M4-M5 Link Tunnels

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M4-M5 Link Tunnels

(Haberfield to St Peters)

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 stages:

  • Stage one - construction of the M4-M5 Link Tunnels between the New M4 at Haberfield and the New M5 at St Peters and stub tunnels to the Rozelle Interchange. This stage is being managed by Sydney Motorway Corporation.
  • Stage two - construction of the Rozelle Interchange and Iron Cove Link. This stage is being managed by Roads and Maritime Services.

The M4-M5 Link Tunnels project is the final and most critical component of WestConnex, featuring twin tunnels between the New M4 at Haberfield and the New M5 at St Peters. Each tunnel will be approximately 7.5 kilometres long and able to accommodate up to four lanes of traffic in each direction. The M4-M5 Link Tunnels will be delivered as a stand-alone project, and provide an additional 2.5 hectares of green space in St Peters.

Environment and planning 

The M4-M5 Link Tunnels received NSW planning approval in April 2018. 

    Project history 

    Project stats

    Current status: Approved
    Construction start: 2018
    Open to traffic (pending planning approval): Early 2023^
     

    * Based on WestConnex Road Traffic Model V2.1, WestConnex Updated Strategic Business Case, November 2015
    ^ WestConnex Updated Strategic Business Case, November 2015
    ^^ Between Haberfield and Rozelle

    Industry partners

      Design and construct contract: Lendlease Samsung Bouygues Joint Venture 
      Operations and maintenance contract: Commitment deed in place with Fulton Hogan and Egis Joint Venture
      Tolling contracts: TBA

    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

    WestConnex 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.
     

    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. 

    The WestConnex Community Connections Program includes the WestConnex Community Grant Scheme, which provides grants of up to $10,000 to local groups such as such as schools, sporting associations and social enterprises located in and around the WestConnex project area.

    Grant applications are assessed against guidelines, which consider areas including community legacy, connecting communities, building capacity and helping people.