Read on below for the 10 longest underwater tunnels in the world. Currently the longest and most expensive rail tunnel in the world, the Gotthard Base Tunnel opened for service on 11 Dec. 2016. Päijänne Water Tunnel, Finland. Top 10 Longest Rail and Road Tunnels of India . They handle traffic in efficient ways, and are laid sometimes through mountains and even water to meet the needs of highways and roads. 9) Interstate 90 (I-90) (USA) Adding to the list of longest roads from the US, Interstate 90 (I-90) runs from Boston, Massachusetts, to Seattle, Washington is the 9 th longest road in the world. It is 49.9km long and 37.9 km of it is below the sea, thus making it the longest undersea tunnel in the world. Slated to become the world’s longest tunnel at an altitude above 3,000 m or 10,000 ft when it opens officially in June 2020, the Rohtang Tunnel is also one among the longest road tunnel in India. Artemisio Tunnel (road), Double tunnel, under Mount Artemision, 1.40 km 76 tunnels of Egnatia motorway , most notably in parts of Epirus and Western Macedonia , combined length of 99 km, the longest of which are Driskos Tunnel 4.6 km, Metsovo Tunnel 3.5 km, Dodoni Tunnel 3.6 km, Kastania Tunnel 2.2 km, Anilio Tunnel 2.1 km It is also the third longest road tunnel in China, after the Zhongnanshan and Maijishan tunnels. Tunnels are some of the most amazing displays of engineering. 3 of the world's 10 longest road tunnels are situated in Norway. The world's longest road tunnel opened in 2000 connecting Oslo and Bergen. Being 25 km long the Laerdal Tunnel i Norway is the world's longest road tunnel - and it is equipped with … 2 – Päijänne Water Tunnel, Finland – Length: 120,000 meters (74.6 miles) Wiki info: The Päijänne Water Tunnel, located in Southern Finland, is the world’s second longest tunnel (after the Delaware Aqueduct in the USA).It is 120 kilometers (75 mi) long and runs 30–100 meters under the surface in bedrock. 10 Thames Tunnel – 0.4 km The Baojiashan tunnel, located in the Shaanxi province of China, ranks as the tenth longest road tunnel in the world. The tunnel was constructed in seven years as it was started in 2007 and completed … The total length of the tunnel is 32.645 km (20.285 miles), which makes it the longest railway tunnel in China and the world's longest railway tunnel at high altitude. It is also the longest stretch in the entire Interstate Highway System in the US. 2. The tunnel consists of two tubes running 11.18km-long each. At 24.5 kilometres, the Lærdal tunnel is the world's longest road tunnel. ... all while rising roughly 700 feet toward the top of the Spiraltoppen, this tunnel offers visitors a … The Rohtang Tunnel is the World’s Highest Road Tunnel situated under the Rohtang Pass of eastern Pir Panjal range of the Himalayas on the Leh-Manali Highway in Himachal Pradesh. Located 8,040 ft (2,450m) beneath the heart of the Gotthard axis in the Swiss Alps, the Gotthard Base Tunnel is the deepest railway tunnel to date and is used primarily to transfer both passengers and freight between northern and southern Europe. The World's longest Road Tunnels; Country: Tunnel: Length: Date of opening: Norway: Laerdal: 24 510 m: 27.11.2000: China: Zhongnanshan (2 tubes) 18 040 m The road links Aurland and Lærdal, in the heart of Sogn, and provides a ferry-free connection between Oslo and Bergen. 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