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<br />OrMided Zone <br />. Basements and mobile homes prohibited. <br />. streets aligned and designed to convey entire <br />flood flow. <br />. Use of local dikes to direct flows into <br />streets. <br />. Use of drop structures between homes built on <br />high slopes to prevent excessive erosion. <br />. All management tools must be coordinated with' <br />tools in existing developments. <br />. Whole-fan management tools can be used instead <br />of the above provisions. <br /> <br />. <br /> <br />orientation <br /> <br />to <br /> <br />maximize <br /> <br />flood <br /> <br /> <br />ShMllow Floodinq Zone <br />. Elevation of structures <br />f ill . <br />street <br /> <br />on piles or armored <br /> <br />conveyance. <br />. If up-fan subdivisions use depressed streets or <br />channels to convey floods. these tools must be <br />continued down t~ the fan toe. <br />. Use of drop structures between homes built on <br />high slopes. <br />. Whole-fan management tools can be used instead <br />of the above provisions. <br /> <br />Placement ~ Sinqle structures <br />. In undeveloped areas. can elevate on armored <br />fill or use local dikes provided that no added <br />flood damage to other structures results. <br />In developed areas. local dikes. channels. and <br />armored fill must tie in with existing flood <br />control tools. <br />Elevation on piles should <br />criteria cannot be met. <br />No single placement should <br />channelized zone. <br /> <br />. <br /> <br />. <br /> <br />be <br /> <br />used if <br /> <br />above <br /> <br />. <br /> <br />be allowed <br /> <br />in the <br /> <br />21 <br />