Progress in the Airport Line's twin-bored tunnels has really gained momentum, with 90 per cent of the tunnel invert slab now poured and cured.
The McGowan Government is building Western Australia's economy back-up from the pandemic by embarking on Building for Tomorrow, the biggest transport infrastructure program WA has seen.
Turnback will allow high frequency services on Fremantle and Airport lines
The first kilometre of track has been laid between Redcliffe and Airport Central stations.
Tunnel fit-out is an essential part of the project and includes installation of rail infrastructure and electrical, mechanical, hydraulic, safety and communications systems.