Lake Corpus Christi: 90.8% full as of 2026-08-23
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 | 2026-08-23 | 90.8 | 92.79 | 232,877 | 232,599 | 256,062 | 19,032 |
| 1 day prior | 2026-08-22 | 91.0 | 92.81 | 233,258 | 232,980 | 256,062 | 19,044 |
| 2 days prior | 2026-08-21 | 91.1 | 92.82 | 233,449 | 233,171 | 256,062 | 19,050 |
| 1 week prior | 2026-08-16 | 91.7 | 92.91 | 235,166 | 234,888 | 256,062 | 19,103 |
| 1 month prior | 2026-07-23 | 32.5 | 83.01 | 83,567 | 83,289 | 256,062 | 10,906 |
| 3 months prior | 2026-05-23 | 12.7 | 76.85 | 32,898 | 32,620 | 256,062 | 5,957 |
| 6 months prior | 2026-02-23 | 10.4 | 75.78 | 26,882 | 26,604 | 256,062 | 5,303 |
| 1 year prior | 2025-08-23 | 18.0 | 78.89 | 46,421 | 46,143 | 256,062 | 7,332 |
*
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 | 2026-08-23 23:45 | 92.75 | 94.00 | -1.25 |
| 1 hour prior | 2026-08-23 22:45 | 92.76 | 94.00 | -1.24 |
| 2 hours prior | 2026-08-23 21:45 | 92.76 | 94.00 | -1.24 |
| 6 hours prior | 2026-08-23 17:45 | 92.77 | 94.00 | -1.23 |
| 12 hours prior | 2026-08-23 11:45 | 92.80 | 94.00 | -1.20 |
| 24 hours prior | 2026-08-22 23:45 | 92.79 | 94.00 | -1.21 |
| 48 hours prior | 2026-08-21 23:45 | 92.81 | 94.00 | -1.19 |
*
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
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 |
| USGS Monitoring Location | USGS:08210500 |
Lake Location
