is a tunnel on JR's Tohoku Shinkansen located between Ninohe Station (Iwate Prefecture) and Hachinohe Station in Nanbu town, Sannohe, Aomori Prefecture with total length of 8.250 km. It was built and completed in 2002. https://www.pref.aomori.lg.jp/soshiki/kikaku/kotsu/keii.html Sannohe Tunnel
See also List of tunnels in Japan Seikan Tunnel undersea tunnel between Honshu-Hokkaido islands Kanmon Railway Tunnel undersea tunnel between Honshu-Kyushu islands Sakhalin–Hokkaido Tunnel Bohai Strait tunnel
References
External links Gov. maps.gsi.go.jp Mapion maps Sannohe tunnel 三戸トンネル