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(7) CERTIFICATE Or COMPLIANCE - A certification by the Zoning Administrator that a struc- ture, use, or development is in compliance with all provisions of this Ordinance. (8) CHANNEL - A channel is a natural or artificial watercourse with definite bed and banks to confine and conduct the normal flow of water. (9) DEVELOPMENT - Any man-made chance to improved or unimproved real estate, including but not limited to construction of or additions or substantial improvements to buildings, other structures, or accessory uses, the placement of mobile homes, mining, dredging, filling, grading, paving, excavation or drilling operations, deposition of materials. (10) ENCROACHMENT - An encroachment is any fill, structure, building, accessory use, use or development in the floodway. (11) ENCROACHMENT/FLOODWAY LINES - Encroachment lines are limits of obstruction to flood flows. These lines are on both sides of and generally parallel to the stream. The lines are established by assuming that the area landward (outside) of the encroachment lines will be ultimately developed in such a way that it will not be avilable to convey flood flows. (12) EQUAL DEGREE OF HYDRAULIC ENCROACHMENT - the effect of any encroachment into the flood- way must be computed by assuming an equal degree of hydraulic encroachment on the other side of a river or stream for a significant hydraulic reach. This computation assures that property owners up, down or across the river or stream will have the same rights of hydraulic encroachment. Encroachments are analyzed on the basis of the effect upon• hydraulic conveye.:Ice, not upon the distance the encroachment extends into the flood- way. - (13) "EXISTING MOBILE HOME PARK OR. MOBILE HOME SUBDIVISION", means a parcel (or contiguous parcels) of land divided into two or more mobile home lots for rent or sale for which the construction of facilities for servicing the lot on which the mobile home is to be affixed (including, at a minimum, the installation of utilities, either final site grading or the pouring of concrete pads, and the construction of streets) is completed before the effective date of flood plain management regulations adopted by a community. (14) "FLOOD OR "FLOODING" - A general and temporary condition of partial or complete inunda- --_ tion of normally dry land areas from the overflow of inland waters, or the unusual and rapid accumulation or runoff of surface waters from any source. (15) FLOOD FRINGE - The flood fringe is that portion of the flood plain outside of the flood- way, which is covered by flood waters during the regional flood; it is generally asso- ciated with standing water rather than rapidly flowing water. (16) FLOOD HAZARD BOUNDARY MAP - A map prepared by the U.S. Department of Housing and Urban Development, designating areas of special flood hazard within a given community. Flood , - hazard areas are designated as A ZONES. Said map forms the basis for both the regula- tory and insurance aspects of the National Flood Insurance Programs. (17) FLOOD INSURANCE STUDY MAP - A map preapred by the U.S. Department of Housing and Urban Development, designating areas of special flood hazard and flood insurance rate zones . for a given community. Flood hazard and insurance rate zones are designated as A ZONES. Said maps form the basis for the regulatory and/or the insurance aspects of the Nation- al Flood Insurance Program. (18) FLOOD PLAIN - The flood plain is the land which has been or may be hereafter covered by flood water during the regional flood. The flood plain includes the floodway and the flood fringe. (19) FLOOD PROFILE - A graph or a longitudinal profile showing the relationship of the water surface elevation of. a flood event to locations along a stream or river. (20) FLOOD PROOFING - Flood proofing involves any combination of structural provisions, changes, or adjustment to properties and structures subject to flooding, primarily for the purpose of reducing or eliminating flood damage to properties, water and sanitary facilities, structures and contents of buildings in flood hazard areas. (21) FLOOD PROTECTION ELEVATION - The flood protection elevation shall correspond to a point two feet of freeboard above the water surface profile associated with the regional flood , and the official floodway lines. Also see: FREEBOARD (22) FLOODWAY - The floodway is the channel of a river or stream and those portions of the flood plain adjoining the channel required to carry and discharge the-flood water or flood flows associated with the regional flood. (23) FREEBOARD - "Freeboard" is a factor of safety usually expressed in terms of a certain amount of feet above a calculated flood level. Freeboard compensates for the many un- known factors that contribute to flood heights greater than the height calculated. These unknown factors include, hut are not limited to, ice jams, debris accumulation, wave action, obstruction of bridge openings and floodways, the effects or urbanization on the hydrology of the watershed, loss of flood storage areas due to development and angradation of the river or stream bed. (24) "LAND USE" - any "development" as defined in 10.59 (a) (9) . (25) MOBILE HOME - A structure transportable in one or more sections, which is built on a permanent chasis and designed to be used with or without a permanent foundation when connected to the required utilities. For the purpose of this Ordinance it does not in- clude recreational vehicles or trave] trailers. (26) NONCONFORMING USE - A nonconforming use is an existing lawful use of a structure, buil ing or.accessory use which is not in conformity with the provisions of the flood plain zoning ordinance for the area of the flood plain which it occupies. i_ _ - 10 - •