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Riprenderanno domenica i lavori di messa in sicurezza della galleria del San Salvatore, sulla A2. La terza fase dei lavori, ancora legati al crollo di un paramento avvenuto nel giugno scorso, durerà circa un mese.
Il cantiere nella canna Nord-Sud, come già per le fasi precedenti, sarà attivo unicamente durante le ore notturne, dalle 21.00 alle 05.00. Il traffico verrà gestito bidirezionalmente nella canna opposta e durante questa fascia oraria l'uscita di Melide in direzione sud sarà chiusa.
In galleria verranno anche posati degli apparecchi capaci di misurare le pressioni esercitate dall'acqua sulla roccia e, a titolo sperimentale, verranno installate delle fibre ottiche per monitorare eventuali deformazioni del tunnel.
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