Sulphur River Basin Reservoirs: Monitored Water Supply Reservoirs are 86.7% full on 2026-08-16

Historical Data

Date Percent Full Reservoir Storage
(acre-ft)
Conservation Storage
(acre-ft)
Conservation Capacity
(acre-ft)
Today 2026-08-16 86.7 535,372 346,059 399,063
Yesterday 2026-08-15 86.9 536,679 346,727 399,063
2 days ago 2026-08-14 87.1 538,813 347,579 399,063
1 week ago 2026-08-09 88.1 547,361 351,616 399,063
1 month ago 2026-07-16 92.1 607,127 367,429 399,063
3 months ago 2026-05-16 88.0 491,414 351,032 399,063
6 months ago 2026-02-16 84.3 447,276 336,346 399,063
1 year ago 2025-08-16 95.7 558,436 382,064 399,063
*

 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 79.9 436.96 -3.04 242,442 206,667 258,723 16,249
Sulphur Springs Water Supply 94.7 458.43 -0.52 16,799 16,799 17,747 - n.a. -
Wright Patman Water Supply and Flood Control 100.0 226.46 5.86 276,131 122,593 122,593 - n.a. -