Colorado River Basin Reservoirs: Monitored Water Supply Reservoirs are 68.1% full on 2026-07-29

Historical Data

Date Percent Full Reservoir Storage
(acre-ft) 		Conservation Storage
(acre-ft) 		Conservation Capacity
(acre-ft)
Today 2026-07-29 68.1 2,794,948 2,736,479 4,019,576
Yesterday 2026-07-28 68.1 2,795,659 2,737,571 4,019,576
2 days ago 2026-07-27 68.1 2,797,011 2,739,304 4,019,576
1 week ago 2026-07-22 68.3 2,839,751 2,745,414 4,019,576
1 month ago 2026-06-29 64.3 2,640,408 2,583,273 4,019,576
3 months ago 2026-04-29 60.2 2,478,267 2,421,132 4,019,576
6 months ago 2026-01-29 61.3 2,523,116 2,465,981 4,019,576
1 year ago 2025-07-29 69.0 2,831,349 2,773,765 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 95.1 492.05 -0.75 23,412 22,803 23,972 1,537
Brady Creek Water Supply 92.4 1,741.85 -1.15 28,241 26,619 28,808 1,926
Brownwood Water Supply 91.9 1,423.30 -1.30 120,243 120,243 130,868 6,464
Buchanan Water Supply 99.4 1,019.77 -0.23 875,199 861,537 866,694 22,398
Champion Creek Water Supply 45.1 2,063.76 -19.24 18,745 18,745 41,580 890
Coleman Water Supply 84.6 1,714.17 -3.33 32,241 32,223 38,075 1,696
Colorado City Water Supply 57.9 2,060.15 -10.05 17,824 17,824 30,758 - n.a. -
E V Spence Water Supply 10.8 1,844.34 -53.66 55,786 55,786 517,272 3,556
Hords Creek Water Supply and Flood Control 51.0 1,889.95 -10.05 4,142 4,139 8,109 296
Inks Water Supply 95.2 887.18 -0.82 13,359 13,076 13,729 790
J B Thomas Water Supply 23.9 2,228.50 -29.50 48,471 47,798 199,931 3,325
Lyndon B Johnson Water Supply 97.7 824.60 -0.40 129,053 110,213 112,778 6,394
Marble Falls Water Supply 95.2 736.40 -0.60 7,233 7,233 7,597 602
Nasworthy Water Supply 85.5 1,871.72 -0.99 8,713 8,220 9,615 1,234
O C Fisher Water Supply and Flood Control 12.6 1,874.04 -33.96 14,608 14,607 115,742 1,230
O H Ivie Water Supply 46.3 1,531.82 -19.68 256,775 256,775 554,340 - n.a. -
Oak Creek Water Supply 16.4 1,975.28 -24.72 6,569 6,419 39,210 589
Travis Water Supply and Flood Control 100.0 681.07 0.07 1,116,410 1,098,044 1,098,044 19,061
Twin Buttes Water Supply and Flood Control 7.8 1,899.69 -40.51 17,924 14,175 182,454 1,336