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
Niantic River water goes down to below sea level. Niantic River The Niantic River is a mainly tidal river in eastern Connecticut. It is crossed by the Niantic River Bridge carrying Amtrak's Northeast Corridor. It separates the towns of East Lyme and Waterford. The river is long.. The distance from the end of Banning Cove to the Niantic River Bridge is approximately 3.4 miles. There are many other water features that drain out into the Niantic River such as Oil Mill Brook and Stony Brook. The Niantic River itself, empties out into the Long Island Sound. About 12,000 years ago there were