There Are Special Water Bridges, Which Go To The Ships,As a rule, the appearance of water bridges is the result of lining of water channels for navigation at a different height than the rivers. At the same channel as the channel intersects the river, used for navigation. Near the water bridge, as a rule, is boat lift or lock to move ships in the channel or river.Europe's longest water bridge in the German city of Magdeburg - Magdeburg Water Bridge. It has a length of 918 meters, it was built from 24 000 tons of steel and 68,000 cubic meters of concrete.