It is a very daunting task to decide as to which are the world’s longest bridges. This is mainly because most of the bridges run both on land and water and it becomes difficult whether to measure it completely or measure only a part of it. If only a part of the bridge which is over the water is considered, the measurements would be different from the case when the elevated roadways are also considered within the range of the bridge. However, some measurements have been made and as per that, a list of the world’s longest bridges has been provided here.
Danyang Kunshan Grand Bridge, Shanghai
This bridge extends up to 164.8 km and hence, considered to be the world’s longest bridge. It is built over the Beijing-Shanghai High speed railway.
Tianjin Grand Bridge
This is also a railway bridge and it is constructed over the railway running between Langfand and Qingxian. Again, this is a part of the Beijing-Shanghai railway. The length of this bridge is 113.7 km and hence, it comes in the list of the world’s longest bridges.
Bang Na Expressway
This bridge is located in Thailand and more than a bridge, it looks like an elevated highway. Its length is 55 km and it is a six lane highway, which is its specialty. Till 2010, this bridge was the longest in the world. But, it is generally not included when the list of the longest bridges in the world is discussed because this bridge does not cross a water body. It does cross a water body, but for a very small portion of its length, over the Bank Pakong river.
Lake Pontchartrain Causeway
This is not a single bridge, but a pair of two bridges, which run parallel. These are built over the Lake Pontchartrain, hence the name of the bridge. Situated in Louisiana, USA, this bridge extends over 38.35 km and if we talk about the longest bridge that runs over water for its entire length, this is the longest bridge.
Manchac Swamp Bridge
This bridge is made up of concrete and is located in Louisiana, United States. Again, this bridge is built over the Lake Pontchartrain. The specialty of this lake is that it is famous of the incredibly long bridges built over it.
This bridge is situated in china and it is built over the Yangtze River. In fact, this bridge is not a single bridge, but a complex of some bridges. The two most important bridges in this complex are the ones that link Zhenjiang and Yangzhou, which are on the south bank and the north bank of the river respectively. This bridge complex is again a part of the famous Beijing Shanghai expressway.
Jiaozhou Bay Bridge
In technical terms, this bridge is declared to the longest bridge built over water. However, many small parts of this bridge are suspended not over water, but over dry land. Hence, it is not the longest bridge that runs continuously over water. If we talk about the world’s longest bridges built over water, Lake Pontchartrain Causeway wins.