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Tunnels in Nagano Prefecture
page 1
Enasan Tunnel
The total length is 8,649m for the up line and 8,489m for the down line. When it opened in 1975, it was the longest road tunnel in Japan and the second longest road tunnel in the world. As of November 2017, it is the 6th longest tunnel after Yamate
Tunnels in Nagano Prefecture — category · Vinony