Lake Ray Hubbard is 97.7% full as of 2016-07-30

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)
Most recent 2016-07-30 97.7 435.00 441,708 441,708 452,040 20,603
1 day prior 2016-07-29 97.9 435.03 442,326 442,326 452,040 20,610
2 days prior 2016-07-28 98.0 435.07 443,151 443,151 452,040 20,620
1 week prior 2016-07-23 98.8 435.23 446,453 446,453 452,040 20,659
1 month prior 2016-06-30 100.0 435.58 453,699 452,040 452,040 - n.a. -
3 months prior 2016-04-30 100.0 435.50 452,040 452,040 452,040 - n.a. -
6 months prior 2016-01-30 100.0 435.52 452,455 452,040 452,040 - n.a. -
1 year prior 2015-07-30 99.8 435.46 451,211 451,211 452,040 20,858
*

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 2016-07-30 23:30 434.96 435.5 -0.5 below flood pool
1 hour prior 2016-07-30 22:30 434.98 435.5 -0.5 below flood pool
2 hours prior 2016-07-30 21:30 434.99 435.5 -0.5 below flood pool
6 hours prior 2016-07-30 17:30 434.98 435.5 -0.5 below flood pool
12 hours prior 2016-07-30 11:30 435.01 435.5 -0.5 below flood pool
24 hours prior 2016-07-29 23:30 435.02 435.5 -0.5 below flood pool
48 hours prior 2016-07-28 23:30 435.07 435.5 -0.4 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