Deep Foundations

Juneau Town Substation

Juneau Town Substation

Scope

Michels, one of North America’s largest deep foundations contractors, built a secant pile structure for an underground power substation at the base of a multi-use building in the city's historic Third Ward.

 

The project included construction of 214 30-inch secant shafts ranging in depth from 70 to 105 feet as well as installation of 200 10 3/4-inch driven pipe piles to an estimated depth of 120 feet. A waler system was placed and welded within the secant structure before it was excavated down 17 feet through contaminated soil and urban fill.

 

The contaminated soils required special inspection, handling and disposal to ensure no cross contamination was to occur. Following excavation,  Michels deep foundations contractor crew improved the entire subgrade with geotextile fabric and two feet of granular base.

 

The work was completed on a 140-foot by 140-foot site in downtown Milwaukee. Coordination and logistics were critical to the project's success.

  • Michels, one of North America's largest deep foundations contractors, built a secant pile structure for an underground power substation at the base of a multi-use building in the city's historic Third Ward.
  • The project included construction of 214 30-inch secant shafts ranging in depth from 70 to 105 feet as well as installation of 200 10 3/4-inch driven pipe piles to an estimated depth of 120 feet.
  • A waler system was placed and welded within the secant structure before it was excavated down 17 feet through contaminated soil and urban fill.
  • The contaminated soils required special inspection, handling and disposal to ensure no cross contamination was to occur.

Projects

Michels built 458 secant piles and 100 caissons in 90 days for a 10-story, 600,000-square-foot building on the site of the new McDonald's corporate headquarters.

Deep Foundations

110 N Carpenter

Illinois

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110 N Carpenter

Deep Foundations

Yesler Terrace

Washington

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Yesler Terrace

Michels scope of work is to install 242 drilled shafts to support the piers for anew bridge. The installation of the drilled shafts was completed with the simultaneous use of up to four drill rigs. Utilizing barges, 233 drilled shafts were installed in the river. Michels crews also installed 7-foot and 10-foot permanent steel casing into bedrock for each shaft.

Deep Foundations

I-74 Mississippi River Bridge

Illinois

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I-74 Mississippi River Bridge

Michels installed 857 H-piles 60 feet deep to bedrock for a deep foundation system for the R1VER project, a mixed-use waterfront development.

Deep Foundations

R1VER

Wisconsin

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R1VER

Michels performed the removal and replacement of walkway and pier structures along the eastern extent of the De Pere Dam.

Deep Foundations

De Pere Dam Walkway Replacement

Wisconsin

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De Pere Dam Walkway Replacement

Michels was contracted to design and install secant shafts as temporary earth retention to allow for the excavation of approximately 71 feet below grade to install a new pump station.

Deep Foundations

Pump Station 4 Reconstruction

Illinois

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Pump Station 4 Reconstruction

Quality means doing it right
when no one is looking.

Henry Ford

We do that.

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