I-66 Rosslyn Tunnel rehabilitation in Arlington County

Overview

This project is rehabilitating and making improvements to the Rosslyn Tunnel that carries I-66 under North Nash Street, Fort Myer Drive, North Lynn Street and Gateway Park. The tunnel, nearly a fifth of a mile long, was built in 1983.

The improvements include:

• Removing the existing tunnel ceiling to improve long-term maintenance.
• Replacing loose or damaged ceiling tiles.
• Upgrading electrical systems.
• Installing a new fireproofing system.
• Repairing steel beams, abutment and pier concrete, and joints.
• Cleaning and repairing bearings.
• Replacing the tunnel lighting system.

The tunnel averages 73,000 vehicles a day.

Benefits 

This project will improve safety and extend the overall life of the tunnel.

Major milestones 

• Begin preliminary engineering: January 2021
• Advertise for construction: April 2022
• Award construction contract: July 2022
• Begin construction: September 2022
• Final completion: Summer 2025