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Home My WebLink About2493-7.tifI IDI F OPTIONAL OUTSIDE EDGES TO BE EDGE OF CONCRETE ROUNDED D BARS B, a TO 3' R 3• OC •3 TIE BAR --R=ID OF SPUR C f _ tC 4-•6. E BARS A t , J ^ I _ 3'-3* LONG. T L SEE NOTE 2--- - 4-•4 H BARS D BARS --•3 TIE BAR 4 -0 3'-0' LONG 3' OC.f- sEE NOTE 9 B 0-j DETAIL "N" 3-•4 J BARS 4'-8* (RINGS AND COVER NOT SHOWN) LONG 3' OC CON' T. F -� - F ADD'L. BARS 6' OC (SEE NOTE I) TO INSIDE EDGE OF PLAN MANHOLE. SEE NOTE 2 (SHAFT NOT SHOWN) zl ROUND F F J B S _ �36' EDGES PIPE SEAT LEVEL. -SPRING LINE _ A -_A_ C -C 1 TO 3'R --- al II 3/4' SEE NOTE 8 (b) WHERE COVER IS 10'-0' OR LESS. W MEASURED AT THE TOP OF THE RCP MAY 84' 12 1/2' CONPERCSTDE RINGS •4®18' OC INLET MANHOLE FRAME BOTH WAYS, LA_ E BARS N V)f PLAN 324 STREET AND COVER PER 15 I/2' WHEN OZ IS THIS POINT OMIT THIS GRADE - STD. PLAN 630 STEP IN SECTION A -A 16 I/2' STREDETS I/4' 1 9 1/2' 120' 17' 126' H BARS 132' 17 I/2' 3'� R _ 10 3/4' 144' 18- 16' FOR PAVED THE COVER IS LESS THAN 15' AND FOR RCP 39' OR GREATER WHERE THE COVER IS LESS 24 STREETS. 2' -2' 4. BEDDING B SHALL BE COMPOSED OF SAND OR OTHER GRANULAR 8. 3 -EDGE BEARING TEST LOAD FACTOR MATERIAL AND SHALL HAVE A SAND EQUIVALENT VALUE NOT LESS = I.O. I I D B AIRS I PLETED PRIOR TO PLACING THE BALANCE OF THE BACKFILL. THE MANHOLE SHAFT DIMENSION. NESTING OF ROCKS WILL NOT BE PERMITTED. w N P j2'-4-!2'-4- I P _ o PER STD. 5'x2' PIPE m (� PLAN 324---- SEAT i ►a- I I 43=0-.1 - E BARS w 0--- �� TIE BARS uI �+ GRADE POINTS. STEPS SEE NOTE 4 TIE BAR----- S E AR SECTION B -B ROUND F F J B S _ �36' EDGES , -SPRING LINE _ A -_A_ C -C 1 TO 3'R --- 78' II 3/4' 39' (b) WHERE COVER IS 10'-0' OR LESS. W MEASURED AT THE TOP OF THE RCP MAY 84' 12 1/2' CONPERCSTDE RINGS •4®18' OC INLET �45' BOTH WAYS, 96'� ELEVATION PLAN 324 TO BE USED �' APPLIES AT 15 I/2' WHEN OZ IS THIS POINT OMIT THIS 60' OR OVER 5 4 STEP IN SECTION A -A 16 I/2' STREDETS I/4' 1 9 1/2' 120' 17' 126' H BARS 132' 17 I/2' 17 1//2' 69' _ 10 3/4' 144' 18- 16' FOR PAVED THE COVER IS LESS THAN 15' AND FOR RCP 39' OR GREATER WHERE THE COVER IS LESS 1/2' CRUSHED ROCK SHALL BE USED. STREETS. 2' -2' 4. BEDDING B SHALL BE COMPOSED OF SAND OR OTHER GRANULAR 8. 3 -EDGE BEARING TEST LOAD FACTOR MATERIAL AND SHALL HAVE A SAND EQUIVALENT VALUE NOT LESS = I.O. THAN 20 AS SPECIFIED IN SUBSECTION 306-1.2.1 AS AMENDED UN- FOR UNPAVED STREETS TABLE OF VALUES FOR F _ �36' _F D _ F _ A -_A_ C -C 1 I 6 1/2 78' II 3/4' 39' (b) WHERE COVER IS 10'-0' OR LESS. W MEASURED AT THE TOP OF THE RCP MAY 84' 12 1/2' 42' _7' -7 1/2' 90' 13 1/4_ �45' 7 3/44' 96'� 14' - 48' 8- 102' 15 I/2' 51• 8 I/2' 108' 1 16- 6'54 5 4 9' 114' 16 I/2' _ 60: I/4' 1 9 1/2' 120' 17' 126' _6310'� _ 10 I/4• 132' 17 I/2' 17 1//2' 69' _ 10 3/4' 144' 18- SHALL BE MET EXCEPT THAT A GRADATION NO COARSER THAN NO. 4 CONCRETE AGGREGATE OR NO COARSER THAN THE COVER IS LESS THAN 15' AND FOR RCP 39' OR GREATER WHERE THE COVER IS LESS 1/2' CRUSHED ROCK SHALL BE USED. C TOCCT GRADE U-1 SECTION C -C RING SEAT H BARS SEE TABLE VARIABLE E BARS •3 OR •4 TIE BARS J BARS ROUND EDGES TO 3'R TABLE OF VALUES FOR M (SEE NOTE 1) PAVED STREET UNPAVED STREET SECTION - - - ---r-------,--- MAX. _� MIN. MAX. MIN.. _ --A-A- - --2, -10 1/2' 3'-6* ' C -C A II' 8 I/2' 16' - -- 15• AMERICAN PUBLIC *ORKS ASSOCIATION - SOUTHERN CALIFORNIA CHAPTER �IA� C MANHOLE PIPE TO PIPE STA"0A M0 320-0 J� EE Im " MAIN LINE ID = 36 OR LARGER _ A -_A_ C -C 1 UN Wm+ STAMM WCIRC MM FOR PUBM WORKS CONSTI II CTI N 3' -6' 11= 8 1/2' NOTES I. WHEN DEPTH M FROM S•'REET GRADE TO THE TOP OF THE BOX IS LESS THAN 2'-10 1/2" FOR PAVED STREETS OR 3'-6" FOR UNPAVED STREETS, CONSTRUCT SHAFT PER SECTION C -C AND DETAIL "N". DEPTH M MAY BE REDUCED TO AN ABSOLUTE LIMIT OF 6" WHEN LARGER VALUES OF M WOULD REDUCE H IN SECTION C -C TO Y-6" OR LESS. 2. H (IN SECTION A -A AND B -B) SHALL NOT BE LESS THAN 4'-0". BUT MAY BE INCREASED PROVIDED THAT THE VALUE OF M SHALL NOT BE LESS THAN THE MINIMUM SPECIFIED AND THAT THE REDUCER SHALL BE USED. FOR H (IN SECTION C -C) SEE NOTE I. 3. L SHALL BE 4'-0* UNLESS OTHERWISE SHOWN. L MAY BE INCREASED OR LOCATION OF MANHOLE SHIFTED TO MEET PIPE ENDS, BUT ANY CHANGE IN LOCATION OF THE SPUR MUST BE APPROVED BY THE ENGINEER. 4. T SHALL BE 8" FOR VALUES OF H UP TO AND INCLUDING 8'-0* AND 10" FOR VALUES OF H OVER 8'-0". 5. STATIONS OF MANHOLES SHOWN ON PROJECT DRAWINGS APPLY AT CENTER LINE OF SHAFT. ELEVATIONS ARE SHOWN AT CENTER LINE OF SHAFT AND REFER TO THE PROLONGED INVERT GRADE LINES. SEE NOTE 3. 6. REINFORCEMENT SHALL CONFORM TO ASTM A 615. GRADE 40, AND SHALL TERMINATE 1 1/2" CLEAR OF CONCRETE SURFACES UNLESS OTHERWISE SHOWN. 7. FLOOR OF MANHOLE SHALL BE STEEL TROWELED TO SPRING LINE. 8. BODY OF MANHOLE SHALL BE POURED IN ONE CONTINUOUS OPERATION EXCEPT THAT A CONSTRUCTION JOINT WITH A LONGITUDINAL KEYWAY MAY BE PLACED AT SPRING LINE. 9. THICKNESS OF THE DECK SHALL VARY WHEN NECESSARY TO PROVIDE A LEVEL SEAT BUT SHALL NOT BE LESS THAN 8" 10. STEPS SHALL CONFORM TO STANDARD PLAN 635 OR 636. UNLESS OTHERWISE SHOWN. STEPS SHALL BE UNIFORMLY SPACED 14" TO 15" OC. THE LOWEST STEP SHALL NOT BE MORE THAN 24" ABOVE THE LEDGE AT THE SIDE OF THE MANHOLE. NOTES I. WHEN DEPTH M FROM STREET GRADE TO THE TOP OF THE BOX IS LESS THAN 2'-10 1/2' FOR PAVED STREETS OR 3'-6* FOR UNPAVED STREETS, CONSTRUCT MONOLITHIC SHAFT PER SECTION C -C AND DETAIL 'N'. SHAFT FOR ANY DEPTH OF MANHOLE MAY BE CONSTRUCTED PER SECTION C -C. WHEN DIAMETER DI IS 48' OR LESS. CENTER OF SHAFT MAY BE LOCATED PER NOTE 2. 2. CENTER OF MANHOLE SHAFT SHALL BE LOCATED OVER CENTER LINE OF STORM DRAIN WHEN DIAMETER DI IS 48' OR LESS, IN WHICH CASE PLACE E BARS SYMMETRICALLY AROUND SHAFT AT 450 WITH CENTER LINE AND OMIT J BARS. 3. L AND P SHALL HAVE THE FOLLOWING VALUES UNLESS OTHERWISE SHOWN ON THE PROJECT DRAWINGS: A. D2=96* OR LESS, L=5'-6*, P=5* B. D2 OVER 96'. L=6' -O', P=80 L MAY BE INCREASED OR LOCATION OF MANHOLE SHIFTED TO MEET PIPE ENDS. WHEN L GREATER THAN THAT SHOWN ABOVE IS SPECIFIED. D BARS SHALL BE CONTINUED 6'OC. 4. STATIONS OF MANHOLES SHOWN ON PROJECT DRAWINGS APPLY AT CENTER LINE OF SHAFT. ELEVATIONS ARE SHOWN AT CENTER LINE OF SHAFT AND REFER TO THE PROLONGED INVERT GRADE LINES. 5. REINFORCEMENT SHALL CONFORM TO ASTM A 615, GRADE 40, AND SHALL TERMINATE 1 1/2' CLEAR OF CONCRETE SURFACES UNLESS OTHERWISE SHOWN. 6. FLOOR OF MANHOLE SHALL BE STEEL TROWELED TO SPRING LINE. 7. BODY OF MANHOLE SHALL BE :ROURED IN ONE CONTINUOUS OPERATION EXCEPT THAT A CONSTRUCTION JOINT WITH A LONGITUDINAL KEYWAY MAY BE PLACED AT SPRING LINE. 8. THICKNESS OF THE DECK SHALL VARY WHEN NECESSARY TO PROVIDE A LEVEL SEAT BUT SHALL NOT BE LESS THAN THE TABULAR VALUES FOR F SHOWN ON TABLE SH. I. 9. D BARS SHALL BE #4 FOR D2=39* OR LESS, #5 FOR D2=42' TO 84' INCLUSIVE AND •6 FOR D2=90' OR OVER. 10. CENTER LINE OF INLET PIPE SHALL INTERSECT INSIDE FACE OF CONE AT SPRING LINE UNLESS OTHERWISE SHOWN. 11. STEPS SHALL CONFORM TO STANDARD PLAN 635 OR 636 UNLESS OTHERWISE SHOWN, STEPS SHALL BE UNIFORMLY SPACED 14' TO 15" OC. THE LOWEST STEP SHALL NOT BE MORE THAN 24' ABOVE THE INVERT. 12. THE FOLLOWING CRITERIA SHALL BE USED FOR THIS MANHOLE: A. MAIN LINE = 36' INSIDE DIAMETER OR LARGER. EXCEPT IF MAIN LINE RCP DOWNSTREAM OR MANHOLE IS 36' TO 42' INSIDE DIAMETER AND MAIN LINE RCP UPSTREAM IS 33' OR LESS STANDARD PLAN 321 SHALL BE USED. II. THE FOLLOWING CRITERIA SHALL BE USED FOR THIS MANHOLE: A. MAIN LINE = 33" INSIDE DIAMETER OR LESS. (EXCEPTION - IF THE MAIN LINE RCP DOWNSTREAM OF THE MANHOLE IS 36" TO 42" INSIDE DIAMETER AND THE MAIN LINE RCP UPSTREAM IS 33" OR LESS.) STANDARD PLAN 320 OR STANDARD PLAN 322 IS NOT APPLICABLE WH; RE THE MAIN LINE CONDJI T IS LESS THAN 36" IN DIAMETER. B. SEE SECTION A - A. THE MAXIMUM SIZE LATERAL THAT MAY BE CONNECTED TO THIS MANHOLE IS SUCH THAT THE DISTANCE FROM THE OUTSIDE (TOP) OF THE LATERAL TO THE BOTTOM OF THE 8" THICK TOP OF THE MANHOLE CHAMBER, MEASURED VERTICALLY FROM THE END OF THE RCP, SHALL BEE A MINMUM OF 60 . C. IF THE SIZE OF THE LATERAL IS SUCH THAT THE ABOVE-SPECIFIED MINIMUM DISTANCES CANNOT BE MAINTAINED, THEIN ONE OF THE FOLLOWING ALTERNATE SOLUTIONS MUST BE USED. I. PROVIDE A SPECIAL STRUCTURE. 2. PROVIDE TWO STANDARD STRUCTURES, CONSISTING OF THIS MANHOLE PLACED UPSTREAM OR DOWNSTREAM FROM THE APPLICABLE JUNCTION STRUCTURE OR TRANSITION STRUCTURE. 12. MANHOLE FRAME AND COVER SHALL CONFORM TO STANDARD PLAN 630 UNLESS OTHERWISE SHOWN. 13. MANHOLE SHAFT SHALL CONFORM TO STANDARD PLAN 324 UNLESS OTHERWISE SHOWN. 14. WHERE A MANHOLE SHAFT - 36 -INCH WITHOUT REDUCER IS SPECIFIED REFER TO STANDARD PLAN 336. 15. WHERE A PRESSURE MANHOLE SHAFT - WITH ECCENTRIC REDUCER Is SPECIFIED REFER TO STANDARD PLAN 328. 16. WHERE A PRESSURE MANHOLE SHAFT - 36 -INCH WITHOUT REDUCER IS SPECIFIED REFER TO STANDARD PLAN 329. THE FOLLOWING STANDARD PLANS ARE INCORPORATED HEREIN: 324 MANHOLE SHAFT - WITH ECCENTRIC REDUCER 326 MANHOLE SHAFT - 36 -INCH WITHOUT REDUCER 328 PRESSURE MANHOLE SHAFT - WITH ECCENTRIC 329 PRESSURE MANHOLE SHAFT - 36 -INCH WITHOUT REDUCER 630 24 -INCH MANHOLE FRAME AND COVER 633 36 -INCH MANHOLE FRAME AND COVER 635 STEEL STEP 636 POLYPROPYLENE PLASTIC STEP B. THE OUTSIDE DIAMETER OF THE LATERAL MUST BE LESS THAN OR EQUAL TO 1/2 THE INSIDE DIAMETER OF THE MAIN LINE. IF THE UPSTREAM AND DOWNSTREAM DIAMETERS OF THE MANHOLE ARE NOT THE SAME, THE GOVERNING INSIDE DIAMETER OF THE MAIN LINE SHALL BE CONSIDERED TO BE THAT WHERE THE EXTENDED CENTER LINE OF THE LATERAL ENTERS THE MANHOLE. C. IN NO INSTANCE SHALL THE INSIDE DIAMETER OF THE LATERAL TO THE MANHOLE BE GREATER THAN 30'. 13. MANHOLE FRAME AND COVER SHALL CONFORM TO STANDARD PLAN 6.30 - UNLESS OTHERWISE SHOWN. 14. MANHOLE SHAFT SHALL CONFORM TO STANDARD PLAN 324 UNLESS OTHERWISE SHOWN. 15. WHERE A MANHOLE SHAFT - 36 -INCH WITHOUT REDUCER IS SPECIFIED REFER TO STANDARD PLAN 326. 16. WHERE A PRESSURE MANHOLE SHAFT - WITH ECCENTRIC REDUCER IS SPECIFIED REFER TO STANDARD PLAN 328. 17. WHERE A PRESSURE MANHOLE SHAFT - 36 -INCH WITHOUT REDUCER IS SPECIFIED REFER TO STANDARD PLAN 329. THE FOLLOWING STANDARD PLANS ARE INCORPORATED HEREIN: 324 MANHOLE SHAFT - WITH ECCENTRIC REDUCER 326 MANHOLE SHAFT - 36 -INCH WITHOUT REDUCER 328 PRESSURE MANHOLE SHAFT - WITH ECCENTRIC 329 PRESSURE MANHOLE SHAFT 36 -INCH WITHOUT REDUCER 630 24 -INCH MANHOLE FRAME AND COVER 633 36 -INCH MANHOLE FRAME AND COVER . 635 STEEL STEP 636 POLYPROPYLENE PLASTIC STEP _1 S; `r•"()raj r�l�� 11 ff 1 Pee0ltO 01ZAW T N G 1 J PAL FA. wi ommsrow, sFL. B 9 v I IT .- B PLAJ (SHAFT NOT SHOWN) --EDGES TO BE ROUNDED T TO 3' R r r' t A r' r �R = I D OF SPUR . z ALL STEEL •4 0 4' OC +C DETAIL "N" PLAN (RINGS AND COVER NOT SHOWN) STREET GRADE- MANHOLE FRAME AND COVER PER CONCRETE RINGS STD. PLAN 630 PER STD. PLAN 324 wa 24' OMIT THIS STEP m cz IN PAVED STREETS - < fa MANHOLE _ w SHAFT 16' FOR PAVED r-1 PERSTD.S3D4 STREETS. 2'-2' co L N 2 FOR UNPAVEp M 3'-O' STREETS - T 5'x2' PIPE SEAT 3-6' ROUND EDGES OF INLETS ROUND EDGES l; SEE NOTE I STREET GRADE 5'x1' RING SEAT w NMI, SECTION ■ UNPAVED STREET MAX. MIN. MAX. MIN, _ A -_A_ C -C 1 2' -_ 10 1/2' 3' -6' 11= 8 1/2' 16' 1 15' (b) WHERE COVER IS 10'-0' OR LESS. W MEASURED AT THE TOP OF THE RCP MAY BE ANY DIMENSION GREATER THAN THE ABOVE SPECIFIED MINIMUM. UNLESS OTHERWISE SPECIFIED ON THE PROJECT DRAWINGS. (c) WHERE COVER IS GREATER THAN 10'-0'. W MEASURED AT TOP OF PIPE SHALL NOT BE GREATER THAN 10' FOR RCP 1080 IN DIAMETER OR LESS. OR 12' FOR RCP OVER 108' IN DIAMETER UNLESS THE CONTRACTOR AT HIS OWN I /2' INLET ELEVATION APPLIES AT THIS SECTION C -C POINT SECTION A -A STATION LINE STEPS '4' 1 L+ T-8* 4' A �o OPTIONAL BOTTOMA GRADE POINTS. SEE NOTE 5 SECTION B -B wJ wm rNC 16- VT w w J I- mo <z x w aw � N TABLE OF VALUES FOR M (SEE NOTE I) SECTION PAVED STREET UNPAVED STREET MAX. MIN. MAX. MIN, _ A -_A_ C -C 1 2' -_ 10 1/2' 3' -6' 11= 8 1/2' 16' 1 15' AMERICAN PUBLIC WORKS ASSOCIATION - SOUTHERN CALIFORNIA CHAPTER PROMULGATED BY THE AMA -AGC JOINT COOPERATIVE COMMITTEE I992 MANHOLE PIPE TO PIPE (ONE OR BOTH MAIN LINE ID'S 33" OR SMALLER sTANDAAD PLAN 521-0 USE WITH STANDARD SPECIFlCATIONS FOR PUBM WORKS CONSTRUCTION 6' FOR RCP 60. OR LESS IN DIAMETER. 10' FOR RCP 63" TO 108" INCLUSIVE IN t TOP OF BEDDING B UNLESS BACKFILL SHALL �PURSUANT In SE,GTION 3ocv-1.3,1 DF THE SUMDARD OTHERWISE NOTED IN THE ' SPECIFICATIONS 0SPECIFICATIDN5 FOP,VOkIC WORKS CONSTRIICTION C LATEST EDIZION), SPECIFIED AS FOLLDW3: ry ry EXCAVATED BANK OR SHEETING BEDDING B REDOING A a. ROCKS GREATEIk�TNAN (n" IN ANY o' o DIMENSWN WILL MOT BE P'ERMITTO BEDDING MATERIAL BELOW BOTTOM OF / �_ Z IN t�ACKF llt PLACED REI W EEN 1 RCP SHALL BE 1/12D' FOR PIPES 39' IN AND LARGER IN DIAMETER. AND 4' FOR ABOVE THE `TDP DF ANY PIPE OR gOiC ..• RCP LESS THAN 39' IN DIAMETER. AMID I' f3E LDW PAVEMENT SURGRADE, IN NO CASE SHALL IT BE LESS THAN EXCAVATION TO THIS to V BELOW ANY BELL OR COLLAR 4• MIN. LINE PERMITTED b. ROCKS GREAlER IRAN 2(. IN AN`f DIMENSIDN WILLL, NOT BE PERMITTED CASE 3 IN BACKVILL PLACED 117WIM '1' OV REINFORCED CONCRETE PIPE PAVEMEMT SUBGRADE., NOTES: CASE 3 BEDDING & BACKFILL AROUND RCP (LOAD FACTOR 1.8) (a) W AT SPRING LINE SHALL NOT BE LESS THAN THE FOLLOWING: 6' FOR RCP 60. OR LESS IN DIAMETER. 10' FOR RCP 63" TO 108" INCLUSIVE IN DIAMETER. AND 12' FOR PIPE LARGER THAN 108' IN DIAMETER. THESE DIMENSIONS MAY INCLUDE THE THICKNESS OF ANY SHEETING. (b) WHERE COVER IS 10'-0' OR LESS. W MEASURED AT THE TOP OF THE RCP MAY BE ANY DIMENSION GREATER THAN THE ABOVE SPECIFIED MINIMUM. UNLESS OTHERWISE SPECIFIED ON THE PROJECT DRAWINGS. (c) WHERE COVER IS GREATER THAN 10'-0'. W MEASURED AT TOP OF PIPE SHALL NOT BE GREATER THAN 10' FOR RCP 1080 IN DIAMETER OR LESS. OR 12' FOR RCP OVER 108' IN DIAMETER UNLESS THE CONTRACTOR AT HIS OWN EXPENSE PROVIDES CASE I BEDOING OR STRONGER RCP, THESE DIMENSIONS INCLUDE THE THICKNESS OF ANY SHEETING. (d) SCREED BEDDING A TO FIT CURVATURE AND GRADE OF RCP. TYPE OF SCREED AND THE METHOD OF USE TO BE APPROVED BY THE ENGINEER. NO TES I. USE CASE 3 FOR RCP. CASE 2 FOR VITRIFIED CLAY. PLASTIC AND PLAIN CONCRETE PIPE UNLESS OTHERWISE SPECIFIED OR SHOWN ON 5• WHERE CALLED FOR BY THE OEPARTMENT'S STRUCTURAL DESIGN MANUAL. OR THE PROJECT DRAWINGS. WHERE SPECIFIED ON THE PROJECT DRAWINGS. CONCRETE SHALL BE 420-C-2000. 2. FOR RCP 27' IN DIAMETER AND LARGER, BEDDING A SHALL BE COM- 6. CONCRETE BACKFILL SHALL BE POURED FROM POSED OF SAND, 3/4' OR 1/2' CRUSHED ROCK, NO. 3 OR 4 CONCRETE WALL TO WALL OF THE TRENCH AND FROM THE BOTTOM OF THE 'TRENCH AGGREGATE OR GRAVEL OR OTHER GRANULAR MATERIAL AS SPECIFIED TO A MINIMUM DEPTH OF 4' OVER THE TOP OF THE PIPE. AND SHALL HAVE A SAND EOUIVALENT VALUE OF NOT LESS THAN 20 UNLESS OTHERWISE APPROVED BY THE ENGINEER. 7. CONCRETE BACKFILL SHALL BE PROVIDED FOR 3. WHERE RCP SMALLER THAN 27' IN DIAMETER IS USED, THE REQUIRE- MENTS IN NOTE 2 RCP 18' IN DIAMETER OR LESS WHERE THE COVER IS EQUAL TO OR LESS THAN 24'• FOR RCP GREATER THAN 21- IN DIAMETER BUT LESS THAN 39' WHERE SHALL BE MET EXCEPT THAT A GRADATION NO COARSER THAN NO. 4 CONCRETE AGGREGATE OR NO COARSER THAN THE COVER IS LESS THAN 15' AND FOR RCP 39' OR GREATER WHERE THE COVER IS LESS 1/2' CRUSHED ROCK SHALL BE USED. THAN 12'. CONCRETE BACKFILL SHALL BE IN ACCORDANCE WITH NOTES 5 AND 6. 4. BEDDING B SHALL BE COMPOSED OF SAND OR OTHER GRANULAR 8. 3 -EDGE BEARING TEST LOAD FACTOR MATERIAL AND SHALL HAVE A SAND EQUIVALENT VALUE NOT LESS = I.O. THAN 20 AS SPECIFIED IN SUBSECTION 306-1.2.1 AS AMENDED UN- LESS OTHERWISE APPROVED BY THE ENGINEER AND SHALL BE COM- PLETED PRIOR TO PLACING THE BALANCE OF THE BACKFILL. THE MAXIMUM ROCK SIZE FOR BEDDING B SHALL BE 4' IN THE GREATEST DIMENSION. NESTING OF ROCKS WILL NOT BE PERMITTED. FES The _ ConsulUng Group, ,`�� A• 6 Morgan, wife 100 No.33273 Irvine, California 92718 � * Exp.9/30/99 * (714)587-3012 FAX (714)472-3176 `P��, CIA PREPARED UNDER THE SUPERVISION OF: OF CA1.�� REVISIONS,� QATEAPAIyAl DATE , LOS ANGELES COUNTY DEPARTMENT OF PUBLIC WORKS STANDARD PLAN PIPE BEDDING IN TRENCHES 3080-0 CITY OF FONTANA, CALIFORNIA DRAM � STORM DR/UN IMPROVEMENT PLANS SCALE: n DESIGNED � DETAIL SHEET 'NONE CHECi,ED BY DATE: � T,�p TRACT N0. 14570 do 14570-1 I/3o/97 rn, J08 N0. �9C��i-� DR. N0. SFfT. N0. �o 1-23-9` �%e.Ac2Q 7.3�•4� ''�� DA P� (� CITY INEER R.C.E.Zs.-� 24 9 3 % OF % ��