The Seikan Tunnel is located beneath the Tsugaru Strait, a channel, in Japan. The precise coordinates are 41.3157 degrees N, 140.3351 degrees E.
The present Cascade Tunnel is 7.79 miles long. The original Cascade Tunnel was 2.63 miles long.
tunnel
Drift mines are characterized by the use of a level tunnel leading into the mine, while slope mines have an inclined tunnel, and shaft mines utilize a vertical tunnel
The Eisenhower Memorial Tunnel is 1.6 miles long...almost two miles long.
16,9 km
Tsugaru Strait, Japan: 53,850 metres (33.5 miles)
Seikan Tunnel was created in 1988.
The Seikan Tunnel is 14.5 miles long, being one of the longest tunnels in the world.
The Seikan Tunnel is in japan. it is one of the longest in the world.
The Earth's largest railroad tunnel is the Seikan Tunnel in Japan, which is over 33 miles long. When the Gotthard base tunnel in Switzerland is opened in 2016, Seikan Tunnel will be the second longest.
the answer is 14.5 miles
January 1983 to March 1988.
¥538 billion
The world's longest railroad tunnel is the Seikan Tunnel, it is 33.49 miles long.
They used steel and concrete!
The Seikan Tunnel connects the Japanese islands of Honshu and Hokkaido and is 33 miles long.
It is located beneath the Tsugaru Strait in Japan, and is 53.85 KM (33.46 MI) long. 23.3 KM (14.5 MI) is located under the seabed. It opened on March 13, 1988. It not only is the longest tunnel, it also is the deepest train tunnel in the wold. However, watch for the completion of the Gotthard Base Tunnel in Europe to take over the record sometime around 2018.