Colorado River Basin Reservoirs: Monitored Water Supply Reservoirs are 67.8% full on 2025-08-17

Historical Data

Date Percent Full Reservoir Storage
(acre-ft)
Conservation Storage
(acre-ft)
Conservation Capacity
(acre-ft)
Today 2025-08-17 67.8 2,784,030 2,726,895 4,019,576
Yesterday 2025-08-16 67.9 2,785,583 2,728,448 4,019,576
2 days ago 2025-08-15 68.0 2,788,885 2,731,750 4,019,576
1 week ago 2025-08-10 68.3 2,803,464 2,746,329 4,019,576
1 month ago 2025-07-17 68.6 2,815,385 2,756,504 4,019,576
3 months ago 2025-05-17 42.8 1,779,946 1,721,672 4,019,576
6 months ago 2025-02-17 44.7 1,854,149 1,797,014 4,019,576
1 year ago 2024-08-17 43.5 1,786,732 1,729,597 3,975,089
*

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

Area 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 97.2 1,742.56 -0.44 29,621 27,999 28,808 1,990
Brownwood Water Supply 95.7 1,424.06 -0.54 125,215 125,215 130,868 6,621
Buchanan Water Supply 98.9 1,019.56 -0.44 870,500 856,838 866,694 22,352
Champion Creek Water Supply 45.3 2,063.86 -19.14 18,833 18,833 41,580 892
Coleman Water Supply 93.3 1,716.07 -1.43 35,536 35,518 38,075 1,767
Colorado City Water Supply 62.2 2,061.29 -8.91 19,138 19,138 30,758 - n.a. -
E V Spence Water Supply 14.6 1,849.29 -48.71 75,363 75,363 517,272 4,370
Hords Creek Water Supply and Flood Control 65.9 1,893.59 -6.41 5,343 5,340 8,109 365
Inks Water Supply 94.8 887.10 -0.90 13,296 13,013 13,729 781
J B Thomas Water Supply 36.4 2,235.18 -22.82 73,395 72,722 199,931 4,157
Lyndon B Johnson Water Supply 98.5 824.74 -0.26 129,949 111,109 112,778 6,407
Marble Falls Water Supply 95.1 736.39 -0.61 7,227 7,227 7,597 601
Nasworthy Water Supply 85.2 1,871.70 -1.01 8,689 8,196 9,615 1,232
O C Fisher Water Supply and Flood Control 17.6 1,878.14 -29.86 20,317 20,316 115,742 1,602
O H Ivie Water Supply 52.4 1,534.69 -16.81 290,717 290,717 554,340 - n.a. -
Oak Creek Water Supply 23.4 1,979.56 -20.44 9,338 9,188 39,210 771
Travis Water Supply and Flood Control 89.2 674.49 -6.51 995,982 978,950 1,098,044 17,533
Twin Buttes Water Supply 15.3 1,908.02 -32.18 31,618 27,869 182,454 2,050