Lake Ray Hubbard: 86.2% full as of 2026-09-13
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 | 2026-09-13 | 86.2 | 432.47 | 378,776 | 378,776 | 439,559 | 19,544 |
| Yesterday | 2026-09-12 | 86.3 | 432.51 | 379,558 | 379,558 | 439,559 | 19,555 |
| 2 days ago | 2026-09-11 | 86.6 | 432.56 | 380,536 | 380,536 | 439,559 | 19,570 |
| 1 week ago | 2026-09-06 | 87.7 | 432.81 | 385,437 | 385,437 | 439,559 | 19,642 |
| 1 month ago | 2026-08-13 | 92.8 | 433.94 | 407,825 | 407,825 | 439,559 | 19,988 |
| 3 months ago | 2026-06-13 | 100.0 | 435.51 | 439,769 | 439,559 | 439,559 | 20,960 |
| 6 months ago | 2026-03-13 | 100.0 | 435.64 | 442,506 | 439,559 | 439,559 | 21,126 |
| 1 year ago | 2025-09-13 | 96.2 | 434.69 | 422,919 | 422,919 | 439,559 | 20,273 |
*
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 | 2026-09-13 19:15 | 432.44 | 435.50 | -3.06 |
| 1 hour prior | 2026-09-13 18:15 | 432.44 | 435.50 | -3.06 |
| 2 hours prior | 2026-09-13 17:15 | 432.45 | 435.50 | -3.05 |
| 6 hours prior | 2026-09-13 13:15 | 432.47 | 435.50 | -3.03 |
| 12 hours prior | 2026-09-13 07:15 | 432.47 | 435.50 | -3.03 |
| 24 hours prior | 2026-09-12 19:15 | 432.49 | 435.50 | -3.01 |
| 48 hours prior | 2026-09-11 19:15 | 432.51 | 435.50 | -2.99 |
*
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
