Upper-Coast Climate Division Reservoirs: Monitored Water Supply Reservoirs are 75.5% full on 2026-03-13

Historical Data

Date Percent Full Reservoir Storage
(acre-ft)
Conservation Storage
(acre-ft)
Conservation Capacity
(acre-ft)
Today 2026-03-13 75.5 231,537 219,994 291,293
Yesterday 2026-03-12 75.7 233,557 220,626 291,293
2 days ago 2026-03-11 75.7 231,522 220,556 291,293
1 week ago 2026-03-06 75.7 229,800 220,556 291,293
1 month ago 2026-02-13 77.3 234,645 225,057 291,293
3 months ago 2025-12-13 82.1 249,257 239,096 291,293
6 months ago 2025-09-13 91.7 277,189 267,257 291,293
1 year ago 2025-03-13 76.2 230,967 221,953 291,293
*

 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. - 82.81 - n.a. - - n.a. - - n.a. - - n.a. - - n.a. -
Barker 2 Flood Control - n.a. - 76.51 - n.a. - - n.a. - - n.a. - - n.a. - - n.a. -
Houston Water Supply 100.0 42.60 0.22 138,648 132,318 132,318 - n.a. -
Texana Water Supply 55.2 35.69 -8.31 92,889 87,676 158,975 7,006
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.