Pipe Fabrication

Dakota Access Pipeline Project

Dakota Access Pipeline Project

Scope

Michels constructed 379 miles of 30-inch pipeline on three spreads. Spread 4: 60 miles in Iowa and 67 miles in South Dakota, Spread 5: 124 miles in South Dakota, Spread 6: 82 miles in South Dakota and 46 miles in North Dakota. Construction of DAPL was challenging due to an accelerated 6-month construction window. During peak operations, Michels utilized more than 2,000 people and 1,300 pieces of heavy equipment.

In addition to traditional mainline construction, Michels completed 14 horizontal directional drills (HDD), custom fabricated facilities; built three pump stations; and performed heavy civil and foundations work. HDD was used to trenchlessly build the pipeline under wetlands, creeks, cliffs and rivers totaling 7.5 miles. After preparing the right-of-way and stringing the pipe, Michels completed and tested more than 9,000 welds in the field. An additional 2,300 welds were completed and tested in Michels fabrication shop.

Weeks prior to construction started, Michels HSE personnel were on hand to meet with local fire, police and sheriff's departments, hospital staff and municipal officials. During construction approximately 15 HSE members handled safety orientations on three spreads.

  • Michels completed 14 horizontal directional drills (HDD), custom fabricated facilities; built three pump stations; and performed heavy civil and foundations work.

Projects

Pump station #34 required the installation of 146 drilled shafts to establish the foundation for the station concrete pads and pipe supports.

Pipe Fabrication

Pump Station 34

Oklahoma

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Pump Station 34

Michels managed and constructed the piping, mechanical scopes and pump installation of the Delavan Pump Station for Enbridge.

Pipe Fabrication

Delavan Pump Station

Wisconsin

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Delavan Pump Station

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