Design & Construction Details

Tuscarora Tunnel Rehabilitation Project Design & Construction Details

Design Activities

Traffic Advisories

February 20, 2020
Eastbound Tuscarora Tunnel Closure Begins This Sunday

December 2, 2019
Single-Lane Patterns through Tuscarora Tunnel to Begin This Week

July 10, 2023
Single-Lane traffic patterns to continue from 9pm Sunday to noon on Thursday each week until Labor Day



Current Detours

  • There are no detours at this time.

Construction Activities

Project Details

Multiple tasks will be completed while the tunnel is under construction. Some improvements will be made in both tunnels, while others will only apply to one tube. Major tasks associated with this tunnel improvement project include:

  • Upgrade fire/life safety/communication systems
  • Upgrade electrical systems including new back-up generators
  • Upgrade mechanical system
  • Replace walkway and roadway barriers
  • Replace drainage system
  • New lighting system
  • New tunnel control system
  • New ventilation system
  • Improve tunnel entrances
  • Remove existing ceiling
  • Install a PVC membrane waterproofing system and shotcrete liner
  • Widen travel lanes

Four Week Lookahead

  • Work continues in the westbound tunnel including installation of new lighting, new drainage system and shotcrete placement. Work also continues at both east and west portal buildings.

The scope also includes full-depth replacement of approach roadways and rehabilitation of dual mainline two-span continuous deck I-beam bridges at MP 185.9. Bridge tasks include deck repairs; installation of membrane waterproofing and bituminous overlay; asphaltic plug expansion joints, painting, new concrete end diaphragm; and installation of a wingwall buttress.

Tuscarora Tunnel Rehabilitation Project two-way road

Photo Album

Below you will find pictures of the actual construction progress.

The photo album will be updated with construction photos as they are available.

More Project Resources

Project Overview

Learn about the Tuscarora Tunnel Rehabilitation Project.

Learn More

News & Public Involvement

Learn how we stay connected with the public about this project.

Stay Updated

Team & Contact Information

Learn about the team that we will work with to complete the work on this project.

Contact the Team