Edwards-Plateau Climate Division Reservoirs: Monitored Water Supply Reservoirs are 34.7% full on 2025-05-25

Historical Data

Date Percent Full Reservoir Storage
(acre-ft)
Conservation Storage
(acre-ft)
Conservation Capacity
(acre-ft)
Today 2025-05-25 34.7 1,615,864 1,464,267 4,217,160
Yesterday 2025-05-24 34.6 1,609,376 1,457,730 4,217,160
2 days ago 2025-05-23 34.5 1,605,245 1,453,514 4,217,160
1 week ago 2025-05-18 34.7 1,614,388 1,462,357 4,217,160
1 month ago 2025-04-25 33.4 1,630,671 1,424,606 4,261,647
3 months ago 2025-02-25 34.5 1,706,322 1,471,758 4,261,647
6 months ago 2024-11-25 36.3 1,773,406 1,546,366 4,261,647
1 year ago 2024-05-25 36.6 1,738,959 1,543,532 4,217,160
*

 Percent Full is based on Conservation Storage and Conservation Capacity and doesn't account for storage in flood pool.

Area 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)
Amistad 1 Water Supply and Flood Control 28.3 1,048.55 -68.45 625,138 512,341 1,813,408 16,878
Brady Creek Water Supply 30.3 1,727.93 -15.07 10,338 8,716 28,808 857
Buchanan Water Supply 55.2 998.55 -19.45 467,698 454,036 822,207 15,185
E V Spence Water Supply 15.3 1,850.20 -47.80 79,387 79,387 517,272 4,474
Inks Water Supply 94.8 887.10 -0.90 13,296 13,013 13,729 781
Lyndon B Johnson Water Supply 98.3 824.71 -0.29 129,757 110,917 112,778 6,405
Marble Falls Water Supply 95.2 736.40 -0.60 7,233 7,233 7,597 602
Nasworthy Water Supply 92.5 1,871.75 -0.45 9,390 8,897 9,615 1,274
O C Fisher Water Supply and Flood Control 9.4 1,870.69 -37.31 10,901 10,900 115,742 967
O H Ivie Water Supply 40.2 1,528.68 -22.82 223,004 223,004 554,340 - n.a. -
Oak Creek Water Supply 27.0 1,981.33 -18.67 10,723 10,573 39,210 854
Twin Buttes Water Supply 13.8 1,906.68 -33.52 28,999 25,250 182,454 1,902
footnotes
1

Lake Amistad straddles the border of Texas and Mexico. By treaty, Texas has rights 56.2% of the total conservation capacity. The fraction of the actual storage that belongs to Texas is formally determined biweekly by the International Boundary Water Commission (IBWC). The IBWC is the legal repository of data related to this lake for treaty purposes and official versions of the datasets should be obtained directly from them. Conservation capacity is based on 56.2% of total conservation capacity. Conservation storage is based on the bi-weekly changing Texas fraction.