Little Quinnesec Falls

Little Quinnesec Falls is a gravity dam located in Marinette County, Wisconsin, built in 1900. It carries a High hazard potential classification and has a satisfactory condition assessment.

About Little Quinnesec Falls

The primary purpose of Little Quinnesec Falls is hydroelectric. The dam generates hydroelectric power by channeling water through turbines, converting the energy of flowing water into electricity. It impounds the Menominee River near Niagara.

The dam stands 67 feet tall and stretches 112 feet across, creates a reservoir covering 349 acres, has a maximum storage capacity of 3,350 acre-feet, and collects water from a drainage area of 2,470 square miles. Completed in 1900, the structure is over a century old.

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 07/13/2022.

At 67 feet, this dam is taller than 96% 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 Wisconsin 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

StateWisconsin
CountyMarinette
Nearest CityNiagara
River/StreamMenominee River
Coordinates45.77350, -87.98920

Physical Characteristics

Dam TypeGravity
NID Height67 ft
Dam Height22 ft
Dam Length112 ft
Year Completed1900 (126 years old)

Storage & Hydraulics

NID Storage3,350 acre-ft
Max Storage3,350 acre-ft
Normal Storage3,000 acre-ft
Surface Area349 acres
Drainage Area2,470 sq mi
Max Discharge33,000 cfs
Spillway TypeControlled

Ownership & Safety

PurposeHydroelectric
Owner TypeNot Listed
Hazard ClassificationHigh
Condition AssessmentSatisfactory
Last Inspection07/13/2022
Emergency Action PlanYes

Identifiers

NID IDWI00755
Federal IDWI00755
More InfoState Dam Safety Program

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