Route 29 Interchange in Centreville

The I-66 bridges over Route 29 in Centreville have been rebuilt as part of the Transform 66 Project. The new interchange design:
- Widens I-66 over Route 29 to create room for the 66 Express Lanes and future mass transit
- Widens Route 29 under I-66 for additional lanes to be added to Route 29 in the future
- Adds clearance to the Route 29 underpass for commercial vehicles
Get a closer look with through the Transform 66 Interactive Map.
Construction Update (Updated October 18, 2023)
Completed Construction:
- Route 29 reconstruction under I-66

Aerial view of the Route 29 Interchange. (April 2023)
What Neighbors Can Expect
- Noisy construction activities will be avoided at night, when possible. Noise to expect at night includes back-up alarms on equipment and trucks, which is necessary to protect worker safety.
- Lighting of the construction work area will be directed to minimize light pollution for nearby residents.
- Project emails and website will be used to communicate major traffic switches or nighttime work.
What Drivers Can Expect
Timeline
Anticipated Schedule |
Dates |
Ramp and bridge work begins
|
Fall 2019
|
Ramp from Route 29 South to I-66 West closes for about 18 months
|
October 28, 2019 - December 24, 2020
|
Partial bridge demolition
|
Winter 2019 |
Ramp from Route 29 North to I-66 East closes for about four months
|
January 9 - May 17, 2021
|
Various traffic shifts and ramp closures for construction and demolition |
2020 through 2022 |
Express Lanes opened |
November 2022 |
Resources
Concept plans (Cub Run) - PDF, 6MB |
Concept plans (Route 29) - PDF, 6MB |
Centreville Area Construction Update Meeting Flyer - PDF, 6MB |
Centreville Area Construction Update Meeting Handout (November 18, 2019) - PDF, 1.5MB |
Centreville Area Construction Update Meeting Presentation (November 18, 2019) - PDF, 2.1MB |
Centreville Area Construction Update Meeting Boards (November 18, 2019) - PDF, 7.1MB |
Traffic Pattern Changes Planned for I-66/Route 29 Interchange in Centreville Starting on or About October 28 - Website |
Route 29 in Centreville Reduced to Two Lanes Under I-66 Next Weekend, December 13-16 - Website |
Flyer on Route 29 Centreville Bridge Demolition (December 2019) - PDF, 2MB |
Flyer on Route 29 Centreville Bridge Demolition (December 2020) - PDF, 6MB |