Grading in civil engineering and construction is the work of ensuring a level (or possibly sloped to specific degree) base for a construction work such as a foundation or the base course for a road or a railway. A foundation is a Structure that transfers loads to the earth Base Course in pavements refers to the sub-layer material of an Asphalt roadway and is placed directly on top of the undisturbed soil so as to provide a foundation A road is an identifiable route, way or path between two or more places.
In the case of gravel roads and earthworks for certain purposes, grading forms not just the base but the cover and surface of the finished construction. A gravel road is a type of unpaved Road surfaced with Gravel that has been brought to the site from a Quarry or Stream bed. Earthworks are engineering works created through the moving of massive quantities of Soil or unformed rock.
A grader, also commonly referred to as a road grader, a blade, a maintainer or a motor grader, is an Engineering vehicle with a large The grade (or gradient or pitch or slope) of any physical feature such as a Hill, Stream, Roof, railroad, or Slope is used to describe the steepness incline gradient or grade of a straight line.