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Switzerland's Mega Tunnel Under the Alps

It's a colossal project, costing over 12 billion euros, that has redrawn the map of Europe: the longest railway tunnel ever dug. Cutting through the geological mille-feuille of the St. Gotthard in the Swiss Alps, this interminable tunnel will bring Switzerland and Italy closer together via a high-speed rail line, and reduce truck traffic crossing the country by transferring part of road freight transport to rail. But the construction of this gigantic tunnel was a long and arduous process. In this latest episode of Looking 4, we take you deep into the Swiss Alps to discover the countless technical challenges that had to be overcome to accomplish this engineering feat. Looking 4 also continues on Discord and Instagram 👇 Instagram of the channel 👇   / instalooking4   The Discord link to exchange with the Looking 4 community 👇  / discord   For more videos, feel free to subscribe to the channel just below 👇    / looking4en   Some images are from AlpTransit Gothard, RMC Découverte, Thanks to them! 📽 My other royalty free images and music.👇 ✔ https://1.envato.market/x9n51R #construction #megarailway #tunnel 00:00 A 12 billion euro mega-tunnel 00:41 The advantages of the Gotthard Base Tunnel 02:21 The historic old Gotthard tunnel 02:53 Saving time with the high-speed line 03:24 How the base tunnel works 03:56 An ultra-secure tunnel 04:27 Technical challenge 1: Finding the right route 07:07 Building the tunnels and access shafts 08:51 Tunnel boring machine attack 09:48 Challenge 2: The Sedrun section 10:47 Challenge 3: Consolidating the railway tunnel vault 11:31 Building the railway installations 13:01 The threat of the Mont Cenis base tunnel 2023 Looking 4 (En) | All rights reserved.