Upper-Coast Climate Division Reservoirs: Monitored Water Supply Reservoirs are 74.3% full on 2026-03-23

Historical Data

Date Percent Full Reservoir Storage
(acre-ft)
Conservation Storage
(acre-ft)
Conservation Capacity
(acre-ft)
Today 2026-03-23 74.3 225,574 216,330 291,293
Yesterday 2026-03-22 74.2 225,069 216,055 291,293
2 days ago 2026-03-21 74.2 225,228 216,214 291,293
1 week ago 2026-03-16 75.3 229,387 219,226 291,293
1 month ago 2026-02-23 76.3 231,342 222,328 291,293
3 months ago 2025-12-23 81.3 246,819 236,887 291,293
6 months ago 2025-09-23 90.3 272,075 263,061 291,293
1 year ago 2025-03-23 75.6 229,330 220,316 291,293
*

 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. - 76.36 - n.a. - - n.a. - - n.a. - - n.a. - - n.a. -
Barker 2 Flood Control - n.a. - 70.55 - n.a. - - n.a. - - n.a. - - n.a. - - n.a. -
Houston Water Supply 100.0 42.40 0.02 136,349 132,318 132,318 - n.a. -
Texana Water Supply 52.8 35.16 -8.84 89,225 84,012 158,975 6,822
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.