Thread: SAN FRANCISCO | Trinity Place | 240 FT / 73 M | 24 FLOORS
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  #94  
Old Posted Aug 24, 2007, 11:39 PM
BTinSF BTinSF is offline
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Join Date: Jun 2006
Location: San Francisco & Tucson
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OK, so somebody who knows construction tell us: What does this mean?







I took the pics and to me it looks like they are doing test pilings--trying to find how deep is the bedrock perhaps?