Mosinee

Wisconsin — Marathon County — Wisconsin River

Location

StateWisconsin
CountyMarathon
RiverWisconsin River
Coordinates44.79070, -89.69530

Physical Characteristics

NID Height22 ft
Dam Height22 ft
Dam Length923 ft
NID Storage8,170 acre-ft
Max Storage8,170 acre-ft
Surface Area1,377 acres

Safety Classification

Hazard PotentialLow
Condition AssessmentPoor
EAP StatusYes
Last InspectionJune 3, 2025
Inspection Frequency3

Dam Information

Year Completed1910
Primary PurposeHydroelectric
Dam TypeGravity
Owner TypeNot Listed

Location Map

About This Dam Record

Dam safety data is maintained by the Army Corps of Engineers National Inventory of Dams (NID). High-hazard dams are those where failure could cause loss of life or major property damage downstream.

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