recent changes

2015-06-17: The elevation for the top of the conservation pool for Lake Granbury has been set to the reservoir's normal maximum operating elevation of 692.7 feet. The calculation for percent full is now based on this elevation.

Lake Granbury is 98.6% full as of 2016-05-01

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 2016-05-01 98.6 692.47 -0.23 124,980 124,015 125,756 7,544
Yesterday 2016-04-30 98.9 692.52 -0.18 125,357 124,392 125,756 7,556
2 days ago 2016-04-29 99.3 692.58 -0.12 125,811 124,846 125,756 7,571
1 week ago 2016-04-24 98.0 692.36 -0.34 124,151 123,186 125,756 7,518
1 month ago 2016-04-01 99.5 692.61 -0.09 126,038 125,073 125,756 7,578
3 months ago 2016-02-01 99.9 692.68 -0.02 126,569 125,604 125,756 7,594
6 months ago 2015-11-01 99.6 692.64 -0.06 126,266 125,301 125,756 7,585
1 year ago 2015-05-01 95.0 691.86 -0.84 120,422 119,457 125,756 7,398
*

Percent Full is based on Conservation Storage and Conservation Capacity.

Additional Information

Impoundment date 1969-01-01
Vertical datum NGVD29
Gauge USGS:08090900
Conservation pool elevation 692.7 ft above NGVD29
Dead pool elevation 640.0 ft above NGVD29
Data download (CSV) period of record, last one year, last 30 days

Elevation-Area-Capacity Curves

1969-01-01 (source: usgs)
2003-07-01 (source: twdb) : GIS Data