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Initial Cut <br />Final Saw Cut (Typ.)-, <br />11/3 x Exist A. C, <br />Bedding B <br />Bedding A - <br />1/2 OD <br />( 6 Min. ) <br />Backfill with materials equal to or <br />better than the existing pavement <br />and boss in quality. New Pavement <br />shall be 1" thicker than existing <br />pavement, minimum of 0.25 feet, - <br />New base shall be 1 thickir than <br />existing base, minimum of 0.5 feet. <br />-Asphalt Concrete/Concrete <br />Existing Thickness Of <br />Pavement (Typ ) <br />SEE SHEET 12 FOR "W <br />Min Aggregate Base 95 <br />Relative Compaction Or Use <br />One (I) Sack Slurry Mix <br />- under pavement and <br />shoulders. <br />Aggregate Bose 90% <br />Relative Compaction Or Use <br />One Sock Slurry Mix (One <br />Sack Of Cement To One <br />Cubic Yard Of Sand ) <br />Pipe Bedding Zone <br />90° Relative Compaction <br />"W" to be determined from trench detals f PRIM_ GOAT SHALL BE REOuyR�,7 ASOvc <br />on sheet 12. Minimum valve for W is 12". AGGREGATE SASE OR Si URPr /✓;X" FOR <br />45PHALT CONCRE,'� <br />TYPE I <br />STREETS - TRENCH BACKFILL AND <br />RESURFACING DETAIL <br />CITY OF TRACY <br />W D Y� STANDARD <br />PLAN 501 SHEET 1 OF 4 <br />_ I ER CE 2 No. <br />if Res No: 89-295 DATE: July 18, 1989 TRENCHING & <br />Rev.: Rev: RESURFACING <br />Rev: Rev: <br />Driveway /Sidewalk <br />Construction <br />Aggregate Base On Areas <br />With Sidewalk/Driveway <br />90 % Relative <br />Compaction <br />Pipe <br />Bedding <br />Zone <br />1/2 OD <br />( 6" Min) <br />Top Of Grace Or Sidewaix <br />I <br />6. <br />X_ �I W <br />I <br />"W" to be determined from trench details <br />on sheet 12. Minimum valve for W is 12". <br />6 Native <br />Aggregate Base On Areas <br />I <br />Min. Without Sidewalk And <br />Driveways <br />Select Native Backfill Or <br />Approved Aggregate Base <br />Bedding <br />doing ''A " <br />TYPE 2 <br />PUBLIC RIGHT OF WAY <br />TRENCH BACKFILL DETAIL <br />CITY OF TRACY <br />R VI W D Y�DARD AN 501 <br />ER E 2260T- No. SHEET 2 OF 4 <br />Res No: 89 -295 TE: July 18, 1989 TRENCHING & <br />Rev: Rev: RESURFACING <br />Rev: Rev: <br />s <br />11 <br />NOTES: <br />1. Bedding "A" shall be composed of sand (Band equivalent riot 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 less than 30). <br />3. Unstable subgrade material shall be excavated and stabilized with M3 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 />5. 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 Bhall 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 />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 controls 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 />RE 1XIEP BY STANDARD <br />MAN CITY R 2 601 No. 501 SHEET 4 OF 4 <br />Res No: 89-295 DATE:July 18,1989 TRENCHING & <br />Rev: Rev: RESURFACING <br />Rev: Rev: <br />y <br />r <br />"W" to be determined from trench details <br />on sheet 12. Mnimum valve for W is 12". <br />BEDDING "A" <br />CRUSHED ROCK GRADATION <br />Sieve Size <br />% Passing <br />Sieves <br />b <br />� <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 />ASTM (C131 Test Groding-B) <br />/Backfill As Per Std. Plan <br />Q <br />Li--- Top Of <br />Bedding "B" <br />N � <br />W -W <br />Springline <br />1. . <br />Special Efforts Shall Be Made To <br />Ensure That Material Is Installed <br />Properly In This Area. <br />Bedding "B" <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 „B„ 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 %. <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 />REVIEW D <br />STANDARD <br />502 <br />R 6 0 1 No. <br />Res No: 87- 36 4 DATE:Dec.22,1987 PIPE ZONE <br />Rev: Rev: & BEDDING <br />Rev: Rev: <br />SEE SHEET 12 FOR SPECIFIC PIPE BEDDING <br />DETAILS FOR PIPE ALTERNATES <br />> <br />Z <br />H <br />b <br />� <br />Qa <br />U <br />W <br />t <br />o <br />r0 <br />U <br />U <br />a <br />1n <br />�i/ <br />Q <br />T <br />Z <br />FC <br />W <br />11 <br />Q <br />Np <br />n <br />N <br />W <br />W <br />Z <br />U <br />N <br />ab <br />00 <br />Z <br />in <br />Z <br />W <br />J <br />LUR <br />Z <br />W <br />0 <br />L7 <br />W <br />Z <br />Q <br />Z <br />rA <br />N <br />• <br />W <br />a <br />M <br />W <br />0 <br />a <br />Z <br />Q Q <br />W <br />0. W <br />0 <br />a <br />A� <br />N W <br />�i/ <br />IX Z <br />w <br />Q <br />d <br />CC I <br />LLJH <br />Z� <br />LCIO) <br />KW H <br />W <br />� Q <br />m3 <br />win Z <br />aQ V <br />Zw W <br />N3 CC <br />LLJ less, <br />cc W( <br />F_ cc <br />a� <br />Z <br />a <br />ll. <br />J <br />U <br />Z <br />0 <br />0 <br />U <br />Z <br />0 <br />} <br />U <br />Q <br />ILL <br />0 <br />} <br />U <br />CE <br />0 <br />ILL <br />SHEET NO <br />11 <br />OF 13 SHEETS <br />Jw NO. NO792.V <br />FILE N0. <br />LU <br />0 <br />Z <br />!% <br />O <br />Z <br />Z <br />op <br />W <br />N <br />w <br />Q <br />d <br />CC I <br />LLJH <br />Z� <br />LCIO) <br />KW H <br />W <br />� Q <br />m3 <br />win Z <br />aQ V <br />Zw W <br />N3 CC <br />LLJ less, <br />cc W( <br />F_ cc <br />a� <br />Z <br />a <br />ll. <br />J <br />U <br />Z <br />0 <br />0 <br />U <br />Z <br />0 <br />} <br />U <br />Q <br />ILL <br />0 <br />} <br />U <br />CE <br />0 <br />ILL <br />SHEET NO <br />11 <br />OF 13 SHEETS <br />Jw NO. NO792.V <br />FILE N0. <br />