Lake Athens: 93.4% full as of 2022-11-27

The elevation-storage rating curve used to produce the storage hydrograph is made of two segments: (1) the segment up to the conservation pool top (below the red line) is based on measured data, and (2) the segment in the flood pool (above the red line) is an extrapolation from the first segment and shouldn't be relied upon for flood storage information.

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 2022-11-27 93.4 438.92 27,608 27,567 29,503 1,686
1 day prior 2022-11-26 93.1 438.86 27,504 27,463 29,503 1,680
2 days prior 2022-11-25 92.4 438.75 27,314 27,273 29,503 1,668
1 week prior 2022-11-20 91.1 438.51 26,905 26,864 29,503 1,642
1 month prior 2022-10-27 89.5 438.23 26,436 26,395 29,503 1,612
3 months prior 2022-08-27 92.4 438.75 27,314 27,273 29,503 1,668
6 months prior 2022-05-27 100.0 440.31 30,124 29,503 29,503 - n.a. -
1 year prior 2021-11-27 100.0 440.19 29,898 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 2022-11-28 02:30 438.93 440.00 -1.07
1 hour prior 2022-11-28 01:30 438.93 440.00 -1.07
2 hours prior 2022-11-28 00:30 438.93 440.00 -1.07
6 hours prior 2022-11-27 20:30 438.93 440.00 -1.07
12 hours prior 2022-11-27 14:30 438.93 440.00 -1.07
24 hours prior 2022-11-27 02:30 438.91 440.00 -1.09
48 hours prior 2022-11-26 02:30 438.77 440.00 -1.23
*

Data is provisional and subject to revision.

Additional Information

Impoundment date 1963-01-01
Gauge USGS:08031290
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

Lake Location