Designation:C1840/C1840M−17StandardPracticeforInspectionandAcceptanceofInstalledReinforcedConcreteCulvert,StormDrain,andStormSewerPipe1ThisstandardisissuedunderthefixeddesignationC1840/C1840M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thispracticecoverstherequirementsforinspectionandacceptanceofinstalledreinforcedconcretepipebyeitherperson-entry,orremoteinspectionasshowninFigs.1and2,respectively.1.2Thescopeofthisspecificationisintendedforinstalla-tionrelatedobservationsandassumesthatpre-installationinspectionhasbeencompleted.1.3Thereinforcedconcreteculvert,stormdrainandstormsewerpipeshallbemanufacturedinaccordancewithSpecifi-cationC76,C506,C507,C655,orC1417andacceptedinaccordancewithAASHTOR073.Thisspecificationshallonlybeusedforgravity,non-pressurestormdrainageapplications.1.4PersonEntryshallbeusedunlessextenuatingcircum-stancesprecludethistypeinspection.Remoteinspectionisacceptableforuseforpipediametersof30in.[750mm]andsmallerunlessotherwisespecifiedbyownerorengineer.1.5AccessofinstalledpipeformanualinspectionshallfollowOSHA29CFRPART1926SUBPARTAAregulationsforconfinedspaceentry.However,thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.6Thispracticedoesnotcoverdeformationordeflectionassessment.Concretepipeisclassifiedasarigidstructurebecausetheydonotbendordeflectappreciablyunderloadbeforecracking.Duetothesefactsshapeevaluationareoflittleornovaluewhenevaluatingconcretepipe.1.7ThevaluesstatedineitherImperial/USor[SIunits]aretoberegardedseparatelyasstandard.TheSIunitsareshowninbrackets.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemsh...
