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Mystic to Woburn Line Project

Why Are We Doing This Project?

This project will improve reliability and address the growing need for electricity in the area.

Where Is This Work Being Done?

This project includes a new 115-kilovolt (kV) underground transmission line that will connect Eversource’s Mystic Substation in Everett and Eversource’s Woburn Substation.

The line will extend approximately 8 miles between two existing substations, passing through Everett, Boston (Charlestown), Somerville, Medford, Winchester, and Woburn. The project also includes improvements within the existing fence lines of the Woburn and Mystic substations.

Information about the project is also available in Spanish, Portuguese and Haitian Creole.

map_mystic_woburn_project

About This Project

  • Route length: Approximately 8 miles
  • Line voltage: 115,000-volt (345-kilovolt [kV]) underground transmission line
  • Siting review by: EFSB

Traffic Management Plans

Working in consultation with town officials, we developed Traffic Management Plans (TMPs) for the construction of the Mystic to Woburn Line Project.

The TMPs include conditions specific to routing by the Energy Facilities Siting Board (EFSB) in its decision, a detailed site plan showing underground line location, hours of construction and area-specific traffic controls. All TMPs are subject to change and may be updated often.

Due to size, TMPs may take extra time to open/download.

When is the Work Being Done?

  • Start of construction: July 2017
  • Projected in-service date: First Quarter 2024

*subject to change

Construction Updates

We are committed to keeping neighbors, businesses and community members informed on project activities during construction. The schedule may change due to weather or other unexpected circumstances.

We take every safety precaution while working in local communities, and all people working on the construction carry proper identification. 

This work is not expected to interrupt electric service to homes or businesses.

Boston | Charlestown

Week of February 19

Transmission Activities

  • The transmission line is expected to be energized over the weekend. The project team thanks you for your patience and support throughout the project life cycle.

General work hours are Monday through Friday between 7 a.m. and 5 p.m.

As work activities continue, the police department may modify the traffic management plans based on their judgement and expertise. Please exercise caution when approaching active work areas to minimize risks to personal safety and to avoid interfering with construction.

Final restoration activities will occur when the project is complete.

Everett

Mystic Substation

Construction started at the Mystic Substation on Alford Street in late July 2017.

All construction activities are within and around the substation. No substation expansion is planned.

Medford

Week of February 19

Transmission Activities

  • The transmission line is expected to be energized over the weekend. The project team thanks you for your patience and support throughout the project life cycle.

 

Somerville

Week of February 19

Transmission Activities

  • The transmission line is expected to be energized over the weekend. The project team thanks you for your patience and support throughout the project life cycle.

Mystic Avenue

  • Crews have completed a crossing of the MBTA railway and are currently restoring the area.

General work hours are Monday through Friday between 7 a.m. and 5 p.m. Lane restrictions will be necessary and clearly posted in advance. Steel road plates will be used to safely secure excavated areas at the end of each work shift.

As work activities continue, the police department may modify the traffic management plans based on their judgment and expertise. Please exercise caution when approaching active work areas to minimize risks to personal safety and to avoid interfering with construction.

Final restoration activities will occur when the project is complete.

Winchester

Week of February 19

Transmission Activities

  • The transmission line is expected to be energized over the weekend. The project team thanks you for your patience and support throughout the project life cycle.

Woburn

Woburn Substation

All construction activities remaining on the Mystic to Woburn Line Project are within and around the substation fence. No substation expansion is planned.

Energy Facilities Siting Board

The Massachusetts ESFB Petition Filing is part of the regulatory review process, as defined by Massachusetts state statutes.

On March 9, 2017, we received approval from the EFSB to construct the project. See EFSB 15-03 Final Decision.

Community Outreach

Before starting construction in a community, we will mail start of construction letters to property owners along the route and conduct door-to-door outreach to nearby property owners, residents and local businesses.

Door-to-door outreach efforts for the project are currently limited to mailing letters and leaving door hangers without knocking (to avoid face-to-face communication). Full in-person communication efforts will resume when appropriate.

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 ProjectInfoMA@eversource.com.