Japanese government says it's 'practically difficult' to conduct an investigation due to unclear burial location.

Japan boasts the world's longest underwater tunnel, which stretches for more than miles under the seabed of the Tsugaru Strait, but it's now barely being used. Work on the Seikan Tunnel was completed ...

The operator of Japan’s crippled Fukushima nuclear power plant intends to build an underwater tunnel to release water from the plant into the sea, it said on Tuesday, as part of a project to ...

During a residents' meeting on Jan. 18, JR Tokai acknowledged that the subsidence in that area was also likely caused by tunnel excavation. (Japanese original by Keisuke Ota, Gifu Bureau) ...

Nicholas Reid, MRCagney's transport planner, estimated the tunnel to cost 50 billion New Zealand dollars (£25 billion), ...

The underwater tunnel project was based on ... a group related to the Unification Church. The Japan-Korea Tunnel Research Institute was established in 1983. It became an NPO in 2004 to host ...