A.
The identified floodplain area shall be any areas of the Township
of Rostraver, classified as special flood hazard areas (SFHAs) in
the Flood Insurance Study (FIS) and the accompanying Flood Insurance
Rate Maps (FIRMs) dated March 17, 2011, and issued by the Federal
Emergency Management Agency (FEMA) or the most recent revision thereof,
including all digital data developed as part of the Flood Insurance
Study.
B.
The above referenced FIS and FIRMs, and any subsequent revisions
and amendments are hereby adopted by the Township of Rostraver and
declared to be a part of this chapter
The identified floodplain area shall consist of the following
specific areas:
A.
FW (floodway area): the areas identified as "floodway" in the AE
Zone in the Flood Insurance Study prepared by the FEMA. The term shall
also include floodway areas which have been identified in other available
studies or sources of information for those floodplain areas where
no floodway has been identified in the Flood Insurance Study.
B.
FF (flood-fringe area): the remaining portions of the one-hundred-year
floodplain in those areas identified as an AE Zone in the Flood Insurance
Study, where floodway has been delineated. The basis for this 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 in
the Flood Insurance Study, where one-hundred-year-flood elevations
have been provided, but no floodway has been delineated.
D.
FA (general floodplain area): the areas identified as Zone A in the
FIS for which no one-hundred-year-flood elevations have been provided.
When available, information from other federal, state and other acceptable
sources shall be used to determine the one-hundred-year elevation,
as well as a floodway area, if possible. When no other information
is available, the one-hundred-year elevation shall be determined by
using a point on the boundary of the identified floodplain area which
is nearest the construction site in question. In lieu of the above,
the municipality may require the applicant to determine the elevation
with hydrologic and hydraulic engineering techniques. Hydrologic and
hydraulic 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 by the Township.
E.
FO (shallow floodplain area): the areas identified as Zone AO in
the FIS that have flood depths of one to three feet as delineated
on the maps accompanying the FIS.
The identified floodplain area may be revised or modified by
the Board of Commissioners 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
the FEMA. Additionally, as soon as practicable, but not later than
six months after the date such information becomes available, a community
shall notify the 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 Engineer,
and any party aggrieved by this decision may appeal to the Board.
The burden of proof shall be on the appellant.
