Colorado River Basin Reservoirs: Monitored Water Supply Reservoirs are 61.7% full on 2026-01-11

Historical Data

Date Percent Full Reservoir Storage
(acre-ft) 		Conservation Storage
(acre-ft) 		Conservation Capacity
(acre-ft)
Today 2026-01-11 61.7 2,538,829 2,481,694 4,019,576
Yesterday 2026-01-10 61.8 2,542,479 2,485,344 4,019,576
2 days ago 2026-01-09 61.9 2,544,620 2,487,485 4,019,576
1 week ago 2026-01-04 62.1 2,553,295 2,496,160 4,019,576
1 month ago 2025-12-11 63.0 2,590,276 2,533,141 4,019,576
3 months ago 2025-10-11 64.0 2,628,183 2,571,048 4,019,576
6 months ago 2025-07-11 60.3 2,479,518 2,422,383 4,019,576
1 year ago 2025-01-11 45.4 1,880,358 1,823,223 4,019,576
*

 Percent Full is based on Conservation Storage and Conservation Capacity and doesn't account for storage in flood pool.

Area Map

recent reservoir storage map

Reservoir Storage

Reservoir Type Percent Full Water Level
(ft) 		Height Above Conservation Pool
(ft) 		Reservoir Storage
(acre-ft) 		Conservation Storage
(acre-ft) 		Conservation Capacity
(acre-ft) 		Surface Area
(acres)
Austin Water Supply 97.4 492.40 -0.40 23,953 23,344 23,972 1,557
Brady Creek Water Supply 98.0 1,742.68 -0.32 29,849 28,227 28,808 1,999
Brownwood Water Supply 84.1 1,421.68 -2.92 110,041 110,041 130,868 6,131
Buchanan Water Supply 94.6 1,017.90 -2.10 833,664 820,002 866,694 22,040
Champion Creek Water Supply 41.4 2,062.10 -20.90 17,219 17,219 41,580 849
Coleman Water Supply 85.0 1,714.25 -3.25 32,377 32,359 38,075 1,699
Colorado City Water Supply 55.5 2,059.47 -10.73 17,070 17,070 30,758 - n.a. -
E V Spence Water Supply 12.4 1,846.52 -51.48 63,990 63,990 517,272 3,908
Hords Creek Water Supply and Flood Control 56.3 1,891.34 -8.66 4,572 4,569 8,109 321
Inks Water Supply 95.0 887.13 -0.87 13,320 13,037 13,729 784
J B Thomas Water Supply 30.0 2,231.94 -26.06 60,589 59,916 199,931 3,741
Lyndon B Johnson Water Supply 98.5 824.73 -0.27 129,885 111,045 112,778 6,406
Marble Falls Water Supply 94.9 736.36 -0.64 7,209 7,209 7,597 601
Nasworthy Water Supply 86.3 1,871.78 -0.93 8,787 8,294 9,615 1,238
O C Fisher Water Supply and Flood Control 14.9 1,876.07 -31.93 17,252 17,251 115,742 1,356
O H Ivie Water Supply 46.9 1,532.10 -19.40 259,942 259,942 554,340 - n.a. -
Oak Creek Water Supply 19.5 1,977.30 -22.70 7,809 7,659 39,210 673
Travis Water Supply and Flood Control 78.2 667.28 -13.72 875,976 858,944 1,098,044 15,800
Twin Buttes Water Supply and Flood Control 11.8 1,904.62 -35.58 25,325 21,576 182,454 1,688