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
Port of Bundaberg a pipeline. Ship size is limited to 200 m in length overall. There are two berths. Port facilities began in the town reach of the Burnett River. This site became unsuitable for larger bulk ships. The port moved to the mouth of the river and was opened in 1958. In late December 2010, the port was closed due to the flooding of the Burnett River during the 2010–2011 Queensland floods. Emergency dredging occurred the following February to re-open the port, which was opened on 4 March 2011. Port of Bundaberg Port of Bundaberg is located at Burnett Heads, northeast of