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<br />------------------- <br /> <br />~ <br /> <br />1 00 - YEAR FLOOD PLAIN <br /> <br />~I <br /> <br /> <br />FLOODWAY I <br />FRINGE .. .. <br /> <br />FLOOD ELEVATION WHEN <br />CONFINED WITHIN FLOODWAY <br />ENCROACHMENT <br /> <br />FLOODWAY <br /> <br />STREAM <br />CHANNEL <br /> <br />FLOODWAY <br />FRINGE <br /> <br />C D <br /> <br /> <br />ENCROACHMENT <br /> <br />/ <br />"/" <br />AREA OF FLOOD PLAIN THAT <"~ <br />COULD BE USED FOR DEVELOPMENT . <br />BY RAISING GROUND <br /> <br />:. <br />~ FLOOD ELEVATION <br />BEFORE ENCROACHMENT <br />OF' FLOOD PLAIN <br /> <br />UNE AB IS THE FLOOD ELEVATION BEFORE ENCROACHMENT <br />UNE CD IS THE FLOOD ELEVATION AFTER ENCROACHMENT <br />SURCHARGE IS NOT TO EXCEED l' (FlA REQUIREMENT) OR LESSER AMOUNT IS SPECIFIED BY STATE. <br />ACTUAL CROSS SECTIONS APPEAR AT DIFFERENT HORIZONTAL AND VERTICAL SCALES <br />FROM THE FLOODWAY SCHEMATIC. <br /> <br />FIGURE 1. Floodway SchematIc <br />