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Operatunnelen

The 192nd longest tunnel in the world

5.77 km · Length

The Opera Tunnel (Operatunnelen) is a motorway tunnel system under Oslo city center between Filipstad in the west and Ryen in the east. The tunnel consists of four parts built at different times. From west to east are the Festning Tunnel and Bjørvika Tunnel, which are part of European route E18, and the Ekeberg Tunnel and Svartdal Tunnel, which make up a branch of European Route E6. Between the Bjørvika Tunnel and Ekeberg Tunnel is a 111-metre (364 ft) long stretch in the open. The signposted length is 5,767 m (3.58 mi) and the tunnels have a combined length of 15,938 m (9.903 mi).

Tunnel data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).

Other tunnels in Norway