Forest Wonder Lake

Forest Wonder Lake is a gravity dam located in Iron County, Wisconsin, built in 1932. It carries a Low hazard potential classification and has a fair condition assessment.

About Forest Wonder Lake

The primary purpose of Forest Wonder Lake is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Canrica Llc - Ryan Lasee (private). It impounds the Swamp Creek.

The dam stands 10 feet tall and stretches 100 feet across, creates a reservoir covering 39 acres, has a maximum storage capacity of 270 acre-feet, and collects water from a drainage area of 17 square miles. Completed in 1932, the structure is well-established, with more than 75 years of service.

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. 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 10/17/2017.

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Low HazardFair ConditionEmergency Action Plan: Yes

Location

StateWisconsin
CountyIron
Nearest CityNone
River/StreamSwamp Creek
Coordinates46.14579, -90.28860

Physical Characteristics

Dam TypeGravity
NID Height10 ft
Dam Height10 ft
Dam Length100 ft
Year Completed1932 (94 years old)

Storage & Hydraulics

NID Storage270 acre-ft
Max Storage270 acre-ft
Normal Storage150 acre-ft
Surface Area39 acres
Drainage Area17 sq mi
Max Discharge557 cfs
Spillway TypeControlled

Ownership & Safety

PurposeRecreation
OwnerCanrica LLC - Ryan LaSee
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentFair
Last Inspection10/17/2017
Emergency Action PlanYes

Identifiers

NID IDWI00615
Federal IDWI00615
More InfoState Dam Safety Program

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