List of tunnels in Turkey

This incomplete list of tunnels in Turkey includes any road, rail, or waterway tunnel in Turkey. Tunnels are listed in decreasing order of their length.

Road tunnels

 * Trabzon (Maçka) - Gümüşhane (Torul), New Zigana Tunnel – 2 x 14,476 m
 * Rize (İkizdere) - Erzurum (İspir), Ovit Tunnel – 2 x 14,346 m
 * Giresun, Dereli-Şebinkarahisar, Eğribel Tunnel – 2 x 5,910 m
 * İstanbul, Eurasia Subsea Tunnel (subsea) – 2 x 5,400 m
 * Çankırı (Ilgaz) - Kastamonu, Ilgaz Tunnel – 2 x 5,391 m
 * Artvin, Hopa (Çavuşlu) - Borçka (Çifteköprü), T3 (3. Cankurtaran) Tunnel – 2 x 5,228 m
 * Antalya(İbradı)-Konya(Derebucak), Demirkapı Tunnel – 2 x 5,068 m
 * Bayburt (Aydıntepe) - Gümüşhane - Trabzon (Araklı), Salmankaş (Şehit Hamit Şahin) Tunnel – 2 x 4,150 m
 * İzmir-Manisa, Sabuncubeli Tunnel – 2 x 4,085 m
 * Çanakkale, Ayvacık-Küçükkuyu, T2 (Troya) Tunnel – 2 x 4,017 m
 * Ordu, Perşembe-Fatsa, Nefise Akçelik (Hapan/Hapağan) Tunnel – 2 x 3,825 m
 * İstanbul, Çamlıca-Libadiye Tunnel – 2 x 3,690 m
 * Ordu Ring Road, Boztepe Tunnel – 2 x 3,313 m
 * Rize Ring Road, Salarha Tunnel – 2 x 2,977 m
 * Kahramanmaraş-Göksun, Ahmet Eskalen (Göksun-T2) Tunnel – 2 x 2,895 m
 * Trabzon, Maçka New Tunnel – 2 x 2,802 m
 * Trabzon(Maçka)-Gümüşhane(Torul), Başar Tunnel – 2 x 2,676 m
 * Denizli, Honaz Tunnel – 2 x 2,640 m
 * Çanakkale, Eceabat-Gelibolu, Anafartalar Tunnel – 1 x 2,560 m
 * Kahramanmaraş-Göksun, Çağlayan Tunnel – 2 x 2,545 m
 * Bilecik-Vezirhan, Osmangazi (Kocatepe) Tunnel – 2 x 2,474 m
 * Trabzon, Coastal Highway, Akyazı (Yıldızlı) Tunnel – 2 x 2,472 m
 * Malatya-Elazığ, Kömürhan Tunnel – 2 x 2,400 m
 * İstanbul, Dolmabahçe-Bomonti Tunnel – 2 x 2,390 m
 * Bartın, Çakraz-Kurucaşile, Dizlermezeci (T3) Tunnel – 2 x 2,350 m
 * Mersin, Yenikaş-Gözce, Karadere Tunnels, T8 Tunnel – 2 x 2,309 m
 * Van (Gevaş) - Bitlis (Tatvan), Kuskunkıran (Kuzgunkıran) Tunnel – 2 x 2,306 m (2nd tube projected)
 * Artvin-Yusufeli, Oruçlu Ripage Tunnel – 1 x 2,277 m
 * Erzurum(Uzundere)-Artvin(Yusufeli), Pirinkayalar (Lake Tortum) Tunnel – 1 x 2,272 m
 * Giresun-Tirebolu, Tirebolu Volunteer 42nd Regiment Tunnels, Tirebolu Variant-1 (T1) Tunnel – 2 x 2,175 m
 * Ankara (Kızılcahamam) – Çankırı (Çerkeş) Tunnel – 1 x 2,071 m
 * Ordu Ring Road, Öceli Tunnel – 2 x 2,034 m
 * İstanbul, Sarıyer-Çayırbaşı Tunnel – 2 x 2,025 m
 * Sinop-Boyabat, Ahmet Muhip Dıranas Tunnel – 1 x 2,016 m
 * Ordu, Ünye Bypass Road, Yunus Emre (Saca) Tunnel – 2 x 1,996 m
 * Bitlis Bypass Road, T1 (8 August/Bitlis) Tunnel – 2 x 1,947 m
 * Bartın, Çakraz-Kurucaşile, Çakraz (T1) Tunnel – 2 x 1,936 m
 * Ordu, Mesudiye (Pınarlı-Topçam), T2 (Topçam) Tunnel – 1 x 1,920 m
 * Trabzon, Araklı-Arsin, Araklı (Konakönü) Tunnel – 2 x 1,906 m
 * Giresun (Doğankent) - Gümüşhane (Kürtün), Güvenlik (Doymuş) Tunnel – 1 x 1,835 m
 * Malatya (Doğanşehir) - Adıyaman (Gölbaşı), Erkenek Tunnel – 2 x 1,830 m
 * Ordu, Altınordu (Gümüşköy) - Mesudiye (Pınarlı), T10 (Çağlayan) Tunnel – 1 x 1,767 m
 * Trabzon (Maçka) - Gümüşhane (Torul), Old Zigana Tunnel – 1 x 1,702 m
 * Çanakkale, Ayvacık-Küçükkuyu, T1 (Assos) Tunnel – 2 x 1,693 m
 * Sinop-Gerze, Demirciköy Tunnel – 2 x 1,680 m
 * İzmir, Konak Tunnel – 2 x 1,674 m
 * Karaman (Taşkent) - Antalya (Alanya), Çayarası-3 Tunnel – 1 x 1,671 m
 * Sivas, Ulaş-Kangal, Yağdonduran Tunnel – 2 x 1,650 m
 * İstanbul, Kağıthane-Piyalepaşa Tunnel – 2 x 1,625 m
 * Malatya, Akçadağ-Darende, Karahan Tunnel – 2 x 1,600 m
 * Bartın, Çakraz-Kurucaşile, Cumayanı (T2) Tunnel – 2 x 1,600 m
 * Sinop (Gerze) - Samsun (Yakakent), Yenikent Tunnel – 2 x 1,598 m
 * Mersin, Silifke-Aydıncık, Boğsak Tunnel - 2 x 1,573 m
 * Zonguldak-Kilimli, Mithatpaşa-2 (Prof Dr. Teoman Duralı Tunnel-2 / İkinci Makas) Tunnel – 2 x 1,546 m
 * Karaman (Taşkent) - Antalya (Alanya), Çayarası-5 Tunnel – 1 x 1,514 m
 * İstanbul, Sabiha Gökçen Airport Cut-Cover Tunnel – 2 x 1,500 m
 * Zonguldak, Kozlu-Ereğli, Değirmenağzı-4 (Ilıksu-4) Tunnel – 1 x 1,468 m
 * Van, Bahçesaray-Çatak, Karabet Snow Tunnel – 1 x 1,400 m
 * Rize (Çayeli) - Artvin (Pazar), Çayeli Tunnel – 2 x 1,392 m
 * Artvin, Kemalpaşa-Hopa, Selimiye Tunnel – 1 x 1,366 m
 * Çanakkale, Eceabat-Gelibolu, Conkbayırı Tunnel – 1 x 1,355 m
 * Giresun-Dereli, Duroğlu Tunnel – 2 x 1,318 m
 * İstanbul, Kasımpaşa-Hasköy Tunnel – 2 x 1,316 m
 * Trabzon-Maçka, Deliklitaş Tunnel – 2 x 1,306 m
 * Antalya, Kemer-Kumluca, Phaselis (Alacasu) Tunnel – 2 x 1,305 m
 * Sinop-Gerze, Çiftlik (Çiflikköy) Tunnel – 2 x 1,285 m
 * Erzurum (İspir) - Artvin (Yusufeli), T2 (Arkun / Arkın) Tunnel – 1 x 1,275 m
 * Gümüşhane (Kürtün) - Giresun (Doğankent), Elceğiz Tunnel – 1 x 1,265 m
 * Ankara, Çayırhan-Nallıhan, Çayırhan Connection Tunnel – 2 x 1,262 m
 * Rize, Pazar-Çayeli, Pazar-1 Tunnel – 2 x 1,238 m
 * Karaman (Taşkent) - Antalya (Alanya), Çayarası-4 Tunnel – 1 x 1,211 m
 * Kahramanmaraş-Göksun, Tekir (T2) Tunnel – 2 x 1,205 m
 * Artvin, Hopa-Kemalpaşa, Kopmuş Tunnel – 1 x 1,162 m
 * Kahramanmaraş-Göksun, Göksun-T1 Tunnel – 2 x 1,143 m
 * Mersin, Yenikaş-Gözce, Karadere Tunnels, T4 Tunnel – 2 x 1,124 m
 * Rize (Fındıklı) - Artvin (Arhavi), Kıyıcık Tunnel – 2 x 1,121 m
 * Antalya-Göynük, Orhan Büyükalp Tunnel – 2 x 1,100 m
 * Ordu, Topçam-Mesudiye, Mesudiye Tunnel – 1 x 1,109 m
 * Bartın-Amasra, Amasra Tunnel – 1 x 1,065 m
 * Artvin, Arhavi-Hopa, Arhavi Tunnel – 2 x 1,052 m
 * Bolu (Mengen) - Zonguldak (Devrek), Dorukhan Tunnel – 2 x 1,050 m
 * Ordu, Topçam-Mesudiye, Çaltepe Tunnel – 1 x 1,042 m
 * Ordu, Mesudiye (Pınarlı-Topçam), T1 (Topçam) Tunnel – 1 x 1,040 m
 * Mersin, Silifke-Aydıncık, Karayar Tunnel – 2 x 1,033 m
 * Trabzon Bypass Road, Beşirli Tunnel – 2 x 1,031 m
 * Ordu, Altınordu (Gümüşköy) - Mesudiye (Pınarlı), T6 (Akpınar) Tunnel – 1 x 1,016 m
 * Antalya-Göynük, Altan Ayağ (Beldibi) Tunnel – 2 x 1,013 m
 * Rize, İyidere-Derepazarı, Sarayköy-1 Tunnel – 2 x 1,004 m
 * Giresun, Espiye-Keşap, Uluburun Tunnel – 2 x 980 m
 * Amasya, Ferhat Tunnel – 1 x 970 m
 * Muğla, Fethiye-Dalaman, Göcek Tunnel – 2 x 950 m
 * Samsun (Havza) - Amasya (Suluova), Havza Tunnel – 2 x 923 m
 * Amasya(Gümüşhacıköy)-Çorum(Osmancık), Badal Tunnel – 2 x 921 m
 * Rize, İyidere-İkizdere, Hurmalık-1 Tunnel – 2 x 878 m
 * Amasya-Taşova, Akdağ Tunnel – 1 x 875 m
 * Rize, İyidere-Derepazarı, Sarayköy-2 Tunnel – 2 x 856 m
 * Mersin, Silifke-Aydıncık, Limankale Tunnel - 2 x 851 m
 * Bilecik-Vezirhan, Ertuğrulgazi (Kaletepe) Tunnel – 2 x 840 m
 * Mersin, Silifke-Aydıncık, Büyükeceli T2 Tunnel – 2 x 836 m
 * Amasya Beltway, T1 Tunnel – 2 x 829 m
 * Mersin (Anamur) - Antalya (Gazipaşa), Anamur-T5 Tunnel – 2 x 827 m
 * Şırnak-Cizre, Cudi-2 (Şehit Jandarma Yüzbaşı Mustafa Erdal) Tunnel – 2 x 822 m
 * Mersin, Yenikaş-Gözce, Karadere Tunnels, T7 Tunnel – 2 x 820 m
 * Rize, İyidere-İkizdere, Hurmalık-2 Tunnel – 2 x 815 m
 * İstanbul, Taksim Square Cut-Cover Tunnel – 2 x 800 m
 * Artvin-Yusufeli, Şehirler-1 Tunnel – 1 x 800 m
 * İstanbul, Şile-Ağva, T5 Tunnel – 2 x 795 m
 * Çanakkale, Eceabat-Gelibolu, 57. Alay (Eceabat) Tunnel – 1 x 792 m
 * Artvin, Hopa-Borçka, T1 (1. Cankurtaran) Tunnel – 2 x 780 m
 * Şırnak-Cizre, Cudi-1 (Şehit Güvenlik Korucusu Dündar Page) Tunnel – 2 x 751 m
 * Ordu, Ünye Bypass Road, Bayramca (Gürecili/Gürecülü) Tunnel – 2 x 741 m
 * Ordu, Topçam-Mesudiye, Ilışar Tunnel – 1 x 729 m
 * İstanbul, Ümraniye-Üsküdar, Vecdi Diker Tunnel – 2 x 720 m
 * Karabük-Yenice National Road, Suçatı Tunnel – 1 x 705 m
 * İstanbul, Beykoz-Kavacık, Halil Ulukurt Tunnel – 2 x 690 m
 * Trabzon Bypass Road, Boztepe Tunnel – 2 x 687 m
 * Malatya, Hekimhan-Yazıhan, Hasançelebi Variant T3 Tunnel – 2 x 669 m
 * Giresun, Tirebolu Volunteer 42nd Regiment Tunnels, Tirebolu Variant-2 (T2) Tunnel – 2 x 661 m
 * Rize, Pazar-Çayeli, Pazar-2 Tunnel – 2 x 660 m
 * Ordu, Altınordu (Gümüşköy) - Mesudiye (Pınarlı), T7A (Darıcabaşı/Şehit Onur Karakuş) Tunnel – 1 x 653 m
 * Çanakkale, Eceabat-Gelibolu, Arıburnu (Bigalı) Tunnel – 1 x 644 m
 * Batman, Hasankeyf-Gercüş, Hasankeyf Tunnel – 2 x 638 m
 * Artvin, Hopa-Kemalpaşa, Esenkıyı Tunnel – 1 x 638 m
 * Zonguldak-Devrek, Üzülmez (Asma) Tunnel – 2 x 630 m
 * Malatya, Hekimhan-Yazıhan, Çebiş (Hekimhan/Çepiç) Tunnel - 2 x 626 m
 * Ordu, Altınordu (Uzunisa-Gümüşköy), T2 (Gümüşköy) Tunnel - 1 x 620 m
 * Bursa (İnegöl) - Bilecik (Bozüyük), Mezit Tunnel – 1 x 606 m
 * Artvin-Yusufeli, İşhan-3 Tunnel - 1 x 600 m
 * Erzurum (İspir) - Rize (İkizdere), Özbağ-1 Tunnel – 2 x 593 m
 * Burdur (Bucak) - Antalya (Aksu), Kargı Tunnel – 1 x 580 m
 * Trabzon, Of-Çaykara, T1 Tunnel – 1 x 575 m
 * Giresun (Eynesil) - Trabzon (Beşikdüzü), Eynesil Tunnel – 2 x 574 m
 * Trabzon, Sürmene-Of, Çamburnu Tunnel – 1 x 573 m
 * Zonguldak-Devrek, Sapça Tunnel – 2 x 571 m
 * Ordu, Altınordu (Gümüşköy) - Mesudiye (Pınarlı), T7B (Darıcabaşı) Tunnel – 1 x 565 m
 * Ordu, Altınordu (Gümüşköy) - Mesudiye (Pınarlı), T5 (Yeşilpınar/Şehit Şeref Kıran) Tunnel – 1 x 558 m
 * Samsun (Vezirköprü) - Sinop (Durağan), Kocakaya Tunnel – 1 x 553 m
 * Sivas Urban Road, Mevlana Tunnel – 2 x 550 m
 * Erzurum (İspir) - Artvin (Yusufeli), Güllübağ Tunnel – 1 x 550 m
 * Artvin, Kemalpaşa-Hopa, Liman Tunnel – 1 x 546 m
 * İstanbul, Şile-Ağva, T7 Tunnel – 2 x 540 m
 * Mersin (Anamur) - Antalya (Gazipaşa), Anamur-T1 Tunnel – 2 x 537 m
 * Trabzon Bypass Road, Bahçecik Tunnel – 2 x 534 m
 * Ordu, Altınordu (Uzunisa-Gümüşköy), T3 (Gümüşköy) Tunnel – 1 x 525 m
 * Kahramanmaraş-Göksun, Göksun-T0 Tunnel – 2 x 518 m
 * Erzurum (İspir) - Rize (İkizdere), Özlüce Tunnel – 2 x 516 m
 * Mersin (Anamur) - Antalya (Gazipaşa), Anamur-T2 Tunnel – 2 x 501 m
 * Elazığ, Maden-Sivrice, Maden Tunnel – 1 x 486 m
 * İstanbul, Şile-Ağva, T6 Tunnel – 2 x 464 m
 * Karaman, Ermenek-Görmeli, Ermenek Tunnel – 1 x 457 m
 * Hakkari, Yüksekova-Esendere, Sarıtaş Tunnel – 1 x 445
 * Adapazarı, Karasu-Kaynarca, Karasu Tunnel – 2 x 410 m
 * Erzurum, İspir-Pazaryolu, İspir Tunnel – 2 x 536 m
 * Ordu, Altınordu (Gümüşköy) - Mesudiye (Pınarlı), T3 (Pınarlı/Şehit Ahmet Güneşdoğdu) Tunnel – 1 x 445 m
 * Trabzon Coastal Highway, Akyazı (Kanuni) Connection Tunnel – 1 x 441 m
 * Zonguldak-Kilimli, Aslankaya (Aslankayası) Tunnel – 2 x 440 m
 * Malatya, Hekimhan-Yazıhan, Hasançelebi Variant T1 Tunnel – 2 x 440 m
 * Amasya Beltway, T2 Cut-Cover Tunnel – 2 x 425 m
 * Bitlis-Siirt (Baykan), T3 (Deliklitaş-2/Semiramis-2) Tunnel – 1 x 420 m
 * Gümüşhane (Kürtün) - Giresun (Doğankent), Taşlıca Tunnel – 1 x 416 m
 * Ordu, Topçam-Mesudiye, Geyikkaya (Bayırköy/Şehit Özer Ayrancı) Tunnel – 1 x 410 m
 * Karabük-Yenice National Road, Yellikaya Tunnel – 1 x 410 m
 * Amasya Beltway, T4 (Turan Eren) Tunnel – 2 x 409 m
 * Siirt (Baykan)-Bitlis, Demirışık (Demir Işık) Cut-Cover Tunnel – 2 x 403 m
 * Mersin, Silifke-Aydıncık, Büyükeceli T1 Tunnel – 2 x 396 m
 * Erzurum (İspir) - Artvin (Yusufeli), T1 (Karakale) Tunnel – 1 x 395 m
 * Samsun (Havza) - Amasya (Suluova), Şehzadeler Tunnel – 2 x 392 m
 * Sivas (Koyulhisar) - Tokat (Reşadiye), Aşağıkale (Kaletepe) Tunnel – 1 x 390 m
 * Giresun-Dereli, Taşlıca Tunnel – 1 x 386 m
 * Mersin, Yenikaş-Gözce, Karadere Tunnels, T5 Tunnel – 2 x 385 m
 * Malatya-Elazığ, Martyr Burhan Gatfar Tunnel – 2 x 382 m
 * Artvin, Kemalpaşa-Sarp Kemalpaşa Tunnel – 1 x 377 m
 * Ordu, Altınordu (Uzunisa-Gümüşköy), T6 (Kuylu) Tunnel – 1 x 371 m
 * Bitlis-Siirt (Baykan), T2 (Deliklitaş-1/Semiramis-1) Tunnel – 1 x 369 m
 * Giresun, Espiye-Keşap, Arıdurak Tunnel – 2 x 366 m
 * Artvin, Hopa-Borçka, T2 (2. Cankurtaran) Tunnel – 2 x 365 m
 * Afyonkarahisar Beltway, Karahisar Tunnel – 2 x 365 m
 * Giresun, Espiye-Keşap, Geçilmez Tunnel – 1 x 362 m
 * Malatya, Hekimhan-Yazıhan, Hasançelebi Variant T2 Tunnel – 2 x 357 m
 * Artvin, Kemalpaşa-Sarp, Üçkardeşler-2 Tunnel – 1 x 353 m
 * Sinop, Gerze Tunnel – 2 x 352 m
 * Zonguldak, Kozlu-Ereğli, Değirmenağzı-5 (Ilıksu-5) Tunnel – 1 x 350 m
 * Karabük-Yenice National Road, Balıkısık-1 Tunnel – 1 x 350 m
 * Trabzon, Maçka Old Tunnel – 1 x 340 m
 * Trabzon Bypass Road, Çukurçayır-1 Tunnel – 2 x 338 m
 * Zonguldak-Kilimli, Mithatpaşa-1 (Prof Dr. Teoman Duralı Tunnel-1 / Bağlık) Tunnel – 2 x 337 m
 * Antalya-Beldibi, Adnan Sezgin Tunnel – 2 x 332 m
 * Erzurum (İspir) - Rize (İkizdere), Özbağ-2 Tunnel – 2 x 332 m
 * Giresun-Dereli, Dereli Tunnel – 1 x 331 m
 * Mersin, Yenikaş-Gözce, Karadere Tunnels, T6 Tunnel – 2 x 330 m
 * Malatya (Doğanşehir) - Adıyaman (Gölbaşı), Erkenek Old Tunnel – 1 x 330 m
 * Erzincan (Üzümlü) - Erzurum (Tercan), Mutu (Muti) Tunnel – 2 x 328 m
 * İstanbul, Haliç Congress Center, Sütlüce Cut-Cover Tunnel – 2 x 320 m
 * Ordu, Altınordu (Gümüşköy) - Mesudiye (Pınarlı), T8 (Özlükent/Şehit Ozan Özmen) Tunnel – 1 x 316 m
 * Muğla (Yatağan) - Aydın (Çine), Gökbel Tunnel – 2 x 315 m
 * Ordu, Perşembe-Fatsa, Asarkayası Tunnel – 2 x 314 m
 * Amasya Beltway, T3 Cut-Cover Tunnel – 1 x 304 m
 * Trabzon(Maçka)-Gümüşhane(Torul), Dikkaya Tunnel – 2 x 300 m
 * Ordu, Altınordu (Uzunisa-Gümüşköy), T5 (Kuylu) Tunnel – 1 x 300 m
 * Karabük-Yenice National Road, Şahinkayası Tunnel – 1 x 298 m
 * Malatya, Hekimhan-Yazıhan, Hasançelebi Tunnel – 2 x 297 m
 * Malatya (Hekimhan) - Sivas (Kangal), Karakısık-1 Tunnel – 2 x 293 m
 * İstanbul, Ümraniye-Üsküdar, Tantavi Tunnel – 2 x 290 m
 * Malatya (Hekimhan) - Sivas (Kangal), Karakısık-2 Tunnel – 2 x 281 m
 * Samsun (Havza) - Amasya (Suluova), 19 May Tunnel – 2 x 280 m
 * Karabük-Yenice National Road, Balıkısık-2 Tunnel – 1 x 280 m
 * Trabzon, Çarşıbaşı-Akçaabat, Yoroz Tunnel – 1 x 274 m
 * Ordu, Altınordu (Gümüşköy) - Mesudiye (Pınarlı), T1 (Pınarlı/Şehit Osman Güner) Tunnel – 1 x 271 m
 * Çorum (İskilip) - Kastamonu (Tosya), İskilip Tunnel – 1 x 269 m
 * İstanbul, Altıntepe (Bostancı) Tunnel (1957) – 1 x 268 m
 * Zonguldak, Kozlu-Ereğli, Değirmenağzı-1 (Ilıksu-1) Tunnel – 1 x 268 m
 * Ordu, Altınordu (Gümüşköy) - Mesudiye (Pınarlı), T9 (Özlükent) Tunnel – 1 x 263 m
 * Mersin, Silifke-Aydıncık, Büyükeceli T3 Tunnel – 2 x 262 m
 * Ordu, Perşembe-Fatsa, Kozbükü Tunnel – 2 x 261 m
 * Ordu, Altınordu (Gümüşköy) - Mesudiye (Pınarlı), T4 (Pınarlı/Şehit Murat Öndin) Tunnel – 1 x 259 m
 * Ordu, Altınordu (Gümüşköy) - Mesudiye (Pınarlı), T2 (Pınarlı/Şehit Canip Demircan) Tunnel – 1 x 257 m
 * Gümüşhane, İkisu-Şiran, Gümüşkaya (Aynalı, Aynalı Viraj) Tunnel – 1 x 254 m
 * Giresun-Dereli, Iklıkçı Tunnel – 1 x 252 m
 * Kocaeli, Başiskele-Gölcük, Bahçecik Cut-Cover Tunnel – 2 x 250 m
 * Van, Çatak-Gevaş, Çatak Snow Tunnel – 1 x 250 m
 * Karaman (Taşkent) - Antalya (Alanya), Çayarası-2 Tunnel – 1 x 247 m
 * Malatya, Hekimhan-Yazıhan, Sarsap (Karaca/Yazıhan) Tunnel – 2 x 240 m
 * Trabzon Bypass Road, Beşirli Cut-Cover Tunnel – 2 x 240 m
 * Karabük-Yenice National Road, İkizdere Tunnel – 1 x 240 m
 * Karabük-Yenice National Road, Bolkuş Tunnel – 1 x 239 m
 * Muğla, Bafa-Milas, Karacabel Tunnel – 2 x 236 m
 * Kahramanmaraş-Göksun, Döngel Tunnel – 2 x 236 m
 * Bitlis-Siirt (Baykan), T4 (Buzlupınar) Tunnel – 2 x 233 m
 * Ordu, Altınordu (Uzunisa-Gümüşköy), T1 (Karaağaç) Tunnel – 1 x 232 m
 * Kahramanmaraş-Göksun (Tekir) Ridgeway, Püren Tunnel – 1 x 225 m
 * Karabük-Yenice National Road, Çakmakkaya Tunnel – 1 x 225 m
 * Karaman (Taşkent) - Antalya (Alanya), Çayarası-1 Tunnel – 1 x 224 m
 * Trabzon Bypass Road, Çatak Cut-Cover Tunnel – 2 x 223 m
 * Ordu, Altınordu (Uzunisa-Gümüşköy), T4 (Kuylu) Tunnel – 1 x 220 m
 * Zonguldak, Kozlu-Ereğli, Değirmenağzı-3 (Ilıksu-3) Tunnel – 1 x 219 m
 * Giresun-Dereli, Çalca Tunnel – 1 x 217 m
 * Artvin, Kemalpaşa-Sarp, Üçkardeşler-1 Tunnel – 1 x 216 m
 * Artvin, Arhavi-Hopa, Arhavi Old Tunnel – 1 x 212 m
 * Karabük-Yenice National Road, Yassıkaya Tunnel – 1 x 212 m
 * Karabük-Yenice National Road, Yalnızca Tunnel – 1 x 205 m
 * Giresun, Tirebolu-Espiye, Kiliseburnu Tunnel – 2 x 200 m
 * Giresun-Keşap, Aksu (Keşap) Tunnel – 2 x 199 m
 * Ordu, Altınordu (Gümüşköy) - Mesudiye (Pınarlı), T9A (Özlükent) Tunnel – 1 x 195 m
 * Ordu, Altınordu (Gümüşköy) - Mesudiye (Pınarlı), T11 (Gelinkaya) Tunnel – 1 x 192 m
 * Kütahya, Simav-Gediz, Uğurlugüme Cut-Cover Tunnel – 2 x 190m
 * Rize, Pazar-Çayeli, Pazar Entrance Cut-Cover Tunnel – 2 x 188 m
 * Karabük-Yenice National Road, Keltepe Tunnel – 1 x 185 m
 * Zonguldak-Devrek, Gökgöl Tunnel – 1 x 180 m
 * Ordu, Perşembe-Fatsa, Tekkebak Tunnel – 2 x 170 m
 * Sinop-Gerze, Lala Cut-Cover Tunnel – 2 x 168 m
 * Bitlis-Siirt (Baykan), T5 (Doğudeniz/Sarıkonak) Tunnel – 2 x 160 m
 * Sinop, Dikmen-Akgüney, Güzelçay Tunnel – 1 x 160 m
 * Kastamonu, İnebolu-Küre, Yenigün Tunnel – 1 x 160 m
 * Artvin, Kemalpaşa-Sarp, Sarp-3 Tunnel – 1 x 157 m
 * Artvin, Kemalpaşa-Sarp, Sarp-2 Tunnel – 1 x 152 m
 * Ordu, Bolaman-Perşembe, Çaka (Hoynat) Tunnel – 1 x 151 m
 * Ordu, Perşembe-Fatsa, Kadıoğlu Tunnel – 2 x 150 m
 * Sinop, Boyabat-Saraydüzü, Yeşilyurt Cut-Cover T2 Tunnel – 1 x 146 m
 * Trabzon Coastal Highway, Trabzon (Çömlekçi) Tunnel – 2 x 144 m
 * Zonguldak, Kozlu-Ereğli, Değirmenağzı-2 (Ilıksu-2) Tunnel – 1 x 132 m
 * Zonguldak-Kilimli, Kapuz-Uzunkum Cut-Cover (T0) Tunnel – 2 x 131 m
 * İstanbul, Beylerbeyi-Kuzguncuk, Beylerbeyi Köprüaltı Tunnel – 1 x 130 m
 * Sinop-Boyabat, Hıdırlı Cut-Cover Tunnel – 2 x 129 m
 * Karabük-Yenice, Karabük Downtown Cut-Cover Tunnel – 1 x 120 m
 * Karabük-Yenice National Road, Alaçamkaya Tunnel – 1 x 117 m
 * Rize, Pazar-Çayeli, İkiztepe (Pazar) Tunnel – 1 x 115 m
 * Artvin, Kemalpaşa-Sarp, Sarp-1 Tunnel – 1 x 108 m
 * Hakkari-Yüksekova, Erzikli Tunnel – 1 x 107 m
 * Karabük-Yenice National Road, Deligeçit Tunnel – 1 x 104 m
 * Karabük-Yenice National Road, Ezankaya Tunnel – 1 x 98 m
 * Sinop, Boyabat-Saraydüzü, Yeşilyurt Cut-Cover T1 Tunnel – 1 x 96 m
 * Hakkari-Yüksekova, Arslankaya Tunnel – 1 x 96 m
 * Giresun-Dereli, Çınarcık (T5) Tunnel – 1 x 75 m
 * İstanbul, Silahtarağa Tunnel – 1 x 75 m
 * Rize (Çayeli) - Artvin (Pazar), Çayeli Old Tunnel – 2 x 70 m
 * Karabük-Yenice National Road, Pirinçlik Tunnel – 1 x 69 m
 * Ordu-Perşembe, Perşembe Tunnel – 1 x 67 m
 * Şanlıurfa, Birecik Tunnel – 1 x 66 m
 * Hakkari-Yüksekova, Yeniköprü Tunnel – 1 x 67 m
 * Karabük-Yenice National Road, Ulubelen Tunnel – 1 x 36 m

Road tunnels (under construction)

 * Antalya(Gazipaşa-Güneyköy)-Mersin(Anamur-Kaledran), Gökçebelen Tunnel (under construction) – 2 x 11,250 m
 * Antalya(Akseki)-Konya(Seydişehir), Alacabel Tunnel (under construction) – 2 x 7,360 m
 * Erzurum-İspir, Kırık (Hortik/Gölyurt) Tunnel (under construction) – 2 x 7,105 m
 * İstanbul, Sarıyer-Kilyos Tunnel (under construction) – 2 x 6,875 m
 * Bayburt(Maden)-Erzurum(Aşkale), Kop Tunnel (under construction) – 2 x 6,500 m
 * Gümüşhane, Pirahmet-Kelkit, Pekün (Ünlüpınar) Tunnel (under construction) – 2 x 6,350 m
 * Gümüşhane-Bayburt, Vauk T2 Tunnel (under construction) – 2 x 5,950 m
 * Gümüşhane, İkisu-Şiran, Tersun Tunnel (under construction) – 2 x 5,500 m
 * Kastamonu, İnebolu-Küre, T4 Tunnel (under construction) – 2 x 5,277 m
 * Erzincan, Refahiye-İliç, Sünebeli Tunnel (under construction) – 2 x 5,242 m
 * Ardahan, Posof-Damal, Ilgar (Ulgar) Tunnel (under construction) – 2 x 4,962 m
 * Erzurum(Çat)-Bingöl(Karlıova), Çirişli Tunnel (under construction) – 2 x 4,750 m
 * Bartın, Çakraz-Kurucaşile, Karaman (T4) Tunnel (under construction) – 2 x 4,630 m
 * Hakkari, Yüksekova-Yeniköprü, T2 Tunnel (under construction) – 2 x 4,570 m
 * Erzurum, Tortum-Narman, Kireçli-Şehitler (Kutumar) Tunnel (under construction) – 2 x 4,375 m
 * Sivas, Zara-Suşehri, Geminbeli (Gemin) Tunnel (under construction) – 2 x 4,294 m
 * Hakkari, Yüksekova-Yeniköprü, T1 Tunnel (under construction) – 2 x 3,960 m
 * İstanbul, Dolmabahçe-Levazım Tunnel (under construction) – 2 x 3,900 m
 * Kastamonu, Küre-Seydiler, Uzunöz (T2) Tunnel (under construction) – 2 x 3,690 m
 * Burdur-Çeltikçi, Çeltikçi Beli (Çeltikçi) Tunnel (under construction) – 2 x 3,500 m
 * Erzurum(Olur)-Artvin(Ardanuç), Olur-Ardanuç Tunnel (under construction) – 1 x 3,490 m
 * Muğla(Seydikemer)-Burdur(Söğüt), Karabel Tunnel (under construction) – 2 x 3,363 m
 * Karaman-Mersin(Mut), Sertavul Tunnel (under construction) – 2 x 3,290 m
 * Van, Başkale-Gürpınar, Güzeldere (32 Curve) Tunnel (under construction) – 2 x 3,137 m
 * Bartın, Çakraz-Kurucaşile, Tekkeönü (T5) Tunnel (under construction) – 2 x 3,125 m
 * Erzurum-İspir, Dallıkavak (Kuzgun) Tunnel (under construction) – 2 x 3,105 m
 * Kastamonu, Küre-Seydiler, T1 Tunnel (under construction) – 2 x 2,696 m
 * Çanakkale, Eceabat-Gelibolu, T5 (Ilgardere) Tunnel (under construction) – 1 x 2,558 m
 * İzmir, Buca Onat Tunnel (under construction) – 2 x 2,543 m
 * Zonguldak, Göbü-Filyos, T5 Tunnel (under construction) – 2 x 2,520 m
 * Ardahan, Çıldır-Aktaş, Aşık Şenlik (Mozeret) Tunnel (under construction) – 2 x 2,308 m
 * Bursa-Orhaneli, Doğancı Variant Tunnel (under construction) – 1 x 2,300 m
 * Antalya-Burdur, Çubukbeli (Çubuk) Tunnel (under construction) – 2 x 2,200 m
 * Zonguldak, Filyos-Saltukova, T1 Tunnel (under construction) – 2 x 2,200 m
 * Kastamonu, İnebolu-Küre, T3 Tunnel (under construction) – 2 x 2,060 m
 * Zonguldak, Göbü-Filyos, T4 Tunnel (under construction) – 2 x 2,045 m
 * Zonguldak, Kilimli-Çatalağzı, T7 Tunnel (under construction) – 2 x 1,910 m
 * Konya, Taşkent-Çetmi, Çetmi Tunnel (under construction) – 1 x 1,770 m
 * Ordu Ring Road, T2 (Akçatepe-2) Tunnel (under construction) – 2 x 1,740 m
 * Zonguldak, Muslu-Göbü, T6 Tunnel (under construction) – 2 x 1,700 m
 * Gümüşhane-Bayburt, Vauk T1 Tunnel (under construction) – 2 x 1,650 m
 * Antalya, Alanya-Gazipaşa, Hasbahçe-Kargıcak Tunnels, T2 (Dim / Kestel) Tunnel (under construction) – 2 x 1,633 m
 * Sivas(Divriği)-Malatya(Arapgir), Sarıçiçek-1 Tunnel (under construction) – 1 x 1,585 m
 * Çorum-Laçin, Kırkdilim T3 Tunnel (under construction) – 2 x 1,578 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
 * Gaziantep, Şahinbey Tunnel (under construction) – 2 x 1,178 m
 * Amasya-Tokat(Turhal), Aydınca Tunnel (under construction) – 2 x 1,010 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
 * Ordu Ring Road, T3 (Turnasuyu) Tunnel (under construction) – 2 x 816 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
 * Zonguldak, Kilimli-Çatalağzı, T8 Tunnel (under construction) – 2 x 660 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
 * Çanakkale, Eceabat-Gelibolu, T4 (Cennetköy) Tunnel (under construction) – 1 x 503 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
 * Zonguldak, Göbü-Filyos, T2 Tunnel (under construction) – 2 x 440 m
 * Konya, Taşkent-Çetmi, Afşar Tunnel (under construction) – 1 x 440 m
 * Zonguldak, Göbü-Filyos, T3 Tunnel (under construction) – 2 x 400 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
 * İstanbul, Şile-Ağva, T3 Tunnel (under construction) – 2 x 335 m
 * Konya, Taşkent-Çetmi, Balcılar Tunnel (under construction) – 1 x 300 m
 * İstanbul, Şile-Ağva, T4 Tunnel (under construction) – 2 x 267 m
 * Antalya(Alanya), Dim-2 Tunnel (under construction) – 2 x 205 m
 * İstanbul, Cebeci Road, Habibler Cut-Cover Tunnel (under construction) – 2 x 135 m

Road tunnels (projected)

 * Zonguldak Beltway, Gökgöl-Ilıksu Tunnel (projected) – 2 x 13,000 m
 * Ardahan-Artvin(Şavşat), Sahara Tunnel (projected) – 2 x 12,976 m
 * Hatay, Dörtyol-Hassa, Amanos T4 Tunnel (projected) – 2 x 12,320 m
 * Erzurum-Tekman, Palandöken Tunnel (projected) – 2 x 12,155 m
 * Trabzon(Çaykara)-Bayburt(Aydıntepe), Soğanlı (Soğanlıdağ) Tunnel (projected) 2 x 11,220 m
 * Antalya, Manavgat-Akseki, Ahmetler Tunnel (projected) – 2 x 10,585 m
 * Erzurum-İspir, Kavaklıdere Tunnel (projected) – 2 x 10,000 m
 * Erzincan-Refahiye, Sakaltutan Tunnel (projected) – 2 x 8,780 m
 * Van, Gevaş-Bahçesaray T1 Tunnel (projected) – 1 x 7,970 m
 * Antalya, Finike-Demre T1 Tunnel (projected) – 2 x 7,910 m
 * Kayseri(Tomarza)-Adana(Tufanbeyli), Berçin (Dede Beli) Tunnel (projected) – 2 x 6,845 m
 * Sivas(İmranlı)-Erzincan(Refahiye), Kızıldağ Tunnel (projected) – 2 x 6,600 m
 * Great Istanbul Tunnel, European Side Two Layered Tunnel (projected) – 2 x 6,500 m
 * Bitlis(Tatvan)-Van(Gevaş), Yelkenli Tunnel (projected) – 2 x 6,250 m
 * Giresun, Dereli-Şebinkarahisar, Pınarlar Tunnel (projected) – 1 x 6,011 m
 * Gümüşhane(Kelkit)-Erzincan, Pöske (Ahmediye) Tunnel (projected) – 2 x 6,000 m
 * Kütahya(Domaniç)-Bursa(İnegöl), Hayme Ana (Kocadağ/Kocayayla) Tunnel (projected) – 2 x 6,000 m
 * Artvin, Borçka, Macahel (Camili) Tunnel (projected) – 1 x 5,990 m
 * Ağrı(Doğubeyazıt)-Van(Çaldıran), Tendürek Tunnel (projected) – 2 x 5,500 m
 * Giresun Ring Road, Gülyalı-Keşap T16 Tunnel (projected) –2 x 5,387 m
 * Antalya, Manavgat-Akseki, Karpuzçay-2 Tunnel (projected) – 2 x 4,920 m
 * Afyonkarahisar, İscehisar-Bayat, Köroğlubeli Tunnel (projected) – 2 x 4,825 m
 * Tokat-Sivas(Yıldızeli), Çamlıbel Tunnel (projected) – 2 x 4,700 m
 * Giresun Ring Road, Gülyalı-Keşap T19 Tunnel (projected) – 2 x 4,652 m
 * Erzurum-Pasinler, Nenehatun Tunnel (projected) – 2 x 4,600 m
 * Hatay, Dörtyol-Hassa, Amanos T1 Tunnel (projected) – 2 x 4,560 m
 * Great Istanbul Tunnel, Asian Side Two Layered Tunnel (projected) – 2 x 4,400 m
 * Bolu(Mudurnu)-Sakarya(Akyazı), Hodan (T2) Tunnel (projected) – 2 x 4,370 m
 * Sivas(Gürün)-Kayseri(Pınarbaşı), Mazıkıran Tunnel (projected) – 2 x 4,200 m
 * Fatsa Beltway, T1 Tunnel (projected) – 2 x 4,060 m
 * Gümüşhane(Kürtün)-Trabzon(Tonya), T4 Tunnel (projected) – 1 x 3,630 m
 * Kastamonu-Tosya, Tosya Tunnel (projected) – 2 x 3,625 m
 * Antalya, Manavgat-Akseki, Karpuzçay-1 Tunnel (projected) – 2 x 3,565 m
 * Antalya, Alanya-Gazipaşa, Kargıcak-Yeşilöz Tunnels, T1 (Kargıcak) Tunnel (projected) – 2 x 3,540 m
 * Giresun Ring Road, Gülyalı-Keşap T13 Tunnel (projected) – 2 x 3,456 m
 * Ardahan(Posof), Gümüşkavak Tunnel (projected) – 2 x 3,395 m
 * İstanbul, Levazım-Akatlar Tunnel (projected) – 2 x 3,360 m
 * Antalya, Kaş-Kalkan, Pınarbaşı Tunnel (projected) – 2 x 3,330 m
 * Antalya(Akseki)-Konya(Seydişehir), Tınaztepe Tunnel (projected) – 2 x 3,300 m
 * Gaziantep Beltway, Dülük Tunnel (projected) – 2 x 3,250 m
 * Fatsa Beltway, T3 Tunnel (projected) – 2 x 3,090 m
 * Giresun Ring Road, Gülyalı-Keşap T20 Tunnel (projected) – 2 x 3,085 m
 * İstanbul, Levazım-Zincirlidere Tunnel (projected) – 2 x 2,940 m
 * Balıkesir(Bigadiç)-Kütahya(Simav), Demirci-Düvertepe Tunnels, T2 Tunnel (projected) – 2 x 2,874 m
 * Trabzon(Çaykara)-Bayburt(Aydıntepe), Karaçam Tunnel (projected) 2 x 2,870 m
 * Bolu(Mudurnu)-Sakarya(Akyazı), Dokurcun (T7) Tunnel (projected) – 2 x 2,860 m
 * Antalya, Manavgat-Akseki, Beydiğin (T1) Tunnel (projected) – 2 x 2,820 m
 * Rize, Hemşin-Çamlıhemşin T4 Tunnel (projected) – 1 x 2554 m
 * Konya Beltway, Seydişehir-Beyşehir, T2 Tunnel (projected) – 2 x 2,500 m
 * Giresun Ring Road, Gülyalı-Keşap T15 Tunnel (projected) – 2 x 2,426 m
 * Giresun Ring Road, Gülyalı-Keşap T8 Tunnel (projected) – 2 x 2,405 m
 * Hatay, Dörtyol-Hassa, Amanos T2 Tunnel (projected) – 2 x 2,238 m
 * Rize, Hemşin-Çamlıhemşin T5 Tunnel (projected) – 1 x 2232 m
 * Giresun Ring Road, Gülyalı-Keşap T3 Tunnel (projected) – 2 x 2,164 m
 * Trabzon(Çaykara)-Bayburt(Aydıntepe), Köknar Tunnel (projected) 2 x 1,990 m
 * Balıkesir(Bigadiç)-Kütahya(Simav), Demirci-Düvertepe Tunnels, T4 Tunnel (projected) – 2 x 1,932 m
 * Antalya, Kaş-Kalkan, Çağlarca Tunnel (projected) – 2 x 1,920 m
 * Konya Beltway, Hospital-Kırankaya, T5 Tunnel (projected) – 2 x 1,910 m
 * Giresun Ring Road, Gülyalı-Keşap T2 Tunnel (projected) – 2 x 1,865 m
 * Ankara, Ulus Cut-Cover Tunnel (projected) – 2 x 1,860 m
 * Giresun Ring Road, Gülyalı-Keşap T4 Tunnel (projected) – 2 x 1,749 m
 * Antalya, Alanya-Gazipaşa, Kargıcak-Yeşilöz Tunnels, T2 (İsbatlı) Tunnel (projected) – 2 x 1,700 m
 * Giresun Ring Road, Gülyalı-Keşap T7 Tunnel (projected) – 2 x 1,672 m
 * Antalya, Alanya-Gazipaşa, Kargıcak-Yeşilöz Tunnels, T3 (Demirtaş) Tunnel (projected) – 2 x 1,640 m
 * Balıkesir(Bigadiç)-Kütahya(Simav), Demirci-Düvertepe Tunnels, T1 Tunnel (projected) – 2 x 1,592 m
 * Antalya, Demre-Kaş, T2 Tunnel (projected) – 2 x 1,590 m
 * Giresun Ring Road, Gülyalı-Keşap T17 Tunnel (projected) – 2 x 1,575 m
 * Hakkari-Ördekli Tunnels, T1 (projected) – 1 x 1,525 m
 * Gümüşhane-Köse, Mount Köse Tunnel (projected) – 1 x 1,500 m
 * Mersin(Tarsus)-Adana(Pozantı), Şehitler Tunnel (projected) – 1 x 1,500 m
 * Balıkesir(Bigadiç)-Kütahya(Simav), Demirci-Düvertepe Tunnels, T3 Tunnel (projected) – 2 x 1,458 m
 * Muğla, Fethiye-Dalaman, Gökçeovacık (North Göcek) Tunnel (projected) – 2 x 1,440 m
 * Giresun Ring Road, Gülyalı-Keşap T14 Tunnel (projected) – 2 x 1,375 m
 * Fatsa Beltway, T8 Tunnel (projected) – 2 x 1,370 m
 * Antalya, Demre-Kaş, T3 Tunnel (projected) – 2 x 1,345 m
 * İstanbul(Ağva)-Kocaeli(Kandıra)-Sakarya(Kaynarca) Highway, Tunnel-2 (Kandıra-Avdan) (projected) – 2 x 1,345 m
 * Fatsa Beltway, T2 Tunnel (projected) – 2 x 1,310 m
 * Giresun Ring Road, Gülyalı-Keşap T6 Tunnel (projected) – 2 x 1,280 m
 * Antalya, Demre-Kaş, T4 Tunnel (projected) – 2 x 1,270 m
 * Giresun Ring Road, Gülyalı-Keşap T5 Tunnel (projected) – 2 x 1,267 m
 * Ardahan, Posof-Türkgözü, Eminbey Tunnel (projected) – 2 x 1,200 m
 * Balıkesir(Bigadiç)-Kütahya(Simav), Demirci-Düvertepe Tunnels, T6 Tunnel (projected) – 2 x 1,196 m
 * Çanakkale, Eceabat-Kilitbahir, Kilitbahir Tunnel (projected) – 1 x 1,179 m
 * Van, Gevaş-Bahçesaray T2 Tunnel (projected) – 1 x 1,170 m
 * Giresun Ring Road, Gülyalı-Keşap T11 Tunnel (projected) – 2 x 1,135 m
 * Giresun Ring Road, Gülyalı-Keşap T9 Tunnel (projected) – 2 x 1,108 m
 * Fatsa Beltway, T5 Tunnel (projected) – 2 x 1,040 m
 * Denizli Beltway, Çamlık Tunnel (projected) – 2 x 1,000 m
 * Giresun Ring Road, Gülyalı-Keşap T18 Tunnel (projected) – 2 x 970 m
 * Bolu(Mudurnu)-Sakarya(Akyazı), Hisar (T4) Tunnel (projected) – 2 x 970 m
 * Bolu(Mudurnu)-Sakarya(Akyazı), Akyar (T5) Tunnel (projected) – 2 x 965 m
 * Kahramanmaraş, Elbistan-Ekinözü, Belan Tunnel (projected) – 1 x 960 m
 * Giresun Ring Road, Gülyalı-Keşap T21 Tunnel (projected) – 2 x 953 m
 * Konya Beltway, Hospital-Kırankaya, T6 Tunnel (projected) – 2 x 900 m
 * Bolu, Mudurnu Bypass Road, Mudurnu Tunnel (projected) – 2 x 896 m
 * İstanbul(Ağva)-Kocaeli(Kandıra)-Sakarya(Kaynarca) Highway, Tunnel-1 (Kandıra-Yağcılar) (projected) – 2 x 870 m
 * Istanbul, Haliç Subsea Tunnel (projected) – 2 x 850 m
 * Konya Beltway, Seydişehir-Beyşehir, T3 Tunnel (projected) – 2 x 790 m
 * Trabzon Bypass Road, Gölçayır-2 Tunnel (projected) – 2 x 744 m
 * Hakkari-Ördekli Tunnels, T4 (projected) – 1 x 730 m
 * Konya Beltway, Sille-İmar1, T4 Tunnel (projected) – 2 x 720 m
 * Konya Beltway, Çayırbağ-Seydişehir, T1 Tunnel (projected) – 2 x 705 m
 * Giresun Ring Road, Gülyalı-Keşap T1 Tunnel (projected) – 2 x 670 m
 * Rize, Hemşin-Çamlıhemşin T3 Tunnel (projected) – 1 x 662 m
 * Antalya(Gazipaşa)-Karaman(Ermenek), Şahinler Tunnel (projected) – 1 x 640 m
 * Antalya, Manavgat-Akseki, Kızıldağ (T2) Tunnel (projected) – 2 x 620 m
 * Fatsa Beltway, T7 Tunnel (projected) – 2 x 590 m
 * Bolu(Mudurnu)-Sakarya(Akyazı), Topçamlığı (T3) Tunnel (projected) – 2 x 500 m
 * Gümüşhane(Kürtün)-Trabzon(Tonya), T3 Tunnel (projected) – 1 x 480 m
 * Hakkari-Ördekli Tunnels, T2 (projected) – 1 x 480 m
 * Gümüşhane-Kelkit, Pirahmet Tunnel (projected) – 2 x 463 m
 * Balıkesir(Bigadiç)-Kütahya(Simav), Demirci-Düvertepe Tunnels, T5 Tunnel (projected) – 2 x 459 m
 * Hakkari-Ördekli Tunnels, T3 (projected) – 1 x 450 m
 * Trabzon Bypass Road, Gölçayır-1 Tunnel (projected) – 2 x 436 m
 * Antalya, Demre-Kaş, Cut-Cover (Hoyran) Tunnel (projected) – 2 x 400 m
 * Bolu(Mudurnu)-Sakarya(Akyazı), Tavşansuyu (T6) Tunnel (projected) – 2 x 395 m
 * Giresun Ring Road, Gülyalı-Keşap T12 Tunnel (projected) – 2 x 388 m
 * Kayseri, Şehit Tümgeneral Aydoğan Aydın Tunnel (projected) – 2 x 375 m
 * Ardahan(Posof), Binbaşı Eminbey Cut-Cover Tunnel (projected) – 2 x 350 m
 * Gümüşhane(Kürtün)-Trabzon(Tonya), T1 Tunnel (projected) – 1 x 300 m
 * Gümüşhane(Kürtün)-Trabzon(Tonya), T2 Tunnel (projected) – 1 x 260 m
 * Rize, Hemşin-Çamlıhemşin T2 Tunnel (projected) – 1 x 260 m
 * Antalya, Kaş-Kalkan, Çukurbağ Tunnel (projected) – 2 x 250 m
 * Trabzon Bypass Road, Çukurçayır-2 Tunnel (projected) – 2 x 219 m
 * Bolu(Mudurnu)-Sakarya(Akyazı), Allıbelen (T1) Tunnel (projected) – 2 x 200 m
 * Fatsa Beltway, T4 Tunnel (projected) – 2 x 190 m
 * Fatsa Beltway, T6 Tunnel (projected) – 2 x 190 m
 * Rize, Hemşin-Çamlıhemşin T1 Tunnel (projected) – 1 x 190 m
 * Balıkesir, İvrindi-Havran, Evciler Tunnel (projected) – 2 x 171 m
 * Hatay, Dörtyol-Hassa, Amanos T3 Tunnel (projected) – 2 x 150 m
 * Giresun Ring Road, Gülyalı-Keşap T10 Tunnel (projected) – 2 x 90 m
 * Bolu(Mudurnu)-Sakarya(Akyazı), Mudurnu-Akyazı Cut-Cover Tunnel (projected) – 2 x 57 m

Inactive road tunnels

 * Antalya-Beldibi, Akyarlar Tunnel (inactive) – 1 x 900 m
 * İstanbul, Beylerbeyi Palace Tunnel (inactive) – 1 x 150 m
 * Antalya-Beldibi, Çamdağ Tunnel (inactive) – 1 x 130 m

Road-rail tunnels

 * Great Istanbul Tunnel, Bosphorus Subsea Three Layered Tunnel (projected) – 3 x 4,300 m
 * İzmir Ring Road, İZKARAY Subsea Road-Rail Tunnel (projected) – 3 x 1,797 m

Road tunnels in Northern Cyprus

 * Northern Cyprus, Değirmenlik-Girne, Beşparmak Motorway Tunnel (projected) – 2 x 7,000 m
 * Northern Cyprus, Değirmenlik-Girne, Beşparmak Ridgeway Tunnel (projected) – 2 x 5,000 m
 * Northern Cyprus, Ercan-Akıncılar Tunnel – 2 x 500 m

Motorway tunnels

 * KMO 5. Section, Kocaeli T2 Motorway Tunnel – 2 x 4,159 m
 * İstanbul Habibler-Hasdal, Cebeci Motorway Tunnel – 2 x 4,005 m
 * Bursa-Yalova, Orhangazi (Samanlı) Motorway Tunnel – 2 x 3,591 m
 * Bolu-Düzce(Kaynaşlı), Mount Bolu Motorway Tunnel – 2 x 3,125 m
 * İzmir(Belevi)-Aydın(Germencik), Selatin Motorway Tunnel – 2 x 3,043 m
 * Osmaniye(Bahçe), Kızlaç Motorway Tunnel – 2 x 2,860 m
 * KMO 5. Section, Kocaeli T4 Motorway Tunnel - 2 x 2,150 m
 * İstanbul, Çatalca-1 Motorway Tunnel - 2 x 2,145 m
 * İzmir, Bayraklı-2 Motorway Tunnel – 2 x 1,876 m
 * İzmir, Belkahve Motorway Tunnel – 2 x 1,653 m
 * KMO 5. Section, Kocaeli T5 Motorway Tunnel – 2 x 1,475 m
 * KMO 5. Section, Kocaeli T1 Motorway Tunnel – 2 x 1,405 m
 * Bursa, Selçukgazi Motorway Tunnel – 2 x 1,303 m
 * Gaziantep(Nurdağı), Aslanlı Motorway Tunnel – 2 x 1,230 m
 * Kocaeli, Korutepe Motorway Tunnel – 2 x 1,088 m
 * Niğde-Adana, Kırkgeçit-1 Motorway Tunnel – 2 x 958 m
 * İzmir, Menemen-Çandarlı, Buruncuk Motorway Tunnel – 2 x 946 m
 * Niğde-Adana, Kırkgeçit-6 Motorway Tunnel – 2 x 855 m
 * İstanbul, Riva Motorway Tunnel – 2 x 782 m
 * İstanbul, Çamlık Motorway Tunnel – 2 x 653 m
 * Niğde-Adana, Kırkgeçit-5 Motorway Tunnel – 2 x 652 m
 * Kocaeli, Gültepe Motorway Tunnel – 2 x 639 m
 * Niğde-Adana, Kırkgeçit-4 Motorway Tunnel – 2 x 630 m
 * Osmaniye(Bahçe), Ayran Motorway Tunnel – 2 x 596 m
 * İstanbul, Çatalca-2 Motorway Tunnel – 2 x 593 m
 * Niğde-Adana, Kırkgeçit-2 Motorway Tunnel - 2 x 584 m
 * Niğde-Adana, Kırkgeçit-7 Motorway Tunnel – 2 x 534 m
 * Bursa(Gürsu), İğdir Motorway Tunnel – 2 x 518 m
 * Adana(Pozantı), Çakıt Motorway Tunnel – 2 x 497 m
 * Kocaeli, İzmit West Motorway Tunnel – 2 x 435 m
 * Osmaniye(Bahçe), Taşoluk Motorway Tunnel – 2 x 376 m
 * KMO 5. Section, Kocaeli T3 Motorway Tunnel – 2 x 371 m
 * İzmir, Bayraklı-1 Motorway Tunnel – 2 x 320 m
 * İstanbul, Harp Akademileri Motorway Tunnel – 2 x 315 m
 * Adana, Fehmi Özeltürkay (Mahfesığmaz) Cut-Cover Motorway Tunnel – 2 x 300 m
 * Niğde-Adana, Kırkgeçit-3 Motorway Tunnel – 2 x 286 m
 * Kocaeli, Hereke Motorway Tunnel – 2 x 285 m
 * Kocaeli, Diliskelesi (Dilovası/Dilderesi) Motorway Tunnel – 2 x 220 m
 * Adana, Gülek Motorway Tunnel – 2 x 200 m
 * Hatay, İskenderun Motorway Tunnel – 2 x 200 m

Motorway tunnels (projected)

 * Yalova-İzmit Motorway, Yalova-Elmalık, T1 Motorway Tunnel (projected) – 2 x 942 m
 * Yalova-İzmit Motorway, Yalova-Elmalık, T2 Motorway Tunnel (projected) – 2 x 1,045 m
 * Yalova-İzmit Motorway, Çukurköy-Gölcük, T1 Motorway Tunnel (projected) – 2 x 480 m
 * Yalova-İzmit Motorway, Çukurköy-Gölcük, T2 Motorway Tunnel (projected) – 2 x 880 m
 * Yalova-İzmit Motorway, Çukurköy-Gölcük, T3 Motorway Tunnel (projected) – 2 x 1,560 m
 * Yalova-İzmit Motorway, Çukurköy-Gölcük, T4 Motorway Tunnel (projected) – 2 x 3,730 m
 * Yalova-İzmit Motorway, Gölcük-Bahçecik, T5 Motorway Tunnel (projected) – 2 x 830 m
 * Yalova-İzmit Motorway, Bahçecik-Karatepe, T6 Motorway Tunnel (projected) – 2 x 3,155 m
 * Kınalı-Balıkesir Motorway, Çorlu Cut-Cover T1 Motorway Tunnel (projected) – 2 x 500 m
 * Kınalı-Balıkesir Motorway, Tekirdağ-Malkara, T2 Cut-Cover Motorway Tunnel (projected) – 2 x 500 m
 * Kınalı-Balıkesir Motorway, Tekirdağ-Malkara, T1 Motorway Tunnel (projected) – 2 x 1,038 m
 * Kınalı-Balıkesir Motorway, Lapseki-Çan, T2 Motorway Tunnel (projected) – 2 x 895 m
 * Kınalı-Balıkesir Motorway, Lapseki-Çan, T3 Motorway Tunnel (projected) – 2 x 1,830 m
 * Kınalı-Balıkesir Motorway, Çan-Yenice, T4 Motorway Tunnel (projected)– - 2 x 990 m
 * Kınalı-Balıkesir Motorway, Yenice-Balya, T5 Motorway Tunnel (projected) – 2 x 2,045 m
 * Ankara-Samsun Motorway, Elmadağ-Yahşihan, T1 Motorway Tunnel (projected) – 2 x 1,280 m
 * Ankara-Samsun Motorway, Elmadağ-Yahşihan, T2 Motorway Tunnel (projected) – 2 x 1,255 m
 * Ankara-Samsun Motorway, Elmadağ-Yahşihan, T3 Motorway Tunnel (projected) – 2 x 475 m
 * Ankara-Samsun Motorway, Elmadağ-Yahşihan, T4 Motorway Tunnel (projected) – 2 x 878 m
 * Ankara-Samsun Motorway, Merzifon-Havza, T5 Motorway Tunnel (projected) – 2 x 6,600 m
 * Ankara-Samsun Motorway, Merzifon-Havza, T6 Motorway Tunnel (projected) – 2 x 855 m
 * Ankara-Samsun Motorway, Havza-Samsun, T7 Motorway Tunnel (projected) – 2 x 2,965 m
 * Ankara-Samsun Motorway, Havza-Samsun, T8 Motorway Tunnel (projected) – 2 x 565 m
 * Ankara-Samsun Motorway, Havza-Samsun, T9 Motorway Tunnel (projected) – 2 x 1,935 m
 * Bafra-Samsun-Ünye Motorway, Bafra-Samsun, T1 Motorway Tunnel (projected) – 2 x 1,240 m
 * Bafra-Samsun-Ünye Motorway, Bafra-Samsun, T2 Motorway Tunnel (projected) – 2 x 3,540 m
 * Bafra-Samsun-Ünye Motorway, Bafra-Samsun, T3 Motorway Tunnel (projected) – 2 x 480 m
 * Bafra-Samsun-Ünye Motorway, Bafra-Samsun, T4 Motorway Tunnel (projected) – 2 x 1,600 m
 * Bafra-Samsun-Ünye Motorway, Bafra-Samsun, T5 Motorway Tunnel (projected) – 2 x 1,300 m
 * Bafra-Samsun-Ünye Motorway, Bafra-Samsun, T6 Motorway Tunnel (projected) – 2 x 1,000 m
 * Bafra-Samsun-Ünye Motorway, Bafra-Samsun, T7 Motorway Tunnel (projected) – 2 x 1,000 m
 * Bafra-Samsun-Ünye Motorway, Bafra-Samsun, T8 Motorway Tunnel (projected) – 2 x 1,320 m
 * Bafra-Samsun-Ünye Motorway, Bafra-Samsun, T9 Motorway Tunnel (projected) – 2 x 2,360 m
 * Bafra-Samsun-Ünye Motorway, Samsun-Ünye, T10 Motorway Tunnel (projected) – 2 x 440 m
 * Bafra-Samsun-Ünye Motorway, Samsun-Ünye, T11 Motorway Tunnel (projected) – 2 x 2,360 m
 * Bafra-Samsun-Ünye Motorway, Samsun-Ünye, T12 Motorway Tunnel (projected) – 2 x 4,400 m
 * Bafra-Samsun-Ünye Motorway, Samsun-Ünye, T13 Motorway Tunnel (projected) – 2 x 5,540 m
 * Bafra-Samsun-Ünye Motorway, Samsun-Ünye, T14 Motorway Tunnel (projected) – 2 x 440 m
 * Bafra-Samsun-Ünye Motorway, Samsun-Ünye, T15 Motorway Tunnel (projected) – 2 x 380 m
 * Bafra-Samsun-Ünye Motorway, Samsun-Ünye, T16 Motorway Tunnel (projected) – 2 x 1,320 m
 * Afyon-Antalya Motorway, BurdurNorth-BurdurSouth, T1 (Burdur) Motorway Tunnel (projected) – 2 x 1,615 m
 * Afyon-Antalya Motorway, BurdurNorth-BurdurSouth, T2 (MAKÜ) Motorway Tunnel (projected) – 2 x 1,585 m
 * Afyon-Antalya Motorway, Burdur-Bucak, T3 Motorway Tunnel (projected) – 2 x 2,000 m
 * Afyon-Antalya Motorway, Burdur-Bucak, T4 Motorway Tunnel (projected) – 2 x 865 m
 * Afyon-Antalya Motorway, Burdur-Bucak, T5 Motorway Tunnel (projected) – 2 x 580 m
 * Afyon-Antalya Motorway, Burdur-Bucak, T6 Motorway Tunnel (projected) – 2 x 1,145 m
 * Afyon-Antalya Motorway, Burdur-Bucak, T7 Motorway Tunnel (projected) – 2 x 1,930 m
 * Afyon-Antalya Motorway, Bucak-Antalya, T8 Motorway Tunnel (projected) – 2 x 1,185 m
 * Afyon-Antalya Motorway, Bucak-Antalya, T9 Motorway Tunnel (projected) – 2 x 310 m
 * Afyon-Antalya Motorway, Bucak-Antalya, T10 Motorway Tunnel (projected) – 2 x 1,855 m
 * Afyon-Antalya Motorway, Bucak-Antalya, T11 Motorway Tunnel (projected) – 2 x 400 m
 * Antalya-Alanya Motorway, Antalya-Taşağıl, T1 Motorway Tunnel (projected) – 2 x 1,070 m
 * Antalya-Alanya Motorway, Antalya-Taşağıl, T2 Motorway Tunnel (projected) – 2 x 1,680 m
 * Antalya-Alanya Motorway, Antalya-Taşağıl, T3 Motorway Tunnel (projected) – 2 x 1,080 m
 * Antalya-Alanya Motorway, Antalya-Taşağıl, T4 Motorway Tunnel (projected) – 2 x 2,220 m
 * Antalya-Alanya Motorway, Taşağıl-Manavgat, T5 Motorway Tunnel (projected) – 2 x 560 m
 * Antalya-Alanya Motorway, Manavgat T6 Motorway Tunnel (projected) – 2 x 875 m
 * Antalya-Alanya Motorway, Manavgat-Alarahan, T7 Motorway Tunnel (projected) – 2 x 805 m
 * Antalya-Alanya Motorway, Alarahan-Konaklı, T8 Motorway Tunnel (projected) – 2 x 2,965 m
 * Antalya-Alanya Motorway, Konaklı-Alanya, T9 Motorway Tunnel (projected) – 2 x 6,715 m
 * Antalya-Alanya Motorway, Konaklı-Alanya, T10 Motorway Tunnel (projected) – 2 x 4,440 m
 * Denizli-Burdur Motorway, Honaz-Çardak, T1 Motorway Tunnel (projected) – 2 x 770 m
 * Denizli-Burdur Motorway, Çardak-Burdur, T2 Motorway Tunnel (projected) – 2 x 4,385 m
 * Denizli-Burdur Motorway, Çardak-Burdur, T3 Motorway Tunnel (projected) – 2 x 3,115 m
 * Denizli-Burdur Motorway, Burdur-Bucak, T4 Motorway Tunnel (projected) – 2 x 2,220 m
 * Gerede-Gürbulak Motorway, Gerede-Merzifon Section, Gerede-Eskipazar, T1 Motorway Tunnel (projected) – 2 x 3,130 m
 * Gerede-Gürbulak Motorway, Gerede-Merzifon Section, Gerede-Eskipazar, T2 Motorway Tunnel (projected) – 2 x 260 m
 * Gerede-Gürbulak Motorway, Gerede-Merzifon Section, Eskipazar-Çerkeş, T3 Motorway Tunnel (projected) – 2 x 4,080 m
 * Gerede-Gürbulak Motorway, Gerede-Merzifon Section, Eskipazar-Çerkeş, T4 Motorway Tunnel (projected) – 2 x 345 m
 * Gerede-Gürbulak Motorway, Gerede-Merzifon Section, Kurşunlu-Ilgaz, T5 Motorway Tunnel (projected)– - 2 x 1,570 m
 * Gerede-Gürbulak Motorway, Gerede-Merzifon Section, Ilgaz-Tosya, T6 Motorway Tunnel (projected) – 2 x 140 m
 * Gerede-Gürbulak Motorway, Gerede-Merzifon Section, Ilgaz-Tosya, T7 Motorway Tunnel (projected) – 2 x 515 m
 * Gerede-Gürbulak Motorway, Gerede-Merzifon Section, Ilgaz-Tosya, T8 Motorway Tunnel (projected) – 2 x 1,205 m
 * Gerede-Gürbulak Motorway, Gerede-Merzifon Section, Ilgaz-Tosya, T9 Motorway Tunnel (projected) – 2 x 625 m
 * Gerede-Gürbulak Motorway, Gerede-Merzifon Section, Ilgaz-Tosya, T10 Motorway Tunnel (projected) – 2 x 370 m
 * Gerede-Gürbulak Motorway, Gerede-Merzifon Section, Kargı-Osmancık, T11 Motorway Tunnel (projected) – 2 x 1,000 m
 * Gerede-Gürbulak Motorway, Gerede-Merzifon Section, Kargı-Osmancık, T12 Motorway Tunnel (projected) – 2 x 940 m
 * Gerede-Gürbulak Motorway, Gerede-Merzifon Section, Kargı-Osmancık, T13 Motorway Tunnel (projected) – 2 x 650 m
 * Gerede-Gürbulak Motorway, Gerede-Merzifon Section, Kargı-Osmancık, T14 Motorway Tunnel (projected) – 2 x 325 m
 * Gerede-Gürbulak Motorway, Gerede-Merzifon Section, Kargı-Osmancık, T15 Motorway Tunnel (projected) – 2 x 915 m
 * Gerede-Gürbulak Motorway, Gerede-Merzifon Section, Kargı-Osmancık, T16 Motorway Tunnel (projected) – 2 x 5,450 m
 * Gerede-Gürbulak Motorway, Gerede-Merzifon Section, Kargı-Osmancık, T17 Motorway Tunnel (projected) – 2 x 2,805 m
 * Gerede-Gürbulak Motorway, Gerede-Merzifon Section, Kargı-Osmancık, T18 Motorway Tunnel (projected) – 2 x 465 m
 * Gerede-Gürbulak Motorway, Gerede-Merzifon Section, Kargı-Osmancık, T19 Motorway Tunnel (projected) – 2 x 870 m
 * Gerede-Gürbulak Motorway, Gerede-Merzifon Section, Kargı-Osmancık, T20 Motorway Tunnel (projected) – 2 x 855 m
 * Gerede-Gürbulak Motorway, Gerede-Merzifon Section, Kargı-Osmancık, T21 Motorway Tunnel (projected) – 2 x 3,795 m
 * Gerede-Gürbulak Motorway, Gerede-Merzifon Section, Kargı-Osmancık, T22 Motorway Tunnel (projected) – 2 x 2,515 m
 * Gerede-Gürbulak Motorway, Gerede-Merzifon Section, Kargı-Osmancık, T23 Motorway Tunnel (projected) – 2 x 4,035 m
 * Gerede-Gürbulak Motorway, Merzifon-Koyulhisar Section, Amasya T1 Motorway Tunnel (projected) – 2 x 472 m
 * Gerede-Gürbulak Motorway, Merzifon-Koyulhisar Section, Amasya T2 Motorway Tunnel (projected) – 2 x 3,091 m
 * Gerede-Gürbulak Motorway, Merzifon-Koyulhisar Section, Amasya T3 Motorway Tunnel (projected) – 2 x 730 m
 * Gerede-Gürbulak Motorway, Merzifon-Koyulhisar Section, Amasya T4 Motorway Tunnel (projected) – 2 x 304 m
 * Gerede-Gürbulak Motorway, Merzifon-Koyulhisar Section, Amasya T5 Motorway Tunnel (projected) – 2 x 1,281 m
 * Gerede-Gürbulak Motorway, Merzifon-Koyulhisar Section, Turhal T6 Motorway Tunnel (projected) – 2 x 1,221 m
 * Gerede-Gürbulak Motorway, Merzifon-Koyulhisar Section, Turhal T7 Motorway Tunnel (projected) – 2 x 1,202 m
 * Gerede-Gürbulak Motorway, Merzifon-Koyulhisar Section, Turhal T8 Motorway Tunnel (projected) – 2 x 2,500 m
 * Gerede-Gürbulak Motorway, Merzifon-Koyulhisar Section, Turhal T9 Motorway Tunnel (projected) – 2 x 368 m
 * Gerede-Gürbulak Motorway, Merzifon-Koyulhisar Section, Turhal T10 Motorway Tunnel (projected) – 2 x 2,113 m
 * Gerede-Gürbulak Motorway, Merzifon-Koyulhisar Section, Turhal T11 Motorway Tunnel (projected) – 2 x 3,710 m
 * Gerede-Gürbulak Motorway, Merzifon-Koyulhisar Section, Tokat T12 Motorway Tunnel (projected) – 2 x 3,217 m
 * Gerede-Gürbulak Motorway, Merzifon-Koyulhisar Section, Tokat T13 Motorway Tunnel (projected) – 2 x 1,036 m
 * Gerede-Gürbulak Motorway, Merzifon-Koyulhisar Section, Tokat T14 Motorway Tunnel (projected) – 2 x 5,525 m
 * Gerede-Gürbulak Motorway, Merzifon-Koyulhisar Section, Almus T15 Motorway Tunnel (projected) – 2 x 3,160 m
 * Gerede-Gürbulak Motorway, Merzifon-Koyulhisar Section, Almus T16 Motorway Tunnel (projected) – 2 x 2,119 m
 * Gerede-Gürbulak Motorway, Merzifon-Koyulhisar Section, Almus T17 Motorway Tunnel (projected) – 2 x 2,697 m
 * Gerede-Gürbulak Motorway, Merzifon-Koyulhisar Section, Almus T18 Motorway Tunnel (projected) – 2 x 4,048 m
 * Gerede-Gürbulak Motorway, Merzifon-Koyulhisar Section, Reşadiye T19 Motorway Tunnel (projected) – 2 x 799 m
 * Gerede-Gürbulak Motorway, Merzifon-Koyulhisar Section, Reşadiye T20 Motorway Tunnel (projected) – 2 x 473 m
 * Gerede-Gürbulak Motorway, Merzifon-Koyulhisar Section, Reşadiye T21 Motorway Tunnel (projected) – 2 x 363 m
 * Gerede-Gürbulak Motorway, Merzifon-Koyulhisar Section, Reşadiye T22 Motorway Tunnel (projected) – 2 x 762 m
 * Gerede-Gürbulak Motorway, Merzifon-Koyulhisar Section, Reşadiye T23 Motorway Tunnel (projected) – 2 x 323 m
 * Gerede-Gürbulak Motorway, Merzifon-Koyulhisar Section, Reşadiye T24 Motorway Tunnel (projected) – 2 x 344 m
 * Gerede-Gürbulak Motorway, Merzifon-Koyulhisar Section, Doğanşar T25 Motorway Tunnel (projected) – 2 x 7,788 m
 * Gerede-Gürbulak Motorway, Merzifon-Koyulhisar Section, Koyulhisar T26 Motorway Tunnel (projected) – 2 x 1,520 m
 * Gerede-Gürbulak Motorway, Merzifon-Koyulhisar Section, Koyulhisar T27 Motorway Tunnel (projected) – 2 x 849 m
 * Gerede-Gürbulak Motorway, Merzifon-Koyulhisar Section, Koyulhisar T28 Motorway Tunnel (projected) – 2 x 706 m
 * Gerede-Gürbulak Motorway, Merzifon-Koyulhisar Section, Koyulhisar T29 Motorway Tunnel (projected) – 2 x 849 m
 * Gerede-Gürbulak Motorway, Merzifon-Koyulhisar Section, Koyulhisar T30 Motorway Tunnel (projected) – 2 x 1,583 m
 * Gerede-Gürbulak Motorway, Koyulhisar-Pülümür Section, Koyulhisar-Suşehri, T1 Motorway Tunnel (projected) – 2 x 2,750 m
 * Gerede-Gürbulak Motorway, Koyulhisar-Pülümür Section, Koyulhisar-Suşehri, T2 Motorway Tunnel (projected) – 2 x 4,550 m
 * Gerede-Gürbulak Motorway, Koyulhisar-Pülümür Section, Koyulhisar-Suşehri, T3 Motorway Tunnel (projected) – 2 x 8,000 m
 * Gerede-Gürbulak Motorway, Koyulhisar-Pülümür Section, Gölova-Sivas, T4 Motorway Tunnel (projected) – 2 x 1,600 m
 * Gerede-Gürbulak Motorway, Koyulhisar-Pülümür Section, Gölova-Sivas, T5 Motorway Tunnel (projected) – 2 x 4,300 m
 * Gerede-Gürbulak Motorway, Koyulhisar-Pülümür Section, Sivas-Refahiye, T6 Motorway Tunnel (projected) – 2 x 4,900 m
 * Gerede-Gürbulak Motorway, Koyulhisar-Pülümür Section, Refahiye-Kemah, T7 Motorway Tunnel (projected) – 2 x 2,100 m
 * Gerede-Gürbulak Motorway, Koyulhisar-Pülümür Section, Refahiye-Kemah, T8 Motorway Tunnel (projected) – 2 x 2,350 m
 * Gerede-Gürbulak Motorway, Koyulhisar-Pülümür Section, Refahiye-Kemah, T9 Motorway Tunnel (projected) – 2 x 3,100 m
 * Gerede-Gürbulak Motorway, Koyulhisar-Pülümür Section, Refahiye-Kemah, T10 Motorway Tunnel (projected) – 2 x 4,250 m
 * Gerede-Gürbulak Motorway, Koyulhisar-Pülümür Section, Refahiye-Kemah, T11 Motorway Tunnel (projected) – 2 x 450 m
 * Gerede-Gürbulak Motorway, Koyulhisar-Pülümür Section, Refahiye-Kemah, T12 Motorway Tunnel (projected) – 2 x 4,200 m
 * Gerede-Gürbulak Motorway, Koyulhisar-Pülümür Section, Refahiye-Kemah, T13 Motorway Tunnel (projected) – 2 x 6,350 m
 * Gerede-Gürbulak Motorway, Koyulhisar-Pülümür Section, Kemah-Erzincan, T14 Motorway Tunnel (projected) – 2 x 1,000 m
 * Gerede-Gürbulak Motorway, Koyulhisar-Pülümür Section, Kemah-Erzincan, T15 Motorway Tunnel (projected) – 2 x 250 m
 * Gerede-Gürbulak Motorway, Koyulhisar-Pülümür Section, Kemah-Erzincan, T16 Motorway Tunnel (projected) – 2 x 800 m
 * Gerede-Gürbulak Motorway, Koyulhisar-Pülümür Section, Kemah-Erzincan, T17 Motorway Tunnel (projected) – 2 x 750 m
 * Gerede-Gürbulak Motorway, Koyulhisar-Pülümür Section, Kemah-Erzincan, T18 Motorway Tunnel (projected) – 2 x 400 m
 * Gerede-Gürbulak Motorway, Koyulhisar-Pülümür Section, Kemah-Erzincan, T19 Motorway Tunnel (projected) – 2 x 600 m
 * Gerede-Gürbulak Motorway, Koyulhisar-Pülümür Section, Kemah-Erzincan, T20 Motorway Tunnel (projected) – 2 x 200 m
 * Gerede-Gürbulak Motorway, Koyulhisar-Pülümür Section, Kemah-Erzincan, T21 Motorway Tunnel (projected) – 2 x 500 m
 * Gerede-Gürbulak Motorway, Koyulhisar-Pülümür Section, Kemah-Erzincan, T22 Motorway Tunnel (projected) – 2 x 5,710 m
 * Gerede-Gürbulak Motorway, Koyulhisar-Pülümür Section, Erzincan-Pülümür, T23 Motorway Tunnel (projected) – 2 x 7,960 m
 * Gerede-Gürbulak Motorway, Koyulhisar-Pülümür Section, Erzincan-Pülümür, T24 Motorway Tunnel (projected) – 2 x 5,600 m
 * Gerede-Gürbulak Motorway, Koyulhisar-Pülümür Section, Erzincan-Pülümür, T25 Motorway Tunnel (projected) – 2 x 3,020 m
 * Gerede-Gürbulak Motorway, Pülümür-Horasan Section, Pülümür-Kargın, T1 Motorway Tunnel (projected) – 2 x 4,500 m
 * Gerede-Gürbulak Motorway, Pülümür-Horasan Section, Tercan-Aşkale, T2 Motorway Tunnel (projected) – 2 x 4,000 m
 * Gerede-Gürbulak Motorway, Pülümür-Horasan Section, Tercan-Aşkale, T3 Motorway Tunnel (projected) – 2 x 1,750 m
 * Gerede-Gürbulak Motorway, Pülümür-Horasan Section, Tercan-Aşkale, T4 Motorway Tunnel (projected) – 2 x 4,400 m
 * Gerede-Gürbulak Motorway, Pülümür-Horasan Section, Tercan-Aşkale, T5 Motorway Tunnel (projected) – 2 x 2,600 m
 * Gerede-Gürbulak Motorway, Pülümür-Horasan Section, Tercan-Aşkale, T6 Motorway Tunnel (projected) – 2 x 1,500 m
 * Gerede-Gürbulak Motorway, Pülümür-Horasan Section, Tercan-Aşkale, T7 Motorway Tunnel (projected) – 2 x 1,450 m
 * Gerede-Gürbulak Motorway, Pülümür-Horasan Section, Tercan-Aşkale, T8 Motorway Tunnel (projected) – 2 x 5,350 m
 * Gerede-Gürbulak Motorway, Pülümür-Horasan Section, Erzurum-Pasinler, T9 Motorway Tunnel (projected) – 2 x 5,700 m
 * Gerede-Gürbulak Motorway, Horasan-Gürbulak Section, Horasan-Eleşkirt, T1 Motorway Tunnel (projected) – 2 x 1,600 m
 * Ankara-İzmir Motorway, Sivrihisar T1 Motorway Tunnel (projected)– - 2 x 2,929 m
 * Ankara-İzmir Motorway, Çifteler-Seyitgazi, T2 (Börüklü) Motorway Tunnel (projected) – 2 x 1,255
 * Ankara-İzmir Motorway, Seyitgazi-Altıntaş, T3 Motorway Tunnel (projected) – 2 x 1,061 m
 * Ankara-İzmir Motorway, Seyitgazi-Altıntaş, T4 Motorway Tunnel (projected) – 2 x 2,688 m
 * Ankara-İzmir Motorway, Dumlupınar-Banaz, T5 Motorway Tunnel (projected) – 2 x 3,757 m
 * Ankara-İzmir Motorway, Uşak-Kula, T6 Motorway Tunnel (projected) – 2 x 2,700 m
 * Ankara-İzmir Motorway, Uşak-Kula, T7 Motorway Tunnel (projected) – 2 x 1,728 m
 * Ankara-İzmir Motorway, Kula T8 Motorway Tunnel (projected) – 2 x 2,823 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 m
 * Şanlıurfa, Suruç Water Tunnel – 1 x 17,185 m
 * Blue Tunnel – 1 x 17,034 m
 * Northern Cyprus Water Tunnel (under construction) – 1 x 5,700 m
 * Bosporus Water Tunnel – 1 x 5,551 m
 * Gaziantep(Nurdağı), Belpınar Water Tunnel – 1 x 5,450 m