Upper-Coast Climate Division Reservoirs: Monitored Water Supply Reservoirs are 97.8% full on 2026-07-30

Historical Data

Date Percent Full Reservoir Storage
(acre-ft)
Conservation Storage
(acre-ft)
Conservation Capacity
(acre-ft)
Today 2026-07-30 97.8 293,844 284,830 291,293
Yesterday 2026-07-29 97.8 293,809 284,795 291,293
2 days ago 2026-07-28 97.9 294,305 285,291 291,293
1 week ago 2026-07-23 98.9 297,726 288,107 291,293
1 month ago 2026-06-30 99.6 299,982 290,165 291,293
3 months ago 2026-04-30 77.5 234,886 225,872 291,293
6 months ago 2026-01-30 78.3 238,640 228,134 291,293
1 year ago 2025-07-30 97.9 295,495 285,104 291,293
*

 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. - 69.79 - n.a. - - n.a. - - n.a. - - n.a. - - n.a. -
Houston Water Supply 97.5 42.09 -0.29 132,820 129,019 132,318 11,314
Texana Water Supply 98.0 43.69 -0.31 161,024 155,811 158,975 10,140
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.