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.
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.
The Hangzhou Bay Bridge is the worlds 4th longest bridge 3rd longest over water bridge and the worlds longest Trans-oceanic bridge at 22.17 miles long .
Construction on this bridge started on June 8th, 2003 and was completed on June 14th, 2007. The opening ceremony was on June 26th, 2007 even though the bridge was not officially open to the public until May 1st, 2008. This is as of this posting the longest bridge in China and was built to last at least 100 years.
UPDATE: Hangzhou Bay Bridgeis no longer the 4th longest bridge in the world, as of today nov. 2019 it is now 13th it has droped 9 spots over the last 10-11 years due mostly to chinas rapid infrastructure growth over the same period. China holds 6 of the top 10 longest bridges in the world, Hangzhou Bay Bridge has many bridges under construction that will soon be added to our list of worlds longest bridges.
Hangzhou Bay Bridge is a bridge with cable-stayed bridge portions across the Hangzhou Bay off the east coast of china. The bridge was built in an s shape so that the annual silver dragon is minimally affected. The bridge has two main spans a 1,470 ft northern span and a 1,043 ft southern span.
The bridge has 6 express lanes in two directions. The speed limit is 62 miles per hour. Orthotropic steel deck is used on its main spans and five ramp bridges, and was paved with 50 millimeters (2.0 in) epoxy asphalt concrete.
The bridge uses different colors and flashing lights to keep drivers from getting drowsy and pay attention to the road instead. Previously the trip from Ningbo to Shanghai and southern Jiangsu involved a detour of around 400 km (249 mi), the bridge reduces that distance to 80 km (50 mi), a reduction of 320 km (199 mi).
The result is that Ningbo, with its port at Beilun, will be able to compete with Shanghai’s port Pudong for international sea freight.
This is just one of the investments China has made in it’s transportation infrastructure in the past few years.
The bridge is expected to boost tourism in Ningbo. Again I do not have the figures on how much steel was used in the construction of this bridge but if you get it I will post it, and as always if you have this information feel free to comment.
The Third bridge in this series, also the Third longest bridge in the world, and the second longest bridge over water. The briidge is located in Louisiana, USA, with a length of 23 Miles it comes in right behind Lake Pontchatrain Causeway at (22.80 mi) and Bang Na Expressway (33.51 mi). we do not have much info about this bridge and I don’t know how much steel was used in it’s construction but if we get this information I will post it here, feel free to comment if you have these numbers.
UPDATE: MANCHAC SWAMP BRIDGE is the second longest bridge in Louisiana but it is no longer the third longest bridge in the world as of today in Nov. 2019 it is now the 10th longest bridge in the world. the bridge is a little over one third of the highway's over lenght of 66miles. The piles used in this bridge were driven 250 feet beneath the swamp 76 meters and was opened in 1979. The bridge type is Trestle bridge and pile bridge.
This 120,374.02-foot concrete overpass only receives around 2,250 drivers a day. To this day this bridge is still an engineering feat that was built over alligator-infested waters that are rumored to be haunted, despite the legends it is a very safe bridge to drive over, but that doesn't stop superstitious tourist from visiting the bridge and lake every year.
also known as the Causeway is the worlds second longest bridge at 23.87 miles behind the Bang Na Expressway (33.51 mi) , the Causeway is the longest bridge in the world over water as of this posting.
The Lake Pontchatrain Causeway crosses over Lake Pontchartrain in southern Louisiana, USA. The bridge connects Metairie, Louisiana, a suburb of New Orleans and Mandeville, Louisiana.
Although I don’t have the numbers on the amount of steel used in the building of this bridge I do know there are over 9000 concrete pillings supporting the bridge.
The The Lake Pontchatrain Causeway first opened in 1956 and was at that time a a two-lane span of 1/100th of a mile. bridges was expanded on and re opened on May 10th, 1969. This bridge is a toll bridge and always has been.
More details on the Lake Pontchartrain Causeway, daily traffic is around 43,000 cars per day with a $5 USD toll southbound at the time of this update nov. 2019. The bridge is supported by 9,500 concrete pilings. In 2011 it was named the longest bridge over water by the Guinness World Records, after words it was divided in to 2 different categories continuous and aggregate. It is considered the longest continuous bridge over water. Jiaozhou Bay Bridge in China is the longest bridge over water aggregate.
After Hurricane Katrina Lake Pontchartrain Causeway lost 17 spans but structural foundations remained intact. Lake Pontchartrain Causeway is 1 of 7 highway spans in Louisiana
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