Lake Tyler: 83.5% full as of 2026-10-20
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 | 2026-10-20 | 83.5 | 372.70 | 65,383 | 60,172 | 72,073 | 4,199 |
| Yesterday | 2026-10-19 | 83.6 | 372.72 | 65,467 | 60,256 | 72,073 | 4,202 |
| 2 days ago | 2026-10-18 | 83.7 | 372.74 | 65,551 | 60,340 | 72,073 | 4,206 |
| 1 week ago | 2026-10-13 | 84.5 | 372.88 | 66,141 | 60,930 | 72,073 | 4,229 |
| 1 month ago | 2026-09-20 | 87.3 | 373.35 | 68,147 | 62,936 | 72,073 | 4,308 |
| 3 months ago | 2026-07-20 | 98.7 | 375.18 | 76,345 | 71,134 | 72,073 | 4,667 |
| 6 months ago | 2026-04-20 | 98.2 | 375.11 | 76,019 | 70,808 | 72,073 | 4,651 |
| 1 year ago | 2025-10-20 | 90.8 | 373.93 | 70,676 | 65,465 | 72,073 | 4,413 |
*
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 | 2026-10-20 19:30 | 372.68 | 375.38 | -2.70 |
| 1 hour prior | 2026-10-20 18:30 | 372.69 | 375.38 | -2.69 |
| 2 hours prior | 2026-10-20 17:30 | 372.67 | 375.38 | -2.71 |
| 6 hours prior | 2026-10-20 13:30 | 372.68 | 375.38 | -2.70 |
| 12 hours prior | 2026-10-20 07:30 | 372.70 | 375.38 | -2.68 |
| 24 hours prior | 2026-10-19 19:30 | 372.70 | 375.38 | -2.68 |
| 48 hours prior | 2026-10-18 19:30 | 372.72 | 375.38 | -2.66 |
*
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
