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{(5)] "Base flood" means the flood having a one percent chance of being [equalled} <br />equaled or exceeded in any given year. [f] It is also called the "one-hundred-year <br />flood"[)]. <br />{(6)] "Base flood elevation (BEE)" means the water surface elevation of the base flood. <br />{(�j] "Basement' means any area of the building having its floor subgrade (below <br />ground level) on all sides. <br />[(8)] "Breakaway walls" are any type of walls, whether solid or lattice, and whether <br />constructed of concrete, masonry, wood, metal, plastic or any other suitable building <br />material which is not part of the structural support of the building and which is designed <br />to break away under abnormally high tides or wave action without causing any damage to <br />the structural integrity of the building on which they are used or any buildings to which <br />they might be carried by [nem] floodwaters. A breakaway wall shall have a safe <br />design loading resistance of not less than ten and no more than twenty pounds per square <br />foot. Use of breakaway walls must be certified by a [registered] licensed structural <br />engineer or architect and shall meet the following conditions: (A) breakaway wall <br />collapse shall result from a water load less than that which would occur during the base <br />flood; and (B) the elevated portion of the building shall not incur any structural damage <br />due to the effects of wind and water loads acting simultaneously in the event of the base <br />flood. <br />"Buffer zones" are areas bordering and within 50 feet of special flood hazard <br />areas with base flood elevations, depth numbers specified in feet on the FIRM or other <br />areas that have been studied and identified with base flood elevations or depth numbers. <br />[(9)] "Coastal high hazard area" - See "Zone V" and "Zone VE." <br />[(10) "Grifie l feat..«e+> means an integral and readily identifiable part of -a 1, Rd <br />..teetion s yste ffl without ...1 ieh the fleed preteetien p ,ided by the entire system. <br />"] "Development" means any man-made change to improved or unimproved real <br />estate, including but not limited to buildings or other structures, mining, dredging, filling, <br />stockpiling, grading, paving, excavation or drilling operations or storage of equipment or <br />materials. <br />[024] "Drainage facility" - See "Watercourse." <br />"Dwelling unit" means one or more rooms designed for or containing or used as <br />the complete facilities for the cooking sleeping and living area of a single -family only <br />and occupied by no more than one family and containing a single kitchen. <br />["] "Encroachment' means the advance or infringement of uses, plant growth, fill, <br />excavation, buildings, permanent structures, or development into a floodplain which may <br />impede or alter the flow capacity of a floodplain. <br />["] "Existing manufactured home park or subdivision" means a manufactured home <br />park or subdivision for which the construction of facilities for servicing the lots on which <br />the manufactured homes are to be affixed (including, at a minimum, the installation of <br />utilities, the construction of streets, and either final site grading or the pouring of concrete <br />pads) is completed before May 5, 1982. <br />