I'm planning on fixing my driveway and am wondering if there are any "road builder" types around here that might provide some advice. I'm on flat, dry, peninsula woodland. When my house was built, it appears they simply took the very sandy subsurface "fill" from where they dug out the foundation/crawlspace and laid it down for a driveway. The current condition is severely heaved (not frost heave, just some large areas have settled into depressions) and the surface is mostly sand as any rocks have migrated down below the surface. Needless to say, it makes for a mess with ours and the dog's feet constantly tracking sand into the house. I also need to widen the driveway up to a double lane to accommodate parking all the toys. The side where I'm expanding is moss covered soil. Finished driveway is to be probably around 100' length and somewhere around 25' wide.
So, what I was thinking, was to rent a small piece of equipment and scrape down several inches to get rid of the sand and level it all off. Then lay down Typar, and order some "gravel" to lay over the top and bring it back up to just over, grade.
Obviously, I've never worked in the road construction field, so I'm not exactly sure what kind of "gravel" I should order or how thick of a layer I should plan for. I'm thinking a layer of Typar would be a good thing, but again it's not my field of expertise. I'm not keen on hiring someone to do it as I'm pretty much a do-it-yourselfer. So, any tips or suggestions on building a good driveway?