The WestConnex New M5 is one of three stages of a larger infrastructure project known as WestConnex. The WestConnex project is a 33-kilometre underground motorway currently being constructed in Sydney’s Inner West.
The New M5 comprises of approximately 10-kilometres of dual underground motorway from Kingsgrove to St Peters. The tunnels are essentially two-lane tunnels future proofed for three-lanes, except between Arncliffe and St Peters where the excavation increases to four-lane tunnels allowing for a future connection with a tunnel currently being planned under the name of F6 motorway.
The tunnels spans vary from approximately 13 m for the two-lane tunnels to approximately 20 m for the four-lane tunnels with some local enlargements for jet fans, breakdown bays, longitudinal egress passages etc. The largest tunnel roof spans occur at two Y-junction caverns located at Arncliffe and St Peters with approximately 30 m width.
Key Speaker – Brodie Aitchison, Tunnel Engineer, Aurecon
Brodie is a Tunnel engineer with Aurecon with over 7 years post graduate experience in tunnelling and underground projects. He has experience in feasibility, tender, detailed design and construction phase support. Brodie has been extensively involved in the design and construction of the Legacy Way Tunnel and WestConnex New M5 Tunnel. Brodie was the lead designer for the Kingsgrove temporary and permanent works tunnels on the WestConnex New M5 Project.
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