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TRANSPORT
SH2 Melling Interchange
NZ Transport Agency Waka Kotahi · Wellington
A grade-separated SH2 Melling interchange and Hutt River bridge, removing the SH2 traffic lights, with the Melling train station relocated south and a new park-and-ride. The $743m Melling improvements are part of the $1.5b RiverLink programme. Construction began in September 2025, with completion in 2031.
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Breakdown▾
Strongest delivery signals Data: High
Delivery Confidence Score, 0 to 100, higher is better: a ranking of how strong this project's delivery signals are, not a probability. It blends eight factors, including the election risk and policy alignment shown below.
Each axis is a scoring factor (0 to 100)
Data current as at 16 Sept 2026, when the pipeline was last checked against its source.
Key facts
- Region
- Wellington
- Sector
- Transport
- Status
- Under Construction
- Estimated value
- $743m
- Indicative completion
- 2031
- Funding status
- Fully Funded
- Lead organisation
- NZ Transport Agency Waka Kotahi
- Election risk
- Low
Election risk assessment
Funded and contracted, with construction under way as part of the wider RiverLink programme, low political risk.
Government priority alignment
HIGH: Resilience, safety and multi-modal access integrated with flood protection.
Recent changes
- 2026-W37Major New project added: SH2 Melling Interchange (Under Construction, $743m).
Chronology
- 2020Funding confirmed alongside the RiverLink flood-protection programme
- 2025Alliance delivery contract signed; site establishment begins
- 2031expectedTargeted completion (aligned with the interchange/bridge completion date; old bridge demolition follows in 2032)