Cook Strait ferry replacement programme

The Government is replacing Interislander’s Kaitaki and Kaiārahi ferries with two new, larger rail-enabled ferries in 2029.

Ferries and rail keep New Zealand connected

The Cook Strait ferries are a critical transport link connecting New Zealand’s North and South Islands, moving people, trucks, freight, rail wagons and essential goods that keep businesses and communities supplied.

As an extension of State Highway 1, the ferries play a vital role in supporting national supply chains, economic activity and transport resilience.

Replacing the ageing fleet and upgrading port infrastructure is a significant investment, but it is one that helps safeguard reliability, increase capacity, reduce future maintenance risks and ensure the network can meet New Zealand’s long-term freight and passenger needs.

While construction and infrastructure upgrades will cause some short-term disruption at Wellington and Picton, these works are designed to create a safer, more resilient and future-ready Cook Strait crossing that will support the movement of goods and people for decades to come.

Planned upgrades and replacements

The project includes upgrades at the ferry terminals in Picton and Wellington, making the most of existing port, rail and road infrastructure wherever possible.

What to expect around during construction

During construction, travellers and locals may notice temporary changes around the Wellington and Picton ferry terminals, including some changes to vehicle and passenger access. We'll provide clear signage and updates, and our staff will be available to help make your journey as smooth as possible.

Working together on the future of Cook Strait travel 

The new ferries and terminal upgrades are being delivered by a number of organisations. KiwiRail is helping ensure the new service works well for passengers, freight customers and rail connections, while other partners are responsible for ferry procurement and port infrastructure. Here's what each organisation is responsible for:

• Ferry Holdings Ltd: procuring the new ferries, funding infrastructure, reaching commercial agreements with parties, and general oversight of the project
• Port Marlborough NZ: major infrastructure work in Picton
• CentrePort: major infrastructure work in Kaiwharawhara, Wellington
• NZTA: State Highway improvements in Picton to support the new ferries
• KiwiRail: constructing the new Dublin Street road bridge over the rail line in Picton. Some rail and vehicle yard changes at the two terminals.