Coleto Creek Reservoir: 73.3% full as of 2026-09-13
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 | 2026-09-13 | 73.3 | 94.44 | 22,747 | 22,747 | 31,040 | 2,148 |
| Yesterday | 2026-09-12 | 73.4 | 94.46 | 22,790 | 22,790 | 31,040 | 2,151 |
| 2 days ago | 2026-09-11 | 73.6 | 94.49 | 22,855 | 22,855 | 31,040 | 2,156 |
| 1 week ago | 2026-09-06 | 74.4 | 94.60 | 23,092 | 23,092 | 31,040 | 2,172 |
| 1 month ago | 2026-08-13 | 79.0 | 95.25 | 24,530 | 24,530 | 31,040 | 2,265 |
| 3 months ago | 2026-06-13 | 82.4 | 95.70 | 25,564 | 25,564 | 31,040 | 2,327 |
| 6 months ago | 2026-03-13 | 76.8 | 94.95 | 23,847 | 23,847 | 31,040 | 2,223 |
| 1 year ago | 2025-09-13 | 89.3 | 96.60 | 27,719 | 27,719 | 31,040 | 2,456 |
*
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 | 2026-09-13 22:00 | 94.42 | 98.00 | -3.58 |
| 1 hour prior | 2026-09-13 21:00 | 94.43 | 98.00 | -3.57 |
| 2 hours prior | 2026-09-13 20:00 | 94.43 | 98.00 | -3.57 |
| 6 hours prior | 2026-09-13 16:00 | 94.43 | 98.00 | -3.57 |
| 12 hours prior | 2026-09-13 10:00 | 94.43 | 98.00 | -3.57 |
| 24 hours prior | 2026-09-12 22:00 | 94.45 | 98.00 | -3.55 |
| 48 hours prior | 2026-09-11 22:00 | 94.48 | 98.00 | -3.52 |
*
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
