Map of construction project districts

Under Construction

I-66 Active Traffic Management System

Improving safety and incident management from the D.C. line to Route 29 in Gainesville

Project Photos

Project at a Glance

Begin Date
August 23, 2013

Est Completion Date
Mid-summer 2015

$38.6 million

Lengths and Limits
D.C. line to Route 29 in Gainesville


Northern Virginia

Kamal Suliman
Program Manager
Christiana Briganti-Dunn, P.E.
Design Build Manager
Dave Fitzgerald
Construction Manager
Shirlene Cleveland, P.E.
Program Manager for Design Build Projects

About the Project

Construction is now occurring on this project that involves installing an active traffic management (ATM) system on I-66 through Arlington, Fairfax and Prince William counties from the Washington, D.C. line to Route 29 in Gainesville. The system will improve safety and incident management and include new sign gantries, shoulder and lane control signs, speed displays, incident and queue detection, and increased traffic camera coverage.

Drivers are seeing the new overhead sign gantries installed between the Beltway and Route 29 in Centreville.

TransCore is designing and building the active traffic management system. 

The project is scheduled for completion in mid-summer 2015.



Public information meeting presentation and video (July 2011)
ATM and I-66 project fact sheet and frequently asked questions
Project treatment definitions and conceptual design
Gantry variations
Other I-66 corridor initiatives

More information on similar projects in the U.S. and Europe:
Washington Department of Transportation (WSDOT)
U.S. Federal Highway Administration (FHWA)
United Kingdom Highways Agency

State Project Number: 0066-96A-917   UPC: 98017

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Page last modified: March 20, 2015