Lake Ray Hubbard is 96.6% full as of 2016-08-26

The elevation-storage rating curve used to produce the storage hydrograph is made of two segments: (1) the segment up to the conservation pool top (below the red line) is based on measured data, while the segment in the flood pool (above the red line) is an extrapolation from the first segment and shouldn't be relied upon for flood storage information.

Date Percent Full Mean Water Level
(ft)
Reservoir Storage
(acre-ft)
Conservation Storage
(acre-ft)
Conservation Capacity
(acre-ft)
Surface Area
(acres)
Today 2016-08-26 96.6 434.76 436,770 436,770 452,040 20,544
Yesterday 2016-08-25 96.7 434.78 437,181 437,181 452,040 20,549
2 days ago 2016-08-24 96.8 434.79 437,387 437,387 452,040 20,551
1 week ago 2016-08-19 94.9 434.38 428,981 428,981 452,040 20,451
1 month ago 2016-07-26 98.4 435.15 444,801 444,801 452,040 20,639
3 months ago 2016-05-26 99.8 435.46 451,211 451,211 452,040 20,858
6 months ago 2016-02-26 100.0 435.50 452,040 452,040 452,040 - n.a. -
1 year ago 2015-08-26 94.4 434.27 426,733 426,733 452,040 20,424
*

Percent Full is based on Conservation Storage and Conservation Capacity and doesn't account for storage in flood pool.

**

   Values above, including today's are averaged conditions. For near real-time instantaneous water level, see table below or the interactive map viewer.

Most Recent Instantaneous Water Level

Date/time Water Level
(ft)
Conservation Pool Elevation
(ft)
Height Above Conservation Pool
(ft)
Most recent 2016-08-26 13:30 434.77 435.5 -0.7 below flood pool
1 hour prior 2016-08-26 12:30 434.77 435.5 -0.7 below flood pool
2 hours prior 2016-08-26 11:30 434.75 435.5 -0.8 below flood pool
6 hours prior 2016-08-26 07:30 434.75 435.5 -0.8 below flood pool
12 hours prior 2016-08-26 01:30 434.75 435.5 -0.8 below flood pool
24 hours prior 2016-08-25 13:30 434.78 435.5 -0.7 below flood pool
48 hours prior 2016-08-24 13:30 434.78 435.5 -0.7 below flood pool
*

Data is provisional and subject to revision.

Additional Information

Impoundment date 1969-01-01
Vertical datum NGVD29
Gauge USGS:08061550
Dead pool elevation 388.0 ft above NGVD29
Service spillway crest elevation 409.5 ft above NGVD29
Conservation pool elevation 435.5 ft above NGVD29
Top of flood gate elevation 437.5 ft above NGVD29
Emergency spillway crest elevation 437.5 ft above NGVD29
Top of dam elevation 450 ft above NGVD29
Data download (CSV) period of record, last one year, last 30 days

Elevation-Area-Capacity Curves

1969-01-01 (source: usgs)
1997-10-01 (source: usgs)
2005-05-01 (source: twdb) : GIS Data