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Warringah Freeway Upgrade

Upgrading one of Australia’s most congested roads

  • 9

    Complex Bridges

  • 12

    Retaining Walls

  • 3

    Cut & Cover Tunnels

  • Sydney, New South Wales

    Sydney, New South Wales

Freeing up the freeway

The Warringah Freeway Upgrade is improving one of Sydney’s busiest roads, making it safer and easier to use, and more efficient and reliable for the benefit of all including public transport users. The upgrade will include new civil construction and bridges, retaining structures, and cut and cover tunnels.

We carried out proof engineering for complex structures and certification of designs. These included 9 bridges with steel and concrete composite superstructures and deck structures, 12 retaining walls, and 3 cut and cover tunnels forming connections to the Western Harbour Tunnel and Beaches Link. We then carried out associated geotechnical and structural independent calculations, design checks, and certifications.

When complete, the upgraded freeway will connect to the Beaches Link and Western Harbour Tunnel, making travel faster, easier, and safer around Sydney.

At a Glance

Offices
Client
  • CPB Contractors
  • Downer
Meet Our Team

Peter Boesch, Group Leader, Bridges, Ports and Maritime, Practice Leader, Bridges

Bridges connect people and communities—being part of building such connections inspires me and drives me to improve results wherever I can.
Peter Boesch Group Leader, Bridges, Ports and Maritime, Practice Leader, Bridges Read More

Sanka Ekanayake, Principal Geotechnical Engineer/Team Leader – Geotech Design

Engineering is not only about being technically competent, but also about understanding human nature and committing to common goals.
Sanka Ekanayake Principal Geotechnical Engineer/Team Leader – Geotech Design Read More

Zac Philippa, Digital Service Lead - Community Development, Australia / Civil Engineer

Regardless of how complex an engineering problem looks, I’m always looking for the simplest design solution possible.
Zac Philippa Digital Service Lead - Community Development, Australia / Civil Engineer Read More

Peter Boesch

Group Leader, Bridges, Ports and Maritime, Practice Leader, Bridges

Sanka Ekanayake

Principal Geotechnical Engineer/Team Leader – Geotech Design

Zac Philippa

Digital Service Lead - Community Development, Australia / Civil Engineer

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