Duwenbeek

Duwenbeek
Location	On the island of Rügen, Mecklenburg-Vorpommern,  Germany
Reference no.	DE: 967712
Basin features
Main source	near Bergen auf Rügen 25 m above sea level (NN) 54°25′28″N 13°25′21″E / 54.424556°N 13.422528°E / 54.424556; 13.422528Coordinates: 54°25′28″N 13°25′21″E / 54.424556°N 13.422528°E / 54.424556; 13.422528
River mouth	In the Koselower See 0 m above sea level (NN) 54°28′44″N 13°16′04″E / 54.478778°N 13.267889°E / 54.478778; 13.267889
Landmarks	Cities: keine Large towns: keine Small towns: Bergen Villages: Parchtitz, Kluis, Trent and Gingst
Tributaries	Left: Lanzengraben
Physical characteristics
Length	20 km
Navigable	no

The Duwenbeek is the largest stream on the German Baltic Sea island of Rügen. The stream originates on the northern edge of the borough of Bergen auf Rügen, flows around the Nonnensee on its eastern side and empties into the bay of Koselower See in front of the island of Ummanz and hence into the Baltic. It flows through the Rügen municipalities of Bergen auf Rügen, Parchtitz and Kluis and forms parts of the boundaries of the municipalities of Bergen, Trent and Gingst.

On the occasion of the world fair, Expo 2000, the project "Habitats - The Duwenbeek Project" (Lebensräume - Das Duwenbeek-Projekt), which envisaged the renaturalisation of the stream, was born. Elements of this project were the reflooding of the Nonnensee, the establishment of a wetpark at Herrenhaus in Boldevitz and a stone embankment to reduce the velocity of the stream in the reed belt of the Koselower See.

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