Upper-Coast Climate Division Reservoirs: Monitored Water Supply Reservoirs are 91.3% full on 2025-09-16

Historical Data

Date Percent Full Reservoir Storage
(acre-ft)
Conservation Storage
(acre-ft)
Conservation Capacity
(acre-ft)
Today 2025-09-16 91.3 275,534 266,061 291,293
Yesterday 2025-09-15 91.4 275,809 266,336 291,293
2 days ago 2025-09-14 91.6 276,498 266,796 291,293
1 week ago 2025-09-09 92.4 280,448 269,021 291,293
1 month ago 2025-08-16 95.3 288,432 277,696 291,293
3 months ago 2025-06-16 99.7 309,135 290,471 291,293
6 months ago 2025-03-16 76.0 230,335 221,321 291,293
1 year ago 2024-09-16 95.7 288,108 278,864 291,293
*

 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. - 76.35 - n.a. - - n.a. - - n.a. - - n.a. - - n.a. -
Barker 2 Flood Control - n.a. - 69.97 - n.a. - - n.a. - - n.a. - - n.a. - - n.a. -
Houston Water Supply 100.0 42.42 0.04 136,578 132,318 132,318 - n.a. -
Texana Water Supply 84.1 41.41 -2.59 138,956 133,743 158,975 9,172
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.