WestConnex is part of an integrated transport solution to address the needs of a growing city
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Latest news See all
Heritage items now available to community
New M5 Draft Urban Design and Landscape Plan out now
M4-M5 Link mid tunnel dive site investigation update
Community Grant Scheme applications close Friday, 26 May 2017
Closure of Concord on-ramp to M4
Be Bold for Change
WestConnex partner with the GIANTS
New M5 tunnelling starts at Arncliffe and Bexley North
What's happening now
Improving the wellbeing of Sydney’s homeless with Wests Tigers and Exodus
Wests Tigers has teamed with local Ashfield charity, the Exodus Foundation, to deliver a wellbeing program for homeless Sydneysiders.Over six weeks, Wests Tigers’ staff...
Fighting fit at any age
In January 2017, Sydney Motorway Corporation provided a grant to Concord Senior Citizens Club to purchase four new playing tables for its table tennis group, so the...
Helping pre-schoolers have the best possible start to school
Sydney Motorway Corporation will help 20 pre-schoolers with hearing loss within the WestConnex corridor to go through The Shepherd Centre’s Ready Set Go school readiness...
Seeking expressions of interest for the M4 East Air Quality Community Consultative Committee
Sydney Motorway Corporation (SMC) is in the process of establishing an Air Quality Community Consultative Committee (AQCCC) to provide input and advice on the location of air...
Our commitment to protecting local heritage is enshrined in the WestConnex Sustainability Strategy includes an overarching objective to “protect and enhance the natural...
Skills and training
As the organisation delivering WestConnex, Sydney Motorway Corporation is driving initiatives and opportunities that build skills, provide employment opportunities and...
Learn more about the M4 East: information centre open
The M4 East Community Information Centre is now open and located on the ground floor at 52 Railway Parade, Burwood.Come along to speak to a member of our project team about...
M4 East Urban Design and Landscape Plan
The M4 East team would like to thank you for taking the time to provide feedback on the project’s draft Urban Design and Landscape Plan (UDLP). The...
Widening the existing M4 Motorway from Parramatta to Homebush...
Extending the M4 Motorway in tunnels between Homebush and...
King Georges Road Interchange Upgrade
Upgrade of the King Georges Road Interchange between the M5...
Photos & Videos
Keeping our city moving
Tunnelling begins at Bexley North
New green space in St Peters
Cleaning up the Alexandria landfill site
New inner west park and tunnel link
Upgrade at King Georges Road interchange takes shape
New life for historic sandstone
The Hulk finishes M4 Widening work
Angelo from Granville
M4 Widening equipment goes west
Tunnelling begins in Homebush
FAQs See all
WestConnex is generating more than 18 hectares of new open space for communities in the inner west.
We sometimes use parks and other government-owned land during construction. This helps us to avoid the acquisition of private property. When we use green space during construction, we always try to return it for community use when construction is finished.
Traffic modelling tells us the expected demand for WestConnex and the number of traffic lanes needed. The motorway has been designed to meet traffic demand now and in the future.
The number of lanes varies across the project:
- M4: we are widening the M4 Motorway from three lanes in each direction to four lanes in each direction between Parramatta and Homebush. The new M4 East tunnels between Homebush and Haberfield will be three lanes in each direction.
- New M5: when the tunnels open, there will generally be two lanes in each direction between Kingsgrove and St Peters. The tunnels can accommodate three lanes in each direction in future, with additional approvals needed for this change.
- M4–M5 Link: the number of lanes for this project is still being determined as part of our early design work.
For surface road sections of the motorway, including the widened M4, the speed limit will generally be 90km/h. In tunnels, the speed limit will be 80km/h, the same as for other tunnels in Sydney. A small section connecting to Sydney Airport may have a lower speed limit.
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