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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Lake Country Trail – Oconomowoc

Due to the restoration efforts and replacement of the poles and wires, portions of the Lake Country Trail from E. Jefferson Street to Valley Road in Oconomowoc will remain closed throughout the fall and winter. Your patience during ATC’s transmission line rebuild project is appreciated. We know the duration of the trail closing can be a disappointment to […]

Cooney-Summit 138-kV Rebuild Project

Project overview The Cooney-Summit 138-kV Rebuild Project will replace switches at the Cooney Substation and rebuild the Cooney-Summit transmission line to replace aging equipment that is approaching the end of its lifespan. This line also requires additional capacity to support new solar generation planned in the region. Rebuild projects help meet current and future electricity […]

Darien and Paris Solar Network Upgrade Project

Project overview American Transmission Co. is upgrading its transmission line infrastructure to support the Darien Solar Energy Center in Rock and Walworth counties and the Paris Solar-Battery Park in Kenosha County. The electric modifications include: Equipment upgrades to and expansion of the existing Paris Substation property owned by We Energies in the town of Paris Modifications of existing transmission […]

Howards Grove-Erdman Project

Project overview American Transmission Co. plans to construct a new 6.6-mile 138,000-volt high-voltage transmission line to ensure electric reliability in Sheboygan County and the surrounding area. The electric modifications for the project include: Constructing a new 6.6-mile single circuit 138-kV line from the Howards Grove Substation near the village of Howards Grove to the Erdman […]

Barneveld Military Ridge Interconnection Project

Project overview ATC has received state regulatory approval to construct a new 69,000-volt electric transmission line along U.S. Highway 18/151 from the Hooterville Substation, just west of the village of Barneveld, Wis. to County Trunk Highway JG, south of the village of Mount Horeb. This portion of the proposed line would share the right-of-way and transmission structures with the forthcoming Cardinal-Hickory Creek Transmission Line Project. No new right-of-way is anticipated. As […]

Badger Hollow Network Upgrades Project

Project overview American Transmission Co. is constructing new electric transmission line infrastructure to connect with the Badger Hollow Solar Farm generation facility in Iowa County, Wis. The electric modifications include: Expanding the Highland Substation in the town of Eden. Constructing a new double-circuit 69,000-volt transmission line south from the Highland Substation to connect with line Y-138 in […]

Sturgeon Bay Submarine Cable Replacement Project

Project overview Wisconsin’s lower Door County and upper Door County have been connected electronically for decades by a  69,000-volt submarine transmission line. This connection is critical to electric reliability in the Door County peninsula. ATC will establish a new 69,000-volt circuit under the Sturgeon Bay Ship Channel, approximately one half mile in length. Project need […]

Auburn – Barton – St. Lawrence Rebuild Project

Approximately 18 miles of 138,000-volt transmission line in Washington and south Fond du Lac counties needs to be rebuilt to serve the electric load in the area more effectively. The majority of the lines have reached the end of their useful life, and replacing them will enhance electric reliability and help meet the current and […]

Bayport – Pioneer Rebuild Project

Overview Approximately 21 miles of 69,000-volt transmission line north of Green Bay, Wis., needs to be rebuilt and upgraded to 138-kV to serve the electric load in the area effectively and reliably. The 1910s-vintage lattice structures and wires have reached the end of their life cycle and will be replaced between the Bayport Substation in […]

Straits Cable Replacement Project

Project overview Michigan’s Upper Peninsula and lower Michigan have been connected electrically for decades by two underwater 138,000-volt transmission lines, comprised of six cables. These connections are critical to electric reliability in the eastern U.P. and northern lower Michigan. ATC has removed the six underwater cables and re-established two new 138-kV circuits in the Straits, […]