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

2025-11-20T07:54:08+00:00
Inland Rail Victoria section Geoquest provided MSE walls, precast facing panels, bridge deck slabs and truss slabs across the breadth of the project, including:

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.

2025-02-20T01:09:57+00:00
Aerial view of new construction works completed for the South Geelong to Waurn Ponds Duplication Rail Project

Victoria’s Big Build – Rail Transformation

The South Geelong to Waurn Ponds Duplication Rail Project; supplying 13,700m² of TerraPlus® mechanically stablised earth retaining walls as we play our part in Victoria’s Big Build.

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Latest News & Media

  • Picture of red earth development: Pilbara Ports is progressing the development of a new multi-user facility and logistics hub at Lumsden Point in the Port of Port Hedland. The Lumsden Point development will facilitate the export of battery metals such as lithium and copper concentrates, the import of renewable energy infrastructure including wind turbines and blades, as well as support the growth of direct shipping services to the Pilbara.

Geosynthetics Changing the Game

Geosynthetics are changing the game for infrastructure delivery. Pioneers like Geoquest are taking the lead in the application of these components, creating new project possibilities.

FAQ – Precast Concrete Arches

Precast concrete arches are prefabricated, modular structures assembled on site to form tunnels, bridges, and crossings.

40 Years of Reinforced Earth® in New Zealand

Geoquest has strengthened New Zealand’s infrastructure for 40 years. Clyde Dam and Cromwell Gorge is a benchmark in long‑term geotechnical resilience.

  • 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.

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