Speed restrictions on parts of State Highways 36 and 29a are expected to stay in place for the weekend.
The SH36 Kennedy Rd to Pyes Pa Rd, SH29a between Poike Roundabout and Welcome Bay Roundabout, and SH29a approaching Maungatapu Bridge from Matapihi areas were recently resealed but a mechanical failure has resulted in the stone (chip) not adhering to the road.
The road will be repaired as soon as the weather allows.
New Zealand Transport Agency Bay of Plenty transport system manager Rob Campbell said people should expect delays if they were travelling through the area.
"We'd like to apologise in advance for any inconvenience this restricted speed may cause, we are treating the repair work as a priority," Campbell said.