Coleto Creek Reservoir: 72.1% full as of 2026-09-23
Historical Data
| Date | Percent Full |
Mean Water Level (ft) |
Reservoir Storage (acre-ft) |
Conservation Storage (acre-ft) |
Conservation Capacity (acre-ft) |
Surface Area (acres) |
|
|---|---|---|---|---|---|---|---|
| Today | 2026-09-23 | 72.1 | 94.27 | 22,380 | 22,380 | 31,040 | 2,123 |
| Yesterday | 2026-09-22 | 72.3 | 94.30 | 22,445 | 22,445 | 31,040 | 2,128 |
| 2 days ago | 2026-09-21 | 72.4 | 94.32 | 22,488 | 22,488 | 31,040 | 2,131 |
| 1 week ago | 2026-09-16 | 72.7 | 94.36 | 22,575 | 22,575 | 31,040 | 2,137 |
| 1 month ago | 2026-08-23 | 76.8 | 94.94 | 23,826 | 23,826 | 31,040 | 2,221 |
| 3 months ago | 2026-06-23 | 83.5 | 95.85 | 25,909 | 25,909 | 31,040 | 2,348 |
| 6 months ago | 2026-03-23 | 76.1 | 94.84 | 23,610 | 23,610 | 31,040 | 2,207 |
| 1 year ago | 2025-09-23 | 87.0 | 96.31 | 27,011 | 27,011 | 31,040 | 2,414 |
*
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 | 2026-09-23 17:00 | 94.24 | 98.00 | -3.76 |
| 1 hour prior | 2026-09-23 16:00 | 94.25 | 98.00 | -3.75 |
| 2 hours prior | 2026-09-23 15:00 | 94.27 | 98.00 | -3.73 |
| 6 hours prior | 2026-09-23 11:00 | 94.27 | 98.00 | -3.73 |
| 12 hours prior | 2026-09-23 05:00 | 94.27 | 98.00 | -3.73 |
| 24 hours prior | 2026-09-22 17:00 | 94.29 | 98.00 | -3.71 |
| 48 hours prior | 2026-09-21 17:00 | 94.30 | 98.00 | -3.70 |
*
Data is provisional and subject to revision.
Additional Information
| Impoundment date | 1980-01-01 |
| Vertical datum | NGVD29 +80 |
| Service spillway crest elevation | 71.00 ft above NGVD29 +80 |
| Emergency spillway crest elevation | 107.30 ft above NGVD29 +80 |
| Maximum design elevation | 114.80 ft above NGVD29 +80 |
| Top of dam elevation | 120.00 ft above NGVD29 +80 |
| Conservation pool elevation | 98.00 ft above NGVD29 +80 |
| Data download (CSV) | period of record, last one year, last 30 days |
Elevation-Area-Capacity Curves
1978-01-01 (source: UNKNOWN)
|
|
| Data Source | USGS:08177400 |
| USGS Monitoring Location | USGS:08177400 |
Lake Location
