The Channel Tunnel – $22.4 Billion
In the list of the most expensive construction projects of the world, The Channel Tunnel comes on 10th number. This project is also named as the “Chunnel,” by French side of the project as this Channel Tunnel spans beneath the stretch of water between the Southern coast of England and the Northern coast of France. The 31 km long channel was started with a view to enhance commerce and trade between England and France. It cost fifteen French and British companies $22.4 billion to get it completed. And, the channel is operated by the financing group Eurotunnel. Though the initial estimated cost was less than the cost the project consumed. Some main reasons were Escalating demands for safety, security, and environmental measures.
Tunnel boring machines began excavating for the projects in 1988. And, in 1994, the tunnel became functional. It was tragic enough that ten workers died in the construction phase. The Channel Tunnel comprises of three parts: two rail tunnels that are 25 feet in diameter each, and one service tunnel 16 feet in diameter. Each span 31 miles underground.
There is a long tragic history of mishaps and misfortunes regarding this channel. There have been many fire incidents in the Channel Tunnel. These incidents caused not only severe injuries but took many lives as well.