Upper-Coast Climate Division Reservoirs: Monitored Water Supply Reservoirs are 99.7% full on 2025-07-09

Historical Data

Date Percent Full Reservoir Storage
(acre-ft)
Conservation Storage
(acre-ft)
Conservation Capacity
(acre-ft)
Today 2025-07-09 99.7 303,750 290,471 291,293
Yesterday 2025-07-08 99.6 302,054 290,165 291,293
2 days ago 2025-07-07 99.6 301,708 290,165 291,293
1 week ago 2025-07-02 99.8 302,219 290,676 291,293
1 month ago 2025-06-09 89.0 271,695 259,228 291,293
3 months ago 2025-04-09 87.9 267,162 256,080 291,293
6 months ago 2025-01-09 83.6 253,080 243,607 291,293
1 year ago 2024-07-09 99.8 316,366 290,778 291,293
*

 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. - 76.42 - n.a. - - n.a. - - n.a. - - n.a. - - n.a. -
Barker 2 Flood Control - n.a. - 70.72 - n.a. - - n.a. - - n.a. - - n.a. - - n.a. -
Houston Water Supply 100.0 42.75 0.37 140,384 132,318 132,318 - n.a. -
Texana Water Supply 99.5 43.92 -0.08 163,366 158,153 158,975 10,225
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.