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Latest news See all
Major milestone for M4-M5 Westconnex tunnel link
Bankstown students take a GIANT leap into construction
Rozelle Interchange shortlist announced
Ignore the beep – systems testing on the M4, east of Homebush Bay Drive
Final stage of WestConnex link approved
WestConnex and GIANTS kicking goals for western Sydney communities
Changed traffic conditions at Parramatta Road and M4 intersection at Concord
Changed traffic conditions at the Sydney Park Road roundabout, Alexandria
What's happening now
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...
Widened the existing M4 Motorway from Parramatta to Homebush from three to four lanes in each direction. WestConnex M4 Widening involved building an additional lane...
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 Submissions and Preferred Infrastructure Report now available
Following the public exhibition of the M4-M5 Link Environmental Impact Statement (EIS), a Submissions and Preferred Infrastructure Report (SPIR) has been prepared to respond to...
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...
M4-M5 Link Mainline Tunnel
Tunnels connecting to the New M4 at Haberfield and New M5 at St Peters via Rozelle.The M4-M5 Link is the final and most critical component of WestConnex, featuring twin...
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...
Widened the existing M4 Motorway from Parramatta to...
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
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.
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.
WestConnex has a distance-based tolling system, like the existing M7 Motorway. Motorists pay only for the sections of the motorway they use and a maximum cap applies.
Tolls will be introduced as each section of WestConnex opens to traffic. The new M4 opened to traffic in July 2017, and distance-based tolls commenced in August 2017.
Cars will pay one third of the heavy truck toll, reflecting the greater wear and tear trucks have on the motorway (an approach that is consistent with other Sydney motorways).
For the current toll estimates, see Using WestConnex.
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