Development may not occur in the special flood hazard area (SFHA) where alternative locations exist due to the inherent hazards and risks involved. Before a permit is issued, the applicant shall demonstrate that new structures cannot be located out of the SFHA and that encroachments onto the SFHA are minimized. In all areas of special flood hazard, the following provisions are required:
(A) All permit applications are reviewed to determine whether the proposed building sites will be reasonably safe from flooding;
(B) All new construction and substantial improvements shall be anchored to prevent flotation, collapse, and lateral movement of the structure;
(C) All new construction and substantial improvements shall be constructed with flood-resistant materials and utility equipment resistant to flood damage in accordance with Technical Bulletin 2, Flood Damage-Resistant Materials Requirements, dated August 2008 and available from the Federal Emergency Management Agency;
(D) All new construction or substantial improvements shall be constructed by methods and practices that minimize flood damage;
(E) Critical developments shall be elevated to the 500-year flood elevation or be elevated to the highest known historical flood elevation, where records are available and whichever is greater. If no data exists establishing the 500-year flood elevation or the highest known historical flood elevation, the applicant shall provide a hydrologic and hydraulic engineering analysis that generates 500-year flood elevation data;
(F) Electrical, ventilation, plumbing, heating and air conditioning equipment (including ductwork), and other service facilities shall be designed and/or located so as to prevent water from entering or accumulating within the components during conditions of the base flood plus two (2) feet;
(G) All new and replacement water supply systems shall be designed to minimize or eliminate infiltration of flood waters into the system;
(H) New and replacement sanitary sewage systems shall be designed to minimize or eliminate infiltration of flood waters into the systems and discharges from the systems into flood waters;
(I) On-site waste disposal systems shall be located and constructed to avoid impairment to them or contamination from them during flooding;
(J) All gas or liquid storage tanks, either located above ground or buried, shall be anchored to prevent flotation and lateral movement resulting from hydrodynamic and hydrostatic loads;
(K) Any alteration, repair, reconstruction or improvements to a structure which is in compliance with the provisions of this chapter shall meet the requirements of new construction as contained in this chapter. This includes post- FIRM development and structures;
(L) Nonconforming buildings or uses may not be enlarged, replaced, or rebuilt unless such enlargement or reconstruction is accomplished in conformance with the provisions of this chapter. Provided, however, that nothing in this chapter shall prevent the repair, reconstruction, or replacement of an existing building or structure located totally or partially within the floodway; provided that the bulk of the building or structure below base flood elevation in the floodway is not increased; and provided that such repair, reconstruction, or replacement meets all other requirements of this chapter; and
(M) A building must meet the specific standards for floodplain construction outlined in § 156.066 as well as any applicable Americans with Disabilities Act (ADA) requirements. The ADA is not justification for issuing a variance or otherwise waiving these requirements. The cost of the improvements required to meet the ADA provisions shall be included in the costs of the improvements for calculating substantial improvement.
(1985 Code, Ch. 15, Art. V) (Am. Ord. --, passed 4-27-2018) Penalty, see § 156.999