When will you plan for stockpiling of excavation soil

A borrow site south of Harrisburg will be used to provide the material needed to construct 432,600 cy of embankment for the Harrisburg Expressway project. Soil testing has indicated the following unit weights: Bank - 102 pcf Loose - 85 pcf • Compacted - 118 pcf The contractor plans to use 14 cy on-highway dump trucks and has agreed with the owner of the borrow site property to a price of $1.25 per excavated cubic yard. 1. What is the cost of purchasing the borrow material? 2. How many truck loads must be hauled from the borrow site to the embankment site?

Indicate the general advantages and disadvantages associated with hydraulic fill placement methods.

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