Will discuss how Akashi bridge is designed .it has been appraised as the longest suspension bridge in the world. The height of the bridge is measured to be 280m Equals the length of an 80-storey building. The bridge has three spans, the main span was designed to be measured 1,990 metres “but the Kobe earthquake of 1995 forced the two towers, which were still under construction, more than 3 feet (1 metre) farther apart”, the other two spans are measured to be 960m for each. It have two towers transcend water level by 297m as tall as the Eiffel towers in Paris , and two essential supporting cables (44 in) in diameter, which makes both tower height and cable diameter world records, and the bridge can expand due to warmth by up to 2 m (6.6ft) over the course of a day. It has two main springs as an expansion to put the foundations of the towers have been designed with round and flat, the biggest with a diameter of 80m and the other 78m and deep like as 20-storey building. Drawer descending method has been changed to use for massive deep position and ocean currents in its structure. every anchor calls for, a mean of 350,000 lots of concrete. The bridge was Designed to resist weather conditions such as strong winds of 286 kilometres per hour (178 mph), and “earthquakes measuring up to magnitude 8.5, and harsh sea currents” by using complicated systems of counterweight and steel truss girders. The bridge also carries tuned mass dampers which might be structured to reverberation, the frequency of the bridge to dampen forces. “The bridge also contains pendulums which are designed to operate at the resonant frequency of the bridge to dampen forces”. The surrounding area around Akashi bridge is known as a Fishing area, also about 1400 ships daily arrived the area, so it’s designed to be the worldwide channel by way of the Maritime visitor’s protection in Japan. It has six lanes of the roadway, three in each direction.