Geoquest Australia recently delivered one of its most ambitious precast engineering feats to date—a record-breaking precast concrete arch designed for a tunnel overpass in Boddington, Western Australia.
This time-lapse video captures it’s record-breaking installation.
With a 21m span, the precast concrete arch is not only among the largest of its kind in the Southern Hemisphere—it’s also a testament to precision engineering, smart construction logistics, and scalable design. Built using Geoquest’s proprietary TechSpan® precast arch system, the structure now enables the safe and efficient passage of heavy mining vehicles over a public road, supporting critical operations at one of Western Australia’s major mining sites.
From design to factory floor, final delivery and installation, the creation of this precast concrete arch relied on teamwork and collaboration. Watch the installation process in the time-lapse video, the footage shows how planning, engineering expertise, and coordinated delivery come together to make complex infrastructure possible.
Engineering Innovation at Scale
Delivering this monumental precast arch structure required:
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Advanced custom design and modelling
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Large-scale precast concrete production
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Carefully coordinated on-site delivery and placement
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Strict compliance with mine safety and public infrastructure requirements
Every element of the TechSpan® precast concrete arch was designed, engineered and manufactured in Australia by the Geoquest team, demonstrating our commitment to quality, innovation, and client collaboration.
Why Precast Concrete Arches?
Precast arch systems like TechSpan® offer:
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Rapid on-site installation
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Minimal disruption to surrounding infrastructure
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Long-term durability and load-bearing capacity
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Adaptability to mining, road, and rail environments
Looking for a partner on your next large-scale infrastructure or tunnel project?
Contact Geoquest to learn how our precast concrete solutions can help deliver faster, safer, and more sustainable outcomes.
Read more about this mining precast project in detail
Read more about the TechSpan precast concrete arch system.
