Heavy machinery, including large cranes, will be moving a high voltage power line so work can continue on the roundabout as part of the Maungatapu underpass project.
Speed restrictions and lane closures will be in place on Saturday July 23 and Sunday July 24 between the hours of 7am and 6pm and drivers travelling through will experience lengthy delays.
Motorists are urged to use alternative routes or plan travel outside of these hours to avoid delays at the busy worksite.
This work is weather dependent and will take place the following weekend if delayed.
The Transport Agency apologises for any inconvenience and thanks motorists for their patience as work on the Maungatapu Underpass project continues.
For personalised information about driving conditions on their frequently used routes, motorists can sign up to On The Move at www.onthemove.govt.nz
For real time information on highway conditions and incidents or to report issues on the network visit www.nzta.govt.nz call 0800 4 HIGHWAYS (0800 44 44 49) or follow @nztawaibop on twitter. Or view current travel times on www.drivelive.nz/