I've got an existing asphalt driveway that's around 20 feet long. It's in fair shape. I want to widen it by about 5 feet. The ground is level, I'm in the soggy Willamette Valley, Oregon so frost isn't a big concern. And the plan is to have it used for occasional parking.
Is laying down 6" of 3/4 minus gravel sufficient? Should I use larger gravel?
Is there anything special that needs to be done at the junction of the gravel and asphalt?