The superload will travel in stages - mainly during the night to minimise disruptions.

The convoy is due to leave the Port of Geelong around 11pm Sunday night and will make its way to its rest stop in Winchelsea in the early hours of Monday morning.

The superload will be difficult to pass and delays are likely.

Roads impacted by the superload on Sunday night include Cox Road, Anakie Road, Geelong Ring Road and Princes Highway.

For safety reasons there will be no viewing areas. Drivers, pedestrians and cyclists are asked keep well clear during transit for their safety, and the safety of crews.

On Monday night, the convoy will travel from Winchelsea to Swan Marsh.

Roads impacted by the superload on Monday night include Princes Highway, Colac-Ballarat Road, Beeac-Dreetie Road and Larpent Road.

On Tuesday night, the convoy will travel from Swan Marsh to Origin's Energy Plant in Mortlake.

Roads impacted by the superload on Tuesday night include Princes Highway, Cobden-Stoneyford Road, Camperdown-Cobden Road, Princes Highway, Boundary Road and the Hamilton Highway.

VicRoads crews will help to get the superload safely around corners by temporarily removing signage and lights, ensuring steel supports are placed over existing drainage and will then put everything back in place.

Drivers travelling at the same time as the superload need to plan ahead, find an alternative route or allow more time.

For the latest traffic information around the state visit traffic.vicroads.vic.gov.au or download the VicTraffic app via your app store.

Have you signed up to The Standard's daily newsletter and breaking news emails? You can register below and make sure you are up to date with everything that's happening in the south-west.