The Great Istanbul Tunnel (Turkish: Büyük İstanbul Tüneli) is a planned multi-use highway and railway undersea tunnel in Istanbul, Turkey to cross the Bosphorus strait connecting the Europe side and Asia side. It will be the third and the longest tunnel crossing the Bosphorus strait, at a length of 6.5 km, surpassing the Eurasia Tunnel at 5.4 km and the Marmaray Tunnel at 13.5 km.
The Great Istanbul Tunnel (Turkish: Büyük İstanbul Tüneli) is a planned multi-use highway and railway undersea tunnel in Istanbul, Turkey to cross the Bosphorus strait connecting the Europe side and Asia side. It will be the third and the longest tunnel crossing the Bosphorus strait, at a length of 6.5 km, surpassing the Eurasia Tunnel at 5.4 km and the Marmaray Tunnel at 13.5 km.
Source: Wikipedia "Great Istanbul Tunnel" · CC BY-SA 4.0
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