This copy is PUBLIC PROPERTY and is not to 

be removed from the official files.PRIVATE 

POSSESSION IS UNLAWFUL (R. S. Sup. Vol. 2, PP: 380, 

Sec. 749) 

137922 

/.ei_SUP 1,-ek 

\zo 1118, 195() -
Surface Water Supply 

of the United States 

1948 

Part 8. Western Gulf of Mexico Basins 

Prepared under the direction of C. G. PAULSEN, Chief Hydraulic Engineer 

GEOLOGICAL SURVEY WATER—SUPPLY PAPER 1118 

Prepared in cooperation with the States 

of Colorado, Louisiana, New Mexico, 

and Texas and other agencies 

GLOLL:.1-AL 

• 

137422 

This copy is PUBLIC PROPERTY and is not to 

be removed from the official files. PRIVATE 

POSSESSION IS UNLAWFUL (R s. Sup. Vol. 2. pp. 380: 

Sec. 749) 

UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON : 1950 
' - \ 

G L., 

it 

.,<, 0.- >-

UNITED STATES DEPARTMENT OF THE INTERIOR 

Oscar L. Chapman, Secretary 

GEOLOGICAL SURVEY 

W. E. Wrather, Director 

For sale by the Superintendent of Documents, U. S. Government Printing Office 

Washington 25, D. C. - Price $1.00 cents (paper cover) 
PREFACE 

This report was prepared by the Geological Survey in cooperation 

with the States of Colorado, Louisiana, New Mexico, and Texas and 

other agencies, by personnel of the Water Resources Division under 

the direction of : 

C. G. Paulsen Chief Hydraulic Engineer 

J. V. B. Wells Chief, Surface Water Branch 

B. J. Peterson Chief, Annual Reports Section 

District Engineers (Surface Water) 

W. R. Eaton (succeeded by Fay Hansen) Baton Rouge, La. 

. C. E. Ellsworth Austin, Tex. 

Robert Follansbee (succeeded by F. M. Bell) Denver, Colo. 

Berkeley Johnson Santa Fe, N. Mex. 

III 

CONTENTS 

Pare 

Scope of work 

Definition of terms 

Explanation of data 2 

Calcasieu River Basin 

Calcasieu River near Glenmora, La 

Calcasieu River near Oberlin, La 

Calcasieu River near Kinder, La 

Whiskey Chitto Creek near Oberlin, La 

Bundick Creek near Dry Creek, La 

Accuracy of field data and computed results 5 

Publications 6 Records of discharge collected by agencies other than the Jeolorlc•: S rvey 12 

Cooperation , 13 Division of work 14 Gaging-station records 15 Mermentau River Basin 15 Bayou Nezpique near Basile, La 15 Payou des Cannes near Eunice, La 16 

Beckwith Creek near De Quincy, La 23 

Hickory Branch at Kernan, La 24 

Sabine River Basin 25 Sabine River near Mineola, To , 25 Sabine River near Giadewater, Tex 26 

Sabine River near Tatum, Tex 27 

Sabine River at Logansport, La 28 

Sabine River near Milam, Tex 29 Sabine River near Eon Weir, Tex 30 Sabine River near Ruliff, Tex 31 Lake Fork Sabine River near Quitman, Tex 32 

Big Sandy Creek near Big Sandy, Tex 33 

Cherokee Bayou near Elderville, Tex 34 

Neches River Basin 35 

Neches River near Neches, Tex 35 

Neches River near Alto, Tex 36 

Neches River near Diboll, Tex 37 

Neches River near Rockland, Tex 38 

Neches River at Evadale, Tex 39 

Mud Creek near •'acksonville, Tex 40 

Angelina River near Alto, Tex 41 

Angelina River near Lufkin, Tex 42 

Angelina River at HorFer, Tex 43 Striker Creek near Str-rerfield, Tex 44 

Attoyac Bayou near Chireno, Tex 45 

Village Creek near Kountze, Tex 46 

Trinity River Basin 47 

Bridgeport Reservoir above Bridgeport, Tex 47 

West Fork Trinity River near Boyd, Tex 48 

Eagle Mountain Reservoir above Fort Worth, Tex 49 

West Fork Trinity River at Fort Worth, Tex 50 

West Fork Tririty River at Grand Prairie, Tex 51 

Trinity River at Dallas, Tex 52 

Trinity River near Rosser, Tex 53 

Trinity River near Oakwood, Tex 54 Trinity River near Midway, Tex 55 Trinity River at Riverside, Tex 56 

Trinity River at Romayor, Tex 57 

Trinity River at Liberty, Tex 58 

Big Sandy Creek near Bridgeport, Tex 59 Clear Fork Trinity River near Aledo, Tex 61 

Clear Fork Trinity River near Renbrook, Tex 62 

Clear Fork Trinity River at Fort Worth, 7— 63 

Lake Dallas near Lake Dallas, Tex 64 

Elm Fork Trinity River near Carrollton, Tex 65 

Denton Creek near Roanoke, Tex 66 

Denton Creek near Grapevine, Tex 67 

East Fork Trinity River near Rockwall, Tex 68 

Cedar Creek near Mabank, Tex 69 

Chambers Creek near Corsicana, Tex 70 

Richland Creek near Richland, Tex 71 

San Jacinto River Basin 72 

West Fork San Jacinto River near Conroe, Tex 72 

West Fork San Jacinto River near Humble, Tex 73 

San Jacinto River near Huffran, Tex 74 

Spring Creek near Spring, Tex 75 

Cypress Creek near Westfield, Tex 76 

East Fork San Jacinto River near Cleveland, Tee 77 

Peach Creek at Splendora, Tex 78 

Caney Creek near Splendors, Tex 79 
80 

90 

 100 

 110 

 120 

 130 

 140 

 150 

 160 

VI CONTENTS 

Gaging-station records--Continued. San Jacinto River Basin--Continued. Page Barker Reservoir near Addicks, Tex 

Buffalo Bayou near Addicks, Tex 81 Buffalo Bayou at Houston, Tex 82 Addicks Reservoir near Addicks, Tex 63 Whiteoak Bayou at Houston, Tex 64 Brays Bayou at Houston, Tex 85 Clear Creek Basin 86 Clear Creek near Pearland, Tex 86 Hickory Slough near Pearland, Tex 87 

Chocolate Bayou Basin 89 Chocolate Bayou near Alvin, Tex 88 Oyster Creek Basin 89 Oyster Creek near Angleton, Tex 89 Brazos River Basin Double Mountain Fork Brazos River at Lubbock, Tex 90 Double Mountain Fork Brkzos River near Aspermont, Tex 90 Brazos River at Seymour, Tex 91 Brazos River near South Bend, Tex 92 Possum KingAom Reservoir near Graforl, Tex 93 Brazos River near Palo Pinto, Tex 94 Brazos River near Glen Rose, Tex 95 Brazos River near Whitney, Tex 96 Brazos River at Waco, Tex G7 Brazos River near Marlin, Tex 99 Brazos River near Bryan, Tex 99 Brazos River near Hempstead, Tex 

Brazos River near San Felipe, Tex '01 Brazos River at Richmond, Tex 102 Brazos River at East Columbia, Tex 103 Salt Fork Brazos River near Aspermont, Tex 'n4 White River at Plainview, Tex 

Clear Fork Brazos River at Nugent, Tex 

Clear Fork Brazos River at Fort Griffin, Tex 

Clear Fork Brazos River near Crystal Falls, Tex '09 Fort Phantom Hill Reservoir near Nugent, Tex 109 Paluxy Creek at Glen Rose, Tex 

Nolands River at Blum, Tex 111 Aquilla Creek near Aquilla, Tex 112 North Bosque River near Clifton, Tex 11 F Leon River near Hasse, Tex 114 Leon River near Belton, Tex 115 Little River at Cameron, Tex 116 Lampasas River at Youngsport, Tex 117 San Gabriel River at Georgetown, Tex 118 Yegua Creek near Somerville, Tex 119 Navasota River near Easterly, Tex 

American Canal Co.'s canal near Fulshear, Tex 121 Richmond Irrigation Co.'s canal near Richmond, Tex 121 Dry Creek near Richmond, Tex 122 Big Creek near Needville, Tex 124 Big Creek near Guy, Tex , 125 Fairchild Creek near Needville, Tex 126 Colorado River Basin 127 Colorado River near Ira, Tex 127 Colorado River at Colorado City, Tex 128 Colorado River at Robert Lee, Tex 129 Colorado River at Ballinger, Tex 

Colorado River at Winchell, Tex 131 Colorado River near San Saba, Tex 132 Buchanan Reservoir near Burnet, Tex 133 Marshall Ford Reservoir near Austin, Tex 133 Colorado River at Austin, Tex 134 Colorado River at Smithville, Tex 135 Colorado River at La Grange, Tex 136 Colorado River at Columbus, Tex 137 Colorado River at Wharton, Tex 138 Colorado River near Bay City, Tex 139 Bull Creek near Ira, Tex 

Morgan Creek near Colorado City, Tex 141 Champlin Creek near Colorado City, Tex 143 Elm Creek at Ballinger, Tex 144 South Concho River at Christoval, Tex 145 Lake Nasworthy near San Angelo, Tex 146 South Concho River at San Angelo, Tex 147 Concho River rear San Angelo, Tex 148 Concho River near Paint Rock, Tex 149 South Concho Irrigation Co.'s canal at Christoval, Tex 

Middle Concho River near Tankersly, Tex 151 Spring Creek near Tankersly, Tex 152 Dove Creek near Knickerbocker, Tex 153 Dove Creek Spring near Knickerbocker, Tex 153 North Concho River at Sterling City, Tex 154 North Concho River near Carlsbad, Tex 155 North Concho River near San Angelo, Tex 156 Brownwood Reservoir near Brownwood, Tex 157 Pecan Bayou at Brownwood, Tex 
CONTENTS VII 

Gaging-station records—Continued. Colorado River Basin--Continued. Page 

Hords Creek Reservoir near Valera, Tex 161 

San Saba River at Menard, Tex 162 

San Saba River at San Saba, Tex 163 

Noyes Canal at Menard, Tex 164 

Brady Creek at Brady, Tex 165 

North Llano River near Junction, Tex 166 

Llano River near Junction, Tex 167 

Llano River at Llano, Tex 168 

Pedernales River near Johnson City, Tex 169 

Barton Springs at Austin, Tex 169 

Dry Creek at Buescher Lake, near Smithville, Tex 170 

Lavaca River Basin 171 

Lavaca River at Hallettsville, Tex 171 

Lavaca River near Edna, Tex 172 

Lavaca River seepage investigations 173 

Navidad River near Ganado, Tex 174 

Guadalupe River Basin 175 

Guadalupe River at Hunt, Tex 175 

Guadalupe River at Comfort, Tex 176 

Guadalupe River near Spring Branch, Tex 177 

Guadalupe River above Gomel River, at New Braunfels, Tex 178 

Guadalupe River at Victoria, Tex 179 

Johnson Creek near Ingram, Tex 180 

Comal River at New Braunfels, Tex 181 

San Marcos River at Luling, Tex 182 

Blanco River at Wimberley, Tex 183 

Plum Creek near Luling, Tex 184 

Coleto Creek near Victoria, Tex 185 

San Antonio River at San Antonio, Tex 186 

San Antonio River near Falls City, Tex 187 

San Antonio River at Goliad, Tex 188 

Medina Lake near San Antonio, Tex 189 

Medina River near San Antonio, Tex 197 

Cibolo Creek near Bulverde, Tex 198 

Cibolo Creek above Bracken, Tex 198 

Cibolo Creek at Selma, Tex 199 

Cibolo Creek near Falls City, Tex 200 

Mission River Basin 201 

Mission River at Refuglo, Tex 201 

Nueces River Basin 202 

Nueces River at Laguna, Tex 202 

Nueces River below Uvalde, Tex 203 

Nueces River near Asherton, Tex 204 

Nueces River at Cotulla, Tex 206 

Nueces River near Tilden, Tex 207 

Nueces River near Three Rivers, Tex 208 

Nueces River near Mathis, Tex 209 

Nueces River seepage investigation 210 

Nueces River at Calallen, Tex 211 

West Nueces River near Brackettville, Tex 212 

Frio River at Concan, Tex 213 

Frio River near Derby, Tex 214 

Frio River at Calliham, Tex 215 

Satinal River near Sabinal, Tex 216 

Leona River spring floe, near Uvalde, Tex 217 

Atascosa River at Whitsett, Tex 218 

Rio Grande Basin 219 

Rio Grande at Thirtymile Bridge, near ,:reede, Colo 219 

Rio Grande at Wason, below Creede, Colo 220 

Rio Grande near Del Norte, Colo 221 

Rio Grande near Monte Vista, Colo 222 

Rio Grande at Alamosa, Colo 223 

Rio Grande above mouth of Trinchera Creek, near La Sauses, Colo 224 

Rio Grande near Lobatos, Colo 225 

Rio Grande near Cerro, N. Mex 226 

Rio Grande below Taos Junction Bridge, near Taos, N. Mex 227 

Rio Grande at Embudo, N. Mex 228 

Rio Grande at Otowi Bridge, near San ll'-fonso, N. Mex 229 

Rio Grande at Cochiti, N. Mex 230 

Rio Grande at San Felipe, N. Mex 231 

Rio Grande near Bernalillo, N. Mex 232 

Rio Grande near Belen, N. Mex 

Rio Grande at Albuquerque, N. Mex 233 

234 

Rio Grande at San Acacia, N. Mex 

Rio Grande near Bernardo, N. Mex 235 

236 

Rio Grande at San Marcial, N. Mex 237 

Rio Grande below Elephant Butte Dam, N. Mex 238 

239 

Reservoirs in Rio Grande Basin 

Rio Grande below Cabello Dam, N. Mex 240 

Transmountain diversions from Colorado River Basin to Rio Grande Basin 244 

Clear Creek below Continental Reservoir, Colo 245 

South Fork Rio Grande at South Fork, Colo 

Goose Creek near Wagon Wheel Gap, Colo 246 

247 

Rock Creek near Monte Vista, Colo 

Pinos Creek near Del Norte, Colo 248 

249 

Kerber Creek at Ashley Ranch, near Villa Grove, Colo 

Closed basin in San Luis Valley, Colo 250 

250 
 255 

 260 

 265 

 270 

 275 

 280 

 285 

 290 

 295 

 300 

 305 

 310 

 315 

 320 

 325 

 330 

VIII CONTENTS 

Gaging-station records--Ccntinued. Rio Grande Basin--Continued. Closed basin in San Luis Valley, Colo.--Continued. Page 

Saguache Creek near Saguache, Colo 251 

Alamosa Creek above Terrace Reservoir, Colo 

Trinchera Creek below Smith Reservoir, near Blanca, Colo 

Conejos River near La Sauses, Colo 

Culebra Creek below San Luls, Colc 

Casias Creek near Costilla, N. Mex 

Red River near Questa, N. Mex 

Rio Pueblo de Taos near Taos, N. Mex 

Rio Chama at Park View, N. Mex 

El Rito Creek near El Rito, N. Mex 

Principal diversions from Nambe Creek, N. Mex 

Tijeras Creek near Albuquerque, N. Mex 

North Crestone Creek near Crestone, Colo 252 

Carnero Creek near La Garita, Colo 253 

La Garita Creek near La Garita, Colo 254 

Alamosa Creek below Terrace Reservoir, Colo 256 

La Jara Creek at Gallegos Ranch, near Capulin, Colo 257 

Trinchera Creek above Turners Ranch, near Fort Garland, Colo 258 Trinchera Creek above Mountain Home Reservoir, near Fort Garland, Colo 259 

Sangre de Cristo Creek near Fort Garland, Colo 261 

Ute Creek near Fort Garland, Colo 262 Conejos River at Platoro, Colo 263 Conejcs River near Mogote, Colo 264 

San Antonio River at Ortiz, Colo 266 San Antonio River at mouth, near Manassa, Colo 267 Los PIncs River near Ortiz, Colo 268 Culebra Creek at San Luis, Colo 269 

Costilla Creek above reservoir, near Costilla, . Mex 271 

Costilla Creek below reservoir, near i;ostilla, N. Mex 272 Costilla Creek near Costilla, N. Mex 273 Costilla Creek at Garcia, Colo 274 

Santistevan Creek near Costilla, N. Mex 276 Principal diversions fr'm Costilla Creek, N. Mex. and Colo 277 Latir Creek near Cerro, N. Mex 278 Red River near Red River, N. Mex 279 

Cabresto Creek near Questa, N. Mex 281 Llano ditch near Questa, N. Mex 282 Rio Hondo near Valdez, N. Mex 283 Rio Hondo at Arroyo Hondo, N. Mex 284 

Rio Taos at Los Cordovas, N. Mex 286 Rio Lucero near Arroyo Seco, N. Mex 287 Principal diversions from Rio Lucero, N. Mex 288 Embudo Creek at Dixon, N. Mex 289 

Rio Chama below El Vado Dam, N. Mex 291 Rio Chama near Abiquiu, N. Mex 292 Rio Chama near Chamita, N. Mex 293 Willow Creek near Park View, N. Mex 294 

Rio Ojo Caliente at La Madera, N. Mex 296 Rio Santa Cruz at Cundiyo, N. Mex 297 Rio Santa Cruz at Riverside, N. Mex 298 Nambe Creek near Nambe, N. Mex 299 

Rio Tesuque above diversions, near Santa Fe, N. Mex 301 Mitchell ditch near Santa Fe, N. Mex 302 Well ditch at San Ildefonso, N. Mex 302 Santa Fe Creek near Santa Fe, N. Mex 303 Jemez River near Bernalillo, N. Mex 304 

Rio Puerco near Cabezon, N. Mex 306 Rio Puerco at Catezon, N. Mex 307 Rio Puerco at Rio Puerco, N. Mex 308 Rio Puerco near Pernardo, N. Mex 309 Chico Arroyo near Guadalupe, N. Mex 

Socorro main canal north at San Acacia, N. Mex 

Pecos River near Puerto de Luna, N. Mex 

Pecos River below McMillan Dam, N. Mex 

Pecos River at Red Bluff, N. Mex 

Bluewater Creek near Bluewater, N. Mex 311 San Jose River near Grants, N. Mex 312 San Jose River at Correo, N. Mex 313 Rto Salado near San Acacia, N. Mex 314 

Socorro main canal south near San Antonio, N. Mex 315 San Antonio Riverside drain near San Antonio, N. Mex 315 San Antonio Riversiee drain near San Marclal, N. Mex 316 Elmendorf interior drain near San Antonio, N. Mex 316 Pecos River near Pecos, N. Mex 317 Pecos River near Anton Chico, N. Mex 318 Pecos River at Santa Rosa, N. Mex 319 

Pecos River below Alamogordo Dam, N. Mex 321 Pecos River near Acme, N. Mex 322 Pecos River near Lake Arthur, N. Mex 323 Pecos River near Artesia, N. Mex 324 

Pecos River below Major Johnson Springs, near Carlsbad, N. Mex 326 Pecos River at dam site 3, near Carlsbad, N. Mex 327 Pecos River at Carlsbad, N. Mex 328 Pecos River near Malaga, N. Mex 329 

Pecos River near Orla, Tex 331 Pecos River at Pecos, Tex 332 
CONTENTS IX 

Gaging-station records--Continued. 

Rio Grande Basin--Continued. Page Pecos River below Grandfalls, Tex 333 Pecos River near Girvin, Tex 

-Principal diversions from Pecos River between Red Elurf R,servolr and Imperial, 

334 Pecos River near Sheffield, TeY 335 Gallinas River near Montezuma, N. Mex 336 Gallinas River at Montezuma, N. Mex 337 Rio Ruidoso at Hondo, N. Mex 338 Rio Hondo at Diamond A Ranch, near Roswell, N. Mex 339 Rio Bonito at Hondo, N. Mex 340 Rio Felix at old highway bridge, near Hagerman, 341 Cottonwood Creek near Lake Arthur, N. Mex 342 Black River above Malaga, N. Mex 343 Delaware River near Red Bluff, N. Mex 344 Salt (Screwbean) Draw near Orla, Tex 345 

Tex 346 Madera Canyon near Toyahvale, Tex 347 Toyah Creek below Toyah Lake, near Pecos, Tex 348 San Solomon Springs at Toyahvale, Ter, 349 Comanche Springs at Fort Stockton, Tex 350 Devils River near Juno, Tex 351 Las Moras Springs at Brackettville, Tex 351 Mimbres River Basin 352 Mimbres River near Mimbres, N. Mex 352 Mimbres River near Faywood, N. Mex 353 

Bear Canyon near Mimbres, N. Mex 354 

Tularosa Valley 355 Rio Tularosa near Bent, N. Mex 355 

Rio Tularosa near Tularosa, N. Mex 356 

Alamogordo-La Luz ditch at La Luz, N. Mex 357 

Alamogordo water supply near Alamororlo, N. Mex 357 

Miscellaneous discharge measurements 358 

Index 365 

InUSTRATION 

Page 

Figure L Gaging-station structures: A, Sabine River near Gladewa•.er, Tex.: B, Pecos 

River at Red Bluff, N. Mex.; C, Colorado River at San Saba, Ter. - 3 
SURFACE WATER SUPPLY OF WESTERN GULF. OF MEXICO BASINS, 1948 

SCOPE OF WORK 

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

stage and flow made on streams, lakes, and reservoirs in the United States daring the 

water year ending September 30, 1948. The work was begun in 1888 in connection with 

special studies relating to irrigation. Measurements of the flow of streams and of'the 

stage and contents of lakes and reservoirs have been made at about 11,370 gaging stations 

In the 48 States and also at many in the Territories of Alaska and Hawaii. In July 1948, 

5,960 gaging stations, including those in Hawaii, were being maintained by the Geological 

Survey and cooperating organizations. Miscellaneous discharge measurements were made 

during the water year at many other points. 

In the execution of the work many State and private organizations have cooperated, 

either by furnishing data or by assisting in collecting data. Cooperation of the first 

kind is acknowledged in connection with the description of each station affected; cooperation of the second kind is acknowledged, under the heading "Cooperation," in the introductory matter that precedes the gaging-station records in each volume. In the present 

volume, the section on cooperation of the second kind appears on page 13. 

DEFINITION OF TERMS 

The units in which stream-flow data are presented in this report and other terms used 

nerein are defined as follows: 

"Second-feet" is an abbreviation for "cubic feet per second." A second-foot is the 

rate of discharge of a stream whose channel is 1 square foot in cross-sectional area and 

whnse average velocity is 1 foot per second. 

"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 runoff is distributed uniformly both as regards time and area. 

"Runoff in inches" Is the depth to which an area would be covered if all the water 

draining from it in a given period were uniformly distributed on its surface. It is used 

for comparing runoff with rainfall, which is usually expressed in inches. 

An "acre-foot" is the quantity of water required to cover an acre to the depth of 

1 foot and is equivalerit to 43,560 cubic feet. The term is commonly used in connection 

with storage for irrigation. 

"Second-foot-day" is the volume of water represented by a flow of 1 second-foot for 24 

hours. It is equivalent to 86,400 cubic feet, 1.983471 acre-feet, or 646,317 gallons and 

represents a runoff of 0.0372 inch from 1 square mile. 

"Stage-discharge relation" is an abbreviation for the term "relation between gage height 

and discharge." 

"Control" is a term used to designate a feature downstream from the gage that determines the stage-discharge relation at the gage. This feature may be a natural section, 

a reach of the channel, or an artificial structure. 
2 SURFACE WATER SUPPLY, 1948, PART 

"Contents" is a term applied to the volume of water in a reservoir. It is computed on 

the basis of a level pool and does not include bank storage unless otherwise indicated. 

EXPLANATION OF DATA 

The base data collected at gaging stations consist of records of stage, measurements 

of discharge, and general information used to supplement the records of stage and discharge 

measurements in determining the daily flow. The records of stage are obtained either from 

direct readings on a nonrecording gage or from a water-stage recorder that gives a continuous record of the fluctuations. Measurements of discharge are made with a current 

meter by the general methods outlined in standard textbooks on the measurement of river 

discharge. Typical structures in use at gaging stations are shown in figure 1. 

Rating tables giving the discharge for any stage are prepared from the discharge measurements. The application of the daily mean gage height to those rating tables gives the 

daily mean discharge, from which the monthly and the yearly mean discharge are computed. 

If the stage-discharge relation is subject to change because of frequent or continual 

change in the physical features that form the control, the daily mean discharge is determined by the "shifting-control method," in which correction factors based on individual discharge measurements and notes by engineers and observers are used in applying the 

gage heights to the rating tables. At times the stage-discharge relation for a station 

may be temporarily changed by the presence of aquatic growth or debris on the control. 

For such times the daily mean discharge is computed by what is essentially the "shiftingcontrol" method, described above. 

At some gaging stations the stage-discharge relation is affected by backwater from 

reservoirs, tributary streams, or other sources, which necessitates the use of the "slope 

method," in which the slope or fall in a reach of the stream is a factor in the determination of discharge. Information requisite for determining the slope or fall is obtained 

by means of an auxiliary gage set at some distance from the base gage. At some stations 

the stage-discharge relation is affected by changing stage, and for them the rate of 

change of stage is used as a factor in the determination of discharge. 

At most gaging stations in the northern part of the United States and at some in the 

mountainous regions of other parts the stage-discharge relation is affected by ice during 

the winter, which makes it impossible to compute the discharge in the usual manner. Discharge for periods of ice effect is computed on the basis of the gage-height record and 

occasional winter discharge measurements, consideration being given to the available information on temperature and precipitation, notes by gage observers and engineers, and 

comparable records of discharge for stations in the same or nearby basins. For those 

stations at which the stage-discharge relation is affected by ice, the days included in 

the periods of ice effect either are indicated in the table by symbols referring to a 

footnote that states this fact or are given in a general note following the table. The 

days on which discharge measurements were made during or between periods of ice effect, 

shortly before the first period, or shortly after the last period are similarly indicated 

by a footnote. 

For most of the gaging stations on streams in the area covered by this report the data 

presented comprise a description of the station, a table showing the daily discharge of 
Y LVU80 NOIDINVUX2 

A. SABINE RIVER NEAR GLADENVATER, TEX. B. PECOS RIVER AT RED BLUFF, N. MEX. C. COLORADO RIVER NEAR SAN SABA, TEX. 

FIGURE 1.-GAGING-STATION STRUCTURES. 
4 SURFACE WATER SUPPLY, 1948. PART 8 

the stream, and a table of monthly and yearly discharge and runoff. Skeleton rating 

tables are published for all stations except those at which the daily discharge for the 

greater part of the year was determined by the shifting-control method, the slope method, 

or other special methods. 

The description of the station gives the type of gage, location, drainage area, records 

available, average discharge, extremes of discharge, general remarks, and notations of revisions of previously published record. The location of the gaging station and the drainage area are obtained from the most accurate maps available. Under "Average discharge" is 

given the average discharge for the number of years indicated. It is not given for stations having less than 10 complete years of record or for stations where changes in water 

development during the period of record cause the figure to have little significance. 

Under "Extremes" are given the maximum discharge and gage height; the minimum discharge if 

there is little or no regulation; the minimum daily discharge if there is extensive regulation (also the miniMum discharge if useful); and the minimum gage height (unless it 13 

of no importance). Unless otherwise qualified, the maximum discharge corresponds to the 

crest stage, obtained by use of a water-stage recorder or a nonrecording gage read at the 

time of the crest. Information pertaining to the accuracy of the records and conditions 

which affect the natural flow at the gaging station is given under "Remarks." 

For some stations previously published records have been found to be in error on the 

basis of data or information obtained subsequently. Revisions of such records are usually 

published along with the current records in one of the annual reports. In order to make 

it easier to find such revised records, a paragraph headed "Revisions (water years)" has 

been added to the station description of all stations for which revised records have been 

published. Listed therein are all the reports in which revisions appear, each followed by 

the water years for which figures are revised in that report. In listing the report 

number, W. means Water-Supply Paper. In listing the years, water years are indicated by 

only 1 year, for instance, 1933 stands for the water year October 1, 1932, to September 30, 

1933. If there were no daily, monthly, or annual figures of discharge involved in the 

revision, that fact is brought out by notations after the year dates as follows: (M) means 

that only the instantaneous maximum discharge was revised; (m) that only the instantaneous 

minimum was revised; and (P) that only peak discharges were revised. If the drainage area 

has been revised, the report in which the revised figure was first published is given. It 

should be noted that for all stations for which second-feet per square mile and runoff in 

inches are published, a revision of the drainage area necessitates corresponding revision 

of all figures based on the drainage area. Revised figures of second-feet per square mile 

and runoff in inches resulting from a revision of the drainage area only are usually not 

published in the annual series of reports. 

For stations equipped with water-stage recorders, except those on streams subject to 

sudden or rapid fluctuation, the table gives the discharge corresponding to the daily mean 

gage height. For stations subject to such fluctuation the daily mean gage height may not 

indicate the true daily mean discharge, which must be obtained by averaging the discharge 

for parts of the day or by using the discharge integrator, an instrument for obtaining the 

daily mean discharge from a continuous gage-height graph and containing as an essential 

element a curve representing the stage-discharge relation at the station. For stations 

equipped with nonrecording gages, the table of daily discharge gives the discharge 
ACCURACY OF FIELD DATA AND COMPUTED RESULTS 5 

corresponding to either once-daily readings of the gage, the mean of twice-daily readings, 

or the mean gage height determined from gage-height graphs based on gage readings. For 

periods of rapidly changing stage, the daily mean discharge is determined from gage-height 

graphs based on gage readings, the frequency of which is stated in the station description. 

In the table of monthly discharge the column headed "Second-foot-days" gives the sum 

for each month of the figures given in the table of daily discharge. The column headed 

"Maximum" gives the maximum daily discharge, not the momentary discharge when the water 

surface was at crest stage. Likewise, in the column headed "Minimum" the quantity given 

Is the minimum daily discharge. The column headed "Mean" gives the average flow in cubic 

feet per second during the month. 

Peak discharges with the times of their occurrence are listed below the table of monthly 

discharge for most stations. All Independent peaks above the selected base are given. The 

base discharge, which is given in parentheses, is selecte,. so that an average of about 

three peaks a year will be presented. Peak discharges are not published for canals, 

ditches, drains, or for any stream for which the peaks are subject to substantial control 

by man. 

For most gaging stations on lakes and reservoirs the data presented comprise a description of the station and a monthly summary table of stage and contents. For some reservoirs a table showing daily contents or stage is given. A skeleton table of capacity at 

given stages is usually given in the first report in which data for a station are published 

but is omitted from succeeding reports. 

ACCURACY OF FIELD DATA AND COMPUTED RESULTS 

The accuracy of stream-flow data depends primarily on (1) the permanency of the stagedischarge relation or, if the Control is unstable,the frequency of discharge measurements 

and (2) the accuracy of observations of stage, measurements of flow, and interpretation of 

records. 

The station description gives a statement in regard to the general accuracy of the records. "Excellent" indicates that, in general, the error in the daily records is believed 

to be less than 5 percent; "good," less than 10 percent; "fair," less than 15 percent; and 

"poor," probably more than 15 percent. The records of monthly and yearly mean discharge 

and runoff are, in general, more accurate than the daily records. 

Yield at some stations as indicated by monthly means may vary widely from natural yield, 

owing to diversion, consumption, regulation by storage, increase or decrease in evaporation 

due to artificial causes, or other factors. For such stations figures of "second-feet per 

square mile" and "runoff in inches" are not published unless storage or diversion records 

are Included indicating the extent of the regulation or diversion or unless satisfactory 

adjustments can be made for changes in contents or reservoirs or for other changes incident 

to use and control. Evaporation from a reservoir is not included in the adjustments for 

changes In reservoir contents, unless its inclusion is indicated. Even at those stations 

where adjustments are made, in some instances large errors in computed yields may occur 

when relatively large negative adjustments are applied or when evaporation is large in 

comparison with the observed discharge. Figures of second-feet per square mile and runoff 

in inches are also omitted if the drainage area includes large noncontributing areas or if 

the average annual rainfall over the drainage area is less than 20 inches. 
6 SURFACE WATER SUPPLY, 1948, PART 8 

Many gaging stations on streams in the irrigated areas of the United States are situated 

above most of the diversions from those streams, and therefore the discharge recorded does 

not show the water supply available for further development, as prior appropriations below 

the station must first be satisfied. 

The table of monthly discharge presents in summary the distribution of the flow past the 

station. The table of daily discharge affords opportunity for more detailed studies of the 

variation in flow. As further observations in each succeeding year may be expected to 

throw new light on data previously published, it should be borne in mind that such data are 

subject to revision in succeeding water-supply papers. 

PUBLICATIONS 

The results of stream-flow measurements are now published annually in 14 parts, each 

part covering an area whose boundaries coincide with natural drainage features as indicated 

below: 

Part 1. North Atlantic slope basins (St. John River to York River). 

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

River). 3. Ohio River Basin. 

4. St. Lawrence Rivar Basin. 5. Hudson Bay and upper Mississippi River Basins. 

6. Missouri River Basin. 7. Lower Mississippi River Basin. 

8. Western Gulf of Mexico basins. 9. Colorado River Basin. 

10. The Great Basin. 11. Pacific slope basins in California. 12. Pacific slope basins in Washington and upper Columbia River Basin. 

13. Snake River Basin. 14. Pacific slope basins in Oregon and lower Columbia River Basin. 

Water-supply papers and other publications of the Geological Survey containing data on 

the water resources of the United States may be obtained or consulted as explained below. 

1. Copies may be purchased at nominal cost from the Superintendent of. Documents, Government Printing Office, Washington, D. C., who will, on application, furnish lists giving 

prices 

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

the United States. 

3. Sets are available for consultation in the offices of the water resourcesdIvIslc,n,A 

the Geological Survey as follows: 

East of the Mississippi River: 

Albany, N. Y., 526 Federal Building. 

Asheville, N. C., 220 Post Office Building. 

Atlanta, Ga., 411 Grand Theater Building. 

Augusta, Maine, 420 Statehouse. 

Baton Rouge, La., 538 Florida Street. 

Boston, Mass., 939 Post Office Building. 

Champaign, Ill., 605 South Neil Street. 

Charleston, W. Va., 408 Union Building. 

Charlottesville, Va., Cabell Hall, University of Virginia. 

Chattanooga, Tenn., 442 Post Office Building. 

College Park, Md., 106 Engineering Building, University of Maryland. 

Columbia, S. C., 207 Creason Building. 

Columbus, Ohio, 25.',.) West 1-1-,rdin Street. Ohio State University. 

Harrisburg, Pa., 490 Education Building. 

Hartford, Conn., 203 Federal Building. 

Indianapolis, Ind., 311 West Washington Street. 

Jackson, Miss:, 208 Millsaps Building. 

Knoxville, Tenn., 337 Post Office Building. 

Louisville, Ky., 531 Federal Building. 

Madison, Wis., 666 State Office Building. 

Montgomery, Ala., 507 Post Office Building. 

New Philadelphia, Ohio, Muskingum Watershed Conservancy District Building. 

Ocala, Fla., 302 Post Office Building. 

Pittsburgh, Pa., 515 Plaza Building. 

Raleigh, N. C., 908 Capitol Club Building. 

St. Paul, Minn., 1427 New Post Office Building. 

Trenton, N. J., 228 Federal Building. 

Washington, D. C., noner%1 Services Administration Building. 
PUBLICATIONS 7 

West of the Mississippi River: 

Austin, Tex., 302 West Fifteenth Street. 

Bismarck, N. Dak., 7 Eltinge Building. 

Boise, Idaho, 429 Federal Building. 

Denver, Colo., 126 New Customhouse. 

Fort Smith, Ark., 6 Post Office Building. 

Helena, Mont., 408 Federal Building. 

Honolulu, Hawaii, 225 Federal Building. 

Idaho Falls, Idaho, 204 Federal Building. 

Iowa City, Iowa, 508 Hydraulic Laboratory, University of Iowa. 

Lincoln, Nebr., 510 Rudge-Guenzel Building. 

Los Angeles, Calif., 429-F United States Post Office and Courthouse. 

Oklahoma City, Okla., 203 Council Building. 

Pierre, S. Dak., 2.:1 Federal Building. 

Portland, Oreg., 606 Post Office Building. 

Rolla, Mo., 211 Ramsey Building. 

St. Louis, Mo., 1004 New Federal Building. 

Salt Lake City, Utah, 303 Federal Building. 

San Francisco, Calif., 702 Appraisers Building. 

Santa Fe, N. Mex., 204 United States Courthouse. 

Tacoma, Wash., 207 Federal Building. 

Topeka. Kans., 305 Federal Building. 

Tucson, Ariz., 210 Post Office Building. 

A list of Geological Survey publications may be obtained by applying to the Director, 

Geological Survey, Washington, D. C. 

Prior to publication, records of discharge in provisional form for individual stations 

may usually be obtained from the district offices listed above. 

Early records of the flow of streams in the United States are published in the reports 

listed below. In many of these reports records for years earlier than those indicated 

have been included for some streams. 

Stream-flow data for the years 1884-1901, in reports of the Geological Survey 

(A . Annual Report; B . Bulletin; W . Water-Supply Paper) 

Report Character of data Year 

10th A, pt. 2 

11th A, pt. 2 

12th A, pt. 2 

13th A, pt. 3 

14th A, pt. 2 

B 131 

16th A, pt. 2 

B 140 

Descriptive information only. 

Monthly discharge and descriptive information .do 

.do. Monthly discharge 

Descriptions, measurements, gage heights, and ratings 

Descriptive information only. 

Descriptions, measurements, gage heights, ratings, and 

1884 to September 189G 

1884 to June 30, 1891. 

1884-92. 

1888-93. 

1893-94. 

1895. 

W 11 

18th A, pt. 4 

W 15 

monthly discharge. Gage heights 

Descriptions, measurements, ratings, and monthly discharge.. 

Descriptions, measurements, and gage heights of streams east of the Mississippi River, and Missouri River and tribu1896. 

1895-96. 

1897. 

taries above Kansae'River. W 16 Descriptions, measurements, and gage heights of stream west of the Mississippi River, except Missouri River and tribu- taries above Kansas River. 

1897. 

19th A, pt. 4 

W 27 

W 28 

Descriptions, measurements, ratings, and monthly discharge. 

Measurement., ratings, and gage heights of streams east of the Mississippi River, and Missouri River and tributaries. Measurements, ratings, and gage heights of streams west of 

1897. 

1898. 

1898. the Mississippi River, except Missouri River and tribu- taries. 20th A, pt. 4 

W 35 to 39 

21st A, pt. 4 

W 47 to 52 

22d A, pt. 4 

W 65, 66 

W 75 

Monthly discharge 

Descriptions, measurements, gage heights, and ratings 

Monthly discharge 

Descriptions, measurements, gage heights, and ratings 

Monthly discharge 

Descriptions, measurements, gage heights, and ratings 

Monthly discharge 

1898. 

1899. 

1899. 

1900. 

1900. 

1901. 

1901. 

Papers on surface water supply containing records from 1899 to date, grouped by years 

and drainage basins, are listed by number on page 8. The data for any particular gaging 

station will, in general, be found in the reports covering the years during which the 

station was maintained. For example, the data for 1910 to 1920 for any station in the 

area covered by part 3 are published in Water-Supply Papers 283, 303, 323, 353, 403, 433, 

453, 473, and 503, which contain records for the Ohio River Basin for those years. 

905771 0-50-2 
		

'

' 

-

SURFACE WATER SUPPLY, 194 , PART 8 

Numbers of water-supp,y papers containing results of stream measurements, 1899-1948 (for basins included see p. 61. 

1

35 

47, h48 

65, 75

8297M 

'S,'::,VcsiL;12,9,%22..73—i?i';:' - ,?;iiiiED0%Hiiiii:in',4'F' . _Ve:iciiAE, - 1E-1,E2ct4',:,. 

tsigiq 

.4 m,8&„s„ 

''''' 1.`"?;Ei," (U2)%22..•1.;..;SEiS5)a3iTiEriFt 1 l.;,-if:'.EililZi37liTgi. 5 in N11 

,,t-.?:.-,2 2.'F?74_, NNEE ,:8 H F4".i:iU,E :i ii ii :iEa,' 10 E F,F :(.' F F,3Fai E E iiEi F,:q :F:ii:iiE, 

!f-) 

'''' 5 g2 2 g3i1,'-- '41 nTCe.173 s °:: c':1, t 4 r.'.' :?1,',a:V. c 8), 1' a F'F,.: 4 F2 nFoil ns iEl,

NB! ;::: 

5 36

49 

k65, 66, 75 

k83, 85 

k98, 99, n100 2 

FY 

,:::.Cira - 2,. 6.,6',11,V;.-r::',.51:i'ECiEFiii,P', - 92,''n3tMoi en,Par] 

..:,::, ,:,• 7, 1, 7. ,I, c<;,, ,.1 1 2 1-4 ‘,2 2 8,:,-,l' .v.1 ,---os m--.-.) ,i, i -,..i. il.73:,,F zr, In, P 74.; 70' 1,:.. ,z, 3,- i v,i i: it, ,,,Im.. 

to n n - 1 D ,;::

„, g cg.' '43?),.`,?, 7:- :71 it'',1,1 ,`' ,4,T,'P 'it-1 3 i ',,F, , ii '6, Fa ii '6, ii M.) ! ',.17' . :-.) Eci i 'iFeli EtiE, ]

,Zr.-'422,`3i,'1°-:REE:s ) -4' ikiili*nrAM,A,72,nqninililiqUP:

'43 

F:7)Li2°IV,ialcslEF.,,?,,,a.):1): 7 2 ,TiiEE',"4EirtLIF,.(!:q)",TFEoliir?"..;,-4 iig,rci 

-,T; i 

1F,,iii4°,:H§F, 3 HHUP-3 .nnEil§E,1qTATI 

-pi '''' ...(sss. 

oi'g'222?P]EA,,')4 :. -F.,.,-

- :i.--,--. ',71 2 -.-

22'412 e.EtPii°, '1 Fi°,'' Fir'W.iF. . :-HiEi F. , Ks.E 2 E F2' MF,I. F,8E Eill,E ii Z-11 ;Er:73]

'P.; Lt tz,4. ie-,7,1 

i'321.')Ig',,.11079,1,iis,V,.:)M3P,K1U,ITIF-,F,7Elli:.1371 - ,I1Bir ) „. i 

-) 5,''r e1 .2^"fiEEiFAF?,F - ..),F3'..L . ::1',.:5- 3,1 :iFf,13 ,71F..,E*1.— F,qii3iEZiVO - R,E:"10, . 

- '2 ilg3. , ?is; „1 74:..s.-

'''):7),7'g'-7,2;Far'i,1F-1.1`41iih`:,94!:irAii,iii,10 i,t),i,Vto'ql,.11:4',.27:2Eitir;MTS,:l.NE4. 

--*),?.''' 6. 

,,,,, g2 a '2 . 41i 

14,7 E?: K 

• 10 C1" 

•c; CC

C 

10 Op , F... OIcf-.:81i)TPgiri,Ni:giE4:iYiP.T;AIiiiPAPos,;f4:41,Ar3::::4.1:4:':iccf. 
PUBLICATIONS 9 

The records at most of the stations discussed in these reports extend over a series of 

years. Miscellaneous measurements at many points other than regular gaging stations have 

been made each year and are published under "Miscellaneous discharge measurements" at the 

end of each report, the streams and points of measurement listed appearing in the same 

relatiie order as the streams and gaging stations in the body of the report. An index of 

the records obtained prior to 1904 has been published in Water-Supply Paper 119. 

Each of the reports on surface water supply for the year 1939, issued as Water-Supply 

Papers 871 to 884 (see table on p. 8), contains, for the area covered by that report, a 

summary of yearly discharge at gaging stations at which 10 or more complete years of record 

have been collected. These summaries are available also as separate reprints. 

Reports have been published that are compilations of records for various areas, usually 

a single State or drainage basin. These reports contain records previously published 

(some of which have been revised), as well as some records not contained in the annual 

series of water-supply papers. The following table gives the numbers and titles of these 

reports, arranged alphabetically, some by States and some by drainage basins. 

Reports containing compilations of records of discharge by States and drainage basins 

Water-Supply Paper Report Period 

STATE 

Alabama, Water powers of, with an appendix on stream measurement. in :895-1903 107 Mississippi. California, Water resources of, part 1, Stream measurements in Sacra- 1887-1912 298 mento River Basin. California, Water resources of, part 2, Stream measurements in San 1878-1912 299 Joaquin River Basin. California, Water resources of, part 3, Stream measurements in the Great 1891-1912 300 Basin and Pacific Coast river basins. California, southern, Surface water supply of Pacific slope of 1890-1918 447 California, Surface water supply of Sacramento River Basin 1895-1927 597-E California, Surface water supply of San Joaquin River Basin 1895-1927 636-D California, southern, Surface water supply of Pacific slope basina 1894-1927 636-B California, Surface water supply of minor San Francisco Bay, northern 1895-1927 637-A Pacific, and Great basins in. Colorado, Water resources of 1884-1900 74 Georgia, Water resources of 1895-1905 197 Massachusetts, Surface waters of 1848-1915 415 Massachusetts, Hydrology of, Part 1, Summary of stream-flow and precipi- 1863-1945 1105 tation records. 

Nebraska, Surface water supply of 1894-1906 230 Oregon, Surface water supply of 1878-1910 370 Texas, Summary of records of surface waters of 1898-1937 850 Vermont, Surface waters of 1875-1916 424 Washington, Summary of hydrometric data in 1878-1919 492 Washington, Summary of records of surface waters of 1919-35 870 Wisconsin, northern, Water power of 1895-1905 156 Wyoming, Surfaoe waters of, and their utilization 1894-1921 469 

DRAINAGE BASIN 

Colorado River (Ariz., Colo., N. Mex., Utah, Wyo.) and its utilization 1888-1914 395 Colorado River, upper (Colo., Utah), and its utilization 1897-1927 617 Colorado River Basin (Ariz., Calif., Colo., Utah, Wyo.), Surface waters 1891-1938 918 at base stations in. 

Colorado River Basin (Ariz., Calif., Nev., N. Mex., Utah), Surface waters 1888-1938 1049 at stations on tributaries in lower. Columbia River Basin, upper (Mont., Idaho), Surface waters of 1898-1938 916 Great Salt Lake Basin, Water powers of 1889-1920 517 Green River (Colo., Utah, Wyo.) and its utilization 1894-1926 618 Kennebec River Basin (Maine), Water resources of 1890-1906 198 Milk River. See St. Mary and Milk Rivers

Missouri and 3E7 Mary River Basins (Mont.), Surface water. of 1881-1938 917 New-Kanawha River Basin (N. C., Va., W. Va.), Surface water supply of 1895-1920 536 Penobscot River Basin (Maine), Water resources of 1904-9 279 Potomac River Basin (D. C., Md., W. Va.) 1895-1906 192 Rio Grande Basin (Colo., N. Max., Tex.), Water resources of 1888-1913 358 St. Mary and Milk Rivers (Mont., Canada), Water supply of 1898-1917 491 St. Mary River. See St. Mary and Milk Rivera; Missouri and St. Mary River Basin. ---

Sevier Lake Basin (Utah), Utilization of surface water resources of 1889-1937 920 Susquehanna River Basin (Pa., Md.) Nydrography of 1890-1904 109 

Records of discharge have been published also in State reports. Some of these are 

not contained in the publications of the Geological Survey or are revisions of records 

previously published in its water-supply papers. The following table contains a list of 

these reports. 
1) SURFACE WATER SUPPLY, 1948, PART 8 

State reports containing compilations of records of discharge 

State Period Report Issued by 

Alabama Do 

Arkansas 

Colorado 

Do 

Connecticut... 

D. Florida 

Georgia Do Illinois Do Indiana Do Iowa DoDo 

Kansas Do 

Do 

Do 

Do Kentucky 

Louisiana 

Maine 

Maryland 

Do 

Minnesota 

Missouri 

Do 

Montana Do 

Nebraska 

Do New Hampshire 

New Jersey 

Do 

Do 

New Mexico.... 

North Carolina 

Do 

Do 

Do 

Do 

North Dakota.. 

Do 

Do 

Ohio 

Do 

Do 

Do 

Oregon 

Do 

Do 

Do 

Do 

1895-1915 

1904-47 

1857-1928 

1881-1935 

1881-1938 

1900-1927 

1912-33 

1898-1946 

1895-1906 

1907-19 

1908-11 

1900-1934 

1923-27 

1927-30 

1873-1932 

1873-1940 

1941-42 

1895-1919 

1919-24 

1924-28 

1928-35 

1935-39 

1910-20 

1903-38 

1887-1920 

1929-37 

1892-1943 

1909-12 

1857-1926 

1927-39 

1889-1911 

1881-1938 

1894-1914 

1914-28 

1889-1922 

1892-1928 

1928-34 

1934-40 

1888-1925 

1889-1923 

1889-1936 

1866-1945 

1820-1945 

1866-1945 

1872-1945 

1919-21 

1882-1938 

1882-1944 

1898-1921 

1898-1944 

1902-39 

1898-1939 

1878-1914 

1914-24 

1924-30 

1930-36 

1936-41 

Bull. 17, Water powers of Alabama 

Special Report 20, Water Resources and Hy- drology of southeastern Alabama. 

Stream-gaging Rept. 1 

Water resource. of Colorado, Appendix 2, Data on stream-gaging stations of 

Colorado.1 

Water resources of Colorado, Appendix 3, vole. 1 and 2, Stream-flow data of 

Colorado. Bull. 44, Water resources of Connecticut.. 

5th biennial report 

Bull. 31, Springs of Florida 

Bull. 16, Water powers of Georgia 

Bull. 38, Water powers of Georgia 

Water resources of Illinois 

Stream-flow data of Illinois 

Pub. 72, Surface water supply of Indiana.. 

Pub. 112, Surface water supply of Indiana. 

Stream-flow records of Iowa 

Water-Supply Bull. 1, Summaries of yearly and flood flow relating to Iowa streams. Water-Supply Bull. 2, Surface water resources of Iowa. 

Surface waters of.Kansas .do Report of Division of Water Resources 

Stream-flow data of Kansas 

....do 

Surface waters of Kentucky 

Geol. Bull. 16, Surface water supply of Louisiana. 1st annual report

Flow data and draft storage curves for major streams in Maryland. Bull. 1, Summary of records of surface waters of Maryland and the Potomac 

River Basin. Water-resources investigation of Minne- sota. Vol. 20, 2d series, Water resources of Missouri. Vol. 26, 2d series, Surface waters of Missouri. 5th biennial report 

Special Rept. 10, vols. 1-4, Water re- sources of Montana. 1st hydrographic report 

2d hydrographic report 

Annual and statistical report, vol. 12 

Bull. 33, Surface water supply of New Jersey. Special Rept. 5, Surface water supply of New Jersey. Special Rept. 9, Surface water supply of New Jersey. Surface water supply of New Mexico 

Bull. 34, Discharge records of North Carolina streams. Bull. 39, Discharge records of North Carolina streams.' Hydrologic Data on the Neuse River Basin 

Hydrologic Data on the Cape Fear River Basin. Hydrologic Data on the Yadkin-Pee Dee River Basin. Hydrologic Data on the Catawba and Broad River Basins Report to Governor of North Dakota on flood control. Surface water in North Dakota 

Supplement B, 4th biennial report 

Bull. 73, Ohio stream flow, Part 1 

Bull. 127, Ohio stream flow, Part 2 

Bull. 200, Compilation of stream-flow records of Ohio. 

Bull. 111, Ohio stream-drainage areas and flow-duration tables. Bull. 4, Water resources of the State of Oregon. Bull. 7, Water resources of the State of Oregon. Bull. 8, Water resources of the State of Oregon. Bull. 9, Water resources of the State of Oregon. 

Bull. 1U, Water resources of the State of Oregon. 

Geological Survey of Alabama. 

Do 

Arkansas Geological Survey. 

State Planning Commission, Water Conservation Board, 

State engineer. 

Do. 

State Geological and Natural History Survey. State Water Commission. 

Florida Geological Survey. 

Geological Survey of Georgia. Do. Rivers and Lakes Commie/lion. 

Division of Waterways. 

Department of Conservation. Do. State Planning Board. 

Iowa Geological Survey. 

Do. 

Kansas Water Commission. Do. State Board of Agriculture. Do. 

Do. Kentucky Geological Survey. 

Department of Conservation. 

Maine Water Power Commission. 

State Planning Commission and Water Resources Commission. Department of Geology, Mines, and Water Resources. 

State Drainage Commission. 

Missouri Bureau of Geology and Mines. Missouri Geological Survey and Water Resources. Office of the State Engineer. 

Montana Agricultural Experi- ment Station. Bureau of Water Power, Irri- gation, and Drainage. 

Do. Public Service Commission. 

Department of Conservation and Development. State Water Policy CommUmlon. 

Do. 

Office of the State Engineer. 

Department of Conservation and Development. 

Do. 

Do. 

Do. 

Do. 

Do. 

State chief engineer. 

State Planning Board. 

State Water Conservation Commission. Engineering Experiment Station, Ohio State University. 

Do. Department of Agriculture, Division of Conservation 

and Natural Resources. Engineering Experiment Station, Ohio State University. Office of the State Engineer. 

Do. 

Do. 

Do. 

Do. 

1 Contains records of yearly discharge only. 

2 Contains records of maximum and minimum daily, weekly, and monthly discharge and ysarly mean discharge. 
PUBLICATIONS 11 

State reports containing compilations of records of discharge--Continued 

State Period Report Issued by 

Pennsylvania 1890-1911 Report of the Water Supply Commission of Water Supply Commission of Pennsylvania. Pennsylvania. Do 1928-32 Stream-flow records of Pennsylvania Department of Forests and Waters. Rhode Island.. 1929-41 7th annual report Department of Public Works. South Carolina 1884-1946 Bull. 17, Summary of records of surface water supply of South Carolina. South Carolina Research, Planning and Development 

Board. 

Tennessee 1874-1924 Bull. 34, Water resources of Tennessee-.... Department of Education. Do 1920-30 Bull. 40, Surface waters of Tennessee Do. Utah 1889-1905 5th biennial report Office of the State Engineer Do 1906-10 7th biennial report Do. Do 1911-16 10th biennial report Do. Virginia 1895-1927 Bull. 31, Water resources of Virginia Virginia Geological Survey. Do 1927-42 Bull. 4, Surface water supply of Virginia (Potomac, Rappahannock, and York River Virginia Conservation Com- mission. Basins). Do 1927-42 Bull. 5, Surface water supply of Virginia Do. (James River Basin). Do 1927-42 Bull. 6, Surface water supply of Virginia Do. (Roanoke and Chowan River Basins). Do 1927-42 Bull. 7, Surface water supply of Virginia Do. (New, Tennessee, and Big Sandy River 

Basins). Washington 1878-1933 Bull. 5, Monthly and yearly summaries of hydrometric data. Department of Conservation and Development. Wisconsin 1888-1914 1st report of Railroad Commission of Wis- consin to Legislature on water powers. Railroad Commission of Wis- consin. Do 1914-23 2d report of Railroad Commission of Wis- consin to Legislature on water powers. Do. 

3 Includes records of discharge for all stations in North Carolina in the Tennessee River Basin. Note.- In addition to the records contained in the reports listed above, the following States haVW—Tiaued annual or biennial reports in which are contained records of discharge: California, Colorado, Connecticut, Idaho, Indiana, Kansas, Maine, Missouri, Montana, Nebraska, Nevada, New 

Mexico, New York (also New York City Board of Water Supply and city of Rochester). North Dakota, Oregon, Pennsylvania, Rhode Island, Washington, and Wyoming. 

Tha reports listed in the foregoing tables contain the customary records of discharge 

:ollccted during the systematic operation of gaging stations. Detailed information on 

the stage and discharge of many streams during major floods has been included in special 

reports on these floods published by the Geological Survey. The more recent of these 

special reports also contain other pertinent hydrologic information and analyses and compilations „r data relating to earlier noteworthy flools. The following list gives the numbers and titles of these reports: 

Water-Supply Paper 

88 The Passaic flood of 1902. 92 The Passaic floA of 1903. 96 Destructive floods in the United States in 1903. 147 Destructive floods 1n the United States in 1904. 162 Destructive floods in thl United States in 1905. 334 The Ohio Valley flood of March-April 1913. 426 Southern California floods of Jan.lary 1916 487 The Arkansas River flood of June 3-5, 1921. 488 The floods in central Texas in September 1921. 520-G Some floods in the Rocky Mountain region. 636-C The New England flood of November 1927. 771 Floods in the United States, magnitude and frequency. 773-E The New York State flood of July 1935. 796-B Flood on Republican and Kansas Rivers, May and June 1935. 796-C Flood in La Canada Valley, Calif., January 1, 1934. 796-0 Major Texas floods of 1935. 798 The floods of March 1936, part 1, New England rivers. 799 The floods of March 1936, part 2, Hudson River to Susquehanna River region. 800 The floods of March 1936, part 3, Potomac, James, and upper Ohio Rivers. 816 Major Texas floods of 1936. 836-A Stages and flood discharges of the Connecticut River at Hartford, Conn. 838 Floods of Ohio and Mississippi Rivers, January-February, 1937. 842 Floods in Canadian and Pecos River Basins of New Mexico, May and June 1937. 843 Floods of December 1937 in northern California. 844 Floods of March 1938 in southern California. 847 Maximum discharges at stream-measurement stations through September 1938. 867 Hurricane floods of September 1938. 869 Flood of August 1935 in Muskingum River Basin, Ohio. 914 Texas floods of 1938 and 1939. 966 Minor floods of 1938 in North Atlantic States. 967-A Floods of September 1939 in Colorado River Basin below Boulder (Hoover) Dam. 967-B Flood of July 5, 1939, in eastern Kentucky. 967-C Flood of August 21, 1939, in town of Baldwin, Maine. 994 Cloudburst floods in Utah, 1850 to 1938. 997 Floods in Colorado. 1046 Texas floods of 1940. 1066 Floods of August 1940 in the southeastern States. 1080 Floods of May-June 1948 in Columbia River Basin. 

Title 
		

		

12 SURFACE WATER SUPPLY, 1948, PART 8 

RECORDS OF DISCHARGE COLLECTED BY AGENCIES OTHER THAN THE GEOLOGICAL SURVEY 

Tne following table contains a list of gaging stations for the area covered by this 

report at which records of discharge were collected during the wIter year October 1947 to 

September 1948 by agencies other than the Geological Survey. The records for these stations are not contained in publications of the Geological Survey. 

Records of discharge collected by agencies other than the Geological Survey 

Stream Location Period Collected by Remarks 

Near Presidio, Tex 1932-48 International Boundary Published in bUlletins 

& Water Commission. of International 

Boundary & Water 

Commission. 

Arrey Canal Near Arrey, N. Mex 1918, Bureau of Reclamation. Unpublished. 

1920-48 

Bonita ditch Below Cabello Dam, 1938-48 .do Do. 

Alamito Creek... 

N. Mex. 

Carlsbad project Near Carlsbad. N. Mex.. 19111-48 .do Do. 

main canal. 

Devils River Near Del Rio, Tex 1931.-48t International Boundary Published in bulletins 

& Water Commission. of International 

Boundary & Water 

Commission. 

East Side Canal. At Melilla Dam. near 1916-18, Bureau of Reclamation. Unpublished. 

Melilla Park, N. Mex. 1920-48 

El Paso sewage Near El Paso. Tex 1936-48 International Boundary Published in bulletins 

outfall. & Water Commission. of International 

Boundary & Water 

Commission. 

Goodenough Near Comstock, Tex 1E31-48t International Boundary Published in bulletins 

Springs. & Water Commission. of International 

Boundary & Water 

Commission. 

Hagerman Canal... Near Roswell, N. Mex 1942-48 Hagerman Irrigation Unpublished. 

Co. 

Las Vacas Arroyo. Near Villa Acuna, 1938-48 International Boundary Published in bulletins 

Coahuila, Mexico. & Water Commission. of International 

Boundary & Water 

Commission. 

Leesburg Canal... At head, near Port 1E17-18, Bureau of Reclamation. Unpublished. 

Selden, N. Mex. 1920-48 

Pecos River Near Comstock, Tex 1931-48t International Boundary Published in bulletins 

& Water Commission. of International 

Boundary & Water 

Commission. 

Pinto Creek Near Del Rio, Tex 1931-481 .do Do. 

Rio Alamo Mier, Tamaulipas, 1924-48 .do Do. 

Mexico. 

Rio Conches Cuchillo Parado, 1945-48 .do Do. 

Chihuahua, Mexico. 

Rio Escondido.... At Villa de Puente, 1922-48 .do Records for 1923-24 

Coahuila, Mexico. and 1928 published 

in H. Doc, 359, 71st 

Cong., 2d sess., as Rio San Antonio above 

Puente; records for 

1932-48 published in 

bulletins of International Boundary & 

Water Commission. 

Rio Grande Below American Dam, 1938-48 .do Published in bulletins 

near El Paso, Tex. of International 

Boundary & Water 

Commission. 

Do Below Brownsville, Tex. 1934-48 .do Do. 

Do County-line station 1938-48 .do Do. 

near El Paso, Tex. 

Do Del Rio, Tex 1931-48t .do Do. 

Do Eagle Pass, Tex 1931-48t .do Do. 

Do Near El Paso, Tex 1$31-48t .do Do. 

Do Below old Fort Quitman, 1931-48t .do Do. Tex. 

Do Hildalgo, Tex 1$31-48t .do Do. 

Do At inland station, 1938-48 .do Do. near El Paso, Tex. 

Do At Johnson Ranch, Tex. 1E36-48 .do Do. Do Cuidad Juarez, 1938-48 .do Do. Chihauhau, Mexico. 

Do Langtry, Tex 1931-48t .do Do. 

Do Laredo, Tex 1926-481 .do Do. 

Do Las Palmas, Tamaulipas, 1945-48 .do Do. 

Mexico. 

Do Leesburg Dam, at Fort 1919-48 Bureau of Reclamation. Unpublished. 

Selden, N. Mex. 

Do Matamoras, Tamaulipas, 1926-480 International Boundary Published in bulletins 

Mexico. & Water Commission. of International 

Boundary & Water 

Commission. 

Do Above Presidio, Tex 1926-481 .do Do. 

Do Below Presidio, Tex 1926-482 .do Do. 

Do Rio Grande City, Tex. 1932-48 .do Do. 

Do Roma, Tex 1925-281 .do Do. 

1E31-48 

Do Zapata, Tex 1832-48 .do Do. 

Rio Salado Near Guerrero, Tamau- 1924-481 .do Do. lipas, Mexico. 

t Records for earlier years published in Geological Survey water-supply papers. 

Records for earlier years published in Geological Survey water-supply papers as Rio Grande near 

Brownsville, Tex. 
		

		

			

	 	

COOPERATION 13 

Records of discharge collected by agencies other than the Geological Survey--Continued 

Stream Location Period Collected by Remarks 

Rio San Diego... Jimenez. Coahuila, 1924-48 International Boundary Records for 1924-28 

Mexico. & Water Commission. published in report 

of International 

Water Commission, 

United States and 

Mexico, U. S. Section; 

records for 1932-48 

published in bblletins 

of International Bound -

ry & Water Commission. 

Rio San juan.... Above Rio Grande City, 1946-48 ....do Published in bulletins oaf 

Tex. International Boundary 

& Water Commission. 

Do Below Rio Grande City, 1946-48 ....do Do. 

Tex. 

Rio San Rodrigo. Near El Moral, Coahuila, 1922-48 ....do Records for 1923-24 and 

Mexico. 1927-28 published in 

H. Doc. 359, 71st Cong 

2d seas.; records for 

1932-48 published in 

bulletins of International Boundary & 

Water Commission. 

San Felipe Creek Near Del Rio, Tex 1931-48 ....do Published in bulletins 

of International 

Boundary & Water 

Commission. 

Terlingua Creek. Near Terlingua, Tex.... 1932-48 ....do Do. 

West Side Canal. At Mesilla Dam. near 1920-48 Bureau of Reclamation. Unpublished. 

MesIlla Park. N. Mex. 

Note.- In addition to the gaging stations listed above, the International Boundary & Water Com 

miTirOli collects and publishes records of discnarge in floodways In the lower Rio Grande Valley and 

records of diversions from the Rio Grande for irrigation and municipal use. 

The Soil Conservation Service of the United States Department of Agriculture has been collecting 

records of runoff from 3 areas of less than 200 acres each near Waco, Tex., beginning In 1938. 

These records are in the files of the Soil Conservation Service. 

COOPERATION 

The work in the several States was done under cooperative agreements with the organizations listed below: 

Colorado: Office of the State Engineer, M. C. Hinderlider, and Colorado Water 

Conservation Board, C. H. Stone, director. 

Louisiana: State Department of Public Works, D. L. Pyburn, director, succeeded by 

J. L. White. 

New Mexico: Office of the State Engineer, J. H. Bliss; Interstate Stream 

Commission, J. H. Bliss, secretary; New Mexico State Highway Department, B. G. 

Dwyre, State highway engineer Colfax County, J. D. Hickman, chairman, Board of 

Commissioners. 

Texas: State Board of Water Engineers, consisting of E. V. Spence, chairman, 

J. W. Pritchett, and H. A. Beckwith; Red Bluff Water Power Control District. 

Financial assistance was furnished by the Corps of Engineers In the operation of 76 

gaging stations, of which 4 were in Louisiana, 7 in New Mexico, and 65 in Texas. 

Financial assistance was also furnished by the Office of Indian Affairs of the United 

States Department of the Interior in the operation of gaging stations on the Indian Pueblo 

lands in New Mexico. 

Acknowledgments are due the Bureau of Reclamation of the United States Department of 

the Interior and the Weather Bureau of the United States Department of Commerce for assistance in collecting the records published herein. 

Assistance in collecting records was rendered also by the following organizations: 

New Mexico: Town of Alamogordo, Middle Rio Grande Conservancy District, and 

Public Service Company of New Mexico. 

Texas: Dallas County; the cities of Abilene, Amarillo, Corpus Christi, 

Dallas, Houston, Longview, and San Angelo; Tarrant County Water, Control and 

Improvement District No. 1: West Texas Utilities Co.; Lower Colorado River 

Authority; Brazos River Conservation and Reclamation District; Pecos County 
14 SURFACE WATER SUPPLY, 1948, PART 8 

Water Improvement District No. 1; Reeves County Water Improvement District No. 1; 

Dow Chemical Co.; Texas Highway Department; San Jacinto River Conservation and 

Reclamation District; Lower Neches Valley Authority; Texas Electric Service Co.; 

Bexar, Medina, Atascosa Counties Water Control and Improvement District No. 1; 

Brown County Water Improvement District No. 1. 

DIVISION OF WORK 

The stream-gaging work was conducted by the water resources division of the Geological 

Survey -- Carl G. Paulsen, chief hydraulic engineer and Joseph V. B. Wells, chief of the 

surface water branch. The data for the stations in the several States were collected and 

prepared for publication under the supervision of district engineers as follows: In 

Colorado, Robert Follansbee until July 23, 1948, succeeded by F. M. Bell on July 26, 1948, 

the work being done in collaboration with M. C. Hinderlider, State engineer, and L. T. 

Burgess, State chief hydrographer; in Louisiana (except for Sabine River at Logansport), 

W. R. Eaton until September 16, 1948, succeeded by Fay Hansen on October 25, 1948; in 

New Mexico (except for Delaware River near Red Bluff and Pecos River at Red Bluff), 

Berkeley Johnson; in Texas and for Sabine River at Logansport, La., Delaware River near 

Red Bluff, N. Mex., and Pecos River at Red Bluff, N. Mex., C. E. Ellsworth. 

The records were reviewed and the manuscript prepared for publication under the direction of B. J. Peterson, chief, annual reports section. 
GAGING-STATION RECORDS lb

MERMENTAU RIVER BASIN 

Bayou Nezpique near Basile, La. 

Location.- Water-stage recorder, lat. 30°28,50", long. 92°37,56", in NEiN14, sec. 1, T. 7 

---77-R7 3 W., at bridge on U. S. Highway 190, a quarter of a mile downstream from New 

Orleans, Texas & Mexico Railway bridge and 2 miles west of Basile. Datum cf gage is 

3.39 feet above mean sea level, datum of 1929, supplementary adjustment of 1941. Auxiliary staff gage 71 miles downstream. Datum of auxiliary gage is 1.03 feet below mean 

sea level (Louisiana Geodetic Survey bench mark). 

Records available.- October 1938 to September 1948. 

Average discharge.- 10 years, 869 second-feet. 

Extremes.- Maximum discharge during year, 4,860 second-feet Dec 18 (gage height, 21 36 

feet); minimum.0.1 second-foot June 22-29; minimum gage height, 1.00 foot June 28. 

1938-48: Maximum discharge, 22,900 second-feet Aug. 11, 1940 (gage height, 31.08 

feet); minimum, 0.1 second-foot June 7-13, 1943, June 22-29, 1948; minimum gage height, 

that of June 28, 1949. 

Remarks.- Records good except those below 10 second-feet, which are fair. Discharge above 

about 60 second-feet computed by using fall as determined by twice-daily readings of 

auxiliary staff gage as a factor. Diversions above and below station for irrigation. 

Discharge, in second-feet, water year October 194- tc September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 23 27 189 262 4,130 2,440 21 139 3.5 C.3 55 9C 

2 20 88 103 738 4,010 2,440 18 59 1.5 .4 49 83 3 18 126 54 879 3,670 2,790 15 37 .8 288 51 66 4 15 94 39 775 3,400 3,270 12 27 .4 218 54 64 5 12 188 32 502 3,040 3,580 11 14 .3 104 43 50 

6 9.9 218 30 290 2,680 3,910 9.5 11 .3 84 47 44 7 7.9 252 28 171 2,210 4,010 8.2 8.7 .3 40 75 41 8 7.1 268 35 117 1,530 4,080 7.3 7.8 .3 20 102 34 9 5.5 256 297 78 1,310 3,840 6.5 12 .3 4.7 79 29 10 4.4 683 1,020 61 1,620 3,450 5.5 31 .2 7.1 63 31 

11 3.7 1,620 1,420 g50 1,960 3,080 4.8 27 .2 429 48 28 12 3.3 1,930 1,650 g78 2,000 2,640 4.5 21 .3 511 37 30 13 2.6 1,930 1,830 g424 1,980 2,120 13 16 .3 221 32 69 14 2.3 1,560 1,960 g1,040 2,130 1,380 33 11 .3 173 29 106 15 1.8 1,220 ?,920 g1,210 2,270 585 35 8.7 .3 217 25 157 

16 1.5 1,020 3,870 g1,290 2,270 235 25 8.4 .2 197 22 219 17 1.2 869 4,520 g1,300 1,990 122 19 5.4 .2 144 21 234 18 1.0 655 4,810 1,24C 1,760 88 18 4.1 .2 91 25 212 19 .9 485 4,510 934 1,450 74 31 1.9 .2 63 17 175 20 .9 370 4,120 754 920 59 28 1.'2 .2 47 16 125 

21 .8 250 3,620 908 626 57 22 .7 .2 35 16 81 22 .8 322 3,160 1,170 1,230 49 15 .4 .1 24 18 56 23 .7 1,240 2,700 1,280 1,790 42 11 .4 .1 23 21 40 24 .7 1,790 2,090 1,420 2,390 37 7.5 .4 .1 24 21 31 25 .6 2,090 1,220 1,490 . 2,710 32 5.7 .4 .1 22 20 26 

26 .6 1,990 472 1,510 2,920 30 237 .3 .1 21 19 21 27 .6 1,580 164 1,690 3,030 28 869 .3 .1 18 21 18 28 .6 1,030 66 2,300 2,890 33 1,140 .3 .1 20 34 16 29 584 53 2,800 2,670 37 915 .5 .1 29 67 14 30 .., 328 51 3,420 - 31 383 5.8 .2 54 97 11 31 54 3,880 - ?5 - 5.4 - 64 97 

Second- Runoff In Month Maximum Minimum Mean foot-days acre-feet 

October 180.8 32 0.6 5.83 359 November 25,063 2,090 27 835 49,710 December 47,087 4,810 28 1,519 93,400 

Calendar year 1947 407,811.7 8,420 .6 1,117 808,900 - January 34,061 3,880 50 1,099 67,560 February 66,536 4,130 626 2,294 132,000 March 44,594 4,080 25 1,439 88,450 April 3,930.5 1,140 4.5 131 7,800 May 461.1 139 .3 14.9 915 June 11.5 3.5 .1 .38 23 July 3,193.5 511 .3 103 6,330 August 1,321 102 16 42.6 2,620 September 2,201 234 11 73.4 4,370 

Water year 1947-48 228,640.4 4,810 .1 625 453,500 

Peak discharge rase, 3,700 sec.-ft.).- Dec. 18 (7 p.m.) 4,860 sec.-ft.; Feb. 1 (8 a.m.) 4,160 sec.-ft.; Mar. 8 5 a.m.) 4,110 sec.-ft. g Prom graph based on wire-weight gage readings. 
16 MERMENTAU RIVER BASIN 

Bayou des Cannes near Eunice, La. 

Location.- Water-stage recorder, lat. 30°29,00", long. 92°29,25", in SWIISEt sec. 32, T. 

b S., H. 1 W. Louisiana meridian, at bridge or. U. S. Highway 190, 3 miles downstream 

from New Orleans, Texas & Mexico Railway bridge and 4 miles west of Eunice. Datum 

of gage Is 14.84 feet above mean sea level, datum of 1929 (Louisiana Geodetic Survey 

bench mark; levels by Corps of Engineers). Auxiliary staff gage 1.8 miles downstream. 

Records available.- October 1938 to September 1948. 

Average discharge.- 10 years, 277 second-feet. 

Extremes.- Maximum discharge during year, 3,140 second-feet Mar. 4 (gage height, 16.98 

teAt); no flow June 23-27, 30, July 1. 

1938-48: Maximum discharge, 10,000 second-feet July 7, 1946 (gage height, 21.15 

feet); no flow May 7, 10-18, July 10, 1939, June 23-27, 30, July 1, 1948. 

Remarks.- Records good except those below 10 second-feet, which are fair. Discharge 

above about 70 second-feet computed by using fall as determined by twice-daily 

readings of auxiliary staff gage as a factor. Diversions above station for irrigation. 

Some regulation May to October by small Irrigation diversion dams. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 6.8 10 18 15 1,460 154 1.8 190 4.4 0 36 59 

2 7.4 3.6 13 43 1,210 822 1.7 30 2.5 30 23 54 

3 7.2 2.4 9.9 92 844 1,960 1.4 13 1.0 50 21 46 

4 8.3 2.1 9.1 69 372 2,870 1.2 9.5 .5 17 23 42 

5 6.8 83 9.5 36 76 1,950 1.1 7.2 .3 9.5 61 37 

6 3.9 70 9.0 17 47 1,580 1.1 10 .2 5.8 76 33 

7 2.5 96 8.8 11 30 1,310 1.1 17 .7 6.4 136 28 8 1.8 153 9.3 8.8 79 1,100 1.0 44 .4 5.4 104 24 

9 1.3 104 143 7.9 539 822 .8 48 .2 3.9 63 23 

10 1.7 181 670 6.6 680 434 .7 30 .2 2.6 98 54 

11 1.4 579 834 4.8 824 163 .5 16 .1 1;...6 95 91 

12 1.1 745 ,060 37 892 86 .5 9.7 .2 298 71 93 13 1.1 893 ,220 283 784 50 1.0 6.9 .5 197 52 86 14 1.4 868 ,150 498 649 22 9.7 4.0 .2 101 38 107 

15 1.9 776 ,640 569 498 14 73 3.0 .2 63 25 225 

16 1.8 720 ',120 507 209 10 48 3.1 .2 33 18 256 

17 1.4 742 ',320 245 73 8.4 25 2.7 .2 23 16 182 

18 .9 623 ,670 87 38 8.3 14 1.7 .2 42 17 116 

19 .5 296 .,210 49 22 7.6 8.4 3.0 .2 26 16 83 

20 .4 100 780 95 16 6.3 4.5 3.0 .1 19 12 50 

21 .2 61 253 147 195 5.4 2.2 1.8 .1 21 12 33 

22 .2 165 56 166 660 5.6 1.6 .8. 0 28 11 18 

23 .2 808 29 336 800 4.8 2.5 6.6 0 24 8.3. 12 

24 .2 959 19 485 1,090 3.9 1.1 3.3 0 5.0 9.3 

25 .2 1,280 14 542 1,100 3.3 3.7 2.0 0 14 4.6 10 

26 .2 1,240 13 455 1,110 3.0 704 1.0 0 16 7.9 10 

27 .2 890 12 599 985 3.2 1,010 1.0 0 19 12 8.4 28 .2 400 11 778 708 3.3 1,320 4.1 .1 28 18 8.9 

29 .2 82 9.3 993 265 2.6 1,110 17 .1 44 29 7.4 

30 .2 34 8.3 1,390 2.1 677 14 0 43 25 5.0 

31 1.1 - 8.8 1,560 1.9 _ 7.4 48 45 

Second- Runoff In Month Maximum Minimum Mean foot-days acre-feet 

October 62.7 8.3 0.2 2.02 124 November 13,016.1 1,280 2.1 435 25,860 December 15,337.0 2,320 8.3 495 30,420 

Calendar year '..: 119,587.5 4,200 .2 328 237,200 

January 10,132.1 1,560 4.8 327 20,100 February 16,255 1,460 16 561 32,240 March 13,416.7 2,870 1.9 433 26,610 April 5,028.6 1,320 .5 168 9,970 May 510.8 190 .8 16.5 1,010 June 12.8 4.4 .43 25 July 1,340.6 298 0 43.2 2,660 August 1,177.8 136 4.6 38.0 2,340 September 1,810.9 256 5.0 60.4 3,590 

Water year 1947-48 78,121.1 2,870 0 213 154,900 

Peak discharge (base, 1,800 sec.-rt.).- Dec. 17 (4 a.m.) 2,500 sec.-ft.; Mar. 4 (6 a.m.) 3,140 sec.-ft. 
		

		

		

		

		

		

		 	

		

	 	

CALCASIEU RIVER BASIN 17 

Calcasieu River near Glenmora, La. 

Location.- Wire-weight gage, lat. 30°59'40", long. 92°40.25", in SEI1SE4, sec. 4, T. 1 S., 

H. 3 W. Louisiana meridian, at bridge on State Highway 113, 1.0 mile upstream from 

Prairie Branch and 4.6 miles northwest of Glenmora. Datum of gage is 110.77 feet above mean sea level (Louisiana Geodetic Survey bench mark). 

Drainage area.- 499 square miles. 

RWTords available.- August 1943 to September 1948. 

Extremes.- ggITEUffi discharge during year 5.100 second-feet Feb. 13 (gage height, 14.00 feet); 

minimum 20 second-feet Aug. 18-24; minimum gage height, 4.29 feet Aug. 21, 22. 

1943-48: Maximum discharge, 27,400 second-feet (revised) Apr. 4, 1945 (gage height, 

18.0 feet, from graph based on gage readings); minimum, that of Aug. 18-24, 1948; minimum gage height, 4.28 feet Sept. 16, 1943. 

Revisions.- The figures of maximum discharge for some water years have been revised 

as shown In the following table. They supersede those published in the water-supply 

papers indicated. 

Water-Supply 

Paper 

Water 

year Date Gage height 

(feet) 

Discharge 

(second-feet) 

1038 

1038 

1058 

1944 

1945 

1946 

May 5 

Apr. 4 

Jan. 9 

g16.5 

g18.0 

16.20 

19,000 

27,400 

17,300 1088 1947 Jan.19 16.68 20,100 

g From graph based on gage readings. 

Remarks.- Records good. Gage read twice daily. 

Revisions.- Revised figures of discharge for high-water periods in the water years 1944 to 

1947 are given herewith. They supersede those published in Water-Supply Papers 1038, 

1058, and 1088. 

Day Discharge Day Discharge Day Discharge (water year) (aecond-feet) (water year) (second-feet) (water year) (second-feet) 

1943-44 1944-45 1945-46 

"" 

n8828

Jan. 18 7,200 Apr. 5 8,880 Feb. 13 May 5 14,500 Mar. 28 

6 15,600 1945-46 29 

7 

8 

10,000 

7,200 

Jan. 8... . 

9 

3,880 

15,600 

May 17 

18 

10 13,900 19 1944-45 11 13,900 Dec. 31. ... 6,080 12 10,600 1946-47 Jan. 1 .. . 5,550 13 7,200 Jan. 17 

5 3,750 14.. . 5,320 18 

Apr. 2 5,360 Feb. 10 5,210 19 

21,200 11 13,900 20 4 21,800 12 14,500 21 

22 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

c ; g 'ft iTMU;;, 7,"=g , (48Vo c12

53,2%2

88892cg8,2222 S.W.88 822W,28g(gg G ,*1 0.,)N MM .,NW 00WW ei 

C,4444; 

=•4;.$7 .64; M NNN .r = 

1 30 

2 30 

3 30 

4 28 

5 28 

6 28 

7 28 

8 28 

9 28 

10 28 

11 27 

685 237 1,590 375 119 83 41 27 27

386 262 1,800 331 107 83 41 25 26

216 360 245 95 66 39 24 25

188 540 

274 685 

630 890 

815 1,070 

970 970 

1,070 655 

1,330 475 

1,690 360 

2,550 317 

2,740 405 

2,940 655 

3,350 745 

3,350 815 

1,800 

1,500 188 119 56 39 23 24

1.330 181 153 51 39 23 23

1,410 160 188 46 39 23 23

1,410 153 281 46 37 24 22

1,330 140 223 44 34 23 22

1,330 133 262 41 32 23 23

1,260 119 262 39 32 22 23

1,260 113 223 39 32 22 24

12 27 1,190 107 188 37 37 22 26

13 27 1,020 107 133 37 41 22 37

14 27 41 22 39

15 27 

27 

930 222 146 34 

780 354 160 34 39 21 37

655 691 133 34 66 21

17 27 3,140 1,070 580 2,180 113 37 56 21 39 

18 27 46 20

19 27 

27 

21 26 

22 26 

3,140 1,260 2,940 95 34

3,350 1.410 

2,940 1,330 

440 

360 2,550 83 34 41 20 32

281 1,920 77 37 37 20 28

271 1,410 69 37 32 20 27 

253 780 64 37 30 20 2,740 1,260

2,370 1,020

26 1,920 715 375 58 34 28 20 25

1,330 655 780 715 

253 

26 281 202 56 32 28 20

25 26 281 160 54 32 26 21 24 

26 495 850 262 174 51 30 26 22 27 26 375 1,130 253 181 54 30 26 24 28 26 292 1,500 237 160 56 30 25 26 

26 253 1,500 230 167 56 28 24 27 

30 26 237 1,920 253 140 58 30 24 28 

28 223 1,920 317 66 - 25 28 

Peak discharge (base, 4,000 sec.-ft.).- Feb. 13 (5 p.m.) 5,100 sec.-ft. 

16 37 

37 

20 

26 23 

24 25 

26 24 

25 

26 29 26 

24 31 
__ 

-- 

-- 

- - - - -- - - - - - 

18 CALCASIEU RIVER BASIN 

Monthly discharge, in second-feet, of Calcasieu River near Olenmora. La.. 1943-44 

Per Runoff Second- Month Maximum Minimum Mean square foot-days mil. Inches Acre-feet 

August 25-31, 1943 15.3 29 27 27.6 0.05:. ,.',. ,1 353 September ........... .... ... 1.144 119 24 44.9 .090 .10 2 670 

.08 

November 4,222 515 October 1943 1,138 50 29 36.7 .074 2,260 35 141 .283 .31 8,370 

December 6,599 850 45 213 .427 .49 13.050 -

Calendar year - - - - - -

, January 1944 60,999 7,200 495 1,967 rt 3.94 4.55 121,030 

February 35,245 2,160 685 1,215 2.43 2.63 69,910 

March 21,286 2,010 133 687 1.38 1.5S 42,220 

April 23,114 2,160 119 770 1.54 1.72 45,850 

May 77,405 15,600 146 2,497 5.00 5.77 157,500 

June 4.163 540 43 139 .279 .31 8,260 

July 1,259 56 35 40.6 .081 .09 2,500 

August 1.584 126 35 51.1 .102 .12 3,140 

September 3,900 420 35 130 .261 .29 7,740 

Water year 1943-44 240,905 15,600 29 658 1.32 17.95 477,800 

October 1544 2,418 345 33 78.0 .156 .18 4,800 

November 8,980 685 31 299 .599 .67 17,810 

December 22,832 6,080 146 737 1.48 1.70 45,250 

Calendar year 1944 263,176 15,600 31 719 1.44 T 19.62 522,000 -,... January 1945 65,157 5,550 317 2,102 4.21 4.86 129,200 February 40,466 3,090 245 1,445 2.90 3.02 80,260 March 39,295 2,490 495 1,268 2.54 2.93 77,940 April 90,061 21,800 153 3,002 6 02 6.71 178,600 May 35,732 2,680 113 1,153 2.31 2.66 70,870 June 4,552 262 89 152 .305 .34 9,030 July 31,162 4.380 95 1,005 2.01 2.32 61,810 August 5,033 281 61 162 .325 .38 9.980 September 2,245 167 50 74.8 .150 .17 4,450 

Water year 1944-45 347,933 21,800 31 953 1.91 25.94 690,100 

October 1945 18,387 2,050 72 593 1.19 1.37 36,470 November 11.660 1,920 153 389 .780 .87 23,130 December 27,003 1,500 317 871 1.75 2.01 53,560 

Calendar year 1945 370,753 21,800~ 50 1,016 2.04 27.64 735,300 ,.. -- -... January 1946 127,282 15,600 405 4,106 8.23 9.49 252,500 February 86,660 14,500 930 3,095 6.20 6.46 171.900 March 50,182 8,320 271 1,619 3.24 3.74 99.530 April 12,369 2,050 113 412 .826 .92 24,530 May 56.066 7,760 89 1,809 3.63 4.18 111,200 June 28,107 4,720 119 937 1.88 2.09 55,750 July 15,956 1,500 110 515 1.03 1.19 31,650 August 4,850 750 58 156 .313 .36 9.620 September 7,988 930 64 266 .533 .60 15,840 

Water year 1945-46 446,510 15,600 58 1,223 2.4:. 33.28 885,700 

October 1946 8,104 890 86 261 .523 .60 16.070 November 31,699 3,570 123 1,057 2.12 2.36 62,870 December 39,677 2,940 283 1,280 2.57 2.96 78,700 -- Calendar year 1946 468,940 15,600 58 1,285 2.58 34.95 930,200 

January 1947 February 

March 

April 

May 

June 

July 

August 

September 

• 

142,960 

14,729 

34,090 

39,245 

8,151 

5,353 

1,587 951 1,023 

19,000 1,590 

3,140 

5,100 

1,020 655 

146 

37 

64 

750 

253 

281 

216 

83 

CI 

32 

28 

27 

4,612 526 1,100 

1,308 263 

178 

51.2 

30.7 

34.1 

9.24 

1.05 

2.20 

2.62 

.527 

.357 

.103 

.062 

.068 

10.65 

1.10 

2.54 

2.92 

.61 

.40 

.12 

.07 

.08 

283,600 

29,210 

67,620 

77,840 

16,170 

10,620 

3,150 

1.850 

2,030 

Water year 1946-47 327,569 19,000 27 897 1.80 24.41 649,800 

October 1947 844 30 26 27.2 .055 November 13,010 1,020 27 434 .870 December 46,769 3,350 188 1,509 3.02 

Calendar year 1947 308,712 - 19,000 26 846 T 1.70 

January 1948 

February 

March 

April 

May 

June 

27,696 

62,050 

25,147 

16,958 

3,802 

1,232 

1,920 

4,720 

1,800 

2,940 281 

83 

237 1,020 230 

107 

51 

28 

893 2,140 911 

565 

123 

41.1 

1.79 

4.29 

1.63 

1.13 

.246 

.082 July 

August 

September 

1,103 704 

826 

66 

28 

39 

24 

20 

22 

35.6 

22.7 

27.5 

.071 

.045 

055 

„, , A N W 

. .

. . ; . W g863 2e0,'E.°, 2g: 2: ,t'f.,g

1,670 

25,800 

92,760 

612,400 

54,930 

123,100 

49,880 

33,640 

7,540 

2,440 

2,190 

1,400 

1,640 

Water year 1947-48 ...... 200,141 4,720 20 547 1.10 14.85 357,000 

Time basis: Central War Time up to 2:00 a.m., Sept. 30, 1945; central standard time thereafter. To convert war time to standard time, subtract 1 hour. 
CALCASIEU RIVER BASIN 19 

Calcasieu River near Oberlin, La. 

Location.- Water-stage recorder, lat. 30'38.75", long. 92°48.50", in NkNE1 sec. 7, T. 5 

6., H. 4 W., at bridge on State Highway 52, 3 miles northwest of Oberlin and 15 miles 

upstream from Whiskey Chitto Creek. Datum of gage is 39.43 feet above mean sea level, 

datum of 1929 (Louisiana Geodetic Survey bench mark). 

Drainage area. 753 square miles. 

Re2crds available. August 1922 to January 1925, September 1938 to September 1948. 

Average discharge.- 12 years (1922-24, 1938-48), 1,298 second-feet. 

Extremes.- Maximum discharge during year. 5,800 second-feet Feb. 17 (gage height, 15.56 

-fe-Ftr minimum, 40 second-feet Aug. 24 (gage height, 3.28 feet). 

1922-25, 1938-48: Maximum discharge, 34,700 second-feet Apr. 7, 1923 (gage height, 

18.48 feet, datum then is use, or about 21 feet, present datum), from rating curve 

extended above 14,000 second-feet; minimum, that of Aug. 24, 1948. 

Flood of 1886 reached a stage about 1 foot higher than that of Apr. 7, 1923. 

Remarks.- Records good except those for periods of no gage-height record, which are fair. 

Paper mill at Elizabeth pumps about 5 second-feet from wells which is later discharged 

Into Mill Creek 20 miles above station. This discharge is continuous and fairly constant. 

Rating tables, water year 1947-48 (gage height, in feet, and discharge, in second-feet) (Shifting-control method used May 19 to July 7) 

Oct. 1 to July 7 July 8 to Sept. 30 

3.5 44 6.0 443 12.0 2,730 3.3 42 

4.0 92 6.5 580 13.0 3,330 3.5 61 

4.5 149 7.0 736 14.0 4,060 4.1 122 5.0 221 9.0 1,430 15.0 5,040 5.5 520 11.0 2,230 15.4 5,530 

Discharge, in aecond-feet, water year October 1947 to September 194s 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 

2 

3 

4 

5 

61 

60 

58 

59 

56 

55 

56 

54 

53 

60 

1,070 

1,070 

1,040 900 

656 

S51 3,670 523 3,200 510 2,950 496 2,730 496 2,730 

2,730 

3,330 

3,330 

4,710 

4,610 

a380 

a400 

a400 

s420 

3400 

257 

230 

199 

183 

169 

93 

89 

105 

105 

95 

58 

56 

56 

66 

66 

51 

46 

51 

52 

51 

52 

51 

52 

52 

51 

6 

7 

8 

109 

54 

53 

53 

53 

53 

66 

77 

69 

92 

89 

523 580 610 704 641 834 818 1,000 1,250 1,180 2,890 

2,59J 

2,780 

3,070 

3,20) 

4,060 

3,460 

2,980 

2,570 

,.410 

a340 

309 

a280 

a280 

a260 

355 

309 

176 

392 

404 

95 

86 

75 

75 

76 

66 

67 

76 

85 

113 

50 

51 

52 

51 

51 

49 

50 

48 

48 

52 

11 

12 1 

13 

14 

15 

52 

52 

51 

49 

48 

117 1,460 248 1,500 198 1,690 141 2,100 157 3,300 

1,210 

1,140 

1,430 

1,690 

1,610 

3,070 

3,070 

3,460 

3,750 

4,230 

2,230 

2,063 

1,930 

1,770 

1,650 

a240 

a220 

a240 

a280 

267 

298 

309 

298 

238 

213 

76 

86 

78 

68 

68 

116 

109 

81 

69 

66 

52 

51 

49 

49 

48 

53 

53 

60 

61 

73 

16 47 238 4,710 1,430 3,400 1,580 238 183 69 66 49 67 

18 

19 

20 

, 

4' 

46 

46 

230 5,530 248 5,533 469 4,710 441 3,980 

1,280 

1,250 

1,320 

1,390 

5,530 

4,930 

4,060 

3,460 

1,430 298 1,290 392 1,070 672 867 1,283 

183 

183 

144 

143 

67 

67 

67 

65 

66 

66 

70 

73 

48 

47 

45 

44 

65 

63 

61 

59 

21 

22 

23 

24 

25 

46 

48 

48 

47 

47 

641 3,600 688 3,600 934 3,460 1,250 3,200 1,780 2,890 

1.580 

:,690 

1,810 

1,850 

1,730 

3,200 

3,900 

3,820 

3,530 

3,460 

736 2,060 656 2,460 720 2,320 641 1,970 523 1,500 

127 

122 

112 

101 

102 

62 

61 

61 

62 

60 

71 

66 

61 

56 

56 

42 

44' 

42 

42 

46 

58 

55 

51 

50 

48 

26 

27 

28 

29 

30 

47 

47 

47 

4) 

48 

1,140 2,510 1,580 968 2,100 1,940 934 1,580 2,780 1,000 1,070 3,200 1,040 736 3,750 3,200 

2,780 

2,460 

2,270 -

496 1,000 482 537 456 404 430 299 392 267 

101 

102 

98 

35 

92 

53 

54 

54 

55 

59 

51 

51 

52 

56 

61 

51 

58 

60 

56 

55 

49 

46 

45 

44 

46 31 53 580 4,060 - 380 88 66 54 

Month Secondfoot-days Maximum Minimum Mean Runoff in 

acre-feet 

October 1,570 61 46 50.6 3,110 November 

December 13,223 

68,414 1,280 

5,530 53 

523 441 2,207 26,230 

135,700 

Calendar year 194/ 512,280 21,600 46 1,404 1,016,000 

January 

February 

March 

April 

Kay 

June 

July 

August 

September 

46,594 

99,690 

55,969 

20,412 

6,005 

2,165 

2,138 

1,538 

1,612 

4,060 

5,530 

4,710 

2,460 404 

105 

116 

60 

73 

496 2,270 380 

220 

89 

53 

51 

42 

44 

1,503 

3,438 

1,805 880 

194 

72.2 

69.0 

49.6 

53.7 

92,420 

197,700 

111,003 

40,490 

11,910 

4,290 

4,240 

3,050 

3,200 

Mater year 1947-48 319,330 5,530 42 872 633,300 

Peak discharge (base, 8,000 sec.-ft. .- No peak above base. 71-7-6-Fke-heigh record discharge computed on basis of weather records and records for nearby 

stations. Oage-height record Apr. 15 to Aug. 9 computed from. twice-dally readings of wire-weight gage. 
20 CALCASIEU RIVER BASIN 

Calcasieu River near Kinder, La. 

Location.- Water-stage recorder, lat. 30°30'10", long. 92°54'55", in NW1SE1 sec. 30, T. 

b S., R. 5 W., at bridge on U. S. Highway 190, 0.5 mile downstream from Whiskey Chitto 

Creek and 4 miles west of Kinder. Datum of gage is 12.02 feet above mean sea level, 

datum of 1929 (Louisiana Geodetic Survey bench mark). 

Drainage area.- 1,700 square miles. 

Records available.- August 1922 to January 1925, October 1938 to September 1948. 

Average discharge.- 12 years (1922-24, 1938-48), 2,921 second-feet. 

Extremes.- Maximum discharge during year, 10,900 second-feet Dec. 17 (gage height, 15.61 

reet); minimum. 183 second-feet Aug. 19 (gage height, 2.04 feet). 

1922-25, 1938-48: Maximum discharge, 68,000 second-feet Dec. 23, 1923, corrected 

(gage height, 21.69 feet, datum then in use, or about 23.5 feet, present datum), from 

rating ,urve extended above 40,000 second-feet; maximum gage height, 24.7 feet Aug. 11, 

1940 (discharge, 64,400 second-feet); minimum discharge, that of Aug. 19, 1948. 

Flood in 1913 reached a stage about 0.3 foot higher than that of Aug. 11, 1940. 

Remarks.- Records good. Discharge above about 2,000 second-feet computed by using rate 

of change of stage as a factor. Paper mill at Elizabeth pumps about 5 second-feet 

from wells which is later discharged into Mill Creek 36 miles above station. This 

discharge is continuous and fairly constant. Water is diverted during period April to 

September at points lust above station and 5 miles above station for irrigation. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

365 464 1,510 1.470 8,900 4,600 1,060 709 416 306 234 352 2 358 400 1,470 1,350 7.850 5,330 1,060 643 362 262 231 330 3 355 480 1,430 1.390 6,690 6,780 1,060 594 327 265 231 309 4 358 577 1.390 1,590 5,650 7,200 1,060 544 324 271 262 299 5 355 676 1,240 1,510 4.620 7,040 1,060 528 3.21 284 262 312 

6 352 544 1,160 1,350 4,180 7,200 985 544 306 318 244 259 7 349 512 1.510 1,280 4,150 6,630 915 845 309 330 240 262 8 346 676 1,920 1,310 4,150 5,770 880 1,060 290 340 253 296 9 336 743 2,360 1,390 4,820 5,010 845 1,280 290 318 234 102 10 336 870 3,400 1,510 5,820 4,330 828 1,280 287 340 231 544 

11 333 1,430 3.650 1,710 6,060 3,990 794 950 284 512 228 560 

12 333 1,280 Z.840 1,960 6,170 3,660 777 760 278 610 222 464 

13 330 915 4,270 3,250 6,970 3,360 862 692 265 496 222 480 

14 327 1,020 5,020 3,710 7,870 2,990 1,160 709 296 416 222 480 

15 321 1,310 6,700 3,480 7,930 2,670 1,240 643 287 374 216 448 

16 318 1,350 9,170 3,180 7,580 2,550 1,200 577 268 349 207 416 

17 318 1,590 10,600 2,850 7,580 2,400 1,280 512 268 312 201 432 

18 318 2,050 10,900 2,480 7,060 2,200 1.200 512 265 336 222 432 

19 318 2,700 10,100 2.250 6,210 2,010 1,120 496 268 333 204 387 

20 315 2,430 9,070 2.330 5,270 1.790 1,280 448 259 333 219 358 

21 312 1,870 6,730 2,500 4,850 1,590 1,710 432 262 416 222 340 

22 318 1,750 5,040 2,600 6,150 1,510 2,250 394 259 374 222 327 

23 324 2,920 4,460 2,700 6,590 1,470 2,550 390 253 336 219 318 

24 343 3,360 4,140 2,880 7,040 1,510 2,550 371 253 302 219 309 

25 333 2,880 3,780 2,910 7,500 1,430 2,200 352 271 284 225 299 

26 324 2,820 3.480 2.910 7,310 1,350 1,670 378 256 256 315 290 

27 318 2,570 3,100 3,840 6,320 1,280 1,200 378 247 240 362 290 

28 315 1,960 2,600 6,050 5,580 1,200 985 374 274 262 362 290 

29 1,630 2,050 7 ,250 4,620 1,120 880 397 302 231 387 287 

30 31333. 8 1,550 1,630 8,170 1,120 794 480 321 225 374 287

31 390 1,390 3,080 1,090 464 231 352 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 10,369 390 312 334 20,570 November 45,327 3,360 400 1,111 89,900 December 129,110 10,900 1,160 4,165 256,100 

Calendar year 1947 1,135,205 35,600 265 3,110 2,252,000 

January 92,240 9,080 1,280 2,975 183,000 February 181,490 8,900 4.150 6,258 360,000 March 102,180 7,200 1.090 3,296 202,700 

April 37,455 2,550 777 1,248 74,290 

May 18,736 1,280 352 604 37,160 

June 8,668 416 247 289 17,190 July 10,262 610 225 331 20,350 August 7,844 387 201 253 15,560 September 10,759 560 259 359 21,340 

Water year 1947-48 654,440 10,900 201 1,788 1,298,000 

Peak discharge (base, 13,000 sec.-ft.).- No peak above base. 
		

	

		

		

		

		

		

		

		

		

			

		

				

		

		

				

		

		

					

			

		

		

					

				

					

- - - - - - - - - - - - - - 

CALCASIEU RIVER BASIN 21

Whiskey Chitto Creek near Oberlin, La. 

Location.- Water-stage recorder, lat. 30°41'55", long. 92°53'35", in NE1NE1 sec. 20, T. 

4 S., R. 5 W., at bridge on State Highway 52, 1 mile downstream from Tenmile Creek, 

8 miles upstream from Bundick Creek, and 10 miles northwest of Oberlin. Datum of gage 

is 46.24 feet above mean sea level (Louisiana Geodetic Survey bench mark). 

Drainage area.- 510 square miles. 

Records available.- January 1939 to September 1948. 

Extremes.- Maximum discharge during year, 3,350 second-feet Dec. 16 (gage height, 13.80 

feet); minimum daily, 120 second-feet Aug. 17-23. 

1939-48: Maximum discharge, 35,000 second-feet Aug. 9, 1940 (gage height, 23.42 

feet); minimum observed, 102 second-feet Sept. 19. 1939 (gage height, 3.72 feet). 

Maximum stage known, 25.7 feet in June 1886, from floodmarks preserved by local 

residents 

Remarks.- Records good except those for periods of no gage-height record, which are fair. 

Rat!ng tables, water year 1947-48 (gage height. in feet, and discharge, In second-feet) (Shifting-control method used Nov. 1-10) 

Oct. 1 to Nov. 10 Nov. 11 to Sept. 30 

4.1 151 0.8 108 7.0 797 4.5 214 4.5 226 9.0 1,410 

5.0 302 5.5 407 11.0 2,140 6.0 496 6.0 513 14.0 3,440 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan r Feb. ilar--1 Apr May June July f Aug. Sept. 

1 170 189 369 427 2,570T 1,080 098 7G 252 164 i 140 157 

2 169 181 050 479 2,230 1,870 388 235 162 I 140 148 

3 170 275 332 701 1,760 2,400 388 244 223 1661 179 143 

4 169 275 332 758 1,180 2,060 378 244 214 171 223 138 5 169 248 .578 563 961 1,690 378 244 209 181 174 135 

6 164 231 617 479 990 1,620 369 407 205 191 154 135 7 162 388 932 437 990 1,580 360 659 202 202 143 135 8 162 457 1.080 417 903 1,450 350 687 198 188 145 135 9 160 330 1,250 407 1,470 1,250 350 816 195 189 140 198 10 160 359 1,350 398 2.020 1,050 341 513 195 191 137 350 

11 160 513 1,480 407 2,020 1,080 332 369 191 378 134 252 12 158 350 1,550 427 2,140 1,020 332 320 191 279 132 235 13 157 479 1,550 673 2,780 845 332 332 202 212 130 214 14 156 604 1,800 961 2,910 729 350 388 191 207 126 191 15 156 604 2,610 1.080 2,740 645 398 332 184 205 124 182 

16 154 701 3,300 961 2,440 617 645 296 179 191 124 214 17 152 1,080 3,210 687 1,760 590 590 288 177 176 120 224 18 152 1,480 2,990 590 1,180 590 417 279 174 172 120 193 19 152 1,310 2,740 590 900 563 360 252 177 167 120 172 20 154 903 1,690 576 820 525 332 235 179 162 120 162 

21 162 816 961 525 '790 502 314 226 174 164 120 154 22 162 604 758 513 790 490 296 223 167 157 120 150 23 183 961 673 550 990 479 288 214 167 154 120 147 24' 178 990 617 563 1,830 513 288 212 164 152 130 143 25 166 1,110 563 563 2,190 537 279 207 162 147 140 142 

26 164 1,150 513 673 2,020 490 296 211 160 143 155 138 27 160 787 490 1,350 1,800 447 296 221 157 140 152 138 28 157 513 468 2,480 1,410 427 323 226 157 140 152 140 29 156 437 447 2,480 1,180 437 350 279 157 138 164 140 30 160 098 437 2,650 427 305 314 157 154 184 140 31 169 427 2,820 407 - 279 147 171 

Per Runoff Second - Month Maximum Minimum Mean square foot -days mile Inches Acre-feet

October 5,022 183 152 162 0.318 0.37 9,960 November 18,723 1,480 181 624 1.22 1.37 37,140 December 36,264 3,300 332 1,170 2.29 2.64 71,930 

Calendar year 1947 315,794 8,840 152 865 1.70 23.04 626,300 

January 27,185 2,820 398 877 1.72 1.98 53,920 February 47,764 2.910 790 1,647 3.23 3.48 94,740 March 28,410 2,400 407 916 1.80 2.07 56,350 April 10,823 645 279 361 .708 .79 21,470 May . 10,060 816 207 325 .637 .73 19.950 June 5,595 252 157 186 .365 .41 11,100 July 5,590 378 138 180 .353 .41 11,090 August 4,433 223 120 143 .280 .32 8,790 September 5,145 350 135 172 .337 .38 10,200 

Water year 1947-48 205,014 3,300 120 560 1.10 14.95 406,600 

Peak discharge (base, 3,000 eec.-ft.).- Dec. 16 (6 p.m.) 3,350 sec.-ft 

ITOTe.- No gage-heTght record Feb. 16--23, Aug. 17-25; discharge computed on basis of recorded range 

inTinie, weather records, and records for nearby stations. 
		

			

				

		

		

			

					

		

		

			

					

		

			

			

		

			

		

		

		

							

22 CALCASIEU RIVER BASIN 

Bundick Creek near Dry Creek, La. 

Location.- Water-stage recorder, lat. 30040.55", long. 93'02.15", on line between NEI and 

NWt sec. 25, T. 4 S.. R. 7 W. at bridge on State Highway 251, 1 mile northeast of 

town of Dry Creek and 8 miles upstream from mouth. Datum of gage is 56.92 feet above 

mean sea level (Louisiana Geodetic Survey bench mark). 

Drainage area.- 238 square miles. 

Records available.- January 1939 to September 1948. 

Extremes.- Maximum discharge during year, 1,730 second-feet Dec. 15 (gage height, 12.86 

beet); minimum daily, 55 second-feet Aug. 20-25. 

1939-48:. Maximum discharge, 22,000 second-feet Aug. 10, 1943 (gage height, 19.12 

feet, present datum, from floodmark), from rating curve extended above 10,000 secondfeet by velocity-area method; minimum, 49 second-feet on many days in September end 

October 1939; minimum gage height, 2.53 feet, present datum, Sept. 24, 25, 1939. 

Remarks.- Records good except those for periods of no gage-height record, which are fair. 

Rating tables, water year 1947-48 (gage height: in feet, and discharge, in second-feet) (Shifting-control method used Oct. 1 to Nov. 13) 

Oct. 1 to May 8 May 9 to Sept. 30 

3.1 68 5.0 257 11.0 1,200 2.7 49 4.0 153 3.5 99 6.0 389 12.0 1,420 3.1 78 4.5 200 4.0 141 7.0 533 13.0 1,780 3.5 111 5.1 270 4.5 195 9.0 846 

Discharge, in second-feet, water year October 194; to September 1948 

Day Oct. Nov. Dec. Jan. T Feb. Mar. Apr. May June July Aug. Sept. 

1 73 83 141 172 1,400 459 132 105 105 a70 64 '2 2 73 172 132 213 1,320 91S 132 96 92 a75 67 'C 3 72 178 128 296 1,120 910 132 91 85 a70 66 68 4 72 166 123 335 625 593 128 89 83 a70 66 67 5 73 119 146 290 459 431 123 88 82 a70 66 67 

6 72 95 290 201 459 533 123 99 81 a75 66 66 7 72 106 459 1'2 417 563 219 207 80 84 65 67 8 72 231 533 161 403 488 115 283 80 78 66 69 9 72 219 608 156 790 417 115 270 80 77 65 234 10 71 212 702 172 910 445 115 239 79 89 65 150 

11 71 247 798 238 926 459 111 153 79 128 66 97 12 70 128 878 348 1,170 403 107 124 78 92 84 91 13 69 172 977 533 1,340 348 123 111 78 99 64 96 14 69 309 862 578 1,140 283 195 111 77 100 62 91 15 69 a380 1,540 578 943 238 290 119 a75 93. 61 83 

16 69 a360 1,540 445 766 219 302 111 a75 82 a60 77 17 69 a420 1,580 361 533 213 290 102 a75 76 a60 79 18 69 a900 1,610 290 389 207 201 108 a75 71 a60 79 18 69 782 1,580 264 335 207 136 94 a75 69 a60 74 20 68 375 1,030 250 a300 195 119 92 a75 72 a55 69 

21 69 348 389 244 a600 183 111 89 a70 73 a55 68 22 69 322 309 250 a750 178 105 86 a70 71 a55 67 23 68 518 270 250 a700 178 101 86 a7066a55 24 69 403 244 264 1,010 172 97 84 a70 V7 67 25 69 533 225 296 1,030 172 99 83 a70 66 a55 66 

26 68 548 207 389 977 166 146 84 a70 66 67 67 27 69 389 195 969 878 156 115 88 a70 65 75 66 28 68 225 183 1,260 702 146 123 90 a70 65 83 67 29 68 172 178 1,160 548 141 146 100 a75 66 87 68 30 69 151 172 1,400 141 128 128 a75 65 83 68 31 83 166 1,420 - 141 124 65 76 

Second- Per Runoff Month Maximum Minimum Mean eqUare foot-days mile Inches Acre-feet

October 2,182 83 68 70.4 0.296 0.34 4,330 November 9,263 900 83 309 1.30 1.45 18,370 December 18,195 1,610 123 587 2.47 2.84 36,090 

Calendar year 1947 145,126 4,9t0 68 398 1.67 22.68 287,900 

January 13,955 1,420 156 450 1.89 2.18 27,680 February 22,938 1,400 300 791 3.32 3.58 45,500 March 10,301 916 141 332 1.39 1.61 20,430 April 4,279 302 97 143 .601 .67 8,490 May 3,734 283 83 120 .504 .58 7,410 June 2,319 105 70 77.3 .325 .36 4,600 July 2,378 128 65 76.7 .322 .37 4,720 August 2,016 87 55 65.0 .273 .32 4,000 September 2,436 234 66 81.2 .341 .38 4,830 

Water year 1947-48 93,996 1,610 55 257 1.08 14.68 186,400 

Peal.cd:3. Joi,214t2tat,)11,11.1 -.- Dec. 15 (2 p.m.) 1,730 sec.-ft. e g record; disc arge computed on basis of weather records and records for nearby stations. 
CALCASiEU RIVER BASIN 23 

Beckwith Creek near DeQuincy, La. 

IkcatIon.- Wire-weight gage, lat. 30'28,10", long. 93°21,5,)", In !;',.;11 sec. 11, T. 7 S.,1.. 10 4 

at bridge on State Highway 7, a quarter of a mile upstream from New Orleans, Texas 

Mexico Railway bridge, 2 miles upstream from unnamed tributary, and 4 miles northeast 

of DeQuincy. 

Drainage area.- 148 square miles. 

Records available.- August 1945 to September 1948. 

lAtremes.- Maximum discharge during year, 1,370 second-feet Jan. 28 (gage height, 15.0 

feet, from graph based on gage readings); minimum, 0.6 second-foot Aug. 21-24, Sept. 28, 

30; minimum gage height, 1.14 feet Aug. 22. 23, Sept. 30. 

1945-48: Maximum discharge, 5,650 second-feet (revised) June 1, 1946 (gage height, 

20.8 feet, from graph based on gage readings); minimum, that of Aug. 21-24, Sept. 28, 

30, 1948; minimum gage height, that of Aug. 22, 23, Sept. 30, 1948. 

Revisions: The maximum discharges for the water years 1946 and 1947 have been 

revised to 5,650 second-feet June 1, 1946 (gage height, 20.8 feet, from graph based on 

gage readings), and 4,960 second-feet, June 21, 1947 (gage height, 20.35 feet), superseding figures published in Water-Supply Papers 1058 and 1088, respectively. 

Remarks.- Records good except those below 1 second-foot and those for periods of doubtful 

gage-height record, which are poor. Gage read twice daily. 

Revisions.- Revised figures of discharge, in second-feet, for the high-water period in the 

water year 1946, superseding those published in Water-Supply Paper 1058 are given herewith: 

June 1 4,380 

Second-feet Per square Runoff in Runoff in Month Maximum Minimum Mean days mile inches acre-feet 

June 19,706 4.380 28 657 4.44 4.95 39,090 

Water year 1945-46 115.092.7 4,380 4.9 315 2.13 28.92 228,300 

Calendar year 1946 112.050.1 4,380 4.9 307 2.07 28.14 222,200 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug Sept. 

1.1 

1.0 

.9 

.8 

1.4 

1.4 

1.8 

1.9 

1.7 

3.0 

8.3 

6.9 

6.2 

6.9 

16 

22 

28 

35 

48 

44 

908 

862 

802 

667 

409 

223 

382 

467 

270 

298 

17 

16 

15 

15 

14 

16 

12 

9.6 

8.4 

7.5 

7.8 

6.6 

..8 

4.3 

3.8 

11 

6.3 

7.5 

4.9 

7.2 

1.6 

1.6 

1.6 

1.5 

1.9 

1.7 

1.5 

1.4 

1.4 

1.3 

6 

781 

9 

10 ' 

1.3 

2.4 

2.2 

2.0 

1.8 

2.6 

3.4 

3.1 

3.0 

19 

17 

17 

23 

65 

94 

35 

27 

24 

21 

20 

215 

156 

256 

447 

391 

697 

286 

207 

207 

238 

14 

13 

12 

12 

12 

8.7 

11 

9.0 

8.8 

9.0 

3.6 

3.4 

3.2 

3.1 

3.2 

11 

4.9 

3.7 

2.9 

2.7 

1.8 

2.0 

1.7 

2.2 

11 

1.1 

1.0 

.8 

.9 

1.0 

11 

12 

13 

14 

15 

1.7 

1.6 

1.5 

1.4 

1.3 

19 119 12 119 7.5 339 29 667 207 1,220 

18 

37 

86 

135 

122 

355 

533 

510 

391 

278 

156 

129 

104 

76 

67 

11 

11 

158 

223 

149 

8.7 

8.4 

7.8 

7.3 

6.6 

3.1 

3.1 

3.4 

6.6 

3.8 

41 

28 

14 

41 

92 

5.4 

3.2 

2.2 

1.4 

1.3 

.9 

.9 

1.0 

1.7 

2.3 

16 

17 

18 

19 

1.2 

1.1 

1.0 

1.0 

132 

82 

70 

52 

1,000 624 

533 

545 

122 

177 

122 

142 

254 

215 

129 

92 

52 

48 

46 

41 

135 

86 

39 

22 

6.3 

6.1 

5.7 

5.1 

3.1 

.2.7 

2.6 

2.5 

41 

17 

24 

30 

1.1 

1.1 

.9 

.9 

2.4 

2.4 

2.0 

1.7 

20 2.4 40 488 142 76 39 17 4.7 2.4 11 .8 1.6 

21 

22 

23 

24 

25 

2.4 

2.2 

2.0 

1.9 

1.8 

24 

28 

169 

82 

55 

196 

70 

50 

43 

37 

129 

98 

81 

98 

149 

S57 1,040 467 

911 

877 

35 

34 

32 

30 

27 

13 

12 

10 

9.1 

8.5 

4.5 

4.1 

3.9 

3.8 

3.8 

2.3 

2.2 

2.2 

2.1 

2.2 

6.6 

4.9 

4.1 

3.9 

3.5 

.6 

.6 

.6 

.6 

.8 

1.5 

1.3 

1.1 

1.1 

.9 

26 

27 

28 

29 

30 

31 

1.7 

1.6 

1.5 

1.4 

1.3 

1.2 

50 

38 

20 

13 

9.9 

28 

27 

24 

22 

21 

20 

254 

857 1,090 817 1,200 988 

583 

437 

409 

329 

24 

24 

22 

21 

20 

17 

85 

76 

54 

39 

24 

3.6 

4.3 

5.8 

9.9 

12 

10 

2.0 

2.0 

1.9 

1.8 

7.8 

3.3 

2.7 

2.4 

2.2 

1.9 

1.7 

1.0 

1.4 

1.7 

1.5 

1.6 

1.6 

.8 

.7 

.6 

.7 

.6 

Month Second -

foot -days Maximum Minimum Mean Per square 

mile 

Runoff 

Inches Acre-feet 

October 

November 

December 

48.1 1,180.3 

6,452.3 

2.4 207 1,220 0.8 

1.4 

6.2 

1.55 

39.3 

208 

0.010 

.266 

1.41 

0.01 

.30 

1.62 

95 2,340 

12,800 

- - - - -

Calendar year 1947 81,431.3 3,180 0.8 223 1.51 20.45 161,500 

- - - - - - January 

February 

March 

April 

May 

7,168 

13,356 

4,319 

1,321.6 232.4 

1,200 

1,040 697 

223 

16 

18 

76 

17 

8.5 

3.6 

231 

461 

139 

44.1 

7.50 

1.56 

3.11 

.939 

.298 

.051 

1.80 

3.36 

1.09 

.33 

.06 

14,220 

26,490 

8,570 

2,620 461 June 104.6 7.8 1.8 3.49 .024 .03 207 July 

August 

September 

438.3 

57.2 

38.3 

92 

11 

2.4 

1.7 

0.6 

0.6 

14.1 

1.85 

1.28 

.095 

.012 

.0086 

.11 

.01 

.01 

869 

113 

76 

Water year 1947-48 34,716.1 1,220 0.6 94.9 .641 8.73 68,860 

Peak discharge (base, 1,400 sec.-ft.).- No peak above base. 

Rote.- Moubfful gage-height record Oct. 6-12, 14-31; discharge computed on basis of weather rec- ordsd records for Hickory Branch at Iceman. 

905771 0 - 50 - 3 
	

24 CALCASIEU RIVER BASIN 

Hickory Branch at Kernan, La. 

Location.- Wire-weight gage lat. 30°30.05", long. 93°16'45", in MW-1: sec. 34, T. 6 S., R. 

9 W., at bridge on State Highway 7, 120 feet upstream from New Orleans, Texas & Mexico 

Railway bridge, 0.7 mile southwest of Kernan, 3 miles upstream from Cowoen Creek, and 

10 miles northeast of De Quincy. 

Drainage area.- 82.2 square miles. 

Records available.- August 1945 to September 1948. 

Extremes.- Maximum discharge during year, 2,280 second-feet Feb. 25 (gage height, 16.7 

feet, from graph based on gage readings); minimum, 0.1 second-foot on many days; minimum gage height, 2.07 feet Aug. 21. 

1945-48: Maximum discharge, 5,950 second-feet June 21, 1947 (gage height, 26.0 

feet, from graph based on gage readings); minimum, 0.1 second-foot on many days in 

1946, 1947, 1948; minimum gage height, that of Aug. 21, 1948. 

Remarks.- Records good except those below 5 second-feet, which are fair. Gage read twice 

daily. 

Rating tables, water year 1947-48 (gage height, in feet, and discharge. in second-feet) 

Oct. 1 to Dec. 15 Dec. 16 to Sept. 30 

2.5 0.2 2.9 9.1 4.5 115 2.3 0.2 3.0 15 8.0 511 2.6 .5 3.0 14 5.0 168 2.4 .3 3.4 38 10.0 789 2.7 1.9 3.6 47 5.4 212 2.5 .6 4.0 84 11.0 949 2.8 4.8 4.0 74 2.6 1.5 4.8 154 12.0 1,130 2.7 3.2 5.4 212 13.0 1,340 Note.- Same as following table above 2.8 6.1 6.0 279 15.0 1,820 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 0.1 1.2 2.4 10 392 127 5.0 3.2 0.3 4.4 0.1 0.1 2 .1 1.2 1.9 19 158 414 4.1 2.4 .3 2.8 .1 .1 3 .1 1.0 1.5 15 100 463 4.1 1.8 .2 2.2 .1 .t 4 .1 1.2 3.0 13 92 216 3.6 1.5 .2 5.0 .1 .1 5 .1 4.8 3.5 12 100 428 3.2 1.2 .2 10 .1 .1 

6 .1 2.4 2.4 9.4 104 745 2.8 1.9 .2 , a5.0 .1 .1 7 .2 4.1 1.9 8.6 88 252 2.8 1.5 .2 1.6 .1 .1 8 .3 3.8 22 ' 7.3 151 127 2.6 1.2 .1 .8 .1 .2 9 .3 3.0 44 6.9 463 136 2.4 1.2 .1 .6 .2 .3 10 .3 10 74 6.5 404 118 2.4 1.2 .7 .4 .7 .7 

11 a.3 39 53 13 212 109 2.2 1.0 .3 12 .7 .6 12 a.3 12 99 29 679 36 2.1 1.2 .3 5.7 .5 1.4 13 .3 5.2 439 286 699 31 7.7 1.0 .2 2.8 .4 2.6 14 .3 22 427 236 392 28 136 .8 .2 1.5 .3 1.8 15 .3 81 1,150 72 182 24 64 .6 2.8 .8 .2 .8 

16 .2 56 819 46 96 20 25 .5 1.5 .6 .1 .4 17 .3 18 381 31 60 18 12 .4 .9 .4 .1 .3 18 .3 12 128 15 43 17 8.1 .4 .6 1.8 .1 .2 19 .5 8.2 49 32 36 16 6.1 .3 .4 1.8 .1 .1 20 .5 8.2 34 a120 33 15 4.7 .3 .3 3.0 .1 .1 

21 1.0 30 27 127 481 14 3.6 .3 .3 2.6 .1 .1 22 .9 138 18 84 475 13 3.0 .2 .2 1.5 .. .1 23 1.2 102 14 72 279 14 2.2 .2 .2 1.0 .1 .1 24 1.2 50 12 172 744 14 1.9 .2 .- .4 .1 .1 25 .9 21 11 267 1,980 13 1.8 .2 .1 .3 .1 .1 

26 .8 13 9.4 335 848 10 27 .2 .1 .2 .1 .1 27 .8 7.2 8.6 1,010 279 8.6 25 .4 .1 .2 .2 .1 28 .8 5.2 7.7 844 163 7.3 15 .7 .1 .2 .2 .1 29 .9 3.8 6.9 789 212 6.1 8.6 .5 .1 .1 .3 .1 30 1.0 3.0 6.9 1,170 5.7 5.0 .4 3.0 .1 .2 .1 31 1.0 6.9 671 - 4.7 .3 .1 .2 -

Second- Per Runoff Month Maximum Minimum Mean square foot-days mile Inches Acre-feet 

October 15.5 1.2 0.1 0.50 0.0061 0.007 31 November 667.5 138 1.0 22.2 .270 .30 1,320 December 3,864.0 1,150 1.5 125 1.52 1.75 7,660 

Calendar year 1947 54,683.0 3,860 0.1 150 1.82 24.74 108,500 

January 6,528.7 1,170 6.5 211 2.57 2.95 12,950 February 9,945 1,980 33 343 4.17 4.50 19,730 March 3,450.4 745 4.7 111 1.35 1.56 6,840 April 394.0 136 1.8 13.1 .159 .18 781 May 27.2 3.2 .2 .88 .011 .01 54 June 14.3 3.0 .1 .48 .0058 .006 28 July 69.9 12 .1 2.25 .027 .03 139 August 6.0 .7 .1 .19 .0023 .003 12 September 11.2 2.6 .1 .37 .0045 .005 22 

Water year 1947-48 24,993.7 1,980 0.1 68.3 .831 11.30 49,570 

Peak discharge (base, 2,000 sec.-ft.).- Feb. 25 (2 p.m.) 2,280 sec.-ft 

a No gage-height record; discharge computed on basis of records for Beckwith Creek near De Quincy. 
SABINE RIVER BASIN 25 

Sabine River near Mineola, Tex. 

Location.- Water-stage recorder, lat. 32°36'45", long. 95°29'10", at bridge on U. S. 

Highway 69, 3.2 miles south of Mineola, Wood County, 4.5 miles upstream from International-Great Northern Railroad bridge, and 16.5 miles upstream from Lake Fork. 

Datum of gage is 304.2 feet above mean sea level, datum of 1929. 

Drainage area.- 1,445 square miles. 

Records available.- May 1939 to September 1948. 

Extremes.- Maximum discharge during year, 21,300 second-feet May 14 (gage height, 18.69 

feet); minimum, 0.7 second-foot Aug. 23-25. 

1939-48: Maximum discharge, 76,000 second-feet Apr. 1, 1945 (gage height, 24.00 

feet); maximum gage height, 24.37 feet June 8, 1943; no flow at times. 

Maximum stage from about 1919 to 1939, 20.6 feet Jan. 25, 1938, from information 

by local resident. 

Remarks.- Records good. No large diversion above station. 

Discharge. in second-feet. water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 

2 14 

13 50 50 505 

143 1,760 2,200 810 1,750 964 6,790 142 

117 92 

70 692 

410 135 

141 306 153 36 22 3 

4 12 11 44 

195 90 300 2,200 

4,040 1,130 1,340 6,510 7,480 IOC 90 54 

55 171 

139 209 

160 76 45 14 11 5 10 180 585 9,780 1,560 7,240 80 45 123 94 31 8.6 

6 

7 

8 

9 

10 

9.4 

9.0 

8.8 

8.6 

8.2 

98 

127 

379 

750 

770 

504 1,010 

2,960 

4,350 

6,400 

8,070 1,680 5,190 1,760 3,230 2,050 1,650 2,540 708 3,090 9,600 

6,860 

4,630 

1,920 

77 146 75 547 72 866 152 1,140 264 1.3,0 

86 

110 

78 

56 

41 

54 

35 

78 

131 

105 

26 

22 

17 

12 

10 

7.1 

5,7 

4.6 

3.6 

3.7 

11 

12 

13 

14 

15 

7.6 

7.3 

7.1 

7.3 

7.1 

314 

106 

55 

45 

61 

7,080 

7,160 

5,880 

4,320 

3,310 

312 3,570 223 3,830 195 3,830 169 3,370 148 2,790 

1,050 519 

313 

247 

223 

149 2,560 125 4,040 182 6,900 531 20,000 692 17,200 

33 

27 

23 

20 

17 

127 

118 

89 

156 

148 

7.8 

6.5 

5.2 

4.3 

3.4 

3.6 

3.6 

3.1 

2.7 

4.4 

16 

17 

18 

19 

20 

6.9 

6.9 

6.7 

6.7 

6.5 

167 

504 

750 

876 

585 

4,170 

5,200 

8,070 

10,500 

9,690 

154 2,350 324 2,000 435 1,510 353 1,020 295 583 209 

195 

181 

169 

163 

620 

551 

363 

188 

114 

10,500 

7,080 

5.030 

3,000 

1,470 

15 

14 

12 

12 

11 

96 

77 

60 

35 

26 

2.5 

1.8 

1.4 

1.4 

1.3 

7.1 

5.7 

4.6 

3.8 

3.1 

21 

22 

23 

24 

25 

6.4 364 6.0 1.030 6.0 1,440 6.2 1,720 6.4 2,050 

6,580 

4,540 

2,840 

1,690 

1,110 

396 

776 1,030 

1,010 784 

489 

685 

920 1,010 803 

157 

250 

839 1,580 

2,180 

79 

61 

52 

52 

78 

569 

213 

132 

100 

82 

9.8 

8.8 

8.0 

8.0 

8.6 

18 

13 

10 

7.6 

6.4 

1.1 

.9 

.7 

.7 

.8 

2.6 

2.4 

1.8 

1.6 

1.3 

26 

27 

28 

29 

30 

31 

21 

44 

39 

28 

53 

54 

2,380 

2,950 

3,350 

2,843 

1.590 

610 

276 

188 

157 

142 

246 

519 

858 1,130 970 

703 

661 

425 2,480 332 2,740 436 2,360 661 1,360 492 - • 196 

187 

223 

181 

148 

119 

87 

80 

99 

345 

520 

638 

8.0 

7.8 

8.8 110 

157 

5.5 

4.4 

8.8 143 

382 

42? 

1.3 

1.7 

2.2 208 

169 

74 

1.3 

1.2 

1.2 

1.2 

1.3 

Month Secondfoot-days Maximum Minimum Mean Per 

square 

mile 

Runoff 

Inches Acre-feet 

October 444.1 54 6.0 14.3 0.010 0.01 881 November 

December 25,620 

100,606 3,350 

10,500 44 

90 861 3,245 .596 

2.25 .66 2.59 51,210 

199,500 

Calendar year 1947 283,725.7 10,500 1.6 777 .538 7.29 562,800 - - - - - January 

February 

March 

April 

May 

June 

July 

August 

September 

50,273 

47,538 

73,783 

5,864 

85,030 

2,424.8 

3,097.7 

1,194.0 173.9 

9,780 

3,830 

9,600 692 20,000 692 

422 

306 

36 

148 

332 

157 

52 

45 

7.8 

4.4 

1.2 

1,622 

1,639 

2,380 195 2,743 80.8 

99.9 

38.5 

5.80 

1.12 

1.13 

1.65 

.135 

1.90 

.056 

.063 

.027 

.0040 

1.29 

1.22 

1.90 

.15 

2.19 

.06 

.03 

.004 

99,720 

94,290 

146,300 

11,630 

168,700 4,810 

6,140 

2,370 345 

Water year 194/-48 396,248.5 20,000 .7 1,083 .749 10.18 785,900 

Peak 1charge (base, 11,000 sec.-ft.).- Dec. 19 (7 p.m.) 11 100 sec.-ft.; Jan 5 (9 a.m.) 12,300 .";44fiNay 14 (5 p.m.) 71,300 sec.-ft. 
20 SABINE RIVER BASIN 

Sabine River near Gladewater, Tex. 

LocatlJn.- Water-stage recorder and wire-weight gage, lat. 32°32', long. 94°57', at 

bridge on U. S. Highway 271, half a mile downstream from Glade Creek and 1 mile soutnwest of Gladewater, Gregg County. Datum of gage is 243.85 feet above mean sea level 

(Texas Reclamation Department bench mark based on Geological Survey datum). 

Drainage area.- 2,846 square miles. 

Records available.- October 1932 to September 1948. 

Average discharge.- 16 years, 2,214 second-feet. 

Extremes.- Maximum discharge during year, 23,000 second-feet May 18 (gage height, 35.40 

Feet); minimum, 22 second-feet Aug. 26. 

1932-48: Maximum discharge, 138,000 second-feet Apr. 2, 1945 (gage height, 44.16 

feet, from floodmark), from rating curve extended above 91,000 second-feet; minimum, 

5.6 second-feet Aug. 16, 1939. Maximum stage known prior to 1945, 41.7 feet in May 1914 (discharge, 71,100 secondfeet), from information by local resident. 

Records good except those computed on basis of loop curves, which are fair. 

Small diversions above station for oil-field operations and municipal supply. 

Discharge. in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept 

1 133 236 3,260 1 830 0,110 2,200 4,100 966 1,160 202 699 171 

2 122 226 3,350 2,120 3,080 4,760 3,080 790 1,190 267 769 1,- 4 3 113 215 3,110 2 760 3.020 5,320 1,750 622 1,140 285 580 110 4 

5 106 105 202 

202 2,600 

1,990 3 200 

3,830 2,960 

3.020 5,800 

6,920 1,020 790 685 601 954 

666 285 

312 362 240 68 

75 

6 105 322 1,710 4 350 3,170 8,260 748 706 506 12 177 60 7 102 559 2,190 4 900 3,410 9,600 706 664 713 267 139 47 8 100 528 4,420 - 959 3,830 10,800 685 748 601 217 112 43 9 94 486 4,900 7,120 4,550 11,900 664 1,120 496 185 97 40 10 92 685 4,96C 7,650 5,000 12,100 622 1,600 475 182 88 41 

11 92 1,010 5,080 7 050 5,360 11.400 664 3,590 422 268 80 47 12 92 1.140 5,280 6 250 6,000 10,300 834 6,060 352 433 71 50 13 92 1,010 5,760 4,980 6,570 8,540 1,050 6,860 312 372 62 49 14 89 685 6.350 3 440 7,050 7,050 1,320 7,440 285 322 53 50 15 88 496 7,310 2,170 7,240 5,490 1,470 8,350 258 332 48 50 

16 

17 87 

87 412 8,350 382 9,000 1 550 1 430 7,080 

7,180 3,800 

2,480 1,780 2,040 11,300 20,000 233 211 332 

342 45 

42 50 

46 16 85 412 9,290 1 340 6,860 1,760 2,230 23,000 192 322 38 43 19 83 769 9,440 1 410 6,520 1,450 2,290 21,000 184 258 36 40 20 81 1,120 9,600 1,540 5,900 1,340 2,150 18,000 177 208 36 39 

21 79 1,320 10,500 1 680 5,280 1,270 1,630 15,200 168 177 4C 39 22 

23 

24 

25 

79 

77 

77 

79 

1,590 

1,710 

1,860 

2,040 

11.4C0 

13,100 

13,100 

11,900 

1 730 

1 810 

1 940 

2,070 

4,390 

3,470 

2,620 

2,230 

2,320 

2,510 

2,230 

2.180 

1,030 12,600 706 10,500 580 8,020 622 6,250 160 

150 

139 

134 

146 

125 

109 

98 

37 

31 

25 

23 

39 

19 

37 

40 

26 

27 

28 

29 

30 

31 

120 2.230 197 2.400 276 2,570 342 2,790 322 3,020 267 10,500 

8,440 

6,980 

5,490 

3,770 

2,460 

2,290 

2 960 

3 230 

3 230 

3,140 

.5,110 

2,040 

2,040 

2,020 

1,780 -

-

2,430 

2,820 

3,320 

3,830 

4,230 

4,390 

1,010 

1.190 

1,270 

1,230 

1,100 

4,550 

2,910 

1,920 

1,44C 

1,050 

1,050 

130 

119 

132 

185 

189 

91 

85 

79 

77 

74 

303 

26 

39 

51 

57 

46 

42 

41 

40 

4 

39 

39 

Month Secondfoot-days Maximum Minimum Mean Per 

square 

mile 

Runoff 

Inches Acre-feet 

October 

November 

December 

3,863 

32,627 

205,590 

342 3,020 

13,100 

77 

202 1.710 

125 0.044 1,088 .382 6,632 2.33 0.05 

.43 

2.69 

7,660 

64,710 

407,800 

Calendar year 1947 672,863 13,100 34 1,843 .648 8.82 1,335,000 

January 

February 

March 

102,060 

127,080 

162,800 

7,650 

7,380 

12,100 

1,340 

1,780 

1,270 

3,292 

4,382 

5,252 

1.16 

1.54 

1.85 

1.33 

1.66 

2.13 

202,400 

252,100 

322,900 April 

May 

June 

40,361 

199,592 

12,033 

4,100 

23,000 

1,190 

580 

601 

119 

1,345 

6,438 401 

.473 

2.26 

.141 

.53 

2.61 

.16 

80,050 

395,900 

23,870 July 

August 

September 

7,067 

4,191 

1,695 

433 

769 

171 

74 

23 

37 

228 

135 

56.5 

.080 

.047 

.020 

.09 

.05 

.02 

14,020 

8,310 

3,360 

Water year 1947-48 898,959 23,000 23 2,456 .863 11.75 1,783,000 

Peak discharge (base, 6,50C sec.-ft.).- Dec. 23 (10 p.m.) 13,400 sec.-ft.; Jan. 10 (6 a.m.) 7,650 sec.-ft.; Pa-.16 18 a.m.) 7,380 sec.-rt.; Mar. 10 (6 a.m.) 12,400 sec.-ft.; May 18 (8 a.m.) 23,000 sec.-ft. 

Note.- Discharge computed on basis of loop curves Dec. 8 to Jan. 1, Jan. 3-17, Feb. 9-29, Mar. 1- 197-FEY 11-29. 
					

- - - - 

SABINE RIVER BASIN 27 

Sabine River near Tatum, Tex. 

Location.- Water-stage recorder, lat. 32v221 , long. 94°28., at bridge on State Highway 

43, 5 miles upstream from Potter Creek, 5.2 miles northeast of Tatum, Rusk County, 

and 7 miles downstream from Cherokee Bayou. Datum of gage is 204.2 feet above mean 

sea level, datum of 1929 (levels by Corps of Engineers). 

Drainage area.- 3,586 square miles. 

Records available.- January 1939 to September 1948. 

Extremes.- Maximim discharge during year, 15,300 second-feet May 24 (gage height, 25.20 

feet); minimum not determined. 

1939-48: Maximum discharge, 123,000 second-feet Apr. 4, 1945 (gage height, 33.80 

feet, from graph based on gage readings), from rating curve based on extension of 

ratings for main•channels above 40,000 second-feet and measured overflow at gage 

height 31.5 feet; minimum observed, 9.1 second-feet Oct. 9, 1939. 

Maximum stage known prior to 1945, 32 feet in May 144, from Information by local 

residents. 

Remarks.- Records good except those for period of no gage-height record, which are poor. 

.,everal small diversions above station for oil-field operations and municipal supply. 

Discharge, in second-feet. water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July 1 Aug. Sept 

1 219 610 3,400 9,600 4,620 4,730 4,290 1,620 3,660 0,-;0 11C 2 201 452 3,000 8,900 4,560 5,220 4,400 1,470 2,050 33 30,5 94 3 188 380 3,150 7,780 4,460 5,490 4,340 1,300 1,660 32, 686 98 4 174 350 3,360 6,440 4,340 5,490 3,680 1,190 1,500 390 725 164 5 164 330 7,800 5,190 4,180 5,430 2,370 2.3,0 1,330 420 610 164 

6 161 310 3,900 4,620 4,120 5,550 1,540 1,470 1,120 420 446 13' 7 156 370 3,460 4,510 4,120 5,790 1,300 1,580 890 420 323 121 8 154 450 3,770 4,560 4,400 6,030 1,220 1,440 860 420 245 107 9 154 380 4,620 4,680 5,280 6,330 1,190 1,220 920 370 197 105 10 151 460 5,070 4,900 5,790 6,720 1,160 1,300 775 320 171 121 

11 146 562 5,250 5,190 6,030 7,250 1,080 2,460 700 322 151 126 12 144 700 5,190 5,550 6,580 7,880 1,050 4,820 654 447 139 105 13 139 860 5,190 5,910 7,040 8,500 1,190 5,910 588 802 129 88 14 135 1,050 5,130 6,150 7,110 9,080 1,860 6,390 536 804 121 84 15 132 1,300 5,250 6,390 7,180 9,400 2,340 6,720 463 588 105 81 

16 132' 1,350 5,490 6,390 7,110 9,500 2,200 6,780 452 483 98 78 17 132 1,100 5,850 3,150 7,040 9.400 2,160 6,720 410 462 91 76 18 129 900 6,150 5,E70 6,910 8,980 2,290 6,840 370 452 84 73 19 127 720 6,460 3,950 6,910 8,180 2,420 7,180 340 452 78 70 20 126 640 6,720 2,920 6,980 6,910 2,520 8,480 320 420 67 

21 126 760 6,980 2,850 7,110 5,070 2,470 10,200 300 360 ;2 61 22 126 1,250 7,250 3,300 7,320 4,120 2,200 12,100 281 320 73 58 23 124 1,550 7,460 3,520 7,390 4,840 1,700 14,000 262 272 73 5, 24 124 1,750 7,740 3,300 7,320 5,190 1,330 15,300 243 243 73 56 25 123 1,900 8,100 3,100 7,250 4,950 1,190 14,900 232 220 74 55 

26 131 2,100 8,580 3,100 7,040 4,290 1,620 13,600 230 202 73 54 27 176 2,400 9,140 3,890 6,650 3,740 2,020 12,400 222 197 80 55 28 370 2,600 9,700 4,620 5,970 3,580 2,020 11,300 224 186 85 54 29 430 2,900 10,000 4,900 5,310 3,580 1,900 10,000 252 178 76 54 30 567 3,200 10,000 4,840 3,800 1,780 8,540 310 169 85 54 31 700 9,920 4,730 4,020 6,390 162 108 

Per Runoff Second- Month Maximum Minimum Mean square foot-days mile nches Acre-feet

October 6,061 700 123 196 0,055 0.06 12,020 November 33,682 3,200 310 1,123 .313 .35 66,810 December 189,080 10,000 3,000 6,099 1.70 1.96 375,000 

Calendar year 194° 869,103 10,000 76 2,381 .664 9.01 1,724,000 

January 157,200 9,600 2,850 5,071 1.41 1.63 311,800 February 176,120 7,390 4,120 6,073 1.69 1.83 349,300 March 189,020 9,500 3,580 6,097 1.70 1.96 374,900 April 62,830 4,400 1,050 2,094 .584 .65 124,600 May 204080 15,300 1,190 6,612 1.84 2.13 406,600 June 22,174 3,660 222 739 .206 .23 43,980 July 11,511 804 162 371 .103 .12 22,830 August 5,845 725 72 189 .053 .06 11,590 September 2,527 164 54 87.6 .024 .03 5,210 

Water year 1947-48 1,061,130 15,300 54 2,899 .809 11.01 2,105,000 

SentTIT,7;.7-(r11.MT3;UCe;:)rt-.;11.3(3).6(?18;7;CY(9):(0 :e4.215(Nj.:T.) 57,00 sec.-ft. 

Note.- No rage-height record Nov. 8 to Dec. 2, Sept. 15-20, 29, 30; discharge computed on basis of range in stage, weather records, and records for nearby stations on Sabine River. 

ti70,7Gi7i.I. co 
		

28 SABINE RIVER BASIN 

Sabine River at Logansport, La. 

Location.- Wire-weight gage, lat. 31°58', long. 94°00', at bridge on U. S. Highway 84, 

SOU reet upstream from Texas & New Orleans Railroad bridge in Logansport, De Soto 

Parish, and 3 miles upstream from Bayou Castor. Datum of gage is 147.72 feet above 

mean sea level, datum of 1929. 

Drainage area.- 4,858 square miles. 

Records available.- July 1903 to September 1948. (January 1907 to September 1923, 

monthly records only in Water-Supply Paper 850.) U. S. Weather Bureau has collected 

gage-height records in this vicinity since 1903. 

Average discharge.- 42 years (1903-19, 1922-48), 3,287 second-feet. 

Extremes.- Maximum discharge during year, 13,200 second-feet Feb. 15, 16 (gage height, 

25.1b feet. from graph based on gage readings); minimum observed, 71 second-feet 

Sept. 29, 30. 

1903-48: Maximum discharge, 92,000 second-feet Apr. 8, 1945 (gage height, 44.07 

feet, from floodmark); minimum observed during periods of daily records, 16 secondfeet Sett. 2e,-28, Oct. 3, 4, 1939. 

* Maximum stage known prior to 1945, 39.4 feet in May 1884, present datum. 

Remarks.- Records good except those for periods of backwater or no gage-height record, 

which are fair. Gage read twice daily. Small diversion above station. 

Cooperation.- Gage-height record collected in cooperation with the U. S. Weather Bureau. 

Revisions (water years).- W 850: 1903-6 (monthly and annual means). 

Discharge. in second-feet. water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr7-j May June July Aug. Sept 

1 336 476 2,600 8,500 7,310 10,800 5,570 2,760 12,900 336 152 85 2 304 628 2,720 8,900 7,380 10,500 5,100 2,490 12,800 377 140 83 3 280 648 2,840 9,220 7,310 9,940 4,950 2,190 12,300 440 132 91 4 258 568 3,040 a9,460 7,040 9,380 4,950 1,900 10,600 540 134 99 5 244 4,6 3,210 9,700 6,740 9,060 4,950 1,730 7,660 530 316 98 

6 237 422 3,460 9,780 6,440 9,220 4,360 1,700 4,270 476 530 100 7 223 c422 a3,860 9,540 6,140 a9,380 3,290 1,940 2,370 494 548 124 8 210 c422 4,270 8,820 06,260 9,300 2,410 2,150 1,730 512 476 152 9 204 ac422 4,550 7,800 07,170 9,060 1,970 82,260 1,390 512 386 152 10 198 c494 4,850 6,620 08,290 8,740 1,830 1,940 1,450 476 304 132 

11 192 c762 5,100 5,740 c9,540 8,530 21,830 02,010 1,370 476 244 112 12 192 c858 5,250 5,350 10,800 8,360 1,900 c3,240 1,170 476 204 111 13 186 c932 5,300 5,400 12,200 8,220 2,450 06,270 81,040 422 180 112 14 186 01,010 85,350 5,570 13,000 8,290 c3,720 8,010 906 449 162 113 15 180 01,090 c5,400 5,740 13,100 8,430 4,600 9,220 834 648 152 118 

16 174 ae1,200 05,520 5,960 13,100 8,660 4,850 10,200 738 762 146 111 17 174 01,340 05,620 6,200 12,900 8,980 4,500 10,600 670 670 146 102 18 0168 01,390 c5,680 6,380 12,700 9,300 4,040 10.700 608 a568 135 100 19 0168 01,250 c5,790 6,560 12,400 9,700 3,550 10,400 568 494 127 899 20 c162 01,090 5,900 6,560 11,900 10,000 3,170 9,780 a512 449 116 94 

21 c162 984 6,020 6,140 11,500 810,400 3,040 9,220 476 431 107 94 22 157 906 6,260 5,570 11,400 10,700 3,000 8,820 440 413 100 91 23 157 1,250 6,440 5,350 11,300 11,300 2,920 8,580 413 377 93 89 24 152 1,630 6,560 5,400 11,200 11,400 2,760 8,580 386 328 87 85 25 152 2,040 a6,740 85,350 11,000 11,200 82,370 8,820 360 288 84 82 

26 alb./ 2,300 6,920 5,050 11,100 10,800 2,220 9,220 344 251 82 76 27 157 2,340 7,100 5,300 11,200 10,600 2,490 9,860 320 223 82 75 28 162 2,370 7,310 06,020 11,200 010,100 2,920 10,600 304 204 81 73 29 1,2 2,410 7,590 06,260 11,100 9,380 3,080 11,400 312 192 80 71 30 c210 2,490 7,800 06,920 8,080 3,000 12,100 320 174 79 71 31 c336 8,080 7,100 6,620 162 79 

Second- Per noff Month Maximum Minimum Mean square foot-days mile Inches Acre-feet

October 6,240 336 152 201 0.041 0,05 12,380 November 34,620 2,490 422 1,154 .237 .25 68,670 December 167,130 8,080 2,600 5,391 1.11 1.28 331,500 

Calendar year 1947 1,314,240 12,900 106 3,601 .741 10.06 2,607,000 

January 212,560 9,780 5,050 6,857 1.41 1.63 421,600 February 292,720 13,100 6,140 10,090 2.08 2.24 580,600 March 294,400 11,400 6,620 9,497 1.95 2.25 583,900 April 101,690 5,570 1,830 3,390 .698 .78 201,700 May 211,290 12,600 1,700 6,816 1.40 1.62 419,100 June 79,561 12,900 304 2,652 .546 .61 157,800 July 13,140 762 162 424 .087 .10 26,060 August 5,684 548 79 183 .038 .04 11,270 September 2,995 152 71 99.8 .021 .02 5,940 

Water year 1947-48 ..... 1,422,030 13,100 71 3,885 .800 10.88 2,821,000 

a No gage-height record; discharge computed on basis of estimated gage heights. 

c Backwater from Bayou Castor. 
- - - - - 

SABINE RIVER BASIN 29 

Sabine River near Milam, Tex. 

Location.- Water-stage recorder and wire-weight gage, lat. 31°28', long. 93°45', at 

bridge on State Highway 21, 2.8 miles downstream from Patroon Bayou, 6.5 miles northeast of Milam, Sabine County, and 7.2 miles upstream from Palo Gaucho Bayou. Datum of 

gage is 97.96 feet above mean sea level, datum of 1929, Alluvial Valley supplementary 

adjustment of 1941. 

Drainage area.- 6,543 square miles. 

RT6ords available.- January 1939 to September 1948. October 1923 to August 1925, at 

sabinetown, 7.4 miles downstream, records equivalent except those for periods of extreme low flow or high runoff from Palo Gaucho Bayou. 

Extremes.- Maximum discharge during year, 18,800 second-feet Feb. 15, 16; maximum gage 

height, 31.84 feet Feb. 15; minimum discharge, 91 second-feet Sept. 30 (gage height, 

6.03 feet). 

1939-48: Maximum discharge, 83,400 second-feet Apr. 12, 1945 (gage height, 48.87 

feet); minimum observed, 32 second-feet Oct. 15, 22, 1939. 

Maximum stage known prior to 1945, 48 feet about July 28, 1933, from information by 

observer. Remarks.- Records good except those for periods of no gage-height record, which are fair. 

No large diversions above station. 

Rating table, water year 1947-48 (gage height, in feet, and discharge, in second-feet (Shifting-control method used July 29 to Sept. 10) 

6.0 86 8.5 830 18.0 6,200 

6.3 146 10.0 1,400 22.0 9,450 

6.7 250 12.0 2,350 26.0 13,100 7.3 431 14.5 3,780 32.0 19,000 

Discharge, in second-feet. water year October 1947 to September 1948 -- Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 

2 

3 

4 

495 

431 

387 

352 

206 

313 

447 

594 

2,350 

2,400 

2,520 

3,060 

7,920 

8,520 

8,940 

9,200 

8,770 

8,940 

9,020 

8,940 

15,400 

14,600 

14,000 

13,300 

10,900 

11,200 

11,300 

11,500 

479 

463 

495 

544 

258 

244 

219 

204 

108 

104 

106 

S

106 

S28SS8222222.5;888:2

225;2888 0W 0NN0OWNO 0,00

,,M0,,WM 000W 

Ci;a:010:

000;0; .70;0;dCC; 

S22222 82288 88828 28??2 ??288 00N,0N OOOW 

N 0000 00,0040M,r00 1 

0 00V 0Cv r- :(110,WV 0000 NNN 00 

5 322 627 4,230 9,450 9,770 12,800 11,600 610 191 104

6 304 561 4,360 9,450 8,340 13,300 11,300 660 183 106 9,360 644 298 114 5,160 610 528 118 2,740 610 561 137 2,000 627 512 180 

1,720 630 431 201 1,670 630 365 198 1,540 630 310 168 1,320 660 270 153 

7 287 528 3,840 9,540 8,000 13,400 8 270 544 4,100 9,540 8,860 12,700 9 256 561 4,890 9,450 14,000 12,200 10 24? 561 5,680 9,110 15,500 11,800 

11 230 544 6,200 8,180 16,400 11,200 12 222 711 6,280 7,030 17,000 10,700 13 214 970 6,280 6,350 17,800 10,200 14 209 1,000 6,280 6,280 18.400 9,630 15 204 1,080 6,800 6,350 18,800 9,280 1,160 720 233 142

16 199 1,280 7,670 6,500 18,800 9,110 1,040 790 217 142 17 193 1,400 7,590 6,580 18,600 9,110 935 840 199 146 18 188 1,490 7,270 6,650 18,400 9,200 865 860 188 142 19 191 796 810 183 135 745 720 178 126 

677 640 170 120 644 580 160 116 594 530 153 114 561 500 144 114 528 470 137 110 

1,670 7,030 6,800 18,200 9,360 20 193 1,670 6,720 6,950 17,600 9,540 

21 191 1,440 6,580 7,030 17,200 9,720 22 186 1,400 6,420 6,950 17,400 ' 9,990 23 180 1,850 6,420 6,580 17,60, 10,400 24 173 2,150 6,500 6,200 17,600 10,800 25 158 2,100 6,580 6,120 17,600 11,100 

26 165 2,250 6,650 6,050 17,400 11,300 512 420 133 106 27 168 2,400 6,800 6,120 17,000 12,100 479 390 126 100 28 173 463 340 124 99 495 301 118 97 2,400 6,950 6,720 16,600 12,600 29 170 2,350 7,110 7,670 16,000 12,300 30 180 2,300 7,270 8,180 - 11,900 561 275 116 93 31 191 7,510 8,600 - 11.200 253 112 1 I 

.,0 00

..2 , ..r.1.0 27 ?17'8; g 8 )t8, 

Minimum Per Runoff Second- Month Maximum Mean square foot-days Inches Acre-feet mile 

October 7,334 495 237 0.036 0.04 14,550 November 37,397 2,400 1,247 .191 .21 74,180 December 180,340 7,670 5,817 .889 1.02 357,700

Calendar year 1947 1,907,604 22,200 - _ 5,226 .799 10,84 3,7113,000 

7,581 1.16 1.34 466,100 14,950 2.28 2.46 859,900 11,430 1.75 2.01 702,600 6,442 .984 1.10 383,300 6,537 .999 1.15 402,000 3,479 .532 .59 207,000 

January 235,010 9,540 February 433,540 18,800 March 

April 354,240 15,400 193,250 17,600 May 

June 202,650 10,600 104,365 11,600 July 17,721 860 572 .087 .10 35,150 August 7,265 561 234 .036 .04 14,410 September 3,795 201 126 .019 .02 7,530 

Water year 1947-48 1,776,907 18,800 93 4,855 .742 10.08 3,524,000 

Peak discharge (base, 15,000 sec.-ft.).- Feb. 15 (2 p.m.) 18,800 sec.-ft.; Apr. 15 (10 p.m.)17,800 seF7/T7 

Note.- No gage-height record Apr. 24-28, July 11-28; discharge computed on basis of recorded range and records for stations at Logansport and near Ron Weir. 
		

30 SABINE RIVER BASIN 

Sabine River near Bon Wier, Tex. 

Location.- Wire-weight gage, lat. 30°44', long. 93°37', at bridge on U. S. Highway 190, 

11 miles east of Bon Wier, Newton County, and 2.4 miles upstream from Caney Creek. 

Datum of gage is 46.4 feet above mean sea level, datum of 1929. 

Drainage area.- 8,323 square miles. 

Records available.- October 1923 to September 1934, January 1939 to September 1948. U. F. 

Weather bureau has collected gage-height records in this vicinity since 1913. 

Average discharge.- 20 years (1923-34, 1939-48), 8,112 second-feet. 

Extremes.- Maximum discharge during year, 28,100 second-feet Apr. 18 (gage height, 19.46 

feet, from graph based on gage readings); minimum observed, 331 second-feet Sept. 29, 

30. 

1923-34, 1939-48: Maximum discharge, 75,500 second-feet Apr. 17, 18, 1945; maximum 

gage height, 23.10 feet Apr. 18, 1945; minimum discharge observed, 185 second-feet 

Sept. 11, 22, 24, 1925. 

Maximum stage known, 26 feet in May 1884, present site and datum, from information 

by local resident. 

Remarks.- Records good. Gage read twice daily, oftener during high stages. No large 

diversions above station. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. r May June July Aug. Sept. 

1 1,000 649 3,190 9,500 12,200 1 19,400 12,900 4,150 11,000 978 628 408 

2 875 850 3,100 11,600 12,000 18,700 12,100 4,250 10,900 1,000 608 401 

3 805 715 3,100 11,800 11,400 18,000 10,900 4,150 11,000 1,090 588 401 

4 760 628 3,280 11,500 10,800 16,800 9,080 4,050 11,200 1,060 588 377 5 692 715 4,950 11,000 10,600 16,000 7,580 4,150 11,400 1,000 588 367 

6 649 1,260 8,240 10,600 10,500 16,000 6,930 3,950 11,560 1,000 544 367 

7 628 1,260 9,500 10,500 10,100 17,000 6,560 4,150 11,600 1,030 528 360 

8 588 1,320 8,800 10,500 9,920 17,600 6,440 4,880 11,200 1,060 528 380 9 568 1,290 11,600 10,500 12,100 17,000 5,980 4,450 9,220 1,060 512 457 10 548 1,120 12,100 10,600 17,200 16,200 5,210 3,950 5,650 1,000 588 544 

11 528 1,230 11,500 11,200 20,200 15,600 4,450 3,550 3,750 1,030 715 692 12 508 1,380 10,800 10,500 21,800 14,500 3,850 3,750 3,010 1,060 760 588 13 488 1,260 10,800 10,600 23,000 13,500 4,300 4,250 2,650 1,170 715 548 14 460 1,350 12,000 11,800 23,000 12,600 11,600 4,770 2,380 1,230 670 536 15 457 3,440 13,400 10,900 23,300 11,800 19,900 6,090 2,300 1,120 608 508 

16 449 4,880 15,400 9,780 23,000 11,200 24,300 7,320 2,060 1,030 536 472 17 430 3,370 15,600 8,940 22,100 10,800 27,000 8,520 1,840 978 520 453 18 430 3,010 14,400 8,660 21,600 10,900 27,700 9,360 1,720 978 488 441 19 453 3,550 11,600 8,660 20,700 10,800 24,600 9,920 1,620 1,030 468 434 20 457 3,460 9,920 8,520 20,200 10,800 18,800 10,300 1,450 1,140 457 416 

21 438 3,100 9,080 8,660 19,400 10,600 12,700 10,600 1,350 1,140 416 412 22 449 2,920 8,520 8,940 20,200 10,900 8,940 10,800 1,260 1,C60 416 394 23 411 3,650 8,100 8,800 21,000 11,400 6,680 10,800 1,200 978 434 380 24 434 5,870 7,840 8,520 21,600 11,800 5,650 10,600 1,170 900 419 380 25 430 6,200 7,710 8,100 21,800 12,100 4,990 10,100 1,120 875 419 391 

26 423 4,990 7,580 7,970 21,800 12,100 4,770 9,640 1,090 828 405 370 27 401 3,850 7,580 8,800 21,600 12,100 4,660 9,640 1,000 805 419 357 28 412 3,460 7,710 10,900 21,000 12,600 4,450 10,800 978 782 426 347 29 401 3,370 7,840 11,500 20,200 13,400 4,250 11,600 950 760 430 331 30 426 3,280 7,970 12,200 13,700 4,150 11,600 978 670 419 331 31 468 - 8,380 12,600 - 13,400 11,500 - 692 419 

Per Runoff Second- Month Maximum Minimum Mean square foot-days mile Inches Acre-foet

October 16,496 1,000 401 532 0.064 0.07 32,720 November 77.427 6,200 628 2,581 .310 .35 153,600 December 281,590 15,600 3,100 9,084 1.09 1.26 558,500 

Calendar year 1947 2,852,414 37,500 401 7,815 .939 12.75 5,658,000 

January 314,650 12,600 7,970 10,150 1.22 1.41 624,100 February 524,320 23,300 9,920 18,080 2.17 2.34 1,040,000 March 429,300 19,400 10,600 13,850 1.66 1.92 851,500 April 311,420 27,700 3,850 10,380 1.25 1.39 617,700 May 227,640 11,600 3,550 7,343 .882 1.02 451,500 June 138,546 11,600 950 4,618 .555 .62 274,800 July 30,534 1,230 670 985 .118 .14 60,560 August 16,259 760 405 524 .063 .07 32,250 September 12,843 692 331 428 .051 .06 25,470 

Water year 1947-48 2,381,025 27,700 331 6,506 .782 10.65 4,723,000 

Peak discharge (base, 19,000 sec.-ft.).- Feb. 15 (4 a.m. to 2 p.m.) 23,300 sec.-ft.; Apr. 18 (4 to 8 a.m.) 28,100-sec.-ft. 
		

- - - - 

SABINE RIVER BASIN 31 

Sabine River near Ruliff, Tex. 

Location.- Wire-weight gage, lat. 30°18'10", long. 93°44'40", at bridge on State Highway 235, 2.4 miles north of Ruliff, Newton County, 4.2 miles upstream from Kansas CitySouthern Railway bridge, and 4.5 miles downstream from Cypress Creek. Datum of gage 

is 4.08 feet above mean sea level, datum of 1929. 

Drainage area.- 9,440 square miles. 

Records available.- October 1924 to September 1948. 

Average discharge.- 24 years, 9,082 second-feet. 

Extremes.- Maximum discharge during year, 28,600 second-feet Feb. 26-28; maximum gage 

height, 14.56 feet Feb. 26, 27; minimum discharge observed, 438 second-feet Sept. 30 

(gage height, 2.15 feet). 

1924-48: Maximum discharge, 85,300 second-feet Apr. 22, 1945; maximum gage height, 

17.9 feet May 24, 25, 1935, present site and datum; minimum discharge observed, 338 

second-feet Sept. 25-27, Oct. 2, 3, 22-24, 1939. 

Higher stages are known to have occurred in the past. 

Remarks.- Records good except those for periods of no gage-height record, which are fair. 

arg7-read twice daily. No large diversions above station. Records of chemical 

analyses and water temperatures for water year 1948 are given in Water-Supply Paper 

1133. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. T Feb. Mar. Apr. May June July Aug. Sept. 

.1 1,700 620 4,000 10,200 19,100 26,800 14,800 5,030 12,200 1,450 950 590 2 1,550 a732 3,770 10,600 19,100 24,200 15,100 5,290 12,700 1,450 890 575 3 1,400 970 3,700 11,000 18,500 23,400 15,100 5,160 12,700 1,450 872 560 4 1,300 1,130 3,570 12,000 18,000 21,800 14,800 5,160 12,700 1,550 785 515 5 1,220 1,050 3,770 13,60( 17,000 21,800 14,500 4,910 12,700 1,550 785 488 

6 1,130 950 4,570 14,200 15,400 21,000 13,800 4,910 12,700 1,500 750 475 7 1,050 1,220 6,370 14,500 14,800 21,000 13,600 4,910 13,000 1,450 715 475 8 990 1,650 8,000 14,500 14,200 20,400 10,800 4,680 13,000 1,450 698 462 9 910 1,700 9,730 14,200 14,200 20,400 9,730 4,910 12,700 1,500 680 462 10 872 1,900 10,800 a13,800 14,200 20,400 9,110 5,160 12,200 1,550 650 500 

11 838 1,850 11,500 a13,800 14,500 20,400 a7,840 4,910 11,000 1,600 650 590 12 820 1,750 13,000 13,600 15,800 19,700 6,370 4,370 10,400 1,600 680 680 

13 768 1,800 15,400 13,800 18,000 18,500 5,560 4,180 6,600 1,600 785 802 14 732 2,000 15,800 14,200 21,800 18,000 5,850 4,400 4,470 1,650 890 820 

15 715 2,200 18,000 14,200 25,900 17,500 6,370 4,800 3,630 1,750 930 750 

16 698 3,030 19,100 14,800 27,700 17,000 10,400 5,200 a3,210 1,700 855 732 17 665 4,000 21,000 14,200 27,700 15,800 12,700 5,700 2,920 a1,550 750 715 18 665 4,470 22,500 13,600 26,800 15,100 al5,800 6,370 a2,640 1,500 665 665 19 650 4,000 23,400 13,000 25,900 14,500 23,400 8,000 2,580 1,500 635 620 20 650 3,840 23,400 12,700 25,000 13,800 25,900 9,200 2,420 1,500 620 590 

21 650 4,000 17,000 12,200 25,900 al3,600 26,800 9,800 2,310 1,550 605 560 22 665 3,920 18,000, 11,700 25,900 13,300 26,800 10,200 2,100 1,600 590 530 23 665 3,700 15,800 M11,700 25,900 13,000 a23,400 10,600 2,000 1,600 560 530 24 650 3,770 14,500 11,700 26,800 13,000 18,500 10,600 1,900 1,600 a545 515 25 635 5,160 a12,700 11,700 27,700 13,300 16,600 10,600 1,800 1,350 560 500 

26 a620 6,170 11,000 12,000 28,600 13,300 11,500 10,800 1,700 1,220 545 488 27 620 6,600 10,400 12,700 28,600 13,600 9,320 11,000 1,600 1,170 545 475 28 605 6,370 10,200 13,800 28,600 13,800 6,600 10,800 1,600 1,130 590 462 29 590 5,700 9,730 15,800 26,800 14,200 6,000 10,800 a1,500 1,090 620 450 30 590 a4,680 9,730 17,000 14,200 5,560 10,800 1,450 1,050 620 438 31 605 9,940 19,100 14,500 11,500 970 605 

Per Runoff Month Second- Maximum Minimum Mean square 

mile foot-days Inches Acre-feet 

October 26,218 1,700 590 846 0.900 0.10 52,000 November 90,932 6,600 620 3,031 .321 .36 180,400 

December 380,380 23,400 3,570 12,270 1.30 1.50 754,500 

Calendar year 1947 3,671,966 52,900 590 10,060 1.07 14.46 7,283,000 

January 415,900 19,100 10,200 13,420 1.42 1.64 824,900 February 638,400 28,600 14,200 22,010 2.33 2.51 1,266,000 March 541,300 26,800 13,000 17,460 1.85 2.13 1,074,000 April 402,610 26,800 5,560 13,420 1.42 1.59 798,600 May 224,750 11,500 4,180 7,250 .768 .89 445,800 Juno 194,430 13,000 1,450 6,481 .686 .77 385,600 July 45,180 1,750 970 1,457 .154 .18 89,610 August 21,620 950 545 697 .074 .09 42,880 September 17,014 820 438 567 .060 .07 33,750 

Water year1947-48 2,998,734 28,600 438 8,193 .868 11.83 5,948,000 

Peak dischargeggase, 22,000 sec.-ft.).- Dec. 19, 20, 23,400 sec.-ft.; Feb. 26-28, 28,600 sec.-ft.; Apr. 21, 22, -77, sec.-fl. a No gage-height record; discharge computed on basis of estimated gage heights. 

Note.- No gage-height record May 14-16, 19-22; discharge cbmputed on basis of records for station near on Wier. 
						

32 SABINE RIVER BASIN 

Lake Fork Sabine River near Quitman, Tex. 

Location.- Wire-weight gage, lat. 32°46', long. 95°28', at bridge on State Highway 37, 

halt a mile downstream from Dry Creek and 2.5 miles south of Quitman, Wood County. 

Datum of gage is 317.42 feet above mean sea level, datum of 1929. 

Drainage area.- 586 square miles. 

Records available.- June 1924 to April 1926, February 1939 to September 1948 

Average discharge.- 10 years (1924-25, 1939-48), 515 second-feet. 

Extremes.- Maximum discharge during year, 19,200 second-feet May 12 (gage height, 20.66 

---7661-7-from graph based on gage readings); no flow at times. 

1924-26, 1939-48: Maximum discharge, 75,600 second-feet Mar. 30, 1945 (gage height, 

29.85 feet, from floodmark), from rating curve extended above 49,000 second-feet; no 

flow at times. 

From information by local residents, the flood of July 1895 reached about the same 

stage as that of July 7, 1943, which was 25.9 feet. 

Remarks.- Records good. Gage read twice daily, oftener during high stages. No diversion 

above station. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept 

1 2.7 0.2 170 *1,050 566 1,230 102 62 64 5.0 a31 0.2 

2 2.1 79 32 1,860 760 4,130 90 46 45 4.6 18 .2 

3 1.8 105 26 3,840 910 5,020 78 40 38 4.4 12 .1 

4 1.5 76 209 2,850 1,050 4,770 70 40 28 4.3 8.9 0 

5 1.2 26 334 1,580 1,050 2,480 66 81 23 4.1 6.5 0 

6 1.0 14 324 752 932 1,480 64 404 21 3.7 5.0 0 7 .8 78 821 290 956 1,220 64 1,010 51 3.4 4.3 0 

8 .7 294 1,940 184 1,340 1,330 65 1,370 48 3.0 3.5 0 9 .6 212 2,980 163 2,230 1,410 170 1,130 28 3.0 2.9 0 10 .5 184 2,800 138 2,540 866 177 932 36 5.3 2.3 0 

11 .4 71 2,360 128 2,050 488 81 1,490 42 22 1.9 0 12 36 1,600 121 1,800 304 63 10,900 31 170 1.6 0 13 .2 16 828 108 1,860 228 374 14,300 22 166 1.3 0 14 .2 11 516 96 2,050 198 956 5,740 16 142 1.0 .1 15 .11 44 1,200 87 2,050 191 1,100 2,420 13 54 .2 

16 .1 138 4,840 124 1.490 191 932 1,340 11 36 .8 .2 17 .1 331 9,540 268 910 184 491 980 8.9 23 .7 .2 18 0 378 5,340 378 584 170 222 760 7.2 15 .7 .1 19 268 2,380 378 402 156 121 1,140 6.2 8.9 .5 sO 20 0 228 a1,160 314 344 146 87 2,120 4.8 7.0 .4 a0 

21 0 328 760 344 590 142 68 1,450 3.9 3.9 .4 a0 22 0 442 584 470 925 298 52 554 2.9 3.4 .3 0 23 0 a548 700 500 1,330 764 38 156 2.4 2.8 .2 a0 24 0 660 1,080 428 1,000 2,660 a52 96 2.1 2.3 .2 a0 25 .1 866 756 390 566 2,900 132 76 1.9 1.9 .2 *0 

26 a.2 1,050 341 354 366 1,600 294 64 1.8 1.6 .4 a0 27 .2 866 177 a334 378 738 354 105 1.6 24 .6 0 28 .1 337 149 *314 516 274 284 342 1.6 528 .6 *0 29 0 276 128 /1304 602 177 174 268 7.5 680 .4 a0 30 0 244 121 *314 135 93 146 6.7 186 .4 a0 31 0 581 390 118 102 64 .4 

Per Runoff Second- Month Maximum Minimum Mean square foot-days mile Inches Acre-feet

October 14.9 2.7 0 0.48 0.00082 0.0009 30 8,206.2 1,050 .2 274 .467 .52 16,280 November 44,777 9,540 26 1,444 2.46 2.84 88,810 December 

Calendar year 1947 137,166.3 9,540 0 376 .641 8.70 272,100 

January 18,851 3,840 87 608 1.04 1.20 37,390 

February 32,147 2,540 344 1,109 1.89 2.04 63,760 

March 35,998 5,020 118 1,161 1.98 2.28 71,400 

April 6,914 1,100 38 230 .392 .44 13,710 

May 49,664 14,300 40 1,602 2.73 3.15 98,510 

June 576.5 64 1.6 19.2 .033 .04 1,140 

July 2,182.6 680 1.6 70.4 .120 .14 4,330 

August 108.2 31 .2 3.49 .006 .007 215 

September 1.3 .2 0 .04 .00007 .0001 2.6 

Rater year 1547-48 199,440.7 14,300 0 545 .930 12.66 395,600 

Peak discharge (base, 6,600 sec.-ft.).- Dec. 17 (12 m.) 10,500 sec.-ft.; May 12 (10 p.m.) 19,200 

sec.-ft. a No gage-height record; discharge computed on basis of weather records and estimated gage heights. 
		

		

				

									

		

	 	

				

				

				

SABINE RIVER BASIN 33 

Big Sandy Creek near Big Sandy, Tex. 

Location.- Water-stage recorder, lat. 32°37', long. 95°06', at county highway bridge 2.2 

miles northeast of Big Sandy, Upshur County, and 7.8 miles upstream from mouth. 

Datum of gage is 281.6 feet above mean sea level, unadjusted. 

Drainage area.- 235 square miles. 

Records available.- February 1939 to September 1948. 

Extremes.- Maximum discharge during year, 3,340 second-feet May 14 (gage height, 16.38 

reel); minimum, 14 second-feet Aug. 24, 25. 

1939-48: Maximum discharge, 38,000 second-feet Mar. 31, 1945 (gage height, 22.4 

feet, from floodmark), from rating curve extended above 3,000 second-feet; minimum 

observed. 7.7 second-feet Sept. 30, 1939. 

Maximum stage known prior to 1945, 20.4 feet (probably backwater from Sabine River) 

in January 1938, from information by observer. 

Remarks.- Records good except those for periods of no gage-height record, which are poor. 

No large diversion above station. 

Rating table, water year 1947-48 (gage height, in feet, and discharge, in second-feet) (Shifting-control method used Nov. 21 to Dec. 6) 

5.1 13 7.0 81 12.0 620 14.5 1,600 5.3 18 8.0 146 12.5 726 15.0 1,940 5.5 23 9.0 224 13.0 866 15.5 2,330 6.0 39 10.0 324 13.5 1,050 16.1 2,920 6.5 58 11.0 450 14.3 1,300 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 27 45 136 344 464 884 180 208 153 43 26 17 

2 27 45 108 372 450 936 156 184 139 40 32 18 

3 

4 

27 

28 43 

42 99 591 152 1,480 424 

424 1,420 

2,860 142 

132 139 

142 114 

92 38 

38 37 

37 23 

24 

5 29 40 1 72 983 450 1,620 128 142 78 38 35 20 

29 40 160 670 450 913 125 150 79 39 31 17 7 29 50 381 501 464 660 122 118 166 38 24 16 

8 29 53 980 385 510 526 114 104 95 38 21 16 9 29 58 682 302 526 450 111 101 84 37 21 17 10 29 60 75D 251 580 398 111 122 81 36 20 20 

11 29 62 750 216 562 372 108 378 84 72 19 20 12 28 67 126 196 544 336 104 787 84 75 19 20 13 28 60 660 184 494 302 162 2,370 76 60 18 19 14 28 62 620 176 464 271 224 2,800 67 53 18 19 15 28 74 600 172 424 251 336 1,580 58 44 17 19 

16 28 74 776 180 385 242 385 900 54 39 17 18 17 

18 

19 

20 

28 

28 

28 

28 

67 

65 

67 

67 

1,480 

1,840 

1,450 936 

208 

208 

208 

216 

348 

313 

281 

271 

224 

216 

208 

208 

424 

424 

372 

291 

704 

660 

526 

424 

52 

78 

58 

58 

35 

32 

31 

30 

18 

18 

23 

24 

18 

19 

20 

20 

21 28 98 662 271 281 208 216 324 54 28 21 19 22 28 156 511 324 324 242 164 291 52 27 17 19 23 28 172 398 324 348 251 132 281 49 26 15 19 24 28 180 313 302 348 251 114 251 44 ?5 15 20 25 28 172 261 291 360 261 148 208 39 25 15 20 

26 33 156 224 324 372 271 224 188 36 25 20 19 27 50 156 208 424 398 302 208 168 34 24 21 19 28 

29 

30 

31 

67 

60 

50 

46 

164 

168 

160 

192 

180 

168 

172 

398 

f372 

f372 

424 

437 

437 302 

271 

233 

200 

196 

196 

208 

164 

153 

142 

146 

35 

42 

44 

25 

25 

24 

24 

20 

19 

18 

18 

19 

19 

19 

Month Secondfoot-days Maximum Minimum Mean Per 

square 

mile 

Runoff 

Inches Acre-feet 

October 

November 

December 

1,010 

2,723 

16,737 

67 

180 1,840 

27 32.6 0.139 

40 90.8 .386 89 540 2.30 

0.16 

.43 

2.65 

2,000 

5,400 

33,200 

Calendar year 1947 71,922 1,840 21 197 .838 11.39 142,600 - - January . 

February 

March 

April 

May 

June 

July 

August 

September 

11,669 

12,133 

16,089 

5,957 

14,855 

2,179 

1,134 674 

572 

1,480 580 2,860 424 2,800 166 

75 

37 

24 

172 

271 

200 

104 

101 

34 

24 

15 

16 

376 

418 

519 

199 

479 

72.6 

36.6 

21.7 

19.1 

1.60 

1.78 

2.21 

.847 

2.04 

.309 

.156 

.092 

.081 

1.85 

1.92 

2.55 

.94 

2.35 

.34 

.18 

.11 

.09 

23,150 

24,070 

31,910 

11,820 

29,460 

4,320 

2,250 

1,340 

1,130 

Water year 1941-48 85,732 2,860 15 234 .996 13.57 170,000 

Peak dischare1402,4400•sec.-ft.h- Dec. 18 (12 m.) 1,900 sec.-ft.; Jan. 4 TAa.m.) 1,600 sec.-ft.; Mar. a.m. ,770_t.; May 14 (1 a.m.) 3,340 sec.-ft. f Computed on basis of partly estimated gage-height record.

Note.- a, gage-height record Dec. 9-20, Feb. 6 to Mar. 2; discharge computed on basis of recorded raiViTin stage, weather records, and discharge measurements made on Feb. 6, Mar. 2. 
__ __ 

__ 

34 SABINE RIVER BASIN 

Cherokee Bayou near Elderville, Tex. 

Location.- Water-stage recorder, lat. 32°20,, long. 94°42,, at bridge on county highway 

3.8 miles southeast of Elderville, Gregg County, 4.5 miles upstream from bridge on 

State Highway 149; and 19.3 miles upstream from mouth. Datum of gage is 266.8 feet 

above mean sea level, datum of 1929 (Corps of Engineers bench mark). 

Drainage area.- 116 square miles. 

Records available.- August 1939 to January 1949 (discontinued). 

6xtremes.- 1947-48: Maximum discharge during water year, 960 second-feet May 13 (gage 

height, o.27 feet); no flow at times. 1948-49: Maximum discharge during period October to January, 168 second-feet Dec. 

18 (gage height, 4.67 feet); minimum, 0.1 second-foot Oct. 1. 

1939-49: Maximum discharge, 10,200 second-feet Nov. 23, 1940 (gage height, 12.81 

feet), from rating curve extended above 4,500 second-feet by logarithmic plotting; no 

flow at times. 

Maximum stage known, about 14.0 feet in September 1913, from information by local 

residents. 

Remarks.- Records fair. No diversion above station. 

W 1088: Drainage area. 

Discharge, in second-feet, 1947-49 

7-

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 9.8 24 30 180 240 222 101 69 43 34 1.0 0.1 

2 9.7 22 30 274 250 294 96 58 36 24 .9 .1 3 9.1 22 30 308 235 319 89 56 30 19 .7 0 

4 . 8.7 20 71 192 202 314 80 74 27 19 .6 0 

5 8.919 110 124 192 23, 77 70 26 13 .6 0 

6 8.7 18 202 101 192 209 79 111 25 10 .5 0 7 8.9 36 253 91 219 200 75 104 24 8.7 .5 0 

8 9.1 37 248 84 328 212 75 106 24 7.1 .5 .4 9 8.7 42 237 80 620 207 92 99 24 5.8 .5 2.2 10 8.5 62 288 80 754 188 80 77 24 5.6 .4 1.5 

11 8.3 57 202 79 459 178 74 195 25 8.7 .3 .8 12 8.3 41 134 82 440 171 70 477 27 11 .0 .6 13 

14 

15 

8.3 

8.3 

8.2 

37 

58 

63 

104 

87 

118 

96 

91 

98 

562 

531 

362 

153 

142 

140 

103 

126 

148 

860 

543 

280 

25 

24 

21 

7,4 

18 

20 

.1 

0 

0 

.6 

1.4 

1.3 

16 

17 

8.2 

8.0 57 

66 166 

261 125 200 280 227 142 

144 155 110 155 130 20 

20 12 

7.1 0 

0 1.0 

.6 18 

19 

20 

8.2 

11 

1 2 

66 

50 

42 

232 

148 

108 

245 

258 

217 

202 

190 

183 

155 

148 

132 

79 

63 

56 

146 

217 

164 

18 

16 

15 

5.3 

4.4 

4.0 

0 

0 

0 

.7 

.9 

.9 

21 

22 

23 

24 

10 

9.6 

9.3 

9.6 

44 

86 

92 

101 

94 

87 

80 

77 

207 

258 

294 

272 

227 

302 

362 

283 

143 

272 

467 

476 

49 

44 

77 

92 

99 

72 

60 

53 

14 

13 

13 

12 

3.5 

3.0 

2.7 

2.4 

0 

0 

0 

0 

.9 

.9 

.6 

.6 25 9.6 106 72 207 277 280 140 50 13 2.2 0 .5 

26 

27 

28 

29 

30 

31 

15 

26 

24 

25 

31 

27 

82 

57 

43 

36 

32 

69 

66 

63 

63 

63 

78 

197 283 318 297 429 258 a429 222 a300 

a243-

202 

166 

146 

134 

117 

110 

209 

212 

227 

136 

86 

58 

62 

60 

63 

66 

54 

14 

13 

17 

44 

41 

-

1.9 

1.7 

1.6 

1.4 

1.2 

1.1 

0 

0 

0 

0 

.1 

.2 

.4 

.3 

.3 

.2 

.2 

a No gage-height record. discharge computed on basis of known range in stage. 

1948-49 

Day Oct. Nov. Dec. Jan. Day Oct. Nov. Dec. JaniDaypct. Nov. Dec. Jan. Day Oct. Nov. Dec. Jan. 

1 0.1 11 42 71 9 0.6 13 29 38 17 4.3 106 106 - 25 4.4 73 41 - 2 .2 12 42 57 10 1.1 13 29 38 18 4.8 114 156 - 26 4.6 56 38 - .3 .2 12 38 50 11 4.6 13 29 38 19 4.1 146 102 - 27 4.6 47 36 - 4 .2 12 35 45 12 4.4 17 29 38 20 3.8 90 73 - 28 4.6 50 40 - 5 .2 16 35 42 13 3.6 22 30 - 21 3.6 90 64 - 29 4.8 45 73 - 6 .2 16 33 40 14 3.3 29 31 - 22 3.8 90 54 - 30 5.1 42 68 - 7 .6 15 31 29 15 3.6 37 44 23 4.1 70 48 - 31 5.3 - 83 - 8 .8 13 30 38 16 3.8 94 79 24 4.3 76 44 -

Monthly discharge, In second-feet, 1947-49 

Second- Per ' Runoff Month Maximum Minimum Mean square foot-da ys mile Inches Acre-feet

October 1947 374.6 31 8.0 12.1 0.104 0.12 743 November 1,518 106 18 50.6 .436 .49 3,010 December 3,871 288 30 125 1.08 1.24 7,680 - Calendar year 1947 51,822 2,400 3.1 142 1.62 17.44 102,800 -- January 1948 6,159 429 79 199 1.72 1.97 12,220 February 9,179 754 183 317 2.73 2.94 18,210 March 6,420 476 110 207 1.78 2.06 12,730 April 3,100 227 44 103 .888 .99 6,150 May 4,688 860 50 151 1.30 1.50 9,300 June 688 44 12 22.9 .197 .22 1,360 July 266.8 34 1.1 8.61 .074 .09 529 August 7.1 1.0 0 .23 .0020 .002 14 September 18.4 2.2 0 .61 .0053 .006 36 

Water year 1947-48 36,289.9 860 0 99.2 .855 11.63 71,980 

October 1948 93.7 5.3 .1 3.02 .026 .03 186 November 1,440 146 11 48.0 .414 .46 2,860 December 1,612 156 29 52.0 .448 .52 3,200 -- - Calendar year 1948 33,672 860 0 92.0 .793 10.79 66,800 

January 1-12, 1949 534 71 38 44.5 .384 .17 1,060 

The period - _ - - - 7,310 
		

		

		

		

		

		

33 NECHES RIVER BASIN 

Neches River near Neches, Tex. 

Location.- Water-stage recorder, lat. 31°54', long. 95°26', at bridge on U. S. Highway 

19, half a mile downstream from International-Great Northern Railroad bridge, 1 mile 

downstream from Walnut Creek, and 4.4 miles northeast of Neches, Anderson County. 

Datum of gage is 263.9 feet above mean sea level, datum of 1929. 

Drainage area.- 1,129 square miles. 

Records available.- February 1939 to September 1948. 

Extremes.- Maximum discharge during year, 6,780 second-feet Mar. 7 (gage height, 15.91 

feet); minimum, 12 second-feet Aug. 24, 25 (gage height, 2.12 feet). 

1933-48: Maximum discharge, 45,500 second-feet Apr. 2, 1345 (gage height, 22.07 

feet); no flow Oct. 3-5, 1939. Flood of May 1908 reached a stage of 24.3 feet, from information by local resident. Flood of May 1884 was probably higher. 

Remarks.- Records good. No large diversions above station. 

Rating table, water year 1947-48 (gage height, in feet, 

and discharge, in second-feet) 

(Shifting-control method used Nov. 10 to Dec. 15) 

2.1 12 6.0 215 12.0 1,1.70 

2.5 24 7.0 294 13.0 1,1.30 

3.0 42 8.0 390 14.0 2,810 

3.5 64 9.0 510 15.0 4,400 

4.0 91 10.0 660 15.5 5,500 

5.0 150 11.0 860 16.0 7,20C 

Discharge, in second-feet. water year October 1947 to September.14, 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 72 150 312 714 1,390 1,240 985 612 496 201 29 14 

2 67 144 312 696 1,540 1,240 935 612 468 174 28 14 

3 64 135 303 678 1,780 1,200 838 580 410 168 26 15 4 60 129 340 660 1,910 1,240 754 524 340 174 26 15 5 58 126 468 644 1,960 1,390 678 444 294 162 25 15 

6 58 120 538 644 1,960 2,510 596 420 254 138 24 15 7 56 129 566 678 1,960 6,110 552 432 230 129 23 15 8 56 162 628 754 2,000 6,060 496 410 208 138 22 13 9 56 180 696 860 2,360 4,700 482 420 187 141 22 14 10 56 174 816 935 2,670 3,550 510 420 187 132 21 16 

11 54 187 910 1,020 2,740 2,740 482 456 201 186 20 20 12 53 215 910 1,040 2,740 2,260 444 691 201 201 20 20 13 52 208 910 1,040 2,880 1,960 541 1,070 187 168 19 18 14 52 215 935 985 3,100 1,780 794 2,200 168 150 18 17 15 52 254 1,040 885 3,250 1,620 838 4,020 153 132 18 16 

16 52 262 1,200 774 3,100 1,480 838 5,500 138 114 16 16 17 51 246 1,340 754 2,950 1,390 774 5,760 126 99 16 16 18 50 246 1,450 774 2,740 1,240 678 4,800 117 88 15 16 19 49 270 1,450 794 2,540 1,160 628 3,800 108 80 14 16 20 49 262 1,340 774 2,310, 1,020 612 2,950 99 72 14 16 

21 48 246 1,290 816 2,150 960 566 2,420 91 64 13 16 22 47 262 1,420 860 2,000 935 524 2,050 83 57 13 16 23 47 321 1,620 910 1,860 960 456 1,730 77 52 13 16 24 48 360 1,780 960 1,730 960 420 1,450 74 48 12 16 25i 48 350 1,730 960 1,580 960 429 1,160 70 45 12 15 

26 48 330 1,620 935 1,450 985 722 935 68 41 13 15 27 58 303 1,390 1 020 1,390 985 794 734 67 38 13 14 28 99 294 1,200 1 080 1,340 1,020 774 596 68 36 14 14 29 111 303 1,040 1 200 1,290 1,080 714 524 143 34 14 13 30 126 303 910 1 290 1,080 644 496 222 32 14 13 31 147 794 1,340 1,040 496 30 14 

Per Runoff Month Second- Maximum Minimum Mean square foot-days mile Inches Acre-feet

October 1,944 147 47 62.7 0.056 0.06 3,860 

November 6,886 360 120 230 .204 .23 13,660 

December 31,258 1,780 303 1,008 .893 1.03 62,000 

Calendar year 1947 317,819 6,780 32 871 .771 10.46 630,400 

January 27,474 1,340 644 886 .785 .90 54,490 February 62,670 3,250 1,290 2,161 1.91 2.06 124,300 March 56,855 6,110 935 1,834 1.62 1.87 112,800 April 19,498 985 420 650 .576 .64 38,670 May 48,712 5,760 410 1,571 1.39 1.60 96,620 June 5,535 496 67 184 .163 .18 10,980 July 3,324 201 30 107 .095 .11 6,590 August 561 29 12 18.1 .016 .02 1,110 September 465 20 13 15.5 .014 .02 922 

Water 'year 1947-48 265,182 6,110 12 725 .642 8.72 526,000 

Peak discharge (base, 4,000, sec.-ft.).- Mar. 7 (9 p.m.) 6,780 sec.-ft.; May 17 (3 a.m.) 5,910 sec.-ft. 
		

36 NECHES RIVER BASIN 

Neches River near Alto, Tex. 

Location.- Water-stage recorder, lat. 31°34', long. 95°10', at bridge on State Highway 21, 

bOO feet downstream from Bowles Creek and 7f miles southwest of Alto, Cherokee County. 

Datum of gage is 198.29 feet above mean sea level, datum of 1929, suoplementary adjustment of 1937. 

Drainage area.- 1,903 square miles. 

Records available.- January 1944 to September 1948. 

Extremes.- Maximum discharge during year, 4,700 second-feet May 23; maximum gage height, 

1/.34 feet Mar. 13; minimum discharge, 21 second-feet Aug. 24, 25; minimum gage height, 

1.56 feet Sept. 29-30. 

1944-48: Maximum discharge, 42,800 second-feet Apr. 4, 1945 (gage height, 26.85 

feet); minimum, that of Aug. 24, 25, 1948. 

Maximum stage known, about 28.2 feet in May 1884, from information by local residents. 

Remarks.- Records good. No large diversions above station. 

Discharge, in second-feet, eater year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July 

1 162 180 445 1,740 1,800 2,460 1,310 1,330 1,120 285 67 53 2 149 188 445 1,740 1,800 2,340 1,310 1,310 896 285 64 43 3 137 198 445 1,660 1,800 2,290 1,330 1,280 782 325 60 37 4 133 206 530 1,510 1,840 2,200 1,330 1,260 712 345 56 33 5 125 203 712 1,330 1,880 2,100 1,330 1,220 670 315 53 30 

6 121 206 768 1,170 1,940 2,060 1,310 1,150 618 285 50 30 7 2/7 829 754 1,070 1,980 1,980 1,220 1,110 554 265 48 31 8 117 238 912 1,010 2,150 1,940 1,130 1,030 485 256 46 31 9 117 238 1,050 978 2,670 1,940 1,130 944 435 238 44 32 10 117 229 1,130 978 2,920 2,100 1,110 824 395 229 42 34 

11 117 238 1,090 1,050 3,120 2,640 1,050 796 355 275 39 33 12 113 256 1,030 1,090 3,230 3,620 996 1,110 325 345 39 34 13 113 265 1,010 1,130 3,480 4,280 1,090 1,220 305 355 38 34 14 109 285 1,010 1,170 3,620 4,103 1,310 1,150 305 295 34 36 15 105 345 1,110 1,220 3,620 3,620 1,430 1,090 295 275 32 40 

16 105 345 1,260 1,240 3,480 3,120 1,510 1,130 285 256 30 41 17 103 345 1,330 1,310 3,480 2,830 1,540 1,310 265 224 30 40 18 101 395 1,360 1,380 3,480 2,530 1,540 1,570 247 193 29 37 19 101 425 1,360 1,380 3,350 2,340 1,460 1,910 d224 175 28 35 20 105 425 1,380 1,380 3,350 2,203 1,410 2,420 d211 153 26 34 

21 109 395 1,410 1,430 3,480 2,030 1,360 3,320 d193 137 26 33 22 105 415 1,430 1,480 3,770 2,150 1,310 4,280 d175 125 25 32 23 105 518 1,460 1,480 3,620 2,150 1,480 4,480 162 113 24 31 24 101 554 1,480 1,460 3,480 2,100 1,190 3,930 153 105 22 30 25 101 554 1,480 1,430 3,120 2,060 1,130 3,350 145 98 24 29 

26 100 554 1,510 1,430 2,920 1,980 1,380 2,920 137 91 23 28 27 100 530 1,540 1,570 2,830 1,880 1,510 2,670 137 86 27 26 28 101 485 1,570 1,770 2,670 1,700 1,510 2,46') 137 80 28 24 29 113 455 1,630 1,800 2,530 1,540 1,410 2,200 180 76 34 23 30 141 445 1,660 1,770 1,380 1,380 1,910 238 71 39 23 31 157 - 1,660 1,880 - 1,330 - 1,500 - 68 45 -

Per Runoff Second-. Month Maximum Minimum Mean square foot-days mile Inches Acre-feet

October 3,602 162 100 116 0.061 0.07 7,140 November 10,347 554 180 345 .181 .20 20,520 December 35,961 1,663 445 1,160 .610 .70 71,330 

Calendar year 1947 580,263 7,760 100 1,590 .836 11.33 1,151,000 

January 42,956 1,800 978 1,386 .728 .84 85,200 February 93,410 3,770 1,800 2,876 1.51 1.63 165,400 March 73,020 4,280 1,330 2,355 1.24 1.43 144,800 April 39,506 1,540 996 1,317 .692 .77 78,360 May 58,184 4,480 796 1,877 .986 1.14 115,400 June 11,141 1,120 137 371 .195 .22 22,100 July 6,424 355 68 207 .109 .13 12,740 August 1,172 67 22 37.8 .02C .02 2,320 September 997 53 23 33.2 .017 .02 1,980 

Water year 1947-48 366,720 1,480 22 1,002 .527 7.17 727,300 

Peak discharge (base 5,000 sec.-ft.).- No peak above base. 

d'Doubtful gage-heiglt record; discharge computed on basis of estimated gage heights. 

Note.- No gage-height record Nov. 16 to Dec. 1, Mar. 24-30, Apr. 1 to May 11; discharge computed on-Balls of recorded range in stage, weather records, and records for Neches River near Neches, Angelina River near Lufkin, and Mud Creek near Jacksonville. 
- - - - - - - - - - -- - - 

----- 

- - - - - 

37 NECHES RIVER BASIN 

Neches River near Diboll, Tex. 

Location.- Wire-weight gage, lat. 31°08', long. 94°48', at bridge on U. S. Highway 59, 

b30 feet downstream from Texas & New Orleans Railroad bridge, 2.9 miles downstream 

from Alabama Creek, and 3.8 miles south of Diboll, Angelina County. Datum of gage 

is 134.46 feet above mean sea level, datum of 1929. 

Drainage area.- 2,670 square miles. 

Records available.- November 1923 to August 1925, March 1939 to September 1948. 

Average discharge.- 10 years (1924-25, 1939-48), 2,258 second-feet. 

Extremes.- Maximum discharge during year, 7,350 second-feet Feb. 12 (gage height, 14.10 

reet); minimum observed, 28 second-feet Sept. 30. 

1923-25, 1939-48: Maximum discharge, 49,900 second-feet May 4, 1944 (gage height, 

18.70 feet); no flow Aug. 15-22, 1925. 

Maximum stage known, about 21.0 feet in May 1884, oresent site, from information 

by local residents. 

Remarks.- Records good. Gage read once or twice daily. No large diversions above 

station. 

Discharge, in second-feet. water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug Sept. 222g2ggaRa

2gr4=5 ;;HE EH

H1 

109 486 1,580 2,340 4,770 2,520 2,420 3,550 186 91 38 

114 486 1,620 2,340 4,770 2,250 2,020 3,430 198 86 41 

126 468 1,690 2,340 4,670 2,100 1,810 3,200 230 80 40 

146 534 1,770 2,340 4,500 1,900 1,690 2,850 275 77 41 

162 730 1,810 2,250 4,220 1,770 1,580 2,420 321 73 44 

174 874 1,810 2,160 4,220 1,720 1,520 1,960 342 71 46 192 1,010 1,810 2,160 4,080 1,650 1,450 1,520 342 65 44 

216 1,110 1,770 2,540 3,810 1,580 1,330 1,160 335 62 39 

242 1,140 1,770 4,190 3,680 1,550 1,550 874 314 57 40 249 1,300 1,720 6,260 3,430 1,580 1,160 690 294 54 41 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 242 1,520 1,650 7,180 3,200 1,550 1,160 650 288 52 43 

12 236 1,650 1,580 7,350 2,960 1,550 1,220 540 282 50 45 

13 230 1,690 1,520 6,700 2,850 1,800 1,550 504 268 48 42 

14 230 1,520 1,480 5,990 2,740 3,390 2,020 450 282 47 39 15 242 1,450 1,480 5,480 2,520 5,540 2,100 394 314 43 38 

16 1,810 363 328 41 38 17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

249 1,420 1,450 4,870 2,620 5,520 256 1,390 1,420 4,500 2,740 4,290 1,550 342 308 38 38

268 1,420 1,390 4,500 3,200 3,310 1,420 328 294 38 37

379 1,450 1,390 4,360 3,680 2,420 1,330 314 268 36 36

418 1,420 1,420 4,360 4,080 1,900 1,270 294 249 35 38

434 1,390 1,480 4,500 4,220 1,810 1,300 282 223 34 38 

450 

522 

558 

594 

1,390 

1,390 

1,390 

1,390 

1,520 

1,550 

1,580 

1,580 

4,500 

4,670 

4,670 

4,870 

4,220 

4,080 

3,940 

3,940 

1,690 

1,690 

1,720 

a1,990 

1,360 

1,390 

1,480 

1,620 

256 

236 

223 

204 

204 

186 

168 

156 

33 

32 

31 

30 

38 

37 

36 

35 

594 1,420 1,620 4,980 3,940 2,160 1,830 192 141 31 33 

594 

558 

522 

1,420 

1,450 

1,450 

1.690 

1,770 

1,810 

5,100 

4,980 

4,870 

3,810 

3,550 

3,200 

2,520 

3,080 

3,200 

2,600 

3,810 

3,940 

186 

174 

180 

131 

124 

116 

32 

33 

33 

32 

30 

29 504 1,480 1,900 - 3,080 2,960 3,810 180 106 34 28 - 1,520 2,160 - 2,850 - 3,680 - 99 36 -

Per Runoff Second- Month Maximum Minimum Mean square foot-days mil. Inches Acre-feet 

hIrcv2HEiM:C EU

130 0.049 0.06 7,990 327 .122 .14 19,460 1,250 .468 .54 76,880 

2,263 .847 11.51 1,638,000 

1,638 .613 .71 100,700 '4,391 1.64 1.77 252,600 3,664 1.37 1.58 225,300 2,424 .908 1.01 144,200 1,896 .710 .82 116,600 932 .349 .39 55,430 238 .089 .10 14,620 48.5 .018 .02 2,980 38.1 .014 .02 2,270 

October 4,029 192 November 9,810 594 December 38,758 1,690 

Calendhr year 1947 825,885 10,300 _ 

January 50,790 2,160 February 127,350 7,350 March 113,570 4,770 April 72,710 5,540 May 58,780 3,940 June 27,946 3,550 July 7,372 342 August 1,503 91 September 1,144 46 

Water year 1947-48 513,762 7,350 28 1,404 .526 7.16 1.,019,000 

Peak discharge base, 2,700 sec.-ft.).- Feb. 12 8 a.m. 7,350 sec.-ft.; Mar. 22 (8 a.m. 4,220 sec.-ft.; Apr. 6:5D p.m.) 5,860 sec.-ft.; Apr. 29 (8 a.m.) 3,310 seo.-ft.; May 28 (9 p.m.) 4,080 sec.-ft. 

a No gage-height record; discharge interpolated. 
----- _ _ _ _ 

NECHES RIVER BASIN 38 

Neches River near Rockland, Tex. 

Location.- Staff gage, lat. 31°01.45", long. 94'23.50", 2,200 feet downstream from bridge 

---m-u7-s. Highway 69, 2,100 feet upstream from Texas & New Orleans Railroad bridge, 

1 mile north of Rockland, Tyler County, and 3.6 miles downstream from Billams Creek. 

Datum of gage is 91.4 feet above mean sea level, datum of 1929. 

Drainage area.- 3,539 square miles. 

Records available.- July 1903 to September 1948. (July 1903 to September 1923, monthly 

records only, in Water-Supply paper 850.) U. S. Weather Bureau has collected gageheight records in this vicinity since 1903. 

Average discharge.- 42 years (1903-10, 1913-48), 2,544 second-feet. 

Extremes.- Maximum discharge during year, 8,520 seccod-feet Feb. 16 (gage height, 15.34 

feet); minimum observed, 36 second-feet Sept. 30. 

1903-48: Maximum discharge, 49,800 second-feet May 6, 1944 (gage height, 31.84 

feet); minimum observed during period of daily records, 3.0 second-feet Oct. 15, 1931. 

Maximum stage known, 34.9 feet in May 1884, from information by local resident. 

Remarks.- Records good. Gage read twice daily. No large diversions above station. 

Hevisison (water years).- W 878: 1926-27. 

Rating table, water year 1947-48 (gage height, in feet,

and discharge, in second-feet) 

(Shifting-control method used Oct. 1 to Nov. 18) 

-0.8 28 0.5 246 5.0 2,200 

-.6 48 1.0 382 7.0 3,300 -.4 74 1.5 556 11.0 5,700 

-.2 106 2.0 754 15.5 8,680 

0 142 3.0 1,200 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 209 117 614 1,450 2,420 5,640 3,660 3,140 3,480 220 133 49 2 200 108 575 1,500 2,480 5,520 3,360 3,190 3,600 220 124 46 3 192 108 556 1,500 2,530 5,400 3,140 3,240 3,720 224 111 44 4 188 115 780 1,550 2,530 5,280 2,860 3,190 3,720 275 103 44 5 184 133 1,400 1,600 2,530 5,160 2,530 2,970 3,660 316 95 42 

6 180 152 1,650 1,600 2,480 5,160 2,310 2,530 3,360 404 90 46 7 172 188 1,550 1,650 2.420 5,160 2,100 2,100 2,970 448 87 48 8 166 202 1,500 1,700 2,910 5,160 1,950 1,850 2,530 421 87 50 9 156 215 1,500 1,750 4,860 5,280 1,800 1,650 2,050 401 82 114 10 148 237 1,450 1,800 5,340 5,220 1,750 1,500 1,550 401 77 176 

11 140 260 1,550 1,800 5,700 4,980 1,700 1,400 1,080 401 74 154 12 137 268 1,600 1,850 6,260 4,620 1,650 1,300 860 395 68 103 13 131 768 1,900 1,900 6,970 4,320 2,480 1,300 734 355 63 74 14 126 273 1,900 1,850 7,820 4,020 4,380 1,300 634 321 59 63 15 126 286 7,200 1,700 8,450 3,660 4,920 1,500 556 307 55 60 

16 124 270 2,200 1,650 8,520 3,360 5,340 1,700 500 310 55 58 17 119 778 2,000 1,650 8,450 3,080 5,160 1,850 448 352 53 53 18 12, 382 1,900 1,650 8,020 2,920 4,920 1,950 404 358 48 49 19 122 556 1,800 1,600 7,490 2,800 4,980 1,800 379 341 47 46 20 122 575 1,700 1,600 6,900 2,750 5,040 1,600 564 318 47 46 

21 120 537 1,600 1,600 6,710 2,860 4,860 1,450 346 293 46 43 22 117 654 1,550 1,550 6,900 3,190 4,320 1,300 330 275 45 44 23 111 926 1,500 1,550 6,520 3,780 3,600 1,300 313 246 42 44 24 108 1,130 1,450 1,550 6,260 4,140 3,080 1,350 291 228 40 45 25 108 970 1,450 1,600 6,320 4,440 2,920 1,400 270 211 39 48 

26 108 860 1,400 1,600 6,190 4,560 3,360 1,560 256 194 40 47 27 108 796 1,400 1,900 6,000 4,560 3,900 2,360 239 178 45 43 28 108 714 1,400 2,150 5,820 4,380 3,900 2,310 226 166 53 40 29 108 674 1,400 2,260 5,760 4,260 3,480 2,700 224 156 55 38 30 113 634 1,400 2,310 - 4,080 3,140 3,080 215 144 55 37 31 119 - 1,400 2,360 - 3,900 - 3,300 137 53 -

Per 

foot-days Second- Runoff Month Maximum Minimum Mean square 

mile Inches Acre-feet 

October 4,292 

I , 

7'8 §rg 010 

tn (

41 t

n8CI ICOo) cz

138 0.039 0.04 430 .122 .14 1,493 .422 .49 

November 12,886 December 46,275

Calendar year 1947 3,332 .942 12.79 N

_ 12.1f,_115- _ _ - _ January 53,780 February 1,735 

5,571 

4,311 

.490 

1.57 

1.22 

.57 

1.70 

1.40 3,420 .966 1.08 2,038 

1,310 291 

.576 

.370 

.082 

.66 

.41 

.09 66.8 .019 .02 59.8 .017 .02 

161,560 March 133,640 April

May 102,590 

63,170 June ' July 39,309 

9,016 August

September 2,071 

1,794 

Water year 1947-48 630,383 8,520 37 1,722 .487 6.62 1,250,000 Peak discharge ase, 5,200 aec.-ft. .- Feb. 16 (7:30 a.m. to 4:40 p.m.) 8,520 sec.-ft. . . 
NECHES RIVER BASIN 39 

Neches River at Evadale, Tex. 

Location.- Staff gage, lat. 30°21', long. 94°05', at bridge on U. S. Highway 96, 200 feet 

-77.pRI7am from Gulf, Colorado & Santa Fe Railway bridge at Evadale, Jasper County, and 

15 miles upstream from Village Creek. Datum of gage is 8.25 feet (revised) above mean 

sea level, datum of 1929, Galveston-Houston supplementary adjustment of 1936. 

Drainage area.- 7,908 square miles. 

Records available.- July 1904 to December 1906, October 1923 to September 1948. 

Average discharge.- 27 years (1904-6, 1923-48), 6,757 second-feet. 

Extremes.- Maximum discharge during year, 22,800 second-feet Feb. 24, 25 (gage height, 

16.10 feet); minimum observed, 260 second-feet. Sept. 7, 8, 30. 

1904-6, 1923-48: Maximum discharge, 92,100 second-feet May 11, 1944 (gage height, 

23.58 feet, from floodmark): minimum observed, about 148 second-feet Sept. 10, 1925. 

Maximum stages known, 26.2 feet in May 1884 (discharge, about 175,000 second-feet, 

from rating curve extended above 72,000 second-feet by logarithmic plotting), and 

24.5 feet in August 1915 (discharge not determined), from records of Gulf, Colorado & 

Santa Fe Railway Co. 

Remarks.- Records good. Gage read twice daily. No large diversions above station. 

-71-F6,Tfds of chemical analyses and water temperatures for water year 1948 are given in 

Water-Supply Paper 1133. 

Revisions (water years).- W 718: 1929. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec Jan. Feb. Mar. Apr. May June July Aug. Sept 

565 490 2,500 3,960 7,760 18,600 8,660 8,100 7,120 760 478 290 2 590 502 2,260 4,180 7,760 18,000 8,660 7,920 7,120 760 452 290 3 602 490 2,080 4,430 7,600 17,500 8,460 7,440 7,120 730 440 282 4 628 490 1,980 4,520 7,600 17,000 8,100 7,120 6,820 715 440 268 5 628 490 2.030 4,430 7,440 17,000 1,760 6,820 6,280 715 410 268 

6 

7 

8 

9 

10 

628 

615 

602 

578 

565 

528 

615 

655 

700 

760 

2,700 

3,750 

4,700 

5,440 

6,280 

4,430 

4,430 

4,340 

4,260 

4,100 

7,280 

7,280 

7,280 

7,440 

7,920 

17,000 

16,000 

15,500 

15,100 

14,700 

7,280 

6,960 

6,540 

6,280 

6,030 

6,680 

6,280 

5,910 

5,440 

4,900 

5,910 

5,550 

5,220 

4,900 

4,430 

715 

790 

855 

960 1,060 

390 268 410 260 370 260 360 282 350 290 

11 

12 

13 

14 

15 

540 790 515 890 502 1,030 490 1,180 478 1,260 

6,680 

6,410 

6,410 

6,540 

7,440 

4,030 

4,180 

4,700 

5,110 

5,440 

9,280 

11,400 

13,500 

15,500 

17,000 

13,900 

13,500 

13,500 

12,800 

12,200 

5,790 

5,400 

5,220 

5,330 

6,280 

4,700 

4,610 

4,520 

4,260 

3,890 

3,890 

3,340 

2,800 

2,300 

1,980 

1,100 

1,100 

1,260 

1,220 

1,140 

340 320 340 430 330 440 330 430 312 410 

16 

17 

18 

19 

20 

465 1,260 452 1,420 452 1,460 465 1,420 452 1,540 

8,100 

8,660 

9,060 

8,660 

7,760 

5,550 

5,440 

4,900 

4,700 

4,610 

18,000 

18,600 

19,800 

20,400 

21,000. 

11,700 

10,400 

9,500 

8,860 

8,280 

8,660 

11,700 

13,500 

15,100 

16,500 

3,890 

3,960 

4,180 

4,430 

4,520 

1,800 

1,670 

1,500 

1,380 

1,300 

1,060 995 

925 

925 

960 

305 380 298 360 290 340 290 330 282 330 

21 

22 

23 

24 

25 

452 1,670 465 1,850 478 2,160 478 2,400 478 2,920 

6,680 

5,910 

5,330 

5,000 

4,700 

4,700 

4,700 

4,700 

4,610 

4,610 

21,600 

22,200 

22,200 

22,800 

22,800 

7,920 

7,600 

7,280 

7,440 

7,760 

16,500 

15,500 

14,300 

12,800 

11,100 

4,610 

4,430 

4,180 

4,030 

3,960 

1,220 

1,140 

1,060 

1,030 960 

995 

960 

890 

820 

760 

275 

275 

275 

268 

268 

312 

305 

298 

290 

282 

26 

27 

28 

29 

30 

31 

478 3,400 478 3,680 478 3,540 465 3,220 465 2,800 465 

4,520 

4,260 

4,180 

4,030 

4,030 

3,960 

4,520 

4,900 

5,220 

5,910 

6,820 

7.440 

21,600 

21,000 

20,400 

19,200 

8,100 

8,460 

8,660 

8,660 

8,660 

8,660 

9,500 

7,920 

7,280 

7,600 

7,920 

3,820 

3,890 

4,430 

5,910 

6,960 

7,120 

925 

890 

820 

790 

760 

715 

655 

615 

578 

552 

502 

268 

268 

268 

282 

290 

282 

275 

268 

268 

268 

260 

Month Secondfoot-days Maximum Minimum Mean Per square 

mile 

Runoff 

Inches Acre-feet 

October 

November 

December 

15,992 

45,610 

162,040 

628 3,680 

9,060 

452 

490 1,980 

516 1,520 

5,227 

0.065 

.192 

.661 

0.08 

.01 

.76 

31,720 

90,470 

321,400 

Calendar year 194 7 2,904,958 34,600 440 7 ,959 1.01 13.66 5,762,000 

January 

February 

March 

April

May 

June 

July 

August 

September 

149,870 

433,640 

370,240 

278,670 

162,910 

92,025 

26,787 

10,236 

9,354 

7,440 

22,800 

18,600 

16,500 

8,100 

7,120 

1,260 478 

440 

3,960 

7,280 

7,280 

5,220 

3,820 760 

502 

268 

260 

4,835 

14,950 

11,940 

9,289 

5,255 

3,068 864 

330 

312 

.612 

1.89 

1.51 

1.18 

.665 

.388 

.109 

.042 

.039 

.71 

2.04 

1.74 

1.31 

.77 

.43 

.13 

.05 

.04 

297,300 

860,100 

734,400 

552,700 

323,100 

182,5u0 

53,130 

20,300 

18,550 

Water year1947-48 1,757,374 22,800 260 4,802 .607 8.27 3,486,000 

905771 o - 50 - 4 
			

						

40 NECHES RIVER BASIN 

Mud Creek near Jacksonville, Tex. 

Location.- Water-stage recorder, lat. 31°58'40", long. 95°09'40", at bridge on U. S. 

Highway 79, 0.6 mile downstream from Caney Creek, 3.9 miles downstream from another 

Caney Creek, 4 miles downstream from International-Great Northern Railroad bridge, 

and 6.9 miles east of Jacksonville, Cherokee County. Datum of gage is 271.6 feet 

above mean sea level, datum of 1929. 

Drainage area.- 382 square miles. 

Records available.- May 1939 to September 1948. 

Extremes.- Maximum discharge during year, 3,510 second-feet May 14 (gage height, 6.70 

feet); minimum, 0.2 second-foot Aug. 21, 22 (gage height, 1.18 feet). 

1939-48: Maximum discharge, 23,400 second-feet May 3, 1944 (gage height, 14.09 

feet); no flow at times. Maximum stage known occurred in May 1884, from information by local residents. 

Remarks.- Records good. No large diversions above station. 

Discharge, in second-feet. water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. 1 Mar. Apr. May June July Aug. Sept. 

1 

2 

3 

4 

5 

34 

33 

32 

32 

31 

52 

52 

47 

42 

40 

83 

80 

80 

179 

312 

341 

324 

292 

324 

348 

818 

744 

677 

660 

669 

486 

561 

635 

618 

635 

270 

242 

218 

198 

184 

318 

177 

142 

129 

135 

120 

102 

88 

80 

75 

80 

67 

52 

44 

41 

54 

4.8 

6.3 

6.3 

4.8 

9.8 

9.1 

7.7 

6.1 

4.5 

6 

7 

8 

31 

31 

31 

40 

47 

56 

292 

364 

635 

348 

283 

232 

677 

669 

840 

677 

652 

582 

180 

180 

177 

184 

227 

252 

70 

65 

62 

39 

36 

34 

4.3 

3.9 

3.7 

3.6 

3.0 

2.4 

9 31 76 660 210 1,610 522 247 270 60 32 3.7 1.8 

10 30 88 610 206 1,280 498 348 264 56 33 5.2 1.5 

11 

12 

13 

30 

29 

28 

83 

80 

78 

644 

714 

704 

202 

202 

222 

1,400 

1,640 

1,420 

475 

455 

450 

276 

214 

234 

312 1,330 

2,560 

54 

52 

48 

44 

48 

48 

5.4 5.6 4.8 13 3.6 12 

14 

15 28 

28 80 

100 582 547 252 

247 1,180 

1,090 450 

440 544 

540 3,080 1,880 45 

43 39 31 2.7 12 2.0 12 

16 

17 27 

27 114 

120 596 547 242 303 1,020 855 398 372 465 

450 1,120 764 

41 

39 26 23 1.2 15 .8 12 

18 27 120 596 348 744 348 418 610 37 20 .4 15 

19 27 108 704 381 635 336 294 418 34 18 .3 15 

20 27 111 754 460 561 324 194 284 32 16 .3 13 

21 26 111 660 547 568 302 160 232 30 15 .2 12 

22 28 117 516 618 618 464 142 194 28 12 .4 10 

23 28 138 369 589 589 694 135 163 26 11 1.5 9.8 24 27 149 284 547 627 754 138 142 24 9.4 2.4 8.5 25 27 163 252 540 644 916 188 135 22 8.7 2.2 7.7 

26 27 166 232 582 635 879 426 142 23 7.7 1.8 5.8 27 31 160 218 806 596 724 398 170 23 7.1 1.8 3.9 28 35 135 206 764 561 561 372 177 26 6.3 4.3 3.2 29 43 105 198 677 510 430 426 170 53 6.7 4.6 2.7 30 50 91 194 714 363 455 163 86 6.7 6.1 2.7 31 50 198 794 312 142 5.8 8.1 

Month Secondfoot-days Maximum Minimum Mean Per square 

mile 

Ru noff 

Inches Acre-feet 

October 966 50 26 31.2 0.082 0.09 1,920 

November 2,869 166 40 95.6 .250 .28 5,690 

December 13,010 754 80 420 1.10 1.27 25,803 

Calendar year 194/ 146,162 5,730 6.7 400 1.05 14.23 289,900 

January 

February 

March 

12,945 

24,537 

16,313 

806 1,640 916 

202 

510 

302 

418 

846 

526 

1.09 

2.21 

1.38 

1.26 

2.39 

1.59 

25,680 

48,670 

32,360 

April 

May 

June 

8,713 

16,286 

1,544 

544 3,080 120 

135 

129 

22 

290 

525 

51.5 

.759 

1.37 

.135 

.85 

1.59 

.15 

17,280 

32,300 

3,060 

July 

August 

September 

867.4 

103.3 

240.4 

80 

8.1 

15 

5.8 

.2 

1.5 

28.0 

3.33 

8.01 

.073 

.0087 

.021 

.08 

.01 

.02 

1.720 

205 

477 

Water year 1947-48 98,394.1 3,080 .2 269 .704 9.58 195,200 

Peak discharge (base, 1,400 sec.-ft.).- Feb. 9 (2 p.m.) 1,720 sec.-ft.; Feb. 12 (9 a.m.) 1,700 sec.-ft.; Nay 14 (12:30 a.m.) 3,510 sec.-ft. 
NECHES RIVER BASIN 41 

Angelina River near Alto, Tex. 

Location.- Chain gage, lat. 31°40', long. 94°58', at bridge on State Highway 21, 3 miles 

M-11311r.eam from Bingham Creek and 7 miles east of Alto, Cherokee County. Datum of gage 

is 204.3 feet above mean sea level, datum of 1929. 

Drainage area.- 1,274 square miles. 

Records available.- May to August 1940 (discharge measurements only). September 1940 to 

September 1948 (fragmentary for 1941, 1942, 1944-48). 

Extremes.- Maximum gage height observed during year, 18.26 feet Feb. 15 (discharge not 

determined); minimum discharge observed, 14 second-feet Aug. 25. 

1940-48: Maximum gage height observed, 21.52 feet May 5, 1944 (may have been 

higher during period of no gage-height record in November 1940): minimum discharge 

observed, 11 second-feet Aug. 30, 31, Sept. 25-27, 1943. 

Remarks.- Records good. Discharge above 2,300 second-feet not computed. Gage read twice 

daily. No large diversions above station. 

Revisions.- W 1088: Drainage area. 

Discharge, in second-feet. water year October 1947 to September 1948 

Day Oct. Nov. Dec. T Jan. Feb Mar. Apr May June July Aug. Sept. 

132 114 416 702 2,180 1,800 1,200 622 146 54 52 

112 118 392 734 1,560 1,180 522 262 49 48 

101 123 368 766 2,300 1,320 1,100 440 228 41 48 

4 97 128 404 834 2,180 1.120 978 392 212 44 46 

5 94 123 466 906 2,030 942 834 333 223 27 40 

6 92 128 480 960 1,960 834 782 300 186 32 36 7 92 141 536 978 2,300 1.390 750 a654 262 171 30 32 

8 92 146 750 978 1,830 702 a578 234 146 29 30 9 90 156 782 942 1,770 654 a536 218 132 28 28 10 89 186 852 906 1.710 622 508 206 123 26 26 

11 88 201 978 834 1,660 592 564 191 114 26 26 12 88 206 1,120 750 1.610 592 960 181 113 24 26 13 87 218 1.200 702 1.520 734 960 171 141 23 26 14 85 256 1.280 654 1,430 998 1.060 156 166 22 26 15 84 311 1.340 622 1,360 1.100 1,320 146 161 22 26 

16 84 300 1.360 638 1.280 1,180 1,890 136 156 20 28 17 82 300 1.360 702 1,220 1,200 128 123 20 28 18 81 356 1,360 750 1.190 1,240 123 104 19 30 19 82 368 1.340 798 1.140 1,260 114 95 19 30 20 82 356 1,320 888 1.080 1,22C 109 86 18 29 

21 82 392 1,280 978 1,060 1,140 104 78 17 28 22 80 416 1,24C 1.080 1,410 a998 1,960 100 71 16 28 23 81 440 1,220 1,160 1,430 870 1,540 92 65 15 28 24 82 440 1.200 1,220 1,470 766 1,100 88 59 15 27 25 82 466 al.140 1.300 1,610 782 734 85 54 15 26 

26 82 494 1,080 1,380 1.830 1,020 550 81 49 16 26 27 82 508 978 1,56C 2,120 1,020 503 78 46 16 24 28 90 466 870 1.660 1,080 522 76 43 18 23 29 96 440 750 1,740 1,140 550 100 40 30 22 30 108 428 670 1,830 2,300 1,200 606 108 37 40 22 31 114 622 1,960 2.030 670 45 5! 

Per Runoff Second- Month Maximum Minimum Mean square foot-days mile nches Acre-feet

October 2.813 132 80 90.7 0.072 0.08 5,580 

November 8,725 508 114 291 .231 .26 17,310 

December 29,154 1,360 368 940 .745 .86 57,830 

Calendar year 

January ... 31,912 1,960 622 1,029 .816 .94 63,300 

February 2,180 March 1,060 April 30.436 1,800 592 1,015 .805 .90 60,370 

May 508 June 5,896 622 76 197 .156 .17 11,690 July 3,675 262 37 119 .094 .11 7,290 August 834 54 15 26.9 .021 .02 1,650 September 915 52 22 30.5 .024 .03 1,810 

Water year 

a No gage height record; discharge computed on basis of estimated gage heights 
	

NECHES RIVER BASIN 42 

Angelina River near Lufkin, Tex. 

Location.- Water-stage recorder, lat. 31°27'40", long. 93°43'35", at bridge on U. S. Highway 55, 400 feet upstream from Procella Creek, half a mile downstream from Little Loco 

Bayou, 1.5 miles upstream from Texas & New Orleans Railroad bridge and 8 miles north of 

Lufkin, Angelina County. Datum of gage is 164.72 feet above mean sea level, datum of 

1929. Drainage area.- 1,575 square miles. 

Records available.- October 1923 to September 1934, July 1939 to September 1948. 

Average discharge.- 20 years, 1,438 second-feet. 

Extremes.- Maximum discharge during year, 5,630 second-feet Feb. 22 (gage height, 11.76 

feet); minimum, 20 second-feet Aug. 26. 1923-34, 1939-48: Maximum discharge, 38,200 second-feet Feb. 24, 1932; maximum 

gage height, 18.55 feet May 7, 1944; minimum discharge. 2.3 second-feet Oct. 12, 1939. 

Maximum stage known, about 26.5 feet in May 1884, from information by local residents. 

Remarks.- Records good. No large diversions above station. 

Revisions (water years).- W 718: 1924, 1926. 

Rating table, water year 1947-48 (gage height, in feet, 

and discharge, In second-feet) (Shifting-control method used Oct. 7 to Jan. 13) 

0.8 18 3.5 140 8.0 1,080 1.0 22 4.0 173 9.0 1,660 1.2 28 4.5 208 10.0 2,450 

1.5 36 5.0 254 10.5 3,090 2.0 55 5.5 325 11.0 3,900 2.5 79 6.0 420 11.5 4.980 3.0 108 7.0 680 12.0 6,300 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan Feb. Mar. Apr. May June July Aug. Sept. 

1 184 117 465 1,130 2,160 3,400 2,400 1,290 715 137 49 40 

2 163 120 452 1,060 2,200 3,240 2,450 1,320 715 150 49 54 

3 146 120 440 990 2,250 3,160 2,400 1,350 680 184 54 56 

4 134 124 528 968 2.350 3.020 2,250 1,320 605 248 53 52 

5 120 130 680 945 2.450 2,950 2,040 1,260 528 248 48 50 

6 114 137 715 945 2,620 2,950 1,800 1,200 452 238 47 49 7 108 150 635 1,010 2,740 2,880 1,500 1,180 400 238 45 46 

8 102 163 802 1,060 3,670 2,740 1,230 1,080 352 224 41 43 9 102 166 1,230 1,080 5,240 2,620 1,060 880 316 198 38 44 10 99 163 1,540 1,100 4,980 2,450 945 698 300 184 33 39 

11 99 166 1,410 1,130 4,620 2,300 880 808 272 176 34 38 12 96 176 1,200 1,130 4,280 2,200 820 1,060 254 166 32 35 13 93 187 1,130 1,060 3,990 2,120 1,820 1,180 233 156 31 32 14 90 194 1,180 968 3,820 2,080 2,500 1,410 220 150 30 32 15 90 204 1,290 880 3,820 2,000 1,900 1,350 208 160 29 30 

16 87 233 1,440 820 3,990 1,960 1,700 1,230 198 173 28 30 17 87 260 1,540 802 4,280 1,860 1,540 1,290 187 176 27 30 18 87 293 1,600 820 4,860 1,800 1,410 1,470 180 170 25 30 19 84 361 1,630 860 5,240 1,700 1,410 1,700 170 156 24 31 20 82 361 1,630 922 5,240 1,600 1,410 1,930 163 134 24 32 

21 82 352 1,600 968 5,240 1.500 1,410 2,16C 153 117 24 33 22 82 380 1,600 1,060 5,630 1,630 1,380 2,450 146 105 23 33 23 82 465 1,570 1,160 5,240 1,860 1,380 2.680 137 93 22 32 24 79 502 1,570 1,230 4,980 1,930 1,320 2,740 127 84 21 31 25 79 490 1,500 1,290 4,500 a2,040 1,260 2,620 124 76 21 30 

26 79 465 1,470 1,380 4,180 a2,120 1,540 2,160 120 69 20 30 27 79 465 1,440 1,660 3,900 a2,000 1,700 1,540 117 64 22 28 28 79 478 1,410 1,900 3,730 a2,000 1.730 1,060 114 60 24 27 29 79 490 1,290 2,000 3,480 a2,080 1,540 945 117 56 26 26 30 90 478 1,180 2,080 2,200 1,350 820 124 53 29 25 31 111 1,080 2,120 2,300 732 50 35 

Per R noff Second- Month Maximum Minimum Mean square foot-days mile Inches Acre-feet

October 3,088 184 79 99.6 0.063 0.07 6,120 November 8,390 502 117 280 .178 .20 16,640 December 37,247 1,630 440 1,202 .763 .88 73,880 

Calendar year 1947 636,829 10,100 62 1,745 1.11 15.04 1,263,000 

January 36,528 2,120 802 1.178 .748 .86 72,450 February 115,680 5,630 2,160 3,989 2.53 2.73 229,400 March 70,690 3,400 1,500 2,280 1.45 1.67 140,200 April 48,075 2,500 820 1,602 1.02 1.14 95,360 May 44,913 2,740 698 1,449 .920 1.06 89,080 June 8,427 715 114 281 .178 .20 16,710 July 4,493 248 50 145 .092 .11 8,910 August 1,010 54 20 32.6 .021 .02 2,000 September 1,088 56 25 36.3 .023 .03 2,160 

Water year 1947-48 379,629 5,630 20 1,037 .658 8.97 752,900 

Peak discharge (base, 2,800 sec.-ft.).- Feb. 9 (6 p.m.) 5,370 sec.-ft. Feb. 19 (4 p.m ) 5,240 sec.-ft.; Feb. P2 (12 m.) 5,630 sec.-ft. a No gage-height record; discharge computed on basis of recorded range in stage and weather rec- ords. 
43 MECHES RIVER BASIN 

Angelina River at Horger, Tex. 

Location.- Wire-weight gage, lat. 31°00', long. 94°10', at bridge on State Highway 63, a 

quarter of a mile east of Horger, Jasper County, 7 miles upstream from Indian Creek, 

and 20 miles upstream from mouth. Datum of gage is 68.6 feet above mean sea level, 

datum of 1929 (levels by Corps of Engineers). 

Drainage area.- 3,435 square miles. 

He':ords available.- March 1928 to September 1948. 

Average discharge.- 20 years, 3,246 second-feet. 

Extremes.- Maximum discharge during year, 11,500 second-feet Feb. 18 (gage height, 20.47 

feet); minimum observed, 66 second-feet Aug. 25 (gage height, 0.62 foot). 

1928-48: Maximum discharge, 49,900 second-feet May 6, 1944 (gage height, 36.90 

feet); minimum observed, 13 second-feet Sept. 22, 1937. 

Maximum discharge known, 82,000 second-feet in August 1915 (gage height, 39.5 feet, 

from information by local residents), from rating curve extended above 50,000 secondfeet. 

Remarks.- Records good. Gage read twice daily, oftener during high stages. Occasional 

backwater from Neches River. No large diversions above station. 

Revision (water year).- W 928: 1932 (yearly total acre-feet). 

Rating table, water year 1947-48 (gage height, in feet, and discharge, in second-feet) (Shifting-control method used Oct. 1 to Nov. 22, June 11 to Aug. 16) 

0.6 64 2.5 490 8.0 3,050 .8 90 3.0 646 10.0 4,200 1.0 124 3.5 828 13.0 6,000 1.2 162 4.0 1",040 16.0 8,000 1.5 224 5.0 1,490 19.0 10,150 2.0 348 6.0 1,980 21.0 12,000 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. ...„ „... OOOV EHHE aHE MEEV

265 182 OOOOO 222 2 84882 2::722 22222 222222 m 20 00 ON ,400

7MOIMMOD07 2 2222 

nC,;44; ,, 

221A2,2 22.(:12?, agggg 22,2,2g :;0782 222222 2 e~ t~ 0710r207 00

700.0122 MON ,0In N r.00 

M CAM MW , 

,7;7 .cs ,7N. NNN rINN 

3,740 

3,680 

3,680 

3,680 

3,680 

3,620 

3.620 

4,090 

6,960 

8,630 

9,790 

3,560 3,160 3,390 246 146 75 3,450 2,940 2,550 243 137 80 3,220 2,720 1,730 253 128 84 3,220 2,340 1,400 296 122 87 2,990 2,080 1,220 309 117 87 

2,990 1,980 1,130 343 115 93 2,940 1,880 1,040 358 119 101 2,880 1,980 954 374 119 110 2,830 2,290 870 374 . 120 202 2,660 2,190 788 374 120 142 

2,400 2,190 697 430 111 128 

1 258 190 248 238 2 

3 

4 238 282 5 238 291 

6 220 286 7 206 322 g 194 296 9 186 322 10 174 505 

11 166 582 12 182 490 13 158 402 14 158 445 15 154 490 

16 150 535 17 150 598 18 148 788 19 162 808 20 172 1,060 

21 182 1,130 22 184 1,130 23 190 1,540 24 194 2,500 

25 186 2,340 

26 178 2,140 27 170 1,730 28 166 1,440 29 162 1,170 30 182 954 

10,300 2,140 1,930 646 416 106 129 10,300 3,110 1,780 598 388 103 131 10,600 7,630 2,080 550 348 96 128 10,900 9,850 2,190 520 327 92 133 

11,100 

11,400 

11,500 

11,000 

10,200 

10,300 2,190 490 330 87 131 9,480 2,290 460 356 86 122 8,420 2,340 430 348 82 113 7,510 2,290 402 340 79 103 6,460 2,240 374 322 76 96 

9,700 5,520 2,190 366 296 74 93 9,700 4,680 2,240 343 277 71 87 9,550 3,680 2,190 322 260 69 84 9,050 2,940 2,080 294 238 69 84 8,770 

8,700 

8,700 

8,700 

8,770 

-

-

2,720 2,140 270 220 68 82 

3,160 2,400 262 206 76 79 3,620 3,270 258 192 76 76 3,740 3,270 248 180 74 76 3,680 3,390 243 162 82 74 3,390 3,680 236 156 79 74 31 178 - 3,740 - 150 74 -

Per Runoff Second- Month Maximum Minimum Mean square 

-

foot-days mile Inches Acre-feet - - October 5,779 265 148 186 0.054 November 25,186 2,500 182 840 .245 December 75,399 4,320 750 2,432 .708 

- - - - Calendar year 1947 1,333,590 18,100 136 3,654 1.06 

January 70,030 3,680 1,540 2,259 .658 February 234,100 11,500 3,620 8,072 2.35 March 156,680 8,700 3,160 5,054 1.47 April 135,170 10,300 2,140 4,506 1.31 May 75,670 3,740 1,780 2,441 .711 June 23,081 3,390 236 769 .224 July 9,112 430 150 294 .086 August 2,973 146 68 95.9 .028 September 3,084 202 74 103 .030 

228 §1 882882,282 

0 1 ..0.00.01D 

iN 1 

W rN iviWyOW NOOMM 9cs'9 1"!ItYgr 9o. O V

7N r4 .4 

Water year 1947-48 816,264 11,500 68 2,230 .649 8.84 1,619,000 Peak discharge (base, 9,000 sec.-ft.).- Feb. 18 10 a.m.) 11,500 sec.-ft.; Apr. 16 (7 a.m.) 10,400 sec.- . 
44 NECHES RIVER BASIN 

Striker Creek near Summerfield, Tex. 

Locationt - Wire-weight gage, lat. 32°00'10", long. ?4°59'35", at bridge on U. S. Highway 

79, 3f miles downstream from Johnson Creek and 6f miles northeast of Summerfield, 

Cherokee County. Datum of gage is 287.0 feet above mean sea level, datum of 1929. 

Drainage area.- 148 square miles. 

Records available.- May to August 1940 (discharge measurements only). September 1940 to 

September 1948. 

Extremes.- Maximum discharge observed during year, 1,710 second-feet May 13 (gage height, 

9_94 feet); minimum observed, 1.2 second-feet Aug. 24, 25. 

1940-48: Maximum discharge, 10,800 second-feet Nov. 24, 1940 (gage height, 17.23 

feet, from floodmark), from rating curve extended above 5,000 second-feet by velocityarea studies; minimum observed, 0.7 second-foot Aug. 31, Sept. 1, 1943. 

Remarks.- Records fair. Gage read twice daily, oftener during high stages. No large 

diversions above station. 

Revisions (water years).- W 1088: Drainage area. 

Discharge, in second-feet, water year October 1947 to September1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 18 24 48 111 284 222 116 121 70 40 3.4 15 

2 18 24 44 281 289 218 110 102 58 47 3.2 11 

3 17 23 44 432 268 268 104 91 49 52 3.1 8.2 

4 17 21 69 318 232 324 99 82 43 53 6.3 

5 17 20 164 200 212 273 94 78 37 47 1:0 5.2 

6 17 20 574 145 214 235 92 92 34 38 2.9 4.4 7 17 26 515 116 246 237 92 164 32 31 2.8 3.8 8 17 33 476 102 352 251 92 235 30 27 2.8 3.3 9 17 50 739 94 814 226 93 183 29 25 2.5 3.1 

10 17 65 665 92 1,260 202 105 131 28 22 2.6 3.1 

11 17 61 400 90 839 194 120 149 28 21 2.5 3.1 12 17 53 248 90 641 183 116 954 25 20 2.5 3.2 

13 17 55 169 92 814 167 145 1,560 24 21 2.4 3.3 

14 17 • 60 128 103 789 153 256 899 23 22 2.3 3.9 15 17 59 128 135 544 148 387 395 21 23 2.2 4.0 

16 17 77 201 135 380 145 330 204 20 21 2.0 4.2 17 17 99 446 138 281 145 226 131 19 17 1.9 4.5 18 18 95 428 200 230 145 156 104 18 14 1.7 4.7 19 18 88 266 273 204 145 125 92 17 12 1.6 4.7 20 18 80 172 235 186 136 109 87 15 10 1.5 4.2 

21 18 75 130 208 200 132 98 80 14 8.8 1.5 4.0 22 18 83 114 263 260 228 88 71 13 7.8 1.4 3.7 23 18 96 105 364 414 395 84 63 12 7.1 1.3 3.4 24 18 137 99 345 367 641 84 56 11 6.5 1.2 3.3 25 18 169 92 270 295 428 105 53 11 6.0 1.2 3.2 

26 18 140 86 224 273 278 179 51 10 5.4 1.5 3.0 27 19 109 83 327 284 206 352 53 11 5.0 1.9 3.0 28 19 85 79 618 273 162 374 54 17 4.7 2.8 2.9 29 20 68 77 595 244 142 256 71 27 4.3 6.8 2.7 30 22 55 76 404 126 161 91 31 3.9 16 2.5 31 23 78 300 - 119 83 - 3.7 19 -

Second- Per Runoff Month Maximum Minimum Mean square foot-days mile Inches Acre-feet

October 556 23 17 17.9 0.121 0.14 1,100 

November 2,050 169 20 68.3 .462 .52 4,070 

December 6,943 739 44 224 1.51 1.74 13,770 

Calendar year 1947 65,192.0 3,360 7.1 179 1.21 16.38 129,300 

January 7,300 618 90 235 1.59 1.83 14,480 February 11,689 1,260 186 403 2.72 2.94 23,180 March 6,874 641 119 222 1.50 1.73 13,630 April 4,748 387 84 158 1.07 1.19 9,420 May 6,580 1,560 51 212 1.43 1.65 13,050 June 777 70 10 25.9 .175 .20 1,540 July 626.2 53 3.7 20.2 .136 .16 1,240 August 104.6 19 1.2 3.37 .023 .03 207 September 134.9 15 2.5 4.50 .030 .03 268 

Water year 1947-48 48,382.7 1,560 1.2 132 .892 12.16 95,960 

Peak discharge (base, 1,800 sec.-ft.).- No peak above base. 
				

		

		

			

		

		

		

		

		

				

			

		

				

			

		

		

		

		

						

		

		

		

					

NECHES RIVER BASIN 45 

Attoyac Bayou near Chireno, Tex. 

Location.- Water-stage recorder, lat. 31°30'15", long. 94°18'15", at bridge on State 

Highway 21, 3 miles northeast of Chireno, Nacogdoches County, and 7 miles downstream 

from Arenoso Creek. Datum of gage is 169.9 feet above mean sea level, datum of 1929. 

Drainage area.- 502 square miles. 

Records available.- January 1924 to August 1925, July 1939 to September 1948. 

Extremes.- Maximum discharge during year, 3,530 second-feet Feb. 12 (gage height, 17.53 

feet); minimum, 16 second-feet Aug. 23-25, Sept. 28. 

1924-25, 1939-48: Maximum discharge, 31,900 second-feet Nov. 24, 1940 (gage 

height, 25.97 feet); minimum observed, 7.0 second-feet Aug. 27, 1925. 

Maximum stage known, 29.9 feet In June 1912 (result of local storm), from information by local residents. 

Remarks.- Records good. No large diversions above station. 

Rating table, water year 1947-48 (gage height, in feet, and discharge, in second-feet) 

2.8 15 4.2 70 12.0 710 16.0 1,830 3.0 21 5.0 111 13.0 840 16.5 2,250 3.2 28 6.0 180 14.0 1,020 17.0 2,790 3.4 36 8.0 340 15.0 1,300 17.6 3,610 3.8 52 10.0 518 15.5 1,520 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. i Mar. Apr. May June July Aug Sept. 

38 88 232 357 / 2,270 324 300 236 63 28 30 2 37 70 129 491 7721 1,040 300 236 168 107 34 30 3 37 66 126 491 756 906 276 200 136 157 31 28 4 37 63 156 419 732 756 260 192 120 114 28 25 5 36 66 314 332 710 628 244 176 106 88 31 23 

6 36 70 419 276 678 618 236 377 100 6723 28 21 7 36 246 392 244 648 658 228 554 95 26 20 8 36 308 374 220 890 638 220 509 92 57 25 19 9 36 188 556 212 1,720 599 212 308 88 52 25 22 10 36 157 710 204 1,800 554 204 228 85 48 24 34 

11 35 160 756 204 2,030 491 196 682 80 55 23 33 12 35 157 756 200 3,310 437 188 891 75 70 23 32 13 34 132 743 212 3,040 392 707 1,000 72 98 22 29 14 34 152 625 292 2,560 366 1,470 806 75 136 20 28 15 34 204 464 410 2,160 348 2,120 668 70 136 20 28 

16 34 204 473 383 1,830 357 1,600 668 63 120 19 26 17 34 162 446 332 1,630 357 1,230 710 61 78 19 24 18 34 382 401 316 1,470 340 1,020 756 57 56 18 23 19 50 410 348 308 1,360 332 780 680 55 49 17 23 20 68 300 300 332 1,140 324 437 360 52 44 17 22 

21 54 252 268 348 1,090 316 300 220 50 40 17 21 22 46 398 244 357 1,170 348 260 184 47 38 17 20 23 44 668 228 410 1,301 491 260 160 45 36 17 19 24 44 590 220 455 1,300 572 383 143 44 34 16 19 25 43 357 204 464 1,460 608 446 132 42 33 16 18 

26 42 268 196 464 1,800 648 608 132 43 32 19 18 27 42 236 192 527 1,690 710 658 265 44 30 25 17 28 44 192 188 618 1,470 756 599 473 43 29 30 17 29 47 160 184 658 1,340 658 545 464 47 29 28 17 30 75 143 184 688 446 428 357 68 28 28 17 31 106 195 732 357 308 27 29 

Per Runoff Second- Month Maximum Minimum Mean square foot-days mile Inches Acre-feet

October 1,344 106 34 43.4 0.086 0.10 2,670 November 6,849 668 63 228 .454 .51 13,580 December 10,923 756 126 352 .701 .81 21,670 

Calendar year 1947 187,237 5,480 30 513 1.02 13.87 371,400 

January 11,956 732 200 386 .769 .89 23,710 February 42,622 3,310 648 1,470 2.93 3.16 84,540 March 17,221 1,170 316 556 1.11 1.28 34,160 April 16,739 2,120 188 558 1.11 1.24 33,200 May 13,139 1,000 132 424 .845 .97 26,060 June 2,359 236 42 78.6 .157 .17 4,680 July 2,019 157 27 65.1 .130 .15 4,000 August 720 34 16 23.2 .046 .05 1,430 September 703 34 17 23.4 .047 .05 1,390 

Water year 1947-48 126,594 3,310 16 346 .689 9.38 251,100 

Peak discharge (base, 1,900 sec.-ft.).- Feb. 12 (11:30 a.m.) 3,530 sec.-ft.; Apr. 15 (4 a.m.) 2,600 sec.-ft. 
					

				

					

		

				

		

			

			

		

					

					

		

46 NECHES RIVER BASIN 

Village Creek near Kountze, Tex. 

Location.- Water-stage recorder, lat. 30°24', long. 94'16', at bridge on Kountze-Silsbee 

county highway, 1.2 miles upstream from Gulf, Colorado Pt Santa Fe Railway bridge, 3.2 

miles northeast of Kountze, Hardin County, and tq miles downstream from Beech Creek. 

Datum of gage is 25.1 feet above mean sea level, datum of 1929. 

Drainage area.- 837 square miles. 

Records available.- May 1924 to November 1929, April 1939 to September 1948. October 1927 

to November 1929 (discharge measurements only). 

Average discharge.- 12 years (1924-27, 1939-48), 992 second-feet. 

Extremes.- Maximum discharge during year, 2,500 second-feet Feb. 28 (gage height, 12.48 

feet); minimum, 48 second-feet Aug. 22-25. 

1924-27, 1939-48: Maximum discharge, 67,200 second-feet Nov. 26, 1940 (gage height, 

27.6 feet, from floodmark), from rating curve extended above 35,000 second-feet by logarithmic plotting; minimum, 32 second-feet Sept. 28, 1939. 

Maximum stage known, 34 feet in August 1915, present site and datum. Flood of 

May 27. 1929, reached a stage of about 32 feet, present site and datum. Above stages 

were determined on basis of information by engineers of Gulf, Colorado A Santa Fe Railway for site 1.2 miles downstream. 

Remarks.- Records good. No diversions above statlor. 

Rating tables, water year 1947-48 (gage height, in feet, and discharge, in second-feet) 

Oct. 1 to Dec. 16 Dec. 17 to Sept. 30 

,.0 67 6.0 550 1.5 45 4.0 300 9.0 1,320 2.5 105 7.0 750 2.0 82 5.0 450 11.0 1,900 

3.0 150 9.0 1,200 2.5 126 6.0 615 12.5 7,500 4.0 255 10.0 1,450 3.0 118 1.0 810 ..0 386 11.2 1,850 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. -I Mar. Apr. ! May June July Aug. Sept. 

1 90 141 190 48? 1,3801 1,720 450 350 300 80 76 76 2 88 160 180 598 1,180 1,320 434 280 230 84 75 78 3 87 146 175 730 998 1,050 434 254 194 97 72 74 4 84 128 180 691 854 900 403 230 167 136 74 71 5 83 116 216 564 810 8101 366 218 156 151 77 68 

6 83 110 459 498 854 1,080 350 . 224 141 151 72 62 7 84 123 772 450 854 1,240 336 236 136 146 71 59 8 86 141 794 418 770 1,150 328 294 131 131 69 57 9 87 141 750 403 854 1,050 321 358 126 156 68 58 10 85 155 1,010 388 1,150 1,100 321 300 123 200 65 65 

11 85 160 1,270 388 1,400 1,180 314 248 120 230 64 64 12 85 150 1,370 434 1,630 1,240 294 261 117 184 62 59 13 85 180 1,,50 530 1,810 1,100 300 336 115 321 60 61 14 83 200 1,180 710 1,900 876 580 434 115 373 59 65 15 83 195 1,510 810 1.900 730 1,180 403 113 314 58 67 

16 81 231 1,850 770 1,900 672 1,430 300 113 218 56 68 17 81 418 2,080 634 1,780 653 1,520 242 108 178 54 68 18 80 351 2,040 634 1,540 634 1,180 212 104 224 53 65 19 84 261 1,660 653 1,210 615 672 194 101 162 51 64 20 85 255 1,130 691 924 564 466 184 97 172 51 63 

21 86 273 790 810 832 547 388 287 93 189 50 63 22 99 261 672 900 1,080 530 343 274 89 151 48 63 23 111 285 598 876 1,260 634 307 206 88 136 48 62 24 107 324 547 810 1,630 924 287 172 84 126 48 60 25 98 214 514. 810 2,080 998 280 156 82 114 48 57 

26 93 498 482 854 2,32A 854 314 151 80 104 49 56 27 91 348 450 998 2,460 691 434 156 80 95 53 58 28 89 279 434 1,260 2,460 581 530 167 81 89 58 56 29 88 233 418 1,320 2,150 564 530 372 82 84 64 55 30 92 206 418 1.490 514 482 564 82 80 67 53 31 100 418 1,520 - 466 - 434 - 77 68 

Per Runoff Month Maximum Minimum Mean square Secondfoot-days mile Inches Acre-feet

October 2,743 111 80 88.5 0.106 0.12 5,440 November 6,993 514 110 233 .278 .31 13,870 December 25,807 2,080 175 832 .994 1.15 51,190 

Calendar year 1947 335,906 11,600 80 920 1.10 14.91 666,300 

January 23,124 1,520 388 746 .891 1.03 45,870 February 41,970 2,460 770 1,447 1.73 1.86 83,250 March 26,987 1,720 466 871 1.04 1.20 53,530 April 15,574 1,520 280 519 .620 .69 30,890 May 8,497 564 151 274 .327 .38 16,850 June 3,648 300 80 122 .146 .16 7,240 July 4,953 373 77 160 .191 .22 9,820 August 1,888 77 48 60.9 .073 .08 3,740 September 1,895 78 53 63.2 .076 .08 3,760 

Water year 1947-48 164,079 2,460 48 448 .535 7.28 325,400 

Peak discharge (base, 3,900 sec.-ft.).- No peak above base. 
		

		

		

		

		

TRINITY RIVER BASIN 47 

Bridgeport Reservoir above Bridgeport, Tex. 

Location.- Staff gage, lat. 33°13'20", long. 97°50'10", at Bridgeport Dam on West Fork 

Trinity River, 2.0 miles west of Bridgeport, Wise County, and 5.8 miles upstream from 

Big Sandy Creek. Datum of gage is 0.06 foot above mean sea level, datum of 1929 

(levels by engineers of Tarrant County Water Control and Improvement District No. 1) 

Drainage area.- 978 square miles. 

Records available.- April 1932 to September 1948. 

Extremes.- Maximum contents observed during year, 157,600 acre-feet June 30, July 1 

(gage height, 810.8 feet); minimum observed, 110,600 acre-feet Sept. 27-30 (gage 

height, 803.6 feet). 

1932-48: Maximum contents observed, 407,600 acre-feet Apr. 29, 30, 1942 (gage 

height, 836.2 feet); minimum observed at monthly intervals since appreciable storage 

began, 2,200 acre-feet Dec. 31, 1933. 

Remarks.- Reservoir formed by a rolled-fill earthen-type dam, containing a concrete 

---EFFTrce spillway with three 20-foot bays, two of which are equipped with vertical lift 

gates, and the other left open and two emergency spillways of natural ground. Dam 

completed Dec. 15, 1931; storage began Apr. 1, 1932. Capacity, 291,000 acre-feet 

between gage heights 751.4 feet (bottom of three 48-inch outlet conduits) and 826.1 

feet (top of service spillway). Dead storage is negligible. Reservoir used for 

flood control and municipal supply for city of Fort Worth. 

Cooperation.- Capacity curve and records of daily gage heights furnished by Tarrant 

County Water Control and Improvement District No. 1. 

Monthly gage height and contents, water year October 1947 to September 1948 

Gair4M Contents 

(acre-feet) Change in contents during month 

(acre feet) 

Sept.30 

Oct. 31 805.5 

806.2 122,000 126,300 +4,300 Nov. 30 805.3 120,800 -5,500 Dec. 31 807.5 134,800 +14,000 

Calendar year 1947 - - -59,800 -- - - --- - - - -

Jan. 31 807.8 136,700 +1,900 Feb. 29 809.5 148,500 +11,800 Mar. 31 810.4 154,800 +6,300 Apr. 30 May 31 June 30 

810.3 

810.7 

810.8 

154,100 

156,900 

157,600 

-700 +2,800 +700 July 31 

Aug. 31 Sept.30 

809.2 

806.8 

803.6 

146,400 

130,200 

110,600 

-11,200 

-16,200 

-19,600 

Water year 1947-48 - - -11,400 

t Gage height at 7 a.m. 
48 TRINITY RIVER BASIN 

West Fork Trinity River near Boyd, Tex. 

Location.- Water-stage recorder, lat. 33°04'30", long. 97°32'20", at bridge on State Highway 114, 0.8 mile downstream from Deep Creek, 1.2 miles east of Boyd, Wise County, 1.5 

miles upstream from Little Blue Creek, and 2.1 miles upstream from Chicago, Rock Island 

& Pacific Railway bridge. Datum of gage is 655.1 feet above mean sea level, datum of 

1929. 

Drainage area.- 1,603 square miles. 

Records available.- January 1947 to September 1948. 

Extremes.- Maximum discharge during year, 2,270 second-feet Feb. 26 (gage height, 15.81 

feet); no flow Aug. 5-12. Maximum stage known, about 21.7 feet occurred sometime during period Apr. 20-30, 

1942, from information by local resident. 

Remarks.- Records good. Flow regulated by Bridgeport Reservoir, 23 miles upstream. No 

diversion above station. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

6.4 7.9 732 0.7 271 

,-.. -cs!.-°'0 

22222 22222 2`,12 ,. .° ',?.-'4 .:1.2°' "'

02:r.2—*4°;-: 

1 73 2.3 2.7 2,150 15 166 

2 244 1.9 2.7 1,09017 131 6.0 7.1 752 .4 271

3 257 1.6 3.7 152 19 210 5.8 6.4 734 .2 271

4 264 1.2 17 a56 22 203 182 5.8 734 .2 264

5 167 1.1 28 a35 21 111 65 5.5 734 .1 264

6 17 .9 20 25 21 78 21 5.0 734 0 264

7 6.6 .8 1,150 21 20 64 14 4.7 228 0 264

8 8.3 1.0 1,920 19 20 55 8.8 4.4 93 0 87

9 5.1 1.1 795 17 19 48 6.7 4.1 40 0 14

10 3.8 1.0 92 16 19 45 31 14 21 0 9.0

11 3.7 .9 36 15 18 40 79 30 12 0 5.8

12 2.8 .7 20 14 20 34 85 a9.6 10 467 4.4 71 a4.2 19 664 3.6 

31 2.7 10 664 3.0 17 1.7 142 350 2.5 

13 2.4 .9 13 13 25 34 14 2.0 374 10 13 32 37 

15 1.9 681 646 12 38 38 

16 1.9 716 1,390 11 36 37 10 1.2 292 278 2.0

17 1.9 716 427 10 26 33 8.2 .9 292 278 1.8

18 2.2 292 74 11 22 31 6.2 1.5 299 278 476

19 3.3 29 37 11 19 31 4.8 1.1 299 278 647

20 2.2 12 24 11 17 36 6.0 429 292 271 647

21 1.8 7.7 17 12 19 36 4.6 681 292 271 647

22 1.5 6.6 13 14 44 34 3.4 698 192 271 647

23 1.4 9.4 11 13 50 34 3.1 698 17 271 647

24 1.2 9.0 9.7 12 29 30 2.8 438 5.4 271 647

25 1.4 6.9 8.8 12 1,380 28 76 102 3.3 271 647

26 90 6.2 7.9 12 2,200 26 86 273 2.5 285 647

27 147 4.7 7.1 11 1,830 24 56 310 2.0 313 647 28 46 3.7 6.7 10 697 22 45 469 1.9 271 173 29 9.7 3.3 6.6 13 379 20 14

30 4.7 2.8 6.4 12 20 31 3.1 - 1,120 12 - 20 

27 252 1.3 299 15 362 .9 271 6.4

10 .9 271 -

Month Secondfoot-days Maximum Minimum Mean Runoff in 

acre-feet 

October 1,377.9 264 1.2 44.4 2,730 

November 2,895.7 716 .7 96.5 5,740 December 7,922.3 1,920 2.7 256 15,710 _ Calendar year - - - - -

January 

February 

March 

3,835 

7,074 

1,756 

2,150 

2,200 210 

10 

15 

20 

124 

244 

56.6 

7,610 

14,030 

3,480 

April 

May 

June 

462.1 

993.8 4,829.8 

25 

182 

698 

7.5 

2.8 

.9 

15.4 

32.1 

161 

917 1,970 

9,580 

July 

August 

September 

6,988.2 

6,594.6 

8,494.5 

752 

664 

647 

.9 

0 

1.8 

225 

213 

283 

13,860 

13,800 

16,850 

Water year1947-48 5,3223.9 2,200 0 146 105,600 

Peak discharge (base, 2,000 sec.-ft.).- Dec. 8 (2:30 p.m.) 2,010 sec.-ft.; Jan. 1 (1 p.m.) 2,230 sec.-ft.; Feb. 26 (1 p.m.) 2,270 sec.-ft. a No gage-height record; discharge computed on basis of estimated gage-height record. 
		

		

---- - - --- 

TRINITY RIVER BASIN 49 

Eagle Mountain Reservoir above Fort Worth, Tex. 

Location.- Staff gage, lat. 32°52'35", long. 97°28'15", at Eagle Mountain Dam on West 

Fork Trinity River, 3.0 miles downstream from Ash Creek, 4.1 miles downstream from 

Walnut Creek, and 14.6 miles northwest of Fort Worth, Tarrant County. Datum of gage 

is at mean sea level, datum of 1929. 

Drainage area.- 1,821 square mileg. 

Records available.- February 1934 to September 1948. 

Extremes.- Maximum contents observed during year, 227,200 acre-feet Feb. 28 (elevation, 

650.5 feet); minimum observed, 176,100 acre-feet Sept. 1-6, 11-20 (elevation, 644.9 

feet). 

1934-48: Maximum contents observed, 333,500 acre-feet Apr. 26, 1942 (elevation, 

659.9 feet); minimum observed at monthly Lntervals since appreciable storage began, 

9,320 acre-feet June 30, 1934. 

Remarks.- Reservoir formed by a composite rolled-fill and hydraulic-fill earthen-type 

---T577-containing a concrete service spillway with four 25-foot bays, three of which 

are equipped with vertical lift gates. In addition there is an emergency spillway of 

natural ground. Dam completed Oct. 24, 1932, and storage began Feb. 28, 1934. Capacity, 214,000 acre-feet between elevations 599.9 feet (bottom of four 48-inch outlet 

conduits) and 649.1 feet (top of service spillway). Dead storage is negligible. 

Reservoir used to maintain level of Lake Worth from which city of Fort Worth derives 

its municipal supply. 

Cooperation.- Capacity curves and records of daily elevations furnished by Tarrant County 

Water Control and Improvement District No. 1. 

Monthly gage height and contents, water year October 1947 to September 1948 

Change in contents Elevation Contents during month (feet)t (acre-feet) (acre-feet) 

Sept.30 648.4 207.600 Oct. 31 646.6 191,400 -16,000 Nov. 30 647.0 195,000 +3,600 Dec. 31 648.1 204,900 +9,900 

Calendar year 1947 - - -2,700 -

Jan. 31 648.1 204,900 0 Feb. 29 650.3 225,400 +20,500 Mar. 31 648.4 207,600 -17,800 Apr. 30 647.8 202,200 -5,400 May 31 647.7 201,300 -900 June 30 646.6 191,400 -9.900 July 31 646.0 186,000 -5,400 Aug. 31 645.0 177,000 -9.000 Sept.30 645.1 177,900 +900 

Water year 1947-48 - - -29,700 

t Elevation at 8 a.m. 
50 TRINITY RIVER BASIN 

West Fork Trinity River at Fort Worth, Tex. 

Location.- Water-stage recorder above Texas Electric Service Co.'s concrete dam, lat. 

32'46', long. 97°20', in old pump house of Texas Electric Service Co.'s plant in Fort 

Worth, Tarrant County, 150 feet upstream from Paddodk viaduct and a quarter of a mile 

downstream from Clear Fork. Datum of gage is 519.2 feet above mean sea level (Texas 

Reclamation Department bench mark based on Coast & Geodetic Survey datum). 

Drainage area.- 2,501 square miles. 

Records available.- Qctober 1920 to September 1948. U. S. Weather Bureau has collected 

gage-height records in this vicinity since 1910. 

Average discharge.- 28 years, 469 second-feet. 

hxtremes.- Maximum discharge during year, 14,500 second-feet Feb. 25 (gage height, 15.27 

Veet); minimum, 21 second-feet Nov. 6 (gage height, 1.13 feet). 

1920-48: Maximum discharge, 85,000 second-feet Apr. 25, 1922 (gage height. 23.95 

feet), by slope-area method, data furnished by city engineer of Fort Worth; no flow at 

times. 

Remarks.- Records good. Flow partly regulated by Bridgeport, Eagle Mountain, and Lake 

Worth Reservoirs (combined capacity, 527,000 acre-feet). Considerable diversion above 

station for municipal supply of city of Fort Worth. Several small diversions above 

Fort Worth. Rating table, water year 1947-48 (gage height, in feet, and discharge, in second-feet) (Shifting-control method used Oct. 1-7, Feb. 25. 26, Apr. 13-24, Aug. 1-26) 

1.1 16 2.0 356 4.0 2,160 1.2 37 2.2 483 4.5 2,830 1.3 66 2.4 626 5.0 3,570 1.4 98 2.6 780 5.0 5,170 1.6 166 3.0 1,100 7.2 6,840 1.8 250 3.5 1,550 

Discharge, in second-feet, water year October 1947 to September 1949 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 37 40 45 2,240 128 3,150 142 53 57 82 37 159 

2 35 42 45 396 128 2,420 134 63 57 60 105 145 3 35 35 76 502 128 1,900 134 63 54 337 251 142 4 35 32 163 916 128 1,120 131 60 48 293 181 134 5 37 32 88 1,140 131 2,100 131 66 51 568 82 131 

6 37 32 72 988 124 1,500 134 57 51 727 37 121 7 54 42 630 772 131 1,140 131 54 54 596 30 98 8 185 35 517 718 142 1,060 128 54 48 392 30 66 9 416 35 118 718 134 1,000 124 54 51 195 30 72 10 518 32 82 687 131 1,010 114 84 48 174 28 45 

11 538 32 69 562 134 924 111 608 48 95 28 45 12 567 35 60 250 134 812 108 304 45 66 28 45 13 604 35 57 178 134 836 98 118 42 51 37 45 14 589 146 61 128 145 710 98 88 45 42 105 45 15 574 76 557 111 148 490 98 72 40 42 118 45 

16 626 66 532 108 142 368 98 66 147 40 111 45 

17 772 51 156 101 128 270 92 63 295 37 98 48 

18 664 60 114 92 121 228 88 146 189 37 101 51 

19 422 45 105 105 121 241 79 374 82 90 101 54 

20 270 51 208 118 124 205 79 219 48 248 101 48 

21 214 54 418 128 114 218 69 101 40 362 101 45 22 145 114 552 121 114 518 76 82 37 424 95 48 23 82 66 439 108 114 246 72 69 151 269 95 48 24 57 51 224 101 124 201 72 57 300 117 95 48 25 88 51 145 98 6,840 186 145 188 260 57 95 54 

26 224 51 108 98 6,090 186 118 322 541 42 188 151 27 209 48 95 101 2,760 170 95 214 440 42 322 302 28 112 45 88 92 2,220 156 72 128 381 35 232 280 29 63 45 82 101 2,160 152 60 98 439 35 193 143 30 45 45 79 111 166 63 95 133 35 208 79 31 40 742 124 - 159 69 35 197 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 1 i I I WOI N: N : .. 

02 g: 0 : Nin 

1,NJr m i 

1 

8,294 35 268 16,450 32 50.8 3,020 45 217 13,340 

October 

November 1,524 December 6,727

Calendar year 1947 101,596 32 278 201,500 - January 12,013 92 388 23,830 23,172 114 799 45,960 152 769 47,290 February 

March 23,842

April 3,094 60 103 6,140 

May 4,099 54 132 8,130 June 4,222 37 141 8,370 July 5,625 35 181 28 11,160 August 3,460 112 6,860 September 2,782 45 92.7 5,520 

Water year 1947-48 98,854 6,840 28 270 196,100 

Peak discharge (base, 4,000 sec.-ft.).- Feb. 25 (4 p.m.) 14,500 sec.-ft.; Mar. 1 (7:30 p.m.) 6,180 sec.-ft. 
		

51 TRINITY RIVER BASIN 

West Fork Trinity River at Grand Prairie, Tex. 

Location.- Water-sY,ge recorder, lat. 32°46., long. 96°59., 440 feet downstream from bridge 

on rard.Fralr' -SnwArs,Irving highway. 1 mile northeast of Grand Prairie, Dallas 

County, and 6 • :pstream from Mountain Creek. Datum of gage is 412.98 feet above 

mean sea level, of 1929 

Drainage area.- 2,956 square miles. 

Records available.- March 1925 to September 1948. 

Average discharge.- 23 years, 618 second-feet. 

Extremes.- Maximum discharge during year, 11,000 second-feet Feb. 27 (gage height, 22.91 

ieet); minimum, 68 second-feet Oct. 6, 7, Sept 25, 26.. 1925-48: Maximum discharge, 29,500 second-feet Mar. 31, 1945 (gage height, 26.05 

feet), from rating curve extended above 17,000 second-feet; minimum observed, 3.2 second-feet June 6, 1925. 

Maximum stage known, 29 feet in April 1922. 

Remarks.- Records good except those for period of no gage-height record, which are poor. 

---7T57-partly regulated by Bridgeport. Eagle Mountain, and Lake Worth Reservoirs (comb:ned capacity, 527,000 acre-feet). City of Fort Worth diverts considerable water for 

municipal supply. Several small diversions above Fort Worth. 

Re7Isions (water year).- W 628: 1925. 

Rating table, water year 1947-48 (gage height, in feet, and discharge, in second-feet) (Shifting-control method used Oct. 1 to Dec. 4, Mar. 2? to May 19) 

1.8 64 2.5 162 6.0 1,090 13.0 3,480 

2.0 83 3.0 276 1,680 15.-, 4,47 

2.2 108 4.0 535 10.0 2,320 19.0 

Discharge, in second-feet, water year October 1947 to September 1948 

Dayl Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

254 2, 710 274 134 80 234 OOOGG0 065

0F..0.1, 71ET," r-4 •-• •-• In PO CO 

EC IC aldri OS 03lC 01OICS <1 01 

11 8.: 97 83 2,660 243

2 80 87 79 2,270 262 4,91C 247 130 164 79 182

3 : 79 81 85 658 269 2,920 242 123 412 107 164

4 71 77 195 672 266 2,120 238 123 532 ?71 160 I 5 77 80 482 1,040 264 2,180 235 123 426 233 154

73 79 242 1,240 264 2,390 240 122 750 140 141 773 97 138 746 82 127 

6 

7 72 79 826 1,040 269 1,740 242 122 

8 8, 78 1.60 868 30i 1,380 235 115

9 146 81 676 784 295 1,290 223 111 472 '6 108

10 389 75 266 784 266 1,240 216 113 394 76 101

11 494 71 189 714 269 1,210 211 510 533 78 90 526 74 158 481 278 1,090 200 1,270 183 79 76 12 

13 520 73 143 345 281 1,010 195 452 147 76 74

14 562 195 138 276 286 1,040 184 234 127 76 75

15 562 514 1,790 216 308 896 180 182 113 115 77

16 548 180 2,840 191 288 700 182 160 104 139 78

17 ..,89 " 116 812 180 574 ' 562 182 141 101 145 77

18 728 101 363 174 254 454 178 134 95 134 77 

19 672 123 269 16? 238 428 162 917 88 134 77 20 454 98 235 189 233 428 156 648 110 134 73 

21 320 113 302 221 218 389 158 345 283 132 74 22 262 195 520 242 218 1,000 152 204 402 129 75 

23 200 206 630 218 209 938 151 170 454 122 75 

24 138 150 535 191 211 454 149 145 319 125 75 

179 113 73 

11? 132 72 100 182 106 

25 108 105 330 176 2,220 376 168 291 

26 157 98 238 170 8,500 348 289 a412 27 336 93 197 178 10,400 335 216 a179 28 

29 312 

180 86 

82 176 

160 184 180 6,430 2,880 300 281 184 158 a128 alll 98 88 325 

252 294 

203 30 193 84 158 189 286 143 a107 84 204 178 31 140 341 ?18 - 286 a108 84 21? 

Month Secondfoot-days Maximum Minimum Mean Runoff in 

acre-feet 

October 

November 

December 

9,153 

3,571 

15,618 

728 

514 2,840 

72 

71 

79 -

290 

119 

504 

16,150 

7,080 

30,980 _ 

Calendar year 1947 156,653 6,700 71 429 310,700 

January 

February 

March 

April 

May 

June 

July 

August 

September 

17,111 

36,704 

35,691 

5,990 

8,064 

7,971 

8,710 

4,278 

3,605 

2,660 

10,400 

4,910 289 1,270 

1,430 773 

325 

298 

162 

209 

281 

143 

107 

86 

84 

76 

72 

552 1,266 

1,151 200 

260 

266 

281 

138 

120 

33,940 

72,800 

70,790 

11,880 

15,990 

15,810 

17,280 

8,490 

7,150 

Water year 1947-48 . 156,466 10,400 71 428 310 300 

a.m. 11,000 sec.-.t.: Mar. 2 p.m.) 

5,300 sec.-ft. Peak discharge (base, 5,000 sec.-ft.).- Feb. 27 

a No gage-height record; discharge computed on basis of recorded range in stage, weather records, 

and records for station at Fort Worth. 
52 TRINITY RIVER BASIN 

Trinity River at Dallas, Tex. 

Location.- Water-stage recorder, lat. 32°47', long. 96°48', at Commerce Street viaduct 

in Dallas, Dallas County, 5., miles downstream from confluence of West and Elm Forks. 

Datum of gage is 368.14 feet above mean sea level, datum of 1929. 

Drainage area.- 6,001 square miles. 

Records available.- July 1903 to July 1930, October 1932 to September 1948 (January 1907 

to September 1920, monthly records only, in Water-Supply Paper 850). October 1898 to 

December 1899 (gage heights only) at site 2 miles upstream. July 1930 to September 

1932 at site 6 miles downstream. U. S. Weather Bureau has collected gage-height 

records in this vicinity since 1903. 

Average discharge.- 45 years (1903-43), 1,577 second-feet. 

Rxtremes.- Maximum discharge during year, 46,300 second-feet Feb. 27 (gage height, 40.50 

feet); minimum, 170 second-feet Nov. 11 (gage height, 12.38 feet). 

1903-48: Maximum discharge, 184,000 second-feet May 25, 1908 (gage height, 52.6 

feet), from rating curve extended above 109,000 second-feet; minimum observed for 

periods 1903-6, 1920-48, 6.8 second-feet Sept. 11, 1924. 

Remarks.- Records good except those for periods of no recorder record and those for 

per ods of backwater from return of overbank storage, which are fair. Flow partly 

regulated by Bridgeport, Eagle Mountain, Lake Worth, Mountain Creek, and Lake Dallas 

Reservoirs (combined capacity, 757,000 acre-feet). Cities of Fort Worth and Dallas 

divert water for municipal supply. During the current year city of Dallas diverted 

59,000 acre-feet. Sewage effluent from Dallas enters river below station. Several 

small diversions on West Fork above Fort Worth. 

Revisions (water years).- W 850: 1903-6 (monthly and annual means). 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. MM agH FMV1 

1 360 282 312 8,420 535 18,700 570 2 351 282 262 11,800 880 14,900 535 3 363 262 289 5,680 1,010 10,200 465 4 345 5 357 226 800 1,800 700 6,610 396 226 845 1,260 991 5,840 396 

845 417 552 760 408 507 2,380 414 482 2,850 535 465 1,160 588 482 

6 354 224 577 1,310 740 5,720 390 1,200 482 465 7 306 233 3,950 1,140 760 5,540 405 1,370 435 435 8 726 189 12,500 1,120 822 6,300 393 1,210 417 429 9 375 178 5,010 1,020 822 4,400 375 1,570 402 450 10 500 172 1,780 1,090 700 3,700 411 2,090 387 450 

11 605 170 628 1,070 1,050 2,800 432 1,940 393 429 12 640 193 435 822 1,110 1,860 393 624 396 405 13 660 242 381 680 740 1,760 375 535 405 390 14 680 465 467 570 760 1,360 354 660 390 387 15 680 570 5,520 535 890 1,210 348 588 399 393 

16 680 535 13,300 482 1,000 1,160 339 500 450 384 17 680 360 8,280 450 800 935 297 450 450 384 18 800 252 3,480 450 680 922 291 450 435 396 19 780 224 1,400 915 605 922 288 450 420 390 20 622 235 720 553 570 780 309 435 435 384 

21 465 255 622 518 552 780 306 22 399 744 780 535 535 2,920 297 570 450 375 700 450 378 760 450 378 700 435 378 570 450 387 

482 482 393 939 482 396 1,360 640 552 759 605 588 426 535 482 427 518 

23 363 720 912 518 981 24 303 450 845 482 640 1,980 233 997 226 25 265 387 640 465 3,700 800 330 

26 360 321 552 758 16,200 720 402 27 500 288 465 465 36,100 690 345 28 518 275 450 29 384 275 435 450 41,100 640 321 450 27,600 622 297 30 39C 318 414 450 - 605 242 31 369 - 1,900 482 - 588 

Month Secondfoot-days Maximum Minimum Mean Runoff in 

acre-feet 

October 

November 

December 

15,180 

9,562 

68,951 

8,0 

744 13,300 

265 

170 

262 

490 

319 2,224 

30,110 

18,970 

136,800 

Calendar year 1947 414,294 18,500 170 - 1,135 821,800 

January 

February 

March 

April 

May 

June 

July

August 

September 

46,740 

143,573 

106,781 

10,7,11 

41,115 

28,983 

29,766 

14,155 

12,959 

11,800 

41,100 

18,700 570 7,680 

9,200 

2,860 640 

588 

450 

535 

588 

226 

240 

258 

423 

387 

375 

1,508 

4,951 

3,445 359 1,326 966 

960 

457 

432 

92,710 

284,800 

211,800 

21,340 

81,550 

57,490 

59,040 

28,080 

25,700 

Water year 1947-48 528,526 41,100 170 1,444 1,048,000 

, about 13,800 sec.-,.t.; Jan. 2 (3:30 p.m.) 12,200 sec.-ft.; Feb. 27 (11 p.m.) 46,300 sec.-ft. Note.- No recorder record Nov. 8 to Dec. 1, Dec. 11-16, Apr. 23 to May 19 and May 24 to July 1; dlial-Fge computed from graph based on once-daily readings of wire-weight gage furnished by U. S. Weather Bureau. Stage-discharge relation affected by return flow from overbank storage Dec. 8-10, 

16-19, Jan. 3-9, Feb. 27 to Mar. 17, Mar. 23, 24, May 13-16, 29-31, June 30, July 4, 5; discharge 

computed on basis of loop curves. 

Peak discharge base, 11,000 sec.-ft.).- Dec. 8 (4 p.m.) 14,000 sec -ft.; Dec. 16 (time unknown) 
		

- - - 

TRINITY RIVER BASIN 53 

Trinity River near Rosser, Tex. 

Location.- Water-stage recorder, lat. 32'25'40", long. 96'27'50", at bridge on State 

Highway 34, 1.4 miles downstream from Texas & New Orleans Railroad bridge, 1.9 miles 

downstream from East Fork, and 2.5 miles south of Rosser, Kaufman' County. Datum of 

gage is 302.6 feet above mean sea level, datum of 1929. 

Drainage area.- 8,057 square miles. 

Records available.- November 1938 to September 1948. July 1924 to September 1925 

(October 1924 to September 1925, gage heights only) at site 1.7 miles upstream. 

Extremes.- Maximum discharge during year, 33,700 second-feet Mar. 2 (gage height, 34.78 

feet); minimum, 289 second-feet Nov. 13 (gage height, 5.70 feet). 

1924, 1938-48: Maximum discharge not determined, but occurred Apr. 23 or 24, 1942, 

following numerous breaks in levee system on both banks; maximum gage height, 41.55 

feet Apr. 22, 1942, lust prior to levee breaks; minimum discharge, 34 second-feet 

Sept. 8-11, 1924. 

Flood of May 1908 reached a stage of about 33.0 feet, present site and datum, 

from information by Corps of Engineers (discharge believed to have been approximately 

the same as that of Apr. 23 or 14, 1942). 

Remarks.- Records good. Flow partly regulated by reservoirs above Dallas. Levee system 

eructed in 1916. Cities of Fort Worth and Dallas divert considerable water for 

municipal supply. Several small diversions cn West Fork above Fort Worth. 

Discharge, in second-feet, water year October 1947 to September 1948 

bay Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 449 536 555 8,380 1,200 29,900 1,250 518 2,590 5,100 536 594 2 449 555 555 9,720 1,620 33,300 1,230 483 992 2,440 500 614 3 433 518 536 10,500 f2,600 g31,600 1,150 449 866 1,740 483 574 4 449 401 819 11,600 f2,780 a27,800 1,040 483 818 3,140 483 536 5 433 345 1,620 11,100 2,520 a23,100 940 555 f700 4,060 594 536 

6 433 321 1,770 9,000 2,820 a19,000 940 1,360 f594 2,630 656 538 7 433 1,150 3,720 7,630 2,710 a15,100 940 1,280 f536 1,970 574 536 8 417 734 11,000 5,960 3,060 a12,400 940 1,150 500 2,280 500 518 9 786 361 11,600 4,290 3,100 a10,600 915 992 622 2,310 466 518 10 650 321 11,600 2,980 2,980 8,750 915 818 2,470 2,520 466 536 

11 614 329 10,000 2,200 2,820 7,060 915 3,470 2,110 2,710 433 500 12 746 305 5,660 1,970 3,140 5,720 940 10,400 915 2,460 433 500 13 770 297 3,610 1,680 3,100 4,390 2,310 10,100 700 f1,170 449 466 14 794 663 3,310 1,420 2,780 3,740 1,830 9,630 614 f818 466 449 15 818 2,380 5,100 1,250 2,340 2,860 1,070 10,603 574 890 433 449 

16 818 1,500 10,500 1,170 2,340 2,420 890 12,000 536 842 433 449 17 818 966 10,900 1,120 2,380 2,140 890 10,800 536 723 500 449 18 794 746 11,400 1,040 2,140 1,900 746 7,880 536 678 518 433 19 915 700 12,100 992 1,940 1,710 614 4,520 678 594 500 449 20 915 536 11,300 1,360 1,740 1,620 594 2,620 746 555 483 433 

21 746 555 8,580 1,870 1,530 1,560 594 1,750 594 518 500 433 22 536 1,740 6,860 1,710 1,420 1,960 574 1,100 536 514 500 433 23 466 2,170 5,380 1,470 1,340 1,010 574 794 518 794 500 433 24 417 1,650 4,240 1,310 1,620 '3,920 574 704 536 842 500 433 25 353 1,310 3,060 1,120 1,530 2,940 603 614 842 794 500 433 

26 345 1,150 2,030 1,040 4,180 2,670 915 979 915 614 518 433 27 614 1,070 1,530 1,250 7,350 2,600 842 2,270 2,160 555 555 433 28 635 890 1,310 1,150 9,350 2,560 746 2,900 2,400 1,030 555 449 29 656 678 1,200 1,020 16,300 2,000 656 3,560 4,700 1,560 700 374 30 1,600 594 1,120 966 1,420 594 4,340 6,400 1,180 700 700 31 694 - 1,950 992 - 1,280 - 4,210 635 635 

Second- Runoff in

foot-days acre-feet Month Maximum Minimum Mean 

October 19,996 1,600 345 645 39,660 November 25,471 2,380 297 849 50,520 December 164,915 12,100 536 5,320 327,100 

Calendar year 1947 752,890 12,600 297 2,063 1,493,000 - January 109,260 11,600 966 3,525 216,700 February 94,730 16,300 1,200 3,267 187,900 March 272,030 33,300 1,280 8,775 539,600 April 27,731 2,310 574 924 55,000 May 113,329 12,000 449 3,656 224,800 June 38,304 6,400 500 1,277 75,970 July 48,766 5,100 518 1,573 96,730 August 16,069 700 433 518 31,870 September 14,829 700 433 494 29,410 

Water year 1947-48 945,430 33,300 297 2,583 1,875,000 

Peak dischargejbase, 13,000 sec.-ft.).- Mar. 2 (11 a.m.) 33,700 sec.-ft. 

a No gageeig record; discharge computed on basis of recorded range In stage, weather records, ;h and records for nearby stations. f Co.sputed on basis of partly estimated gage-height record. 

6 Computed fro.n graph based on gage readings. 
54 TRINITY RIVER BASIN 

Trinity River near Oakwood, Tex. 

Location.- Water-stage recorder, lat. 31'39', long. 95'47', at bridge on U. S. Highways 

79 and 84, If miles upstream from International-Great Northern Railroad bridge and 

6 miles northeast of Oakwood, Leon County. Datum of gage is 175.03 feet above mean 

sea level, datum of 1929. 

Drainage area.- 12,840 square miles. 

Records available.- July 1932 to September 1948. January 1905 to July 1932 at•site 

11 miles downstream (January 1905 to September 1923, monthly and yearly records only, 

in Water-Supply Papers 850 and 878). U. S. Weather Bureau has collected gage-height 

records in this vicinity since 1904. 

Average discharge.- 25 years (1923-48), 5,364 second-feet. 

Extremes.- Maximum discharge during year, 50,100 second-feet May 17 (gage height, 44.32 

reet); minimum, 423 second-feet Sept. 28. 

1923-48: Maximum discharge, 153,000 second-feet Apr. 29, 1942 (gage height, 51.64 

feet); minimum observed for period 1924-48, 22 second-feet Aug. 18, 1934. 

Flood of June 4, 1908, reached a stage of about 52.2 feet, present site and datum, 

front information by U. S. Weather Bureau (discharge, about 164,000 second-feet). 

Remarks.- Records good. Flow partly regulated by reservoirs above Dallas. Records of 

chemical analyses and water temneratures for water year 1948 are given in Water-Supply 

Paper 1133. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

666 

625 

585 

545 

572 

980 1,420 

1,080 750 

708 

1,200 2,000 1,000 3,920 908 7,620 980 10,200 1,130 12,000 

2,970 

3,280 

3,810 

4,420 

5,550 

7,820 

10,300 

13,000 

13,100 

16,400 

2,550 

2,090 

1,910 

1,790 

1,700 

1,500 5,010 1,260 4,780 1,080 4,110 932 2,780 838 1,760 

3,730 

5,550 

6,320 

5,250 

3,560 

1,610 

1,360 908 

687 

625 

729 

816 

772 

708 

687 

509 

509 

509 

509 

509 

666 

585 

491 

491 1,080 

1,360 

2,240 

3,440 

4,600 

7,750 

12,700 

13,200 

13,100 

12,700 

12,100 

6,620 

7,100 

7,680 

9,240 

10,400 

18,300 

24,200 

34,800 

36,800 

34,800 

1,580 

1,500 

1,420 

1,160 

1,850 

908 1,340 3,200 1,160 1,150 4,730 2,470 1,000 5,110 2,750 908 3,690 2,090 860 2,890 

585 

565 

625 

687 

625 

666 

585 

545 

565 

585 

491 

729 

772 

666 

772 

1,260 980 

687 

565 

545 

10,700 

12,600 

14,000 

14,700 

15,200 

10,400 

6,980 

4,280 

2,080 

2,580 

11,200 

10,900 

9,880 

8,930 

8,090 

32,300 

29,200 

26,900 

23,000 

19,000 

1,640 

1,450 

1,700 

3,740 

5,910 

2,330 

8,920 

13,000 

15,500 

22,700 

794 2,970 1,140 3,280 2,250 3,650 1,970 3,810 1,280 2,790 

585 

545 

527 

509 

509 

585 

585 

565 

545 

527 

838 

860 

884 

884 

838 

509 1,070 

2,190 

2,090 

1,560 

13,800 

11,800 

11,900 

13,000 

14,100 

2,350 

2,250 

2,090 

2,060 

2,150 

7,300 

6,320 

5,110 

4,160 

3,650 

15,400 

10,500 

6,870 

4,450 

3,200 

7,420 

5,960 

3,360 

2,030 

1,560 

45,400 

47,700 

39,000 

32,900 

26,100 

932 1,730 794 1,230 750 1,150 687 1,080 666 932 

473 

455 

473 

491 

527 

545 

527 

509 

509 

491 

838 

932 

980 

860 

708 

1,180 

1,050 

1,200 

2,060 

3,280 

14,900 

15,600 

15,803 

15,400 

14,400 

2,150 

2,550 

3,860 

3,860 

4,070 

3,600 

3,280 

2,890 

2,650 

2,510 

2,550 

2,650 

3,120 

5,160 

6,440 

1,310 

1,150 

1,050 

1,030 

1,150 

21,500 

18,700 

15,200 

10,100 

4,740 

625 

687 

772 

708 

625 

860 

794 

729 

687 

729 

565 

565 

527 

509 

545 

455 

473 

491 

491 

491 

".(6.,`22,1 2`c?, I 

585 3,650 12,000 3,560 2,440 7,100 1,450 2,430 605 838 585 473 

491 3,600 7,800 3,480 2,610 6,800 1,790 1,880 645 908 625 455 

473 3,160 4,460 4,960 3,310 5,200 2,310 2,020 972 884 605 423 

473 2,120 2,860 5,500 5,600 3,940 2,410 3,850 1,790 772 585 439 

645 1,530 2,220 4,600 3,440 1,910 5,400 2,610 687 605 473 

794 1,970 3,520 - 3,120 - 5,500 1,080 645 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 21,006 473 678 41,660 November 42,537 491 1,418 84,370 December 263,818 908 8,510 523,300 

Calendar year 947 1,502,339 391 II I 

_.. 

January 179,870 

4'116._ _ Lt3222°9_ 

February 2,000 5,802 356,800 

March 

April 429,860 2,550 13,870 

165,500 2,440 5,707 328,300 

852,600 

May 359,858 

68,330 1,030 2,278 135,500 

June 838 11,610 713,800 45,000 605 1,500 89,260 July 75,620 687 2,439 150,000 August 

September 19,732 455 637 39,140 16,710 423 557 33,140 

Water year 1947-48 1,687,841 47,700 423 4,612 3,348,000 

Peak discharge (base, 17,000 sec.-ft.).- r. 9 (6 a.m.) 36,800 sec.-ft.; May 17 11 p.m. 50,100 

sec.-ft. 
		

"

66 TRINITY RIVER BASIN 

Trinity River near Midway, Tex. 

Location.- Wire-weight gage, lat. 31°04.40", long. 95°42.00", at bridge Cr. State Highway 

21, 5 miles northeast of Midway, Madison' County, and 8 miles downstream from Boggy 

Creek. Datum of gage is 117.6 feet above mean sea level, datum of 1929. 

Drainage area.- 14,390 square miles. 

Records available.- April 1939 to September 1948. 

Extremes.- Maximum discharge during year, 29,100 second-feet May 22 (gage height, 37.12 

reet); minimum observed, 430 second-feet Sept. 29. 

1939-48: Maximum discharge, 146,000 second-fees May 1, 1942 (gage height, 48.58 

feet); minimum observed, 100 second-feet Oct. 4, 1939. 

Maximum discharge known o:tcurred in May 1890 (gage height, about 45.0 feet, discharge 

not determined), from information by local residents. Flood of May 27, 1930, reached a 

stage of 46.7 feet, from floodmark (flow confined within levee system constructed in 

1916). Flood of June 9, 1908, reached a stage of 44.3 feet, from floodmarks and from 

Information by local residents. 

Remarks.- Records good. Gage read twice daily, oftener during high stages. Flow partly 

regu ated by reservoirs above Dallas. 

Discharge, in second-feet, water year October 194,to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June 1 July Aug. Sept. 

3,720 2,430 5,240 2,300 825

,r;icenpH888 8080+ p888 8822.7. :).2i3 a2 

"°324=2nm= 

"

--- " "

Secondfoot-days 

1 1,020 865 2,260 3,000 5,240 2 905 965 1,890 3,120 4,200 3,240 1,990 4,850 2,820 1,060

3 825 1,240 1,600 3,480 3,720 2,760 1,690 4,520 3,360 1,460 74`

4 785 1,420 1,500 6,060 4,080 2,430 1,460 4,200 5,570 1.140 805 5 745 1,140 1,740 8,050 4,520 2,210 1,320 3,420 5,710 845 745

6 705 945 1,890 8,800 5,110 2,100 1,420 0,170 5,180 725 688 7 705 925 2,260 10,200 6,060 

8 688 925 2,760 11,400 7,900 9 688 865 3,660 11,800 11,400 lo 670 825 4,460 11,700 12,300 

11 670 925 6,480 11,300 11,700 12 670 1,420 8,500 10,400 11,900 

1,990 1,740 1,790 4,850 635 652 1,940 1,840 1,550 4,460 618 635 2,180 1,840 1,280 4,330 618 618 3,360 1,790 805 4,020 670 618 

2,540 2,820 1,060 3,120 688 550 2,380 3,540 1,000 2,760 670 618 

13 652 1,500 10,100 8,880 12,100 3,120 7,280 965 3,000 618 582

14 865 1,320 511,900 5,850 11,600 3,660 10,400 1,630 3,360 582 600

15 905 1,060 13,400 4,080 10,400 

16 785 985 13,700 3,120 9,180 17 885 985 13,700 2,210 8,050 18 965 1,100 12,800 1,790 7,180 19 985 2,080 12,200 a2,260 6,130 20 965 2,650 11,300 2,760 5,180 

21 945 2,380 11,700 3,000 4,330 22 945 2,100 12,400 2,940 4,260 23 a1,000 1,790 13,200 3,000 4,260 24 1,020 1,640 13.300 3,840 3,780 25 1,000 1,980 513,500 4,200 3,360 

26 965 3,000 13,700 4,590 3,120 27 885 3,840 12,300 4,850 3,120 28 670 4,140 9,100 a4,980 3,300 29 618 3,960 6,200 a5,110 3,960 30 600 3,000 3,960 a5,240 31 670 - 3,120 5,370 

Month 

4,850 12,100 1,990 3,600 565 582 

6,200 14,100 1,600 3,240 550 565 7,040 16,900 1,140 2,160 535 565 6,760 20,400 925 a1,550 520 550 5,110 24,000 845 1,280 505 535 3,060 26,600 765 1,190 505 535 

2,210 28,300 670 1,100 535 505 1,840 29,000 688 965 550 490 1,600 29,000 670 885 600 475 1,500 28,000 725 825 618 505 a2,240 26,500 785 705 600 505 

3,660 22,000 785 670 582 505 3,840 15,200 670 705 a582 490 2,700 8,220 652 865 618 460 2,600 5,440 1,360 905 635 445 2,760 3,840 1,790 865 652 445 a4,590 - 785 635 -

Runoff Sr. Maximum Minimum Mean acre-feet 

October 25,401 1,020 600 819 50,380 November 51,970 4,140 825 1,732 103,100 December 250,580 13,700 1,500 8,083 497,000 _ - - Calendar year 1947 1,855,512 -

21,700 535 5,084 3,680,000 

January 177,380 11,800 1,790 5,722 351,800 February 191,440 12,300 3,120 6,601 379,700 March 438,040 27,600 4,330 14,130 868,800 April 95,600 7,040 1.500 3,187 189,600 May 355,750 29,000 1,320 11,480 705,600 June 50,470 5,240 652 1,682 100,100 July 77,135 5,710 670 2,488 153,000 August 20,941 1,460 505 676 41,540 September 17,335 805 445 578 34,380 

Water year 1947-48 1,752,042 29,000 445 4,787 3.475.000 . Peak discharge (base, 20,000 sec.-ft.).- Mar. 16 (10 a.m.)27,600 sec.-ft.; May 2? (6 p.m. 29, 

sec.-ft. a No gage-height record; discharge computed on basis of estimated gage heights. 

905771 0-50- 5 
" " " " 

56 TRINITY RIVER BASIN 

Trinity River at Riverside, Tex. 

Location.- Wire-weight gage, lat. 30°52,, long. 95°24., at bridge on State Highway 45, 

1,100 feet upstream from International-Great Northern Railroad bridge, 0.5 mile north 

of Riverside, Walker County, and three-quarters of a mile downstream from Harmon Creek. 

Datum of gage is 89.86 feet above mean sea level, datum of 1929. 

Drainage area.- 15,510 square miles. 

Records available.- January 1903 to December 1906, October 1923 to September 1948. U. S. 

weather Bureau as collected gage-height records in this vicinity since 1903. 

Average discharge.- 28 years (1903-6, 1923-48), 7,274 second-feet. 

Extremes.- Maximum discharge during year, 28,500 second-feet May 24 (gage height, 26.30 

reet); minimum observed, 511 second-feet Aug. 20, Sept. 30. 

1903-6, 1923-48: Maximum discharge, 121,000 second-feet May 5, 1942 (gage height, 

52.75 feet, from floodmark); minimum observed, 70 second-feet Aug. 20-26, Sept. 8-13, 

1925, Sept. 29 to Oct. 4, 1931. 

Flood of June 11, 1908, reached a stage of 50.1 feet, present site and datum (discharge, 100,000 second-feet). 

Remarks.- Records good. Gage read twice daily. Flow partly regulated by reservoirs 

above Dallas. 

Cooperation.- Gage-height record collected in cooperation with U. S. Weather Bureau. 

Revisions (water year).- W 828: 1935 (mean discharge). 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May 

nio-Vg" omco- =.

7rs Wm 

cppoci qaq r, _ Q NWO .W.NWO WOO

NNOWW-4 

888888 888888888

888888 88888 88888 

June r: ,w res, N.H ., .WNMO

"

W-Fs aM.July Aug. Sept. 

2,190 786 687 2,990 804 704 4,140 1,340 732 5,760 1,480 816 6,840 1,140 840 

6,120 870 792 4,680 709 774 3,870 626 744 4,950 616 714 

1 1,380 726 3,240 3,510 5,940 7,200 3 870 2 1,170 900 2,510 3,330 5,040 7,600 3 420 3 1,020 1,080 1,950 3,240 4,230 9,200 2 830 4 960 1,400 2,190 4,770 4,140 10,200 2 270 5 900 1,550 5,940 7,500 4,590 13,800 1,990 

6 840 1,240 5,440 9,500 5,220 15,500 1 790 7 822 1,050 4,500 10,903 6,300 15,500 1 670 8 780 990 4,320 11,900 10,300 16,400 1 520 9 768 960 5,760 12,600 18,500 17,700 1,670 10 768 900 7,020 12,800 17,900 19,500 4,400 

11 768 804 7,300 12,700 16,300 21,400 5 400 12 762 870 8,700 12,200 15,400 23,000 6 930 13 750 1,520 10,400 11,100 14,800 24,200 7 200 14 774 1,520 11,900 8,600 14,400 25,000 9 200 15 960 1,300 14,000 5,850 al2,800 25,600 6,570 

16 990 1,050 16,000 4,140 11,100 26,000 6 660 17 930 1,240 17,000 3,420 9,600 26,200 7 700 18 1,020 3,330 15,600 3,150 8,500 26,200 7 700 19 1,080 3,070 13,800 2,990 7,400 24,700 6 480 20 1,110 3,330 12,800 2,990 6,300 20,600 4,500 

21 1,110 2,910 12,700 3,150 6,520 11,900 2 750 22 

23 1,080 

1,050 2,830 

2,910 13,400 14,100 3,240 

3,240 7,400 

6,210 7,300 

7,200 1 830 

1 400 24 1,080 2,430 14,800 3,420 5,490 6,480 1 140 25 1,170 2,110 15,200 4,410 4,410 5,940 3,200 

26 1,140 2,590 15,400 5,040 3,780 6,120 6 300 27 

28 

1,020 900 3,870 

4,590 15,000 

13,600 5,580 

5,940 3,690 

4,410 6,750 

7,200 5 670 

4 140 29 804 4,680 10,200 5,940 4,680 6,840 3 070 30 768 4,140 6,930 6,210 - 5,760 2,670 31 714 - 4,230 6,570 4,590 -

"

"""

"

"

"

, 1.10 . 'HEH E‘a:s 88888 

5,400 604 687 

4,500 676 682 3,600 698 687 3,240 670 692 3,600 616 687 3,870 599 687 

4,050 588 682 3,240 560 660 2,270 544 643 1,550 538 638 1,300 511 632 

1,200 528 604 1,080 538 594 960 599 560 870 626 550 810 621 555 

756 601 550 732 638 555 780 632 550 870 682 538 900 714 511 840 709 -

.. 00 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 29,388 1,380 714 948 58,290 November 61,890 4,680 726 2,063 122,800 December 305,930 17,000 1,950 9,869 606,800 

Calendar year 1947 2,286,749 38,300 555 6,265 4,536,000 

January 199,930 12,800 2,990 6,449 396,600 February 245,350 18,500 3,690 8,460 486,600 March 451,580 26,200 4,590 14,570 895,700 April 125,940 9,200 1,140 4,198 249,800 May 381,980 28,500 1,200 12,320 757,600 June 63,752 6,390 792 2,125 126,500 July 87,958 6,840 732 2,837 174,500 August 21,866 1,480 511 705 43,370 September 19,747 840 511 658 39,170 

Water year 1947-48 1,995,311 28,500 511 5,452 3,958,000 

a No gage-height record; discharge computed on basis of estimated gage height. 
TRINITY RIVER BASIN 57 

Trinity River at Romayor, Tex. 

Location.- Water-stage recorder, lat. 30°25.30", long. 94°51.05", at county highway bridge 

1.9 miles south of Romayor, Liberty County, 2.0 miles downstream from Gulf, Colorado & 

Santa Fe Railway bridge, and 4} miles downstream from Big Creek. Datum of gage is 

35.92 feet above mean sea level, datum of 1929. 

Drainage area.- 17,200 square miles. 

Records available.- October 1943 to September 1948. May 1924 to Septe,nber 1943 at site 

2.0 miles upstream. 

Average discharge.- 24 years (1924-48), 8,143 second-feet. 

Extremes.- Maximum discharge during year, 28,500 second-feet May 26 (gage height, 20.83 

feet); minimum, 595 second-feet Sept. 29. 

1924-48: Maximum discharge, 111,000 second-feet May 9, 1942 (gage height, 35.8 

feet, from floodmarks, present site and datum); minimum observed. 132 second-feet 

Aug. 21, 22, 1925. 

Remarks.- Records good. Flow partly regulated by reservoirs above Dallas. Records of 

chemical analyses for water year 1948 are given in Water-Supply Paper 1133. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. r I -:::§::-.:-:- :- :-:-.:- -§ §§§§ ppli p iE i 00000

785 3,920 5,710 7,360 6,440 6,260 4,200 6,610 1,250 1,000 765 

745 3,440 4,580 7,100 9,420 5,490 4,010 6,610 1,700 975 765 

745 2,630 4,390 6,260 9,140 5,070 3,820 6,610 2,380 900 745 

852 2,460 4,010 5,490 9,860 4,680 3,350 6,260 3,350 925 745 

1,020 3,500 4,300 5,070 11,000 4,200 f2,810 5,820 4,640 1,310 765 

1,280 6,260 6,400 5,170 15,200 3,820 f2,630 5,380 5,710 1,400 808 1,370 6,730 8,720 5,600 18,100 3,540 f2,720 4,580 5,710 1,160 852 

1,220 5,170 10,300 6,490 17,500 3,440 a2,380 3,720 4,680 950 830 

1,080 4,680 11,600 15,600 18,100 3,260 f2,720 2,990 3,820 852 808 

1,050 5,820 12,500 24,300 19,500 3,260 2,810 a2,540 4,230 785 808 

1,050 7,230 12,800 23,600 20,900 3,900 f2,810 a2,300 5,270 765 808 

975 7,230 13,000 21,300 22,400 6,150 3,780 a2,140 4,770 745 765 

900 8,160 12,700 20,300 23,600 8,440 5,600 a1,910 3,920 765 745 

1,000 9,560 11,800 19,100 24,900 10,900 7,100 a1,630 3,440 785 745 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 1,400 11,600 9,700 17,500 25,700 14,300 9,700 1,470 3,350 765 745 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

1,530 14,400 7,100 15,400 26,400 11,600 12,300 1,560 3,630 745 745 

1,340 16,700 5,380 13,200 26,800 9,000 13,900 2,380 3,820 725 745 

1,250 17,100 4,580 11,300 27,200 9 000 16,100 2,380 3,630 705 745 

1,880 15,900 4,100 9,860 27,200 9 000 19,900 1,840 2,900 685 725 

3,440 14,300 4,010 8,720 26,200 8,160 22,600 1,470 2,140 685 705 

3,170 12,800 3,920 7,750 22,600 6 370 24,500 1,220 1,700 665 685 

3,170 12,500 3,920 10,300 15,900 4 740 26,000 1,110 1,470 648 685 

3,440 13,000 4,010 10,200 12,000 4 090 27,000 1,050 1,340 665 665 

3,440 13,700 3,920 8,580 10,800 6 260 27,700 1,000 1,190 665 665 

2,990 14,400 3,920 7,490 8,560 4,870 28,300 950 1,110 685 630 

2,380 15,200 4,480 6,260 8,160 8 780 28,500 925 1,050 705 612 

2,140 15,400 5,270 5,490 7,490 12 300 28,300 950 975 725 612 

2,720 15,200 6,260 5,270 7,880 9 860 27,000 975 925 725 612 29 3,630 13,700 7,100 5,600 8,300 7 100 22,200 975 900 725 612 30 4,010 11,200 7,100 - 8,300 5,130 14,200 975 900 745 612 31 7,910 6,970 - 7,360 8,320 950 745 -

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet I 1 Nw rONr '0. 1., 

W .-4M08r48 g 528 %855800801 r 6: 000

October 30,594 November 56,002 December 311,800 

765 987 60,680 

745 1,867 111,100 

2,460 10,060 618,400 

Calendar year 1947 2,665,417 700 7,303 5,287,000

- January 214,550 3,920 6,921 425,600 February 315,660 March 503,910 

5,070 10,880 626,100 

6,440 16,280 999,500 

3,260 6,766 402,600 

6,380 13,140 807,800 

925 2,678 159,300 

900 2,802 172,300 

648 817 50,230 

612 725 43,150 

April 202,970 

May 

June 407,260 

80,330 July 86,850 August 25,325 September 21,754 

Water year 1947-48 2,257,005 28,500 612 6,167 4,477,000 

Peak discharge base, 24,000 aec.-ft.).- Feb. 10 (6 p.m.)24,900 sec.-ft.; Mar. 19 (4 a m.) 27,400 sec.-ft.; May 26 1 a.m.) 28,500 sec.-ft. a No gage-heigh record; discharge computed on baals of weather records and records for station upstream. 

f Computed on basis of partly estimated gage-height record. 
- - 

- - 

53 TRINITY RIVER BASIN 

Trinity River at Liberty, Tex. 

Location.- Wire-weight gage, lat. 30°03'25", long. 94°49'05", at bridge on U. S. Highway 

90 in Liberty, Liberty County, 450 feet downstream from Texas & New Orleans Railroad 

bridge. Datum of gage is 2.22 feet below mean sea level, datum of 1929. 

Drainage area.- 17,500 square miles. 

Records available.- October 1938 to September 1940 (gage heights, discharge measurements, 

and some records of daily discharge), October 1940 to September 1948. U. S. Weather 

Bureau has collected gage-height records in this vicinity since 1903. 

Extremes.- Maximum discharge during year, 26,700 second-feet May 28 (gage height, 26.10 

ieet); minimum not determined (affected by tides); minimum gage height observed, 4.5 

feet Sept. 27. 

1938-48: Maximum discharge, 114,000 second-feet May 12, 1942 (gage height, 29.38 

feet); minimum discharge not determined (affected by tides); minimum gage height observed, 2.5 feet Nov. 4, 1939. 

A stage 28.6 feet was reached May 8-11, 1922, from observation by U. S. Weather Bureau at chain gage on railroad bridge upstream. 

Remarks'.- Records good. Gage read once daily. Discharge not computed below 10-foot gage 

height because tides affect stage-discharge relation. 

Cooperation.- Gage readings furnished by U. S. Weather Bureau. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 3,920 8,800 8,030 6,470 7,400 5,160 13,100 - 2 3,920 6,380 8,030 7,600 6,200 3.990 10,100 - 3 5,160 7,600 9,790 5,320 3,710 8,470 - 4 4,680 6,830 9,790 4,760 7,400 - 5 4,440 6,110 10,700 4,280 - 6,650 -

6 4,580 5,080 5,480 12,800 3,780 - 5,930 4,440 7 0,740 7,300 5,570 15,200 5,240 5,570 8 6,830 9,570 6,110 16,200 - - 4,520 5,840 9 5,750 11,200 8,890 16,700 - - 3,570 4,920 10 5,480 12,200 16,200 17,200 - 4,060 

11 6,650 12,800 19,700 18,000 - - - 4,280 12 7,700 13,100 20,100 18,900 3,920 - - 5,240 13 8,360 13,300 19,300 19,900 6,110 - - 4,840 14 9,680 13,000 18,400 21,200 8,360 5,480 - 4,06Q 15 11,100 12,200 16,900 22,200 10,700 7,300 - -

16 12,800 10,400 15,400 23,400 12,700 10,500 - - 17 14,700 7,920 14,400 24,200 10,900 12,500 - - 18 15,800 6,110 13,000 25,100 9,130 14,300 - 3,710 19 16,200 5,160 11,700 25,600 8,800 16,100 - 20 15,800 4,920 10,300 25,600 8,580 18,400 - -

21 14,700 4,760 9,240 25,100 7,810 20,100 - - 22 13,900 4,520 9,240 22,600 6,200 21,500 - - 23 13,600 4,440 11,300 18,600 4,600 23,000 - 24 13,900 4,440 11,200 15,800 3,990 23,400 - - 25 14,300 4,360 10,000 13,500 5,750 24,200 - -

26 14,800 4,520 9,130 11,200 5,930 25,600 - - 27 15,200 5.080 7,700 9,350 8,740 26,100 - 28 15,200 6,110 6,650 8,470 10,900 26,700 - - 29 15,100 7,200 6,200 8,470 9,130 25,600 - - 30 13,900 7,700 8,580 6,920 22,200 - - 31 11,100 7,920 - 8,360 17,400 - -

Second- Runoff in foot-days acre-feet Month Maximum Minimum mean 

October - - November - - - - December - 16,200 - -

Calendar year - -- - -

January 234,770 13,300 4,360 7,573 465,700 February 318,710 20,100 5,480 10,990 632,200 March 496,580 25,600 6,470 16,020 985,000 April - 12,700 - may - 26,700 - - - June 1-9 64,980 13,100 3,570 7,220 128,900 July - 5,840 - August _ _ - September - - - - -

water year - - -

Peak discharge (base, ?2,000 sec.-ft.).- Mar. 20 (7 a.m.) 25,600 sec.-ft.; May 28 (7 a.m.) 26,700 sec.-ft. 
59 TRINITY RIVER BASIN 

Big Sandy Creek near Bridgeport, Tex. 

Location.- Water-stage recorder, lat. 33°13', long. 97'41', at bridge on State Highway 

24, 1.9 miles upstream from Turkey Creek, 4.4 miles upstream from mouth, and 5 miles 

east of Bridgeport, Wise County. Datum of gage is 727.44 feet above mean sea level, 

datum of 1929. 

Drainage area.- 346 square miles. 

Records available.- October 1936 to September 1948. 

Average discharge.- 11 years (1937-48), 120 second-feet. 

Extremez.- 1946-47: Maximum discharge during water year, 5,300 second-feet Dec. 11 (gage 

height, 9.91 feet); no flow at times. 

1947-48: Maximum discharge during water year, 2,660 second-feet Dec. 7 (gage height, 

9.28 feet); no flow at times. 

1936-48: Maximum discharge, 53,000 second-feet June 10, 1941 (gage height, 15.69 

feet, from floodmark), from rating curve extended above 22,000 second-feet by logarithmic plotting; no flow at times. 

Remarks.- Records good. No diversion above station.. 

Discharge, in second-feet, 1946-48 

.)1 C,N01:C71 Dec. 11 (7:30 p.m.) 5,3 ft.; 10.876F aecf H4.:TaY 14 - (75aa7M)

1946-47 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 

2 

3 

4 

5 

0 

56 

786 1.670 831 

7.3 

7.2 

6.8 

6.8 

7.2 

16 

22 

22 

22 

22 

12 

11 

12 

12 

12 

12 

11 

11 

11 

12 

14 

14 

13 

14 

31 

1,096 139 

69 

46 

37 

37 

26 

20 

18 

15 

2.9 

2.3 

2.1 

1.6 

1.6 

6 218 ,

7 58 

8 24 916 

10 43 

7.6 

8.0 

8.1 

37 

170 

22 12 

22 12 26 12 23 11 2111 

12 

16 

21 

20 

18 

17 

12 

12 

12 

12 

29 

55 

214 

275 

186 

13 

12 

11 

11 

9.6 

1.0 

.5 

.2 

.1 

0 

0000 0000 

11 

12 

13 

14 

15 

13 2,460 9.8 2.690 8.8 926 8.1 113 8.1 66 

20 

20 

19 

18 

17 

12 

12 

12 

12 

12 

17 

18 

20 

16 

14 

13 

12 

30 

519 2,430 

70 

101 1,430 

1,16C 129 

8.8 

8.0 

6.9 

6.1 

6.0 

0 

0 

0 

0 

0 c

e 

16 

17 

18 

19 

20 

8.0 

7.7 

6.8 

0.7 

7.1 

50 

38 

30 

27 

26 

16 

14 

14 

17 

18 

12 

13 

12 

12 

14 

14 

14 

23 

198 

100 

1.780 260 

103 

72 

55 

82 

68 

54 

51 

220 

6.0 

5.7 

5.1 

4.6 

4.7 

0 

0 

0 

0 

0 

,000!.4

10 

21 

22 

23 

24 

25 

7.4 

7.4 

7.2 

7.2 

7.6 

25 

23 

22 

21 

20 

16 

14 

14 

15 

16 

14 

13 

13 

12 

12 

41 

26 . 48 

70 

25 

45 

38 

34 

34 

102 

1,160 824 

120 

107 

733 

70 

46 

44 

117 

55 

0 

0 

0 

0 

0 

0 0 

26 

27 

28 

29 

30 

31 

8.5 

9.0 

8.0 

7.3 

7.2 

20 

20 

20 

18 

16 

15 

1511 

1511 

14 12 14 

14 - 13 

18 

16 

14 

14 

14 

14 

46 

32 

33 

36 

282 

231 

79 

52 

62 

55 

35 

44 

i2 

7.2 

5.3 

3.8 

0 

0 

0 

0 

0 

0 

e 00000 00 C 

sec. - - '
60 TRINITY RIVER BASIN 

Discharge, in second-feet, of Big Sandy Creek near Bridgeport, Tex., 1946-48--Continued 

1947-48 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 0 0.1 0 348 6.9 36 10 2.4 1.4 18 2 

3 

4 

0 

0 

0 

0 

0 

0 

0 

0 

24 

42 

16 

9.6 

9.0 

10 

9.6 

114 

120 

36 

9.2 

9.5 

9.6 

2.2 

45 

55 

1.0 

.7 

.4 

7.6 

4.9 

5.6 5 0 0 8.2 7.3 8.6 29 11 10 .1 4.0 

6 0 0 5.3 6.5 8.7 25 11 5.7 0 2C 7 0 0 1,870 6.0 8.6 23 17 3.7 0 67 8 8.6 0 216 6.0 8.5 21 15 2.5 0 19 9 

10 3.9 

1.0 0 

0 27 

10 6.0 5.6 7.2 7.5 19 

19 8.2 

7.9 2.2 

17 40 

31 7.3 4.6 

11 .2 0 5.3 5.1 9.0 14 8.1 66 5.3 9.7 12 

13 

14 

15 

0 

0 

0 

0 

0 

0 

3.6 

7.4 

3.7 

3.2 

2.8 484 

5.3 

5.0 

4.4 

4.4 

a6.4 

5.9 

13 

16 

16 

18 

18 

18 

12 

11 

6.0 

5.8 

69 

25 

13 

7.3 

1.8 

.6 

.2 

0 

10 

5.0 

2.6 

1.5 

16 

17 

18 

19 

20 

0' 

0 

0 

0 

0 

2.3 

1.0 

.4 

.2 

.1 

129 

28 

13 

7.3 

5.5 

4.4 

4.1 

3.7 

4.4 

5.0 

12 

9.2 

8.4 

8.2 

7.2 

17 

15 

15 

20 

16 

5.8 

5.5 

4.9 

4.3 

4.0 

5.2 

3.2 

2.3 

1.6 

1.2 

0 

0 

0 

0 

0 

1.0 

.6 

.4 

.2 

0 

21 

22 

23 

24 

25 

0 

0 

0 

6.6 

18 

0 

0 

4.8 

4.5 

2.2 

4.6 

4.2 

4.0 

3.7 

3.4 

5.2 

5.4 

5.3 

4.5 

3.8 

28 

26 

12 

11 

694 

17 

19 

15 

14 

13 

3.8 

3.8 

3.6 

3.4 

6.6 

1.0 

.8 

.6 

.5 14 

0 

0 

0 

112 

194 

0 

0 

0 

0 

0 

26 63 1.2 3.4 3.7 747 13 10 13 214 0 27 36 .5 3.4 5.8 238 11 6.0 21 656 0 28 

29 

30 

31 

6.5 

3.0 

1.4 

.5 

.2 

.1 

0 

-

3.4 

3.5 

3.6 135 

5.8 

5.8 

5.7 

5.9 

198 

60 

-

-

9.2 

10 

11 

11 

3.7 

3.0 

2.6 

-

16 

6.8 

3.6 

2.0 

158 

362 

172 

-

0 

0 

0 

0 

Peak discharge (base, 1600 sec.-ft.).- Dec. 7 (5 a.m.) 2,660 sec.-ft. 

a No gage-height record discharge computed on basis of estimated gage height. 

Monthly discharge, In second-feet, 1946-48 

00 00000 0000000000 00000 00000 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 1946 0 0 November 3,862.9 1,670 December 6,912 2,690 

Calendar year 1946 54,857.4 3,680 

January 1947 551 26 February 338 14 March 878 198 April 

May 6,107 

8,965 2,430 1,430 June 631.8 117 

-

July 12.3 2.9 August 

September 0 

39.9 0 

36 

00W 

0=M000 

0 0 125 7,660 223 13,710 

150 108,800 

1.7.8 1,090 12.1 670 28.3 1,740 204 12,110 289 17,780 21.1 1,250 .40 24 0 0 1.33 75 

Water year 1946-47 28,297.9 2,690 0 77.5 56,111 

October 1947 168.7 83 0 5.44 335 November 28.6 7.4 0 .95 57 December 3,014.5 1,870 0 97.2 5,980 

Calendar year 1947 20,734.8 2,430 0 56.8 41,120 

January 1948 

February 555.7 2.193.9 348 747 3.7 

5.9 17.9 

75.7 1,10/ 4,350 March 

April 

May 

June 

July 

August 

September 

752.2 

222.3 

418.8 1,900.5 189.0 .7 

0 

120 

17 

69 

656 

67 .6 

0 

9.2 

2.6 

.5 

0 

0 

0 

0 

24.3 

7.41 

13.5 

63.4 

6.10 

.02 

0 

1,490 441 

831 3,770 375 1.4 

0 

Water year 1947-48 9,444.9 1,870 0 25.8 18,730 
		

TRINITY RIVER BASIN 61 

Clear Fork Trinity River near Aledo, Tex. 

Location.- Water-stageTecorder, lat. 32°38'25", long. 97°33'50", 3 miles downstream 

from Turkey Creek, 3f miles upstream from bridge on U. S.HHighway 377, 4 miles southeast of Aledo, Parker County, and 11.8 miles upstream from Benbrook Dam (under construction). Datum of gage is 723.3 feet above mean sea level, datum of 1929. 

Drainage area.- 246 square miles. 

Records available.- August 1947 to September 1948. 

Extremes.- 1947: Maximum discharge during period August to September, 6.2 second-feet 

Sept. 12 (gage height, 2.60 feet); no flow most of time. 

1947-48: Maximum discharge during water year, 8,450 second-feet Feb. 25 (gage 

height, 22.53 feet); no flow at times. 

Maximum stage known since 1858, about 34 feet between Apr. 25 and May 9, 1922, from 

information by local resident. 

Remarks.- Records good. No diversions above station. 

Discharge, in second-feet, 1947-48 000000001 

1947 

Day Aug. Sept. Day Aug. Sept. Day Aug. Sept. Day Aug. Sept. 00000000...,

1 9 0 17 0 

I 1 

00000001 

- 25 0 0 2 - 10 0 18 0 26 0 0 3 - 11 0 19 0 27 0 0 4 - 12 .5 20 0 28 .6 0 5 - 13 0 21 0 29 1.2 0 6 - 14 .7 22 0 30 .7 0 7 - 15 1.1 23 0 31 .4 - 8 0 16 .5 24 0 

1947-48 

Day Oot. Nov. Deo. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 

2 0 

0 2.1 

2.0 4.8 5.2 1,240 86 22 

22 249 

171 26 

26 12 

12 12 

10 6.1 

4.6 

3 0 2.0 5.8 49 24 120 25 12 9.3 10 

4 0 2.1 17 36 24 104 25 13 8.6 8.0 5 0 2.3 13 29 22 165 26 13 8.0 7.7 

8 0 2.0 7.2 26 21 128 26 12 6.8 50 7 0 2.0 478 23 22 102 26 10 5.9 28 

8 0 2.0 74 22 23 89 24 10 6.6 15 9 0 2.0 20 22 22 82 23 10 5.7 6.8 10 0 2.2 12 19 22 74 23 13 5.2 9.6 

11 0 2.3 9.0 18 24 59 23 155 5.0 7.2 12 0 2.2 8.4 18 25 60 22 58 4.5 5.0 13 0 2.8 7.5 16 20 65 23 22 4.0 3.6 14 0 16 7.2 15 30 62 22 16 3.4 3.0 16 0 18 222 15 36 74 21 14 3.0 2.5 

16 0 6.3 157 15 28 53 20 12 2.6 1.9 17 

18 90 

6.9 4.2 4.0 30 19 14 13 24 22 46 

47 20 

19 12 

14 2.5 2.1 1.4 1.1 19 2.1 4.4 15 15 22 . 47 16 366 1.6 .8 20 1.2 4.4 13 16 20 46 16 54 1.4 .6 

21 .8 4.4 12 18 19 49 16 24 1.4 .4 22 

23 .7 

.7 5.4 6.0 11 11 17 

16 20 

20 62 

45 16 

16 17 14 1.1 .8 .2 

.1 24 .7 6.9 10 14 21 39 15 12 .9 .1 25 3.4 5.0 9.4 13 2,710 36 27 58 1.2 .1 

28 

27 49 

69 4.6 

4.8 9.0 9.0 13 

16 2,120 889 35 32 38 

18 118 56 91 

63 0 

0 28 9.6 5.0 9.4 11 258 29 14 41 14 0 29 3.8 5.0 9.7 16 171 30 13 20 43 3.0 30 

31 3.1 

2.5 4.8 

- 9.4 552 13 

19 -

- 30 

28 12 

- 15 

12 12 - 1.0 

.2 

Peak discharge (base, 3,000 sec.-ft.).- Peb. 25 (10:30 p.m.) 8,450 sec.-ft. 

Monthly discharge, in second-feet, 1947-48 

0. n.p0 00000 0000000000 00000 000.9 

N.00 +1., 

Month Seoondfoot-days Maximum Minimum Mean Runoff inet acre-feet 

Au 31, 1947 2.9 

3.2 1.2 

1.1 

0 

0 0.12 

.11 5.8 

6.3 

Water year - - 12 

October 1947 243.5 90 0 7.85 483 November 137.2 18 2.0 4.57 272 Deceaber 1,777.0 552 4.8 __. 57.3 3,520 

Calendar year - ..._ _ - - - -

January 1948 February 

March 

April 

May 

June 

1,873 

6,703 

2,258 637 1,227 336.6 

1,240 

2,710 249 

38 

366 

91 

11 

19 

28 

12 

10 .8 

60.4 

231 

72.8 

21.2 

39.6 

11.2 

3,720 

13,300 

4,480 

1,260 

2,430 668 July 

August 

September 

178.0 8.2 

0 

50 

4.5 

•0 

0 

0 

0 

5.74 

.26 

0 

353 

16 

0 

Water year 1947-48 15,378.5 2,710 0 42.0 30,500 
		

62 TRINITY RIVER BASIN 

Clear Fork Trinity River near Benbrook, Tex. 

'Location.- Water-stage recorder, let. 32°39.54", long. 97°26.30", li miles downstream from 

henprook Dam (under construction), 1.7 miles southeast of Benbrook, Tarrant County, 2.1 

miles downstream from Dutch Creek, and 2.9 miles upstream from Marys Creek. Datum of 

gage Is 604.2 feet above mean sea level, datum of 1929. 

Drainage area.- 435 square miles. 

Records available.- July 1947 to September 1948. 

bxtremes.- 1V4/: Maximum discharge during period July to September, 890 second-feet Sept. 

12 (gage height, 5.52 feet); no flow Sept. 9-11. 

1947-48: Maximum discharge during year, 18,000 second-feet Feb. 25 (gage height, 

24.64 feet), from rating curve extended above 11,000 second-feet on basis of areavelocity studies and slope-area determination in 1949 at gage height 28.72 feet; no 

flow at times. 

Remarks.- Records good except those above 3,000 second-feet, which are fair. No diversions 

above station. 

Discharge, in second-feet, 1947-48 

1947 

Day July Aug. Sept. Day July Aug. Sept. Day July Aug. Sept. Day July Aug. Sept. 

1 - 1.0 1.0 9 - 0.6 0 17 3.9 0.4 1.6 25 1.4 0.3 0.8 2 - .9 .5 10 - .6 0 18 3.2 .4 1.0 26 1.4 1.6 .8 3 . - .8 .4 11 - .9 4.1 19 2.7 .3 .8 27 1.4 4.2 .8 4 - .6 .3 12 - 1.0 170 20 2.2 .3 1.4 28 1.2 1.4 .8 5 - .5 .2 13 - .6 8.5 21 2.0 .4 1.2 29 1.2 1.0 .8 6 - .6 .2 14 - .4 3.3 22 1.8 .4 .9 30 1.0 .8 .8 7 -. .8 .1 15 - .4 41 23 1.8 .4 .8 31 1.0 .6 -

8 - .8 .1 16 - .4 4.3 24 1.6 .3 .8 

1947 48 

Day Oot. Nov. Deo. Jan. Feb. War. Apr. May June July Aug. Sept. 

1 0.6 3.6 8.0 1,520 70 1,280 76 C4 Cl 10 1.9 1.4 2 .8 5.0 11 216 70 580 74 22 18 7.5 1.9 .9 3 .8 2.7 13 127 70 398 72 22 16 336 1.9 .7 4 .8 2.7 70 101 70 341 72 23 14 120 1.7 .5 5 .8 2.7 34 88 65 619 72 23 13 350 1.4 .4 

6 .8 3.6 19 79 64 393 72 21 12 106 1.3 .2 7 .6 3.9 736 73 73 307 71 17 10 80 1.1 .1 8 .6 3.6 340 72 77 294 67 15 8.8 80 1.0 0 9 .6 3.9 52 70 68 259 64 15 8.8 25 1.0 .1 10 .6 4.3 33 64 72 238 62 24 8.8 21 1.0 0 

11 .8 4.3 24 59 77 200 59 533 7.5 22 .7 0 12 .4 4.6 21 59 77 175 55 139 7.2 14 .6 0 13 .3 5.8 20 53 70 178 50 66 6.4 11 .5 0 14 .4 22 19 50 91 172 49 48 6.1 8.8 .3 0 15 .4' 35 389 50 91 166 48 39 5.4 7.2 .2 0 

16 .8 16 360 48 79 152 48 32 4.7 6.8 .2 0 17 124 9.1 82 42 70 135 48 29 4.4 5.4 .1 0 18 24 8.0 57 43 67 135 43 43 4.0 5.0 0 0 19 7.5 7.0 48 50 67 133 40 340 3.8 4.7 0 0 20 3.9 7.0 42 60 60 123 37 91 3.2 4.4 0 0 

21 2.5 49 38 73 57 128 36 41 2.9 3.8 0 0 22 2.0 33 36 62 62 358 35 29 2.5 3.4 0 0 23 1.6 14 35 51 64 146 35 23 2.3 3.2 0 0 24 1.6 12 33 44 65 125 32 18 3.7 3.0 0 0 25 3.6 11 31 43 4,490 115 67 190 4.4 2.9 0 0 

26 151 8.6 30 44 3,460 113 71 191 187 2.7 0 0 27 103 6.6 29 47 1,470 98 42 114 132 2.7 .1 0 28 26 6.6 29 44 699 93 32 71 275 2.3 .9 0 29 10 6.6 29 48 497 96 27 40 138 2.1 .7 0 30 6.6 7.0 28 47 91 25 30 36 2.1 .8 0 31 5.2 - 701 62 83 24 - 2.0 1.6 -

Peak discharge (base, !...„900 sec.-ft.).- Feb. 25 (11:30 a.m.) 18,000 sec.-ft.; Feb. 26 (4:30 a.m.) 7, 850 sec.-ft.; Mar. 1 (4- p.m.) 4,700 sec.-ft. 

Monthly discharge, in second-feet, 1947-48 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

July 17-31, 1947... 27.8 3.9 1.0 1.85 55 August 23.7 4.2 .3 .76 47 September 247.3 170 0 8.24 491 

The period - - - 593 

October 1947 482.4 151 .3 15.6 957 November 307.2 49 2.7 10.2 609 December 3,397.0 736 8.0 110 6,740 

Calendar year - -- - -

January 1948 3,489 1,520 42 113 6,920 February 12,312 4,490 57 425 24,420 March 7,734 1,290 83 249 15,340 April 1,581 76 25 52.7 3,140 May 2,337 533 15 75.4 4,640 June 966.9 275 2.3 32.2 1,920 July 1,238.0 350 2.0 39.9 2,460 August 20.9 1.9 0 .67 41 September 4.3 1.4 0 .14 8.5 

Water year 1947-48 33,869.7 4,490 0 92.5 67,200 
63 TRINITY RIVER BASIN 

Clear Fork Trinity River at Fort Worth, Tex. 

:,oration.- Water-stage recorder and concrete control, lat 32°44', long 97°21', at 

bridge on Vickery Boulevard (revised), Fort Worth, Tarrant County, 388 feet downstream 

from Texas & Pacific Railway bridge, and 3 miles upstream from mouth. Datum of gage 

is 532.91 feet above mean sea level, datum of 1929. 

Drainage area.- 522 square miles. 

Records available.- March 1924 to September 1948. 

Average discharge.- 24 years, 108 second-feet. 

Extremes.- Maximum discharge during year, 16,800 second-feet Feb. 26 (gage height, 19.14 

feet); no flow at times. 

1924-48: Maximum discharge, 27,000 second-feet Mar. 30, 1945 (gage height, 22.10 

feet), from rating curve extended above 17,000 second-feet: no flow at times. 

Maximum discharge known, 74,300 second-feet Apr. 25, 1922 (gage height, 27.5 feet, 

present datum), by slope-area method, data furnished by city engineer of Fort Worth. 

Remarks.- Records good. Texas & Pacific Railway Co. diverts small amount of water from 

poolin which gage is located. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 

2 

3 

4 

0 

0 

0 

0 

9.7 

3.8 

3.8 

4.8 

11 

13 

28 

76 

2,090 237 

143 

114 

83 

81 

80 

83 

1,670 780 

486 

406 

a114 

alll 

a104 

9100 

3.: 

28 

28 

28 

28 

28 

25 

23 

:4 

34' 

131 

5 0 2.0 40 97 76 808 93 28 21 354 

6 0 .7 28 83 76 552 90 28 19 136 

7 0 3.8 683 76 86 406 86 23 14 84 0 

8 0 0 426 80 90 354 86 21 13 79 

9 

10 0 3 0 

0 61 

52 76 

67 76 80 332 284 83 80 21 

31 13 

13 38 

30 0 

11 

12 

13 

14 

15 

0 

3 

0 

0 

0 

0 

0 

0 

21 

42 

23 

21 

19 

26 

451 

64 

64 

58 

55 

55 

86 

90 

86 

107 

111 

222 

218 

237 

222 

206 

76 

67 

67 

61 

61 

603 

193 

70 

49 

38 

11 

9.7 

3.7 9.7 

.1 

25 

17 

14 

9.7 

8.4 0 

3 

16 

17 

18 

0 

75 

36 

23 

13 

13 

468 

97 

64 

55 

52 

52 

100 

86 

66 

193 

170 

166 

58 

55 

52 

32 

28 

147 

..9 

5.9 

3.8 

8.4 

7.1 

5.9 

0 

J 

0 

19 

20 7.1 

2.8 7.1 

8.7 52 

46 61 

73 86 

76 166 

154 46 

43 387 128 2.8 

2.0 3.8 

2.0 0 

0 

21 

22 2.0 

.2 8.9 70 43 

43 93 

80 73 

80 158 

444 

40 

40 58 43 0 

0 1.3 

.2 0 

0 23 0 16 43 64 83 197 40 32 0 0 24 0 14 38 58 86 .158 38 26 .6 0 0 25 6.2 16 35 55 6,820 143 86 210 4.20 0 

26 

27 

28 

105 

111 

33 

16 

16 

11 

38 

40 

43 

55 

58 

49 

4,970 

2,010 88C 

139 

a139 

a136 

83 

58 

40 

222 

153 

83 

173 

170 

278 

.5 

0 

0 

0 

0 

. 

29 

30 

31 

11 

7.1 

8.7 

13 

13 

-

43 

43 

765 

55 

64 

73 

585 a129 

a121 

all8 

35 

32 52 40 

30 

235 

49 0 , 

Month Secondfoot-days Maximum Minimum Mean Runoff in 

acre-feet 

October 

November 

December 

406.1 

350.3 3,839 

111 

70 

765 

0 

0 

11 

13.1 

11.7 

124 

805 

695 7,610 

Calendar year 1947 30,975.5 2,220 0 84.9 61,430 

January 

February 

March 

April 

May 

June 

July 

August 

September 

4,356 

17,311 

9,914 

2,025 

2,890 

1,174.4 

1,339.3 0 

.2 

2,090 

6,820 

1,67C 114 

603 

278 

354 0 

.2 

49 

73 

118 

32 

21 

0 

0 

o 

0 

141 

597 

320 

67.5 

93.2 

39.1 

43.2 

0 

.01 

8,640 

34,340 

19,660 

4,020 

5,730 

2,330 

2,660 0 

.4 

Water year1947-48 43,605.3 6,820 0 119 86.490 

Peak discharge (base 3,900 sec.-ft.).- Feb. 25 2:15 a.m. 16,800 sec.-ft.; Mar. (6:15 p.m.) 

5,680 sec.-ft. a No gage-height record; discharge computed on basis of recorded range in stage, weather records, 

and records for nearby stations. 
		

		

		

		

64 TRINITY RIVER BASIN 

Lake Dallas near Lake Dallas, Tex. 

Location.- Water-stage recorder, lat. 33'071 , long. 96°59', in gatehouse at Garza Dam 

on Elm Fork Trinity River, 1.6 miles upstream from Little Elm Creek and 2.0 miles 

southeast of town of Lake Dallas, Denton County. Datum of gage is 0.08 foot above 

mean sea level, datum of 1929. 

Drainage area.- 1,160 square miles. 

Records available.- December 1928 to September 194B. 

Extremes.- Maximum contents during year, 232,800 acre-feet Feb. 27 (gage height, 528.47 

reet); minimum, 76,500 acre-feet Dec. 3 (gage height, 512.00 feet). 

1928-48: Maximum contents not determined; maximum gage height, 534.0 feet Apr. 25, 

1942, from floodmark; all gates were open during passing of crest through lake; minimum contents observed, 42,500 acre-feet Apr. 1, 1940 (gage height, 505.8 feet). 

Remarks.- Reservoir is formed by earthen hydraulic-fill dam, consisting of 567 feet of 

concrete service spillway and two dikes. There are two emergency earthen spillways 

beyond right end of dam. Dam completed in November 1927 and storage began Feb. 16, 

192Q. Capacity, 194,000 acre-feet (gage height, 525.0 feet, top of service spillway). Water can be withdrawn through one 18-inch outlet gate (gage height of bottom 

of gate, 474.0 feet), four 48-inch outlet gates (gage height of bottom of gate, 463.0 

feet), and one 6-inch gate (gage height of bottom of gate, 474.0 feet). Dead storage 

is negligible. Water is used by city of Dallas for municipal supply. Figures given 

herein represent total contents. 

Cooperation.- Capacity table furnished by city of Dallas. 

Monthly gage height and contents, water year October 1947 to September 1948 

Change in contents GEvehei ht Contents during month (acre-feet) (acre-feet) 

Sept.30 516.1 107,600 - Oct. 31 513.8 89,100 -18,500 Nov. 30 512.2 77,900 -11,200 Dec. 31 520.4 146,200 +68,300 

Calendar year 1947 -- -5,000 

Jan. 31 522.9 171,200 +25,000 Peb. 29 526.6 211,600 +40,400 Mar. 31 521.2 154,200 -57,400 Apr. 30 520.5 147,200 -7,000 May 31 524.4 187,400 +40,200 June 30 523.0 172,200 -15,200 July 31 522.2 164,200 -8,000 Aug. 31 518.6 129,100 -35,100 Sept.30 514.4 93,500 -35,600 

Water year 1947-48 - - -14,100 

t Gage height at 12 p.m. 
TRINITY RIVER BASIN 65 

Elm Fork Trinity River near Carrollton, Tex. 

Location.- Water-stage recorder above spillway of California Dam, let. 32°52'25", long. 

96'55'50", at bridge on State Highway 114, 100 feet downstream from Hackberry Creek and 

5.5 miles southwest of Carrollton, Dallas County. Datum of gage is 410.46 feet above 

mean sea level, datum of 1929. 

Drainage area.- 2,542 square miles. 

Records available.- July 1938 to September 1948. January 1907 to December 1928 at site 

near Dallas, / miles downstream (January 1907 to September 1920, monthly records only 

in Water-Supply Paper 850). November 1923 to July 1938 at site 8.5 miles upstream, at 

Carrollton Dam. Records equivalent except following intense local rains and during periods of low flow affected by municipal pumping between present site and former site near 

Dallas. 

Average discharge.- 40 years (1907-22, 1923-48), 873 second-feet. 

Extremes.- Maximum discharge during year, 27,600 second-feet Feb. 27 (gage height, 16.59 

reet); minimum, 160 second-feet Apr. 18, 19, May 3, 4. 

1907-48: Maximum gage height, about 28 feet May 25, 1908, present site and datum, 

from floodmarks, furnished by State Reclamation Department (discharge not determined); 

maximum discharge subsequent to 1908, 90,700 second-feet Apr. 26, 1942 (gage height, 

21.05 feet); no flow at times. 

Remarks.- Records good except those computed on basis of backwater curve, which are fair. 

Flow regulated by Lake Dallas (see preceding page). No diversion above station. 

Revisions (water year).- W 788: 1924. 

Rating table, water year 1947-48 (gage height, in feet, and discharge, in second-feet) (Shifting-control method used Feb. 26 to Mar. 4, Mar. 13 to May 4) 

1.5 155 4.0 1,900 12.0 8,200 1.7 257 5.0 2,900 12.5 9,900 

2.0 419 6.0 3,700 13.0 12,300 2.5 710 7.0 4,320 14.0 17,500 

3.0 1,040 8.0 4,880 16.0 28,800 

3.5 1,440 10.0 6,080 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 348 200 215 5,500 310 11,300 342 175 321 673 464 447 2 348 200 210 7,020 364 c7,720 337 170 310 631 458 447 3 348 195 205 2,740 414 c4,610 241 165 299 544 458 447 4 348 195 359 716 447 e3,600 185 649 299 804 458 447 5 348 195 386 544 464 3,700 185 810 294 643 458 447 

6 348 195 321 447 469 3,770 190 414 289 608 458 441 7 278 195 1,730 414 515 3,630 195 252 284 544 458 441 8 294 195 4,880 386 555 3,480 195 205 370 561 458 441 9 236 195 2,490 370 521 3,320 190 190 2,780 1,300 458 441 10 231 195 932 364 436 3,240 195 195 870 756 458 441 

11 226 195 447 348 408 2,150 195 1,720 492 538 458 441 12 226 195 337 337 436 1,710 185 4,380 481 498 458 441 13 721 195 305 326 464 1,580 185 2,830 469 538 458 441 14 221 226 278 321 532 578 190 1,660 458 680 464 441 15 771 241 3,950 310 655 515 215 1,660 458 578 464 441 

16 195 236 7,220 305 716 '498 200 1,480 453 509 464 436 17 180 231 5,570 299 544 469 175 810 453 475 458 436 18 185 226 893 294 458 447 165 326 453 464 458 436 19 195 215 521 289 408 436 200 278 447 458 458 436 20 195 715 419 294 380 436 226 268 447 447 458 436 

21 195 226 364 299 364 436 226 268 447 447 458 436 22 195 247 337 305 380 567 221 262 447 447 458 436 23 195 773 321 305 458 486 200 262 458 447 458 436 24 185 ?99 305 299 464 441 190 257 464 447 453 436 25 180 273 294 294 3,760 414 241 278 458 447 458 436 

26 231 252 284 294 13,000 402 236 425 481 475 458 436 27 236 ?26 278 289 26,400 380 221 935 481 1,190 453 436 28 210 221 273 284 22,400 370 210 3,140 661 1,360 453 430 29 205 221 273 289 15,300 359 195 3,240 830 648 453 430 30 231 215 268 289 - 353 185 2,740 649 469 453 430 31 210 - 931 310 - 353 - 502 464 453 -

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 7,465 348 180 241 14,810 November 6,588 299 195 220 13,070 December 35,596 7,220 205 1,148 70,600 - - Calendar year 1947 209,056 7,220 180 573 414,700 - January 24,881 7,020 284 803 49,350 February 92,022 26,400 310 3,173 182,500 March 61,750 11,300 353 1,992 122,500 April 6,316 342 165 210 12,530 May 30,946 4,380 165 998 61,380 June 16,103 2,780 284 537 31,940 July 19,090 1,360 447 616 37,860 August 14,192 464 453 458 28,150 September 13,167 447 430 439 26,120 

Water year 1947-48 328,116 26,400 165 896 650,800 

Peak discharge base, 8,100'sec.-ft. .- Feb. 27 (10 a.m.)27,600 sec.-ft. 

c Backwater from return of- overbank low; discharge computed on basis of backwater curve. 
66 TRINITY RIVER BASIN 

Denton Creek near Roanoke, Tex. 

Location.- Water-stage recorder, lat. 33°02', long. 97°12', 340 feet upstream from bridge 

---(74777-S. Highway 377, a quarter of a mile downstream from Texas & Pacific Railway 

bridge, and 2.2 miles northeast of Roanoke, Denton County. Datum of gage is 523.6 

feet above mean sea level, datum of 1929. 

Drainage area.- 634 square miles. 

Records available.- October 1923 to December 1927, March 1939 to September 1948. 

Average discharge.- 12 years (1924-27, 1939-48), 208 second-feet. 

Extremes.- Maxtmum discharge during year, 16,300 second-feet Feb. 25 (gage height, 24.78 

feet); no flow at times. 

1923-27, 1939-48: Maximum discharge, 49,700 second-feet Apr. 20, 1942 (gage height, 

30.20 feet), from rating curve extended above 32,000 second-feet on basis of velocityarea studies; no flow at times. 

Maximum stage known, 31 feet In May 1908, from information by local residents. 

Remarks.- Records good. No large diversions above station. 

Revisions (water years).- W 850: 1926 (July mean); W 898: 1924(M). 

Rating table, water year 1947-48 (gage height, in feet, and discharge, in second-feet) (Shifting-control method used Oct. 26-29, Dec. 15, 16, and June 8-27) 

2.12 0 2.7 15 3.6 130 6.0 958 2.2 .4 2.8 21 3.8 174 8.0 1,750 2.3 1.6 2.9 29 4.0 222 10.0 2,610 2.4 3.6 3.0 38 4.2 278 12.0 3,560 2.5 6.4 3.2 62 4.6 420 16.0 5,630 2.6 10 3.4 92 5.0 570 20.1 8,800 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Peb. Mar. Apr. May June July Aug. Sept. 

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 

,A, as 00000 00000 00000 00000 00000 .

0 (A :-.NCY, 

4.4 3.6 3,320 58 490 58 17 15 184 2.1 2.4 1,250 89 380 52 16 13 67 .8 84 331 96 292 49 15 12 31 .2 17 180 96 251 48 281 10 46 0 6.8 117 89 302 49 242 8.9 60 

0 23 92 87 341 52 66 7.5 27 0 1,070 78 96 272 52 32 6.0 17 0 964 70 103 225 50 20 8.8 14 0 663 69 81 208 61 18 8.2 10 0 164 62 81 196 52 26 5.2 23 

0 70 54 94 165 47 172 4.4 9.3 0 39 53 108 132 43 150 4.6 76 0 26 50 86 145 42 86 4.9 235 2.3 20 43 141 161 78 68 5.2 114 .3 1,870 39 174 152 52 46 3.4 41 

.4 992 38 148 134 40 29 2.2 17 2.8 333 35 118 116 36 22 1.4 8.5 9.3 145 31 96 108 33 17 .9 4.9 6.4 80 32 87 118 30 15 .7 3.1 5.5 52 37 75 114 27 13 .3 1.9 

3.6 39 41 76 112 26 12 .2 1.3 3.8 33 45 130 128 25 10 0 .8 3.4 30 41 148 110 25 9.6 0 .4 2.6 26 35 118 92 24 9.6 0 .2 2.6 26 33 8,770 89 26 12 0 0 

13 22 30 6,250 84 37 88 .1 0 11 21 36 3,590 75 41 54 63 0 8.2 20 25 1,390 66 30 41 194 0 6.0 20 41 564 62 24 32 182 0 4.6 20 40 63 20 23 218 0 - 1,470 42 62 - 18 - 0 

Month Maximum Minimum Mean Second- Runoff in foot-days acre-feet 

October 30.2 14 0 0.97 60 November 93.3 13 0 3.11 185 December 8,346.8 1,870 2.4 269 16,560 

Calendar year 1947 33,802.2 2,260 0 92.6 67,050 

January 6,390 3,320 25 206 12,670 February 23,039 8,770 58 794 45,700 March 5,245 490 62 169 10,400 April 1,229 78 20 41.0 2,440 May 1,660.2 281 9.6 53.6 3,290 June 779.9 218 0 26.0 1,550 July 992.4 235 0 32.0 1,970 August 0 0 0 0 0 September 0 0 0 0 0 

Water year 1947-48 47,805.8 8,770 0 131 94,820 

Peak discharge (base, 7,200 sec.-ft.).- Feb. 25 (8 p.m.) 16,300 sec.-ft. d Doubtful gage-height record; discharge computed on basis of estimated gage heights. 
, ,,

TRINITY RIVER BASIN 67

Denton Creek near Grapevine, Tex. 

Location.- Water-stage recorder, lat. 32°59'15", long. 97°00'45", at bridge on State Highway in, 1.3 miles downstream from Bakers Branch, 4.3 miles downstream from Grapevine 

Dam, now under construction, 5.0 miles northeast of Grapevine, Tarrant County, and 6.1 

miles upstream from mouth. Datum of gage is 439.13 feet above mean sea level, anadlusted. Prior to Oct. 6, staff gage at same site and datum. 

Drainage area.- 746 square miles. 

Records available.- October 1947 to September 1948. 

Extremes.- Maximum discharge during year, 13,900 second-feet Feb. 26 (gage height, 30.38 

feet), from rating curve extended above 5,000 second-feet by conveyance-slope method; 

no flow at times. 

Maximum stage known occurred in May 1908 and was slightly higher than flood of April 

1942, which reached a stage of 35.9 feet, from inCormation by local resident. 

Remarks.- Records good except those above 5,000 second-feet, which are poor. No diversions 

above station. 

Rating tables, water year 1947-48 (gage height, in feet, 

and discharge, in second-feet) 

(Shifting-control method used Oct. 27 to Dec. 5) 

Oct. 1 to Feb. 28 Feb. 29 to Sept. 30 

2.92 0 5.5 51 22 2,500 2.92 0 4.0 13 7.0 163 3.0 .2 6.0 76 24 3,400 3.0 .2 4.4 24 8.0 247 3.2 .8 7.0 143 25 4,200 3.2 1.1 4.8 37 10 440 3.4 1.8 8.0 223 25.5 4,760 3.4 2.8 5.0 44 12 657 3.6 3.6 10 408 26 5,500 3.6 5.4 5.5 67 14 907 3.8 6.2 12 628 27 7,200 3.8 8.8 6.0 96 15 1,060 4.0 9.8 14 898 28 '9,000 4.5 21 16 1,230 29 10,900 Note.- Same as preceding table above 

5.0 34 20 2,000 15-rFFr. 

Discharge, in second-feet water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

E3 

24 

25 

26 

27 

28 

29 

30 

31 

N ....m5i.00000 0 MMM MMMM S 

. . . . . . . . . . . . . . .. . . . Z. ;., ....—,..,.. o rs3NN. (I MM... NWNwl,

8.7 

5.4 

3.7 

2.4 

1.7 

1.4 

1.1 

.8 

.8 

.7 

.6 

.6 

.5 

.7 

2.2 

.5.4 

2.8 

2.0 

2.9 

8.3 

6.1 

4.9 

4.2 

4.7 

3.5 

2.9 

4.7 

,!,-.1 "")21Ili

EV.M3 §n7n E, '4,15 a,"g Xg

=q 

4a 

2,860 46 585 72 25 20 

2,280 67 528 65 22 16 

516 104 350 61 20 13 

241 108 301 59 83 12 

151 104 292 60 342 10 

104 94 370 61 119 8.3 

91 98 340 62 52 7.1 

72 118 274 59 34 55 

67 108 238 60 25 165 

64 82 220 66 34 16 

58 98 203 56 159 8.4 

52 122 156 52 219 5.9 

50 108 149 49 112 1.6 

46 111 175 56 84 .4 

42 183 175 76 62 .2 

42 191 160 52 43 .1 

41 143 142 44 31 .3 38 104 124 40 25 .5 

36 88 124 38 21 .2 

37 76 '135 34 19 .2 

42 64 128 32 16 .1 

48 89 138 30 15 .1 47 163 138 30 14 .2 

42 140 118 30 12 .3 39 2,220 105 38 12 .3 

36 10,600 99 35 43 1.2 

33 5,240 93 44 76 .7 39 2,690 81 42 49 159 29 868 75 33 38 229 

46 75 28 30 171 

43- 75 23 -

2 4, 2=2 ,,,,,4H, ,.

.;:".00000000000 iE2F, 

12 

9.0 

6.9 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 

November 

December 

45.9 

109.6 

7,501.3 

24 

12 

2,000 

0 

.5 

4.7 

1.48 

3.65 

242 - Calendar year - - - -

January 

February 

March 

April 

Kay 

June 

July 

August 

7,332 

24,227 

6,166 

1,464 

1,859 

902.1 

1,270.1 

0 

2,860 

10,600 585 

76 

342 

229 

247 

0 

29 

46 

75 

28 

12 

.1 

0 

0 

237 

835 

199 

48.8 

60.0 

30.1 

41.0 

o September o 0 0 0 

Water year1947-48 50,877.0 10,600 0 139 

...... : 

5".!' , I . 

iagNE :R... ..(c 

100,900 

Peak dischargeJbase, 7,200 sec.-ft.).- Feb. 26 (6 a.m.) 13,900 sec.-ft. 

a No gage-height record; discharge computed on basis of estimated gage height. 

Computed from graph based on gage readings. 
		

68 TRINITY RIVER BASIN 

East Fork Trinity River near Rockwall, Tex. 

Location.- Chain gage, lat. 32°55'25", long. 96°30'20", at bridge on U. S. Highway 67, 

3 miles southwest of Rockwall, Rockwall County, and 8 miles upstream from Muddy Creek. 

Datum of gage is 404.3 feet above mean sea level, datum of 1929. 

Drainage area.- 831 square miles. 

Records available.- November 1923 to September 1948. 

Average discharge.- 25 years, 504 second-feet. 

Extremes.- Maximum discharge during year, 20,400 second-feet May 12 (gage height, 17.30 

feet); no flow Aug. 23 to Sept. 30. 

1923-48: Maximum discharge determined, 64,800 second-feet June 16, 1935 (gage 

height, 23.39 feet), by slope-area method; maximum gage height, 24.82 feet Apr. 20, 

1942, while levees were breaking; no flow at times. 

A stage of 24.6 feet was reached in April 1922. Levees also broke during this 

flood. 

Remarks.- Records good. Gage read twice daily. No diversion above station. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. Wocgrn MR00000.

48 265 182 

VIVN NIVIVN.U1 N Q, WCOCDNr01. '0041-, ••• nr81. t8'n8(81 fiY

g V. Tc

1 4.8 132 

sg

3,720 210 185

!OWN °?'!'!"! c' "!19( 9') - .1

.. 00 000000 

2 4.0 35 4,900 303 170 45 187 38 3.6 22 5,410 435 42 88 23

1,690 564 616 720 

435 905 369 940 336 1,020 314 1,020 

3 155

4 3.6 18 150 228 63 100

5 3.6 14 146 965 51 786

6 3.4 9.6 146 736 44 1,120

7 3.3 7.4 155 446 37 966 6.7 171 261 34 281 190 58 30 292 8 3.0 9 2.9 6.9

10 3.4 14 303 629 141 39 154 162

9.0 11 281 424 94 250 540 240 686 225 640 200 654 

11 123 1,610 39 8.6 7.8 115 16,900 25 81 141 11,000 21 74 265 4,760 19 96 208 1,680 18 141 

12 

13 5.4 5.8

14 4.0 16

15 3.4 102

16 2.9 260 17 2.1 107 18 1.7 46 19 1.5 39 20 1.4 22 

190 600 122 528 16 141 185 492 104 325 14 46 165 413 98 245 13 25 150 369 90 200 12 22 170 347 80 170 11 20 

21 1.3 38 200 303 73 141 9.0 18 22 1.2 138 220 303 69 122 7.0 16 23 1.1 314 24 1.4 457 25 1.2 337 

26 1.2 132 27 2.3 74 28 12 44 29 1.1 34 30 136 31 31 314 

205 402 66 107 5.6 14 165 358 63 94 63 12 136 424 73 82 380 9.8 

121 1,220 95 240 654 9.0 128 14,100 121 699 265 7.8 116 8,900 103 845 364 57 136 4,730 68 445 696 112 150 55 205 602 29 185 - 240 - 16 

Month Secondfoot-days Maximum Minimum Mean Runoff in 

acre-feet 

October 548.4 314 1.1 17.7 1,090 

November 2,481.2 457 5.8 82.7 4,920 

December 35,146 7,380 24 1,134 69,710 

Calendar year 1947 134,063.3 7,380 0 367 J 265,900 -- - - - - - January 

February 

March 

April 

May 

June 

21,911 

42,651 

25,995 

3,745 

43,506 

4,186.6 

5,410 

14,100 

3,300 265 16,900 696 

116 

210 

195 

55 

39 

5.6 

707 

1,471 839 

125 1,403 140 

43,460 

84,600 

51,560 

7,430 

86,290 

8,300 

July 

August 

September 

4,990.6 52.0 

0 

1,120 11 

0 

7.8 

0 

0 

161 1.68 

0 

9,900 103 0 

Water year 1947-48 185,212.8 16,900 0 506 367,400 

Peak discharge (base, 6,100 sec.-ft.).- Dec. 17 (5 p.m.) 9,250 sec.-ft.; Jan. 2 (8 p.m 7,900 sec.-ft.; Feb. 27 (8:50 a.m.) 18,000 sec.-ft.; May 12 (11:30 a.m.) 20,400 sec.-ft. 
TRINITY RIVER BASIN 69 

Cedar Creek near Mabank, Tex. 

Location.- Water-stage recorder, lat. 32°19'45", long. 96°10'05", at bridge on State Farm 

Highway 85, 2 miles downstream from Lacys Fork and 5 miles southwest of Mabank, 

Kaufman County. Datum of gage is 285.39 feet above mean sea level (Texas Reclamation 

Department bench mark based on Geological Survey datum, unadjusted). 

Drainage area.- 741 square miles. 

Records available.- December 1938 to September 1948. 

Extremes.- Maximum discharge during year, 16,100 second-feet Dec. 9 (gage height, 19.00 

reet), from rating curve extended above 13,000 second-feet on basis of slope-area 

determination at gage height 23.5 feet, at location 12 miles downstream; no flow at 

times. 193&-48: Maximum discharge, 44,800 second-feet Mar. 30, 1945 (gage height, 25.43 

feet), from rating curve extended above 13,000 second-feet on basis of slope-area 

determination at gage height 23.5 feet, at location 12 miles downstream; no flow at 

times. 

Maximum stage known prior to establishment of station, about 23.5 feet Sept. 29, 

1936, from information by local residents; peak discharge of this flood at site about 

12 miles pelow station (drainage area, 910 square miles), 35,400 second-feet,,by slopearea method. 

Remarks.- Records good. No large diversion above station. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

.0,0N

cn 000

0000000 rr 

N ro cA/Imw 

.01.(7) 17, 

1 0000

0000 N NW NO OW, 

1,180 29 15 25 58 

,HR F ,32.7=Vai„ T2gg8 g2 AIH ° t 

-n N 17 n 

14 1,610 12 2,930 11 4,200 261 2,140 853 317 

777 108 562 72 

4,320 56 13,300 47 6,440 41 

2,200 37 

411 34 123 32 76 29 

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 

9 N 10 ")N "." . 

C: 0000 T2T"2 N1017

N-11 

N10 0 2"

1 -

0 00 0000

000000 00000000W00 

5,410 26 12 17 26

5,490 23 11 14 26

3,920 20 13 14 12

1,670 20 9.8 13 11 

1,440 19 138 12 6.5 

1,020 19 65 11 6.3

358 a18 30 11 58

168 a18 14 10 38 

128 a17 67 8.1 18 

105 all 2,770 6.8 24 

81 a19 11,900 5.9 34 

66 93 13,100 5.3 11 

59 983 6,910 4.9 5.7

55 374 2;70 4.2 3.8 

54 90 768 3.6 2.9 

52 42 153 3.2 2.4 

48 28 60 2.7 2.0 

44 20 36 2.4 1.6 

40 15 35 2.1 1.3 

62 13 27 1.9 1.0 

1,090 27

5,390 29 9,390 41 5,96C 64 1,940 50 290 82

112 674 77 1,350 1,290 11 21 1.7 .9

59 1,020 49 321 41 133 

36 106 

2,060 10 16 1.6 .8

2,060 11 13 1.4 .6

755 45 14 1.3 .4

136 322 18 1.1 .3 84 178 153 1.0 .2 

60 76 468 1.0 66 

46 36 259 62 262 

37 22 86 52 70 

32 38 37 

32 434 29 507 27 a288 25 a92 51 313 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 64.0 26 0 2.06 127 

November 8,575.2 2,140 1.5 286 17,010 

December 53,958 13,300 11 1,741 107,000 _ 

Calendar year 1947 197,753.8 - 0 542 392,300 

January 17,184 4,200 27 554 34,080 

February 21,839 2,100 41 753 43,320 

March 28,010 5,490 32 904 55,560 

April 2.614 983 10 87.1 5,180 

May .59,989.8 13,100 9.8 1,290 79,320 

June 301.2 62 1.0 10.0 597 

July 787.7 262 .2 25.4 1,560 

August 228.8 90 0 7.38 454 

September 56.7 12 0 1.89 112 

Water year 1947-48 173,608.4 13,300 0 474 344,300 

Peak dischirgelbase, 5j300 sec.-ft.).- Dec. 9 (4 a.m.) 16,100 sec.-ft.; Dec. 17 (10:30 a.m.) 

10,600 sec.-ft.;-Mar. T-6 p.m.) 6,170 sec.-ft.; May 13 (2:30 a.m.) 15,300 sec.-ft. a No gage-height record; discharge computed on basis of recorded range in stage and weather rec- ords. 
		

70 TRINITY RIVER BASIN 

Chambers Creek near Corsicana, Tex. 

Location.- Water-stage recorder, lat. 32°06'30", long. 96°22'15", at bridge on State 

Highway 31, 500 feet upstream from St. Louis Southwestern Railway bridge, 6 miles east 

of Corsicana, Navarro County, and 17 miles upstream from Richland Creek. Datum of 

gage is 294.26 feet above mean sea level, datum of 1929. 

Drainage area.- 958 square miles. 

Records available.- March 1939 to September 1948. 

Extremes.- Maximum discharge during year, 18,200 second-feet May 12 (gage height, 24.27 

feet); no flow Aug. 7 to Sept. 30. 

1939-48: Maximum discharge, 48,000 second-feet May 3. 1944 (gage height, 27.19 

feet); no flow at times. 

Maximum stage known, about 27f feet in December 1913, from information by local 

residents. 

Remarks.- Re'ords good except those for periods of no gage-height record, which are poor. 

No large diversion above station. 

Discharge, in second-feet, water year October1947 to September1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. MN (A CA o •CO ,+ COW — ttt:tm .00. WOOMMWV O M. O .O

1 15 30 41 2,110 270 1,020 a40 a152 544 2 14 18 39 2,720 444 3,900 a36 a158 414 3 12 8.9 37 1,230 818 1,620 all a142 206 4 12 6.5 125 404 834 525 a32 all° 567

5 11 5.0 266 310 834 502 70 a91 1,280

6 10 3.9 113 270 694 474 432 a78 1.090 285 g66 242 a55 

00000000000 000000 000 00000

7 9.6 4.3 91 240 652 360 8 9.1 121 1,400 215 994 300 62 144

9 6.6 49 2,470 206 1,380 270 a35 47 419 10 7.5 26 2,000 192 667 250 311 42 353

11 10 18 427 172 486 230 4,970 37 640 12 11 13 280 158 689 192 15,800 34 575 13 7.8 11 240 152 532 184 11,400 31 96 14 11 12 206 139 474 192 5,500 27 60 15 8.4 99 864 127 426 188 2,370 24 56 

16 6.4 146 2,960 133 f340 176 770 17 5.1 88 2.970 139 f300 158 18 4.1 56 1,640 136 f280 145 19 2.9 38 498 124 f260 136 20 1.8 34 404 154 f240 136 

21 1.4 60 340 646 210 139 22 2.2 229 310 462 184 583 

21 65 360 18 35 321 15 26 452 14 21 1.610 12 17 

1,070 10 14 305 8.6 12 23 5.3 124 280 310 180 399 220 7.6 9.9 24 3.6 126 250 215 176 245 a176 7.0 8.6 25 2.3 138 225 162 180 188 a155 6.5 7.3

26 2.2 91 206 166 184 145 27 4.4 70 201 250 415 130 478 498 6.0 1,650 232 4.8 28 71 58 201 174 882 116 2,300 276 4.0 29 40 49 196 152 670 105 697 600 3.6 30 29 44 188 162 102 233 962 2.2 31 19 251 192 - 99 a176 - 1.6 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 357.6 71 1.4 11.5 709 

November 1,776.6 229 3.9 59.2 3,520 December 19,619 2,970 37 633 38,910 - Calendar year1947 134,612.4 13,300 0 369 267,000 -

January 12,222 2,720 124 394 24,240 

February 14,695 1,380 176 507 29,150 March 13,209 3,900 99 426 26,200 

April 8,280 2,830 41 276 16,420 

May 52,449 15,800 32 1,689 103,800 

June 3,781.7 962 6.5 126 7,500 

July 6,893.0 1,280 1.6 222 13,670 

August 4.6 1.9 0 .15 9.1 

September 0 0 00 0 

Water year 1947-48 133,187.5 15,800 0 364 264,100 

Peak discharge (base, 13,000 sec.-ft.).- May 12 (10 a.m.) 18,200 sec.-ft. 

a No gage-height record; discharge computed on basis of weather records and records for Cedar Creek near Mabank and Richland Creek near Richland. f Computed on basis of partly estimated gage-height record. 

g Computed from graph based on gage readings. 
		

- - 

TRINITY RIVER BASIN 71 

Richland Creek near Richland, Tex. 

Location.- Water-stage recorder, lat. 31°57', long. 96°25., at bridge on U. S. Highway 

75, /50 feet downstream from Texas & New Orleans Railroad bridge, 1 mile north of 

Richland, Navarro County, and 34 miles downstream from Pinoak Creek. Datum of gage 

is 299.0 feet above mean sea level, datum of 1929. 

Drainage area.- 760 square miles. 

Records available.- December 1924 to February 1925 (discharge measurements only), March 

1939 to September 1948. 

Extremes.- Maximum discharge during year, 58,900 second-feet May 12 (gage height, 24.16 

feet); no flow at times. 1939-48: Maximum discharge, that of May 12, 1948; no flow at times. 

Maximum stage known, 25.5 feet in December 1913, from information by engineers of 

Texas & New Orleans Railroad. 

Remarks.- Records fair except those for period of no gage-height record, which are poor. 

No large diversion above station. 

Discharge, in second-feet, water year October 1947 to September1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

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 

00000

000000 00000 00000 00000 00. 0

0 - 14 33 628 24 12 62 68

0 49 129 8,700 24 10 51 42

0 47 144 7,310 21 8.9 45 150

0 36 163 546 19 8.1 38 88 

0 29 234 166 19 7.9 34 555

0 22 180 173 19 614 32 478

0 18 135 111 20 297 40 202

0 15 161 78 23 69 30 75

000000 00000 00000 0000000

0 14 647 64 22 I 24 23 47

0 13 248 58 22 24 20 112 

0 12 114 53 24 7,890 18 224

0 11 171 46 20 42,800 16 396

0 9.5 152 38 1,210 11,500 15 59

2.1 7.7 88 40 926 4,910 13 32 12 22 

11 18 

102 6.7 78 48 159 467 

90 6.2 64 43 54 187 

22 5.5 49 41 29 144 9.7 15 6.6 4.4 42 38 20 375 8.4 12 

3.9 5.0 38 33 16 547 7.0 11

3.9 7.0 35 31 14 358 6.2 9.1

3.8 46 33 35 12 141 5.5 7.9

3.7 84 28 836 11 107 4.7 7.0

3.7 72 24 644 9.8 83 4.4 6.1 

3.6 50 23 142 9.5 72 3.8 5.2 3.6 30 23 59 39 61 3.4 4.5 

3.4 24 24 42 485 580 3.4 3.9 

3.3 156 26 55 162 1,490 3.2 3.7 

3.3 140 99 32 50 719 7.4 3.7 

3.2 38 78 29 24 414 43 3.3 

3.1 21 24 15 107 208 2.6 

3.3 14 - 24 78 2.2 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 0.4 0.2 0 0.01 0.8 November o 0 0 0 0 December 268.5 102 0 8.66 533 _ 

Calendar year 1947 139,481.5 20,800 0 382 276,600 

January 1,007.0 156 4.4 32.5 2,000 February 3,263 647 23 113 6,470 March 20,147 8,700 24 650 39,960 April 3,502.3 1,210 9.5 117 6.950 May 74,097.9 42,800 7.9 2,390 147,000 June 778.1 208 3.2 25.9 1,540 July 2,665.2 555 2.2 86.0 5,290 August 7.1 1.8 0 .23 14 September 0 0 0 0 0 

Water year 1947-48 105,736.5 42,800 J 289 209,800 

Peak discharge (base, 12,000 sec.-ft.).- Mar. 3 (2 a.m.) 12,000 sec.-ft.; May 12 (7:30 a.m.) 56,900 sec.- . Note.- No gage-height record Dec. 14 to Jan. 5; discharge computed on basis of weather records an3-R7Cords for Cedar Creek near Mabank and Chambers Creek near Corsicana. 

905771 0 - 50 - 6 
72 SAN JACINTO RIVER BASIN 

West Fork San Jacinto River near Conroe, Tex. 

Location.- Water-stage recorder, lat. 30°15', long. 95°28' at bridge on U. $. Highway 

75, 265 feet upstream from International-Great Northern Railroad bridge, 3 miles downstream from Lake Creek, and 41- miles south of Conroe, Montgomery County. Datum of 

gage is 100.1 feet above mean sea level, datum of 1929, Galveston-Houston supplemen- tary adjustment of 1936, and Houston supplementary adjustment of 1943. 

Drainage area.- 832 square miles. 

Records available.- May 1924 to September 1927, July 1939 to September 1948. 

Average discharge.- 12 years (1924-27, 1939-48), 702 second-feet. 

Extremes.- Maximum discharge during year, 3,320 second-feet Mar. 2 (gage height, 11.28 

feet); minimum, 12 second-feet Aug. 19-24. 

1924-27, 1939-48: Maximum discharge, 110,000 second-feet Nov. 25, 1940 (gage 

height, 25.85 feet), from rating curve extended above 43,000 second-feet on basis of 

velocity-area studies; minimum, 9.3 second-feet Oct. 1, 2, 1939. 

Maximum stage prior to 1940, 25.2 feet in December 1913, present site and datum, 

at railroad bridge 285 feet downstream, from information by engineers of InternationalGreat Nerthern Railroad (discharge, 101,000 second-feet, from rating curve extended 

above 43,000 second-feet on basis of velocity-area studies). 

Remarks.- Records good except those for periods of no gage-height record, which are 

fair. No large diversion above station. 

Revisions (water years).- W 1058: 1926. 

Discharge, in second-feet. water year October 1947 to September 1948 

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 

= '8= W;',2=8 T ,',T=

=,- n 

Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

24 76 87 342 1,170 158 344 69 25 17 18 23 70 88 225 2,790 151 230 62 31 16 15 23 67 87 194 2,880 144 181 55 43 15 15 25 114 93 187 2,200 136 154 49 42 15 14 25 191 92 1841 1,280 130 134 46 51 15 14 

25 201 86 175 636 126 139 42 40 15 14 27 167 80 167 791 121 150 39 32 15 14 28 272 76 202 1,840 115 140 36 32 15 17 28 388 75 550 2,240 110 130 35 36 15 18 33 388 71 530 1,300 106 122 49 32 15 22 

47 246 70 749 795 104 128 50 28 15 25 35 196 70 1,630 742 122 211 39 30 15 23 34 326 81 a1,620 601 136 256 34 44 15 22 43 376 77 a930 414 446 256 32 33 15 20 62 392 75 a1,140 334 294 284 30 28 15 18 

57 425 76 a792 294 238 247 29 26 14 18 52 353 105 a464 274 415 165 28 24 15 20 54 438 113 a302 256 344 127 28 27 13 19 51 628 125 a239 238 188 109 27 24 13 21 50 580 393 209 230 130 95 27 22 13 19 

49 268 312 207 213 108 86 26 22 13 18 a77 166 273 572 249 96 79 26 21 13 18 a106 149 264 808 522 115 74 26 20 13 17 94 117 223 1,500 555 181 69 26 19 13 16 80 106 182 1,740 647 355 68 26 18 15 17 

87 99 155 866 584 1,500 66 25 18 17 17 99 94 174 438 349 1,340 70 25 17 20 16 103 89 246 388 238 1,230 72 24 16 16 16 94 86 246 353 204 1,160 77 24 16 15 16 83 82 342 182 782 90 23 15 21 15 31 - 82 490 168 - 81 - 18 23 

Per Runoff Second- Month Maximum Minimum Mean square foot-days mile Inches Acre-feet 

October 686 32 19 22.1 0.027 0.03 1,360 

November 1,618 106 23 53.9 .065 .07 3,210 

December 7,232 628 67 233 .280 .32 14,340 

Calendar year 1947 163,812 18,600 19 449 .540 7.32 324,900 

January 4,927 490 70 159 .191 .22 9,770 February 17,703 1,740 167 610 .733 .79 35,110 March 25,216 2,880 168 813 .977 1.13 50,020 April 10,581 1,500 96 353 .424 .47 20,990 May 4,434 344 66 143 .172 .20 8,790 June 1,057 69 23 35.2 .042 .05 2,100 July 850 51 15 27.4 .033 .04 1,690 August 475 23 13 15.3 .018 .02 942 September 532 25 14 17.7 .021 .02 1,060 

Rater year 1947-48 75,311 2,880 13 206 .248 3.36 149,400 

Peak discharge (base, 2,700 sec.-ft.).- Mar. 2 (11 p.m.) 3,310 sec.-ft 

a No gage-height record; discharge computed on basis of recorded range In stage, weather records, and records for nearby stations. 
SAW JACINTO RIVER BASIN 73 

West Fork San Jacinto River near Humble, Tex. 

Location.- Water-stage recorder, lat. 30°01,35", long. 95°15,30", at bridge on U. S. 

Highway 59, 1,160 feet upstream from Texas & New Orleans Railroad bridge, about half 

a mile downstream from Spring Creek, and 2i miles north of Humble, Harris County. 

Datum of gage is 30.53 feet above mean sea level, datum of 1929. 

Drainage area.- 1,811 square miles. 

Records available.- October 1928 to September 1948. 

Average discharge.- 20 years, 1,202 second-feet. 

Extremes.- Maximum discharge during year, 5,640 second-feet Mar. 3 (gage height, 9.27 

feet); minimum, 27 second-feet Sept. 7-9. 

1928-48: Maximum discharge, 187,000 second-feet May 31, 1929, Nov. 25, 26, 1940; 

maximum gage height, 32.7 feet May 31, 1929, Nov. 26, 1940, present site and datum 

(flood of Nov. 26, 1940, affected by backwater from East Fork and it is believed flood 

of May 31, 1929, occurred under similar conditions); minimum discharge observed 14 secsecond-feet Sept. 8-10, 1931. 

Remarks.- Records good except those subsequent to March, which are fair. No diversion 

above station. 

Revisions (water years).- W 898: 1929(M). 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

' '-—. 

F JF i ti8 —T W ,o .NN..... o., E F AM 

M

U .-L §E 'n iM t 

r.r:- ',!-:-r ''YT §IF.F. EIEFA.1M.1= iXiAii EEIU EPA

U

295 950 164 56 40 52 260 557 128 62 46 53 240 403 109 61 45 49 225 320 98 64 43 40 207 265 91 139 42 34 

199 280 89 109 41 30 182 310 83 109 40 28 

171 26S 80 98 40 27 

156 245 78 87 38 29 153 220 78 96 37 101 

235 212 87 96 36 102 

350 245 93 96 36 74 240 330 85 89 35 66 310 420 78 82 34 59 664 473 74 80 32 56 

557 467 72 74 31 50 

431 386 70 72 30 55 533 280 64 64 31 52 497 203 64 62 30 52 310 153 62 64 30 49 

230 131 53 64 30 46 182 120 52 56 29 43 274 117 50 50 29 41 392 107 50 49 29 37 398 98 50 42 32 35 

1,520 107 50 41 36 34 2,680 265 49 37 45 34 2,300 285 48 36 45 34 1,950 280 50 35 52 35 

1 67 72 96 160 2 67 67 89 167 

3 66 64 96 171 4 67 64 297 167 

5 66 62 1,020 171 

6 66 62 1,180 171 7 64 69 965 156 8 62 66 819 146 

9 62 64 965 136 10 59 66 912 134 

11 58 72 763 131 

12 58 76 587 136 13 55 76 1,210 153 14 55 83 1,260 171 15 55 83 1,430 178 

16 55 98 1,660 174 17 55 98 1,560 195 18 55 96 1,260 255 19 62 89 1,140 350 20 76 82 1,140 749

21 91 82 847 972 22 76 129 527 756 23 67 310 398 664 24 61 315 325 569 25 61 220 275 479

26 61 153 230 376 27 59 164 203 503

563 

624 28 58 174 191 29 63 139 178 30 72 109 167 631 1,610 255 53 35 46 35 31 74 167 749 199 34 49 -

Per Runoff Second- Month Maximum Minimum Mean square foot-days .ii. Inches Acre-feet . n§iM niE: M I Of 

0.04 3,910 .07 6,550 .45 43,550 

_ 2%20 _ 695,001 

.23 21,730 

October 1,973 91 55 63.6 November 3,304 315 62 110 December 21,957 1,660 89 708 

Calendhr year 1947 350,388 12,400 55 960 

January 10,957 972 131 353 February 29,751 2,740 365 1,026 March 41,736 5,160 350 1,346 .61 59,010 .86 82,780 April 17,751 2,680 153 592 35,210 May .36 8,948 950 98 289 .18 17,750 June 2,252 164 48 75.1 .05 4,470 July 2,139 139 34 69.0 .04 4,240 August 1,159 52 29 37.4 .02 2,300 September 1,432 102 27 47.7 .03 2,840 

Water year 1947-48 143,359 5,160 27 392 .216 2.94 284,300 

Peak discharge (base, 8,900 sec.-ft.).- No peak above base. 
		

"

- - - - - - - - - - - - - - - - - - - - 

- - - - - - 

74 SAN JACINTO RIVER BASIN 

San Jacinto River near Huffman, Tex. 

Location.- Water-stage recorder, lat. 29°59,40", long. 95°08,00", at Beaumont, Sour Lake & western Railway bridge, 0.4 milesdownstream from confluence of East and West Forks 

and 3.4 miles southwest of Huffman, Harris County. Datum of gage is 1.93 feet above 

mean sea level, datum of 1929. 

Drainage area.- 2,791 square miles. 

Records available.- October 1936 to September 1948. 

Average discharge.- 12 years, 2,157 second-feet. 

Extremes.- Maximum discharge during year, 5,930 second-feet Mar. 4 (gage height, 16.22 

reet); minimum, 68 second-feet about Aug. 23-25. 

1936-48: Maximum discharge observed, 253,000 second-feet Nov. 26, 1940 (gage 

height, 51.2 feet); minimum observed, 49 second-feet Sept. 1, 1939, Sept. 13, 14, 1940. 

Flood of May 31, 1929, reached a stage of 50.3 feet, from information by Beaumont, 

Sour Lake & Western Railway Co. (discharge, 237,000 second-feet). Flood of April 1876 

reached a stage about lf feet lower, from information by local resident. 

Remarks.- Records good except those above 3,000 second-feet and those for period of no 

gage-height record, which are fair. No large diversion above station. 

Discharge, in second-feet, water year October 1947 to September1948 

Day Oct. Nov. Dec Jan. Feb. Mar. Apr. May June July Aug. Sept. iE,04MUEganFEW M.q. E'EMF, —.,.; 

aT:°:- Fs.1,2H EME Mil "37'228 

g

HE .-1.-1 ._;,.4..,., ,. cs.,._ r: c° "u),(s c; " 

1 115 149 224 321 472 1,650 257 189 93 134 

428 985 226 181 98 113 407 662 199 204 92 100 

391 523 g194 221 86 93 

379 454 g179 276 90 88 

367 486 167 229 86 86 

355 508 160 218 86 85 

347 552 155 184 86 85 

347 613 151 176 86 88 

407 446 147 176 83 145 

835 428 167 174 80 202 

955 446 179 176 78 153 

674 583 162 238 77 134 

690 745 147 226 76 121 

1,160 696 138 181 74 113 

1,160 640 138 149 74 110 

1,020 523 134 147 72 113 

925 450 130 130 a72 115 

696 428 125 130 a72 117 

486 355 123 130 a71 115 

395 383 123 123 a70 110 

339 329 121 121 a70 104 

366 280 121 111 a68 97 

1,230 251 121 106 a68 92 

1,420 244 121 100 a71 90 

2,120 260 121 93 a83 86 

4,420 446 113 90 a102 88 

4,000 399 113 86 a123 85 

3,520 459 142 88 a125 86 

2,820 387 150 88 a113 86 

2 117 149 209 318

3 119 142 293 332

4 121 147 1,200 329 

5 123 140 1,930 311 

6 121 138 2,140 307 

7 121 149 1,650 297 

8 123 140 1,290 290 

9 127 140 1,360 283 

10 136 144 1,360 276 

11 130 158 1,160 270 

12 125 160 865 273 

13 121 167 2,010 329 

14 119 218 2,22C 371 

15 117 194 2,740 407 

16 117 196 2,670 407 

17 117 212 2,370 428 

18 117 226 1,790 477 

19 149 207 1,490 718 

20 142 204 1,420 1,320 

21 164 207 1,160 1,720 22 158 289 1,080 1,390 23 149 441 593 1,160 24 140 500 500 1,020 

25 134 477 454 895 

26 132 363 415 778 

27 130 311 383 985 28 127 307 363 1,230 

29 132 283 347 1,230 30 172 247 336 1,260 31 151 332 1,290 311 88 a155 

Per Runoff Second- Month Maximum Minimum Mean square foot-days mil. Inches Acre-feet 

October 4,066 172 115 131 0.047 

8 . : ci: s 8 8. 0 ,r-, 

I 1 

8,060 November 6,805 500 138 227 .081 13,500 December 36,354 2,740 209 1,173 .402 

Calendar year 1947 589,133 20,000 113 1,614 .578 

January 21,022 1,720 270 678 .243 February 57,840 5,200 734 1,994 .714 March 61,435 5,400 548 1,982 .710 April 33,131 4,420 339 1,104 .396 May 16,022 1,650 244 517 .185 June 4,524 257 113 151 .054 July 4,829 276 86 156 .056 

72,110 

1,169,000 

-'

41,700 

1 ''

114,700 

121,900 

65,710 

31,780 

8,970 

9,580 August 2,680 155 68 86.5 .031 5,320 September 3,234 202 85 108 .039 6,410 

Water year 1947-48 251,942 5,400 68 688 .247 3.34 499,700 

Peak discharge (base, 14,000 sec.-ft.).- No peak above base. 

a No gage-height record; discharge computed on basis of recorded range in stage, weather records, 

and records for nearby stations. 

g Computed from graph based on twice-daily readings of outside gage. 
-- - - 

- - - - 

SAN JACINTO RIVER BASIN 75 

Spring Creek near Spring, Tex. 

Location.- Water-stage recorder, lat. 30°06'35", long. 95°26'10", at bridge on U. S. 

Highway 75, 4,500 feet upstream from International-Great Northern Railroad bridge, 

2.4 miles northwest of Spring. Harris County, and 4 miles downstream from Willow 

Creek. Datum of gage is 78.10 feet (revised) above mean sea level, datum of 1929. 

Drainage area.- 400 square miles. 

Records available.- April 1939 to September 1948. 

Extremes.- Maximum discharge during year, 1,430 second-feet Mar. 3 (gage height, 11.00 

feet); minimum, 10 second-feet Aug. 20. 

1939-48: Maximum discharge, 42,700 second-feet Nov. 25, 1940 (gage height, 28.60 

feet, from graph based on gage readings); minimum observed, 7.7 second-feet Sept. 13, 

1940. Maximum stage known, 29.3 feet May 30, 1929, from floodmarks identified by local 

resident (discharge, 48,300 second-feet). 

Remarks.- Records good except those for period of no gage-height record and those above 

500 second-feet, which are fair. No diversion above station. 

Discharge, in second-feet. water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 18 26 26 38 86 111 52 63 30 19 a16 23 

2 18 24 25 40 72 596 52 54 28 18 a14 17 3 18 21 25 41 65 1,280 50 50 27 19 a14 16 

4 17 20 53 39 63 426 48 46 26 20 a14 17 5 17 20 242 38 70 148 48 43 25 21 a14 16 

6 

7 

8 

9 

17 

17 

17 

17 

20 

22 

21 

21 

342 

190 

109 

120 

36 

35 

34 

34 

84 

88 

89 

200 

128 

152 

148 

124 

48 

47 

46 

48 

44 

57 

55 

47 

24 

24 

24 

24 

21 

22 

28 

28 

a14 

a14 

a13 

a13 

g15 

g15 

g16 

97 10 16 22 128 34 330 136 57 44 26 36 a13 71 

11 16 28 88 34 250 144 54 43 26 28 a13 35 12 16 28 68 34 220 116 48 48 25 26 all 25 13 16 28 144 46 368 89 46 76 24 21 a12 21 14 16 26 270 54 255 77 50 85 22 19 a12 20 15 16 28 318 48 165 73 132 66 21 18 a12 18 

16 15 40 508 46 116 72 95 50 20 18 a12 17 17 15 39 402 52 94 70 63 43 20 17 a12 18 18 15 31 132 •

64 81 68 50 39 19 17 all 18 19 

20 28 

48 29 28 84 

66 79 

183 

75 

70 66 

63 46 43 37 

34 19 

18 17 

16 gll 

gll 

17 

18 

21 

22 

23 

24 

25 

30 

20 

17 

17 

17 

27 

36 

74 

73 

49 

55 

49 

45 

42 

40 

178 

128 

93 

73 

61 

69 

113 

178 

220 

192 

61 

65 

73 

132 

105 

42 

41 

46 

109 

98 

37 

41 

38 

34 

33 

18 

18 

18 

18 

18 

16 

a16 

al6 

a16 

al6 

g13 

g12 

gll 

gll 

g12 

18 

16 

16 

16 

17 

26 

27 17 

17 40 

33 38 

36 54 61 156 

132 76 

'66 414 466 65 94 18 18 a16 a16 g14 

16 16 

15 28 17 29 36 106 132 61 309 69 18 a15 16 15 29 19 27 36 132 124 58 124 48 19 a15 15 15 30 22 26 36 109 - 54 81 40 19 a15 14 16 31 26 36 98 53 - 34 a16 23 -

Month Secondfoot-days Maximum Minimum Mean Per 

square 

mile 

Runoff 

Inches Acre-feet 

+r

001~N OiM

NM +MN 

O

0.06 

.09 

.35 

6.64 

.20 

.39 

.45 

.27 

.14 

.06 

.06 

.04 

.06 

I I 

CD cnco 

r.1`8 8?),°3 8(88 '8'888

October 592 48 15 19.1 November 936 74 20 31.2 December 3,789 508 25 122 

Calendar year 1947 71,487 2,960 15 196 

January 2,102 183 34 67.8 February 4,157 368 63 143 March 4,891 1,280 53 158 April 2,853 466 41 95.1 May 1,557 94 June 33 50.2 654 30 18 21.8 July 602 36 15 19.4 August 415 23 11 13.4 September 670 97 15 22.3 

Water year 1947-48 23,218 1,280 11 63.4 .158 2.17 46,060 

Teak second-ft.). No peak above base a Nogage=heighE record; discharge computed on basis of engineer's netes, weather records, and records for nearby stations. g Computed from graph based on twice-daily gage readings. 
				

		

76 SAN JACINTO RIVER BASIN 

Cypress Creek near Westfield, Tex. 

Location.- Water-stage recorder, lat. 30°02.08", long. 95°25.43", at bridge on U. S. 

Highway 75, 0.9 mile upstream from Senger Gully, 1.8 miles northwest of Westfield, 

Harris County, 2.0 miles upstream from International-Great Northern Railroad bridge, 

and 11.0 miles upstream from mouth. Datum of gage is 75.9 feet above mean sea level, 

datum of 1929, Houston supplementary adjustment of 1943. 

Drainage area.- 262 square miles. 

Records available.- July 1944 to September 1948. 

Extremes.- Maximum discharge during year, 424 second-feet Dec. 17 (gage height, 6.95 

reetiT no flow Aug. 3-12, Aug. 18 to Sept. 5. 

1944-48: Maximum discharge, 10,700 second-feet Aug. 31, 1945 (gage height, 19.03 

feet); no flow Aug. 3-12, Aug. 18 to Sept. 5, 1948. 

Maximum stage known, about 22 feet in May 1929, from information by local resident. 

Flood of November 1940 reached a stage of about 20.2 feet, from information by State 

Highway Department. 

Remarks.- iecords good except those for period of no gage-height record, which are fair. 

No Ofversions above station. 

Discharge, in second-feet, water year October 1947 to September 1948 

Da y Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 

2 

3 

4 

a3.9 

a2.5 

al.8 

al.6 

3.1 

2.3 

1.8 

1.5 

4.2 

3.5 

3.1 

81 

5.3 

4.8 

4.5 

4.2 

35 

29 

24 

22 

53 

54 

145 

199 

3.9 

3.7 

3.5 

3.3 

17 

11 

7.7 

5.9 

8.7 

6.1 

4.7 

4.2 

2.7 

2.5 

2.0 

4.9 

0.2 

.1 

0 

0 

0 

0 

0 

0 5 a2.1 1.2 211 4.1 21 167 3.2 5.0 3.6 12 0 1.7 

6 

7 

8 

9 

10 

a3.3 

a5.3 

a5.9 

a5.2 

a3.5 

1.1 

1.0 

1.0 

1.0 

1.0 

246 

255 

246 

171 

101 

3.8 

3.8 

3.8 

3.8 

3.7 

18 

16 

18 

31 

28 

110 

58 

49 

96 

93 

3.2 

3.1 

2.9 

3.1 

48 

10 

9.2 

9.8 

8.4 

6.6 

3.0 

2.4 

2.1 

2.0 

5.3 

8.4 

5.4 

5.8 

10 

5.4 0 

0 

3.6 

2.7 

2.1 

1.8 

1.7 

11 

12 

13 

14 

15 

a2.6 

al.9 

al.5 

al.3 

al.3 

1.1 

1.2 

1.3 

1.6 

1.7 

69 

56 

242 

211 

333 

3.6 

3.7 

6.8 

7.0 

5.2 

47 

96 

101 

113 

93 

64 

57 

49 

35 

23 

235 

80 

23 

58 

98 

9.8 

15 

15 

62 

54 

2.5 

1.7 

1.5 

2.2 

2.9 

4.1 

3.7 

3.1 

2.4 

2.1 

0 

.6 

.5 

.4 

.4 

1.8 

1.6 

4.5 

5.7 

4.5 

16 

17 

18 

19 

20 

1.3 

2.8 

3.0 

3.3 

6.6 

1.8 

1.6 

3.2 

2.2 

3.0 

375 

411 

330 

184 

98 

5.6 

9.4 

8.4 

35 

98 

64 

43 

30 

21 

15 

14 68 12 26 9.8 14 8.9 9.4 8.6 6.6 

22 

13 

9.4 

6.5 

7.6 

2.2 

1.6 

1.4 

1.2 

1.1 

1.8 

2.0 

2.0 

1.6 

1.4 

.2 

.2 

.1 

0 

0 

3.7 

3.1 

3.0 

2.8 

2.3 

21 

22 

23 

24 

25 

4.2 

2.5 

2.5 

2.5 

2.1 

3.5 

21 

42 

22 

14 

58 

38 

26 

19 

14 

79 

82 

74 

55 

39 

15 

28 

26 

77 

90 

7.9 5.2 7.9 4.2 7.6 9.7 6.5 10 5.6 89 

11 

8.6 

5.6 

4.2 

4.3 

1.0 

.8 

.e 

.7 

.7 

1.3 

1.2 

1.1 

1.0 

.8 

0 

0 

0 

0 

0 

1.9 

1.6 

1.3 

1.0 

1.3 

26 

27 

28 

29 

30 

31 

1.8 

1.4 

1.2 

3.6 

5.3 

4.8 

17 

14 

9.2 

6.6 

5.0 

11 

8.9 

7.9 

6.8 

6.2 

5.7 

27 

39 

38 

25 

33 

41 

70 

60 

52 

46 

5.4 116 5.6 171 5.2 98 4.5 46 4.3 30 4.2 

43 

30 

88 

90 

42 

16 

.7 

.6 

.7 

1.2 

2.5 

.7 

.5 

.4 

.3 

.3 

.2 

0 

0 

0 

0 

0 

0 

3.8 

4.8 

5.0 

4.5 

3.7 

Month Secondfoot-days Maximum Minimum Mean Per square 

mile 

Runoff 

Inches Acre-feet 

October 92.6 6.6 1.2 2.99 0.011 0.01 184 November 188.0 42 1.0 6.27 .024 .03 373 December 3,832.3 411 3.1 124 .473 .54 7,600 

Calendar year 1947 53,282.8 1,620 .6 146 .557 7.58 105,700 

January

February 

March 

April

May

June 

756.5 1,329 

1,370.0 

1,274.0 647.6 

70.1 

98 

113 

199 

235 

90 

8.7 

3.6 

15 

4.2 

2.9 

4.2 

.6 

24.4 

45.8 

44.2 

42.5 

20.9 

2.34 

.093 

.175 

.169 

.162 

.080 

.009 

.11 

.19 

.19 

.18 

.09 

.01 

1,500 

2,640 

2,720 

2,530 

1,280 139 July

August 

September 

91.1 

2.7 

75.5 

12 .6 

5.7 

2 o 

0 

2.94 

.09 

2.52 

.011 

.0003 

.010 

.01 

.0004 

.01 

181 5.4 150 

Water year 1947-48 9,729.4 411 0 26.6 .102 1.37 19,300 Peak discharge (base, 1,000 sec.-ft.).- No peak above base.

a No gage-height record: discharge computed on basis of recorded range in stage, weather records, and records for nearby stations. 
		

				

			

		

		

SAN JACINTO RIVER BASIN 77 

East Fork San Jacinto River near Cleveland, Tex. 

Location.- Water-stage recorder, lat. 30°20', long. 95°07', at bridge on State Highway 

105, g3 feet downstream from Gulf, Colorado & Santa Fe Railway bridge, lt miles west 

of Cleveland, Liberty County, and 4 miles downstream from Nebblets Creek. Datum of 

gage is 113.0 feet above mean sea level, datum of 1929. 

Drainage area.- 330 square miles. 

Records available.- April 1939 to September 1948. 

Extremes.- Maximum discharge during year, 1,060 second-feet Apr. 27 (gage height, 5.64 

feet); minimum, 11 second-feet Aug. 20-24. 

1939-48: Maximum discharge, 77,500 second-feet Nov. 24, 1940 (gage height, 20.37 

feet), from rating curve extended above 14,000 second-feet by logarithmic plotting; 

minimum, 7.2 second-feet Sept. 6, 1939. 

Maximum stage known prior to 1940, 19.9 feet May 5, 1935, from information by 

local resident (discharge, 69,500 second-feet, from rating curve extended above 14,000 

second-feet by logarithmic plotting). 

Remarks.- Records good except those for periods of no gage-height record, which are fair. 

No large diversion above station. 

Discharge. in second-feet. water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 20 22 31 43 86 110 76 104 43 27 16 16 2 20 20 31 46 77 130 76 88 37 25 16 16 3 20 19 37 43 69 110 73 80 34 24 16 15 4 21 20 108 40 69 95 69 74 31 31 16 14 5 21 21 188 38 74 88 67 69 30 33 16 14 

6 21 21 96 37 70 80 66 95 30 29 16 14 7 20 20 76 37 65 90 65 277 27 27 14 14 8 19 24 83 38 75 170 63 134 26 28 14 14 9 19 25 113 38 149 228 72 87 26 26 14 14 10 19 24 88 38 130 312 250 79 26 27 14 19 

11 19 29 72 38 110 344 99 76 26 71 14 19 12 19 28 66 40 130 249 69 154 27 154 13 16 13 19 26 112 43 170 164 62 141 24 66 13 16 14 19 25 118 49 140 131 137 113 23 44 13 16 15 19 27 162 40 110 121 253 94 23 33 13 15 

16 19 32 147 40 100 116 333 79 22 29 12 16 17 19 29 102 54 95 113 157 69 22 26 12 18 18 17 35 74 55 88 107 87 65 21 24 12 19 19 20 49 63 60 82 104 67 92 20 29 12 19 20 19 37 56 115 78 100 59 141 19 33 12 17 

21 19 31 51 98 76 98 52 74 19 26 12 16 22 19 37 45 87 120 126 48 60 19 23 12 16 23 17 99 44 70 220 178 162 55 19 20 12 15 24 17 80 42 62 190 242 364 51 18 19 12 14 25 18 52 40 53 170 .233 354 45 18 19 12 14 

26 19 41 40 52 150 142 890 45 18 19 14 14 27 18 36 38 71 125 113 1,040 79 18 18 16 13 28 18 33 38 87 120 98 914 156 22 18 20 13 29 19 32 38 87 105 87 422 80 63 16 21 13 30 20 31 38 98 83 145 56 33 16 19 13 31 23 40 98 80 49 16 16 

Per Runoff Second - Month Maximum Minimum Mean square foot -days mile Inches Acre-feet

October 595 23 17 19.2 0.058 0.07 1,180 November 1,005 99 19 33.5 .102 .11 1,990 December 2,277 188 31 73.5 .223 .26 4,520 

Calendar year 1947 75,301 6,620 17 206 .624 8.50 149,400 

January 1,795 115 37 57.9 .175 .20 3,560 February 3,253 220 65 112 .339 .37 6,450 March 4,442 344 80 143 .433 .50 8,810 April 6,591 1,040 48 220 .667 .74 13,070 May 2,861 277 45 92.3 .280 .32 5,670 June 784 63 18 26.1 .079 .09 1,560 July 996 154 16 32.1 .097 .11 1,980 August 444 21 12 14.3 .043 .05 881 September 462 19 13 15.4 .047 .05 916 

Rater year 1947-48 25,505 1,040 12 69.7 .211 2.87 50,590 

Peak discharge ( base, 2,500 sec.-ft.- No peak above base. .) Note.- No gage-eight record Feb. 10- to Mar. 8, July 29 to Aug. 15; discharge computed on basis of wetTERWF records, discharge measurement made on Aug. 13, and records for other stations in basin. 
78 SAN JACINTO RIVER BASIN 

Peach Creek at Splendora, Tex. 

Location (revised).- Water-stage recorder, lat. 30°14', long. 95°10', at county road 

bridge between Splendora and Conroe, about 1,500 feet west of depot at Solendora, 

Montgomery County, 2.5 miles upstream from Texas & New Orleans Railroad bridge, 2.5 

miles upstream from U. S. Highway 59 bridge, 9.7 miles upstream from Caney Creek. 

Datum of gage is 86.61 feet above mean sea level, datum of 1929, Galveston-Houston 

supplementary adjustment of 1936. 

Drainage area.- 120 square miles. 

Records available.- December 1943 to September 1948. 

Extremes.- Maximum discharge during year, 341 second-feet Apr. 27 (gage height, 5.85 

feet); minimum, 9.6 second-feet Aug. 18-21. 

1943-48: Maximum discharge, 7,980 second-feet Apr. 1, 1945 (gage height, 13.85 

feet); minimum, that of Aug. 18-21, 1948. 

Maximum stage known since about 1895, 17.0 feet in November 1940, from floodmarks 

(adjusted to present site and datum), from information by local resident. 

Remarks.--Records good. No diversion above station. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

16 20 22 37 63 67 37 43 22 23 14 12 2 16 18 22 41 58 67 35 39 21 19 13 12 3 16 17 25 42 56 67 34 36 30 20 12 12 4 16 17 59 37 58 57 33 34 20 30 12 11 5 16 17 164 35 67 55 32 32 20 28 12 11 

6 16 18 123 34 67 99 31 37 19 29 12 11 7 17 18 67 33 60 94 32 77 19 22 12 10 8 16 17 65 33 63 72 31 72 19 20 12 10 9 16 19 80 33 106 88 31 44 18 19 12 12 10 17 20 72 34 113 114 52 35 19 21 12 12 

11 17 22 SO 34 87 90 77 34 22 22 12 14 12 17 24 42 34 124 65 45 60 23 21 12 14 13 16 23 106 62 144 54 37 70 21 24 11 14 14 16 22 108 54 113 50 41 56 19 21 11 13 15 16 21 152 50 82 50 56 38 18 18 11 13 

16 16 28 124 40 67 51 44 32 18 17 10 13 17 16 32 84 46 63 51 33 29 17 16 10 13 18 16 24 60 58 60 49 29 28 17 16 9.8 13 19 16 28 49 76 58 46 27 52 17 16 9.6 16 20 17 30 44 148 57 45 26 49 17 19 9.6 14 

21 18 24 42 111 60 45 25 33 17 21 9.6 14 22 18 25 40 82 107 66 24 27 17 16 9.8 13 23 16 51 38 65 126 92 132 25 17 16 9.8 12 24 16 72 37 57 220 77 217 24 16 15 9.8 12 25 16 51 36 52 164 54 152 23 16 14 11 12 

26 16 30 35 52 127 46 292 31 16 14 12 11 27 16 26 35 78 111 44 282 33 18 14 17 11 28 16 25 34 94 97 42 130 32 18 13 16 11 29 16 24 34 82 77 38 67 29 18 13 14 11 30 17 23 34 74 37 51 25 21 13 16 11 31 18 35 70 37 23 13 15 

Second- Per Ru noff Month Maximum Minimum Mean square foot-days mile Inches Acre-feet

October 508 18 16 16.4 0.137 0.16 1,010 November 786 72 17 26.2 .218 .24 1,560 December 1,918 164 22 61.9 .516 .59 3,800 

Calendar year 1947 30,176 1,660 15 82.7 .689 9.34 59,860 

January 1,778 148 33 57.4 .478 .55 3,530 February 2,655 220 56 91.6 .763 .82 5,270 March 1,909 114 37 61.6 .513 .59 3,790 April 2,135 292 24 71.2 .593 .66 4,230 May 1,202 77 23 38.8 .323 .37 2,380 June 560 23 16 18.7 .156 .17 1,110 July 583 30 13 18.8 .157 .18 1,160 August 369.0 17 9.6 11.9 .099 .11 732 September 368 16 10 12.3 .102 .11 730 

Water year 1947-48 14,771.0 292 9.6 40.4 .337 4.55 29,300 

Peak discharge (base, 900 sec.-ft.).- No peak above base. 
79 SAN JACINTO RIVER BASIN 

Caney Creek near Splendora, Tex. 

Location.- Water-stage recorder, lat. 30°16', long. 95°18', at county road bridge, 4 miles 

downstream from Gulf, Colorado & Santa Fe Railway bridge and 8 miles west of Splendors, 

Montgomery County. Datum of gage is 123.44 feet above mean sea level, datum of 1929, 

Houston supplementary adjustment of 1943. 

Drainage area.- 104 square miles. 

Records available.- January 1944 to September 1948. 

Extremes.- Maximum discharge during year, 852 second-feet Apr. 26 (gage height, 7.37 

feet); minimum, 11 second-feet Aug. 14-24, Sept. 5-8, 26-29. 

1944-48: Maximum discharge, 14,900 second-feet Apr. 1, 1945 (gage height, 18.19 

feet), from rating curve extended above 6,000 second-feet by logarithmic plotting; 

minimum, that of Aug. 14-24, Sept. 5-8, 26-29, 1948. 

Maximum stage known since about 1885, 22.0 feet in November 1940, present site and 

datum, from information by local resident. Flood of May 1935 reached a stage of 19.3 

feet, present site and datum, from information by local resident. 

Remarks.- Records good. No diversion above station. 

Discharge, in second-feet. water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 15 17 21 29 44 73 27 35 19 16 14 13 

2 15 16 22 31 40 136 27 32 19 16 14 12 

3 15 16 23 28 37 64 26 31 18 25 13 12 

4 15 17 82 27 38 46 25 29 18 24 13 1? 

5 15 16 55 26 40 41 25 28 18 23 13 12 

6 15 16 50 25 39 49 25 35 18 19 13 12 

7 15 17 44 25 38 57 25 46 18 18 13 12 

8 15 17 45 25 42 45 24 32 20 17 13 12 

9 21 17 45 25 133 47 24 28 17 17 13 13 

10 21 18 32 25 142 165 26 27 17 16 12 15 

11 17 21 29 25 66 79 26 30 17 17 12 15 

12 16 20 28 26 85 49 24 63 17 17 12 14 

13 16 18 59 31 184 42 25 74 17 17 12 14 

14 16 19 51 35 87 39 207 38 16 17 11 14 

15 16 32 62 28 60 39 74 30 16 16 11 13 

16 15 25 71 28 46 39 38 27 16 1.5 11 13 

17 15 21 48 36 42 38 29 26 16 15 11 13 

18 15 24 35 40 39 36 25 25 16 15 12 14 

19 18 24 31 46 38 35 23 25 15 16 11 14 

20 22 21 29 89 37 34 22 24 15 16 12 14 

21 17 21 28 84 41 33 21 22 15 15 12 13 

22 16 30 27 50 400 43 20 22 15 14 12 12 

23 16 56 27 41 149 79 39 22 15 14 12 12 

24 16 35 26 36 80 55 44 21 15 14 12 12 

25 16 27 26 34 69 37 72 21 15 14 13 12 

26 16 24 25 35 60 33 541 25 16 14 15 12 

27 16 23 25 42 63 32 199 33 17 14 14 11 

28 16 22 25 60 68 29 62 25 16 14 13 11 

29 16 22 25 55 57 28 45 22 17 14 13 12 

30 18 21 25 46 27 38 21 17 14 14 12 

31 20 26 44 - 28 20 14 13 

Per Runoff Second- Month Maximum Minimum Mean square foot-days mile Inches Acre-feet

October 511 22 15 16.5 0.159 0.18 1,010 

November 673 56 16 22.4 .215 .24 1,330 

December 1,147 82 21 37.0 .356 .41 2,280 

Calendar year 1947 25,270 1,810 14 69.2 .665 9.03 50,130 

January 1,177 89 25 38.0 .365 .42 2,330 

February 2,264 400 37 78.1 .751 .81 4,490 

March 1,577 165 27 50.9 .489 .56 3,130 

April 1,828 541 20 60.9 .586 .65 3,630 

May 939 74 20 30.3 .291 .34 1,860 

June 501 20 15 16.7 .161 .18 994 

July 507 25 14 16.4 .158 .18 1,010 

August 389 15 11 12.5 .120 .14 772 

September 382 15 11 12. 7 .122 .14 758 

Water year 1947-48 11,895 541 11 32.5 .312 4.25 23,590 

Peak dischargebase, 800 sec.-fti.- Apr. 26 (8 p.m.) 852 sec.-ft. 

Note.- NC gage- eight record July 6 to Aug. 16; discharge computed on basis of estimated gage 

heiall, 1 discharge measurement, weather records, and records for nearby stations. 
80 SAN JACINTO RIVER BASIN 

Barker Reservoir near Addicks, Tex. 

Location.- Water-stage recorder, lat. 29°46'05", long. 95°38'45", at dam on Buffalo Bayou 

45 feet upstream from reservoir outlet works, 1,160 feet upstream from Addicks-Howell 

county road, 1.1 miles south of Addicks, Harris County, and 1.2 miles upstream from 

South Mayde Creek. Auxiliary water-stage recorder, lat. 29°43'10", long. 95°44'00", on 

Buffalo Bayou, 2.8 miles west of Clodine, Fort Bend County, 4.8 miles (2.7 miles by reservoir) upstream from Mason Creek, 9.0 miles (6.4 miles by reservoir) upstream from reservoir outlet works. Datum of both gages is 0.3 Coot below mean sea level, datum of 

1929, Galveston-Houston supplementary adjustment and Houston supplementary adjustment of 

1943 

Drainage area.- 150 square miles at outlet works; 105 square miles at upper gage. 

Records available.- August 1945 to September 1948. 

Extremes.- Maximum gage height at dam during year, 78.8 feet Dec. 15, 16 (contents, 35 

acre-feet); maximum at upper gage, 96.2 feet Dec. 6, 7, 14-16. 

1945-48: Maximum gage height at dam, 90.4 feet Aug. 30, 1945 (contents, 11,240 acrefeet); maximum at upper gage, 98.6 feet Aug. 28, 1945. 

Maximum stage known near site of upper gage prior to construction of reservoir, 98.1 

feet in December 1935, from floodmark about 1,100 feet to right of and 1,100 feet downstream from upper gage. 

Remarks.- Reservoir is formed by rolled-fill earthen-type dam 72,844 feet long. Dam completed Feb. 3, 1946, but was first used for flood control in soring of 1945. Reservoir 

is operated for flood protection of city of Houston. It is a detention reservoir with 

no provision for permanent storage. Outlet works consist of five concrete conduits, 

four of which are uncontrolled. The middle conduit is controlled by two vertical-lift 

steel gates and remains closed except during recession of large floods or during emergencies. Capacity, 127,900 acre-feet between gage heights 75.0 feet (bottom of conduits) 

and 101.9 feet (top of design flood pool). No constructed emergency spillways; runoff 

considerably in excess of designed capacity will be discharged around ends of dam. Gage 

heights and contents not published for floods that do not produce a gage height of 82.0 

feet or higher at dam. 

Cooperation.- Capacity table furnished by Corps of Engineers. 
		

		

				

			

			

		

		

		

		

		

		

			

		

		

		

		

		

		

		

SAN JACINTO RIVER BASIN 81 

Buffalo Bayou near Addicks, Tex. 

Location (revised).- Water-stage recorder, lat. 29°45,44", long. 95°36,21" at Dairy-Ashford road bridge over rectified channel, 1.8 miles downstream from South Mayde Creek, 

2.6 miles southeast of Addicks, Harris County, 3.0 miles downstream from outlet works 

of Addicks Reservoir, and 3.2 miles downstream from outlet works of Barker Reservoir. 

Datum of gage is 0.30 foot below mean sea level, datum of 1929, Galveston-Houston 

supplementary adjustment of 1943. Feb. 2 to May 20 staff gage at same site and datum. 

Prior to Feb. 2, 1948, water-stage recorder on natural channel at site 1,200 feet to 

right and at same datum. 

Drainage area.- 310 square miles. 

Records available.- Aug. 1945 to September 1948. 

Extremes.- Maximum discharge during year, 2,070 second-feet Dec. 16 (gage height, 71.45 

ieet); no flow at times. 

1945-48: Maximum discharge, 11,200 second-feet Aug. 29, 1945 (gage height, 81.23 

feet); no flow at times during 1948. 

Maximum stage known since about 1896, 85.6 feet in December 1935 present datum, 

(adjusted to former site 1,200 feet to right of present gage, from floodmark half a 

mile downstream, on basis of slope of flood of Aug. 29, 1945), from information by 

local resident. 

Remarks.- Records poor. Flood partly regulated by Barker Reservoir (see preceding page) 

and Addicks Reservoir (see p. 83). No diversion above station. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept 

1 6 16 12 80 130 5 20 9 4 1 2 5 11 12 67 190 5 13 9 3 4 10 10 67 190 5 8 8 1 2 4 3 129 9 67 160 5 6 6 4 0 2 5 3 672 8 70 110 5 4 5 4 0 2 

6 2 761 8 72 100 5 7 4 4 0 2 7 3 621 8 74 110 S 6 3 4 0 3 8 2 635 7 72 150 5 8 3 4 0 4 9 2 663 8 72 240 5 6 10 4 0 9 10 2 551 7 72 420 5 5 18 3 0 

11 4 391 6 73 330 74 15 70 3 0 7 12 3 318 7 150 250 58 165 16 3 0 6 13 3 953 20 400 120 44 210 7 3 0 35 14 17 1,140 20 300 70 38 130 4 3 0 30 15 14 1,580 10 180 50 82 50 3 0 23 

16 13 1,880 10 100 43 60 20 2 0 19 17 12 1,360 10 70 35 38 13 2 0 17 18 10 882 20 64 30 25 180 1 0 14 19 2 6 579 100 56 27 18 165 2 o 10 20 6 4 338 400 50 23 13 250 2 0 7 

21 S 4 197 350 100 20 9 150 1 0 8 22 3 140 142 300 160 18 7 60 0 1 0 lo 23 1 356 97 200 380 16 15 25 0 1 0 4 24 303 66 130 280 14 40 10 0 1 0 3 25 241 43 90 210 12 70 14 0 1 1 6 

26 170 29 65 '190 10 110 12 0 10 40 27 100 22 150 190 9 90 35 0 34 34 28 61 18 220 160 8 60 30 0 2 25 29 38 14 180 140 7 40 10 0 19 30 23 12 150 6 30 9 0 14 31 12 110 6 9 0 

Per Runoff Second- Month Maximum Minimum Mean square foot-days mile Inches Acre-feet

October 388 60 4 12.5 0.040 0.05 770 November 1,554 356 2 51.8 .167 .19 3,080 December 14,142 1,880 10 456 1.47 1.70 28,050 

Calendar year 1947 71,145.4 1,960 2 196 .629 8.54 141,100 

January 2;637 400 6 85.1 .275 .32 5,230 February 3,956 400 506 136 .439 .47 7,850 March 2,904 420 93.7 .302 .35 5,760 April 971 110 5 32.4 .105 .12 1,930 May 1,645 250 4 53.1 .171 .20 3,260 June 197 70 01 6.23 .020 .02 371 July 74 4 2.39 .008 .01 147 August 50 34 0 1.61 .005 .01 99 September 363 40 0 12.1 .039 .04 720

Water year 1947-48 28,871 1,880 0 78.9 .255 3.48 57,270 

Note.- Stage-discharge relation indefinite Oct. 1-5, 11-19, 22-26, Jan 15 to Sept. 30 (no gage- herarrecord Jan. 15 to Feb. 1); discharge computed on basis of discharge measurements, weather 

records, and records for station at Houston. 
82 SAN JACINTO RIVER BASIN 

Buffalo Bayou at Houston, Tex. 

Location.- Water-stage recorder, lat. 29°45'42", long. 95°23'52", at Waugh Drive Bridge 

In Houston, Harris County, 0.41 mile (revised) upstream from Texas & New Orleans 

Railroad bridge, and 3.1 miles (revised) upstream from Whiteoak Bayou. Datum of gage 

is 4.08 feet below mean sea level, datum of 1929. 

Drainage area.- 362 square miles. 

Records available.- May 1936 to September 1948. 

Average discharge.- 12 years, 312 second-feet. 

Extremes.- Maximam discharge during year, 2,130 second-feet Dec. 17 (gage height, 18.26 

Feet); minimum, 3.1 second-feet Sept. 26. 

1936-48: Maximum discharge, 10,900 second-feet Aug. 30, 1945 (gage height, 34.23 

feet); minimum not determined. 

Maximum stage known, 54.4 feet Dec. 9, 1935, present site and datum, (discharge, 

40,000 second-feet, furnished by county engineer, Harris County). Flood of May 31, 

1929, reached a stage of 48.9 feet, present site and datum (discharge, 19,000 secondfeet at'bridge on Capitol Avenue, 2 miles downstream, from rating curve extended above 

15,300 second-feet, stage-discharge relation materially affected by interference of 

bridge; furnished by city of Houston). 

Remarks.- Records good. Flood flow partly regulated by Barker Reservoir (see D. 80) and 

Addicks Reservoir (see following page). No diversion above station. 

Discharge. in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug Sept. 

1 18 29 31 24 128 160 15 34 28 14 44 7.5 2 13 23 23 21 105 137 13 20 26 11 13 6.1 3 10 18 22 21 84 190 13 16 27 14 15 6.3 4 9.8 25 16 21 80 190 13 13 10 22 8.8 5.5 5 5.7 10 159 19 97 152 14 10 7.5 25 6.6 4.6 

6 18 4.0 674 17 94 106 13 45 6.6 22 6.6 5.0 7 17 696 16 87 106 14 13 7.2 22 8.2 5.7 8 13 5.2 630 15 88 153 14 19 7.2 49 6.1 7.2 9 15 4.2 674 15 78 243 14 28 6.8 19 6.1 15 10 13 9.8 630 15 84 394 12 23 13 19 6.1 9.5 

11 

12 13 

13 

73 

15 498 430 13 

37 106 204 420 340 43 

74 35 

26 22 70 9.0 

9.5 6.1 6.1 8.8 

7.5 13 9.8 20 970 58 331 214 57 69 24 19 6.3 8.2 14 

15 6.3 

4.3 90 

49 1,160 

1,510 30 

37 405 

286 111 

76 47 

74 121 

56 12 g10 8.0 g15 6.3 

6.8 34 

29 

16 

17 

18 

19 

20 

4.2 

4.5 

5.2 

66 

65 

44 

49 

60 

45 

32 

1,800 

2,060 

1,550 879 

520 

35 

34 

89 

177 

287 

178 

119 

90 

73 

62 

62 

51 

45 

41 

37 

82 

53 

38 

28 

21 

28 

14 

162 

141 

172 

6.8 

6.3 

6.8 

5.7 

5.9 

g8.2 

4.6 

5.2 

7.5 

18 

6.1 

5.7 

5.2 

4.8 

5.2 

25 

18 

18 

16 

9.8 

21 

22 

23 

24 

25 

58 

56 

43 

19 

7.4 

g24 

196 

273 

368 

305 

306 

193 

131 

95 

71 

405 

340 

260 

166 

106 

126 

137 

250 

392 

272 

35 

35 

29 

26 

24 

17 

15 

37 

38 

71 

202 

141 

62 

43 

62 

9.0 

11 

13 

6.8 

7.8 

13 

7.5 

5.5 

4.5 

4.3 

4.8 

4.6 

5.0 

14 

11 

13 

31 

9.2 

5.7 

3.7 

26 

27 

28 

29 

30 

31 

4.5 

37 

14 

14 

68 

39 

234 

138 

87 

60 

48 

56 

46 

38 

33 

29 

29 

79 

182 

227 

202 

196 

172 

220 

196 

190 

184 

-

21 

19 

15 

17 

16 

15 

48 

106 

90 

62 

33 

-

53 

112 

27 

12 

9.8 

9.0 

7.2 

6.6 

6.1 

22 

28 

-

4.6 

8.5 

6.8 

5.5 

5.7 

16 

19 

24 

34 

14 

14 

8.8 

77 

40 

39 

30 

22 

Month Secondfoot-days Maximum Minimum Mean Per 

square 

mile 

Runoff 

Inches Acre-feet 

October 683.7 68 4.2 22.1 November 2,354.2 368 4.2 78.5 December 15,959 2,060 16 515 

Calendar year 1947 89,051.4 2,710 4.2 244 

r<1,:c1,.;r).; 

ON vt t0 1 NaM .-1r~ 0000 

1,360 

4,670 

31,650 

176,600 

6,580 

9,390 

6,910 

2,320 

3,530 

January 3,316 405 13 107 February 4,736 405 62 163 March 3,482 420 15 112 April 1,169 106 12 39.0 May 1,777.8 202 9.0 57.3 June 424.3 70 5.7 14.1 July 404.9 49 4.3 13.1 August 332.3 44 4.6 10.7 September 517.3 77 3.7 17.2 1,030 

Water year 1947-48 35,156.5 2,060 3.7 96.1 .265 3.60 69,740 

g Computed from graph based on gage readings. 

842 

803 

659 
SAN JACINTO RIVER BASIN 

Addicks Reservoir near Addicks, Tex. 

Location.- Water-stage recorder, lat. 29°47'30", long. 95°37'25", at dam on South Mayde 

Creek, 65 feet upstream from reservoir outlet works, 2,700 feet upstream from U. S. 

Highway 90, 1.2 miles east of Addicks, Harris County, and 1.4 miles upstream from mouth. 

Auxiliary water-stage recorders: lat. 29°48'05", long. 95°41'30", on South Mayde Creek 

at Groeschke Road bridge, 3.2 miles west of Addicks, 4.6 miles (3.5 miles by reservoir) 

upstream from Langham Creek and 5.5 miles (4.2 miles by reservoir) upstream from reservoir outlet works; lat. 29°50'10", long. 95°37'35", on Langham Creek at Clay Road bridge, 

3.6 miles north of Addicks, 4.4 miles (2.7 miles by reservoir) upstream from mouth and 

5.3 miles (3.1 miles by reservoir) upstream from reservoir outlet works. Datum of all 

gages is mean sea level, datum of 1929, Galveston-Houston supplementary adjustment and 

the Houston supplementary adjustment of 1943. 

Drainage area.- 129 square miles at outlet works; 30 square miles at gage on South Mayde 

Creek; and 49 square miles at gage on Langham Creek. 

Records available.- June to September 1948. 

Extremes.- Maximum elevation at dam during period, 75.5 feet Aug. 25 (contents, 5 acrefeet); maximum at gage on South Mayde Creek, 101.8 feet (backwater from small dam built 

by contractor) June 14; maximum at gage on Langham Creek, 92.7 feet June 12. 

Maximum stage known, 89.9 feet in December 1935 at U. S. Highway 90 bridge, 2,700 feet 

downstream from outlet works, from information by Corps of Engineers. This flood, from 

floodmarks, from information by local residents, reached a stage of 109.3 feet, 0.2 mile 

downstream, and 0.1 mile to right of gage on South Mayde Creek; and a stage of 104.5 

feet, 1,900 feet to left and 700 feet upstream from gage on Langham Creek. 

Remarks.- Reservoir is formed by rolled-fill earthen type dam 61,166 feet long. Dam completed in fall of 1948. Reservoir is operated for flood protection of city of Houston. 

It is a detention reservoir with no provision for permanent storage. Outlet works consist of five concrete conduits, four of which are uncontrolled. The middle conduit is 

controlled by two vertical lift gates. Capacity, 186,030 acre-feet between gage heights 

73.0 feet (bottom of conduits) and 113.0 feet (top of design flood pool). No constructed 

emergency spillways; runoff considerably in excess of designed capacity will be discharged around ends of dam. Elevations and contents not published for floods that do not 

produce an elevation of 79.0 feet or higher at dam. 

Cooperation.- Capacity table furnished by Corps of Engineers. 

83 
84 SAN JACINTO RIVER BASIN 

Whiteoak Bayou at Houston, Tex. 

Location.- Water-stage recorder and concrete control (completed July 9, 1948), lat. 

29'46,31", long. 95°23,54", at Yale Street Bridge, in Houston, Harris County, 80 

feet (revised) downstream from Texas & New Orleans Railroad bridge and 2.5 miles 

(revised) upstream from Little Whiteoak Bayou. Datum of gage is 4.08 feet below mean 

sea level, datum of 1929. 

Drainage area.- 92.0 square miles. 

Records available.- May 1936 to September 1948. 

Average discharge.- 12 years, 87.8 second-feet. 

Extremes.- Maximum discharge during year, 534 second-feet Dec. 13 (gage height, 24.12 

feet]; minimum, 0.2 second-foot Aug. 15-17, 22. 

1936-48: Maximum discharge, 8,600 second-feet Nov. 2, 1943 (gage height, 42.45 

feet); minimum, 0.2 second-foot Aug. 7, 8, 1940 Aug. 15-17, 22, 1948. 

Maximum stage known, 51.5 feet Dec. 9, 1935, present datum (discharge, 14,750 second-feel, furnished by county engineer, Harris County). Discharge for flood of May 31 

May 31, 1929, 9,360 second-feet (gage height, 47.0 ± 0.5 feet, present site and datum), 

computed on basis of current-meter measurement at stage 1 foot below crest, made at 

bridge 1 block downstream from gage; furnished by city of Houston. 

Remarks.- Records good except those for periods of no gage-height record, which are fair. 

No diversion above station. 

Discharge, in second-feet. water year October1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 1.0 12 5.0 5.0 49 23 5.5 10 7.5 g5.2 9.5 1.6 

2 1.2 5.8 4.0 4.7 33 20 5.0 6.9 6.4 g5.5 1.4 1.2 

3 1.2 3.8 4.0 4.2 28 17 4.7 5.8 5.0 53.1 1.2 1.0 

4 1.0 2.9 5.4 4.0 25 13 4.4 5.2 4.0 g2.9 1.1 .9 

5 .5 2.3 287 3.8 35 14 4.4 4.4 a3.6 g3.1 1.0 .6 

6 .7 2.5 210 3.6 39 22 4.4 18 a2.9 g5.3 .9 .7 

7 .9 2.7 91 3.4 29 20 4.4 11 a2.5 g3.6 .8 .6 

8 1.0 2.3 80 3.6 26 23 5.0 11 g2.3 510 .6 .6 

9 .9 1.9 100 3.6 25 76 4.4 8.1 g3.4 2.9 .5 1.7 

10 .8 2.0 54 3.4 26 110 7.3 6.1 g3.8 1.6 .7 2.2 

11 .8 15 36 2.9 26 63 181 11 g16 1.2 .6 2.2 

12 .9 7.1 45 6.7 147 33 221 18 55.0 1.2 .5 1.6 

13 .8 5.0 456 35 159 21 61 13 g2.3 1.0 .5 1.2 

14 .7 36 405 24 88 16 78 7.2 2.1 1.0 .5 1.1 

15 1.0 25 342 14 47 14 134 5.8 1.9 1.0 .4 1.1 

16 1.0 11 335 16 31 12 66 4.4 1.6 1.0 .2 1.1 

17 1.0 8.0 167 22 24 10 37 3.4 1.5 1.0 .3 1.1 

18 1.0 13 93 28 20 9.9 25 16 1.9 1.1 .4 1.3 

19 21 9.4 56 67 17 9.3 18 54 2.0 1.1 .5 1.4 

20 5.7 7.5 39 164 16 8.4 12 7.6 1.8 1.8 .5 1.1 

21 3.4 5.7 28 113 37 8.4 9.3 4.7 1.4 6.5 .5 1.0 

22 2.0 56 21 66 32 10 7.5 4.2 1.4 2.6 .3 1.0 

23 1.5 134 17 47 62 10 29 3.6 1.9 1.4 .5 .9 

24 1.1 72 13 38 159 8.7 32 4.8 1.5 1.1 .5 .9 

25 .5 29 10 27 129 8.1 31 16 1.4 .8 1.3 .9 

26 .6 21 8.1 21 82 7.5 41 34 1.4 .6 4.3 .6 

27 .5 16 6.9 84 58 7.2 49 34 1.4 .8 3.5 .5 

28 .6 13 6.1 149 44 6.1 29 17 1.4 .6 2.8 .6 

29 24 9.3 5.2 82 30 5.5 20 13 g2.2 .6 2.4 .7 

30 281 6.6 5.0 98 5.5 16 8.7 55.7 1.1 2.2 .8 

31 50 5.2 75 5.5 7.5 4.0 1.4 

Per Runoff Second - Month Maximum Minimum Mean square foot -days Inchps Acre-feet mile 

408.9 281 0.5 13.2 0.143 0.17 811 

November 

October 536.8 134 1.9 17.9 .195 .22 1,060 

December 2,939.9 456 4.0 94.8 1.03 1.19 5,830 

.5 55.1 .599 8.14 39,900 Calendar year 1947 20,120.9 1,320 

1,218.9 164 2.9 39.3 .427 .49 2,420 

February 1,523 January 159 16 52.5 .571 .62 3,020 

March 617.1 110 5.5 19.9 .216 .25 1,220 

April 1,146.3 221 4.4 38.2 .415 .46 2,270 

May 374.4 54 3.4 12.1 .132 .15 743 

June 97.2 16 1.4 3.24 .035 .04 193 

July 74.7 10 .6 2.41 .026 .03 148 

August 41.8 9.5 .2 1.35 .015 .02 83 

September 32.2 2.2 .5 1.07 .012 .01 64 

Water year 1947-48 9,011.2 456 .2 24.6 .267 3.65 17,860 

Peak discharge (base, 820 sec.-ft.).- No peak above base. 

a No gage-height record; discharge computed from graph based on weather records. 

g Computed from graph based on gage readings. 
SAN JACINTO RIVER BASIN 85 

Brays Bayou at Houston, Tex. 

Location.- Water-stage recorder, lat. 29°42,06", long. 95°24.06", at Old Main Street 

---ITITg76 in southwest section of Houston, Harris County, three-quarters of a mile upstream from Harris Gully and about 15 miles upstream from Buffalo Bayou. Datum of 

gage is 3.90 feet below mean sea level, datum of 1929. 

Drainage area.- 100 square miles. 

Records available.- May 1936 to September 1948. 

Average discharge.- 12 years, 103 second-feet. 

Extremes.- Maximum discharge during year, 1,440 second-feet Dec. 13 (gage height, 38.44 

reet); minimum, 2.1 second-feet June 20, 26, July 30, Sept. 25, 30. 

1936-48: Maximum discharge, 8,120 second-feet Nov. 2, 1943; maximum gage height, 

51.70 feet Aug. 28, 1945; minimum discharge, 0.1 second-foot Oct. 10-13, 1937. 

Maximum discharge known, 11,095 second-feet May 31, 1929 (gage height, 50.4 feet, 

present site and datum), from current-meter measurement at Lawndale Avenue Bridge 

about 12 miles below gage; furnished by city of Houston. 

Remarks.- Records good except Caose for periods of no gage-height record, which are 

---ryri7 No diversion above station. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug Sept. 

1 3.8 5.6 10 8.0 114 48 6.9 6.6 7.7 27 60 4.4 2 3.6 4.4 10 6.8 78 39 6.6 6.2 6.8 15 20 5.8 3 3.4 4.2 9.8 6.6 64 27 6.2 6.2 5.8 7.3 11 4.2 4 a3.6 5.6 10 6.4 a57 20 6.4 5.9 6.1 7.3 7.8 3.8 5 a3.8 4.8 12 6.2 a92 33 6.4 5.6 5.3 9.9 5.6 4.6 

6 a3.9 4.4 27 6.2 al00 52 6.4 26 5.6 8.0 5.0 5.3 7 a4.2 5.4 26 3.1 a70 36 6.1 7.5 6.1 6.4 4.6 5.4 8 4.2 4.0 27 6.1 a57 48 6.2 6.9 6.2 64 4.8 5.3 9 4.0 4.4 83 5.9 a57 342 5.9 6.9 7.1 55 5.4 14 10 4.2 5.3 5.6 5.9 a63 288 5.8 6.8 9.9 30 5.0 8.0 

11 4.4 80 88 5.8 a77 119 5.8 24 75 13 4.5 4.6 12 4.0 20 97 14 a100 65 5.9 11 36 8.8 4.4 4.4 13 3.9 15 1,190 57 a186 42 7.3 8.2 16 8.6 4.4 4.4 14 3.9 76 584 30 a354 29 10 53 10 6.8 4.4 4.4 15 4.0 51 881 16 a175 23 5.9 39 7.3 7.1 4.5 4.4 

16 4.4 23 554 25 a92 20 5.9 15 7.1 6.8 5.3 3.9 17 4.0 18 263 32 a57 16 5.8 9.2 5.8 6.9 5.8 3.9 18 4.4 65 144 29 a36 13 5.6 130 5.1 6.2 4.6 3.8 19 25 40 80 261 30 12 5.6 256 4.6 6.4 4.5 3.6 20 6.6 15 54 471 25 11 6.1 93 3.9 13 5.1 4.0 

21 5.3 9.8 37 214 227 10 6.4 27 5.0 5.5 5.0 4.5 22 5.4 276 27 116 484 13 . 6.2 13 4.0 5.0 4.5 4.0 23 5.8 472 20 90 348 10 11 8.4 5.1 6.1 7.5 3.9 24 7.8 160 15 77 649 9.2 8.4 7.1 4.2 5.0 12 3.8 25 6.4 74 11 58 341 8.4 23 25 4.2 4.2 8.9 5.2 

26 6.2 49 9.4 53 208 8.4 9.7 44 3.9 4.4 8.6 5.1 27 5.1 33 8.6 365 135 8.0 6.8 61 4.5 4.0 9.4 5.1 28 4.2 22 7.8 322 89 7.5 6.6 14 4.6 4.4 6.4 4.4 29 76 15 7.5 220 61 7.3 6.6 8.2 13 3.9 5.1 4.2 30 32 12 7.5 308 - 7.1 6.4 8.2 25 4.6 5.0 3.4 31 9.4 - 8.4 206 7.3 8.6 13 4.8 

Per Runoff Second- Month Maximum Minimum Mean square foot-days mile Inches Acre-feet

October 266.9 76 3.4 8.61 0.086 0.10 529 November 1,573.9 472 4.0 52.5 .525 .59 3,120 December 4,365 1,190 7.5 141 1.41 1.62 8,660 

Calendar year 1947 29,836.2 2,350 3.4 81.7 .817 11.09 59,180 

January 3,034.0 471 5.8 97.9 .979 1.13 6,020 February 4,426 649 25 153 1.53 1.65 8,780 March 1,379.2 342 7.1 44.5 .445 .51 2,740 April 217.9 23 5.6 7.26 .073 .08 432 May 947.5 256 5.6 30.6 .306 .35 1,880 June 310.9 75 3.9 10.4 .104 .12 617 July 373.6 64 3.9 12.1 .121 .14 741 August 253.9 60 4.4 8.19 .082 .09 504 September 146.0 14 3.4 4.87 .049 .05 290 

Water year 1947-48 17,294.8 1,190 3.4 47.3 .473 6.43 34,310 

Pe_ak.dlschargge base, 1 300 .- Dec. 13 (10 a.m. 1,440 sec.-ft. a No gage-heikh record; discharge interpolated, or computed on basis of recorded range in stage, weather records, and records for stations on nearby streams. 
86 CLEAR CREEK BASIN 

Clear Creek near Pearland, Tex. 

Location.- Water-stage recorder, lat. 29°35'50", long. 95°17'12", at bridge on State 

Highway 35, 0.8 mile downstream from Gulf, Colorado & Santa Fe Hallway bridge, about 

1 mile above Hickory Slough, and 2.3 miles north of Pearland, Brazoria County. Datum 

of gage is 35.73 feet above mean sea level, datum of 1929, Houston suoolementary ad- justment of 1943. Prior to June 9. 1948, staff gage at same site and datum. 

Records available.- July to October 1944, March to October 1946, Aoril 1947 to September 

1948. 

Extremes.- Maximum discharge during year, 551 second-feet Feb. 24 (gage height, 7.94 feet, 

rrom graph based on gage readings): no flow at times. 

1944, 1946, 1947-48: Maximum discharge not determines, no flow at times. 

Remarks.- Records good except those above 300 second-feet, which are fair. Staff gage 

read twice daily. Large area of rice land above station is irrigated with water from 

Brazos River. Low flow is largely drainage from irrigated lands. Diversions for irrigation above station. 

. Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 16 3.7 2.8 2.4 67 39 1.0 9:5 6.7 17 1.5 4. 

2 17 1.7 2.2 1.8 48 28 .8 4.5 4.2 8.8 .3 3 17 1.1 2.8 1.5 49 18 .8 4.7 7.1 13 .3 4.1 

4 17 .8 4.2 1.3 54 12 .8 3.5 9.5 12 .2 8.. 

5 19 .5 5.2 1.3 54 11 .8 1.6 16 32 1.0 9.3 

6 18 .3 4.8 1.0 39 26 .8 12 4.3 34 .4 8.1 

7 17 .3 4.2 1.0 30 21 .B 26 8.8 22 .3 2.8 

8 16 .5 4.0 1.0 26 34 .5 15 9.5 18 .3 3.1 9 23 .3 3.0 1.0 £7 lt. .4 1.6 2.5 15 .4 C4 10 '1 .3 3.3 1.0 22 173 .5 3.5 6.6 11 .4 71 

11 19 3.2 3.8 1.0 20 94 .4 3.6 14 9.2 .3 49 

12 19 1.9 14 1.1 67 47 .4 12 11 4.8 .3 37 13 22 1.3 154 2.0 88 29 .5 22 11 6.3 .3 29 

14 30 9.7 111 1.5 65 18 .8 59 13 6.2 .2 22 15 ,6 18 223 1.3 41 15 .6 59 7.5 6.4 .1 20 

16 23 9.8 134 1.5 30 12 .4 28 5.3 4.8 0 18 

17 21 5.7 82 2.9 22 8.9 .5 13 2.6 3.0 0 15 

18 20 5.4 52 7.1 18 6.4 .7 5.3 .2 2.7 .2 12 

19 30 5.4 35 74 15 5.2 .7 3.9 .2 1.1 .3 10 

20 33 3.6 25 130 12 3.9 .5 1.9 .1 2.2 .2 8.5 

21 35 7.4 18 85 76 3.2 2.4 4.? .3 10 .2 5.8 

22 74 8.3 13 51 179 3.2 4.8 2.1 .3 2.9 0 4.1 

23 13 49 9.8 35 114 2.9 8.4 .3 .1 .3 0 4.2 

24 14 37 6.9 26 447 2.0 8.7 .7 .1 .3 .1 8.9 

25 12 22 4.7 20 327 1.7 7.5 60 .1 .2 2.0 8.2 

26 7.5 19 3.9 21 214 1.7 16 155 1.2 .1 4.3 6.8 

27 5.9 15 2.9 63 134 1.6 18 169 .1 0 9.5 4.0 

28 4.3 11 2.1 77 85 1.3 21 53 .1 0 8.7 3.0 

29 2.1 6.2 1.9 71 52 1.2 14 26 1.2 0 11 5.6 

6.9 

31 5., - 2.1 96 - 1.1 8.7 .2 5.4 30 6.3 3.9 1.6 130 1.1 6.9 14 5.6 0 8.3 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 553.3 35 2.1 17.8 1,10" 

November 246.3 49 .3 8.21 489 

December 938.0 223 1.6 30.3 1,86( _ Calendar year - - - - -

January 905.7 130 1.0 29.2 1,800 February 2,422 447 12 83.5 4,800 March 811.4 189 1.1 26.2 1,610 April 120.4 21 .4 4.01 239 May 788.6 169 .3 25.4 1,560 June 149.2 16 .1 4.97 296 July 244.5 34 0 7.89 485 August 56.5 11 0 1.82 112 September 456.0 71 2.8 15.2 904 

Water year 1947-48 7,691.9 447 0 21.0 15,260 

Peak lischarge (base, 600 sec.-ft.).- No peak above base. 
-- 

CLEAR CREEK BASIN 87

Hickory Slough near Pearland, Tex. 

Location (revised).- Staff gage, lat. 29°34,47", long. 95°17,40", at county road bridge, 

0.2 mile upstream from Gulf, Colorado & Santa Fe Railway bridge, 1.2 miles north of 

Pearland, Brazoria County, and 1.9 miles upstream from mouth. Datum of gage is 42.14 

feet above mean sea level, datum of 1929, Houston supplementary ad,)ustment of 1943. 

Prior to Apr. 8, 1948, at datum 2.50 feet higher. 

Records available.- July to October 1944, March to October 1946, April to October 1947, 

April to September 1948. 

Extremes.- Maximum discharge during period not determined; no flow at times. 

1944, 1946-48: Maximum discharge not determined; no flow at times. 

Remarks.- Records good below 10 second-feet, fair above. Gage read twice daily. Large 

area of rice land above station is irrigated with water from Brazos River. Low flow 

is largely drainage from irrigated lands. Diversions for irrigation above station. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 0.2 - 5.9 6.4 4.9 0.4 1.7 2 .2 - 1.5 3.0 2.3 .4 1.5 3 4.3 - .4 .8 7.9 .2 1.1 4 5.5 - .4 .9 7,3 0 .7 5 3.4 - .6 1.1 9.6 0 .4 

6 1.6 - 5.3 1.3 17 .4 .6 7 .8 - 7.1 .8 8.6 .4 1.7 8 .6 0.3 .3 .6 3.2 .6 1.7 9 .7 .3 .5 0 1.2 1.1 10 .5 .3 .6 2.5 .4 1.5 M 

11 5.3 0 1.9 7.3 4.2 1.1 22 12 6.5 0 5.3 4.3 2.4 .4 15 13 6.2 .2 3.9 1.1 1.8 0 9.2 14 6.0 .4 16 5.8 1.0 0 4.3 15 5.5 .1 15 8.9 1.3 0 .8 

16 5.3 0 8.9 3.3 1.1 0 1.2 17 6.8 .1 5.9 2.8 .4 .3 3.4 18 6.8 .1 5.7 3.8 .9 1.2 3.1 19 8.0 .1 8.9 4.3 1.4 .9 2.8 20 3.7 .9 3.8 4.0 1.4 .8 2.8 

21 1.7 2.0 .8 3.2 3.6 .4 3.6 22 1.7 1.3 4.3 3.8 3.2 .3 3.7 23 .9 1.9 8.7 4.0 5.4 0 3.0 24 .1 3.4 3.0 2.5 2.8 .3 2.8 250 4.7 (e) 1.7 2.0 (e) 3.6 

26 0 12 e 1.4 1.2 2.8 27 1.4 6.4 1.1 .5 M 3.1 28 0 5.1 1.1 .2 4.0 2.6 29 0 8.1 18 1.7 1.6 3.7 2.5 30 0 5.3 10 2.5 .4 2.6 1.9 31 0 11 - .1 1.7 -

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 83.7 8.0 0 2.70 16r November _ December _ _ _ _ _ 

Calendar year _ - - - - . - _ _ _ January - - - - February _ - - - March - _ - - - April 8-30 53.0 12 0 2.30 105 May - .3 - - June 86.0 8.9 0 2.87 171 July 99.3 17 .1 3.20 197 August - _ 0 _ - September - _ .4 

c Stage above limits of rating; discharge not computed. 

Water year - --

905771 0 - 50 - 7 
88 CHOCOLATE BAYOU BASIN 

Chocolate Bayou near Alvin, Tex. 

Location.- Saff gage, lat. 29°22'19", long. 95°19'14", at Rosharon-Alvin county road 

bridge, 5/ miles southwest of Alvin, Brazoria County and 6/ miles upstream from State 

Highway 35. 

Records available.- August to October 1944, March 1946 to September 1948 

Extremes.- Maximum discharge during year, 1,080 second-feet Feb. 25 (gage height, 14.76 

reet); minimum observed, 1.8 second-feet Nov. 10. 

1944, 1946, 1947-48: Maximum discharge not determined; minimum observed, 1.0 second-foot Oct. 31, 1944. 

Remarks.- Records good. Gage read twice daily. Large area of rice land above station is 

Irrigated with water from Brazos River. Low flow is largely drainage from the irri- gated lands. Diversions for irrigation above station. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 54 12 5.9 6.8 173 83 5.4 36 79 54 44 70 

2 82 9.6 4.7 5.4 164 61 5.4 50 68 53 46 61 3 81 5.7 5.6 4.9 248 46 5.3 72 68 68 41 56 4 72 4.6 7.8 4.5 296 33 4.6 72 70 83 40 61 5 74 4.3 10 4.2 272 39 4.0 72 74 115 38 68 

6 74 4.2 12 4.5 180 118 4.0 95 a81 95 39 72 

7 72 3.3 alO 4.5 112 83 4.6 82 90 70 40 76 

8 68 9.7 9.6 4.2 92 27 4.3 39 72 58 a42 81 9 63 a2.0 8.6 4.2 79 257 3.5 38 61 52 a40 167 10 55 1.8 11 4.7 61 524 3.8 38 63 42 a38 371 

11 51 3.8 18 4.2 50 421 3.8 37 119 32 a37 416 12 43 5.7 33 3.6 96 157 3.8 63 105 49 a37 344 13 38 6.4 262 4.3 199 76 4.5 45 88 72 a34 213 14 36 14 398 4.7 173 52 4.9 56 74 72 33 124 15 a37 23 407 4.7 0124 39 4.9 178 54 68 a34 90 

16 40 20 380 4.9 78 33 4.3 93 50 54 34 72 

17 38 13 286 6.0 53 29 4.3 42 53 58 37 72 

18 46 12 122 14 41 23 3.8 41 47 68 42 86 

19 51 12 70 77 33 18 5.4 46 40 74 41 88 

20 48 8.0 41 203 28 16 11 45 38 74 40 86 

21 46 7.2 a24 241 100 18 13 40 36 72 35 88 

22 43 14 23 175 634 14 18 30 36 72 32 90 

23 29 65 19 105 780 13 19 34 36 68 33 98 

24 21 72 16 88 980 10 25 40 32 58 56 102 

25 19 38 a13 70 927 8.8 34 61 38 52 79 110 

26 16 29 810 77 648 8.8 52 204 38 54 68 115 

27 13 27 8.4 138 412 8.0 38 304 33 56 68 137 /8 13 20 6.8 161 222 6.6 28 312 30 48 88 179 

29 13 11 5.7 140 112 5.7 35 227 34 41 86 155 

30 14 7.8 5.4 253 5.4 44 a185 50 41 72 131 

31 15 - 5.4 266 - 5.4 - 129 41 58 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 1,365 82 13 44.0 2,710 

November 459.1 72 1.8 15.3 911 

December 2,237.9 407 4.7 72.2 4,440 

Calendar year 1947 . 35,185.5 1,120. 1.8 96.4 69,790 -

January 2,088.3 266 3.6 67.4 4,140 February 7,567 980 28 254 14,610 March 2,238.7 524 5.4 72.2 4,440 April 401.6 52 3.5 13.4 797 May 2,806 312 30 90.5 5,570 

June 1,757 119 30 58.6 3,480 July 1,914 115 32 61.7 3,800 August 1,452 88 32 46.8 2,880 September 3,881 416 56 129 7,700 

Water year 1947-48 27,967.6 980 1.8 76.4 55,480 

Peek discharge (base, 800 sec.-ft.),- Feb. 25 (7:40 a.m.) 1,080 sec.-ft. a No gage-heightrecord; discharge computed on basis of estimated gage heights, weather records, and records for nearby stations. 
OYSTER CREEK BASIN 89 

Oyster Creek near Angleton, Tex. 

Location.- W4ter-stage recorder, lat. 29°09'25", long. 95°28'35", at bridge on State Highway 3b, 2 miles west of Atlgleton, Brazoria County, 4.0 miles upstream from Missouri 

Pacific Railroad bridge, 4/ miles downstream from another Missouri Pacific Railroad 

bridge, and about 45 miles upstream from mouth at Gulf of Mexico. Datum of gage is 1.31 

feet below mean sea level, datum of 1929. 

Records available.- October 1944 to September 1948. 

Extremes.- Maximum discharge during year, 643 second-feet Feb. 25 (gage height, 17.70 feet); 

minimum, 5.4 second-feet Sept. 15. 

1944-48: Maximum discharge, 2,230 second-feet Nov. 7, 1946 (gage height, 26.25 feet); 

minimum, that of Sept. 15, 1948. 

Flood of December 1913 reached a stage of about 32 feet, from information by State 

Highway Department; flood of Dec. 5, 1940, reached a stage of 30.7 feet, from levels to 

floodmark on bridge to which gage is attached. At extreme high stages the Brazos River 

overflows into Oyster Creek above this station and there may be some relation between 

stage of Brazos River at East Columbia and stage at this station. 

Remarks.- Records good except those for periods of no gage-height record, which are fair. 

Diversions above station for irrigation. A large part of low flow at this station is 

water released from Harris Reservoir for industrial use below station. Harris Reservoir 

is supplied with water diverted from Brazos River during periods of flood flow. 

Cooperation.- Five discharge measurements furnished by Dow Chemical Co. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 31 24 21 128 299 80 27 25 39 43 20 

2 30 24 21 128 252 76 35 22 36 50 20 

3 32 24 20 213 220 74 35 23 32 40 20 

4 34 25 21 246 188 72 35 22 32 31 26 5 34 29 24 220 175 71 35 22 35 31 33 

6 32 25 32 175 156 71 35 23 34 30 32 

7 32 24 34 162 134 71 35 25 35 29 30 8 31 24 35 162 131 71 31 53 37 29 29 9 

10 30 

30 24 

74 34 33 150 

134 191 312 

71 

70 29 29 47 30 37 35 

27 

27 46 

85 

11 

12 

13 

14 

15 

29 

29 

'9 

31 

3' 

24 

24 

25 

76 

25 

3, 

32 

31 

31 

31 

125 

128 

146 

156 

150 

325 

299 

259 

213 

181 

68 

68 

70 

88 

76 

30 

37 

37 

33 

33 

29 

31 

30 

29 

29 

32 

33 

40 

38 

34 

26 

26 

26 

27 

31 

61 

27 

16 

9.8 

6.6 

16 3' 25 3' 137 146 72 37 27 31 32 19 

17 

18 

19 

31 

3' 

32 

25 

25 

26 

33 

33 

62 

128 

122 

116 

125 

106 

91 

68 

65 

63 

38 

39 

40 

27 

27 

27 

29 

28 

28 

35 

38 

40 

35 

40 

40 

20 3. 26 134 109 76 46 30 29 28 . 40 34 

21 

22 

23 

24 

25 

31 

29 

27 

27 

27 

26 

29 

35 

26 

25 

103 

68 

50 

43 

38 

139 

325 

406 

598 

634 

67 

58 

51 

48 

43 

44 

41 

41 

38 

39 

24 

32 

39 

37 

36 

29 

29 

29 

29 

29 

29 

31 

34 

38 

36 

40 

40 

40 

44 

47 

32 

26 

20 

18 

18 

26 26 30 27 26 29 28 26 29 29 26 28 30 25 78 31 25 -

4' ` ZZ ,"srcti 

35 548 41 42 36 27 34 53 17 

53 484 64 33 36 27 32 46 16 

79 419 82 22 33 29 31 37 16 

75 351 85 18 31 34 31 35 16 

140 82 17 29 37 32 35 16 

156 - 82 - 28 - 35 27 -

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 920 34 25 29.7 1,820 November 782 35 24 26.1 1,550 December 1,747 207 22 56.4 3,470 

Calendar year 1947 33,648 1,140 16 92.2 66,750 

January 1,566 156 20 50.5 3,110 February 6,939 634 309 239 13,760 March 4,582 325 41 148 9,090 April 1,746 88 17 58.2 3,460 Kay 1,041 40 24 33.6 2,060 June 876 53 22 29.2 1,740 July 1,036 40 28 33.4 2,050 August 1,102 53 26 35.5 2,190 September 824.4 85 6.6 27.5 1,640 

Water year 1947-48 23,161.4 634 6.6 63.3 45,940 

Note.- No gage-height record Nov. 12, 13, Dec. 29 to Jan. 7, Jan. 9-16, Aug. 5-12; discharge com- pure-3-3n basis of recorded range in stage, weather records, and record of water delivered to Oyster 

Bayou from Harris Reservoir. 
		

				

		

		

		

		

		

		

				

		

		

				

90 BRAZOS RIVER BASIN 

Double Mountain Fork Brazos River at Lubbock, Tex. 

Location.- Water-stage recorder and masonry control, lat. 33°35'05", long. 101°49'40", In 

MacKenzie State Park in Lubbock, Lubbock County, 1.9 miles downstream from Yellowhouse 

Creek. Datum of gage is 3,132.7 feet above mean sea level, datum of 1929. 

Records available.- September 1939 to September 1948. 

Extremes.- No now during year. 

1999-48: Maximum discharge, 892 second-feet June 6, 1941 (gage height, 6.73 feet), 

from rating curve extended above 120 second-feet on basis of slope-area determination at 

gage height 6.72 feet; no flow most of time. 

No flow since May 24, 1947. 

Remarks.- No flow since May 24, 1947. Station is located in small pool (capacity, 29.5 

acre-feet). Figures of daily discharge represent inflow into pool computed on basis of 

outflow and change in contents with no correction for evaporation, transpiration, or 

seepage. Several dams form small pools above station which affect low flow. Figures for 

calendar year 1947 are as follows: total second-foot-days, 2.3; maximum daily, 2.3 sec- ond-feet; minimum daily, no flow; mean, 0.01 second-foot; runoff, 4.6 acre-feet. 

Double Mountain Fork Brazos River near Aspermont, Tex. 

Location.- Water-stage recorder and wire-weight gage, lat. 33°00'. long. 100°11', at 

bridge on U. F. Highway 83, 8 miles downstream from Mountain Creek and 10 miles south 

of Aspermont, Stonewall County. 

Drainage area.- 7,979 square miles, of which 6,470 square miles is probably noncontributing. 

Records available.- December 1923 to September 1934, June 1939 to September 1948. 

Average discharge.- 19 years (1924-34, 1939-48), 175 second-feet. 

Extremes.- Maxaum discharge during year, 22,200 second-feet June 24 (gage height, 10.20 

feet); no flow at times. 

1924-34, 1939-48: Maximum discharge, 52,000 second-feet Oct. 15, 1926 (gage height, 

18 14 feet, from floodmark), by slope-area method; no flow at times. 

Remarks.- Records poor. Daily discharge published only to show distribution of runoff. No 

large diversion above station. 

Revisions (water years).- W 733: 1927(M). 

Ischar _ e in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

23 0 

13 .4 .2 .3 

4.0Mor2, .f W'w M M M W ,, MO GI N J.MN..M M OM 0 .• 000000 00000 OMW N M OW NN 

1 0 1.2 16 161 

2 0 1.1 0.8 9.9 457 

3 0 1.0 94 173 

4 0 .9 .5 270 100 

5 7 .8 .5 [ 3,840 58 

7.2 .6 .4 849 27 

8 0 .5 .4 221 20 

9 256 .5 . 6 147 16 

10 66 .4 6.9 76 201 

11 10 .4 52 173 

12 1.6 .3 .3 f41 98 

14 .4 29 52 28 

15 .4 2.0 .3 70 15 

16 .4 1.7 52 8.3 

17 .3 13 .2 2.2 0 68 39 4.8 

18 .3 99 .2 2.1 0 30 32 2.6 

19 .2 *13 .2 2.0 .1 12 23 1.8 

20 .2 1.8 .2 17 1.0 

21 .2 30 .2 .2 13 .4 

22 .2 3.6 .2 9.9 .3 

.1 1.0 .2 4,6704,350 .2 

24 .7 .2 594 .1 

25 217 .5 .2 228 0 

26 60 .4 .2 98 0 

27 5.0 .3 .2 4,600 .3 0 184 56 0 

28 1.8 .3 .2 35 0 

29 1.5 .3 .2 33 .4 

30 1.4 .3 .2 58 782 

31 1.3 .2 39 232 

.7 6,270 39 

N 0 00WMOM 00000 00000 000 00000 00000 

33 52 

......NM 1 00000 00000 00000 00000 

 ,, z, ,c

: r,O MM M 

Month Second- Maximum Minimum Mean Runoff in 

foot-days acre-feet 

April 4.0 .2 0 

October 625.6 256 0 20.2 1,240 November 205.5 99 .2 6.85 408 

December 2,705.6 1,290 .2' 87.3 5,370 

Calendar year 1947 65,446.9 14,800 0 179 129,800 

January 10.1 - .2 .33 20 

February 5,136.4 4,600 - 177 10,190 

March 333.5 92.2 10.8 661 

May 1,802.3 1,620 0 58.1 3,570 

June 12,127.6 4,970 .7 404 24,050 

July 17,717.8 6,270 9.9 572 35,140 

August 2,651.9 782 0 85.5 5,260 

September 130.4 68 0 4.35 259 

_ 

.13 7.9 

Water year 1947-48 43,450.7 6,270 0 119 86,180 

Peak discharge (base, 8,800 sec.-ft.).- Feb. 27 (8 a.m.) 11,300 sec.-ft.; May 31 (8 p.m.)9,400 

sec.-ft.; June 24 (12:15 a.m.) 22,200 sec.-ft.; July 5 (9:30 p.m.) 18,300 sec.-ft.; July 23 (3:15 

p.m.) 12,000 sec.-ft. f Computed on basis of partly estimated gage height. Note.- Flowing channel removed from recorder and no gage-height record Oct. 1-3, 12-24, Oct. 27 tom. 17, Nov. 20 to Dec. 3, Dec. 9-18, Dec. 20 to Feb. 2, Feb. 4-26, Mar. 1-7, June 3-6, 19-21, 

June 29 to July 2, July 15, 16; discharge computed on basis of engineer's notes, weather records, 

and records for station Salt Fork Brazos River near Aspermont. 
BRAZOS RIVER BASIN 91 

Brazos River at Seymour, Tex. 

Location.- Water-stage recorder and wire-weight gage, lat. 33°34', long. 99°16', at bridge 

on U. S. Highways 277 and 283, three-quarters of a mile upstream from Wichita Valley 

Railway bridge and 1 mile southwest of courthouse in Seymour, Baylor County. Datum of 

gage is 1,258.7 feet above mean sea level (Texas State Highway bench mark). 

Drainage area.- 14,490 square miles, of which 9,240 square miles is probably noncontributing 

Records available.- November 1923 to September 1948. 

Average discharge.- 24 years (1924-48), 459 second-feet. 

Extremes.- Maximum discharge during year, 13,300 second-feet July 6 (gage height, 7.14 

reet); no flow at times. 

1923-48: Maximum discharge, 95,400 second-feet Oct. 16, 1926 (gage height, 15.16 

feet, from floodmarks), by slope-area method; no flow at times. 

Maximum stage known, about 21.0 feet, sometime prior to 1916. 

Remarks.- Records poor. No large diversions above station. 

Revisions (water years).- W 808: 1924-29. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 0 25 24 21 16 796 5.7 0.7 502 1,060 75 2 0 19 22 55 18 534 6.4 .1 1,960 584 1103 11, 3 0 16 37 25 14 353 6.4 0 1,350 441 35,2 70 

4 0 11 1,170 24 11 238 5.7 0 765 1339 388 44 5 0 8.5 1,770 21 18 185 4.6 0 467 11,17, 211 32 

6 0 6.4 1,350 18 04 156 4.6 0 311 5,420 1141 27 7 0 2.9 760 17 23 124 3.8 0 a166 6,320 98 15 8 3.8 1.8 572 17 25 107 2.6 C 99 2,200 77 110 9 53 1.4 425 14 21 88 3.0 0 75 1,030 1105 13 10 31 .9 329 14 22 75 5.7 0 54 662 230 9.3 

11 32 .5 265 14 17 73 3.0 .2 40 651 1140 5.0 12 17 .4 216 11 9.9 68 1.8 .5 93 361 55 3.0 13 45 1.3 142 11 11 63 .9 .1 48 275 159 4.9 14 46 92 116 9.9 18 58 1.8 0 40 187 98 5.4 15 29 68 95 11 25 47 1.8 8.8 20 141 72 2.8 

16 27 63 81 9.2 17 36 1.0 9.7 220 118 66 1.8 17 20 51 68 6.4 11 34 1.4 3.8 149 131 148 1.0 18 11 96 60 8.5 9.2 35 2.2 2.2 65 120 40 .7 

19 5.0 116 54 9.9 5.7 32 .9 11 49 95 30 .4 20 2.2 169 47 9.9 3.8 28 .7 1.4 70 78 22 0 

21 .7 250 41 8.5 2.2 32 .7 20 52 66 15 10 22 0 323 38 5.0 2.6 30 .8 49 36 52 111 3.2 23 0 184 34 11 2.6 23 3.8 23 277 404 110 3.4 24 116 76 31 12 4.2 20 • 12 13 2,360 3.710 13.8 1.4 25 19.1 56 29 13 13 17 20 16 5,950 1,180 4.6 0 

26 154 51 28 12 37 12 14 96 1,340 691 3.8 0 27 270 42 26 6.4 157 9.9 11 893 795 523 2.8 0 28 198 35 25 4.6 3,260 11 5.7 253 4,920 264 2.6 0 29 103 30 24 5.7 1,250 11 3.8 99 8,800 183 2.8 0 

30 61 25 19 9.9 - 9.9 2.2 64 3,760 118 12 0 31 41 - 17 11 - 5.0 - 71 83 14 -

-

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 1,074.8 270 0 34.7 2,130 November 1,821.4 323 .4 60.7 3,610 December 7,415 1,350 17 239 14,720 

- Calendar year 1947 181,200.1 43,700 0 496 359,400 - January 425.9 55 4.6 13.7 845 February 5,048.2 3,260 2.2 174 10,010 March 3,310.8 796 5.0 107 6,570 April 138.0 20 .7 4.60 274 May 1,635.5 893 0 52.8 3,240 June 34,833 8,800 20 1,161 69,090 July 28,657 6,320 52 924 56,840 August 2,490.4 388 2.6 80.3 4,940 September 402.3 112 0 13.4 798 

Water year 1947-48 87,252.3 8,800 0 238 173,100

Peak discharge tbase 11000 sec.-ft.).- June 25 (3:30 a.m.) 10,800 sec.-ft ; June 29 (4:30 a.m.) 11,800 sec.-1t; Judy 6 ( 1 i p.m.) 13,300 sec.-ft. . a No gage-height record; discharge computed on basis of estimated gage height. f Computed on basis of partly estimated gage-height record.

Note.- Discharge for Dec. 11-22, Dec. 30 to Jan. 1, Jan. 15 to Feb. 2, Feb. 7-9, 12, 13, Mar. 5- 1773Try 28 to Aug. 1, Aug. 7, 8, 12, 15, 16, Sept. 4-7, 20 computed from graph based on twicedaily reading. of wire-weight gage. 
92 BRAZOS RIVER BASIN 

Brazos River neat South Bend, Tex. 

Location.- Water-stage recorder and wire-weight gage, lat. 33°01'30", long. 98°38'50", at 

bridge on State Highway 67, 0.3 mile upstream from Wichita Falls & Southern Railroad 

bridge, 1.6 miles downstream from Clear Fork Brazos River, and 2.0 miles northeast of 

South Bend, Young County. Datum of gage is 1,003.0 feet above mean sea level, datum of 

1929. 

Drainage area.- 21,600 square miles, of which 9,240 square miles is probably noncontri- buting. 

Records available.- September 1938 to September 1948. 

Average discharge.- 10 years, 1,051 second-feet. 

Extremes.- Maximum discharge during year, 16,700 second-feet June 29 (gage height, 12.58 Feet); no flow Oct. 17-21. 1938-48: Maximum discharge, 87,400 second-feet May 4, 1941 (gage height, 27.35 

feet); no flow at times. 

Maximum stage known, 36.2 feet in 1876, from information by Texas State Highway De- partment-and Corps of Engineers. 

Remarks.- Records fair. Wire-weight gage read once daily and readings used for major 

portion of year when water-stage recorder record was not available. Flow partly regu- lated by reservoirs in Elm Creek Basin (see p. 109), and Lakes Sweetwater and Trammel 

in Sweetwater Creek Basin, which have a combined capacity of about 106,000 acre-feet. 

Many small diversions above station for municipal supply and oil-field operations. 

Records of chemical analyses for the period 1948 are given in Water-Supply Paper 1133. 

Discharge. in aercnd-foot, water year October 194, to September 1940 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 3.4 469 72 78 31 1,340 42 5.6 4,600 5,080 450 13 

2 

3 

4 

5 

3.4 

2.7 

1.5 

.9 

266 

172 

124 

92 

60 

60 

104 

987 

306 

142 

85 

66 

28 

28 

29 

32 

1,140 

930 

774 

487 

39 

39 

34 

31 

2.1 2,220 

1.3 3,010 

.5 1,810 

.5 1,060 

2,300 

1,200 

1,060 

1,890 

349 11 

235 9.4 

202 13 

612 102 

6 

7 

8 

9 

10 

.7 

.5 

.5 

1.1 

1.1 

74 

61 

49 

37 

31 

1,580 

3,270 

2,950 

1,080 

721 

61 

56 

52 

56 

68 

35 

39 

39 

61 

35 

366 

285 

226 

179 

146 

31 

30 

25 

23 

23 

12 

2.4 

1.1 

.4 

1.0 

1,060 7,430 

594 10,600 

382 7,190 

304 4,660 

208 3,360 

640 

418 

294 

225 

186 

77 

52 

37 

28 

24 

11 

12 

13 

.7 

.7 

.2 

26 

22 

25 

550 

379 

274 

60 

56 

50 

50 

94 

78 

213 

103 

98 

22 

21 

16 

38 

699 

570 

155 2,120 

115 1,060 

f228 970 

183 

255 

210 

27 

25 

19 14 .2 39 226 44 31 98 17 219 f394 690 144 14 15 .2 29 204 42 34 85 16 125 230 665 98 11 

16 

17 

18 

19 

20 

.1 

0 

0 

0 

0 

30 

32 

117 

369 

236 

163 

124 

107 

103 

92 

36 

35 

39 

31 

32 

35 

30 

29 

29 

29 

81 

70 

63 

66 

53 

15 

15 

13 

10 

9.2 

58 

3/ 

28 

46 

75 

82 

58 

45 

41 

64 

442 

328 

255 

228 

210 

98 

115 

90 

72 

60 

7.8 

6.8 

5.9 

5.9 

3.9 

21 0 344 87 30 31 47 8.6 21 46 212 49 3.2 22 

23 

24 

25 

1.3 

2.1 

2.1 

131 

570 

500 

482 

322 

85 

83 

68 

63 

29 

25 

33 

69 

29 

29 

28 

34 

49 

60 

50 

52 

8.6 

8.6 

16 

116 

8.6 

3.2 

.1 

18 

35 

29 

1,260 

4,190 

205 

164 

150 

2,570 

41 

34 

28 

24 

2.5 

2.3 

2.1 

1.7 

26 6,260 

27 1,680 28 f749 

29 2,840 

30 3,370 

31 f641 

201 

134 

105 

98 

83 

-

60 

55 

52 

49 

46 

44 

32 

83 

43 

55 

47 

76 

52 

877 

959 

2,740 

-

-

308 

130 

87 

68 

58 

50 

915 

259 

65 

26 

15 

-

43 4,690 

3,870 

912 

595 1,610 

7,390 

5,930 

4,970 

13,600 

12,000 

-

1,500 

1,100 

795 

675 

406 

321 

23 

29 

40 

25 

17 

16 

1.4 

1.1 

.9 

.8 

.6 

Month Secondfoot-days Maximum Minimum Mean Runoff in 

acre-feet 

October 15,694.4 6,260 0 506 31,130 

November 5,139 570 22 171 10,190 

December 13,798 3,270 44 445 27,370 

-

Calendar year 1947 312,615.6 28,200 0 856 620,000 

_ 

January 1,917 306 25 61.8 3,800 February 5,575 2,740 28 192 11,060 March 7,762 1,340 47 250 15,400 April 1,909 915 8.6 63.6 3,790 May 13,692.8 4,690 .1 442 27,160 June 

July 

66,110 

59,838 13,600 

10,600 29 

150 2,204 

1,930 

131,100 

118,700 August 5,262 640 16 170 10,440 September 509.3 102 .6 17.0 1,010 

Water year 1947-48 197,204.5 13,600 0 539 391,200 

Peak discharge (base, 11,000 sec.-ft.).- June 29 (6 p.m.) 16,700 sec.-ft.; July 7 (9 p.m.) 13,200 sec.-ft. 

f Computed on basis of partly estimated gage-height record. 

Note.- Discharge, except for Oct. 26-31, Dec. 5-9, Feb. 29 to Mar. 3, Apr. 26, May 12, 27-29, 31, JUrie--174, 13, 14, 24-31, July 1-11, 21-27, computed from graph based on once-daily wire-weight gage 

readings. 
		

		

		

		

		

BRAZOS RIVER BASIN 93 

Possum Kingdom Reservoir near Graford, Tex. 

Location.- Mercury U-tube gage, lat. 32°52', long. 98°26', in powerhouse at dam on 

razos River, 2.6 miles upstream from Loving Creek and 11.3 miles southwest of Graford, Palo Pinto County. Datum of gage is 0.10 foot above mean sea level, datum 

of 1929 (levels by Brazos River Conservation and Reclamation District). 

Drainage area.- 22,550 square miles, of which 9,240 square miles is probably noncontributing. 

Records available.- March 1941 to September 1948. 

Extremes.- Maximum contents observed during year, 615,000 acre-feet July 12-24 (gage 

height, 994.0 feet); minimum observed, 424,500 acre-feet May 22-27 (gage height, 981.1 

feet). 

1941-48: Maximum contents observed, 743,700 acre-feet Oct. 5, 1941 (gage height, 

1,001.0 feet); minimum observed, 378,900 acre-feet Feb. 18-27, 1944 (gage height, 

977.3 feet). 

Remarks.- Reservoir is formed by reinforced concrete dam of flat slab deck, massive 

buttress type, with nine roof-weir (modified bear-trap) type gates, two bulkhead 

sections, and earthen dike section. Dam completed and storage began Mar. 21, 1941. 

Total capacity, 724,700 acre-feet (gage height, 1,000.0 feet, top of closed roof-weir 

gates). Usable capacity for power development, 698,900 acre-feet between gage heights 

911.5 feet (sill of powerhouse penstock) and 1,000.0 feet (top of closed roof-weir 

gates). Water below gage height 911.5 feet can be withdrawn through high pressure 

outlet down to gage height 874.8 feet. Figures given herein represent total contents. 

Water used for power development, industry, and irrigation. Records of water analyses 

for the water year 1948 are given in Water-Supply Paper 1133. Water samples are 

collected immediately below dam. 

Cooperation.- Records of daily gage height and capacity table furnished by Brazos River 

Conservation and Reclamation District. 

Monthly gage height and contents, water year October 1947 to September 1948 

Change in contents Oaf;ee 1ht Contents during month (acre.feet) (acre-feet) 

Sept.30 

Oct. 31 986.4 

986.9 - +7,100 Nov. 30 986.5 -5,700 Dec. 31 987.3 +11,300 

Calendar year 1947 - -119,300 , 

Jan. 31 Feb. 29 

Mar. 31 Apr. 30 

May 31 June 30 

July 31 

Aug. 31 Sept.30 

985.5 

984.4 

984.1 

982.0 

982.9 

989.1 

992.8 

989.2 

986.9 ' 

-25,300 

-15,100 

-4,100 

-27,200 

+11,200 

+86,400 

+59,400 

-57,800 

-33,100 

Water year 1947-48 - - +7,100 

t Gage height at 12 p. m. 
94 BRAZOS RIVER BASIN 

Brazos River near Palo Pinto, Tex. 

Location.- Water-stage recorder, lat. 32°51'45", long. 98°18'10", at bridge on Palo 

Finto-Graford highway, 300 feet downstream from Dark Valley Creek, 6 miles north 

of Palo Pinto, Palo Pinto County, and 20 miles downstream from Possum Kingdom Dam. 

Datum of gage is 831.23 feet above mean sea level, datum of 1929. 

Drainage area.- 22,760 square miles, of which 9,240 square miles Is probably noncontributing. 

Records available.- November 1933 to September 1948. January 1924 to November 1933 at 

site near Mineral Wells. Average discharge.- 14 years (1934-48), 1,197 second-feet. 

Extremes.- maximum discharge during year, 12,800 second-feet Dec. 7 (gage height, 8.09 

feet); minimum, 19 second-feet May 31. 

1933-48: Maximum discharge, 64,900 second-feet May 20, 1935, from rating curve 

extended above 32,000 second-feet; maximum gage height, 17.42 feet Oct. 17, 1942; no 

flow at times. Maximum stage known was reached by flood of 1876, according to data of Corps of 

Engineers, and was several feet higher than any subsequent flood. A stage of about 

24.0 feet was reached in June 1930, from information by local residents. 

Remarks.- Records good. Flow largely regulated by Possum Kingdom Reservoir (see preceding and several smaller reservoirs above Nugent in Clear Fork Basin, having a 

combined capacity of 831,000 acre-feet. Many small diversions above station for 

irrigatfon, municipal supply, and oil-field operation. 

Rating table, water year 1947-48 (gage height, in feet, and discharge, in second-feet) 

0.3 17 1.0 183 1.8 486 3.5 1,750 .4 37 1.2 239 2.0 610 4.0 2,230 .6 81 1.4 303 2.5 950 4.5 2,870 .8 130 1.6 384 3.0 1,340 5.0 3,820 

Discharge, In second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 442 133 45 641 105 247 512 633 102 310 268 1,300 

2 396 70 212 140 549 363 447 178 291 477 81 740 

3 389 37 884 139 1,140 414 298 747 84 401 166 481 4 567 131 589 93 888 556 88 643 532 86 259 573 5 170 184 198 74 998 695 198 391 795 183 350 297 

6 132 152 558 270 1,030 402 471 794 609 239 112 112 7 543 302 2,870 352 508 105 757 136 509 140 66 341 8 689 138 310 392 233 101 967 118 1,100 624 318 1,540 9 530 74 350 549 265 278 696 112 1,070 895 511 658 10 437 37 451 634 530 529 445 545 893 870 1,290 177 

11 417 144 394 419 1,010 465 204 879 804 494 1,280 63 12 238 91 369 328 717 100 232 267 851 350 1,280 96 13 98 196 260 523 278 198 609 72 625 1,010 1,210 192 14 199 266 306 312 110 82 184 41 156 1,230 757 314 15 468 143 664 348 81 99 247 272 740 1,240 386 118 

16 363 143 393 548 56 494 241 221 1,030 1,260 234 275 17 396 129 343 442 257 498 252 411 1,060 976 736 564 18 423 623 297 197 390 513 103 438 1,070 453 731 509 19 118 560 292 252 322 409 67 430 750 553 862 442 20 86 598 280 1,180 273 317 474 90 371 1,080 1,190 157 

21 364 780 222 923 452 110 692 43 410 1,080 1,990 935 22 397 542 104 956 217 93 557 369 858 1,200 1,350 1,050 23 404 181 354 953 83 238 1,560 140 919 954 1,820 946 24 215 79 510 523 630 489 434 53 546 600 1,760 764 25 153 110 102 299 914 514 269 121 666 519 1,690 490 

26 138 153 63 524 536 508 128 340 431 551 1,620 81 27 88 157 54 630 514 277 605 85 87 1,310 1,760 56 28 49 76 52 342 148 82 1,020 50 80 1,120 1,590 58 29 113 91 63 207 122 50 1,140 65 190 969 1,040 91 30 221 74 319 86 - 309 1,110 45 84 1,010 670 182 31 195 - 992 224 451 - 33 - 601 1,330 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 9,438 689 49 304 18,720 November 6,394 780 37 213 12,680 December 12,900 2,870 45 416 25,590 

Calendar year 1947 362,260 20,300 37 992 718,600 

January 13,500 1,180 74 435 26,780 February 13,356 1,140 56 461 26,490 March 9,986 695 50 322 19,810 April 15,007 1,560 67 500 29,770 May 8,762 879 33 283 17,380 June 17,713 1,100 80 590 35,130 July 22,785 1,310 86 735 45,190 August 28,707 1,990 66 926 56,940 September 13,602 1,540 56 453 26,980 • -- Water year 1947-48 172,150 2,870 33 470 341,500 
95 BRAZOS RIVER BASIN 

Brazos River near Glen Rose, Tex. 

Location.- Water-stage recorder, lat. 32°15'40", long. 97°41'50", a quarter of a mile up- 11T'eam from bridge on U. S. Highway 67, 2 miles upstream from Paluxy Creek, and 4 miles 

northeast of Glen Rose, Somervell County. Datum of gage is 567.82 feet above mean sea 

level, datum of 1929. 

Drainage area.- 24,840 square miles, of which 9,240 square miles is probably noncontri- buting. 

Records available.- October 1923 to September 1948. 

Average discharge.- 25 years, 1,639 second-feet. 

Extremes.- Maximum discharge during year, 12,500 second-feet Feb. 25 (gage height, 8.68 

Feet); minimum, 86 second-feet June 7 (gage height, 0.72 foot). 

1923-48: Maximum discharge, 97,600 second-feet May 18, 1935 (gage height, 23.68 

feet), from rating curve extended above 68,000 second-feet; no flow at times prior to 

construction of Possum Kingdom Dam. 

Maximum stage known, about 30.0 feet May 8 or 9, 1922, from information by local residents 

Remarks.- Records good. Flow partly regulated by Possum Kingdom Reservoir on Brazos River 

see p. 93) and several smaller reservoirs . Many small diversions above station 

for irrigation, municipal supply, and oil-field operation. 

Revisions (water year).- W 1058: 1932. 

Rating table, water year 1947-48 (gage height, in feet, and discharge, in second-feet) 

0.7 77 1.4 615 3.5 3,850 .8 122 1.6 850 4.0 4,520 .9 175 1.8 1,100 4.5 5,200 1.0 240 2.0 1,400 5.0 5,950 1.1 315 2.5 2,250 6.0 7,450 1.2 405 3.0 3,100 7.0 9,000 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 387 220 164 1,770 672 2,160 315 447 278 661 1,070 1,410 

2 285 182 188 2,940 505 1,770 240 934 201 457 983 650 3 188 154 201 2,030 369 910 188 1,020 154 292 934 1,070 4 233 159 208 1,240 278 707 377 1,090 127 315 560 1,240 5 465 201 188 696 278 814 549 650 113 455 387 1,060 

6 396 201 182 475 592 886 516 396 100 820 270 604 7 396 182 2,000 360 1,020 790 425 842 154 942 201 549 8 527 159 4,730 308 886 898 333 1,360 260 1,220 170 1,060 9 351 127 4,210 278 1,050 922 248 922 661 1,220 240 614 10 248 118 2,300 240 934 672 379 638 527 684 255 342 

11 316 170 1,070 368 560 485 802 3,720 608 560 182 576 12 604 240 672 387 387 405 958 1,600 922 898 133 1,080 13 516 214 638 646 396 405 661 593 910 1,050 361 549 14 475 220 582 638 621 650 549 890 850 838 1,020 342 15 425 287 604 527 1,010 661 360 742 707 538 1,070 255 

16 315 286 802 442 672 445 333 465 802 480 1,130 194 17 255 188 2,310 538 505 342 527 308 530 970 1,050 154 18 532 208 2,180 387 333 324 333 234 308 1,100 604 182 19 475 278 1,090 405 262 300 255 363 596 1,140 455 248 20 405 234 707 582 220 405 270 706 874 1,090 313 175 

21 387 208 593 593 194 626 270 467 922 790 605 409 22 405 382 485 378 311 790 262 672 958 495 696 485 23 308 604 445 478 415 650 201 505 560 617 898 445 24 208 707 405 970 333 505 219 308 549 970 1,510 297 25 194 862 351 946 7,520 378 754 214 435 996 1,530 766 

26 620 571 315 958 6,910 285 778 297 1,500 1,060 1,660 874 27 1,400 360 328 910 4,320 240 910 1,130 a2,340 838 1,930 850 28 1,480 285 549 560 3,480 455 571 1,070 a1,370 582 2,380 650 29 803 227 346 333 2,520 582 405 1,160 3,030 505 2,050 492 30 471 188 255 360 538 285 821 1,000 710 1,860 306 31 308 313 790 425 415 - 1,050 1,660 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 14,378 1,480 188 464 28,520 November 8,422 862 118 281 16,700 December 29,411 4,730 164 949 58,340 

Calendar year 1947 415,699 20,500 118 1,139^ 824,600 

January -

22,533 

-

2,940 240 727 44,690 February 37,553 7,520 194 1,295 74,490 March 20,425 2,160 240 659 40,510 April 13,273 958 188 442 26,330 May 24,979 3,720 214 806 49,550 June 22,346 3,030 100 745 44,320 July 24,343 1,220 292 785 48,280 August 28,167 2,380 133 909 55,870 September 17,928 1,410 154 598 35,560 

Water year 1947-48 263,758 7,520 100 . 721 523,200 

a No gage-height record; discharge computed on basis of recorded range in stage and discharge measurement on June 28. 
96 BRAZOS RIVER BASIN 

Brazos River near Whitney, Tex. 

Location.- Wire-weight gage, lat. 31°54'10", long. 97'23'05", at bridge on State Highway 

'a, 1.8 miles upstream from Towash Creek and 5 miles southwest of Whitney, Hill County. 

Datum of gage is 432.06 feet above mean sea level, datum of 1929 (Brazos River Conservation and Reclamation District bench mark). 

Drainage area.- 26,090 square miles, of which 9,240 square miles is probably noncontributing. 

Records available.- October 1938 to September 1948. 

Average discharge.- 10 years, 1,950 second-feet. 

Extremes.- Maximum discharge during year, ?8,300 second-feet Feb. 25 (gage height, 17.96 

feet, from floodmark); minimum observed, 135 second-feet Aug. 14. 

1938-48: Maximum discharge, 66,400 second-feet May 1, 1944 (gage height, 29.3 feet, 

from floodmark); minimum observed, 2.0 second-feet Oct. 31, Nov. 1, 1939. 

Maximum stage known, 46 feet May 9, 1922, from information by local residents. 

Remarks.- Records good. Gage read twice daily, oftener during high water. Flo', partly 

rebated by Possum Kingdom Reservoir on Brazos River (see p. 93) and several smaller 

reservoirs in Clear Fork Basin. Many small diversions above station for irrigation, 

municipal supply, and oil-field operation. Records of chemical analyses for water year 

1948 are given in Water-Supply Paper 1133. 

Rating table, water year 1947-48 (gage height, in feet, and discharge, in second-feet) (Shifting-control method used Oct. 1-5, 

Jan. 6 to Feb. 15, Apr. 26 to May 2). 

5.2 135 6.5 965 4,580 5.3 175 7.0 1,390 10.0 5,600 5.4 220 7.5 1,870 11.0 8,000 5.6 325 8.0 2,400 12.0 10,600 5.8 450 8.5 3,020 13.0 13,300 6.0 590 9.0 3,750 

9.5 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. „,„„„ , „„ -.-- MHE( WOWWA E5

M 6;ciM i',.1 EHE !EM 1,620 

1,440 750 

941 1,220 

1,110 682 

597 2,170 

1,270, 

590 

385 1,200 705 

478 

361 

281 

230 

193 

220 

260 

211 

546 

464 

390 

553 

870 

855 

682 

597 

1 193 411 260 1,260 957 2,150 562 418 604 1,260 2 325 308 225 2,640 848 5,190 464 331 424 949 3 349 255 211 2,890 690 2,340 385 855 331 2,550 4 250 216 325 1,970 590 1,390 337 1,040 260 1,950 5 167 184 471 1,340 457 1,220 325 1,160 220 1,370 

6 281 184 303 901 398 1,340 604 786 193 3,750 7 404 230 3,450 690 411 1,300 604 520 175 1,140 8 392 220 3,510 562 1,160 1,180 520 646 159 1,530 9 485 225 6,580 464 949 1,260 457 1,440 184 1,480 10 437 211 3,450 418 1,160 1,220 373 965 423 1,530 

11 314 167 2,070 367 1,110 1,040 314 6,060 590 981 12 240 143 1,220 361 825 825 705 5,420 525 675 13 471 193 901 492 576 728 1,010 1,980 901 917 14 597 320 750 576 492 682 735 1,070 933 1,100 15 506 492 1,870 705 625 893 611 981 832 925 

16 437 379 1,970 675 1,150 949 464 941 742 682 17 411 424 1,190 478 802 728 373 705 772 492 18 325 320 2,570 639 660 597 520 562 625 925 19 375 250 2,170 492 506 562 437 520 398 1,130 20 485 260 1,270 492 398 541 337 682 406 1,150 

21 437 331 933 576 325 534 308 750 818 1,160 22 398 276 795 705 303 885 314 548 893 848 23 404 349 690 520 281 1,110 314 735 1,280 604 24 392 632 632 424 506 885 292 668 5,130 506 25 281 705 590 1,020 10,900 690 331 464 1,440 965 

26 245 870 548 1,010 11,600 590 812 385 1,900 981 27 773 698 492 1,030 7,740 492 870 373 4,890 1,200 2,440 870 28 1,200 485 437 1,010 5,310 411 1,040 2,210 29 1,340 361 618 639 3,990 464 712 1,300 2,110 646 30 856 314 548 424 675 527 1,290 3,450 569 31 576 - 478 430 - 690 - 1,040 - 576 

Month Secondfoot-days Maximum Minimum Mean Runoff in 

acre-feet 

October 

November 14,346 

10,413 1,340 870 167 143 463 347 28,450 

20,650 

December 41,527 6,580 211 1,340 82,370 

Calendar year 1947 516,855 20,500 143 1,416 1,025,000 

January 

February 

March 

26,200 

55,719 

33,561 

2,890 

11,600 

5,190 

361 

281 

411 

845 1,921 

1,083 

51,970 

110,500 

66,570 April 

May 

June 

July 

August 

September 

15,657 

36,845 

34,048 

35,411 

26,717 

21,871 

1,040 

6,060 

5,130 

3,750 

2,180 

2,170 

292 

331 

159 

492 

143 

193 

522 1,189 

1,135 

1,142 862 

729 

31,060 

73,080 

67,530 

70,240 

52,990 

43,380 

Water year 1947-48 352,315 11,600 143 963~698,800 
		

97 BRAZOS RIVER BASIN 

Brazos River at Waco, Tex. 

Location.- Water-stage recorder, lat. 31°33.40", long. 97°07,45", at Washington Avenue 

Bridge in Waco, McLennan County, 2t miles downstream from Bosque River. Datum of gage 

is 356.80 feet above mean sea leve , datum of 1929, supplementary adjustment of 1942. 

Drainage area.- 28,500 square miles, of which 9,240 square miles is probably noncontributing. 

Records available.- September 1898 to September 1948. (January 1912 to September 1914, 

monthly records only, in Water-Supply Paper 850). U. S. Weather Bureau has collected 

gage-height records in this vicinity since 1900. 

Average discharge.- 50 years, 2,698 second-feet. 

'zxtremes.- Maximum discharge during year, 36,800 second-feet Feb. 26 (gage height, 20.48 

.eet), minimum, 134 second-feet Aug. 16. 

1898-1948: Maximum discharge, 246,000 second-feet Sept. 27, 1936 (gage height, 40.90 

feet, levee on left bank was overtopped and broken by flood); minimum discharge for 

periods of daily record, 1898-1911, 1914-48, no flow Aug. 20, 21, 1918, and probably 

for several days in August 1923. 

A stage of 39.7 feet was reached Dec. 3, 1913, when levee on left bank was broken 

by flood, from information by U. S. Weather Bureau. 

Remarks.- Records good except those above 5,000 second-feet, which are poor. Flow partly 

regulated by Possum Kingdom Reservoir on Brazos River (see p. 93), several small reservoirs in Clear Fork Basin, and Lake Waco (capacity, 22,000 acre-feet, revised) on Bosque 

River near Waco. A siltation survey on Lake Waco by the Soil Conservation Service of 

the U. S. Department of Agriculture in December 1947 indicates a 44.07 percent capacity 

loss from siltation since storage began in April 1930. Many small diversions above station for municipal supply, irrigation, and oil-field operation do not appreciably affect 

flow. 

Revisions (water years).- W 850 and W 878: (monthly and yearly summaries only, 1899-1905, 1907-1U). 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

244 578 342 M F U

,,',:iTri':2,FM FME 

1M

gWE

P, „4,-:... --

1 495 5,110 750 608 1,040 3,010 

FAH EF ,,in) 'RFEri 1-7,iM 4.:11:- EVM 

1,700 

1,560 

1,330 792 

956 

1,200 

1,040 820 

749 2,700 

1,240 620 

470 1,020 687 

495 

388 

308 

248 

200 

182 

244 

212 

2 228 445 304 819 3,550 644 500 632 1,770 3 317 356 283 4 410 288 328 5 338 240 320 

6 264 212 445 7 265 204 450 8 445 224 4,660 9 435 236 5,410 10 470 240 4,360 

11 

12 

480 

374 212 

186 2,900 1,900 13 292 165 1,240 14 378 176 908 15 572 252 964 

16 

17 505 

460 392 

420 2,100 

1,700 18 

19 430 

365 396 360 1,340 

2,350 20 324 280 1,880 

21 495 288 1,240 

836 3,630 550 401 470 2,140 715 2,200 470 905 370 3,360 626 1,560 410 1,200 300 3,600 

520 1,460 388 1,280 252 2,690 465 1,560 602 884 216 3,210 573 1,460 650 614 196 1,520 1,150 1,330 596 722 179 3,030 1,050 1,420 515 1,460 172 4,820 

1,210 1,420 440 5,420 462 3,470 1,130 1,200 406 15,200 566 1,090 1,140 988 2,030 4,530 485 736 694 852 1,230 2,100 806 964 578 806 932 1,280 884 1,280 

694 988 715 1,150 785 948 1,100 1,040 560 1,040 687 729 860 820 445 799 701 560 694 687 505 918 614 841 555 638' 515 2,540 430 1,280 

470 632 392 836 342 1,240 22 465 342 420 668 352 799 708 1,210 23 420 312 764 383 1,060 356 632 836 908 24 415 284 674 360 1,280 356 701 2,490 656 370 25 415 470 614 3,470 1,030 1,700 694 5,410 540 425 

26 352 626 566 27 288 778 535 28 665 674 490 29 1,170 510 460 30 1,280 406 555 31 844 584 

22,200 813 1,140 540 1,830 1,010 388 

426 

806 

806 

687 

9,590 687 996 4,140 4,880 1,090 6,880 584 988 3,160 4,250 1,100 5,230 505 1,130 2,050 2,450 900 540 806 1,330 2,500 701 729 - 1,280 632 

Month Secondfoot-days Maximum Minimum Mean Runoff in 

acre-feet 

October 

November 

December 

14,405 

10,552 

41,590 

1,280 778 5,410 

228 

165 

283 

465 

352 1,342 

28,570 

20,930 

82,490 

Calendar year 1947 686,549 20,100 165 1,881 1,362,000 - January 

February 

March 

April 

May 

June 

July 

August 

September 

27,664 

64,907 

41,247 

21,569 

59,713 

35,943 

51,035 

24,653 

23,069 

2,970 

22,200 

5,110 

2,030 

15,200 

5,410 

4,820 

2,050 

2,700 

435 

360 

505 

352 

401 

172 

540 

148 

182 

892 2,238 

1,331 719 1,926 

1,198 

1,646 795 

769 

54,870 

128,700 

81,810 

42,780 

118,400 

71,290 

101,200 

48,900 

45,760 

Water year 1947-48 416,347 22,200 148 1,138 825,700 

Note.- Discharge July 12-27 computed from graph based on once-daily readings of outside gage by U.-r-Veather Bureau. 
98 BRAZOS RIVER BASIN 

Brazos River near Marlin, Tex. 

Location.- Wire-weight gage, lat. 31°17'20", long. 96°58'10", at bridge on State Highway 

139, i mile upstream from Deer Creek and 4.5 miles southwest of Marlin, Falls County. 

Datum of gage is 312.15 feet above mean sea level, datum of 1929. 

Drainage area.- 29,150 square miles, of which 9,240 square miles is probably noncontributing. 

Records available.- October 1938 to September 1948. 

Average discharge.- 10 years, 3,307 second-feet. 

Extremes.- Maximum discharge during year, 35,900 second-feet Feb. 26 (gage height, 17.35 

feet, from graph based on gage readings); minimum, 128 second-feet Aug. 17 (computed 

from graph based on gage readings). 

1938-48: Maximum discharge, 132,000 second-feet May 3, 1944 (gage height, 33.3 

feet, from floodmark); minimum not determined. 

Maximum stage known, 35.8 feet Dec. 3 or 4, 1913, from information by local resi- dents. Flood of Sept. 28, 1936, reached a stage of 35.2 feet. 

Remarks.- Records good. Gage read twice daily, oftener during high stages. Flow partly 

regu ated by reservoirs above Waco. Many small diversions above stations for irriga- tion, municipal supply, and oil-field operation do not appreciably affect flow. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 334 892 465 726 766 6,000 732 829 1.470 3,200 6A2 1,950 

2 292 656 410 662 674 5,800 759 656 1,380 4,000 644 1,800 

3 272 510 383 1,830 1,020 5,600 686 570 918 2,050 1,040 1,650 

4 272 415 356 3,130 1,070 3,780 587 485 609 3,000 1,120 a1,290 

5 370 356 396 2,820 938 2,320 526 850 516 4,180 1,060 915 

6 352 304 352 2,100 822 1,700 480 1,120 450 4,620 968 1,070 

7 292 260 480 1,520 706 1,600 495 1,200 392 3,960 726 1,290 

8 321 236 2,520 1,100 626 1,700 700 864 347 3,230 548 1,100 

9 465 260 4,380 864 706 1,600 871 662 308 2,120 460 1,340 

10 415 276 6,020 712 1,380 1,470 656 761 284 3,460 352 1,320 

11 435 272 4,190 632 1,380 1,520 554 2,430 272 4,920 256 a2,700 

12 480 236 3,060 538 1,560 1,470 490 20,000 194 3,900 205 1,380 

13 378 226 2,100 914 1,340 1,240 2,480 10,300 423 1,520 194 773 

14 304 248 1,520 592 1,720 1,050 3,060 3,520 554 1,070 240 604 

15 326 222 1,240 632 1,640 930 1,620 2,100 794 1,200 212 1,060 

16 554 272 1,380 604 801 878 1,000 1,380 938 1,340 160 801 

17 495 388 2,650 773 885 1,060 773 1;340 871 1,160 372 565 

18 455 475 1,950 836 1,290 1,120 609 1,240 780 945 984 490 

19 410 440 1,800 726 1,100 922 505 1,120 836 738 1,060 420 

20 352 420 2,760 766 915 864 526 1,620 726 1,010 1,000 312 

21 312 338 2,150 738 752 801 543 2,650 495 1,290 787 276 

22 455 360 1,520 674 650 700 460 977 420 1,380 543 240 

23 450 356 1,160 706 582 732 401 850 738 1,290 435 202 

24 420 365 945 892 538 1,050 435 759 908 1,010 347 252 

25 415 320 829 745 759 1,240 843 801 4,820 829 582 284 

26 415 435 752 680 20,900 1,060 2 590 885 3,480 700 773 455 

27 374 759 700 1,110 12,600 836 1 380 1,240 1,590 992 1,760 425 

28 334 871 662 1,290 8,750 732 1 060 5,410 6,650 1,120 2,360 420 

29 643 752 620 1,240 a6,680 638 992 2,670 4,640 1,200 1,800 843 

30 1,240 576 609 1,110 538 1,080 2,320 2,880 984 1,950 871 

31 1,340 759 984 - 576 1,600 - 794 1,950 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 13,972 1,340 272 451 27,710 

November 12,496 892 222 417 24,790 

December 49,118 6,020 352 1,584 97,420 

_ 

Calendar year 1947 787,868 

-

21,300 222 2,159 1,563,000 

January 32,646 3,130 538 1,053 64,750 

February 73,550 20,900 538 2,536 145,900 

March 51,527 6,000 538 1,662 102,200 

April 27,893 3,060 401 930 55,320 

May 73,209 20,000 485 2,362 145,200 

June 39,683 6,650 194 1,323 78,710 

July 63,212 4,920 700 2,039 125,400 

August 25,550 2,360 160 824 50,680 

September 26,998 2,700 202 900 53,550 

Water year1947-48 489,854 20,900 160 1,338 971,600 

a No gage-height record; discharge computed on basis of estimated gage-height record. 
		

BRAZOS RIVER BASIN 99 

Brazos River near Bryan, Tex. 

Location.- Water-stage recorder, lat. 30°37., long. 96°29,, 2.4 miles downstream from 

Little Brazos River and 9 miles southwest of Bryan, Brazos County. Datum of gage is 

192.3 feet above mean sea level, datum of 1929. 

Drainage area.- 3e,430 square miles, of which 9,240 square miles is probably non-contributing. Records available.- September 1?25 to September 1948. February 1918 to September 1925 at 

site near College Station, 7f miles downstream. August 1899 to December 1902 at site 

near College Station, 7f miles downstream, daily records published in U. S. Department 

of Agriculture, Office of Experiment Stations, Bulletins Nos. 104, 119, and 133. 

Average discharge.- 29 years (1918-25, 1926-48), 6,064 second-feet. 

nxtremes.- Maximum discharge during year, 30,000 second-feet May 13 (gage height, 18.04 

feet); minimum, 322 second-feet Aug. 19. 

1925-48: Maximum gage height, 46.1 feet May 20, 1930, present site and datum (discharge not determined); minimum discharge, 87 second-feet Aug. 24, 1934. 

Maximum stage known, about 54.0 feet Dec. 5, 1913, present datum. 

Remarks.- Records good. Flow partly regulated by reservoirs above Waco. Many small 

diversions above station for irrigation, municipal supply, and oil-field operation do 

not appreciably affect flow. 

Rating tables, water year 1947-48 (gage height, in feet, 

and discharge in second-feet) 

(Shifting-control method used Nov. 1-30) 

Oct. 1-31 Nov. 1-Sept. 30 

3.9 460 3.2 290 5.5 1,650 10.0 8,000 

4.1 540 3.5 405 6.0 2,110 11.0 10,200 

4.5 750 4.0 630 7.0 3,230 13.0 15,200 

4.5 910 8.0 4,480 15.0 21,:"JO 

Si. 1,250 9.0 6,050 17.4 28,200 

Discharge, in second-feet, water year October 1947 to Septemberi948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 620 1.140 975 975 8,640 910 1,740 3,830 4,480 975 1,960 

2 

3 

4 

5 

570 

528 

504 

484 

1,180 

910 

942 

910 

850 1,010 779 1,010 

800 1,080 

1,410 2,720 

8,000 

6,410 

5,870 

4,760 

910 1,530 

1,010 1,290 

1,040 1,110 

975 975 

2,810 

2,640 

2,310 

1,920 

3,470 

4,480 

5,690 

4,540 

820 1,960 

774 1,780 

756 1,650 

1,010 1,490 

6 

7 

8 

9 

10 

480 

540 

536 

500 

472 

790 

696 

625 

558 

522 

942 

850 

850 

1,270 

4,030 

3,050 

2,480 

2,010 

1,610 

1,530 

3,590 

2,870 

2,420 

2,310 

2,260 

910 942 

850 1,180 

790 1,830 

752 1,740 

939 1,490 

1,370 3,470 

1,110 3,500 

910 4,900 

880 4,040 

790 2,480 

1,080 1,220 

1,040 942 

975 1,080 

801 1,140 

650 1,080 

11 

12 

13 

14 

15 

532 

575 

S70 

600 

545 

51 7 

504 

499 

504 

494 

5,520 

4,090 

3,350 

2,810 

2,360 

1,330 

1,180 

1,040 

975 

1,140 

2,060 

1,960 

1,960 

1,830 

1,650 

1,450 

1,530 

1,220 

3,240 

6,980 

1,410 

8,760 

27,900 

15,700 

8,000 

752 4,160 

686 6,050 600 5,690 

585 3,440 

768 2,110 

566 1,220 

499 1,610 

441 2,110 

401 1,250 365 1,450 

16 

17 

18 

19 

20 

492 

472 

610 

630 

585 

476 

472 

508 

640 

708 

2,110 

1,920 

2,360 

2,640 

2,010 

942 

975 

1,040 

1,110 

1,220 

1,496 

1,450 

1,370 

1,450 

1,450 

4,480 

3,050 

2,140 

1,610 

1,290 

5,200 

3,710 

2,640 

2,310 

2,210 

757 1,740 

933 1,740 

1,010 1,570 

942 1,330 

880 1,110 

35/ 1,410 

365 1,290 

341 1,010 

442 790 

880 670 

21 

22 

23 

24 

25 

545 

516 

488 

540 

575 

696 

713 

746 

686 

665 

2,480 

2,640 

2,010 

1,650 

1,450 

1,220 

1,180 

1,140 

1,080 

1,080 

1,290 

1,220 

1,140 

1,110 

1,140 

1,110 1,830 

1,040 2,910 

1,010 2,020 

910 1,410 

880 1,290 

880 975 

790 1,180 

655 1,290 

576 1,330 

782 1,220 

975 

975 

769 

625 

558 

585 

508 

450 

413 

389 

665 '

1,410 1 130 1,250 2,540 1,040 522 385

;1§.?0,

26 550 1,410 1,180

2122 

27 532 615 1,290 1,110 1,570 3 310 2,360 3,710 850 640 385

28 532 660 1,180 1,040 1,410 3 710 4,510 2,540 774 839 486

29 528 850 1,110 1,250 1,220 2 870 8,000 4,160 1,010 1,800 486

30 500 97 5 1,040 1,330 1,140 2 240 5,200 4,480 1,080 2,420 472

31 683 - 1,010 1,650 1,010 4,760 1,110 2,010 

Month 

October 

November 

December 

Calendar year1947 

January 

February 

March 

April 

May 

June 

July 

August 

September 

Water year 1947-48 

Second- Runoff in Maximum Minimum Mean foot-days acre-feet 

16,834 683 472 543 33,390 

20,866 1,180 472 696 41,390 

59,196 5,520 779 1,910 117,400 

1,494,533 44,700 472 4,0952,964,000 

_ -

41,681 3,050 942 1,345 82,680 

87,543 19,000 910 3,019 173,600 

77,460 8,640 1,010 2,499 153,600 

54,286 6,980 752 1,810 107,700 

127,207 27,900 942 4,103 252,300 

47,596 4,480 576 1,587 94,410 

81,849 6,050 774 2,640 162,300 

25,671 2,420 341 828 50,920 

31,671 2,110 385 1,056 62,820 

671,866 27,900 341 1,8361,333,000 

Peak discharge (base, 41,000 sec.-ft.).- No peak above base. 
,

100 BRAZOS RIVER BASIN 

Brazos River near Hempstead, Tex. 

Location.- Wire-weight gage. lat. 30°07.25", long. 96°11,00", at bridge on U. S. Highway 

zW, 4,500 feet upstream from Texas & New Orleans Railroad bridge, 6.5 miles northwest 

of Hempstead Waller County, and 8 miles upstream from Caney Creek. Datum of gage is 

118.07 feet above mean sea level, datum of 1929. 

Drainage area.- 42,670 square miles, of which 9,240 square miles is probably noncontributing. 

Records available.- October 1938 to September 1948. U. S. Weather Bureau has collected 

gage-height records in this vicinity at intermittent periods since 1903. 

Average discharge.- 10 years, 8,517 second-feet. 

Extremes.- Maximum discharge during year, 24,000 second-feet May 14 (gage height, 19.25 

feet, from graph based on gage readings); minimum observed, 418 second-feet Aug. 21. 

1938-48: Maximum discharge, 116,000 second-feet Nov. 30, 1940 (gage height, 44.04 

feet); minimum, 254 second-feet Nov. 8, 1939. 

Maximum stage known, 56.1 feet Dec. 8, 1913, from data by engineers of Texas & New 

Orleans Railroad, obtained at bridge 4,500 feet downstream. 

Remarks.- Records fair. Flow partly regulated by reservoirs above Waco. Gage read twice 

daily, oftener during high stages. Many small diversions above station for irrigation. 

municipal supply, and oil-field operation do not appreciably affect flow. 

Discharge, in second-feet, water year October 1947 to September1948 f 

515Wf Gi i. A.LA 0.00)W s=.. ,o-,,. ..0-, .... . l.... 

WOO INWOO ..0.0- .WWNOW 

... '0,4 al &M..1 W ,O.J .

May June 00000000000 00 8888508888C S88S 000

(

..,,,,-, ,.-,,,,, ...........-...r.-,,,.-, 1-,,NNUA4..M.4.4

.. . . .. . . ., .• . . . .. . • . .. . . . .. .. AN 010)r iT HHHgF;

aME . .c 

'

I'H

r Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. July Aug. Sept. 00000 

M.'97 EiniFt' Et'M HFIR . ei

n. 

,.z,;,:._ ,; .,4

,,._7 .-

1 1,010 1,260 2,010 O29

282220 2g?g2g0000 00000 000000

$ 

. 

' V8g28 =V"' c.1.-.. ,,10.14. N,M1M, ..0.8001 

1,060 21 430 4,660 1,060 2,010

01W W ,W .1. 4,.. Z OMINN NNN .-,-1 NNNNN ,,,..,, P 

2 880 1,160 a1,230 2,080 1 330 4,920 1,080 1,890 3 788 1,180 1,180 2,010 1 260 4,560 995 1,830 4 742 1,330 1,260 1,890 1 230 a4,330 885 1,770 5 700 1,950 1,280 1,890 1,280 4,680 808 1,650

6 680 2,400 1,540 1,950 1 280 4,000 808 1,600 7 640 2,600 2,660 2,010 1 260 5,820 972 1,480 a 640 2,400 2,800 2,200 1 160 6,800 1,040 1,280 9 680 2,140 2,530 3,980 1 110 5,430 1,020 1,130 10 680 1,950 2,200 6,230 1,040 4,920 928 1,130

11 640 2,790 1,950 6,800 1 040 3,890 790 1,180 12 602 5,820 1,890 a6,230 1 200 3,780 702 1,200 13 640 5,820 1,650 5,430 1 770 5,560 640 1,230 14 680 4,440 1,540 4,560 2 600 6,370 625 1,650 15 720 3,780 1,430 4,000 4,000 5,040. 565 1,830

16 720 4,220 1,430 3,560 8 830 3,140 492 1,380 17 700 3,240 1,600 3,340 8 310 2,140 468 1,430 18 640 2,730 1,650 3,140 6 370 1,890 442 1,430 19 621 2,400 1,650 2,880 5 170 1,770 442 1,430 20 720 2,600 1,650 2,660 4,330 1,600 430 1,230

21 765 2,400 1,890 3,140 3 670 1,430 442 928 22 742 2,140 1,890 4,680 2 960 1,230 755 825 23 700 2,400 1,770 4,560 2 600 1,130 905 738 24 680 2,400 1,650 3,890 2 340 1,260 885 685 25 621 2,010 1,650 2,880 1,890 a1,280 808 610

26 660 1,650 1,650 2,340 2 660 1,330 702 550 27 a700 1,540 a1,890 2,700 2 400 1,280 640 535 28 680 1,480 a2,200 15,700 2 800 1,080 610 505 29 680 1,380 a2,200 15,800 4 440 950 640 492 30 700 1,280 2,140 4,110 885 905 550 31 700 1,160 2,080 - 995 1,770 -

Second- Runoff in foot-days 

October 21,751 1,010 602 702 43,140 November 36,432 4,780 602 1,214 72,260 December 75,850 5,820 1,060 2,447 150,400 

Calendar year 1947 2,317,451 - 55,900 602 6,349 4,596,000 

January 55,390 2,800 1,180 1,787 109,900 February 124,540 15,800 1,890 4,294 247,000 March 124,680 12,200 1,600 4,022 247,300 April 85,870 8,830 1,040 2,862 170,300 May 151,700 22,800 1,480 4,894 300,900 June 74,450 7,700 1,060 2,482 147,700 July 98,170 6,800 885 3,167 194,700 August 24,254 1,770 430 782 48,110 September 36,178 2,010 492 1,206 71,760 

Water year 1947-48 909,265 22,800 430 2,484 1,803,000 

Peak discharge (base, 50,000 sec.-ft.).- No peak above base. 

a Ro gage-height record; discharge computed on basis of estimated gage-height record. 

Month Maximum Minimum Mean acre-feet 
BRAZOS RIVER BASIN 101

Brazos River near San Felipe, Tex. 

Location.- Water-stage recorder, lat. 29°46,20", long. 96°02,10", at bridge on U. S. High- way 9U, 200 feet downstream from Missouri-Kansas-Texas Railroad bridge, 1.3 miles down- stream from Irons Creek, and 5.0 miles southeast of San Felipe post office, Austin 

County. Datum of gage is 79.32 feet above mean sea level, datum of 1929. 

Drainage area.- 43,690 square miles, of which 9,240 square miles is probably noncontribut- ing 

Records available.- December 1938 to September 1948 (October 1945 to September 1948, gage heights onlyT. 

Extremes.- Maximum gage height during year, 17.82 feet May 14; minimum, 7.22 feet Aug. 22. 

19J8-48: Maximum gage height, 41.10 feet Nov. 25, 1940 (discharge, 152,000 secondfeet); minimum, 6.57 feet Oct. 9, 1939. 

Maximum stage known, 49.0 feet Dec. 9, 1913, from information by local resident. 

Remarks.- Discharge not computed. Flow partly regulated by reservoirs above Waco. Many 

-5= diversions above station for irrigation, municipal supply, and oil-field operation 

do not appreciably affect flow. 

Oage height, in feet, water year October 1947 to September 1948 

Day Oot. Nov. Deo. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 8.68 8.17 8.31 8.74 9.28 15.78 8.87 10.34 12.04 9.83 8.17 8.64 

2 8.63 8.11 8.42 8.72 9.26 14.61 8.79 9.96 11.65 10.54 8.28 9.06 

3 8.52 8.14 8.58 8.68 9.31 13.59 8.68 9.61 11.44 10.70 8.28 8.98 

4 8.42 8.52 8.75 8.62 9.34 12.99 8.58 9.37 11.00 10.51 8.18 8.97 

5 8.35 8.72 9.29 8.62 9.34 12.66 8.55 9.20 10.51 10.61 8.05 8.95 

6 8.29 8.64 10.06 8.62 9.33 12.96 8.60 9.10 10.07 10.72 7.95 8.88 7 8.24 8.57 10.51 8.89 9.32 12.73 8.60 8.96 9.70 10.63 7.92 8.78 

8 8.19 8.56 10.00 9.66 9.42 12.10 8.54 8.86 9.30 11.39 8.09 8.66 

9 8.16 8.48 9.88 9.74 10.11 11.55 8.46 8.69 8.92 11.63 8.20 8.54 10 8.18 8.37 9.62 9.55 11.08 11.21 8.39 8.78 8.68 11.06 8.18 8.34 

11 8.22 8.30 9.36 9.32 11.63 11.00 8.32 9.08 8.48 10.67 8.11 8.29 

12 8.18 8.21 10.07 9.14 11.83 10.83 8.30 9.16 8.30 10.10 7.97 8.34 

13 8.14 8.12 11.90 9.03 11.65 10.61 8.45 9.56 8.15 10.05 7.83 8.30 

14 8.13 8.12 11.85 8.87 11.25 10.40 9.04 16.42 8.02 11.00 7.80 8.35 

15 8.19 8.09 11.29 8.73 10.83 10.22 9.68 16.48 7.95 11.40 7.61 8.74 

16 8.22 8.09 11.52 8.69 10.56 9.99 10.96 13.99 7.85 10.80 7.45 8.93 17 8.25 8.08 11.65 8.75 10.38 9.71 12.68 12.56 7.85 9.90 7.38 8.60 

18 8.23 8.23 10.65 8.81 10.26 9.42 12.08 11.70 7.95 9.32 7.33 8.62 19 8.18 11.05 10.24 8.94 10.14 9.13 11.33 11.10 8.15 9.08 7.32 8.62 

20 8.11 10.64 10.01 9.29 9.99 9.10 10.84 10.58 8.20 9:00 7.31 8.50 

21 8.14 9.61 10.02 9.12 10.00 8.98 10.50 10.27 8.20 8.86 7.29 8.29 

22 8.25 9.28 9.81 9.06 10.70 9.00 10.19 10.20 8.10 8.67 7.23 8.28 

23 8.25 9.15 9.66 8.98 11.23 9.03 ' 9.89 10.20 7.95 8.48 7.59 7.92 

24 8.20 8.87 9.78 8.87 10.97 9.40 9.64 10.44 7.85 8.46 7.97 7.77 

25 8.15 8.68 9.67 8.80 10.69 9.34 9.52 10.66 7,75 8.43 8.06 7.63 

26 8.12 8.60 9.41 8.81 10.21 9.28 9.73 10.33 7.60 8.53 8.00 7.51 

27 8.10 8.51 9.20 8.96 9.82 9.19 9.84 10.15 7.60 8.54 7.83 7.41 

28 8.15 8.40 9.07 9.26 12.33 9.07 9.51 9.76 7.85 8.45 7.66 7.34 

29 8.22 8.35 8.98 9.46 16.07 9.09 9.82 9.54 9.62 8.35 7.58 7.30 

30 8.31 8.32 8.87 9.36 9.11 10.50 10.68 9.86 8.15 7.58 7.29 

31 8.23 - 8.83 9.30 - 9.02 - 12.47 - 8.04 7.83 

Note.- No gage-height record Mar. 2-24, June 9-28, Aug. 15-17; gage heights computed on basis of 

reT6F31 for stations near Hempstead and at Richmond. 
102 BRAZOS RIVER BASIN 

Brazos River at Richmond, Tex. 

Location.- Water-stage recorder and wire-weight gage, lat. 29°35', long. 95°45', at bridge 

on U. Highway 59 in Richmond, Fort Bend County, about 925 feet downstream from Texas 

& New Orleans Railroad bridge. Datum of gage is 40.8 feet above mean sea level, datum 

of 1929. 

Drainage area.- 44,050 square miles, of which 9,240 square miles is probably noncontributing. 

Records available.- January 1903 to June 1906, June 1931 to September 1948. October 1922 

to September 1031 at site at Rosenberg, 7.6 miles upstream; records equivalent except 

for diversion by Richmond Irrigation Co.'s canal. June to November 1901 and June to 

September 1902 at Texas & New Orleans Railroad bridge about 925 feet upstream, daily 

records published in U. S. Department of Agriculture, Office of Experiment Stations, 

Bulletins Nos. 119 and 133. U. S. Weather Bureau has collected gage-height records in 

this vicinity since 1914. 

Average discharge.- 28 years (1903-5, 1922-48), 8,157 second-feet. 

Extremes.- Maximum discharge during year, 22,100 second-feet May 15 (gage height, 13.22 

feet); minimum, 198 second-feet Aug. 24. 

1903-6, 1931-48: Maximum discharge, 117,000 second-feet Nov. 28, 1940 (gage height, 38.40 feet); minimum, 33 second-feet Aug. 23, 24, 1934. 

Flood of June 6, 1929, reached a stage of 40.6 feet, present site and datum, from 

floodmarks (discharge, 120,000 second-feet). Flood of Dec. 10, 1913, reached a stage of 

48.2 feet, present datum, from floodmarks on right bank 1,000 feet upstream from gage. 

Remarks.- Records good. Wire-weight gage read once daily. Flow partly regulated by 

reservoirs above Waco. Considerable water diverted above station for irrigation and 

municipal supply. See records of American Canal Co.'s canal near Fulshear (p. 121) 

and Richmond Irrigation Co.'s canal near Richmond (p. 121). Records of chemical 

analyses for water year 1948 are given in Water-Supply Paper 1133. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

(uaww WWWWW WOOOW

0 00000 0000re, 5088

800008

1,020 960 

930 

930 2,180 

1,480 

1,440 

1,320 

1,120 

1,260 

'M HHE HHE JAN. +r da, . 1,760 2,260 1,680 2,260 1,680 2,260 1,600 2,260 1,560 2,350 

1,520 2,350 1,520 2,350 1,720 2,260 2,620 2,440 2,800 3,660 

2,620 5,960 2,350 7,140 2,080 7,140 1,960 6,600 1,760 5,520 

1,600 4,820 1,560 4,680 1,560 4,400 1,760 4,140 2,000 3,880 

2,260 3,640 

. 

NNNNN NNNON 5 

C ...ON 

..

.WOO 

, 0 

NNNAN 01 --100 -.1:141 .".";) Mh Sn00 800 000000 n888 88888

2,170 

2,040 

1,920 

1,840 

1,720 

1,680 

1,680 

1,600 

1,480 

1,400 

80 00

0

F§M 

P

HE iEEF2';i nu.gEL 

LiEH 

Mi?) ...H HU

H . H7' 

M M NN

Nr.;,7„7„:„7 N .;(3„:.;.;.;,,;„; 

2,620 774 495 2,710 780 960 3,760 870 1,600 4,140 900 1,600 3,880 840 1,560 

4,140 769 1,560 4,270 

4,270 698 

598 1,480 1,400 5,800 664 1,360 5,960 769 1,320 

11 1,180 1,260 4,820 774 1,260 12 1,080 1,180 4,140 708 1,180 13 1,020 1,120 3,300 626 1,180 14 1,020 1,260 3,300 540 1,150 15 930 1,760 

2,530 

5,560 

8,300 

6,780 

5,240 

4,540 

3,880 

3,520 

2,990 

2,620 

2,530 

2,710 

2,800 

2,440 

2,890 

5,100 475 1,180 

5,800 410 1,480 4,400 365 1,760 2,990 334 1,440 2,220 

1,920 306 

266 1,360 

1,400 

1,840 239 1,320 1,640 

1,480 

1,290 

222 

210 

283 

1,150 990 

870 

1,080 664 769 

1,080 780 686 1,150 

1,150 758 626 560 

490 

1,080 515 455 990 455 505 870 410 

16 900 17 900 18 900 19 1,110 20 4,720 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

4,160 

2,890 

2,530 

2,170 

1,840 

1,640 

1,520 

1,400 

1,290 

1,220 

2,080 3,760 2,000 5,100 1,960 6,120 1,840 5,660 

1,760 4,960 1,800 4,140 1,920 3,410 2,260 14,200 2,530 

2,440 - - - -

Month Second- Runoff in Maximum Minimum Mean foot-days acre-feet 

October 29,209 1,120 725 942 57,940 November 46,260 4,720 900 1,542 91,760 December 107,860 7,900 1,180 3,479 213,900 

Calendar year 1947 2,410,365 49,800 685 6,604 4,781,000 

January 60,560 2,800 1,520 1,954 120,100 February 129,720 14,200 2,260 4,473 257,300 March 176,470 18,100 2,260 5,693 350,000 April 83,440 8,300 1,120 2,781 165,500 May 142,230 21,200 1,440 4,588 282,100 June 62,351 7,700 555 2,078 123,700 July 93,190 5,960 870 3,006 184,800 August 17,628 900 210 569 34,960 September 34,520 1,760 455 1,151 68,470 

Water year 1947-48 983,438 21,200 210 2,687 1,951,000 

Peak discharge (base, 39,000 sec.-ft.).- No peak above base. 
		

		

BRAZOS RIVER BASIN 103 

Brazos River at East Columbia, Tex. 

Location.- Wire-weight gage, let. 29°09,, long. 95°37,, at bridge on State Highway 35 at 

East. Columbia, Brazoria County. 1 mile downstream from Yarners Creek. Datum of gage 

is 2.9 feet below mean sea level, datum of 1929, Houston supplementary adjustment of 

1943. 

Drainage area.- 44,540 square miles, of which 9,240 square miles is probably noncontributing. 

Records available.- October 1938 to September 1939 (gage heights only), October 1939 to 

September 194U, February 1942 to September 1948 (gage heights, discharge measurements, 

and daily discharge above 8,000 second-feet); October 1940 to September 1941 (discharge 

measurements only). 

Extremes.- Maximum discharge during year, 25,600 second-feet May 15 (gage height, 14.10 

feet), from graph based on gage readings; minimum gage height observed, 1.73 feet Jan. 1 

(affected by tides). 

1938-48, Maximum gage height observed, 34.12 feet Dec. 5, 1940 (discharge not 

determined); minimum, 1.54 feet Aug. 22, 1939 (affected by tides). 

Maximum stage known, 35.3 feet Dec. 11 or 12, 1913. Flood of 1899 reached a stage 

of 35.0 feet. Stages from information by local residents. 

Remarks.- Records fair and are for main channel only. Discharge for periods below 8,000 

second-feet not published because of effect from tides. Gage read twice daily, oftener 

during high stages. Flow partly regulated by reservoirs above Waco. Considerable water 

diverted above station for irrigation and municipal supply. 

Gage height, in feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 4.84 3.62 3.68 2.58 3.93 12.25 3.29 4.27 4.33 3.48 3.73 4.36 2 5.30 3.46 4.72 2.78 3.87 12.50 3.70 4.68 6.12 3.69 4.13 4.73 3 5.23 3.54 4.32 3.36 4.00 11.30 4.10 4.77 6.13 4.58 3.98 4.54 4 5.14 3.52 4.25 3.15 4 05 10.10 4.36 4.49 5.30 4.91 4.16 5.15 5 4.19 3.49 4.02 3.35 4.40 10.05 4.15 4.61 5.66 5.40 4.14 4.27 

6 3.98 4.12 4.82 3.56 3.90 8.60 4.28 4.49 4.76 5.36 4.31 5.54 7 3.99 3.46 4.98 3.48 3.74 8.15 4.24 4.51 4.62 5.32 3.64 4.19 8 3.81 3.94 4.98 4.06 4.05 8.42 4.32 5.26 4.27 5.21 3.40 4.26 9 3.50 4.65 5.94 4.06 3.60 8.35 4.20 5.38 3.93 4.78 3.34 3.58 10 4.32 5.29 5.08 3.00 4.08 7.38 4.27 5.13 3.36 5.00 3.20 3.75 

11 4.11 4.25 4.98 4.77 5.04 7.27 4.97 4.57 3.00 5.12 2.93 4.79 12 4.76 4.72 5.00 4.66 5.14 6.60 4.84 4.34 3.62 4.56 2.84 4.90 13 4.89 5.09 4.72 3.64 5.82 6.38 4.70 4.14 3.28 3.88 2.99 4.58 14 4.70 5.42 5.97 3.24 6.55 6.88 4.18 3.73 3.14 3.92 3.65 4.24 15 4.34 3.64 7.60 3.64 6.49 5.90 4.22 8.57 3.02 4.22 3.50 5.06 

16 3.64 3.92 7.42 3.94 5.54 5.48 4.76 12.90 3.38 5.00 3.34 5.46 17 3.27 4.80 7.10 3.33 5.34 5.14 3.77 10.10 3.38 5.64 3.68 5.59 18 3.36 4.06 7.04 3.66 5.00 5.11 5.55 7.85 3.74 4.72 3.86 5.64 19 4.00 4.08 6.75 4.63 5.00 5.22 6.70 6.80 3.96 4.77 3.58 5.60 20 3.07 4.03 5.79 4.69 4.23 4.76 6.42 5.95 3.76 4.70 3.86 5.36 

21 3.76 6.20 5.12 3.70 4.34 5.16 5.69 5.52 4.10 4.47 3.32 5.20 22 3.94 5.68 4.89 4.29 5.74 4.81, 5.56 4.90 4.12 4.14 4.88 4.80 23 3.93 4.84 4.59 3.77 6.00 4.57 6.12 4.68 4.14 3.77 3.40 4.20 24 4'.05 4.40 3.77 2.80 7.09 4.66 6.15 4.42 3.21 3.70 3.76 3.72 25 4.14 4.55 3.77 4.48 6.82 3.87 6.13 4.44 3.85 3.42 3.89 4.70 

26 4.44 4.54 4.04 4.62 6.72 5.25 5.57 4.64 3.86 3.28 3.83 3.94 27 4.37 4.27 3.68 4.63 6.34 5.12 4.91 4.44 3.69 3.12 3.97 4.15 28 4.65 4.27 3.76 3.06 5.57 4.20 4.43 4.02 3.43 3.06 3.92 4.19 29 4.74 3.00 3.84 3.14 5 45 4.53 4.14 3.78 3.12 3.50 4.32 3.90 30 4.11 3.44 4.14 3.22 - 4.26 4.24 3.62 3.00 3.48 4.40 3.89 31 4.18 - 4.51 3.98 - 4.11 - 3.58 4.47 4.46 

Discharge measurements, water year October 1947 to September 1948 

Width Area Mean velocityGage(fteltrt Discharge Date (feet) (square. Ceet) (feet per second) (second-feet) 

Dec. 15 317 3,790 2.49 7.60 9,450 Feb. 25 274 3,670 2.18 6.92 8,010 Mar. 2 345 6,100 3.27 12.37 19,900 June 2 274 3,470 2.01 6.16 6,960 July 8 286 3,430 1.32 5.47 4,540 

Discharge, in second-feet, water year October 1947 to September 1948 

Date Discharge Date Discharge Date Discharge Date Discharge 

Dec. 15 9,480 Mar. 1 21,200 Mar. 6 11,300 Mar. 11 8,780 

16 9,080 2 20,100 7 10,400 May 16 21,400 

17 8,370 3 17,500 8 11,000 17 14,700 

18 8,240 4 14,700 9 10,800 18 9,760 

Feb. 24 8,370 5 14,300 10 9,060 19 8,110 

Note.- Discharge in excess of 8,000 sec.-ft. on May 15; discharge not computed because of 

tiae-Wrfect for major portion of day. 

905771 0 - 50 - 8 
104 BRAZOS RIVER BASIN 

Salt Fork Brazos River near Aspermont, Tex. 

Location.- Water-stage recorder and wire-weight gage, lat. 33°20. long. 100°14, , at 

bridge on U. S. Hignway 83, 5t miles downstream from Dove Creek and 13.2 miles northwest of Aspermont, Stonewall ounty. Datum of gage is 1,588.7 feet above mean sea 

level, datum of 1929. 

Drainage area.- 4,834 square miles, of which 2,770 square miles is probably noncontributing. 

Records available.- December 1923 to August 1925, June 1939 to September 1948. 

Extremes.- Maximum discharge during year, 12,800 second-feet June 24. 28; maximum gage 

height, 8.31 feet June 24; minimum discharge, 0.1 second-foot at times 

1923-25, 1939-48: Maximum discharge 27,400 second-feet May 16, 1947 (gage height, 

11.35 feet); no flow at times. 

Maximum stage known, 14.4 feet in December 1913. Flood of November 1934 reached a 

stage of 13.7 feet. Stages from information by local residents. 

Remarks - Records poor. Wire-weight gage read once daily. Daily discharge published only 

---57-Tow distribution of runoff. No large diversion above station. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 0.1 0.1 0.1 1.0 3.8 30 0.2 6.9 r1,280 655 465 f1.4 2 .1 .1 .1 1.8 3.8 23 .2 .4 f495 420 97 f.4 3 .1 .1 f125 2.6 2.6 18 .2 .1 f173 253 42 .5 4 .1 .1 f826 2.6 2.2 15 .2 .1 71 162 28 .2 5 .1 .1 f297 2.6 8.0 23 .2 .1 30 1,370 17 .2 

6 .1 .1 f86 1.8 12 12 .2 .1 15 1,920 10 .2 7 .1 .1 43 1.0 8.4 12 .2 .1 7.2 705 6.8 .2 8 .1 .1 23 .8 6.4 10 .2 .1 4.7 272 5.5 .2 9 .1 .1 16 .5 4.7 8.9 .2 .1 2.2 145 12 6.9 10 .1 .1 11 .2 4.3 8.4 .2 .1 .7 f264 3.8 4.8 

11 .1 .1 8.9 .2 3.4 5.1 .2 .1 2.6 60 4.8 .4 12 .1 .1 8.4 .2 1.4 7.8 .2 .1 1.4 40 28 .2 13 .1 .5 7.2 .2 2.6 7.2 .2 13 108 13 .1 14 .1 30 6.4 .2 1.8 6.4 .2 .1 78 180 6.8 .1 15 .1 8.4 5.1 .2 2.2 5.5 .4 .1 52 81 2.6 .1 

16 .1 .7 4.3 .2 1.4 4.3 .4 .1 34 42 1.0 .1 17 .1 8.3 3.8 .2 1.4 3.8 .5 .1 11 f25 .7 .1 18 .1 47 3.0 .2 1.4 3.8 .5 5.6 3.0 16 .5 .1 19 .1 11 2.2 .2 1.0 4.3 .4 25 .5 11 .5 .1 20 .1 5.1 2.2 .2 .5 3.4 .5 6.7 .2 7.2 .5 .1 

21 .1 26 1.8 .4 .4 5.1 .4 .8 .1 4.7 .5 .1 22 22 1.4 .4 .2 3.4 .4 .4 .1 2.6 .5 .1 23 6.8 1.0 .4 .2 2.6 .4 .5 13 21,550 .5 .1 24 .7 4.3 .8 .4 .4 2.2 .2 .4 2,930 f976 .5 .1 25 .2 2.6 .8 .5 .8 8 .2 19 322 f263 .5 .1 

26 .1 .7 .7 .5 235 .4 .2 12 131 105 .4 .1 27 .1 .2 .7 .7 f2P10 .2 .2 6.4 109 f54 .2 .1 28 .1 .2 .7 .8 128 .2 .2 5.1 6,670 f32 4.4 .1 29 .1 .2 .5 1.8 51 .2 .4 1.8 4,370 18 6.0 .1 30 .1 .1 .4 2.2 .1 23 .5 865 9.4 1.8 .1 31 .1 .4 1.8 .2 557 192 1.8 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 3.8 0.7 0.1 0.12 7.5 November 175.3 47 .1 5.84 348 December 1,487.9 826 .1 48.0 2,950 

Calendar year 1947 51,316.5 11,200 0 141 101,800 

January 26.8 2.6 .2 .86 53 February 2,499.3 2,010 .2 86.2 4,960 March 217.3 30 .1 7.01 431 April 31.1 23 .2 1.04 62 May 650.0 557 .1 21.0 1,290 

June 17,684.7 6,670 .1 589 35,080 July 9,942.9 1,920 2.6 321 19,720 August 762.6 465 .2 24.6 1,510 September 17.4 6.9 .1 .58 35 

Water year 1947-48 33,499.1 6,670 .1 91.5 66,450 

Peak discharge (base, 12,000 sec.-ft.).- June 24 (6 a.m.) 12,800 sec.-ft.; June 28 (9 a.m.) 12,800 sec.-ft. f Computed on basis of partly estimated gage-height record. 
				

		 		

BRAZOS RIVER BASIN 105 

White River at Plainview, Tex. 

Location.- Water-stage recorder, lat. 34°11,, long. 101°41,, at bridge on Broadway Street 

In Plainview, Hale County, 0.7 mile upstream from Atchison, Topeka & Santa Fe Railway 

bridge. Datum of gage is 3,341.1 feet above mean sea level, datum of 1929. 

Records available.- June 1939 to September 1948. 

Extremes.- Maximum discharge during year, 46 second-feet Aug. 15 (gage height, 2.82 

reet); no flow most of time. 

1939-48: Maximum discharge, 12,000 second-feet June 6, 1941 (gage height, 8.75 

feet), by slope-area method; no flow most of time. 

Maximum stage known prior to 1941, about 6.50 feet in May 1927 (discharge, about 

1,100 second-feet), from information by local resident. Flood of May 24, 1937, 

reached about same stage as that of May 1927. 

Remarks.- Records good. No diversion above station. 

Diacharge, in second-feet, water year October1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 0 2 0 3 0 4 0 5 .2 

6 0 7 0 8 o 9 0 10 0 

11 0 12 0 13 0 14 0 15 0 

16 0 17 0 18 0 19 0 20 0 

21 0 22 0 23 0 24 0 25 0 

26 .1 27 .1 28 0 29 0 30 

31 -

[100000 000 00000 00000 00000 00000 

., 

0000000000.0000000000000,000000 

M 0000000000000000000

0000 00.

000000 00000 00000 00000 00000 00 00 

w 

. 00000 

000000000

000000 00000 

00000 

Second- Runoff in Month Maximum Minimum Moan foot-days acre-feet 

October 0 November 0 December 0 

Calendar year 1947 735.0 _ -

January 0 February .4 

000MI

O0 

M 1 

000 0 :000000000 

Cm t0 r-toen v • 

0 

0 

0 

2.01 1,460 

0 0 .01 .8 0 0 .03 1.6 .05 3.4 

March . 0 April 

May .8 1.7 June 1.4 .05 July 0 0 August 9.3 .30 September 1.4 .05 2.8 

Water year 1947-48 15.0 8.9 0 .04 29 

Pea isc arge see, sec.-ft.).- Aug. 15 a.m.) sec.-ft. 

2.8 

0 

18 
		

						

- - 

106 BRAZOS RIVER BASIN 

Clear Fork Brazos River at Nugent, Tex. 

Location.- Water-stage recorder, lat. 32°41', long. 99°40', at county highway bridge in 

Nugent, Jones County, 4 miles upstream from Deadman Creek. 

Drainage area.- 2,220 square miles. 

Records available.- February 1924 to September 1948. 

Average discharge.- 24 years, 150 second-feet 

Extremes.- Maximum discharge during year, 6,720 second-feet Oct. 27 (gage height, 13.87 

feet); no flow at times. 

1924-48: Maximum discharge observed, 47,000 second-feet Sept. 8, 1932 (gage height, 

27.05 feet, site then in use), from rating curve extended above 25,000 second-feet; no 

flow at times. 

Maximum stage known, about 30.0 feet in 1876, from information by local residents. 

Remarks.- Records fair. Flow partly regulated by reservoirs in Elm Creek Basin (see p. 109) 

and Lakes Sweetwater and Trammel in Sweetwater Creek Basin, which have a combined capacity of about 106,000 acre-feet. Diversions above station for municipal supply and 

oil-field operation materially affect low flow. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 0 20 6.8 9.6 312 3.2 2.0 27 7.3 42 44 

2 0 14 6.8 38 24 3.5 1.3 12 5.9 113 40 

3 0 12 93 14 13 3.9 1.8 539 4.6 127 6.8 

4 0 10 335 10 12 4.6 2.3 404 3.2 55 6.8 

5 0 9.0 430 9.5 10 5.5 2.3 90 162 10 2.3 

6 0 8.4 114 9.0 10 5.5 2.3 20 470 5.9 1.3 

7 .1 7.3 60 9.0 9.0 5.9 1.8 9.0 1,190 3.5 .8 O HOW Am iA ;D ip ic,6

8 .1 6.4 23 9.0 9.0 6.4 1.3 7.9 1,140 2.5 .4 9 6 4 5.8 15 8.4 10 5.9 45 6.4 662 2.0 .4

10 65 1,.4 12 8.4 10 5.5 9.8 5.5 74 3.2 .1 

11 7.9 6.4 10 8.4 9.5 5.0 2.8 5.0 51 2.5 .1

12 6.4 5.9 9.5 8.4 9.5 4.6 2.5 4.6 206 1.5 1.3

13 3.9 5.9 9.0 8.4 9.0 4.6 2.3 73 46 .8 2.7

14 2.5 32 8.4 7.9 9.0 5.0 1.8 60 32 .5 .6 15 2.0 215 8.4 7.9 9.0 5.0 1.8 20 28 .4 .2

16 1.3 33 8.4 7.9 7.9 5.5 2.3 8.4 14 .1 .1 1.3 14 7.9 7.9 7.9 5.9 117 4.6 10 .1 .1 9.5 5.0 15 2.8 7.3 0 0 16 3.9 71 2.0 5.90 0 

17 

18 1.8 112 8.4 7.3

19 1.5 360 8.4 7.3

20 1.3 56 8.4 7.9 18 4.2 9.0 .6 5.0 .7 0

21 1.1 20 7.9 7.9 48 3.5 3.9 1.3 4.6 2.2 0 22 1.0 36 7.3 7.9 365 3.5 2.3 1.1 3.9 .3 0 .8 34 7.3 7.9 206 f3.5 1.1 .6 15 .1 0 22 3.2 .8 .6 5.50 0 11 3.2 1.5 .5 207 0 0 

23 

24 .8 19 7.9 7.9 25 275 15 7.3 8.4

26 1,540 11 7.3 8.4 7.9 3.2 21 272 126 0 0 27 5,690 9.0 7.3 8.4 5.5 3.2 123 26 54 0 0 28 916 7.9 6.8 8.4 4.6 2.8 138 435 10 1.2 0 29 271 7.9 6.8 8.4 3.9 2.8 99 94 5.9 74 0 30 93 7.3 7.3 8.4 3.5 2.5 30 14 3.5 164 0 31 37 8.4 7.9 3.2 60 2.3 280 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 8,927 5,690 0 288 17,710 November 1,107.6 360 5.9 36.9 2,200 December 1,264 430 6.8 40.8 2,510 

Calendar year 1947 28,917.5 5,690 0 79.2 57,370 

January 294.1 38 7.3 9.49 583 February 876.4 249 6.4 30.2 1,740 

March 1,204.9 365 3.2 38.9 2,390 April 130 6.4 2.5 4.33 258 

May 776 138 .8 25.0 1,540 

June 2,146.9 539 .5 71.6 4,260 

July 4.561.9 1,190 2.3 147 9,050 Auguet 892.5 280 0 28.8 1,770 

September 108 44 0 3.60 214 

Water year 1947-48 22,289.3 5,690 0 60.9 44,220 --- -. . -_ ... .- _ _-_ Peak discharge {base,2,300 . Oct. . a.m.), sec.-ft. f Computed on basis of partly estimated gage-height record. 

Note.- No gage-height record June 6-17; discharge computed on basis of recorded range in stage, wei1177 records, and records for station at Fort Griffin. 
BRAZOS RIVER BASIN 107 

Clear Fork Brazos River at Fort Griffin. Tex. 

Location.- Water-stage recorder, lat. 32°56., long. 99°13., at bridge on Fort GriffinThrockmorton highway, half a mile east of Fort Griffin, Shackelford County, and 1.3 

miles upstream from Mill Creek. Datum of gage is 1,174.09 feet above mean sea level, 

datum of 1929, Fort Worth Supplementary adjustment of 1942. 

Drainage area.- 3,974 square miles. 

Records available.- December 1963 to September 1948. 

Average discharge.- 24 years (1924-48), 276 second-feet. 

Extremes.- Maximum discharge during year, 5,350 second-feet Oct. 29 (gage height, 15.18 

feet); no flow at times. 

1923-48: Maximum discharge, 33,600 second-feet Sept. 10, 1932 (gage height, 35.09 

feet); no flow at times. 

Maximum stage known, about 38.0 feet in 1900, from information by local residents. 

Remarks.- Records good. Flow partly regulated by reservoirs above Nugent. Diversions 

---YE577g station for Irrigation, municipal supply, and oil-field operation materially 

affect low flow. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 0 120 37 25 6.2 212 9.8 0 1,070 296 18 2 0 78 34 12 6.6 355 8.1 0 1,470 142 18 0 3 0 52 29 9.3 7.0 186 6.2 0 456 84 184 46 4 0 35 48 11 6.6 82 5.8 0 239 55 235 30 5 0 26 592 18 7.0 43 5.8 0 535 46 142 19 

6 0 20 830 24 8.5 28 6.6 0 170 1,850 102 15 7 0 16 495 25 8.9 19 6.6 0 107 1,670 53 14 0 12 213 20 8.5 15 9.3 0 62 1,700 32 9.3 8 0 8.9 107 16 8.5 12 8.9 0 36 1,310 20 7.7 10 0 7.0 61 14 8.5 10 8.5 53 22 900 13 6.2 

11 0 5.4 39 13 8.5 8.1 6.2 591 15 254 8.9 4.7 12 0 3.7 29 12 8.1 7.0 4.7 122 11 128 5.4 3.4 13 0 3.7 24 9.8 7.7 6.2 3.1 65 8.5 127 3.1 1.9 14 0 4.7 19 8.9 7.7 4.7 2.8 30 6.6 163 2.1 1.2 15 0 4.0 17 8.5 7.0 4.4 1.9 19 4.7 73 1.0 .6 

16 0 85 15 7.7 6.6 3.4 1.3 12 17 41 .6 .4 17 0 160 13 6.6 7.0 2.8 .8 7.4 18 26 .1 .2 18 0 136 12 6.2 7.4 2.3 .5 4.7 17 18 0 0 19 0 136 10 7.0 7.0 2.1 .2 3.4 20 13 0 0 20 0 324 8.1 7.0 5.0 2.3 .1 2.3 13 8.5 0 0 

21 0 253 6.6 6.6 4.4 2.6 .1 1.5 8.5 5.8 0 0 22 0 113 6.6 6.2 4.7 2.3 .1 8.1 5.0 4.0 0 0 23 0 85 8.5 6.2 6.6 2.3 .1 30 236 3.4 0 24 0 75 9.3 6.2 7.4 412 .1 92 770 2.3 0 0 25 0 65 9.3 5.8 8.9 153 .4 138 1,540 1.5 0 0 

26 129 58 9.3 5.8 26 80 .3 1,330 666 1.5 0 0 27 458 49 8.9 6.6 62 49 .2 456 233 1.3 0 28 3,600 45 8.5 6.6 11 31 .1 208 1,130 37 0 0 29 2,680 42 8.5 6.6 223 22 .1 210 1,590 96 0 30 332 39 8.1 6.6 17 0 162 1,100 46 0 0 31 221 135 6.2 13 787 28 0 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 7,420 3,600 0 239 14,720 November 2,061.4 324 3.7 69.7 4,090 December 2,850.7 830 6.6 92.0 5,650 

Calendar year1947 76,632.9 7,290 0 210 152,000 

January 330.4 25 5.8 10.7 655 February 502.3 223 4.4 17.3 996 March 1,789.5 412 2.1 57.7 3,550 April 98.7 9.8 0 3.29 196 May 4,332.4 1,330 0 140 8,590 June 11,576.3 1,590 4.7 386 22,960 July 9,131.3 1,850 1.3 295 18,110 August 838.2 235 0 27.0 1,660 September 159.6 46 0 5.32 317 

Water year 1947-48 41,090.8 3,600 0 112 81.490 Peak discharge (base, 3,900 sec.-ft.).- Oct. 29 (1 a.m.) 5,350 sec.-ft.; May 26 (7 p.m ) 4,200 sec.-ft. Note.- No gage-height record Nov. 23 to Dec. 17, Aug. 18 to 3ept. 2, Sept. 17-20; discharge com- puTT(75n basis of recorded range in stage, engineer's notes, weather records, and records for sta- tions at Nugent and near Crystal Falls. Gage-height record doubtful Apr. 29 to May 9 because of 

extremely low stage; discharge computed on basis that stage was known to be extremely low. 
108 BRAZOS RIVER BASIN 

Clear Fork Brazos River near Crystal Falls, Tex. 

Location.- Water-stage recorder above concrete dam, lat. 32°54', long. 98°50', at Texas 

Co.'s pumping plant, 2f miles downstream from Hubbard Creek and 3,! miles northeast 

of Crystal Falls, Stephens County. Datum of gage is 1,055.25 feet above mean sea 

level, datum of 1929. 

Drainage area.- 5,658 square miles. 

Records available.- July 1928 to September 1948. 

Average discharge.- 20 years, 462 second-feet. 

Extremes.- Maximum discharge during year, 7,560 second-feet Oct. 26, May 27; maximum gage 

-height, 12.93 feet Oct. 26; no flow at times. 

1928-48: Maximum discharge, 35,800 second-feet June 11, 1941 (gage height, 33.45 

feet), from rating curve extended above 23,000 second-feet; no flow at times. 

Maximum stage known, about 34.0 feet in 1900, present site and datum, from information by local residents. 

Remarks.- Records good. Flow partly regulated by reservoirs above Nugent. Diversions 

---TETVF station for irrigation, municipal supply, and oil-field operation materially 

affect low flow. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

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 

NM N,W W W W .WNW

ON ^000.0 0000

000000 00000 0000

000000

182 20 86 5.5 186 9.7 2,020 874 108 2.3 103 18 56 5.5 198 6.9 1,370 284 82 .9 72 22 26 5.5 334 6.9 1,140 153 35 .1 50 16 5.5 169 3.1 296 99 121 0 35 145 11 5.5 89 2.3 333 1,240 197 0 71 

26 718 9.7 5.5 58 .9 360 1,320 117 0 18 2,280 11 5.5 40 .! 142 1,640 86 0 14 895 20 6.9 29 0 86 1,640 47 0 8.3 265 24 6.9 24 0 58 1,720 33 0 6.0 184 20 6.9 16 0 37 1,400 22 0 

5.5 128 16 8.3 12 53 24 795 14 0 5.5 82 12 9.7 9.7 1,000 18 280 6.9 0 6.9 58 11 9.7 8.3 233 16 157 3.1 0 8.3 44 9.7 8.3 5.5 103 216 202 1.2 0 8.3 35 8.7 8.3 4.7 52 27 189 .3 0 

6.9 29 6.9 8.3 4.7 16 22 5.5 8.3 3.9 159 26 4.7 8.3 3.9 135 24 4.7 6.9 3.9 120 20 4.7 6.9 3.9 

322 16 4.7 5.5 3.9 224 11 4.7 6.9 3.9 150 9.7 4.7 6.9 3.1 89 8.3 4.7 8.3 2.3 61 5.5 4.7 9.7 274 

42 5.5 4.7 83 139 33 5.5 4.7 200 72 rN.:1 (

:-.0 00

000 00 0

31 6.9 96 0 0 18 5.5 58 0 0 20 2.3 35 0 0 11 .6 22 0 0 3.9 3.1 16 0 0 

1.5 6.9 9.7 0 0 .9 6.9 8.3 0 0 0 13 5.5 0 0 0 668 4.7 0 0 80 1,160 3.1 0 0 

401 3,960 3.1 0 0 6,150 3,000 1.5 0 0 40 5.5 4.7 206 50 644 1,200 5.5 0 0 33 8.3 4.7 64 35 280 3,340 9.7 0 0 26 9.7 4.7 - 24 215 1,930 28 .2 0 - 20 4.7 - 16 443 - 58 3.1 -

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 13,928 4,850 0 449 27,630 November 2,006.6 322 5.5 66.9 3,980 December 5,191.0 2,280 5.5 167 10,300 _ Calendar year 1947 87,204.5 6,330 0 239 173,000 

January 414.9 86 4.7 13.4 823 February 732.5 206 5.5 25.3 1,450 March 1,826.7 334 2.3 58.9 3,620 April 1,294.1 595 0 43.1 2,570 May 9,770.4 6,150 0 315 19,380 June 21,446.2 3,960 .6 715 42,540 July 12,357.1 1,720 1.5 399 24,510 August 876.8 197 0 28.3 1,740 September 3.3 2.3 0 .11 6.5 

Water year 1947-48 69,847.6 6,150 0 191 138,500 

Peak discharge (base, 6,000 sec.-ft.).- Oct. 26, (7:30 a.m.) 7,560 sec.-ft.; May 27 (9:30 a.m.) 7,,60 sec.-ft. 
		

		

		

		

BRAZOS RIVER BASIN 

Fort Phantom Hill Reservoir near Nugent, Tex. 

Location.- Staff gage, lat. 32°37', long. 99°40', on outlet tower at dam on Elm Creek, 

4 miles upstream from Clear Fork Brazos River and 5 miles south of Nugent, Jones 

County. Datum of gage is 1,580.0 feet above mean sea level. 

Drainage area.- 478 square miles. 

Records available.- July 1940 to September 1948. 

Extremes.- Maximum contents observed during year, 41,700 acre-feet Dec. 11-15 (gage 

neight, 44.6 feet); minimum observed, 33,240 acre-feet Sept. 29, 30 (gage height, 41.1 

feet). 

1940-48: Maximum contents observed, 80,900 acre-feet Oct. 17, 1941 (gage height, 

56.8 feet); minimum observed, 20,290 acre-feet Aug. 12, 13, 1940 (gage height, 34.7 

feet). 

Remarks.- Reservoir is formed by earth-fill dam with rock riprap face; dam completed and 

serge began in October 1938. Capacity, 69,550 acre-feet between gage heights 1.6 

feet (sill of lowest outlet gate) and 54.0 feet (crest of spillway). Dead storage, 

450 acre-feet. Records given herein represent total-contents. Water is used for 

municipal supply. Gage read once daily at 8 a.m. Lake Abilene on Elm Creek, Lake 

Kirby on Cedar Creek, and Lytle Lake on Lytle Creek (combined capacity, 19,300 acrefeet) are smaller reservoirs above station in Elm Creek Basin. 

Cooperation.- Gage-height record and capacity table furnished by city of Abilene. 

Monthly gage height and contents, water year October 1947 to September 1948 

Change in contents Gan.e le-irnht Contents 

(acre-feet) during month 

(acre-feet) 

Sept.30 43.1 38,040 Oct 31 44.0 40,200 +2,160 

Nov 30 43.4 38,760 -1,440 Dec. 31 44.2 40,700 +1,940 

Calendar year 1947 - - -2,500 

Jan. 31 44.0 40,200 -500 Feb. 29 44.1 40,450 +250 

Mar. 31 44.0 40,200 -250 

Apr. 30 43.3 38,520 -1,680 

May 31 43.1 38,040 -480 June 30 43.7 39,480 +1,440 

July 31 42.9 37,560 -1,920 

Aug. 31 42.0 35,400 -2,160 

Sept.30 41.1 33,240 -2,160 

Water year 1947-48 -- -4,800 

t Gage height at 8 a.m. 

109 
110 BRAZOS RIVER BASIN 

Paluxy Creek at Glen Rose, Tex. 

Location.- Water-stage recorder, lat. 32°13'50", long. 97°46'30", at bridge on U. S. 

Highway 67, 1 mile upstream from Cross Branch, 1.2 miles southwest of Glen Rose, 

Somerville County, and 4.7 miles upstream from mouth. Datum of gage is 609.7 feet 

above mean sea level, datum of 1929, Fort Worth supplementary adjustment of 1942 

Drainage area.- 399 square miles. . 

Records available.- May 1947 to September 1948. October 1923 to September 1925 at site 

1.b miles downstream; records equivalent except for inflow from Cross Branch. 

Extremes.- Maximum discharge during year, 11,000 second-feet Feb. 25 (gage height, 13.92 

feet); minimum, 1.0 second-foot Aug. 24, 25. 

1924-25, 1947-48: Maximum discharge not determined but probably occurred Apr. 25, 

1924, at gage height 7.10 feet, site and datum then in use. 

Maximum stage known, 27.2 feet Apr. 17, 1908, present site and datum. Flood of 

May 21, 1922, reached a stage of 26.0 feet, present site and datum. Flood of November 

1918 reached about same stage as flood of May 21, 1922, from information by local 

resident. 

Remarks.- Records excellent except those for period of no gage-height record, which are 

fair. No diversion above station. 

Hating table, water year 1947-48 (gage height, in feet, and discharge, in second-feet) (Shifting-control method used Apr. 15 to May 9, May 21-25, July 15 to Sept. 8, Sept. 13-30) 

2.3 0.7 3.0 99 5.0 1,090 2.4 1.3 3.2 160 6.0 1,740 2.5 5.5 3.4 235 7.0 2,470 2.6 15 3.8 420 8.0 3,330 2.7 31 4.2 630 9.1 4,460 2.8 51 4.6 850 

Discharge, in second -feet, water year October 1947 to September 1148 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 3.8 7.5 7.5 494 15 573 22 14 24 99 4.4 4.4 2 3.8 6.8 8.3 87 15 319 22 14 21 50 4.4 3.8 3 3.8 6.8 9.6 49 16 134 22 14 19 393 4.4 2.8 4 3.8 6.8 15 35 16 105 22 14 16 436 3.8 2.4 5 3.3 6.1 11 26 16 108 22 14 15 86 3.3 2.4 

6 3.3 9.8 11 21 16 94 22 16 12 70 3.3 1.7 7 2.8 22 763 18 16 86 22 16 12 51 3.3 1.4 8 3.8 9.0 82 15 15 76 22 14 10 31 2.8 47 9 4.4 6.1 45 14 15 71 22 12 10 114 2.8 425 10 3.8 6.1 33 14 14 62 22 18 9.1 38 2.4 34 

11 2.8 6.1 26 12 14 55 22 691 9.1 24 2.4 14 12 2.4 5.5 24 12 15 51 21 97 8.3 22 2.0 9.1 13 2.4 6.1 22 12 18 49 22 41 8.3 26 2.0 6.8 14 2.4 44 21 11 14 49 21 28 7.5 19 1.7 5.5 15 2.0 51 19 11 12 49 21 21 7.5 15 1.7 5.0 

16 2.4 17 68 11 12 45 21 18 6.8 14 2.8 5.0 17 2.4 12 37 10 12 41 19 16 6.1 12 2.4 5.0 18 2.0 11 22 10 12 39 19 17 5.5 11 1.7 5.0 19 1.7 10 19 11 12 39 18 100 5.5 10 1.3 5.0 20 1.7 9.1 15 15 11 37 18 26 5.0 9.1 1.2 5.0 

21 1.4 9.1 14 16 11 39 18 18 4.4 8.3 1.2 5.0 22 1.4 10 14 16 11 67 16 15 3.8 7.5 1.2 4.4 23 1.4 10 12 15 11 45 16 12 4.4 6.8 1.1 4.4 24 1.7 10 11 14 12 37 16 11 62 6.8 1.1 3.8 25 306 9.1 11 12 4,450 35 33 18 59 6.1 1.2 3.3 

26 153 9.1 11 12 450 33 37 317 574 5.5 9.2 2.8 27 38 8.3 11 14 378 29 28 1,300 190 6.1 70 2.4 28 18 8.3 10 12 190 28 21 138 194 5.5 19 2.4 29 12 7.5 10 16 116 28 16 62 490 4.4 9.1 2.4 30 10 7.5 10 14 28 15 41 62 4.4 6.8 2.4 31 8.3 - 371 16 - 26 31 - 4.4 5.0 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 610.0 306 1.4 19.7 1,210 November 347.7 51 5.5 11.6 690 December 1,743.4 763 7.5 56.2 3,460 

Calendar year _- - - _ 

January 1,045 494 10 33.7 2,070 February 5,915 4,450 11 204 11,730 March 2,477 573 26 79.9 4,910 April 638 37 15 21.3 1,270 May 3,164 1,300 11 102 6,280 June 1,861.3 574 3.8 62.0 3,690 July 1,595.9 436 4.4 51.5 3,170 August 179.0 70 1.1 5.77 355 September 623.6 425 1.4 20.8 1,240 

Water year 1947-48 20,199.9 4,450 1.1 55.2 40,080 

Peak dischargebase, 2,500 sec.-ft. .- Dec. 7 (7 a.m. 3,060 3?C -ft.; Feb. 25 (10:30 a.m.)11,003 sec.-ft.; May Il (9:30 a.m.) 2,880 sec.-ft. Note.- No gage-height record Dec. 8-16; discharge computed on basis of estimated gage-height rec- orargat discharge measurement made Dec. 16. 
BRAZOS RIVER BASIN 111 

Nolands River at Blum, Tex. 

Location.- Staff gage, lat. 32°08'49", long. 97°23'48", at Gulf, Colorado & Santa Fe 

Hallway bridge at Blum, Hill County, 2.3 miles downstream from Mustang Creek, 3.7 

miles upstream from Rock Creek, and 8.7 miles upstream from mouth. Datum of gage is 

556.5 feet above mean sea level, datum of 1929. Former gage at same site and datum. 

Drainage area.- 275 square miles. 

Records available.- July 1924 to September 1925, November 1947 to September 1948. 

Extremes.- Maximum discharge during period November 1947 to September 1948, 12,700 sec- ond-feet Dec. 7 (gage height, 15.60 feet, from floodmarks); minimum observed, 0.5 

second-foot Sept. 2. 

1924-25, 1947-48: Maximum discharge, that of Dec. 7, 1947; no flow at times in 1924-25. Maximum stage known since 1887, 35.6 feet on May 8, 1922, from information by 

Gulf, Colorado & Santa Fe Railway Company. 

Remarks.- Records good. Gage read twice daily, oftener during high stages. No diver- sions above station. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 

2 

3 

4 

5 

4.3 

4.0 

5.0 131 

70 

344 

94 

71 

55 

48 

58 

64 

75 

73 

71 

925 

938 

151 

124 

671 

38 

35 

36 

37 

38 

16 

16 

18 

223 

21 

13 113 12 93 11 1,740 9.6 545 8.3 r2,200 

3.8 

3.3 

3.0 

2.6 

2.1 

1.1 

.6 

1.0 

.9 

.8 

6 

7 

8 

9 

10 

30 4,840 285 

71 

45 

44 

43 

43 

43 

40 

64 

60 

66 

57 

54 

200 

139 

122 

127 

108 

41 

40 

36 

34 

31 

16 

16 

15 

15 

16 

8.3 

7.4 

6.7 

5.7 

5.4 

752 

82 

57 

33 

42 

1.8 

1.6 

1.6 

1.6 

1.6 

1.0 

1.0 

1.8 233 

21 

11 

12 

13 

14 

15 

33 

28 

26 154 23 106 1,650 

38 

36 

31 

32 

32 

55 

57 

51 

60 

57 

87 

80 

90 

87 

82 

31 

30 

34 

28 

28 

3,940 374 

668 

94 

57 

5.4 

5.0 

4.7 

4.0 

3.8 

28 

23 

19 

18 

16 

7.4 

4.3 

3.8 

3.5 

3.0 

16 

17 

18 

19 

20 

31 

13 

8.7 

8.3 

6.7 

273 

92 

17 

60 

50 

33 

29 

28 

32 

42 

54 

48 

44 

44 

41 

73 

64 

64 

68 

57 

27 

24 

23 

21 

20 

38 

30 

30 

356 

62 

3.0 

2.6 

2.6 

2.6 

2.6 

14 

13 

11 

9.6 

9.7 

1.5 

1.0 

.8 

.6 

.8 

3.0 

3.0 

3.0 

2.6 

2.6 

21 

22 

23 

24 

25 

5.4 

13 

26 

14 

9.2 

47 

44 

40 

37 

35 

82 

62 

48 

36 

31 

35 

33 

37 

42 2,520 

71 

154 

100 

66 

58 

20 

20 

19 

17 

175 

32 2.3 27 1.6 21 1.6 19 1,250 18 64 7.4 

6.7 

6.4 

6.0 

5.4 

.9 

.6 

.6 

.6 

.6 

2.6 

2.6 

2.6 

2.3 

1.8 

26 

27 

28 

29 

30 

31 

7.8 

6.0 

4.7 

3.5 

4.0 

33 

33 

33 

32 

31 

47 

32 

38 

38 

41 

40 

57 

1,250 

1,190 254 

160 

60 

51 

44 

44 

44 

43 

60 

32 

23 

19 

17 

16 1,610 19 250 19 250 18 427 17 50 15 

4.7 

4.3 

4.3 

3.8 

3.5 

3.8 

1.1 

6.5 

28 

6.3 

2.1 

1.4 

1.6 

1.6 

1.6 

1.4 

1.4 

Month Secondfoot-days Maximum Minimum Mean Runoff in 

acre-feet 

Octob1er 

November14-30 421.3 154 3.5 24.8 836 December 8,149.3 4,840 4.0 263 16,160 

Calendar year 

January 

February 

March 

April 

May 

June 

July 

August 

September 

1,663 

6,674 

4,992 

1,034 

6,242 

4,030.2 

5,873.6 82.9 

317.9 

344 2,520 938 

175 3,940 

1,610 

2,200 28 

233 

28 

33 

43 

17 

15 

1.6 

3.5 

.6 

.6 

53.6 

230 

161 

34.5 

201 

134 

189 2.67 

10.6 

3,300 

13,240 

9,900 

2,050 

12,380 

7,990 

11,650 164 

631 

The period 78,300 

Peak discharge (base, 5,000.sec.-ft.)._ Dac. 7 (3 p.m. 12,700 sec.-ft.; Feb. 25 (2 p.m.) 7,090 

sec.-ft.; May 11 (2 p.m.) 10,900 sec.-ft.; July 5 (7 p.m.) 7,480 sec.-ft. 
112 BRAZOS RIVER BASIN 

Aquilla Creek near Aquilla, Tex. 

Location.- Water-stage recorder, lat. 31°51', long. 97°12', at bridge on Abbot-Aquilla 

county road, three-quarters of a mile upstream from Palls Branch and 1 mile southeast 

of Aquilla, Hill County. 

Drainage area.- 309 square miles. 

Records available.- December 1924 to August 1925, December 1938 to September 1948. 

Extremes.- Maximum discharge during year, 8,260 second-feet May 11 (gage height, 26.72 

feet); no flow at times. 

1924-25, 1938-48: Maximum gage height, 30.84 feet May 2, 1944 (discharge not determined); no flow at times. 

Maximum stage known, 34 feet Aug. 31, 1887, from information by local resident. 

Flood of Sept. 27, 1936, reached a stage of about 33 feet, from floodmark. Peak discharge of this flood as determined about 9 miles below station, 84,500 second-feet, by 

slope-area method (drainage area, 370 square miles). 

Remarks.- Records good except those for periods of no gage-height record, which are poor. 

No large diversion above station. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 0.2 0.2 1.6 179 15 19 11 5.1 8.2 11 F. 

2 .2 .2 2.0 42 19 87 10 4.0 6.2 55 .

3 .2 .2 2.9 14 25 36 9.7 3.6 4.8 155 .

4 .2 .2 6.2 7.7 26 21 10 3.1 4.2 475 

5 .2 .2 5.1 4.6 29 19 10 3.3 3.3 204 

0. 0 

6 .2 .2 2.0 2.9 24 22 10 3.3 2.4 75 0

7 .2 2.9 1.6 2.5 24 22 9.7 2.7 1.8 75 8 .2 12 161 2.0 32 20 8.5 2.4 1.2 536 0

9 .2 2.4 29 2.0 52 21 7.7 1.9 .9 72 0

10 .2 1.3 12 1.9 30 21 6.9 1.6 .7 11,590 00

11 .2 .7 7.2 1.5 26 17 6.7 3,510 .6 73 12 

13 .2 .2 .5 

.5 5.3 

3.8 1.6 

1.5 

27 

20 12 17 7.2 2,930 11 137 .5 

.4 21 12 

00

14 .2 .7 4.2 1.6 24 19 56 253 .2 7.0 0

15 .2 1.0 68 1.2 21 17 20 64 .2 00

4.2 

16 .2 1.8 284 2.4 18 16 11 44 .2 2.4 0

17 .2 .9 29 4.0 17 14 8.0 34 .2 1.4 18 .2 .7 13 3.8 15 13 6.4 156 .2 1.0 0

19 

20 .2 

.2 .6 

.6 8.8 

6.7 3.1 4.0 15 14 13 

14 5.1 1,280 3.6 222 .2 

.1 00 0 

.9 

.7 

21 .2 .9 5.7 13 11 14 3.1 41 .1 .7 0

22 .1 .9 5.1 18 9.7 47 2.5 29 .1 0

.6 

23 .1 1.4 4.6 13 10 45 2.2 21 .1 .5 24 0 2.0 4.6 11 11 26 2.2 16 1.1 .4 0

25 0 1.5 4.0 8.2 13 18 463 14 36 0 0

.4 

26 0 1.2 3.6 7.7 15 16 234 13 47 .2 27 

28 

1.0 

.7 .9 1.4 3.3 3.6 8.5 7.5 32 

56 14 11 23 13 18 

18 118 36 

00

g.3 

.2 29 .3 1.5 3.6 7.2 27 10 8.5 15 618 .2 0

30 .2 1.5 3.8 6.7 11 6.4 12 36 .2 0

31 .2 20 10 - 11 9.4 - .2 0

Month Secondfoot-days Maximum Minimum Mean Runoff in 

acre-feet 

October 6.8 1.0 0 0.22 13 November 41.0 12 .2 1.37 81 December 715.3 284 1.6 23.1 1,420 _ Calendar year 1947 26,846.3 4,620 0 73.6 53,260 

January 

February 

March 

April 

May 

June 

July 

August 

September 

394.1 

657.7 

663 

986.4 8,867.4 928.9 3,375.5 .6 

0 

179 

56 

87 

463 3,510 618 1,590 .2 

0 

1.2 

9.7 

10 

2.2 

1.6 

.1 

.2 

0 

0 

12.7 

22.7 

21.4 

32.9 

286 

31.0 

109 .02 

0 

782 1,300 

1,320 

1,960 

17,590 

1,840 

6,700 1.2 

0 

Water year 1947-48 16,636.7 3,510 0 45.5 33,010 

Peak discharge (base, 7,000 sec.-ft.).- May 11 (3:15 p.m.) 8,260 sec.-ft. 

g Computed from graph based on gage readings. 

Note.- No gage-height record July 1, 13-26, 28, 29; discharge computed on basis of estimated gage heigh- ii, weather records, and records for nearby stations. 
.

BRAZOS RIVER BASIN 113 

North Bosque River near Clifton, Tex. 

Location.- Staff gage above spillway of masonry dam, lat. 31°48', long. 97°35', 730 feet 

ups ream from Gulf, Colorado & Santa Fe Railway bridge and 1.4 miles northwest of 

Clifton, Bosque County. Datum of gage is 622.7 feet above mean sea level, datum of 

1929. 

Drainage area.- 974 square miles. 

Records available.- November 1923 to September 1948. 

Average discharge.- 25 years, 228 second-feet. 

Extremes.- Maximum discharge during year, 31,900 second-feet Feb. 25 (gage height, 19.9 

feet, from floodmark); minimum, 0.7 second-foot Aug. 22-25. 

1923-48: Maximum discharge, 39,000 second-feet Apr. 22, 1945 (gage height, 23.2 

feet, from floodmark); no flow at times. 

Flood of May 9, 1922, reached a stage of 25 feet. from information by local resident. 

Remarks.- Records good except those for periods of doubtful or no gage-height record, 

which are fair. Railway company pumps about 100,000 gallons a day (0.15 second-foot) 

from pool formed by control dam a third of a mile below gage. Gage read twice daily, 

oftener during high stages. 

Revisions (water years).- W 788: 1924-33. W 1058: 1945(M). 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

:'

...,.. ?.?.?T,?.!. .tt!,0,=',-'1(

=n,.., ww '!..V . " 01

6 00000 0.... 

.,,, OGN NN .,N

NN MMI M 

.-100.00+ 

H2,9M 1,-.4''-;.=' 7 ,'"4 c" :;" uzzF. 

:,.,,

1 4.1 1.4 7.5 417 

2 4.1 3.6 7.5 204 

3 4.1 3.6 11 120 

4 3.6 3.6 18 58 5 3.6 3.6 17 35 

271 48 20 46 104 4.1 895 43 18 39 101 4.1 238 39 17 37 487 4.1 144 39 17 34 465 4.1 133 37 14 21 254 4.1 

6 3.6 3.6 16 28 129 32 14 20 620 3.6 7 3.0 3.0 1.050 23 8 4.1 3.0 664 18 9 5.2 3.0 164 18 10 4.1 2.5 68 17 

11 3.6 2.0 46 17 12 3.6 1.6 28 16 13 3.6 1.3 21 14 

126 28 11 18 182 3.6 123 28 10 18 221 3.6 

117 24 9.2 18 172 3.0 107 24 9.2 18 733 2.8 

96 24 4,210 16 196 2.5 

86 26 788 11 98 1.6 83 56 107 8.3 63 1.6 14 3.0 9.1 20 13 92 39 66 6.6 53 1.6 15 3.0 18 24 13 92 30 41 6.6 32 1.6

16 3.0 417 23 16 86 24 28 5.8 21 1.6 17 71 17 34 16 77 24 20 5.2 17 1.3 18 6.6 10 43 14 19 3.0 6.6 32 13 20 2.5 5.8 26 .11 

21 2.0 5.2 21 11 22 2.0 16 18 11 23 1.8 21 18 11 24 1.8 8.3 16 11 25 1.8 8.3 13 11 

26 1.7 8.3 13 1) 27 1.6 8.3 10 11 28 1.6 7.5 10 11 29 1.5 7.5 10 11 30 1.4 7.5 10 bll 31 1.4 28 bll 

Month 

October 

November 

December 

Calendar year 1947 

January 

February 

March 

April 

68 21 645 5.2 14 1.3 66 21 280 4.1 11 1.1 66 21 75 3.6 10 .9 

63 18 37 3.0 7.5 .9 111 18 28 3.0 7.5 .8 

144 17 17 3.0 6.6 .7 95 16 13 4,110 5.8 .7 71 4118 11 336 5.2 .7 

63 468 225 373 5.2 103 58 34 3,250 292 4.7 55 53 34 700 166 4.7 66 53 32 166 390 4.7 51 48 26 86 270 4.7 32 

46 63 4.7 23 

Second- Runoff in Maximum Minimum Mean foot-day. acre-feet

161.0 71 1.4 5.19 319 217.2 21 1.3 7.24 431 

2,487.0 1,050 7.5 80.2 4.930 

- 31,930.3 3,080 1.3 87.5 63,320 

1,202 

19,032.3 

3,900 

1,012 

417 

14,200 895 

118 

11 

8.3 

46 

16 

38.8 

656 

126 

33.7 

2,380 

37,750 

7,740 

2,010 May 10,995.4 4,210 9.2 355 21,810 June 6,287.4 4,110 3.0 210 12,470 July 3,915.3 733 4.7 126 7,770 August 386.0 103 .7 12.5 766 September 1,608.3 1,100 3.0 53.6 3,190 

Water year 1947-48 51,203.9 14,200 .7 140 101,600 

Peak discharge (base„. 8 300 sec.-ft.).- Feb. 25 (7 p.m.) 31,800 sec.-ft.; May 11 (5 p.m.) 11,700 

sec.-ft.; June 24 (10 a.m.) 12,600 aeo.-ft. 

•Winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice. 

d Doubtful gage-height record; discharge computed on battle of weather records and records for 

Aquilla Creek near Aquilla. Note.- No gage-height record Oct. 25 to Nov. 3, Jan. 19, 25-29, Feb. 8, 12, Mar. 11, Apr. 28; dis- chargw-Zomputed on basis of weather records and records for Aquilla Creek near Aquilla. 
114 BRAZOS RIVER BASIN 

Leon River near Hasse, Tex. 

Location.- Water-stage recorder and concrete control, lat. 31°57', long. 98°28', at 

bridge on U. S. Highway 67, 1,000 feet upstream from Gulf, Colorado & Santa Fe Railway bridge, 0.4 mile upstream from Walnut Creek, and 2.1 miles northeast of Hasse, 

Comanche County. Datum of gage is 1,115.1 feet above mean sea level, datum of 1929. 

Drainage area.- 1,276 square miles. 

Records available.- January 1939 to September 1948. 

Extremes.- Maximum discharge during year, 1,160 second-feet July 6 (gage height, 10.27 

feet); no flow at times. 

1939-48: Maximum discharge, 16,900 second-feet Mar. 30, 1945; maximum gage height, 

17.72 feet Oct. 19, 1942; no flow at times. 

Maximum stage known, about 25.0 feet in May 1908, from information by Texas State 

Highway Department. 

Remarks.- Records good except those for periods of no gage-height record, which are poor. 

No large diversion above station. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. ...... . -......i.:8( (4 ',:0 Fivse.8 00000000000000000000000000 0 

WN N 14 ...

1 

.0

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 

00000 0000

000000 00000 0000 C igiC4gg?!Z r , 

10 1.2 287 9.8 85 11 7.8 366 0 

0 

0 0 0 

000 

207 

52 

13 

6.0 1.2 334 11 57 10 4.3 78 

3.4 1.5 121 12 41 9.3 3.1 29 

2.1 2.6 56 14 34 8.8 2.1 17, 

1.6 2.4 32 14 30 8.3 1.7 12 

1.2 3.7 23 13 27 7.8 1.5 9.3 .8 •165 18 12 26 7.3 1.1 9.8 .5 592 14 12 23 8.3 .9 8.3 .1 460 13 11 22 8.3 .8 7.3 .1 174 12 11 21 9.3 .7 7.8 

0 75 11 12 17 9.3 151 5.2 0 41 11 10 17 8.8 162 4.3 4.9 

2.4 

1.6 

1.2 

.8 

.6 

.4 

.3 

.1 0 

0 

0

0 

0 0000

0 

0 25 9.8 10 17 7.8 38 3.4 .7 16 8.3 11 16 6.8 17 2.8 1.5 14 8.3 10 17 6.8 8.8 2.6 

1.1 236 7.8 9.8 16 6.8 4.9 1.7 1.4 373 6.8 10 14 5.2 3.4 1.5 1.4 137 6.8 11 14 6.0 3.1 1.5 1.4 64 7.8 11 14 4.9 64 1.1 .8 38 9.8 10 13 4.3 21 .7 

.8 25 11 9.3 12 3.7 

5.2

.4 .9 18 10 9.3 15 3.4 2.6 0 .9 14 8.8 9.8 18 3.7 1.9 0 1.1 12 8.3 11 25 6.0 1.4 0 1.1 10 8.3 80 36 6.8 1.4 0 

1.4 8.8 4.9 141 24 42 407 50 1.2 8.3 d5.6 475 18 59 767

356 1.1 7.8 65.6 376 17 40 751 168 1.1 7.8 6.6 156 14 17 499 360 1.1 7.8 7.7 - 12 9.3 111 221 7.8 8.8 - 11 - 165 - -

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet

October 1,735 616 0 56.0 3,440 

November 44.8 10 0 1.49 89 

December 2,549.9 592 1.2 82.3 5,060 

Calendar year 1947 18,583.3 1,340 0 50.9 36,860 -

January 1,083.0 334 4.9 34.9 2,150 

February 1,492.0 475 9.3 51.4 2,960 

March 723 85 11 23.3 1,430 

April 346.0 59 3.4 11.5 686 

May 3,209.7 767 .7 104 6,370 

June 1,724.7 366 0 57.5 3,420 

July 2,115.6 820 0 68.2 4,200 

August 6.3 3.4 0 .20 12 

September 284.3 207 0 9.48 564 

Water year 1947-48 15,314.3 820 0 41.8 30,380 

Peak discharge(base/ 1,800 sec.-ft.).- No peak above base. 

d Doubtful gage-height record; discharge computed on basis of engineer's notes and weather records. 

Note.- No gage-height record Jan. 29-31, Sept. 9-30; discharge computed on basis of engineer's no1717-weather records, floodmarks, and records for station near Belton. 
BRAZOS RIVER BASIN 115 

Leon River near Belton, Tex. 

Location.- Water-stage recorder above spillway of concrete dam, lat. 31°04,15", long. 

yi-Z6l30", 1,400 feet upstream from bridge on U. S. Highway 81 and 2 miles east of 

Belton, Bell County. Datum of gage Is 476.9 feet above mean sea level, datum of 1929. 

Drainage area.- 3,547 square miles. 

Records available.- October 1923 to September 1948. 

Average discharge.- 25 years, 744 second-feet. 

Extremes.- Maximum discharge during year, 10,600 second-feet Feb. 26 (gage height, 8.95 

reet); no flow Aug. 12-27. 

1923-48: Maximum discharge, 70,600 second-feet Apr. 22, 1945 (gage height, 24.41 

feet), from rating curve extended above 45,000 second-feet; no flow at times. 

Maximum stage known, 25 feet in December 1913, from information by local residents. 

Remarks.- Records good except those for periods of no gage-height record, which are fair. 

Several small pumping plants divert water above station. City of Temple diverted an 

average of about 5 second-feet from gage pool for municipal use during 1947 and 1948. 

No information available in regard to amount diverted prior to 1947. 

Discharge, in second-feet, water year October1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

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 jaNNNN NNNNW G.... ...CAW .WW CAWW....

.... ....• ..... ..... ..... ..... 

01 , 0,WWW.0 WM.MM 10NO -. OWNN . MM AGAN .(1 

448 23 26 36 417 112 107 870 323 4.0 6.5 344 23 28 39 432 80 88 1,220 395 3.4 2.6 193 26 26 42 494 76 80 604 432 2.9 2.3 112 72 26 45 463 72 92 316 510 2.5 1.8 80 42 28 45 352 72 88 212 432 2.3 1.6 

60 42 239 48 224 68 80 316 237 2.0 1.6 48 52 289 48 136 64 68 243 230 1.7 1.4 36 281 164 52 121 93 60 164 212 1.4 1.1 30 178 102 45 121 157 52 136 854 1.1 307 28 72 68 45 116 68 48 107 811 .7 388 

23 470 48 48 121 64 f718 76 1,480 .3 112 21 395 45 48 112 60 f1,770 56 746 0 901 19 502 36 48 102 342 11,560 45 440 0 1,040 19 359 33 45 97 270 527 u42 402 0 372 15 218 30 45 102 136 388 a36 219 0 205 

15 199 33 45 102 147 410 a30 141 0 158 19 112 33 45 102 102 a410 26 193 0 116 26 84 33 45 121 76 a303 26 158 0 86 26 68 36 42 126 64 368 19 102 0 72 23 48 36 42 126 56 131 19 76 0 56 

23 48 33 42 116 56 107 13 56 0 42 26 265 30 42 116 52 88 10 42 0 33 30 170 30 39 182 52 80 9.0 33 0 28 36 102 28 36 218 ' 48 68 7.7 30 0 23 36 72 30 617 141 349 64 7.7 26 0 19 

36 48 33 3,630 224 323 88 12 23 0 17 28 42 30 f456 230 310 1,150 12 19 292 13 28 36 28 2,590 158 230 1,200 214 15 126 12 23 30 30 1,780 131 141 2,460 376 10 80 9.0 23 28 30 126 107 1,530 224 9.0 45 5.6 - 28 30 - 131 870 - 5.6 21 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 346.6 165 2.6 11.2 687 November 1,874 448 15 62.5 3,720 December 4,135 502 23 133 8,200 

Calendar year 1947 157,591.2 8,180 2.6 432 312,600 -

January 1,691 289 26 54.5 3,350 February 10,130 3,630 36 349 20,090 March % 5,760 494 97 186 11,420 April 3,847 349 48 128 7,630 May 15,053 2,460 48 486 29,860 June 5,448.4 1,220 7.7 182 10,810 July 8,660.6 1,480 5.6 279 17,180 August 586.3 292 0 18.9 1,160 September 4,035.5 1,040 1.1 135 8,000 

Water year 1947-48 61,567.4 3,630 0 168 122,100 ' Peak discharge fbase, 11,000 sec.-ft.).- No peak above base. 

a No gage-heigh record; discharge computed on basis of recorded range in stage and weather rec- ords. f Computed on basis of partly estimated gage-height record. 
		

----- 

- - - 

116 BRAZOS RIVER BASIN 

Little River at Cameron, Tex. 

Location.- Water-stage recorder, lat. 30°50', long. 96°57', at site of old McCowan bridge, 

i,uiiu feet upstream from bridge on U. S. Highway 77 and 2 miles southeast of Cameron, 

Milam County. Datum of gage is 281.9 feet above mean sea level, datum of 1929. 

Drainage area.- 7,034 square miles. 

Records available.- November 1916 to September 1948. 

Average discharge.- 31 years (1917-48), 2,001 second-feet. 

Extremes.- Maximum discharge during year, 8,670 second-feet May 13 (gage height, 23.06 

feet); minimum, 16 second-feet Aug. 19 (gage height, 2.50 feet). 

1916-48: Maximum discharge, 647,000 second-feet Sept. 10, 1921 (gage height, 53.2 

feet, present datum, from floodmark), by slope-area method; minimum, 2.6 second-feet 

Sept. 3, 5, 7, 1918. Flood of 1852 reached about same stage as that of Sept. 10, 1921. Flood of December 

1913 reached a stage of 49.0 feet. Stages based on information by local residents. 

Remarks.- Records good. Many small diversions for irrigation and municipal supply affect 

very low flows. Slight regulation caused by pumping above station. 

Revisions (water years).- W 718: 1918-22. 

Rating table, water year 1947-48 (gage height, in feet, and discharge, in second-feet) (Shifting-control method used Sept. 14-30) 

2.5 16 3.6 106 5.0 480 12.0 3,190 

2.6 19 3.8 136 6.0 840 14.0 4,080 2.8 28 4.0 174 7.0 1,210 16.0 5,040 

3.0 41 4.2 217 8.0 1,580 18.0 6,040 

3.2 58 4.4 272 9.0 1,960 20.0 7,060 3.4 80 4.7 372 10.0 2,340 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

fs) :":-. ' .0 w ( iF,:iM

Al-e=".:=2 ;-2g2,'Ai ', aMN

706 50 143 661 42 106 422 38 B2 1,240 34 66 1,960 a32 58 

1 84 67 106 154 147 2,840 199 314 

2 84 188 102 149 145 1,210 188 238 

3 81 484 100 149 149 804 111.6 230 

4 81 390 192 141 158 768 178 199 

5 82 260 149 141 170 786 172 180

6 81 196 178 140 190 660 170 188 1,510 a30 a47

7 82 164 206 140 199 552 168 831 923 a29 40

8 84 138 166 267 512 466 164 285 516 a28 38

9 82 123 149 397 394 397 158 201 397 a26 37

10 81 114 285 301 294 362 632 160 600 a24 39

11 81 107 302 243 225 335 419 632 988 a24 261

12 82 103 254 210 196 314 208 5,260 274

13 81 100 534 188 180 294 215 6,920 2,080 a22 1,720 a21 196 

14 79 100 570 174 176 285 3,850 2,870 822 a20 1,140

15 78 102 624 164 170 272 2,930 1,380 624 a19 678

16 78 103 505 156 164 288 1,060 786 440 a18 352

17 76 109 397 152 160 263 588 606 272 818 217

18 74 112 324 150 156 249 444 570 206 all 160

19 73 126 269 158 154 238 324 433 206 16 123

20 70 130 230 170 150 230 252 499 182 18 103

21 68 125 203 168 158 230 215 527 150 18 88

22 66 126 188 170 206 227 196 294 125 18 78

23 65 125 176 162 160 220 174 233 109 17 69

24 65 123 330 158 152 227 158 196 95 17 61

25 64 120 288 152 152 243 164 180 85 18 54

26 64 119 233 150 156 365 1,100 832 75 20 48

27 64 131 206 152 5,140 321 1,280 2,060 67 139 43 28 64 122 186 149 3,210 307 914 3,860 61 1,020 38 29 70 117 172 152 2,160 301 660 2,640 56 924 33

30 74 112 164 150 246 448 2,500 52 365 32

31 70 160 149 - 215 - 2,190 50 210

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 2,328 84 64 75.1 4,620 November 4,436 484 67 148 8,800 December 7,948 624 100 256 15,760 

Calendar year 1947 503,401 22,000 64 1,379 998,400 

January 5,456 397 140 176 10,820 February 15,583 5,140 145 537 30,910 March 14,505 2,840 215 468 28,770 April 17,814 3,850 158 594 35,330 May 38,294 6,920 160 1,235 75,960 June 11,250 2,020 54 375 22,310 July 17,400 2,080 50 561 34,510 August 3,292 1,020 16 106 6,530 September 4,704 1,140 32 157 9,330 

Water year 1947-48 143,010 3,920 16 391 283,600 

Peak discharge tbase, 11,000 sec.-ft.).- No peak above base. 

a No gage-heigh record; discharge computed on basis of weather records and records for nearby 

stations. 
BRAZOS RIVER BASIN 117 

Lampasas River at Youngsport, Tex. 

Location.- Water-stage recorder, lat. 30°57f, long. 97°43', 300 feet upstream from bridge 

on county highway and half a mile southeast of Youngsport, Bell County. 

Drainage area.- 1,242 square miles. 

Records available.- February 1924 to September 1948. 

Average discharge.- 24 years, 320 second-feet. 

Extremes.- Maximum discharge during year, 12,600 second-feet Feb. 25 (gage height, 12.01 

feet, from floodmark); minimum, 2.8 second-feet Aug. 16-18. 

1924-48: Maximum discharge, 53,200 second-feet Sept. 28, 1936 (gage height, 33.5 

feet, from floodmarks), from rating curve extended above 40,000 second-feet; no flow 

July 17 to Aug. 18, 1925, July 22, 23, Aug. 9 to Sept. 8, 1934. 

Flood of September 1873 reached a stage of 44.2 feet and that of Dec. 2, 1913, 

reached a stage of 33.6 feet, present datum, from information by local residents. 

Remarks.- Records good. Small diversions above station for municipal use. 

Revisions (water years).- W 788: 1926, 1928, 1931. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

2'.3'8`8re, 'cl'i rc4 8'8'8'8

8

8 ''.:C' t .''. f 3 33,`&1?? ?.(T. L'3 ',.-'VO" '.s.:'.1.'s.:8."..‘'.

1 16 15 23 21 106 21 40 40 8.4 4.6 21 2 16 13 25 23 89 21 35 32 51 5.0 15 3 16 14 28 25 64 21 32 26 268 5.5 13 4 16 14 42 25 53 21 30 23 466 6.1 13 5 16 14 28 25 45 21 26 21 166 5.0 12 

6 15 15 25 25 42 21 25 19 76 5.0 11 7 15 14 25 25 • 37 21 21 17 48 4.6 10 8 15 15 28 9 16 17 28 10 16 20 26 

11 15 19 25 12 14 19 21 13 14 19 21 14 14 23 23 15 14 25 35 

16 13 25 35 17 13 26 35 18 13 28 28 19 13 26 25 20 13 26 23 

21 13 25 23 22 13 26 21 23 13 28 21 24 14 32 20 25 13 26 20 

26 14 23 20 27 15 23 20 28 16 23 20 29 24 23 20 30 20 23 20 31 17 21 

25 35 21 21 15 32 4.6 9.7 23 35 23 21 14 42 4.6 16 23 32 21 21 15 32 4.6 19 

23 30 20 734 14 1,040 4.6 21 23 30 19 1,040 14 179 4.1 15 23 30 885 111 13 76 4.1 12 21 28 471 146 13 48 3.7 11 21 26 130 106 12 28 3.2 10 

21 26 67 a83 10 21 3.2 10 20 26 45 a56 9.7 17 3.2 10 20 26 32 alO 9.0 15 3.2 10 20 26 26 a30 7.7 13 3.2 11 20 25 21 26 6.6 12 3.7 10 

20 25 21 25 6.6 10 4.1 9.0 19 25 21 21 6.1 9.7 3.7 8.4 20 94 20 20 5.5 8.4 3.7 7.7 21 106 19 20 6.1 7.7 3.7 7.7 62,700 64 262 19 5.0 7.2 4.6 7.2 

62,610 48 347 21 9.0 6.6 929 6.6 254 37 163 1,470 11 6.1 531 6.6 189 30 86 263 11 6.1 f118 6.1 134 28 59 120 11 5.5 56 6.1 25 45 76 9.0 5.0 32 7.2 - 21 53 5.0 28 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet

October 465 24 13 15.0 922 November 639 32 13 21.3 1,270 December 775 42 20 25.0 1,540 - Calendar year 1947 63,635 3,620 13 174 126,200 

January 657 26 19 21.2 1,300 Pebruary 6,419 2,700 19 221 12,730 March 1,314 106 21 42.4 2,610 April 2,971 885 19 99.0 5,890 May 4,752 1,470 19 153 9,430 June 411.3 40 5.0 13.7 816 July 2,715.7 1,040 5.0 87.6 5,390 August 1,799.6 929 3.2 58.1 3,570 September 332.3 21 6.1 11.1 659 

Water year 1947-48 23,250.9 2,700 3.2 63.5 46,130 

Peak discharge base, 8,300 sec.-ft.).- Feb. 25 (12 p.m.) 12,600 sec.-ft. 

a No gage-heightrecord; discharge computed on basis of estimated gage-height record. f Computed on basis of partly estimated gage-height record. 
		

118 BRAZOS RIVER BASIN 

San Gabriel River at Georgetown, Tex. 

Location.- Water-stage recorder and concrete control, lat. 30°39'10", long. 97°39'20", 

NU feet downstream from Missouri-Kansas-Texas Railroad bridge, It miles downstream 

from confluence of North and South Forks, and 1! miles northeast of Georgetown, 

Williamson County. Datum of gage is 643.71 feet above mean sea level, datum of 1929. 

Drainage area.- 415 square miles. 

Records available.- July 1934 to September 1948. February 1924 to August 1925 at site 

1 mile upstream; records equivalent except those for extremely low flow. 

Average discharge.- 14 years, 177 second-feet. 

Extremes.- Maximum discharge during year, 14,000 second-feet May 11 (gage height, 11.07 

feet); minimum, 0.8 second-foot July 30, 31 (gage height, 0.78 foot). 

1924-25, 1934-48: Maximum discharge, 37,500 second-feet June 6, 1944 (gage height, 19.49 feet), from rating curve extended above 24,000 second-feet; minimum, 0.2 secondfoot July 31, Aug. 1, 29, 30, 1942. 

Maximum stage known, 39.36 feet in September 1921, present site and datum (discharge, 

160,000 second-feet by slope-area method), from information by Missouri-Kansas-Texas 

Railroad Co. 

Remarks.- Records good. Several small diversions have some effect on low flow which is 

alsoregulated at times by gates in recreation dam 3,000 feet upstream. 

Discharge, in second-feet, water year October 1947 to September 1946 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

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 

-,. -3:,:•,.‘! ci941c-a? 22222 2222::22222 22220' "°'""'"°' 

8.2 10 11 11 17 10 21 15 11 1.7 7.2 8.8 10 11 13 16 10 20 20 13 2.4 4.5 8.2 11 11 16 15 10 20 22 40 2.7 1.1 8.8 18 10 16 15 1401. 21 20 38 3.1 1.7 8.2 15 11 16 15 10 20 18 17 3.4 2.1 

8.2 13 11 20 15 10 28 17 14 4.1 1.9 9.4 12 11 21 14 10 20 15 12 3.7 3.4 8.2 12 11 a20 14 9.4 17 14 10 3.7 4.1 8.2 11 11 019 15 93 17 13 9.4 . 3.7 6.7 9.4 11 11 18 15 17 16 13 71 3.7 8.2 

9.4 11 11 17 14 13 3,550 13 122 3.7 6.2 9.4 10 11 17 14 12 411 12 41 3.7 5.7 9.4 10 11 15 13 3,990 101 11 18 3.4 5.7 13 11 11 14 13 270 66 10 14 3.4 5.7 12 20 10 14 13 76 33 9.4 10 3.4 5.3 

11 16 12 13 14 49 39 8.8 8.2 3.7 5.3 16 14 11 13 13 37 35 8.2 7.2 3.7 5.7 20 13 11 13 13 31 32 7.7 6.7 3.7 6.2 13 12 15 13 13 26 54 7.2 6.2 3.4 6.7 11 12 15 13 13 18 29 7.2 5.7 3.7 5.3 

11 11 13 13 13 11 27 6.7 5.7 3.4 5.3 13 11 12 13 13 20 25 6.7 5.7 3.7 5.3 14 11 11 13 13 20 22 6.2 5.3 3.7 4.9 13 11 11 14 12 18 22 6.7 5.3 3.7 4.9 12 11 11 15 11 657 22 23 4.9 4.1 4.9 

11 11 13 17 13 169 402 12 4.9 513 4.9 11 11 13 20 12 56 1,330 10 4.9 182 4.5 10 11 11 17 11 37 97 15 4.5 38 4.9 10 11 11 17 11 17 53 32 4.5 19 4.5 9.4 11 11 11 18 40 13 2.8 11 4.5 11 11 - 10 34 - .9 8.2 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 298.4 11 8.2 9.63 592 November 324.2 20 8.2 10.8 643 December 373 20 10 12.0 740 

Calendar year 1947 43,039.1 1,460 8.1 118 85,370 - -- - - -- - January 

February 355 

451 

15 

21 

10 

11 

11.5 

15.6 

704 

895 March 414 17 10 13.4 821 April 5,734.4 3,990 9.4 191 11,370 May 6,624 3,550 16 214 13,140 June 392.8 32 6.2 13.1 779 July 523.8 122 .9 16.9 1,040 August 857.8 513 1.7 27.7 1,700 September 147.3 8.2 1.1 4.91 292 

Water year 1947-48 16,495.7 3,990 .9 45.1 32,720 

Peak discharge (base, 3,600 sec.-ft.).- Apr. 13 (8:30 a.m.) 11,400 sec.-ft.; May 11 (4 30 p.m.) 14,000 sec.-ft.; May 26 (11 p.m.) 5,1150 sec.-ft. 

a No gage-height record; discharge interpolated. 
BRAZOS RIVER BASIN 119 

Yegua Creek near Somerville, Tex. 

Location.- Water-stage recorder, lat. 30°19', long 96°30', at bridge on State Highway 36, 7b0 feet downstream. from Gulf, Colorado & Santa Fe Railway bridge, 2 miles south of 

Somerville, Burltson County, and 5 miles upstream from Davidson Creek. Datum of gage 

is 199.29 feet above mean sea level, datum of 192'9. 

Drainage area.- 990 square miles. 

Records available.- May 1924 to September 1948. 

Average discharge.- 24 years, 318 second-feet. 

Extremes.- Maximum discharge during year, 898 second-feet Feb. 9 (gage height, 6.44 feet); .1=1".3w at times. 1924-48: Maximum discharge, 56,800 second-feet July 1, 1940 (gage height, 19.27 

feet); no flow at times. 

Maximum stage known, about 22.0 feet Dec. 5, 1913, present site and datum, from 

information by Gulf, Colorado & Santa Fe Railway Co. 

Remarks.- Records good. No diversion above station. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

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 

'I'll INN cst1-11'1 , 00000 00000 00000 00 

inin9 -!-ll-1 1-:1 0 

000000000000 [

0.1 2.5 6.9 45 7.3 3.9 51 106 

.1 2.6 7.3 36 6.4 2.5 26 113 

.1 2.3 13 24 5.9 1.8 15 27 

1.4 2.0 22 18 5.4 1.2 9.8 11 24 2.2 26 23 5.2 .7 6.6 45 

60 2.1 26 24 5.4 13 4.8 17

19 2.0 26 18 5.1 13 3.7 4.6

9.1 1.8 140 13 . 4.8 5.1 2.5 17

6.9 1.7 799 30 4.5 2.6 1.4 21

5.7 1.5 659 47 4.4 1.5 .9 9.4

4.2 1.4 188 24 4.4 71 .5 14

3.3 1.4 80 17 4.1 291 .3 4.4

8.1 1.4 58 14 4.2 125 .2 2.0 

12 1.6 41 11 5.2 81 .2 7.7

215 3.1 28 30 5.4 36 .1 3.8

294 3.0 22 9.8 5.2 26 .1 1.8

93 8.1 17 8.7 4.6 17 0 .6 

34 13 15 7.9 3.7 11 0 .3

15 10 12 8.7 3.3 8.7 0 .2

9.4 10 11 14 2.8 7.7 0 .1

6.7 8.1 140 12 2.4 7.3 0 .1

5.4 6.7 490 12 2.0 5.2 0 0 4.4 5.1 256 13 1.4 3.7 0 0 

3.6 3.9 79 13 1.0 2.5 0 0

2.8 3.3 43 13 2.9 1.6 0 0

• 

2.4 4.6 33 17 7.7 39 0 0

2.1 15 46 18 9.4 314 0 0

1.9 16 102 14 15 595 0 0 1.9 13 79 11 10 668 0 0

1.9 9.8 - 9.4 5.9 332 5.0 0

2.1 8.3 8.3 113 0

Month Secondfoot-day. Maximum Minimum Mean Runoff in 

acre-feet 

October 3.7 0.3 0 0.12 7.3 

November 

December 1.6 849.6 .2 294 0 

.1 .05 27.4 3.2 1,690 -

Calendar year 1947 120,400.1 20,000 0 330 238,800 - - ..- January 

February 

March 

167.5 3,465.2 543.8 

16 

799 

47 

1.4 

6.9 

7.9 

5.40 119 

17.5 

332 6,870 

1,080 

April 

May 

June 

155.0 2,801.0 128.1 

15 

668 

51 

1.0 

.7 

0 

5.17 

90.4 

4.27 

307 5,560 254 

July 

August 

September 

406.0 o 

0 

113 0 

0 

0 

0 

0 

13.1 

0 

0 

805 o 

0 

Water year 1947-48 8,521.5 799 0 23.3 16,910 

Peak discharge (base, 1,400 sec.-ft.).- No peak above base. 

905771 0- 50- 9 
120 BRAZOS RIVER BASIN 

Navasota River near Easterly, Tex. 

Location.- Water-stage recorder, lat. 31°10'10", long. 96°171 55", at bridge on U. S. 

Highway 79, 1 mile upstream from Missouri Pacific Railroad bridge and 6 miles northeast of Easterly, Robertson County. Datum of gage is 276.42 feet above mean sea 

level, datum of 1929. 

Drainage area.- 949 square miles. 

Records available.- March 1924 to September 1948. 

Average discharge.- 24 years, 462 second-feet. 

Extremes.- Maximum discharge during year, 4,010 second-feet May 14 (gage height, 14.84 

reetl; minimum, 1.0 second-foot Sept. 7-9. 

1924-48: Maximum discharge, 60,300 second-feet May 2, 1944 (gage height, 22.13 

feet); no flow at times. 

Maximum stage known, about 24.0 feet in 1900, from information by local residents, 

(discharge, about 71,000 second-feet). 

Remarks.- Records fair. No diversion above station. 

Revisions (water years).- W 898: 1924, 1926, 1927, 1928(M), 1929, 1930, 1931(M). 

Discharge, in second-feet, water year October1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 4.4 3.0 5.4 16 195 304 30 106 39 257 1.8 1.6 

2 4.1 3.1 5.1 15 345 225 26 72 31 118 1.8 1.8 

3 3.7 2.9 5.2 83 470 693 24 53 24 47 1.7 1.4 

4 3.8 3.3 30 84 388 1,090 23 40 20 26 1.5 1.3 

5 3.8 3.0 39 52 364 1,380 22 36 16 18 1.5 1.2 

6 3.8 3.6 56 33 546 772 21 119 14 60 :.4 1.1 

7 3.6 4.4 116 •24 828 284 20 429 12 49 1.4 1.0 

8 3.6 4.4 89 19 982 207 20 177 10 135 1.4 1.0 

9 3.6 4.1 115 18 1,210 148 19 100 9.2 166 1.4 1.0 

10 3.6 4.7 274 16 1,560 114 42 60 8.3 102 1.4 1.6 

11 3.4 4.0 180 15 1,620 122 86 357 7.1 77 1.4 4.1 

12 3.1 4.1 92 14 1,170 134 142 1,180 6.4 66 1.4 3.3 

13 3.0 4.4 56 13 580 106 356 1,800 6.0 70 1.4 2.6 

14 2.9 4.8 38 13 620 82 720 3,100 5.4 34 1.3 2.3 

15 2.8 4.8 31 12 488 65 828 3,360 5.1 21 1.3 2.0 

16 2.8 5.1 29 12 333 60 784 2,300 4.5 14 1.3 1.8 

17 2.8 5.4 32 14 222 56 591 1,050 4.4 11 1.2 1.8 

18 2.8 6.1 133 19 152 53 223 194 4.5 9.5 1.2 1.8 

19 4.1 5.8 114 192 114 50 134 130 3.7 6.8 1.3 1.8 

20 3.6 6.0 56 232 96 48 93 134 3.1 5.4 1.3 1.7 

21 2.8 5.8 34 180 90 43 67 114 2.9 4.4 1.3 1.7 

22 2.6 12 24 202 175 41 52 91 2.7 3.8 1.3 1.6 

23 2.6 9.7 20 326 380 39 43 70 2.6 3.3 1.3 1.6 

24 2.6 9.9 17 206 235 43 37 50 2.6 3.0 1.3 1.5 

25 2.8 8.7 15 94 139 86 122 39 2.5 2.8 1.4 1.5 

26 2.9 6.8 14 63 106 70 231 87 2.5 2.6 1.5 2.0 

27 2.9 5.7 13 92 153 52 396 58 2.9 2.4 1.8 1.6 

28 2.9 .5.0 12 248 348 42 580 43 3.8 2.2 1.8 1.4 

29 2.9 4.7 12 580 436 37 501 32 13 2.0 1.7 1.3 

30 3.0 5.1 12 f374 37 178 30 142 1.8 1.7 1.2 

31 3.0 - 13 230 - 35 - 42 - 1.8 1.6 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 100.3 4.4 2.6 3.24 199 

November 160.4 12 2.9 5.35 318 

December 1,681.7 274 5.1 54.2 3,340 

- _ 

Calendar year 1947 171,353.8 8,550 2.6 469 339,900 

January 3,491 580 12 113 6,920 

February 14,345 1,620 90 495 28,450 

March 6,518 1,380 35 210 12,930 

April 6,411 828 19 214 12,720 

May 15,453 3,360 30 498 30,650 

June 411.2 142 2.5 13.7 816 

July 1,321.8 257 1.8 42.6 2,620 

August 45.1 1.8 1.2 1.45 89 

September 51.6 4.1 1.0 1.72 102 

Water year1947-48 49,990.1 3,360 1.0 137 99,150 

Peak discharge (base, 3,100 sec.-ft.).- May 14 (10:30 p.m.) 4,010 sec.-ft. 

f Computed on basis of partly estimated gage-height record. 
	 	

BRAZOS RIVER BASIN 121 

American Canal Co.'s canal near Fulshear, Tex. 

Location.- Water-stage recorder, lat. 29°39., long. 95°54., 1 mile downstream from point 

or diversion and 3 miles south of Fulshear, Fort Bend County. 

Records available.- October 1931 to September 1948. 

Average discharge.- 17 years, 73.0 second-feet. 

Extremes..- Maximum daily discharge during year, 349 second-feet May 15; no flow at times. 

19.31-48: Maximum daily discharge, 363 second-feet May 17, 1942; no flow for several 

months each year. 

Remarks.- Records good. Station above all diversions from canal. Flow controlled by 

pumping plant located on left bank of Brazos River 18 miles above Richmond. Figures of 

discharge represent water actually pumped from river for irrigation in vicinity of Sugarland. 

Monthly discharge, in second-feet, water year October 1947 to September 1948 

Runoff in Month Maximum Minimum Mean acre-feet 

October 179 0 81.4 5,010 November 0 0 0 0 December 0 0 0 0 

Calendar year 1947 349 0 114 82,310 

January 0 0 0 0 February 

March 0 

0 0 

0 0 0 0 

0 April 

May 

June 

325 

349 

325 

0 

269 

229 

193 

293 

265 

11,500 

17,990 

15,780 July 

August 

September 

309 

253 

261 

237 

237 

92 

271 

251 

207 

16,640 

15,410 

12,300 

Water year 1947-48. 349 0 130 94,630 

Richmond Irrigation Co.'s canal near Richmond, Tex. 

Location.- Water-stage recorder, lat. 29°34, , long. 95°47,, 600 feet downstream from cross ng of U. S. Highway 59, miles downstream from point of diversion, and miles west of Richmond, Fort Bend County. 

Records available.- October 1931 to September 1948. 

Average discharge.- 17 years, 36.5 second-feet. 

Extremes.- Maximum daily discharge during year, 230 second-feet May 22; no flow at times. 

1931-48: Maximum daily discharge, 234 second-feet June 5, 6, 1938; no flow for 

several months each year. 

Remarks.- Records good. Canal diverts water by pumping from right bank of Brazos River 

b miles upstream from Richmond for irrigation. Figures of discharge represent water 

pumped from river except for a diversion upstream from station which is used to irri- gate 80 acres. 

Monthly discharge, in second-feet, water year October 1947 to September 1948 

Runoff in Month Maximum Minimum Mean acre-feet 

HVe, 0000010,000

October 92 14.1 868 0 0 0 0 

57.3 41,460 

0 0 0 0 

November 0 December 0 _ 

Calendar year 1947... 200 _ — - January 0 February 0 March 2.2 April 154 May 230 

.07 4.4 85.7 5,100 121 7,430 June 198 156 9,290 July 192 149 9,150 August 192 151 9,260 September 120 68.2 4,060 

Water year 1947-48 230 0 62.2 45,160 
BRAZOS RIVER BASIN 122 

Dry Creek near Richmond, Tex. 

Location.- Staff gage, lat. 29°30.19", long. 95°42,39", at county road bridge, 3.8 miles 

'Il isTi L 'eam from mouth and 6 miles southeast of Richmond, Fort Bend County. Datum of gage -

is 65.96 feet above mean sea level, datum of 1929, Houston supplementary adjustment of 

1943 

Drainage area.- 10.3 square miles. 

Records available.- May 1947 to September 1948. 

Extremes.- 1947: Maximum discharge observed during period May to September, 382 secondTeet May 25 (gage height, 9.00 feet); no flow at times. 

1947-48: Maximum dischArge during water year, 173 second-feet Dec. 13 (gage height, 

7.23 feet, from graph based on gage readings); no flow at times. 

Flood of August 1945, highest of recent years, reached a stage of 13.6 feet, gage 

datum, at a point 0.7 mile to left of gage, from information by observer. 

Remarks.- Records fair. Gage read once daily, oftener during high stages. Low flow 

affected by drainage from irrigated lands. No diversions above station. 

Discharge, in second-feet, 1947-48 

1947 

Day Oot. Nov. Deo. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 - 0.4 0.4 1.5 0.8 2 .2 .7 1.6 .6 3 0 .6 1.5 .3 4 0 .5 1.4 .2 5 - .3 .7 1.4 .1 

_ 7 

61 .8 1.2 .1 .4 .8 1.2 0 

8 .8 1.5 1.0 0 9 1.1 2.5 .9 0 10 1.3 1.8 1.1 .1 

11 1.0 1.0 2.3 .1 12 .6 1.1 2.9 .1 13 - .6 8.0 3.0 .1 14 0.8 a.4 8.3 2.9 0 15 1.0 .4 4.5 2.4 0 

16 .7 .3 1.8 1.6 .1 17 .6 ... 1.2 1.2 .2 18 33 .1 1.0 1.1 .2 19 48 .5 1.3 1.0 20 63 .8 1.2 1.2 

21 102 .8 1.2 2.9 22 11 .6 1.0 3.4 23 62 .4 1.0 2.6 24 151 .4 .6 2.4 25 303 .4 .6 23 

26 46 .4 1.2 20 27 11 .4 1.6 10 1 28 3.7 .4 1.7 04.3 .4 29 1.7 .4 1.5 2.4 .5 30 1.2 .4 1.5 1.5 .4 31 .8 1.2 1.0 

Peak discharge (base, 200 sec.-ft.).- May 21 (1 a.m.) 260 sec.-ft., May 25 (8 a.m.) 382 sec.-ft. 

a No gage-height record; discharge computed on basis of estimated gage heights. 
		

- - - - 

- - - - - - - 

- - 

1 

2 

3 

4 

5 

BRAZOS RIVER BASIN 123 

Day 

Discharge, in second-feet, of Dry Creek near Richmond, Tex., 1947-48--Continued 

1947-48 

00t. Nov. Deo. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 31 30

000000 0 000000 00000 0000

, ,,NN 

N, ,NN 

N + Oro w 0 000 00000 00000 1 

..4. 6O,M0. -.6iA 6, 

r;,,,, ...., 

0.20 6.6 1.6 0 0 0.1 1.9 0.9 1.6 

.1 0 2.7 1.4 0 0 0 1.7 .8 2.3 .2 11 1.2 0 0 0 1.0 .8 2.3 .3 0 19 1.1 0 0 0 1.1 .8 2.3

1.0 0 14 1.6 0 0 0 1.0 .9 2.3 

2.4 0 6.0 3.4 0 0 0 .6 .9 2.2 

.80 2.5 2.1 0 0 0 .5 .9 2.0 .40 1.5 2.1 0 0 0 .1 .6 2.1 .4 0 2.1 57 0 0 0 0 .8 2.8 .40 1.5 28 0 0 .7 0 1.1 4.7 

.60 1.0 9.0 0 7.0 1.5 .2 1.6 4.5 4.50 19 3.2 0 2.7 1.0 .5 2.3 3.1 

84 0 11 1.3 0 .7 .4 .6 2.4 1.8 32 0 4.1 1.1 0 .3 .4 .8 2.2 1.2 82 0 2.0 .7 0 0 .2 .4 1.4 .8 

25 .1 1.2 .8 0 0 0 .7 1.2 .6 9.0 3.7 .8 .6 0 0 0 .8 1.1 .8 3.9 1.1 .6 .4 0 .1 0 1.1 1.2 1.8 1.8 38 .6 .3 0 8.9 .2 1.0 1.2 3.0 1.2 41 .4 .3 0 3.6 .2 1.2 1.8 2.3 

.8 11 4.8 .2 0 .8 .1 1.6 2.1 2.2 .4 4.2 16 .2 0 .4 0 3.4 2.0 1.8 .3 2.5 16 .1 0 0 0 3.4 1.9 1.0 

.3 1.0 34 0 0 0 0 1.6 2.2 .6 

.1 .8 22 0 0 .1 0 1.1 2.4 .5 

.1 1.5 12 0 0 49 .4 1.0 2.3 .3 0 28 6.9 0 .2 41 .5 1.1 1.5 .2 

0 14 S.9 0 .1 7.1 .5 1.4 1.6 .5 

00

0 13 2.1 0 0 .9 .8 1.1 1.2 .8 

16 0 0 .6 1.1 1.1 1.1 1.5 15 - 0 - .6 1.0 1.2 -

Peak discharge (base, 200 sec.:ft.).- No peak above base. 

Monthly discharge, In second-feet, 1947-48 

Second- Runoff in Month Maximum Minimum Mean acre-feet 

Ottober 

November 

December 

Calendar year 

January 

February 

March 

April 

May 14-31, 1947.. June 

July 

August 

September 

The period 

foot-days 

-

- - -

- -

840.5 303 0.6 46.7 1,670 

14.2 1.3 0 .47 28 

53.1 8.3 .4 1.71 105 

105.9 23 .9 3.42 210 

5.4 .8 0 .18 11 

- - - - 2,020 I 00000. 0 000 N m . 

.2 .05 3.0 1.51 90. 8.14 500 

October 1947 1.5

November 45.3 20 

December 252.2 84

Calendar year - _ - - -

6.16 379 7.77 447 3.80 233 

January 1948 190.9 41 

February 225.3 34

March 117.7 57 April .3 .2 .01

3.99 246 .27 16 1.05 65 1.43 

1.80 107 

May 123.8 49 

June 8.1 1.5 

July 32.6 3.4 

August 44.4 2.4

September 53.9 4.7

1,096.0 84 0 2.99 2,170 Water year 1947-48 

.6 

88 
		

124 BRAZOS RIVER BASIN 

Big Creek near Needville, Tex. 

Location.- Wire-weight gage, lat. 29°28,35", long. 95°481 45",at bridge on State Highway 

36, 1.5 miles downstream from Coon Creek, 5} miles north of Needville, Fort Bend 

County, and 104 miles upstream from Fairchild Creek. Datum of gage is 69.4 feet 

• above mean sea level, datum of 1929, Houston supplementary adjustment of 1943. 

Drainage area.- 37.6 square miles. 

Records available.- May 1947 to September 1948. 

Extremes.- Maximum discharge during year, 582 second-feet Dec. 13 (gage height, 10.08 

feet, from graph based on gage readings); no flow at times. 

1947-48: Maximum discharge, 1,120 second-feet May 25, 1947 (gage height, 12.70 

feet, from floodmark); no flow at times. 

Flood of August 1945 reached a stage of 14.4 feet, from information by local resident. 

Remarks.- Records fair. Gage read once or twice daily. No diversion above station. 

Diacharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

19 91N. 0000000000 r

elVM N , 

0.9 0.8 23 7.7 .6 .6 13 6.2 2.1 .4 60 5.1 1.8 .4 105 4.0 3.1 .3 73 5.7 

14 .2 32 28 19 0 16 16 16 0 12 18 8.6 0 17 324 5.1 0 11 156 

N W 

4. .00000000000000000000000 

N ON W 

I 'cs! 

0000. 

.00000000 00000 00000 000000 

1("'". 

0.

0X 0000000 0000

000000 0000

000000. 

NNO02, .4. 0 014,0,,N 0000

000000 

on 

11 6.1 0 12 54 12 

13 

14 

41 0 110 23 445 0 62 13 362 0 26 8.5 15 386 0 12 5.8 

16 200 0 7.5 4.0 17 89 0 5.6 2.5 18 46 0 4.0 1.9 19 

20 

21 

22 

26 62 3.1 1.6 16 112 2.8 1.4 

10 35 15 1.0 8.0 17 67 .9 23 5.9 10 34 .9 24 5.1 7.3 81 .6 25 4.0 6.5 46 .6 

26 

27 

28 

29 

30 

31 

3.0 6.0 27 .5 2.5 107 18 .3 2.0 80 13 .2 1.5 41 9.8 0 1.1 32 - 0 .9 38 - 0 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 0 0 0 0 0 November .. 513.9 200 0 17.1 1,020 December 1,732.3 445 .6 55.9 3,440 

Calendar year -- - . -

January 556.5 112 0 18.0 1,100 February 917.8 110 2.8 31.6 1,820 March 691.4 324 0 22.3 1,370 April 40.9 24 0 1.36 ' 81 May 613.6 355 0 19.8 1,220 June .7 .4 0 .02 1.4 July 2.5 1.2 0 .08 5.0 August 0 0 0 0 0 September 0 0 0 0 0 

Water year 1947-48 5,069.6 445 0 13.9 10,060 

Peak discharge ibase, 500 sec.-ft.).- Dec. 13 (1 p.m.) 582 sec.-ft.; May 19 (9 a.m.) 528 sec.-ft. 

a No gage-heigh record; discharge estimated. 
BRAZOS RIVER BASIN 125 

Big Creek near Guy, Tex. 

j,ocation.- Staff gage, lat. 29°24.45", long. 95°42'35", at county road bridge 0.2 mile up- - from Gulf Colorado & Santa Fe Railway bridge, 0.3 mile downstream from Deer 

Creek, 1.0 mile dowpstream from Fairchild Creek, 6 miles northeast of Guy, Fort Bend 

County, and 19 miles upstream from mouth. Datum of gage is 46.57 feet above mean sea 

level, datum of 1929, Houston supplementary adjuatment of 1943. 

Drainage area.- 112 square miles. 

Records available.- June 1947 to September 1948. 

Extremes.- Maximum discharge during year, 945 second-feet Dec. 15 (gage height, 7.90 feet, 

from Iloodmark), from rating curve extended above 600 second-feet by logarithmic plotting; no flow Nov. 8. 1947-48: Maximum discharge, that of Dec. 15, 1947; no flow Nov. 8, 1947. 

Flood of August 1945, the highest of recent years and caused by tropical storm, 

reached a stage of 18.1 feet, gage datum, at railroad bridge 0.2 mile downstream, from 

information by observer, local resident. 

Remarks.- Records fair. Gage read twice daily. Low flow is affected by drainage from 

irrigated lands. No diversion above station. 

Discharge, in second-feet, water year October1947 to September 1948 

Month Maximum Minimum Mean 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 

2 

3 

4 

5 

4.5 

3.8 

4.2 

5.4 

6.0 

0.6 

.5 

.4 

.2 

.2 

6.0 

4.1 

4.2 

3.8 

5.5 

2.7 

2.6 

2.5 

2.3 

2.3 

111 

72 

174 

236 

228 

20 

15 

13 

12 

17 

2.1 

1.9 

1.9 

1.9 

1.9 

24 

29 

21 

13 

6.4 

30 

28 

25 

24 

28 

38 

40 

39 

45 

19 

24 

27 

31 

32 

17 

18 

21 

24 

23 

6 

7 

8 

9 

10 

6.1 

5.0 

3.6 

2.8 

2.5 

.2 

.2 

.1 

.2 

.2 

14 

16 

19 

18 

12 

2.3 

2.2 

2.3 

2.2 

2.2 

144 

81 

50 

43 

40 

69 

61 

45 

197 

538 

1.9 

1.8 

1.6 

1.6 

1.6 

12 

16 

13 

7.5 

6.4 

30 

25 

17 

1! 

12 

48 

40 

39 

45 

38 

31 

50 

27 

25 

24 

23 

22 

25 

37 

55 

11 

12 

13 

14 

15 

1.9 

1.7 

1.4 

1.3 

1.1 

.4 

.6 

.6 

1.0 

1.5 

9.6 

11 

331 

653 

822 

2.0 

2.0 

2.0 

1.6 

1.7 

31 

173 

252 

157 

77 

323 

132 

66 

34 

20 

1.5 

1.6 

2.8 

9.1 

13 

10 

21 

57 

35 

18 

13 

18 

21 

22 

22 

30 

30 

35 

3.1 

25 

23 

23 

24 

24 

26 

59 

53 

39 

28 

19 

16 2.0 24 593 3.3 40 14 14 12 23 24 31 15 

17 

18 2.8 

3.6 27 14 394 201 14 9.9 22 

16 10 

7.5 16 

19 11 

12 23 

21 25 

24 31 33 19 

26 

19 

20 3.2 

2.5 21 

23 112 64 70 340 12 8.9 6.3 5.2 18 15 23 

198 19 

18 25 

23 32 

32 29 

27 

21 

22 

23 

24 

1.5 

1.3 

.9 

.7 

11 

8.8 

56 

210 

37 

22 

15 

11 

220 

103 

52 

28 

10 

57 

104 

219 

4.0 

3.8 

3.4 

3.0 

14 

17 

30 

40 

210 

77 

39 

29 

14 

9.7 

11 

13 

26 

27 

23 

21 

31 

30 

30 

32 

25 

23 

22 

25 

25 .5 122 8.1 17 204 2.7 35 30 13 19 46 25 

26 .5 60 6.0 14 126 2.5 31 40 14 18 50 22 

27 

28 

.4 

.4 31 

20 4.6 

3.5 48 

145 78 

48 2.5 2.3 33 

23 60 84 18 

21 16 

14 45 

35 15 11 

29 

30 

.4 

.6 13 

8.9 3.4 

3.1 132 

132 33 2.2 

2.2 20 

18 85 

40 24 28 14 14 23 

19 8.9 

8.3 

31 .8 3.0 168 2.2 35 15 16 

Second- Runoff in 

foot-days acre-feet 

October 73.4 6.1 0.4 2.37 146 

November 656.6 210 .1 21.9 1,300 

December 3,409.9 822 3.0 110 6,760 

Calendar year 

January 1,538.1 340 1.6 49.6 3,050 

February 2,846.9 252 8.9 98.2 5,650 

March 1,635.8 538 2.2 52.8 3,240 

April 389.2 40 1.5 13.0 772 

May 1,284.3 210 6.4 41.4 2,550 

June 597.7 30 9.7 19.9 1,190 

July 883 48 14 28.5 1,750 

August 906 50 16 29.2 1,800 

September 764.2 59 8.3 25.5 1,520 

Water year 1947-48 14,985.1 822 .1 40.9 29,730 

Peak discharge (base, 1,000 sec.-ft.).- No peak above base. 
. 

126 BRAZOS RIVER BASIN 

Fairchild Creek near Needville, Tex. 

Location.- Staff gage, lat. 29°26,45", long. 95°45,40", at county road bridge 3.0 miles upstream from mouth and 5i miles northeast of Needville, Fort Bend County. Datum of 

gage is 60.4 feet above mean sea level, datum of 1929, Houston supplementary adjustment of 1943. 

Drainage area.- 24.9 square miles. 

Records available.- May 1947 to September 1948. 

Extremes.- Maximum discharge observed during year, 312 second-feet Dec. 13 (gage height, 

5.8U feet); no flow at times. 

1947-48: Maximum discharge, 792 second-feet May 21, 1947 (gage height, 8.36 feet, 

from floodmark); no flow at times. 

Maximum stage since about 1910, 12.5 feet in August 1945, from floodmark 195 feet 

downstream and 520 feet to left of gage, from information by local resident. 

Remarks.- Records good. Cage read twice daily. No diversion above station. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 0 0.2 15 2.2 0 O 000 00000 C.C,J cl ;.-. 2 C.NCS.1 •-• r 

2 0 .1 13 1.9 0 

3 0 .7 78 1.5 0 

4 0 .7 74 1.2 0 

5 0 4.2 40 3.4 0 

6 0 3.S 17 21 0 

7 0 1.6 9.0 6.1 0 

8 0 .8 

9 0 .5 10 0 .4 

6.6 5.7 .1 13 159 0 

6.6 79 0 

4.2 18 .1 71 7.6 9.0 34 4.8 1.9 14 3.0 .8 7.0 1.6 .3 

11 0 .3 12 0 2.0 13 0 202 14 0 75 15 0 142 

16 0 35 17 .1 12 3.7 1.4 .1 2.8 1.0 0 

1.9 .8 0

..

18 .3 7.6

6.0 1.4 .6 5.3 1.1 .4 5.5 

2.4 .2 1.9 

19 1.3 20 .8 3.2

21 .6 2.2 2.6 17 .2 1.0 ,OtOCG .

.• 

22 1.6 23 27 1.0 15 .2 .4

24 7.5 .8 62 .2 .2 2.2 .1 0 • 

30 

14 27 1.4 .3 8.7 0 .5 28 .8 .2 5.1 0 1.7 

29 .4 .2 5.3 0 .7 

30 .3 .2 - 0 .2 31 .2 - 0 0 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 0 0 0 0 0 

November 46.9 27 0 1.56 93 December 505.3 202 .1 16.3 1,000 

Calendar year -- - - -

January 389.1 72 0 12.6 772 

February 572.8 78 1.1 19.8 1,140 March 321.1 159 0 10.4 637 April 0 0 0 0 0 

May 30.0 9.0 0 .97 60 

June 0 0 0 0 0 July 0 0 0 0 0 

August 0 0 o o 0 

September 0 0 0 0 0 

Water year 1947-48 1,865.2 202 0 5.10 3,700 

25 .6

26 1.6 .4 0 .3

Ils;h:rle2p73.am.!Og.sec.-ft.).- Dec. 13 (8 a.m.) 312 sec.-ft.; Jan. 19 (8 p.m.) 244 sec.-ft.; 

Mar. 
COLORADO RIVER BASIN 127 

Colorado River near Ira, Tex. 

Location.- Water-stage recorder, lat. 32°32,, long. 101°03,, ?69 feet downstream from 

county road bridge, 311 miles upstream from Willow Creek, 3t miles downstream from Bluff 

Creek, 4.4 miles southwest of Ira, Scurry County, and 7 miles downstream from Bull 

Creek. Prior to Oct. 30, 1947, staff gage at site 75 feet upstream at same datum. 

Drainage area.- 3,617 square miles, of which 2,590 square miles is probably noncontributing 

Records available.- October 1947 to September 1948. 

Extremes.- Maximum discharge during year, 20,500 second-feet July 6 (gage height, 21.35 

feet), from rating curve extended above 9,600 second-feet by conveyance-slope method; 

no flow at times. 

Maximum stage known, about 32 feet June 16, 1913, from levels to a point about 255 

feet upstream from gage, from information by local resident. Flood of May 1947 reached 

a stage of 25.1 feet, from floodmark at bridge 269 feet upstream from gage. 

Remarks.- Records good except those above 10,000 second-feet, which are poor. Staff gage 

read once or twice daily. No diversion above station. 

Discharge, in second-feet, water year October 1947 to September 1946 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. o 0 00000 00000 00 000 W WWW 111.. 2r.8:1 :J CTOGDNU n OW.V.. r80000

0

0000000000

1

4W 

N N 

.0. N N.M0 MJW00 .00000000 0 

N.6. 0,W ()WOW 

1 0 0.4 0.9 0.9 0.9 0.7 2 0 .4 1.1 .7 .9 1.1 3 0 .2 95 .9 1.1 ' .9 4 AO .2 412 1.1 1.5 .5 

36 298 10 20 86 5.4 13 26 3.3 9.1 13 2.8 5 a0 .2 133 .7 1.5 .4 5,430 7.6 1.8

6 .1 .2 37 .9 1.3 .5 13,600 5.0 .9 7 .1 .1 16 .7 1.5 .9 3,300 3.3 .4 8 .1 .2 9.1 .7 .9 .4 324 2.0 .4 9 .1 .2 6.0 .9 .7 .7 112 1.3 2.6 10 a.1 .2 5.0 .5 .4 .4 48 .9 .1

11 .1 .2 3.6 .5 .5 .2 29 .4 .1 12 0 .2 3.6 .9 .2 .2 18 .2 .1 13 13 .2 .1 9.6 .2 .1 7.2 .2 .1 

5.0 .2 0 3.6 .2 .1 

.1 .4 2.8 .4 .4 .2 14 .1 1.8 2.5 .4 .5 .2 15 .1 1.1 2.2 .5 .4 .2 

16 0 .7 1.5 1.1 .4 .2 17 0 8.9 1.3 .2 .4 .2 18 .1 26 1.1 .4 .4 .2 2.8 .2 .1 19 a.1 16 1.1 .7 .7 .2 1.8 .2 .1 20 .1 5.7 1.1 .5 .2 .2 1.5 .2 .1

21 0 3.3 .9 .7 .2 .2 1.1 .2 .1 22 0 2.2 .9 .7 .2 it 5.7 .2 78 23 0 1.8 .9 .7 .2 .2 81,550 .2 47 24 a0 1.5 .9 .9 .5 .1 a476 .2 7.2 25 .2 1.3 .9 .9 .2 a256 .1 2.8 

65 .1 8.5 38 .1 1.1 a17 12 .2 

.1 

26 18 1.1 .7 1.1 9.8 .1 27 3.3 1.8 .9 .7 10 .1 28 2.0 .9 .9 .7 1.8 .1 29 1.1 .9 .9 .7 1.3 .1 all 46 .2 30 .7 .9 1.1 .7 0 .2 31 .9 1.1 1.1- .1 a7.6 8.6 60 10 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 

November 

December 

27.4 

79.0 

746.0 

18 

26 

412 

0 

.1 

.7 

0.88 

2.63 

24.1 

54 

157 1,480 

Calendar year _ - - - January 

February 

March 

April 

May 

June 

July 

August 

September 

22.5 

39.0 

9.7 

2.2 4,776.9 

8,411.9 

25,471.0 523.2 

173.9 

1.1 

10 

1.1 

.7 2,600 

2,680 

13,600 298 

78 

.2 

.2 

0 

0 

0 

0 

1.1 

.1 

0 

.73 

1.34 

.31 

.07 154 

280 

822 

16.9 

5.80 

45 

77 

19 

4.4 9,470 

16,680 

50,520 

1,040 345 

Water year 1947-48 40,282.7 13,600 0 110 79,890 

Peak discharge(base, 1,000 sec.-ft.).- May 16 (5:30 a.m.) 3,980 sec.-ft.; May 25 p m. 4,150 sec.-ft.; June 1 (6:15- p.m.) 3,960 sec.-ft.; June 28 (12 m.)5,050 sec.-ft.; July 6 (8 p m.)20,500 aec.-ft.; July 23 (6 p.m.) 5,690 sec.-ft. a No gage-height record; discharge interpolated or computed on basis of recorded range in stage and weather records. f Computed on basis of partly estimated gage-height record. 

g Computed from graph based on gage readings. 
0

128 COLORADO RIVER BASIN 

Colorado River at Colorado City, Tex. 

Location.- Water-stage recorder and concrete control, lat. 32°24, , long. 100°51, , at 

Colorado City, Mitchell County, 3,517 feet upstream from bridge on U. S. Highway 80, 

4,100 feet upstream from Texas & Pacific Railway bridge, and 1.6 miles upstream from 

Lone Wolf Creek. Datum of gage is 2,030.2 feet above mean sea level, datum of 1929, 

Fort Worth supplementary adjustment of 1942. 

Drainage area.- 4,082 square miles (revised), of which 2,590 square miles (revised) is 

probably noncontributing. 

Records available.- November 1923 to August 1925, May 1946 to September 1948. 

Extremes.- Maximum discharge during year 24,900 second-feet July 6 (gage height, 22.37 

reet. from floqdmark); no flow at times. 

1924-25, 1946-48: Maximum discharge, that of July 6, 1948; no flow at times. 

Maximum stage known, 35.9 feet June 20, 1939, present site and datum, based on 

floodmarks 1,000 feet upstream and 3,740 feet downstream from gage (discharge, 66,000 

second-feet, by slope-area method at site 2.5 miles upstream from gage). 

Remarks.- Records good. No diversions above station. Records of chemical analyses for 

---7RFF year 1948 are given in Water-Supply Paper 1133. 

Diecharge, in second-feet, water year October1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May July Aug. Sept. 

1 0 2.9 2.3 2.0 2.6 17 0.3 0 78 250 26 2 0 2.6 2.6 2.3 2.6 9.9 1 0 ;1 70 37 388 12 3 

4 

5 

0 

0 

0 

1.7 

2.0 

1.5 

30 

610 

422 

2.0 

2.0 

2.3 

2.9 

2.9 

3.2 

8.3 

6.2 

5.6 

o 

0 

0 

0 

0 

0 

81,810 g354 

118 

23 

16 7,430 

116 

51 

23 

9.1 

6.2 

3.6 

6 4.3 

11 1.5 

1.1 121 

48 2.0 

2.0 3.2 

3.2 4.5 3.6 0 

0 

0 

0 

53 16,000 

26 10,100 16 

11 2.3 

1.7 

8 5.6 .9 23 2.0 2.9 3.6 0 0 14 1,030 8.3 1.3 9 3.2 .7 13 2.0 3.2 3.6 0 0 8.2 319 5.6 2.3 10 2.3 1.1 9.9 1.7 2.6 3.2 0 0 6.2 146 4.5 13 

11 1.5 .7 8.3 1.7 2.0 2.9 0 0 4.2 80 3.6 11 12 1.1 .7 6.2 2.0 2.0 3.2 0 0 2.8 66 2.9 5.6 13 1.1 1.1 4.0 1.7 2.6 2.9 0 0 2.3 39 2.0 3.6 14 .7 1.5 3.6 1.7 2.3 2.6 0 0 2.0 26 1.5 2.6 15 .4 19 3.6 1.5 2.0 2.6 0 0 .8 17 1.3 1.7 

16 

17 .3 

.2 

12 

12 3.2 

3.2 1.5 

1.3 2.0 

2.0 2.0 

1.7 0 0 

1,gg 2 

0 

12 

9.9 .9 

.6 1.3 

.9 18 0 26 2.9 1.5 1.7 2.0 0 59 0 8.3 .4 .7 19 0 62 3.6 1.7 2.0 2.6 0 21 0 6.2 .4 .6 20 0 34 2.9 1.7 1.5 1.5 0 12 0 4.0 .3 .4 

21 0 18 2.6 1.7 1.5 0 9.9 0 3.2 .1 .6 22 0 12 2.6 1.7 1.3 3.9 5.0 0 7.4 .1 .6 23 0 9.1 2.3 2.0 1.1 7.2 11 0 449 0 12 24 

25 

0 

348 6.2 

5.0 2.3 

2.3 2.3 

2.0 1.3 1.5 8.6 3.2 6.3 2,000 0 

0 

2,130 508 0 

0 

65 

20 

26 

27 

28 

29 

30 

31 

156 

44 

17 

9.9 

6.2 

4.0 

4.0 

3.6 

3.2 

2.9 

2.6 

2.0 

1.7 

2.0 

1.7 

1.7 

2.0 

2.3 151 2.6 2,180 2.0 83 2.3 31 2.3 

2.6 

1.3 

.4 

.6 

.3 

.4 

.2 

1.3 

.6 

.7 

.2 

0 

g1,690 g367 

g205 

g78 

g37 

g14 

0 741 1,230 236 

213 

90 

53 

28 

20 

17 

0 

0 

0 

117 

83 

12 

7.6 

5.6 

6.2 

4.5 

Month Secondfoot-days Maximum Minimum Mean Runoff in 

acre-feet 

October 616.8 348 0 19.9 1,220 November 251.6 62 .7 8.39 499 December 1,346.5 610 1.7 43.4 2,670 

Calendar year 1947 48,742.2 11,700 0 134 96,680 

January 

February 

March 

60.4 2,501.1 99.8 

2.6 2,180 17 

1.3 

1.1 

.2 

1.95 

86.2 

3.22 

120 4,960 198 

April 

May 

June 

26.1 5,865.2 

8,749.4 

8.6 2,000 

2,520 

0 

0 

0 

.87 189 

292 

52 11,630 

17,350 

July 

Auguet 

September 

38,966.0 

1,087.5 240.0 

16,000 388 

65 

3.2 

0 

.4 

1,257 35.1 

8.00 

77,290 

2,160 476 

Water year 1947-48 59,810.4 16,000 0 163 118,600 

Peak discharge rase, 4,000 sec.-ft.).- Feb. 27 (5:30 a.m.) 6,110 sec.-ft.; June 1 (9 p.m.) 4,100 sec.-ft.; July A 1 a.m.) 24,900 sec.-ft.; July 24 (2:30 a.m.) 5,140 sec.-ft. g Computed from graph based on gage readings. 
COLORADO RIVER BASIN 129 

Colorado River at Robert Lee, Tex. 

Location.- Water-stage recorder, lat. 31°53,05", long. 100°28,45", at bridge on State Highway a08 in Robert Lee, Coke County, half a mile upstream from Mountain Creek. Datum of 

gage is 1,771.7 feet above mean sea level, datum of 1929 (levels by Bureau of Reclamation) 

Drainage area.- 15,770 square miles, of which 11,600 square miles (revised) is probably 

noncontributing. 

Records available.- April 1939 to September 1948. September 1915 to September 1920 (October 1918 to September, revised, 1920, gage heights only) at site near Bronte, 16 miles 

downstream. October 1923 to December 1927 at site near Robert Lee, 9 miles downstream. 

Records equivalent except during periods of local runoff between sites. 

Average discharge.- 15 years (1915-18, 1924-27, 1939-48), 211 second-feet. 

Extremes.- Maximum discharge during year, 28,000 second-feet July 8 (gage height, 20.61 

feet); no flow Oct. 24, May 2-18. 

1939-48: Maximum discharge, 31,700 second-feet June 22, 1939 (gage height, 21.70 

feet, from graph based on gage readings), by slope-area method; no flow at times. 

Remarks.- Records good. About 2,200 acres irrigated above station. Records of chemical 

analyses and water temperatures for water year 1948 are give in Water-Supply Paper 1133. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 8ggal S =27-1 "":,- 2=2' 0.- .-4 .O N W 0 

V

6 000 000

' 

N 

)N.4

00 00000 000,0",NN ,F LOC- oonm on , 4n,1 n

=28P 

,4 

385 202 62 214 276 35 1 0.6 53 12 12 4.6 216 • 5.0 2 .4 36 11 12 4.6 121 4.6 3 .4 50 139 11 5.0 76 4.1 132 490 55 4 .3 23 204 11 5.0 54 3.7 85 376 56 5 .2 18 767 11 5.0 43 3.7 328 245 37 

12,400 171 26 23,900 121 21 18,600 94 18 1,900 74 16 756 60 14 

6 .3 15 605 11 5.0 37 3.2 7 .8 12 376 11 5.0 32 3.2 8 8.2 11 147 11 4.6 27 2.9 

9 30 11 81 11 4.6 24 2.6 10 20 9.9 56 11 4.6 22 2.3

11 16 9.2 43 11 4.1 20 2.0 460 51 13 12 13 8.5 37 11 7.9 16 1.4 327 42 11

13 8.5 7.9 31 11 9.2 15 1.4 249 36 9.9 196 33 8.5 165 32 7.9 

126 27 6.7 94 25 6.1 78 23 5.5 62 21 6.1 

14 5.0 8.5 26 11 8.5 11 1.2 15 3.2 13 24 10 7.9 9.2 1.1 

16 2.0 13 21 10 6.7 8.5 .9 17 1.2 16 19 9.2 6.1 8.5 .8 18 .8 59 16 8.5 6.1 7.9 .8 19 .6 43 16 8.5 6.1 7.3 .7

20 .2 54 15 8.5 5.5 F.7 .5 49 18 6.1 

21 .1 107 14 7.9 5.0 247. .5 40 16 5.5 35 14 346 33 13 1,220 446 11 441 2,100 9.9 142 

657 9.9 70 490 8.5 40 516 8.5 37 306 9.9 26 

22 .1 83 13 7.9 4.6 437 1.2 23 .1 58 13 6.7 4.6 158 2.0 

24 .8 44 13 6.7 4.6 70 1.4 25 2,850 33 13 6.1 4.6 43 .9

26 3,570 28 13 5.5 511 30 .6

27 890 24 13 5.0 3,020 22 .4 28 286 20 13 4.6 2,090 18 .3 29 138 17 13 4.6 450 12 .2 30 85 15 12 4.6 - 7.3 .2 31 64 - 12 4.6 - 5.5 -

222 75 20 193 166 

Second- Runoff in Month Maximum Minimum Mean toot-days acre-feet 

October 7,993.8 3,570 0.1 258 15,860 November 880.0 107 7.9 29.3 1,750 December 2,788 767 11 89.9 5,530 _ Calendar year 1947 100,329.5 20,500 0 275 199,000 - __ 

January 274.9 12 4.6 8.87 545 February 6,210.5 3,020 4.1 214 12,320 March 1,811.9 437 5.5 58.4 3,590 April 53.8 5.0 .2 1.79 107 May 9,057.3 2,240 0 292 17,960 June 11,180.5 3,170 2.9 373 22,180 July 65,544 23,900 33 2,114 130,000 August 2,758.7 490 8.5 89.0 5,470 September 2,768.3 1,220 5.5 92.3 5,490 

Water year 1947-48 111,321.7 23,900 0 304 220,800 

Peak discharge (base, 7,700 sec.-ft.).- Oct. 26 (1:30 a.m.) 8,540 sec.-ft.; July 8 (3 a.m.) 28,000 sec.-ft. Note.- Discharge Oct. 1-7, 11-23, 30, Nov. 1-5, Mar. 14-20, Mar. 29 to May 17, June 20-24, 29, JuT7-0-12 computed from graph based on gage readings. 
		

130 COLORADO RIVER BASIN 

Colorado River at Ballinger, Tex. 

Location.- Water-stage recorder, lat. 31°43'50", long. 99°56'25", at bridge on U. S. 

HISOWNI 83 in Ballinger, Runnels County, 2,000 feet upstream from Elm Creek. Datum 

of gage is 1,593.7 feet above mean sea level, datum of 1929. 

Drainage area.- 16,840 square miles, of which 11,600 square miles (revised) is probably 

noncontributing. 

Records available.- June 1907 to September 1948. (June 1907 to November 1915, monthly 

records only, in Water-Supply Paper 850.) U. S. Weather Bureau collected gage-height 

records in this vicinity from 1903 to 1929. 

Average discharge.- 41 years, 404 second-feet. 

Extremes.- Maximum discharge during year, 28,300 second-feet July 9 (gage height, 21.00 

feet); minimum, 0.7 second-foot Apr. 21. 

1907-48: Maximum discharge, 75,400 second-feet Sept. 18, 1936 (gage height, 28.6 

feet); no flow at times. 

Maximum stage known, about 36.0 feet In 1884, present site and datum, from infor- mation by local residents. A stage of about 32.0 feet occurred Aug. 6, 1906, present 

site and datum, from floodmarks (backwater from Elm Creek). 

Remarks.- Records good. Small diversions above station for irrigation affect low flow. 

Revisions (water years).- W 850, W 878: 1916. 1917. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

~~ ' N ' 

O 0. . rs (TonNN MNNW.t0.gr8 N IA ♦ITN

. . . . . . 

WWW MO NON 

90 18 15 9.0 461 9.9 4:8 1,460 746 500 107 68 17 14 9.0 264 9.0 4.0 1,410 393 252 96 53 49 14 9.0 167 7.2 4.0 2,760 839 235 60 40 930 13 9.0 107 6.6 4.0 1,800 458 481 43 32 366 13 9.0 82 6.6 3.4 1,120 2,020 347 36 

28 

22 1,100 748 13 12 9.0 9.0 66 55 6.6 

6.6 2.6 

2.2 518 

320 11,800 

18,800 227 159 48 

36 18 484 12 .9.0 45 6.0 2.2 214 22,600 120 221 16 243 12 9.0 36 5.2 2.2 144 16,600 96 263 15 152 12 9.0 34 4.0 2.1 101 1,590 79 87 

14 104 12 9.0 28 3.2 3.7 71 812 66 38 13 79 12 9.0 26 3.2 4.8 50 535 55 28 14 60 .11 8.4 24 2.6 3.4 43 383 45 24 13 50 11 8.4 22 2.4 3.7 48 316 43 21 11 45 11 8.4 18 2.4 4.0 30 256 36 19 

11 36 11 8.4 16 1.7 4.4 21 218 34 18 13 34 9.9 8.4 17 1.7 4.0 16 190 32 17 50 28 9.9 8.4 15 2.1 3.2 12 159 28 15 120 26 9.0 8.4 14 2.1 209 9.9 141 26 13 82 24 9.0 7.2 15 1.5 222 8.4 124 24 14 

21 45 22 11 7.2 15 1.2 117 8.4 111 24 14 

22 77 21 11 6.6 229 1.8 66 7.8 101 22 16 23 111 19 11 6.6 350 90 43 6.0 201 21 496 24 76 24 9.9 6.6 174 83 114 4.4 120 19 777 

25 

26 

27 

28 

29 

30 

31 

60 17 9.0 6.6 82 283 789 27 1,380 18 349 

43 16 8.4 7.2 45 68 862 3,250 1,210 17 204 36 16 9.0 1,710 30 24 2,830 678 1,160 17 120 28 16 5,980 18 13 930 137 466 17 87 22 15 h b8 1,030 15 8.4 468 55 466 17 60 21 15 - 13 6.0 511 194 277 24 58 - 16 9.0 - 11 - 970 - 186 34 

Month Second- Maximum Minimum foot-days 

• Runoff in Mean acre-feet 

October 

November 

December 

Calendar year 1947 

January 

February 

March 

April 

May 

June 

July 

August 

September 

Water year 1947-48 

14,926.9 8,090 2.2 1,242 120 11 4,790 1,100 15 - _ 

- 135,572.1 20,200 2.1 - -

338.1 15 - 6,934.8 3,980 6.6 2,494 461 11 669.0 283 1.2 8,193.7 2,830 2.1 14,523.9 3,250 4:4 84,658 22,600 101 3,115 500 17 3,385 777 13 

145,270.4 22,600 1.2 

482 29,610 41.4 2,460 155 9,500 

371 268,900 

10.9 671 239 13,750 80.5 4,950 22.3 1,330 264 16,250 484 28,810 2,731 167,900 100 6,180 113 6,710 

397 288,100 

Peak discharge (base, 9,000 sec.-ft.).- Oct. 26 (1 a.m.) 9,380 sec.-ft.; July 9 (5 a.m.) 28,300 sec.-ft. •Winter discharge measurement made on this day. b Stage-discharge relation affected by ice. 
		

COLORADO RIVER BASIN 131 

Colorado River at Winchell, Tex. 

Location.- Water-stage recorder, lat. 31°28'05", long. 99°09'45", at bridge on U. S. 

Highway 283, 0.3 mile south of Winchell, Brown County, and 6.2 miles downstream from 

Home Creek. Datum of gage is 1,264.86 feet above mean sea level, datum of 1929. 

Drainage area.- 24,580 square miles, of which 11,900 square miles (revised) is probably 

noncontributing. 

Records available.- January 1939 to September 1948. November 1923 to September 1934 at 

site near Milburn, 4.2 miles downstream. 

Average discharge.- 19 years (1924-34, 1939-48), 741 second-feet. 

Extremes.- Maximum discharge during year, 46,000 second-feet July 9 (gage height, 39.68 

feet); minimum, 0.7 second-foot Oct. 3. 

1923-34, 1939-48: Maximum discharge, 76,100 second-feet Oct. 15, 1930, at site 

then in use (gage height, 51.8 feet, present site and datum); no flow at times. 

Maximum stage known, 62.2 feet Sept. 19, 1936, present site and datum, from information by Gulf, Colorado & Santa Fe Railway at railway bridge 1,000 feet above present 

gage. 

Remarks.- Records good except those for periods of no gage-height record, which are poor. 

Diversions above station for irrigation and municipal supply. Flow partly regulated 

by Lake Nasworthy (capacity, 13,720 acre-feet, with flashboards) on South Concho River 

(see p. 146). 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 12 326 53 36 20 1,470 43 2 5.5 224 48 37 22 835 36 3 4.8 168 45 43 21 492 32 4 4.8 131 53 35 21 319 27 5 3.2 104 580 32 22 226 25 

215 1,940 16 447 2,150 15 620 835 14 2,520 394 13 2,020 290 13 

6 4.2 88 898 28 22 170 22 5,200 550 58 7 4.2 72 3,340 32 22 136 20 20,700 370 52 8 3.7 61 1,340 31 21 112 17 37,200 270 640 9 13 53 1,080 28 22 95 14 37,000 205 3,090 10 20 45 564 30 22 82 13 18,500 158 310 

11 177 39 364 29 22 73 10 2'3,310 228 311 12 250 38 255 28 21 65 9.1 1,940 102 219 13 143 34 191 27 20 58 8.4 1,400 85 123 14 84 32 154 27 20 53 7.7 1,250 62 79 15 64 34 129 26 20 49 7.0 806 62 56 

16 200 38 108 26 19 44 6.0 17 363 32 91 26 18 43 a5.1 18 164 28 79 25 18 39 3.6 19 82 27 71 24 19 35 3.2 20 50 26 65 25 17 34 3.2 

EEfil.;] zA iat =4ii 

..vv NCAINF, NNNOPPP Fo4v2 -§ 1;6 12E 

564 55 42 426 50 35 345 45 29 a327 39 26 a298 35 22 

21 28 24 73 24 20 '33 2.7 a270 33 20 22 32 27 61 26 22 29 2.7 23 17 108 51 26 21 28 2.7 24 8.0 95 48 24 20 27 3.2 25 209 76 44 20 20 217 23 

26 2,300 113 41 19 21 215 1,290 27 8,400 104 32 17 23 141 675 28 3,190 84 40 15 740 95 277 29 1,420 30 1,080 72 

62 38 37 20 

17 4,190 - 72 

57 157 

105 31 532 38 18 - 50 -

a243 29 18 a217 26 188 a192 26 385 a176 24 1,650 

8477 74 976 1,740 33 546 1,790 21 333 833 20 237 568 19 178 519 18 

Second- Runoff in Month Maximum Minimum Mean foot-day. acre-feet 

October 18,868.4 8,400 3.2 609 37,420 November , 2,365 326 24 78.8 4,690 December 10,011 3,340 32 323 19,860 

Calendar year 1947 192,424.3 20,500 0 527 381,600 -

January 821 43 15 26.5 1,630 February 5,486 4,190 17 189 10,880 March 5,394 1,470 27 174 10,700 April 2,850.6 1,290 2.7 95.0 5,650 May 16,226.1 3,600 9.1 523 32,180 June 19,872 3,170 10 662 39,420 July 142,113 37,200 176 4,584 281,900 August 8,248 2,150 18 266 16,360 September 9,694 3,090 13 323 19,230 

Water year 1947-48 241,949.1 37,200 2.7 661 479,900 

Peak discharge ase, 9,200 sec.-ft.).- Oct. 26 (11 p m.) 9,340 sec.-ft.; July 9 (2 a.m.) 46,000 sec.-ft. a No gage-height record; diecharge computed on basis of weather record and recorde for nearby eta- time. 

d Doubtful gage-height record; discharge computed as explained in footnote a. 

f Computed on basis of partly estimated gage-height record. 
132 COLORADO RIVER BASIN 

Colorado River near San Saba, Tex. 

Location.- Water-stage recorder, lat. 31°13'05", long. 98°33'50", at bridge on U. S. 

Highway 190, 5.2 miles downstream from San Saba River and 9.2 miles east of San Saba, 

San Saba County. Datum of gage is 1,096.22 feet above mean sea level, datum of 1929. 

Drainage area.- 30,600 square miles, of which 11,900 square miles (revised) is probably 

noncontributing. 

Records available.- August 1930 to September 1948. October 1915 to October 1922 at site 

near Chadwick, 1.2 miles upstream. October 1923 to December 1934 at site near Tow, 

44 miles downstream. 

Average discharge.- 23 years (1916-19, 1920-22, 1930-48), 1,692 second-feet. 

Extremes.- Maxfffium discharge during year, 34,100 second-feet July 11 (gage height, 23.78 

Feet); minimum, 37 second-feet Oct. 7-9 (gage height, 1.73 feet). 

1915-22, 1930-48: Maximum discharge, 224,000 second-feet July 23, 1938 (gage 

height, 63.2 feet, present site, based on floodmarks at site then in use); minimum 

observed, 1.5 second-feet Aug. 22, 23, 1918. 

Maximum stage known prior to 1938, 58.4 feet Sept. 25, 1900 (discharge, 184,000 

second-feet), present site, based on floodmarks at former site. 

Remarks.- Records good except those for period of no gage-height record, which are fair. 

Diversions above station for irrigation and municipal use. Flow partly regulated by 

Hords Creek Reservoir (see p. 161) and Brownwood Reservoir (see p. 157) in Pecan 

Bayou Basin, and Lake Nasworthy on South Concho River (see p. 146), having a combined 

capacity of 171,000 acre-feet. Record of chemical analyses and water temperatures for 

water year 1948 are given in Water-Supply Paper 1133. 

Revisions (water years).- W 858: 1900(M), 1922(M), 1936(M). 

Discharge, in second-feet, water year October 1947 to SeptembeS' 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 792 146 182 109 3,780 139 282 1,490 666 877 74 

525 

364 

270 

136 

133 

179 

163 

171 

167 

115 

115 

115 

1,680 

1,020 754 

123 

115 

106 

214 

175 

142 

972 1,660 

2,130 

702 

420 

806 

5,330 

3,420 

a1,180 

63 

52 

48 

258 198 160 117 570 104 123 2,940 3,240 a910 44 

p 53 S T. '41 3".. 8tcs, rE) 2 

2 

3 

4 

5 

6 186 198 146 117 435 104 1,150 2,070 3,770 a738 43 

7 156 2,700 142 120 355 101 1,190 1,660 5,410 a606 44 

8 136 5,890 139 120 298 98 349 1,040 13,000 g500 44 

9 120 2,020 133 120 250 96 179 726 20,300 a420 1,070 

10 112 1,460 126 117 222 88 117 515 28,800 a346 5,560 

104 972 123 115 198 86 4,300 425 33,000 a286 1,250 98 694 123 115 179 112 6,450 360 13,600 a238 792 

86 525 120 115 163 417 2,590 368 2,120 186 585 

11 

12 

13 

14 88 450 115 115 152 102 1,080 346 1,440 156 391 

15 130 378 112 115 146 69 732 218 1,280 136 266

16 139 328 109 112 139 65 480 156 880 126 198 

17 112 290 106 112 126 60 332 175 688 160 156 18 101 262 104 115 123 177 238 163 560 117 136 

19 96 246 104 115 117 202 182 115 455 98 117 

20 101 222 104 112 115 148 146 86 382 88 112 

21 96 206 106 109 115 96 139 69 328 81 98 

22 96 194 109 106 348 73 106 56 282 74 91 23 106 182 112 106 167 362 96 54 250 71 151 

24 115 171 109 106 117 142 88 79 222 128 693 

25 117 167 106 3,650 101 631 79 65 202 194 302 

26 142 160 106 572 96 756 199 1,040 190 198 1,310 27 160 156 109 400 113 1,020 1,060 546 182 171 1,090

28 142 152 112 206 306 1,060 1,880 2,010 1,440 142 754 

29 175 152 112 278 250 633 3,040 2,240 1,800 163 540 

30 160 149 109 202 405 1,680 1,080 990 106 396 

31 146 109 160 - 3,790 - 704 86 

Second- Runoff in Month Maximum Minimum Mean. foot-days acre-feet 

October 18,539 7,560 37 598 36,770 November 5,283 792 86 176 10,480 December 19,262 5,890 133 621 38,210 _ - Calendar year 1947 246,975 18,300 35 677 489,800 

January 3,848 182 104 124 7,630 February 7,839 3,650 106 270 15,550 March 12,777 3,760 96 412 25,340 April 7,690 1,060 60 256 15,250 May 32,608 6,450 79 1,052 64,680 June 24,854 2,940 54 828 49,300 July 138,109 33,000 182 4,455 273,900 August 17,332 5,330 71 559 34,380 September 16,470 5,560 43 549 32,670 

Water year 1947-48 304,611 33,000 37 832 604,200 

Peak discharge base, 19,300 sec.-ft.).- July 11 (1 p.m.) 34,100 sec.-ft. 

a No gage-height record; discharge computed on basis of estimated gage-height record. 

g Computed from graph based on gage reading. 
		

		

		

		

		

		

		

		

		

		

		

		

		

		

COLORADO RIVER BASIN 133 

Buchanan Reservoir near Burnet, Tex. 

Location.- Selsyn indicator, lat. 30°45'05", long. 98°25,00", at Buchanan Dam on Colorado River, 1 mile upstream from bridge on State Highway 29 and 10 miles west of 

Burnet, Burnet County. Datum of gage is 0.48 foot above mean sea level, datum of 

1929 (levels by Lower Colorado River Authority). 

Drainage area.- 31,250 square miles, of which 11,900 square miles (revised) is probably 

noncontributing. 

Records available.- May 1937 to September 1948. 

Extremes.- Maximum contents observed during year, 775,000 acre-feet July 13-15 (gage 

height, 1,010.0 feet); minimum observed, 483,000 acre-feet May 6 (gage height, 993.6 

feet). 

1937-48: Maximum contents, 1,004,000 acre-feet July 27, 1938 (gage height, 1,020.5 

feet; several taintor gates were open); minimum after filling of reservoir in July 

1938, that of May 6, 1948. 

Remarks.- Reservoir is formed by two reinforced concrete multiple-arch sections, three 

banks of taintor gates, and a 1,088-foot reinforced concrete spillway section. Dam 

completed and storage began May 20, 1937. Total capacity, 992,000 acre-feet (gage 

height, 1,020.0 feet, top of spillway section). Usable capacity, 955,000 acre-feet 

between gage heights 937.0 feet (sill of powerhouse penstock) and 1,020.0 feet (top 

of spillway section). Water below gage height 937.0 feet can be withdrawn through 

two 5-foot Bunger gates (emergency) down to gage height of 890.0 feet. Figures given 

herein represent total contents. Water used for power development and irrigation 

of rice on several districts below Columbus. 

Cooperation.- Records of daily gage height and capacity table furnished by Lower Colorado 

River Authority. 

Monthly gage height and contents, water year October 1947 to September 1948 

Change in contents 

Date (acre-feet) Gatefetelfht Contents during month 

(acre-feet) 

Sept.30 1,007.0 716,000 - Oct. 31 1,004.8 674,200 -41,800 

Nov. 30 1,001.8 619,400 -54,800 Dec. 31 1,001.3 610,400 -9,000 

Calendar year 1947 - - -9,000 

Jan. 31 999.3 575,100 -35,300 Feb. 29 997.4 543,400 -31,700 

Mar. 31 996.0 521,000 -22,400 

Apr. 30 994.1 490,600 -30,400 

May 31 997.0 537,000 +46,400 June 30 996.8 533,800 -3,200 July 31 1,008.7 749,000 +215,200 

Aug. 31 1,007.3 721,700 -27,300 Sept.30 1,005.8 693,200 -28,500 

Water year 1947-48 - - -22,800 

t Average of 11 p.m. and 1 a.m. readings. 

Marshall Ford Reservoir near Austin, Tex. 

Location.- Bailey indicator gage, lat. 30°23,20", long. 97°54,35", in powerhouse at dam 

on Colorado River, 7.3 miles downstream from Sandy Creek and 12 miles northwest of 

Austin, Travis County. Datum of gage is 0.12 foot above mean sea level, datum of 1929 

(levels by Bureau of Reclamation). 

Drainage area.- 37,900 square miles, of which 11,900 square miles (revised) is probably 

noncontributing. 

Records available.- September 1940 to September 1948. 

Extremes.- Maximum contents observed during year, 698,100 acre-feet July 10, 11 (gage 

height, 650.6 feet); minimum observed, 497,900 acre-feet June 23 (gage height, 632.8 

feet). 

1940-48: Maximum contents observed, 1,377,000 acre-feet Oct. 23, 1942 (gage height, 

691.2 feet); minimum observed, that of June 23, 1948. 

Remarks.- Reservoir is formed by concrete gravity-type dam. Storage began Sept. 9, 1940; 

-347completed early in 1942. Total capacity, 1,950,000 acre-feet (gage height, 714.0 

feet, top of spillway). Capacity between gage heights 681.0 (revised) and 714.0 feet 

is 778,000 acre-feet (revised), and is reserved for flood control. Usable capacity, 

1,144,000 acre-feet (revised) between gage heights 535.8 feet (bottom of 24 8f-foot 

diameter Paradox gates) and 681.0 feet, revised, (maximum power pool). Bottom of penstocks, gage height 552.0 feet. Figures given herein represent total contents. Water 

used for power development and for irrigation of rice in several districts below 

Columbus. 

Cooperation.- Records of daily gage heights and capacity curve furnished by Lower Colorado 

-River Authority. Monthly gage height and contents, water year October 1947 to September 1948 

Change in contents OaneT.et jlht Contents Date (acre feet) during month 

(acre feet) 

Sept.30 639.2 564,000 - Oct. 31 638.8 559,700 -4,300 Nov. 30 638.8 559,700 0 Dec. 31 638.8 559,700 0 

Calendar year 1947 --295,000 -

Jan. 31 637.4 545,300 -14,400 Feb. 29 637.6 547,400 +2,100 Mar. 31 637.8 549,400 +2,000 Apr. 30 639.4 566,200 +16,800 May 31 638.1 552,500 -13,700 June 30 647.1 656,500 +104,000 July 31 648.2 669,500 +13,000 Aug. 31 643.6 615,200 -54,300 Sept.30 642.9 606,900 -8,300 

Water year 1947-48 - - +42,900 

t Average of 11 p.m. and 1 a.m. readings. 
		

						

				

134 COLORADO RIVER BASIN 

Colorado River at Austin, Tex. 

Location.- Water-stage recorder, lat. 30°14'40", long. 97°41'20", at southeast edge of 

Austin, Travis County, at Montopolis Bridge on U. S. Highway 290, 2.8 miles upstream 

from Walnut-Creek, 3.8 miles downstream from Waller Creek, and 5 miles downstream 

from Barton Creek. Datum of gage is 407.3 feet above mean sea level, datum of 1929. 

Drainage area.- 38,160 square miles, of which 11,900 square miles (revised) is probably 

noncontributing. 

Records available.- February 1898 to September 1948. U. S. Weather Bureau has collected 

gage-height records in this vicinity since 1903. 

Average discharge.- 50 years, 2,666 second-feet. 

Extremes.- Maximum discharge during year, 4,060 second-feet Aug. 11 (gage height, 6.55 

feet); minimum daily, 332 second-feet Feb. 15. 

1898-1948: Maximum discharge, 481,000 second-feet June 15, 1935 (gage height, 45.0 

feet, present site and datum, from floodmark); minimum, 13 second-feet Aug. 18, 1918. 

Maximum stage known, 46.0 feet July 7, 1869, present site and datum (adjusted to 

present site on basis of record for flood of June 15, 1935), datermined from information conceiving stage at former site furnished by Prof. T. U. Taylor. 

Remarks.- Records fair. Flow partly regulated by Buchanan and Marshall Ford Reservoirs 

see preceding page), and smaller reservoirs having a combined capacity of 3,150,000 

acre-feet (revised). About 36,000 acres irrigated above station. Record of chemical 

analyses and water temperatures for water year 1948 are given in Water-Supply Paper 

1133. 

Revisions (water years).- W 528: 1900(M). 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. 

E§

M'Mgt &.gstgt g,V4V3

Nov. Dec. Jan. Feb. Mar. Apr. may June July Aug. Sept. EFg HEH MH§ ..... NNN N ...N ......rN rrN ,ww N,,N w N ,,, =W.

=tt=827X1 fit-TtA t21

1

22,5=g; 000000 00000 00000 00000 00000 00000 

NNW ,

"-

2 "w JQ1 01 Jr ""

"

C e w ". ( 3gn 8g0,,,,, ON ..mom Rt 42,82g 0,, 9 m0000 

2,160 

2,070 

1,870 

1,190 916 

g670 

1,390 

2,310 

1,600 

g712 

g712 

g670 

g690 

866 

801 

712 

963 

938 

945 1,340 

1,640 

2,080 

2,080 

1,690 965 

780 

858 

758 

712 

690 

1 629 806 586 388 948 1,040 1,840 1,040 854 487 1,790 1,130 2 1,730 962 1,200 3 1,184 444 1,450 1,880 1,100 2,000 1,400 1,780 

1,230 1,810 1,180 1,830 1,100 2,320 

1,770 839 4 831 1,220 487 1,320 1,360

5 706 1,010 532 2,070 2,260

6 800 1,160 773 1,850 1,010 7 1,390 8 1,570 9 1,250 

1,010 1,660 925 710 982 1,460 372 740 1,200 1,590 974 1,040 1,100 2,640

10 1,110 1,250 604 2,250 1,870 1,330 2,270

782 1,380 460 3,000 1,470 1,210 1,140 1,920 1,040 870 1,340 528 660 838 1,600 396 640 942 1,330 332 670 

953 2,050 514 1,170 948 607 591 1,470 

1,750 1,980 885 1,710 885 1,720 1,340 1,760 

1,200 1,850 

1,040 2,030 1,460 2,560 1,280 2,510 1,190 1,740 1,070 1,470 

1,440 1,910 1,360 1,830 1,380 2,020 1,840 1,730 2,000 1,890 

11 

12 615

13 920

14 1,580

15 1,700 

16 1,900

rr ,N N,N,

17 2,090 18 1,190 830 404 738 1,490 

19 748 941 840 595 1,200 724 803 1,380 690 773 

657 568 541 740 792 724 380 784 1,090 1,390 444 740 

20 

21 1,490

1,280 

1,310 22 

23 

24 1,840 642 781 845 720

25 939 514 466 809 773

26 748 568 1,310 1,470 839 1,540 1,480

27 699 633 1,040 1,220 740 858 1,570 

28 685 769 932 514 660 1,110 1,890 

29 1,340 737 550 586 730 1,380 1,890 

30 1,080 1,150 496 761 1,390 1,830 

31 1,090 1,420 396 - 1,410 1,900 -

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 35,206 2,090 615 1,136 69,830 November 34,515 2,240 636 1,150 68,460 December 29,363 1,420 514 947 58,240 

Calendar year 1947 635,678 3,740 514 1,742 1,261,000 

January 28,427 2,050 '396 917 56,380 

February 29,762 3,000 332 1,026 59,030 March 31,219 2,260 640 1,007 61,920 April 31,677 2,180 595 1,056 62,830 

May 40,428 2,000 858 1,304 80,190 

June 57,530 2,640 1,470 1,918 114,100 July 65,860 3,160 1,300 2,125 130,600 August 63,110 3,540 1,320 2,036 125,200 September 35,778 2,310 670 1,193 70,960 

Water year 1947-48 482,875 3,540 332 1,319 957,700 

g Computed from graph based on gage readings. 

Note.- Discharge computed on basis of partly estimated gage-height record Oct. 4, 10, 11, 13, 18, 

197-15TE. 24, Dec. 30 to Jan. 6, Jan. 9-11, 13, 14, Jan. 17 to Feb. 1, Feb. 3-10, 12, 13, 15-19, 21-

25, Mar. 1, 2, Apr. 28, May 12-18, Sept. 6, 10-13. 
		

COLORADO RIVER BASIN 135 

Colorado River at Smithville, Tex. 

Location.- Water-stage recorder, lat. 30°01', long. 97°10', 1,200 feet upstream from 

bridge on State Highway 71 at Smithville, Bastrop County, and 3.7 miles downstream 

from Alum Creek. Datum of gage is 270.14 feet above mean sea level, datum of 1929. 

Drainage area.- 39,650 square miles, of which 11,900 square miles (revised) is probably 

noncontributing. 

Records available.- July 1930 to September 1948. U. S. Weather Bureau has collected 

gage-height records in this vicinity since 1920. 

Average discharge.- 18 years, 3,254 second-feet. 

Extremes.- Maximum discharge during year, 3,620 second-feet Aug. 13 (gage height, 6.34 

feet); minimum, 675 second-feet Oct. 30. 

1930-48: Maximum discharge, 305,000 second-feet June 16, 1935 (gage height, 42.5 

feet, from floodmarks), by slope-area method; minimum, 76 second-feet Nov. 2, 1934. 

Maximum stage known, about 47.4 feet Dec. 4, 1913, from information by local resi- dents. 

Remarks.- Records good. Many diversions above station for irrigation and municipal 

supp y. Regulation same as that for Colorado River at Austin. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. WW r W WN IV W WWW W 2?:,;b E)'1cm ig".7."°2T 0... omm.o .00mm m0000 m0000 oo,mo. UK§ H§Ei §5ni r rrrr r rr r rrr. EHA rr .Wicn EigH (i'MTE WWWWNW WWW WW WWW WW.....WW WWW WWWWW fiTa 

KJFH 'acaj FiHH (cara 

vrrrr rrrrr rN O J J 

00000 

m0.mt000 gTg8tl ="6"g 00000 00000 00000 00000

MAE HEFA

ME2EWE EK 2""228 mm NIDO m 

N rlr-1rtir1ri vi rq r4 WNWW r1NN N NNWNNNO;.7 N N N (V M N 

1 808 1,120 868 1,140 2 808 1,010 852 1,290 3 838 838 860 876 4 1,060 830 1,030 815 5 1,290 725 1,280 778 

6 958 1,000 1,290 770 

2,550 1,63( 2,000 1,86( 1,800 1,93( 1,930 1,86( 1,930 1,73(

2,000 1,32( 7 830 976 1,230 845 1,930 1,11( 8 1,010 1,570 1,160 1,030 2,000 96i 9 1,580 1,100 994 1,470 10 1,580 916 908 1,400 

11 1,420 822 1,070 1,380 12 1,280 924 1,180 900 13 932 924 1,290 830 14 800 1,120 1,110 1,290 15 1,290 1,740 958 1,360 

16 1,630 1,320 994 1,540 17 1,740 985 985 1,550 

2,000 1,42( 1,860 2,07(

2,000 1,44( 2,930 991 3,480 88( 3,340 821 2,800 821 

1,930 90E 1,800 931 2,000 881 2,150 1,021 2,150 1,051 

2,150 99C 2,240 1,26C 2,070 1,50C 1,660 1,80C 2,000 1,73C 

1,930 1,571 1,660 1,11C 1,800 906 1,660 906 1,570 88C 1,380 

18 1,970 1,110 1,000 1,540 19 1,960 2,030 985 940 20 1,070 2,030 924 868 

21 830 2,150 985 1,220 876 2,330 860 2,090 22 1,240 23 1,530 808 932 24 1,170 1,600 908 1,100 25 1,580 976 1,070 1,300 

26 1,470 1,230 815 1,020 27 924 1,220 762 937 28 770 976 792 1,270 29 710 892 892 1,300 30 748 908 822 1,060 31 1,210 - 976 916 

Month Secondfoot-days Maximum Minimum Mean Runoff in 

acre-feet 

October 

November 

December 

36,672 

37,462 

30,658 

1,970 

2,330 

1,290 

710 

725 

762 

1,183 

1,249 989 

72,740 

74,300 

60,810 _ - Calendar year 1947 766,802 15,300 710 2,101 1,521,000 - January 

February 

March 

April

May 

June 

July

August

September 

34,907 

37,265 

30,574 

30,453 

41,450 

55,360 

65,680 

64,700 

38,301 

1,550 

2,400 

1,660 

1,630 

2,070 

2,340 

3,060 

3,480 

2,070 

770 

822 

762 

745 1,050 

1,380 

1,660 

1,380 825 

1,126 

1,285 986 1,015 

1,337 

1,845 

2,119 

2,087 

1,277 

69,240 

73,910 

60,640 

60,400 

82,210 

109,800 

130,300 

128,300 

75,970 

Water year 1947-48 503,482 3,480 710 1,376 998,600 

905771 0 - 50 - 10 
136 COLORADO RIVER BASIN 

Colorado River at La Grange, Tex. 

Location.- Wire-weight gage, lat. 29°53'45", long. 96°52'15", at bridge on U. S. Highway 

77 in La Grange, Fayette County, 1.2 miles d6wnstream from Buckner Creek. Datum of 

gage is 211.23 feet above mean sea level, datum of 1929. 

Drainage area.- 40,200 square miles, of which 11,900 square miles (revised) is probably 

noncontributing. 

Records available.- July and August 1938 (flood discharge measurements only), November 

1936 to September 1948. 

Extremes.- Maximum discharge during year, 4,130 second-feet May 27 (gage height, 4.50 feet, 

from graph based on gage readings); minimum, 790 second-feet Oct. 30-31 (gage height, 

1.14 feet, from graph based on gage readings). 

1938-48: Maximum discharge observed, 200,000 second-feet July 27, 1938 (gage height, 

42.95 feet); minimum observed, 430 second-feet Mar. 7, 1940. 

Maximum stage known, about 56.7 feet probably July 9, 1869 (from marble high-water 

marker in La Grange). Data on other flood as follows: Dec. 5, 1913, stage 56.4 feet, 

from floodmarks; June 17, 1935, stage 50.84 feet, from floodmarks (discharge, /55.000 

second-feet, from rating curve extended as a straight line above 200,000 second-feet). 

Remarks.- Records good. Gage read twice daily. Diversions above station for irrigation 

and municipal supply. Regulation same as that for Colorado River at Austin. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. ONtiMA

D22 rU)) H U 4 :W§H§§ 22222 

"82 .gviNcs, 

00000 

aac HH

i2HE)HHIcn

;§gH, i E FA 

2,200 

1,980 

1,780 

1,730 

1,830 

1,780 

1,580 

1,680 

1,780 

1,780 

1,780 

1,780 

1,730 

1,680 

1,830 

2,300 

2,750 

2,750 

2,250 

1,980 

1,780 

2,030 

2,200 

2,250 

2,300 

2,140 

1,780 

1,830 

2,250 

2,750 

3,05C 

00000 00000 0000

00000000000000000 

.NVIOOKI NNNN .-1 

1,480 

1,830 

2,E00 

2,200 

1,930 

1,880 

1,310 

1,070 

1,110 

1,930 

2,420 

1,530 

1,030 928 

868 

840 

960 

960 

895 1,030 

1,070 995 1,420 

1,880 

2,250 

2,030 

1,730 

1,230 960 

960 

1 840 1,270 960 1,150 1,030 1,150 895 

2 840 1,230 928 1,270 960 960 1,030

3 840 1,070 928 1,270 960 995 1,230

4 868 928 995 960 1,290 1,190 1,030 5 1,070 895 1,230 895 1,780 1,070 895 

6 

7 

1,230 928 868 1,150 1,270 

1,230 895 

895 1,630 

1,830 1,110 1,670 868 868 

8 

9 868 1,030 1,150 1,480 1,270 1,230 960 1,220 1,980 

1,880 1,570 

1,110 960 1,310 

10 1,480 1,190 1,070 1,480 1,190 995 1,530 

11 1,580 995 1,030 1,440 1,070 1,070 1,400 

12 1,310 995 1,150 1,290 1,240 1,350 1,190 

13 1,150 1,070 1,400 928 2,520 1,480 928 

14 928 1,030 1,400 1,000 2,250 1,350 868 

15 868 1,490 1,400 1,350 1,520 1,070 995 

16 1,350 1,680 1,190 1,480 1,110 960 995 17 1,580 1,400 1;070 1,350 995 960 895 18 1,780 1,110 1,070 1,780 928 960 960 

19 1,980 1,780 1,070 1,500 1,070 1,190 995 

20 1,680 2,030 1,030 995 995 1,230 840 

21 1,070 1,980 995 960 1,270 1,310 840 

22 895 2,300 1,070 1,310 1,440 1,070 a1,050 

23 1,060 2,420 960 1,230 1,310 928 1,230

24 1,440 2,030 895 1,030 1,070 895 1,190 25 1,350 1,620 960 1,270 995 895 1,270

26 1,680 1,030 1,070 1,400 1,110 895 1,310 

27 1,350 1,230 895 1,310 1,270 895 1.230 28 960 1,230 868 1,440 1,880 928 995 

29 868 995 928 1,400 1,530 895 960 30 815 960 1,030 1,480 - 868 960

31 895 - 995 1,150 968 - -

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 000 10 

36,583 815 1,180 72,560 868 1,354 80,540 868 1,083 66,620 

815 2,297 1,663,000 

October 

November 40,606 

December 33,587 

Calendar year 1947 838,479 -

000000000 

895 1,229 75,550 928 1,383 79,540 868 1,093 67,210 840 1,057 62,910 1,110 1,626 99,970 1,230 1,879 111,800 

January 38,088 

February 40,103

March 33,887

April 31,717

May 50,400

June 56,370

July 63,310 1,580 2,042 125,600

August 68,020 1,680 2,194 134,900

September 42,926 840 1,431 85,140

Water year 1947-48 535,597 4,010 815 1,463 1,062,000 

a No gage-height record; discharge computed on basis of estimated gage heights. 
COLORADO RIVER BASIN 137 

Colorado River at Columbus, Tex. 

Location.- Water-stage recorder, lat. 29*42'20", long. 96°32,05", at bridge on U. S. Highway 9U at eastern edge of Columbus, Colorado County, 340 feet downstream from Texas & 

New Orleans Railroad bridge and 2.6 miles downstream from Cummins Creek. Datum of gage 

is 155.52 feet above mean sea level, datum of 1929. 

Drainage area.- 40,840 square miles, of which 11,900 square miles (revised) is probably 

noncontributing. 

Records available.- January to December 1903 (gage heights and discharge measurements only), 

January 1904 to December 1911, May 1916 to November 1930, May 1939 to September 1948. 

September 1930 to June 1939 at site near Eagle Lake, 23 miles downstream. U. S. Weather 

Bureau has collected gage-height records in this.vicinity since 1903. 

Average discharge.- 30 years (1904-11, 1916-30, 1939-48), 3,267 second-feet. 

F,xtremes.- Maximum discharge during year, 10,200 second-feet May 26 (gage height, 9.94 

feet); minimum, 756 second-feet Dec. 29. 

1903-11, 1916-30, 1939-48: Maximum discharge, 152,000 second-feet July 1, 1940 

(gage height, 36.2 feet); minimum observed, about 80 second-feet Sept. 9, 10, 1910. 

Maximum stage known, 41.6 feet, present datum, in July 1869 and on Dec. 6, 1913, 

from information by local resident. River divided each time and left Columbus on an 

island. Data on other floods as follows: June 18, 1935, observed stage, 38.5 feet, 

present datum, furnished by U. S. Weather Bureau (discharge, 190,000 second-feet, computed on basis of records for station near Eagle Lake, 23 miles downstream); July 29, 

1938, observed stage, 38.4 feet, present datum, furnished by U. S. Weather Bureau (discharge, 175,000 second-feet, computed on basis of records for station near Eagle Lake). 

Remarks.- Records good. Diversions above station for irrigation and municipal supply. 

Regulation same as that for Colorado River at Austin. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

rrrr rrrvr r rrrrrrr "M

EMaiEHEi§gMMgc

gWai 

rrrr 

r- MinigiM t'tff§ lAffg

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

18 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

minNoW0 WO Q 00.00 OQQQ Q 00Q0 0900,0 

=g 82

W012 2'422g

;2Zi-= 

_z_7„4; 

F,1-,F,F,.,M3NI MIN Fal.-.01,,-, F,O., I,1.+1-,., ,I-,1., 

27 

ii iti§ HriiitIM t01 fi fii

, O

OO tri 

[ 

912 

912 

898 

944 1,330 

1,510 

1,330 

1,330 

1,380 

1,120 

976 

984 1,560 

1,600 

2,650 

1,800 

1,200 

1,080 

1,030 

1,040 

992 

936 

968 

860 

815 

936 1,000 808 

756 

785 

898 

NOOO

N—00 , 

0

000

-

00000 

ggAgil hhE EH EH 

890 

928 1,080 

1,240 

1,080 

960 

890 

882 

976 1,420 

1,700 

1,420 

1,240 

1,020 920 

1,160 

1,080 890 

960 1,000 

808 

763 

905 1,200 

1,290 

1,380 

1,330 

1,240 952 

936 

8S2 p228 28882 2288 883.!4: M r,.r. NOm toW ncoNnOrto rm 

..... N N .-1 ,1 4-1 N0000 

00000 00000 

00000 

00000 000000 

g=t2'

422n.° 2 22,S gg

=2,T S8g' 

-7-74c.744,:„7„;.4 

2,800 2,990 1,650 2,280 2,720 1,460 2,110 2,380 1,850 1,850 1,850 2,160 1,800 1,750 2,160 

1,850 1,850 2,060 1,750 1,900 1,850 1,560 1,900 1s,420 1,750 1,850 1,290 1,750 1,900 1,160 

1,750 1,850 1,800 1,800 1,800 2,220 1,850 2,220 1,460 1,750 3,230 1,120 1,650 3,470 968 

1,750 3,230 905 2,280 2,600 875 2,600 1,950 984 2,600 1,900 1,020 2,330 2,160 912 

1,950 2,380 1,080 1,750 2,330 1,080 2,060 2,380 1,010 2,220 2,380 1,460 2,160 2,110 1,850 

2,220 1,950 2,110 2,060 2,380 1,900 1,700 2,000 1,600 1,850 1,800 1,160 2,330 1,850 1,000 - 2,770 1,750

Month Secondfoot-days Maximum Minimum Mean Runoff in 

acre-feet 

October 37,815 2,160 815 1,220 75,000 November 42,195 3,230 815 1,406 83,690 December 35,340 2,650 756 1,140 70,100 

Calendar year 1947 892,164 -

18,400 756 2,444 1,769,000 - - - - - January 

February 

March 

35,463 

43,222 

36,524 

1,750 

2,600 

1,750 

763 

928 

928 

1,144 

1,490 

1,178 

70,340 

85,730 

72,440 

April 

May 

June 

32,540 

59,242 

56,060 

1,700 

6,880 

2,680 

763 

952 1,380 

1,085 

1,911 

1,869 

64,540 

117,500 

111,200 July 

August 

September 

62,930 

68,810 

43,574 

2,800 

3,470 

2,220 

1,560 

1,750 875 

2,030 

2,220 

1,452 

124,800 

136,500 

86,430 

Water year 1947-48 553,715 6,880 756 1,513 1,098,000 
,

138 COLORADO RIVER BASIN 

Colorado River at Wharton, Tex. 

Location.- Wire-weight gage, lat. 29°18.30", long. 96°06.15", at bridge on U. S. Highway 59 

in Wharton, Wharton County, 1,000 feet downstream from Texas & New Orleans Railroad 

bridge and 12 miles upstream from Jones Creek. Datum of gage is 65.42 feet above mean 

sea level, datum of 1929. 

Drainage area.- 41,150 square miles, of which 11,900 square miles (revised) Is probably 

noncontributing. 

Records available.- July 1916 to September 1925, July and August 1938 (flood discharge 

measurements only), October 1938 to September 1948. June to November 1901, May to September, 1902, daily records published in U. S. Department of Agriculture, Office of 

Experiment Stations, Bulletin Nos. 119 and 133. U. S. Weather Bureau has collected 

gage-height records in this vicinity since 1935. 

Average discharge.- 15 years (1919-21, 1922-25, 1938-48), 3,408 second-feet. 

Extremes.- Maximum discharge during year, 7,800 second-feet May 27 (gage height, 8.40 feet, 

-From graph based on gage readings); minimum observed, 484 second-feet June 4. 

1919-25, 1938-48: Maximum discharge observed, 100,000 second-feet July 3, 1940 (gage 

height, 35.99 feet); no flow Aug. 6, 1925 (result of pumping). 

Maximum stage known, 38.9 feet, present datum, Dec. 8, 1913, from information by local residents; below Wharton floodwater combined with floodwater of Brazos River. Flood 

of about July 12, 1869, reached about same height. Flood of June 20, 1935, reached a 

stage of 38.2 feet, present datum (discharge, 159,000 second-feet, from rating curve 

extended above 145,000 second-feet), furnished by U. S. Weather Bureau. Flood of July 

30, 1938, reached a stage of 37.4 feet, present datum, observed by Geological Survey 

engineers (discharge, 145,000 second-feet). 

Remarks.- Records good. Gage read twice daily. Diversions above station for irrigation 

and municipal supply. Regulation same as that for Colorado River at Austin. Records of 

chemical analyses and water temperatures for the water year 1948 are given in. WaterSupply Paper 1133. 

Cooperation.- Gage-height record collected in cooperation with U. S. Weather Bo.rea,. 

Discharge, in second-feet, water year October1947 to September 1948 

Day Oct. Nov. Dec. . Jan. Feb. Mar. Apr. May June July Aug. Sept. 

13 . W8H 8888 °, 88S° 

22.7.2

2g2.7,82 22:),,SSpmFHRF

.mku -0.--

00 00 00 

g

? '''WN ' 0 00 0 000 "8"' 00 2220800 

,- NOVM ON 47.17) 

1,400 970 

790 

790 1,180 

1,180 

1,180 

1,080 820 

820 

1,220 

1,400 

2,100 

1,630 

1,180 

970 

778 

719 

686 

820 

642 

590 

719 

642 

697 

1,080 

1,590 

1,740 

1,330 

1,330 

1,740 970 910 1,000 1,140 2,100 940 790 626 2,100 1,630 910 940 535 1,480 1,290 940 1,080 502 1,820 1,180 1,220 1,140 575 1,630 

1,330 1,140 1,000 605 1,400 1,290 1,000 1,000 595 1,370 2,020 880 1,180 664 1,260 

1,000 970 1,080 

1,080 

1,110 

1,290 

1,370 

1,140 

1,080 

1,040 

1,000 

1,000 

1,180 

1,520 

1,630 

1,480 

1,180 

1 

2 940 910 3 940 1,140 4 940 1,180

5 1,000 1,110 

6 1,000 1,000 7 1,140 910 8 1,260 850 9 1,080 1,000 1,900 880 1,080 790 1,080 10 940 1,040 a1,520 880 1,220 714 970

11 970 1,440 a1,260 1,110 910 692 1,400 81,140 1,700 970 820 1,080 a1,180 1,440 970 1,220 970 81,480 1,260 940 1,290 1,000 1,480 1,140 1,180 1,220 910. 

12 1,370 1,220 13 1,440 1,080 14 1,400 1,040 15 1,330 1,000 

16 1,110 1,080 17 970 1,320 18 1,140 2,100 

1,110 1,480 910 1,180 1,000 820 1,480 1,260 1,040 748 850 820 1,560 1,110 1,080 550 778 1,080 19 1,630 2,840 1,700 1,000 820 790 748 1,440 1,700 1,480 1,040 692 820 784 1,630 

1,140 664 670 970 1,480 1,260 642 742 1,220 970 1,330 697 1,040 1,110 790 1,180 540 653 850 880 1,040 658 502 766 1,180 

1,000 1,140 1,130 730 1,220 940 1,370 6,330 736 1,140 940 1,260 5,160 880 1,110 940 1,220 3,910 880 820 

20 2,020 

1,780 

1,400 

a1,260 

a1,140 

a1,140 

a1,370 

a1,260 

a1,140 

a1,370 

21 1,900 1,400

22 1,780 2,020

23 1,290 2,020 24 1,110 2,180 25 1,040 2,180

26 1,400 1,940 27 1,260 1,590

28 1,480 1,220 29 1,480 1,260

1,260 a1,440 940 1,000 2,870 1,000 742 a1,400 970 1,980 - 880 30 1,220 31 1,080 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 38,340 1,900 940 1,237 76,050 

November 41,780 2,840 850 1,393 82,870 

December 41,120 2,520 1,000 1,326 81,560 

Calendar year 1947 841,388 17,700 750 2,0 -"' 17669,000 

January 40,750 2,020 1,000 1,315 80,830 February 48,640 2,520 1,180 1,677 96,480 March 40,110 2,100 940 1,294 79,560 

April 30,143 1,700 540 1,005 59,790 

May 44,385 6,330 502 1,432 88,040 

June 25,150 1,290 502 838 49,880 July 36,612 2,100 742 1,181 72,620 August 37,110 2,020 790 1,197 73,610 September 32,073 2,100 590 1,069 63,620 

Water year 1947-48 456,213 6,330 502 1,246 904,900 

a No gage-height record; discharge computed on basis of estimated gage-height record and record for station at Columbus. 
		

COLORADO RIVER BASIN 139 

Colorado River near Bay City, Tex. 

Location.- Water-stage recorder, lat. 28°58,26", long. 96°00.44", 6,310 feet downstream 

from bridge on State Highway 35, 7,100 feet downstream from Texas & New Orleans Rail- road bridge, 2.8 miles west of Bay City, Matagorda County, and 32.6 miles upstream 

from mouth at Matagorda Bay. Datum of gage is at mean sea level, datum of 1929, 

Houston supplementary adjustment of 1943. 

Drainage area.- 41,420 square miles, of which 11,900 square miles is probably noncontributing. 

Records available.- July 2-6, 1940 (in Water-Supply Paper 1046), April to September 

1948. U. S. Weather Bureau has collected gage-height records in this vicinity since 

1946. Extremes.- Maximum discharge during period, 6,390 second-feet May 28 (gage height, 22.73 

feet); minimum daily, 16 second-feet June 5. 

Flood of July 4, 1940, reached a stage of 48.2 feet, present datum (discharge, 

83,300 second-feet), at State Highway 35 bridge, observed by Corps of Engineers 

(stage, 46.6 feet adjusted to present site). 

Maximum stage known, about 56.1 feet Dec. 10, 1913. Flood of July 1869 probably 

reached about same stage. Data on other floods as follows: May 8, 1922, stage 55.4 

feet; June 1929, stage 55.0 feet; June 22, 1935, stage 54.6 feet; Oct. 5, 1936, stage 

53.4 feet; Aug. 2, 1938, stage 53.4 feet; Nov. 27, 1940, stage 47.6 feet. All above 

flood data from information by Texas & New Orleans Railroad and adjusted to present 

site. Remarks.- Records good. Many diversions above gage for municipal and irrigation uses. 

Regulation same as that for Colorado River at Austin. 

Discharge, in second-feet, water year October1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. may June July Aug. Sept. ....z MEFE Et(F

174 c- COc EaU 

M 

dj EE rt i( F:tni

434 f341 810 844 685 838 1,280 f838 728 1,150 838 582 1,150 865 560 

1,060 528 615 925 301 675 838 316 769 755 275 990 591 251 1,060 

514 247 1,060 564 247 1,360 582 261 1,740 478 237 2,060 452 221 1,580 

1 -

2 -

3 -

4 

5 -

6 -

7 -

8 -

9 -

10 -

11 - 12 - 13 - 14 -

15 -

16 - 361 933 1,180 17 - 297 1,420 925 18 - 290 1,320 738 

19 f603 990 695 20 307 1838 555 591 

21 227 1958 340 568 

22 151 708 1478 447 

23 52 352 1615 f394 

24 72 208 680 1492 

25 211 251 738 434 

780 344 782 550 424 838 1,090 537 1782 1,540 424 1,060 1,460 214 958 1,320 154 810 

26 

27 1,120

28 1,180

29 1,320

30 925

31 -

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 

November 

December 

Calendar year - - . 

January - - February 

March - - - -

I 1 

f-'4 ,%'?-1222 

April 20-30 6,345 1,320 52 577 May 31,282 6,060 44 1,009 June 9,776 1,220 16 326 July 18,580 1,280 154 599 August 19.750 1,420 221 637 September 27,851 2,060 394 928 

The period - - - - 225,300 

a No gage-height record; discharge computed on basis of estimated gage-height record. 

f Computed on basis of partly estimated gage-height record. 

Note.- Discharge Apr. 20 to May 5 computed from graph based on gage readings. 
,

- - - 

140 COLORADO RIVER BASIN 

Bull Creek near Ira, Tex. 

Location.- Water-stage recorder, lat. 32°35', long. 101°05', 267 feet upstream from

T17 road crossing, 1.5 miles upstream from Colorado River, 5.5 miles upstream 

from Chimney Creek, 5.8 miles west of Ira, Scurry County, and 6.9 miles northwest 

of Cuthbert. 

Drainage area.- 388 square miles (contributing area). 

Records available.- October 1947 to September 1948. 

Extremes.- Maximum discharge during year, 4,940 second-feet July 6; maximum gage height, 

11.70 feet July 6 (backwater from Colorado River); no flow at times. 

Flood of Sept. 7, 1932, reached a stage of 22.1 feet, present site and datum 

(adjusted to present site from floodmark 1,100 feet downstream, on basis of slope of 

flood of May 1947 at gage height 15.72 feet). Flood of June 1939 was probably about 

1 foot higher, from information by local resident. 

Remarks.- Records good. No diversions above station. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept: 000000000000000

00000

0000 !.= 

NWO 

0 00 000 0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

61 

10 

1.7 

.6 

.3 

.2 

.1 

.1 

.1

000000 000

rr wWW wW 

. 00000 ..... 0 

0 

W OO MO .11,1MN.-4 

e-o .-1 00 00000 001 ,,On i 22r4

wN M P, NOP, 

00000 0000000000r, 0.002 gt4.4. vs2 

1.4 

.6 

.4 

.3 2,270 

3,840 

1,220 81 

18 

6.0 

2.5 

1.5 

1.0 

.8 

.6 

.5 

.5 

.3 

.2 

.2 

.2 

.2 

2.1 

21 

9.0 

2.2 

1.0 

.5 

.3 

.2 

2.4 

000 00000 00000 o 

1 o

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 

00000 00000 00000 00000 0000n 00 1 

0 0.1 0.1 0 .1 .1 0 85 .1 0 143 .1 0 15 .1 

0 2.8 .1 0 1.4 ' .1 0 .6 0 .3 0 

0 0 .2 0 

0 .2 0 0 .2 0 0 .2 .2 .2 0 

0 

0 

0 

.2 .2

.1 .2 .4 .1 .1 8.2 .1 .1 1.7 .1 0 

0 

0 

0 

0 

0 

0 

.8 .1

.3 .1 .2 .1 .2 .1 .2 .1 .2 .1 

.2 .1 .1 .2 .1 .1 .1 .1 .2 .1 .1 .1 

.5 

.3 

.1-

-

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet

October 13.6 0 0.44 27 November 13.5 0 .45 27 I I I I WN 

II 

Wo ., 1 

December 251.2 .1 8.10 498 _ Calendar year 

. January 1.7 February 1.9 March 1.8 

0 .05 0 .07 0 .06 April 0 0 0 May 1,191.9 0 38.4 2,360 June 5,000.0 July 7,484.9 0 167 9,920 .2 241 14,850 August 

September 58.0 

74.1 0 

0 1.87 

2.47 115 

147 

Water year 1947-48 14,092.6 3,840 0 38.5 27,950 

Peak discharge (base,500 sec.-ft.).- May 16 (4 a.m.) 1,800 sec.-ft.; June 1 (3 p.m.) 3,200 sec. ft.; June 2 (4 p.m.) 2, 330 sec.-ft.; Tilly 5 (6 p.m.) 4,320 sec.-ft.; July 6 (12 m.) 4,940 sec.-ft. a No gage-height record; discharge computed on basis of estimated gage heights. 

3.4 

3.8 

3.6 

0 
COLORADO RIVER BASIN 141 

Morgan Creek near Colorado City, Tex. 

Location.- Water-stage recorder, lat. 32°24., long. 100°56,, at bridge or. U. S. Highway 80, 

about 1 mile upstream from Texas & Pacific Railway bridge, 5 miles west of ColDrado 

City, Mitchell County, 5 miles east of Westbrook, and 5f miles downstream from Cherry 

Creek. Datum of gaga is 2,046.61 feet above mean sea level datum of 1929. Prior to 

Mar. 24, 1948, staff gage at site 227 feet downstream at same datum. 

Drainae area.- 236 square miles (contributing area). 

Records available.- April 1947 to September 1948. 

Extremes.- 1947: Maximum discharge during period April to September, 3,170 second-feet 

May 11 (gage height, 13.94 feet, from floodmarks); no flow at times. 

1947-48: Maximum discharge during water year, 7,910 second-feet July 6 (gage height, 

20.44 feet); no flow at times. 

Maximum stage known since 1932, 24.2 feet June 19 or 20, 1939, from information by 

local resident. 

Remarks.- Records good July 1 to Sept. 30, 1948; others fair except those for Mar. 24 to 

---JURW-30, 1948, which are poor. Staff gage read once or twice daily, oftener during 

high stages. No diversion above station. Records of chemical analysis for the period 

April to September 1947 and the water year 1948 are given in Water-Supply Papers 1102 

and 1133, respectively. 

Discharge, in second-feet, 1947-48 

1947 

Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. Day Oct. Nov. 

0 1 0 2 0 5 0 4 0 5 

0 8 0 7 0 8 .2 9 834 10 

1,920 11 712 12 41 13 14 14 4.5 15 

573 16 293 17 37 18 4.5 19 1.6 20 

1.2 21 1.0 22 .5 23 .4 24 .2 25 

.2 26 .8 27 

28 .3 

.2 29 0 .2 30 - .1 31 

Peak discharge (base, 300 sec.-ft.).- May 11 (6 a.m.) 3,170 aec.-ft.; May 16 (8 p.m.) 1,030sec.-

ft., July 11 (7 a.m.) 435 sec.-ft. 

0 -. 

0000000002 2=16*) 00 00000 00000.

NIA 

00000 0000; 0 00000 00000 00000 00000

00000 00000 000000 00000 00000MN. 

.....

O 00000 00000 0000,N 00 
142 

1 

2 0.7 

.3 

COLORADO RIVER BASIN 

Discharge, in second-feet, of Morgan Creek near Colorado City, Tex., 1947-48--Continued 

1947-48 

Day Oot. Nov. Deo. Jan. Feb. Mar. Apr. May June July Aug. Sept. • 

6,W0000 0000000000000000 N ., 

0 r.JN N WUJ

3 M

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 

N Vt4 !”1 ,0 000000000000000 000!A O00000 

000000000000

00 

00,000 

.

0000000NO0000

0000000000000000 

v"),-4W•-•,-4NO

. . 

00000 00000 00000 00000 00N, OWOlg 

77 0 

21 0 1.4 0 .1 0 .1 684 

0 6,590 0 2,520 0 126 0 18 

.1 

.1 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

86 

19 

1.0 

.4 

.2 

.1 

0 

0 

0 

0.6 

.5 0 

0 

c". 00 00 00000 00000 00000 

0 0 0000 00000 00000 

00 0000 

1.4 .4 395 .2 67 .2 

8.4 .2 1.4 .2 

.1 

.1 

.1 

.1 

.1 

.1 

.1 

1.3 

.6 

.4 

.3 

.2 

.2 

.1 

.1 

.2 

.1 

.1 

.1 

.1 

.1 

.1 

0 

0 

0 

0 

0 

0 

0 

0 5.5 

.9 2.4 .2 1.0 3.6 .7 .9 .5 0 

0 

0 

0 

.1 .5 

0 .4 0 .3 0 .3 0 .2 0 .2 

.7 .2 .3 5.8 

.1 

.1 

.1 

.1 

0 0 31 0 

0 

0 

0 

0 

0 

0 

0 

0 62 0 4.5 

0 .7 0 3.1 0 21 0 1.8 30 0 0 . .5 31 0 - .3 -

Peak discharge (base, 300 sec.-ft.).- Oct. 25 (9 a.m.) 1,170 sec.-ft.; Dec. 4 (9 a.m.) d70 sec.- ft.; Feb. 26 (10 p.m.) 1,570 sec.-ft.; July 6 (12:30 p.m.) 7,910 sec.-ft.; Aug. 1 (6 a.m.) 481 

sec.-ft. Note.- No gage-height record Jan. 3-22, 24-27, Feb. 1, 2, 12, 13, Mar. 8, 10, 12, 14, 17, 22, 

AUg7-113; discharge interpolated except for Aug. 1-3, which was computed from graph based on flood- mark and 1 wire-weight gage reading. 

Monthly discharge, In second-feet, 1947-48 

Month Secondfoot-days Maximum Minimum Mean Runoff in 

acre-feet 

May 1947 June 

July

August

September 

4,439.9 24.2 

168.8 2.7 136.2 

1,920 20 

142 2.2 

52 

0 

0 , 0 

0 

0 

.143 .81 

5.45 

.09 

4.54 

8,810 48 

335 5.4 270 

The period - - - - 9,470 

October 1947 720.4 435 

000000000 000 I 

23.2 1,430 4.06 241 15.4 947 

November 121.7 57 December 477.2 395 

Calendar year - - -

January 1948 1.0 .1 February .03 2.0 28.3 1,630 .11 6.7 .27 16 1.60 98 3.54 211 325 20,000 7.45 458 3.60 214 

821.6 511 March 3.4 .6 8.2 8.1 April 

May 49.6 25 106.3 77 June 

July 

August 10,080.9 6,590 231.0 181 107.9 86 September 

Water year 1947-48 12,729.2 6,590 0 34.8 25,250 
- - - - - - - - 

COLORADO RIVER BASIN 143 

Champlin Creek near Colorado City, Tex. 

Location.- Staff gage, lat. 32°19', long. 100°49.. 600 feet d9wnstream from South Fork, 

5 miles southeast of Colorado City, Mitchell County, and 5f miles upstream from mouth. 

Drainage area.- 158 square miles. 

Records available.- October 1947 to September 1948. 

Extremes.- Maximum discharge during year, 10,200 second-feet Oct. 25 (gage height, 10.40 

feet, from floodmarks), from rating curve extended above 2,400 second-feet on basis of 

slope-area determinations at gage heights, 10.40 and 8.88 feet; minimum cbserved, 0.2 

second-foot at times. 

Maximum stage known since 1898, about 18.5 feet July 7 or 8, 1945, from floodmarks 

on left bank opposite gage. 

Remarks.- Records good. Gage read twice daily, oftener during high stages. No diversion 

above station. 

Rating table, water year 1947-48 (gage height, in feet, and discharge, in second-feet) 

0.50 0 0.80 8.5 1.4 86 2.8 595 .60 .2 .85 12 1.6 130 3.2 830 .65 .6 .90 17 1.8 180 4.0 1,420 .70 2.0 1.0 27 2.0 241 5.0 2,340 .75 4.6 1.2 53 2.4 395 6.0 3,440 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 

2 

3 

4 

5 

6 

7 

a 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

N .1.1--in(s..cnncs c ...(s!--. N N(• -1 r .-40rN 

6W ,VN,r4 M 

° 

M 

0.9 0.5 1.4 2.0 .3.0 2.0 0.9 ,120 0.2 6.4 0.4 1.2 .5 1.4 1.4 2.0 2.0 .6 19 .2 .4 .4 .9 12 1.4 1.4 1.7 2.0 .5 6.9 .2 .2 .4 .5 19 1.4 1.4 1.7 2.0 .3 3.0 .2 .2 .3 d.5 5.8 1.4 1.7 1.7 2.0 .2 1.7 425 .2 .2 

d.5 2.0 1.4 1.4 1.4 2.0 .2 1.4 455 .2 .2 .5 2.0 1.4 1.4 1.4. 2.0 .4 1.4 110 .2 .2 .5 1.4 1.4 1.4 1.4 2.0 .4 1.2 28 .2 .2 .5 1.2 1.4 1.4 1.4 2.0 .4 .6 2.0 .2 .2 .5 .9 1.4 1.4 1.4 2.0 .4 .5 1.4 .2 .2 

.5 .9 1.4 1.4 b1.7 2.0 .4 .5 4.6 .2 .2 

.5 .9 1.4 b1.6 2.0 2.0 .4 .5 1.2 .2 .2 .9 .5 1.4 1.7 2.0 2.0 .3 .4 .6 .2 .2 .6 .5 1.4 1.4 2.0 2.0 .3 .4 .4 .2 .2 .5 .9 1.4 1.4 1.7 2.0 .2 .4 .3 .2 .2 

.5 .9 1.4 1.4 1.4 2.0 .2 .4 .3 .2 .2 2.5 .5 1.4 1.4 1.4 2.0 .2 .4 .3 .2 .2 3.6 .5 1.4 1.4 1.4 1.7 .2 .4 .2 .2 .2 1.4 .5 1.4 1.4 2.0 1.4 .2 .4 .2 .2 .2 .9 .5 1.4 1.4 2.6 1.4 .2 .4 .2 .2 .2 

.9 .5 1.4 1.4 123 1.4 .2 .4 .2 .2 18 22 .9 .5 1.4 1.4 11 1.4 .2 .3 .2 .2 1.4 23 .9 .5 •1.4 1.4 3.6 1.4 .2 .2 253 .2 .2 24 

25 

26 

27 

28 

29 

30 

31 

.9 .5 1.4 1.4 2.0 1.4 403 .2 37 .2 .2 .9 .6 1.4 2.0 2.0 1.4 314 .2 a2.0 .2 .2 

.9 .6 1.4 108 2.0 1.4 10 .2 18 .2 .2 .9 .9 b1.5 *274 2.0 1.4 2.5 .2 6.6 .2 .2 .6 1.2 b1.6 *10 2.0 1.2 1.4 .2 9.1 .2 .2 .6 1.2 b1.8 4.1 2.0 1.2 191 .2 1.4 18 .2 .5 1.2 b1.9 - 2.0 .9 1,510 .2 .3 17 .2 1.4 2.0 - 2.0 17 .3 1.7 -

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 3,437.7 3,380 0.2 111 6,820 November 26.4 3.6 .5 .88 52 December 61.0 19 .5 1.97 121 

Calendar year - - -

January 45.2 2.0 1.4 1.46 90 February 433.1 274 1.4 14.9 859 March 188.9 123 1.4 6.09 375 April 51.6 2.0 .9 1.72 102 May 2,456.4 1,510 .2 79.2 4,870 June 1,162.2 1,120 .2 38.7 2,310 July 1,358.6 455 .2 43.8 2,690 August 48.7 18 .2 1.57 97 September 25.7 18 .2 .86 51 

Water year 1947-48 9,295.5 3,380 .Z 25.4 18,440 

Peak dischargem basal 2j000 sec.-ft.).- Oct. 25 (10:30 a.m.) 10,200 sec.-ft.; May 24 (4:00 a.m.) 2,140 sec.-ft.; ay 36 (7.00 a.m.) 7,560 sec.-ft.; June 1 (7:00 a.m.) 7,400 sec.-ft.; July 5 (11:00 

p.m.) 2,340 sec.-ft. •Winter discharge measurement made on this day. a No gage-height record; discharge computed on basis of weather records and estimated gage height. 

b Stage-discharge relation affected by ice. 

d Doubtful gage-height record; discharge computed on basis of discharge measurement of Nov. 4 and weather records. 
144 COLORADO RIVER BASIN 

Elm Creek at Ballinger, Tex. 

Location.- Water-stage recorder upstream from spillway 9f masonry dam, lat. 31°45,00", 

long. 99°56t50", in Ballinger, Runnels County, and lt miles upstream from mouth. 

Datum of gage is 1,617.72 feet above mean sea level, datum of 1929. 

Drainage area.- 458 square miles. 

Records available.- April 1932 to September 1948. 

Average discharge.- 16 years, 52.5 second-feet. 

Extremes.- Maximum discharge during year, 4,330 second-feet Oct. 25 (gage height, 6.20 

feet); no flow at times. 

1932-48: Maximum discharge, 29,200 second-feet May 14, 1946 (gage height, 10.84 

feet), from rating curve extended above 15,000 second-feet; no flow at times. 

Remarks.- Records fair. Stage-discharge relation during period of low flow affected by 

wind action and occasional accumulation of drift on dam. Low flow affected by 

diversion of Ballinger city pumping plant. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

911!,, 000000000

0000000000000000°oh. 

00000

[000000 00000 00000 00000 00000

m 

w a, r,Or 6-.000

00 000000000 00000 00000 

0;n 0

0 00 

00000 00000 00000 00000 M7 8t 1 N 

1 00 1-i 000000 0000000 w E'0000 00 wt

.,

0 

0 

48 

1.0 

44 

280 0 

4.5 

..6 114 

4.5 

.6 

4.5 

1.0 

.6. 

.2 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

64 

1.5 

.2 

0 

0 

9 

0000

0000000000000000000000 

W 

1 00000 0000000000 00000 N000 00000

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 

W W

? l O "O00 00 oo 000 Loo 00 000 

MO O. .0 

15 0 1.0 11 0 11 7.0 80 11 4.5 640 15 4.5 119 15 

.2 61 15 .1 282 15 a.1 180 15 a.2 88 15 a.4 55 15 

a.1 37 15 a0 20 15 80 20 15 a0 11 15 80 11 15 

a0 11 1.5 80 11 2.5 a0 11 1.5 a0 11 1.5 .2 11 1.5 

.2 11 .6 0 7.0 .1 0 11 0 0 11 0 0 11 0 

0 11 0 

27 0 11 0 

28 .1 15 0 

29 .2 11 0 

30 .2 11 0 

31 - 1.7 0

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet rsAis4, E(74;' 000000000:0 000

October 4,571.4 November 44.0 December 1,770.7 

Calendar year 1947 9,092.7 

147 9,070 1.47 87 57.1 3,510 

24.9 18,040 

6.85 421 .29 17 .02 1.2 16.2 964 5.69 350 16.4 973 20.9 1.280 37.3 229 

-

January 212.2 February 8.5 March .6 April 486.1 May 176.4 

June 490.5 July 647.2 August 115.5 September 2.6 .09 5.2 

Water year 1947-48 8,525.7 1,740 0 23.3 16,910 

Peak diecharge ibase, 2,100 sec.-ft.).- Oct. 25 (6 p.m.) 4,330 sec.-ft. 

a No gage-heIgh record discharge computed on basis of recorded range in stage and weather records. 
COLORADO RIVER BASIN 145 

South Concho River at Christoval, Tex. 

Location.- Water-stage recorder and concrete control, lat. 31°13', long. 100°30', at 

Itanhandle & Santa Fe Railway bridge at Christoval, Tom Green County. Datum of gage 

is 2,010.22 feet above mean sea level, datum of 1929. 

Drainage area.- 434 square miles. 

Records available.- February 1930 to September 1948. 

Average discharge.- 18 years, 44.2 second-feet. 

Extremes.- Maximum discharge during year, 1,400 second-feet May 26 (gage height, 4.34 

feet, from graph based on partial recorder record); minimum, 1.6 second-feet Mar. 18, 

19. 

1930-48: Maximum discharge, 100,000 second-feet July 23, 1938 (gage height, 21.95 

feet, from floodmarks), from rating curve extended above 9,000 second-feet on basis 

of slope-area determination at gage-height 20.5 feet; minimum, that of Mar. 18, 19, 

1948. 

Revisions.- The maximum discharge for the water year 1943 has been revised to 138 

second-feet May 23, 1943 (gage height, 2.47 feet), superseding figures published in 

Water-Supply Paper 978. 

Flood of Aug. 6, 1906, reached a stage about 1.1 feet higher than flood of July 23, 

1938, at a point 0.5 mile downstream from gage, from information oy local residents. 

Remarks.- Records excellent except those above 25 second-feet, which are good. Low flow 

materially affected by diversion 600 feet above station to South Concho Irrigation 

Co.'s canal (see p. 150). 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 3.7 4.9 3.7 7.5 9.5 4.9 4.9 4.3 8.5 2.6 5.7 4.3 2 3.7 4.9 3.7 8.5 9.5 5.7 4.9 4.3 8.5 2.6 4.9 3.7 3 3.7 4.9 3.7 8.5 9.5 6.5 4.9 4.3 7.5 3.1 4.9 3.7 4 3.7 4.9 3.7 8.5 9.5 6.5 4.9 4.3 7.5 4.3 3.7 3.7 5 3.7 4.9 3.7 9.5 9.5 7.5 4.9 4.3 8.5 3.7 4.3 3.1 

6 3.7 4.9 3.7 8.5 9.5 7.5 6.5 3.7 7.5 30 4.3 2.2 7 3.7 4.3 3.7 8.5 9.5 4.9 7.5 4.3 6.5 176 4.3 3.1 8 3.7 4.3 3.7 8.5 8.5 6.5 7.5 4.3 6.5 12 3.7 3.1 9 3.7 4.3 3.7 8.5 8.5 7.5 7.5 4.3 6.5 8.5 3.7 4.3 10 4.3 4.9 3.7 7.5 8.5 7.5 7.5 4.3 5.7 7.5 3.7 4.3 

11 4.3 4.9 3.7 7.5 8.5 7.5 6.5 5.7 8.5 8.5 3.7 3.7 

12 4.3 4.9 4.3 7.5 8.5 7.5 6.5 4.9 7.5 8.5 3.1 3.7 13 4.3 4.3 4.3 7.5 8.5 7.5 6.5 4.9 5.7 8.5 3.1 3.7 14 4.3 4.9 4.3 7.5 7.5 7.5 7.5 4.9 6.5 8.5 3.1 3.7 15 4.3 4.3 4.3 6.5 7.5 9.5 7.5 4.3 6.5 8.5 3.1 4.3 

16 6.5 4.9 4.3 6.5 7.5 11 8.5 3.7 5.7 7.5 3.7 4.3 17 4.9 5.7 4.3 6.5 7.5 7.5 7.5 3.7 4.9 7.5 3.7 3.7 

18 4.3 5.7 3.7 6.5 7.5 4.9 5.7 4.3 4.9 7.5 3.7 4.3 19 4.3 5.7 3.7 7.5 4.3 1.8 4.9 4.3 4.3 7.5 3.7 4.3 20 4.3 5.7 3.7 7.5 4.9 2.2 5.2 4.3 3.1 7.5 3.7 4.9 

• 21 4.3 5.7 3.7 7.5 6.5 2.2 4.9 4.3 2.6 6.5 4.3 4.9 22 4.3 5.7 3.7 7.5 6.5 2.2 4.9 4.3 2.6 6.5 4.3 140 23 4.9 5.7 3.7 7.5 6.5 2.6 5.7 4.3 2.6 6.5 4.3 66 24 4.9 5.7 3.7 8.5 6.5 2.6 5.7 4.3 3.1 6.5 4.9 14 25 4.9 4.3 3.7 8.5 7.5 2.6 7.5 4.3 3.7 5.7 4.9 11 

26 4.9 3.7 4.9 8.5 7.5 3.7 5.7 f336 5.7 5.7 4.9 7.5 27 4.9 3.7 6.5 8.5 7.5 3.7 4.9 46 3.1 5.7 4.9 7.5 28 5.7 3.7 7.5 8.5 6.5 3.7 4.3 9.5 2.6 4.9 4.9 6.5 29 5.7 3.7 7.5 8.5 7.5 4.3 4.3 8.5 2.6 4.3 5.7 7.5 30 5.7 3.7 8.5 8.5 3.7 4.3 8.5 2.6 4.3 4.9 6.5 31 5.7 8.5 8.5 - 4.3 8.5 - 4.9 4.9 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 139.3 6.5 3.7 4.49 276 November 143.8 5.7 3.7 4.79 285 December 139.5 8.5 3.7 4.50 277 

Calendar year 1947 4,410.9 327 3.7 12.1 8,760 - _ 

January 245.5 9.5 6.5 7.92 487 February 226.7 9.5 4.3 7.82 450 March 167.5 11 1.8 5.40 332 April 179.5 8.5 4.3 5.98 356 May 525.9 336 3.7 17.0 1,040 June 162.0 8.5 2.6 5.40 321 July 391.8 176 2.6 12.6 777 August 130.7 5.7 3.1 4.22 259 September 347.5 140 2.2 11.6 689 

Water year 1947-48 2,799.7 336 1.8 7.65 5,550 

Peak discharge (base, 160 sec.-ft.).- May 26 (9:30 a.m.) 1,400 sec.-ft.; July 6 (11:30 p.m.) 554 sec.-ft.; Sept. 22 (6:30 p.m.) 774 sec.-ft. f Computed on basis of partly estimated gage-height record. 
		

		

		

		

146 COLORADO RIVER BASIN 

Lake Nasworthy near San Angelo, Tex. 

Location.- Water-stage recorder, lat. 31°23'15", long. 100°28'40", 250 feet upstream 

from Nasworthy Dam on South Concho River, half a mile downstream from Middle Concho 

River, and 6 miles southwest of San Angelo, Tom Green County. Datum of gage is 

1,840.0 feet above mean sea level, datum of 1929. 

Drainage area.- 2,659 square miles, of which 152 square miles is probably noncontributing. 

Records available.- March 1930 to September 1948. 

Extremes.- Maximum contents during year, 14,040 acre-feet Sept. 22 (gage height, 32.35 

feet); minimum, 2,900 acre-feet Nov. 15-17 (gage height, 21.45 feet). 

1930-48: Maximum contents, 26,900 acre-feet Sept. 15, 1936 (gage height, 38.36 

feet); minimum contents since lake filled, 594 acre-feet Oct. 14, 1936 (gage height, 

12.6 feet). 

Remarks.- Lake is formed by 4,900-foot earthen dam (contains 2 emergency spillways, 300 

and g00 feet in length) and 438-foot concrete service spillway, with a bank of 15 

taintor gates. Dam completed and storage began Mar. 28, 1930. Total capacity, 13,720 

acre-feet (gage height, 32.2 feet, top of flashboards which were added to taintor gates 

in June 1948). Usable capacity, 13,720 acre-feet between gage heights -4.0 feet 

(bottom of two 36-Inch gates) and 32.2 feet (top of flashboards on taintor gates). 

Figures of contents shown herein represent total contents of lake, and are unadjusted 

for siltation. A siltation survey made by the Soil Conservation Service of the U. S. 

Department of Agriculture indicates a 10 percent capacity loss from siltation in 8.2 

years (1930-39). Water used for San Angelo municipal supply. 

Monthly gage height and contents, water year October 1947 to September 1948 

Change in contents GET4tlipt Contents Date during munch (acre-feet) (acre-feet) 

Sept.30 22.7 Oct. 31 21.8 Nov. 30 21.7 Dec. 31 23.6 

Calendar year 1947 -

Jan. 31 24.1 Feb. 29 25.9 Mar. 31 25.1 Apr. 30 24.8 May 31 29.5 June 30 28.5 July 31 28.5 Aug. 31 25.6 Sept.30 31.8 

1 I I i 

G

I(110 610 A001....1 1 A CA .CA " ;. " " I 1 " "1 ", W W""" 0".:-." ' cO'S `<gg 8ti,“a': 

'1 2 V2A 

1 1 1 1 

-

-450 

-50 +1,010 

-3,920 

+320 +1,530 -720 

-250 +4,960 

-1,150 0 -3,110 

+7,440 

Water year 1947-48 - - +9,530 

Gage height at 12 p.m. 
COLORADO RIVER BASIN 147 

South Concho River at San Angelo, Tex. 

Location.- Water-stage recorder above spillway of San Angelo waterworks concrete dam, 

iat. 31°26.45", long.100°25.30",at Lone Wolf Bridge on county road, half a mile south 

of San Angelo, Tom Green County, 1 mile upstream from confluence with North Concho 

River, and 7,470 feet downstream from bridge on U. S. Highways 87 and 277. Datum of 

gage is 1,802.94 feet above mean sea level, datum of 1929. 

Drainage area.- 2,687 square miles, of which 152 square miles is probably noncontributing. 

Records available.- October 1931 to September 1948. 

Average discharge.- 17 years, 134 second-feet. 

Extremes.- Maximum discharge during year, 30,400 second-feet July 6 (gage height, 9.52 

feet); no flow at times. 

1931-48: Maximum discharge, 111,000 second-feet Sept. 17, 1936 (gage height, 23.4 

feet, of which about 2.4 feet was caused by backwater from North Concho River), by 

slope-area method; no flow at times. 

Maximum stage known, 29.7 feet Aug. 6, 1906 (not affected by backwater), from information by local residents. 

Remarks.- Records good. Diversions above station for irrigation, municipal supply, and 

power. Flow partly regulated by Lake Nasworthy (see preceding page). 

Rating table, water year 1947-48 (gage height, in feet, and discharge, in second-feet) 

1.78 0 2.3 54 2.8 555 4.2 4,120 1.9 1.0 2.4 98 3.0 885 4.6 5,580 2.0 4.0 2.5 183 3.2 1,290 5.0 7,200 2.1 15 2.6 285 3.4 1,740 5.2 8,100 2.2 31 2.7 412 3.8 2,880 

Discharge, in second-feet, water year October1947 to September1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 

2 0 

0 0 

0 

0 

0 

0 

0 1.4 

.5 

0 

0 2.1 2.2 144 233 0 0 

4.0 

3.9 0 0 

3 0 0 0 0 0 0 .5 37 0 .4 0 

4 0 0 0 0 0 .9 0 6.1 1.7 0 .1 5 0 0 0 0 0 3.5 0 6.1 12 0 3.0 

6 

7 .6 1.4 0 

0 0 

0 

0 

0 0 

0 

2.4 

1.2 0 0 1.4 7,770 0 6,930 1.0 

.7 3.2 

.2 

8 .5 0 0 2.3 0 2.4 0 0 1.140 0 0 9 5.3 0 9.0 0 2.5 0 0 309 3.7 10 4.0 0 0 4.6 1.8 1.4 0 0 309 0 4.0 

11 2.1 0 0 2.1 3.5 0 4.2 0 173 0 2.7 12 1.0 0 0 1.6 2.1 0 6.1 0 73 0 3.1 13 .3 0 0 1.8 .7 O 3.5 0 54 0 2.2 14 0 0 0 2.0 0 0 2.1 .1 37 0 .2 

15 0 0 0 .5 0 0 .8 0 30 0 0 

16 0 0 0 .1 0 0 0 0 9.7 0 0 

17 0 0 0 0 0 0 0 0 3.5 0 0 

18 0 0 0 0 8.8 0 0 0 4.6 0 0 

19 0 0 0 0 4.9 • 0 0 2.7 .1 0 

20 0 0 0 0 0 0 0 .3 0 0 

21 0 0 0 0 0 0 0 0 0 0 59 22 0 0 0 0 0 0 0 0 0 0 986 23 0 0 0 0 .5 0 .6 0 0 264 24 0 .1 0 0 .1 2.4 0 1.5 .4 0 116 25 0 1.2 0 0 1.5 7.8 0 .2 2.1 0 13 

26 0 1.6 0 .3 3.5 43 .3 1.6 0 13 27 0 1.0 .4 .3 1.2 39 4.1 0 0 12 28 0 .6 1.4 1.2 .1 43 1.3 0 0 10 

29 0 .2 1.2 1.7 o 51 0 0 0 7.8 30 0 0 0 .5 0 51 0 0 0 7.8 31 0 0 0 .2 40 0 0 

Month Secondfoot-days Maximum Minim= Mean Runoff in 

acre-feet 

October 15.2 5.3 0 0.49 30 

November 0 0 0 0 0 

December 4.8 1.6 0 .15 9.5 

Calendar year 1947 6,846.9 744 0 18.8 13,580 

January 

February 

March 

.4 27.0 

29.5 

.1 

9.0 

8.8 

0 

0 

0 

.01 -

.93 

.95 

.8 54 

59 

April 

May 

June 

29.9 

288.5 

435.7 

7.8 

51 

233 

0 

0 

0 

1.00 

9.31 

14.5 

59 

572 

864 

July 

August 

September 

16,863.6 10.1 1,511.0 

7,770 4.0 986 

0 

0 

0 

544 .33 50.4 

33,450 20 3,000 

Water year 1947-48 19,215.7 7,770 0 52.5 38,120 

Peak discharge (base, 6,100 sec.-ft.).- July 6 (10 p.m.) 30,400 sec.-ft. 
148 COLORADO RIVER BASIN 

Concho River near San Angelo, Tex. 

Location.- Water-stage recorder, lat. 31°27'10", long. 100°24'40", half a mile downstream 

rom confluence of North Concho and South Concho Rivers and miles southeast of San 

Angelo, Tom Green County. Datum of gage is 1,776.8 feet above mean sea level, datum 

of 1929. 

Drainage area.- 4,492 square miles, of which 275 square miles is probably noncontributing. 

Records available.- September 1915 to September 1948. 

Average discharge.- 33 years, 181 second-feet. 

Extremes.- Maximum discharge during year, 47,500 second-feet July 6 (gage height, 30.00 

feet, from floodmark), minimum, 0.8 second-foot June 23. 

1915-48: Maximum discharge, 230,000 second-feet Sept. 17, 1936 (gage height, 46.6 

feet, from floodmarks), by slope-area method; no flow Nov. 29, 1921. 

Maximum stage known, 47.5 feet Aug. 6, 1906 (discharge, about 246,000 second-feet), 

from information by local residents. 

Remarks.- Records good. Many diversions above station for irrigation and municipal 

supp y. Flow partly regulated by Lake Nasworthy on South Concho River (see p. 146). 

Revisions (water years).- W 568: 1915-22. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 1.5 1.6 1.9 1.5 3.2 17 4.8 3..6 482 61 11 1.8 2 1.6 1.6 2.1 1.5 3.2 11 4.8 3.6 382 5, 35 1.5 

3 1.4 1.8 4.0 1.5 3.2 8.6 4.4 2.8 67 6. 20 1.6 4 1.3 1.5 14 1.6 2.8 7.8 4.0 3.2 22 11 12 1.9 5 1.5 1.4 33 1.8 1.9 6.8 6.0 2.3 27 819 9.7 3.2 

6 1.5 1.5 11 1.8 1.8 6.4 5.2 1.8 11 16,400 9.2 5.6 7 2.8 1.6 8.2 1.9 1.6 5.6 3.6 1.8 4.8 30,000 d8.0 1.5 8 54 1.3 4.0 2.1 2.1 6.0 5.2 1.9 6.0 2,900 d6.8 1.6 9 92 1.3 6.0 2.1 11 5.6 6.0 2.1 4.8 672 d5.6 6.0 10 12 1.4 4.0 1.9 11 6.8 4.4 1.9 3.6 537 4.4 8.6 

11 6.4 1.5 2.6 2.1 4.8 10 2.8 348 2.6 327 4.0 6.4 12 4.0 1.3 1.9 1.9 3.6 8.6 1.9 18 2.1 152 3.6 4.4 13 2.8 1.5 1.6 1.9 2.6 6.0 1.8 9.2 2.3 117 2.8 4.8 14 2.1 1.6 1.8 2.1 4.0 3.6 1.9 6.4 4.4 83 2.8 1.8 15 2.6 1.2 2.3 1.9 1.8 4.8 1.9 4.0 2.8 67 2.3 1.6 

16 2.1 1.3 1.6 1.9 1.5 4.4 1.8 2.6 1.9 40 2.1 1.5 17 1.8 7.0 1.5 2.1 1.9 3.6 1.6 2.1 1.5 27 2.1 1.4 18 1.6 5.2 1.6 2.3 1.9 9.5 1.8 1.9 1.3 25 2.3 al.5 19 1.5 2.8 1.6 2.3 2.1 11 1.8 1.9 1.3 21 2.6 1.6 20 1.5 2.1 1.6 2.8 1.6 3.2 1.6 1.9 1.0 17 2.3 1.8 

21 1.5 1.8 1.6 3.2 1.4 2.3 1.5 1.8 1.1 14 1.9 28 22 1.5 2.3 1.6 2.3 1.4 6.3 3.1 1.6 1.0 11 2.1 1,590 23 1.6 2.1 1.5 2.3 1.4 72 2.8 1.5 1.0 14 1.9 1,090 24 1.8 1.6 1.5 2.8 1.6 32 13 1.6 1.6 11 1.8 349 25 1.6 1.5 1.6 2.6 1.6 19 59 7.3 1.4 11 1.9 80 

26 

27 3.6 

2.3 1.5 

1 .5 2.3 

2.1 2.6 

2.8 7.1 416 13 

9.7 11 8.2 757 1,590 77 329 11 

9.7 1.8 

1.9 45 

29 28 1.9 1.4 1.6 2.6 63 7.3 6.4 61 85 10 1.8 23 29 1.9 2.3 1.6 2.8 26 9.2 5.6 67 32 8.6 2.1 17 30 1.9 4.4 1.5 2.6 7.8 4.8 60 18 d7.8 2.3 14 31 1.6 1.5 2.8 - 5.2 52 97.3 2.1 -

Month Secondfoot-days Maximum Minimum Mean Runoff in 

acre-feet 

October 217.2 92 1.3 7.01 431 November 60.9 7.0 1.2 2.03 121 December 124.7 33 1.5 4.02 247 

Calendar year 1947 17,663.8 6,290 1.1 48.4 35,000 - - - - - - - - - - - - - January 

February 

March 

68.4 

587.1 

330.1 

3.2 416 

72 

1.5 

1.4 

2.3 

2.21 

20.2 

10.6 

136 1,160 655 April 

May 

June 

182.7 1,508.8 

3,091.5 

59 

757 1,590 

1.5 

1.5 

1.0 

6.09 

48.7 

103 

382 2,990 

6,130 July 

August 

September 

52,348.8 170.2 3,325.1 30,000 35 1,590 

5.6 1,689 1.8 5.49 1.4 111 103,800 338 6,600 

Water year 1947048 62,015.5 30,000 1.0 169 123,000 

Peak discharge (base, 5,700 sec.-ft.).- July 6 (10 p.m.) 47,500 sec.-ft.; Sept. 22 (10 p.m.) 6,340 sec.-ft. a No gage-height record; discharge interpolated. 

d Doubtful gage-height record; discharge interpolated, or computed on basis of estimated gage heights. Note.- Discharge computed on basis of partly estimated gage-height record July 6, 7. 
COLORADO RIVER BASIN 149 

Concho River near Paint Rock, Tex. 

Location.- Water-stage recorder above spillway of masonry dam, lat. 31031, , long. 99°55', at bridge on U. S. Highway 83, a quarter of a mile north of Paint Rock, Concho County. 

Datum of gage is 1,574.43 feet above mean sea level, datum of 1929. 

Drainage area.- 5,538 square miles, of which 275 square miles is probably noncontributing. 

Records available.- September 1915 to September 1948. 

Average discharge.- 33 years, 237 second-feet. 

Extremes.- Maximum discharge during year, 40,600 second-feet July 7 (gage height, 27.37 

feet); no flow Oct. 1-8, Sept. 17. 

1915-48: Maximum discharge, 301,000 second-feet Sept. 17, 1936 (gage height, 43.4 

feet, from floodmarks), by slope-area method; no flow at times. 

Remarks.- Records good except those above 5,000 second-feet, which are fair. Many diversions above station for irrigation and municipal supply. Flow partly regulated by 

Lake Nasworthy on South Concho River (see'p. 146). 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 0 5.6 3.1 6.5 7.3 76 5.6 11 257 59 14 0.4 

2 0 3.6 4.2 6.5 9.0 44 4.2 7.3 546 33 14 .3 

3 0 2.5 4.8 6.5 9.0 30 4.2 5.6 316 265 14 .2 

4 0 2.5 6.5 6.5 8.2 26 3.6 4.2 140 265 12 .2 

5 0 2.5 12 6.5 7.3 17 3.1 3.6 82 1,160 26 .1 

6 0 1.9 14 6.5 8.2 17 1.9 1.9 47 10,300 22 .1 

7 0 1.7 63 6.5 7.3 15 1.9 1.5 37 33,100 14 .1 

8 0 1.7 68 6.5 7.3 15 1.7 1.0 30 12,500 8.2 .1 

9 200 1.2 35 7.3 6.5 14 1.2 .7 21 865 5.6 .7 

10 184 1.2 24 6.5 5.6 12 .8 .8 22 598 7.3 .4 

11 68 .8 19 6.5 5.6 9.0 .7 954 9.0 588 4.8 .2 

12 35 .8 15 6.5 5.6 8.2 .5 316 7.3 376 3.6 .1 

13 21 1.2 12 5.6 8.2 8.2 .4 93 5.6 304 2.5 .1 

14 12 1.5 11 5.6 12 9.0 .4 47 4.2 186 1.9 .1 

15 7.3 2.5 14 5.6 11 12 .4 30 2.5 136 1.7 .1 

16 5.6 1.9 11 5.6 9.0 12 .4 21 1.5 108 1.2 .1 

17 4.8 2.5 9.0 4.8 8.2 9.0 .3 12 1.2 90 .7 0 

18 3.6 3.6 8.2 4.8 8.2 8.2 .3 9.0 .7 68 .7 .1 

19 3.1 5.6 8.2 4.8 8.2 6.5 .2 6.5 .6 52 .7 .2 

20 1.9 8.2 9.0 6.5 7.3 4.8 .2 5.6 .4 47 .6 ..3 

21 1.7 5.6 8.2 7.3 6.5 4.2 .2 4.2 .3 39 .6 .4 22 1.7 8.2 7.3 8.2 5.6 6.5 .2 3.1 .2 35 .5 28 

23 1.5 8.2 7.3 8.2 4.8 5.6 .4 1.9 .2 33 .5 1,410 24 1.5 6.5 7.3 7.3 4.8 6.5 12 21 .1 30 .4 586 

25 12 6.5 7.3 7.3 5.6 8.2 268 99 .1 24 .2 256 

26 8.1 5.6 8.2 7.3 6.5 N. 66 569 162 26 .2 116 

27 1.9 4.2 7.3 7.3 12 62 429 1,260 33 .2 82 

28 211 4.2 8.2 4.8 239 21 33 149 261 19 .1 52 

29 243 4.2 7.3 4.8 124 15 21 155 140 17 .1 37 

30 33 3.6 7.3 5.6 12 15 106 82 15 .3 26 

31 12 7.3 7.3 - 6.5 79 12 .4 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 1,073.7 243 0 34.6 2,130 November 109.8 8.2 .8 3.66 218 December 434.0 68 3.1 14.0 861 _ Calendar year 1947 31,896.3 5,920 0 87.4 63,260 

January 197.5 8.2 4.8 6.37 392 February 567.8 239 4.8 19.6 1,130 March 490.4 76 4.2 15.8 973 

April 509.8 268 .2 17.0 1,010 

May 3,147.9 954 .7 102 6,240 

June 3,436.9 1,260 .1 115 6,820 

July 61,382 33,100 12 1,980 121,700 

August 159.0 26 .1 5.13 315 

September 2,597.3 1,410 0 86.6 5,150 

Water year 1947-48 74,106.1 33,100 0 202 146,900 

Peak discharge (base, 4,600 sec.-ft.).- May 11 (6 a.m.) 5,830 sec.-ft.; July 7 (9 p.m.) 40,600 

sec.-ft. 
150 COLORADO RIVER BASIN 

South Concho Irrigation Co.'s canal at Christoval, Tex. 

Location.- Water-stage recorder, lat. 31°13, , long. 100°30', at Christoval, Tom Green 

County, 85 feet downstream from point of diversion and 100 feet downstream from bridge 

on U. S. Highway 277. Datum of gage is 2,017.0 feet above mean sea level, datum of 

1929. 

Records available.- November 1939 to September 1948. (November 1921, February 1930 to 

September 1939, miscellaneous discharge measurements only.) 

Extremes.- Maximum daily diversion for irrigation during year (excluding flood flow), 12 

second-feet July 18-26; minimum daily, 5.6 second-feet Feb. 5-7, 9, 11-13. 

1939-48: Maximum daily diversion for irrigation (excluding flood flow), 21 secondfeet June 27, 28, 1941, Sept. 18, 21, 1942; minimum daily, 2.7 second-feet Dec. 12, 1941. 

Remarks.- Records fair. No diversion above station. Canal diverts water for irrigation 

-From right bank of South Concho River 600 feet above station at Christoval. Water Service Report to the State Board of Water Engineers indicates 1,200 acres irrigated during 

current year. 

Monthly discharge, in second-feet, water year October 1947 to September 1948 

Runoff in Month Maximum Minimum Mean acre-feet 

October 11 9.4 10.1 622 November 11 10 10.6 633 December 10 6.6 9.36 575 -

Calendar year 1947 12 4.2 9.27 6,710 

January 7.1 5.8 6.46 397 February 8.9 5.6 6.01 346 March 9.8 5.8 7.63 469 April 10 7.6 9.02 537 May 8.7 5.8 7.18 441 June 9.4 7.9 8.73 519 July 12 8.9 10.9 672 August 11 8.7 9.43 580 September 11 6.2 8.84 526 

Water year 1947-48 12 5.6 8.70 6,320 

Note.- Stage affected by flood runoff May 26-28, July 6-8; discharge used roT-17Figation interpolated. 
		

e

COLORADO RIVER BASIN 151 

Middle Concho River near Tankersly, Tex. 

Location.- Water-stage recorder and masonry control, lat. 31°22'35", long. 100°36'50", at 

Twelvemile Bridge, 3 miles northeast of Tankersly, Tom Green County, and 9i miles upstream from Spring Creek. Datum of gage is 1,919.5 feet above mean sea level, datum of 

1929 

Drainage area..- 1,280 square miles, of which 152 square miles is probably noncontributing. 

Records available.- February 1930 to September 1948. 

Average discharge.- 18 years, 43.8 second-feet. 

Extremes.- Maximum discharge during year, 30,500 second-feet July 6 (gage height, 23.73 

feet, from rating curve extended above 11,000 second-feet on basis of computed flow 

over Nasworthy Dam, 12 miles downstream, corrected for inflow and storage for flood of 

Sept. 26, 1936; no flow at times. 

1930-48: Maximum discharge, 35,900 second-feet Sept. 26, 1946 (gage height, 24.30 

feet, from floodmark), from rating curve extended above 11,000 second-feet as noted 

above; no flow at times. 

Maximum stage known, about 27.2 feet in April 1922, from information by State Highway Department. 

Remarks.- Records good. Small diversions for irrigation above station affect low flow. 

Rating table, water year 194,-48 (gage height, in feet, - and discharge, in second-feet) (Shifting-control method used July 6-8, Sept. 26-30) 

1.91 0 2.5 8.4 3.4 89 4.6 525 9.0 2,270 

2.0 .9 2.6 11.2 3.6 141 5.0 685 11 3,400 

2.1 1.9 2.8 19.0 3.8 200 6.0 1,050 13 4,700 

2.3 4.6 3.0 31 4.0 265 7.0 1,380 15 6,100 

2.4 6.3 3.2 52 4.3 385 8.0 1,770 16 6,800 

Discharge, In second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 00000 . („r8; f5,, ,...3000 00000 

0 00 000 0000000 00 0 00000 000... .Mm00

0 000

0000 000000

0000 00 000000.mm

000000000000000000000 ,0! 

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 

0 2.9 MNW&M000000000000000000N WN NA W.

0 

0 

0 

0 

0 

0 

0 

0 

0 

4.8 

.2 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

1.5 

.6 

.4 55 

6,700 

5,330 

1,210 312 

110 

52 

31 

23 

15 

11 

7.6 

5.8 

4.3 

3.2 

2.4 

1.8 

1.4 

1.1 

.8 

.5 

.3 

0 

0 

0 

0 

1,510 136 

47 

20 

9.4 

4.7 0 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 

November 

December 

Calendar year 1947 

January 

February 

March 

April 

May 

June 

July 

August 

September 

Water year 1947-48 

5,6res 1 e"c7c-rTA;seki7D017e:c6,g- . 

905771 0-50- 11 

0 0 0 0 0 0 0 0 0 0 

540.2 406 0 17.4 1,070 

4,134.5 1,050 0 11.3 8,200 _ -

0 0 0 0 0 604 356 0 20.8 1,200 

44.1 22 0 1.42 87 0 0 0 0 0 1,732.1 1.510 0 55.9 3,440 756.7 396 0 25.? 1,500 13,883.6 00 

6,700 0 448 27,540 0 0 0 

3,794.1 2,620 0 126 7,530 

21,354.8 6,700 0 58.3 42,370 

26 12)2miL;6Tins.VaYs:Y.-.(8:30 n."") 
		

.

152 COLORADO RIVER BASIN 

Spring Creek near Tankersly, Tex. 

Location.- Water-stage recorder and concrete control, lat. 31°21,30", long. 100°32,05", 

E? miles upstream from mouth and 6f miles east of Tankersly, Tom Green County. Datum 

of gage is 1,874.6 feet above mean sea level, datum of 1929. 

Drainage area.- 734 square miles. 

Records available.- February 1930 to September 1948. 

Average discharge.- 18 years, 37.2 second-feet. 

Extremes.- Maximum discharge during year, 14,800 second-feet July 6 (gage height, 16.83 

feet); no flow at times. 

1930-48: Maximum discharge, 26,900 second-feet Aug. 23, 1942 (gage height, 21.37 

feet), from rating curve extended above 18,000 second-feet; no flow at times. 

Maximum stage known, about 26.0 feet in 1882, from information by local residents. 

Remarks.- Records fair. Several small diversions above station for irrigation. 

).e,,is.lons (water year).- W 928: 1936. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 

2 

3 

4 

5 

0 

0 

0 

0 

0 

2.8 

2.6 

2.3 

2.2 

2.2 

0.8 

.8 

.8 

.9 

.9 

1.7 

1.5 

1.2 

1.0 

.9 

9.1 

8.8 

5.3 

3.2 

5.3 

0.1 

.1 

.1 

.3 

1.8 

. 0 .. .

AU, NN.C.

00000 

6 

7 

8 

9 

10 

0 

D 

0 

0 

0 

2.1 

2.2 

2.6 

2.1 

2.0 

.9 

.8 

.8 

.8 

.7 

.7 

.7 

.7 

.8 

.8 

2.8 2,460 1.6 598 1.2 74 1.1 29 1.0 12 .. . . .

00000 0 

11 

12 

13 

14 

15 

.3 

1.1 

.6 

.4 

.6 

2.0 

2.0 

2.0 

1.7 

1.6 

.6 

.6 

.5 

.5 

.5 

.8 21 

6.8 

2.8 

2.0 

1.1 

.8 

.9 

.5 

.5 

7.4 

4.8 

3.5 

.. . . . 

3.1 

2.3 

0000

16 

17 

18 

19 

20 

.8 

1.0 

1.1 

1.5 

1.0 

1.6 

1.6 

1.6 

1.6 

1.5 

.5 

.4 

.3 

.3 

.3 

1.7 

1.6 

1.4 

1.3 

1.2 

.4 

.4 

.4 

.4 

.4 .. . . 

2.0 .

0 0 0000

1.6 

1.5 

1.2 

1.1 

21 

22 

23 

24 

25 

1.2 

1.3 

1.4 

1.5 

1.7 

1.4 

1.1 

1.2 

1.2 

1.2 

.3 

.3 

.4 

.3 251 

1.1 

1.1 

1.1 

.8 

.8 

.1 

.1 

.1 

.1 

.1 

0 

.. . . 

.. 

0N0

1.1 

1.1 

.9 

1.0 

.9 

26 

27 

28 

29 

30 

31 

2.0 

20 

11 

4.2 

-

1.1 

1.1 

1.0 

.9 

.8 

.7 

73 1,330 12 200 4.1 52 2.3 19 2.0 12 

10 

1.4 

.3 

.1 

.1 

.1 

.7 

.5 

.4 

.4 

.4 

.4 

000000

Month Secondfoot-days Maximum Minimum Mean Runoff in 

acre-feet 

October 0 0 0 0 0 November 0 0 0 0 0 December 0 0 0 0 0 

Calendar year 1947 1,210.4 56 0 3.32 2,400 -

January 

February 

March 

0 

52.7 

52.0 

0 

20 

2.8 

0 

0 

.7 

0 

1.82 

1.68 

0 

105 

103 April 

May 

June 

358.4 1,678.5 47.7 251 1,330 9.1 

.3 

.7 

.1 

11.9 

54.1 

1.59 

711 3,330 95 July 

August 

September 

3,211.7 4.7 2,359.3 2,460 .3 1,840 .1 

0 

0 

104 .15 78.6 

6,370 9.3 4,680 

Water year 1947-48 7,765.0 2,460 0 21.2 15,400 

Peak discharge (base 300 sec.-ft.).- Apr. 25 (1 p.m.) 637 sec.-ft.; May 26 (7 a.m.) 4,250 sec.- ft.; July 6 (6- p.m.) 14,800 sec.-ft.; Sept. 22 (6 a.m.) 4,560 sec.-ft. 
COLORADO RIVER BASIN 153 

Dove Creek near Knickerbocker, Tex. 

Location.- Water-stage recorder, lat. 31°12, , long. 100°41,, in Irion County, upstream 

from Knickerbocker-Rawls ranch road crossing, a quarter of a mile downstream from 

Stilson diversion dam, three-quarters of a mile upstream from Kepler Creek, 2 miles 

downstream from Dove Creek Spring, and 7 miles southwest of Knickerbocker, Tom Green 

County. 

Records available.- November 1944 to September 1948. 

Extremes.- Maximum gage height during year, 6.85 feet May 26 (discharge not determined); 

no flow at times. 1944-48: Maximum gage height 7.08 feet July 6, 1945 (discharge not determined); 

no flow at times. 

Remarks.- Records fair except those for periods of no gage-height record, which are poor. 

-11TTfie primary purpose of this station is to measure low or spring flow, discharge 

not computed for flows greater than about 15 second-feet. Diversions for irrigation 

above station. 

Discharge, in second-feet. water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 00000000000 0000

000000 . . . . 001 

0 0

0 

1.7 2.4 0.9 0 '.4 3.1 2.0 1.6 0.8 1 1.3 2.3 

2 1.3 2.0 

3 1.4 2.1 4 1.4 2.0 5 1.5 

6 1.5 7 1.6 8 1.6 9 1.6 10 1.7 

1.8 1.7 1.7 1.8 1.9 1.9 

11 1.7 1.6 12 1.8 1.7 13 1.8 1.7 

14 1.9 1.7 15 1.9 1.7 

16 1.9 1.6 17 2.0 2.1 18 2.0 1.7 19 2.1 1.5 20 2.1 1.4 

21 2.2 1.3 22 2.2 1.3 23 2.2 1.4 24 2.3 1.3 25 2.3 1.2 

26 2.7 1.2 27 2.5 1.1 28 2.5 .1 29 2.5 0 30 2.3 0 31 2.3 0 

.1 .7 .4 .2 .1 0 .- .1 0..' .. .1 .1 .7 .4 .3

.1 .1 .1 .8 .8 .3 

0 .1 .6 .4 

0

3 .1 .1 .1 .6 

0000

.1 .1 .6 a .2 

.1 .1 0 .1 .5 .2 

.. .1 .1 .1 .5 .2 .3

1 .1 .1 .1 .4 .2 .2

.4 .1 .3 .1 0 .1 .1 (e) 0 .1 .2 1 .2 .1 .1 .1 .1 .1 .. .1 .1 .4 .1 .2 .1

.1 .1 .1 .4 3.0 .3 .1 .2 . 1 6.6 6.8 11 .3 .8 5.9 4.3 4.0 3.2 

11 7.2 6.2 6.4 7.2 6.9 6.2 8.2 7.4 

8.5 7.2 11 7.2 6.2 6.7 7.4 6.9 6.4 7.2 11 7.2 6.2 6.7 7.4 7.2 6.4 8.5 

8.5 7.2 10 7.2 6.4 6.4 7.2 6.9 6.9 8.2 7.2 11 6.9 6.4 6.7 7.4 6.7 6.6 

6.7 7.2 6.7 6.4 7.9 7.2 11 6.9 

6.7 6.9 7.9 7.2 10 6.9 6.9 6 9 7.2 10 6.9 1 1 6.7 6 9 6.7 6.4 7.9 

7.7 C.9 10 6.7 7.? 6.7 6 5 6.7 7.4 9.8 7.2 7.4 6.7 6.9 6.7 e (e) 

6.7 8.9 6.7 7.2 (e) 9.2 9.6 6.9 7.7 

12 6.9 9.8 6.7 7.7 6.7 7.2 6.7 7.2 9.3 6.4 9.6 6.7 7.9

9.6 6.7 9 6 6.7 8.2 6.7 7.4 6,7 7.2

6.7 7.4 6.7 7.4 

7.7 9.8 6.7 7.3 6.7 8.2 6.7 - 6.7 

6.7 3.0 9.6 6.4 6.7 -

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

60.1 2.7 1.3 1.94 119 October 44.8 2.3 0 1.49 89 November .8 .1 0 .03 1.6 December 

717.1 - 0 1.96 1,420 Calendar year 1947 

January 112.9 6.9 0 3.64 224 

February 111.3 8.9 .1 3.84 221 

116.7 7.2 .1 3.76 231 March 0 - April - - May - 122.4 9.2 4.08 243 

July 

June 

116.5 7.2 3.76 231

September - 0 

-

August 

- Water year - -

e Stage above limits of rating; discharge not determined. 

Note.- No gage-height record Oct. 2-21. Jan. 26 to Feb. 2; discharge computed on basis of recorded range in stage, weather records, and information by local residents. 

Dove Creek Spring near Knickerbocker, Tex. 

Location.- Staff gage, lat. 31°11., long. 100°44., at W. G. Rawls ranch house, 200 feet 

downstream from spring, 300 feet upstream from confluence with Dove Creek, lyi miles 

upstream from SLilson Dam, and about miles southwest of Knickerbocker, Tom Green 

County. 

Records available.- April 1944 to September 1948 (discharge measurements only). 

Kxtremes.- maximum discharge measured during year, 9.85 second-feet Sept. 28; minimum 

measured, 6.37 second-feet Apr. 20. 

1944-48: Maximum discharge measured, 17.2 second-feet Aug. 23, 1944; minimum 

measured, that of Apr. 20, 1948. 

Remarks.- Discharge measurements represent total flow of springs. Flow emerges from lime-

-FUME outcrop at left bank of draw that extends upstream for about 1 mile, and responds 

to rainfall on Edwards Plateau. Water used for irrigation below station. 
.

.

154 COLORADO RIVER BASIN 

Discharge measurements, in second-feet, of Dove Creek Spring near Knickerbocker, Tex., 1947-48 

Date Discharge Date Discharge Date Discharge 

Oct. 22 7.43 Apr. 20 6.37 Aug. 27 7.84 

Dec. 12 7.30 May 7 7.80 Sept.28 9.85 

Feb. 3 6.70 June 12 9.67 

Mar. 15 6.68 July 20 9.82 

North Concho River at Sterling City, Tex. 

Location.- Water-stage recorder and concrete control, lat. 31°50,, long. 100°59., at 

county highway bridge, 0.3 mile south of Sterling City, Sterling County, and 4 miles 

upstream from Sterling Creek. Datum of gage is 2,242.4 feet above mean sea level, 

datum of 1929. 

Drainage area.- 690 square miles, of which 75 square miles is probably noncontributing. 

Records available.- September 1939 to September 1948. 

Extremes.- Maximum discharge during year, 26,000 second-feet July 6 (gage height, 23.70 

feet), from rating curve extended above 2,800 second-feet on basis of slope-area 

determination at gage height 23.52 feet; no flow at times. 

1939-48: Maximum discharge, that of July 6, 1948; no flow at times. 

Maximum stage known prior to 1939, 22.4 feet May 6, 1891, from information by local 

residents. 

Remarks..- Records good. Small diversions above station for irrigation. 

Discharge, in second-feet, water year October 1947 to September 1946 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

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 

00. 

0000

000000 0000000000 00000 ciS 0000 

'

.

10 00000 00000 0000000000 00000

W A 

0.5 

.3 

.2 

.2 

.1 

.2 

.2 

.3 

.3 

.2 

.2 

.2 

.2 

.2 

.1 

.2 

.2 

.3 

.3 

.1 

'''

.., 00000 0000000000 

00000 00000 M0-'m.

7.. .,

-

' 

(9 1 

00000 00000 00000 00000 00000 ..7 N 00 ,, 

'11 doo00000 00000 000000000000000 , 

0.3 0.8 0 .8 0 .7 0 .6 192 .6 

12,700 .6 3,060 .4 121 .2 20 0 9.8 .1 

6.3 .1 4.5 0 3.2 0 2.8 0 2.1 0 

1.6 0 1.3 0 1.0 0 1.0 0 .8 0 

.6 0 .5 0 .5 0 26 0 14 0 

5.4 0 1.9 0 1.0 0 .9 0 .5 0 .7 0 

It.. 00N .-+rMV 00000000000000000000

1 .. NM 

258 

18 

3.7 

2.2 

.8 

.6 

.5 

.4 

.4 

.3 

.1 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

24 0 1.05 64 

November 0 0 0 0 0 

December 0 0 0 

October 32.5 

0 0 

Calendar year 1947 1,479.9 655 0 4.05 2,930 -

January 0 0 0 0 0 

February 34.3 29 0 1.18 68 

March 289.5 258 .1 9.34 574 

April .3 .1 0 .01 .6 

May 51.1 37 0 1.65 101 

June 1,021.0 799 0 34.0 2,030 

July 16,179.7 12,700 0 522 32,090 

August 4.9 .8 0 .16 9.7 

September 513.7 356 0 17.1 1,020 

Water year 1947-48 18,127.0 12,700 0 49.5 35,960 

Peak discharge (base 300 sec.-ft.).- Mar. 21 (10:45 a.m.) 884 sec.-ft.; June 26 (1:45 a.m.) 3,120 sec.-ft.; June 26 (7:30 p.m.) 309 sec.-ft.; July 6 (10:30 a.m.) 26,000 sec.-ft.; Sept. 21 (11:30 

p.m.) 485 sec.-ft.; Sept. 22 (5:30 p.m.) 1,070 sec.-ft. 
		-- 

COLORADO RIVER BASIN 155 

North Concho River near Carlsbad, Tex. 

Location.- Water-stage recorder above spillway of State Sanatorium Dam, lat. 31°36., 

ong. 100°40, , 2 miles upstream from Carlsbad, Tom Green County. Datum of gage is 

2,000.8 feet above mean sea level, datum of 1929. 

Drainage area.- 1,529 square miles, of which 123 square miles is probably noncontributing. 

Records available.- March 1924 to September 1948. 

Average discharge.- 24 years, 52.2 second-feet. 

Extremes.- Maximum discharge during year, 47,800 second-feet July 6 ;gage height, 14 14 

feet), from rating curve extended above 5,000 second-feet on basis of slope-area 

determinations at gage heights 11.5, 14.45, and 16.0 feet; no flow Oct. 1 to Dec. 2. 

1924-48: Maximum discharge, 94,600 second-feet Sept. 26, 1936 (gage height, 16.0 

feet, from highest floodmarks known), by slope-area method; no flow at times. 

Remarks.- Records good exgept those for periods of no gage-height record, which are fair. 

Diversions by pumping above station affect low flow (combined capacity of pumps, 40 

second-feet); low flow also partly regulated by small reservoir above station. 

Revisions (water year).- W 748: 1930(M). 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 0 3.2 3.4 5.0 4.5 1.5 87 4.4 3.3 0.1 

2 0 3.6 3.4 4.8 4.6 1.5 1' 2.5 5.0 .1 

3 120 3.6 3.5 4.6 4.6 1.5 4.5 1.7 3.3 .1 4 42 4.2 3.6 4.4 4.6 1.4 1.5 1.7 2.2 .1 

5 3.8 4.2 3.3 4.1 4.6 1.0 1,2 159 1.7 .1 

6 .9 5.4 3.3 3.6 4.6 .7 .8 17,900 1.7 .1 

7 14 6.1 3.3 3.9 4.7 .5 .6 17,800 1.7 .1 

8 3.0 5.4 3.3 3.4 4.4 .5 .4 793 1.5 .1 

9 .9 6.2 3.3 4.5 4.7 .4 .3 113 1.5 .1 

10 .5 6.2 3.3 3.4 4.7 .3 .1 70 1.4 .1 

11 .4 6.9 3.3 2.1 4./ .3 .1 42 1.2 .1 

12 .3 6.2 3.3 2.1 4.8 .3 .1 27 1.0 .1 

13 .4 5.6 3.3 2.1 4.8 .4 .5 20 .8 .1 

14 .3 6.3 3.6 2.1 4.8 .4 .4 16 .6 .1 

15 .6 6.3 3.6 2.1 5.4 .4 .2 12 .6 .1 

16 .9 5.6 3.3 2.1 5.4 .2 .1 9.8 .6 .1 

17 1.2 5.1 3.6 2.1 4.9 .1 .1 7.9 .5 .1 

18 1.9 5.1 3.3 2.1 4.9 .1 .1 7.1 .5 .1 

19 1.6 5.7 3.3 2.1 4.9 .1 .1 5.6 .4 .1 

20 1.7 5.1 3.0 2.1 4.9 .1 .1 4.9 .4 .1 

21 1.9 3.3 3.0 2.1 4.9 .1 .1 4.9 .3 .1 

22 2.2 3.0 3.0 153 5.6 .1 .1 3.8 .3 338 

23 4.5 2.7 3.0 26 14 .1 .1 3.8 .3 145 

24 5.1 3.0 3.0 11 8.6 .3 .1 3.2 .2 43 

25 3.4 3.0 3.0 6.4 4.4 .1 .1 2.8 .2 19 

26 2.6 3.1 16 5.7 3.5 .1 1,320 2.4 .2 8.9 

27 3.4 3.1 98 5.0 3.8 .1 114 4.3 .2 5.2 

28 4.0 3.2 13 5.1 3.8 .1 30 4.3 .2 4.4 

29 3.5 3.2 6.4 4.5 3.4 .1 11 2.8 .2 3.8 

30 3.5 3.3 3.4 2.2 .1 7.2 2.5 .? 3.3 

31 3.1 3.3 - 4.0 .1 - 2.2 .2 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet' 

October 0 0 0 0 0 November 0 0 0 0 0 December 231.6 120 0 7.47 459 -

Calendar year 1947 10,393.0 6,960 0 28.5 ^ 20,610 _ __- ---

January 140.2 6.9 2.7 4.52 278 

February 215.7 98 3.0 7.44 428 March 288.9 153 2.1 9.32 573 April 150.0 14 2.2 5.00 298 

May 12.8 1.5 .1 .41 25 

June 1,598.2 1,320 .1 53.3 3,170 

July 37,034.6 17,900 1.7 1,195 73,460 

August 32.4 5.0 .2 1.05 64 September 572.7 338 .1 19.1 1,140 

Water year 1947-48 40,277.1 17,900 0 110 79,900 

Peak discharge (base, 1,400 sec.-ft.).- June 26 (7 a.m.) 3,230 sec.-ft.; July 6 (11:45 p.m.) 

47,800 sec.-ft. Note.- No gage-height record Jan. 25 to Feb. 3, Sept. 2-23, 30; discharge interpolated, or computed 

on-WsTs of records for stations at Sterling City and San Angelo. Stage below crest of control May 18-31, June 16-25 and Aug. 25 to Sept. 1; flow is estimated seepage under dam. 
156 COLORADO RIVER BASIN 

North Concho River at San Angelo, Tex. 

Location.- Water-stage recorder above concrete dam, lat. ?1°27,56", long. 100°26,51", at 

Sixth Street Bridge in San Angelo, Tom Green County, 3* miles upstream from confluence 

with South Concho River. Datum of gage is-1,813.4 feet above mean sea level, datum of 

1929. Former gage at site 1.6 miles downstream at datum 13.02 feet lower. 

Drainage area.- 1,795 square miles, of which 123 square miles is probably noncontributing. 

Records available.- October 1915 to September 1931, July 1947 to September 1948. 

Averagedischarge.- 14 years (1916-27, 1929-31, 1947-48), 59.6 second-feet. t 

E remes.- 19477-Maximum discharge during period July to September, 9.0 second-feet 

Aug. 21 (gage height, 2.07 feet); no flow most of time. 

1947-48: Maximum discharge during water year, 33,700 second-feet July 7 (gage 

height, 18.30 feet); no flow at times. 

1915-31, 1947-48: Maximum discharge, about 47,000 second-feet June 13, 1930 (gage 

height, 22.52 feet, site and datum then in use); no flow at times. 

Flood of Sept. 17, 1936, reached a stage of 34.6 feet, from floodmarks (discharge, 

184,000 second-feet, by slope-area method). 

Remarks.- Records good. Diversions above station for irrigation. 

Revisions (water years).- W 568: 1916-22. 

Discharge, in second-feet, 1947-48 

1947 

Day Discharge Day Discharge Day Discharge Day Discharge 

Aug. 1 0 Aug. 17 0 Aug. 25 0

2 

3 

4 

5 

6 

7 

8 

00000000

Aug. 9 

10 0 18 0 26 0

11 0 19 0 27 0 

12 0 20 0 28 0 

13 0 21 3.1 29 0 

14 0 22 .6 30 0 

15 0 23 .2 31 0 

16 0 24 0 

1947-48 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May Juno July Aug. Sept. 

ega, 

00000000000 00000

. . . . 

W AO C/1 AN 

"! 

00000 00 22 0000 00000 00000 000000 

GDrOaDN Ts '"'1'1 • 00022 0000

0000 000000 

00000 00000

.N-0 ..N .0. .4 .-* 

•0 0 00000 0 0 NN ~r 

V. 

O .00000000t41 N 000000000 

11,o00 

21,900 

9.5 1.2 6.4 1.2 5.3 .9 4.1 .7 1.9 .7 

1.7 .5 1.5 .3 1.5 .2 1.5 0 1.5 0 

1 3.8 4.8 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 

5.3 36 4.4 15 19 8.0 648 6.4 

5.3 

3.0 1,630 1.9 227 1.5 110 1.4 

00000 00000 00000 

0!,?op0

W"-' 

1.4 0 1.5 0 1.1 0 .6 0 .4 0 

.3 0 .2 0 .1 0 .1 0 

94 .9 71 .7 52 .5 36 .5 28 .4 

22 .4 32 .4 17 .4 13 .3 .4 0 11 .2 

.7 0 11 .2 29 0 71 0 25 0 

5.3 .2 8.0 .1 7.1 .1 15 30 7.1 0 

9.5 1.8 6.4 0 6.4 2.3 8.0 0 4.4 1.6 7.1 0 2.3 .9 5.3 0 1.8 .5 4.8 0 ]

1.4

Peak discharge base 900 sec.-ft ).- Feb. 27 (12 30 a.m. 924 sec.-ft.. May 11 (5 a.m.) 1,530 sec.-ft.: May 26 6:30 a.m.) 5,270 sec.-ft : June 1 (12 m.)1,270 sec.-ft., June 26 (1 p.m.) 3,060

sec.-ft.: July 7 8:30 a.m.) 33,700 sec.-ft.: Sept. 22 (11:45 p.m.) 1,410 sec.-ft. 

Monthly. discharge, in second-feet, 1947-48 

Month Secondfoot-days Maximum Minimum Mean Runoff in 

acre-feet 

July 21-31, 1947 August 

September 

0 

3.9 

0 

0 

3.1 

0 

0 

0 

0 

0 

.13 

0 

0 

7.7 

0 The period - 7.7 

31 - 4.8 0 

October 1947 59.0 38 November 0 0 

100000 •000 00 

1.90 117 0 0 December 18.8 28 1.90 117 January 1948 0 0 0

February 444 363 15.3 881

March 207.5 71 6.69

April 42.8 30 1.43 85

May 92G.2 650 29.9 1,840

June 2,324.0 1,400 77.5 4,610

July 36,498.4 21,900 1,177 72,390

August 88.6 36 2.86 176

September 1,338.3 572 44.6 2,650

Water year 1947-48 41,987.6 21,900 0 115 83,280 

0 

412 
		

		

		

			

		

		

		

		

COLORADO RIVER BASIN lo7 

Brownwood Reservoir near Brownwood, Tex. 

Location.- Water-stage recorder, lat. 31°50,, long. 99°00,, at outlet structure for 

canal, just upstream from right end of dam on Pecan. Bayou, a quarter of a mile 

downstream from Jim Ned Creek, and 6 miles north of Brownwood, Brow:. County. Datum of 

gage is 0.5 foot below mean sea level, datum of 1929. Prior to May 13. 1948, staff 

gages at or near present site and to same datum, except water-stage re,order N07. 21, 

1944, to July 22, 1946. 

Drainage area.- 1.535 square miles. 

Records available.- July 1933 to May 1941, November 1944 to September 1948. 

Extremes.- 1947-48: Maximum contents observed during year, 135,100 acre-feet Jan. 14, 16 

(gage height, 1,423.1 feet); minimum observed, 106,900 acre-feet Dec. 5 (gage height, 

1,418.5 feet). 

1933-41, 1944-48: Maximum contents observed 185,400 acre-feet Sept. 10, 1935 (gage 

height, 1,429,4 feet); minimum observed, 11,900 acre-feet July 15, 1934 (gage height. 

1,389.5 feet). 

Remarks.- Reservoir first filled during flood of July 3, 4, 1932. Dam completed in 1933 

and operation began July 1933. Total capacity, 149,600 acre-feet (gage height, 1,425.1 

feet, crest of emergency spillway). Reservoir is formed by earthen-fill dam, 1,580 feet 

long Uncontrolled emergency spillway consisting of broad-crested weir 476 feet long 

located 800 feet to left of dam. Reservoir can be drained by two 12-foot (horseshoeshaped) reinforced concrete conduits with bottom of invert at gage height 1,330.0 feet. 

Water for Irrigation, municipal, and industrial use can be withdrawn through a o-foot 

circular concrete conduit with bottom at gage height 1,406.0 feet. Water used for 

Irrigation, municipal, and Industrial supply for of Browl:wJod. 

Cooperation.- Record of daily gage height furnished by Brown Co,nty Water improvement 

District. Capacity table furnished by Corps of Engineers. 

Capacity table (gage height, in feet, and contents, in acre-feet) (Prepared by Corps of Engineers from soundings by Soil Conservation Service to gage height 1.425.5 feet: above from plane table survey by Corps of Engineers) 

1,340 4 1,365 920 1,390 12.500 1,415 88,600 1,345 20 1,370 1,700 1.395 20.200 1,420 115.200 1.350 CO 1,375 2,900 1,400 31.500 1,425.1 (Spillway crest) 149.600 1,355 165 1,380 4.600 1.405 46.000 1.430 191.000 1.360 420 1.385 7,500 1,410 65,000 

Gage height and contents on days Indicated. 1933-41, 1944-48 

Change In contents Gage(ft= Contents Date during month (acre-feet) (acre-feet) 

July 1. 1933 1,408.3 57,800 -

July 31 1.406.5 51,000 -6.800 

Aug. SI 1,406.0 49,300 -1.700 

Sept.30 .1,405.5 47,600 -1,700 

Water year - - -

Oct. 1. 1933 1,405.5 47,600 -

Oct. 31 1,404.8 45,400 -2,200 

Nov. 30 1,404.5 44,400 -1.000 

Dec. SI 1.404.4 44,100 -300 

Calendar year - - -

Jan. 31, 1934 1,404.4 44.100 0 

Feb. 28 1,404.2 43,500 -600 

Mar. 31 1,406.1 49,600 +6,100 

Apr. 30 1,410.8 68,600 +19,000 

May 31 1,412.5 76,400 +7,800 

June 30 1,409.9 64,600 -11,800 

July 15 1,389.5 11,900 -

Aug.31 - - - Sept.30 - -

Water year - - -

Jan. 31, 1935 - -

Feb. 12 1,392.8 16,400 -

Apr. 1 1,392.2 15,500 -

Apr. 30 1.404.9 45,700 

May 31 1,421.8 126,300 +80,600 

June 30 1,424.8 147,300 +21,000 

July 31 1,422.4 130,300 -17,000 

Aug. 31 1,419.9 114,600 ' -15,700 

Sept.30 1,424.1 142,200 +27,600 

Water year - - -

Reading of Oct. 1. 
		

		

			

		

		

		

		

		

		

		

		

			

		

		

		

		

		

		

		

		

		

		

			

		

		

		

		

		

		

 

		

		

		

		

		

		

158 COLORADO MIEN BASIN 

Gage height and contents on days indicated of Brownwood Reservoir near Brownwood, Tex., 1933-41, 

Date 

Sept.30. 1135 

Oct. 31 

Nov. 30 

Dec. 31 

Calendar year 

Jan. 31, 1536 

Feb. 29 

Mar. 31 

Apr. 30 

May 31 

June 30 

July 31 

Aug. 31 

Sept.30 

Water year 1935-36 

)ct. 1, 1936 

)ct. 31 

lov. 30 

>ec. 31 

Calendar year 1536 

Ian. 31, 1937 

?eb. 28 

Oar. 31 

1pr. 30 

lay 31 

Tune 30 

Lug. 1 

Lug. 31 

Mpt.30 

Water year 1936-37 

Sept.30, 1537 

Oct. 31 

Nov. 30 

Dec. 31 

Calendar year 1937 

an. 31. 1938 

'eb. 28 

Mr. 31 

Apr. 30 

May 31 

une 30 

my 31 

Aug. 31

Sept 30 

Water year 1937-38 

ept.30, 1938 

Nct. 31 

ov. 30 

cc. 31 

Calendar year 1938 

an. 31, 1939 

eb. 28 

ar. 31 

Apr. 30 

ay 31 

une 30 

my 31 

Aug. 31 

Sept.30 

Water year 1938-39 

Sept.30. 1939 

Oct. 31 

Nov. 30 

ec 31 

Calendar year 1939 

an. 31, 1940 

eb. 29 

Sr. 1 

pr. 8 

ay 31 

une 17 

uly 31 

Aug. 18 

Sept.25 

Water year 

Reading of Oct. 1. 

1544-48--Continued 

Gag=ht 

1,424.1 

1.422.3 

1.419.2 

1.418.2 

-

1,418.0 

1,417.9 

1,417.5 

1,418.9 

1,421.1 

1,421.7 

1,423.2 

1.421.6 

.1,426.8 

-

1.426.8 

1,424.6 

1.422.1 

1,420.1 

-

1,418.6 

1,418.2 

1,418.2 

1,418.0 

1,417.5 

1,420.9 

1,420.8 

1,419.8 

1,419.5 

-

1,415.5 

1,419.7 

1,419.4 

1,415.8 . 

_ - -

1,420.0 

1,419.8 

1.419.9 

1,419.9 

1,417.9 

1,419.4 

1,425.2 

1,423.0 

1.420.6 

-

1.420.6 

1,420.9 

1,420.6 

1,420.4 

-

1,421.6 

1,421.4 

1,421.1 

1,421.1 

1,425.8 

1,424.9 

1,422.8 

1,422.5 

1.415.9 

-

1,415.9 

1,419.3 

1.419.0 

1,418.8 

-

1,418.5 

1,418.5 

1,418.5 

1,422.4 

- 1,425.3 

1,426.6 

1,422.2 

-

Contents 

(acre-feet) 

142,200 

129.600 

110,700 

105.300 

-

104,200 

103,700 

1Q1,600 

109,100 

121,800 

125,700 

135,800 

125,000 

162.800 

-

162.800 

145,900 

128,300 

115,800 

-

107,400 

105,300 

105,300 

104,200 

101.600 

120,600 

120,700 

114,100 

112,400 

112.400 

113,500 

111.800 

114,100 

-

115.200 

114,100 

114,600 

114.600 

103,700 

111.800 

150,300 

134,400 

118,800 

-

118,800 

120,600 

118,800 

117,600 

-

125,000 

123,800 

121,800 

121,800 

154,900 

148,100 

133.000 

133,700 

114,600 

-

114,600 

111,300 

109,600 

108,500 

-

106,900 

106,900 

106,900 

130,300 

151,100 

161,200 

129,000 

-

Change in contents 

during month 

(acre-feet) 

-12,600 

-18,900 

-5,400 

-

-1,100 

-500. 

-2.100 

+7.500 

+12,700 

+3,900 

+10,100 

-10,800 

+37,800 

+20.600 

- -16,900 

-17,600 

-12,500 

+10,500 

-8.400 

-2,100 

0 

-1,100 

-2,600 

+15,000 

-600 

-5,900 

-1,700 

-50.400 

- +1.100 

-1,700 

. +2,300 

-1,700 

+1,100 

-1.100 

+500 

0 

-10,100 

+8,100 

+38,500 

-15.500 

-15.600 

+6,400 

- +1,800 

-1,800 

-1,200 

+3.500 

+7,400 

-1,200 

-2,000 

0 

+33,100 

-6,800 

-15,100 

+700 

-19,100 

-4,200 

- -3,300 

-1,700 

-1,100 

-9,100 _ 

-1,600 

0 

-

-

-

-

-

-
		

			

		

		

		

		

		

			

		

		

		

		

			

		

		

		

		

		

			

		

		

		

		

		

		

		

		

			

		

		

		

		

JOLORADO RIVER BASIN 159 

Gage height and contents on days Indicated of Brownwood Reservoir near Brownwood, Tex., 1933-41, 1944-48--Continued 

Date Gag=ht Contents 

(acre-feet) 

Change in contents during month 

(acre-feet) 

Jan. 31. 1941 Feb. 23 Mar. 31 1,425.5 152,600 

Apr. 29 May 25 1,427.5 

1,426.0 171:n The period 

Sept.30, 1944 Oct. 31 Nov. 30 Dec 31 1.422.8 

1,422.3 133,000 

129,600 -3.400 

Calendar year 

Jan. 31, 1945 Feb. 18 Mar. 20 Apr. 30 May 31 June 30 

July 17 

Aug. 31 Sept.30 

1,424.7 

1,424.1 

1,424.7 

1,422.8 

1,423.2 

1,425.: 

146,600 

142,200 

146,600 

133,000 

135,800 

149,600 

+17,000 

+2.8()0 

Water year 

Oct. 29, 1945 Nov. 30 Dec. 31 

1.422.2 

1,421.6 

1,421.1 

129,000 

125,000 

121,800 -3.200 

Calendar year 1945 

Jan. 31, 1946 Feb. 28 Mar. 31 Apr. 30 May 3 June 30 

1,421.2 

1,421.3 

1,422.0 

1,422.1 

1,422.2 

122,500 

123,100 

127,600 

128,300 

129.000 

+700 

+600 +4,500 +700 

July 22 1,421.9 127:000 Aug. 31 Sept.30 

Water year 

Sept.30, 1946 

Oct. 31 Nov. 4 1,425.3 151,100 Jan. 1, 1947 1,423.5 138,000 

Calendar year 

Jan. 25, 1947 1,424.5 145,200 Feb. 28 Mar. 15 Apr. 30 May 17 June 30 

1,422.0 

1,422.5 

127:600 

131,000 

July 31 

Aug 31 Sept.30 

Water year 

Sept.30. 1947 

Oct. 16 1,418.8 108,500 Nov. 30 Dec 31 133,000 

Calendar year 

Jan. 31, 1948 1,422.0 127,600 -5,400 Feb. 28 1,421.9 127,000 -600 Mar. 31, 1,421.5 124,400 -2,600 Apr. 30 May 31 June 30 

1,421.5 

01,421.2 

01,421.4 

124,400 

122,500 

123,800 

0 -1,900 

+1.300 July 31 

Aug. 31 Sept.30 

01,421.7 

01,420.8 

01,420.9 

125,700 

120,000 

120,600 

+1,900 

-5,700 +600 

Water year 

•Estimated. 1 Gage height at 12 p.m. 
160 COLORADO RIVER BASIN 

Pecan Bayou at Brownwood, Tex. 

Location.- Water-stage recorder above spillway of city dam, lat. 31°44'10", long. 

9F5M8,30", at Gulf, Colorado & Santa Fe Railway bridge, 1 mile north of Brownwood, 

Brown County, 6 miles downstream from Salt Creek, and 10 miles downstream from Brownwood Reservoir. Datum of gage is 1,318.58 feet above mean sea level, datum of 1929. 

Drainage area.- 1,614 square miles. 

Records available.- May 1917 to June 1918, October 1923 to September 1948. 

Average discharge.- 23 years (1924-28, 1929-48), 190 second-feet. 

Extremes.- Maximum discharge during year, 1,710 second-feet Dec. 7 (gage height, 3.12 

feet); no flow Oct. 1 to Dec. 6. 

1917-18, 1923-48: Maximum discharge, 52,700 second-feet Oct. 14, 1930 (gage 

height, 16.92 feet), from rating curve extended above 38,000 second-feet; no flow at 

times. 

Maximum stage known, 21.7 feet in September 1900, from information by Gulf, Colorado 

Santa Fe Railway Co. Flood of July 3, 1932, probably the greatest known, reached 

a discharge of about 235,000 second-feet as it entered Brownwood Reservoir (computed 

from rate of change of contents in reservoir; data furnished by engineers of Brown 

County Water Improvement District No. 1). 

Remarks.- Records poor. Stage-discharge relation for low flows affected by occasional 

accumulation of drift on dam. Flow regulated by Brownwood Reservoir (see preceding 

page). Water is diverted at Brownwood Reservoir, 10 miles upstream, for irrigation 

and for municipal supply of City of Brownwood. Irrigation canal completed Apr. 9, 

1939. According to records furnished the State Board of Water Engineers by the 

Brown County Water Improvement District No. 1, 4,200 acres were irrigated during the 

year. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 0 11 1.9 2.0 0.7 0.7 0.5 158 0.4 0.3 2 0 1.1 2.5 1.3 .7 .6 .5 80 .4 .5 3 0 .6 2.5 1.1 • .7 .6 .5 7.8 .4 .3 4 0 .6 2.0 1.1 .7 .6 .5 6.4 .4 .3 5 0 .3 2.0 1.1 .7 .7 .5 5.1 .3 .3 

6 0 .6 2.0 1.6 .7 .6 .5 4.1 .3 .3 7 419 .4 2.0 2.0 .6 .6 .5 3.2 .3 .2 8 3.7 .6 2.0 1.1 .6 . .6 .5 2.3 .3 47 9 .9 .6 2.6 1.1 .6 .6 .5 1.7 .3 170 10 .4 .6 4.4 1.3 .7 6.5 .5 1.3 .3 3.0 

11 .1 .8 3.5 1.1 .6 99 .5 1.0 .3 .4 12 0 1.1 2.6 1.1 .6 6.8 .5 .6 .3 .2 13 0 .4 2.6 1.6 .6 1.5 .5 .5 .3 .2 14 0 .3 2.6 1.3 16 1.0 .5 .4 .3 .2 15 1.3 .4 2.6 1.3 121 .7 .5 .4 .3 .2 

16 2.9 .4 3.5 1.3 125 .6 .5 .4 .3 .2 17 1.0 .3 2.6 .9 117 .5 .5 .4 .3 .2 18 .7 .3 3.5 .9 10 .6 .5 .4 .3 .2 19 .5 .7 2.0 1.1 1.5 .6 .5 .4 .3 .2 20 .5 .9 1.3 1.1 1.2 .6 .5 .4 .3 .2 

21 .3 .9 1.1 1.3 1.0 .5 .5 .4 100 .2 22 .3 1.2 .9 1.1 .8 .6 .5 .4 134 .2 23 .3 1.0 1.3 .9 1.2 .5 .5 .4 134 .2 24 .3 .6 1.3 .9 1.2 .5 .5 .4 87 .2 25 .3 .6 4.4 .9 4.3 .5 .5 .4 3.1 .2 

26 .7 .8 4.4 .9 2.5 2.7 346 .4 .7 .2 27 1.4 .9 20 .9 1.5 7.2 254 .4 .7 .2 28 2.0 1.1 5.4 .8 1.0 .6 158 .4 .3 .2 29 2.0 1.1 2.6 .8 .8 .5 158 .4 .3 .2 30 .7 1.8 .8 .1 .5 158 .4 .3 .2 31 2.0 1.9 .7 .5 .4 .3 

Second- Runoff in Month Maximum Minimum Mean fpot-days acre-feet 

October 0 0 0 0 0 November 0 0 0 0 0 December 441.3 419 0 14.2 875 

Calendar year 1947 6,222.3 419 0 17.0 12,340 

January 33.9 11 .3 1.09 67 February 92.1 20 .9 3.18 183 March 35.4 2.0 .7 1.14 70 April 415.2 125 .6 13.8 824 May 138.6 99 .5 4.47 275 June 1,086.5 346 .5 36.2 2,160 July 279.2 158 .4 9.01 554 August 467.1 134 .3 15.1 926 September 226.4 170 .2 7.55 449 

Water year 1947-48 3,215.7 419 0 8.79 6,380 Note.- No gage-height record June 26 to July 25; discharge computed on basis of partial record Jul7W-7g.and record of water released from Brownwood Reservoir. 
		

		

		

		

		

COLORADO RIVER BASIN 161 

Hords Creek Reservoir near Valera, Tex. 

Location.- Water-stage recorder and wire-weight gage, lat. 31°51'00", long. 99°33'35", 

at Hords Creek dam on Hords Creek, 5.3 miles northwest of Valera, Coleman County, 

and 8.8 miles west of Coleman. Datum of gage is at mean sea level, datum of 1929. 

Drainage area.- 48 square miles. 

Records available.- April to September 1948. 

Extremes.- Maximum contents observed during period, 1,470 acre-feet July 31 to Aug. 3 

(elevation, 1,875.1 feet). 

Remarks.- Reservoir is formed by a rolled-fill earthen type dam 6,284 feet long; gates 

closed Apr. 7, 1948; dam completed June 10, 1948. Reservoir is operated for flood 

control and municipal supply for city of Coleman. 

Outlet works consist of three concrete conduits, two of which are controlled by 

Pekdul slide gates at elevation 1,856.0 feet. The third conduit (service spillway) 

is uncontrolled. In addition, there is a 500-foot emergency earthen spillway located 

to the right of the dam. Capacity, 25,310 acre-feet at elevation 1,920.0 feet (top 

of emergency spillway) and 8,635 acre-feet at elevation 1,900.0 feet (top of service 

spillway). Water can be withdrawn for municipal use down to elevation 1,876.5 feet. 

Dead storage is negligible. 

Capacity table (elevation in feet, and capacity, in acre-feet; 

(Prepared by Corps of Engineers from plane table survey) 

1,850 0 1,857 42 1,868 563 1,890 4,630 1,925 32,480 1,851 1.0 1,858 62 1,870 776 1,894 5,990 1,930 41,480 1,852 

1,853 

1,854 

3.0 

6.0 

11 

1,859 

1,860 

1,862 

88 

118 

194 

1,872 

1,874 

1,878 

1,030 

1,310 

1,940 

1,899 

1,904 

1,910 

8,140 

10,900 

15,150 

1,935 

1,940 52,630 

66,020 

1,855 18 1,864 286 1,882 2,650 1,915 19,650 1,856 27 1,866 401 1,886 3,530 1,920 25,310 

Monthly elevation and contents April to September 1948 

Change in contents 

Date Elevation Contents during month (feet) (acre-feet) (acre-feet) 

Jan. 31 - - Feb. 29 - - Mar. 31 - - - Apr. 30 190 +190 May 31 (a) a 167 -23 June 30 1,861.4 170 +3 July 31 1,875.1 1,470 +1,300 Aug. 31 1,874.2 1,340 -130 Sept.30 1,873.6 1,250 -90 

The period 1948 - - +1,250 

a No gage-height record; contents interpolated. 

Note.- Elevations at various times during day. 
162 COLORADO RIVER BASIN 

San Saba River at Menard, Tex. 

Location.- Water-stage recorder, lat. 30°55, , long. 99°47,, at bridge on U. S. Highway 

83 in Menard, Menard County, 0.7 mile downstream from Las Moras Creek. Datum of 

gage is 1,863.05 feet above mean sea level, datum of 1929. 

Drainage area.- 1,151 square miles. 

Records available.- September 1915 to September 1948. 

Average discharge.- 33 years, 71.0 second-feet. 

Extremes.- Maximum discharge during year, 2,390 second-feet Sept. 9; maximum gage height, 

8.15 feet Aug. 1; no flow Aug. 14-28. 

1915-48: Maximum discharge, 117,000 second-feet July 23, 1938 (gage height, 22.2 

feet, present site and datum, from floodmark), from rating curve extended above 60,000 

second-feet on basis of slope-area determinations at gage heights 21.0 and 22.2 feet; 

no flow at times caused by diversions to Noyes Canal. 

Maximum stage known, 23.3 feet June 5 or 6, 1899, present site and datum, from 

information by local residents. 

Remarks.- Records good. Low flow during irrigation season regulated by diversions to 

---Froyes Canal, 4 miles above Menard. About 4,300 acres above and 7,700 acres below 

gage have been declared irrigated (see records for Noyes Canal at Menard). 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. may June July Aug. Sept. 

1 8.8 6.6 7.9 9.5 10 32 7.0 7.0 3.4 16 174 .6 2 8.8 6.3 7.9 9.9 10 30 5.7 6.3 1.7 15 16 7 

3 8.5 6.3 8.5 9.5 11 30 5.4 6.3 2.2 18 1.7 .9 

4 8.2 5.7 10 9.5 12 30 5.4, 6.3 2.4 18 1.3 1.3 S 8.2 3.8 13 9.5 12 30 5.4 6.0 2.2 20 1.4 1.6 

6 7.9 5.1 11 9.9 11 32 6.6 5.7 2.4 20 .8 1.0 7 7.0 5.7 18 9.9 12 31 7.5 5.7 2.0 22 .8 .8 8 7.9 5.1 17 11 12 32 6.3 5.7 1.8 22 .9 1.1 9 11 5.4 14 11 11 30 6.0 5.4 1.9 19 .7 736 10 7.6 6.0 12 11 11 30 5.7 4.8 3.8 17 .5 95 

11 7.6 6.6 11 10 10 30 5.1 5.1 3.8 15 .5 32 12 7.6 6.6 10 11 10 31 5.1 6.6 3.2 16 .4 16 13 7.0 6.3 10 11 10 31 6.3 7.0 2.6 15 .4 10 14 6.6 7.6 10 10 9.9 31 4.3 7.3 1.9 7.3. 0 10 15 6.6 8.2 10 10 11 32 4.0 7.0 1.5 5.4 0 18 

16 6.6 7.9 10 10 31 32 3.6 6.6 1.9 2.2 0 19 17 6.6 8.5 10 11 32 26 5.5 6.3 2.8 2.0 0 18 18 7.0 9.5 10 11 32 8.5 6.0 6.3 2.8 3.4 0 18 19 7.3 9.9 10 9.9 31 5.1 5.3 5.1 2.2 3.6 0 19 20 7.3 9.2 9.9 10 30 4.8 d6.0 3.0 1.9 3.4 0 20 

21 7.3 8.2 9.2 11 28 6.3 6.0 8.4 1.8 3.2 0 21 22 7.3 8.5 9.2 11 31 5.4 7.6 15 1.2 1.9 0 43 23 5.7 8.5 9.2 10 30 4.3 9.5 13 1.1 1.0 0 113 24 4.8 7.9 9.2 9.9 30 4.8 10 4.3 12 .9 0 43 25 6.3 7.9 9.2 9.9 32 5.1 21 2.6 7.3 1.3 0 25 

26 7.0 7.3 9.2 10 35 5.7 14 5.4 8.2 1.4 0 19 27 7.9 7.6 9.5 10 38 7.3 10 5.4 15 1.4 0 16 28 7.9 7.3 9.2 10 35 7.3 8.8 4.0 25 1.0 0 16 29 7.6 7.3 9.5 9.9 32 6.3 8.5 3.2 19 .7 .2 14 30 7.0 7.3 8.5 10 4.6 7.3 3.0 15 .7 .3 13 31 7.0 8.8 10 5.7 3.4 .2 .4 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 229.9 11 4.8 7.42 456 November 214.1 9.9 3.8 7.14 425 December 320.9 18 7.9 10.4 636 

Calendar year 1947 7,036.3 1,280 3.2 19.3 13,950 

January 316.3 11 9.5 10.2 627 February 609.9 38 9.9 21.0 1,210 March 601.2 32 4.3 19.4 1,190 April 214.7 21 3.6 7.16 426 May 187.2 15 2.6 6.04 371 June 154.0 25 1.1 5.13 305 July 274.0 22 .2 8.84 543 August 200.3 174 0 6.46 397 September 1,342.0 736 .6 44.7 2,660 

Water year 1947-48 4,664.5 736 0 12.7 9,250 

Peak discharge (base, 670 sec.-ft.).- Aug. 1 (5:30 p.m.) 2,240 sec.-ft.; Sept. 9 (7:15 a.m.) 2,390 se-Cr. 

d Doubtful gage-height record; discharge computed on basis of records for Noyes Canal. 
- - 

COLORADO RIVER BASIN 163 

San Saba River at San Saba, Tex. 

Location.- Water-stage recorder, lat. 31°12'10", long. 98°42'15", at bridge on San SabaChadwick Mill Highway, three-quarters of a mile northeast of San Saba, San Saba County, 

and 15 miles upstream from mouth. Datum of gage is 1,153.3 feet above mean sea level, 

datum of 1929. 

Drainage area.- 3,046 square miles. 

Records available.- August 1930 to Septembgr 1948. December 1904 to December 1906 and 

September 1915 to August 1930 at site 41- miles upstream. 

Average discharge.- 33 years (1915-48), 270 second-feet. 

Extremes.- Maximum discharge during year, 4,660 second-feet May 11 (gage height, 19.99 

feet); minimum, 17 second-feet June 23 (gage height, 3.00 feet). 

1904-6, 1915-48: Maximum discharge, 203,000 second-feet July 23, 1938 (gage 

height, 45.18 feet, from floodmarks at highest stage known), by slope-area method; no 

flow Aug. 9, 10, 1918, July 17-20, 31, 1930. 

Maximum stage known prior to 1938, 42.6 feet June 6, 1899, from information by 

local resident. 

Remarks.- Records good. Diversions above station for irrigation and municipal uses affect 

low !low. 

Revision (water years).- 44 458: 1915, 1916, W 718: 1922. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May, June July Aug. Sept. 

1 24 25 51 66 63 83 37 55 241 58 60 23 2 25 25 52 67 64 78 37 52 130 58 1,360 23 3 24 25 60 63 66 75 37 46 83 68 286 22 4 24 27 72 60 66 73 38 44 60 105 106 22 5 24 30 66 59 66 69 39 43 49 323 63 22 

6 24 30 64 61 64 68 39 281 41 170 56 22 7 24 30 322 63 63 70 40 82 37 87 54 21 8 24 28 352 61 62 68 39 46 34 89 63 20 9 26 29 276 59 60 67 37 38 32 79 37 634 10 28 32 164 56 58 66 37 35 30 67 33 1,200 

11 32 33 119 55 59 65 36 2,760 30 114 30 452 12 51 34 95 54 60 65 47 1,530 26 382 28 252 13 38 34 86 52 60 65 47 258 25 155 25 163 14 32 39 78 52 60 64 39 151 25 91 24 118 15 29 49 77 52 59 65 38 105 25 61 23 89 

16 28 52 76 53 60 63 36 82 23 50 23 70 17 29 48 72 52 61 61 34 67 22 43 23 60 18 37 47 69 52 61 60 34 59 22 38 23 52 19 31 48 68 52 62 61 34 54 22 34 23 50 20 28 48 68 53 60 59 33 50 22 33 23 44 

21 26 48 66 55 56 58 33 46 22 30 23 42 22 25 49 65 57 58 76 33 44 20 28 22 43 23 27 59 62 56 61 • 64 94 42 19 26 22 498 24 27 65 64 56 63 57 47 41 23 25 22 317 25 26 64 64 54 377 52 280 39 118 25 22 136 

26 26 53 64 55 124 50 202 43 1,270 23 25 111 27 27 50 64 58 115 46 176 42 297 23 32 95 28 27 49 65 58 105 43 112 39 175 23 30 76 29 28 51 65 55 88 42 76 38 116 23 25 62 30 27 51 65 60 42 62 38 78 22 23 55 31 27 68 60 - 39 699 22 23 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 875 51 24 28.2 1,740 November 1,252 65 25 41.7' 2,480 December 2,999 352 51 96.7 5,950 -

Calendar year 1947 30,173 -

1,550 22 82.7 59,860 

January 1,766 67 52 57.0 3,500 February 2,281 377 56 78.7 4,520 March 1,914 83 39 61.7 3,800 April 1,873 280 33 62.4 3,720 May 6,949 2,760 35 224 13,780 June 3,117 1,270 19 104 6,180 July 2,375 382 22 76.6 4,710 August 2,632 1,360 22 84.9 5,220 September 4,794 1,200 20 160 9,510 

Water year 1947-48 32,827 2,760 19 89.7 65,110 

Peak discharge (base, 4,500 sec.-ft.).- May 11 (9 p.m. 4,660 sec.-ft. 
164 COLORADO RIVER BASIN 

Noyes Canal at Menard, Tex. 

Location.- Water-stage recorder, lat. 30°55., long. 99°47., at intersection of Canal and 

Gay streets in Menard, Menard County, 4 miles downstream from head gates. Datum of 

gage is 1,878.1 feet above mean sea level, datum of 1929. 

Records available.- March 1924 to September 1948. 

Average discharge.- 24 years (1924-48), 14.8 second-feet. 

Extremes.- Maximum daily discharge during year. 22 second-feet Feb. 3; maximum gage height, 

3.10 feet Apr. 24 (affected by local runoff); no flow at times. 

1924-48: Maximum daily discharge (exclusive of times canal submerged by waters of 

San Saba River), 50 second-feet Apr. 15, 1925 (probably affected by local runoff between 

point of diversion and station); no flow at times. 

Remarks.- Records good. Discharge represents flow diverted from San Saba River not including local runoff between point of diversion and station. Canal diverts water from right 

bank of.San Saba River 4 miles above Menard for irrigation near Menard; 10 acres irrigates from canal above station. 

Monthiy discharge, in second-feet, water year October 1947 to September 1948 

Runoff in Month Maximum Minimum Mean acre-feet 

October 15 10 12.7 781 November 19 14 16.7 992 December 21 17 18.6 1,140 

Calendar year 1947 28 0 15.8 11,420 _ 

January 

February 

March 

20 

22 

19 

16 

o 

0 

18.7 

9.90 

6.64 

1,150 569 

408 April 18 14 16.4 974 May 

June 16 14 .8 

0 12.2 9.29 749 552 July 

August 

September 

14 

14 

15 

0 

5.8 

0 

5.03 

9.14 

5.90 

309 

562 

351 

Water year 1947-48 22 0 11.8 8,540 
- - - -

165 COLORADO RIVER BASIN 

Brady Creek at Brady, Tex. 

Location.- Water-stage recorder, lat. 31°08.15", long. 99°19.55", just upstream from bridge ---51ff-Wth Bridge Street in Brady, McCulloch County, and 0.4 mile downstream from Live Oak 

Creek. Datum of gage is 1,646.50 feet above mean sea level, datum of 1929. 

Drainage area.- 575 square miles. 

Records available.- May 1939 to September 1948 

Extremes.- Maximum discharge during year, 6,110 second-feet May 30 (gage height, 12.80 

feet); no flow at times. 

1939-48: Maximum discharge, 13,900 second-feet Apr. 27, 1941 (gage height, 16.81 

feet), from rating curve extended above 8,000 second-feet; no flow at times. 

Maximum stage known, 29.1 feet July 23, 1938, present site and datum (discharge at 

site 5 miles downstream, 86,000 second-feet, by slope-area method). 

Remarks.- Records good. No diversion above station. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1"! 

00 000 0 0000 

000 00 000000 000 ., 000 

00000 00000 100 000 0000c 00000 000

W WWW WM. ti 

.. 

Ch .3 NN 

f+N m 10 

W 000 0000 0 00000 000

c9"Yr! 

OO r1 N .-1 00000000000000000 

13 

19 

1.6 

.4 

.? 

.1 

.1 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

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0 

0 

0 

cs '"11 00000 000Z, 0 0 0000000000 000 00 1 

1 

2 

3 

4 

5 

0.2 0 0.2 .20 .2 .2 0 .1 .1 0 .1 .1 0 .1 

n N N "9 ncvvs ,'c' ' cv.vv?.? 00000 

6 .1 0 .1 7 .1 0 .1 8 .1 0 .2 9 .1 0 .2 10 .1 0 .2 ► 

11 .2 12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

.1 0 .1 0 .1 .1 0 .1 .1 0 .1 

.1 0 .1 

.1 0 .1 

.1 0 .1 

.1 0 .1 .1 0 .1 .1 0 .1 

0 0 .1 0 0 .1 0 0 .1 0 0 .1 0 .4 .1 

26 0 .3 .1 27 0 .2 . .1 28 0 .4 .1 29 0 .2 .1 30 0 - 0 31 0 - 0 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet I 1 II .&

"1-

3 Im 1 W_ 

October _

0 0 0 0 

0 

694 

3,480 

November 0 0 0 December 350.1 324 0 

Calendar year 194/ 1,756.5 715 0 - - - - 0 

January 2.3 .2 February 1.5 .4 0 March 3.5 .2 0 6.9 April 1.8 1.5 0 3.6 May 1,294.2 1,250 0 2,570 June 18.9 10 0 37 July 37.4 32 0 74 August 34.4 19 0 68 September 28.9 27 0 57 

Water year 1947-48 1,773.0 1,250 0 4.84 3,520 

Peak discharge (base, 2,400 sec.-ft.).- May 30 (5 a.m.) 6,110 sec.-ft. 

a No gage-height record; discharge computed on basis of recorded range in stage and engineer's 

notes. 

4.6 

3.0 
166 COLORADO RIVER BASIN 

North Llano River near Junction, Tex. 

Location.- Water-stage recorder, lat. 30°30, , long. 99°47,, about 1,000 feet upstream from 

- Us of old Wilson Dam, 3 miles northwest of Junction, Kimble County, and 4 miles upstream from confluence with South Llano River. Datum of gage is 1,699.9 feet above mean 

sea level, datum of 1929. 

Drainage area.- 914 square miles. 

Records available.- September 1915 to September 1948. 

Average discharge.- 33 years, 71.6 second-feat. 

Extremes.- Maximum discharge during year, 38,300 second-feet June 24 (gage height, 16.77 

feet); minimum, 1.8 second-feet June 16-18, 21-23. 

1915-48: Maximum discharge, 94,800 second-feet Sept. 16, 1936 (gage height, 29.2 

feet, present site, based on gage-height relation curve), by slope-area method; no flow 

at times. 

Remarks.- Records good except those above 4,000 second-feet, which are fair. Diversions 

for irrigation materially reduce low flow. 

Revisions (water years).- W 568: 1915, 1918-20, 1922, W 763: 1923(M). 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 2.3 8.2 13 16 13 14 8.8 13 12 117 45 15 2 2.3 8.2 13 16 14 13 8.8 11 10 109 39 14 3 2.0 8.2 14 17 14 12 8.8 11 9.5 101 34 14 4 2.0 8.2 15 17 13 13 9.5 9.5 8.2 94 30 13 5 2.1 8.2 15 16 13 13 9.5 8.2 7.2 922 28 13 

6 2.1 8.2 15 16 13 13 9.5 7,7 7.2 752 28 12 7 2.5 8.2 18 16 13 13 8.8 7.2 6.8 532 27 12 

8 2.8 8.2 22 17 13 13 8.8 7.2 5.4 266 25 56 9 2.8 8.8 26 17 13 14 8.8 7.2 4.6 173 24 834 

10 2.5 8.8 22 17 13 14 8.8 6.8 3.8 131 24 74 

11 2.5 8.8 21 17 12 13 8.8 110 3.8 145 23 46 

12 2.8 8.8 20 17 13 13 8.2 245 3.5 107 21 36 13 2.5 10 18 17 13 14 9.5 71 3.3 96 21 30 

14 2.1 11 18 16 13 14 8.8 44 2.8 87 20 26 

15 2.5 11 20 16 13 13 9.5 34 2.1 78 19 24 

16 2.5 11 20 15 13 13 9.5 26 2.1 72 19 24 

17 2.3 13 18 15 12 12 9.5 23 1.8 68 19 24 

18 2.3 14 17 15 12 12 9.5 18 2.1 62 19 24 

19 2.3 14 18 15 12 12 8.8 17 2.1 57 18 23 

20 2.3 14 17 15 12 11 8.2 15 2.1 54 18 22 

21 2.1 14 17 15 11 15 8.2 12 2.0 50 17 20 

22 2.1 15 17 15 12 15 9.4 11 1.8 48 16 47 

23 2.3 15 17 14 12 11 14 10 2.0 46 16 98 

24 2.3 14 17 14 13 11 12 9.5 12,500 42 15 54 

25 2.8 13 17 14 13 11 47 35 5,930 41 15 41 

26 41 13 17 14 14 10 24 46 2,310 39 15 33 

27 21 13 17 14 16 9.5 20 26 941 37 15 30 

28 14 13 17 14 15 9.5 17 21 284 36 14 28 

29 11 13 17 14 15 9.5 15 17 186 34 14 27 

30 9.5 13 16 14 - 8.8 14 15 145 32 15 26 

31 8.2 16 14 8.8 - 13 30 16 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 163.8 41 2.0 5.28 325 November 334.8 15 8.2 11.2 664 December 545 26 13 17.6 1,08C 

Calendar year 1947 9,382.5 1,210 2.0 25.7 18,61C 

January 479 17 14 15.5 95C February 378 16 11 13.0 75C March 378.1 15 8.8 12.2 750 April 361.0 47 8.2 12.0 716 May 907.3 245 6.8 29.3 1,800 June 22,402.2 12,500 1.8 747 44,430 July 4,458 922 30 144 8,840 August 669 45 14 21.6 1,330 September 1,740 834 12 58.0 3,450 

Water year 1947-48 32,816.2 12,500 1.8 89.7 65,080 

Peak discharge (base, 1,200 sec.-ft.).- June 24 (9 p.m.) 38,300 sec.-ft.; June 26 (10 a.m.) 3,920 sec.-ft.; July S 3:30 p.m.) 2,200 sec.-ft.; Sept. 9 (4:30 a.m.) 5,220 sec.-ft. 
		 		

		

COLORADO RIVER BASIN 167 

Llano River near Junction, Tex. 

Location.- Water-stage recorder, lat. 30°30', long. 99°44', 250 feet north of old Kerrville-Junction road, about half a mile downstream from point where slough diverts floodwater from main channel, 3 miles east of Junction, Kimble County, 4 miles downstream 

from confluence of North Llano and South Llano Rivers and 4t miles upstream from Johnson 

Fork. Datum of gage is 1,630.32 feet above mean sea level, datum of 1929. An auxiliary 

water-stage recorder at site 5,335 feet upstream at datum 6.00 feet higher, is used in 

computing discharge of major floods. 

Drainage area.- 1,762, square miles. 

Records available.- September 1915 to September 1948. 

Average discharge.- 33 years, 215 second-feet. 

Extremes.- Maximum discharge during year, 122,000 second-feet June 24 (gage height, 29.50 

feet, auxiliary gage); minimum, 26 second-feet June 21-23. 

1915-48: Maximum discharge, 319,000 second-feet June 14, 1935 (gage height, 43.3 

feet, present site and datum, from floodmarks; 41.4 feet, auxiliary gage, from floodmarks), by slope-area method; minimum, 13 second-feet Aug. 23-28, 1918. 

Remarks.- Records good. Small diversions above station for irrigation. Discharge June 24-

29, July 5, 6 computed from auxiliary water-stage recorder. 

Revisions.- W 568: 1915, 1916, 1918-20, 1922, drainage area. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 34 42 53 57 59 57 47 40 61 568 186 91 2 33 42 53 57 59 57 47 40 59 463 188 88 3 33 42 53 57 61 57 47 40 55 415 170 88 4 34 44 55 57 63 57 47 39 51 370 161 88 5 34 44 55 57 63 57 47 39 47 13,500 157 85 

6 34 44 55 57 63 57 45 38 45 f4,160 148 85 7 34 45 61 57 63 55 45 38 44 1,440 144 82 8 35 45 68 57 63 55 45 36 40 784 140 94 9 38 45 68 57 63 55 44 36 36 530 135 1,040 10 36 45 63 57 61 57 44 35 36 444 131 140 

11 36 47 61 55 61 55 42 99 35 846 127 144 12 36 47 59 55 61 55 42 460 35 456 127 119 13 36 49 57 55 57 55 45 224 35 392 123 112 14 36 51 57 55 57 55 45 161 34 360 115 108 15 36 51 59 53 57 55 47 131 33 338 115 104 

16 35 51 57 53 57 53 45 115 31 312 112 104 17 35 57 59 55 57 51 44 104 30 297 108 101 18 36 59 57 55 57 53 40 91 29 277 104 101 19 36 59 57 57 57 51 39 85 29 262 101 101 20 36 57 59 57 57 ' 51 38 79 29 253 101 98 

21 36 55 59 57 57 55 38 74 28 243 98 94 22 36 57 59 57 57 55 39 68 28 233 98 249 23 36 57 57 57 57 51 42 63 28 206 94 384 24 38 57 57 57 57 49 42 61 27,600 215 94 215 25 38 55 57 57 57 49 69 66 45,100 206 94 170 

26 53 57 57 59 59 51 51 113 9,680 197 94 148 27 47 55 57 59 61 51 49 88 f4,990 192 94 140 28 45 57 57 59 63 47 47 82 1,290 188 91 131 29 44 57 57 59 63 47 44 76 2,440 183 91 127 30 44 57 57 59 45 42 71 1,040 174 91 123 31 42 57 59 - 45 66 - 166 91 -

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 1,162 53 33 37.5 2,300 

November 1,530 59 42 51.0 3,030 December 1,797 68 53 58.0 3,560 

.., Calendar year 1947 25,547 _ 996 33 70.0 50,660 

January 1,759 59 53 56.7 3,490 February 1,727 63 57 59.6 3,430 March 1,643 57 45 53.0 3,260 April 1,348 69 38 44.9 2,670 May 2,758 460 35 89.0 5,470 June 93,018 45,100 28 3,101 184,500 July 28,670 13,500 166 925 56,870 August 3,723 188 91 120 7,380 September 4,754 1,040 82 158 9,430 

Water year 1947-48 143.889 45,100 28 393 285,400 

Peak discharge (base, 2,100 sec.-ft.).- June 24 (10:30 p.m.)122 000 sec.-ft.; June 29 (9:30 a.m. 

4,300 sec.-ft.; July 5- (12 m.) 36,800 sec.-ft.; Sept. 9 (5:30 a.m. 4,500 sec -ft. f Computed on basis of partly estimated gage-height record. 

905771 0 - 50 - 12 
168 COLORADO RIVER BASIN 

Llano River at Llano, Tex. 

Location.- Water-stage recorder, lat. 30°45', long. 98°40', in Llano, Llano County, 0.4 

mile downstream from bridge on State Highway 16 and 7 miles upstream from Little Llano 

River. Datum of gage is 970.0 feet above mean sea level, datum of 1929. 

Drainage area.- 4,000 square miles. 

Records available.- September 1939 to September 1948. 

Extremes.- Maximum discharge during year, 108,000 second-feet June 25 (gage height, 22.90 

feet, from floodmark); minimum daily, 10 second-feet June 22, 23. 

1939-48: Maximum discharge, that of June 25, 1948; minimum daily, 3.0 second-feet 

Aug. 21-29, 1946. 

Maximum stage known, 41.5 feet June 14, 1935, from information by local resident. 

Remarks.- Records fair except those for June 19-24, which are poor. Low flow regulated 

-- F5776wer plant half a mile upstream. No large diversions above station. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 28 42 66 81 80 136 58 76 79 1,540 177 

2 22 35 58 70 92 100 50 61 71 1,020 323 

3 22 45 56 70 92 89 46 46 52 1,020 279 

4 28 35 74 70 100 74 50 48 54 1,120 223 

5 17 31 65 72 98 82 54 52 46 1,020 202 

6 32 38 71 76 92 70 50 35 43 15,900 193 

7 23 38 76 72 94 77 52 35 46 4,310 164 

8 24 30 78 71 92 68 50 40 34 2,070 152 

9 27 38 84 /2 99 78 52 24 31 1,230 147 

10 32 37 106 67 80 70 52 37 g20 950 140 

11 50 38 103 78 87 76 44 688 40 1,060 128 

12 50 38 121 70 88 70 48 1,930 29 1,060 128 

13 48 44 86 75 77 73 48 682 34 950 124 

14 28 49 57 70 88 68 55 484 41 642 107 

15 17 49 88 76 84 72 42 387 g18 542 105 

16 29 54 84 65 79 68 72 271 g16 482 102 

17 33 54 88 70 82 71 48 201 g16 397 104 

18 26 64 74 66 81 62 46 155 31 361 100 

19 30 58 79 80 83 73 51 114 913 327 95 

20 22 72 67 64 62 60 42 98 all 293 92 

21 26 78 73 81 88 76 42 94 all 281 90 

22 28 98 68 74 84 79 41 83 d10 265 86 

23 28 81 68 82 82 78 82 65 d10 257 84 

24 33 94 74 76 80 141 86 64 d12 249 80 

25 31 103 68 80 760 125 323 54 54,900 245 84 

26 20 80 70 76 291 87 749 76 13,100 229 454 27 32 76 68 80 218 80 407 231 14,400 216 163 

28 29 76 67 72 145 62 233 199 4,250 205 96 

29 33 60 80 73 122 60 122 169 1,770 196 82 

30 34 68 69 72 - 68 88 110 2,560 189 86 

31 35 - 70 81 - 60 84 185 80 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 917 50 17 29.6 1,820 November 1,703 103 30 56.8 3,380 December 2,356 121 56 76.0 4,670 

Calendar year 1947 64,209 5,410 14 176 127,400 

January 2,282 82 64 73.6 4,530 February 3,600 760 62 124 7,140 March 2,453 141 60 79.1 4,870 April 3,183 749 41 106 6,310 May 6,693 1,930 24 216 13,280 June 91,748 54,900 10 3,058 182,000 July 38,811 15,900 185 1,252 76,980 August 4,470 454 80 144 8,870 September 6,898 1,350 58 230 13,680 

Water year 1947-48 165,114 54,900 10 451 327,500 

Peak discharge (base; 8,500 sec.-ft.).- June 25 (10 a.m.) 108,000 sec.-ft.; July 6 (3:30 a.m.) 30,700 sec.-ft. a No gage-height record; discharge computed on basis of records for station near Junction. 

d Doubtful gage-height record; discharge computed as explained in footnote a. 

g Computed from graph based on gage readings. 

Note.- For periods Oct. 1 to Feb. 25, Feb. 28 to Apr. 25, Apr. 29 to May 11, May 18 to June 9, 

JuTe-TT-14, 18, power-plant regulation above station caused stage to fall below intakes of each day; 

discharge computed on basis of partly estimated gage-height record. 

=!, 41)0 MW V.70 NOONO 00 ,04,0 3, OV VOM 

-"22 r,f3= 2"

"' 
COLORADO RIVER BASIN 169 

Pedernales River near Johnson City, Tex. 

Location.- Water-stage recorder, lat. 30°181 , long. 98°24., at bridge on U. S. Highway 281, 1.5 miles north of Johnson City, Blanco County, and 1.9 miles downstream from 

Buffalo Creek. Datum of gage is 1,096.6 feet above mean sea level, unadjusted. Drainage area.- 947 square miles. 

Records available.- May 1939 to September 1948. 

Extremes.- Maximum discharge during year, 8,380 second-feet Apr. 13 (gage height, 8.78 

feet); minimum, 0.8 second-foot Aug. 24 (gage height, 1.96 feet). 

1939-48. Maximum discharge, 104,000 second-feet Aug. 30, 1944 (gage height, 26.10 

feet, from recorder at upstream side of right bridge pier, affected by draw-down; maximum gage height, 27.6 feet, from floodmark on staff gage 50 feet upstream and 300 feet 

to right of recorder), from rating curve extended above 42,000 second-feet by logarithmic plotting; minimum discharge, that of Aug. 24, 1948. 

Maximum stage known, about 33 feet in July 1869, from information by local residents. 

Remarks.- Records excellent. No diversion above station. 

Discharge, in second-feet. water year October 194' to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 8.9 9.8 18 21 26 42 24 40 12 13 32 2.7 

2 8.9 9.4 18 23 35 38 26 35 11 41 129 2.2 

3 8.9 9.8 20 23 38 35 24 32 10 68 59 2.1 

4 8.9 9.8 343 23 38 32 23 28 9.8 173 23 2.1 

5 8.9 9.8 81 23 36 30 21 25 8.9 145 12 2.0 

6 9.4 10 36 21 40 30 21 28 8.0 168 9.4 1.5 

7 9.4 9.8 28 21 43 30 20 21 7.4 58 7.7 1.4 

8 9.4 10 26 23 42 30 20 20 6.8 48 6.2 1.3 9 10 10 26 23 38 33 19 19 6.5 29 5.0 2.6 

10 10 11 25 21 36 35 25 18 6.5 31 4.0 5.3 

11 11 12 23 23 33 43 25 1,210 6.8 251 3.6 11 

12 10 13 21 23 30 36 20 423 7.4 4r7 3.0 9.4 13 11 15 20 21 30 33 2,800 160 5.9 158 2.8 7.1 

14 11 18 23 21 29 33 392 88 6.5 70 2.4 5.3 

15 10 17 43 21 29 33 158 59 8.9 42 1.8 4.8 

16 9.8 16 42 21 28 29 91 43 7.4 29 1.6 4.4 

17 9.4 18 35 20 26 28 64 35 6.2 20 1.4 4.6 

18 9.4 23 30 20 28 26 50 29 5.0 17 1.4 5.6 

19 9.4 24 28 23 26 26 42 30 4.4 14 1.2 4.8 

20 8.9 26 26 25 25 26 35 23 3.8 12 1.1 4.4 

21 8.9 21 25 26 24 26 32 19 3.4 11 1.0 4.8 

22 8.9 29 24 25 25 49 29 18 3.2 10 .9 48 

23 11 35 23 23 25 29 36 16 3.0 8.9 .9 220 

24 11 35 23 23 28 26 40 15 345 8.0 .9 55 

25 10 30 21 23 30 25 356 14 166 7.4 1.3 19 

26 11 24 21 23 39 24 370 13 149 6.8 1.4 11 

27 11 20 21 25 62 23 156 21 71 6.2 1.5 8.0 

28 11 19 21 21 50 30 85 23 36 5.6 1.8 6.2 

29 11 18 23 26 47 40 59 16 23 5.0 3.0 5.0 

30 11 18 23 24 30 47 14 16 4.6 4.2 4.6 

31 11 24 24 - 25 ,2 - 4.2 3.4 -

Second- Runoff in Month Maximum Minimum Mean foot-days aors-feet 

October 308.4 11 8.9 9.95 612 

November . 530.4 35 9.4 17.7 1,050 

December 1,161 343 18 37.5 2,300 

Calendar year 1947 46,494.1 3,010 7.7 127 92,230 

January 703 26 20 22.7 1,390 February 986 62 24 34.0 1,960 March 972 49 23 31.4 1,930 April 5,110 2,800 19 170 10,140 May 2,547 1,210 12 82.2 5,050 June 964.8 345 3.0 32.2 1,910 July 1,871.7 407 4.2 60.4 3,710 August 327.9 129 .9 10.6 650 September 466.2 220 1.3 15.5 925 

Water year 1947-48 15,948.4 2,800 .9 43.6 31,630 

Peak'discharge (base, 9,800 sec.-ft.).- No peak above base. 

Barton Springs at Austin, Tex. 

Location.- Lat. 30°16., long. 97°461 . Springs issue from channel and along banks of 

Barton Creek for a distance of 1,000 feet in Zilker Park at Austin, Travis County. The 

main spring is near right bank of creek 500 feet upstream from concrete dam forming 

swimming pool, 1,800 feet upstream from bridge on Austin-Bee Cave Highway, and 0.6 mile 

upstream from mouth of Barton Creek. 

Records available.- October 1918 to'September 1926 and October 1940 to September 1948. 

November 1894 to September 1918, October 1926 to September 1940, discharge published 

as miscellaneous measurements. Daily discharge record of Barton Creek at Austin, 

published for period April 1917 to September 1918, closely represents flow of Barton 

Springs. Summary of all discharge measurements prior to October 1937 is contained in 

Water-Supply Paper 850. Extremes.- Maximum discharge measured during year, 48.2 second-feet Oct. 19; minimum 

measured, 19.1 second-feet Aug. 14. 1894-1948: Maximum discharge measured, 166 second-feet May 10, 1941; minimum 

measured, 12.1 second-feet Feb. 26, 1918. Remarks.- Discharge measurements represent total flow of springs including Old Mill Spring 

which is on right bank and about 1,000 feet downstream from main spring. Springs 

emerge from Edwards limestone in Balcones fault zone and respond to rainfall on Edwards 

Plateau. Water used for recreational purposes. 
	 	

170 COLORADO RIVER BASIN 

D scharge measurements, in second-feet, of Barton Creek and determination of discharge of Barton Springs at Austin, Tex., water year October 1947 to September 1948 

Barton Creek Barton Creek Barton Creek Barton Creek Date Barton Springs Date above spl.Ings Barton Springs below springs above springs below springs 

Oct. 19 48.2 0 48.2 June 12 19.3 0 19.3 Nov. 16 Dec. 18 Jan. 13 Mar. 3 

29.1 

27.0 

26.5 

23.3 

0 

0 

0 

0 

29.1 

27.0 

26.5 

23.3 

July 15 

Aug. 14 Sept. 4 

25 

24.7 

19.1 

22.8 

23.5 

0 

0 

0 

0 

24.7 

19.1 

22.8 

23.5 Apr. 28 21.4 0 21.4 

Dry Creek at Buescher Lake, near Smithville, Tex. 

Location.- Water-stage recorder above concrete spillway of dam, lat. 30003., long. 

97v09', in Bastrop-Buescher State Park, 1.9 miles upstream from mouth and 2.2 miles 

north of Smithville, Bastrop County. Datum of gage is 327.9 feet above mean sea 

level, datum of 1929. 

Drainage area.- 1.48 square miles (area above dam). 

Records available.- October 1939 to September 1948. 

Extremes.- MaxiMum 20-minute inflow during year, 86 second-feet May 25; maximum gage 

height, 18.58 feet Oct. 1; no inflow most of time. 

1939-48: Maximum inflow, 1,870 second-feet June 30, 1940 (gage height, 24.82 

feet); maximum gage height, 24.96 feet June 30, 1940 (outflow, 1,670 second-feet, 

based on spillway rating); no flow most of time. 

Remarks.- Records good. Records given herein represent flow into Buescher Lake. No 

runoff except during and immediately following precipitation. Discharge below gage 

height 22.27 feet (spillway crest) determined from change in contents of lake; that 

above gage height 22.27 feet determined by algebraic summation of flow over spillway 

(computed from spillway curve) and change in contents of lake (computed from capacity 

curve and reduced to equivalent second-feet). There was no flow over spillway 

during year. No adjustments made for evaporation or seepage losses. Capacity of 

lake, 255 acre-feet. No diversion above station or from lake. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 0 2 0 3 0 4 0 5 0 

6 0 7 0 8 0 9 .2 10 0 

11 0 12 0 13 0 14 0 15 0 

16 0 17 0 18 0 19 0 20 0 

21 0 22 0 23 0 24 0 25 0 

26 0 27 0 28 0 29 0 30 0 31 0 

100000 00000000.0 0000

00000000000

[o • N. 

00000 00000 00000 0000 0000000000 

N.-,.N n 0000000000

00 000000000000000

1100 0 0000 00000 00000 00 000 0 

;3, 

000000 00000000000000

000000 0000 

100000 0000 000000000

00000000000 

tr!11, 00000 000000000000000 00000 0 

u"

! 

00000 0000 0000 00 00 0000N . 0000 

1 00000 00 0 00000 00000 00 000 

000 00. 

00000 00000 00000 00000 0000 000000 

n 00000000 00000000000000000000 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 0.2 November .3 December 1.1 

Calendar year 1947 129.9 

00000 1000000000 

0.01 0.4 .01 .6 .04 2.2 

.36 258 

January .7 .02 1.4 February 1.4 .05 2.8 March .2 .01 .4 April .7 .02 1.4 May 5.6 .18 11 June .9 .03 1.8 July 1.0 .03 2.0 August .2 .01 .4 September .2 .01 .4 

Water year 1947-48 12.5 2.8 0 .03 25 

Peak discharge (base, 70 sec.-ft.).- May 25 (10:15 p.m.) 86 sec.-ft. 
LAVACA RIVER BASIN 171 

Lavaca River at Hallettsville, Tex. 

Location.- Wire-weight gage for low stages and water-stage recorder for high stages, let. 

29°2b1 , long. 96°57', at bridge on U. S. Highway 77 In Hallettsville, Lavaca County, 

and 0.4 mile upstream from Texas & New Orleans Railroad bridge. Datum of gage is 

186.7 feet above mean sea level, datum of 1929. 

Drainage area.- 101 square miles. 

Records available.- July 1939 to September 1948. 

Extremes.- Maximum discharge during year, 3,650 second-feet May 27 (gage height, 18.45 

feet); minimum, 0.3 second-foot Aug. 18-26. 

1939-48: Maximum discharge, 93,100 second-feet June 30, 1940 (gage height, 40.60 

feet, from floodmarks of highest flood known), by slope-area method; minimum, that of 

Aug. 18-26, 1?48. 

Maximum stage known prior to 1940, 32.8 feet July 16, 1936, from information by 

local resident. 

Remarks.- Records good. Wire-weight gage read twice daily, oftener during high stages 

and used for computing discharges below about 100 second-feet. No known diversion 

above station. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 1.3 3.0 2.8 7.7 5.3 9.5 5.0 3.8 7.7 25 0.9 0.6 2 1.3 2.8 3.4 6.4 26 8.9 4.8 3.8 6.9 7.1 .9 .5 3 1.3 2.8 4.0 5.0 124 8.3 4.6 3.6 6.2 4.4 .9 .4 4 1.3 2.8 9.3 4.6 30 8.6 5.0 3.6 6.0 21 .8 .4 5 1.4 2.8 17 4.4 17 11 5.3 3.6 4.8 13 .6 .4 

6 1.4 2.8 5.7 4.4 12 10 5.5 4.2 4.4 3.8 .6 .4 7 1.3 2.8 4.2 4.4 9.5 9.8 5.0 3.6 4.0 1.8 .6 .4 8 1.3 2.6 4.2 4.4 14 17 4.8 3.2 3.4 7.2 .6 .5 9 1.3 2.8 4.6 4.2 27 57 4.6 3.2 2.4 16 .5 1.4 10 1.3 3.8 4.4 4.2 12 32 4.4 3.2 2.2 2.4 .5 3.6 

11 1.3 4.0 4.8 4.2 11 14 4.4 13 2.0 9.0 .5 3.2 12 1.3 3.6 11 5.3 9.5 10 3.8 15 2.0 5.7 .5 2.5 13 1.3 3.2 20 6.0 8.3 9.8 4.6 4.8 1.6 2.6 .4 1.9 14 1.2 3.0 22 5.3 6.9 9.8 6.4 3.8 1.6 1.0 .4 d2.1 15 1.2 2.8 132 4.4 6.2 9.8 5.3 3.2 1.4 .8 .4 19 

16 1.2 2.6 47 4.0 6.2 8.6 4.6 2.8 1.6 .8 .4 1.9 17 1.2 160 16 4.6 6.0 7.4 4.2 2.5 1.6 .8 .4 2.0 18 1.3 69 9.5 10 6.0 7.4 4.2 2.4 1.4 .8 .4 3.8 19 1.4 13 7.4 9.8 6.0 7.1 4.2 3.2 1.3 .8 .4 8.3 20 1.8 6.4 5.7 15 5.7 6.9 4.2 2.6 1.3 .6 .3 4.6 

21 1.6 5.7 5.0 8.0 127 6.6 4.4 2.4 1.3 .6 .3 2.2 22 1.6 11 4.6 6.2 124 7.1 4.6 2.4 1.3 .5 .3 1.3 23 1.4 6.4 4.6 5.5 24 6.6 8.7 2.4 1.3 .5 .3 .9 24 1.6 4.8 4.6 5.3 18 6.2 5.7 2.2 1.6 .6 .3 .8 25 1.4 4.0 4.6 5.5 16 , 5.7 25 878 1.6 .6 .3 .6 

26 1.4 3.8 4.6 6.0 15 6.0 12 343 1.6 .6 35 .6 27 

28 1.8 1.9 3.6 

3.4 4.4 4.6 7.7 

6.2 17 16 5.5 

5.0 6.9 1,200 6.0 62 1.6 

1.4 .6 

.5 9.5 1.6 .6 

.5 29 

30 2.8 

3.0 3.2 

2.8 4.8 4.8 5.7 

5.0 10 

- 4.8 4.8 5.0 

4.4 26 14 2.2 11 .5 

.5 .9 .6 .5 

.5 31 3.0 5.3 5.0 - 5.0 12 - .6 .6 

Month Secondfoot-days Maximum Minimum Mean Runoff Sr. 

acre-feet 

October 47.9 3.0 1.2 1.55 95 November 345.3 160 2.6 11.5 685 December 386.9 132 2.8 12.5 767 

Calendar year 1947 9,732.0 1,340 1.1 26.7 19,320 

January 

February 

March 

184.4 

715.6 

326.2 

15 

127 

57 

4.0 

5.3 

4.8 

5.95 

24.7 

10.5 

366 1,420 647 

April 

May 

June 

177.6 2,633.5 88.7 

25 1,200 11 3.8 

2.2 

1.3 

5.92 

85.0 

2.96 

352 5,220 176 

July 

August 

September 

130.7 

60.7 

66.4 

25 

35 

19 

.5 

.4 

4.22 

1.96 

2.21 

259 

120 

132 

Water year 1947-48 5,163.9 1,200 .3 14.1 10,240 

Peak discharge ,ase 3,100 sec.-ft.).- May 27 (4;30 a.m.) 3,650 sec.-ft. 

d Doubtful gage-height record; discharge computed on basis of weather records and records for near- by stations. 
172 LAVACA RIVER BASIN 

Lavaca River near Edna, Tex. 

Location.- Wire-weight gage, lat. 28°58', long. 96°42', at bridge on U. S. Highway 59, 

55U feet upstream from Texas & New Orleans Railroad bridge and 2.8 miles southwest 

of Edna, Jackson County. Datum of gage is 13.88 feet above mean sea level, datum 

of 1929 (levels by Corps of Engineers). 

Drainage area.- 887 square miles. 

Records available.- August 1938 to September 1948. 

Average discharge.- 10 years (1938-48), 345 second-feet. 

Extremes.- Maximum discharge during year, 15,200 second-feet May 27 (gage height, 24.69 

feet, from floodmark); minimum observed, 5.5 second-feet Aug. 18. 

1938-48: Maximum discharge, 73,000 second-feet July 1, 1940 (gage height, 32.51 

feet); minimum observed, 5.2 second-feet July 10, 1939. 

Maximum stage known, 33.8 feet May 25, 1936, from information by local resident 

(discharge, 83,400 second-feet). 

Remarks.- Records good. Cage read twice daily, oftener during high stages. No large 

diversion above station. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 15 17 25 31 38 214 43 28 221 72 14 17 

2 16 16 24 29 254 113 41 26 175 67 14 14 

3 16 17 26 31 857 74 39 25 144 176 12 11 

4 16 17 28 38 603 59 39 21 124 158 12 11 

5 16 17 35 33 407 106 40 20 110 71 12 11 

6 16 17 34 32 249 107 41 21 98 175 11 11 

7 18 17 39 31 162 80 40 20 89 129 12 11 

8 18 17 34 31 157 192 39 17 82 65 10 11 

9 18 17 29 31 146 1,180 38 22 78 48 9.5 18 

10 20 18 28 31 98 1,040 37 22 72 41 10 21 

11 18 21 29 31 100 374 36 47 84 38 9.5 21 

12 18 21 35 34 78 165 36 53 71 36 9.5 20 

13 19 21 90 120 65 110 36 35 78 38 8.1 18 

14 18 23 72 40 57 89 34 36 63 38 10 22 

15 18 21 114 37 51 80 33 31 57 36 9.0 22 

16 18 21 97 40 48 74 34 23 53 31 10 23 

17 18 22 140 68 44 65 34 23 49 29 6.4 29 

18 18 44 64 41 41 57 33 19 47 29 6.4 27 

19 15 278 47 68 40 55 29 23 43 24 6.4 93 

20 17 87 38 404 40 53 29 20 41 21 0.4 41 

21 15 45 36 166 40 52 25 15 40 20 6.4 27 

22 15 40 34 105 290 51 26 18 40 18 7.2 23 

23 18 34 33 71 560 55 26 22 39 18 9.0 17 

24 17 31 31 51 195 52 28 18 36 18 8.1 14 

25 16 29 31 44 119 49 67 2,070 38 16 16 12 

26 16 34 31 41 91 48 182 11,600 41 16 16 10 27 

28 

18 

18 29 

26 30 31 44 

42 81 

80 

47 

45 

75 

46 12,400 

7,640 39 

38 16 15 23 22 8.1 

7.7 29 18 26 31 42 191 44 36 1,800 36 16 22 7.2 

30 18 25 31 42 - 44 33 453 38 14 16 7.2 31 18 31 38 - 44 - 301 14 17 

Month Secondfoot-days Maximum Minimum Mean Runoff in 

acre-feet 

October 

November 

December 

533 1,048 

1,378 

20 

278 

140 

15 

16 

24 

17.2 

34.9 

44.5 

1,060 

2,080 

2,730 _ Calendar year 1947 60,079 4,290 12 165 119,200 

January 

February 

March 

April 

May 

June 

July 

August 

September 

1,887 

5,182 

4,818 

1,275 

36,871 

2,164 

1,500 360.9 

585.2 

404 

857 1,180 182 12,400 221 

176 

23 

93 

29 

38 

44 

25 

15 

36 

14 

6.4 

7.2 

60.9 

179 

155 

42.5 1,189 72.1 

48.4 

11.6 

19.5 

3,740 

10,280 

9,560 

2,530 

73,130 

4,290 

2,980 716 1,160 

Water year 1947-48 57,602.1 12,400 6.4 157 114,300 

Peak discharge (base, 4,100 sec.-ft.).- May 27 (1 a.m.) 15,200 sec.-ft. 
		

LAVACA RIVER BASIN 173 

Lavaca River seepage investigations 

A series of discharge measurements was made Nov. 4, 1947, and Aug. 5, 1948, on Lavaca 

River between Dr. R. E. Lee's pump, about 3y miles northwest of Edna, and Koop Brother's 

pump, about 6i miles southeast of Edna. Discharge measurements were made of Lavaca River 

at upper and lower ends of river reach, and at three intervening points. IN addition, 

the quantity of water being diverted from river by each of three pumps was measured. 

These were all known diversions from this reach of the river at the time the investigation was made. There was no inflow into the reach. The investigations were made during 

periods of constant stage of river as Indicated at gaging station near Edna which is within the reach. The determinations of gain or loss represent normal conditions. 

Discharge measurements of Lavaca River, Texas,between pumping plants of Dr. Lee and Koop Bros. 

near Edna, Tex., _947-48 

Distance Discharge in second-feet 

Stream below 

Date or Location Initial Main Diver- Gain cr ".' .1:41 Diversion point stream sic, los, In E,:n or (miles) section loss 

1947 

Nov. 4 Lavaca River i mile below county bridge, C 15.E 

about 3} miles northwest 

of Edna, Jackson County, 

Tex. and 150 feet above 

Dr. Lee's pump. 4 Dr. Lee's pump 34 miles northwest of Edan, 

Tex. 4 Lavaca River At regular gaging station on . +'. bridge on U. S. Highway 

59, 2.8 miles southwest of 

Edna, Tex. 4 ....do 100 feet above Babb's pump 4.1 4:., and about 3 miles southwest of Edna, Tex. 4 Babb's pump About 3 miles southwest of 4.1 -

Edna, Tex. 4 Lava., River 700 feet below old county 6.5 19.4 

bridge and about 4 miles 

southwest of Edna, Tex. 4 ....do 50 feet above Koop Bros. 

pump and about miles 9.5 21.7 4:.9 

south of Edna, Tex. 4 Koop Bros. pump About gi miles south of 9.5 - -

Edna, Tex. 1948 

Aug. 5 Lavaca River 14 mile below county bridge, -

about 3+ miles northwest 

of Edna, Jackson County, 

Tex., and 150 feet above 

Dr. Lee's pump. 5 Dr. Lee's pump 7 miles northwest of Edna, C - 4 -

Tex. 5 Lavaca River At regular gaging station 3 10.-: 4:., 41.~ 

on bridge on U. S. Highway 59, 2.8 miles southwest of Edna, Tex. 

5 Lavaca River 30 feet above Babb's pump 4.1 17.1 - +.4 +1.9 

and about 3 miles,southwest of Edna, Tex. 5 Babb's pump About 3 miles southwest of 4.1 

Edna, Tex. 5 Lavaca River 300 feet below old county 6.5 4.34 47.E 

bridge and about 4 miles 

southwest of Edna, Tex. 

6 ....do 100 feet above Koop Bros. 9.5 5.20 - +.9 44.5 

pump and 6} miles south 

of Edna, Tex. 5 Koop Bros. pump About 6} miles south of 9.5 6.49 -

Edna, Tex. 

Note.- Discharge measurements made during periods of constant stage. Measurements In November were 

mad7WEen no pumps were operating and none had been operated during the preceding week. Measurements 

in August were made while all pumps were operating at a constant rate of speed and had been for 

several days preceding the measurements. 
174 LAVACA RIVER BASIN 

Navidad River near Ganado, Tex. 

Location.- Wire-weight gage, lat. 29°02', long. 96°33', at bridge on U. S. Highway 59, 

100 feet upstream from Texas & New Orleans Railroad bridge, a quarter of a mile downstream from Sandy Creek, and 2,1,- miles southwest of Ganado, Jackson County. Datum of 

gage is 13.62 feet above mean sea level, datum of 1929 (levels by Corps of Engineers). 

Drainage area.- 1,116 square miles. 

Records available.- May 1939 to September 1948. 

Extremes.- Maximum discharge during year, 9,500 second-feet May 27 (gage height, 27.10 

feeti; minimum observed, 2.2 second-feet Aug. 13, 14, 24. 

1939-48: Maximum discharge, 64,500 second-feet July 2, Nov. 26, 1940; maximum 

gage height, 36.54 feet July 2, 1940, from floodmark; minimum discharge observed, 

that of Aug. 13, 14, 24, 1948. Maximum stage known, 39.8 feet May 27, 1936, from information by engineers of 

Texas & New Orleans Railroad (discharge, 94,000 second-feet, from rating curve extended above 60,000 second-feet). 

Remarks.- Records good. Gage read twice daily, oftener during high stages. No large 

diversion above station. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

°8°72°N 2%ga ;V:414). rTH FAR

T,..,—. 

".

ti

N Mmm

N

HifH. ':,qR17:°1 '"22 

NNE r+ 

1 21 12 22 40 41 210 482 4.0 82 39 34 131 454 2.4 91 38 30 85 330 3.3 104 

30 2 17 12 22 29 3 12 12 24 30 4 62 13 25 33 38 27 65 321 2.9 84 5 35 13 43 36 38 19 56 285 2.4 82

6 32 13 234 33 38 14 50 267 3.3 79 38 14 43 183 4.0 77 

38 15 37 276 4.0 104 37 14 33 210 3.3 330 37 9.5 30 293 3.3 330 

35 11 29 190 3.3 454 33 69 34 86 2.6 520 27 58 97 62 2.4 340 18 40 58 48 2.4 186 19 30 35 57 2.6 149 

49 18 29 39 3.3 120 44 12 23 22 3.6 189 35 16 24 35 4.0 218 30 21 28 41 2.9 168 29 102 19 37 3.3 128 

7 22 12 312 30 8 20 12 204 27 9 27 13 115 26 10 20 12 69 28 

11 17 13 102 31 12 16 18 157 30 13 14 19 560 153 14 13 20 580 183 15 10 19 786 100 

16 4.6 18 700 94 17 4.0 36 742 303 18 3.3 330 378 267 19 12 472 210 698 20 9.0 160 114 2,210 

21 17 77 82 1,340 22 13 59 64 700 23 12 49 54 378 24 12 38 46 189 25 11 34 39 123 

27 87 16 31 2.4 93 27 61 13 26 2.9 65 27 32 12 27 2.9 53 19 17 13 21 2.2 44 45 496 11 13 4.0 50 

26 12 38 33 92 520 5,480 11 11 7.0 44 27 14 30 32 85 387 8,960 10 9.0 33 52 28 12 25 34 80 29 12 24 32 77 30 11 23 31 70 31 13 31 61 

258 7,100 12 6.5 78 40 92 2,260 12 7.5 108 35 51 660 21 4.3 76 33 - 358 - 2.9 69 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 509.9 62 3.3 16.4 1,010 November 1,626 472 12 54.2 3,230 December 5,877 786 22 190 11,660 _ 

Calendar year 1947 105,090.9 5,400 3.3 288 208,400 

January 7,566 2,210 26 244 15,010 February 16,140 2,680 53 557 32,010 

March 13,684 2,570 40 441 27,140 April 2,153 520 18 71.8 4,270 

May 26,105.5 8,960 9.5 842 51,780 

June 1,247 210 10 41.6 2,470 

July 3,877.2 482 2.9 125 7,690 August 450.7 108 2.2 14.5 894 September 4,344 520 33 145 8,620 

Water year 1947-48 83,580.3 8,960 2.2 228 165,800 

Peak discharge (base, 6,600 sec.-ft.).- May 27 (11 p.m.) 9,500 sec.-ft. 
GUADALUPE RIVER BASIN 175 

Guadalupe River at Hunt, Tex. 

Location.- Water-stage recorder and concrete control, lat. 30°03., long. 99°19,, at bridge 

on. State Highway 39, half a mile downstream from confluence of North and South Forks, 

0.6 mile east of Hunt, Kerr County. Datum of gage is 1,722.7 feet above mean sea 

level, datum of 1929. 

Drainage area.- About 370 square miles. 

Records available.- October 1941 to September 1948. 

Extremes.- Maximum discharge during year, 179 second-feet July 5 (gage height, 2.08 feet); 

---FinTITulm, 6.9 second-feet June 17. 

1941-48: Maximum gage height and discharge not determined; minimum discharge, that 

of June 17, 1946. 

Maximum stage known, 36.6 feet July 2. 1932, from Information by local resident. 

Remarks.- Records excellent. Discharge not computed above 600 second-feet. About 60 

. acres above station are irrigated. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 28 26 34 36 33 39 35 30 17 44 24 17 

2 28 26 34 34 39 36 34 27 19 34 34 17 

3 29 26 35 34 38 34 34 28 19 32 31 19 4 29 27 39 33 35 33 34 30 19 52 27 19 

5 28 27 38 32 35 33 34 29 18 112 24 17 

6 28 38 33 36 33 35 28 18 63 21 16 

7 28 27 39 34 36 33 35 25 18 57 21 16 

8 28 41 34 34 33 34 28 18 46 20 16 9 30 28 39 34 33 48 38 32 17 40 19 49 10 30 29 38 33 32 48 35 29 17 32 19 39 

11 28 30 36 33 31 39 33 '59 20 35 18 29 12 28 30 36 34 30 38 33 70 22 40 17 25 13 28 32 36 33 30 36 76 63 19 39 17 22 14 29 35 38 32 30 35 53 55 24 33 17 22 

15 28 34 41 31 29 35 40 48 22 31 17 21 

16 41 32 39 31 33 35 36 42 16 29 16 21 

17 30 38 38 31 34 34 34 38 11 26 16 22 

18 29 44 36 31 36 34 33 34 10 24 15 23 19 33 40 36 32 31 35 32 32 12 22 15 22 

20 31 36 36 34 30 34 31 31 13 22 15 22 

21 30 36 36 33 29 35 26 30 13 22 15 22 

22 29 44 36 33 28 35 24 29 13 21 15 23 

23 29 45 36 32 30 33 53 27 16 21 15 45 24 30 40 36 32 42 33 41 26 64 21 15 39 

25 30 36 35 32 79 33 58 27 57 21 15 29 

26 30 36 35 32 52 45 52 30 44 20 17 25 

27 30 35 35 32 49 41 40 27 39 20 20 23 28 30 34 35 30 43 38 35 25 34 21 19 22 

29 30 33 35 31 39 •35 33 24 33 22 18 22 

30 30 33 36 32 34 31 21 34 20 18 34 

31 28 - 38 32 34 19 - 19 17 -

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 917 41 28 29.6 1,820 November 993 45 26 33.1 1,970 December 1,140 41 34 36.8 2,260 

Calendar year - - 26 - -

January 1,010 36 30 32.6 2,000 February 1,056 79 28 36.4 2,090 March 1,121 48 33 36.2 2,220 April 1,142 76 24 38.1 2,270 May 1.043 70 19 33.6 2,070 June 696 64 10 23.2 1,380 July 1,041 112 19 33.6 2,060 August 587 34 15 18.9 1,160 September 738 49 16 24.6 1,460 

Water year 1947-48 11,484 112 10 31.4 22,760 

Peak discharge.- No discharge published above 800 sec.-ft. 
176 GUADALUPE RIVER BASIN 

Guadalupe River at Comfort, Tex. 

Location.- Water-stage recorder, lat. 29°58', long. 98°54', at bridge on U. S. Highway 87, 

a quarter of a mile downstream from Cypress Creek and half a mile east of Comfort, Kendall County. Datum of gage is 1,372.0 feet above mean sea level, datum of 1929. 

Drainage area.- About 990 square miles. 

Records available.- May 1939 to September 1948. December 1917 to August 1924 at site 

5 miles upstream, and August 1924 to September 1932 at site 4 miles upstream. Records 

published as Guadalupe River near Comfort (records equivalent during flood runoff originating above upper site and during extremely low flow, at which times Cypress Creek 

contributes no appreciable flow). 

Extremes.- Maximum discharge during year, 1,390 second-feet July 12 (gage height, 7.04 

feet); minimum, 13 second-feet Aug. 24-28. 

1917-32, 1939-48: Maximum discharge, 182,000 second-feet July 1, 1932 (gage height, 

38.4 feet, present site and datum, from floodmarks, from data furnished by Texas Highway Department), by slope-area method (flood originated above Cypress Creek drainage); 

minimum observed, 0.4 second-foot Aug. 2, 1918, at site then in use. 

Flood of July 16, 1900, reached about same stage as that of July 1, 1932. 

Remarks.- RecoNis good. Several small diversions above station for irrigation. Slight 

regu ation at low flow by power plants above station. 

Discharge, in second-feet, water year October 1947 to September 1948 

Dey Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 43 48 66 67 65 104 60 73 32 44 25 15 

2 40 43 66 64 75 93 58 67 28 45 112 14 

3 38 43 69 64 80 86 57 64 26 108 93 14 

4 37 43 132 62 80 82 58 57 25 81 53 14 5 37 43 78 61 80 79 58 52 23 58 39 14 

6 37 44 71 61 97 78 59 50 23 137 30 14 

7 37 44 71 61 97 75 60 46 22 123 26 14 

8 35 41 70 62 88 75 57 46 21 88 20 14 

9 50 42 68 62 83 75 56 44 20 71 18 47 

10 51 44 70 62 78 91 56 41 20 111 18 32 

11 44 49 67 62 75 97 56 62 25 237 16 47 

12 41 51 65 65 72 88 54 270 23 246 16 49 

13 43 52 64 66 70 80 67 165 21 124 15 37 

14 42 59 64 62 67 76 163 121 23 73 16 33 15 42 58 75 60 66 73 127 100 22 65 16 52 

16 40 58 78 60 65 72 97 86 20 53 16 43 17 41 70 75 59 65 70 79 75 20 46 15 33 18 47 82 71 62 67 68 68 67 20 42 15 32 19 47 76 67 67 71 67 61 59 19 40 14 31 20 44 75 66 68 71 66 56 53 18 37 14 29 

21 42 71 65 70 65 66 51 52 18 33 14 27 

22 43 76 64 68 62 65 51 46 18 30 14 27 

23 43 85 62 67 64 64 72 43 18 25 14 93 24 43 90 61 62 65 64 102 38 504 24 13 37 

25 42 82 61 61 79 62 221 71 201 24 13 34 

26 44 76 62 62 187 62 177 51 210 23 13 44 27 45 72 61 64 170 84 134 36 91 23 13 35 28 46 68 61 64 141 85 106 37 72 23 13 31 29 46 66 61 62 119 75 86 42 62 23 14 28 30 48 65 61 62 67 78 38 49 22 16 27 31 50 65 62 61 35 22 16 -

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 1,328 51 35 42.8 2,630 November 1,816 90 41 60.5 3,600 

December 2,137 132 61 68.9 4,240 

Calendar year 1947 64,484 7,750 35 177 127,900 -

January 1,961 70 59 63.3 3,890 

February 2,464 187 62 85.0 4,890 

March 2,350 104 61 75.8 4,660 

April 2,485 221 51 82.8 4,930 

May 2,087 270 35 67.3 4,140 

June 1,694 504 18 56.5 3,360 

July 2,101 246 22 67.8 4,170 August 740 112 13 23.9 1,470 September 961 93 14 32.0 1,910 

Water year 1947-48 22,124 504 13 60.4 43,890 

Peak discharge (base, 3,900 sec.-ft.).- No peak above base. 
GUADALUPE RIVER BASIN 177 

Guadalupe River near Spring Branch, Tex. 

Location.- Water-stage recorder, lat. 29°51.40', long. 98°23.00", at bridge on county 

highway 4 miles southeast of Spring Branch, Comal County, and 6 miles downstream from 

Curry Creek. Datam of gage is 948.13 feet above mean sea level, datum of 1929. 

Drainage area.- 1,432 square miles. 

Records available.- June 1922 to September 1948. 

Average discharge.- 26 years, 289 second-feet. 

Extremes.- Maximum discharge during year, 7,770 second-feet June 24 (gage height, 12.47 

feet); minimum, 12 second-feet Aug. 14 (gage height, 1.81 feet). 

1922-48: Maximum discharge, 121,000 second-feet July 3, 1932 (gage height, 42.10 

feet), from rating curve extended above 70,000 second-feet; minimum, 2.2 second-feet 

July 11, 1939, from rating curve extended below 15 second-feet. 

Maximum stage known, between 45 and 50 feet in 1900, from information by local 

residents. 

Remarks.- Records good. Small diversions above station for irrigation. Slight regulation 

at low flow by power plants above station. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 

2 

3 

50 

50 

52 

60 

58 

58 

87 

87 

89 

85 

84 

85 

84 

91 

94 

119 

109 

101 

8? 

77 

76 

89 

8? 

79 

44 

39 

36 

85 

76 

84 

34 

46 

65 20 

21 

4 53 60 91 85 96 96 74 74 34 95 76 21 

5 53 57 113 85 98 92 74 70 32 151 71 20 

6 54 57 109 85 98 89 74 70 30 107 57 19 7 54 57 100 84 100 87 74 65 28 85 52 18 8 56 57 94 84 109 87 74 61 24 115 45 17 9 56 60 92 85 103 87 73 61 23 98 42 23 10 54 61 92 85 100 87 71 61 21 84 38 26 

11 57 63 91 84 98 85 70 112 24 76 34 44 12 61 64 89 85 94 92 70 95 33 168 32 48 13 57 67 89 84 91 96 106 124 23 484 30 40 14 54 71 89 82 87 94 115 151 26 176 28 47 15 54 71 98 82 87 91 89 113 22 92 25 44 

16 54 73 94 84 85 87 117 98 20 79 25 42 17 54 a77 96 82 84 84 100 87 18 71 23 43 18 53 85 9G 81 84 84 89 79 20 64 22 49 19 53 96 94 82 84 82 81 71 19 58 21 45 20 53 92 92 84 85 82 74 65 16 54 20 43 

21 56 91 91 85 89 81 71 60 15 52 19 40 22 54 94 89 85 85 89 67 57 16 50 17 40 23 54 92 87 87 84 85 70 56 15 48 15 106 24 

25 56 

56 94 98 87 

85 85 

85 84 87 81 81 71 

87 53 

50 2,740 649 47 

44 13 

24 73 61 

26 57 101 84 85 91 81 166 49 249 43 26 48 27 57 98 84 84 123 .79 156 89 236 40 22 39 28 58 94 84 82 148 77 125 60 190 38 68 40 29 60 91 84 82 134 87 107 47 241 37 42 40 30 60 89 84 82 - 91 96 44 111 36 28 39 31 60 - 85 82 - 85 - 45 - 34 22 -

Month Secondfoot-days Maximum Minimum Mean Runoff In 

acre-feet 

October.., 1,710 61 50 55.2 3,390 November 

December 2,286 

2,826 101 

113 57 

84 76.2 

91.2 4,530 5,610 

Calendar year 1947 113,424 5,660 48_1 311 225,000 

January 

February 

March 

April 

May 

June 

2,601 

2,777 

2,748 

2,676 

2,317 

4,994 

87 

148 

119 

166 

151 2,740 

81 

84 

77 

67 

44 

15 

83.9 

95.8 

88.6 

89.2 

74.7 

166 

5,160 

5,510 

5,450 

5,310 

4,600 

9,910 

July 

August 

September 

2,771 

1,084 

1,177 

484 

76 

106 

34 

13 

17 

89.4 

35.0 

39.2 

5,500 

2,150 

2,330 

Water year1947-48 29,967 2,740 13 81.9 59,450 

Peak discharge fbase, .4,000 sec.-ft.).- June 24 (2:30 p.m.) 7,770 sec.-ft. 

a No gage-hcigh record discharge computed on basis of estimated gage height. 
178 GUADALUPE RIVER BASIN 

Guadalupe River above Comal River, at New Braunfels, Tex. 

Location.- Water-stage recorder and concrete control, lat. 29°42,55", long. 98°06,40", at 

New Braunfels, Comal County, 1.1 miles upstream from Comal River. Datum of gage is 

586.6 feet above mean sea level, datum of 1929. 

Drainage area.- 1,666 square miles. 

Records available.- December 1927 to September 1948. March 1898 to December 1899 and January 1915 to December 1927 at site 1 mile downstream from Comal River. 

Average discharge.- 20 years (1928-48), 414 second-feet. 

ixtremes.- Maximum discharge during year, 6,910 second-feet June 25 (gage height, 7.14 

feet); minimum, 20 second-feet Sept. 7 (gage height, 0.91 foot). 

1927-48: Maximum discharge, 101,000 second-feet June 15, 1935 (gage height, 32.95 

feet); minimum, 9.6 second-feet July 9-11, 1939. 

Maximum stage known, 38 feet in 1869 and in December 1913, from information by local 

residents. 

Remarks.- Records excellent. Small diversions above station for irrigation. Some regulation at low flow by small power plants above station. 

Revisions (water year).- W 898: 1935. 

Rating tables, water year 1947-48 (gage height, in feet, and discharge, in second-feet) 

Oct. 1 to May 12 May 13 to Sept. 30 

1.4 70 ' 2.0 186 0.9 19 1.6 100 2.4 415 3.5 1,690 1.6 95 2.2 280 1.0 28 1.8 136 2.6 580 4.0 2,420 1.8 128 2.4 415 1.2 49 2.0 190 2.8 773 1.4 72 2.2 280 3.0 995 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 75 76 2 76 74 

L Fr?, FCp,

101 96 173 95 102 56 194 38 49 98 110 153 91 94 51 143 38 37 3 76 74 96 117 133 86 88 50 125 37 31 4 77 74 95 117 121 85 80 50 115 36 26 5 78 74 98 115 114 82 75 48 121 52 24 

6 78 75 98 115 107 82 80 44 185 66 22 7 77 72 96 114 104 81 72 41 158 70 21 8 78 72 96 114 104 80 70 40 131 59 22 9 81 72 96 114 104 78 70 37 129 51 24 10 83 75 96 123 104 76 63 37 141 46 33 

11 82 76 96 114 100 75 290 35 129 42 34 12 80 77 13 80 80 96 110 98 74 391 34 122 39 29 95 107 98 72 213 32 305 36 25 14 87 91 94 102 104 71 138 30 447 33 30 15 83 87 92 101 110 108 205 31 238 32 46 

16 81 87 94 100 106 108 172 34 143 30 41 17 81 92 92 98 100 103 143 31 108 28 45 18 80 96 92 96 98 112 123 28 96 27 48 19 78 98 96 96 96 100 110 28 85 26 46 20 76 106 98 95 95 90 100 25 73 24 47 

21 

22 

23 

24 

25 

75 

75 

77 

77 

76 

112 

110 

107 

107 

106 

98 

98 

98 

96 

98 

101 

102 

98 

98 

100 

95 

101 

95 

98 

92 

83 

77 

77 

74 

90 

88 

81 

75 

71 

68 

24 

23 

23 

23 2,320 

67 

62 

58 

53 

51 

23 

23 

22 

22 

23 

50 

46 

45 

47 

87 

26 

27 

28 

29 

30 

31 

76 

77 

78 

78 

78 

78 

110 

115 

115 

108 

106 

101 

101 

96 

95 

94 

95 

101 

108 

114 

179 

90 

85 

86 

83 

83 

94 

94 

124 

173 

140 

117 

67 

65 

62 

87 

77 

64 

575 

293 

299 1,090 326 

48 

46 

44 

41 

40 

37 

29 

25 

23 

22 

21 

45 

76 

61 

56 

47 

42 

Month Secondfoot-days Maximum Minimum Mean Runoff in 

acre-feet 

October 

November 

December 

2,432 

2,724 

3,321 

87 

115 

146 

75 

72 

98 

78.5 

90.8 

107 

4,820 

5,400 

6,590 

Calendar year1947 

_ 

151,121 4,030 72 414 299,700 

January 

February 

March 

April 

May 

June 

July 

August 

September 

2,985 

3,155 

3,224 

2,798 

3,484 

5,758 

3,735 

1,088 

1,237 

101 

179 

173 

173 

391 2,320 447 

70 

87 

92 

95 

83 

71 

62 

23 

37 

21 

21 

96.3 

109 

104 

93.3 

112 

192 

120 

35.1 

41.2 

5,920 

6,260 

6,390 

5,550 

6,910 

11,420 

7,410 

2,160 

2,450 

Water year 1947-48 35,941 2,320 21 98.2 71,280 

Peak discharge (base, 3,100 sec.-ft.).- June 25 (2:30 a.m.) 6,910 sec.-ft. 
GUADALUPE RIVER BASIN 179 

Guadalupe River at Victoria, Tex. 

Location.- Water-stage recorder, lat. 28°47', long. 97°01', at bridge on U. S. Highway 59 

in Victoria, Victoria County, 1,300 feet upstream from Texas k New Orleans Railroad 

bridge and 10 mileS upstream from Coleto Creek. Datum of gage is 29.23 feet above mean 

sea level, datum of 1929. 

Drainage area.- 5,311 square miles. 

Records available.- November 1934 to,September 1948. Gage-height records collected in 

this vicinity since 1904 are contained in reports of U. S. Weather Bureau. 

Average discharge.- 13 years (1935-48), 1,886 second-feet. 

Extremes.- Maximum discharge during year, 6,970 second-feet May 28 (gage height, 17.50 

feet); minimum, 232 second-feet Aug. 18; minimum daily, 275 second-feet Aug. 18. 

1934-48: Maximum discharge, 179,000 second-feet July 3, 1936 (gage height, 31.22 

feet); minimum daily, that of Aug. 18, 1948. 

Remarks.- Records good. Many small diversions above station do not materially affect 

flow. Low flow partly regulated by power plants above station. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 565 598 631 664 664 763 657 533 906 1,080 386 414 

2 582 614 614 614 910 763 610 579 754 1,57C 400 4".' 

3 582 664 680 664 1,110 763 673 548 705 1,90C 360 34': 

4 548 763 648 730 1,040 780 564 533 673 1,280 373 414 

5 565 377 664 648 1,000 796 594 533 673 1,080 322 347 

e 565 468 680 730 969 796 533 503 579 940 400 342 565 516 714 598 847 697 518 533 533 906 400 322 

8 

9 

614 

598 

598 

548 

648 

631 

664 

697 830 

796 

714 

969 

579 

594 

473 

444 

503 

503 

1,010 

872 386 

386 

360 

429 

10 582 614 697 680 796 1,140 594 518 503 641 386 400 

11 598 598 763 631 697 1,320 518 503 594 594 400 414 12 582 598 780 697 763 1,110 564 1,120 488 533 360 468 13 598 614 730 697 714 872 579 3,040 414 738 373 564 14 565 598 746 648 614 754 473 2,170 414 754 340 373 15 548 565 730 680 648 804 533 1,870 458 673 360 347 

16 565 648 864 631 697 673 518 1,250 386 754 373 429 17 598 631 1,140 664 697 689 503 838 444 754 340 400 18 614 648 1,000 697 664 722 458 722 444 754 275 400 19 582 847 864 714 648 689 488 855 386 564 327 396 20 598 882 714 780 714 771 503 788 400 548 347 373 

21 532 780 664 664 746 673 548 821 360 548 344 386 22 565 714 680 714 730 689 503 804 373 548 315 414 23 631 697 746 664 1,250 689 5C3 705 400 533 322 473 24 648 648 598 614 1,210 689 533 641 373 518 324 414 25 582 697 648 714 969 689 548 738 360 414 400 414 

26 

27 

28 

29 

30 

31 

548 

548 

598 

582 

631 

598 

648 

598 

664 

664 

631 

697 

614 

631 

730 

730 

631 

631 

631 

680 

680 

648 

582 

847 

882 

664 

780 

-

641 

657 

6%1 

610 

626 

626 

594 1,270 

533 3,900 

579 6,710 610 4,910 

564 3,540 

- 1,430 

373 

695 

1,010 

1,220 906 

473 334 518 804 

332 1,61C 429 2,290 

429 2,170 

386 776 

400 

386 

386 

327 

330 

Month Secondfoot-days Maximum Minimum Mean Runoff in 

acre-feet 

October 

November 

December 

18,077 

19,130 

22,307 

648 

882 

1,140 

532 

377 

598 

583 

638 

720 

35,860 

37,940 

44,250 - Calendar year 1947 556,071 _ 9,940 377 1,523 1,103,000 

January 

February 

March 

April 

May 

June 

July 

August 

September 

20,750 

23,896 

23,815 

16,568 

43,822 

16,830 

23,073 

16,983 

11,859 

780 

1,250 

1,320 

673 

6,710 

1,220 

1,900 

2,290 

564 

582 

614 

610 

458 

444 

360 

332 

275 

322 

669 

824 

768 

552 

1,414 

561 

744 

548 

395 

41,160 

47,400 

47,240 

32,860 

86,920 

33,380 

45,760 

33,690 

23,520 

Water year 1947-48 257,110 6,710 275 702 510,000 

Peak discharge (base, 7,800 sec.-ft).- No peak above base. 
180 GUADALUPE RIVER BASIN 

Johnson Creek near Ingram, Tex. 

Location.- Water-stage recorder, lat. 30°05', long. 99°16'. 1.3 miles upstream from Henderson Branch, 3 miles northwest of Ingram, Kerr County, 4.5 miles upstream from 

mouth, and 9.5 miles northwest of Kerrville. Datum of gage is 1,721.3 feet above 

mean sea level, datum of 1929. 

Drainage area.- About 150 square miles. 

Records available.- September 1941 to September 1948. 

Extremes.- Maximum discharge during year, 540 second-feet May 11 (gage height, 3.52 

feet), from rating curve extended above 310 second-feet on basis of slope-area determinations at gage heights 9.67 and 11.76 feet; minimum, 3.0 second-feet June 5, 6. 

1941-48: Maximum discharge, 16,200 second-feet June 23, 1947 (gage height, 11.76 

feet), from rating curve extended as noted above; minimum, 2.6 second-feet Aug. 19, 

20, 1946. 

Maximum stage known since 1852, about 35 feet July 2, 1932, from information by 

local resident; discharge, 138,000 second-feet by slope-area method at point half a 

mile downstream from State Fish Hatchery and about 6 or 7 miles upstream from gage. 

Flood of June 14, 1935, reached a stage of about 31 or 32 feet, from information by 

local residunt. 

Remarks.- Records good. Small diversion above station for irrigation. 

Revisions (water years).- W 1058: 1942-45. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 9.2 2 9.2 3 9.7 4 9.7 5 9.7 

6 9 7 7 9.7 8 9.2 9 9.7 10 9.7 

== 8wwww 

w 88ww

11 11 11 11 9.71 12 8.7 7.4 74 8.7 12 10 12 11 9.2 11 7.8 7.8 40 8.2 12 9.7 12 10 9.2 11 8.2 8.7 17 8.2 12 11 11 10 10 11 7.0 10 13 8.2 11 10 11 9.7 9.7 11 3.9 23 13 8.2 

12 11 12 9.7 9.2 11 5.1 14 12 8.7 12 11 13 9.7 9.2 9.2 7.0 13 11 7.8 12 11 12 10 8.7 9.2 7.0 11 11 8.2 12 11 11 12 8.7 9.7 7.0 9.7 10 13 12 11 11 11 9.2 9.7 8.2 26 10 14 

11 9.7 11 11 11 9.7 8.7 141 11 38 9.7 13 12 9.2 11 11 9.7 9.2 8.7 34 8.7 14 8.7 15 13 8.7 11 11 8.7 9.7 45 18 7.8 12 8.7 67 14 8.7 13 11 9.2 9.7 18 16 7.4 11 8.7 28 15 8.7 13 11 9.7 10 13 13 7.0 10 8.7 14 

16 8.2 17 8.2 18 8.2 

13 14 9.7 9.7 12 12 5.8 9.7 8.7 18 12 13 9.7 9.2 11 12 5.8 9.2 7.8 13 12 12 9.7 9.2 10 11 6.2 8.7 7.4 11 19 8.2 11 12 9.7 8.7 11 10 5.8 8.7 8.2 10 20 7.8 

21 8.7 22 8.7 23 9.2 24 9.2 25 9.2 

11 12 9.2 8.7 9.7 9.7 5.4 8.7 8.2 8.7 

10 12 9.7 9.2 9.7 8.7 5.4 8.2 7.8 7.8 11 11 9.2 11 10 8.2 5.4 8.2 7.4 7.0 11 11 9.7 10 28 8.7 6.2 8.2 7.8 9.2 11 11 11 9.7 16 8.2 27 7.8 8.2 6.6 11 12 46 9.7 27 6.7 16 7.8 8.7 5.4 

26 8.7 10 11 17 16 18 12 12 7.8 9.2 4.8 27 9.2 10 11 16 12 16 14 11 7.4 10 4.2 28 9.2 10 10 12 10 14 10 9.2 7.8 9.7 4.2 29 9.2 10 11 11 9.2 13 9.7 8.2 7.4 8.2 4.2 30 9.2 12 11 - 9.7 12 9.7 7.8 7.4 8.2 4.2 31 8.7 12 11 9.7 9.2 7.4 9.2 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 280.3 9.7 7.8 9.04 556 November 322.4 13 8.7 10.7 639 December 354 13 10 11.4 702 

Calendar year 1947 9,123.5 1,410 5.1_1 25.0 18,120 - - January 345.7 14 9.7 11.2 688 February 353.9 46 8.7 12.2 702 March 314.1 16 8.7 10.1 623 April 403.6 45 8.7 13.5 801 May 488.6 141 8.2 15.8 969 June 249.0 27 3.9 8.30 494 July 346.0 38 7.4 11.2 686 August 390.2 74 7.4 12.6 774 September 348.5 67 4.2 11.6 691 

Water year 194/-48 4,197.3 141 3.9 11.5 8,320 , Peak discharge base, 1,000 sec.-ft.).- No peak above base. 
GUADALUPE RIVER BASIN 181 

Comal River at New Braunfels, Tex. 

Location.- Water-stage recorder, lat. 29°42'05", long. 98°07'10", 200 feet upstream from 

San Antonio Street viaduct in New Braunfels, Comal County, and 1.1 miles upstream from 

mouth. Datum of gage is 582.80 feet above mean sea level, datum of 1929. 

Drainage area.- 94 square miles. Ordinary flow of river comes from springs; drainage area 

or stream not applicable. 

Records available.- December 1927 to September 1948. 1882 to November 1927 (discharge 

measurements only). 

Average discharge.- 16 years (1932-48), 341 second-feet. 

Extremes.- Maximum daily discharge during year, 319 second-feet Oct. 1, 13; maximum gage 

height, 5.40 feet June 25 (backwater from Guadalupe River); minimum daily discharge, 

251 second-feet Aug. 7, 23, 24. 

1927-48: Maximum gage height, 30.71 feet June 15, 1935, from floodmarks (backwater 

from Guadalupe River; discharge not determined); minimum discharge, about 142 secondfeet Dec. 11, 1928 (gage height, 2.12 feet); minimum daily, 245 second-feet July 17, 

20, 1939. 

Maximum stage known, 35.4 feet December 1913, from floodmarks (probably some backwater from Guadalupe River). 

Remarks.- Records excellent. Flow partly regulated by steam power plant half a mile above 

station. Entire flow of river from Comal Springs, about 1 mile above station, except 

during pericds of local rain. Springs emerge from the Edwards limestone in the Balcones fault zone. 

Rating table, water year 1947-48 (gage height, in feet, and discharge, in second-feet) (Shifting-control method used July 1 to Sept. 30) 

2.5 241 2.6 265 2.7 291 2.8 319 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

308 308 302 305 291 278 273 268 258 305 308 297 299 291 283 278 265 255 305 305 291 302 294 281 270 260 255 305 305 291 299 294 281 286 260 255 305 302 294 299 294 275 268 258 253 

305 302 291 299 294 273 268 258 253 

305 302 291 302 291 275 270 251 253 302 305 294 299 288 273 270 253 253 302 305 291 299 288 278 270 255 255 299 305 294 299 288 278 273 253 258 

1 319 2 316 3 313 

4 316 

5 1 316 

6 313 

N mO nN

,:3im)sr?), :Ali

7 311

8 311

9 316 

10 316 

11 316 299 302 291 297 288 278 268 255 258 

12 313 302 308 294 297 288 273 268 255 260 

13 319 299 311 297 297 288 275 270 255 258 

14 313 299 311 294 294 288 278 265 253 262

15 313 299 308 294 294 288 281 265 253 262 

16 311 299 308 297 294 286 281 268 258 260 17 308 299 308 297 294 283 278 265 255 260 18 305 299 313 297 294 281 278 268 255 260 19 308 302 311 297 294 281 275 265 255 262 20 311 305 313 302 294 281 275 268 260 260 

21 311 305 313 302 291 281 278 268 253 260 22 308 305 313 302 288 278 275 265 253 262 23 311 309 313 302 291 278 278 262 251 262 24 311 311 311 299 291 278 275 260 251 260 25 311 308 313 299 299 278 c278 260 255 260 

26 308 313 311 299 297 278 278 262 262 260 27 311 311 311 299 291 278 275 260 268 255 28 311 311 311 305 291 278 281 260 265 258 29 311 308 308 297 291 275 283 260 265 258 30 308 313 302 291 278 278 260 265 258 31 308 308 - 305 - 275 - 258 258 -

Second- Runoff in Month foot-days acre-feet Maximum Minimum Mean 

October 9,673 319 305 312 19,190 

November 9,272 313 305 309 18,390 

December 9,57G 313 305 309 18,990 

Calendar year 1947 130,025 823 305 356 257,900 

January 9,444 313 299 305 18,730 February 8,944 313 302 308 17,740 March 9,207 305 291 297 18,260 April 8,872 305 288 296 17,600 May 8,820 294 275 285 17,490 June 8,326 283 273 278 16,510 July 8,271 286 258 267 16,410 August 7,981 268 251 257 15,830 September 7,743 262 253 258 15,360 

Water year 1947-48 106,129 319 251 290 210,500 

Peak discharge (base, 1,100 sec.-ft..- No peak above base. 

c Stage-discharge relation affected y backwater from Guadalupe River. 
182 GUADALUPE RIVER BASIN 

San Marcos River at Luling, Tex. 

Lo:ation.- Water-stage recorder, lat. 29°39'55", long. 97°391 05", 390 feet downstream 

from bridge on State Highway 80, 1 mile south of Luling, Caldwell County, and 8 miles 

upstream from Plum Creek. Datum of gage is 322.0 feet above mean sea level, datum of 

1929. 

Drainage area.- 833 square miles. 

Records available.- April 1939 to September 1948. 

Extremes.- Maximum discharge during year, 1,170 second-feet May 12 (gage height, 10.00 

feet); minimum, 36 second-feet Jan. 9, Apr. 20; minimum daily, 66 second-feet Aug. 22. 

1939-48: Maximum discharge, 29,500 second-feet July 5, 1942 (gage height, 32.93 

feet); minimum, 7.7 second-feet May 21, 1943; minimum daily, 55 second-feet Oct. 15, 

1939. 

Maximum stage known, 40.4 feet in 1869 and 1870, from information by engineers of 

State Highway Department. 

Remarks.- Records good except those for periods of rapidly changing stage, which are 

fair. Flow regulated by power plant 800 feet above station. Discharge is mostly 

from large springs near San Marcos. No large diversion above station. 

Revisions (water year).- W 958: 17,40. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 149 158 128 133 144 137 131 123 119 190 88 87 

2 146 121 134 128 157 143 122 120 116 132 120 82 3 153 135 144 129 170 133 126 126 117 126 113 79 4 155 126 139 135 131 137 126 117 115 131 97 87 5 150 131 141 132 170 135 125 111 117 123 102 74 

6 139 132 132 133 140 135 129 129 104 119 101 89 7 147 134 137 133 145 128 122 158 119 119 91 88 8 138 129 147 132 145 134 126 116 116 111 83 92 9 147 128 151 131 141 133 115 119 111 108 91 114 10 146 144 132 135 138 137 120 116 110 98 97 119 

11 150 131 139 127 140 139 115 395 101 152 97 91 12 145 125 139 138 135 135 119 542 88 104 97 108 13 137 141 139 133 138 133 119 578 92 107 87 102 14 146 141 139 134 135 134 119 258 98 107 89 98 15 149 135 183 135 133 135 110 218 95 109 84 87 

16 141 138 137 126 137 138 123 216 114 105 92 90 17 137 149 158 140 135 133 94 153 107 86 91 91 18 14. 135 121 135 131 131 119 133 92 100 91 92 19 149 146 158 132 . 139 143 86 234 97 102 91 92 20 143 125 141 138 134 144 76 164 107 98 83 92 

21 147 141 125 137 135 137 100 111 93 86 86 100 22 135 144 150 134 149 141 106 120 104 89 66 92 23 141 140 121 137 138 128 107 127 107 95 71 94 24 139 132 133 134 140 133 108 126 104 102 94 87 25 152 135 131 143 143 117 141 121 108 105 95 94 

26 126 139 134 138 140 140 149 239 108 102 94 86 27 146 132 134 113 140 128 111 546 108 106 93 88 28 146 134 134 127 138 128 125 183 93 102 98 88 29 170 132 134 137 139 134 115 128 106 101 90 91 30 176 133 131 139 - 128 119 121 219 97 85 93 31 167 - 131 133 - 131 - 123 98 91 -

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 4,559 176 126 147 9,040 November 4,066 158 121 136 8,060 December 4,297 183 121 139 8,520 

Calendar year 1947 126,086 4,770 121 345 250,100 

January 4,131 143 113 133 8,190 February 4,100 170 131 141 8,130 

March 4,162 144 117 134 8,260 April 3,503 149 76 117 6,950 May 6,070 578 111 196 12,040 

June 3,285 219 88 110 6,520 July 3,410 190 86 110 6,760 

August 2,848 120 66 91.9 5,650 September 2,767 119 74 92.2 5,490 

Water year 1947-48 47,198 578 66 129 93,610 

Peak discharge (base, 6,300 sec.-ft.).- No peak above base. 
		

GUADALUPE RIVER BASIN 183 

Blanco River at Wimberly, Tex. 

Location.- Water-stage recorder, lat. 29°59', long. 98°04', 800 feet downstream from 

---LTTOUEs Creek, 1,200 feet upstream from bridge on State Highway 12, and a quarter of 

of a mile south of Wimberly, Hays County. Datum of gage is 802.2 feet above mean 

sea level, datum of 1929. 

Drainage area.- 378 square miles. 

Records available.- August 1924 to September 1926, June 1928 to September 1948. 

Average discharge.- 22 years, 113 second-feet. 

Extremes.- Maximum discharge during year, 2,850 second-feet May 11 (gage height, 4.20 

feet); minimum, 7.2 second-feet Aug. 17-21, Sept. 26, 27. 

1924-26, 1928-48: Maximum discharge, 113,000 second-feet May 28, 1929 (gage height, 

31.10 feet, from floodmarks), by slope-area method; minimum, 2.9 second-feet Oct. 5, 6, 

1940. 

Remarks.- Records excellent. No diversion above station. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 20 2 20 

,.22&1222 2n222 2.: ;',Z222 22222222 '-'. 2 i' 

22 17 17 15 14 22 12 11 27 15 17 15 12 27 15 11 

r8 '8 '8 222 ',, ;.1

18`c3 

"8a. 55 '5 '5 '82'5 '5 ',T.' 5'8 2255 '8'5r8a"8'8`8 1

(1 "8 5 '8

3 22 

'5

4 20 5 20 

6 20 7 18 8 23 9 27 10 23 

11 22 12 22 13 22 

27 15 17 15 12 36 15 11 23 15 17 18 12 27 14 11 23 15 17 15 12 23 12 9.6 

22 14 17 18 12 22 11 9.6 20 14 17 15 12 18 11 9.6 20 15 17 14 12 17 9.6 9.6 18 17 17 14 14 17 9.6 14 18 15 15 14 14 17 9.6 15 

18 17 14 1,050 14 18 8.4 14 18 15 14 319 12 85 8.4 12 18 15 20 82 12 36 8.4 11 14 22 18 15 15 44 11 20 8.4 9.6 15 22 18 15 15 29 11 20 9.6 9.6

16 22 18 15 17 25 11 18 8.4 9.6 17 22 18 15 17 23 11 17 8.4 11 18 22 18 15 15 22 11 18 7.2 11 19 22 18 15 14 27 9.6 17 7.2 11 20 20 15 14 25 9.6 15 7.2 9.6 

27 15 15 22 9.6 14 9.6 9.6 20 18 18 20 9.6 14 9.6 9.6 18 17 20 18 9.6 12 8.4 9.6 20 17 15 18 11 12 8.4 9.6 20 17 25 18 12 12 28 9.6 

20 

21 20 22 20 23 ?0 24 20 25 20 

26 20 20 17 17 18 14 12 17 8.4 27 22 22 17 14 15 11 11 19 7.2 28 18 ' 17 15 15 126 11 12 8.4 15 17 17 15 217 9.6 14 8.4 17 15 15 31 8.4 14 8.4 - 17 15 8.4 12 

22 29 22 30 22 31 22 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 661 27 18 21.5 1,310 November 619 23 18 20.6 1,230 December 642 31 18 20.7 1,270 _ Calendar year 194? 35,980 852 18 98.6 71,360 

January 596 22 18 19.2 1,180 February 582 27 15 20.1 1,150 March 490 18 14 15.8 972 April 494 25 14 16.5 980 May 1,988 1,050 14 64.1 3,940 June 689.0 217 9.6 23.0 1,370 July 614.4 85 8.4 19.8 1,220 

August 352.4 28 7.2 11.4 b99 

September 308.6 15 7.2 10.3 612 

Water year 1947-48 8,036.4 1,050 7.2 22.0 15.930 

Peak discharge (base, 1,800 sec.-ft.).- May 11 (11 a.m.) 2,850 sec.-ft.; June 28 (10 p m.) 1,860 s.c.-ft. 

905771 0- 50 - 13 
184 GUADALUPE RIVER BASIN 

Plum Creek near Luling, Tex. 

Location.- Water-stage recorder, lat. 29°42,, long. 97°37', at county highway bridge 

1 mile downstream from West Fork Plum Creek, 2 miles upstream from Texas & New Orleans 

Railroad bridge, 3 miles northeast of Luling, Caldwell County. Datum of gage is 326.6 

feet above mean sea level, datum of 1929. 

Drainage area.- 356 square miles. 

Records available.- March 1930 to September 1948. 

Average discharge.- 18 years, 102 second-feet. 

Extremes.- Maximum discharge during year, 1,380 second-feet May 27 (gage height, 11.88 

feet); minimum, 0.5 second-foot Sept. 28. 

1930-48: Maximum discharge, 78,500 second-feet July 1, 1936 (gage height, 25.7 

feet, from floodmarks), from rating curve extended above 54,000 second-feet; minimum, 

that of Sept. 28, 1948. 

Flood in December 1913 reached about same stage as that of July 1, 1936, from information by local residents. 

Remarks... Records good. Slight regulation at low flow by oil-field operation above 

station. No diversion above station. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. 

1 7.7 5.9 7.4 9.1 12 

[

,,,,....co o co o8i=":w w w 8ww w ww w. 888,58 .=,

;.:r.;.',Ob ;A in ',.) -...., ;-,.o ;:n ;-;-. 

Mar. Apr. May June July Aug. Sept. 

7.4 8.0 7.7 20 2.4 1.3 2 7.7 5.4 7.4 9.1 15 7.4 8.0 6.8 8.4 7.7 1.1 3 7.4 5.4 8.0 9.1 20 7.1 8.0 5.6 9.6 11 1.1 4 7.4 5.9 9.1 9.1 18 7.1 8.0 5.4 8.6 4.1 1.0 5 7.4 5.9 10 9.1 15 7.4 7.7 5.2 5.9 2.9 1.0

6 7.1 6.2 9.1 9.7 14 7.1 8.0 4.9 5.6 2.7 1.0 7 7.1 5.9 8.6 9.7 14 7.4 11 4.9 4.5 2.6 1.0 8 7.4 5.9 13 9.7 13 7.4 8.3 4.9 4.1 2.6 .9 9 7.4 5.9 9.7 10 12 7.4 7.4 4.7 3.6 2.6 2.0 10 7.4 6.2 8.0 11 11 7.1 6.5 4.3 7.4 2.6 5.9 

11 7.1 6.2 7.4 11 11 7.1 29 7.3 36 2.4 4.1 12 7.1 6.5 7.4 11 11 7.1 237 18 5.4 2.4 2.4 13 7.1 6.5 8.0 11 11 6.8 30 7.4 4.5 2.4 1.7 14 6.8 7.1 8.0 10 11 6.5 14 5.2 3.8 1.7 1.5 15 6.5 7.1 15 9.7 11 

16 6.5 6.8 14 11 11 17 6.5 6.8 8.6 11 11 18 6.5 10 8.0 11 11 19 6.5 9.1 8.3 11 11 20 6.2 7.7 8.0 12 12 

7.1 8.3 4.5 3.8 1.7 1.5 

6.8 7.1 4.7 3.8 1.6 1.3 

6.8 6.8 4.5 3.6 1.6 1.5 6.8 5.6 4.1 3.2 1.7 1.6 

6.8 81 3.4 3.2 1.5 1.6 

6.8 53 3.1 3.2 1.2 1.9 

21 6.5 7.7 8.0 12 16 7.4 16 2.9 3.2 1.2 1.7 22 7.1 7.7 8.0 12 17 7.7 7.7 3.1 3.1 1.1 1.5 23 7.4 8.0 8.0 11 12 24 7.4 7.4 8.0 11 11 25 7.4 7.4 8.0 11 11 

26 7.4 7.4 8.0 11 11 27 6.8 7.7 8.0 13 11 28 6.8 7.4 8.0 15 14 29 6.8 7.4 8.0 14 12 30 6.8 7.4 8.6 12 31 6.8 9.1 12 

-

-

7.7 5.2 2.9 3.1 1.1 1.3 

8.6 4.9 2.9 3.1 1.2 1.2 

13 4.9 2.9 3.1 1.2 1.2 

23 422 3.4 3.1 1.3 1.0 

11 972 7.2 2.7 2.4 .9 

7.7 336 5.2 2.6 16 .7 

7.1 24 159 2.4 5.5 .6 

6.5 15 108 2.2 2.0 

- 9.1 - 2.2 1.5 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 218.0 7.7 6.2 7.03 432 November 207.9 10 5.4 6.93 412 December 272.7 15 7.4 8.80 541 _ - Calendar year 194/ 40,009.5 10,600 5.2 110 79,360 

January 338.3 15 9.1 10.9 671 February 370 20 11 12.8 734 March 293.2 12 7.4 9.46 582 April 241.1 23 6.5 8.04 478 May 2,369.5 972 4.9 76.4 4,700 June 414.1 159 2.9 13.8 821 July 179.0 36 2.2 5.77 355 August 93.9 16 1.1 3.03 186 September 46.1 5.9 .6 1.54 91 

Water year 1947-48 5,043.8 972 .6 13.8 10,000 

Peak discharge (base, 2,600 sec.-ft.).- No peak above base. 
GUADALUPE RIVER BASIN 185 

Coleto Creek near Victoria, Tex. 

Location.- Water-stage recorder, lat. 28°43., long. 07°081 , at bridge on U. S. Highway 59, 

100 Feet upstream from Texas & New Orleans Railroad bridge, 1.1 miles downstream from 

Perdido Creek, and 9.4 miles southwest of Victoria, Victoria County. Datum of gage is 

49.2 feet above mean sea level, datum of 1929. 

Drainage area.- 514 square miles. 

Records available.- June 1939 to September 1948. 

Extremes.- Maximum discharge during year, 4,260 second-Feet May 24 (gage height, 8.78 

feet); no flow Aug. 15, 16. 

1939-48: Maximum discharge, 89,000 second-feet Oct. 16, 1946 (gage height, 31.64 

feet, from floodmark, by slope-area method); no flow at times. 

Maximum stage known prior to October 1946, 27.2 feet July 1, 1936, at railroad 

bridge 100 feet below gage, from information by railroad company. 

Remarks.- Records good. No large diversions above station. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 2.2 3.0 5.6 7.4 9.6 14 9.9 9.6 18 37 0.6 1.6 2 2.4 2.2 5.6 7.4 95 12 10 8.3 15 44 .7 1.5 3 2.4 2.4 5.9 7.4 165 12 9.6 7.4 13 42 .7 1.4 4 2.4 2.4 8.4 7.1 59 11 9.3 6.5 12 47 .6 1.0 5 2.8 2.4 12 7.1 39 16 9.6 6.2 11 34 .6 1.0 

6 2.6 2.6 11 6.8 26 28 9.6 5.1 9.3 16 1.2 .9 7 2.4 1.6 9.6 7.1 21 18 8.9 5.1 8.0 11 .8 .8 8 2.2 1.6 7.7 7.1 20 32 8.9 5.3 7.4 8.9 .6 1.0 9 2.4 1.8 7.4 7.1 20 54 8.6 5.3 6.5 7.1 .4 3.0 10 3.0 2.6 6.5 6.8 17 48 8.3 5.3 6.6 5.9 .3 5.1 

11 2.8 6.6 6.8 6.8 15 24 8.6 8.1 8.2 4.6 .3 5.6 12 2.6 6.8 8.0 6.8 14 18 8.3 15 5.1 3.8 .3 4.0 13 3.0 5.9 15 8.3 13 15 7.7 14 4.6 3.3 .3 2.8 14 2.6 8.0 14 8.0 12 14 7.7 31 3.5 3.0 .2 2.2 15 2.4 6.2 30 7.4 12 15 7.1 15 3.3 2.4 .1 1.8 

16 2.2 5.3 20 7.1 11 13 7.1 9.6 2.8 2.0 .4 1.6 17 2.2 5.1 15 8.3 11 12 6.5 7.4 2.6 2.8 3.5 2.6 18 2.2 5.6 13 7.1 12 12 6.2 6.2 2.2 2.2 1.8 3.5 19 3.0 5.1 11 12 12 12 6.2 8.0 1.8 1.8 1.0 3.0 20 3.3 5.1 9.9 24 10 12 6.2 22 1.6 1.6 .8 2.4 

21 2.6 5.3 8.9 19 13 12 6.2 8.3 1.6 1.6 .6 1.8 22 2.2 8.6 8.6 13 19 11 6.2 5.6 1.6 1.2 .5 1.5 23 2.2 9.6 7.7 10 29 10 8.3 4.6 1.5 1.0 .5 1.4 24 2.2 7.4 7.1 9.6 24 10 8.9 774 1.4 1.0 3.8 1.2 25 2.2 6.5 6.8 8.9 20 10 16 463 1.4 .9 9.8 1.2 

26 2.2 8.6 6.8 9.6 18 11 16 278 1.2 .8 7.4 .8 27 2.2 8.6 6.8 11 16 9.6 13 239 1.2 .7 4.8 .6 28 2.2 7.1 6.8 9.9 16 8.9 17 75 1.2 .6 3.3 .5 29 4.8 6.5 7.1 9.9 14 9.3 13 42 1.0 .5 2.8 .6 30 5.6 5.9 7.4 9.9 '- 9.3 11 30 3.4 .5 2.4 .7 31 4.3 8.3 9.6 - 9.3 23 - .5 2.0 

Month Secondfoot-days Maximum Minimum Mean Runoff in 

acre-feet 

October 83.8 5.6 2.2 2.70 166 November 156.4 9.6 1.6 5.21 310 December 304.7 30 5.6 9.83 604 

Calendar year 1947 20,645.9 5,340 1.6 56.6 40,960 

January 

February 

March 

287.5 

762.6 

502.4 

24 

165 

54 

6.8 

9.6 

8.9 

9.27 

26.3 

16.2 

570 1,510 996 April 

May 

June 

279.9 2,142.9 158.0 17 

774 

18 

6.2 

4.6 

1.0 

9.33 

69.1 

5.27 

555 4,250 313 July 

August 

September 

289.7 

53.1 

57.1 

47 

9.8 

5.6 

.5 

.1 

.5 

9.35 

1.71 

1.90 

575 

105 

113 

Water year 1947-48 5,078.1 774 .1 13.9 10,070 

Peak discharge (base, 2,600 sec.-ft.).- May 24 (6 p.m.) 4,260 sec.-ft. 
186 GUADALUPE RIVER BASIN 

San Antonio River at San Antonio, Tex. 

Location.- Water-stage recorder, lat. 29°24,35", long. 98°29,40", at South Alamo Street 

bridge in San Antonio, Bexar County, 2.1 miles upstream from San Pedro Creek. Datum 

of gage is 612.3 feet above mean sea level, datum of 1929. 

Drainage area.- 42 square miles. Normal flow of river comes from springs; drainage area 

or stream not applicable. 

Records available.- January 1915 to November 1929, February 1939 to September 1948. 

hstimated monthly ground-water discharge contained in Water-Supply Paper 773-B. 

Average discharge.- 23 years (1915-29, 1939-48), 71.1 second-feet. 

Extremes.- Maximum discharge during year, 2,840 second-feet Aug. 26 (gage height, 10.60 

feet); minimum, 3.9 second-feet June 16; minimum daily, 14 second-feet Apr. 16, June 17, 

18, 20. 

1915-29, 1939-48: Maximum discharge, 15,300 second-feet Sept. 10, 1921 (gage height, 

20.14 feet, from floodmark), by slope-area method; no flow at times because of regulation. 

Flood of July 5. 1819, equaled or exceeded that of Sept. 10, 1921. 

Remarks.- Records good. Flobd flow regulated by Olmos flood-control reservoir (capacity, 

ib,b00 acre-feet) about 8f miles above station. Dam completed In 1926. Normal flow 

of river comes from springs located about 8 miles above station. Springs emerge from 

Edwards limestone formation in Balcones fault zone. Diurnal fluctuation caused by industrial pumping from wells (depleting the underground reservoir) above station. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 25 24 24 24 40 28 25 26 20 21 24 24 2 26 24 24 24 40 25 26 26 21 25 26 24 3 26 25 26 25 28 25 26 29 19 111 25 28 4 26 24 24 24 23 26 24 30 18 53 26 31 5 25 22 24 25 28 25 25 32 18 21 26 28 

6 27 24 24 25 26 26 33 32 19 24 27 29 7 27 22 24 24 27 26 27 21 18 23 26 31 8 26 24 38 25 26 27 24 25 19 23 25 46 9 27 24 . 24 25 26 30 19 38 18 23 28 84 10 27 26 24 26 26 27 19 31 19 22 28 21 

11 27 24 23 25 26 25 26 87 20 26 29 21 12 26 24 24 27 25 24 16 31 17 22 28 18 13 28 26 25 24 25 25 21 18 15 23 27 19 14 28 27 41 24 25 25 22 21 15 24 27 20 15 27 26 37 24 25 27 28 24 15 24' 26 20 

16 27 25 23 24 30 26 14 24 15 24 29 19 17 27 38 24 23 29 25 17 23 14 24 28 21 18 27 22 24 23 24 26 18 20 14 22 28 23 19 25 24 25 28 26 26 20 21 15 24 28 20 20 25 24 24 24 25 26 21 21 14 24 28 20 

21 25 25 24 23 45 25 21 21 15 24 26 20 22 24 26 25 24 22 32 26 20 15 24 24 29 23 24 24 24 23 28 25 34 22 15 24 26 15 24 24 24 23 23 28 25 22 20 17 24 30 20 25 25 26 23 24 32 25 46 25 55 23 39 20 

26 24 26 24 27 27 25 23 27 27 25 807 17 27 26 23 24 24 33 26 22 23 21 25 51 17 28 26 24 24 25 28 24 23 23 29 24 27 17 29 29 24 24 24 26 31 24 22 27 24 27 20 30 25 73 25 24 22 25 20 21 24 27 17 31 25 25 24 - 25 18 24 26 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 806 29 24 26.0 1,600 November 744 38 22 24.8 1,480 December 791 41 23 25.5 1,570 

Calendar year 1947 23,754 166 22 65.1 47,120 

January 758 28 23 24.5 1,500 February 819 45 22 28.2 1,620 March 805 32 22 26.0 1,600 April 717 46 14 23.9 1,420 May 821 87 18 26.5 1,630 June 585 55 14 19.5 1,160 July 848 111 21 27.4 1,680 August 1,649 807 24 53.2 3,270 September 719 64 15 24.0 1,430 

Water year 1947-48 10,062 807 14 27.5 19,960 
 

GUADALUPE RIVER BASIN 187 

San Antonio River near Falls City, Tex. 

Location.- Water-stage recorder, lat. .8°57'05", long. 98°03'55", at county road bridge 

U.9 mile upstream from Scared Dog Creek and 3.6 miles southwest of Falls City, Karnes 

County. Datum of gage is 285.5 feet above mean sea level, datum of 1929. 

Drainage area.- 2,071 square miles. 

Records avallaole.- April 1925 to September 1948. 

Average discharge.- 23 years, 328 second-feet. 

extremes.- Maximum discharge during year, 10,300 second-fee;. Aug. 26 (gage ;;eight, 13.68 

Feet); minimum, 66 second-feet Aug. 16, 21. 

19e5-48: Maximum discharge, 47,400 second-feet Sept. 29, L,46 (gage height, 33.80 

feet, from floodmark); minimum, 36 second-feet May 11, 12, 1228. 

Maximum stage known, that of Sept. 29, 1946. Flood of October 1913 reached a stage 

of 28.36 feet, from information by local residents. 

Remarks.- Records good except those for period of no gage-height record, which are fair. 

Flow partly regulated by Medina Lake and Olmos flood-control reservoir (combined capacity, 269,500 acre-feet). Storage began in Medina Lake in 1913, and Clmos Dam was completed In 1926. Water diverted above station from Medina River for irrigation in vicinity of Devine and Lytle, and some water diverted for irrigation near San Antonio. Water 

used Industrially in San Antonio. 

Rating table, water year 1947-48 (gage height, in feet, and discharge, In second-feet) 

0.9 44 2.0 515 4.0 2,260 1.1 109 2.3 705 5.0 3,300 1.3 179 2.6 925 5.5 3,820 1.5 257 3.0 1,270 1.7 348 3.5 1,760 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 

2 175 179 194 

190 225 221 225 225 225 

225 206 198 202 194 179 193 116 119 1,330 501 92 

89 165 154 3 183 187 229 225 253 194 187 187 119 409 96 143 4 187 190 225 221 343 202 183 175 112 590 106 133 5 194 190 229 217 329 206 172 172 112 775 99 136 

6 194 187 249 209 292 202 168 165 112 627 89 133 7 198 175 249 213 275 202 172 161 106 426 89 126 8 187 197 245 209 261 202 187 172 106 301 79 133 9 187 213 241 209 253 206 168 154 106 245 83 136 10 190 229 257 209 249 229 161 126 92 221 79 229 

11 194 237 253 202 253 237 157 136 86 401 89 552 12 190 217 233 209 249 233 157 172 79 194 79 404 13 179 198 225 209 249 229 172 320 96 168 83 253 14 179 194 229 209 249 221 179 288 96 306 76 198 15 175 209 253 202 249 202 172 202 96 206 73 198 

16 175 213 261 209 241 198 165 165 102 165 73 175 17 183 679 393 213 202 198 161 154 89 157 79 165 18 179 318 301 203 190 198 147 140 89 147 89 150 19 190 233 245 209 194 187 136 136 83 116 76 161 20 198 221 241 221 190 183 136 123 89 112 73 154 

21 198 217 229 233 202 194 140 119 83 129 70 165 22 190 217 225 245 .261 194 154 119 86 129 73 165 23 175 225 225 233 315 209 154 116 96 112 76 154 24 172 233 225 221 283 245 150 96 92 106 76 143 25 168 237 225 225 237 198 225 10? 92 102 92 143 

26 

27 177 

183 225 221 225 221 245 

233 233 241 179 

179 261 

378 140 

123 96 123 102 3,480 106 972 133 

129 28 

29 

30 

190 

190 

187 

217 

217 

233 

229 

229 

225 

241 

241 

229 

237 

229 194 

190 

183 

292 

241 

202 

172 

136 

119 

288 

252 

870 

112 

102 

96 

2,260 

1,450 332 

126 

136 

129 31 194 229 233 - 202 116 96 202 

Month Secondfoot-days Maximum Minimum Mean Runoff in 

acre-feet 

October 

November 

December 

5,735 

6,903 

7,491 

198 

679 

393 

168 

175 

221 

185 

230 

242 

11,380 

13,690 

14,860 _ Calendar year 1947 111,493 1,800 168 305 221,200 

January 

February 

March 

April 

May 

June 

July 

August 

September 

6,833 

7,209 

6,300 

5,573 

4,868 

4,083 

8,589 

10,774 

5,321 

245 

343 

245 

378 

320 

870 1,330 

3,480 552 

202 

190 

179 

136 

96 

79 

96 

70 

126 

220 

249 

203 

186 

157 

136 

277 

348 

177 

13,550 

14,300 

12,500 

11,050 

9,660 

8,100 

17,040 

21,370 

10,550 

Water year 1947-48 79,679 3,480 70 218 158,000 

sePe discharge (base, 1,800 sec.-ft.).- Aug. 26 (12 m.) 10,900 sec.-ft.; Aug. 78 (6 p.m.) 2,410 

Rote.- No gage-height record No-. 17 to Dec. 7, Apr. 2-15; discharge computed on basis of recorded range In stage and wire-weight gage readings at location 6 miles downstream. 
188 GUADALUPE RIVER BASIN 

San Antonio River at Goliad, Tex. 

Location.- Water-stage recorder, lat. 28°39', long. 97°23', at bridge on State Highway 29, 

1.3 miles southeast of courthouse in Goliad, Goliad County, and 10 miles upstream from 

Manahuilla Creek. Datum of gage is 91.1 feet above mean sea level, datum of 1929, 

Houston supplementary adjustment of 1943. 

Drainage area.- 3,918 square miles. 

Records available.- June 1924 to March 1929, February 1939 to September 1948. 

Average discharge.- 13 years (1924-28, 1939-48), 588 second-feet. 

Extremes.- Maximum discharge during year, 10,200 second-feet Aug. 28 (gage height, 29.41 

feet); minimum, 97 second-feet Aug. 23, 24 (gage height, 2.73 feet). 

1924-29, 1939-48: Maximum discharge, 33,800 second-feet July 9, 1942 (gage height, 

44.9 feet); minimum observed, 44 second-feet for several periods in 1927. 

Floods of October 1913 and June 15, 1935, reached about the same stage as that of 

July 9, 1942. 

Remarks.- Records good except those for period when loop curve was used, which are fair. 

water diverted above station from Medina River for irrigation in vicinity of Devine and 

Lytle and some water diverted for irrigation near San Antonio. Water used industrially 

in San Antonio. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 205 231 249 263 272 281 227 290 175 425 130 434 

2 211 229 263 263 281 281 245 243 162 1,130 141 317 3 225 236 241 263 290 250 250 214 157 1,440 125 254 

4 220 234 254 263 281 236 236 209 157 944 128 216 5 220 231 263 263 299 240 231 211 160 668 123 193 

6 225 231 263 254 389 252 227 202 150 744 130 171 7 232 238 272 254 389 252 227 195 144 902 130 159 8 232 234 281 247 353 249 214 189 148 687 120 159 9 236 225 281 250 326 252 229 184 142 506 121 163 10 236 223 290 252 308 281 234 186 141 389 111 744 

11 229 263 290 245 299 344 229 189 137 326 111 488 12 232 290 299 250 299 290 213 228 132 344 110 380 13 236 290 308 243 290 290 205 620 128 452 113 524 14 232 299 290 241 290 281 195 308 118 398 113 407 15 227 263 290 247 290 272 182 371 120 263 108 290 

16 216 254 299 252 299 272 193 362 125 344 108 223 17 220 254 326 240 299 247 189 281 121 263 105 231 18 214 272 317 245 281 238 189 214 123 205 105 697 19 225 590 425 272 249 240 189 196 120 196 105 495 20 220 479 362 263 232 240 175 180 110 187 111 281 

21 229 281 299 254 240 229 162 169 110 159 110 220 22 238 272 281 263 249 223 155 162 111 144 101 193 23 236 281 272 272 288 231 160 151 111 155 98 191 24 231 263 263 281 362 231 177 159 108 160 98 191 25 214 254 263 281 371 243 182 578 118 144 103 178 

26 211 272 263 263 344 281 418 1,020 120 135 110 168 27 209 281 263 272 299 245 538 1,110 114 128 e2,450 193 28 211 263 263 290 281 220 326 425 114 126 e9,070 166 29 222 250 263 272 281 216 407 254 125 128 e6,460 160 30 236 254 263 281 - 240 353 249 294 137 01,820 150 31 236 263 290 240 216 130 e895 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 6,966 238 205 225 13,820 November 8,237 590 223 275 16,340 December 8,819 425 241 284 17,490 

Calendar year 1947 160,026 3,550 204 438 317,400 

January 8,089 290 240 261 16,040 February 8,731 389 232 301 17,320 March 7,887 344 216 254 15,640 April 7,157 538 155 239 14,200 May 9,565 1,110 151 309 18,970 June 4,095 294 108 136 8,120 July 12,359 1,440 126 399 24,510 August 23,663 9,070 98 763 46,930 September 8,636 744 150 288 17,130 

Water year 1947-48 114,204 9,070 98 312 226,500 

Peak discharge (base,_2,200 sec.-ft.).- Aug. 28 (11 p.m.) 10,200 sec.-ft. 

e Discharge computed -7%m loop curve. 
		

			

		

		

			

		

		

		

		

		

		

		

		

		

		

		

		

GUADALUPE RIVER BASIN 189 

Medina Lake near San Antonio, Tex. 

Location.- Staff gage, lat. 29°32., long. 98°56., at Medina Dam on Medina River, 4 miles 

upstream from Medina diversion dam, 13 miles north of Castrovilie, and about 28 miles 

west of San Antonio, Bexar County. 

Drainage area.- 587 square miles. 

Records available.- May 1913 to September 1948. 

Extremes.- 1947-48: Maximum contents observed during water year, 46,520 acre-feet Oct. 1 (gage height, 1.011.2 feet); minim-,observed, 780 acre-feet about Apr. 11 (gage height, 944.0 feet). 

1913-48: Maximum contents observed, 288,800 acre-feet Sept. 16, 1919 (gage height, 

1,078.0 feet); minimum observed since reservoir filled, that of about Apr. 11, 1948. 

Remarks.- Lake is formed by concrete gravity-type dam. Dam completed and storage began 

^7, 1913. Spillway section is natural rock with a 3-foot.wide cut-off wall located near right end of dam. 

Total capacity, 254,000 acre-feet (gage height, 1.072.0 feet, top of spillway 

section). Water for irrigation is supplied by three 60-inch pipes equipped with 

vertical lift gates, at gage height 966.5 feet (capacity, 4,780 acre-feet). Reservoir 

can be emptied by two 30-inch sluice pipes equipped with vertical lift gates, at gage 

height 920.0 feet. Gage read once daily if stage is changing materially; otherwise 

readings are Intermittent. Time of reading gage varies. Water used for irrigation 

of lands in the Bexar, Medina, Atascosa Counties Water Control and Improvement District No. 1, which has a permit from the State Board of Water Engineers to divert 

300,000 acre-feet of water to irrigate 150,000 acres. No power is developed. 

Cooperation.- Gage-height records and capacity table furnished by Bexar, Medina, AtascJsa Counties-Water Control and Improvement District No. 1. 

Capacity table, (gage height, in feet, and contents In acre-feet) 

(Based on capacity curve prepared from topographic survey of 

reservoir by Medina Valley Irrigation Co.) 

920 0 980 12,220 1,040 114,580 

930 115 990 19,120 1,050 150,000 

940 500 1,000 30,140 1,060 192,000 

950 1,200 1,010 44,330 1,070 242,400 

960 3,050 1,020 62,580 1,080 300,330 

970 5,720 1,030 85,860 

Monthly gage height and contents, 1913-48 

Change in contents 

Date Gageo.::14ht Contents during month (acre-feet) (acre-feet) 

Apr. 30, 1913 - 0 - May 31 962.96 3,850 +3,850 

June 30 980.70 12.700 +8,850 

July 31 981.44 13,180 +480 

Aug. 31 981.44 13,180 0 

Sept.30 988.29 17,950 +4,770 

The period - - +17,950 

Oct. 31, 1913 1,016.61 56,380 +38.430 6ov. 30 1,023.85 71,430 +15,050 Dec. 31 1,049.27 147,500 +76,070 _ _ - _ 

Calendar year 1913 - +147,500 -- _ -

Jan. 31, 1914 1.050.43 151,600 +4,100 ?eb. 28 1,050.58 152,500 +900 lar. 31 1,049.39 147,800 -4,700 Ipr. 30 1,052.00 158,400 +10,600 lay 31 1,066.46 224,800 +66,400 lune 30 1,069.46 239,900 +15,100 July 31 1,068.72 235,900 -4,000 lug. 31 1,069.26 238,900 +3,000 iept.30 1,068.00 232,300 -6,600 

Water year 1913-14 -- +214,350 

Jet. 31, 1914 1,066.58 225,300 -7,000 lov. 30 1,065.71 220,700 -4,600 Sec. 31 1,064.72 215,700 -5,000 

Calendar year 1914 - - +68,200 _ --- -- - -- -- -

an. 31, 1915 1,063.79 211,200 -4,500 'el:). 28 1,063.18 208,100 -3,100 Mar. 31 1,062.56 205,100 -3,000 

A,pr. 30 1,072.66 258,100 +53,000 lay 31 1,072.68 258,100 0 J une 30 1,071.34 250,000 -8,100 J my 31 1,069.41 239,400 -10,600 A ug. 31 1,068.38 234,400 -5,000 ept.30 1,068.18 233,400 -1,000 

Water year 1914-15 - +1,100 
		

		

		

			

		

		

		

		

			

		

		

		

		

			

		

		

		

		

			

		

		

		

			

		

		

		

		

		

		

190 GUADALUPE RIVER BASIN 

Monthly gage height and contents of Medina Lake near San Antonio, Tex., 

1913-48--Continued 

Date Gage height 

(feet) Contents 

(acre-feet) 

Change in contents 

during month 

(acre-feet) 

Oct. 31. 1915 Nov. 30 

Dec. 31 

1,066.93 

1,065.44 

1.064.45 

226,800 

219,200 

214,200 

-6,600 

-7,600 

-5,000 

Calendar year 1915 - -

1,500 

Jan. 31, 1916 

Feb. 29 

Mar. 31 

Apr. 30 

May 31 

June 30 

1,063.65 

1,062.57 

1,060.86 

1,067.00 

1,071.65 

1,070.10 

210.200 

205,100 

196,500 

227.300 

251,700 

243,000 

-4,000 

-5,100 

-8,600 

+30,800 

+24,400 

-8,700 July 31 

Aug. 31 

iept 70 

1,069.86 

1,068.98 

1,067.65 

241,900 

237,400 

230,300 

-1,100 

-4,500 

-7,100 

Water year 1915-16 - - -3,100 

)ct. 31. 1916 

4ov. 30 

Dec. 31 

1,066.75 

1,065.60 

1,064.22 

226,300 

220,200 

213,200 

-4.000 

-6,100 

-7,000 

Calendar year 1916 - -1,000 

Ian. 31, 1917 ,eb. 28 

1,063.22 

1,062.22 

208,100 

203,100 

-5,100 

-5,000 Tar. 31 1,060.11 192,500 -10,600 kpr. 30 

lay 31 

rune 30 

July 31 

1,058.33 

1,057.68 

1,055.48 

1,053.19 

184,900 

182,300 

173,100 

163,400 

-7,600 

-2,600 

-9,200 

-9,700 lug. 31 

iept.30 1,050.58 

1,048.77 152,500 145,700 -10,900

-0,000 

Water year 1916-17 - - -84,600 

)ct. 31, 1517 1,046.30 136,800 -8,900 lov. 30 1,045.16 132,900 -3,900 >ec. 31 1,042.97 125,100 -7,800 

Calendar year 1917 - - - -88,100 

an. 31, 1918 

Feb. 28 

1,041.38 

1,040.28 

119,500 

115,600 -5,600 -3,900 Sr. 31 1.037.25 106,500 -9,100 

Apr. 30 1,038.32 109,600 +3,100 May 31 1,036.43 104,200 -5,400 une 30 1,032.52 93,020 -11,180 my 31 

Aug. 31 1,027.84 

1,023.60 

80,740 

70,960 -12,280 -9,780 ,ept.30 1,020.56 63,980 , -6,980 

Water year 1917-18 - - -81,720 

ct. 31, 1918 1,020.80 64,440 +460 ov. 30 

Cc. 31 1,019.58 

1.023.87 

61,850 

71,660 

-2,590 

+9.810 

Calendar year 1918 - - -53,440 

an. 31. 1919 

eb. 28 1,025.39 

1,026.18 

75,150 

77,010 

+3,490 

+1,860 Sr. 31 1,026.62 77,940 +930 

Apr. 30 

May 31 

1,027.75 

1,029.74 

80,740 

85,160 

+2,800 

+4,420 

June 30 1,032.33 92,450 +7,290 my 31 

A ug. 31 

1,040.78 

1,065.10 

117,400 

217,700 

+24,950 

+100,300 

Sept.30 1,073.09 260,400 +42,700 

Water year 1918-19 - - +196,420 

ct. 31, 1919 

Nov. 30 

ec. 31 

I'Cs .-. rr .'''F r `-. r D '.0 .:,),3 ,.°8 

..... 

259,800 -600 

256,300 -3,500 

255,700 -600 

Calendar year 1919 - +184,040 

1920 256,900 +1,200 

255,700 -1,200 

255,200 -500 

253,400 -1,800 

an. 31, eb. 29 

ar. 31

pr. 30

ay 31 254,000 +600 

J une 30 250,000 -4,000 

J my 31 239,400 -10,600 

Mug. 31 234,400 -5,000 

ept.30 226,300 -8,100 

Water year 1919-20 - - -34,100 
			

		

		

		

		

		

		

		

		

		

		

		

		

		

		

		

		

		

		

		

		

		

		

		

		

		

		

		

		

		

- - 

GUADALUPE RIVER BASIN 191 

Monthly gage height and contents of Medina Lake near San Antonio. Tex., 

1913-48--Continued 

Oage Change in contents (Detk:rt Contents 

(acre-feet) Date during month 

(acre-feet) 

000

Oct. 31, 1920 

Nov. 30 

Dec. 31 

`4r.re;'Vr.r- , • :°2•.= 

1 1--•••••-4

218,200 -8,100 215,700 -2.500 211,200 -4„500 

- -44,500 

207,600 -3,600 202,600 -5,000 201,600 -1,000 200,100 -1,500 194,000 -6,100 218,200 +24,200 206,600 -11,600 194,500 -12,100 203,100 +8,600 

1 

Calendar year 1920 

m mmmmmmmm ' 000000000

Jan. 31, 1921 

Feb. 28 

Mar. 31 

Apr. 30 

May 31 

June 30 

July 31 

Aug 31 

Jept.30 

Water year 1920-21 -23,200

)ct. 31, •

1921 1,060.92 196,500 -6,600 boy. 30 1,059.66 190,700 -5,800 )ec. 31 1,058.62 186,100 -4,600 - _ 

Calendar year 1921 - -25,100 

ran. 31, 1922 ,eb. 28 

far. 31 

,pr. 30 

fay 31 

une 30 

uly 31 

,ug. 31 

ept.30 

1,057.61 

1,056.67 

1,055.53 

1,059.05 

1,061.78 

1,061.14 

1,058.86 

1,056.$8 

1,054.51 

181,900 

178,100 

173,100 

187,800 

201,100 

197,500 

187,400 

178,100 

168,900 

-4,200 

-3,800 

-5,000 

+14,700 

+13,300 

-3,600 

-10,100 

-9,300 

-9,200 

Water year 1921-22 - - -34,200 

(nu,' ,°'"

Oct. 31, 1922 Nov. 30 

Dec. 31 

161,300 -7,600 

156,700 -4,600 

I g 

I

I

150,400 -6,300 -

i i

' 

Calendar year 1922 - -35,700 ... f"'5)!AP'!°9? :°? I '

an. 31, 1923 Feb. 28 145,000 -5,400 

145,700 +700 

144,300 -1,400 

152,100 +7,800 

148,200 -3,900 

137,200 -11,000 

126,900 -10,300 

117,700 -9,200 

124.100 +6.400 

Mar. 31 

Apr. 30 

ay 31 

une 30 

my 31 

......

Voobb c 

A ug. 31

Sept.30 

Water year 1922-23 - - -44,800 

ct. 31, 1923 1,043.10 125,500 +1,400 

Npy. 30 1,046.93 139,000 +13,500 

. ec. 31 1,052.14 158,800 +19,800 

Calendar year 1923 - - +8,400 

en. 31, 1924 1,053.58 165,100 +6,300 Feb. 29 1,054.94 170,600 +5,500 ar. 31 1,058.01 183,600 +13,000 pr. 30 1,060.84 196,000 +12,400 ay 31 1,062.62 205,100 +9,100 me 30 1,063.88 211,700 +6,600 aly 31 1,062.17 203,100 -8,600 

J ag. 31 1,059.75 191,200 -11,900 

3ept.30 1,058.33 184,900 -6,300 

Water year 1923-24 - - +60,800 

:t. 31, 1924 1,056.46 177,300 -7,600 

N iv. 30 1,055.29 172,200 -5,100 

kc. 31 1,054.04 166,800 -5,400 _ -- - _ 

Calendar year 1924 - - +8,000 

in. 31, 1925 1,052.64 160,900 -5,900 

F.kb. 28 1,051.16 155,000 -5,900 

Ir. 31 1,048.81 145,700 -9,300 

A )r. 30 1,046.39 137,200 -8,500 

ky 31 1,045.82 135,100 -2,100 

inc 30 1,041.70 120,500 -14,600 

Jr tly 31 1,037.90 108,500 -12,000 

At lg. 31 1,036.80 105,300 -3,200 

kpt.30 1,035.45 101,300 -4,000 

Water year 1924-25 - -83,600 
		

			

		

		

		

		

		

 

		

		

		

		

		

		

		

		

		

		

		

		

		

			

		

		

		

		

		

		

			

		

		

		

		

(acre-feet) 

• • 1

192 GUADALUPE RIVER BASIN 

Monthly gage height and contents of Medina Lake near San Antonio, Tex., 

1913-48--Continued 

Date Oage:eC eitlht n (feet) 

onte ts 

(acre-feet) 

Change in contents 

month 

(acre-feet) 

Oct. 31, 1925 

Nov. 30 

Dec. 31 

1,037.08 

1,037.76 

1,036.28 

106,200 

108,200 

103,900 

+4,900 

+2,000 

-4,300 

Calendar year 1925 - - -62,900 

Jan. 31, 1926 Feb. 28 

Mar. 31 

Apr. 30 

May 31 

June 30 

July 31 

Aug. 31 

iept.30 

1,035.71 

1,034.37 

1,034.05 

1,042.65 

1,045.50 

1,045.12 

1,044.75 

1,042.73 

1,040.68 

102,200 

98,470 

97,320 

123,700 

134,000 

132,600 

131,500 

124,100 

117,000 

-1,700 

-3,730 

-1,150 

+26,380 

+10,300 

-1,400 

-1,100 

-7,400 

•

-7,100 

Water year 1925-26 - - +15,700 8888888881 1e565 I I , 1505)y 65VrsgT4goc5), 

)ct. 31, 1926 ,PDV. 30 

)ec. 31 

Calendar year 1926 

ran. 31, 1927 ,eb. 28 

tar. 31 

1pr. 30 

'lay 31 

rune 30 

ruly 31 

hug. 31 ept.30 

8F48,SS888 :'

•,;,,; ,.;• 

0001 gi ,;LoJ 

-4,800 

-2,000 

-1,400 

+4,900 

-2,900 

+4,300 

+8,600 

+9,900 

-1,800 

0 

-1,800 

-7,000 

-9,300 

Water year 1926-27 -8.200 . I I . , pc, "q?° 1 I NA .zics),‘,.F ‘ 8;T:888S88S1 1'888

103,100 -5,700 

97,320 -5,780 93,020 -4,300 

-15,780 

87,290 -5,730 

85,860 -1,430 84,700 -1,160 82,370 -2,330 77,710 -4,660 76,550 -1,160 69,560 -6,990 63,050 -6,510 57,100 -5,950 

ct. 31, 1927 

bv. 30 

ec. 31 

Calendar year 1927 

an. 31, 1928 *b. 29 

Mar. 31 

A pr. 30

Ay 31 

une 30 

J uly 31

Aug. 31 

ept.30 

Water year 1927-28 -51,700 

ct. 31, 1928 ov. 30 

ec. 31 

1,014.00 

1,011.50 

1,009.00 

-5,470 

-4,560 

-4,160 

I 

I I 

I 

StV.::,,N2 ',‘„,'L',(21f,,-

Calendar year 1928 -50,110 

J 31, 1929 1,007.00 -2,840 

-2,830 

-3,980 

-3,340 

-330 +16,570 

+5,100 

-3,640 

-6,840 

an. 

Peb. 28 1,005.00 ar. 31 1,002.25 

A pr. 30 999.75

ay 31 999.50 une 30 1,011.00 

uly 31 1,013.75 

A ug. 31 1,011.75

Sept.30 1,007.50 

Water year 1928-29 - -16,320 

ct. 31, 1929 1,003.25 34,680 -6,100 

N ov. 30 999.50 29,590 -5,090 

ec. 31 996.25 25,950 -3,640 

Calendar year 1929 - -16,960 

an. 31, 1930 993.92 23,420 -2,530 

Peb. 28 991.18 20,440 -2,980 

ar. 31 987.40 17,330 -3,110 

pr. 30 

ay 31 

une 30 

982.57 

992.50 

994.44 

14,010 

21,880 

23,970 

-3,320 

+7,870 

+2,090 

uly 31 

M ug. 31 

Sept.30 

988.23 

977.86 

963.27 

17,880 

10,860 

3,930 

-6,090 

-7,020 

-6,930 

Water year 1929-30 - -36,850 
		

		

		

		

		

		

		

		

		

		

		

		

		

		

		

		

		

		

		

		

		

		

			

		

		

Contents

GUADALUPE RIVER BASIN 193 

Monthly gage height and contents of Medina Lake near San Antonio, Tex., 1913-48--Continued 

Date Oagetel:r 

(feet) Contents (acre-feet) 

Change in contents during month 

(acre-feet) 

Oct. 31, 1930 Nov. 30 Dec. 31 

991.95 

993.35 

995.12 

21,320 

22,870 

24.740 

+17,390 

+1,550 

+1,870 

Calendar year 1930 -1,210 

Jan. 31, 1931 Feb. 28 Mar. 31 Apr. 30 May 31 June 30 

July 31 

Aug 31 Sept.30 

1,001.90 

1,012.10 

1,020.00 

1,026.50 

1,041.65 

1,041.78 

1,043.57 

1,041.89 

1,039.11 

32,840 

48,160 

62,580 

77,710 

120,200 

120,900 

127,300 

121,300 

111,900 

+8,100 

+15.320 

+14,420 

+15,130 

+42,490 +700 +6,400 

-6,000 

-9,400 

Water year 1930-31 +107,970 

Oct. 31, 1931 Nov. 30 Dec 31 

1,036.55 

1,034.56 

1,034.06 

104,800 

99,040 

97.610 

-7,100 

-5,760 

-1,430 

Calendar year 1931 +72,870 

Jar.. 31. 1932 Feb. 29 Mar. 31 Apr. 30 May 31 June 30 

July 31 

Aug. 31 Sept.30 

1.033.86 

1,034.02 

1,034.54 

1,035.30 

1,035.53 

1,033.03 

1,059.62 

1,058.75 

1,065.10 

97,040 

97,320 

99,900 

101,000 

101,600 

94,460 

190,300 

187,000 

217,700 

-570 

+280 +2.580 

+1,100 +600 -7,140 

+95,840 

-3,300 

+30.700 

Water year 1931-32 +105,800 

Oct. 31, 1932 Nov. 30 Dec. 31 

1,066.35 

1,065.94 

1,065.90 

224,300 

221,800 

221,800 

+6,600 

-2,500 0 

Calendar year 1932 +124,150 

Jan. 31. 1933 Feb. 28 Mar. 31 Apr. 30 May 31 June 30 

July 31 

Aug. 31 Sept.30 

1,067.54 

1,068.07 

1,068.16 

1,067.49 

1,066.24 

1,064.64 

1,062.13 

1,059.93 

1,057.90 

225,800 

232,800 

233,400 

229,800 

223,300 

215.200 

202,600 

191,600 

183,200 

+8,000 

+3,000 +600 -3.600 

-6,500 

-8,100 

-12,600 

-11,000 

-8,400 

Water year 1932-33 -34,500 

Oct. 31, 1933 Nov. 30 Dec. 31 

1.055.60 

1,053.55 

1,051.66 

173,500 

165,100 

157,100 

-9,700 

-8.400 

-8,000 

Calendar year 1933 -64,700 

Jan. 31, 1934 Feb. 28 Mar. 31 

1,051.12 

1,050.31 

1.049.22 

154,600 

151,200 

147,100 

-2,500 

-3,400 

-4,100 Apr. 30 May 31 June 30 

July 31 

1,049.65 

1,047.42 

1,043.72 

1,041.48 

148.500 

140,700 

127,600 

119,800 

+1,400 

-7,800 

-13,100 

-7,800 Aug. 31 Sept.30 1,037.82 

1,034.63 108,200 99,040 -11,600 

-9,160 

Water year 1933-34 -84,160 

Oct. 31, 1934 1,031.90 99,310 +270 Nov. 30 1,029.51 84,700 -14,610 Dec. 31 1,028.18 81,670 -3,030 

Calendar year 1934 -75,430 

Jan. 31, 1935 1,027.38 79,810 -1,860 Feb. 28 1,027.42 79,810 0 Mar. 31 1,024.10 72,120 -7,690 Apr. 30 May 31 June 30 

1,023.70 

1,036.30 

1,065.52 

71,190 

103,900 

219,700 

-930 +32,710 

+115,800 July 31 

Aug. 31 Sept.30 

1,071.00 

1,070.30 

1,072.48 

248,200 

244,200 

256,900 

+28,500 

-4,000 

+12,700 

Water year 1934-35 +157,860 
		

		

		

		

		

		

		

		

		

		

		

		

		

		

		

		

		

			

		

		

		

		

		

			

		

		

- - --

199 GUADALUPE RIVER BASIN 

Monthly gage height and contents of Medina Lake near San Antonio, Tex., 1913-48--Continued 

Gageifht Changehange in contents Date Contents during month (Beet (acre-feet) 

Oct. 31, 1935 1,072.07 254,600 -2,300 Nov. 30 1,071.72 252,300 -2,300 Dec. 31 1,072.09 254,600 +2,300 

Calendar year 1935 - - +172,930 _ 

Jan. 31, 1536 1,071.98 254,000 -600 Feb. 29 1,071.78 252,900 -1,100 Mar. 31 1,071.65 251,700 -1,200 Apr. 30 1,070.84 247,100 -4,600 May 31 1,072.36 256,300 +9,200 June 30 1,076.25 278,300 +22,000 July 31 1,071.92 253,400 -24,900 Aug. 31 1,070.65 245,900 -7,500 iept.30 1,073.20 261,000 +15,100 

Water year 1935-36 - - +4,100 

)ct. 31, 1936 1,072.30 

22 :.. 2:... 

, 

,

888' :8HUME 

-5,300 

-1,100 

-600 

-600 

0 

-600 

+600 -1,100 

-11,000 

+10,400 

-7,600 

-13,400 

-12,100 

lov. 30 1,072.09 Wc. 31 1,072.05 

Calendar year 1936 -

'an. 31, 1937 1,072.02 Wb. 28 1,071.88 far. 31 1,072.04 Lpr. 30 1,071.80 fay 31 1,069.88 une 30 1,071.70 uly 31 1,070.42 ug. 31 1,067.81 ept.30 1,065.40 

Water year 1936-37 - - -41,800 

Oct. 31, 1937 1,063.58 Nov. 30 1,061.70 Dec. 31 1,061.10 

Calendar year 1937 -

, 

;°17;n'AFaUL I NN

-9,000 

-9,600 

-3,100 

-56.500 

1 ,) 1+01 60)§§§§88

31, 1938 1,062.30 28 1,062.60 +6,100 

+1,500 

-1,000 

+2,500 

+1,000 

-11,600 

-12,000 

-13,900 

-8,400 

an. 

F eb.

ar. 31 1,062.40 A pr. 30 1,062.92 ay 31 1,063.14 une 30 1,060.79 my 31 1,058.10 J ug. 31 1,054.79 ept.30 1,052.77 

Water year 1937-38 - - -57,500 888

ct. 31. 1938 1,048.40 DV. 30 1,045.80 ,c. 31 1,044.00 

-17,400 

-9,200 

-6,400 _, 

Calendar year 1938 

, 87,8588888, 1 

-68,800 

-1,800 

-4,200 

-8,500 

-11,700 

-13,770 

-11,020 

+1,630 

-8,380 

-10,940 

-

an. 31, 1939 1,043.50 F ab. 28 1,042.34 Nar. 31 1,039.91 A pr. 30 1,035.80

N ay 31 1,031.03 une 30 1,026.53 

Ily 31 1,027.18 

A 'lg. 31 1,023.60 

3',pt.30 1,018.60 

Water year 1938-39 - - -101,680 

0 :t. 31, 1939 1,018.25 8(.2. 0 

-720 

-4,930 

-4,930 

-79,260 

N ,v. 30 1,015.50 ,c. 31 1,012.85

Calendar year 1939 - -

in. 31, 1940 

F ,b. 29 

N kr. 31 

A ,r. 30 

M ky 31 

J me 30 

Ily 31 

lg. 31 

!pt.30 

Water year 1939-40 

1,010.10 -4,930 

1,010.70 +1,100 

1,004.60 -8,940 

1,005.10 +710 

1,003.18 -2,700 

999.65 -4,980 

995.90 -4,080 

985.50 -9,600 

972.10 -8,940 

- - -52,940 
		

			

	 	

		

	 	

	 	

		

	 			

	 	

	 	

		

		

		

		

	 	

				

		

		

		

		

	 		

	 	

			

		

		

	 	

	 		

					

		

		

	 	

	 	

		

		

N

A 

J 

J 

S 

GUADALUPE RIVER BASIN 195 

Monthly gage height and contents of Medina Lake near San Antonio, Tex., 1913-48--Continued 

Date Gage het ( Contents 

(acre-feet) 

Change in contents during month 

(acre-feet) 

ly 31 

Oct. 31, 1940 953.10 1.770 -5,310 Nov. 30 970.32 5,920 +4.150 Dec. 31 995.65 25,290 +19,37C 

Calendar year 1940 - - -24,150 _ 

tan. 31, 1941 595.35 25,070 -220 ?eb. 28 1,019.60 61,850 +36,780 Mar. 31 1,029.30 84,230 +22,380 1pr. 30 1,039.38 112,800 +28,570 4ay 31 1,050.90 153,700 +40,900 Tune 30 1,051.55 166,700 +3,000 July 31 1,049.75 149,200 -7,500 lug. 31 1,048.65 145,000 -4,200 Tept 30 1,047.75 142,200 -2,800 

Water year 1940-41 - - +135,120 *t. 31, 1941 142,200 0 Mv. 30 137,900 -4,300 *c. 31 135,100 -2,800 Calendar year 1941 - +109,810 an. 31, 1942 129,800 r -5,300 tb. 28 126,200 -3,600 Mar. 31 118,100 -8,100 pr. 30 116,300 -1,800 May 31 130,500 +14,200 une 30 118,100 -12,400 uly 31 113,900 -4,200 ug. 31 103,900 -10,000 ept.30 105,600 +1,700 I 

Water year 1941-42 - - -36,600 

ct. 31, 1942 1,046.05 135.800 +30,200 ov. 30 1,046.58 137,900 +2,100 ec. 31 1,046.10 136,100 -1,800 

Calendar year 1942 - - +1,000 

en. 31. 1943 1,045.30 133,300 -2,800 cb. 28 1,043.52 126,900 -6,400 ,r. 31 1,041.55 120,200 -6,700 pr. 30 1,040.45 115,900 -4,300 

inc 30 1,040.95 118,100 +2,200 Ily 31 1,038.50 110,200 -7,900 Jig. 31 1,033.50 95,890 -14,310 ,pt 30 1,031.50 90,160 -5,730 

- 

Water year 1942-43 - - -15,440 

't. 31. 1943 1,028.65 -7,560 iv. 30 1,026.05 -6,050 ,c 31 o 1,024.70 -3,030 

Calendar year 1943 - -62,580 

in. 31, 1944 1,024.15 -1,160 0o. 29 1,025.50 +3,020 Ir. 31 1,029.60 +9,550 m. 30 1,028.80 -1,860 1 31 1,036.95 +22,830 me 30 1,038.00 +2,900 ly 31 1,034.20 -10,900 g. 31 1,031.50 -7,740 pt 30 1,030.40 2

-3,150 

'8:42nTg 1 1,,zA 

'6S'88,9;,%'n c8g8 

Water year 1943-44 - - -3,150 

t. 31, 1944 1,027.70 80,510 -6,500 v. 30 1,025.60 75,620 -4,890 c. 31 1,026.80 78,410 +2,790 _ 

Calendar year 1944 +4,890 

n. 31, 1945 1,032.90 94,170 +15.760 b. 28 1,037.00 105,900 +11.730 r. 31 1,039.80 113,900 +8,000 r. 30 1,042.50 123.400 +9,500 y 31 1,045.00 132,200 +8,800 ne 30 1,037.60 107,600 -24,600 

ly 31 1,033.00 94,460 -13,140 

g. 31 1,027.00 78,880 -15,580 pt.30 1,027.90 80,970 +2,090 

- 

Water year 1944-45 - - -6,040 

F 

J 

S 

N 

J 

F 

A 

S 

No 

Ja 

Fe 

Ma 

Ap 

Ma 

Ju 

Au 

Se 
		

		

			

		

		

		

			

		

		

			

		

		

		

			

		

		

		

			

		

		

		

		

- -- - 

196 GUADALUPE RIVER BASIN 

Monthly gage height and contents of Medina Lake near San Antonio, Tex., 1913-48--Continued 

Change in contents 

Date during month Gaget (feVfht Contents (acre-feet) (acre-feet) 

Oct. 31, 1945 1,031.40 Nov. 30 1,029.40 Dec. 31 1,028.60 

, 

,

0001 1 000000000 

T d NI 

,corcoco mtpoto 

i 

+8,900 

-5,410 

-1,860 

+4,190 

-2.790 +460 -5,120 

-5,590 

+12,580 

-2,100 

-12,800 

-9,040 

+6,710 

Calendar year 1945 -

Jan. 31, 1946 1,027.45 Feb. 28 1,027.65 Mar. 31 1,025.40 Apr. 30 1,023.00 May 31 1,028.40 June 30 1,027.50 July 31 1,022.00 Aug. 31 1,017.60 Sept.30 1,021.00 

Water year 1945-46 - - -16,060 

3,1t. 31, 1946 bov. 30 Dec 31 1,028.10 

1,028.90 

1,029.60 

81,440 

83,300 

84,930 

+16,530 

+1,860 

+1,630 

Calendar year 1946 - - +2,330 

Tan. 31, 1947 ,eb. 28 1,034.20 

1,036.50 97,900 

104,500 +12,970 

+6,600 4al. 31 1,036.90 105,600 +1,100 1pr. 30 lay 31 Tune 30 

1,035.50 

1,033.70 

1,030.10 

101,600 

96,460 

86,150 

-4,000 

-5,140 

-10,310 Tuly 31 1,024.40 72,820 -13,330 lug. 31 iept.30 1,018.90 

1,011.40 60,570 

46,880 -12,250 

-13,690 

Water year 1946-47 - - -18,030 

)ct. 31, 1947 Nov. 30 999.6 

992.0 29,700 21,320 -17,180 

-8,380 Dec. 31 984.9 15,600 -5,720 _ 

Calendar year 1947 - - -- -69,330 

'an. 31, 1948 975.4 9,230 -6,370 ,eb. 29 ar. 31 969.3 

956.0 5,530 

2,310 -3,700 

-3,220 ,pr. 30 lay 31 une 30 

955.5 

958.6 

981.5 

2,220 

2,790 

13,260 

-90 

+570 +10,470 'uly 31 

Aug. 31 Sept.30 

975.5 

951.0 

955.1 

9,300 

1,380 

2,140 

-3,960 

-7,920 +760 

Water year 1947-48 -- -44,740 
GUADALUPE RIVER BASIN 197 

Medina River near San Antonio, Tex. 

Location.- Water-stage recorder, lat. 29°15', long. 98°28', at bridge on U. S. Highway 281, 

5.2 miles upstream from mouth and 9 miles south of San Antonio, Bexar County. 

Drainage area.- 1,225 square miles (587 square miles in above dam forming Medina Lake). 

Records available.- July 1939 to September 1948. October 1929 to December 1930, records 

below about 5U second-feet, at Losoya, 1.5 miles downstream, in connection with seepage 

investigation. 

Extremes.- Maximum discharge during year, 2,050 second-feet Aug. 27 (gage height, 14.58 

feet); minimum, 5.9 second-feet Sept. 6, 7. 

1939-48: Maximum discharge, 31,800 second-feet Aug. 29, 1946; maximum gage height, 

41.57 feet Sept. 27, 1946 (backwater from San Antonio River); minimum discharge, that 

of Sept. 6, 7, 1948. 

Maximum stage known, about 55 feet in 1912 (prior to construction of Medina Dam, 60 

miles upstream), from information by State Highway Department. 

Remarks.- Records good except those for periods of no gage-height record, which are fair. 

Flow partly regulated by Medina Lake (capacity, 254,000 acre-feet) and diversion dam 

reservoir (capacity, 4,500 acre-feet). Storage began in Medina Lake in 1913. About 

5,000 acres are irrigated by water released from Medina Lake above station. A considerable part of low flow is sewage from San Antonio which is released from Mitchell Lake 

a few miles above station. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 75 89 95 87 89 64 99 90 39 f67 15 13 2 

3 76 

75 83 80 98 106 89 86 152 

162 62 

64 96 

87 f65 64 39 

38 f56 438 13 

13 11 

11 4 79 80 106 84 152 57 66 66 38 221 13 10 5 83 77 102 85 144 57 97 61 38 132 13 8.9 

6 80 96 106 85 134 59 97 71 26 125 13 8.0 7 86 130 111 82 130 69 90 45 18 114 13 7.4 a 87 148 112 83 123 96 86 30 15 88 13 10 9 86 144 109 84 121 102 82 30 15 68 12 42 10 79 112 102 85 123 105 74 44 15 a32 13 163 

11 80 82 100 86 123 102 55 77 15 a32 14 117 12 76 79 90 86 126 94 68 117 13 228 13 64 13 76 82 94 83 124 68 78 81 11 80 15 62 14 80 89 96 92 113 68 75 59 11 a34 17 46 15 84 89 209 92 70 70 60 41 13 a32 15 20 

16 86 89 193 88 68 63 46 26 14 a30 14 19 17 88 88 122 82 68 f58 43 30 14 a28 21 28 18 86 106 115 88 68 f67 42 24 13 a26 16 26 19 86 117 112 93 67 90 50 23 15 a24 15 20 20 85 110 106 101 66 91 57 23 13 a22 15 19 

21 81 104 98 98 111 94 52 22 13 a20 15 20 22 78 105 96 94 157 136 57 21 13 518 13 20 23 77 106 95 106 113 72 100 21 11 18 13 21 24 78 98 95 134 107 65 126 20 24 18 14 20 25 78 101 95 111 '108 82 169 19 28 17 15 19 

26 78 102 101 117 108 104 175 44 28 16 365 17 27 

28 80 

82 100 96 98 94 113 

87 89 

71 90 

68 139 

98 29 23 20 

14 16 18 1,060 159 15 

17 29 

30 88 

99 97 

97 93 

91 95 81 66 98 100 71 86 26 

20 912 302 15 

16 29 

20 16 17 31 96 - 91 81 - 101 - 28 16 17 -

Month Secondfoot-days Maximum Minimum Mean Runoff in 

acre-feet 

October 

November 

December 

2,548 

2,976 

3,331 

99 

148 

209 

75 

77 

90 

82.2 

99.2 

107 

5,050 

5,900 

6,610 

Calendar year 1947 35,712 209 75 97.8 70,840 

January 

February 

March 

April 

May 

June 

July 

August 

September 

2,858 

3,153 

2,516 

2,521 

1,340 

1,778 

2,065 

2,006 887.3 

134 

162 

136 

175 

117 

912 

438 1,060 163 

81 

66 

57 

42 

19 

11 

15 

12 

7.4 

92.2 

109 

81.2 

84.0 

43.2 

59.3 

66.6 

64.7 

29.6 

5,670 

6,250 

4,990 

5,000 

2,660 

3,530 

4,100 

3,980 

1,760 

Water year 1947-48 27,979.3 1,060 7.4 76.4 55,500 

Peak discharge (base, 1,500 sec.-ft.).- June 27 (5 a.m.) 2,050 sec.-ft. 

a No gage-height record; discharge computed on basis of discharge measurement made Aug. 22 and weather records. f Computed on basis of partly estimated gage-height record. 
198 GUADALUPE RIVER BASIN 

Cibolo Creek near Bulverde, Tex. 

Location.- Water-stage recorder, lat. 29°43, 35", long. 98°25,40", at William Classen ranch 

house, 1.8 miles downstream from bridge on U. S. Highway 281, 2 miles southeast of 

Bulverde, Comal County, and 4.7 miles upstream from Dripping Springs Creek. 

Drainage area.- 198 square miles. 

Hecorde available.- April 1946 to September 1948. 

Extremes.- No flow during year. 

1946-48: Maximum gage height, 12.50 feet, from floodmark, Sept. 27, 1946 (discharge 

not determined); no flow most of time. 

Remarks.- No flow since Feb. 2, 1947. The purpose of the station is to determine the 

---37FEamflow losses during periods of medium and low flow. There are no surface diversions, but much of surface flow enters sink holes and caverns in Glen Rose limestone 

above station. Figures for calendar year 1947 are as follows: total second-foot days, 

513.5; maximum daily discharge, 91 second-feet; minimum daily, no flow; mean, 1.41 

second-feet; runoff, 1,020 acre-feet. 

Cibolo Creek above Bracken, Tex. 

Location.- Water-stage recorder, lat. 29°40,30", long. 98°23,00", 0.1 mile downstream from 

West Fork Creek and 5.8 miles northwest of Bracken, Comal 

Drainage area.- 251 square miles. 

Hecords available.- March 1946 to September 1948. 

Extremes.- Maximum discharge during year, 468 second-feet May 11 (gage height, 4.35 feet); 

no flow most of time. 

1946-48: Maximum gage height, 11.04 feet, from floodmark, Sept. 27, 1946 (discharge 

not determined); no flow most of time. 

Remarks.- Records good. Discharge not computed above 500 second-feet. The purpose of the 

station is to determine the stream-flow losses during periods of medium and low flow. 

There are no surface diversions, but much of the surface flow enters sink holes and 

caverns in Glen Rose limestone above station. 

Discharge, In second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 0 

2 

3 0 

4 0 

5 0 

6 0 

7 0 

8 0 

9 0 

10 0 

11 75 

12 84 13 0 14 0 15 0 

16 0 

17 0 

18 0 

19 0 

20 0 

21 0 

22 0 

23 0 

24 0 

25 0 

26 0 

27 0 

28 0 

29 0 30 

31 0 

Month Secondfoot-days Maximum Minimum Mean Runoff in 

acre-feet 

October 0 0 0 November 0 0 0 December 0 0 0 

Calendar year 194- 474.5 63 1.30 941 

January 

February 

March 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 April 0 0 0 0 0 May 

June 

83.4 

0 75 

0 0 

0 

2.69 

0 165 

0 July 

August 

September 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

Water year 1947-48 83.4 75 .23 165 
GUADALUPE RIVER BASIN 199 

Cibolo Creek at Selma. Tex. 

Location.- Water-stage recorder, lat. 29°351 35", long. 98°18'40", 1.6 mile downstream 

from Missouri-Kansas-Texas Railroad bridge and 0.8 mile upstream from bridge on U. S. 

Highway 81 at Selma, Bexar County. Datum of gage is 728.34 feet above mean sea level, 

datum of 1929. 

Drainage area.- 280 square miles. 

Records available.- March 1946 to September 1948. 

Extremes.- Maximum discharge during year, 37 second-feet July 5 (gage height, 3.37 feet); 

no flow most of time. 1946-48: Maximum discharge, 7,240 second-feet Sept. 27, 1946 (gage height, 10.48 

feet); no flow most of time. 

Maximum stage known, about 26 feet in 1889, from information by local resident. 

Flood of 1913 was probably about 2 feet lower than that of 1889. 

Remarks.- Records good. There are no surface diversions, but part of flow of Cibolo Creek enters the Edwards limestone in the Balcones fault zone which crosses basin 

between this station and station above Bracken. 

Discharge, in second-feet, water year October1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 000000 0000

00000000000 00000 c. 000 

N 

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 

n, 

Runoff in 

acre-feet 

0 

0 

0 

Second- Month Maximum Minimum foot-days 

I 000 00.000

'0001 

: :: 2: 

Mean 

1

111 

00.0000001 NI000 

N 1

. 

111 0000 0000 0 1 O I 0001______— 1

October 0 

November 0

December 0

Calendar year 1947 4.5 - 1

1 

January 0 February 0 March 0 April 0 May 0 June 0 July 3.4 August 0 September 0 

Water year 1947-48 3.4 3.2 0 .01 6.7 

Peak discharge (base, 1,000 sec.-ft.).- No peak above base. 

905771 0 - 50 - 14 

8.9 

0 

0 

0 

0 

0 

0 

6.7 

0 

0 
200 GUADALUPE RIVER BASIN 

Cibolo Creek near Falls City, Tex. 

Location.- Water-stage recorder, lat. 29°01,, long. 97°56,, at bridge on State Highway 123, 

5.5 miles northeast of Falls City, Karnes County, and 9 miles upstream from mouth. 

Datum of gage is 264.3 feet above mean sea level, datum of 1929, Houston supplementary 

adjustment of 1943. 

Drainage area.- 831 square miles. 

Records available.- November 1930 to September 1948. 

Average discharge.- 17 years (1931-48), 130 second-feet. 

Extremes.- Maximum discharge during year, 11,500 second-feet Aug. 26 (gage heignt, 23.43 

feet); minimum, 4.0 second-feet Aug. 22 (gage height, 0.86 foot). 

1930-48: Maximum discharge, 33,600 second-feet July 6, 1942 (gage height, 34.45 

feet); minimum, that of Aug. 22, 1948. 

Flood in October 1913 reached a stage about half a foot higher than that of July 6, 

1942. 

Remarks.- Records good. There are no surface diversions, but much of the surface flow of 

Clt2olo Creek enters sink holes and caverns in Glen Rose limestone and in Edwards limestone in the Balcones fault zone which crosses the basin between station above Bracken 

and station at Selma. 

Revisions (water years).- W 733: 1931. W 1058: 1935. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

16 16 17 20 24 24 19 16 18 193 9.3 14 16 16 17 22 29 24 18 16 16 310 17 12 15 16 19 22 29 22 19 16 16 177 7.8 12 15 16 20 21 29 22 19 15 16 52 7.3 11 16 15 19 21 32 27 20 14 14 113 7.3 11 

16 17 19 21 30 24 20 14 14 109 6.8 11 16 16 19 21 29 23 19 16 14 55 • 6.8 11 16 16 20 21 29 22 19 15 14 32 6.8 276 15 17 24 22 27 22 18 18 13 27 6.3 196 15 17 21 22 25 22 17 19 13 22 6.3 51 

16 17 20 22 23 22 17 83 13 47 6.3 21 14 17 22 22 22 22 17 40 14 35 6.3 12 15 17 24 21 22 22 18 43 13 15 6.3 8.8 16 19 27 20 22 22 17 35 13 13 6.3 8.8 16 18 34 20 22 22 17 24 12 11 6.3 8.8 

16 19 29 21 22 22 17 20 11 9.8 6.8 8.3 14 62 25 20 22 22 16 18 11 9.8 6.8 8.3 14 38 27 20 22 21 16 16 9.8 11 6.8 8.8 17 20 24 22 23 20 16 16 9.3 10 6.3 9.8 16 19 24 22 23 20 14 14 10 9.8 5.8 10

14 19 22 22 40 20 13 13 10 9.8 5.3 9.3 14 17 20 22 52 20 15 12 10 9.8 4.4 8.3 15 17 22 23 28 19 16 12 11 8.8 4.8 8.3 16 19 22 22 24 19 16 32 11 8.8 20 8.3 15 19 22 22 24 19 26 1,120 11 7.8 17 41 

15 18 22 24 24 20 27 193 10 7.8 4,410 16 16 19 22 25 22 20 22 60 9.8 8.3 206 9.8 17 19 22 24 22 20 24 35 24 7.3 106 8.8 17 19 22 23 24 19 20 24 40 7.3 47 9.3 17 19 22 23 - 19 17 21 197 7.3 26 9.3 17 - 22 22 19 - 19 7.3 16 -

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 483 17 14 15.6 958 November 593 62 15 19.8 1,180 December 691 34 17 22.3 1,370 

Calendar year 1947 23,410 3,620 14 64.1 46,450 

January 675 25 20 21.8 1,340 February 766 52 22 26.4 1,520 March 661 27 19 21.3 1,310 April 549 27 13 18.3 1,090 May 2,009 1,120 12 64.8 3,980 June 597.9 197 9.3 19.9 1,190 July 1,351.7 310 7.3 43.6 2,680 August 5,008.2 4,410 4.4 162 9,930 September 838.0 276 8.3 27.9 1,660 

Water year 1947-48 14,222.8 4,410 4.4 38.9 28,210 

Peak discharge (base, 4,400 sec.-ft*- Aug. 26 (9 a.m.) 11,500 sec.-ft. I .T O -' " ' ' ' 'N ' ' . -°, , Vi.' 1 2::.-'', ','-' 2..'-' 7.1s' 2 Z:', g' - 422 Note.- No gage-height record Mar. 5- 0; discharge computed on basis of recorded range in stage, weiTEW records, and discharge measurement made Mar. 20. 
MISSION RIVER BASIN 201 

Mission River at Refugio, Tex. 

Location.- Wire-weight gage, lat. 28°17,, long. 97°17', at bridge on U. S. Highway 77, 500 

feet upstream from Missouri Pacific Railroad bridge and a quarter of a mile southwest 

of Refugio County. Datum of gage is 1.7 feet above mean sea level, datum of 1929. 

Drainage area.- 643 square miles. 

Records available.- July 1939 to September 1948. 

Extremes.- Maximum discharge during year, 342 second-feet July 1 (gage height, 6.40 feet, 

--TFUM-graph based on gage readings); minimum observed, 1.2 second-feet Sept. 7, 8. 

1939-48: Maximum discharge, 41,700 second-feet July 7, 1942 (gage height, 33.3 

feet); minimum observed, 0.7 second-foot Oct. 7, 9, 1940, Aug. 18-20, Sept. 5, 1945. 

Maximum stage known prior to 1942, 32.3 feet in August 1914 and on May 17, 1938, 

from information by local residents. 

Remarks.- Records fair except those for periods of no gage-height record, which are poor. 

---nTe-read twice daily, oftener during floods. No large diversions above station. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 6.3 5.4 6.1 3.8 8.3 13 6.5 3.8 3.5 700 2.1 1.8 

2 6.3 5.4 6.3 3.7 8.7 13 6.3 4.', 2.9 138 2.° 1.3 

3 6.3 5.0 6.3 3.8 9.0 12 S.') 3.9 2.7 58 1.3 

4 6.7 5.0 6.7 3.7 9.2 11 5.4 3.8 2.6 105 2.1 1.3 

5 6.3 5.4 7.1 3.3 9.2 20 5.4 4.0 2.4 81 2.4 1.3 

6.3 6.1 7.1 3.5 9.7 29 4.8 4.0 2.4 34 2.4 1.3 

7 

6 6.7 6.7 7.6 5.6 10 20 5.0 3.8 2.4 14 2.3 1.2 

8 6.3 7.1 7.6 6.9 13 70 4.2 4.4 2.4 9.0 2.3 1.6 

9 6.1 7.1 8.0 6.9 14 94 5.0 5.0 2.9 10 2.3 4.7 

10 6.3 7.1 9.0 6.9 12 68 5.0 5.0 2.7 6.1 2.3 8.6 

11 6.3 6.9 9.7 7.1 11 35 4.8 7.6 2.9 4.4 2.4 4.4 

12 6.3 6.9 11 7.4 11 16 4.4 10 3.7 4.0 2.1 20 

13 5.8 7.8 15 7.6 10 11 4.8 6.9 2.4 3.8 1.8 9.4 

14 5.6 7.8 44 8.3 10 10 4.6 6.1 3.1 3.5 1.8 4.4 

15 5.6 7.4 46 8.3 10 9.0 4.6 4.4 3.1 3.1 1.8 2.7 

16 6.1 7.8 44 9.0 9.7 9.0 4.6 4.2 2.4 2.7 2.1 3.1 17 5.8 8.3 38 10 9.4 9.0 4.6 4.2 1.9 3.1 1.8 2.6 18 5.6 8.0 31 18 9.2 9.0 4.2 4.0 1.6 4.8 1.8 2.4 19 5.2 7.8 25 25 9.0 8.3 4.4 4.6 1.8 6.7 1.8 2.4 

20 5.4 8.3 19 27 8.7 8.3 4.6 5.2 1.5 3.3 1.8 2.3 

21 5.2 8.7 16 22 8.5 8.0 5.0 4.6 1.8 2.9 1.8 2.1 22 5.2 8.0 11 13 39 7.6 7.1 4.4 1.9 2.1 1.9 2.4 

23 4.8 7.G 8.3 8.3 34 7.6 12 4.6 1.8 2.6 1.9 2.3 24 5.2 7.1 7.1 5.8 21 7.6 7.1 5.6 1.8 2.3 I.% 2.6 25 5.4 7.1 6.3 6.1 17 7.4 22 18 2.7 2.3 2.3 2.6 

26 5.4 6.7 5.8 6.5 16 7.1 12 18 3.1 2.3 2.1 2.4 27 5.4 6.7 5.6 6.5 16 7.1 11 12 2.1 2.4 2.3 2.1 

28 5.8 6.3 5.0 6.5 15 6.9 6.3 11 2.4 1.9 1.8 2.1 29 5.8 6.3 4.8 6.7 .14 6.9 5.4 9.2 2.6 2.3 2.3 1.6 30 5.8 6.3 4.4 7.6 - 6.7 4.4 6.1 4.0 2.3 1.9 1.6 31 5.4 - 4.0 7.6 - 6.7 - 4.2 2.3 1.8 -

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

6.7 5.83 

November 208.1 5.0 October 180.7 4.8 358 8.7 6.94 413 

December 432.8 46 4.0 14.0 858 

-

Calendar year 1947 23,855.9 8,170 4.0 65.4 ' 47,310 

_ 

January 

- 272.4 27 3.3 8.79 540 

February 381.6 39 8.3 13.2 757 

March 554.2 94 6.7 17.9 1,100 

April 190.5 22 4.2 6.35 378 

May 196.5 18 3.8 6.34 390 

June 75.5 4.0 1.5 2.52 150 

July 720.2 200 1.9 23.2 1,430 

August 64.3 2.6 1.8 2.07 128 

September 99.9 20 1.2 3.33 198 

Water year 1947-48 3,376.7 200 1.2 9.23 6,700 

Peak discharge base, 2,500 sec.-ft. .- No peak above base. 

Note.- No gage- eight record Jan. 6, -Feb. 8-10, Feb. 13 to Mar. 6, July 22: discharge interpolated, 

or computed on basis of discharge measurements made Feb. 11, 12 and weather records. 
	 	- - - - - - - - - - - 

202 NUECES RIVER BASIN 

Nueces River at Laguna, Tex. 

Location.- Water-stage recorder, lat. 29°25'45", long. 99°59'50", half a mile downstream 

from Sycamore Creek and 1 mile northeast of Laguna, Uvalde County. Datum of gage is 

1,119.72 feet above mean sea level, datum of 1929. 

Drainage area.- 764 square miles. 

Records available.- October 1923 to September 1948. 

Average discharge.- 25 years, 140 second-feet. 

Extremes.- Maximum discharge during year, 10,300 second-feet July 5 (gage height, 9.52 

feet); minimum, 19 second-feet Sept. 17-21. 

1923-48: Maximum discharge, 222,000 second-feet July 13, 1939 (gage height, 26.40 

feet), from rating curve extended above 40,000 second-feet on basis of float measurement (110,000 second-feet) and slope-area determination (213,000 second-feet); minimum, 

7.8 second-feet Nov. 3-15, 18, 1934. 

Flood of Sept. 21, 1923, reached a stage of 26.5 feet (discharge, 226,000 secondfeet, based on rating curve mentioned above). Flood of June 1913 reached a stage 2 or 

3 feet -higher than that of Sept. 21, 1923, from information by local resident. 

Remarks.- Records good except those for July 8-26, which are poor. No diversions above 

station. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. MaY June July Aug. Sept. ( '%%"6"8 1,(:)".4 ", ,, ' t'2:',-.='%

'kl k04"4,4 `,4. (41 g2,

1:61 VO `6"6"6

"`,- . `, '

1 33 33 41 44 46 42 51 29 145 44 28

2 33 33 41 48 48 4? 48 28 141 44 27

3 32 33 41 46 48 42 48 27 134 44 26

4 32 33 41 46 48 42 44 28 124 42 26 5 32 34 41 46 48 41 44 30 2,420 42 26

6 32 34 41 46 48 41 41 30 1,690 41 25

7 30 34 41 46 48 41 39 30 598 39 24

8 30 34 41 46 48 41 39 28 368 39 24

9 3C 34 41 46 48 41 37 27 253 37 24

10 30 36 41 46 48 41 36 28 226 36 24

30 36 41 48 46 41 53 30 208 34 20 36 41 48 48 39 46 28 145 33 20 36 41 48 48 39 44 28 124 32 20 37 41 48 48 39 42 27 107 32 20 39 41 48 48 39 39 26 101 32 20 

39 41 48 48 39 39 26 95 33 20 39 41 48 46 37 39 25 86 33 19 39 41 48 46 36 37 24 83 32 19 39 41 48 46 34 34 22 80 30 19 39 41 48 44 34 34 22 72 30 19 

39 42 48 44 34 33 22 70 29 20 39 42 48 44 36 33 20 67 29 30 39 42 48 44 41 33 22 62 29 26 39 42 48 44 36 42 25 58 29 24 39 42 48 44 44 36 22 58 30 22 

11 

12 30

13 30

14 30 15 30

16 30

17 30

18 30

19 32

20 32

21 32

22 32

23 30

24 29

25 28

26 29 39 42 48 44 39 36 194 55 29 22 27 29 39 41 53 42 48 34 168 53 29 22 28 30 39 42 48 42 55 33 171 51 29 22 29 34 39 42 46 42 55 32 141 48 28 22 30 33 39 41 42 53 30 134 44 28 22 31 32 41 41 - 42 - 29 42 28 -

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 956 34 28 30.8 1,900 November 944 34 30 31.5 1,870 December 1,148 41 33 37.0 2,280 

Calendar year 1947 33,257 586 28 91.1 65,970 

January 1,280 42 41 41.3 2,540 February 1,375 53 44 47.4 2,730 March 1,420 48 42 45.8 2,820 April 1,232 55 34 41.1 2,440 May 1,205 53 29 38.9 2,390 June 1,462 194 20 48.7 2,900 July 7,808 2,420 42 252 15,490 August 1,046 44 28 33.7 2,070 September 682 30 19 22.7 1,350 

Water year 1947-48 20,558 2,420 19 56.2 40,780 

Peak discharge (base, 1,200 sec.-ft.).- July 5 (4:30 p.m.) 10,300 sec.-ft. 
NUECES RIVER BASIN 203 

Nueces River below Uvalde, Tex. 

Location.- Water-stage recorder, lat. 29°08,, long. 99°54, , on Smyth Ranch, 4 miles up-

---FEFENth from bridge on U. S. Highway 83, 9 miles southwest of Uvalde, Uvalde County, 

and 15 miles downstream from West Nueces River. Datum of gage is 796.1 feet above 

mean sea level, datum of 1929. 

Drainage area.- 1,947 square miles.' 

Records available.- April 1939 to September 1948. 

Extremes.- Maximum discharge during year, 23,600 second-feet June 25 (gage height, 11.44 

feet); minimum, 4.4 second-feet June 17-23. 

1939-48: Maximum discharge, 89.000 second-feet July 13, 1939 (gage height, 19.25 

feet), from rating curve extended on basis of peak discharge at former station 5 miles 

upstream; minimum, 4.0 second-feet Apr. 14, 1946. 

Maximum stage known, 40.4 feet June 14, 1935, from floodmarks (discharge at former 

station 5 miles upstream, 616,000 second-feet, by slope-area method). 

Remarks.- Records good. Part of flow of Nueces River enters Edwards limestone in Balcones 

fault zone which crosses basin just north of Uvalde. At low stages most of headwater 

flow enters this formation. No diversion above station. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 18 15 14 12 12 12 9.8 7.2 5.6 48 21 13 

2 18 15 14 13 13 11 9.5 7.0 5.4 45 20 14 

3 18 15 14 13 12 11 9.3 7.0 5.4 32 20 14 

4 17 15 14 13 12 11 9.8 6.8 5.4 27 20 13 

5 16 14 13 13 12 11 9.8 7.0 5.2 23 19 12 

6 16 14 13 12 12 11 9.8 6.8 5.1 1,710 18 12 

7 16 14 13 13 12 11 9.3 6.6 4.9 692 18 12 

8 15 14 13 13 12 12 9.0 6.8 4.9 323 18 12 

9 15 14 13 13 12 11 9.0 7.0 4.9 194 18 21 

10 15 14 13 13 12 11 9.3 6.8 4.8 111 18 17 

4.8 93 17 14 

12 15 14 13 13 11 11 9.3 11 15 14 13 13 12 10 9.3 16 

12 4.8 125 17 13 

13 15 14 13 12 12 11 9.0 8.2 4.8 65 17 13 

14 15 14 13 12 12 11 9.0 7.0 4.8 44 16 13 

15 15 13 14 13 12 11 9.0 7.0 4.6 37 16 13 

33 24 12 

17 15 24 14 12 12 10 8.8 7.0 16 15 13 14 13 12 11 8.8 7.0 4.6 

4.5 29 37 12 

18 15 16 14 12 12 11 8.2 7.0 4.5 28 22 12 

19 15 14 14 12 12 10 8.2 6.8 4.4 27 19 12 

20 15 15 14 12 12 11 8.2 6.8 4.4 25 18 12 

4.4 25 17 11 

22 15 15 14 12 12 10 8.2 6.6 21 15 15 14 12 12 11 8.2 6.8 4 4 26 16 11 

23 15 14 14 12 12 10 9.0 6.4 5.1 25 16 12 

24 15 14 14 12 12 11 8.5 9.8 9.5 24 16 11 

25 15 14 14 12 12 11 13 7.7 n8,550 23 15 11 

15 11 

27 15 14 14 12 ' 12 10 7.5 8.0 26 15 14 14 12 12 11 8.5 19 2,290 24 352 23 14 10 

28 15 14 14 12 1? 11 7.2 6.6 291 22 14 10 

29 29 14 14 12 12 10 7.2 6.4 64 22 14 10 

30 17 14 13 12 - 10 7.2 6.4 48 22 14 10 

31 6.2 21 14 16 13 12 - 10 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 496 29 15 16.0 984 

November 437 24 13 14.6 867 

December 422 14 13 13.6 837 _ 

Calendar year 1947 7,586 176 13 20.8 ^ 15,050 

January 385 13 12 12.4 764 

February 348 13 11 12.0 690 

March 334 12 10 10.8 662 

April 266.9 13 7.2 8.90 529 

May 243.7 19 6.2 7.86 483 

June 11,716.2 8,550 4.4 391 23,240 

July 3,968 1,710 21 128 7,870 

August 558 37 14 18.0 1,110 

September 373 21 10 12.4 740 

Water year 1947-48 19,547.8 8,550 4.4 53.4 38,780 

Peak discharge (base, 1,000 sec.-ft.).- June 25 (2:30 p.m.) 23,600 sec.-ft.; July 6 (6 30 a.m.) 3,320 sec.-ft. f Computed on basis of partly estimated gage-height record. 
		

		

		

204 NUECES RIVER BASIN 

Nueces River near Asherton, Tex. 

Location.- Water-stage recorder, lat. 28°30., long. 99°42,, at bridge on county road 

between Asherton and Brundage, 1.2 miles downstream from El Moro Creek and 5.5 miles 

northeast of Asherton, Dimmit County. Datum of gage is 470.9 feet above mean sea 

level, datum of 1929. 

Drainage area.- 4,082 square miles. 

Records available.- October 1939 to September 1948. 

Extremes.- Maximum discharge during year, 5,830 second-feet June 26 (gage height, 25.86 

feet); no flow at times. 

1939-48: Maximum discharge, 24,000 second-feet (revised) Sept. 2, 1944 (gage 

height. 30.40 feet, corrected); no flow at times.. 

Maximum stage known, about 33 feet June 17, 1935, present site and datum, based on 

relation determined from levels to floodmarks of the June 17, 1935, and the Sept. 2, 

1944, floods at farmhouse on left bank, 0.8 mile upstream from gage. 

Revisions.- The maximum discharge and gage height for the water year 1944 have been 

revised to 24,000 second-feet Sept 2, 1944 (gage height, 30.40 feet), superseding 

figures published in Water-Supply Papers 1006 and 1038. 

Remarks.- Records good except those for period Aug. 30 to Sept. 30, which are fair. Part 

or flow of Nueces River and its headwater tributaries enters Edwards limestone in 

Balcones Fault zone which crosses basin just north of Uvalde. At low stages most of 

headwater flow enters this formation. Flow partly regulated by several small reservoirs above station. Diversions above station for irrigation. 

Revisions:- Revised figures of discharge, in second-feet, for the high-water period in 

August and September 1944, superseding those published in Water-Supply Paper 1008 are 

given herewith: 

Aug. 28 

29 13,400 

16,400 Sept. 2 

3 22,900 16,400 31 10,800 4 9,650 

Sept. 1 16,400 

Month Secondfoot-days Maximum Minimum Mean Runoff in 

acre-feet 

August 

September 52,110 

74,396.1 16,400 22,900 0 

0 1,681 

2,480 103,400 

147,600 

Water year 1943-44 149,960.0 22,900 0 410 297,500 Calendar year 1944 149,318.7 22,900 0 408 296,200 

Peak discharge.- Aug. 29, 1944 (12:30 a.m.) 21,800 sec.-ft; Sept. 2, 1944 (7 a.m.) 24,000 sec.-ft. 

Rating table, water year 1947-48 (gage height, in feet, and discharge, In second-feet) 

1.4 0 2.2 16 5.0 182 15.0 1,960 1.5 .1 2.4 24 6.0 272 17.0 2,480 1.6 .4 2.6 33 7.0 386 19.0 3,020 1.7 1.5 2.8 42 8.0 528 21.0 3,600 1.8 3.0 3.0 52 9.0 690 23.5 4,460 1.9 5.8 3.3 68 11.0 1,060 2.0 9.2 4.0 110 13.0 1,480 
NEUCES RIVER BASIN 205 

Discharge, in second-feet, of Nueces River near Asherton, Tex., water year 

October 1947 to October 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

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 -,10!A 000 00000 00000 00000 00000 00000

WM,

00000 00000 00000 00000 000 !.!J=0 

.N WNO 

cl --.)---! 000.

00000

00000

000000000—84.4,„ 

0 443 0 

0 174 0 

0 247 0 

0 721 0 

0 612 0 

0 325 0 

0 262 0 

0 578 0 

0 582 53 

0 274 2,080 

0 155 1,560 

0 101 405 

3 196 159 

0 558 89 

0 359 100 

0 169 52 

0 101 248 

0 65 762 

0 f40 398 

0 f22 165 

0 10 98 7 4.2 66 

0 2.1 35 

252 .8 22 

f3,560 .3 9.E 

f4,440 .1 3.1 1,780 0 1.4 

2,990 0 .4 

2,300 0 .1 

959 0 0 

- 0 

Second— Runoff in Month Maximum Minimum Mean foot—days acre—feet 

October ' 15.3 9.8 0 0.49 30 November 33.8 18 0 1.13 67 

December 0 0 0 o 0 

Calendar year 1947 18,256.7 2,740 0 50.0 36,220 

January 0 0 0 0 0 

February 0 0 0 a 0 

March 0 0 0 0 0 

April 0 0 0 0 o May 126.8 103 0 4.09 252 

June 16,281 4,440 0 543 32,290 

July 6,001.5 721 0 194 11,900 

August 0 0 0 o 0 

September 6,301.3 2,080 0 210 12,500 

Water year 1947-48 28,759.7 4,440 0 78.6 57,040 

Peak discharge (base, 3,000 sec.-ft.).- June 26 (2 a.m.) 5,830 sec.-ft.; June 28 (4:30 a.m.) 3,130 sec.-ft. 

f Computed on basis of partly estimated gage-height record. 

Note.- Oage-height record faulty Aug. 30 to Sept. 30; discharge computed on basis of available 

fragments of gage-height record, weather records, and records for stations near Uvalde and at Cotulla. 
206 NUECES RIVER BASIN 

Nueces River at Cotulla, Tex. 

Location.- Wire-weight gage, lat. 28°26', long. 99°16', at bridge on U. S. Highway 81 at 

Cotulla, La Salle County, a third of a mile upstream from International-Great Northern 

Railroad bridge. Datum of gage is 368.08 feet above mean sea level, datum of 1929. 

Drainage area.- 5,260 square miles. 

Records available.- October 1923 to September 1948. July 1915 to June 1918 at site 4 miles 

upstream. U. b. Weather Bureau has collected gage heights in this vicinity during 1914-

17 and since 1922. 

Average discharge.- 25 years, 312 second-feet. 

Extremes.- Maximum discharge during year, 4,470 second-feet June 27 (gage height, 14.15 

feet); no flow at times. 

1923-48: Maximum discharge, 82,600 second-feet June 18, 1935 (gage height, 32.4 

feet, from floodmarks), by slope-area method; no flow at times. 

Remarks.- Records good. Gage read once daily. Part of flow of Nueces River and its headwater tributaries enters Edwards limestone in Balcones fault zone which crosses basin 

just north of Uvalde. At low stages most of headwater flow enters this formation. Lowwater flow partly regulated by small storage reservoirs above station; most of it is 

diverted above station by pumping. 

Cooperation.- Gage-height record furnished by U. S. Weather Bureau. 

Diecharge, in second-feet, water year October1947 to September1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 000000000

000,/n

.4,sin gl.

=, 

, 

M ill

-: 

00000000000000

000000000000g222 

CD C4 CV el . 

(,11,; 

3,330 

2,820 

1,580 

465 

784 

1,400 

1,460 

946 

525 

619 

591 

153 

328 

365 

482 

815 

733 

252 

16 

0 

0 

37 

19 

14 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

9.3 

4.7 

1.4 

.5 

0 

0 

0 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet I I 1 1 - .. 1 ,1 -. -.I. cep , 8 8080000001 , 000 1

11 

000000000: 0 000

October 0 0 0 

0 0 

0 0 

95.4 69,080 

0 0 

November 0

December 0

Calendar year 1947 34,833.0 

-

January 0 

February 0 

March 0 

April 0 

May 0 

0 

0 

0 

June 13,140 438 26,060 

July 17,749.9 573 35,210 

August 0 

September 5,864 195 11,630 

Water year 1947-48 36,753.9 3,930 0 100 72,900 

Peak diecharge (base, 3,200 sec.-ft.).- June 27 (2 p.m.) 4,470 sec.-ft. 

0 

0 

0 
NUECES RIVER BASIN 207 

Nueces River near Tilden, Tex. 

Location.- Water-stage recorder, lat. 28'18', long. 98°34', at bridge on State Highway 

17J, g miles upstream from Cow Creek and 10.5 miles south of Tilden, McMullen County. 

Datum of gage is 183.3 feet above mean sea level, datum of 1929 (levels by State Highway Department). 

Drainage area.- 8,192 square miles. 

Records available.- November 1942 to September 1948. 

Extremes.- Maximum discharge during year, 2,430 second-feet July 8 (gage height, 16.07 

feet); no flow at times. 

1943-48: Maximum discharge, 57,500 second-feet Oct. 11, 1946 (gage height, 26.46 

feet), from rating curve extended above 30,000 second-feet; no flow at times. 

Remarks.- Records good. Part of flow of Nueces River and its headwater tributaries 

enters Edwards limestone in Balcones fault zone which crosses basin Just north of 

Uvalde. At low stages most of headwater flow enters this formation. Diversions for 

irrigation above station. 

Discharge, in second-feet, water year October1947 to September1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

6.3 18 0.6 0.8 6.8 852 0.4

°i :9°!c° 00000 00000 000000000m 

0.9 

(s " Df 0 000 00000 00000 00000 

0000000 W 2.4 , 

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 

81 13 .5 1.0 .8 3.... 1,360 .2 108 8.9 .5 .9 .7 1.1 1,520 0 

.6 1,440 0 .5 1,520 0 

.4 1,810 0 .5 2,180 0 .5 2,360 0 

59 6.8 .5 .9 .6 21 4.8 .5 1.0 58 

9.9 3.7 .5 1.0 24 6.1 3.0 .5 1.0 11 3.6 2.3 .5 1.0 39 2.6 1.9 .5 f1.2 27 1.8 1.7 .5 f1.2 11 

1.6 1.6 •.5 1.1 5.7 1.1 1.7 .5 1.3 3.6 

.4 2,180 36 

, w0000 00000 00000 00000 

.3 o

2.4

.1 

0 

0 

61 

87 

19 

15 

7.2 

3.0 

1.5 

.8 

.4 

.3 

.1 

.1 

0 

48 

279 

444 

368 

74 

1,700 

1,340 

1,280 

1,420 

1,230 527 

334 

322 

370 

512 

624 

494 

200 

loa 

63 

35 

21 

7.0 

20 

13 

8.7 

4.5 

2.1 

139 

458 

624 

740 

520 

136 

78 

132 

388 

554 

403 

0000000000000000 

1.0 2.7 .5 2.3 2.8 .9 3.9 .4 2.0 2.0 .8 14 .4 1.7 1.6

.8 7.1 .5 1.5 1.0 .8 11 .5 1.4 .9 3.9 17 .5 1.2 .8 3.1 12 .6 1.1 .8 132 6.6 .6 1.0 .8 

244 4.5 .6 1.5 .7 109 3.6 .6 1.4 .6 50 2.7 .6 1.0 .6 300 2.0 .6 .9 .6 610 1.5 .7 1.1 .6 

26 527 1.0 .7 1.2 .6 27 145 .9 .7 ,1.2 .6 16 54 .8 .7 1.1 13 188 9.7 100 28 .6 29 38 .8 .6 1.0 .6 30 24 .7 .6 .5 7.6 54

31 .6 .6 : .2 5.9

Month Secondfoot-days Maximum Minimum Mean Runoff in 

acre-feet 

October 

November 

December 

92.2 2,546.3 

160.8 

39 

610 

18 

0 

.8 

.6 

2.97 

84.9 

5.19 

183 5,050 

319 

Calendar year 

January 

February 

March 

April 

May 

June 

July 

August 

September 

1947 - 109,528.5 13,300 -- - - - - - 17.1 .7 35.0 2.3 199.2 58 

56.3 35 1,422.9 444 83.7 48 25,854.2 2,360 21.8 5.8 4,608.3 740 

0 

.4 

.8 

.2 

0 

0 

0 

5.9 

0 

0 

300 

.55 

1.21 

6.43 

1.88 

45.9 

2.79 834 .70 154 

217,300 

34 

69 

395 

112 2,820 

166 51,280 43 9,140 

Water year 1947-48 35,097.8 2,360 0 95.9 69,610 

Peak discharge (base, 3,600 sec.-ft .).-No peak above base. T Computed on basis of 'partly estimated gage-height record. 
208 NUECES RIVER BASIN 

Nueces River near Three Rivers, Tex. 

Location.- Water-stage recorder, lat. 28°26'10", long. 98°11'10", 100 feet downstream 

from San Antonio, Uvalde & Gulf (Missouri Pacific) Railroad bridge, half a mile downstream from Frio River, and 2 miles southeast of Three Rivers, Live Oak County. Datum 

of gage is 101.16 feet above mean sea level, datum of 1929. 

Drainage area.- 15,600 square miles. 

Records available.- July 1915 to September 1948. U. S. Weather Bureau has collected 

gage-height records in this vicinity since 1922. 

Average discharge.- 31 years (1915-18, 1920-48), 824 second-feet. 

Extremes.- Maximum discharge during year, 5,950 second-feet July 3 (gage height, 22.70 

feet); no flow at times. 

1915-48: Maximum discharge observed, 85,000 second-feet Sept. 18, 1919 (gage height, 

46.0 feet), from rating curve extended above 55,000 second-feet; no flow at times. 

Remarks.- Records good. Part of flow of Nueces and Frio Rivers and their headwater tributaries enters Edwards limestone in Balcones fault zone which crosses basin Just north 

of Uvalde. At low stages most of headwater flow enters this formation. Diversions 

above station for irrigation. 

Revisions (water years).- W 548: 1920, 1921. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 2.2 2.5 49 15 16 28 9.7 10 90 2,260 

2 2.3 2.5 40 13 20 25 9.7 6.7 40 3,460 3 2.1 25 34 12 31 21 8.6 11 20 5,740 4 2.2 103 29 12 38 20 8.6 9.4 10 4,670 5 2.9 76 23 11 38 21 7.9 6.2 5.8 3,250 

6 2.8 46 20 11 34 25 8.3 4.4 3.7 2,680 7 2.8 26 17 12 30 53 7.6 3.1 2.2 2,560 8 2.8 14 15 12 27 40 7.2 2.5 1.5 2,560 9 2.5 10 13 12 23 43 7.0 2.2 1.0 2,470 10 2.2 7.6 13 12 21 59 6.5 1.9 .9 2,350 

11 2.2 9.0 14 12 20 41 5.8 2.2 1.1 1,970 12 2.1 7.0 14 12 20 33 5.0 3.1 1.5 1,990 13 2.3 6.7 24 12 18 28 4.6 15 2.8 2,620 14 2.2 6.7 33 10 16 24 3.7 26 2.3 2,320. 15 1.9 5.3 50 10 16 21 3.8 12 1.0 1,630 

16 1.6 4.8 103 10 16 20 4.2 47 .5 682 

17 1.5 6.3 87 9.4 16 18 4.0 47 .4 410 18 1.5 460 55 9.0 16 18 3.5 20 .2 400 

O '1:c9I""? M 0,01 M , N00 00000 00000 00000 ;82,f,22 

N. 

.4

,WN

.7 

23 

14 

9.7 

6.7 

5.0 

4.0 

3.6 

3.1 

32 

94 

63 

34 

18 

28 

20 

12 

12 

73 

382 

588 

730 

442 

136 

82 

122 

311 

470 

316 

153 

99 

19 1.5 667 45 14 15 17 3.5 16 .2 430 

20 1.4 103 46 14 16 16 3.3 9.0 .2 588 

21 40 92 38 14 19 15 3.1 5.3 .1 706

22 38 232 33 15 32 13 3.3 3.1 .1 430 

23 16 167 30 16 60 12 4.0 2.2 0 192 

24 8.3 92 26 14 85 10 4.4 1.6 .1 119 

25 5.3 271 22 14 58 11 5.8 1.8 .2 81 

26 3.8 610 19 16 41 11 11 15 .1 55 27 3.7 500 18 16 34 10 35 17 0 38 28 2.9 152 16 15 30 9.7 54 6.4 0 30 29 2.9 84 16 16 28 9.4 38 202 64 22 30 3.5 63 15 16 9.4 21 355 1,060 16 31 3.3 - 16 16 - 9.4 294 12 -

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 170.7 40 1.4 5.51 339 November 3,851.4 667 2.5 128 7,640 December 973 103 13 31.4 1,930 

Calendar year 1947 152,481.4 -

9,800 1.4 418 302,400 

January 402.4 16 9.0 13.0 798 February 834 85 15 28.8 1,650 March 690.9 59 9.4 22.3 1,370 

April 302.1 54 3.1 10.1 599 May 1,158.1 355 1.6 37.4 2,300 June 1,309.9 1,060 0 43.7 2,600 July 46,741 5,740 12 1,508 92,710 August 3,969.3 1,810 0 128 7,870 September 4,286.0 730 3.1 143 8,500 

Water year 1947-48 64,688.8 5,740 0 177 128,300 

Peak discharge (base, 6,000 sec.-ft.).- No peak above base. 

Rote.- Discharge for July 17-22, Aug. 7-25 computed from graph based on daily staff-gage readings fuR7Tfied by U. S. Weather Bureau. 
		

		

- 		- - 

209 NUECES RIVER BASIN 

Nueces River near Mathis, Tex. 

Location.- Water-stage recorder, lat. 28°02., long. 97°521 , at bridge on U. S. Highway 59, 

200 feet downstream from Texas & New Orleans Railroad bridge, 0.8 mile downstream from 

Lake Corpus Christi Dam, and 4 miles southwest of Mathis, San Patriclo County. Datum of 

gage is 27.53 feet above mean sea level, datum of 1929. 

Drainage area.- 16,660 square miles. 

Records available.- August 1939 to September 1948. 

Extremes.- Maximum discharge during year, 3,830 second-feet July 5 (gage height, 16.29 

feet); minimum daily, 17 second-feet Dec. 17. 

1939-48: Maximum discharge, 49,400 second-feet July 12, 1942 (gage height, 37.38 

feet); minimum, 3.7 second-feet Aug. 15, 1940; minimum daily, 6.8 second-feet Aug. 15, 

1940. 

Maximum stage known, 39.9 feet in September 1919 at railroad bridge 200 feet upstream, 

from floodmark identified by Texas & New Orleans Railroad. 

Remarks.- Records good. Flow partly regulated by Lake Corpus Christie. (Original capacity 

at spillway crest, about 64,000 acre-feet, as determined by Texas State Board of Water 

Engineers, computed from Geological Survey advance topographic sheets, scale 1:48,000, 

contour interval, 10 feet; the U. S. Soil Conservation Service in connection with siltation survey determined original capacity to have been 54,000 acre-feet in 1942, and 

capacity in 1948 to be 39,400 acre-feet, indicating a loss of 14,600 acre-feet by siltation). Part of flow of Nueces River and its headwater tributaries enters Edwards limestone in Balcones fault zone which crosses basin lust north of Uvalde. At low stages 

most of headwater flow enters this formation. Diversions for irrigation above station. 

Records of chemical analyses and water temperatures for water year 1948 are given in 

Water-Supply Paper 1133. 

Rating table, water year 1947-48 (gage height, in feet, and discharge, in socond-feet) (Shifting-control method used Apr. 15 to July 4, July 25 to Sept. 30) 

2.3 14 3.0 55 5.0 301 10.0 1,690 2.4 18 3.5 94 6.0 501 12.0 2,340 2.6 28 4.0 143 7.0 750 14.0 3,000 

2.8 41 4.5 213 8.0 1,050 16.0 3,720 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

89 70 a19 32 33 30 32 39 43 34 39 84 

2 

1 88 71 23 27 33 30 32 54 31 35 36 52 

3 88 72 69 25 33 30 32 35 30 36 36 44 

4 91 72 52 24 32 30 32 44 51 840 36 42 

87 71 32 22 31 33 33 48 71 3,500 50 41 5 

86 70 36 22 30 32 38 33 62 3,650 62 39 

7 

6 87 72 28 22 29 32 33 32 32 2,970 40 39 

8 86 73 27 37 29 32 31 33 32 2,600 39 42 

g 86 73 26 78 28 32 67 34 31 2,500 39 42 

10 87 72 24 74 28 30 30 50 32 2,410 39 216 

87 74 44 75 28 31 29 71 31 2,270 39 256 

12 

11 85 72 28 71 28 31 27 35 45 2,110 49 164 

13 85 73 22 54 29 31 28 33 60 2,010 65 85 

14 84 73 20 58 32 31 34 32 41 2,440 36 64 

15 84 71 a19 50 32 31 55 32 54 2,370 35 56 

83 72 a18 35 31 31 55 32 47 1,850 38 50 

17 

16 83 72 all 35 31 31 35 33 32 1,180 40 41 

18 84 74 a18 35 31 32 36 47 40 698 40 40 

19 84 74 88 36 31 32 36 45 40 457 39 38 

20 82 75 66 35 30 26 36 33 40 348 40 49 

21 81 74 32 35 30 25 38 32 42 368 39 183 

22 83 76 32 35 30 24 37 31 72 446 51 416 

23 82 73 31 35 31 26 54 33 g77 457 74 468 

24 77 71 30 35 SO 27 57 39 g45 283 57 330 

25 76 64 30 35 30 46 38 f29 g29 169 40 182 

26 76 56 30 36 30 39 34 41 30 104 39 147 

27 77 29 29 35 30 31 33 33 35 77 41 171 

28 78 28 29 35 30 31 33 33 45 54 40 247 

29 76 20 29 35 30 31 32 32 48 44 49 256 

30 76 an 29 35 - 32 33 61 44 41 80 182 

31 14 - 35 33 - 32 - 58 39 78 

Second- Runoff In Month Maximum Minimum Mean foot-days acre-feet 

October 2,572 91 74 83.0 5,100 November 1,957 76 20 65.2 3,880 

December 1,012 88 17 32.6 2,010 

Calendar year 1947 163,144 11,200 17 447 323,600 -

January 1,231 78 22 39.7 2,440 February 880 33 28 30.3 1,750 March 962 46 24 31.0 1,910 April 1,120 67 27 37.3 2,220 May 1,217 71 29 39.3 2,410 June 1,312 77 29 43.7 2,600 July 36,390 3,650 34 1,174 72,180 August 1,425 80 35 46.0 2,830 September 4,046 468 38 135 8,030 

Water year 1947-48 54,124 3,650 17 148 107,400 

a No gage-height record: discharge computed on basis of estimated gage-height record. 

f Computed on basis of partly estimated gage-height record. 

g Computed from graph based on gage readings. 
210 NUF.CES RIVER BASIN 

Nieces River seepage investigation 

A series of discharge measurements was made Apr. 20-22, 1948, on the Nueces River and 

its tributaries, Texas, between the gaging station near Mathis and a point 25} miles downstream, to determine the seepage gains or losses between the gaging station near Mathis 

and the city of Corpus Christi Water Works Plant at Calallen. The gates on Mathis Dam 

were not changed for several days preceding or during the investigation, thereby maintaining a constant stage of the river. All tributqcies were investigated for inflow but none 

was found. 

Discharge measurements of Nueces River and tributaries, Texas, between gaging station near 

Mathis and Corpus Christi Water Works Plant at Calallen, 1948 

Approximate Total Stream distance Gain or Main Tribu- gain Date or Location (miles) loss in Lary Diversion below initial stream section or point loss 

Apr. 20 Nueces River near Regular gaging station... 0 35.3 - - - Mathis, Tex. 20 Nueces River 4.1 miles south southwest 1.0 7.6- -4.7 of Mathis. 20 .do 4.1 miles south of Mathis 2.6 :..5.,:, +4.4 20 Arroyo (name not At confluence with Nueces 4.5 known). River; 4.0 miles south southeast of Mathis. 20. Arroyo Nombre de At confluence with Nueces 4.9 - 0- - Dios. River; 4.3 miles south 

southeast of Mathis. 20 Nueces River 4.4 miles south southeast 5.' 33.2 -1.8 -2.1 of Mathis. 20 .do 3.7 miles north northwest 7.0 33.0 -.2 -2.3 of San. Patricia. 21 do 2.7 miles north northwest 8.9 33.4- +.4 -1.9 of San Patricia. 21 do 2.2 miles north northwest 10.9 35.8- +2.4 +.5 of San Patricia. 21 Javelin Creek at 2.4 miles west northwest 11.7 - 0 - -

confluence with of San Patricia. Nue:re, River. 

Sandy Hollow at 2.5 miles west northwest 12.0 - - - confluence with of San Patricia. Nueces River. 21 Nueces River 2.3 miles west northwest 13.4 34.0- -1.8 -1.3 of San Patricia. 21 .do 2.4 miles southwest of 15.7 35.9- +1.9 +.6 San Patricia. 22 do 1.7 miles south of San 18.1 36.5- +.6 +1.2 Patricia. 22 .do 2.5 miles south southeast 19.9 38.0- +1.5 +2.7 of San Patricia. ?2 Dismaro Slough 4.7 miles south southeast 23.5 - - of San Patricia. 22 Nueces River 4.7 miles south southeast 23.6 35.6 -2.4 +.3 of San Patricia. 22 ....do 6.2 miles southeast of San 25.5 34.6 - -1.0 -.7 Patricia. 

Note.- Last measurement made Is IC miles upstream from Corpus Christi Water Works Plant. Pool con- d1TTO7W prevented additional discharge measurements. There was no inflow between point of last meas- urement and water works plant. 
. 

. NUECES RIVER BASIN 211 

Nueces River at Calallen, Tex. 

Location.- Staff gage, lat. 27°52.40", long. 97°37,35", at old pump house of city of 

Corpus Christi, half a - mile northwest of Calallen, Nueces County, and half a mile 

upstream from tidewater and breakwater dam. Datum of gage is 1.12 feet above mean 

sea level, datum of 1929. 

Drainage area.- 16,920 square miles. 

Records available.- August 1915 to September 1948 (1918-48 gage heights only). 

Extremes.- Maximum gage height observed during year, 6.62 feet July 7; minimum observed, 

1.hb Feet May 31. 1915-48: Maximum gage height observed, 13.58 feet July 13, 1942; no flow Aug. 23-

29, 1918 (only period of no flow known). 

Remarks.- Discharge not computed. Gage read twice daily. 

Cooperation.- Gage readings furnished by city of Corpus Christi. 

Gage height, in feet, water year October 1947 to September 1948 

Day Oot. Nov. Deo. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 3.54 3.54 2.88 3.06 

.."

3.21 3.00 2.62 2.39 3.53 3.60 3.75 2 3.52 3.57 2.82 3.04 .` -),,

3.22 2.94 2.54 2.67 3.54 3.54 3.68 3 3.52 3.49 2.69 2.87 ,'n

"

3.07 3.00 2.47 2.91 3.45 3.42 3.67 

4 3.59 3.44 2.85 2.89 

"'42'2' n

,,,.

3.01 3.02 2.62 2.45 3.45 3.21 3.55 5 3.67 3 45 3.44 2.87 i

3.26 2.96 2.73 1.94 5.12 2.95 3.59 

6 3.56 3.40 3.32 2.65 

,,,,, ,

3.54 2.76 2.63 2.48 6.12 2.80 3.59 7 3.57 3 40 3.36 2.73 

•

,,,

3.47 2.47 2 75 3.43 6.59 3.16 3.57 8 3.53 3 43 3.29 2.66 ,,

-

3.44 2.41 2.54 3.46 6.55 3.46 3.50 9 3.55 3.48 3.19 2.38 3.43 2.20 2.44 3.30 6.36 3.42 3.71 10 3.54 3.49 2.90 3.26 4

3.28 2.21 2.25 3.25 6 30 3.29 3.66 

11 3 57 3.60 2.86 3.57 

,,

8

3.20 3.12 1.89 2.85 6.27 3.00 4.09 12 3 64 3.60 2.80 3.58 

,,

3.14 3.12 2.76 2.39 6.19 2.84 4.18 13 3.64 3.72 3.53 3.61 ;=,T ,, .. ,N

3.15 2.90 3 35 2.11 6.04 2.62 4.01 14 3 67 3.69 3.38 3.55 

•

3.15 2.65 3.22 2.18 6.00 2.50 3.85 15 3.65 3.65 3.38 3.41 •.

3.19 2.43 2 94 2.44 6.17 3.25 3.76 

16 6 59 3.63 3.16 3.43 8gn EV8 ,,,

3.12 2.39 2 76. 2.37 6.21 3.24 3.75 17 3 63 3.64 3.10 3.23 •,,,

3.25 2.82 2.57 2.48 5 93 3.29 3.72 18 3.60 3.67 2.77 3.22 ..,,

3.11 3.16 2.21 2.59 5.46 3.30 3.63 19 3 64 3.61 2.67 3.36 ,,,

3.14 2.97 2.03 2.40 4.92 3.16 3.63 20 3.66 3.61 2.98 3.28 •

.

.

,

3.02 2 82 2.35 2.40 4.54 3.02 3.59 

21 3 57 3.61 3.70 3.28 

..,

,

3.03 2.63 2.57 2.43 4.37 2.76 3.60 22 3 54 3.78 3.44 3.29 ..

1

,

3.01 2.53 2.49 2.13 4.38 2.43 3.85 23 3.55 3.92 3.07 3.27 222,..;

2.80 2.54 2.20 2.11 4.48 2.32 4.33 24 3.61 3.70 3.03 3.34 ..no.

2.56 2.70 3.26 2.92 4.48 2.36 4.46 25 3.57 3.59 3.02 3.37 ,Z1

2.34 3.27 3.53 3.57 4.29 3.07 4.27 

26 3.62 3.70 3.03 3.37 

c' c,,,,,

.f

2.46 3.45 3.56 3.40 4.03 3.42 4.10 27 3 52 3.58 3.02 3.27 ,,, -

2.95 3.25 3.40 3.06 3.84 3.32 3.95 28 3.51 3.44 2.94 3.24 ,

3.14 3.08 3.23 2.92 3.77 3.33 3.99 29 3.55 3.26 3.01 3.13 ,,cq

3.15 2.88 2.56 2.73 3.69 3.60 4.11 30 3.54 3.21 2.98 3.07 . , 

2.99 2.71 1.75 3.29 3 62 3.59 4.17 31 3.51 3.11 2.98 2.92 - 1.75 3.58 3.73 -
212 NUECES RIVER BASIN 

West Nueces River near Brackettville, Tex. 

Location.- Water-stage recorder, lat. 29°28'55", long. 100°14'20", at Bruce Ranch, 11 

miles upstream from Llveoak Creek and 15.8 miles northeast of Brackettville, Kinney 

County. Datum of gage is 1,326.8 feet above mean sea level, datum of 1929. 

Drainage area.- 700 square miles. 

Records available.- September 1939 to September 1948. 

Extremes.- Maximum discharge during year, 51,000 second-feet June 25 (gage height, 20.95 

feet, from floodmark), by slope-area method; no flow most of time. 

1939-46: Maximum discharge, that of June 25, 1948; no flow most of time. 

Maximum stage known, 48.0 feet June 14, 1935, from floodmark, at site 0.6 mile 

above gage- (discharge at a point 33 miles upstream from gage and 2f miles below 

Kickapoo Creek, 580,000 second-feet, by slope-area method; a second determination 24 

miles below gage and 8 miles north of Cline, 536,000 second-feet, by slope-area method). 

Remarks.- Records fair. In ordinary years most of runoff from basin is lost by seepage 

into Edwards limestone above station. No diversions above station. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. . Feb. Mar. Apr. May June July Aug. Sept. 

1 - 2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

It 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

000000000

000000 00000

00 00000 000000 

000,..„ 8 

w q 

Second- Runoff in Month Maximum Minimum Mean foot-days - acre-feet 

October 0 November 0 December 0 

Calendar year 1947 1,242.5 

January 0 February 0 March 0 

Cs! 

000N I000000000 

ct ; 

00

001000000000 

0 o 0 0 0 0 

3.40 2,470 

0 0 0 0 0 0 0 0 0 0 429 25,510 .94 58 0 0 0 0 

April 0 

May 0

June 12,859.2

July 29.1 

August 0 September 0

Water year 1947-48 12,888.3 11,500 0 35.2 25 570 

Peak discharge (base, 1,000 eec.-ft.).- June 24 (6 p.m.) 4,960 sec.-ft.; June a.m. 51, 

sec.-ft. 
		

		

NUECES RIVER BASIN 213 

Frio River at Concan, Tex. 

Location.- Water-stage recorder, lat. 29°29', long. 99°42', half a mile southeast of Concan post office, Uvalde County, and 15 miles upstream from Dry Frio River. Datum of 

gage is 1,203.71 feet above mean sea level, datum of 1929. 

Drainage area.- 485 square miles. • 

Records available.- October 1923 to September 1948. 

Average discharge.- 23 years (1924-29, 1930-48), 104 second-feet. 

Extremes.- Maximum discharge during year 195 second-feet June 11; maximum gage height, 

2.34 feet June 25; minimum discharge, 7.5 second-feet Sept. 8. 

1923-48: Maximum discharge, 162,000 second-feet July 1, 1932 (gage height, 34.44 

feet, from floodmarks), by slope-area method; minimum, that of Sept. 8, 1948. 

Remarks.- Records excellent. Part of flow of Frio River enters Edwards limestone in 

Balcones fault zone which crosses basin just north of Uvalde and below station. Most 

of low flow enters this formation. No diversion above station. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 31 32 43 41 43 44 37 30 34 26 20 9.6 

2 31 32 43 41 51 43 37 29 31 32 22 8.9 

3 31 32 43 41 46 43 37 27 30 53 20 8.9 

4 31 32 44 41 44 43 37 26 29 40 18 8.9 

5 31 32 44 41 44 43 37 25 26 32 18 8.9 

6 31 32 46 41 44 43 37 24 24 30 18 8.9 

7 31 31 48 41 48 43 37 23 23 30 18 8.2 

8 31 31 4841 46 43 35 23 23 30 17 11 

9 31 31 46 41 43 43 35 23 22 29 16 30 

10 31 32 46 41 41 43 34 23 23 27 15 20 

11 31 32 46 41 41 41 34 31 68 27 14 16 

12 30 32 46 41 41 34 32 29 32 13 15 

13 30 34 44 40 40 40 32 30 25 31 13 14 

14 30 37 46 38 40 40 32 29 23 30 13 13 

15 30 35 48 38 40 40 31 27 23 29 12 13 

16 30 35 44 40 40 38 31 26 22 27 12 13 

17 30 40 44 40 40 38 30 25 20 29 12 13 

18 30 43 44 40 41 38 30 24 19 27 12 13 

19 37 40 44 41 41 38 29 23 18 27 11 13 

20 32 40 44 41 40 38 29 23 17 26 11 14 

21 31 41 43 41 40 38 29 23 17 26 9.6 14 

22 30 46 43 40 40 37 29 23 17 25 9.6 16 

23 30 44 41 40 41 . 37 32 22 20 26 9.6 18 

24 31 43 41 40 41 37 32 29 70 25 10 18 

25 31 43 41 40 43 38 46 29 116 24 11 18 

26 31 43 41 41 44 37 40 26 67 23 12 17 

27 31 43 41 41 53 35 35 44 38 23 13 15 

28 31 43 41 41 46 37 32 46 30 22 13 14 

29 37 43 40 41 44 37 31 41 27 22 12 15 

30 35 43 41 40 37 30 40 26 20 10 15 

31 34 - 43 40 - 37 35 20 9.6 -

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 972 37 30 31.4 1,930 November 1,117 46 31 37.2 2,220 December 1,357 48 40 43.8 2,690 - _ Calendar year 1947 28,931 1,030 30 79.3 57,390 - _ - January 1,255 41 38 40.5 2,490 February 1,246 53 40 43.0 2,470 March 1,230 44 35 39.7 2,440 April 1,011 46 29 33.7 2,010 May 881 46 22 28.4 1,750 June 957 116 17 31.9 1,900 July 870 53 20 28.1 1,730 August 424.4 22 9.6 13.7 842 September 420.3 30 8.2 14.0 834 

Water year 1947-48 11,740.7 116 8.2 32.1 23,310 

Peak discharge (base, 750 sec.-ft.).- No peak above base. 
214 NUECES RIVER BASIN 

Frio River near Derby, Tex. 

Location.- Water-stage recorder and concrete control, lat. 28°44'10", long. 99°08'45", 

at bridge on U. S. Highway 81, 150 feet upstream from International-Great Northern 

Railroad bridge, 750 feet downstream from Leona River, and 2.4 miles south of Derby, 

Frio County. Datum of gage is 449.3 feet above mean sea level, datum of 1929. 

Drainage area.- 3,493 square miles. 

Records available.- August 1915 to September 1948 

Average discharge.- 33 years, 150 second-feet. 

Extremes.- Maximum discharge during year, 9,200 second-feet June 28 (gage height, 10.83 

feet); no flow at times. 

1915-48: Maximum discharge, 230,000 second-feet July 4, 1932 (gage height, 29.60 

feet, present site, from floodmarks at former site), by slope-area method; no flow 

at times. 

Remarks.- Records fair. Part of flow of Frio River and its headwater tributaries enters 

5dwards limestone in Balcones fault zone which crosses basin just north of Uvalde. At 

low stages most of headwater flow enters this formation. Diversions above station 

for irrigation. 

Revisions (water years).- W 568: 1915, 1916, 1918-22, drainage area. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 0 0 2 0 u 3 0 0 4 0 0 5 0 0 

6 0 7 0 8 0 9 0 10 0 

11 0 12 •0 13 0 14 d 15 0 

16 0 17 0 18 0 19 0 20 0 

21 0 22 0 23 0 24 0 25 281 

26 908 27 . 4,420 28 5,690 29 722 30 232 31 

000000 00000 00000 0000...-..,

0 

0 

0 

0 

0 

30 

32 

35 

25 

6.2 

1.0 

.5 

.2 

.2 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

-

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 0 0 0 0 0 November 0 0 0 0 0 December 0 0 0 0 0 

Calendar year 1947 10,313.1 2,620 0 28.3 20,460 

January 0 0 0 0 0 February 0 0 0 0 0 March 0 0 0 0 0 April 0 0 0 0 0 May 0 0 0 0 0 June 12,253 5,690 0 408 24,300 July 1,138.8 743 0 36.7 2,260 August 0 0 0 0 0 September 130.1 35 0 4.34 258 

Water year 1947-48 13,521.9 5,690 0 36.9 26,820 

Peak discharge (base, 1.100 sec.-ft.).- June 28 (1:30 a.m.) 9,200 sec.-ft. 

a No gage-height record; discharge computed on basis of recorded range in stage. 

f Computed on basis of partly estimated gage-height record. 
		

NUECES RIVER BASIN 215 

Frio River at Calliham, Tex. 

Location.- Water-stage recorder and concrete control, lat. 28°29'30", long. 98°20'45", at 

bridge on Calliham-Whitsett highway, 1 mile north of Calliham, McMullen County, and 

9.7 miles downstream from San Miguel Creek. Datum of gage is 153.47 feet above mean 

sea level, datum of 1929. 

Drainage area.- 5,491 square miles. 

Records available.- October 1924 to April 1926, April 1932 to September 1948. 

Average discharge.- 17 years (1924-25, 1932-48), 274 second-feet. 

Extremes.- Maximum discharge during year, 4,760 second-feet July 2 (gage height, 19.18 

Feet); no flow at times. 

1924-26, 1932-48: Maximum discharge, 109,000 second-feet July 6, 1932 (gage 

height, 39.20 feet, from floodmarks), by slope-area method; no flow at times. 

Remarks.- Records good. Part of flow of Frio River and its headwater tributaries 

ends Edwards limestone in Balcones fault zone which crosses basin just north of 

Uvalde. At low stages most of headwater flow enters this formation. Diversions 

above station for irrigation. 

Revision.- W 788: Drainage area. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

N ON, =4LA N NNNNN N.CA CA C. NNO .. 

bi3 OC. io bb k,iA 6 

4.8 

4.0 

3.0 

2.5 

2.5 

2.5 

2.4 

2.2 

2.2 

2.4 

3.0 

2.5 

2.0 

1.6 

1.3 

1.2 

1.1 

1.1 

1.0 

1.0 

.9 

.8 

.7 

.7 

.6 

.6 

.6 

.5 

.4 

. 00000 00000 100000 00000 Goo 0 

an, n,Co i,l ift,

00000 000

00 00000 00000 00000 000 0N , ra 

u?1r! 00000 0000

000000 00000 0000

=

0 a 0000

.s==0

0000000000000000 

ow)mo

.... 

00000 00004 

000000 00000 , 

3.8 1.2 2.8 1.1 2.2 .9 1.8 .8 1.5 .7 

1.3 

1.2 

1.2 

1.2 

1 1 .b 

1.1 .7 1.2 .8 3.0 .8 

1,410 0.7 3,780 .6 3,030 .4 1,140 .3 

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 

900 .1

856 

774 0 430 0 178 0 93 0

55 0 34 0 296 0 5.6 .8 434 0 11 .8 107 0 

42 0 42 0 28 0 18 0 10 0 

6.7 0 4.5 0 

30 .8 17 .8 8.8 .8 6.7 1.1 5.0 1.2 

4.2 1.3 4.0 1.7 3.5 3.0 2.5 2.8 2.2 2.4 

3.0 0 2.4 0 2.1 0 

26 2.0 2.2 1.7 0 27 1.7 2.5 1.2 0 1.0 0 .9 0 .8 0 .8 0 

28 1.5 2.5 29 1.3 2.5 30 1.2 2.5 .4 31 1.1 2.5 . .4 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 0 0 0 0 0 November 476 239 0 15.9 944 December 132.7 30 1.1 4.28 263 

Calendar year 1947 19,771.6 1,480 0 54.2 39,220 

January 42.2 3.0 .5 1.36 84 February 159.2 23 2.2 5.49 316 March 50.9 4.8 .4 1.64 101 April 2.3 .7 0 .08 4.6 May 2.0 1.5 0 .06 4.0 June 812 642 0 27.1 1,610 July 13,682.1 3,780 .8 441 27,140 August 2.2 .7 0 .07 4.4 September 11.4 3.0 0 .38 23 

Water year 1947-48 15,373 3,780 0 42.0 30,490 

Peak discharge ase, 4,000 sec.-ft.).- July 2 (9:30 p.m.) 4,760 sec.-ft. Note.- No gage-height record Sept. 1 -30; discharge computed on basis of recorded range in stage, weiTEW? records, and records for nearby stations. 

905771 0-50- 15 
		

216 NUECES RIVER BASIN 

Sabinal River near Sabinal, Tex. 

Location.- Water-stage recorder, lat. 29°30, , long. 99°29,, 470 feet upstream from low-

---WNITF-road crossing on Sabinal-Utopia road, 3.5 miles downstream from Onion Creek, 

and 12 miles north of Sabinal, Uvalde County. Datum of gage is 1,131.2 feet above 

mean sea level, datum of 1929. 

Drainage area.- 206 square miles. 

Records available.- October 1942 to September 1948. 

Extremes.- Maximum discharge during year, 282 second-feet Sept. 4 (gage height, 2.26 

feet); no flow at times. 1942-48: Maximum discharge, 9,800 second-feet June 24, 1947 (gage height, 9.60 

feet); no flow at times. 

Flood of July 2, 1932, reached a stage of about 29.9 feet, from information by 

local residents; discharge, 72,000 second-feet, by slope-area method, at Sabinal, 12 

miles downstream from gage. 

Remarks.- Records good except those when flow was leakage through control, which are 

fair. No diversion above station. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. g: Wo ..m.7.Tn000 00000 00000 00000 oomao 

['.1, NW -....,,,

1.4 0 1.7 0 8.1 0 4.9 39 

1 2.4 1.0 1.7 4.9 5.6 9.7 4.9 1.0 

2 2.4 .6 2.0 4.2 8.6 8.6 4.9 1.0 

3 2.4 .5 2.0 4.2 7.0 8.6 4.9 1.0 4 2.4 .4 1.7 4.2 6.3 8.6 4.9 .8 5 2.4 e.3 1.4 4.2 6.3 8.6 4.9 .8 2.9 24 

6 2.0 e.2 1.7 4.2 5.6 8.6 4.9 .8 1.4 1.4 7 2.0 e.4 2.0 4.2 5.6 8.6 4.9 . 1.2 e.2 8 1.7 e.2 2.4 4.2 5.6 8.6 4.9 .6 9 1.7 e.2 2.4 4.2 5.6 8.6 4.9 .7 10 2.0 e.6 2.4 4.2 6.3 8.6 4.2 .7 

11 2.0 .8 2.4 4.2 6.3 7.8 4.2 1.2 12 1.4 1.0 2.4 4.2 6.3 7.8 4.2 2.0 13 1.4 1.0 2.4 4.2 6.3 7.8 3.5 1.4 14 1.2 1.0 2.9 4.2 6.3 8.6 3.5 1.0 15 1.0 1.0 5.6 4.2 6.3 8.6 2.9 .8 

16 1.0 1.0 4.9 4.2 7.0 7.8 2.9 .6 17 1.0 3.3 4.2 4.2 7.0 7.8 2.9 .4 18 1.0 2.9 4.2 4.2 7.0 7.8 2.4 e.4 19 .8 2.0 4.2 4.9 7.0 6.3 2.4 ae.3 20 .7 1.7 4.2 4.9 6.3 6.3 2.4 ae.2 

21 .5 1.7 4.2 4.9 6.3 6.3 2.4 ae.2 22 .4 1.7 4.2 4.9 6.3 5.6 2.4 ae.1 23 .4 1.7 4.2 4.2 6.3 5.6 4.2 ae.1 24 .3 1.7 4.2 4.2 7.0 6.3 2.9 a0 25 .3 1.7 4.2 4.2 7.8 6.3 4.9 a0 

26 .4 1.7 4.2 4.9 7.8 6.3 2.9 2.0 27 .4 1.4 4.2 4.9 12 5.6 1.7 3.5 28 .4 1.4 4.2 4.9 9.7 5.6 1.0 1.2 29 1.2 1.4 4.2 4.9 8.6 5.6 1.0 .7 

1.0 ae.2 e.6 e43 e.3 23 

e.3 4.2 3.7 1.4 14 .6 11 e.2 6.3 ae.2 

3.5 ae.1 2.9 ae.l 2.4 e2.7 1.7 1.2 1.4 1.0 

1.2 e.2 1.0 e5.8 1.0 16 .8 5.6 .5 2.4 

e.3 1.4 e.2 .8 ae.2 e.3 ae.1 ae.2 30 1.0 1.7 4.2 4.9 5.6 1.0 e.4 ae.1 ae.1 31 1.0 4.9 4.9 - 4.9 ae.3 ae.l

Month Secondfoot-days Maximum Minimum Mean Runoff in 

acre-feet 

October 39.2 2.4 0.3 1.26 78 November 36.2 3.3 .2 1.21 72 December 104.0 5.6 1.4 3.35 206 - - Calendar year 1947 8,364.3 1,120 .2 22.9 16,590 

January 

February 

March 

137.9 

200.1 

227.4 

4.9 

12 

9.7 

4.2 

5.6 

4.9 

4.45 

6.90 

7.34 

274 

397 

451 April 

May 

June 

104.0 

24.9 

140.2 

4.9 

3.5 

54 

1.0 

0 

0 

3.47 

.80 

4.67 

206 

49 

278 July 

August 

September 

76.2 

0 175.3 

14 

0 

43 

.1 

0 

0 

2.46 

0 

5.84 

151 0 348 

Water year 1947-48 1,265.4 54 0 3.46 2,510 

Peak discharge base, 4j000 sec.-ft.).- No peak above base. a No gage-heightrecord, eater below intakes; discharge computed on basis of engineer's notes. 

e Discharge, wholly or in part, leakage through control. 
		

NUECES RIVER BASIN 217 

Leona River spring flow near Uvalde, Tex. 

Location.- Water-stage recorder, lat. 29°09', long. 99°44', at old road crossing on 

White's ranch 3i miles downstream from Cooks slough and 4.6 miles southeast of Uvalde, 

Uvalde County. Datum of gage Is 838.4 feet above mean sea level, datum of 1929. 

Records available.- January 1939 to September 1948. Occasional discharge measurements 

since 1925 in connection with seepage investigations. 

Extremes.- Maximum daily spring discharge during year, 15 second-feet Nov. 18 to Dec. 8, 

Dec. 15, 16; maximum gage height, 3.63 feet July 12; no flow Aug. 10 to Sept. 8. 

1939-48: Maximum daily spring discharge, 33 second-feet Feb. 15-18, 1942; maximum 

gage height, 13.63 feet Aug. 30, 1944, from floodmark; no flow Aug. 10 to Sept. 8, 1948. 

Remarks.- Records good. Discharge represents flow from several springs that enter river 

-- gF5VT station and below Uvalde. Surface runoff from precipitation is excluded. A few 

small diversions by pumping from river channel above station. 

Discharge, in second-feet, water year October1947 to September1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 13 13 15 14 12 10 6.8 4.6 2.3 e0.6 2 13 13 15 14 12 10 6.8 4.6 2.2 e.6 3 13 13 15 14 12 10 6.5 4.4 2.0 e.7 0 

0 

0 4 13 14 15 13 12 10 6.8 4.2 1.9 e.7 00 5 13 13 15 13 12 10 6.8 3.8 1.8 e.8 0 

6 13 13 15 13 11 9.8 6.8 3.6 1.6 e.8 7 13 13 15 12 11 9.8 6.5 3.6 1.4 .9 8 13 13 15 12 11 9.8 6.2 3.4 1.3 .9 9 13 13 14 12 11 9.8 5.9 3.4 1.1 .9 10 13 14 14 12 11 8.8 5.6 3.4 1.0 .9 

11 12 e14 14 12 11 8.3 5.9 e3.4 .9 .9 12 12 14 14 12 11 8.3 5.9 e3.4 .9 e1.0 13 12 14 14 12 11 8.3 5.4 3.4 .8 el.1 14 12 14 e14 12 11 8.3 5.4 3.4 .9 el.1 15 12 14 15 12 11 8.8 5.2 3.4 .8 el.2 

16 12 14 15 12 11 8.8 5.2 3.4 .6 1.3 17 12 e14 14 11 11 8.3 5.0 3.3 '.5 1.1 18 12 e15 14 12 11 8.3 5.0 3.1 .4 .9 19 12 15 14 12 11 7.9 5.0 3.'0 .3 .9 20 12 15 14 12 11 7.9 4.8 2.8 .2 .9 

21 12 15 14 11 11 7.9 4.4 2.7 .2 .9 22 12 15 14 11 11 7.9 e4.5 2.7 e.3 .8 23 12 15 13 11 11 7.5 e4.6 2.6 e.3 .7 24 12 15 13 11 11 7.1 e4.6 e2.6 e.4 .7 25 12 15 13 11 11 7.1 e4.7 e2.6 e.4 .7 

26 12 15 13 12 11 7.1 4.8 e2.6 .5 .6 27 12 15 13 12 c10 7.1 4.8 2.6 .5 .6 28 12 15 13 11 10 6.8 4.6 2.4 .5 .5 29 e12 15 13 12 , 10 7.1 4.6 2.4 .5 .5 30 13 15 13 12 7.1 4.6 2.4 .5 .4 

v -:-. 

--!..1.--: 0 

000000000000000000000 

0 

0 

0 

e.1 

e.I 

e.2 

e.2 

.3 

.4 

.4 

.4 

.4 

.4 

.4 

.4 

.4 

.4 

.4 

.5 

.5 

.4 

.2 

.2 

.2 

.1 31 13 13 12 - 7.1 2.4 .4 

Month Secondfoot-days Maximum Minimum Mean Runoff in 

acre-feet 

October 

November ; 384 

425 13 

15 12 

13 12.4 14.2 762 

843 December 435 15 13 14.0 863 

Calendar year 1947 4,522.1 18 7.1 12.4 8,970 

January 

February 

March 

374 

321 

261 

14 

12 

10 

11 

10 

6.8 

12.1 

11.1 

8.42 

742 

637 

518 

April 

May 

June 

163.7 

99.6 

27.0 

6.8 

4.6 

2.3 

4.4 

2.4 

.2 

5.46 

3.21 

.90 

325 

198 

54 

July 

August 

September 

25.0 

2.7 

7.0 

1.3 

.5 

.5 

.4 

0 

0 

.81 

.09 

.23 

50 

5.4 

14 

Water year 1947.48 2,525.0 15 0 6.90 5,010 

e Oage height not representative of average spring flow for day; discharge interpolated. 
218 NUECES RIVER BASIN 

Atascosa River at Whitsett, Tex. 

Location.- Water-stage recorder andartificialcontrol, lat. 28°37'20", long. 98°17'05", 

0.9 mile west of Whitsett, Live Oak County, and 4 miles downstream from La Parita 

Creek. Datum of gage is 159.0 feet above mean sea level, datum of 1929. From May 21 

to June 28, wire-weight gage at site 1,566 feet downstream at same datum. 

Drainage area.- 1,171 square miles. 

Records available.- September 1924 to May 1926, May 1932 to September 1948. 

Average discharge.- 17 years (1924-25, 1932-48), 149 second-feet. 

Extremes.- Maximum discharge during year, 2,650 second-feet Aug. 27 (gage height, 18.93 

feet); no flow at times. 

1924-26, 1932-48: Maximum discharge, 39,30Q second-feet July 7, 1942 (gage height, 

38.3 feet, from floodmark), from rating curve extended above 12,000 second-feet on 

basis of slope-area determination at gage height 38.0 feet; no flow at times. 

Remarks.- Records good except those for periods of doubtful gage-height record and those 

-for periodsof rapidly changing stage, which are fair. No diversion above station. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

0 .000 00000000 0000 1 00 

• ..... 

--• OM MOO N 

N .M N OMW.0.00000000 0 "

....NO ,W 01-,4 0,0

13 

8.8 

6.9 

5.4 

4.5 

3.6 

2.8 

2.4 

646 

348 

979 

796 

588 

102 

79 

96 

1.9 3.7 8.9 11 13 16 12 8.4 2.0 3.6 9.2 10 16 15 11 7.2 2.1 3.3 8.6 11 22 14 10 6.2 2.0 3.1 8.4 10 24 14 10 5.3 2.4 2.9 8.4 11 21 14 10 4.6 

2.3 2.8 8.4 11 18 14 10 3.7 1.8 2.9 8.6 11 16 14 9.8 2.7 1.7 2.6 8.6 11 15 17 9.5 2.1 d1.8 2.7 8.9 11 14 19 8.9 2.5

'"'94 2t=2.7,1 1 

42 3.0 

34 

19 

12 

8.8 

7.2 

5.2 

4.7 

4.5 

6.0 

11 

12 

11 

5.7 

4.2 

3.6 

3.0 

2.6 

2.4 

1.9 

1.8 

1.5 

8.4 2.6 25 

144 1,070 577 

206 

d1.8 3.0 9.8 11 14 15 

1.9 4.4 9.5 11 14 14 7.6 3.8 d1.9 3.7 10 11 13 13 6.9 14

d1.9 4.3 17 10 13 13 6.7 26 d1.9 4.8 17 9.8 13 13 6.7 13 

1.9 4.8 62 .9.8 13 13 6.4 7.9 71 

1.9 4.9 50 9.8 12 13 5.7 5.7 40 4.4 27 

21 

18 

15 

13 

11 

10 

9.1 

8.1 

7.2 

6.6 

6.0 

4.9 

4.7 

4.5 

2.0 150 27 9.8 12 13 5.5 2.5 685 18 10 12 13 5.5 3.0 f2.2 85 15 11 12 13 5.1 2.6 f35 26 13 12 13 12 5.3 2.3

16 16 13 12 14 12 5.8 2.3 7.2 17 12 13 46 12 4.8 1.8 4.8 11 12 13 56 11 6.2 1.3 4.0 9.8 11 12 40 12 5.3 2.0 3.6 9.2 11 12 24 11 10 1.3 

3.3 10 11 12 20 12 32 3.0 3.1 9.2 10 12 18 11 46 5.8 3.0 8.9 11 12 17 11 38 8.2 3.6 8.9 11 12 17 11 20 3.8 3.7 8.6 11 13 - 10 12 2.6 3.7 - 11 13 11 - 1.9 

Second- Runoff in Month Maximum Minimum Mean foot-days . acre-feet 

October 128.9 35 1.7 4.16 256 

November 1,112.1 685 2.6 37.1 2,210 

December 450.3 62 8.4 14.5 893 

- Calendar year1947 19,758.4 3,070 - 54.1 39,200 

January 348.2 13 9.8 11.2 691 

February 552 56 12 19.0 1,090 

March 406 19 10 13.1 805 

April 341.1 46 4.8 11.4 677 

May 162.0 26 1.3 5.23 321 

June 1,388.6 1,170 0 46.3 2,750 

July 5,965.1 1,070 4.5 192 11,830 

August 2,631.0 1,540 0 84.9 5,220 

September 212.5 34 1.5 7.08 421 

Water year1947-48 13,697.8 1,540 0 37.4 27,160 

Peak discharge (base, 1,500 sec.-ft.).- June 30 (6;30 p.m.) 1,530 sec.-ft.; Aug. 27 (11 p.m.) 2,650 sec.-ft. d Doubtful gage-height record; discharge computed on basis of estimated gage-height record. 

f Computed on basis of partly estimated gage-height record. 

Note.- Ciacharge May 21 to June 28 computed from graph based on once-daily readings of wire-weight gag7566 feet downstream from recorder. 
RIO GRANDE BASIN 219 

Rio Grande at Thirtymile Bridge, near Creede, Colo. 

Location.- Water-stage recorder, let. 37°44', long. 107°161 , in sec. 13, T. 40 N., R. 4 W., 50U-TTet upstream from Squaw Creek, three-quarters of a mile downstream from Rio Grande 

Reservoir, and 20 miles southwest of Creede. 

Drainage area.- 163 square miles. 

Records available.- June 1909 to September 1913 and October 1933 to September 1948 in 

reports of Geological Survey. June 1909 to September 1948 in reports of State engineer. 

Average discharge.- 35 years (1910-23, 1926-48), 231 second-feet. 

Extremes.- Maximum discharge during year, 2,670 second-feet June 11 (gage height, 5.01 

feet); minimum daily, 2.5 second-feet Oct. 17-20. 

1909-48: Maximum discharge, 7,500 second-feet June 28, 1927 (gage height, 7.03 

feet); minimum daily, 0.6 second-foot at times when reservoir was about empty and 

gates were closed. 

Remarks.- Records excellent above 200 second-feet and good below except those for Oct. 15 

to Apr. 24, which are poor. Flow regulated by Rio Grande Reservoir (capacity, 51,110 

acre-feet). 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

5 174 2 152 

000

00 0000000000 00000 0000000000 a av v vv vvvvaaavav 

4.0 4.0 4.0 4.0 21 2,040 1,160 629 89 22 1,750 872 616 76 23 1,920 996 635 65 

00000 00000 00000 99"9 9999 

4.0 4.0 4.0 4.0 3 143 4.0 4.0 4.0 4.0 4 143 4.0 4.0 4.0 4.0 24 2,150 1,000 704 61 5 143 

6 123 7 115 8 100 9 96 

10 96 

4.0 4.0 4.0 4.0 25 2,380 1,040 678 61 

4.0 4.0 4.0 4.0 

4.0 4.0 4.0 4.0 26 2,390 820 598 61 28 2,350 1,020 568 61 4.0 4.0 4.0 4.0 29 1,860 1,180 568 61 4.0 4.0 4.0 4.0 29 1,820 896 562 55 4.0 4.0 4.0 4.0 52 2.280 1,010 544 55

96 527 2,500 987 487 54 568 2,430 1,010 419 54 521 2,220 1,120 368 54 

11 4.0 4.0 4.0 4.0 12 106 4.0 4.0 4.0 4.0 13 137 4.0 4.0 4.0 4.0 14 71 4.0 4.0 1,020 364 54 15 2.8 

16 2.6 17 2.5 18 2.5 19 2.5 20 2.5 

4.0 4.0 538 1,760 4.0 4.0 4.0 4.0 183 339 960 373 54

4.0 4.0 4.0 4.0 404 54 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 

4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 

32 610 1,070 34 1,610 1,030 443 54 43 1,610 912 438 58 842 1,290 936 476 68 2,190 865 1.073 527 68

21 2.6 2,330 1,010 858 492 68 22 2.7 2,330 960 722 424 68 23 2.8 2,310 685 685 395 68 24 2.9 2,140 604 798 360 62 25 3.0 4.0 4.0 4.0 4.0 1,910 562 835 335 43

26 3.0 4.0 4.0 4.0 4.0 1,670 660 850 147 44 27 3.4 4.0 4.0 4.0 4.0 1,180 952 678 88 61 4.0 4.0 4.0 4.0 978 647 616 89 73 4.0 4.0 4.0 4.0 969 850 672 96 92 4.0 4.0 4.0 1,380 1,100 791 97 104 

28 3.6

29 3.8 30 3.8 31 3.8 4.0 4.0 - 4.0 1,910 716 92 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet

October..., 

November 1,745.8 120.0 174 4.0 2.5 4.0 56.3 

4.00 'IL 

December 124.0 4.0 4.0 4.00 246 

_ Calendar year 1947 90,112.3 1,370 1.4 247 178,700 

January 

February 

March 

124.0 

116.0 

124.0 

4.0 

4.0 

4.0 

4.0 

4.0 

4.0 

4.00 

4.00 

4.00 

246 

230 

246 April 

May 

June 

July 

August 

September 

700.0 24,864 

44,204 

28,330 

13,016 

1,900 

237 2,330 

2,500 

1,180 704 

104 

4.0 

21 

339 

616 

88 

43 

23.3 

802 1,473 914 

420 

63.3 

1,390 

49,320 

87,680 

56,190 

25,820 

3,770 

Water year1947-48 115,367.8 2,500 2.5 315 228,800 

Note.- No gage-height record Nov. 2 to Apr. 24 (stage-discharge relation affected by ice during paFT-Er period); discharge computed on basis of leakage through closed reservoirs gates. 
		

220 RIO GRANDE BASIN 

Rio Grande at Wason, below Creede, Colo. 

Location.- Water-stage recorder, lat. 37°49', long. 106°53', in NE11, sec. 8, T. 41 N., R. 

1 E., at Wason, if miles downstream from Willow Creek and 3 miles southeast of Creede. 

Drainage area.- 705 square miles. 

Records available.- April 1907 to September 1913 and October 1933 to September 1948 in 

reports of ueological Survey. April 1907 to September 1948 in reports of State engineer 

Average discharge.- 41 years, 635 second-feet. 

Extremes.- Maximum discharge during year, 6,500 second-feet June 4 (gage height, 5.68 

feet); minimum daily, 80 second-feet Jan. 28. 

1907-48: Maximum discharge, 9,750 second-feet June 28, 1927 (gage height, 7.65 

feet); minimum not determined. 

Remarks.- Records excellent except those for period of ice effect, which are fair. Divers ons above station for irrigation. Flow regulated by three reservoirs (total 

capacity, 122,900 acre-feet). 

Ratinlgt4ft:ig nynie,t1,94aLllis ,,pei rfid lgeetcfect 

hteli := n2 

Oct. 1 to May 18 May 19 to Sept. 30 

0.4 71 1.4 415 0.9 232 1.8 690 3.6 2,550 

.6 114 1.8 667 1.2 351 2.2 1,000 4.6 4,33C 

.8 171 2.6 1,360 1.5 501 3.0 1,760 5.7 6,540 1.1 280 3.0 1,760 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 432 229 153 120 105 114 133 868 4,240 2,020 1,260 448 

2 415 226 141 98 105 128 147 842 4,060 1,980 1,200 379 

3 380 218 141 100 107 130 168 801 5,600 1,770 1,180 360 4 365 194 138 105 105 117 178 842 5,780 1,950 1,240 347 

5 356 197 125 •105 100 130 188 930 5,620 1,860 1,310 338 

6 352 178 135 108 98 144 194 1,000 5,240 1,670 1,240 334 7 324 150 140 110 96 150 197 1,150 5,120 1,650 1,310 321 8 312 194 125 115 93 153 215 1,130 4,560 1,910 1,340 292 

9 292 178 130 120 88 150 268 974 4,250 1,620 1,310 284 10 288 181 120 125 94 122 312 801 4,790 1,540 1,200 288 

11 312 •153 115 122 96 150 360 982 5,340 1,580 1,070 304 12 375 178 125 110 88 138 320 1,160 5,220 1,480 1,030 318 13 405 181 135 100 90 144 284 1,120 4,860 1,620 966 300 14 722 165 145 105 93 105 320 1,380 4,250 1,550 1,010 308 15 459 138 155 110 94 122 448 1,520 2,860 1,480 966 308 

16 375 174 150 110 95 133 605 1,380 2,080 1,520 974 300 17 365 184 .149 100 .96 107 761 1,580 3,270 1,590 992 288 18 356 171 150 105 105 107 912 1,710 3,360 1,530 966 243 19 347 184 150 102 115 119 817 3,910 2,930 1,570 974 272 20 342 174 145 100 112 102 834 5,200 2,080 1,770 1,040 284 

21 352 136 150 105 110 107 860 5,660 1,980 1,620 1,100 288 22 352 162 145 105 108 109 801 5,800 2,130 1,430 1,040 284 23 324 174 145 100 105 •114 706 5,480 1,620 1,340 1,010 284 24 308 159 150 105 110 119 572 4,960 1,420 1,410 915 239 25 280 201 152 98 120 117 495 4,180 1,410 1,460 798 232 

26 264 201 155 92 128 125 646 3,600 1,420 1,480 690 268 27 272 171 156 86 128 119 585 2,900 1,790 1,330 501 268 28 256 168 158 80 117 122 566 2,600 1,590 1,330 423 300 29 248 168 152 90 114 133 690 2,660 1,500 1,420 453 296 30 264 168 142 98 138 777 3,260 2,000 1,480 438 284 31 229 130 105 - 141 - 4,060 1,440 469 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 10,723 722 229 346 21,270 November 5,355 229 136 178 10,620 December 4,402 158 115 142 8,730 

Calendar year 1947 224,030 2,83C 58 614 444,300 _ -

January 3,234 125 80 104 6,410 February 3,015 128 88 104 5,980 March 3,909 153 102 126 7,750 

April 14,359 912 133 479 28,480 May 74,440 5,800 801 2,401 147,600 June 102,370 5,780 1,410 3,412 203,000 

July 49,400 2,020 1,330 1.594 97,980 August 30,415 1,340 423 981 60,330 September 9,049 448 232 302 17,950 

Water year 1947-48 310,671 5,800 80 849 616,100 

Peak discharge (base 2,300 sec.-ft.).- May 22 (3:15 a.m.) 6,410 sec.-ft.; June 4 (12:15 a.m.) 6,500 sec.-ft.; June 12 (3:30 a.m.) 5,560 sec.-ft.; June 18 (5 a.m.) 3,650 sec.-ft. •Winter discharge measurement made on this day. Note.- Stage-discharge relation affected by ice Dec. 6 to Feb. 25 (no gage-height record Jan. 28 toriUt 17; discharge computed on basis of 1 discharge measurement and weather records). 
.

RIO GRANDE BASIN 221 

Rio Grande near Del Norte, Colo. 

Location.- Water-stage recorder, lat. 37°41,, long. 106°28, , in NWi sec. 29, T. 40 N., H. 5 h., 5 miles upstream from Pinos Creek and 6 miles west of Del Norte. Datum of 

gage is 7,982.21 feet above mean sea level, datum of 1929. 

Drainage area.- 1,320 square miles. 

Records available.- July 1889 to November 1906 (at site 4 miles downstream), April 1908 

to September 1913 and October 1933 to September 1948 in reports of Geological Survey. 

July 1889 to September 1906 and April 1908 to September 1948 in reports of State engineer. May to September 1907 (at site 4 miles downstream), unpublished, in files of 

State engineer. 

Average discharge.- 59 years (1889-1948), 959 second-feet. 

Extremes.- Maximum discharge during year, 8,840 second-feet May 22 (gage height, 5.81 

reet); minimum daily, 135 second-feet Jan. 28. 

1889-1948: Maximam discharge, 18,000 second-feet Oct. 5, 1911 (gage height, 6.80 

feet), from rating curve extended above 6,000 second-feet; minimum daily, 88 secondfeet Dec. 20, 1945. 

Remarks.- Records excellent except those for May 20 to June 15, which are good, and those 

.or period of ice effect or no gage-height record, which are fair. Small diversions 

above station for Irrigation. Plow regulated by three main reservoirs (total capacity, 

122,900 acre-feet) and several smaller ones. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 618 410 270 225 190 218 285 2,050 5.990 2,720 

2 610 410 *260 190 192 214 332 1,890 5,990 2,770 

3 

4 575 

540 410 368 255 

230 193 200 *198 195 210 200 434 

533 1,810 

1,840 7,490 2,450 7,850 2,550 5 533 362 210 *202 190 210 540 2,160 7,510 2,430 

6 519 350 235 202 185 *204 554 2,340 7,180 2,340 7 498 240 255 206 182 200 554 2,640 7,250 2,190 8 484 302 220 220 180 220 589 2,700 6,970 2,390 9 458 326 230 230 172 210 706 2,270 6,670 2,160 10 440 314 218 240 180 200 916 1,770 7,100 1,950 

11 464 285 200 235 190 200 971 1,640 7,460 1,980 12 589 296 210 200 175 205 842 1,810 7,410 1,900 13 603 *326 225 180 a180 a220 682 1,730 7,000 2,080 14 1,000 308 245 190 a190 a250 754 2,290 6,380 2,000 15 872 250 265 195 a194 a230 993 3,000 5,440 1,940 

0000 0 0000 0

2285',2 F.2 FAM 

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

547 

491 

452 

434 

428 

422 

404 

380 

362 

362 

374 

386 

374 

368 

368 

362 

356 

338 

314 

350 

344 

16 690 280 260 200 a195 a230 1 320 3,23C 3,820 1,890 17 658 320 *255 178 *198 a240 1 550 3,640 4,540 1,970 18 642 302 255 190 215 a240 1 890 3,900 4,760 1,900 19 634 302 260 185 230 a235 1 800 6,020 4,490 2,020 20 610 280 250 *180 228 a225 1,860 7,620 3,680 2,180 

21 626 260 255 190 222 a200 1 940 8,290 3,290 2,000 22 

23 642 250 252 190 '220 a190 1 810 8,290 3,380 1,730 338 

596 270 250 180 218 .a.192 1 640 7,800 2,720 1,590 332 24 575 270 252 185 215 210 1,270 7,250 2,300 1,640 308 

25 512 290 255 170 225 235 1,040 6,470 2,240 1,710 285 

26 484 290 260 160 238 230 1 110 5,700 2,220 1,710 27 

28 484 

470 296 

250 265 270 145 

135 248 

235 240 240 1 100 

1 170 5,140 4,710 2,610 1,590 2,590 1,460 29 464 255 265 155 220 280 1 570 4,800 2,080 1,590 30 464 265 250 170 308 1,840 5,260 2,590 1,590 31 446 240 185- 314 - 5,860 - 1,600 

326 

338 

374 

374 

380 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 17,800 1,000 440 574 35,310 

November 9,137 410 240 305 18,120 

December 7,622 270 200 246 15,120 

Calendar year1947 322,550 3,970 120 884 639,800 

January 5,906 240 1351 191 11,710 February 5,900 248 172 203 11,700 March 7,000 314 190 226 13,880 April 32,595 1,940 285 1,086 64,650 May 125,920 8,290 1,640 4,062 249,800 June 151,000 7,850 2,080 5,033 299,500 July 62,020 2,770 1,460 2,001 123,000 August 34,633 1,520 533 1,117 68,690 

September 11,271 547 285 376 22,360 

Water year 1947-48 470,804 8,290 135 1,286 933,800 

Peak discharge (base, 3,200 sec.-ft.).- May 22 (4:30 a.m.) 8,840 sec.-ft.; June 4 (3 a m.) 7,850 sec.-ft. •Winter discharge measurement made on this day. a No gage-height record (stage-discharge relation affected by ice during part of periods); discharge computed on basis of 1 discharge measurement, weather records, and records for San Juan 

River at Pagosa Springs. Stage-discharge relation affected by ice Nov. 25, 29, Dec. 6 to Feb. 12, Feb. 17 to Mar. 12. 
222 RIO GRANDE BASIN 

Rio Grande near Monte Vista, Colo. 

Location.- Water-stage recorder, lat. 37'37', long. 106'09', at west line of sec. 19, T. 

39 N., R. 8 E., 2 miles north of Monte Vista. Datum of gage is 7,654.54 feet above 

mean sea level, datum of 1929. 

Drainage area.- 1,590 square miles. 

Records available.- October 1933 to September 1948 in reports of Geological Survey. May 

192b to September 1948 in reports of State engineer (nc winter records In earlier 

years). 

Average discharge.- 15 years (1933-48), 362 second-feet. 

Extremes.- Maximum discharge during year, 7,100 second-feet May 22 (gage height, 7.37 feet); 

minimum daily, 23 second-feet Oct. 8. 

1926-48: Maximum discharge, 18,500 second-feet June 30, 1927 (gage height, 7.85 

feet); minimum daily, 4 second-feet Apr. 18, 1926. 

Remarks.- Records excellent except those below 100 second-feet and those for May 23-31, 

which are good, and those for period of ice effect, which are fair. Diversions above 

station for irrigation. Flow regulated by three main reservoirs (total capacity, 

122,900 acre-feet) and several smaller ones. 

Revisions.- W 928: Drainage area. 

Rating tables, water year 1947-48, except period of Ice effect (gage height, in feet, and discharge, In second-feet) (Shirting-control method used May 26 to June 2, Sept. 18-30) 

Oct. 1 to May 29 May 30 to Sept. 30 

0.1 15 1.2 258 4.5 2,500 0.6 57 2.1 429 5.4 3,210 

.7 28 1.7 436 5.8 4,420 .9 108 2.6 655 6.3 4,430 

.3 43 2.5 795 7.4 7,150 1.2 169 3.2 1,040 7.1 5,746 

.5 78 3.2 1,170 1.6 269 4.3 1,980 

.8 146 3.7 1,600 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 151 78 274 240 198 250 394 1,150 4,740 910 135 94 2 144 280 *293 220 195 240 406 1,060 4,640 984 154 8! 3 120 300 280 205 .196 225 440 895 5,010 785 145 75 4 95 287 274 215 200 220 444 719 5,740 785 147 101 5 74 261 237 220 200 220 409 805 5,640 711 183 99 

6 60 274 234 215 198 225 464 885 5,400 634 147 94 7 32 252 240 225 194 220 506 1,090 5,130 500 110 87 8 23 214 260 240 190 230 368 1,24U 4,820 512 147 90 9 38 304 250 250 180 235 485 1,030 4,380 401 110 92 10 34 284 240 255 195 220 612 576 4,310 314 97 94 

11 30 293 230 250 200 218 747 324 4,500 398 101 83 12 53 314 240 *220 200 230 761 448 4,720 408 92 94 13 115 338 255 205 190 245 580 440 4,600 535 76 88 14 246 342 265 200 200 260 566 733 4,240 655 60 80 15 549 314 275 210 205 265 676 1,120 3,520 530. 70 82 

16 264 284 280 215 210 260 960 1,530 2,050 418 60 83 17 225 342 270 205 215 260 1,140 1,830 2,050 448 70 87 18 206 328 275 200 230 268 1,530 2,020 2,360 422 80 83 19 180 310 270 205 240 249 1,540 3,220 2,020 448 112 75 20 156 293 265 195 250 258 1,500 5,460 1,730 582 94 78 

21 134 271 270 205 240 277 1,600 6,320 1,120 587 108 7, 22 

23 

24 

149 

141 

113 

261 

277 

274 

275 

260 

265 

205 

195 

190 

240 

235 

230 

274 

0249 

264 

1,440 

1,280 930 

6,770 

6,790 

6,470 

1,140 863 

644 

381 

284 

256 

114 

110 

88 

70 

68 

62 25 93 280 270 195 245 297 621 6,200 618 310 78 59 

26 

27 

28 

29 

62 

38 

43 

31 

314 

307 

307 

274 

270 

275 

275 

280 

180 

165 

150 

145 

255 

265 

270 

265 

317 

304 

335 

360 

566 

562 

428 

639 

5,580 

4,850 

4,150 

3,860 

508 

650 

923 

876 

329 

286 

167 

139 

90 

85 

67 

63 

60 

82 

87 

87 30 

31 64 

46 264 270 

255 160 

180 - 428 

417 955 

- 4,020 

4,480 729 

- 154 158 90 92 73 -

Month Secondfoot-days Maximum Minimum Mean Runoff in 

acre-feet 

October 

November 

December 

3,709 

8,521 

8,172 

549 

342 

293 

23 

78 

230 

120 

284 

264 

7,360 

16,900 

16,210 

Calendar year 1947 104,996.0 1,280 5.0 288 208,200 --.- January 

February 

March 

April 

May 

June 

6,360 

6,331 

8,320 

23,549 

86,065 

89,671 

255 

270 

428 1,600 

6,790 

5,740 

145 

180 

218 

368 

324 

508 

205 

218 

269 

785 2,776 

2,989 

12,610 

12,560 

16,500 

46,710 

170,700 

177,900 July 

August 

September 

14,431 

3,175 

2,466 

984 

183 

101 

139 

60 

59 

466 

102 

82.2 

28,620 

6,300 

4,890 

Water year 1947-48 260,770 6,790 23 712 517,300 

Peak discharge (base, 3,000 sec.-ft.).- May 22 (6:45 p.m.) 7,100 sec.-ft.; June 4 (7:15 p.m.) 5,960 sec.-ft. •Winter discharge measurement made on this day. Note.- Stage.discharge relation affected by ice Dec. 8 to Mar. 17 (no gage-height eecord Feb. 11- 14T-
		

RIO GRANDE BASIN 223 

Rio Grande at Alamosa, Colo. 

Location.- Water-stage recorder, lat. 37°29, , long. 105°53,, in SEi sec. 4, T. 37 N., R. 

10 E., a quarter of a mile northwest of Alamosa and 7 miles upstream from Alamosa 

Creek. Datum of gage is 7,532.66 feet above mean sea level', datum of° 1929. 

Drainage area.- 1,710 square miles. 

Records available.- May 1912 to September 1913 and October 1933 to September 1948 in 

reports of Geological Survey. May 1912 to September 1948 in reports of State engineer. 

Average discharge.- 36 years, 319 second-feet. 

Extremes.- Maximum discharge during year, 5,160 second-feet June 5; maximum gage height, 

9.97 feet May 23; minimum daily discharge, 15 second-feet Oct. 9, 11, Sept. 8-18. 

1912-48: Maximum discharge, 14,000 second-feet July 1, 1927; maximum gage height, 

that of May 23, 1948; minimum daily discharge, 2 second-feet Oct. 24-29, 1933. 

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are fair. Many diversions above station for irrigation. During irrigation 

season, low-water flow is water returned from irrigated lands above station. 

Revisions.- W 928: Drainage area. 

Discharge, In second-feet, water year October 194'1 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 

2 

3 

4 

5 

25 

24 

23 

22 

21 

29 

31 

117 

176 

168 

321 

•338 

351 

321 

280 

240 

220 

220 

225 

230 

270 

260 

245 

235 

245 

488 

480 

496 

516 

516 

542 

731 

673 

524 

384 

3,300 

3,580 

3,600 

3,980 

4,810 

290 

386 

457 

333 

333 

49 

53 

55 

49 

49 

16 

16 

16 

16 

16 

6 

7 

8 

9 

10 

21 

19 

16 

14 

16 

141 

129 

184 

238 

253 

285 

264 

251 

253 

243 

235 

240 

250 

260 

270 

250 

265 

280 

275 

270 

493 

553 

545 

"466 

553 

427 4,960 418 4,690 564 4,320 639 3,940 444 3,520 272 

227 

143 

131 

92 

63 

78 

64 

49 

37 

16 

16 

15 

15 

15 

11 

12 

13 

14 

15 

15 

16 

17 

18 

39 

253 

280 

316 

332 

325 

235 

240 

255 

265 

275 

260 

230 

225 

225 

230 

280 

290 

320 

340 

330 

670 

776 

756 

539 

483 

205 

106 

71 

52 

94 

3,400 

3,570 

3,710 

3,630 

3,320 

67 

57 

51 

53 

84 

48 

37 

33 

32 

30 

15 

15 

15 

15 

15 

16 

17 

18 

19 

20 

170 

108 

78 

63 

55 

310 

318 

343 

343 

336 

280 

270 

275 

270 

265 

220 

210 

210 

205 

•200 

325 

330 

355 

390 

385 

548 

804 

988 1.210 

1,240 

409 

.679 

868 1,050 

1,420 

2,800 

1,790 

1,680 

1,720 

1,480 

51 

43 

38 

34 

31 

29 

27 

26 

25 

21 

15 

15 

15 

16 

16 

21 48 304 265 210 22 43 262 275 212 23 33 276 265 210 24 24 289 260 205 25 24 304 270 200 

26 22 318 275 195 27 24 349 280 175 28 27 349 285 170 29 26 340 290 175 30 29 310 275 180 

.(7., Fg1,7; gcHR rg

b390 1,260 2,570 1,110 56 20 16 b413 1,320 3,890 808 74 20 16 •b404 1,200 4,670 788 45 20 16 b404 1,020 4,760 562 32 20 17 b406 651 4,670 386 28 20 18 

b411 441 4,550 314 31 22 18 429 409 4,000 246 31 22 18 425 359 3,490 287 30 19 18 451 268 3,080 395 27 18 18 483 305 2,880 239 28 18 19 31 26 - 260 200 524 - 2,950 39 18 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 1,107 170 15 35.7 2,200 November 7,723 349 29 257 15,320 December 8,537 351 235 275 16,930 _ - Calendar year 1947 43,950 480 10 120 87,180 ______ -- January 6,737 270 170 217 13,360 February 6,716 285 190 232 13,320 March 10,680 524 235 345 21,180 April 20,353 1,320 268 678 40,370 May 51,810 4,760 52 1,671 102,800 June 72,935 4,960 239 2,431 144,700 July 3,594 457 27 116 7,130 August 1,072 78 18 34.6 2,130 September 483 19 15 16.1 958 

Water year1947-48 191,747 4,960 15 524 380,400 

Peak discharge (base, 2,500 sec.-ft.).- May 23 (8 p.m. 4,820 sec.-ft.; June 5 (6:30 p.m.) 5,160 sec.-ft. 

' Winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice. 

Note.- No gage-height record Dec. 5, 6, Dec. 11 to Mar. 20 (stage-discharge relation affected by ice-aUFing part of periods); discharge computed on basis of 2 aischarge measurements, weather records, and records for station near Monte Vista. 
	

224 RIO GRANDE BASIN 

Rio Grande above mouth of Trinchera Creek, near La Sauses, Colo. 

Location.- Water-stage recorder, lat. 39°19', long. 105°45', in sec. 35, T. 36 N., R. 11 

ii., a quarter of a mile upstream from Trinchera Creek and 5 miles north of La Sauses. 

Drainage area.- 5,740 square miles (includes 2,940 square miles in closed basin). 

Records available.- May 1936 to September 1948. 

Average discharge.- 12 years, 333 second-feet. 

Extremes.- Maximum discharge during year, 5,070 second-feet May 26, June 6 (gage height, 

9.38 feet); minimum daily, 30 second-feet Sept. 22-25. 

1936-48: Maximum discharge, that of May 26, June 6, 1948* minimum daily, 0.4 second-foot July 4, 1940. 

Remarks.- Records excellent except those for periods of ice effect or no gage-height 

record, which are fair. Storage and several diversions above station for irrigation. 

During irrigation season, low flow is water returned from irrigated lands above 

station. 

Ratinfg=71:ighTterinyne.t19:n;1411s:=,pel=oncf1-fe:tTffect (Shifting-control method used Aug. 18-29) 

Oct. 1 to Dec. 31 Jan. 1 to Sept. 30 

1.5 77 0.8 29 2.4 280 7. 2,790 1.8 118 .9 36 3.0 439 f.6 4,030 2.3 212 1.2 64 3.8 700 9.4 5,100 2.8 332 1.5 102 4.9 1,160 3.1 422 1.8 153 6.1 1,800 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. Mal June July Aug. Sept. 

MH 

HkE EHE 4MNMM

1 ,

685 776 3,180 491 60 42 670 980 3,480 566 57 40 650 1,090 3,970 606 55 39 670 1,010 4,030 620 51 38 700 848 4,230 553 51 36 

99 116 295 265 190 2 102 114 300 •248 •195 3 108 123 290 240 210 4 114 208 280 255 208 5 112 255 270 270 205 

6 106 241 275 275 205 7 99 291 290 280 202 8 94 327 285 285 200 

670 752 4,890 553 51 35 .675 748 5,030 488 51 34 712 768 4,950 402 63 33 9 87 346 280 290 195 644 988 4,720 347 72 34 10 82 •340 260 300 210 623 900 4,420 231 70 33

11 740 708 3,980 170 59 32 828 570 3,750 140 53 32 896 503 3,810 122 53 32 832 433 3,890 90 51 32 

86 338 255 310 225 12 81 352 255 275 220 13 81 390 265 265 220 14 93 400 270 270 225 15 98 403 280 275 235 696 390 3,830 81 48 32 

16 149 396 •275 280 •240 704 475 3,550 71 52 31 17 241 381 270 265 260 18 202 381 270 270 270 19 180 387 280 •250 275 20 162 378 285 230 285 

21 149 354 290 240 280 22 146 330 290 245 280 23 137 320 295 238 275 24 128 320 300 240 270 25 121 325 310 230 265 

26 125 335 320 210 280 27 128 318 325 190 295 28 132 300 320 180 290 29 128 295 310 182 280 30 125 295 300 185 31 123 280 187 -

808 808 2,970 63 54 32 988 .992 1,910 63 45 33 1,150 1,180 1,700 65 43 32 1,320 1,400 1,640 68 43 32 

1,420 1,790 1,460 85 42 32 1,500 2,240 1,200 79 50 30 1,550 2,920 1,060 72 47 30 1,470 4,550 976 69 40 30 1,280 5,020 792 59 37 30 

1,010 5,060 664 52 36 34 892 4,930 580 48 36 35 848 4,640 519 54 42 36 736 4,130 637 52 65 35 675 3,530 573 79 48 38 - 3,140 - 96 43 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 3,818 November 9,359 December 8,870 

Calendar year 1947 68,611 

January 7,725 February 6,990 March 13,554 April 27,042 May 58,169 June 82,391 July 6,535 August 1,568 tI 

• 

""1 '1 2g22g22 

I I 

81 123 7,570 114 312 18,560 255 286 17,590 

33 188 136,100 

180 249 15,320 190 241 13,860 255 437 26,880 623 901 53,640 390 1,876 115,400 519 2,746 163,400 48 211 12,960 36 50.6 3,110 September 1,014 30 33.8 2,010 

Water year 1947-48 227,035 

Peak discharge (base, 3,000 sec.-ft.).- May 26 (8 p.m sec.-ft. •Winter discharge measurement made on this day. 

5,060 30 620 450,300 

5,070 sec.-ft.; June 6 (6:15 p.m.) 5,070 

Note.- Stage-discharge relation affected by ice Nov. 7 to Dec. 15. No gage-height record Dec. 16 to-TFF: 6 (stage-discharge relation affected by ice during most of period); discharge computed on basis of 7 discharge measurements and weather records. 
;

RIO GRANDE BASIN 225 

Rio Grande near Lobatos, Colo. 

Location.- Water-stage recorder, lat. 37°05,, long. 105°45, , in sec. 22, T. 33 N., R. 11 

E., b miles north of Colorado-New Mexico State line, 7 miles downstream from Culebra 

Creek, and 10 miles east of Lobatos. Datum of gage is 7,426.79 feet above mean sea 

level, datum of 1929. 

Drainage area.- 7,700 square miles (includes 2,940 square miles in closed basin). 

Records available.- June 1899 to September 1913 and October 1933 to September 1948 in 

reports or Geological Survey. June 1899 to September 1948 in reports of State engineer. 

Average discharge.- 49 years (1899-1948), 727 second-feet. 

Extremes.- Maximum discharge during year, 8,600 second-feet June 7 (gage height, 7.46 

feet); minimum daily, 33 second-feet Sept. 8, 9, 12-17. 

1899-1948: Maximum daily discharge, 13,100 second-feet June 8, 1905, from rating 

curve extended above 8,000 second-feet; minimum daily, 5.0 second-feet Aug. 4, 1940. 

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are fair. Diversions above station for irrigation. Flow regulated by many 

reservoirs on headwaters. Records of chemical analyses for the water year 1948 are 

given in Water-Supply Paper 1133. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

,,im.,-; u ci ;61 :,;fg m-.4.:; Hm ng:gi 

ma.

1 138 160 320 240 355 878 1,930 5,000 578 77 44

2 131 155 .310 .243 350 824 2,280 5,540 578 62 40

3 135 155 295 250 340 798 2.300 6.010 623 60 40

4 142 197 305 248 335 815 2,190 6,440 649 57 40

315 243 .350 824 1,860 6,800 584 62 40 

315 243 360 798 1,830 7,740 565 62 40 

320 240 390 783 1,950 8.510 505 69 35 

330 238 415 815 2,120 8,170 470 72 33 

335 230 410 806 2,190 7,360 363 85 33 

5 142 305 

6 131 335 7 127 234

8 127 257

9 119 317 10 112 424 350 265 400 760 1,880 6,770 303 85 35

11 108 404 365 290 410 860 1,400 6,080 216 82 35

12 108 .404 340 264 430 1,080 1,100 5,690 181 69 33

13 98 430 295 272 480 1,150 925 5,760 148 69 33

14 131 465 300 290 525 1,090 791 5,800 127 67 33

15 138 440 315 295 470 934 906 5,450 102 60 33

16 151 425 325 .304 490 934 1,280 4,900 90 53 33

17 257 444 310 320 520 1,170 1,990 4,200 80 57 33

18 281 465 330 335 620 1,560 2,440 3,040 72 57 35

19 251 472 .310 350 630 2,020 2,820 2,300 74 46 4C

20 224 440 280 365 610 2,370 3,240 2,380 80 46 40

21 218 400 300 360 600 2,540 3,770 2,260 82 49 35

22 208 350 310 355 .617 2,840 4,380 1,880 99 51 40 

23 183 340 300 355 640 3,080 4,930 1,580 90 57 38 

24 174 340 310 350 817 2,830 6,660 1,410 87 55 35

25 164 345 300 ' 340 925 2,300 8,000 1,070 82 49 38

26 169 355 275 360 869 1,740 8,040 815 69 44 40

27 174 340 250 385 815 1,430 7,510 686 62 40 49

28 174 325 220 380 798 1,300 6,620 597 57 38 51

29 178 310 225 365 791 1,340 5,830 623 60 44 53

30 164 310 235 833 1,620 5,170 700 55 62 53

31 164 240 - 851 4,800 99 51

Month Secondfoot-days Maximum Minimum Mean Runoff in 

acre-feet 

October 

November 

December 

5,021 

10,343 

9,680 

281 

472 

350 

98 

155 

270 

162 

345 

312 

9,960 

20,520 

19,200 

Calendar year 1947 116,082 1,910 31 - 318 230,300 

January 

February 

March 

April 

May 

June 

July 

August 

September 

9,3.30 

8,775 

17,446 

42,289 

103,132 

125,561 7,230 

1,837 

1,160 

365 

385 

925 3,080 

8,040 

8,510 649 

85 

53 

220 

230 

335 

760 

791 

597 

55 

38 

33 

301 

303 

563 1,410 

3,327 

4,185 233 

59.3 

38.7 

18,510 

17,400 

34,600 

83,880 

204,600 

249,000 

14,340 

3,640 

2,300 

Water year 1947-48 341,804 8,510 33 934 678,000 

Peak discharge (base, 5,000 sec.-ft.).- May 25 (1:15 p.m.) 8,190 sec.-ft.; June 7 (7 a.m.) 8,600 sec.-ft. •Winter discharge measurement made on this day. Note.- Stage-discharge relation affected by ice Nov. 15. 16, Nov. 20 to Mar. 24 (no gage-height reFF.Fa-Dec. 14, 15, Jan. 1 to Feb. 29; discharge computed on basis of 4 discharge measurements, weather records, and records for station near Taos, N. Mex.). 
226 RIO GRANDE BASIN 

Rio Grande near Cerro, N. Mex. 

Location.- Water-stage recorder, let. 36°44,05", long. 105041.05", in Ni sec. 20, T. 29 

N., H. 12 E., 4 miles southwest of Cerro, 5i miles northwest of Questa, N. Mex., and 

7 miles upstream from Red River. 

Records available.- May to September 1948. 

Extremes.- Maximum discharge during period, 9,140 second-feet June 7 (gage height, 15.40 

feet); minimum daily, 88 second-feet Sept. 14, 16. 

Remarks.- Records excellent above 500 second-feet; good below except those for periods 

--75T-Fu gage-height record, which are fair. Diversions above station for irrigation. 

Rating table, May 1 to Sept. 30, 1948 (gage height, In feet, and discharge, in second-feet) 

1.5 80 3.8 349 9.0 2,400 1.7 94 4.7 520 10.5 3,530 2.0 117 5.6 765 12.3 5,250 2.5 166 6.6 1,130 14.5 7,890 3.1 241 7.7 1,640 15.5 9,290 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 a2,000 5,250 720 130 103 2 a2,300 5,800 8650 130 98 3 e2,500 6,260 675 114 94 4 a2,400 6,740 690 111 93 5 2,150 7,110 690 111 91 

6 2,150 8,020 a640 109 90 7 2,150 9,000 595 107 90 8 

9 2,210 

2,400 8,860 

8,020 520 

460 112 

112 9,, 89 10 2,210 7,370 a390 122 90 

11 1,790 6,620 a330 126 9: 12 1,340 6,020 a280 122 9: 13 1,090 6,020 8230 117 90 14 900 6,140 a190 115 88 15 865 5,910 157 112 89 

16 1,090 5,360 a140 107 88 17 1,640 4,740 8120 102 89 18 2,270 3,620 a110 100 9c 19 2,680 2,610 alUO 105 90 20 3,130 2,610 e110 101 97 

21 3,710 2,540 122 97 93 22 4,440 2,210 126 100 92 23 4,940 1,850 135 100 91 24 6,380 1,690 130 104 91 25 8,300 1,390 130 106 90 

26 8,860 1,070 126 102 91 27 8,580 848 122 97 93 28 7,500 720 117 95 94 29 6,620 645 126 94 98 30 5,800 780 122 92 101 31 5,360 - 107 110 

Month Secondfoot-days Maximum Minimum Mean Runoff in 

acre-feet 

October 

November 

December -

Calendar year . - _ _ - January - - - - February 

March - - -

- - -

- April 

May 

June 

July 

August 

September 

- 109,755 

135,823 9,160 

3,362 

2,763 

- 8,860 

9,000 720 

130 

103 

865 

645 

100 

92 

88 

- 3,540 

4,527 295 

108 

92.1 

-

217,,00 269,400 

18,170 

6,670 

5,480 

The period - - - - 517,400 

a No gage-height record; discharge computed on basis of records for stations near Lobotoa, Colo., and near Taos, N. Mex. e Gage reading not representative of mean for day; discharge computed as explained in footnote a. 
- - 

RIO GRANDE BASIN 227 

Rio Grande below Taos Junction Bridge, near Taos, N. Mex. 

Location.- Water-stage recorder, lat. 36°19'00", long. 105°45'30", in Ni sec. 15, T. 24 N., 

H. 11 E., 2 miles downstream from Taos Creek and bridge on Taos-Taos Junction highway 

and 12 miles southwest of Taos. 

Drainage area.- 9,730 square miles (includes 2,940 square miles in closed basin in northern part of San Luis Valley, Colo.). 

Records available.- October 1930 to September 1948 in reports of Geological Survey. July 

1915 to December 1931 in reports of State engineer. 

Average discharge.- 23 years (1925-48), 868 second-feet. 

Extremes.- Maximum discharge during year, 9,730 second-feet June 7 (gage height, 9.18 

feet); minimum daily, 238 second-feet Sept. 14-19. 

1930-48: Maximum discharge, that of June 7, 1948; maximum gage height, 9.41 feet 

'May 17, 1941; minimum daily discharge, 140 second-feet (estimated) Aug. 21, 1931. 

Remarks.- Records good. Diversions above station for irrigation. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 332 354 8620 504 a480 785 1,080 2,240 5,720 1,060 280 275 

2 326 354 a640 504 a470 721 1,090 2,600 6,390 897 332 260 3 321 348 a700 518 a480 713 1,150 2,840 7,110 888 305 256 4 316 348 a660 518 a490 668 1,030 2,760 7,610 942 290 251 5 321 348 623 525 a510 567 1,050 2,460 7,860 978 348 246 

6 332 419 581 532 8500 574 1,070 2,310 9,640 897 338 242 7 326 470 581 532 511 660 1,050 2,310 9,730 853 321 242 8 321 401 525 539 504 668 1,050 2,460 9,450 785 310 242 9 316 365 525 553 497 645 1,080 2,530 8,910 737 316 242 10 316 464 532 553 518 645 1,090 2,530 8,120 638 305 242 

11 305 539 497 560 497 630 1,070 2,240 7,360 588 310 242 12 295 539 497 560 a490 574 1,200 1,790 6,870 470 316 242 13 295 539 497 546 a470 638 1,400 1,470 6,630 407 316 242 14 326 595 477 539 a460 675 1,430 1,240 6,630 365 305 238 15 343 630 511 525 8480 698 1,370 1,140 6,630 343 300 238 

16 338 623 497 532 8480 682 1,230 !,340 5,930 326 290 238 17 338 630 511 525 8490 769 1,250 1,800 5,370 316 280 238 18 365 638 504 532 8500 888 1,520 2,460 4,340 316 275 238 19 444 645 504 511 504 888 1,970 2,840 3,170 355 275 238 20 419 668 497 484 539 969 2,380 3,340 3,000 537 280 242 

21 407 623 504 490 539 978 2,760 4,250 3,000 354 280 242 22 389 546 497 504 574 942 3,080 5,050 2,680 348 280 242 23 377 484 497 511 645 969 3,260 5,700 2,310 348 280 242 24 371 511 497 511 690 1,140 3,340 6,630 2,100 354 275 242 25 354 539 504 504 675 1,320 2,920 8,640 1,810 348 285 242 

26 348 8580 504 518 638 1,190 2,380 9,180 1,490 348 275 251 27 338 a620 504 490 690, 1,160 1,970 9,180 1,240 332 265 246 28 343 a650 511 8420 721 1,090 1,740 8,380 1,110 316 256 246 29 343 a660 518 a430 737 1,090 1,710 7,360 987 295 256 246 30 348 n640 546 a480 - 1,080 1,920 6,390 1,030 280 251 251 31 348 560 a490 - 1,070 5,930 - 285 251 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 10,661 444 295 344 21,150 November 15,770 668 348 526 31,280 December 16,621 700 477 536 32,970 

Calendar year 1947 216,063 3,260 251 592 428,600 

January 15,940 560 420 514 31,620 February 15,779 737 460 544 31,300 March 26,086 1,320 567 841 51,740 April 50,540 3,340 1,030 1,685 100,200 May 121,390 9,180 1,140 3,916 240,800 June 153,227 9,730 987 5,108 303,900 July 16,306 1,060 280 526 32,340 August 9,046 348 251 292 17,940 September 7,344 275 238 245 14,570 

Water year 1947-48 458,710 9,730 238 1,253 909,800 

1,510 Sec.-ft.; glsetZmI.13C4?IggceeNC.;N13:ne27 Apr. 23 N1°.),.:;2(1,320 sec.-ft. a No gage-height record; discharge computed on basis of available recorder trace, weather records, 

and records for station at Embudo. 
	 	 -------- 

228 RIO GRANDE BASIN 

Rio Grande at Embudo, N. Mex. 

Location.- Water-stage recorder, lat. 36°12'20", long. 105°57'40", in SW-ISW1 ec. 23, T. 

23 N., R. 9 E., a quarter of a mile downstream from bridge at Embudo and 2 miles 

downstream from Embudo Creek. 

Drainage area.- 10,400 square miles (includes 2,940 square miles in closed basin in 

northern part of San Luis Valle, Colo.). 

Records available.- January 1889 to December 1903, September 1912 to September 1916 and 

October 1930 to September 1948 in reports of Geological Survey. January 1889 to Deco,-

ber 1903 and September 1912 to December 1931 in reports of State engineer. 

Average discharge.- 48 years (1889-93, 1894-1903, 1912-16, 1917-48), 1,068 second-feet. 

Extremes.- Maximum discharge during year, 10,200 second-fee- May 27; maximum gage height, 

12.43 feet June 7; minimum daily discharge, 237 second-feet Sept. 7-10. 

1889-1903, 1912-48: Maximum discharge, 15,900 second-feet June 19, 1903 (gage • 

height, 15.8 feet); minimum daily, 35 second-feet Dec. 31, 1903. 

Remarks.- Records good. Diversions above station for irrigation. Records of suspended 

sediment loads for the water year 1948 are given in Water-Supply Paper 1133. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. HE( KIMMET; M gi a ODD EPJF3g Mint FAH 000000000

000000 0000

000_ 000 gpopo

'42c'f,2:4SS g2,12

WZ,V09, 

350 392 656 540 346 392 668 520 

343 392 782 535 

343 385 716 535 343 382 716 545 

2,740 6,270 1,160 303 277 

3,120 6,720 1,020 330 265 

3,360 7,340 950 344 257 3,240 7,980 985 316 241 3,010 8,140 1,020 538 241 

2,790 8,820 985 450 241 2,790 9,870 915 398 237 

3,010 9,870 859 390 237 

3,120 9,160 810 370 237 

3,120 8,310 726 348 237 

2,740 7,660 666 348 241 

2,190 7,020 588 348 241 

1,740 6,870 520 348 241 1,460 6,870 470 326 241 

1,320 6,723 420 312 241 

1,500 6,120 406 298 245 1,990 5,560 384 285 245 2,790 4,500 370 281 245 

3,360 3,320 393 290 245 

4,200 3,210 534 290 249 

4,970 3,100 388 294 249 

5,660 2,880 384 15 249 6,260 2,530 375 285 249 7,190 2,230 389 290 249 9,990 2,000 375 294 261 

9,690 1,730 384 290 294 10,000 1,480 366 285 294 9,330 1,320 339 269 294 8,310 1,160 321 265 294 7,180 1,120 312 261 265 

----2 2!:422',,9 7,==2 ===1 

354 432 630 555 

354 488 610 555 346 456 565 565 340 410 555 575 336 464 555 575 

336 565 530 585 329 590 525 580 326 590 510 560 406 640 496 550 416 686 545 555 

396 674 535 560 

388 680 530 550 399 710 535 570 

492 680 535 550 472 698 535 520 

448 656 540 525 428 585 530 555 416 540 515 565 410 525 520 570 402 570 520 565 

396 610 530 570 388 680 530 535 388 704 535 452 388 740 540 444 392 686 565 550 392 580 550 6,420 303 265 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 11,863 492 326 383 23,530 November 17,002 740 382 567 33,720 December 17,634 782 496 569 34,980 

Calendar year 1947 238,365 3,960 255 653 472,800 - --------_ 

January 16,961 585 444 547 33,640 February 17,772 800 488 613 35,250 March 27,562 1,420 600 889 54,670 April 59,060 3,960 1,080 1,969 117,100 May 137,590 10,000 1,320 4,438 272,900 June 159,880 9,870 1,120 5,329 317,100 July 18,116 1,160 303 584 35,930 August 9,986 538 261 322 19,810 September 7,602 294 237 253 15,080 

Water year 1947-48 501,028 10,000 237 1,369 993,700 

Peak discharge rase, 2,000 sec.-ft.).- Apr. 23 (10 p.m.) 4,080 sec.-ft.; May 3 (7 p.m.) 3,480 

sec.-ft.; May 27 6 a.m.) 10,200 sec.-rt.; June 7 (8 p.m.) 10,000 sec.-ft. 

a No gage-height record; discharge computed on basis of records for stations below Taos Junction 

bridge and at Otowi bridge. 

e Gage-height record not representative of mean for day; discharge computed as explained in footnote a. 
		

RIO GRANDE BASIN 229 

Rio Grande at Otowi Bridge, near San Ildefonso, N. Mex. 

Location.- Water-stage recorder, lat. 35°52,25", long. 106°08.35", in San Ildefonso 

Pueblo Grant, 250 feet (revised) downstream from new highway bridge, miles southwest of San Ildefonso Pueblo, 2f miles downstream from Rio Pojoaque, and 7 miles west 

of Pojoaque. Datum of gage is 5,488 48 feet above mean sea level, datum of 1929 

Drainage area.- 14,300 square miles (includes 2,940 square miles in closed basin in 

nortnern part of San Luis Valley, Colo.). 

Records available.- February 1895 to December 1905, June 1909 to December 1914, and 

October 1930 to September 1948 in reports or Geological Survey. February 1895 to 

December 1905 and June 1909 to December 1931 in reports of State engineer. 

Average discharge.- 21 years (1927-47), 1,564 second-feet. 

Extremes.- Maximum discharge during year, 12,400 second-feet May 28 (gage height, 9.34 

feet); minimum daily, 240 second-feet Sept. 21, 22. 

1930-48: Maximum discharge, 22,500 second-feet May 16, 1941; maximum gage height, 

13.70 feet May 14, 1914; minimum daily discharge, 128 second-foet June 21, 1934. 

Remarks.- Records good except those for periods of no gage-height record, which are 

poor. Flow partly regulated by El Vado Reservoir (see p.240). Diversions above 

station for irrigation. Records of chemical analyses and suspended sediment loads 

for the water year 1948 are given in Water-Supply Paper 1133. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 333 2 330 1,940 693 590 1,130 1,390 3,690 7,260 1,420 1,120 756 

3 326 1,940 612 570 1,000 1,340 3,850 7,730 1,240 1,080 750 

4 316 5 319 

6 830 7 879 a 907 9 900 10 893 

11 724 12 476 13 432 14 1,530 15 942 

16 623 17 505 18 476 19 525 20 550 

21 510 22 647 23 798 24 817 25 817 

26 817 27 819 28 810 29 810 30 824 31 810 

2,060 628 601 893 1,390 4,090 8,460 1,080 953 738

MFF 00000 

RU

EE§R r§ HP § "§" ,.: ..7,:„,:„: ._ „( cc , .,_„:.:,:_:,.; 

1,940 628 645 914 1,440 3,930 8,970 1,120 686 805 1,890 a630 663 772 1,440 3,850 9,490 1,120 1,030 1,240 

1,840 634 645 645 1,580 3,540 9,760 1,120 1,170 1,240 

1,730 675 669 810 1,630 3,540 

1,780 675 687 772 1,630 3,540 10,900 1,010 883 1,160 11,800 981 877 680 1,680 687 618 804 1,730 3,610 10,900 890 844 652 1,630 693 634 810 1,940 3,540 9,950 818 738 609 

1,630 693 657 753 2,230 3,310 8,980 744 721 469 1,580 693 550 759 2,290 2,740 8,290 674 726 a370 1,480 663 515 747 2,290 2,230 7,630 553 738 310 1,480 640 560 791 2,290 2,000 7,630 483 726 271 1,300 640 601 844 2,740 1,840 7,420 419 a680 271 

1,130 628 618 872 2,950 2,000 7,000 365 a660 274 1,030 628 640 886 3,160 2,350 747 623 663 1,170 3,540 6,200 1,210 a630 274 3,090 5,260 960 a600 256 

3 

a700 645 729 1,210 4,010 3,690 4,130 1,120 a570 244 a680 580 798 1,210 4,430 4,520 3,660 1,240 544 244 

a660 565 956 1,170 4,790 5,160 3,500 1,120 544 a240 640 623 1,090 1,130 4,880 5,750 3,360 974 544 a240 628 651 1,170 1,130 5,160 6,370 3,210 793 1,280 a250 601 663 1,260 1,300 4,970 623 663 1,050 1,580 4,430 8,460 2,730 6,810 3,000 781 1,080 259 805 877 262 

645 663 1,030 1,530 3,770 10,600 2,240 844 850 284 

645 500 1,040 1,390 2,950 645 618 1,040 1,440 3,310 11,800 1,960 793 837 303 

663 486 1,050 1,440 3,020 11,800 1,760 744 812 344 10,300 1,510 726 799 306 699 575 1,440 3,380 8,710 1,380 686 781 293 735 634 - 1,440 7,490 1,030 781 -

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 

November 

December 

21,286 

55,400 

37,371 

1,530 

2,060 

2,060 

316 

810 

601 

687 1,847 

1,206 

42,220 

109,900 

74,120 

Calendar year 1947 385,062 4,970 316 1,055 - 763,700 - -- - - - - - - - - - -- January 

February 

March 

April 

May 

June 

July 

August 

September 

19,629 

22,339 

32,782 

86,100 

158,200 

186,070 

27,863 

25,161 

14,394 

693 1,260 

1,580 

5,160 

11,800 

11,800 

1,420 

1,280 

1,240 

486 

515 

645 1,340 

1,840 

1,380 365 

544 

240 

633 

770 

1,057 

2,870 

5,103 

6,202 899 

812 

480 

38,930 

44,310 

65,020 

170,800 

313,800 

369,100 

55,270 

49,910 

28,550 

Water year 1947-48 686,595 11,800 240 1,876 1,362,000 

Peak discharge (base, 5,200 sec.-ft.).- Apr. 23 (11 a m.) 5,350 sec.-ft.; May 28 (3 a.m.) 12,407 sec.-ft.; June 8 (7:30- a.m.) 12,100 sec.-ft. a No gage-height record; discharge computed on basis of available recorder trace, weather records, and records for main stem and tributary stations above and below. 
		

230 RIO GRANDE BASIN 

Rio Grande at Cochiti, N. Mex. 

Location.- Water-stage recorder, lat. 35°37'10", long. 106°19'10", in NEi sec. 17, T. 16 

N., R. 6 E., at highway bridge 1 miles northeast of Cochiti, 4 miles north of Pena 

Blanca, and 8 miles upstream from Galisteo Creek. Datum of gage is 5,224.70 feet 

above mean sea level, datum of 1929. 

Drainage area.- 14,600 square miles (included 2,940 square miles in closed basin in 

northern part of San Luis Valley, Colo.). 

Records available.- October 1930 to September 1948 in reports of Geological Survey. 

January 1925 to December 1931 in reports of State engineer. 

Average discharge.- 23 years (1925-48), 1,560 second-feet. 

Extremes.- Maximum discharge during year, 12,400 second-feet June 8; maximum gage height, 

8.29 feet May 27; minimum daily discharge, 128 second-feet Sept. 22. 

1930-48: Maximum discharge, 23,400 second-feet May 15, 1941 (gage height, 10.93 

feet); minimum daily, 1 second-foot Aug. 10-12, 1934. 

Remarks.- Records fair. Diversion above station for irrigation. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 225 847 1,910 730 

O 1,' ' S'.i' ,' ,24,3t%2 885ig S'g 82,7, °22 82 8282 w '`V.''.) ".' `g"" '-.'t•'.. '' "." ,,•-, •-•I ..-4 ..•-• , 

1,300 1,320 3,810 7,440 1,110 921 570 

2 242 847 1,910 652 1,210 1,310 3,930 8,090 1,070 892 641 

3 286 858 2,030 625 1,030 1,320 4,180 8,760 912 854 719 4 286 1,680 1,990 652 

5 210 1,780 1,920 650 

6 418 1,840 1,920 643 7 720 2,030 1,860 607 

8 836 2,140 1,790 680 9 902 2,100 1,760 680 10 979 2,010 1,730 720 

11 946 2,030 1,640 *720 

12 508 1,990 •1,540 740 13 328 1,990 a1,500 730 14 1,160 2,060 a1,450 710 15 997 2,100 a1,400 700 

16 553 2,190 a1,200 680 17 474 2,190 a1,100 680 18 442 2,210 a800 670 

19 382 2,150 a730 700 

20 375 2,120 a700 *643 

21 347 2,060 •670 625 

22 389 1,990 661 643 

23 700 1,960 652 b670 

24 836 1,870 652 b680 25 858 1,890 589 b680 

26 814 1,960 616 b670 

27 720 1,960 690 b600 28 661 2,030 661 517 

29 661 2,030 625 •466 

30 720 2,010 598 490 31 825 730 616 

1,010 1,410 4,050 9,280 980 585 719 

957 1,420 3,930 9,620 921 773 950 

814 1,470 3,580 9,800 883 1,190 1,100 836 1,520 3,470 10,500 827 902 1,070 

913 1,540 3,470 11,600 764 755 683 

957 1,680 3,470 10,900 692 710 555 

935 1,960 3,360 9,800 683 578 601 

858 2,300 3,260 8,590 633 548 578 

803 2,330 2,560 8,420 532 585 295 

781 2,330 2,150 7,760 428 683 194 803 2,260 1,820 7,600 352 683 158 913 2,670 1,710 7,600 336 562 152 

924 2,850 1,810 7,120 358 489 211 968 2,950 2,230 6,200 811 440 295 1,140 3,260 2,850 5,340 818 410 275 1,320 3,700 3,580 4,380 854 440 189 1,270 4,050 4,300 3,720 930 503 134 

1,320 4,550 4,810 3,360 970 503 131 1,240 4,680 5,620 3,260 902 410 128 1,140 5,200 6,200 3,150 791 804 169 1,240 5,070 6,500 2,950 755 990 248 1,580 4,810 8,090 2,670 674 701 257 

1,650 3,930 10,200 2,160 657 692 206 1,530 3,580 11,300 1,900 625 773 152 1,420 3,150 11,300 1,600 562 755 194 1,310 2,950 9,800 1,320 593 633 190 1,320 3,470 8,420 1,120 649 601 231 1,340 7,600 836 609 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 18,793 1,160 210 606 37,280 November 56,922 2,210 847 1,897 112,900 December 38,024 2,030 589 1,227 75,420 _ -

Calendar year 1947 69 332 210 2 2 __ 5!349_ 1,011_ _TR.,6_02_ 

January 20,269 740 466 654 40,200 February 24,249 1,420 500 836 48,100 March 34,832 1,650 781 1,124 69,090 April 85,040 5,200 1,310 2,835 168,700 May 153,360 11,300 1,710 4,947 304,200 June 186,010 11,600 1,120 6,200 368,900 July 22,908 1,110 336 739 45,440 August 20,974 1,190 410 677 41,600 September 11,995 1,100 128 400 23,790 

Water year 1947-48 673,376 11,600 126 1.840 1.336.000 

Peak discharge rase, 4,500 sec.-ft.).- Apr.23 (3 p.m. 5,340 sec.-ft.; May 27 (11:30 p.m.) 12,000 sec.-ft.; June -8 10 a.m.) 12,400 sec.-ft.; June 19 (4 p m.) 7,760 sec.-ft. •Winter discharge measurement made on this day. 

a No gage-height record; discharge computed on basis of weather records and records for stations 

near San Ildefonso and at San Felipe. 

b Stage-discharge relation affected by ice. 
RIO GRANDE BASIN 231 

Rio Grande at San Felipe, N. Mex. 

Location.- Water-stage recorder, lat. 35°26'30", long. 106°26'30", in NWIISWi sec. 17, T. 

14 N., R. 5 E., at highway bridge in San Felipe Grant, 2,000 feet downstream from Tongue 

Arroyo, half a mile upstream from San Felipe Pueblo, and 12 miles northeast of Bernalillo. Datum of gage is 5,110.38 feet above mean sea level, datum of 1929. Datum was 

0.59 foot lower from May 16, 1945, to Sept. 30, 1946. 

Drainage area.- 16,100 square miles (includes 2,940 square miles in closed basin in northern part of San Luis Valley, Colo.). 

Records available.- October 1930 to September 1948 in reports of Geological Survey. January 1926 to December 1931 (revised) in reports of State engineer. 

Average discharge.- 22 years (1926-48), 1,666 second-feet. 

Extremes.- Maximum discharge during year, 12,500 second-feet June 8; maximum gage height, 

9.711 feet Jan. 30 (ice Jam); minimum daily discharge, 154 second-feet Sept. 22. 

1930-48: Maximum discharge, 42,100 second-feet Aug. 21, 1935, from rating curve 

extended above 15,000 second-feet by logarithmic plotting; maximum gage height, 11.13 

feet June 26, 1937; minimum daily discharge, 34 second-feet July 7, 1934. 

Remarks.- Records fair. Diversions above station for irrigation. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. -"- c FO itS -g"- "gzg — 

R vcssn (5; '800000 080 880 8 

,MOB4O

W,MNW

..WNN. ,,NNCA 

00000

0EiEH §M'ci FFiFsci HFU 

MMP PPP ,—...tveN,N) NNW WN PPVI DI J J JJD)m 01—, 1—.0CDl0 ,17 J 

WM AN A NICA ,NOD Co ,,d1.0? 

888M 8'(;8888'88(,;"(5 ';',S'222 88888873S-6'23

290 833 1,940 b600 1,100 1,320 626

1,130 1,250 1,040 1,300 1,020 1,350 970 1,390 

960 1,540 815 1,670 870 1,620 920 1,660 910 1,950 

860 2,260 

1 31,400 1,010

2 280 824 1,950 b560 1,290 970 642

3 363 815 2,100 596 1,050 950 779 1,100 730 762 1,080 1,340 90C 

1,020 1,260 1,210 950 1,050 1,200 880 890 940 

4 340 1,300 2,100 634 5 301 1,720 2,020 666

389 

797 1,950 

1,950 1,950 

1,920 .706 

698 833 1,950 1,860 698 

6 

7 

8 

9 880 1,920 1,800 722 815 870 626 10 940 1,940 1,730 754 746 730 762 

11 890 2,020 1,730 746 788 626 722 642 642 512 554 770 334 470 746 a250 405 666 220 

418 a600 212 566 a500 345 970 464 306 851 438 270 1,030 547 176 

1,080 512 168 950 457 , 154 870 603 164 

12 575 2,100 1,660 788 815 2,420 13 464 2,100 1,570 738 14 849 2,100 1,520 698 15 873 2,100 1,450 698 

16 674 2,180 1,280 .698 17 582 2,100 1,200 b680 18 491 2,100 960 b660 19 418 2,100 730 b640 20 477 2,100 714 .658 

21 431 2,100 .674 618 22 450 1,950 690 626 23 682 2.020 666 626 

788 2,260 842 2,020 860 2,260 

880 2,590 990 2,680 1,140 3,030 1,360 3,410 1,300 3,820 

1,290 4,480 1,260 4,830 1,150 5,320 1,240 5,200 1,520 4,710 

1,610 3,920 1,490 3,510 1,410 3,220 1,330 3,030 1,390 3,310 1,380 -

24 754 1,890 666 650 770 1,070 260 25 824 1,840 674 610 754 714 495

26 806 1,860 690 582 722 674 368 27 797 1,900 722 b500 714 797 220 28 788 2,020 722 b400 682 779 245 29 806 2,020 706 b350 610 714 285 30 824 2,020 b700 b400 714 642 255 31 890 - b650 b500 738 658 -

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 19,758 940 280 637 39,190 November 55,822 2,180 815 1,861 110,700 December 39,744 2,100 650 1,282 78,830 

Calendar year 1947 380,891 5,320 250 1,044 755,500 

January 19,500 788 350 629 38,680 February 23,712 1,350 400 818 47,030 March 34,640 1,610 788 1,117 68,710 April 83,330 5,320 1,250 2,778 165,300 May 150,370 11,700 1,840 4,851 298,300 June 186,690 11,700 1,400 6,223 370,300 July 25,629 1,400 405 827 50,830 August 23,419 1,340 438 755 46,450 September 14,408 1,210 154 480 28,580 

Water year 1947-48 677,022 11,700 154 1,850 1,343,000 

Peak discharge (base, 5,000 sec.-ft.k- Apr. 23 (6:20 p.m.) 5,580 sec.-ft.; May 28 (9 a.m.) 12,100 sec.-ft.; June 8 (5 p.m.) 12,500 sec.- t.; June 19 (8 p.m.) 6,960 sec.-ft. Winter discharge measurement made on this day. a No gage-height record; discharge computed on basis of weather records and records for stations at Cochiti and near Bernalillo. b Stage-discharge relation affected by Ice. 

905771 0- 50 - 16 
232 RIO GRANDE BASIN 

Rio Grande near Bernalillo, N. Mex. 

Location.- Water-stage recorder, lat. 35°17,05", long. 106°35,45", in Alameda Grant, '2 miles northwest of Sandia Pueblo, 3 miles southwest of Bernalillo, Sandoval County, 3.5 miles downstream from State Highway 44, and 8.5 miles downstream from Jemez Creek. 

Records available.- May 1941 to September 1948. 

Extremes.- Maximum discharge during year, 13,300 second-feet May 28 (gage height, 5.26 

feet); minimum daily, 48 second-feet Sept. 23. 

1941-48: Maximum discharge, 25,400 second-feet May 16, 1941; maximum gage height, 6.83 feet Sept. 20, 1941; minimum daily discharge, 20 second-feet July 25-27, Sept. 14, 26, 27, 1946. 

Remarks.- Records fair. Diversions above station for irrigation. Records of suspended 

sediment loads for the water year 1948 are given in Water-Supply Paper 1133. 

Discharge, in second-feet, water year October1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 58 654 1,760 b620 654 1,050 1 350 3,410 6,870 760 828 261 2 

3 

49 

65 646 1,850 750 1,850 .1,580 b600 710 1,250 750 1,180 1,440 

1 410 4,100 

4,050 7,650 

8,370 910 595 819 

432 261 

372 4 65 1,120 2,090 b660 760 990 1 690 3,800 9,150 942 378 327 5 198 1,660 1,980 .710 780 832 1,660 3,900 8,850 638 842 620 

6 220 1,410 1,980 720 793 760 1 690 3,320 9,150 595 720 1,010 7 288 1,600 2,020 690 672 690 1 720 3,500 9,750 572 654 595 8 395 1,920 1,880 663 720 793 1,520 3,600 11,000 499 819 527 9 499 1,880 1,760 654 750 793 1 600 4,300 10,400 439 760 285 10 572 1,880 1,660 750 646 974 2,060 3,650 9,450 378 420 290 

11 580 1,950 1,520 720 572 819 2 750 3,410 8,310 772 355 256 12 557 1,980 1,410 720 378 700 2 870 2,420 8,130 638 338 491 13 

14 

311 2,090 740 1,820 1,490 

1,410 663 629 401 

378 638 

638 2 390 

2 620 2,060 1,660 7,770 

7,290 271 242 389 

395 306 

103 15 1,190 1,760 1,380 646 557 663 2,660 1,720 7,530 158 710 71 

16 478 2,020 1,160 629 672 646 3 040 2,060 7,110 158 595 67 

17 378 2,060 1,120 549 806 700 3 130 1,880 6,270 141 242 77 

18 355 1,920 884 638 942 806 3,750 2,620 5,320 805 191 91 19 445 2,230 720 638 780 1,090 3 800 2,960 4,780 770 195 220 20 420 2,230 730 580 871 1,440 4,350 4,560 4,940 595 238 161 

21 285 1,760 690 612 990 1,300 4 450 4,720 3,270 690 233 56 

22 

23 252 1,630 378 1,760 646 

680 612 604 1,160 1,090 1,040 958 5,220 4 830 5,000 6,510 3,090 

3,090 595 

549 465 465 49 48 

24 505 1,920 672 629 1,410 1,020 5 270 6,390 2,830 372 633 52 

25 492 1,790 710 565 1,300 1,230 5,380 7,470 2,540 622 519 75 

26 478 1,850 700 426 1,160 1,160 3 800 10,100 1,950 646 296 915 27 492 1,950 654 338 1,230 1,120 3,500 11,000 2,460 327 360 252 28 492 1,950 620 311 1,210 1,250 3 000 12,400 1,440 285 372 135 29 426 2,090 638 372 1,280 1,210 3 040 11,000 1,490 252 672 111 30 445 1,790 690 322 1,300 3,130 9,150 974 290 587 1110 31 505 •663 534 - 1,300 7,590 280 266 

Month Secondfoot-days Maximum Minimum Mean Runoff in 

acre-feet 

October 12,613 1,190 49 407 25,020 November $2,C70 2,230 646 1,736 103,300 December 38,017 2,090 620 1,226 75,410 

Calendar year1947 312,854 5,190 45 857 620,600 

January 

February 

March 

18,384 

24,422 

30,340 

750 1,410 

1,440 

311 

378 

638 

593 

842 

979 

36,460 

48,440 

60,180 

April 

May 

June 

89,120 

154,310 

181,224 

5,380 

12,400 

11,000 

1,350 

1,660 974 

2,971 

4,978 

6,041 

176,800 

306,100 

359,500 

July 

August 

September 

15,786 

15,188 

8,194 

942 

842 1,010 

141 

191 

48 

509 

490 

273 

31,310 

30,120 

16,250 

Water year 1947-48 639,668 12,400 48 1,748 1,269,000 

Peak discharge (base, 5000 sec.-ft.).- Apr. 25 (7:30 a.m.) 6,040 sec.-ft.; May 28 (7:30 a.m.) 13,300 sec.-ft.; June 8 (3:45 p.m.) 11,700 sec.-ft.; June 20 (12:1" a.m.) 8,350 sec.-ft. •Winter discharge measurement made on this day. a Incomplete gage-height record; discharge computed on basis of available recorder trace, weather records, and records for main stem and tributary stations above and below. b Stage-discharge relation affected by ice. 
RIO GRANDE BASIN 233 

Rio Grande at Albuquerque, N. Mex. 

Location.- Water-stage recorder, lat. 35°05'20", long. 106°40'45", in SE, sec. 13, T. 10 

N., H. 2 E. (projected), at bridge on U. S. Highway 66, at Albuquerque, in Albuquerque 

Grant. Datum of gage is 4,946.04 feet above mean sea level, datum of 1929. 

Records available.- January 1942 to September 1948. 

Extremes.- Maximum discharge during year, 13,100 second-feet May 28 (gage height, 6.61 

feet); minimum daily, 44 second-feet Oct. 3. 

1942-48: Maximum discharge, 25,000 second-feet Apr. 24, 1942, from rating curve extended above 13,900 second-feet by logarithmic plotting; maximum gage height, that of 

May 28, 1948; minimum daily discharge, 25 second-feet Aug. 2, 3, 1946. 

Remarks.- Records fair. Diversions above station for irrigation. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 105 817 1,950 690 518 1,160 1,160 3,540 7,580 700 239 370 

2 49 886 2,000 622 700 1,340 1,090 4,350 7,930 650 510 132 3 44 862 1,880 526 740 1,160 1,140 3,860 8,240 622 640 105 

4 49 963 1,800 550 806 1,090 1,400 4,250 8,720 751 518 118 

5 46 1,540 1,900 640 828 983 1,200 3,950 9,040 510 510 138 

6 60 1,710 1,950 700 *946 817 1,270 3,900 9,690 421 940 352 

7 188 1,830 2,100 670 710 690 1,350 3,340 10,000 382 739 631 

8 559 1,900 2,050 660 710 795 1,370 2,980 11,300 346 577 550 

9 358 1,830 1,950 680 .690 839 1,560 3,950 11,900. 300 510 209 

10 421 1,820 1,640 631 640 922 1,640 3,180' 10,200 '240 463 115 

11 442 1,830 1,540 650 740 850 2,610 2,940 9,360 240 486 110 

12 518 1,800 1,620 690 .497 700 2,610 3,180 8,160 449 196 118 13 247 2,000 1,580 680 352 622 2,250 2,370 7,440 486 165 130 14 655 1,980 1,440 670 013400 660 2,050 1,760 6,740 305 165 156 15 1,480 1,900 1,390 631 b500 640 2,220 1,760 7,020 125 240 101 

16 448 2,050 1,320 631 •b600 700 2,860 2,020 6,950 105 340 73 

17 255 2,160 1,160 631 b900 660 2,820 1,460 6,810 101 435 75 

18 196 1,980 983 595 .1,040 710 3,660 1,880 5,580 209 236 79 

19 204 2,050 773 613 874 1,010 3,460 2,740 4,203 478 110 83 20 245 1,780 773 670 946 1,180 3,780 3,460 5,740 442 105 75 

21 435 1,780 740 586 934 1,250 4,200 4,450 2,700 478 112 110 

22 324 1,980 740 559 1,130 1,020 5,050 5,150 2,700 478 130 73 23 171 1,830 730 622 1,400 1,070 5,250 6,180 2,740 358 147 65 24 463 1,950 773 622 1,480 1,140 5,460 5,940 2,580 275 300 60 25 435 1,690 700 640 1,500 1,190 5,460 6,740 2,250 260 456 58 

26 435 1,710 670 660 1,300 1,250 4,500 9,040 2,000 435 153 497 27 370 1,900 751 526 1,160 1,160 3,620 10,100 2,610 518 135 115 28 376 1,850 740 *310 1,120 1,250 3,460 12,100 1,320 330 172 132 29 310 1,900 730 340 1,120 1,05Q 2,900 10,900 1,070 147 220 108 30 320 1,800 720 b340 996 2,980 9,280 850 125 352 92 

31 442- 710 9376 - 1,140 7,580 135 494 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 10,650 November 52,088 December 39,803 

Calendar year 1947 287,521 

January 18,411 February 25,281 March 30,044 April 84,380 May 148,330 June 183,420 July 11,401 August 10,786 September 5,030 

, 

2EFIE."ta

0. 10, 00.

44 344 21,120 817 1,736 103,300 670 1,284 78,950 

44 788 570,300 

310 594 36,520 352 872 50,140 622 969 59,590 1,090 2,813 167,400 1,460 4,785 294,200 850 6,114 363,800 101 368 22,610 105 348 21,390 58 168 9,980 

Water year 1947-48 619,624 12,100 44 1,693 1,229,000 

Peak discharge rase, 4,000 sec.-ft.).- Apr. 24 a.m. 6,000 sec.-ft.; May 3 (11:40 p.m.) 6,300 sec.-ft.; May 28 6 s...) 13,100 sec.-ft.; June 9 (5 a.m. 12,700 sec.-ft.; June 20 (4 a.m.) 9,690 sec.-ft. •Winter discharge measurement made on this day. b Stage-discharge relation affected by ice. 
				

		

- - 

234 RIO GRANDE BASIN 

Rio Grande near Belen, N. Mex. 

Location.- Water-stage recorder, lat. 34°39'10", long. 106°44'10", in Tome Claim, at bridge 

on State Highway 52, 2 miles east of Belen, Valencia County. 

Records available.- January 1942 to September 1948. 

Extremes.- Maximum discharge during year, 12,800 second-feet May 29 (gage height, 4.91 

feet); minimum daily, 76 second-feet Sept. 5, 6. 

1942-48: Maximum discharge, 23,100 second-feet Apr. 24, 1942 (gage height, 5.05 

feet), from rating curve extended above 12,500 second-feet by logarithmic plotting; 

minimum daily, 40 second-feet Oct. 5, 1946. 

Remarks.- Records good below 1,000 second-feet, fair above. Diversions above station for 

---MFTgation. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

502 90 112 390 87 96 348 85 85 411 87 79 418 90 76

315 109 76 207 142 87 181 167 188 207 211 122 181 188 118 

184 184 108 

199 184 105 219 188 94 203 195 85 211 81 

148 139 83 145 125 79 145 120 78 148 108 78 178 94 78 

188 85 78 192 85 78 227 87 78 

215 85 78 

170 87 78 

rt:5W

NNN M,.M .,o W 

WAt

NW

YOM ici

1 t0r'm "" O)O =2,1.1'2 22?,,(VW= =2.11 

85 378 1,850 b800 554 83 755 1,980 .788 733 83 862 2,070 722 955 83 1,060 1,950 628 1,020 90 1,670 2,040 691 .940 

H

P.F2i 

1,280 2,650 1,160 3,620 1,160 2,840 1,340 3,250 1,060 2,840 

94 1,820 1,920 755 875 1,110 3,060 87 

92 1,690 1,740 1,980 

1,980 700 

637 1,040 914 1,090 

1,190 2,910 

2,600 

105 1,850 1,790 655 888 1,190 3,140 

115 1,950 1,670 722 836 1,320 2,370 

145 1,950 1,580 722 744 1,980 2,460 

203 2,040 1,480 673 b600 2,210 2,400 

377 2,100 1,460 722 b450 2,400 2,040 

295 1,850 1,320 755 554 2,010 1,550 

1,030 1,870 1,260 711 637 2,240 1,320 

760 1,980 1,240 691 *777 2,560 1,950 

390 

325 

271 

195 

1,920 

1,980 

1,980 

2,120 

1,110 

1,040 862 

810 

700 

744 

766 

755 

823 

940 

940 

888 

2,560 

3,540 

3,180 

3,660 

1,240 

1,210 

2,280 

2,910 

164 

160 

130 

1,980 

1,820 

1,980 

810 

.777 

744 

682 

646 

619 

1,060 

1,020 

1,230 

3,780 

4,460 

4,640 

3,410 

3,820 

5,150 

128 

181 1,920 

1,900 722 

744 646 

646 1,420 

1,690 5,400 5,300 5,300 

6,250 

4,280 9,040 151 94 81

.

000000

Secondfoot-days 

250,471 

157 1,980 777 664 1,600 164 1,850 788 578 1,440 151 1,770 744 372 1,300 145 1,870 722 248 1,230 151 1,950 755 360 - 139 b850 432 -

3,410 10,400 139 101 166 

3,020 11,500 122 103 92 2,660 12,400 108 108 87 2,370 10,900 98 181 83 

- 8,320 96 136 

Maximum Minimum Mean Runoff in 

acre-feet Month 

October 

November -

December 

Calendar year 1947 

6,578 1,030 83 212 13,050 

52,585 2,120 578 1,753 104,300 

39,825 2,070 722 1,285 78,990 

4,910 73 686 496,800 

-

January 20,230 800 248 653 40,130 

February 28,098 1,690 450 969 55,730 

March 30,939 1,420 673 998 61,370 

April 77,560 5,400 1,060 2,585 153,800 

May 135,130 12,400 1,210 4,359 268,000 

June 176,978 11,000 602 5,899 351,000 

July 6,605 502 96 213 13,100 

August 3,956 211 85 128 7,850 

September 2,807 188 76 935 5,570 

Water year 1947-48 581,291 12,400 76 1,588 1,153,000 

Peak discharge (base, 4j000 sec.-ft.).- Apr. 24 (9:30 a.m.) 6,100 sec.-ft.; May 4 (10 a.m.)4,190 

sec.-ft.; May 29 (9 a.m.)- 12,800 sec.-it.; June 10 (7:30 a.m.) 11,900 sec.-ft.; June 20 (1 p.m.) 7,330 sec.-ft. •Winter discharge measurement made on this day. b Stage-discharge relation affected by ice. 
RIO GRANDE BASIN 235 

Rio Grande near Bernardo, N. Mex. 

Lccatior..- Water-stage recorder, lat. 34°25'00", long. 106°47'0", in W}NWi sec. 12, T. '2 N., H. 1 E. (projected), at bridge on U. S. Highway 60, 2t miles east of Bernardo and 

3} miles upstream from Rio Puerco. Datum of gage is 4,723.95 feet above mean sea level, 

datum of 1929. Auxiliary water-stage recorders on San Francisco riverside drain and 

Bernardo interior drain, each at different datum, used during periods of overflow or 

levee breaks. 

Drainage area.- 19,230 square miles (includes 2,940 square miles in closed basin in northern part of San Luis Valley, Colo.) 

Records available.- June 1936 to January 1939, October 1941 to September 1948. 

Extremes.- Maximum daily discharge during year, 11,700 second-feet May 29 (sum of 3 

channels); minimum daily, 29 second-feet Sept. 14. 

1936-39, 1941-48: Maximum discharge not determined, probably occurred Apr. 25, 

1942; maximum daily discharge, 19,600 second-feet Apr. 25, 1942; maximum gage height, 

6.90 feet Apr. 25, 1942; minimum daily discharge, 8 second-feet Aug. 21, Sept. 29, 

1946. 

Remarks.- Records fair except those for periods of ice effect or no gage-height record, 

and those above 1,500 second-feet, which are poor. Records represent total discharge 

of river and are a summation of the discharge in the channels that carry river water. 

No river water in auxiliary channels this year prior to May 28. Many diversions above 

station for irrigation. Records of suspended sediment loads for the water year 1948 

are given in Water-Supply Paper 1133. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

I 71 192 1,870 780 b500 1,190 1,480 2,510 2 59 705 2,040 750 .795 1,120 1,280 3,500 3 50 840 2,010 692 1,000 1,400 1,080 3,450 4 43 855 2,080 655 929 1,140 1,280 3,500 5 41 1,450 2,010 668 892 1,120 1,210 3,600 

6 44 2,010 2,010 720 840 1,020 984 3,450 7 57 1,650 1,940 668 840 874 1,170 3,080 8 56 1,740 1,900 692 795 692 1,350 2,950 9 '74 1,840 1,650 705 .825 810 1,380 3,450 10 122 1,940 1,480 705 840 984 1,400 3,220 

11 136 1,840 1,480 735 b800 1,060 1,620 2,830 12 160 1,870 1,560 780 b700 840 2,350 2,950 13 210 2,190 a1,350 810 b500 825 2,550 2,230 14 220 1,900 a1,300 825 430 780 2,120 1,500 15 371 1,980 1,500 692 517 780 a2,100 1,230 

16 1,100 1,900 1,590 668 .605 720 a2,000 1,530 17 421 2,120 1,230 642 655 720 2,270 1,280 18 348 2,150 1,140 720 855 692 3,080 966 19 268 1,800 855 735 948 855 3,260 1,770 

R R 

-a-. .mm,,1 m ..ww MNN NN ..0

.

..N .-. 

Minimum 

192 

692 

310 

430 

692 

984 

966 

600 

a550 50 90 516 44 55 457 44 38 446 67 39 480 82 42 

422 73 69 325 159 65 268 201 47 240 255 154 220 240 84 

200 192 58

ER,MW 

ELW

M!.H

H

M H 

182 173 59 195 187 36 204 151 29 190 148 30 

133 144 50 106 163 56 126 133 52 122 120 31 104 91 34 

187 75 32 173 80 31 185 65 55 198 57 59 217 41 34 

20 286 2,040 705 720 810 1,120 2,910 2,590 

21 215 1,870 705 735 825 ' 1,280 3,260 3,310 22 172 2,150 892 680 948 1,250 4,320 3,850 23 172 2,150 825 630 929 874 4,260 4,980 24 156 2,080 735 668 1,710 874 4,920 4,860 25 172 2,040 765 705 2,010 855 5,800 5,450 

26 286 2,010 705 668 2,010 1,170 4,560 6,980 157 35 46 27 245 2,040 765 8600 1,560 1,480 3,450 10,200 112 39 84 28 180 1,980 750 •310 1,560 1,530 3,360 160 56 220 109 79 104 68 110 95 57 170 

10,600 29 160 2,040 692 310 1,020 1,350 2,390 11,700 30 146 2,120 795 .b350 - 948 2,230 10,500 31 96 - 825 b400 - 1,170 - 8,260 

Second- Runoff in Month Maximum Mean foot-days acre-feet

October 6,137 1,100 November 53,492 2,190 41 198 12,170 

_ 

1,783 106,100 1,295 79,640 

680 492,100 

659 40,500 953 54,840 1,017 62,520 2,514 

4,267 149,600 

262,40C 

December 40,154 2,080 ----- -- Calendar year 1947 248,059 4,800 17

January 

February 20,418 

27,648 825 2,010 March 31,523 1,530 April 75,424 5,800 May 132,276 11,700 June 178,220 11,600 5,941 353,500 July 7,109 550 57 229 14,100 August 3,524 255 35 114 6,990 September 1,878 220 29 62.6 3,720 

Water year 1947-48 577,803 11,700 29 1,579 1,146,000 

•Winter discharge measurement made on this day. a Incomplete gage-height record; discharge computed on basis of available recorder trace, weather records, and records for main stem and tributary stations above and below. b Stage-discharge relation affected by ice. 
,

236 R10 GRANDE BASIN 

Rio Grande at San Acacia, N. Mex. 

Location.- Water-stage recorder, lat. 34°15'20", long. 106°53'30", in NEi sec. 1, T. 1 S., 

R. i W., 0.2 mile downstream from San Acacia diversion dam, half a mile east of San 

Acacia, and 2 miles downstream from Rio Salado. Datum of gage is 4,660.16 feet above 

mean sea level, datum of 1929.. 

Drainage area.- 26,770 square miles (includes 2,940 square miles in closed basin In northern part of San Luis Valley, Colo). 

Records available.- April 1936 to September 1948 in reports of Geological Survey. February to December 1925 and January 1926 to September 1927 (gage heights and discharge 

measurements only) in reports of State engineer. January 1941 to December 1948 in 

reports of Rio Grande Compact Commission. 

Average discharge.- 12 years (1936-48), 1,469 second-feet. 

Extremes.- Maximum discharge during year, 11,000 second-feet May 28 (gage height, 6.25 

feet); minimum daily, 1 second-foot Aug. 2, 3, 5, 6, Sept. 11, 14, 17, 18., 21-25. 

1936-48: Maximum discharge, 27,400 second-feet Aug. 5, 1936 (gage height, 8.35 feet, 

datum of gage, 4,662.56 feet), from rating curve extended above 18,000 second-feet by 

logarithmic plotting; no flow June 22 to July 7, 1946. 

Remarks.- Records good between 100 and 1,000 second-feet, others fair, except those for 

periods of no gage-height record, which are poor. Diversions above station for irrigation. Records of chemical analyses, water temperatures, and suspended sediment loads 

for the water year 1948 are given in Water-Supply Paper 1133. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

.,,,,-,..., F,I.,,JN 1...F,,,, F,1.....F,F,F,1.,.,,, 

l 1 

llti ttffiit iiMgKAF - ::1 

, 3, M UM

1 a 

2 9 

1,810 884 a350 1,060 1,250 2,350 8,F60 555 a.50 6 1,810 884 a1,100 1,330 1,180 3,270 7,670 407 1 4 3 8 1,930 826 896 1,160 1,020 3,650 7,320 338 1 4 9 1,820 716 981 1,300.1,260 3,020 8,390 346 2 3 1,960 684 1,110 1,160 1,440 3,340 8,580 353 1 2 

1,840 781 884 1,150 920 2,840 7,850 338 1 2 1,770 815 884 1,010 1,020 2,840 8,760 263 792 2 

4 

5 8

6 8 

7 7 

8 7 

9 4 

10 11 

1,760 770 694 872 969 2,670 9,340 191 a500 2 1,580 781 716 804 1,210 3,270 9,730 127 368 2 1,610 736 736 896 1,180 3,240 10,300 102 231 2 

1,510 726 705 837 1,440 2,630 9,530 74 106 1 1,470 792 674 957 2,350 2,650 8,390 70 90 2 a1,300 781 674 884 2,090 2,020 7,670 37 74 2 a1,200 770 527 860 2,220 1,510 7,320 52 208 1 

11 60

12 77

13 123 

14 244

15 221 1,410 781 603 642 1,950 1,330 6,490 47 131 2

16 1,320 1,540 781 61,3 705 1,880 1,330 6,650 42 32 2 

17 571 1,450 792 804 694 2,350 1,420 6,330 37 23 1 18 383 1,260 747 920 674 2,330 860 5,400 37 12 1 19 289 1,060 736 1,060 726 3,340 1,230 4,550 37 10 14 20 244 781 770 920 837 2,990 2,180 3,900 52 71 66 

21 244 747 684 826 1,260 2,690 2,860 4,020 69 11 1 22 186 736 726 908 1,220 3,650 3,410 2,820 60 8 1 736 663 994 1,180 4,020 4,420 2,450 52 8 1 726 684 1,360 920 4,420 5,260 2,470 126 7 1 716 642 1,510 736 4,970 5,260 2,090 all° 3 1 

747 694 1,710 860 4,650 6,980 1,760 217 2 432 

23 170

24 165

25 151

26 214

27 226 726 736 1,440 1,230 3,510 9,140 1,530 54 3 705 28 175 747 a600 1,350 1,350 2,800 9,530 1,720 42 3 514 29 131 736 a250 1,220 1,300 2,630 10,300 945 23 3 98 30 94 694 a280 - 1,020 2,090 10,700 603 13 7 32 31 119 770 a300 - 1,120 - 9,140 - 53 7 -

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 5,486 1,320 4 177 10,880 November 49,785 2,020 180 1,660 98,750 December 38,952 1,960 684 1,257 77,260 _ 

Calendar year 1947 253,119 4,830 2 693 502,000 - _ -

January 21,812 884 250 704 43,260 

February 27,169 1,710 350 937 53,890 March 30,754 1,350 642 992 61,000 

April 69,819 4,970 920 2,327 138,500 

May 124,650 10,700 860 4,021 247,200 June 173,338 10,300 603 5,778 343,800 July 4,324 555 13 139 8,580 August 2,746 792 1 88.6 5,450 September 1,907 705 1 63.6 3,780 

Water year 1947-48 550,742 10,700 1 1,505 1,092,000 

Peak discharge Cbase, 5,800 sec.-ft.).- May 28 (1 p.m.) 11,000 sec.-ft.; June 5 (1 a.m ) 9,930 

sec.-ft.; June 10 )5 p.m.) 10,500 sec.-ft. 

a No gage-height record; discharge computed on basis of available recorder trace, discharge 

measurements, weather records, and records for station at San Marcial. 
- - 

RIO GRANDE BASIN 237 

Rio Grande at San Marcial, N. Mex. 

Location.- Water-stage recorder, lat. 33°40'50", long. 106°59'15", in Pedrd Armendaris 

Grant 33, at Atchison, Topeka & Santa Fe Railway bridge, 1.1 miles downstream from San 

Marcial, Socorro County. Datum of gage is 4,455.38 feet above mean sea level (levels 

by International Boundary Commission). 

Drainage area.- 27,700 square miles (includes 8,940 square miles in closed basin in northern part of San Luis Valley, Colo.). 

Records available.- January 1895 to September 1948 in reports of Geological Survey. January 1931 to December 1946 in Water Bulletins of International Boundary Commission. 

Prior to January 1922 at site 0.3 mile upstream; January 1922 to February 1932 at highway bridge half a mile northeast of San Marcial and 1.8 miles above present site. 

Average discharge.- 52 years (1896-1948), 1,510 second-feet. 

Extremes.- Maximum discharge during year, 11,700 second-feet May 31; maximum gage height, 

16.80 feet June 12; no flow Oct. 8-10. 

1895-1947: Maximum discharge, about 50,000 second-feet Oct. 11, 1904; no flow at 

times. 

Remarks.- Records good except those for periods of no gage-height record, which are poor. 

Diversions above station for irrigation. Records of chemical analyses and suspended 

sediment loads for the water year 1948 are given in Water-Supply Paper 1133. 

Discharge, in second-feet, water year October 1947 to September 1948 R 

"

0

8 AWCAMM 0 

AWNNH ..00D-JOIM .-, 1-. ....NNNW NNNNW WWNNN

...... ..... 7 I 1 1. I A t tM8 : F 0tMHE N F ' 0 

MayO ff0 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. June July Aug. Sept. : 

'00

:

MiEhtt1ii

; tiVeg) htdaOh C t 

a23 57 1,720 650 154 1,200 983 660 37 11 4

1 

5, ,,

2 24 70 1,900 670 216 1,180 1,110 478 36 7

3 a21 392 1,810 710 340 1,180 1,090 320 48 6 

a18 487 1,840 828 886 1,260 934 M

280 34 7 236 33 6 

236 27 4 232 31 5 196 116 6 148 208 5 114 250 4 

83 200 5 62 139 6 47 127 6 46 99 6 41 204 6 

37 125 3 33 66 2 

35 66 2 

36 47 2 36 34 1 

36 32 2 35 31 2 43 29 4 52 27 5 56 25 4 

68 24 8 

92 23 39 139 19 245 

4 

5 14 495 1,860 720 1,890 1,180 946

WWWWW

6 al0 592 1,860 622 1,450 1,130 1,070

7 a5 986 1,860 700 1,100 1,050 946 0 1,080 1,790 680 910 910 839 0 1,420 1,660 710 970 784 886 a0 1,490 1,620 690 806 680 1,010 

8 

9 

10 

11 al 1,490 1,590 670 762 773 1,010 12 3 1,640 1,450 670 478 817 1,050 13 4 1,680 1,100 660 275 828 1,590 14 38 1,640 718 660 305 720 2,150 15 158 1,740 620 680 526 700 2,080 

16 180 1,740 674 700 862 660 1,850 17 652 1,770 1,180 680 700 631 1,770 

18 309 1,770 1,420 640 650 640 1,970 19 245 1,660 1,300 640 773 730 2,250 20 220 1,720 1,420 640 850 710 2,870 

21 222 1,700 1,300 670 874 740 2,820 22 147 1,860 958 690 720 1,010 2,990 23 140 1,900 776 650 690 1,170 3,680 

24 134 1,950 685 622 795 '1,100 4,180 25 114 1,840 696 550 1,100 828 4,790 

WW , ,,,. NNNWW ' 

26 87 1,770 685 550 1,680 751 5,370 27 123 1,740 620 442 1,930 795 5,110 28 128 1,620 630 414 1,660 1,060 3,860 

1-01

29 89 1,790 620 168 1,420 1,200 3,140 86 17 220 30 97 1,740 602 139 1,100 2,620 79 16 90 31 76 641 130 1,090 - 47 15 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 3,282 652 0 106 6,510 November 41,829 1,950 57 1,394 82,970 December 37,605 1,900 602 1,213 74,590 

Calendar year 1947 218,637 5,170 0 599 433,700 

January 18,645 828 130 601 36,980 February 25,772 1,930 154 889 51,120 March 28,607 1,260 631 923 56,740 April 66,964 5,370 839 2,232 132,800 May 110,750 11,000 784 3,573 219,700 June 182,110 11,000 850 6,070 361,200 July 4,089 660 33 132 8,110 August 2,185 250 15 70.5 4,330 September 719 245 1 24.0 1,430 

Mater year1947-48 522,557 11,000 0 1,428 1,036,000 

Peak discharge (base, 4,000 sec.-ft.- Apr. 26 (4:30 p.m.) 5,500 sec.-ft.; May 31 (12 30 p.m.) 11,700 sec.-ft.; June 12 (3 p.m.) 11, aec.-ft. a No gage-height record; discharge computed on basis of weather records and records for stations at San Acacia and near Bernardo. 
..

238 RIO GRANDE BASIN 

Rio Grande below Elephant Butte Dam, N. Mex. 

Location.- Water-stage recorder, lat. 33°09'05", long. 10712,10", in Ni sec. 25, T. 13 

S., H. 4 W. (projected), 3,800 feet downstream from Elephant Butte Dam in Pedro Armendaris Grant. 

Records available.- October 1916 to September 1948. 

Average discharge.- 32 years, 1,193 second-feet. 

Extremes.- Maximum daily discharge during year, 1,900 second-feet Mar. 24, Apr. 8, 13; 

minimum daily, 81 second-feet Nov. 9. 

1916-48: Maximum daily discharge, 8,220 second-feet May 22, 1942; no flow at times. 

Remarks.- Records good. Many diversions above station for irrigation. Flow regulated by 

Elephant Butte Reservoir (capacity, 2,197,600 acre-feet, see p. 

Cooperation.- Records furnished by Bureau of Reclamation. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. .......... g,8'88',8g '8'81)8g 8g8gO' oo g tO8r8 o

n"O2 

rrrrr ..... ...rrrr ..... 

""

. 8( JI H§ - Hi V3O 88:3 c;(8g8

1,420 

1,46C 

1,500 

1,210 

1,160 

1,440 

1,540 

1,540 

1,570 

1,600 

1,280 

1,660 

1,740 

1,670 

1,680 

1,740 

1,630 

1,380 

1,590 

1,720 

1,720 

1,740 

1,690 

1,520 920 

1,640 

1,710 

1,620 

1,700 

1,690 

1,630 

2202 20022 22200 880922022

20 022280 N ,JO NM NN/0,.a, WO CO hn,WWWWW

44444444444 

1,780 

1,260 

1,260 

1,240 901 

1,060 

1,240 

1,200 948 

805 

678 

361 

688 

597 

552 

603 

594 

471 

510 

491 

568 

480 

494 

418 

434 

323 

313 

453 

4C,4 457 

ct 53S O2S 8g8pi 2MHE,, 00 ..N 

0,,o0 ow 000 00000 00000 00000 00000

1 200 122 155 1,170 1,820

2 205 112 126 1,250 1,760 202 138 138 1,270 1,760 1,160 1,600 1,230 1,720 

1,120 1,780 975 1,790 1.140 1,900 1,420 1,820 1,510 1,860 

1,610 1,720 1,620 1,760 

3 

4 198 137 130

5 191 153 128

6 195 141 104

7 201 120 206 8 203 106 149

9 207 81 146

10 201 105 147

11 194 97 141

12 187 119 259

13 228 124 111 1,300 1,900 14 197 111 88 1,000 1,870 15 200 101 152 

16 201 93 179 17 191 180 164 18 198 399 177 19 177 401 183 

1,170 1,770 

1,310 1,750 1,340 1,740 1,350 1,640 1,090 1,680 20 220 129 178 1,300 1,740

21 205 130 159 1,320 1,690 22 190 133 208 1,590 1,740

23 205 156 183 1,850 1,630 241 130 113 1,900 1,660 

1,700 1,350 

1,670 1,510 1,670 1,680 897 1,700 1,640 1,680 1,740 1,650 1,700 

24 

25 571 147 92

26 205 150 120 27 112 108 143 28 140 120 86 29 123 116 150 30 141 89 138

31 128 144

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet

October 

November 6,257 

4,248 .-)71 401 112 

81 202 142 12,410 

8,430 

December 4,597 259 86 148 9,120 

Calendar year 1947 281,389 1,570 81 771 558,100 

January 

February 

March 

21,579 

37,595 

43,012 

1,290 

1,580 

1,900 

94 

925 

897 

696 1,296 

1,387 

42,800 

74,570 

85,310 

April 

May 

June 

July 

August 

September 

51,670 

48,206 

43,090 

48.110 

44,480 

21,643 

1,900 

1,750 

1,660 

1,740 

1,880 

1,780 

1,350 986 1,050 920 

890 

313 

1,722 

1,555 

1,436 

1,552 

1,435 721 

102,500 

95,620 

85,470 

95,420 

88,220 

42,930 

Water year 1947-48 374,487 1,900 81 1,023 742,800 
RIO GRANDE BASIN 239 

Rio Grande below Caballo Dam, N. Mex. 

Location.- Water-stage recorder, lat. 32°53'05", long. 107°17'30", in NEiSWI sec. 30, T. 

16 S., R. 4 W., 600 feet upstream from Bojarquez Bridge, 4,200 feet downstream from 

Caballo Dam, 1 1/3 miles upstream from Percha diversion dam, 3 miles northeast of 

Arrey, and 5 miles south of Caballo. Datum of gage is 4,140.9 feet above mean sea 

level. 

Records available.- January 1938 to September 1948. 

Extremes.- Maximum daily discharge during year, 3,030 second-feet June 24; minimum daily, 

1.4 second-feet Jan. 26. 

1938-48: Maximum daily discharge, 7,650 second-feet May 20, 1942; minimum daily, 

1.3 second-feet Nov. 18-21, Dec. 12-27, 1940. 

Remarks.- Records good. Considerable diversion above station for Irrigation. Bonita 

ditch, which diverts directly from dam (flow not included in river discharge), carried 

acre-feet as follows: October to February, 0; March, 195; April, 136; May, 156; June, 

306; July, 388; August, 245; September, 310; total, 1,736. Flow regulated by Caballo 

Reservoir (capacity, 345,900 acre-feet) and Elephant Butte Reservoir (capacity, 

2,197,600 acre-feet, survey of 1946). • 

Cooperation.- Records furnished by Bureau of Reclamation. 

Discharge, in second-feet, water year October 1947 to September1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

..... .......... N NNNN NNNNN NNN NN " 

I :+.V-.0 

NPP NLIn 

88888 88888 8q30 T, 88888 88888 58ng

2.0 1.8 1.8 1.9 t

00000 00000 00000 00004. ,...N NNcsiNN

OO MNW,W.N0WO N M O 0.0

MM WOM 00. 

1 2.1 2.4 1,440 1,120 2.,'70 2,480

2 1.9 1.8 1.8 1.9 2.2 2.4 1,530 968 2,780 2,330

3 1.6 1.8 1.8 1.9 2.3 2.4 1,520 613 2,500 2,150 1.7 1.8 1.8 1.8 2.4 1,490 704 2,510 2,050 1,280 1,120 2,470 2,070 

1,190 1,250 2,480 2,17C 1,080 1,270 2,311 2,560 1,060 1,200 2,470 2,810 

4 2.7 5 1.8 1.8 1.8 1.8 2.5 2.7

6 1.9 1.8 1.8 1.9 2.6 2.8 7 1.9 1.8 1.8 2.0 2.5 2.8 8 1.9 1.8 1.8 2.0 2.4 2.9 9 1.9 1.8 1.8 2.1 2.3 3.2 1,110 1,130 2,450 2,830 10 1.8 2.0 1.8 2.1 2.3 3.5 1,050 1,060 2,650 2,770

11 1.8 2.0 1.8 2.0 2.3 3.7 12 1.8 1.7 1.8 2.0 2.3 4.0 1,020 1,020 2,850 2,770 1,070 1,210 2,840 2,670 13 1.8 1.6 1.8 2.0 2.4 4.0 1,230 1,270 2,820 2,570 14 1.8 1.8 1.8 2.0 2.6 4.0 1,360 1,240 2,720 2,480 15 1.8 1.7 1.8 2.1 2.6 601 1,450 1,370 2,700 2,460

16 1.8 1.7 1.8 2.1 2.6 972 17 1.8 1.6 1.8 2.0 2.5 817 18 1.7 1.7 1.9 2.0 2.3 899 19 1.7 1.8 1.9 1.9 2.1 1,060 20 1.6 1.8 2.0 1.8 2.0 1,450 

21 1.8 1.9 2.0 1.8 2.0 1,500 22 1.8 3.9 2.0 1.8 2.1 1,670 23 1.7 1.9 2.0 1.8 2.1 1,980 24 1.7 1.9 2.1 1.7 2.2 2,600 25 1.6 1.9 2.1 1.5 2.2 2,470 

26 1.8 1.8 2.1 1.4 2.2 2,480 27 

28 

29 

30 

1.9 

2.0 

1.9 

1.9 

1.8 

1.8 

1.8 

1.8 

2.0 

2.0 

1.9 

1.9 

1.5 

1.6 

1.7 

1.8 

2.3 

2.3 

2.4 

-

2,520 

2,520 

2,64C 

2,650 31 1.8 1.9 2.0 - 2,660 

1,510 1,840 2,690 2,410 1,470 2,170 2,750 2,230 1,470 2,370 2,680 1,950 1,460 2,840 2,710 1,900 1,360 2,990 2,720 1,870 

1,410 2,820 2,650 1.980 1,420 2,820 2,510 2,160 1,420 2,790 2,420 2,210 1,410 3,030 2,200 2,260 1,290 2,950 2,020 2,420 

1,100 2,850 2,260 2,540 1,020 2,850 2,190 2,460 978 2,830 1,660 2,510 1,080 2,820 1,690 2,590 1,140 2,750 1,890 2,350 1,100 - 2,390 2,050 

Month Secondfoot-days Maximum Minimum Mean Runoff in 

acre-feet 

October 55.9 2.0 1.6 1.80 111 November 54.1 2.0 1.6 1.80 107 December 58.4 2.1 1.8 1.88 116 

Calendar year 1947 365,481.6 2,810 1.6 1,001 724,900 - -- - - - - - January 

February 

March 

57,9 

67.1 31,192.5 

2.1 

2.6 2,660 

1.4 

2.0 

2.4 

1.87 

2.31 1,006 

115 

133 61,870 April 

May 

June 

July 

60,440 

39,518 

57,265 

76,670 

2,850 

1,530 

3,030 

2,850 

1,050 978 

61.5 1,660 

2,015 

1,275 

1,909 

2,473 

119,900 

78,380 

113,600 

152,100 August 

September 73,060 

25,458.7 2,830 1,970 1,870 2.4 2,357 849 144,900 

52,500 

Water year 1947-48 363,897.6 3,030 1.4 994 721,800 
240 RIO GRANDE BASIN 

Reservoirs in Rio Grande Basin 

Elephant Butte Reservoir.- Water-stage recorder, lat. 33°09.15", long. 107°11.30", at dam 

on Rio Grande in NWII sec. 30, T. 13 S., R. 3 W. (surveys by Bureau of Reclamation), 

1 mile west of Elephant Butte, N. Mex., and 4 miles northeast of Hot Springs. Datum of 

gage is 43.3 feet above mean sea level. Records available, January 1940 to September 

1948. Maximum daily contents during year, 762,000 acre-feet June 25-30; maximum gage 

height, 4,349.22 June 27; minimum daily contents, 309,800 acre-feet Oct. 26 to Nov. 

minimum gage height, 4,313.08 feet Nov. 5. Maximum daily contents during period 

1940-48, 2,303,000 acre-feet June 16-18, 1942 (gage height, 4,409.19 feet); minimum 

daily, 298,500 acre-feet Aug. 22, 1947 (gage height, 4,311.91 feet). 

Reservoir is formed by concrete dam; storage began Jan. 6, 1915; dam completed May 

13, 1916. Capacity, 2,197,600 acre-feet between gage heights 4,231.5 feet (sill of 

lower outlet gate) and 4,407.0 feet (spillway crest). No dead storage, survey of 1946. 

Figures given herein represent usable contents. Water is used for power development 

and irrigation on Rio Grande project of Bureau of Reclamation. Contents given herein 

are computed from mean daily gage heights. Gage-height record and capacity table • 

furnished by Bureau of Reclamation. 

Caballo Reservoir.- Water-stage recorder, lat. 32°53.45", long. 107°17.30", at dam on Rio 

Grande, in :,E11,6411: sec. 19, T. 16 S., R. 4 W., 0.5 mile downstream from mouth of Apache 

Canyon, 0.9 mile upstream from Eojarquez Bridge, 2 miles upstream from Percha diversion 

dam, 3.5 miles northeast of Arrey, and 4.5 miles south of Caballo, N. Mex. Datum of 

gage is 43.3 feet above mean sea level. Records available, February 1938 to September 

1948. Maximum daily contents during year, 188,400 acre-feet Mar. 19, 20 (gage height, 

4,165.65 feet); minimum daily, 11,200 acre-feet Sept. 18 (gage height, 4,125.18 feet). 

Maximum daily contents during period 1938-48, 347,000 acre-feet Mar. 4, 1942 (gage 

height, 4,182.06 feet); minimum daily, 118 acre-feet Oct. 14, 1938 (gage height, 4,108.1 

feet). 

Reservoir is formed by earth-fill dam; storage began Feb. 8, 1938; dam completed 

Sept. 19, 1938. Capacity, 345,900 acre-feet between gage heights, 4,104 feet (bottom 

of tunnel entrance to gates) and 4,182 feet (gage height above which spillway gates 

operate automatically). No dead storage. Figures given herein represent usable contents. Water released from Elephant Butte Reservoir for power development is stored 

in Caballo Reservoir and released for irrigation on Rio Grande project of Bureau of 

Reclamation. Contents given herein are computed from mean daily gage heights. 

Gage-height record and capacity table furnished by Bureau of Reclamation. 

Carson Reservoir.- Water-stage recorder, lat. 36°25., long. 105°50., in NWi sec. 12, T. 

25 N., R. iU h., on Aguaje de la Petaca, 44 miles northwest of Carson, Taos County, N. 

Mex. Records available, January 1940 to September 1948. Maximum daily contents during 

year, 1,760 acre-feet Apr. 17 (gage height, 29.1 feet); no storage for extended periods. 

Maximum contents during period 1940-48, 3,620 acre-feet May 6, 1941 (gage height, 38.5 

feet); no storage for extended periods. 

Reservoir is formed by earth-fill dam, rip-rap faced, completed in 1935. Capacity, 

5,684 acre-feet between gage heights 8.0 feet (sill of outlet gate) and 45 feet (crest 

of spillway). Dead storage negligible. Water used for irrigation in Carson Irrigation 

District near Carson, N. Mex. Gage heights and contents at 12 p.m. 

El Vado Reservoir.- Water-stage recorder (records stages above spillway floor only) and 

inclined staff' gage, lat. 36°35,45", long. 106°43,55", at left end of dam, on Rio Chama, 

in SEi sec. 4, T. 27 N., R. 2 E. (projected), 2 miles downstream from old town of El 

Vado and 13 miles southwest of Tierra Amarilla, N. Mex. Datum of gage is 9.565 feet 

above mean sea level, datum of 1929. Records available, January 1935 to September 

1948. Maximum daily contents during year, 204,900 acre-feet June 4, 5 (gage height, 

6,904.2 feet); minimum daily, 5,430 acre-feet Dec. 17-27 (gage height, 6,777.4 feet). 

Maximum daily contents and gage height during period 1935-48, those of June 4, 5, 1948; 

minimum daily, 56 acre-feet Jan. 1, 1935. 

Reservoir is formed by rock-fill dam, steel-faced; storage began in January 1935. 

Capacity, 197,500 acre-feet between gage heights 6,740.0 feet (bottom of trash rack) 

and 6,902.0 feet (top of spillway gate). Dead storage unknown. Prior to Jan. 1, 1947, 

figures represent usable contents computed from capacity table furnished by Middle Rio 

Grande Conservancy District In 1940; after Jan. 1, 1947, figures represent usable contents computed from capacity table based on survey of 1944 by Corps of Engineers. 

Water is used for irrigation by Middle Rio Grande Conservancy District. Gage read 

daily about 7:30 a.m. Continuous recorder registers gage heights above 6,879:3 feet 

(floor of spillway). Contents given herein are those at 7:30 a.m. Staff-gage readings 

furnished by Middle Rio Grande Conservancy District. 

McClure Reservoir.- Water-stage recorder, lat. 35°41,15", long. 105°50, 10", in NEI'SWIli sec. 

14, T. it N., H. 10 E., at McClure Dam on Santa Fe Creek, 2i miles upstream from 

Nichols Reservoir and 6 miles east of Santa Fe, N. Mex. Datum of gage is 7,768.32 

above mean sea level and 166.1 feet above Public Service Co. of New Mexico assumed 

datum. Records available, October 1947 to September 1948. Maximum daily contents 

during year, 2,670 acre-feet June 21 to July 2 (gage height, 97.2 feet); minimum daily, 

29 acre-feet Oct. 13, 14; minimum gage height, 21.4 feet Oct. 13. 

Reservoir is formed by earth-fill dam. Capacity, 2,614 acre-feet between gage 

heights -0.4 foot (bottom of lowest sluice gate) and 96.4 feet (crest of spillway). 

Dead storage negligible. Figures given herein represent total contents at 12 p.m. 

Water is used for municipal consumption of city of Santa Fe. Capacity table computed 

from rating table furnished by Public Service Co. of New Mexico. 
RIO GRANDE BASIN 241 

Reservoirs in Rio Grande Basin--Continued 

Nichols Reservoir.- Water-stage recorder, lat. 35°41'20", long. 105°52'40", at dam on 

Santa Fe creek, in 6NE1 sec. 21, T. 17 N., R. 10 E., three-quarters of a mile upstream 

from lower storage reservoir, 6 miles downstream from upper storage reservoir of Public 

Service Co. of New Mexico, and 31 miles east of Santa Fe, N. Mex. Datum of gage, is 

7,313.2 feet above mean sea level, datum of 1929. Records available, December 1942 to 

September 1948. Maximum daily contents during year, 776 acre-feet June 8 (gage height, 

170.0 feet); minimum daily, 16 acre-feet Feb. 1-19, but may have been less during period 

Jan. 13 to Feb. 16. Maximum daily contents 1943-48, 830 acre-feet May 30 to June 1, 

1947 (gage height, 171.6 feet); minimum daily, 16 acre-feet Feb. 11 to Mar. 10, 1944, 

Feb. 1-19, 1948. 

Reservoir is formed by earth-fill dam. Storage began Mar. 16, 1943. Capacity, 796 

acre-feet between gage heights 121.2 fe.et (bottom of lower operational gate) and 171.0 

feet (top of flashboards in spillway). Dead storage, 14 acre-feet. Figures given herein represent total contents. Water is used for municipal consumption of city of Santa 

Fe. Contents given herein are those for 12 p.m. Capacity table computed from survey 

furnished by Public Service Co. of New Mexico. 

Alamogordo Reservoir.- Water-stage recorder, lat. 34°36,30", long. 104°23'10", in SIC-1 sec. 

34, T. 5 N., H. 14 E., at dam on Pecos River, 5 miles northeast of Guadalupe, 12 miles 

northwest of Fort Sumner, N. Mex. Datum of gage is at mean sea level, Bureau of Reclamation datum. Drainage area, 4,390 square miles (contributing area). Records available, January 1939 to September 1948. Maximum daily contents during year, 39,410 acrefeet July 10-12 (elevation, 4,245.00 feet); minimum daily, 1,570 acre-feet Apr. 26 (elevation, 4,205.00 feet). Maximum daily contents during period 1939-48, 149,400 acre-feet 

Apr. 19, 20, 1942 (elevation, 4,275.30 feet); minimum daily, 1,570 acre-feet July 28, 

1946, Apr. 26, 1948 (elevation, 4,205.00 feet). 

Reservoir is formed by Alamorgordo Dam; completed and storage began 1;; 1938. Total 

capacity, 132,200 acre-feet between elevations 4,200.0 feet (sill of outlet gates) and 

4,275.0 feet (top of spillway gates) above mean sea level. Dead storage, 284 acre-feet. 

Figures given herein represent usable contents. Contents computed from elevations at 

8 a.m. Elevation record furnished by Bureau of Reclamation. Figures represent total 

contents computed from capacity table based on survey of March 1944 by Corps of 

Engineers. 

Lake McMillan.- Staff gage, lat. 32°35'45", long. 104°20'55", in SE1 sec. 2, T. 20 S., R. 

25 E., at dam on Pecos River; 3 miles southeast of Lakewood, N. Mex. Datum of gage is 

3,241.6 feet above mean sea level, Bureau of Reclamation datum. Drainage area, 16,990 

square miles (contributing area). Records available, January 1939 to September 1948. 

Maximum daily contents during year, 22,950 acre-feet June 9-11 (gage height, 22.85 

feet); no storage for extended periods. Maximum daily contents during period 1939-48, 

68,500 acre-feet Sept. 26, 1941 (gage height, 29.95 feet); no storage at times In 

1944-48. 

Lake is formed by McMillan Dam, completed and storage began in 1906. Capacity, 

38,660 acre-feet between gage heights 0.0 foot (sill of outlet gate) and 26.1 feet 

(crest of spillway 1). No dead storage. Figures given herein represent usable contents. Water is used for irrigation on Carlsbad project of Bureau of Reclamation. Contents computed from daily readings at 6 a.m. Gage-height record and capacity table 

furnished by Bureau of Reclamation. 

Lake Avalon.- Staff gage, lat. 32°29'25", long. 104°15'00", in SI4, sec. 12, T. 21 S., R. 

25 h., at dam on Pecos River, 5 miles north of Carlsbad, N. Mex. Datum of gage is 

3,157.0 feet above mean sea level, Bureau of Reclamation datum. Drainage area, 18,070 

square miles (contributing area). Records available, January 1939 to September 1948. 

Maximum daily contents during Srear, 6,150 acre-feet June 1 (gage height, 20.55 feet); 

minimum daily, 58 acre-feet May 23 (gage height, 7,60 feet). Maximum daily contents 

during period 1939-48, 11,000 acre-feet May 22, 1941 (gage height, 25.0 feet); no storage at times when natural flow was passing through reservoir. 

Lake is formed by Avalon Dam; storage began in 1906. Capacity, 6,600 acre-feet 

between gage heights 0.0 foot (sill of outlet gates) and 21.0 feet (crest of spillway 

1). No dead storage. Figures given herein represent usable contents and are computed 

from once-daily staff readings at 6 a.m. Water is used for irrigation on Carlsbad project of Bureau of Reclamation who furnishes gage-height record and contents table. 

Red Bluff Reservoir.- Staff gage, lat. 31°54'05", long. 103°54'40", at right end of Red 

Bluff Dam on Fecos River, 3 miles upstream from Salt (Screwbean) Draw, 4.5 miles north 

of Orla, Reeves County, Tex. Datum of gage is 0.30 foot below mean sea level, datum of 

1929. Subtract 0.30 foot from elevations given herein to obtain elevation above mean 

sea level, datum of 1929. Contributing drainage area, 20,720 square miles. Records 

available, February 1937 to September 1948. Maximum contents observed during year, 

58,600 acre-feet.June 4, (elevation, 2,806.6 feet); minimum observed, 11,080 acre-feet 

May 13 (elevation, 2,781.4 feet). Maximum contents observed during period 1937-48, 

352,000 acre-feet Sept. 27, 28, 1941 (elevation, 2,846.2 feet, observed on staff gage 

at service spillway, affected by variable draw-down due to flow through taintor gates); 

minimum observed, that of May 13, 1948. 

Reservoir is formed by earth-fill dam, rock-faced; storage began in 1936; dam completed early in 1937. Capacity, 307,000 acre-feet between elevations 2,764.0 feet 

(penstock intake sill) and 2,842.0 feet (top of taintor gates). Dead storage, 3,000 

acre-feet. Figures given herein represent total contents. Water is used for power 

development and for irrigation from Mentone to Grandfalls. Contents computed from intermittent gage readings Elevation record and capacity curve furnished by Red Bluff 

Water Power Control District. 
		

		 								

		

		

		

		

		

		

		

		

		

		

_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

RIO GRANDE BASIN 242 

Monthly gage height and contents, of reservoirs in Rio Grande Basin, water year October 1947 to September 1948-Continued 

Elephant Butte Reservoir Caballo Reservoir 

Elevation Change In Elevation Change in Date or gage Contents contents Contents or gage contents height (acre- during month height (acre- during montb, (feet) feet) (acre-feet) (feet) feet) (acre-feet., 

Sept.30 4,313.85 316,900 _ 4,126.28 12,980 - Oct. 31 4,313.12 309,80„, -7,100 4,133.74 28,780 +15,800 Nov. 30 4,318.81 76.7,300 +56,500 4,137.99 40,270 +11,490 Dec. 31 4,325.11 475,400 +69,100 4,141.58 51,410 +11,140 

Calendar year 1947 - -141,90C - - -153,090 

Jan. 31 4,325.12 435,400 ( 4,150.59 88,450 +37,040 Feb. 29 4,323.51 417,200 -18,200 4,161.20 154,200 +65,75C Mar. 31 4,321.51 395,100 -22,100 4,163.74 173,600 +19,400 Apr. 30 4,322.79 409,400 +14,30:: 4,160.89 151,900 -21,700 May 31 4,329.23 484,630 +75,20, 4,162.31 162,600 +10,700 June 30 4,749.19 762,000 .277,400 4,158.10 132,507 -30,100 July 31 4,343.39 673,600 -88,400 4,148.47 77,270 -55,230 Aug. 31 4,337.34 588,70 -84,900 4,132.79 26,500 -50,770 Sept.30 4,333.89 543,30- -45,700 4,131.61 23,700 -2,800 

Water year 1947-48 - +226,107 - +10,720 

Date :.arson Reservoir El Vado Reservoir 

Sept.30 - 6,871.9 115,300 - Oct. 31 0 6,867.1 105,200 -10,100 Nov. 30 - 0 6,820.9 36,290 -68,910 Dec. 31 0 6,777.5 5,48C -30,810 

Calendar year 1947 0_ - s -14,520 

Jan. 31 - 0 6,779.3 5,600 +340 Feb. 29 9.8 :A +24 - a7,140 +1,320 Mar. 71 16.4 317 +289 6,803.5 20,750 +13,610 Apr. 30 20.8 695 +382 6,861.4 94,200 +73,450 May 31 3 -695 6,903.1 201,200 +107,000 June 30 - 0 6,902.6 199,500 -1,700 „ July 31 - 0 6,896.9 181,500 -18,000 Aug 31 - 0 6,888.0 155,400 -26,100 Sept.30 - C 6,883.3 142,700 -12,700 

Water year 1947-48 - - 0 - +27,400 

Date McClure Reservoir Nichols Reservoir 

Sept.30 - a187 - 147.5 240 - Oct. 31 29.3 76 -111 143.9 188 -52 Nov. 30 34.. 124 +48 a54 -134 Dec. 31 37.11 167 +43 123.9 22 -32 

Calendar year 1947 - - - - - -651 

Jan. 31 37.6 168 +1 - al7 -5 Feb. 29 38.6 183 +15 123.9 22 +5 Mar. 31 42.7 250 +67 139.6 135 +113 Apr. 30 69.3 1,030 +780 163.2 577 +442 May 31 g93.5 2,410 +1,380 166.3 664 +87 June 30 97.2 2,670 +260 168.9 743 +79 July 31 96.3 2,610 -60 160.9 515 -228 Aug. 31 92.8 2,360 -250 160.5 504 -11 Sept.30 86.1 1,920 -440 16.1.0 571 +67 

Water year 1547-48 - +1,733 - +331 

Obtained by using 20,000 A. F. (from revised table) for Dec. 31, 1946. a No gage-height record; contents estimated or based on contents for adjacent days. 

g From graph based on once daily staff gage reading by employee of Public Service Co. of N. Mex. 
		

		

		

		

		

		

		

		

		

		

RIO GRANDE BASIN 243 

Monthly gage height and contents, of reservoirs in Rio Grande Basin, water year October 1947 to September 1948--Continued 

Alamagordo Reservoir Lake McMillar 

Elevation Change In Elevation Change In Date or gage Contents contents or gage Contents contents height (acre- during month height (acre- d...ring month (feet) feet) (acre-feet) (feet) feet) (acre-feet) 

Sept.30 4,218.10 8,610 - 0.0 Oct. 31 4,219.10 9,280 +670 7.0 ,. 0 Nov 30 4,225.00 13,820 +4,540 15.0 866 +866 Dec. 31 4,231.65 20,410 +6,590 16.4 2,760 +1,894 

Calendar year 1947 - - -18.7:7 - - -6,150 

Jan. 31 4,236.20 25,900 +5,490 16.5 2,950 +190 Feb. 29 4,240.50 31,930 +6,03: 16.6 3,140 +190 Mar. 31 4,243.60 36,940 +5,010 15.5 1,390 -1,753 Apr. 30 4,207.00 2,380 -34,560 17.6 5,370 +3,980 May 31 4,227.90 16,490 +14,110 13.5 140 -5,227 June 30 4,243.55 36,860 +20,370 21.1 16,150 +16,007 July 31 4,224.50 13,380 -23,480 18.0 6,390 -9,760 Aug. 31 4,216.15 7,360 -6,020 17.2 4,430 -1,960 Sept.30 4,214.90 6,590 -770 0.0 0 -4,430 

Water year 1947-48 -_ -2,020 - 0

Date Lake Avalon Red Bluff Reservoir 

Sept.30 11.75 430 2,784.2 13,400 - Oct. 31 10.85 288 -142 2,787.4 17,320 4-3,620 Nov. 30 13.25 838 +550 2,790.5 21,100 +4,380 Dec. 31 14.95 1,670 +832 2,793.5 25,750 +4,65, 

Calendar year 1947 - - -3,760 - - -37,050 

Jan. 31 17.05 3,100 41,430 2,795.9 30,110 .4,060 Feb. 29 19.20 4,980 42.790 2,798.0 34,400 +4,293 Mar. 31 19.70 5,340 +460 - a36,380 +1,980 Apr. 30 14.35 1,330 -4,010 2,785.8 15,080 -21,300 May 31 17,75 3,650 +2,320 2,786.7 16,140 +1,060 June 30 17.00 3,060 -590 2,797.3 32,930 +16,790 July 31 14.30 1,300 -1,760 2,790.5 21,100 -11,830 tug. 1 15.00 1,700 4400 2,784.5 13,700 -7,400 Sept.30 16.95 3,030 +1,330 2,787.1 16,630 +2,930 

Water year 1947-48 - +2,600 - - +3,230

a No gage-height record; contents estimated or based on contents for adjacent Jays. 
244 RIO GRANDE BASIN 

Transmountain diversions from Colorado River Basin to Rio Grande Basin 

The following seven ditches, which are equipped with water-stage recorders, divert 

water from tributaries of Colorado River to tributaries of the Rio Grande in Colorado. 

Records furnished by State engineer. 

Piedra Pass ditch diverts water from Piedra River to a tributary of the Rio Grande in 

sec. 4, T. 38 N., R. 1 W. 

Tabor ditch diverts water from tributaries of Cebolla Creek through Spring Creek Pass 

to tributary of Clear Creek in sec. 2, T. 42 N., R. 3 W. 

Squaw Pass ditch diverts water from tributaries of Williams Creek through Squaw Pass 

to tributary of Rio Grande in sec. 13, T. 39 N., R. 3 W. 

Treasure Pass ditch diverts water from Wolf Creek through Wolf Creek Pass to tributary 

of South Fork Ric Grande. 

Fuchs ditch diverts water from North Fork Los Pinos River through Weminuche Creek Pas2 

to Weminuche Creek (tributary of Rio Grande) in sec. 33, T. 40 N., R. 5 W. 

RQber-Lohr ditch diverts water from Rincon La Vaca Creek (tributary to Los Pinos 

River) through Weminuche Pass to Weminuche Creek (tributary of Rio Grande) in sec. 33, T. 

40 N., R. 5 W. 

Tarbell ditch diverts water from tributary of Cochetopa Creek to tributary of Saguache 

Creek in about sec. 17, T. 43 N., R. 2 E. 

Inflow from transmountain diversions, in acre-feet, water year October 1947 to September 1948 

Month 

Piedra 

Pass 

ditch 

Tabor 

ditch 

Squaw 

Pass 

ditch 

Treasure Pass 

ditch 

Fuchs 

ditch 

RaberLohr 

ditch 

Tarbell 

ditch Total 

October 0 0 0 0 0 0 0 0 

November 0 0 0 0 0 0 0 0 

December 0 0 0 0 0 0 0 0 

January 

February 

March 

0 

0 

0 

0' 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

April 

May 

June 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

36 

0 

0 

0 

0 

0 

36 

July 

August 

September 

0 

0 

0 

138 

25 

0 

97 

48 

0 

29 

0 

0 

181 

96 

42 

704 

565 

288 

0 

0 

0 

1,150 734 

330 

Water year 1947-48 0 163 145 29 f 319 1,590 0 2,250 
RIO GRANDE BASIN 245 

Clear Creek below Continental Reservoir, Colo. 

Location.- Water-stage recorder and Parshall flume, lat. 37°53', long. 107°11', in sec. 22, 

T. 42 N., R. 3 W., 1,000 feet downstream from Continental Reservoir and 15 miles west 

of Creede. 

Drainage area.- 51.7 square miles. 

Records available.- October 1933 to September 1948 in reports of Geological Survey. May 

1929 to September 1948 in reports of State engineer. 

Average discharge.- 19 years, 32.8 second-feet. 

Extremes.- Maximum discharge during year, 329 second-feet July 21 (gage height, 3.68 

feet, from recorded range in stage); minimum daily, 2.0 second-feet Nov. 19 to May 2. 

1929-48: Maximum discharge, that of July 21, 1948; no flow June 22, 23, 1935. 

Remarks.- Records good above 50 second-feet and fair below except those for Mar. 18 to 

May which are poor. Flow regulated by Continental Reservoir (capacity, 26,700 acrefeet). 

Revisions.- W 1008: Drainage area. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. :2222222WWWWWW2WWW NNNN

Nn ,1NNro,o. 

00000 00000 00 

r_f"""" """""""P"" """"" """"" """"" 

o..0000 00000 00000 00000 00000 00000

0000

000000000000000000000000000 cZ o c.,4o; ,Z 40(, c,; c. 0;(.;44s cZ cZ (Z o] N0Ni c.4cs; o] cs4 (.; 

,,""P`) """"" """"" """'" """""'"" 000000000000000000000000 00000

1 00000 00000 0000000000 00000 00000 c.; 44 ,-Z o; (.;44440; 4 (.; 0;4csi4 4c.; Nc,; c4 0:14c.;csi cZ 4 o4:' 

0000

00000000000000000000

0000000 

cs; oc.;N N c, c4 4(.;4,.4(.,.;04c.; c.;4c, (4 044 00cZ o 0; 

19 2.0 81 13 274 14 2 19 2.0 90 74 262 14 3 17 4 20 5 20 

6 19 7 19 

32 50 76 256 14 50 11 70 250 16 50 12 66 258 15 

51 12 71 273 16 1,0 12 74 295 16 8 19 43 13 61 295 15 9 20 40 29 48 293 14 10 20 

11 22 12 22 13 20 14 20 15 20 

16 20 17 20 18 20 19 20 20 20 

21 19 22 19 23 19 24 19 25 19 

26 19 27 19 28 19 29 19 30 19 31 19 

41 55 43 287 14 

40 68 40 266 15 40 73 77 266 14 40 74 109 266 12 40 73 168 266 9.0 40 136 223 263 9.4 

24 170 285 263 9.0 23 172 310 274 9.8 22 165 310 286 11 28 147 315 289 10 38 130 315 286 9.0 

103 125 320 275 9.4 225 127 320 260 11 237 107 320 253 10 237 81 320 241 10 239 71 320 101 12 

238 73 300 19 11 232 73 282 15 9.8 218 74 305 16 9.4 218 73 304 14 11 154 76 307 14 9.4 59 287 14 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet

October 

November 605 

479.0 22 27 17 2.0 19.5 

16.0 1,200 950 December 62.0 2.0 2.0 2.00 123 - Calendar year 1947 14,936.9 281 •- 40.9 29,640 

January 62.0 2.0 2.0 2.00 123 February 

March 58 0 

62.0 2.0 

2.0 2.0 

2.0 2.00 2.00 115 123 April 

May 

June 

July 

August 

September 

60.0 2,856.0 

2,453 

6,193 

6,690 359.2 

2.0 239 

172 

320 

295 

16 

2.0 

2.0 

11 

40 

14 

9.0 

2.00 

92.1 

81.8 

200 

216 

12.0 

119 5,660 

4,870 

12,280 

13,270 712 

Water year 1947-48 19,939.2 320 2.0 54.5 39,540 

Note.- No gage-height record Oct. 14-29, Nov. 12 to May 2, May 12-15, July 16-26; discharge com- putaZn basis of gate openings at Continental Reservoir and recorded range in stage. 
		

246 RIO GRANDE BASIN 

Goose Creek near Wagon Wheel Gap, Colo. 

Location.- Water-stage recorder, lat. 37°41, , long. 106°50, , in NW,i. sec. 26, T. 40 N., R. 

1 1s., if miles downstream from Roaring Fork and 6 miles south of Wagon Wheel Gap. 

Drainage area.- 53.6 square miles. 

Records available.- October 1939 to September 1948 (no winter records 1942-47). October 

19'24 to July Ig26 at site 1 mile upstream. 

Extremes.- Maximum discharge during year, 887 second-feet June 3 (gage height, 2.59 

feet); minimum daily not determined, occurred during period of no gage-height record. 

1924-26, 1939-48: Maximum discharge, that of June 3, 1948; maximum gage height, 

2.99 feet June 23, 1941; minimum daily discharge recorded, 7.8 second-feet Apr. 1, 5, 

6, 1945. 

Remarks.- Records good except those for period of no gage-height record, which are poor. 

Lake Humphreys (capacity, 842 acre-feet) has slight effect on flow. 

Revisions.- W 1008: Drainage area. 

Discharge, in second-feet, water year October 1947 to September 1946 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

i 1 45 36 's 32 162 450 217 54 27 

2 41 36 35 153 540 221 57 26 3 40 34 42 159 730 198 58 26 4 38 30 43 175 629 191 61 26 5 37 31 44 187 516 202 64 26 

6 36 28 44 202 478 191 57 26 7 34 23 45 221 435 181 54 26 a 34 37 46 198 435 168 54 26 9 34 36 51 162 469 153 49 26 10 33 37 56 134 507 145 44 26 

11 38 36 64 104 587 136 45 26 12 46 37 60 98 587 126 45 26 13 61 37 54 106 556 121 44 26 14 79 35 66 156 516 111 43 25 15 67 30 79 214 442 109 38 25 

16 64 32 18 ) 15 14 > 20 90 255 412 100 35 25 17 62 31 112 278 398 96 34 25 18 61 30 139 324 364 94 35 25 19 61 29 132 710 364 109 36 25 20 62 25 143 618 298 109 35 25 

21 65 26 150 018 278 94 32 25 22 62 25 132 566 242 87 35 25 23 58 24 104 526 198 89 39 25 24 54 25 82 435 181 96 34 25 25 47 27 68 382 178 102 36 25 

26 45 25 64 360 187 87 33 25 27 44 26 72 355 217 76 30 25 28 41 25 94 350 184 72 29 25 29 40 24 131 430 191 69 27 25 30 41 22 153 480 206 62 27 25 31 37 - / 500 58 29 

Month Secondfoot-days Maximum Minimum Mean Runoff in 

acre-feet 

October 

November 

December 

1,507 899 

558 

79 

37 33 22 48.6 30.0 

18 

2,990 

1,780 

1,110 

Calendar year - - -

January 465 - - 15 922 February 

March 406 

620 -

- 14 

20 805 1,230 April 

May 

June 

2,427 

9,618 

11,775 

153 

710 

730 

32 

98 

178 

80.9 

310 

392 

4,810 

19,080 

23,360 July 

August 

September 

3,870 

1,293 764 

221 

64 

27 

58 

27 

25 

125 

41.7 

25.5 

7,680 

2,560 

1,520 

Water year 1947-48 34,202 730 93.4 67,850 

Peak discharge base, 200 sec.-ft..- May 6 (8 p.m.) 283 sec.-ft.; May 20 (9 p.m.) 822 sec.-ft.; ) June 3 (5 p.m.) 8 7 sec.-ft.; June 11 (11 p.m.) 698 sec.-ft. Note.- No gage-height record Oct. 30, 31, Nov. 8 to Apr. 27, May 26 to June 3; discharge computed on—MTs of weather records and records for South Fork Rio Grande at South Fork. 
24" RIO GRANDE BASIN 

South Fork Rio Grande at South Fork, Colo. 

Location.- Water-stage recorder, lat. 37°40', long. 106°39', in sec. 4, T. 39 h., R. 3 

8., 11 miles upstream from mouth and miles southwest of village of South Fork. 

Datum of gage is 8,221.79 feet above mean sea level, datum of 1929. 

Drainage area.- 216 square miles. 

Records available.- August 1910 to September 1913 and May 1936 to September 1948 in reports or Geological Survey. August 1910 to September 1922 and May 1936 to September 

1948 in reports of State engineer. Records for 1910-22 at site 1 mile downstream. 

Average discharge.- 24 years (1910-22, 1936-48), 233 second-feet. 

Extremes.- Maximum discharge during year, 3,080 second-feet June 3 (gage height, 6.50 

feet), from rating curve extended above 1,800 second-feet; minimum daily, 27 secondfe,,,t Jan. 28. 

1910-22, 1936-48: Maximum discharge, 8,000 second-feet Oct. 5, 1911 (gage height, 

9.7 feet, from floodmarks, present site and datum), from rating curve extended above 

1,500 second-feet; minimum daily, 20 second-feet Jan. 1, 2, 8, 17, 23-25, 1915, 

Dec. 20, 1937. 

Remarks.- Records excellent except those for periods of ice effect or no gage-height 

record, which are fair. A few small diversions above station for irrigation and 

several small storage reservoirs. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. i-,'HU WiPcoci ,. .nH 

MH.

MEE -,' .-%-.7,:,:r:,:_%:,:,:,:, _:,;,:,: 

O tAN ~ (HiiI Nnin :i'UH '.' ; ' ,;-:?)3,U,.. ,3 i.iran?; :,:,:_7, 

614 112 578 112 55 542 112 51 512 110 50 498 180 47 

474 146 44 456 127 42 414 127 43 372 112 50 339 98 51 

314 86 18 375 92 48 418 100 43 384 90 41 351 80 34 

322 73 34 290 73 39 277 80 36 285 88 41 270 80 44 

208 72 40 

175 82 38 1'67 82 38 180 74 40 

1 94 100 60 42 36 42 90 

2 91 98 *55 37 37 41 114 

3 85 97 51 38 38 40 136 4 80 .84 48 39 38 39 142 

5 79 79 47 •39 37 42 148 

6 74 80 47 40 35 41 150 

7 70 51 50 41 35 40 158 66 94 56 43 34 45 •187 

9 66 88 45 45 34 44 204 

10 86 92 50 47 35 44 255 

11 94 86 47 42 36 48 287 

12 120 91 45 38 36 51 228 

13 124 91 46 36 34 55 210 14 221 84 52 37 36 60 •244 

15 182 69 58 38 38 58 322 

16 18? 79 57 38 39 60 397 17 175 76 56 34 *41 61 492 18 171 73 56 36 42 60 558 19 164 73 57 35 44 59 554 

20 160 62 55 34 44 58 610 

21 164 66 56 37 43 57 619 

22 165 67 57 36 43 56 594 

23 148 66 55 35 4? •56 512 24 144 70 54 34 41 59 400 25 129 84 55 33 44 73 333 182 86 38

26 115 72 55 32 47 72 322 158 78 66

27 120 79 55 30 48 77 336 142 70 55 134 67 60 

131 67 52 122 66 57 11? 82 

28 119 72 56 27 44 81 450 29 114 69 53 28 43 86 606 30 115 87 50 32 94 678 31 103 45 36 97 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 3,800 221 66 123 7,540 November 2,359 100 51 78.6 4,680 December 1,629 60 45 52.5 3,230 

Calendar year 1947 64,222 839 21 176 127,400 

January - 1,138 47 27 36.7 2,260 February , 1,144 48 34 39.4 2,270 March 1,796 97 39 57.9 3,560 April 10,336 678 90 345 20,500 May 35,192 2,350 450 1,135 69,800 June 37,214 2,500 S30 1,240 73,810 July 9,796 614 112 316 19,430 August 2,882 180 62 93.0 5,720 September 1,380 66 34 46.0 2,740 

Water year 1947-48 108,666 2,500 27 297 215,500 

Peak discharge (base, 900 sec.-ft.).- May 21 (9:15 p.m.) 2,880 se,..-ft.; June 3 (9:15 p.m.) 3,080 seq. 

•Winter discharge measurement made on this day. Note.- Stage-discharge relation affected by Ice Nov. 8 to Apr. 11 (no gage-height record Dec. 2 to 

Apr.T discharge computed on basis of 5 discharge measurements, weather records, and records for 

Rio Grande near Del Norte). 

905771 0- 50 - 17 
248 RIO GRANDE BASIN 

Pinos Creek near Del Norte, Colo. 

Location.- Water-stage recorder and 12-foot Parshall flume, lat. 37°35, (revised), long. 

1.06'2/' (revised), in sec. 29, T. 39 N., R. 5 E., just downstream from Bennett Creek 

and 8 miles southwest of Del Norte. 

Drainage area.- 53 square miles. 

Records available.- May 1936 to September 1948 in reports of Geological Survey. May 1919 

to September 1424 and May 1936 to September 1948 in reports of State engineer. (No 

winter records most years.) 

Extremes.- Maximum discharge during year, 340 second-feet May 21 (gage height, 3.03 feet); 

minimum not determined, occurred during period of no record. 

1919-24. 1936-48: Maximum daily discharge, 2,400 second-feet June 3, 1922; minimum 

daily recorded, 3.6 second-feet Oct. 27, 1939, Nov. 9, 1944 (discharge measurement). 

Remarks.- Records good except those below 25 second-feet and those for May 20 to June 15, 

which are fair. One small diversion above station. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 12 12 a18 140 172 64 16 8.0 

2 12 13 •20 129 196 57 16 8.6 

3 11 13 27 121 247 52 18 7.6 

4 10 b12 25 117 230 51 18 7.2 5 10 bll 24 134 209 51 19 7.2 

6 9.8 b10 27 141 202 50 18 6.8 

7 

8 

9 

9.8 

9.8 

9.2 

b9.8 

9.2 

9.2 

27 

29 

32 

160 

150 

133 

200 

193 

198 

45 

41 

38 

18 

20 

16 

6.8 

6.4 

7.2 

10 8.0 12 40 111 201 36 15 6.4 

11 9.8 9.8 37 97 219 35 14 6.4 

12 

13 13 

14 9.8 26 27 88 101 210 196 34 

32 16 

15 6.4 

6.0 

14 24 - 33 129 175 29 13 6.0 

15 20 - 45 154 162 29 13 5.6 

16 20 - 62 168 144 29 12 5.6 

17 20 - 86 183 134 29 13 6.4 

18 18 104 205 124 29 15 6.4 

19 18 - 101 235 137 32 14 5.2 

20 18 - 107 249 130 32 12 4.8 

21 

22 

23 

24 

25 

18 

17 

15 

16 

13 

-

-

-

-

-

103 

95 

72 

55 

45 

273 

268 

237 

223 

214 

116 

112 

98 

90 

84 

29 

27 

32 

27 

27 

12 

12 

11 

11 

10 

4.8 

4.4 

4.4 

4.4 

4.8 

26 16 - 45 197 81 26 8.6 8.6 

27 15 - 53 183 74 22 8.0 7.2 28 14 87 170 69 21 6.8 8.0 29 a13 - 124 a172 68 20 7.2 6.8 

30 .14 - 139 a175 70 19 7.2 6.8 

31 12 - a180 - 18 7.6 

Month Secondfoot-days Maximum Minimum Mean Runoff in 

acre-feet 

October 439.4 24 8.0 14.2 872 

November 1-12 130.8 13 9.2 10.9 259 

December - -

Calendar year - - - - - - _ _ 

January 

February 

March 

_ 

-

-

-

-

-

-

-

-

-

-

-

April 

May 

June 

1,715 

5,237 

4,541 

139 

273 

247 

18 

88 

68 

57.2 

169 

151 

3,400 

10,390 

9,010 

July 

August 

September 

1,063 412.4 

191.2 

64 

20 

8.6 

18 

6.8 

4.4 

34.3 

13.3 

6.37 

2,110 818 

379 

Water year - - - - -

Peak discharge (base, 120 sec.-ft.).- Apr. 18 (4:30 p.m.) 154 sec.-ft.; Apr. 30 (8:30 p.m.) 167 sec.-ft.; May 7 (7 p.m.) 190 sec.-ft.; May 21 (7:30 p.m.) 540 sec.-ft.; June 3 (8 p.m.) 287 sec.-ft.; June 11 (6 p.m.) 254 sec.-ft. •Winter discharge measurement made on this day. a No gage-height record; discharge computed on basis of records for South Fork Rio Grande at South Fork. b Stage-discharge relation affected by ice. 
- - 

249 RIO GRANDE BASIN 

Rock Creek near Monte Vista, Colo. 

Locat)on.- Water-stage recorder and 8-foot Parshall flume, lat. 37°29,, long. 106°16, , in 

SE sec. 36, T. 38 N. R. 6.E., 3 miles downstream from North Pork and 9 miles southwest of Monte Vista. 

Drainage area.- 33.6 square miles. 

Records available.- May 1935 to September 1948 in reports of Geological Survey. April 

1919 to September 1924 and May 1935 to September 1948 in reports of State engineer. 

(No winter records.) 

Extremes.- Maximum discharge during year, 131 second-feet May 20 (gage height, 2.30 feet); 

minimum daily recorded, 2.3 second-feet Sept. 16, 17. 

1919-24, 1935-48: Maximum discharge, 178 second-feet May 15, 1944 (gage height, 

2.88 feet); minimum daily recorded, 1.6 second-feet Oct. 27-31, 1921. 

Remarks.- Records good except those below 5 second-feet and those for period of no gageheight record, which are fair. Diversions above station for irrigation. 

Discharge, in second-feet, water year October 1947 to September1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 6.1 5.3 a13 60 74 21 7.0 3.5 

2 6.1 4.7 a14 54 77 20 8.0 3.2 

3 

4 6.1 

6.1 4.7 

4.2 alb 

a14 49 

44 89 

81 20 

18 7.0 

7.0 3.3 

3.5 

5 6.1 4.7 a14 47 74 17 7.7 3.0 

6 5.8 4.7 alb 54 69 18 6.7 3.0 

7 5.8 a16 64 66 17 6.4 3.2 

8 5.6 - a17 63 64 15 7.7 3.5 

9 

10 5.6 

5.6 -

- 19 

22 49 38 63 

61 14 

13 6.4 

5.3 3.5 

3.5 

11 

12 6.1 7.7 -- 22 

17 35 

29 60 60 13 

12 5.6 6.1 

3.0 

3.2 

13 7.7 15 26 56 12 5.8 3.0 

14 11 - 18 38 51' 12 5.3 2.8 

15 7.7 - 26 55 45 11 5.0 2.6 

16 7.0 - 35 70 43 11 5.0 2.3 

17 6.4 - 41 74 41 11 4.4 2.3 

18 6.1 - 48 81 39 13 4.7 3.2 

19 6.1 48 94 41 15 5.0 3.0 

20 6.4 - 50 95 38 12 4.2 3.2 

21 6.1 - 47 94 36 10 4.2 3.0 

22 6.1 - 41 88 36 9.5 5.0 2.8 

23 5.6 - 38 75 30 9.9 4.4 2.8 

24 5.8 30 67 27 9.5 3.9 2.8 

25 5.3 - 24 72 25 8.8 4.2 2.8 

26 5.0 - 24 69 23 8.4 3.9 4.4 

27 6.1 25 70 23 8.0 3.7 3.5 

28 5.8 - 36 74 21 7.7 3.7 3.2 

29 5.8 - 51 77 20 7.3 3.7 3.2 

30 6.1 - 61 77 20 6.7 3.7 3.5 

31 5.3 - 79 6.4 3.5 -

Month Secondfoot-days Maximum Minimum Mean Runoff in 

acre-feet 

October 194.1 11 5.0 6.26 385 

November 1-6 28.3 5.3 4.2 4.72 56 

December - -

Calendar year - - - - - - _ _ _ _ _ - _ _ _ _ - - - - - -

January 

February - - - - -

March - - - - - April 856 61 13 28.5 1,700 

May 1,961 95 26 63.3 3,890 

June 1,453 89 20 48.4 2,880 

July 387.2 21 6.4 12.5 768 

August 164.2 8.0 3.5 5.30 326 

September 94.0 4.4 2.3 3.13 186 

Water year -- - - -

Peak discharge(base, 40 sec.-ft.).- Apr. 18 (6 p.m.) 67 sec.-ft ; Apr. 30 8 p.m.) 74 sec.-ft.; 

May 7 (8:15 p.m.) 75 sec.-ft.; May 20 (8:45 p.m.) 131 sec.-ft.; June 3 (8:15 p.m.) 108 sec.-ft. a No gage-height record; discharge computed on basis of weather records and records for stations on nearby streams. 
		

		

250 RIO GRANDE BASIN 

Closed Basin in San Luis Valley, Colo. 

Kerber Creek at Ashley Ranch, near Villa Grove, Colo. 

Location.- Water-stage recorder, lat. 38°15', long. 106°08', in sec. 7, T. 46 N., R. 8 

---E777TU Ashley Ranch, 10 miles west of Villa Grove. 

Drainage area.- 38 square miles. 

Records available.- May 1936 to September 1948 in reports of Geological Survey. June 

1923 to September 1926 and May 1936 to September 1948 in reports of State engineer. 

(No winter records some years.) 

Extremes.- Maximum discharge during year, 165 second-feet May 20 (gage height, 2.93 feet); 

minimum daily recorded, 2.4 second-feet Sept. 7, 13-15, 22-24. 

1923-26, 1936-48: Maximum discharge, 407 second-feet May 14, 1941, from rating 

curve extended above 150 second-feet; maximum gage height, 5.04 feet May 11, 1947; 

minimum daily discharge recorded, 1.2 second-feet Aug. 14, 16, 17, 1940, Oct. 4, 1944. 

Remarks.- Records fair except those for periods of ice effect or no gage-height record, 

which are poor. No diversion atone station. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan Feb. Mar. Apr. MaY June July Aug. Sept. 

3.1 5.! 5.7 55 91 16 5.8 2.9 

2 

3 

4 

5 

3.0 

3.0 

3.1 

3.1 

5.3 

4.1 

4.4 

b3.8 

5.7 

5.7 

6.2 

7.0 

49 

45 

44 

43 

94 

105 

99 

94 

16 

16 

15 

15 

5.8 

6.4 

7.0 

7.4 

2.7 

2.7 

2.7 

2.9 

7 

3.1 

3.1 

3.2 

(*) 7.2 

7.4 

7.5 

42 

44 

50 

88 

84 

7! 

15 

14 

15 

6.1 

5.8 

6.4 

2.9 

2.4 

2.7 

8 

10 

2.2 

3.2 10 13 47 

47 73 

74 15 

13 5.8 

5.6 

2.7 

a2.6 

11 

12 

13 

14 

15 

3.8 

7.8 

7.4 

14 

7.8 

12 

11 

11 

15 

•25 

46 

41 

40 

41 

49 

77 

64 

55 

48 

42 

12 

11 

11 

9.9 

9.4 

5.3 

5.1 

4.4 

4.0 

3.3 

a2.5 

a2.5 

2.4 

2.4 

2.4 

16 

17 

18 

19 

20 

6.5 

5.6 

5.3 

5.3 

5.3 

> 3. 

4.5 

> 3.2 3.4 > 4.4 29 

33 

33 

25 

35 

68 

75 

92 

122 

138 

40 

38 

36 

36 

31 

8.3 

8.3 

7.7 

7.4 

7.0 

3.0 

2.5 

3.7 

5.6 

5.1 

2.7 

2.9 

3.2 

3.8 

3.2 

21 5.0 39 153 34 6.7 4.2 2.7 

22 5.3 .36 150 28 6.4 4.4 2.4 

23 

24 5.0 

5.0 32 

30 139 137 22 18 7.0 8.0 

3.3 

3.5 2.4 

2.4 

25 4.7 28 129 18 8.0 5.3 3.5 

26 5.9 27 103 19 7.0 4.2 4.9 

27 5.3 30 94 17 6.7 3.5 5.3 

28 5.0 34 92 18 6.7 2.9 6.3 

29 .5.0 42 92 18 7.4 2.9 4.6 

30 4.1 54 95 15 6.7 3.0 6.3 

31 5.0 94 5.8 2.9 

Month Secondfoot-days Maximum Minimum Mean Runoff in 

acre-feet 

Water year 1947-48 5,962.6 153 16.3 11,820 

le,k discharge (base, 70 sec.-ft.).- May 20 (12:45 a.m.) 165 sec.-ft.; June 3 (2:15 a.m.) 117 sec. ft. * Winter discharge measurement made on this day. 

a No gage-height record; discharge interpolated. 

b Stage-discharge relation affected by ice. 

Note.- No gage-height record Nov. 6 to Apr. 21 (stage-discharge relation affected by ice during 

most ET period); discharge computed on basis of 2 discharge measurements and weather records. 
RIO GRANDE BASIN 251 

Closed basin in San Luis Valley, Colo. 

Saguache Creek near Saguache, Colo. 

Location.- Water-stage recorder, lat. 38°09,, long. 106°19,, in sec. 11, T. 45 N., R. 

b h., 10 miles northwest of Saguache. 

Drainage area.- 595 square miles. 

Records available.- August 1910 to September 1912 and October 1933 to September 1948 in 

reports of Geological Survey. August 1910 to September 1912 and June 1914 to September 1948 in reports of State engineer. (No winter records some years.) 

Average discharge.- 31 years (1910-12, 1914-36, 1940-42, 1943-48), 80.3 second-feet. 

Extremes.- Maximum discharge during year, 458 second-feet Apr. 19: maximum gage height, 

feet May 20; minimum daily discharge recorded, 11 second-feet Sept. 18. 

1910-12, 1941-48: Maximum discharge, 746 second-feet June 15, 1921 (gage height, 

3.45 feet, datum then in use); minimum daily, that of Sept. 18, 1948. 

Remarks.- Records fair except those for periods of ice effect or no gage-height record, 

Which are poor. Diversions above station for irrigation. 

Discharge, in second-feet, water year October1947 to September1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 75 51 62 195 328 184 62 46 2 71 52 69 162 .338 177 62 44 3 68 51 88 149 348 168 62 42 4 68 41 98 138 370 163 64 39 5 68 43 106 149 388 159 68 4i 

6 64 •41 112 142 342 152 71 32 7 61 24 108 155 335 154 65 30 8 

9 59 

54 48 

b46 (*) 104 

129 162 

144 342 330 144 

134 68 

66 28 

24 10 49 49 162 127 335 125 61 23 

11 51 47 177 135 342 116 59 23 12 

13 75 

75 48 48 34 157 

114 127 118 358 .338 113 103 57 

57 23 

22 14 108 45 114 138 305 94 59 22 15 108 37 146 160 289 90 55 22 35 28 29 16 86 43 204 173 274 86 50 23 17 80 42 243 186 257 85 50 23 18 84 40 293 197 245 88 52 11 19 82 40 308 250 236 108 65 12 20 82 3! 236 330 236 99 65 19 

21 80 35 238 378 229 93 57 16 22 80 36 204 398 232 88 59 15 23 80 35 177 398 215 78 54 IS 24 66 37 144 390 197 32 55 14 25 64 48 108 412 188 90 61 14 

26 59 44 71 112 370 193 91 65 16 27 57 47 72 112 320 190 78 55 24 28 61 43 67 138 320 186 76 50 26 29 57 40 77 179 313 173 76 47 25 30 59 38 .90 211 310 173 68 46 24 31 52 75 310 64 47 

Month Secondfoot-days Maximum Minimum Mean Runoff in 

acre-feet 

October 

November 

December 

2,183 

1,271 

1,085 

108 

52 49 

23 70.4 42.4 

.35 

4,330 

2,520 

2,150 

Calendar year 1947 27,273 253 74.7 54,080 

January 

February 

March 

April 

May 

June 

July 

August 

September 

868 

841 1,302 

4,653 

7,256 

8,312 

3,426 

1,814 732 

308 

412 

388 

184 

71 

46 

_1. 

62 

118 

173 

64 

46 

11 

28 

29 

42.0 

155 

234 

277 

111 

58.5 

24.4 

1,720 

1,570 

2,580 

9,230 

14,390 

16,490 

6,800 

3,600 

1,450 

Water year 1947-48 33,743 412 11 92.2 66,930 

Peak discharge (base, 140 sec.-ft.).- Apr 19 (1:30 p m.) 458 sec.-ft.; Apr 30 (6:15 p.m.) 284 sec.-ft.; May 22 (2 p.m.) 445 sec.-ft. •Winter discharge measurement made on this day. b Stage-discharge relation affected by ice. 

Note.- No gage-height record Nov. 10 to Mar. 29 (stage-discharge relation affected by Ice during moii—Fr period). May 19, June 4, Aug. 28, 29; discharge computed on basis of discharge measurement 

made on Dec. 8, weather records, and records for stations on. nearby streams. 
			

RIO GRANDE BASIN 252 

Closed basin in San Luis Valley, Colo. 

North Crestone Creek near Crestone, Colo. 

Location.- Water-stage recorder, lat. 38°01', long: 105°41', in sec. 5, T. 43 N., R. 12 

E., II miles upstream from Crestone and 3 miles upstream from South Crestone Creek. 

Drainage area.- 10.7 square miles. 

Records available.- May 1936 to September 1948 (no winter records 1936-47). 

Extremes.- Maximum discharge during year, 133 second-feet June 3 (gage height, 1.90 

feet); minimum daily discharge not determined (occurred during period of no gageheight record). 

1936-48: Maximum discharge, 735 second-feet Aug. 6, 1936 (gage height, 4.33 feet), 

by slope-area method; minimum daily recorded, 0.4 second-foot Apr. 3, 1945. 

Remarks.- Records good above 20 second-feet and fair below except those for Nov. 24 to 

Mar. 29, which are poor. No diversions above station. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. Way June July Aug. Sept. 

1 9.4 10 2.8 24 69 46 9.4 6.9 

2 8.8 9.7 2.8 19 84 47 9.4 6.4 3 8.6 9.1 2.8 a17 117 45 8.9 6.2 4 8.3 8.6 3.0 a20 101 43 9.4 5.5 5 7.7 8.0 3.5 a25 88 46 16 5.0 

6 7.7 .7.7 3.5 a30 83 45 14 4.8 7 7.4 b7.6 3.6 833 84 38 11 4.8 a 7.4 b7.4 •) 3.6 827 83 32 11 4.8 9 6.6 7.4 4.1 a22 83 32 10 4.8 10 6.4 6.6 5.0 19 77 28 10 4.6 

11 6.6 b6.2 4.8 16 88 26 9.6 3.8 12 7.4 6.4 4.6 14 98 24 9.6 3.5 13 8.0 6.0 4.6 14 88 21 9.4 3.3 14 11 5.7 ) 2.6 5.0 25 74 19 8.9 3.3 15 12 6.4 7.3 47 73 18 8.0 3.1 3.5 2.5 2.4 16 12 5.7 11 56 66 16 7.8 3.3 17 13 5.7 14 63 66 15 7.6 3,1 18 14 5.5 14 70 65 14 7.6 3.0 19 17 5.5 13 77 63 15 7.8 3.1 20 19 5.7 16 88 62 15 7.6 3.0 

21 21 6.0 19 95 56 15 7.3 2.5 22 22 5.5 18 94 46 13 10 2.4 23 20 5.3 14 89 38 13 8.9 2.4 24 19 5.5 11 76 34 13 8.5 2.4 25 17 5.8 9.6 67 37 13 11 2.8 

26 16 5.4 8.5 61 42 12 9.6 4.8 27 16 5.3 8.5 58 43 12 8.9 4.6 28 14 5.1 9.4 62 38 11 8.5 4.6 29 14 4.9 13 65 39 10 8.0 4.3 30 12 4.9 •3.3 24 74 41 9.8 7.8 4.8 31 11 2.5 70 9.4 7.9 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 380.3 22 6.4 12.3 754 November 194.6 10 4.9 6.49 386 December 108.5 3.5 215 

Calendar year 

January 77,5 2.5 154 February 69.6 2.4 138 March 81.2 2.62 161 April 264.0 24 2.8 8.80 524 May 1,517 95 14 48.9 3,010 June 2,026 117 34 67.5 4,020 July 716.2 47 9.4 23.1 1,420 August 289.3 16 7.3 9.33 574 September 121.9 6.9 2.4 4.06 242 

Water year 1947-48 5,846.1 117 16.0 11,600 

Peak discharge (base, 60 sec.-ft.).- May 21 (6 p.m.) 121 sec.-ft.; June 3 (8 p.m.) 133 sec.-ft.; June 11 (8 p.m) 106 sec.-ft. •Winter discharge measurement made on this day. a No gage-height record; discharge computed on basis of records for stations on nearby streams. 

b Stage-discharge relation affected by ice. 

Note.- No gage-height record Nov. 24 to Mar. 29 (stnge-discharge relation affected by ice during most 6?period); discharge computed on basis of 1 discharge measurement and weather records. 
- - 

RIO GRANDE BASIN 253 

Closed basin in San Luis Valley, Colo. 

Carnero Creek near La Garita, Colo. 

Location.- Water-stage recorder, let. 37°52', long. 106°20', in sec. 26, T. 42 N., R. 6 

E., 3 miles northwest of La Garita. 

Drainage area.- 117 square miles. 

Records available.- October 1933 to September 1948 in reports of Geological Survey. 

April 1919 to September 1948 in reports of State engineer. (No winter records most 

years.) 

Extremes.- Maximum discharge during year, 239 second-feet Apr. 10 (gage height, 2.07 feet), 

17,-omrating curve extended above 100 second-feet; minimum daily, 1.3 second-feet 

Sept. 14-16. 1919-48: Maximum discharge, 1,600 second-feet July 21, 1945 (gage height, 5.75 feet), 

from rating curve extended above 170 second-feet; minimum daily, 0.3 second-foot Aug. 9, 

10, 1946. 

Remarks.- Records good above 50 second-feet and fair below except those for period of ice 

effect or no gage-height record, which are poor. Diversions above station for irrigation. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 11 9.5 21 85 58 15 3.4 2.1 

2 10 9.5 23 70 63 15 3.6 1.9 3 10 8.6 26 64 71 15 3.6 1.8 4 9.5 9.0 33 56 59 14 3.8 1.6 5 9.0 9.0 36 59 58 13 5.3 1.4 

6 8.6 8.2 38 59 48 13 8.3 1.4 7 8.6 5.0 37 68 45 14 6.8 1.4 

8 8.6 b8.6 35 68 44 12 11 1.4 

9 9.2 b7.8 .46 61 42 9.8 9.2 1.4 10 7.8 b9.0 79 55 38 8.3 6.8 1.6 

11 7.8 .8.0 85 52 40 7.7 5.6 1.5 12 12 8.4 55 50 40 7.4 5.9 1.5 13 15 8.4 36 47 34 6.5 6.5 1.4 14 22 7.5 52 50 29 5.6 6.5 1.3 15 21 7.2 87 64 25 5.3 5.0 1.3 

6.4 5.5 6.8 > 10 16 16 8.0 103 74 24 5.0 4.0 1.3 17 15 7..3 112 80 22 5.6 3.6 1.6 18 14 7.2 103 79 20 6.8 3.6 1.6 19 13 7.0 87 92 20 9.8 4.6 1.7 20 12 6.2 74 104 22 8.0 4.6 1.6 

21 12 6.3 76 95 21 8.0 3.6 1.4 22 12 6.5 71 87 21 7.1 3.2 1.4 23 12 6.2 68 76 21 5.9 2.7 1.5 24 12 6.7 49 71 20 6.8 2.5 1.6 25 10 8.2 39 87 19 8.3 3.4 1.7 

26 11 7.6 41 84 18 7.7 3.2 2.3 27 11 8.2 46 76 18 4.8 2.9 2.7 28 10 7.2 58 79 19 4.6 2.3 2.9 29 •10 6.6 88 73 15 4.8 2.1 2.7 30 10 6.1 92 64 14 4.2 2.0 2.6 31 10 - ! 63 3.8 2.1 -

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 359.1 22 7.8 11.6 712 November 229.3 9.5 5.0 7.64 455 December 198.4 6.4 394 

Calendar year - - - -

January 170.5 - - 5.5 338 February 197.2 - - 6.8 391 March 310 10 615 April 1,796 112 21 59.9 3,560 May 2,192 104 47 70.7 4,350 June 988 71 14 32.9 1.960 July 262.8 15 3.8 8.48 521 August 141.7 11 2.0 4.57 281 September 51.6 2.9 1.3 1.72 102 

Water year 1947-48 6,896.6 112 1.3 18.8 13,680 

Peak discharge (base 110 eec.-ft.).- Apr. 10 (8:30 p.m.) 239 sec.-ft.; Apr. 15 (9 p.m.) 232 BeC.- ft.; Apr. ID (2 a.m.-I 137 sec.-ft.: May 20 (6 a.m.) 128 sec.-ft. •Winter discharge measurement made on this day. b Stage-discharge relation affected by ice.

Note.- No gage-height record Nov. 7, Nov. 11 to Apr. 8 (stage-discharge relation affected by ice duRni-most of period): discharge computed on basis of 1 discharge measurement and weather records. 
254 RIO GRANDE BASIN 

Closed basin in San Luis Valley, Colo. 

La Garita Creek near La Garita, Colo. 

Location.- Water-stage recorder, lat. 37°49', long. 106°18', in sec. 10, T. 41 N., R. 6 

b., 4 miles southwest of La Garita. 

Drainage area.- 61 square miles. 

Records available.- October 1933 to September 1948 in reports of Geological Survey. 

---Kr>ril 1919 to September 1948 in reports of State engineer. (No winter records most 

years.) 

Extremes.- Maximum discharge during year, 158 second-feet May 21 (gage height, 1.35 feet), 

from rating curve extended above 100 second-feet; minimum daily recorded, 2.5 secondfeet Sept. 14-16, 22, 23. 

1919-48: Maximum discharge, 457 second-feet May 16, 1941 (gage height, 5.11 feet), 

from rating curve extended above 220 second-feet; minimum daily, 0.7 second-foot 

Aug. 29, 1940. 

Remarks.- Records good above 10 second-feet and fair below except those for periods of 

- no gage-height record, which are poor. Diversions above station for irrigation. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 000F1M , 40 44W O m ,'80, 0=,=58. '", ;.00ob0 00o0O 0. .f.o 0. ,,iti ii, O 0

,

5.0 

5.0 

4.2 

4.2 

4.2 

3.9 

3.9 

3.9 

3.9 

3.9 

3.6 

3.6 

3.2 

2.5 

2.5 

2.5 

2.8 

2.8 

3.2 

2.8 

2.8 

2.5 

2.5 

2.8 

2.8 

5.0 

4.6 

5.6 

3.9 

3.9 

1 9.0 7.5 1 7.2 63 66 19 

2 8.5 8.0 8.4 56 74 22 

3 8.0 7.0 10 47 88 22 

4 7.5 8.0 12 51 80 19 

5 7.0 7.5 13 59 75 17 

6 7.5 7.5 14 65 72 17 

7 7.5 4.1 13 79 70 17

8 8.0 7.3 12 77 69 15

9 8.0 6.8 .16 61 68 14 

10 7.5 7.2 28 43 63 13

11 7.5 .6.8 30 43 75 12

12 12 7.2 20 41 63 12 13 13 7.2 16 48 53 9.0

14 22 6.7 21 68 47 8.0

15 17 5.6 33 82 40 8.0 5.0 > 4.5 4.6 > 6.0 

16 17 6.4 49 96 35 8.5

17 16 6.2 59 93 33 8.0

18 16 5.9 66 94 33 9.5

19 1 3 5.9 56 120 30 16

20 12 5.0 59 115 31 14

21 11 5.2 54 107 28 14 

22 11 5.4 47 99 28 13

23 10 5.2 45 91 28 12

24 10 5.6 32 86 25 15 

25 7.5 7.0 28 85 22 13 

26 8.0 6.6 30 79 21 14 

27 8.5 7.0 31 79 21 11 28 8.5 6.2 44 80 21 10 29 .8.5 5.5 63 74 18 10 30 8.5 5.0 - 66 73 18 9.5 31 7.0 - l - 69 9.5 - 11 

Second- Runoff In Month Maximum Minimum Mean foot-days acre-feet 

October 322.5 22 7.0 10.4 64u November 192.5 8.0 4.1 6.42 382 December 155.0 5.0 307 

Calendar year - - - - -

January 139.5 - 4.5 277 February 133.4 - 4.6 265 March 186.0 - - 6.0 369 April 982.6 66 7.2 32.8 1,950 May 2,325 120 41 75.0 4,610 June 1,395 88 18 46.5 2,770 July 411.0 22 8.0 13.3 815 August 262.5 14 4.2 8.47 521 September 108.0 5.6 2.5 3.60 214 

Water year 1947-48 6,613.0 120 - 18.1 13,120 

Peak discharge (base, 80 sec.-ft.).- Apr. 30 (10 p.m.) 109 sec.-ft.; May 21 (12:30 a.m.) 158 sec.-

ft. •Winter discharge measurement made on this day. Note.- No gage-height record Nov. 7 to Apr. 8 (stage-discharge relation affected by ice during moat 

of-TeT.Tod), May 28 to June 3: discharge computed on basis of 1 discharge measurement, weather records, and records for stations on nearby stream.. 
255 

RIO GRANDE BASIN 

Alamosa Creek above Terrace Reservoir, Colo. 

Location.- Water-stage recorder, lat. 37°23,, long. 106°21', in sec. 8, T. 36 N., R. 6 E., 

3 miles upstream from Terrace Reservoir Dam and 15 miles northwest of Capulin. 

Drainage area.- 107 square miles. 

Records available.- September 1911 to June 1912 and October 1934 to September 1948 in 

reports of Ueoiogical Survey. April 1915 to October 1919, October 1923 to September 

1927, and October 1934 to September 1948 in reports of State engineer. (No winter 

records most years.) 

• 

Extremes.- Maximum discharge during year, 1,650 second-feet June 3 (gage height, 4.09 

reet), from rating curve extended above 1,060 second-feet; minimum not determined, 

occurred during period of no gage-height record. 

1911-12, 1915-19, 1923-27, 1934-48: Maximum discharge, 5,200 second-feet Oct. 5, 

1911 (gage height, 11.0 feet, datum then in use, from floodmark), computed by weir 

formula; minimum not determined. 

Remarks.- Records excellent above 100 second-feet and good below except those for 

---PTI-Uds of ice effect or no gage-height record, which are fair. No diversions above 

station. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 62 42 16 420 /84 346 57 23 

2 58 43 30 390 749 307 57 21 3 54 40 42 370 1,190 279 54 20 4 50 33 44 365 1,180 271 50 19 5 45 32 45 450 1,000 267 87 18 

6 43 29 45 515 912 252 73 18 7 42 19 46 605 864 245 62 16 8 40 38 (*) 48 557 826 220 68 16 9 39 36 54 420 928 194 66 16 10 37 *32 64 311 904 181 54 16 

11 43 32 80 260 944 169 50 16 12 58 34 70 223 944 158 60 16 13 58 37 •62 234 826 143 61 15 14 89 35 92 370 707 133 48 14 15 72 32 143 593 629 122 44 14 20 16 16.5 20 16 72 33 210 756 587 115 40 14 17 72 34 260 840 557 108 37 14 18 72 34 311 928 510 110 39 15 19 74 b34 315 1,100 551 125 40 14 20 73 b27 346 1,080 498 138 34 14 

21 78 b28 370 1,220 430 110 32 14 22 76 b29 333 1,220 360 92 36 12 23 66 b28 283 1,050 307 89 34 12 24 64 b30 203 819 264 87 33 12 25 57 b36 163 654 256 87 34 12 

26 51 b32 149 527 283 83 32 18 27 52 b34 166 488 311 74 28 18 28 51 b31 241 515 291 70 26 18 29 51 b29 356 687 291 68 24 16 30 48 b28 405 826 351 62 24 16 31 44 - 888 58 24 -

Second- Runoff in Month I Maximum Minimum Mean foot-days acre-feet 

October 1,790 89 37 57.7 3,550 November 981 43 19 32.7 1,950 December 620 - 20 1,230 

Calendar year1947 39,575 680 - 108 78,500 

January 496 - 16 984 February 478.5 - •16.5 949 March 620 - - 20 1,230 April 4,992 405 16 166 9,900 May 19,681 1,220 223 635 39,040 June 19,234 1,190 256 641 38,150 July 4,763 346 58 154 9,450 August 1,408 87 24 45.4 2,790 September 477 23 12 15.9 946 

Water year 1947-48 55,540.5 1,220 152 110,200 

Peak discharge (base670 sec.-ft.- May 22 (12:30 a m.) 1,560 sec.-ft.; June 3 (10 p m.) 1,650 src.-ft.; June (-11:30. p.m.) I,16/sec.-ft.; June 19 (10:30 p.m. 763 sec.-ft. •Winter discharge measurement made on this day. b Stage-discharge relation affected by ice. 

Note.- No gage-height record Oct. 24-28, Dec. 1 to Mar. 31 (stage-discharge relation affected by ice7.-daiqhg moat of period), Apr. 2-4, 6-12; discharge computed on basis of 1 discharge measurement, weather records, and records for stations on nearby streams. 
			 	

		 	

256 RIO GRANDE BASIN 

Alamosa Creek below Terrace Reservoir, Colo. 

Location.- Water-stage recorder, lat. 37°21', long. 106°17', in sec. 23, T. 36 N., R. 

b b., half a mile downstream from Terrace Reservoir and 11 miles northwest of Capulin. 

Drainage area.- 116 square miles. 

Records available.- April 1909 to June 1912 and October 1933 to September 1948 in reports 

of Geological Survey. April 1909 to November 1912, April to October 1915, February 

1917 to October 1920 and April 1922 to September 1948 in reports of State engineer. 

Average discharge.- 30 years (1909-10, 1915-18, 1922-48), 121 second-feet. 

Extremes.- Maximum discharge during year, 1,420 second-feet June 14 (gage height, 5.77 

feet), from rating curve extended above 820 second-feet; minimum daily, 14 secondfeet Dec. 31 to Feb. 29. 

1909-12, 1915, 1917-20, 1922-48: Maximum daily discharge, 1,450 second-feet June 

16-18, 1917; minimum daily, 0.2 second-foot Nov. 13, 1942. 

Remarks.- Records excellent except those for periods of no gage-height record, which are 

good. Flow regulated by Terrace Reservoir (capacity, 17,700 acre-feet). No diversion 

. above station. 

Rating tables, water year 1947-48 (gage height, in feet, and discharge, in second-feet) (Shifting-control method used June 14 to July 25) 

Oct. 1 to June 9 June 10 to Sept. 30 

2.0 14 2.4 59 3.4 335 2.1 13 2.6 58 3.4 270 

2.1 23 2.5 76 4.0 555 2.2 19 2.7 73 3.9 480 

2.2 33 2.6 96 4.7 860 2.3 26 2.8 91 4.8 910 

2.3 45 2.9 173 5.8 1,440 2.5 45 3.1 166 

Discharge, in second-feet, water year October1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

53 55 17 14 14 15 17 290 756 422 139 86 

2 

1 53 55 17 14 • 14 15 17 300 724 422 144 86 

3 53 32 17 14 14 15 17 366 1,020 408 152 82 

4 53 19 17 14 14 15 17 366 1,090 322 136 60 

5 53 19 16 14 14 15 17 370 955 322 134 60 

6 53 19 16 14 14 15 17 380 875 330 134 58 

7 53 18 16 14 14 15 17 468 865 330 134 52 

8 S3 18 16 14 14 15 17 468 774 330 139 60 

9 53 18 16 14 14 15 17 472 845 326 169 48 

10 53 17 16 14 14 15 17 450 860 294 166 37 

16 14 14 15 17 293 870 286 142 36 

12 53 16 16 14 14 15 17 293 905 286 139 35 

13 

11 53 16 

53 16 16 14 14 15 17 293 855 286 136 32 

14 53 16 16 14 14 15 18 293 750 278 132 36 

15 53 16 16 14 14 15 19 297 670 278 134 26 

16 53 16 16 14 14 16 19 310 588 270 158 26 

17 55 16 14 14 16 20 487 556 248 158 17 

18 55 16 It 14 14 16 20 511 538 241 155 16 

19 55 16 16 14 14 16 20 659 502 252 126 16 

20 55 17 16 14 14 16 74 667 538 252 119 16 

21 55 17 16 14 14 16 162 765 494 252 82 20 

22 55 17 16 14 14 16 218 940 466 252 82 15 

23 55 17 16 14 14 16 287 940 453 248 80 15 

24 55 17 16 14 14 16 289 885 440 205 75 15 

25 55 17 16 14 14 16 284 729 330 202 82 15 

26 55 17 16 14 14 16 284 595 326 142 80 16 

27 55 17 16 14 14 16 284 527 322 169 86 20 

28 55 17 16 14 14 16 284 527 322 172 80 20 

29 55 17 16 14 14 16 287 527 326 172 78 15 

30 55 17 15 14 - 16 287 527 362 166 78 15 

31 55 14 14 - 16 - 684 136 84 -

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 1,673 55 53 54.0 3,320 

November 601 55 16 20.0 1,190 

December 497 17 14 16.0 986 . _ 

Calendar year 1947 38,278 -

663 11 105 75,930 

January 434 14 14 14.0 861 

February 406 14 14 14.0 805 

-

March 481 16 15 15.5 954 

April 3,075 287 17 102 6,100 

May 15,679 940 290 506 31,100 

June 19,377 1,090 322 646 38,430 

July 8,299 422 136 268 16,460 

August 3,733 169 75 120 7,400 

September 1,051 86 15 35.0 2,080 

Water year 1947-48 55,306 1,090 14 151 109,700 

Note.- No gage-height record Dec. 3-7, 9-14, Dec. 16 to Apr. 12; discharge computed on basis of diiaiFge measurement made Jan. 12 and gate openings at Terrace Reservoir. 
257 RIO GRANDE BASIN 

La Jara Creek at Gallegos Ranch, near Capulin, Colo. 

Location.- Water-stage recorder, lat. 37°09', long. 106°13', in NEi sec. 32, T. 34 N., R. 

7 h., 2 miles upstream from former station (published as La Jara Creek near Capulin), 

2,1, miles upstream from Canyon Del Rancho, 11 miles southwest of Capulin, and 11 miles 

downstream from La Jara Reservoir. 

Drainage area.- 79 square miles. 

Records available.- May 1936 to September 1948 (no winter records). 

Extremes.- Maximum discharge during year, 319 second-feet Apr. 20 (gage height, 4.03 

feet), from rating curve extended above 190 second-feet; minimum daily recorded, 

5.6 second-feet Sept. 24, 25. 

1936-48: Maximum discharge, 653 second-feet Apr. 15, 1937 (gage height, 5.94 

feet), from rating curve extended above 220 second-feet; minimum daily recorded, 

3.5 second-feet Nov. 28, 1936. 

Remarks.- Records good except those below 10 second-feet and those for periods of ice 

---UrreFt or no gage-height record, which are fair. Small diversions above station for 

irrigation. Flow regulated by La Jara Reservoir (capacity, 14,040 acre-feet). 

Revisions.- W 878: Drainage area. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 7.8 30 al2 144 67 14 38 26 2 7.8 29 all 117 45 12 39 27 3 

4 7.8 

7.4 29 

IS al5 

a16 113 sus 40 

31 12 

Ix 38 

33 27 

26 

5 7.4 10 a15 109 26 12 39 26 

6 7.8 9.0 a17 112 24 11 38 26 7 7.8 7.8 18 127 23 11 34 25 8 8.2 11 17 105 24 9.4 34 26 9 8.2 11 18 74 21 9.4 31 21 10 8.2 *8.2 25 60 19 9.4 31 20 

11 11 6.6 76 54 18 9.4 21 19 12 12 7.4 25 48 19 9.4 18 19 13 

14 9.8 

15 12 

12 25 

29 44 53 16 

14 8.9 

22 17 26 19 19 15 13 8.2 48 62 12 38 28 19 

16 

17 

18 

19 

20 

10 

9.8 

9.4 

9.0 

9.0 

9.8 

16 

10 

15 

13 

76 

124 

146 

161 

190 

66 

59 

56 

54 

54 

12 

12 

12 

13 

18 

38 

59 

39 

43 

42 

22 

20 

29 

31 

29 

19 

26 

26 

26 

26 

21 9.4 10 189 46 16 44 29 26 22 

23 10 

9.8 11 

14 181 

132 38 32 18 17 42 38 29 28 21 7.2 24 10 13 81 38 14 33 18 5.6 25 9.8 16 62 123 13 30 12 5.6 

26 

27 

28 

9.8 

29 

31 

14 

14 

12 

63 

76 

114 

99 

84 

67 

13 

12 

14 

25 

23 

24 

8.0 

7.2 

6 8 

8.9 

6.8 

7.2 29 31 12 149 53 14 29 6 4 7.2 30 

31 31 30 11 157 42 

38 14 31 37 6.4 

25 7.2 

Month Secondfoot-days Maximum Minimum Mean Runoff in 

acre-feet 

October 

November 

December 

397.2 

395.0 31 30 7.4 

6.6 12.8 

13.2 788 783 _ -

Calendar year . - _ . _ -

January - - - _ -

- - - February 

March - -

- - -

- April 

May 

June 

July 

August 

September 

2,230 

2,276 611 

756.9 

776.8 

570.7 

190 

144 

67 

44 

39 

27 

12 

32 

12 

8.9 

6.4 

5.6 

74.3 

73.4 

20.4 

24.4 

25.1 

19.0 

4,420 

4,510 

1,210 

1,500 

1,540 

1,130 

Water year - - - - -

•Winter discharge measurement made on this day. a No gage-height record; discharge computed on basis of weather records and records for stations on nearby streams. 

Note.- Stage-discharge relation affected by ice No,. 7-30. 
258 RIO GRANDE BASIN 

Trinchera Creek above Turners Ranch, near Fort Garland, Colo. 

Location.- Water-stage recorder, lat. 37°22', long. 105°19', in sec. 2, T. 31 S., R. 71 

W., just upstream from Turners Ranch and 7 miles southeast of Fort Garland. 

Drainage area.- 45 square miles. 

Records available.- October 1933 to September 1948 in reports of Geological Survey. April 19?3 to September 1948 in reports of State engineer. (No winter records most years.) 

Extremes.- Maximum discharge during year, 160 second-feet June 2 (gage height, 3.36 feet); 

minimum not determined, occurred during period of no gage-height record. 

1923-48: Maximum discharge, 689 second-feet May 27, 1942, from rating curve extend. 

ed above 240 second-feet; maximum gage height, 3.47 feet May 15, 1944; minimum daily 

discharge recorded, 3.0 second-feet Oct. 3, 1942. 

Remarks.- Records good except those for periods of no gage-height record, which are poor. 

No diversion or regulation above station. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

12 13 > > 12 53 140 44 20 1C 2 10 13 14 52 143 42 18 9.8 3 10 13 14 53 140 41 19 9.8 4 10 13 13 52 143 40 20 9.5 5 10 12 14 53 135 39 22 9.2 

6 9.7 11 14 54 128 39 20 8.9 7 9.7 •12 15 60 125 38 19 8.6 8 9.7 16 65 122 35 19 8.9 9 9.7 15 63 120 34 17 9.8 10 10 16 57 118 33 16 9.2 

11 10 17 53 113 32 16 8.9 12 12 16 49 109 30 17 7.7 

13 12 14 47 102 30 17 7.7 14 19 16 50 94 29 17 7.7 15 17 20 60 90 28 16 8.0 8.5 6.5 7.5 > 9.0 16 16 024 74 84 28 15 9.2 17 16 30 81 81 27 15 9.2 18 15 33 94 73 27 15 8.9 19 15 10 37 104 75 28 15 8.9 20 14 42 118 72 27 14 8.6 

21 16 43 128 68 25 14 8.6 

22 17 40 130 66 24 15 8.3 23 15 38 132 63 24 14 8.3 24 15 38 130 56 23 13 8.3 25 14 32 125 54 22 13 9.2 

26 14 30 120 52 22 12 10 27 12 29 122 50 22 12 11 28 13 31 130 52 22 12 10 29 13 40 135 49 21 11 10 30 13 - 54 138 46 20 11 11 31 13 - r - 143 19 11 - e' 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 401.8 19 9.7 13.0 797 

November 317 13 - 10.6 629 

December 263.5 - 8.5 523 

Calendar year - - - - -

January 201.5 - - 6.5 400 February 217.5 - - 7.5 431 March • 279.0 - - 9.0 553 April 767 54 12 25.6 1,520 May 2,725 143 47 87.9 5,400 June 2,763 143 46 92.1 5,480 July 915 44 19 29.5 1,810 August 485 22 11 15.6 962 September 273.2 11 7.7 9.11 542 

Water year 1947-48 9,608.5 143 26.3 19,050 

Peak discharge (base, 50 sec.-ft.).- May 8 (3:45 p.m.) 76 sec.-ft.; May 24 (5:30 a.m.) 143 sec.-ft. June 2 (9 p.m.) 160 sec.-ft. •Winter discharge measurement made on this day. Note.- No gage-height record Oct. 27-31, Nov. 7 to Apr. 15 (stage-discharge relation affected by icT-KFing most of period); discharge computed on basis of 1 discharge measurement, weather records, and records for stations on nearby streams. 
259 

RIO GRANDE BASIN 

Trinchera Creek above Mountain Home Reservoir, near Fort Garland, Colo. 

:,c,cation.- Water-stage recorder upstream from rating flume, lat. 37°24', long. 105°32', 

n sec. 31, T. 30 S.. R. 71 W., if miles upstream from Mountain Home Reservoir Dam 

and 4 miles southeast of Fort Garland. 

Drainage area.- 61 square miles. 

Records available.- October 1933 to September 1948 in reports of Geological Survey. May 

1923 to September 1948 in reports of State engineer. (No winter records most years.) 

Extremes.- Maximum discharge during year, 150 second-feet June 4 (gage height, 1.50 

feet), from rating curve extended above 110 second-feet; minimum daily, 1.2 secondfeet Sept. 6-8, 21, 22. 

1923-48: Maximum discharge, 421 second-feet May 11, 1947 (gage height, 3.02 feet), 

from rating curve extended above 110 second-feet; minimum not determined. 

Remarks.- Records good above 50 second-feet and fair below except those for period of 

no gage-height record, which are poor. Diversions above station for irrigation. 

Discharge, In second-feet, water year October 1947 to September1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 12 12 11 49 125 23 9.4 3.8 

2 11 12 I 13 48 120 22 9.4 2.4 

3 11 12 13 50 136 22 8.2 2.7 

4 11 12 12 47 134 23 8.8 2.7 

5 10 11 13 50 127 22 12 1.5 

10 10 13 48 122 20 11 1.2 7 10 (*) 14 50 115 19 9.4 1.2 8 10 15 56 102 16 11 1.2 

9 9.4 (*) 14 63 93 13 9.4 3.0 10 9.4 15 56 87 14 8.2 5.0 

11 10 16 53 88 13 7.6 6.2 

12 11 16 49 82 12 7.0 5.8 13 11 (*) 13 45 72 12 7.6 6.2 14 15 14 46 66 11 7.6 4.6 15 16 15 52 59 9.4 7.6 5.8 6.8 5.0 6.8 ) 9.0 16 14 22 66 51 10 7.0 5.8 17 13 23 76 45 10 6.2 3.4 18 12 ) 6.5 25 92 42 9.4 6.2 2.1 19 12 26 106 43 11 6.6 1.5 20 12 (•) 28 122 47 10 6.6 1.5 

21 11 34 131 42 9.4 6.2 1.2 22 12 33 118 42 9.4 6.6 1.2 23 12 32 120 38 9.4 6.6 1.5 24 11 32 131 33 10 5.8 1.5 25 11 28 129 31 9.4 5.8 1.8 

26 11 27 122 30 9.4 6.6 3.4 27 11 26 115 29 8.8 5.8 5.8 28 12 26 118 29 8.8 5.4 3.0 29 12 '12 32 121 27 12 5.0 3.8 30 12 / - 12 40 129 26 11 4.6 4.6 31 12 11 132 11 4.2 -

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 356.8 16 9.4 11.5 708 November 225.0 12 7.50 446 December 210.8 - - 6.8 418 

Calendar year 1947 12,354.3 388 - 33.8 24,510 

January 155.0 - 5.0 307 February 197.2 6.8 391 March 287.0 - 9.26 569 April 641 40 11 21.4 1,270 May 2,590 132 45 83.5 5,140 June 2,083 136 26 69.4 4,130 July 410.4 23 8.8 13.2 814 August 229.4 12 4.2 7.40 455 September 95.4 6.2 1.2 3.18 189 

Water year 1947-48 7,481.0 136 1.2 20.4 14,840 _,_ 

ea discharEe base, 40 sec.-ft. - May 9 3 a.m. 68 sec.-ft.; June 4 (1 a.m. 150 sec.-ft. 

. Winter discharge measurement made on this day. 

Note.- No gage-height record Nov. 7 to Mar. 28 (stage-discharge relation affected by Ice during moirOT period); discharge computed on basis of 4 discharge measurements and weather records. 
- - - 

260 RIO GRANDE BASIN 

Trinchera Creek below Smith Reservoir, near Blanca, Colo. 

Location.- Water-stage recorder, lat. 37023', long. 105035,, in sec. 5, T. 31 S., R. 73 

W., 1 mile downstream from Smith Reservoir and 5 miles southwest of Blanca. 

Drainage area.- 396 square miles. 

Records available.- October 1933 to September 1948 in reports of Geological Survey. 

October 1929 to September 1948 in reports of State engineer. (No winter records most 

years.) 

Extremes.- Maximum discharge during year, 183 second-feet May 29 (gage height, 2.64 feet); 

minimum daily, 0.3 second-foot Aug. 15, 20-24, Aug. 27 to Sept. 30. 

1929-48: Maximum daily discharge, 1,340 second-feet May 11. 1942; minimum daily 

recorded, 0.1 second-foot at times in 1937, 1938, 1945, and 1947. 

Remarks.- Records good above 10 second-feet and fair below. Diversions above station for 

irrigation. Flow regulated by Smith Reservoir (capacity, 5,335 acre-feet). 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 0.6 0.6 2 .6 .6 3 .6 .6 4 .6 .6 5 .6 .6 

6 .6 .8 

99999 99999 . 99999 9999999999 999999 

. 

0.9 1.2 38 50 130 157 16 0.6 0.3 .9 1.2 31 48 146 154 16 .6 .3 .9' 1.2 27 51 147 158 17 .6 .3 .9 1.2 24 52 136 157 17 .6 .3 .9 1.2 24 51 125 138 17 .5 .3 

.9 1.2 24 50 109 134 17 .5 .3 7 .5 0.8 .9 1.2 25 51 105 124 18 .5 .3 8 .5 .8 .9 1.2 25 51 100 104 18 .5 .3 9 .5 .8 .9 1.2 26 60 111 93 12 .5 .3 10 .6 .8 

11 .7 .8 12 .7 .8 13 .7 .8 14 .7 .8 15 .5 .8 

16 .5 .9 17 .5 .9 18 .5 .9 19 .5 .9 20 .5 .9 

21 .5 .9 22 .4 .9 23 .4 .9 24 .4 .9 25 .4 .9 

26 .5 .9 27 .5 .9 28 .5 .9 29 .5 .9 30 .5 .9 31 .5 

.9 1.2 25 62 124 73 1.1 .5 .3 

.9 1.3 24 66 127 61 1.2 .5 .3 .9 1.3 22 74 124 56 1.2 .8 .3 •.9 1.3 23 72 111 60 1.2 .6 .3 .9 01.3 24 71 91 64 1.1 .5 .3 .9 1.3 26 61 73 50 1.0 .3 .3 

.9 1.3 28 59 77 32 1.0 .4 .3 .9 1.3 29 62 83 20 1.0 .4 .3 .9 1.3 31 82 94 15 1.0 .5 .3 .9 1.3 33 110 105 14 .9 .5 .3 .9 055 33 128 118 15 .9 .3 .3 

1.0 127 34 145 130 19 .8 .3 .3 1.0 90 33 159 133 20 .8 .3 .3 1.0 66 34 162 135 19 .8 .3 .3 1.0 53 39 163 127 18 .8 .3 .3 1.0 45 45 153 141 18 .8 .4 .3 

1.1 39 46 142 157 17 .8 .4 .3 1.1 36 45 127 171 16 .8 .3 .3 1.1 36 47 114 173 16 .8 .3 .3 1.1 37 49 105 178 16 .8 .3 .3 1.1 - 52 112 179 16 .8 .3 .3 1.1 53 - 166 .7 .3 

Month Second- Runoff in Maximum Minimum Mean foot-days acre-feet 

October 16.6 0.7 0.4 0.54 33 November 24.5 .9 .6 .82 49 December 31.0 1.0 1.0 1.00 61 

Calendar year 1947 6,249.2 296 .1 17.1 12,400 

January - -

29.6 1.1 .9 .95 59 February 607.7 127 1.2 21.0 1,210 March 1,019 53 22 32.9 2,020 April 2,693 163 48 89.8 5,340 May 3,926 179 73 127 7,790 June 1,854 158 14 61.8 3,680 July 168.3 18 .7 5.43 334 August 13.7 .8 .3 .44 27 September 9.0 .3 .3 .30 18 

Water year 1947-48 10,392.4 179 .3 28.4 20,620 

•Winter discharge measurement made on this day. Note.- No gage-height record Nov. 15 to Feb. 19 (stage-discharge relation affected by ice during paFFiit period); discharge computed on basis of 3 discharge measurements and gate openings at Smith 

Reservoir. 
261 

RIO GRANDE BASIN 

Sangre de Cristo Creek near Fort Garland, Colo. 

Location,- Water-stage recorder, lat. 37°26,, long. 105°24,, in sec. 23, T. 30 S., R. 72 

w., If miles east of Fort Garland and 4 miles upstream from Ute Creek. 

Drainage area.- 187 square miles. 

Records available.- October 1933 to September 1948 in reports of Geological Survey. March 

to October 191b and May 1923 to September 1948 in reports of State engineer. (No winter 

records most years.) 

Extremes.- Maximum discharge during year, 309 second-feet May 25 (gage height, 6.24 feet); 

minimum daily, 0.1 second-foot Sept. 7, 15, 23, 24. 

1916, 1923-48: Maximum discharge, 1,520 second-feet Aug. 31, 1936, by slope-area 

method; maximum gage height, 7.65 feet May 10, 1942, from floodmarks; no flow at times 

during 1934-36, 1939-40, 1943, 1946. 

Remarks.- Records good except those for period of ice effect or no gage-height record, 

which are poor. A few diversions above station for irrigation. 

Discharge, in second-feet, water year October1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 9.4 12 24 255 194 33 8.2 2.1 

2 9.0 11 25 230 162 30 9.6 1.6 

3 9.0 11 32 211 158 28 8.7 1.8 

4 9.0 11 39 182 135 28 11 1.8 

5 9.0 (b) 36 173 122 28 13 1.0 

6 

7 

8 

9.0 

9.4 

9.4 

(b) 

(0) 

} 11 43 

46 

46 

162 

162 

175 

112 

109 

108 

32 

28 

25 

14 

11 

11 

.4 

.1 

.7 

9 

10 

9.4 

9.4 (*) 52 64 

171 

160 

96 

87 

22 

21 

9.2 

7.8 

1.8 

2.4 

11 9.4 80 158 81 22 6.4 2.4 

12 10 57 149 81 19 6.4 1.8 

13 12 44 128 71 18 7.3 1.3 

14 14 43 115 65 16 7.3 .4 

15 16 52 122 61 16 6.4 .1 

11.5 11 11 12 16 14 82 138 57 16 6.4 .4 

17 12 9.0 121 153 53 15 6.0 .7 

18 12 159 164 49 14 6.0 .4 

19 12 183 168 53 13 9.6 .4 

20 11 (*) 190 164 82 13 8.7 .4 

21 *11 201 158 60 13 6.4 .7 

22 11 194 149 59 14 6.0 .7 

23 12 181 138 56 14 6.0 .1 

24 11 179 162 48 14 5.2 .1 

25 11 } 18 142 241 43 12 5.6 .7 

26 11 142 273 41 12 4.7 2.1 

27 11 143 294 39 11 3.9 4.3 

28 11 149 291 42 10 3.0 4.3 

29 11 •28 175 250 43 9.2 2.4 4.3 

30 11 - 35 241 204 37 8.7 2.1 3.9 

31 11 - - 31 186 8.7 2.4 

Month Secondfoot-days Maximum Minimum Mean Runoff in 

acre-feet 

October 336.4 16 9.0 10.9 667 

November 279.0 9.30 553 

December 356.5 - - 11.5 707 

-

Calendar year 1947 15,510.0 384 - 42.5 30,750 

___ _ - _ _ _ _ - .- -

January 

February 

March 

341 

319 

468 

-

35 

-

-

11 

11 

15.1 

676 

633 

928 

April 

May 

June 

July 

August 

September 

3,165 

5,686 

2,404 

563.6 

221.7 

43.2 

241 

294 

194 

33 

14 

4.3 

24 

115 

37 

8.7 

2.1 

.1 

106 

183 

80.1 

18.2 

7.15 

1.44 

6,280 

11,280 

4,770 

1,120 

440 

86 

Water year 1947-48 14,183.4 294 .1 38.8 28,140 

Peak discharge ((base 75 sec.-ft.).- Apr. 21 (4 a.m.) 232 sec.-ft.; May 1 (5 a.m.) 282 sec.-ft.; 

May 25 [4:30 p.m. TOT sec.-ft. 

• Winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice. 

Note.- No gage-height record Nov. 7 to Mar. 28 (stage-discharge relation affected by ice during 

mores period), July 16-19; discharge computed on basis of 3 discharge measurement. and weather 

records. 
- - 

		

RIO GRANDE BASIN 262 

Ute Creek near Fort Garland, Colo. 

Location.- Water-stage recorder upstream from rating flume, lat. 37°28', long. 105°24., 

in sec. 2, T. 30 S., R. 72 W., 6 miles north of Fort Garland and 6 miles upstream 

from mouth. 

Drainage area.- 32 square miles. 

Records available.- October 1933 to September 1948 in reports of Geological Survey. 

March to October 1916 and May 1923 to September 1948 in reports of State engineer. 

(No winter records some years.) 

Extremes.- Maximum discharge during year, 171 second-feet June 20 (gage height, 2.72 

feet); minimum daily recorded, 2.8 second-feet Sept. 24. 

1916, 1923-48: Maximum daily discharge, 630 second-feet May 15, 1941: minimum 

daily, 1.5 second-feet Sept. 23, 1944. 

Remarks.- Records excellent above 10 second-feet and good below except those for period 

---17-T7 gage-height record, which are poor. A few diversions above station for irrigation. 

Rating table, water year 1947-48 (gage height, in feet, and discharge, in second-feet) (Shifting-control method used Oct. 1-3, Oct. 16 to Nov. 14) 

0.4 1.5 0.7 12 1.6 69 .5 4.0 .8 17 2.3 127 .6 7.5 1.2 41 2.8 181 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 14 9.3 13 71 103 59 17 6.8 

2 12 7.5 14 66 107 58 16 6.4 

3 12 5.4 16 63 141 54 15 6.4 

4 11 5.4 16 56 134 54 14 6.1 5 11 6.1 16 54 122 54 72 5.8 

6 8.8 6.8 18 54 121 48 53 5.4 7.2 .7.5 18 59 123 48 33 5.4 

8 6.4 10 18 66 124 47 27 5.8 9 5.8 9.3 19 68 122 44 24 6.1 

10 6.1 9.8 24 63 111 43 22 6.1 

11 6.4 8.4 25 61 112 42 19 6.1 

12 8.4 8.4 22 52 118 42 19 6.1 13 12 9.8 19 46 116 38 18 5.4 14 14 8.4 19 43 104 34 16 5.8 15 14 7.9 22 52 95 35 15 5.8 7.0 ) 5.4 6.4 8.8 16 12 8.7 31 68 89 32 14 5.4 17 12 8.4 39 89 82 30 13 5.4 18 12 8.2 45 103 79 30 13 5.0 19 11 8.2 50 106 91 29 14 4.7 20 11 7.0 52 109 116 31 12 4.0 

21 10 7.3 58 128 92 30 12 3.5 22 12 7.7 58 131 69 25 22 3.2 23 11 7.5 51 123 60 25 20 3.0 24 11 8.2 47 125 54 25 16 2.8 25 11 9.4 40 108 49 24 16 3.5 

26 10 8.6 39 91 54 22 13 4.4 27 9.9 9.4 37 84 57 22 12 5.0 28 9.8 8.7 39 84 53 20 9.8 7.2 29 9.8 8.1 (*) 48 85 53 19 8.8 6.8 30 9.3 7.6 - 65 67 56 18 8.4 8.4 31 9.3 - 99 18 8.4 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 320.1 14 5.8 10.3 635 November 243.0 10 5.4 8.10 482 December 217.0 7.0 430 - _ Calendar year - - - -

January 167.4 - - 5.4 332 February 185.6 - - 6.4 368 March 272.8 - 8.8 541 April 978 65 13 32.6 1,940 May 2,474 131 43 79.8 4,910 June 2,797 141 49 93.2 5,550 July 1,098 59 18 35.4 2,180 August 592.4 72 8.4 19.1 1,180 September 161.8 8.4 2.8 5.39 321 

Water year 1947-48 9,507.1 141 2.8 26.0 18,870 

Peak discharge fbase, 80 sec.-ft.).- May 22 (1 a.m.) 144 sec.-ft.; June 3 (12 p.m.) 150 sec.-ft.; June 20 (1 a.m.) 71 sec.-ft. •Winter discharge measurement made on this day. Note.- No gage-height record Nov. 15 to Mar. 31 (stage-discharge relation affected by ice during most? period); discharge computed on basis of 1 discharge measurement, weather records, and rec- ords for stations on nearby streams. 
- -- 

- - 

263 

RIO GRANDE BASIN 

Conejos River at Platoro, Colo. 

Location.- Water-stage recorder, lat. 37°21'00", long. 106°31'30", in sec. 22, T. 36 N., 

H. 4 b., half a mile east of Platoro and 5 miles downstream from Adams Fork. 

Drainage area.- 44.4 square miles. 

Records available.- April 1937 to September 1948 (no winter records). 

Extremes.- Maximum discharge during year, 1,300 second-feet June 3 (gage height, 3.26 

feet), from rating curve extended above 680 second-feet; minimum daily recorded, 7.0 

second-feet Sept. 15, 16. 

1937-48: Maximum discharge, 1,310 second-feet June 25, 1941, from rating curve extended above 850 second-feet; maximum gage height, that of June 3, 1948; minimum daily 

discharge recorded, 3.5 second-feet Oct. 20, 1943. 

Remarks.- Records excellent above 50 second-feet and good below except those for periods of 

---17FF-Effect or no gage-height record, which are fair. No diversion above station. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

.37 a205 576 382 47 16 

36 a198 688 346 44 14 1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

',''..;':31 .T ,7 )74.9,2 ' =-- ,7 ,.V.::= 4= 

V-IMI 

34 a190 998 320 44 13

33 a180 920 311 44 1:

34 a280 829 289 133 11

34 360 805 264 83 11

b30 400 754 260 65 10

b35 346 772 232 67 9.4

b45 244 822 200 55 8.8

38 180 822 180 48 8.8

145 888 170 47 9.7 b36 

b34 127 959 154 58 8.8

160 829 142 47 7.9 31 

b33 268 718 127 41 7.9

400 654 119 36 7.0 b32 

'500 593 111 35 7.0 34 549 576 100 31 7.9 25 637 544 105 30 7.9 b33 760 538 127 31 7.9 17 

9.7 784 470 125 28 7.9

855 425 98 26 7.9 b10 868 328 83 38 7.9 b12 742 260 77 38 7.9 b15 593 240 73 30 7.9 b14 475 252 79 33 9.7 19 

19 378 306 71 27 19

351 333 67 22 17 19 387 324 63 21 17 b17 

16 544 338 59 19 13

18 637 374 55 17 14

688 50 16 -

Second- Runoff in Month • Maximum Minimum Mean foot-days acre-feet 

October 1,645 82 30 53.1 3,260 November 799.7 45 9.7 26.7 1,590 December - - - Calendar year -- - -

January - - February - - - - - March - - - - April - - - May 13,431 868 127 433 26,640 June 17,933 998 240 598 35,570 July 4,839 382 50 156 9,600 August 1,301 133 16 42.0 2,580 September 315.2 19 7.0 10.5 625 

Water year - - - - -

Peak discharge (base, 830 sec.-ft.).- May 21 (4 p.m.) 1,140 sec.-ft.; June 3 (8 p.m.) 1 300 sec.- ft.; June 12 (9 p.m.) 1,200 sec.-ft. •Winter discharge measurement made on this day. a No gage-height record; discharge computed on basis of weather records and records for station near Mogote. b Stage-discharge relation affected by Ice. 

905771 0-50- 18 
264 RIO GRANDE BASIN 

Conejos River near Mogote, Colo. 

Location.- Water-stage recorder, lat. 37°03', long. 106°11', in SW,i- ec. 34, T. 33 N., 

H. 7 h., three-quarters of a mile downstream from Fox Creek and 5f miles west of Mogote. 

Drainage area.- 282 square miles. 

Records available.- September 1899 to March 1900, April 1903 to September 1913, and October 1933 to September 1948 in reports of Geological Survey. September 1899 to March 

1900 and April 1903 to September 1948 in reports of State engineer. 

Average discharge.- 46 years (1902-48), 371 second-feet. 

Extremes.- Maximum discharge during year, 3,530 second-feet June 4 (gage height, 5.22 

feet); minimum daily, 32 second-feet Jan. 28. 

1899-1900, 1903-48: Maximum discharge, 9,000 second-feet Oct. 5, 1911 (gage height, 

8.50 feet, site and datum then in use), from rating curve extended above 3,500 secondfeet; minimum, 18 second-feet (discharge measurement) Dec. 19, 1939. 

Remarks.- Records good except those for period of ice effect, which are fair. No diversion 

Discharge, in second-feet, water year October 1947 to September 1948 

June 'UMEH; 1MSI H 

n MAE Hal Eci .5,

or regulation. 

Dey Oct. Nov. Dec. Jan. Feb. Mar. Apr. May July Aug. Sept. NNN 

74 11. 

NN "'0 

tN4 010 0 0OJ JO - 000000w ww ww N,WWW,AW0-4 000000000000000000,N.M000000000

1 139 110 •77 50 47 56 .105 882 142 53

2 126 105 75 47 .46 45 108 822 137 53 3 123 99 64 .50 55 52 126 697 129 53 4 110 91 62 52 53 50 142 675 126 51 5 102 83 54 53 50 .47 129 668 192 46

6 96 81 58 54 52 55 139 609 246 44 7 94 60 57 55 43 57 149 603 182 43 8 88 67 54 58 40 57 166 554 182 42 9 84 84 59 61 37 64 198 492 158 43 10 83 88 47 62 38 63 251 447 135 49

11 96 67 48 64 40 63 326 419 120 46 12 139 66 49 56 36 52 255 398 126 45 13 136 77 48 46 40 56 225 365 126 42 14 213 70 52 49 43 60 247 334 112 41 15 202 57 54 50 46 57 326 316 102 40

16 205 63 .57 52 .48 50 462 296 97 39 17 182 77 55 44 53 54 572 279 89 41 18 175 62 57 54 57 52 704 270 88 41 19 175 69 57 .54 60 48 728 334 95 40 20 169 56 57 52 62 52 839 331 86 41

21 175 47 59 54 60 43 917 296 78 39 22 179 59 57 54 57 .44 980 255 83 38 23 156 72 57 49 62 49 822 240 92 39 24 149 66 56 52 59 56 610 229 86 38 25 129 91 58 49 56 66 476 235 83 40

26 123 83 56 46 59 69 434 249 82 77 27 123 83 56 37 62 67 476 208 71 73 28 123 72 56 32 60 83 688 184 65 70 29 119 72 57 40 60 94 962 174 62 64 30 123 66 58 43 - 123 1,100 160 58 56 31 113 - 56 44 - 108 - 146 56

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 4,249 213 83 137 8,430 November 2,243 110 47 74.8 4,450 December 1,767 77 47 57.0 3,500 

Calendar year 1947 110,633 1,940 41 303 219,400 

January 1,563 64 32 50.4 3,100 February 1,481 62 36 51.1 2,940 March 1,892 123 43 61.0 3,750 April 13,662 1,100 105 455 27,100 

May 51,399 2,910 712 1,658 101,900 

June 50,288 3,050 680 1,676 99,740 

July 12,167 882 146 392 24,130 August 3,486 246 56 112 6,910 September 1,427 77 38 47.6 2,830 

Water year 1947-48 145,624 3,050 32 398 288,800 

Peak discharge (base, 1,700 sec.-ft.).- May 22 (5 a.m.) 3,260 sec.-ft.; June 4 (6:15 a.m.) 3,530 

•Winter discharge measurement made on this day. Note.- Stage-discharge relation affected by ice Dec. 6 to Mar. 29. 
265 RIO GRANDE BASIN 

Conejos River near La Sauses, Colo. 

Location.- Two water-stage recorders (two channels), lat. 37°23', long. 105°45', in 

ect,s T. 35 N., R. 11 E., half a mile upstream from mouth and 2 miles north of La 

Sauses. Datum of gage (north channel) is 7,495.02 feet above mean sea level (Colorado 

State Highway Department bench mark). 

Drainage area.- 887 square miles. 

Records available.- October 1933 to September 1948 in reports of Geological Survey. 

March 1921 to September 1948 in reports of State engineer. 

Average discharge.- 27 years, 236 second-feet. 

Extremes.- Maximum discharge during year, 2,430 second-feet June 5; no flow July 30 to 

Aug. b, Aug. 11, 16-18, Aug. 30 to Sept. 1. 

1921-48: Maximum discharge, 3,890 second-feet May 15, 1941; no flow at times in 

1934 and 1948. 

Remarks.- Records good except those for periods of ice effect or no gage-height record 

which are fair. Diversions above station for irrigation. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 

2 

27 

27 45 

49 •53 

53 59 

.61 55 

.57 150 

120 298 

172 1,330 

1,340 1,680 1,810 93 

76 0 

0 0 .4 3 

4 27 

26 46 

49 61 

70 61 

61 63 

64 115 

103 163 

176 1,180 

1,050 1,780 2,150 63 56 0 0 .6 .8 5 21 52 73 60 62 .93 173 1,040 2,380 55 0 .9 

6 

7 20 

20 52 

52 71 

70 60 

61 58 54 88 

87 161 1,170 153 1,290 2,290 

2,090 48 42 0 .2 .9 

.9 8 23 53 65 66 52 87 145 1,410 1,930 24 .3 1.1 9 

10 24 24 54 

54 65 63 66 

66 50 52 88 

84 147 1,240 158 850 1,650 

1,600 3.8 2.6 .3 .1 1.5 1.7 

11 

12 

13 

14 

15 

21 

21 

21 

24 

28 

54 

54 

54 

48 

45 

66 

60 

63 

62 

56 

68 

70 

65 

62 

58 

.55 

a51 

s51 

.58 

.65 

88 

83 

83 

89 

87 

224 

321 

259 

212 

208 

591 

480 

396 

487 

729 

1,520 

1,540 

1,530 

1,380 

1,080 

1.8 

1.7 

2.2 

2.2 

.a 

O 

.3 

.6 

.3 

.1 

1.5 

1.5 

1.5 

1.3 

1.1 

16 

17 

18 

19 

20 

45 

36 

39 

37 

40 

44 

44 

42 

44 

48 

.60 

60 

60 

60 

58 

59 

57 

56 

.58 

47 

.1,170 77 

80 

84 

86 

90 307 1,080 97 453 1,340 130 675 1,430 134 886 1,600 150 1,030 1,880 799 

608 

474 

339 

482 

.8 

.8 

.8 

.8 

.6 

0 

0 

0 

.1 

.2 

1.2 

1.7 

2.1 

2.1 

2.4 

21 

22 

23 

24 

25 

46 

48 

38 

42 

43 

48 

48 

50 

50 

46 

56 

56 

54 

55 

56 

42 

47 

51 

52 

SO 

87 

87 

93 

100 

98 

151 1,280 135 1,490 150 1,510 203 1,130 254 687 

2,080 

2,220 

2,260 

2,270 

2,150 

496 

464 

415 

300 

231 

.5 

.5 

.4 

.4 

.8 

.2 

.4 

.4 

.5 

.5 

2.3 

2.7 

3.2 

2.9 

3.0 

26 

27 

28 

29 

30 

31 

47 

44 

41 

43 

43 

45 

46 

47 

47 

53 

53 

54 

53 

53 

53 

56 

59 

46 

41 

33 

42 

93 

54 

97 

101 

116 

137 

221 438 205 326 194 378 208 645 228 1,090 216 

2,200 

1,710 

1,460 

1,330 

1,360 

1,460 

176 

130 

138 

132 

126 

1.0 

1.0 

.4 

.1 

0 

0 

.4 

.4 

.4 

.1 

0 

4.9 

5.0 

5.1 

4.9 

5.1 

. Month Secondfoot-days Maximum Minimum Mean Runoff in 

acre-feet 

October 

November 

December 

1,031 

1,471 

1,854 

48 

54 

73 

20 

42 

53 

33.3 

49.0 

59.8 

2,040 

2,920 

3,680 

Calendar year 1947 42,764.6 1,440 1.5 117 84,840 

January 

February 

March 

April 

May 

June 

July 

August 

September 

1,729 

2,160 

4,211 

15,185 

42,413 

31,720 482.0 5.8 

64.3 

70 

137 

254 1,510 

2,270 

2,380 93 .6 

5.1 

33 

50 

83 

145 

396 

126 0 

0 

0 

55.8 

74.5 

136 

506 1,368 

1,057 15.5 .19 

2.14 

3,430 

4,280 

8,350 

30,120 

84,120 

62,920 956 

12 

128 

Water year 1947-48 102,326.1 2,380 0 280 203,000 

Peak discharge (base, 2,000_sec.-ft.).- May 24 (10 a.m.) 2,340 sec.-ft.; June 5 (1:45 p.m.) 2,430 sec.-ft. •Winter discharge measurement made on this day. a No gage-height record on main channel (stage-discharge relation affected by ice during period); discharge computed on basis of 1 discharge measurement, weather records, and records for stations on 

nearby stream.. Note.- Stage-discharge relation affect by ice Dec. 13, 14, 19 on secondary channel ana Jan. 17 co F.F.-TOF on main channel. No gage-height record on secondary channel Jan. 1 to Feb. 18, Mar. 4, 5 (stage-discharge relation affected by ice during moat of periods); discharge computed on basis of 

5 discharge measrrementa, weather records, and record. for station on main channel. 
			

	 	

		

		

	 	

		

		

		

		

		

266 RIO GRANDE BASIN 

San Antonio River at Ortiz, Colo. 

Location.- Water-stage recorder, lat. 37°00', long. 106°02', in New Mexico, In sec. 19, 

T. 32 N., R. 9 E., a quarter of a mile south of Colorado-New Mexico State line, half 

a mile south of Ortiz, and half a mile upstream from Los Pinos Creek. 

Drainage area.- 110 square miles. 

Records available.- October 1933 to September 1948 in reports of Geological Survey. January to October 1915, May 1919 to October 1920, and October 1924 to September 1948 in 

reports of State engineer. (No winter records prior to 1941.) 

Extremes.- Maximum discharge during year, 395 second-feet Apr. 30 (gage height, 3.04 

Feet); no flow Oct. 2, July 13 to Aug. 4, Aug. 7-11, Aug. 15 to Sept. 24. 

1915, 1919-20, 1924-48: Maximum discharge, 1,750 second-feet Apr. 15, 1937 (gage 

height, 5.38 feet), from rating curve extended above 1,100 second-feet; no flow at 

times in most years. 

Remarks.- Records fair except those for periods of ice effect or no gage-height record, 

which are poor. A few small diversions above station for irrigation. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 0.3 2.7 (•) 8 309 65 2.0 0 0 

2 0 2.7 8 259 46 2.0 0 0 

3 .2.7 (• ) 9 250 49 2.4 0 0 

4 .8 2.9 11 228 36 1.8 0 0 

5 .9 2.5 10 242 30 1.3 .1 0 

6 .9 13 242 26 .9 .2 0 

7 .6 19 245 24 0 0 

8 1.3 2.9 26 218 24 .5 0 0 

9 1.5 45 150 21 0 0 

10 1.5 70 113 19 0 0 

11 .6 120 106 16 0 0 

12 .2 (a) .111 95 18 1.0 0 

13 1.1 101 93 14 O .2 0 

14 4.9 93 131 11 0 1 

15 13 161 129 9.6 0 o 0 

) 2.2 ) 1.0 1.5 2.5 

16 7.6 ( • ) 239 126 7.9 0 0 0 

17 5.8 262 104 6.4 0 0 0 

18 4.4 279 93 4.9 0 0 0 

19 3.8 276 84 5.2 0 0 0 

20 3.5 279 75 27 0 0 0 

) 2.8 

21 2.9 315 62 11 0 0 0 

22 3.5 352 48 12 0 0 0 

23 5.2 321 37 17 0 0 0 

24 3.8 220 33 8.5 0 0 0 

25 3.5 153 82 5.8 0 0 .1 

26 2.9 116 90 4.1 0 0 .2 

27 2.9 104 75 3.5 0 0 .2 

28 3.2 142 64 3.5 0 0 .2 

29 2.9 279 54 4.1 0 0 .2 

30 3.2 324 41 5.2 0 0 .1 31 3.8 38 0 0 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 90.8 13 0 2.93 180 

November 84.0 2.80 167 

December 68.2 2.2 135 

Calendar year 1947 8,420.9 333 23.1 16,710 

January 31.0 1.0 61 February 43.5 - - 1.5 86 

March 77.5 - - 2.5 154 

April 4,466 352 8 149 8,860 

May 3,916 309 33 126 7,770 

June 534.7 65 3.5 17.8 1,060 

July 12.2 2.4 0 .39 24 

August 1.6 1.0 0 .05 3.2 

September 1.0 .2 0 .03 2.0 

Water year 1947-48 9,326.5 352 25.5 18,500 

Peak discharge (base, 330 sec.-ft.).- Apr. 22 (2 a.m.) 392 sec.-ft.; Apr. 30 (2:15 a.m.) 395 sec.- ft.; May 5 (1 a.m.) 349 sec.-ft. •Winter discharge measurement made on this day. Note.- Stage-discharge relation affected by ice Nov. 6-11. No gage-height record Nov. 12 to Apr. 11 rgtige-discharge relation affected by ice during most of period); discharge computed on basis of 

4 discharge measurements and weather records. 
		 		

					

				

				

-

RIO GRANDE BASIN 267 

San Antonio River at mouth, near Manassa, Colo. 

Location.- Water-stage recorder, lat 37°11,, long. 106°53,, in sec. 21, T. 34 N., R. 10 E., 1 mile upstream rrom mouth and 2f miles east of Manassa. 

Drainage area.- 348 square miles. 

Records available.- October 1933 to September 1948 in reports of Geological Survey. April 

1923 to September 1948 in reports of State engineer. 

Average discharge.- 25 years, 98.5 second-feet. 

Extremes.- Maximum discharge during year, 1,160 second-feet May 21 (gage height, 5.68 

--17-67T no flow Oct. 1-24, Aug. 18, Aug. 21 to Sept. 30. 

1923-48; Maximum discharge, 2,620 second-feet May 14, 1941 (gage height, 6.26 

feet), from rating curve extended above 2,200 second-feet; no flow at times in most 

years. 

Remarks.- Records excellent above 20 second-feet and fair below except those for period 

--75777 gage-height record, which are poor. Diversions above station for irrigation. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

00000 0000000000000000 0000 

0.9 3.0 960 732 49 0.5 

2 1.4 (*) 2.9 856 678 43 .5

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

IS 

16 

17 

18 

19 

20 

21 

22 

23 

24 

1.7 2.8 819 756 45 1.4 2.9 770 94C 41 2.9 876 896 37 .8 

2.8 944 763 29 .7 .2.7 1,000 687 18 .6 2.5 1,010 610 14 .6 3.8 812 518 10 .4 24 592 492 6.7 .4 

76 495 448 2.5 .3 ...4 100 408 455 2.2 .4 .4 67 347 420 1.9 .4 .4 57 480 342 1.7 .4 .4 80 624 272 1.5 .3 0.4 0.6 10 .4 (*) 168 756 207 1.5 .2 .4 254 774 150 1.4 .1 .4 335 749 122 1.4 0 .4 (a') 432 840 102 1.4 .1 .4 538 990 192 1.5 .1 

.4 69C 1,080 177 1.2 0 .4 (0) 816 1,C20 168 1.2 0 .4 826 944 158 .9 0 .4 582 836 120 .9 0 

25 .4 410 960 88 1.2 0 

26 .4 338 928 68 .9 0 

27 .4 316 660 64 .8 0 28 .4 368 588 77 .8 0 29 .4 595 558 79 .6 0 30 .4 860 538 66 .5 0 31 - i 550 .5 0 

Month Secondfoot-days Maximum Minimum Mean Runoff in 

acre-feet 

October 2.7 0.7 0 0.09 5.4 November• 16.5 1.7 .4 .55 33 December 12.4 - .4 25 

Calendar year 1947 20,997.9 936 0 57.5 41,650 

January 

February 

March 

18.6 

72.5 

310 

-

-

-

-

-

-

.6 

2.5 

10 

37 

144 

615 April 

May 

June 

7,958.3 

23,764 

10,847 

860 1,080 940 

2.5 347 

64 

265 

767 

362 

15,790 

47,140 

21,510 July 

August 

September 

321.2 7.8 

0 

49 .8 

0 

.5 

0 

0 

10.4 .25 

0 

637 

15 

C 

Water year 1947-48 43,331.0 1,080 C 118 85,950 

Peak discharge (base, 500 sec.-ft.).- Apr. 23 (10 a.m.) 924 sec.-ft.; May 1 (12:30 p.m.) 1,100 sec.-ft.; gay 7 4 p.m.) 1,140 sec.-rt.; May 21 (2 p.m.) 1,160 sec.-ft.; June 4 (1 p.m.) 995 sec.- ft. 

•Winter discharge measurement made on this day. Note.- No gage-height record Nov. 12 to Apr. 6 (stage-discharge relation affected by ice during mo8t-i5r period); discharge computed on basis of 4 discharge measurements and weather records. 
268 RIO GRANDE BASIN 

Los Pinos River near Ortiz, Colo. 

Location.- Water-stage recorder, lat. 36°58', long. 106°03, , in New Mexico, in N1 sec. 34, 

T. 32 N., R. 8 E., 1 mile south of Colorado-New Mexico State line, 2 miles southwest of 

Ortiz, and 21 miles upstream from mouth. 

Drainage area.- 167 square miles. 

Records available.- October 1933 to September 1948 in reports of Geological Survey. January 1914 to November 1920 and October 1924 to September 1948 in reports of State engineer. (No winter records most years.) 

Extremes.- Maximum discharge during year, 1,660 second-feet May 20 (gage height, 4.67 

feet), from rating curve extended above 1,000 second-feet; minimum daily recorded, 10 

second-feet Sept. 23, 24. 

1914-20, 1924-48: Maximum discharge, 3,160 second-feet May 12, 1941 (gage height, 

5.77 feet), from rating curve extended above 1,600 second-feet; minimum observed, 4.0 

second-feet Dec. 17, 1945 (discharge measurement), but may have been less during period 

of no gage-height record. 

Remarks.- Records excellent above 75 second-feet and good below except those for period of 

ce effect or no gage-height record, which are fair. Diversions above station for 

irrigation. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct-. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 

2 

3 

4 

5 

35 

35 

35 

34 

28 

31 

29 

*28 

27 

27 

(•) 

( • ) 

039 

b42 

b50 

b60 

61 

882 

790 

765 

810 

942 

655 

619 

795 

695 

603 

116 

103 

96 

90 

81 

21 

21 

20 

21 

40 

12 

11 

12 

12 

12 

6 

7 

8 

9 

10 

26 

27 

25 

24 

23 

b20 

63 

71 

74 

91 

128 

1,020 

1,110 954 

671 

503 

547 

531 

487 

483 

463 

81 

80 

66 

59 

52 

45 

28 

27 

24 

21 

11 

11 

11 

11 

15 

11 

12 

13 

14 

15 

22 

48 

44 

54 

77 

(*)

b14 

> 20 > 15 17 25 

168 

.135 

109 

122 

168 

419 

380 

459 

683 

876 

459 

451 

401 

352 

314 

49 

46 

42 

39 

37 

20 

20 

21 

20 

19 

15 

13 

12 

11 

11 

16 

17 

18 

19 

20 

76 

68 

58 

55 

50 

b17 

(•) 250 930 331 882 471 948 563 1,040 679 1,230 

278 

254 

239 

248 

289 

32 

30 

31 

43 

37 

19 

18 

19 

20 

19 

11 

11 

12 

12 

12 

21 

22 

23 

45 

45 

45 b19 

785 1,140 790 942 639 800 233 

266 

215 

30 

28 

27 

18 

18 

18 

11 

11 

10 

24 41 427 731 180 28 16 10 

25 40 328 825 152 38 16 11 

26 36 296 647 140 45 16 20 

27 

28 

29 

30 

31 

35 

35 

34 

34 

34 

b25 328 

471 

760 

894 

615 

575 

587 

595 

635 

136 

140 

136 

120 

32 

26 

26 

24 

23 

15 

13 

13 

12 

12 

20 

19 

18 

16 

Month Secondfoot-days Maximum Minimum Mean Runoff in 

acre-feet 

October 1,268 77 22 40.9 2,520 November 617 31 20.6 1,220 December 620 20 1,230 

Calendar year 1947 39,573 1,140 108 78,510 

January 

February 

March 

April 

May 

June 

July 

August 

September 

465 

493 

775 9,393 

24,386 

10,881 

1,537 630 

384 

894 1,230 795 

116 

45 

20 

39 

380 

120 

23 

12 

10 

15 

17 

25 

313 

787 

363 

49.6 

20.3 

12.8 

922 

978 1,540 

18,630 

48,370 

21,580 

3,050 

1,250 762 

Water year 1947-48 51,449 1,230 141 102,100 

Peak discharge (be/1e_, 900 sec.-ft.).- Apr 21 (9:30 p.m.) 1,010 sec.-ft.; Apr. 30 (10 p.m.) 1,260 

sec.-ft.; May 7 (10:36 p.m.) 1,510 sec.-ft.; May 20 (3:15 a.m.) 1,660 sec.-ft 

•Winter discharge measurement made on this day. b Stage discharge relation affected by ice. 

Note.- No gage-height record Dec. 1 to Apr. 1 (stage-discharge relation affected by ice during 

mail-Or period); discharge computed on basis of 4 discharge measurements and weather records. 
RIO GRANDE BASIN 269 

Culebra Creek at San Luis, Colo. 

Location.- Water-stage recorder and 12-foot Parshall flume, lat. 37°11', long. 105°26', in 

---TIFF7-35, T. 3 N., R. 72 W., Beaubien Grant survey, 1 mile southeast of San Luis and 1 

miles upstream from Rito Seco. 

Drainage area.- 220 square miles. 

Records available.- January 1910 to December 1911 and October 1933 to September 1948 in 

reports or Geological Survey. May 1909 to December 1910 and April 1927 to September 

1948 in reports of State engineer. 1911-19 (unpublished) in files of State engineer. 

Average discharge.- 31 years (1909-19, 1927-48), 65.0 second-feet. 

Extremes.- Maximum discharge during year, 310 second-feet June 10 (gage height, 3.05 feet); 

minimum daily, 11 second-feet Jan. 5. 

1909-19, 1927-48: Maximum discharge, 654 second-feet July 1, 1947 (gage height, 5.09 

feet), from rating curve extended above 300 second-feet; minimum daily, 5 second-feet 

Sept. 14-16, 1934. 

Remarks.- Records excellent except those for periods of no gage-height record, which are 

g ood. Diversions above station for irrigation. Flow regulated by Sanchez Reservoir on 

Ventero Creek (capacity, 103,000 acre-feet). 

Discharge, ip second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 42 36 27 13 a16 37 18 15 73 173 147 93 

2 40 34 23 12 a29 34 19 15 92 187 227 65 

3 41 40 34 21 29 29 20 26 98 146 215 48 

4 37 39 34 17 30 15 18 28 91 41 202 47 

5 17 36 34 11 30 17 18 18 80 38 159 41 

6 

7 

41 

41 36 

34 26 

17 12 

20 29 23 16 

17 19 

32 17 

15 97 

177 213 

275 121 118 53 80 

8 40 32 34 27 17 15 17 15 216 286 98 99 

9 39 18 33 27 27 15 16 15 228 260 148 66 

10 38 36 33 24 a27 29 16 17 255 235 157 64 

11 

12 

13 

14 

38 

29 

26 

41 

36 

36 

37 

36 

33 

32 

30 

17 

14 

27 

29 

29 

a27 

a35 

844 

a35 

29 

30 

31 

32 

17 

18 

16 

15 

21 

19 

17 

16 

250 

217 

187 

224 

205 

234 

235 

257 

129 

110 

102 

79 

40 

26 

44 

31 

15 38 31 33 29 14 32 15 21 244 278 79 32 

16 36 17 32 25 14 31 15 16 258 272 127 30 17 35 35 33 13 14 35 16 17 278 233 124 28 18 34 36 33 12 12 38 15 17 251 187 128 27 

19 17 36 33 18 13 38 15 17 217 202 92 27 20 34 29 26 24 13 37 15 18 32 181 72 26 

21 32 23 15 26 14 36 16 30 93 157 48 26 22 32 32 16 26 15 36 16 21 107 155 53 26 23 28 18 32 27 17 35 15 23 102 138 82 27 24 26 34 26 27 16 23 20 32 132 155 98 28 25 23 35 15 15 15 20 19 ,33 169 146 73 29 

26 17 35 21 31 15 18 22 25 144 213 72 13 27 18 36 23 32 16 17 18 27 139 240 50 a12 28 41 35 15 a32 24 18 17 25 235 238 38 a33 29 41 27 20 831 36 21 17 32 234 234 41 a12 30 41 16 27 a30 . - 19 17 37 217 228 96 a12 31 40 23 a25 18 88 185 96 -

Month Secondfoot-days Maximum Minimum Mean Runoff in 

acre-ffet 

October 1,043 42 17 33.6 2,070 November 961 40 16 32-0 1,910 December 830 34 15 26.8 1,650 

Calendar year 1947 22,300.5 299 9.5 61.1 44,250 

January 

February 

March 

706 

646 

818 

32 

44 

38 

11 

12 

15 

22.8 

22.3 

26.4 

1,400 

1,280 

1,620 

April 

May 

June 

527 

733 5,137 

32 

88 

278 

15 

15 

32 

17.6 

23.6 

171 

1,050 

1,450 

10,190 July 

August 

September 

6,227 

3,381 

1,165 

286 

227 

99 

38 

38 

12 

201 

109 

38.8 

12,350 

6,710 

2,310 

Water year 1947-48 22,174 286 11 60.6 43,990 

a No gage-height record; discharge computed on basis of discharge measurement made on Feb. 14 and record of regulation by Sanchez Reservoir furnished by observer. 
270 RIO GRANDE BASIN 

Culebra Creek below San Luis, Colo. 

Location.- Water-stage recorder, lat. 37°12', long. 105°26', in sec. 27, T. 3 N., R. 72 

W., beaublen Grant survey, 500 feet downstream from bridge on State Highway 159, 600 

feet downstream from Rito Seco, and a quarter of a mile southwest of San Luis. 

Drainage area.- 255 square miles. 

Records available.- August 1938 to September 1948 (no winter records prior to 1941). 

Extremes.- Maximum discharge during year, 398 second-feet July 16 (gage height, 3.05 

feet); minimum daily, 24 second-feet Jan. 5. 

1938-48: Maximum discharge, 866 second-feet May 30, 1942 (gage height, 4.54 feet), 

from rating curve extended above 400 second-feet; minimum daily, 13 second-feet Apr. 21, 

1946. 

Remarks.- Records excellent except those for periods of no gage-height record, which are 

good. Diversions above station for irrigation. 

Discharge, in second-feet, water year October1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 47 50 41 26 30 34 35 30 71 166 154 99 

2 46 32 36 25 43 49 36 30 81 184 227 73 

3 45 53 48 34 43 49 35 42 91 132 216 56 

4 •42 53 48 30 44 35 35 46 85 51 204 55 5 27 51 48 24 44 37 34 33 71 41 160 50 

6 42 50 42 25 43 36 3C 32 83 200 122 ds 

7 44 51 30 33 33 37 47 31 159 274 120 81 

8 45 48 46 40 43 35 32 30 189 289 100 105 

9 42 38 46 40 43 35 31 30 219 262 154 69 

10 44 48 44 37 43 5C 32 33 253 236 164 68 

11 41 52 46 27 52 58 33 37 250 202 140 46 

12 37 53 45 40 62 58 37 34 208 233 118 37 

13 34 55 43 42 31 60 31 29 176 230 112 53 

14 52 55 30 42 21 59 30 28 216 253 87 38 

15 47 50 46 4e 31 59 30 34 233 280 80 40 

16 45 36 45 38 29 58 32 36 25( 280 132 39 

17 45 52 46 26 30 60 29 37 271 233 127 39 

18 42 51 46 25 30 60 30 33 ?47 184 132 38 

19 29 51 46 31 32 60 30 34 210 197 99 38 

20 42 46 39 37 30 62 28 34 45 176 78 37 

21 42 38 28 39 32 58 32 41 91 147 52 34 

22 44 42 29 39 34 60 32 36 116 147 53 34 

23 40 33 45 40 35 60 31 36 103 129 83 37 

24 38 51 39 40 34 56 42 40 129 147 99 34 

25 36 50 28 28 32 49 36 41 164 143 78 38 

26 31 50 34 44 33 44 40 36 143 210 73 27 

27 30 51 36 45 44 41 36 37 136 238 56 25 

28 51 51 28 45 44 41 31 32 236 236 47 26 29 55 45 33 44 56 42 30 34 233 236 51 25 30 53 32 40 43 36 31 38 213 230 101 25 31 52 36 38 - 34 81 179 99 -

Month Secondfoot-days Maximum Minimum Mean Runoff in 

acre-feet 

October 1,310 55 27 42.3 2,600 November 1,418 55 32 47.3 2,810 December 1,237 48 28 39.9 2,450 

Calendar year 1947 26,648 346 16 73.0 52,850 — 

January 

February 

March 

1,109 

1,101 

1,522 

45 

62 

62 

24 

29 

34 

35.8 

38.0 

49.4 

2,200 

2,180 

3,040 

April 

May 

June 

998 1,125 

4,972 

47 

81 

271 

28 

28 

45 

33.3 

36.3 

166 

1,980 

2,230 

9,860 

July 

August 

September 

6,145 

3,519 

1,431 

289 

227 

105 

41 

47 

25 

198 

114 

47.7 

12,190 

6,980 

2,840 

Water year1947-48 25,897 289 24 70.8 51,360 

Note.- No gage-height record Dec. 12 to Feb. 19, Mar. 4-8, Aug. 5-8, Sept. 29, 30; discharge com- pute-3-3n basis of discharge measurements made Jan. 13, Feb. 14 and records for station at San Luis. 
		

RIO GRANDE BASIN 271 

Costilla Creek above reservoir, near Costilla, N. Mex. 

Location.- Water-stage recorler and concrete control, lat. 36°54'25", long. 105°15'00", in 

Sangre de Cristo Grant, 2e miles by road upstream from Costilla Dam and 17 miles southeast of Costilla, Taos County. 

Records available.- April 1937 to September 1948 (irrigation seasons only). 

Extremes.- Maximum discharge recorded during year, 132 second-feet May 25 (gage height, 

1.40 feet); minimum daily recorded, 1.5 second-feet Nov. 5, Sept. 15. 

1937-48: Maximum discharge recorded, 346 second-feet May 11, 1944 (gage height, 

1.30 feet); maximum gage height, 1.90 feet May 15, 1938, former site and datum; minimum daily discharge recorded, 1.2 second-feet Nov. 7, 1944. 

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are poor. No diversion above station. 

Discharge, in second-feet, water year October1947 to September1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 3.5 2.8 b2.2 - 52 11 4.0 2.2 2 

3 3.2 3.0 2.8 2.6 b2.4 -

- 46 

54 11 11 3.8 4.0 2.2 2.2 4 3.0 2.2 - - 46 11 5.2 1.9 5 3.0 1.5 - - 37 10 7.5 1.7 

6 

7 3.0 

3.0 1.9 

a2.5 - -

- 33 

36 8.8 8.3 4.6 4.0 1.7 1.9 8 2.8 a2.5 - - 31 7.5 4.6 2.0 9 2.8 a2.5 - 29 6.3 3.8 2.4 10 2.8 a2.5 - 26 6.3 3.4 2.0 

11 

12 

13 

14 

2.8 

3.2 

3.2 

4.6 

a2.5 

a2.5 

a2.5 

a2.5 

-

-

22 

21 

18 

18 

31 

30 

23 

20 

5.9 

5.6 

5.2 

4.6 

3.3 

3.5 

4.0 

6.7 

1.9 

1.7 

1.7 

1.7 15 4.3 a2.5 20 17 4.6 3.5 1.5 

16 4.0 a2.5 23 15 4.6 3.0 1.7 17 

18 .3.5 

3.2 a2.5 

a2.5 - 27 

29 14 

12 4.6 

7.5 3.0 

3.3 1.7 

1.7 19 3.2 b2.2 33 14 9.3 3.8 1.7 20 3.2 b2.2 - 34 14 9.3 3.8 1.9 

21 3.0 b2.2 - 36 14 7.9 3.3 1.7 22 3.2 b2.2 37 18 7.5 3.5 1.7 23 3.0 b2.2 - 31 14 5.9 3.3 1.7 24 3.0 b2.2 60 11 5.2 3.5 1.7 25 3.0 b2.2 79 10 5.9 3.8 2.2 

26 2.8 b2.2 - 58 9.8 5.2 2.8 3.0 27 3.0 b2.2 66 9.8 4.9 2.6 2.8 28 2.8 b2.2 46 12 4.6 2.2 2.8 29 2.8 b2.2 a45 18 4.3 2.2 2.4 30 2.8 b2.2 - a45 12 4.6 2.2 2.6 31 2.6 a50 - 4.3 2.2 

Month Secondfoot-days Maximum Minimum Mean Runoff in 

acre-feet 

October 97.3 4.6 2.6 3.14 193 November 70.2 2.8 1.5 2.34 139 December ,, -

Calendar year - - - - ----- -- - _ - _ _-- - -

January - - February 

March - -

- -

- April 

May 11-31 - 798 

-

79 

-

18 38.0 1,580 June 708.6 54 9.8 23.6 1,410 July 

August 

September 

212.7 

114.3 

60.0 

11 

7.5 

3.0' 

4.3 

2.2 

1.5 

6.86 

3.69 

2.00 

422 

227 

119 

Water year - - - - -

•Winter discharge measurement made on th s day. a No gage-height record; discharge computed on basis of weather records and records for Casias Creek, Santistevan Creek, Latir Creek, and Rio Hondo at Arroyo Hondo. b Stage-discharge relation affected by ice. 
		

		

272 RIO GRANDE BASIN 

Costilla Creek below Reservoir, near Costilla, N. Mex. 

Location.- Water-stage recorder and concrete control, lat. 36°52,25", long. 105°16,55", 

in Sangre de Cristo Grant, 125 feet downstream from outlet of reservoir at Costilla 

Dam and 18 miles southeast of Costilla, Taos County. 

Records available.- April 1937 to September 1948 (irrigation seasons only prior to 1945). 

Extremes.- Maximum daily discharge during year, 190 second-feet June 6; minimum daily 

recorded, 0.3 second-foot May 26-31. 

1937-48: Maximum discharge recorded 286 second-feet May 9, 10, 1942 (gage height, 

2.65 feet); no flow at times. 

Remarks.- Records fair. Diversions above station for irrigation. Flow regulated by 

Costilla Reservoir (capacity, 15,700 acre-feet). 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 5.8 2.9 23 127 45 76 

2 5.8 2.9 46 84 109 76 

3 5.8 2.9 14 68 118 35 

4 6.2 2.9 98 112 112 15 

5 6.2 2.9 183 133 94 31 

6 6.2 2.9 190 126 43 68 

7 6.2 2.9 160 127 23 74 

8 6.2 2.9 110 140 41 70 

9 6.2 2.6 100 62 89 48 

10 6.2 2.6 106 48 89 25 

11 6.2 b2.5 0.5 137 76 94 20 

12 6.2 b2.5 .7 144 157 113 24 

13 6.2 b2.5 .7 144 168 49 30 

14 6.2 b2.5 .5 146 167 17 30 

15 6.2 b2.5 .7 93 84 25 30 

16 3.2 b2.5 .9 121 32 72 23 

17 .2.6 b2.5 .9 132 56 110 14 

18 2.6 b2.0 .9 129 140 122 12 

19 2.6 .9 116 139 104 12 

20 2.6 .7 121 133 36 12 

21 2.6 .7 132 127 21 12 

22 2.6 .7 132 116 32 17 

23 2.6 .7 132 57 65 27 

24 2.6 .5 132 29 78 25 

25 2.6 .5 132 41 78 23 

26 2.9 129 98 66 23 

27 2.9 129 106 31 24 

28 2.9 .3 127 110 17 24 

29 2.9 132 121 24 16 

30 2.9 .3 150 59 46 14 

31 2.9 3 25 65 

Month Secondfoot-days Maximum Minimum Mean Runoff in 

acre-feet 

October 135.8 6.2 2.6 4.38 269 November 1-18. 47.9 2.9 2.0 2.66 95 

December 

Calendar year 

January 

February 

March 

-

- -

-

- -

- April 

May 11-4, 

June 

12.3 3,640 .9 190 

-

.3 14 .59 121 

-

24 7,220 

July 

August 

September 

3,068 

2,028 930 

168 

122 

76 

25 

17 

12 

99.0 

65.4 

31.0 

6,090 

4,020 

1,840 

Water year 

•Winter discharge measurement made on this day. b Stage-discharge relation affected by ice. 
273 RIO GRANDE BASIN 

Costilla Creek near Costilla, N. Mex. 

Location.- Water-stage recorder, lat. 36°56'30", long. 105°30.10", in Sangre de Cristo 

Grant, 1 mile upstream from diversion dam and 2 miles southeast of Costilla, Taos 

County. 

Records available.- March 1936 to September 1948 (irrigation season only 1936-43). 

Extremes.- Maximum daily discharge during year, 304 second-feet June 6; minimum daily, 

3.5 second-feet Dec. 10. 

1936-48: Maximum discharge, 1,150 second-feet May 11, 1942 (gage height, 5.37 feet, 

site and datum then in use); minimum daily recorded, 2 second-feet Dec. 30, 1946. 

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are poor. Diversions above station for irrigation. Flow regulated by Costilla 

Reservoir (capacity, 15,700 acre-feet). 

Rating table, water year 1947-48, except periods of ice effect 

(gage height, in feet, and discharge, in second-feet) 

(Shifting-control method used June 8 to Sept. 30) 

1.1 7.0 2.0 45 

1.2 4.7 2.5 107 

1.4 9.9 3.0 202 

1.6 18 3.4 310 

Discharge, in second-feet, water year October1947 to September1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 18 11 b5.0 7.6 14 16 12 85 137 165 42 78 

2 17 12 b5.0 7.6 15 13 16 82 180 132 101 79 

3 .17 14 b5.0 7.6 16 13 21 82 148 102 135 65 

4 16 12 b4.5 7.6 16 8.7 24 74 174 96 125 26 

5 15 14 4.4 7.6 17 10 25 72 292 148 126 23 

6 14 14 b4.3 7.9 17 13 29 72 304 153 79 58 

7 15 13 b4.0 7.9 17 12 34 78 298 150 43 72 

8 15 15 b3.9 8.2 16 13 37 85 236 159 39 74 

9 14 b13. b3.7 8.2 15 14 43 84 198 142 85 66 

10 14 b14 3.5 8.7 15 12 49 82 189 77 92 41 

11 14 Ill 4.0 9.3 14 11 68 86 224 72 92 31 

12 15 b12 b3.9 8.4 15 11 59 84 247 153 112 30 

13 16 bll 3.8 7.2 17 15 44 68 226 170 92 36 

14 24 b10 5.4 7.6 17 15 43 64 212 172 39 36 

15 24 b10 5.4 8.2 17 13 52 67 178 137 33 36 

16 20 b10 5.2 8.7 17 17 68 77 151 62 55 36 

17 16 b10 4.2 6.8 17 14 67 86 172 54 98 26 

18 14 b10 4.5 8.7 18 14 76 95 170 138 121 20 

19 14 b10 5.2 7.9 17 12 86 104 159 161 123 19 

20 14 b10 5.6 b9 18 14 86 118 176 161 74 19 

21 13 a9 6.5 b9 16 12 86 120 176 157 39 18 

22 14 a9 6.5 *9.0 13 8.4 85 118 191 144 38 17 

23 13 a9 7.0 9.0 14 12 86 113 180 106 64 25 

24 13 a9 6.5 9.3 13 15 85 137 165 55 85 30 

25 12 • b9 6.8 8.7 14 18 a82 182 159 53 88 28 

26 12 b9 7.0 9.3 14 10 a78 155 157 96 79 33 

27 11 b9 6.8 9.0 15 12 a70 159 157 118 60 34 

28 12 b6 6.5 12 14 14 a70 144 161 123 30 35 

29 12 b6 6.8 13 17 18 a72 135 161 137 27 30 

30 13 b5 7.9 13 19 78 121 176 110 42 23 

31 13 7.6 13 - 18 130 47 59 -

Month Secondfoot-days Maximum Minimum Mean Runoff in 

acre-feet 

October 464 24 11 15,0 920 

November 318 15 5 10.6 631 

December 166.4 7.9 3.5 5.37 330 

_ Calendar year 1947 16,055.8 244 3 44.0 31,840 

January 

February 

March 

275.1 

455 

413.1 

13 

18 

19 

6.8 

13 

8.4 

8.87 

15.7 

13.3 

546 

902 

819 

April 1,731 86 12 57.7 3,430 

May 3,159 182 64 102 6,270 

June 5,754 304 137 192 11,410 

July 3,750 172 47 121 7,440 

August 2,319 135 27 74.8 4,600 

September 1,144 79 17 38.1 2,270 

Water year 1947-48 19,948.6 304 3.5 54.5 39,570 

• Winter discharge measurement made on this day. 

a No gage -height record; discharge computed on basis of weather records, available recorder trace, 

and records for station at Garcia, Colo. 

b Stage-discharge relation affected by ice. 
274 RIO GRANDE BASIN 

Costilla Creek at Garcia, Colo. 

Location.- Water-stage recorder, lat. 36°59.40", long. 105°32,00", in Sangre de Cristo 

urant, 300 feet upstream from New Mexico-Colorado State line and half a mile south 

of Garcia. 

Records available.- June 1944 to September 1948 (no winter records) 

Extremes.- Maximum daily discharge recorded during year, 234 second -feet June 6, 7; no 

Now at times. 

1944-48: Maximum daily discharge recorded, that of June 6, 7 , 1948; no flow at 

times. 

Remarks.- Records fair except those for periods of ice effect or no gage-height record, 

which are poor. Diversions above station for irrigation. Flow regulated by Costilla 

Reservoir (capacity, 15,700 acre-feet). 

Discharge, in second-feet, water year'October1947 to September1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 

2 

3 

4 

5 

0 

0 

0 

0 

.5 

53 

54 

55 

50 

44 

62 

94 

79 

83 

179 

20 

17 

15 

12 

7.3 

7.0 

5.4 

7.0 

2.6 

2.3 

0 

0 

1.0 

1.3 

.4 

6 

7 

8 

9 

10 

0 

0 

b2 

b2 

b2 

40 

42 

45 

47 

45 

234 

234 

170 

88 

47 

7.0 

8.5 

7.7 

7.0 

7.0 

1.3 

..1 

5.0 

1.4 

2.3 

.6 

2.0 

8.1 

14 

7.3 

11 

12 

13 

14 

b2 

b2 

bl 

bl 

46 

46 

41 

36 

a 68 

al00 

a88 

a65 

7.0 

5.4 

5.4 

28 

6.6 

4.2 

4.5 

.5 

3.4 

2.6 

2.6 

1.7 

15 bl 38 a40 a50 0 1.8 

16 

17 

bl 

bl 42 

48 a26 

al4 a12 

a6 0 3.0 2.3 

2.0 

18 

19 

20 

bl 

bl 

bl 

59 

69 

61 

51 

45 

51 

a16 

all 

a16 

a5 

a5 

a5 

7.3 

9.9 

3.2 

1.3 

1.2 

1.0 

21 

22 

23 

24 

25 

bl 

al 

al 

al 

.b1 

62 

62 

58 

55 

53 

51 

41 

31 

43 

112 

a15 

a30 

a36 

a25 

a22 

4.5 

4.7 

3.6 

4.2 

7.7 

0 

0 

0 

0 

.4 

1.2 

.3 

1.3 

1.7 

1.7 

26 

27 

50 

45 117 94 23 

24 4.5 

3.1 .4 

.7 1.2 

1.0 

28 41 62 24 4.2 .1 2.1 

29 43 58 20 4.7 0 1.5 

30 

31 

50 55 

58 

27 7.3 

8.9 0 

.1 1.8 

Month Secondfoot-days Maximum Minimum Mean Runoff in 

acre-feet 

October 

November 1-25. 0 

23.5 0 2 0 0 0 

.94 47 December 

Calendar year 

January 

February 

March 

April 18-30 

May 

June 

708 1,641 

1,960 

69 

117 

234 

41 

31 

11 

54.5 

52.9 

65.3 

1,400 

3,250 

3,890 

July 

August 

September 

294.7 

78.3 

68.4 

50 

9.9 

14 

3.1 

0 

0 

9.51 

2.53 

2.28 

585 

155 

136 

Water year 

* Winter discharge measurement made on this day. 

a No gage-height record; discharge computed on basis of weather records and records for Castilla Creek near Costilla and Acequia Madre and Cerro Canal near Costilla. b Stage-discharge relation affected by ice. 
			 			

275 RIO GRANDE BASIN 

Casias Creek near Costilla, N. Mex. 

Location.- Water-stage recorder and concrete control, lat. 36°54'05", long. 105°15'30", 

in Sangre de Cristo Grant, 200 feet downstream from road crossing, 2.5 miles by road 

upstream from Costilla Dam, 17 miles southeast of Costilla, Taos County. 

Records available.- April 1937 to September 1948 (irrigation seasons only). 

Extremes.- Maximum discharge recorded during year, 96 second-feet May 31 (gage height, 

1.53 feet); minimum daily determined, 0.2 second-foot Nov. 3-7. 

1937-48: Maximum discharge recorded, 121 second-feet Aug. 10, 1943, maximum gage 

height recorded, 1.90 feet June 14, 1938 (backwater from Costilla Reservoir); minimum 

daily determined, that of Nov. 3-7, 1947. 

RemaCks.- Records good except those for periods of ice effect, which are poor. No diversion above station. 

Day Oct. 

1 6.6 2 6.2 3 6.2 4 5.8 5 5.3 

6 5.8 7 5.3 8 5.8 9 5.3 10 5.3 

11 5.3 12 5.3 13 5.3 14 6.6 15 6.6 

16 •5.8 17 4.8 18 4.4 19 4.4 20 4.0 

21 4.0 22 4.4 23 3.6 24 4.0 25 1.5 

26 1.1 27 1.5 28 1.1 29 .7 30 .7 31 .3 

October 

November 1-7 

December 

Calendar year 

January 

February 

March 

April 

May 11-31 

June 

July 

August 

September 

Water year 

Rating table, water year 1947-48 (gage height, in feet, and discharge in second-feet) (Shifting-control method used May 11-30) 

0.6 0.3 1.0 21 1.4 70 .7 4.4 1.1 30 1.5 90 .8 8.9 1.2 40 1.6 110 .9 14 1.3 53 

Discharge, in second-feet, water year October 1947 to September 1948 

Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. 

b0.3 

b.3 

b.2 

b.2 

b.2 

b.2 

b.2 

Month 

•Winter discharge measurement made on this day. b Stage-discharge relation effected by ice. 

72 33 15 74 33 14 88 32 14 78 31 15 74 31 22 

80 31 16 82 33 14 74 30 15 72 28 14 72 26 13 

25 65 25 13 18 78 24 13 15 68 23 14 14 60 22 13 16 65 20 11 

20 60 22 11 24 57 22 10 28 57 25 12 35 57 25 12 42 57 26 11 

49 57 25 11 53 57 24 12 55 51 21 11 70 43 20 11 74 37 23 10 

68 34 20 8.4 5.8 

65 34 18 8.0 4.8 55 36 18 7.6 4.8 53 43 17 7.1 4.4 55 35 18 6.6 4.8 72 16 6.6 

Second- Runoff in Maximum Minimum Mean foot-days 

133.0 1.6 

906 1,817 762 

371.3 

152.7 

Sept. 

6.6 

6.2 

5.8 

5.8 

5.3 

5.3 

5.3 

5.8 

6.6 

5.8 

5.3 

5.3 

4.8 

4.4 

4.0 

4.4 

5.3 

4.8 

4.8 

4.4 

4.4 

4.4 

4.0 

4.0 

5.3 

acre-feet 

6.6 0.3 4.29 264 .3 .2 .23 3.2 

74 14 43.1 1,800 88 34 60.6 3,600 33 16 24.6 1,510 22 6.6 12.0 736 6.6 4.0 5.09 303 
		

RIO GRANDE BASIN 276 

Santistevan Creek near Costilla, N. Mex. 

Location.- Water-stage recorder and metal Parshall flume, lat. 36°53,05", long. 

105'16,50", in Sangre de Cristo Grant, 200 feet upstream from road crossing, 0.9 mile 

upstream from Costilla Dam, and 16 miles southeast of Costilla, Taos County. 

Records available.- April 1937 to September 1948 (irrigation seasons only). 

Extremes.- Maximum discharge recorded during year, 12 second-feet June 11 (gage height, 

1.2V feet); minimum daily determined, 0.4 second-foot Nov. 1, 4, 6, 7. 

1937-48: Maximum discharge recorded, 18 second-feet Aug. 11, 1941 (gage height, 

1.73 feet); minimum daily determined, that of Nov. 1, 4, 6, 7, 1947. 

Remarks.- Records good. No diversion above station. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. may June July Aug. Sept. 

1 0.7 0.4 7.2 3.5 2.2 1.3 2 .7 .5 - 8.0 3.5 2.1 1.3 3 .7 .5 - 8.9 3.4 2.1 1.2 4 .7 .4 9.5 3.2 2.2 1.2 5 .7 .5 - 9.8 3.1 2.2 1.2 

6 .7 b.4 - 9.9 3.2 2.0 1.2 7 .7 b.4 - 9.9 3.3 2.0 1.2 8 . .7 - 9.8 3.2 2.0 1.2 9 .6 - - 9.5 3.2 1.9 1.2 10 .7 - - 9.5 3.2 1.9 1.2 

11 .7 - 1.6 9.7 3.2 1.9 1.2 12 .7 - 1.6 9.4 3.2 1.9 1.2 13 .7 - 1.6 8.9 3.0 2.0 1.2 14 .8 - 1.5 8.6 2.9 1.9 1.2 15 .7 - 1.7 8.4 2.8 1.8 1.2 

16 .7 - 1.9 8.0 3.0 1.7 1.2 17 ..7 - 2.2 7.5 3.0 1.7 1.2 18 .7 - 2.2 7.3 3.0 1.9 1.2 19 .7 2.6 7.4 3.1 1.7 1.2 20 .7 - 3.3 6.6 2.7 1.6 1.1 

21 .7 - 3.7 6.1 3.0 1.6 1.1 22 .7 - 4.1 6.3 2.8 1.6 1.1 23 .6 - 4.4 5.7 2.6 1.5 1.1 24 .6 - 6.0 5.1 2.5 1.6 1.0 25 .5 5.8 4.6 2.6 1.4 1.2 

26 .5 - 6.0 4.2 2.4 1.4 1.2 27 .5 5.9 4.1 2.3 1.3 1.1 28 .6 - 5.9 4.1 2.3 1.3 1.0 29 .6 - 6.0 4.0 2.2 1.3 1.0 30 .6 5.9 3.6 2.2 1.3 1.0 31 .5 - 6.6 2.2 1.4 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 20.4 0.8 0.5 0.66 40 November 1-7 3.1 .5 .4 .44 6.1 

December - -

Calendar year - - - - - - - - - _ January - - - - - February - - - - March -- - - April - - - - May 11-31 80.5 6.6 1.5 3.83 160 

June 221.6 9.9 3.6 7.39 440 

July 89.8 3.5 2.2 2.90 178 

August 54.4 2.2 1.3 1.75 108 

September 34.9 1.3 1.0 1.16 69 

Water year - - - -

•Winter discharge measurement made on this day.

b Stage-discharge relation affected by ice. 
RIO GRANDE BASIN 277 

Principal diversions from Costilla Creek, N. Mex. and Colo. 

Records of discharge are collected at nine gaging stations on four diversions from 

Costilla Creek. Each of these stations is equipped with a water-stage recorder and a 

Parshall flume. Water diverted is used for irrigation in the Sangre de Cristo Grant in 

New Mexico and Colorado below the gaging station near Costilla. Records are collected 

during irrigation seasons only. 

Acequia Madre at Costilla, N. Mex.- Lat. 36°58'00", long. 105°30'50", 275 feet downstream 

from diversion dam. Records available. May 1944 to September 1948. Acequia diverts 

from right bank of Costilla Creek. 

Mesa ditch near Garcia, Colo.- Lat. 36°59'50", long. 105°30'45". 429 feet north of milepost No. 13b+54 on New Mexico-Colorado State line. Records available, June 1944 to 

September 1948. Ditch diverts from right bank of Acequia Madre for irrigation In 

Colorado. 

Middle ditch at Garcia, Colo.- Lat. 36°59'50", long. 105°31'25", 300 feet north of New 

Mexico-Colorado State line. Records available, July 1944 to September 1948. Ditch 

diverts from Acequia Madre fcr irrigation in Colorado. 

Cordillera ditch at Garcia, Job:..- Lat. 36°59'40", long. 105°31'40", 570 feet south of 

New Mexico-Colorado State line. Records available, June 1944 to September 1948. Ditch 

diverts from Acequia Madre for Irrigation in Colorado. 

Cerro Canal at Costilla, N. Mex.- Lat. 36°57'50". long. 105°31'10", 1,400 feet downstream 

from diversion dam. Records available, April 1944 to September 1948. Canal diverts 

from left bank of Costilla Creek. 

Cerro Canal near Jaroso, Colo.- Lat. 36°59'35", long. 105°34'35". Records available, June 

1944 to September 1948. Flow measured is delivered to Colorado and to New Mexico 

branch of Cerro Canal. 

New Mexico Branch Cerro Canal near Jaroso, Colo.- Lat. 36°59'35", long. 105°34'45", 225 

feet downstream from head gate. Records available, June 1944 to September 1948. Canal 

diverts from left bank of Cerro Canal for irrigation in New Mexico. 

Alire ditch at Garcia, Colo.- Lat. 36°59'45", long. 105°32'05", 430 feet southeast of mile 

post No. 13/+b4 on New Mexico-Colorado State line. Records available, June 1944 to 

September 1948. Ditch diverts from left bank of Costilla Creek for irrigation in 

Colorado. 

Eastdale No. 1 intake canal near Jaroso, Colo.- Lat. 37°02'40", long. 105°37'00", 1,100 

feet downstream from head gate. Records available, June 1944 to September 1948. Canal 

diverts from right bank of Costilla Creek to Eastdale Reservoir No. 1 for Irrigation in 

Colorado. 

Diversions In acre-feet, water year October 1947 to September 1948 

East- Cerro Cerro Canal New Mexico Acequia Mesa Middle Cordillera All dale Month Canal at near Jarosa, Branch Madre ditch ditch ditch ditch No. 1 Costilla Colo. Cerro Canal Intake 

October 277 67 0 35 558 235 43 0 7.5 November c70 b0 a0 all c278 b172 b14 b6.3 0 December - 0 January - - - - - - 0 February - - - - - - - 0 March - - - _ _ - - - .8 April 

May 

June 

e50 

776 

1,920 

dO 

203 

563 

dO 

0 

6.0 

026 

91 

51 

f413 

1,460 

4,530 

e316 

973 

3,140 

e23 

170 

749 

dO 

0 

19 

1,130 

1,520 

868 July 

August 1,970 

1,470 

715 

448 

15 

0 

9.7 

27 

4,000 

2,540 

2,720 

1,550 

910 

500 

66 

40 

25 

5.8 September 869 136 0 25 1,060 738 198 31 5.4 

Water year - - - - -- - - 3,560 

a Nov. 1-17. 

b Nov. 1-18. 

c Nov. 1-19. 

d Apr. 16-30. 

e Apr. 17-30. 

f Apr. 18-30. 
- - 

279 RIO GRANDE BASIN 

Latir Creek near Cerro, N. Mex. 

Location.- W4te-stagerecorder and concrete Parshall flume, lat 36°49'45", long. 105°32' 

45", in StSWt sec. 15, T. 30 N., R. 13 E., at mouth of canyon, 100 feet upstream from 

heading of Cerro community ditch and 6 miles northeast of Cerro. 

Drainage area.- 10 square miles. 

Records available.- April 1937 to September 1948 (irrigation seasons only prior to 1946). 

Extremes.- Maximum discharge recorded during year, 45 second-feet June 3 (gage height, 

1.53 feet); minimum daily, 2.6 second-feet Dec. 25-27, 30, 31, Mar. 5, 6, 8. 

1937-48: Maximum discharge determined, 121 second-feet_June 3, 1942, from rating 

curve extended above 56 second-feet by logarithmic plotting; maximum gage height recorded, 4.2 feet July 19, 1945; (log jam) minimum daily discharge recorded, 0.6 second-foot May 9, 1937. 

Remarks.- Records fair except those for periods of no gage-height record, which are poor. 

/To diversion above station. 

Discharge, in aecond-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

!'f'!'n

'l ! !

"'n' ' 

! "':'!". 

ns:An. n."!-" -"."!" 

mmm Wmm m W000000000.,....... 0,,,,,.+ w.m ..

1 .

2.8 2.8 3.0 3.0 

wwwwww ww w ww 0000 00000oplvwwvw ooww o; o; ,,; NN cs;c t..; c, (si wi ypi ei r; $4oi yi ei wi wi Ki w;44 ,4 y; 

5.5 4.1 3.8 11 30 16 5.5 4.3 

2 5.3 4.3 4.0 11 34 13 5.5 4.0 3 4.9 4.3 a3 3.3 3.8 9.2 40 12 5.7 3.8

4 4.9 4.1 a3 3.0 3.6 9.7 841 12 5.9 3.8

5 4.9 4.0 83 3.0 3.8 11 a38 11 8.2 3.6

6 4.7 3.3 a3 3.1 4.0 11 a39 11 6.6 3.6 7 4.7 3.8 a3 3.1 a4 12 a40 11 6.1 3.6 3.8 12 a40 10 5.9 3.6 3.8 9.5 a39 4.0 8.4 a38 9.2 5.3 3.8 9.2 5.1 3.6 

3.8 8.4 837 8.7 5.1 3.4 3.6 7.7 836 8.2 5.3 3.6 3.4 8.0 a33 8.0 6.1 3.4 3.8 11 830 7.5 5.9 3.4 

8 4.5 4.3 a3 3.1 9 4.5 4.5 a3 3.1 10 4.0 4.5 a3 3.1 

11 4.5 4.5 a3 3.3 12 4.7 4.5 a3 3.3 13 4.9 3.8 a3 3.3 14 5.7 3.6 a3 3.3 15 5.7 3.4 a3 3.3 14 a27 7.0 5.1 3.4

a3 3.3 a3 3.3 

4.7 

16 5.1 3.6 5.5 16 a23 6.8 4.9 3.4 17 5.1 3.6 6.8 20 21 7.0 4.7 3.4 18 4.7 3.6 a3 3.4 8.7 22 21 6.8 4.7 3.4 19 4.7 3.6 33 3.4 11 23 21 8.0 5.1 3.4 20 4.3 3.6 a3 3.3 12 25 23 3.2 4.9 3.3

4.3 3.8 a3 3.3 10 26 20 7.5 4.7 3.3 9.2 26 19 7.3 5.7 3.4 6.6 22 17 6.8 5.3 3.4 5.3 24 16 6.8 4.9 3.4 4.7 21 16 7.7 5.1 4.0 

4.3 18 15 7.0 4.7 4.1 4.5 19 15 6.4 4.5 5.7 5.7 20 17 6.4 4.5 4.9 9.5 21 15 5.9 4.5 4.3 11 25 15 5.7 4.5 4.1 29 5.7 4.3 

21 

22 5.1 3.6 a3 3.1 23 4.5 3.6 2.8 3.0 4.3 a3.5 2.8 2.8 2.8 2.8 

2.8 2.8 2.8 2.8 2.8 2.8 2.8 2.8 2.8 

2.8 -

24 

25 4.5 3.4

26 4.1 3.4

27 4.7 3.4 28 4.5 3.4

29 4.3 3.4 30 4.5 3.4 

31 4.1 

Second- Runoff in Month Maximum Minimum Mean foot-day. acre-feet 

October 146.2 5.7 4.0 4.72 290 November 113.9 4.5 3.3 3.80 226 December 93.1 3.6 2.6 3.00 185 

Calendar year 1947 2,746.1 28 2.3 7.52 5,450 

January 91.0 3.0 2.8 2.94 180 February 89.7 3.4 2.8 3.09 178 March 96.3 4.0 2.6 3.11 191 April 172.7 12 3.4 5.76 343 May 510.9 29 7.7 16.5 1,010 June 813 41 15 27.1 1,610 July 263.8 16 5.7 8.51 523 August 164.3 8.2 4.3 5.30 326 September 112.4 5.7 3.3 3.75 223 

Water year 1947-48 2,667.3 41 2.6 7.29 5,280 

Peak discharge (base, 30 aec.-ft,1,- May 23 (7:40 p.m.) 37 sec.-ft.; May 31 (7 p.m.) 37 sec.-ft.; June 3 (6 p.m.) 4Ssec.-ft. a No gage-height record; discharge computed on basis of weather records and records for Rio Hondo at Arroyo Hondo. 
RIO GRANDE BASIN 279 

Red River near Red River, N. Mex. 

(Formerly published as Rio.Colorado near Red River, N. Mex.) 

Location.- Water-stage recorder, lat. 36°37,20", long. 105°23,20", in NE-, sec. 36, T. 28 

N., H. 14 E., 100 feet downstream from confluence of Middle and East Forks and 6 miles 

south of Red River. Datum of gage is 9,394.2 feet above mean sea level (plane-table 

levels by Division of Water and Power). 

Records available.- July 1940 to September 1948 (no winter records prior to 1944). 

Extremes.- Maximum discharge during year, 100 second-feet May 22 (gage height, 2.40 feet); 

minimum daily, 3 second-feet Jan. 28. 

1940-48: Maximum discharge recorded, 218 second-feet June 19, 1941, from rating 

curve extended above 160 second-feet by logarithmic plotting; maximum gage height, 3.19 

feet Jan. 16, 1947 (ice Jam); minimum daily discharge, that of Jan. 28, 1948. 

Remarks.- Records good except those for periods of ice effect or doubtful or no gage-height 

record, which are poor. No diversion above station. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 7.5 6.1 5.4 4.5 4 5 6.0 24 75 30 16 9.6 

2 7.5 6.1 5.8 4.5 4.5 5 6.5 21 73 27 15 10 

3 7.1 6.1 5.8 5 4.5 5 7 20 82 26 15 9.2 

4 6.8 5.4 5.4 5.5 4.5 4.5 7 20 88 25 17 8.7 

5 6.8 5.4 5.4 5.8 4 4 7.5 20 86 24 34 8.7 

6 6.8 4.9 5.8 5.2 .4 4.5 8 22 82 23 26 8.3 

7 6.8 4.9 5.8 5.2 4 5 8 24 80 27 22 8.3 

8 6.8 5.4 5.8 4.6 4 5 8 26 78 33 20 8.3 

9 6.8 5.4 5.8 4.3 4 5 8.5 24 78 31 19 8.3 

10 6.4 5.8 5.8 4.0 4 5 9 23 77 30 17 8.3 

11 6.8 5.4 5.5 3.8 4 5 9.5 22 73 28 17 8.3

12 6.8 5.4 5 4.0 3.5 4.5 11 21 72 27 16 7.9 

13 7.5 5.4 4.5 3.8 4 5 12 20 72 26 17 7.9 

14 9.2 5.4 4.5 4.3 4.5 5 10 21 70 24 16 7.9 

15 8.7 5.4 4.5 4.3 4.5 5 12 28 65 24 15 7.9 

16 8.3 5.8 4 4.3 5 5 13 34 60 23 14 7.9 17 7.9 5.4 4 4.5 5 5 14 41 57 22 14 7.9 18 7.5 5.2 4 4.5 5 5 15 50 56 22 14 7.9 19 7.5 5.4 3.5 4.0 5 5 18 56 54 26 14 7.9 20 7.1 5.4 3.5 4.5 5 5 20 65 73 30 13 7.9 

21 7.1 5.8 3.5 5.0 5 5 21 77 65 30 13 7.9 22 7.1 5.8 4 4.6 4.5 5 20 90 57 26 14 7.9 23 6.4 5.8 4.5 4.0 5 5.5 18 82 50 23 12 7.5 24 6.4 6.1 5 3.8 5 5.5 17 77 42 22 12 7.9 25 6.4 5.8 5 3.8 5.5 6 16 70 38 24 12 9.6 

26 6.1 5.8 5 3.5 5 6 15 62 36 24 11 10 27 6.4 5.8 5 3.5 5 6.5 14 57 36 20 10 9.6 28 6.4 5.4 5 3 5 6.5 16 59 36 20 10 9.2 29 6.4 5.4 5 3.5 5 6.5 18 62 34 19 10 8.7 30 6.4 5.4 5 4 - 6 22 68 32 19 9.6 8.7 31 6.1 - 5 4 - 6 - 77 - 17 9.6 

Second- Runoff in Month foot-days acre-feet Maximum Minimum Mean 

October 217.8 9.2 6.1 7.03 432 November 166.8 6.1 4.9 5.56 331 December 151.8 5.8 3.5 4.90 301 -

Calendar year 1947 6,622.7 100 3.5 18.1 13,130 . -

January 133.3 

-

5.8 3 4.30 264 February 132.0 5.5 3.5 4.55 262 March 162.0 6.5 4 5.23 321 April 387.0 22 6.0 12.9 768 May 1,363 90 20 44.0 2,700 June 1,877 88 32 62.6 3,720 July 772 33 17 24.9 1,530 August 474.2 34 9.6 15.3 941 September 254.1 10 7.5 8.47 504 

-

Water year 1947-48 6,091.0 90 3 16.6 12,070 . Peak dischar base, 50 sec.-ft. .- May 22 (5:30 p.m.)100 sec.-ft.; June 4 5 a.m. 90 sec.-ft.; June 20 (7 a.m.') 73 sec.-ft.; July 19 (9:30 p.m.) 50 sec.-ft.

Note.- Stage-discharge relation affected by ice Nov. 7, 14, 15, Dec. 7, 8, Dec. 10 to Jan. 4, Jan. 137:7737-21, Jan. 26 to Feb. 1 (doubtful gage-height record Dec. 14, 18, 21, 22, Dec. 25 to Jan. 1).

No gage-height record Feb. 2 to May 12, July 6, 7; discharge computed on basis of weather records and

records for other stations in basin. 

905771 0 - 50 - 19 
		

280 RIO GRANDE BASIN 

Red River near Questa, N. Mex. 

(Formerly published as Rio Colorado near Questa, N. Mex.) 

Location - Water-stage recorder and concrete control lat. 36°42,10", long. 105°34,00", 

in 614 sec. 33, T. 29 N., R. 13 E. (projected), li miles upstream from,Cabresto Creek 

and 2 miles east of Questa. Datum of gage is 7,449.88 feet above mean sea level. 

Drainage area.- 112 square miles. 

Records available.- October 1912 to August 1915 (fragmentary) and October 1930 to 

septemMer 1948 in reports of Oeological Survey. October 1912 to December 1931 in 

reports of State engineer. 

Average discharge.- 32 years (1915-25, 1926-48), 65.0 second-feet. 

Extremes.- Maximum discharge during year, 463 second-feet May 22 (gage height, 1.48 feet); 

minimum daily, 13 second-feet Dec. 19-21. 

1930-48: Maximum discharge, 886 second-feet May 25, 1942 (gage height, 2.32 feet), 

from rating curve extended above 450 second-feet by logarithmic plotting; minimum 

daily, 6.3 second-feet Nov. 24, 25, 1931. 

Remarks.- Records good except those for periods of ice 'effect or no gage-height record, 

which are poor. Diversions above station for irrigation. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

rym :41 ca(71tr;,' F.,' A 0404,0 

1 21 18 21 

2 22 17 22 

3 21 16 22 

a17 818 23 122 310 94 37 19 

a17 a18 24 112 340 82 35 19 

817 a18 26 104 400 79 32 19 •

4 21 16 21 a17 a17 27 90 390 79 32 20 5 20 15 20 a17 815 28 94 370 74 46 20 

6 21 a14 21 a17 a14 31 108 330 72 54 20 7 20 17 20 a17 a16 31 117 330 70 46 21 8 20 19 20 a17 a18 32 127 300 74 42 21 9 20 20 18 ale 818 35 117 291 79 38 21 10 20 19 19 a18 818 40 112 291 82 36 22 

11 19 20 18 a17 818 49 100 265 84 34 22 

12 20 21 17 815 a16 49 94 282 79 34 22 13 19 20 16 a16 a17 42 84 274 66 35 23 14 26 19 16 a17 818 43 84 247 58 35 23 15 29 19 16 a17 alb 54 94 221 52 34 23 

16 27 19 15 17 26 18 15 

a18 18 66 122 205 50 32 23 

818 18 72 132 191 49 31 22 18 25 18 14 al8 18 87 153 177 49 31 22 19 24 18 13 a18 18 100 165 177 60 31 22 20 24 18 13 a18 19 97 184 265 77 32 22 

21 24 18 13 a18 19 97 282 212 90 32 22 22 24 18 14 a18 20 100 390 198 90 34 21 23 23 18 15 .18 21 97 340 171 60 34 21 24 23 19 18 a18 22 94 330 142 56 34 21 25 22 19 18 818 22 82 330 127 60 a30 21 

26 21 19 18 818 22 77 310 117 62 a25 21 27 21 20 18 818 23 72 291 112 54 a20 21 28 20 20 18 29 19 21 18 30 19 20 18 31 18 19 

a18 24 72 300 112 52 19 21 a18 24 90 282 112 47 18 21 24 112 282 104 40 19 21 - 23 - 291 39 19 -

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 678 29 18 21.9 1,340 November 553 21 14 18.4 1,100 December 544 22 13 17.5 1,080 — _ 

Calendar year 1947 19,310 516 13 52.9 38,310 

January 590 22 14 19.0 1,170 February 504 18 15 17.4 1,000 March 592 24 14 19.1 1,170 April 1,849 112 23 61.6 3,670 May 5,743 390 84 185 11,390 June 7,063 400 104 235 14,010 July 2,059 94 39 66.4 4,080 August 1,011 54 18 32.6 2,010 September 637 23 19 21.2 1,260 

Water year 1947-48 21,823 400 13 59.6 43,280 

Peak discharge (base, 160 sec.-ft.).- May 22 (6 a.m.) 463 sec.-ft.; June 3 (10:30 a.m.) 432 sec.-

ft.; June 20 (10 a.m.) 291 sec.-ft. 

•Winter discharge measurement made on this day. 

a No gage-height record; discharge computed on basis of available recorder trace, discharge measurement, weather records, and records for station near Red River and other stations with similar drainage conditions. 

b Stage-discharge relation affected by ice. 
2B3. 

RIO GRANDE BASIN 

Cabresto Creek near Questa, N. Mex. 

Location.- Water-stage recorder and 3-foot concrete Parshall flume, lat. 36°43'45", long. 

IG5'33,10", in SE*SE-i sec. 21, T. 29 N., R. 13 E., a qwter of a mile downstream from 

Llano ditch heading, 3 miles northeast of Questa, and 3f miles upstream from mouth. 

Records available.- September 1943 to September 1948. 

Extremes.- Maximum discharge during year, 78 second-feet May 25 (gage height, 2.67 feet); 

minimum daily, 2.5 second-feet Dec. 11, 13. 

1943-48: Maximum discharge, 135 second-feet May 13, 1945 (gage height, 3.32 feet); 

minimum daily, 2.4 second-feet Oct. 13, 1945. 

Remarks.- Records good except those for periods of no gage-height record, which are poor. 

Llano ditch (see p.282) diverts water half a mile above station for irrigation. Flow 

largely regulated by Cabresto Reservoir (capacity, 732 acre-feet). 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 8.2 5.2 3.8 4 4.9 4.5 4.9 49 40 10 8.2 5.5 2 8.1 5.2 4.0 3.5 4.9 4.4 5.6 46 45 10 8.1 5.3 3 7.8 5.0 4.0 3.5 4.9 4.4 6.2 42 45 11 7.9 5.2 4 7.4 5.0 3.8 4 4.8 3.4 6.6 36 45 11 7.9 5.2 5 7.3 4.5 3.0 4.5 4.5 2.6 6.6 38 40 10 9.6 5.0 

6 7.1 4.4 3.74 4.5 3.8 7,4 39 35 11 8.4 5.0 7 6.1 3.1 3.6 44 4.0 8.1 48 30 11 7.9 5.2 8 6.2 4.0 3.2 4.44 4.0 8.8 47 25 11 7.6 5.2 9 6.8 4.8 3.6 4.4 3.5 4.2 9.6 43 22 10 7.4 5.6 10 6.6 4.9 2.9 4.24 4.2 11 38 20 10 7.3 7.1 

11 6.5 4.5 2.5 4.1 4 4.0 13 35 18 11 7.3 6.0 12 6.5 4.5 3.0 4.13 3.5 12 31 16 11 7.3 5.2 13 6.6 4.9 2.5 3.7 4 4.0 11 26 14 11 7.1 4.8 14 7.4 4.8 3.0 4.14 4.2 10 27 12 10 7.1 4.4 15 7.1 3.8 3.5 4.44 4.2 13 30 12 10 6.8 4.2 

16 6.8 4.0 3.5 4.2 4.5 4.1 17 33 11 10 6.4 4.2 17 6.5 3.8 3.5 4.? 4.5 4.1 19 32 11 10 6.0 4.1 18 6.4 3.7 3.5 4.4 4.5 4.4 23 32 12 10 6.0 4.0 19 6.2 3.8 3.5 4.5 4.5 4.4 26 32 12 11 7.0 4.0 20 6.0 4.0 3.5 4.6 4.5 4.4 29 30 12 12 8.1 3.8 

21 5.9 3.2 3.5 4.8 4.5 4.1 31 29 10 11 7.1 3.8 

22 5.9 4.1 3.5 4.4 4 3.5 31 29 11 11 7.3 3.7 

23 5.8 4.1 3.5 4.1 4.5 4.5 30 31 11 13 7.1 3.6 

24 5.8 3.8 3.5 4.1 4.5 4.9 28 38 11 10 6.8 3.6 25 5.8 3.8 3.5 4.1 4.5 5.0 76 59 11 11 6.5 3.7 

26 5.6 3.8 4 4.2 4.5 4.4 25 50 11 10 6.4 4.2 27 5.5 4.0 4 4.0 4.5 4.5 25 40 11 9.4 6.2 5.0 28 5.3 3.7 4 4.2 4.4 5.2 26 25 11 9.1 5.9 4.8 29 5.2 3.7 4 4.8 4.5 5.6 31 25 11 8.8 5.9 5.2 30 5.2 3.7 4.5 5.0 5.6 42 30 10 3.4 5.8 5.0 31 5.2 4 5.0 - 5.5 - 35 8.2 5.8 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 198.8 8.2 5.2 6.41 394 November 125.8 5.2 3.1 4.19 250 December ' 109.6 4.5 2.5 3.54 217 

Calendar year 1947 4,143.7 -

68 2.5 11.4 8,220 

January 131.5 5.0 3.5 4.24 261 

February 125.4 4.9 3.5 4.32 249 

March 133.6 5.6 2.6 4.31 265 

April 542.8 42 4.9 18.1 1,080 

May 1,125 59 25 36.3 2,230 

June 585 45 10 19.5 1,160 

July 317.9 12 8.2 10.3 631 

August 220.2 9.6 5.8 7.10 437 

September 142.6 7.1 3.6 4.75 283 

-

Water year 1947-48 3,758.2 59 2.5 10.3 7,460 

Note.- No gage-height record D,c. 11 to Jan. 7, Feb. 5-27, May 26 t, June 13; discharge coxputei on-Viire of weather records and records for nearby stations. 
282 RIO GRANDE BASIN 

Llano ditch near Questa. N. Mex. 

Location.- Water-stage recorder and 3-foot Parshall flume, lat. 36°43,45", long. 

lUb'd3,00", in SE1SEi sec. 21, T. 29 N., R. 13 E., 31 miles northeast of Questa and 3t 

miles upstream from mouth of Cabresto Creek. 

Records available.- September 1943 to September 1948 (irrigation season only). 

Extremes.- Maximum daily discharge recorded, 30 second-feet May 24, 30, 31, June 1-3; no 

now at times. 1943-48: Maximum daily discharge recorded, 32 second-feet June 7, 11, 16-18, 1945; 

no flow at times. 

Remarks.- Records good except those for periods of no gage-height record which are poor. 

viten diverts water from right bank of Cabresto Creek for irrigation near Questa. 

Monthly discharge, in second-feet, water year October 1947 to September 1948 

Runoff in Month Maximum Minimum Mean acre-feet 

October 0.6 0 0.04 2.4 

November 1-14 0 0 0 0 

April 8-30 5.7 0 1.40 64 

May 30 4.3 15.6 969 

June 30 8.4 17.6 1,050 July 11 0 3.32 204 

August 0 0 0 0 September 0 0 0 0 

Water year - - - -
283 RIO GRANDE BASIN 

Rio Hondo near Valdez, N. Mex. 

Locatiokl.- Water-stage recorder and concrete control, lat. 36°32'20", long. 105°33'30", 

In Sf sec. 28, T. 27 N„ R. 13 E. (projected), a quarter of a mile upstream from 

Forest Service gate, if miles east of Valdez, and 9 miles upstream from mouth. 

Records available.- August 1934 to September 1948. October 1930 to September 1934 at 

site hair a mile downstream, below two diversions. 

Average discharge.- 14 years (1934-48), 42.8 second-feet. 

Extremes.- Maximum discharge during year, 163 second-feet May 22; maximum gage height 

recorded, 2.70 feet Dec. 15 (backwater from ice); minimum daily discharge, 8 secondfeet Jan. 28, Feb. 12. 1934-48: Maximum discharge, 541 second-feet May 13, 1941, from rating curve ex- tended above 300 second-feet by logarithmic plotting; maximum gage height, 5.59 feet 

(ice jam) Dec. 15, 1936, datum then in use; minimum daily discharge, 3.0 second-feet 

Jan. 21, 1935. 

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are poor. No diversion above station. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 15 14 12 12 10 11 13 64 116 56 32 24 

2 16 14 13 11 10 11 13 56 108 54 30 23 

3 15 14 13 13 10 .10 14 52 128 52 29 23 

4 15 14 12 13 10 9 15 47 130 52 30 22 

5 15 13 12 15 '10 9 15 47 133 50 54 21 

6 15 13 12 14 10 9 17 54 128 47 41 22 

7 14 b13 12 13.5 10 10 19 64 133 47 38 21 

8 14 b12 12 13 10 11 19 69 125 44 37 21 

9 15 13 12 12.5 10 11 20 66 125 41 35 21 

10 15 13 b12 12 9.2 11 22 56 125 40 34 21 

11 15 b13 bll 11.5 10 11 23 47 118 39 35 21 

12 15 13 b10 11 8 10 21 42 123 39 37 21 

13 15 13 b9 11 9 11 20 39 128 38 38 21 

14 18 13 b10 11 10 12 21 41 123 37 36 21 15 18 13 bll 11 11 13 25 54 118 36 34 19 

16 16 13 13 11 11 13 30 72 113 35 33 17 

17 16 13 12 11 11 13 33 87 108 34 32 17 

18 15 13 12.5 10.5 11 13 38 104 104 35 31 16 

19 15 13 13 10 11 12.5 44 102 111 40 30 16 

20 15 .13 14 10 13 12 45 104 116 47 28 16 

21 15 b13 13 11 13 11 45 135 100 41 28 16 

22 15 13 13 11 13 9.5 44 152 98 39 31 16 

23 15 13 13 11 14 10 41 138 89 36 28 16 

24 15 b13 13 11 14 12 38 120 83 35 27 16 

25 15 b12 14 11 14 13 34 111 78 37 27 16 

15 12 14 11 14 12 32 96 74 38 25 19 

27 

26 15 12 14 9 13 13 34 100 71 35 25 19 

28 15 12 14 8 12 13 38 98 66 35 25 18 

29 15 12 14 8.5 12 14 54 98 64 34 24 16 

30 15 12 14 9 - 13 69 100 58 34 24 16 

31 14 - 14 10 13 108 33 24 

Second- Runoff in

foot-days acre-feet Month Maximum Minimum Mean 

October 471 18 14 15.2 934 

November 387 14 12 12.9 768 

December 387.5 14 9 12.5 769 _ 

Calendar year 1947 12,193.5 228 9 33.4 24,200 -

January 347.5 15 8 11.2 689 

February 323.2 14 8 11.1 641 

March 356.0 14 9 11.5 706 

April 896 69 13 29.9 1,780 

May 2,523 152 39 81.4 5,000 

June 3,194 133 58 106 6,340 

July 1,260 56 33 40.6 2,500 

August 982 54 24 31.7 1,950 

September 572 24 16 19.1 1,130 

Water year 1947-48 11,699.2 152 8 32.0 23,210 

Peak discharge (base, 70 sec.-ft. .- Apr. 29 (11 p.m.) 72 sec.-ft.; May 8 3 p.m. 71 sec.-ft.; May 22 (1 a.m.) 163 sec.-ft.; July 19 (11 p.m.) 98 sec.-ft.; Aug. 5 (9 a.m.) 80 sec.-ft. •Winter discharge measurement made on this day. b Stage-discharge relation affected by ice. 

Note.- No gage-height record Dec. 16 to Feb. 4, Feb. 12 to Mar. 2, Mar. 4-22, June 14-17; discharge corTIFTEe'd on basis of discharge measurements, weather records, and records for nearby stations. 
284 RIO GRANDE BASIN 

Rio Hondo at Arroyo Hondo, N. Mex. 

Location.- Water-stage recorder and concrete control, lat. 36°31'55", long. 105°41'05", 

n sec. 32, T. 27 N., R. 12 E., 1 mile downstream from Arroyo Hondo and 1* miles upstream from mouth. 

Records available.- April 1910 to August 1915 (at site 200 yards above mouth, published 

as hio Hondo near Arroyo Hondo) and January 1932 to September 1948 in reports of 

Geological Survey. April 1910 to December 1928 in reports of State engineer. 

Average discharge.- 16 years (1932-48), 30.7 second-feet. 

Extremes.- Maximum discharge during year, 1,060 second-feet July 19 (gage height, 3.75 

feet), from rating curve extended above 200 second-feet by logarithmic plotting; minimum daily, 6.8 second-feet Sept. 22. 

1932-48: Maximum discharge, 2,510 second-feet Aug. 23, 1935 (gage height, 5.45 

feet, datum then in use), from rating curve extended above 170 second-feet by logarithmic plotting; minimum daily, 4.0 second-feet July 13-16, 1934. 

Remarks.- Records good. Diversions above station for irrigation. 

Discharge, in second-feet, water year October1947 to September1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 7.9 13 14 15 15 18 14 43 73 17 13 

.-:.W 

2 8.3 13 15 13 14 16 14 39 71 16 12 !

3 8.8 12 15 16 14 16 14 37 84 15 12 

WW

- ,

4 8.3 12 14 16 14 15 15 33 87 13 12 

10 ,

5 8.3 13 14 18 14 bll 15 31 80 14 23 

6 8.3 13 15 17 14 b12 16 36 79 12 21 

y,..

r ,

7 8.3 10 14 16 14 14 19 33 77 14 16 ,

8 8.3 10 14 16 13 16 23 31 77 12 16 ,

9 8.3 11 14 15 12 15 19 30 74 11 15 ,

10 7.9 12 b13 15 16 15 15 29 71 10 15 

99

11 7.9 12 b9.5 14 15 14 15 27 67 9.7 15 r

0

,

12 7.9 13 11 14 b10 13 13 22 66 9.7 15 

t-g

0

13 8.8 13 10 13 b12 16 11 18 59 9.7 15 0

14 11 13 13 12 b14 18 12 11 52 9.2 15 r

0

15 9.2 14 14 14 b16 18 14 8.3 46 8.8 15 

16 7.9 15 18 15 16 18 10 12 39 9.2 13 

0N

rrg

17 7.9 14 15 13 16 18 11 21 35 8.8 9.5 0

18 7.9 14 16 16 16 .17 12 28 31 11 9.0 

rr

0

19 7.9 14 17 .13 17 15 13 40 36 56 9.0 

. 

0

20 7.9 14 .16 12 17 15 13 61 47 34 9.2 0

21 7.9 14 19 15 16 14 21 76 40 28 9.0 

1.: 

O

22 7.4 15 15 16 18 12 25 69 41 25 9.2 .

U

WO

ag ,

23 7.9 15 15 15 21 14 23 70 38 20 9.2 24 8.3 •14 14 15 19 15 22 69 34 18 9.0 

r.: 

OM

25 8.3 15 18 14 19 15 19 77 31 16 9.2 

,: 

26 8.3 14 16 14 19 14 18 73 29 16 8.7 ,

WW

27 8.3 14 16 b12 19 14 18 69 25 15 8.5 

is 

28 7.4 14 16 bll 18 14 20 69 21 15 8.3 ,

W

29 7.1 14 17 12 •18 15 36 70 20 14 8.5 g

V.

30 7.1 14 17 b14 15 44 71 19 13 8.5 

g'

,

31 8.3 17 15 - 15 73 13 8.1 

Month Secondfoot-days Maximum Minimum Mean Runoff in 

acre-feet 

October 253.3 11 7.1 8.17 502 

November 398 15 10 13.3 789 

December 461.5 19 9.5 14.9 915 

Calendar year1947 7,370.4 135 5.0 20.2 14,620 - January 446 18 11 14.4 885 February 456 21 10 15.7 904 

March 467 18 11 15.1 926 

April 

May 534 

1,376.3 

44 

77 

10 

8.3 

17.8 

44.4 

1,060 

2,730 

June 1,549 87 19 51.6 3,070 

July 493.1 56 8.8 15.9 978 

August 375.9 23 8.1 12.1 746 

September 220.2 8.1 6.8 7.34 437 

Water year1947-48 7,030.3 87 6.8 19.2 13,940 

Peak discharge (base, 90 sec.-ft.).- June 2 (11 p.m.) 148 sec.-ft.; July 19 (8 p.m.) 1,060 sec.-ft. 

. Winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice. 
285 RIO GRANDE BASIN 

Rio Pueblo de Taos near Taos, N. Mex. 

Location - Water-stage recorder, lat. 6°26, , long. 105°30,, in sec. 36, T. 26 N., R. 13 

E., 2f miles east of Taos Pueblo, 4f miles northeast of Taos, and 5 miles upstream 

from Rio Lucero. 

Records available.- February 1940 to September 1948. 

Extremes.- Maximum discharge during year, 146 second-feet May 25 (gage height, 2.07 feet); 

minimum daily, 3.7 second-feet, Nov. 7. 

1940-48: Maximum discharge, 970 second-feet May 14, 1941 (gage height, 3.90 feet, 

from high-water mark in gage well), from rating curve- extended above 290 second-feet by 

logarithmic plotting; minimum daily, that of Nov. 7, 1947. 

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are poor. No diversion above station for irrigation. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 5.6 5.6 6.3 b5.4 a6.0 7.6 10 108 102 28 10 7.9 2 5.3 5.6 6.3 b5.0 a6.0 •7.2 12 95 106 27 9.9 7.9 3 5.3 6.0 6.9 b5.5 a6.0 6.9 15 92 104 25 9.5 7.6 4 5.0 5.6 6.6 6.0 .6.3 5.6 19 83 106 24 12 7.6 5 5.0 5.3 5.0 5.6 6.3 b4.5 21 80 106 24 33 7.2 

6 5.0 5.3 6.9 5.6 6.3 b5.0 25 86 100 23 25 6.9 7 4.8 3.7 6.3 6.0 6.3 b6.0 26 93 95 22 19 6.9 8 4.6 4.8 5.6 6.0 6.0 6.9 27 102 93 21 17 6.9 9 4.6 5.3 6.3 6.3 b5.0 6.9 29 97 86 19 16 6.9 10 4.6 5.3 6.0 6.3 b5.6 6.6 37 85 83 19 15 7.2 

11 4.6 4.8 b5.5 6.3 b5.0 6.9 44 77 78 18 15 6.9 12 4.6 5.0 b5.0 6.0 b4.2 b5.5 38 67 82 17 15 6.9 13 5.0 6.0 b4.5 b5.0 b5.0 6.3 29 62 76 16 15 6.9 14 7.6 5.3 b5.0 b5.5 b5.6 6.9 28 64 71 16 15 6.6 15 9.1 5.0 b5.4 b6.0 b6.0 6.9 37 78 65 15 12 6.6 

16 7.6 5.6 b5.8 5.6 6.6 7.2 53 95 60 15 11 6.6 17 6.6 5.6 6.0 b5.0 6.6 7.6 56 106 55 14 11 6.6 18 6.3 5.3 6.6 b5.0 6.9 7.6 67 116 50 15 12 6.3 19 6.0 5.0 6.9 b5.0 7.2 7.6 74 114 49 17 15 6.3 20 6.0 5.3 6.3 b5.2 6.9 8.2 76 125 59 17 11 6.3 

21 5.6 4.8 6.6 b5.5 6.9 7.9 78 132 49 15 11 6.0 22 5.6 .6.9 •6.0 5.3 6.9 5.6 76 141 55 15 12 6.3 23 5.6 7.6 5.3 5.0 7.2 9.1 76 136 47 14 11 6.3 24 5.6 7.2 5.3 5.0 7.2 11 70 118 40 13 9.9 6.0 25 5.6 6.6 5.6 5.3 7.2 12 62 134 36 14 9.9 6.3 

26 5.6 6.3 5.6 5.3 7.6 11 se 129 33 16 9.1 8.2 27 5.6 6.6 6.0 b5.0 7.6 11 63 120 32 12 8.6 7.9 28 5.6 6.3 6.0 b4.5 6.9 12 65 127 32 12 8.6 7.9 29 5.6 6.6 5.6 b5.0 7.2 14 83 122 32 11 8.2 7.2 30 5.6 6.3 6.0 b5.4 13 110 110 31 11 8.2 7.2 31 5.6 b5.8 b5.8 12 - 108 - 12 8.2 

Month Secondtoot-days Maximum Minimum Mean Runoff in 

acre-feet 

October 174.8 9.1 4.6 5.64 347 November 170.6 7.6 3.7 5.69 338 December 183.0 6.9 4.5 5.90 363 

Calendar year1947 ,_ 8,554.0 218 3.7 23.4 16,960 

January 169.4 6.3 4.5 5.46 336 February 

March 184.5 

252.5 7.6 14 4.2 

4.5 6.36 

8.15 366 

501 April 

May 

June 

July 

August 

September 

1,464 

3,202 

2,013 537 

403.1 

208.3 

110 

141 

106 

28 

33 

8.2 

10 

62 

31 

11 

8.2 

6.0 

48.8 

103 

67.1 

17.3 

13.0 

6.94 

2,900 

6,350 

3,990 

1,070 800 

413 

Water year 1947-48 8,962.2 141 3.7 24.5 17,770 

Peak discharge (base, 70 sec.-ft.)).- Apr. 22 (9 p.m.) 82 sec.-ft.; Apr. 30 (11 p.m.) 114 sec.-ft.; May 8 (12 m.) 104 sec.-ft.; May 25 (10 p.m.) 146 sec.-ft. •Winter discharge measurement made on this day. a No gage-height record; discharge computed on basis of weather records and records for stations on Rio Taos at Los Cordovas and Rio Hondo at Arroyo Hondo. b Stage-discharge relation affected by ice. 
	

286 RIO GRANDE BASIN 

Rio Taos at Los Cordovas, N. Mex. 

Location.- Water-stage recorder, lat. 36°23'20", long. 105°38'00", in Ni sec. 23, T. 25 

N., H. 12 E. (projected), in Martinez Grant, 50 feet downstream from Rio Ranchos de 

Taso and Arroyo Seco, half a mile northeast of Los Cordovas, and 3} miles west of Taos. 

Drainage area.- 359 square miles. 

Records available.- April 1910 to August 1915 and October 1930 to September 1948 In reports 

o! Geological Survey. April 1910 to December 1931 in reports of State engineer. 

Average discharge.- 37 years (1910-25, 1926-48), 64.4 second-feet. 

Extremes.- Maximum discharge during year, 542 second-feet May 25 (gage height, 3.63 feet); 

minimum daily, 6.5 second-feet July 14-16. 

1930-48: Maximum discharge, 1,830 second-feet May 14, 1941 (gage height, 5.81 feet), 

from rating curve extended above 1,300 second-feet by logarithmic plotting; minimum 

daily, 1.4 second-feet Aug. 5, 10, 1934. 

Re7,rks.- He,ords good except those for January and February, which are poor. Diversions 

above station for Irrigation. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June ' July Aug. Sept. 

1 - 8.8 13 21 21 b23 42 33 178 332 23 6.8 8.4 

2 8.8 13 27 b20 a24 37 34 151 322 21 6.8 7.5 

3 9.3 13 32 24 a25 36 37 133 320 18 7.2 8.0 

4 9.3 13 30 25 a25 32 40 116 315 16 8.0 8.0 

5 9.3 14 26 26 a25 32 44 103 278 15 16 7.5 

6 9.3 15 29 25 •25 b28 49 105 225 13 14 7.5 

7 9.8 14 29 26 24 32 52 100 202 11 12 8.0 8 10 16 27 28 25 36 54 118 184 9.8 11 8.0 9 11 16 26 28 b22 35 60 118 155 8.4 10 8.4 

10 10 16 21 28 b25 35 74 105 133 8.4 11 8.8 

11 9.3 16 21 29 b22 32 103 97 123 8.4 11 8.8 12 9.3 16 21 29 b18 30 108 82 123 8.0 12 8.8 

13 10 17 20 28 b20 34 81 71 113 7.2 12 8.8 

14 15 17 21 27 b24 44 72 57 94 6.5 11 8.8 

15 10 16 23 28 b28 .44 81 60 77 6.5 10 8.4 

16 13 17 25 29 34 42 103 82 59 6.5 10 8.8 

17 13 19 21 27 35 45 113 97 52 6.8 10 9.3 18 12 18 21 27 39 44 119 133 37 8.0 11 8.8 

19 12 19 22 26 41 42 142 180 42 9.3 11 8.8 

20 12 19 •21 26 45 39 146 341 90 8.4 12 9.3 

21 11 18 24 27 45 36 147 407 60 7.5 12 9.3 22 11 17 22 28 51 32 142 419 66 8.4 12 9.3 

23 10 19 23 28 •63 36 149 416 62 7.5 12 8.8 24 11 19 22 26 50 37 162 407 50 8.0 11 9.3 25 12 18 23 26 47 37 133 472 42 8.8 11 10 

26 12 19 24 25 47 32 114 437 38 10 10 11 27 12 19 24 b23. 57 32 110 437 34 8.4 9.8 11 28 13 20 24 b20 53 32 106 428 36 7.5 8.8 11 29 13 21 24 b22 50 35 128 395 31 7.2 8.8 11 30 13 21 26 b20 - 38 182 067 27 8.0 8.8 11 

31 13 25 b22 38 338 7.5 8.4 -

Month Secondfoot-days Maximum Minimum Mean Runoff in 

acre-feet 

October 345.2 15 8.8 11.1 685 November 508 21 13 16.9 1,010 

December 745 32 20 24.0 1,480 - Calendar year 1947 14,785.2 700 3.0 40.5 29,340 

January 

February 

March 

794 1,012 

1,126 

29 

63 

45 

20 

18 

28 

25.6 

34.9 

36.3 

1,570 

2,010 

2,230 

April 

May 

June 

2,918 

6,948 

3,722 

182 

472 

332 

33 

57 

27 

97.3 

224 

124 

5,790 

13,780 

7,380 

July 

August 

September 

308.0 

325.4 

270.4 

23 

16 

11 

6.5 

6.8 

7.5 

9.94 

10.5 

9.01 

611 

645 

536 

Water year 1947-48 19,022 472 6.5 52.0 37,730 

Peak dischlr4,e (base, 200 sec.-ft.).- May 1 (7 a.m.) 200 sec.-ft.; May 25 (12 m.) 542 se,.-ft. . Winter discharge measurement made on day. a No gage-height record; discharge computed on basis of weather records and records for Rio Pueblo de Taos, Rio Lucero, and Rio Hondo at Arroyo Hondo. b Stage-discharge relation affected by ice. 
297 RIO GRANDE BASIN 

Rio Lucero near Arroyo Seco, N. Mex. 

Location.- Water-stage recorder and wooden control, lat. 36°30', long. 105°32', in sec. 

10, T. 26 N., R. 13 E., in Antoine Leroux Grant, 200 feet upstream from diversion 

dam for Tenorio and Indian ditches, 2 miles southeast of Arroyo Seco, 4} miles north 

of Taos Pueblo, and 7f miles northeast of Taos. 

Records available.- April 1910 to December 1916 (published as Rio Lucero near Taos) and 

November 1933 to September 1948 in reports of Geological Survey. January 1911 to 

December 1915 in reports of State engineer. 

Average discharge.- 14 years (1934-48), 25.6 second-feet. 

Extremes.- Maximum discharge during year, 127 second-feet May 22 (gage height, 2.11 

Feet); minimum daily, 2.5 second-feet Feb. 12. 

1933-48: Maximum discharge, 300 second-feet May 13, 1941 (gage height, 3.12 feet); 

minimum daily, that of Feb. 12, 1948. 

Remarks.- Records good except those for periods of ice effect or doubtful or no gageheight record, which are poor. No diversion above station. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 7.9 6.5 d5.5 45.0 44.0 5.1 7.2 48 92 40 12 11 2 7.9 6.5 45.5 d4.5 d4.0 *5.1 8.3 42 95 38 12 11 3 7.9 6.9 d5.5 4.7 a4.0 5.1 9.9 40 111 36 11 11 4 7.9 6.9 45.5 5.1 a4.0 4.7 10 36 114 34 12 11 5 7.6 6.5 44.5 5.4 a4.0 b4.0 11 38 108 32 22 10 

6 7.6 6.1 d5.0 5.1 *84.0 b4.5 13 42 100 31 19 9.E 7 7.9 b5.0 85.5 5.1 d3.5 4.7 15 46 100 30 18 9.5 8 

9 

10 

7.9 b5.4 7.9 b5.8 7.9 5.8 

45.0 

45.5 

45.0 

5.1 

5.1 

4.7 

43.5 

43.0 

43.5 

5.1 

5.1 

5.1 

16 

18 

21 

48 

44 

38 

93 

95 

91 

29 

28 

26 

17 

17 

16 

9.) 

9.) 

9.5 

11 7.9 b5.4 d4.5 5.1 43.0 4.7 20 32 89 25 15 9.5 12 7.9 b5.6 44.5 4.7 42.5 b4.4 17 27 89 24 15 9.5 13 8.3 5.8 44.0 4.1 d3.0 84.8 15 26 86 23 15 9.5 14 9.1 5.1 d4.5 4.4 43.5 45.0 16 32 81 22 15 9.1 15 *8.7 b4.8 45.0 4.7 83.5 85.2 22 43 76 21 16 8.7 

16 8.3 b5.2 d5.4 4.7 43.5 45.4 29 52 70 20 16 8.7 17 7.9 b5.4 a5.8 4.4 84.0 45.6 33 62 66 20 16 8.3 18 7.6 b5.2 a6.0 4.4 44.0 45.8 38 76 62 20 16 7.9 19 7.6 b5.0 a6.0 4.1 44.0 46.0 42 78 63 23 16 7.6 20 7.6 b4.8 a6.0 4.1 d4.5 d6.0 43 84 74 15 15 7.6 

21 7.6 b4.5 a6.0 4.1 44.5 5.4 42 105 62 13 15 7.6 22 7.9 *5.8 045.5 4.1 d4.5 4.7 37 116 60 14 16 7.2 23 7.6 46.0 45.0 4.1 d5.0 5.4 33 110 57 14 15 7.2 24 7.6 46.0 d5.0 3.8 44.5 7.2 30 99 54 13 14 7.2 25 7.6 d5.8 45.5 3.8 d4.5 7.9 26 99 51 13 14 7.9 

26 7.6 45.5 d5.5 3.8 84.5 7.2 23 82 48 14 13 8.3 27 7.6 45.5 d5.5 3.5 45.0 7.2 25 72 48 13 12 8.3 28 7.2 d5.5 45.5 d3.0 4.4 7.9 28 69 45 13 12 7.9 29 7.2 d5.5 45.5 d3.5 4.7 9.1 40 74 44 12 12 7.6 30 6.9 45.5 d5.5 84.0 - 8.7 50 83 42 12 11 7.6 31 6.5 45.5 d4.0 - 7.9 - 90 12 11 

Month Secondfoot-day. Maximum Minimum Mean Runoff in 

acre-feet 

October 240.6 9.1 6.5 7.76 477 

November 169.3 6.9 4.5 5.64 336 

December . 164.2 6.0 4.0 5.30 326 

Calendar year 1947 6,912.7 124 4.0 - 18.9 13,710 

- - - - - -

January 

February 

March 

136.2 

114.6 

180.0 

5.4 

5.0 

9.1 

3.0 

2.5 

4.0 

4.39 

3.95 

5.81 

270 

227 

357 

April 

May 

June 

July 

August 

September 

738.4 1,933 

2,266 680 

456 

265.9 

50 

116 

114 

40 

22 

11 

7.2 

26 

42 

12 

11 

7.2 

24.6 

62.4 

75.5 

21.9 

14.7 

8.86 

1,460 

3,830 

4,490 

1,350 904 

527 

Water year 1947-48 7,344.2 116 2.5 20.1 14,550 

Peak dischargc base, 70sec.-ft.).- May 22 (8 p.m.)127 sec.-ft.; June (7 p.m.) 119 sec.-

June 19 (T7 p.m.) 700 sec.-ft.; July 19 (8 p.m.) 85 sec.-ft. •Winter discharge measurement made on this day. a No gage-height record; discharge computed on basis of weather records and records for Rio Pueblo de Taos near Taos, Rio Taos at Los Cordovas, and Rio Hondo at Arroyo Hondo. 

b Stage-discharge relation affected by ice. 

d Doubtful gage-height record; discharge computed as explained in footnote a. 
288 RIO GRANDE BASIN 

Principal diversions from Rio Lucero, N. Mex. 

Records of discharge are collected for five ditches that divert water from the Rio 

Lucero below gaging station on that stream near Arroyo Seco. Each of these ditches is 

equipped with a water-stage recorder for collecting gage-height records. Water diverted 

by these ditches is used for Irrigation in the valley of the Rio Lucero below the gaging 

station near Arroyo Seco. 

Tenorio ditch diverts from right bank in sec. 10, T. 26 N., R. 13 E. (projected), 200 

feet aownstream from gaging station on Rio Lucero near Arroyo Seco. Records available, 

June 1935 to September 1948 (irrigation seasons only). 

Indian ditch diverts from left bank in sec. 10, T. 26 N., R. 13 E. (projected), 200 feet 

aownstream from gaging station on Rio Lucero near Arroyo Seco. Records available, July 

1934 to September 1948 (irrigation seasons only). 

Seco ditch diverts from right bank in sec. 10, T. 26 N., R. 13 E. (projected), 600 feet 

downstream from gaging station on Rio Lucero near Arroyo Seco. Records available, July 

1934 to September 1948 (irrigation seasons only except water years 1938-40). 

Juan Manuel ditch diverts from right bank in sec. 16, T. 26 N., R. 13 E. (projected). 

Records available, June 1935 to September 1948 (Irrigation seasons only). 

Prado ditch diverts from right bank in sec. 21, T. 26 N., R. 13 E. (projected). Records 

available, May 1934 to September 1948 (irrigation seasons only except water years 

1938-40). 

Diversions, in acre-feet, water year October 1947 to September 1948 

Tenorio Indian Seco Juan Manuel Prado ditch ditch ditch ditch ditch Month 

October a30.0 a68 a39 a2.6 a28 November - - - - - December - - - January -- - - - February - - - March - - - -

April c36 cll c228 b38 b207 May 216 213 607 451 706 June 202 490 853 352 702 July 100 456 313 50 374 August 82 462 147 6.1 256 September 32 257 90 19 77 

a Oct. 1-15. 

b Apr. 13-30. 

c Apr. 14-30. 
RIO GRANDE BASIN 289 

Embudo Creek at Dixon, N. Mex. 

Location.- Water-stage recorder, lat. 36°12'35", long. 105°54'35", in NW1,SW1 sec. 20, T. 

23 N., R. 10 E., at bridge on U. S. Highway 64, 0.5 mile upstream from mouth, threequarters of a mile east of Embudo, and 11 miles northwest of Dixon. 

Drainage area.- 305 square miles. 

Records available.- October 1930 to September 1948 in reports of Geological Survey. 

October 1923 to December 1931 in reports of State engineer. 

Average discharge.- 25 years (1923-48), 92.6 second-feet. 

Extremes.- Maximum discharge during year, 730 second-feet May 25 (gage height, 5.18 feet); 

minimum daily, 6.4 second-feet July 18. 

1900-48: Maximum discharge, 2,180 second-feet Aug. 22, 1946 (gage height, 7.00 

feet); minimum daily, 1 second-foot July 23, 24, 1932. 

Remarks.- Records fair except those for periods of ice effect or no gage-height record, 

which are poor. Diversions above station for irrigation. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 9.7 20 35 b18 b30 54 48 460 528 74 9.2 11 2 9.2 19 39 b19 b29 35 57 436 512 67 9.2 11 3 9.7 20 43 b21 27 39 78 420 512 59 20 10 4 9.7 21 41 b23 .28 33 97 385 488 54 17 9.2 5 11 b22 30 b24 28 26 109 382 448 59 196 9.2 

6 10 b20 38 b25 .28 38 124 392 424 67 8100 8.3 7 9.7 19 38 b26 27 34 126 410 432 51 a75 7.9 8 9.2 24 31 27 25 33 124 424 440 43 a60 7.9 9 9.2 28 32 31 b24 30 133 402 a410 33 48 8.3 10 9.2 28 25 33 b25 28 157 371 8360 25 39 8.7 

11 9.7 26 b22 31 21 24 211 336 a380 19 33 7.9 12 10 28 b24 28 b16 26 217 288 a410 17 35 7.9 13 11 28 b23 23 b18 30 369 252 a370 14 38 8.3 14 67 28 b22 23 b20 33 157 246 a320 11 30 8.3 15 59 28 b25 b25 b21 33 187 264 a250 9.7 22 9.2 

16 43 30 30 b22 b23 31 246 332 a220 9.2 16 9.2 17 38 30 b28 b20 25 39 312 360 al90 6.7 10 8.7 18 .33 28 b28 b25 .27 48 368 416 174 6.4 11 7.5 19 31 26 b30 b22 36 42 432 480 171 17 30 7.5 20 30 27 •28 b24 45 48 436 630 246 16 20 7.5 

21 27 16 30 .b26 42 43 452 655 187 11 18 7.5 22 26 22 27 b30 42 33 424 630 217 12 16 7.1 23 25 42 b25 34 52 48 432 603 214 11 16 6.7 24 24 34 b24 33 45 62 420 590 176 14 17 7.1 25 24 36 26 28 43 70 350 621 149 14 16 7.9 

26 23 36 27 31 51 52 291 580 126 21 16 12 27 23 39 27 15 45 52 312 580 114 16 14 14 28 22 34 b26 b22 42 60 312 590 111 11 13 15 29 22 • 34 b25 b25 49 70 382 567 91 12 13 16 30 21 32 b25 •b28 - 70 464 528 83 10 12 16 31 21 - b24 b29 65 520 9.7 9.7 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 686.3 67 9.2 22.1 1,360 November 825 42 16 27.5 1,640 December 898 43 22 29.0 1,780 

Calendar year 1947 18,793.3 563 4.2 51.5 37,290 

January 791 34 15 25.5 1,570 February 934 52 16 32.2 1,850 March 1,329 70 24 42.9 2,640 April 7,627 464 48 254 15,130 May 14,150 655 246 456 28,070 June 8,753 528 83 292 17,360 July 799.7 74 6.4 25.8 1,590 August 979.1 196 9.2 31.6 1,940 September 282.8 16 6.7 9.43 561 

Water year 1947-48 38,054.9 655 6.4 104 75,490 

Peak discharge (base, 800 sec.-ft.).- No peak above base. 

4 Winter diiSharge measurement made on this day. a No gage-height record; discharge computed on basis of weather records and records for Red River near Questa and Rio Santa Cruz at Cundiyo. b Stage-discharge relation affected by ice. 
		

290 RIO GRANDE BASIN 

Rio Chama at Park View, N. Mex. 

Location.- Water-stage recorder, lat. 36°44'15", long. 106°34'40", in Tierra Amarilla 

Grant, at bridge on State Highway 51, just below present mouth (shifts position) of 

Rio Brazos and half a mile northwest of Park View, Rio Arriba County. 

Drainage area.- 405 square miles. 

Records available.- November 1912 to September 1916 and October 1930 to September 1948 

In reports or Geological Survey. November 1912 to September 1916 and April 1925 to 

December 1931 in reports of State engineer. Records include flow of Rio Brazos. 

Average discharge.- 25 years (1913-15, 1925-48), 374 second-feet. 

Extremes.- Maximum discharge during year, 4,300 second-feet May 6 (gage height, 6.40 

feet); minimum daily, 10 second-feet Sept. 15. 

1930-48: Maximum discharge, 8,530 second-feet Apr. 16, 1937; maximum gage height, 

8.12 feet May 26, 1941, site and datum then in use; minimum daily discharge, 3 secondfeet July 6, 7, 1934. 

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are poor. Diversions above station for irrigation. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 

2 

. 3 4 

5 

64 

62 

67 

56 

48 

59 

59 

62 

53 

48 

51 

53 

50 

51 

•44 

a35 

835 

a37 

a40 

a42 

b45 

a45 

a45 

a42 

a40 

64 

62 

58 

b50 

b55 

148 

178 

236 

263 

280 

2,500 

2,140 

2,200 

2,110 

2,500 

1,580 

1,530 

1,660 

1,420 

1,280 

196 

180 

170 

148 

134 

18 

17 

17 

21 

105 

18 

18 

21 

21 

17 

6 

7 

a 

9 

10 

44 

40 

42 

41 

40 

51 

31 

42 

50 

53 

56 

46 

46 

50 

43 

a45 

a46 

•b48 

a50 

a50 

a40 

b40 

540 

540 

b40 

b50 

b55 

•58 

53 

50 

355 

406 

440 

500 

574 

3,300 

3,220 

2,620 

1,940 

1,440 

1,190 

1,160 

1,050 990 

920 

117 

106 

91 

78 

66 

95 

57 

60 

53 

43 

14 

13 

14 

15 

14 

11 

12 

13 

14 

16 

43 

97 

97 

190 

222 

39 

46 

47 

38 

32 

b40 

b35 

b35 

b37 

b40 

a50 

a50 

a47 

a45 

a42 

b45 

.b40 

b37 

b40 

b43 

b48 

b50 

b50 

52 

47 

598 

586 

470 

470 

540 

1,200 

1,080 

1,200 

1,760 

2,100 

948 

948 

798 

686 

605 

60 

55 

51 

49 

45 

41 

43 

49 

41 

39 

14 

12 

12 

11 

10 

16 

17 

18 

19 

20 

213 

186 

148 

120 

103 

46 

50 

41 

47 

43 

b40 

b40 

b42 

•b42 

b42 

a42 

a40 

a40 

a38 

a37 

b45 

b50 

b55 

b60 

b60 

47 

47 

44 

48 

48 

682 

806 1,030 

1,300 

1,810 

2,120 

1,980 

2,010 

2,100 

2,250 

535 

462 

420 

454 

496 

43 

34 

30 

55 

41 

37 

29 

26 

30 

29 

12 

15 

15 

17 

16 

21 

22 

23 

24 

25 

90 

92 

86 

80 

69 

40 

55 

51 

48 

52 

b40 

b38 

b40 

a40 

a40 

838 

.1340 b42 

b40 

b40 

b55 

b60 

b60 

.b60 

b65 

44 

.50 

64 

92 

112 

2,230 

2,440 

1,860 

1,080 821 

2,100 

1,850 

1,640 

1,560 

1,700 

420 

535 

471 

375 

312 

39 

32 

35 

39 

63 

27 

30 

29 

26 

26 

14 

12 

12 

13 

14 

26 

27 

28 

29 

30 

31 

61 

61 

58 

58 

62 

59 

56 

64 

51 

55 

48 

a42 

a45 

a45 

a42 

a40 

838 

b40 b70 

b37 b70 b35 b70 b37 69 .b42 

b45-

97 790 117 852 163 1,100 200 1,940 182 2,500 148 

1,450 

1,380 

1,250 

1,200 

1,170 

1,400 

293 

286 

286 

263 

228 

66 

45 

35 

26 

23 

21 

27 

23 

23 

22 

21 

19 

34 

29 

25 

23 

22 

Month Secondfoot-days Maximum Minimum Mean Runoff in 

acre-feet 

October 

November 2,696 

1,457 222 64 40 

31 87.0 48.6 5,350 2,890 December 1,333 56 35 43.0 2,640 

Calendar year 1947 88,027 3,040 17 241 174,600 

January 1,295 50 35 41.8 2,570 February 

March 1,471 

2,305 70 200 37 44 50.7 

74.4 2,920 

4,570 April 

May 27,285 58,470 2,500 3,300 148 1,080 910 1,886 

54,120 

116,000 June 22,601 1,660 228 753 44,830 July 

August 

September 

2,173 

1,123 497 

196 

105 

34 

21 

17 

10 

70.1 

36.2 

16.6 

4,310 

2,230 986 

Water year 1947-48 122,706 3,300 10 335 243,400 

Peak discharge base, 2,700 aec.-ft. .- Apr. 22 (2 a.m.)2,720 sec.-ft.; May 5 (1 a.m. 2,930 sec.-ft.; May 6' (11 p.m.) 4,300 sec.-ft. •Winter discharge measurement made on this day. a No gage-height record; discharge computed on basis of discharge measurements, weather records, records for El Vado Reservoir, and records for nearby streams. b Stage-discharge relation affected by ice. 
RIO GRANDE BASIN 291 

Rio Chama below El Vado Dam, N. Mex. 

Location.- Water-stage recorder, lat. 36°341 50", long. 106°431 30", in *III sec. 15, T. 27 

N., H. 2 E. (projected), 1.5 miles downstream from El Vado Dam, 2.7 miles upstream 

from Rio Nutrias, and 13 miles southwest of Tierra Amarilla. 

Records available.- October 1935 to September 1948 in reports of Geological Survey. 

October 1913 to November 1916 at site 1.5 miles upstream (records of unregulated 

flow), published as Rio Chama near El Vado and near Tierra Amarilla in reports of 

Geological Survey. October 1913 to September 1916 and February 1920 to December 1924 

in reports of State engineer. 

Average discharge.- 12 years (1936-48), 432 second-feet, subsequent to completion of El 

V9d0 para. 

Extremes.- Maximum discharge during year, 2,140 second-feet May 26 (gage height, 4.60 

feet); minimum daily, 3.3 second-feet Jan. 13-16. 

1935-48: Maximum discharge, 6,010 second-feet May 17, 1941 (gage height, 6.89 

feet); maximum gage height, 9.63 feet May 30, 1937, site and datum then in use; minimum daily discharge, 0.9 second-foot Dec. 30, 1946. 

Remarks.- Records good except those for periods of ice effect, which are fair. Diversions 

above station for irrigation. Flow regulated by El Vado Reservoir (see p. 240). . 

[............... .- air8 :NE-EE§O 

.6:,...;.AA

A:. .66);., H

7

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. FHH 

173 824 568

F4Mi MH 

Mira 

1 15 435 4.8 4.4 6.5 6.5 13 2 15 456 4.8 4.4 6.5 6.5 14 163 547 556

3 15 1,390 5.2 4.4 6.0 6.5 14 153 385 624

4 156 1,390 5.2 4.4 5.6 7.0 15 140 390 1,060

5 612 1,400 4.8 4.0 5.6 7.0 15 134 385 1,090

6 562 1,400 4.4 4.0 5.6 7.0 16 128

122

380 950 568 1,390 4.4 4.0 375 452 7.0

7 5.6 16 370 405 365 294 355 72 

8 568 1,380 4.4 4.0 5.6 7.5 16 116 9 568 1,370 4.0 .4.0 6.0 7.5 18 107 10 158 1,360 4.0 4.4 5.6 8.1 19 102

11 13 1,360 3.6 4.4 5.6 8.1 19 100 350 61

12 13 1,350 3.6 b4.4 5.6 8.1 19 97 350 59 13 15 1,340 3.3 b4.4 5.6 213 19 92 345 85 345 28 345 28 

340 26 

14 16 1,330 3.3 b4.4 6.0 484 46 89 15 13 1,320 3.3 b4.4 6.0 425 128 295

16 13 1,320 3.3 b4.4 6.5 425 131 1,230 17 13 1,310 3.6 4.4 8.1 430 104 733 335 24 335 24 326 24 18 13 1,290 3.6 4.0 7.5 435 32 726 19 13 1,280 3.6 4.0 7.5 440 34 719 20 92 1,270 4.0 4.8 6.5 304 36 712 326 23

21 396 1,270 4.4 5.2 6.5 13 36 553 448 22 22 435 1,260 .4.4 5.6 6.5 10 39 452 1,120 22 23 435 1,240 4.4 6.5 7.0 11 40 446 818 23 24 435 1,230 4.4 5.2 7.0 12 40 440 634 23 25 440 1,220 4.8 6.0 6.5 12 290 440 628 26

26 440 1,200 4.8 .5.6 6.5 12 1,530 440 616 23 27 435 1,190 4.4 6.5 6.5 13 1,810 435 610 23 28 435 1,170 b4.8 5.6 6.5 13 1,320 435 598 22 29 435 1,160 b4.8 6.0 7.0 13 828 497 592 22 30 435 1,150 .5.2 - 7.5 13 610 852 580 22 31 435 - 4.8 6.5 - 797 838 574 -

Secondfoot-days Month 

October 8,207 November 37,231 December 14,549.4 

Calendar year 1947 111,695.7 

January 132.4 February 137.8 March 197.5 April 3,364.8 May 8,064 June 25,819 July 11,959 August 14,991 September 6,681 

Water year 1947-48 131,333.9 

•Winter discharge measurement made on this day. b Stage-discharge relation affected by ice. 

Maximum 

612 1,400 

1,140 

1,400 

---5.2 

6.5 

8.1 484 1,810 

1,530 

1,230 

1,120 

1,090 

1,810 

Minimum 

13 

435 4.4 

1.2 _ _ - - --

3.3 

4.0 

5.6 

6.5 

13 

266 

89 

326 

22 

3.3 

Mean 

265 1,241 469 

306 

4.27 

4.75 

6.37 112 

260 

861 

386 

484 

223 

359 

Runoff in 

acre-feet 

16,280 

73,850 

28,860 

221,600 

263 

273 

392 6,670 

15,990 

51,210 

23,720 

29,730 

13,250 

260,500 
RIO GRANDE BASIN 292 

Rio Chama near Abiquiu, N. Mex. 

Location.- Water-stage recorder, lat. 36°13.00", long. 106°15,00", at bridge on State Highway 9b in Juan Jose Lobato Grant, miles upstream from El Rito Creek, 5 miles downstream from Abiquiu, Rio Arriba County, and 13.5 miles downstream from Abiquiu dam site. 

Records available.- January 1942 to September 1948. 

Extremes.- Maximum discharge during year, 2,010 second-feet June 7 (gage height, 4.30 

feet); minimum daily, 10 second-feet Jan. 28. 

1942-48: Maximum discharge, 6,330 second-feet Apr. 23, 1942 (gage height, 5.80 

feet), from rating curve extended above 3,300 second-feet by logarithmic plotting; minimum daily, 1 second-foot June 11, 1947. 

Remarks.- Records fair except those for periods of doubtful or no gage-height record and 

those for periods of ice effect, which are poor. Diversions above and below station 

for irrigation. Flow regulated by El Vado Reservoir (see p.240) Records of suspended 

sediment loads for the water year 1948 are given in Water-Supply Paper 1133. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 819 434 1,190 b30 b30 84 d65 234 1,080 261 810 600 

2 a18 469 1,210 b25 b35 62 d55 230 1,380 158 810 592 

3 17 950 1,170 b25 b35 55 49 208 1,420 145 407 592 

4 21 1,420 1,140 b30 36 40 56 204 1,380 136 372 760 

.5 43 1,350 1,130 b35 32 34 78 197 1,400 128 462 1,070 

6 525 1,330 1,110 b35 .29 29 90 204 1,480 122 434 1,050 

7 546 1,350 1,100 36 34 31 102 230 1,540 117 366 734 

8 525 1,400 1,070 27 30 30 102 225 1,490 104 497 448 

9 504 1,460 1,060 29 28 31 114 204 1,460 97 372 390 

10 483 1,460 .1,010 .31 30 32 158 174 992 90 354 392 

11 202 1,380 1,020 28 32 31 238 152 852 88 354 134 

12 68 1,380 988 26 .1)26 35 256 122 841 82 360 86 

13 42 1,400 952 24 b25 36 216 100 852 74 354 65 

14 584 1,420 929 25 b25 d40 388 84 1,050 67 344 70 

15 368 1,390 608 28 b26 d50 632 92 1,060 85 338 47 

16 109 1,380 532 25 b28 d70 721 221 733 481 338 31 17 82 1,380 329 29 b30 d80 841 261 553 931 332 26 

18 68 1,360 b70 b25 32 d150 976 247 539 730 322 25 

19 58 1,350 b45 b25 .37 d130 863 168 420 730 327 25 20 53 1,330 b40 b25 46 d100 863 171 390 685 310 24 

21 59 1,320 b34 b25 256 d90 677 161 378 658 310 20 

22 372 1,290 b25 •b25 271 d70 441 136 402 462 643 17 

23 414 1,310 b25 22 305 d80 434 117 657 414 1,100 17 

24 408 1,250 b22 21 189 d90 360 102 721 414 667 17 

25 420 1,250 b22 18 a180 d100 316 114 584 427 658 17 

26 434 1,260 b25 19 a170 d85 305 694 511 441 640 42 27 434 1,250 b30 a15 d160 d90 327 1,590 511 408 632 115 28 427 1,220 b30 810 148 d100 266 1,460 427 402 632 55 29 420 1,220 b30 a15 112 d120 230 964 322 390 632 34 30 434 1,190 35 a20 d130 238 703 327 552 632 26 31 434 35 .825 d100 712 800 608 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 8,591 584 17 277 17,040 

November 37,953 1,460 434 1,265 75,280 

December 17,016 1,210 22 549 33,750 

Calendar year 1947 129,631 1,460 1 355 257,100 

January 778 36 10 25.1 1,540 February 2,417 305 25 83.3 4,790 March 2,205 150 29 71.1 4,370 April 10,457 976 49 349 20,740 May 10,481 1,590 84 338 20,790 June 25,752 1,540 322 858 51,080 July 10,659 931 65 344 21,140 August 15,417 1,100 310 497 30,580 September 7,521 1,070 17 251 14,920 

Water year 1947-48 149,247 1,590 10 408 296,000 

•Winter discharge measurement made on this day. a No gage-height record; discharge computed on basis of records for stations below El Vado Dam and near Chamita. b Stage-discharge relation affected by ice. 

d Doubtful gage-height record; discharge computed as explained In footnote a. 
RIO GRANDE BASIN 293 

Rio Chama near Chamita, N. Mex. 

Location.- Water-stage recorder, lat. 36°04.20", long. 106°06.40", in NEi sec. 8, T. 21 

N., R. 8 E., 200 feet downstream from Espanola-0,)o Caliente highway bridge, 2t miles 

upstream from mouth, and 2f miles northwest of Chamita. 

Records available.- October 1912 to June 1915 and October 1930 to September 1948 in 

reports or Geological Survey. October 1912 to December 1931 in reports of State 

engineer. 

Average discharge.- 34 years (1913-17, 1918-48), 667 second-feet. 

Extremes.- Maximum discharge during year, 2,500 second-feet Oct. 14 (gage height, 4.13 

feet); minimum daily, 4.7 second-feet Oct. 3. 

1930-48: Maximum discharge, 9,910 second-feet May 14, 1941; maximum gage height, 

8.11 feet May 16, 1941; no flow at times. 

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are poor. Diversions above station for irrigation. Flow regulated by El Vado 

Reservoir (see p.240). Records of suspended sediment loads for the water year 1948 

are given in Water-Supply Paper 1133. 

Discharge, in second-feet, water year October 1047 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 a7 418 1,200 73 b40 165 214 

'

..,.?,'M WA§ 

L

I

M

niUE MF37). c-,:iEM . 

O WNC O §E1E ffaii M:4,,c7.?MI'E' 

Min 

.... ,,H, 

Minimum 

150 855 500 2 a6 418 1,130 b55 b45 150 185 94 811 500 3 4.7 650 1,140 b55 b50 132 202 91 540 490 4 6.5 1,240 1,130 b60 b55 120 292 5 35 1,270 1,090 b70 .560 112 271 

6 490 1,330 1,070 b80 b75 97 328 7 472 1,320 1,050 b90 85 85 328 8 481 1,330 1,040 b90 88 82 336 9 481 1,320 1,050 91 85 73 436 10 490 1,340 994 .79 88 70 620 

11 246 1,340 958 91 108 73 855 12 97 1,340 910 73 .1150 82 789 

94 392 621 76 520 1,100 

58 481 1,070 54 360 905 45 463 445 37 360 376 29 306 530 

42 299 244 29 320 128 13 79 1,340 a880 70 b60 85 580 23 299 a73 14 835 1,360 a860 76 b70 85 550 18 285 a75 15 336 1,320 a600 68 b80 15 299 a50 

124 299 a35 910 306 26 660 271 19 

88 1,810 

16 all0 1,320 a500 76 b100 104 1,310 17 a90 1,340 320 76 b120 112 1,490 18 a80 1,330 128 b60 .170 160 1,760 19 a75 1,320 97 b55 155 175 1,740 20 a70 1,320 76 b55 214 136 1,740 

21 a70 1,280 79 b70 336 128 1,690 

723 278 14 712 285 12 

690 285 6.0 510 443 6.5 392 1,080 11 384 696 8.5 418 570 9.0 

418 580 13 384 560 49 368 560 58 376 540 32 443 530 26 

22 320 1,240 •68 •b95 384 116 a1,500 23 392 1,230 70 94 392 128 a1,400 24 409 1,250 65 91 463 150 a1,300 25 400 1,250 65 85 299 202 a1,250 

26 409 1,230 73 94 238 214 a1,250 27 409 1,200 79 88 226 185 a1,250 28 409 1,160 82 b50 208 196 a1,200 29 409 1,140 82 b40 180 226 a1,180 30 427 1,150 91 b40 257 1,160 31 409 88 .1,38- 271 855 530 

Second- Runoff in Month Maximum Mean foot-days acre-feet

October 

November 

December 

8,554.2 

36,096 

17,065 

835 1,360 

1,200 

4.7 418 

65 

276 1,203 550 

16,970 

71,600 

33,850 

Calendar year 1947 143,357.2 1,550 3 393 284,400 

January 

February 

March 

April 

May 

June 

July 

Auguet 

September 

2,228 

4,524 

4,259 

29,016 

22,483 

25,636 

9,222 

14,403 

7,432 

95 

463 

271 1,810 

1,950 

1,680 910 1,080 

1,100 

38 

40 

70 

185 

278 

165 

15 

271 6.0 

71.9 

156 

137 

967 

725 

855 

297 

465 

248 

4,420 

8,970 

8,450 

57,550 

44,590 

50,850 

18,290 

28,570 

14,740 

Water year 1947-48 180,918.2 1,950 4.7 494 358,800 

•Winter discharge measurement made on this day. a No gage-height record; discharge computed on basis of weather records and records for stations below RI Vado Dam and near Abiguiu. b Stage-discharge relation affected by ice. 
294 RIO GRANDE BASIN 

Willow Creek near Park View, N. Mex. 

Location.- Water-stage recorder, lat. 36°40,20", long. 106°42,10", in Tierra Amarilla 

Grant, 400 feet upstream from Willow Creek dam site, 0.3 mile downstream from Horse 

Lake Creek, and 7 miles southwest of Park View, Rio Arriba County. 

Records available.- May 1936 to September 1948. (No winter records prior to 1943.) 

Extremes.- Maximum discharge during year, 930 second-feet Apr. 5 (gage height, 5.00 

feet); no flow at times. 

1936-48: Maximum discharge, 4,500 second-feet Apr. 23, 1942 (gage height, 10.49 

feet), by slope-area method; no flow at times. 

Remarks.- Records fair except those for periods of no gage-height record, which are poor. 

Diversions above station for irrigation. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

0000000000. W 0000000000 ..NWM 

1 00000 000001-'0000000000000000000 

00000

0000000000000000000000.1-'00

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 

a0 18 104 a12 a0 14 203 a9 19 a0 14 416 8 70 a0 10 405 8 9 

a0 8 442 6 4 

a0 7 330 6 3 a0 6 238 5 5 a0 7 215 4 4 

a0 6 232 4 3 a0 5 215 4 2 55

00000 00000 00000 00000N r4 .-4.

,000000 

2

0 

2 0 

4 1 

4 0 

12 0 

5 0 

4 0 

4 0 2 0 2 0 

1 0 

1 0 

1 0 

0 0 0 0 

0 0 

0 0 

0 0 0 0 0 0 

0 0 

1 0 

80 5 226 4 2 a0 5 264 4 3 CO 5 92 4 3 

a0 7 109 3 3 a0 7 161 2 2 

a0 10 168 2 1 a0 13 142 2 1 

a0 ale 123 2 0 

a0 a21 86 2 0

a0 a24 66 2 1

22 alb 54 2 1 

35 a14 54 1 8 

46 34 42 1 11 23 75 40 1 4 

42 82 34 2 2 

1 0

2 0

1 0 

I 0 

1 0 

0 0 

0 1 

0 1 

0 -

67 73 33 2 1 87 125 25 4 1 

53 188 22 7 0

26 175 20 5 0 

-

- 156 516 3 0 101 - 30 -

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 177 November 1 December 2 

Calendar year 1947 2,222 

2-- ZI°Z23 .9.2" -...

0001 0:000,4-.0000 

5.7 351 .03 2.0 .1 4.0 

6.1 4,400 

c 0 

13.8 795 40.3 2,480 153 9,080 4.9 300 7.3 432 .3 16 1.6 101 .1 4.0 

_ ..... January 0 February 401 March 1,249 April 4,577 May 151 June 218 July a August 51 September 2 

Water year 1947-48 6,837 442 0 18.7 13,560 

Peak discharge (base, 800 sec.-ft.).- Apr. 5 (7:30 p.m.) 930 sec.-ft. 

a No gage-height record; discharge computed on basis of weather records and records for El Rito Creek near El Rito and Rio Ojo Caliente near La Madera. 
		

295 RIO GRANDE BASIN 

El Rito Creek near El Rito, N. Mex. 

Location.- Water-stage recorder, lat. 36°23'30", long. 106°14'20", in NWt sec. 19, T. 25 

N., H. 7 E., three-quarters of a mile upstream from boundary of Carson National 

Forest and 3 miles northwest of El Rito. 

Records available.- May 1931 to September 1948. (No winter records 1937-41.) 

Average discharge.- 13 years (1931-37, 1941-48), 18.8 second-feet. 

Extremes.- Maximum discharge during year, 233 second-feet May 6 (gage height, 3.06 feet); 

minimum daily, 0.3 second-foot Sept. 6, 7, 22. 

1931-48: Maximum discharge not determined; minimum daily recorded, 0.3 second-foot 

June 21-23, 1934, June 30, July 1, 11, 1946, Sept. 6, 7, 22, 1948. 

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are poor. One diversion above station for irrigation. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 1.1 1.7 2.3 0.7 a2 2.0 b5 137 25 3.8 1.0 0.6 

2 1.3 1.7 2.3 .9 a2.5 a2 a7 124 24 3.8 1.0 .6 

3 1.2 1.7 2.0 1.0 a2.5 a2 a9 116 22 4.0 1.1 .6 

4 1.1 1.6 2.0 1.2 a2 al all 117 18 3.3 2.9 .5 

5 1.0 1.3 1.2 al.5 a2 al 15 140 15 3.1 5.9 .4 

6 .9 1.4 .2.3 al.5 a2 al 19 144 14 3.3 2.7 .3 

7 .9 .6 1.8 al.5 a2.5 a2 .24 140 14 3.1 1.7 .3 

8 .9 1.3 1.7 al.5 a2 a2 28 109 14 2.5 2.0 .4 

9 .9 1.6 1.2 .1)1.6 a2 al 40 74 12 2.2 1.6 .6 

10 .9 1.3 1.4 al.5 a2.5 a2 63 57 11 2.0 1.2 .7 

11 .9 1.0 1.8 al.5 a3 a2 65 53 12 2.0 1.2 .8 

12 1.3 1.1 2.3 1.4 a2 h2.3 53 53 10 1,8 1.3 .6 13 1.6 1.8 2.7 1.0 h1.6 a2 41 73 9.2 1.7 1.6 .5 14 2.9 1.0 1.6 .8 a2 a2 50 96 8.0 1.6 1.2 .6 

15 3.5 1.3 1.7 .8 a2.5 a2 81 101 7.4 1.4 1.1 .4 

16 2.5 1.4 b2 1.0 a3 al 101 80 6.7 1.4 1.0 .6 17 2.2 1.7 bl 1.2 a2.5 a2 108 75 6.3 1.4 1.2 .8 18 2.0 1.2 bl 1.1 a2.5 a3 121 77 5.7 4.5 1.2 .7 

19 1.8 1.7 bl 1.0 2.3 a2 128 69 6.3 2.3 1.4 .6 20 1.8 1.6 .1,1 1.0 2.3 2.9 133 62 6.7 2.0 1.0 .6 

21 1.7 1.4 bl 1.1 2.3 2.9 132 50 5.4 1.7 .8 .4 

22 1.6 2.3 bl 1.2 2.3 2.7 142 41 8.4 1.7 3.1 .3 

23 1.6 2.3 b1 1.3 2.5 3.1 110 34 7.7 1.7 2.2 .6 24 1.6 2.0 b.5 1.6 2.3' 4.3 78 37 5.7 1.7 1.4 .4 

25 1.6 1.8 b.5 1.8 2.2 .4.3 69 57 5.1 4.0 1.4 .7 

26 1.4 2.2 b.5 a2 2.2 b3 94 51 4.5 3.3 1.1 2.3 27 1.4 2.0 1.0 a1.5 2.3 b4 94 48 4.3 1.8 .9 1.8 28 1.4 1.8 1.2 8.5 2.2 b6 100 46 4.3 1.6 .6 1.4 

29 1.4 2.2 1.0 .a1.8 2.0 6.7 132 34 4.0 1.4 .6 1.0 30 1.6 1.8 1.0 a2 - 6.7 145 28 3.8 1.2 .6 1.1 31 1.7 - 1.0 a2 6.3 - 24 - 1.0 .6 -

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 47.7 3.5 0.9 1.54 95 November 47.8 2.3 .6 1.59 95 December 44.0 2.7 .5 1.42 87 

Calendar year 1947 , 4,380.2 139 .4 12.0 8,680 

January 40.5 2 .5 1.31 80 February 66.0 3 1.6 2.28 131 

March 87.2 6.7 1 2.81 173 

April 2,198 145 5 73.3 4,360 May 2,347 144 24 75.7 4,660 

June 300.5 25 3.8 10.0 596 July 72.3 4.5 1.0 2.33 143 

August 46.6 5.9 .6 1.50 92 

September 21.2 2.3 .3 .71 42 

Water year 1947-48 5,318.8 145 .3 14.5 10,550 

Peak discharge (bas_t, 120 'sec.-ft.).- Apr. 19 (7 p.m.) 208 sec.-ft.; May 6 (8:30 p.m.) sec.-ft.; 

May 14 (8:30 p.m.) 1n- sec.-ft. •Winter discharge measurement made on this day. a No gage-height record; discharge computed on basis of available recorder trace, weather records, 

and 3 discharge measurements. b Stage-discharge relation affected by ice. 

h Computed from staff-gage reading. 

905771 0 - 50 - 20 
RIO GRANDE BASIN 296 

Rio Ojo Caliente at La Madera, N. Mex. 

Location.- Water-stage recorder, lat. 36'20'45", long. 106'02'50", in NEi sec. 1, T. 24 

N., H. 8 E., 2.5 miles south of La Madera, 3 miles downstream from confluence of Rio 

Vallecitos and Rio Tusas, and 4 miles north of Ojo Caliente. 

Records available.- April 1932 to September 1948. 

Average discharge.- 16 years, 81.8 second-feet. 

Extremes.- Maximum discharge during year, 1,320 second-feet Apr. 22 (gage height, 3.85 

feet); minimum daily 2.5 second-feet July 25. 

1932-48: Maximum discharge, 2,980 second-feet Apr. 23, 1942, from rating curve 

extended above 1,300 second-feet by logarithmic plotting; maximum gage height, 7.60 

feet, July 15, 1933, site and datum then in use; minimum daily discharge, 1 secondfoot at times. 

Remarks.- Records fair except those for June 20 to Sept. 30 and those for periods of ice 

effect or no gage-height record, which are poor. Diversions above station for irrigation. 

Discharge, in second-feet, water year October 1947 to September1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

10 15 17 12 a14 50 83 810 124 9.3 10 4.2 

2 10 15 23 13 a14 39 114 684 117 8.9 5.3 5.3 

3 10 15 23 15 a15 32 192 635 121 8.4 4.9 4.9 

4 

1 

9.3 15 17 15 815 b30 226 581 105 8.4 4.9 4.9 

5 9.3 14 15 15 16 a28 254 608 85 8.0 5.8 4.9 

6 8.9 15 19 15 17 b25 279 568 78 8.9 4.7 5.3 

7 8.9 13 19 15 18 b26 275 555 81 8.4 4.7 5.8 

8 8.4 13 16 15 19 27 301 463 92 6.2 4.2 5.3 

9 8.4 15 19 17 16 30 395 342 75 6.7 4.0 5.3 

10 8.4 15 12 18 19 30 522 266 60 7.1 3.8 5.3 

11 8.0 14 12 18 16 b29 595 271 58 5.8 4.0 4.5 

12 8.0 13 13 17 a17 .1,27 487 223 62 7.1 3.8 4.5 

13 10 15 14 15 01118 30 347 210 51 8.4 3.6 4.5 

14 191 15 15 14 a19 39 358 258 39 6.7 3.8 4.5 

15 a40 13 15 14 a20 45 451 280 25 2.9 4.0 4.7 

16 a30 13 15 15 a21 42 602 271 18 3.8 4.0 4.7 

17 a25 17 15 13 23 52 728 240 12 5.3 3.8 4.7 

18 a20 15 15 15 25 55 795 258 10 4.9 3.8 4.7 

19 a18 15 15 14 35 55 788 248 9.6 5.3 3.8 4.7 

20 a16 20 15 14 47 66 887 236 13 4.2 3.8 4.5 

21 a16 13 17 15 55 55 943 206 8.9 4.7 3.6 4.5 22 16 15 15 16 59 52 1,090 186 9.3 4.0 4.2 4.7 

23 17 22 15 16 53 74 903 156 20 3.4 4.9 4.0 

24 16 15 14 17 41 104 642 149 20 2.9 4.2 3.1 25 16 17 15 15 38 119 475 318 18 2.5 3.8 3.4 

26 15 17 15 15 45 85 445 318 15 3.4 3.6 3.6 

27 16 19 15 13 47 83 505 244 13 3.4 3.4 4.2 

28 16 21 15 bll •49 106 575 210 12 4.7 3.1 6.2 29 16 17 15 .15 52 140 832 163 11 6.7 3.6 6.7 

30 15 16 17 a14 159 879 127 10 5.8 3.8 6.2 

31 15 15 a14 - 125 - 108 4.9 3.6 -

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 631.6 191 8.0 20.4 1,250 November 467 22 13 15.6 926 December 492 23 12 15.9 976 

Calendar year 1947 20,203.9 480 2.3 55.4 40,080 

January 460 18 -11 - 14.8 912 February 843 59 14 29.1 1,670 March 1,859 159 25 60.0 3,690 April 15,968 1,090 83 532 31,670 May 10,192 810 108 329 20,220 

June 1,372.8 124 8.9 45.8 2,720 

July 181.1 9.3 2.5 5.84 359 August 132.5 10 3.1 4.27 263 September 143.8 6.7 3.1 4.79 285 

Water year 1947-48 32,742.8 1,090 2.5 89.5 64,940 

Peak diecharge (base, 600 sec.-ft.).- Oct 14 (8:30 a.m.) 806 sec.-ft.; Apr. 10 (11 p.m.) 871 sec.- ft.; Apr. 22 (II p.m.) -1,320 sec.-ft.; Apr. 30 (10 p.m.) 1,170 sec.-ft. •Winter discharge measurement made on this day. a No gage-height record; discharge computed on basis of weather records and records for Rio Chama at Park View and El Rito Creek near El Rito. b Stage-discharge relation affected by ice. 
		

RIO GRANDE BASIN 297 

Rio Santa Cruz at Cundiyo, N. Mex. 

Location.- Water-stage recorder, lat. 35°57'40", long. 105°54'10", in SE-INWil sec. 17, T. 

20 N., R. 10 E., 135 feet downstream from highway bridge at confluence of Rio Medio 

and Rio Frijoles and a quarter of a mile northwest of Cundiyo. 

Records available.- September 1931 to September 1948 in reports of Geological Survey. 

September 1915 to December 1931 (published as Rio Medio at Cundiyo and Rio Santa 

Cruz above Chimayo) in reports of State engineer. 

Average discharge.- 31 years (1916-29, 1930-48), 33.9 second-feet. 

Extremes.- Maximum discharge during year, 316 second-feet May 19 (gage height, 3.10 feet); 

minimum daily, 7.6 second-feet Sept. 24. 

1931-48: Maximum discharge, 2,610 second-feet Sept. 24, 1931 (gage height, 8.20 

feet, datum then in use), from rating curve extended above 170 second-feet by logarithmic plotting; minimum daily, 3 second-feet Feb. 3, 1932, Jan. 21, 1935. 

Remarks.- Records good June to September, others fair except those for periods of ice 

---ZTTZTt or no gage-height record, which are poor. Diversions above station for irrigation. 

Discharge, in second-feet, water year October1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 8.2 9.8 alO a8 all 20 34 112 122 41 14 10 2 8.5 10 all a9 all b18 37 108 119 39 13 9.6 3 8.5 10 all a9 all b16 47 110 117 37 11 10 4 8.2 9.8 alO alO alO b15 62 101 114 35 16 10 5 8.0 b9 alO alO alO b12 72 108 106 33 37 10 

6 7.7 b8 *1311 alO alO b13 72 108 104 31 25 10 7 8.0 b9 bll all alO b14 70 120 114 30 20 10 8 8.0 b10 b10 all a9 b15 72 125 104 30 21 10 9 8.0 b10 b10 all alO a14 82 122 92 28 18 10 10 8.2 bll b9 all alO all 92 105 81 27 18 9.2 

11 d.o bll a8 alO a9 a12 90 97 87 26 16 8.4 12 8.0 bll a8 alO a8 a14 72 88 89 24 18 9.6 13 10 all a8 a9 a9 al5 61 86 78 22 20 8.8 14 37 all a8 ob8.5 a9 al6 61 90 72 20 16 8.4 15 19 all a9 a9 a9 .1,14 72 101 63 20 14 8.0 

16 16 all al0 a8 ..b9 15 84 115 61 20 13 8.4 17 14 a10 al0 a8 10 16 103 136 56 20 13 9.2 18 13 al0 alO a8 11 16 108 157 51 23 13 8.8 19 12 a9 bll a8 12 17 115 172 51 29 27 8.8 20 12 a9 all a9 12 20 112 148 101 27 16 9.2 

21 11 a8 810 a9 b12 17 108 176 60 24 14 8.4 22 11 a9 alO al0 13 b15 110 200 72 22 14 8.0 23 11 a9 a9 all 16 18 103 250 72 20 14 8.0 24 11 a9 a9 all 15 27 90 218 58 20 13 7.6 25 11 a9 al0 al0 15 37 77 162 51 19 15 8.8 

26 10 alO alO al0 17 836 76 144 47 21 14 16 27 10 alO al0 a8 20 33 84 133 51 18 12 12 28 10 al0 alO a9 19 38 86 122 50 18 11 10 29 10 all a10 a9 19 45 108 117 43 18 11 9.2 30 10 al0 alO a9 41 120 112 42 16 11 9.6 31 10 a9 alO 36 109 - 16 10 

Month Secondfoot-days Maximum Minimum Mean Runoff in 

acre-feet 

October . 345.3 37 7.7 11.1 685 November 295.6 11 8 9.85 586 December 303 11 8 9.77 601 

- Calendar year 1947 5,937.0 125 5.8 16.3 11,780 

January 293.5 11 8 9.47 582 February 346 20 8 11.9 686 March 648 45 12 20.9 1,290 April 2,480 120 34 82.7 4,920 May 4,052 250 86 131 8,040 June 2,328 122 42 77.6 4,620 July 774 41 16 25.0 1,540 August 498 37 10 16.1 988 September 284.0 16 7.6 9.47 563 

Water year1947-48 12,647.4 250 7.6 34.6 25,100 

Peak discharge (base 200 sec.-ft.).- Oct. 14 (10 a.m.) 292 sec.-ft.; May 19 (7:30 p.m.) 316 sec.-

ft.; May 23 TIO a.m.) 774 sec.-ft. •Winter discharge measurement made on this day. 

a No gage-height record; discharge computed on basis of available recorder trace, weather records, 

and records for anbudo Creek at Dixon. 

b Stage-discharge relation affected by ice. 
		

.

298 RIO GRANDE BASIN 

Rio Santa Cruz at Riverside, N. Mex. 

Location.- Water-stage recorder, lat. 35°59'15", long. 106°04.05", In SW1. sec. 2, T. 20 N., H. 8 E., at bridge on U. S. Highway 285, at south edge of Riverside, half a mile 

upstream from mouth and three-quarters of a mile east of Espanola. 

Records available.- January 1942 to September 1948. 

Extremes.- Maximum discharge during year, 500 second-feet May 21; maximum gage height, 

2.30 feet Feb. 14 (ice jam); no flow at times. 

1942-48: Maximum discharge, 643 second-feet Apr. 24, 1942; maximum gage height, 

4.85 feet June 7, 1942; no flow at times. 

Remarks.- Records poor. Diversions above station for irrigation. Flow partly regulated 

by Santa Cruz Reservoir (capacity, 4,614 acre-feet, original survey). 

Discharge, in second-feet, water year October 1947 to September1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. mro o.0 00000 

000..0 00 m00 0.--,m m c

i'lm..., om 

000000000000000 00000

, 00N.0 0.5000

Iv r 000000 ....- .,...;. 7.7.4:t;gg .ttsg ttf° 

. 00001- 00000 1 001,..,

W :M0.— , ,N.,—.0 1—.4,000 

0 al a5 11 10 20 41 0 1 al a6 10 20 14 29 0 4 a2 a6 11 32 58 20 0 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 

4 a2 a6 11 27 77 18 1

3 a3 •b5 12 44 58 21 1

1 a4 b5 12 147 29 25 0

1 5 b5 14 102 63 20 1

1 2 b5 10 84 50 47 1

3b5 11 80 44 18 1 

4 : b5 10 66 52 4 2 

2 2 b4 7 80 70 2 1 

a2 8 b4 6 80 55 15 2 al .8 b6 9 106 50 9 4 a2 6 •b8 9 102 39 1 1 a2 3 b10 6 74 27 a0 0 

a2 6 b10 5 70 18 a0 0 a3 3 bll 4 63 16 al 1 a2 3 •12 5 88 134 80 3 a2 3 18 7 98 190 e0 15 1 3 20 4 98 332 a0 9 

al 4 18 4 88 288 a0 4

al 3 18 5 114 276 1 0 al 4 18 6 126 201 1 0 al 4 23 6 118 217 1 1 al 5 29 9 118 228 2 0

a2 b4 21 10 63 234 1 0 a2 a3 12 7 41 212 1 0 a2 a2 11 5 18 217 1 0 a2 a2 10 5 16 201 1 0 a2 a3 5 36 152 1 1 a2 a4 - 5 98 - 0 

Second- Runoff In Month Maximw.. Minimum Mean foot-days acre-feet 

(1I 

....... =—,N :d .. ... „. .16 

IIII I 

00007.8.......:0:000

October 3.4 208 1.0 61 1.9 115 

2.0 1,440 

3.6 222 

105 November 31 December 58 

Calendar year 1947 725 - January 112 February 316 March 241 April 2,209 May 3,720 

10.9 627 7.8 478 73.6 4,380 120 7,380 9.4 557 1.6 97 1.5 93 .2 14 

June 281 July 49 August 47 September 7 

Water year 1947-48 7,176 332 0 19.6 14,230 

•Winter discharge measurement made on this day. a No gage-height record; discharge computed on basis of available recorder trace, weather records, discharge measurements, and engineer's notes and field estimates. b Stage-discharge relation affected by ice. 
299 RIO GRANDE BASIN 

Nambe Creek near Nambe, N. Mex. 

Location.- Water-stage recorder and concrete control, lat. 35°52', long. 105°57', in sec. 

'14, T. 19 N., R. 9 E., in Nambe Pueblo Grant, 1,000 feet downstream from diversion dam 

for Nambe Canal, 2f miles southeast of Nambe, and 6f miles upstream from Rio Tesuque. 

Records available.- October 1932 to September 1948. 

Average discharge.- 16 years, 11.6 second-feet. 

Extremes.- Maximum discharge during year, 205 second-feet June 19 (gage height, 4.45 

feet); minimum daily, 1.5 second-feet, Sept. 21. 

1932-48: Maximum discharge recorded, 878 second-feet Aug. 23, 1935, (gage height, 

6.43 feet), from rating curve extended above 65 second-feet by logarithmic plotting; 

no flow several days in October 1934. 

Remarks.- Records good except those for periods of ice effect or doubtful gage-height 

record, which are poor. Nambe Canal diverts water for irrigation 1,000 feet above 

station. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 3.1 3.8 3.8 b2.5 b3 3.6 4.1 30 39 15 6.9 1.8 2 3.4 3.9 4.3 b3 b3 b2.5 5.0 30 41 15 5.4 1.8 3 3.4 3.9 4.1 b3 3.0 b2.5 6.2 28 41 15 5.4 2.3 4 3.1 3.9 3.6 b3 3.0 b2.5 7.1 28 39 15 6.1 2.6 5 3.0 3.8 3.1 b3 3.1 b2 8.3 30 36 14 17 3.3 

6 2.8 3.4 4.3 3.4 3.0 b2.5 9.0 32 34 13 9.0 3.1 7 2.8 1.8 3.0 3.3 2.7 b3 10 33 38 13 8.3 3.3 8 2.8 3.6 2.1 3.3 b2.5 b3 10 34 36 12 9.6 2.8 9 2.7 4.1 b2 3.3 b3 3.3 11 31 35 11 7.9 2.8 10 2.4 4.5 b2 3.3 2.7 3.3 13 30 33 10 7.1 2.0 

11 2.7 3.1 b2.5 3.1 b2.5 3.1 15 27 34 9.6 7.1 1.8 12 2.0 3.3 b2.5 3.0 b2 3.1 14 25 36 8.6 6.9 3.6 13 1.9 •3.6 b3 2.7 b2.5 3.4 13 25 31 7.1 6.6 2.3 14 12 3.0 3.1 b3 b2.5 .3.8 14 29 30 7.1 6.4 2.3 15 6.2 2.7 3.4 *b3 b3 3.6 16 32 27 6.9 6.2 1.8 

16 5.0 2.8 3.3 b2.5 3.0 3.6 18 36 25 6.6 5.9 1.6 17 4.5 3.8 3.3 b2.5 3.0 3.8 21 38 24 6.9 5.7 1.7 18 

19 4.1 

4.5 

3.3 

3.0 .3.1 

3.3 3.1 b2.5 

3.0 

•3.1 

4.1 

4.1 

24 

24 

41 

47 

23 

31 

9.6 

8.6 

8.3 

d8 

1.7 

1.7 20 4.5 2.8 3.1 b3 3.1 3.9 25 49 28 9.6 d7 1.6 

21 4.5 2.3 3.4 3.1 3.0 3.8 25 51 22 7.9 d7 1.5 22 4.3 b2 3.3 3.1 3.1 3.4 26 50 22 7.9 d6 1.7 23 4.7 b2.5 3.3 3.1 3.3 3.9 25 49 20 7.1 d5 1.6 24 4.5 b3 3.3 3.0 3.3 4.5 23 46 18 6.9 d5 1.7 25 4.1 3.4 3.3 2.8 3.6 5.7 20 41 19 9.3 d5 1.6 

26 4.3 3.4 3.4 2.7 3.8 5.2 18 38 18 7.1 d5 2.6 27 4.1 3.6 3.4 b2.5 3.4 5.2 20 34 18 6.2 d4 3.6 28 3.8 3.6 3.4 b2 3.4 5.7 21 33 19 6.6 d5 3.6 29 3.8 3.8 3.4 b2.5 3.4 6.4 27 34 18 6.6 d5 3.4 30 3.9 3.6 3.6 b2.5 5.9 29 35 16 6.2 4.5 3.8 31 3.8 3.3 2.8 - 5.7 - 34 - 5.7 3.0 

Month Secondfoot-days Maximum Minimum Mean Runoff in 

acre-feet 

October' 122.7 12 1.9 3.96 243 November 99.3 4.5 1.8 3.31 197 December 100 4.3 2 3.23 198 

Calendar year 1947 2,173.3 37 1.4 5.95 4,310 

January 

-

89.6 

-

3.4 2 2.89 178 February 87 3.8 2 3.00 173 March 120.1 6.4 2 3.87 238 April 501.7 29 • 4.1 16.7 995 May 

June 1,100 

851 

51 

41 25 16 

35.5 

28.4 

2,180 

1,690 July 291.1 15 5.7 9.39 577 August 205.3 17 3.0 6.62 407 September 71 3.8 1.5 2.37 141 

Water year 1947-48 3,638.8 51 1.5 9.94 7,220 

Peak discharge (base,_ 60 sec.-ft.).- Oct. 14 (9 a.m.) 127 sec.-ft.; May 19 (10:30 p.m.) 90 sec.- ft.; June 19 (8 p.m.) 705 sec.-ft. •Winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice. 

d Doubtful gage-height record; discharge computed on basis of weather records and records for Nambe Canal near Nambe, Rio Tesuque near Santa Fe, and Embudo Creek at Dixon. 
300 RIO GRANDE BASIN 

Principal diversions from Nambe Creek, N. Mex. 

Records of discharge are collected for 11 ditches that divert water from Nambe Creek 

between Nambe diversion dam, 2i miles upstream from Nambe, and confluence with Rio 

Tesuque. Each of these ditches is equipped with a water-stage recorder for collecting 

gage-height records and each one, except Las Joyas, with a Parshall flume. Water diverted 

by these ditches is used for irrigation in the valley of Nambe Creek, except that diverted by Jacona ditch, which is used for irrigation on the left bank of Rio Pojoaque 

below Rio Tesuque. 

Nambe Canal diverts from right bank in SE1 sec. 24, T. 19 N., R. 9 E., 1,000 feet upstream 

from gaging station on Nambe Creek near Nambe. Records available, May 1932 to September 1948 (except winter periods for water years 1942-46). 

Llano Frio ditch diverts from right bank in SW1 sec. 14, T. 19 N., R. 9 E. Records 

available, March 1936 to September 1948 (irrigation seasons only after 1941). 

Llano ditch diverts from right bank in SW1 sec. 14, T. 19 N., R. 9 E. Records available, 

March 1936 to September 1948 (irrigation seasons only after 1941). 

Mocha ditch diverts from right bank in SW1 sec. 14, T. 19 N., R. 9 E. Records available, 

May 1936 to September 1948 (irrigation seasons only after 1941). 

Comunidad ditch diverts from right bank in NE1 sec. 14, T. 19 N., R. 9 E. Recbrds available, March 1936 to September 1948 (irrigation seasons only after 1941). 

Ortiz ditch diverts from right bank in SE1 sec. 10, T. 19 N., R. 9 E. Small flow diverted between gage and head gate for irrigation of about 5 acres. Records available, 

February 1936 to September 1948 (irrigation seasons only after 1941). 

Canyon ditch diverts from right bank in NW1 sec. 10, T. 19 N., R. 9 E. Records available, 

March 19,56 to September 1948 (irrigation seasons only after 1941). 

Acequia Rincon diverts from left bank in SE1 sec. 9, T. 19 N., R. 9 E. Records available, 

March 193b to September 1948 (irrigation seasons only after 1941). 

Las Joyas ditch diverts from right bank in NW1 sec. 9, T. 19 N., R. 9 E. Records available, March 1936 to September 1948 (irrigation seasons only after 1941). 

Barranco Alto ditch diverts from left bank in NWil sec. 8, T. 19 N., R. 9 E. Records 

available, March 1936 to September 1948 (irrigation seasons only after 1941). 

Jacona ditch diverts from left bank in NE! sec. 7, T.19 N., R. 9 E. Gaging station is 

three-quarters of a mile downstream from head and 4f miles east of San Ildefonso. Records include seepage inflow and, at times, inflow from Rio Tesuque. Records available, 

January 1940 to September 1948 (irrigation seasons only after 1941). Records not 

equivalent to those for Jacona ditch near Nambe collected for period April 1936 to 

December 1939. 

Several other ditches divert from Nambe Creek, but no records for them were obtained. 

Diversions, in acre-feet, water year October 1947 to September 1948 

Nambe Llano Frio Llano Mocha Comunidad Ortiz Month Canal ditch ditch ditch ditch ditch 

October 43 a0 a14 a0 a9.9 a6.0 November 36 - December 10 - - - - - January 7.3 - - - - - February 7.5 - - - - March 20 c22 c6.3 c0 d4.0 dO April 50 176 68 .2 72 42 May 106 272 134 19 158 119 June 64 207 137 16 126 105 July 107 70 111 31 79 77 August 53 57 58 14 58 51 September 93 5.0 54 18 16 34 

Canyon Acequia Las Joyas Barranco Jacona Month Alto ditch Rincon ditch ditch ditch 

Dctober a4,8 a5.0 b17 b2.8 b8.3 November - - - December - - - - January - - - - February - - - March d9.3 dO 00 c0 e0 kpril 72 33 81 9.3 23 Nay 142 131 257 57 148 June 106 49 196 31 104 July 31 46 104 24 45 4ugust 64 34 90 14 24 September 12 11 64 27 36 

a Oct. 1-6. 

b Oct. 1-8. 

c Mar. 25-31. 

d Mar. 26-31. 

e Mar. 24-31. 
301 RIO GRANDE BASIN 

Rio Tesuque above diversions, near Santa Fe, N. Mex. 

Location.- Water-stage recorder and concrete control, lat. 35°44,, long. 105°54, , in SE1 

sec.-32, T. 18 N., R. 10 E., 1 mile upstream from Rito Tesque and 4 miles northeast of 

Santa Fe. 

Records available.- March 1936 to September 1948 in reports of Geological Survey. May to 

October 1919 at site 175 feet downstream in reports of State engineer. 

Average discharge.- 12 years (1936-48), 3.59 second-feet. 

Extremes.- Maximum discharge during year, 181 second-feet June 19 (gage height, 3.41 feet); 

minimum daily, 0.4 second-foot Sept. 22-24. 

1936-48: Maximum discharge, 425 second-feet July 19, 1938 (gage height, 4.2 feet, 

from floodmarks), from rating curve extended above 10 second-feet by logarithmic plotting 

on basis of slope-area determination at gage height 4.0 feet; minimum daily, 0.2 secondfoot Dec. 11, 1945. 

Remarks.- Records good except those for periods of ice effect or doubtful or no gage-height 

record, which are poor. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

d

klgUNNNVUU2 8,'551-161 Vi:= 8,0.-1. .,....

0.7 1.3 2.1 7.7 12 a4 0.9 0.8 .8 1.1 2.1 7.7 12 a4 1.0 .7 0.5 0.7 1.0 1.1 .8 al.0 00000 90990. .g.01,1 ,6o cs o 7,7,7,747, 4VH r HH HHH Hi H 

°?'99'cl°!°:99 00000 c(!°Irlc 

.7 .8 al.0 .8 1.2 2.6 7.4 12 a4 1.1 .7 .6 .7 al.0 .8 1.1 2.9 7.1 12 a4 1.6 .7 .7 .7 al.0 7.4 12 a3 2.7 .7

.7 .7 *1.0 .7 .5 .8 .7 1.0 1.0 .7 1.0 1.0 .7 1.0 .9 

.7 .8 b1.0 .7 .7 1.0 

.8 .9 3.6 

.7 1.3 3.8 7.4 12 a3 1.7 .7 .7 1.2 4.0 7.7 12 a3 1.6 .7 .8 1.2 4.5 8.0 10 a3 1.6 .7 .8 1.2 4.5 8.0 8.0 a3 1.1 .6 .7 1.2 5.5 7.7 a8.2 a2 1.0 .7 

.7 1.3 6.4 7.4 8.4 a2 1.0 .7 .7 '1,1.3 5.2 6.7 7.4 a2 1.1 .7 .7 1.3 4.9 6.4 6.8 1.7 1.1 .6 .7 1.3 5.2 6.4 6.8 1.9 1.0 .6 .7 1.3 6.1 7.1 6.4 1.9 .9 .6 

.8 1.3 6.8 7.7 6.1 1.7 .8 .7 .8 1.2 7.4 8.0 6.1 2.0 .9 .7 ..9 1.3 8.0 9.3 4.9 2.4 1.2 .5 1.1 1.4 7.7 14 15 2.7 2.0 .5 1.1 1.6 8.0 11 alO 2.6 1.3 .6 

1.0 1.2 8.0 12 a8 2.6 1.2 .5 1.1 1.3 7.7 11 a7 2.3 1.2 .4 1.1 1.7 7.4 12 a9 2.1 1.1 .4 1.1 2.3 6.8 13 a7 1.9 1.1 .4 1.3 2.4 6.1 12 a6 1.7 1.1 .6 

1.3 2.3 5.5 12 a5 1.7 .9 1.1 1.3 2.1 5.8 12 aS 1.2 .8 .7 1.3 2.6 5.5 12 aS 1.2 .8 .6 

.7 1.0 1.1 2.0 .9 b1.0 1.1 .9 1.0 

.9 .9 .9 .8 1.0 .8 .7 .9 d.8 .8 1.0 d.8 .8 .9 d.8 

.8 b1.2 4.8 .8 b1.2 4.8 .8 1.1 d.8 .8 1.1 d.8 .8 b1.0 d.8 

.8 b1.0 d.9 .8 1.1 d.9 .8 1.0 d.9 .8 1.0 d.9 1.4 2.9 6.4 11 a5 1.1 .9 .5 .7 1.0 d.9 2.6 7.1 11 a4 1.1 .9 .6 .8 - d.9 - 2.3 - 11 - 1.1 .8 -

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 25.0 2.0 0.5 0.81 50 Noveaber 27.6 1.2 .5 .92 55 December 28.3 1.1 .8 .91 56 

1.78 1,290 Calendar year 1947 651 11 .4 

January 29.1 1.1 .8 .94 58 

February 26.7 1.4 .7 .92 53 

March 48.7 2.9 .9 1.57 97 

April 167.6 8 2.1 5.59 332 

May 289.1 14 6.4 9.33 573 

June 249.1 15 4 8.30 494 

July 71.9 4 1.1 2.32 143 

August 36.4 2.7 .8 1.17 72 

September 19.1 1.0 .4 .64 38 

Water year 1947-48 1,018.6 15 .4 2.78 2,020 

Peak discharge (base, 40 sec.-ft.).- May 19 (4 p.m.) 116 sec.-ft.; June 19 (4:30 p.m.) 181 sec.- ft 

•Winter discharge measurement made on this day. a No gage-height record; discharge computed on basis of recorded range in stage, weather records, 

and records for Nambe Creek near flambe and Rio Santa Cruz at Cundiyo. 

b Stage-discharge relation affected by ice. 

d Doubtful gage-height record; discharge computed as explained in footnote a. 
		

-- 

302 RIO GRANDE BASIN 

Mitchell ditch near Santa Fe, N. Mex. 

Location.- Water-stage recorder and 1-foot rectangular weir, lat. 35°46,, long. 105°56,, near A cor. sec. 25, T. 18 N., R. 9 E., at pipe-line outlet 5f miles north of Santa 

Fe 

Records available.- June 1936 to September 1948 (not continuous). 

Remarks.- Records good. Discharge computed by formula for rectangular weir. Ditch 

supp led by underground flow from pipe line laid in bed of Rio Tesuque. Water diverted is used for irrigation. No diversion between station and head. 

A1 

Runoff in 

acre-feet 

October 1-8 0.3 0.2 0.21 3.4 

November - -

December - - - -

Month Maximum Minimum Mean 

Calendar year - - - -

January -- -

February -

March 24-31 .4 .3 .34 5.4 

April .5 0 .31 18 

May .8 0 .50 31 

June .7 .5 .59 35 

July .6 .3 .47 29 

August .5 .4 .44 27 

September .3 .2 .23 14 

Water year - -- -

Well ditch at San Ildefonso, N. Mex. 

Location.- Water-stage recorder and 1-foot Parshall flume, lat. 35°54', long. 106°06,, in 

NWt sec. 9, T. 19 N., R. 8 E., 50 feet downstream from head of open ditch and threequarters of a mile northeast of San Ildefonso. 

Records available.- June 1938 to September 1948 (irrigation season only after 1941). 

Remarks.- Records good except those for October and May 21 to June 17, which are fair. 

Ditch supplied by underground flow from pipe line in bed of Rio Pojoaque; water is 

used for irrigation. No diversions between station and head. 

"v.v.. ,.... .- ... ..„........ . .... ...-.. ... J 0 1 

Runoff et Month Maximum Minimum Mean acre-feet 

October 1-8 0.6 0.2 0.42 6.7 November - December - - - -

Calendar year - - -

January - - - -

February -

March 24-31 1.2 .6 .76 12 

April 2.4 .6 1.58 94 

May 2.3 1.0 1.86 114 

June 2.6 .1 2.18 130 

July 2.2 .8 1.56 96 

August 1.4 1.0 1.22 75 

September 1.0 .1 .89 53 

Water year - - -
		

RIO GRANDE BASIN 303 

Santa Fe Creek near Santa Fe, N. Mex. 

Locat on - Water-stage recorder and concrete control, lat. 35°41'15", long. 105'50'35", in 

„ sec. 23, T. 17 N., R. 10 E., about 0.4 mile downstream from McClure Dam (name 

changed), and 5 miles east of Santa Fe. Prior to Oct. 1, 1947, at site 0.3 mile upstream at different datum. 

Records available.- May to June 1910 (at site 3 miles downstream), April 1913 to December 

1914 (at site 2 miles downstream), and October 1930 to September 1948 in reports of Geo- logical Survey. January 1913 to November 1930 (at site 2 miles downstream) and November 

1930 to December 1931 in reports of State engineer. 

Average discharge.- 18 years (1930-48), 8.04 second-feet. 

Extremes.- Maximum daily discharge during year, 54 second-feet June 7; minimum daily, 0.3 

---7Z7310-foot Oct. 15-23. 1930-48: Maximum discharge, 418 second-feet Apr. 23, 1942 (gage height, 3.51 feet, 

site and datum then in use), from rating curve extended above 150 second-feet; minimum 

daily, 0.2 second-foot Dec. 3-14, 16-29, 1943. 

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are fair. Flow regulated by McClure Reservoir (see p. 240). No diversion above 

station. 

Rating table, water year 1947-48 (gage height, in feet, and discharge, in second-feet) 

1.4 0.3 1.8 5.2 2.4 35 1.5 .8 2.0 12 2.6 53 1.6 1.7 2.2 21 2.8 75 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. """""' :"1-"T!'?F”'TT?) ?):-..' :"":"': ;. Z.,;., ;-,:-.:. oomoo 00000 o,...,... ...NNN ...1.4.4M01 M,WW, 0. 0.41 .1 Z, ;)U.G.1 Wal ti O 1-.0-',... jjj 4 ,.0 ..N.W (0,00N 0) -.. NNV.4 (./4 

6.9 3.9 9.0 6.6 3.7 8.7 6.6 3.7 8.7 6.6 3.9 8.7 6.6 3.9 8.7 

6.3 3.9 8.7 5.8 3.9 8.7 5.2 3.7 8.4 

1 5.2 0.4 0.4 1.3 1.2 4.6 9.4 

2 4.8 .4 .4 1.2 1.2 4.6 9.0

3 3.5 .4 .4 1.3 1.2 4.6 9.0

4 2.5 .4 .4 1.3 1.2 4.6 9.4 

5 2.1 .4 .4 1.3 1.2 4.8 10

e 2.1 .4 .4 1.5 1.2 a4.8 10 

7 8.0 .4 .4 1.5 1.2 a4.7 11 B 14 .4 •.4 1.6 1.3 a4.6 11 g 13 .4 .4 2.0 1.3 a4.6 12 5.0 3.7 8.4

10 12 .4 .4 2.0 1.3 a4.5 12 5.0 3.7 8.4

11 .4 .4 *2.0 1.3 a4.5 13 4.4 3.9 8.4 4.2 3.9 8.4 4.2 3.9 8.4 3.9 3.9 8.4 3.9 3.9 8.4 

3.9 31 8.0 3.9 22 8.0 3.9 3.1 8.0 3.9 2.5 8.0 3.9 1.8 8.0 

11 

12 10 .4 .5 1.8 b1.3 a4.4 13

13 8.7 .4 .5 1.7 b1.3 a4.4 13 14 3.7 .4 .5 1.7 1.3 a4.3 9.4

15 .3 .4 .4 1.7 1.3 a4.2 7.2

16 .3 .4 .4 1.6 1.3 4.2 7.4

17 .3 .4 .4 1.5 1.4 4.2 7.7

18 .3 .4 .5 1.5 1.6 4.4 8.4

19 .3 .4 .5 1.4 2.1 4.6 8.7

20 .3 .4 .5 1.4 2.5 4.8 9.4

21 .3 .4 .7 1.4 2.7 5.2 9.8 3.7 1.8 8.0 .4 .8 1.3 2.8 5.2 9.8 .4 .9 1.3 .3.0 5.5 10 22 .3 3.7 1.8 8.0 23 .3 3.7 1.8 8.0 24 .4 .4 1.0 1.3 3.1 6.0 10 3.7 3.3 8.0 25 .4 .4 1.0 1.3 3.3 6.6 10 3.7 7.2 8.0 

26 .4 .4 1.1 1.3 3.9 7.2 10 3.7 9.0 8.0 .4 .4 1.1 1.2 4.2 7.7 10 3.7 9.0 8.0 3.7 9.0 8.0 27 

28 .4 .4 1.2 1.2 4.4 8.0 7.0

29 .4 .4 1.2 1.2 4.4 8.7 1.4 3.9 9.0 7.7

30 .4 .4 1.2 '1.2 - 9.0 4.2 3.9 9.0 7.7

31 .4 - b1.3 1.2 - 9.4 - 3.9 9.0 -

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October . 106.5 14 0.3 3.44 211 November 12.0 .4 .4 .40 24 December 20.1 1.3 .4 .65 40 

Calendar year 1947 1,478.2 42 .3 4.05 2,930 -

January 45.2 2.0 1.2 1.46 90 

February 59.5 4.4 1.2 2.05 118 March 168.9 9.4 4.2 5.45 335 April 282.2 13 1.4 9.41 560 May 177.8 8.0 3.0 5.74 353 June 270.0 54 1.7 9.00 536 July 142.0 6.9 3.7 4.58 282 August 187.8 31 1.8 6.06 372 September 247.8 9.0 7.7 8.26 492 

- -

Water year 1947-48 1,719.8 54 .3 4.70 3,410 

•Winter discharge measurement made on this day. a No gage-height record; discharge computed from recorded range in stage. 

b Stage-discharge relation affected by ice. 
2

RIO GRANDE BASIN 304 

Jemez River near Bernalillo, N. Mex. 

Location.- Water-stage recorders on right and left banks, lat. 35°23'40", long. 106°32' 

26', in S sec. 32, T. 14 N., R. 4 E., about 2 miles upstream from mouth and 6.2 miles 

north of Bernalillo. Datum of gage is 5,120.11 feet above mean sea level, datum of 1929. 

Records available.- March 1936 to January 1938, March 1943 to September 1948. 

Extremes.- Maximum discharge during year, 3,570 second-feet Sept. 26 (gage height, 3.18 

feet), from rating curve extended above 1,000 second-feet by logarithmic plotting; no 

flow at times. 1936-38, 1943-48: Maximum discharge, 15,300 second-feet Oct. 18, 1944, from rating 

curve extended above 3,000 second-feet by logarithmic plotting; maximum gage height, 

5.62 feet Aug. 29, 1943; no flow at times. 

Remarks.- Records poor. Diversions above station for irrigation. Records of suspended 

sediment loads for the water year 1948 are given in Water-Supply Paper 1133. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 0 4 a25 a6 23 a40 62 286 309 0 2 0 2 a22 a5 dll 30 70 218 237 0 3 0 2 816 a6 dll 30 82 258 132 0 4 0 11 87 d13 a28 106 309 62 0 5 0 4 4 a8 8 a24 150 300 58 22 

6 0 6 6 810 11 22 162 237 49 65 7 0 1 3 all 4 25 168 272 47 0 8 0 15 2 a12 18 174 244 32 0 9 0 10 4 813 8 15 225 152 30 0 10 0 8 a3 814 4 24 322 138 18 0 

11 0 6 a4 812 0 a30 440 176 14 0 12 0 7 5 810 80 38 400 148 24 0 13 0 10 a5 a8 0 29 500 108 20 0 14 155 13 a6 a7 0 11 600 90 18 0 15 27 al0 a6 6 8 20 798 87 3 0 

16 20 14 a7 85 33 29 830 100 0 0 0 17 19 16 .8 04 35 40 782 79 0 0 0 18 19 815 a9 a3 20 65 736 68 0 0 19 20 813 10 a2 90 87 666 60 0 0 0 20 9 all 810 a6 65 60 610 60 14 0 0 

21 6 a9 a9 812 100 62 430 45 0 0 22 4 a7 a9 818 134 a50 526 49 0 0 0 23 11 a6 a8 20 108 845 381 41 0 0 0 24 11 a8 d18 90 840 309 70 0 0 0 25 9 812 a9 d16 84 a35 430 108 0 0 0 

26 4 816 al0 d12 82 33 430 194 0 0 395 27 a22 all a6 a80 27 272 194 0 0 815 28 6 25 a12 a2 870 43 272 161 0 0 17 29 5 22 a12 83 860 50 237 138 0 0 15 30 2 24 12 4 67 279 111 0 0 17 31 a8 6 67 122 0 

Second- Runoff in foot-day. acre-feet Month Maximum Minimum Mean 

October 333 155 0 10.7 660 November 319 25 1 10.6 633 December 274 25 2 8.8 543 

Calendar year 1947 9,480 758 0 26.0 18,810 

January 272 20 2 8.8 540 February 1,156 134 0 39.9 2,290 March 1,184 87 11 38.2 2,350 April 11,449 830 62 382 22,710 May 4,623 309 41 149 9,170 June 1,067 309 0 35.6 2,120 July 0 0 0 0 0 August 87 65 0 2.8 173 September 459 395 15.3 910 

Water year 1947-48 21,223 830 0 58.0 42,100 

Peak discharge (base, 3,000 sec.-ft.).- Apr. 13 (8 a.m.) 2,350 sec.-ft.; Sept. 26 (2 a.m.) 3,570 sec.-ft. a No gage-height record; discharge computed on basics of weather records and records for nearby stations on Rio Grande. d Doubtful gage-height record; discharge computed as explained in footnote a. 
305 

RIO GRANDE BASIN 

Tijeras Creek near Albuquerque, N. Mex. 

Location - Water-stage recorder and concrete control, lat. 35°03'40", long. 106°29'40", 

in 5v4, sec. 26, T. 10 N., R. 4 E., at Mann diversion dam and 9 miles east of 

Albuquerque. 

Records available.- April 1943 to September 1948 in reports of Geological Survey. January 19'21 to January 1922 in reports of State engineer. 

Extremes.- Maximum discharge during year, 294 second-feet Aug. 12 (gage height, 3.45 

feet); minimum daily, 0.1 second-foot Sept. 17-24. 

1943-48: Maximum discharge, 6.410 second-tbet July 19, 1944 (gage height, 8.75 

feet), from rating curve extended above 1,100 second-feet; minimum daily, 0.1 secondfoot at times. 

Remarks.- Records fair. Several diversions above station for irrigation. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 0.2 0.3 0.3 0.4 0.4 0.5 0.6 0.4 0.4 0.4 0.4 0.3 2 .2 .3 .4 .4 .4 .4 .6 a.4 .4 .4 .4 .3 3 .2 .3 .4 .4 .4 .5 .6 a.4 .4 .4 .4 .3 4 .2 .3 .4 .4 .4 .4 .6 a.4 .4 .4 .4 .3 5 .2 .3 .4 .4 .3 .4 .6 a.4 .4 .4 .4 .3 

6 .3 .3 .4 .4 .3 .4 .5 .4 8.4 .4 .4 .3 7 .3 .3 .3 .4 .3 .4 .5 .4 a.4 .4 .4 .3 8 .2 .3 .3 .4 .3 .4 .5 .5 a.4 .4 8.4 .3 9 .3 .3 .4 .4 .2 .4 .4 .4 .4 .4 a.4 .3 10 .2 .3 .4 .4 .2 .5 .4 .5 .4 .4 a.4 .3 

11 .2 .3 .3 .4 .2 .5 .3 .5 .4 .3 a.4 .2 12 .2 .3 .3 .4 a.2 .5 .3 .5 .4 .3 20 .2 13 .3 .3 .3 .4 .3 .5 .3 .5 .4 .3 4.9 .2 14 8.7 .3 .3 .4 .3 .5 .3 .4 .4 .3 al .2 15 a.4 .3 .3 .5 .3 .6 .4 .4 .4 .3 a.4 .2 

16 a.3 .3 .3 .4 .4 .5 .4 .4 .4 .3 .3 .2 17 a.2 .3 .3 .4 .4 .5 .4 .4 .4 .3 .3 .1 18 .2 .3 .3 .4 .4 .6 .4 .4 .4 .3 .3 .1 19 .2 .3 .3 .4 .4 .5 .4 .4 .4 .3 .3 .1 20 .2 .3 .3 .4 .4 .5 .4 .4 .4 .3 .3 .1 

21 .2 .3 .3 .4 .4 .5 .4 .4 .4 .3 .3 .1 22 .2 .3 .3 .4 .4 .6 .4 .4 .4 .3 .5 .1 23 .2 .4 .3 .4 .4 ,6 .4 .4 .5 .3 1.6 a.1 24 .2 .4 .3 .4 .4 .6 .4 .4 .4 .3 a.6 a.1 25 .2 .3 .3 .4 .5 .6 .4 .4 .4 .3 a.4 a5 

26 .2 .3 .3 .4 .5 .5 .4 .4 .4 .3 a.3 a2 27 .2 .3 .4 a.4 .5 .5 .3 .4 .4 .3 .3 a.5 28 .2 .3 .4 a.4 .4 .5 .4 .5 .4 .3 .3 .2 29 .2 .3 .4 a.3 .4 .5 .3 .4 .4 .3 .3 .2 30 .2 .3 .4 8.3 .5 .4 .4 .4 .4 .3 .2 31 .2 .4 .3 - .6 .4 - .4 .3 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 15.4 8.7 0.2 0.50 November 9.2 .4 .3 .31 December 10.5 .4 .3 .34 

Calendar year 1947 203 66 .1 .56 - - - . January , 12.2 .5 .3 .39 February 10.4 .5 .2 .36 March 15.5 .6 .4 .50 April 12.7 .6 .3 .42 Kay 13.0 .5 .4 .42 June 12.1 .5 .4 .40 July 10.5 .4 .3 .34 August 37.4 20 .3 1.21 September 13.1 5 .1 .44 

Water year 1947-48 172 20 .1 .47 342 I I 

Peak discharge (bale, 150 sec.-ft.).- Aug. 12 (7:40 p.m.) 294 sec.-ft. a No gage-heig record; discharge computed on basis of available trace, recorded range in stage, 

weather records, and engineers' notes. 
306 RIO GRANDE BASIN 

Rio Puerco near Cabezon, N. Mex. 

Location.- Water-stage recorder and concrete control, lat. 35°42,10", long. 107°00,40", 

in Stt sec. 14, T. 17 N., R. 2 W., miles downstream from San Luis diversion dam, 2 

miles northeast of San Luis, 7 miles northeast of Cabezon, and 15 miles upstream from 

Chico Arroyo. 

Drainage area.- 360 square miles. 

Records available.- February 1943 to September 1948. 

Extremes.- Maximum discharge during year, 570 second-feet Feb. 20 (gage height, 3.21 

feet); no flow at times. 

1943-48: Maximum discharge, 4,400 second-feet June 28, 1943 (gage height, 10.6 

feet), by slope-area method; no flow at times. 

Remarks.- Records fair except those for periods of ice effect or doubtful or no gageheight record, which are poor. Diversions above station for irrigation. Records of 

suspended sediment loads for the water year 1948 are given in Water-Supply Paper 1133. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 0.2 0.1 3.6 b0.1 2 .2 .1 •2 b.l 3 .2 .1 dl b.1 4 .2 .1 dl b.1 

5.8 al0 4.9 a8 3.4 a6 4.2 a8 0.1 C; 0 .1 0 .1 .1 0 .1

2:.A4 AAA , 4.A.A AA

=. 0 000 0 1nM r+ f-

: 

74.... .. 

Cs .Nv v , ! 5 20.1. =0 74000000

0

00000 M0000 00000 WOM MN 

M n Oco r 

woow ,,W000 000,4 ., 00000 0000 0 0000 000 

.1 .1 .1 5 .2 .1 dl •b.l a2.5 a12 .1 20 .1 

6 .2 .2 d2 b.l 3.2 8.8 .1 5.9 .1 .1 a.l .1 .1 .1 .1 .1 .1 .1 .1 .1 .1 

.1 .2 .1 .1 .2 .1 .1 .1 .1 .1 .1 .1 .1 .1 .1 

.1 .1 .2 .1 .1 .2 

7 .2 .2 d2 b.l 8 .2 .2 d2 b.1 9 .2 .2 dl b.1 10 .2 .2 d.5 d.2 

11 .2 .2 b.1 d.5 12 .2 ..2 b.1 •b.5 13 .2 .2 b.1 b.1 14 105 .2 b.1 d.1 15 32 .2 •b.l d.2 

4.8 3.2 4.5 1.6 5.7 .8 3.6 .8 

a2 1.6 3.0 8.9 7.4 9.9 29 8.3 62 11

16 a4 .2 b.1 d.5 16 12 17 2.8 .2 b.1 b.5 22 10 18 1.5 .2 b.1 bl 69 48 .2 .1 .1 19 1.0 .3 b.I •ol 29 a40 .2 .1 .1 20 .4 D.3 b.1 .8 70 a40 .2 .1 .1 

.2 .1 .1 .1 .1 .1 .1 .1 .1 .2 .1 .1 7.9 .1 74 

1.1 .1 92 .1 .1 a5 0 .1 al 0 .1 a.1 

21 .3 a50 a60 a30 a80 a20 a70 37 a60 25 a50 

7.4 a50 

D.3 b.l .8 22 .1 .3 •b.1 1.2 23 .1 .2 D.1 bl 24 .1 .4 b.1 b2 25 .1 .3 b.1 bl 

26 .1 .3 b.1 b.5 27 .1 .4 b.1 b.1 5.1 46 28 .1 .3 b.1 D.1 29 .1 .8 •b.1 b.I 5.4 43 5.1 .45 30 .1 1.7 b.1 b.1 11 a45 0 .1 a.1 31 .1 - b.1 b.1 15 0 .1 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 150.6 105 0.1 4.86 299 November 8.7 1.7 .1 .29 17 December 18.2 3.6 .1 .59 36 

Calendar year 1947 2,085.3 215 0 5.71 4,140 -

January 13.3 2 .1 .43 26 February 504 162 .1 17.4 1,000 March 563 70 2 18.2 1,120 April 797.9 80 .8 26.6 1,580 May 869.5 80 5 28.0 1,720 June 159.1 91 .1 5.30 316 July 12.0 7.9 0 .39 24 August 28.7 20 0 .93 57 September 174.7 92 0 5.82 347 

Water year 1947-48 3,299.7 162 0 9.02 6,540 

Peak discharge (base, 600 sec.-ft.).- No peak above base. 

•Winter discharge measurement made on this day. a No gage-height record; discharge computed on basis of discharge measurements, weather records, recorder trace, and records for Rio Puerco at Cabezon and Chico Arroyo near Guadalupe. b Stage-discharge relation affected by ice. 

d Doubtful gage-height record; discharge computed as explained in footnote a. 
307 

RIO GRANDE BASIN 

Rio Puerco at Cabezon, N. Mex. 

Location - Water-stage recorder and concrete control, lat. 35°37.20", long. 107°07,00", 

in NW sec. 13, T. 16 N., R. 3 W., 0.7 mile southwest of Cabezon and 5 miles upstream 

from Chico Arroyo. 

Records available.- October 1945 to September 1948. 

Extremes.- Maximum discharge during year, 581 second-feet Sept. 25 (gage height, 2.27 

feet), from rating curve extended above 80 second-feet on basis of records for station 

near Cabezon; no flow at times. 

1945-48: Maximum discharge, 2,440 second-feet Aug. 2, 1946, from rating curve extended above 80 second-feet on basis of records for station near Cabezon; maximum gage 

height, 3.55 feet Aug. 9, 1946; no flow at times. 

Re.narks.- Records fair except those for periods of ice effect or doubtful or no gageneignt record, which are poor. Diversions above station for irrigation. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. ' 00000 :1 .000000 0000 00000 (.1 ', .;.= 4. 6, 

N ,g200000000 00000 0000000000

4.. CD OC4 

0 7.3 25 d52 

•0 6.0 12 d45 0 5.6 7.7 a56 0 4.3 9.3 a66 0 6.8 16 a74 

0 4.0 11 81 

0 6.0 9.3 89 0 7.3 9.3 93 0 8.7 10 104 

aC 8.7 10 39 

a0 8.7 13 31 a0 9.3 22 22 

a0 11 18 23 a0 16 14 27 a0 25 16 25 

9 9 9999 00000 0000

074%.7a,2, 000F11000NN.00000 0 00A 

1 0.1 0 1.7 

2 .5 0 4.9 3 .2 0 2.8 4 0 0 1.0 5 0 0 1.3 

6 0 0 .9 7 0 0 2.4 8 0 0 2.6 9 0 0 .7 10 0 .1 .7 

11 0 .1 a.4 12 0 .1 a.5 13 0 .1 a.2 14 240 .1 a.1 15 115 0 h0 

16 10 .1 a0 a0 23 22 a24 17 3.4 .2 a0 a0 25 27 a20 18 2.4 .1 CO a0 70 49 22 19 1.6 .2 CO 36

20 1.0 .1 CO 

21 .4 .2 CO 22 .3 .3 h0 

h18 39 58 a50 55 65 39

al50 20 93 36 a120 13 115 25

23 .2 .3 a0 a80 13 126 29 24 .2 .2 a0 a50 29 106 23 25 .1 .1 a0 27 a80 25

26 .1 .1 0 27 .1 .2 0 28 .1 .2 0 

aSo 

55 12 a78 58 42 9.3 55 55 29 7.7 72 42 29 .1 .3 0 12 9.3 76 31 30 16 31 0_ 

.1 .9 0 12 d65 0 - 22 - 10

Second- Runoff in Month Maximum Minimum Mean foot-day. acre-feet 1 . 0000100.4. ,20000 1 

1

1

a '"! 19 0 on iN 00..4. v)000, '° Z 1 2 542 

1 

1

12.1 746 

.13 7.9 

.65 40.0 

9.19 6,650 

.42 26 22.6 1,300 16.8 1,030 43.0 2,560 42.5 2,610 6.14 365 0 0 0 0 9.24 550 

October 375.9 November 4.0 December 20.2

calendar year 1947 3,356.1 . -

January 13.0 February 656 March 521 April 1,289.6 May 1,318 June 184.2 July o August 0 September 277.3 

Water year 1947-48 4,659.2 240 0 12.7 9,230 

Peak diacharKe (base, 800 sec.-ft..- No peak above base.

•Winter discharge measurement made on this day. a No gage-height record; discharge computed on basis of discharge measurements, available recorder trace, weather records, and records for station near Cabezon. b Stage-discharge relation affected by ice. 

d Doubtful gage-height record; discharge computed as explained in footnote a. 

h Computed from staff-gage readings. 
		

- 		- 

RIO GRANDE BASIN 308 

Rio Puerco at Rio Puerco, N. Mex. 

Location.- Water-stage recorder and concrete control, lat. 34°47,35", long. 106°59,15", 

in WI sec. 31, T. 7 N., R. 1 W. (projected), In hamlet of Rio Puerco in San Clemente 

Grant, at Atchison, Topeka & Santa Fe Railway bridge, 7 miles downstream from San 

Jose River. 

Drainage area.- 5,160 square miles. 

Records available.- September 1910 to October 1911, August 1912 to December 19:4 (records 

fragmentary, gage heights only prior to March 1913), and March 1934 to September 1948 

In reports of Geological Survey. January 1913 to December 1925 and September 1926 to 

December 1927 in reports of State engineer. 

Average discharge.- 23 years (1913-17, 1919-20, 1921-24, 1926-27, 1934-48), 91.9 secondfeet. 

Extremes.- Maximum discharge during year, 2,130 second-feet June 12 (gage height, 2.14 

feet); no flow at times. 1934-48: Maximum discharge, 28,000 second-feet Aug. 21, 1935 (gage heigt.t, 7.24 

feet), by computation of flow over dam; no flow at times. 

Remarks.- Records fair except those for periods of doubtful or no gage-height record and 

those below 10 second-feet, which are poor. Several diversions above station for 

irrigation. Records of suspended sediment loads for the water year 1948 are given in 

Water-Supply Paper 1133. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb.. Mar. Apr. May June July Aug. Sept. 

1 0 0.4 0.3 0.2 0 a60 022 22 12 0 0 2 0 .3 .4 0 0 42 a35 45 32 0 0 0 3 0 .4 1.8 0 0 26 a20 64 250 0 0 0 4 0 .3 .7 0 0 d18 a12 74 87 0 0 0 5 0 .2 .3 .6 .2 d12 8.0 70 a20 0 13 0 

6 0 .3 .3 .6 3.5 d10 4.9 58 a8 0 516 0 7 0 .1 .2 .8 3.9 d8 1.4 030 a3 0 176 0 8 0 .1 .2 1.8 16 d7 8.8 d40 a20 0 193 0 9 0 .1 .2 1.8 11 d6 10 d40 77 0 91 0 10 0 .3 .1 1.2 8.0 4.9 d5 36 a30 00 17

11 0 .2 .1 .5 3.5 2.3 d2 36 53 0 12 0 12 0 .1 0 .4 3.5 .9 .8 34 461 0 10 0 13 0 .3 0 .3 3.1 .3 .7 a20 288 0 7.3 0 14 102 .3 0 .1 2.8 .3 .4 a9 a100 0 28 0 15 309 .2 00 2.0 .2 .3 a4 a20 0 13 0 

16 112 .2 00 .6 13 .2 a2 a5 0 8.0 0 17 a15 .4 .10 1.2 36 .2 a0 .3 0 3.5 0 18 a8 .4 .1 0 11 16 .1 80 0 0 1.6 0 19 a4 .4 0 0 14 42 .1 a0 0 0 .2 0 20 1.8 .4 0 .1 8.0 .48 .1 80 60 34 .1 0 

21 1.0 .3 .1 .2 50 36 13 0 a2 a4 0 0 22 .2 .2 .1 .7 91 22 16 0 .3 a60 0 23 .3 .3 .2 1.8 78 16 34 .4 .1 a2 8,4 0 24 .4 .2 0 1.4 45 12 54 .2 0 al E.6 0 25 .4 .1 0 .3 45 a8 87 27 0 a.1 1.4 0 

26 .4 .1 .2 .2 91 a5 70 39 0 .1 .2 736 27 .4 .3 .1 0 135 a2 45 70 0 17 0 343 28 .4 .3 .2 0 141 al 24 58 0 5.40 58 29 .4 .3 .3 0 129 a2 17 16 0 1.6 0 18 30 .4 .3 .6 0 a4 16 a8 0 .1 0 31 .4_ .6 0 - al0 a5 0 0 13 

Month Second- Runoff in Maximum Minimum Mean foot-days acre-feet 

October 556.5 309 0 18.0 1,100 November 7.8 .4 .1 .26 15 December 7.2 1.8 0 .23 14 _ Calendar year 1947 27,329.1 4,440 0 74.9 54,200 

January 13.0 1.8 0 .42 26 February 897.3 141 0 30.9 1,780 March 470.9 60 .2 15.2 934 April 508.0 87 .1 16.9 1,010 May 807.6 74 0 26.1 1,600 June 1,528.7 461 0 ' 51.0 3,030 July 71.3 34 0 2.30 141 August 1,106.3 516 0 35.7 2,190 September 1,168 736 0 38.9 2,320 

Water year 1947-48 7,142.6 736 0 19.5 14,160 

Peak discharge (base, 6000 sec.-ft.).- No peak above base. 

a No gage-height record discharge computed on basis of weather records and records for station near Bernardo and other nearby stations. 

d Doubtful gage-height record; discharge computed as explained in footnote a.

h Computed from staff-gage reading. 
309 

RIO GRANDE BASIN 

Rio Puerco near Bernardo, N. Mex. 

Location.- Water-stage recorder, lat. 34°24'30", long. 106'51'10", in NEB sec. 8, T. 2 N., 

R 1 h.., at bridge on U. S. Highway 85, 1.2 miles southwest of Bernardo, 3 miles upstream 

from mouth, and 16 miles south of Belen. 

Records available.- November 1939 to September 1948. September 1910 to August 1914 

(fragmentary gage heights only) at site if miles downstream, published as Rio Puerco 

near La Joya. 

Extremes.- Maximum discharge during year, 1,570 second-feet Sept. 26 (gage height, 6.95 

feet); no flow for extended periods. 1939-48: Maximum discharge, 18,800 second-feet Sept. 23, 1941, from rating curve 

extended above 7,800 second-feet by logarithmic plotting; maximum gage height, 10.00 

feet July 22, 1944; no flow for extended periods. 

Remarks.- Records fair. Many diversions above station for irrigation. Records of sus-

-'76-ridEd sediment loads for the water year 1948 are given in Water-Supply Paper 1133. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. .Apr. May June July Aug. Sept. 

w 550.00000 N ANNM0, 1= 0

IT. F„),P,000000.00000000 0000G C0000

1 7

81 

00000 000000000

T=1Mn 0 1 0000 000000 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 522 246 0 16.8 1,040 November 0 0 0 0 0 December 0 0 0 0 0 

Calendar year 1947 31,279 4,630 0 85.7 62,050 . - _ _ — _ _ — — — — — — — — — January 0 0 0 0 0 February 344 78 0 11.9 682 March 313 61 0 10.1 621 April 433 124 0 14.4 859 Ray 477 65 0 15.4 946 June 1,330 357 0 44.3 2,640 July 14 6 0 .5 28 August 963 476 0 31.1 1,910 September 1,009 503 0 33.6 2,000 

Mater year 1947-48 5,405 503 0 14.8 10,730 

000000000000000 00000ougHts,) 

1 6 0 0000 00000000000 00000 01.0 ,00 000Wolei 

2 0 8 10 0 3 15 25 115 0 4 11 40 186 0 5 6 33 39 0

.6 3 27 16 23 7 3 20 6 476 17 2 173 9 0 28 21 171 10 7 35 79 50 

11 6 27 21 12 12 6 15 222 10 13 4 7 357 16 14 1 4 168 

4 7 00 0 

15 0 1 35 17

16 0 0 11 17 0 0 3 3 18 0 0 1 1 19 1 0 0 0 20 0 0 0 0 

21 0 25 22 0 05 0 23 124 0 1 24 39 0 0 0 25 68 0 0 0 

26 72 36 0 0 27 33 32 0 0 28 0 0 

16 65 0 29 10 25 0 0 30 6 19 0 31 - 7 0

Peak discharge (base, 3200 sec.-ft.).- No peak above base.

a No gage-heigHt record; discharge computed on basis of available recorder trace, weather records, 

and records for station at Rio Puerco. 
310 RIO GRANDE BASIN 

Chico Arroyo near Guadalupe, N. Mex. 

Location.- Water-stage recorder and concrete control, lat. 35°35'30", long. 107°11'05", 

in WI sec. 29, T. 16 N., R. 3 W., a quarter of a mile upstream from mouth, 5 miles 

northwest of Guadalupe, and 8.1 miles by road west of Cabezon. 

Drainage area.- 1,390 square miles. 

Records available.- November 1943 to September 1948. 

Extremes.- Maximum discharge during year, 2,630 second-feet Aug. 5 (gage height, 6.10 

feet); no flow at times. 

1943-48: Maximum discharge, 12,700 second-feet July 21, 1944, from rating curve 

extended above 2,500 second-feet by logarithmic plotting; maximum gage height, 12.8 

feet Aug. 16, 1947; no flow at times. 

Remarks.- Records fair except those for periods of ice effect or doubtful or no gageheight record, which are poor. No diversion above station. Records of suspended 

sediment loads for the water year 1948 are given in Water-Supply Paper 1133. 

Discharge, in second-feet, water year October 1947 to September 194; 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1,0•V CO ..-1 111 v110 

4, 00 .-1 ,-1 0 000 00 ,1 C00 01100 00000 

0 0 0 00000 CC CO C303•111 CO 1 03 CC 7° 

0 0 a° 0 0 a0 0 0 a0 0 a0 0 300 a0 • 

0 13 00 

1 2.1 0 0.1 0 0.2 38 16 0

2 2.3 0 .2 b.1 *.3 28 14 0

40

3 .1 0 .1 b.l .3 28 6.0 0

0 0 .1 b.l .3 21 12 0 5 0 0 .1 *b.1 .5 17 12 0

6 0 0 .1 .1 .4 22 11 0

7 0 .1 .1 .1 .3 20 8.8 0 0 67 00

8 0 0 *.1 .1 .3 15 8.1 0 0 28 a0 9 0 0 .1 0 ..5 17 4.0 0 0 4.8 00 17 2.6 0 0 1.4 a0 

0 .6 00 0 42 a0 0 8.8 a0 0 6.0 a0 0 6.7 a0 

10 0 0 .1 .1 .3

11 0 0 b.1 0 8.3 74 1.6 0

12 0 0 .1 ..9 b.2 40 1.1 0 13 11 0 dO .3 b.2 35 .9 0 14 448 0 dO .1 b.3 26 .7 0

15 018 0 .0 .1 .3 97 .5 0

16 54 o 3.1 .1 .3 14 .4 0 0 17 1.1 .1 d.1 .1 .3 20 .2 0 a2 10 0 a1 0.1 18 .3 .1 .1 .1 .4 26 .1 0 0 00 a0 19 .2 .1 .1 0 *3.2 21 .1 0 17 80 a0 20 .1 .1 .2 .1 66 26 0 0 51 80 aki

21 0 .1 .1 .1 2.3 13 0 0 a4 a0 0 22 0 .1 *1,0 .1 1.6 6.7 .5 0 al al 0 23 0 .1 .1 .1 2.0 2.2 .3 0 a.3 3.2 0 a.3 00 0 13 00 .1 

24 00 14 

24 0 .1 .1 .b0 2.6 0 .8 0 25 0 .1 .1 .1 5.6 0 8.4 .1

26 0 .1 0 0 73 0 a0 all 27 0 .1 0 0 78 0 0 2.9 a3 00 .3 28 0 .1 0 .1 88 0 0 7.4 0 a0 0 29 0 .1 •0 .1 37 23 0 0.5 30 0 .1 0 0- 35 0 a.1 31 3 - .1 .1 - 22 a.1 

0 00 0 0 a0 0 0 aC, 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 

November 487.2 1.5 448 .1 ,., 

0 15.7 .U5 

9; 

3.0 December 2.4 .2 0 .08 4.8 

Calendar year 1947 13,687.4 - 2,630 0 37.5 27,150 

January 

February 

March 

April 

3.3 365.0 

653.9 

102.1 

.9 88 

97 

16 

0 

.2 

0 

0 

.11 12.6 

21.1 

3.40 

6.5 724 1,300 203 May 

June 28.1 

87.1 17 49 0 0 .91 2.90 56 

173 July 

August 

September 

113.6 

485.5 

14.5 

51 

300 

14 

0 

0 

0 

3.66 

15.7 .48 

725 

963 

29 

Water year 1947-48 2,344.2 448 0 6.40 4,650 

Peak discharge (base, 2,300 sec.-ft.).- Aug. 5 (6:10 p.m.) 2,630 sec.-ft. 

•Winter discharge measurement or determination of no flow made on this day. a No gage-height record; discharge computed on basis of available recorder trace, field estimates, weather records, and records for Rio Puerco at Cabezon and at Rio Puerto. b Stage-discharge relation affected by ice. 

d Doubtful gage-height record: discharge computed as explained In footnote a. 
311 RIO GRANDE BASIN 

Bluewater Creek near Bluewater, N. Mex. 

Location.- Water-stage recorder, lat. 35°17'50", long. 108°01'40", in WSW sec. 5, T. 

1Z N., R. 11 W., 2i miles northwest of Bluewater and 8 miles downstream from storage 

reservoir of Bluewater-Toltec Irrigation District. 

Drainage area.- 235 square miles. 

Records available.- May 1912 to December 1914 and October 1930 to September 1948 in reports or Geological Survey. May 1912 to June 1919 and April 1921 to December 1931 in 

reports of State engineer. 

Average discharge.- 18 years (1930-48), 14.1 second-feet (unadjusted). 

Extremes.- Maximum daily discharge during year, 50 second-feet May 3-5; minimum daily, 

0.5 second-foot Mar. 5. 

1930-48: Maximum discharge, 1,010 second-feet Sept. 1, 1936 (gage height, 6.15 

feet, site and datum then in use), from rating curve extended above 65 second-feet by 

logarithmic plotting; no flow Mar. 9, 1931, Feb. 3, 1935, and at times in 1946. 

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are poor. Flow regulated by Bluewater-Toltec Reservoir (capacity, 46,000 acrefeet). 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

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 

r r r !--%!"%- -'-."%. ".-. "'n-''. ... .. . 0.'0000 

000ww 00000 

m..MtocomMOD-4 ,,,,I, 

-rn- rn- rrrrr rrrn

-rrrrr rrrrr

WIA NN...

.NW CAN

OG.00000000 0000

000000

1.3 b1.5 81.0 1.4 1.8 41 24 46 24 41 1.4 b1.0 .1.0 1.1 1.8 49 8.8 45 74 35 1.2 b1.5 81.0 1.2 1.8 50 4.9 4.6 24 30 1.1 b1.5 81.0 .6 2.0 50 7.4 3.1 24 30 1.1 b2.0 al.0 .5 2.2 50 13 2.8 24 30 

1.2 b1.5 81.0 .7 2.6 46 21 26 22 28 2.0 b1.0 .1.0 .9 2.8 44 21 39 15 29 1.2 •b.8 81.0 .7 3.1 43 27 39 4.2 29 .b.9 2.2 al.0 1.1 3.2 42 29 39 3.5 25 b.8 1.6 a1.0 1.1 3.4 42 30 40 3.4 22 

b.7 1.4 a.8 .9 3.7 39 30 40 3.5 22 b.8 1.0 a.7 .7 4.0 38 30 36 4.0 22 b.7 .8 a.8 1.0 4.0 38 29 35 3.7 21 .8 .8 a.9 1.1 4.0 32 29 35 3.7 21 1.1 .9 .1.0 1.2 4.2 32 29 35 3.7 21 

1.5 1.0 al.2 1.0 4.6 31 33 35 6.6 22 1.1 1.0 81.2 1.3 4.6 32 33 36 7.9 19 1.2 1.3 .1.5 1.3 4.7 35 32 54 7.9 9.6 1.5 1.2 81.5 1.1 4.7 35 32 24 17 3.4 1.6 1.6 81.5 1.0 4.7 35 31 17 21 2.4 

1.8 1.8 81.5 1.1 5.1 31 31 13 21 2.2 1.6 2.0 .1.5 1.0 5.1 25 39 11 22 2.0 1.6 1.6 .1.0 1.1 5.1 25 38 8.4 35 2.0 2.0 1.4 81.0 1.1 5.3 23 39 8.7 42 1.8 1.8 1.0 81.0 1.1 5.1 24 43 4.7 42 1.8 

b1.8 •.9 81.2 1.0 18 23 42 3.9 42 1.8 b1.8 .9 .1.2 1.2 26 21 42 5.7 42 2.0 b1.8 b.6 1.4 1.2 27 17 41 7.4 42 2.2 b1.8 a.8 1.4 1.4 34 17 41 7.7 42 2.1 b2.0 8.9 - 1.8 42 17 44 11 41 6.1 b2.0 a.9 - 2.0 - 19 15 41 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 29.7 1.8 0.7 0.96 59 November 32.2 1.3 .9 1.07 64 December 43.2 2.0 .7 1.39 86 

Calendar year 1947 346.5 9.8 .3 .95 687 

January 

February 

March 

38.4 

32.3 

33.9 

2.2 

1.5 

2.0 

.6 

.7 

.5 

1.24 

1.11 

1.09 

76 

64 

67 April 

May 

June 

July 

August 

September 

240.6 1,046 894.1 

708 

659.1 

486.4 

42 

50 

44 

46 

42 

41 

1.8 

17 

4.9 

2.8 

3.4 

1.8 

8.02 

33.7 

29.8 

22.8 

21.3 

16.2 

477 2,070 

1,770 

1,400 

1,310 965 

Water year 1947-48 4,243.9 50 .5 11.6 8,410 

•Winter discharge measurement made on this day. a No gage-height record; discharge computed on basis of recorded range in stage and weather records. 

b Stage-discharge relation affected by ice. 

905771 0-50-21 
312 RIO GRANDE BASIN 

San Jose River near Grants, N. Mex. 

LocatIon,- Water-stage recorder and concrete control, lat. 35°04', long. 107°44', in 

SWEt sec. 23, T. 10 N., R. 9 W., at west boundary of Acoma Indian Reservation and 

fq miles southeast of Grants. 

Records available.- June 1936 to September 1948. 

Average discharge.- 12 years, 7.37 second-feet. 

Extremes.- Maximum discharge during year, 147 second-feet June 2 (gage height, 2.08 

feet); minimum daily, 4.4 second-feet Sept. 11-14, 18, 22. 

1936-48: Maximum discharge, 1,330 second-feet Aug. 21, 1947 (gage height, 4.15 

feet, from floodmarks), from rating curve extended above 500 second-feet by loga- rithmic plotting; minimum daily, 2.5 second-feet May 7-10, 1943. 

Remarks.- Records good except those for period of no gage-height record, which are 

fair. Diversions above station for irrigation. 

Revisions (water years).- W 898: 1936-39(M). 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. P?TFF FFTFT n'TFT °T:"T!' T°TFT 0000 00000 ooum m ..UON

5.4 6.3 5.1 4.9 4.9 5.4 76 5.1 4.9 4.9 5.4 51 5.1 4.9 4.9 5.4 14 5.1 4.9 4.6 5.1 6.9 5.1 4.9 4.6 

5.1 5.4 5.1 4.9 4.6 5.1 5.1 5.1 4.9 4.6 5.1 5.1 5.1 4.9 4.6 5.4 5.1 5.1 4.6 4.9 5.4 4.9 5.1 4.6 4.6 

5.4 5.7 5.4 4.9 4.4 5.4 9.5 5.7 5.1 4.4 5.4 5.4 5.7 4.9 4.4 5.4 5.1 5.7 5.7 4.4 5.4 4.9 5.4 5.1 4.6 

5.4 4.9 5.1 4.9 4.6 5.4 4.9 5.1 4.9 4.6 5.7 4.9 5.1 4.9 4.4 6.0 4.9 5.4 4.9 4.6 5.7 5.1 5.4 4.6 4.6 

5.7 5.4 5.4 4.6 4.6 6.0 5.4 4.9 4.6 4.4 6.0 5.4 4.6 4.6 4.6 5.7 5.4 4.6 5.1 5.4 5.7 5.1 4.6 5.4 5.4 

5.7 5.1 4.6 5.7 5.7 5.7 5.1 4.6 5.4 5.4 5.7 4.9 4.6 4.9 5.4 5.7 5.1 4.9 4.9 5.7 5.7 5.1 4.9 4.9 5.7 

1 5.1 5.4 2 5.1 5.4 3 5.1 5.4 4 5.4 5.7 5 5.1 6.0 

6 5.1 6.0 7 5.4 5.7 8 5.4 5.7 9 5.4 5.4 10 5.7 5.4 

11 5.7 5.4 12 5.7 5.7 13 5.7 5.7 14 5.7 5.7 15 5.4 5.7 

16 5.7 5.7 17 5.4 5.7 

00000 000,,rnn

r

rn

rn

r

rrr

rrV .V,,, 

ci; t0 u, u; cD ,A; li,N Lf/ V; N ti.f;t11; 

5.4 85.5 6.0 5.4 a5.5 5.7 5.4 a5.5 6.6 5.4 a5.5 6.6 5.4 a5.5 6.9 

5.4 a6 7.2 5.7 a6 7.5 5.7 a7 7.5 5.7 a7 8.1 5.7 a7 8.8 

5.4 a6 8.8 5.4 a5.5 8.1 5.4 a5 8.1 5.1 a5 8.1 5.4 85.5 8.1 

5.4 a6 8.1 5.4 6.0 7.8 18 5.4 5.7 5.4 5.7 7.5 19 5.4 5.7 5.4 5.7 7.8 20 5.4 5.7 

21 5.4 5.7 22 5.4 5.7 23 5.4 5.7 24 5.4 5.4 25 5.4 5.4 

26 5.4 5.4 27 5.4 5.4 28 5.4 5.4 29 5.4 5.7 30 5.4 6.0 31 5.4 -

5.4 5.7 7.8 

5.4 5.7 7.5 5.7 5.7 7.5 6.0 5.7 7.5 6.0 5.7 7.2 5.7 6.3 7.5 

5.7 7.5 7.5 5.7 7.5 6.9 85.5 6.6 6.6 a5.5 6.3 6.0 a5.5 - 7.2 a5.5 9.2 5.7 4.9 4.9 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 167.7 5.7 5.1 5.41 333 November 168.6 6.0 5.4 5.62 334 December 177.6 6.0 5.4 5.73 352 

Calendar year 1947 2,375.1 200 4.2 6.51 4,710 - _.._ _ ------ - January 171.1 6.0 5.1 5.52 339 February 173.6 7.5 5 5.99 344 March 231.7 9.2 5.7 7.47 460 April 181.8 7.2 5.4 6.06 361 May 171.3 6.0 5.1 5.53 340 June 287.1 76 4.9 9.57 569 July 157.6 5.7 4.6 5.08 313 August 153.3 5.7 4.6 4.95 304 September 144.5 5.7 4.4 4.82 287 

Water year 1947-48 2,185.9 76 4.4 5.97 4,340 

Peak discharge tbase, 100 sec.-ft.).- June 2 (11 p.m.) 147 sec.-ft. 

a No gage-heigh record; discharge computed on basis of recorded range in stage, weather records, and records for station at Correo. 
.

2 313 

RIO GRANDE BASIN 

San Jose River at Correo, N. Mex. 

Location.- Water-stage recorder and concrete control, let. 34°58,00", long. 107°10,10", in NE? sec. 32, T. 9 N. R. 3 W., 0.6 mile upstream from U. S. Highway 66, 0.7 mile 

northeast of Correo, and 13 miles upstream from mouth. 

Records available.- April 1943 to September 1948. 

Extremes.- Maximum discharge during year, 2,360 second-feet June 11 (gage height, 5.20 

feet), from rating curve extended above 1,700 second-feet by logarithmic plotting; 

no flow at times. 1943-46: Maximum discharge, 8,010 second-feet May 26, 1944 (gage height, 9.20 

feet), from rating curve extended above 1,700 second-feet by logarithmic plotting; 

no flow at times. 

Remarks.- Records fair except those for periods of ice effect or doubtful or no gageheight record, which.are poor. Several diversions above station for irrigation. Rec- ords of suspended sediment loads for the water year 1948 are given in Water-Supply 

Paper 1133. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 000000 '1'400 0. 00000 00000 00000 00000 * 

o,c5c7t % ',t ' V. 0000 000. EOgg , 

co m.., 0. 

12 

8.4 

6.4 

4.4 

5.5 

4.1 

5.0 

5.5 

3.4 

3.4 

2.4 

1.6 

3.3 

3.3 

3.4 

1.5 

2.4 

3.1 

3.3 

2.7 

1.6 

.9 

1.6 

.6 

1.0 

.9 

.9 

.7 

1.1 

2.0 

2.4 

00000000 00000 .00000 

00000 ,

00000. 0000 00000 00000 00000 00000 

" 

.00000 0000

44800!.. NN W t= 0 c 

st. O ICD. 

000000000

00000000000tli cO v

0000000 

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 

0 

0 

0 

8.1 

25 

319 

42 

15 

4.4 

0 

0 

6.7 

5.8 

4.7 

7.6 

0000000000 00000 000000000

2. c5..s.. 2.

Runoff in 

acre-feet 

0 

0 

0 

3.1 

.8 

0 

0 

C 

C 

0 

34 

13 

4.6 

.3 

0 

0 

0 

0 

0 

Second- Month Maximum Minimum Mean foot-days 

1

I I o.

2ro co rn 000 

6 oil,

000000.0o:0 000 

m 

;'5 000 1 

t 

October i 0 November 0 December 0 

C4len8ar year 1947 5,356.1 

Januaryllp 2 Februar 236.7 March 98.8 April 8.2 May .7 

10,630 

June 1,009.3 2,000 

1,750 

July 18.7 August 494.1 September 881 

Water year 1947-48 2,749.5 501 0 7.51 5,450 

Peak discha e base 800 sic.-ft.).- June 11 (8 p.m.) 2,360 sec.-ft.; June 19 (10 p.m.) 885 sec.- ft.; Aug. 6 -0-2: a.m.Y 1,100 sec.-ft.; Sept. 26 (12:15 a.m.) 1,630 sec.-ft. •Winter discharge measurement made on this day. a No gage-height record; discharge computed on basis of weather records and records for Rio Puerco at Rio Puerco. b Stage-discharge relation affected by ice.

d Doubtful gage-height record; discharge computed as explained in footnote a. 

4.0 469 

196 

16 

1.4 

37 

980 
314 RIO GRANDE BASIN 

Rio Salado near San Acacia, N. Mex. 

Location.- Water-stage recorder, lat. 34°16'40", long. 106°52'55", in Ef, sec. 30, T. 1 N., 

H. 1 h., 1 mile upstream from mouth, 1.7 miles downstream from bridge on U. S. Highway 

85,2 miles northeast of San Acacia, and 15 miles north of Socorro. Water-stage recorder at railroad bridge, 4,000 feet downstream, and at different datum used Oct. 1 

to Dec. 19, 1947. 

Records available.- 1940-47 (miscellaneous discharge measurements at nearby sites, records equivalent), October 1947 to September 1948. 

Extremes.- Maximum discharge during year, 2,400 second-feet Sept. 26 (gage height, 10.7 

feet), from rating curve extended above 580 second-feet by logarithmic plotting; no 

flow at times. 

Remarks.- Records poor. Diversions above station for irrigation. Records of suspended 

sediment loads for the water year 1948 are given in Water-Supply Paper 1133. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

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 

".!°"9 0000 

WON X 0000000 00000 000 pry<D ION°

00000 00000 00000 00000 00000 00000

j 00000 00000 00000 !Xl.m.t t,O ,t0 0r000 

WM .. M 

000000000

000000 00000 0 0 % 

3.8 0 

0 0 

1.1 0 

9.2 0 

al 0 

.e 0 1.3 0 

1.8 0 

al 0 

a.5 0 

a0 0 

a0 0 

12 0 

17 0 

al 0 

a0 0 

a0 0 

a0 0 

a0 3.6 

a0 4.5 

a0 1.6 

a0 1.2 a0 0 

a0 0 

a0 0 

a0 351 a0 47 

a0 al0 

a0 212 

a0 a0 31 0 _ 

Month Secondfoot-days Maximum Minimum Mean Runoff in 

acre-feet 

October 

November 

December 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

Calendar year 

- -

— 

_ — 

- -

January 0 0 0 0 0 :A February 29.1 11 0 1.0 58 March 0 0 0 0 0 April 0 0 0 0 0 May .1 .1 0 .003 .2 June 55.2 42 0 1.84 109 July 268.6 160 0 8.66 533 August 50.5 17 0 1.63 100 September 420.9 351 0 14.0 835 

Water year 1947-48 824.4 351 • 0 2.25 1,640 

Peak discharge (base, 800 sec.-ft.).- July 26 (8:15 a.m.) 1,120 sec.-ft.; Sept. 26 (5 a.m.) 2,400 sec.-ft. 

a No gage-height record; discharge computed on basis of available recorder trace, discharge meas- urements, and recorded range in stage. 

d Doubtful gage-height record; discharge computed as explained in footnote a. 
RIO GRANDE BASIN 315 

Socorro main canal north at San Acacia, N. Mex. 

Location.- Water-stage recorder, lat. 34°15'15", long. 106°53'50", in SaNWi sec. 1, T. 

1 S., H. 1 W., at San Acacia, half a mile downstream from point of diversion from Rio 

Grande. Zero of gage is 4,659.74 feet above mean sea level, datum of 1929. 

Records available.- April 1936 to September 1948. 

Extremes.- Maximum daily discharge during year, 165 second-feet July 14; no flow at times 

1957-48: Maximum daily discharge, 234 second-feet Aug. 26, 1938; no flow at times. 

Remarks.- Records fair. Canal diverts water from right bank of Rio Grande for irrigation. 

Three acequias, together irrigating about 300 acres, divert water from canal above station. Monthly discharge, in second-feet. water year October 1947 to September 1948 

Runoff in Month Maximum Minimum Mean acre-feet 

October 113 54 80.6 4,960 

November 23 0 .8 46 

December 0 0 0 0 

Calendar year 1947 179 0 82.8 59,960__— 

January 10 0 .8 52 

February 0 0 C 0 

March 112 0 52.8 3,250 

April 126 32 102 6,080 

May 155 0 109 6,680 

June 143 0 110 6.560 

July 165 70 133 8,210 

August 162 37 92.4 5,680 

September 135 0 67.1 3,990 

Water year 1947-48 165 0 62.7 45,510 

Socorro main canal south near San Antonio, N. Mex. 

Location.- Water-stage recorder, lat. 33°53'30", long. 106°52'00", in NWi sec. 8, T. 5 

S., H. 1 E., 0.2 mile north of San Antonio School and miles south of San Antonio. 

Records available.- April 1937 to July 1938 at site li miles downstream (published as 

Socorro main canal south at end near San Antonio) and March to September 1948. 

Extremes.- Maximum daily discharge during period, 27 second-feet Apr. 24, May 23; no 

Flow Far. 18, Aug. 25, 26. 1937-38, 1948: Maximum daily discharge, 33 second-feet Sept. 11, Oct. 16, 1937; 

no flow at times. 

Remarks:- Records good. Canal diverts water from Socorro riverside drain for irrigation. 

Lateral diversions above gage. 

Monthly discharge, in second-feet, March to September 1948 

Runoff In Month Maximum Minimum Mean acre-feet 

January - - - - February - - - -

March 18-31 17 0 8.49 236 

April 27 2.6 12.4 737 

May 27 4.4 12.3 755 

June 24 3.9 10.6 628 

July 12 .? 5.85 359 

August 14 0 4.77 293 

September 13 .3 4.47 266 

The period - - - 3,270 

San Antonio Riverside drain near San Antonio, N. Mex. 

Location.- Water-stage recorder, lat. 33°52'10", long. 106°51'30", 300 feet south of 

north boundary of Bosque del Apache Grant (Wildlife Refuge), a quarter of a mile upstream from Elmendorf interior drain, 1 mile east of highway and railroad, 2} miles 

upstream from mouth, and 3 miles south and mile east of San Antonio. 

Records available.- March to September 1948. Station by same name but 50 feet below 

Elmehdori Interior drain published May 1936 to February 1938, records not comparable. 

Extremes.- Maximum daily discharge during period, 113 second-feet May 27, 28; minimum 

daily, 11 second-feet Sept. 8, 9. 

Remarks.- Records fair. Diversions below gage. Interior drains and canal wasteways 

above gage. 

Monthly discharge,it second-feet March to September 1948_ 

Runoff in Month Maximum Minimum Mean acre-feet 

January - -

February - - - March 15-31 65 54 59.0 

April 81 59 70.6 

May 113 65 79.6 

June 110 45 74.5 

July 67 43 54.3 

August 45 16 37.1 

September 30 11 18.2 

The period -- - 22,220 Ei`i .`g ' ` 
316 RIO GRANDE BASIN 

San Antonio Riverside drain near San Marcial, N. Mex. 

Location.- Water-stage recorder, lat. 33°44'50", long. 106°55'30", in Bosque del Apache 

Grant (Wildlife Refuge), half a mile upstream from outlet to Rio Grande, 5 miles northeast of San Marcial, and 10 miles south of San Antonio. 

Records available.- March to September 1948. 

Extremes.- Maximum daily discharge during period, 157 second-feet May 31, June 1; minimum 

daily, 6.4 second-feet Sept. 15. 

Remarks.- Records good except those for periods of no gage-height record, which are fair. 

Diversions above station for irrigation. 

Monthly discharge,in second-feet, March to September 1948 

Runoff in Month Maximum Minimum Mean acre-feet 

75.9 

April 105 75 86.0 March 19-31 80 67 

May 157 76 94.2 

June 157 72 110 

July 76 52 62.6 

August 56 25 45.1 

September 22 6.4 14.4 

- The period - - 26,880 

Elmendorf Interior drain near San Antonio, N. Mex. 

Location.- Water-stage recorder, lat. 33°52'15", long. 106°52'05", in SWi sec. 17, T. 5 

S., h. 1 E., 550 feet north of north boundary of Bosque del Apache Grant (Wildlife 

Refuge), 0.3 mile east of highway and railroad, and 3 miles south of San Antonio. 

Records available.- July 1936 to January 1938 and March to September 1948. 

Extremes.- Maximum daily discharge during period, 11 second-feet Aug. 18; minimum daily. 0.2 second-foot Aug. 29 to Sept. 2. 

1936-38. 1948: Maximum daily discharge not determined in 1936-38; minimum daily 

discharge, that of Aug. 29 to Sept. 2, 1948. 

Remarks.- Records good. 

Monthly discharge, in second-feet, March to September 1948 

Runoff in Month Maximum Minimum Mean acre-feet 

March 11-31 6.7 0.3 2.14 89 April 3.3 .9 2.03 121 May 5.1 1.6 2.74 168 June 4.2 1.6 2.61 155 July 4.6 .6 1.71 105 August 11 .2 3.68 227 September 3.7 .2 .73 43 

The period - -- 908 

s''TFr ' 

‘ '`HO' ''O 
RIO GRANDE BASIN 317 

Pecos River near Pecos, N. Mex. 

Location.- Water-stage recorder, let. 35°42'25", long. 105°41'00", in NENEi sec. 17, T. 17 

N., R. 12 E., at bridge on private road, 600 feet upstream from Indian Creek, 2 miles 

downstream from Holy Ghost Creek, and 11 miles north of Pecos. 

Drainage area.- 189 square miles (contributing area). 

Records available.- March 1910 to December 1914 (published as Pecos River near Cowles) and 

October 1930 to September 1948 in reports of Geological Survey. March 1910 to December 

1931 (published as Pecos River near Cowles prior to 1926) in reports of State engineer. 

Average discharge.- 18 years (1930-48), 108 second-feet. 

Extremes.- Maximum discharge during year, 749 second-feet May i7 (gage height, 3.66 feet); 

minimum daily, 12 second-feet Jan. 27-29. 

1930-48: Maximum discharge, 1,960 second-feet May 14, 1941 (gage height, 4.57 

feet); minimum daily, 6.1 second-feet Jan. 16, 1934. 

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are poor. Diversions above station for irrigation. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 

2 

3 

4 

5 

28 

30 

30 

28 

27 

20 

21 

22 

21 

20 

14 

16 

18 

20 

18 

16 

16 

17 

18 

19 

28 

29 

31 

29 

33 

44 

46 

54 

65 

75 

417 

387 

364 

327 

350 

474 

479 

562 

522 

474 

143 

137 

124 

119 

115 

48 

48 

49 

54 

115 

37 

35 

33 

32 

30 

6 

7 

8 

9 

10 

27 

25 

27 

25 

26 

20 

20 

20 

20 

20 

18 

20 

20 

18 

16 

18 

18 

18 

16 

16 

34 

34 

34 

34 

42 

83 

89 

95 

110 

146 

373 

407 

427 

387 

345 

432 

514 

463 

417 

402 

107 

99 

93 

85 

83 

76 

61 

61 

53 

49 

28 

28 

28 

30 

29 

11 

12 

13 

14 

15 

24 

27 

41 

89 

58. 

18 

18 

18 

16 

16 

16 

16 

16 

16 

16 

20 

22 

24 

25 

27 

38 

33 

35 

32 

30 

185 

163 

143 

154 

191 

309 

288 

267 

288 

336 

426 

484 

407 

364 

327 

83 

76 

71 

70 

68 

47 

53 

52 

47 

44 

29 

29 

28 

26 

25 

16 

17 

18 

19 

20 

46 

40 

37 

34 

32 

18 

18 

18 

18 

18 

16 

16 

16 

16 

16 

25 

25 

25 

26 

25 

34 

30 

32 

32 

34 

233 

280 

345 

378 

387 

a390 

453 

522 

580 

702 

300 

271 

244 

252 

318 

65 

64 

71 

85 

78 

42 

44 

54 

83 

53 

27 

27 

26 

26 

25 

N c;.`re

32 16 18 32 32 373 696 233 75 49 24 16 18 33 36 336 696 244 71 53 24 16 16 32 37 327 658 229 65 47 24 16 16 29 47 292 622 198 60 44 24 16 16 30 •52 240 574 179 65 52 26 

21 

22 30

23 28

24 29

25 28

26 27 16 14 30 46 215 512 166 65 42 39 27 28 16 12 29 43 222 490 179 58 39 32 28 17 16 12 27 48 240 474 179 57 37 29 29 28 16 12 28 55 340 442 163 54 36 27 30 28 16 14 52 417 432 151 52 35 29 31 26 14 14 47 442 52 35 -

Month Secondfoot-days Maximum Minimum Mean Runoff in 

acre-feet 

October 

November 

December 

1,012 636 

554 

89 

27 

22 

24 

18 

14 

32.6 

21.2 

17.9 

2,010 

1,260 

1,100 

Calendar year 1947 24,142 640 14 66.1 47,890 

January 

February 

March 

April 

May 

June 

July 

August 

September 

500 

686 1,153 

6,268 

13,957 

10,053 

2,510 

1,602 856 

20 

33 

55 

417 

702 

562 

143 

115 

39 

12 

16 

28 

44 

267 

151 

52 

35 

24 

16.1 

23.7 

37.2 

209 

450 

335 

81.0 

51.7 

28.5 

992 1,360 

2,290 

12,430 

27,680 

19,940 

4,980 

3,180 

1,700 

Water year 1947-48 39,787 702 12 109 78,920 , s _ Peak discharge ase, 310 sec.-ft.).- Apr. 20 (10 p.m. 432 sec.-ft.: Apr. p.m. sec.- .; 

May 19 (1-130 p.m.) 749 sec.-ft.; June 7 (2:30 p.m.) 683 sec.-ft.; June 11 (10:30 p.m.) 722 sec.-ft.; 

June 20 (2:30 a.m. 463 sec.-ft. •Winter discharge measurement made on this day. a No gage-height record; discharge interpolated.

Note.- Stage-discharge relation affected by ice Nov. 8-12, Nov. 15 to Feb. 20, Mar. 11-13 (no gagehefgEr-iecord Jan. 19-21, Jan. 28 to Feb. 3, Feb. 5-18; discharge computed on basis of weather records, 

discharge measurements, and records for stations downstream). 
RIO GRANDE BASIN 318 

Pecos River near Anton Chico, N. Mex. 

Location.- Water-stage recorder, lat. 35°10,50°, long. 105°06,20", in Anton Chico Grant, 

2 miles upstream from Canycn Blanco, 2f miles southeast of Anton Chico, and 10 miles 

downstream from Tecolote Creek. 

Drainage area.- 1,050 square miles (contributing area). 

Records available.- April 1910 to December 1914 and October 1930 to September 1948 in reports or Geological Survey. April 1910 to December 1931 in reports of State engineer. 

During successive periods prior to July ?, 1937, station was at five different sites 

ranging from a sixth of a mile to 5 miles upstream from present site. 

Average discharge.- 18 years (1930-48), 148 second-feet. 

Extremes.- Maximum discharge during year, 2,140 second-feet July 7 (gage height, 4.77 feet); 

minimum daily, 0.7 second-foot Sept. 3, 6-9. 

1930-48: Maximum discharge, 40,300 second-feet June 1, 1937 (gage height, 20.34 

feet, present site and datum), by slope-area method; no flow at times. 

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are poor. Diversions above station for irrigation. 

Discharge, In second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July A Sept. 

2.8 12 16 b12 b25 42 126 478 445 77 14 al 

2 5.2 9.7 15 .1,14 b29 42 101 478 484 72 32 .9 

3 5.5 11 18 b16 b31 48 104 440 508 67 5S .7 

4 7.1 13 19 12 b29 43 113 410 544 63 140 1.2 

5 4.6 12 17 14 30 b40 134 357 478 58 409 1.7 

2.3 all 17 15 29 b37 159 374 425 173 228 .7 

7 

6 2.1 8.6 19 7.4 18 34 180 388 401 334 10, .7 

8 2.3 6.7 .22 7.1 17 46 187 406 508 128 78 .7

9 2.5 5.5 18 7.1 .11 .43 201 435 445 63 73 .7 

10 2.6 5.2 13 10 19 43 211 430 392 54 550 19 

11 5.5 5.2 14 12 24 62 248 435 383 44 a3S 3.7 12 6.3 7.1 12 12 23 61 329 396 440 38 a2S 1.8 13 7.4 6.3 b14 11 24 57 314 361 472 22 a20 1.7 14 51 5.5 b10 13 57 56 275 318 378 10 8.6 1.6 15 148 5.7 bll 10 63 50 263 322 322 11 21 1.6 

16 90 8.2 b13 .10 54 50 290 378 281 107 78 1.7 17 61 9.3 b12 b9 39 50 345 450 248 118 49 1.6 18 46 9.0 b13 9.0 48 47 415 508 216 95 9.1 1.7 19 38 9.3 b12 b10 44 53 490 568 189 30 10 2.8 20 30 9.7 b12 bll 45 54 496 650 394 31 18 1.7 

21 24 10 .12 b12 47 50 496 706 297 28 34 1.6 22 22 11 11 b14 47 55 514 685 208 24 20 1.8 23 23 14 12 b12 42 55 455 692 182 51 50 1.6 24 30 15 12 b15 40 54 445 671 187 45 22 1.4 25 23 15 14 17 41 66 388 643 157 22 9.1 1.4 

26 23 15 11 20 a42 99 325 587 118 38 a4 4.7 27 23 17 7.8 9.7 a35 110 275 514 96 109 a2 12 28 15 19 8.2 16 .31 107 278 520 77 72 al 7.0 29 13 20 10 .b20 40 104 281 466 98 33 al 3.2 30 13 20 8.6 b22 114 383 425 80 22 al 11 31 13 b8 b23 129 415 18 al 

Second- Runoff in foot-days acre-feet Month Maximum Minimum Mean 

October 742.2 148 2.1 23.9 1,470 November 326 20 5.2 10.9 647 December 411.6 22 7.8 13.3 816 

Calendar year 1947 18,143.5 556 .8 49.7 35,990 

January 402.3 23 7.1 13.0 798 February 1,024 63 11 35.3 2,030 March 1,901 129 34 61.3 3,770 April 8,821 514 101 294 17,500 May 14,906 706 318 481 29,570 June 9,453 544 77 315 18,750 July 2,057 334 10 66.4 4,080 August 1,602.8 409 1 51.7 3,180 September 92.9 19 .7 3.11 184 

Water year 1947-48 41,739.8 706 .7 114 82,800 

Peak discharge (base,2,200 sec.-ft.).- N beak above base. nterdischarge measurement made on this day. a No gage-height record: discharge computed on basis of weather records and records for stations near Pecos and at Santa Rosa. b Stage-discharge relation affected by ice. 
RIO GRANDE BASIN 319

Pecos River at Santa Rosa, N. Mex. 

Location.- Water-stage recorder and concrete control, lat. 34°56'05", long. 104°41,25", In 

SWISW1 sec. 2, T. 8 N., H. 21 E., at bridge on U. S. Highway 66 at Santa Rosa, 1 mile 

upstream from Rio Agua Negra Chiquita. 

Drainage area.- 2,650 square miles (contributing area). 

Records available.- May 1903 to December 1906 (gage heights only), February 1910 to July 

iaii, September 1912 to December 1914, and October 1930 to September 1948 in reports of 

Geological Survey. February 1910 to July 1911 and September 1912 to December 1931 in 

reports of State engineer. 

Average discharge.- 29 years (1912-14, 1916-23, 1928-48), 169 second-feet. 

Extremes.- Maximum discharge during year, 13,300 second-feet June 3 (gage height, 10.33 

feet); minimum daily, 12 second-feet Jan. 28. 

1930-48: Maximum discharge, 55,200 second-feet June 2, 1937 (gage height, 25.7 

feet), from rating curve extended above 32,000 second-feet by logarithmic plotting; minimum daily, 2.7 second-feet June 25, 1937. 

Remarks.- Records good except those above 500 second-feet, which are fair, and those for 

moods of ice effect, which are poor. Several diversions above station for irrigation. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 18 23 22 b18 b22 21 37 191 236 32 40 2F 

2 21 23 22 •b18 25 21 40 250 296 34 202 26 

3 21 22 28 26 29 20 32 250 3,310 35 88 29 

4 21 22 26 22 33 18 23 231 658 33 37 28 

5 19 22 22 20 31 26 21 183 387 31 209 25 

6 20 21 .22 19 33 28 21 135 375 40 650 25 7 19 21 22 .21 26 22 29 163 301 83 195 26 

8 21 21 21 21 21 22 48 159 260 469 95 26 

9 21 20 23 20 .23 20 64 179 351 218 55 28 10 21 21 21 19 22 17 67 208 265 83 38 28 

11 21 21 23 19 20 29 85 191 231 62 34 26 

12 21 22 b21 18 21 25 124 222 433 47 34 26 

13 28 22 b20 17 b25 23 213 171 535 35 32 28 

14 36 23 b20 17 b25 20 183 141 393 35 33 26 

15 29 22 21 19 32 18 128 106 240 33 33 26 

16 30 23 19 18 26 19 112 85 163 38 40 26 

17 47 2.4 b17 •b17 21 19 141 141 115 32 30 28 

18 34 24 19 b16 19 18 213 231 83 48 49 28 

19 26 23 21 b16 •18 17 312 280 64 112 31 29 

20 24 22 20 b17 17 17 369 369 210 44 26 26 

21 22 22 .21 b17 18 16 363 505 824 34 29 26 

22 21 22 19 b17 18 17 351 482 280 35 26 26 

23 20 24 19 b17 18 17 312 454 138 60 29 25 

24 21 22 19 b18 19 17 280 461 78 41 28 24 

25 21 23 19 b18 21 16 255 426 58 40 29 25 

26 20 23 19 b18 24 15 200 387 41 41 29 26 

27 20 23 20 14 21 16 145 728 35 116 29 25 

28 20 22 19 b12 18 17 92 498 33 143 28 25 

29 21 22 19 b16 18 26 76 296 32 51 29 26 

30 21 22 18 •b20 28 67 222 32 45 29 26 

31 22 - 18 b20- 31 - 204 - 43 28 -

. Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 727 47 18 23.5 1,440 

November 667 24 20 22.2 1,320 

December 640 28 17 20.6 1,270 

Calendar year 1947 15,507 593 17 42.5 30,750 

January 565 26 12 18.2 1,120 

February 664 33 17 22.9 1,320 

March 636 31 15 20.5 1,260 

April 4,403 369 21 147 8,730 

May 8,549 728 85 276 16,960 

June 10,457 3,310 32 349 20,740 

July 2,193 469 31 70.7 4,350 

August 2,264 650 26 73.0 4,490 

September 790 29 24 26.3 1,570 

Water year 1947-48 32,555 3,310 12 88.9 64,570 

Peak discharge (base, 3,200 sec.-ft.).- May 27 (10:15 p.m.) 4,900 sec.-ft.; June 3 (11 a.m.) 

13,900 sec.-f6. •Winter discharge measurement made on this day. b Stage-discharge relation affected by ice. 
		

320 RIO GRANDE BASIN 

Pecos River near Puerto de Luna, N. Mex. 

Location.- Water-stage recorder and concrete control, lat. 34°43', long. 104°32', in sec. 

29, T. 6 N., R. 23 E., 10 miles southeast of Puerto de Luna and 14 miles upstream from 

Alamogordo Dam. 

Drainage area.- 3,970 square miles (contributing area). 

Records available.- April 1938 to September 1948. 

Average discharge.- 10 years, 274 second-feet. 

Extremes.- Maximum discharge during year, 9,020 second-feet June 3 (gage height, 5.22 

reet); minimum daily, 60 second-feet Jan. 28, 29. 

1938-48: Maximum discharge, 48,600 second-feet Sept. 1, 1942 (gage height, 17.00 

feet), from rating curve extended above 7,400 second-feet on basis of flow at Santa 

Rosa; minimum daily, 50 second-feet June 11-13, 1946. 

Remarks.- Records good except those for periods of ice effect or doubtful or no gage-height 

records, which are poor. Many diversions above station for irrigation. Discharge represents inflow to Alamogordo Reservoir (capacity, 157,000 acre-feet). Records of chemical analyses for the water year 1948 are given in Water-Supply Paper 1133. 

Cooperation.- Gage-height record collected in cooperation with Bureau of Reclamation. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

118 118 115 d200 395 94 82 80 

8" '22 ` ;IS' O' f'DT `,43'1 ci"ci;(c3 `c3 c:TO `c° ,T.c3( O",e,,V` r'-.,.'2 1-s.s An S' c ° 82 ,-....

,,-, ,r-Ir-I .-. I. , ,I-I r`l .r , r-I O..'I I-I ..... II 03 03 r-. , 

.1) . 

1 82 91 103 2 85 97 112 b120 126 106 d240 413 78 85 80 103 d240 2,470 75 373 •

3 88 94 126 88 4 85 94 136 5 82 97 126 

6 80 103 129 7 82 103 112 

106 112 122 118 94 d240 1,320 94 122 80 146 115 82 d210 735 828 97 80 

140 112 85 195 520 308 557 80 

140 109 72 195 370 150 363 91

8 80 94 109 132 115 80 205 294 417 215 85 9 82 97 100 122 100 115 225 258 394 154 88

10 85 91 112 •115 97 115 252 252 264 106 91

109 94 115 264 246 154 80 88 b70 106 140 300 246 136 78 85 11 85 106 106 12 88 106 94 13 132 118 100 b80 115 200 258 881 106 72 91 14 170 122 97 b100 115 230 225 766 82 82 82 112 100 200 205 321 82 360 91 

115 103 190 162 276 94 100 94 112 115 174 174 240 103 100 97 103 112 182 225 190 106 82 94 .103 100 d270 264 146 136 109 97 

109 109 d400 307 178 154 85 94 

15 122 109 94 

16 109 112 112 

17 106 126 91 

18 136 129 91 

19 112 112 94 

20 106 115 103 

21 103 115 106 100 88 4380 418 621 97 70 94

22 97 112 100 97 88 d370 426 378 94 75 94

23 100 112 88 106 97 d350 450 258 132 72 91

24 97 106 94 106 91 d310 460 182 143 75 88

25 103 103 97 115 82 276 470 146 118 72 91

26 106 109 91 132 91 235 418 115 158 78 85 132 85 186 370 97 663 72 91 122 82 174 859 88 685 78 85 27 109 103 103

28 106 106 103

29 100 103 91 109 88 162 370 97 150 68 94

30 100 109 97 91 154 342 91 115 78 91

31 97 103 97 428 97 78

Second- Runoff in foot-days acre-feet Month Maximum Minimum Mean 

October 3,115 170 80 100 6,180 November 3,194 129 91 106 6,340 December 3,220 136 88 104 6,390 - _ Calendar year 1947 43,238 1,030 62 118 85,780 - January 3,241 126 60 105 6,430 February 3,293 146 70 114 6,530 March 3,171 ' 126 82 102 6,290 April 5,665 400 72 189 11,240 May 9,597 859 162 310 19,040 June 10,590 2,470 88 420 24,970 July 6,307 828 75 203 12,510 August 4,118 557 68 133 8,170 September 2,660 97 80 88.7 5,280 

Water year 1947-48 60,171 2,470 60 164 119,400 

Peak dischargebase, 3,500 sec.-ft.).- May 28 (2:45 a.m.) 3,540 sec.-ft.; June 3 (4:15 p.m.) 9,020 sec.-ft.; June 13 p.m.) 5,42 sec.-ft.; July 5 (8 p.m.) 7,050 sec.-ft.; July 27 (8:45 p.m.) 3,780 sec.-ft. •Winter discharge measurement made on this day. a No gage-height record; discharge computed on basis of available recorder trace, weather records, and records for station at Santa Rosa. b Stage-discharge relation affected by ice. 

d Doubtful gage-height record; discharge computed as explained in footnote a. 
321 RIO GRANDE BASIN 

Pecos River below Alamogordo Dam, N. Mex. 

Location.- Water-stage recorder, lat. 34°36'20". long. 104°23'10", in lot 1 sec. 2, T. 4 

N., R. 24 E., 1,200 feet downstream from Alamogordo Dam, 14 miles downstream from 

Alamogordo Creek, and 4i miles northeast of Guadalupe. Datum of gage is 4,142.67 feet 

above mean sea level (Bureau of Reclamation datum). 

Drainage area.- 4,390 square miles (contributing area). 

Records available.- October 1`912 to December 1914, October 1930 to September 1936 (at site 

If miles upstream), and September 1936 to September 1948 in reports of Geological Survey. October 1912 to December 1931 in reports of State engineer. 

Average discharge.- 21 years (1913-16, 1918-25, 1926-37), 264 second-feet (prior to completion of Alamogordo Dam), 11 years (1937-48) 272 second-feet. 

Extremes.- Maximum daily discharge during year, 1,390 second-feet July 20; minimum daily, 

1.1 second-feet Nov. 6, 15, 17, 20, Jan. 18-20. 

1930-48: Maximum discharge, 42,800 second-feet Sept. 1, 1942, by computation of flow 

over spillway and through outlet gates of Alamogordo Dam by Bureau of Reclamation; maximum gage height, 13.58 feet Sept. 22, 1941, from floodmark; no flow at times. 

Remarks.- Records good except those between 150 and 300 second-feet and those below 5 second-feet, which are fair. Diversions above station for irrigation. Flow regulated by 

Alamogordo Reservoir (see p. 241). Records of chemical analyses for the water year 

1948 are given in Water-Supply Paper 1133. 

Discharge,in second-feet, water year October 1947 to September 1948 

Sept. Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. 

,..,, ..Z.;,;L., OngtOre,5O.8rj "c =g niErsi."?. 22ei V.ge.

44

cu-mfg :5.3:=grg&-:.1 ,'nE6s4 

91 

97 

94 

82 

82 

82 

85 

100 

89 

80 

80 

80 

80 

82 

84 

85 

86 

86 

86 

86 

86 

86 

85 

85 

85 

85 

97 

85 

71 

71 

1 95 93 1.4 2.2 1.7 2.4 1.7 91 65 

96 94 1.4 1.9 1.4 2.4 1.7 91 1.7 2 96 94 1.6 1.6 1.2 2.2 1.7 93 1.2 3 

4 86 93 1.6 1.6 1.4 2.2 1.7 94 18

5 81 36 1.6 1.6 1.7 2.2 834 94 52 

6 82 1.1 1.6 1.6 1.4 1.9 1,380 95 80 

7 82 1.4 1.6 1.4 1.4 1.9 1,340 97 100

8 8? 1.4 1.9 1.4 1.2 2.2 1,310 97 93

9 82 1.4 1.9 1.4 1.4 2.4 1,290 98 100

10 82 1.4 1.6 1.4 1.4 2.7 1,260 99 109 

82 1.4 1.6 1.4 2.4 2.7 1,230 100 100 11 83 1.4 1.6 1.4 2.2 2.7 1,240 101 103 12 84 1.4 1.6 1.4 1.9 2.7 1,240 103 99 13 86 1.4 1.6 1.4 1.9 2.7 1,230 103 102 14 85 1.1 1.6 1.4 1.4 2.2 1,200 93 98 15 

16 78 1.4 1.9 1.4 1.4 2.4 1,150 99 92 

75 1.1 1.9 1.4 1.4 2.4 1,100 119 95 17 75 1.4 1.9 1.1 1.4 2.4 1,080 111 96 18 76 1.4 1.9 1.1 1.4 2.7 991 111 85 19 76 1.1 1.6 1.1 1.7 1.7 952 108 86 20 

21 76 1.4 1.6 1.2 1.9 1.7 636 108 86 

76 1.4 1.6 1.2 2.7 1.4 502 106 97 22 

23 76 2.2 1.6 1.2 2.4 1.4 502 98 104 

24 76 2.6 1.6 1.2 2.2 1.4 510 84 103 

25 76 2.2 1.6 1.2 2.4 1.4 502 1.2 105 

26 75 1.6 1.6 1.2 2.4 1.4 247 95 104 

27 96 1.4 1.6 1.4 2.2 1.4 163 97 104 

28 100 1.4 1.4 1.7 1.9 1.4 90 91 105 

29 93 1.4 1.6 1.7 1.9 1.4 91 99 95 

30 93 1.4 1.9 1.7 - 1.7 91 105 95 

31 93 1.9 1.7 - 1.7 - 103 - -

Month Secondfoot-days Maximum Minimum Mean Runoff ln 

acre-feet 

October 

November 

December 

2,594 446.8 

51.4 

100 

94 

1.9 

75 

1.1 

1.4 

83.7 , 

14.9 

1.66 

5,150 886 

102 

Calendar year 1947 49,351.3 1,450 1.1 - 135 97,890 

January 

February 

March 

April

May 

June 

July 

August 

September 

44.6 

51.3 

63.4 22,167.8 

2,984.2 

2,573.9 

17,691 

7,421.7 

2,553 

2.2 

2.7 

2.7 1,380 119 

109 1,390 

1,200 100 

1.1 

1.2 

1.4 

1.7 

1.2 

1.2 

82 

9.7 

71 

1.44 

1.77 

2.05 739 

96.3 

85.8 

571 

239 

85.1 

88 

102 

126 43,970 

5,920 

5,110 

35,090 

14,720 

5,060 

Water year1947-48 58,643.1 1,390 1.1 160 116,300 
322 RIO GRANDE BASIN 

Pecos River near Acme, N. Mex. 

Location.- Water-stage recorder, lat. 33°32,10", long. 104°22,40", in NWT sec. 14, T. 

9 S., N. 25 E., 1 mile southeast of Melena railroad station, 3f miles downstream from 

Salt Creek, 5 miles southwest of Acme, and 13 miles northeast of Roswell. 

Drainage area.- 11,380 square miles (contributing area). 

Records available.- July 1937 to September 1948 in reports of Geological Survey. August 

1921 to July 1523 in reports of State engineer. 

Average discharge.- 11 years (1937-48), 272 second-feet. 

Extremes.- Maximum discharge during year, 2,140 second-feet Aug. 2 (gage height, 5.69 

reet); no flow at times. 

1937-48: Maximum discharge, 45,000 second-feet Sept. 23, 1941 (gage height, 13.71 

feet), from rating curve extended above 15,000 second-feet by logarithmic plotting; 

no flow at times. 

Maximum discharge during flood of May 28, 1937, 53,000 second-feet (gage height, 

14.82 feet, from floodmarks, site and datum then in use), by slope-area mthod. 

Remarks.- Records good. Diversions above station for irrigation. Flow regulated by 

Alamogordo Reservoir (see p.241). Records of chemical analyses for the water year 1948 

are given in Water-Supply Paper 1133. 

Discharge, in second-feet, water year October 1947 to September 194a 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May J une July Aug. Sept. 

1 

2 

3 

4 

5 

0 

0 

0 

0 

13 

0 

0 

0 

0 

0 

0 

0 

0 

0 

44 

26 

18 

14 

10 

494 

612 

608 

135 

58 

0 

0 

0 

0 

950 1,540 

1,010 

1,370 

1,140 

6 

7 31 

67 1 0 37 a7 

4 28 

17 

0 

0 838 

350 

8 

10 

47 

23 

14 

0 

0 950 1,030 

1,060 

2 

0 

9 

4 

1 

61 

98 

40 

164 

79 

42 

11 

12 

13 

14 

15 

10 

•b3 

2 

2 

2 0 

1,060 

1,030 

1,050 

1,090 978 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

12 

0 

0 

0 

0 

24 

16 

13 

10 

16 

16 

17 

18 

19 

20 

06 

3 

12 

14 

4 

0 

0 

0 

0 

0 

992 

978 

964 

912 

888 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

393 

123 

64 

29 

14 

21 

22 

23 

24 

25 

2 

1 

0 

0 

0 

0 

0 

0 

0 

0 

875 

925 

576 

294 

283 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

707 1,200 

1,010 964 

7 

2 

0 

0 

0 

26 

27 

28 

29 

30 

31 

0 

0 

0 

0 

0 

0 

0 

0 

300 

277 

277 

144 

81 

0 

8 

48 

24 

7 

2 

0 

0 

0 

0 

0 

1,010 938 

875 

964 1,010 978 

0 

0 

0 

0 

0 

Month Secondfoot-days Maximum Minimum Mean Runoff in 

acre-feet 

October 

November 

December 

0 

0 

0 

0 

0 

0 

0 

0 0 

0 

0 

0 

Calendar year 1947 28,029 1,180 0 76.8 55,600 

January 

February 

March 

April 

May 

June 

July 

August 

September 

0 

258 6 17,051 215 1,966 

9,867 

8,194 0 

0 

67 

1 1,090 48 

612 1,200 

1,540 0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

8.9 

.2 568 6.9 

65.5 

318 

264 0 

0 

512 

12 33,820 426 3,900 

19,570 

16,250 0 

Water year 1947-48 37,557 1,540 0 103 74 490 

Peak discharge (base, 1,400 sec.-ft. June 1 (9 a.m.) 1,480 sec.-ft.; July 23 (12:30 p.m.) 1,610 sec.-ft.; Aug. -2 !8 p.m.) 2,140 sec.-f . 0

•Winter discharge measurement made on this day. a No gage-height record; discharge computed on basis of available trace, weather records, and rec- ords for station below Alamogordo Dam. b Stage-discharge relation affected by ice. 
- - - 

323 RIO GRANDE BASIN 

Pecos River near Lake Arthur, N. Mex. 

Location.- Water-stage recorder, lat. 32°59.25", long. 104°19.10", on line between secs. 

lb and 27, T. 15 S., R. 26 E., 1,100 feet upstream from highway bridge, 3 miles east of 

Lake Arthur, 10 miles upstream from Cottonwood Creek, and 11 miles northeast of Artesia. 

Drainage area.- 14,760 square miles (contributing area). 

Records available.- August 1938 to September 1948. 

Average discharge.- 10 years (1938-48), 400 second-feet. 

Extremes.- Maximum discharge during year, 8,120 second-feet June 3 (gage height, 10.2 

Peet, from floodmarks); minimum daily, 4 second-feet Apr. 7, 8. 

1938-48: Maximum discharge, 49,600 second-feet Sept. 24, 1941 (gage height, 21.90 

feet), from rating curve extended above 16,100 second-feet on basis of slope-area determinations at gage height 21.77 feet and logarithmic plotting; no flow Aug. 21, 22, 

1947. 

Flood of May 30, 1937, reached a stage of 21.77 feet (discharge, 51,500 second-feet, 

by slope-area method), but may have been exceeded by floods of 1904 and 1919. 

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are fair. Diversions above station for irrigation. Flow partly regulated by 

Alamogordo Reservoir, 150 miles above station (see p. 241). 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. .eflgt MgT, vimt gvAtt 

t:ttt.

100 80 87 *70 149 163 21 806 11 

104 80 85 69 117 2,180 17 1,080 al0 

111 78 83 68 92 a5,000 19 1,420 a8 

124 80 87 70 69 a2,000 35 854 5.0 

122 76 111 b72 64 973 34 1,340 15 

115 75 1.124 b76 56 a500 143 1,010 27 

109 75 134 76 49 a300 104 758 16 

102 75 117 72 43 a200 66 391 18 

102 76 102 70 54 149 50 202 39 

102 74 a125 74 47 139 58 139 39 

1 20 

2 18

3 17 

4 19

5 21

6 28 

7 31 

8 32 

9 31 

10 33 

11 35 12 35 

13 46 

14 48 15 48 

16 44 17 41 

E ai 1 2,9g8 '882(4EiM V 

100 74 a100 75 

(.836 136 87 104 33

100 72 a90 *76 42 127 60 63 35 44 119 36 38 34 

37 113 24 25 28 

43 91 19 33 34 

46 78 16 97 36 

44 74 13 278 35 38 69 13 159 34 28 63 16 104 35 26 70 10 64 36 

23 64 7.8 44 31 24 56 12 39 28 

100 70 *a95 62 

100 *70 a90 59 102 70 a85 63 

102 72 a80 54 100 70 80 48 

18 41 98 70 80 46

19 42 94 70 82 49

20 40 96 75 75 41

21 42 96 69 82 40 

22 42 91 69 83 38

23 41 72 74 75 35 32 46 451 41 29

24 42 69 76 74 30 32 37 982 25 24 78 74 30 29 40 870 16 21 

34 37 854 15 19 28 35 950 12 27 25 32 902 8.7 28 28 24 838 11 30 

25 43 69 

26 44 69 76 80 23

27 46 69 78 83 20

28 47 70 b65 82 23

29 44 72 *1359 76 31 41 75 b68 22 46 26 886 34 37 78 b80 -

- so 

31 40 19 76 - 894 21

, Second- Runoff in

foot-days Month Maximum Minimum Mean acre-feet 

October 1,142 48 17 36.8 2,270 

November 2,221 106 42 74.0 4,410 

December 2,913 124 69 94.0 5,780 

Calendar year 1941 45,127.3 1,130 0 124 89,520 -

January 2,274 80 59 73.4 4,510 February 2,621 134 74 90.4 5,200 March 1,601 76 19 51.6 3,180 April 16,339 1,060 4 545 32,410 May 1,501 149 23 48.4 2,980 June 12,941 5,000 24 431 25,670 July 8,487.8 982 7;8 274 16,840 August 9,231.7 1,420 8.7 298 18,310 September 802 39 5.0 26.7 1,590 

Water year 1947-48 62,074.5 5,000 4 170 123,200 . . Peak discharge (base, 1,500 sec.-ft.).- June 3 (time unknown) 8,120 sec.-ft.; Aug. 2 p.m. 

2,260 sec.-Ft.; jug. 5 (1 p.m.) 1,600 sec.-ft. 

•Winter discharge measurement made on this day. a No gage-height record; discharge computed on basis of available recorder trace, recorded range 

in stage, discharge measurements made on Apr. 27, June 4, weather records, and records for station 

near Artesia. b Stage-discharge relation affected by Ice. 
		- - - - - 

324 RIO GRANDE BASIN 

Pecos River near Artesia, N. Mex. 

Location.- Water-stage recorder, lat. 32°50.05", long. 104°19.25", In WiNW sec. 18, T. 17 

S., R. 27 E., at bridge on Artesia-Lovington highway, 4.3 miles east of Artesia, 7.0 

miles north of mouth of Rio Penasco, and 17 miles north of McMillan Dam. 

Drainage area.- 15,300 square miles (contributing area). 

Records available.- March 1905 to September 1925, October 1931 to February 1936 (published 

as Pecos Xiver near Dayton), and February 1936 to September 1948 in reports of Geological Survey. March 1905 to December 1931 in reports of State engineer. 

Average discharge.- 12 years (1936-48), 442 second-feet. 

Extremes.- Maximum discharge during year, 4,210 second-feet June 3 (gage height, 11.80 

feet); minimum daily, 4.0 second-feet Sept. 4. 

1905-48: Maximum gage height, 15.9 feet Sept 18, 1919, site and datum then in use 

(discharge not determined). Flood of May 30, 1937, reached a gage height cf 14.7 feet 

(discharge, 51.500 second-feet, by slope-area method); no flow Aug. 17-24, 1934, Aug. 

14-25, 1946, Aug. 1-22, 1947. 

Remarks.- Records good except those above 500 second-feet. which are fair, and those for 

periods of ice effect or no gage-height record, which are poor. Diversions above station for irrigation. Flow partly regulated by Alamogordo Reservoir (see p. 241). 

Discharge represents inflow to Lake McMillan, which stores water for irrigation of 

about 25,000 acres of Carlsbad project. Records of chemical analyses for the water 

year 1948 are given in Water-Supply Paper 1133. 

Discharge, In second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

raV.1 22222 22MT -04; 1 F =g2iMpi HM FaM 'ff,F. ,::M" g"'''' '4) Y-)"" 0 .+ 1 t0 NO/ N00

=4:;?

,7A=2 ;e-WMg22F7 1 

b98 73 26 185 364 31 840 12 97 71 28 140 2,910 26 810 7.5 97 71 15 118 3,230 25 1,540 5.7 

1 11 

2 14

3 14

4 12 95 72 9.6 88 3,070 27 1,040 4.0

5 14 118 76 7.0 73 1,460 41 1,180 4.5

.121 88 11 67 605 74 1,140 8.9 141 88 4.1 55 366 99 742 13 131 78 4.1 45 273 80 460 7.8 125 74 251 48 206 55 228 8.9 .136 78 800 55 183 47 158 22 

124 80 940 44 170 71 113 24 95 82 960 39 165 71 76 21 .1,85 80 960 44 155 55 47 27 b100 70 1,180 40 144 29 29 24 100 65 1,040 37 136 16 24 21 

94 64 980 41 109 13 34 27 .94 57 940 49 99 7.0 170 30 89 54 920 42 94 4.3 218 30 92 49 900 35 91 4.7 121 27 89 49 880 28 88 4.7 74 29 

85 44 880 26 88 4.5 45 29 88 44 880 19 78 4.5 31 24 86 39 880 22 70 103 24 20 81 36 613 32 59 893 21 18 78 35 342 27 50 960 17 13 

79 33 330 27 54 900 12 13 

6 19

7 20

8 22

9 25

10 27

11 29

12 32

13 37

14 46

15 47

16 44

17 40

18 38

19 37

20 38

21 37

22 38

23 37

24 37

25 40

26 43

27 44 85 25 293 31 51 920 6.7 15 28 44 82 21 308 28 46 920 6.2 18 29 45 78 25 295 22 34 840 11 22 30 42 - 24 286 28 29 840 9.2 28 31 40 21 - 733 - 880 18 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet

October 1,013 47 11 32.7 2,010 November 2,216 106 39 73.9 4,400 December 3,068 132 74 99.0 6,090 

Calendar year 1947 45,698.6 1,120 0 125 90,640 . _ -".-- January 2,502 100 61 80.7 4,960 February 2,863 141 78 98.7 5,680 March 1,766 88 21 57.0 3,500 April 15,962.8 1,180 4.1 532 31,660 May 2,268 733 19 73.2 4,500 June 14,477 3,230 29 483 28,710 July 8,045.7 960 4.3 260 15,960 August 9,245.1 1,540 6.2 298 18,340 September 554.3 30 4.0 18.5 1,100 

Water year 1947-48 63,980.9 3,230 4.0 175 126,900 

Peak dischargebase, 1 200 sec.-ft. .- June 3 (11:30 p.m.)4,210 sec.-ft.; Aug. 3 (2:30 a.m.) 1,870 sec.-ft.; Aug. 6(730 p.m.) 1,4 0 sec.-ft. * Winter discharge measurement made on this day. 

a No gage-height record; discharge computed on basis of available recorder trace, weather records, and records for main stem stations above. b Stage-discharge relation affected by ice. 
		

325 

RIO GRANDE BASIN 

Pecos River below McMillan Dam, N. Mex. 

Location.- Water-stage recorder, lat. 32°35'30", long. 104°21'00", in NE-, sec. 11, 

T. 20 S., R. 26 E., 700 feet downstream from gages in McMillan Dam and 3 miles southeast from Lakewood. 

Drainage area.- 16,900 square miles (contributing area). 

Records available.- August 1939 to December 1940, December 1946 to September 1948. 

Extremes.- Maximum discharge during year, 720 second-feet Apr. 20 (gage height, 3.75 

reet); no flow at times. 

1939-40, 1946-48: Maximum discharge, that of Apr. 20, 1948; no flow during many 

periods. 

Remarks.- Records excellent. Flow regulated by Alamogordo Reservoir and Lake McMillan 

see p. 241. Many diversions above station for irrigation. Discharge represents 

water released from Lake McMillan for irrigation on Carlsbad project. 

Rating table, water year 1947-48 (gage height, in feet, and discharge, in second-feet) 

0.36 0 0.7 4.8 1.2 41 2.4 250 

.4 .2 .8 8.7 1.4 65 2.8 373 

.5 .9 .9 14 1.7 110 3.3 545 

.6 2.4 1.0 22 2.0 161 3.7 700 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

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 

ir;Hcn) EM

ERE

M0.00.00000 

( 'w:t 2n 0000.ON MW .1=8

8w"

"

MM O.

.0000 0000000000000000000

0000 0 

N 

0 . 

N

0 

0 

0 

0 

0 

0 

3 

0 

55 

228 

225 

202 

145 

140 

138 

138 

136 

131 

99 

99 

99 

97 

97 

96 

96 

96 

96 

97 

97 

99 

99 

0000051E8

U. 

1 . ,o..1.0o 0 00000 oo 0 oog:i: 8,7 -.00 

ww ;,); 

Month Second- Maximum Minimum Runoff in mean foot-days acre-feet

October 0 0 0 0 0 

November 0 0 0 0 0 

December 0 0 0 0 0 

_ -

Calendar year 1947 12,423.6 550 0 34.0 24,640 

January 0 0 0 0 0 

February 0 0 0 0 0 

March 0 0 0 0 0 

April 8,114 700 0 270 16,090 

May 2,415.7 223 0 77.9 4,790 

June .4 .2 0 .01 .8 

July 2,805 228 0 30.5 5,560 

August 3,363 183 0 108 6,670 

September 1,501 379 0 50.0 2,980 

Water year 1947-48 18,199.1 700 0 49.7 36,090 
- - - - - - - - 		- 

326 RIO GRANDE BASIN 

Pecos River below Major Johnson Springs, near Carlsbad, N. Mex. 

Location.- Water-stage recorder, lat. 32'331 15", long. 104°23,05", in SEt sec. 21, T. ., R. 26 E., about It miles downstream from upper end of Major Johnson Springs, 

1 miles downstream from mouth of Seven Rivers and 15 miles northwest of Carlsbad. 

Records available.- January 1947 to September 1948. 

Extremes.- Maximum discharge during year, 3,500 second-feet June 1 (gage height, 4.79 

feet), from rating curve extended above 630 second-feet on basis of logarithmic 

plotting; minimum daily, 11 second-feet Oct. 2, 3. 

1947-48: Maximum discharge, that of June 1, 1948; minimum daily, that of Oct. 2, 3, 1947. 

Remarks.- Records good except those for periods of no gage-height record, which are 

fair. Flow regulated by Alamogordo Reservoir and Lake McMillan (see p.241). Many 

diversions above station for irrigation. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

13,Sn13f3 M373(8c8t2S,S 2), T.(4.(f Vt=tr,

1 all 15 18 '

t7t7 2,T4 c1=3 .. Mt! 

78 66 161 733 226 156 2 11 15 18 78 60 166 383 231 156 3 all 15 19 78 57 170 60 236 417 4 all 14 19 5 a13 14 19 75 54 180 46 236 489 72 54 236 60 231 475 

6 a13 15 19 72 51 242 72 236 437 7 a13 15 20 72 48 210 84 242 224 8 all 15 22 75 46 180 97 242 122 78 44 180 111 248 114 81 40 180 122 253 108 

78 163 180 130 253 100 78 454 185 138 258 94 78 524 190 148 258 84 78 620 190 148 258 81 78 652 190 152 258 75 

75 676 195 161 293 72 75 700 195 166 329 69 75 708 205 170 329 63 75 724 349 175 323 63 75 606 323 175 293 60 

9 all 15 23 10 13 15 24 

11 13 15 24 12 14 15 26 13 14 14 27 14 14 14 28 15 13 15 30 

16 13 15 30 17 13 15 30 18 14 15 32 19 14 15 34 20 14 15 34 

21 14 15 36 22 14 15 38 23 14 15 40 24 14 16 40 25 14 16 42 

26 14 16 42 27 14 17 44 28 15 17 44 29 15 18 46 30 15 18 46 31 15 - 46 

75 252 163 175 287 60 72 84 94 180 287 57 72 78 78 180 287 51 66 236 75 180 281 48 66 405 69 190 258 46 

69 391 66 190 248 42 69 287 57 190 226 42 69 293 48 190 210 40 69 287 44 185 185 40 66 220 42 185 161 38 66 - 85 161 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 416 15 11 13.4 825 November 459 18 14 15.3 910 

December 960 46 18 31.0 1,900 

Calendar year 1947 41,331 522 11 113 81,970 

January 1,742 60 46 56.2 3,460 

February 1,989 84 60 68.6 3,950 

March 2,283 81 66 73.6 4,530 

April 8,880 724 40 296 17,610 

May 4,928 349 42 159 9,770 

June 5,176 733 46 173 10,270 

July 7,698 391 185 248 15,270 

August 7,824 329 161 252 15,520 

September 3,923 489 38 131 7,780 

Water year 1947-48 46,278 733 11 126 91,800 

a No gage-height record; discharge computed on basis of discharge measurement made on Oct. 2, weather records, and records for station at dam site 
						

			

						

						 		

RIO GRANDE BASIN 327 

Pecos River at dam site 3, near Carlsbad, N. Rex. 

Location.- Water-stage recorder, lat. 32°30'45", long. 104°19'50", in lot 14, sec 6, T. 

21 S., R. 26 E., at dam site 3 of Carlsbad project of Bureau of Reclamation, about 1 

mile upstream from flow line of Lake Avalon, 1.3 miles downstream from Rocky Arroyo, 

and 8 miles northwest of Carlsbad. Datum of gage is 3,172.31 feet above mean sea level 

(Bureau of Reclamation datum). 

Drainage area.- 17,620 square miles (contributing area). 

Records available.- August 1939 to December 1940, August 1944 to September 1948. 

Extremes.- Maximum discharge during year, 18,200 second-feet May 31 (gage height, 12.3 

feet), from rating curve extended above 2,200 second-feet on basis of ilogarithmic 

plotting; minimum daily, 16 second-feet Oct. 11. 

1939-40, 1944-48: Maximum discharge, that of May 31, 1948; minimum daily, 16 

second-feet;June 18-21, 1946, Oct. 11, 1947. 

Remarks.- Records good except those above 400 second-feet, which are fair, and those 

---TUF-Teriods of ice effect or no gage-height record, which are poor. Flow regulated 

by Alamogordo Reservoir and Lake McMillan (see p.241). Many diversicns above station 

for irrigation. Discharge represents inflow to Lake Avalon. 

Rating table, water year 1947-48, except period of ice effect (gage height, in feet, and discharge in second-feet) (Shifting-control method used Apr. 11 to May 20, May 31 to July 10, Sept. 3_7, 26-30) 

0.0 12 0.4 51 1.2 236 2.5 915 .1 18 .6 83 1.4 315 3.0 1,280 .2 27 .8 123 1.7 455 3.5 1,710 .3 38 1.0 172 2.0 605 4.1 2,340 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 2,92 2`,?, 22 ,7;,7,4 -,;;(7.; g1222

.c%) :41'="c2 cTs 

24 52 64 85 68 202 2,320 190 251 175 24 52 66 89 66 196 1,650 193 251 169 26 54 66 87 62 199 a140 193 255 294 24 54 69 89 57 199 055 193 255 465 24 52 69 87 56 274 63 199 259 465 

17 2 17 3 17 4 17 5 17 

6 18 25 56 68 83 52 278 78 429 259 450 7 18 25 56 69 85 50 247 94 209 263 433 8 17 26 56 69 85 48 193 108 205 266 154 9 17 27 57 71 83 46 190 121 205 274 137 10 17 29 57 71 83 41 190 134 405 274 130 

11 16 30 58 73 81 118 187 144 415 274 119 12 17 32 58 73 81 436 187 154 415 278 108 13 17 34 60 73 81 560 190 162 338 282 100 14 18 15 17 35 60 73 80 644 193 169 338 282 92 36 62 74 80 678 193 175 338 282 85 

16 17 38 62 74 81 702 196 181 333 315 81 17 17 38 62 74 81 720 202 184 328 374 76 18 17 39 62 76 80 732 202 190 328 374 73 19 18 41 62 78 78 744 351 190 290 374 68 20 18 42 62 80 78 686 346 190 278 338 64

21 18 43 62 81 76 303 226 190 274 338 62 22 17 44 62 83 76 113 128 193 270 333 58 23 17 46 62 85 78 85 110 193 278 333 56 24 18 47 62 87 76 198 98 193 866 328 52 25 18 48 62 87 74 450 92 196 255 311 51

26 19 48 62 87 74 460 1,530 193 255 282 47 27 20 50 62 85 74 346 129 193 251 266 47 28 

29 

30 

31 

20 

20 

20 

20 

48 

50 

51 

b52 

62 

63 

63 

64 

87 

87 

-

73 

71 

66 

68 

346 

346 

274 

-

62 

142 

54 1,840 

193 

193 

190 

251 

251 

251 

251 

236 

222 

181 

175 

44 

44 

43 

-

Month Secondfoot-days Maximum Minimum Mean Runoff in 

acre-feet 

October 

November 

December 

551 

647 1,146 

20 

24 

52 

16 

19 

24 

17.8. 

21.6 

37.0 

1,090 

1,280 

2,270 

Calendar year 1947 - 42,925 _ - 525 16 118 85,140 

January 

February 

March 

April 

May 

June 

July 

August 

September 

1,840 

2,199 

2,463 

9,487 

8,826 

8,429 

8,675 

8,785 

4,242 

64 

87 

89 

744 

1,840 

2,320 

429 

374 

465 

52 

64 

66 

41 

54 

55 

190 

175 

43 

59.4 

75.8 

79.5 

316 

285 

281 

280 

283 

141 

3,650 

4,360 

4,890 

18,820 

17,510 

16,720 

17,210 

17,420 

8,410 

Water year 1947-48 57,290 2,320 16 157 113,600 

I, 1 /nn ...... rt. 5 _ Yea, so (A.1, n m 1 7 5g0 sec.-Pt.; May 31 (10:30 p.m.) 

18,233 sec.- . a No gage-height record; discharge computed on basis of weather records and records for station 

below Major Johnson Springs. b Stage-discharge relation affected by Ice. 

905771 0 - 50 - 22 
- 		- 

328 RIO GRANDE BASIN 

Pecos River at Carlsbad, N. Mex. 

Location.- Water-stage recorder, lat. 32°24.50", long. 104°13,20", in NW4SE4 sec. 6, T. 

Y? S., R 27 E., at Green Street Bridge in Carlsbad and half a mile upstream from 

Dark Canyon. Datum of gage is 3,080.38 feet above mean sea level, datum of 1929. 

Drainage area.- 18,100 square miles (contributing area). 

Records available.- May 1903 to March 1908, May 1914 to September 1925, October 1928 to 

September iV3U, and October 1931 to September 1948 in reports of Geological Survey. 

June 1903 to December 1906, May 1914 to December 1928, and January 1930 to December 

1931 in reports of State engineer. 

Average discharge.- 23 years (1914-37), 304 second-feet (prior to completion of Alamogordo 

Dam); it years (1937-48) 302 second-feet. 

Extremes.- Maximum discharge during year, 17,800 second-feet June 2 (gage height, 11.28 

reet); minimum daily, 31 second-feet Feb. 14. 

11903-8, 1914-48: Maximum discharge, 85,700 second-feet Aug. 7, 1916 (gage height, 

about 21.0 feet), from rating curve extended above 34,000 second-feet by logarithmic 

plotting; no flow May 9, 1904. 

Remarks.- Records good. Flow regulated by Alamogordo Reservoir, Lake McMillan, Lake 

Avalon, and at low stages by power plant above station. Many diversions above station 

for irrigation. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 51 54 46 37 46 48 50 53 5,490 64 64 59 2 51 54 46 44 44 48 48 48 5,530 67 67 56 3 51 56 48 42 44 48 48 56 86 62 64 59 4 46 54 46 46 46 48 48 50 70 59 64 56 5 45 52 45 44 48 46 59 56 67 67 62 44 

6 49 56 45 44 44 46 56 56 67 64 62 62 7 49 54 45 42 48 46 53 56 64 64 62 53 8 49 54 45 44 42 46 56 56 64 64 62 53 9 51 56 45 46 46 48 59 50 67 62 59 50 10 48 57 45 42 44 59 59 59 67 64 59 50 

11 46 54 45 46 48 42 53 53 233 62 56 48 12 46 54 49 50 SO 44 59 53 178 62 56 50 13 46 59 48 46 44 46 56 56 168 62 59 50 14 52 59 42 44 31 48 56 56 163 59 59 50 15 49 51 44 44 35 48 59 59 163 62. 56 48 

16 48 51 45 44 42 48 56 59 158 59 64 50 17 51 57 44 42 42 48 56 64 168 62 59 56 18 49 57 44 42 44 53 53 62 178 59 59 50 19 46 52 44 44 44 46 56 59 199 64 59 44 20 56 45 42 44 44 48 56 59 258 62 56 53 

21 52 51 42 44 46 50 56 62 183 62 59 53 22 52 51 46 46 46 50 59 64 62 62 50 48 23 52 49 45 44 46 48 56 62 56 62 62 50 24 52 52 44 48 50 48 59 67 59 62 59 50 25 54 54 42 42 50 48 56 64 62 59 59 46 

26 52 56 44 46 48 53 59 64 62 67 59 53 27 54 48 44 46 48 44 56 64 59 64 59 53 28 54 46 44 48 48 48 53 62 62 64 59 53 29 54 42 44 42 42 50 56 64 67 62 53 53 30 54 44 42 40 - 56 53 59 64 123 62 50 31 54 45 44 59 720 79 56 

Second- Runoff in foot-days acre-feet Month Maximum Minimum Mean 

October 1,563 56 45 50.4 3,100 November 1,579 59 42 52.6 3,130 December 1,385 49 42 44.7 2,750 _ 

Calendar year 1947 27,502 247 42 75.3 54,560 

January 1,367 50 37 44.1 2,710 February 1,300 50 31 44.8 2,580 March 1,508 59 42 48.6 2,990 April 1,659 59 48 55.3 3,290 May 2,472 720 48 79.7 4,900 June 14,174 5,530 56 472 28,110 July 2,016 123 59 65.0 4,000 August 1,845 67 50 59.5 3,660 September 1,550 62 44 51.7 3,070 

Water year 1947-48 32,418 5,530 31 88.6 64,290 
- - - - - 

RIC GRANDE BASIN 329 

Pecos River near Malaga, N. Mex. 

Location.- Water-stage recorder, lat. 32°12.30", long. 104°01.30", in N14NWI sec. 19, T. 

24 S., R. 29 E., 3 miles southeast of Malaga and 3 miles downstream from Black River. 

Datum of gage is 2,898.68 feet above mean sea level, datum of 1929. 

Drainage area.- 19,190 square miles (contributing area). 

Records available.- May 1920 to September 1925 and October 1931 to September 1948 in 

reports of Geological Survey. January 1921 to December 1931 in reports of State 

engineer. 

Average discharge.- 17 years (1920-37), 299 (revised) second-feet (prior to completion 

or Alamogordo Reservoir). 11 years (1937-48), 378 second-feet. 

Extremes'.- Maximum discharge during year, 18,900 second-feet June 2 (gage height, 16.10 

Feet); minimum daily, 15 second-feet Apr. 10-12. 

1920-48: Maximum discharge, 63,700 second-feet Sept. 21, 1941, from rating curve 

extended above 22,500 second-feet by logarithmic plotting; maximum gage height, 32.1 

feet from May 22, 1941, floodmark; no flow Aug. 20-22, 1934. 

Remarks.- Records good except those for periods of no gage-height record, which are poor. 

Flow regulated by Alamordo Reservoir, Lake McMillan, Lake Avalon, and by several small 

diversion dams that divert for power and irrigation. Many diversions above station 

for irrigation. Records of chemical analyses for the water year 1948 are given in 

Water-Supply Paper 1133. 

Cooperation.- Gage-height record collected in cooperation with Bureau of Reclamation. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 39 60 75 84 78 68 22 56 7,280 a90 102 46 

2 39 55 64 86 78 78 20 55 8,950 a90 75 41 

3 40 53 64 80 78 76 17 56 817 a90 62 42 

4 40 56 69 78 80 76 17 55 a240 a85 57 40 

5 38 61 86 78 84 78 20 80 165 a85 s50 41 

6 38 60 82 78 87 78 20 100 152 88 a45 41 

7 33 68 80 80 82 78 20 88 144 88 a40 36 

8 28 69 80 78 90 81 17 78 131 a80 a40 47 

9 . 27 68 80 80 93 78 16 78 121 62 a35 45 

10 26 67 81 78 87 82 15 71 116 61 a35 48 

11 25 69 81 80 93 84 15 64 123 60 a35 47 

12 25 74 82 78 90 88 15 76 227 59 a35 47 

13 25 80 81 76 92 80 16 80 192 51 a35 42 

14 31 86 82 78 95 74 16 86 178 51 a35 39 

15 25 92 81 76 92 75 16 84 174 55 a35 37 

16 25 81 80 80 88 75 16 84 163 55 a35 38 

17 30 78 76 78 88 74 16 81 161 48 a40 39 

18 31 81 75 76 92 68 17 78 167 a46 a35 37 

19 32 86 75 78 90 68 16 75 174 a44 a35 39 

20 34 86 75 78 88 48 17 76 196 a46 34 40 

21 35 80 75 87 88 39 24 75 222 a45 37 69 

22 37 74 78 92 88 37 26 45 174 a44 71 54 

23 49 75 78 93 90 33 20 38 105 54 72 49 

24 49 75 80 95 88 32 25 41 107 60 80 44 

25 48 78 80 93 88 25 44 183 112 60 78 42 

26 48 81 81 95 84 23 32 821 114 87 75 41 

27 48 86 80 95 78 23 26 114 92 78 80 40 

28 49 82 78 . 93 87 22 38 71 a90 55 81 49 

29 54 80 78 93 82 22 57 60 890 51 87 54 

30 54 80 76 90 - 22 57 57 a90 50 84 54 

31 54 - 82 82 - 22 564 - 114 76 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 1,156 54 25 37.3 2,290 

November' 2,221 92 53 74.0 4,410 

December 2,415 86 64 77.9 4,790 

-

Calendar year 184: 34,055 294 21 93.3 67,550 

January 2,586 95 76 83.4 5,130 

February 2,518 95 78 86.8 4,990 

March 1,807 88 22 58.3 3,580 

April 693 57 15 23.1 1,3/0 

May 3,570 821 38 115 7,080 

June 21,067 8,950 90 702 41,790 

July 2,032 114 44 65.5 4,030 

August 1,716 102 34 55.4 3,400 

September 1,328 69 36 44.3 2,630 

Water year 1947-48 43,109 8,950 15 118 85,490 

Peak discharge (base, 1,000 sec.-ft.).- May 26 (12:15 a.m.) 2,780 sec.-ft.; June 2 (12 m.) 18,900 sec.-ft. a No gage-height record; discharge computed on basis of weather records and records for station at Carlsbad. 
		

330 RIO GRANDE BASIN 

Pecos River at Red Bluff, N. Mex. 

Location.- Water-stage recorder, lat. 32°04.40", long. 104°02.20", at Red Bluff, Eddy 

county, just downstream from Red Bluff Creek and 5} miles upstream from Delaware River. 

Datum of gage Is 2,850.0 feet above mean sea level, datum of 1929. 

Drainage area.- 19,540 square miles (contributing area). 

Records available.- October 1937 to September 1948. May 1914 to September 1937 at site 

b miles downstream near Angeles, Tex.; records comparable to combined flow of Pecos 

River at Red Bluff and Delaware River near Red Bluff. 

Average discharge.- 11 years, 384 second-feet. 

Extremes.- Maximum discharge during year. 13,100 second-feet June 2 (gage height, 14.31 

feet); minimum, 21 second-feet Apr. 11-13 (gage height, 2.75 feet). 

1937-48: Maximum discharge, 52,600 second-feet May 24, 1941 (gage height, 28.3 

feet), by slope-area method; minimum, 14 second-feet Aug. 19, 1946. 

Maximum stage known prior to 1941, 28.0 feet in October 1904, from information by 

Panhandle & Santa Fe Railway. 

Remarks.- Records excellent. Flow regulated to large extent by reservoirs above Carlsbad. 

-Many diversions above station for irrigation. Records of chemical analyses for the 

water year 1948 are given in Water-Supply Paper 1133. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 51 53 86 86 89 79 27 55 6,800 82 135 84 2 50 59 82 87 86 77 36 55 7,110 72 96 60 3 51 56 82 87 86 82 35 58 4,470 63 76 50 4 52 53 82 82 87 80 33 56 422 63 62 50 5 53 56 86 80 96 77 31 55 247 76 55 46 

6 55 58 89 76 93 80 36 69 193 82 47 45 7 53 58 87 82 95 77 33 86 174 104 44 45 8 46 60 86 82 89 79 36 76 161 100 60 38 9 42 62 86 82 95 80 29 74 142 91 44 50 10 44 62 86 82 98 74 25 77 133 74 46 51 

11 46 62 86 82 96 79 24 65 131 74 41 52 12 45 63 86 82 96 80 23 58 182 72 44 53 13 45 68 86 80 95 82 24 68 230 74 59 53 14 45 80 87 82 96 69 25 72 211 65 45 48 15 52 86 87 84 100 69 25 84 196 63 48 45 

16 41 86 84 82 98 68 24 82 188 65 62 44 17 36 79 84 82 95 65 25 82 177 74 56 42 18 46 84 82 84 93 63 28 80 174 62 47 45 19 52 82 82 82 93 63 30 79 193 51 46 44 20 53 84 82 82 89 62 27 79 196 47 42 47 

21 53 80 80 84 89 58 25 80 243 48 40 51 22 53 76 80 93 91 48 26 80 240 52 44 71 23 52 77 82 96 91 47 34 65 161 52 79 52 24 58 79 82 98 93 39 29 59 122 58 82 45 25 59 79 84 96 91 36 29 77 127 63 89 44 

26 50 80 82 98 89 35 45 768 142 68 87 52 27 53 86 84 96 86 29 42 305 129 95 84 52 28 53 87 82 95 84 29 33 124 118 86 86 44 29 56 87 82 98 89 34 31 96 96 62 103 50 30 65 86 79 100 - 31 48 82 82 55 96 62 31 63 - 80 93 - 27 332 - 53 91 -

Month Second- Runoff in Maximum Minimum Olean foot-daye acre-feet 

October 1,573 65 36 50.7 3,120 November 2,168 87 53 72.3 4,300 December 2,595 89 79 83.7 5,150 

Calendar year 1947 35,787 310 17 

- 98.0 70,990 

January 2,695 100 76 86.9 5,350 February 2,668 100 84 92.0 5,290 March 1,898 82 27 61.2 3,760 April 918 48 23 30.6 1,820 May 3,478 768 55 112 6,900 June 23,190 7,110 82 773 46,000 July 2,146 104 47 69.2 4,260 August 2,026 135 40 65.4 4,020 September 1,515 84 38 50.5 3.000 

Water year 1947-48 46,870 7,110 23 128 92,370 
		- - 

331 RIO GRANDE BASIN 

Pecos River near Orla, Tex. 

Location.- Water-stage recorder, lat. 31°49', long. 103°48', 600 feet upstream from Pasotex pipe-line crossing, 6 miles southeast of Orla, Reeves County, 11 miles downstream 

from Salt (Screwbean) Draw, and 14 miles downstream from Red Bluff Dam. Datum of gage 

Is 2,718.0 feet above mean sea level, datum of 1929. 

Drainage area.- 21,300 square miles (contributing area). 

Records available.- May 1937 to September 1948. 

Average discharge.- 11 years, 395 second-feet. 

Extremes.- Maximum discharge during year, 1,320 second-feet June 1 (gage height, 3.69 

reet); minimum, 0.4 second-foot Oct. 24-26. 

1937-48: Maximum discharge, 23,700 second-feet Sept. 29, 1941 (gage height, 20.74 

feet); no flow Sept. 9-14, Nov. 4, 1946. 

Remarks.- Records excellent. Flow regulated by Red Bluff Reservoir (see p. 241). Occa-

---ETZEgl runoff from draws between dam and station. Many diversions above station for 

irrigation. Records of chemical analyses for the water year 1948 are given In WaterSupply Paper 1133. 

Revision (water year).- W 928: 1937. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 24 0.6 2.9 8.7 4.0 7.4 5.9 186 336 296 62 54 2 4.9 .6 2.9 a8.3 4.0 6.9 6.4 155 38 307 44 6.9 3 2.9 15 3.2 a7.8 3.2 6.9 6.4 317 25 356 41 4.4 4 2.4 61 3.6 a7.3 3.2 7.4 6.9 347 36 356 54 3.6 5 1 8 63 3.2 6.9 4.0 7.4 6.4 336 347 356 140 2.9 

6 1.4 46 2.9 6.9 4.0 7.4 6.4 186 351 360 316 2.9 7 1.2 5.4 3.2 6.4 3.6 7.4 8.0 96 466 351 269 2.6 8 1.1 2.2 2.9 3.6 3.6 7.4 8.0 110 531 347 215 7.1 9 1.0 1.8 2.9 3.6 3.2 7.4 58 110 546 356 164 136 10 .9 1.6 2.9 3.2 3.2 7.4 266 110 610 399 162 59 

11 .9 1.6 2.9 3.6 3.2 6.9 364 110 610 254 206 13 12 .8 1.5 3.2 6.9 2.9 6.9 411 110 686 421 441 8.7 13 .7 1.5 3.2 6.9 3.2 6.4 441 105 802 421 491 6.4 14 .6 2.0 3.6 6.9 3.6 6.4 456 54 648 416 374 5.9 15 .6 2.2 4.0 6.9 3.2 6.4 506 53 • 638 411 346 4.9 

16 .6 2.0 4.4 6.9 2.9 5.4 557 51 626 401 220 3.6 17 .6 2.4 4.4 6.9 2.9 5.9 610 51 626 228 196 3.2 18 .5 3.6 4.4 7.4 2.9 5.9 604 32 707 143 193 2.9 19 .5 5.4 4.4 7.4 2.9 6.4 599 25 798 132 170 2.9 20 .6 5.4 4.9 7.4 2.6 5.9 594 26 512 109 122 2.6 

21 .6 5.4 12 7.4 2.6 6.4 562 26 599 155 128 2.9 22 .6 5.4 8.0 7.4 2.6 5.9 541 28 666 150 128 29 23 .6 5.4 8.0 7.4 2.9 5.9 511 62 616 159 110 6.9 24 .5 5.4 8.0 8.0 2.9 6.4 521 33 610 96 69 4.0 25 .4 4.9 8.0 7.4 2.9 6.9 531 59 594 51 58 2.9 

26 .4 4.0 8.0 8.0 3.2 6.4 526 111 633 35 58 2.6 27 .6 3.2 8.0 6.9 4.0 6.4 452 35 501 45 45 2.9 28 .8 2.9 7.4 4.0 5.4 6.4 329 33 496 40 112 3.2 29 .9 2.9 7.4 3.2 6.9 6.9 36 33 371 42 57 3.2 30 1.0 2.9 7.4 4.0 - 6.9 57 35 296 81 40 2.2 31 .8 8.7 4.0 6.4 - 43 - 63 16 

Second- Runoff in Month • Maximum Minimum Mean foot-days acre-feet 

October 55.2 24 0.4 1.78 109 November 267.2 63 .6 8.91 530 December 160.9 12 2.9 5.19 319 

Calendar year 1947 44,977:7 557 .4 123 89,200 

January 197.6 8.7 3.2 6.37 392 February 99.7 6.9 2.6 3.44 198 March 206.4 7.4 5.4 6.66 409 April 9,586.4 610 5.9 320 19,010 May 3,068 347 25 99.0 6,090 June 15,321 802 25 511 30,390 July 7,337 421 35 237 14,550 August 5,047 491 16 163 10,010 September 393.3 136 2.2 13.1 780 

Water year 1947-48 41,739.7 802 .4 114 82,790 • a No gaga-height record; discharge interpolated. 
				

		

332 RIO GRANDE BASIN 

Pecos River at Pecos, Tex. 

Location.- Water-stage recorder, lat. 31°26', long. 103°28', at bridge on U. S. Highway 

130, 135 feet downstream from Texas & Pacific Railway bridge, 1.7 miles east of Pecos, 

Reeves County, and 11 miles upstream from Toyah Creek. Datum of gage is 2,552.0 feet 

above mean sea level, datum of 1929. 

Drainage area.- 22,100 square miles (contributing area). 

Records available.- August 1939 to September 1948. January 1898 to June 1907 at flume 

or Barstow Irrigation Co. (old Marguerretta Canal Co.), b.4 miles upstream, published 

as Pecos River near Pecos. April 1914 to August 1915 at site 7 miles downstream, 

published as Pecos River near Barstow. March 1922 to July 1926 at site about 10 miles 

upstream, published as Pecos River above Barstow. 

Extremes.- Maximum discharge during year, 560 second-feet Sept. 10 (gage height, 7.33 

feet); minimum daily, 1.2 second-feet Feb. 29. 

1898-1907, 1914-15, 1922-26, 1939-48: Maximum gage height, about 20 feet present 

datum, at railroad bridge above gage, Oct. 5, 1904 (discharge not determined); flood 

of Sept. 30, 1941, reacned a stage of 19.68 feet, present datum, at site then in use 

(discharge, 22,200 second-feet); minimum daily discharge 1939-48, that of Feb. 29, 

1948. 

Flood of August 1893 reached approximately the same stage as that of Oct. 5, 1904, 

from information by local residents. 

Remarks.- Records good except those for period of no gage-height record, which are poor. 

Flow regulated to large extent by reservoirs above Orla. Several diversions between 

Orla and this station for irrigation. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. N N A A A . ,momm .... ..... NNNN j;O N M 6OO N N ,,,NNN ., NmQ1

NM 

1 5.7 6.2 6.7 6.2 9.0 5.7 37 76 220 12 15

2 5.7 6.2 6.7 6.2 1.6 6.2 25 270 190 8.0 15 3 5.7 6.7 6.2 6.2 7.3 6.2 62 28 178 0.2 13 4 5.7 7.2 5.7 6.2 6.7 5.7 86 18 226 5.2 14 6.7 5.7 6.2 6.2 5.7 202 14 184 5.0 10 

6.7 5.7 6.2 6.2 5.7 220 54 256 7.2 7.2 

5 5.2

6 5.7 7 6.2 6.7 5.7 6.2 6.2 5.2 149 148 256 22 5.2 8 5.2 6.2 6.2 6.2 5.7 5.2 72 196 244 67 4.8 9 5.2 6.2 6.2 6.2 5.7 5.2 37 214 202 60 72 10 5.2 6.2 6.2 6.2 5.7 5.7 32 208 190 39 308 • 11 6.2 6.2 6.2 6.2 5.7 5.2 32 250 226 17 22 12 5.2 6.2 6.2 6.2 5.7 115 32 250 152 13 13 13 4.8 6.7 6.2 6.2 5.7 256 31 277 133 79 11 14 4.8 6.7 6.2 6.7 5.7 304 30 384 110 196 8.8 15 4.8 6.7 6.2 6.7 5.2 298 27 322 88 149 7.2

16 4.8 6.7 6.7 6.7 5.2 262 18 298 74 128 6.7 17 4.8 6.7 6.2 6.7 5.2 292 12 286 60 64 5.7 18 4.8 6.7 6.2 6.7 5.2 334 10 274 52 33 19 5.2 5.2 6.7 5.7 6.7 5.2 346 8.8 314 44 22 4.8 20 5.2 6.7 6.2 6.2 5.7 346 .7.7 449 40 17 4.4

21 5.2 6.7 6.2 6.2 5.2 346 7.2 326 80 13 5.2 22 4.8 7.2 5.7 6.2 5.2 346 6.2 397 62 11 6.2 23 4.8 7.2 6.2 5.7 5.7 334 6.2 436 48 9.4 5.7 4.8 7.2 6.2 5.7 5.7 292 4.4 462 38 8.2 5.2 7.2 6.2 5.7 5.7 304 4.4 449 28 7.2 4.8 24 

25 4.8

26 4.8 7.2 6.2 6.2 5.7 346 4.4 449 21 5.7 4.8 27 5.2 6.2 6.2 5.7 5.2 346 4.4 476 18 6.2 4.8 28 5.7 6.2 6.2 2.0 5.2 322 9.4 436 16 5.7 4.8 29 5.'7 6.2 6.7 1.2 5.2 256 11 397 15 7.7 4.8 30 4.4 6.2 6.7 5.2 118 4.8 334 18 11 4.4 31 4.0 6.7 6.2 - 5.2 - 5.7 18 9.4 

Month Secondfoot-days Maximum Minimum Mean Runoff in 

acre-feet 

October 

November 

December 

160.3 

172.8 

205.2 

6.2 

8.2 

7.2 -

4.0 

4.0 

6.2 

5.17 

5.76 

6.62 

318 

343 

407 

Calendar year 1947 26,196.7 -

436 4.0 71.8 51,970 

January 

February 

March 

April 

May 

June 

July 

August 

September 

• 191.7 

171.6 

174 5,624.7 

1,198.6 

8,492 

3,487 

1,044.1 603.7 

6.7 

6.7 

9.0 346 

220 

476 

256 

196 

308 

5.7 

1.2 

1.6 

5.2 

4.4 

14 

15 

5.0 

4.4 

6.18 

5.92 

5.61 187 

38.7 

283 

112 

33.7 

20.1 

380 

340 

345 11,160 

2,380 

16,840 

6,920 

2,070 

1,200 

Water year 1947-48 21,525.7 476 1.2 58.8 42,700 

Note.- No gage- height record July 14 to Aug. 5; discharge computed on basis of records for station 

neTF-UFla and diversions between the two stations. 
333 

RIO GRANDE BASIN 

Pecos River below Grandfalls, Tex. 

Location.- Water-stage recorder, lat. 31°18', long. 102°46', at bridge on State Farm to 

Market Road 11 between Grandfalls and Imperial, 7.1 miles southeast of Grandfalls, 

Ward County, and 10 miles downstream from Chacatori Draw. Datum of gage is 2,373.0 

feet above mean sea level, datum of 1929 (levels by Corps of Engineers). 

Drairage area.- 27,820 square miles (contributing area). 

Records available.- August 1939 to September 1948. December 1921 to July 1926 at site 

about 12 miles downstream, published as Pecos River near Buena Vista. 

Extremes.- Maximum discharge during year, 50 second-feet Sept. 12 (gage height, 2.87 

feet); minimum daily, 12 second-feet Nov. 8-30. 

1921-26, 1939-48: Maximum discharge, 22,000 second-feet Oct. 2, 1941 (gage height, 

20.98 feet); minimum daily, 8.0 second-feet July 27, 1925. 

Remarks.- Records good. Flow regulated to large extent by reservoirs above Orla. Many 

diversions between Orla and this station for irrigation. Records of chemical analyses 

for the water year 1948 are given in Water-Supply Paper 1133. 

Discharge, in second-feet, water year October 1947 to September1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 

2 

3 

4 

5 

14 

14 

14 

14 

15 

14 

14 

14 

14 

14 

14 

29 

33 

34 

33 

30 

30 

30 

30 

30 

21 

21 

21 

21 

21 

22 

21 

21 

20 

20 

1/ 

16 

16 

16 

17 

18 

18 

18 

18 

18 

16 

16 

16 

23 

18 

19 

20 

21 

21 

22 

16 

16 

16 

16 

15 

16 

15 

15 

15 

15 

6 

7 

8 

9 

10 

16 

15 

15 

15 

15 

13 

13 

12 

12 

12 

33 

33 

33 

33 

31 

30 

30 

30 

29 

27 

21 

21 

21 

21 

21 

20 

20 

20 

21 

21 

18 

18 

18 

19 

19 

17 

16 

16 

16 

16 

15 

14 

14 

14 

14 

22 

22 

23 

23 

24 

15 

15 

14 

14 

15 

15 

14 

14 

16 

22 

11 

12 

13 

14 

15 

15 

15 

15 

15 

15 

12 

12 

12 

12 

12 

31 

31 

31 

32 

32 

26 

26 

23 

23 

22 

21 

21 

21 

20 

20 

21 

21 

21 

21 

21 

19 

18 

18 

18 

18 

15 

15 

14 

15 

15 

14 

14 

14 

14 

14 

22 

28 

35 

30 

28 

14 

15 

15 

15 

15 

23 

33 

34 

23 

21 

16 

17 

18 

19 

20 

15 

15 

15 

15 

15 

12 

12 

12 

12 

12 

33 

33 

33 

33 

33 

22 

22 

22 

21 

22 

20 

20 

20 

20 

20 

21 

21 

19 

19 

19 

17 

17 

37 

37 

24 

15 

15 

15 

15 

15 

16 

17 

19 

19 

20 

26 

23 

20 

18 

18 

14 

15 

15 

15 

15 

20 

19 

19 

18 

18 

21 

22 

23 

24 

25 

15 

15 

14 

14 

14 

12 

12 

12 

12 

12 

32 

32 

32 

32 

32 

22 

22 

22 

22 

21 

20 

20 

20 

20 

20 

19 

19 

19 

19 

18 

21 

22 

24 

22 

20 

15 

15 

15 

15 

15 

21 

20 

20 

20 

24 

18 

18 

21 

27 

22 

15 

15 

15 

15 

15 

18 

17 

17 

16 

16 

26 

27 

28 

29 

30 

31 

14 

14 

15 

15 

15 

14 

12 

12 

12 

12 

12 

31 

31 

31 

31 

30 

31 

21 

21 

21 

21 

21 

21 

21 

21 

21 

21 

-

18 

18 

18 

18 

16 

16 

21 

21 

20 

20 

20 

15 

16 

16 

16 

16 

16 

20 

20 

19 

18 

19 

21 

19 

18 

18 

17 

16 

15 

15 

15 

16 

16 

16 

15 

14 

14 

13 

13 

-

Month Secondfoot-days Maximum Minimum Mean Runoff in 

acre-feet 

October 

November 

December 

456 

372 

973 

16 

14 

34 

14 

12 

14 

14.7 

12.4 

31.4 

904 

738 1,930 

Calendar year 1947 9,886 445 12 27.1 19,610 

January 

February 

March 

April 

May 

June 

July 

August 

September 

7i0 — 597 

608 

608 

490 

522 

680 

468 

538 

30 

21 

22 

37 

18 

24 

35 

16 

34 

21 

20 

16 

16 

14 

14 

16 

14 

13 

24.5 

20.6 

19.6 

20.3 

15.8 

17.4 

21.9 

15.1 

17.9 

1,510 

1,180 

1,210 

1,210 972 1,040 

1,350 928 1,070 

Water year 1947-48 7,072 37 12 19.3 14,040 
		- - - 

334 RIO GRANDE BASIN 

Pecos River near Girvin. Tex. 

Location.- Water-stage recorder, let. 31°05', long. 102°22', at bridge on U. S. Highway 

bY, about half a mile downstream from Panhandle & Santa Fe Railway bridge, 2.1 miles 

east of Girvin, Pecos County, and 6f miles downstream from Comanche Creek. Datum 

of gage is 2,269.7 feet above mean sea level, datum of 1929. 

Drainage area.- 29,560 square miles (contributing area). 

Records available.- August 1939 to September 1948. 

Extremes.- Maximum discharge during year, 259 second-feet May 25 (gage height, 2.59 

reel); minimum daily, 20 second-feet Oct. 17, 18, 20, 23, Nov. 8. 

1939-48: Maximum discharge, 20,000 second-feet Oct. 5, 1941 (gage height, 20.49 

feet); minimum daily, that of Oct. 17, 18, 20, 23, Nov. 8, 1947. 

Flood of September 1932 reached a stage of 17 feet, from information by local 

residents. 

Remarks.- Records good except those for period of no gage-height record, which are 

poor. Flow regulated to large extent by reservoirs above Orla. Many diversions 

above station for irrigation. Some water from drain and two wasteways returns to 

river between station below Grandfalls and this station. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 26 2 25 3 25 4 25 5 25 

6 24 7 25 8 24 9 25 10 25 

L1 2888= 22='3 22=

38 52 36 37 36 33 31 29 37 21 44 53 37 37 37 32 30 29 43 21 45 53 37 38 38 31 29 30 42 21 56 53 37 57 54 37 36 36 30 28 31 

36 36 31 28 30 g40 21 38 21 

53 54 37 37 33 30 29 31 36 21 50 54 37 37 32 30 29 31 33 21 

49 53 36 38 34 29 37 32 29 

50 54 36 38 33 30 39 31 31 g21 

48 53 36 38 36 29 32 32 28 g68 

30 

11 24 50 56 33 36 36 29 28 32 27 21 12 24 49 53 33 36 34 29 27 32 26 24 13 23 48 49 33 37 36 29 26 33 26 23 14 22 48 45 33 37 36 28 28 33 25 26 15 23 

16 22 17 20 18 20 19 21 20 20 

21 21 22 21 23 20 24 21 25 21 

47 42 33 36 36 28 28 55 25 36 

48 42 33 33 36 28 37 49 24 42 48 42 33 34 36 28 30 43 24 34 50 42 34 33 36 28 27 37 24 30 52 42 34 33 36 26 25 34 23 29 48 45 34 33 36 26 23 33 23 30 

50 42 33 32 52 26 25 32 23 28 49 4? 33 33 53 26 27 32 23 28 50 40 37 34 44 26 24 32 23 28 49 39 36 34 38 28 23 32 22 25 50 38 34 36 38 66 24 32 22 25 

26 22 50 38 37 33 38 82 28 32 22 25 27 21 50 37 38 34 37 32 32 40 22 22 28 21 50 36 40 34 34 32 31 39 22 22 29 22 50 36 40 34 36 32 30 37 22 22 30 32 52 37 34 36 31 29 36 22 21 31 22 50 37 - 34 - 32 - 35 21 

Second- Runoff in Month Maximum Minimum Moan foot-days acre-feet 

October 702 26 20 22.6 November 800 34 20 26.7 December 1,528 57 38 49.3 

Calendar year 1947 16,565 421 20 45.4 

January 1,413 56 36 45.6 February 1,027 40 33 35.4 March 1,092 38 32 35.2 April 1,115 53 32 37.2 May 997 82 26 32.2 June 864 39 23 28.8 July 1,066 55 29 34.4 August 848 43 21 27.4 September 807 68 21 26.9 

Water year 1947-48 12,259 82 20 33.5 

g51,9 2:89-22g2228 co I°10-Ics av- -1'9.w. 

24,310 

g Computed from graph based on gage readings.

Note.- No gage-height record June 23 to Aug. 3, Aug. 5 to Sept. 7; discharge computed on basis of wereFEFF records and records for stations below Orandfalls and near Sheffield. 
		

335 RIO GRANDE BASIN 

Pecos River near Sheffield, Tex. 

Location.- Water-stage recorder, lat. 30°39', long. 101°45', at bridge on U. S. Highway 

290, 3f miles southeast of Sheffield, Pecos County, and 4 miles upstream from Liveoak Creek. Datum of gage is 2,026.3 feet above mean sea level, datum of 1929. 

Drainage area.- 31,660 square miles (contributing area). 

Records available.- October 1921 to April 1925, October 1939 to September 1948. 

Average discharge.- 10 years (1922-24, 1940-48), 290 second-feet. 

Extremes.- Maximum discharge during year, 1,450 second-feet Feb. 26; maximum gage height, 

5.37 feet Sept. 22; minimum discharge not determined, probably occurred during period 

of no gage-height record. 

1921-25, 1939-48: Maximum discharge, 13,800 second-feet Oct. 8, 1941 (gage height, 

16.75 feet); minimum, 15 second-feet Aug. 15, 1923. 

Maximum stage known, about 23.5 feet in September 1916, site and datum in use prior 

to May 1, 1925, from information by local residents. 

Remarks.- Records fair. Flow regulated to large extent by reservoirs above Orla. Many 

diversions between Orla and this station for irrigation. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 36 46 53 71 69 58 52 62 79 81 57 50 2 36 46 54 72 69 58 52 61 78 80 59 57 3 36 47 62 72 69 58 51 61 74 83 54 50 4 37 47 60 72 69 57 51 61 73 94 51 48 5 37 47 59 74 69 57 g51 62 74 93 50 46 

6 

7 37 

37 47 47 60 

63 74 

74 69 

69 57 57 g52 

53 62 63 73 

72 107 

100 50 49 43 42 8 37 48 68 76 69 57 53 63 70 91 45 40 9 37 49 64 77 68 56 53 63 70 74 44 40 10 37 49 64 77 67 56 53 64 70 73 45 42 

11 37 50 61 78 66 56 54 267 73 71 44 45 12 37 50 61 78 65 56 54 294 79 68 43 51 13 37 51 61 77 65 56 54 78 83 66 42 49 14 38 51 61 78 65 55 54 66 83 64 42 44 15 38 54 62 77 65 55 54 63 81 64 42 43 

16 38 54 62 72 65 55 54 61 87 64 42 42 17 38 59 63 72 65 55 55 62 82 63 42 41 18 38 58 64 70 65 55 55 64 73 61 42 41 19 39 56 64 69 66 54 55 64 73 59 41 46 20 40 56 65 70 66 54 56 66 76 59 40 44 

21 40 56 68 71 65 54 57 67 82 59 40 42 22 41 54 68 71 65 54 58 70 82 58 39 270 23 42 54 67 71 64 54 61 71 82 58 39 52 24 44 54 68 72 64 53 63 76 83 58 40 46 25 44 55 68 72 68 53 71 85 80 57 39 42 

26 44 54 68 71 331 53 66 234 93 55 39 42 27 45 54 69 70 187 53 64 221 102 54 40 42 28 46 54 69 69 66 53 63 167 91 54 40 39 29 47 53 70 69 59 52 62 116 83 56 41 38 30 47 53 71 69 52 62 93 83 48 43 38 31 47 - 72 68 52 - 82 48 42 

Month Secondfoot-days Maximum Minimum Mean Runoff in 

acre-feet 

October 

November 

December 

• 1,234 

1,553 

1,989 

47 

59 

72 

36 

46 

53 

39.8 

51.8 

64.2 

2,450 

3,080 

3,950 

Calendar year 1947 24,651 1,040 26 67.5 48,910 

January 

February 

March 

April 

2,253 

2,309 

1,705 

1,693 

78 

331 

58 

71 

68 

59 

52 

51 

72.7 

79.6 

55.0 

56.4 

4,470 

4,580 

3,380 

3,360 May

June 

July 

August 

September 

2,989 

2,384 

2,120 

1,366 

1,555 

294 

102 

107 

59 

270 

61 

70 

48 

39 

38 

96.4 

79.5 

68.4 

44.1 

51.8 

5,930 

4,730 

4,200 

2,710 

3,080 

Water year 1947-48 23,150 331 36 63.3 45,920 

g Computed from graph based on gage readings. 

Note.- No gage-height record Oct. 1-15, Mar. 3 to Apr. 4; discharge computed on basis of records foFFFitions below Orandfalls and near Oirvin. 
336 RIO GRANDE BASIN 

Galilnas River near Montezuma, N. Mex. 

Location.- Water-stage recorder, lat. 35°39'00", long. 105°19'10", in Las Vegas Grant, 2 

miles west of Montezuma, San Miguel County, and 6 miles northwest of Las Vegas. 

Drainage area.- 84 square miles. 

Records available.- October 1930 to September 1948 in reports of Geological Survey. March 

1915 to December 1931 (no winter records 1915-26) in reports of State engineer. 

Average discharge.- 22 years (1926-48), 21.0 second-feet. 

Extremes.- Maximum discharge during year, 470 second-feet June 2 (gage height, 3.30 feet); 

minimum daily, 2.1 second-feet Sept. 23, 24. 

1930-48: Maximum discharge, 3,310 second-feet Sept. 23, 1941 (gage height, 7.78 

feet), from rating curve extended above 350 second-feet by logarithmic plotting; minimum 

daily, 0.8 second-foot Aug. 15-18, 21, 25, 26, 30, 1934, Jan. 20, 1938. 

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are poor. Diversions above station for irrigation. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. 

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 

NWW.. NNNmN NNNNN WOOO NNOWWOO O

NNOW mmA WN ANAAP &OM., 

Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

2.9 3.2 b3.5 b3.5 12 21 60 35 8.8 4.6 3.4 2.9 3.2 b3.5 b3.5 11 23 54 67 8.5 4.6 3.4 2.9 3.5 b3.5 b3.5 13 26 53 a45 8.5 4.3 3.5 2.9 3.2 b3.5 b3.5 b10 31 46 a42 8.2 10 3.2 2.9 3.7 b3.5 b3.5 bll 36 41 a40 7.9 48 2.7 

2.9 .3.4 b3.5 b3.5 bll 38 40 39 10 10 2.5 2.9 b3 b3.5 b3.5 11 38 41 34 8.8 6.9 2.5 2.7 3.2 b3.5 b3.5 9.6 38 46 41 8.2 6.2 2.6 3.0 3.2 .b3.5 b3.5 9.6 40 43 36 7.4 5.3 6.5 2.7 3.5 b3.5 b3 b10 47 41 33 7.1 4.8 5.1 

2.6 3.2 b3.5 b3 bll 65 41 31 6.6 4.6 2.4 2.9 b3 3.7 b3 13 61 39 31 6.0 5.3 2.6 2.9 b3 3.7 b3 12 49 34 32 5.0 5.5 3.0 2.9 b3 4.1 b3 15 45 32 30 4.4 16 2.6 2.9 b3.5 4.4 b3 16 49 34 26 4.3 9.3 2.6 

3.0 b3.5 3.9 b3.5 16 56 41 23 4.3 7.1 2.5 2.9 b3.5 3.9 b4 15 62 43 21 4.1 6.0 2.5 2.7 b3.5 b3.5 b4.5 16 70 46 20 5.0 6.0 2.5 3.0 b3.5 b3.5 b5 18 74 49 33 6.6 5.5 2.5 3.0 b3.5 b3.5 *5.7 20 71 50 a35 5..3 5.0 2.4 

3.4 b3.5 b3.5 5.7 20 73 49 a25 4.6 7.1 2.4 3.0 b3.5 b3.5 6.6 17 74 47 a20 5.3 9.1 2.2 3.5 b3.5 b3.5 6.6 20 71 44 a18 6.6 6.4 2.1 3.4 b3 b3 6.9 26 61 48 16 5.5 5.5 2.1 3.2 b3 b3 6.9 .31 53 53 14 5.3 5.5 2.2 

3.4 b3 b3 10 28 43 52 12 5.0 5.3 2.7 3.7 b3.5 b3 13 24 44 47 11 5.5 4.6 2.6 3.9 b3.5 b3 12 24 44 44 11 5.3 3.9 2.5 3.7 b3.5 b3 12 27 53 40 9.3 4.8 3.7 2.6 3.4 b3.5 b3 28 60 36 9.6 4.3 3.7 2.6 b3.5 b3 - 25 - 34 5.7 3.5 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 94.9 6.6 2.2 3.06 168 November 92.1 3.9 2.6 3.07 183 December 103.3 3.7 3 3.33 205 _ 

Calendar year 1947 3,111.6 93 .9 8.52 6,170 

January 107.2 4.4 3 3.46 213 February 151.9 13 3 5.24 301 March 530.2 31 9.6 17.1 1,050 April 1,516 74 21 50.5 3,010 May 1,368 60 32 44.1 2,710 June 839.9 67 9.3 28.0 1,670 July 192.9 10 4.1 6.22 383 August 233.3 48 3.5 7.53 463 September 85.0 6.5 2.1 2.83 169 

Water year1947-48 5,314.7 74 2.1 14.5 10,540 

Peak dischargebasej 150 sec.-ft.).- June 2 (8 p.m.) 470 sec.-ft.; June 19 (9 p.m.)252 sec.-ft.; Aug. 5 (4:30 a.m.)176 sec.-ft. •Winter discharge measurement made on this day. a No gage-height record; discharge computed on basis of available recorder trace, observer's notes, weather records, and records for station at Montezuma. b Stage-discharge relation affected by ice. 
337 RIO GRANDE BASIN 

Gallinas River at Montezuma, N. Mex. 

Location.- Water-stage recorder, lat. 35°39'15", long. 105°16'30", in Las Vegas Grant, at 

highway bridge half a mile downstream from Montezuma, San Miguel County, and 5 miles 

northwest of Las Vegas. 

Drainage area.- 87 square miles. 

Records available.- August 1973 to December 1914 (prior to October 1904, gage heights only) 

and October 1930 to September 1948 in reports of Geological Survey. October 1904 to 

December 1931 in reports of State engineer (prior to 1930, published as Gallinas River 

near Las Vegas). 

Average discharge.- 41 years (1905-11, 1913-48), 21.3 second-feet. 

Extremes.- Maximum discharge during year, 696 second-feet June 2 (gage height, 5.50 feet, 

from high-water mark in gage well); minimum daily, 0.5 second-foot on many days. 

1930-48: Maximum discharge, 2,590 second-feet Sept. 23, 1941 (gage height, 6.23 

feet), from rating curve extended above 1,000 second-feet by logarithmic plotting; no 

flow Oct. 4-7, 1934. 

A very destructive flood, probably the greatest known, occurred Sept. 29-30, 1904. 

Remarks.- Records good except those for period of no gage-height record, which are poor. 

now regulated by reservoirs owned by Public Service Co. of New Mexico. Several 

diversions above station for irrigation and municipal water supply. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 0.5 0.8 0.8 1.4 1.2 12 19 60 36 4.9 1.0 0.5 

2 .6 .8 1.0 1.4 1.2 7.5 11 60 al00 3.4 2.0 .5 

3 .7 .5 1.0 1.4 1.2 8.9 20 56 a50 2.5 2.7 .5 

4 .6 .5 1.0 1.4 1.4 7.1 28 55 a40 2.0 1.8 .5 

5 .6 .7 1.0 1.4 1.8 5.3 32 38 a35 1.4 87 .5 

6 .7 1.0 1.0 1.2 1.6 6.7 34 25 h32 2.6 13 .5 

7 .7 1.0 .7 1.2 1.6 7.1 33 34 a30 17 4.6 .6 

.8 1.0 .8 1.2 1.6 7.1 32 37 a34 9.4 2.2 .6 8 

9 .8 .8 .8 1.2 1.4 7.1 30 44 a32 2.2 1.8 .7 

10 .8 .8 .8 1.2 1.4 6.7 36 28 a31 1.0 1.8 2.7 

11 .7 .8 1.0 1.2 1.8 6.3 64 40 30 1.0 2.0 1.1 

12 .8 1.0 1.0 1.2 1.4 6.7 58 21 39 1.0 2.0 .6 

13 1.1 .8 1.1 1.2 1.6 8.9 46 29 33 1.0 2.0 .5 

14 .8 .6 1.2 1.1 1.6 12 39 28 28 .8 8.0 .5 

15 .7 .7 1.2 1.1 1.8 14 39 30 21 1.0 9.9 .5 

16 .6 .7 1.4 1.1 1.8 13 46 37 15 1.0 4.6 .5 

17 .7 .7 1.4 1.1 1.8 13 51 41 13 1.0 2.5 .5 

18 .8 .6 1.6 1.1 2.0 13 58 42 14 2.0 2.0 .5 

19 .8 .7 1.6 1.2 1.8 14 71 44 26 3.2 2.0 .5 

20 .8 .8 1.6 1.1 5.2 17 68 47 46 1.0 • 1.8 .5 

21 1.0 .8 1.6 1.1 4.9 18 67 47 22 2.0 2.5 .5 

22 .8 .7 1.2 1.1 4.9 14 71 44 16 2.0 7.5 .5 

23 .8 .8 .6 1.2 7.1 16 67 41 11 2.0 3.7 .5 

24 .7 .7 .7 1.2 8.4 19 59 50 8.4 1..8 1.6 .5

25 .7 1.2 1.2 7.9 25 55 53 7.5 2.0 .8 .5 

26 .7 .6 1.4 1.4 alO 25 53 51 7.1 3.2 .7 .6 

27 .7 .6 1.2 1.4 10 21 44 41 6.3 3.2 .7 .5 

28 .6 .7 1.1 1.2 12 30 45 42 6.0 3.2 .6 .5 

29 .6 .8 1.2 1.2 11 27 48 40 6.0 2.2 .6 .5 

30 .6 1.0 1.6 1.2 - 25 55 37 4.9 1.6 .6 .5 

31 .6 1.6 1.2 - 26 - 36 - 1.0 .6 

• Second- Runoff in Month foot-days acre-feet Maximum Minimum Mean 

October 22.4 1.1 0.5 0./2 44 

November 22.7 1.0 .5 .76 45 December 35.4 1.6 .6 1.14 70 

Calendar year 1947 1,953.8 115 .2 5.35 3,880 

January 37.8 1.4 1.1 1.22 75 

February 111.4 12 1.2 3.84 221 

March 439.4 30 5.3 14.2 872 

April 1,379 71 11 46.0 2,740 

May 1,278 60 21 41.2 2,530 June 780.2 100 4.9 26.0 1,550 July 83.6 17 .8 2.70 166 

August 174.6 87 .6 5.63 346 September 18.4 2.7 .5 .61 36 

Water year 1947-48 4,382.9 100 .5 12.0 8,700 

• Peak discharge (base, 100 sec.-ft.).- June 2 (8:30 p.m.)696 sec -ft.; June 19 (10:30 p.m. 170 

sec.-ft.; July (12;30 p.m.) 116 sec.-ft.; Aug. 5 (1 a.m.) 454 sec.-ft. a No gage-height record; discharge computed on basis of recorded range In stage, weather records, 

and records for station near Montezuma. h Computed from staff-gage reading. 
33R RIO GRANDE BASIN 

Rio Ruidoso at Hondo, N. Mex. 

Location.- Water-stage recorder, lat. 33°23'00", long. 105°16'30", in NaSWi sec. 4, T. 11 

S., H. 17 E., a quarter of a mile upstream from confluence with Rio Bonito and half a 

mile southwest of Hondo. 

Drainage area.- 307 square miles. 

Records available.- October 1930 to September 1948 in reports of Geological Survey. August 

1930 to December 1931 in reports of State engineer. 

Average discharge.- 18 years (1930-48), 22.7 second-feet. 

Extremes.- Maximum discharge during year, 2,940 second-feet June 1 (gage height, 9.73 

feet), from rating curve extended above 35 second-feet by logarithmic plotting; minimum 

daily, 0.1 second-foot Dec. 5-7. 

1930-48: Maximum discharge, 12,400 second-feet Sept. 29, 1941 (gage height, 21.13 

feet, from floodmark), from rating curve extended above 130 second-feet on basis of 

velocity-area studies; no flow Aug. 15, 16, 1935. 

Remarks.- Records good except those above 100 second-feet, which are fair, and those for 

periods of no gage-height record, which are poor. Diversions above station for irriga- tion. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 0.4 0.4 3.8 4.6 2.7 10 18 4.5 321 0.6 a2.5 0.4 2 .4 .4 3.0 4.2 2.7 10 17 1.5 a100 .5 1.7 .4 3 .4 .4 3.8 4.2 2.7 10 7.4 1.3 h51 .5 1.5 .4 4 .4 .4 1.5 3.8 2.7 11 7.4 1.3 a25 a.5 1.9 .5 5 .4 .4 .1 4.2 3.4 5.9 5.6 1.1 a15 a.6 73 .5 

6 .4 .5 .1 3.4 2.7 .8 5.6 .8 a8 .7 a30 .5 7 .4 .5 .1 3.4 3.0 .8 .8.0 .7 a6 20 al° .6 8 .4 .6 .2 3.4 3.0 1.0 4.2 .6 a60 2.8 a6.0 .6 9 .5 .5 .2 2.4 2.7 2.2 7.4 .5 42 .4 a2.0 .7 10 .6 .5 .2 1.7 2.4 4.2 2.7 .5 21 .4 a2.5 .7 

11 .6 .5 .3 1.5 3.8 6.2 16 .5 31 2.7 3.4 .7 12 .6 .4 1.5 2.7 3.8 6.8 13 .5 51 a2.0 18 .7 13 9.1 .5 2.2 3.0 4.6 8.0 13 .5 37 al.0 17 .8 14 3.9 .4 1.1 1.9 4.2 5.6 2.4 .5 25 a.6 16 .8 15 .3 .4 .3 1.1 8.0 5.6 .5 .5 18 al.2 15 .8 

16 .3 .3 .3 1.5 8.0 9.3 a.5 .5 15 h.5 20 .8 17 .3 .4 .2 1.9 7.4 10 a.6 .5 14 a2.0 15 9.0 18 .3 1.0 .3 2.2 6.8 14 a.8 .5 9.3 a5.0 8 1.0 19 .3 3.0 .2 2.7 6.8 17 1.0 .7 6.2 a4.0 11 .8 20 .4 4.2 .2 2.7 6.8 16 3.4 .7 5.6 alO 10 .7 

21 .4 5.6 .2 2.7 6.8 17 8.0 1.0 4.6 a6.0 3.8 .7 22 .4 5.1 .2 1.7 6.2 8.6 10 1.1 2.2 a20 3.0 .7 23 .5 5.6 .2 1.7 6.2 2.2 11 1.1 .6 a70 3.0 .6 24 .6 5.1 .2 1.9 6.2 1.7 12 26 .6 a15 2.2 .7 25 .5 5.6 .2 2.4 6.8 .6 20 24 .4 a5 3.0 9.3 

26 .5 12 2.1 2.7 7.4 1.1 17 14 .4 al° 2.6 5.1 27 .5 19 3.8 2.7 7.4 1.5 11 12 .4 a25 a.6 1.0 28 .4 27 3.8 2.7 7.4 1.9 5.0 8.6 .5 al0 a.6 .9 29 .4 11 4.2 2.7 8.0 5.6 1.7 3.0 .5 a7 a.5 .8 30 .4 3.8 4.2 2.7 - 18 9.8 4.2 .5 a5 5.4 .8 31 .4 - 5.1 2.7 - 11 - 39 - a3.5 .4 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 25.4 9.1 0.3 0.82 50 November 108.5 20 .3 3.62 215 December 43.8 5.1 .1 1.41 87 

Calendar year 1947 921.6 20 .1 2.52 1,830 

January 83.1 4.6 1.1 2.68 165 February 150.6 8.0 2.4 5.19 299 March 223.6 18 .6 7.21 444 April 240.0 20 .5 8.00 476 May 152.2 39 .5 4.91 302 June 871.8 321 .4 29.1 1,730 July 232.5 70 .4 7.50 461 August 284.6 73 .4 9.18 564 September • 42.0 9.3 .4 1.40 83 

Water year1947-48 2,458.1 321 .1 6.72 4,880 Peak dischargebase, 200 sec.-ft.).-May 24 (6:45 p.m.)318 sec -ft.; June 1 (1 a.m.) 955 sec.-

ft.; June 1 (7:30 p.m.) 2,940 sec.-f .; June 2 (10:45 p m.) 332 sec.-ft.; July 7 (8:20 p m.) 290

sec.-ft.; Aug. 5 (1 p.m.) 1,160 sec.-ft. 

a No gage-height record; discharge computed on basis of available trace, weather records, engi- neer's notes, and records for Rio Bonito at Hondo and Rio Hondo at Diamond A Ranch. 

h Computed from staff-gage readings. 
RIO GRANDE BASIN 

Rio Hondo at Diamond A Ranch, near Roswell, N. Mex. 

Location.- Water-stage recorder, lat. 33°20'40", long. 104°51'10", in NE.1 sec. 2j, 7. 11 

S., H. 21 E., at Diamond A Ranch, 8 miles upstream from Rocky Arroyo and 18 miles west 

of Roswell. 

Drainage area.- 960 square miles (contributing area). 

Records available.- May 1939 to September 1948 in reports of Geological Survey. May 1908 

(corrected) to August 1909 in reports of State engineer. 

Extremes.- Maximum discharge during year, 7,960 second-feet June 3 (gage height, 26.10 

feet); no flow at times. 

1939-48: Maximum discharge, 27,000 second-feet Sept. 22, 1941 (gage height, 28.78 

feet), by slope-area method; no flow at times. 

Remarks.- Records fair except those for periods of ice effect or no gage-height record 

and those above 1,000 second-feet, which are poor. Diversions above station for 

irrigation. 

Discharge, in second-feet, water year October 1947 to September1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

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 

m g; 000000 00000 OOO 00

00000

t0, 0000 O01 

Oo,tOgo 00000 00000 00000 00000

810 

15 

18 

16 

14 

14 

14 

14 

14 

15 

•15 

15 

b12 

b12 

b13 

a12 

.12 

12 

12 

12 

12 

11 

11 

11 

11 

•11 

11 

11 

10 

11 

11 

4a

. 

0000 000 00000 :g. 0 0 00, WWW 88O OOOr 

wo m.o 

(" 

N-.1 40 00000 

00000 000000000000000 . . 

..•.,MNN, ' 

.. m0',1 2. t ON ;/.0 

1000 00 VO

=" 2=2888O 

' =g 0000

00001 ::.

o- 0(C(0 00000

W 

0, 0 

=vg%28g,;oo 00000 000000 r N .

00000 0000000000 00000 00000 g;;;2,1!...1, 

5.8 

5.0 

4.2 

5.3 

5.0 

2.6 

0 

0 

r cr-(9 .).11-!1 00000 --

-000000NN 00000 

0 

0 

0 

0 

0 

0 

0 

0 0 0 0 

0 

1.3 

5.8 

10 

6.3 

3.4 

2.3 

2.3 

1.8 

3.2 

2,2 

1.9 

1.4 

.4 

0 

0 

0 

0 

0 

0 

0 

0 

.2 

.1 

0 

0 

0 

0 

0 

0 

0 

0 

0 

.4 

.3 

.2 

0 

0 

0 

0 

-

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

884.8 857 0 28.5 1,750 

November 

October. . 22 50 .73 44 

December 392 18 10 12.6 778 

Calendar year 1947 3,773.0 -

857 0 - 10.3 7,480 

January 143.3 16 0 4.62 284 

February 70.2 10 0 2.42 139 

March 

-

19.1 2.1 0 .62 38 

April 1.2 .4 0 .04 2.4 

May 187.6 153 0 6.05 372 

June 5.323.7 2,270 0 177 10,560 

July 447.5 109 0 14.4 888 

August 1,600.4 837 0 51.6 3,170 

September 266 184 0 8.87 528 

9,357.8 2,270 0 25.6 18,550 Water year 1947-48 

Peak dischae (base, 600 sec.-ft.).- Oct 14 (2 a.m. 6,040 sec -ft.; May 28 (6 a.m. 701 sec.-

ft.; June 1 (9730 a.m.) 4,170 sec.-ft.; June 2 (3:40 a.m.) 6,880 sec.-ft.; June 3 (6:45 a.m.) 7,960 sec.-ft.; Aug. 2 (6:10 a.m.) 6,600 sec.-ft.. Sept. 26 (2:15 a.m.) 701 sec.-ft. 

•Winter discharge measurement made on this day. a No gage-height record; discharge computed on basis of available recorder trace, weather records, engineers' field notes, and records for Rio Ruidoso at Hondo and Rio Bonito at Hondo. 

b Stage-discharge relation affected by ice. 

h Computed from staff-gage reading. 

• 
340 RIO GRANDE BASIN 

Rio Bonito at Hondo, N. Mex. 

Location.- Water-stage recorder and concrete control, lat. 33°23'20", long. 105°16,30", 

in NEINWII sec. 4, T. 11 S., R. 17 E., at Hondo, half a mile upstream from confluence 

with Rio Ruidoso. 

Drainage area.- 306 square miles (contributing area). 

Records available.- October 1930 to September 1948 in reports of Geological Survey. 

August 1930 to December 1931 in reports of State engineer. 

Average discharge.- 18 years (1930-48), 11.7 second-feet. 

Extremes.- Maximum discharge during year, 8,390 second-feet June 1 (gage height, 17.83 

feet), from rating curve extended above 220 second-feet on basis of slope-area determination at gage height 19.0 feet; no flow at times. •

1930-48: Maximum discharge, 11,000 second-feet Sept. 28 or 29, 1941 (gage height, 

20.92 feet, from floodmark), from rating curve extended above 220 second-feet on basis 

of slope-area determination at gage height 19.0 feet; no flow at times. 

Remarks.- Records fair except those for periods of doubtful or no gage-height record and 

those above 10 second-feet, which are poor. Diversions above station for irrigation. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. . Jan. Feb. Mar. Apr. May June July Aug. Sept. 

"!'". 

000 00000 0000 00000 000000 

ocy!!9 

NN PONN N. 

000000 00000 

1 10000 00000 0000. r 000000 00000 

N 

0 

0 

0 

.1 

.1 

.1 

0 

0 

0 

0 

0 

.1 

.1 

•a 

.1 

.1 

.1 

0 .1 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

9 '1' -;°: 

0000000000 0000000000 0000,1.0 02.(v2 

719 0 3.7 0 

a60 0 6.1 0 

201 0 13 0 

5.2 0 18 0 

.11"1'!. 

00000 00000 00N. MINMM

N

M

M

M

N

HMNIO NM,N . 

2.9 

2.9 

2.9 

3.1 

3.3 

3.5 

3.1 

2.9 

1.5 

.9 

.7 

.7 1.2 

4.5 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

2.7 0 23 0

2.4 0 4.5 0

2.0 25 al 0 

16 1 a0 0 

6.4 a0 al 0 

7.2 a0 18 0 

6.44 26 0 16 a0 13 0 

5.2 a0 2.5 0

4.8 a.2 40 0

4.8 .3 182 0 

4.5 .2 5.7 0 

4.0 .2 .4 0 

3.1 4.3 a0 0 3.3 3.3 a0 0 

3.1 2.5 a0 0 

2.5 5.3 a0 11 2.4 2.8 0 .5 2.2 1.8 0 .4 1.8 44 0 .4 1.6 19 0 234 

1.9 3.3 0 a.4 

1.9 25 0 a0 .6 6.8 0 0 0 4.8 0 0 

15 4.5 

4.5 

4.5 

4.5 

4.0 

4.0 

4.0 

4.0 

4.0 

4.0 

4.0 

4.0 

4.0 

4.0 

3.7 

3.7 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

0 2.7 0 0

1.5 0 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 1 I I i I I 0.000000 o: o: 0 0 14 I . 

1.88 116 3.32 197 1.68 103 

October 58.3 4.5 

November 99.5 4.5 

December 52.1 4.2

Calendar year 1947 518.7 68 1.42 1,030 - January 2.4 .5 .08 2.8 1.1 .10 5.6 .03 

0 0 

1.48 91 36.4 2,170 

February 

March 1.0 .1

April 0 0

May 45.8 26

June 1,092.0 719

July 158.0 44 5.10 313

August 357.9 182 11.5 710

September 246.7 234 8.22 489

Water year 1947-48 2,116.5 719 0 5.78 4,200 

Peak discharge (base, 1000 sec.-ft.).- June 1 (12:30 a.m.) 8,390 sec.-ft.; June 1 (7:30 p.m.) 1,920 sec.-ft.; June 3 (12:05 a.m.) 1,300 sec.-ft.; Aug 15 (5 p.m ) 2,280 sec.-ft.; Sept. 25 (4 p.m.) 3,100 sec.-ft. a No gage-height record; discharge computed on basis of available trace, engineer's and observer's notes, and records for nearby stations. 

4.8 

2.0 
341 

RIO GRANDE BASIN 

Rio Felix at old highway bridge, near Hagerman, N. Mex. 

Location.- Water-stage recorder, lat. 33807'30", long. 104820.40", in SICI- sec. 4, T, 14 

S., H. 26 E., on downstream side of bridge, miles northwest of Hagerman and 21 

miles upstream from mouth. 

Drainage area.- 932 square miles (contributing area). 

Records available.- April 1939 to September 1948. March 1932 to April 1939 at site 

mile downstream. Records for periods of low flow not equivalent. 

Extremes.- Maximum discharge during year, 11,400 second-feet June 2 (gage heIght, 17.3 

rest, from floodmarks); minimum daily, 0.2 second-foot on many days. 

1939-48: Maximum discharge, 20,000 second-feet Sept. 22, 1941 (gage height, 23.0 

feet), from rating curve extended above 5,100 second-feet by logarithmic plotting; 

minimum daily, 0.1 second-foot June 24, 27, July 25, 1947. 

Remarks.- Records good except those for periods of no gage-height record, which are 

poor. Diversions above station for irrigation. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 0.2 0.4 0.3 0.4 0.2 0.4 0.3 0.4 28 0.8 0.7 0.4 

2 .2 .4 .3 .4 .2 .4 .4 .3 460 .7 424 .4 

3 .2 .4 .3 1.8 .3 .4 .4 .4 a200 .7 91 .5 

4 .2 .4 .3 .4 .3 6.3 .4 .4 340 .7 1.3 .5 

5 .2 .3 .3 .4 .4 21 .5 .3 80 .7 .4 .5 

6 .2 .3 .3 .4 .3 .5 .5 .3 60 14 .4 .5 

7 .2 .3 .3 a.4 .3 .4 .5 .3 54 .8 .4 .6 

8 .2 .3 .3 8.4 .4 .4 .5 .3 24 .8 .4 .7 

9 .2 .4 .3 a.4 .4 .3 .6 .3 35 .8 .4 .5 

10 .2 .4 .3 a.4 .4 .9 .6 .3 40 .8 .4 .7 

11 .2 .3 .4 a.4 1.2 3.0 .5 .3 40 .8 .4 .7 

12 .2 .4 .4 a.4 15 .5 .6 .3 37 .7 .5 .6 

13 .2 .4 .3 a.4 3.8 .4 .6 .3 37 .6 .5 .6 

14 .2 .4 .3 .4 .4 .3 .5 .3 21 .6 .6 .5 

15 .3 .4 .3 .4 1.2 .4 .5 .3 1.2 .6 .7 .4 

16 .2 .4 .3 .4 .4 .4 .5 .3 1.0 .7 .6 .5 

17 .2 .4 .4 .4 .4 .4 .4 .4 .9 .7 .6 .4 

18 .3 .4 .3 .4 .5 .3 .4 .4 1.0 .6 .6 .4 

19 .2 .4 .3 .4 .5 .3 .4 .4 1.0 .6 .5 .4 

20 .3 .4 .3 .4 .5 .3 .4 .3 .9 .6 .6 .4 

21 .3 .4 .3 .4 .5 .3 .4 .4 .9 .6 .6 .4 

22 .3 .4 .3 .4 .5 .3 .4 .4 .9 .7 .6 .4 

23 .3 .4 .3 .4 .5 .3 .4 .4 .9 .8 .6 .4 

24 .3 .4 .3 .4 .5 .3 .3 .3 .9 .8 .6 .5 

25 .3 .4 .3 .4 .5 .3 .3 .3 .9 .8 .6 .4 

26 .4 .3 .3 .4 .5 .3 .3 .4 .9 .8 .6 .4 

27 .3 .4 .3 .4 .5 .4 .3 .4 .9 .8 .5 .4 

28 .4 .4 .4 .4 .5 .3 .4 .6 .9 .8 .5 .4 

29 .4 .4 .9 3.1 .5 .3 .4 .8 .9 .8 .5 .4 

30 .4 .4 1.0 2.9 .2 .4 .9 .8 .8 .5 .4 

31 .4 .7 .3 - .3 1.4 - .8 .4 -

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 8.1 0.4 0.2 0.26 16 

November 11.4 .4 .3 .38 23 

December 11.4 1.0 .3 .37 23 

Calendar year 1947 244.7 27 .1 .67 485 

January 18.9 3.1 .3 .61 37 

February 31.6 15 .2 1.09 63 

March 40.6 21 .2 1.31 81 

April 13.1 .6 .3 .44 26 

May 12.9 1.4 .3 .42 26 

June 1,470.9 460 .8 49.0 2,920 

July 35.8 14 .6 1.15 71 

August 531.0 424 .4 17.1 1,050 

September 14.3 .7 .4 .48 28 

Water year 1947-48 2,200.0 460 .2 6.01 4,360 

Peak discharge ibase 180 sec.-ft.).- June 2 (1:30 a.m.) 1,100 sec.-ft.; June 2 (about 12 p.m. 11,400 sec.-ft.; ug. 2 (2:30 p.m.) 3,050 sec.-ft. a No gage-height record; discharge computed on basis of weather records and engineers' notes. 
		

				

342 RIO GRANDE BASIN 

Cottonwood Creek near Lake Arthur, N. Mex. 

Location.- Water-stage recorder and concrete control, lat. 32°55,00u , long. 104°22.00", 

In 314SE-1 sec. 15, T. 16 S., R. 26 E. If miles upstream from mouth and 6 miles south 

of town of Lake Arthur. Datum of gage raised 1.54 feet May 22, 1948. 

Drainage area.- 199 square miles (contributing area). 

Records available.- March 1932 to September 1948. 

Average discharge.- 16 years, 10.0 second-feet. 

Extremes.- Maximum discharge during year, 213 second-feet June 2 (gage height, 7.91 feet); 

minimum daily, 0.6 second-foot May 29, 30. 

1932-48: Maximum discharge, 1,100 second-feet June 13, 1935, from rating curve 

extended above 15 second-feet by logarithmic plotting; maximum gage height, 12.0 feet 

May 30, 1937, present datum, from floodmarks (backwater from Pecos River); no flow at 

times. 

Remarks.- Records good except those for Mar. 30, 31, Apr. 8, 11, May 17-22, which are 

poor. Diversions above station for irrigation. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 0.9 3.0 5.9 6.8 8.4 4.2 2.2 1.0 8.6 2.8 2.2 1.3 

2 . .9 3.1 5.0 7.0 8.4 4.0 1.3 1.2 176 2.5 1.7 1.2 

3 .9 3.2 6.6 5.9 8.4 4.0 2.0 1.0 131 2.0 1.6 1.2 

4 .9 3.4 7.8 5.9 8.8 4.0 2.2 .9 34 1.3 1.7 1.2 5 .9 3.4 7.8 6.1 11 4.0 1.9 .9 15 1.2 1.7 1.2 

6 .9 3.2 8.0 6.4 10 4.2 1.6 1.2 13 1.2 1.6 1.2 7 .9 3.2 8.6 6.8 9.8 4.2 2.1 1.0 13 1.7 1.5 1.2 

8 .9 3.4 7.8 7.0 8.8 4.1 c2 1.3 12 2.0 1.5 1.4 9 .9 3.5 7.0 7.0 8.4 4.1 1.6 4.0 12 1.0 1.9 1.4 

10 .9 3.8 6.8 7.4 9.1 4.8 1.6 2.3 12 .8 1.6 1.4 

11 .9 3.8 6.6 7.8 8.2 4.7 c2 3.2 12 .9 1.1 1.3 

12 .9 4.0 6.6 8.2 8.4 5.0 2.3 4.0 12 .9 2.2 1.3 13 .9 4.1 6.6 8.0 9.6 5.7 4.4 4.2 12 1.0 1.6 1.3 14 .9 4.2 6.8 8.0 9.6 5.0 L.0 4.4 11 .1.£ CO. 1.3 15 .9 4.2 6.8 8.2 9.8 2.5 2.0 4.1 9.0 1.1 2.2 1.3 

16 1.1 4.4 6.4 8.2 9.8 1.7 2.4 4.1 6.3 1.2 2.6 1.3 

17 1.1 4.8 4.8 8.2 9.8 4.0 3.8 4.0 6.8 1.1 2.5 1.3 18 1.0 5.5 5.5 8.2 9.1 5.0 5.5 a3.5 7.2 1.6 2.3 1.3 

19 1.0 5.7 5.4 8.2 8.6 4.1 2.5 a3.0 9.8 2.3 2.4 1.3 

20 1.1 6.1 5.2 8.2 6.8 3.2 1.3 a2.5 9.8 1.9 2.5 1.2 

21 1.1 6.3 5.5 8.2 4.0 5.7 1.3 a1.5 9.8 .8 2.0 1.3 

22 1.0 6.3 5.7 8.4 4.0 6.1 1.2 .9 9.8 .8 1.8 1.3 

23 1.0 6.6 5.0 8.4 4.0 2.8 1.1 .9 9.5 .8 1.8 1.2 24 1.3 6.8 5.9 8.6 4.2 1.9 1.0 1.0 6.8 .8 1.5 1.2 

25 1.8 6.1 7.4 8.2 4.4 3.3 1.1 1.0 5.9 .8 1.5 1.2 

26 2.0 2.3 e..8 8.2 4.2 2.4 1.2 .8 9.2 .7 1.6 1.3 27 2.1 5.9 6.3 8.2 4.4 1.9 1.0 .7 9.0 .7 1.7 1.3 28 2.3 7.0 6.8 8.2 4.2 3.8 .9 .7 7.2 1.1 2.3 1.3 29 2.5 7.2 7.4 8.2 4.4 2.5 1.0 .6 4.0 1.9 1.6 1.4 30 2.6 7.2 6.8 8.2 c2 .9 .6 3.3 1.4 1.3 1.4 

31 2.8 6.6 8.4 - c2 1.3 2.5 1.4 -

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 39.3 2.8 0.9 1.27 78 November 141.7 7.2 3.0 4.72 281 December 202.2 8.6 4.8 6.52 401 

Calendar year 1947 1,752.8 19 .2 4.80 3,480 

January 238.7 8.6 5.9 7.70 473 

February 218.6 11 4.0 7.54 434 March 116.9 6.1 1.7 3.77 232 

April 57.4 5.5 .9 1.91 114 

May 61.8 4.4 .6 1.99 123 

June 597.3 176 3.3 19.9 1,180 

July 42.0 2.8 .7 1.35 83 August 56.9 2.6 1.1 1.84 113 September 38.5 1.4 1.2 1.28 76 

Water year 1947-48 1,811.0 176 .6 4.95 3,590 

Peak dischar e ase, sec. .Tune 2 (6:60 p.m 213 sec.-ft. a No gage-he g record; discharge computed on basis of comparison of flow past Pecos River at Lake Arthur and Pecos River near Artesia. c Backwater frpm aquatic vegetation; discharge computed as explained in footnote a. 
343 

RIC GRANDE BASIN 

Black River above Malaga, N. Mex. 

Location.- Water-stage recorder, lat. 32°14.00", long. 104°09,15", in Ei sec. 11, T. 24 

S., R. 27 E., 0.6 mile upstream from Black River diversion dam, 4.8 miles west of 

Malaga and about 7 miles upstream'from mouth. 

Drainage area.- 343 square miles. 

Records available.- March to December 1940 and December 1946 to September 1948. 

Extremes.- Maximum discharge during period, 9,230 second-feet May 31 (gage height, 9.82 

feet), from rating curve extended above 127 second-feet on basis of logarithmic plotting and peak-flow; daily, 7.0 second-feet Aug. 8, 9. 

1940, 1946-48: Maximum discharge, that of May 31, 1948, compar:s3ns with rated 

stations downstream; minimum daily, 2.4 second-feet Oct. 10, 1940. 

Maximum stage known, 19.0 feet in September 1941, from well defined floolmarks 

determined in 1947 (discharge not determined). 

Remarks.- Records good except those above 140 second-feet, which are poor. Diversions 

-M-6t7 and below station for irrigation. 

Rating table, water year 1947-48 (gage height, in feet, and discharge, in second-feet) 

0.4 0 1.0 19.9 1.9 180 

.5 .44 1.1 29.8 2.1 240 

.6 1.61 1.2 41.6 2.4 345 .7 3.60 1.3 56 2.7 470 

.8 6.65 1.5 89 3.0 620 

.9 11.7 1.7 130 3.5 940 

Discharge, In second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 11 

2 11 3 11 4 11 5 11 

6 11 7 11 8 11 9 11 10 12 

11 10 12 8.4 13 8.0 14 25 15 9.4 

16 8.4 17 8.0 18 8.0 19 8.0 20 8.4 

21 8.9 22 8.4 

23 8.0 24 8.0 25 7.5 

26 8.0 27 8.0 28 8.0 29 8.0 30 8.0 31 8.0 

000000090.. 

0000000000 """"'2' 22222' 

10 14 17 12 10 8.9 405 11 8.9 10 

10 14 18 12 10 9.4 619 11 8.4 10 

11 14 17 12 10 9.4 42 11 8.9 10 

11 14 16 12 10 10 25 10 8.4 10 

11 14 16 12 10 10 19 10 8.0 10 

11 14 15 12 10 10 17 13 8.0 10 

11 14 14 10 10 10 16 11 7.5 11 

11 14 15 10 10 10 15 10 7.0 10 

11 14 14 10 10 10 15 10 7.0 11

11 14 13 9.4 10 10 15 10 7.5 11 

12 14 12 8.9 8.9 10 15 10 8.0 11 

12 15 12 8.9 10 11 14 10 7.5 12 

12 14 12 8.9 10 11 13 10 7.5 12 

11 14 12 8.4 19 11 13 10 7.5 12 

12 14 12 8.0 10 10 12 10 7.5 12 

12 15 12 8.9 10 10 12 10 8.4 12 

12 15 13 8.9 10 9.4 12 9.4 8.9 12 

12 15 13 8.4 10 9.4 12 10 8.4 12 

12 15 13 8.4 9.4 9.4 12 9.4 8.4 12 

12 15 13 8.9 9.4 9.4 12 9.4 8.9 11 

12 15 14 8.9 10 9.4 11 9.4 8.4 11 

13 14 14 8.9 10 8.9 11 9.4 8.4 10 

13 14 14 8.9 10 8.9 10 9.4 8.4 10 

14 14 14 8.9 9.4 8.9 10 9.4 8.4 10 

14 14 14 8.9 8.9 276 11 27 8.0 10 

14 14 14 9.4 9.4 148 11 10 8.4 9.4 

14 15 12 9.4 8.9 26 11 10 8.9 8.9 

14 14 12 10 8.9 13 10 10 9.4 8.4 

14 15 13 10 9.4 10 11 9.4 10 8.4 

14 15 10 9.4 9.4 11 8.9 10 8.0

15 16 - , 9.4 - 788 8.9 10 

Second- Runoff in Month foot-days acre-feet Maximum Minimum Mean 

301.4 25 7.5 9.72 598 

November 

October 276.5 10 8.0 9.22 548 

December 378.0 15 10 12.2 750 

_ 

Calendar year 1947 4,809.3 43 7.5 13.2 9.540 

446 16 14 14.4 885 

February 

January 400 18 12 13.8 793 

March 300.7 12 8.0 9.70 596 

April 292.0 10 8.9 9.73 579 

May 1,504.8 788 8.9 48.5 2,980 

1,422 619 10 47.4 2,820 June 

July 327.0 27 8.9 10.5 649 

August 258.9 10 7.0 8.35 514 

September 315.1 12 8.0 10.5 625 

6,222.4 788 7.0 17.0 12,340 Water year 194/-48 

Peak discharge (base, 200 sec.-ft.).- May 25 (7:10 p.m.) 4,020 sec.-ft.; May p.m.) 9,-__ 

scc.-ft.: June 1 (11:30 p.m.) 3,200 sec.-ft. 

905771 0 - 50 - 23 
.

344 RIO GRANDE BASIN 

Delaware River near Red Bluff, N. Mex. 

Location.- Water-stage recorder and concrete control, lat. 3r01', long. 104°03', sec. 

23, T. 26 S., R. 28 E., at bridge on U. S. Highway 285, 3 miles upstream from mouth 

and 4 miles south of Red Bluff, Eddy County. Datum of gage is 2,900.7 feet above 

mean sea level, datum of 1929. 

Drainage area.- 689 square miles (revised). 

Records available.- October 1937 to September 1948. April 1912 to September 1913 at 

site 3 miles upstream(published as Delaware River near Malaga, N. Mex.). May 1914 

to June 1915 at site 2f miles downstream (published as Delaware River near Angeles, 

Tex ). 

Average discharge.- 12 years (1912-13, 1937-48), 12.0 second-feet. 

Extremes.- Maximum discharge during year, 8,040 second-feet May 31 (gage height, 9.02 

feet); no flow at times. 

1912-13, 1914-15, 1937-48: Maximum discharge, 34,600 second-feet June 27, 1938 

(gage height, 18.00 feet, from floodmarks), by slope-area method: no flow at times. 

Remarks.- Records fair. No diversions above station. 

Rating table, water year 1947-48 (gage height, in feet, and discharge, in second-feet) 

0.52 0 1.2 4.1 1.9 21 2.6 130 

.6 .1 1.3 5.5 2.0 27 2.8 205 

.7 .2 1.4 7.1 2.1 34 3.0 290 

.8 .6 1.5 9.2 2.2 44 3.2 390 

.9 1.1 1.6 12 2.3 56 3.5 575 1.0 1.9 1.7 14 2.4 72 

1.1 2.9 1.8 18 2.5 98 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. , 1 .. 0000 (..,N.000000000. .-.:-.00000 .... O. ...WWW •-• ......0. 0D 

1 0.3 0.9 2.1 2.6 2.3 1.7 1.4 0.5 121 2 .4 .9 2.1 2.5 2.3 1.7 1.5 .4 120 

3 .4 1.0 2.3 2.4 2.2 1.7 1.5 .3 24 4 .4 1.1 2.5 2.3 2.5 1.7 1.4 .3 8.5 5 .5 1.1 2.5 2.2 3.3 1.8 1.4 .3 4.2 

6 .5 1.0 2.4 2.2 3.1 1.9 1.3 .2 2.5 7 .6 1.0 2.2 2.2 2.6 1.9 1.2 .3 1.8 8 .6 1.2 2.2 2.2 2.4 1.9 1.1 .2 1.4 

0.2 

0 0

0.2 

.1 

.1 0 0 0 0 

0 0 0 0 0 0 

0 0 

0 0 

0 0 0 0 0 0 3 0 4.8 0 

43 0 6.4 0 2.3 0 

9 .5 1.4 2.1 2.2 2.4 1.8 1.1 .' 1.1 10 .5 1.5 2.1 2.1 2.3 1.7 1.2 .1 .9

11 .5 1.5 2.2 2.1 1.9 1.8 1.1 .1 .8 12 .5 1.6 2.2 2.0 1.9 1.8 .9 .1 .6 13 .5 1.7 2.3 2.0 2.1 1.8 .9 .3 .5 14 .6 2.2 2.4 2.0 2.1 1.8 1.1 .5 .3 15 .6 2.3 2.3 2.0 2.1 1.6 1.1 .4 .2 

16 .7 2.1 2.3 2.0 2.0 1.5 1.2 .3 .2 17 .6 2.1 2.2 2.0 1.9 1.6 1.1 .2 .2 18 .6 2.3 2.2 2.1 1.9 1.7 1.0 .1 .1 19 .6 2.3 2.2 2.1 1.9 1.7 .9 0 20 .7 2.2 2.2 2.1 1.9 1.7 .8 0 0 

21 .8 2.1 2.2 2.2 1.9 1.5 .8 0 0 

0.90 .4 0

.1 0 22 .7 1.9 2.2 2.2 1.9 1.5 1.1 0 0 0 0 23 .6 2.1 2.2 2.1 1.9 1.5 1.4 0 0 0 0 24 .7 2.1 2.2 2.2 1.9 1.5 1.3 0 0 0 0 .7 2.1 2.2 2.2 1.9 1.5 .9 34 0 0 0 

0 0 0 0 0 0 81 0 

25 

26 .8 1.9 2.2 2.3 2.0 1.4 .8 63 0 27 .9 1.9 2.2 2.3 1.9 1.4 .7 15 0 28 1.0 2.0 2.2 d2.4 1.8 1.4 .7 5.4 .8 29 1.1 2.0 2.2 d2.6 1.7 1.6 .7 2.8 .2 50 1.0 2.0 2.1 2.7 1.4 .7 1.7 .1 3.2 0 .9 2.4 2.7- 1.3 - 523 .5 

.--- -

Month Secondfoot-days Maximum Minimum Mean Runoff in 

acre-feet 

October 

November 

December 

19.8 

51.5 

69.3 

1.1 

2.3 

2.5 

0.3 

.9 

2.1 

0.64 

1.72 

2.24 

39 

102 

137 

Calendar year 1947 521.2 6.3 0 - 1.43 1,030 

January 

February 

March 

April 

May 

June 

July 

August 

September 

69.2 

62.0 

50.8 

32.3 

649.6 

289.4 

25.7 

142.8 .4 

2.7 

3.3 

1.9 

1.5 523 

121 

13 

81 .2 

2.0 

1.7 

1.3 

.7 

0 

0 

0 

0 

0 

2.23 

2.14 

1.64 

1.08 

21.0 

9.65 

.83 

4.61 

.01 

137 

123 

101 

64 1,290 574 

51 

283 .8 

Water year 1947-48 1,462.8 523 0 4.00 2.900 

Peak discharge (base, 650 sec.-ft.).- May 31 (10:00 p m.) 8,040 sec.-ft.; Aug. 29 (5 p.m.) 1,060 sec.-ft. d Doubtful gage-height record; discharge interpolated. 

31 
		

345 

RIO GRANDE BASIN 

Salt (Screwbean) Draw near Orla, Tex. 

Location.- Water-stage recorder and low-water control, lat. 31°52'40", long. 103°56'50", 

at bridge on U. S. Highway 285, 157 feet upstream from Panhandle & Santa Fe Railway 

bridge, 2.7 miles southwest of Red Bluff Dam, 4.1 miles northwest of Orla, Reeves 

County, and 5 miles upstream from mouth. Datum of gage is 2,804.2 feet above mean 

sea level, datum of 1929. 

Drainage area.- 464 square miles (revised). 

Records available.- August 1939 to December 1940, October 1943 to September 1948. 

Extremes.- Maximum discharge during year, 840 second-feet June 25 (gage height, 9.93 

feet); no flow at times. 

1939-40, 1943-48: Maximum discharge, 3,040 second-feet Aug. 18, 1944 (gage 

height, 13.88 feet), from rating curve extended above 1,500 second-feet; no flow at 

times. Floods have reached a stage of 18 or 19 feet, from information by local residents. 

Remarks.- Records good except those for periods of no gage-height record; which are 

poor. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 • 0 0 10 2 0 0 26 3 3 0 3.2 

0000 00000 00000 00000 0 0

..... 

FI,N ..00000000000% N0000 00000000. 0

5.9 

5.3 

5.0 

4.7 

4.1 

3.8 

3.2 

2.6 

2.3 

1.7 

1.4 

1.0 

.3 

.2 

.2 

.2 

.2 

.2 

.1 

.1 

.1 

.2 

.1 

.1 

.1 

.1 

.1 

.1 

.1 

.1 

5 0 0 

4 3 0 .3 

.2 

6 0 0 .2 

8 .1 0 

7 .1 0 .1 

.1 9 .1 0 .1 10 .1 0 .1 

11 .1 0 .1 12 0 0 .1 

14 0 0 

13 0 0 .1 

.1 15 0 0 .1 

16 0 0 .1 17 0 0 .1 

19 0 

18 0 0 .1 0 0 20 0 0 0 

21 0 0 0 22 0 0 0 23 0 0 0 24 0 0 0 25 0 52 120 

27 0 .2 

26 0 7.0 57 

4.7 28 0 .2 1.2 29 0 .1 .3 30 .1 .2 31 - 28 -

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 0 November 0 December 0 

Calendar year 1947 51.4 . -

January • 0 February .5 March 0 April 0 May 87.6 June 224.5 July 1.3 August 45.5 September 43.6 NNW 

Nt ON00 0001 000 W N r I M 

00000000 10000

1 

C 0 0 0 0 0 

.14 101 

0 0 .02 1.0 0 0 0 0 

2.83 174 7.48 445 .04 2.6 1.47 

1.45 86 

Water year 1947-48 403.0 120 0 1.10 799 

Peak discharge (base, 600 sec.-ft.).- June 25 (10:30 p.m.) 840 sec.-ft. 

Note.- No gage- eight record July 15 to Aug. 9, Aug. 12 to Sept. 12, Sept. 23-30; discharge compute-2-7,n basis of recorded range in stage, weather records, and records for Pecos River near Orla. 

90 
346 RIO GRANDE BASIN 

Principal diversions from Pecos River between Red Bluff Reservoir and Imperial. Tex. 

Records of discharge are collected for eight canals that divert water from Pecos River 

between Red Bluff Reservoir and Imperial, Tex. Each of these canals is equipped with a 

water-stage recorder for collecting gage-height records. All stations are located within 

2 miles of canal head gate except as noted herein. Water diverted by these canals is used 

for irrigation of lands on both sides of Pecos River in Reeves, Ward, and Pecos Counties. 

Stations prior to 1941 were published separately (daily discharge figures for the earlier 

records). Gage-height records collected in cooperation with Red Bluff Water Power Control 

District, Pecos, Tex. 

Reeves County Water Imorovement District No. 2 Canal near Mentone, diverts from right 

bank, lat. 31'38', jong. 103'34'. Records avdTIable, February 1922 to July 1925 (published as Farmers Independent Canal near Porterville, Tex.) and August 1939 to September 1948. 

Ward County Water Improvement District No. 3 Canal near Barstow, diverts from left bank, 

lat. 31°34', long. 103°31. Records available, August 1939 to September 1948. 

Ward County Irrition District No. 1 Canal near Barstow, diverts from left bank, let. 

31'33', long.-103°29'. Records available, February 1922 to September 1925 at site about 

half a mile upstream (published as Barstow Canal near Barstow, Tex.). and August 1939 

to September 1948. 

Grandfalls-Big Valley Canal near Barstow, diverts from left bank. lat. 31°2o', long. 

103°15'. Records available, March 1922 to November 1925, September 1939 to September 

1948. Water diverted through Ward County Water Improvement District No. 2 Canal irrigates most of lands formerly supplied by this canal. 

Pecos County Water Improvement District No. 2 upper diversion Canal near Grandfalls, diverts from right bank, lat. 3-1"20', long. 102°58' (gage l2 inTs aowntream from head 

gates). Records available, March 1922 to July 1925 at site 11 miles upstream (published as Imperial High-line Canal near Grandfalls, Tex.), and August 1939 to September 

1948. Prior to Dec. 8. 1947, water-stage recorder at site 2i miles downstream at 

different datum. 

Pecos County Water Improvement District No. 2 Canal near Imperial, diverts from right 

bank, -lat. 31°Ior, long. 1.02°4o,(gage 71 mlieE-below outlet head gate at Imperial 

Reservoir). Records available, April 1940 to September 1948. 

Ward County Water Improvement District No. 2 Canal near Grandfalls, diverts from left 

bank, rat. 31'22', long. 103'01'. Records available, August 1939 to September 1948. 

Pecos County Water Improvement District No. 3 Canal near Imperial, diverts from Pecos 

County Water Improvement District No. 2 canal above station near Imperial on that canal, 

let. 31°18', long. 102°45'. Records available, March 1940 to September 1948. 

Several smaller diversions (pumps) divert water between Red Bluff Reservoir and Imperial 

for irrigation of lands adjacent to Pecos River, but no records for them were obtained. 

Diversions, In acre-feet, water year October 1947 to September 1948 

Reeves County Ward County Ward County OrandfallsMonth District 2 

Canal near 

District 3 

Canal near 

District 1 

Canal near 

ale Valley 

Canal near 

Mentone Barstow Barstow Barstow 

October 37 0 255 

November 

December 

50 

29 

0 

0 

2.8 

14 

0 

7; 

Calendar year 1947 6,680 7,500 17,870 2,710 

January 

February 

March 

50 

99 

133 

0 

0 

0 

19 

21 

21 

0 

0 

0 

April 

May 

June 

July 

August 

September 

01,350 

c407 

c1,090 

a132 

ac1,550 ac487 

1,850 0 

2,530 

1,250 

0 

260 

1,560 

2,860 

4,530 

.1,350 

3,890 

a729 

205 

443 

687 

636 

2.8 

160 

Water year 1947-48 5,410 5,890 16,950 2,130 

Month 

Pecos County 

District 2 

Canal (upper 

diver.) near 

Orandfalls 

Pecos County 

District 2 

Canal near 

Imperial. 

Ward County 

District 2 

Canal near 

Orandfalls 

Pecos County 

District 3 Canal near 

Imperial. 

October 7.3 D 441 3 

November c97 .6 58 0 

December 0 0 0 0 

Calendar year 1947 27,190 10,490 21,240 10,940 

January 

February 

March 

502 

742 

507 

0 

0 

713 

0 

0 

341 

0 

0 

0 

April 

May 

June 

4,770 

a1,520 

7,170 

1,140 

1,410 

1,670 

4,460 

1,350 

5,920 

1,620 

1,130 

2,060 

July 

August 

September 

5,830 

2,350 

965 

2,230 

2,250 

871 

1,830 

633 

154 

3,350 374 

71 

Water year 1947-48 24,460 10,280 15,193 8,600 

*Combined flow of Pecos County Water Improvement District No. 2 Canal near Imperial 

and Pecos County Water Improvement District No. 3 Canal near Imperial represents released water from Imperial Reservoir (fed by Pecos County Water Improvement District 

No. 2 upper diversion canal) plus water diverted from Pecos River by Pecos County 

Water Improvement District No. 2 lower diversion canal. 

a No gage-height record at times; discharge computed on basis of available measurements, recorded range in stage, engineers' notes, and records for nearby stations. 

c Backwater from check gates part of month. 
---- 

347 

RIO GRANDE BASIN 

Madera Canyon near Toyahvale, Tex. 

Location.- Water-stage recorder, lat. 30°52,, long. 103°58', in Jeff Davis County, 11 miler 

t.Wam from Aguja Canyon and 12 miles southwest.of Toyahvale, Reeves County. 

Drainage area.- 54 square miles. 

Records available.- July 1932 to September 1948. 

Average discharge.- 16 years, 4.58 second-feet. 

Extremes.- Maximum discharge during year, 377 second-feet July 23 (gage height, 3.01 feet), 

---TFUETating curve extended above 200 second-feet on basis of slope-area determination at 

gage height 6.8 feet; no flow most of time. 

1932-48: Maximum discharge, 5,120 second-feet Sept. 29, 1932 (gage height, 8.00 

feet, from floodmark), from rating curve extended above 200 second-feet on basis of 

slope-area determination at gage height 6.8 feet; no flow at times. 

Remarks.- Records poor. No diversion above station. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. I 1 I , O‘,0000 007, 00 00000 00000 00000 00000

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 

0 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

l o b

1-1 

00.000000:J 000

N : 1 

0 

1

I I 

I 1 

I ...I 

00:g0000001 :000

October 

November 

December . 

Calendar year 1947 

January 

February 

March 

April 

May 

June 

July 

August 

00o lw ,000000800 , I ct l 

I I 1 I I 

I 1 I 

0 

0 

0 

I

_ 

0 

0 

0 

0 

0 

0 

o 

0 

0

0 

September 0 

Water year 1947-48 

Peak discharge (base, 200 sec.-ft.).- July 23 (5:30 p.m.) 377 sec.-ft. 

18.0 16 0 .05 

0 

0 

488 

0 

0 

0 

0 

0 

0 

36 

0 

0 

36 
348 RIO GRANDE BASIN 

Toyah Creek below Toyah Lake, near Pecos, Tex. 

Location.- Water-stage recorder, lat. 31°211 , long. 103°24., at bridge on county road 

between Pecos andprandfalls, at lower end of Toyah Lake, 6 miles upstream from mouth 

and 7.4 miles southeast of Pecos, Reeves County. 

Drainage area.- 3,709 square miles (contributing area). 

Records available.- August 1939 to September 1948. 

Extremes.- Maximum discharge during year, 19 second-feet July 31 (gage height, 1.57 feetk 

no flow most of time. 

1939-48: Maximum discharge, 5,850 second-feet Aug. 7, 1940 (gage height, 4.17 feet); 

no flow most of time. 

Flood of September 1932 reached a stage of 7.7 feet, from information by local residents. 

Remarks.- Records good. Several diversions above station for irrigation. Flood flow materially affected by use of spread-out dams above station. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

'- '9 '"1 9'n'. 

00000 00000 00000 00000 00n ow wco

.-. 

[

14 

12 

9.3 

5.8 

3.5 

2.0 

.5 

.1 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

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 

Second- Kean Runoff in Month Maximum Minimum foot-days acre-feet 

October 0 0 0 0 0 November 0 0 0 0 0 December 0 0 0 0 0 

Calendar year 1947 46.9 10 0 .13 93 

January 0 0 0 0 0 February 

March 0 

0 0 0 0 0 0 

0 0 

0 April 

May 0 

0 0 

0 0 

0 0 0 0 

0 June 0 0 0 0 0 July 

August 

September • 

35.6 

47.2 

0 

16 

14 

0 

0 

0 

0 

1.15 

1.52 

0 

71 

94 

0 

Water year 1947-48 82.8 16 0 .23 165 

Peak discharge (base, 400 sec.-ft.).- No peak above base. 
		

		

:349 RIO GRANDE BASIN 

San Solomon Springs at Toyahvale, Tex. 

Location.- Water-stage recorder and sharp-crested weir, lat. 30°5fj', long. 103°47', on 

South Canal at Toyahvale, Reeves County, and 540 feet downstream from spring pool. 

Datum of gage is 3,311.0 feet above mean sea level, datum of 1929. 

Records available.- October 1931 to December 1933, March 1941 to September 1948. 1900, 

1904, 1919, 192-25, 1934-36 (occasional discharge measurements published as miscellaneous measurements). 

Extremes.- Maximum daily discharge during year, 34 second-feet May 10, 11; minimum 

daily, 30 second-feet July 15, 16. 

1931-33, 1941-48: Maximum daily discharge, 71 second-feet Oct. 7-9, 1932, Oct. 26-

30, 1941; minimum daily, 30 se,ond-feet Nov. 5-11, 1931, Jan. 22 to Feb. 23, 1932, 

July 15. 16, 1948. 

Maximum discharge measured during years when occasional measurements were made, 

46 second-feet Sept. 5, 1900, July 21. 1904. 

Remarks.- Records good. Discharge represents total flow of springs and is determined 

by combining flows in South Canal and two additional outlets (flow measured periodically), Middle and North Canals. Plow into each canal regulated by operation of 

head gates. Water used for Irrigation in vicinity of Balmorhea. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. may June July Aug. Sept. 

1 31 32 31 33 32 31 32 32 31 31 32 31 

2 31 32 31 33 32 31 32 32 32 3: 32 31 

3 32 32 31 33 32 31 32 32 32 31 32 31 

4 32 32 31 33 32 31 32 32 33 31 31 31 

5 32 32 31 33 32 31 31 32 32 31 31 31 

6 32 32 31 33 32 31 31 32 32 31 31 31 

7 31 31 31 33 32 31 31 32 32 31 31 31 

8 31 31 31 33 32 31 31 32 32 3: 31 31 

9 31 31 31 33 32 31 31 33 32 31 31 31 

10 31 31 31 33 32 31 31 34 32 31 31 32 

11 31 31 31 33 31 31 31 34 32 31 31 32 

12 32 31 31 33 31 31 32 33 32 31 31 32 

13 32 31 31 33 31 31 32 33 32 31 31 31 

14 32 31 31 33 31 31 31 33 32 31 31 31 

15 31 31 31 33 31 31 31 33 32 30 31 31 

16 31 31 31 33 31 31 31 33 31 30 32 31 

17 31 31 31 33 31 31 31 33 31 31 32 31 

18 31 31 31 33 31 31 31 33 31 31 32 31 

19 31 31 31 33 31 31 32 33 32 31 31 31 

20 31 31 32 33 31 31 32 33 32 31 31 31 

21 32 31 32 33 31 31 32 32 32 31 31 31 

22 32 31 32 33 31 31 33 32 32 31 31 31 

23 32 31 32 33 31 31 33 33 32 31 31 31 

24 32 31 32 33 31 31 33 33 32 31 31 31 

25 32 31 32 33 31 31 33 33 32 32 31 31 

26 32 31 32 33 31 31 33 33 32 32 31 31 

27 32 31 32 32 31 31 33 32 32 32 31 31 

28 32 31 32 32 31 31 33 32 31 32 31 31 

29 32 31 32 32 31 31 33 31 31 32 31 31 

30 32 31 32 32 31 33 31 I 31 32 31 31 

31 32 32 32 31 31 32 31 

Runoff in Month acre-feet Second- 1 Maximum Minimum Mean foot-days 

October 979 32 31 31.6 1,940 November 936 32 31 51.2 1,860 December 973 32 31 31.4 1,930 

Calendar year 1947 12,359 41 31 33.9 24,500 

January 1,018 33 32 32.8 2,020 February 909 32 31 31.3 1,800 March 961 31 31 31.0 1,910 April 957 33 31 31.9 1,900 May 1,007 34 31 32.5 2,000 June 954 33 31 31.8 1,890 July 966 32 30 31.2 1,920 August 967 32 31 31.2 1,920 September 933 32 31 31.1 1,850 

Water year 1947-48 11,560 34 30 31.6 22,940 
		

350 RIO GRANDE BASIN 

Comanche Springs at Fort Stockton, Tex. 

Location.- Water-stage recorder, lat. 30°53, , long. 102°52,, on outlet canal of Pecos 

County Water Improvement District No. 1, in eastern outskirts of Fort Stockton, Pecos 

County, a quarter of a mile upstream from bridge on U. S. Highway 290 and 0.5 mile 

downstream from head of springs. Datum of gage is 2,922.8 feet above mean sea level, 

datum of 1929. 

Records available.- February 1941 to September 1948. 1899, 1904, 1919, 1922, 1924-25, 

1932-41 (occasional discharge measurements published as miscellaneous measurements). 

Extremes.- Maximum daily discharge during year, 39 second-feet Oct. 1-8, Nov. 14 to Feb.15; 

minimum daily, 33 second-feet Aug. 6 to Sept. 5. 1941-48: Maximum daily discharge, 54 second-feet Jan. 30, 1942; minimum daily, 

that of Aug. 6 to Sept. 5, 1948. 

Maximum discharge measured prior to 1941, 66 second-feet June 23, 1899; minimum 

measured, 38.7 second-feet July 14, 1936. 

Remarks.- Records good. Discharge represents total flow of springs exclusive of surface 

runoff from precipitation. Spring flow fluctuates slowly; aquatic growth changes 

stage-discharge relation frequently; daily discharge determined from hydrograph based 

on discharge measurements. About 6,000 acres of land irrigated below station. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 39 38 39 39 39 38 38 37 38 38 34 33 2 39 38 39 39 39 38 38 37 se 38 34 33 3 39 38 39 39 39 38 38 37 38 37 34 33 4 39 38 39 39 39 38 38 37 38 37 34 33 5 39 38 39 39 39 38 38 37 38 37 34 33 

6 39 38 39 39 39 38 38 37 38 37 33 34 7 39 38 39 39 39 38 38 37 38 37 33 34 8 39 38 39 39 39 38 38 37 38 37 33 34 9 38 38 39 39 39 38 38 37 38 37 33 34 10 38 38 39 39 39 38 38 36 38 37 33 34 

11 38 38 39 39 39 38 38 36 38 36 33 34 12 38 38 39 39 39 38 38 36 38 36 33 34 13 38 38 39 39 39 38 38 36 58 36 33 34 14 38 39 39 39 39 38 38 36 38 36 33 34 15 38 39 39 39 39 38 38 36 38 36 33 34 

16 38 39 39 39 38 38 38 36 38 36 33 34 17 38 39 39 39 38 38 38 36 38 35 33 34 18 38 39 39 39 38 38 38 36 38 35 33 34 19 38 39 39 39 38 38 38 36 38 35 33 34 20 38 39 39 39 38 38 38 37 38 35 33 34 

21 38 39 39 39 38 38 38 37 38 35 33 34 22 38 39 39 39 38 38 38 37 38 35 33 35 23 38 39 39 39 38 38 37 37 38 35 33 35 24 38 39 39 39 38 38 37 37 38 35 33 35 25 38 39 39 39 38 38 37 37 38 34 33 35 

26 38 39 39 39 38 38 37 37 38 34 33 35 27 38 39 39 39 38 38 37 37 38 34 33 35 28 38 39 39 39 38 38 37 37 38 34 33 35 29 38 39 39 39 38 38 37 37 38 34 33 35 30 38 39 39 39 38 37 37 38 34 33 35 31 38 39 39 38 - 37 34 33 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 1,186 39 38 38.3 2,350 November 1,157 39 38 38.6 2,290 December 1,209 39 39 39.0 2,400 

Calendar year 194/ 14,966 -45 38 41.0 29,680

January - 1,209 39 39 39.0 2,400 February 1,117 39 38 38.5 2,220 March 1,178 38 38 38.0 2,340 April 1,132 38 37 37.7 2,250 May 1,137 37 36 36.7 2,260 June 1,140 38 38 38.0 2,260 July 1,106 38 34 35.7 2,190 August 1,028 34 33 33.2 2,040 September 1,024 35 33 34.1 2,030 

Water year 1947-48 13,623 39 33 37.2 27.030 
351 

RIO GRANDE BASIN 

Devils River near Juno, Tex. 

wp 

waiter Baker ranch house, 2 miles upstream from Phillips Creek, and 13f miles southwest of Juno, Val Verde County. Datum of gage is 1,489.7 feet above mean sea level, 

datum of 1929 (Corps of Engineers bench mark). 

Drainage area.- 2,733 square miles. 

Records available.- May 1925 to September 1948. 

Average discharge.- 23 years, 196 second-feet. 

Extremes.- Maximum discharge during year, 240,000 second-feet July 4 (gage height, 26.80 

reet, from floodmark), by slope-area method; minimum, 38 second-feet May 1, 2, 4, 5. 

1925-48: Maximum discharge? 370,000 second-feet Sept. 1, 1932 (gage height, 33.8 

feet, revised, from floodmarks), by slope-area method; minimum, that of May 1, 2, 4, 

5, 1948. Remarks.- Records geod except those above 500 second-feet, which are poor. No diversion 

---ETEZVT station. 

Location.- Water-stage recorder, lat. 29°58', long. 101°09', 500 feet do stream from 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 53 56 54 54 53 52 49 40 78 94 85 

2 54 54 54 54 54 50 49 39 1: 75 94 83 

3 54 54 56 54 54 50 49 40 49 75 92 83 

4 56 54 56 54 54 50 49 39 48 96,200 92 82 

5 56 54 54 54 54 50 49 39 48 5,560 92 82 

6 56 54 56 54 54 50 40 46 1,330 92 80 

7 58 54 60 54 54 50 :: 40 46 697 90 80 

8 56 54 58 54 53 52 48 40 46 275 90 82 

9 56 54 56 54 54 52 48 40 46 200 89 174 

10 56 56 56 54 54 50 48 40 46 183 89 114 

11 56 54 56 54 54 49 48 65 46 g170 89 105 

12 56 54 56 54 54 49 48 84 46 g158 89 98 

13 58 56 56 54 54 49 52 164 46 g144 89 94 

14 58 56 58 54 53 49 48 76 45 136 87 92 

15 58 56 58 54 53 49 48 70 45 132 87 89 

16 58 56 56 54 52 49 46 66 45 124 87 87 

17 56 64 56 54 52 49 45 66 45 118 85 89 

18 58 58 56 53 52 49 45 64 45 114 85 89 

19 58 58 56 54 53 49 44 62 44 111 85 87 

20 56 56 56 54 52 49 44 60 45 109 85 87 

21 56 56 56 54 52 50 44 60 46 107 85 85 

22 56 58 56 54 52 49 45 59 46 107 85 85 

23 56 56 56 54 52 49 48 59 49 103 85 83 

24 56 56 56 54 52 49 46 59 63 101 85 83 

25 58 56 56 54 52 50 49 56 3,360 99 85 83 

26 59 56 56 54 54 50 45 54 828 98 85 82 

27 59 54 56 54 56 49 43 53 156 98 85 82 

28 59 54 56 54 52 49 41 53 101 96 85 82 

29 59 54 56 54 52 49 41 52 92 96 85 82 

30 58 54 56 54 49 41 52 83 94 85 80 

31 58 56 54 - 49 52 94 85 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 1,761 59 53 56.8 3,490 

November 1,666 64 54 55.5 3,300 

December 1,740 60 54 56.1 3,450 

Calendar year 1947 25,699 935 53 70.4 50,960 

January 1,673 54 53 54.0 3,320 . February 1,541 56 52 53.1 3,060 

March 1,538 52 49 49.6 3,050 

April 1,396 52 41 46.5 2,770 

May 1,783 164 39 57.5 3,540 

June 5,749 3,360 44 192 11,400 

July 107,082 96,200 75 3,454 212,400 

August 2,717 94 85 87.6 5,390 

September 2,689 174 80 89.6 5,330 

131,335 96,200 39 359 260,500 Water year 1947-48 

Peak discharge (base, SOO sec.-ft.).- June 25 (3 p.m. 11,600 sec.-ft.; July 4 (12 m.) 240,000 

sec.-ft. g Computed from graph based on gage readings.

Note.- No gage-height record July 4-10, Sept. 23-30; discharge computed on basis of slope-area 

deTeTianation for July 4, information by local residents, and recorded range in stage. 

Las Moras Springs at Brackettville, Tex. 

Location.- Staff gage, lat. 29°18', long. 100°25', in spring pool at Brackettville, Kinney 

County, a quarter of a mile upstream from bridge on Brackettville-Fort Clark road. 

Datum of gage is 1,095.0 feet above mean sea level (Texas Highway Department bench 

mark). 

Records available.- December 1895 to August 1938 (occasional miscellaneous discharge measurements), September 1988 to September 1948 (discharge measurements only). 

Extremes.- 1895-1948: Maximum discharge measured, 60 second-feet (by Prof. T. U. Taylor) 

June JO, 1899; minimum measured, 5.7 second-feet July 21, 1945. 

Remarks.- Discharge measurements represent total flow of springs. Springs issue from 

limestone in Balcones fault zone and respond to fainfall on Edwards Plateau. Elevation 

of spring pool is regulated by outlet gate which materially affects discharge. City of 

Brackettville diverts water from spring pool for domestic and recreational uses. 
352 RIO GRANDE BASIN 

Diacharge meaaurementa, in second-feet, of Las Moraa Springs at Brackettville, Tex., 

water year October 1947 to September 1948 

Discharge Discharge Discharge Date Date (sec.-ft.) Date (sec.-ft.) (aec.-ft.) 

Oct. 22 21.6 Feb. 20 13.5 June 14 9.72 

Nov. 24 16.5 Mar. 26 10.6 July 27 30.9 

Jan. 12 15.4 May 7 10.6 Aug. 31 11.9 

MIMBRES RIVER BASIN 

Mimbres River near Mimbres, N. Mex. 

Locations- Water-stage recorder and concrete control, lat. 32°521 20", long. 107°591 00", 

in NESWt sec. 33, T. 16 S., R. 11 W., a quarter of a mile downstream from Bear Canyon 

and lf miles northwest of Mimbres. 

Drainage area.- 183 square miles. 

Records available.- October 1930 to September 1948 In reports •f Geological Survey. May 

19111 to December 1931 in reports of State engineer. 

Average discharge.- 25 years (1921-24, 1926-48), 11.6 second-feet. 

Extremes.- Maximum discharge during year, 305 second-feet July 23 (gage height, 4.54 

feet; minimum daily, 1.6 second-feet Apr. 22. 

1930-48: Maximum discharge, 2,230 second-feet Aug. 19, 1944 (gage height, 5.54 

feet), from rating curve extended above 120 second-feet by logarithmic plotting; minimum daily, 0.9 second-foot July 22, 1947. 

Remarks.- Records fair. Flow partly regulated by Bear Canyon Reservoir (capacity, 700 

acre-feet). Diversions above station for irrigation. 

Discharge, in second-feet, water year October 1947 to September 1948 

Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 3.1 6.8 9.3 5.2 4.7 6.3 5.3 4.4 4.1 2.2 7.8 2.5 2 2.6 6.9 9.3 5.2 4.6 5.6 5.5 4.5 6.3 2.3 16 2.4 3 2.0 7.0 9.0 5.2 4.4 5.4 4.3 4.9 8.4 2.1 7.8 2.4 4 2.0 7.2 8.8 5.2 4.7 5.4 3.6 5.6 7.8 2.3 7.3 2.3 5 2.1 7.2 8.8 5.3 4.5 5.3 3.3 8.8 7.5 2.3 6.8 2.3 

6 2.2 7.4 8.8 5.3 3.6 5.2 2.2 8.0 7.3 2.3 5.6 2.2 7 2.1 7.5 8.3 5.2 3.6 5.2 2.2 7.4 6.8 2.3 5.2 2.2 8 2.0 7.5 8.6 5.2 3.6 5.1 2.6 7.5 7.0 2.3 5.4 2.1 9 2.0 7.6 8.6 5.2 3.6 4.9 3.0 7.3 7.3 2.3 4.0 2.2 10 1.9 7.6 8.3 5.2 3.9 4.8 3.0 8.0 7.2 2.3 2.1 2.3 

11 1.9 7.0 8.5 4.8 4.4 4./ S.8 8.8 7.5 5.3 3.1 2.3 12 1.9 7.8 8.3 3.6 4.5 4.7 3.0 9.3 7.8 2.3 3.2 2.3 13 1.9 7.8 8.3 3.0 4.5 4.7 2.8 8.8 6.8 2.3 3.2 2.0 14 2.0 7.6 8.0 3.1 4.6 4.6 2.6 9.3 4.5 2.4 3.1 1.9 15 2.0 7.5 7.4 3.2 4.6 5.2 2.6 9.0 3.7 2.4 3.1 1.9 

16 2.0 7.5 5.1 3.5 3.2 4.8 2.6 9.0 3.6 2.5 3.2 1.8 17 2.4 8.3 4.8 3.6 2.4 5.8 2.6 9.0 3.4 2.5 3.1 1.8 18 2.4 10 4.8 3.6 2.5 6.2 2.4 8.8 3.6 2.2 3.5 2.0 19 2.9 10 4.8 3.9 2.4 6.2 1.9 9.0 3.2 2.4 3.2 2.0 20 12 10 4.8 3.9 2.4 5.5 1.7 9.8 2.9 2.9 3.9 2.1 

21 9.2 10 5.0 3.7 2.3 4.4 1.8 10 2.5 3.0 4.8 2.1 22 2.4 10 5.0 3.6 2.2 4.2 1.6 9.8 2.6 3.6 4.2 2.3 23 2.4 9.8 5.1 3.4 2.2 4.3 1.8 10 2.4 18 4.1 2.4 24 2.7 9.8 5.0 3.1 2.5 4.3 1.9 10 2.5 9.3 3.7 2.5 25 2.7 9.8 5.0 3.4 4.6 4.7 2.3 9.8 2.1 9.4 3.1 2.6 

26 2.8 9.8 5.0 3.3 4.9 4.9 2.1 7.8 1.7 7.8 3.1 2.3 27 2.8 9.5 4.9 3.6 5.0 4.5 2.0 7.3 2.0 8.0 2.7 2.1 28 2.8 9.5 5.0 3.9 5.5 4.7 2.1 7.2 2.3 7.2 2.7 2.1 29 3.1 9.5 5.0 4.3 5.8 4.7 2.1 6.5 2.3 7.2 2.6 1.9 30 3.6 9.5 5.2 4.7 4.9 2.7 7.0 2.4 6.8 2.6 2.0 31 5.0 5.2 4.7- 5.1 5.6 16 2.5 -

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 92.9 12 1.9 3.00 184 November 254.0 10 6.8 8.47 504 Deoember 207.8 9.3 4.8 6.70 412 

Calendar year 1947 1,456.2 64 .9 3.99 2,890 

January 130.1 5.3 3.0 4.20 258 February 111.7 5.8 2.2 3.85 222 Maroh 156.3 6.3 4.2 5.04 310 April 80.4 5.5 1.6 2.68 159 May 248.2 10 4.4 8.01 492 June 139.2 8.4 1.7 4.64 276 July 143.2 18 2.1 4.62 284 August 137.7 16 2.5 4.44 273 September 65.3 2.6 1.8 2.18 130 

Water year 1947-48 1,766.8 . 18 1.6 4.83 3,500 

Peak discharge (base, 290 sec.-ft.).- July 23 (2:30 p.m.) 305 sec.-ft. 
		

		

		

		

		

		

		

		

353 MIMBRES RIVER BASIN 

Mimbres River near Faywood, N. Mex. 

Location.- Water-stage recorder, lat. 32°35.10", long. 107°55.10n , in NWt sec. 7, T. 

ZU 6., R. 10 W., 6 miles northeast of Faywood Hot Springs, 10 miles northeast of 

Faywood, and 12 miles upstream from San Vicente Arroyo. 

Drainage area.- 485 square miles. 

Records available.- April 1908 to December 1914 and October 1930 to September 1948 in 

reports or Geological Survey. April 1908 to December 1931 in reports of State engineer. 

Average discharge.- 32 years (1908-10, 1912-17, 1919-24, 1926-27, 1929-48), 20.2 secondfeet. 

Fxtremes.- Maximum discharge during year, 744 second-feet July 23 (gage height, 3.38 

feet); no flow at times. 

1930-48: Maximum discharge not determined; maximum gage height, 11.0 feet Aug. 4, 

1939, present datum; no flow at times. 

Remarks.- Records fair. Diversions above station for irrigation. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. MaY June July Aug. Sept. 

1 0.7 0.3 0.1 0.3 0 3.6 1.6 1.5 1.3 0.5 16 0 

2 

3 .6 

.6 .3 

.3 .1 

.1 .2 

0 

0 

0 

4.1 

4.1 1.6 1.5 1.5 

1.5 3.3 

13 .4 

.3 a3 

al 0 0 

4 .6 .2 .1 0 0 4.1 1.5 1.6 1.8 .1 0 0 

5 .6 .2 .1 0 0 3.1 1.6 1.6 .8 0 0 

6 .6 .3 .1 0 0 3.1 1.6 1.6 .7 0 0 0 

7 

8 a.6 

a.6 .3 

.4 .1 0 0 

0 

0 

0 

2.7 

2.3 1.6 

1.6 1.6 

1.6 .6 36 9.5 

1.8 0 

0 

0 

.8 9 a.5 .4 0 0 0 2.0 1.6 1.6 8.7 .4 0 0 

10 .5 .3 0 0 0 2.3 1.8 1.6 2.7 .3 0 0 

11 .6 .3 0 0 0 2.1 1.6 1.6 2.3 .2 .1 0 

12 .6 .3 0 0 0 2.0 1.6 1.6 2.1 .2 0 0 

13 .6 .3 0 0 2.1 1.6 1.6 1.8 .3 0 0 

14 .5 .2 0 0 2.1 1.6 1.3 1.0 .3 0 0 

15 .5 .2 0 0 2.1 1.5 1.2 .9 .3 0 0 

16 .5 .2 0 0 0 2.0 1.6 1.2 .9 .2 0 

17 

18 .5 

.5 .3 

.3 0 

0 

0 

0 

0 

0 

2.0 

2.0 1.8 

1.3 1.3 

1.3 .9 .9 .3 

.2 0 

0 3.0 

.3 19 .5 .2 0 0 0 2.0 1.2 1.3 .9 .3 0 30 

20 .4 .2 0 0 0 1.8 1.3 1.2 1.0 .4 0 1.5 

21 .4 .2 0 0 0 1.8 1.8 1.2 .8 .3 0 

22 .4 .2 0 0 0 2.0 1.6 1.0 .8 .5 0 0 

23 .4 .2 0 0 0 2.7 1.6 1.0 .8 62 0 0 

24 .4 .2 0 0 0 2.5 1.5 1.0 .8 26 0 0 

25 .4 .1 0 0 .5 2.1 1.5 1.2 .7 7.2 C 0 

26 .3 .2 0 0 1.8 2.1 1.5 1.2 .7 12 0 0 

27 .4 .2 0 0 3.4 2.3 1.3 1.0 .7 36 0 0 

28 .4 .1 0 0 3.4 2.3 1.3 .9 .7 8.0 0 0 29 .4 .2 0 0 2.9 2.0 1.3 .9 .7 .3 0 0 30 .4 .1 .2 0 2.0 1.5 1.0 .5 0 0 0 

31 .4 .4 0 2.1 - 1.0 25 0 

Month Secondfoot-days Maximum Minimum Mean Runoff in 

acre-feat 

October 15.4 0.7 0.3 0.50 31 November 7.2 .4 .1 .24 14 December 1.5 .4 0 .05 3.0 

Calendar year 1947 1,609.5 304 4.41 3,190 

January 

February 

March 

.5 12.0 

75.5 

.3 

3.4 

4.1 

0 

0 

1.8 

.02 

.41 

2.44 

1.0 

24 

150 

April 

May 

June 

46.0 

40.7 

88.8 

1.8 

1.6 

36 

1.2 

.9 

.5 

1.53 

1.31 

2.96 

91 

81 

176 

July 

August 

September 

193.4 

20.1 

35.6 

62 

16 

30 

0 

0 

0 

6.24 

.65 

1.19 

384 

40 

71 

Water year 1947-48 536.7 62 0 1.47 1,070 

Peak discharge (base,800 sec.-ft.).- No peak above base. 

a No gage-heightrecord; discharge computed on basis of recorder trace, weather records, and records for station near Mimbres. 
354 MIMBRES RIVER BASIN 

Bear Canyon near Mimbres, N. Mex. 

Location.- Water-stage recorder and concrete Parshall flume, lat. 32°52'50", long. 

1U7'591 20", in SlitSWi sec. 28 (revised), T. 16 S., R. 11 W., 100 feet downstream from 

bridge on State Highway 167, 200 feet downstream from Bear Canyon Dam, and 2 miles 

northwest of Mimbres. 

Records available.- October 1937 to September 1948. 

Average discharge.- 11 years, 0.89 second-foot. 

Extremes (regulated).- Maximum daily discharge during year, 9.8 second-feet May 6; 

no flow on many days. 

1937-48: Maximum discharge, 76 second-feet Sept. 29, 1941 (gage height, 2.88 

feet), from rating curve extended above 21 second-feet by logarithmic plotting; no 

flow for long periods. 

Remarks.- Records good. Flow regulated by Bear Canyon Reservoir (capacity, 700 acrefeet). One small diversion above station for irrigation. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 

2 

3 

4 

5 

0 

0 

0 

0 

0 

0.6 

.6 

.6 

.6 

.6 

3.3 

3.3 

3.2 

3.1 

3.1 

0.2 

.1 

.1 

.1 

.1 

0.1 

' .2 .1 

.1 

.1 

0 

0 

.1 

0 

.1 

0 

0 

0 

0 

6.7 

0.3 

.3 

.2 

.2 

.2 

0.1 

0 

0 

0 

0 

7 

8 

10 

0 

0 

0 

0 

0 

.6 

.6 

.6 

.6 

.6 

3.1 

3.1 

3.1 

3.0 

3.0 

.1 

.1 

.1 

.1 

.2 

.1 

.1 

0 

0 

0 

0 

0 

0 

0 

0 

9.8 

9.0 

8.5 

8.4 

8.2 

.1 

.1 

.1 

.1 

.1 

0 

.1 

.1 

.1 

0 

11 

12 

13 

14 

15 

0 

0 

0 

0 

.6 

.6 

.6 

.6 

.6 

3.0 

3.0 

2.9 

2.8 

2.4 

.2 

.1 

.1 

.1 

.2 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

8.1 

8.1 

7.6 

6.8 

6.6 

0 

.1 

.1 

.1 

.1 

0 

.1 

.1 

.1 

0 

16 

17 

18 

19 

20 

0 

0 

0 

6.6 

.6 

2.0 

3.9 

4.0 

3.9 

.3 

.2 

.1 

.1 

.1 

.2 

.2 

.1 

.1 

.1 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

6.3 

6.1 

5.8 

4.8 

4.0 

.1 

.1 

.1 

.1 

.1 

0 

.1 

.1 

.1 

.1 

21 

22 

23 

24 

25 

5.6 

.4 

.4 

.4 

.4 

3.7 

3.7 

3.7 

3.7 

3.7 

.1 

.1 

.1 

.1 

.1 

.1 

.1 

.1 

.1 

.1 

0 

0 

0 

0 

0 

0 

0 

0 

0 

4.0 

4.0 

3.7 

3.0 

2.0 

.1 

0 

.1 

.1 

0 

.1 

.2 

26 

27 

28 

29 

30 

31 

.4 

.5 

.6 

.6 

.6 

.6 

3.6 

3.4 

3.4 

3.4 

3.3 

.1 

.1 

.1 

.1 

.1 

.1 

.1 

.1 

.1 

.1 

.1 

.1 

0 

0 

0 

0 

0 

0 

0 

0 

0 

.3 

.3 

.3 

.3 

.4 

.4 

. 1 

.1 

.1 

.1 

.1 

0 

0 

0 

0 

0 

.1 

Month Secondfoot-days Maximum Minimum Mean Runoff In 

acre-feet 

October 

November 

December 

17.1 

59.0 

47.3 

6.6 

4.0 

3.3 

0 

.6 

.1 

0.55 

1.97 

1.53 

34 

117 

94 

Calendar year 1947 123.4 6.6 0 .34 245 

January 

February 

March 

April 

May 

June 

July 

August 

September 

3.7 

.8 

.2 

0 

133.5 3.4 

1.9 

0 

0 

.2 

.2 

.1 

0 

9.8 

.3 

.2 

0 

0 

1 o 

0 

0 

0 

0 

0 

0 

.12 

.03 

.01 

0 

4.31 

.11 

.06 

0 

0 

7.3 

1.6 

.40 

0 

265 6.7 

3.8 

0 

0 

Water year 1947-48 266.9 9.8 0 .73 530 
3n5 

TULAROSA VALLEY BASIN 

Rio Tularosa near Bent, N. Mex. 

Location.- Water-stage recorder and concrete control, lat. 33°08'45", long. 105°53'50" hINW.! sec. 32, T. 13 S., R. 11 E., 50 feet downstream from bridge on U. S. Highway 70, 3 miles west of Bent, and 8.5 miles northeast of Tularosa. 

Records available.- December 1947 to September 1948. 

Extremes.- Maximum gage height during period, 1.88 feet Aug. 3 (discharge not determined), minimum daily discharge, 4.6 second-feet July 13. 

Remarks.- Records good except those for periods of ice effect and those above 20 second-

/eet, which are poor. Diversions above station for irrigation. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 b13 13 15 14 11 13 14 14 9.3 2 13 14 15 13 8.1 17 14 13 8.7 3 13 15 16 13 8.1 19 14 18 9.3 4 13 15 16 12 11 16 14 14 9.3 5 13 16 16 12 13 16 16 13 6.5 

6 13 15 15 11 13 15 13 13 7.0 14 14 15 14 13 15 13 13 8.7 7 14 14 15 14 13 15 13 11 11 9 15 14 15 13 13 14 12 11 11 10 15 14 15 14 10 14 12 8., 11 

11 15 14 13 13 9.3 13 7.5 13 10 12 15 b14 13 11 9.3 14 5.0 13 10 13 15 b14 14 11 9.3 11 4.6 16 8.7 14 15 14 14 11 9.3 9.3 11 13 9.3 15 15 14 13 11 8.7 9.3 11 14 8.1 

16 16 15 14 11 7.5 13 12 13 11 17 16 14 14 10 8.1 13 13 13 8.1 18 16 14 14 7.0 11 13 13 13 8.7 19 16 13 13 7.5 14 13 11 11 7.0 20 16 13 13 9.3 14 13 11 11 7.0 

21 *16 13 13 14 14 11 11 11 6.0 22 16 13 13 15 14 11 10 8.7 11 23 13 15 13 12 14 14 9.3 11 8.7 11 24 13 14 •13 12 14 11 9.3 12 8.1 11 25 13 14 15 12 14 10 10 6.5 11 12 

26 13 14 16 13 12 12 9.3 6.0 11 12 27 *13 b12 16 14 11 12 6.0 8.1 10 11 28 13 b12 15 15 11 11 5.0 12 11 11 29 13 12 14 15 8.7 12 7.5 11 11 11 30 13 12 14 11 8.7 13 11 11 11 31 13 11 14 11 13 11 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 

November 

December 23-31 117 13 13 13.0 232 

Calendar year 

January 439 16 11 14.2 871 February 411 16 13 14.2 815 March 435 16 12 14.0 863 April 356.5 15 7.0 11.9 707 

May 343.4 14 7.5 11.1 6e1 June 367 19 5.0 12.2 728 

July 345., 16 4.6 11.2 686 

August 371.2 18 8.1 12.0 736 

September 286.7 12 6.0 9.56 569 

The period 6,890 

Peak discharge (base, 300 sec.-ft. .- Discharge not determined. Winter discharge measurement ma e on this day. b Stage-discharge relation affected by ice. 
356 TULAROSA VALLEY BASIN

Rio Tularosa near Tularosa, N. Mex. 

Location.- Water-stage recorder and concrete control, lat. 33805,35", long. 105°58,35", 

in SEII.SEI sec. 16, T. 14 S., R. 10 E., 200 feet upstream from diversion dam for Tularosa Community ditch and 3 miles northeast of Tularosa. 

Records available.- December 1912 to December 1914 and October 1931 to December 1947 (discontinued) in reports of Geological Survey. December 1912 to December 1914 and October 

1916 to July 1917 in reports of State engineer. 

Average discharge.- 14 years (1932-37, 1938-47), 14.6 second-feet. 

Extremes.- Maximum discharge during period October to December, 448 second-feet Oct. 13 

(gage height, 1.86 feet), from rating curve extended above 23 second-feet on basis of 

slope-area determinations at gage heights 3.4 and 8.5 feet; minimum daily, 9.3 secondfeet Oct 9 

1913-47: Maximum discharge, 9,640 second-feet Sept. 3, 1938 (gage height, 8.50 

feet, from floodmarksl, by slope-area method; minimum daily, 1 second-foot July 31, 

Aug. 1, 1934. 

Remarks.- Records good except those for periods of no gage-height record, which are pocr. 

Diversions above station for irrigation. 

Discharge, in second-feet, water year October 1947 to September 1948 

Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 

1 12 13 15 2 12 13 16 3 12 11 18 4 12 12 17 5 11 11 17 

6 10 11 17 7 10 12 17 8 10 13 17 9 9.3 13 17 10 10 13 16 

11 12 13 17 12 12 13 14 13 29 14 14 14 a17 16 15 15 a16 14 14 

16 a15 15 16 17 a14 16 14 18 814 15 13 19 a14 14 14 20 814 15 13 

21 a14 15 13 22 a14 14 13 23 14 15 13 24 14 15 013 25 14 14 a13 

26 13 13 all 27 12 14 813 28 13 15 813 29 12 11 a13 30 12 15 a13 31 12 - a13 

Second- Runoff in Month Maximum Minimum Mean foot-days acre-feet 

October 409.3 29 9.3 13.2 812 November 412 16 11 13.7 817 December 454 18 18 14.6 900 

Calendar year 1947 5,083.2 92 4.3 13.9 10,080 

Peak discharge (base, 300 sec.-ft.).- Oct. 13 (5:30 p.m.) 448 sec.-ft. 

a No gage-height record; discharge computed on basis of weather records, available trace, and December records for station near Bent. 
	

357 TULAROSA VALLEY BASIN 

Alamogordo-La Luz ditch at La Luz, N. Mex. 

Location.- Water-stage recorder and concrete Parshall flume, lat. 32°58,50", long. iVP'bb,15", in SW. sec. 25, T. 15 S., R. 10 E., a quarter of a mile upstream from La 

Luz and half a mile downstream from head gate. 

Records available.- October 1934 to September 1948. 

Average discharge.- 14 years, 6.81 second-feet. 

Extremes.- Maximum daily discharge during year, 11 second-feet Feb. 5; minimum daily, 0.6 

second-foot July 21. 

1934-48: Maximum daily discharge, 22 second-feet Feb. 2, 3, 5-13, 1942; no flow at times. 

Remarks.- Records fair. Ditch diverts water from left bank of Rio La Luz for irrigation. 

Monthly discharge, in second-feet, water year October 1947 to September 1948 

Runoff in Month Maximum Minimum Mean acre-feet 

October 6.0 4.1 4.61 283 November 7.6 3.7 5.93 353 December 9.4 6.6 7.15 440 

Calendar year 1947., 11 1.9 5.72 4,140 _ . 

January 8.1 6.0 7.08 435 February 11 5.9 7.38 425 March 8.1 6.3 7.05 434 April 6.8 3.8 5.30 315 May 4.7 2.2 3.43 211 

June 6.7 2.6 3.58 213 

July 3.5 .6 2.19 135 

August 7.8 3.3 4.42 272 

September 3.9 2.5 2.99 178 

Water year 1947-48 11 .6 5.09 3,690 

Alamogordo water supply near Alamogordo, N. Mex. 

Location.- Water-stage recorder and rectangular contracted weir, lat. 32°52,25", long. 

105°55'40", in NWt sec. 33, T. 16 S., R. 10 E., at lower end of pipe line, about 1 mile 

downstream from Alamo Canyon and 2 miles southeast of Alamogordo. 

Records available.- October 1932 to September 1948. 

Average discharge.- 16 years, 1.84 second-feet. 

Extremes.- Maximum daily discharge during year, 1.9 second-feet Apr. 23; minimum daily, 

U.6 second-foot Aug. 8. 

1932-48: Maximum daily discharge, 4.2 second-feet Sept. 15, 1942; no flow July 7. 

1933, Sept. 29, 1941. 

Remarks.- Records good. 

Monthly discharge, in second-feet, water year October 1947 to September 1948 

Runoff in Month Maximum Minimum Mean acre-feet 

October 1.1 1.1 1.10 68 

November .. 1.6 1.0 1.21 72 

December 1.3 1.0 1.16 71 

Calendar year 1947 1.6 1.0 1.28 928 

January 1.2 1.1 1.15 70 

February 1.2 1.1 1.10 63 

March 1.2 1.1 1.13 69 

April 1.9 1.2 1.55 92 

May 1.6 1.3 1.42 87 

June 1.4 1.1 1.31 78 

July 1.5 1.2 1.37 84 

August , 1.4 .6 1.32 81 

September 1.4 1.0 1.20 71 

Water year 1947-48 1.9 .6 1.25 906 
					

		

						

		

		

		

		

		

		

		

		

		

		

		

		

		

358 MISCELLANEOUS DISCHARGE MEASUREMENTS 

Yeasurements of stream flow in the western Gulf of Mexico basins made at points 

otter than gagIng stations are given in the following table: 

Miscellaneous discharge measurements In the western Gulf of Mexico basins during water year 

October 1947 to September 1948 

Mermentau River Basin 

Date Stream Tributary to or 

diverting from-- Locality Discharge (sec.-ft.) 

Nov. 18 Bayou Plaquemine Bayou des Cannes... In NWiSlit, sec. 29, T. 9 S., R. 1 E. 509 

Brule. Louisiana meridian, at bridge on 

State Highway 370, 1} miles northwest of Crowley, La. 

Dec. 23 ....do ....do 82.5 

Jan. 22 ....do ....do ....do 338 

Feb. 26 ....do ....do 2,380 

Apr. 28 

July 27 

....do 

....do 

....do 

....do 

. 4,080 78.7 

Sept. 9 ....do ....do ....do 111 

Nov. 17 Bayou Queue de Mermentau River.... In lot 39, T. 10 S.. R. 1 E. 67.3 

Tortue. Louisiana meridian, at bridge on 

Pariah road 2? miles below Indian 

Bayou and 2} miles south of Ebenezer, La. 

Dec.16 ....do ....do ....do 769 

July 7 ....do Se... 19, T. 11 S., R. 1 W. Louisiana 75.3 

meridian, at bridge on State Highway 128, 100 feet below Southern 

Pacific R. R. bridge and half a 

mile northeast of Riceville. La. 

Sept. 8 ....do ....do 101 

Sabine River Basin 

Oct. 30 Little Cow Creek Sabine River At bridge on State Highway 87, above 48.9 

McGraw Creek and } mile south of 

Burkeville. Tex. 

Jan. 15 ....do .do 60.8 

Feb. 18 ....do ....do .do 59.8 

Mar. 17 ....do .do 56.2 

Apr. 28 ....do .do 46.3 

May 19 ....do .do 39.8 

June 23 ....do .do 38.3 

July 22 ....do ....do .do a35.7 

Aug. 23 ....do ....d.. .do e27.7 

Sept.22 ....do .do 31.5 

Oct. 30 McGraw Creek Little Cow Creek... 1 mile above mouth and 2 miles south- 24.9 east of Burkeville, Tex. 

Jan. 15 ....do .do 30.4 

Feb. 18 ....do ....do .do 34.8 

Mar. 17 ....do ....do .do 33.4 

Apr. 28 ....do .do 25.3 

May 19 ....do .do 21.5 

June 23 ....do .do 16.4 

July 22 ....do ....do .do a18.4 

Aug. 23 ....do ....do .do a13.3 

Sept.22 ....do .do 14.5 Oct. 30 Quicksand Creek.... Sabine River At U. S. Highway 190, 0.7 mile above 22.9 mouth and li miles east of Bon Wier, 

Tex. 

Dec. 4 ....do .do 32.6 Jan. 16 ....do .do b82.1 

Mar. 17 ....do ....do .do b70.1 Apr. 28 ....do .do 38.2 June 22 ....do ....do 23.1 July 22 ....do ....do .do a22.4 

Aug. 24 ....do ....do .do 16.1 Sept.22 ....do .do 16.8 

a Discharge is spring flow. 

b Backwater from Sabine River. 

Neches River Basin 

June 23 Flat Creek Neches River Lat. 32°03.35", long. 95°24'08", 7.30 

10.15 miles northwest of Jacksonville, Cherokee County, Tex. 

Aug. 6 .do .do .do 2.92 

24 .do .do .do 1.80 

Sept.29 .do .do .do 1.63 

30 Box Creek .do Lat. 31°38.05", long. 95°14'05", at 0 bridge on State Highway 294, 9.2 

miles west of Alto, Cherokee 

County, Tex. 

30 Bowles Creek .do Lat. 31°38'35", long. 95°07'45", at 0 bridge on State Highway 294, 

3 miles west of Alto, Cherokee 

County, Tex. 

30 White Oak Creek.... Bowles Creek Lat. 31°38'00", long. 95°10.15", at 5.5 bridge on State Highway 294. 5.5 

miles west of Alto, Cherokee 

County, Tex. 

30 Larrison Creek Neches River Lat. 31°36. 15", long. 95°02'40", 3.7 0 miles south southeast of Alto, 

Cherokee County, Tex. 

29 Bodano Bayou .do Lat. 31°26'45", long. 95°50'45", 10 0 miles northwest of Lufkin, 

Angelina County, Tex. ........-
			

		

		 		

		

		

		

			

					

				

				

			

			

				

				

				

			

		

			

			

				

		

		

		

		

		

		

				

MISCELLANEOUS DISCHARGE MEASUREMENTS 359 

Miscellaneous discharge measurements in the western Gulf of Mexico basins during water year October 1547.to September 1b48--Continued 

Neches River Basin--Continued 

Tributary to or Discharge diverting from-- (sec.-ft.) Date Stream Locality 

Sept.24 Buck Creek Neches River Lat. 31°16'45", long. 94°36'55", 75 0 miles southeast of Lufkin, Ange- lina County. Tex. 24 Belaxy Creek Buck Creek Lat. 31°18'10", long. 94°39'50",4i 0 miles southeast of Lufkin. Ange- lina County, Tex. 24 Shawnee Creek Neches River Lat. 31°13'15", long. 94°32'00", 13t 0 miles southeast of Lufkin, Ange- lina County. Tex. 24 Sandy Creek Shawnee Creek Let. 31°08'55", long. 94°26'05", at 0 Zavalla, Angelina County, Tex. Dec. 1 Prairie Creek Mud Creek Let. 32°18'35", long. 95.10'25", at proposed dam site,2 miles up- 17.0 stream from mouth (confluence with 

Mud Creek) and 3 miles southeast 

of Whitehouse, Smith County, Tex. Aug. 27 Angelina River Neches River Lat. 31°26', long. 94'35', at Old 33.7 Saline, Angelina County, Tex., 5.9 

miles downstream from Mill Creek. Sept.24 Caney Creek Angelina River Let. 31°07'40". long. 94°16'05". 0 103 miles southeast of Zavalla, 

Angelina County, Tex. 24 Sandy Creek ....do Let. 31°06'15", long. 94°12'45". 14 0 miles southeast of Zavalla, Ange- lina County, Tex. 24 Parker Creek Sandy Creek Lat. 31.'05'45", long. 94"12'30", 15 0 miles southeast of Zavalla, Ange- lina County, Tex. 

Trinity River Basin 

Sept.30 Mack Creek Trinity River Let. 31°39'50", long. 95°44'30", *0.2 9 miles west of Elkhart, Anderson 

County, Tex. 30 Crooked Creek ....do Let. 31°39'25", long. 95.'42'25", 7.7 .1.0 miles west of Elkhart, Anderson 

County, Tex. 30 Masons Creek ..do Let. 31°38'00", long. 95°38'00", 3.3 0 miles west of Elkhart, Anderson 

County, Tex. 30 Cedar Creek Masons Creek Lat. 31'38'55", long. 95°39'45", 5.1 0 miles west of Elkhart, Anderson 

County. Tex. 

•Field estimate. 

Oyster Creek Basin 

Sept. 2 Oyster Creek Gulf of Mexico Lat. 29°15', long. 95°30', 25 miles c0 west of Chenango, Brazoria County, 

Tex. 2 ....do ....do ....do 331.3 Oct. 9 American Canal Co.'s canal Oyster Creek Lat. 29°36'20", long. 95°34'55", at 131 county bridge 0.1 mile below 

second lift pump plant and 15 miles southwest of Stafford, Port 

Bend County, Tex. Aug. 26 ....do ....do ....do e315 

c Measurement made about 5 mile upstream from Harris Reservoir. 

d Measurement made about 1 mile downstream from release to Oyster Creek from Harris Reservoir. 

e Total flow in canal. All three pumps pumping. 

Brazos River Basin 

p.m., onAug. , . f No f ow before 10 a.m. or after 

Aug. 17 Brazos River Oulf of Mexico A short distance below South Texas Water Co.'s pumping plant, 33 miles 

west of Juliff, Tex. 

0 

25 ....do .do .do f25.0 Nov. 13 .do .do At Dow Chemical Pump Plant. Lat. 29°15'30", long. 95'33'41", 7 miles west of Chenango, Brezoria County, Tex. 

128 

Aug. 25 24 .do Leon River ....do 

Little River ..do Let. 31°06'37", long. 97'29'20", about 6 miles above U. S. Highway 81 crossing above Belton, Bell 

0 

..3 

24 Cowhouse Creek Leon River County, Tex. Lat. 31.08'48", long. 97°32'00", about 7.5 miles northwest of 0 

26 Salado Creek Lampasas River Belton, Bell County, Tex. Lat. 30°55'18", long. 97°35'34", above all springs about 4.5 miles 0 

26 .do ....do above Salado, Bell County, Tex. Lat. 30°56'37", long. 97°32'06", 4.19 

26 

26 

26 

26 

26 

Salado Springs Spring No. 1. Spring No. 2 Spring No. 3 Spring No. 4 Spring No. 5 

Lampasas River 

.do 

.do 

.do 

.do 

above spring No. 1 at Salado, Bell County, Tex. Lat. 30°56'37", long. 97'32'06", at Salado, Bell County, Tex. do 

.do 

.do 

.do 

.98 

5.55 *1.66 

•.23 

1.14 

•Field estimate. -, .nAn s.....-4....r.A ,,,,tflnla nt nonk about. 

25 second-feet. 

905771 0 - 50 - 24 
		

				

				

					

			

		

				

				

	 	

					

			

	 	

			

				

						

					

				

				

				

			

				

				

			

			

360 MISCELLANEOUS DISCHARGE MEASUREMENTS 

Miscellaneous discharge measurements in the western Gulf of Mexico baiins during water year October 1547 to September 1548--Continued 

Brazos River Basin--Continued 

Tributary to or Discharge Date Stream Locality diverting from-- (sec.-ft.) 

Aug. 26 Salado Creek Lampasas River Below springs Nos. 1 to 5 and 2,000 10.6 feet below U. S. Highway 81. 24 South San Gabriel San Gabriel River Lat. 30°38'34", long. 97°40'38", at ..10 River. U. S. Highway 81 crossing, about i mile above confluence with North 

San Gabriel River, at Georgetown, 

Williamson County, Tex. 24 North San Gabriel ....do Lat. 30°38'41", long. 97°40'38", at 0 River. U. S. Highway 81 crossing. About i mile above confluence with South 

San Gabriel River, at Georgetown, 

Williamson County, Tex. 24 Berry Creek Lat. 30°42'10", long. 97°39'57", 0 about 4 miles north of Georgetown, 

Williamson County, Tex. 24 Brushy Creek ....do Lat. 30°30'46", long. 97°40'50", at 0 U. S. Highway 81 crossing, at Roundrock, Williamson County, Tex. Sept.22 New Year Creek Brazos River Lat. 30°15', long. 96°13', 2.8 miles .1.2 northeast of Chapel Hill, Washing- ton County, Tex. 22 Piney Creek Lat. 29°57', long. 96°10', 5 miles .1.2 east of Bellville, Austin County, 

Tex. 22 Mill Creek Lat. 29°53', long. 96°12', 5.5 miles .3.0 southeast of Bellville, Austin 

County, Tex. Aug. 17 Briscoe Irrigation ....do Lat. 29°30', long. 95°33', at bridge g304 Co.'s canal. over canal 4,500 feet below pump 

plant, and about 4 miles east of 

Thompsons, Tex. 25 ....do ....do ....do g150 Sept.14 ....do ....do .,..do 0 Aug. 17 South Texas Water Brazos River 3} miles west of Juliff, Tex 160 Co.'s canal. 25 ....do ....do ....do 325 Sept.14 ....do ....do 0 

•Field estimate. g Total flow of canal. 

Colorado River Basin 

Apr. 1 South Concho River. Concho River Lat. 31.08', long. 100°30', 3.9 miles h5.07 south of Christoval on William Anson 

Ranch Tom Green County, Tex. 1 17 ....do ....do Lat. 31 21', long. 100°28', 2.4 miles 5.42 above Lake Naaworthy dam, near San 

Angelo, Tom Green County, Tex. 1 Cave Springs South Concho River Lat. 31°06', long. 100.25', in cave 0 on Cave Springs F(anch, 7.3 miles 

southwest of Christoval, Tom Green 

County, Tex. 1 McCarthy Spring.... ....do Lat. 31°08', long. 100°29', at source, 0 3.6 miles south of Christoval, Tom Green County, Tex. 2 Pecan Springs Pecan Creek Lat. 31°14', long. 100°25', 5.3 miles .23 northeast of Christoval, on Jake 

Johnson Ranch, Tom Green County,Tex Mar. 30 Spring Creek Middle Concho River Lat. 31°13'45", long. 100°49', f mile 8.54 below springs and 2.5 miles south of 

Mertzon, Irion County, Tex. Apr. 2 Lipan Springs Lipan Creek Lat. 31°15', long. 100°15', 7.8 miles .14 southwest of Vancourt, on Dick Marin 

Ranch, Tom Green County, Tex. 8 San Saba River Colorado River Lat. 30.50', long. 100°05', 0.9 mile 11.1 (main springs), northeast of Ft. McKavett, Menard County, Tex. 6 Clear Creek San Saba River 7.5 miles west of Menard, Menard 15.2 County, Tex. 

h No flow In South Concho River above springs. 

Guadalupe River Basin 

June 17 Medina River San Antonio River.. 500 feet below weir above reservoir, 3.52 near Bandera, Tex., at site 

Apr. 16 ....do .do 

of former gaging station, Medina 

River near Pipe Creek. 2,000 feet below diversion dam, near Riomedina, Tex. 16.6 

Sept.30 

June 16 .do .do .do 

.do .do Lat. 29°16', long. 98°30', first road crossing above Casein, Hexer 

1.80 

3.88 

16 

16 

Cibolo Creek 

..do 

.do 

.do 

County, Tex. Lat. 29°33'05", long. 98°16'20", at Schertz, Guadalupe County, Tex. Lat. 29°32'30", long. 98'15'30", near Schertz, Guadalupe County, 

Tex. 

0 

1.48 

16 ....do .do Lat. 29°33'05", long. 98°13'45", about 1 mile south of Cibolo, 

Guadalupe County, Tex. 

1.20 
		

				

		

	 	

		

		

		

		

		

		

		 			

						

		

		

		

			

		

		

			

		

		

		

			

					

		

		

MISCELLANEOUS DISCHARGE MEASUREMENTS 361 

Miscellaneous discharge measurements in the western Gulf of Mexico basins during water year 

October 1947 to September 1948--Continued 

Guadalupe River Basin--Continued 

Tributary to or Discharge Date Stream Locality diverting from-- (sec.-ft.) 

Oct. 16 Hueco Springs Guadalupe River.... Lat. 29°45'35", long. 98°08'25*, 3.8 113.3 miles north of New Braunfels, Tex. Nov. 22 ....do ....do ....do 110.1 Dec. 18 ....do ....do ....do 18.72 Jan. 22 ....do ....do ....do 16.62 Feb. 26 ....do ....do 15.83 Apr. 1 ....do ....do 14.23 May 6 ....do ....do ....do 13.93 June 10 ....do ....do ....do, 15.09 July 22 ....do do do 12.84 Aug. 26 ....do ....do ....do 11.22 Sept.30 ....do ....do ....do 0 Oct. 18 San Marcos Springs ,...do At San Marcos, Tex 126 (San Marcos 

River). • 

Nov. 24 ....do ....do ....do 143 Dec. 20 ....do ....do ....do 128 Jan. 24 ....do ....do 134 Feb. 28 ....do ....do 115 Apr. 7 ....do ....do ....do 112 May 8 ....do ....do ....do 94.2 June 12 ....do ....do ....do 83.4 July 24 ....do ....do 101 

Aug. 27 ....do ....do ....do 103 

1 Flow of West Springs only, no flow In East Springs. 

Nueces River Basin 

Oct. 23 Frio River iNueces River Near Texas & New Orleans R. R. bridge, JO 

0.6 mile above Dry Frio and 10 miles 

northeast of Uvalde, Tex. 

j Observations of no flow also made on following dates: Nov. 21, Jan. 13, Feb. 22, Mar. 27, 

May 9, June 11, July 29, Sept. 2. 

Rio Grande Basin 

Oct. 16 Santa Fe Creek Rio Grande Lat. 35°41', long. 105°50', in sec. 

24, T. 17 N., R. 10 E., above 

McClure Reservoir, 6} miles east 

of Santa Fe, N. Mex. 30 ....do .do do 

Nov. 11 .do .do .do Jan. 11 .do .do .do 

Apr. 27 .do .do .do 

May 10 .do .do .do 

24 .do .do .do June 7 .do .do .do 

22 .do ....do .do 

July 15 .do ....do .do 

27 .do .do .do 

Aug. 10 .do .do .do 

25 ....do ....do .do 

Sept. 9 .do .do .do 

23 .do ....do .do 

May 31 Bernardo Interior .do Lat. 34°24'55", long. 106°49'15", ln 

drain. NEi sec. 10, T. 2 N., R. 1 E., at 

bridge on U. S. Highway 60, ? mile 

east of Bernardo and It miles west 

of gaging station on Rio Grande. 

June 7 .do .do .do 

14 .do .do .do 

21 .do .do .do 

28 .do .do .do 

fuly 6 .do do .do 

12 .do do .do 

26 .do do .do 

lug. 13 .do do .do 

Sept. 8 .do do do 

17 .do do. .do 

24 ....do do .do 

24 .do do .do 

lay 29 San Francisco .do Lat. 34°25', long. 106°48', in NEi 

Riverside drain. sec. 11, T. 2 N., R. 1 E., on downstream side of bridge on U. S. Highway 60, 2 miles east of Bernardo 

and 3} miles above mouth. 

31 .do .do .do 

rune 5 .do .do .do 

7 .do .do .do 

14 .do .do .do 

21 .do .do .do 

28 .do .do .do 

uly 5 .do .do .do 

6 .do ....do .do 

12 .do .do .do 

16 .do .do do 

20 .do .do .do 

24 .do .do .do 

26 .do .do do 

30 .do .do .do 

Aug. 3 .do .do do 

10 .do .do do 

r!,,vvvr 

9 O P J(P P ~Om ODN00 0 000 ONNOIN A.AJW pD 

§0FA 1 4: \ NCA N 

......... 

.. .. .. .. .... MO) N 

V' ° K8g422P

,, ei nn8.°!t

"'"41,tt 
				

						

		

					

					

		

		

		

	 		

		

		

		

					

			

		

		

			

		

			

		

		

		

		

		

		

		

		

		

		

		

				

		

		

		

		

		

		

		

		

			

			

362 MISCELLANEOUS DISCHARGE MEASUREMENTS 

Miscellaneous discharge measurements in the Gulf of Mexico River basins during water year 

October 1947 to September 1948--Continued 

Rio Grande Basin--Continued 

Date Stream Tributary to or 

diverting from-- Locality Discharge 

(sec.-ft.) 

Aug. 13 San Francisco Rio Grande Lat. 34°25', long. 106'48., in 192 

Riverside 

drain, 

NE} sec. 11, T. 2 N., R. 1 E., on 

downstream side of bridge on U. S. 

Highway 60, 2 miles east of Bernardo and 3} miles above mouth. 

24 .do .do .do 61.5 Sept. 8 .do .do .do 31.2 13 .do .do .do 34.2 17 .do .do .do 53.4 24 .do .do .do 60.1 30 .do .do .do 92.6 

May 12 Bluewater Creek 

below spillway. 

San Jose River In NEtNWt sec. 9, T. 12 N., R. 12 W., 

near Bluewater, N. Mex. 

33.5 

12 

• 

Bluewater Creek 

above diversions .do In SWOEi sec. 8, T. 12 N., R. 11 N., 

near Bluewater, N. Mex. 36.6 

Oct. 30 .do .do Corps of Engineers station at highway bridge about li miles southeast 

of Bluewater, N. Mex. 

0 

Nov. 18 .do .do .do 0 

Dec. 9 ....do .do .do 0 

Jan. 8 .do .do .do 0 

26 ....do ....do .do 0 

Feb. 17 .do .do .do 0 

Mar. 9 .do .do .do 0 

Apr. 20 .do .do .do .25 May 12 Bluewater main 

canal. 

Bluewater Creek.... In SEtNEtSEt sec. 9, T. 12 N., R. 11 

W., above diversion structure No. 8, 

near Bluewater, N. Mex. 

35.8 

12 ....do .do In SEkNEtSEt sec. 9, T. 12 N., R. 11 17.4 

W., below division gate heading, 

near Bluewater, N. Mex. 

12 Bluewater middle 

main canal. 

.do In SEkNEtSWt sec. 10, T. 12 N., R. 

11 W., above structure No. 10, 

near Bluewater, N. Mex. 

15.5 

12 .do .do In SEiNEk sec. 15, T. 12 N., R. 11 14.9 

W., opposite railroad mile post 

107, near Bluewater, N. Mex. 

12 .do .do In SEtSWtSWt sec. 24, T. 12 N., R. 8.24 

11 W., above highway crossing, 

near Bluewater, N. Mex. 

12 Middle lateral from Middle 

main canal 

.do In SEtNEtSWi sec. 10, T. 12 N., R. 11 W., at nead, near Bluewater, 

N. Mex. 

1.22 

12 Lateral from 

Middle main 

canal. 

.do In NEtSEtSEt sec. 15, T. 12 N., 

R. 11 W., at head, at structure 

No. 12 near Bluewater, N. Mex. 

1.27 

12 .do .do In NWOWtSWt sec. 14, T. 12 N., R. 11 W., at head, at structure 1.94 

No. 14, near Bluewater, N. Mex. 

12 .do .do At head, at structure No. 18, 

near Bluewater, N. Mex. 1.85 

12 Bluewater west aide 

canal. 

.do In SEtNEtSEt sec. 9, T. 12 N., R. 

11 W., at head, below structure 18.3 

No. 8, near' Bluewater, N. Mex. 

13 West aide canal. .do In SEtNEtSEt sec. 9, T. 12 N., R. 19.0 

11 W., at head, at structure 

No. 8, near Bluewater, N. Mex. 

13 .do .do In SWiNWISWt sec. 15, T. 12 N., 

R. 11 W., at turnout structure, 

near Bluewater, N. Mex. 

6.86 

13 .do .do In SWOO4SWi sec. 25, T. 12 N., 

R. 11 W., 250 feet above Harmon 

and Reid pump, near Bluewater, 

N. Mex. 

3.65 

13 .do .do In NWt sec. 22, T. 12 N., R. 11 4.99 W., 25 feet below bridge, at and 

above Blpewater, N. Mex. 

13 .do .do In SEOlitSlit sec. 22, T. 12 N., R. 4.35 11 W., above old bakery, at 

Bluewater N. Mex. 

13 Lateral from West 

side canal. 

.do In NUSEtSEt sec. 9, T. 12 N., R. 

11 W., at structure No. 4, near 2.67 

Bluewater, N. Mex. 

13 .do .do In NWtNEtNEt sec. 16, T. 12 N., R. .83 11 W., at structure No. 5, near 

Bluewater, N. Mex. 

13 .do .do In SWOJEtNEt sec. 16, T. 12 N., R. 2.28 11 W., at structure No. 6, near 

Bluewater, N. Mex. 

13 .do .do In NEtNEtSEt sec. 16, T. 12 N., R. 1.08 11 W., at C and H turnout, near 

Bluewater N. Mex. 13 .do .do In NWtSEtSWt sec. 15, T. 12 N., 

R. 11 W., at turnout, near Bluewater, N. Mex. 

.90 

13 .do .do In SWiNEtSWt sec. 22, T. 12 N., R. .84 11 W., above old bakery, at 

Bluewater, N. Mex. 

13 Old company canal. .do In NEtSWt sec. 9, T. 12 N., R. 11 4.17 

W., at head, near Bluewater, 

N. Mex. 

13 Oho del Gallo San Jose River In sec. 10, T. 10 N., R. 10 W., at 

concrete structure, at San Rafael, 

N. Mex. 

2.69 
		

			

		

		

					

		

		

		

					

			

				

						

						

					

						

		

		

		

	 			

		

		

	 				

		

	 				

		

		

		

		

			

		

		

		

		

		

		

		

		

		

363 MISCELLANEOUS DISCHARGE MEASUREMENTS 

Miscellaneous discharge measurements in the Gulf of Mexico River basins during water year 

October 1947 to September 1948-Continued 

Rio Grande Basin--Continued 

Date 

Feb. 17 

18 

17 

18 

17 

18 

17 

18 

17 

18 

17 

18 

17 

18 

18 

Dct. 17 

Dec. 5 

Jan. 26 

Mar. 8 

4pr. 14 

May 16 

June 25 

lug. 12 

1ept.18 

)ec. 5 

Mar. 8 May 20 

lug. 11 

)ec. 6 

Mar. 8 

May 20 

mg. 11 

)ec. 6 

tar. 8 

My 20 

.g. 11 

lov. 18 

tar. 3 

,pr 8 

My 15 

June 24 

ug. 5 

Nov. 18 

Mar. 3 

Apr. 8 

May 15 

26 

June 24 

Aug. 5 

Sept.10 

Nov. 18 

Apr. 8 

ay 15 

26 

June 24 

Aug. 5 

Sept.10 

ay 26 

une 24 

ug. 5 ept.10 

ay 26 

Stream 

Pecos River 

.do 

.do 

.do 

.do 

.do 

Rio Hondo 

.do 

Hagerman Canal 

.do 

Rio Felix 

.do 

Walnut Creek 

.do 

Ditch near Dexter. 

Phantom Lake Spring 

.do 

.do 

.do 

.do 

.do 

.do 

do 

.do 

Oiffin Springs.... 

do 

.do 

.do 

West Sandia Springs 

.do 

.do 

.do 

East Sandia Springs 

.do 

.do 

.do 

Leon Springs Well 

C or No. 9. 

.do 

.do ,. 

.do 

.do 

.do 

Leon Springs Well B 

or No. 10. 

.do 

.do 

.do 

....do 

.do 

.do 

.do Leon Springs 

Sulphur Well. 

.do 

.do 

....do 

.do 

.do 

.do 

Leon Springs Well 

No. 3. 

.do 

.do 

.do 

Leon Springs 

Well No. 2. 

Tributary to or 

diverting from--

Rio Grande 

do. 

.do 

.do 

.do 

.do 

Pecos River 

.do 

Rio Hondo 

.do 

Pecos River 

.do 

.do 

.do 

.do 

Phantom Lake Irrigation System.' 

.do 

.do 

.do 

.do 

.do 

.do 

.do 

.do 

Main canal of 

Reeves County 

Water Improvewent District 

No. 1. 

.do 

.do 

.do 

Canal of Reeves 

County Water 

Improvement 

District No. 1. 

.do 

.d9 

.do 

.do 

.do 

.do 

.do 

Leon Creek 

.do 

.do 

.do 

.do 

.do 

.do 

.do 

do 

do 

do 

do 

do 

.do 

....do. 

.do 

.do ....do.. 

.do 

.do 

.do 

.do 

.do 

.do 

.do 

.do 

Locality 

Lat. 33°22'25", long. 104°24'00", in NE} sec. 5, T. 11 S., R. 25 E.. 

above Rio Hondo. 6 miles east of 

Roswell, N. Mex. .do 

At Dexter Bridge, in NW} sec. 10. T. 

13 S.. R. 26 E.. 2} miles northeast of Dexter, N. Mex. .do 

In sec. 35, T. 13 S., R. 26 E.. 

t mile above Rio Felix and 2 miles 

northeast of Hagerman, N. Mex. 

.do 

At mouth in Ei sec. 9, T. 11 S., R. 

25 E., about 6 miles east of Roswell, 

N. Mex. 

.do 

Lat. 33°24'20", long. 104°26'20". in 

NE} sec. 31, T. 10 S., R. 25 E., at 

head, 5 miles east of Roswell. 

N. Mex. 

.do 

In Si sec. 35, T. 13 S., R. 26 E.. 

t mile above mouth and 2 miles north 

of Hagerman, N. Mex. 

.do 

Lat. 32°58', long. 104°22', in lot 2, 

sec. 2,'T. 16 S., R. 26 E., at mouth, 

3 miles south of Lake Arthur. N. Mex. 

do 

Ditch under highway 1.8 miles east of 

Dexter. N. Mex. 

Lat. 30°56', long. 103°51', at source 

(mouth of cave) 3.7 miles west- southwest of Toyahvale, Tex. 

do 

.do 

.do 

.do 

.do 

.do 

.do 

.do 

Lat. 30°57', long. 103°47', in piddle 

of northeast boundary. sec. 20. 

block 13, Houston & Great Northern 

R. R. Survey, at Toyahvale. Tex. 

.do 

.do 

.do 

Lat. 30°59', long. 103°44', at head of 

feeder canal, 500 feet south of U. S. 

Highway 290, at Balmorhea, Tex. 

.do 

.do 

.do 

Lat. 30°59', long. 103°44', at former 

gaging station just below small dam, 

1 mile east of Balmorhea, Tex. 

.do 

.do 

.do 

8 miles west of Fort Stockton, Tex.... 

.do 

.do 

.do 

.do. 

.do 

8 miles west of Fort Stockton, Tex.... 

.do 

.do 

.do 

.do 

.do 

.do 

.do 

.do 

.do 

.do 

.do 

.do 

.do 

.do 

.do 

.do 

.do 

.do 

.do 

Discharge 

(sec.-ft.) 

27.8 

25.1 

53.8 

53.5 

67.7 

67.1 

12.6 

10.8 

40.6 

40.6 

6.57 

5.52 

1.29 

1.54 

4.74 

14.4 

14.4 

14.4 

14.0 

14.0 

14.6 

13.6 

13.1 

12.9 

4.74 

4.48 

4.70 

4.41 

1.27 

1.16 

.59 

1.01 

.94 

.74 

.99 

.66 

.52 

.50 

.37 

0 

0 

0 

4.13 

4.91 

4.08 

12.0 

11.1 

3.63 

3.45 

1.32 

1.59 

1.63 

2.19 

1.79 

1.23 

1.35 

1.37 

2.30 

.18 

.08 

.10 

3.99 
	 	

		

		

		

		

		

		

			

		

		

		

		

		

	 			

		

		

		

		

			

			

			

			

		

		

		

		

		

364 MISCELLANEOUS DISCHARGE MEASUREMENTS 

Miscellaneous discharge measurements in the Gulf of Mexico River basins during water year 

October 1947 to September 1948--Continued 

Rio Grande Basin--Continued 

Tributary to or Discharge Date Stream Locality diverting from-- (sec.-ft.) 

June 24 Leon Springs Well Leon Creek 8 miles west of Fort Stockton, Tex... 0.93 No. 2. 

Aug. 5 ....do ....do .81 Sept 10 ....do ....do ....do .32 May 26 Leon Springs Well ....do ... do 1.99 No. 1. 

June 24 ....do ....do ....do ..05 Aug. 5 ....do ....do 1..04 Sept.10 ....do ....do 1..04 Nov. 18 Leon Springs Well A ....do ....do 2.93 or No. 11. Mar. 3 ....do ... do ....do 2.40 Apr. 8 ....do ....do .. ....do 2.62 May 15 ....do ....do ....do 2.49 26 ....do ....do 4.16 June 24 ....do ....do........ . . ....do 2.74 Aug. 5 ....do ....do ....do 2.06 Sept.10 ....do ....do ....do 1.95 Nov. 18 Leon Springs total ....do ....do 16.3 spring flow and 

wells. 

Mar. 3 ....do ....do ....do 12.3 Apr. 8 ....do ....do 15.4 

May 15 ....do ....do ....do 24.8 

26 ....do ....do ....do 27.5 June 24 ....do ....do ....do k11.1 Aug. 5 ....do ....do k8.73 Sept.10 ....do ....do ....do 5.07 Nov. 18 Leon Springs Main ....do 15.5 canal above dam. 

Oct. 15 ..San Pedro Springs San Pedro Co.'s Lat. 30°59', long. 102°49', in Wi 3.50 

canal. Sur. 208, Joseph Burleson, Pecos 

County, just below source, 7 miles 

northeast of Fort Stockton, Tex. 

Dec. 2 ....do ....do 3.61 

Jan. 23 ....do ....do ....do 3.81 

Mar. 4 ....do ....do ....do 3.96 

Apr. 7 ....do ....do ....do 3.83 

May 15 ....do ....do ....do 3.64 

June 23 ....do ....do 3.42 

Aug. 5 ....do ....do ....do 3.14 

Sept.10 ....do do do 3.28 

June 24 Dry Devils River... Devils River Lat. 29'48'25", long. 100°56'35", 1460,000 

16.3 miles west of Carta Valley, 

Val Verde County, Tex. Drainage 

area, 742 square miles. 

24 Mailtrail Creek.... Dry Devils River Lat. 29°58'45", long. 100°44'15", 1170,000 

5 miles northeast of Loma Alta, 

Val Verde County, Tex. Drainage 

area, 75 square miles. 

24 Little Red Bluff Red Bluff Creek Lat. 29°47'40", long. 100°40'30", t30,000 

Creek. 5.5 miles upstream from confluence 

with Red Bluff Creek, at Carta 

Valley, Val Verde County, Tex. 

Drainage area, 10.3 square miles. 

•Field estimate. 

• 3.91 second-feet discharge of San Pedro Springs measured at this location Oct. 10, 1946, was 

inadvertently omitted from list of miscellaneous discharge measurements published In Water-Supply 

Paper 1088. 

t Plow at crest, by slope-area method. 

k Natural flow. Wells are not being jetted. 

Tularosa Valley 

Oct. 7 La Luz ditch Alamogordo-La Luz Lat. 32°58'45", long. 105°56'20", 0.80 ditch. in SW} sec. 25, T. 15 S., R. 10 

E., at head, i mile above La Luz 

and 6 miles north of Alamogordo, 

N. Mex. 

24 ....do ....do .63 Dec. 9 ....do ....do ....do .87 

27 ....do ....do 91 

Jan. 21 ....do ....do .96 

Feb. 24 ....do ....do .85 

May 4 ....do ....do ....do .88 

June 9 ....do ....do .67 

25 ....do ....do ....do .81 

July 16 ....do ....do ....do .97 

Aug. 16 ... do do do .92 
		

INDEX 

Page Abtquiu, N. Mex., Rio Chama near 292 Accuracy of field data and computed results 5-6 Acequia Madre at Costilla, N. Mex 277 

Acequia Rincon, N. Mex., diversion by 300 Acme, N. Mex., Pecos River near 322 Acre-foot, definition of 1 Addicks, Tex., Addicks Reservoir near 83 Barker Reservoir near 80 Buffalo Bayou near 81 Addicks Reservoir near Addicks, Tex 83 Agencies other than Geological Survey, 

records collected by 12-13 Alamogordo, N. Mex., Alamogordo water 

supply near 357 Alamogordo Dam, N. Mex., Pecos River below 321 Alamogordo-La Luz ditch at La Luz, N. Mex 357 Alamogordo Reservoir, N. Mex., contents of 241,243 Alamogordo water supply near Alamogordo, N. Mex 357 Alamosa, Colo., Rio Grande at 223 Alamosa Creek above Terrace Reservoir, Colo 255 below Terrace Reservoir, Colo • 256 Albuquerque, N. Mex., Rio Grande at 233 Tijeras Creek near 305 Aledo, Tex., Clear Fork Trinity River near 61 Alire ditch at Garcia, Colo 277 Alto, Tex., Angelina River near 41 Neches River near 36 Alvin, Tex., Chocolate Bayou near 88 American Canal Co.'s canal, Tex., discharge measurements of 359 near Fulshear, Tex 121 Angelina River at Horger, Tex 43 discharge measurement of 359 near Alto, Tex 41 near Lufkin, Tex 42 Angleton, Tex., Oyster Creek near 89 Anton Chico, N. Mex., Pecos River near 318 Aquilla Creek near Aquilla, Tex 112 Arroyo Hondo, N. Mex., Rio Hondo at 284 Arroyo Seco, N. Mex., Rio Lucero near 287 Artesia, N. Mex., Pecos River near 324 Asherton, Tex., Nueces River near 204-205 Aspermont, Tex., Double Mountain Fork Brazos River near 90 Salt Fork Brazos River near 104 Atascosa River at Whitsett, Tex 218 Attoyac Bayou near Chireno, Tex 45 Austin, Tex., Barton Springs at 169-170 

Colorado River at 134 Marshall Ford Reservoir near 133 

Balaxy Creek, Tex., discharge measure- ment of 359 Ballinger, Tex., Colorado River at 130 

Elm Creek at 144 

Barker Reservoir near Adcticks, Tex 80 

Barranco Alto ditch, N. Mex., diversion 

by 300 

Barton Springs at Austin, Tex 169-170 Basile, La., Bayou Nezpique near 15 

Bay City, Tex., Colorado River near 139 

Bayou des Cannes near Eunice, La 16 

Bayou Nezpique near Basile, La 15 Bayou Plaquemine Brute, La., discharge measurements of 358 Bayou Queue de Tortue, La., discharge measurements of 358 

Bear Canyon near Mimbres, N. Mex 354 

Beckwith Creek near De Quincy, La 23 Belen, N. Mex., Rio Grande near 234 Belton, Tex., Leon River near 115 Benbrook, Tex., Clear Fork Trinity River near 62 Bent, N. Mex., Rio Tularosa near 355 

Page 

Bernalillo, N. Mex., Jemez Creek near 304 

Rio Grande near 232 

Bernardo Interior drain, N. Mex., discharge measurements of 361 

Bernardo, N. Mex., Rio Grande near 235 

Rio Puerco near 309 

Berry Creek, Tex., discharge measure- ment of 360 

Big Creek near Guy, Tex 125 

near Needville, Tex 124 

Big Sandy Creek (Sabine River Basin) 

near Big Sandy, Tex 33 

Big Sandy Creek (Trinity River Basin) 

near Bridgeport, Tex 59-60 

Black River above Malaga, N. Mex 343 

Blanca, Colo., Trinchera Creek near 260 

Blanco River at Wimberley, Tex 183 

Bluewater Creek, N. Mex., discharge measurements of 362 

near Bluewater, N. Mex 311 

Bluewater main canal, N. Mex., discharge 

measurements of 362 

Bluewater middle main canal, N. Mex., 

discharge measurements of 362 

Bluewater west canal, N. Mex., discharge 

. measurement of 362 

Blum, Tex., Nolands River at 111 

Bodano Bayou, Tex., discharge measurement of 358 

Bon Wier, Tex., Sabine River near 30 

Bowles Creek, Tex., discharge measure- ment of 358 

Box Creek, Tex., discharge measure- ment of 358 

Boyd, Tex., West Fork Trinity River 

near • 48 

Bracken, Tex., Cibolo Creek above 198 

Brackettville, Tex., Las Moras Springs 

at 351-352 

West Nueces River near 212 

Brady Creek at Brady, Tex 165 

Brays Bayou at Houston, Tex 85 

Brazos River at East Columbia, Tex 103 

at Richmond, Tex 102 

at Seymour, Tex 91 

at Waco, Tex 97 

Clear Fork, at Fort Griffin, Tex 107 

at Nugent, Tex 106 

near Crystal Falls, Tex 108 

discharge measurements of 359 

Double Mountain Fork, at Lubbock, 

Tex 90 

near Aspermont, Tex 90 

near Bryan, Tex 99 

near Glen Rose, Tex 95 

near Hempstead, Tex 100 

near Marlin, Tex 98 

near Palo Pinto, Tex 94 

near San Felipe, Tex 101 

near South Bend, Tex 92 

near Whitney, Tex 96 

Salt Fork, near Aspermont, Tex 104 

Brazos River Basin, Tex., discharge measurements in 359-360 

gaging-station records in 90-126 

Bridgeport, Tex., Big Sandy Creek near 59-60 

Bridgeport Reservoir above 47 

Bridgeport Reservoir above Bridgeport, 

Tex 47 

Brisco Irrigation Co.'s canal, Tex., 

discharge measurements of 360 

Brownwood, Tex., Brownwood Reservoir 

near 157-159 

Pecan Bayou at 160 

Brownwood Reservoir near Brownwood, 

Tex 157-159 

Brushy Creek, Tex., discharge measurement of 360 

Bryan, Tex., Brazos River near 99 

Buchanan Reservoir near Burnet, 

Tex 133 

315 
366 INDEX 

Page Page 

Buck Creak, Tex., discharge measurement of 

Buffalo Bayou at Houston, Tex 

near Addicks, Tex 

Bull Creek near Ira, Tex 

Bulverde, Tex., Cibolo Creek near 

Bundick Creek near Dry Creek, La 

Burnet, Tex., Buchanan Reservoir near 

359 

82 

81 

140 

198 

22 

133 

Caballo Dam, N. Mex., Ric Grande below. 239 

Caballo Reservoir, N. Mex., contents 

of 240,242 

Cabezon, N. Mex., Rio Puerco at 307 

Rio Puerco near 306 

Cabresto Creek near Questa, N. Mex 281 

Calallen, Tex., Nueces River at 211 

Calcasieu River near Glenmora, La 17-18 

near Kinder, La 20 

near Oberlin, La 19 

Calcasieu River Basin, La., gagingstation records In 17-24 

Calliham, Tex., Frio River at 215 

Cameron, Tex., Little River at 116 

Caney Creek, Tex., discharge measurement of 359 

near Splendora, Tex 79 

Canyon ditch, N. Mex., diversion by 300 

Capulin, Colo., La Jara Creek near 257 

Carlsbad, N. Mex., Pecos River at 328 

Pecos River near 326,327 

Carlsbad, Tex., North Concho River near 155 

Carnero Creek near La Garita, Colo 253 

Carrollton, Tex., Elm Fork Trinity 

River near 65 

Carson Reservoir, N. Mex., contents 

of 240,242 

Casias Creek near Costilla, N. Mex 

Cave Springs, Tex., discharge measurement of 

Cedar Creek (tributary to Masons Creek), 

Tex., discharge measurement of 

Cedar Creek (tributary to Trinity River) 

near Mabank, Tex 

Cerro, N. Mex., Latir Creek near 

Rio Grande near 

Cerro Canal at Costilla, N. Mex 

near Jaroso, Colo 

New Mexico Branch, near Jaroso, Colo 

Chambers Creek near Corsicana, Tex 

Chamita, N. Mex., Rio Chama near 

Champlin Creek near Colorado City, Tex 

Cherokee Bayou near Elderville, Tex 

Chico Arroyo near Guadalupe, N. Mex 

Chireno, Tex., Attoyac Bayou near 

Chocolate Bayou near Alvin, Tex 

Christoval, Tex., South Concho Irrigation Co.'s canal at 

South Concho River at 

Cibolo Creek above Bracken, Tex 

at Selma, Tex 

discharge measurements of 

near Bulverde, Tex 

near Falls City, Tex 

Clear Creek (tributary to Gulf of 

Mexico) near Pearland, Tex 

Clear Creek Basin, Tex., gagingstation records in 

Clear Creek (tributary to Rio Grande) 

below Continental Reservoir, 

Colo 

Clear Creek (tributary to San Saba 

River), Tex., discharge measurement of 

Clear Fork. See Brazos River, Clear 

Fork. ---

Clear Fork. See Trinity River, Clear 

Fork. ---

Cleveland, Tex., East Fork San Jacinto 

River near 

Clifton, Tex., North Bosque River near 

Cochiti, N. Mex., Rio Grande at 

Coleto Creek near Victoria, Tex 

Colorado City., Tex., Champlin Creek 

near 

Colorado River at 

Morgan Creek near 

Colorado River at Austin, Tex 

at Ballinger, Tex 

275 

360 

359 

69 

278 

226 

277 

277 

277 

70 

293 

143 

34 

310 

45 

88 

150 

145 

198 

199 

360 

198 

200 

86 

Colorado River at Colorado City, 

Tex 128 

at Columbus, Tex 137 

at La Grange, Tex 136 

at Robert Lee, Tex 129 

at Smithville, Tex 135 

at Wharton, Tex 138 

at Winchell, Tex 131 

near Bay City, Tex 139 

near Ira, Tex 127 

near San Saba, Tex 3 132 

Colorado River Basin, Colo.-Tex., discharge measurements in 360 

diversions from, to Rio Grande Basin 244 

gaging-station records in 127-170 

Columbus, Tex., Colorado River at 137 

Comal River at New Braunfels, Tex 181 

Comanche Springs at Fort Stockton, Tex 350 

Comfort, Tex., Guadalupe River at 176 

Comunidad ditch, N. Mex., diversion 

by 300 

Computations, accuracy of results of 5-6 

Concan, Tex., Frio River at 213 

Concho River near Paint Rock, Tex 149 

near San Angelo, Tex 148 

Conejos River at Platoro, Colo 263 

near La Sauses, Colo 265 

near Mogote, Colo 264 

Conroe, Tex., West Fork San Jacinto 

River near 72 

Contents, definition of 2 

Continental Reservoir, Colo., Clear 

Creek below 245 

Control, definition of 1 

Cooperation, record of 12-13 

Cordillera ditch at Garcia, Colo 277 

Correo, N. Mex., San Jose River at 313 

Corsicana, Tex., Chambers Creek near. 70 

Costilla, N. Mex., Acequia Madre at.. 277 

Casias Creek near 275 

Cerro Canal near 277 

Costilla Creek near 271,272,273 

Santistevan Creek near 276 

Costilla Creek above reservoir, near 

Costilla, N. Mex 271 

at Garcia, Colo 274 

below Reservoir, near Costilla, 

N. Mex 272 

diversions from 277 

near Costilla, N. Mex 273 

Cottonwood Creek near Lake Arthur, 

N. Mex 342 

Cotulla, Tex., Nueces River at 206 

Cowhouse Creek, Tex., discharge 

measurement of 359 

Creede, Colo., Rio Grande below 220 

Rio Grande near 219 

Crestone, Colo., North Crestone Creek 

near 252 

Crooked CreeK, Tex., discharge measurement of 359 

Crystal Falls, Tex., Clear Fork Brazos 

River near 108 

Culebra Creek at San Luis, Colo 263 

below San Luis, Colo 270 

Cundiyo, N. Mex., Rio Santa Cruz at 297 

86-87 Cypress Creek near Westfield, Tex 76 

Dallas, Tex., Trinity River at 52 

245 Data, accuracy of 5-6 

explanation of 2-5 

De Quincy, La., Beckwith Creek near 2-5 

360 Del Norte, Colo., Pinos Creek near 248 

Rio Grande near 221 

Delaware River near Red Bluff, N. Mex 344 

Denton Creek near Grapevine, Tex 67 

near Roanoke, Tex 66 

Derby, Tex., Frio River near 214 

77 Devils River near Juno, Tex 351 

113 Diboll, Tex., Neches River near 37 

230 Dixon, N. Mex., Embudo Creek at 289 

185 Double Mountain Fork. See Brazos River, 

Double Mountain Fork. 

143 Dove Creek near Knickerbocker, Tex 153 

128 Dove Creek Spring near Knickerbocker, 

141-142 Tex 153-154 

134 Dry Creek, La., Bundick Creek 

130 near 22 
INDEX 367 

Page 

Dry Creek (Brazos River Basin) near 

Richmond, Tex 122-123 

Dry Creek (Colorado River Basin) at 

Buescher Lake, near Smithville, 

Tex 170 

Dry Devils River, Tex., discharge 

measurement of 364 

Eagle Mountain Reservoir above Fort 

Worth, Tex 49 

East Columbia, Tex., Brazos River at 103 

East Sandia Spring, Tex., discharge 

measurements of 363 

Eastdale No. 1 intake canal near Jaroso, 

Colo 277 

Easterly, Tex., Navasota River near 120 

Edna, Tex., Lavaca River near 172 

El Rito Creek near El Rito, N. Mex 295 

El Vado Dam, N. Mex., Rio Chama below 291 

El Vado Reservoir, N. Mex., contents 

of P40,242 

Elderville, Tex., Cherokee Bayou near 34 

Elephant Butte Dam, N. Mex., Rio Grande 

below 238 

Elephant Butte Reservoir, N. Mex., contents of 240,242 

Elm Creek at Ballinger, Tex 144 

Elm Fork. See Trinity River, Elk Fork 

Elmendorf ITTUrior drain near San 316 

Antonio, N. Mex. 

Embudo, N. Mex., Rio Grande at 228 

Embudo Creek at Dixon, N. Mex 289 

Eunice, La., Bayou des Cannes near 16 

Evadale, Tex., Neches River at 39 

Fairchild Creek near Reedville, Tex 126 

Falls City, Tex., Cibolo Creek near 200 

San Antonio River near 187 

Faywood, N. Mex., Mimbres River near 353 

Flat Creek, Tex., discharge measurements of 358 

Floods, special reports on 11 

Port Garland. Colo.. Sangre de Cristo 

Creek near 261 

Trinchera Creek near 258,259 

Cite Creek near 262 

Fort Griffin, Tex., Clear Fork Brazos 

River at 107 

Fort Phantom Hill Reservoir near Nugent, 

Tex 109 

Fort Stockton, Tex., Comanche Springs 

at 350 

Fort Worth, Tex., Clear Fork Trinity 

River at 63 

Eagle Mountain Reservoir above 49 

West Fork Trinity River at 50 

Frio River at Calliham, Tex 215 

at Concan, Tex 213 

discharge measurement of 361 

near Derby, Tex 214 

Fuchs ditch, Colo., diversion by 244 

Fulshear, Tex., Ame;ican Canal Co.'s 

canal near 121 

Gallinas River at Montezuma, N. Mex 337 

near Montezuma, N. Mex 336 

Ganado, Tex., Navidad River near 174 

Garcia, Colo., Alire ditch at 277 

Cordillera ditch at 277 

Costilla Creek at 274 

Mesa ditch near 277 

Middle ditch at 277 

Georgetown. Tex., San Gabriel River at 118 

Giffin Springs, Tex., discharge measurements of 363 

Girvin, Tex., Pecos River near 334 

Gladewater, Tex., Sabine River near 3, 26 

Glen Rose, Tex., Brazos River near 95 

Paluxy Creek at 110 

Glenmora, La., Calcasieu River neat' 17-18 

Ooliad, Tex., San Antonio River at 189 

Goose Creek near Wagon Wheel Gap, Colo 246 

Graford, Tex.. Possum Kingdom Reservoir 

near 93 

Grand Prairie, Tex., West Fork Trinity 

River at 51 

Grandfalls, Tex., Pecos River below 333 

Grandfalls-Big Valley Canal, Tex., 

monthly diversion through 346 

Page 

Grants, N. Mex., San Jose River near 312 

Grapevine, Tex., Denton Creek near 67 

Guadalupe, N. Mex., Chico Arroyo near 310 

Guadalupe River above ('omal River, at 

New Braunfels, Tex 178 

at Comfort, Tex 176 

at Hunt, Tex 175 

at Victoria, Tex 179 

near Spring Branch, Tex 177 

Guadalupe River Basin, Tex., discharge 

measurements in 360-361 

gaging-station records in 175-200 

Guy, Tex., Big Creek near 12o 

Hagerman, N. Mex., Rio Felix near 341 

Hagerman Canal, N. Mex.. discharge 

measurements of 363 

Hallettsville, Tex., Lavaca River at 171 

Hasse, Tex., Leon River near 114 

Hempstead, Tex., Brazos River near 100 

Hickory Branch at Kernan, La 24 

Hickory Slough near Pearland, Tex 87 

Hondo, N. Mex., Rio Bonito at 340 

Rio Ruidoso at 338 

Horde Creek Reservoir near Valera, Tex 161 

Harger, Tex., Angelina River at 43 

Houston, Tex., Brays Bayou at 85 

Buffalo Bayou at 82 

Whiteoak Bayou at 84 

Hueco Springs, Tex., discharge measurements of 361 

Huffman, Tex., San Jacinto River near 74 

Humble, Tex., West Fork San Jacinto 

River near 73 

Hunt, Tex., Guadalupe River at 175 

Ildefonso, N. Mex., Well ditch at 302 

Indian ditch, N. Mex., diversion by 288 

Ingram, Tex., Johnson Creek near 180 

Ira, Tex., Bull Creek near 140 

Colorado River near 127 

Jacksonville, Tex., Mud Creek near 40 

Jacona ditch, N. Mex., diversion by 300 

Jaroso, Colo., Cerro Canal near 277 

Eastdale No. 1 intake canal 277 

New Mexico Branch Cerro Canal near 277 

Jemez Creek near Bernalillo, N. Max 304 

Johnson City, Tex., Pedernales River 

near 169 

Johnson Creek near Ingram, Tex 180 

Juan Manuel ditch,. N. Mex., diversion 

by 288 

Junction, Tex., Llano River near 167 

North Llano River near 166 

Juno, Tex., Devils River near 351 

Kerber Creek at Ashley Ranch, near 

Villa Grove, Colo 250 

Kernan, La., Hickory Branch at 24 

Kinder, La., Calcasieu River near 20 

Knickerbocker, Tex., Dove Creek near 153 

Dove Creek Spring near 153-164 

Kountze, Tex., Village Creek near 46 

La Garita, Colo., Carnero Creek near 253 

La Garita Creek near 254 

La Garita Creek near La Garita, Colo 254 

La Grange, Tex., Colorado River at 136 

La Jara Creek at Gallegos Ranch, near 

Capulin, Colo 257 

La Luz, N. Mex., Alamogordo-La Luz' 

ditch at 357 

La Luz ditch, N. Mex., discharge 

measurements of 364 

La Madera, N. Max., Rio Ojo Caliente at 296 

La Sauses, Colo., Conejos River near 265 

Rio Grande near 224 

Laguna, Tex., Neuces River at 202 

Lake Arthur, N. Mex., Cottonwood Creek 

near 342 

Pecos River near 323 

Lake Avalon, N. Mex., contents of 241,243 

Lake Dallas near Lake Dallas, Tex 64 

Lake Fork. See Sabine River, Lake Fork. 

Lake McMillaET—N. Mex., contents of...241,243 

Lake Nasworthy near San Angelo, Tex 146 

Lampasas River at Youngsport, 

Tex 117 
368 INDEX 

Page 

Larrison Creek, Tlx.. discharge measurement of 358 Las Joyas ditch, N. Mex., diversion by 300 Las Moras Springs at Brackettville, Tex 351-352 Latir Creek near Cerro, N. Mex 278 

Lavaca River at Hallettsville, Tex 171 

near Edna, Tex 172 seepage investigations 173 Lavaca River Basin, Tex., gaging-sta- tion records in 171-174 Leon River, Tex., discharge measure- ment of 359 near Belton, Tex 115 near Hasse, Tex 114 Leon Springs main canal above dam, Tex , discharge measurement of 364 Leon Springs wells, Tex., discharge measurements of 363-364 Leona River spring flow near• Uvalde, Tex 217 Liberty, Tex., Trinity River at 58 Lipan Springs, Tex., discharge measure- ment of 360 Little Cow Creek, Tex., discharge measurements of 358 Little Red Bluff Creek, Tex., discharge measurement of 364 Little River at Cameron, Tex 116 Llano ditch, N. Mex., diversion by 300 near Questa, N. Mex 282 Llano Frio ditch, N. Mex., diversion 

by 300 Llano River at Llano, Tex 168 near Junction, Tex 167 Lobatos, Colo., Rio Grande near 225 Logansport, La., Sabine River at 28 Los Cordovas, N. Mex., Rio Taos at 286 Los Pinos River near Ortiz, Colo 268 Lubbock, Tex., Double Mountain Fork Brazos River at 90 

Lufkin, Tex., Angelina River near 42 Luling, Tex., Plum Creek near 184 San Marcos River at 182 

McCarthy Spring, Tex., discharge measurement of 360 McClure Reservoir, N. Mex., contents of 240,242 McGraw Creek, Tex., discharge measure- ments. of 358 McMillan Dam, N. Mex., Pecos River below 325 Mabank, Tex., Cedar Creek near 69 Mack Creek, Tex., discharge measure- ment of 359 Madera Canyon near Toyahvale, Tex 347 Mailtrail Creek, Tex., discharge measurement of 364 Malaga, N. Mex., Black River above 343 Pecos River near 329 Manassa, Colo., San Antonio River near 267 Marlin, Tex., Brazos River near 98 Marshall Ford Reservoir near Austin, Tex 133 Masons Creek, Tex., discharge measure- ment of 359 Mathis, Tex., Nueces River near 209 

Medina Lake near San Antonio, Tex 189-196 Medina River, Tex., discharge measure- ments of 360 

near San Antonio, Tex 197 Menard, Tex., Noyes Canal at 164 

San Saba River at 162 Mermentau River Basin, La., discharge measurements in 358 

gaging-station records in 15-16 Mesa ditch near Garcia, Colo 277 Middle Concho River near Tankersly, Tex 151 Middle ditch at Garcia, Colo 277 Middle main canal, lateral from, N. Mex., discharge measurements of 362 middle lateral from, N. Mex., discharge measurement of 362 Midway, Tex., Trinity River near 55 Milam, Tex., Sabine River near 29 Mill Creek, Tex., discharge measurePage 

Mimbres, N. Mex., Bear Canyon near 354 

Mimbres River near 352 

Mimbres River near Faywood, N. Mex 353 

near Mimbres, N. Mex 352 

Mimbres River Basin, N. Mex., gagingstation records in 352-354 

Mineola, Tex., Sabine River near 25 

Mission River at Refugio, Tex 201 

Mitchell ditch near Santa Fe, N Mex... 302 

Mocha ditch, N. Mex., diversion by 300 

Mogote, Colo., Conejos River near 264 

Monte Vista, Colo., Rio Grande near 222 

Rock Creek near 249 

Montezuma, N. Mex., Gallinas River at 337 

Gallinas River near 336 

Morgan Creek near Colorado. City, Tex..141-142 

Mud Creek near Jacksonville, Tex 40 

Nambe Canal, N. Mex., diversion by 303 

Nambe Creek, N. Mex., diversions from 300 

near Nambe, N. Mex 299 

Navasota River near Easterly, Tex 120 

Navidad River near Ganado, Tex 174 

Neches River at Evadale, Tex 39 

near Alto, Tex 36 

near Diboll, Tex 37 

near Neches, Tex 35 

near Rockland, Tex 38 

Neches River Basin, Tex., discharge measurement in 358-359 

gaging-station records in 35-46 

Needville, Tex., Big Creek near 124 

Fairchild Creek near 126 

New Braunfels, Tex., Comal River at. 181 

Guadalupe River at 178 

New Year Creek, Tex., discharge measurement of 360 

Nichols Reservoir, N. Mex., contents 

of 241,242 

Nolands River at Blum, Tex 111 

North Bosque River near Clifton, Tex 113 

North Concho River at San Angelo, Tex 156 

at Sterling City, Tex 154 

near Carlsbad, Tex 155 

North Crestone Creek near Crestone, 

Colo 252 

North Llano River near Junction, Tex 166 

North San Gabriel River, Tex., discharge measurement of 360 

Noyes Canal at Menard, Tex 164 

Nueces River at Calallen, Tex 211 

at Cotulla, Tex 206 

at Laguna, Tex 202 

below Uvalde, Tex 203 

near Asherton, Tex 204-205 

near Mathis, Tex 209 

near Three Rivers, Tex 208 

near Tilden, Tex 207 

seepage investigation 210 

Nueces River Basin, Tex., discharge measurement in 361 

gaging-station records in 202-218 

Nugent, Tex., Clear Fork Brazos River 

at 106 

Fort Phantom Hill Reservoir near 109 

Oakwood, Tex., Trinity River near 54 

Oberlin, La., Calcasieu River near 19 

Whiskey Chitto Creek near 21 

Oio del Gallo, N. Mex., discharge measurement of 362 

Old company canal, N. Mex., discharge measurement of 362 

Orla, Tex., Pecos River near 331 

Salt (Screwbean) Draw near 345 

Ortiz, Colo., Los Pinos River near 268 

San Antonio River at 266 

Ortiz ditch, N. Mex., diversion by 300 

San Antonio River at 266 

Oyster Creek, Tex., discharge measure- ments of 359 

near Angleton, Tex 89 

Oyster Creek Basin, Tex., discharge measurements in 359 

gaging-station record in 89 

Paint Reck, Tex., Concho River near 149 

Palo Pinto, Tex., Brazos River near 94 

Paluxy Creek at Glen Rose, Tex 110 

ment of 360 Park View, N. Mex., Rio Chama at 290 
369 INDEX 

Page 

Park View, N. Mex., Willow Creek rear 294 

Parker Creek, Tex., discharge measure- ment of 359 

Peach Creek at Splendors, Tex 78 Pearland, Tex., Clear Creek near 86 Hickory Slough near 8 Pecan Bayou at Brownwood, Tex 161 Pecan Springs, Tex., discharge measure- ment of 36 1 

Pecos, N. Mex., Pecos River near 31 Pecos, Tex., Pecos River at 332 Toyah Creek near 34 Pecos County Water Improvement District 

No. 2 Canal, Tex., monthly diversion through 346 Pecos County Water Improvement District 

No. 3 Canal, Tex., monthly diversion through 346 Pecos County Water Improvement District No. 2 upper diversion canal, Tex , diversion through 346 Pecos River at Carlsbad, N. Mex 328 at dam site 3, near Carlsbad, N. Mex 32 at Pecos, Tex 332 at Red Bluff, N. Mex 3 33' at Santa Rosa, N. Mex 319 

below Alamogordo Dam, N. Mex 3?1 below Grandfalls, Tex 333 below McMillan Dam, N. Mex 325 below Major Johnson Springs, near 

Carlsbad, N. Mex 326 discharge measurements of 363 diversions from, between Red Bluff 

Reservoir and Imperial, Tex 346 near Acme, N. Mex 322 near Anton Chico, N. Mex 318 near Artesia, N. Mex 324 near Girvin, Tex 334 near Lake Arthur, N. Mex 323 near Malaga, N. Mex 329 

near Orla, Tex 331 near Pecos, N. Mex 317 near Puerto de Luna, N. Mex 320 near Sheffield, Tex 335 Pedernales River near Johnson City, Tex. 169

Phantom Lake Spring, Tex., discharge measurements of 363 Piedra Pass ditch, Colo., diversion by 244 Piney Creek, Tex., discharge measure- ment of 360 Pinos Creek near Del Norte, Colo 248 Plainview, Tex., White River at 105 Platoro, Colo., Conejos River at 263 Plum Creek near Luling, Tex 184 Possum Kingdom Reservoir near Graford, Tex 93 

Prado ditch, N. Mex., diversion by 288 Prairie Creek, Tex., discharge measure- ment of 359 

Publications on stream flow by Geological Survey 6-9, 11 

by State agencies 10-11 Puerto de Luna, N. Mex., Pecos River near 320 

Questa, N. Mex., Cabresto Creek near 281 

Llano ditch near 282 Red River near 280 Quicksand Creek, Tex., discharge measurements of 358 Quitman, Tex., Lake Fork Sabine River near 32 

Raber-Lohr ditch, Colo., diversion by.. 244 Red Bluff, N. Mex., Delaware River near 344 Pecos River at...., 3 330 Red Bluff Reservoir, Tex., contents of 241,243 

Red River near Questa, N. Mex 280 near Red River, N. Mex 279 

Reeves County Water Improvement District No. 2 Canal, Tex., monthly

diversion through 346 Refugio, Tex., Mission River at 201 Richland Creek near Richland, Tex 71 Richmond, Tex., Brazos River at 102 Dry Creek near 122-123 Richmond Irrigation Co.i.s canal near. 121 

Page Richmond Irrigation Co.'s canal near 

Richmond, Tex 121 Rio Bonito at Hondo, N. Mex 340 Rio Chama at Park View, N. Mex 290 

below El Vado Dam, N. Mex 291 

near Abiquiu, N. Mex 292 

near Chamita, N. Mex 293 

Rio Felix at old highway bridge, near

Hagerman, N. Mex 341 discharge measurements of 363 Rio Grande above mouth of Trinchera 

Creek, near La Sauses, Colo 224 at Alamosa, Colo 223 at Albuquerque, N. Mex 233 at Cochiti, N. Mex 230 at Embudo, N. Mex 228 at Otowi Bridge, near San Ildefonso, N. Mex 229 

at San Acacia, N. Mex 236 at San Felipe, N. Mex 231 at San Marcial, N. Mex 237 at Thirtymile Bridge, nearCreede, Colo, 219 

at Wason, below Creede, Colo 220 below Caballo Dam, N. Mex 239 

below Elephant Butte Dam, N. Mex 238 

below Taos Junction Bridge, near

Taos, N. Mex 227 near Belen, N. Mex 234 near Bernalillo, N. Mex 232 near Bernardo, N. Mex 235 near Cerro, N. Mex 226 near Del Norte, Colo 221 near Lobatos, Colo 225 near Monte Vista, Colo 222 South Fork, at South Fork, Colo 247 Rio Grande Basin, N. Mex.-Tex., discharge measurements in 361-364 gaging-station records In 219-351 

reservoirs in, contents of 240-243 Rio Hondo (tributary to Pecos River) at Diamond A Ranch, near Roswell, 

N. Mex 339 

discharge measurements of, 363 Rio Hondo (tributary to Rio Grande) at 

Arroyo Hondo, N. Mex • 284 near Valdez, N. Mex 283 Rio Lucero, N. Mex., diversions from 288 near Arroyo Seco, N. Mex 287 Rio Ojo Caliente at La Madera, N. Mex 296 

Rio Pueblo de Taos near Taos, N. Mex 285 Rio Puerco at Cabezon, N. Mex 307 at Rio Puerco, N. Mex 308 near Bernardo, N. Mex 309 

near Cabezon, N. Mex 306 Rio Ruidoso at Hondo, N. Mex 338 Rio Salado near San Acacia, N. Mex 314 Rio Santa Cruz at Cundiyo, N. Mex 297 

at Riverside, N. Mex 298 

Rio Taos at Los Cordovas, N. Mex 286 Rio Tesuque above diversions, near Santa Fe, N. Mex 301 Rio Tularosa near Bent, N. Mex 355 near Tularosa, N. Mex 356 Riverside, N. Mex., Rio Santa Cruz at 298 

Riverside, Tex., Trinity River at 56 Roanoke, Tex., Denton Creek near 66 Robert Lee, Tex., Colorado River at 129 

Rock Creek near Monte Vista, Colo 249 

Rockland, Tex., Neches River near 38 Rockwall, Tex., East Fork Trinity River near 68 Romayor, Tex., Trinity River at 57 Rosser, Tex., Trinity River near 53 Roswell, N. Mex., Rio Hondo near 339 

Ruliff, Tex., Sabine River near 31 Runoff in inches, definition of 1 

Sabinal River near Sabinal, Tex 216 Sabine River at Logansport, La 28 Lake Fork, near Quitman, Tex 32 near Bon Wier, Tex 30 near Gladewater, Tex 3, 26 

near Milan, Tex 29 

near Mineola, Tex 25 

near Ruliff, Tex 31 near Tatum, Tex 27 Sabine River Basin, Tex., discharge measurements in 358 
370 INDEX 

Page Page 

Sabine River Basin, Tex., gaging- Selma, Tex., Cibolo Creek at 199 

station records in 25-34 Seymour, Tex., Brazos River at 91 

Saguache Creek near Saguache, Colo 251 Shawnee Creek, Tex., discharge measureSalado Creek, Tex., discharge measure- ment of 359 

ments of 359,360 Sheffield, Tex., Pecos River near 335 

Salado Springs Nos. 1, 2, 3, 4, 5. Tex., Smithville, Tex., Colorado River at 135 

discharge measurements of 359 Dry Creek near 170 

Salt (Screwbean) Draw near Orla, Tex 345 Socorro main canal north at San Acacia, 

Salt Fork. See Brazos River, Salt Fork. N. Mex 315 

San Acacia, NT-Mex., Rio Grande at • 236 Socorro main canal south near San 

Rio Salado near 314 Antonio, N. Mex 315 

Socorro main canal north at 315 Somerville, Tex., Yegua Creek near 119 

San Angelo, Tex., Concho River near 148 South Bend, Tex., Brazos River near 92 

Lake Nasworthy near 146 South Concho Irrigation Co.'s canal at 

North Concho River at 156 Christoval, Tex 150 

South Conchs River at 147 South Concho River at Christoval, Tex 145 

San Antonio, N. Mex., Elmendorf Interior at San Angelo, Tex 147 

drain near 316 discharge measurements of 360 

San Antonio Riverside drain near 315 South Fork, Colo., South Fork Rio Grande 

Socorro main canal south near 315 at 247 

San Antonio, Tex., Medina Lake near...189-196 South San Gabriel River, Tex., discharge 

Medina River near 197 measurement of 360 

San Antonio River at 186 South Texas Water Co.'s canal, Tex., 

San Antonio River (Guadalupe River discharge measurements of 360 

Basin) at Goliad, Tex 188 Splendora, Tex., Caney Creek near 79 

at San Antonio, Tex 186 Peach Creek at 78 

near Falls City, Tex 187 Spring Branch, Tex., Guadalupe River 

San Antonio River (Rio Grande Basin) near 177 

at mouth, near Manassa, Colo 267 Spring Creek (Colorado River Basin), 

at Ortiz, Colo 266 discharge measurement of 360 

San Antonio Riverside drain near San near Tankersly, Tex 152 

Antonio, N. Mex 315 Spring Creek (San Jacinto River Basin) 

near San Marcial, N. Mex 316 near Spring, Tex 75 

San Felipe, N. Mex., Rio Grande at 231 Squaw Pass ditch, Colo., diversion by 244 

San Felipe, Tex., Brazos River near 101 Stage-discharge relation, definition of 1 

San Francisco Riverside drain, N. Mex., Sterling City, Tex., North Concho Rixier 

discharge measurements of 361-362 at 154 

San Gabriel River at Georgetown, Tex... 118 Striker Creek near Summerfield, Tex 44 

San Ildefonso, N. Mex., Rio Grande near 229 Summerfield, Tex., Striker Creek near 44 

Well ditch at 302 

San Jacinto River, East Fork, near Tabor ditch, Colo., diversion by 244 

Cleveland, Tex 77 Tankersly, Tex., Middle Concho River 

near Huffman, Tex 74 near 151 

West Fork, near Conroe, Tex 72 Spring Creek near 152 

near Humble, Tex 73 Taos, N. Mex., Rio Pueblo de Taos near 285 

San Jacinto River Basin, Tex., gaging- Rio Grande near 227 

station records in 72-85 Tarbell ditch, Colo., diversion by 244 

San Jose River at Correo, N. Mex 313 Tatum, Tex., Sabine River near 27 

near Grants, N. Mex 312 Tenorlo ditch, N. Mex., diversion by 288 

San Luis, Colo., Culebra Creek at 269 Terms„ definition of 1-2 

Culebra Creek below 270 Terrace Reservoir, Colo., Alamosa Creek 

San Luis Valley, Colo., closed basin above 255 

in, gaging-station records for Alamosa Creek below 256 

streams in 250-254 Three Rivers, Tex., Nueces River near 208 

San Marcial, N. Mex., Rio Grande at.... 237 Tijeras Creek near Albuquerque, N. Mex 305 

San Antonio Riverside drain near 316 Tilden, Tex., Nueces River near 207 

San Marcos River at Luling, Tex 182 Toyah Creek below Toyah Lake, near 

San Marcos Springs, Tex., discharge Pecos, Tex 348 

measurements of 361 Toyahvale, Tex., Madera Canyon near 347 

San Pedro Springs, Tex., discharge San Solomon Springs at 349 

measurements of 364 Treasure Pass ditch, Colo., diversion 

San Saba, Tex., Colorado River near 3, 132 by 244 

San Saba River at 163 Trinchera Creek above Mountain Home 

San Saba River at Menard, Tex 162 Reservoir, near Fort Garland, 

at San Saba, Tex 163 Colo 259 

discharge measurement of 360 above Turners Ranch, near Fort GarSan Solomon Springs at Toyahvale, Tex 349 land, Colo 258 

Sandy Creek (tributary to Angelina below Smith Reservoir, near Blanca, 

River), Tex., discharge measure- Colo 260 

ment of 359 Trinity River at Dallas, Tex 52 

Sandy Creek (tributary to Shawnee Creek) at Liberty, Tex 58 

Tex., discharge measurement of 359 at Riverside, Tex 56 

Sangre de Cristo Creek near Fort Gar- at Romayor, Tex 57 

land, Colo 261 Clear Fork, at Fort Worth, Tex 63 

Santa Fe, N. Mex., Mitchell ditch near 302 near Aledo, Tex 61 

Rio Tesuque near 301 near Benbrook, Tex 62 

Santa Fe Creek near 303 East Fork, near Rockwall, Tex 68 

Santa Fe Creek, N. Mex., discharge Elm Fork, near Carrollton, Tex 65 

measurements of 361 near Midway, Tex 55 

near Santa Fe, N. Mex 303 near Oakwood, Tex 54 

Santa Rosa, N. Mex., Pecos River at 319 near Rosser, Tex 53 

Santistevan Creek near Costilla, N. Mex 276 West Fork, at Fort Worth, Tex 50 

Screwbean Draw. See Salt Draw. at Grand Prairie, Tex 51 

Seco ditch, N. MeY77 diversion by 288 near Boyd, Tex 48 

Second-feet per square mile, definition Trinity River Basin, Tex., discharge 

of 1 measurements in 359 

Second-foot, definition of 1 gaging-station records in 47-71 

Second-foot-day, definition of 1 Tularosa, N. Mex., Hio Tularosa near 356 
		

INDEX 371 

Page Page Tularosa Valley, N. Mex., discharge Well ditch at San Ildefonsc, N. Hex.... 302 

measurements in 364 West Nueces River near Brackettville, 

gaging-station records In 355-357 Tex 212 

West Sandia Springs, Tex., discharge 

Ute Creek near Fort Garland. Colo 262 measurements of 363 

Uvalde, Tex., Leona River spring flow West side canal, N. Mex., discharge 

near 217 measurements of 362 

Nueces River below 203 lateral from, discharge measurements 

of 362 

Valdez, N. Mex., Rio Hondo near 283 Westfield, Tex., Cypress Creek near.... 76 

Valera, Tex., Hords Creek Reservoir Wharton, Tex., Colorado River at 138 

near 161 Whiskey Chltto Creek near Oberlin, La.. 21 

Victoria, Tex., Coleto Creek neap 185 White Oak Creek, Tex., discharge 

Guadalupe River at 179 measurement of 358 

Villa Grove, Colo.. Kerber Creek near.. 250 White River at Plainview, Tex 10S 

Village Creek near Kountze, Tex 46 Whiteoak Bayou at Houston, Tex 84 

Whitney, Tex., Brazos River near 96 

Waco. Tex., Brazos River at 97 Whitsett, Tex., Atacosa River at 218 

Wagon Wheel Gap, Colo., Goose Creek Willow Creek near Park View, 

near 246 N. Hex 294 

Walnut Creek, Tex., discharge measure- Wimberley, Tex., Blanco River 

ments of 363 at 183 

Ward County Irrigation District No. 1 Winchell, Tex., Colorado River 

Canal. Tex., monthly diversion at 131 

through 346 Work, division of 14 

Ward County Ward Improvement District scope of 

No. 2 Canal, Tex., monthly diversion through 346 Yegua Creek near Somerville, 

Ward County Water Improvement District Tex 119 

No. 3 Canal, Tex., monthly di- Youngsport, Tex., Lampasas River 

version through 346 at 117 

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