The Repellent information layer locates each work of this type in the territory, which is surveyed by the Mountain Basins Service of the Autonomous Province of Trento. There are also data on the geometric characteristics of the work and the geomorphological context in which it is inserted.Repellents are part of the land register of hydraulic works, managed through the Information System of the service Bacini Montani (SIBaM). The cadastre lists the infrastructure built to mitigate alluvial hazards (hydraulic and forestry works) and infrastructure built in interference with watercourses for certain land use needs (e.g. bridges, crossings, etc.).