Qingdao Haiwan Bridge is the world longest sea bridge. The world’s longest sea bridge of 26.4 miles in length. The bridge will be a six-lane expressway able to cope with earthquakes up to magnitude 8.0, strong typhoons and the impact of a 300,000 tonne vessel. China's Qingdao Haiwan Bridge sets world record. it took four years to build The World's Longest Bridge. Here is the few photos of World's Longest Sea Bridge - Qingdao Haiwan Bridge, World's Longest Sea Bridge Images & Qingdao Haiwan Bridge, World's Longest Sea Bridge in China Pictures.