Amacoy

Amacoy is an earth dam located in Rusk County, Wisconsin, built in 1967. It carries a Low hazard potential classification.

About Amacoy

The primary purpose of Amacoy is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Town Of Stubbs (local government). It impounds the Tr Chippewa.

The dam stands 20 feet tall and stretches 300 feet across, creates a reservoir covering 278 acres, has a maximum storage capacity of 5,400 acre-feet, and collects water from a drainage area of 5 square miles. Completed in 1967, the structure is well into its service life at over 50 years 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. The most recent inspection on record was 07/23/1986. That was over 39 years ago.

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Low HazardNot Rated ConditionEmergency Action Plan: No

Location

StateWisconsin
CountyRusk
Nearest CityNone
River/StreamTr Chippewa
Coordinates45.40757, -91.29909

Physical Characteristics

Dam TypeEarth
NID Height20 ft
Dam Height20 ft
Dam Length300 ft
Year Completed1967 (59 years old)

Storage & Hydraulics

NID Storage5,400 acre-ft
Max Storage5,400 acre-ft
Normal Storage600 acre-ft
Surface Area278 acres
Drainage Area5 sq mi
Max Discharge740 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeFlood Risk Reduction
OwnerTown Of Stubbs
Owner TypeLocal Government
Hazard ClassificationLow
Condition AssessmentNot Rated
Last Inspection07/23/1986
Emergency Action PlanNo

Identifiers

NID IDWI00422
Federal IDWI00422
More InfoState Dam Safety Program

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