Eagle Mountain Reservoir: 93.0% full as of 2019-08-21

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 2019-08-21 93.0 647.61 167,289 167,289 179,880 8,315
1 day prior 2019-08-20 93.2 647.65 167,622 167,622 179,880 8,321
2 days prior 2019-08-19 93.4 647.69 167,955 167,955 179,880 8,326
1 week prior 2019-08-14 94.5 647.93 169,958 169,958 179,880 8,363
1 month prior 2019-07-21 98.9 648.86 177,818 177,818 179,880 8,557
3 months prior 2019-05-21 99.7 649.04 179,363 179,363 179,880 8,639
6 months prior 2019-02-21 100.0 649.12 180,053 179,880 179,880 - n.a. -
1 year prior 2018-08-21 88.0 646.52 158,306 158,306 179,880 8,171
*

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 2019-08-21 22:00 647.59 649.10 -1.51 below flood pool
1 hour prior 2019-08-21 21:00 647.59 649.10 -1.51 below flood pool
2 hours prior 2019-08-21 20:00 647.60 649.10 -1.50 below flood pool
6 hours prior 2019-08-21 16:00 647.61 649.10 -1.49 below flood pool
12 hours prior 2019-08-21 10:00 647.62 649.10 -1.48 below flood pool
24 hours prior 2019-08-20 22:00 647.64 649.10 -1.46 below flood pool
48 hours prior 2019-08-19 22:00 647.67 649.10 -1.43 below flood pool
*

Data is provisional and subject to revision.

Additional Information

Impoundment date 1932-01-01
Vertical datum NGVD29
Gauge USGS:08045000
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