Excavation and Backfill BONUS Activity 4(%)
Given the following quantities, complete a cost estimate for the following excavation and back fill
project:
• Excavation Total 197 cubic yards
• Backfill Total 70 cubic yards
Based on the number of cubic yards of material provided, please answer the following questions:
An excavator takes ten minutes to load a truck with 12 cubic yards of material.
How many truck loads of material is there?
A truck takes 50 minutes to go and dump the load and return for another load. How many trucks would
you need to complete this excavation? (Remember you cannot have ½ a truck, it’s either present or
not).
How many hours will the excavator be operating for?
Building on your previous questions, a grade-person will need to be checking the excavation depth as
the excavator operator is digging.
How many hours will you need to have this person on-site for?
Trucking cost is $85.00 per hour per truck.
The excavator and operator cost is $350.00 per hour with a minimum of 4 hours.
The grade-person costs $45.00 per hour with a minimum of 4 hours.
How much would the total excavation cost?