Mauston

Mauston is a gravity dam located in Juneau County, Wisconsin, built in 1919. It carries a Low hazard potential classification and has a satisfactory condition assessment.

About Mauston

The primary purpose of Mauston is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by City Of Mauston (local government). It impounds the Lemonweir near Mauston.

The dam stands 14 feet tall and stretches 292 feet across, creates a reservoir covering 360 acres, has a maximum storage capacity of 2,200 acre-feet, and collects water from a drainage area of 569 square miles. Completed in 1919, 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. An emergency action plan is in place for this dam. The most recent inspection on record was 09/27/2019.

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Low HazardSatisfactory ConditionEmergency Action Plan: Yes

Location

StateWisconsin
CountyJuneau
Nearest CityMauston
River/StreamLemonweir
Coordinates43.79709, -90.06965

Physical Characteristics

Dam TypeGravity
NID Height14 ft
Dam Height14 ft
Dam Length292 ft
Year Completed1919 (107 years old)

Storage & Hydraulics

NID Storage2,200 acre-ft
Max Storage2,200 acre-ft
Normal Storage1,200 acre-ft
Surface Area360 acres
Drainage Area569 sq mi
Max Discharge6,135 cfs
Spillway TypeControlled

Ownership & Safety

PurposeRecreation
OwnerCity of Mauston
Owner TypeLocal Government
Hazard ClassificationLow
Condition AssessmentSatisfactory
Last Inspection09/27/2019
Emergency Action PlanYes

Identifiers

NID IDWI00266
Federal IDWI00266
More InfoState Dam Safety Program

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