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 2014-10-25

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 2014-10-25 96.2 824.65 -0.35 130,937 110,635 115,056 6,105
Yesterday 2014-10-24 96.2 824.66 -0.34 130,998 110,696 115,056 6,107
2 days ago 2014-10-23 96.2 824.65 -0.35 130,937 110,635 115,056 6,105
1 week ago 2014-10-18 96.3 824.67 -0.33 131,059 110,757 115,056 6,110
1 month ago 2014-09-25 95.7 824.57 -0.43 130,450 110,148 115,056 6,085
3 months ago 2014-07-25 96.8 824.77 -0.23 131,672 111,370 115,056 6,136
6 months ago 2014-04-25 96.2 824.66 -0.34 130,998 110,696 115,056 6,107
1 year ago 2013-10-25 97.8 824.95 -0.05 132,781 112,479 115,056 6,207
*

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