The Storfjord Bridge () is a proposed
suspension bridge that would span the
Storfjorden in
Sunnmøre,
Norway
Norway, officially the Kingdom of Norway, is a Nordic countries, Nordic country located on the Scandinavian Peninsula in Northern Europe. The remote Arctic island of Jan Mayen and the archipelago of Svalbard also form part of the Kingdom of ...
. If built, it would be long and have a main span of . This would make it the longest spanned bridge in the world, easily surpassing the
1915 Çanakkale Bridge, which has a main span of . The plans have been developed by
Aas-Jakobsen for a Storfjordsambandet, a company which aims to toll finance the bridge. According to Rolf M. Larssen of Aas-Jakobsen, there is a larger challenge securing sufficient funding than technically building the bridge. It is estimated to cost 4.3 billion
Norwegian krone
The krone (, currency sign, abbreviation: kr (also NKr for distinction); ISO 4217, code: NOK), plural ''kroner'', is the currency of the Kingdom of Norway (including List of possessions of Norway, overseas territories and dependencies). It was t ...
.
History
In a report made by Aas-Jakobsen, two crossings were discussed, one slightly in-fjord from the ferry and one which would cross from
Sykkylven Municipality to
Ã…lesund Municipality. The bridge would have a single main cable and a split
bridge beam. The cable would run down the centre of the bridge, with the lanes on each side of an open area with cross-sections. While this method is more expensive, it allows for a more aerodynamic bridge. The bridge would have two pylons, with the road lanes crossing on the outside of the pylons. Each pylon would be tall. The pylons would be round with a diameter of between . The northern pylon would be anchored in bedrock, while the southern pylon would be anchored in a
caisson in bedrock, located below
mean sea level
A mean is a quantity representing the "center" of a collection of numbers and is intermediate to the extreme values of the set of numbers. There are several kinds of means (or "measures of central tendency") in mathematics, especially in statist ...
. The distance between the middle of the lanes would be at the pylons, and at the middle of the bridge. The main cable would be above the sea at the pylons and above the sea at the middle. The bridge allows a clearance below of , wide.
The crossing would establish a
fixed link for
Sykkylven Municipality and
Stranda Municipality to
Ã…lesund Municipality. The service is currently operated by the
Ørsneset–Magerholm Ferry on
National Road 60, which had an
average daily traffic of 1967 cars and 175 in 2009, making it the fifth-most trafficked ferry service in Norway. Former proposals for the crossing has included a
submerged floating tunnel and a
pontoon bridge
A pontoon bridge (or ponton bridge), also known as a floating bridge, is a bridge that uses float (nautical), floats or shallow-draft (hull), draft boats to support a continuous deck for pedestrian and vehicle travel. The buoyancy of the support ...
, although both have since been discarded. The design is part of a project initiated by the
Norwegian Public Roads Administration to develop extreme technology which would make it possible to make E39, the Coastal Highway, ferry free.
Official plans by the Road Administration have suggested that a different bridge,
Sulafjord Bridge, over
Sulafjorden further west to be built instead of the Storfjord Bridge.
E39 Sulafjorden, fjordkrysning
/ref> This bridge is still of a similar size.
See also
* List of longest suspension bridge spans
*European route E39
European route E39 is the designation of a north–south road in Norway and Denmark from Klett, just south of Trondheim (city), Trondheim, to Aalborg via Bergen, Stavanger and Kristiansand. In total, there are nine ferries, more than any other ...
References
External links
European route E39
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Proposed bridges in Norway
Road bridges in Møre og Romsdal
Sykkylven