San-Jacinto River Basin Reservoirs: Monitored Water Supply Reservoirs are 96.3% full on 2025-10-18

Historical Data

Date Percent Full Reservoir Storage
(acre-ft)
Conservation Storage
(acre-ft)
Conservation Capacity
(acre-ft)
Most recent 2025-10-18 96.3 533,532 529,704 549,895
1 day prior 2025-10-17 96.4 533,839 530,011 549,895
2 days prior 2025-10-16 96.5 534,227 530,399 549,895
1 week prior 2025-10-11 96.9 536,676 532,848 549,895
1 month prior 2025-09-18 99.1 548,934 545,106 549,895
3 months prior 2025-07-18 100.0 555,666 549,895 549,895
6 months prior 2025-04-18 99.2 549,101 545,273 549,895
1 year prior 2024-10-18 94.8 525,380 521,552 549,895
*

 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 1as of 2025-10-18 Flood Control - n.a. - 76.34 - n.a. - - n.a. - - n.a. - - n.a. - - n.a. -
Barker 2as of 2025-10-18 Flood Control - n.a. - 69.34 - n.a. - - n.a. - - n.a. - - n.a. - - n.a. -
Conroeas of 2025-10-18 Water Supply 95.8 200.10 -0.90 399,919 399,892 417,577 19,408
Houstonas of 2025-10-18 Water Supply 98.1 42.16 -0.22 133,613 129,812 132,318 11,345
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.