Upper Hiawatha Dam

Significant HazardPoor ConditionEmergency Action Plan: Yes

Location

StateMichigan
CountyMontmorency
Nearest CityHillman
River/StreamBrush Creek
Coordinates45.09875, -84.06006

Physical Characteristics

Dam TypeEarth
NID Height9 ft
Dam Height9 ft
Dam Length226 ft
Year Completed1947 (79 years old)

Storage & Hydraulics

NID Storage72 acre-ft
Max Storage72 acre-ft
Normal Storage50 acre-ft
Surface Area20 acres
Drainage Area11 sq mi
Spillway TypeUncontrolled

Ownership & Safety

PurposeRecreation
OwnerTwin Dams Owners Association
Owner TypePrivate
Hazard ClassificationSignificant
Condition AssessmentPoor
Last Inspection07/15/2018
Emergency Action PlanYes

Identifiers

NID IDMI00134
Federal IDMI00134
More InfoState Dam Safety Program

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