is a tunnel on Iida Line that runs from Misakubo Station and Ōzore Station in Hamamatsu city, Shizuoka Prefecture with total length of 5.063 km. It was built and completed in 1955. Ohara 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 Ohara tunnel 大原トンネル