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This construction project will improve the transmission system in the Boston area so customers will have reliable power to meet their growing energy needs.

At Eversource, we're always working to serve you better. For the West Roxbury to Needham Reliability Project, Eversource proposes to separate the overhead transmission lines on existing double-circuit towers on the right of way (power line corridor) between substations in the Boston neighborhood of West Roxbury and Needham, Mass.

The project route will cross about five miles between the Baker Street Substation in West Roxbury and the Needham Substation in Needham. The separation work will involve relocating 1.6 miles of the line onto new sets of structures on the rights of way in Boston, Dedham and Needham.

In Needham, the newly separated line will exit the overhead right of way on Valley Road and transition to underground. The underground line will then extend about 3.5 miles on the preferred route from Valley Road to Needham Substation.


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Project Facts:

  • Route length: Approximately 5.1 miles
  • Towns: Boston, Dedham, and Needham, Mass.
  • Line voltage: 115,000-volt (115-kV) overhead and underground transmission line
  • Siting review by: Energy Facilities Siting Board (EFSB)

Estimated Timetable (subject to change):

  • Petition filing: June 2016
  • Public comment hearing conducted by the Energy Facilities Siting Board: September 27, 2016
  • Project design and engineering: Ongoing
  • Public outreach and consultation with municipal authorities: Ongoing
  • Start of construction: Second Quarter 2018 (pending approval)
  • Estimated in-service date: June 2019


This project requires approval from the EFSB. The EFSB siting process includes both public and evidentiary hearings. The public and other interested stakeholders are given the opportunity to participate in the siting process through the EFSB-sponsored public hearing. Owners of property bordering on and near the project will be informed of the public hearing dates and are encouraged to participate.

The regulatory process also requires approval from local, state and federal permitting agencies, including environmental agencies. To learn more about the siting process and how to participate, visit the EFSB website.


On June 15, 2016, Eversource submitted a Petition to the EFSB for approval to construct the project. You can visit the EFSB's file room and enter "EFSB16-02" in the "Docket Number" box at the top left of the page to view the petition and related information.


We are engaging town officials, residents, businesses, community groups and other stakeholders through municipal briefings, a public open house and meetings to answer questions and listen to concerns about the project.

We will continue community outreach efforts as the project proceeds through the siting process and, if approved, into construction.


Keeping the lines of communication open is an important part of our work in your community. For more information about the project, send an email to or call 800-793-2202.