Lake Athens: 93.1% full as of 2026-09-15
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 | 2026-09-15 | 93.1 | 438.86 | 27,504 | 27,463 | 29,503 | 1,680 |
| Yesterday | 2026-09-14 | 93.2 | 438.88 | 27,538 | 27,497 | 29,503 | 1,682 |
| 2 days ago | 2026-09-13 | 93.3 | 438.90 | 27,573 | 27,532 | 29,503 | 1,684 |
| 1 week ago | 2026-09-08 | 93.9 | 439.00 | 27,747 | 27,706 | 29,503 | 1,695 |
| 1 month ago | 2026-08-15 | 96.1 | 439.37 | 28,399 | 28,358 | 29,503 | 1,735 |
| 3 months ago | 2026-06-15 | 100.0 | 440.49 | 30,465 | 29,503 | 29,503 | - n.a. - |
| 6 months ago | 2026-03-15 | 100.0 | 440.40 | 30,294 | 29,503 | 29,503 | - n.a. - |
| 1 year ago | 2025-09-15 | 100.0 | 440.26 | 30,029 | 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 | 2026-09-15 03:30 | 438.86 | 440.00 | -1.14 |
| 1 hour prior | 2026-09-15 02:30 | 438.86 | 440.00 | -1.14 |
| 2 hours prior | 2026-09-15 01:30 | 438.86 | 440.00 | -1.14 |
| 6 hours prior | 2026-09-14 21:30 | 438.87 | 440.00 | -1.13 |
| 12 hours prior | 2026-09-14 15:30 | 438.88 | 440.00 | -1.12 |
| 24 hours prior | 2026-09-14 03:30 | 438.88 | 440.00 | -1.12 |
| 48 hours prior | 2026-09-13 03:30 | 438.91 | 440.00 | -1.09 |
*
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
