Bergsøysund Bridge
Encyclopedia
Bergsøysund Bridge is a pontoon bridge
Pontoon bridge
A pontoon bridge or floating bridge is a bridge that floats on water and in which barge- or boat-like pontoons support the bridge deck and its dynamic loads. While pontoon bridges are usually temporary structures, some are used for long periods of time...

 that crosses the Bergsøysundet strait
Strait
A strait or straits is a narrow, typically navigable channel of water that connects two larger, navigable bodies of water. It most commonly refers to a channel of water that lies between two land masses, but it may also refer to a navigable channel through a body of water that is otherwise not...

 between the islands of Aspøya
Aspøya
Aspøya is an island in the municipality of Tingvoll in Møre og Romsdal county, Norway. It is located between the Freifjorden and the Tingvollfjorden. The highway crosses Aspøya and connects it to the nearby island of Bergsøya to the west by the Bergsøysund Bridge–part of the Krifast...

 (in Tingvoll
Tingvoll
Tingvoll is a municipality in Møre og Romsdal county, Norway. It is part of the Nordmøre region. The administrative centre is the village of Tingvoll. Other villages include Meisingset, Kvisvik, and Torjulvågen.-General information:...

) and Bergsøya
Bergsøya
Bergsøya is an island in the municipality of Gjemnes in Møre og Romsdal county, Norway. The island is located near the junctions of the Freifjorden, Kvernesfjord, and Tingvollfjorden. The highest point on the island is the tall mountain Varden....

 (in Gjemnes
Gjemnes
Gjemnes is a municipality in Møre og Romsdal county, Norway on the Romsdal peninsula. It is part of the Nordmøre region. The administrative centre is Batnfjordsøra, which lies along the Batnfjorden and is a former steamship landing place...

) in Møre og Romsdal
Møre og Romsdal
is a county in the northernmost part of Western Norway. It borders the counties of Sør-Trøndelag, Oppland and Sogn og Fjordane. The county administration is located in Molde, while Ålesund is the largest city.-The name:...

 county, Norway
Norway
Norway , officially the Kingdom of Norway, is a Nordic unitary constitutional monarchy whose territory comprises the western portion of the Scandinavian Peninsula, Jan Mayen, and the Arctic archipelago of Svalbard and Bouvet Island. Norway has a total area of and a population of about 4.9 million...

. The bridge is 931 metres (3,054.5 ft) long, the longest span is 106 metres (347.8 ft), and the maximum clearance to the sea is 6 metres (19.7 ft). The bridge has 13 spans.

Bergsøysund Bridge was opened in 1992. It is part of the Krifast
Krifast
The Kristiansund Mainland Connection is a road system on the highways and that connects the municipality of Kristiansund to the islands of Frei, Bergsøya, and Aspøya to mainland Norway. Krifast opened in 1992 and consists of of road and of bicycle paths...

 system, the town of Kristiansund
Kristiansund
Kristiansund is a city and municipality on the western coast of Norway, in the Nordmøre district of Møre og Romsdal county. It was officially awarded township status in 1742, and it is still the major town for the region. The administrative center of the municipality is the city of Kristiansund...

's road connection to the mainland. The bridge cost .

Construction

Floating bridge/Pontoon Bridge
Pontoon bridge
A pontoon bridge or floating bridge is a bridge that floats on water and in which barge- or boat-like pontoons support the bridge deck and its dynamic loads. While pontoon bridges are usually temporary structures, some are used for long periods of time...

 construction has a long history in military and civilian applications on every continent except Antarctica. According to the engineers who designed this bridge, it was designed using recent American technology for floating bridges, combined with Norwegian technology for offshore platforms. The bridge designers researched other bridges in the world and traveled to the state of Washington in the United States
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...

 to visit the Homer M. Hadley Memorial Bridge
Homer M. Hadley Memorial Bridge
The Third Lake Washington Bridge, officially the Homer M. Hadley Memorial Bridge, is the fifth-longest floating bridge in the world, at 5,811 feet...

 and the Hood Canal Bridge
Hood Canal Bridge
The Hood Canal Bridge is a floating bridge located in the U.S. state of Washington that carries Washington State Route 104 across Hood Canal and connects the Olympic and Kitsap Peninsulas. At long, The Hood Canal Bridge (officially William A. Bugge Bridge) is a floating bridge located in the U.S....

—two floating bridges. The continuous floating concrete
Concrete
Concrete is a composite construction material, composed of cement and other cementitious materials such as fly ash and slag cement, aggregate , water and chemical admixtures.The word concrete comes from the Latin word...

 structure used in the Washington bridges was ultimately ruled out in favor of the discrete floating concrete pier design. This design afforded: 1) an elevated roadway that reduced traffic hazards in storms, 2) a reduction in corrosion
Corrosion
Corrosion is the disintegration of an engineered material into its constituent atoms due to chemical reactions with its surroundings. In the most common use of the word, this means electrochemical oxidation of metals in reaction with an oxidant such as oxygen...

 of the bridge deck
Bridge deck
Bridge deck may refer to* Deck , the deck of a bridge** Orthotropic deck* Bridge , the area of a ship from which it is commanded* Deck of cards in a game of bridge* Deck department an organizational unit aboard naval and merchant ships...

, and 3) improved passage of water beneath the bridge thereby supporting native species.

See also

  • List of bridges in Norway
  • List of bridges in Norway by length
  • List of bridges
  • List of bridges by length
  • Gjemnessund Bridge
    Gjemnessund Bridge
    The Gjemnessund Bridge is a suspension bridge that crosses the Gjemnessundet strait between the mainland and the island of Bergsøya in the municipality of Gjemnes in Møre og Romsdal county, Norway. The long bridge is the longest suspension bridge in Norway, although it does not have the longest...

  • Straumsund Bridge
    Straumsund Bridge
    Straumsund Bridge is a bridge that crosses Straumsundet between the mainland and Aspøya in Møre og Romsdal county in Norway. The bridge is 412 metres long, and the longest span is 146 metres.Straumsund Bridge was opened in 1991...

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