Dewatering

Casing Removals

Casing Removals

Scope

Michels Construction, Inc. performed casing removal on sections of natural gas pipe in Minnesota, Wisconsin and Kansas. The work sites in Minnesota and Wisconsin were wetlands, while the sites in Kansas were located in agricultural fields.

Crews first installed matting to access the sites, then located the pipeline to ensure depth of cover to pipe. Due to the depth of the pipe and the varying ground conditions, trench boxes were installed using a large excavator. Large dewatering pumps were used to expose the pipe casings that were to be removed. Once the casing was exposed, Michels Construction removed the existing casings using a plasma cutter. The pipeline coating was inspected for any damage and was repaired using tape wrap coating. After the coating was installed, crews removed the trench boxes and mats, the excavation was backfilled, and the site was restored.

  • Michels performed casing removal on sections of natural gas pipe in Minnesota, Wisconsin and Kansas. The work sites in Minnesota and Wisconsin were wetlands, while the sites in Kansas were located in agricultural fields.

Projects

Michels Dewatering group was tasked to design, install and operate a system to divert peak flows of up to 168,000 gallons per minute, or 242 million gallons per day, so that a pipeline could be open cut in dry conditions across the Conotton Creek.

Dewatering

Conotton Creek Diversion

Ohio

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Conotton Creek Diversion

Michels developed a diversion plan for Hay Creek to allow a pipeline crew to perform an anomaly dig to repair an imperfection of a high-pressure pipeline that crossed the creek.

Dewatering

Hay Creek Stream Diversion

Wisconsin

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Hay Creek Stream Diversion

Michels constructed an underground water retention cistern inside of an occupied apartment  building. Due to historic water levels in Milwaukee, WI, a parking garage had been underwater and inaccessible since March of 2019.

Dewatering

210 Water Street

Wisconsin

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210 Water Street

Michels designed a water diversion solution for the Little Calumet River for an anomaly dig. The river serves as a drainage canal for the area and can rise at least 4 inches in water elevation. As little as 1 inch of rain can substantially alter the flow of the river.

Dewatering

Little Calumet River Dewatering

Indiana

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Little Calumet River Dewatering

Michels dewatering and pipeline construction operations teamed up to isolate standing water and control groundwater in permeable soils to allow a pipeline joint to be repaired.

Dewatering

Anomaly Dig

Wisconsin

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Anomaly Dig

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