How Was this Incredible Stadium Constructed?

The stadium s twin arches soar over 300 ft above the playing field. Together, they distribute 19 million pounds of thrust into four concrete abutments. The superstructure supports a colossal retractable roof and sliding glass doors to create a one-of-a-kind open air sporting experience. #ImpossibleEngineering Wednesdays 9/8 on Science http://www.sciencechannel.com/tv-shows/impossible-engineering/ Subscribe to Science Channel: http://bit.ly/SubscribeScience Check out SCI2 for infinitely awesome science videos. Every day. http://bit.ly/SCI2YT Download the TestTube app: http://testu.be/1ndmmMq