Grading & Excavations

Milwaukee City Hall Foundation Restoration

Milwaukee City Hall Foundation Restoration

Scope

Michels constructed a temporary earth retention system, excavated the work area, and installed 218 micro piles to depths between 25 to 45 feet around existing wooden piles on Milwaukee City Hall's north end which has settled 2 inches since 1986. The structure was initially supported by more than 2,500 untreated wooden piles driven into a filled tamarack swamp. A drill attached to an excavator at street level was used to build most of the exterior piles. About 400,000 pounds of cement was mixed at street level by Michels' on-site batch plant and pumped into the micro piles to form cement columns. All of the work was done at night to avoid interfering with City Hall operations on a small site in a congested area.

Projects

Michels designed and built an Earth Retention System to provide global stability for a recreational and ski hill that had been experiencing multiple slope failures.

Earth Retention Systems

Mont Du Lac

Wisconsin

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Mont Du Lac

Michels' system took the weight of Colman Hall at the slope and put it onto 18 micropiles that extended 60 feet below grade.

Earth Retention Systems

Colman Hall

Wisconsin

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Colman Hall

Michels Corporation completed a deep foundations package for a rail bridge to carry the Rock Island Metra tracks over tracks used by Amtrak and freight trains, eliminating at grade crossings.

Earth Retention Systems

Metra Flyover Bridge

Illinois

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Metra Flyover Bridge

Michels performed inbound and outbound structure construction.

Earth Retention Systems

Lake Shore Drive

Illinois

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Lake Shore Drive

Michels was part of an integrated joint venture responsible for executive management field supervision and engineering on the Central Puget Sound Regional Transit Authority's University Link Light Rail Extension Project.

Earth Retention Systems

University Link Light Rail U230

Washington

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University Link Light Rail U230

Nothing great in the world has
been accomplished without passion.

Georg Wilhelm Friedrich Hegel

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