Earth grading is the process of manipulating the terrain of a piece of land, usually by excavation or filling, to create a desired slope, elevation, or contour. This is often done to prepare a site for construction, to improve drainage, or to create a more aesthetically pleasing landscape.

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     A grading plan is a document that details the specific earthwork required to achieve the desired terrain changes. Grading plans are typically prepared by a licensed engineer or land surveyor and are essential to the construction or development process.

Grading plans typically include the following information:

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1. Site plan: This is a detailed map of the site that shows the existing conditions, including the location of existing structures, vegetation, and topographical features.

2. Cut and fill calculations: These calculations determine the amount of earth that needs to be removed or added to the site to achieve the desired terrain changes.

3. Grading specifications: These specifications outline the specific techniques and methods that will be used to grade the site, including the type of equipment that will be used and the desired slope and grade.

4. Drainage plan: This plan shows how water will be directed away from the site, including the location of drainage swales, catch basins, and other drainage features.

5. Erosion control plan: This plan outlines measures that will be taken to prevent erosion and sedimentation during and after gradings, such as the use of silt fences or erosion control blankets.

6. Construction details: These details include specific instructions for grading work, such as the depth and width of cuts and fills, the placement of compaction layers, and the placement of topsoil or other finish materials.

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     Overall, grading plans are essential for ensuring that earthwork is completed safely and accurately and that the result meets the desired specifications and requirements.