Reply on topic: Ankara - İzmir YHT'de T1 tüneli kazısına başlandı
T1 tunnel construction started. It is part of 624 kilometre Ankara - İzmir YHT (high speed tunnel). T1 Tunnel is 624 km long. Out diameter 1...n 12 months. Ankara - İzmir YHT line has 49 tunnels. Total 23,1 kilometre. http...
cover tunnel photo by: Matt Brown from London, England / CC BY
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