Medina Lake: 6.1% full as of 2025-08-31

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 2025-08-31 6.1 983.76 15,520 15,520 254,823 913
Yesterday 2025-08-30 6.1 983.81 15,566 15,566 254,823 915
2 days ago 2025-08-29 6.1 983.86 15,611 15,611 254,823 917
1 week ago 2025-08-24 6.2 984.08 15,814 15,814 254,823 924
1 month ago 2025-07-31 6.4 984.71 16,403 16,403 254,823 944
3 months ago 2025-05-31 2.1 969.64 5,357 5,357 254,823 516
6 months ago 2025-02-28 2.4 970.99 6,093 6,093 254,823 568
1 year ago 2024-08-31 3.3 974.70 8,394 8,394 254,823 670
*

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 2025-08-31 13:00 983.76 1,064.20 -80.44
1 hour prior 2025-08-31 12:00 983.76 1,064.20 -80.44
2 hours prior 2025-08-31 11:00 983.76 1,064.20 -80.44
6 hours prior 2025-08-31 07:00 983.76 1,064.20 -80.44
12 hours prior 2025-08-31 01:00 983.77 1,064.20 -80.43
24 hours prior 2025-08-30 13:00 983.81 1,064.20 -80.39
48 hours prior 2025-08-29 13:00 983.86 1,064.20 -80.34
*

Data is provisional and subject to revision.

Additional Information

Impoundment date 1913-01-01
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
Data Source USGS:08179500

Lake Location