Dulles Metro: Guideway over highway in Tysons Corner

Drivers in Tysons Corner will soon see big equipment in the sky when crews build the aerial guideway that will carry Metrorail trains along portions of Routes 123 (Chain Bridge Road), 7 (Leesburg Pike) and the Dulles Connector Road (Route 267).

Huge pieces of equipment, known as trusses, will be used to lift large concrete segments into the air to create several miles of the aerial guideway spans in Tysons Corner. The first truss will extend over the Dulles Connector Road overpass at Route 123. Not only will this work be eye-catching, it requires occasional single-lane closures of Chain Bridge Road. Flagmen will be at the site to direct traffic. Drivers and pedestrians are encouraged to use extreme caution in this area during the coming months. Aerial construction will soon take place at other locations along Routes 123 and 7.

The Dulles Metrorail project is moving right along in the Tysons Corner area, and residents and commuters should be aware of changing traffic patterns and construction equipment. This spring, there is much activity in the following areas:

• Eastbound Route 7 where the service roads and mid block left turns have been eliminated
• Route 123 and Tysons Boulevard, where the Tysons Central 123 Station is under construction
• Route 123 and the Dulles Toll Road, where aerial guide way spans are being erected
   

Read the latest Dulles Metrorail Newsletter here.