Rio-Grande River Basin Reservoirs: Monitored Water Supply Reservoirs are 24.6% full on 2025-07-05

Historical Data

Date Percent Full Reservoir Storage
(acre-ft)
Conservation Storage
(acre-ft)
Conservation Capacity
(acre-ft)
Today 2025-07-05 24.6 1,053,137 864,999 3,520,940
Yesterday 2025-07-04 24.5 1,048,994 861,556 3,520,940
2 days ago 2025-07-03 24.3 1,042,009 855,585 3,520,940
1 week ago 2025-06-28 23.7 1,025,023 833,462 3,520,940
1 month ago 2025-06-05 23.3 987,783 819,594 3,520,940
3 months ago 2025-04-05 22.2 1,072,486 782,417 3,520,940
6 months ago 2025-01-05 21.5 1,076,501 756,902 3,520,940
1 year ago 2024-07-05 19.8 973,779 698,254 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 30.5 1,051.22 -65.78 671,900 552,541 1,813,408 18,126
Falcon 1 Water Supply 15.3 255.02 -46.18 308,091 239,312 1,562,367 20,862
Red Bluff Water Supply 50.4 2,816.19 -11.91 73,146 73,146 145,165 4,818
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.