m Ankara-İzmir Motorway, Kula-Adala(Salihli), T9 Motorway Tunnel (projected) – 2 x 4,637 m Ankara-İzmir Motorway, Adala(Salihli)-Gölmarmara, T10 Motorway Tunnel (projected) – 2 x 3,069 m Ankara-İzmir Motorway, Gölmarmara-Ahmetli, T11 Motorway Tunnel (projected) – 2 x 2,770 m Ankara-İzmir Motorway, Ahmetli-Turgutlu, T12 Motorway Tunnel (projected) – 2 x 857 m İzmir 2. Ring Road, T1 Motorway Tunnel (projected) – 2 x 1,880 m İzmir 2. Ring Road, T2 Motorway Tunnel (projected) – 2 x 1,200 m İzmir 2. Ring Road, T3 Motorway Tunnel (projected) – 2 x 6,420 m İzmir 2. Ring Road, T4 Motorway Tunnel (projected) – 2 x 1,800 m İzmir 2. Ring Road, T5 Motorway Tunnel (projected) – 2 x 4,675 m İzmir 2. Ring Road, T6 Motorway Tunnel (projected) – 2 x 2,150 m İzmir 2. Ring Road, T7 Motorway Tunnel (projected) – 2 x 1,400 m İzmir 2. Ring Road, T8 Motorway Tunnel (projected) – 2 x 3,900 m İzmir 2. Ring Road, T9 Motorway Tunnel (projected) – 2 x 1,100 m İskenderun-Antakya Motorway, Belen T1 Motorway Tunnel (projected) – 2 x 800 m İskenderun-Antakya Motorway, Belen T2 Motorway Tunnel (projected) – 2 x 8,050 m Sivrihisar-Bursa Motorway, Bozüyük-Pekmezli, T1 Cut-Cover Motorway Tunnel (projected) – 2 x 670 m Sivrihisar-Bursa Motorway, Bozüyük-Pekmezli, T2 Motorway Tunnel (projected)– - 2 x 3,560 m Çeşmeli-Taşucu Motorway, Silifke Motorway Tunnel (projected) – 2 x 1,570 m Şanlıurfa-Habur Motorway, T1 Motorway Tunnel (projected) – 2 x 1,487 m Şanlıurfa-Habur Motorway, T2 Cut-Cover Motorway Tunnel (projected) – 2 x 890 m Railway tunnels Nurdağı Tunnel (under construction) – 2 x 10,200 m Ayaş Tunnel (under construction) – 1 x 10,064 m Doğançay HSR Tunnel (under construction) – 1 x 7,470 m Çayırhan HSR Tunnel – 1 x 7,110 m İnönü-Vezirhan HSR Tunnel (under construction) – 1 x 6,100 m Deliktaş Tunnel – 1 x 5,473 m Afyonkarahisar, Köroğlubeli HSR Tunnel (under construction) – 1 x 5,200 m İstanbul-Ankara HSR Tunnel-36 – 1 x 4,100 m İstanbul-Ankara HSR Tunnel-15 – 1 x 3,934 m İstanbul-Ankara HSR Tunnel-8 – 1 x 3,816 m Konya HSR Tunnel – 1 x 2,030 m İzmir, Şirinyer Rail Tunnel – 1 x 2,000 m Marmaray (subsea) – 2 x 1,800 m İstanbul, Karaköy Funicular Tunnel – 1 x 573 m Water tunnels Bolu, Gerede Water Tunnel – 1 x 31,592 m Hadimi Water Tunnel (under construction) – 1 x 18,136 m Şanlıurfa Irrigation Tunnels – 2 x 26,400