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<br /> <br />,~ " <br /> <br />,'-"'4" <br /> <br />TOP OF BERM <br /> <br />POND INVERT <br />(TRICKLE CHANNEL) <br /> <br /> <br />1'-0" MINIMUM FREEBOARD <br /> <br />100-YEAR WATER SIJRF ACE <br /> <br />EROSION <br />PROTECTION <br /> <br />'" <br /> <br />IOO-YEAR <br />OVERFLOW <br />SPILLWAY <br /> <br /> <br />.' <br /> <br />TRAFFIC RATED GRA TED J <br />INLET CAPACITY GREA TER <br />THAN TWICE 5-YEAR <br />. HISTORICAL DISCHARGE <br /> <br />OUTLET PIPE (12" MIMIMUM <br />- DIAMETER) <br /> <br />SLOPE <br /> <br />.. <br /> <br /> <br />5-i'EAR HISTORICAL CONTROL AT <br />THROA T. ORIFICE PLA TE MA Y BE <br />REQUIRED. SECURE IN PLACE WITH <br />ST AINLESS STEEL BOL TS <br /> <br />TYPE I OUTLET <br /> <br />'" HEADWA TER FOR 5-YEAR <br />HISTORICAL DISCHARGE <br /> <br />1'-0" MINIMUM FREEBOARD <br /> <br />rTOP OF BERM <br />EROSION <br />PROTECTION <br /> <br /> <br />IOO-YEAR WA TER SURF ACE <br /> <br />* <br /> <br />POND INVERT <br />(TRICKLE CHANNEL) <br /> <br />",,, 111=111 <br /> <br />SLOPE <br />~ <br /> <br />OUTLET PIPE (12" MIMIMUM <br />DIAMETER) <br /> <br />~ . ... <br />. . <br /> <br /> <br />5-YEAR HISTORICAL CONTROL AT THROA T. <br />ORIFICE PLATE MAYBE REQUIRED. SECURE <br />IN PLACE WITH STAINLESS STEEL BOL TS <br /> <br />NOTE: <br />PROVIDE AT LEAST 3/8" STEEL ORIFICE <br />PLATE AND 1/4" STEEL TRASHRACK COATED <br />WITH INDUSTRIAL GRADE RUST INHIBITOR PAINT. <br /> <br />TYPE II OUTLET <br /> <br />TRASHRACK REOUIRED <br />CAPACITY GREATER THAN <br />TWICE 5-YEAR HISTORICAL <br />DISCHARGE AT 3:1 <br />MINIMUM SLOPE <br /> <br />TYPE I AND TYPE II OUTLET <br /> <br />FIGURE 11-3 <br /> <br />DATE: JANUARY, 1997 <br />