Upper-Coast Climate Division Reservoirs: Monitored Water Supply Reservoirs are 82.1% full on 2026-05-03

Historical Data

Date Percent Full Reservoir Storage
(acre-ft)
Conservation Storage
(acre-ft)
Conservation Capacity
(acre-ft)
Today 2026-05-03 82.1 254,201 239,176 291,293
Yesterday 2026-05-02 81.2 253,198 236,652 291,293
2 days ago 2026-05-01 79.0 239,125 230,111 291,293
1 week ago 2026-04-26 76.3 231,160 222,146 291,293
1 month ago 2026-04-03 73.1 222,555 212,967 291,293
3 months ago 2026-02-03 77.9 236,813 226,881 291,293
6 months ago 2025-11-03 85.0 256,545 247,531 291,293
1 year ago 2025-05-03 86.6 267,699 252,207 291,293
*

 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. - 88.06 - 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 42.90 0.52 142,130 132,318 132,318 - n.a. -
Texana Water Supply 67.2 38.26 -5.74 112,071 106,858 158,975 7,951
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.