Construction work to extend the Waikato Expressway as far south as Piarere is expected to begin towards the end of this year, or early in 2027.
Budget 2026 is investing $1.773 billion for the Cambridge to Piarere Road of National Significance, extending the Waikato Expressway which is one of New Zealand’s most strategically important transport corridors.
The extension of the Waikato Expressway will make travel safer, faster and more reliable, Transport Minister Chris Bishop says.
“State Highway 1 between Cambridge and Piarere is a critical freight and economic link connecting Auckland, Waikato and the Bay of Plenty with the central and lower North Islan...








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