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St. Paul District, U.S. Army Corps of Engineers: 6551
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St. Paul District, U.S. Army Corps of Engineers: 6556
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St. Paul District, U.S. Army Corps of Engineers: 6653
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St. Paul District, U.S. Army Corps of Engineers: 6688
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St. Paul District, U.S. Army Corps of Engineers: 6712
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St. Paul District, U.S. Army Corps of Engineers: 6738
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St. Paul District, U.S. Army Corps of Engineers: 6757
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St. Paul District, U.S. Army Corps of Engineers: 6766