In Design: Walker Road over Piney Run Bridge Replacement in Fairfax County

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This project will replace the weight-restricted Walker Road (Route 681) bridge over Piney Run between Park Royal Drive and Walker Mill Road. The one-lane bridge is limited to vehicles under 10 tons and is prone to flooding during major storms. It was originally built in 1932 with rolled steel beams and a timber deck and was similarly reconstructed in 1978. 

A design public hearing was held in 2016 and the replacement bridge design was approved in 2017. The new bridge will be two lanes with a sidewalk on the southbound side; also, the opening beneath the bridge will be increased and the banks protected with rock to better withstand flooding. 

Walker Road will briefly be closed to replace the bridge using Accelerated Bridge Construction methods. The project is designed to minimize right of way acquisitions, as well as limit impacts to traffic during construction.

The bridge averages 4,300 vehicles a day.

Estimated Costs
Preliminary Engineering - $950,000
Right of Way Acquisition and Utility Relocation - $1.1 million
Construction - $6.3 million
Total - $8.3 million


The project aims to improve safety for drivers and reduce maintenance costs.

Major Milestones 

Design Public Hearing - 2016
Design Approval - 2017
Begin Right of Way Acquisition - April 2023
Begin Utility Relocation - Late 2023
Begin Construction - Early 2025


Contact Info:

Shahrad Behboodi, P.E.
Structure & Bridge

Minwoo Ha, P.E.
Preliminary Engineering

Phase: In Design

UPC: 118395

State ID: 0681-029-534, B663, C501, P101, R201

Federal ID: STP-BR09 (307), STP-BR09 (317)

Lat/Long: 38.979053, -77.294959

Locality: Fairfax

Page last modified: Aug. 17, 2023