The identified floodplain area may consist of the following
specific areas. If one or more of the following specific areas are
not mapped within the Township, then the standards associated with
the specific area shall not apply to the proposed regulated activity.
A. FW (Floodway Area). The areas identified as "floodway" in the AE
Zone on the Flood Insurance Study Maps prepared by FEMA.
B. FF (Flood-Fringe Area). The areas between the edge of the floodway
and the outermost boundary of the floodplain on both sides of the
watercourse in an AE Zone where a floodway has been delineated on
the Flood Insurance Study Maps prepared by FEMA. The basis for the
outermost boundary of this area shall be the one-hundred-year flood
elevations as shown in the flood profiles contained in the Flood Insurance
Study.
C. FE (Special Floodplain Area). The areas identified as Zone AE on
the Flood Insurance Study Maps, where one-hundred-year flood elevations
have been provided, but no floodway has been delineated. Where no
area is identified as floodway within the AE Zone, then the floodway
shall be assumed as the area measured 50 feet landward from the top-of-bank
on both sides of the watercourse.
D. FA (General Floodplain Area).
(1) The areas identified as Zone A on the Flood Insurance Study Maps
for which one-hundred-year flood elevations have not been provided.
When available, information from other federal, state, and other acceptable
sources shall be used to determine the one-hundred-year flood elevation,
as well as a floodway area, if possible. The acceptability of other
sources shall be subject to approval by the Township. When no other
information is available, the one-hundred-year flood elevation shall
be determined by using a point on the boundary of the identified floodplain
area which is nearest the construction site in question. Within Zone
A, the floodway shall be assumed as the area measured 50 feet landward
from the top-of-bank on both sides of the watercourse.
(2) The Township may require or permit the applicant to determine the
one-hundred-year flood elevation with hydrologic and hydraulic engineering
analysis. Such analyses shall be undertaken only by professional engineers
or others of demonstrated qualifications, who shall certify that the
technical methods used correctly reflect currently accepted technical
concepts. Studies, analyses, computations, etc., shall be submitted
in sufficient detail to allow a thorough technical review and approval
by the Township.
The identified floodplain area may be revised or modified by
the Township where studies or information provided by a qualified
agency or person documents the need for such revision. However, prior
to any such change, approval must be obtained from FEMA. Additionally,
as soon as practicable, but not later than six months after the date
such information becomes available, a community shall notify FEMA
of the changes by submitting technical or scientific data.
Should a dispute concerning any identified floodplain boundary
arise, an initial determination shall be made by the Township or its
designated representative. Any party aggrieved by this decision or
determination may appeal to the Board of Supervisors. The burden of
proof shall be on the appellant.