Lake Ray Hubbard: 91.7% full as of 2026-08-19
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 | 2026-08-19 | 91.7 | 433.70 | 403,038 | 403,038 | 439,559 | 19,911 |
| Yesterday | 2026-08-18 | 91.9 | 433.75 | 404,034 | 404,034 | 439,559 | 19,926 |
| 2 days ago | 2026-08-17 | 92.1 | 433.80 | 405,030 | 405,030 | 439,559 | 19,942 |
| 1 week ago | 2026-08-12 | 93.3 | 434.05 | 410,026 | 410,026 | 439,559 | 20,026 |
| 1 month ago | 2026-07-19 | 98.4 | 435.17 | 432,713 | 432,713 | 439,559 | 20,573 |
| 3 months ago | 2026-05-19 | 99.7 | 435.43 | 438,097 | 438,097 | 439,559 | 20,860 |
| 6 months ago | 2026-02-19 | 95.4 | 434.51 | 419,276 | 419,276 | 439,559 | 20,197 |
| 1 year ago | 2025-08-19 | 95.3 | 434.49 | 418,872 | 418,872 | 439,559 | 20,189 |
*
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 | 2026-08-19 22:45 | 433.67 | 435.50 | -1.83 |
| 1 hour prior | 2026-08-19 21:45 | 433.68 | 435.50 | -1.82 |
| 2 hours prior | 2026-08-19 20:45 | 433.68 | 435.50 | -1.82 |
| 6 hours prior | 2026-08-19 16:45 | 433.69 | 435.50 | -1.81 |
| 12 hours prior | 2026-08-19 10:45 | 433.70 | 435.50 | -1.80 |
| 24 hours prior | 2026-08-18 22:45 | 433.72 | 435.50 | -1.78 |
| 48 hours prior | 2026-08-17 22:45 | 433.78 | 435.50 | -1.72 |
*
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
