Colorado River Basin Reservoirs: Monitored Water Supply Reservoirs are 63.4% full on 2025-11-27

Historical Data

Date Percent Full Reservoir Storage
(acre-ft) 		Conservation Storage
(acre-ft) 		Conservation Capacity
(acre-ft)
Today 2025-11-27 63.4 2,606,459 2,548,578 4,019,576
Yesterday 2025-11-26 63.3 2,603,420 2,545,410 4,019,576
2 days ago 2025-11-25 63.2 2,598,943 2,540,765 4,019,576
1 week ago 2025-11-20 62.4 2,563,395 2,506,260 4,019,576
1 month ago 2025-10-27 63.3 2,603,119 2,545,984 4,019,576
3 months ago 2025-08-27 67.1 2,755,268 2,698,133 4,019,576
6 months ago 2025-05-27 43.1 1,789,651 1,730,488 4,019,576
1 year ago 2024-11-27 46.7 1,933,476 1,875,365 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 95.3 492.08 -0.72 23,458 22,849 23,972 1,539
Brady Creek Water Supply 100.0 1,743.32 0.32 31,176 28,808 28,808 2,056
Brownwood Water Supply 87.0 1,422.29 -2.31 113,819 113,819 130,868 6,257
Buchanan Water Supply 97.5 1,019.04 -0.96 858,905 845,243 866,694 22,247
Champion Creek Water Supply 42.1 2,062.41 -20.59 17,519 17,519 41,580 856
Coleman Water Supply 87.4 1,714.78 -2.72 33,283 33,265 38,075 1,726
Colorado City Water Supply 56.9 2,059.87 -10.33 17,510 17,510 30,758 - n.a. -
E V Spence Water Supply 12.9 1,847.25 -50.75 66,868 66,868 517,272 3,976
Hords Creek Water Supply and Flood Control 58.5 1,891.89 -8.11 4,750 4,747 8,109 329
Inks Water Supply 88.5 885.95 -2.05 12,427 12,144 13,729 735
J B Thomas Water Supply 31.5 2,232.76 -25.24 63,702 63,029 199,931 3,849
Lyndon B Johnson Water Supply 98.6 824.75 -0.25 130,013 111,173 112,778 6,408
Marble Falls Water Supply 94.2 736.27 -0.73 7,155 7,155 7,597 599
Nasworthy Water Supply 86.9 1,871.83 -0.88 8,849 8,356 9,615 1,241
O C Fisher Water Supply and Flood Control 15.5 1,876.59 -31.41 17,984 17,983 115,742 1,418
O H Ivie Water Supply 48.3 1,532.76 -18.74 267,557 267,557 554,340 - n.a. -
Oak Creek Water Supply 20.5 1,977.87 -22.13 8,169 8,019 39,210 697
Travis Water Supply and Flood Control 80.1 668.60 -12.40 897,036 880,004 1,098,044 16,106
Twin Buttes Water Supply 12.3 1,905.18 -35.02 26,279 22,530 182,454 1,735