Lake Jacksonville: 96.4% full as of 2026-10-10
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 | 2026-10-10 | 96.4 | 421.20 | 24,814 | 24,752 | 25,670 | 1,136 |
| Yesterday | 2026-10-09 | 96.5 | 421.21 | 24,825 | 24,763 | 25,670 | 1,136 |
| 2 days ago | 2026-10-08 | 96.5 | 421.22 | 24,836 | 24,774 | 25,670 | 1,136 |
| 1 week ago | 2026-10-03 | 96.5 | 421.21 | 24,825 | 24,763 | 25,670 | 1,136 |
| 1 month ago | 2026-09-10 | 97.7 | 421.48 | 25,133 | 25,071 | 25,670 | 1,144 |
| 3 months ago | 2026-07-10 | 99.7 | 421.94 | 25,662 | 25,600 | 25,670 | 1,160 |
| 6 months ago | 2026-04-10 | 100.0 | 422.11 | 25,860 | 25,670 | 25,670 | - n.a. - |
| 1 year ago | 2025-10-10 | 99.8 | 421.95 | 25,674 | 25,612 | 25,670 | 1,161 |
*
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 | 2026-10-10 17:15 | 421.18 | 422.00 | -0.82 |
| 1 hour prior | 2026-10-10 16:15 | 421.19 | 422.00 | -0.81 |
| 2 hours prior | 2026-10-10 15:15 | 421.20 | 422.00 | -0.80 |
| 6 hours prior | 2026-10-10 11:15 | 421.18 | 422.00 | -0.82 |
| 12 hours prior | 2026-10-10 05:15 | 421.20 | 422.00 | -0.80 |
| 24 hours prior | 2026-10-09 17:15 | 421.22 | 422.00 | -0.78 |
| 48 hours prior | 2026-10-08 17:15 | 421.23 | 422.00 | -0.77 |
*
Data is provisional and subject to revision.
Additional Information
| Impoundment date | 1957-01-01 |
| Vertical datum | NGVD29 |
| Dead pool elevation | 372.00 ft above NGVD29 |
| Service spillway crest elevation | 422.00 ft above NGVD29 |
| Emergency spillway crest elevation | 431.00 ft above NGVD29 |
| Top of dam elevation | 438.00 ft above NGVD29 |
| Conservation pool elevation | 422.00 ft above NGVD29 |
| Data download (CSV) | period of record, last one year, last 30 days |
| Data Source | USGS:08032200 |
| USGS Monitoring Location | USGS:08032200 |
Lake Location
