Rivers Review
Aioi Tunnel
2026-11-15 10:07:27 · The Daily Ledger
is a railway tunnel on West Japan Railway Company's Sanyo Shinkansen line located between Aioi Station, Hyogo Prefecture and Okayama Station, Kita-ku, Okayama city in Okayama Prefecture with total length of . It was built and completed in 1975.
In December 2010, NTT Docomo mobile phone service area covers 14 tunnels on the Sanyo Shinkansen between Himeji and the Okayama prefecture border, including Aioi 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 proposed undersea tunnel between Rusia and Japan
Bohai Strait tunnel proposed undersea tunnel in Yellow Sea, China
References
External links
Mapion maps
Yahoo maps
Aioi tunnel
相生(大津)トンネルのビデオ
Railway tunnels in Japan
Tunnels completed in 1975
