James wrote:
One way to improve your driveway is to first put down at least 3
inches of rip rap, a common, large type of stone. This gives you a
good road base, and then you can put smaller gravel on top of the rip
rap. Once you get a good roadbase with the rip rap, it is highly
unlikely that common cars and light trucks would drive the gravel
back into the soil.

Having 3 or 4 inches of small gravel will not always hold up during
spring freezing and thawing. The spring season is the hardest on a
gravel road or driveway.

It will, but it took 25 years in our case!