Colorado River Basin Reservoirs: Monitored Water Supply Reservoirs are 65.7% full on 2025-09-17

Historical Data

Date Percent Full Reservoir Storage
(acre-ft) 		Conservation Storage
(acre-ft) 		Conservation Capacity
(acre-ft)
Today 2025-09-17 65.7 2,698,896 2,641,761 4,019,576
Yesterday 2025-09-16 65.8 2,700,642 2,643,507 4,019,576
2 days ago 2025-09-15 65.8 2,703,608 2,646,473 4,019,576
1 week ago 2025-09-10 66.2 2,718,347 2,661,212 4,019,576
1 month ago 2025-08-17 67.8 2,782,514 2,725,379 4,019,576
3 months ago 2025-06-17 45.5 1,887,132 1,829,131 4,019,576
6 months ago 2025-03-17 43.8 1,818,615 1,761,480 4,019,576
1 year ago 2024-09-17 47.0 1,926,594 1,869,459 3,975,089
*

 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 96.0 492.19 -0.61 23,628 23,019 23,972 1,545
Brady Creek Water Supply 93.0 1,741.95 -1.05 28,424 26,802 28,808 1,936
Brownwood Water Supply 91.4 1,423.20 -1.40 119,598 119,598 130,868 6,444
Buchanan Water Supply 96.4 1,018.61 -1.39 849,357 835,695 866,694 22,165
Champion Creek Water Supply 43.9 2,063.25 -19.75 18,260 18,260 41,580 878
Coleman Water Supply 90.6 1,715.49 -2.01 34,517 34,499 38,075 1,749
Colorado City Water Supply 60.1 2,060.74 -9.46 18,497 18,497 30,758 - n.a. -
E V Spence Water Supply 13.9 1,848.49 -49.51 71,911 71,911 517,272 4,243
Hords Creek Water Supply and Flood Control 62.6 1,892.85 -7.15 5,077 5,074 8,109 351
Inks Water Supply 95.0 887.14 -0.86 13,328 13,045 13,729 784
J B Thomas Water Supply 34.8 2,234.41 -23.59 70,229 69,556 199,931 4,066
Lyndon B Johnson Water Supply 98.6 824.76 -0.24 130,077 111,237 112,778 6,409
Marble Falls Water Supply 94.8 736.35 -0.65 7,203 7,203 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 16.5 1,877.35 -30.65 19,094 19,093 115,742 1,505
O H Ivie Water Supply 50.4 1,533.78 -17.72 279,617 279,617 554,340 - n.a. -
Oak Creek Water Supply 22.3 1,978.94 -21.06 8,904 8,754 39,210 745
Travis Water Supply and Flood Control 86.1 672.56 -8.44 962,633 945,601 1,098,044 17,037
Twin Buttes Water Supply 14.1 1,906.93 -33.27 29,466 25,717 182,454 1,929