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<br />flood, IOO-Ye-ar. A ty;:>e of flood, including the water surface <br />elevation and territoriel occupatLm there<'Jf, which can be <br />expected to occur at any time in a given areB based upon recorded <br />historical precipitation and other valid data, but with an <br />averag'''' statistical one pe-rcent chance of being equalled or <br />exceeded during any une year. The term is used interchangeably <br />with a one percent flood or Intermediate Regional Flood (See <br />definition for Intermediate Regional Flood.) <br /> <br />representing one chance in 20 of the- event Qccurring in any year <br />or an average recurrence of once in twenty years. <br /> <br />Reference Point. A numbered <br />location for correlating the <br />throughout the report, Stream <br />points in this ~tlldy. <br /> <br />point identifying a specific <br />data shown in varivus forlOa <br />stationing is used as refer"nce <br /> <br />Flood Crest. The maximum stage or elevation <br />waters of a flood at a given location. <br /> <br />reached <br /> <br />by <br /> <br />the <br /> <br />Right Bank. <br />water course, <br /> <br />The bank on th" right side of a river, <br />looking downstream. <br />natural channel or depression through which water <br />continuously, intermittently or periodically, <br />artificial modification of the natural channel or <br /> <br />stream or <br /> <br />Flood Frequency. (See Pr.:>bnbi.lity.) The <br />interval of specific discharges or wat.,r <br />flooding. <br /> <br />average recurrenc., <br />stages which cause <br /> <br />Stream. Any <br />flows either <br />including any <br />depreasion. <br /> <br />Flo.)d Peak. The <br />given location. <br />flood crest. <br /> <br />maximum instantaneous discharge of a flood at a <br />It uSl.ally occurs at or near the time of the <br /> <br />Floodplain. An ares in and adjacent to a stream, which area is <br />subject to flooding liS the resuit of the occurrence of a lOa-year <br />flood and which area thus i.~ so adverse to past, current, or <br />foreseeable construction or land use as to constitute a <br />significant hazard to public health IInd safety or to property. <br />Flood Profile. A graph showing the relationship of wat.,r surface <br />elevation to location, the latter generally expressed as distance <br />above mouth for a stream of water fl,->wing in an open cnannel. It <br />1s generally drawn to show surfac~' elevativn for the crest of II <br />specific f10o~, hut may be prep<ln'd f,)r conditions at a given <br />time or stage. <br /> <br />flood Sta!l,e, The srage ur eh,vatiun >lL "hid, vv."fiow of ell", <br />natural hanks of a stre.am or body of water begins in the reach or <br />area in which the elevation i", measured. <br /> <br />Intcrroediate Regional flood. A type 'Jf flood, including tn.. <br />water surface elevation and t"rritorial occupation thereof, which <br />can be expected to occur at any time in a given area based upon <br />recorded historical precipitation nnd other valid data, but with <br />an average statistical one perc.,nt chance of being equalled or <br />exceeded during anyone year. Th.' term is used interchangeably <br />with a one percent flood or one hundred y~ar floQo. (S~~ <br />definition for IOO-yellr flood.) <br /> <br />Left Bank. The bank on the left "ide of a river. stream .)r water <br />cour~e a" the observer looks downstream. <br /> <br />Probability. The annual chance <Jf .1ccurrcnce .Jf specific <br />hydrologic events, such as r9infal1 over a specified BreA or peAk <br />discharge at a .sp<'cified l<lcstion expressed in percent, e.g" 5% <br /> <br />-JJ- <br /> <br />-}4- <br />