Hibiscus Coast drivers heading north next week face full SH1 closures over the Brynderwyn Hills for resurfacing across two 4-day super weekends, keeping the route in top shape before summer.

The highway shuts from 12:01am Thursday, November 13 to 11:59pm Sunday, November 16, then again from 12:01am Thursday, November 20 to 11:59pm Sunday, November 23.

It reopens in both directions for three days between closures, from Monday, November 17 to Wednesday, November 19.

Light vehicles can detour via Mangawhai using Cove Road between Kaiwaka and Waipū.

Trucks and trucks with trailers up to 50MAX tonnes can use Paparoa Oakleigh Road between Brynderwyn and Oakleigh.

The preferred heavy-vehicle route is via SH12 and SH14 through Dargaville, which HPMVs must use.

The car detour adds about 20 minutes.

Night works to prepare the road run 8:00pm Wednesday, November 5 to 5:00am Thursday, November 6, with a contingency of 8:00pm Sunday, November 9 to 5:00am Monday, November 10 if needed.

The closure area runs from the SH1/SH12 intersection on the south side to the bottom of the hill on the north side near Waipū Gorge Road, with clear detour signage in place.

“Strong, reliable roading links with Auckland and the rest of the country are essential for our region’s growth,” says Paul Linton of Northland Inc.

NZTA will run crews 24/4 during closures to complete full-width asphalt, reinstate markings and passing lanes, and return the route to 80km/h.

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