highway specification

7/27/2019 Highway Specification

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PART 2SPECIFICATION

OF CONSTRUCTION MATERIALS

ANDSTANDARD CONSTRUCTION DETAILS


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PART 2SPECIFICATION OF CONSTRUCTION MATERIALS

AND STANDARD CONSTRUCTION DETAILSINDEX

SECTIONS PAGE NUMBER

1. INTRODUCTION 2

2. MATERIALS 4

3. SITEPREPARATIONANDGENERALWORKS 11

4. EARTHWORKS 12

5. DRAINAGE 14

6. KERBS,FOOTWAYSANDPAVEDAREAS 18

7. FLEXIBLECARRIAGEWAYS 20

8. FOOTWAYSANDVEHICLECROSSINGS 37

9. HIGHWAYVERGESANDPLANTING 39

10. STREETLIGHTING 41

11. COMPLETIONOFWORKS 42

12. MISCELLANEOUS 43

13. STANDARDCONSTRUCTIONDETAILS 44

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1. INTRODUCTION

THIS DOCUMENT IS TO BE READ IN CONJUNCTION WITH THE DESIGN GUIDE FOR RESIDENTIALROADS, THE HIGHWAYS AGENCY MANUAL OF CONTRACT DOCUMENTS FOR HIGHWAY WORKSAND THE SOUTH YORKSHIRE LABORATORY SPECIFICATION FOR THE SUPPLY OF MATERIALSFOR USE IN HIGHWAY WORKSINTRODUCTIONThisGeneralSpecificationisissuedfortheguidanceofdevelopers,andformsthegeneralbasisforalternativemethodsofconstructionforHousingEstateRoadsandIndustrialEstateRoadswhichtheHighwayAuthorityisultimatelyrequiredtoadoptashighwaytobemaintainedatpublicexpense.INSPECTIONSThe Highway Authority shall be notified at least 3 days Noticeprior to the commencement of any stage of the works.

If,asaresultoffailuretogiveadequatenoticeofanystageofthe Failure to giveconstructionworkstheEngineerisunabletoinspectthesame,the adequate noticeDeveloperwillberequiredtocarryouttestsathisownexpensetoprovetotheHighwayAuthorityssatisfactionthattheworkscomplywiththeappropriatestandard.Otherwise,oncompletion,theworkmaynotbeconsideredforadoption.

TheHighwayAuthorityrepresentativeshallbegivenaccesstothe Access forworkinprogressandmayvisitfromtimetotime.Suchvisitsdo The Highway notabsolvetheDeveloperfromhisresponsibilityforsupervising Authoritytheworkthatheispayingfor,orfromensuringthatitiscarried representativeoutinaccordancewiththeSpecificationandapproveddrawings.EXISTING SUB-GRADEAllconstructiondetailsshowninthisdocumentarebaseduponan Assumed CBRassumedCBRof2%.IfagreedinwritingwiththeEngineer, Valuesthicknessofsub-baseandorcappinglayermayvaryifasub-gradesurveyindicatesthatthereisanincreaseordecreaseinCBRvalues.

Whenthesub-gradeisfrostsusceptible,aminimumconstruction Frostthicknessof450mmwillberequired. susceptiblesub-gradeDEFINITIONSUnlessotherwisestated,thedefinitionoftermsusedinthis GeneralSpecificationshallbethatintheGlossaryofHighwayEngineeringTermsandBS6100:2.4.1

TheEngineer,forthepurposesofthisSpecification,shallbethe The EngineerrepresentativeofTheHighwayAuthority.

WherereferenceismadeinthisdocumenttotheContractor,this The ContractorshallmeantheDeveloperorPartyenteringintoagreementwiththeHighwayAuthorityinrespectoftheadoptionofthehighway.

BritishStandard-thistermwillbeusedwherereferenceismade BritishtoaBritishStandardsInstitutionSpecificationandtheedition Standardcurrentatthetimeofconstructionistobecompliedwith.(SeeSection2materials)

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ROAD TYPESThesearedetailedintheDesignGuidesforResidentialandIndustrialRoads,andaresummarisedbelow.2. IndustrialEstateRoads

3. MainRoad

Parade4. CollectorStreet

LocalStreet

5. VillageStreet

5B. Square/MewsCourtHomezone

Footpath+PrivateDrive(Notadopted)FootpathModespecificlink

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2. MATERIALSWherever,inrespectofanyBritishStandard(BS),aBSIKitemark BSCertificationschemeisavailable,allmaterialsarerequiredtocomply Accreditationwiththatstandard,orthecontainersofsuchmaterials,shallbemarkedwithaBSICertificationTrademark(theKitemark).ThemarkofconformityofanyotherthirdpartycertificationbodyaccreditationbytheNationalAccreditationCouncilforCertificationBodiesorequivalentshallbeanacceptablealternativetothisrequirement.Atthedateofconstruction,allarticlesandmaterialsshallconformto:- GENERAL

A) theabove

B) TheHighwaysAgencyforHighwayWorksmodifiedorextendedbyanysubstituteoradditionalclausesreferredtointhisdocument

C) TheSouthYorkshireLaboratorySpecificationsfortheSupplyofMaterialsforuseinHighwayWorks

Andthefollowing:-SAMPLES AND TESTINGRepresentativesamplesofallmaterialsproposedtobeusedinthe GeneralworksshallbesubmittedfortheEngineersapprovalnotlessthanthreeweeksbeforetheyaretobeusedintheworks,andshallbeinaccordancewithSouthYorkshireLaboratorySpecificationfortheSupplyofMaterialsforuseinHighwayWorks.Suchapprovalshallbeobtainedbeforeanymaterialsaredeliveredtosite.AnymaterialsnotconformingwiththeSpecificationandrequirementswillbecondemnedinwhichcasetheymustberemovedfromthesite.TheEngineermayrequirematerialtobetestedonaroutine Routinebasisataratewhichwillnormallynotexceed; Testing CarriagewayOnesampleper50mlengthofcarriageway. (Sub base androad baseMaterial)

Onesampleper100mlengthofcarriageway. (SurfacingMaterial)Itmaybenecessarytotakesamplesforeachlayingoperation FootwaysIfanymaterialisbelowthequalityrequired,itwillbecondemnedandmustberemoved.The Developer shall bear the cost of all sampling and testing Costsrequired by the Engineer. ThesecostsarenormallyincludedintheSection38agreementandAdvancePaymentsCodeSection220ofTheHighwaysAct1980.However,theEngineermayrequireextratestsandtheseshallbepaidforbytheDeveloper.

PorouspipesshallcomplywiththerequirementsofSouthYorkshire PorousLaboratorySpecificationNo.13.(Concreteporouspipes). PipesVitrifiedclaypipesshallcomplywithBSEN295andBS65. Vitrified

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Thefittingsshallhaveflexiblemechanicaljoints.Theyshallbe Clay pipesbeddedonmaterialcomplyingwithSouthYorkshireLaboratory SpecificationNo.26andinaccordancewithSimplifiedtablesofExternalLoadsonBuriedPipelines,issuedbyTheTransportResearchlaboratory.

Plasticpipesfittingsandjointsshallbeinaccordancewiththe Plastic pipesrequirementsofBS4660,BSEN1401/1andthewaterindustry and fittingsspecificationWIS4/35/01. ConcretePipesandfittingsshallcomplywiththerequirementsof ConcreteBS5911:Part100andSouthYorkshireLaboratorySpecification Pipes andNo.14. FittingsUnlessotherwiseagreedinwritingwithTheEngineer,allpipes Joints &shallbe:- bedding

Flexiblyjointed.BeddedonmaterialconformingwithSouthYorkshireLaboratorySpecificationNo.26anddesignedinaccordancewithSimplifiedTablesofExternalLoadsonBuriedPipelines,issuedbytheTransportResearchLaboratory. BricksaretobeaClassBEngineeringorConcreteEngineering Bricks forqualitycomplyingtoSouthYorkshireLaboratorySpecification manholes,gulliesNumber16,andaretobelaidinEnglishbond. and Soak-aways etcDRAINAGE IRONWORK DrainageironworkshallcomplyinallrespectswithBSEN124 BSandbeKitemarkedorequivalent(anycertificationbodyaccredited toBSEN45011).Productsshallbemanufacturedbycompanieswhooperateto QualityBSENISO9000SeriesQualitySystemStandards. assuranceDuctileironClassD400(150mmdeep)doubletriangularto ManholeBSEN124with600mmsquareopeningsasmanufacturedby: covers and framesStanton(Inter-AxD400-H)(Orsimilarapproved).MustbeductileironwithcaptivehingetoBSEN124. Gully grates and framesMinimumClassD400 Industrial Estate and TypeAsmanufacturedby: 3 RoadsStantonWatershedD400HR8651(Orsimilarapproved)MinimumClassC250(100mmdeep) All other road typesAsmanufacturedby:StantonHY813(Orsimilarapproved) TobeinaccordancewithBS1247. Step irons for Manholes

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GULLY POTS

Fortypicalgullydetails,SeeSTANDARDCONSTRUCTIONDETAILS GeneralAllgulliesshallbetrappedandprovidedwitharoddingeyeandfixedchainstopper.ShallcomplywiththecurrentBritishBoardofAgrmentRoadsand PlasticBridgesCertificate(BBAPublications).ShallcomplywiththerequirementsofBS5911:Part230 Precast concretePrecastConcretePipes,FittingsandAncillaryProductsandSouthYorkshireLaboratorySpecificationNo.14.Shallcomplywiththerequirementsforroadgullies,asspecified ClayinBS65Specificationsforvitrifiedclaypipes,fittingsandductsorBSEN295,andshallbeinaccordancewithSouthYorkshireLaboratorySpecificationNo.12.ShallbeclaytrappedgullypotscomplyingwithBS.65and/or Footway gullies BSEN295andSouthYorkshireLaboratorySpecificationNo12withgalvanisedbucket.Thegulliesaretobecoveredwithahingedgratingandframe.(SeeSTANDARDCONSTRUCTIONDETAILS). CONCRETEAllconcreteshallbeinaccordancewithBS5328. BSAllconcreteusedshallbemadeofaggregate,cementandwater Constituentandshallcomplywiththeconditionsgivenbelow:- PartsWherestandardmixesarespecified,therelatedstrengthsshallbeas Standardfollows:- mixes

ST4 20.0 N/mm2ST5 25.0 N/mm2Inallphasesoftheworkinvolvingconcrete,theconcretemustbe Placing placedbeforetheinitialsethascommenced.Beforeconcretingworkscommence,trialmixes,usingthe Concreteaggregatesproposedfortheworkshallbemadetoensurethat carriageways,theconcreteissufficientlyworkableandthatnosegregation Bus draw- ins,ofthemixoccursduringeithertransportationorplacing. lay-bys, In-situThecompositionofthesetrialmixesshallbeadjustedtoensure channelling,thatthecharacteristiccompressivestrengthofcubestestedin Manhole slabsbatchesoffourshallbe40Npermm2at28days. Theconcreteshallbeair-entrainedandthetotalquantityofairasapercentageofthevolumeofthemixshallbe5%+1.5%. Concreteforthesepurposesshallbeofsuchproportionsasto Concreteprovideacharacteristiccompressivestrengthof25Npermm2 Manhole(ST5)at28days.WhenrequiredbytheEngineertheContractor foundations shallsatisfyhimthatthearrangementsformixingtheconcreteare benching andadequatetoproduceamaterialoftherightquality,andshall concrete raftssupplybatchesoffourcubesfortestpurposes. Pipebeddingandhaunching. Concrete gradeBeddingandbackingofkerbsandedging. ST4 (20N/mm2)Manholesurrounds. shall be used

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Gullybasesandsurrounds. for theseSteelpedestrianfencingsurround. purposesPipesaddling.Trenchbases.Blindingbasesofexcavations.MORTAROrdinaryPortlandCementshallbeusedunlessotherwisespecified. Cement MortarTobemixedbyvolumeataratio1ofcementto3sand.NaturalsandoncrushednaturalstoneorcombinationofbothasspecifiedinBS1200(Specificationsforbuildingsandsfromnaturalresources).CONCRETE KERBS CHANNEL AND EDGINGAllprecastconcretekerbs,channelsandedgingshallbe Concrete kerbshydraulicallypressedandshallcomplywiththerequirements channel andofSouthYorkshireLaboratorySpecificationNo.11.Special edgingkerbs(Plasmobility)havingdimensionscomplyingwithBS7263,maybeapprovedbyTheEngineer.ROAD PAVEMENTS

Sub-baseshallbeinaccordancewithSouthYorkshireLaboratory Sub-base SpecificationNo.19.Thesourcematerialshallbeapprovedby TheEngineer.DenseBase(Roadbase)toBS4987andSouthYorkshire BaseLaboratorySpecificationNo.30. (Roadbase)

Surfacing DenseBinderCoursecomplyingwithBS4987and Binder courseSouthYorkshireLaboratorySpecificationNo.31.OR

RolledAsphaltcomplyingwithBS594andSouthYorkshireLaboratorySpecificationNo.7.

StoneMasticAsphaltcomplyingwithBS4987andto SurfaceSouthYorkshireLaboratorySpecificationNo.41 Course

ORRolledAsphalttocomplyingwithBS594andSouthYorkshireLaboratorySpecificationNo.29

OR 10mmsizeCloseGradedSurfaceCoursecomplyingwithBS4987andSouthYorkshireLaboratorySpecificationNo.33

OR6mmsizedenseSurfaceCoursetoBS4987andSouthYorkshireLaboratorySpecificationNo.34

ORInterlockingBlockPavingcomplyingwithBS6717Precastconcretepavingblocks NotesMaterialscontaininglimestoneorblastfurnaceslagaggregate Blast furnaceshallNOTbepermittedintheSurfaceCourse. slag

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Whenthesurfacingcourseislaidinstagesthesame Stage layingaggregatemustbeusedforeachstage.

BITUMINOUS BINDERSAllbindersinbituminousmaterialsmustbestraight-run.Addition offluxingagentsisnotpermittedwithoutwrittenpermissionfrom TheEngineer Jointsealingcompoundshallconsistofeitherhotorcoldpoured Joint sealingmaterialasdetailedpage28-JOINTSINFLEXIBLESURFACING Compound

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FOOTWAY PAVEMENTS

ThematerialusedshallconsistofacompactedlayerofType1 Sub Base forgranularsub-basematerialandshallcomplywiththe footways andrequirementsoftheSouthYorkshireLaboratorySpecificationNo19 margins Surfacing for footways6mmsizeSurfacingCoursetoBS4987andcomplyingwith AsphaltSouthYorkshireLaboratorySpecificationNo.34With

20mmsizeBinderCoursetoBS4987andcomplyingwith SouthYorkshireLaboratorySpecificationNo.31

ORPrecastconcreteflagsshallcomplywiththerequirementsof PCCFlagsSouthYorkshireLaboratorySpecificationNo.11,bebeddedon sharpsandandcementataratioof6:1onthepreparedsub-baseORInterlockingBlockPaving(PencilEdge) Block Paving ORNaturalstoneflags Natural

Stone flags

Thesurfacingfornon-vehicularhardenedmarginsshall Surfacing forbe60mmthickconcreteblockpavingbeddedon35mm non-vehicularcompactedthicknessofsharpsand hardenedmargins

SeeSTANDARDCONSTRUCTIONDETAILS Cycle trackconstructionROAD HUMPSSeeSTANDARDCONSTRUCTIONDETAILS Construction

PositionofroadhumpstobeagreedwithHighwayAuthorityatplanningstage. LocationsGeometricaldesignshallbeinaccordancewiththelatest RegulationsversionofTheHighways(RoadHumps)Regulations.

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PAINT FOR METALWORKShallbecarriedoutinaccordancewiththemethodsrecommended PaintworkinBS6150,usingmaterialscomplyingwithClause164andprimedattheworksinaccordancewithBS5493Paintworkspecificationforhandrailsandsafetybarrier1stcoat-Galvanising-Hotdipgalvanisingminimumthicknessofgalvanising70micronB.S.7292ndcoatandpreparation"T"wash(orsimilar)3rdcoat-Primer-Zincphosphatemetalprimer4thcoat-Undercoat1-Alkydundercoat(Grey)5thcoat-Undercoat2-Alkydundercoat(White)6thcoat-TopCoat-Permaglaxe12D45-Green(orsimilarapproved)NB1st2ndand3rdcoatstobecarriedoutinfactory

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3. SITE PREPARATION AND GENERAL WORKS

Theinvestigationshouldgatheralldataneededforassessing: Ground Investigation

A Generalsuitabilityofthesiteandneighbourhoodforthe

proposeddevelopmentworks

B Physicalcharacteristicsofthegrounde.g.presenceofIn-groundobstacles,services,buriedconduits,sumpssoftspots,cellarsetc.

C Physicalcharacteristicsofcontaminatedmatricese.g.mineralogy,moisturecontent,permeability,chemicalcomposition,particlesizedistribution

D Geotechnicalcharacteristicse.g.strength,compressibility,stabilityofslopes,existingstructures,potentialforsubsidenceetc.

E Theneedfordesignrequirementsofanyfoundations,earthworks,temporaryworksandspecialistgeotechnical

processesassociatedwiththedevelopmentstrategy,takingintoaccounttheeffectofanyprevioususesofthesite.

F Anyfactorsarisingfromthesoilorgroundwaterconditionsthatmightconstraintheconstructionorimplementationofdevelopmentworksincludingtemporaryworks,excavation,traffickabilityanddrainage.

G Thequantity,qualityandeaseofextractionofconstructionmaterials

(e.g.concretefoundations)suitableforinclusionintheworks

H Changesinthestability,drainageorothergeotechnicalaspects

ofthesiteandthesurroundinggroundandbuildingswhich mightbeinitiatedbythedevelopmentworks.

Inaddition,itmaybenecessarytoassessthestabilityofexistingstructures,ortoevaluatepotentialfailureorinstability.AllinvestigationworksshallbecarriedoutinaccordancewithBS5930.SpecialistgeotechnicalprocessesshallbespecifiedanddesignedinaccordancewithappropriateindustrystandardsorrelevantCodeofPractice.Thelinesandlevelsofthecarriageways,footways,verges,drainsandallother Setting outworksshallbeproperlysetoutbeforecommencementoftheWorks.TheContractorshallremovebuildingstoaminimumof1.5mbelowformation Site clearancelevel)andotherobstructions,grubupandremovetrees,hedges,bushes,shrubsandclearthesiteoftheworkstothesatisfactionofTheEngineer.

Cellarstobeexcavatedandfilledtospecification.

Drawingsshowingsiteclearancedetailstogetherwithappropriate DrawingsschedulesandappendicesshallbesubmittedtoTheEngineerpriortocommencementoftheworks

Theprovisionofacomprehensivesystemofsub-soildrainagemay Sub-Soilberequiredwhereproposedroadsareincuttingorwherethereis Drainageevidencethatthegenerallevelofthewatertableiswithin600mmofthecarriagewayformationlevel

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4. EARTHWORKS

AllEarthworksaretocarriedoutinaccordancewiththe GenerallatestrequirementsofSeries600ofTheHighwaysAgencySpecificationForHighwayWorks:-ThelatestrequirementsofSouthYorkshireLaboratorySpecificationForTheSupplyofMaterialsForUseinHighwayWorks:-Andthefollowing:-Drawingsshowingearthworksdetailstogetherwith DrawingsappropriateschedulesandappendicesshallbesubmittedtoTheEngineerpriortocommencementoftheworks.Alltopsoilshallberemovedfromthearearequiredfor Topsoilhighwayconstruction.

Excavationshallbetocorrectlines,levelsandcontours. Line & levelWhererockismetinexcavationitshallbecutouttothe Excavation linesandlevelsshownontheapproveddrawings,oras in RockdirectedbyTheEngineer.SurfaceirregularitiespresentintheformationaftercompletionoftherockexcavationshallbecorrectedwithalayerofmassconcretegradeST4laidandcompactedtotherequiredlevels.TheincorporationofanyoftheexcavatedrockintheworksshallbelefttothediscretionofTheEngineer,dependinguponthenatureandsuitability/gradingoftherockforthispurpose.Allsub-gradesaretobeproofrolledandcheckedforsoftspots. Proof rolling/TheseshallbecutoutasdirectedbyTheEngineerandbackfilled Soft spots withGRANULARFILL(seepage15)Unlessspecificallyexcepted,allexcavatedorfilledsurfaces Compaction withintheareaofthehighwayshallbethoroughlycompacted inaccordancewithclause612oftheSpecificationForHighwayWorks.TheContractorshallcarryoutanyextrarollingandcompactionnecessitatedby:-

A Thesoftorartificialnatureofthesite

B Theloosenatureofreplacedmaterialindrain, sewer,statutoryundertakers,orothertrenches.C Anysubsidencethatmayoccur

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AtthediscretionofTheEngineer,onsoftground,75mmto Soft ground125mmsinglesizestonemaybelaidoverthesub-grade,untilanadequatefoundationisachieved.EngineeringfabricsmayalsobeusedinthesecircumstancesasdirectedbyTheEngineer.Nomaterialshallbeusedforfillingundercarriageways FillingandfootwayswithoutthepriorapprovalofTheEngineer.GranularFillshallcomplywithclass6F1/6F2 Granular FillCappingshallcomplywithclass6F1/6F2 Capping layerShallbeinaccordancewithclause617oftheSpecification TraffickingforHighwayWorksandthefollowing; of sub-gradeTraffickingofthesub-gradeshouldbeavoided. Wherethecontractorproposestousethesub-gradefor constructionplant,heshall:StopexcavationshortofformationlevelOR

Provideadequateprotectiontotheformationbytheuseofacappinglayerortype1sub-base.

IftheContractordamagesthesub-grade,theaffectedareas Damage toshallbecutouttoadepthasdirectedbyTheEngineerand sub-gradereinstatedwithapprovedcappingmaterialproperlycompactedtohissatisfactionbeforeanysubsequentpavementlayersareplaced.

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5. DRAINAGEGENERALThis document is concerned only with highway drainage.Sewers are the responsibility of the Sewerage Undertaker and anyconcerns or queries regarding sewers are to be directed to them. AllDrainageworksaretocarriedoutinaccordancewiththelatestrequirementsofSeries500ofTheSpecificationForHighwayWorks:-ThelatestrequirementsofSouthYorkshireLaboratorySpecificationForTheSupplyofMaterialsForUseinHighwayWorks:-Andthefollowing:-Drawingsshowingproposeddrainagedetailstogetherwith DrawingsappropriateschedulesandappendicesshallbesubmittedtoTheEngineerpriortocommencementoftheworks.

ExcavationExcavationinanymaterialshallbeinopentrenchesto (General) correctlinesandlevels,asshownontheapproveddrawings ortosuchotherlinesandlevelsasdirectedbyTheEngineer.ExcavationstakenouttoagreaterdepththannecessaryshallbefilledwithconcretegradeST4ortheappropriatebeddingmaterial,toaleveldirectedbyTheEngineer.TrenchingshallbeofsufficientwidthtoenablethepipestobeproperlylaidandjointedbutinnocasegreaterthanthewidthspecifiedinSimplifiedtablesofexternalloadsonburiedpipelinesissuedbyTransportResearchLaboratory.Specialcareshallbetakentoprovideasolidandevenbedforthebarrelsofthepipes.Pits,trenchesandotherexcavationsshallbeadequately (Finish)supported,shallnotbebatteredandshallbewideenoughtoenablethepipesandconcretetobelaidaccurately,andproperrefillingandrammingtobecarriedout.Wheresolidrockissetintrenches,itshallbecutouttoadepth (Rock)of150mmbelowtheintendedleveloftheundersideofthepipesorthediameterofthepipewhicheveristhegreaterandreplacedwithpipebeddingmaterial(asspecifiedonpage8;JOINTSANDBEDDING)toprovideafirmbedforthepipes.AnyoverdigshallbebackfilledwithconcretegradeST4,topermitauniformdepthofbeddingmaterial.

Ifanystreamsorwaterways,landdrainsorsewersareintersected Temporary/byanypartoftheWorks,theyshallbeconductedpastthesame Permanentduringconstructionbytroughsorothertemporarymeans,andas Diversions ofsoonaspossible,restoredtoaconditionsuitableforthepurpose. Ground WaterLanddrainsshallbeprovidedunderthenewroadsifthenatureofthesub-soilappearstowarranttheiruse.(seepage5;POROUSPIPES)Trenchesandallotherexcavationsshallbekeptfreefromwater Prevention ofuntilanyconcreteorotherworksthereinaresufficientlysetand Standing WatertheContractorshallconstructanysumpsortemporarydrainsthataredeemednecessary.TheContractorshallmakegoodanydamagecausedbyprolongedand/orexcessivepumpingandshalltakeallprecautionsnecessaryforthesafetyofadjoiningstructuresandbuildingsduringthetimethatthetrenchesareopen.

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UnlessotherwisedirectedbyTheEngineer,pipesforcarrying Laying andsurfacewatershallhaveflexiblejointsandbelaidinaccordance Jointing ofwithmanufacturersinstructions.Allpipesshallbelaidtrueto pipeslineandlevel,witheachpipebeingseparatelyaligned.Pipebeddingmaterialshallbeasdescribedonpage8-JOINTSANDBEDDINGWheredirectedbyTheEngineer,existinghighwaydrains Carrier Drainsshallbeproperlyextendedtoreceiveadditionalflowsfromnewgulliesorchannels.Detailsofexpectedsurfacewaterrunoffanddrainagecalculationswillberequestedpriortowrittenpermissionbeinggranted.Anygullyorbranchconnectionsshallbemadeduringtheconstructionofthemaindrainandarecordoftheirpositionskeptforfutureuseorreference.Wherepipeconnectionsaremadetoabrickdrain,concreteculvert,stonebuiltorlinedchannel,thepipesshallbewellandtightlybuiltintotheconcrete,brickormasonrywork,andbesoplacedastodischargeinthedirectionofflowofthemaindrainorchannel,andwiththeendofthepipecuttothenecessaryangle.Wheretheconnectionsarebetweenpipeddrains,specialconnectingpipesshallbesupplied,trulylaidandproperlyjointed.Wherepipesarebeneaththecarriagewayorfootway,ata Shallowdepthlessthan1.2metrescoverfromthefinishedsurfacelevel Pipework(orelsewhereifTheEngineerconsidersthatthenatureofthegrounddemandsit),theyaretobebeddedonandsurroundedwith150mmofconcretegradeST4.Incarryingoutthiswork,theContractorshalltakecaretopacktheconcreteunderandaroundthepipestoensureevenbeddingandsolidityintheconcrete.Theconcreteshallnotbethrowndirectlyontothepipes.Theuppersurfaceoftheconcreteshallbestruckoffwithawoodenscreedortemplateandneatlyfinishedoff.Thesurroundingofpipeswithconcreteortherefillingoftrenches,shallnotproceeduntilthedrainshavebeeninspectedandapprovedbyTheEngineer.Theflexiblejointshallbemaintainedbyformingabreakintheconcretebedandsurroundbytheuseofflexcell,fibreboardorotherapprovedmaterials.AllpipelinesshallbedesignedinaccordancewithBS5911andSimplifiedtablesofexternalloadsonburiedpipelinesissuedbyTransportResearchLaboratory.Junctionpipeswhicharelaidbutarenotimmediatelyconnected Gullytogullies,shallbefittedwithtemporarystoppersorseals, connectionsandthepositionofallsuchjunctionsshallbeclearlydefinedbymeansofstakesortrailingwiresproperlymarkedorlabelled.

Allbricksshallbeasdescribedonpage5.Brickworkistobebuiltin Brickwork EnglishBond,onmortar(inaccordancewiththedetailsshownonpage for manholes(7),finishedplumbandtrue,andflatpointedontheexposedface gullies andastheworkproceeds.Eachbrickistobewellbeddedandjointed. soak-aways etc.Nohalfbricksshallbeusedexceptasclosures.Nobrickworkshallbebuiltwhentheoutsidetemperatureprecludestheproperplacingofconcrete.ManholesandInspectionChambersshallbeconstructedin Manholes andthepositionsshownontheapproveddrainagedrawings,or inspection

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asdirectedbyTheEngineer.Thedesignsanddetailsshallbe chambersinaccordancewiththeStandardDetailsshowninTheHighwaysAgencyConstructionDetails,SeriesF-Drainage.Seebelowregardingsettingstreetfurnituretofinishedlevels. GulliesUnlessotherwisedirectedbyTheEngineer,eachgullyshall (Drained area)drainamaximumof200sq.m. .Individualgulliesshallbesitedtoavoidstandingwateronthe (Siting)carriagewayandtopreventflowsthatmightcreatedanger,damageorgiverisetocomplaints.

Allgullyconnectionsaretobeproved. (ProvingConnections)Gullypotsshallbesetonafoundationofandsurroundedby (Setting gully150mmofconcretegradeST4.Aftertheconcretehassetand pots)hardened,backfillingshallbecarriedoutandthoroughlycompacted.Coversandframes,shallbesettocorrectlevelsona Setting coversminimumofoneandamaximumoffourcoursesofbrickwork andframes(SeeBRICKSFORMANHOLES,GULLIES&SOAKAWAYSETCONPAGE5)ontopofdrainageunits.Forgullies,thetopcourseshallbelaidasheaders,asbrickonedge.(REFERTOSTANDARDCONSTRUCTIONDRAWINGSFORDETAILS)

Toallowforadequatecompactionofpavementasphaltlayers, Setting streetstreetfurnitureshouldnotbeplaceduntilthebasecourselayeris furniture toiscomplete.Anychambersorgulliesshouldbecoveredtoprevent finished levelsingressofextraneousmatter.Streetfurnitureshouldthenbesettofinishedlevelsbeforethe wearingcourseislaid.WhereTheEngineerisinanydoubtastotheefficiencyofthe Testingdrainageworks,hemayrequiretheContractortoprovidethe Drainsapparatus,labourandtoolsformakingtestsbeforethetrenchesarebackfilled,orconcretesurround/haunchingisplacedinposition.AnydefectsdiscoveredintestingorotherwiseshallbemadegoodasdirectedbyTheEngineerandnopipesorfittingsofanydescriptionshallbecoveredupuntilhehasgivenhisapprovaltothesame.OnlyafterthedrainshavebeenapprovedbyTheEngineershall Backfilling trenchesbebackfilled.The first 300mm of backfill above thecrown of the pipeshallbefillmaterialasspecifiedinSimplifiedtablesofexternalloadsonburiedpipelinesissuedbyTransportResearchEstablishment.Theapprovedmaterialshallbecompactedinlayers,toadensityatleastequaltothatoftheundisturbedgroundadjacenttothetrench.Duringthefillingprocess,caremustbetakentoavoidpipesbeingbroken,displacedormoved.Whenconcreteisnotusedforsurroundingthedrains,thefirstlayeroffillingshallbecarefullyplacedintopositionbyhandandrammedsothatnocavitiesareleftunderthepipes.The remainder of the trenchistobebackfilledtoformation

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levelorsubformationlevelwherecappingisrequired,withType2sub-basematerialtoSouthYorkshireLaboratorySpecificationNo20(orothermaterialapprovedinwritingbyTheEngineer,whichshallcontainaminimum10%ofmaterialretainedona37.5mmBSsieve).Timberwhichhasbeenemployedforshoringandsupporting, Shoring andshallnotberemoveduntilthecompactedfillhasreachedsuch support timberalevelastorendersupportunnecessary.Itshallthenberemovedasfillingproceeds,buttheymaybeleftintrenchesorotherexcavations,asdirectedbyTheEngineer.Anydamagearisingfromthecollapseoftrenchesmustbemadegood.Nomaterialshallbeusedforfillingunderthecarriageways andfootwayswithoutpriorapprovalofTheEngineer.

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6. KERBS, FOOTWAYS AND PAVED AREAS

Allworksforkerbs,footwaysandpavedareasaretocarried GENERALoutinaccordancewiththelatestrequirementsofSeries1100ofTheSpecificationForHighwayWorks:-ThelatestrequirementsofSouthYorkshireLaboratorySpecificationForTheSupplyofMaterialsForUseinHighwayWorks:-Andthefollowing:-Drawingsshowingdetailsofproposedkerbs,footwaysand DrawingspavedareasshallbesubmittedtoTheEngineerpriortocommencementoftheworks.Concretekerbsaretobelaidtocorrectlineandlevelona Laying Kerbspreformedbedofconcretekerbrace,150mmminimumthicknessunlessotherwisedirectedbyTheEngineer.Theconcreteistobecarriedupthebackofthekerbstowithin100mmofthetopfaceforawidthof150mmtoformahaunch.Jointsbetweenkerbsshouldnotexceed2mminwidth. JointsWherejointsarewiderthan2mm,orwherekerbshavebeencut,jointsaretobefilledwithcementmortar(asdescribedonpage7)andthefaceofthejointpointed.Forallcurvesupto12metreradius,circularkerbsaretobeused Radiiandlaidtruetoradius.Curvesbetween12metresand20metresradius,aretobeformedusing450mmstraights.Curvesinexcessof20mradiusaretobeformedusingfulllengthstraightkerbs.KerbfaceshallbeasspecifiedinSTANDARDCONSTRUCTION Kerb FaceDETAILS,GENERALREQUIREMENTSFORKERBING&CHANNELLING.Wherespecialkerbsareused,thekerbfaceshallbeasdirectedbytheEngineer.CHANNEL BLOCKS

ChannelBlocks150mmx150mm(125mm)aretobeusedwhenchannelgradientsare;

A. between1.25%(1in80)and0.67%(1in150)

B. orgreaterthan10%(1:10)(topreventscour)Combineddrainageandchannelunitsaretobeusedwhenchannelgradientsare;lessthan0.67%(1in150)

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Channelblocksshallabutthefrontfaceofkerbs,shallbelaid Layingtocorrectlineandlevelona150mmthickbedofconcrete,andshallbeproperlybondedtotheconcreteusedinthekerbfoundations.(SEESTANDARDCONSTRUCTIONDETAILS,GENERALREQUIREMENTSFORKERBING&CHANNELLING)Wherethekerbradiusexceeds12metres,channelblocksshall Radiibe450mminlength,butwheretheradiusislessthan12metrestheyshallbe300mminlength.Jointsbetweenblocksarenottoexceed2mminwidthandareto Jointsbeproperlygroutedwithcementmortar(forspecificationseepage7).COMBINED KERBING AND DRAINAGE UNITSCombinedkerbinganddrainageunitsaretobelaidinaccordancewithmanufacturersinstructions.DAMAGE TO KERBS etcShouldanydamagebedonetothefinishedkerbs,edging,channel Damageblocksorcombineddrainageunits,orshouldanymovementoftheblockstakeplaceduringtheexecutionoftheworksorduringthemaintenanceperiod,theContractorshalltakeoutandmakegoodthelengthssoaffected,includingallassociatedworks.Newconcretebedandhaunchistobeprovidedforkerbing,edging,channelblocksandcombinedkerbinganddrainageunits

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7. FLEXIBLE CARRIAGEWAYSAllroadpavementsaretobebuiltinaccordancewiththelatest GENERALrequirementsofthefollowingSeriesofTheSpecificationForHighwayWorks:-

700 :RoadPavementsGeneral800 :Roadpavements-Unbound,HydraulicallyBoundandothermaterials900 :Roadpavements-AsphaltBoundMaterials1100:KerbsFootwaysandPavedAreas,Clause1107ThelatestrequirementsofSouthYorkshireLaboratorySpecificationForTheSupplyofMaterialsForUseInHighwayWorks.

andthefollowing:-Drawingsshowingdetailsofproposedroadpavementworksshall DrawingsbesubmittedtoTheEngineerpriortocommencementoftheworksBITUMINOUSHotbituminousmaterialsshallbelaidandcompactedinaccordance BritishwiththerequirementsandrecommendationsforlayinginBS4987: Standard forPart2orBS594:Part2,asappropriate.WherethereisnoBritish AsphaltStandardfortheparticularmaterial,itshallbelaidinaccordance MaterialswiththerequirementsandrecommendationsofBS594:Part2,subjectalsototherequirementsofClause901SubClauses8to31ofTheSpecificationForHighwayWorks,andSouthYorkshireLaboratorySpecificationForTheSupplyofMaterialsForUseInHighwayWorks.Allmaterialsshallbeplacedandspreadevenly. SpreadingAllmaterialshallbespreadusingapavingmachineoraspreaderboxoperatedwithamechanismthatlevelsoffthematerialtoanevendepth.IncaseswhereTheEngineerconsidersthattheextentoftheworkdoesnotwarranttheuseofmechanicalequipment,hemayallowhandspreading.Insuchcases,everyprecautionshouldbetakentominimisesegregationandtoavoidcontaminationofthematerial.TheContractorshall,inhischoiceofpermittedmaterialsfor Choice ofsub-bases,haveregardtothenatureofthosematerialsandofthe permittedsub-gradeoranyothercappingandneedtoprotectthemfrom materialsdeteriorationduetotheingressofwater,theadverseeffectsof for sub-baseweatherandtheuseofconstructionplant.Thecontractorshallprogrammethelayingandcompactionofthesub-baseandthesubsequentpavementcoursesandtakesuchstepsasmaybeconsiderednecessary,toaffordprotectiontothesub-baseandsubgrade.

CompactionshallcomplywithB.S.4987-2:Clause7. Compaction(Pleaserefertotablesfordelivery&rollingtemperatures of asphaltextractedfromBS4987onpages28&29) materials

Asphaltmaterialsshallbelaidandcompactedinlayerswhichenablethespecifiedthickness,surfacelevel,regularityrequirementsandcompactiontobeachieved. CompactionshallbesubstantiallycompletedbeforethetemperaturefallsbelowtheminimumrollingtemperaturesstatedBS4987:Part2orBS594:Part2.

Rollingshallcontinueuntilallrollermarkshavebeen

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removedfromthesurface.Asphaltmaterialsshouldnormallyberolledinalongitudinaldirection,withthedrivenrollsnearestthepaver.Therollershallfirstcompactmaterialadjacenttojointsandthenworkfromthelowertotheuppersideofthelayer,overlappingonsuccessivepassesbyatleasthalfthewidthoftherearrollor,inthecaseofapneumatictyredroller,atleastthenominalwidthofonetyre.Therollingpatternshouldbesuchastoensurethatcompactionisasuniformaspossibleacrosstheroadwidth.Inordertoachievethis,atleasthalfoftherollerpassesshouldbealongtheedgeofthelayer.Rollersshallnotbepermittedtostandonwarmcompacted Stationarymaterials Rollers

Therecommendedrollerforallcarriagewayworksshallbe RecommendedBM130orTV130orsimilarapproved. rollers

Regulating

Regulatingcourses,thatmayconsistofoneormorelayersof (Tolerences) asphaltmaterial,shallhavetheirfinishedsurfaceslaidtoachievetheappropriatetolerancesforhorizontalalignments,surfacelevelsandsurfaceregularity,forpavementlayers.UnlessotherwiseadvisedinwritingbytheEngineer,base (Materials)(roadbase)orbindercoursemacadamcanbeusedforregulatingimmediatelybelowthesurfacecourse.Asphaltmaterialsusedshallmeettherequirementsoftheappropriatematerialasspecified.Wherethetotaldepthofregulatingcourseexceeds150mmthen (Compactedthecourseshallbelaidsothateachregulatinglayerhasa thicknesses)compactedthicknessofbetween75mmand150mm.Whereanypavementlayerdoesnotcomplywiththespecification Rectificationforregularity,surfacetolerance,thickness,texturedepth,materialpropertiesorcompaction,thefullextentoftheareathatdoesnotcomplywiththespecificationshallbemadegoodandthesurfaceofthepavementcourseshallberectifiedinthemannerdescribedinlaterparagraphsforeachsectionseparately.

Reclaimedasphaltmaterialsmaybeusedinproductionof Reclaimedasphaltbase(roadbase),bindercourseandsurfacecourse. asphaltAdviceonthetypesofreclaimedasphaltmaterialspermitted materials canbeobtainedfromTheEngineer .Shouldanyasphaltmaterialbecomecontaminated,The CleanlinessContractorshallmakeitgoodbycleaningitbyjetwashing. of laidIfthisprovesimpractical,thefulldepthofthetoplayeras bituminouslaidshallberemovedandbereplacedwithfreshmaterial layerslaidandcompactedinaccordancewiththeSpecification.

ReinstatementofopeningsshallcomplywiththeSpecification ReinstatementFortheReinstatementofOpeningsinHighwaysissuedbythe of paved areasSouthYorkshireHighwayAuthoritiesandUtilitiesCommittee.Immediatelybeforeasphaltlayersarereinstated,theedgesoftheexistingmaterialshallbecleanedofallloosematerialandbecoatedwithanappropriatehotbinder,orequivalenttreatment.

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SUB-BASE

Allroadpavements(unboundmaterials)aretobebuiltin GENERALaccordancewiththelatestrequirementsofSeries800ofTheSpecificationForHighwayWorks.

ThelatestrequirementsofSouthYorkshireLaboratorySpecificationForTheSupplyofMaterialsForUseInHighwayWorks.andthefollowing:-Thedeliveryofthematerialshallbeco-ordinatedwiththe Deliverytherateoflayingtoavoidinterruptiontothelayingprocess.Materialupto225mmcompactedthicknessshallbespreadinone Compactionlayersothataftercompactionthetotalthicknessisasspecified.Materialofcompactedthicknessgreaterthan225mmshallbelaidintwoormorelayersandtheminimumcompactedthicknessofanysuchlayershallbe110mm.Wherelayersofunboundmaterialareofunequalthicknessthelowestlayershallbethethickestlayer.Thesub-basematerial,atappropriatemoisturecontent,shall becompactedtotherequirementssetoutinTheSpecificationForHighwayWorks,table8/1.Tolerancesare+10mm30mm.INDUSTRIAL ESTATES Materialsshallbecompactedwithvibratingrollerswithoutdryingoutorsegregationsothatwhentestedtheyachieve95%ofthedensitywhencompactedinaccordancewithBS 1377 Part 14.Thisshallbemeasuredin-situusingacalibratednucleardensitymeteratarateof1testsper50linearmetresofcarriageway.Priortolayingthebituminousmaterialthesurfaceofthesub-baseshallnothavearutexceeding10mmmeasuredusinga3mstraightedge.Thesurfaceofanylayerofmaterialshalloncompletionofcompactionandimmediatelybeforeoverlayingbewellclosed,freefrommovementundercompactionplantandfromridges,cracks,loosematerial,potholes,rutsorotherdefects.Allloose,segregatedorotherwisedefectiveareasshallberemovedtothefullthicknessofthelayer,andnewmateriallaidandcompacted.Thetop110mmshallbescarified,reshapedwithmaterialaddedor Rectificationremovedasnecessary,andre-compacted.Theareatreatedshallbe (Refer tonotlessthan20mlongand2mwide. General section on page 22)BASE (ROADBASE)Allroadpavements(asphaltboundmaterials)aretobe GeneralbuiltinaccordancewiththelatestrequirementsofSeries900ofTheSpecificationForHighwayWorks.ThelatestrequirementsofSouthYorkshireLaboratorySpecificationForTheSupplyofMaterialsForUseInHighwayWorks.andthefollowing:-Base(Roadbase)materialshallbespreadoverthesub-baseand Compaction

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rolledsoastogivethecompactedthicknessrequiredbyclause901ofTheSpecificationForHighwayWorks,andBS4987-2Table1.Wheremorethanonelayerofmaterialisrequiredeachlayershallbethoroughlycompactedtothecorrectlevelsandprofilebeforethematerialforasubsequentlayerisspread.Withcoatedmacadamorasphaltbases(roadbase),thefulldepth Rectificationofthetoplayeraslaidshallberemovedandreplacedwithfresh (Refer tomateriallaidandcompactedinaccordancewiththeSpecification. General sectionAnyareasotreatedshallbeatleast5mlongandthefullwidthof onpage 22)thepavinglaidinoneoperation.Alternativelyforlowareasinasphaltbase(roadbase)tobeoverlaidwithbindercourse,theContractormaymakeupthelevelwithadditionalbindercoursematerial.SURFACINGTheconsolidatedthicknessoftherespectivelayersofcoated Thicknessmaterialsforthesurfacingofcarriageways,aspreviously of Layersspecified,shallbeasindicatedintheStandardConstructionDetails.

Thespreadingandinitialcompactionofsurfacingmaterial Spreading andshallbecarriedoutbyanAsphaltFinisherunlessotherwise compaction ofagreedinwritingwithTheEngineer. CoatedLayingshallcomplywithClause6.3ofBS4987:Part2. MaterialsFinalcompactionshallbecompletedasdescribedbelow, MachineshallsatisfytherequirementsassetoutinSection7of LayingBS4987:Part2andshallconformtothelevelsandcross-sectionsspecified.

Anyresultsfallingbelow93PRDwillbedeemedtohavefailed. Minimum PRD

Thecoatedmaterial,shallbespreadbymeans Hand Layingofheatedtoolstothecorrectthickness,shouldsatisfytherequirementsassetoutinClause6.4ofBS4987:Part2.FinalcompactionshallsatisfytherequirementssetoutinSection7ofBS4987:Part2andshallconformtothelevelsandcross-sectionsspecified.Narrowstripsremainingalongsidemachinework,iflaidbyhand,shallberolledatthesametimeasthemachinelaidwork,withallowancebeingmadeforextrasurchargetoandcompactionofthehandlaidmaterial.Themethodoflayingshallensurethatairvoidsof:- Air VoidsCompactedCloseGradedSurfaceCoursematerials

And

DenseBindercourseandBase(Roadbase)materials

Shallbeintherangeof2%to8%.Notmorethan1in10resultswillbepermittedabove8%andnoresultisallowedover10%.

CompactedHotRolledAsphaltmaterial Shallbeintherangeof2%to6%. Notmorethan1in10resultswillbepermittedabove6%

andnoresultisallowedover8%.

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Materialtippedfromdeliverylorriesshallbeproperly Tipping fromturnedandspreadtoensurethatthematerialatthebottom lorriesoftheheapasitfallsfromthelorry,isnotleftundisturbed.Duringthewholeoftheoperation,everyprecautionshallbe Segregationtakentoavoidsegregationandtopreventthematerial andbecomingcontaminatedwithdustorotherforeignmatter Contaminationbytheprovisionofsheeting. Aftercompaction,thethicknessofthesurfacingshall Compactedmeasurenotlessthanthatspecified.TheContractorshall thicknessesensurethatthespecifiedthicknessislaidoverthewholearea,and,whererequiredbytheEngineer,heshallopenoutsufficientareasofsurfacing,eachareatomeasurenotlessthan300mmsquareordrillcorestoenableactualthicknessestobeascertainedbydirectmeasurement.Intwocoursework,thethicknessofeachcourseshallmeasurenotlessthanthespecifiedminimum.

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Surfacecoursesandbindercoursesshallhavethefulldepth Rectificationofthecourseremoved,andreplacedwithfreshmateriallaid (Refer toandcompactedinaccordancewiththeSpecification. General sectionThearearectifiedshallbethefullwidthofthepavinglaidin on page 20oneoperation,andatleast5mlongifbindercourse,or15mlongifsurfacecourse.

Thesurfaceofthebindercourseshallbethoroughlycleanedof Preparationdirt,mudandallotherforeignmatterbypowerwashingprior oftothelayingofthesurfacingcourse. Binder courseUnlesstheEngineerrulesotherwise,atackcoatofClassK1-40 Tack coatbitumenemulsionshallbeappliedtothebindercourseattherateof0.35to0.5l/m2andallowedtobreak(turnfrombrowntoblack)unlessappliedbyintegralspraybaronthepaver,beforelayingthesurfacecourse.Theemulsionshallnotbeallowedtoaccumulateinhollowsbutshallbedispersedbybrushing.TheemulsionshallcomplywithBS434:Part1.

Notrafficshallbeallowedonthecarriagewayduringthe periodbetweentheapplicationofthetackcoatandthelayingofthewearingcourse.

Deliveryandrollingtemperaturesareshownonpages26and27.

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DELIVERYANDROLLINGTEMPERATUREAttentionisdrawntothedeliveryandrollingtemperaturesgiveninBS4987Part2andBS594whichshouldbeobserved.BS 4987 Part 2Recommendeddeliveryandrollingtemperaturesforcoatedmacadamsotherthandense,heavydutyandhighmodulusbindercourseandbase(roadbase)macadams.__________________________________________________________________Typeofmixture Minimumtemp. Minimumtemp.includingbinder ofmixturein immediatelypriortypeandgrade lorrywithin torollingoC 30min.after arrivalonsite oC__________________________________________________________________BitumenDense,closegraded, 290pen 100 80mediumgradedsurface 190pen* 110 85coursesandfinegraded__________________________________________________________________Denseandclosegradedsurfacecourse 125pen 120 95__________________________________________________________________Opengradedand 290pen 85 65singlecourse 190pen 95 75__________________________________________________________________Forsteelslagmacadam,temperatures10oClowerthanthoserecommendedmaybeused__________________________________________________________________Minimumrollingtemperaturesfordense,heavydutyandhighmodulusbinderCourseandbase(roadbase)macadams.__________________________________________________________________Bindertypeandgrade minimumrollingtemperatureoC__________________________________________________________________190pen 60125pen 7550pen 10535pen 110__________________________________________________________________.BS 594________________________________________________________Minimumrollingtemperature________________________________________________________BinderType Grade Minimumrolling temperatureoC________________________________________________________Bitumen 50pen 85LakeAsphaltBitumen 50pen 85PitchBitumen 50pen 85Bitumen 70pen 80LakeAsphaltBitumen 70pen 80Bitumen 125pen 75________________________________________________________NOTETO Toensurethatadequatetimeisavailableforcompaction

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BS594 tobesubstantiallycompletedbeforethetemperature fallsbelowtherecommendedminimumforrolling, aminimumdeliverytemperature,takenwithin30 min.afterarrivalonsite,of130oCisrecommended Inclementand coldweatherworkingLayingshallbecarriedoutwithdueregardtoambientweather General conditionssothatmaterialscanbeproperlycompacted. Ifweatherconditionsaresuchthattheperformanceofthe pavementmaybejeopardised,discontinuealloperations. Layingofasphaltmaterialsshallnotbecarriedoutiffree Rain andstandingwaterispresentonthesurfacetobecovered. standingLayingshouldalsobeavoidedasfarasispracticableduring waterheavyrain.Ifthewetweatherthreatenstobeprolonged,layingofthecoatedmacadamshouldbesuspended.

Forcoldweatherworkingaminimumof24hoursnoticeisrequired Cold weatherbytheEngineerandgenerallythefollowingshallapply:- working

Materialforuseinroadpavementsshallnotbelaidonany surfacewhichisfrozenorcoveredwithice.

NoroadpavementmaterialinafrozenconditionshallbeincorporatedintheWorksbutitmaybeusedifacceptablewhenthawedout.Materialscontainingbitumenbinders,shallnotbelaidifthe temperatureofthesurfacetobecoveredisatorbelow2oC.Wherehoweverthesurfaceisdry,unfrozenandfreefromice,layingmayproceedatairtemperaturesintheshade atorabove-1oConarisingthermometer.Additionally,unlessthetemperatureofthesurfacetobecoveredis5oCormore,rolledasphaltwearingcourseshallnotbelaidwhentheairtemperatureintheshadefallsbelow6oC.LayingoperationsbelowthisairtemperaturemaybeallowedatthediscretionoftheEngineer.Joints in FlexibleSurfacingWhenlayingnewmaterialabuttingfreshlylaidoroldmaterial Abutting freshlycareshallbetakentosecuregoodadhesionbetweenjointsby laid or cuttingbacktheexposedjoint,foradistanceequaltothe old materialspecifiedlayerthickness,toaverticalface,discardingallloosenedmaterialandcoatingtheverticalfacecompletelywithasuitablehotbitumen,orcoldappliedpolymermodifiedintermediateorpremiumgradebitumenemulsion.

Furtherdetails:- fortype4&5roads aregivenina)below

type3roads aregiveninb)below Patches(allpatches) aregiveninc)below Bituminousemulsionspecificationshownind)below

Manholecovers,kerbs,channels,gulliesandsimilarprojections Other verticalagainstwhichasphaltmaterialsaretoabutshallbecleanedand facespaintedwithathinuniformcoatingof50(40/60)or85(70/100)penhotbitumenor,ifapprovedinwritingbytheEngineer,coldappliedthixotropicbitumencompoundofsimilargrade,

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beforethecoatedmacadamislaidasindicatedbelow.Thenewmaterialshallbetampedaroundandagainstsuchprojectionssothat,afterfinalcompaction,thefinishedsurfaceshallbeleftflushornotexceeding6mmabovesuchprojections.Manholecoversandsimilarfittingsshallbeadjustedtothecorrectlevelsbeforethewearingcourseislaid.a) ONTYPE4&5ROADS - Thelongitudinalcentrelinejoint

willrequiresealingwithhotrunbitumenoranapprovedthixotropiccoldcompound.

b)ONTYPE3ROADS - Allverticaljointstobesealed, ANDINDUSTRIALESTATE kerbfacesuptothefinished ROADS waterlineandallironworkto bepaintedwithhotrunbitumen.c) PATCHES - Verticaljointstobepaintedwith (ALLPATCHES) hotrunorapprovedcoldcompound forallpatchesinallcategoriesof

roadsandfootpaths-minimumsizeofpatch2mx2m.

d) SPECIFICATION - TocomplywithBS594:Part2: FORJOINTS Clause6.6. OR

BS4987:Part2:Clauses6.7&6.8 50(40/60)or85(70/100)penetration

hotrunbitumen.

ORifapprovedinwritingbytheEngineer,coldappliedthixotropicbitumencompoundofsimilargrade

e.g.COLAS(BITUKOLDLANSTAR)

-Bitumencoldjointprimerorothersimilarapproved.

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Traffickingofasphaltbase(roadbase)orbindercoursesmaybe Traffickingpermittedforaperiodoftimebeforethesurfacecourseislaid. of asphaltTheyshouldbeblindedwithcoatedgritthatshallbecarried Base(Roadbase)outeitherbyhandormechanicallywithbituminousgritas and BinderspecifiedinBS4987,Part2:7.9andtheguidancegivenin CoursesBS4987,BS4987,Part2-B.5.4beforebeingopentotraffic,withdueregardbeingpaidtothefollowing:-

(a) OnType3,4andindustrialestateroadslimestoneandblast blastfurnaceslagaggregatesarenotallowed,andpermitted

aggregatesshallhaveaminimumP.S.V.of55iftheyarenottobecoveredwithin6weeks.

(b) Ontype5roads,limestoneandblastfurnaceslagaggregatesarenotpermittedinifthegradientexceeds10%(1:10).

(c) Iftemporarytraffickingcausespolishingtotheextent

thatasatisfactoryskidresistanceisnotmaintainedthentheskiddingresistanceshouldberestoredtoasatisfactorylevelbysurfacedressingusingchippingsofminimumP.S.V.55,ortheapplicationofothersurfacetreatmentasapprovedinwritingbytheEngineer. Tolerance insurface levels

of pavement coursesRoadsurface +6mmexceptimmediatelyadjacenttogullies

surfacewaterchannelsandmanholeswhereitshallbe+6mm/-0mm.

Bindercourse +6mmBase(roadbase) +8mmSub-base +10mm/-30mmwhenunderbase(roadbase),otherwise+10mmFormation +20mm/-30mmSurfacelevelsshallbecheckedforcompliancewiththetolerancerequirementsusingthemethoddescribedinparagraph702.4oftheHighwaysAgencySpecificationforHighwayWorks.Tomeettherequirements,nomeasurementshallexceedthepermittedtolerance.Thefinishedsurfaceshallbetestedwitha3metrelongstraightedge,laidlongitudinally.For machine laid

Surface courses,themaximumdepressionundera3metrelongstraightedgeshallnotexceed3mm.

Binder courses,themaximumdepressionundera3metrelongstraightedgeshallnotexceed6mm.

For hand laidSurface courses,themaximumdepressionundera

3metrelongstraightedgeshallnotexceed6mm.Binder courses,themaximumdepressionundera

3metrelongstraightedgeshallnotexceed9mm

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WherethesefiguresareexceededthematerialshallbetreatedinaccordancewiththerequirementsforRectification shownfor:-

SUBBASE&BASE(ROADBASE) onpage4SURFACING onpage24

NOTE: See separate requirements for Block Paving

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BLOCK PAVING

Shallbeinaccordancewiththerequirementsofand BritishrecommendationsinBS7533exceptwhereitisvaried standard forbytheprojectspecification. block paving

Allblockpavingistobebuiltinaccordancewiththelatest GENERALrequirementsofTheHighwaysAgencySpecificationForHighwayWorks:-clause1107

ThelatestrequirementsofSouthYorkshireLaboratorySpecification ForTheSupplyofMaterialsForUseInHighwayWorks.

andthefollowing:-

Unless agreed in writing with the Engineer, all blockpaving shall be concrete block paving.

PenciledgeblocksshallbeusedForcarriagewayconstruction,sub-baseshallbegranulartype1materialinaccordancewithSouthYorkshireLaboratorySpecificationNo19.

Wherethesub-baseistobesubjectedtoresidentialtraffic,

a50mmthickcourseof20mmdenseasphaltbinder

courseshallbelaidontopofthesub-basetoprovide

arunningsurfaceandprotectiontothesub-base.Whereblockpavingistobeusedforcarriagewayconstruction,TheContractorshallalsorefertothefollowingsectionsofthisdocument:-

Page2-Section1INTRODUCTION (AssumedCBRs) Subgrade andand Sub-base (Frostsusceptiblesub-grade)

Page4-Section2MATERIALS-ROADPAVEMENTS Sub-base andPage21-Section7FLEXIBLECARRIAGEWAYSSURFACING Binder course

Thesubgrade,sub-baseandbindercourseshallbepreparedsothat:-(a)thesurfacelevelsarewithinthetolerancesgivenintable1onpage35

(b)thelongitudinalfallsandcrossfallsaresuchthatno depressionsholdwater. Minimumrecommendedgradients:- Longitudinalfall;1.25%(1:80)

Crossfall; 2.50%(1:40)

(c)thesurfaceistightanddenseenoughtopreventlayingcourse (sandlayer)materialbeinglostintothelowerlayersduring

constructionanduse;(d) provisionismadeto:

(1)drainwaterfromanyabuttinglayingcourse,e.g.by

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installationofdrainagewhenthelayingcourseison impermeablefoundations;

(2)preventmigrationandlossoflayingcoursematerial intothedrainagesystem,e.g.byusingageotextile;Theextentofthesitepreparedforblocklayingshallinclude Edgeenoughroomtoprovideadequatefoundationsandbacking restraintsforanyedgerestraint.Edgerestraintsshouldbeadequatetosupporttrafficloadsandtopreventlossoflayingcoursematerialfrombeneaththesurfacecourse.Examplesarekerbs,combinedkerbsandchannels,establishedstructuresorrigidabutmentssuchaspavingblocksfixedvertically,beddedonandhaunchedwithconcrete.Donotvibratethesurfacecourseuntiltheedgerestraint,togetherwithanyconcretehaunching,hasgainedsufficientstrength.Aretobefoundinsection13 StandardConstructiondetailsLAYING COURSE ( SAND BEDDING LAYER)Layingcourse(andjointingmaterial)shallbenaturallyoccurring MaterialsandinaccordancewiththerecommendationsgiveninB.S.7533-3 andTable2onpage30ofthisspecification. Themoisturecontentofthelayingcourseshouldbeas Moistureuniformaspossibleandthematerialshouldbemoist contentwithoutbeingsaturated.Allmaterialtobeusedmustbestockpiledunderacover. StockpilingConstructthelayingcoursesothataftercompaction Screedingitformsalayerapproximately35mmthickbelowthepavingblocks.Whereclosertolerancesthanthosegivenintable1onpage30forthelevelofthesub-basehavebeenachieved,orwhereabindercoursehasbeenused,athinnerlayingcoursecanbeused.However,innocaseshouldthematerialbelessthan25mmthickatanypoint.

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Theobjectofscreedingthelayingcourseistoproduceauniformsurface,tothespecifieddesignprofilesandfalls,atauniformdegreeofcompaction.Whensettingupscreedingrails,allowanceshouldbemadeforthesubsequentcompactionofthelayingcourse

Ifanydisturbanceofthepreparedlayingcoursebypedestrianorwheeledtrafficoccurs,priortoplacingpavingblocks,re-screedareasoflayingcoursematerial.

Constructthelayingcourseusingoneofthemethodsdescribedbelow:-

LAYING METHODS

Spreadthemateriallooseinauniformlayertoapproximately Precompactiontherequiredfinaldepthbelowthesurfaceprofile.Compactthislayerusingavibratingplatecompactor.Spreadafurtherlayerofmaterialabout15mmthickandscreedittocreatealoosesurfaceonwhichthepavingblockscanbeplaced.Spreadthemateriallooseinauniformlayer,andscreedittothe Compactionthicknessrequiredtogivethespecifieddesignthicknessafterthe after layingpavingblockshavebeenlaidandvibratedintoplace.Theprecompactionmethodispreferablebecauseithelpstoensureuniformdensityandcompactionofthelayingcourseandhenceimprovessurfacetolerances.Whereanominalcompactedthicknessof35mmistobeused, Trial areasifpreviousexperienceofaparticularmaterialislacking,asmalltrialareawillbeneededtodeterminetheallowance.Theareaoflayingcoursepreparedshouldgenerally Block layingbesuchthatitsboundaryisnotlessthan1maheadofthe bounderieslayingface,exceptattheendoftheworkingperiodwhentheboundaryshouldbenomorethan1maheadofthelayingface.Theworkingedgeshouldbeprotectedovernightanditmaybenecessarytoremoveanareaofblockspriortoscreedingforthedaysoperation.

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Table.1.Tolerancesonsurfacelevels____________________________________________________________________Layerofpavement Maximumpermissible deviationfromdesignlevel____________________________________________________________________ Sub-layer: sub-base +/-20mm Bindercourse(roadbase) +/-15mmSurfacecourse: overall +/-6mm flatness 10mmundera3m straightedge2mm betweenadjacentblocks adjacenttogullies, surfacedrainage channelsandoutlets (seenote) +6/-0LAYING PAVING BLOCKS

Laypavingblockssothatthesurfacelevelsarewithinthetolerances Surfacegivenintable1.Makeminoradjustmentstomaintainthebond Coursepatternandensurethatthejointsremainwideenoughforsandfilling.Detailsofthebondpatternshouldbeagreedbefore Bondcommencement.Whererectangularblocksarebeingusedin patternareassubjecttovehiculartraffic,herringbonebondshouldbeusedtominimisecreepandtoensurebetterradialdistributionofwheelloads.Followanorderoflayingwhichmaintainsanopenworkingface Order ofanddoesnottrappavingblocks.Thefirstrowofblocksshould Layingbealignedagainsttheedgerestraintorbyusingastraightedgeorstringline.Checkthealignmentofblocksperiodically,e.g.byusingstringlines,andmakeadjustmentswherenecessary.NOTE

Blockpavingisdesignedtofunctionwithsand-filled joints,whichwillnormallylieintherangeof2mm to5mmwhenplacedhandtight.Thejointwidthwillbe influencedbyblockshapeandbondpattern.Laywholepavingblocksfirst,followedbyclosures.Completetheareatobelaid,asfaraspossibleusingwholeblocks.Whereappropriate,incorporateblockshapesdesignedtoassistwiththeformationofboundariesandwithchangesindirection.Completeinfillingbeforecompactioncommences.Whereverpossible,infillingtoboundariesandobstructions Infillingshouldbecompletedasthelayingofthesurfacecourseproceeds.Trimpavingblockstoshapeandsizetoformboundaries.Do Trimmingnotinsertpiecesofasizelessthanone-thirdofafullblock.Thiscanoftenbeachievedbyalteringthebondpatternslightlyattheedgesofthepavingandtrimmingsomeofthepavingblocksinboardoftheedgeblocks.Toworkroundanyobstructions,cutthepavingblockas Obstructionsnecessarytofillinanyirregularshape.

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Fullycompactthesurfacecourseusingaplatecompactorwith Compactionaplateareaofnotlessthan0.25m2,transmittinganeffective of Blockforceofnotlessthan75kN/m2ofplateatafrequencyof Pavingvibrationintherange75Hzto100Hz.Alternatively,useanycompactingequipmentwhichwillachievethesamedegreeofcompactionorbetter.Itisimportanttofillthelowerportionoftheblock-to-blockjointwiththelayingcoursematerial.Carryoutcompactionassoonaspossibleafterlayingbutnotwithin1mofanylayingface.Apartfromthisedgestrip,donotleaveanyareaofpavinguncompactedatthecompletionofthedayswork.Ensurethatthefinishedsurfacelevelsarewithinthetolerancesgivenintable1onPage30.Thecontactareaofaplatecompactormaybe Measuringmeasuredbystandingtheplateonaflatsmooth contact arealevelsurfaceandslidingapieceofcardinfrom of platebothfrontandrearuntilitmeetstheposition compactorwheretheplatetouchestheground.Aftercompactionofthesurfacecourse,spreadsandorcrushed Jointrockfinesoverthesurfaceandbrushitintothejoints.Materials Fillingcomplyingwiththegradingintable2shallbeused.Donot useasandwhichmightstainthepavementsurface,ifthisisanimportantconsideration.NOTE.1. Fillingbetweenthejointsisveryimportant.Itinterlocks

thepavingandhelpsimpartstaticloadbearingcharacteristics.Theuseofdrymaterialwillassistinrapidjointpenetration.

Vibratetheblockpavingtoensurecompletefillingofthe block-to-blockjointbythesurface-appliedsand.Where necessaryaddfurthersandandre-vibratethepaving. Completejointfillingandfinalcompactionassoonas practicableafterlaying.NOTE.2. Whereblockpavingistobeusedbyindustrial

vehiclesimposingexceptionallyhighpointloads,itis advisabletofurthercompacttheentirepavementafter jointfilling.NOTE.3. Concreteblocksshouldnotbevacuumedforatleast threeweeksafterlayinginordertoreducetheriskof jointingsandbeinglost.

ItmaybenecessarytoprovidejointstabilisationcompoundandblocksurfacesealantsatthediscretionoftheEngineer.Table2-Layingcoursesandetc.Thesurfacecourseshallbeinspectedafteranearlyperiodoftraffic Earlyuseandadditionalsandfillingbrushedinwherenecessary TraffickingTable2LayingcoursesandandjoiningsandtocomplywithBS7533:Part3:AnnexD

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Nominal aperture Percentage by mass passingof sieve size through sieveLaying course Jointing sandsand

% %

10.00mm 100 -5.00mm 90-100 -2.36mm 75-100 1001.18mm 55-90 95-100600um 35-65 50-100300um 10-45 15-60150um 0-10 0-1576um 0-3 0-3NOTE:Sandsshouldbegradedbywashing,decantinganddrysievinginaccordancewithBS812:Part103

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8. FOOTWAYS AND VEHICLE CROSSINGSGENERAL

Allfootwaysandvehiclecrossingsaretobebuiltinaccordance withthelatestrequirementsofSeries1100KerbsFootwaysandPavedAreas.ofTheSpecificationForHighwayWorks:-ThelatestrequirementsofSouthYorkshireLaboratorySpecificationForTheSupplyofMaterialsForUseInHighwayWorks.

andthefollowing:-Drawingsshowingdetailsofproposedfootwaysandvehicle DrawingscrossingsareasshallbesubmittedtoTheEngineerpriortocommencementoftheworks.FOOTWAY EDGINGPrecastconcreteedgingaspreviouslyspecifiedshallbelaid Fixingcloselyjointedbetweenfootpathsurfacesandvergesorelsewhere ifdirectedbytheEngineer.Theedgingshallbesolidlybedded onconcrete100mmthickandhaunched(bothsides)with75mmthickconcretesoastoensurethatitdoesnotmoveduringthefootpathconstructionandshallbelaidtocorrectalignmentandlevel.Aftercompletion,anyunitfoundtobemorethan6mmoutoflineorlevelateitherendoftheunitshallbeliftedandre-laid.TheContractorshallberesponsibleforrectifyinganymovement Rectification thatoccurspriortoandduringthemaintenanceperiod.FOOTWAYS AND HARDENED MARGINS Thesub-baseforbothfootwaysandhardenedmarginsaretobe Sub-Base formedwithType1sub-basematerialcomplyingwithSouthLaboratoryspecificationNo19,properlycompacted. Thecompletedsurfaceshallbefreefromirregularitiesandloose materialandistobetruetocrosssection,lineandlevel.Note;Sub-Baseistoextendunderconcretebeddingforkerbsandedging.ASPHALT MATERIALSBindercoursesforasphaltfootwaysshallbedensebinder BindercoursethatshallbelaidinaccordancewithBS4987-2. course 6mmsizeDenseSurfaceCoursethatshallbelaidinaccordance SurfacewithBS4987-2andlaidevenlyonthebindercoursetogive Course foraminimumcompactedthicknessof25mm.Wherethe Footwayssurfacingabutskerbs,thefinalsurfaceshallbebetween2mm and3mmproudofthetopofthekerbandshallbetruetolevelandtherequiredcrossfall.(3%min-4%max).CompactionshallcomplywithB.S.4987-2Clause7. Compaction(Pleaserefertotablesfordelivery&rollingtemperatures of asphaltextractedfromBS4987onpage22) materials

Therecommendedrollerforallfootwayandfootpathworks RecommendedshallbeadoubledrumvibratoryrollerTV.75orBW75ADL rollers(articulated)orsimilarapproved.

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FLAGSItmaybenecessarytolayabondingcoursetoavoid"creep"inlargeareasonsteepgradients.Bondedcoursesofflagsproperlybeddedonthepreparedbase witha10mmsandandcementmortarbed,closelyjointed,anddrivenintopositionwithaheavymaul.Theouteredgeofflagswherethefootwayabutskerbs,istobekeptlevelwiththelatterandthefootwayshallbelaidtruetolevelandrequiredcrossfall.Theflagsshallbelaidincoursesatrightanglestothekerbs.

BLOCK PAVING

Blockpavingmaybeusedasanalternativei.e.60mmthickblocks (PencilEdge)on35mmcompactedsandon150mmofType1sub-basetoSouthYorkshireLaboratorySpecificationNumber19.VEHICLE CROSSINGSFootwayVehicleCrossingssubjectedtomorethanprivatecar trafficshallbeconstructedtothesamespecificationasthe adjacentcarriageway.FootwayvehiclecrossingssubjectedtoprivatecartrafficonlyshallbeconstructedinaccordancewiththeStandardDetails.PEDESTRIAN CROSSINGSDroppedkerbstofacilitatethepassageofwheelchairsandprams, shallbeinstalledatallroadjunctionsandotherpedestriancrossing points,asdirectedbytheEngineer,andshallbeconstructedinaccordancewiththeStandardDetails.(Maximumupstand6mm).LAYING AND COMPACTION OF ASPHALT MATERIALS Materialsshallbecompactedassoonasrollingcanbeeffected Compaction withoutcausingunduedisplacementofthematerialandatnoless thantheminimumrollingtemperature.Thematerialshallbeuniformlycompactedbyanappropriaterollercapableofmeetingtheairvoidrequirementsacrossthefullwidth.Themethodoflayingshallensurethatairvoidsofcompacted Air voidsasphaltmaterialsshallbeintherangeof2%-8%.Notmorethan1in10resultswillbepermittedabove8%andnoresultisallowedover10%.Deliveryandrollingtemperaturestobeinaccordancewiththe Delivery andtablesshownonpage27. rolling temperatures

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9. HIGHWAY VERGES AND PLANTINGGRASS AND GROUND COVER PLANTSAllgrassedandplantedareasaretobebuiltinaccordancewith GeneralthelatestrequirementsofSeries3000ofTheHighwaysAgencySpecificationForHighwayWorkswhereitdoesnotconflictwithBS4428:1989Andthefollowing:-Drawings/plantingplansindicatingspecies,size,spacing/m2 Drawingswithappropriateschedulesandappendicesshallbesubmittedforspecificapprovalfortheschemepriortothe commencementofworks. TopsoiltocomplywithBS3882figureK1fortextureand TopsoilAndBS1377part3pH

Depthtobe450mmforshrubs,tobetopqualityvegetablesoilmaximumstonecontent5%dryweight,notmorethan50mmanydimension.

SoilcontainingJapaneseKnotweedandMaresTailwillberejected.Thesurfaceistobecultivateddowntoaminimumdepthof150mm, Cultivationbringtofinetilthandregulatetoevenlyrunninglevels.Clearoutallweeds,largestones,brokenbrick,perennialweedsandroots.Britishconiferbarkmulchcontaininglessthan5%wood, Bark mulchminimumthicknessof75mmover entireplantedarea, and FertilizersupplyENMAG(orsimilarapproved)andmixintobarkatarateof50g/m2

Approvedfertiliserevenlydistributedatnotlessthan 68grammesperm2(20.10.10).Approvedspeciesofplantsshouldbewellestablishedand Plantsfreefromdisease,withaminimum3goodgrowingpoints.

Size&spacing:- Groundcover 200-300mm-15/m2 Shrubs(medium)450-600mm-6/m2 HedgingPlants 600-900mm-4/Lin-m Theareaistobewellmaintainedfreefromgrass,weeds Maintenanceandlitterandwateredindryweather.GRASSNothinglessthan900mmwidth. Minimum widthSoildepthof150mmreducedtoafinetilth,freefrom Topsoilstonesandotherdebris.Aftersettlement,finishedleveltobe10mmaboveadjacent Finishedconcreteedging/kerb. levelApprovedfertiliserevenlydistributedatnotlessthan Fertiliser68grammesperm2(20.10.10).Lowmaintenancegrassseedorturfshallbeused. Seed

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Duringthemaintenanceperiodallvergesaretobemaintained Maintenanceinhealthycondition,freefromweedsandgrassvergesareto periodbecutregularly.

Attheendofthemaintenanceperiodthereshouldbe100%coverofplantedandgrassedareaswhichare97%weedfree,withnodeadordiseasedplants.

AtreeplantingSpecificationisavailableonrequest. Tree planting Specification

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10. STREET LIGHTINGAllstreetlightingworksaretobeinaccordancewiththelatest GeneralrequirementsofSeries1300&1400ofTheHighwaysAgencySpecificationForHighwayworks.Andthefollowing:-Thedesignandinstallationofstreetlightingschemesisnormally DesignundertakenbyThe Highway Authority. Anearlyapproveddesignwhichmayincludeilluminatedtrafficsignsisrequiredtoavoidanyabortiveworks.

Alistofacceptableequipmentisavailable,onrequest.Developers Acceptablewishingtodeviatefromthislistshoulddiscussthematterwiththe EquipmentLightingEngineerattheearliestopportunity.

Theinstallationofstreetlightingshouldberelatedcloselytothe Installationoccupationofdwellingsandmustnotbeleftuntilthedevelopmentasawholeisnearingcompletion.WheretheworkistobecarriedoutbytheDeveloper,theEngineershouldbeaskedtoapprovethepositionsofthecolumnsonsitepriortoerection.TheDevelopermustmakeallthenecessaryarrangementswiththeElectricityCompanyfortheconnectionofthesupply.Alternatively,subjecttoreceiptofanofficialorder,theHighwayAuthoritywillprovideandinstallequipmentonbehalfoftheDeveloper,andmakethenecessaryarrangementsfortheconnectionoftheelectricitysupply.

Lightingcolumnsshouldbelocatedwithinthelimitsofthehighway,normallyatthebackedgeoffootwayorverge.Incertaininstances,however,itmaybeacceptabletoattachlightingunitstobuildings,forexampleinmewscourts.Thiswillnormallyrequireaway-leaveagreementbetweentheowner,ElectricityCompanyandtheHighwayAuthority.

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11. COMPLETION OF WORKS

Grassvergesaretoberolledduringtheprogressoftheworkand Maintenanceduringtheperiodofmaintenance,andwellwateredindryweather. of VergesTheContractorshallremoveandreplaceanyareasthatarenotinahealthycondition,uptotheendoftheperiodofmaintenance.Thegrassistobecutonaregularbasisandnotlessthan4timesin12months.CLEANLINESS OF THE SITEThewholeoftheworksshallbeleftoncompletioninacleanand Generaltidycondition. ItisanoffencetounderSection151oftheHighwaysAct1980 DeleterioustodepositdeleteriousmaterialonthePublicHighway.The matterDevelopermustensurethatappropriatemeasuresforcleaningareprovidedwithintheCDMRegulations.Itisnormalforthistobeaconditionoftheplanningpermission.

TheContractoristocleansethecarriageway,footwayandverges Cleansingregularlyduringtheprogressoftheworks,asrequiredduringtheirtermofmaintenanceandoncethoroughlyimmediatelybeforetheterminationofthemaintenanceperiod.PROVING DRAINSOncompletionoftheworksalldrains,manholesandgulliesshall Roddingberodded,flushedwithwaterandleftcleanandfreefromobstruction.

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12. MISCELLANEOUS

Streetlighting,trafficsigns,roadmarkingsandstreetname Street LightingplatesshallbeprovidedattheexpenseoftheDeveloper signs etc.AlltheseitemsshallcomplywiththeeditionoftherelevantBritishStandardandSpecificationforHighwayWorkscurrentatthetimeofconstructionforilluminatedsigns(seepage1). Streetnameplatesaretobeerectedpriortooccupancyofany Street nameproperties. platesWhenrequestedbytheEngineer,gritbinsshallalsobeprovided. Grit binsattheexpenseoftheDeveloper.

GritBinswillgenerallyberequiredonroadsand/orfootpathswithagradientsteeperthan1in12(8%)andmustbemaintainedandkeptfullofsaltbyTheDeveloperuntiladoption.FurtherdetailsinthisconnectioncanbeobtainedfromtheEngineeruponrequest.AnyretainingwalltowhichSection167oftheHighwaysAct Retaining Walls1980appliesoranyotherretainingwallorStructurewhich theDeveloperintendstoofferforadoptionbytheHighwayAuthoritymustbeapprovedbytheEngineer.Notesforguidanceonsuchmattersareavailableonrequest.Theextentoftheadoptableareasaretobeclearlydefined Definition oftothesatisfactionoftheEngineer. Highway BoundaryAdoptableparkingareasadjacenttoroadsmustbesurfacedwitha Parking Areasmaterialwhichisnotsusceptibletodamagebyoildroppingsandsuchsurfacingsshouldpreferablybebrindlecolouredblockpavingwithapprovededgerestraint.

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13. STANDARD CONSTRUCTION DETAILSFOOTPATHS, FOOTWAYS AND FOOTWAY VEHICLE CROSSING FOR CAR USE ONLYSurface Course25mm thick0/6mmDBM190PenSurfaceCourseL/StonetoBS4987-1:Clause7.50/4mmFG190PenSurfaceCourseL/StonetoBS4987-1:Clause7.7maybeusedifapprovedbytheEngineer.Binder Course55mm thick0/20mmDBM190PenBinderCourseL/StonetoBS4987-1:Clause6.5Sub-Base150mm thickType1Sub-BasetocomplywithSpecificationforHighwayWorksClause803.Mustbefreefromextraneousmatter.Weedsmustberemovedandthesubgradesprayedwithtotalweedkiller.Note:Concreteblockpavingmaybeusedasanalternativei.e.60mmthickblockson35mmcompactedsandtoBS7533-3(andasdescribedinSECTION6BLOCKPAVINGTABLE2ofthisspecification)on150mmthicknessofType1sub-base.Steep GradientsFootpathswithagradientsteeperthan10%(1in10)willrequire:-1. Handrail(Pleaseseestepdetailforhandrailspecification)

2. Possiblyspecialsurfacetreatment.Note :The use of a single drum roller is not permitted.

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CARRIAGEWAY CONSTRUCTION FOR TYPE 2 ROADS125mm kerb face 155mm kerb face at bus stopsIndustrial RoadsSurface Course40mm thick0/14mmSMA50pensurfacecourseH/StonePSV60toSouthYorkshireLaboratorySpecificationNo41.OR45%0/10mmHighStoneContent50pensurfacecoursesteelslagtoSouthYorkshireLaboratorySpecificationNo29with10mmaggregate(or14mmaggregateattherequestoftheEngineer)Note :Limestone and blast furnace slag aggregates are not allowed in the carriageway surfacing course.Binder Course70mm thick0/20mmDBM125penbindercourseH/StonetoBS4987-1;Clause6.5Notes1. Blast furnace slag and limestone aggregate are only allowed in the carriagewaybinder course if it is to be covered within 6 weeks.2. Coated grit will be required on all binder courses unless laid concurrently withthe surface layer to BS 4987-1:Clause 7.9Base (Roadbase)120mm thick0/32mmDBM125penbaseL/StonetoBS4987-1:Clause5.2.Sub-BaseThicknessinaccordancewithCBRvalueoftheSub-Grade.470mm thickTobelaidunlesssiteinvestigationindicatesthatalesserthicknesswillsuffice.AnyvariationistobeagreedinwritingwiththeEngineer.Type1Sub-BasetocomplywithSpecificationforhighwayWorksClause803.Footwaysaretobeaspreviouslydescribedbutfootwayvehiclecrossingsshallbeconstructedastheadjacentcarriageway.TheaboveistoreadinconjunctionwithSection7FLEXIBLECARRIAGEWAYS.

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CARRIAGEWAY CONSTRUCTION FOR TYPE 3 ROADS(MAIN ROADS AND PARADES)125mm kerb face 155mmkerb face at bus stopsSurface Course40mm thick0/14mmSMA50PenSurfaceCourseH/StonePSV60toSouthYorkshireLaboratorySpecificationNo41.(AlesserthicknessofSMAmaybepermittedifagreedinwritingwiththeEngineerseenote1below)OR45%0/10mmHighStoneContent50PenSurfaceCourseSteelSlagtoSouthYorkshireLaboratorySpecificationNo29with10mmaggregate(or14mmaggregateattherequestoftheEngineer)NoteLimestoneandblastfurnaceslagaggregatesarenotallowedinthecarriagewaysurfacecourseBinder Course50mm thick0/20mmDBM125PenBinderCourseH/StonetoBS4987-1:Clause6.5.Notes1. IfareductioninthicknessofSurfaceCourseisapprovedthentheBinderCoursethicknessshallbe

increasedbyappropriateamount.2. Blastfurnaceslagandlimestoneaggregatesarenotallowedinthecarriagewaybindercourseunlessthe

bindercourseistobecoveredin6weeks.3. CoatedgritwillberequiredonallbindercoursesunlesslaidconcurrentlywiththesurfacelayertoBS

4987-1:Clause7.9.Base (Roadbase)100mm thick0/32mmDBM125PenBaseL/StonetoBS4987-1:Clause5.2Sub BaseThicknessinaccordancewithCBRvalueofSubGrade470mm thickTobelaidunlesssiteinvestigationindicatesthatalesserthicknesswillsuffice.AnyvariationistobeagreedinwritingwiththeEngineer.Type1Sub-basetocomplywithSpecificationforHighwayWorksClause803. The above is to be read in conjunction with Section 7 FLEXIBLE CARRIAGEWAYS.

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CARRIAGEWAY CONSTRUCTION FOR TYPE 4 ROADS(COLLECTOR AND LOCAL STREETS)100mm kerb face 155mm kerb face at bus stopsSurface Course30mm thick0/10mmCGSurfaceCourse125PenH/StonetoBS4987-1:Clause7.4Note :Limestoneandblastfurnaceslagaggregatesarenotallowedincarriagewaysurfacescourses.Binder Course50mm thick0/20mmDBM125PenBinderCourseH/StonetoBS4987-1:Clause6.5Notes1. Limestoneandblastfurnaceslagaggregatesarenotallowedinthecarriageway bindercourse.2. Coatedgritwillberequiredonallbindercoursesunlesslaidconcurrentlywiththe surfacelayertoBS4987-1:Clause7.9Base (Roadbase)90mm thick0/32mmDBM125PenBaseL/StonetoBS4987-1:Clause5.2Sub BaseThicknessinaccordancewithCBRvalueofsub-grade.440mm thickTobelaidunlesssiteinvestigationindicatesthatalesserthicknesswillsuffice.AnyvariationistobeagreedinwritingwiththeEngineer.Type1Sub-BasetocomplywithSpecificationforHighwayWorksClause803.TheaboveistobereadinconjunctionwithSection7FLEXIBLECARRIAGEWAYS.

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CARRIAGEWAY CONSTRUCTION FOR TYPE 5A ROADS(VILLAGE STREET)100mm kerb faceSurface Course25mm thick0/6mmDBM125PenSurfaceCourseH/StonetoBS4987-1:Clause7.5Note :Limestoneandblastfurnaceslagaggregatesarenotallowedinthecarriagewaysurfacecourses.Binder Course50mm thick0/20mmDBM125PenBinderCourseH/StonetoBS4987-1:Clause6.5Note :CoatedgritwillberequiredonallbindercoursesunlesslaidconcurrentlywiththesurfacelayertoBS4987-1:Clause7.9Base (Road Base)70mm thick0/32mmDBM125PenBaseL/StonetoBS4987-1:Clause5.2Sub-BaseThicknessinaccordancewithCBRvalueoftheSub-Grade390mm thickTobelaidunlesssiteinvestigationindicatesthatalesserthicknesswillsuffice.AnyvariationistobeagreedinwritingwiththeEngineer.Type1Sub-BasetocomplywithSpecificationforHighwayWorksClause803.TheaboveistobereadinconjunctionwithSection7FLEXIBLECARRIAGEWAYS

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SHARED SURFACE CONSTRUCTION FOR ACCESS WAYS/ACCESS COURT/MEWS COURT(TYPE 5B)RECTANGULAR INTERLOCKING CONCRETE BLOCK PAVING(PencilEdge),(Fineline),(Chamferless)or(Minichamfer).60mmThick- Concreteblockpavinglaidonascreededlayer35mmcompacted

thicknessofnaturallyoccurringsand,complyingwithBS7533:Part3(andasdescribedinSECTION6-BLOCKPAVINGTABLE2ofthisspecification)MethodoflayingtobeinaccordancewithBS6717Part3.Othertypesofblockpavingmaybeapprovedonrequest.

Unlessotherwiseapprovedtheblocksshallbe200mmx100mm.ColoursofblockstoberestrictedtoBuff,Red,Charcoal,andBrindle(brown,grey,red)inacombinationtobeagreedbytheEngineer.BINDER COURSE50mmThick- 0/20mmDBM125PenBinderCourseH/StonetoBS4987-1:Clause6.5SUB-BASEThicknessinAccordancewithC.B.R.ValueofSub-grade340mmThick- Tobelaidunlesssiteinvestigationindicatesthatalesserthicknesswill

suffice.AnyvariationistobeagreedinwritingwithTheEngineerType1granularsub-basetoSouthYorkshireLaboratorySpecificationNo.19.GENERAL REQUIREMENTS FOR KERBING, CHANNELLING & EDGINGKERBINGAllkerbs,channelsandedgingsmustbehydraulicallypressedprecastconcretetoBS.7263andSouthYorkshireLaboratorySpecificationNo.11.Non-standardorspecialkerbonType5roadstobeagreedwiththeEngineer.KERB SIZE125mmx250mmhalfbatteredkerbs.125mmx150mmbullnosedroppedkerbs(centres)ontype3,4&5Aroads.50mmx150mmflattoppededgingsforfootpaths.SpecialkerbsasapprovedbytheEngineer(Red,Charcoal,BufforBrindle).

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KERB FACE100mmonType4and5Aroads125mmonType3roadsandindustrialestateroads30mmonType5B(orotherapproved).25mmatvehiclecrossings.(Seetypicalvehiclecrossingdetail)0-6mmatpedestriancrossings.(Seetypicalpedestriancrossingdetail)RADIUS KERBSForkerbradiiupto12museproperlyformedradiuskerbs.Forradiibetween12mand20muse450mmlong,straightkerbs,above20mradiususe900mmlong,straightkerbs.KERB RACEConcretetobeST4tothefollowingdimensions:-275mmwidex150mmdeepforkerbing425mmwidex150mmdeepforkerbingandchannellingtogetherNote :Concrete shall be vibrated with a vibrating poker to ensure adequate compaction200mmwidex100mmdeepwetbedconcreteforedging.Wetbedconcreteforkerbing,channellingandstringcourses,tothedimensionsshownabovemaybeallowedonshortsectionsasanalternativeifagreedinwritingwiththeEngineer.Kerbsmustbebeddedon1:4sand/cementmortarlaidamaximumof25mmthickandaminimumof13mmthick.Kerbsmustbeproperlybackedwith150mmconcreteasshownonthetypicalcrosssection.Edgingsaretobehaunched(bothsides)with75mmthickconcrete.Stringcoursesshallbehaunchedbothsideswith150mmthickconcrete.CHANNEL BLOCKSHydraulicallypressedconcreteblockssize150mmx125mm(150mm)shallbeusedadjacenttokerbswhenconditionsdescribedinSECTION6.KERBS,FOOTWAYSANDPAVEDAREAS(CHANNELBLOCKS)prevail.

Dished channels are not permitted. Square/Mews/Courtsthatareblockpavedandedgedrainedmustbesteeperthan1.25%(1in80).Stringcoursesshallcomprise125mmx255mmprecastconcretechannelblocksor125mm(150mm)x150mmin450mmlengths.

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97. MANHOLES AND HIGHWAY DRAINS Generallyallmanholesandhighwaydrainsshallbeconstructed andlaidinaccordancewithcurrenteditionofSewersforAdoption. Claypipesandfittingsshallbeinaccordancewiththerequirements

ofBS.65.ConcretepipesandfittingsshallbeinaccordancewiththerequirementsofBS.5911andshallbefittedwithapprovedflexiblejoints.

Plasticpipesandfittingsshallbeinaccordancewiththerequirementsof

EN1401-1BS4660andthewaterindustryspecificationW1S4/35/01.Gullyconnectionsshallbesurroundedwith150mmthicknessST4concreteandincludeaflexiblejointoneachpipe.Wherethecovertoapipelinelaidunderacarriagewayis1.2morless,itshallbesurroundedwith150mmthicknessST4concrete.

Whereaconcretesurroundisnotrequired,pipelinesshallbelaidon

aconcreteorgranularbeddesignedinaccordancewithSimplifiedTablesofExternalLoadsorBuriedPipelinesissuedbytheTransportResearchLaboratory.Gullyconnectionsshouldnotexceed20minlength.

Draintrenchesarenottobebackfilleduntilthepipeworkhasbeen

approvedbytheEngineerwhichmayincludeairand/orwatertests. TrenchesinthecarriagewaysaretobebackfilledwithType2 granularmaterialtoSouthYorkshireLaboratorySpecificationNo.20

(orothermaterialapprovedinwritingbytheEngineer)whichshallcontainaminimumof10%ofmaterialretainedona37.5mmBSSieve.

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Access way Detail

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Mew Court Detail

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Standard Kerb Detail

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Footway Edging Detail

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Typical Vehicle Crossing To Individual House

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Typical Pedestrian Crossing

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Pedestrian Tactile Crossing Detail

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Typical Pedestrian Safety Barrier

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Road Gully Details

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Road Gully Details

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Typical Footpath Gully Detail

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Details Of Plasmobility Kerb 99

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Details Of Dropper Kerb

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Typical Fencing Position

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Pre-cast Concrete Step Detail with Handrail

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Standard Detail A-Frame Barrier

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Standard Detail A-Frame Barrier

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ALPHABETICAL INDEXA F

Accessway/court 49,59 Fencing-ConcretePostSurround 6,75AdoptableAreas 43 Fertiliser 39AirVoids 23,38 Fill 13Airentrainedconcrete 6 Fitting-ConcretePipe 5AsphaltFinisher 9,23 Flags 9,38 FlexibleCarriageways 20

B FootpathGullies 6BackfilltoTrenches 16,17 Footways 4,37,67Barriers 69,77,78 FrostSusceptibility 2BinderCourse 25,29,31,37 FrozenMaterial 27Binders 8 BituminousMaterials G-Delivery 25,26 Geotextile 9,32-Thickness 22,23 GranularFill 13BlockPaving 9,30,34,38 GritBins 43Bricks 5 GrassBrickwork 15 -Cutting 40BritishStandards 2,20 -Seed 39BusDraw-ins 6 -Verges 40 Gradients 44

C GroundInvestigation 11CarriagewaySurfacing 20 Gullies

CBR 2,44-48 -Brickwork 15Cement 7 -Connections 15ChannelBlocks -General 6,71,72-General 7,18,49 -Grates&Frames 5,70-Laying 19 -Plastic 6ChannelFalls 19 -Pots 6Cleansing 42 -Rodding 42ColdWeatherWorking 27 Compaction 24 H-Bituminous 20,38 Handrails 38-BlockPaving 35 HandLaying 23-Subgrade 12,22 CompletionofWorks 42 IConcrete 6 Ice-Layingon 27ConcreteCarriageway 6 InclementWeather 27Crossfall 31 IndustrialEstateRoads 22,48,52CycleTrack 9,67 Ironwork 5 InspectionChambers 18

D Inspections 2Damagetoprecastproducts 19 Definitions 2 JDeleteriousMaterial 42 JointFilling-BlockPaving 35DeliveryTemperatures 26,27 JointSealing 8,27Demolition 11 Joints 18,27,35DiversionofWaterways 14 Drainage K-Ironwork 5 Kerbs-Subsoil 11 -Bedding&Backing 5,50Drains -General 18,61-General 50 -Face 18,50-Rodding 42 -Laying 18-Testing 16 -Race 50-Trenches 51 -Radii's 18,50DroppedKerbs 37 -Size 49 -Plasmobility 73,74

E EdgeRestraints 32 Edging 37,62

Engineer 2 Excavation 12,14


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BJS/MS/3758.02/080104

L S

LandDrains 14 Sampling 4LayingBlockPaving 32,33,34 SandLaybys 6 -BlockPaving 32Lighting 43 -Grading 32 SettingOut 11

M SharedSurfaces 49MaintenancePeriod 42 Signs 43Manholes SiteClearance 11-Brickwork 15 Slag 8-Cover&Frames 5 Soakaways 5-Foundations 6 SoftSpots 12-General 16,50 SoilSurveys 11-Rodding 42 Specification 2-Slabs 6 StandardConstructionDetail 44-51Markings 43 StandingWater 14,27Materials 4 StepIrons 5MewsCourts 49,60 Steps 76Mortar 7 Streams 14Miscellaneous 43 StreetLighting 41,43 StringCourses 34,50

N Sub-base 4,7,20,22,31,37NamePlates 43 Sub-gradeCompaction 22

Sub-gradeDrainage 11O - P SurfaceLevels 23,29

Paintwork 10 Surfacing 7,23,44-50ParkingAreas 43 PedestrianCrossing 37,64 TPenetrationofBinder Tackcoat 25PercentageRefusalDensity 23 TactilePaving 65Pipes Temperature-Bedding&Haunching 6 -Delivery 26,27-General 5 -Rolling 26,27-Clay 5 Testing 4-Concrete 5 TestingDrains 16-Plastic 5 ToleranceSurfaceLevels 29,30PlantedVerges 39 TopSoil 12,39PlantSize&Spacing 39 Trafficsigns 43PorousPipes 5 Trafficking 13,29,35PreparationofBinderCourse 25 Trees 40PSV 28 Trenches 51 Type2Roads 45,56

Q-R Type3Roads 46,57Ramps 66 Type4Roads 47,58RepresentativeSamples 4 Type5ARoads 48,59RetainingWalls 43 Type5BRoads 49,60Roadbase 7,23,29 RoadHumps 9,68 U-VRoadMarking 43 VehicleCrossing 37,38,63RoadType 3 Verges 39,42Rock 12,14 Rollers 12,21,37 WRollingTemperatures 26,27 Waterways -TemporaryDiversions 14 Weeds 39,40 WearingCourse 44-49 Weather 27 XYZ


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Useful Contacts

Barnsley Metropolitan Borough CouncilPlanning and Transportation Service

Central OfficesKendray StreetBARNSLEYS70 2TN01226 772177www.barnsley.gov.uk

Barnsley Development AgencyBeevor CourtPontefract RoadBarnsleyS71 1HG

01226 784444www.barnsleydevelopmentagency.co.uk

Doncaster Metropolitan Borough CouncilDirectorate of Borough Strategy and Development2nd Floor, Danum HouseSt.Sepu

highway specification

Documents