Lake Granbury: 88.3% full as of 2026-10-22
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 | 2026-10-22 | 88.3 | 690.70 | 118,243 | 117,334 | 132,949 | 7,443 |
| Yesterday | 2026-10-21 | 88.3 | 690.70 | 118,243 | 117,334 | 132,949 | 7,443 |
| 2 days ago | 2026-10-20 | 88.1 | 690.68 | 118,095 | 117,186 | 132,949 | 7,435 |
| 1 week ago | 2026-10-15 | 86.9 | 690.45 | 116,394 | 115,485 | 132,949 | 7,351 |
| 1 month ago | 2026-09-22 | 85.5 | 690.20 | 114,567 | 113,658 | 132,949 | 7,260 |
| 3 months ago | 2026-07-22 | 95.4 | 691.94 | 127,753 | 126,844 | 132,949 | 7,895 |
| 6 months ago | 2026-04-22 | 99.8 | 692.67 | 133,613 | 132,704 | 132,949 | 8,161 |
| 1 year ago | 2025-10-22 | 93.2 | 691.57 | 124,857 | 123,948 | 132,949 | 7,760 |
*
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 | 2026-10-22 11:15 | 690.69 | 692.70 | -2.01 |
| 1 hour prior | 2026-10-22 10:15 | 690.69 | 692.70 | -2.01 |
| 2 hours prior | 2026-10-22 09:15 | 690.70 | 692.70 | -2.00 |
| 6 hours prior | 2026-10-22 05:15 | 690.70 | 692.70 | -2.00 |
| 12 hours prior | 2026-10-21 23:15 | 690.70 | 692.70 | -2.00 |
| 24 hours prior | 2026-10-21 11:15 | 690.69 | 692.70 | -2.01 |
| 48 hours prior | 2026-10-20 11:15 | 690.68 | 692.70 | -2.02 |
*
Data is provisional and subject to revision.
Additional Information
| Impoundment date | 1969-01-01 |
| Vertical datum | NGVD29 -1.11 |
| Dead pool elevation | 640.00 ft above NGVD29 -1.11 |
| Service spillway crest elevation | 658.00 ft above NGVD29 -1.11 |
| Emergency spillway crest elevation | 693.00 ft above NGVD29 -1.11 |
| Top of dam elevation | 706.50 ft above NGVD29 -1.11 |
| Conservation pool elevation | 692.70 ft above NGVD29 -1.11 |
| Data download (CSV) | period of record, last one year, last 30 days |
Elevation-Area-Capacity Curves
1969-01-01 (source: TWDB)
1993-10-01 (source: TWDB)
: GIS Data
2003-07-01 (source: TWDB)
: GIS Data
2015-06-01 (source: TWDB)
: GIS Data
|
|
| Data Source | USGS:08090900 |
| USGS Monitoring Location | USGS:08090900 |
Lake Location
