List of longest tunnels (English Wikipedia)

"ABB starts to make 'The London Connection'". ABB Group. 14 August 2004. Archived from the original on 5 March 2012. Retrieved 8 February 2009. a 20 km long three-metre diameter tunnel

alptransit.ch

"Project data – raw construction Gotthard Base Tunnel" (PDF). Lucerne, Switzerland: AlpTransit Gotthard Ltd. 1 June 2016. Archived (PDF) from the original on 11 March 2016. Retrieved 15 December 2016.

amel.gr

"Urban Rail Transport SA :METRO Line 1". Amel.gr. Archived from the original on 19 May 2012. Retrieved 1 February 2016.

ametro.gr

"ΚΑΤΑΣΚΕΥΗ ΤΗΣ ΝΕΑΣ ΓΡΑΜΜΗΣ 4 ΤΟΥ ΜΕΤΡΟ ΤΗΣ ΑΘΗΝΑΣ ΤΜΗΜΑ Α' «ΑΛΣΟΣ ΒΕΪΚΟΥ – ΓΟΥΔΗ» ΔΙΑΔΙΚΑΣΙΑ ΔΟΜΟΣΤΑΤΙΚΗΣ ΚΑΤΑΓΡΑΦΗΣ ΤΩΝ ΚΤΗΡΙΩΝ - ΚΑΤΑΣΚΕΥΩΝ ΣΤΗ ΖΩΝΗ ΕΠΙΡΡΟΗΣ ΤΟΥ ΕΡΓΟY" (PDF). 5 May 2023. Archived from the original (PDF) on 21 September 2022.

animalpolitico.com

"Tras 11 años de construcción, inauguran el Túnel Emisor Oriente". 23 December 2019. Archived from the original on 21 January 2022. Retrieved 22 January 2022.

archive.today

원주~제천 중앙선 복선전철 2011년 6월 착공 (in Korean). Yahoo!. 9 September 2010. Archived from the original on 26 May 2024. Retrieved 19 October 2010.
"Archived copy". Archived from the original on 21 July 2013. Retrieved 23 March 2014.{{cite web}}: CS1 maint: archived copy as title (link)

arpa-sevan.am

"1961-1981 the Complex of Hydraulic Works for Transfer of the Arpa and Yeghegis | Arpa Sevan". Archived from the original on 22 November 2021. Retrieved 21 January 2022.
"1968-1980 Construction of Tunnel No.2 and of Arpa-Sevan Conduit | Arpa Sevan". Archived from the original on 28 March 2022. Retrieved 21 January 2022.
"1995-2003 "Complex of Hydraulic Structures for Diversion of the Vorotan River Runoff to the Basin of the Arpa River" | Arpa Sevan". Archived from the original on 29 November 2018. Retrieved 21 January 2022.

asiaeconomy.co.kr

대우건설 솔안터널 관통식 (in Korean). Asia Economy. 7 December 2006. Archived from the original on 23 July 2012. Retrieved 6 October 2008.

banenor.no

"Follobanen – Bane NOR". Archived from the original on 25 July 2021. Retrieved 14 October 2020.

bankwatch.org

The Shuakhevi hydropower plant project, Georgia Archived 28 July 2014 at the Wayback Machine

bbt-se.com

"BBT SE". bbt-se.com. Archived from the original on 10 September 2011.
"Did you know …". BBT-SE.com. Archived from the original on 2 February 2016. Retrieved 1 February 2016.

bigbuild.vic.gov.au

"SRL East". Victoria's Big Build. 11 May 2022. Archived from the original on 27 February 2023. Retrieved 15 May 2022.

britannica.com

"Britannica Online Encyclopedia". Encyclopædia Britannica. Archived from the original on 25 February 2008.

bygg.no

"(+) Slik skal Rogfast ferdigstilles til planlagt tid". 18 March 2022. Archived from the original on 23 September 2023. Retrieved 19 February 2024.

byggteknikforlaget.se

"Förlängd byggtid och ökad kostnad för Förbifart Stockholm". 28 November 2019. Archived from the original on 1 February 2022. Retrieved 1 February 2022.

cern.ch

public.web.cern.ch

"The LHC, Facts and figures". CERN. 2008. Archived from the original on 16 July 2009. Retrieved 2 July 2009.

chiangmaicitylife.com

CityNews (30 June 2016). "5 Year Project to Bring More Water To Chiang Mai Through New Water Tunnels". Chiangmaicitylife.com. Archived from the original on 3 October 2016. Retrieved 12 July 2012.

china.com.cn

finance.china.com.cn

李连明谢崇志王瑞晨 (19 September 2013). "山西中南部铁路通道发鸠山隧道贯通". 中国网. Archived from the original on 10 May 2019. Retrieved 26 December 2022.

chinadaily.com.cn

孙汝. "Sichuan-Tibet Railway 'extremely challenging' project, expert says". China Daily. Archived from the original on 16 October 2021. Retrieved 16 October 2021.

climaxmolybdenum.com

"Climax Molybdenum – A Freeport-McMoRan Company". climaxmolybdenum.com. Archived from the original on 30 June 2014.

constructionenquirer.com

"Balfour and McAlpine chase £1.7bn York Potash job". Constructionenquirer.com. Archived from the original on 23 September 2015. Retrieved 1 February 2016.

cr18g.com

"中铁十八局集团中南部铁路通道太行山隧道建设纪实". Cr18g.com. 18 June 2012. Archived from the original on 20 January 2016. Retrieved 1 February 2016.

cse.co.kr

"Feasibility study and basic plan of Jungang Line for double track between Wonju and Jecheon". Chunsuk Engineering. Archived from the original on 22 July 2011. Retrieved 19 October 2010.

ctg.ha.cn

"Archived copy". Archived from the original on 21 July 2013. Retrieved 23 March 2014.{{cite web}}: CS1 maint: archived copy as title (link)

diamo.cz

slon.diamo.cz

Wagenbreth, Otfried (2002). "125 Jahre Rothschönberger Stolln" (in German). Archived from the original on 4 April 2023. Retrieved 26 December 2022.

doi.org

Zhenglu, Zhang; Zhentao, Yang; Shaquan, Xu; Xiangduo, Zhang (2000). "Precise leveling of the very long Qinling mountain tunnel". Geo-spatial Information Science. 3 (1): 57–61. Bibcode:2000GSIS....3...57Z. doi:10.1007/BF02826808.
Fu, Helin; Li, Jie; Li, Guoliang; Chen, Jingjun; An, Pengtao (1 June 2023). "Determination of In Situ Stress by Inversion in a Superlong Tunnel Site Based on the Variation Law of Stress — A Case Study". KSCE Journal of Civil Engineering. 27 (6): 2637–2653. Bibcode:2023KSJCE..27.2637F. doi:10.1007/s12205-023-0415-3. ISSN 1976-3808. S2CID 258273345. Archived from the original on 22 February 2024. Retrieved 17 November 2023.

epd.gov.hk

"Project Profile for Harbour Area Treatment Scheme (HATS) Stage 2A" (PDF). Government of Hong Kong. Archived (PDF) from the original on 3 January 2016. Retrieved 1 February 2016.

ereninsaatas.com

"Şanlıurfa Sulama Tünelleri ve Tesisleri İnşaatı" (in Turkish). Eren İnşaatı. Archived from the original on 10 July 2011. Retrieved 1 October 2010.

facebook.com

"Construction of the Ya'an-Nyingchi section of the Sichuan-Tibet Railway started--Seetao". Archived from the original on 22 February 2024. Retrieved 27 August 2023 – via Facebook.

gazettelive.co.uk

"York Potash: Construction 'could start this year' and what else you need to know". Gazettelive.co.uk. July 2015. Archived from the original on 24 September 2015. Retrieved 1 February 2016.

geplus.co.uk

Kajastie, Nia (13 December 2022). "Woodsmith tunnel and shafts making 'great progress' following reconfiguration". Ground Engineering (GE). Archived from the original on 30 October 2023. Retrieved 24 October 2023.
"Genoa-Milan high-speed railway marks double tunnel breakthrough". 28 September 2020. Archived from the original on 25 July 2023. Retrieved 25 July 2023.

gidrospetsproekt.ru

"Гидроспецпроект/Arpa-Sevan connecting tunnel". gidrospetsproekt.ru. Archived from the original on 6 November 2020. Retrieved 16 June 2019.
"Р"РёРґСЂРѕСЃРїРµС†РїСЂРѕРµРєС'/Dangarinsky Hydrotechnical tunnel in Tajikistan". Gidrospetsproekt.ru. Archived from the original on 1 July 2015. Retrieved 1 February 2016.

globalconstructionreview.com

"China preparing world's longest tunnel to divert Tibet river to desert". Global Construction Review. 31 October 2017. Archived from the original on 18 November 2021. Retrieved 18 November 2021.

gothamist.com

"NYC's Giant Water Tunnel Begins Work on Final Shafts, Following 50 Years of Construction". 22 April 2021. Archived from the original on 22 January 2022. Retrieved 22 January 2022.

gov.cn

"我国铁路第一长隧高黎贡山隧道进入全面施工阶段" [Gaoligongshan, the longest Tunnel of China, entering the comprehensive construction phase]. Gov.cn. Xinhua News Agency. 28 August 2017. Archived from the original on 3 September 2017. Retrieved 3 September 2017.

gov.hk

"GovHK: Harbour Area Treatment Scheme". Government of Hong Kong. 25 November 2015. Archived from the original on 30 December 2015. Retrieved 1 February 2016.

gov.uk

"HS2 Phase One full business case". GOV.UK. Archived from the original on 19 April 2020. Retrieved 24 October 2023.

grimseltunnel.ch

"Grimseltunnel - Projekt". grimseltunnel.ch. Archived from the original on 17 October 2020. Retrieved 17 October 2020.

haberler.com

"Yeni Zigana Tüneli İnşaatı Devam Ediyor". Haberler.com. 17 August 2016. Archived from the original on 16 June 2019. Retrieved 16 June 2019.

harvard.edu

ui.adsabs.harvard.edu

Zhenglu, Zhang; Zhentao, Yang; Shaquan, Xu; Xiangduo, Zhang (2000). "Precise leveling of the very long Qinling mountain tunnel". Geo-spatial Information Science. 3 (1): 57–61. Bibcode:2000GSIS....3...57Z. doi:10.1007/BF02826808.
Fu, Helin; Li, Jie; Li, Guoliang; Chen, Jingjun; An, Pengtao (1 June 2023). "Determination of In Situ Stress by Inversion in a Superlong Tunnel Site Based on the Variation Law of Stress — A Case Study". KSCE Journal of Civil Engineering. 27 (6): 2637–2653. Bibcode:2023KSJCE..27.2637F. doi:10.1007/s12205-023-0415-3. ISSN 1976-3808. S2CID 258273345. Archived from the original on 22 February 2024. Retrieved 17 November 2023.

hindustantimes.com

"NHSRCL opens tender for 21-km tunnel between BKC and Thane". 10 February 2023. Archived from the original on 19 February 2024. Retrieved 19 February 2024.
"Gadkari to initiate first blasting of all-weather Zojila Tunnel between Srinagar and Leh". 15 October 2020. Archived from the original on 21 January 2022. Retrieved 21 January 2022.

hs2.org.uk

"Chiltern Tunnel". High Speed 2. Archived from the original on 4 February 2022. Retrieved 4 February 2022.
"The HS2 Tunnel Boring Machines (TBMs)". High Speed 2. Archived from the original on 21 May 2021. Retrieved 21 May 2021.

hurriyet.com.tr

Kaçar, Muhammet (13 May 2012). "Başbakan Ovit Dağı Tüneli'nin temelini attı". Hürriyet Daily News (in Turkish). Archived from the original on 16 May 2012. Retrieved 13 May 2012.

ianvisits.co.uk

"HS2 starts digging 26 miles of tunnel under London". 6 October 2022. Archived from the original on 9 October 2022. Retrieved 4 July 2023.

indianexpress.com

"PM Modi inaugurates Zojila project in Leh: All you need to know about India's longest tunnel". The Indian Express. 19 May 2018. Archived from the original on 15 December 2019. Retrieved 16 June 2019.

indiatimes.com

timesofindia.indiatimes.com

"To be built at Rs 23,000 crore, Uttarakhand to get India's 'longest railway tunnel'". The Times of India. 30 August 2022. ISSN 0971-8257. Archived from the original on 3 May 2023. Retrieved 2 May 2023.

infoglobe.cz

en.infoglobe.cz

"Do You Know, That? – Railway Tunnels". En.infoglobe.cz. Archived from the original on 24 October 2021. Retrieved 1 February 2016.

ita-aites.org

"2010 – Activity Report – ITA-AITES". Ita-aites.org. Archived from the original on 19 June 2008. Retrieved 1 February 2016.
ita-aites.org https://web.archive.org/web/20090109051907/http://www.ita-aites.org/cms/fileadmin/filemounts/general/pdf/ItaAssociation/ProductAndPublication/OpenSession/OS_2006_4SKE-C.pdf. Archived from the original (PDF) on 9 January 2009. {{cite web}}: Missing or empty |title= (help)

awards.ita-aites.org

"Gaoligongshan Tunnel on Dali-Ruili Railway, The Longest Mountain Railway Tunnel in Asia" (PDF). Archived (PDF) from the original on 25 July 2023.

izmir.bel.tr

A.Ş, ÜNİBEL. "Haberler | Buca Metrosu'nun yapımı sürüyor". İzmir Büyükşehir Belediyesi. Archived from the original on 27 August 2023. Retrieved 27 August 2023.

japan-tunnel.org

"New Tunneling Technology in Japan / Statistical Data". Japan-tunnel.org. Archived from the original on 15 January 2016. Retrieved 1 February 2016.

kathmandupost.com

"Water from Melamchi finally arrives in Kathmandu". kathmandupost.com. Archived from the original on 2 February 2022. Retrieved 21 April 2021.

kettha.gov.my

"Laman Web Rasmi Kementerian Tenaga, Teknologi Hijau dan Air". Kettha.gov.my. Archived from the original on 24 July 2018. Retrieved 30 May 2016.

koreaherald.com

"Korea unveils new low-carbon bullet train". 4 January 2021.

kurier.at

"Inbetriebnahme des Brennerbasistunnels voraussichtlich erst 2032". 21 May 2021. Archived from the original on 6 April 2023. Retrieved 25 July 2023.

ledauphine.com

"France / Italie. Lyon-Turin : Les marchés du tunnel de base attribués". Archived from the original on 9 March 2022. Retrieved 22 January 2022.

lta.gov.sg

"Stages | Land Transport Authority". lta.gov.sg. Archived from the original on 3 July 2014. Retrieved 5 February 2022.
"LTA | Construction Commences on the Cross Island Line". Archived from the original on 19 January 2023. Retrieved 25 July 2023.

mavitunel.com

"Bağbaşı Barajı ve Mavi Tünel'i İnşaatı – Konya". Mavitunel.com. Archived from the original on 29 January 2016. Retrieved 1 February 2016.

metros.hu

"3-as metróvonal jellemzői". Metros.hu (in Hungarian). Archived from the original on 10 February 2024. Retrieved 27 March 2016.

mmsd.com

"Milwaukee Deep Tunnels". MMSD.com. 13 August 2020. Archived from the original on 6 June 2021. Retrieved 6 June 2021.

mwra.com

Massachusetts Water Resources Authority (December 2006). "Water System Master Plan" (PDF). pp. 7–26. Archived (PDF) from the original on 4 March 2016. Retrieved 7 July 2013.
Massachusetts Water Resources Authority (December 2006). "Water System Master Plan" (PDF). pp. 7–25. Archived (PDF) from the original on 4 March 2016. Retrieved 7 July 2013.
Massachusetts Water Resources Authority (December 2006). "Wastewater Master Plan" (PDF). pp. 3–5, 3–9. Archived (PDF) from the original on 8 August 2012. Retrieved 7 July 2013.

mwsip.lk

"About NCPCP". Mahaweli Water Security Investment Program. 1 November 2021. Archived from the original on 19 November 2021. Retrieved 11 November 2021.

naftemporiki.gr

"Μετρό-Γραμμή 4: Ξεκινούν τα έργα - Οι 15 σταθμοί από Γαλάτσι έως Γουδί - Έτοιμο σε 8 χρόνια". naftemporiki.gr (in Greek). 22 June 2021. Archived from the original on 20 May 2022. Retrieved 20 May 2022.

nationalgrid.com

"£200M London Connection Project is Commissioned" (PDF). National Grid plc. September 2005. Archived from the original (PDF) on 17 February 2010. Retrieved 8 February 2009. This 20 km long tunnel contains one of the longest 400 kV XLPE cable circuits to be installed in Europe.

nazret.com

"Ethiopia's Gilgel Gibe II hydropower plant resumes operation". nazret.com. Archived from the original on 6 October 2017. Retrieved 16 June 2019.

newcivilengineer.com

"Webuild JV snags another £1bn Sicily high speed rail construction deal". 8 June 2023.

nhsrcl.in

"NHSRCL Signs Contract for the Construction of 21 km Long Tunnel including India's First 7 Km long Undersea Rail Tunnel | NHSRCL". Archived from the original on 19 February 2024. Retrieved 19 February 2024.

nla.gov.au

trove.nla.gov.au

Spooner, William (8 July 1959), Eucumbene-tumut tunnel ready for service ahead of schedule, archived from the original on 15 May 2023, retrieved 16 June 2019

nrk.no

Akhtar, Syed Ali Shahbaz; Oftedahl, Cathrine; Morsund, Gunnar (20 November 2020). "Regjeringen klar for å gå videre med Rogfast" [The Government is Ready to Move Forward with Rogfast] (in Norwegian). NRK. Archived from the original on 24 August 2021. Retrieved 27 December 2020.

ntv.com.tr

"M8 Bostancı-Dudullu Metro Hattı'nın açılışı yapıldı (Yeni metro hattının durakları ve güzergahı)". Archived from the original on 21 January 2023. Retrieved 4 July 2023.

oebb.at

"ÖBB-Infrastruktur AG". oebb.at. Archived from the original on 30 November 2012.
"ÖBB Infrastruktur AG: 2014_01_10_Semmering-Basistunnel neu – Baustart des ersten Tunnelbauloses". oebb.at. Archived from the original on 23 February 2014. Retrieved 2 February 2022.

onemine.org

new.onemine.org

"Evinos-Mornos Tunnel – Greece Construction of a 30 km Long Hydraulic Tunnel in Less Than Three Years Under the Most Adverse Geological Conditions – Document Summary". new.onemine.org. Archived from the original on 13 December 2013.

orf.at

steiermark.orf.at

"Eröffnung der Koralmbahn verzögert sich bis 2026". 23 March 2018. Archived from the original on 10 April 2019. Retrieved 14 October 2020.

people.cn

en.people.cn

"Undersea rail tunnel plan complete – People's Daily Online". Archived from the original on 22 January 2022. Retrieved 22 January 2022.

philstar.com

Mercurio, Richmond (19 April 2022). "Metro Manila subway partial opening moved to 2025 – DOTr". The Philippine Star. Manila. Archived from the original on 19 April 2022. Retrieved 19 April 2022.

postimg.cc

"IMG 20230327 063939 969 — Postimages". Archived from the original on 27 March 2023. Retrieved 25 July 2023.

power-technology.com

"Futang, China". 7 December 2021. Archived from the original on 15 August 2022. Retrieved 21 January 2022.
"Shiziping, China". 16 December 2021. Archived from the original on 15 August 2022. Retrieved 21 January 2022.

powerhousemuseum.com

"Snowy! Power of a nation". Powerhousemuseum.com. Archived from the original on 3 March 2016. Retrieved 1 February 2016.

premier.vic.gov.au

"Works Start Today on Victoria's Suburban Rail Loop | Premier of Victoria". premier.vic.gov.au. Archived from the original on 1 June 2022. Retrieved 2 June 2022.

presse-oebb.at

"Geologische Störzone führt zu späterer Fertigstellung des Semmering-Basistunnels". Archived from the original on 28 January 2023. Retrieved 25 July 2023.

railjournal.com

"Korea opens Olympic high-speed line". Railjournal.com. 22 December 2017. Archived from the original on 16 June 2019. Retrieved 16 June 2019.

railpictures.net

"RailPictures.Net Photo: SPCC 41 Southern Peru Copper Corporation GE U23B at Toquepala, Peru by Jean-Marc Frybourg". Railpictures.net. Archived from the original on 8 October 2018. Retrieved 1 February 2016.

rappler.com

Ranada, Pia (18 April 2017). "Duterte, Abe may sign Mega Manila subway deal in November". Rappler. Archived from the original on 19 April 2017. Retrieved 19 April 2017.

regjeringen.no

Samferdselsdepartementet (20 June 2014). "Follobanen – Nordens lengste jernbanetunnel: Samferdselsministeren fyrte av første salve". Regjeringen.no. Archived from the original on 20 December 2016. Retrieved 16 June 2019.

researchgate.net

"Plan view of Kemano T1 and T2 tunnels (Morgenroth, 2016). | Download Scientific Diagram". Archived from the original on 28 March 2023. Retrieved 28 March 2023.

riotinto.com

"Rio Tinto completes Kemano hydropower project". riotinto.com. Archived from the original on 28 March 2023. Retrieved 28 March 2023.

robbinstbm.com

"Dahuofang Water Tunnel | The Robbins Company". Robbinstbm.com. Archived from the original on 22 March 2012. Retrieved 1 February 2016.
"Gerede Water Transmission Tunnel". Robbins. Archived from the original on 1 February 2022. Retrieved 1 February 2022.

rushydro.ru

lhp.rushydro.ru

"Гидроузел на р. Ардон". Lhp.rushydro.ru. Archived from the original on 14 August 2012. Retrieved 1 February 2016.

zaramag.rushydro.ru

"Общие сведения". Zaramag.rushydro.ru. Archived from the original on 20 May 2013. Retrieved 1 February 2016.

blog.rushydro.ru

"Зарамагский тоннель – Блог РусГидро". Blog.rushydro.ru. Archived from the original on 15 February 2016. Retrieved 16 June 2019.

scmp.com

"Chinese engineers digging giant desert tunnel never saw this coming". South China Morning Post. 18 December 2021. Archived from the original on 21 December 2021. Retrieved 21 December 2021.

selitunnel.com

"EVINOS-MORNOS TUNNEL – GREECE" (PDF). Selitunnel.com. Archived (PDF) from the original on 13 May 2019. Retrieved 1 February 2016.

semanticscholar.org

api.semanticscholar.org

Fu, Helin; Li, Jie; Li, Guoliang; Chen, Jingjun; An, Pengtao (1 June 2023). "Determination of In Situ Stress by Inversion in a Superlong Tunnel Site Based on the Variation Law of Stress — A Case Study". KSCE Journal of Civil Engineering. 27 (6): 2637–2653. Bibcode:2023KSJCE..27.2637F. doi:10.1007/s12205-023-0415-3. ISSN 1976-3808. S2CID 258273345. Archived from the original on 22 February 2024. Retrieved 17 November 2023.

semi.ac.cn

lib.semi.ac.cn

"Measurement of compressive and tensile strain in the railway structures with FBG sensor packages" (PDF). lib.semi.ac.cn:8080. Archived from the original (PDF) on 2 March 2012.

siciliainprogress.com

Maria, Roberto Di (7 February 2022). "RADDOPPIO PALERMO-CATANIA, PRONTO IL PROGETTO FIUMETORTO-LERCARA - Siciliainprogress" (in Italian). Retrieved 11 April 2022.

simaowang.com

"62.596Km，这里有最陡的斜井！走进滇中引水最长深埋隧洞"香炉山"-思茅网". www.simaowang.com. Retrieved 20 November 2024.

sina.com

english.sina.com

"Tianshan Shengli tunnel under construction in Xinjiang – China News – SINA English". Archived from the original on 22 January 2022. Retrieved 22 January 2022.

sina.com.cn

gd.sina.com.cn

"莞惠城际最快明年启用松山湖隧道长38公里_新浪东莞". Sina Corp. Archived from the original on 20 January 2016. Retrieved 1 February 2016.

spiegel.de

"Milliarden unters Meer". Der Spiegel. 26 May 2020. Archived from the original on 22 September 2020. Retrieved 21 January 2022.

straitstimes.com

"Downtown Line 3 officially opens; Khaw Boon Wan announces review of fares incurred when switching between stations | the Straits Times". The Straits Times. 20 October 2017. Archived from the original on 3 July 2019. Retrieved 1 February 2022.
"First phase of Cross Island MRT line finalised; will have 12 stations". The Straits Times. 25 January 2019. Archived from the original on 25 January 2019. Retrieved 12 June 2019.

stroitelstvo.info

"The design of lot 3 of Struma motorway is completed". stroitelstvo.info (in Bulgarian). 18 November 2013. Archived from the original on 25 November 2013.

structurae.de

en.structurae.de

"Guadarrama Tunnel". Structurae. Archived from the original on 5 October 2013. Retrieved 1 February 2016.
"Iiyama Tunnel". Structurae. Archived from the original on 14 May 2012. Retrieved 1 February 2016.

structurae.net

"Valico Tunnel (Alessandria/Genova, 2021)". Archived from the original on 25 July 2023. Retrieved 25 July 2023.

tagesanzeiger.ch

"Wer hat die grösste Röhre?" [Who has the longest tube?]. Tages-Anzeiger (graphical animation) (in German). Zurich, Switzerland. 14 April 2016. Archived from the original on 29 April 2016. Retrieved 11 May 2016.

telt-sas.com

"TELT Lyon Turin • Chronology of works". Archived from the original on 17 October 2020. Retrieved 17 October 2020.

thaipbsworld.com

"Protests greet PM in Chiang Mai, over 2,000 police provide protection". thaipbsworld.com. Archived from the original on 30 October 2023. Retrieved 24 October 2023.

theguardian.com

"North York Moors potash mine gets £1.7bn go-ahead". The Guardian. 30 June 2015. Archived from the original on 15 March 2017. Retrieved 1 February 2016.
"Work begins boring first HS2 tunnel under Chiltern Hills". The Guardian. 13 May 2021. Archived from the original on 19 May 2021. Retrieved 21 May 2021.

themetrorailguy.com

"Mumbai-Ahmedabad Bullet Train: Afcons Begins Piling Work for Shaft-2". 12 November 2023. Archived from the original on 19 February 2024. Retrieved 19 February 2024.
"Herrenknecht to Supply Mumbai-Ahmedabad Bullet Train's Tunnel Boring Machines". 18 July 2023. Archived from the original on 19 February 2024. Retrieved 19 February 2024.
"Herrenknecht to Supply Mumbai-Ahmedabad Bullet Train's Tunnel Boring Machines". 18 July 2023. Archived from the original on 19 February 2024. Retrieved 19 February 2024.
"ICT Bids for DPR of Assam's Tunnel Project Under Brahmaputra". 12 July 2023. Archived from the original on 19 February 2024. Retrieved 19 February 2024.

thepaper.cn

"川藏铁路雅安至林芝段建设获批，总投资3198亿元共26站_财经上下游_澎湃新闻-The Paper". thepaper.cn. Archived from the original on 20 February 2021. Retrieved 17 November 2023.

therobbinscompany.com

"Pahang Selangor Raw Water Tunnel | The Robbins Company". Therobbinscompany.com. Archived from the original on 1 July 2016. Retrieved 30 May 2016.
"Olmos Trans-Andean Tunnel". The Robbins Company. 20 December 2011. Retrieved 1 February 2016.

thisweekinarmenianhistory.blogspot.com

"This Week In Armenian History: Inauguration of the Arpa-Sevan Tunnel (March 21, 1981)". Thisweekinarmenianhistory.blogspot.com. 21 March 2016. Archived from the original on 13 April 2019. Retrieved 16 June 2019.

tistory.com

civileng7.tistory.com

경부고속철도 금정터널 개요 (in Korean). Civil Engineering. 6 July 2009. Archived from the original on 11 March 2012. Retrieved 28 August 2010.

tractebel-engie.com

https://tractebel-engie.com/en/references/mantaro-hydroelectric-complex-modernisation ^{[bare URL]}

trafikverket.se

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