Tunnel · Iran

How much did the Tohid Tunnel in Tehran cost to build?

The Tohid (Towheed) Tunnel is a 2,136 m twin road tunnel with three lanes in each direction in Tehran, Iran, linking Chamran Highway and Navab Highway between Tohid Square and Jomhouri Square, the longest urban tunnel in the city and third longest in the Middle East. Tehran Municipality had the contractor Perlite begin work on 19 June 2007; planned for 27 months, it took 31 months of round-the-clock work and opened on 1 February 2010. It has 70 jet fans and smart monitoring systems, and Mehr News and Tehran Times report a cost of over USD 400 million.