Coleto Creek Reservoir: 79.6% full as of 2026-08-11
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 | 2026-08-11 | 79.6 | 95.33 | 24,714 | 24,714 | 31,040 | 2,276 |
| Yesterday | 2026-08-10 | 79.7 | 95.34 | 24,737 | 24,737 | 31,040 | 2,277 |
| 2 days ago | 2026-08-09 | 79.8 | 95.35 | 24,760 | 24,760 | 31,040 | 2,279 |
| 1 week ago | 2026-08-04 | 80.7 | 95.48 | 25,059 | 25,059 | 31,040 | 2,297 |
| 1 month ago | 2026-07-11 | 82.7 | 95.74 | 25,656 | 25,656 | 31,040 | 2,333 |
| 3 months ago | 2026-05-11 | 75.5 | 94.76 | 23,437 | 23,437 | 31,040 | 2,195 |
| 6 months ago | 2026-02-11 | 75.3 | 94.73 | 23,373 | 23,373 | 31,040 | 2,191 |
| 1 year ago | 2025-08-11 | 95.7 | 97.43 | 29,703 | 29,703 | 31,040 | 2,573 |
*
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 | 2026-08-11 05:00 | 95.33 | 98.00 | -2.67 |
| 1 hour prior | 2026-08-11 04:00 | 95.33 | 98.00 | -2.67 |
| 2 hours prior | 2026-08-11 03:00 | 95.33 | 98.00 | -2.67 |
| 6 hours prior | 2026-08-10 23:00 | 95.33 | 98.00 | -2.67 |
| 12 hours prior | 2026-08-10 17:00 | 95.34 | 98.00 | -2.66 |
| 24 hours prior | 2026-08-10 05:00 | 95.34 | 98.00 | -2.66 |
| 48 hours prior | 2026-08-09 05:00 | 95.36 | 98.00 | -2.64 |
*
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
