Lake Texana: 84.4% full as of 2026-09-22
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 | 2026-09-22 | 84.4 | 41.45 | 139,323 | 134,110 | 158,975 | 9,193 |
| Yesterday | 2026-09-21 | 84.4 | 41.45 | 139,323 | 134,110 | 158,975 | 9,193 |
| 2 days ago | 2026-09-20 | 84.5 | 41.47 | 139,507 | 134,294 | 158,975 | 9,203 |
| 1 week ago | 2026-09-15 | 85.5 | 41.64 | 141,079 | 135,866 | 158,975 | 9,285 |
| 1 month ago | 2026-08-22 | 91.3 | 42.61 | 150,298 | 145,085 | 158,975 | 9,712 |
| 3 months ago | 2026-06-22 | 99.7 | 43.96 | 163,775 | 158,562 | 158,975 | 10,240 |
| 6 months ago | 2026-03-22 | 52.9 | 35.17 | 89,293 | 84,080 | 158,975 | 6,825 |
| 1 year ago | 2025-09-22 | 82.6 | 41.14 | 136,497 | 131,284 | 158,975 | 9,038 |
*
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 | 2026-09-22 00:00 | 41.45 | 44.00 | -2.55 |
| 1 hour prior | 2026-09-21 23:00 | 41.45 | 44.00 | -2.55 |
| 2 hours prior | 2026-09-21 22:00 | 41.45 | 44.00 | -2.55 |
| 6 hours prior | 2026-09-21 18:00 | 41.43 | 44.00 | -2.57 |
| 12 hours prior | 2026-09-21 12:00 | 41.46 | 44.00 | -2.54 |
| 24 hours prior | 2026-09-21 00:00 | 41.47 | 44.00 | -2.53 |
| 48 hours prior | 2026-09-20 00:00 | 41.48 | 44.00 | -2.52 |
*
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
