Map of construction project districts


Route 28 and Dulles Toll Road/Dulles Greenway Study

Safety and operational improvements in the vicinity of the Dulles Toll Road/Dulles Greenway interchange

Area Maps

Project at a Glance
Begin Date
February 2019

Est Completion Date
Late 2020



Lengths and Limits
Frying Pan Rd to
Sterling Blvd (3 mi)

Fairfax and Loudoun

Northern Virginia

Abraham Lerner, P.E.
Susan Shaw, P.E.

About the Study

This study will assess traffic operations and safety and develop mitigation measures for the Route 28 corridor in the vicinity of the Dulles Toll Road/Dulles Greenway interchange (the "Project"), from Route 665 (Frying Pan Road) in Fairfax County to Route 846 (Sterling Boulevard) in Loudoun County. The study will identify safety and operational improvements, both short- and long-term, recognizing the complexity of this area, the multimodal nature of the corridors, the closely spaced interchanges, and the mutual interests of all parties to improve travel through this area in a safe and efficient manner. 

The study is being conducted with technical and financial participation from Fairfax County, Loudoun County, the Metropolitan Washington Airports Authority (MWAA) and Toll Road Investors Partnership II (TRIP II).

At the interchange, Route 28 averages 155,000 vehicles a day, the Dulles Toll Road averages 83,000 and the Dulles Greenway averages 46,000.

Virtual Public Meeting and Survey Results

A virtual public meeting was held consisting of a narrated presentation video, project brochure, graphics of different improvement alternatives and the recommended preferred alternative, and other reference materials that were made available on the project website. Materials also included an online survey to solicit input on various alternatives. View a summary of outreach efforts and results of the survey here.  View the presentation and materials in the below section.

Virtual Meeting Materials and Other Project Resources

Alternative 1 - PDF, 43.6MB
Alternative 2 - PDF, 43.7MB
Alternative 3 - PDF, 43.8MB
Alternative 3 Option B - PDF, 43.8MB
Alternative Matrix - PDF, 2MB
Brochure - PDF, 722KB
Future Programmed/Funded Transportation Projects - PDF, 2.4MB
Preferred Alternative - PDF, 38.6MB
Presentation to Commonwealth Transportation Board, September 2019 - PDF, 641KB
Press Release July 2, 2020 - Website
Project Presentation (Narrated) - Video
Project Presentation (Non-narrated) - PDF, 13MB
Route 28 Outreach Summary - PDF, 7.5MB

Provide Your Comments

Comments and questions can also be sent by:

  • Emailing (reference Route 28 DTR Greenway Study in the subject line)
  • Mailing to VDOT’s Northern Virginia District Office, 4975 Alliance Drive, Fairfax, Va 22030, attention Abi Lerner, P.E., Project Manager.

All input and comments must be received by no later than August 3, 2020 to be included in the formal comment period.

Project Numbers
State: 0028-96A-582
UPC: 116298

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Page last modified: Feb. 23, 2021