Under Construction: Spring Street Widening in the Town of Herndon

Cost and schedule ►

Public outreach ►

Project Area

Please note: A "pardon our dust" meeting was held Feb. 13, watch the video below and view the presentation:

This project is widening about a quarter-mile of Spring Street from just west of Herndon Parkway to Fairfax County Parkway to allow for additional through and turn lanes. Additional turn lanes on Herndon Parkway are also being constructed at the Spring Street intersection.

The project also includes a new sidewalk and eight-foot-wide cycle track along northbound Herndon Parkway that will eventually connect the new Herndon Metro station to the Washington & Old Dominion Trail. A cycle track combines the user experience of a separated path with the on-street infrastructure of a conventional bike lane.

Other pedestrian improvements include:

  • A new sidewalk along eastbound Spring Street from Sunset Park Drive to Fairfax County Parkway
  • Enhancing existing sidewalks on both sides of Spring Street
  • Replacing the sidewalk along southbound Herndon Parkway

Within the project limits, Spring Street averages about 32,000 vehicles a day and Herndon Parkway averages about 15,000.

Estimated Costs
Preliminary Engineering - $2.3 million
Right of Way Acquisition and Utility Relocation - $8 million
Construction - $12.3 million
Total: $22.6 million

This project is financed with federal, state (including Smart Scale and Revenue Sharing funding) and local funding.


This project will improve safety and operations for drivers, as well as safety, accessibility and connectivity for bicyclists and pedestrians.

Major Milestones 

Public Information Meeting - November 2017
Design Public Hearing - March 2018 
Categorical Exclusion Available - June 2018
Approve Design - July 2018
Begin Right of Way Acquisition - June 2019
Advertise for Construction - May 2022
Award Construction Contract - September 2022
Begin Construction - November 2022
"Pardon Our Dust" Meeting - February 2023
Final Completion - Late 2024


Contact Info:

Tim Diliscia, CCM

Dinesh Singh, P.E., CCM

Chan Basnayake, P.E., PMP, CCM

Other relevant links:

"Pardon Our Dust" Meeting VideoPresentation and News Release - February 2023

Categorical Exclusion - June 2018 (Ad)

Design Public Hearing - March 2018 (Ad)

Previous Meetings >>

Major funding source: Smart Scale

Phase: Under Construction

UPC: 105521

State ID: U000-235-354, P101, R201, C501

Federal ID: STP-5A01 (749), RSTP-5B01 (039), RSTP-5B01 (040)

Lat/Long: 38.958891, -77.374283

Locality: Fairfax

Page last modified: March 25, 2023