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Road Work: Christchurch Northern Corridor

Road works: Road Work

Christchurch Northern Corridor


Expected resolution
Mid 2020
Last updated
13 Jul 2018 11:29am

What's happening?

The Christchurch Northern Corridor (CNC) affects an area that extends from the Waimakariri River Bridge on the Northern Motorway to Cranford St and affects an area as far as Main North Rd in the west and Marshland Rd in the east.

The project involves three-laning the Waimakariri River Bridge, constructing and extending the four lanes of the Northern Motorway to Cranford St, upgrading Cranford St and four-laning part of QEII Dr. This project is being managed by the CNC Alliance, a collaboration of the NZ Transport Agency and Christchurch City Council.

This project, along with other scheduled works in the area, which include the Highfield subdivision development, Transport Agency safety improvements, KiwiRail maintenance and other city council improvements will cause a number of changes to roads in the area over the next two years (until 2020).

The below information is aimed at keeping the public aware of the latest transport impacts in the area to help them plan their travel.

To view the Transport Agency's project page and access detailed project information go to their website.

To view all roadworks check out the Christchurch roadworks map.

Current impacts in the area

  • Prestons Rd is one-way westbound from Hawkins Rd to Grimseys Rd. Eastbound traffic use QEII Dr or Radcliffe Rd as alternate routes.
  • Radcliffe Rd currently has a 50kmh temporary speed restriction in place.
  • QEII Dr no right turn into Grimseys Rd. Also expect increased congestion due to other restrictions in the area.

Impact changes coming up

  • From Monday July 16 Cranford St at Innes Rd intersection will have lane restrictions. Expect increased congestion during peak times.
  • From Monday July 16 Belfast Rd will be one-way eastbound from Blakes Rd to Marshland Rd.

Map of affected area

(Click for larger image)


Detailed Map of the Christchurch Northern Corridor 

(Click to enlarge)