Fort Phantom Hill Reservoir: 66.5% full as of 2026-11-06
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 | 2026-11-06 | 66.5 | 1,629.01 | 46,572 | 46,566 | 70,030 | 2,970 |
| Yesterday | 2026-11-05 | 66.6 | 1,629.03 | 46,631 | 46,625 | 70,030 | 2,972 |
| 2 days ago | 2026-11-04 | 66.7 | 1,629.06 | 46,721 | 46,715 | 70,030 | 2,975 |
| 1 week ago | 2026-10-30 | 66.6 | 1,629.04 | 46,661 | 46,655 | 70,030 | 2,973 |
| 1 month ago | 2026-10-06 | 67.3 | 1,629.21 | 47,168 | 47,162 | 70,030 | 2,990 |
| 3 months ago | 2026-08-06 | 73.9 | 1,630.70 | 51,738 | 51,732 | 70,030 | 3,146 |
| 6 months ago | 2026-05-06 | 73.6 | 1,630.63 | 51,518 | 51,512 | 70,030 | 3,139 |
| 1 year ago | 2025-11-06 | 74.1 | 1,630.76 | 51,927 | 51,921 | 70,030 | 3,152 |
*
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 | 2026-11-06 10:30 | 1,629.00 | 1,635.90 | -6.90 |
| 1 hour prior | 2026-11-06 09:30 | 1,629.00 | 1,635.90 | -6.90 |
| 2 hours prior | 2026-11-06 08:30 | 1,629.00 | 1,635.90 | -6.90 |
| 6 hours prior | 2026-11-06 04:30 | 1,629.01 | 1,635.90 | -6.89 |
| 12 hours prior | 2026-11-05 22:30 | 1,629.01 | 1,635.90 | -6.89 |
| 24 hours prior | 2026-11-05 10:30 | 1,629.05 | 1,635.90 | -6.85 |
| 48 hours prior | 2026-11-04 10:30 | 1,629.06 | 1,635.90 | -6.84 |
*
Data is provisional and subject to revision.
Additional Information
| Impoundment date | 1938-01-01 |
| Vertical datum | NGVD29 |
| Dead pool elevation | 1,582.40 ft above NGVD29 |
| Service spillway crest elevation | 1,635.90 ft above NGVD29 |
| Emergency spillway crest elevation | 1,642.00 ft above NGVD29 |
| Top of dam elevation | 1,650.00 ft above NGVD29 |
| Conservation pool elevation | 1,635.90 ft above NGVD29 |
| Data download (CSV) | period of record, last one year, last 30 days |
Elevation-Area-Capacity Curves
1993-11-01 (source: TWDB)
: GIS Data
|
|
| Data Source | USGS:08083500 |
| USGS Monitoring Location | USGS:08083500 |
Lake Location
