Oslofjord Tunnel
The Oslofjord Tunnel () is a subsea road tunnel which traverses the Oslofjord, connecting Hurum and Frogn in Norway. Carrying three lanes, the long tunnel reaches a depth of below mean sea level. The tunnel has a maximum gradient of seven percent. It acts as the main link connecting eastern and western Viken county, supplementing the Moss–Horten Ferry which runs further south. The tunnel is since 2018 a part of European route E134, until 2018 it was part of National Road 23.
The crossing was originally served by the Drøbak–Storsand Ferry, which commenced in 1939. Plans for a fixed link were launched in 1963, originally based on two bridges which would connect to Håøya. Plans resurfaced in the early 1980s with the advent of subsea tunneling technology and the Oslo Airport location controversy, which proposed airports in Hurum, Ås and Hobøl. Even though Gardermoen was ultimately built as the airport, the tunnel had raised sufficient support to be built irrespectively. Parliament gave approval on 13 December 1996 and construction started on 14 April 1997. The tunnel was official opened on 29 June 2000 and was financed in part by a toll, collected by Bompengeselskapet Oslofjordtunnelen at a toll plaza in Frogn. In 2014, the manual toll station was replaced by an automatic station. Since 30 August 2016, it is free to pass through the tunnel.
The tunnel was flooded in 2003 and 2008 and experienced a landslide in 2003. All of these incidents resulted in the tunnel being closed for weeks. There have been two major truck fires, one in 2006 and one in 2011. After the latter incident, the tunnel has been closed for heavy traffic exceeding 7.5 tonnes. In an effort to eliminate the problem, the Public Roads Administration has proposed building a second tube.
Q1317590
subsea road tunnel
Concept
Q667456
Oslofjord
LOC
Q488611
Hurum
LOC
Q57083
Frogn
LOC
Q20
Norway
LOC
Q125465
mean sea level
Concept
Q56407178
Viken county
Concept
Q4992404
Moss–Horten Ferry
MISC
Q1589334
European route E134
LOC
Q6397233
National Road 23
LOC
None
Drøbak–Storsand Ferry
UNK
Q4573190
Håøya
LOC
Q7107006
Oslo Airport location controversy
UNK
Q54062
Ås
LOC
Q109475
Hobøl
LOC
Q210559
Gardermoen
LOC
Q109016
Parliament
MEDIA
Q16939396
toll
Concept
Q374533
Oslofjord Tunnel
LOC
2018-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
2018
DATE
2018-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
2018
DATE
1939-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
1939
DATE
1963-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
1963
DATE
1980-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
1980
DATE
1996-12-13T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
13 December 1996
DATE
1997-04-14T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
14 April 1997
DATE
2000-06-29T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
29 June 2000
DATE
2014-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
2014
DATE
2016-08-30T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
30 August 2016
DATE
2003-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
2003
DATE
2008-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
2008
DATE
2003-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
2003
DATE
2006-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
2006
DATE
2011-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
2011
DATE
+134^^http://www.w3.org/2001/XMLSchema#decimal
134
NUMBER
+23^^http://www.w3.org/2001/XMLSchema#decimal
23
NUMBER
+7.5^^http://www.w3.org/2001/XMLSchema#decimal
7.5
NUMBER
instance of
crosses
located in the administrative territorial entity
located in the administrative territorial entity
country
carries
date of official opening
country
country
country
part of