Shin-Noborikawa Tunnel
The 186th longest tunnel in the world
Shin-Noborikawa Tunnel (Shin-Noborikawa tonneru) is a tunnel on JR Hokkaido's Sekishō Line that runs between Shin-Yūbari Station, Yufutsu District and Shimukappu Station in Shimukappu, Hokkaido with total length of 5.825 km. It was built and completed in 1981.
Tunnel data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).