Fort Phantom Hill Reservoir: 69.2% full as of 2023-10-04

The elevation-storage rating curve used to produce the storage hydrograph is made of two segments: (1) the segment up to the conservation pool top (below the red line) is based on measured data, and (2) the segment in the flood pool (above the red line) is an extrapolation from the first segment and shouldn't be relied upon for flood storage information.

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 2023-10-04 69.2 1,629.65 48,493 48,487 70,030 3,033
Yesterday 2023-10-03 69.3 1,629.66 48,523 48,517 70,030 3,034
2 days ago 2023-10-02 69.4 1,629.69 48,615 48,609 70,030 3,037
1 week ago 2023-09-27 70.1 1,629.84 49,071 49,065 70,030 3,052
1 month ago 2023-09-04 70.5 1,629.93 49,347 49,341 70,030 3,063
3 months ago 2023-07-04 79.3 1,631.88 55,532 55,526 70,030 3,288
6 months ago 2023-04-04 65.3 1,628.73 45,744 45,738 70,030 2,943
1 year ago 2022-10-04 66.9 1,629.11 46,870 46,864 70,030 2,980
*

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 2023-10-04 17:30 1,629.66 1,635.90 -6.24
1 hour prior 2023-10-04 16:30 1,629.66 1,635.90 -6.24
2 hours prior 2023-10-04 15:30 1,629.66 1,635.90 -6.24
6 hours prior 2023-10-04 11:30 1,629.65 1,635.90 -6.25
12 hours prior 2023-10-04 05:30 1,629.65 1,635.90 -6.25
24 hours prior 2023-10-03 17:30 1,629.66 1,635.90 -6.24
48 hours prior 2023-10-02 17:30 1,629.68 1,635.90 -6.22
*

Data is provisional and subject to revision.

Additional Information

Impoundment date 1938-01-01
Gauge USGS:08083500
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

Lake Location