Wilcox Dam

Wilcox Dam is a gravity dam located in Wayne County, Michigan, built in 1933. It carries a High hazard potential classification and has a satisfactory condition assessment.

About Wilcox Dam

The primary purpose of Wilcox Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Wayne County Dpt Of Public Services (local government). It impounds the Middle Branch River Rouge near Plymouth.

The dam stands 27 feet tall and stretches 950 feet across, creates a reservoir covering 12 acres, has a maximum storage capacity of 120 acre-feet, and collects water from a drainage area of 57 square miles. Completed in 1933, the structure is well-established, with more than 75 years of service.

This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 01/18/2018. That was 8 years ago, which is on the longer end for a high-hazard structure.

Living Downstream

If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Michigan dam safety program can provide more specific information about emergency planning for this structure.

Search for dams near your address to see all dams in your area with hazard classifications and safety data.

High HazardSatisfactory ConditionEmergency Action Plan: Yes

Location

StateMichigan
CountyWayne
Nearest CityPlymouth
River/StreamMiddle Branch River Rouge
Coordinates42.38445, -83.45714

Physical Characteristics

Dam TypeGravity
NID Height27 ft
Dam Height27 ft
Dam Length950 ft
Year Completed1933 (93 years old)

Storage & Hydraulics

NID Storage120 acre-ft
Max Storage120 acre-ft
Normal Storage115 acre-ft
Surface Area12 acres
Drainage Area57 sq mi
Max Discharge2,790 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeRecreation
OwnerWayne County Dpt of Public Services
Owner TypeLocal Government
Hazard ClassificationHigh
Condition AssessmentSatisfactory
Last Inspection01/18/2018
Emergency Action PlanYes

Identifiers

NID IDMI00398
Federal IDMI00398
More InfoState Dam Safety Program

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