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Y- <br /> 2"x6" keyway <br /> cast into wall <br /> by supplier <br /> F <br /> Baffle wall q <br /> must be <br /> poured in 2.5' 2.5' <br /> place �lev.= xxx.x <br /> xx" Dia. hole xx" � hole in <br /> in baffle wall baffle wall <br /> Skimmer additional #4'S <br /> opening x 4'-0" long <br /> See STO-17 #4 C� 12" <br /> For grate q horizontal <br /> design see <br /> STO-17 Hole for I v.= xxx.x <br /> xx" RCP #4 � 12" <br /> SKIMMER vertical <br /> G RAT E S ECTI O N A—A <br /> CONCRETE BAFFLE WALL <br /> xx" dia. hole in � <br /> baffle wall <br /> 1 ' <br /> Elev.=xxx.x >> <br /> Hole for xx Dia. <br /> Elev.=xxx.x r— � outlet pipe <br /> Outlet Elev. When feasible, set invert <br /> Elev.=xxx.x , for outlet pipe below the <br /> 0.5 designed normal water <br /> 5' X 1 .5' � � elevation to improve pipe <br /> rnin. opening cover and minimize slope <br /> see STO-17 <br /> 6„ around skimmer. <br /> o � , <br /> 8 CY Class T o <br /> 3 Riprap � O 6„ NOTE: <br /> � When baffle wall height <br /> �OO 5' Dia. t is greater than 3' above <br /> See city plate STO-21 Outlet Elev. the following <br /> shall be re uired: <br /> for riprap placement Aggregate 1 . Steps a <br /> details. (MnDOT Spec. 3149H Mod.) <br /> 2. 6' Diameter MH <br /> STA N DAR D D ETA I LS Last Revision: <br /> � Feb 2006 <br /> i � SKIMMER STRUCTURE WITH <br /> � � CONCRETE BAFFLE WALL <br /> i City Plate No. <br /> , <br /> ;Bonestrao 0 R 0 N 0 , M i N N ES OTA <br /> ----- STO- 19 <br />