Sunday, March 21, 2010

Akashi-Kaikyō 明石海峡大橋

The Akashi-Kaikyō Bridge, also known as Pearl Bridge, has the longest central span of any suspension bridge (6,532 ft) and is quite a site to behold. The bridge links the city of Kōbe on the mainland of Honshū to Iwaya on Awaji Island. It took two million workers ten years to construct the bridge and it utilizes enough steel cable to circle the planet seven times. The bridge was designed to withstand winds of 178 mph, earthquakes measuring to 8.5 on the Richter scale, and harsh sea currents. The two main supporting towers rise 978 ft above sea level and the bridge can expand up to 7 ft over the course of a day due to surface heating.

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