As a result of continued economic growth in the area and a related demand for increased energy needs, we need to replace 7.25 miles of conductor, or wire, on an existing transmission line, with a new, stronger material capable of carrying a higher amount of electric current, or ampacity. This will strengthen system reliability and service. Because this new wire is made of different, heavier material than the existing one, we must also replace the structures that support the conductor.

The portion of the 230 kilovolt (kV) line to be rebuilt runs from just outside our Cannon Branch substation, south of Nokesville Road in Prince William County, through the City of Manassas, and terminates at our Clifton substation near Clifton Creek Drive in Fairfax County.

This is a partial rebuild of what will be a full transmission line running from our Clifton substation to our Winters Branch substation in Prince William County, near Prince William Parkway. Please visit our Cannon Branch-Winters Branch project page  for additional information on a new build of transmission line between those stations.

• View updated visual simulations (updated as of March 2023)

Clifton-Winters Branch Pre-Construction Video