Coleto Creek Reservoir: 84.1% full as of 2026-06-26

The elevation-storage rating curve used to produce the storage hydrograph is made of two segments: (1) the segment up to the conservation pool top (below the red line) is based on measured data, and (2) the segment in the flood pool (above the red line) is an extrapolation from the first segment and shouldn't be relied upon for flood storage information.

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 2026-06-26 84.1 95.93 26,093 26,093 31,040 2,359
Yesterday 2026-06-25 84.0 95.92 26,070 26,070 31,040 2,358
2 days ago 2026-06-24 83.7 95.88 25,978 25,978 31,040 2,352
1 week ago 2026-06-19 83.8 95.90 26,024 26,024 31,040 2,355
1 month ago 2026-05-26 76.9 94.96 23,869 23,869 31,040 2,224
3 months ago 2026-03-26 75.8 94.80 23,524 23,524 31,040 2,201
6 months ago 2025-12-26 76.8 94.95 23,847 23,847 31,040 2,223
1 year ago 2025-06-26 100.0 98.45 32,370 31,040 31,040 2,713
*

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 2026-06-26 12:00 95.94 98.00 -2.06
1 hour prior 2026-06-26 11:00 95.94 98.00 -2.06
2 hours prior 2026-06-26 10:00 95.93 98.00 -2.07
6 hours prior 2026-06-26 06:00 95.94 98.00 -2.06
12 hours prior 2026-06-26 00:00 95.93 98.00 -2.07
24 hours prior 2026-06-25 12:00 95.93 98.00 -2.07
48 hours prior 2026-06-24 12:00 95.88 98.00 -2.12
*

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

Lake Location