Rio-Grande River Basin Reservoirs: Monitored Water Supply Reservoirs are 23.5% full on 2025-05-14

Historical Data

Date Percent Full Reservoir Storage
(acre-ft)
Conservation Storage
(acre-ft)
Conservation Capacity
(acre-ft)
Today 2025-05-14 23.5 1,002,007 826,146 3,520,940
Yesterday 2025-05-13 23.5 1,002,548 826,589 3,520,940
2 days ago 2025-05-12 23.5 1,001,734 825,928 3,520,940
1 week ago 2025-05-07 23.4 997,029 822,193 3,520,940
1 month ago 2025-04-14 21.8 1,049,057 765,902 3,520,940
3 months ago 2025-02-14 22.0 1,053,913 772,901 3,520,940
6 months ago 2024-11-14 21.2 1,055,241 745,983 3,520,940
1 year ago 2024-05-14 20.0 1,011,281 702,777 3,520,940
*

 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 28.5 1,048.73 -68.27 628,298 517,065 1,813,408 16,963
Falcon 1 Water Supply 15.6 255.00 -46.20 307,763 243,135 1,562,367 20,846
Red Bluff Water Supply 45.4 2,814.65 -13.45 65,946 65,946 145,165 4,509
footnotes
1

Lake Amistad and Lake Falcon straddle the border of Texas and Mexico. By treaty, Texas has rights to 56.2% of the total conservation capacity of Amistad and 58.6% of the total conservation capacity of Falcon. 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 the fixed percent of total conservation capacity. Conservation storage is based on the bi-weekly changing Texas share.