How long is the channel tunnel? The channel tunnel is 31.5 miles long or 50.45 km. That’s the equivalent of 169 eiffel towers stacked on top of each other. 23.5 miles (37.9 km) of the channel tunnel is under the english channel, making it the world’s longest undersea tunnel.
How Long Is the Tunnel from England to France?
The tunnel from England to France is one of the most interesting and important pieces of infrastructure in Europe. Spanning over 31 miles, the Channel Tunnel, or Chunnel as it is more commonly known, connects the United Kingdom with mainland Europe and is one of the longest underwater tunnels in the world.
The Chunnel was first proposed in the early 19th century and construction began in 1988. The project was a huge undertaking and it took six years for the tunnel to be completed in 1994. The project was a joint effort between the UK and France and it was designed to link the two countries by a high-speed railway line.
The Chunnel is made up of three separate tunnels; two running tunnels and a service tunnel. The two running tunnels are used for trains to travel between England and France and these tunnels are 7 feet in diameter and are 8.5 miles in length. The service tunnel is used for maintenance, emergency services and other essential services. The total length of the Chunnel is 31 miles and it runs approximately 150 feet below the seabed.
The Chunnel is a marvel of engineering, and it has been a great success since it opened. It has reduced journey times between England and France from a few hours to just over thirty minutes
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