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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: March 2024
The Vesper Trail is reopened to pedestrian traffic. Please be mindful that there may be construction activity in the area as the project is still ongoing.
Benefits
Timeline (View Full Timeline)
There are no planned service interruptions for this project
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