Dominion Virginia Power Proposed Transmission Line Project

Dominion Virginia Power has approached the City of Alexandria regarding Dominion's proposal to construct a new 230-kilovolt underground transmission line between Alexandria and Arlington in the vicinity of Jefferson Davis Highway and Potomac Yard.

Page updated on Sep 29, 2017 at 3:44 PM


The project would add and upgrade equipment at the existing switching station on E. Abingdon Drive in Alexandria, and connect it to the Glebe Substation on S. Glebe Road in Arlington. The project does not involve the nearby former NRG Potomac River Generating Station, which is permanently closed.

In September 2014, the Underground Transmission Line and Substation Working Group held its first meeting to examine the effects of a proposal by Dominion Virginia Power to construct a new 230-kilovolt, underground transmission line between Alexandria and Arlington County.  The Working Group discussed its mission and received a presentation from Dominion Virginia Power on the need for the project.  Dominion Virginia Power considered six electrical alternatives as part of its proposed project.  Dominion's preferred alternative involves building a new transmission line between Dominion's Glebe Substation located in Arlington County, and Pepco's Station C Substation at the NRG site where the power plant was recently shut down.  Dominion Virginia Power identified nine preliminary alignments for the new transmission line connecting these two substations. Dominion indicated that they intend to file with the State Corporation Commission by the end of November for the project.  

The project is being phased to allow for utility relocation before the roadway construction.  The Phase I design has been completed, and construction will begin in Spring 2016 and will be completed in Fall 2016. Once Phase I construction is completed, existing utilities will be relocated before construction of Phase II begins. The utility relocation is expected to take 10-12 months and should be completed in Summer 2017

The construction schedule is as follows:

  • Phase I Construction begins: Fall 2015 
  • Utility Relocation begins: Summer 2016
  • Phase II construction begins: Fall 2017 (Construction duration is 18 months)

The current plans can be reviewed at City of Alexandria City Hall, 301 King Street, Room 3000.   Property impact information is also available for your review.



Underground Transmission Line Working Group Meeting
October 19 at the Station at Potomac Yard (650 Maskell Street)

Dominion and the City will be providing an update on the project to include: presentation of the final alignment, discussion of impacts, overview of the proposed schedule and the next steps.

The UTLWG meeting will be held during the first hour, from 7 p.m. to 8 p.m.     

Afterward, Dominion Energy will hold an informational open house for the public from 8 p.m. to 9 p.m.  Informational exhibits will be on display and project team members will be available for questions.

June 2017

Residents and businesses may have recently noticed activity in the CSX Rail Corridor.  Dominion is drilling test holes for soil borings.  The work began last weekend (June 10) and will continue for up to six weekends.  The work hours are from 7 a.m. to 4:30 p.m. on weekends only.

Dominion continues to develop the SCC submission package and has advised the City that they are planning to file with the SCC in the fourth quarter of 2017. The memorandum below summarizes the most recent developments in the project. 

August 2016

The City, through its Underground Transmission Line Working Group, will continue to coordinate closely with Dominion Virginia Power to assess the options being presented to the State Corporation Commission and develop a list of possible public benefit compensation measures

July 2016

Dominion continues to work on the SCC submission package and has advised us that they are planning to file with the SCC in the fourth quarter of 2016.  They have sent a letter to the City summarizing the need for the project and provided a summary of the power flow modeling results:

May 2016

On Tuesday, May 10, 2016, City Council met to consider the recommendations regarding the Underground Transmission Line & Substation Working Group. City Council upheld the decision to oppose any above ground transmission lines connection Dominion Virginia Power's Alexandria substations.

Underground Transmission Line & Substation Working Group

The 11-member body was approved by City Council on June 21, 2014; and members were appointed by the City Manager, September 3, 2014. The Working Group will provide:

  1. Quality of life, economic, electric reliability, and environmental and transportation impacts associated with the proposed project and will make recommendations to staff, the City Manager, and City Council;
  2. Will be composed of a wide range of representatives from civic organizations in the communities possibly affected by the project, and representatives from several boards, commissions, and the business community


  • Jason Nestlerode, Chair 
    Del Ray Citizens Association
  • Elizabeth Chimento
    North Old Town Independent Citizens' Civic Association
  • Nathalie Simon
    Arlandria Civic Association
  • Ben Sylla
    Lynhaven Civic Association
  • Rick Cooper
    Northeast Civic Association
  • Elias Papasavvas         
    Potomac Yard Area
  • Kyle Winslow        
    Environmental Policy Commission
  • Catherine Glocker Poulin
    Recreation, Parks, & Cultural Activities Commission
  • Nancy J. Appleby
    Alexandria Chamber of Commerce
  • Judy Noritake
    Four Mile Run Joint Task Force 

Meeting Materials


Dominion Website

Background Information

News Releases


For additional information about the City's actions related to this issue, please contact:

Lisa Jaatinen, P.E.
Acting Division Chief
Transportation & Environmental Services (T&ES), Infrastructure & ROW Division

William Skrabak
Deputy Director
Transportation & Environmental Services (T&ES), Infrastructure & Environmental Quality (I&EQ)

For information on the Glebe-Potomac River project, contact Dominion Virginia Power or visit the Dominion Virginia Power 230KV Line Project website.