Olson Meadows Flowage

Olson Meadows Flowage is an earth dam located in Douglas County, Wisconsin, built in 1975. It carries a High hazard potential classification and has a fair condition assessment.

About Olson Meadows Flowage

The primary purpose of Olson Meadows Flowage is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Douglas County (local government). It impounds the Tr Lower Ox Creek.

The dam stands 11 feet tall and stretches 400 feet across, creates a reservoir covering 40 acres, has a maximum storage capacity of 200 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1975, the structure is well into its service life at over 50 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 06/17/2020.

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
CountyDouglas
Nearest CityNone
River/StreamTr Lower Ox Creek
Coordinates46.32501, -91.78082

Physical Characteristics

Dam TypeEarth
NID Height11 ft
Dam Height11 ft
Dam Length400 ft
Year Completed1975 (51 years old)

Storage & Hydraulics

NID Storage200 acre-ft
Max Storage200 acre-ft
Normal Storage120 acre-ft
Surface Area40 acres
Drainage Area1 sq mi
Max Discharge150 cfs
Spillway TypeControlled

Ownership & Safety

PurposeRecreation
OwnerDouglas County
Owner TypeLocal Government
Hazard ClassificationHigh
Condition AssessmentFair
Last Inspection06/17/2020
Emergency Action PlanYes

Identifiers

NID IDWI00462
Federal IDWI00462
More InfoState Dam Safety Program

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