Brenner Base Tunnel TBM Serena reaches state border between Italy and Austria
Brenner Base Tunnel TBM Serena reaches state border between Italy and Austria from BBT seYeni Zigana Tüneli (Zigana Taban Tüneli - Zigana Base Tunnel)
Karadeniz Bölgesini Doğu Anadolu Bölgesi'ne bağlayacak tünellerden Yeni Zigana Tüneli (Zigana Tab...olu (East Anatolian) regions and existing Zigana Tunnel. Image by Turkish Transpo...
cover tunnel photo by: Matt Brown from London, England / CC BY
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