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. Opening year is given in parentheses.
Road tunnels
- Rize (İkizdere) - Erzurum (İspir), Ovit Tunnel – 2 x 14,346 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
- Bayburt (Aydıntepe) - Gümüşhane - Trabzon (Araklı), Salmankaş (Şehit Hamit Şahin) Tunnel – 2 x 4,150 m
- İzmir-Manisa, Sabuncubeli Tunnel – 2 x 4,085 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
- Kahramanmaraş-Göksun, Ahmet Eskalen (Göksun-T2) Tunnel – 2 x 2,895 m
- Trabzon, Maçka New Tunnel – 2 x 2,802 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
- Van (Gevaş) - Bitlis (Tatvan), Kuskunkıran (Kuzgunkıran) Tunnel – 2 x 2,306 m (2nd tube projected)
- Van, Bahçesaray-Çatak, Karabet Snow Tunnel – 1 x 2,300 m
- Artvin-Yusufeli, Oruçlu Ripage Tunnel – 1 x 2,277 m
- Giresun-Tirebolu, Tirebolu Volunteer 42nd Regiment Tunnels, Tirebolu Variant-1 (T1) Tunnel – 2 x 2,175 m
- Çankırı (Çerkeş) - Ankara (Kızılcahamam), Kızılcahamam Tunnel – 1 x 2,070 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
- 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 1,629 m
- İstanbul, Kağıthane-Piyalepaşa Tunnel – 2 x 1,625 m
- Malatya, Akçadağ-Darende, Karahan 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
- Bartın, Çakraz-Kurucaşile, Cumayanı (T2) Tunnel – 2 x 1,529 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
- Rize (Çayeli) - Artvin (Pazar), Çayeli Tunnel – 2 x 1,392 m
- Artvin, Kemalpaşa-Hopa, Selimiye Tunnel – 1 x 1,366 m
- İstanbul, Kasımpaşa-Hasköy Tunnel – 2 x 1,316 m
- Trabzon-Maçka, Deliklitaş Tunnel – 2 x 1,306 m
- Ankara, Çayırhan-Nallıhan, Çayırhan Connection Tunnel – 2 x 1,293 m
- Sinop-Gerze, Çiftlik (Çiflikköy) Tunnel – 2 x 1,285 m
- Erzurum (İspir) - Artvin (Yusufeli), T2 (Arkun) Tunnel – 1 x 1,275 m
- Gümüşhane (Kürtün) - Giresun (Doğankent), Elceğiz Tunnel – 1 x 1,265 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, Bozyazı-Aydıncık, Gözce-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-Taşova, Akdağ Tunnel – 1 x 875 m
- Rize, İyidere-Derepazarı, Sarayköy-2 Tunnel – 2 x 856 m
- Bilecik-Vezirhan, Ertuğrulgazi (Kaletepe) Tunnel – 2 x 840 m
- Mersin, Silifke-Aydıncık, Büyükeceli T2 Tunnel – 2 x 836 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
- İstanbul, Taksim Square Cut-Cover Tunnel – 2 x 800 m
- Artvin-Yusufeli, Şehirler-1 Tunnel – 1 x 800 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
- 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
- Artvin, Hopa-Kemalpaşa, Esenkıyı Tunnel – 1 x 638 m
- Malatya, Hekimhan-Yazıhan, Çebiş (Hekimhan/Çepiç) Tunnel - 2 x 630 m
- Zonguldak-Devrek, Üzülmez (Asma) Tunnel – 2 x 630 m
- Ordu, Altınordu (Uzunisa-Gümüşköy), T2 (Gümüşköy) Tunnel - 1 x 620 m
- Bursa (İnegöl) - Bilecik (Bozüyük), Mezit Tunnel – 1 x 606 m
- Erzurum (İspir) - Artvin (Yusufeli), Güllübağ Tunnel – 1 x 605 m
- Artvin-Yusufeli, İşhan-3 Tunnel - 1 x 600 m
- Burdur (Bucak) - Antalya (Aksu), Kargı Tunnel – 1 x 580 m
- Erzurum (İspir) - Rize (İkizdere), Özbağ-1 Tunnel – 2 x 576 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
- Artvin, Kemalpaşa-Hopa, Liman Tunnel – 1 x 546 m
- Mersin (Anamur) - Antalya (Gazipaşa), Anamur-T1 Tunnel – 2 x 537 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 508 m
- Mersin (Anamur) - Antalya (Gazipaşa), Anamur-T2 Tunnel – 2 x 501 m
- Elazığ, Maden-Sivrice, Maden Tunnel – 1 x 486 m
- Hakkari, Yüksekova-Esendere, Sarıtaş Tunnel – 1 x 460 m
- Karaman, Ermenek-Görmeli, Ermenek Tunnel – 1 x 457 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
- 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
- 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, Bozyazı-Aydıncık, Gözce-T5 Tunnel – 2 x 385 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
- Zonguldak, Kilimli, Aslankayası (Kilimli-Uzunkum) 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
- 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
- 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
- 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
- Ordu, Altınordu (Uzunisa-Gümüşköy), T5 (Kuylu) Tunnel – 1 x 300 m
- Karabük-Yenice National Road, Şahinkayası Tunnel – 1 x 298 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
- Giresun-Dereli, Iklıkçı Tunnel – 1 x 252 m
- Malatya, Hekimhan-Yazıhan, Sarsap (Karaca) Tunnel – 2 x 250 m
- Kocaeli, Başiskele-Gölcük, Bahçecik Cut-Cover Tunnel – 2 x 250 m
- Karaman (Taşkent) - Antalya (Alanya), Çayarası-2 Tunnel – 1 x 247 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
- 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
- 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)
- Trabzon(Maçka)-Gümüşhane(Torul), New Zigana Tunnel (under construction) – 2 x 14,481 m
- 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 7,200 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
- Giresun, Dereli-Şebinkarahisar, Eğribel Tunnel (under construction) – 2 x 5,910 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
- Antalya(İbradı)-Konya(Derebucak), Demirkapı Tunnel (under construction) – 2 x 4,990 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
- 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
- Çanakkale, Ayvacık-Küçükkuyu, T2 Tunnel (under construction) – 2 x 4,017 m
- İstanbul, Dolmabahçe-Levazım Tunnel (under construction) – 2 x 3,900 m
- Kastamonu, Küre-Seydiler, 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 3,100 m
- Rize Ring Road, Salarha Tunnel (under construction) – 2 x 2,900 m
- Kastamonu, Küre-Seydiler, T1 Tunnel (under construction) – 2 x 2,696 m
- Çanakkale, Eceabat-Gelibolu, T1 (Akbaş) Tunnel (under construction) – 1 x 2,560 m
- Çanakkale, Eceabat-Gelibolu, T5 (Ilgardere) Tunnel (under construction) – 1 x 2,558 m
- İzmir, Buca-Bornova (Onat) Tunnel (under construction) – 2 x 2,543 m
- Denizli, Honaz Tunnel (under construction) – 2 x 2,540 m
- Erzurum(Uzundere)-Artvin(Yusufeli), Pirinkayalar (Lake Tortum) Tunnel (under construction) – 1 x 2,380 m
- Bartın, Çakraz-Kurucaşile, Dizlermezeci (T3) Tunnel (under construction) – 2 x 2,319 m
- Ardahan, Çıldır-Aktaş, Aşık Şenlik (Mozeret) Tunnel (under construction) – 2 x 2,300 m
- Antalya-Burdur, Çubukbeli (Çubuk) Tunnel (under construction) – 2 x 2,200 m
- Kastamonu, İnebolu-Küre, T3 Tunnel (under construction) – 2 x 2,060 m
- Bursa-Orhaneli, Doğancı Variant Tunnel (under construction) – 1 x 2,038 m
- Ordu Ring Road, T2 Tunnel (under construction) – 2 x 1,740 m
- Çanakkale, Ayvacık-Küçükkuyu, T1 Tunnel (under construction) – 2 x 1,693 m
- Gümüşhane-Bayburt, Vauk T1 Tunnel (under construction) – 2 x 1,650 m
- Sivas, Ulaş-Kangal, Yağdonduran Tunnel (under construction) – 2 x 1,650 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
- Zonguldak-Kilimli, Mithatpaşa-2 (İkinci Makas) Tunnel (under construction) – 2 x 1,546 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
- Giresun-Dereli, Duroğlu Tunnel (under construction) – 2 x 1,350 m
- Bitlis, Tatvan Bypass Road, T1 Tunnel (under construction) – 2 x 1,311 m
- Antalya, Kemer-Kumluca, Phaselis (Alacasu) Tunnel (under construction) – 2 x 1,300 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
- Amasya(Gümüşhacıköy)-Çorum(Osmancık) Badal Tunnel (under construction) – 2 x 844 m
- Ordu Ring Road, T3 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
- Amasya Beltway, T1 Tunnel (under construction) – 2 x 720 m
- Trabzon Bypass Road, Boztepe Tunnel (under construction) – 2 x 675 m
- Antalya, Kemer-Kumluca, Sarıören Tunnel (under construction) - 2 x 670 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
- 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
- Malatya, Hekimhan-Yazıhan, Hasançelebi Variant T3 Tunnel (under construction) – 2 x 499 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
- Malatya, Hekimhan-Yazıhan, Hasançelebi Variant T1 Tunnel (under construction) – 2 x 440 m
- Ordu Ring Road, T1 Tunnel (under construction) – 2 x 440 m
- Amasya Beltway, T2 Tunnel (under construction) – 2 x 425 m
- Adapazarı, Karasu-Kaynarca, Karasu Tunnel (under construction) – 2 x 410 m
- Niğde Downtown Tunnel (under construction) – 1 x 370 m
- Malatya, Hekimhan-Yazıhan, Hasançelebi Variant T2 Tunnel (under construction) – 2 x 357 m
- İstanbul, Şile-Ağva T3 Tunnel (under construction) – 2 x 335 m
- Zonguldak-Kilimli, Mithatpaşa-1 (Bağlık) Tunnel (under construction) – 2 x 306 m
- Malatya, Hekimhan-Yazıhan, Hasançelebi Tunnel (under construction) – 2 x 297 m
- Amasya Beltway, Cut-Cover 1 Tunnel (under construction) – 2 x 294 m
- Amasya Beltway, Cut-Cover 2 Tunnel (under construction) – 1 x 280 m
- İstanbul, Şile-Ağva T4 Tunnel (under construction) – 2 x 267 m
- Gümüşhane, İkisu-Şiran, Aynalı Tunnel (under construction) – 1 x 252 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
- Zonguldak-Kilimli, Kapuz-Uzunkum Cut-Cover Tunnel (under construction) – 2 x 131 m
Road tunnels (projected)
- Ardahan-Artvin(Şavşat), Sahara Tunnel (projected) – 2 x 13,000 m
- Zonguldak Beltway, Gökgöl-Ilıksu Tunnel (projected) – 2 x 13,000 m
- Hatay, Dörtyol-Hassa, Amanos T4 Tunnel (projected) – 2 x 12,320 m
- Erzurum-Tekman, Palandöken Tunnel (projected) – 2 x 12,175 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
- İstanbul, Sarıyer-Kilyos Tunnel (projected) – 2 x 7,025 m
- Trabzon(Çaykara)-Bayburt, Soğanlı (Karaçam-Kılıçkaya) Tunnel (projected) – 2 x 6,800 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
- 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
- Ağrı(Doğubeyazıt)-Van(Çaldıran), Tendürek Tunnel (projected) – 2 x 5,500 m
- Kayseri(Tomarza)-Adana(Tufanbeyli), Dede Beli 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
- Fatsa Beltway, T1 Tunnel (projected) – 2 x 4,060 m
- Giresun, Dereli-Şebinkarahisar, Pınarlar Tunnel (projected) – 2 x 4,000 m
- Antalya, Manavgat-Akseki, Karpuzçay-1 Tunnel (projected) – 2 x 3,565 m
- Giresun Ring Road, Gülyalı-Keşap T13 Tunnel (projected) – 2 x 3,456 m
- Ardahan(Posof), Gümüşkavak Tunnel (projected) – 2 x 3,363 m
- İstanbul, Levazım-Akatlar Tunnel (projected) – 2 x 3,360 m
- Antalya(Akseki)-Konya(Seydişehir), Tınaztepe Tunnel (projected) – 2 x 3,300 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
- 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
- Giresun Ring Road, Gülyalı-Keşap T3 Tunnel (projected) – 2 x 2,164 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
- Giresun Ring Road, Gülyalı-Keşap T7 Tunnel (projected) – 2 x 1,672 m
- Antalya, Finike-Demre T2 Tunnel (projected) – 2 x 1,590 m
- Giresun Ring Road, Gülyalı-Keşap T17 Tunnel (projected) – 2 x 1,575 m
- Gümüşhane-Köse, Mount Köse Tunnel (projected) – 1 x 1,500 m
- Mersin(Tarsus)-Adana(Pozantı), Şehitler Tunnel (projected) – 1 x 1,500 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, Finike-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, Finike-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
- 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
- Giresun Ring Road, Gülyalı-Keşap T18 Tunnel (projected) – 2 x 970 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 750 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
- Fatsa Beltway, T7 Tunnel (projected) – 2 x 590 m
- Trabzon Bypass Road, Gölçayır-1 Tunnel (projected) – 2 x 500 m
- Gümüşhane-Kelkit, Pirahmet Tunnel (projected) – 2 x 463 m
- Trabzon Bypass Road, Çukurçayır-1 Tunnel (projected) – 2 x 400 m
- Giresun Ring Road, Gülyalı-Keşap T12 Tunnel (projected) – 2 x 388 m
- Trabzon Bypass Road, Çukurçayır-2 Tunnel (projected) – 2 x 300 m
- Fatsa Beltway, T4 Tunnel (projected) – 2 x 190 m
- Fatsa Beltway, T6 Tunnel (projected) – 2 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
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
- 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 (under construction)
- İstanbul Habibler-Hasdal, Cebeci Motorway Tunnel (under construction) – 2 x 3,362 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
- 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 830 m
- İskenderun-Antakya Motorway, Belen T2 Motorway Tunnel (projected) – 2 x 7,650 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