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Line 30:
Line 30: − + − ⅓ height of vegetation for infrequently mown swales. + − ½ height of grass for regularly mown swales, to maximum of 75 mm.+ +
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Maximum depth of flow
Maximum depth of flow
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50% height of grass for regularly mown swales, to maximum of 75 mm.
33% height of vegetation for infrequently mown swales.
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