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FRAME PER STD 405 <br />OPEN GRATE PER SiD 406A <br />SOLID COVER PER STD 4068 <br />VANED GRATE PER SDT 406C <br />2"x4"x8" SOUD BRICK <br />USEO FOR FlNAL ADJUSTMENT <br />TO GRADC 6" HIGH MAX <br />s� OR �2" CONCREfE <br />RISER SECTION <br />CLASS 4000 CONC <br />PRECASi CONC BASE SECTION <br />W/MAX OF ONE 20" KNOCKOUT <br />PER SIDE. ENTRANCE ANGLE <br />TO BE LIMffED BY KNOCKOUTS <br />CLASS 4000 CONC <br />PIPE OUTER DIA PLUS <br />INLET WALL THICKNESS <br />SHALL NOT EXCEED 20" <br />�w �zO `] -t70� <br />- , CITY OF EVERETT <br />'! PUBLIC WORKS <br />ERETT ENGINEERING 8� PUBLIC <br />SF_RVICES DEPARTM[NT <br />� 6,. UR <br />� <br />� <br />12" <br />CATC H BAS I N TYP E A �-80+2004 <br />PER WASDOT/APWA STD PIAN B-1 ,c(.O2 <br />