For concrete and especially if you're doing asphalt a do-it-yourselfer can benefit a great deal by driving their car up and down a few times after you install the stone in the heaviest traffic area of the driveway. Then backfill the ruts. your cars made in the packed stone. This can help prevent ruts in an asphalt driveway overtime with continuous weight or prevent cracks in those areas if you were pouring concrete.
5 tons at 4 inch deep...don't forget to pack it with a tamper
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