San-Jacinto River Basin Reservoirs: Monitored Water Supply Reservoirs are 96.0% full on 2026-03-23

Historical Data

Date Percent Full Reservoir Storage
(acre-ft)
Conservation Storage
(acre-ft)
Conservation Capacity
(acre-ft)
Today 2026-03-23 96.0 532,204 528,146 549,895
Yesterday 2026-03-22 96.0 531,631 527,803 549,895
2 days ago 2026-03-21 96.0 531,710 527,882 549,895
1 week ago 2026-03-16 96.7 536,603 531,628 549,895
1 month ago 2026-02-23 96.0 531,797 527,969 549,895
3 months ago 2025-12-23 96.4 534,824 530,078 549,895
6 months ago 2025-09-23 98.7 546,794 542,966 549,895
1 year ago 2025-03-23 96.8 536,259 532,431 549,895
*

 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. - 70.55 - n.a. - - n.a. - - n.a. - - n.a. - - n.a. -
Conroe Water Supply 94.8 199.89 -1.11 395,855 395,828 417,577 19,294
Houston Water Supply 100.0 42.40 0.02 136,349 132,318 132,318 - 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.