Case Study: Surveying a Gravel Stockpile, Sau Paolo, Brazil Date: May 2015 Location: Sau Paolo, Brazil Customer: Group Serveng The Survey The task was to survey a gravel stockpile in order to calculate its volume, with a measurement accuracy of better than 3 centimeters (9 hundredths of a foot). Original Effort Estimate The original effort estimate to survey the gravel stockpile and calculate its volume u

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