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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 4.5 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 miles on the preferred route from Valley Road to Needham Substation.


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Project Facts:

  • Route length: Approximately 4.5 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
  • Petition approval by the EFSB: May 17, 2018
  • Public outreach and consultation with municipal authorities: Ongoing
  • Start of construction: June 2018 
  • Estimated in-service date: June 2019


For an electric transmission line project, such as the West Roxbury to Needham Reliability Project, the Massachusetts Energy Facilities Siting Board (EFSB) Petition filing is part of the siting regulatory review process, as defined by Massachusetts state statutes.

On May 17, 2018, Eversource received approval from the EFSB to construct the West Roxbury to Needham Reliability Project. See the EFSB 16-02 Final Decision 5-17-18

Construction Updates

First, please know that Eversource takes every safety precaution while working in local communities, and that all people working on the construction project carry identification.

Eversource is committed to updating neighbors, businesses and the community about project activities, especially during construction. Please note that the project work will not interrupt electric service to homes or businesses.

Project construction will begin in June 2018 and is expected to be complete in mid-2019.

Work hours during construction will typically be 7 a.m. to 6 p.m., Monday through Friday, and 9 a.m. to 5 p.m. on Saturdays. Due to unexpected weather or other circumstances, the work hours may be extended or performed on a Sunday.

Police officers will be stationed at every major intersection where construction is taking place. 

Construction is expected to start in late June 2018.

Construction is expected to start in late June 2018.

Construction is expected to start in late June 2018.


Working in consultation with town and state officials, including the Mass. Department of Transportation (MassDOT), Eversource has developed a set of Traffic Management Plans (TMPs) for each section of the West Roxbury to Needham Reliability Project.

The TMPs include conditions specific to routing as made by the EFSB in its final decision. The TMPs illustrate detailed site plans, showing underground line locations, hours of construction, area-specific traffic controls, and more.

Please note, TMPs are subject to change and may be updated.


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.