Recent changes

2013-06-19: The vertical datum for the 1995 TWDB rating curve for Lake Medina has been adjusted from NGVD29-7.81ft to NGVD29-7.80ft.

Medina Lake: 70.0% full as of 2017-11-18

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 2017-11-18 70.0 1,050.32 178,429 178,429 254,823 4,935
1 day prior 2017-11-17 70.1 1,050.34 178,528 178,528 254,823 4,936
2 days prior 2017-11-16 70.2 1,050.39 178,775 178,775 254,823 4,940
1 week prior 2017-11-11 70.5 1,050.57 179,666 179,666 254,823 4,953
1 month prior 2017-10-18 73.0 1,051.85 186,066 186,066 254,823 5,048
3 months prior 2017-08-18 79.4 1,054.98 202,314 202,314 254,823 5,320
6 months prior 2017-05-18 90.0 1,059.90 229,444 229,444 254,823 5,725
1 year prior 2016-11-18 92.9 1,061.14 236,612 236,612 254,823 5,829
*

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 2017-11-18 09:00 1,050.31 1,064.2 -13.9 below flood pool
1 hour prior 2017-11-18 08:00 1,050.31 1,064.2 -13.9 below flood pool
2 hours prior 2017-11-18 07:00 1,050.31 1,064.2 -13.9 below flood pool
6 hours prior 2017-11-18 03:00 1,050.32 1,064.2 -13.9 below flood pool
12 hours prior 2017-11-17 21:00 1,050.32 1,064.2 -13.9 below flood pool
24 hours prior 2017-11-17 09:00 1,050.35 1,064.2 -13.9 below flood pool
48 hours prior 2017-11-16 09:00 1,050.40 1,064.2 -13.8 below flood pool
*

Data is provisional and subject to revision.

Additional Information

Impoundment date 1913-01-01
Vertical datum NGVD29
Gauge USGS:08179500
Dead pool elevation 912.2 ft above NGVD29
Emergency spillway crest elevation 1,064.5 ft above NGVD29
Emergency spillway crest elevation 1,072.3 ft above NGVD29
Top of dam elevation 1,076.2 ft above NGVD29
Conservation pool elevation 1,064.2 ft above NGVD29
Data download (CSV) period of record, last one year, last 30 days

Elevation-Area-Capacity Curves

1913-01-01 (source: usgs)
1995-07-01 (source: twdb) : GIS Data

Lake Location