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TO POSTING DEc 18 sus <br />STANDARD TRENCH SECTION <br />I I SEE STD DWG 610 <br />_ <br />ALTERNATE LAID BACK <br />TRENCH <br />W,/ <br />UPPER LIMIT OF <br />PIPE ZONE <br />/ 0 <br />u <br />CRUSHED SURFACING <br />BASE COURSE LOWER LIMIT OF <br />PIPE ZONE <br />FOUNDA�T ION M{A'8 M5�>; I AL 6 <br />LIMITS OF TRENCH: <br />W = MAXIMUM WIDTH OF TRENCH. FOR PIPES 15" OR LESS IN DIAMETER W - 40". FOR PIPES <br />18" OR GREATER W - 1 1/2 x I.D. + 18'. , <br />BEDDING AND FOUNDATION MATERIALS: _ <br />BEDDING MATERIAL SHALL BE CRUSHED SURFACING BASE COURSE CONFORMING TO SECTION <br />9-03.9(3) OF THE STANDARD SPECIFICATIONS FOR ROAD. BRIDGE AND MUNICIPAL <br />CONSTRUCTION WSDOT/APWA. A <br />FOUNDATION MATERIAL, I-r'REOUIRED SHALL BE CONFORMIN <br />TO SECTION 9-93-44- OF THE STANDARD SPECIFICATIONS FOR ROAD, BRIDGE AND MUNICIPAL <br />CONSTRUCTION WSDOT/APWA. <br />PROCEDURE FOR COMPACTION: <br />PROVIDE UNIFORM SUPPORT UNDER PIPE BARREL. <br />COMPACT BEDDING MATERIAL TO 907. MAXIMUM DENSITY EXCEPT DIRECTLY OVER PIPE. HAND <br />TAMP ONLY. <br />HAND TAMP UNDER HAUNCHES. <br />FOR ADDITIONAL COMPACTION INFORMATION SEE STANDARD DWG 615. <br />—' <br />BEDDING FOR PIPE IN TRENCHES <br />5 <br />611 <br />WEVERETT <br />dalee rrevevisised <br />number <br />CITY OF EVERETT - PUBLIC WORKS DEPARTMENT <br />/IJvo/F/FD <br />