Lake Texana: 86.0% full as of 2026-09-13
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 | 2026-09-13 | 86.0 | 41.73 | 141,916 | 136,703 | 158,975 | 9,327 |
| Yesterday | 2026-09-12 | 86.1 | 41.75 | 142,103 | 136,890 | 158,975 | 9,337 |
| 2 days ago | 2026-09-11 | 86.4 | 41.80 | 142,570 | 137,357 | 158,975 | 9,360 |
| 1 week ago | 2026-09-06 | 87.3 | 41.96 | 144,074 | 138,861 | 158,975 | 9,434 |
| 1 month ago | 2026-08-13 | 93.9 | 43.04 | 154,512 | 149,299 | 158,975 | 9,891 |
| 3 months ago | 2026-06-13 | 98.0 | 43.69 | 161,024 | 155,811 | 158,975 | 10,140 |
| 6 months ago | 2026-03-13 | 54.8 | 35.62 | 92,400 | 87,187 | 158,975 | 6,981 |
| 1 year ago | 2025-09-13 | 84.9 | 41.54 | 140,152 | 134,939 | 158,975 | 9,238 |
*
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 | 2026-09-13 19:00 | 41.70 | 44.00 | -2.30 |
| 1 hour prior | 2026-09-13 18:00 | 41.70 | 44.00 | -2.30 |
| 2 hours prior | 2026-09-13 17:00 | 41.71 | 44.00 | -2.29 |
| 6 hours prior | 2026-09-13 13:00 | 41.74 | 44.00 | -2.26 |
| 12 hours prior | 2026-09-13 07:00 | 41.74 | 44.00 | -2.26 |
| 24 hours prior | 2026-09-12 19:00 | 41.73 | 44.00 | -2.27 |
| 48 hours prior | 2026-09-11 19:00 | 41.77 | 44.00 | -2.23 |
*
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
