NZ Transport Agency Waka Kotahi (NZTA) advises motorists to expect delays on the Ngāruawāhia section of State Highway 1 (SH1) Waikato Expressway from the evening of 22 November 2026, while road surface repairs are carried out.

Work is expected to take at least two weeks, with crews working day and night to complete the work as quickly as possible. Temporary traffic management will be in place for the duration of the work using a contraflow layout, which moves traffic onto one side of the expressway, allowing for one lane in each direction, to minimise delays.

Temporary speed limits of 50km/h and 70km/h will be in place 24/7 in the work areas. The repairs will address four sites across the expressway (totalling less than one kilometre) where the road surface does not meet the required standard.

NZTA advises motorists to allow extra time for their journeys and use alternative routes where possible. People travelling through the worksite should follow temporary signs and speed limits.