How much does it cost to have a few truckloads of dirt removed from your property?

The question may be answered in two parts. You will need a truck and a driver and then somewhere to dump the dirt. If the dirt is "clean", you will have an easier time finding somewhere to unload it, possibly for free. If it goes to the dump, there is likely to be a charge based on weight. You might advertise it as free dirt for the pick up and see if anyone wants it. Definitely will cost you some money to remove that much dirt.