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About the Transform 66 Outside the Beltway Project

The Transform 66 Outside the Beltway project will transform Northern Virginia’s Interstate 66 into a multimodal corridor that moves more people, provides reliable trips and offers new travel options. The project is a public-private partnership between the Virginia Department of Transportation (VDOT), the Department of Rail and Public Transportation (DRPT), and private partner, I-66 Express Mobility Partners, delivering $3.7 billion of transportation improvements in the I-66 corridor. The project is scheduled for completion in December 2022.

Improvements include:

  • 22.5 miles of new Express Lanes alongside three regular lanes on I-66 from I-495 to University Boulevard in Gainesville
  • More reliable and faster trips on I-66 due to dynamically-tolled Express Lanes – available to solo drivers choosing to pay a toll and free to vehicles with three or more people
  • New and improved bus service and transit routes
  • New and expanded park and ride lots providing convenient access to the Express Lanes and more than 4,000 new park and ride spaces
  • Interchange improvements to enhance safety and reduce congestion, including auxiliary lanes between interchanges, where needed
  • 11 miles of new bike and pedestrian trails, including shared-use trails along I-66 that integrate with local trails, and new crossings of I-66 to improve and expand bicycle and pedestrian routes

Construction Ramps Up

Early construction activities on the I-66 Outside the Beltway Project began in late 2017, with activities ramping up in March 2018.  Activities that will be visible to area travelers and residents include:

  • Geotechnical surveys to test soil where construction will occur
  • Utility surveys to mark locations of underground utilities such as phone, water and gas lines
  • Relocating utilities where necessary
  • Installing erosion and sediment control measures such as construction fencing to protect the natural environment during construction
  • Removing trees where necessary
  • Grading and drainage work

Initial construction activities are taking place within existing VDOT right of way and alongside the roadway. Work will begin in these areas:

  • Eastbound I-66 at I-495 (Capital Beltway) 
  • Both directions on I-66 between Chain Bridge Road (Route 123) and east of Waples Mill Road  
  • Both directions on Route 28 north of I-66 between Westfields Boulevard and just north of Braddock and Walney Roads
  • Both directions on I-66 near Gainesville between Route 29 and west of Sudley Road 
  • University Boulevard park and ride lot near Gainesville (east of Route 29 interchange)

 Click here to learn more about upcoming construction.

Vamp up map - click to view pdf version

Have Your Say

Public involvement and input are critical elements in the development and delivery of transportation projects. We welcome your suggestions and comments by email and online.

Project Update

To request a meeting on Transform 66 Outside the Beltway for your community or service organization, please click here.



Project News


FAIRFAX, Va. - The Virginia Department of Transportation (VDOT) announced today that starting in late March, crews will begin installing concrete barriers, shifting lanes and setting up work zones on sections of I-66 Outside the Beltway, ramping up construction on the Transform I-66 initiative. This early work will allow heavier construction to begin on the new express lanes and other improvements that are being built along the 22.5-mile project corridor on I-66 between I-495 and Gainesville. Construction on the $2.3 billion design-build project is scheduled to run until late 2022.

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