Recently Completed: Williamson Boulevard and Stonehouse Drive Traffic Signal in Prince William County

Cost and schedule ►

This project installed a new traffic signal at the intersection of Williamson Boulevard and Stonehouse Drive. 

Other improvements included:

At the intersection, Williamson Boulevard averages up to 16,000 vehicles a day and Stonehouse Drive averages 5,700.

Estimated Costs
Preliminary Engineering - $264,000
Right of Way Acquisition and Utility Relocation - $51,000
Construction - $500,000
Total - $815,000

This project was financed with federal and state funding including Highway Safety Improvement Program funds.


This project aimed to improve pedestrian and driver 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
Traffic Signal Activated - August 2020
Final Completion - December 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: Recently Completed

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: Feb. 25, 2021