Upper-Coast Climate Division Reservoirs: Monitored Water Supply Reservoirs are 81.8% full on 2025-12-15

Historical Data

Date Percent Full Reservoir Storage
(acre-ft)
Conservation Storage
(acre-ft)
Conservation Capacity
(acre-ft)
Today 2025-12-15 81.8 247,291 238,277 291,293
Yesterday 2025-12-14 82.2 249,540 239,494 291,293
2 days ago 2025-12-13 82.1 249,257 239,096 291,293
1 week ago 2025-12-08 82.6 251,315 240,694 291,293
1 month ago 2025-11-15 83.3 251,589 242,575 291,293
3 months ago 2025-09-15 91.4 275,809 266,336 291,293
6 months ago 2025-06-15 99.6 301,708 290,165 291,293
1 year ago 2024-12-15 84.7 256,124 246,651 291,293
*

 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. - 69.74 - n.a. - - n.a. - - n.a. - - n.a. - - n.a. -
Houston Water Supply 99.7 42.35 -0.03 135,776 131,975 132,318 11,429
Texana Water Supply 66.9 38.19 -5.81 111,515 106,302 158,975 7,923
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.