ATC: Transmission line construction for Bunker Hill-Blackbrook project to begin in September

American Transmission Company (ATC) on July 19 filed with the Public Service Commission of Wisconsin a quarterly progress report for the period April 1 through June 30 for the Bunker Hill-Blackbrook (M13) Project, noting that engineering design for the transmission line and substation components of the project is complete.

As TransmissionHub reported, the commission last July 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 PSC 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 July 19 filing, ATC said that right of way (ROW) clearing between the Bunker Hill and Blackbrook substations is about 92% complete. Remaining clearing and transmission line construction is planned to begin in September, the company noted.

Substation construction is planned to begin in 3Q17, ATC said, adding that environmental monitoring began with the start of ROW clearing.

Expenditures as of June 30 were about $5.5m, or about 19%, of the authorized total of about $29.7m, the company said.

About Corina Rivera-Linares 3286 Articles
Corina Rivera-Linares was TransmissionHub’s chief editor until August 2021, as well as part of the team that established TransmissionHub in 2011. Before joining TransmissionHub, Corina covered renewable energy and environmental issues, as well as transmission, generation, regulation, legislation and ISO/RTO matters at SNL Financial from 2005 to 2011. She has also covered such topics as health, politics, and education for weekly newspapers and national magazines.