NZ InfraWatch
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TRANSPORT
Ara Tūhono — Warkworth to Te Hana
Waka Kotahi NZ Transport Agency · Auckland
Stage 2 of Ara Tūhono (after the completed Pūhoi–Warkworth motorway): a new ~26km four-lane corridor from north of Warkworth, west of SH1, rejoining SH1 north of Te Hana, including an alternative to the Brynderwyn Hills. Estimated ~NZ$3.5–4b; in procurement, with detailed design and construction expected from late 2026.
D
Breakdown▾
49% · At risk
Completion Probability — likelihood this proceeds on roughly its stated timeline.
Each axis is a scoring factor (0–100%)
Key facts
- Region
- Auckland
- Sector
- Transport
- Status
- Planning
- Estimated value
- $3.8b
- Indicative completion
- 2034
- Funding status
- No Source
- Lead organisation
- Waka Kotahi NZ Transport Agency
- Election risk
- High
Election risk assessment
National RoNS in procurement; large and costly but government-backed.
Government priority alignment
HIGH — RoNS extension toward Northland — GPS economic-growth priority (long-term).
Chronology
- 2017Pūhoi–Wellsford named a Road of National Significance
- 2023Stage 1 (Pūhoi–Warkworth) opens
- 2026Stage 2 (Warkworth–Te Hana) in procurement; design/construction from late 2026