Sandvika Tunnel
The 508th longest tunnel in the world
The Sandviksås Tunnel (Sandviksåstunnelen) is the name of a road tunnel that runs through the hill Sandviksåsen east of Sandvika in Norway. It forms a part of the Norwegian National Road 164, and near its northern entrance lies Sandvika Station. It was opened in 1991.
Tunnel data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).