What is the minimum distance from the toe of a slope to a structure, if the slope height is 15 feet?

For a slope height of 15 feet, the minimum distance from the toe of the slope to a structure is typically determined by safety regulations to ensure stability and avoid potential hazards from lateral earth pressure, erosion, and slippage. The chosen distance of 7.5 feet represents a common engineering principle that suggests a safety margin of at least half the height of the slope. This rule accounts for the gravitational forces acting on the slope and the stresses that can occur at the toe, allowing for adequate protection of nearby structures.

This practice is essential in excavating and grading operations where slopes are involved, as the stability of the slope directly influences the safety of nearby construction. By adhering to this distance, it minimizes the risk of structural damage and ensures safe working conditions, reflecting sound engineering judgment.

Regarding other distances provided, they exceed the practical and necessary minimum, which could unnecessarily restrict usable space or increase costs without providing significant additional safety benefits in many cases.