Colorado River Basin Reservoirs: Monitored Water Supply Reservoirs are 60.7% full on 2026-03-13

Historical Data

Date Percent Full Reservoir Storage
(acre-ft) 		Conservation Storage
(acre-ft) 		Conservation Capacity
(acre-ft)
Today 2026-03-13 60.7 2,497,212 2,440,077 4,019,576
Yesterday 2026-03-12 60.7 2,498,777 2,441,642 4,019,576
2 days ago 2026-03-11 60.8 2,500,805 2,443,670 4,019,576
1 week ago 2026-03-06 60.7 2,495,887 2,438,752 4,019,576
1 month ago 2026-02-13 61.0 2,510,169 2,453,034 4,019,576
3 months ago 2025-12-13 63.0 2,588,614 2,531,479 4,019,576
6 months ago 2025-09-13 66.0 2,709,241 2,652,106 4,019,576
1 year ago 2025-03-13 44.0 1,827,126 1,769,991 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 96.7 1,742.49 -0.51 29,484 27,862 28,808 1,984
Brownwood Water Supply 83.4 1,421.53 -3.07 109,124 109,124 130,868 6,100
Buchanan Water Supply 94.5 1,017.85 -2.15 832,563 818,901 866,694 22,031
Champion Creek Water Supply 40.7 2,061.74 -21.26 16,916 16,916 41,580 840
Coleman Water Supply 84.0 1,714.02 -3.48 31,987 31,969 38,075 1,691
Colorado City Water Supply 54.4 2,059.16 -11.04 16,729 16,729 30,758 - n.a. -
E V Spence Water Supply 11.9 1,845.92 -52.08 61,663 61,663 517,272 3,849
Hords Creek Water Supply and Flood Control 55.8 1,891.19 -8.81 4,524 4,521 8,109 319
Inks Water Supply 95.9 887.29 -0.71 13,446 13,163 13,729 792
J B Thomas Water Supply 28.4 2,231.07 -26.93 57,386 56,713 199,931 3,623
Lyndon B Johnson Water Supply 98.5 824.74 -0.26 129,949 111,109 112,778 6,407
Marble Falls Water Supply 95.9 736.49 -0.51 7,287 7,287 7,597 603
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 14.5 1,875.76 -32.24 16,835 16,834 115,742 1,339
O H Ivie Water Supply 45.6 1,531.46 -20.04 252,750 252,750 554,340 - n.a. -
Oak Creek Water Supply 18.7 1,976.80 -23.20 7,481 7,331 39,210 651
Travis Water Supply and Flood Control 76.0 665.74 -15.26 851,925 834,893 1,098,044 15,437
Twin Buttes Water Supply and Flood Control 11.4 1,904.19 -36.01 24,605 20,856 182,454 1,657