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The Bømla Bridge ((ノルウェー語:Bømlabrua)) is a suspension bridge which crosses Spissøysundet between the islands of Nautøy in Stord and Spissøy in Bømlo, Norway. The bridge is long, has a main span of and a clearance below of . It carries two lanes of County Road 542 (former National Road 542) and a combined pedestrian and bicycle pathway. It is part of the Triangle Link, a fixed link which connects Stord to Bømlo, and both to the mainland at Sveio. Plans for a crossing arose in the 1960s, and was until the 1990s planned as a pontoon bridge further north. The Bømla Bridge entered the plans after the decision to combine the crossing with the Bømlafjord Tunnel. Construction started in 1999; the bridge cost 342 million Norwegian krone (NOK) and was opened for use on 30 April 2001. The bridge is a toll road. ==Background== The motivation for the Triangle Link was the desire to have a fixed link between the islands of Stord and Bømlo. The first documented proposals were made in the 1960s and involved building a pontoon bridge across Stokksundet, inspired by the plans to build what would become the Nordhordland Bridge north of Bergen. In 1973, the municipal councils of Bømlo, Stord and Fitjar decided to launch a planning process, which concluded that a pontoon bridge between Sørstokken and Foldrøyholmen would be optimal. The report also considered bridges across the Fitjar Archipelago and a crossing via Spissøy and Føyno. There were protests from the shipping industry, which wanted to continue to use the strait for ship traffic.〔Hauge: 32〕 The islands were connected with a network of five ferry services: Skjersholmane–Valevåg connected Stord and Sveio, Skjersholmane–Utbjoa connected Stord and Vindafjord, Sagvåg–Siggjarvåg connected Stord and Bølmo, and Bømlo was connected to the mainland both by the Mosterhamn–Valevåg Ferry and the Langevåg–Buavåg Ferry.〔Hauge: 100〕 Plans for Stord Airport, Sørstokken were launched in the early 1980s. Thus the plans for a bridge crossing Stokksundet were again raised in 1982, this time by the industry on Bømlo, who would have to travel by ferry to reach the new airport. A committee was established in May 1983, which gave Engineer Harald Møyner the assignment of producing a new report. He launched three proposals: a pontoon or suspension bridge between Foldrøyholmen and Litlaneset; a suspension bridge between Setraneset and Sokkbleikjo, which would terminate just south of the new airport; and a combined fixed link between Spissøy and Digernes, without passing via the Fitjar Archipelago. The latter proposal was the first time a fixed link to the mainland was proposed.〔Hauge: 33〕 The Civil Aviation Administration protested against a possible suspension bridge near the airport, but stated that one further away would be fine.〔Hauge: 34〕 Surveys of traffic patterns on Bømlo were undertaken by Hordaland Public Roads Administration in 1984. Based on the result of the surveys and other feedback, the agency stated that it preferred a pontoon bridge between Foldrøyholmen and Sørstokken, north of the ferry between Bømlo and Stord. It was estimated to cost NOK 190 million, in addition to auxiliary roads for NOK 40 million. In 1982, plans were launched for a fixed link to the mainland further south, which would include a bridge over Digernessundet, a causeway and low bridge across Spissøysundet and a low bridge over Gassasundet. In addition, a tunnel would have to be built from Føyno to Sveio. This proposal was similar to the finalized Triangle Link.〔 In 1985, an all-tunnel proposal, following the same route, was proposed.〔 Hordaland Public Roads Administration stated that the proposals were unrealistic. The limited company Ytre Sunnhordland Bru- og Tunnelselskap AS (SBT) was founded in October 1986 by the municipalities of Bømlo, Stord, Fitjar and Sveio, Hordaland County Municipality and five banks.〔Hauge: 35〕 The Public Road Administration recommended a bridge solution in December 1986.〔Hauge: 36〕 SBT changed its name to Sunnhordland Bru- og Tunnelselskap, and a majority of the board shifted towards being in favor of a fixed link.〔Hauge: 37〕 The Norwegian Coastal Administration stated that they would not allow a pontoon bridge.〔Hauge: 38〕 On 26 June 1987, SBT decided to work towards permission to collect advanced tolls on the ferry services.〔Hauge: 39〕 The board unanimously supported the triangular proposal on 16 September, which was estimated to cost NOK 660 million.〔Hauge: 40〕 This was criticized by Hordaland Public Roads Administration, who stated that it would take longer time to plan, and thus complete, the Triangle Link.〔Hauge: 42〕 From 1988, environmentalists started actively opposing the Triangle Link. The most active were the local chapter of the Norwegian Society for the Conservation of Nature and Nature and Youth, who stated that the road would have serious consequences for the local boat traffic to the recreational islands of Føyno and Nautøy. Instead, they recommended that the municipalities chose a pontoon bridge.〔Hauge: 49〕 Another opponent to the project was the Action Committee Against a Hasty Construction of the Triangle Link, who argued to delay the decision until after the 1991 municipal elections, to ensure that the municipal councils had backing in the public.〔Hauge: 51〕 Gisle Tjong stated that the risk in the project was large and that it was uncertain how long the tolls would last: they could just as well be 60 as 15 years. He instead wanted to collect tolls in advance.〔Hauge: 52〕 The Triangle Link was approved by the various municipal councils in February and March 1988.〔Hauge: 44〕〔Hauge: 45〕 Hordaland Public Roads Administration still supported a pontoon bridge, and stated that two and a half years of work on a master plan had been wasted. A new master plan for the Triangle Link was published in early 1989.〔Hauge: 46〕 During late 1989, advance tolls on the ferries was approved by the municipal councils and the county council. They recommended that collection start on 1 July 1990, but this was not immediately supported by the government.〔Hauge: 47〕 In July 1991, the master plan was passed by the Council of State.〔Hauge: 59〕 On 10 December 1992, Parliament approved advanced payment of tolls on the ferry, which were made effective from 1 January 1993. Ticket prices increased with between NOK 10 and 12. This resulted in protests from the ferry employees who stated that they would have to collect the tolls which would remove their jobs.〔Hauge: 60〕 Work on the development plan started in 1992. It included safety and environmental improvements which increased the project's cost by NOK 200 million.〔 In May 1994, the plans was made subject to consultative statements.〔 On 11 June 1996, Parliament approved with 144 against 20 votes to build the Triangle Link.〔Hauge: 64〕 The original name proposal for the bridge was ; this was later changed to after input from the municipal councils and name committees.〔Hauge: 68〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Bømla Bridge」の詳細全文を読む スポンサード リンク
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