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Reclaim Tunnels and Haul Road Overpasses

TechSpan® is the leading precast tunnel system in the mining industry today.


Capable of carrying extreme loads from the highest mineral stockpiles and heaviest mine plant, TechSpan® is the ideal solution for reclaim tunnels, conveyor or rail tunnels under haul roads, drive tunnels, portals and many other applications where clearance is needed under a trafficable route or facility.


Tailored specifically to the clearance envelope and loading, TechSpan®'s funicular shape, custom designed, three-pinned arrangement gives  a versatile, robust and durable  segmental concrete tunnel solution that is fast and cost efficient to install, requires minimum maintenance and is deliverable to remote locations anywhere in the world. 

Other Interesting Case Studies


Southern Gobi Desert, Mongolia

New Acland Coal Expansion

Darling Downs, QLD, Australia

Cloudbreak Reclaim Tunnel

Pilbara Region, WA, Australia

Hazelwood Mine

Morwell, VIC, Australia