Top 20 biggest bridges in extension

20º: Astoria-Megler
Extension: 6.545 meters
Country: United States of America
Built in: 1966


19º: Nanjing Yangtze
Extension: 6.772 meters
Country: China
Built in: 1.968


18º: Great Belt East
Extension: 6.790 meters
Country: Denmark
Built in: 1.998


17º: Huey P. Long
Extension: 7.000 meters
Country: United States of America
Built in: 1.936


16º: Gwang-An Great
Extension: 7.420 meters
Country: South Korea
Built in: 2.002


15º: James River
Extension: 7.425 meters
Country: United States of America
Built in: 1.983


14º: Oresund
Extension: 7.845 meters
Country: Denmark/Sweden
Built in: 1.999


13º: Mackinac
Extension: 8.038 meters
Country: United States of America
Built in: 1.957


12º: General Rafael Urdaneta
Extension: 8.678 meters
Country: Venezuela
Built in: 1.962

11º: Sunshine Skyway
Extension: 8.851 meters
Country: United States of America
Built in: 1.987


10º: Seven Mile
Extension: 10.887 meters
Country: United States of America
Built in: 1.982


9º: San Mateo-Haywards
Extension: 11.265 meters
Country: United States of America
Built in: 1.967


8º: Confederation
Extension: 12.900 meters
Country: Canada
Built in: 1.997


7º: Rio-Niterói
Extension: 13.290 meters
Country: Brazil
Build in: 1.974


6º: Penang
Extension: 13.500 meters
Country: Malaysia
Built in: 1.985


5º: Vasco da Gama
Extension: 17.185 meters
Country: Portugal
Built in: 1.998


4º: Chesapeake Bay
Extension: 24.140 meters
Country: United States of America
Built in: 1.964


3º: King Fahd Causeway
Extension: 26.000 meters
Countri: Saudi Arabia
Built in: 1.986

2º: Donghai
Extension: 32.500 meters
Country: China
Built in: 2.005


1º: Lake Pontchartrain Causeway
Extension: 38.422 meters
Country: United States of America
Built in: 1.969

theres one in Dundee, Scotland thats massive over 100ft high...

lol pointless but those bridges are pretty impressive