Cheboygan

Cheboygan is a timber crib dam located in Cheboygan County, Michigan, built in 1922. It carries a High hazard potential classification and has a fair condition assessment.

About Cheboygan

The primary purpose of Cheboygan is hydroelectric. The dam generates hydroelectric power by channeling water through turbines, converting the energy of flowing water into electricity. The dam is owned by Michigan Department Of Natural Resources (private). It impounds the Cheboygan River near Cheboygan.

The dam stands 21 feet tall and stretches 580 feet across, creates a reservoir covering 17,801 acres, has a maximum storage capacity of 83,000 acre-feet, and collects water from a drainage area of 1,515 square miles. Completed in 1922, the structure is over a century old.

This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam. The most recent inspection on record was 09/07/2022.

Living Downstream

If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Michigan dam safety program can provide more specific information about emergency planning for this structure.

Search for dams near your address to see all dams in your area with hazard classifications and safety data.

High HazardFair ConditionEmergency Action Plan: Yes

Location

StateMichigan
CountyCheboygan
Nearest CityCheboygan
River/StreamCheboygan River
Coordinates45.63610, -84.47970

Physical Characteristics

Dam TypeTimber Crib
NID Height21 ft
Dam Height21 ft
Dam Length580 ft
Year Completed1922 (104 years old)

Storage & Hydraulics

NID Storage83,000 acre-ft
Max Storage83,000 acre-ft
Normal Storage82,947 acre-ft
Surface Area17,801 acres
Drainage Area1,515 sq mi
Max Discharge7,640 cfs
Spillway TypeControlled

Ownership & Safety

PurposeHydroelectric
OwnerMichigan Department of Natural Resources
Owner TypePrivate
Hazard ClassificationHigh
Condition AssessmentFair
Last Inspection09/07/2022
Emergency Action PlanYes

Identifiers

NID IDMI00520
Federal IDMI00520
More InfoState Dam Safety Program

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