Colorado River Basin Reservoirs: Monitored Water Supply Reservoirs are 61.4% full on 2026-01-27

Historical Data

Date Percent Full Reservoir Storage
(acre-ft) 		Conservation Storage
(acre-ft) 		Conservation Capacity
(acre-ft)
Today 2026-01-27 61.4 2,525,345 2,468,210 4,019,576
Yesterday 2026-01-26 61.4 2,525,412 2,468,277 4,019,576
2 days ago 2026-01-25 61.5 2,528,441 2,471,306 4,019,576
1 week ago 2026-01-20 61.3 2,522,354 2,465,219 4,019,576
1 month ago 2025-12-27 62.6 2,571,902 2,514,767 4,019,576
3 months ago 2025-10-27 63.3 2,603,032 2,545,897 4,019,576
6 months ago 2025-07-27 69.1 2,834,680 2,776,940 4,019,576
1 year ago 2025-01-27 44.9 1,860,403 1,803,268 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 97.7 492.45 -0.35 24,031 23,422 23,972 1,560
Brady Creekas of 2026-01-26 Water Supply 97.5 1,742.60 -0.40 29,699 28,077 28,808 1,993
Brownwoodas of 2026-01-26 Water Supply 83.6 1,421.57 -3.03 109,368 109,368 130,868 6,108
Buchanan Water Supply 93.3 1,017.40 -2.60 822,666 809,004 866,694 21,952
Champion Creekas of 2026-01-26 Water Supply 41.2 2,062.02 -20.98 17,149 17,149 41,580 847
Colemanas of 2026-01-26 Water Supply 84.5 1,714.13 -3.37 32,173 32,155 38,075 1,695
Colorado City Water Supply 55.3 2,059.41 -10.79 17,004 17,004 30,758 - n.a. -
E V Spence Water Supply 12.2 1,846.31 -51.69 63,172 63,172 517,272 3,888
Hords Creekas of 2026-01-26 Water Supply and Flood Control 55.9 1,891.23 -8.77 4,537 4,534 8,109 319
Inks Water Supply 94.6 887.07 -0.93 13,273 12,990 13,729 780
J B Thomasas of 2026-01-26 Water Supply 29.5 2,231.71 -26.29 59,732 59,059 199,931 3,710
Lyndon B Johnson Water Supply 97.1 824.49 -0.51 128,350 109,510 112,778 6,384
Marble Falls Water Supply 95.5 736.44 -0.56 7,257 7,257 7,597 602
Nasworthyas of 2026-01-26 Water Supply 85.9 1,871.75 -0.96 8,750 8,257 9,615 1,236
O C Fisheras of 2026-01-24 Water Supply and Flood Control 14.8 1,875.95 -32.05 17,088 17,087 115,742 1,346
O H Ivieas of 2026-01-26 Water Supply 46.5 1,531.91 -19.59 257,782 257,782 554,340 - n.a. -
Oak Creekas of 2026-01-26 Water Supply 19.3 1,977.13 -22.87 7,701 7,551 39,210 665
Travis Water Supply and Flood Control 78.6 667.52 -13.48 879,775 862,743 1,098,044 15,857
Twin Buttes Water Supply and Flood Control 11.7 1,904.48 -35.72 25,090 21,341 182,454 1,678