San-Jacinto River Basin Reservoirs: Monitored Water Supply Reservoirs are 96.5% full on 2025-12-12

Historical Data

Date Percent Full Reservoir Storage
(acre-ft)
Conservation Storage
(acre-ft)
Conservation Capacity
(acre-ft)
Today 2025-12-12 96.5 535,440 530,465 549,895
Yesterday 2025-12-11 96.5 535,405 530,659 549,895
2 days ago 2025-12-10 96.5 535,943 530,853 549,895
1 week ago 2025-12-05 96.6 540,030 531,240 549,895
1 month ago 2025-11-12 95.2 527,326 523,498 549,895
3 months ago 2025-09-12 99.5 552,519 547,314 549,895
6 months ago 2025-06-12 99.6 552,584 547,616 549,895
1 year ago 2024-12-12 95.2 527,411 523,583 549,895
*

 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. - 69.94 - n.a. - - n.a. - - n.a. - - n.a. - - n.a. -
Conroe Water Supply 95.3 200.01 -0.99 398,174 398,147 417,577 19,359
Houston Water Supply 100.0 42.48 0.10 137,266 132,318 132,318 - 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.