Background on the Dulles Rail Project 

The Metropolitan Washington Airports Authority (MWAA) is constructing a 23-mile extension of the existing Metrorail system, which will be operated by the Washington Metropolitan Area Transit Authority (WMATA) from East Falls Church to Washington Dulles International Airport west to Ashburn. The project is being built in two phases. Phase One will run from East Falls Church to Wiehle Avenue in Reston. Phase 2 will run from Wiehle Avenue to Ashburn in eastern Loudoun County. View the route map (PDF).

Loudoun County has been a longtime supporter of the extension of Metrorail to Dulles International Airport and Loudoun County. The county has been actively planning for the extension of Metrorail to the Dulles Corridor for more than 15 years. Metrorail expansion to Route 772 first appeared in Loudoun County’s General Plan more than 15 years ago and transit-related policies were first coordinated with the Countywide Transportation Plan in 1996.


The purpose of Dulles Metrorail is to provide high-quality, high-capacity transit service in the Dulles Corridor. The extension of Metrorail will increase the vitality of the Dulles Corridor, reduce travel time between the Dulles Corridor and downtown Washington D.C, offer a viable alternative to vehicular traffic, and support future transit-oriented development along the corridor. More background information on the project is available in presentations made to the Board of Supervisors in March 2011:

Past Progress Reports to the Board of Supervisors

Get the latest from the Dulles Corridor Metrorail Project.

Board Holds Work Sessions & Public Outreach Sessions

The Loudoun County Board of Supervisors held a series of work sessions and public information sessions in 2012 on the Dulles Rail project prior to the Board's final decision on July 3, 2012, on whether to commit to the project. The schedule and the topics for each session are listed.

Documents Available for Review

In addition to documents on the website, hard copies of documents related to the Dulles Rail project are available for public review, by appointment, in the Loudoun County Department of Transportation and Capital Infrastructure, located at:

101 Blue Seal Drive SE
Suite 102
Leesburg, VA 20175

Anyone who would like to schedule an appointment to view the documents should call 703-737-8624.