recent changes

2013-06-19: The vertical datums of gauge, conservation pool and dead pool elevations for this lake have been adjusted to NAVD88+0.68ft.

Lake L. B. Johnson is 94.7% full as of 2015-05-28

Date Percent Full Water Level
(ft)
Height Above Conservation Pool
(ft)
Reservoir Storage
(acre-ft)
Conservation Storage
(acre-ft)
Conservation Capacity
(acre-ft)
Surface Area
(acres)
Today 2015-05-28 94.7 824.38 -0.62 129,298 108,996 115,056 6,038
Yesterday 2015-05-27 94.6 824.35 -0.65 129,117 108,815 115,056 6,031
2 days ago 2015-05-26 94.9 824.41 -0.59 129,479 109,177 115,056 6,045
1 week ago 2015-05-21 95.4 824.50 -0.50 130,024 109,722 115,056 6,068
1 month ago 2015-04-28 96.5 824.71 -0.29 131,304 111,002 115,056 6,120
3 months ago 2015-02-28 96.5 824.72 -0.28 131,365 111,063 115,056 6,123
6 months ago 2014-11-28 96.4 824.70 -0.30 131,243 110,941 115,056 6,117
1 year ago 2014-05-28 95.1 824.45 -0.55 129,721 109,419 115,056 6,055
*

Percent Full is based on Conservation Storage and Conservation Capacity.

Additional Information

Impoundment date 1951-01-01
Vertical datum NAVD88 +0.68
Gauge LCRA:2958
Conservation pool elevation 825 ft above NGVD29 +0.68
Dead pool elevation 793 ft above NGVD29 +0.68

Elevation-Area-Capacity Curves

2007-05-01 (source: twdb) : GIS Data