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Due to rapid growth and local comprehensive planning, Dominion Energy is placing a portion of an existing overhead 230 kilovolt (kV) electric transmission line underground and constructing a new substation source in the Tysons area of Fairfax County.
This project will underground an existing overhead transmission line between our Tysons Substation on Tyco Road to a new transition pole just south of the future Spring Hill Substation southwest of Leesburg Pike and Spring Hill Road in Fairfax County.
The 230 kilovolt (kV) line is approximately half-mile in length and is consistent with Fairfax County’s Comprehensive Plan and responds to 2019 undergrounding pilot legislation.
Important Update - September 2023
There will be increased construction activity along Vesper Trail this fall. From mid-September 2023 through the end of October 2023, crews will be crossing the trail throughout the day, and the trail will remain open. From November 1, 2023, through mid-February 2024, the trail will be closed.
Click here to see the most recent update postcard sent to the community.
Benefits
Timeline (View Full Timeline)
There are no planned service interruptions for this project
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