twin tunnels in Sydney
Providing vital support for the long-term growth of Sydney
INDUSTRY, INNOVATION AND INFRASTRUCTURE
Build resilient infrastructure, promote sustainable industrialization and foster innovation
Economic growth, social advancement and action against the climate emergency depend largely on investment in infrastructure, sustainable industrial development and technological progress. Today, about 1 billion people live more than 2 km from a roadway, 940 million live without electricity, and 663 million lack improved drinking water sources.
ACCIONA participates in the entire infrastructure construction value chain, from the identification of opportunity, design and execution, to the operation and maintenance of the constructed works, using the most advanced and innovative techniques.
Performance quality and safety are two of the criteria that maximize the company's value proposal in the development of large infrastructure projects and that differentiate it from other competitors in the construction field.
The project will create a western bypass of the CBD along with numerous benefits; eased congestion, connected communities and more than 11,500 jobs both directly and indirectly. The project will provide vital support required for the expected long-term growth of Sydney’s economy and population.
The M4 - M5 Link is being delivered in two parts. Stage 3A is the tunnels connecting the M4 and M8 and Stage 3B is the Rozelle Interchange.
- By 2031, 40 minutes will be cut from an average peak journey between Parramatta and the Sydney Airport.
- More than 100,000 trips a day are expected on the new extensions of the M4 and M8, removing vehicles which would otherwise clog suburban and city streets.
- Around 4,000 vehicles are forecast to be taken off King Street, with 3,000 fewer vehicles on Sydenham Road each weekday.
- Daily traffic volumes on Parramatta Road between Haberfield and the CBD will be significantly improved with reductions of up to 50% along certain sections.
- Around 2,000 heavy vehicles are forecast to be removed from Parramatta Road east of the M4 Parramatta Road ramps each weekday.
- Reduced Carbon emission for the project by 28%.
- Reduced the life cycle impacts of materials by 17%.
- Reduced water consumption by 60% in construction.
- Optimising non-potable water reuse (currently at 62%).
- 100% reuse of all usable spoil.
- 98% recycling of construction and demolition waste.
- 20% green power.
- 31% supplementary cement material in concrete mixes.
- Outstanding International Shotcrete Project of the Year – American Shotcrete Association (ASA).
- Excellence in Economic Outcomes – Infrastructure Sustainability Council.
- Location: Sydney, New South Wales.
- Contract type: Design and construction.
- Infrastructure: 7.5 km twin tunnels.
- Year of project completion: 2023
- Project value: –$3.9 billion.
- The design and construct contract for the M4-M5 Link Tunnels was awarded to the joint venture of Acciona Construction Australia, Samsung C&T and Bouygues Construction Australia (ASBJV) in June 2018.
- 5km twin tunnels, three lanes in each direction.
- Largest road transport infrastructure project in Australia.
- Construction started in 2018 and the project will be open to traffic in 2023.
- Contributes to the $20bn of economic benefits to NSW.
- The travel time between the existing M4 and M8 using the new tunnels is expected to be eight minutes.
- Creates a bypass of 52 sets of traffic lights.
- This project is the most critical component of the 33km WestConnex Motorway, with Rozelle Interchange being the final stage of the WestConnex network.