Map of construction project districts

Under Construction

I-66 Spot Improvements - Spot 2

Westbound from Washington Boulevard in Arlington to the Dulles Access Road in Fairfax

Project Photos

Project at a Glance

Begin Date
January 2014

Est Completion Date
August 2015

$23 million

The Lane Construction Corporation

Arlington and Fairfax

Northern Virginia

Larry Lethcoe
Construction Manager
Syed Khan, P.E.
Construction Manager
Charles "Mel" Harvey, P.E.
Area Construction Engineer

About the Project

This project will connect the Washington Boulevard on-ramp to the off-ramp at the Dulles Airport Access Road, creating a one-mile stretch of auxiliary lane to improve operations and safety on westbound I-66.

A new 12-foot-wide shoulder is also being constructed, with full-strength pavement capable of carrying traffic during emergencies.

A similar project was completed in December 2011, extending the acceleration lane at the Fairfax Drive on-ramp (just west of George Mason Drive) to the deceleration lane at the Sycamore Street off-ramp, creating a continuous auxiliary lane of almost two miles between the two ramps. A new 12-foot-wide shoulder was also constructed.

A third project between Lee Highway and Glebe Road is planned but not yet fully funded for construction.

Traffic Impacts

No daytime traffic impacts are expected as crews will work behind barriers.

All lane closures will be done at night from 10 p.m. to 5 a.m. 

Construction Updates

Soundwall panel installation is ongoing. The following represents completion dates for the installation of the remaining sound walls:

Between Great Falls St. and Hallwood Ave. - Completed
Between Hallwood Ave. and Williamsburg Blvd. - Completed
Between Dulles Airport Access Rd. and Haycock Rd. - January 17, 2015
Between Williamsburg Blvd. and Westmoreland St. - January 10, 2015
Between Westmoreland St. and Washington Blvd. - January 10, 2015

Notification of future paving operations will be posted on this website.


View the project plans.

Pardon Our Dust Meeting Presentation (January 15, 2014)

UPC: 78828   
State Project: 0066-96A-113, C501, B602, B601

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Page last modified: March 20, 2015