Upper-Coast Climate Division Reservoirs: Monitored Water Supply Reservoirs are 95.8% full on 2025-08-18

Historical Data

Date Percent Full Reservoir Storage
(acre-ft)
Conservation Storage
(acre-ft)
Conservation Capacity
(acre-ft)
Most recent 2025-08-18 95.8 289,796 279,060 291,293
1 day prior 2025-08-17 97.0 293,261 282,410 291,293
2 days prior 2025-08-16 97.4 294,569 283,603 291,293
1 week prior 2025-08-11 97.5 293,720 283,903 291,293
1 month prior 2025-07-18 99.4 299,268 289,451 291,293
3 months prior 2025-05-18 86.0 260,469 250,423 291,293
6 months prior 2025-02-18 78.8 238,527 229,513 291,293
1 year prior 2024-08-18 98.6 296,590 287,117 291,293
*

 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 1as of 2025-08-18 Flood Control - n.a. - 76.42 - n.a. - - n.a. - - n.a. - - n.a. - - n.a. -
Barker 2as of 2025-08-18 Flood Control - n.a. - 70.24 - n.a. - - n.a. - - n.a. - - n.a. - - n.a. -
Houstonas of 2025-08-18 Water Supply 100.0 42.53 0.15 137,841 132,318 132,318 - n.a. -
Texanaas of 2025-08-18 Water Supply 92.3 42.78 -1.22 151,955 146,742 158,975 9,780
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.