Pre-cast concrete segments for the Cross River Rail tunnels are now being made at a site in Wacol, south-west Brisbane.
The project will require a total of 25,000 segments to line the tunnels underneath
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Last concrete segments for Sydney Metro completed
The final pre-cast concrete segment has been built for the Sydney Metro railway tunnels.
Manufacturers in a factory next to the rail-line in Marrickville, the concrete walls of the railway tunnels have
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