Six inches of topsoil is to be removed and stockpiled for the building in Figure 10.48. The topsoil is to be removed 8 feet back from the perimeter of the building to allow for working around the building and sloping the sides of the excavation. How many bank cubic yards (bcy) of topsoil need to be removed and stockpiled?
The limits of the topsoil excavation are shown in Figure 10-3.
What will be an ideal response?
Two solutions are provided below:
Area = 27 ft × 46 ft + 42 ft × 58 ft = 3,678 sf
Area = 69 ft × 58 ft – 27 ft × 12 ft = 3,678 sf
Volume = 3,678 sf × 6 in / 12 in per ft = 1,839 bcf / 27 cf per cy = 68 bcy
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