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There are four classes of road tunnels in China by length. [1]Super-long tunnel (>3,000m) Long tunnel (1,000m-3,000m) Middle-tunnel (250m-1,000m) Short tunnel (<250m) By 2012, there are 10,022 road tunnels and 8,052.7 km in total length in mainland China, including 441 super-long tunnels with 1,984.8 km in total length and 1,944 long tunnels with 3,304.4 km in total length.
Lishan Tunnel China 6.998 km (4.348 mi) 2027 2 Qingtian-Wencheng Expressway Detuo Tunnel China 6.940 km (4.312 mi) [91] 2024 2 Luding-Shimian Expressway Dulagezan Tunnel China 6.930 km (4.306 mi) [fv] 2024 2 S226 Provincial Road Longlongba Tunnel China 6.875 km (4.272 mi) [92] 2025 2
Jinjiazhuang Tunnel (Chinese: 金家庄隧道) or Jinjiazhuang Spiral Tunnel (Chinese: 金家庄螺旋隧道), is the world's longest highway spiral tunnel. [ 1 ] [ 2 ] The spiral has a curve radius of 860 metres (2,820 ft) and the elevation difference between the tunnel entrance and exit is 112 metres (367 ft).
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
Zhongnanshan Tunnel, or Qinling Zhongnanshan Tunnel (Chinese: 秦岭终南山公路隧道) in Shaanxi province, China, is the longest two-tube road tunnel in China. [1] It is also the fourth longest road tunnel overall in the world, after the Lærdal Tunnel in Norway , the Yamate Tunnel in Japan [ 1 ] and WestConnex in Australia.
Cross-Harbour Tunnel (underwater) (road) Eagle's Nest Tunnel (cross-mountain) (road) Eastern Harbour Crossing / Tseung Kwan O line (road and metro) Kai Tak Tunnel (beneath site of former Hong Kong International Airport) (road) Lion Rock Tunnel (cross-mountain) (road and water pipe) Sha Tin Heights Tunnel (cross-mountain) (road) Shing Mun ...
The southwest portal of the Lærdal Tunnel in Norway, the world's longest road tunnel. This list of longest tunnels ranks tunnels that are at least 13 km (8.1 mi) long. Only continuous tunnels are included. Pipelines, even those that are buried, are excluded. The longest tunnels have been constructed for water distribution, followed by tunnels ...
[6] [7] The bridge and tunnel were planned together as the Jiaozhou Bay Connection Project. [8] The contiguous length of the tunnel road is about 7.8 km (4.8 mi), part of which is underground and part under the sea. [9] The sub-sea portion is 3.95 km (2.45 mi). [9] The deepest point of the crown of the tube to sea level is 74 meters. [9]