The total estimated duration of the mass excavation activities in an office building project is 40 days. After 18 days, the project manager receives the following information: Activity Earth Clay Rock Total Volume to be excavated (cubic yard) 20,000 8,000 11,000 What is the SPI of clay excavation? Select the correct response: Unit Price 2.50 5.50 7.50 Actual volume excavated (cubic yard) 8,400 3,100 6,200 Actual cost 19,750 20,850 53,900

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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.