Colorado River Basin Reservoirs: Monitored Water Supply Reservoirs are 60.7% full on 2026-03-09

Historical Data

Date Percent Full Reservoir Storage
(acre-ft) 		Conservation Storage
(acre-ft) 		Conservation Capacity
(acre-ft)
Today 2026-03-09 60.7 2,496,845 2,439,710 4,019,576
Yesterday 2026-03-08 60.7 2,497,740 2,440,605 4,019,576
2 days ago 2026-03-07 60.7 2,497,705 2,440,570 4,019,576
1 week ago 2026-03-02 60.6 2,494,174 2,437,039 4,019,576
1 month ago 2026-02-09 61.1 2,513,776 2,456,641 4,019,576
3 months ago 2025-12-09 63.1 2,593,170 2,536,035 4,019,576
6 months ago 2025-09-09 66.3 2,721,784 2,664,649 4,019,576
1 year ago 2025-03-09 44.2 1,833,881 1,776,746 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 96.3 492.24 -0.56 23,705 23,096 23,972 1,547
Brady Creek Water Supply 96.2 1,742.42 -0.58 29,343 27,721 28,808 1,979
Brownwood Water Supply 82.9 1,421.42 -3.18 108,454 108,454 130,868 6,078
Buchanan Water Supply 94.4 1,017.83 -2.17 832,122 818,460 866,694 22,028
Champion Creek Water Supply 40.8 2,061.81 -21.19 16,973 16,973 41,580 842
Coleman Water Supply 83.8 1,713.98 -3.52 31,919 31,901 38,075 1,689
Colorado City Water Supply 54.6 2,059.23 -10.97 16,806 16,806 30,758 - n.a. -
E V Spence Water Supply 12.0 1,846.02 -51.98 62,048 62,048 517,272 3,860
Hords Creek Water Supply and Flood Control 55.5 1,891.13 -8.87 4,504 4,501 8,109 318
Inks Water Supply 95.5 887.22 -0.78 13,391 13,108 13,729 790
J B Thomas Water Supply 28.5 2,231.17 -26.83 57,748 57,075 199,931 3,636
Lyndon B Johnson Water Supply 98.3 824.70 -0.30 129,693 110,853 112,778 6,404
Marble Falls Water Supply 94.9 736.36 -0.64 7,209 7,209 7,597 601
Nasworthy Water Supply 85.5 1,871.72 -0.99 8,713 8,220 9,615 1,234
O C Fisher Water Supply and Flood Control 14.5 1,875.74 -32.26 16,808 16,807 115,742 1,338
O H Ivie Water Supply 45.6 1,531.45 -20.05 252,638 252,638 554,340 - n.a. -
Oak Creek Water Supply 18.8 1,976.86 -23.14 7,522 7,372 39,210 653
Travis Water Supply and Flood Control 76.1 665.78 -15.22 852,543 835,511 1,098,044 15,446
Twin Buttes Water Supply and Flood Control 11.5 1,904.25 -35.95 24,706 20,957 182,454 1,661