Lake Ray Hubbard: 95.8% full as of 2026-08-02
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 | 2026-08-02 | 95.8 | 434.59 | 420,894 | 420,894 | 439,559 | 20,230 |
| Yesterday | 2026-08-01 | 95.9 | 434.63 | 421,703 | 421,703 | 439,559 | 20,247 |
| 2 days ago | 2026-07-31 | 96.0 | 434.65 | 422,109 | 422,109 | 439,559 | 20,256 |
| 1 week ago | 2026-07-26 | 97.1 | 434.88 | 426,779 | 426,779 | 439,559 | 20,366 |
| 1 month ago | 2026-07-02 | 99.6 | 435.42 | 437,888 | 437,888 | 439,559 | 20,847 |
| 3 months ago | 2026-05-02 | 100.0 | 435.53 | 440,189 | 439,559 | 439,559 | 20,985 |
| 6 months ago | 2026-02-02 | 92.2 | 433.81 | 405,229 | 405,229 | 439,559 | 19,945 |
| 1 year ago | 2025-08-02 | 97.0 | 434.87 | 426,575 | 426,575 | 439,559 | 20,361 |
*
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 | 2026-08-02 16:15 | 434.56 | 435.50 | -0.94 |
| 1 hour prior | 2026-08-02 15:15 | 434.56 | 435.50 | -0.94 |
| 2 hours prior | 2026-08-02 14:15 | 434.58 | 435.50 | -0.92 |
| 6 hours prior | 2026-08-02 10:15 | 434.58 | 435.50 | -0.92 |
| 12 hours prior | 2026-08-02 04:15 | 434.60 | 435.50 | -0.90 |
| 24 hours prior | 2026-08-01 16:15 | 434.63 | 435.50 | -0.87 |
| 48 hours prior | 2026-07-31 16:15 | 434.64 | 435.50 | -0.86 |
*
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
