NSW/Transurban/Westlink M7 – NorthConnex Tunnel Motorway – New South Wales - Project Profile

NSW/Transurban/Westlink M7 – NorthConnex Tunnel Motorway – New South Wales - Project Profile


"NSW/Transurban/Westlink M7 – NorthConnex Tunnel Motorway – New South Wales - Project Profile" contains information on the scope of the project including project overview and location. The profile also details project ownership and funding, gives a full project description, as well as information on contracts, tendering and key project contacts.

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The NSW Government (NSW) through Roads & Maritime (RMS), Transurban and Westlink M7 are undertaking the construction of NorthConnex tunnel Motorway in New South Wales, Australia.

The project involves the construction of a twin motorway tunnel of 9km length with two lanes and a breakdown lane in each direction between the M1 Pacific Motorway and the Hills M2 Motorway, an increased height clearance of 5.3m and half of the tunnel will be 60m deep, and excavation of additional around 3km tunnels for on and off ramps. Each tunnel will be built with the long term capacity for three lanes in each direction.

The project includes the construction of southern interchange connecting Pennant Hills Road and the Hills M2 Motorway, and northern interchange connecting with the M1 Pacific Motorway, the Pacific Highway and Pennant Hills Road.

The project will feature the construction of a motorway operation complex, control centre, ancillary buildings, water treatment plant each one near the southern interchange and northern interchange, electronic tolling facilities, ventilation facilities and tunnel support facilities, and the installation of street lights, sign boards and safety systems.

The tunnel is being constructed using drilling & blasting method.

In March 2012, NSW Government received an unsolicited proposal from Transurban and the Westlink M7 shareholders to design, build, operate, maintain and finance (DBOMF) the project.

Australian Government announced it would contribute up to US$315 million to help deliver this project in partnership with the NSW Government in the 2013-14 Budget.

Transurban has appointed Aecom as Technical Adviser. Aecom is responsible for providing technical consultancy to leverage innovative engineering solutions for cost savings, environmental approvals, preliminary geotechnical investigations, and reference design and performance specifications for tenders.

In June 2013, Transurban has issued an expression of interest (EOI) for design-build (DB) contractor with a submission deadline in July 2013. Bidders were requested to deliver an innovative, cost effective and environmentally responsive design to be constructed within a budget.

On August 8, 2013, NSW Minister for Roads and Ports announced three consortia had been invited to tender for the project. The consortia are Thiess John Holland Joint Venture, Lend Lease Bouygues Joint Venture and GlobalLink Joint Venture consisting of Ghella Pty Ltd and Acciona Infrastructure Australia Pty Ltd. The tendering period closed at the end of November 2013.

On March 16, 2014, Australian and NSW Governments announced the preferred scheme and Lend Lease Bouygues as the preferred tenderer for NorthConnex.

On January 15, 2015, NSW Minister for Planning has granted the approvals for the construction and operation of NorthConnex. The conditions include new and extensive safeguards on the operation of the tunnel and air quality.

On January 31, 2015, the project achieved financial close.

In January 2015, Lend Lease Bouygues joint venture (LLBJV) was awarded the design-build contractor.

The NSW Department of Planning and Environment placed the NorthConnex Environmental Impact Statement (EIS) on display for community comment from July 15, 2014, until September 12, 2014.

Allens has been appointed as legal adviser and Mikcon Civil South Coast Pty Ltd as the plant supplier.

On February 2, 2015, Federal Assistant Infrastructure and NSW Roads signed a final contract to close the deal financial deal for the project.

On February 5, 2015, groundbreaking ceremony was held. On February 15, 2015, Hyder Consulting and APP Corporation was appointed as the lead consultant.

In September 2015, UGL Ltd was awarded a sub-contract and signed a US$342 million four-year alliance agreement which covers the design, procurement, construction and commissioning of the mechanical, electrical, control, fire and communication systems services required for the motorway development.

In the first quarter of 2016, US$73 million was allocated in the federal budget to the project by the Government of Australia, which is part of a US$315 million fund allocated in 2013.

In May 2016, blasting and rock breaking to make shafts for the tunnels are being done.

In May 2017, Federal Government announced US$308.9 million funding in equity for the project over next 10 years. Out of which US$37 million to be provided for planning and preparatory work in 2017-18.

The government plans to establish a government-owned company with strong private sector expertise in FY2017/18 to manage the development process.

Construction activities are underway and scheduled to complete in the fourth quarter of 2019.


The project involves the construction of a nine-km dual two-lane road tunnel running beneath Pennant Hills Road from Wahroonga to the M2 Motorway at West Pennant Hills in New South Wales, Australia.

The US$3,055 million project includes the following:

1. Construction of three lanes and a breakdown lane

2. Construction of northern interchange connecting with the M1 Pacific Motorway, the Pacific Highway and Pennant Hills Road

3. Construction of southern interchange connecting with the Hills M2 Motorway and Pennant Hills Road

4. Construction of a new 3.5km westbound lane on the Hills M2 Motorway from Pennant Hills Road to Windsor Road

5. Construction of a control center

6. Construction of ancillary buildings

7. Construction of water treatment plant near the southern interchange

8. Construction of water treatment plant near the northern interchange

9. Construction of electronic tolling facilities

10. Construction of ventilation facilities

11. Construction of tunnel support facilities

12. Excavation of additional 3km tunnels for on and off ramps

13. Installation of safety systems

14. Installation of street lights and sign boardsReasons To Buy

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