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Project introduction

SH1 and SH18 upgrades will provide more reliable journey times for the movement of people and goods around the North Shore and Auckland while an improved public transport network with more shared path connections will help locals have greater choice for how they travel around their community.

  • Estimated project dates

    Apr 2018–Sep 2023
  • Estimated project cost

    $700 million

Project updates

Project Update January 2023
Project Update December 2022
Project Update November 2022
Project Update October 2022
Project Update September 2022

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Well-planned transport investment delivers social, economic and environmental benefits. It helps communities thrive and safely connects people with jobs, schools, essential services and recreation.

We’re completing the Western Ring Route to improve resilience for the movement of people and goods across the region, providing better access to public transport by extending the Northern Busway and supporting walking and cycling with 7km of shared paths to make it easy for people to get around.






  • Provide a reliable journey time for people travelling through the area with direct SH1 and SH18 motorway to motorway connections.
  • Improve the resilience of the Auckland state highway network for people and goods travelling through the area and to the airport and wider regions.
  • Support people being able to leave their cars at home and travel around their local community on foot or by bike.
  • Separating vehicles on local journeys around their community from those travelling on the state highway to create a safer environment.
  • Make travel via public transport more appealing and reliable with the extension of the Northern Busway to Albany.
  • Create a welcoming and appealing community to live and travel through with an urban design created in partnership with mana whenua.

Northern Corridor concept design animation

Public consultation

Engaging closely with iwi, key stakeholders, affected property owners and the community during the life cycle of a project ensures that the infrastructure we’re building reflects the needs of the community as well as those travelling through the area.

Read our Public Consultation page to find out more about how we’ve engaged with people during the option, design and consenting process.

Public consultation

Contact us

Emma Cushnie
Community Engagement Manager
Phone: 0800 NCI PROJECT