The Breakwater Rd stretch near the port will have temporary speed restrictions in place for the next three weeks as a "full width reconstruction" programme is carried out by contractors.
The work has been scheduled to take place between February 24 and March 13 and while two-lane traffic would be maintained during the week there would be closures on the weekend.
While there would be a slight impact on travel times for traffic on the stretch, the New Zealand Transport Agency has described the potential impact as "negligible".
There are, however, likely to be up to five minutes' impact on travel at times for motorists using the SH51 George's Drive and Hyderabad Rd intersection.
Road crews are carrying out a resurfacing programme and speed restrictions, as well as stop-go signalling, will be in place.