A reduced speed limit, lane closures and stop/slow controls will be in place on the Princes Highway, Illaroo Road and Bolong Road overnight from Tuesday June 30.
Utility investigations will be conducted on the Princes Highway, Illaroo Road and Bolong Road for up to five nights as part of the Nowra Bridge project.
Work close to surrounding roads will be carried out on weeknights only between 6pm and 5am from Tuesday 30 June, weather permitting.
Electronic message signs will be in place on the Princes Highway to advertise of work in advance.
Motorists are advised to drive to the conditions, and follow the directions of signs and traffic control.