Sulphur River Basin Reservoirs: Monitored Water Supply Reservoirs are 85.8% full on 2026-04-18

Historical Data

Date Percent Full Reservoir Storage
(acre-ft)
Conservation Storage
(acre-ft)
Conservation Capacity
(acre-ft)
Today 2026-04-18 85.8 443,165 342,520 399,063
Yesterday 2026-04-17 85.7 442,550 342,164 399,063
2 days ago 2026-04-16 85.8 443,003 342,358 399,063
1 week ago 2026-04-11 85.9 438,878 342,877 399,063
1 month ago 2026-03-18 84.2 446,816 336,153 399,063
3 months ago 2026-01-18 79.8 421,771 318,517 399,063
6 months ago 2025-10-18 86.6 481,349 345,554 399,063
1 year ago 2025-04-18 99.4 925,789 396,837 399,063
*

 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)
Jim Chapman Water Supply and Flood Control 79.2 436.85 -3.15 240,658 204,883 258,723 16,186
Sulphur Springs Water Supply 84.8 457.41 -1.54 15,044 15,044 17,747 - n.a. -
Wright Patman Water Supply and Flood Control 100.0 223.40 2.80 187,463 122,593 122,593 - n.a. -