미 켄터키주 북부 루이빌 ~ 남부 인디아나 오하이오 교량 건설 동영상 Louisville-Southern Indiana Ohio River Bridges Project(East End) :VIDEO

http://www.bizjournals.com/louisville/news/2016/07/28/new-drone-videos-offerrare-look-at-east-end-bridge.html#g1

Louisville-Southern Indiana Ohio River Bridges Project  

 

 

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