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.

Browsing “Projects | American Transmission Co. projects - Part 5”

Sauk County

Increased capacity of 33 miles of existing transmission lines, upgraded six substations and built three new substations in cooperation with Reedsburg Utility and Wisconsin Power & Light.

Sauk City

With Sauk City Utilities, built a new electric substation on Phillips Street.

Port Washington-Saukville

Upgrade two 5-mile lines connecting Port Washington with Saukville Substation. Supports new units at the We Energies Port Washington Generating Station (Power Plant).


Upgrade of 11 miles of 69-kilovolt line between Portage and Montello.


With Plymouth Utilities, built a new substation and a 2.25 mile, 138-kilovolt line to serve Johnsonville Sausage plant expansion.


Rebuild/upgrade of 69-kilovolt and 138-kilovolt lines in Oconto and Marinette counties in Wisconsin, and Menominee and Dickinson counties in Michigan.

Paris-St. Martins

Upgrade of 17-mile transmission line between the Paris Substation in Union Grove and the St. Martins Substation in Franklin.

Oak Creek Power Plant Transmission Enhancements

Several upgrades to the existing transmission system have been made in conjunction with the power plant expansion.

North Lake Substation (Michigan’s Upper Peninsula)

Constructed the North Lake Substation to replace an existing Cedar Substation, which needs to be retired because of aging and obsolete facilities.

Laurium Rebuild

Rebuilt 13.8 miles of 69-kilovolt existing transmission line beginning near the Atlantic Mine Substation and terminating near the Osceola Substation.