Colorado River Basin Reservoirs: Monitored Water Supply Reservoirs are 64.2% full on 2026-10-18

Historical Data

Date Percent Full Reservoir Storage
(acre-ft) 		Conservation Storage
(acre-ft) 		Conservation Capacity
(acre-ft)
Today 2026-10-18 64.2 2,638,229 2,581,094 4,019,576
Yesterday 2026-10-17 64.2 2,639,449 2,582,314 4,019,576
2 days ago 2026-10-16 64.3 2,642,327 2,585,192 4,019,576
1 week ago 2026-10-11 64.3 2,640,603 2,583,468 4,019,576
1 month ago 2026-09-18 63.6 2,614,352 2,557,217 4,019,576
3 months ago 2026-07-18 67.8 2,835,200 2,724,356 4,019,576
6 months ago 2026-04-18 60.1 2,472,650 2,415,515 4,019,576
1 year ago 2025-10-18 63.5 2,609,924 2,552,789 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 96.7 492.29 -0.51 23,783 23,174 23,972 1,550
Brady Creek Water Supply 84.1 1,740.57 -2.43 25,843 24,221 28,808 1,813
Brownwood Water Supply 89.5 1,422.81 -1.79 117,100 117,100 130,868 6,364
Buchanan Water Supply 95.9 1,018.39 -1.61 844,485 830,823 866,694 22,125
Champion Creek Water Supply 45.3 2,063.86 -19.14 18,833 18,833 41,580 892
Coleman Water Supply 77.8 1,712.62 -4.88 29,659 29,641 38,075 1,620
Colorado City Water Supply 53.0 2,058.75 -11.45 16,288 16,288 30,758 - n.a. -
E V Spence Water Supply 9.3 1,842.00 -56.00 47,888 47,888 517,272 3,209
Hords Creek Water Supply and Flood Control 44.9 1,888.19 -11.81 3,647 3,644 8,109 268
Inks Water Supply 94.9 887.12 -0.88 13,312 13,029 13,729 783
J B Thomas Water Supply 20.5 2,226.40 -31.60 41,695 41,022 199,931 3,132
Lyndon B Johnson Water Supply 97.7 824.60 -0.40 129,053 110,213 112,778 6,394
Marble Falls Water Supply 97.2 736.65 -0.35 7,384 7,384 7,597 607
Nasworthy Water Supply 84.9 1,871.67 -1.04 8,652 8,159 9,615 1,230
O C Fisher Water Supply and Flood Control 10.5 1,871.94 -36.06 12,167 12,166 115,742 1,064
O H Ivie Water Supply 41.2 1,529.22 -22.28 228,569 228,569 554,340 - n.a. -
Oak Creek Water Supply 13.5 1,973.33 -26.67 5,456 5,306 39,210 511
Travis Water Supply and Flood Control 94.3 677.64 -3.36 1,052,401 1,035,369 1,098,044 18,273
Twin Buttes Water Supply and Flood Control 4.5 1,894.67 -45.53 12,014 8,265 182,454 1,038