1,585 m Çorum-Laçin, Kırkdilim T3 Tunnel (under construction) – 2 x 1,578 m Çanakkale, Eceabat-Gelibolu, T2 (National Park 2) Tunnel (under construction) – 1 x 1,430 m Çorum-Laçin, Kırkdilim T1 Tunnel (under construction) – 2 x 1,409 m Antalya(Alanya), Dim-1 Tunnel (under construction) – 2 x 1,389 m Bitlis, Tatvan Bypass Road, T1 Tunnel (under construction) – 2 x 1,311 m Bitlis, Tatvan Bypass Road, T2 Tunnel (under construction) – 2 x 1,270 m Sivas(Divriği)-Malatya(Arapgir), Sarıçiçek-2 Tunnel (under construction) – 1 x 1,215 m Çorum-Laçin, Kırkdilim T2 Tunnel (under construction) – 2 x 1,197 m Ordu Ring Road, Terzili Tunnel (under construction) – 2 x 1,180 m Amasya-Tokat(Turhal), Aydınca Tunnel (under construction) – 2 x 1,100 m Adana, Kozan-Mansurlu, T1 Cut-Cover Tunnel (under construction) – 1 x 985 m Muğla, Bodrum(Ortakent)-Yalıkavak, Yalıkavak (Türkmen) Tunnel (under construction) – 2 x 950 m Mersin, Taşucu-Boğsak, Limankalesi Tunnel (under construction) – 2 x 851 m Mersin, Yenikaş-Gözce, Karadere Tunnels, T7 Tunnel (under construction) – 2 x 820 m Ordu Ring Road, T3 (Turnasuyu) Tunnel (under construction) – 2 x 816 m İstanbul, Şile-Ağva, T5 Tunnel (under construction) – 2 x 795 m Çanakkale, Eceabat-Gelibolu, T3 (National Park 1 / Eceabat) Tunnel (under construction) – 1 x 792 m Trabzon Bypass Road, Boztepe Tunnel (under construction) – 2 x 675 m Antalya, Kemer-Kumluca, Sarıören Tunnel (under construction) - 2 x 670 m Antalya, Alanya-Gazipaşa, Hasbahçe-Kargıcak Tunnels, T1 (Oba / Tosmar) Tunnel (under construction) – 2 x 668 m Çanakkale, Eceabat-Gelibolu, T1A (Bigalı) Tunnel (under construction) – 1 x 644 m Kastamonu, İnebolu-Küre, T5 Tunnel (under construction) – 2 x 620 m Gümüşhane-Kelkit, Yeniköy Tunnel (under construction) – 2 x 580 m Konya, Taşkent-Çetmi, Karagedik Tunnel (under construction) – 1 x 555 m Trabzon Bypass Road, Bahçecik Tunnel (under construction) – 2 x 550 m İstanbul, Şile-Ağva, T7 Tunnel (under construction) – 2 x 540 m Çanakkale, Eceabat-Gelibolu, T4 (Cennetköy) Tunnel (under construction) – 1 x 503 m İstanbul, Şile-Ağva, T6 Tunnel (under construction) – 2 x 464 m Çorum, Bayat-İskilip, Bayat Cut-Cover Tunnel (under construction) – 1 x 450 m Ordu Ring Road, T1 (Akçatepe-1) Tunnel (under construction) – 2 x 440 m Konya, Taşkent-Çetmi, Afşar Tunnel (under construction) – 1 x 440 m Niğde Downtown Tunnel (under construction) – 1 x 370 m Antalya, Alanya-Gazipaşa, Hasbahçe-Kargıcak Tunnels, T3 (Mahmutlar) Tunnel (under construction) – 2 x 340 m Trabzon Bypass Road, Çukurçayır-1 Tunnel (under