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<br />Table 4 Water Bar Spacing (feet) for Relative Erosion Hazard Classes <br />Erosion Hazard Class <br />oa ra ~eot xtreme o erate ow <br />< 1 4 <br />>5 <10 75 170 340 520 <br />> 10~ 15 50 100 200 500 <br /> <br />