Lake Corpus Christi: 84.3% full as of 2026-09-22
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 | 2026-09-22 | 84.3 | 91.90 | 216,174 | 215,896 | 256,062 | 18,505 |
| Yesterday | 2026-09-21 | 84.5 | 91.93 | 216,729 | 216,451 | 256,062 | 18,523 |
| 2 days ago | 2026-09-20 | 84.9 | 91.98 | 217,656 | 217,378 | 256,062 | 18,552 |
| 1 week ago | 2026-09-15 | 85.5 | 92.06 | 219,142 | 218,864 | 256,062 | 18,600 |
| 1 month ago | 2026-08-22 | 91.3 | 92.85 | 234,020 | 233,742 | 256,062 | 19,067 |
| 3 months ago | 2026-06-22 | 30.7 | 82.58 | 78,967 | 78,689 | 256,062 | 10,488 |
| 6 months ago | 2026-03-22 | 9.1 | 75.15 | 23,656 | 23,378 | 256,062 | 4,932 |
| 1 year ago | 2025-09-22 | 15.4 | 77.92 | 39,627 | 39,349 | 256,062 | 6,637 |
*
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 | 2026-09-22 00:00 | 91.90 | 94.00 | -2.10 |
| 1 hour prior | 2026-09-21 23:00 | 91.90 | 94.00 | -2.10 |
| 2 hours prior | 2026-09-21 22:00 | 91.91 | 94.00 | -2.09 |
| 6 hours prior | 2026-09-21 18:00 | 91.87 | 94.00 | -2.13 |
| 12 hours prior | 2026-09-21 12:00 | 91.96 | 94.00 | -2.04 |
| 24 hours prior | 2026-09-21 00:00 | 91.96 | 94.00 | -2.04 |
| 48 hours prior | 2026-09-20 00:00 | 92.00 | 94.00 | -2.00 |
*
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
