The Transform 66 Outside the Beltway Project transforms 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 Express Lanes opened ahead of schedule in November 2022.
Improvements include:
22.5 miles of new Express Lanes alongside three regular lanes on I-66 from I-495 to Route 29 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
Project Timeline
Project Maps
View maps related to the Transform 66 Outside the Beltway project.
Project Video
Learn more about project plans and construction progress on the project videos page.
Express Lanes Access
This map shows locations of entrances and exits for the 66 Express Lanes outside the Beltway.
Project Statistics
22.5 miles of new Express Lanes from I-495 to Route 29 in Gainesville
18 miles of new shared-use path along and near I-66
4,000+ new park-and-ride spaces
12 interchanges rebuilt or modified
63 bridges constructed
13 new bridges at Route 28 Interchange
11 new bridges at I-495 Interchange
395 concrete beams
657 segments of steel beams
Largest beam is 46 tons
33 bridges demolished (17 complete, 16 partial)
150,000+ tons of concrete deck removed
80,000+ tons of rebar
500+ steel beams
2.2 million square feet of new and replacement noise wall
2.3 million square feet of retaining wall
57 million pounds of steel
3.1 million tons of asphalt (with over 1 million tons laid in 2021)
11.9 million hours worked (as of Oct. 31, 2022)
Average 2,000+ workers per day during peak construction
