Build the driveway on hard, compacted earth. Soft, soggy earth makes a poor foundation for a driveway. Ensure that the middle of the driveway is slightly higher than the edges so water drains efficiently. If the driveway is very sloped or curving, build ditches a few feet from the driveway to drain water.
Lay sheets of heavy-duty landscaping fabric over the soil to keep the dirt from mixing with the gravel. This may not be practical on long driveways.
Lay a 6- to 8-inch layer of crushed, baseball-sized stone on the driveway. This stone may be referred to as #3 stone, depending on the quarry. Rake it to smooth it. Compact the stone with a mechanical roller or tamper.
Add 4 inches of slightly smaller rock, such as #57 gravel, to the driveway. This rock should be about the size of a ping-pong ball. Level it and compact it, as well. Apply a final 4-inch layer of small, crushed rock, known as crusher run gravel.