Sydney Metro West Set to Lower 5,316 Tonnes of Rail
11.08.2026
AUSTRALIA: Sydney Metro West is preparing to lower 5,316 tonnes of rail 27 metres into the Sydney Olympic Park station box as the 24-kilometre project moves from tunnelling into fit-out.
The NSW Government says a precision lifting operation will move 4,376 individual 20-metre rail sections from the surface to the station floor. Twenty skilled workers are then expected to spend three months welding the steel before it is progressively moved into the tunnels.
4,376 rail sections will be welded underground
After the rail reaches the station box, welded sections will be moved through the tunnels using a specialised road-rail vehicle excavator. Sydney Metro’s August construction update confirms that rail welding will progress inside the Sydney Olympic Park box while rail movements continue through tunnels and other station sites; tunnel operations, maintenance and rail movements are scheduled around the clock.
The confirmed sequence is:
| Stage | Confirmed work | Status / timing |
|---|---|---|
| Rail lowering | 5,316 tonnes of rail in 4,376 sections, each 20 metres long, lowered 27 metres | Initial installation stage at Sydney Olympic Park |
| Welding | 20 workers weld the rail together in the station box | Over the next three months |
| Tunnel movement | Welded rail moved with a specialised road-rail vehicle excavator | Progressively through tunnels and station sites |
| Track base | Structural track base slab construction | Starts after the rail-movement stage |
| Systems fit-out | Electrical and mechanical fit-out | Scheduled to follow by the end of 2026 |
Track and systems work extends across 60 kilometres
The Sydney Olympic Park operation is the entry point to a much larger Linewide programme. Across Sydney Metro West, 60 kilometres of track will be installed in the twin tunnels and the Clyde Stabling and Maintenance Facility, including four crossovers, one junction and one turnback.
Sydney Metro’s Linewide project factsheet says John Holland’s package also covers the complete fit-out of tunnels, cross passages, caverns and stations, plus the 38-hectare Clyde facility. The same programme includes 65.5 kilometres of overhead wiring, around 900 kilometres of mechanical and electrical power cabling, and fit-out of 92 cross passages for operational and emergency access.
Four primary construction access sites are planned at Clyde, Sydney Olympic Park, Burwood North and The Bays. The indicative Linewide sequence then moves through track and systems installation, tunnel and station fit-out, and testing and commissioning before first passenger service, with Sydney Metro targeting a 2032 opening.
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