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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 atrench,spoil bank,equipment or other barrier permitted for any
<br />prolonged-period oftime,the Permittee shall notify the knownusers ofthe respective thoroughfaze(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 mannerthat no less than one lane ofthe existing County road traveled waywill
<br />be maintained open to public traffic during working hours in a smooth 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 notifythe
<br />following persons and/or agencies ofthe time,the period ofclosure,and-the detour route atleast 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 ofSan Joaquin Sheriffs-Office e. The local school district
<br />C. 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-by thePermitteeandstationedinadvanceofworktowarnanddirecttraffic.
<br />C. Lights,signs and barricades shall be furnished,erected and maintained by the Permittee for the adequate warning and convenience ofthe 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 thejobsite daily.
<br />STRUCTURES:.
<br />A. Walls ofstructures shall be such quality and strengththat 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`follov.ing AmericanAssociation ofState Highway and transportation Officials(AASHTO)designations.
<br />I. For concrete pipe up to and including thirty-three inches(33")insidediameter,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 AASHTODesignation M 170M Class
<br />III.
<br />3. Plastic pipe conforming to AASHTO Designation M294.
<br />B. All concrete pipejoints with Countyroad rights-of-way shall be sealed against leakage and/oz infiltration with rubber gasket in conformance with Section
<br />65-1:06 ofthe California Standard Specifications,or with other methods as may be permittedunderthe Special Provisions.
<br />C. Cast-in-place concretepipe,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 ofthirty inches(30")to the
<br />centerline ofthe roadways and twelve inches(12")at the bottoms ofborrow ditches each side ofthe roadways. The depths ofstructures shall beestablished
<br />below aflat plane extending across the rights-of-way,no part ofwhich 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 Countyhereby reserves the right to specify in the Special Provisions the gage and surface treatment ofany 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 ofroad 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 ofpipe laying operations,or 200 feet to the rear thereof unless otherwise permitted bythe
<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 inhorizontal uniform layers not to exceed inthickness,before compaction,0.67 foot inthe bedding region,one—foot where
<br />90%compaction is required,and two-feet where 80%compaction is required.
<br />E. No portion ofthe 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 ofthe 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 ofcompaction shall not be greater than 18"centers and to the full
<br />depth ofthe lifL
<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 atthe construction site(s)occupied by materials and/orequipment,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 ofroadways and driveway approaches cut or damaged by or as a result of construction.operations,shall be replaced within'ONE
<br />WEEK following the backfilling ofexcavation,weatherpermitting,with compacted layers ofsurfacing materials at least as thick as the existing,and no less
<br />than two inches(2'ofasphalt concrete over six inches(6'of aggregate base,both as specified below.
<br />h. Asphalt Concrete:Combined mineral aggregate shall conform to the quality and gradation requirements forType`B"-one-half inch(1/2)
<br />maximum aggregate,coarse or medium gradation as specified in Section 39 ofthe California Standard Specifications. The bituminous binder to
<br />be mixed withmineral 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 ofthe 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 />L Before acceptance of repairs to the County roadrights-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- Ifnecessary,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 ofsurface,or cracking of pavemerit shall be repaired immediately by and at the sole expense ofthe
<br />Permittee for a period ofone year following acceptance ofthe work
<br />FAPERMITS COUNTEMpneralprovisions\Winter WeatherProvisions.docx
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