Eagle Mountain Reservoir: 80.1% full as of 2022-12-09

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)
Most recent 2022-12-09 80.1 644.75 144,042 144,042 179,880 7,948
1 day prior 2022-12-08 80.0 644.74 143,962 143,962 179,880 7,947
2 days prior 2022-12-07 79.9 644.71 143,724 143,724 179,880 7,943
1 week prior 2022-12-02 79.3 644.58 142,692 142,692 179,880 7,926
1 month prior 2022-11-09 78.2 644.33 140,715 140,715 179,880 7,895
3 months prior 2022-09-09 83.3 645.47 149,797 149,797 179,880 8,038
6 months prior 2022-06-09 92.4 647.49 166,292 166,292 179,880 8,298
1 year prior 2021-12-09 92.4 647.49 166,292 166,292 179,880 8,298
*

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 2022-12-10 03:00 644.73 649.10 -4.37 below flood pool
1 hour prior 2022-12-10 02:00 644.76 649.10 -4.34 below flood pool
2 hours prior 2022-12-10 01:00 644.75 649.10 -4.35 below flood pool
6 hours prior 2022-12-09 21:00 644.75 649.10 -4.35 below flood pool
12 hours prior 2022-12-09 15:00 644.75 649.10 -4.35 below flood pool
24 hours prior 2022-12-09 03:00 644.77 649.10 -4.33 below flood pool
48 hours prior 2022-12-08 03:00 644.73 649.10 -4.37 below flood pool
*

Data is provisional and subject to revision.

Additional Information

Impoundment date 1932-01-01
Gauge USGS:08045000
Vertical datum NGVD29
Dead pool elevation 599.90 ft above NGVD29
Service spillway crest elevation 637.00 ft above NGVD29
Service spillway crest elevation 649.10 ft above NGVD29
Top of flood gate elevation 659.00 ft above NGVD29
Emergency spillway crest elevation 676.00 ft above NGVD29
Flood pool elevation 668.00 ft above NGVD29
Maximum design elevation 680.23 ft above NGVD29
Top of dam elevation 682.00 ft above NGVD29
Conservation pool elevation 649.10 ft above NGVD29
Data download (CSV) period of record, last one year, last 30 days

Elevation-Area-Capacity Curves

1932-01-01 (source: USGS)
2003-09-30 (source: USGS)
2008-02-01 (source: TWDB) : GIS Data

Lake Location