American Transmission Company (ATC) on Oct. 15 submitted to the Public Service Commission of Wisconsin its quarterly progress report for the period July 1, through Sept. 30 for the company’s Bunker Hill-Blackbrook (M13) Project, noting that transmission line construction and restoration activities are complete in the rebuild section of the project.
Demolition of the old transmission line from the Bunker Hill and Blackbrook substation sites is also complete, the company said, adding that the final phase of transmission line construction will start later this year, with all work scheduled to be complete by next spring.
As TransmissionHub reported, the commission in July 2016 granted, subject to conditions, ATC’s application to build and place in service facilities for the project, which includes building a new substation; rebuilding the 115-kV M13 transmission line from the Bunker Hill switching station in Lincoln County, Wis., to the Blackbrook switching station in Langlade County, Wis.; uprating the 115-kV M13 transmission line from the Kelly substation in Marathon County, Wis., to the Blackbrook switching station; as well as retiring and removing the Bunker Hill and Blackbrook substations.
The route of the rebuild portion of the project begins at the Blackbrook substation in the town of Ackley, Langlade County, and follows the existing M13 line route west to the proposed Ackley substation in the town of Pine River, Lincoln County. The rebuild would take place adjacent to the existing M13 line and is 8.2 miles long, the commission added, noting that the route of the uprate follows the existing M13 route south from the proposed Ackley substation to the Kelly substation in the village of Weston, Marathon County.
In its Oct. 15 filing, ATC said that all substation construction activities have been completed, including the new Ackley substation, connected remote end substations, as well as demolition of the Bunker Hill and Blackbrook substation sites.
Environmental monitoring for the transmission line right of way and Ackley substation continues, ATC said, adding that all restoration activities are completed on the rebuild portion of the project. Environmental monitoring for the uprate portion will begin upon the start of construction, the company said.
Expenditures as of Sept. 30 were about $22.6m, or about 76%, of the authorized total of about $29.7m, ATC said.