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Chapter 4-Site-Specific Industrial Storm Water &,orPs <br />• Outlet Protection <br />I What Is It <br />Outlet protection reduces the speed of concentrated storm water flows and therefore it reduces <br />erosion or scouring at storm water outlets and paved channel sections. In addition, outlet <br />protection lowers the potential for downstream erosion. This type of protection can be achieved <br />through a variety of techniques, including stone or riprap, concrete aprons, paved sections and <br />settling basins installed below the storm drain outlet. <br />• <br />Pipe Outlet to Fiat Area- <br />No Well-defined Channel <br />MO M A <br />dl <br />_ I y <br />Plan <br />I t I I _ <br />Section AA Filter <br />blanket <br />Pipe Outlet toWe!kdefined <br />Channel <br />A <br />Plan <br />.= as Section AA <br />^;,nr= <br />Filter <br />hlanket <br />FIGURE 4.27 TYPICAL DETAILS FOR ROCK OUTLET <br />PROTECTION <br />(Modified from State of North Carolina, 1988) <br />-q