Tag Archives: Jiaozhou Bay Bridge

Lake Pontchartrain Causeway

This entry is part 2 of 12 in the series Bridges

The Lake Pontchatrain Causeway

Lake Pontchartrain Causeway

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. 

Lake Pontchartrain Causeway

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. 

Lake Pontchartrain Causeway air view

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. 

Lake Pontchartrain Causeway overview

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.

Lake Pontchartrain Causeway draw bridge section

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


Lake Pontchartrain Causeway 1
Lake Pontchartrain Causeway - 2 lane

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