The Gamuda Australia and Laing O’Rourke Consortium was awarded the Western Tunnelling contract to deliver nine kilometres of twin metro rail tunnels between Sydney Olympic Park and Westmead.
This is the second major tunnelling package awarded on the city-shaping project, with twin tunnels between The Bays and Sydney Olympic Park following the contract awarded to Acciona Ferrovial Joint Venture.
The Western Tunnelling contract includes:
Twin 9km tunnels from Sydney Olympic Park to Westmead;
A Tunnel Boring Machine launch site at Rosehill, tunnelling toward Sydney Olympic Park and relaunched toward Westmead;
A services facility and crossover structure at Rosehill for fresh air ventilation and emergency egress;
Tunnel portal and dive excavation at Clyde Services and Maintenance Facility;
Earthworks, retaining structures, drainage and utilities corridor for the Clyde Maintenance Facility;
Two spur tunnels connecting the dive structure to the Main tunnel in at Clyde;
Excavation and civil works for Parramatta and Westmead Stations; and
A segment manufacturing facility at Eastern Creek.
Completion of the contract is expected by the end of 2025
