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Figure 11-3.18: Block and Gravel Curb Inlet Protection <br /> A-- <br /> Catch basin <br /> Back of sidewalk <br /> 2x4 Wood stud <br /> - Curb inlet <br /> Back of curb <br /> Concrete block <br /> mom U2 Vie: <br /> e r, «�' ■,"I I,I„I,I!I"I„��A{: Yi. <br /> Wire screen ore► ' <br /> filter fabric : wrg.• <br /> •, • <br /> 3/4 inch(20 mm) A Concrete block <br /> Drain gravel Plan View <br /> Ponding height <br /> 3/4 inch(20 mm) <br /> Drain gravel Overflow <br /> r� N7/A <br /> ,u <br /> - � Curb inlet <br /> ;1 <br /> Wire screen or /�� <br /> filter fabric 2x4 Wood stud '~' 174 vNce <br /> (100x50 Timber stud) <br /> Catch basin <br /> Concrete block <br /> Section A-A <br /> Notes: <br /> 1. Use block and gravel type sediment barrier when curb inlet is located in gently sloping street <br /> segment,where water can pond and allow sediment to separate from runoff. <br /> 2. Barrier shall allow for overflow from severe storm event. <br /> 3. Inspect barriers and remove sediment after each storm event.Sediment and gravel must be <br /> removed from the traveled way immediately. NOT TO SCALE <br /> r/MFM <br /> Block and Gravel Curb Inlet Protection <br /> Revised June 2016 <br /> DEPARTMENT OF <br /> ECOLOGY Please see http://www.ecy.wagov/copyrighthtml for copyright notice including permissions, <br /> State of Washington limitation of liability,and disclaimer. <br /> 2019 Stormwater Management Manual for Western Washington <br /> Volume Il-Chapter 3-Page 362 <br />