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
Sjønstå River season. There are also plans to create the Lappland Hydroelectric Power Station, which, if it is realized, will change the flow of water in the Sjønstå River significantly by drawing large quantities of water from Swedish watercourses into Norway. Sjønstå River The Sjønstå River (, known as the "Langvasselva" in its upper course) is a river in the municipality of Fauske in Nordland county, Norway. The Sjønstå River is the main river of the Sulitjelma drainage system. The stretch from its source at "Langvatnet" (Long Lake) to the village of Sjønstå, where it empties into "Øvervatnet" (Upper Lake) has been