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<br />err'
<br />CLASS I OR
<br />IMPORTED BE
<br />& INITIAL 9ACKF/1!
<br />CAREFUL!, PLACED
<br />NAT/VE /A. 'T/AL
<br />BACKFILL
<br />=1.4 BEDDING
<br />TYPE I TYPE 2
<br />-CAREFULLY PLACE
<br />NATIVE /NIT/AL
<br />BACKFILL
<br />CIA66 I OM =
<br />MPORTfO BEDDING f
<br />VlIl,41 BACKf111 MArL.-
<br />BEDDING FACTOR >?.2
<br />CONCRETE •>,' '
<br />l.0
<br />' SMAII ER PIPE
<br />LARGER PIPE TA t
<br />BEDDING FACTOR= ?.7
<br />TYPE 3 TYPE 4
<br />RIGID PIPE (VCP OR RCP) BEDDING TYPES
<br />ALLOWABLE PIPE CLASS/BEDDING TYPE COMBINATIONS
<br />27 INCH NOMINAL DIAMETER
<br />PVC- LINED REINFORCED CONCRETE PIPE
<br />DESIGN
<br />DEPTH (FT.)
<br />TRENCH WIDTH
<br />AT TOP OF PIPE
<br />O.D.+16" TO O.D.+24"
<br />TRENCH WIDTH
<br />AT TOP Of PIPE
<br />GREATER THAN O.D.+24"
<br />4
<br />I-2, II -I, III -I
<br />I-2,II•I, III -I
<br />5
<br />6
<br />7
<br />I-2, II-2,LII-I
<br />I-3,II-2,II[-I
<br />8
<br />i-3, II-2, III-]
<br />9
<br />I-4, II-2,III-I
<br />I-4,II-3,III-2
<br />10
<br />I-4, II-3, III-2
<br />I-5A, Il-4, III-2
<br />II
<br />12
<br />I-5A,II-4,III-2
<br />I-5A,II-4, III-3
<br />13
<br />I-58,II-SA,III-3
<br />14
<br />I-SB, II-5A, III- 4, IY- 2
<br />15
<br />I -SA, II-4, III-3
<br />16
<br />I-58,II-SA,III-3
<br />I-56,II-5B,III-4,IY-2
<br />I7
<br />I-5B,II-5B,III-SA,1Y-2
<br />ROMAN NUMERAL INDICATES CLASS OF REINFORCED CONCRETE PIPE.
<br />ARABIC NUMERAL INDICATES BEDDING TYPE.
<br />USE CLASS I OR III IMPORTED BEDDING EI BACKFILL MATERIAL.
<br />4RffULI Y PLACED
<br />AT/VE INITIAL
<br />BACKFILL
<br />TRANSVERSE 00. -4 (4 "MIN)
<br />STEEL r '
<br />a �
<br />CONCRETE —
<br />CLASS I 01. I
<br />0.7-1 =2
<br />CLA
<br />/PORTED BEDDING 4 4n
<br />'TIAL BACKF!![ MAT'"1
<br />BEDDING FACTORS:
<br />TYPE 5A (,?.'INF. CONC., 0.4STEE!) B.F. =3.4
<br />TYPE 5,6 (REIN,- CONC., I- 0 % STEEL) B. A.. -4. 8
<br />TYPE 5A FA 5B
<br />�AAAAAAA
<br />ALLOWABLE BEDDING TYPES
<br />CAREFULLY PLACED
<br />NATIVE INITIAL
<br />li BACKFILL TO f2"ABO✓— VE mm�mZ
<br />TOP OF PIPE.
<br />0
<br />\\\ \ \ \ w
<br />O \\ O m
<br />\�
<br />W W
<br />i Q
<br />fLAT- BOTTOM TRENCH PIPE BEDDED�IN 4" MIN LOOSE IL
<br />NATIVE MATfRlA1. NATIVEBACXf/LL DEEP LIFT A.C-PAVEMENT REPLACE- WIN m ��
<br />MENT. (SEE SPECIFICATIONS REGARD -
<br />A TAMPED 70 TOP Of PIPE, BS% MIN. /NG TEMPORARY PAVING REOU/REMENrS
<br />COMPACTION. NEW PAVEMENT TD BE Vg'HIGHER
<br />C THAN ADJACENT PAVEMENT. Om Q
<br />SEAL COAT TWO FEET EA. S10E m
<br />..
<br />yNq�
<br />BEYOND NEW PAVEMENT Sq WCUT PAVEMENT J
<br />` �oaoo�o:>2E•e'¢a$8' —EXISTING PgVEMENT
<br />U
<br />II SECT/ON
<br />TOP OF TRENCH) Z'� wu1 —RELATIVE COMPACTION 95
<br />CAREFULLY PLACED TOP BACKFILL COMPACT 1AI 8-MAY. LAYERS
<br />NATIVE INITIAL - Y
<br />E BACKFILL TO Pt" —�' TO 90 G RELATIVE COMPACTION �
<br />ABOVE TOPOFP/PE. O
<br />COMPACT BY TAMPING /N 8"A' Q
<br />..... ... INTERNED/ATE LAYERS OR BY JETTING Al /0'
<br />%• ` BACKFILL MAX. LIFTS. SEE SPECIF/CATIONS U
<br />FLAT BOTTOM TRENCH. NATIVE PIPE BEDDED /N"IMPORTED BfOD/NG FOR COMPACTIOA/ REOUIREMEA/TS. U
<br />BACKFILL TAMPED TO CENTERLINE &INITIAL ,5ACKfILL MATERIAL 7VPFPTH
<br />OF PIPE, 85% MIN. COMPACTION. Of 4 PIPE D/Am, 4'M/N. NATIVE
<br />BACKFILL COMPACTED 70 7OP OF PIPE, BEDObVG E /N/T/AL WIDTH AT TOP OFPIPE
<br />B 85Y MIN. COMPACTION, BACKFILL '(SEE c O.D. s /fo' MIN.
<br />SPECIF/CATIONS FOR D.D . 241 MAX.
<br />DUCTILE IRON PIPE LAYING CONDITIONS COMPACTION REQUIRE CHANGE STREDD/NG TYPE
<br />MENTS.) ORP/PE STRENGTH MAY
<br />SPRING L/NE— -_ O. o. BE REQUIRED /f MAXIM!/M
<br />WIDTH IS EXCEEDED.
<br />HAUNCJI/NG AR61-
<br />1 BEDDING
<br />TYPICAL TRENCH SECTION
<br />WHENEVER THE SPAN, WHETHER CAUSED BY
<br />TRENCH W/OTH OR CROSSING ANGLE Of THE
<br />UTILITY CROSSINGP/PEfXCEEDSS'O; P1ACE
<br />IMPORTED REDOING OR BACXFlC1 MATERIAL
<br />6'ABOV£ THEPIPEANDIB'ENOTE : USE CLASS I OR= IMPORTED BEPPI. P BACKFILL MATERIAL r1l
<br />TS CENTERLINE. TO 20' DESIGN DEPTH I USE CLASS I ONLY FOR DES/GN DEPTH GREATER COMPRESSION COUPLING
<br />THAN ?D'. ."� �"
<br />5=0' WlrH PROPER ADAPTER.
<br />�IB iNm_ ° did.
<br />t MAX. CLEARANCE f �'.' . " LATERAL SEWER OR
<br />SERVICE SEWER.
<br />IMPORTEDBEDD/NGE.�'''
<br />SACKf/Ll MATERIAL. a
<br />y - \\- IMPORTED BLASSP DING AND
<br />EXTEND TO UNDISTURBED
<br />- T
<br />TRENCH WAIL OR MIN.O SACKFIl1 MATERIAL.
<br />2% P/PE DIAMETERS ON
<br />EACH SIDE Of PIPE, f_ I `�I.NSiDf DIAMETER Of wniry
<br />�� • �` CROSSING PIPE TO BE THE SAME AS
<br />HAUNCHING AREA \\� TRIM SIDE SEWER PIPE TO A THE PIPE 70 WHICH IT CONNECTS.
<br />BEDD/NG 4"FOR IS"D/AM. &LESS CLEAN CUT UNDAMAGED END
<br />E W17H MECHANICAL PiDETT
<br />6"FOR 27 "DIAM. CUTTER. NEW PIPELINE
<br />PVC SOLID WALL OR PROFILE WALL PIPE F,� REPLACEMENT OF LATERAL OR.SERVICE SEWER
<br />ABS SOLID WALL AND COMPOSITE WALL PIPE AT TRENCH CROSSING
<br />* /Q INCH DIAMETER PI/C-CINEO DUCTILE IRON PIPE MAY SE USED IN PLACE BEDDING AND INITIAL BACKFILL THIS DETAIL SHALL APPLY WHENEVER AN EXISTING LATERAL OR
<br />OF /5 INCH DIAMETER GRAVITY SEWER PIPE. SERVICE SEWER /S CUT OR DAMAGED.
<br />AIL DESIGN DEPTHS
<br />**30 /NCH DIAMETER PVC LINED DUCTILE IRON PIPE MAY BE USED IN PLACE
<br />Of ?71NCN 01AMETfR GRAVITY SEINER PIPE. I
<br />DATE: 4184 Y APPROVAL OEORK S. NKTE SOCIATES SHEET
<br />SCALE: N/A BY DATE n.: ,, 2 194-.:. -EAST STOCKTON SANITARY SEWER PROJECT- 127
<br />DESIGNED D.ANDERSON o„TE. 4/27164 &Cg 6094 GEORGE S. NOLTE AND ASSOCIATES NORTH COLLECTION SYSTEM — SCHEDULE D OF I27 SHEETS
<br />DRAWN: M. GREEN _ COIN1� AN JOAQOIN
<br />CHECKED: SAN JOSE ■ WALNUT CREEK ■ SAN DIEGO ■ SACRAMENTO JOB NO.
<br />PROJ. ENGR.: I. GENNIS B': — (408) 287-3400 (415) 934-8060 (714) 278-9392 (916) 446-5028 / TRENCH AND BEDDING DETAILS 2181 - 83-
<br />BY DATE REVISIONS DA ULY 20,19e4 R.C.E. 17,462 1
<br />ALLOWABLE REDOING TYPES
<br />EXTRA STRENGTH VITRIFIED CLAY PIPE
<br />TRENCH WIDTH AT TOP OF PIPE GREATER .THAN O.D.+24"
<br />DESIGN
<br />NOMINAL PIPE DIAMETER (INCHES)
<br />DEPTH (FT)
<br />6
<br />8
<br />10
<br />12
<br />I5
<br />18
<br />27
<br />5
<br />I
<br />I
<br />I
<br />I
<br />I
<br />I
<br />1
<br />6
<br />7
<br />e
<br />—-
<br />9
<br />2
<br />2
<br />l0
<br />2
<br />II
<br />2
<br />3
<br />12
<br />2
<br />13
<br />2
<br />3
<br />14
<br />3
<br />4
<br />4
<br />15
<br />4
<br />16
<br />3
<br />17
<br />3
<br />4
<br />5A
<br />SA
<br />- 18
<br />4
<br />5A
<br />19
<br />20
<br />5A
<br />21
<br />22
<br />5A
<br />56
<br />23
<br />SB
<br />24
<br />25
<br />26
<br />27
<br />USE CLASS I OR III IMPORTED BEDDING a BACKFILL MATERIAL
<br />FOR BEDDING TYPES 1,2 9 3; USE CLASS I ONLY FOR BEDDING
<br />TYPES 4, 5A a 56.
<br />
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