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GENERAL. PR VISIONSn
<br /> GOVERNING INSTALLATION OF SUBSURFACE STRUCTURES AND PIPELINES WITHIN COUNTY ROAD RIGHTS OF '4AY
<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
<br /> other barrier permitted for any prolonged period of time, the Perr„it ee shall notify the known users of the respective thoro-
<br /> fare(s) involved, and shall provide access for vehicular and pedestrian traffic to and from the road,
<br /> 1. Unless otherwise permitted in the Special Provisions, all work shall be conducted in such a manner that no less
<br /> than one (1) lane of the existing County road traveled way will be maintained open to public traffic at all times in (a) smooth
<br /> and safe-riding condition(s).
<br /> 2. In cases where road closure is permittee, the permissi n to close the road will be granted under the condition
<br /> that the Permittee notify the following persons and/or agencies of t e time, the period of closure, and the detour route at
<br /> least twenty-four (24) hours prior to said road closure:
<br /> a. The County of San Joaquin Highway Department d, The local fire department
<br /> b, The County of San Joaquin Sheriff's office e. The local school districts
<br /> C. The local postal carrier f. The local residents involved
<br /> B. Should hazardous conditions relative to the installation operations warrant flacmen, as many capable flagmen as may
<br /> be necessary shall he provided by the Permittee and stationed in advance of work to warn and direct traffic.
<br /> C. Lights, signs and barricades shall be furnished, erected a d maintained by the Permittee for the adequate warning
<br /> and convenience of the public, with 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
<br /> lights, signs and barricades, shall be removed from the job site daily.
<br /> II. STRUCTURES:
<br /> A. walls of structure shall be of such a quality and strength that they will resist all pressures and will not crack-or
<br /> be deformed in such a way as to create a hazard or maintenance problem at any time. Therefore, the minimum structuralrequire
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<br /> ments Ear concrete pipe placed under County road rights of way shall conform to the following American Society of Testing
<br /> Material designations:
<br /> 1. For concrete pipe up to and including twenty-one inch (21”) inside diameter, extra strength concrete pipe con-
<br /> forming to A.S.T.M. Designation C-14.
<br /> 2, For concrete pipe twenty-four inches' (24") inside diameter and larger, reinforced concrete pipe conforming to
<br /> A.S.T.M. Designation C-76, Class III.
<br /> B. All concrete pipe joints within County road rights of way shall be sealed against leakage and/or infiltration with
<br /> rubber gaskets in conformance with Section 65-1,06B of the California Standard Specifications, or with other methods as may
<br /> be permitted under the Special Provisions.
<br /> C. Cast-in-place concrete pine, vitrified clay pipe, spiral welded steel pipe, or corrugated aluminum alloy pipe shall
<br /> not be installed within the County road rights of way unless soecific lly so stated in the Special Provisions, and only under
<br /> the conditions as provided.
<br /> D. All structures to be buried within the County road rights of way shall be set at such elevations as to allow minimum
<br /> coverages of thirty inches (30") at the centerline of roadways and twelve inches (12") at the bottoms of borrow ditches each
<br /> side of the roadways. The depths of structures shall be established below a flat plane extending across the rights of way, no
<br /> part of which shall extend above the elevations stated above; manholes, lampholes, valves, etc., not included.
<br /> Future surface elevations shall be anticipated as nearly as possible and structure elevations shall be established
<br /> for future adjustment accordingly.
<br /> E. The County hereby reserves the richt to specify in the Special Provisions the gage and surface treatment of any
<br /> galvanized corrugated metal pipe that is to be installed.
<br /> F. All longitudinal utility facilities are to be established ( nd dimensioned on sketches) from surveyed centerline
<br /> of road right of way, not from right-of-way (border) lines.
<br /> III. REPAIRS OF THE COUNTY RIGHT OF WAY:
<br /> A. All excavations shall be backfilled and compacted immediate v after work therein has been completed.
<br /> B. Trenches shall not be left open farther than 300 feet in ad ante of pine laying operations, or 200 feet to the rear
<br /> thereof, unless otherwise permitted by the Engineer.
<br /> C. Unless otherwise permitted under the Special Provisions, ba kfill shall be placed and mechanically compacted in such
<br /> a manner that the relative compaction throughout the entire fill within the County road richt of way shall conform to the
<br /> percentages of compaction as stated below.
<br /> 1. . The relative compaction from tae bottom of excavation t a plane three feet `.3') below original surface grades
<br /> shall be no less than eighty per cent (804), as determined by Test Ido hod No. Calif, 216 of the Materials and Research Depart-
<br /> ment, State of California, Department of Public Works, Division of Highways,
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<br /> 2. The relative compaction from a' plane three feet (3') below the original surface grade to said original surface
<br /> grade shall be no less than ninety per cent (908), as determined by the above testing method.
<br /> D. Backfill material shall be placed in horizontal uniform layers not to exceed in thickness, before compaction, 0.67
<br /> foot in the bedding region, one foot where 901 compaction is required and two feet where 808 compaction is required.
<br /> E. uo portion of the excavation(s) shall be compacted by ponding or jetting.
<br /> F. Gravel backfill material shall be utilized only where specifically so stated on the face of the permit. It shall be
<br /> compacted by means of a high frequency internal vibrator, the Compactor to be of a size and t;•pe approved by the Engineer.
<br /> Points of compaction shall be not greater than 18" centers and to the full depth of the lift.
<br /> G. All pavements, curbs, gutters, sidewalks, borrow ditches, n pes, headwalls, road signs, trees, shrubberv, and/or
<br /> other permanent road facilities impaired by or as a result of construction operations at the construction site(s) . or at other
<br /> ground(-s) occupied by materials and/or equipment, shall be restored immediately upon backfilling of the excavation to the or-
<br /> iginal grades and cross sections, and to a condition as good as, or better than existed prior to the construction,
<br /> H. All surfacing materials of roadways and driveway approaches cut or damaged by or as a result of construction opera-
<br /> tions, shall be replaced -within ONE WEEK following the backfilling of excavation, weather aer"ittino, -with compacted layers of
<br /> surfacing materials at least as thick as Che existing, and no less th n two inches (2") of asphalt concrete over six inches
<br /> (6") of aggregate base, both as specified below.
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<br /> 1. Asphalt Concrete: Combined mineral aggregate shall con orm to the quality and gradation requirements for Type
<br /> "9" one-half inch (1/2") maximum aggregate, medium gradation, as spec Pied in Section 39 of the California Standard specifica-
<br /> tions. The bituminous binder to be mixed with mineral aggregate shal be paving asphalt having a penetration range of
<br /> 85-100, unless otherwise directed by the Engineer.
<br /> In cases where approved by the Engineer, a suitable col -laid asphalt concrete mixture ("cut-back") may be used i
<br /> in place of the above specified asphalt concrete.
<br /> Placement of asphalt concrete surfacing shall conform to the applicable provisions of Section 39 of the
<br /> California Standard Specifications.
<br /> 2. Aggregate Base: Combined mineral aggr,gate shall confo , to the quality and the gradinq for three-quarter inch
<br /> (3/4") maximum size aggregate - Class 2 Aggregate Base specified in 5 ction 26 of the California Standard Specifications.
<br /> I. Before acceptance of repairs to the County road riches of w y, all unsightly and detrimental dirt, dust and/or debris
<br /> shall be removed and the construction area(s) left in (a) neat and ur sentable condition(s).
<br /> 1. If necessary, County road traveled way and driveway pav meats shall be washed with water to remove dirt and dust.
<br /> 2. Driveway approaches and field entrance pavements damage by equipment or spoil banks shall be repaired as
<br /> directed by the Engineer.
<br /> J. Upon request by the County, any settlement, sagging of surface, or cracking of pavement shall be repaired immediately
<br /> by and at the sole expense of the Permittee for a period of ninety M) days following the acceptance of repairs to the
<br /> County rights of way.
<br /> Form SS {Revised 5/71) '
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