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Main Divisions of Project Drawings |
DRAWING REVISIONS
Figure 2-2.—CESO drawing number.
A Revision block contains a list of revisions
made to a drawing. The Revision block is in the
upper right-hand corner. Drawing revisions to
NAVFACENGCOM project drawings are to be
made according to DoD-STD-100C. The Revision
block may include a separate “PREPARED BY”
column to indicate the organization, such as an A/E
firm, that prepared the revision. Like title blocks,
revision blocks may vary in format with each
command.
GRAPHIC SCALES
Graphic scales are in the lower right-hand corner
of each drawing sheet with the words Graphic Scales
directly over them. The correct graphic scales must be
shown prominently on each drawing, because as
drawings are reduced in size, the reductions are often
NOT to scaled proportions. Remember, scaling a
drawing should be a done as a “last resort.”
DRAWING SYMBOLS
Because of the small scale used in most drawings,
standard graphic symbols are used to present complete
information concerning construction items and
materials. These typical symbols are used so
frequently in construction drawings that their meaning
must be familiar not only to the preparer, but to the
user as well. The main information sources for a
particular symbol are the Military (Drawing)
Standards (MIL-STD) and the American National
Standards Institute (ANSI). Refer to these standards
before you use other references. The following is a list
of the most commonly used military standards.
As a Builder, you will find that your knowledge
of the applicable symbols will assist you greatly in
doing the job correctly and promptly, and above all,
with confidence. In figure 2-3, symbols are used to
identify sections, elevations, and details that are
commonly misinterpreted. Some of the basic
architectural symbols, as shown in figure 2-4, are
commonly found on site or plot plans. Structural
symbols are shown in the NAVFAC P-405, the
Steelworker, vol. 1, and the Engineering Aid Basic.
DRAWING NOTES
NOTES are brief, clear, and explicit statements
regarding material use and finish and construction
methods. Notes in a construction drawing are
classified as specific and general.
SPECIFIC NOTES are used either to reflect
dimensioning information on the drawing or to be
explanatory. As a means of saving space, many of the
terms used in these notes are often expressed as
abbreviations.
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