Lake Corpus Christi: 98.4% full as of 2017-11-18

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)
Most recent 2017-11-18 98.4 93.79 252,205 251,927 256,062 19,624
1 day prior 2017-11-17 98.5 93.80 252,402 252,124 256,062 19,630
2 days prior 2017-11-16 98.9 93.86 253,581 253,303 256,062 19,665
1 week prior 2017-11-11 99.2 93.89 254,171 253,893 256,062 19,683
1 month prior 2017-10-18 100.0 94.42 264,686 256,062 256,062 - n.a. -
3 months prior 2017-08-18 71.7 90.09 183,806 183,528 256,062 17,151
6 months prior 2017-05-18 90.5 92.75 232,117 231,839 256,062 19,008
1 year prior 2016-11-18 92.6 93.02 237,270 236,992 256,062 19,168
*

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 2017-11-18 09:00 93.76 94.0 -0.2 below flood pool
1 hour prior 2017-11-18 08:00 93.80 94.0 -0.2 below flood pool
2 hours prior 2017-11-18 07:00 93.79 94.0 -0.2 below flood pool
6 hours prior 2017-11-18 03:00 93.81 94.0 -0.2 below flood pool
12 hours prior 2017-11-17 21:00 93.79 94.0 -0.2 below flood pool
24 hours prior 2017-11-17 09:00 93.82 94.0 -0.2 below flood pool
48 hours prior 2017-11-16 09:00 93.86 94.0 -0.1 below flood pool
*

Data is provisional and subject to revision.

Additional Information

Impoundment date 1958-01-01
Vertical datum NGVD29
Gauge USGS:08210500
Dead pool elevation 55.5 ft above NGVD29
Service spillway crest elevation 93.8 ft above NGVD29
Top of flood gate elevation 93.8 ft above NGVD29
Top of flood gate elevation 94.3 ft above NGVD29
Emergency spillway crest elevation 88.0 ft above NGVD29
Top of dam elevation 106.0 ft above NGVD29
Conservation pool elevation 94.0 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

Lake Location