Oder River

The Oder is a river that flows through Central Europe. The Oder begins in the Czech Republic and flows through western Poland for 742 kilometers (461 miles), eventually forming part of the Oder–Neisse line, which runs 187 kilometers (116 miles) between Poland and Germany. The river eventually empties into the Szczecin Lagoon north of Szczecin, where it splits into three branches (the Dziwna, Wina, and Peene) that discharge into the Baltic Sea's Bay of Pomerania. Following WWII, the Oder became Germany's far eastern boundary.

The Oder is navigable for a substantial portion of its course, all the way upstream to the town of Kole, where it meets the Gliwice Canal. The river's upstream section has been canalized, allowing larger barges (up to CEMT Class IV) to transit between the Wrocaw area's industrial enterprises.

The river is free-flowing farther downstream, passing through Eisenhüttenstadt and Frankfurt am Oder (where the Oder–Spree Canal connects the river to the Spree in Berlin). For smaller vessels, the river Warta forms a navigable connection between Pozna and Bydgoszcz downstream of Frankfurt. The Oder–Havel Canal re-joins the Berlin waterways in Hohensaaten.

Length: 854 km