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approximate methods. Because detailed hydraulic analyses are not performed for <br /> such areas, base flood elevations or depths have not been determined within this <br /> zone. <br /> [(~j] "Zone AE" is the special flood hazard area that corresponds to the <br /> one-hundred-year floodplains that aze determined in the Flood Insurance Study by <br /> detailed methods. Whole-foot base flood elevations derived from the detailed <br /> hydraulic analyses have been determined at selected intervals within this zone. <br /> "Zone AH" is the special flood hazard area that corresponds to the areas of <br /> one-hundred-year shallow flooding (usually areas of ponding) where average <br /> depths are between one and three feet. Whole-foot base flood elevations derived <br /> from the detailed hydraulic analyses have been determined at selected intervals <br /> within this zone. <br /> "Zone AO" is the special flood hazard area that corresponds to the areas of <br /> one-hundred-year shallow flooding (usually sheet flow on sloping terrain) where <br /> average depths are between one and three feet. Average whole-foot depths <br /> derived from the detailed hydraulic analyses have been determined within this <br /> zone. <br /> [(~8j] "Zone A99" is the special flood hazard azea where enough progress has <br /> been made on a protective system, such as dikes, dams, and levees, to consider it <br /> complete for insurance rating purposes. Base flood elevations have not been <br /> determined for azeas designated as Zone A99. <br /> "Zone D" corresponds to unstudied areas where flood hazards are undetermined, <br /> but possible. <br /> [(69j] "Zone V" is the special flood hazard area that corresponds to the <br /> one-hundred-year coastal floodplains extending from offshore to the inland limit <br /> of a primary frontal dune along an open coast and any other area subject to high <br /> <br /> velocity wave action from storms or seismic sources. It is an area subject to high <br /> <br /> velocity waters, including coastal and tidal inundation or tsunamis. Base flood <br /> <br /> elevations have not been determined for areas designated as Zone V. <br /> [(~9~] "Zone VE" is the special flood hazard area that corresponds to the <br /> <br /> one-hundred-year coastal floodplains extending from offshore to the inland limit <br /> <br /> of a primary frontal dune along an open coast and any other area subject to high <br /> <br /> velocity wave action from storms or seismic sources. It is an area subject to high <br /> <br /> velocity waters, including coastal and tidal inundation or tsunamis. Whole-foot <br /> <br /> base flood elevations derived From the detailed hydraulic analyses have been <br /> <br /> determined at selected intervals within this zone. <br /> "Zone X shaded " a°°~°~°'~°° ° ° "°°a] are areas of[- <br /> moderate flood hazard corresponding to areas of the five-hundred-year <br /> floodplain, areas ofone-hundred-year flooding where average depths are less than <br /> <br /> one foot, areas ofone-hundred-year flooding where the contributing drainage area <br /> is less than one square mile, and areas protected from the one-hundred-year flood <br /> <br /> by levees[; /R\ .....1 Fl...,.J 1..,-...«.7 ...J:«,. t,. ° ..t,.:.7° ..C tl,° C.. ° <br /> <br /> L.....,]«°a . 41.,...J..1.,:.. R°..° Fl.....J °I o.,., r: .J°«~I... 1.....,, ..,.t 1.,.,.« <br /> 12 <br /> <br />