NZ InfraWatch
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TRANSPORT
SH1 Rolleston Access Improvements
NZ Transport Agency Waka Kotahi · Canterbury
Access improvements on SH1 at Rolleston, in the country's fastest-growing district: about 7km of works centred on a flyover linking the township to its industrial area, with signal removals, a new roundabout at Dunns Crossing Rd and Weedons Rd interchange improvements. Announced at $125m, now estimated at $180-200m, in two stages to late 2028.
88
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
- Canterbury
- Sector
- Transport
- Status
- Under Construction
- Estimated value
- $180m
- Indicative completion
- 2028
- Funding status
- Fully Funded
- Lead organisation
- NZ Transport Agency Waka Kotahi
- Election risk
- Low
Election risk assessment
Funded under the NZ Upgrade Programme and already under construction, low political risk and broadly continued across governments.
Government priority alignment
MEDIUM: Regional access and safety upgrade delivered under the NZ Upgrade Programme.
Recent changes
- 2026-W37Major New project added: SH1 Rolleston Access Improvements (Under Construction, $180m).
Chronology
- 2020Included in the NZ Upgrade Programme
- 2024Design finalised; consenting and early works progressed
- 2025Main construction underway; SH1 traffic impacts begin
- 2028expectedTarget completion (revised from 2027 as scope grew to two delivery stages)