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,. <br />GENERAL PR0VISIONS <br />GOVERNING INSTALLATION OF SUBSURFACESTRUCTURES AND PIPELlNES WITHIN eDUNTY ROAD-R1GHTS-OF-WAY . <br />PUBLIC CONVENIENCE AND SAFETY: <br />A Before obstructing any private driveway entrance or County road traveled waymth a trench,spoil bank.equipment or other barrier permitted for any <br />prolonge.d..period o4ime,the Permittee-shall notifY the known us~oithe respective th.oroughfare(s)involved.and shall provide access fOf vehicular andpedestriantrafficto.and from the road.. <br />1.Unless otherwise 'permitted.all work shall be conducted in such a manner that no less than 6Ile lane ofthe existipg County road traveled way will <br />be maintained open to public traffic during working hours in a smooth.?D.d safe riding conditiones).Two lanes shall be open after working hours. <br />2.Tncases where road closure is permitted,the permission to close the road will be graE.tedunder .the condition that the Permittee notiiy the <br />falTowing persons andror agencies oftb.e time,the period of closure,and.me detour route.at least tWenty.Jour (24)hours prior to said.road closure. <br />a.The County ,iSan Joaquin Public Works Department _d.The local fire district <br />b.The County of San Joaquin Sheriff's Office e.The local school district <br />c.The local postal service f The local residents mvolved <br />B.Should hazardous Conditions relative tot1reinstallatiou..operntions warrant tIa..:.omen,as many capable f1:agmen as may be:necessary shall beprovided_by thePfmIlitteeandstationedinadvanceofworktowamanddirecttraffic.. <br />.c.Lights,signs and barricades shall be furnished,erected and maintained by the Permittee forthe adequate warning and IA)nyenien~of the public.with. <br />particular attention to be taken in this regard after dark. <br />D...kJ.yexcess dirt and/or debris which might be ahazard to either automobile or'pedestrian traffic,TJOcontroliable by lights,signs and barricades,shall bo <br />re.maved from thejobsite daily. <br />STRlJCTURES,. <br />A Walls of structures shall be such quality and strength that tbey will resist all pressures an:dwill not cracker be deformed in such a way as to create ah~d <br />.or maintenance problem at any time.Tfierefore.the minimum structural requirements for concrete pipe placed under county road rights-of-way shall <br />conform to the'follO'\ving American Association ofS~Highway and transportation Officials (AASHTO)designations.. <br />1.For c6ncrete pipe up to and including thirty-three inches (33")Inside-diameter.extra strength concrete conforming toAASHTO Desigcation M170M. <br />..2..For concrete pipe thirty-six inches (36'")inside diameter and larger.reinforced concrete pipe conforming to AASHI'O I}esign.a:fion M 170M Class <br />ill .3.Plastic pipe conforming to AASHTO Designation M294-. <br />B.All concrete piPe joirits with County road rlgbB-of-way shall be sealed against leakage andfor:in:filtration with rubber gasket in conformance with Section <br />65-1:06 of the California Standard Specifications.or with other methods ~may be permitted.under th-eSpecial Provisions..c.Cast-in-place concrete pipe.vitrified clay pipe.spiral welded steel pipr;or corrugated aluminum array pipe shall not be installed within.the County road. <br />rights-of-way unless specifically so stated in the Speci81 Provisions.and only under the conditions asprovided... <br />D.All structures to be buried within the C01mtyrights-of-way sh~be set at such elevations asto allow minimum cove~""Cofthirty inches (30")to the <br />centerline of the roadways and twelve inches (12")atthe bottoms ofborraw ditches each side of the roadways.The depths Dfstructures shall be established <br />below a fiat pl8?e extending across the rights-of-way.no part of which shall extend above the elevations stated above;manhoies.Iampholes."-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 S:QecialProvisions the gage and surf~treatment of any galvanized corrugated metal pipe that-is to be <br />installed.F.AIl longitudinal utility facilities are to be established {and dimensioned OIl sketches)from surveyed centerline of road right-of-way.not from right-of-way(border)lines_. <br />tEPAIRS OF THE COUNTY RIGHT-OF-WAY, <br />'.A AIl excavations shall be backfilled and compacted immediately after work therein has been completed. <br />B.Trenched shall not be left Dpen farther than 30.0 feet in advance of pipe laying operations,.or 200 feet to the ~ar tb.ereo~unless otherwise permit.n<d by 'the <br />Engineer... <br />C..Unless otherwise permitted 'Wlderthe Special Provisions,.backfill shall be placed and.mechanically compacted inSuch amanner that the relative compaction <br />throughout the en~fill within the County road rigb.t-<rf-way shall copform 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 fui?mess.before compaction.,0.67 foot in the bedding regi.o~one -foot where <br />90%compaction is required,and two-feet 'Where 8{l%comp~on is required.. <br />E.No portion of the excava:tion(s)shall.be compacted by ponding orjetting un1ess amamtenance 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 ofahigh-frequency <br />internal vibrator,the compactor to be a size and type approved.by the Engineer.Points of compaction shall not be greaterthan 18"centers and to the fun <br />depth offue 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 atthe cOnstruction site(s)occupied by materials and/or equipment shall be restored-immediately upon back:filling of <br />the excavation to the original grades and cross sections,.aJ?dto a condition as good as.or better than existing prior to cons1rllction. <br />II.All sUIfacing malerials of mad ways and driveway approaches cut or dama"oed by or as a result of cOIlS1:rtlctiOIl,operanons,shall be replaced within'ONE <br />WEEK fullowing the backfilling of excavatiOD,weather permitting,with compacted layers of surlilcingmateria1s at least as thick as the existing,and no less <br />than two inches (2")of asphalt conercle over six inches (6")of aggregate base,both as specifibd below.'• <br />-.1-.'Asphalt Concrete:Combined mineral aggregate sball COnfolUlto the quality and gradation requirements fur Type "B"uue-half inch(1I2) <br />maximum aggregate,coarse ormedium gradation as specified in Se~on 39 of the Califomia Standard Specifications.The bituminous binder to <br />be mixed with mineral aggregate shall be pmng asphalt having (Grade PO 54-10),unless otherwise directed by the Engineer.Placement of <br />asphalt cone,eto surfacing shall COnfolUlto the applieable provisions ofSectiou 39 of the Califurnia Stmdard Specifications. <br />2.Aggregate Base:Combine.mineral aggregates shall confOIl)1to the quallfy and the grading for three-quarter inch (3/4")maximum size <br />aggregate Class 2 Aggregate Base specified in Seetion25 of the California Stmdard Specifications.1 Befbre acceptance oftepairn to the County road rigbJs-<lf-way,allunsightly and detrimental dirt,dust and/or debris sball be removed and the construction <br />areas left in a neat and presentable condition(s). <br />L Ifnecessary.County road traveled.way and driveway P'lVements shall.be washed with water to rem9ve dirt and dust <br />2.Driveway approaches and field enrrance pavements damaged by equipment or spoll banks shall be repaired as direeted by the Engineer_ <br />J.Upon request bythe County,any settlement,sagging of surface.or cracking of pavement shall be repaired immediately by and at the sale expense of the <br />Permittee for a period of Dlle year following acceptance offue work. <br />ERMITS COUNIER\gener:al provisions\Wmter w~~l'rovisions..doa::