Jinjiazhuang Tunnel

Jinjiazhuang Tunnel or Jinjiazhuang Spiral Tunnel, is the world's longest highway spiral tunnel. 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 tunnel is on S3801 Beijing-Chongli Expressway. The Expressway is the main route from the Yanqing cluster to the Chongli cluster of the Beijing 2022 Winter Olympics.

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Tunnel data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).

Other tunnels in China

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