Having an issue with a client who 'has always used 3/4 crushed aggregate below his mechanical pads without a problem'. Current site within flood plain, has high water table and little to no drainage plan on site. I am recommending a mixed aggregate and clayey graded 'roadway' type (Class 2 AB) subbase material that in hopes it will act less like a reservoir below the mechanical pad during wet weather than a pourous 3/4" . Am I being 'too conservative',....again! Thinking about this one too much? Any thoughts? Thanks in advance, Bill
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