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 96.2% full as of 2014-10-22

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 2014-10-22 96.2 824.65 -0.35 130,937 110,635 115,056 6,105
Yesterday 2014-10-21 96.2 824.66 -0.34 130,998 110,696 115,056 6,107
2 days ago 2014-10-20 96.2 824.65 -0.35 130,937 110,635 115,056 6,105
1 week ago 2014-10-15 96.2 824.65 -0.35 130,937 110,635 115,056 6,105
1 month ago 2014-09-22 95.7 824.56 -0.44 130,389 110,087 115,056 6,083
3 months ago 2014-07-22 96.0 824.62 -0.38 130,754 110,452 115,056 6,097
6 months ago 2014-04-22 96.2 824.65 -0.35 130,937 110,635 115,056 6,105
1 year ago 2013-10-22 97.7 824.94 -0.06 132,719 112,417 115,056 6,197
*

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