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Seaport Transmission Line Relocation Project

Work on the Seaport Transmission Line Relocation Project is complete. We thank for your patience as we completed this critical project.

Why Did We Do This Project?

The project will help support economic growth and ongoing redevelopment projects throughout the Boston Seaport district, including the long-planned reconfiguration of public streets like the new alignment of Northern Avenue.

This was in collaboration with local real estate firm WS Development, who asked us to relocate the underground transmission lines to allow for construction of new buildings.

Where Was The Work Done?


We relocated approximately 700 linear-feet of existing underground 115-kV transmission lines.

The location of the transmission lines beneath a parking lot have been relocated into new conduit and laid beneath the revised alignment of Northern Avenue.

When Was The Work Done?

  • Start of construction: September 2020
  • In-service date: February 2022

About this project

  • Route length: Approximately 700 linear-feet
  • Line voltage: 115,000-volt (115-kV) underground transmission line
  • Permits reviewed by: City of Boston

Have Questions?

Keeping the lines of communication open is an important part of our work in your community.

For more information about this project, please call the project information hotline at 1-833-836-0302 or email