Grand Mere Lake Level Control Structure

Grand Mere Lake Level Control Structure is a gravity dam located in Berrien County, Michigan, built in 2007. It carries a Low hazard potential classification and has a satisfactory condition assessment.

About Grand Mere Lake Level Control Structure

The primary purpose of Grand Mere Lake Level Control Structure is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Berrien County Drain Commissioner (private). It impounds the Valley Drain.

The dam stands 8 feet tall and stretches 50 feet across, creates a reservoir covering 68 acres, has a maximum storage capacity of 400 acre-feet, and collects water from a drainage area of 5 square miles. Completed in 2007, the structure is relatively new.

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 12/04/2020.

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Low HazardSatisfactory ConditionEmergency Action Plan: Not Required

Location

StateMichigan
CountyBerrien
River/StreamValley Drain
Coordinates42.01643, -86.54339

Physical Characteristics

Dam TypeGravity
NID Height8 ft
Dam Height8 ft
Dam Length50 ft
Year Completed2007 (19 years old)

Storage & Hydraulics

NID Storage400 acre-ft
Max Storage400 acre-ft
Normal Storage95 acre-ft
Surface Area68 acres
Drainage Area5 sq mi
Spillway TypeUncontrolled

Ownership & Safety

PurposeRecreation
OwnerBerrien County Drain Commissioner
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentSatisfactory
Last Inspection12/04/2020
Emergency Action PlanNot Required

Identifiers

NID IDMI00952
Federal IDMI00952
More InfoState Dam Safety Program

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