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Under Construction

I-66 Spot Improvements - Spot 2

Westbound between Washington Boulevard in Arlington and the Dulles Access Road in Fairfax

Project at a Glance

Begin Date
Construction January 2014

Est Completion Date
Late Summer 2015

$23 million

The Lane Construction Corporation

Arlington and Fairfax

Northern Virginia

Larry Lethcoe
Charles M. Harvey, P.E.

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 will also be 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. Through early summer, only occasional lane closures are expected, with nighttime lane closures increasing during the summer.

Construction Updates

January 2014

Crews have begun clearing efforts for the project in addition to demolition of the existing soundwalls and will continue these efforts proceeding from the exit for the Dulles Access Road toward Westmoreland Street along the right shoulder of I-66 westbound. The contractor will soon have crews on site to begin constructing the new soundwalls, once again, starting at the Dulles Access Road.

February 2014

Efforts continue along the project including preparations for stormwater drainage upgrades for I-66 westbound. Additionally, soundwall construction is anticipated to begin in early March, starting at the Dulles Access Road.

March 2014

Soundwall construction currently begins at the Dulles Airport Access Road and working east along I-66 westbound. Additionally, drainage improvements are ongoing off the existing right shoulder of I-66 westbound. Tree clearing and trimming, and demolition of the existing soundwall has also continued along VDOT Right of Way.


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 26, 2014