Question: which is the longest bridge in the us
Answer: 11 113,700 373,000 ( Viaduct ) High - speed rail China Cangde Grand Bridge Beijing -- Shanghai High - Speed Railway 115,900 380,200 ( Viaduct ) High - speed rail China Weinan Weihe Grand Bridge Zhengzhou -- Xi'an High - Speed Railway 79,732 261,588 ( Viaduct ) 2008 High - speed rail China Bang Na Expressway Guinness : Longest Road Bridge , 2000 54,000 177,000 ( Viaduct ) 2000 Expressway Thailand Beijing Grand Bridge Beijing -- Shanghai High - Speed Railway 48,153 157,982 ( Viaduct ) High - speed rail China Lake Pontchartrain Causeway ( across Lake Pontchartrain in Louisiana ) Guinness : Longest bridge over water ( continuous ) , 1969 38,442 126,122 ( Viaduct ) 1956 ( SB ) 1969 ( NB ) Highway United States Line 1 , Wuhan Metro Bridge Wuhan Metro 37,788 123,976 ( Viaduct ) 2009 Metro China Manchac Swamp Bridge ( I - 55 / US 51 across Manchac Swamp in Louisiana ) 36,710 120,440 ( Viaduct ) 1979 Highway United States Yangcun Bridge Beijing - Tianjin Intercity Railway 35,812 117,493 100 330 2007 High - speed rail China Hangzhou Bay Bridge 35