See more longest bridge records: Guinness World Records.Modern engineering: How Would Engineers Build the Golden Gate Bridge Today?.In Jiaozhou, land bridges and sea tunnels make up parts of the overall structure. Guinness World Records decided to split the title into two parts, stating that the 26.4-mile (42.5-km) long Jiaozhou Bay Bridge is the longest bridge over water in aggregate, while the Pontchartrain is the longest continuous bridge, according to World Atlas. Louisiana's famous bridge faced a challenger in 2011, when China claimed that its Jiaozhou Bay Bridge was the longest spanning water. The bridges are supported by 9,500 concrete pilings, according to the American Concrete Institute. The causeway is actually two parallel bridges, with the longer of the two measuring close to 24 miles (39 km), according to Encyclopaedia Britannica. The world's longest continuous bridge over water is the Lake Pontchartrain Causeway in southern Louisiana. The Lake Pontchartrain Causeway is the world's longest continuous bridge over water.
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