Medina Lake: 20.6% full as of 2026-07-16

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)
Most recent 2026-07-16 20.6 1,011.13 52,384 52,384 254,823 1,906
1 day prior 2026-07-15 12.9 998.99 32,759 32,759 254,823 1,362
2 days prior 2026-07-14 9.3 991.78 23,759 23,759 254,823 1,138
1 week prior 2026-07-09 9.0 991.07 22,959 22,959 254,823 1,117
1 month prior 2026-06-16 5.3 981.48 13,521 13,521 254,823 843
3 months prior 2026-04-16 3.8 976.69 9,776 9,776 254,823 719
6 months prior 2026-01-16 4.6 979.13 11,611 11,611 254,823 784
1 year prior 2025-07-16 5.6 982.29 14,213 14,213 254,823 867
*

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 2026-07-16 23:00 1,012.87 1,064.20 -51.33
1 hour prior 2026-07-16 22:00 1,012.74 1,064.20 -51.46
2 hours prior 2026-07-16 21:00 1,012.62 1,064.20 -51.58
6 hours prior 2026-07-16 17:00 1,012.13 1,064.20 -52.07
12 hours prior 2026-07-16 11:00 1,011.46 1,064.20 -52.74
24 hours prior 2026-07-15 23:00 1,009.64 1,064.20 -54.56
48 hours prior 2026-07-14 23:00 993.43 1,064.20 -70.77
*

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