Lakefront Property

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Courtesy of Griffin Dewatering

With 75 percent of the $45-million, three-story Pier Wisconsin project in Milwaukee being constructed over Lake Michigan, much of the project will be built on piles embedded in the lake bottom.The team from Griffin Dewatering Corporation used a newly developed system designed to screen out silt and reduce turbidity of discharge water.

“This is a highly unusual project because it is all artificial fill and dates back to the mid-1950s when it was installed. There were a lot of unknowns,” said Tom Minihan, Griffin Dewatering Corporation vice president and regional manager

Soils turned out to be relatively consistent.

“This whole pier out here was built in 1958. They brought in the sheet piling and filled with dredge from over on the Michigan side of the lake. It was a lot of pretty clean fill over the existing glaze,” said Andy Wigman, GPD|Gilbane project manager.

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