Lake Corpus Christi: 91.7% full as of 2026-08-12
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 | 2026-08-12 | 91.7 | 92.91 | 235,166 | 234,888 | 256,062 | 19,103 |
| Yesterday | 2026-08-11 | 91.4 | 92.87 | 234,402 | 234,124 | 256,062 | 19,079 |
| 2 days ago | 2026-08-10 | 90.9 | 92.80 | 233,068 | 232,790 | 256,062 | 19,038 |
| 1 week ago | 2026-08-05 | 77.4 | 90.93 | 198,512 | 198,234 | 256,062 | 17,862 |
| 1 month ago | 2026-07-12 | 34.0 | 83.35 | 87,327 | 87,049 | 256,062 | 11,213 |
| 3 months ago | 2026-05-12 | 11.2 | 76.14 | 28,830 | 28,552 | 256,062 | 5,520 |
| 6 months ago | 2026-02-12 | 10.8 | 75.97 | 27,900 | 27,622 | 256,062 | 5,417 |
| 1 year ago | 2025-08-12 | 19.0 | 79.22 | 48,877 | 48,599 | 256,062 | 7,554 |
*
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 | 2026-08-12 16:00 | 92.90 | 94.00 | -1.10 |
| 1 hour prior | 2026-08-12 15:00 | 92.92 | 94.00 | -1.08 |
| 2 hours prior | 2026-08-12 14:00 | 92.91 | 94.00 | -1.09 |
| 6 hours prior | 2026-08-12 10:00 | 92.90 | 94.00 | -1.10 |
| 12 hours prior | 2026-08-12 04:00 | 92.92 | 94.00 | -1.08 |
| 24 hours prior | 2026-08-11 16:00 | 92.87 | 94.00 | -1.13 |
| 48 hours prior | 2026-08-10 16:00 | 92.80 | 94.00 | -1.20 |
*
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
