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 2014-07-28

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 2014-07-28 96.7 824.76 -0.24 131,610 111,308 115,056 6,133
Yesterday 2014-07-27 96.8 824.77 -0.23 131,672 111,370 115,056 6,136
2 days ago 2014-07-26 97.0 824.80 -0.20 131,856 111,554 115,056 6,144
1 week ago 2014-07-21 96.0 824.62 -0.38 130,754 110,452 115,056 6,097
1 month ago 2014-06-28 96.3 824.68 -0.32 131,121 110,819 115,056 6,112
3 months ago 2014-04-28 96.4 824.70 -0.30 131,243 110,941 115,056 6,117
6 months ago 2014-01-28 97.4 824.88 -0.12 132,348 112,046 115,056 6,166
1 year ago 2013-07-28 96.2 824.66 -0.34 130,998 110,696 115,056 6,107
*

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