Anzob Tunnel Road. It is also a transit route between Dushanbe and Uzbekistan's capital Tashkent. Prior to construction of the tunnel, especially during winter, the threat of year-round avalanches led to periodic disruptions of commerce. The tunnel was officially opened in March 2006; it was built by the Iranian Sabir Co. Due to the significance of the tunnel, limited traffic flow was permitted via signing a waiver form noting potential hazards such as flooding and smog from construction equipment operating inside the tunnel prior to the final construction phase which may have included installation of ventilation and drainage infrastructure. As of May
Alderton Tunnel Alderton Tunnel The Alderton Tunnel sits on the South Wales Main Line in England, on a stretch of line between Swindon and Bristol Parkway. The tunnel, which is 506 yards long, was opened on 1 January 1903 along with the line between and , that being the first section of the South Wales & Bristol Direct Line of the Great Western Railway. Building of the tunnel commenced at least two years before 1903, as the rise in railway workers boarding in Alderton village can be seen in the 1901 Census. As part of the modernisation of the Great Western main