Lake Ray Hubbard: 100.0% full as of 2023-03-28

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, and (2) 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 2023-03-28 100.0 435.55 440,610 439,559 439,559 21,010
Yesterday 2023-03-27 100.0 435.52 439,979 439,559 439,559 20,973
2 days ago 2023-03-26 100.0 435.52 439,979 439,559 439,559 20,973
1 week ago 2023-03-21 99.6 435.41 437,679 437,679 439,559 20,834
1 month ago 2023-02-28 100.0 435.53 440,189 439,559 439,559 20,985
3 months ago 2022-12-28 98.9 435.27 434,775 434,775 439,559 20,673
6 months ago 2022-09-28 88.3 432.94 387,993 387,993 439,559 19,681
1 year ago 2022-03-28 92.9 433.97 408,425 408,425 439,559 19,998
*

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 2023-03-28 12:30 435.54 435.50 0.04
1 hour prior 2023-03-28 11:30 435.55 435.50 0.05
2 hours prior 2023-03-28 10:30 435.55 435.50 0.05
6 hours prior 2023-03-28 06:30 435.57 435.50 0.07
12 hours prior 2023-03-28 00:30 435.49 435.50 -0.01
24 hours prior 2023-03-27 12:30 435.51 435.50 0.01
48 hours prior 2023-03-26 12:30 435.50 435.50 0.00
*

Data is provisional and subject to revision.

Additional Information

Impoundment date 1969-01-01
Gauge USGS:08061550
Vertical datum NGVD29
Dead pool elevation 388.00 ft above NGVD29
Service spillway crest elevation 409.50 ft above NGVD29
Top of flood gate elevation 437.50 ft above NGVD29
Emergency spillway crest elevation 437.50 ft above NGVD29
Top of dam elevation 450.00 ft above NGVD29
Conservation pool elevation 435.50 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