Lake Ray Hubbard: 92.4% full as of 2026-01-12

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 2026-01-12 92.4 433.86 406,227 406,227 439,559 19,961
Yesterday 2026-01-11 92.6 433.89 406,826 406,826 439,559 19,971
2 days ago 2026-01-10 92.9 433.96 408,225 408,225 439,559 19,995
1 week ago 2026-01-05 92.5 433.88 406,626 406,626 439,559 19,968
1 month ago 2025-12-12 94.4 434.29 414,842 414,842 439,559 20,113
3 months ago 2025-10-12 92.3 433.83 405,629 405,629 439,559 19,952
6 months ago 2025-07-12 99.4 435.37 436,848 436,848 439,559 20,787
1 year ago 2025-01-12 94.3 434.27 414,440 414,440 439,559 20,105
*

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 2026-01-12 00:00 433.86 435.50 -1.64
1 hour prior 2026-01-11 23:00 433.87 435.50 -1.63
2 hours prior 2026-01-11 22:00 433.87 435.50 -1.63
6 hours prior 2026-01-11 18:00 433.88 435.50 -1.62
12 hours prior 2026-01-11 12:00 433.89 435.50 -1.61
24 hours prior 2026-01-11 00:00 433.89 435.50 -1.61
48 hours prior 2026-01-10 00:00 433.92 435.50 -1.58
*

Data is provisional and subject to revision.

Additional Information

Impoundment date 1969-01-01
Vertical datum NGVD29
Dead pool elevation 388.00 ft above NGVD29
Service spillway crest elevation 409.50 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
Data Source USGS:08061550

Lake Location