A tree-felling programme along the State Highway 50 Expressway link between the Pakowhai Rd intersection and the Tutaekuri River Bridge is expected to be wrapped up around June 15.
For safety reasons large poplars, many of which have begun spreading branches over the roadway, are being removed.
At times there could be traffic delays of up to five minutes, but those will be limited to between 9am and 3pm to avoid disrupting peak-hour flows.
Motorists are advised to allow for possible delays if heading for meetings, appointments or flights.
Further south, on SH2 at Waipukurau, two major work programmes are under way and motorists are advised that detours and closures are in place.