Upper-Coast Climate Division Reservoirs: Monitored Water Supply Reservoirs are 99.2% full on 2026-06-11

Historical Data

Date Percent Full Reservoir Storage
(acre-ft)
Conservation Storage
(acre-ft)
Conservation Capacity
(acre-ft)
Today 2026-06-11 99.2 299,691 288,840 291,293
Yesterday 2026-06-10 99.3 300,315 289,349 291,293
2 days ago 2026-06-09 99.7 301,783 290,471 291,293
1 week ago 2026-06-04 99.1 302,613 288,637 291,293
1 month ago 2026-05-11 87.8 268,461 255,646 291,293
3 months ago 2026-03-11 75.6 231,357 220,275 291,293
6 months ago 2025-12-11 82.3 249,586 239,654 291,293
1 year ago 2025-06-11 88.7 267,424 258,410 291,293
*

 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. - 85.69 - n.a. - - n.a. - - n.a. - - n.a. - - n.a. -
Barker 2 Flood Control - n.a. - 85.30 - n.a. - - n.a. - - n.a. - - n.a. - - n.a. -
Houston Water Supply 100.0 42.54 0.16 137,956 132,318 132,318 - n.a. -
Texana Water Supply 98.5 43.76 -0.24 161,735 156,522 158,975 10,165
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.