Lake Corpus Christi: 25.1% full as of 2025-01-20

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 2025-01-20 25.1 81.11 64,528 64,250 256,062 9,157
Yesterday 2025-01-19 25.2 81.14 64,803 64,525 256,062 9,186
2 days ago 2025-01-18 25.2 81.15 64,895 64,617 256,062 9,196
1 week ago 2025-01-13 25.5 81.22 65,541 65,263 256,062 9,262
1 month ago 2024-12-20 26.8 81.58 68,937 68,659 256,062 9,590
3 months ago 2024-10-20 32.5 83.01 83,567 83,289 256,062 10,906
6 months ago 2024-07-20 39.9 84.63 102,497 102,219 256,062 12,484
1 year ago 2024-01-20 45.6 85.75 117,076 116,798 256,062 13,543
*

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 2025-01-20 15:00 81.14 94.00 -12.86
1 hour prior 2025-01-20 14:00 - n.a. - - n.a. - - n.a. -
2 hours prior 2025-01-20 13:00 81.12 94.00 -12.88
6 hours prior 2025-01-20 09:00 81.12 94.00 -12.88
12 hours prior 2025-01-20 03:00 81.10 94.00 -12.90
24 hours prior 2025-01-19 15:00 81.15 94.00 -12.85
48 hours prior 2025-01-18 15:00 81.18 94.00 -12.82
*

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 flood gate elevation 93.80 ft above NGVD29
Top of flood 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