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GENERAL PROViSIONS
<br /> GOVERNING INSTALLATION OF SUBSURFACE STRUCTURES AND PIPELINES VAT'r,:N COUNTY ROAD Mr,HITS-OF AL'/AY
<br /> (, PUBLIC CONVENIENCE AND SAFETY:
<br /> A. Before obstructing any private driveway entrance or County road traveled.way with a trench,spoil tank,equipment or other barrier permilted for any....,
<br /> prolonged period of time,the Permittee shall notify the known users of the respective,thoroughfare(s)inv;;lved, and shall provide access for vehicular and
<br /> pedestrian traffic to and from the road.
<br /> 1. Unless otherwise permitted,all work shalt be conducted in such a manner that no less than one'la-e of the existing County road traveled way will by
<br /> maintained open to public Uaf is duringorki r in a smooth and safe riding condition(s):T-wo lanes shall been a"er vro'cin hours,
<br /> 2. In cases where road closure is permitted,the permission to close the road will be granted under ,e condition that the Permittee notify the follp`ving
<br /> persons and lot agencies of the time,the period of closure, and the detour rout>_at least lwentyfcur(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 Once . ' e.The local school disL:cC
<br /> c.The local postal service f.The focal residents Irvolved .
<br /> B.Should hazardous conditions relative to the installation operations warrant flagmen,as many capab'�a flagman as may be necessary sha;l 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 ad-juate warning and convenience of the public,with
<br /> particular attention to be taken in this regard after dark,
<br /> D.Any excess dirt andlor debris which might be a,hazard to either automobile or pedesLian.traffic,Eur:=ntroilable by lights,signs and barica__s,shall be.
<br /> removed from the job site daily,
<br /> 11. STRUCTURES:
<br /> A.Walls of structure shall be such quality and strength that they wit[resist all pressures and will not c.-_-ic or be deformed fi s,.,-ch a way as to create a
<br /> hazard or maintenance problem at any time.Therefore,the minimum structural requirements for concrete pipe placed under,Coc;lty road rights-of-way shall
<br /> conform to the following American Association.of State kligt y 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 AASH T 0 Designation
<br /> h1 170M.
<br /> 2. For concrete pipe thirty-six inches.(36'inside diameter and larger, reinforced concrete pipe conforming to AASHTO Designation M 170id,Class 111.
<br /> 3. Plastic pipe conforming to AASHTO Designation fid 294,
<br /> B.All concrete pipe joints within County road rights-of-way shall be sealed against leakage and/or infil_aticnwith tubber gaskets in conformaacz with
<br /> Section 65-1.06 of the California Standard Specifications,orwhii 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 aCcf pipe shall not be installed within the Cotinty road
<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 buried within the County road rights-of-vray shall be set at such elevations as to allow minimum coverages of thirty Inches(30'x._-'.;:.
<br /> the centerline of roadways and twelve Inches(12'at the bottoms of borrow ditches each side of the roadxays.The depths of structures shall to estabtis
<br /> below a flat plane:extending across the rights-of-way,no part of which shall extend above the elenUons stated above:manholes,larnpholes,va:ves,etc.,'"i
<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 L`ie gage and surface trea.tnent of any galvanized corrugated mesal pipe that
<br /> Is to be installed.
<br /> F.All longitudinal utility facilities are to be established(and dimensioned on sketches)L-on surveyed centerline of road right-ef-way,not from.eght-of-way
<br /> (border)lines.
<br /> 119. REPAIRS OF THE COUNTY RIGHT-OF-WAY:
<br /> A.All excavations shall be backfilled and compacted imme6atefy after work therein has ben conpletel.
<br /> B.Trenches shall not be left open farther than 300 feet in advance of pipe.laying cperations-,or 200 fee'to the rear the,eof,u-.ess otherrris=pe milted '
<br /> by the Engineer.
<br /> C.Unless otherwise permitted under the Special Provisions,backfill shall be placed and mechanically compacted in such a r„anner that the relative
<br /> compaction throughout the entire fill within the County road right-of-way sha11 conform to the percentages of compaction as shown on the Treruh Detail.
<br /> D. Backrill material shall be placed in horizontal uniform layers not to exceed In thickness,before ccim;action,0.67 foot in the bedding region,one foot
<br /> where 90%compaction is required,and two.feet where 8015 compaction is required.
<br /> E. No portion of the excavation(s)shall be compacted by ponding or jetting'unless a maintenance bore 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 t}7 means of a h `rfrequenq
<br /> ln'.ernal 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.All pavements,curbs,gutters,sidewalks.borrow ditches,pipes,head walls, road signs,trees,shnvt bery,andlor other per—manent road fa-_GGes
<br /> impaired by or as a result of construction operations at the construction site(s),or at other ground(s)occupied by materials andlor 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 cp.struction operations,shall be replaced within
<br /> C." E_WEEK fcllowing the backfilling of excavation,weather permitting,with compacted layers of surfacing materials at least as thick as the exis:,rg,and no
<br /> less than two inches (2")of asphalt concrete over six inches(6-)of aggregate base,both as specified be!:FH.
<br /> I.Asphalt Concrete:Combined mineral aggregate shall conform to the quality and gradation requirements for Type'S'one-half inch(Yah maximum
<br /> acgregate, coarse or medium gradation,as specified in Section 39 of the Cali(omia Standard SpedHcations.The biturnincus 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 shall conform to the applicable provisions of Section 39 of the.Caliifornia Starch d Specifications. _
<br /> 2.Aggregate Base:Combined mineral aggregates shag can the quatity and Lye grading for V~ ee-quarteIr inch.(314`.naximun size n 3tag�.e_: :
<br /> Class 2 Aggregate Base specified in Section 25 of the California Standard Specificluaris.
<br /> L Before acceptance of repairs to the County road rights of-way,all unsightly and detrur e-tel dirt,dust a-d/ordebris shall be removed and the
<br /> c:nstruction areas left in a neat and presentable condition(s).
<br /> 1.11 necessary,County road traveled way and driveway pavements shall be washed with water to remove dirt and dusL
<br /> 2.Driveway approaches anfield entrance pavements damaged by equipment or spot banks shall to 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 atthe sate expense c
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