Joe Pool Lake: 90.1% full as of 2026-11-11
Historical Data
| Date | Percent Full |
Mean Water Level (ft) |
Reservoir Storage (acre-ft) |
Conservation Storage (acre-ft) |
Conservation Capacity (acre-ft) |
Surface Area (acres) |
|
|---|---|---|---|---|---|---|---|
| Today | 2026-11-11 | 90.1 | 519.67 | 136,136 | 134,766 | 149,629 | 6,104 |
| Yesterday | 2026-11-10 | 90.1 | 519.68 | 136,197 | 134,827 | 149,629 | 6,106 |
| 2 days ago | 2026-11-09 | 90.1 | 519.69 | 136,259 | 134,889 | 149,629 | 6,108 |
| 1 week ago | 2026-11-04 | 90.6 | 519.79 | 136,870 | 135,500 | 149,629 | 6,128 |
| 1 month ago | 2026-10-11 | 92.7 | 520.32 | 140,148 | 138,778 | 149,629 | 6,241 |
| 3 months ago | 2026-08-11 | 96.1 | 521.12 | 145,217 | 143,847 | 149,629 | 6,441 |
| 6 months ago | 2026-05-11 | 100.0 | 522.10 | 151,668 | 149,629 | 149,629 | 6,708 |
| 1 year ago | 2025-11-11 | 93.5 | 520.51 | 141,338 | 139,968 | 149,629 | 6,284 |
*
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 | 2026-11-11 13:00 | 519.66 | 522.00 | -2.34 |
| 1 hour prior | 2026-11-11 12:00 | 519.66 | 522.00 | -2.34 |
| 2 hours prior | 2026-11-11 11:00 | 519.66 | 522.00 | -2.34 |
| 6 hours prior | 2026-11-11 07:00 | 519.67 | 522.00 | -2.33 |
| 12 hours prior | 2026-11-11 01:00 | 519.67 | 522.00 | -2.33 |
| 24 hours prior | 2026-11-10 13:00 | 519.68 | 522.00 | -2.32 |
| 48 hours prior | 2026-11-09 13:00 | 519.69 | 522.00 | -2.31 |
*
Data is provisional and subject to revision.
Additional Information
| Impoundment date | 1986-01-01 |
| Vertical datum | NGVD29 |
| Dead pool elevation | 466.00 ft above NGVD29 |
| Emergency spillway crest elevation | 541.00 ft above NGVD29 |
| Flood pool elevation | 536.00 ft above NGVD29 |
| Maximum design elevation | 559.50 ft above NGVD29 |
| Top of dam elevation | 564.50 ft above NGVD29 |
| Conservation pool elevation | 522.00 ft above NGVD29 |
| Data download (CSV) | period of record, last one year, last 30 days |
| Data Source | USGS:08049800 |
| USGS Monitoring Location | USGS:08049800 |
Lake Location
