Yapı Merkezi


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Concept Design
Design Development
Construction Information


The 1.28 Billion USD Eurasia road tunnel connecting the continents of Europe and Asia is one of the world’s largest infrastructure projects. The 5.4km long two-deck tunnel, 3.4 km of which is bored at a rate of 8-10 meters a day well below the sea bed, will connect the two sides of Istanbul’s Bosphorus. It is a complex of new roads, tunnels and infrastructure works covering 14.6km overall distance. A 13.7m diameter twin deck tunnel is bored utilising a Tunnel Boring Machine engineered specially for this project from Asia to Europe.