San-Jacinto River Basin Reservoirs: Monitored Water Supply Reservoirs are 99.2% full on 2026-07-03

Historical Data

Date Percent Full Reservoir Storage
(acre-ft)
Conservation Storage
(acre-ft)
Conservation Capacity
(acre-ft)
Today 2026-07-03 99.2 550,935 545,730 549,895
Yesterday 2026-07-02 99.3 550,872 546,126 549,895
2 days ago 2026-07-01 99.4 551,037 546,521 549,895
1 week ago 2026-06-26 99.7 553,542 548,107 549,895
1 month ago 2026-06-03 99.4 553,571 546,521 549,895
3 months ago 2026-04-03 95.9 531,584 527,182 549,895
6 months ago 2026-01-03 95.9 531,253 527,425 549,895
1 year ago 2025-07-03 100.0 558,798 549,895 549,895
*

 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. - 69.74 - n.a. - - n.a. - - n.a. - - n.a. - - n.a. -
Conroe Water Supply 99.0 200.79 -0.21 413,439 413,412 417,577 19,781
Houston Water Supply 100.0 42.50 0.12 137,496 132,318 132,318 - 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.