A section of State Highway 3 between Whanganui and Palmerston North will be closed during the day for three weeks in October.
The closure was to allow part of the road at Awahuri to be rebuilt, Waka Kotahi NZ Transport Agency said.
The work will be carried out from Monday, October 3, to Thursday, October 20, between 6am and 6pm, Monday to Saturday.
During this time, SH3 will be closed between Stewart and Awahuri Feilding Rds.
Traffic travelling south towards Palmerston North will be diverted down Stewart Rd to Awahuri Feilding Rd, with northbound traffic taking the same route in reverse.