page_title: Oder
section_title: Navigation
hierarchical_section_title: Oder / Navigation
caption_attribution_description: Polski: Słup graniczny Polska - Niemcy na wysokości miasta Kostrzyn English: Boundary Poland - Germany at the height of the city Kostrzyn
context_page_description: The Oder is a river in Central Europe and Poland's third-longest river after the Vistula and Warta. It rises in the Czech Republic and flows 742 kilometres through western Poland, later forming 187 kilometres of the border between Poland and Germany as part of the Oder–Neisse line. The river ultimately flows into the Szczecin Lagoon north of Szczecin and then into three branches that empty into the Bay of Pomerania of the Baltic Sea.
context_section_description: The Oder is navigable over a large part of its total length, as far upstream as the town of Koźle, where the river connects to the Gliwice Canal. The upstream part of the river is canalized and permits larger barges (up to CEMT Class IV) to navigate between the industrial sites around the Wrocław area.
  Further downstream the river is free-flowing, passing the towns of Eisenhüttenstadt (where the Oder–Spree Canal connects the river to the Spree in Berlin) and Frankfurt upon the Oder. Downstream of Frankfurt the river Warta forms a navigable connection with Poznań and Bydgoszcz for smaller vessels. At Hohensaaten the Oder–Havel Canal connects with the Berlin waterways again.
  Near its mouth the Oder reaches the city of Szczecin, a major maritime port. The river finally reaches the Baltic Sea through the Szczecin Lagoon and the river mouth at Świnoujście.
caption: The Oder dividing Poland and Germany seen from the Polish side near Kostrzyn (Küstrin)
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