Under Construction: Williamson Boulevard and Stonehouse Drive Traffic Signal in Prince William County

Cost and schedule ►

This project is installing a new traffic signal at the intersection of Williamson Boulevard and Stonehouse Drive. The signal includes a flashing yellow arrow for drivers turning left from Williamson Boulevard to Stonehouse Drive. 

The project is also adding Accesible Pedestrian Signals.

At the intersection, Williamson Boulevard averages up to 15,000 vehicles a day and Stonehouse Drive averages 3,400.

Estimated Costs
Preliminary Engineering - $299,000
Right of Way Acquisition and Utility Relocation - $110,000
Construction - $500,000
Total - $909,000

This project is financed with federal and state Highway Safety Improvement Program funding.


This project aims to improve driver and pedestrian safety as well as operations at the intersection.

Major Milestones 

Begin Preliminary Engineering - June 2017
Notice of Willingness to Hold a Public Hearing - March 2018
Begin Right of Way Acquisition - February 2019
Begin Construction - March 2020
Final Completion - Fall 2020


Contact Info:

Jessica Paris, P.E.
Traffic Engineering

Other relevant links:

Notice of Willingness to Hold Public Hearing - March 2018

Programmatic Categorical Exclusion - December 2017

Major funding source: Highway Safety Improvement Program

Phase: Under Construction

UPC: 109591, 110896

State ID: 1596-076-199, P101, R201, M501; 9999-96A-234, N501

Federal ID: HSIP-5A01 (761), HSIP-5A01 (987); NHPP-TS09 (291)

Lat/Long: 38.796658, -77.513005

Locality: Prince William

Page last modified: July 8, 2020