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PLOTTING  CROSS  SECTIONS
Figure  14-29.-A. Cross section notes. B. Cross sections plotted.

Engineering Aid 3 - Beginning Structural engineering guide book
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Figure 14-27.-Three-level section in fill. Figure 14-28.-Sidehlll section. lines and with lighter lines into 1/10-in. squares, Cross-section paper is commonly called 10- x 10-in, paper. Plot each cross section separately; and below each  plot,  show  the  station  number.  Place  the first  cross  section  at  the  top  of  a  sheet  and continue   downward   until   you   plot   all   the sections.  Two  or  more  sections  may  be  plotted on   the   same   sheet.   In   a   major   highway project,  plot  cross  sections  on  a  continuous roll   of   cross-section   paper.   Some   surveyors prefer  to  plot  the  cross  sections  from  the bottom  to  the  top  of  the  paper.  They  may  also prefer  to  record  cross-section  notes  in  the  same manner.  If  you  follow  these  methods  of  plotting and recording, you are properly oriented with the actual direction of the highway; that is, your left is also towards the left of the highway; it is also to  the  left  of  the  cross-section  notes  and  the plotted  cross  section.  Really,  it  doesn’t  matter which  method  you  follow  as  long  as  you  are properly oriented to the direction of the highway at all times. Unlike  profile  plotting,  in  cross-section plotting, the same scale is often used for both the vertical  and  the  horizontal  distance.  Common scales are 1 in.  =  5  ft  and  1  in.  =  10  ft.  When sections are shallow, it is best to exaggerate the vertical  scale,  making  it  from  two  to  ten  times  the horizontal  scale. For the center line for a row of sections, use one of the heavier vertical lines on the paper far enough away from the margin so that no points plotted will run outside the limits of the paper. Note the depths indicated for the first section to be plotted, and select a horizontal line for the base 14-31







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