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, 7.00pm – 5.00pm. 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.

For real-time travel information, visit www.journeys.nzta.govt.nz or call 0800 4 HIGHWAYS (0800 44 44 49).

Thank you for your patience and understanding as we carry out these important works.