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 2014-07-25

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 2014-07-25 96.7 824.75 -0.25 131,549 111,247 115,056 6,130
Yesterday 2014-07-24 96.5 824.71 -0.29 131,304 111,002 115,056 6,120
2 days ago 2014-07-23 96.1 824.64 -0.36 130,876 110,574 115,056 6,102
1 week ago 2014-07-18 95.8 824.59 -0.41 130,571 110,269 115,056 6,090
1 month ago 2014-06-25 96.3 824.68 -0.32 131,121 110,819 115,056 6,112
3 months ago 2014-04-25 96.2 824.66 -0.34 130,998 110,696 115,056 6,107
6 months ago 2014-01-25 97.4 824.89 -0.11 132,410 112,108 115,056 6,169
1 year ago 2013-07-25 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