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Construction started in March 2015. Together with the already constructed Inntal Tunnel it will form the world's longest continuous railway tunnel with 64 km. [97] [98] Metro Thomson–East Coast Line: MRT, Singapore 43,000 m (26.719 mi) 2024 Excluding planned extension Railway Yigong tunnel: Tibet, China 42,500 m (26.408 mi) [99] 2030
An immersed tunnel is planned for the Fehmarn Belt. At 17.6 km (10.9 mi), it will be the longest ever constructed, surpassing the current largest immersed tube tunnel, which spans 6.75 km (4.19 mi) across the Pearl River Estuary in China as part of the Hong Kong–Zhuhai–Macau Bridge.
Yayang Tunnel China 6.381 km (3.965 mi) 2026 2 Cangnan-Taishun Expressway Mawan Tunnel China 6.280 km (3.902 mi) 2024 2 Mawan Cross-sea Corridor Jiuling Tunnel China 6.264 km (3.892 mi) 2026 2 G59 12 Fangxian-Wufeng Expressway: Helinyakou Tunnel China 6.260 km (3.9 mi) 2024 2
Descending up to 40 meters beneath the Baltic Sea, the world’s longest immersed tunnel will link Denmark and Germany, slashing journey times between the two countries when it opens in 2029.
[3]: 268 The oldest immersed tube in Europe is the Maastunnel in Rotterdam, which opened in 1942. [4] The Marmaray Tunnel, connecting the European and Asian sides of Istanbul, Turkey, is the world's deepest immersed tunnel at 55 metres (180 ft) below sea level; [5] it is the first rail link crossing the straits. Construction began in 2004 and ...
The longest underwater road tunnel in the world Arlberg: Austria (Vorarlberg - Tyrol) 13.972 km (8.7 mi) 1978 1 S16/E60 "World's longest tunnel" 1979 - 1980: Xishan Tunnel: China 13.654 km (8.5 mi) 2012 [25] 2 S56 Shanxi Taiyuan-Gujiao Expressway Left tube：13.654 m, right tube：13.570 m New Erlangshan Tunnel [26] China
Yujialiang Tunnel Shaanxi: 14.504 km (9.012 mi) 2028 Chongqing-Xi'an High Speed Railway: Nanjing South Station Tunnel China 14.442 km (8.974 mi) 2026 Nanjing-Wuhu Railway: Chongming-Taicang Yangtse River Tunnel China (Jiangsu-Shanghai) 14.250 km (8.855 mi) 2028 Shanghai–Nanjing–Hefei high-speed railway: Xierluo Tunnel China
Here’s a new and unusual way to take in the London skyline: by zipping down a tunnel slide that claims to be the world’s tallest—and longest. 'World's Longest' Tunnel Slide Opens In London ...