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 99.2% full as of 2016-05-23

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 2016-05-23 99.2 692.57 -0.13 125,735 124,770 125,756 7,568
1 day prior 2016-05-22 99.5 692.61 -0.09 126,038 125,073 125,756 7,578
2 days prior 2016-05-21 98.4 692.43 -0.27 124,678 123,713 125,756 7,535
1 week prior 2016-05-16 98.1 692.38 -0.32 124,302 123,337 125,756 7,523
1 month prior 2016-04-23 98.1 692.38 -0.32 124,302 123,337 125,756 7,523
3 months prior 2016-02-23 100.0 692.79 0.09 127,406 125,756 125,756 7,620
6 months prior 2015-11-23 100.0 692.71 0.01 126,797 125,756 125,756 7,601
1 year prior 2015-05-23 98.6 692.46 -0.24 124,904 123,939 125,756 7,542
*

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