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<br />(2) The unusual and rapid accumula- <br />ion or runoff of surface waters from <br />y source. <br />(3) Mudslides <I.e., mudflows) which <br />e proximately caused by flooding as <br />eflncd In paragraph (a)(2) of this def- <br />.tlon and are akin to a river of liquid <br />d flowing mud on the surfaces of <br />ormally dry land areas, as when <br />arth is carried by a current of water <br />d deposited along the path of the <br />urrent. <br />(b) The collapse or subsidence of <br />and along the shore of a lake or other <br />ody of water as a result of erosion or <br />dennintng caused by waves or cur. <br />ents of water exceeding anticipated <br />ycllcal levels or suddenly caused by <br />. unusually high water level in a nat- <br />ral body of water, accompanied by a <br />evere storm, or by an unanticipated <br />orce of nature, such as flash flood or <br />abnormal tidal surge, or by some <br />Imllarly unusual and unforeseeable <br />vent which results In flooding as de- <br />Ined In paragraph (a)(I) of this defl- <br />tion. ' <br />I'Flood elevation determination II <br />eans a determlllation by the Admin- <br />stratar of the' water surface elevations <br />f the base flood, that is, the flood <br />evel that has a one percent or greater <br />hanee of occurrence in any given <br />ear. <br />"Flood elevation study" means an <br />xamlnation, evaluation and determl- <br />atioD of flood hazards and, if appro- <br />tiate, corresponding water surface <br />levations, or an examination, cvaIua- <br />Ion and determination of mudsllde <br />I.e., mudflow) and/or flood-related <br />rasion hazards. <br />"Flood Hazard Boundary Mapn <br />FHBM) means an official map of a <br />ommunlty, Issued by the Admlnlstra- <br />or. where the boundaries of the flood, <br />udsllde (i.e., mudflow) related ero- <br />Ion areas having special hazards have <br />een designated as Zones A, M, and/or <br /> <br /> <br /> <br /> <br />"Flood insurance>> means the insur- <br />ce coverage provided under the Pro~ <br /> <br />"Flood Insurance Rate Map" <br />FIRM) means an official map of a <br />ommunlty, on which the Adminlstra- <br />~or has delineated both ,the special <br />azard areas ,and the risk premium <br />,ones applicable to the communityo <br /> <br />.... __..._n, <br /> <br />"Flood Insurance Study" see '".flood <br />elevation study. " <br />"Flood plain n or "flood~prone area" <br />means any land area susceptible to <br />being inundated by water from any <br />source (see definition of "fh,oding"). <br />"Flood plain management" means <br />the operation of an overall program of <br />corrective and preventive measures for <br />reducing flood damage, inclUding but <br />not Umited 'to emergency preparedness <br />plans, flood control works and flood <br />plain management regulations. <br />uFlood plain management regula- <br />tions" mea....<r)..<; zoning ordinances, subdl. <br />vision regulations, building codes, <br />health regulations, special purpose or- <br />dinances (such as a flood plain ordi- <br />nance, grading ordinance and erosion <br />control ordinance) and other applica- <br />tions of police power. The term de- <br />scribes such state or local regulations, <br />In any combination thereof. which <br />provide standards for the purpose of <br />flood damage prevention and reduc- <br />tion. <br />"Flood protection system" means <br />those physical structural works, for <br />which funds have been authorized, ap- <br />propriated, and expended and which <br />have been constructed specifically to <br />modify flOOding In order to reduce the <br />extent of the area within a community <br />subject to a "special flood hazard" and <br />the extent of the depths of associated <br />nooding~ Such a system typically in. <br />eludes hurricane tidal _barriers. dams, <br />reservoirs, levees or dikes. These spe- . <br />clallzed flood modifying works are <br />those constructed In conformance <br />with sound engineering standardso <br />"Flood proofing" means any combi- <br />nation of structural and non-structur- <br />al additions, changes. or adjustments <br />to structures which reduce or elimi- <br />nate flood damage to real estate or 1m. <br />proved real property. water and sani. <br />tary facilities, structures and their <br />contents. <br />uFlood-related erosion" means the <br />collapse or subsidence of land along <br />the shore of a lake or other body of <br />water as a result of undermining <br />caused by waves or currents of water <br />exceeding anticipated cyclical levels or <br />suddenly caused by an unusually high <br />water level In a natural body of water, <br />accompanied by a severe storm. or. by <br />an unanticipated force of nature, such <br /> <br />248 <br /> <br />I <br />J <br />