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
Course of the Klamath River the Klamath then bends southwest into a narrow gorge, still paralleling State Route 96. The river passes Clear Creek from the mouth and receives the creek of the same name as it begins to flow south-southeast; a little farther on, it receives Independence Creek from the left, then bends west as it receives King Creek from the left. Now incised into a narrow channel and meandering around sandbars and gravel bars, the river drops over rapid after rapid and turns south as it receives Dillon Creek from the right, from the mouth. Ti Creek enters from the left and Rock