Spans 5,811 feet (1,771 m). Completed 2008. New floating bridge SR 520: World’s longest floating bridge Vital regional link connects communities across Lake Washington Contractor Kiewit/General/Manson, A Joint Venture (KGM) began to remove the old SR 520 floating bridge from Lake Washington immediately after traffic switched over to the new floating bridge. He started a ferry service that continued to operate into the mid-1930s. The bridge carries the eastbound lanes of Interstate 90 across Lake Washington from Seattle to Mercer Island, Wash. To alleviate congestion on the south shore, toll collections were eliminated on the northbound span. The Lacey V. Murrow bridge (right) is the world's third-longest floating bridge at 6,603 feet. The world's longest floating bridge, a 230,000-ton ribbon of concrete spanning Lake Washington, is getting longer. [9] In 2017, the toll was raised to fund safety improvements on the bridge. Lake Pontchartrain Causeway then became the longest bridge over water (continuous)[3] while Jiaozhou Bay Bridge became the longest bridge over water (aggregate). As of 12 February 2016, the longest floating bridge is 2,349.55 m (7,708.49 ft) and was achieved by the Washington State Department of Transportation in Seattle, Washington, USA. Completed 2001. He started a ferry service that continued to operate into the mid-1930s. Four of the five longest floating bridges in the world are in Washington state. The new bridge opened to traffic on April 25, 2016, and is the longest floating span of highway in the world, at 7,708 feet. [55] In 1979, the longest floating bridge crossing salt water, the Hood Canal Bridge , was subjected to winds of 80 miles per hour (130 km/h), gusting up to 120 miles per hour (190 km/h). The world's longest floating bridge, the SR 520, just opened near Seattle, Washington. Sitting atop Lake Washington, the new State Route 520 is now the longest floating bridge in the world -- beating its predecessor, the old State Route 520, by 130 feet, the Associated Press reports. Prior to the causeway, residents of St. Tammany Parish used either the Maestri Bridge on U.S. Route 11 or the Rigolets Bridge on U.S. Route 90, both near Slidell, Louisiana; or on the west side, via U.S. Route 51 through Manchac, Louisiana.[11]. Like the Old London … The southern terminus of the causeway is in Metairie, Louisiana, a suburb of New Orleans. 29.07.2014 [4] At that time there was some controversy in the United States as supporters of the former holder of the record, the Lake Pontchartrain Causeway, disagreed with Guinness World Records not calling the causeway the longest. SR-520 Floating Bridge and Landings Project - Duration: ... TOP 10 LONGEST BRIDGES OF THE WORLD - Duration: 4:52. asad6351 Recommended for you. This past weekend, Seattle replaced one superlative piece of infrastructure with another. The 7,710-foot-long (2,350 m) floating span is the longest floating bridge in the world, as well as the world's widest measuring 116 feet (35 m) at its midpoint. A pontoon bridge from Punda to Otrabanda across the harbor of. Krämerbrücke, Erfurt, Germany. [4], Parallel bridges in Louisiana, United States, The southern end of the causeway at Metairie, Louisiana, in 1998, Learn how and when to remove this template message, Norfolk Southern Lake Pontchartrain Bridge, "Causeway lighting project cost double expectations", "Longest bridge over water (aggregate length)", "PILE RESTORATION OF THE LAKE PONTCHARTRAIN CAUSEWAY", "The History of the Lake Pontchartrain Causeway", "6 Die in Lake Pontchartrain as Bus Plunges Off Bridge Hit by Barges", "Toll Tags | Causeway Bridge Tolls & Fees", "Causeway refuses to relinquish 'world's longest bridge' title to China", Template:Attached KML/Lake Pontchartrain Causeway, https://web.archive.org/web/20090806091006/https://library.rice.edu/collections/WRC/finding-aids/manuscripts/0488, List of medieval stone bridges in Germany, https://en.wikipedia.org/w/index.php?title=Lake_Pontchartrain_Causeway&oldid=997464542, Buildings and structures in Jefferson Parish, Louisiana, Buildings and structures in St. Tammany Parish, Louisiana, Transportation in the New Orleans metropolitan area, Transportation in St. Tammany Parish, Louisiana, Transportation in Jefferson Parish, Louisiana, Tourist attractions in Jefferson Parish, Louisiana, Tourist attractions in St. Tammany Parish, Louisiana, Infobox mapframe without OSM relation ID on Wikidata, Pages using infobox bridge with clearance, Pages using infobox bridge with empty coordinates parameter, Articles needing additional references from August 2014, All articles needing additional references, Creative Commons Attribution-ShareAlike License, A virtual re-creation of the causeway appears in the 2004 video game, A number of scenes in the 2020 superhero film, This page was last edited on 31 December 2020, at 17:00. Schwager Davis, Inc. began work in 2016 on the complex de-commissioning of the SR 520 Floating Bridge in Seattle, Washington. Holt will assist the Norwegian Public Roads Administration (NPRA) to find the most advantageous bridge solution for the European Route 39 (E39) across Bjørnafjorden (the Bear Fjord) in Hordaland. The modern causeway started to take form in 1948 when Ernest M. Loeb Jr. envisioned the project. Until 1999, tolls were collected from traffic going in each direction. Original bridge completed in 1940 but sank in 1990 because of weather and mishaps in maintenance. Completed 1875. At an impressive 7,580 ft., the SR 520 is the longest floating bridge in the world. The total driving distance on continuous elevated roadway is over 38 miles (61 km). In July 2011 the Jiaozhou Bay Bridge in China was named by Guinness World Records as the 'longest bridge over water'. It opened in 1956 at a cost of $46 million. Lake Pontchartrain Causeway then became the longest bridge over water (continuous)[3] while Jiaozhou Bay Bridge the longest bridge over water (aggregate).[4]. The causeways have never sustained major damage of any sort from hurricanes or other natural occurrences, a rarity among causeways. Now, its replacement is even longer, by about 130 feet. The Jiaozhou Bay Bridge spans water for only 25.9 km (16.1 mi). Floating concrete sounds tricky enough, but try floating 77 concrete pontoons, 23 of which weigh 11,100 tons each. Completed 1992. SR 520: De-tensioning of the World’s Longest Post Tensioning (PT) Tendons. After Hurricane Katrina on August 29, 2005, videos collected showed damage to the bridge. When crossing this bridge one can get a very beautiful view of the Demerara river. Completed 1989. With the I-10 Twin Span Bridge severely damaged, the causeway was used as a major route for recovery teams staying in lands to the north to get into New Orleans. Spans 4,086 feet (1,245 m) (the floating bridge part). [5] The two bridges feature a bascule, which spans the navigation channel 8 miles (13 km) south of the north shore. Its predecessor on Lake … Built on the Zhoushan Archipelago, … If i am not mistaken the Demerara Harbour bridge is the longest floating bridge in the world! Spans 2,100 feet (640 m). Tolls were reinstated by mid-October of that year. The Lake Pontchartrain Causeway (French: Chaussée du lac Pontchartrain), sometimes only The Causeway,[2] is a fixed link composed of two parallel bridges crossing Lake Pontchartrain in southern Louisiana, United States. It is 130 feet longer, has a bridge … Norway’s highways authority has selected its preferred design concept for what will be the world’s longest floating bridge, over the 550-meter-deep Bjørna fjord south of Bergen. In May 1999, the standard tolls for cars changed from $1.50 in each direction to a $3 toll collected on the North Shore for southbound traffic. Changhua-Koahsiung Viaduct, Taiwan (157,317 Meters) The Changhua-Koahsiung Viaduct is the … This page was last edited on 26 August 2020, at 22:22. [12] Structural foundations remained intact. Spans 7,710 feet (2,350 m). Completed 1994. [4] Following this controversy in July 2011, Guinness World Records created two categories for bridges over water: continuous and aggregate lengths over water. [10], The opening of the causeway boosted the fortunes of small North Shore communities by reducing drive time into New Orleans by up to 50 minutes, bringing the North Shore into the New Orleans metropolitan area. The result is a bridge that, at 7,708 feet (about 1.5 miles), has earned a place in the Guinness World Records as the longest floating bridge in the world. 4:52. It is an impressive example of the health of the bridge replacement sector, particularly in the US, leaving it well placed for growth. The longest floating bridge in the world. In the 1920s, a proposal called for the creation of artificial islandsthat would then be linked by a series of bridges. [8], A parallel two-lane span, 1/100th of a mile (15 m) longer than the original, opened on May 10, 1969, at a cost of $30 million. Length: 259 feet. World's longest and widest floating bridge. Washington is currently host to four of the five longest floating bridges in the world; the William A. Bugge Bridge which crosses Hood Canal (6,521 feet), and three bridges that cross Lake Washington: the Lacey V. Murrow I-90 bridge (6,620 feet), the Homer M. Hadley I-90 br… The storm surge was not as high under the causeway as it was near the I-10 Twin Span Bridge, and damage was mostly limited to the turnarounds. No one had ever attempted detensioning such long tendons. A new floating bridge has been erected over, The bridge opened to the public on 16 July 2007; two weeks after applying the. All 31 The financing for this plan would come from selling home sites on the islands. Louisiana is also home to the Norfolk Southern Lake Pontchartrain Bridge, which at 5.8 miles (9.3 km) is one of the longest railway bridges in the United States. The U.S. state of Washington is home to some of the longest permanent floating bridges in the world, and two of these failed in part due to strong winds. [7], Since its construction, the causeway has operated as a toll bridge. Supported by 77 pontoons, the new Evergreen Point Floating Bridge has a span of 7,710 feet (2,350 m), 130 feet longer than the bridge it replaced. Spans 1,200 feet (366 m). World… [6], The original causeway was a two-lane span, measuring 23.86 miles (38.40 km) in length. This is a list of the world's longest bridges more than three kilometres … The 10 Longest Floating Bridges in the World Lacey V. Murrow Memorial Bridge, Seattle, U.S.A, 2,020 meters, 1940. The financing for this plan would come from selling home sites on the islands. Completed 1963. Governor Albert D. Rosellini Bridge — Evergreen Point, SR 520 Albert D. Rosellini Evergreen Point Floating Bridge, https://en.wikipedia.org/w/index.php?title=List_of_pontoon_bridges&oldid=975134831, Short description is different from Wikidata, Creative Commons Attribution-ShareAlike License, Constructed of hollow concrete pontoons, it was replaced by a new bridge in 1964, The new floating bridge replaced an older one and spanned the. Completed 2016. Since 1969, it was listed by Guinness World Records as the longest bridge over water in the world; in 2011, in response to the opening of the longer Jiaozhou Bay Bridge in China, Guinness World Records created two categories for bridges over water: continuous and aggregate lengths over water. The longest floating bridge in the world The world's longest floating bridge is now under construction in Seattle – a masterpiece of engineering and logistics. Its pontoons are 60 feet wide and support a roadway with three lanes of eastbound traffic. In spring 2016, Jakobsen and her team carried out a six week measurement campaign in the Bjørnafjord, in collaboration with the … The bridges are supported by 9,500 concrete pilings. And smarter. The "Coathanger" of steel that crosses the Sydney Harbour has a longer history … However, Guinness World Records, using the criteria of measurement that included aggregate structures, such as land bridges on the ends and an under-sea tunnel, stated that the Jiaozhou Bay Bridge is 42.6 km (26.5 mi) long. The Lake Pontchartrain Causeway is one of seven highway spans in Louisiana with a total length of 5 miles (8.0 km) or more. Spans 6,074 feet (1,851 m). Spans 3,061 feet (933 m). Xihoumen Bridge, Zhoushan, Zhejiang Province, P.R. The free-floating bridge has the longest laterally-unsupported span in the world. The idea of a bridge spanning Lake Pontchartrain dates back to the early 19th century and Bernard de Marigny, the founder of Mandeville. Built to replace the 1963 bridge of the same name. The longer of the two bridges is 23.83 miles (38.35 km) long. It is sometimes referred to as the Salhus Bridge. Due to his lobby… The modern causeway started to take form in 1948 when Ernest M. Loeb Jr. envisioned the project. Munich Re, with its wealth of expertise, is involved in insuring the project. [13] Supporters made this claim based on its own definition i.e., the length of a bridge physically over water and concluded that the Lake Pontchartrain Causeway spans 38.28 km (23.79 mi)[13] and was therefore the longest. Aas-Jakobsen, COWI and Multiconsult with Johs. Due to his lobbying and vision, the Louisiana Legislature created what is now the Causeway Commission. These pontoon bridges are semi-permanent floating bridges located throughout the world. Built on logs in 1820, then upon tarred barrels in 1884, rebuilt using plastic barrels filled with styrofoam in 1978, carries light automobile traffic.