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Figure 11- UAP Block and Gravel Curb Inlet Protection <br />A <br />Catch basin <br />Back of sidewalk <br />2x4 Wood stud <br />Back of curb Curb inlet <br />Concrete block <br />. •`. <br />Wire screen or <br />filter fabric. <br />nF .- <br />%4 inch (20 mm) A Concrete block <br />Drain gravel Plan View <br />Ponding height <br />M4 inch (20 mm) <br />Drain gravel <br />Overflow <br />r. Curb inlet <br />Wire screen or <br />filter fabric <br />2x4 Wood stud <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 />Figure II-4.2.9 <br />Block and Gravel Curb Inlet Protection <br />DEPARTMENT OF Revised August 2015 <br />ECOLOGYPlease see http://www.ecy.wa.gov/copyright.html for copyright notice including permissions, <br />State of Washington limitation of liability, and disclaimer. <br />2014 Stormwater Management Manual for Western Washington <br />Volume 11- Chapter 4 - Page 363 <br />