how much does a modern locomotive weigh
Rating Newest Oldest. Best Answer: Locomotives weigh anywhere from 120 to 240 tons each, depending on the size. Mainline units are the heaviest, switcher units and yard engines are the lightest. Rail cars can weigh anywhere from 30 tons (empty) to 140 tons (loaded) each. Special cars designed to carry extra heavy loads can weigh well in excess of 200 tons.