§ 154.47 COASTAL HIGH HAZARD AREAS (ZONES VE AND V1-30).

   (A)   Coastal high hazard areas are special flood hazard areas established in § 154.07, and designated as Zones VE.

   (B)   These areas have special flood hazards associated with high velocity waters from storm surges or seismic activity and, therefore, in addition to meeting all requirements of this chapter with the exception of floodway and non-encroachment area provisions (Article 5, Section F), the following provisions shall apply:

      (1)   All new construction and substantial improvement shall:

         (a)   Be located landward of the reach of mean high tide;

         (b)   Be located landward of the first line of stable natural vegetation; and

         (c)   Comply with all applicable CAMA setback requirements.

      (2)   All new construction and substantial improvements shall be elevated so that the bottom of the lowest horizontal structural member of the lowest floor (excluding pilings or columns) is no lower than the regulatory flood protection elevation. Floodproofing shall not be utilized on any structures in coastal high hazard areas to satisfy the regulatory flood protection elevation requirements.

      (3)   All new construction and substantial improvements shall have the space below the lowest floor free of obstruction so as not to impede the flow of floodwaters, with the following exceptions:

         (a)   Open wood latticework or insect screening may be permitted below the regulatory flood protection elevation for aesthetic purposes only and must be designed to wash away in the event of abnormal wave action and in accordance with § 154.46(D)(4)(a). Design plans shall be submitted in accordance with § 154.31(A)(4)(c)2.; or

         (b)   Breakaway walls may be permitted provided they meet the criteria set forth in § 154.46(D)(2). Design plans shall be submitted in accordance with § 154.31(A)(4)(c)1.

      (4)   All new construction and substantial improvements shall be securely anchored to pile or column foundations. All pilings and columns and the structures attached thereto shall be anchored to resist flotation, collapse, and lateral movement due to the effect of wind and water loads acting simultaneously on all building components.

         (a)   Water loading values used shall be those associated with the base flood.

         (b)   Wind loading values used shall be those required by the current edition of the State Building Code.

      (5)   A registered professional engineer or architect shall certify that the design, specifications, and plans for construction are in compliance with the provisions contained in § 154.31 and divisions (B)(3)(a), (B)(3)(b), (B)(4) above, and (B)(6) below on the current version of the state’s National Flood Insurance Program v-zone certification form.

      (6)   (a)   Fill shall not be used for structural support.

         (b)   Limited non-compacted and non-stabilized fill may be used around the perimeter of a building for landscaping/aesthetic purposes provided it is demonstrated though coastal engineering analysis that the proposed fill would not result in any increase in the base flood elevation and not cause any adverse impacts by wave ramping and deflection to the subject structure or adjacent properties.

      (7)   There shall be no alteration of sand dunes which would increase potential flood damage.

      (8)   (a)   No manufactured homes shall be permitted except in an existing manufactured home park or subdivision.

         (b)   A replacement manufactured home may be placed on a lot in an existing manufactured home park or subdivision provided the anchoring and elevation standards of this chapter have been satisfied.

      (9)   Recreational vehicles may be permitted in coastal high hazard areas provided that they meet the recreational vehicle criteria of § 154.46(F)(1) and the temporary structure provisions of § 154.46(G).

(Ord. passed 5-25-2006) Penalty, see § 154.99