M4-M5 Link

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M4-M5 Link

(Haberfield to St Peters)

Tunnels connecting to the New M4 at Haberfield and New M5 at St Peters via Rozelle.

The M4-M5 Link project includes an interchange at Rozelle with provision for a future connection to the Western Harbour Tunnel and BeachesLink. It also includes an underground tunnel from the Rozelle Interchange to Victoria Road near Iron Cove Bridge, known as the 'Iron Cove Link'.

The interchange in Rozelle will be mostly underground and located at the site of the old Rozelle Rail Yards. By building the interchange mostly underground, the project will deliver new active transport options in Rozelle and up to 10 hectares of new green space. The M4-M5 Link will also provide an additional 2.5 hectares of green space in St Peters.

Current status

Planning on this project is currently underway.

This is being supported by a community and stakeholder engagement program

M4-M5 Link Concept Design now available 

The M4-M5 Link Concept Design has been released for community feedback.

The design shown has been informed by the results of technical investigations and community feedback to date.

We are seeking feedback on the M4-M5 Link Concept Design from stakeholders and the community. All feedback will be considered and, wherever we can, we will use your ideas to help create better outcomes for the community. 

Environment and planning 

In January 2016, we lodged a State Significant Infrastructure Application Report for the M4-M5 Link. This was the first step in the planning approval process. In March 2016, the Department of Planning and Environment issued the Secretary’s Environmental Assessment Requirements (SEARs) for the project. The SEARs define comprehensive environmental assessment requirements to be addressed by the project’s Environmental Impact Statement (EIS). This is being prepared and will be exhibited in mid-2017.

Project history 

  • 12 May 2017: M4-M5 Link Concept Design released for community feedback.
  • March 2017: Sydney Motorway Corporation lodged the M4-M5 Link State Significant Infrastructure Report Addendum 2.  
  • 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. 
  • July 2016: Premier Mike Baird announced key features of the Rozelle Interchange, including up to 10 hectares of new green space and an underground road link between Rozelle and the Iron Cove Bridge.
  • 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.
  • November 2015: WestConnex Updated Strategic Business Case published, including a proposal for the M4-M5 Link. 
  • September 2013: WestConnex Strategic Business Case – Executive Summary published, including an early proposal for the M4-M5 Link. 

Project stats

Project value: $7.247 billion^
Current status: Planning
Construction start (pending planning approval): 2018
Open to traffic (pending planning approval): 2023^
Current traffic projections*: 105,000^^

* 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: Tender process yet to begin
    Operations and maintenance contract: Commitment deed in place with Fulton Hogan and Egis Joint Venture
    Tolling contracts: Tender process yet to begin

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

Sydney Motorway Corporation (SMC) is committed to supporting western Sydney communities through key community partnerships and programs that provide long term benefits to those who need it most.

SMC’s community partnerships with the GWS Giants and Wests Tigers will ensure positive and lasting outcomes for thousands of people based in western Sydney through the delivery of targeted community programs.  

These programs deliver positive outcomes in health, education and skills, and harmony outcomes.

The community partnerships are one part of SMC’s Community Connections Program, which also includes the SMC Community Grant Scheme.

To create a path for the tunnel, Roads and Maritime Services will need to compulsorily acquire ‘subsurface’ land. This includes land passing directly under properties. 
In accordance with the provisions of the Land Acquisition (Just Terms Compensation) Act 1991, compensation is generally not payable for subsurface acquisition unless particular circumstances as defined in the Act relating to damage to the support of property is caused.

 

All Sydney road tunnels have management plans that involve monitoring tunnel air quality 24-hours a day and they must comply with independent pre-determined guidelines for in-tunnel air quality. 

The WestConnex air quality management plan will follow stringent guidelines and take account of the final design of the route, the length of each section of tunnel and the location of ventilation outlets. 

For more information, visit Air quality.