Hello my friends. I just purchased a truckload of fill dirt to fill some holes in my two driveways 4 days ago. It rained yesterday. I had to drive over the spots I filled. The car tires left some pretty big track depressions. My fear is that each time it rains, I will track away my fill dirt little by little and eventually be left with holes again. My question is>>>> is there any way to harden up the dirt, so this does not happen. I would really appreciate any suggestions.