Seine Navigation
Between Rouen and the sea, the Seine is navigable by ocean-going vessels, of up to  in length, and 150.000 tons in weight. This section of the river has a length of about . Ships of a draft of up to  can circulate. Draft is a word describe the height of the part of a ship that is below the water line. There are three bridges in this section. They can be raised. Because there are few briges, the river can be crossed by ferry, at different locations. Even if the port of Le Havre is more important for petroleum, that of Rouen is still important. About 25 million tons of produce is handled by the port of Rouen each year.