recent changes

2013-06-19: The vertical datum of the 1998 TWDB rating curve for Lake Graham has been adjusted from NGVD29 to NGVD29+1.3ft.

Lake Graham is 40.7% full as of 2014-09-23

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)
Today 2014-09-23 40.7 1,061.23 -15.07 18,439 18,425 45,288 1,457
Yesterday 2014-09-22 40.7 1,061.25 -15.05 18,468 18,454 45,288 1,458
2 days ago 2014-09-21 40.8 1,061.27 -15.03 18,498 18,484 45,288 1,460
1 week ago 2014-09-16 41.0 1,061.32 -14.98 18,571 18,557 45,288 1,462
1 month ago 2014-08-23 43.2 1,061.99 -14.31 19,563 19,549 45,288 1,502
3 months ago 2014-06-23 44.2 1,062.30 -14.00 20,032 20,018 45,288 1,521
6 months ago 2014-03-23 50.4 1,064.07 -12.23 22,826 22,812 45,288 1,640
1 year ago 2013-09-23 57.3 1,065.92 -10.38 25,976 25,962 45,288 1,764
*

Percent Full is based on Conservation Storage and Conservation Capacity.

Additional Information

Impoundment date 1958-01-01
Vertical datum NGVD29 +1.3
Gauge USGS:08088400
Conservation pool elevation 1076.3 ft above NGVD29
Dead pool elevation 1031.3 ft above NGVD29

Elevation-Area-Capacity Curves

1958-01-01 (source: usgs)
1998-04-01 (source: twdb) : GIS Data