Project update

Finishing touches

The Christchurch Northern Corridor (CNC) Alliance Crew is almost ready to finish up at our site office. However, work will continue on some small jobs and the landscaping. In October we will be back to do the final seal and asphalt layer on the motorway and QEII Drive. 

We have all loved working on this project and being part of this community. Thank you all for understanding when we were noisy or getting in your way and thank you for getting involved when we had things to celebrate. 

Final sealing and low noise asphalt starting October

Starting in October this year, we will apply a second layer of chip seal on the new motorway, the local road bridges and parts of QEII Drive. This layer makes the road surface fully waterproof. Following on from this we will apply the final asphalt layer which will be noticeably quieter than the chip seal we have now.  We will start this work in October, and we will be finished in early 2022. It is likely that much of this work will need to happen at night.

We are waiting until October this year to give the motorway time to weather and compact for a year. The ground and air temperatures also need to be warm for the road sealing to work properly.

Attached here is a newsletter with more info on this work and some information on noise and how this final mitigation measure should reduce the traffic noise from the CNC.

Who to contact, frequently asked questions and videos

If you have questions about the project, now or in the future, you can visit the project website nzta.govt.nz/cnc

Waka Kotahi will continue to manage this page and contact details will be updated on the site as needed.  You could also take a look at our Frequently Asked Questions webpage. Or your question could be answered in one of our Videos.

All the best

Melanie

More information

For more information on the Christchurch Northern Corridor project, visit our website www.nzta.govt.nz/CNC