Load Capacity of driveway - Will a dump truck crack it?
Talked to the builder of the house and it turns out that he did a pretty good job on the driveway. It is actually 5" thick with rebar over gravel and is the same concrete they used for the foundation (decent sized aggregate throughout). It is built on over a foot and a half of compacted road base that he trucked in to raise the house and driveway from its original position. Turns out he also trucked in about 6" of dirt to fill over the clay ridden base soil of the rest of the property. The driver took it slow and stayed away from the edges and there isn't a crack in the concrete. Worked out great I must say. Since I had some other work to do I rented a small front end loader and made quick work of the pile.
Turns out the gazebo and swing set in the middle of my yard are also sitting on 5" of concrete with rebar. Couldn't break them for the life of me with a big sledge or the bucket and now I know why. I'm going ot have to rent a jackhammer to get rid of them. The only thing that I found that was bad is it looks like the builder put down plastic sheeting (thick stuff, maybe 6 or 8 mils?) underneath all the soil he brought it. I know clay doesn't drain very well but my grass is basically sitting on a water barrier! I wondered why the yard didn't drain quite as well as I thought it should in the lower spots (closer to the plastic). Now I have to figure out what, if anything, I want to do about that.