Flat Rock Dam

High HazardFair ConditionEmergency Action Plan: Yes

Location

StateMichigan
CountyWayne
Nearest CityFlat Rock
River/StreamHuron River
Coordinates42.09983, -83.29568

Physical Characteristics

Dam TypeGravity
NID Height17 ft
Dam Height17 ft
Dam Length530 ft
Year Completed1924 (102 years old)

Storage & Hydraulics

NID Storage2,395 acre-ft
Max Storage2,395 acre-ft
Normal Storage1,550 acre-ft
Surface Area188 acres
Drainage Area876 sq mi
Max Discharge14,560 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeRecreation
OwnerHuron-Clinton Metro Authority
Owner TypeLocal Government
Hazard ClassificationHigh
Condition AssessmentFair
Last Inspection07/23/2020
Emergency Action PlanYes

Identifiers

NID IDMI00556
Federal IDMI00556
More InfoState Dam Safety Program

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