Lake Fork Reservoir: 83.1% full as of 2026-09-11
Historical Data
| Date | Percent Full |
Mean Water Level (ft) |
Reservoir Storage (acre-ft) |
Conservation Storage (acre-ft) |
Conservation Capacity (acre-ft) |
Surface Area (acres) |
|
|---|---|---|---|---|---|---|---|
| Most recent | 2026-09-11 | 83.1 | 398.92 | 535,164 | 503,721 | 606,088 | 23,600 |
| 1 day prior | 2026-09-10 | 83.2 | 398.95 | 535,873 | 504,430 | 606,088 | 23,615 |
| 2 days prior | 2026-09-09 | 83.3 | 398.97 | 536,345 | 504,902 | 606,088 | 23,625 |
| 1 week prior | 2026-09-04 | 83.7 | 399.07 | 538,710 | 507,267 | 606,088 | 23,675 |
| 1 month prior | 2026-08-11 | 86.4 | 399.76 | 555,168 | 523,725 | 606,088 | 24,034 |
| 3 months prior | 2026-06-11 | 92.8 | 401.32 | 593,640 | 562,197 | 606,088 | 25,363 |
| 6 months prior | 2026-03-11 | 88.6 | 400.30 | 568,241 | 536,798 | 606,088 | 24,436 |
| 1 year prior | 2025-09-11 | 95.9 | 402.05 | 612,397 | 580,954 | 606,088 | 26,026 |
*
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 | 2026-09-11 23:30 | 398.92 | 403.00 | -4.08 |
| 1 hour prior | 2026-09-11 22:30 | 398.91 | 403.00 | -4.09 |
| 2 hours prior | 2026-09-11 21:30 | 398.91 | 403.00 | -4.09 |
| 6 hours prior | 2026-09-11 17:30 | 398.90 | 403.00 | -4.10 |
| 12 hours prior | 2026-09-11 11:30 | 398.93 | 403.00 | -4.07 |
| 24 hours prior | 2026-09-10 23:30 | 398.94 | 403.00 | -4.06 |
| 48 hours prior | 2026-09-09 23:30 | 398.95 | 403.00 | -4.05 |
*
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
