Top 10 bridges In The World

 



1. THE DANYAND-KUNSHAN GRAND BRIDGE,CHINA

This bridge was completed a decade ago in 2010 and opened in 2011. It has held the record for the world’s longest bridge ever since. The structure is a remarkable 102 miles long. It runs between Shanghai and Nanjing in the Jiangsu province, carrying the Beijing-Shanghai High-Speed Railway across the Yangtze River delta, from Danyang to Kunshan. It is one of four Railway bridges that made it onto this list. The bridge took four years to build and cost between $8.5 and $10 billion, depending on the source. It required more than 10,000 people to get the work done.

2. CHANGHUA-KAOHSIUNG VIADUCT,CHINA

This is currently the second longest bridge in the world. It carries part of the Taiwan High Speed Rail network. The bridge extends almost 98 miles from Banguashan in Changhua to Zuoying in Kaohsiung. It was completed in 2007. 

3. TIANJIN GRAND BRIDGE, CHINA

This railroad viaduct comes in at just over 70 miles long. It runs between Langfang and Qingxian, carrying the Beijing-Shanghai High-Speed Railway. It’s the second of the four bridges on our list that are part of that rail system. Construction of it ended in 2010 after four years of work.

4. CANGDE GRAND BRIDGE, CHINA

This bridge, the world’s fourth longest, is the third on our list that’s part of the Beijing-Shanghai High-Speed Railway. This bridge is almost 66 miles long and has a total of 3,092 piers. 

5. THE WEINAN WEIHE GRAND BRIDGE,GHINA

This is another Chinese railway bridge that makes our list of the world’s longest viaducts. It’s part of the Zhengzhou-Xi’an High Speed Railway. It’s just under 50 miles long. It’s unusual because it crosses the Wei River twice, along with several other rivers, including the Ling, Luofu, Xi, and Shi Di. It was the longest bridge in the world for a short time after it was completed in 2008 and opened in 2010. However, it was quickly eclipsed by other bridges completed at the same time. 

6. BANG NA EXPRESSWAY, THAILAND

At just over 34 miles long, this is the longest automotive viaduct on our list. Construction was completed in early 2000. It’s one of the few record- length bridges that does not cross a large water mass. It only transverses the Bang Pakong River for a short distance. It carries a six-lane elevated highway above another highway.

7. BEIJING GRAND BRIDGE, CHINA

At just under 30 miles long, this viaduct connects the two global business hubs of Beijing and Shanghai. It is the fourth bridge that’s part of the Beijing-–Shanghai High-Speed Railway to be on make our list. It was completed in 2010 and officially opened to rail traffic in 2011.

8. Lake Pontchartrain Causeway, United States

The Lake Pontchartrain Causeway is the longest bridge in the United States and the longest in the world that runs continuously over water. The causeway consists of two parallel bridges crossing Lake Pontchartrain in southern Louisiana. The longer of the two bridges is almost 24 miles in length. The first of the two bridges was completed in 1956. When traffic on it exceeded capacity, the second was added. Construction was finished, and it was opened to traffic in 1969. 

9. LINE 1, China

Line 1 of the Wuhan Metro isn’t a bridge in the traditional sense. It’s actually the longest continuous metro system viaduct in the world. The entire line is almost 24 miles long and has 32 stations. It carries an elevated light rail line through Wuhan. It opened in 1995 and underwent renovations in 2003.

10. MANCHAC SWAMP BRIDGE, United States

The Manchac Swamp Bridge is a twin concrete trestle structure located in the Lake Pontchartrain area of Louisiana. At almost 23 miles long, it is one of the longest bridges in the world built over water, along with being the longest on the United States Interstate Highway System. The bridge opened in 1979. Piles had to be driven more than 250 feet below a swamp to construct it. At the time, it cost $7 million per mile to complete.

Comments

Post a Comment

Popular posts from this blog

Environmental practices of big businesses

                            Environmental practices of big businesses The environmental practices of big businesses are shaped by a fundamental fact that for many of us offends our sense of justice. Depending on the circumstances, a business may maximize the amount of money it makes, at least in the short term, by damaging the environment and hurting people. That is still the case today for fishermen in an unmanaged fishery without quotas, and for international logging companies with short-term leases on tropical rainforest land in places with corrupt officials and unsophisticated landowners. When government regulation is effective, and when the public is environmentally aware, environmentally clean big businesses may out-compete dirty ones, but the reverse is likely to be true if government regulation is ineffective and if the public doesn’t care. It is easy for the rest of us to blame a business for helping itself b...
Read more

Information Theory – The Big Idea

                          Information Theory – The Big Idea A In April 2002 an event took place which demonstrated one of the many applications of information theory. The space probe, Voyager I, launched in 1977, had sent back spectacular images of Jupiter and Saturn and then soared out of the Solar System on a one-way mission to the stars. After 25 years of exposure to the freezing temperatures of deep space, the probe was beginning to show its age. Sensors and circuits were on the brink of failing and NASA experts realized that they had to do something or lose contact with their probe forever. The solution was to get a message to Voyager I to instruct it to use spares to change the failing parts. With the probe 12 billion kilometres from Earth, this was not an easy task. By means of a radio dish belonging to NASA’s Deep Space Network, the message was sent out into the depths of space. Even travelling at the speed of ligh...
Read more

In Praise of Amateurs

  In Praise of Amateurs Despite the specialization of scientific research, amateurs still have an important role to play. During the scientific revolution of the 17th century, scientists were largely men of private means who pursued their interest in natural philosophy for their own edification. Only in the past century or two has it become possible to make a living from investigating the workings of nature. Modern science was, in other words, built on the work of amateurs. Today, science is an increasingly specialized and compartmentalized subject, the domain of experts who know more and more about less and less. Perhaps surprisingly, however, amateurs – even those without private means – are still important. A recent poll carried out at a meeting of the American Association for the Advancement of Science by astronomer Dr Richard Fienberg found that, in addition to his field of astronomy, amateurs are actively involved in such fields as acoustics, horticulture, ornithology, meteor...
Read more