The Sotra Bridge () is a suspension bridge which crosses Knarreviksundet between Knarrevik in Øygarden Municipality and Drotningsvik on the mainland of Bergen Municipality in Vestland county, Norway. It carries two road lanes and two narrow pedestrian paths of National Road 555, providing a fixed link for the archipelago of Sotra. The bridge is long, has a main span of and a clearance of . In 2007, it had an average 25,494 vehicles per day. The bridge was brought into use on 11 December 1971, although not officially opened until 1972. It cost 40 million Norwegian krone (NOK) to build, of which NOK 23.5 million was paid for with tolls, which were collected until 1983. When it opened, it was the longest suspension bridge in Norway, but is now the seventh longest. There exist plans to build a second bridge to either expand the road to four lanes, or carry a proposed extension of the Bergen Light Rail. Alternatively, a subsea tunnel could be built to carry a motorway. Specifications The concrete bridge crosses Knarreviksundet, which separates the island of Litlesotra, part of the Sotra archipelago, from the mainland and Bergen. The western part of the bridge, on Sotra, lies in Knarrevik in Fjell, while the eastern part lies in Drotningsvik in Bergen. The bridge is long with a main span of . It carries two lanes of National Road 555, with a combined width of . In addition, it has a wide sidewalk on each side. In 2009, it had an annual average daily traffic of 25,494 vehicles. Because it is located across the sound, the bridge is vulnerable to winds from the north and south. It is closed whenever the wind speed exceeds . History Planning The first discussion of a bridge in a public forum was in 1954, when Anton P. Torsvik proposed a bridge to the major and municipal engineer of Fjell. Torsvik lived in Oslo and had worked with public relations for various other bridge projects. The issue was discussed in the municipal councils of Fjell and Sund, but they both concluded that there were more pressing needs on the islands' road network, so they did not want to prioritize a bridge. National Road 555 was completed in 1957, and the following years various road projects were completed. Another person who took up the initiative in the late 1950s was Rangvald Iversen, who was plant