This is the first time the entirety of the gorge has been open since a one in 500-year storm event in July last year caused a number of slips, prompting significant remedial work.

While the majority of those repairs were completed earlier this month, traffic management has remained in place across a 200m stretch of the gorge to protect crew who were finishing off work on the longest retaining wall and to allow for the painting of a mural.

However, heavy rains in the area have hampered work on the mural, with the wall needing to be fully dry in order for temperature sensitive paint to be applied.

This work will now be completed at a later date.

A temporary speed limit of 50km will remain in place past the largest site (slip 8) at the top of the gorge.

Waka Kotahi thanks motorists for their cooperation and understanding and urges road uses to be mindful of changes to the road layout.

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Road resurfacing and drainage works will be carried out from 8.30am-5.00pm on these days. This follows emergency surfacing work undertaken on Friday 16 July.

It will be a large site with a variety of works going on at any given time. For the safety of road users and our workers, road closures are required. Traffic will be stopped for up to an hour at the base on either side of Mt Messenger for one hour at a time in order to allow crews to undertake the work, with traffic released regularly to clear queues.  

 Indicative timings for road closures are as below: 

Time  

Road status 

8.30–9.30am  

Closed  

9.30–10.00am  

Open  

10.00–11.00am  

Closed 

11.00–11.30am  

Open 

11.30–12.30pm 

Closed  

12.30–1.00pm 

Open 

1.00–2.00pm 

Closed 

2.00–2.30pm 

Open 

2.30–3.30pm 

Closed  

3.30–4.00pm  

Open 

4.00–5.00pm 

Closed  

5.00pm onward 

Open 

Please note that all traffic will be cleared every hour, no vehicles will queue for more than one closure period. 

In the event of unsuitable weather, works may require more days than planned. 

The road will be opened for emergency services vehicles. 

Waka Kotahi appreciates that these delays may be frustrating for road users, and we thank people for their patience while we undertake this important work. 

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Due to the extremely wet weather conditions over recent weeks, there will also be further work in relation to these changes in coming weeks on SH6.

This will include widening the highway shoulder and completing new line markings at the Wakefield change point, where the speed limits will change from 80 to 60. This is so people are clear about where the speed limit changes.

Waka Kotahi will also be changing the batteries and reprogramming speeds in the Speed Indicator Devices located at Hope (between Edens Road and Ranzau Road) and Brightwater (south of Ellis Street).

The speed indicator devices show people what speed they are going. They help to encourage people to drive to the speed limit and remind them to slow down if they are driving above the speed limit.

Thanks to all road users for slowing down around road crews and people working close to the highway in coming days.

More information

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District:

Counties Manukau

Police are currently at the scene of an incident on SH20 where a truck has struck the Walmsley Road overbridge.

The centre lane southbound is currently blocked and there is debris across the southbound lanes.

There is congestion as a result and motorists travelling southbound are advised to expect delays while the truck and debris are cleared from the motorway.

No injuries have been reported.

ENDS

Nick Baker/NZ Police

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District:

Counties Manukau

Police are assisting Fire and Emergency NZ at a building fire on Ti Rakau Drive, Burswood.

Police were notified at about 5:00pm and are assisting with traffic control.

Ti Rakau Drive is closed between Gossamer Drive and Trugood Drive and motorists are asked to avoid the area as there is significant congestion.

ENDS

Issued by Police Media Centre


District:

Counties Manukau

Emergency services are currently in attendance at a serious crash in Maraetai.

The single-vehicle crash was reported at around 2.10pm on Maraetai Drive, near Keanes Road.

Two people are reported to have critical injuries.

The road is currently closed and motorists are advised to avoid the area.

Cordons are in place at the intersection of Maraetai Drive/Maraetai School Road and at the roundabout at Whitford-Maraetai Road/Beachlands Road.

These are expected to remain in place for most of the afternoon.

The Serious Crash Unit has been advised.

ENDS

Nick Baker/NZ Police

The work will take place at night to avoid most daytime travellers – 7pm to 5am the next day, says Waka Kotahi NZ Transport Agency.

Road users will be allowed across the single lane bridge at the top of each hour.

The work is needed as a result of the late May/early June heavy rainfall and high river flow which damaged the bridge’s approaches and guardrail, says Waka Kotahi Journey Manager Tresca Forrester.

“Crews worked swiftly to reopen the Arthur’s Pass/SH73 route at the time, rebuilding the approaches on each side and now the permanent guardrail is ready to be installed.

“Thanks to all road users for building in the extra time next week if you use this route after 7 pm.”

Porter River Bridge is about 8 km west of Lake Lyndon between Lake Lyndon and Castle Hill Village.

Updates on this project and timings 

A view of the Porter River Bridge taken a year or more ago.

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