Abstract: The invention relates to a ship having at least one side port for loading and unloading. The main deck of the ship, which does not have any cargo hatches, supports a rectangular superstructure, the top ceiling of which supports a rail system for an overhead crane moving in the longitudinal direction of the ship, the side port being hinged at its lower end and forming a ramp which is connected to an intermediate cargo deck that moves up and down so that the ramp and the intermediate cargo deck can be aligned horizontally with the quay irrespective of the height of the quay, in which case the mixed cargo compiled into large uniform cargo units can be moved by a tractor-trailer into the ship for final positioning by the overhead crane.