Medina Lake: 9.0% full as of 2026-07-07

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)
Today 2026-07-07 9.0 990.98 22,858 22,858 254,823 1,115
Yesterday 2026-07-06 9.0 991.00 22,880 22,880 254,823 1,115
2 days ago 2026-07-05 9.0 991.02 22,903 22,903 254,823 1,116
1 week ago 2026-06-30 9.0 991.00 22,880 22,880 254,823 1,115
1 month ago 2026-06-07 3.9 977.05 10,037 10,037 254,823 728
3 months ago 2026-04-07 3.9 976.87 9,906 9,906 254,823 724
6 months ago 2026-01-07 4.6 979.43 11,847 11,847 254,823 791
1 year ago 2025-07-07 4.8 979.89 12,213 12,213 254,823 802
*

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 2026-07-07 07:00 990.98 1,064.20 -73.22
1 hour prior 2026-07-07 06:00 990.98 1,064.20 -73.22
2 hours prior 2026-07-07 05:00 990.97 1,064.20 -73.23
6 hours prior 2026-07-07 01:00 990.98 1,064.20 -73.22
12 hours prior 2026-07-06 19:00 990.99 1,064.20 -73.21
24 hours prior 2026-07-06 07:00 991.00 1,064.20 -73.20
48 hours prior 2026-07-05 07:00 991.00 1,064.20 -73.20
*

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
USGS Monitoring Location USGS:08179500

Lake Location