Road users are advised to plan ahead for traffic delays for resurfacing works on the Cambridge section of State Highway 1 (SH1) Waikato Expressway starting on Monday 12 May, through to the end of July 2025.

Crews will be undertaking asphalt resurfacing, which involves removing the layer of the road and replacing it with a new asphalt surface.

The work over the next 2 weeks from Monday to Friday includes:

Asphalt resurfacing:

• Southbound left-hand lane (slow lane) between Thornton Road and the Southern Interchange starting 6am Monday 12 May and finishing 8pm Tuesday 13 May (Monday night inclusive)
• Northbound left-hand lane (slow lane) between the Southern Interchange and Thornton Road, starting 6am Monday 19 May and finishing 6pm Friday 23 May. Work will be carried out during these times:
• • Monday 19 May 6am to 8pm Tuesday 20 May
  • Wednesday 21 May 6am to 6pm Thursday 22 May 
  • Friday 23 May 6am to 6pm

• Northbound left-hand land between Thornton Road and Victoria Road interchange, starting Monday 26 May and finishing Thursday 29 May, between 6am and 6pm.

During this work, the right-hand lane will remain open, under a temporary speed limit of 50km/h.

Further updates on the next section of works will be shared before the end of May.

These works are weather dependent, and people are encouraged to visit the NZTA Journey Planner website journeys.nzta.govt.nz/traffic(external link) for up-to-date information on the works, before setting off.

NZTA thanks road users for their patience while we carry out these important works.

Pavement pit works

A reminder that geotechnical investigations are coming up on SH1 for the Cambridge to Piarere Expressway project, which will also cause some delays overnight.

Work is expected to get underway Sunday 11 May between 9pm and 6am, finishing on 17 May (weather dependent).

These works involve digging a 40cm x 40cm pit in the road so that our specialist equipment can investigate what is underneath and collect soil samples. Once one site is completed, the crew will patch up the road before moving to the next site.  

As this work is being done in the middle of the road there will be temporary traffic management in place, which will cause a small delay. Here’s what is coming up: 

• State Highway 1:
• • 5 sites between 333 and 425 Tīrau Road
  • 12 sites between 504 and 608 Tīrau Road
  • 2 sites between 946 and 977 Tīrau Road

• Karāpiro Road
  • 4 sites between 21 and 70 Karāpiro Road
• Hickey Road
  • 1 site between SH1 and 24 Hickey Road