On the Tresa River: common emergency prevention and management

Closed

The project aims at territorial safety, to protect it from gravitational and flooding hazards. The Cadegliano-Viconago landslide has been active since 2000 with several debris flows which caused even prolonged closures, SP 61 interruptions and which affected the bed of the Tresa river (Italian-Swiss border). Investigations revealed such a deep movement that its complete stabilization isn't possible, and that needs continuous monitoring and policies to contain its effects. The specific objectives of the project are: - Reduction of the landslide collapse risk and of the related impact; - Monitoring of the phenomena and definition of a cross-border operational protocol in the event of a crisis (alternative roads are in Switzerland). - Construction of two ramps in blocks to reduce the erosive capacity (over 2 m lowering of the bottom in the last 15 years). - Partial restoration of the shore defense section on the left side of the intervention carried out after the 2002 event (inhabited area of ​​Cremenaga).

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