Work on the Hamilton section of the Waikato Expressway will see night-time detours over two or three nights from Sunday, January 24.
Waka Kotahi NZ Transport Agency says State Highway 1 traffic will be detoured through Ngaruawahia on the old state highway route (Great South Road) while work is done where the Hamilton section ties into the Ngaruawahia section.
The works include moving barriers and installing Safe Hits lane sticks.
On Sunday, January 24, all northbound traffic will be detoured off the expressway at Horotiu between 8pm and 5am, before re-joining the expressway at Taupiri.
The following night, southbound traffic will be detoured at Taupiri and re-join the expressway at Horotiu. Depending on progress, the southbound detour may stretch to a second night.