majorprojects

1810 Transmission Line Upgrade Project

Eversource is making infrastructure improvements to strengthen the reliability of our system and ensure customers in the Bristol and Southington, Conn. area have reliable power to meet their energy needs - meeting national and regional reliability standards.

The 1810 Transmission Line Upgrade Project traverses 3.5 miles on existing transmission line rights-of-way through Bristol and Southington. Eversource is replacing 14 existing structures, reinforcing 10 existing structures, and re-wiring 3.5 miles of the existing 115-kilovolt (kV) transmission line.  In addition, existing equipment would be upgraded at the Southington Substation, within the existing fence line.

Keeping the lines of communication open is an important part of our work in your community. Regular updates will be made to this site, as appropriate.

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Project Facts:

  • Route ​length: Approximately 3.5 miles
  • Location: Bristol and Southington, Connecticut
  • Line ​voltage: 115,000-volt (115-kV) overhead transmission line
  • Substation: Upgrades at the Southington Substation, Belleview Avenue, Southington, Conn.
  • Siting ​review ​by: ​The Connecticut Siting Council (CSC)

Estimated Timetable (Subject to Change):

  • Connecticut Siting Council (CSC) Petition ​filing: November 2015
  • CSC ​Approval: January 25, 2016
  • Start of ​construction: ​June 2016
  • Estimated ​in-​service ​date: ​December 2016
  • Completion of restoration: Summer 2017

CONNECTICUT SITING COUNCIL PETITION

Involving the public and municipal leaders is an important part of the project’s planning process. For an electric transmission line project, such as the 1810 Transmission Line Upgrade Project, filing a Petition with the Connecticut Siting Council is part of the regulatory review process, as defined by the Connecticut state statutes.

On January 25, 2016, the CSC voted to approve the 1810 Transmission Line Upgrade Project.

To learn more about the siting process, visit the CSC website.

Overhead Line Construction

Construction of the 1810 Transmission Line Upgrade Project began in June 2016. Construction is occurring in two sections, the southern section, which consists of replacing existing structures and installing new line, and the northern section, which consists of reinforcing existing structures and installing new line.

Southern Section

Southern portion of the 1810 transmission line.

Work in the southern section of the project typically, but not always, will occur in the following sequence:

  1. Creating work and storage areas
  2. Right-of-way clearing
  3. Access road and work area preparation
  4. Foundation installation
  5. Structure installation
  6. New line installation
  7. Existing structure removal
  8. Restoration

Northern Section

Northern section of the 1810 transmission line.

Work in the northern section of the project typically, but not always, will occur in the following sequence:

  1. Limited vegetation removal
  2. Access road and work area preparation
  3. Existing structure modifications
  4. Existing line removal
  5. New line installation
  6. Restoration

Work Hours

Hours of construction will typically be 7 a.m. through 7 p.m., Monday through Saturday. On rare occasions, due to unforeseen weather or other circumstances, the work day may be extended or work may be performed on a Sunday. 

Communications & Public Outreach

Beginning with municipal briefings and community outreach efforts related to the 1810 Transmission Line Upgrade Project, we have made a concerted effort to engage town officials, residents, businesses, and other stakeholders to inform, answer questions, and listen to concerns about the ​project.

As work proceeds into and throughout construction, we will continue these outreach efforts.

CONTACT INFORMATION

For more information about the 1810 Transmission Line Upgrade Project, send an email to TransmissionInfo@eversource.com or call 800-793-2202.