16.52.180   Coastal high hazard areas.
   Within coastal high hazard areas established in Section 16.52.060 the following standards shall apply:
      (a)   All new construction and substantial improvements shall be elevated on adequately anchored pilings or columns and securely anchored to such pilings or columns so that the lowest horizontal portion of the structural members of the lowest floor (excluding the pilings or columns, grade beams and bracing) is elevated to or above the base flood elevation plus 1 foot or design flood elevation, whichever is higher. Wind loading values used shall be those required by applicable state or local building standards.
      (b)   All new construction and other development shall be located on the landward side of the reach of mean high tide.
      (c)   All new construction and substantial improvements shall have the space below the lowest floor free of obstructions or constructed with breakaway walls. Such temporarily enclosed space shall not be used for human habitation and will be usable solely for parking of vehicles, building access or storage.
      (d)   Fill shall not be used for structural support of buildings.
      (e)   Manmade alteration of sand dunes which would increase potential flood damage is prohibited.
      (f)   The floodplain administrator shall obtain and maintain the following records:
         (1)   Certification by a registered engineer or architect that a proposed structure complies with subsection (a) of this section; and
         (2)   The elevation (in relation to mean sea level) of the bottom of the lowest structural member of the lowest floor (excluding pilings or columns) of all new and substantially improved structures, and whether such structures contain a basement.
(Ord. 5566 § 8, 2022: Ord. 4557 § 11, 1999: Ord. 3795 § 7 (part), 1988)