A 645-tonne super load — said to be one of the heaviest things ever moved on the state's roads — has begun making its way from the Port of Melbourne to Loy Yang in Victoria's Latrobe Valley.
The load contains a new generator transformer to be used at Alinta Energy's Loy Yang B coal-fired power station.
The super load is 119 metres long, 5.8 metres wide, and weighs 645.7 tonne including the weight of the trucks transporting the generator transformer.
The transformer itself weighs 340 tonnes.
Department of Transport spokesperson Chris Miller said travellers can visit the department's website to plan their journeys to avoid hold ups caused by the movement of the equipment.
"It's one of the heaviest things ever moved on Victorian roads," Mr Miller said.
"It's enormous, absolutely enormous.
"I reckon you'll be lucky if we get it to 25 [kilometres per hour], I would say more likely 15 to 20kph."
There are three legs to the super load journey from Port Melbourne to Loy Yang with the convoy travelling at night to minimise traffic disruption.
Drouin resident Loren McDonald's husband is a driver in the convoy. She stayed up until 3:00am with her children to watch the truck pass in the rain.
"He loves it. It's a pretty big operation," she said.
"Especially being the front truck he's on the ball all the time."
Gippsland truck driver Chris Grandit said he was impressed by the size of the super load.
"All the kids have Tonka trucks at home. You bring them out there to see something like this, of this calibre, and they just love it," he said.
Aboard the super load is a new generator transformer which will be kept on site at Loy Yang B as a useable spare and is suitable for use in both of Loy Yang B's units.
The transformer was built by Hyundai at its manufacturing facility in Ulsan, South Korea.
It was shipped from South Korea on April 17 and arrived into the Port of Melbourne on May 27.
It started the journey by road to Loy Yang B on June 1 and is due to arrive on June 4.
