Heron Dam

High HazardFair ConditionEmergency Action Plan: Yes

Location

StateMichigan
CountyOakland
Nearest CityGrand Blanc
River/StreamThread Creek
Coordinates42.81103, -83.53075

Physical Characteristics

Dam TypeEarth
NID Height26 ft
Dam Height26 ft
Dam Length1,025 ft
Year Completed1969 (57 years old)

Storage & Hydraulics

NID Storage1,600 acre-ft
Max Storage1,600 acre-ft
Normal Storage1,100 acre-ft
Surface Area123 acres
Drainage Area3 sq mi
Max Discharge74 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeRecreation
OwnerMDNR Parks & Recreation
Owner TypeState
Hazard ClassificationHigh
Condition AssessmentFair
Last Inspection10/17/2018
Emergency Action PlanYes

Identifiers

NID IDMI00692
Federal IDMI00692
More InfoState Dam Safety Program

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