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:

Aerial view of the Route 29 Centreville interchange

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

Drivers should expect ramp and lane closures as construction enters the final stage of completion at the interchange. Sign up for project email updates to keep up to date.

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