Possum Point – Smoketown Electric Transmission Improvement Project

We are committed to continually reviewing and analyzing our energy infrastructure to provide the most safe and reliable electric service to our neighbors. It has become necessary for us to address two existing transmission lines that have been in operation for nearly 70 years.

Project Update

  • May 2019 - The project is about 60% complete. Construction should be complete by the end of fall 2019, with right of way rehabilitation to follow.
  • May 14-16, 2019 - Crews will remove wires from old structures spanning Route 1 in Dumfries. Traffic delays will occur in both directions from 10 a.m. to 1 p.m. between River Ridge Blvd. and Chesapeake Dr.
  • May 19, 2019 - Crews will remove wires from old structures spanning Interstate 95 in Dumfries. Traffic delays will occur in both directions from sunrise to 10 a.m. between exits 152A and 156.

Overview

Dominion Energy has an existing electric transmission corridor that runs from its Possum Point facility in Prince William County up through Dumfries and north into the Dale City area west of I-95. In this corridor, there are two 115 kilovolt (kV) electric transmission lines that exclusively serve three NOVEC substations which provide power to more than 11,000 NOVEC customers. The Virginia State Corporation Commission approved this project on February 5, 2018.

Purpose

The key purpose of this project is to replace old infrastructure. The 115kV lines were originally built in 1948 and 1954 on wooden poles. Although well maintained, it has come time to completely replace these old transmission lines before they become a reliability concern.

Benefits

  • Requires no new right of way
  • Replaces the lines consistent with current electrical and safety standards
  • Creates flexibility in the network to address potential future needs
  • New structures are generally comparable in height and location to the existing 230kV lattice structures

Maps

Construction access map – review where construction entrances will be built and how we plan to reach each structure.

Existing project map

Construction Activities

  Timeline Starting Point Ending Point
Phase 1 COMPLETE July 2018 - February 2019*
Dominion Energy’s Possum Point Switching Station
NOVEC’s Country Club Substation
Phase 2 and 3 February 2019 - August 2019* NOVEC’s Country Club Substation
NOVEC’s Smoketown Substation