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 proud to serve the neighborhoods where we work and live. For the West Roxbury to Needham Reliability Project, our crews are working 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 crosses about 4.5 miles between the Baker Street Substation in West Roxbury and the Needham Substation in Needham. The separation work involves 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 exits the overhead right of way on Valley Road and transitions to underground. The underground line will then extend about 3 miles 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)
  • Petition filing: June 2016
  • Petition approval by the EFSB: May 17, 2018
  • Start of construction: June 2018 
  • Project in-service date: March 27, 2021 


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. Public outreach and consultation with municipal authorities is ongoing throughout the project.

Please note that the project work will not interrupt electric service to homes or businesses. 

Work hours during construction will typically be 7 a.m. to 5 p.m., Monday through Friday, and 9 a.m. to 5 p.m. on Saturdays in non-residential areas. During the school year, work requiring detours along a school bus route will not start until 9 a.m., unless authorized by the municipality. 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. 

No work scheduled at this time. 
No work scheduled at this time.

No work scheduled at this time.


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.