Settlements, commercial activities, and traffic routes are situated in the narrow valleys and small catchments within the Alps. This infrastructure has to be protected against natural hazards such as floods, torrents and avalanches, which have resulted in hydromorphological changes of the river and its banks. These pressures are of more local nature in the Swiss share of the sub-basin, and more widespread in the Austrian and German share of the Inn River subbasin as there is a chain of hydropower plants on the Lower Inn.