青兰高速公路隧道

青兰高速公路河北邯郸至涉县段全长99.1公里，桥隧路段占路线总长的40％。其中马鞍山隧道、井沟岭隧道和鼓山隧道组成的隧道群总长达11771.2米。马鞍山隧道长4.3公里，最大埋深307米。

The length of the section from Hebei Handan to Shexian of Qingdao-Lanzhou Expressway is 99.1km, the bridge and tunnel sections account for 40% of the total length of the route. The total length of tunnel group consisted of Maanshan Tunnel, Jinggouling Tunnel and Gushan Tunnel is 11771.2m. Maanshan Tunnel is 4.3km long with a maximum burial depth of 307m.