Mcdonald Lake Dam

Mcdonald Lake Dam is a concrete dam located in Gogebic County, Michigan, built in 1941. It carries a Low hazard potential classification and has a satisfactory condition assessment.

About Mcdonald Lake Dam

The primary purpose of Mcdonald Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Gogebic County Forestry Commission (local government). It impounds the Mcdonald Creek near Ramsay.

The dam stands 9 feet tall and stretches 88 feet across, creates a reservoir covering 390 acres, has a maximum storage capacity of 1,400 acre-feet, and collects water from a drainage area of 24 square miles. Completed in 1941, the structure is well-established, with more than 75 years of service.

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 10/11/2017.

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Low HazardSatisfactory ConditionEmergency Action Plan: Not Required

Location

StateMichigan
CountyGogebic
Nearest CityRamsay
River/StreamMcdonald Creek
Coordinates46.39056, -90.01389

Physical Characteristics

Dam TypeConcrete
NID Height9 ft
Dam Height9 ft
Dam Length88 ft
Year Completed1941 (85 years old)

Storage & Hydraulics

NID Storage1,400 acre-ft
Max Storage1,400 acre-ft
Normal Storage1,090 acre-ft
Surface Area390 acres
Drainage Area24 sq mi
Max Discharge380 cfs
Spillway TypeControlled

Ownership & Safety

PurposeRecreation
OwnerGogebic County Forestry Commission
Owner TypeLocal Government
Hazard ClassificationLow
Condition AssessmentSatisfactory
Last Inspection10/11/2017
Emergency Action PlanNot Required

Identifiers

NID IDMI00072
Federal IDMI00072
More InfoState Dam Safety Program

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