American Transmission Co.

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Construction complete for Port Washington-Saukville Rebuild Project

Transmission modifications strengthen regional electric reliability, operating flexibility

 

PEWAUKEE, Wis. – ATC has completed construction of the Port Washington-Saukville Rebuild Project. This project included a 4.8-mile, 138,000-volt transmission line rebuild, along with modifications at the Port Washington Substation in Port Washington, Wis., and Saukville Substation in Saukville, Wis.

Initially identified in ATC’s 10-Year Assessment in 2009, this $25 million infrastructure investment strengthens electric transmission reliability in the southeast Wisconsin area and improves operating flexibility under certain system conditions. The project was officially placed into service Dec. 18, 2021.

The prior H-frame structures were replaced with 41 galvanized steel single-pole structures and new wires, transitioning the line from a single circuit to a double circuit. The replacement process took place in phases. ATC’s contractor, M.J. Electric, began construction in spring 2020 to coincide with system and operational maintenance activities. 

“In addition to new wires, we also installed fiber optic wire, which will provide high-speed data to our system operations center,” said Jon Meiers, senior project manager.

Substation work at the Port Washington Substation included the addition of a control house and perimeter fencing. A portion of the Saukville Substation also was upgraded, and line positions were changed.

Restoration along the right-of-way will initiate in the coming weeks and is expected to be complete this spring.

A map of the project can be viewed here.

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Formed in 2001 as the nation’s first multi-state transmission-only utility, American Transmission Co. is a Wisconsin-based company that owns and operates 10,081 miles of electric transmission lines and 582 substations in portions of Wisconsin, Michigan, Minnesota and Illinois. Our transmission network enables the movement of electricity produced from all forms of generation resources to areas where it is needed – helping to keep the lights on, businesses running and communities strong. Visit our website at www.atcllc.com.

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