Lake Fork Reservoir: 86.7% full as of 2026-08-09
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 | 2026-08-09 | 86.7 | 399.83 | 556,852 | 525,409 | 606,088 | 24,071 |
| 1 day prior | 2026-08-08 | 86.8 | 399.85 | 557,334 | 525,891 | 606,088 | 24,082 |
| 2 days prior | 2026-08-07 | 86.8 | 399.87 | 557,815 | 526,372 | 606,088 | 24,093 |
| 1 week prior | 2026-08-02 | 87.6 | 400.05 | 562,162 | 530,719 | 606,088 | 24,209 |
| 1 month prior | 2026-07-09 | 90.6 | 400.80 | 580,573 | 549,130 | 606,088 | 24,890 |
| 3 months prior | 2026-05-09 | 88.7 | 400.34 | 569,221 | 537,778 | 606,088 | 24,472 |
| 6 months prior | 2026-02-09 | 87.0 | 399.92 | 559,020 | 527,577 | 606,088 | 24,120 |
| 1 year prior | 2025-08-09 | 99.0 | 402.77 | 631,371 | 599,928 | 606,088 | 26,680 |
*
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 | 2026-08-09 23:30 | 399.81 | 403.00 | -3.19 |
| 1 hour prior | 2026-08-09 22:30 | 399.80 | 403.00 | -3.20 |
| 2 hours prior | 2026-08-09 21:30 | 399.81 | 403.00 | -3.19 |
| 6 hours prior | 2026-08-09 17:30 | 399.81 | 403.00 | -3.19 |
| 12 hours prior | 2026-08-09 11:30 | 399.83 | 403.00 | -3.17 |
| 24 hours prior | 2026-08-08 23:30 | 399.84 | 403.00 | -3.16 |
| 48 hours prior | 2026-08-07 23:30 | 399.86 | 403.00 | -3.14 |
*
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
