Seine Commercial craft (barges and push-tows) can use the river from Marcilly-sur-Seine, to its mouth. At Paris, there are 37 bridges. The river is only above sea level from its mouth, making it slow flowing and thus easily navigable. The Seine Maritime, from the English Channel at Le Havre to Rouen, is the only portion of the Seine used by ocean-going craft. The tidal section of the Seine Maritime is followed by a canalized section ("Basse Seine") with four large multiple locks until the mouth of the Oise at Conflans-Sainte-Honorine (170 km). Smaller locks at Bougival and at Suresnes lift the
Morsang-sur-Seine Morsang-sur-Seine Morsang-sur-Seine is a commune in the Essonne department in Île-de-France in northern France. Inhabitants of Morsang-sur-Seine are known as "Morsandiaux". The orientalist Rubens Duval (1839–1911) was born in Morsang-sur-Seine. Located right bank of the Seine, on a bend of the Seine and backed by the forest of Rougeau, Morsang-sur-seine is a rural Department of Essonne. Although at least 40 kilometers from Paris, by a wise policy planning, it has preserved its original charm and offers quiet and residential comfort. Village life as naturally turned toward the river (plant water production, shipbuilding, water sports, camping, fishing) to the forest (logging,