Wushaoling Tunnel
The 32nd longest tunnel in the world
The Wushaoling Tunnel (simplified, traditional, pinyin: Wūshāolǐng Tècháng Suìdào) is a 21.05 km dual-bore railway tunnel in Gansu, north-west China. The east-bound bore opened on 30 March 2006. The second bore opened in August 2006. It was briefly the longest railway tunnel in China until the opening of the 27.84 km Taihang Tunnel in late 2007. In 2018, a one year reconstruction of the signaling system was started. In 2019, construction of a parallel tunnel started, to carry the Lanzhou-Zhangye high speed railway.
Tunnel data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).