Lake Tyler: 85.2% full as of 2026-10-09
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 | 2026-10-09 | 85.2 | 373.00 | 66,650 | 61,439 | 72,073 | 4,248 |
| Yesterday | 2026-10-08 | 85.3 | 373.01 | 66,692 | 61,481 | 72,073 | 4,250 |
| 2 days ago | 2026-10-07 | 85.4 | 373.03 | 66,777 | 61,566 | 72,073 | 4,253 |
| 1 week ago | 2026-10-02 | 85.9 | 373.11 | 67,118 | 61,907 | 72,073 | 4,267 |
| 1 month ago | 2026-09-09 | 89.1 | 373.65 | 69,447 | 64,236 | 72,073 | 4,361 |
| 3 months ago | 2026-07-09 | 95.8 | 374.72 | 74,222 | 69,011 | 72,073 | 4,568 |
| 6 months ago | 2026-04-09 | 97.9 | 375.06 | 75,787 | 70,576 | 72,073 | 4,640 |
| 1 year ago | 2025-10-09 | 92.6 | 374.22 | 71,963 | 66,752 | 72,073 | 4,468 |
*
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 | 2026-10-09 05:30 | 373.00 | 375.38 | -2.38 |
| 1 hour prior | 2026-10-09 04:30 | 373.00 | 375.38 | -2.38 |
| 2 hours prior | 2026-10-09 03:30 | 373.00 | 375.38 | -2.38 |
| 6 hours prior | 2026-10-08 23:30 | 373.01 | 375.38 | -2.37 |
| 12 hours prior | 2026-10-08 17:30 | 372.98 | 375.38 | -2.40 |
| 24 hours prior | 2026-10-08 05:30 | 373.02 | 375.38 | -2.36 |
| 48 hours prior | 2026-10-07 05:30 | 373.04 | 375.38 | -2.34 |
*
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
