DEFINING
AND CLASSIFYING BILLBOARD STRUCTURES
FOR ASSESSMENT PURPOSES
For assessment purposes, billboards
are grouped into 4 structural categories based on the building materials used
and the underlying support system. The four categories include wood, steel frame,
multi-mast steel, and monopole.
At a minimum, each billboard includes
the following:
CLASS 1 WOOD STRUCTURE
This class of billboards is constructed
with wood post or pole supports with dimensional lumber as the secondary support
(A frame) with a wood or metal catwalk and a single display panel. Supports
may be imbedded in the ground. There may be a foundation of concrete or gravel.
Lighting, if present, is either fluorescent or mercury vapor.
CLASS 2 STEEL A-FRAME CONSTRUCTION
This class of billboards is constructed
with angle iron or steel supports with metal framing, catwalk, and a single
display panel. Supports may be imbedded in the ground.
There may be a foundation of concrete
or gravel. Lighting, if present, is either fluorescent or mercury vapor.
CLASS 3 MULTI-MAST STRUCTURE
This class of billboards is constructed
with steel pole, I-beam or equivalent as primary support, with a catwalk, and
a single display panel. Lighting is fluorescent or mercury vapor.
CLASS 4 MONOPOLE
This class of billboards is constructed
with tubular steel support (of various circumferences), tubular steel framing,
metal catwalk and a single display panel. The foundation is concrete. Lighting
is fluorescent or mercury vapor.
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