Freyssinet USA played a key role in a high profile infrastructure project in Augusta, Georgia that entailed sliding a 120-foot-long concrete tunnel beneath Washington Road to connect to Augusta National Golf Club’s new state-of-the-art television and digital compound.

The tunnel, measuring 31 feet wide and 21 feet tall, was installed approximately 10 feet below the surface of Washington Road, a major artery that sees up to 55,000 vehicles per day during the iconic Masters Tournament. Thanks to Freyssinet’s advanced tunnel sliding techniques, construction was completed without disrupting traffic flow.

  • Location
    Augusta, Georgia
  • Project Duration
    December 2018-December 2019
  • General Contractor
    Southland Contracting
  • Customer/Owner
    Augusta National Golf Club
  • Engineer
    Brierly Associates
  • Specialty Subcontractor
    Freyssinet, Inc.
Washington Road Box Tunnel Project

Freyssinet's Mission

Freyssinet conducts tunnel sliding using specialized solutions

Once the tunnel has been constructed, the next critical step in the project was the sliding of the structure under Washington Road without impacting the flow of traffic above.

Freyssinet was awarded this project to assist all parties involved with the sliding of the structure. Our scope of work consisted of:

  • Designing a jacking plan
  • Customize equipment and monitoring system for operation
  • Supply material
  • Lease and operate equipment

Freyssinet specialists offered onsite supervision and related technical services for the sliding operation. This included providing assembly drawings and general jacking procedures.

The tunnel was slid into position by installing large concrete anchor walls on the other side of the embankment, and connecting the tunnel to the anchor walls with high-strength post-tensioning cables. A sharp jacking nose was installed on the front of the tunnel to minimize the reaction and guide the soil inward. The jacks applied equal tension on the cables as excavators inside the tunnel cleared a path by moving soil onto a conveyor belt which dumped on the other side. The jacking operations took place over 8 days with no disruption to overhead traffic.

Key Success Factors

When applicable, accelerated sequences, like the sliding or lifting of pre-constructed structures, make for non-traditional methods which can offer a significant edge in safe work, scheduling and in minimizing traffic disruptions.

Aside from minimizing traffic disruptions, this solution also helped ensure quality and safety and provide overall program and cost savings.

Why It Matters

Freyssinet USA is proud to have contributed to a landmark development for one of the world’s most revered sporting venues. This project exemplifies how innovative tunnel sliding techniques can deliver high-impact results with minimal disruption.

Tunnel Solutions

Tunnels are long-term investments, often exceeding their intended lifespan. Harsh conditions, especially water infiltration, accelerate deterioration. Freyssinet provides expert solutions to restore integrity and extend service life through advanced waterproofing and reinforcement.
Learn More

Heavy Lifting and Handling

Freyssinet’s heavy lifting division delivers customized solutions for moving large structures by integrating multiple engineering disciplines—from the initial design phase through execution.
Discover Our Solutions

Tunnel Solutions

Tunnels are long-term investments, often exceeding their intended lifespan. Harsh conditions, especially water infiltration, accelerate deterioration. Freyssinet provides expert solutions to restore integrity and extend service life through advanced waterproofing and reinforcement.
Learn More

Heavy Lifting and Handling

Freyssinet’s heavy lifting division delivers customized solutions for moving large structures by integrating multiple engineering disciplines—from the initial design phase through execution.
Discover Our Solutions

Contact Freyssinet Today!

Thank you for your interest in Freyssinet, Inc. To discuss a specific project, sign up for our newsletter, schedule a presentation, or request other information, please fill out the form below and we will contact you shortly.

  • *Mandatory fields
  • This field is for validation purposes and should be left unchanged.