Sakhalin–Hokkaidō Tunnel

The Sakhalin–Hokkaido Tunnel is a proposed tunnel connection to link the Russian island of Sakhalin with the Japanese island of Hokkaido through the Russia-Japan border. Cost estimates by Russia in the year 2000 put the project at $50 billion and that would span across the Soya strait for 45-kilometre (28-mile). If built as a bridge, it would have been the longest bridge in the world at the time. The project remains at the proposal stage.

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Wikidata
proposed rail infrastructure, proposed tunnel, railway tunnel, Japan, Russia, 

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Location: 46, 142, KML, Cluster Map, Maps,
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  Sakhalin–Hokkaidō Tunnel ⓘ
  a proposed tunnel between Russia and Japan

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Profile of Sakhalin tunnel

Type	Subtype	Date	Description	Notes	Source
site	tunnel		Sakhalin–Hokkaidō Tunnel	railway tunnel, proposed rail infrastructure, proposed tunnel	Wikidata
commons	image		Profile of Sakhalin tunnel		Commons