Brownsville Area Reservoirs: Monitored Water Supply Reservoirs are 26.0% full on 2025-08-02

Historical Data

Date Percent Full Reservoir Storage
(acre-ft)
Conservation Storage
(acre-ft)
Conservation Capacity
(acre-ft)
Today 2025-08-02 26.0 1,092,731 876,228 3,375,775
Yesterday 2025-08-01 26.0 1,094,131 877,337 3,375,775
2 days ago 2025-07-31 26.0 1,095,038 878,053 3,375,775
1 week ago 2025-07-26 25.0 1,090,910 845,222 3,375,775
1 month ago 2025-07-02 23.1 965,498 779,996 3,375,775
3 months ago 2025-05-02 20.5 937,587 692,233 3,375,775
6 months ago 2025-02-02 21.3 1,022,297 718,185 3,375,775
1 year ago 2024-08-02 19.8 950,387 667,020 3,375,775
*

 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 34.2 1,056.30 -60.70 769,829 620,882 1,813,408 20,626
Falcon 1 Water Supply 16.3 255.73 -45.47 322,902 255,346 1,562,367 21,596
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.