, 3.5 mile tunnel that was dug for the purposes of Manchester-Sheffield Railroad in 1845.
, first large tunnel in United States. It was but over the period of 20 years (finished in 1876) and was 4.5 miles long. This was one of the first tunnel
constructions which used the power of the dynamite to cut through the rocks, power drums, and compressed-air systems.
Mont Cenis Tunnel
, fist great tunnel networks in the Alps Mountains. They were 8.5 mile long.
London underground metro
network was made in 1860s. Initially they dug deep trenches, installed support and then covered them up with dirt.
was the longest tunnel in the world between 1906 when it was made, all up to 1982. This tunnel linked Paris and Milan and was 19.7 kilometers long.
With its length of 154 km, Thirlmere Aqueduct in the UK is the world’s longest tunnel.