Take the No Love for Litter Pledge

Overnight Full Closure of I-66 East and West at Route 123, May 7-8, for Bridge Beam Installation. Learn more.

About the Project

Route 50 Interchange

The Route 50 Interchange is being rebuilt and improved as part of the Transform 66 Outside the Beltway Project. The new interchange design will:

  • Add Express Lanes access to and from the east
  • Construct new Route 50 bridges over I-66 to improve traffic flow and create room for future mass transit
  • Add noise wall along the ramp from I-66 West to Route 50 West
  • Build a shared-use path through the interchange connecting Random Hills Park and Fairfax Corner with Fairfax Farms Road and points to the east

Get a closer look at what’s planned through the Transform 66 Interactive Map.

Construction Update (Updated April 6, 2021)

Recent Construction Progress:

  • All beams have been set for the new Route 50 East and West bridges 
  • Temporary ramp from Route 50 West to I-66 West opened
  • Box culverts built for future shared-use path through interchange

Upcoming Construction Activities:

  • Complete Route 50 bridge decks, shift traffic to new bridges
  • Demolition of old Route 50 bridges
  • Shift I-66 travel lanes to allow room for Express Lanes, ramp construction
  • Construction of replacement and new noise walls
  • Construction of shared-use path through interchange
  • Express Lanes open late 2022

More than 100 beams are being placed for the new Route 50 bridges over I-66. (Feb. 10)

A crane lifts a beam into place over I-66 West at the Route 50 Interchange. (Feb. 10)

Beams have been installed for the new Route 50 bridges over I-66. The ramp from Route 50 West to I-66 West has been relocated to accommodate construction. Pavement has been placed approaching the new Route 50 West bridge. (April 20)

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

Random Hills Park

Utility relocation near the Route 50 Interchange will require a 0.01-acre permanent utility easement on Random Hills Park. As required by federal regulation, VDOT is accepting public comment regarding the Fairfax County Park Authority’s preliminary concurrence with the Federal Highway Administration’s Section 4(f) applicability criteria for de minimis impact for this easement.

View the public notice and additional information using these links.


Anticipated Schedule Dates
Ramp and bridge work begins
Fall 2019
Various traffic shifts and temporary ramp closures for construction and demolition
2019 through 2022
New bridges open to traffic
Demolition of old bridges
Express lanes open December 2022


Random Hills Park – Public Notice
Random Hills Park - Preliminary Concurrence for de minimis Impact
Random Hills Park Utility Relocation Alternatives Assessment
Exhibit 1 - Random Hills Park Utility Reloc Exhibit 1