Colorado River Basin Reservoirs: Monitored Water Supply Reservoirs are 63.9% full on 2026-10-28

Historical Data

Date Percent Full Reservoir Storage
(acre-ft) 		Conservation Storage
(acre-ft) 		Conservation Capacity
(acre-ft)
Today 2026-10-28 63.9 2,625,517 2,568,382 4,019,576
Yesterday 2026-10-27 63.9 2,625,590 2,568,455 4,019,576
2 days ago 2026-10-26 63.9 2,626,425 2,569,290 4,019,576
1 week ago 2026-10-21 64.1 2,634,769 2,577,634 4,019,576
1 month ago 2026-09-28 62.8 2,579,978 2,522,843 4,019,576
3 months ago 2026-07-28 68.1 2,795,730 2,737,642 4,019,576
6 months ago 2026-04-28 60.3 2,479,280 2,422,145 4,019,576
1 year ago 2025-10-28 63.3 2,602,604 2,545,469 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 96.9 492.33 -0.47 23,845 23,236 23,972 1,553
Brady Creekas of 2026-10-27 Water Supply 83.5 1,740.47 -2.53 25,664 24,042 28,808 1,804
Brownwoodas of 2026-10-27 Water Supply 88.8 1,422.67 -1.93 116,211 116,211 130,868 6,335
Buchanan Water Supply 95.7 1,018.33 -1.67 843,157 829,495 866,694 22,115
Champion Creek Water Supply 45.1 2,063.75 -19.25 18,736 18,736 41,580 890
Colemanas of 2026-10-27 Water Supply 77.3 1,712.50 -5.00 29,465 29,447 38,075 1,614
Colorado City Water Supply 52.7 2,058.67 -11.53 16,203 16,203 30,758 - n.a. -
E V Spence Water Supply 9.3 1,842.12 -55.88 48,274 48,274 517,272 3,226
Hords Creekas of 2026-10-27 Water Supply and Flood Control 44.5 1,888.07 -11.93 3,614 3,611 8,109 267
Inks Water Supply 95.5 887.23 -0.77 13,399 13,116 13,729 791
J B Thomasas of 2026-10-27 Water Supply 20.4 2,226.33 -31.67 41,477 40,804 199,931 3,126
Lyndon B Johnson Water Supply 98.1 824.67 -0.33 129,500 110,660 112,778 6,401
Marble Falls Water Supply 97.8 736.73 -0.27 7,432 7,432 7,597 608
Nasworthyas of 2026-10-27 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 10.4 1,871.81 -36.19 12,032 12,031 115,742 1,056
O H Ivieas of 2026-10-27 Water Supply 40.8 1,529.00 -22.50 226,258 226,258 554,340 - n.a. -
Oak Creekas of 2026-10-27 Water Supply 13.4 1,973.27 -26.73 5,421 5,271 39,210 509
Travis Water Supply and Flood Control 93.5 677.16 -3.84 1,043,656 1,026,624 1,098,044 18,165
Twin Buttes Water Supply and Flood Control 4.2 1,894.16 -46.04 11,490 7,741 182,454 1,018