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OFFSET FRAME GRATE SO THAT <br />RESTRICTOR/POLLUTION DEVICE IS <br />VISIBLE AT EDGY OF OPENING AND <br />DIRECTLY OVER THE LADDER —1 <br />.a26 '% <br />STD. GALV. CB <br />LADDER STEPS <br />WATERTIGHT CLEAN - <br />OUT GATE WITH MIN. <br />8" GAUGE SLIDE <br />2'MIN. <br />INLET <br />PIPE _- <br />MIN. 'r <br />SLOPE <br />5'R t <br />INVERT ELEVATION <br />RF.STRICI'OR PLATE <br />APPROPRIATELY <br />SIZED ORIFICE CUT <br />IN PLATE. NOT <br />REQUIRED IF SYSTEM <br />IS FOR POLLUTION <br />CONTROL ONLY <br />TYPE II CATCH BASIN <br />OR LARGER IF REQUIRED <br />GRATZ ELEV#TI.ON <br />7 <br />ORIFICE <br />�— <br />CHAIN - 2000 CAPACITY <br />SLACK WHEN GATE IS DOWN <br />WELD CHAIN TO CB FRAME <br />0.5' MIN. <br />OVERFLOW ELEVATION - <br />SET TO PROVIDE REQUIRED <br />DETENTION AND ADEQUATE <br />OIL SEPARATION PRO- <br />TECTION <br />OVERFLOW PIPE k OUTLET PIPE <br />MUST HAVE CAPACITY EQUAL TO OR <br />GREATER THAN COMBINED <br />INLET SYSTEM <br />OUTLET PIPE <br />=ai» MINIMUM SLIDE <br />}7J 2' MIN. <br />2' MIN. <br />I <br />NOTE - ALL METAL PARTS AND <br />SURFACES MUST BE MADE OF <br />CORROSION RESISTANT MATERIAL <br />OR GALVANIZED. COMPIETE <br />CORROSION PP.OTECTION MUST RE <br />ASSURED. <br />OUTLET CONTAFOL <br />J <br />