Hvalfjörður Tunnel
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Hvalfjörður Tunnel (Hvalfjarðargöng in Icelandic) is a road tunnel under the Hvalfjörður fjord in Iceland and a part of the Hringvegur. It is 5,762m long and reaches depth of 165m below sea level. Opened in 1998 it shortens the distance from Reykjavík to the western and northern parts of the island by 62km. Passing the fjord now takes 7 minutes instead of about an hour before.