Ordinance 3766-20 - Laserfiche WebLink

installations,waste water treatment facilities, and installations which produce, use, or store hazardous materials or hazardous waste. N. "Density fringe area"means that portion of the special flood hazard area of the lower Snohomish River in which floodway areas cannot reasonably be established and in which development is regulated by maximum development density criteria. 0. "Development" means any man-made change to improved or unimproved real estate,including but not limited to buildings or other structures, mining,dredging,filling,grading, paving, excavation or drilling operations or storage of equipment or materials located within the area of special flood hazard. P. "Elevation Certificate" means an administrative tool of the National Flood Insurance Program(NFIP)that can be used to provide elevation information,to determine the proper insurance premium rate,and to support a request for a Letter of Map Amendment(LOMA)or Letter of Map Revision based on fill (LOMR-F). Q. "Elevated Building" means,for insurance purposes,a non-basement building that has its lowest elevated floor raised above ground level by foundation walls,shear walls, post, piers, pilings,or columns. R. "Essential Facility" means the same as"Essential Facility"defined in ASCE 24.Table 1-1 in ASCE 24-14 further identifies building occupancies that are essential facilities. S. "Existing Manufactured Home Park or Subdivision" means a manufactured home park or subdivision for which the construction of facilities for servicing the lots on which the manufactured homes are to be affixed (including,at a minimum,the installation of utilities,the construction of streets,and either final site grading or the pouring of concrete pads) is completed before the effective date of the floodplain management regulations adopted by the community. T. "Expansion to an Existing Manufactured Home Park or Subdivision" means the preparation of additional sites by the construction of facilities for servicing the lots on which the manufactured homes are to be affixed (including the installation of utilities,the construction of streets, and either final site grading or the pouring of concrete pads). U. "Farmhouse" means a single-family dwelling located on a farm site where resulting agricultural products are not produced for the primary consumption or use by the occupants and the farm owner. V. "Flood"or"Flooding" means: 1. A general and temporary condition of partial or complete inundation of normally dry land areas from: a) The overflow of inland or tidal waters. b) The unusual and rapid accumulation or runoff of surface waters from any source. c) Mudslides(i.e., mudflows)which are proximately caused by flooding as defined in paragraph(1)(b)of this definition and are akin to a river of liquid and flowing mud on the surfaces of normally dry land areas, as when earth is carried by a current of water and deposited along the path of the current. 2. 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, accompanied by a severe storm,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 in paragraph(1)(a)of this definition. W. "Flood elevation study" means an examination,evaluation and determination of flood hazards and, if appropriate, corresponding water surface elevations,or an examination, evaluation and determination of mudslide(i.e., mudflow)and/or flood-related erosion hazards.Also known as a Flood Insurance Study(FIS). X. "Flood Insurance Rate Map(FIRM)" means the official map of a community, on which the Federal Insurance Administrator has delineated both the special hazard areas and the risk premium zones applicable to the community.A FIRM that has been made available digitally is called a Digital Flood Insurance Rate Map (DFIRM). Y. "Floodplain"or"flood-prone area" means any land area susceptible to being inundated by water from any source.See"Flood or flooding." Z. "Floodplain administrator" means the community official designated by title to administer and enforce the floodplain management regulations. 23