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 96.7% full as of 2015-03-29

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 2015-03-29 96.7 824.75 -0.25 131,549 111,247 115,056 6,130
Yesterday 2015-03-28 96.7 824.76 -0.24 131,610 111,308 115,056 6,133
2 days ago 2015-03-27 96.6 824.74 -0.26 131,488 111,186 115,056 6,128
1 week ago 2015-03-22 96.2 824.65 -0.35 130,937 110,635 115,056 6,105
1 month ago 2015-02-28 96.5 824.72 -0.28 131,365 111,063 115,056 6,123
3 months ago 2014-12-29 96.4 824.69 -0.31 131,182 110,880 115,056 6,115
6 months ago 2014-09-29 95.5 824.53 -0.47 130,206 109,904 115,056 6,075
1 year ago 2014-03-29 96.6 824.73 -0.27 131,426 111,124 115,056 6,125
*

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