18.28.030   DEFINITIONS.
   The purpose of this section is to set forth definitions of certain words, terms and phrases used in this chapter in order to promote consistency and uniformity in their usage, and thereby facilitate interpretation. Words, terms and phrases not specifically defined in this section shall, for purposes of this chapter, be construed and defined as set forth in Section 17.28.030 (Definitions) of Chapter 17.28 (Flood Hazard Reduction) of the Anaheim Municipal Code.
   .010   "B" Words, Terms and Phrases.
      "Base Flood.” The amount of water generated from runoff of a storm, and having a one percent (1%) chance of being equaled or exceeded in any given year (also called the "100-Year Flood").
      "Base Flood Elevation” ("BFE"). The water surface elevation of the base flood in relation to the North American Vertical Datum of 1988 ("NAVD").
   .020   "D" Words Terms and Phrases.
      "Design Flood.” The flood against which protection is to be provided by means of land use regulation, or flood protective or flood control works. When a federal flood control project has been authorized, the design flood will be that defined by the cognizant agency. In all other cases, the design flood shall be either at the 100-year recurrence interval (base flood) or, when determined applicable by the City of Anaheim, the standard project flood.
      "Designated Flooding.” The channel of a stream and that portion of the adjoining floodplain required to reasonably provide for the construction of a project for passage of the design flood, including the lands necessary for construction of project levees.
   .030   "F" Words, Terms and Phrases.
      "Flood Insurance Rate Map” ("FIRM"). The official map on which the Federal Emergency Management Agency or Federal Insurance Administration has delineated both the areas of special flood hazards and the risk premium zones applicable to the community.
      "Flood” or “Flooding.” A general and temporary condition of partial or complete inundation of normally dry land areas from: (a) the overflow of flood waters; (b) the unusual and rapid accumulation or runoff of surface waters from any source; or (c) the collapse or subsidence of land along the shore of a lake or other body of water as a result of erosion or undermining caused by waves or currents of water exceeding anticipated cyclical levels or suddenly caused by an unusually high water level in a natural body of water, or by an unanticipated force of nature, such as flash “Flood” or an abnormal tidal surge, or by some similarly unusual and unforeseeable event which results in “Flooding,” as defined herein.
      "Floodplain." Any land areas susceptible to flood or flooding.
      "Floodway." The channel of a river or other watercourse and the adjacent land areas that must be reserved, in order to discharge the base flood without cumulatively increasing the water surface elevation more than one (1) foot. Also referred to as the "Regulatory Floodway."
   .040   "M" Words, Terms and Phrases.
      "Manufactured Home." A structure, transportable in one (1) or more sections, which is built on a permanent chassis, and is designed for use with or without a permanent foundation when attached to the required utilities. The term "Manufactured Home" does not include recreational vehicle.
   .050   "R" Words, Terms and Phrases.
      “Recreational Vehicle.” A vehicle which is: (a) built on a single chassis; (b) four hundred (400) square feet or less, when measured at the largest horizontal projections; (c) designed to be self-propelled or permanently towable by a light duty truck; and (d) designed primarily for use not as a permanent dwelling, but as temporary living quarters for recreational, camping, travel or seasonal use.
   .060   "S" Words, Terms and Phrases.
      “Special Flood Hazard Area” ("SFHA"). The land in the floodplain within the City subject to a one percent (1%) or greater chance of flooding in any given year. This area is designated as Zone A, AO, AE or AH on the FIRM.
      “Structure.” A walled and roofed building, a gas or liquid storage tank, and/or a manufactured home that is principally above ground and permanently affixed to a site.
      “Substantial Damage.” Damage of any origin sustained by a structure, whereby the cost of restoring the structure to its before-damaged condition would equal or exceed fifty percent (50%) of the market value of the structure before the damage occurred. “Substantial Damage” also means flood-related damage sustained by a structure on two (2) separate occasions during a ten (10) year period, for which the cost of repairs at the time of each such flood event, on the average, equals or exceeds twenty-five percent (25%) of the market value of the structure before the damage occurred.
      “Substantial Improvement.” Any reconstruction, rehabilitation, addition, other proposed new development of a structure or other improvements, the cost of which equals or exceeds fifty percent (50%) of the market value of the structure before the start of construction of the improvement. This term includes structures which have incurred substantial damage, regardless of the actual repair work performed. The term does not, however, include either: (a) any project for improvement of a structure to correct existing violations or state or local health, sanitary, or safety code specifications which have been identified by the local code enforcement official and which are the minimum necessary to assure safe living conditions; or (b) any alteration of a historic structure, provided that the alteration will not preclude the structure's continued designation as a historic structure. (Ord. 5920 § 1 (part); June 8, 2004.)