American Transmission Co. projects

Project website for a Wisconsin-based company that owns and operates the high-voltage electric transmission system that powers communities in portions of the Upper Midwest.

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ATC to host Rockdale-West Middleton pre-construction open house

Construction begins near Beltline/I-39 interchange in November

MADISON, Wis. – American Transmission Co. is continuing a multi-year public outreach process for the Rockdale-West Middleton Transmission Line Project with the second in a series of pre-construction open houses on Tuesday, Nov. 1, from 4 to 7 p.m. at the Sheraton Madison Hotel, 706 John Nolen Dr.

Work on the 32-mile, 345-kilovolt electric transmission line project began in August 2011. Construction of the project will be completed in four segments (A through D). ATC representatives will be on hand to discuss construction activities for Construction Segment C, which runs approximately nine miles along the Beltline from the Beltline/I-39 interchange to Verona Road. Work on Construction Segment C will be conducted from east to west and is expected to conclude in August 2012. The entire line has an anticipated in-service date of summer 2013.

“Residents who may be affected by construction and members of the public are welcome to attend this pre-construction open house,” said Sarah Justus, ATC local relations manager. “These open houses provide an opportunity for people to learn what to expect in terms of equipment, timing, vegetation management and appearance of the lines,” said Justus.

ATC first identified the need for the project in 2002. In 2003, the project need was independently reviewed by the Energy Initiative, a group of Wisconsin utilities, public advocacy organizations, environmental groups and local stakeholders. The group evaluated the need for new electric transmission lines and the feasibility of alternatives in meeting Dane County’s present and future electric needs.

After more than five years of public involvement and regulatory review, ATC received approval from the Public Service Commission of Wisconsin in June 2009 to construct the $219 million project. ATC will build the new line through Dane County between the towns of Christiana and Middleton along a route that generally follows the Beltline and existing utility rights-of-way.

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ATC is a Wisconsin-based company that moves energy along the regional electric grid in parts of Wisconsin, Michigan, Minnesota and Illinois, serving more than 5 million electric consumers. We are experts at what we do: planning, maintaining, operating and protecting the grid. As the electric industry moves toward renewable generation sources, we are transforming our system to continue delivering energy reliably and safely. We proudly support STEM education programs that empower youth with the skills needed to succeed in tomorrow’s energy workforce. For more information, visit and follow us on LinkedIn and X (Twitter).