This project, which was placed in service summer 2007, involved upgrading and rebuilding aging 69- and 138-kilovolt transmission lines in Oconto and Marinette counties in Wisconsin, and Menominee and Dickinson counties in Michigan. This line helps to correct chronic problems on the ATC system related to the limited ability to transfer electricity between northeastern Wisconsin and the Upper Peninsula of Michigan.

Plains - Amberg line - This 22-mile, 138-kV line has been rebuilt using a temporary bypass line that will be constructed in the existing right-of-way. The line uses a corridor that begins at the Plains Substation in Quinnesec, Mich., and runs through the towns of Niagara, Pembine, Beecher and Amberg in Marinette County, Wis.
West Marinette - Amberg line - This 45-mile line was rebuilt within the existing right-of-way, and the portion of the line between West Marinette and White Rapids substations was upgraded to 138-kV operation. The line runs along a corridor that passes through the towns of Amberg, Wagner, Porterfield and Peshtigo in Marinette County, Wis., and also passes through the towns of Lake, Menominee, Holmes and Mellen, and the City of Menominee, all in Menominee County, Mich.
Amberg - Stiles line - Completion of the West Marinette - Amberg line facilitates the rebuilding of the Amberg - Stiles 138-kV line without the use of a temporary bypass line.

At a glance
Communities affected: Towns of Amberg, Beaver, Beecher, Middle Inlet, Niagara, Pembine, Peshtigo, Porterfield, Pound, Stephenson, Wagner and Wausaukee in Marinette County, Wis.; Towns of Lena and Stiles in Oconto County, Wis.; and Towns of Holmes, Lake, Mellen and Menominee and the City of Menominee, all in Menominee County, Mich. Benefits extend beyond these communities due to the enhanced transfer capability to the Upper Peninsula.
Length of line: About 110 miles
End points: Plains Substation (Quinnesec, Mich.) to Stiles Substation; Amberg Substation to Menominee Substation
Voltage: 138 kilovolts
Status of project: In service
In-service date: Summer 2007

Project contact:, e-mail David Hovde or call 1-866-899-3204, ext. 6550.