Lake Fork Reservoir: 83.4% full as of 2026-09-08
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 | 2026-09-08 | 83.4 | 399.00 | 537,054 | 505,611 | 606,088 | 23,640 |
| Yesterday | 2026-09-07 | 83.5 | 399.01 | 537,290 | 505,847 | 606,088 | 23,645 |
| 2 days ago | 2026-09-06 | 83.5 | 399.03 | 537,764 | 506,321 | 606,088 | 23,655 |
| 1 week ago | 2026-09-01 | 84.0 | 399.15 | 540,606 | 509,163 | 606,088 | 23,715 |
| 1 month ago | 2026-08-08 | 86.8 | 399.85 | 557,334 | 525,891 | 606,088 | 24,082 |
| 3 months ago | 2026-06-08 | 92.9 | 401.36 | 594,655 | 563,212 | 606,088 | 25,399 |
| 6 months ago | 2026-03-08 | 88.3 | 400.23 | 566,534 | 535,091 | 606,088 | 24,373 |
| 1 year ago | 2025-09-08 | 96.2 | 402.14 | 614,743 | 583,300 | 606,088 | 26,108 |
*
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 | 2026-09-08 16:30 | 399.00 | 403.00 | -4.00 |
| 1 hour prior | 2026-09-08 15:30 | 399.00 | 403.00 | -4.00 |
| 2 hours prior | 2026-09-08 14:30 | 399.00 | 403.00 | -4.00 |
| 6 hours prior | 2026-09-08 10:30 | 399.00 | 403.00 | -4.00 |
| 12 hours prior | 2026-09-08 04:30 | 399.01 | 403.00 | -3.99 |
| 24 hours prior | 2026-09-07 16:30 | 399.00 | 403.00 | -4.00 |
| 48 hours prior | 2026-09-06 16:30 | 399.03 | 403.00 | -3.97 |
*
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
