The Rhaetian Railway (RhB) has to repair the Foura d'Valorga viaduct near Ardez, which was built in 1911 and put into operation in 1913. The application was made for the use of an environmental construction supervisor. On the one hand, the environmental construction supervision aims to ensure that the legal requirements for environmental protection are complied with in the construction project. On the other hand, it ensures the greatest possible protection of nature and landscape, soil and water during the construction phase through appropriate measures.