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Top 10 Longest Bridges in the World

Updated: Feb 14

1. Danyang-Kunshan Grand Bridge

The Danyang-Kunshan Grand Bridge holds the record for the longest bridge in the world with its 164,800 meters in length. Over 10,000 people were employed throughout its development, which started in 2006 and was finished in 2010 for a total of $8.5 billion. It was necessary to span a region studded with canals, rivers, lakes, and rice fields, which necessitated such an enormously long bridge. The world's longest bridge, which is a part of the Beijing-Shanghai high-speed rail line, is situated in Jiangsu province between Shanghai and Nanjing. It crosses the Yangcheng lake's waters for nine kilometers.

2. Changhua-Koahsiung Viaduct

The second-longest bridge in the world, the Changhua-Koahsiung Viaduct, is situated in Taiwan and is about seven kilometers shorter than the Danyang-Kunshan Grand Bridge. The 157,317-meter-long Changhua-Koahsiung viaduct is a crucial component of the Taiwan High-Speed Rail line. Given the unique geography between Baguazhang and Zuoying, this bridge, which was completed in 2007, was constructed under tight anti-seismic guidelines.

3. Cangde Grand Bridge

Cangde Grand Bridge: With 115,900 meters, Cangde Grand Bridge comes in third. This bridge is situated alongside the Beijing-Shanghai high-speed line, just like the Danyang-Kunshan Grand Bridge. The viaduct was finished in 2010, the same year as the biggest bridge in the world, and it contains a total of 3,092 pillars.

4. Tianjin Grand Bridge

Even the fourth-longest bridge in the world, the Tianjin Grand Bridge, is situated in Asia, once more in China, and is constantly connected to the railway system. It spans a distance of 113,700 meters between Langfang and Qingxian. The project started in 2006 and ended in 2010. In 2011, the bridge was officially opened.

5. Weinan Weihe Grand Bridge

Even if we are still in China for fifth place, the Weinan Weihe Grand Bridge is not connected to the viaducts' extensions. In actuality, the Weinan Weihe Grand Bridge is 79,732 meters long. Its construction was completed in 2008, giving it the distinction of being the world's longest bridge, albeit only for a short time. The Zhengzhou - Xian High-Speed Railway has this viaduct.

6. Hong Kong-Zhuhai-Macao Bridge

The Hong Kong-Zhuhai-Macao bridge, which was inaugurated in 2018, is a new entrant at sixth place. The Lingdingyang canal is crossed by this bridge, which links Hong Kong, Zhuhai, and Macao—the three most significant cities in the Pearl River delta. The bridge, which is 55,717 meters long, was finished in 2017 after eight years of construction. Some interesting facts: the bridge features an undersea tunnel that is about seven kilometers long and was constructed using 400,000 tonnes of steel. Although unofficial, the total cost of the project was close to $7 billion. One more interesting thing about this new entry: the bridge has a shape that is reminiscent of a traditional Chinese dragon.

7. Bang Na Expressway

Seventh position in the list goes to the Thai bridge known as the Bang Na Expressway. It is slightly shorter than the Hong Kong-Zhuhai-Macao Bridge at 54 kilometers. The railroad viaduct rises over miles and miles of dry ground, barring the crossing of a river. Louis Berger began designing the bridge in 1994, and it was finished in 2000. Up until 2004, it was the longest bridge in the world.

8. Beijing Grand Bridge

We go back to the Beijing-Shanghai high-speed railway to find the eighth-ranked Beijing Grand Bridge. This 48,153-meter-long railway viaduct was finished in 2010 and opened the following year.

9. Lake Pontchartrain Causeway

The first and only bridge in this ranking that is not in Asia is the Lake Pontchartrain Causeway. In reality, the Lake Pontchartrain Causeway is situated in Louisiana, America, halfway between Mandeville and Metairie. It completely traverses Lake Pontchartrain. In truth, there are two parallel bridges: the original, constructed in 1956 and measuring 38,400 meters long, and the second, finished in 1969 and measuring 15 meters longer and utilized for traffic heading south toward Metairie. The bridge is distinguished by a rotating part that permits the passage of large boats along the path to the north.

10. Wuhan Metro Bridge

We return to China and more specifically to the city of Wuhan with the 10th longest bridge in the world, the Wuhan Metro Bridge, to round out this ranking. The entire Line 1 of the city's metro system, or 37,788 meters, is made up of the Wuhan Metro Bridge, making it the longest continuous viaduct in the world. Wuhan is now China's fifth city with a subway system thanks to Line 1's construction in 2004.

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