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Le colate detritiche provocate da smottamenti in Val Parghera sono una minaccia per la strada cantonale (strada italiana), la nazionale N13, la linea della Ferrovia retica e le aree commerciali e di insediamento adiacenti nei territori di Coira e Domat/Ems: per limitare questi pericoli, il Governo grigionese ha comunicato oggi (giovedì) che verrà garantito un sussidio di 9,4 milioni di franchi.
Il progetto di protezione prevede, in particolare, un nuovo bacino di raccolta della capacità di 140'000-170'000 m3, destinato a sostituire quello esistente, che non rispetta i requisiti tecnici. Saranno inoltre realizzate delle dighe di deviazione e canalizzazione. La strada italiana dovrà essere spostata a valle di una quarantina di metri.
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