Blackhawk Dam

Low HazardPoor ConditionEmergency Action Plan: Not Required

Location

StateMichigan
CountyBranch
Nearest CityColdwater
River/StreamColdwater River
Coordinates41.91667, -85.04833

Physical Characteristics

Dam TypeEarth
NID Height18 ft
Dam Height17 ft
Dam Length1,040 ft
Year Completed1830 (196 years old)

Storage & Hydraulics

NID Storage276 acre-ft
Max Storage276 acre-ft
Normal Storage216 acre-ft
Surface Area200 acres
Drainage Area72 sq mi
Max Discharge1,370 cfs
Spillway TypeControlled

Ownership & Safety

PurposeRecreation
OwnerBranch County
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentPoor
Last Inspection10/25/2016
Emergency Action PlanNot Required

Identifiers

NID IDMI00020
Federal IDMI00020
More InfoState Dam Safety Program

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