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 96.6% full as of 2015-03-04

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 2015-03-04 96.6 824.73 -0.27 131,426 111,124 115,056 6,125
Yesterday 2015-03-03 96.5 824.71 -0.29 131,304 111,002 115,056 6,120
2 days ago 2015-03-02 96.5 824.71 -0.29 131,304 111,002 115,056 6,120
1 week ago 2015-02-25 96.4 824.69 -0.31 131,182 110,880 115,056 6,115
1 month ago 2015-02-04 96.5 824.71 -0.29 131,304 111,002 115,056 6,120
3 months ago 2014-12-04 96.2 824.65 -0.35 130,937 110,635 115,056 6,105
6 months ago 2014-09-04 96.2 824.65 -0.35 130,937 110,635 115,056 6,105
1 year ago 2014-03-04 96.7 824.76 -0.24 131,610 111,308 115,056 6,133
*

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