Lake Fork Reservoir: 83.6% full as of 2026-09-05
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 | 2026-09-05 | 83.6 | 399.05 | 538,237 | 506,794 | 606,088 | 23,665 |
| 1 day prior | 2026-09-04 | 83.7 | 399.07 | 538,710 | 507,267 | 606,088 | 23,675 |
| 2 days prior | 2026-09-03 | 83.7 | 399.07 | 538,710 | 507,267 | 606,088 | 23,675 |
| 1 week prior | 2026-08-29 | 84.3 | 399.23 | 542,505 | 511,062 | 606,088 | 23,756 |
| 1 month prior | 2026-08-05 | 87.0 | 399.92 | 559,020 | 527,577 | 606,088 | 24,120 |
| 3 months prior | 2026-06-05 | 91.8 | 401.10 | 588,081 | 556,638 | 606,088 | 25,163 |
| 6 months prior | 2026-03-05 | 87.8 | 400.10 | 563,372 | 531,929 | 606,088 | 24,254 |
| 1 year prior | 2025-09-05 | 96.4 | 402.18 | 615,788 | 584,345 | 606,088 | 26,144 |
*
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 | 2026-09-05 23:30 | 399.04 | 403.00 | -3.96 |
| 1 hour prior | 2026-09-05 22:30 | 399.04 | 403.00 | -3.96 |
| 2 hours prior | 2026-09-05 21:30 | 399.04 | 403.00 | -3.96 |
| 6 hours prior | 2026-09-05 17:30 | 399.03 | 403.00 | -3.97 |
| 12 hours prior | 2026-09-05 11:30 | 399.05 | 403.00 | -3.95 |
| 24 hours prior | 2026-09-04 23:30 | 399.05 | 403.00 | -3.95 |
| 48 hours prior | 2026-09-03 23:30 | 399.08 | 403.00 | -3.92 |
*
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
