Colorado River Basin Reservoirs: Monitored Water Supply Reservoirs are 62.8% full on 2025-12-17

Historical Data

Date Percent Full Reservoir Storage
(acre-ft) 		Conservation Storage
(acre-ft) 		Conservation Capacity
(acre-ft)
Today 2025-12-17 62.8 2,583,272 2,526,137 4,019,576
Yesterday 2025-12-16 62.9 2,583,674 2,526,539 4,019,576
2 days ago 2025-12-15 62.9 2,585,035 2,527,900 4,019,576
1 week ago 2025-12-10 63.1 2,592,324 2,535,189 4,019,576
1 month ago 2025-11-17 62.3 2,560,655 2,503,520 4,019,576
3 months ago 2025-09-17 65.7 2,697,283 2,640,148 4,019,576
6 months ago 2025-06-17 45.5 1,887,132 1,829,131 4,019,576
1 year ago 2024-12-17 46.1 1,909,416 1,852,096 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 96.9 492.33 -0.47 23,845 23,236 23,972 1,553
Brady Creek Water Supply 99.4 1,742.89 -0.11 30,251 28,629 28,808 2,015
Brownwood Water Supply 85.4 1,421.95 -2.65 111,704 111,704 130,868 6,187
Buchanan Water Supply 97.1 1,018.88 -1.12 855,348 841,686 866,694 22,216
Champion Creek Water Supply 41.6 2,062.18 -20.82 17,293 17,293 41,580 851
Coleman Water Supply 86.0 1,714.47 -3.03 32,752 32,734 38,075 1,708
Colorado City Water Supply 56.2 2,059.66 -10.54 17,279 17,279 30,758 - n.a. -
E V Spence Water Supply 12.6 1,846.86 -51.14 65,324 65,324 517,272 3,940
Hords Creek Water Supply and Flood Control 57.3 1,891.57 -8.43 4,647 4,644 8,109 325
Inks Water Supply 95.2 887.17 -0.83 13,351 13,068 13,729 789
J B Thomas Water Supply 30.7 2,232.35 -25.65 62,134 61,461 199,931 3,797
Lyndon B Johnson Water Supply 98.4 824.72 -0.28 129,821 110,981 112,778 6,406
Marble Falls Water Supply 94.7 736.33 -0.67 7,191 7,191 7,597 600
Nasworthy Water Supply 86.5 1,871.80 -0.91 8,812 8,319 9,615 1,239
O C Fisher Water Supply and Flood Control 15.2 1,876.31 -31.69 17,590 17,589 115,742 1,385
O H Ivie Water Supply 47.7 1,532.47 -19.03 264,211 264,211 554,340 - n.a. -
Oak Creek Water Supply 20.0 1,977.58 -22.42 7,982 7,832 39,210 685
Travis Water Supply and Flood Control 79.3 668.03 -12.97 887,893 870,861 1,098,044 15,976
Twin Buttes Water Supply and Flood Control 12.1 1,904.93 -35.27 25,844 22,095 182,454 1,710