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GENERAL PROVISIONS
<br />GOVERNING INSTALLATION OF SUBSURFACE STRUCTURES AND PIP—ELMS WITHIN COUNTY ROAD-RIGHTS-OF-WAY
<br />PUBLIC CONVENIENCE AND SAFETY:
<br />A. Before obstructing anyprivate driveway entrance or County roadtraveled way with a trench,spoil bank,equipment or other barrier permitted for anyprolonged-period of time,the Permittee-shall notify the known users of the 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 waywillbemaintainedopentopublictrafficduringworkinghoursinasmoothandsaferidingcondition(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 notify thefollowingpersonsand/or agencies ofthe time,the period ofclosure,and-the detour route at least twenty-four(24)hours prior to said road closure.a The County of San Joaquin Public Works Department d. The Iocal fire districtb. The County ofSan Joaquin Sheriffs Office e. The local school district
<br />c. The local postal service f The local residents involvedB. Should hazardous conditions-relative to the installation-operations warrant flagmen,as many capable flagmen 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 or pedestrian traffic,uncontrollable by lights,signs and barricades,shall beremovedfromthejobsitedaily.
<br />STRUCTURES:.
<br />A Walls ofstructures shall be such quality and strength that they will resist all pressures and will not crack or be deformed in such a way 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,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 ClassIII.
<br />3. Plastic pipe conforming to AASHTODesignation M294.
<br />B. All concrete pipe joints with County road rights-of-way shall be sealed against Ieakege and/or.infiltration with rubber gasket in conformance with Section65-1:06 ofthe California Standard Specifications,or with other methods 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-he 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")atthe bottoms ofborrow ditches each side ofthe roadways. The depths ofstructures shall be establishedbelowaflatplaneextendingacrosstherights-of-way,no part ofwhich shall extend above the elevations stated above;manholes,lampholes,valves,etc.notincluded. Future surface elevations shall be anticipated as nearly as possible and stricture elevations shall be established for future adjustments accordingly.E. ine County hereby reserves the right to specify inthe Special Provisions the gage anl surface treatment of any galvanized corrugated metal pipe thatis 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 completed.B. Trenched shall not be left open farther than 300 feet in advance ofpipe laying operat.ons,or 200 feet to the rear thereoEngineer. f unless otherwise permitted by the
<br />C. Unless otherwise permitted under the Special Provisions,backfill shall be placed and mechanically compacted in•such a manner that the-dative compactionthroughouttheentirefillwithintheCountyroadright-of-way shall conform to the percentages of compaction as shown on the Trench detail.D. BaekfiIl material shall be placed in horizontal uniform layers not to 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.E. No portion of the excavation(s)shallbe 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 ofcompaction shall notbe greater than 18"centers and to the fulldepthofthelift
<br />G. All pavements,curbs,gutters,sidewalks,borrow ditches,pipes,head walls,road signs,trees,shrubbery,and/or other permanent road facilities impaired byorasaresultofconstructionoperationsattheconstructionsites)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 a result ofconstruction.operations,shall be replaced within ONEWEEKfollowingthebackfillingofexcavation,weather permitting,with compacted layers ofsurfacingmaterials at least as thick as the existing,and no lessthantwoinches(2")of asphalt concrete over six inches(6")of aggregate base,both as specified below.
<br />r.- Asphalt Concrete:Combined mineral aggregate shall conform to the quality and gradation requirements for Type`B"-one-half iach(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 for three-quarter inch(3/4")maximum sizeaggregateClass2AggregateBasespecifiedinSection26oftheCaliforniaStandardSpecifications.L Before acceptance ofrepairs 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 shallbe washed with waterto remove dirt and dust2. Driveway approaches and field entrance pavements damaged by equipmen"or spoil banks shall be repaired as directed by the Engineer.J. Upon request by the County,any settlement,sagging ofsurface,or cracking ofpavemerit shall be repaired immediately by and at the sole expense ofthePermitteeforaperiodofoneyearfollowingacceptanceofthework
<br />FAPERMITS COUNTEMgeneal provicionS\V interWeatberProvisions.docx
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