_o 7

-3.7

-3.7

-3.8

q o

q Q

-3.8

-3.9

Oct.

-3.9

-3.9

-3.9

-40

-40

-40

-40

-4.0

-41

-41

-41

-41

-4.0

-3.5

-3.1

-3.2

-3.4

-3.5

-3.1

-2.1

9 A.

9 a

-3.0

-3.3

q A

-3.5

3.6

-3.6

-3.6

-3.6

-3.6

Nov.

-3.6

-3.7

-3.7

-3.7

-3.7

 3.7

-3.7

-3.7

-3.3

-2.9

-2.5

-2.3

-2.4

-2.5

-2.4

-2.2

-2.2

-2.3

-2.4

-2,3

0 1

9 A

9 1*

-2.6

9 7

-2.6

2.4

9 9

-2.0

-L6

Dec.

-1.4

-1.4

-1.7

 2 0

 2.2

 2 4

-2.5

-2.6

-2.7

-2.8

-2.5

Q

46

8.6

12.8

13.8

144

15.4

16.0

16.0

15.2

141

14.4 14. i

 |4> e

143

17.0

10 1

17 Q

17.6

18.4
EASTERN GULP OP MEXICO BASINS. 75 

Daily discharge, in second-feet, of Tombigbee River at Columbus, Miss., for 1911.

Day.

1...............

2...............

3...............

4...............

5...............

6...............

7...............

8...............

9...............

10...............

11...............

12...............

13...............

14...............

15...............

16...............

17...............

18...............

19...............

20...............

21...............

22...............

23...............

24...............

25...............

26...............

27...............

28...............

29...............

30...............

31...............

Jan.

2,980

13,700

18,600

19,700

22,700

26,500

26,200

23,500

16,900

9,520

6,100

4,470

3,620

3,080

2,720

2,450

2,210

2,130

2,050

1,900

1,760

1,620

1,620

1,620

1,560

1,490

1,490

1,980

2,900

2,800

2,620

Feb.

2,540

2,540

2,210

2,050

1,980

2,050

2,290

3,340

4,970

9,520

10,800

13,400

15,000

15,400

15,100

13,400

11,600

9,880

7,960

6,810

6,700

6,590

5,880

4,670

3,900

3,440

3,440

10,000

Mar.

11,600

13,400

15,100

15,700

13,900

9,880

6,200

4,870

4,180

3,710

3,260

2,800

2,620

2,450

2,370

2,370

2,210

2,050

1,900

1,840

2,210

2,800

2,800

2,450

2,130

2,050

2,620

5,570

7,140

7 030

5^720

Apr.

4,470

3,620

2,900

2,370

16,600

21,000

24,000

30,000

34,000

35,200

33,800

33,800

34,500

33,500

30,000

25,800

21,300

18,800

19,600

23,900

27,100

37,200

46,000

46,500

42,800

36,500

28,700

23,500

19,400

15,700

May.

14,400

14,300

11,800

9,640

7,030

5,270

4,370

3,710

3,260

2,900

2,450

2,210

2,050

1,900

1,760

1,620

1,360

1,360

1,290

1,130

1,290

1,840

3,160

3,160

3,260

3,260

2,290

1,840

1,490

1,290

1,100

June.

980

868

812

760

710

710

710

660

660

660

612

522

480

480

440

440

400

362

362

480

440

440

660

1,100

1,420

1 840

2,370

2,130

2,900

2,450

July.

1,940

1,800

1,320

895

685

635

840

840

685

685

590

590

1,940

3,120

4,920

3,850

2,580

2,760

2,090

1,870

1,660

1,130

5,020

7,600

7,600

6,700

6,040

4,720

3,120

2,090

1,390

Aug.

1,130

2,760

2,670

2,670

2,850

2,580

2,500

1,940

2,090

2,670

2,500

1,870

1,320

1,010

840

3,300

2,850

2,170

2,760

3,850

4,420

4,230

4,230

4,140

3,760

3,030

2,170

2,090

2,330

2,330

1,870

Sept.

1,460

1,130

895

735

635

590

590

590

545

735

840

895

895

950

895

840

685

590

460

420

380

345

310

310

310

280

280

280

280

250

Oct.

250

250

250

220

220

220

220

220

195

195

195

195

220

380

545

500

420

380

545

1,070

895

685

590

460

420

380

345

345

345

345

345

Nov.

345

310

310

310

310

310

310

310

460

635

840

950

895

840

895

1,010

1,010

950

895

950

1,0?0

1,130

950

785

735

785

895

1,010

1,130

1,390

Dec.

1,520

1,620

1,320

1,130

1,010

895

840

785

735

685

840

l.S'O

7,140

12,100

18,100

19,700

20,700

22,300

23,400

23,400

22,000

20,200

20,700

20,200

19,300

20,500

25,100

27,100

26,700

26,200

27,700

NOTE. Daily discharge computed from a rating curve well denned below 4,000 second-feet and fairly 

well denned below 32,000 second-feet.

MonMy discharge of Tombigbee River at Columbus, Miss., for 1911. 

[Drainage area, 4,440 square miles.]

Month.

March ..... ..... ..

May.....................................

July.....................................

October. ................................

The year ..........................

Discharge in second-feet.

Maximum.

26,500 

15,400 

15,700 

46,500 

14,400 

2,900 

7,600 

4,420 

1,460 

1,070 

1,390 

27,700

46,500

Minimum.

1,490 

1,980 

1,840 

2,370 

1,100 

362 

590 

840 

250 

195 

310 

685

195

Mean.

7,500 

7,050 

5,320 

25,800 

3,800 

929 

2,640 

2,610 

613 

382 

758 

13,400

5,880

Per 

square 

mile.

1.69 

1.59 

1.20 

5.81 

.856 

.209 

.595 

.588 

.138 

.086 

.171 

3.02

1.32

Run-ofl 

(depth in 

inches on 

drainage 

area).

1.95 

1.66 

1.38 

6.48 

.99 

.23 

.69 

.68 

.15 

.10 

.19 

3.48

17.98

Accuracy.

B. 

B. 

B. 

C. 

B. 

B. 

A. 

A. 

B. 

B. 

B. 

B.
76 SURFACE WATER SUPPLY, 1911, PART II.

TOMBIGBEE RIVER AT EPES, ALA.

Location. At the Alabama Great Southern Railroad bridge just below the mouth of 

Jones Creek, about half a mile from Epes, Ala.

Records available. 1900 and 1901 (discharge measurements were made by the 

United States Geological Survey and a rating was developed for those years); 

November 29,1904, to December 31,1911. A record of approximate gage heights, 

based on a gage painted on one of the bridge piers, has been kept by the Alabama 

Great Southern Railroad for a number of years.

Drainage area. 8,830 square miles.

Gage. Standard chain gage attached to the railroad bridge; datum unchanged.

Channel. At flood stages gage heights of 38 feet and over the left bank overflows 

for about seven-eighths of a mile under the trestle approach to the bridge. Some 

changes in section have probably occurred since the station was established.

Discharge measurements. Made from the downstream side of the railroad bridge.

Accuracy. Good results have been obtained at this station in the years when sufficient discharge measurements were made to fix the rating curve.

Cooperation. Gage observer paid by the Alabama Geological Survey.

Discharge measurements of Tombigbee River at Epes, Ala., in 1911.

Date.

Aug. 17

17

Hydrographer.

.....do....................................................................

height.

Feet. 

3.40

3.98

Discharge.

8ec.-ft. 

2,860

3,310

Daily gage height, in feet, of Tombigbee River at Epes, Ala., for 1911. 

[George Haven, observer.]

Day.

1..... ..........

2...............

3...............

4...............

5...............

6...............

7...............

8...............

9...............

10...............

11...............

12...............

13...............

14...............

15...............

16...............

17...............

18...............

19...............

20...............

21...............

22...............

23...............

24...............

25...............

26...............

27...............

28...............

29...............

30

31...............

Jan.

3.75

21.6

27.4

27.8

28.0

28 4

29.3

29.9

29.9

28.5

23.6

16.5

11.2

8.6

7.3

6.6

5.8

5.1

4.7

4.4

4.2

4.0

3.9

4.05

4.05

3.9

3.75

3.95

4.85

5.2

Feb.

5.1

5.0

4.9

4.75

4.5

4.35

6.2

5.4

10.8

14.6

15.8

18.0

19.6

20.7

21.2

21.2

20.6

19.0

16-8

14.7

12.8

12.0

11.4

10.7

9.4

7 3

7.2

.......

Mar.

11.1

13.6

15.0

16.4

17.3

17.5

16.0

11.7

9.2

8.0

7.6

7.0

6.5

5.9

5.3

4.9

4.75

4.5

4.3

4.15

4.0

4.15

4.7

4.7

4.75

4.5

4.45

4.85

7.5

Q 3

9.9

Apr.

9.0

7.7

6.5

5.7

9.9

20.4

23.8

26.0

27.9

29.5

31 i

33.3

34.0

IK 7

36.4

36.6

36.6

36.1

34.9

33.1

3i 1

30.0

29.8

30.5

31.8

33.0

34.0

35.4

35.8 

in o

May.

33.9

31.5

28.7

25.0

19.8

14.5

10.7

8.8

7.6

7.0

6 4

5.7

5.0

4.55

4.2

3.9

o A

3.4

3.2

3.05

9 Q

3.0

3.7

5.0

5.0

5.2

5.3

i Q

4.35 

3.5

3.1

June.

2.75

2.45

2.25

9 1

2.0

1.85

1.8

1.75

1.65

1.65

1.65

1.65

1.45

1.35

1.35

1.25

1.15

1.15

1.15

1.15

1.2

1.25

l.?5

1.6

2.05

3:3

3

QE

4.95

4.8 

5.0

July.

5.0

4.5

4.0

4.1

2.9

2.3

2.0

1.9

2.0

2.0

1.9

1.9

2.0

3.9

10.4

12.4

13.2

8.4

6.4

5.3

A. R

4.1

4.1

10.0

12.9

12.8

11.8

in Q

9.2 

7.0

5.2

Aug.

4.0

4.1

4.2

5.0

5.2

5.4

5.2

4.8

4.2

3.7

4.0

4.2

3.9

3.3

2.7

2.5

3.5

4.6

6.0

6.2

6.6

7.1

6.6

6.5

6.1

5.7

5.1

4.2

3.6 

3.7

3.9

Sept.

3.6

3.0

2.6

2.2

2.0

2.0

1.6

1.8

1.8

1.6

1.6

1.8

1.9

1.9

1.9

1.8

1.8

1.7

1.6

1.4

1.2

1.0

1.0

9

.9

.9

.8

.8

.8

.7

Oct.

0.7

.6

.6

.6

.6

.5

.5

.5

.5

.5

.6

.6

.6

.6

.6

.7

1.4

1.5

1.4

1.3

1.6

2.0

2.0

1.8

1.6

1.3

1.2

1.1

1.0 

1.0

.9

Nov.

0.9

.9

.9

.9

.9

1.0

1.1

1.8

4.0

2.7

2.4

2.8

3.4

3.0

2.8

2.6

2.6

2.6

2.8

2.7

2.5

2.6

2.8

2 7

2.4

2.2

2.1

5.1

5.2 

4.0

Dec.

3.7

3.8

3.9

3.7

3.4

3.0

2.6

2.4

2.3

2.2

2.6

8.8

15.4

22.6

26.6

30.0

30.8

30.8

30.2

30.4

31.5

33.6

36.1

36.8

37.0

37.2

17 4

37.0

37.0 

37.2

38.2
BASTEEN GULF OF MEXICO BASINS. 77 

Daily discharge, in second-feet, of Tombigbee River at Epes, Ala., for 1911.

Day.

1. ..............

2...............

3...............

4...............

5...............

6...............

7...............

8...............

9...............

10...............

11...............

12...............

13...............

14...............

15...............

16...............

17...............

18...............

19...............

20...............

21...............

22...............

23...............

24...............

25...............

26...............

27...............

28...............

29...............

30...............

31...............

Jan.

2,840

21,300

26,200

27,300

27,700

27,900

28,400

29,300

29,900

29,900

28,500

23,400

16,000

10,500

7,800

6,500

5,840

5,080

4,420

4,040

3,760

3,580

3,400

3,310

3,440

3,440

3,310

3,180

3,360

4,180

4,510

Feb.

4,420

4,320

4,220

4,080

3,850

3,720

5,460

4,700

10,100

14,000

15,300

17,500

19,200

20,300

20,900

20,900

20,200

18,600

16,300

14,100

12,100

11,300

10,700

9,960

8,600

7,200

6,500

6,410

Mar.

10,400

13,000

14,400

15,900

16,800

17,000

15,500

11,000

8,400

7,200

6,800

6,220

5,740

5,180

4,600

4,220

4,080

3,850

3,670

3,540

3,400

3,540

4,040

4,040

4,080

3,850

3,800

4,180

6,700 

8,500

9,120

Apr.

8,200

6,900

5,740

4,980

9,120

20,000

23,600

25,900

27,800

29,500

31,500

33,500

34,200

35,900

36,700

36,900

36,900

36,400

35,100

33,200

31,200

30,000

29,800

30,500

31,900

33,100

34,200

35,600

36,100 

35,400

May.

34,100

31,600

28,700

21,800

19,400

13,900

9,950

8,000

6,800

6,220

5,650

4,980

4,320

3,900

3,580

3,310

3,040

2,860

2,680

2,540

2,420

2,500

3,130

4,320

4,320

4,510

4,600

4,220

3,720 

2,950

2,590

June.

2,290

2,040

1,880

1,760

1,680

1,570

1,530

1,490

1,420

1,420

1,420

1,420

1,280

1,200

1,200

1,140

1,060

1,060

1,060

1,060

1,100

1 140

l'200

1,380

1,720

2,770

3,360

4,270

4,130 

4,320

July.

4,320

3,850

3,400

3,490

2,420

1,920

1,680

1,600

1,680

1,680

1,600

1 600 i'e80

3,310

9,640

11,700

12,500

7,600

5,650

4,600

3,940

3,490

3,490

9,220

12,200

12,100

11,100

10,200

8,400 

6,220

4,510

Aug.

3,400

3,490

3,580

4,320

4,510

4,700

4,510

4,130

3,580

3,130

3,400

3,580

3,310

2,2^0

2,240

2,080

2,950

3,940

5,270

5,460

5,840

6,320

5,840

5,740

5,360

4,980

4,420

3,580

3,040 

3,130

3,310

Sept.

3,040

2,500

2,160

1,840

1,680

1,680

1,380

1,530

1,530

1,380

1,380

1,530

1,600

1,600

1,600

1,530

1,530

1,460

1,380

1,240

1,100

960

960

895

895

' 895

830

830

830 

770

Oct.

770

710

710

710

710

655

655

655

655

655

710

710

710

710

710

770

1,240

1,310

1,240

1,170

1,380

1,680

1,680

1,530

1,380

1,170

1,100

1,030

960 

960

895

Nov.

895

895

895

895

895

960

1,030

1,530

3,400

2,240

2,000

2,330

2,860

2,500

2,330

2,160

2,160

2,160

2,330

2,240

2,080

2,160

2,?30

2,240

2,000

1,840

1,760

4,420

4,510 

3,400

Dec.

3,130

3,220

3,310

3,130

2,860

2,500

2,160

2,000

1,920

1,840

2,160

8,000

14,800

22,300

26,500

30,000

30,900

30,900

30,200

30,400

31,600

33,800

36,400

37,100

37,300

37,500

37,700

37,300

37,300 

37,500

28,500

NOTE. Daily discharge computed from a rating curve feirly well denned below 16,000 second-feet. 

Monthly discharge of Tombigbee River at Epes, Ala., for 1911.

[Drainage area, :,830 square miles.]

Month.

April .................................

May.... . ....

July....................................

August ..................................

Maximiu

29,90 

20,90 

17,00 

36,90 

34,10 

4,32 

12,50 

6,32 

3,04 

1,68 

4,51 

38,50

38,50

Discharge in second-feet.

i.

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

0

Minimum.

2,840 

3,720 

3,400 

4,980 

2,420 

1,060 

1,600 

2,080 

770 

655 

895 

1,840

655

Mean.

13,000 

11,200 

7,510 

28,000 

8,370 

1,810 

5,510 

4,060 

1,420 

965 

2,110 

21.100

8,740

Per 

square 

mile.

1.47 

1.27 

.851 

3.17 

.948 

.205 

.624 

.460 

.161 

.109 

.239 

2.39

.990

Run-oft 

(depth in 

inches on 

drainage 

area).

1.70 

1.32 

.98 

3.54 

1.09 

.23 

.72 

.53 

.18 

.13 

.27 

2.76

13.45

Accuracy.

B. 

B. 

A. 

B. 

B. 

B. 

B. 

A. 

B. 

B. 

B. 

B.
78 SUBFACE WATEE SUPPLY, 19U, PART H.

BLACK WAEEIOE EIVEE NEAE COEDOVA, ALA.

Location. At the Kansas City, Memphis & Birmingham Railroad bridge, 1 mile east 

of Cordova and just below the mouth of Cane Creek, 12 miles below junction of 

Mulberry and Sipsey forks, and 6 miles below the mouth of Blackwater Creek.

Records available. May 21,1900, to December 31,1911.

Drainage area. 1,900 square miles.

Gage. Staff gage in three sections, the lower one being a sloping timber bolted to 

bedrock, graduated from 0.6 to 10.0 feet; the other two sections are vertical 

timbers. All the sections are on the right bank near the railroad bridge. The 

datum of the gage has not been changed, but several gages at slightly different 

sites have been used.

Channel. The bed is rocky with a fair current except at low stages; at high stages the 

left bank overflows under the bridge.

Discharge measurements. Made from the railroad bridge. Some of the low-water 

measurements have been made by wading or from a boat at other sections near by.

Accuracy. The minimum flow is especially low per square mile of drainage area, 

and the rating at this stage is subject to considerable change.

Cooperation. Gage heights furnished by the United States Engineer Corps.

Discharge measurements ofBlacb Warrior River near Cordova, Ala., for 1911.

Date.

Nov. 10

10

Hydrographer.

.....do....................................................................

Il6l£fll1>*

Feet. 

-0.25

-0.25

Discharge.

Sec.-ft. 

446

444

Daily gage height, in feet, of Black Warrior River near Cordova, Ala., for 1911. 

[C. R. Jones, observer.]

Day.

1911.

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...............

Jan.

0.4

16.0

30.0

24.5

10.0

6.0

4.0

3.0

2.6

2.0

2.0

1.8

1.6

1.4

1.4

1.4

1.3

1.3

1.0

1.0

.8

.7

.6

.4

1.2

1 Q

1.8

1.7

1.6

1.6

1.5

Feb.

1.3

1.1

Q

1.1

1.4

1.5

3.5

4.2

7.8

14.8

11.6

0 IT

6.1

6.1

e Q

4 0

4.1

3.6

O Q

3.8

3.8

3.0

2.6

2.3

2.1

2.0

2.5

8.7

Mar.

7 9

7.0

R 9

4.9

4.0

3.5

3.0

2

O

1.7

1.4

1.4

1 ^

1.1

1.0

1.0

g

.8

.8

.7

.6

.6

.6

.6

.5

.5

1.1

2.5

3.0

2.6

2.2

1 7

Apr.

1.5

1.2

1.0

.8

22.0

28.5

16.8

12.6

22.0

20.0

12.0

Q rj

6.8

5.5

5.0

5.3

5.0

4.2

a

fj

17.1

13.2

O A

5.1

4.0

3.2

2 A

2.1

2

0

2.8

2.7

May.

2.6

3.4

3.0

2.6

O A

1.5

1.2

.8

.7

.5

.4

.3

.3

.3

.15

.15

.0

.0

.1

.5

1 ^

3.1

3.0

2.4

1.5

.8

.5

.2

.0

- .1

June.

-a 15

- .2

- .25

- .3

- .3

- .35

- .4

 45

- .5

- .5

- .5

- .55

- .6

- .65

- .7

- .7

- .7

- .7

- .7

- .5

- .5

- .5

- .5

.8

.4

Q

1.5

1.1

Q

.4

July.

0.0

- .2

- .3

- .4

- .5

- .5

.3

.0

- .2

.0

.6

.4

.4

1.9

1.1

.8

.6

.4

.1

.3

.6

1.1

.9

.6

.3

.0

- .1

- .2

- .3

- .3

Aug.

-a 2

.2

.9

1.8

.6

.3

.1

.3

.5

.2

.1

.0

- .2

.0

.2

.5

.7

1.2

1.6

1.1

.7

.3

.0

- .2

- .25

- .3

- .35

- .4

- .4

- .5

- .6

Sept.

-a 6

- .6

- .6

- .65

- .7

- .7

- .7

- .7

- .5

- .5

- .6

.1

.0

- .2

- .3

 A

- .5

- .55

- .6

- .6

- .6

- .65

- .7

 T\

« 8

- .85

- .9

 9

- .9

- .9

Oct.

-a 95

- .95

 95

-1.0

-1.0

-1.0

-1.0

-1.0

-1.0

-1.0

-1.0

-1.0

-1.0

-1.0

-1.0

-1.0

- .5

3.0

1.1

1.0

.9

.7

.5

.2

.1

.1

.0

.0

- .1

- .3

- .6

Nov.

 0.9

-1.0

-1.0

-1.0

-1.0

-1.0

-1.0

-1.0

 Q

- .5

- .5

- .2

- .2

- .3

- .4

- .5

- .6

 - 4.

- .4

- .4

- .4

- .5

- .5

 .2

- .1

- .2

- .2

.7

.8

.8

Dec.

 .ft *>

- .2

__ O

- .2

- .3

- .3

- .3

- .3

- .3

- .4

__ q

2.0

7.0

9.2 in ^

13.3

11.4

6.5

6.4

4.5

5.4

7.4

14.0

13.0

8.5

& A

20.2

9f> R

12.5

7.6

14.0
EASTERN GULF OF MEXICO BASINS. 79 

Daily discharge, in second-feet, of Black Warrior River near Cordova, Ala., for 1909-1911.

Day.

1909. 

1... ............

2...............

3. ............ --

4..........-----

5.... ...... -----

6...............

7...............

8...............

O

10...............

11...............

12...............

13...............

14....... ........

15..........---.-

16...............

17...............

18...............

19...............

20

21...............

22...............

23...............

24...............

25...............

26...............

27...............

28...............

29...............

30...............

31...............

1910. 

1. ..............

2...............

3...............

4...............

5...............

6...............

7....... ........

8...............

9...............

10...............

11...............

12...............

13...............

14...............

15...............

16...............

17...............

18...............

19...............

20...............

21...............

22...............

23...............

24...............

25...............

26...............

27...............

28...............

29...............

30............... 

31...............

Jan.

1,460

1,260

1,080

915

4,780

12,100

9,950

5,820

4,580

3,400

2,830

2,490

2,220

2,060

6,340

9.110

13,900

10,900

8,130

5,560

4,520

3,760

3,400

3,120

2,720

2,220

1,960

1,750

1,600

1,410

1,310

430

430

430

398

398

895

14,800

10,900

5,820

4,460

3,520

2,720

2,060

1,650

1,360

1,170

1,080

985

1,550

1,170

2,940

6,080

4,390

3,290

2,600

2,060

1,850

1,650

1,460

1,260 

1,120

Feb.

1,220

1,120

1,080

995

995

1,850

2,940

2,940

1,850

17,400

19,900

13,600

10,400

24,100

30,400

31,200

23,800

18,600

13,800

10,600

9,110

7,570

19,200

25,600

29,600

23,000

15,000

10,900

985

895

852

852

810

810

810

770

770

770

730

810

1,170

895

810

730

895

18,200

15,400

8,550

6,080

6,870

5,950

5,300

5,170

4,780

4,130

8,130

.......

Mar.

7,710

6,600

7,710

7,430

6,340

5,560

6,470

8,830

24,400

27,600

22,600

21,200

41,600

60,400

59,600

50,000

40,200

28,900

18,400

10,400

17,600

19,400

11,800

9,950

8,130

6,730

5,820

5,170

4,390

3,760

3,290

12,800

12,400

13,200

8,270

5,960

4,910

3,880

3,180

2,600

2,160

4,000

3,640

2,600

2,270

1,850

1,650

1,460

1,360 i 9fin

1,170

1,080

085

940

895

852

810

770

730

690

650

612

Apr.

2,940

2,660

2,380

2,160

1,960

1,850

2,940

7,150

8,830

4,520

3,400

2,830

3,520

12,400

9,670

5,950

4,780

3,880

3,290

2,830

2,490

2,380

3,290

19,900

11,500

14,600

14,500

13,200

10,100

7,570

575

538

538

500

538

730

650

612

575

538

538

500

500

500

465

500

1,650

2,380

1,850

1,360

1,080

895

810

730

650

1,460

538

500

465

465

May.

10,100

12,000

8,130

6,470

4,650

3,400

2,380

2,830

2,160

1,850

1,650

1,500

1,410

1,260

1,170

1,170

2,160

2,380

2,270

2,940

1,750

2,270

1,960

1,260

1,550

3,060

2,940

2,270

2,060

1,850

1,360

430

398

650

985

730

538

430

650

1,080

770

612

500

430

365

332

500

1,170

810

500

430

895

9,110

11,100

7,570

8,270

10,200

5,690

3,520

2,490

1,850 

1,360

June.

2,160

5,560

6,470

30,400

29,600

17,000

10,200

7,010

4,390

10,500

8,130

6,470

5,690

5,430

6,080

5,820

4,520

3,640

2,830

2,160

2,600

29,600

27,400

18,600

10,200

7,710

7,010

6,470

5,820

5,300

1,080

895

730

650

575

1,170

1,850

1,260

770

1,960

9,950

5,170

4,520

3,760

3060

2,380

1,850

1,460

1,080

810

3,180

4,130

4,260

2,380

1,650

1,960

1,550

1,960

2,270

3,060

July.

4,520

3,520

2,720

2,270

1,850

1,460

1,170

1,360

1,850

2,380

1,850

1,460

1,260

1,080

995

915

915

1,170

1,080

995

915

875

835

835

760

685

610

540

540

1,080

1,960

4,520

7,290

6,470

6,210

7,710

8,690

13,900

12,800

9,250

7,990

6,470

4,910

3,700

4,260

4,650

2,490

3,290

3,880

5,040

4,390

3,640

3,290

2,060

1,080

1,260

1,750

1 360

1^080

1,080

810 

1.650

Aug.

2,380

1,750

2,270

2,540

2,160

2,270

2,490

2,490

1,750

1,260

1.080

915

760

685

610

575

575

540

470

438

405

375

345

345

318

318

290

290

290

290

290

1,460

1,170

895

895

985

1,170

4,520

6,470

3,060

2,490

1,650

1,170

1,080

1,080

985

730

500

365

300

240

300

240

240

240

240

190

190

190

190

190 

300

Sept.

318

318

290

290

265

265

240

218

218

195

195

195

195

195

175

175

155

155

155

195

610

540

835

540

345

290

265

240

218

300

500

895

500

430

365

365

240

145

110

110

110

80

80

53

53

53

40

40

28

28

28

28

110

240

190

145

110

145

190

Oct.

195

195

195

195

175

175

175

155

155

140

14rt

140

140

140

610

470

405

345

290

240

470

345

240

240

240

218

218

195

175

155

155

190

190

145

145

145

110

1,460

895

895

810

810

730

730

1,850

2,830

2,720

1,360

1,080

500

365

240

190

190

145

145

145

110

300

240

240 

240

Nov.

155

155

155

155

14rt

I4n

140

140 i4n

14rt

tdn

140

140

140

tdn

155

470

345

290

240

240

218

470

405

345

318

290

290

265

265

190

190

190

145

145

190

190

190

145

145

145

145

145

145

110

110

110

110

110

110

110

110

110

110

110

110

110

190

190

190

Dec.

9jU\

375

318

265

1At\

685

1,460

2,380

2,380

1,550

1,750

540

290

. 540

915

760

610

540

540

470

405

345

290

265

405

540

540

540

505

505

505

145

145

145

190

810

4,130

7,150

3,180

1,460

1,080

895

810

730

730

650

575

500

430

365

365

300

300

300

500

1,260

1,170

985

895

895

895 

810

1520° WSP 302 13 6
80 SURFACE WATEE SUPPLY, 1911, PART H.

Daily discharge, in second-feet, of Black Warrior River near Cordova, Ala., for 1909-1911-

Continued.

Day.

1011. 

1.. .............

2. ..............

8...............

4...............

5...............

6...............

7...............

8... ............

9...............

10...............

11...............

12...............

13...............

14...............

15...............

16...............

17...............

18...............

19...............

20...............

21...............

22...............

23...............

24...............

25...............

26...............

27...............

28...............

29...............

30...............

31...............

Jan.

880

22,200

43,200

35,900

13,200

7,430

4,780

3,520

3,060

2,380

2,380

2,160

1,960

1,750

1,750

1,750

1,650

1,650

1,360

1,360

1,190

1,110

1,030

880

1,560

2,270

2,160

2,060

1,960

1,960

1,850

Feb.

1,650

1,460

1,280

1,460

1,750

1,850

4,130

5,040

9,950

20,400

15,600

11,200

7,570

7,570

7,150

5,950

4,260

3,400

4,520

4,520

3,520

3,060

2,720

2,490

2,380

2,940

11,200

Mar.

10,100

8,830

7,710

5,950

4,780

4,130

3,520

2,600

2,060

1,750

i "riyi

1,650

1,460

1,360

I

QfiA

1,280 i ion

1,190

1,110

1,030

1,030

1 030

1^030

CKd

955

1 Afift

9 o/in

3,520

3,060

2,600

2,060

Apr.

1,850

1,560

1,360

1,190

31,200

<in om

23,400 17 ftftft

31,200

28,200

16,200

11,200

8,550

6,730

6,080

6,470

6,080 d fun

4,390

90 CAn

18,000

10,200

6,210

4,780

3,760

9 &%f\

2

AQ(\

3,290

3

OQA

3,180

May.

3,060

4,000

3,520

3,060

2,380

1,850

1,560

1,190

1,110

955

con

810

810

810

740

705

705

605

605

670

955

1,650

3 640

3^520

2,830

I

QCft

1,190

nee

74f»

605

540

June.

508

475

445

415

415

385

355

328

300

300

300

275

250

228

205

205

205

205

205

300

300

300

OAA

1,190

880

1,280

1,850

1 4flft

1,280

880

July.

605

475

415

355

300

300

810

605

475

605

1,030

880

880

2,270 i dfin

1,190

1,030

880

740

670

810

1,030

1 460

1^280 i nan

fiin

605 ut\

475 Aid

415

Aug.

475

740

1,280

2,160

1,030

810

670

810

955

740

670

605

475

605

740

955

1,110

1,560

1 Ofifl

1,460

1,110

810

605

475 ill

415

385

355

355

300

250

Sept.

250

250

250

228

205

205

205

205

300

300

250

670

605

475

415

355

300

275

250

250

250

228

205

185

165

1AR

130

130

iqn

130

Oct.

115

115

115

100

100

100

100

100

100

100

100

100

100

100

100

100

300

3,520

1 460

1*360

1,280

1,110

nee

740

670

670

605

605

K4fl

415

250

NOV.

130

100

100

100

100

100

100

100

130

300

300

475

475

415

355

300

250

355

355

355

355

300

300

475

K4fl

475

475

1,110

1 1Qf\

1,190

Dec.

475

475

475

475

415

415

415

415

415

355

415

2,380

8,830

12,000

13,600

18,100

15,200

8,130

7 QOfl

5,430

6,600

9,390

1Q 9ftA

17,600

U QAfk

10 fjflA

28,400

28,900

16,900

9 A^n

19,200

NOTE. Dafly discharge computed from a rating curve fairly well defined between 1,400 and 19,000 secondfeet. Low-water estimates below 1,000 second-feet are very uncertain.
EASTEBH" GULF OF MEXICO BASESTS. 81

Monthly discharge of Black Warrior River near Cordova, Ala., for 1909-1911. 

[Drainage area, 1,900 square mfles.]

Month.

1909.

March. .................................

Aprfl. ..................................

WQ-OJuly... .................................

October. ................................

TWvwmTvvr

1910.

March Tr - - - ----- . -------------------

Aprfl...................................

May....................................

July....................................

1911.

March ,,-- -- ------ ...................

Md-rr

July...............................--:..

Discharge in second-feet.

WjMrimmn.

13,900 

31,200 

60,400 

19,900 

12,000 

30,400 

4,520 

2,540 

835 

610 

470 

2,380

60,400

14,800 

18,200 

13,200 

2,380 

11,100 

9,950 

13,900 

6,470 

895 

2,830 

190 

7,150

18,200

43,200 

20,400 

10,100 

40,900 

4,000 

1,850 

2,270 

2,160 

670 

3,520 

1,190 

28,900

43,200

Itfjpitntiin.

915 

995 

3,290 

1,850 

1,170 

2,160 

540 

290 

155 

140 

140 

240

140

398 

730 

612 

465 

332 

575 

810 

190 

28 

110 

110 

145

28

880 

1,280 

955 

1,190 

540 

205 

300 

250 

130 

100 

100 

355

100

Mean.

4,410 

13,200 

18,000 

6,320 

3,040 

9,830 

1,430 

1,020 

282 

236 

226 

700

4,830

2,740 

3,680 

3,210 

788 

2,400 

2,380 

4,740 

1,090 

190 

650 

143 

1,060

1,920

5,560 

5,500 

2,760 

11,000 

1,560 

534 

801 

816 

265 

520 

377 

8,880

3,200

Per 

square 

mile.

2.32 

6.95 

9.47 

3.33 

1.60 

5.17 

.753 

.537 

.148 

.124 

.119 

.368

2.54

1.44 

1.94 

1.69 

.415 

1.26 

1.25 

2.49 

.574 

.100 

.342 

.075 

.558

1.01

2.93 

2.89 

1.45 

5.79 

.821 

.281 

.422 

.429 

.139 

.274 

.198 

4.67

1.68

Run-off 

(depth in 

inches on 

drainage 

area).

2.68 

7.24 

10.92 

3.72 

1.84 

5.77 

.87 

.62 

.17 

.14 

.13 

.42

34.52

1.66 

2.02 

1.95 

.46 

1.45 

1.40 

2.87 

.66 

.11 

.39 

.08 

.64

13.69

3.38 

3.01 

1.67 

6.46 

.95 

.31 

.49 

.49 

.16 

.32 

.22 

5.38

22.84

Accuracy.

B. 

C. 

C. 

B. 

B. 

C. 

C. 

C. 

C. 

C. 

C. 

C.

B. 

B. 

B. 

C. 

B. 

B. 

B. 

C. 

D. 

C. 

D. 

C.

cB. 

B. 

C. 

C. 

D. 

C. 

C. 

D. 

D. 

D. 

C.
82 SURFACE WATER SUPPLY, 1911, PART H.

PEARL RIVER BASIN. 

PEARL RIVER AT JACKSON/ MISS.

Location. At the county highway bridge at Jackson, one-eighth mile above the

Alabama & Vicksburg Railway bridge; about 5 miles above the mouth of Richland

Creek.

Records available. June 24, 1901, to December 31, 1911. 

Drainage area. 3,120 square miles.

Gage. Standard chain gage attached to the highway bridge; datum unchanged. 

Channel. The channel is somewhat obstructed by old piles. The right bank is

high and does not overflow. The left bank is of cleared ground and overflows for

several hundred feet at a stage of about 20 feet. 

Discharge measurements. Made from the highway bridge. 

Artificial control. The flow is subject to little or no artificial control above or near

the station. 

Accuracy. Some slight changes in the controlling section may affect the accuracy of

low-water estimates. 

Cooperation. Gage heights are furnished by the United States Weather Bureau.

Discharge measurements of Pearl River at Jackson, Miss., in 1911.

Date.

Aug. 18

18

Hydrographer. &,

Feet. 

5.22

5.26

Discharge.

Sec.-ft. 

1,870

1,850

Daily gage height, in feet, of Pearl River at Jackson, Miss., for 1911.

Day.

1...............

2...............

3...............

4...............

5...............

6...............

7...............

8...............

9...............

10...............

11...............

12...............

13...............

14...............

15...............

16...............

17...............

18...............

19...............

20...............

21...............

22...............

23...............

24...............

25...............

26...............

27...............

28...............

29 .

30...............

31...............

Jan.

3.8

14.4

17.4

IS Q

20.2

20 2

20.0

19.5

19.3

20.6

21.2

21.1

20.3

18.0

15.3

19 9

9

e

8.7

7.1

6.0

5.4

A K

4.2

4. 1

4.0

3.8

o 7

4.0

3.4

4 1

4.4

Feb.

4.6

4.3

4.1

4, 9

0 Q

3.6

3.5

3.8

5.4

6.1

8.4

8. 9

9 A

10.4

11.2

11.7

11 9

11 Q

19 ft

11 Q

11.1

10.1

9 A

8 Q

8.5

7 Q

7 Q

Mar.

6.9

5.9

5.2

4.6

4.2

4.0

3.6

4.0

3.8

3.5

3.2

9 Q

2.8

2.7

2.6

2

c

2.4

9 9

2.2

9 9

9 9

9 1

9 ft

2 1

9 O

9 *>

2,2

2 9

2 9

2.6

Apr.

2.9

2.9

2.9

3.0

2.8

2.5

3.5

7.4

14 0

15.2

17.1

Id 4.

9ft <t

21.4

22 1

22.6

22.4

99 ft

91 7

21 6

91 ft

ort Q

IS Q

16.8

14.3

12.4

1ft ^

ift a

Q K

ft o

May.

10.0

11.5

12 4

12.8

12.2

10.2

8.9

7.8

6.9

6.1

5.7

4.6

4.2

3.6

3.5

3 f

*> ft

2.5

1 Q

2.2

O I

1 Q

1.7

1.6

1 A.

1 4

1 9

L4

1.5

1 Q

June.

2.3

2.1

1.8

1.5

1.5

1.4

1.3

1.3

1.3

1.1

1.4

1.5

1.3

1.2

1.0

i i

1.1

Q

1.0

1 *>

1.7

9 Q

4.3

4 6

July.

4.3

4.2

4.3

5.7

4.7

4.6

4.8

5.1

5 9

4.1

3.1

2.7

2.6

2.4

2.5

4.1

3

e

4.8

5.6

5.6

5.4

5.3

4. 1

4. Q

5.6

6.4

A 9

4 6

Aug.

3.9

4.1

3.2

3.0

3.9

4.6

5.0

4.5

3.9

3.5

3.1

2.8

5.4

4.9

3.1

2.8

3.9

4.9

5.5

4.6

4.5

5.1

5.8

5.9

4.6

4.5

3.6

3.2

2 A

2.5

Sept.

2.4

2.2

2.8

2 4

2.2

2.0

1.8

1.7

2.3

2.1

2.0

1.9

1.7

1.9

1.7

1 7

1.7

1.6

1.6

1.5

1.5

i i

1.3

1.2

1.0

1.0

.7

.7

Oct.

0.7

,7

.7

.7

.6

.6

.6

.6

.5

.5

.5

.5

.5

.5

.4

.4

.4

.4

.4

.4

.4

.3

.3

.3

.3

.3

Nov.

0.3

.3

.3

.3

.3

.5

.6

.7

.7

.8

1.2

1.3

1.5

1.4

1.4

1.3

1.3

1.2

1.2

1.1

1.1

1.0

.8

.8

.8

.7

Dec.

0.7

.8

.8

1.0

1.2

1.1

1.2

1.1

1.1

1.1

2 1

3.0

7.2

S Q

7.8

7.4

8.2

9

(\

10.1

10.5

14.0

14.0

13.8

14.0

17.5

16.0

17.1

16.9

1&4
EASTERN GULF OF MEXICO BASINS. 83 

Daily discharge, in second-feet, of Pearl River at Jackson, Miss., for 1911.

Day.

1.. ....... ......

2...............

3...............

4...............

5...............

6...............

7...............

8...............

9...............

10...............

11...............

12...............

13...............

14...............

15...............

16...............

17...............

18...............

19...............

20...............

21...............

22...............

23...............

24...............

25...............

26...............

27...............

28...............

29...............

30...............

31...............

Jan.

1,220

7,580

9,820

11,000

12,200

12,200

12,000

11,600

11,400

12,500

14,000

13,000

12,300

10,300

8,210

6,060

4

JAA

3,860

2,920

2 01 A

1,980

1,540

1,400

1 sfifi

1,320

1,180

1,320

1 fWI

1,360

1,500

Feb.

1,580

1,450

1,360

1,400

1,400

1,270

1,140

1,090

1,220

1,980

2 <?fin

3,680

3,980

4,280

A Qflfl

5,420

5

7/tA

5,870

5,870

5 (MA

5

CAA

5,350

4,700

4,400

3,980

3 74/1

3,380

3,380

Mar.

2,800

2,260

1,870

1,580

1,400

1,320

1,220

1,140

1,320

1,220

1,090

955

830

7QA

750

710

670

630

555

555

555

555

520

485

520

555

KKK

555

555

555

710

Apr.

830

830

830

870

790

670

1,090

3,080

7,300

8,140

9

CCA

11,500

12,400

iq OAA

14,000

14,600

14 300

13' 900

13,600

10 CAA

12,900

12,300

11 000

9

OAf\

7,510

6,200

4,830

5,020

A OAfl

3,620

May.

4,640

5,610

6,200

6,460

6,060

4,760

3,980

3,320

2,800

2,360

2,140

1,580

1,400

1 140

1,090

910

7QA

670

450

555

520

450

QQA

OKA

9Qfl

OQA

240

290

OOA

350

450

June.

CQA

520

415

320

320

290

265

265

265

240

990

9on

320

265

240

200

180

160

180

265

220

180

180

200

240

380

830

1,450

1,580 1 ssn

July.

1 4.Kfl

1,400

1,450

2,140

1,630

1,580

1,680

1,820

1,870

1,360

Q1 A

750

710

630

670

1,360

1,090

1,680

1 Q9ft

2 nnn

9 IK)f>

1.980

1,920

1,360

1,720

2

AQA

9 pan

2,580

2

JOA

9 non

1,580

Aug.

1,270

1,360

955

870

1,270

1.580

1,770

1 <vlfi

1,270

1,090

Qlfi

7Qfl

1,980

1,720 Qin

7Qfl

1,270

1,720

2,040

1,580

1,540

1,820

2,200

2 9 fin

1 920

1,580

1 KJ.fl

1,140

ARC

710

670

Sept.

630

555 TOO

630

555

485

415

380

wo

520

485

450

380

AK(\

380

380

380

350

350

qoA

320

265

OAK

200

200

180

160 tAK

145

Oct.

-tAZ

1AX

145

145

130

130

130

120

120

120

120

120

120

110

110

110

110

110

110

110

100

100

100

100

100

100

100

100

100

100

Nov.

1(V>

100

100

90

90

100

100

120

130

145

I4t;

160

240

265

320

290

290

265

265

OAn

240

220

200

180

160

160

180

160

145

Dec.

lit;

160

160

180

180

200

240

220

240

220

220

220

520

870

2,970

3,980

3,320

3,080

3,560

4 fun

4,700

4,960

7 300

7*300

7,160

7 "vm

9,900

8,700

9 ftfsn

9,420

10,600

NOTE. Daily discharge computed from a fairly well defined rating curve.

Monthly discharge of Pearl River at Jackson, Miss., for 1911. 

[Drainage area, 3,120 square miles.]

Month.

February . ..............................

April...................................

May....................................

July....................................

October.................................

Discharge in second-feet.

Maximum.

14,000 

5,940 

2,800 

14,600 

6,460 

1,580 

2,580 

2,260 

790 

145 

320 

10,600

14,600

MrnimnTTi1,040 

1,090 

485 

670 

240 

160 

630 

670 

145 

100 

90 

145

90

Mean.

6,260 

3,450 

961 

7,740 

1,960 

422 

1,630 

1,390 

386 

116 

181 

3,600

2,330

Per 

square 

mile.

2.01 

1.11 

.308 

2.48 

.628 

.135 

.522 

.446 

.124 

.037 

.058 

1.15

.747

Run-off 

(depth in 

inches on 

drainage 

 area).

2.32 

1.16 

.36 

2.77 

.72 

.15 

.60 

.51 

.14 

.04 

.06 

1.33

10.16

Accuracy.

B. 

B. 

B. 

B. 

B. 

B. 

B. 

B. 

B. 

C. 

C. 

B.
84 SURFACE WATER SUPPLY, 1911, PART H. 

MISCELLANEOUS MEASUREMENTS.

The following miscellaneous discharge measurements were made in 

south Atlantic coast and eastern Gulf of Mexico drainage basins 

during 1911:

Miscellaneous measurements in south Atlantic coast and eastern Gulf of Meorico drainage

basins in 1911.

Date.

July 29

Dec. 10

Oct. 4

4

26

7 

7

Stream.

.....do............

Beech Creek......

.....do............

Allatoona Creek. . .

Etowah River. . . . 

.....do............

Tributary to 

.....do............

River. 

.....do............

Alabama River. . . 

.....do............

Locality.

Weldon, N. C............... ........

Young's Mills, about 5 miles north

of La Grange, Ga.

mile east of Allatoona, Ga. 

Milford Shoals, about 1 mile above 

the regular gaging station at Ball 

Ground, Ga. 

.....do...............................

height.

Feet. 

3.28

10.56

.37 

.47

Discharge.

Sec.-ft. 

8.76

3,440

2.9

2.7

14

183

186

SUMMARY OF DISCHARGE PER SQUARE MILE.

The following summary of discharge per square mile is given to 

allow ready comparison of relative rates of run-off from different areas 

in the south Atlantic coast and eastern Gulf of Mexico drainage 

basins. It shows in a general way the seasonal distribution of run-off 

and the effect of snow, ground, surface, and artificial storage. But 

the most important fact worth noting is the almost entire lack of 

uniformity or agreement between any two stations. It indicates 

that the discharge of each stream is a law unto itself and that all 

projects dependent upon stream flow, if they are to be developed 

along the safest and most economical lines, must be based on records 

of stream flow collected with great care over a long series of years as 

near the location of the project under consideration as possible.
SUMMARY OF DISCHARGE. 85

Summary of discharge, in second-feet per square mile, of south, Atlantic coast and eastern 

Oulfof Mexico drainage basins for 1911,

Drainage

area 

(square 

miles).

James River at Buchanan,Va...........

James River at Cartersville.Va.............

Roanoke River at Roanoke, Va.............

Yadkin River near Salisbury, N. C.........

Tallulah River at Tallulah Falls, Ga.......

Broad River (of Georgia) near Carlton, Ga.

Ocmulgee River near 

Jackson, Ga..........

Ocmulgee River at Macon, Ga..............

Oconee River near 

Greensboro, Ga......

Oconee River at Eraleys Ferry, near Milledgeville, Ga........

Oconee River at Dublin,Ga...............

Chattahoochee River 

near Norcross, Ga....

Flint River near Woodbury, Ga.............

Flint River near Culloden, Ga............

Flint River near Montezuma, Ga..........

Flint River at Albany,

Flint" "River "at" Bain"

bridge, Ga...........

Pea River at Pera, Ala. 

Conecuh River at Beck,

Ala..................

Oostanaula River at

Resaca, Ga...........

Coosa River at Riverside, Ala.............

Alabama River at Selma, Ala..............

Etowah River near Bail

Ground, Ga..........

Etowah River near

Rome, Ga............

Amicalola River near

Potts Mountain, Ga.. 

Tallapoosa River at

Sturdevant,Ala......

Tombigbee River at

Columbus, Miss......

Tombigbee River at

Epes, Ala............

Black Warrior River

near Cordova, Ala.... 

Pearl River at Jackson,

Miss.................

2,0602.38

6,2301.73

3881.32

3,400

1912.97

7621.23

1,400

2,420

1,100

2,840

4,180

1,1701.71

1,090

2,000

.487

.566

,813

.804

1.52

1.33

1.05

2.30

1.13

.864

.657

.885

.768

.732

1.26

2.13

1.25

1.70

2.10

1.05

3.75

2.17

2.53

5.97

2.14

0.6310.427 a 317 0.343 0.519 1.13

.7931.32

.5951.06

.7461.66

.7111.19

.7031.26

1.23 3.09

9451.03

.974

.954

.no

2,700

5,000

7,410

1,1801.26

1,2901.22

1,6102.41

7,0601.88

15,4001.84

4661.86

1,8001.52

802.56

2,4601.87

4,4401.69

8,8301.47

1,9002.93

3,1202.01

.7431.17

.7221.06

.794

.634

.753

.714

2.27

1.56

1.51

1.31

1.11

1.79

1.54

1.59

1.27

2.89

1.11

.610

.544

.910

.765

.7071.27

.6532.22

1.33

1.02

3.55

3.44

.9352.56

1.34 3.80

.9503.23

1.79 6.50

.9672.17

1.20 5.81

.8513.17

.591

.559

2.93

.881

.598

.504

.667

.535

.455

1.45

.542

.528

.526

.513

.730 

1.22 

.878 

1.10 

1.59 

.93! 

2.56 

.948 

.856 

.948

.368

.513

.279

.492

.242

.276

.549

.284

. 7561

.549

L.28

a 9131.17 

8331.34

5461.38

9351.44

1.73

.317

.307

1.51

.616

1.55

.9661

4241.40

.384

.380

.824

.742

9661.13

.301

.364

.328

.432

.275

.340

.777

.499

.566

.543

.559

.528

.373

.457

.814

.865

9681.11

6441.07

1.75 1.78

5491.32

1.45 5.79

.3082.48

.209

.205

.281

.135

.624

.422

.522

.850

.711

1.35

.758

1.02

.740

.774

.549

.381

.436

.519

.904

.766

.981

.806

1.68

.460

.429

.446

1.35

.13

.273

1.92

1.21

2.09

1.28

.2551

.411

.335

.443

.9641.24

..02

.9451.35

3.00

2.32

1.72

9921.62

.9821.05

.7611.08

7021.26 1.52

1.95

1.74

2.21

1.97

.252

.240

.347

.372

.424

.214

.247

.306

.326

.382

.377

.590

.574

.476

.445

.257

.207

.708

.568

.426

8171.49

6551.44

8041.42

6441.91

.563

.3411.45

.253 .775

8951.79

7931.78

7271.42

6821.56

4631.02

.10

.329

.138

.161

.139

.124

2.09

.345

.086

.109

.274

.037

1.60

1.19

2.11

1.88

1.22

2.68

9351.38

1713.02

2392.39

1984.67

0581.15

1.27

.944

.933

2.45

1.27

.843

.744

1.05

.861

1.44

.759

.759

.726

.650

1.37

1.21

1.09

1.56

1.18

2.36

1.11

1.32

.990

1.68

.747
INDEX.

A.

Page.

Accuracy of descriptions and measurements. 12-13 

Acknowledgments to those aiding........... 13

Alabama River at 

Selma, Ala.:

description.......................... 63

discharge, daily..................... 64

discharge, monthly.................. 65

discharge per square mile............ 85

gage height.......................... 64

Alaga, Ala.,

Chattahoochee River at:

description.......................... 43

gage height.......................... 44

Albany, Ga.,

Flint River at:

description.......................... 50

discharge,daily...................... 50,51

discharge, monthly.................. 52

gage height.......................... 51

Allatoona Creek near 

Allatoona, Ga.:

discharge............................ 84

Altamaha River basin, stream flow in....... 31-tt)

Amicalola River nearPotts Mountain, Ga.:

description.......................... 69

discharge,daily................... 69,70-71

discharge, monthly.................. 71

gage height.......................... 70

Apalachicola River basin, stream flow in.... 4frn54

Authority for the work...................... 5-6

B.

Bainbridge, Ga., 

Flint River at:

description.......................... 52

discharge, daily...................... 53

discharge, monthly.................. 54

gage height.......................... 53

Ball Ground, Ga., 

E towa River near:

description.......................... 65

discharge, daily...................... 65,66

discharge, monthly.................. 67

gage height.......................... 66

Batchelder, C. L., work of................... 13

Beck, Ala.,

Conecuh River at:

description.......................... 57

discharge, daily...................... 57,58

discharge, monthly.................. 59

gage height.......................... 58

Beech Creek at 

Youngs Mills:

discharge............................ 84

Black Warrior River near 

Cordova, Ala.:

description.......................... 78

discharge, daily................... 78,79-80

Black Warrior River near 

Cordova, Ala. Continued. Page. 

discharge, monthly.................. 81

discharge per square mile............ 85

gage height.......................... 78

Bolster,R. H.,workof...................... 13

Broad River (of Georgia) near 

Carlton, Ga.:

description.......................... 29

discharge, daily...................... 30

discharge, monthly.................. 30

discharge per square mile............ 85

gage height.......................... 29

Buchanan, Va., 

James River at:

description.......................... 14

discharge, daily..................... 15

discharge, monthly.................. 15

gage height.......................... 14

C. 

Carlton, Ga.,

Broad River (of Georgia) near:

description.......................

discharge, daily...................

discharge, monthly...............

29

30

30

29

Chattahoochee River at or near 

Alaga, Ala.:

description...............

Norcross, Ga.:

description...............

discharge, dafly...........

discharge, monthly.......

discharge per square mile.

West Point, Ga.: 

description......

discharge, dafly.

Cheraw, S. C.,

Peedee River at: 

description..... 

discharge, dafly.

Choctawhatchee River nearNewton, Ala.:

description............

discharge, dafly........

Choctawhatcheo River basin, stream flow

44

40-41

41,42

42

85

41

43

43

43

24 

25-26

25

54

54

55

54-57

Columbus, Miss.,

Tombigbee River at: 

description.........

discharge, dafly.....

discharge, monthly.

74

74,75

75

74

87
88 INDEX.

Conecuh River at 

Beck, Ala.: Page, 

description.......................... 57

discharge, dafly...................... 57,58

discharge, monthly.................. 59

discharge per square mfle............ 85

gage height.......................... 58

Coosa River at 

Riverside, Ala.:

description.......................... 61

discharge, daily..................... 62

discharge, monthly.................. 63

discharge per square mile............ 85

Cordova, Ala.,

Black Warrior Eiver near:

description.......................... 78

discharge, dafly................... 78,79-80

discharge, monthly.................. 81

gage height.......................... 78

Culloden, Ga.,

Mint Eiver near:

description.......................... 46

discharge, dafly...................... 46,47

discharge, monthly.................. 47

gage height.......................... 47

Current meters, plate showing............... 13

D. 

Dean, H.J., work of........................ 13

Definitions of terms......................... 8-9

Discharge per square mfle, summary of...... 84-85

Dublin, Ga.,

Oconee Eiver at:

description.......................... 38-39

discharge, dafly...................... 39,40

discharge, monthly.................. 40

gage height.......................... 39

np

Epes, Ga.,

Tombigbee Eiver at:

description.......................... 76

discharge,dafly...................... 76,77

discharge, monthly.................. 77

gage height.......................... 76

Equivalents, list of.......................... 9-10

Escambia River basin, stream flow in....... 57-59

Etowah Eiver at or near 

Ball Ground, Ga.:

description.......................... 65

discharge,daily...................... 65,66

discharge, monthly.................. 67

discharge per square mile............ 85

gage height.......................... 66

Rome, Ga.:

description.......................... 67

discharge, daily...................... 68

discharge, monthly.................. 69

discharge per square mile............ 85

gage height.......................... 68

Milford Shoals, Ga.:

discharge............................ 84

gage height.......................... 84

F.

Flint Eiver at or nearAlbany, Ga.:

description.......................... 50

discharge, daily...................... 50,51

Flint River at or nearAlbany, Ga. Continued. Page, 

discharge, monthly.................. 52

discharge per square mile............ 85

gage height.......................... 51

Bainbridge, Ga.:

description.......................... 52

discharge, daily...................... 53

discharge, monthly.................. 54

discharge per square mile............ 85

gage height.......................... 53

Culloden, Ga.:

description.......................... 46

discharge,daily...................... 46,47

discharge, monthly.................. 47

discharge per square mile............ 85

gage height.......................... 47

Montezuma, Ga.:

discharge,daily...................... 48,49

discharge, monthly.................. 49

discharge per square mile............ 85

Woodbury, Ga.:

.................. 44

discharge, daily...................... 45

discharge, monthly.................. 46

discharge per square mile............ 85

gage height.......................... 45

Fraleys Ferry, near-Milledgeville, Ga., 

Oconee River at:

description.......................... 37

discharge, daily...................... 38

discharge, monthly.................. 38

.................. 37

G.

Gaging stations, typical, plate showing...... 12

Greensboro, Ga.,

Oconee Eiver near:

description.......................... 35

discharge,daily...................... 35,36

discharge, monthly.................. 36

gage height.......................... 35

H. 

Hall, M.E., work of......................... 13

Holcomb Eock, Va., 

James Eiver at:

description.......................... 15-16

gage height.......................... 16

J. 

Jackson, H.J., work of...................... 13

Jackson, Ga.,

Ocmulgee Eiver near:

description.......................... 31

discharge, daily...................... 32

discharge, monthly.................. 32

gage height.......................... 31

Jackson, Miss., 

Pearl River at:

description.......................... 82

discharge,daily...................... 82,83

discharge, monthly.................. 83

gage height.......................... 82

James Elver at 

Buchanan, Va.:

description.......................... 14

discharge, daily...................... 15
INDEX. 89

James River at 

Buchanan, Va. Continued. Page, 

discharge, monthly.................. 15

discharge per square mile............ 85

gage height.......................... 14

Cartersville, Va.:

description.......................... 16

discharge, daily...................... 17

discharge, monthly.................. 18

discharge per square mile............ 85

gage height.......................... 17

Holcomb Hock, Va.:

description.......................... 15-16

gage height.......................... 16

James River basin, stream flow in........... 14-18

K. 

King,W. R.jworkof........................ 13

M. 

Macon, Ga.,

Ocmulgee River at:

description.......................... 32-33

discharge, daily..................... 33,34

discharge, monthly.................. 34

gage height.......................... 33

Matters, J. G.,workof...................... 13

Measurements, accuracy of.................. 12-13

explanation of........................... 10-12

Mobile River basin, stream flow in.......... 59-81

Montezuma, Oa., 

Flint River near:

description.......................... 48

discharge,daily..................... 48,49

discharge, monthly.................. 49

gage height.......................... 48

N. 

Newton, Ala.,

Choctawhatchee River near:

description.......................... 54

discharge, daily..................... 54

gage height.......................... 55

Norcross, Ga.,

Chattahoochee River near:

description.......................... 40-41

discharge, daily..................... 41,42

discharge, monthly.................. 42

gage height.......................... 41

O.

Old Qaston, N. C., 

Roanoke River at:

description.......................... 20-21

discharge, daily..................... 21

gage height.......................... 21

Ocmulgee River at or near 

Jackson, Ga.:

description.......................... 31

discharge, daily..................... 32

discharge, monthly.................. 32

discharge per square mile............ 85

gage height.......................... 31

Macon, Ga.:

description.......................... 32-33

discharge,daily..................... 33,34

discharge, monthly.................. 34

discharge per square mile............ 85

gage height......................".... 33

Oconee River at or nearDublin, Ga.:

description.......................... 38-39

discharge,daily..................... 39,40

Oconee River at or nearDublin, Ga. Continued. Page, 

discharge, monthly.................. 40

discharge per square mile............ 85

gageheight.......................... 39

Fraleys Ferry, near Mllledgeville, Ga.:

description.......................... 37

discharge, daily..................... 38

discharge, monthly.................. 38

discharge per square mile............ 85

gage hejght.......................... 37

Greensboro, Ga.:

description.......................... 35

discharge, daily..................... 35,36

discharge, monthly.................. 36

discharge per square mil*............ 85

gage height.......................... 35

Oostanaula River at 

Resaca, Ga.:

description.......................... 59

discharge, daily...................... 60

discharge, monthly.................. 61

discharge per square mile............ 85

gage height.......................... 60

P.

Pea River at 

Pera, Ala.:

description.......................... 55

discharge,daily*.................... 55,56

discharge, monthly.................. 57

discharge per square mile............ 85

gage height.......................... 56

Pearl River at 

Jackson, Miss.:

description.......................... 82

discharge,daily..................... 82,83

discharge, monthly.................. 83

discharge per squa. mile............ 85

gage height.......................... 82

Pearl River basin, stream flow in............ 82-83

Peedee, N. C.,

YadMn River near:

description.......................... 23

discharge,daily..................... 23,24

gage height.......................... 23

Peedee River at 

Cheraw, S. C.:

description.......................... 24

discharge,daily..................... 25-26

gageheight........................ . 25

Pera, Ala.,

Pea River at:

description.......................... 55

discharge,daily..................... 55,56

discharge, monthly.................. 57

gage height.......................... 56

Pierce, C. H., work of....................... 13

Potts Mountain, Ga., 

Amicalola River near:

description.......................... 69

discharge,daily.................. 69,70-71

discharge, monthly.................. 71

gageheight.......................... 70

Precipitation in United States, mean annual,

mapshowing.................... 12

Price current meters, plate showing......... 13

Publications, lists of......................... 5,7,8
90 INDEX.

R. 

Resaca, Ga.,

Oostanaula River at: Page, 

description.......................... 59

discharge, daily..................... 60

discharge, monthly.................. 61

gage height.......................... 60

Riverside, Ala., 

Coosa River at:

description.......................... 61

discharge, daily..................... 62

discharge, monthly.................. 63

Roanoke, Va.,

Roanoke River at:

description.......................... 18

discharge, daily..................... 19

discharge, monthly.................. 20

gage height.......................... 19

Roanoke River at 

OldGaston,N. C.:

description.......................... 20-21

discharge, daily..................... 21

gage height.......................... 21

Randolph, Va.:

discharge............................ 84

gage height.......................... 84

Roanoke, Va.:

description.......................... 18

discharge, daily..................... 19

discharge, monthly.................. 20

\discharge per square mfle............ 85

gageheight.......................... 19

Weldon,N.C.:

discharge............................ 84

gageheight.......................... 84

Roanoke River basin, stream flow in........ 18-21

Robertson, R. E., work of................... 13

Rome, Ga.,

Etowah River near:

description.......................... 67

discharge, daily..................... 68

discharge, monthly.................. 69

Run-off in United States, mean annual, map

showing......................... 12

S. 

Salisbury, N. C.,

Yadkin River near:

description.......................... 21

discharge, dally..................... 22

discharge, monthly.................. 22

gage height.......................... 22

Savannah River basin, stream flow in....... 27-30

Selma, Ala.,

Alabama River at:

description.......................... 63

discharge, daily..................... 64

discharge, monthly.................. 65

gage height.......................... 64

Sturdevant, Ala.,

Tallapoosa River at:

description.......................... 72

discharge, daily..................... 72

discharge, monthly.................. 73

....................... 72

T.

Tallapoosa River at 

Sturdevant, Ala.: Page, 

description.......................... 72

discharge, daily..................... 73

discharge, monthly.................. 73

discharge per square mile............ 85

gage height.......................... 72

Tallulah Falls, Ga., 

Tallulah River at:

description.......................... 27

discharge,daily..................... 27,28

discharge, monthly.................. 28

gage height.......................... 27

Tallulah River at 

Tallulah Falls, Ga.:

description.......................... 27

discharge, daily..................... 27,28

discharge, monthly.................. 28

discharge per square mile............ 85

gage height.......................... 27

Terms, definitions of........................ 8-9

Tombigbee River at 

Columbus, Miss.:

description.......................... 74

discharge, daily..................... 74,75

discharge, monthly.................. 75

discharge per square mile............ 85

gage height.......................... 74

Epes, Ala.:

description.......................... 76

discharge, daily..................... 76,77

discharge, monthly.................. 77

discharge per square mile............ 85

gageheight.......................... 76

Tuttlfi, A. H., work of....................... 13

W.

Wallace, G. A., work of..................... 13

Walters, M. I., work of...................... 13

West Point, Ga. 

Chattahoochee River at:

description.......................... 43

discharge, dally..................... 43

gageheight.......................... 43

Wood, B. D., work of....................... 13

Woodbury, Ga. 

Flint River, near:

description.......................... 44

discharge, daily..................... 45

discharge, monthly.................. 46

gage height.......................... 45

Work, division of............................ 13

Y.

Yadkin River near 

Peedee, N. C.:

description.......................... 23

discharge,daily..................... 23,24

gageheight.......................... 23

Salisbury, N. C.:

description.......................... 21

discharge,daily..................... 22

discharge, monthly.................. 22

discharge per square mile............ 85

gage height.......................... 22

Yadkin or Peedee River basin, stream flow in. 21-26

o