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Trench <br />Document 02-03-0-1 <br />Section: Slope Protection <br />Subject: Silt Fence Fii;er Barriisr <br />♦ # <br />V ; <br />A trench must be excavated approximately 6 inches wide <br />and 6 inches deep along the line of posts and upslope from <br />the barrier. The trench must be backfilled and the soil <br />compacted over the filter fabric. The following illustration <br />shows the construction of a silt fence filter barrier. <br />: SetDcstsaroexcavaTe 3 <br />6* ov 6-n trercn ucscoe <br />♦rom ana aiorg :re <br />of oosts <br />Z wtr«»erc rg*o <br />OOStS. <br />1 Atttcn tht fitter •aofx to <br />wife fence arc exierc n <br />>mo tne trencn. <br />on <br />anocomcacTtnt <br />e«c3waiec son <br />11 <br />p.itef *acnc —• |V| <br />■ Jll <br />ilil <br />Source: MnOOT <br />Illustration: Silt Fence Barrier <br />Date <br />4/89 <br />Page <br />2 of 4