Medina Lake: 6.3% full as of 2025-08-17

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 2025-08-17 6.3 984.31 16,027 16,027 254,823 932
Yesterday 2025-08-16 6.3 984.32 16,037 16,037 254,823 932
2 days ago 2025-08-15 6.3 984.34 16,055 16,055 254,823 933
1 week ago 2025-08-10 6.4 984.55 16,252 16,252 254,823 939
1 month ago 2025-07-17 5.9 983.12 14,942 14,942 254,823 892
3 months ago 2025-05-17 2.0 968.97 5,021 5,021 254,823 488
6 months ago 2025-02-17 2.4 971.25 6,242 6,242 254,823 576
1 year ago 2024-08-17 3.5 975.29 8,794 8,794 254,823 685
*

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 2025-08-17 10:00 984.31 1,064.20 -79.89
1 hour prior 2025-08-17 09:00 984.31 1,064.20 -79.89
2 hours prior 2025-08-17 08:00 984.30 1,064.20 -79.90
6 hours prior 2025-08-17 04:00 984.30 1,064.20 -79.90
12 hours prior 2025-08-16 22:00 984.32 1,064.20 -79.88
24 hours prior 2025-08-16 10:00 984.33 1,064.20 -79.87
48 hours prior 2025-08-15 10:00 984.35 1,064.20 -79.85
*

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