State Highway 1 is set to close at the Brynderwyn Hills over two four-day periods next month.
New Zealand Transport Agency Waka Kotahi said the closure would ensure the route is in "peak condition" ahead of the busy summer season.
"It’s the final stage of the SH1 Brynderwyn Hills recovery project, and involves applying a full-width asphalt surface, reinstating lane markings and passing lanes, and returning the route to 80km/h, making journeys to and from Northland smoother."
The route would be closed from November 13 to November 16, and again from November 20 to November 23.
It would reopen for three days in-between the closures from November 17 to November 19.
New Zealand Transport Agency system manager in Northland, Steve Matene, said the Brynderwyn Hills on State Highway 1 is a "crucial connection" for Northland.
"While there’s no perfect time for a closure, the selected dates and approach has been carefully considered to balance the impact on the community while ensuring we can do an efficient and quality job," said Matene.
"The decision to fully close the road has been made with freight and the community in mind. If we’d chosen to use stop/go traffic management, the works would’ve taken 12–14 weeks. Compare that to a full closure, which allows work to be completed in 6–8 days."
New Zealand Transport Agency contractors will have crews working 24 hours per day. It said paving the road in spring means the team will be able to take advantage of dryer and warmer conditions, and avoid disruption over multiple months.
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Outline of schedule:
- Thursday, November 13 (12.01 am) – Sunday, November 16 (11.59 pm). Road will be closed in both directions, with three detours in place.
- Monday, November 17 (12.01 am) – Wednesday, November 19 (11.59 pm). Road will be open in both directions for three days.
- Thursday, November 20 (12.01 am) – Sunday, November 23 (11.59 pm). Road will be closed in both directions, with three detours in place.
Outline of detours:
- Cove Road detour – light vehicles (trucks with trailers not permitted Mangawhai to Waipū).
- Paparoa Oakleigh Road detour – trucks and trucks with trailers up to 50MAX can use this route.
- SH12 / SH14 detour – Over dimensional heavy vehicles, High Productivity Motor Vehicles (HPMV) should use this route.
New Zealand Transport Agency said detours would be outlined with clear signage to direct traffic along the routes.
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