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 96.1% full as of 2014-12-22

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 2014-12-22 96.1 824.63 -0.37 130,815 110,513 115,056 6,100
Yesterday 2014-12-21 96.0 824.62 -0.38 130,754 110,452 115,056 6,097
2 days ago 2014-12-20 96.0 824.62 -0.38 130,754 110,452 115,056 6,097
1 week ago 2014-12-15 96.7 824.76 -0.24 131,610 111,308 115,056 6,133
1 month ago 2014-11-22 96.0 824.62 -0.38 130,754 110,452 115,056 6,097
3 months ago 2014-09-22 95.7 824.56 -0.44 130,389 110,087 115,056 6,083
6 months ago 2014-06-22 96.6 824.73 -0.27 131,426 111,124 115,056 6,125
1 year ago 2013-12-22 97.2 824.85 -0.15 132,163 111,861 115,056 6,158
*

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