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<br /> GOVERNING INSTALLATION OF SUBSURFACE STRUCTURES AND PIPELINES WITHIN COUNTY ROAD RIGHTS.OF-WAY
<br /> IEUMAV ND F
<br /> A. Before obstructing any private driveway entrance or County road traveled way with a trench,spoil hank, equipment or other barrier permitted for an
<br /> prolonged period of bme,the Permittee shall notify the known users of the respective thoroughfare (s)Involved,and shall provide access for vehicular and
<br /> pedestrian traffic to and from the road
<br /> 1 Unless otherwise permitted,all work shall be conducted in such a manner that no less than one lane of the existing County road traveled way wt11 be
<br /> maintained open to public traffic during working hours in a smooth and safe riding condition(s) Two lanes shall be open after Wo6drig hours
<br /> 2 In cases where road closure Is permitted,the permission to close the toad will be granted under the condition that the Permittee notify the following
<br /> persons and for agencies of the time,the period of closure,and the detour route at least twenty-four(24)hours prior to said road closure
<br /> a The County of San Joaquin Public Works Department d The local fire district
<br /> b The County of San Joaquin Shenffs Office a The local school district
<br /> r-The local postal service f The local residents Involved
<br /> B Should hazardous condibons relative to the Installation operations warrant flagmen, as many capable flagmen as may be necessary shat)be provided
<br /> by the Permittee and stationed In advance of work to warn and direct traffic
<br /> C Lights,signs and barricades shall be furnished,erected and maintained by the Permittee for the adequate warning and convenience of the public,with
<br /> particular attention to be taken In this regard after dark.
<br /> D Any excess dirt and/or debris which might be a hazard to either automobile or pedestrian traffic, uncontrollable by fights,signs and barricades,shall be
<br /> removed from the job site daily
<br /> 11TARES
<br /> A.Walls of structure 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
<br /> hazard or maintenance problem at any time Therefore,the minimum structural requirements for concrete pipe placed under County road rights-of-way shalt
<br /> conform to the following American Association of State Highway and Transportation Officials(AASHTO)designations
<br /> 1 For concrete pipe up to and including thirty-three Inches(331)Inside diameter, extra strength concrete pipe conforming to AAgHTO Designation
<br /> M 170M
<br /> 2.For concrete pipe thirty-six Inches(36")Inside diameter and larger, reinforced concrete pipe conforming to AASHTO Designation M 170M,Class IIi
<br /> 3 Plastic pipe conforming to AASHTO Designation M 294
<br /> B All concrete pipe joints within County road rights-of-way shall be seated against leakage and/or Infiltration with rubber gaskets In conformance with
<br /> Section 65-106 of the California Standard Specifications,ar with other methods as may be permitted under the Special Provisions
<br /> 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 road
<br /> rights-of-way unless specifically so stated In the Special Provisions, and only under the oondidons as provided
<br /> D AD structures to be buned within the County road rights-of--way shall be set at such elevations as to allow minimum coverages of thirty inches(30")at
<br /> the centerline of roadways and twelve Inches(12')at the bottoms of borrow ditches each side of the roadways T]he depths of structures shall be established
<br /> below a flat plane extending across the rights-of-My,no part of which shall extend above the elevations stated above manholes,lampholes,valves,etc.,no!
<br /> included Future surface elevations shall be anticipated as nearly as possible and structure elevations shall be establishr�d for future adjustment axordingy
<br /> E The County hereby reserves the right to specify In the Special Provisions the gage and surface treatment of any galvanized corrugated metal pipe that
<br /> is to be Installed
<br /> 0F An longitudinal ublity facilities are to be established(and dimensioned on sketches)from surveyed centerline of road right-of-way, not from right-of-way
<br /> rder)lines
<br /> ill REPAT F TH NRIG - WAY
<br /> A.All excavations shall be backfilled and compacted Immediately after work therein has ben completed
<br /> B Trenches shall not be left open farther than 300 feet In advance of pipe laying operations, or 200 feet to the rear thereof, unless otherwise permitted
<br /> by the Engineer
<br /> C Unless otherwise permitted under the Special Provisions,backfill shall be placed and mechanically compacted in such a manner that the relative
<br /> compaction throughout the entire fill within the County road right-of--way shall conform to the percentages of compaction as shown on the Trench Detan
<br /> 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 foot
<br /> where 90%compaebon is required,and two feet where 80%compaction is required
<br /> E No portion of the excavabon(s)shall be compacted by ponding or jetting unless a maintenance bond Is provided
<br /> F Gravel backfill material shall be utilized only where specifically so stated on the face of the permit it shall be compacted by means of a high frequency
<br /> internal vibrator,the compactor to be of a size and type approved by the Engineer Points of compaction shall be not greater than 18'centers and to the full
<br /> depth of the lift.
<br /> G Ail pavements,curbs,gutters,sidewalks,'bonow ditches,pipes,head walls,road signs,trees,shrubbery,and/or other permanent road facilities
<br /> urrpalred by or as a result of construction operations at the construction sde(s) or at other ground(s)occupied by materials and/or equipment,shall be
<br /> restored Immediately upon backfilling of the excavation to the onginal grades and cross sections, and to a condition as good as, or better than existing prior
<br /> to construction
<br /> H All surfacing matenals of roadways and driveway approaches cut or damaged by or as a result of construction operations,shall be replaced within
<br /> ONE WEEK following the backfilling of excavation,weather permitting,with compacted layers of surfacing materials at least as thick as the existing,and no
<br /> less than two Inches(21 of asphalt concrete over six Inches(6")of aggregate base,both as specified below
<br /> 1 Asphalt Concrete Combined mineral aggregate shall conform to the quality and gradation requirements for Type'B"one-half inch(''Al maximum
<br /> aggregate,coarse or medium gradation,as specified In Section 39 of the California Standard Specifications The bituminous binder to be mixed wait
<br /> mineral aggregate shall be paving asphalt having an AR viscosity grade of 4000, unless otherwise directed by the Engineer Placement of asphalt
<br /> concrete surfacing shall conform to the applicable provisions of Section 39 of the California Standard Spec3fications
<br /> 2-Aggregate Base Combined mineral aggregates shall conform to the quality and the grading for three-quarter inch(3/4")maximum size aggregate.
<br /> Class 2 Aggregate Base specified in Section 26 of the California Standard Specifications
<br /> I 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
<br /> construction areas left in a neat and presentable condt0on(s)
<br /> 1 If necessary,County road traveled way and driveway pavements shall be washed with water to remove dirt and dust.
<br /> Z Driveway approaches and field entrance pavements damaged by equipment or spoil banks shall be repaired as directed by the Engineer
<br /> weJ Upon request by the County,any settlement,sagging of surface,or craclung of pavement shall be repaired immediately by and at the sole expense of
<br /> rmittee for a penod of one year following acceptance of the work
<br /> Fours SS(Revr-km-raoi
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