Under Construction: Route 29 Widening in Fairfax County

Cost and schedule ►

Public outreach ►

Please note: "pardon our dust" meeting was held April 20, view the presentation and display boards.

Tree-clearing along Route 29 has started in the VDOT right of way and where rights have been acquired. Due to tree-clearing activities on the north side of Route 29 between Stringfellow Road and Meadow Estates Drive, the Fairfax County Park Authority's Willow Pond Trail through this area will be closed through April 2023. Please use alternate routes (click here).

A groundbreaking ceremony was held March 8.

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. 

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

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 county funding, as well as part of the concession fee provided under the Transform 66 Outside the Beltway Project Comprehensive Agreement.


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 - February 2023
Groundbreaking Ceremony - March 2023
"Pardon Our Dust" Meeting - April 20, 2023
Final Completion - Spring 2026


Contact Info:

Jennifer Thomas

Jitender "Jay" Babra

Sanjeev Suri, P.E., PMP, CCM

Project Photos

Other relevant links:

"Pardon Our Dust" Meeting Presentation, Display Boards and News Release -
April 2023

Groundbreaking Ceremony News Release -
March 2023

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: Under Construction

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: April 26, 2023