Lake Texana: 98.0% full as of 2026-07-30
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 | 2026-07-30 | 98.0 | 43.69 | 161,024 | 155,811 | 158,975 | 10,140 |
| Yesterday | 2026-07-29 | 98.2 | 43.72 | 161,329 | 156,116 | 158,975 | 10,151 |
| 2 days ago | 2026-07-28 | 98.6 | 43.78 | 161,938 | 156,725 | 158,975 | 10,173 |
| 1 week ago | 2026-07-23 | 100.0 | 44.05 | 164,793 | 158,975 | 158,975 | 10,338 |
| 1 month ago | 2026-06-30 | 99.3 | 43.89 | 163,060 | 157,847 | 158,975 | 10,213 |
| 3 months ago | 2026-04-30 | 64.8 | 37.77 | 108,223 | 103,010 | 158,975 | 7,755 |
| 6 months ago | 2026-01-30 | 60.3 | 36.82 | 101,029 | 95,816 | 158,975 | 7,400 |
| 1 year ago | 2025-07-30 | 96.1 | 43.39 | 157,999 | 152,786 | 158,975 | 10,030 |
*
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 | 2026-07-30 15:00 | 43.67 | 44.00 | -0.33 |
| 1 hour prior | 2026-07-30 14:00 | 43.67 | 44.00 | -0.33 |
| 2 hours prior | 2026-07-30 13:00 | 43.67 | 44.00 | -0.33 |
| 6 hours prior | 2026-07-30 09:00 | 43.70 | 44.00 | -0.30 |
| 12 hours prior | 2026-07-30 03:00 | 43.69 | 44.00 | -0.31 |
| 24 hours prior | 2026-07-29 15:00 | 43.71 | 44.00 | -0.29 |
| 48 hours prior | 2026-07-28 15:00 | 43.74 | 44.00 | -0.26 |
*
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
