Lake Ray Hubbard: 98.8% full as of 2017-07-25

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.

Historical Data

Date Percent Full Mean Water Level
(ft)
Reservoir Storage
(acre-ft)
Conservation Storage
(acre-ft)
Conservation Capacity
(acre-ft)
Surface Area
(acres)
Today 2017-07-25 98.8 435.25 434,362 434,362 439,559 20,652
Yesterday 2017-07-24 99.0 435.28 434,981 434,981 439,559 20,683
2 days ago 2017-07-23 98.7 435.23 433,949 433,949 439,559 20,631
1 week ago 2017-07-18 99.7 435.43 438,097 438,097 439,559 20,860
1 month ago 2017-06-25 100.0 435.55 440,610 439,559 439,559 21,010
3 months ago 2017-04-25 99.0 435.29 435,188 435,188 439,559 20,694
6 months ago 2017-01-25 96.2 434.68 422,716 422,716 439,559 20,269
1 year ago 2016-07-25 98.4 435.16 432,507 432,507 439,559 20,564
*

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 2017-07-25 20:30 435.24 435.5 -0.3 below flood pool
1 hour prior 2017-07-25 19:30 435.24 435.5 -0.3 below flood pool
2 hours prior 2017-07-25 18:30 435.24 435.5 -0.3 below flood pool
6 hours prior 2017-07-25 14:30 435.25 435.5 -0.2 below flood pool
12 hours prior 2017-07-25 08:30 435.25 435.5 -0.2 below flood pool
24 hours prior 2017-07-24 20:30 435.27 435.5 -0.2 below flood pool
48 hours prior 2017-07-23 20:30 435.22 435.5 -0.3 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
2015-08-01 (source: twdb) : GIS Data

Lake Location