|Name in local language:||太行山隧道 (Tàiháng Shān Suìdào)|
|Beginning of works:||11 June 2005|
|Completion:||22 December 2007|
|Coordinates:||38° 7' 0.37" N 113° 28' 6.83" E|
|Coordinates:||38° 8' 49.10" N 113° 47' 1.98" E|
|length||27 848 m|
|number of tracks||2|
|number of tubes||2|
|on-axis distance between tubes||35 m|
Excerpt from Wikipedia
Taihang Tunnel (Chinese: 太行山隧道; pinyin: Tàiháng Shān Suìdào) is the third-longest mountain railway tunnel in northern China, after the New Guanjiao and West Qinling tunnels. It is a double track tunnel that was built to allow the Shitai Passenger Railway to cross the Taihang Mountains. The left track is 27,839 m (17.298 mi) long and the right one is 27,848 m (17.304 mi) long. Construction on the tunnel began on 11 June 2005 and the tunnel was opened on 22 December 2007.
The Shitai Passenger Railway is the high speed railway line linking Shijiazhuang, the capital of Hebei province, and Taiyuan, the capital of Shanxi province. After the opening of the Taihang Tunnel and completion of the high-speed railway, the travel time from Shijiazhuang to Taiyuan went down from almost six hours to one hour.