Grading & Excavations

Wahpeton Slurry Trench

Wahpeton Slurry Trench

Scope

Michels constructed a 1,200-foot slurry trench near a riverward toe of a levee. The slurry trench varied in depth from 22 to 25 feet. The trench was needed to address concerns that high water pressure on one side of the levee coupled with groundwater traveling under it would compromise the integrity of the levee. Michels used an extended-reach hydraulic excavator to dig the trench. A mixing pit was set-up nearby. Trucks hauled the spoils to the mixing pit where an excavator and bulldozer were used to mix and fold tightly controlled percentages of water, bentonite and existing soil. This created an impervious backfill of material. The backfill then was hauled back and placed into the trench to create a pliable and waterproof barrier through which groundwater could no longer migrate. Laboratory tests confirmed Michels' completed work far exceeded project requirements.

Projects

Michels performed a project consisting of the removal of the Alderwood Dam Bridge including the primary and secondary spillways, removal of organic muck lake bottom soils, and removal of the existing asphalt roadway.

Grading & Excavations

Alderwood Dam Bridge

Wisconsin

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Alderwood Dam Bridge

Michels performed heavy civil earthwork, concrete installation and storm sewer construction for two crossovers linking a taxiway with a runway.

Grading & Excavations

Dane County Airport Reconfiguration

Wisconsin

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Dane County Airport Reconfiguration

Michels performed extensive work to turn an 18-acre open field into a site suitable for construction of a large warehouse, parking lot and a storm water pond.

Grading & Excavations

Alliance Laundry Systems Distribution

Wisconsin

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Alliance Laundry Systems Distribution

Michels excavated more than 166,000 lineal feet of 3-4 foot deep trenches for 16 solar farm sites at various locations throughout Minnesota.

Grading & Excavations

Aurora Solar

Minnesota

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Aurora Solar

Michels constructed a temporary earth retention system, excavated the work area, and installed 218 micro piles under Milwaukee City Hall.

Grading & Excavations

Milwaukee City Hall Foundation Restoration

Wisconsin

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Milwaukee City Hall Foundation Restoration

Michels performed site preparation for a new storm water detention basin.

Grading & Excavations

North 30th Street Wet Weather Relief

Wisconsin

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North 30th Street Wet Weather Relief

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Georg Wilhelm Friedrich Hegel

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