Which of the following is not a reason for proper grading in earthwork?

Proper grading in earthwork is essential for various reasons, and among these, the creation of barriers for wildlife does not fit into the primary objectives of grading. Grading involves shaping the land to ensure effective drainage, form level surfaces for construction, and facilitate construction processes by preparing the site for building activities.

Improved drainage is crucial because proper grading allows water to flow away from structures, reducing the risk of water accumulation and potential erosion. Formation of a level surface ensures that foundations and other structures can be built reliably and evenly, which is vital for the stability and longevity of the construction. Additionally, grading facilitates construction processes by providing a suitable working surface, enabling the efficient use of equipment and labor.

In contrast, while wildlife considerations may be part of broader environmental impact assessments and land management strategies, creating barriers for wildlife does not directly align with the fundamental purposes of grading in earthwork. Grading is primarily focused on managing water flow, preparing surfaces for building, and enhancing construction efficiency.