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C. Line temporary ditches with rock, filter fabric, plastic <br />yro?,, , sheeting or jute netting. Do not construct a temporary <br />Exuwhrty W-Zn' ditch at a slope exceeding 15%. <br />d v <br />D. Line permanent ditches with rock, asphalt of concrete. <br />Install a rock lining as shown here. Do not install a rock <br />?. lining on a ditch steeper than 15% slope. <br />?' WN• <br />E. Install an outlet protector or infiltration system at the <br />end of the ditch. <br />2. MATERIALS: <br />? Use rock, filter fabric, plastic sheeting or jute netting for temporary <br />ditches. <br />? Use rock, asphalt or concrete for permanent ditches. <br />3. MAINTENANCE TIPS: <br />? Clean out upstream side of berms after snowmelt or storm event. <br />? Inpect dikes and ditches after each storm. <br />? Re-compact any loose soil on berms and ditches periodically. <br />? Fill gaps and low spots (such as tire tracks across a dike). <br />? If an unlined channel is eroding, line it with a suitable material. <br />? Repair damaged linings immediately. <br />4. TEMPORARY OR PERMANENT USE: Berms and ditches can be <br />temporary or permanent BMPs. <br />9 <br />