Upper-Coast Climate Division Reservoirs: Monitored Water Supply Reservoirs are 89.5% full on 2026-05-24

Historical Data

Date Percent Full Reservoir Storage
(acre-ft)
Conservation Storage
(acre-ft)
Conservation Capacity
(acre-ft)
Today 2026-05-24 89.5 269,584 260,570 291,293
Yesterday 2026-05-23 87.9 265,077 256,063 291,293
2 days ago 2026-05-22 86.5 260,894 251,880 291,293
1 week ago 2026-05-17 86.8 263,282 252,891 291,293
1 month ago 2026-04-24 73.6 223,394 214,380 291,293
3 months ago 2026-02-24 76.0 230,541 221,527 291,293
6 months ago 2025-11-24 83.3 253,677 242,711 291,293
1 year ago 2025-05-24 85.4 258,127 248,654 291,293
*

 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. - 82.37 - n.a. - - n.a. - - n.a. - - n.a. - - n.a. -
Barker 2 Flood Control - n.a. - 81.91 - n.a. - - n.a. - - n.a. - - n.a. - - n.a. -
Houston Water Supply 95.3 41.83 -0.55 129,893 126,092 132,318 11,200
Texana Water Supply 84.6 41.49 -2.51 139,691 134,478 158,975 9,214
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.