Lake Corpus Christi: 10.0% full as of 2026-03-03

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 2026-03-03 10.0 75.61 25,989 25,711 256,062 5,206
Yesterday 2026-03-02 10.1 75.62 26,041 25,763 256,062 5,212
2 days ago 2026-03-01 10.1 75.63 26,093 25,815 256,062 5,217
1 week ago 2026-02-24 10.2 75.71 26,512 26,234 256,062 5,262
1 month ago 2026-02-03 11.0 76.06 28,390 28,112 256,062 5,472
3 months ago 2025-12-03 12.6 76.77 32,424 32,146 256,062 5,902
6 months ago 2025-09-03 17.0 78.53 43,823 43,545 256,062 7,099
1 year ago 2025-03-03 22.7 80.43 58,529 58,251 256,062 8,486
*

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 2026-03-03 14:00 75.55 94.00 -18.45
1 hour prior 2026-03-03 13:00 75.56 94.00 -18.44
2 hours prior 2026-03-03 12:00 75.57 94.00 -18.43
6 hours prior 2026-03-03 08:00 75.62 94.00 -18.38
12 hours prior 2026-03-03 02:00 75.60 94.00 -18.40
24 hours prior 2026-03-02 14:00 75.62 94.00 -18.38
48 hours prior 2026-03-01 14:00 75.62 94.00 -18.38
*

Data is provisional and subject to revision.

Additional Information

Impoundment date 1958-01-01
Vertical datum NGVD29
Dead pool elevation 55.50 ft above NGVD29
Service spillway crest elevation 93.80 ft above NGVD29
Top of gate elevation 94.30 ft above NGVD29
Emergency spillway crest elevation 88.00 ft above NGVD29
Top of dam elevation 106.00 ft above NGVD29
Conservation pool elevation 94.00 ft above NGVD29
Data download (CSV) period of record, last one year, last 30 days

Elevation-Area-Capacity Curves

1958-01-01 (source: USGS)
2002-01-01 (source: TWDB) : GIS Data
2012-05-01 (source: TWDB) : GIS Data
2016-02-01 (source: TWDB) : GIS Data
Data Source USGS:08210500

Lake Location