Colorado River Basin Reservoirs: Monitored Water Supply Reservoirs are 63.9% full on 2026-11-06

Historical Data

Date Percent Full Reservoir Storage
(acre-ft) 		Conservation Storage
(acre-ft) 		Conservation Capacity
(acre-ft)
Today 2026-11-06 63.9 2,627,120 2,569,985 4,019,576
Yesterday 2026-11-05 63.9 2,627,190 2,570,055 4,019,576
2 days ago 2026-11-04 64.0 2,628,184 2,571,049 4,019,576
1 week ago 2026-10-30 63.9 2,625,604 2,568,469 4,019,576
1 month ago 2026-10-06 64.4 2,646,879 2,589,744 4,019,576
3 months ago 2026-08-06 67.7 2,778,333 2,721,198 4,019,576
6 months ago 2026-05-06 60.4 2,484,888 2,427,753 4,019,576
1 year ago 2025-11-06 62.8 2,581,742 2,524,607 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 96.5 492.26 -0.54 23,736 23,127 23,972 1,549
Brady Creekas of 2026-11-05 Water Supply 83.6 1,740.49 -2.51 25,701 24,079 28,808 1,806
Brownwoodas of 2026-11-05 Water Supply 89.0 1,422.72 -1.88 116,528 116,528 130,868 6,345
Buchanan Water Supply 95.8 1,018.35 -1.65 843,600 829,938 866,694 22,118
Champion Creek Water Supply 45.2 2,063.81 -19.19 18,790 18,790 41,580 891
Colemanas of 2026-11-05 Water Supply 77.4 1,712.51 -4.99 29,481 29,463 38,075 1,614
Colorado City Water Supply 53.2 2,058.82 -11.38 16,362 16,362 30,758 - n.a. -
E V Spence Water Supply 9.4 1,842.26 -55.74 48,727 48,727 517,272 3,246
Hords Creekas of 2026-11-05 Water Supply and Flood Control 44.8 1,888.14 -11.86 3,633 3,630 8,109 268
Inks Water Supply 94.9 887.12 -0.88 13,312 13,029 13,729 783
J B Thomasas of 2026-11-05 Water Supply 20.8 2,226.57 -31.43 42,230 41,557 199,931 3,148
Lyndon B Johnson Water Supply 98.5 824.74 -0.26 129,949 111,109 112,778 6,407
Marble Falls Water Supply 98.6 736.83 -0.17 7,493 7,493 7,597 610
Nasworthyas of 2026-11-05 Water Supply 86.0 1,871.76 -0.95 8,762 8,269 9,615 1,236
O C Fisher Water Supply and Flood Control 10.5 1,871.90 -36.10 12,126 12,125 115,742 1,062
O H Ivieas of 2026-11-05 Water Supply 40.7 1,528.93 -22.57 225,546 225,546 554,340 - n.a. -
Oak Creekas of 2026-11-05 Water Supply 13.7 1,973.45 -26.55 5,524 5,374 39,210 516
Travis Water Supply and Flood Control 93.4 677.13 -3.87 1,043,111 1,026,079 1,098,044 18,158
Twin Buttes Water Supply and Flood Control 4.2 1,894.06 -46.14 11,387 7,638 182,454 1,014