SH1 Brynderwyn Hills recovery works

Reminder of upcoming closures

7 November 2025

‘Super weekend’ closures begin next week

Kia ora,

A reminder that the final resurfacing works for the SH1 Brynderwyn Hills recovery project are just around the corner. These will take place over two 4-day ‘super weekend’ closures in November.

Closure dates:

• Thursday 13 November (12:01am) to Sunday 16 November (11:59pm)
• Thursday 20 November (12:01am) to Sunday 23 November (11:59pm)

During these closures, detours will be in place. Please plan your journey ahead and allow extra time. These works will ensure SH1 is fully open for summer, supporting Northland’s freight and tourism peak season.

Detour routes:

While SH1 over the Brynderwyn Hills will be closed during the super weekends, Northland will remain accessible via three scenic alternative routes:

• Cove Road detour – light vehicles (trucks with trailers not permitted between Mangawhai and Waipū)
• Paparoa Oakleigh Road detour – trucks and trailers up to 50MAX can use this route (HPMVs not permitted)
• SH12 / SH14 detour – Over dimensional Heavy vehicles, High Productivity Motor Vehicles (HPMV) must use this route

Need help with detours?

• Whangārei District Council: 0800 932 463 / online
• Kaipara District Council: 0800 727 059  / online
• NZTA (SH12/SH14 detour): 0800 444 449 / online

For more details, read the November 2025 super weekend factsheet and visit the SH1 Brynderwyn Hills website.

Ngā mihi,
NZ Transport Agency Waka Kotahi

View larger detour map

SH1 Waipū to Uretiti: Chipsealing works

To make the most of the first super-weekend closure, our Northland maintenance team will also carry out chipsealing works on SH1 between Waipū and Uretiti. This 3km renewal, just north of Nova Scotia Drive, is one of the largest chipseal sites this season.

Chipsealing work is due to start at 7pm on Tuesday 11 November and will be completed by 5am Monday 17 November, weather permitting. A small section at the southern end will be swept and line marked on Monday night.

This timing has been carefully chosen to compliment the Brynderwyn Hills closure, when traffic volumes on this section of SH1 are expected to be much lower than usual. With nearly all freight and many regular vehicles using alternative detour routes, we will be able to complete the work quickly and minimise disruption to road users and local communities.

To further mitigate any inconvenience, this chipsealing will be carried out at night (7pm - 5am) under stop/go traffic management. Two lanes will remain open during the day at reduced speeds to help the new seal settle.

An important reminder – even if the road looks clear, please stick to the posted speed – it helps the new surface last longer and protects your windscreen from flying loose chips.

Please note, we do our best to stick to planned dates for state highway maintenance work, but weather, unforeseen circumstances, or other factors may cause changes. Before heading out, check the NZTA Journey Planner for the latest updates.

More information

For more information on the SH1 Brynderwyn Hills project, contact us at northlandproject@nzta.govt.nz

Visit our website www.nzta.govt.nz/brynderwyn-hills