Sheboygan Marsh

Sheboygan Marsh is a gravity dam located in Sheboygan County, Wisconsin, built in 1937. It carries a Low hazard potential classification and has a fair condition assessment.

About Sheboygan Marsh

The primary purpose of Sheboygan Marsh is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Sheboygan County (local government). It impounds the Sheboygan near Kiel.

The dam stands 17 feet tall and stretches 100 feet across, creates a reservoir covering 674 acres, has a maximum storage capacity of 5,000 acre-feet, and collects water from a drainage area of 84 square miles. Completed in 1937, the structure is well-established, with more than 75 years of service.

This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam. The most recent inspection on record was 06/03/2021.

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Low HazardFair ConditionEmergency Action Plan: Yes

Location

StateWisconsin
CountySheboygan
Nearest CityKiel
River/StreamSheboygan
Coordinates43.84926, -88.04730

Physical Characteristics

Dam TypeGravity
NID Height17 ft
Dam Height17 ft
Dam Length100 ft
Year Completed1937 (89 years old)

Storage & Hydraulics

NID Storage5,000 acre-ft
Max Storage5,000 acre-ft
Normal Storage2,000 acre-ft
Surface Area674 acres
Drainage Area84 sq mi
Max Discharge2,800 cfs
Spillway TypeControlled

Ownership & Safety

PurposeRecreation
OwnerSheboygan County
Owner TypeLocal Government
Hazard ClassificationLow
Condition AssessmentFair
Last Inspection06/03/2021
Emergency Action PlanYes

Identifiers

NID IDWI00314
Federal IDWI00314
More InfoState Dam Safety Program

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