This list of tunnels in Japan includes any road, rail or waterway tunnel in Japan. Tunnel Opening Start location End location Note Seikan Tunnel - Kaikyō Line 13 March 1988 Honshu Hokkaido the second longest railway tunnel in the world (~53.85 km) Tsugaru Tunnel - Tsugaru-Kaikyō Line Sotogahama-cho in Aomori Imabetsu-cho in Aomori ~5.88 km Ichinoseki Tunnel - Tōhoku Shinkansen 1982 Ichinoseki Station 9.730 km Iwate-Ichinohe Tunnel - Tōhoku Shinkansen 2002 Morioka, Iwate Hachinohe, Aomori Fukushima Tunnel - Tōhoku Shinkansen Nasu Tunnel - Tōhoku Shinkansen 1982 7.030 km Sannohe Tunnel - Tōhoku Shinkansen 2002Ninohe Station Hachinohe Station 8.250 km Zaō Tunnel - Tōhoku Shinkansen Daishimizu Tunnel - Jōetsu Shinkansen 1982 Gunma Prefecture Niigata Prefecture Shimizu Tunnel - Jōetsu Line Gunma Prefecture Niigata Prefecture Shin-Shimizu Tunnel - Jōetsu Line Tsukiyono Tunnel - Jōetsu Line 7.295 km Haruna Tunnel - Jōetsu Shinkansen Nakayama Tunnel - Jōetsu Shinkansen Shiozawa Tunnel - Jōetsu Shinkansen Uonuma Tunnel - Jōetsu Shinkansen Bentenyama Tunnel - Tōkaidō Shinkansen 1963 1.316 km Horikoshi Tunnel - Tōkaidō Shinkansen 1963 1.415 km Izumigoshi Tunnel - Tōkaidō Shinkansen 1963 3.193 km Kanbara Tunnel - Tōkaidō Shinkansen 1968 4.934 km Makinohara Tunnel - Tōkaidō Shinkansen 1968 2.917 km Nangosan Tunnel - Tōkaidō Shinkansen 1961 5.170 km Tanna Tunnel - Tōkaidō Shinkansen 1934 Tokyo Kobe Shin-Tanna Tunnel (parallel to old Tanna Tunnel) - Tōkaidō Shinkansen Nihonzaka Tunnel (rail) - Tōkaidō Shinkansen Otowayama Tunnel - Tōkaidō Shinkansen 5.045 km Yui Tunnel - Tōkaidō Shinkansen 1968 3.993 km Haneda Tunnel - Tōkaidō Freight Line 1973 6.472 km Aioi Tunnel - Sanyō Shinkansen 3.988 km Aki Tunnel - Sanyō Shinkansen Fukuoka Tunnel - Sanyō Shinkansen 1975 8.488 km Hosaka Tunnel - Sanyō Shinkansen 1975 7.588 km Kitakyushu Tunnel - Sanyō Shinkansen 1975 11.747 km Kobe Tunnel - Sanyō Shinkansen 1972 Shin-Kobe Station Nishi-Akashi Station 7.970km Kanmon Tunnel - Sanyō Main Line 1942 Shimonoseki, Yamaguchi Kitakyūshū, Fukuoka Shin-Kanmon Tunnel - Sanyō Shinkansen Rokko Tunnel - Sanyō Shinkansen Shin-Noborikawa Tunnel - Sekishō Line Shin-Karikachi Tunnel - Nemuro Main Line Senzan Tunnel - Senzan Line Sengan Tunnel for #46 Road & JR Sengan Tunnel for Akita Shinkansen (Tazawako Line) Rokujurigoe Tunnel - Tadami Line Sasago Tunnel - Chūō Expressway 1977 Ōtsuki, Yamanashi Kōshū, Yamanashi Enrei Tunnel - Chūō Main Line 1983Okaya, Nagano Shiojiri, Nagano ~5.994 km Ohara Tunnel - Iida Line Akima Tunnel - Hokuriku Shinkansen 1997 TakasakiKaruizawa 8.295 km Gorigamine Tunnel - Hokuriku Shinkansen 1997 UedaChikuma 15.175 km Hokuriku Tunnel - Hokuriku Line Kubiki Tunnel - Hokuriku Line Kinuura Tunnel 1973 Handa Hekinan1.7 km length Nagasaki Tunnel - Nagasaki Main Line Masaki Tunnel - Sanriku Railway Akakura Tunnel - Hokuhoku Line Nabetateyama Tunnel - Hokuhoku Line Yakushitoge Tunnel - Hokuhoku Line Kirigatake Tunnel - Hokuhoku Line Karisaka Tunnel 1998 Chichibu, Saitama Yamanashi, Yamanashi Shin-Kobe Tunnel (expressway) 2012 Kobe cityMinoya Junction 8.5 km length Yumesaki Tunnel 2009 Sakishima islandYumeshima island, Osaka 2.138 km length Kan-Etsu Tunnel - Kan-Etsu Expressway 1991Minakami, Gunma Yuzawa, Niigata the longest road tunnel in Japan (~11 km) Hida Tunnel - Tōkai-Hokuriku Expressway 2008 Hida city, GifuShirakawa village, Gifu the second-longest road tunnel in Japan (~10.7 km) Tokyo Bay Aqua-Line bridge-tunnel 18 December 1997 Kawasaki, Kanagawa Kisarazu, Chiba the third-longest road tunnel in Japan Enasan Tunnel - Chūō Expressway 1985 Nagano Nakatsugawa City, Gifu the fourth-longest road tunnel in Japan (~8.6 km) Ikuta Tunnel - Musashino Line 1976Ikuta Station 10.359 km
See also List of tunnels by location