Notes

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: 6.7% full as of 2022-11-28

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)
Today 2022-11-28 6.7 - n.a. - 17,140 17,140 254,823 - n.a. -
Yesterday 2022-11-27 6.7 985.49 17,148 17,148 254,823 967
2 days ago 2022-11-26 6.7 985.51 17,167 17,167 254,823 967
1 week ago 2022-11-21 6.7 985.50 17,158 17,158 254,823 967
1 month ago 2022-10-28 7.1 986.43 18,069 18,069 254,823 992
3 months ago 2022-08-28 8.3 989.33 21,056 21,056 254,823 1,070
6 months ago 2022-05-28 16.7 1,005.58 42,575 42,575 254,823 1,635
1 year ago 2021-11-28 26.8 1,018.67 68,330 68,330 254,823 2,315
*

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 2022-11-28 02:00 985.47 1,064.20 -78.73
1 hour prior 2022-11-28 01:00 985.47 1,064.20 -78.73
2 hours prior 2022-11-28 00:00 985.47 1,064.20 -78.73
6 hours prior 2022-11-27 20:00 985.48 1,064.20 -78.72
12 hours prior 2022-11-27 14:00 985.50 1,064.20 -78.70
24 hours prior 2022-11-27 02:00 985.50 1,064.20 -78.70
48 hours prior 2022-11-26 02:00 985.53 1,064.20 -78.67
*

Data is provisional and subject to revision.

Additional Information

Impoundment date 1913-01-01
Gauge USGS:08179500
Vertical datum NGVD29
Dead pool elevation 912.20 ft above NGVD29
Emergency spillway crest elevation 1,064.50 ft above NGVD29
Emergency spillway crest elevation 1,072.30 ft above NGVD29
Top of dam elevation 1,076.20 ft above NGVD29
Conservation pool elevation 1,064.20 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