Medina Lake: 29.0% full as of 2026-07-27

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 2026-07-27 29.0 1,020.98 73,859 73,859 254,823 2,475
Yesterday 2026-07-26 28.9 1,020.89 73,636 73,636 254,823 2,468
2 days ago 2026-07-25 28.7 1,020.70 73,169 73,169 254,823 2,455
1 week ago 2026-07-20 27.2 1,019.09 69,308 69,308 254,823 2,341
1 month ago 2026-06-27 9.0 990.97 22,847 22,847 254,823 1,115
3 months ago 2026-04-27 3.9 976.81 9,863 9,863 254,823 722
6 months ago 2026-01-27 4.5 978.85 11,392 11,392 254,823 777
1 year ago 2025-07-27 6.4 984.73 16,422 16,422 254,823 945
*

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 2026-07-27 09:00 1,021.03 1,064.20 -43.17
1 hour prior 2026-07-27 08:00 1,021.02 1,064.20 -43.18
2 hours prior 2026-07-27 07:00 1,021.01 1,064.20 -43.19
6 hours prior 2026-07-27 03:00 1,020.98 1,064.20 -43.22
12 hours prior 2026-07-26 21:00 1,020.96 1,064.20 -43.24
24 hours prior 2026-07-26 09:00 1,020.88 1,064.20 -43.32
48 hours prior 2026-07-25 09:00 1,020.68 1,064.20 -43.52
*

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