48:49Golden Gate Bridge Still Shines
From the creator
After 75 Years This is the VOA Special English Technology Report, from http://voaspecialenglish.com | http://facebook.com/voalearningenglish This year is the seventy-fifth anniversary of the Golden Gate Bridge in California. It opened to vehicle traffic on May twenty-eighth, nineteen thirty-seven. Since then, more than two billion vehicles have crossed the world-famous bridge linking San Francisco and Marin County. The bridge is named after the Golden Gate Strait. That narrow passage of water connects San Francisco Bay to the Pacific Ocean. The Golden Gate Bridge had the longest suspension span in the world at the time it was built. The suspended roadway stretches one thousand two hundred eighty meters between the bridge's two tall towers. Today the Golden gate still rates among the ten longest bridge spans. Mary Currie works for the Golden Gate Bridge, Highway and Transportation District. She says the bridge represents one of the most extraordinary engineering projects of all time. She calls it an "engineering marvel" and says it gets award after award for what it means in civil engineering and structural engineering. She says the Golden Gate Bridge is also a place where "things happen first." For example, it was the first suspension bridge to have to change the roadway deck. The bridge is twenty-seven meters wide and two thousand seven hundred eighty-eight meters long. Two large cables pass over the top of the bridge's towers. These structures stand
Published 2012-07-02 · Watch on YouTube ↗
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