Agriculture Reference
In-Depth Information
13
DetaileD GraDinG with SlopeS,
ContourS, anD Spot elevationS
In this chapter you will learn about:
How to employ site-grading tools in solving a variety of common landscape-grading
problems
•
The sequence of steps for solving common landscape-grading situations.
•
IntroductIon
Now that you have been introduced to the fundamental concepts of grading,
we will turn our attention to applying what you have learned to a variety of
site-grading situations that you will encounter in the field. To recap, grading
is required when the design plans call for the existing topography of a project
site to be altered in order to accommodate intended designed elements and
activities. For instance, one of the reasons for site grading might be to create
a gently sloping broad area for a proposed building pad, parking lot, or set of
athletic fields on what may be steep or undulating existing topography. Items A
and B in Figure 13.1 are diagrams that graphically portray the grading that may
be required to create a level area. Item C in the same figure illustrates a swale
needed to carry water from one part of a site to another. Where detailed and
subtle grading is required for a proposed plaza or entry and gathering place,
more detailed spot elevations are required to regrade the site, as depicted in
item D in Figure 13.1.
