Lake Fork Reservoir: 86.5% 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 | 86.5 | 399.77 | 555,409 | 523,966 | 606,088 | 24,039 |
| Yesterday | 2026-08-10 | 86.6 | 399.80 | 556,129 | 524,686 | 606,088 | 24,055 |
| 2 days ago | 2026-08-09 | 86.7 | 399.83 | 556,852 | 525,409 | 606,088 | 24,071 |
| 1 week ago | 2026-08-04 | 87.2 | 399.95 | 559,745 | 528,302 | 606,088 | 24,136 |
| 1 month ago | 2026-07-11 | 90.3 | 400.73 | 578,834 | 547,391 | 606,088 | 24,827 |
| 3 months ago | 2026-05-11 | 90.1 | 400.67 | 577,346 | 545,903 | 606,088 | 24,772 |
| 6 months ago | 2026-02-11 | 87.1 | 399.93 | 559,262 | 527,819 | 606,088 | 24,125 |
| 1 year ago | 2025-08-11 | 98.7 | 402.71 | 629,771 | 598,328 | 606,088 | 26,626 |
*
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 | 399.76 | 403.00 | -3.24 |
| 1 hour prior | 2026-08-11 15:30 | 399.76 | 403.00 | -3.24 |
| 2 hours prior | 2026-08-11 14:30 | 399.76 | 403.00 | -3.24 |
| 6 hours prior | 2026-08-11 10:30 | 399.77 | 403.00 | -3.23 |
| 12 hours prior | 2026-08-11 04:30 | 399.76 | 403.00 | -3.24 |
| 24 hours prior | 2026-08-10 16:30 | 399.78 | 403.00 | -3.22 |
| 48 hours prior | 2026-08-09 16:30 | 399.82 | 403.00 | -3.18 |
*
Data is provisional and subject to revision.
Additional Information
| Impoundment date | 1980-01-01 |
| Vertical datum | NGVD29 |
| Dead pool elevation | 360.00 ft above NGVD29 |
| Top of gate elevation | 405.00 ft above NGVD29 |
| Emergency spillway crest elevation | 385.00 ft above NGVD29 |
| Maximum design elevation | 407.90 ft above NGVD29 |
| Top of dam elevation | 419.50 ft above NGVD29 |
| Conservation pool elevation | 403.00 ft above NGVD29 |
| Data download (CSV) | period of record, last one year, last 30 days |
Elevation-Area-Capacity Curves
1980-02-01 (source: USGS)
2001-03-01 (source: TWDB)
: GIS Data
2009-10-01 (source: TWDB)
: GIS Data
|
|
| Data Source | USGS:08018800 |
| USGS Monitoring Location | USGS:08018800 |
Lake Location
