10 World's Longest Bridge

10. Seven-mile bridge, length 10 887 M connects the Gulf of Mexico with the United States mainland in Florida 

9. San Mateo - Bridge Hayoard, length 11 265 M, across the Gulf of California, San Francisco USA. 
8. Union Bridge, Long M 12 900, linking Prince Edward Island with New Brunswick on the Canadian plains. 
7. Bridge Rio - Niteroi, 13 290 M Long, Linking the city of Rio de Janeiro and Niteroi in Brazil. 
6. Penang Bridge, Long 13 500 M, connects the island of Penang and mainland Malaysia. 
5. Vasco da Gama bridge, length 17 200 M, Europe's longest bridge across the rivers in the city of Lisbon Purtugal 
4. Chesapeake Bay Bridge, Long 24 140 M, across the bay in Maryland Chesepake America. 
3. King Fahd Causeway, Long M, across the dam that links between Saudi Arabia and Bahrain. 
2. Donghai Bridge, Long M 32 500, the longest bridge in Asia and also the longest bridge that crosses the ocean, located in Shanghai China. 
1. Lake Pontchartrain, length 38 420 M contained in the Louisiana New Orleans, USA. 

Sources: http://acehfoto.com/blog/?p=169