Project introduction

We want to improve the resilience of six high-priority South Island corridors that are vulnerable to natural disasters; this will make our transport network stronger and better prepared in case of major disruption.

  • Estimated project dates

    Nov 2023–Apr 2025
  • Project type

    Road improvements, Study and investigation
  • Project status

    Investigation

About the project

We want to make sure we have a resilient transport network, so in the event of a major disruption or disaster we can get the roads open and operational again as quickly as possible.

Six high-priority corridors have been identified in the South Island because of the likely impact a natural disaster would have on them. We are proposing to improve these corridors and increase their resilience:

  • SH6 Hope Saddle to SH65 Higgins Bluff
  • SH6 Frankton to Kingston
  • SH94 Milford Road Sound to Te Anau Downs
  • SH60 Takaka Hill
  • SH6 Cromwell to Frankton
  • SH6 Haast to Hāwea

The South Island resilience project is currently in the investigation phase. This means we’re looking at each project to determine the need for it and find the best solutions. It’s more cost effective to do preventative work than extensive repairs following a significant event.

By being proactive now, we can plan initiatives that will reduce the amount of emergency work needed on our roads and this will keep communities better connected if a major event happens.


  • Investigation phase

    Our investigations will determine what works are needed to create a more resilient state highway network, how much it would cost, and when and how the works would be delivered. We can then put forward a case for investment to carry out the required works. If approved, we can then develop a plan to complete the work.  

    A resilience panel, made up of staff from NZTA and consultants, is gathering information about the resilience issues on these corridors, talking to interested stakeholders and looking into possible solutions.

    After the investigations are completed for the six high priority areas our recommended approaches will be submitted for endorsement, and we will seek funding from the National Land Transport Programme for completing design and construction.

    Our transport system needs to be resilient, robust, reliable, and adaptable and these projects will help to achieve this. 

    We are also investing in the resilience of the state highway network across the country through the Transport Resilience Fund, a $419 million Crown investment package to build climate resilience across the national roading network.

    Transport Resilience Fund

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  • Key features

    A resilience panel is working on investigations for each of these high-priority corridors that will include:

    • performing investigations on the corridors
    • engaging stakeholders
    • recommending solutions to improve resilience.

    The corridor investigations have been split into two stages; stage one projects are being worked on first. All projects are now underway.

    We are working on six priority corridors

    • Hope Saddle to SH65 Higgins Bluff - investigation complete, now into detailed design
    • SH6 Frankton to Kingston – investigation to be completed November 2024
    • SH94 Milford Road Sound to Te Anau Downs - investigation to be completed March 2025
    • SH60 Takaka Hill
    • SH6 Haast to Hawea
    • SH6 Cromwell to Frankton
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  • Project timeline

    Draft timeframes are outlined below. These are subject to funding constraints and dates may change as we work through the programme:

    Stage 1

    • Investigation: November 2023 – March 2024
    • Approval of case for investment:  October 2024 – March 2024
    • Planning and design: January 2025 (subject to funding)

    Stage 2

    • Investigation: June 2024 – early 2025
    • Approval of case for investment: Mid 2025
    • Planning and design: Mid 2025 (subject to funding)
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