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HomeMy WebLinkAbout235.10 (replaced 2020)1.USE ADJUSTING BLOCKS AS REQUIRED TO BRING FRAME TO GUIDE. 2.METAL PARTS PREFERRED TO BE STAINLESS STEEL, ALUMINIZED STEEL, OR ALUMINUM. ALL OTHER STEEL PARTS MUST BE GALVANIZED WITH TREATMENTS 1, 2, OR 5. 3.MUST BE LOCATED FOR ACCESS BY MAINTENANCE VEHICLES. 4.MAY SUBSTITUTE WSDOT SPECIAL TYPE IV MANHOLE (RCP ONLY). 5.TOP SLAB SHALL BE RATED FOR HS-20 LOADING. 6.ALL GRADE RINGS AND CASTINGS SHALL BE SET IN MORTAR IN ACCORDANCE WITH STANDARD SPECIFICATION 9-04.3. PLAN SECTION STANDARD TYPE 2, 60" DIA. CATCH BASIN (CB) CONCRETE TOP SLAB 36" CMP RISER FRAME LOCKING LID (MARKED "DRAIN") MOUNTED OVER 24" DIA. ECCENTRIC OPENING 36" 24" MAX. 6" 24-INCH BOLT LOCKING RING AND COVER. ADJUSTMENT RINGS AS NECESSARY, PER STANDARD PLAN 204.50 CRUSHED SURFACING TOP COURSE PER WSDOT STD. SPEC 9-03.9(3) COMPACTED TO 95% MAX DENSITY (TYP.) MANHOLE STEPS, 12" O.C. WELD OR BOLT STANDARD MANHOLE STEPS DETENTION TANK RISER, 36" DIA. MIN., SAME MATERIAL AND GAUGE AS TANK WELDED OR FUSED TO TANK NOTES: LADDER MAINTAIN 1" GAP BETWEEN BOTTOM OF SLAB AND TOP OF RISER. PROVIDE PLIABLE GASKET TO EXCLUDE DIRT PLACE CEMENT MORTAR SEAL BETWEEN TOP SLAB AND MANHOLE, SEE NOTE 6 Ø24" DETENTION TANK ACCESS STD. PLAN - 235.10 PUBLIC WORKS DEPARTMENT APPROVED: DATEGregg Zimmerman Public Works Administrator UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS) DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878 9/28/2018 | 9:45 AM PDT