Lake Tawakoni: 89.0% full as of 2026-10-28
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 | 2026-10-28 | 89.0 | 434.81 | 775,665 | 775,657 | 871,685 | 34,623 |
| 1 day prior | 2026-10-27 | 89.1 | 434.84 | 776,705 | 776,697 | 871,685 | 34,644 |
| 2 days prior | 2026-10-26 | 89.2 | 434.87 | 777,744 | 777,736 | 871,685 | 34,665 |
| 1 week prior | 2026-10-21 | 89.7 | 435.00 | 782,256 | 782,248 | 871,685 | 34,757 |
| 1 month prior | 2026-09-28 | 90.7 | 435.23 | 790,270 | 790,262 | 871,685 | 34,922 |
| 3 months prior | 2026-07-28 | 98.6 | 437.18 | 859,912 | 859,904 | 871,685 | 36,620 |
| 6 months prior | 2026-04-28 | 99.2 | 437.30 | 864,313 | 864,305 | 871,685 | 36,761 |
| 1 year prior | 2025-10-28 | 94.6 | 436.20 | 824,503 | 824,495 | 871,685 | 35,683 |
*
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 | 2026-10-28 23:15 | 434.80 | 437.50 | -2.70 |
| 1 hour prior | 2026-10-28 22:15 | 434.80 | 437.50 | -2.70 |
| 2 hours prior | 2026-10-28 21:15 | 434.80 | 437.50 | -2.70 |
| 6 hours prior | 2026-10-28 17:15 | 434.80 | 437.50 | -2.70 |
| 12 hours prior | 2026-10-28 11:15 | 434.81 | 437.50 | -2.69 |
| 24 hours prior | 2026-10-27 23:15 | 434.81 | 437.50 | -2.69 |
| 48 hours prior | 2026-10-26 23:15 | 434.85 | 437.50 | -2.65 |
*
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
