recent changes

2013-02-12: The rating curve for this reservoir has been updated and replaced with data from the Texas Water Development Board's Report 126.

Mountain Creek Lake is 100.0% full as of 2016-07-30

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, while 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.

Date Percent Full Mean Water Level
(ft)
Reservoir Storage
(acre-ft)
Conservation Storage
(acre-ft)
Conservation Capacity
(acre-ft)
Surface Area
(acres)
Today 2016-07-30 100.0 457.67 24,632 22,850 22,850 2,882
Yesterday 2016-07-29 100.0 457.68 24,664 22,850 22,850 2,886
2 days ago 2016-07-28 100.0 457.68 24,664 22,850 22,850 2,886
1 week ago 2016-07-23 100.0 457.75 24,890 22,850 22,850 2,917
1 month ago 2016-06-30 100.0 457.41 23,852 22,850 22,850 2,796
3 months ago 2016-04-30 100.0 457.65 24,569 22,850 22,850 2,874
6 months ago 2016-01-30 100.0 457.37 23,744 22,850 22,850 2,785
1 year ago 2015-07-30 100.0 457.83 25,154 22,850 22,850 2,956
*

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 2016-07-30 17:45 457.66 457.0 0.7 into flood pool
1 hour prior 2016-07-30 16:45 457.62 457.0 0.6 into flood pool
2 hours prior 2016-07-30 15:45 457.68 457.0 0.7 into flood pool
6 hours prior 2016-07-30 11:45 457.68 457.0 0.7 into flood pool
12 hours prior 2016-07-30 05:45 457.68 457.0 0.7 into flood pool
24 hours prior 2016-07-29 17:45 457.67 457.0 0.7 into flood pool
48 hours prior 2016-07-28 17:45 457.67 457.0 0.7 into flood pool
*

Data is provisional and subject to revision.

Additional Information

Impoundment date 1936-01-01
Vertical datum NGVD29
Gauge USGS:08050050
Service spillway crest elevation 431 ft above NGVD29
Conservation pool elevation 457.0 ft above NGVD29
Top of flood gate elevation 458 ft above NGVD29
Emergency spillway crest elevation 458 ft above NGVD29
Top of dam elevation 467 ft above NGVD29
Data download (CSV) period of record, last one year, last 30 days

Elevation-Area-Capacity Curves

1974-10-01 (source: twdb)