Upper-Coast Climate Division Reservoirs: Monitored Water Supply Reservoirs are 70.1% full on 2026-04-20
Historical Data
| Date | Percent Full |
Reservoir Storage (acre-ft) |
Conservation Storage (acre-ft) |
Conservation Capacity (acre-ft) |
|
|---|---|---|---|---|---|
| Most recent | 2026-04-20 | 70.1 | 213,087 | 204,073 | 291,293 |
| 1 day prior | 2026-04-19 | 70.3 | 213,723 | 204,709 | 291,293 |
| 2 days prior | 2026-04-18 | 69.9 | 212,570 | 203,556 | 291,293 |
| 1 week prior | 2026-04-13 | 73.8 | 226,352 | 215,040 | 291,293 |
| 1 month prior | 2026-03-20 | 74.3 | 225,388 | 216,374 | 291,293 |
| 3 months prior | 2026-01-20 | 78.0 | 236,110 | 227,096 | 291,293 |
| 6 months prior | 2025-10-20 | 85.9 | 259,257 | 250,243 | 291,293 |
| 1 year prior | 2025-04-20 | 86.7 | 261,619 | 252,605 | 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 |
|
- n.a. - | 79.68 | - n.a. - | - n.a. - | - n.a. - | - n.a. - | - n.a. - |
| Barker 2 |
|
- n.a. - | 80.29 | - n.a. - | - n.a. - | - n.a. - | - n.a. - | - n.a. - |
| Houston |
|
88.5 | 41.02 | -1.36 | 120,966 | 117,165 | 132,318 | 10,842 |
| Texana |
|
54.7 | 35.58 | -8.42 | 92,121 | 86,908 | 158,975 | 6,967 |
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.