Drummond Mill Pond

Drummond Mill Pond is an earth dam located in Bayfield County, Wisconsin, built in 1889. It carries a High hazard potential classification and has a fair condition assessment.

About Drummond Mill Pond

The primary purpose of Drummond Mill Pond is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Wisconsin Department Of Transportation (state). It impounds the Long Lake Branch White near Drummond.

The dam stands 24 feet tall and stretches 130 feet across, creates a reservoir covering 62 acres, has a maximum storage capacity of 450 acre-feet, and collects water from a drainage area of 45 square miles. Completed in 1889, the structure is over a century 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 10/05/2020.

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
CountyBayfield
Nearest CityDrummond
River/StreamLong Lake Branch White
Coordinates46.33127, -91.26134

Physical Characteristics

Dam TypeEarth
NID Height24 ft
Dam Height24 ft
Dam Length130 ft
Year Completed1889 (137 years old)

Storage & Hydraulics

NID Storage450 acre-ft
Max Storage450 acre-ft
Normal Storage200 acre-ft
Surface Area62 acres
Drainage Area45 sq mi
Max Discharge780 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeRecreation
OwnerWisconsin Department of Transportation
Owner TypeState
Hazard ClassificationHigh
Condition AssessmentFair
Last Inspection10/05/2020
Emergency Action PlanYes

Identifiers

NID IDWI00064
Federal IDWI00064
More InfoState Dam Safety Program

Nearby Dams