Under Construction: I-66 at Route 28 in Fairfax County

Cost and schedule ►

Note: This project is being constructed as part of the Transform 66 Outside the Beltway Improvements.

The Six-Year Improvement Program approved by the Commonwealth Transportation Board in June 2014 provided $50 million to begin design, right of way and construction for Phase 1 improvements to the I-66 interchange at Route 28. 

A preliminary study identified interchange alternatives, created a concept-level operational analysis, developed cost estimates and identified key implementation constraints. 

Study results were shared with the community and stakeholders, and next steps included identifying funding.

The study considered:

  • Traffic volumes at the year 2040
  • Right-of-way impacts and property access issues for the Fairfax County Park Authority
  • Braddock and Walney roads
  • Community concerns
  • Possible phasing opportunities


This project aims to reduce congestion and associated air quality impacts, improve safety and operations and enhance bicycle and pedestrian accessibility. 


Contact Info:

Transform 66 Project Team

Previous Meetings >>

UPC: 103317, 110197

State ID: 0066-029-016, P101

Federal ID: HSIP-066-1 (345)

Lat/Long: 38.846613, -77.432310

Locality: Fairfax

Page last modified: March 25, 2023