French Hydro

French Hydro is an arch dam located in Berrien County, Michigan, built in 1914. It carries a Low hazard potential classification and has a satisfactory condition assessment.

About French Hydro

The primary purpose of French Hydro 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 French Hydro Llc (private). It impounds the St Joseph River near Niles.

The dam stands 13 feet tall and stretches 321 feet across, creates a reservoir covering 110 acres, has a maximum storage capacity of 1,600 acre-feet, and collects water from a drainage area of 3,666 square miles. Completed in 1914, the structure is over a century 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 06/05/2018.

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Low HazardSatisfactory ConditionEmergency Action Plan: Not Required

Location

StateMichigan
CountyBerrien
Nearest CityNiles
River/StreamSt Joseph River
Coordinates41.81760, -86.25910

Physical Characteristics

Dam TypeArch
NID Height13 ft
Dam Height13 ft
Dam Length321 ft
Year Completed1914 (112 years old)

Storage & Hydraulics

NID Storage1,600 acre-ft
Max Storage1,600 acre-ft
Normal Storage610 acre-ft
Surface Area110 acres
Drainage Area3,666 sq mi
Max Discharge22,000 cfs
Spillway TypeControlled

Ownership & Safety

PurposeHydroelectric
OwnerFrench Hydro LLC
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentSatisfactory
Last Inspection06/05/2018
Emergency Action PlanNot Required

Identifiers

NID IDMI00537
Federal IDMI00537
More InfoState Dam Safety Program

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