Upper-Coast Climate Division Reservoirs: Monitored Water Supply Reservoirs are 92.4% full on 2026-09-13

Historical Data

Date Percent Full Reservoir Storage
(acre-ft)
Conservation Storage
(acre-ft)
Conservation Capacity
(acre-ft)
Today 2026-09-13 92.4 279,527 269,021 291,293
Yesterday 2026-09-12 92.4 279,829 269,208 291,293
2 days ago 2026-09-11 92.6 280,411 269,675 291,293
1 week ago 2026-09-06 93.1 280,996 271,179 291,293
1 month ago 2026-08-13 96.6 290,403 281,389 291,293
3 months ago 2026-06-13 98.9 298,405 288,129 291,293
6 months ago 2026-03-13 75.4 230,932 219,505 291,293
1 year ago 2025-09-13 91.7 277,189 267,257 291,293
*

 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. - 76.41 - n.a. - - n.a. - - n.a. - - n.a. - - n.a. -
Barker 2 Flood Control - n.a. - 70.25 - n.a. - - n.a. - - n.a. - - n.a. - - n.a. -
Houston Water Supply 100.0 42.51 0.13 137,611 132,318 132,318 - n.a. -
Texana Water Supply 86.0 41.73 -2.27 141,916 136,703 158,975 9,327
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.