Notes

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: 100.0% full as of 2022-12-07

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 2022-12-07 100.0 457.70 24,727 22,850 22,850 2,894
1 day prior 2022-12-06 100.0 457.67 24,632 22,850 22,850 2,882
2 days prior 2022-12-05 100.0 457.64 24,537 22,850 22,850 2,871
1 week prior 2022-11-30 100.0 457.63 24,506 22,850 22,850 2,867
1 month prior 2022-11-07 100.0 457.67 24,632 22,850 22,850 2,882
3 months prior 2022-09-07 100.0 457.73 24,825 22,850 22,850 2,908
6 months prior 2022-06-07 100.0 457.64 24,537 22,850 22,850 2,871
1 year prior 2021-12-07 100.0 457.68 24,664 22,850 22,850 2,886
*

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 2022-12-08 03:45 457.70 457.00 0.70
1 hour prior 2022-12-08 02:45 457.71 457.00 0.71
2 hours prior 2022-12-08 01:45 457.71 457.00 0.71
6 hours prior 2022-12-07 21:45 457.71 457.00 0.71
12 hours prior 2022-12-07 15:45 457.70 457.00 0.70
24 hours prior 2022-12-07 03:45 457.69 457.00 0.69
48 hours prior 2022-12-06 03:45 457.62 457.00 0.62
*

Data is provisional and subject to revision.

Additional Information

Impoundment date 1936-01-01
Gauge USGS:08050050
Vertical datum NGVD29
Service spillway crest elevation 431.00 ft above NGVD29
Top of flood gate elevation 458.00 ft above NGVD29
Emergency spillway crest elevation 458.00 ft above NGVD29
Top of dam elevation 467.00 ft above NGVD29
Conservation pool elevation 457.00 ft above NGVD29
Data download (CSV) period of record, last one year, last 30 days

Elevation-Area-Capacity Curves

1974-10-01 (source: TWDB)

Lake Location