Lake Ray Hubbard: 87.3% full as of 2026-09-08
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 | 2026-09-08 | 87.3 | 432.73 | 383,867 | 383,867 | 439,559 | 19,619 |
| 1 day prior | 2026-09-07 | 87.5 | 432.76 | 384,456 | 384,456 | 439,559 | 19,628 |
| 2 days prior | 2026-09-06 | 87.7 | 432.81 | 385,437 | 385,437 | 439,559 | 19,642 |
| 1 week prior | 2026-09-01 | 88.7 | 433.04 | 389,963 | 389,963 | 439,559 | 19,710 |
| 1 month prior | 2026-08-08 | 94.1 | 434.24 | 413,838 | 413,838 | 439,559 | 20,094 |
| 3 months prior | 2026-06-08 | 100.0 | 435.88 | 447,614 | 439,559 | 439,559 | 21,453 |
| 6 months prior | 2026-03-08 | 98.3 | 435.14 | 432,096 | 432,096 | 439,559 | 20,546 |
| 1 year prior | 2025-09-08 | 96.9 | 434.84 | 425,965 | 425,965 | 439,559 | 20,345 |
*
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 | 2026-09-08 23:15 | 432.67 | 435.50 | -2.83 |
| 1 hour prior | 2026-09-08 22:15 | 432.68 | 435.50 | -2.82 |
| 2 hours prior | 2026-09-08 21:15 | 432.69 | 435.50 | -2.81 |
| 6 hours prior | 2026-09-08 17:15 | 432.70 | 435.50 | -2.80 |
| 12 hours prior | 2026-09-08 11:15 | 432.74 | 435.50 | -2.76 |
| 24 hours prior | 2026-09-07 23:15 | 432.74 | 435.50 | -2.76 |
| 48 hours prior | 2026-09-06 23:15 | 432.79 | 435.50 | -2.71 |
*
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
