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I lavori di scavo per il terzo tubo del tunnel autostradale del Belchen sono iniziati oggi (martedì) a Hägendorf, nel canton Soletta. Sarà aperto nel 2022 e permetterà di risanare le due gallerie già esistenti senza provocare la formazione di code sulla A2. La chiusura prima dell'una e poi dell'altra, alternativa presa in considerazione in uno studio dell'USTRA, era stata scartata per i tempi troppo lunghi.
I lavori al Belchen
Il costo della nuova opera è stimato in 500 milioni di franchi. La fresa meccanica, con un diametro di 14 metri, lunga 75 metri e pesante 2'000 tonnellate, è la più grande in azione in Svizzera. Dovrebbe sbucare fra tre anni al portale settentrionale di Eptingen, nel cantone di Basilea Campagna. Verranno estratti 470'000 metri cubi di materiale.
Il tunnel è attraversato nelle due direzioni da 55'000 veicoli al giorno
Il Belchen è attraversato oggi nelle due direzioni da 55'000 veicoli al giorno, l'11% dei quali sono camion.
RG delle 18.30 del 09.02.16; il servizio di Mattia Serena
RSI Info 09.02.2016, 18:49
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