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Mystic to Golden Hills Reliability Project

As part of our everyday effort to deliver reliable energy, we completed replacing two, 345-kilovolt (kV) transmission lines with new cables in the communities of Everett, Malden, Melrose and Saugus, Mass.

A strong electrical transmission grid is vital to the safety, security and economic prosperity of the region. The transmission system serves a critical role to ensure that electricity flows with a high degree of reliability from wherever the power is generated to where power is needed.

The Mystic to Golden Hills Reliability Project spanned approximately 6 miles from the Mystic Substation in Everett, passing through portions of Malden and Melrose, to National Grid's Golden Hills Substation in Saugus.

Work included replacing two, aging, underground cables with new underground cables, and reusing the existing duct bank (a group of tubes to house electric lines). Reusing the duct bank allowed for a reduction in the amount of surface excavation, ultimately minimizing traffic disruptions.

Project Facts:

  • Route length: Approximately 6 miles
  • Cities: Everett, Malden, Melrose and Saugus, Mass.
  • Line voltage: 345,000 volts (345-kV)
  • Start of construction to replace the first line: Fourth Quarter 2019
  • In service date - first line: January 16, 2021
  • Start of construction to replace the second line: Fourth Quarter 2020
  • In-service date - second line: June 3, 2021 

Community Outreach

Eversource is committed to updating neighbors, businesses, and all community members about project activities. Before starting construction in a community, notifications will be mailed to all property owners within 300 feet of the project route. A Field Outreach Specialist will conduct outreach to nearby property owners, residents and local businesses informing them of the start of project work.

This project website will also be updated weekly, reflecting locations where crews will be working and the construction activities taking place. 

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. The project work will not interrupt electric service to homes or businesses.

Please keep in mind that the construction schedule may change due to weather or other unexpected circumstances.

Construction activities are completed in Everett.  Eversource personnel will be on site addressing final closeout items and intermittent activity will be visible over the next few weeks as crews wrap up minor tasks, associated with restoration.

Construction activities are completed in Malden . Eversource personnel will be on site addressing final closeout items and intermittent activity will be visible over the next few weeks as crews wrap up minor tasks, associated with restoration.

Construction activities are completed in Melrose.  Eversource personnel will be on site addressing final closeout items and intermittent activity will be visible over the next few weeks as crews wrap up minor tasks, associated with restoration. 

Construction activities are completed in Saugus. Eversource personnel will be on site addressing final closeout items and intermittent activity will be visible over the next few weeks as crews wrap up minor tasks, associated with restoration.

Traffic Management Plans

Working in consultation with town and state officials, including the Mass. Department of Transportation, Eversource develops a set of Traffic Management Plans (TMPs) for each section of the Mystic to Golden Hills Reliability Project prior to performing work in the street or sidewalks.

The TMPs illustrate detailed site plans, showing underground line locations, hours of construction, area-specific traffic controls and more.

Contact Information

For more information about the project, send an email to ProjectInfo@eversource.com or call 800-793-2202.