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0 <br />r <br />Initial Cut <br />Final Saw Cut (Typ.)-- <br />III/3 x Exist A.C, <br />Bedding'. B" <br />Bedding "A"- <br />1/2 OD <br />( 6" Min.) <br />Mi <br />(Ty <br />80clifill with materials equal to or <br />better than the existing pavement <br />and base in quality. New povement <br />shall be 1" thicker than existing <br />pavement, minimum of 0.25 feet, -_ <br />New base shall be 1" thicker than <br />existing base, minimum of 0.5 feet. <br />t <br />-Asphalt Concrete/Concrete <br />Existing Thickness Of <br />Pavement (Typ.) <br />SEE SHEET 12 FOR "W" <br />Aggregate Base 95 % <br />Relative Compaction Or Use <br />One (1) Sock Slurry Mix <br />under pavement and <br />shoulders. <br />Aggregate Bose 90% <br />Relative Compaction Or Use <br />-One Sack Slurry Mix (One <br />Sack Of Cement To One <br />Cubic Yard Of Sand ) <br />Pipe Bedding Zone <br />90" Relative Compaction <br />t <br />W •to be determined from trench details PRyM£ COAT SHALL BE R£OU/R£O ABOVE <br />on sheet 12. Mk irnum valve for W is 12". AGGREGATE BASE OR SL URRY MIX FOR <br />ASPHALT CONCRETE <br />TYPE I <br />STREETS - TRENCH BACKFILL AND <br />RESURFACING DETAIL <br />CITY OF TRACY <br />•11Res <br />% Passing <br />Sieves <br />STAANNDARD C <br />No. 501 SHEET 1 OF 4 <br />100 <br />• <br />No: 89-295 <br />DATE: July 18, 1989 <br />TRENCHING & <br />RESURFACING <br />Rev: <br />Rev: <br />Rev: <br />Rev: <br />Top Of Grade Or Sidewalk <br />Driveway/Sidewalk IN <br />6" Native <br />Construction IAggregate Base On Areas <br />Aggregate Base On Areas Min. WithoutSidewalk And <br />With Sidewalk/Driveway Driveways <br />"W to be determined from trench details <br />on sheet 12. Mini n urn valve for W is 12". <br />Select Native Backfill Or <br />Approved Aggregate Base <br />Bedding " B <br />ding "A'. <br />TYPE 2 <br />PUBLIC RIGHT OF WAY <br />TRENCH BACKFILL DETAIL <br />CITY OF TRACY <br />D PLAN 501 <br />No. SHEET 2 OF 4 y' <br />Ree No: 89 -295 IIATIE. July 18, 1989 TRENCHING & <br />Rev. Rev: RESURFACING <br />Rev: Rev: , <br />NOTES: <br />1. Bedding "A" shall be composed of sand (sand equivalent not less than 30). <br />For clay and concrete pipe, aggregate base per City Standard Specification <br />may be used. <br />2. Bedding "B" shall be composed of sand (sand equivalent not lees than 30). <br />3. Unstable subgrade material shall be excavated and stabilized with t3 rock <br />(per ASTM C-33 or approved equal) or with cement slurry/concrete as <br />approved by the Deputy Director of Public Works/Construction. <br />4. All trenches shall be shored or protected in accordance with OSHA and other <br />State and Federal safety codes, regulations and ordinances. <br />S. Backfill material shall be either aggregate base (95% relative compaction <br />3'-0" below asphalt concrete and 90% relative compaction for remaining <br />depth) or one (1) sack slurry mix. <br />6. Placement of aggregate base shall be in 12" lifts evenly placed and <br />mechanically compacted to relative density as specified. Compaction tests <br />shall be required at discretion of Deputy Director of Public <br />Works/Construction. All costs related to these tests shall be born by <br />owner/contractor/utility company when such tests are required. If results <br />of these tests does not meet specified requirements, backfill shall be <br />excavated, replaced, compacted and retested. In case of one sack slurry <br />mix, no compaction test will be required. Compaction by jetting may be <br />allowed by special permission of the Deputy Director of Public <br />Works/Construction in pipe bedding zone. <br />7. Drop hammer shall not be used to cut pavement. <br />8. All trenches shall be backfilled and temporarily paved or steel plated at <br />the end of each working day. <br />9. Minimum 24 hour notice shall be required for all City inspections. Call <br />City of Tracy Construction Management 836-9193. <br />10. Initial cut in street pavement shall be equal to width of trench with <br />option of being jack hammered or saw cut. <br />11. Final cut in street pavement shall be 18" wider than trench width as shown <br />in detail and shall be made by saw cutting only. <br />12. Temporary bituminous surfacing (cut back) shall be placed and compacted <br />immediately above the trench following compaction and approval of Deputy <br />Director of Public Works/Construction. Minimum depth of cut back shall be <br />2" or as specified by Deputy Director of Public Works/Construction. Cut <br />backs shall be maintained in a condition satisfactory to Deputy Director of <br />CITY OF TRACY <br />STANDARD <br />rNoAN 501 SHEET 3 OF 4 <br />CITY ENGINEER /RCE 226UT-- Res No: 89-295 DATE: July 18,1989 TRENCHING & <br />Rev: Rev: RESURFACING <br />Rev: Rev: <br />NOTES: cont. <br />Public Works/Construction up to time the final paving is placed on trench <br />in accordance with Note 13. <br />13. Final paving above trench section shall be placed within 14 days of its <br />backfill and compaction. Extension may be granted by Public Works Deputy <br />Director/Construction due to weather conditions. Depth of final paving <br />shall be 1 1/3 times existing pavement. In the event permanent paving is <br />not done within 14 days, the City will consider this as incomplete work and <br />will take necessary action in accordance with prevailing City ordinances <br />and policies. <br />14. Temporary cut back shall be removed before placement of final paving. <br />Final paving shall be placed on undisturbed previously inspected and <br />compacted aggregate base or one sack slurry mix. Recompaction shall be <br />required for any disturbed base or surface. <br />15. For a parallel trench longer than one half length of the block, a slurry <br />seal shall be required on entire half width of street on trench side as <br />directed by Deputy Director of Public Works/Construction. <br />16. Proper traffic control■ and covering of trenches shall be maintained in <br />accordance with City of Tracy safety and traffic control manual in <br />construction areas. <br />17. No trench shall be opened in any street for purpose of laying pipes or <br />conduits more than six hundred (600) feet at a time. <br />18. Asphalt concrete shall be in accordance with City of Tracy Standard <br />Specifications. <br />19. Trenching shall not be allowed on any street which has been reconstructed <br />or repaved within past 3 years nor on slurry sealed streets for a period of <br />eighteen (18) months. <br />CITY OF TRACY <br />Res No: 89-295 DATE. -July 18,1989 <br />Rev. Rev: <br />Rev: Rev: <br />501 SHEET 4 OF 4 <br />TRENCHING & <br />RESURFACING <br />Backfill As Per Std. Plan <br />" 1* Top Of <br />BEDDING "A" Bedding "B" <br />CRUSHED ROCK GRADATION <br />Sieve Size <br />% Passing <br />Sieves <br />1 ° <br />100 <br />3/4" <br />90-100 <br />1/2" <br />30-60 <br />3/8" <br />0 -20 <br />No.4 <br />0-5 <br />W. <br />Springline Bedding "B" <br />n0 <br />ASTM (C 131 Test Grading - B) <br />Special Efforts Sholl Be Mode To <br />Ensure That Material Is Installed <br />Properly In This Area. <br />0, 0., � iD 0�•.10,. e. .O C <br />• a. ,i��.. ap.c. '.a •.. . R <br />"STABLE SOIL <br />Bedding "A" <br />NOTES <br />I. Bedding "A" shall be composed of sand (Sand equivalent not less <br />than 35) or crushed rock ( See Gradation ). <br />2. Bedding "8" shall be composed of sand ( Sand equivalent not less <br />than 35) or other granular material approved by the Director of <br />Public Works and shall be compacted to a relative compaction of not <br />less than 90 "/e. <br />3. Unstable subgrade material shall be excavated and stabilized with •3 <br />rock as per the City Engineer or his authorized represenatives. <br />CITY OF TRACY <br />,�....,,,EVIEW <br />s <br />I( <br />D <br />� <br />PLAN STANDARD 502 <br />No. <br />Res No: 87-364 <br />DATE : Dec.22,1987 <br />PIPE ZONE <br />& BEDDING <br />Rev. <br />Rev: <br />_1111--: <br />Rev. <br />O <br />U <br />/NIT/AL <br />5ACKF/LL <br />(GRAVEL OR <br />CAREF(/LL Y <br />PLACED <br />5"-0"" <br />CRUSHED - ` •:''. i•: , � ..- e3,:;- . �� •d,� ��• :''1U:: o ': <br />STONE tf,.'.: -A• 'f=iz'tt:.:�::.�� <br />Iv <br />J . <br />0 <br />W=15" FOR 6" DIA. SEWER FORCE MAIN <br />W=15" FOR 20" FOR 8" DIA. PVC TRUSS PIPE <br />NOTE STABLE SOIL <br />PIPE ZONE EMBEDMENT PER CITY OF <br />TRACY STANDARD DWG. 502 <br />n <br />u <br />NOT TO SCALE <br />W <br />Q <br />LLT <br />p <br />I�Itttsotttt�a <br />> <br />Z <br />N <br />W <br />� <br />O <br />a <br />t <br />• <br />O <br />U <br />x <br />V <br />ttt <br />ON <br />¢ <br />Q <br />T <br />Z <br />oC <br />W <br />a <br />O <br />n <br />W <br />WV <br />Z_ <br />Q <br />to <br />N <br />06 <br />N <br />L7 <br />Z <br />Z <br />0) <br />W <br />J <br />O <br />c, <br />W <br />Z <br />W <br />rn <br />¢ <br />O <br />_ <br />J <br />V <br />¢ <br />>. <br />> LUO <br />Z <br />EXIST, <br />Z wUJ <br />Z <br />Q <br />H <br />N <br />• <br />Q <br />UJI <br />L <br />a <br />NOT TO SCALE <br />W <br />Q <br />LLT <br />p <br />U, <br />W <br />0. <br />Z <br />• <br />annals <br />O <br />N <br />1 <br />W <br />cu <br />¢ <br />Z <br />NOT TO SCALE <br />W <br />O <br />U, <br />W <br />I - <br />Z <br />N <br />O <br />O <br />Z <br />ago <br />' U <br />W <br />to <br />NOT TO SCALE <br />LL, <br />J <br />' U <br />W <br />fn <br />> <br />~ <br />Q <br />Z <br />a <br />O <br />c, <br />U <br />W <br />Z <br />EXIST, <br />Z wUJ <br />Q <br />U ( <br />OQ <br />6R/ND /" oilewgp <br />N> <br />n <br />Z <br />TO <br />I" <br />MATCH L&V671/V6 6R/9AF 3W N <br />EXIST E1XE of PAVEMENT ON F ON EX/sT it- , y W FU <br />mQ Q <br />? o V <br />6"AB c <br />3'AC Z:Cf)Z <br />/ A.C.OVE.PLAf� " i <br />48 Z " a Q <br />Zw W <br />.T _ O <br />Cn <br />cc ILLI <br />c EX/57//V6 1 (' Is s•� j� N ' �t �'1:.1 :. 4' . EDGE 6R/NO Ff' <br />(V ROADWAY •` • ��:�' } <br />---I 12" TRENCH/Zw cr <br />Q <br />I II- <br />WIDTH o <br />ZZ <br />96COMPACTED } <br />BACKFILL F- <br />U <br />When proposed utility line is within paved area provide 1" <br />pavement overlay from edge of pavement to centerline of street. CEO <br />Actual structural pavement section should be determined in lila W <br />field by the soils engineer based on actual subgrade resistance <br />( R ") - value tests. The traffic index for this determination F e <br />p� should be supplied by County. Additional soil samples should be ` F0 sw ua <br />retained from the pavement subgrade after underground utility <br />installation. o< et s ¢ <br />PAVEMENT REPLACEMENT SECTION 2 iI <br />NOT TO SCALE 60 Y <br />L� <br />1 <br />DO <br />Uj <br />H <br />a <br />t - <br />W <br />W <br />2 <br />M <br />M <br />\ G <br />r'-.07111 to NO <br />0SHEETS <br />W I FILE NO. <br />