Menomonie

Menomonie is a gravity dam located in Dunn County, Wisconsin, built in 1957. It carries a High hazard potential classification and has a fair condition assessment.

About Menomonie

The primary purpose of Menomonie 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 Northern States Power Co (public utility). It impounds the Red Cedar near Menomonie.

The dam stands 37 feet tall and stretches 642 feet across, creates a reservoir covering 1,405 acres, has a maximum storage capacity of 15,000 acre-feet, and collects water from a drainage area of 1,795 square miles. Completed in 1957, the structure is well into its service life at over 50 years 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 fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam. The most recent inspection on record was 06/17/2022.

At 37 feet, this dam is taller than 84% of dams nationwide.

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 HazardFair ConditionEmergency Action Plan: Yes

Location

StateWisconsin
CountyDunn
Nearest CityMenomonie
River/StreamRed Cedar
Coordinates44.88400, -91.92950

Physical Characteristics

Dam TypeGravity
NID Height37 ft
Dam Height37 ft
Dam Length642 ft
Year Completed1957 (69 years old)

Storage & Hydraulics

NID Storage15,000 acre-ft
Max Storage15,000 acre-ft
Normal Storage15,000 acre-ft
Surface Area1,405 acres
Drainage Area1,795 sq mi
Max Discharge92,000 cfs
Spillway TypeControlled

Ownership & Safety

PurposeHydroelectric
OwnerNorthern States Power Co
Owner TypePublic Utility
Hazard ClassificationHigh
Condition AssessmentFair
Last Inspection06/17/2022
Emergency Action PlanYes

Identifiers

NID IDWI00735
Federal IDWI00735
More InfoState Dam Safety Program

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