[N80]

Rebar? Yikes. Hadn't thought of that. Things are pretty stable here so I don't know if I really need it or not.

As for compaction, there are a few inches of topsoil, but below that its dense clay for 2 feet then below that its this hard crumbly stuff that is very compact. I could probably rent one of those thumpers to compact the topsoil.

If I pour it 4" thick that's 8.4 cubic yards and would require just one truck load and set me back about $900 if its $100/yd. But that doesn't include rebar and stuff like that if I need it. So its starting to add up.

In any case, I've got an email to the sales guy at a local concrete place. I'll see what he says. If I can keep it below $1000 I may do it. Otherwise I may just do the center bay...or maybe just leave the dirt.

Thanks for the help guys. I bounce a lot of ideas around on this site and always get good advice.