Lake Corpus Christi: 22.7% full as of 2025-03-09

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 2025-03-09 22.7 80.42 58,444 58,166 256,062 8,476
Yesterday 2025-03-08 22.6 80.40 58,275 57,997 256,062 8,454
2 days ago 2025-03-07 22.6 80.38 58,106 57,828 256,062 8,433
1 week ago 2025-03-02 22.9 80.48 58,954 58,676 256,062 8,536
1 month ago 2025-02-09 24.3 80.89 62,537 62,259 256,062 8,941
3 months ago 2024-12-09 27.5 81.76 70,677 70,399 256,062 9,748
6 months ago 2024-09-09 36.2 83.85 93,056 92,778 256,062 11,710
1 year ago 2024-03-09 46.1 85.84 118,298 118,020 256,062 13,626
*

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 2025-03-09 09:00 80.33 94.00 -13.67
1 hour prior 2025-03-09 08:00 80.29 94.00 -13.71
2 hours prior 2025-03-09 07:00 80.36 94.00 -13.64
6 hours prior 2025-03-09 03:00 80.41 94.00 -13.59
12 hours prior 2025-03-08 21:00 80.55 94.00 -13.45
24 hours prior 2025-03-08 09:00 - n.a. - - n.a. - - n.a. -
48 hours prior 2025-03-07 09:00 - n.a. - - n.a. - - n.a. -
*

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