Lake Corpus Christi: 89.1% full as of 2026-09-01
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 | 2026-09-01 | 89.1 | 92.55 | 228,327 | 228,049 | 256,062 | 18,890 |
| Yesterday | 2026-08-31 | 89.1 | 92.55 | 228,327 | 228,049 | 256,062 | 18,890 |
| 2 days ago | 2026-08-30 | 89.3 | 92.58 | 228,894 | 228,616 | 256,062 | 18,907 |
| 1 week ago | 2026-08-25 | 90.3 | 92.72 | 231,547 | 231,269 | 256,062 | 18,990 |
| 1 month ago | 2026-08-01 | 43.7 | 85.38 | 112,129 | 111,851 | 256,062 | 13,198 |
| 3 months ago | 2026-06-01 | 23.3 | 80.58 | 59,813 | 59,535 | 256,062 | 8,634 |
| 6 months ago | 2026-03-01 | 10.0 | 75.61 | 25,989 | 25,711 | 256,062 | 5,206 |
| 1 year ago | 2025-09-01 | 17.2 | 78.59 | 44,250 | 43,972 | 256,062 | 7,140 |
*
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 | 2026-09-01 23:00 | 92.52 | 94.00 | -1.48 |
| 1 hour prior | 2026-09-01 22:00 | 92.53 | 94.00 | -1.47 |
| 2 hours prior | 2026-09-01 21:00 | 92.52 | 94.00 | -1.48 |
| 6 hours prior | 2026-09-01 17:00 | 92.57 | 94.00 | -1.43 |
| 12 hours prior | 2026-09-01 11:00 | 92.54 | 94.00 | -1.46 |
| 24 hours prior | 2026-08-31 23:00 | 92.53 | 94.00 | -1.47 |
| 48 hours prior | 2026-08-30 23:00 | 92.57 | 94.00 | -1.43 |
*
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
