Little St Germain

Little St Germain is a gravity dam located in Vilas County, Wisconsin, built in 1908. It carries a Low hazard potential classification and has a satisfactory condition assessment.

About Little St Germain

The primary purpose of Little St Germain 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 Wisconsin Valley Improvement Company (public utility). It impounds the Little St Germain River near Rhinelander.

The dam stands 9 feet tall and stretches 104 feet across, has a maximum storage capacity of 11,364 acre-feet, and collects water from a drainage area of 19 square miles. Completed in 1908, 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 08/03/2022.

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Low HazardSatisfactory ConditionEmergency Action Plan: Not Required

Location

StateWisconsin
CountyVilas
Nearest CityRhinelander
River/StreamLittle St Germain River
Coordinates45.89860, -89.45330

Physical Characteristics

Dam TypeGravity
NID Height9 ft
Dam Height9 ft
Dam Length104 ft
Year Completed1908 (118 years old)

Storage & Hydraulics

NID Storage11,364 acre-ft
Max Storage11,364 acre-ft
Drainage Area19 sq mi
Max Discharge173 cfs
Spillway TypeControlled

Ownership & Safety

PurposeHydroelectric
OwnerWisconsin Valley Improvement Company
Owner TypePublic Utility
Hazard ClassificationLow
Condition AssessmentSatisfactory
Last Inspection08/03/2022
Emergency Action PlanNot Required

Identifiers

NID IDWI01017
Federal IDWI01017
More InfoState Dam Safety Program

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