Lake Athens: 100.0% full as of 2018-01-21

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)
Today 2018-01-21 100.0 440.12 29,767 29,503 29,503 - n.a. -
Yesterday 2018-01-20 100.0 440.11 29,749 29,503 29,503 - n.a. -
2 days ago 2018-01-19 100.0 440.10 29,730 29,503 29,503 - n.a. -
1 week ago 2018-01-14 100.0 440.04 29,619 29,503 29,503 - n.a. -
1 month ago 2017-12-21 98.3 439.73 29,048 29,007 29,503 1,774
3 months ago 2017-10-21 94.2 439.05 27,834 27,793 29,503 1,700
6 months ago 2017-07-21 100.0 440.16 29,842 29,503 29,503 - n.a. -
1 year ago 2017-01-21 100.0 440.58 30,637 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 2018-01-21 11:30 440.13 440.0 0.1 into flood pool
1 hour prior 2018-01-21 10:30 440.12 440.0 0.1 into flood pool
2 hours prior 2018-01-21 09:30 440.13 440.0 0.1 into flood pool
6 hours prior 2018-01-21 05:30 440.13 440.0 0.1 into flood pool
12 hours prior 2018-01-20 23:30 440.12 440.0 0.1 into flood pool
24 hours prior 2018-01-20 11:30 440.11 440.0 0.1 into flood pool
48 hours prior 2018-01-19 11:30 440.10 440.0 0.1 into flood pool
*

Data is provisional and subject to revision.

Additional Information

Impoundment date 1963-01-01
Vertical datum NAVD88
Gauge USGS:08031290
Dead pool elevation 396.5 ft above NAVD88
Service spillway crest elevation 440.0 ft above NGVD29
Emergency spillway crest elevation 446.0 ft above NGVD29
Top of dam elevation 453.0 ft above NGVD29
Conservation pool elevation 440.0 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