Brownsville Area Reservoirs: Monitored Water Supply Reservoirs are 26.8% full on 2025-10-08

Historical Data

Date Percent Full Reservoir Storage
(acre-ft)
Conservation Storage
(acre-ft)
Conservation Capacity
(acre-ft)
Today 2025-10-08 26.8 1,095,998 905,412 3,375,775
Yesterday 2025-10-07 26.8 1,095,949 905,382 3,375,775
2 days ago 2025-10-06 26.8 1,096,580 905,925 3,375,775
1 week ago 2025-10-01 27.0 1,102,553 911,026 3,375,775
1 month ago 2025-09-08 26.3 1,074,777 887,652 3,375,775
3 months ago 2025-07-08 24.1 1,017,061 813,864 3,375,775
6 months ago 2025-04-08 21.2 1,006,978 717,072 3,375,775
1 year ago 2024-10-08 20.9 1,006,951 704,894 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 35.9 1,057.53 -59.47 796,265 651,390 1,813,408 21,279
Falcon 1 Water Supply 16.3 254.62 -46.58 299,733 254,022 1,562,367 20,449
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.