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“Il tunnel subportuale di Genova è il primo tunnel sottomarino realizzato in Italia, il più grande in Europa e il quarto al mondo per diametro”. Lo ha affermato lunedì l’amministratore delegato di Autostrade per l’Italia Roberto Tomasi, presentando il progetto alla cerimonia che ha segnato il via ufficiale ai lavori. Si è iniziato con la demolizione di un capannone da 25’000 metri quadrati nell’area di San Benigno, da dove la “talpa meccanica” verrà calata per scavare a una profondità fino a 45 metri.
La doppia galleria - un tunnel per senso di marcia, ognuno con un diametro di scavo di 16 metri - sarà lunga 3,5 chilometri, quasi come il progetto di ponte sullo Stretto di Messina. L’opera dovrebbe costare un miliardo di euro, costi aumentati per i rincari delle materie prime rispetto ai 700 milioni preventivati. Sboccherà nei pressi del Salone Nautico. Quando sarà pronta nel 2029, le auto potranno circolarvi a 70 km/h. È il progetto principale di compensazione del crollo del Ponte Morandi.
Cinque anni fa il crollo del ponte Morandi
Telegiornale 14.08.2023, 20:00
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