Topographic Surveys are used to identify and map the
contours of the ground and existing features on the
surface of the earth or slightly above or below the
earth's surface (i.e. trees, buildings, streets, walkways,
manholes, utility poles, retaining walls, etc.). If the
purpose of the survey is to serve as a base map for the
design of a residence or building of some type, or design
a road or driveway, it may be necessary to show
perimeter boundary lines and the lines of easements on
or crossing the property being surveyed, in order for a
designer to accurately show zoning and other agency
required setbacks.
Topographic Surveys require "bench marks" to which
ground contours are related, information regarding
surface and underground utilities, determination of
required setbacks, etc.
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