NZ Transport Agency Waka Kotahi (NZTA) is undertaking essential resilience works on SH1 through Mangamuka Gorge from Monday 15 September for up to 4 weeks (weather dependent). These works are to repair a new slip that occurred during Cyclone Tam in April this year.

The scope of work includes:

• Building a new rock wall to help stabilise the hillside and reduce slips
• Extending the roadside drain and lining it with rocks to help manage heavy rain
• Installing a concrete channel next to the northbound lane to help guide water safely away from the
road.

Road users can expect a one-lane closure with stop/go operations in place Monday to Friday, 7:00 AM – 5:00 PM. Please allow extra time for your journey.

Outside of working hours Monday to Friday, 7:00 AM – 5:00 PM, both lanes will be open to traffic.

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