M4-M5 Link Tunnels
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.
- 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.
- 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.
Current status: Approved
Open to traffic (pending planning approval): Early
* 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
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
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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
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.
Tolls will be charged once new or significantly upgraded sections of road are opened to motorists. The new M4 (Parramatta to Homebush) opened in July 2017, with a one-month toll-free period. Distance-based tolls apply on the new M4.
Tolls will be charged on the M5 East and the New M5 when the New M5 is open to traffic in early 2020.
We will advise motorists before any tolls are introduced on other sections of WestConnex.
WestConnex has a distance-based tolling system, like the existing M7 Motorway. Motorists pay only for the sections of the motorway they use and a maximum cap applies.
Tolls will be introduced as each section of WestConnex opens to traffic. The new M4 opened to traffic in July 2017, and distance-based tolls commenced in August 2017.
Distance based tolling will begin on the M5 East and the New M5 when the New M5 opens to traffic in early 2020.
Cars will pay one third of the heavy truck toll, reflecting the greater wear and tear trucks have on the motorway (an approach that is consistent with other Sydney motorways).
For the current toll estimates, see Using WestConnex.
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