Zhongnanshan Tunnel
road tunnel
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. It is also the fifth longest road tunnel in the world, after the Lærdal Tunnel in Norway, WestConnex in Australia, the Tianshan Shengli Tunnel in China and the Yamate Tunnel in Japan.
The 18,040-metre (11.21 mi) long tunnel, crosses under the Zhongnan Mountains (Zhongnanshan). It opened on 20 January 2007, becoming part of the Xi'an-Ankang Highway between Chang'an and Zhashui. The cost to build the tunnel was 3.2 billion yuan (US$410 million). The maximum embedded depth of the tunnel is 1640 metres below surface level.
This brief starts where responsible research should: with the source description of “Zhongnanshan Tunnel” as road tunnel. Everything that follows is an evidence route, not borrowed authority.
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The subject matters to the general reference register because the source frames it as road tunnel. Its deeper value depends on whether names, dates, institutions and citations support that framing.
Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Jul 24, 2026. The linked authority identifier is Q197883. Authority coordinates are 33.883, 108.967. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 2007 and 1640.
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This entry incorporates text from “Zhongnanshan Tunnel” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.