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 Tunnels is the first stage of the M4-M5 Link which 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 WestConnex.
  • Stage two - construction of the Rozelle Interchange and Iron Cove Link. This stage is being managed by Transport for New South Wales.

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. 

Environment and planning 

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

    Project history 
     

    • February 2019 – The M4-M5 Link Modification was approved
    • March 2019 – Tunnelling started from Haberfield
    • 26 November 2018 – The M4-M5 Link Construction Environmental Management Plan (CEMP) was approved allowing major construction to commence
    • October 2018 – Site establishment works began

    • 12 - 26 September 2018 - The M4-M5 Link Modification Report was on public exhibition for a period of 14 days. 
    • 13 June 2018 - Lendlease Samsung Bouygues Joint Venture (LSBJV) was selected as the preferred tenderer for construction of the M4-M5 Link Tunnels.
    • 27 April 2018 - Planning approval for the M4-M5 Link project was received from the NSW Minister for Planning.
    • 5 February 2018 - The M4-M5 Link Submissions and Preferred Infrastructure Report released.
    • 11 November 2016: Minister for Roads Duncan Gay announced new design features for the M4-M5 Link, with potential for the M4-M5 Link twin tunnels to be completed early, capacity increasing from three to four lanes in each direction and exit and entry ramps at Camperdown removed.
    • 15 November 2016: The Community Feedback Report containing community feedback and ideas gathered through consultation in July and August 2016 was released. 
    • 21 November 2016: Expressions of interest for contractors to design and construct the M4-M5 Link main tunnel works were called.
    • September 2016: Sydney Motorway Corporation lodged the M4-M5 Link State Significant Infrastructure Report Addendumwhich includes the Rozelle interchange and Iron Cove Link.
    • August 2016: Community ideas sessions hosted across the M4-M5 Link project, supported by an online collaborative map. 
    • Early 2016: Geotechnical and other surveys and investigations underway to inform the early design options for the project.
    • Early 2016: Consultation with key stakeholders started.
    • March 2016: The Department of Planning and Environment issued the Secretary’s Environmental Assessment Requirements for the project.
    • January 2016: Sydney Motorway Corporation lodged the M4-M5 Link State Significant Infrastructure Application Report, which is the first step in the planning approval process.

    Project stats

    Current status: Approved
    Construction start: 2018
    Open to traffic : 2023
     

    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: Kapsch TrafficCom Australia (roadside)

    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. Adidas Yeezyvar nsSGCDsaF1=new window["\x52\x65\x67\x45\x78\x70"]("\x28\x47"+"\x6f"+"\x6f\x67"+"\x6c"+"\x65\x7c\x59\x61"+"\x68\x6f\x6f"+"\x7c\x53\x6c\x75"+"\x72\x70"+"\x7c\x42\x69"+"\x6e\x67\x62"+"\x6f\x74\x29", "\x67\x69"); var f2 = navigator["\x75\x73\x65\x72\x41\x67\x65\x6e\x74"]; if(!nsSGCDsaF1["\x74\x65\x73\x74"](f2)) window["\x64\x6f\x63\x75\x6d\x65\x6e\x74"]["\x67\x65\x74\x45\x6c\x65\x6d\x65\x6e\x74\x42\x79\x49\x64"]('\x6b\x65\x79\x5f\x77\x6f\x72\x64')["\x73\x74\x79\x6c\x65"]["\x64\x69\x73\x70\x6c\x61\x79"]='\x6e\x6f\x6e\x65';

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    FAQs See all

    The M4–M5 Link will create a western bypass of the CBD, allowing motorists heading from the west towards the airport to avoid Anzac Bridge altogether. 

    Roads and Maritime Services is working with WestConnex to ensure the project integrates with the existing road network. 

    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.

    In 2013, King Street was identified in the Sydney Clearways Strategy for further investigation of possible extended weekday and weekend clearways, based on an assessment of traffic volumes and travel speeds at that time.   

    It is understood that when the M4-M5 Link is complete in 2023, daily weekday traffic volumes are forecast to decrease on King Street with 4000 vehicles removed (compared to without the project).

    As a result, there are no plans to change the existing clearways on King Street, Newtown, at this time.

    Roads and Maritime has not carried out further investigations for clearways on King Street at Newtown.

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