In Design: Hunter Mill Road over Colvin Run Bridge Replacement in Fairfax County

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Sept. 16 Virtual Design Public Hearing Info

A virtual design public hearing was held Sept. 16, watch the video here. For details on how to give feedback through Oct. 8, click here.  

This project will replace the weight-restricted (ten tons) one-lane Hunter Mill Road bridge over Colvin Run. The new bridge will have two lanes separated by a median/splitter island.

The project also includes:

  • An improved trail crossing south of the bridge
  • Landscaping in the median/splitter island 
  • Abutments for a new trail bridge over Colvin Run (Fairfax County will construct the trail bridge in the future)

The existing bridge, built in 1974, averages 8,500 vehicles a day.

Estimated Costs
Preliminary Engineering - $863,000
Construction - $4.1 million
Total: $5.1 million

This project is financed with state funding (including State of Good Repair funds used for bridges) and Fairfax County funding.


The project aims to reduce congestion and improve operations and safety.

Major Milestones 

Public Information Meeting - April 2018
Virtual Public Involvement - May/June 2020
Virtual Design Public Hearing - Sept. 16, 2020
Virtual Design Public Hearing Public Comment Deadline - Oct. 8, 2020
Begin Construction - Spring 2021


Contact Info:

Vicente Valeza, P.E.
Structure & Bridge

Andrew Beacher, P.E.
Preliminary Engineering

Project Photos

Other relevant links:

Project Plans - June 2020

Conceptual Bridge Replacement Study Report - October 2017

Previous Meetings >>

Major funding source: State of Good Repair

Phase: In Design

UPC: 110499, 110433

State ID: 0674-029-358, P101, B643

Federal ID: STP-BR09 (295)

Lat/Long: 38.965604, -77.309634

Locality: Fairfax

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Page last modified: Sept. 17, 2020