Lake Corpus Christi: 83.2% full as of 2026-10-09

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 2026-10-09 83.2 91.74 213,221 212,943 256,062 18,410
Yesterday 2026-10-08 83.3 91.76 213,589 213,311 256,062 18,422
2 days ago 2026-10-07 83.6 91.80 214,326 214,048 256,062 18,446
1 week ago 2026-10-02 84.5 91.93 216,729 216,451 256,062 18,523
1 month ago 2026-09-09 87.3 92.31 223,810 223,532 256,062 18,748
3 months ago 2026-07-09 34.2 83.40 87,889 87,611 256,062 11,258
6 months ago 2026-04-09 8.5 74.81 22,021 21,743 256,062 4,667
1 year ago 2025-10-09 14.5 77.57 37,348 37,070 256,062 6,396
*

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 2026-10-09 00:00 91.74 94.00 -2.26
1 hour prior 2026-10-08 23:00 91.74 94.00 -2.26
2 hours prior 2026-10-08 22:00 91.73 94.00 -2.27
6 hours prior 2026-10-08 18:00 91.75 94.00 -2.25
12 hours prior 2026-10-08 12:00 91.78 94.00 -2.22
24 hours prior 2026-10-08 00:00 91.77 94.00 -2.23
48 hours prior 2026-10-07 00:00 91.81 94.00 -2.19
*

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

1956-07-01 (source: TWDB)
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
USGS Monitoring Location USGS:08210500

Lake Location