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GENERAL PROVISIONS
<br /> GOVERNING INSTALLATION-OF SUBSURFACE STRUCTURES AND PIPELINES WITHIN COUNTY ROAD RIGHTS-OF-WAY
<br /> 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 period of time,the Pe_*mittee shall notify the known users of the respec—tive 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 will
<br /> be maintained open to public traffic during working hours in asmooth and safe riding condition(s). Two lanes shall be open after working hours.
<br /> 2. In cases where road closure is permitted,the permission to close the road will be granted under the condition that the Permittee notify the
<br /> following 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 e. The local school district
<br /> C. The local postal service £ 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 by the
<br /> 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 of pedestrian traffic,uncontrollable by lights,signs and barricades,shall be
<br /> removed from the jobsite daily.
<br /> STRUCTURES:
<br /> A. Walls of structures 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 hazard
<br /> 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(33")inside diameter,extra strength concrete conforming to AASHTO Designation M
<br /> 170M.
<br /> 2. For concrete pipe thirty-six inches(36")inside diameter and larger,reinforced concrete pipe conforming to AASHTO Designation M 170M Class
<br /> III.
<br /> 3. Plastic pipe conforming to AASHTO Designation M294.
<br /> B. All concrete pipe joints with County road rights-of-way shall be sealed against leakage and/or,infiltration with rubber gasket in conformance with Section
<br /> 65-1:06 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 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 conditions as provided.
<br /> D. All structures to be buried within the County rights-of-way shall be set at such elevations as to allow minimum coverage of thirty inches(30")to the
<br /> centerline of the 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 flat plane extending across the rights-of-way,no part of which shall extend above the elevations stated above;manholes,lampholes,valves,etc.not
<br /> included. Future surface elevations shall be anticipated as nearly as possible and structure elevations shall be established for future adjustments 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 is to be
<br /> 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-of-way
<br /> (border)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.
<br /> B. Trenched 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 by the
<br /> Engineer.
<br /> C. Unless otherwise permitted under the Special Provisions,backfill shall be placed and mechanically compacted in such a manner that the relative compaction
<br /> throughout the entire fill within the County road right-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 where
<br /> 90%compaction is required,and two-feet where 80%compaction is required.
<br /> E. No portion of the excavation(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 a size and type approved by the Engineer. Points of compaction shall not be 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,shrubbery,and/or other permanent road facilities impaired by
<br /> or as a result of construction operations at the construction site(s)occupied by materials and/or equipment,shall be restored immediately upon backfilling of
<br /> the excavation to the original grades and cross sections,and to a condition as good as,or better than existing prior 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 ONE
<br /> WEEK following the backfilling of excavation,weather permitting,with compacted layers of surfacing materials at least as thick as the existing,and no less
<br /> 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`B"one-half inch(1/2)
<br /> maximum aggregate,coarse or medium gradation as specified in Section 39 of the California Standard Specifications. The bituminous binder to
<br /> be mixed with mineral aggregate shall be paving asphalt having(Grade PG 64-10),unless otherwise directed by the Engineer. Placement of
<br /> asphalt concrete surfacing shall conform to the applicable provisions of Section 39 of the California Standard Specifications.
<br /> 2. Aggregate Base: Combined mineral aggregates shall conform to the quality and the grading for three-quarter inch(3/4")maximum size
<br /> aggregate Class 2 Aggregate Base specified in Section 26 of the California Standard Specifications.
<br /> 1. 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 construction
<br /> areas left in a neat and presentable condition(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 the
<br /> Permittee for a period of one year following acceptance of the work.
<br /> F:\PERMITS COUNTER\general provisionsMiinter Weather Provisions.docx
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