Structuring of the shoreline will be carried out in the slip-off bank of the "Ybbs Scheibe" between river kilometre 2057.70 and 2054.90 by means of gravel filling. A sequence of gravel banks and gravel islands will be created, through which calm flow zones will emerge, along with shallow gravel surfaces that are flooded at low and mean-flow conditions.
The main goal of this measure is improvement of the living conditions and spawning areas for fish species requiring gravelly banks and bars, such as barbel, nase, zingel and Danube streber. Gravel is being taken from the main Danube riverbed in the area of the Erlauf estuary and distributed along the left bank of the Danube near Hagsdorf according to a detailed plan. The work is expected to be completed by the end of 2018. A total of 200,000 m3 of gravel are being moved.