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Road Work: Christchurch Northern Corridor

Travel Restrictions: Road Work

Christchurch Northern Corridor


Expected resolution
Mid 2020
Last updated
11 Oct 2018 12:19pm

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 putting three lanes on the Waimakariri River Bridge, constructing and extending the four lanes of the Northern Motorway to Cranford St, upgrading Cranford St and putting four lanes on 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 the roadworks check out the Christchurch Roadworks Map.

Current impacts in the area

  1. Work to put 3 lanes on the Wamakariri Bridge is currently underway. This work will ramp up over the rest of the year and is expected to be completed in 16 months. 
  2. Prestons Rd has been reduced to one lane under temporary traffic signals between Hawkins Rd to Grimseys Rd. Motorists are advised to use QEII Dr (SH 74) as an alternate route. 
  3. Radcliffe Rd currently has a 50kmh temporary speed restriction in place.
  4. QEII Dr no right turns into Grimseys Rd & no access to QEII Dr from Grimseys Rd. Also, expect increased congestion due to other restrictions in the area.  For details go visit the relevant page on the NZTA website here.  
  5. Rain has delayed moving traffic over to the new section of temporary road next to the existing QEII Drive. We will make this change as soon as the new chip seal has had time to fully dry out.When the temporary road is open the speed limit will be 50km/h for the first week due to loose gravel. Following this, the speed limit will be 60km/h until construction is finished.

  6. Cranford St at Innes Rd intersection has lane restrictions. Expect increased congestion during peak times.
  7. Belfast Rd will be one-way eastbound from Blakes Rd to Marshland Rd.

Impact changes coming up

  • Watch this space.