M4 Widening
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M4 Widening
Creating 2000 jobs
to widen M4
Easing congestion in Clyde,
Granville & Auburn
More reliable trips
for businesses
Creating 2000 jobs
to widen M4
Easing congestion in Clyde,
Granville & Auburn
More reliable trips
for businesses
(Parramatta to Homebush)
WestConnex M4 Widening involved building an additional lane in each direction on the M4 Motorway between Parramatta and Homebush. The project is about 7.5km long.
Environment and planning
Project history
- 15 August 2017 - Distance-based tolls commence on the new M4.
- July 2017 - M4 Widening opened, one month toll-free.
- February 2017: New viaduct open to traffic, with work on resurfacing old westbound carriageway underway.
- January 2017: New interchange at Homebush Bay Drive opened to traffic. Cars travelling south on Homebush Bay Drive can access M4 Motorway westbound via a 'G-loop', removing two sets of traffic lights.
- March 2015: Construction work on the M4 Widening started.
- December 2014: The contract to build the M4 Widening was awarded.
- December 2014: The project was approved by the Department of Planning and Environment subject to a number of conditions.
- October 2014: A Submissions and Preferred Infrastructure Report was prepared in response to submissions received during the EIS exhibition period. The report was considered by the Department of Planning and Environment and informed the Minister for Planning, in the projects approval assessment.
- August to September 2014: The M4 Widening Environmental Impact Statement was exhibited for community comment and a community update and environmental overview were prepared.
- March 2014: A shortlisted of contractors to build the M4 Widening was announced.
- November 2013: Expressions of interest to construct the M4 Widening were issued.
- October to November 2013: Community consultation was carried out on the motorway concept design and the feedback received is outlined in the M4 Widening Community Issues Report.
- September 2013: The planning application for the M4 Widening was lodged with the Department of Planning and Environment.
Project stats
Project value^:
Current status:
Construction start:
Open to traffic:
Current traffic projections*:
* Based on WestConnex Road Traffic Model V2.1, WestConnex Updated Strategic Business Case, November 2015
^ WestConnex Updated Strategic Business Case, November 2015
Industry partners
Design and construct contract: CPB Contractors and Rizzani De Eccher Joint Venture
Operations and maintenance contract: Maintenance during construction: CPB Contractors and Rizzani De Eccher Joint Venture
Operations and maintenance after project completion: Fulton Hogan and Egis Joint Venture
Tolling contracts: Roadside tolling equipment: Kapsch TrafficCom Australia
Back-office services and systems: Roads and Maritime Services
What's happening now
New toll prices for M4
Distance-based tolls apply on the New M4, the fastest route between Parramatta and Homebush. New toll prices on the M4 begin on 1 January 2019. While tolls for many...
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Applications open for the latest round of WestConnex community grants
Community groups and organisations are being encouraged to apply for the latest round of Sydney Motorway Corporation’s (SMC) Community Grant Scheme which supports local...
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M4 night closures continue
Another round of night closures of the M4 Motorway is planned for this week as work continues to widen and increase capacity of the Motorway as part of WestConnex.The M4 is...
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Community Partner Wests Tigers wins 2018 NRL club community program
WestConnex community partner, Wests Tigers have been awarded the 2018 NRL Club Community Program of the Year, announced as part of the NRL’s national community awards.Wests...
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As Sydney sleeps, WestConnex work ramps up
As the sun sets across our great city and most workers call it a day, construction activity ramps up on one of the southern hemisphere’s biggest infrastructure...
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WestConnex grant drives training at The Children’s Hospital, Westmead
Nursing and medical staff at the Paediatric Intensive Care Unit of The Children’s Hospital at Westmead are benefiting from the delivery of new simulation technology which is...
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Community partner Wests Tigers launch NRL-first autism friendly room
In an NRL first, WestConnex community partner Wests Tigers have established a new autism friendly space at all ANZ Stadium home games, for children with autism and their...
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WestConnex and GIANTS kicking goals for western Sydney communities
Sydney Motorway Corporation’s (SMC) WestConnex community partnership with the GIANTS will reach new heights this year with the club’s successful Stand Tall workshops to be...
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Local updates
To learn about work in an area or for a project, you can access a range of documents including work notifications, management plans, compliance tracking reports, maps and permits.
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Photos & Videos
WestConnex supporting GIANTS Care
WestConnex: 2017 a year in review
New M4: Concord Road girder lift
WestConnex - faster, safer, more reliable
Engineers Australia Experience It! conference supported by WestConnex
Keeping our city moving
The Hulk finishes M4 Widening work
M4 Widening equipment goes west
FAQs See all
Sydney Motorway Corporation is committed to making a meaningful and long term contribution to the communities in which it operates by investing in community-focussed programs during construction of WestConnex.
Legacy is defined as delivering sustainable and lasting benefits to the local economy, community and natural environment.
Legacy projects will be identified and developed in consultation with the community, local councils and community groups.
The planning approval to construct each stage of WestConnex includes conditions to incorporate and deliver social and environmental outcomes including the requirement for an Urban Design and Landscaping Plan, a Social Cohesion Plan, and a Residual Land Management Plan.
Only once a year. Unlike the majority of New South Wales motorways which increase quarterly, WestConnex tolls increase annually on 1 January. There will be a maximum increase per annum of four per cent or the consumer price index (CPI) – whichever is greater – until 2040. After that, CPI will apply. Read more about WestConnex tolls.
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.
Distance based tolling will begin on the M5 East and the New M5 when the New M5 opens to traffic in early 2020.
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 WestConnex tolls.
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