In all areas of special flood hazard, the following provisions are required.
(A) All new construction and substantial improvements shall be anchored to prevent flotation, collapse or lateral movement of the structure.
(B) New construction and substantial improvements shall be constructed with materials and utility equipment resistant to flood damage below the FPG.
(C) New construction and substantial improvements must incorporate methods and practices that
minimize flood damage.
(D) Electrical, heating, ventilation, plumbing, air conditioning equipment and other service facilities shall be located at/above the FPG for residential structures. Electrical, heating, ventilation, plumbing, air conditioning equipment and other service facilities shall be located at/above the FPG or designed so as to prevent water from entering or accumulating within the components below the FPG for nonresidential structures. Water and sewer pipes, electrical and telephone lines, submersible pumps and other waterproofed service facilities may be located below the FPG.
(E) New and replacement water supply systems shall be designed to minimize or eliminate the infiltration of floodwaters into the system.
(F) New and replacement sanitary sewage systems shall be designed to minimize or eliminate the infiltration of floodwaters into the system.
(G) On-site waste disposal systems shall be located and constructed to avoid impairment to them or contamination from them during flooding.
(H) Any alteration, repair, reconstruction or improvements to a structure in compliance with the provisions of this chapter shall meet the requirements of “new construction” as contained in this chapter.
(I) Base flood elevation data shall be provided for subdivision proposals and other proposed development (including manufactured home parks and subdivisions) which is greater than the lesser of 50 lots or five acres.
(J) Where an existing or proposed structure or other development is affected by multiple flood zones, by multiple base flood elevations or both, the development activity must comply with the provisions of this chapter applicable to the most restrictive flood zone and the highest base flood elevation affecting any part of the existing or proposed structure; or for other developments, affecting any part of the area of the development.
(K) Fill projects that do not involve a structure must be protected against erosion and scour during flooding by vegetative cover, riprap or bulk heading. If vegetative cover is used, the slopes shall be not steeper than three feet horizontal to one foot vertical.
(Ord. 2022-1, passed 3-8-2022)