Our scope on the SB31 Bridge included the supply, fabrication, and onsite assembly of three steel trough girders. The bridge consists of six segments – two for each girder – and four external bracings.

We completed the loading and transportation of the completed segments to designated assembly areas; the design, installation, and removal of temporary works in the workshop, including jigs, trestle, and temporary support systems; and the protective treatment of the steelwork in accordance with the relevant specifications and the design requirements.

Following the successful delivery of the SB31 Bridge, Civmec was contracted to undertake works on the Viaduct. The scope included the supply, processing, fabrication, assembly, surface treatment and delivery to site of large steel bridge beams, as well as the site splicing and installation of bracing for the two bridge spans. Each of the bridge spans contain 20 girder segments. Segments were manufactured into five 55-metre long, 65-tonne girders and delivered to site at night.

The girders are the longest steel girders delivered into metropolitan Sydney by Civmec.

The project showcased our innovation, as we value engineered a solution for the client by taking what were originally designed as ten two-part girders (requiring extensive onsite welding and temporary works) and building them as five single-length girders.