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 95.7% full as of 2014-09-23

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 2014-09-23 95.7 824.57 -0.43 130,450 110,148 115,056 6,085
Yesterday 2014-09-22 95.7 824.56 -0.44 130,389 110,087 115,056 6,083
2 days ago 2014-09-21 95.5 824.52 -0.48 130,145 109,843 115,056 6,073
1 week ago 2014-09-16 96.3 824.67 -0.33 131,059 110,757 115,056 6,110
1 month ago 2014-08-23 96.6 824.73 -0.27 131,426 111,124 115,056 6,125
3 months ago 2014-06-23 96.5 824.71 -0.29 131,304 111,002 115,056 6,120
6 months ago 2014-03-23 96.7 824.75 -0.25 131,549 111,247 115,056 6,130
1 year ago 2013-09-23 96.5 824.72 -0.28 131,365 111,063 115,056 6,123
*

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