Coleto Creek Reservoir: 71.6% full as of 2026-09-28
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 | 2026-09-28 | 71.6 | 94.20 | 22,229 | 22,229 | 31,040 | 2,113 |
| Yesterday | 2026-09-27 | 71.8 | 94.22 | 22,273 | 22,273 | 31,040 | 2,116 |
| 2 days ago | 2026-09-26 | 71.8 | 94.23 | 22,294 | 22,294 | 31,040 | 2,118 |
| 1 week ago | 2026-09-21 | 72.4 | 94.32 | 22,488 | 22,488 | 31,040 | 2,131 |
| 1 month ago | 2026-08-28 | 76.0 | 94.83 | 23,588 | 23,588 | 31,040 | 2,205 |
| 3 months ago | 2026-06-28 | 83.9 | 95.91 | 26,047 | 26,047 | 31,040 | 2,356 |
| 6 months ago | 2026-03-28 | 75.6 | 94.78 | 23,480 | 23,480 | 31,040 | 2,198 |
| 1 year ago | 2025-09-28 | 86.3 | 96.22 | 26,791 | 26,791 | 31,040 | 2,401 |
*
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 | 2026-09-28 06:00 | 94.20 | 98.00 | -3.80 |
| 1 hour prior | 2026-09-28 05:00 | 94.20 | 98.00 | -3.80 |
| 2 hours prior | 2026-09-28 04:00 | 94.20 | 98.00 | -3.80 |
| 6 hours prior | 2026-09-28 00:00 | 94.20 | 98.00 | -3.80 |
| 12 hours prior | 2026-09-27 18:00 | 94.19 | 98.00 | -3.81 |
| 24 hours prior | 2026-09-27 06:00 | 94.22 | 98.00 | -3.78 |
| 48 hours prior | 2026-09-26 06:00 | 94.23 | 98.00 | -3.77 |
*
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
