Geoquest has been providing innovative solutions for major infrastructure projects in Australia and New Zealand since 1974.

Geoquest Australia & New Zealand specialises in reinforced backfill applications, soil-structure interaction, precast concrete solutions, advanced geosynthetics and environmental hazard protection.

Project Spotlight

2025-09-17T02:54:57+00:00

Wilman Wadandi Highway

Geoquest Australia showcased its ability to deliver major infrastructure project components on the largescale Wilman Wadandi Highway project in Bunbury, Western Australia.

2025-11-20T07:54:08+00:00

Inland Rail – Victoria

Inland Rail – highlights from the Victorian section of one of Australia’s most significant infrastructure projects. Geoquest contributed MSE walls, precast facing panels, bridge deck slabs and truss slabs.

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Latest News & Media

  • WestConnex Rozelle Interchange at sunset with Sydney Harbour Bridge behind it

WestConnex Rozelle Interchange

Rozelle Interchange was key in Sydney’s transport transformation. View the scale and engineering behind the landmark achievement.

  • Cairns Water Security Project aerial view of site

Cairns Water Security Project

Cairns Water Security Project: design and supply of 875 m² Reinforced Earth™ TerraPlus® retaining walls —equivalent to three tennis courts.

  • EcoStrap HA, sustainable reinforcements for MSE walls, by Geoquest Australia being installed at Diggers Rest Level Crossing Removal project in Victoria.

Resilience through Turn-Key Solutions

How turn-key engineering solutions are reducing risk in a changing climate - resilience through considered geotechnical design and engineering.

  • CBH Avon grain storage, upgraded facility showing new precast concrete walls by Geoquest

CBH Avon Storage Refurbishment

Geoquest supports CBH Avon Grain Storage Refurbishment, a major project boosting capacity in Western Australia’s Wheatbelt.

Precast Deck Slabs for Landmark Bridge

Molonglo River Bridge: 414 precast concrete deck slabs for bridge superstructure - one of the longest weathering steel bridges in Australia.

Low Carbon Concrete Approval for Geoquest

Low carbon concrete 60% SCM mix approved by VicRoads in industry first, supporting a greener, more sustainable future in infrastructure.