Route 29 (Lee Highway) Interchange in Centreville

The I-66 bridges over Route 29 (Lee Highway) 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 January 20, 2023)

Recent Construction Progress:

I-66 traffic shifted to outside portion of roadway using new bridges over Route 29
All old I-66 bridges over Route 29 have been demolished
Ramp from Route 29 South to I-66 West reopened
Ramps from Route 29 North and South to I-66 East reopened

Upcoming Construction Activities:

Aerial view of the Route 29 Centreville interchange

Aerial view of the Route 29 interchange. (December 20, 2022)

What Neighbors Can Expect

Noisy construction activities such as bridge demolition and pile driving 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

Route 29 will remain open during construction, but there will be numerous long-term and short-term ramp closures, traffic shifts, and other traffic pattern changes during construction.
Drivers should expect additional changes as work progresses at the interchange. Sign up for project email updates to keep up to date.

Construction Update Meeting Held in November 2019

On November 18, 2019, the Transform 66 Outside the Beltway Project Team held an update meeting on work and traffic changes in the Centreville area to include Route 28, Route 29, and E.C. Lawrence Park.
Materials from the meeting can be found in the Resources section below.

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