Backwards Tunnel was created in 1871.
its backwards
Am Tunnel was created in 1993.
Milford Tunnel was created in 1839.
Forwards. Blue is backwards.
Cascade Tunnel was created in 1900.
Brush Tunnel was created in 1911.
Kohat Tunnel was created in 2003.
Clarence Tunnel was created in 1869.
Brinje Tunnel was created in 2004.
Lytle Tunnel was created in 1970.
Aigi Tunnel was created in 1925.
Connaught Tunnel was created in 1916.