Analyse @StPaulUSACE's tweets
@StPaulUSACE
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This week, for #TbT, we celebrate the 85th birthdays of Lock and Dam 4, in Alma, Wisc., and Lock and Dam 5, near Minnesota City, Minn. Their locks went into service the last week of May 1935. ?: LD4, July 1934. https://t.co/UM9D4dYkxj