Gateway WA Perth Airport and Freight Access

CityPerth, WA
ClientMain Roads WA
Contract typeAlliance
Construction periodNovember 2012-2016

This project is the largest road initiative undertaken by Main Roads WA.

Jointly funded by the State and Federal governments, the Gateway WA Perth Airport and Freight Access Project is preparing the city for future growth. It will provide much-needed improvements around Perth Airport, as well as the nearby Kewdale and Forrestfield industrial estates.

Gateway WA incorporates road and bridge improvements, local road modifications, facilities and connections for pedestrians and cyclists, noise walls, landscaping, innovative urban design and the use of intelligent transport system technology.

This iconic project requires a strong visual urban design. It is considered a gateway project to Perth that will leave an impression on residents and visitors to Western Australia.


  • Widening 7 kilometers of Tonkin Highway to six lanes
  • Upgrading 3 kilometers of Leach Highway to expressway standard
  • Constructing five new grade separated interchanges

A community focus
Stakeholder consultation was a key component of the project’s planning study that began in mid-2010. Opinions and ideas shared through consultation influenced key project decisions relating to road design, access arrangements, environmental management, amenity for pedestrians and cyclists, and urban design aesthetics.

As the project advanced, the team continued to work with Main Roads WA, local councils and Perth Airport to ensure the views and knowledge of local residents and businesses are taken into account.

The project has actively pursued opportunities that lead to sustainable outcomes. Where possible, the team was taking steps to conserve vegetation and established trees, protect the habitats of native flora and fauna, and salvage plant material for reuse.

The project has been approved by the Federal Department of Sustainability, Environment, Water, Population and Communities, and operates under a series of Construction and Operation Environmental Management Plans, which outline the management of key environment risks.

Sustainability awards
The project has been honored at the 2016 Civil Contractors Federation (WA) Earth Awards: It has won the Category 6 Earth Award for projects valued at more than AUD 75 million. In addition, Gateway WA achieved the second highest Infrastructure Sustainability rating for a completed infrastructure construction project in Australia.

A number of sustainable initiatives delivered by the Alliance team led to the achievement of the “Excellent” As Built rating awarded by the Infrastructure Sustainability Council of Australia (ISCA) and the subsequent Earth Award, including:

  • Outstanding management of substantial volumes of waste to facilitate reuse and prevent unnecessary landfill.
  • Relocating animals found in the project area, including 120 threatened bandicoots.
  • Growing and planting more than 2,300 rare plants.
  • Working with members of the local Aboriginal community to enhance the recognition of heritage through public art.

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CPB Contractors Pty Limited
Corporate Office Level 18 177 Pacific Highway
NSW 2060 North Sydney • Australien
Tel: +61 2 8668 6000
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