Lake Texana: 94.4% full as of 2026-08-12
Historical Data
| Date | Percent Full |
Mean Water Level (ft) |
Reservoir Storage (acre-ft) |
Conservation Storage (acre-ft) |
Conservation Capacity (acre-ft) |
Surface Area (acres) |
|
|---|---|---|---|---|---|---|---|
| Today | 2026-08-12 | 94.4 | 43.12 | 155,305 | 150,092 | 158,975 | 9,924 |
| Yesterday | 2026-08-11 | 94.9 | 43.20 | 156,100 | 150,887 | 158,975 | 9,956 |
| 2 days ago | 2026-08-10 | 95.3 | 43.26 | 156,698 | 151,485 | 158,975 | 9,980 |
| 1 week ago | 2026-08-05 | 96.0 | 43.38 | 157,898 | 152,685 | 158,975 | 10,026 |
| 1 month ago | 2026-07-12 | 97.2 | 43.56 | 159,709 | 154,496 | 158,975 | 10,093 |
| 3 months ago | 2026-05-12 | 77.0 | 40.14 | 127,676 | 122,463 | 158,975 | 8,630 |
| 6 months ago | 2026-02-12 | 58.4 | 36.42 | 98,097 | 92,884 | 158,975 | 7,260 |
| 1 year ago | 2025-08-12 | - n.a. - | - n.a. - | - n.a. - | - n.a. - | - n.a. - | - n.a. - |
*
Percent Full is based on Conservation Storage and Conservation Capacity and doesn't account for storage in flood pool.
**
Values above, including today's are averaged conditions. For near real-time instantaneous water level, see table below or the interactive map viewer.
Most Recent Instantaneous Water Level
| Date/time |
Water Level (ft) |
Conservation Pool Elevation (ft) |
Height Above Conservation Pool (ft) |
|
|---|---|---|---|---|
| Most recent | 2026-08-12 19:00 | 43.09 | 44.00 | -0.91 |
| 1 hour prior | 2026-08-12 18:00 | 43.08 | 44.00 | -0.92 |
| 2 hours prior | 2026-08-12 17:00 | 43.08 | 44.00 | -0.92 |
| 6 hours prior | 2026-08-12 13:00 | 43.10 | 44.00 | -0.90 |
| 12 hours prior | 2026-08-12 07:00 | 43.14 | 44.00 | -0.86 |
| 24 hours prior | 2026-08-11 19:00 | 43.13 | 44.00 | -0.87 |
| 48 hours prior | 2026-08-10 19:00 | 43.26 | 44.00 | -0.74 |
*
Data is provisional and subject to revision.
Additional Information
| Impoundment date | 1981-01-01 |
| Vertical datum | NGVD29 |
| Dead pool elevation | 14.00 ft above NGVD29 |
| Service spillway crest elevation | 23.00 ft above NGVD29 |
| Emergency spillway crest elevation | 45.00 ft above NGVD29 |
| Maximum design elevation | 47.00 ft above NGVD29 |
| Top of dam elevation | 55.00 ft above NGVD29 |
| Conservation pool elevation | 44.00 ft above NGVD29 |
| Data download (CSV) | period of record, last one year, last 30 days |
Elevation-Area-Capacity Curves
2000-08-01 (source: TWDB)
: GIS Data
2010-03-01 (source: TWDB)
: GIS Data
2020-08-01 (source: TWDB)
: GIS Data
|
|
| Data Source | USGS:08164525 |
| USGS Monitoring Location | USGS:08164525 |
Lake Location
