Project part-financed by the European Union (European Regional Development Fund)

The Interreg IVB North Sea Region Programme

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Realignment Wrauster Bogen


An area of 2.2 ha was realigned at the northern shore of the Elbe estuary upstream of the City of Hamburg. The position of the dyke was changed in order to create a tidal creek of approximately 400 m length (flow through system) in combination with an island of 300*40m². The northern shore of the creek was planted with grasses and willows aiming at accelerating the succession of the vegetation.

At flood tide a complete exchange of water occurred. However the creek could not be permanently used by fish due to too low water levels during ebb tide. Therefore the downstream opening of the creek was closed in 1994, and a sill was placed in the other opening in order to prevent the complete drainage of the creek.

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Report: Management measures analysis and comparison