The tug owner was held liable when the crane on a barge hit and damaged the Cambie Street bridge. The Court held the tug owner had a duty to inspect the tow, including the height of the crane, to ensure it was suitable for the intended voyage. The Court further considered the nature of the liability of a tug owner for an unmanned tow and questioned whether a tug could not be held liable in bailment for damage caused to an unmanned tow.