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 96.3% full as of 2015-04-27

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)
Most recent 2015-04-27 96.3 824.67 -0.33 131,059 110,757 115,056 6,110
1 day prior 2015-04-26 96.1 824.63 -0.37 130,815 110,513 115,056 6,100
2 days prior 2015-04-25 96.1 824.64 -0.36 130,876 110,574 115,056 6,102
1 week prior 2015-04-20 96.2 824.66 -0.34 130,998 110,696 115,056 6,107
1 month prior 2015-03-27 96.6 824.74 -0.26 131,488 111,186 115,056 6,128
3 months prior 2015-01-27 96.6 824.73 -0.27 131,426 111,124 115,056 6,125
6 months prior 2014-10-27 96.0 824.62 -0.38 130,754 110,452 115,056 6,097
1 year prior 2014-04-27 96.4 824.69 -0.31 131,182 110,880 115,056 6,115
*

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