Subdivision Regulations - Blount County Government

9-01-06
Floodway: The channel of the watercourse and those portions of the
adjoining floodplain which are reasonably required to provide for the
passage of flow from the regulatory flood (the 100-year Flood). This area
must be left unobstructed in order to preserve the flood- carrying capacity
of the stream and its floodplain without appreciably increasing the height
of the floodwaters.
Floodway Fringe: That part of the floodplain located between the
floodway and the designated outline of the 100-year Flood, which would
be covered by floodwaters of the 100-year Flood.
National Flood Insurance Program (NFIP) Certification: The standards,
rules and regulations governing the construction and development within a
flood zone as identified on Flood Insurance Rate Maps for Blount County,
Tennessee unincorporated. Specific regulations apply to all structures
built within a floodplain when a county is participating in the National
Flood Insurance Program by adopting a local Floodplain Zoning
Ordinance. Compliance with the Blount County Floodplain Zoning
Resolution, as adopted September 1 st , 2000 is administered by the Blount
County Building Commissioner. Certification that a particular structure is
located outside or elevated above the floodplain is required for a building
permit in areas identified on the Flood Rate Insurance Maps for Blount
County. Certification is the responsibility of the owner to hire a qualified
independent professional engineer to determine the minimum floor
elevation to be above the floodplain as specified in the Blount County
Floodplain Zoning Resolution. Any alteration of the floodplain itself,
including cutting, filling, grading or other activities must be in compliance
with the NFIP and the Blount County Floodplain Zoning Resolution. (see
the Blount County Floodplain Zoning Resolution).
Regulatory Flood: A large flood selected for regulatory purposes and a
basis for floodplain management. The 100-year Flood is the regulatory
flood or base flood and there are no flood restrictions outside its limit. The
10-year Flood statistically has a one-percent chance of occurring each
year.
Frontage: That line of a lot abutting on a road, street or lane that is ordinarily
regarded as the front of the lot, but it shall not be considered as the ordinary side
of a corner lot. A corner lot shall have frontage on both intersecting roads with no
reserve strips.
Grade: Grade is the slope of a road, street, or other way (or ground),
specified in percentage terms (%). Grade is calculated by the percentage that
the horizontal distance is to the vertical rise that occurs within the horizontal
distance; the rise (height) divided by the run (length) in percentage terms.
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