Brownsville Area Reservoirs: Monitored Water Supply Reservoirs are 20.4% full on 2025-05-05

Historical Data

Date Percent Full Reservoir Storage
(acre-ft)
Conservation Storage
(acre-ft)
Conservation Capacity
(acre-ft)
Today 2025-05-05 20.4 932,661 688,558 3,375,775
Yesterday 2025-05-04 20.4 934,016 689,565 3,375,775
2 days ago 2025-05-03 20.5 936,606 691,496 3,375,775
1 week ago 2025-04-28 20.7 948,132 700,104 3,375,775
1 month ago 2025-04-05 21.4 1,013,991 723,922 3,375,775
3 months ago 2025-02-05 21.1 1,015,038 713,201 3,375,775
6 months ago 2024-11-05 20.5 994,303 693,664 3,375,775
1 year ago 2024-05-05 19.9 1,047,641 670,883 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 25.5 1,048.78 -68.22 629,125 461,668 1,813,408 16,983
Falcon 1 Water Supply 14.5 254.80 -46.40 303,536 226,890 1,562,367 20,636
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.