HISTORY OF TUNNELS

 

The oldest used rail tunnel in the world was built in 1836. Only a short section of it remains now in Liverpool.

The World's oldest underwater tunnel is said to be the Terelek kaya tüneli under Kızıl River, a little south of the towns of Boyabat and Duragan in Turkey. It was built more than 2000 years ago (possibly 5000) and possibly had a defensive purpose.

The examples of other historical tunnels are as follows:

The List of tunnels by length:

The longest canal tunnel is the Standedge Tunnel in the United Kingdom, over 5 km (3.1 mi) long.