Alverno

Alverno is an earth dam located in Cheboygan County, Michigan, built in 1902. It carries a Low hazard potential classification and has a satisfactory condition assessment.

About Alverno

The primary purpose of Alverno is hydroelectric. The dam generates hydroelectric power by channeling water through turbines, converting the energy of flowing water into electricity. It impounds the Black River.

The dam stands 19 feet tall and stretches 450 feet across, creates a reservoir covering 10,233 acres, has a maximum storage capacity of 105,034 acre-feet, and collects water from a drainage area of 621 square miles. Completed in 1902, 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 08/15/2018.

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Low HazardSatisfactory ConditionEmergency Action Plan: Not Required

Location

StateMichigan
CountyCheboygan
River/StreamBlack River
Coordinates45.55440, -84.39880

Physical Characteristics

Dam TypeEarth
NID Height19 ft
Dam Height19 ft
Dam Length450 ft
Year Completed1902 (124 years old)

Storage & Hydraulics

NID Storage105,034 acre-ft
Max Storage105,034 acre-ft
Normal Storage49,496 acre-ft
Surface Area10,233 acres
Drainage Area621 sq mi
Max Discharge4,270 cfs

Ownership & Safety

PurposeHydroelectric
Owner TypeNot Listed
Hazard ClassificationLow
Condition AssessmentSatisfactory
Last Inspection08/15/2018
Emergency Action PlanNot Required

Identifiers

NID IDMI00521
Federal IDMI00521
More InfoState Dam Safety Program

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