M4-M5 Link Tunnels
Changes in the way we work
The health and safety of the community, our stakeholders and our team members is our number one priority.
In consideration of the rapidly changing situation regarding the COVID-19 pandemic and in line with the social distancing measures advised by the NSW Government, WestConnex M4-M5 Link Tunnel project are temporarily adjusting some of our in-person community engagement activities.
It is in the best interest of everyone that we modify the way in which we engage with the community during this uncertain and challenging time. We are however still committed to sharing factual updates, milestone and important information about the project in other ways that do not involve face-to-face contact. This includes sending information via email, speaking over the phone, updating you through letterbox drops, posting information on the WestConnex website and via our social media channels.
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.
- 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.
- 18 August - 16 October 2017 - The M4-M5 Link Environmental Impact Statement was on public exhibition for a period of 60 days.
- 18 August 2017 - M4-M5 Link feedback report released.
- May - June 2017 - Community information sessions hosted across the M4-M5 Link project area, to support the release of the M4-M5 Link Concept Design.
- 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 Addendum, which 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.
Current status: Approved
Open to traffic :
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)
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FAQs See all
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.
By supporting western Sydney communities through key community partnerships and programs WestConnex can help to provide long term benefits to those who need it most.
Our 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 the Westconnex Community Connections Program, which also includes the WestConnex Community Grant Scheme.
Community or social cohesion programs will be implemented to enhance the cohesion in precincts directly affected by WestConnex. Initiatives may include enhancement of open space, accessibility of public areas, active community involvement and engagement, support of community initiatives and provision of grants to eligible groups in the local community.
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