Lake Athens: 91.6% full as of 2026-09-28
Historical Data
| Date | Percent Full |
Mean Water Level (ft) |
Reservoir Storage (acre-ft) |
Conservation Storage (acre-ft) |
Conservation Capacity (acre-ft) |
Surface Area (acres) |
|
|---|---|---|---|---|---|---|---|
| Most recent | 2026-09-28 | 91.6 | 438.60 | 27,058 | 27,017 | 29,503 | 1,652 |
| 1 day prior | 2026-09-27 | 91.7 | 438.62 | 27,092 | 27,051 | 29,503 | 1,654 |
| 2 days prior | 2026-09-26 | 91.7 | 438.63 | 27,109 | 27,068 | 29,503 | 1,655 |
| 1 week prior | 2026-09-21 | 92.3 | 438.73 | 27,280 | 27,239 | 29,503 | 1,666 |
| 1 month prior | 2026-08-28 | 94.3 | 439.07 | 27,869 | 27,828 | 29,503 | 1,703 |
| 3 months prior | 2026-06-28 | 100.0 | 440.18 | 29,879 | 29,503 | 29,503 | - n.a. - |
| 6 months prior | 2026-03-28 | 100.0 | 440.19 | 29,898 | 29,503 | 29,503 | - n.a. - |
| 1 year prior | 2025-09-28 | 100.0 | 440.14 | 29,805 | 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 | 2026-09-28 23:30 | 438.60 | 440.00 | -1.40 |
| 1 hour prior | 2026-09-28 22:30 | 438.60 | 440.00 | -1.40 |
| 2 hours prior | 2026-09-28 21:30 | 438.60 | 440.00 | -1.40 |
| 6 hours prior | 2026-09-28 17:30 | 438.60 | 440.00 | -1.40 |
| 12 hours prior | 2026-09-28 11:30 | 438.60 | 440.00 | -1.40 |
| 24 hours prior | 2026-09-27 23:30 | 438.61 | 440.00 | -1.39 |
| 48 hours prior | 2026-09-26 23:30 | 438.62 | 440.00 | -1.38 |
*
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
