is a tunnel on JR Nagasaki Main Line that runs from Genkawa Station to Urakami Station in Nagasaki city, Nagasaki prefecture with total length of 6.173 km. It was built and completed in 1972.JR 長崎本線長崎トンネル in Japanese.
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 Nagasaki Tunnel in Japanese