Harbouring our best work

The New South Wales Government’s Sydney Harbour Tunnel upgrade is one of Australia’s most complex infrastructure projects — and the kind of challenge Aliaxis embraces.

For this high-stakes assignment, Aliaxis customised offtake saddle fittings to resolve the tunnel’s specific technical requirements. These specialised saddles, alongside the StormPro® drainage system and PVC electrical conduit, will support main tunnel drainage and surface water and electrical management. The project marks the first new road crossing under Sydney Harbour in over 30 years and showcases Aliaxis’ ability to engineer solutions for large-scale, demanding infrastructure environments.