Upper-Coast Climate Division Reservoirs: Monitored Water Supply Reservoirs are 73.1% full on 2026-04-01

Historical Data

Date Percent Full Reservoir Storage
(acre-ft)
Conservation Storage
(acre-ft)
Conservation Capacity
(acre-ft)
Today 2026-04-01 73.1 222,055 213,041 291,293
Yesterday 2026-03-31 73.2 222,275 213,261 291,293
2 days ago 2026-03-30 73.3 222,609 213,595 291,293
1 week ago 2026-03-25 74.1 224,846 215,717 291,293
1 month ago 2026-03-01 76.2 231,072 221,828 291,293
3 months ago 2026-01-01 79.6 240,786 231,772 291,293
6 months ago 2025-10-01 89.1 268,644 259,630 291,293
1 year ago 2025-04-01 88.8 268,888 258,612 291,293
*

 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. - 70.07 - n.a. - - n.a. - - n.a. - - n.a. - - n.a. -
Houston Water Supply 99.7 42.34 -0.04 135,662 131,861 132,318 11,425
Texana Water Supply 51.1 34.74 -9.26 86,393 81,180 158,975 6,659
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.