Recently Completed: Route 50 and Waples Mill Road Intersection Improvements in Fairfax County

Cost and schedule ►

Public outreach ►

Please note: This project was completed in August 2023.

This project's improvements included a new additional left-turn lane from westbound Route 50 to southbound Waples Mill Road (Route 665).

Other improvements included traffic signal upgrades and a new bicyclist/pedestrian crossing and refuge island along the western side of the intersection across Route 50.

At the intersection, Route 50 averages 48,000 vehicles a day and Waples Mill Road averages about 25,000.

Estimated Costs
Preliminary Engineering - $623,000
Right of Way Acquisition and Utility Relocation - $46,000
Construction - $2.2 million
Total - $2.9 million

This project was financed with local funding and part of the concession fee provided under the Transform 66 Outside the Beltway Project Comprehensive Agreement.


This project aims to improve safety, traffic flow and bicyclist/pedestrian accessibility and mobility.

Major Milestones 

Notice of Willingness to Hold a Public Hearing - November 2019
Begin Right of Way Acquisition - August 2021
Advertise for Construction - June 2022
Award Construction Contract - August 2022
Begin Construction - October 2022
Improvements Open/Substantial Completion - June 2023
Final Completion - August 2023


Contact Info:

Oscar Jamilla, DPE, PMP

Chan Basnayake, P.E., PMP, CCM

Major funding source: Transform 66 Outside the Beltway Concession Fee

Phase: Recently Completed

UPC: 113517

State ID: 0050-029-415, C501, P101, R201

Federal ID: NHPP-5A01 (945), NHPP-5B01 (188), NHPP-5B01 (275)

Lat/Long: 38.857468, -77.335360

Locality: Fairfax

Page last modified: Sept. 5, 2023