2009 Ordinances - Laserfiche WebLink

Home Browse Search

structural member of the lowest floor (excluding the pilings or columns) elevated to or above the base flood level plus one and one-half feet of freeboard. The pile or column foundation and any structure attached thereto shall be anchored to resist floatation, collapse and lateral movement due to the effects of wind and water loads acting simultaneously on all building components. Water-loading values used shall be those associated with the base flood. Wind-loading values llsed shall be those required by applicable state or local building codes. A registered professional engineer or architect shall develop or review the structural design and methods of construction and shall certify that the proposed design and methods of construction are in accordance with accepted standards. (5) All new construction and substantial improvements within V -zone on the flood insurance rate map shall have the space below the lowest floor either free of obstruction or constructed with nonsupporting breakaway walls, open wood lattice-work, or insect screening intended to collapse under wind and water loads without causing collapse, displacement or other structural damage to the elevated portion of the building or supporting foundation system. For the purpose of this section, a breakaway wall shall have a design safe loading resistance of not less than ten and no more than 20 pounds per square foot. Use of breakaway walls which exceed a design safe loading resistance of 20 pounds per square foot (either by design or when so required by local or state codes) may be permitted only if a register professional engineer or architect also certifies that the proposed design also meets the following conditions: a. Breakaway wall collapse shall result from a water load than less that which would occur during the base flood; and b. The elevated portion of the building and supporting foundation system shall not be subject to collapse, displacement or other structural damage due to the effects of wind and water loads acting simultaneously on all building components, both structural and nonstructural. Water-loading values used shall be those associated with the base flood. Wind-loading values used shall be those required by applicable state or local building codes. Such enclosed space shall be usable solely for parking of vehicles, building access or storage. (6) There shall be no alteration of sand dunes which would increase potential flood damage. (7) All recreational vehicles placed in V -zones shall be on site for fewer than 180 consecutive days, be fully licensed and ready for highway use or meet the same standards as for conventional housing in V -zones.