Lake Tyler: 91.0% full as of 2026-08-28
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 | 2026-08-28 | 91.0 | 373.95 | 70,764 | 65,553 | 72,073 | 4,416 |
| 1 day prior | 2026-08-27 | 91.1 | 373.98 | 70,897 | 65,686 | 72,073 | 4,422 |
| 2 days prior | 2026-08-26 | 91.4 | 374.02 | 71,073 | 65,862 | 72,073 | 4,429 |
| 1 week prior | 2026-08-21 | 92.3 | 374.17 | 71,740 | 66,529 | 72,073 | 4,458 |
| 1 month prior | 2026-07-28 | 97.2 | 374.94 | 75,232 | 70,021 | 72,073 | 4,614 |
| 3 months prior | 2026-05-28 | 97.4 | 374.98 | 75,417 | 70,206 | 72,073 | 4,623 |
| 6 months prior | 2026-02-28 | 96.1 | 374.77 | 74,450 | 69,239 | 72,073 | 4,578 |
| 1 year prior | 2025-08-28 | 96.3 | 374.81 | 74,634 | 69,423 | 72,073 | 4,587 |
*
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 | 2026-08-28 23:30 | 373.91 | 375.38 | -1.47 |
| 1 hour prior | 2026-08-28 22:30 | 373.92 | 375.38 | -1.46 |
| 2 hours prior | 2026-08-28 21:30 | 373.92 | 375.38 | -1.46 |
| 6 hours prior | 2026-08-28 17:30 | 373.95 | 375.38 | -1.43 |
| 12 hours prior | 2026-08-28 11:30 | 373.94 | 375.38 | -1.44 |
| 24 hours prior | 2026-08-27 23:30 | 373.98 | 375.38 | -1.40 |
| 48 hours prior | 2026-08-26 23:30 | 374.01 | 375.38 | -1.37 |
*
Data is provisional and subject to revision.
Additional Information
| Impoundment date | 1967-01-01 |
| Vertical datum | NGVD29 |
| Dead pool elevation | 350.00 ft above NGVD29 |
| Service spillway crest elevation | 375.38 ft above NGVD29 |
| Top of dam elevation | 390.00 ft above NGVD29 |
| Conservation pool elevation | 375.38 ft above NGVD29 |
| Data download (CSV) | period of record, last one year, last 30 days |
Elevation-Area-Capacity Curves
1967-01-01 (source: USGS)
1997-06-01 (source: TWDB)
: GIS Data
2013-01-01 (source: TWDB)
: GIS Data
|
|
| Data Source | USGS:08034000 |
| USGS Monitoring Location | USGS:08034000 |
Lake Location
