Upper Brunet

Upper Brunet is a gravity dam located in Sawyer County, Wisconsin, built in 1939. It carries a High hazard potential classification and has a fair condition assessment.

About Upper Brunet

The primary purpose of Upper Brunet is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Sawyer County (local government). It impounds the Brunet.

The dam stands 17 feet tall and stretches 300 feet across, creates a reservoir covering 137 acres, has a maximum storage capacity of 1,400 acre-feet, and collects water from a drainage area of 30 square miles. Completed in 1939, the structure is well-established, with more than 75 years of service.

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 11/03/2020.

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
CountySawyer
Nearest CityNone
River/StreamBrunet
Coordinates45.88836, -90.87954

Physical Characteristics

Dam TypeGravity
NID Height17 ft
Dam Height17 ft
Dam Length300 ft
Year Completed1939 (87 years old)

Storage & Hydraulics

NID Storage1,400 acre-ft
Max Storage1,400 acre-ft
Normal Storage752 acre-ft
Surface Area137 acres
Drainage Area30 sq mi
Max Discharge5,500 cfs
Spillway TypeControlled

Ownership & Safety

PurposeRecreation
OwnerSawyer County
Owner TypeLocal Government
Hazard ClassificationHigh
Condition AssessmentFair
Last Inspection11/03/2020
Emergency Action PlanYes

Identifiers

NID IDWI00199
Federal IDWI00199
More InfoState Dam Safety Program

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