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Water Supply & Reservoir Data

  • Locations
  • Elevations
  • Capacity
  • Surface Area

Reservoir Locations

Reservoirs

River/Stream

River Miles from Gulf

Contributing Drainage Area (square miles)

Possum Kingdom

Brazos

688

14,030

Granbury

Brazos

543

16,113

Limestone

Navasota

350

675

Alan Henry

South Fork of Double Mountain Fork of Brazos

1,056

394

Whitney

Brazos

442

17,623

Belton

Leon

431

3,531

Proctor

Leon

641

1,259

Somerville

Yegua Creek

263

1,007

Stillhouse Hollow

Lampasas

429

1,313

Granger

San Gabriel

388

730

Georgetown

San Gabriel

423

247

Aquilla

Aquilla Creek

440

255

Elevations (mean sea level)

Reservoirs

Top of Dam

Top of Flood Control Pool

Top of Conservation Pool

Possum Kingdom

1,024

N/A

1,000

Granbury

707

N/A

693

Limestone

380

N/A

363

Alan Henry

2,263

N/A

2,220

Whitney

584

571

533

Belton

662

631

594

Proctor

1,206

1,197

1,162

Somerville

280

258

238

Stillhouse Hollow

698

666

622

Granger

555

528

504

Georgetown

861

834

791

Aquilla

583

556

537.5

Capacity (acre-feet)

Reservoirs

Flood Control

Conservation and Sediment

Total Capacity

Permitted Yield (acre-feet)

Possum Kingdom

N/A

556,200

556,220

230,750

Granbury

N/A

136,823

136,823

64,712

Limestone

N/A

215,751

215,751

65,074

Alan Henry

N/A

115,937

115,937

35,000

Whitney

1,372,400

627,100

1,999,500

18,336

Belton

640,000

434,500

1,074,500

100,257

Proctor

341,500

55,590

397,090

19,658

Somerville

337,700

155,062

492,762

48,000

Stillhouse Hollow

390,600

226,060

616,660

67,768

Granger

162,200

54,280

216,480

19,840

Georgetown

87,600

37,010

124,610

13,610

Aquilla

86,700

45,962

132,662

13,896

Surface Area (acres)*

*Some capacity and surface area figures rounded to nearest 100

Reservoirs

Top of Flood Pool

Top of Conservation Pool

Date of Impoundment or Completion

Location (Counties)

Possum Kingdom

N/A

17,700

1941

Young, Stephens, Palo Pinto

Granbury

N/A

8,700

1969

Hood, Parker

Limestone

N/A

13,680

1978

Limestone, Robertson

Alan Henry

N/A

2,884

1994

Garza, Kent

Whitney

49,820

23,560

1951

Hill, Bosque, Johnson

Belton

23,620

12,300

1954

Bell, Coryell

Proctor

14,010

4,610

1962

Comanche

Somerville

24,400

11,460

1967

Lee, Burleson, Washington

Stillhouse Hollow

11,830

6,430

1968

Bell

Granger

11,040

4,400

1980

Williamson

Georgetown

3,220

1,310

1980

Williamson

Aquilla

7,000

3,280

1983

Hill