Wild Rivers Invasive Species Coalition

The Wild Rivers Invasive Species Coalition (WRISC) is a cooperative invasive species partnership operating in northeast Wisconsin and the Upper Peninsula of Michigan. The partnership consists of a wide range of partners and members from local, state, tribal, and federal agencies, land managers, utility companies, civic organizations, businesses, and individuals, all interested in the education and management of invasive species in the five county WRISC area. Non-native invasive species can have devastating ecological and economic impacts to communities. Industries such as forestry, agriculture, and outdoor recreation are all at risk, as are native fish and wildlife habitats. Invasive species are often widely dispersed across the landscape, and do not respect geopolitical boundaries. As such, this coalition strives to combine multi-agency resources and expertise to coordinate education and management of invasive species across borders, promoting best management practices that will help to slow the spread of these invaders.

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Newsletter Spring 2021

Shakey Lakes Newsletter 2021 Spring.pdf

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Shakey Lakes Dam Reline

Shakey Lakes Park, located in Menominee County, Michigan, is known for its great fishing and gorgeous views around the lakes. Both locals and tourists alike take advantage of the many amenities available there, and Menominee County takes pride in the advantages the park and surrounding lakes afford.

In 2017, the Menominee County Road Commission looked for a way to reline and/or replace the drawdown pipe (60-inch diameter) and six large culvert pipes (72-inch diameter) that comprise the Shakey Lakes Dam structure. Originally installed in 1963, these culverts were experiencing significant corrosion and had outperformed their intended service life.

To identify the most cost-efficient solution possible, the County looked at several potential options. Reconstruction of the existing dam would be extremely expensive, and the County was hopeful they would be able to identify a solution that would allow for a repair. The ability to reline the existing pipe culverts without replacing the dam as well as the existing concrete headwalls was the most economic solutions, and fortunately it was a viable option. The Road Commission decided the reline of the culvert pipes was the best option as it allowed the structure of the dam to remain intact. Smooth Cor™ double wall pipe, manufactured by Contech Engineered Solutions, was specified for use in the bid documents. The outside diameter of the Smooth Cor corrugated metal pipe (CMP) was to be six (6) inches less than the diameter of the original pipes.....

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