Motorists can expect delays along Nelson Bay Road from today.
Work is starting on safety improvements to the northbound lanes south of Marsh Road near Bobs Farm, with $800,000 being spent on new shoulders and resurfacing.
Work will be carried out between 7am and 5pm, while the resurfacing work will take pace at night.
Roads and Maritime Services says a 40 kilometre per hour speed zone will be in place, with the work expected to take about 8 weeks, weather permitting.
