Eagle Mountain Reservoir: 77.6% full as of 2024-12-20

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 2024-12-20 77.6 644.24 143,703 143,703 185,087 7,889
1 day prior 2024-12-19 77.6 644.24 143,703 143,703 185,087 7,889
2 days prior 2024-12-18 77.7 644.26 143,861 143,861 185,087 7,893
1 week prior 2024-12-13 77.4 644.19 143,309 143,309 185,087 7,880
1 month prior 2024-11-20 75.6 643.75 139,859 139,859 185,087 7,796
3 months prior 2024-09-20 77.4 644.19 143,309 143,309 185,087 7,880
6 months prior 2024-06-20 100.0 649.15 185,550 185,087 185,087 9,263
1 year prior 2023-12-20 68.2 641.96 126,271 126,271 185,087 7,377
*

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 2024-12-21 05:00 644.23 649.10 -4.87 below flood pool
1 hour prior 2024-12-21 04:00 644.24 649.10 -4.86 below flood pool
2 hours prior 2024-12-21 03:00 644.22 649.10 -4.88 below flood pool
6 hours prior 2024-12-20 23:00 644.23 649.10 -4.87 below flood pool
12 hours prior 2024-12-20 17:00 644.24 649.10 -4.86 below flood pool
24 hours prior 2024-12-20 05:00 644.26 649.10 -4.84 below flood pool
48 hours prior 2024-12-19 05:00 644.23 649.10 -4.87 below flood pool
*

Data is provisional and subject to revision.

Additional Information

Impoundment date 1932-01-01
Vertical datum
Start date: 2016-10-01 		NAVD88
Vertical datum
End date: 2016-10-01 		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
2018-10-01 (source: TWDB) : GIS Data
Data Source USGS:08045000

Lake Location