{"id":20275,"date":"2026-08-25T07:20:58","date_gmt":"2026-08-25T07:20:58","guid":{"rendered":"https:\/\/tunnelingworld.com\/?p=20275"},"modified":"2026-08-25T07:22:53","modified_gmt":"2026-08-25T07:22:53","slug":"toulouse-metro-line-c-completes-tunnelling","status":"publish","type":"post","link":"https:\/\/tunnelingworld.com\/?p=20275","title":{"rendered":"Final breakthrough on Toulouse Metro Line C Lot 3"},"content":{"rendered":"<p>The Implenia \/ Demathieu Bard Construction joint venture has completed tunnelling on Lot 3 of Toulouse Metro Line C.<\/p>\n<p>TBM Marie-Th\u00e9r\u00e8se de Villeneuve-Arifat broke through at the Saint-Sauveur shaft last week after excavating a 4km section and installing 2,198 rings beneath the city. The 10m-diameter variable density machine was launched in October 2024 from Raisin station.<\/p>\n<p>Lot 3 also includes civil engineering works for the construction of four underground stations at depths of 24-39m, a ventilation shaft, and diaphragm walls up to 57m deep.<\/p>\n<p>Tiss\u00e9o\u2019s Line C will stretch from Colomiers station in the north-west to Lab\u00e8ge station in the south-east with 21 stations along the route. Around 22km of the 27km route will be underground.<\/p>\n<p>On September 19, Tiss\u00e9o will open five of the project\u2019s construction sites to the public. Visitors will be able to explore the underground spaces at five stations \u2013 Blagnac; Bonnefoy; Limayrac \u2013 Cit\u00e9 de l\u2019Espace; Montaudran Gare \u2013 Piste des G\u00e9ants; and Lab\u00e8ge Madron \u2013 and walk through a section of completed tunnel.<\/p>\n<p>The line is scheduled to open in 2028.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The Implenia \/ Demathieu Bard Construction joint venture has completed tunnelling on Lot 3 of Toulouse Metro Line C. TBM Marie-Th\u00e9r\u00e8se de Villeneuve-Arifat broke through at the Saint-Sauveur shaft last week after excavating a 4km section and installing 2,198 rings beneath the city. The 10m-diameter variable density machine was launched in October 2024 from Raisin station. Lot 3 also includes civil engineering works for the construction of four underground stations at depths of 24-39m, a ventilation shaft, and diaphragm walls up to 57m deep. Tiss\u00e9o\u2019s Line C will stretch from Colomiers station in the north-west to Lab\u00e8ge station in the [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":20276,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[41],"tags":[5438,5437,3774,321],"class_list":["post-20275","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","tag-implenia-demathieu-bard-construction-joint-venture","tag-tbm-marie-therese-de-villeneuve-arifat","tag-toulouse-metro-line-c","tag-tunnelling","post--single"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Toulouse Metro Line C Completes 4km Tunnel Excavation<\/title>\n<meta name=\"description\" content=\"Toulouse Metro Line C completes a 4km tunnelling drive on Lot 3 after TBM Marie-Th\u00e9r\u00e8se de Villeneuve-Arifat 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