Victoria

Victoria is a concrete dam located in Ontonagon County, Michigan, built in 1930. It carries a High hazard potential classification and has a satisfactory condition assessment.

About Victoria

The primary purpose of Victoria is hydroelectric. The dam generates hydroelectric power by channeling water through turbines, converting the energy of flowing water into electricity. It impounds the West Branch Ontonagon near Ontonagon.

The dam stands 210 feet tall and stretches 860 feet across, creates a reservoir covering 250 acres, has a maximum storage capacity of 10,300 acre-feet, and collects water from a drainage area of 661 square miles. Completed in 1930, the structure is well-established, with more than 75 years of service.

This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 06/08/2022.

At 210 feet, this dam is taller than 99% of all dams in the United States.

Living Downstream

If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Michigan dam safety program can provide more specific information about emergency planning for this structure.

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

High HazardSatisfactory ConditionEmergency Action Plan: Yes

Location

StateMichigan
CountyOntonagon
Nearest CityOntonagon
River/StreamWest Branch Ontonagon
Coordinates46.68620, -89.22950

Physical Characteristics

Dam TypeConcrete
NID Height210 ft
Dam Height115 ft
Dam Length860 ft
Year Completed1930 (96 years old)

Storage & Hydraulics

NID Storage10,300 acre-ft
Max Storage10,300 acre-ft
Normal Storage10,300 acre-ft
Surface Area250 acres
Drainage Area661 sq mi
Max Discharge21,000 cfs
Spillway TypeControlled

Ownership & Safety

PurposeHydroelectric
Owner TypeNot Listed
Hazard ClassificationHigh
Condition AssessmentSatisfactory
Last Inspection06/08/2022
Emergency Action PlanYes

Identifiers

NID IDMI00203
Federal IDMI00203
More InfoState Dam Safety Program

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