Lake Texana: 87.5% full as of 2026-09-05
Historical Data
| Date | Percent Full |
Mean Water Level (ft) |
Reservoir Storage (acre-ft) |
Conservation Storage (acre-ft) |
Conservation Capacity (acre-ft) |
Surface Area (acres) |
|
|---|---|---|---|---|---|---|---|
| Most recent | 2026-09-05 | 87.5 | 41.99 | 144,357 | 139,144 | 158,975 | 9,448 |
| 1 day prior | 2026-09-04 | 87.8 | 42.04 | 144,830 | 139,617 | 158,975 | 9,471 |
| 2 days prior | 2026-09-03 | 88.0 | 42.07 | 145,114 | 139,901 | 158,975 | 9,484 |
| 1 week prior | 2026-08-29 | 89.3 | 42.29 | 147,211 | 141,998 | 158,975 | 9,580 |
| 1 month prior | 2026-08-05 | 96.0 | 43.37 | 157,798 | 152,585 | 158,975 | 10,023 |
| 3 months prior | 2026-06-05 | 98.1 | 43.71 | 161,227 | 156,014 | 158,975 | 10,147 |
| 6 months prior | 2026-03-05 | 55.6 | 35.80 | 93,662 | 88,449 | 158,975 | 7,047 |
| 1 year prior | 2025-09-05 | 86.6 | 41.83 | 142,851 | 137,638 | 158,975 | 9,374 |
*
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 | 2026-09-05 23:30 | 41.97 | 44.00 | -2.03 |
| 1 hour prior | 2026-09-05 22:30 | 41.97 | 44.00 | -2.03 |
| 2 hours prior | 2026-09-05 21:30 | 41.97 | 44.00 | -2.03 |
| 6 hours prior | 2026-09-05 17:30 | 41.97 | 44.00 | -2.03 |
| 12 hours prior | 2026-09-05 11:30 | 42.00 | 44.00 | -2.00 |
| 24 hours prior | 2026-09-04 23:30 | 42.01 | 44.00 | -1.99 |
| 48 hours prior | 2026-09-03 23:30 | 42.06 | 44.00 | -1.94 |
*
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
