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<br />I' <br /> <br />100 YEAR FLOOD PLAIN <br /> <br />~I <br /> <br />F LOOOWA Y <br />FRINGE <br /> <br /> <br />FLOOD elEVATION WHEN <br />CONFINED WITHIN FLOODWAV <br /> <br /> <br />AREA OF FLOOD PLAIN THAT COULD <br />BE USED FOR DEVELOPMENT BY <br />RAISING GROUND <br /> <br />FLOODWAY <br /> <br />f lOOOWAY <br />fRINGE <br /> <br />STREAM <br />CHANNEL <br /> <br /> <br />D <br /> <br />FLOOD ELEVATION <br />BEFORE ENCROACHMENT <br />ON FLOOD PLAIN <br /> <br />liNE AS IS THE FLOOD ELEVATION BEFORE ENCROACHMENT. <br />LINE CD IS THE FLOOD ELEVATION AFTER ENCROACHMENT. <br />.SUACHARGE IS NOTTO ExceeD 1.0 FOOT (FEMA REQUIREMENT) OR LESSER AMOUNT IF SPECIFIED BY STATE. <br /> <br />Figure 2, Floodway Schematic <br /> <br />5.1 Reach Determinations <br /> <br />Reaches are defined as lengths of watercourses having relatively the <br />same flood hazard, based on the average weighted difference in water- <br />surface elevations between the 10- and 100-year floods. This differ- <br />ence does not have a variation greater than that indicated in the <br />foll owi ng table for more tha n 20 percent of the reach: <br /> <br />Average Difference Between <br />10- and 100-year Floods <br /> <br />Less than 2 feet <br />2 to 7 feet <br /> <br />Variation <br /> <br />0.5 foot <br />1.0 foot <br /> <br />One reach meeti ng the above cri teri a <br />sources of the Town of Buena Vi sta . <br />shown on the Flood Profiles. <br /> <br />5.2 Flood Hazard Factors <br /> <br />wa s requi red for the fl oodi ng <br />The locations of the reach is <br /> <br />The Flood Hazard Factor is used to correlate flood information with <br />insurance rate tables. Correlations between property damage from <br />floods and their assigned FHFs are used to set actuarial insurance <br />premium rate tables based on FHFs from 005 to 200. <br /> <br />12 <br />