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 2014-04-17

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 2014-04-17 96.1 824.64 -0.36 130,876 110,574 115,056 6,102
Yesterday 2014-04-16 96.1 824.63 -0.37 130,815 110,513 115,056 6,100
2 days ago 2014-04-15 96.1 824.64 -0.36 130,876 110,574 115,056 6,102
1 week ago 2014-04-10 95.9 824.61 -0.39 130,693 110,391 115,056 6,095
1 month ago 2014-03-17 96.4 824.70 -0.30 131,243 110,941 115,056 6,117
3 months ago 2014-01-17 97.8 824.95 -0.05 132,781 112,479 115,056 6,207
6 months ago 2013-10-17 97.6 824.92 -0.08 132,595 112,293 115,056 6,178
1 year ago 2013-04-17 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