I picked out a location I wanted to build a 4 by 60 pole barn. Had the excavator over to review. He lasered it and said it had about 1 1/2 foot drop corner to corner. I had the guy do it but it turned out much deeper than he or I thought because of what he did for drainage around it. One side has over 4 feet above grade. So, I'm wondering what kind of issues I should be aware of with that much build up. He did the work with a paddle scraper and said the dirt compacted well because it was wet.