Waka Kotahi NZ Transport Agency has announced the opening of the Transmission Gully motorway to traffic in New Zealand.

The 27 km long new highway is expected to provide a resilient and reliable route in and out of Wellington, improving safety for everyone and offering better access for communities in eastern Porirua. The road has improved the access to the Hutt Valley through a connection with SH58 at Pāuatahanui, reducing traffic volumes on the old coastal route (SH59), and cutting peak travel times in and out of the capital by 7 to 15 minutes in each direction.

Transmission Gully motorway also features four new interchanges connecting to communities along the route. The opening of the road marks the beginning of operation and maintenance of the road for the next 25 years. The project owner, Wellington Gateway Partnership, has subcontracted CPB HEB to undertake the motorway’s design and construction, and Ventia to operate and maintain the motorway. Once the concession period is over, the motorway will be transferred back to the authority.