12-20-2018, 02:17 PM
Based on what I saw as Charlie got built, which is a pretty weak set of anecdata, the fill was removed for remediation and new fill was added. Then all the piles were driven in, but to do that pile driving very heavy equipment had to drive around the plot a lot. My guess is that something about having basically level ground at street level makes that process considerably easier/cheaper than doing it in a partially dug out plot. Those pile driver machines are big and balancing them is probably a tricky process.