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GENERAL PROVISIONS
<br />GOVERNING INSTALLATION OF SUBSURFACE STRUCTURES AND PIPELINES WITHIN COUNTY RO_#.D-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 ofxime,the Permittee-shall notify the known users ofthe respective thoroughfares)involved,andshaiiprovide access for vehicular andpedestriantraffictoandfromtheroad
<br />1. Unless otherwise permitted,all work shall be conducted in such a manner that no less than one lane ofthe existing County road traveled way willbemaintainedopentopublictrafficduringworkinghoursinasmooth.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 the Permittee notifythefollowingpersonsand/or agencies ofthe time,the period of closure,and-the detour mute at leasttwenty-four(24)hours prior to said road closure.a. The County ofSan Joaquin Public Works Department d The local fire district
<br />b. The County ofSan Joaquin Sheriff's Office e. The local school district
<br />C. The local postal service The local residents involvedB. Should hazardous conditions relative to the installation-operationswarrant flagmen,as many capable uagmen as may be necessary shall be provided-by thePermitteeandstationedinadvanceofworktowarnanddirecttraffic.
<br />C. Lights,signs and barricades shall be furnished,erected and maintained by the Permittee for the adequate warning and convenience ofthe public,withparticularattentiontobetakeninthisregardafterdark
<br />D. Any excess dirt and/or debris which might be ahazard to either automobile of pedestrian traffic,uncontrollable by Iights,signs and barricades,shall beremovedfromthejobsitedaily.
<br />STRUCTURES:.
<br />A. Walls ofstructures shall be such quality and strengththat theywill resist all pressures and will not crack or be deformed in such away as to create a hazardormaintenanceproblematanytime. Therefore,the minimum structural requirements for concrete pipe placed under county road rights-of-way shallconformtothefollowingAmericanAssociationofStateHighwayandtransportationOfficials(AASHTO)designations.1. For concrete pipe up to and including thirty-three inches(33")insidediameter,extrastrength 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 ClassIII.
<br />3. Plastic.pipe conforming to AASHTO Designation M294.
<br />B. All concrete pipe joints 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-wayunless specifically so stated in the Special Provisions,and only under the conditions as providedD: All structures to be buried within the County rights-of-way shall be set at such elevations as to allow minimum coverage ofthirty inches(3011)to thecenterlineoftheroadwaysandtwelveinches(ITatthe bottoms ofborrow ditches each side ofthe roadways. The depths ofstructures shall be establishedbelowaflatplaneextendingacrosstherights-of-way,no part of which shall extend above the elevations stated above;manhoies,lampholes,valves,etc,notincludedFuturesurfaceelevationsshallbeanticipatedasnearlyaspossibleandstructureelevationsshallbeestablishedforfutureadjustmentsaccordingly.E. The County hereby reserves the right to specify in the Special Provisions the gage and surface treatment ofany galvanized corrugated metal pipe thatis to beinstalled-
<br />F.nstalledF. 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 completed-B. Trenched shall not be left open farther than 300 feet in advance ofpipe laying operations,or 200 feet to the rear thereof,unless otherwise permitted by theEngineer.
<br />C. Unless otherwise permitted underthe Special Provisions,backfill shall be placed and mechanically compacted in-such a manner that the relative compactionthroughouttheentirefillwithintheCountyroadright-0f--way shall conform to the percentages of compaction as shown on the Trench detailD. Backfill material shall be placed in horizontal uniform layers notto exceed in thickness,before compaction,0.67 foot in the bedding region,one—foot where90%compaction is required,and two-feet where 80%compaction is required
<br />E. No portion ofthe excavation(s)shall-be compacted by ponding orjetting unless a maintenance bond is providedF. Gravel backfill material shall be utilized only where specifically so stated on the face ofthe permit It shall be compacted by means of ahigh-frequencyinternalvibrator,the compactor to be a size and type approved by the Engineer. Points of compaction shall not be greater than 18"centers and to the fulldepthofthelift
<br />G. All pavements,curbs,gutters,sidewalks,borrow ditches,pipes,head wails,mad signs,trees,shrubbery,and/or other permanent road facilities impaired byorasaresultofconstructionoperationsattheconstructionsite(s)occupied bymaterials and/or equipment,shall be restored immediately upon backfilling oftheexcavationtotheoriginalgradesandcrosssections,and to a condition as good as,or better than existing prior to construction.H All surfacing materials ofroadways and driveway approaches cut or damaged by or as a result ofconstruction.operations,shall be replaced within'ONEWEEKfollowingthebackfillingofexcavation,weather permitting with compacted layers ofsurfacing materials at least as thick as the existing,and no lessthantwoinches(2")ofasphalt concrete over six inches(6")ofaggregate base,both as specified below.I.- Asphalt Concrete:Combined mineral aggregate shall conform to the quality and gradation requirements for Type"B"one-half inch(1/2)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. Placement ofasphaltconcretesurfacingshallconformtotheapplicableprovisionsofSection39oftheCaliforniaStandardSpecifications,2. Aggregate Base: Combined mineral aggregates shall conform to the quality and the grading forthree-quarter inch(3/4")maximum sizeaggregateClass2AggregateBasespecifiedinSection26oftheCaliforniaStandardSpecifications.L Before acceptance ofrepairs to the County road rights-of-way,all unsightly and detrimental dirk 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 or spoil banks shall be repaired as directed by the Engineer.J. Upon request by the County,any settlement,sagging ofsurface,or cracking ofpavement shall be repaired immediately by and at the sole expense of thePermitteeforaperiodofoneyearfollowingacceptanceofthework
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