Coming Soon: Route 29 Widening in Fairfax County

Cost and schedule ►

Public outreach ►

This project will reconstruct and widen 1.5 miles of Route 29 (Lee Highway) from four to six lanes between Union Mill Road and Buckleys Gate Drive. It will relieve a major bottleneck during AM and PM peak hours, with lengthy backups occurring in particular at the signal for Stringfellow/Clifton roads (Route 645).

The project will also correct vertical alignment to improve sight distance, add and improve shared-use paths on both sides of Route 29 and provide connectivity to pedestrian/bicycle trails at the Fairfax County Parkway/West Ox Road interchange. 

Estimated Costs
Preliminary Engineering: $5.5 million
Right of Way Acquisition and Utility Relocation: $9.7 million
Construction: $81.8 million
Total: $97 million

This project is financed with federal, state (including Smart Scale) and local funding and the I-66 concession fee.

Route 29 within the project limits averages 30,000 vehicles a day.


This project aims to reduce congestion, improve safety, operations and access management, and enhance bicyclist and pedestrian accessibility and connectivity.

Major Milestones 

Public Information Meeting - October 2018
Design Public Hearing - June 2019
Begin Right of Way Acquisition - August 2021
Award Design-Build Contract - May 2022
Begin Construction - Spring 2023
Final Completion - Spring 2026


Contact Info:

Jennifer Thomas

Jitender "Jay" Babra

Sanjeev Suri, P.E., PMP, CCM

Project Photos

Other relevant links:

Noise Report Addendum - Barrier Survey Summary - August 2020

Final Noise Report and Appendices - April 2020

Design Public Hearing - June 2019 (Ad)

Meeting Summary (including public comments)Meeting Materials and Displays: Union Mill Road to Sandy Point Lane | Hampton Forest Way to Buckleys Gate Drive and Typical Section 

Categorical Exclusion - May 2019

Preliminary Noise Analysis - May 2019: Report | Appendices A-C | Appendices D-L

Previous Meetings >>

Phase: Coming Soon

UPC: 110329, 120509

State ID: 0029-029-350, P101, R201, C501, D612

Federal ID: NHPP-5A01 (917)

Lat/Long: 38.840276, -77.398204

Locality: Fairfax

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Typical Section
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Existing four-lane section of Route 29

Page last modified: Oct. 20, 2022