Thread: CHICAGO | St. Regis Chicago (Vista) | 1,191 FT | 101 FLOORS
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  #18  
Old Posted May 8, 2017, 6:46 PM
Skyguy_7 Skyguy_7 is offline
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Join Date: Dec 2012
Location: Chicago
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^They're both concrete pump towers. The one in question will assist in the floor slab pours.
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