E. V. Spence Reservoir: 10.3% full as of 2026-08-14
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 | 2026-08-14 | 10.3 | 1,843.64 | 53,338 | 53,338 | 517,272 | 3,441 |
| Yesterday | 2026-08-13 | 10.3 | 1,843.67 | 53,441 | 53,441 | 517,272 | 3,446 |
| 2 days ago | 2026-08-12 | 10.4 | 1,843.73 | 53,648 | 53,648 | 517,272 | 3,455 |
| 1 week ago | 2026-08-07 | 10.5 | 1,843.96 | 54,447 | 54,447 | 517,272 | 3,491 |
| 1 month ago | 2026-07-14 | 10.4 | 1,843.82 | 53,960 | 53,960 | 517,272 | 3,469 |
| 3 months ago | 2026-05-14 | 11.2 | 1,844.98 | 58,100 | 58,100 | 517,272 | 3,684 |
| 6 months ago | 2026-02-14 | 12.1 | 1,846.20 | 62,744 | 62,744 | 517,272 | 3,878 |
| 1 year ago | 2025-08-14 | 14.6 | 1,849.35 | 75,626 | 75,626 | 517,272 | 4,377 |
*
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 | 2026-08-14 10:00 | 1,843.62 | 1,898.00 | -54.38 |
| 1 hour prior | 2026-08-14 09:00 | 1,843.62 | 1,898.00 | -54.38 |
| 2 hours prior | 2026-08-14 08:00 | 1,843.63 | 1,898.00 | -54.37 |
| 6 hours prior | 2026-08-14 04:00 | 1,843.63 | 1,898.00 | -54.37 |
| 12 hours prior | 2026-08-13 22:00 | 1,843.65 | 1,898.00 | -54.35 |
| 24 hours prior | 2026-08-13 10:00 | 1,843.68 | 1,898.00 | -54.32 |
| 48 hours prior | 2026-08-12 10:00 | 1,843.72 | 1,898.00 | -54.28 |
*
Data is provisional and subject to revision.
Additional Information
| Impoundment date | 1969-01-01 |
| Vertical datum | NGVD29 |
| Dead pool elevation | 1,790.00 ft above NGVD29 |
| Service spillway crest elevation | 1,878.00 ft above NGVD29 |
| Emergency spillway crest elevation | 1,908.00 ft above NGVD29 |
| Top of dam elevation | 1,928.00 ft above NGVD29 |
| Conservation pool elevation | 1,898.00 ft above NGVD29 |
| Data download (CSV) | period of record, last one year, last 30 days |
| Data Source | USGS:08123950 |
| USGS Monitoring Location | USGS:08123950 |
Lake Location
