28-5.01   General Construction Standards.
   The City-County Planning Commission Zoning Ordinance and Subdivision Regulations as adopted by the City establish a Floodplain District based on the Special Flood Hazard Areas defined in this Chapter and prohibits new construction and substantial improvements within the Floodplain District.  As a result, lowest adjacent grade of a structure is typically above the base flood elevation and floodproofing of structures near Special Flood Hazard Areas is not required.  The City recognizes that Non-Conforming Structures as defined in the Zoning Ordinance do exist.  The following provisions are established in the event new construction and substantial improvements are permitted within the Special Flood Hazard Area.  Applicable portions of these provisions shall also be used when permitting development on parcels of land contiguous to Special Flood Hazard Areas.  In all Special Flood Hazard Areas, the following provisions are required:
   a.   All new construction and substantial improvements shall be adequately anchored to prevent flotation, collapse or lateral movement of the structure resulting from hydrodynamic and hydrostatic loads, including the effects of buoyancy;
   b.   Manufactured homes shall be anchored to prevent flotation, collapse or lateral movement.  Methods of anchoring may include, but are not limited to use of over-the-top or fame ties to ground anchors.  This standard shall be in addition to and consistent with applicable state requirements for resisting wind forces;
   c.   All new construction and substantial improvements shall be constructed with materials and utility equipment resistant to flood damage;
   d.   New construction and substantial improvements shall be constructed by methods and practices that minimize flood damage;
   e.   Electrical, heating, ventilation, plumbing, air condition equipment 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 flooding;
   f.   New and replacement water supply systems shall be designed to minimize or eliminate infiltration of flood waters into the system;
   g.   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;
   h.   On-site waste disposal systems shall be located and constructed to avoid impairment to them or contamination from them during flooding;
   i.   Any alteration, repair, reconstruction or improvement to a structure which is not in compliance with the provisions of this Chapter shall meet the requirements of “new construction” as contained in this Chapter, and;
   j.   Any alteration, repair, reconstruction or improvement to a structure which is not in compliance with the provisions of this Chapter, shall be undertaken only if the non-conformity is not furthered, extended or replaced.