Grapevine Lake: 93.5% full as of 2026-10-07
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 | 2026-10-07 | 93.5 | 533.34 | 152,434 | 152,434 | 163,064 | 6,234 |
| Yesterday | 2026-10-06 | 93.5 | 533.34 | 152,434 | 152,434 | 163,064 | 6,234 |
| 2 days ago | 2026-10-05 | 93.4 | 533.31 | 152,247 | 152,247 | 163,064 | 6,229 |
| 1 week ago | 2026-09-30 | 89.2 | 532.20 | 145,438 | 145,438 | 163,064 | 6,045 |
| 1 month ago | 2026-09-07 | 93.2 | 533.26 | 151,936 | 151,936 | 163,064 | 6,220 |
| 3 months ago | 2026-07-07 | 100.0 | 535.31 | 165,120 | 163,064 | 163,064 | - n.a. - |
| 6 months ago | 2026-04-07 | 100.0 | 537.55 | 180,683 | 163,064 | 163,064 | - n.a. - |
| 1 year ago | 2025-10-07 | 96.2 | 534.05 | 156,908 | 156,908 | 163,064 | 6,371 |
*
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 | 2026-10-07 16:45 | 533.30 | 535.00 | -1.70 |
| 1 hour prior | 2026-10-07 15:45 | 533.26 | 535.00 | -1.74 |
| 2 hours prior | 2026-10-07 14:45 | 533.24 | 535.00 | -1.76 |
| 6 hours prior | 2026-10-07 10:45 | 533.34 | 535.00 | -1.66 |
| 12 hours prior | 2026-10-07 04:45 | 533.33 | 535.00 | -1.67 |
| 24 hours prior | 2026-10-06 16:45 | 533.49 | 535.00 | -1.51 |
| 48 hours prior | 2026-10-05 16:45 | 533.28 | 535.00 | -1.72 |
*
Data is provisional and subject to revision.
Additional Information
| Impoundment date | 1952-01-01 |
| Vertical datum | NGVD29 |
| Dead pool elevation | 475.00 ft above NGVD29 |
| Emergency spillway crest elevation | 560.00 ft above NGVD29 |
| Flood pool elevation | 560.00 ft above NGVD29 |
| Maximum design elevation | 581.90 ft above NGVD29 |
| Top of dam elevation | 588.00 ft above NGVD29 |
| Conservation pool elevation | 535.00 ft above NGVD29 |
| Data download (CSV) | period of record, last one year, last 30 days |
Elevation-Area-Capacity Curves
2002-05-01 (source: TWDB)
: GIS Data
2011-09-01 (source: TWDB)
: GIS Data
|
|
| Data Source | USGS:08054500 |
| USGS Monitoring Location | USGS:08054500 |
Lake Location
