|
GENERAL PROVIS16NS
<br />GOVERNWG INSTALLATION OF SUBSURFACE STRUCTURES AND PIPELEM WITBM\T COUNTY ROAD RIGHT'S-0F..yiTAY
<br />EUBLIC CON47ENMNCE AND SAFETY:
<br />A $efore obstructing any private driveway entrance or County road traveled way with a trench, spoilbank equipment or other barrier permitted for any
<br />prolong 4period ofiime, the PemitfecshaR notifythe lofown users of the respective tho:oughbwa(s) involved, and shallprovide access for velucularand
<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 ofthe existing Couiz<y road traveled way will
<br />be maintained open to public traffic duringworldng 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 file permittee notify the
<br />following persons and/or agencies of th -time, the period of closure, and fire detour route at least tvrenty four (24) hones prior to said road closure.
<br />a. The County. of San Joaquin Public Works Department _d_ The local fire district
<br />b. II or County of San Joaquin Sheriff s Office, as Thelocalschooldistrict
<br />c. The local postal service £ The localresidentsiavolved
<br />B. Should hazardous conditions relafive to fbs installation operations warrant fagmen, as many capable f agmen as may be necessary shall b6 provided -by the
<br />Permittee and stationed in advance ofworkto warn and direct traffic. a .
<br />.C. Lights, signs and barricades shall be furnished, erected and maintained by The Pe• mittee for the adequate warning and eonverdtace 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 ahazarii to either automobile of pedestrian traffic uncontrollabIa by lights, signs and barricades, shaII be
<br />. removed from the jobsite daily. ,
<br />STRUCTURES:.
<br />A WaIIs of siructm-es shall' be such quality and sfreaigth that they w>v resist all pressures and will not crack or be defbmed in such a way as to create ahazard
<br />or maintenance problem at any time. TSerefore, the minimum stmetural requirements for cpncrete pipe placed under county road rights-of-way shall
<br />conform to ffe`fbIlowing American•Assooiation of State Highway and transportation Officials (AASIITO)• designafions.
<br />I. For c6ncrete pipe up to and incIuding tbirty three inches (33') inside• diameter, extra strength concrete conforming to AASI3T0 Designation M
<br />170M
<br />-2. For concrete pipe thirty-six inches (30) inside diameter and larger, reinforced concrete pipe confdrming to AA SHTO Des bgaafion M 170M Class
<br />M
<br />3. Plastic pipe contbrmingto AASl3TO Designation M294.
<br />B. All concrete pipe joints with County road rights -of --wap shall be sealed against leakage andlor.infiltiationwith rubber gasket in conformance with Section
<br />65-1:06 ofthe California Standard Specifications, or with other methods as maybe permitted underthe 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 Spectral Provisions, and only under the conditions as provided.
<br />D.. All stznctures to be'buried within the County rights -of --way shall be set at such elevations as to at3ow minimum coverage of thirty inches (30") to the
<br />centerline of the roadways and twelve inches (IT) atthe bott6ms of borrow ditches each side of the roadways. The depths of structures shall be established
<br />below a flat plane extending across the rigbts-of-way, no part of which shall extend above the elevations stated above; manholes, lampholes,valvm, etc, not
<br />included. Future surface elevatitins shall be anticipated as nearly as possible and structure elevations shall be established for future adjusiaents'amordingly.
<br />E. The County hereby reserves the right to specify in the Special Provisions the gage and surface treatment of any galvanized comgafed metal pipe that is to be
<br />installed.
<br />F: All longitudinal utility facilities arc to be established (and dimensioned on sketches) from surveyed centerline of road right o. way, not from rigbt of -way
<br />(border) lines.
<br />REPAIRS
<br />OF THE coU1,TYRI==oF
<br />=wAY:
<br />A All excavations shall be backfilled an
<br />d compacted immediately after work therein has been completed.
<br />$. Trenched shalt not b e Ieft open farther than 3 DO feet in advance of pipe Iaying operations, or 200 feet to the rear thereof unless otherwise permitred by the
<br />Engineer. •
<br />C. 1 Unless otherwise permitted under the Special Provisions, backfill 'shall be placed and mechanically compacted in such amanner that the relative compaction
<br />throughout the entire fillwithin the County road righfof-way shall conform to the percentages of compaction as shown on the Trench detail.
<br />D. BacIdllmaterial shall beplaced inhorizontal uniform layers not toexceed inthickness,beforecompaction,0.67footin!hebeddingregiori,one footwhere
<br />90% compaction is required, and two feet where SD% compactionisrepired
<br />E. No portion of the excavations) shaTbe compacted by ponding or jetting unless a.maintenance bond is provided
<br />F. Gravel backfdl material shall be utilized only where spedh ically so stated on the face ofthepemiit 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 M I I .
<br />G. All pavements, curbs, gutters, sidewalks, b'oirow ditches, pipes, head walls, road signs, trees, shrubbery, and/or other pemanent 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 guides and cross sections, and to a condition as good as, or better than existing prior to construction.
<br />IL ' All surfacing materials ofroadways and driveway approaches cut or damaged by or as a.result of construction operations, shall be replaced wftdda*ONE
<br />WEEK following the backfilling of excavation, weather permitting with compacted layers of sudaciagmaterials at lent as thick as the existing, and no less
<br />than two inches (2") of asphalt concrete over six inches (6') or 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 incIr(I/2)
<br />maximum aggregate, coarse ormedium 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 direemd. 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 confoim to the qualify and the grading for three-quarter inch (3/4") maximum size
<br />aggregate Class 2 Aggregate Base, specified in Section 26 ofthe California Standard Specifications,
<br />L Before acceptance of tepairs to the County road rights-ofway, 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 sha114 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 />1 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 aperiod of one year following acceptance of the work_
<br />F:1PI:RMPi•S COi1N,[ER1,generalprorisionslWin
<br />terweatherProvisions_docx
<br />
|