Agriculture Reference
In-Depth Information
steps C and d
The process continues moving across the Section AA line along the plan
and dropping a perpendicular line where the cut line crosses a plan con-
tour line. Once all the contour lines corresponding to the contour lines on
the plan have been located below, a line that will represent the section view
is drawn by connecting the “dots,” as shown in Figure 7.19-D. In this case,
the section constructed shows the existing terrain with a hill shape in the
center and valleys to either side
A
A
A
A
3 3 3 3 3 3 2 28
3 3 3 3 3 30
2 28
A
A
A
A
3 3 3 3 3 3 2 28
3 3 3 3 3 3 29
28
Figure 7.19-a-7.19-d Steps for creating a section from a topographic map or site-grading plan
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