Atlantic Ocean Tunnel

{{Short description|Road passage in western Norway}}

{{for|the theoretical transatlantic tunnel|Transatlantic tunnel}}

{{Infobox tunnel

|name = Atlantic Ocean Tunnel
Atlanterhavstunnelen

|image = Atlanterhavstunnelen logo.png

|caption =

|location = Nordmøre, Norway

|coordinates = {{coord|63|07|32|N|07|43|26|E|type:landmark_region:NO|name=Atlantic Ocean Tunnel east entrance}}

|route = {{jct|country=NOR|Rv|64}}

|map = {{Infobox mapframe|wikidata=yes|zoom=11|marker=tunnel|coord={{coord|63.1275246|7.675065994}}}}

|status =

|start = Averøya island
({{coord|63|6|30|N|7|38|5|E|type:landmark_region:NO|name=Atlantic Ocean Tunnel west entrance|display=inline}})

|end = Gomalandet, Kristiansund
({{coord|63|7|32|N|7|43|26|E|type:landmark_region:NO|name=Atlantic Ocean Tunnel east entrance}})

|startwork = 2006

|opened = {{start date|df=yes|2009|12|19}}

|close =

|owner =

|operator =

|traffic = Automobile

|character =

|toll = no

|vpd =

|construction =

|length = {{convert|5727|m}}

|lanes =

|speed =

|hielevation =

|lowelevation = {{convert|-250|m}}

|height =

|width =

|grade = 10% (maximum)

}}

The Atlantic Ocean Tunnel ({{langx|no|links=no|Atlanterhavstunnelen}}) is an undersea tunnel that is part of Norwegian County Road 64 which connects Kristiansund Municipality to Averøy Municipality in Møre og Romsdal county, Norway. The eastern end of the tunnel is on Kirkelandet island in the town of Kristiansund and the western end of the tunnel is on the island of Averøya, just west of the village of Sveggen. The {{convert|5727|m|adj=on}} long tunnel runs beneath the Bremsnesfjorden, reaching a depth of {{convert|250|m}}, making it one of the deepest undersea tunnels in the world.

Construction began in 2006, and the tunnel opened on 19 December 2009, later than initially estimated. Breakthrough was in March 2009. Problems with water leaks caused delays and cost overruns.{{Cite web |title=Om Atlanterhavstunnelen |url=http://85.200.219.104/Om-Atlanterhavstunnelen-301.aspx |url-status=dead |archive-url=https://web.archive.org/web/20110819201925/http://85.200.219.104/Om-Atlanterhavstunnelen-301.aspx |archive-date=2011-08-19 |access-date=2010-11-20 |publisher=Atlanterhavstunnelen AS |language=Norwegian}}{{Cite web |title=Atlantic Ocean Tunnel |url=http://www.vegvesen.no/Vegprosjekter/atlanterhavstunnelen/In+English/The+Atlantic+Ocean+Tunnel |url-status=dead |archive-url=https://web.archive.org/web/20101111045157/http://www.vegvesen.no/Vegprosjekter/atlanterhavstunnelen/In%2BEnglish/The%2BAtlantic%2BOcean%2BTunnel |archive-date=11 November 2010 |access-date=2010-11-20 |publisher=Vegvesen.no}}

The name of the tunnel comes from its connection of two islands located at the open Atlantic Ocean, and serves as an extension of the Atlantic Ocean Road ({{langx|no|Atlanterhavsveien}}), a popular tourist attraction. The road runs over a series of small islands with views of sea, fjord, and mountains, connecting Averøya to the mainland near the town of Molde.{{cite SNL|Atlanterhavstunnelen|Atlanterhavstunnelen|2025-03-08|Jarslett|Yngve|2024-11-26}}

As of 1 July 2020, the tunnel is no longer a toll tunnel and driving through the tunnel is free for all types of vehicle.{{Cite news |last=Kjellstadli Korsnes |first=Malin |last2=Jenssen Stenberg |first2=Marius André |date=2020-07-01 |title=Her forsvinn landets siste bemanna bomstasjon |url=https://www.nrk.no/mr/landets-siste-bemanna-bomstasjon-blei-lagt-ned-1.15075106 |access-date=2025-03-08 |work=NRK |language=no}}