The Donghai Bridge is the second longest cross-sea bridge and the 6th longest bridge in the world.
The bridge was the longest cross-sea bridge in the world for a few years until Hangzhou Bay Bridge was opened on May 1st, 2008.
Has droped in the list to the 16th place on the list of the longest bridges in the world at the time of writing this in nov. 2019 and is the third bridge on the list from china.
The Donghai Bridge (simplified Chinese: 东海大桥; traditional Chinese: 東海大橋; pinyin: Dōnghǎi Dàqiáo; literally "East Sea Grand Bridge") was completed on December 10th, 2005 and has a total length of 20.19 miles it connects Yangshan deep-water port and Shanghai in China.
The majority of the bridge is low-level viaduct but there are also cable-stayed sections to allow large ships passage.
Not sure how much steel was used in the construction of this bridge, but as always if I get these figures I will post them or if you have them feel free to comment so everyone can know.
Unrelated but could be of interest to you is the Donghai Bridge Wind Farm which is in the deep port producing 102 Mega Wats of offshore wind power that powers upto 200,000 homes, on july 6th 2010 it started pumping out power from these wind turbines and sent to the mainland grid to make it chinas first offshore wind farm.
The 7th bridge on our list is the Atchafalaya Basin Bridge all though I do not have much information about this bridge nor do I know how much steel was used on this bridge.
If anyone has information to add please comment so we can add information. This is what we do know as of this posting Atchafalaya Basin Bridge is the 7th longest bridge in the world and the 6th longest over water. The bridge is located in Louisiana, USA and carries interstate 10 over the Atchafalaya Basin the bridge has a total length of 96,095 feet or 18.2 miles long.
The Tianjin Binhai Mass Transit (BMT) (滨海快速) or Jinbin light rail (津滨轻轨) is not like the other bridges on the list so far this one is a light rail fast transit line or a rapid metro train line. The longest all bridge part of this train line is 16.03 Miles long (25.7977 km). which makes this the 8th longest bridge in the world and first longest train bridge. This bridge connects Metropolitan Tianjin to TEDA which are both located in China.
The Chesapeake Bay Bridge-Tunnel (CBBT) is a 23 mile long bridge and tunnel system that connects southeastern Virginia with Delmarva Peninsula in the United States. The bridge connects the following independent cities Virginia Beach, and Norfolk, Virginia to Cape Charles in Northampton County along the eastern shore of Virginia.
update: the information on the 6th October Bridge below had it as the 10th longest bridge in the world when it was first posted. But over the years there has been a lot of new bridges being built which makes this bridge as of this update on December 27th, 2019 it is now the 35th longest bridge in the world.
Once the 10th longest bridge in the world. The 6th October Bridge in Cairo, Egypt. The bridge is 12.74 miles long, connection part of the city highway to the Cairo International Airport. The people of Cairo call this bridge, the spinal cord of Cairo because half the city travels on it daily. The bridge is usually crowded due to everyone using it and can take as long as 45 minutes to cross when traffic is heavy. The bridge was under construction for 30 years and was finally finnished in 1996.
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