Coleto Creek Reservoir: 91.0% full as of 2024-07-20

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 2024-07-20 91.0 96.81 28,231 28,231 31,040 2,486
Yesterday 2024-07-19 91.0 96.81 28,231 28,231 31,040 2,486
2 days ago 2024-07-18 91.0 96.82 28,256 28,256 31,040 2,488
1 week ago 2024-07-13 91.5 96.88 28,402 28,402 31,040 2,497
1 month ago 2024-06-20 94.3 97.25 29,281 29,281 31,040 2,548
3 months ago 2024-04-20 98.1 97.75 30,454 30,454 31,040 2,618
6 months ago 2024-01-20 77.1 94.99 23,933 23,933 31,040 2,229
1 year ago 2023-07-20 94.0 97.21 29,187 29,187 31,040 2,543
*

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 2024-07-20 14:00 96.80 98.00 -1.20
1 hour prior 2024-07-20 13:00 96.80 98.00 -1.20
2 hours prior 2024-07-20 12:00 96.80 98.00 -1.20
6 hours prior 2024-07-20 08:00 96.80 98.00 -1.20
12 hours prior 2024-07-20 02:00 96.81 98.00 -1.19
24 hours prior 2024-07-19 14:00 96.82 98.00 -1.18
48 hours prior 2024-07-18 14:00 96.82 98.00 -1.18
*

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
Top of flood gate elevation 99.00 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