Colorado River Basin Reservoirs: Monitored Water Supply Reservoirs are 60.6% full on 2026-03-16

Historical Data

Date Percent Full Reservoir Storage
(acre-ft) 		Conservation Storage
(acre-ft) 		Conservation Capacity
(acre-ft)
Today 2026-03-16 60.6 2,494,859 2,437,724 4,019,576
Yesterday 2026-03-15 60.7 2,495,157 2,438,022 4,019,576
2 days ago 2026-03-14 60.6 2,494,809 2,437,674 4,019,576
1 week ago 2026-03-09 60.7 2,496,419 2,439,284 4,019,576
1 month ago 2026-02-16 61.1 2,512,463 2,455,328 4,019,576
3 months ago 2025-12-16 62.9 2,583,474 2,526,339 4,019,576
6 months ago 2025-09-16 65.8 2,700,293 2,643,158 4,019,576
1 year ago 2025-03-16 43.9 1,821,272 1,764,137 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 97.4 492.40 -0.40 23,953 23,344 23,972 1,557
Brady Creekas of 2026-03-15 Water Supply 96.6 1,742.47 -0.53 29,444 27,822 28,808 1,983
Brownwoodas of 2026-03-15 Water Supply 83.4 1,421.53 -3.07 109,124 109,124 130,868 6,100
Buchanan Water Supply 94.7 1,017.92 -2.08 834,105 820,443 866,694 22,043
Champion Creekas of 2026-03-15 Water Supply 40.7 2,061.73 -21.27 16,908 16,908 41,580 840
Colemanas of 2026-03-15 Water Supply 83.9 1,714.01 -3.49 31,970 31,952 38,075 1,690
Colorado City Water Supply 54.1 2,059.09 -11.11 16,652 16,652 30,758 - n.a. -
E V Spence Water Supply 11.8 1,845.82 -52.18 61,278 61,278 517,272 3,839
Hords Creekas of 2026-03-15 Water Supply and Flood Control 55.6 1,891.16 -8.84 4,514 4,511 8,109 318
Inks Water Supply 95.1 887.15 -0.85 13,335 13,052 13,729 789
J B Thomasas of 2026-03-15 Water Supply 28.3 2,231.02 -26.98 57,205 56,532 199,931 3,616
Lyndon B Johnson Water Supply 99.0 824.83 -0.17 130,526 111,686 112,778 6,416
Marble Falls Water Supply 94.4 736.30 -0.70 7,173 7,173 7,597 600
Nasworthyas of 2026-03-15 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 14.5 1,875.69 -32.31 16,742 16,741 115,742 1,336
O H Ivieas of 2026-03-15 Water Supply 45.6 1,531.44 -20.06 252,527 252,527 554,340 - n.a. -
Oak Creekas of 2026-03-15 Water Supply 18.7 1,976.78 -23.22 7,467 7,317 39,210 650
Travis Water Supply and Flood Control 75.8 665.57 -15.43 849,304 832,272 1,098,044 15,397
Twin Buttes Water Supply and Flood Control 11.3 1,904.02 -36.18 24,320 20,571 182,454 1,644