is a tunnel on JR-West Hokuriku Main Line in Japan that runs between Oazanou, Itoigawa city, Niigata prefecture and Tsuboyama, Nadachi ward, Joetsu city, Niigata prefecture with approximate length of 11.353 km. It was completed and opened in 1969, and officially inscribed by Reisuke Ishida, the president of the Japanese National Railways.“Hokuriku Main Line Kubiki Tunnel Section 3-4 Penetration", “Transport Technology” Vol. 22, No. 6 (223 pages), June 1967, Transportation Cooperation Association
See also List of tunnels in Japan Seikan Tunnel Tappi Shakō Line Sakhalin–Hokkaido Tunnel Bohai Strait tunnel
References
External links Gov. maps.gsi.go.jp Kubiki Tunnel in Japanese