{"id":5754,"date":"2026-07-21T07:56:52","date_gmt":"2026-07-21T05:56:52","guid":{"rendered":"https:\/\/www.svalbard.fr\/actualites\/mise-a-jour-majeure-sur-le-plus-long-tunnel-sous-marin-du-monde-coutant-18-milliard-de-livres-sterling-et-setendant-sur-27-km\/"},"modified":"2026-07-21T07:56:55","modified_gmt":"2026-07-21T05:56:55","slug":"mise-a-jour-majeure-sur-le-plus-long-tunnel-sous-marin-du-monde-coutant-18-milliard-de-livres-sterling-et-setendant-sur-27-km","status":"publish","type":"post","link":"https:\/\/www.svalbard.fr\/actualites\/mise-a-jour-majeure-sur-le-plus-long-tunnel-sous-marin-du-monde-coutant-18-milliard-de-livres-sterling-et-setendant-sur-27-km\/","title":{"rendered":"Mise \u00e0 jour majeure sur le plus long tunnel sous-marin du monde, co\u00fbtant 1,8 milliard de livres sterling et s&#39;\u00e9tendant sur 27 km"},"content":{"rendered":"<div>\n<div class=\"photo changeSpace\">\n<p class=\"withoutCaption\"><picture><source type=\"image\/avif\" srcset=\"https:\/\/cdn.images.express.co.uk\/img\/dynamic\/78\/1200x712\/secondary\/7051803.avif?r=1784558880276\" media=\"screen and (min-width:10000px)\"><source type=\"image\/jpeg\" srcset=\"https:\/\/www.svalbard.fr\/actualites\/wp-content\/uploads\/2026\/07\/Mise-a-jour-majeure-sur-le-plus-long-tunnel-sous-marin.jpg\" media=\"screen and (min-width:10000px)\"><source type=\"image\/avif\" srcset=\"https:\/\/cdn.images.express.co.uk\/img\/dynamic\/78\/674x400\/secondary\/7051803.avif?r=1784558880276\" media=\"screen and (min-width:100000px)\"><source type=\"image\/jpeg\" srcset=\"https:\/\/cdn.images.express.co.uk\/img\/dynamic\/78\/674x400\/secondary\/7051803.jpg?r=1784558880276\" media=\"screen and (min-width:100000px)\"><source type=\"image\/avif\" srcset=\"https:\/\/cdn.images.express.co.uk\/img\/dynamic\/78\/940x\/secondary\/7051803.avif?r=1784558880276\" media=\"screen and (min-width:1200px)\"><source type=\"image\/jpeg\" srcset=\"https:\/\/cdn.images.express.co.uk\/img\/dynamic\/78\/940x\/secondary\/7051803.jpg?r=1784558880276\" media=\"screen and (min-width:1200px)\"><source type=\"image\/avif\" srcset=\"https:\/\/cdn.images.express.co.uk\/img\/dynamic\/78\/590x\/secondary\/7051803.avif?r=1784558880276\" media=\"screen\"><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/picture><\/p>\n<p><span class=\"newsCaption\">Le tunnel sera le plus long tunnel sous-marin du monde <span class=\"caption\">(Image\u00a0: Administration norv\u00e9gienne des routes publiques)<\/span><span class=\"magnifier\" data-img=\"https:\/\/www.svalbard.fr\/actualites\/wp-content\/uploads\/2026\/07\/Mise-a-jour-majeure-sur-le-plus-long-tunnel-sous-marin.jpg\"\/><\/span><\/div>\n<div class=\"text-description\">\n<p>Il y a eu une mise \u00e0 jour majeure dans un incroyable projet visant \u00e0 construire le tunnel sous-marin le plus long et le plus profond du monde.<\/p>\n<\/div>\n<div class=\"text-description\">\n<p>Le tunnel de Rogfast, en Norv\u00e8ge, sera le tunnel sous-marin le plus profond de la plan\u00e8te lorsqu&#39;il sera construit \u00e0 400 m sous le niveau de la mer. Le tunnel devrait ouvrir en 2033.<\/p>\n<\/div>\n<div class=\"text-description\">\n<p>La construction, d&#39;une longueur impressionnante de 27 km (environ 17 miles), reliera les villages de Randaberg et de Bokn, r\u00e9duisant ainsi consid\u00e9rablement les temps de circulation. <\/p>\n<\/div>\n<div class=\"text-description\">\n<p>Les travaux sur ce projet ambitieux ont d\u00e9but\u00e9 en janvier 2018, mais ont \u00e9t\u00e9 suspendus l&#39;ann\u00e9e suivante en raison de l&#39;escalade des co\u00fbts. La construction a repris en 2021 apr\u00e8s la r\u00e9vision des plans, et maintenant une mise \u00e0 jour majeure a \u00e9t\u00e9 annonc\u00e9e qui donnera un \u00e9lan majeur aux plans.<\/p>\n<\/div>\n<div class=\"text-description\">\n<p>La Banque nordique d&#39;investissement (NIB) a sign\u00e9 un pr\u00eat de 4 milliards NOK (environ 307 millions de livres sterling) pour financer le projet, la soci\u00e9t\u00e9 de p\u00e9age norv\u00e9gienne Ferde AS agissant comme interm\u00e9diaire.<\/p>\n<\/div>\n<div class=\"text-description\">\n<p>\u00ab\u00a0Une infrastructure fiable est essentielle au d\u00e9veloppement r\u00e9gional et \u00e0 des liaisons de transport efficaces. Rogfast am\u00e9liorera la connectivit\u00e9 dans l&#39;ouest de la Norv\u00e8ge et soutiendra l&#39;int\u00e9gration \u00e0 long terme des march\u00e9s du travail et des transports\u00a0\u00bb, a d\u00e9clar\u00e9 Carlos Rodriguez, banque senior chez NIB.<\/p>\n<\/div>\n<div class=\"photo changeSpace\">\n<p class=\"withoutCaption\"><picture><source type=\"image\/avif\" srcset=\"https:\/\/cdn.images.express.co.uk\/img\/dynamic\/78\/1200x712\/secondary\/7051805.avif?r=1784558880288\" media=\"screen and (min-width:10000px)\"><source type=\"image\/jpeg\" srcset=\"https:\/\/cdn.images.express.co.uk\/img\/dynamic\/78\/1200x712\/secondary\/7051805.jpg?r=1784558880288\" media=\"screen and (min-width:10000px)\"><source type=\"image\/avif\" srcset=\"https:\/\/cdn.images.express.co.uk\/img\/dynamic\/78\/674x400\/secondary\/7051805.avif?r=1784558880288\" media=\"screen and (min-width:100000px)\"><source type=\"image\/jpeg\" srcset=\"https:\/\/cdn.images.express.co.uk\/img\/dynamic\/78\/674x400\/secondary\/7051805.jpg?r=1784558880288\" media=\"screen and (min-width:100000px)\"><source type=\"image\/avif\" srcset=\"https:\/\/cdn.images.express.co.uk\/img\/dynamic\/78\/940x\/secondary\/7051805.avif?r=1784558880288\" media=\"screen and (min-width:1200px)\"><source type=\"image\/jpeg\" srcset=\"https:\/\/cdn.images.express.co.uk\/img\/dynamic\/78\/940x\/secondary\/7051805.jpg?r=1784558880288\" media=\"screen and (min-width:1200px)\"><source type=\"image\/avif\" srcset=\"https:\/\/cdn.images.express.co.uk\/img\/dynamic\/78\/590x\/secondary\/7051805.avif?r=1784558880288\" media=\"screen\"><img decoding=\"async\" src=\"https:\/\/www.svalbard.fr\/actualites\/wp-content\/uploads\/2026\/07\/1784613412_94_Mise-a-jour-majeure-sur-le-plus-long-tunnel-sous-marin.jpg\" alt=\"Projet Rogfast\" title=\"Projet Rogfast\" width=\"590\" height=\"350\" loading=\"lazy\"\/><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/picture><\/p>\n<p><span class=\"newsCaption\">Le projet a re\u00e7u un coup de pouce financier <span class=\"caption\">(Image\u00a0: SKANSA)<\/span><\/span><\/div>\n<div class=\"text-description\">\n<p>Ce tunnel \u00e9pique fait partie d&#39;un r\u00e9am\u00e9nagement plus large de la route E39, une route c\u00f4ti\u00e8re entre Trondheim et Kristiansand en Norv\u00e8ge. Actuellement, le trajet entre ces deux points prend 21 heures et plusieurs travers\u00e9es en ferry.<\/p>\n<\/div>\n<div class=\"text-description\">\n<p>L\u2019objectif \u00e0 long terme est de remplacer les sept travers\u00e9es en ferry par des tunnels et des ponts, ce qui r\u00e9duirait le trajet de 21 heures \u00e0 11 heures. Les autorit\u00e9s visent \u00e0 achever l\u2019ensemble du projet d\u2019ici 2050.<\/p>\n<\/div>\n<div class=\"text-description\">\n<p>Ce premier tunnel permettra de r\u00e9duire de 40 minutes le trajet entre Stavanger et Bergen tout en am\u00e9liorant la fiabilit\u00e9 des transports.<\/p>\n<\/div>\n<div class=\"text-description\">\n<p>Le co\u00fbt total devrait s&#39;\u00e9lever \u00e0 25 milliards NOK (environ 1,8 milliard de livres sterling) et verra environ 4 000 v\u00e9hicules transiter quotidiennement.<\/p>\n<\/div>\n<div class=\"text-description\">\n<p>Le tunnel de Rogfast, \u00e9galement connu sous le nom de tunnel du Boknafjord, comportera m\u00eame un double rond-point profond\u00e9ment sous la mer, reliant l&#39;\u00eele de Kvits\u00f8y et les gens p\u00e9n\u00e9treront plus profond\u00e9ment sous terre que la hauteur de l&#39;Empire State Building.<\/p>\n<\/div>\n<div class=\"photo changeSpace\">\n<p class=\"withoutCaption\"><picture><source type=\"image\/avif\" srcset=\"https:\/\/cdn.images.express.co.uk\/img\/dynamic\/78\/1200x712\/secondary\/7051809.avif?r=1784558880358\" media=\"screen and (min-width:10000px)\"><source type=\"image\/jpeg\" srcset=\"https:\/\/cdn.images.express.co.uk\/img\/dynamic\/78\/1200x712\/secondary\/7051809.jpg?r=1784558880358\" media=\"screen and (min-width:10000px)\"><source type=\"image\/avif\" srcset=\"https:\/\/cdn.images.express.co.uk\/img\/dynamic\/78\/674x400\/secondary\/7051809.avif?r=1784558880358\" media=\"screen and (min-width:100000px)\"><source type=\"image\/jpeg\" srcset=\"https:\/\/cdn.images.express.co.uk\/img\/dynamic\/78\/674x400\/secondary\/7051809.jpg?r=1784558880358\" media=\"screen and (min-width:100000px)\"><source type=\"image\/avif\" srcset=\"https:\/\/cdn.images.express.co.uk\/img\/dynamic\/78\/940x\/secondary\/7051809.avif?r=1784558880358\" media=\"screen and (min-width:1200px)\"><source type=\"image\/jpeg\" srcset=\"https:\/\/cdn.images.express.co.uk\/img\/dynamic\/78\/940x\/secondary\/7051809.jpg?r=1784558880358\" media=\"screen and (min-width:1200px)\"><source type=\"image\/avif\" srcset=\"https:\/\/cdn.images.express.co.uk\/img\/dynamic\/78\/590x\/secondary\/7051809.avif?r=1784558880358\" media=\"screen\"><img decoding=\"async\" src=\"https:\/\/www.svalbard.fr\/actualites\/wp-content\/uploads\/2026\/07\/1784613412_683_Mise-a-jour-majeure-sur-le-plus-long-tunnel-sous-marin.jpg\" alt=\"Rogfast\" title=\"Rogfast\" width=\"590\" height=\"334\" loading=\"lazy\"\/><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/picture><\/p>\n<p><span class=\"newsCaption\">On esp\u00e8re que le tunnel sera achev\u00e9 d&#39;ici 2033 <span class=\"caption\">(Image : \u00c9quipement de construction Volvo\/YouTube)<\/span><\/span><\/div>\n<div class=\"text-description\">\n<p>L&#39;entreprise de construction Skanska, qui g\u00e8re la partie nord du tunnel, a \u00e9voqu\u00e9 les difficult\u00e9s li\u00e9es au forage aussi profond dans l&#39;oc\u00e9an.<\/p>\n<\/div>\n<div class=\"text-description\">\n<p>La chef de projet Anne Brit Moen a d\u00e9clar\u00e9 \u00e0 Engineers Ireland : \u00ab Puisque nous descendons jusqu&#39;\u00e0 392 m sous le niveau de la mer, nous nous concentrons sur la recherche des meilleures m\u00e9thodes pour maintenir des conditions de travail s\u00fbres et efficaces pour tout le monde. Le tunnel am\u00e9liorera consid\u00e9rablement la connectivit\u00e9 le long de la c\u00f4te ouest norv\u00e9gienne.<\/p>\n<\/div>\n<div class=\"text-description\">\n<p>Et Oddvar Kaarmo, chef de projet de l&#39;Administration norv\u00e9gienne des routes publiques, d&#39;ajouter : \u00ab\u00a0Environ six mois apr\u00e8s le dernier forage et dynamitage, nous devons livrer le projet, nous devons donc accomplir beaucoup de travail simultan\u00e9ment. C&#39;est plus une question de logistique que de creusement de tunnels\u00a0\u00bb, rapporte le Daily Telegraph.<\/p>\n<\/div>\n<div class=\"text-description\">\n<p>Une installation artistique sera install\u00e9e \u00e0 l&#39;int\u00e9rieur du tunnel pour \u00ab\u00a0\u00e9viter la monotonie\u00a0\u00bb et \u00ab\u00a0att\u00e9nuer l&#39;anxi\u00e9t\u00e9 du tunnel\u00a0\u00bb, les chefs de chantier esp\u00e9rant que cela r\u00e9duira les accidents.<\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Le tunnel sera le plus long tunnel sous-marin du monde (Image\u00a0: Administration norv\u00e9gienne des routes publiques) Il y a eu une mise \u00e0 jour majeure<\/p>\n","protected":false},"author":1,"featured_media":5755,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2277],"tags":[583,632,411,291,1908,1884,688,307,1683,1837,412,28,788],"yoast_head":"<!-- This site is optimized with the 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