Map of construction project districts

In Design

Route 606/Loudoun County Parkway/Old Ox Road

Reconstruction and Widening

Area Maps

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Project at a Glance

Begin Date
Construction late 2014

Estimated $106 million

Lengths and Limits
Evergreen Mills Road to the Dulles Greenway


Northern Virginia

James C. Zeller
Preliminary Engineering Manager for Loudoun County
Zamir Mirza
Project Manager

Governor McDonnell Announces VDOT, Loudoun, and Airports Authority Partner to Widen Route 606

About the Project

Loudoun County Parkway/Old Ox Road (Route 606) connects two major roads, Route 50 and Route 28 (Sully Road) and is a desirable route for motorists from points west to access Ashburn, Sterling and Herndon. The road is currently congested in both directions during peak hours. This project will address the need to increase capacity on this section of road due to growth in the surrounding area and the resulting increase in traffic congestion.

The project will:

  • Reconstruct and widen the existing two-lane rural road to four lanes between Evergreen Mills Road (Route 621) and the Dulles Greenway (Route 267) (a distance of about 5 miles)
  • Include a depressed, grass median wide enough to allow for future expansion 
  • Include provisions for bicyclists and pedestrians.

Anticipated Schedule

Public hearing - Summer 2013
Design approval - Fall 2013
Requests for bids - Late 2013
Begin construction - Late 2014

Project Background

Planning for the widening of the Route 606 corridor between Route 50 and the Dulles Greenway has been ongoing since the early 1990s. The first segment was implemented in 2002-03 with the reconstruction and widening between Route 50 and Evergreen Mills Road.  

The project will implement the ‘Interim Condition’ as described in Loudoun County’s Countywide Transportation Plan. This plan calls for Route 606 to be a controlled-access, median-divided urban collector. The ultimate condition as described in the Countywide Transportation Plan calls for a limited-access, median-divided urban arterial. The proposed design implements the interim condition while enabling a future conversion to its ultimate condition.

The Metropolitan Washington Airport Authority (MWAA), Loudoun County and Virginia Department of Transportation (VDOT) are jointly funding the project, which is being developed by VDOT.



Noise Abatement Guidelines and Noise Abatement Design Study Reports

Public hearing brochure and exhibits (21MB) (June 2013)
Environmental assessment (9MB)
Typical section


UPC: 97529  State Project Number: 0606-053-983,P101

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Page last modified: Nov. 5, 2013