Upper-Coast Climate Division Reservoirs: Monitored Water Supply Reservoirs are 99.0% full on 2026-06-12

Historical Data

Date Percent Full Reservoir Storage
(acre-ft)
Conservation Storage
(acre-ft)
Conservation Capacity
(acre-ft)
Today 2026-06-12 99.0 299,068 288,332 291,293
Yesterday 2026-06-11 99.1 299,143 288,637 291,293
2 days ago 2026-06-10 99.3 300,315 289,349 291,293
1 week ago 2026-06-05 98.9 303,754 288,028 291,293
1 month ago 2026-05-12 87.4 268,904 254,695 291,293
3 months ago 2026-03-12 75.6 233,392 220,345 291,293
6 months ago 2025-12-12 82.2 249,496 239,335 291,293
1 year ago 2025-06-12 90.7 273,347 264,333 291,293
*

 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. - 84.28 - n.a. - - n.a. - - n.a. - - n.a. - - n.a. -
Barker 2 Flood Control - n.a. - 84.42 - n.a. - - n.a. - - n.a. - - n.a. - - n.a. -
Houston Water Supply 100.0 42.53 0.15 137,841 132,318 132,318 - n.a. -
Texana Water Supply 98.1 43.71 -0.29 161,227 156,014 158,975 10,147
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.