Lake Tawakoni: 88.0% full as of 2026-11-09
Historical Data
| Date | Percent Full |
Mean Water Level (ft) |
Reservoir Storage (acre-ft) |
Conservation Storage (acre-ft) |
Conservation Capacity (acre-ft) |
Surface Area (acres) |
|
|---|---|---|---|---|---|---|---|
| Most recent | 2026-11-09 | 88.0 | 434.56 | 767,032 | 767,024 | 871,685 | 34,449 |
| 1 day prior | 2026-11-08 | 88.1 | 434.58 | 767,721 | 767,713 | 871,685 | 34,462 |
| 2 days prior | 2026-11-07 | 88.2 | 434.60 | 768,410 | 768,402 | 871,685 | 34,476 |
| 1 week prior | 2026-11-02 | 88.5 | 434.69 | 771,516 | 771,508 | 871,685 | 34,539 |
| 1 month prior | 2026-10-09 | 91.4 | 435.42 | 796,918 | 796,910 | 871,685 | 35,062 |
| 3 months prior | 2026-08-09 | 97.1 | 436.82 | 846,797 | 846,789 | 871,685 | 36,247 |
| 6 months prior | 2026-05-09 | 98.7 | 437.20 | 860,644 | 860,636 | 871,685 | 36,642 |
| 1 year prior | 2025-11-09 | 93.5 | 435.93 | 814,899 | 814,891 | 871,685 | 35,458 |
*
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 | 2026-11-09 23:15 | 434.55 | 437.50 | -2.95 |
| 1 hour prior | 2026-11-09 22:15 | 434.55 | 437.50 | -2.95 |
| 2 hours prior | 2026-11-09 21:15 | 434.55 | 437.50 | -2.95 |
| 6 hours prior | 2026-11-09 17:15 | 434.56 | 437.50 | -2.94 |
| 12 hours prior | 2026-11-09 11:15 | 434.56 | 437.50 | -2.94 |
| 24 hours prior | 2026-11-08 23:15 | 434.57 | 437.50 | -2.93 |
| 48 hours prior | 2026-11-07 23:15 | 434.59 | 437.50 | -2.91 |
*
Data is provisional and subject to revision.
Additional Information
| Impoundment date | 1960-01-01 |
| Vertical datum | NGVD29 |
| Dead pool elevation | 378.00 ft above NGVD29 |
| Emergency spillway crest elevation | 437.50 ft above NGVD29 |
| Top of dam elevation | 454.00 ft above NGVD29 |
| Conservation pool elevation | 437.50 ft above NGVD29 |
| Data download (CSV) | period of record, last one year, last 30 days |
Elevation-Area-Capacity Curves
1960-01-01 (source: USGS)
2000-10-01 (source: USGS)
2009-08-01 (source: TWDB)
: GIS Data
|
|
| Data Source | USGS:08017400 |
| USGS Monitoring Location | USGS:08017400 |
Lake Location
