NZ InfraWatch
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TRANSPORT
Mill Road Corridor — Auckland
Waka Kotahi / Auckland Transport · Auckland
Multi-lane arterial from Manukau to Drury serving rapidly growing south Auckland. Part of the Roads of National Significance (RoNS) programme reinstated by National in 2023. Business case complete, funding negotiations ongoing.
C
56/100 · Uncertain
Completion Probability — likelihood this proceeds on roughly its stated timeline.
Funding statusweight 30%
Delivery stageweight 25%
Election / policy riskweight 20%
Govt priority alignmentweight 12%
Project scaleweight 8%
Delivery agencyweight 5%
Key facts
- Region
- Auckland
- Sector
- Transport
- Status
- Planning
- Estimated value
- $1.2b
- Indicative completion
- 2031
- Funding status
- Part Funded
- Lead organisation
- Waka Kotahi / Auckland Transport
- Election risk
- High
Election risk assessment
Roads of National Significance priority under current government. Labour opposed previous incarnations. Would be reviewed under government change.
Government priority alignment
HIGH — Roads of National Significance — the GPS 2024 flagship programme.
Chronology
- 2009Mill Road identified in Auckland's southern growth strategy as critical arterial
- 2016Route designation confirmed through Manukau and Papakura
- 2020NZ Upgrade Programme allocates $375M — project advances
- 2021Labour removes Mill Road from RoNS list; scope significantly reduced
- 2023National reinstates Mill Road as Roads of National Significance priority
- 2025Business case updated; funding negotiations with Treasury underway
- 2031Target completion for primary sections