Superload Big truck load rolls through A “superload” weighing 372 tonnes has completed its journey through central Colac on its way to a new power station. By David McKenzieMay 17, 2023 372-tonne transformer to roll through Colac A “superload” longer than a 747 plane, and weighing as much as two blue whales will pass through Colac this weekend, slowing traffic. By David McKenzieMay 12, 2023