Colorado River Basin Reservoirs: Monitored Water Supply Reservoirs are 59.9% full on 2026-03-29

Historical Data

Date Percent Full Reservoir Storage
(acre-ft) 		Conservation Storage
(acre-ft) 		Conservation Capacity
(acre-ft)
Today 2026-03-29 59.9 2,464,427 2,407,292 4,019,576
Yesterday 2026-03-28 59.9 2,466,483 2,409,348 4,019,576
2 days ago 2026-03-27 60.0 2,470,004 2,412,869 4,019,576
1 week ago 2026-03-22 60.3 2,479,820 2,422,685 4,019,576
1 month ago 2026-02-28 60.7 2,496,819 2,439,684 4,019,576
3 months ago 2025-12-29 62.5 2,568,057 2,510,922 4,019,576
6 months ago 2025-09-29 64.9 2,664,984 2,607,849 4,019,576
1 year ago 2025-03-29 43.3 1,798,682 1,741,547 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 97.1 492.35 -0.45 23,876 23,267 23,972 1,554
Brady Creek Water Supply 95.1 1,742.26 -0.74 29,020 27,398 28,808 1,965
Brownwood Water Supply 82.1 1,421.25 -3.35 107,424 107,424 130,868 6,043
Buchanan Water Supply 94.1 1,017.70 -2.30 829,260 815,598 866,694 22,005
Champion Creek Water Supply 40.1 2,061.46 -21.54 16,677 16,677 41,580 834
Coleman Water Supply 82.8 1,713.76 -3.74 31,549 31,531 38,075 1,681
Colorado City Water Supply 53.4 2,058.87 -11.33 16,415 16,415 30,758 - n.a. -
E V Spence Water Supply 11.6 1,845.49 -52.51 60,017 60,017 517,272 3,801
Hords Creek Water Supply and Flood Control 54.7 1,890.93 -9.07 4,441 4,438 8,109 315
Inks Water Supply 95.6 887.25 -0.75 13,414 13,131 13,729 791
J B Thomas Water Supply 27.5 2,230.59 -27.41 55,661 54,988 199,931 3,563
Lyndon B Johnson Water Supply 98.8 824.79 -0.21 130,269 111,429 112,778 6,412
Marble Falls Water Supply 93.5 736.18 -0.82 7,101 7,101 7,597 597
Nasworthy Water Supply 85.9 1,871.75 -0.96 8,750 8,257 9,615 1,236
O C Fisher Water Supply and Flood Control 14.2 1,875.46 -32.54 16,436 16,435 115,742 1,327
O H Ivie Water Supply 45.1 1,531.23 -20.27 250,179 250,179 554,340 - n.a. -
Oak Creek Water Supply 18.1 1,976.41 -23.59 7,230 7,080 39,210 636
Travis Water Supply and Flood Control 74.4 664.54 -16.46 833,569 816,537 1,098,044 15,159
Twin Buttes Water Supply and Flood Control 10.6 1,903.28 -36.92 23,139 19,390 182,454 1,591