“Accessory structures” means low cost buildings such as detached garages, boathouses, small pole barns and storage sheds, not to be used for human habitation, shall be constructed and placed on the building site so as to offer minimum resistance to the flow of floodwaters; shall be anchored to prevent flotation.

“Critical facility” is a facility for which even a slight chance of flooding might be too great. Critical facilities include, but are not limited to, schools, nursing homes, hospitals, police, fire and emergency response installations, installations which produce use or store hazardous materials or hazardous waste.

“Coastal high hazard area” means the area subject to high velocity waters due to wind, tidal action, storm, tsunami or any similar force, acting singly or in any combination resulting in a wave or series of waves of sufficient magnitude, velocity or frequency to endanger property and lives.

“Development” means any manmade change to improved or unimproved real estate, including but not limited to buildings or other structures, mining, dredging, filing, grading, paving, excavation or drilling operations or storage of equipment or materials located with the area of special flood hazard.

“Elevated building” means for insurance purposes, a nonbasement building which has its lowest elevated floor raised above ground level by foundation walls, shear walls, posts, piers, pilings and columns.

“Federal Insurance Administration (FIA)” means the federal division responsible for administration of the National Flood Insurance Program.

“Flood hazard area” includes all the area within the corporate limits subject to the 100-year flood as delineated on the flood hazard boundary map or the flood insurance rate map for the borough published by the Federal Insurance Administration; flood hazard area includes the coastal high hazard area where applicable.

“Flood hazard boundary map (FHBM)” means the map of the municipality issued by the Federal Insurance Administration which delineates the area subject to the 100-year flood. This area is identified as the “special flood hazard area” on the map.

“Flood insurance rate map (FIRM)” means the map of the municipality issued by the Federal Insurance Administration which delineates the area subject to the 100-year flood, the water surface elevation of the 100-year flood and the flood insurance rate zones.

“Flood-related erosion” means the collapse or subsidence of land along the shore of a lake or other body of water as a result of 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 a flash flood or an abnormal tidal surge, or by some similarly unusual and unforeseeable event which results in flooding.

“Lowest floor” means the lowest floor of the lowest enclosed area (including basement). An unfinished or flood resistant enclosure, usable solely for parking of vehicles, building access or storage, in an area other than a basement area, is not considered a building’s lowest floor; provided, that such enclosure is not built so as to render the structure in violation of the applicable nonelevation design requirements of this chapter.

“Manufactured home” means a structure, transportable in one 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 a “recreational vehicle.”

“Manufactured home park or subdivision” means a parcel (or contiguous parcels) of land divided into two or more manufactured home lots for rent or sale.

“New construction” means structures for which the “start of construction” commenced on or after the effective date of this chapter.

“One-hundred-year flood” means a flood of magnitude which can be expected to occur on the average of once every 100 years. (It is possible for this size flood to occur during any year. The odds are one to 100 that this size flood will occur during a given year; there is a one percent chance that a flood will occur each year. Statistical analysis of available streamflow or coastal storm records, or analysis of rainfall and runoff characteristics of the watershed, or coastal topography and storm characteristics are used to determine the extent and depth of the 100-year flood.)

“Regulatory flood” is the 100-year flood. For the purpose of this chapter, enacted in 1979, and until more detailed information is available to prove otherwise, the water surface elevation of the regulatory flood in the coastal area of Portage Cove shall be defined as 25 feet above mean lower low water (M.L.L.W.) as shown on the “Flood Plain and Flood Hazards Map” dated June 1989. For those areas along the Chilkat River, the regulatory flood shall be delineated on the flood hazard boundary map.

“Repetitive loss” means flood-related damages sustained by a structure on two separated occasions during a 10-year period for which the cost of repairs at the time of each such flood event, on the average, equals or exceeds 25 percent of the market value of the structure before damage occurred.

“Structure” means a walled and roofed building including a gas or liquid storage tank that is principally above ground.

“Substantial damage” means damage of any origin sustained by a structure whereby the cost of restoring the structure to its predamaged condition would equal or exceed 50 percent of the market value of the structure before the damage occurred.

“Substantially improved” means any remodeling, repair, reconstruction or improvement of a structure, the cost of which equals or exceeds 50 percent of the fair market value of the property either (1) as such value exists before the improvement is started or (2) if the property has been damaged and is being restored, such value existed before the damage occurred.

“Water dependent” means a structure for commerce or industry which cannot exist in any other location and is dependent on the water by reason of the intrinsic nature of its operations such as docking, seafood processing and port facilities associated with marine activities. (Ord. 04-08-075)