San-Jacinto River Basin Reservoirs: Monitored Water Supply Reservoirs are 95.5% full on 2025-11-18

Historical Data

Date Percent Full Reservoir Storage
(acre-ft)
Conservation Storage
(acre-ft)
Conservation Capacity
(acre-ft)
Today 2025-11-18 95.5 528,984 525,156 549,895
Yesterday 2025-11-17 95.4 528,415 524,587 549,895
2 days ago 2025-11-16 95.4 528,266 524,438 549,895
1 week ago 2025-11-11 95.2 527,371 523,543 549,895
1 month ago 2025-10-18 96.3 533,418 529,590 549,895
3 months ago 2025-08-18 98.3 546,007 540,802 549,895
6 months ago 2025-05-18 99.7 553,166 548,306 549,895
1 year ago 2024-11-18 94.8 524,869 521,041 549,895
*

 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. - 76.34 - n.a. - - n.a. - - n.a. - - n.a. - - n.a. -
Barker 2 Flood Control - n.a. - 69.43 - n.a. - - n.a. - - n.a. - - n.a. - - n.a. -
Conroe Water Supply 94.4 199.80 -1.20 394,121 394,094 417,577 19,245
Houston Water Supply 99.1 42.27 -0.11 134,863 131,062 132,318 11,394
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.