Lake Corpus Christi: 83.7% full as of 2026-10-07

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 2026-10-07 83.7 91.81 214,511 214,233 256,062 18,452
Yesterday 2026-10-06 83.9 91.84 215,064 214,786 256,062 18,469
2 days ago 2026-10-05 84.3 91.90 216,174 215,896 256,062 18,505
1 week ago 2026-09-30 81.9 91.56 209,916 209,638 256,062 18,303
1 month ago 2026-09-07 87.7 92.37 224,936 224,658 256,062 18,783
3 months ago 2026-07-07 34.5 83.46 88,566 88,288 256,062 11,313
6 months ago 2026-04-07 8.5 74.82 22,068 21,790 256,062 4,676
1 year ago 2025-10-07 14.6 77.62 37,668 37,390 256,062 6,427
*

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 2026-10-07 04:00 91.81 94.00 -2.19
1 hour prior 2026-10-07 03:00 91.81 94.00 -2.19
2 hours prior 2026-10-07 02:00 91.81 94.00 -2.19
6 hours prior 2026-10-06 22:00 91.80 94.00 -2.20
12 hours prior 2026-10-06 16:00 91.83 94.00 -2.17
24 hours prior 2026-10-06 04:00 91.86 94.00 -2.14
48 hours prior 2026-10-05 04:00 91.93 94.00 -2.07
*

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