I have a customer that has developed a depression in their drive from turning in the same way for years. Its a large puddle most of the time with all rain this spring. The drive is small gravel. She wants it fixed and I am thinking a yard of crush and run to fill the hole? We have used that to fix erosion on trails and what not, not sure if it will hold up under daily use. I dont want to fix it only temporary, and would rather not tell her I can do it if I cant.