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
Construction January 2014

Est Completion Date
Late Summer 2015

$23 million

The Lane Construction Corporation

Northern Virginia

Larry Lethcoe
Construction Manager
Syed Khan, P.E. (CES)
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 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

August 2014

Due to soundwall panel fabrication delays, soundwalls on the project are now projected to be completed by the end of October 2014.

Paving will be begin soon along the right shoulder and traffic along I-66 westbound will be shifted to the right in September to allow for improvements to be made along the left shoulder.

July 2014

Bridge widening work has begun at Williamsburg Boulevard and Westmoreland Street. This work will require occasional lane closures, resulting in the presence of flaggers and two-way, one lane traffic on these roads. 

Drainage improvements have continued along both the median and right shoulder of I-66 westbound. Additionally, soundwall construction has continued along the right shoulder of I-66 westbound. 

June 2014

Crews began installing soundwall panels at the west end of the Dulles Airport Access Road (DAAR) ramp. Over the next couple of weeks, crews will install soundwall panels where they have already installed posts, working from west to east.  

May 2014

Soundwall construction continues westbound. The crew is working east of Great Falls St. toward Williamsburg Blvd. Soundwall panel installation begins soon, starting at the ramp to the Dulles Airport Access Road and working east along westbound I-66. Drainage improvements continue along the right shoulder and work along the left shoulder will begin this month.


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: Aug. 20, 2014