Shelldrake Dam

Shelldrake Dam is an earth dam located in Chippewa County, Michigan, built in 1964. It carries a Low hazard potential classification and has a fair condition assessment.

About Shelldrake Dam

The primary purpose of Shelldrake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Mdnr Fisheries (state). It impounds the Betsy River near Shelldrake.

The dam stands 13 feet tall and stretches 800 feet across, creates a reservoir covering 160 acres, has a maximum storage capacity of 1,168 acre-feet, and collects water from a drainage area of 13 square miles. Completed in 1964, the structure is well into its service life at over 50 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 fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. The most recent inspection on record was 08/09/2018.

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

Low HazardFair ConditionEmergency Action Plan: Not Required

Location

StateMichigan
CountyChippewa
Nearest CityShelldrake
River/StreamBetsy River
Coordinates46.71111, -85.06556

Physical Characteristics

Dam TypeEarth
NID Height13 ft
Dam Height13 ft
Dam Length800 ft
Year Completed1964 (62 years old)

Storage & Hydraulics

NID Storage1,168 acre-ft
Max Storage1,168 acre-ft
Normal Storage448 acre-ft
Surface Area160 acres
Drainage Area13 sq mi
Max Discharge1,290 cfs
Spillway TypeControlled

Ownership & Safety

PurposeRecreation
OwnerMDNR Fisheries
Owner TypeState
Hazard ClassificationLow
Condition AssessmentFair
Last Inspection08/09/2018
Emergency Action PlanNot Required

Identifiers

NID IDMI00252
Federal IDMI00252
More InfoState Dam Safety Program