San-Jacinto River Basin Reservoirs: Monitored Water Supply Reservoirs are 98.4% full on 2025-08-17

Historical Data

Date Percent Full Reservoir Storage
(acre-ft)
Conservation Storage
(acre-ft)
Conservation Capacity
(acre-ft)
Today 2025-08-17 98.4 546,975 541,195 549,895
Yesterday 2025-08-16 98.4 546,975 541,195 549,895
2 days ago 2025-08-15 98.4 546,975 541,195 549,895
1 week ago 2025-08-10 98.8 548,335 543,360 549,895
1 month ago 2025-07-17 100.0 557,801 549,895 549,895
3 months ago 2025-05-17 99.8 553,908 548,703 549,895
6 months ago 2025-02-17 99.4 550,651 546,822 549,895
1 year ago 2024-08-17 99.1 549,341 544,939 549,895
*

 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. - 76.41 - n.a. - - n.a. - - n.a. - - n.a. - - n.a. -
Barker 2 Flood Control - n.a. - 69.96 - n.a. - - n.a. - - n.a. - - n.a. - - n.a. -
Conroe Water Supply 97.9 200.56 -0.44 408,904 408,877 417,577 19,656
Houston Water Supply 100.0 42.55 0.17 138,071 132,318 132,318 - 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.