BUSAN-GEOJE FIXED LINK, korea

The Busan-Geoje Fixed Link connects the island of Geoje with the large city of Busan in the southern part of South Korea, improving access from the city to the industrial and recreational areas on the Island. Two of the world’s largest shipyards are located on Geoje Island. The link is an important connection for motorists, reducing travel time from three hours to under one hour. 

The link comprises three major elements: one of the world's deepest and longest immersed tunnels and two long-span cable-stayed bridges. 

The total length of the immersed tunnel is around 3,5 kilometres, with two 170 metre long cut and cover sections at both ends. Designed to withstand typhoons with wave heights of 15 metres, not only was it the first immersed tunnel ever built in Korea, it also became the -deepest immersed vehicle tunnel in the world.  

The bridge section includes a two-pylon cable-stayed bridge with a main span of 475m, and a three-pylon cable stayed bridge with two main spans of 230m respectively.