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9 موسم
158 قسط
MegaStructures - Season 2 Episode 2
In 1906, an earthquake of magnitude 7.9 rocked San Francisco. An earthquake of similar or greater proportions is expected to occur in San Francisco again, and soon. The episode takes a look at the efforts that are being made to retrofit and strengthen America’s most recognized bridge, the Golden Gate Bridge, before the next big earthquake happens. It also gives a brief history about the construction of the suspension bridge, and the people who were involved in its construction.
- سال: 2012
- ملڪ: United States of America
- نوع: Documentary
- اسٽوڊيو: National Geographic
- چاٻي:
- ڊائريڪٽر:
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