What design consideration is required for sloping greater than 20 feet?

When dealing with slopes greater than 20 feet, there are significant design considerations that come into play to ensure safety and structural integrity. Requiring that the slope be designed by an engineer is crucial because this allows for expert evaluation of the geotechnical, hydrological, and structural factors that could influence the slope. Engineers take into account soil stability, erosion potential, drainage systems, and load-bearing capabilities.

This is important because simply employing standard practices without professional oversight may lead to unsafe conditions, especially with the increased risks associated with taller or steeper slopes. An engineer's design not only conforms to safety standards and regulations but also incorporates specific factors that pertain to the unique characteristics of the site and the intended use of the slope.

In contrast, while daily inspections, safety nets, and depth limits might be necessary for certain situations, they do not sufficiently address the complex considerations involved in the proper engineering of slopes over 20 feet. Ensuring that the design is handled by a qualified engineer is a fundamental step in preventing accidents and ensuring the longevity and reliability of the structure.