Colorado River Basin Reservoirs: Monitored Water Supply Reservoirs are 59.7% full on 2026-04-01

Historical Data

Date Percent Full Reservoir Storage
(acre-ft) 		Conservation Storage
(acre-ft) 		Conservation Capacity
(acre-ft)
Today 2026-04-01 59.7 2,455,847 2,398,712 4,019,576
Yesterday 2026-03-31 59.7 2,458,288 2,401,153 4,019,576
2 days ago 2026-03-30 59.8 2,460,707 2,403,572 4,019,576
1 week ago 2026-03-25 60.1 2,473,889 2,416,754 4,019,576
1 month ago 2026-03-01 60.7 2,495,322 2,438,187 4,019,576
3 months ago 2026-01-01 62.3 2,559,385 2,502,250 4,019,576
6 months ago 2025-10-01 64.7 2,659,214 2,602,079 4,019,576
1 year ago 2025-04-01 43.2 1,794,417 1,737,282 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 97.3 492.39 -0.41 23,938 23,329 23,972 1,556
Brady Creek Water Supply 94.9 1,742.23 -0.77 28,959 27,337 28,808 1,963
Brownwood Water Supply 81.9 1,421.21 -3.39 107,182 107,182 130,868 6,034
Buchanan Water Supply 94.0 1,017.65 -2.35 828,160 814,498 866,694 21,996
Champion Creek Water Supply 40.1 2,061.44 -21.56 16,659 16,659 41,580 834
Coleman Water Supply 82.7 1,713.74 -3.76 31,515 31,497 38,075 1,680
Colorado City Water Supply 53.3 2,058.84 -11.36 16,383 16,383 30,758 - n.a. -
E V Spence Water Supply 11.6 1,845.43 -52.57 59,790 59,790 517,272 3,794
Hords Creek Water Supply and Flood Control 54.6 1,890.89 -9.11 4,428 4,425 8,109 314
Inks Water Supply 95.8 887.27 -0.73 13,430 13,147 13,729 791
J B Thomas Water Supply 27.4 2,230.52 -27.48 55,412 54,739 199,931 3,555
Lyndon B Johnson Water Supply 99.0 824.82 -0.18 130,462 111,622 112,778 6,415
Marble Falls Water Supply 94.3 736.29 -0.71 7,167 7,167 7,597 599
Nasworthy Water Supply 86.0 1,871.76 -0.95 8,762 8,269 9,615 1,236
O C Fisher Water Supply and Flood Control 14.2 1,875.43 -32.57 16,396 16,395 115,742 1,326
O H Ivie Water Supply 45.1 1,531.19 -20.31 249,731 249,731 554,340 - n.a. -
Oak Creek Water Supply 18.0 1,976.36 -23.64 7,201 7,051 39,210 634
Travis Water Supply and Flood Control 73.8 664.13 -16.87 827,372 810,340 1,098,044 15,069
Twin Buttes Water Supply and Flood Control 10.5 1,903.13 -37.07 22,900 19,151 182,454 1,580