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I, <br />Figure 11-3.26: Cross Section of Sediment Trap <br />Surface area determined <br />at tap of Weir <br />- 1' Min. <br />3.5 - 5' — <br />1.5' Min. <br />Flat Bottom <br />Note: Trap may be formed by berm or by <br />partial or complete excavation. <br />f <br />E <br />;DEPARTMENT OF <br />ECOLOGY <br />State of Washington <br />X" - 1.5" � <br />Washed gravel <br />Geotextile <br />2" - 4" Rock <br />Rip Rap <br />Discharge to <br />stabilized <br />conveyance, <br />outlet, or level <br />spreader <br />NOT TO SCALE <br />Cross Section of Sediment Trap <br />Revised June 2016 <br />Please see http:lhww.ecy. wa.govlcopyright_html for copyright notice including permissions, <br />limitation of liability, and disclaimer. <br />2019 Stormwater Management Manual for Western Washington <br />Volume // - Chapter 3 - Page 386 <br />