Lake Ray Hubbard: 82.9% full as of 2026-09-28

Historical Data

Date Percent Full Mean Water Level
(ft) 		Reservoir Storage
(acre-ft) 		Conservation Storage
(acre-ft) 		Conservation Capacity
(acre-ft) 		Surface Area
(acres)
Most recent 2026-09-28 82.9 431.73 364,399 364,399 439,559 19,303
1 day prior 2026-09-27 83.0 431.76 364,978 364,978 439,559 19,313
2 days prior 2026-09-26 83.3 431.81 365,944 365,944 439,559 19,330
1 week prior 2026-09-21 84.4 432.07 370,982 370,982 439,559 19,422
1 month prior 2026-08-28 89.7 433.25 394,109 394,109 439,559 19,774
3 months prior 2026-06-28 99.7 435.44 438,306 438,306 439,559 20,872
6 months prior 2026-03-28 100.0 435.50 439,559 439,559 439,559 20,947
1 year prior 2025-09-28 94.6 434.33 415,647 415,647 439,559 20,128
*

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 2026-09-28 23:15 431.69 435.50 -3.81
1 hour prior 2026-09-28 22:15 431.71 435.50 -3.79
2 hours prior 2026-09-28 21:15 431.70 435.50 -3.80
6 hours prior 2026-09-28 17:15 431.72 435.50 -3.78
12 hours prior 2026-09-28 11:15 431.74 435.50 -3.76
24 hours prior 2026-09-27 23:15 431.74 435.50 -3.76
48 hours prior 2026-09-26 23:15 431.78 435.50 -3.72
*

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
USGS Monitoring Location USGS:08061550

Lake Location