Edwards-Plateau Climate Division Reservoirs: Monitored Water Supply Reservoirs are 33.0% full on 2025-04-15

Historical Data

Date Percent Full Reservoir Storage
(acre-ft)
Conservation Storage
(acre-ft)
Conservation Capacity
(acre-ft)
Today 2025-04-15 33.0 1,634,871 1,405,673 4,261,647
Yesterday 2025-04-14 33.1 1,639,238 1,408,845 4,261,647
2 days ago 2025-04-13 33.2 1,648,415 1,415,720 4,261,647
1 week ago 2025-04-08 33.5 1,660,864 1,426,628 4,261,647
1 month ago 2025-03-15 34.2 1,692,616 1,457,563 4,261,647
3 months ago 2025-01-15 35.1 1,728,391 1,497,053 4,261,647
6 months ago 2024-10-15 35.8 1,734,917 1,509,974 4,217,160
1 year ago 2024-04-15 31.1 1,520,160 1,325,985 4,261,647
*

 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 25.1 1,049.76 -67.24 645,466 455,068 1,813,408 17,416
Brady Creek Water Supply 31.3 1,728.36 -14.64 10,651 9,029 28,808 883
Buchanan Water Supply 54.6 999.80 -20.20 486,925 473,263 866,694 15,591
E V Spence Water Supply 15.7 1,850.66 -47.34 81,457 81,457 517,272 4,525
Inks Water Supply 96.2 887.35 -0.65 13,494 13,211 13,729 793
Lyndon B Johnson Water Supply 98.2 824.69 -0.31 129,628 110,788 112,778 6,403
Marble Falls Water Supply 95.5 736.44 -0.56 7,257 7,257 7,597 602
Nasworthy Water Supply 91.3 1,871.66 -0.54 9,276 8,783 9,615 1,267
O C Fisher Water Supply and Flood Control 7.3 1,867.92 -40.08 8,504 8,503 115,742 785
O H Ivie Water Supply 38.9 1,527.97 -23.53 215,795 215,795 554,340 - n.a. -
Oak Creek Water Supply 25.6 1,980.69 -19.31 10,172 10,022 39,210 824
Twin Buttes Water Supply 6.8 1,898.39 -41.81 16,246 12,497 182,454 1,257
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.