E. V. Spence Reservoir: 9.5% full as of 2026-09-24
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 | 2026-09-24 | 9.5 | 1,842.31 | 48,890 | 48,890 | 517,272 | 3,253 |
| Yesterday | 2026-09-23 | 9.5 | 1,842.34 | 48,988 | 48,988 | 517,272 | 3,257 |
| 2 days ago | 2026-09-22 | 9.5 | 1,842.35 | 49,020 | 49,020 | 517,272 | 3,258 |
| 1 week ago | 2026-09-17 | 9.6 | 1,842.47 | 49,412 | 49,412 | 517,272 | 3,275 |
| 1 month ago | 2026-08-24 | 10.1 | 1,843.25 | 52,008 | 52,008 | 517,272 | 3,381 |
| 3 months ago | 2026-06-24 | 10.9 | 1,844.49 | 56,322 | 56,322 | 517,272 | 3,583 |
| 6 months ago | 2026-03-24 | 11.7 | 1,845.60 | 60,436 | 60,436 | 517,272 | 3,814 |
| 1 year ago | 2025-09-24 | 13.8 | 1,848.37 | 71,404 | 71,404 | 517,272 | 4,207 |
*
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 | 2026-09-24 07:00 | 1,842.31 | 1,898.00 | -55.69 |
| 1 hour prior | 2026-09-24 06:00 | 1,842.30 | 1,898.00 | -55.70 |
| 2 hours prior | 2026-09-24 05:00 | 1,842.30 | 1,898.00 | -55.70 |
| 6 hours prior | 2026-09-24 01:00 | 1,842.31 | 1,898.00 | -55.69 |
| 12 hours prior | 2026-09-23 19:00 | 1,842.33 | 1,898.00 | -55.67 |
| 24 hours prior | 2026-09-23 07:00 | 1,842.34 | 1,898.00 | -55.66 |
| 48 hours prior | 2026-09-22 07:00 | 1,842.34 | 1,898.00 | -55.66 |
*
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
