Lake Tyler: 94.6% full as of 2026-08-11
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 | 2026-08-11 | 94.6 | 374.53 | 73,358 | 68,147 | 72,073 | 4,529 |
| Yesterday | 2026-08-10 | 94.7 | 374.55 | 73,448 | 68,237 | 72,073 | 4,533 |
| 2 days ago | 2026-08-09 | 94.9 | 374.59 | 73,630 | 68,419 | 72,073 | 4,541 |
| 1 week ago | 2026-08-04 | 95.6 | 374.69 | 74,085 | 68,874 | 72,073 | 4,562 |
| 1 month ago | 2026-07-11 | 95.5 | 374.68 | 74,039 | 68,828 | 72,073 | 4,559 |
| 3 months ago | 2026-05-11 | 98.2 | 375.10 | 75,973 | 70,762 | 72,073 | 4,649 |
| 6 months ago | 2026-02-11 | 94.0 | 374.44 | 72,951 | 67,740 | 72,073 | 4,511 |
| 1 year ago | 2025-08-11 | 98.2 | 375.11 | 76,019 | 70,808 | 72,073 | 4,651 |
*
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 | 2026-08-11 16:30 | 374.51 | 375.38 | -0.87 |
| 1 hour prior | 2026-08-11 15:30 | 374.51 | 375.38 | -0.87 |
| 2 hours prior | 2026-08-11 14:30 | 374.50 | 375.38 | -0.88 |
| 6 hours prior | 2026-08-11 10:30 | 374.52 | 375.38 | -0.86 |
| 12 hours prior | 2026-08-11 04:30 | 374.54 | 375.38 | -0.84 |
| 24 hours prior | 2026-08-10 16:30 | 374.55 | 375.38 | -0.83 |
| 48 hours prior | 2026-08-09 16:30 | 374.58 | 375.38 | -0.80 |
*
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
