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Latest news See all
Changed traffic conditions on Sydney Park Road at Alexandria
Applications open for the latest round of WestConnex community grants
Toll gantry installation at the King Georges Road on and off ramps
Community Partner Wests Tigers wins 2018 NRL club community program
WestConnex grant drives training at The Children’s Hospital, Westmead
Sydney's New M5 take shape, both above and below ground
Local schools dig deep with WestConnex
WestConnex provides fast lane to licence with KARI partnership
What's happening now
New M5 Public Art Strategy
Have your sayThe New M5 Draft Public Art Strategy aims to inform and encourage discussion on what public art opportunities should be realised for the New M5. The public art...
Increase in open space along the New M4 corridor
The Legacy Project aims to provide safe, vibrant and high quality open spaces for communities impacted by construction of the New M4 by delivering 5.76 hectares of additional...
New M4 tolls
Stretching 7.5km between Parramatta and Homebush and having increased from six to eight lanes, the New M4 is an even faster way to bypass 28 sets of traffic lights on...
M4-M5 Link Tunnels
Also referred to as M4-M5 Link Mainline Tunnels.Tunnels connecting the New M4 at Haberfield and the New M5 at St Peters. The M4-M5 Link is being delivered in two...
King Georges Road Interchange Upgrade
Upgrade of the King Georges Road Interchange between the M5 West Motorway and the M5 East Motorway at Beverly Hills, in preparation for the New M5 project.Work was fast-tracked...
Partnering with communities
As part of the commitment of the broader WestConnex project to connect communities, Sydney Motorway Corporation has established the Community Connections Program....
Duplicating the M5 East from King Georges Road Interchange Upgrade at Beverly Hills to a new interchange at St Peters. The New M5 will provide twin underground motorway...
Extending the M4 Motorway in tunnels between Homebush and Haberfield via Concord. Includes provision for the future connection to M4–M5 Link. The project is about 6.5km...
Extending the M4 Motorway in tunnels between Homebush and...
King Georges Road Interchange Upgrade
Upgrade of the King Georges Road Interchange between the M5...
Duplicating the M5 East from King Georges Road Interchange...
Photos & Videos
WestConnex supporting GIANTS Care
Wests Tigers - A faster way to the game with WestConnex
First tunnel breakthrough on New M5
WestConnex: 2017 a year in review
New M4 tunnel drivethrough
Millions of tonnes of spoil removed to build the New M5 tunnels
WestConnex drives Western Sydney jobs
New M5: Super T girder lift
New M4: Concord Road girder lift
WestConnex - faster, safer, more reliable
M4-M5 Link: Rozelle Interchange and Iron Cove Link
M4-M5 Link mainline tunnels animation
First tunnel breakthrough - SMC exclusive
Community Connections Program
Engineers Australia Experience It! conference supported by WestConnex
New M4 tunnel breakthrough
WestConnex tunnelling update
Ramsay Street cut and cover
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
Transferring vehicles from surface roads into free-flowing underground motorway tunnels will improve the air quality along existing surface roads where traffic is reduced.
For example, an independent air quality assessment detailed in the M4 East EIS found air quality will generally improve along the Parramatta Road corridor because of traffic shifting to WestConnex.
Motorists will have a smooth motorway to travel on, rather than being stuck in congested, stop-start traffic with traffic lights, and this will reduce emissions.
Our tunnels are also designed to reduce emissions, as they are generally flatter and less steep at the entries and exits.
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: the M4 Motorway has been widenedfrom 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 M4-M5 Link will provide twin underground tunnels with four lanes in each direction between Haberfield and St Peters.
We fully recognise the importance of Sydney Park and the investments that the City of Sydney Council and others have made in recent years.
A strip of land owned by Roads and Maritime Services adjacent to Sydney Park is being used to widen Euston Road as part of local road upgrades. This is not part of Sydney Park.
As outlined in the City of Sydney’s own management plan for Sydney Park, this land is dedicated road space and has been subject to a long-standing road widening reservation.
A small boundary strip, adjacent to the road reserve, is also required for the local road widening, however this is more than offset by the additional 8.5 hectares of open green space being created at St Peters Interchange.
Two hectares of this open green space will be directly connected to Sydney Park via a land bridge over Campbell Road.
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