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6 <br />i <br />I <br />100 200 300 <br />GRAFH "2 <br />STANDARD DITCH DESIGN <br />9ASED.ON AREA AND SLOAE <br />OF WATERSWED <br />i <br />~. Q~ <br />'O~ <br />F~ <br /> <br />00 500 600 <br />WATE ED AREA IN ACRES <br />700 <br /> <br />0 <br />0 <br />F <br />4 <br />0 100 <br />