The Silver Line extension includes 11 new stations.
Phase 1 includes five stations along 11.7 miles. Four are in Tysons Corner and the fifth, which served as the temporary terminus, is on the eastern edge of Reston.
Trains approaching McLean Station
Tysons Corner Center station along Route 123
Trains entering Greensboro station along route 7
Train leaving Spring Hill Station
Wiehle-Reston East Station
Phase 1 Contractor
In March 2008, MWAA and Dulles Transit Partners signed a $1.6 billion fixed-price construction contract to build Phase 1, keeping the anticipated costs of the project to $2.6 billion. Construction began in March 2009. Phase 1 opened on July 26, 2014.
Phase 2 includes six stations along 11.4 miles from the Wiehle-Reston East Station to Ashburn. Locations are:
Reston Town Center Station
Aerial guideway approaching Dulles Station
Loudoun Gateway Station
Phase 2 Contractor
On May 14, 2013, the Airports Authority awarded a design-built contract for the major portion of Phase 2 to Capital Rail Constructors, a joint venture of Clark Construction Group and Kiewit Infrastructure South. A notice to proceed was issued on July 9, 2013. The contract includes systems, tracks, and stations.
On August 4, 2014, the Airports Authority awarded a $253 million design-build contract to Hensel Phelps Construction Company for the rail yard and maintenance facility which is being built on Dulles Airport property as part of Phase 2. Construction began in 2015.
Phase 2 opened November 15, 2022.
Most of the rail extension is in the median of the Dulles International Airport Access Highway and Dulles Toll Road, but the Silver Line alignment also serves Tysons Corner and Dulles Airport. The rail line leaves the Dulles Connector Road and travels along the northwest side of Route 123, through a tunnel at the intersection of Routes 7 and 123 and then westward in the median of Route 7 before rejoining the median of the Dulles Toll Road/Dulles Airport Access Highway.
The extension includes 11 Metrorail stations, a new rail yard on Dulles Airport property and improvements to an existing rail yard at the West Falls Church Station. This alignment was selected because it offered the highest ridership potential with the fewest impacts on residential areas and the natural environment.