Seven Lakes Addition Dam

Seven Lakes Addition Dam is an earth dam located in Oakland County, Michigan, built in 1970. It carries a Low hazard potential classification and has a satisfactory condition assessment.

About Seven Lakes Addition Dam

The primary purpose of Seven Lakes Addition Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Mdnr Parks & Recreation (state). It impounds the Swartz Creek near Flint.

The dam stands 26 feet tall and stretches 500 feet across, creates a reservoir covering 19 acres, has a maximum storage capacity of 335 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1970, 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 satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 10/16/2020.

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Low HazardSatisfactory ConditionEmergency Action Plan: Not Required

Location

StateMichigan
CountyOakland
Nearest CityFlint
River/StreamSwartz Creek
Coordinates42.81673, -83.67007

Physical Characteristics

Dam TypeEarth
NID Height26 ft
Dam Height26 ft
Dam Length500 ft
Year Completed1970 (56 years old)

Storage & Hydraulics

NID Storage335 acre-ft
Max Storage335 acre-ft
Normal Storage240 acre-ft
Surface Area19 acres
Drainage Area0 sq mi
Max Discharge60 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeRecreation
OwnerMDNR Parks & Recreation
Owner TypeState
Hazard ClassificationLow
Condition AssessmentSatisfactory
Last Inspection10/16/2020
Emergency Action PlanNot Required

Identifiers

NID IDMI00448
Federal IDMI00448
More InfoState Dam Safety Program

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