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c,tNtRAL_FR0VISI0NS
<br /> GOVERNING INSTALLATION OF SUBSURFACE STRUCTURES AND PIPELINES WITHIN COUNTY ROAD RIGHT'S.OF_WAY
<br /> I 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 any
<br /> prolonged penod of time,the Permittee shall nobly 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 othermse permitted,all work shall be conducted in such a manner that no less than one lane of the-existing County road traveled way M11 t
<br /> maintained open to public traffic during working hours in a smooth and safe ndng condition (s) Two lanes shall be open sitar working 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 followlnE
<br /> persons and/or agencies of the time,the period of closure,and the detour route at least twenty-four(24)hours pnor 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 provide
<br /> by the Permittee and stationed In advance of work to wam and direct traffic
<br /> C tights,signs and barricades shall be furnished,erected and maintained by the Permittee for the adequate warning and convenience of the public,wit
<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 k
<br /> removed from the fob site daily
<br /> It ST13!J .TURES
<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 she
<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(33`)inside diameter,extra strength concrete pipe conforming to AA4HTO Designation
<br /> M 170M
<br /> 2 For concrete pipe thirty-six Inches(38")Inside diameter and larger, reinforced concrete pipe conforming to AASHTO Designation M 170M,Class 11
<br /> 3 Plastic pipe conforming to AASHTO Designation M 294
<br /> B Ali concrete pipe Joints within County road rights-of-way shall be sealed 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-[n-place concrete pipe,vitrified clay pipe,spiral welded steel pipe, or corrugated aluminum alloy pipe shall not be Installed within the County ror
<br /> rights-of-way unless specifically so stated In the Special Provisions,and only under the conditions as provided
<br /> D All structures to be buned within the County road rights-of-way shall beset at such elevations as to allow minimum coverages of thirty Inches(30")a
<br /> the centerline of roadways and twelve Inches(12")at the bottoms of borrow ditches each side of the roadways The depths of structures shalt be establish(
<br /> below a flat plane extending across the rights-of-way, no part of which shalt extend above the elevations stated above manholes.IamphoIes,valves,etc.,r
<br /> Included Future surface elevations shall be anticipated as nearly as possible and structure elevatlons shall be established for future adjustment according(
<br /> E The County hereby reserves the nght to specify in the Special Provisions the gage and surface treatment of any galvanlzed corrugated metal pipe the
<br /> Is to be Installed
<br /> F All longitudinal utility facilities are to be established(and dimensioned on sketches) from surveyed centerline of road right-of-way,not from right_cf wa,
<br /> (border)lines
<br /> III R9PAtRO T N lG - F-W Y
<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 /> compacbon throughout the entire fill within the County road nght-of-way shall conform to the percentages of compaction as shown on the Trench Detail
<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 feel where 80%compaction Is required
<br /> E No porUon of the excavabon(s)shall be compacted by ponding or Jetting unless a maintenance bond is provided
<br /> F Gravel backrill material shall be utilized only where specifically so stated on the face of the permit. 1t shall be compacted by means of a high frequent
<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 ful
<br /> depth of the IrfL
<br /> G All pavements,curbs,gutters,sidewalks, borrow ditches,pipes,head walls,road signs,trees,shrubbery, and/or other permanent road facilities
<br /> restored d Imaired yOr as a mediately upotn backri I ngtion operations at of the excavation tothe original 1grades and crosther s sections, and to occupied cond,U n as good aenals s,or equipment,
<br /> existing prior
<br /> to construction
<br /> H All surfacing materials 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 matenals at least as thick as the existing,and nc
<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 gradabon requirements for Type"B'one-half inch(%)maximum
<br /> aggregate,coarse or medium gradation, as specified In Section 38 of the California Standard Sperafications The bituminous binder to be mixed wit
<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 shalt conform to the applicable provisions of Section 39 of the California Standard Specificabons
<br /> 2-Aggregate Base Combined mineral aggregates shall conform to the quality and the grading for three-quarter inch(3/41 maximum sizo aggregate.
<br /> Class 2 Aggregate Base specified In Section 26 of the California Standard Specifications
<br /> 1 Before acceptance of repairs to the County road nghts-of-way, all unsightly and detrimental dirt,dust and/or debris shall be removed and tho
<br /> construction areas left in a neat and presentable condibon(s)
<br /> 1 If necessary,County road traveled way and driveway pavements shall be washed with water to remove dirt and dust.
<br /> 2.Driveway approaches and field entrance pavements damaged by equipment or spoil banks shall be repaired as directed by the Engineer
<br /> * J 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 /> e Permittee for a period of one year following acceptance of the work
<br /> Form SS(Revicm wom
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