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3. <br />and between planks. You may want to backfill the space behind the wall <br />with surplus soil from excavations. <br />? Slope the ground at base of the wall at a 2% grade away from the wall <br />and stabilize it with vegetation or mulch. If a driveway is located at the <br />base of the wall, pave it up to the wall or install a curb. <br />2. MATERIALS: <br />? Rocks <br />? or treated <br />Redwood <br />cedar <br /> , <br />, <br />wood <br />, L. y.. t- fly* <br />S.% <br /> WNW <br />? Rock-filled baskets (gabions) <br />09 VWW <br /> <br />? Railroad ties <br /> ±xtZ' <br />? Concrete MA-W CK <br />? Steel V=v <br />?JtGI'E x,11\ <br />3. MAINTENANCE: Inspect <br />periodically for erosion, slippage, M"We r <br />sloughing, or other damage. Repair as (0MVt4&) , -? <br />L Wr! <br />needed. ?uwr zEn <br />r:?utn oR ioe <br />4. TEMPORARY OR PERMANENT <br />USE: Slope stabilization can be a temporary or permanent BMP. <br />19 <br />