Civmec was contracted by Seymour Whyte for the fabrication, offsite trial assembly, delivery and site assembly of a 200 metre long bridge for the Nepean River shared path bridge; the complex structure consisting of over 820T of tubular truss sections.

The bridge is approximately 257 metres long and includes a steel truss main span 200 metres long. The work also involved the construction of approaches and connections to existing local roads. The scope of works involved the supply, delivery, and installation of all fabricated steel components is in accordance with the Shared Path Bridge over Nepean Bridge drawings and specifications, including:

  • main span truss
  • span 1 and span 2 steel trough girders
  • steel deck to main span truss
  • balustrade posts to main span truss and approaches
  • supply and fabrication of temporary works tube cradles and testing rig apparatus
  • circa. 30,000 fabrication hours
  • partial trial assembly of three bays at a time (total length of three bays is circa. 75 metres)
  • the A-frame truss of the bridge is designed to hold up a very large and heavy span.


It has the largest uninterrupted span of any pedestrian bridge in Australia, at 200m long.

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