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---NEOPRENE FULL <br />FACE FLANGE <br />GASKET <br />HDPE OR SCH - - SS OR EPDXY <br />80 PVC BLIND COATED BACKUP <br />FLANGE RING (TYP) <br />SS NUTS, --' <br />HDPE PIPE <br />BOLTS AND (SIZE VARIES) <br />WASHERS DPE FLANGE <br />ADAPTER <br />BLIND FLANGE ASSEMBLY <br />7 11 NOT TO SCALE <br />R EC �")R J AXP" 4G <br />No Changes !,*I <br />_ ...�...�. <br />'Date <br />Any -y <br />A1! Infc i-.t3tlon By ia'• • -.ting The r'; (if')Vorl <br />AGGREGATE BASE <br />TRACE WIRE <br />NATIVE SOILS <br />MAX COD SIZE 2" <br />HDPE PIPE <br />(SIZE VARIES) <br />SAND PIPE <br />BEDDING <br />NOTE: <br />1. DETAIL FOR PIPES 12" IN <br />SIZE AND GREATER <br />2 PIPE TRENCH DETAIL <br />11 NOT TO SCALE <br />EXISTING 12" <br />EXISTING 12" LFG HEADER----- ;%� NEW 12" LFG HEADER <br />SOIL MOUNDS PIPE BEDDING <br />5 _ _ SEE NOTE 2 <br />5 11 NOT TO SCALE <br />�n 1 2" - 4" HDPE PIPE <br />4 ROAD CROSSING <br />4 11 NOT TO SCALE <br />s PIPE SNAKING DETAIL <br />11 NOT TO SCALE <br />EXISTING 8" HDPE--,,_ <br />HEADER"„%f`t <br />PIPE BEDDING <br />SEE NOTE 2 <br />6 12” PIPE ROAD CROSSING <br />8 11 NOT TO SCALE <br />-u <br />7 2" - 4" PIPE ROAD CROSSING <br />m — - - <br />3 11 NOT TO SCALE <br />r <br />r*t <br />O <br />COUNTY OF SAN JOA VIN NO SCALE FLANGED CONNECTIONS AND <br />ROAD CROSSING DETAILS <br />DRAWN BY DATE/PROJECT ENGINEER DATE CHECKED DATE <br />J. Acevedo B123112 � <br />mnTF.- <br />1. DUE TO THERMAL EXPANSION <br />AND CONTRACTION OF HDPE <br />PIPE, LFG PIPING SHALL BE <br />INSTALLED IN A SNAKED POSITION <br />WITH THE FOLLOWING <br />DIMENSIONS. <br />2 <br />� 1 17 HDPE <br />CONVEYANCE <br />PIPING <br />RESTRAINT SPACING "L" SHALL BE <br />AT THE FOLLOWING FOR SDR -17 <br />PIPE INSTALLED WHEN <br />TEMPERATURE DOES NOT <br />EXCEED 90°F. <br />"L" = 20' FOR 6" DIAMETER PIPING <br />"L" = 24' FOR 8" DIAMETER PIPING <br />"L" = 40' FOR 12" DIAMETER PIPING <br />3. PRE -SNAKING OF PIPE (AY) SHALL <br />BE THE FOLLOWING BASED ON AN <br />INSTALLATION TEMPERATURE <br />BETWEEN 60°F AND 80°F. IF <br />TEMPERATURE IS OUTSIDE THIS <br />RANGE, CONTACT DESIGN <br />ENGINEER FOR CORRECTIONS. <br />AY = 10" FOR 6" DIAMETER PIPING <br />AY = 12' FOR 8" DIAMETER PIPING <br />AY = 20' FOR 12" DIAMETER PIPING <br />NOTES: <br />1. MINIMUM 3" SPACING BETWEEN ALL PIPES. <br />2. BACKFILL MATERIALS TO HAVE NO AGGREGATES LARGER THAN 1" <br />WITHIN 6" OF PIPING. <br />3. THERE ARE 6 ROAD CROSSINGS. THE SOUTHERN 4 CROSSINGS <br />HAVE A COVER OF 6" OR LESS OVER THE EXISTING PIPING. THE <br />NORTHERN 2 CROSSINGS HAVE A COVER THICKNESS OF 48" OVER <br />THE EXISTING PIPES. <br />4. CONTRACTOR TO TRENCH OR REMOVE THE EXISTING SOIL COVER <br />TO INSTALL THE NEW 12" HEADER TO MATCH THE GRADES OF THE <br />EXISTING PIPES. THE PIPES ARE TO BE COVERED WITH THE SAME <br />MATERIAL TO THE PREVIOUS COVER THICKNESS. <br />5. COVER MATERIALS TO BE MOISTURE CONDITIONED AND <br />COMPACTED IN 6" LIFTS. <br />6. AREAS WITH NO EXISTING ROAD CROSSING SHALL BE COVERED <br />WITH A MINIMUM 12" OF COVER MATERIAL <br />2023 LFG SYSTEM IMPROVEMENTS Sheet No. <br />Foothill Sanitary Landfill I 11 of 16 <br />