Map of construction project districts

In Design

Route 29 Widening

Union Mill Road to Buckleys Gate Drive in Fairfax County

Area Maps

Project Photos

Project at a Glance

Begin Date
Construction: 2021

In Design

$67 million

Lengths and Limits
Union Mill Rd to
Buckleys Gate Dr (1.5 mi)


Hong "Jenny" Ha, P.E.
Location & Design

Andrew Beacher, P.E.
Preliminary Engineering

Note: A public information meeting will be held Wednesday, Oct. 10 from 6:30 p.m. to 8:30 p.m. at Colin L. Powell Elementary School,13340 Leland Road, Centreville, VA 20120. A presentation begins at 7 p.m.

About the Project

This project will 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/improve bicycle and pedestrian facilities on both sides of Route 29 and provide connectivity to pedestrian/bicycle trails at the Fairfax County Parkway/West Ox Road interchange. Multiple public outreach efforts are planned.

Route 29 between Union Mill Road and Buckleys Gate Drive averages 33,000 vehicles a day.

Public Information Meeting: Oct. 10, 2018
Public Information Meeting Comment Deadline: Oct. 22, 2018
Design Public Hearing: Winter 2018/19
Begin Right of Way Acquisition: Summer/Fall 2019
Begin Construction: 2021

Estimated Costs
Preliminary Engineering: $5.7 million
Right of Way Acquisition/Utility Relocation: $21.5 million
Construction: $39.8 million
Total: $67 million

Typical Section


Public Information Meeting - Oct. 10, 2018

Public Notice

Project Numbers
State: 0029-029-350, P101, R201, C501, D612, D613
UPC: 110329
Federal: NHPP-5A01 (917)

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Page last modified: Sept. 20, 2018