Coming Soon: Belmont Ridge Road at the Dulles Greenway in Loudoun County

Cost and schedule ►

This project will increase the number of lanes from two to four along Belmont Ridge Road (Route 659) over the Dulles Greenway (Route 267) without structural widening of the existing bridge.

The existing Belmont Ridge Road bridge over the Dulles Greenway is one lane in each direction, with a left turn lane from northbound Belmont Ridge Road to the ramp to the westbound Dulles Greenway. Two lanes are proposed in each direction and a left turn lane on northbound Belmont Ridge Road to westbound Dulles Greenway, with two-foot shoulders on both sides.

North of the bridge, the road will be repaved and restriped, and the traffic signal at Ashburn Farm Parkway/Sycolin Road will be retimed and adjusted. South of the bridge, the road will be reconstructed along with the ramps to and from the eastbound Dulles Greenway.

The project will also include a new traffic signal on Belmont Ridge Road at the westbound Dulles Greenway on- and off-ramps.

Within the project limits, Belmont Ridge Road averages up to 18,000 vehicles a day and the Dulles Greenway averages 33,000. At the Belmont Ridge Road intersection, Sycolin Road averages 13,000 vehicles a day and Ashburn Farm Parkway averages 11,000.

Estimated Costs
Preliminary Engineering - $1.3 million
Construction - $6.2 million
Total - $7.5 million

This project is being financed with federal and state funding.


This project aims to reduce congestion and improve safety and operations for drivers.

Major Milestones 

Begin Preliminary Engineering - June 2016
Notice of Willingness to Hold Public Hearing and Categorical Exclusion Availability - December 2017
Advertise for Construction - May 2019
Begin Construction
 - Fall 2019


Contact Info:

Khalid Gandhi, P.E.
Location & Design

Kimberly McCool, P.E.
Preliminary Engineering

Project Photos

Phase: Coming Soon

UPC: 109473

State ID: 0659-053-154, P101, M501

Federal ID: STP-5A01 (787)

Long/Lat: 39.036980, -77.522929

Locality: Loudoun

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Belmont Ridge Road bridge over the Dulles Greenway looking north
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Southern end of project: Belmont Ridge Road and the eastbound Dulles Greenway on- and off-ramps looking north
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Northern end of project - Belmont Ridge Road traffic signal at Ashburn Farm Parkway/Sycolin Road looking south

Page last modified: July 15, 2019