Take the No Love for Litter Pledge


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.

New Bridge on Route 50 East Over I-66 is Now Open

Traffic on eastbound Route 50 shifted to a new bridge over I-66 on Saturday, July 17. This new, permanent bridge is located slightly east of the current bridge, which will be demolished following the traffic shift. Learn more.

Demolition of Route 50 Bridges over I-66 Has Begun

Continued demolition of the old Route 50 East bridge over I-66 will require all lanes of I-66 West approaching Route 50 to close nightly between Tuesday, July 27, and Sunday, August 1. The I-66 West ramps to/from Route 50 will also be closed. Traffic will be detoured using Route 50 and Route 608 (West Ox Road).

Some demolition activities will generate unavoidable noise and other disruptions. The following measures will be taken to minimize impacts as much as feasible:

  • Concrete will be hauled away to be processed off-site
  • Work area lighting will be directed toward roadway and away from residences
  • Dust control measures will be in place
  • Construction vibrations and noise will be monitored

Construction Update (Updated July 27, 2021)

Recent Construction Progress:

  • New Route 50 West bridge opened June 27, 2021
  • New Route 50 East bridge opened July 17, 2021
  • Temporary ramp from Route 50 West to I-66 West opened
  • Box culverts built for future shared-use path through interchange
  • Demolition of the old Route 50 West bridge completed July 16 (see Demolition Update below)

Upcoming Construction Activities:

  • Demolition of the old Route 50 East bridge began July 18
  • Shift I-66 travel lanes to allow room for construction of Express Lanes and ramps
  • Construction of replacement and new noise walls
  • Construction of shared-use path through interchange
  • Express Lanes open late 2022

Demolition Update:

  • The old Route 50 West bridge over I-66 has been demolished (completed July 16)
  • Demolition of the Route 50 East bridge began Sunday night, July 18, following opening of the new Route 50 East bridge
  • Find additional details here

The new Route 50 overpass is ready for concrete. (May 19, 2021)

Beams have been installed and concrete bridge decks are being poured 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. (May 2, 2021)

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 Route 50 bridges open to traffic
Late June/July 2021
Demolition of old bridges
Summer 2021
Express Lanes open December 2022


Random Hills Park – Public Notice - PDF, 516KB
Random Hills Park - Preliminary Concurrence for de minimis Impact - PDF, 1.2MB
Random Hills Park Utility Relocation Alternatives Assessment - PDF, 1.7MB
Exhibit 1 - Random Hills Park Utility Reloc Exhibit 1 - PDF, 1.4MB
Route 50 Demolition Postcard - PDF 3.2MB