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Under Construction

Dulles Connector Sound Walls

From Route 123 to I-66 in Fairfax County

Area Maps

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Project Photos

Project at a Glance

Begin Date

Est Completion Date
May 29, 2015

Lengths and Limits
Chain Bridge Road
to I-66
(3.96 miles)


Northern Virginia

Giles Njumbe, P.E.
Construction Manager
Chan Basnayake, P.E., PMP, CCM
Area Construction Engineer

About the Project

Sound walls are being constructed on both sides of the Dulles Connector Road/Route 267, between Chain Bridge Road/Route 123 and Interstate 66 (almost four miles) in Fairfax County. 

The sound walls will mitigate noise from Dulles Connector Road traffic and Dulles Metrorail, which has been constructed at-grade in the median and on elevated rail flyovers along the Dulles Connector Road. 

Work is being completed under two contracts:

1. Ground-mounted sound walls on the Connector Road in each direction from Chain Bridge Road to I-66 (UPC 98232)

Work began June 14, 2013. The contractor is Lane Construction Corporation.

Crews started on the southbound side first and have completed approximately 90% of the work. Northbound work has begun. The contractor has completed 90% of the sound wall construction on the southbound side. Currently, the contractor is working between Magarity Road and Chain Bridge Road on the northbound side of the Dulles Connector Road.

The contractor is also constructing sound barriers spanning the gap between Old Dominion Drive and the beginning of the existing wall on the I-495 southbound (Outer Loop) side. Work on this portion started January 30, 2015 and is expected to be completed by May 29, 2015.

2. Structure-mounted sound walls parallel to the bridges over Chain Bridge Road, Magarity Road and Pimmit Run (UPC 103668)

Work began on Oct. 28, 2013. Fort Myer Construction Corporation is the contractor. 

The contractor has completed the sound wall panels on both the northbound and southbound sides of the bridges over Chain Bridge Road, Magarity Road and Pimmit Run. Transition panels between the bridge-mounted sound wall and the ground-mounted sound wall are pending and will be constructed upon installation of the end posts by Lane Construction Corp. 

Both contracts have a fixed completion date of May 29, 2015.


The project is constructing sound walls as required by Chapter 874 Virginia Acts of Assembly 2010:

"pursuant to the provisions of the Memorandum of Agreement between the Commonwealth of Virginia Department of Transportation and the Metropolitan Washington Airports Authority, in conjunction with the construction of rail mass transit in the right of way of the Dulles Access/Toll Road Connector (DATRC), sound walls shall be constructed along residential properties from the beginning of the DATRC to Interstate Route 66 with funding from the Commonwealth Transportation Fund."

Traffic Impacts

Daytime shoulder closures remain in effect from Magarity Road to Pimmit Run, with minimal disruption to traffic. 


Public hearing presentation and summary of comments (Sept. 2012)
Final Noise Barrier Design Report and Noise thermometer 
Information meeting presentation (Fundamentals of traffic noise and results) and brochure (Dec.2011)
Conceptual plan display boards: 1 | 2 | 3 | 4 | 5

"Pardon out dust" meeting presentation (July 2013)


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Page last modified: March 9, 2015