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Borough of Lewistown, PA
Mifflin County
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Table of Contents
Table of Contents
The identified floodplain area shall be any area of the Borough of Lewistown classified as special flood hazard areas (SFHAs) in the Flood Insurance Study (FIS) and the accompanying Flood Insurance Rate Maps (FIRMs) dated August 16, 2006, 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. The above-referenced Flood Insurance Study and Flood Insurance Rate Maps, and any subsequent revisions and amendments thereto, are hereby adopted by the Borough of Lewistown 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 FIS 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 FIS, where a floodway has been delineated. 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 in the FIS, 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:
(1) 
In lieu of the above, the Borough of Lewistown 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 Borough.
The identified floodplain area may be revised or modified by the Borough Council of the Borough of Lewistown 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 Federal Emergency Management Agency (FEMA). Additionally, as soon as practicable, but not later than six months after the date such information becomes available, a community shall notify the Federal Emergency Management Agency (FEMA) by submitting technical or scientific data.
Should a dispute concerning any identified floodplain boundary arise, an initial determination shall be made by the Borough Planning Commission; any party aggrieved by the decision of the Borough Planning Commission may appeal the decision to Borough Council within 30 days of the determination by the Borough Planning Commission, and if aggrieved by the decision of the Borough Council, such decision may be further appealed within 30 days thereof to the Zoning Hearing Board. The burden of proof is on the appellant.