Laserfiche WebLink
5 3A <br /> � <br /> meaning they have in common usage and to give this Chapter its most reasonable <br /> application. <br /> ACCESSORY USE means a use which is incidental and subordinate to the principal <br /> use of the parcel of land on which it is located. <br /> ALLUVIAL FAN means a geomorphologic feature characterized by a cone or fan- <br /> shaped deposit of boulders, gravel, and fine sediments that have eroded from mountain <br /> slopes, transported by flood flows, and then deposited on the valley floors, and which is <br /> subject to flash flooding, height velocity flows, debris flows, erosion, sediment <br /> movement and deposition, and channel migration. <br /> APEX means the point of highest elevation on an alluvial fan, which on undisturbed fans <br /> is generally the point where the major stream that formed the fan emerged from the <br /> mountain front. <br /> APPEAL means a request for a review of the Floodplain Administrator's interpretation of <br /> any provision of this Chapter. <br /> AREA OF SHALLOW FLOODING means a designated AO or AH Zone on the Flood <br /> Insurance Rate Map (FIRM). The base flood depths range from one to three feet; a <br /> clearly defined channel does not exist; the path of flooding is unpredictable and <br /> indeterminate; and velocity flow may be evident. Such flooding is characterized by <br /> ponding or sheet flow. <br /> AREA OF SHALLOW FLOOD HAZARD — See "Special flood hazard zone." <br /> BASE FLOOD means a flood having a one percent (1 %) chance of being equaled or <br /> exceeded in any given year (also called the "100-year flood"). Base flood is the term <br /> used throughout this Chapter. <br /> BASEMENT means any area of the building having its floor subgrade (i.e., below <br /> ground level on all sides). <br /> 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 <br /> to the structural integrity of the building on which they are used or any buildings to which <br /> they might be carried by floodwaters. A breakaway wall shall have a safe design- <br /> loading resistance of not less than ten (10) and no more than twenty (20) pounds per <br /> square foot. Use of breakaway walls must be certified by a registered engineer or <br /> architect and shall meet the following conditions: <br /> A. Breakaway wall collapse shall result from a water load less than that which would <br /> occur during the base flood; and <br /> Atty/Ord/Ord.223 <br /> 102704 3 <br />