Auroraville

Auroraville is a gravity dam located in Waushara County, Wisconsin, built in 1987. It carries a High hazard potential classification and has a fair condition assessment.

About Auroraville

Auroraville is a dam in Waushara, Wisconsin. The dam is owned by Olsen Brothers (private). It impounds the Willow Creek near Auroraville.

The dam stands 13 feet tall and stretches 350 feet across, creates a reservoir covering 209 acres, has a maximum storage capacity of 1,320 acre-feet, and collects water from a drainage area of 80 square miles. Completed in 1987, the structure is 39 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 09/26/2019.

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
CountyWaushara
Nearest CityAuroraville
River/StreamWillow Creek
Coordinates44.05397, -88.99175

Physical Characteristics

Dam TypeGravity
NID Height13 ft
Dam Height13 ft
Dam Length350 ft
Year Completed1987 (39 years old)

Storage & Hydraulics

NID Storage1,320 acre-ft
Max Storage1,320 acre-ft
Normal Storage484 acre-ft
Surface Area209 acres
Drainage Area80 sq mi
Max Discharge1,230 cfs
Spillway TypeControlled

Ownership & Safety

PurposeOther
OwnerOlsen Brothers
Owner TypePrivate
Hazard ClassificationHigh
Condition AssessmentFair
Last Inspection09/26/2019
Emergency Action PlanYes

Identifiers

NID IDWI00340
Federal IDWI00340
More InfoState Dam Safety Program

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