San-Jacinto River Basin Reservoirs: Monitored Water Supply Reservoirs are 96.4% full on 2026-02-21

Historical Data

Date Percent Full Reservoir Storage
(acre-ft)
Conservation Storage
(acre-ft)
Conservation Capacity
(acre-ft)
Today 2026-02-21 96.4 536,168 530,272 549,895
Yesterday 2026-02-20 96.4 536,283 530,272 549,895
2 days ago 2026-02-19 96.4 536,126 529,885 549,895
1 week ago 2026-02-14 95.9 532,042 527,182 549,895
1 month ago 2026-01-21 95.6 529,555 525,727 549,895
3 months ago 2025-11-21 95.6 529,398 525,570 549,895
6 months ago 2025-08-21 98.4 547,124 540,998 549,895
1 year ago 2025-02-21 97.4 539,477 535,649 549,895
*

 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)
Addicks 1 Flood Control - n.a. - 76.36 - n.a. - - n.a. - - n.a. - - n.a. - - n.a. -
Barker 2 Flood Control - n.a. - 71.24 - n.a. - - n.a. - - n.a. - - n.a. - - n.a. -
Conroe Water Supply 95.3 200.00 -1.00 397,981 397,954 417,577 19,354
Houston Water Supply 100.0 42.56 0.18 138,187 132,318 132,318 - n.a. -
footnotes
1

Addicks Reservoir is a flood control lake. It is not used for water supply and under normal conditions it is empty.

2

Barker Reservoir is a flood control lake. It is not used for water supply and under normal conditions it is empty.