Several kilometres of Transmission Gully will undergo resurfacing and rebuilding this summer, sparking frustration among motorists and commuters across the lower North Island.
The early maintenance work was reported by Newstalk ZB and has raised questions about the long-term durability of the $1.25 billion motorway, which opened in 2022 after years of delays and budget blowouts.
“Infrastructure New Zealand acknowledges the importance of keeping this key transport route safe and reliable,” said Chief Executive Nick Leggett. “While it is sooner than many would have expected for maintenance of this scale to occur, it is vital that the work is undertaken to ensure the motorway continues to perform well for the region.”
Leggett said the public deserves clear communication about the reasons for the repairs, the impact on road users, and how the costs will be managed. “Transparency around the causes of this maintenance will help us to strengthen delivery practices and ensure upcoming projects are designed and built for maximum longevity,” he said.
The resurfacing effort comes at a time when public trust in major infrastructure projects is under pressure. Leggett noted that New Zealanders expect durable infrastructure and that learning from Transmission Gully is essential for improving future Roads of National Significance.
Infrastructure New Zealand is preparing to release a report on the economic benefits the motorway has already delivered to the Wellington region. “That analysis will highlight why these projects matter so much, and why they need to be delivered to the highest possible standard,” said Leggett.
