Two amphibious excavators operate near a barge

Line 4 Rebuild

Michels rebuilt approximately 4,000 feet of a 69kV single-circuit transmission line in the Gulf of Mexico near Key West, FL destroyed by Hurricane Irma. Seven total concrete structures collapsed and needed to be replaced. Prior to beginning construction, Michels assessed the segment of line by both boat and helicopter, and developed a reconstruction plan with assistance of an engineering firm and approval of the customer. Once the 80- to 100-foot round spun concrete poles were framed and set, Michels enlisted a helicopter company to provide support for conductor installation and visual inspection of the line. After the wire was strung in, Michels performed all necessary testing, inspections, and inventory services and the line was energized. Michels finished by removing all of the damaged structures and conductor from the sea bed, including the remaining embedded pole bases and performing final restoration to the area.

Due to tides and currents, flexible modular barges capable of supporting more than 165,000 pounds in very shallow water were used to complete the work.

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