Secondary steelwork and fire panelling for the new WestConnex M5 tunnel

System Benefits

  • 170t Structural Steel
  • 1300m2 Fire Panelling

Brolton Group was awarded the contract to supply and install the secondary steelwork and fire panelling for the new WestConnex M5 tunnel at St Peters Interchange, Bexely, Kingsgrove and Arncliffe


Works included: manufacture drawings, fabrication, testing and installation of the steelwork and fire panels

Due to the location and area of works involved in the installation of the Secondary Support Steelworks, Brolton Group was required to close access to other Contractors and construction traffic to each of the work areas in

the tunnel. A detailed traffic management plan was developed to identify the required closure procedures, barricade locations, access points and detour routes

Detailed site surveys of the tunnel surfaces was essential to confirm all measurements for the prefabrication and processing of support steelwork and fire panels. The fire panels were pre-processed in-house using Brolton's i510-G2 water jet cutter

Approximately 175 tonnes of structural steel and 1300m2 of fire panelling was installed.

Brolton's successful completion of the secondary steelwork and fire panel supply, manufacture and installation lead to additional contract awards for works such as cable support structures, fan supports and various other works in and around the new M5 tunnel.

Solution Overview

The WestConnex New M5 involved the construction of major infrastructure to relieve congestion on Sydney’s existing M5 East corridor and improve connectivity from the M5 corridor to the Sydney Gateway precinct comprising Sydney Airport, Port Botany and Southern Sydney.

Brolton Group was awarded the contract to supply and install the secondary steelwork and fire panelling for the new WestConnex M5 tunnel at St Peters Interchange, Bexely, Kingsgrove and Arncliffe

Project Brief Westconnex M5 (pdf 517.83 KB)
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