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1 1 <br /> S <br /> .o v�� 1. AS ACCEPTABLE ALTERNATIVES TO THE REBAR <br /> 4g•OVV4 PIPE ALLOWANCES <br /> 1W�V*� SHOWN IN THE PRECAST BASE SECTION,FIBERS <br /> 'gC • MAXIMUM (PLACED ACCORDING TO THE WSDOT STANDARD <br /> \/ REINFORCED OR PIPE MATERIAL INSIDE SHALL BE USED SPECIFICATIONS), <br /> THE MINIM M REQUIRED <br /> H HAVING A <br /> DIAMETER MINIMUM AREA OF 0.12 SQUARE INCHES PER FOOT <br /> PLAIN CONCRETE 12" REBAR SHOWN IN THE ALTERNATIVE PRECAST BASE <br /> FRAME AND VANED GRATE SECTION. WIRE MESH SHALL NOT BE PLACED IN THE <br /> ALL METAL PIPE 15" KNOCKOUTS. <br /> *CPSSP 2. THE KNOCKOUT DIAMETER SHALL NOT BE GREATER <br /> (WSDOT STD.SPEC.9-05.20) 12 THAN 20". KNOCKOUTS SHALL HAVE A WALL <br /> 30. 30• SOLID WALL PVC THICKNESS OF 2"MINIMUM TO 2.5"MAXIMUM. <br /> ti0. 20^ (WSDOT STD.SPEC.9-05.12(1)) 15 PROVIDE A 1.5"MINIMUM GAP BETWEEN THE <br /> PROFILE WALL PVC KNOCKOUT WALL AND THE OUTSIDE OF THE PIPE. <br /> 1411•1 <br /> (WSDOT STD.SPEC.9-05.12(2)) 15" AFTER THE PIPE IS INSTALLED,FILL THE GAP WITH <br /> :70\ <br /> S„ JOINT MORTAR IN ACCORDANCE WITH STANDARD <br /> 5 *CORRUGATED POLYETHYLENE WSDOT SPECIFICATION 9-04.3. <br /> STORM SEWER PIPE 3. THE MAXIMUM DEPTH FROM THE FINISHED GRADE <br /> TO THE LOWEST PIPE INVERT SHALL BE 5.5'. <br /> ----...„1:'----2",4 6 12"OR 24" 4. THE FRAME AND GRATE MAYBE INSTALLED WITH <br /> lig THE FLANGE DOWN,OR INTEGRALLY CAST INTO THE <br /> ADJUSTMENT SECTION WITH FLANGE UP. <br /> 5. THE PRECAST BASE SECTION MAY HAVE A ROUNDED <br /> FLOOR,AND THE WALLS MAY BE SLOPED AT A RATE <br /> ONE#3 BAR HOOP FOR 6"HEIGHT OF 1:24 OR STEEPER. <br /> INCREMENT,SPACED EQUALLY <br /> 6. THE OPENING SHALL BE MEASURED AT THE TOP OF <br /> RECTANGULAR ADJUSTMENT SECTION THE PRECAST BASE SECTION. <br /> 7. ALL PICKUP HOLES SHALL BE GROUTED FULL AFTER <br /> THE BASIN HAS BEEN PLACED. <br /> 6,t.-rt . .7,6, .......)000. <br /> X I 1 <br /> 11 <br /> 11 <br /> #3 BAR EACH 4.,,, ' ots,ia CORNER I CORNERACH18"MIN <br /> #3 BAR HOOP I i0..-1 g I�moi`. �- 1 °-. � <br /> 1 <br /> \ ') <br /> a #3 BAR HOOP <br /> �c 11 I i WSDOT STD PLAN B-5.20-01 ACCEPTABLE SUBSTITUTE <br /> III .0®' 4 CITY OF EVERETT <br /> V #3 BAR EACH SIDE ��� 1,41�T PUBLIC WORKS DEPARTMENT <br /> #3 BAR EACH WAY <br /> ALTERNATIVE PRECAST BASE SECTION IHEATHf�"RGRIFFR7I I.UL I°"Milli (§f 6'772617 <br /> PRECAST BASE SECTION ATVIIMEMAKIPC lin <br /> (SEE NOTE 1) CATCH BASIN TYPE 1 402 <br /> c <br /> 1 1 <br />