Upper-Coast Climate Division Reservoirs: Monitored Water Supply Reservoirs are 81.3% full on 2025-12-23

Historical Data

Date Percent Full Reservoir Storage
(acre-ft)
Conservation Storage
(acre-ft)
Conservation Capacity
(acre-ft)
Today 2025-12-23 81.3 246,782 236,965 291,293
Yesterday 2025-12-22 81.4 246,746 237,044 291,293
2 days ago 2025-12-21 81.5 246,946 237,358 291,293
1 week ago 2025-12-16 81.8 247,160 238,146 291,293
1 month ago 2025-11-23 83.4 254,810 243,036 291,293
3 months ago 2025-09-23 90.3 272,075 263,061 291,293
6 months ago 2025-06-23 99.5 299,790 289,858 291,293
1 year ago 2024-12-23 83.9 253,309 244,295 291,293
*

 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. - 76.36 - n.a. - - n.a. - - n.a. - - n.a. - - n.a. -
Barker 2 Flood Control - n.a. - 69.54 - n.a. - - n.a. - - n.a. - - n.a. - - n.a. -
Houston Water Supply 100.0 42.45 0.07 136,922 132,318 132,318 - n.a. -
Texana Water Supply 65.8 37.98 -6.02 109,860 104,647 158,975 7,840
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.