Waka Kotahi NZ Transport Agency advises motorists travelling between Tauranga and Katikati are currently experiencing delays of around 50 minutes due to several work sites in the area.
Bay of Plenty system manager Rob Campbell said to minimise disruption to motorists works have been carried out overnight.
However, he said temporary speed restrictions are required during the day to ensure the safety of road users and prevent damage to vehicles, and this is resulting in delays.
"These summer works are part of the biggest maintenance programme the Transport Agency has undertaken for the last decade. We appreciate it can be frustrating for road users and local residents, but these important works help improve the road, increase safety and make everyone's journeys more enjoyable."
Campbell encouraged motorists to plan ahead, allow extra time for their journeys and consider delaying unnecessary travel, where possible.
"The Transport Agency thanks motorists for their patience."
Plan ahead for a safe, enjoyable journey this summer. Keep up to date with:
Traffic updates: nzta.govt.nz/traffic
Journey planner: journeys.nzta.govt.nz
Phone: 0800 4 HIGHWAYS (0800 44 44 49)