San-Jacinto River Basin Reservoirs: Monitored Water Supply Reservoirs are 98.1% full on 2026-08-12
Historical Data
| Date | Percent Full |
Reservoir Storage (acre-ft) |
Conservation Storage (acre-ft) |
Conservation Capacity (acre-ft) |
|
|---|---|---|---|---|---|
| Today | 2026-08-12 | 98.1 | 543,452 | 539,624 | 549,895 |
| Yesterday | 2026-08-11 | 98.1 | 543,109 | 539,281 | 549,895 |
| 2 days ago | 2026-08-10 | 98.1 | 543,273 | 539,445 | 549,895 |
| 1 week ago | 2026-08-05 | 98.2 | 543,780 | 539,952 | 549,895 |
| 1 month ago | 2026-07-12 | 98.9 | 549,419 | 543,754 | 549,895 |
| 3 months ago | 2026-05-12 | 98.0 | 547,667 | 538,644 | 549,895 |
| 6 months ago | 2026-02-12 | 95.8 | 531,428 | 526,797 | 549,895 |
| 1 year ago | 2025-08-12 | 98.6 | 546,891 | 542,375 | 549,895 |
*
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. - | 76.41 | - n.a. - | - n.a. - | - n.a. - | - n.a. - | - n.a. - |
| Barker 2 |
|
- n.a. - | 69.79 | - n.a. - | - n.a. - | - n.a. - | - n.a. - | - n.a. - |
| Conroe |
|
97.5 | 200.48 | -0.52 | 407,333 | 407,306 | 417,577 | 19,613 |
| Houston |
|
100.0 | 42.38 | 0.00 | 136,119 | 132,318 | 132,318 | 11,443 |
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.