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Walnut Avenue intersection improvements project update
30 September 2021

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Our eStops will pause during the school holidays but will be operational again when school returns


Great reception for eStop traffic lights

Kia ora,

We're delighted with the way students have been using the eStops before and after school. They ensure that everyone has a safe place to cross State Highway 1. The eStops will not operate during the school holiday period but will be back up and running when school returns.

A big thank you to school principals and school communities for helping us to encourage good use of these.



Night work at Walnut Avenue, Ashburton River/Hakatere Bridge and at Tinwald

We have planned five nights of work so that we can finish temporary sealing where we have removed the Walnut Avenue roundabout islands at the intersections with East and West Streets. 

The work is scheduled from Sunday night, 3 October to Thursday night, 7 October, between 7pm and 6am.

Stop/Go traffic management will be in place.

On the same nights, there will also be work at Ashburton River/Hakatere Bridge (beginning at 9pm). Stop/Go traffic management will be in place, so be prepared for short delays. The deck surface will be smoothed and reinstated after pier repairs following the end of May floods. There will also be a full closure of the bridge on Sunday night 10 October, 10pm to 5am with a detour in place. The detour route will be sign posted, but people will need to build in some extra travel time.

Our colleagues, who are working on the NZ Upgrade Tinwald project, also have ground testing happening this Monday night 4 October and possibly on Tuesday. This noisy work will occur earlier in the night starting at 10pm and will be completed by 8am the following day. There will be a detour for north-bound traffic along Melcombe Street, parallel to the main road but otherwise minimum delays.

Please be patient with our night crews while they complete this work.


General work & traffic impacts at Walnut Avenue:

• A 30km/h speed restriction remains in place during the project to help keep road users and road workers safe. People are urged to travel through the site with extra care.
• There will mostly be two lanes of traffic available on SH1, with Stop/Go used intermittently.
• The project expected to take 18 months and be complete in late 2022/early 2023.




What is the NZ Upgrade Programme

Waka Kotahi and KiwiRail are delivering the New Zealand Upgrade Programme, the Government’s $8.7 billion transport investment in growing areas across the country.

Communities can look forward to transport improvements that provide more travel choices, help people get where they’re going safely and grow our economy, while responding to the impacts of travel on the environment.

Fourteen New Zealand Upgrade Programme projects are now under construction and 1000 jobs are already being supported. 

Find out more here.




More information


For more information on the Walnut Avenue intersection improvements project, contact us at or visit our website: