About The Regency To Pym Project
The Regency Road to Pym Street project is a major component of the North South Corridor South Road Superway, one of the largest road infrastructure investments in South Australian history. The project forms part of a long-term plan to create an uninterrupted, motorway-standard route through metropolitan Adelaide, removing traffic lights and at-grade intersections along one of the city’s most congested and freight-critical corridors.
Bridge Girder Fabrication Requirement
The elevated road structure required significant structural steel fabrication capability. Bowhill Engineering was engaged to fabricate 120 bridge girder sections with a combined weight of 1,500 tonnes, delivering a scope that demanded precision at every stage from early design input through to final surface treatment and transport logistics.
Construction was carried out by McConnell Dowell and Bardavcol, with Bowhill’s steelwork forming the structural backbone of the completed superway infrastructure.
Our Solution
Early design optimisation helped set this project take off in the right direction. The macro level trade considerations such as mill plate sheet size availability, cross section and girder length/weight limitations, and weld joint design were discussed early at the main contractor tender stage.
Regency Road to Pym Street Project, as part of the North South Corridor South Road Superway, construction by MCD / Bardavcol, Adelaide, Australia – images taken on 7 Jan 2021
Bowhill were happy to provide this early input with no obligation and extend this service to other contractors who would like macro level trade focused feedback on concept designs.
Projects of this scale and complexity don’t leave room for late-stage design changes. Our early design engagement demonstrated how front-end collaboration with the principal contractor produces better outcomes for everyone involved.
About Bowhill Engineering
Bowhill Engineering is a family-owned business specialising in heavy and complex structural steel fabrication. We are a CC3-certified structural steel fabricator with a long history of delivering bridge and transport infrastructure projects across South Australia.
Our team includes qualified boilermakers, project managers, structural welders, CNC operators, and robotic welding specialists, supported by a rigorous apprenticeship and training program that keeps our skills pipeline strong. We’ve built our reputation through precision, innovation, and collaboration – qualities that continue to position us as leaders in the industry.
What sets us apart:
- Complete project capability – Design optimisation, fabrication, surface treatment and installation managed by the experienced team
- Advanced manufacturing technology – Robotic welding, CNC machining and automated fabrication equipment built for complex structural work
- Heavy lift capacity – Structural components from 5 tonnes to 140 tonnes, supported by overhead cranes up to 100 tonnes
- Industry certifications – AS5131 CC3 structural steel fabrication, ISO9001, AS4801, ISO14001 and Weld Australia AS3834.2
- Proven project history – Major infrastructure delivered across Australia, including Torrens to Darlington at 6,600 tonnes, Inland Rail bridges and public transport infrastructure
- Regional strength, national reach -Based in South Australia, delivering to Victoria, NSW, NT, and across Australia
- Early contractor engagement – Value engineering, design feedback and integrated project delivery from the earliest stages
- Safety and compliance – Strong safety culture and environmental compliance maintained across every project we take on
Together we thrive. We invest in our people, our technology and our regional community to deliver structural steel solutions that matter.
Other Projects & Solutions
We have delivered structural steel fabrication for multiple major infrastructure projects including:
- Darlington Bridge 3, 14 & Temporary Steelwork– Value engineering delivering cost savings on bridge construction temporary works for SA’s largest road project
- Light River bridge replacement – Heavy bridge fabrication and installation for regional infrastructure upgrade
- Oaklands Railway Station – 200 tonnes of complex architectural steelwork, canopy structures, and pedestrian bridge for public transport infrastructure
