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In planning

Project Timeline

M4 East

(Homebush to Haberfield)

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 long (with 5.5km of the motorway in tunnel).
The M4 East is the first underground section of WestConnex. It will connect to the widened M4 and extend it via twin motorway tunnels from Homebush to Haberfield with three lanes in each direction. The M4 East will alleviate the frustrating delays and gridlock that motorists face daily when they come off the M4 and hit a standstill on Parramatta Road.

Environment and planning The M4 East received planning approval in February 2016 and work started in March 2016.  


Project history

  • November 2016 - Mainline tunnelling begins at Cintra Park tunnel construction site.
  • 26 October 2016 - NSW Premier Baird and NSW Minister Gay together with Federal Minister Fletcher attend the opening of the M4 East and New M5 Training Academy at Homebush.   
  • 19 September 2016 - Draft Urban Design and Landscape plan released for a month-long public comment period.
  • September 2016 - G-Loop construction in Reg Coady Reserve underway. The G-loop will significantly reduce the travel distance for spoil-haulage vehicles.
  • 18 August 2016 - Four piling rigs in progress at the Homebush Bay Drive construction site.
  • 8 August 2016 - Roadheader is installed at the Underwood Rd tunnelling construction site.
  • 25 July 2016 - Parramatta Rd Ventilation Facility piling commenced. 
  • 18 July 2016 - Launch of tunnelling excavation at Cintra with Premier Baird and Minister Gay. 
  • 16 July 2016 - Cintra Park tunnelling commenced. 
  • June 2016 - Acoustic shed steel work complete at Underwood Rd and Cintra Park tunnel construction sites. 
  • May 2016 - Construction work commences at all tunnel and surface works sites. Two roadheaders and a rock bolting rig delivered to the Cintra Park tunnel construction site.
  • April 2016 - Site establishment works carried out at Sydney St, Northcote St and Concord Rd. 
  • 4 March 2016: A 'breaking ground' ceremony was held at Cintra Park in preparation for the first WestConnex twin tunnels linking Homebush and Haberfield at Cintra Park in Concord. The ministerial event was held on site to witness the beginning of foundation works.
  • 19 February 2016: Planning approval for the M4 East project was received from the NSW Minister for Planning.
  • 7 February 2016: WestConnex delivered its first completed project to the local community; new hockey facilities at St Lukes Park in Concord.
  • December 2015: 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.
  • 9 September 2015: An Environmental Impact Statement (EIS) was on display for 55 days for public comment. The EIS describes the key features and benefits of the project, outlines the environmental and social impacts that may occur during construction and operation and details how these will be managed.
  • June 2015: CPB Contractors Samsung John Holland Joint Venture was selected to deliver the M4 East from Homebush to Haberfield.
  • April 2015: WestConnex agrees to build new sporting fields and amenities at St Lukes Park, Concord in place of the Cintra Park hockey field displaced by an M4 East tunnel site. 
  • August 2014: A shortlist of three consortia was announced and geotechnical investigations were carried out to support the tender process.
  • May 2014: Expressions of interest were called to build the M4 East.
  • 17 February 2014 – Community consultation on the M4 East concept design concluded and the community feedback report has been published.
  • November 2013: The planning application for the M4 East was lodged with the Department of Planning and Environment.

Project stats

Project value: 3.802 billion^
Current status: In construction 
Construction start: March 2016
Open to traffic:  2019^
Current traffic projections*: 132,400 vehicles per average weekday by 2031

* 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, Samsung C&T Corporation and John Holland Joint Venture 
    Operations and maintenance contract: 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

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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FAQs See all

For each WestConnex project, a series of documents including details of the measures to appropriately manage and reduce the impact of the project on local communities. These include: 

  • The Environmental Impact Statement (EIS) – the EIS explores the potential environmental impact and outlines measures to manage and reduce this impact based on best practice and expert advice. 
  • The Submissions Report – this responds to all feedback received on the EIS during exhibition. It provides additional mitigation measures needed in response to new information, additional assessment or community feedback. 
  • The Conditions of Approval – in approving each project, the NSW Minister for Planning issues a range of conditions that must be adhered to during and after construction, to ensure impact of the project is mitigated. 
  • The Construction Environmental Management Plan and sub plans – before we start major work, these are prepared to provide a detailed approach to the management of environmental issues. The Department of Planning and Environment must approve these before major construction work can start. They build on the mitigation and management measures established in the EIS, the Submissions Report and Conditions of Approval.

We always notify local communities before we start a new section of work and before we do any out-of-hours work. 

Tolls will be introduced on the M4 between Church Street, Parramatta and Homebush Bay Drive, Homebush when this section opens to traffic in 2017. 

Tolls will apply to new sections of WestConnex, including the M4 East, New M5 and M4–M5 Link once these new motorways open to traffic between 2019 and 2023. 

We are also carrying out minor upgrades to the M5 East and a toll will also be introduced on this motorway to account for the massive improvements in travel time and reliability motorists will experience as a result of WestConnex. 

To maintain access to Sydney Airport’s International Terminal, trips using Marsh Street ramps will remain toll free.

WestConnex projects will open to traffic in stages between 2017 and 2023. See our Interactive map