Manistique Lake Dam

Manistique Lake Dam is a gravity dam located in Schoolcraft County, Michigan, built in 1977. It carries a Low hazard potential classification and has a satisfactory condition assessment.

About Manistique Lake Dam

Manistique Lake Dam is a dam in Schoolcraft, Michigan. The dam is owned by Luce County Road Commission (private). It impounds the Manistique River near Germfask.

The dam stands 7 feet tall and stretches 60 feet across, creates a reservoir covering 7,214 acres, and has a maximum storage capacity of 28,000 acre-feet. Completed in 1977, the structure is 49 years old.

This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 10/12/2018.

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Low HazardSatisfactory ConditionEmergency Action Plan: Not Required

Location

StateMichigan
CountySchoolcraft
Nearest CityGermfask
River/StreamManistique River
Coordinates46.25667, -85.87500

Physical Characteristics

Dam TypeGravity
NID Height7 ft
Dam Height7 ft
Dam Length60 ft
Year Completed1977 (49 years old)

Storage & Hydraulics

NID Storage28,000 acre-ft
Max Storage28,000 acre-ft
Normal Storage20,200 acre-ft
Surface Area7,214 acres
Max Discharge560 cfs
Spillway TypeControlled

Ownership & Safety

PurposeOther
OwnerLuce County Road Commission
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentSatisfactory
Last Inspection10/12/2018
Emergency Action PlanNot Required

Identifiers

NID IDMI00334
Federal IDMI00334
More InfoState Dam Safety Program

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