5 Proven Methods for Keeping Gravel in Place on a Slope
When layering and compacting gravel, build a crown along the center of the path or roadway. Slope the gravel gently downward on either side of the crown. The crown should be 3–6 inches higher than the edges. This crown will help your gravel shed water and resist waterinduced erosion. Any way you can help your gravel shed water is a huge bonus.