As rainfall has become quantifiably more common and noticeably heavier throughout Switzerland in the last few decades, water-run off is continually increasing. As a result, flood protection and suitable constructions are becoming ever more important, including in Valais. Stream corrections in existing river and stream beds make a difference, as does the building of various protective structures. Additionally, reclamations reduce the negative effects of hydropower use. Volken Group uses its valuable experience in all these areas.