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October 20, 2008 (Regular Meeting) Page 1017
<br />construction to be used are in accordance with accepted standards of practice
<br />for meeting the provisions of paragraphs (e)(9) (i) and (ii) of this section.
<br />(5) Provide that all new construction and substantial improvements
<br />within Zones V1-30, VE, and V on the community's FIRM have'.. the space below
<br />the lowest floor either free of obstruction or constructed with non-
<br />supporting breakaway walls, open wood lattice-work, or insect screening
<br />intended to collapse under wind and water loads without causing collapse,
<br />displacement, or other structural damage to the elevated.. portion of the
<br />building or supporting foundation system. For the purposes of this section, a
<br />breakway wall shall have a design safe loading resistance of not less than 10
<br />and no more than 20 pounds per square foot. Use of breakway walls which
<br />exceed a design safe loading resistance of 20 pounds per square foot (either
<br />by design or when so required by local or State codes) may be permitted only
<br />if a registered professional engineer or architect certifies ',that the designs
<br />proposed meet the following conditions:
<br />(i) Breakaway wall collapse shall result from a water load less than
<br />that which would occur during the base flood; and,
<br />(ii) The elevated portion of the building and supporting foundation
<br />system shall not be subject to collapse, displacement, or other structural
<br />damage due to the effects of wind and water loads acting simultaneously on
<br />all building components (structural and non-structural). Water loading values
<br />used shall be those associated with the base flood. Wind loading values used
<br />shall be those required by applicable State or local building standards. Such
<br />enclosed space shall be useable solely for parking of vehicles, building
<br />access, or storage.
<br />(6) Prohibit the use of fill for structural support of buildings within
<br />Zones V1-30, VE, and V on the community's FIRM; '..
<br />(7) Prohibit man-made alteration of sand dunes and mangrove stands
<br />within Zones V1-30, VE, and V on the community's FIRM which would increase
<br />potential flood damage.
<br />(8) Require that manufactured homes placed or substantially improved
<br />within Zones V1-30, V, and VE on the community's FIRM on sites
<br />(i.) Outside of a manufactured home park or subdivision,
<br />(ii) In a new manufactured home park or subdivision, '.
<br />(iii) In an expansion to an existing manufactured home park or
<br />subdivision, or
<br />(iv) In an existing manufactured home park or subdivision on which a
<br />manufactured home has incurred " substantial damage" as the result of a
<br />flood, meet the standards of paragraphs (e)(2) through (7) of this section
<br />and that: manufactured homes placed or substantially improved on other sites
<br />in an existing manufactured home park or subdivision within, Zones VI-30, V,
<br />and VE on the community's FIRM meet the requirements of paragraph (c) (12) of
<br />this section.
<br />(9) Require that recreational vehicles placed on sites within Zones V1-
<br />30, V, and VE on the Community's FIRM either
<br />(i) Be on the site for fewer than 180 consecutive days,..
<br />(ii) Be fully licensed and ready for highway use, or
<br />(iii) Meet the requirements in paragraphs (b)(1) and.(e) (2) through
<br />(7) of this section. A recreational vehicle is ready for hj.ghway use if it
<br />is on i'ts wheels or jacking system, is attached to the site only by quick
<br />disconnect type utilities and security devices, and has no permanently
<br />attached additions.
<br />(f) When the Administrator has provided a notice of final base flood
<br />elevations within Zones Al-30 or AE on the community's FIRM, and, if
<br />appropriate, has designated AH zones, AO zones, A99 zones, and A zones on the
<br />community's FIRM, and has identified flood protection restoration areas by
<br />designating Zones AR, AR/A1-30, AR/AE, AR/AH, AR/A0, or AR/A, the community
<br />shall:
<br />(1) Meet the requirements of paragraphs (c)(1) through (19) and
<br />(d)(1) through (9) of this section.
<br />(2) Adopt the official map or legal description of those areas within
<br />Zones AR, AR/A1-30, AR/AE, AR/AH, AR/A, or AR/AO that' are designated
<br />developed areas as defined in Sec. 59.1 in accordance with the eligibility
<br />procedures under Sec. 65.14.
<br />(3) For all new construction of structures in areas within Zone AR that
<br />are designated as developed areas and in other areas within Zone AR where the
<br />AR flood depth is 5 feet or less:
<br />(i) Determine the lower of either the AR base flood elevation or the
<br />elevation that is 3 feet above highest adjacent grade; and
<br />(ii) Using this elevation, require the standards of paragraphs (c)(1)
<br />through (14) of this section.
<br />(4) For all new construction of structures in those areas within Zone
<br />AR that are not designated as developed areas where the AR flood
<br />depth is greater than 5 feet:
<br />(i) Determine the AR base flood elevation; and
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