Glass Bridge is 4000 feet above the river Colorado at the very edge of Grand Canyon. The final test was conducted on May 2005, enables it to withstand the of 71 Boieng747 airplanes which is fully loaded(its more than 71 millions).
This glass bridge can withstand the winds that excess of 100miles/hour from 8 different directions as well as 8.0 magnitude of earthquake within 50 miles. More than 1 million steels used to construct this Grand Canyon Sky Walk
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