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GENERAL PROVISIONS
<br />GOVERNING INSTALLATION OF SUBSURFACE STRUCTURES AND PIPL'LINES WITHIN COUNTY ROAD-RIGHTS-OF-WAY
<br />PUBLIC CONVENIENCE AND SAFETY:
<br />A Before obstructing any private driveway entrance or County road traveled way with a trench,spoil bank,equipment or other barrier permitted for anyprolonged-period oftime,the Permittee-shall notify the known users ofthe respective thoroughfare(s)involved,and shall provide access for vehicular andpedestriantraffictoandfromtheroad
<br />1. Unless otherwise permitted,all work shall be conducted in such a manner that no less than one Iane ofthe existing County road traveled way willtrafficbemaintainedopentopublicduringworkinghoursinasmooth-and safe riding condition(s). Two lanes shall be open after working hours.2. In cases where road closure is permitted,the permission to close the road will be granted under the condition that lie Permittee notify thefollowingpersonsand/or agencies ofthe time,theperiod ofclosure,and detour route at least twenty-four(24)hours priorto said road closure.a. The County ofSan Joaquin Public Works Department -d The Iocal fire districtb. The County of San Joaquin Sheriffs Office e. The local school districtC. The local postal service The Iocal residents involvedB. Should hazardous conditions relative to th-e installation-operations warrant flagmen,as manycapable flagmen as maybe necessary shall be provided-by thePermitteeandstationedinadvanceofworktowarnanddirecttraffic.
<br />C. Lights,signs and barricades shall be famished,erected and maintained bythe Permittee for the adequate warning and convenience of the public,withparticularattentiontobetakeninthisregardafterdark
<br />D.. Any excess dirt and/or debris which might be ahazard to either automobile or pedestrian traffic,uncontrollable by lights,signs and barricades,shall beremovedfromthejobsitedaily.
<br />STRUCTURES:.
<br />A Walls of structures shall be such quality and strength thatthey will resist all pressures and will not crack or be deformed in such a way as to create a hazardormaintenanceproblematanytime. Therefore,the minimumstructural requirements for concrete pipe placed under county road rights-of-way shallconformtothe`following AmericanAssociation ofState Highway and transportation Officials(AASHTO)designations.1. For concrete pipe up to and including thirty-three inches(33")inside diameter,extra strength concrete conforming to AASHTO Designation M170M
<br />2. For concrete pipe thirty-six inches(36")inside diameter and larger,reinforced concrete pipe conforming to AASHTO Designation M 170M Class1H.
<br />3. Plastic pipe conforming to AASHTO Designation 1,,294.B. All concrete pipe joins with County road rights-of-way shall be sealed against leakage and/or.infiltration with rubber gasket in conformance with Section65-1:06 ofthe California Standard Specifications,or with othermethods as may be permitted under the Special Provisions.C.Cast-in-place concrete pipe,vitrified clay pipe,spiral welded steel pipe,or corrugated aluminum alloy pipe shall not be installed within the County roadrights-of-way unless specifically so stated in the Special Provisions,and only under the conditions as provided.D: All structures to be buried within the County rights-of-way shall be set at such elevations as to allow minimum coverage ofthirty inches(30")to thecenterlineoftheroadwaysandtwelveinches(12')at the bottoms ofborrow ditches each side ofthe roadways. The depths of structures shall be establishedbelowaflatplaneextendingacrosstherights-of-way,no part ofwhich shall extend above the elevations stated above;manholes,lampholes,valves,etc.notincludedFuturesurfaceelevationsshallbeanticipatedasnearlyaspossibleandstructureelevationsshallbeestablishedforfutureadjustmentaccordingly.E. The County hereby reserves the rightto specify in the Special Provisions the gage and surface treatment ofany galvanized corrugated metal pipe thanis to beinstalled
<br />F. All longitudinal utility facilities are to be established(and dimensioned on sketches)from surveyed centerline ofroad right-of-way,not from right-of-wayborder)lines.
<br />REPAIRS OF THE COUNTY RIGHT-OF-WAY:
<br />A. All excavations shall be backfilled and compacted immediately after work therein has been completedB. Trenched shall not be left open farther than 300 feet in advance ofpipe laying operations,or 200 feet to the rear thereot unless otherwise permitted by theEngineer.
<br />C. Unless otherwise permitted under the Special Provisions,backfill shall be placed and mechanically compacted in*Such a manner that time relative compactionthroughouttheentirefillwithintheCountyroadright-of-way shall conform to the percentages of compaction as shown on the Trench detail.D. Backfill material shall be placed in horizontal uniform layers not to exceed in thickness,before compaction,0.67 foot in the bedding region,one—foot90%compaction is required,and two-feet where 80%compaction is required where
<br />E. No portion ofthe excavation(s)shall-be compacted by ponding orjetting unless a maintenance bond is provided.F. Gravel backfill material shall be utilized only where specifically so stated on the face ofthe permit It shall be compacted by means of a high-frequencyinternalvibrator,the compactor to be a size and type approved by the Engineer. Points
<br />centers and to the f
<br />ns ocompaction shall not be greater than 18" ulldepthofthelift
<br />G. All pavements,curbs,gutters,sidewalks,borrow ditches,pipes,head walls,road signs,trees,shrubbery,and/or otherpermanent road facilities impaired byorasaresultofconstructionoperationsattheconstructionsite(s)occupied by materials and/or equipment;shall be restored immediately upon backfilling oftheexcavationtotheoriginalgradesandcrosssections,and to a condition as good as,or better than existing prior to construction.R All surfacing materials ofroadways and driveway approaches cut or damaged by or as aresult of construction.operations,shall be replaced within'ONEWEEKfollowingthebackfillingofexcavation,weatherpermitting with compacted layers of surfacingmaterials at least as thick as the existing,and no lessthantwoinches(2")ofasphalt concrete over six inches(6")ofaggregate base,both as specified below.T.• Asphalt Concrete:Combined mineral aggregate shall conform to the quality and gradation requirements for Type"B"one-half inch(12)maximum aggregate,coarse or medium gradation as specified in Section 39 ofthe California Standard Specifications. The bituminous binder tobemixedwithmineralaggregateshallbepavingasphalthaving(Grade PG 64-10),unless otherwise directed by the Engineer. Placemet ofasphaltconcretesurfacingshallconformtotheapplicableprovisionsofSection39oftheCalifomiaStandardSpecifications.2. Aggregate Base: Combined mineral aggregates shall conform to the quality and the grading for three-quarter inch(3/4")maximum sizeaggregateClass2AggregateBasespecifiedinSection26oftheCaliforniaStandardSpecifications.L Before acceptance of repairs to the County road rights-of-way,all unsightly and detrimental dirt dust and/or debris shall be removed and the constructionareasleftinaneatandpresentablecondition(s).
<br />1. Ifnecessary,County road traveled way and driveway pavements shall-be washed with water to remove dirt and dust2. Driveway approaches and field entrance pavements damaged by equipment orspoil banks shall be repaired as directed by theEngineer.I Upon request by the County,any settlement,sagging of surface,or cracking of pavement shall be repaired immediatelyby and at the sole expense ofthePermitteeforaperiodofoneyearfollowingacceptanceofthework
<br />F:PERN=S COUNI'EM.-=eralPmvisionslwinterWeather Pmvisions.doo:
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