Lake Athens: 93.4% full as of 2026-09-13
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 | 2026-09-13 | 93.4 | 438.91 | 27,590 | 27,549 | 29,503 | 1,685 |
| Yesterday | 2026-09-12 | 93.5 | 438.93 | 27,625 | 27,584 | 29,503 | 1,687 |
| 2 days ago | 2026-09-11 | 93.6 | 438.94 | 27,642 | 27,601 | 29,503 | 1,689 |
| 1 week ago | 2026-09-06 | 94.1 | 439.04 | 27,817 | 27,776 | 29,503 | 1,699 |
| 1 month ago | 2026-08-13 | 96.4 | 439.42 | 28,489 | 28,448 | 29,503 | 1,740 |
| 3 months ago | 2026-06-13 | 100.0 | 440.03 | 29,600 | 29,503 | 29,503 | - n.a. - |
| 6 months ago | 2026-03-13 | 100.0 | 440.43 | 30,351 | 29,503 | 29,503 | - n.a. - |
| 1 year ago | 2025-09-13 | 100.0 | 440.29 | 30,086 | 29,503 | 29,503 | - n.a. - |
*
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 | 2026-09-13 19:30 | 438.90 | 440.00 | -1.10 |
| 1 hour prior | 2026-09-13 18:30 | 438.89 | 440.00 | -1.11 |
| 2 hours prior | 2026-09-13 17:30 | 438.90 | 440.00 | -1.10 |
| 6 hours prior | 2026-09-13 13:30 | 438.90 | 440.00 | -1.10 |
| 12 hours prior | 2026-09-13 07:30 | 438.91 | 440.00 | -1.09 |
| 24 hours prior | 2026-09-12 19:30 | 438.92 | 440.00 | -1.08 |
| 48 hours prior | 2026-09-11 19:30 | 438.94 | 440.00 | -1.06 |
*
Data is provisional and subject to revision.
Additional Information
| Impoundment date | 1963-01-01 |
| Vertical datum | NAVD88 |
| Dead pool elevation | 396.50 ft above NAVD88 |
| Service spillway crest elevation | 440.00 ft above NGVD29 |
| Emergency spillway crest elevation | 446.00 ft above NGVD29 |
| Top of dam elevation | 453.00 ft above NGVD29 |
| Conservation pool elevation | 440.00 ft above NAVD88 |
| Data download (CSV) | period of record, last one year, last 30 days |
Elevation-Area-Capacity Curves
1998-02-01 (source: TWDB)
: GIS Data
|
|
| Data Source | USGS:08031290 |
| USGS Monitoring Location | USGS:08031290 |
Lake Location
