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• Shuanghekou Bridge
  ...he Siduhe tunnel and Siduhe bridge, Shuanghekou crosses a rugged, V-shaped river valley 666 feet (203 mtrs) deep. The most notable design element of the br ...t once took more than a day of travel on dangerous dirt roads or a Yangtze river boat can now be safely traversed in 5 hours.
  7 KB (830 words) - 20:49, 21 February 2022

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