Question: Please estimate the construction cost for foundation work with the detail using RSMeans. The area of the basement is 27,700 SF and the depth of the basement height is 20 ft. The pile would be Auger cast-in-place piles and 75 ft deep. Please Use RSMeans to estimate.

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Q: 4.5 kN/m 3m 2m

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Pricing Excavation and Backfill

Backfill, in construction, is the activity of returning the soil and gravel that are removed during building construction or using them again to toughen and support the foundation of the building or any other structural component.