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GENERAL PROVISIONS
<br /> GOVERNING INSTALLATION OF SUBSURFACE STRUCTURES AND PIPELINES WITHIN COUNTY ROAD RIGHTS-0F-WAY
<br /> ! EusLIC CONVENIENQ5SAFETY
<br /> A Before obstrucbng arty private driveway entrance or County road traveled way with a trench, spoil bank, equipment or other barrier permitted for any
<br /> prolonged period of time,the Permittee shall nobly the known users of the respective thoroughfare(s)Involved,and shall provide accessor vehicular and f
<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 will be
<br /> maintained open to public traffic dunng working hours In a smooth and sale nding condition(s) Two lanes shall be open afterworking hours
<br /> 2 in cases where road closure Is permitted,the permission to dose the road will be granted under the condition that the Permittee notify the following
<br /> persons and/or 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 Sheriffs Office a The local school district
<br /> a The local postal service f The local residents involved
<br /> B Should hazardous conditions relative to the Installation operations warrant flagmen, as many capable flagmen as may be necessary shall be provided
<br /> by the Permittee and sta boned In advance of work to wam and direct traffic
<br /> C Ligh%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 lights,signs and barricades,shall be
<br /> removed from the fob site daily
<br /> It STRUCTURES
<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 shall
<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,or with other methods as may be permitted under the Special Provisions
<br /> C Cast-In-place concrete pipe,vitrified day 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 conditions as provided
<br /> D Ali structures to be buried 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 The depths of structures shall be established
<br /> below a fiat plane extending across the tights-of-way, no part of which shall extend above the elevations stated above manholes,lampholes,valves,eta,no
<br /> included Future surface elevations shall be anticipated as nearly as possible and structure elevations shall be established for future adjustment accordingly
<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 /> �F An Iongitudinal utility facilities are to be established (and dimensioned on sketches)from surveyed centerline of road right-of-way, not from nght-of-way
<br /> rdery lines
<br /> III REPAI tS OFT NRIGff-42F-WAY
<br /> A.All excavations shall be backfilled and compacted Immediately after work therein has ben completed
<br /> B 'trenches shalt not be left open farther than 300 feet In advance of pipe laying operations, or 200 feet to the rear thereof, unless othe
<br /> by the Engineer rwise permitted
<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 nght-of-way shall conform to the percentages of compaction as shown on the Trench Detalf
<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%compaction Is required,and two feet where 80%compacbon 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 bit
<br /> G All pavements,curbs,gutters,sidewalks,borrow ditches,pipes,head walls,road signs,trees,shrubbery, and/or other permanent road facilities
<br /> impaired 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 original grades and cross sections,and to a condition as good as, or better than existing prior
<br /> to construction
<br /> H All surfacing materials of roadways and driveway approaches cut or damaged by or as a result of construcbon operations,shall be replaced within
<br /> ONE WEEK following the backfilling of excavation,weather permitting,with compacted layers or surfacing materials at least as thick as the existing,and no
<br /> less than two Inches(2')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'8'one-half Inch(%")maximum
<br /> aggregate,coarse or medium gradation,as specified In Section 39 of the California Standard Specifications The bituminous binder to be mixed with
<br /> mineral aggregate shall be paving asphalt having an Aft viscosity grade of 4WO,unless otherwise directed by the Engineer Placement of asphalt
<br /> concrete surfacing shall conform to the applicable provisions of Section 39 of the Califomla Standard Specifications
<br /> Z 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 nghts-of-way, an unsightly and detrimental dirt, dust and/or debris shall be removed and the
<br /> construction areas left in a neat and presentable condition(s)
<br /> 1 If necessary,Caunty road traveled way and driveway pavements shall be washed with water to remove dirt and dust.
<br /> W2.Driveway approaches and field entrance pavements damaged by equipment or spoil banks shall be repaired as directed by the Engineer
<br /> Upon request by the County,any settlement,sagging of surface,or cracking of pavement shall be repaired immediately by and at the sole expense of
<br /> elmittee for a penod of one year following acceptance of the work
<br /> Form SS(Rev,enj Grow
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