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OFFS7ET aAeccrioM
<br />OFFSET MANHOLE BASE
<br />FAR LRETA/Lf PEA' S7AAIDARO NANMIE N,T.S.
<br />CAREFULLY PLACED
<br />NATIVE INITIAL
<br />BACKFILL TO I2"ABO✓- E�'�
<br />�E TOP OF PIPE.
<br />\\�O�\
<br />O \\
<br />FLAT - BOTTOM TRENCH PIPE BEDDED /N 411VIN ZOOS£
<br />NAT/Vf MATERIAL. NATIVE BACKFILL
<br />A TAMPED 70 TOP OF PIPE, BSI, MIN.
<br />COMPACTION. C
<br />CAREFULLY PLACED
<br />NATIVE INITIAL --u
<br />BACKFILL 70 I2"
<br />ABOVE WFOFP//-
<br />FLAT BOTTOM TRENCH. NA71VE PIPE BEDDED /N IMPORTED BfDO/NG
<br />SACKF14L TAMPED TO CENTERLINE 8IN/T1AL BACKFILL MATERIAL 7DLfP7R
<br />OF PIPE, 8.5% M1N. COMPACTION. OF ,� PIPEDIAA', 4"MIN, NATIVE
<br />BACKFILL COMPACTEO TO TOP 0,-PIPE,
<br />B 85% MIN. COMPACTION.
<br />D
<br />DUCTILE IRON PIPE LAYING CONDITIONS
<br />mom
<br />®�-...-.-
<br />.��.�
<br />�......=C...m
<br />�
<br />—.-.-IIIINIIIII
<br />-.-�
<br />MIIIIIIIIIII11.m.m
<br />m.m�
<br />—�
<br />.m
<br />m
<br />* /Q /NCH DIAMETER PVC -LINED DUCTILE IRON PIPE MAY BE USED iv PLACE
<br />OF /5 INCH DIAMETER GRAVITY SEWER PIPE.
<br />• t30 INCH DIAMETER PVC LINED DUCTILE 1R0N PIPE MAY BE USED IN PLACE
<br />OF Z7 /NCH DIAMETER GRAVITY SEWER PIPE.
<br />CLA55 I OR
<br />IMPORTED BE<
<br />E INITIAL BACKFILL
<br />fACTOR = 1.4
<br />TYPE I
<br />PAVEMENT
<br />TOP OF TRENCH — 1�1TOPBACKFILL - - -
<br />.
<br />INTERMED/ATE
<br />BACKFILL —
<br />CAREFULLY PLACED
<br />NATIVE /NIT/AL
<br />BACKFILL
<br />BEDDING
<br />-CAREFULLY PL.
<br />NAT/VE IA1171A
<br />a4CKFIL L
<br />CLASS Z OR IZ
<br />-IMPORTED BfOL
<br />1111171,41 64CKR44
<br />SUAIIERPIP
<br />:ARGER PIPE
<br />WCTOR•I.9 BEDDING FACTOR = Z.2 REDO,
<br />TYPE 2 TYPE 3
<br />RIGID PIPE (VCP OR RCP) BEDDING TYPES
<br />ING TEMPORARY PAVING REQUIREMEAI
<br />NEW PAVEMENT TO 6E VC"H16HET
<br />THAN ALVACEAIT PAVEMENT.
<br />SAWCOT PAVEMENT
<br />8gg EXISTING PAVEMENT sp
<br />II SECTION
<br />RELATIVE COMPACTION 95
<br />COMPACT IAl B" MAX. LAYERS
<br />TO 90 % RELATIVE COMPACTION
<br />COMPACT BY TAMPING /N 8'MAX.
<br />LAYERS OR BY JETTING IN IO'
<br />MAX. LIFT$. SEE SPECIFICATIONS
<br />FOR COMPACTION REQU/REMENTS.
<br />SEDD/NG t IN/T/AL
<br />WIDTH AT TOP OF P/PE•
<br />BACKFILL CSEE
<br />_
<br />q 0. D. r /6 - M/N.
<br />SPEC/F/CATIOAIS FOR
<br />-
<br />0 D . 24' MAX.
<br />COMPACTION REQU/RE-
<br />MENTS.�
<br />CHANGE !N BEDDING TYPE
<br />OR P/PE 5TRENG714 MAY
<br />SPRING L/NE —
<br />-- O.O. _ -
<br />/ BE REQU/RED IF MAX/MUM
<br />WIDTH IS EXCEEDED.
<br />HAUNCH/A/G AREA-
<br />BEDDIAIG
<br />TYPICAL
<br />TRENCH SECTION
<br />NOTE : USE CLASS I OR m: IMPORTED BEDDIAIG F BACKFILL MATERIAL
<br />TO 20' DESIGN DEPTH i USE CLASS I ONLY FOR DESIGN DEPTH GREATER
<br />THAN 20'.
<br />IMPORTED B£DD/NG E.
<br />BACKFILL MATERIAL.
<br />EXTEND TO UNDISTURBED ti
<br />TRENCH WALL OR MIN 0
<br />7/p PIPE DIAMETERS ON t q
<br />EACH SIDE OF PIPE,
<br />HAUNCHING AREA
<br />BEDDING 2 4'rOR LB "DIAM. f LESS
<br />G"FOR 27"DIAM.
<br />PVC SOLID WALL OR PROFILE WALL PIPE Q
<br />ABS SOLID WALL AND COMPOSITE WALL PIPE
<br />BEDDING AND INITIAL BACKFILL
<br />ALL DESIGN DEPTHS
<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-1, M-1
<br />I-2,II-I, M-1
<br />5
<br />6
<br />7
<br />I-2, II-2, III -I
<br />8
<br />I-3, II-2, III-1
<br />9
<br />I-4, II-2,11H
<br />I-4,II-3,III-2
<br />10
<br />I-4, II-3, III-2
<br />I-5A, II-4, III-2
<br />II
<br />12
<br />1-5A, II-4, M-2
<br />1- 5A, II-4, III-3
<br />13
<br />I-5B,II-5A,III-3
<br />14
<br />I- 5 B, II- 5A, III- 4, IV- 2
<br />15
<br />I-5A, II-4, III-3
<br />16
<br />I-58,II-5A,IU-3
<br />I-58,II-5EIJ11-4, W-2
<br />17
<br />1-5B,II-5B,III-5A,lV-2
<br />ROMAN NUMERAL INDICATES CLASS OF REINFORCED CONCRETE PIPE.
<br />ARABIC NUMERAL INDICATES BEDDING TYPE.
<br />USE CLASS I OR III IMPORTED BEDDING 9 BACKFILL MATERIAL.
<br />W,H£NEUER THE SPAN, WHETHER CAUSED BY
<br />TRENCH W/OTH OR CROSSING ANGLE OF THE
<br />UTILITY CROSSING P/PE EXCEEDS 5' 0," PLACE
<br />IMPORTED BEODINC OR BACKFILL MATERIAL
<br />TO 6'ASOV£THE P/Pf AND /B"EACHS/DE OF
<br />ITS CENTERLINE. _
<br />S= 0COMPRESSION COUPLING
<br />- - Min. WITH PROPER ADAPTER.
<br />1B"Mrn
<br />,MAX. CLEARANCE _ LATERAL SEWER OR
<br />SERVICE SEWER.
<br />CLASS III
<br />W /MPOVE0 BEDDING AND
<br />BACKFILL MATERIAL.
<br />!NSlDf D/AMETEK OF UTILITY
<br />F CROSSINO PIPE TO BETHM f SAE AS
<br />CLzE.lAN CUT UNDAMAGED NO A, SIDE SEWER PIPE 70 A THE PIP£ TO WHICH /T CONNECTS.
<br />F,� ,r
<br />WITH MECHANICAL P!➢£ NEW PIPELINE
<br />CUTTER.
<br />REPLACEMENT OF LATERAL OR SERVICE SEWER
<br />AT TRENCH CROSSING
<br />THIS DETAIL SHALL APPLY WHENEVER AI/EXISTING LATERAL OR
<br />SERVICE SEWER IS CUT OR DAMAGED.
<br />4AFAV11 Y PLACED
<br />ATIVE /INITIAL
<br />Q4CKFIL L
<br />TRANSVERSE
<br />D. `4 (4"MIN)
<br />CONCRETE—�
<br />0.75 aD.
<br />CLASS I O.D. -Z
<br />-IMPORTED BEDDING Q ¢�
<br />/N/TIAL BAC.(FLIL MAT'L.
<br />G fACTOR= 2.7 BEDDING FACTORS:
<br />TYPE5A (RE/A'F. CONC., 0.4STEEL) B.F. -3.6
<br />7'YPE5B(RE/NFCONC., 1.0%STEEL)B.A..-4.B
<br />TYPE 4 TYPE 5A FA 58
<br />�AAAAAAA
<br />.m....mm...mom
<br />�.......-1111=11WIIII
<br />-
<br />�......E'■�11111211111
<br />mm
<br />mmm.-momm
<br />�III_IIIIII-IIIIII.
<br />.I.IIII��
<br />ALLOWABLE BEDDING 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 />1 10
<br />1 12
<br />15
<br />18
<br />27
<br />5
<br />I
<br />I
<br />I
<br />I
<br />I
<br />I
<br />I
<br />6
<br />7
<br />8
<br />9
<br />2
<br />2
<br />10
<br />2JL
<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 />5A
<br />-18
<br />4
<br />5A
<br />19
<br />20
<br />5A
<br />21
<br />22
<br />5A
<br />5B
<br />23
<br />5B
<br />24
<br />25
<br />26
<br />27
<br />USE CLASS I OR III IMPORTED BEDDING d BACKFILL MATERIAL
<br />FOR BEDDING TYPES 1, 2 5 3 ; USE CLASS I ONLY FOR BEDDING
<br />TYPES 4, 5A & 5B.
<br />DATE: 4164
<br />CITY APPROVAL
<br />- EORRE Z. ROUE AIXS
<br />SHEET
<br />SCALE: N/A
<br />DESKMNED D.ANDERSON-
<br />BY
<br />DATE
<br />Im. .- 2 Qom,,.,.:.
<br />GEORGE
<br />S. NOLTE
<br />AND ASSOCIATES
<br />- EAST STOCKTON SANITARY SEWER PROJECT-
<br />151
<br />DRAWN: M. GREEN
<br />°"". 42784 "°` BG94
<br />SOUTH COLLECTION SYSTEM - SCHEDULE E
<br />OF 151 SHEETS
<br />CHECKED:
<br />CDp1TT JOAd11iR
<br />n'' Q
<br />SAN JOSE •
<br />(408) 287-3400
<br />WALNUT CREEK ■
<br />(415) 934-8060
<br />SAN DIEGO ■ SACRAMENTO
<br />(714) 278-9392 (916) 446-5028
<br />JOB NO.
<br />PRQI. EN6R. I. GENNIS
<br />TRENCH AND BEDDING DETAILS
<br />2181- 83-
<br />BY
<br />DATE
<br />REVISIONS
<br />DATE: 201984 R.GE. 17.62
<br />
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