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UCMP Hartford

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Why Are We Doing This Project?

As part of our ongoing commitment to deliver reliable energy and superior service, we are replacing two existing 115-kilovolt (kV) underground transmission lines in the Hartford area.

These two existing transmission lines, installed in 1974, are past their expected operating life of 40 years and the material is no longer being widely produced by manufacturers.

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Where Is This Work Being Done?

The 1704 underground transmission line runs from the Southwest Hartford Substation to South Meadow Substation, and the 1722 line runs from Southwest Hartford Substation to Northwest Hartford Substation.

*Click map to enlarge

Construction and Traffic Updates

This work will not interrupt your electric service, and all people working on this project are Eversource-approved contractors who carry proper identification.

Schedules are subject to change.

Work being done week of July 6

Work hours are 7 a.m. to 5 p.m., Monday through Friday. Locations and hours are subject to change based on weather and other unforeseen circumstances.

Underground Construction

Activities related to vault and duct bank installations will take place at the following locations. Temporary street closure and parking restrictions may be in place, roads are open to local traffic only and pedestrian traffic has shifted. Please pay attention to posted signage.

  • Whitney Street between Elizabeth Street and Fern Street
  • South Whitney Street between Farmington Avenue and West Boulevard
  • South Whitney Street between Capitol Avenue and Park Street
  • Park Street between Bulkeley Avenue and South Whitney Street
  • South Whitney Street and Warrenton Avenue intersection
  • Park Street and Bulkeley Avenue intersection
  • Park Street and South Whitney Street intersection

Traffic Management

Northbound lane on Whitney Street is closed (opened to local traffic only). Southbound late open. 

  • Whitney Street between Elizabeth Street and Fern Street

Southbound lane on South Whitney Street is closed (opened to local traffic only). Northbound lane open.

  • South Whitney Street between Farmington Avenue and West Boulevard 
  • South Whitney Street between Capitol Avenue and Park Street

Alternating one-way traffic pattern controlled by a flagger or police officer

  • Park Street between Bulkeley Avenue and South Whitney Street 

South Whitney Street and Warrenton Avenue intersection

Park Street and Bulkeley Avenue intersection:

Park Street and South Whitney Street intersection

See the latest update in Constant Contact.

        About this project

        • Route length: 7 miles
        • Line voltage: 115 kilovolts (kV)
        • Siting review by: Connecticut Siting Council (CSC)

        When Is The Work Being Done?

        • Petition filing to CSC: December 29, 2023
        • CSC filing decision: June 2024
        • Start of construction: April 2025
        • Construction completion: Mid-2027*
        • Commissioning: Late 2027*
        • Project restoration: Mid-2028*

        *Subject to change, pending necessary approvals

        Community Outreach

        We are committed to engaging city officials, residents, businesses, community groups and other interested stakeholders about the project through meaningful engagement. Our team strives to incorporate local feedback as feasible.

        Project team members will remain engaged with the community to provide schedule updates and address questions and concerns. Information is available in Spanish and other languages upon request.

        Have Questions?

        Keeping the lines of communication open is an important part of our work in your community.

        For more information, please call the transmission project information hotline at 1-800-793-2202 or email ProjectInfo@eversource.com. Messages left on the project information hotline will be returned by project staff in a timely manner.