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Highway Standards & District Specific Standards
These drawings show the details of various construction items and are used in conjunction with the Standard Specifications. The applicable Standards are referenced on the cover sheet of the plans.
The drawing files below are the most current revisions. Navigate to District Specific Standards to view specific drawings that pertain to IDOT districts.
This website utilizes varied software, media tools, files and applications to present or make available varied information. If you are unable to open these files, please navigate to the troubleshooting webpage for assistance.
Complete Highway Standards (PDF)
- Revision 226 - effective 01/01/2023
- Revision 225 - effective 01/01/2022
- Revision 224 - effective 01/01/2021
- Revision 223 - effective 01/01/2020
- Revision 222 - effective 03/01/2019
- Revision 221 - effective 01/01/2019
- Revision 220 - effective 01/01/2018
- Revision 219 - Effective 01/01/2017
- Revision 218 - Effective 04/15/2016
- Revision 217 - Effective 04/01/2016
Individual Highway Standards (PDF)
- 226-000001-08_standardsymbolsabbreviations&patterns-001.pdf
- 226-001001-02_areasofreinfrebars.pdf
- 226-001006_decimalofinch&foot.pdf
- 226-202001-01_earthmedditchcheck.pdf
- 226-280001-07_temperosioncntrlsystems.pdf
- 226-285001-02_fabricformedconcrevetmentmats.pdf
- 226-353001-05_pccbsecsewithhmabind&surfcses.pdf
- 226-406001-06_entrramptermflexpvmt.pdf
- 226-406101-05_exitrampterminal.pdf
- 226-406201-01_mailboxturnout.pdf
- 226-420001-10_pavementjoints.pdf
- 226-420101-07_24ftjointedpccpvmt.pdf
- 226-420106-07_36ftjointedpccpvmt.pdf
- 226-420111-04_pccpvmtroundouts.pdf
- 226-420201-12_entrrampterm-pccadjtopcc.pdf
- 226-420206-13_entrrampterm-pccadjtocrc.pdf
- 226-420301-09_exitrampterm-pccadjtopcc.pdf
- 226-420306-11_exitrampterm-pccadjtocrc.pdf
- 226-420401-13_PavementConnector(PCC)ForBridgeApproachSlab.pdf
- 226-420406_PavementConnector(HMA)forBridgeApproachSlab.pdf
- 226-420501-07_pccpvmt&pccbsecseadjtorrgradexing.pdf
- 226-420701-03_PavementWeldedWireReinforcement.pdf
- 226-421001-03_barreinfforcrcpvmt.pdf
- 226-421101-10_24ftcrcpvmt-wwideflangebeamtermjt.pdf
- 226-421106-10_36ftcrcpvmt-wwideflangebeamtermjt.pdf
- 226-421201-07_24ftcrcpvmt-wlugsys.pdf
- 226-421206-07_36ftcrcpvmt-wlugsys.pdf
- 226-424001-11_PerpendicularCurbRamps.pdf
- 226-424006-05_DiagonalCurbRamps-054.pdf
- 226-424011-04_CornerParallelCurbRamps.pdf
- 226-424016-05_MidBlockCurbRamps.pdf
- 226-424021-06_DepressedCorner-057.pdf
- 226-424026-03_EntranceAlleyPedestrianCrossings.pdf
- 226-424031-02_MedianPedestrianCrossings.pdf
- 226-442001-04_ClassApatches.pdf
- 226-442101-09_ClassBPatches.pdf
- 226-442201-03_classc&dpatches.pdf
- 226-482001-02_hmashldadjtoflexpvmt.pdf
- 226-482006-03_hmashldadjtorigidpvmt.pdf
- 226-482011-03_hmashldstrips(shlds)wresurforwiden&resurfproj.pdf
- 226-483001-06_pccshld.pdf
- 226-515001-04_nameplateforbridges.pdf
- 226-542001-06_ConcreteEndSectionsforPipeCulverts15inthru84inDia.pdf
- 226-542011-02_ConcreteEndSectionsforEllipticalPipeCulverts15inThru72inEquivDia.pdf
- 226-542201-02_reinfconcendsectforpipeculv15-36indiaskewed.pdf
- 226-542206-04_reinfconcendsectforpipeculv42-60indiaskewed.pdf
- 226-542301-03_precastreinfconcflaredendsect.pdf
- 226-542306-03_precastreinfconcellipticalflaredendsect.pdf
- 226-542311-07_TraversablePipeGrateForConcreteEndSection.pdf
- 226-542401-04_metalflaredendsectforpipeculv-092.pdf
- 226-542406-04_metalflaredendsectforpipearch-093.pdf
- 226-542411_SlopedMetalEndSectionsforPipieCulverts15inthru60inDia.pdf
- 226-542416_SlopedMetalEndSectionforPipeArchCulverts15inthru72inEquivDia.pdf
- 226-542501-02_inletboxtypea24in.pdf
- 226-542506-03_inletboxtypeb24in.pdf
- 226-542511-02_inletboxtypec24in.pdf
- 226-542516-03_inletboxtyped24in.pdf
- 226-542521-02_inletboxtypee24in.pdf
- 226-542526-03_inletboxtypef24in.pdf
- 226-542531-04_inletboxtypeg24in.pdf
- 226-542536-03_inletboxtypea36in.pdf
- 226-542541-02_inletboxtypea48in.pdf
- 226-542546-01_flushinletboxformedian.pdf
- 226-542601-03_rcpipeelbow.pdf
- 226-542606-02_rcpipetee.pdf
- 226-601001-05_pipeunderdrains.pdf
- 226-601101-02_conchdwforpipeunderdrains.pdf
- 226-602001-02_catchbasin-typea.pdf
- 226-602006-04_catchbasin-typeb.pdf
- 226-602011-02_catchbasin-typec.pdf
- 226-602016-02_catchbasin-typed.pdf
- 226-602106-03_DrainStruct-Type4&5-125.pdf
- 226-602301-04_inlet-typea.pdf
- 226-602306-03_inlet-typeb.pdf
- 226-602401-07_PrecastManhole-TypeA4ftdia-129.pdf
- 226-602402-03_PrecastManhole-TypeA5ftdia-131.pdf
- 226-602406-11_PrecastManhole-TypeA6ftdia-133.pdf
- 226-602411-09_PrecastManhole-TypeA7ftdia-136.pdf
- 226-602416-09_PrecastManhole-TypeA8ftdia-139.pdf
- 226-602421-09_PrecastManhole-TypeA9ftdia-142.pdf
- 226-602426-03_PrecastManhole-TypeA10ftdia-145.pdf
- 226-602501-06_PrecastValveVault-TypeA4ftdia-148.pdf
- 226-602506-03_PrecastValveVault-TypeA5ftdia-150.pdf
- 226-602601-06_PrecastReinfConcFlatSlabTop.pdf
- 226-602701-02_manholesteps.pdf
- 226-604001-05_fram&lids-type1.pdf
- 226-604006-05_Frame&GrateType3.pdf
- 226-604011-05_frame&gratetype3v.pdf
- 226-604016-04_frame&gratetype4.pdf
- 226-604021-04_baseframe&lidstype5.pdf
- 226-604026-03_Frame&GrateType6.pdf
- 226-604031-03_GrateType7.pdf
- 226-604036-03_GrateType8.pdf
- 226-604041-03_frame&gratetype9.pdf
- 226-604046-03_frame&gratetype10.pdf
- 226-604051-04_frame&gratetype11.pdf
- 226-604056-04_frame&gratetype11v.pdf
- 226-604061-03_frame&gratetype12.pdf
- 226-604066-02_frame&lidtype15.pdf
- 226-604071-07_frame&gratetype20.pdf
- 226-604076-06_frame&gratetype21.pdf
- 226-604081-06_frame&gratetype22.pdf
- 226-604086-05_frame&gratetype23.pdf
- 226-604091-05_frame&gratetype24.pdf
- 226-604101-01_medianinletfor24inrcpipe.pdf
- 226-604106-01_medianinletfor36inrcpipe.pdf
- 226-606001-08_conccurbtypeb&comboconcc&g.pdf
- 226-606006-04_outletsforconcc&g-typeb-6.24.pdf
- 226-606101-05_typeagut-inloutl&entr.pdf
- 226-606106-05_outltype1fortypeagut.pdf
- 226-606111-03_outltype2fortypeagut.pdf
- 226-606201-04_typebgut-inloutl&entr.pdf
- 226-606206-04_outltype1fortypebgut.pdf
- 226-606211-04_outltype2fortypebgut.pdf
- 226-606301-04_PCCIslands&Medians.pdf
- 226-606306-04_corrugatedpccmedians.pdf
- 226-606401-02_pavedditch.pdf
- 226-610001-09_ShldInletWithCurb-192.pdf
- 226-630001-12_SteelPlateBeamGrdrail.pdf
- 226-630006_NonBlockedSteelPlateBeamGrdrail.pdf
- 226-630101-10_StrongPostGuardrailAttachedtoCulv.pdf
- 226-630106-02_LongSpanGuardrailOverCulvert.pdf
- 226-630111-01_WeakPostGuardrailAttachedtoCulvert.pdf
- 226-630116_BacksideProtectionOfGrdRail.pdf
- 226-630201-07_PCC-BitStb@SteelPlateBeamGrdRail.pdf
- 226-630301-09_ShldWidenForType1GrdrailTerms.pdf
- 226-631006-08_TrafBarTermType1B.pdf
- 226-631011-10_TrafBarTermType2.pdf
- 226-631026-06_TrafBarTermType5.pdf
- 226-631031-18_TrafBarTermType6.pdf
- 226-631032-10_TrafBarTermType6A.pdf
- 226-631033-09_TrafBarTermType6B.pdf
- 226-631046-04_trafbartermtype10.pdf
- 226-631051-03_trafbartermtype11.pdf
- 226-631061-01_TrafBarTermType13.pdf
- 226-631066_TrafBarTermType14.pdf
- 226-635001-02_delineators.pdf
- 226-636001-02_cablerdgrd-singlestrand.pdf
- 226-637006-05_ConcBarrierDblFace44inHeight-230.pdf
- 226-638101-02_concglarescreen.pdf
- 226-639001-02_sightscrn-precstprestressconcpanelwall.pdf
- 226-640001-01_sightscrn-chainlinkfence.pdf
- 226-641001-01_sightscrn-cedarstckadefencetypes.pdf
- 226-641006-01_sightscrn-woodplankfencetypep.pdf
- 226-642001-03_ShoulderRumbleStrip16in.pdf
- 226-642006-01_ShoulderRumbleStrip8in-240.pdf
- 226-643001-02_SandModuleImpactAttenuators.pdf
- 226-664001-02_ChainLinkFence.pdf
- 226-665001-02_WovenWireFence.pdf
- 226-666001-01_ROWMrkrs.pdf
- 226-667001-01_DrainageMrkrs.pdf
- 226-667101-02_PermanentSurveyMrkrs.pdf
- 226-668001-01_MethOfResetting-USGS&NGS-Benchmarks.pdf
- 226-701001-02_OffRdOp-2L2W-15ftMinFromEOP.pdf
- 226-701006-05_OffRdOp-2L2W-15ftToEOP.pdf
- 226-701011-04_OffRdMovingOp-2L2W-DayOnly.pdf
- 226-701101-05_OffRdOp-MultiLn-LessThan15ftToEOP.pdf
- 226-701106-02_OffRdOp-MultiLn-MoreThan15ftAway.pdf
- 226-701201-05_LnClosure2L2W-DayOnly.pdf
- 226-701206-05_LnClosure2L2W-NightOnly45MPHOrMore.pdf
- 226-701301-04_LnClosure2L2W-ShortTimeOp.pdf
- 226-701306-04_LnClosure2L2W-SlowMoveOpDayOnly45MPHOrMore.pdf
- 226-701311-03_LnClosure2L2W-MovingOpDayOnly.pdf
- 226-701316-13_LnClosure2L2W-BridgeRepair45MPHorMore.pdf
- 226-701321-18_LnClosure2L2W-BridgeRepairWith Barrier.pdf
- 226-701326-04_LnClosure2L2W-PvmtWidening45MPHOrMore.pdf
- 226-701331-05_LnClosure2L2WWithRunAround45MPHOrMore.pdf
- 226-701336-07_LnClosure2L2W-WorkAreasInSeries45MPHOrMore.pdf
- 226-701400-11_ApprchToLnClosure-FrwayExpway.pdf
- 226-701401-13_LnClosureFrwayExpway.pdf
- 226-701402-12_LnClosureFrwayExpwayWithBarrier.pdf
- 226-701406-13_LnClosureFrwayExpway-DayOpOnly.pdf
- 226-701411-09_LnClosureMultiLn-EntrOrExitRamp45MPHOrMore.pdf
- 226-701416-11_LnClosureFrwayExpwayWithCrossover&Barrier.pdf
- 226-701421-08_LnClosureMultiLn-DayOpOnly45-55MPH.pdf
- 226-701422-10_LnClosureMultiLn-45-55MPH.pdf
- 226-701423-10_LnClosureMultilnWithBarrier45-55MPH.pdf
- 226-701426-09_LnClosureMultiLn-IntermittantOrMovingOp45MPHOrMore.pdf
- 226-701427-05_LnClosureMultiLn-IntermittantOrMovingOpLTorEQ40MPH.pdf
- 226-701428-01_TrafficControlSetupRemovalFreewayExpressway.pdf
- 226-701431-13_LnClosureMultiLnUndividedWithCrossover45-55MPH.pdf
- 226-701446-11_TwoLnClosure-FrwayExpway-284.pdf
- 226-701451-05_RampClosureFreewayExp.pdf
- 226-701456-05_PartialExitRampClosureFreewayExpressway.pdf
- 226-701501-06_UrbanLnClosure2L2W-Undivided.pdf
- 226-701502-09_UrbanLnClosure2L2WWithBidirectLeftTurnLn.pdf
- 226-701601-09_UrbanLnClosureMultiLn1W2WWithNontrvsableMed.pdf
- 226-701602-10_UrbanLnClosureMultiLn2WWithBidirectLeftTurnLn.pdf
- 226-701606-10_UrbanSingleLnClosureMultiLn2WWithMountableMed.pdf
- 226-701611-01_UrbanHalfRoadClosureMultiLn2WWithMountableMed.pdf
- 226-701701-10_UrbanLnClosureMultiLnIntersection.pdf
- 226-701801-06_SidewalkCornerOrCrosswalkClosure.pdf
- 226-701901-08_TrafCntrlDevices.pdf
- 226-704001-08_TempConcBarrier.pdf
- 226-720001-01_SignPanelMountDetails.pdf
- 226-720006-04_SignPanelErectDetails.pdf
- 226-720011-01_MetalPostsForSignsMrkrs&Delineators.pdf
- 226-720016-04_MastArmMountedStNameSigns.pdf
- 226-720021-03_SignPanels-ExtrudedAlumType.pdf
- 226-725001-01_ObjectandTerminalMarkers.pdf
- 226-728001-01_TelescopingSteelSignSupport.pdf
- 226-729001-01_AppOfTypesA&BPosts.pdf
- 226-731001-01_BaseForTelescopingSteelSignSupport.pdf
- 226-780001-05_TypicalPvmtMrkings.pdf
- 226-781001-04_TypicalAppRaisedReflcPvmtMrkrs.pdf
- 226-782001-01_CurbReflectors.pdf
- 226-782006-01_GuardrailandBarrierWallReflectorMountingDeatils.pdf
- 226-805001-01_ElecSrvcInstallDetails.pdf
- 226-812001-01_RacewaysEmbeddedinStructure.pdf
- 226-814001-03_Handholes.pdf
- 226-814006-03_DoubleHandholes-329.pdf
- 226-821001_UnderpasLightingWallMount.pdf
- 226-821006_UnderpasLightingSuspended.pdf
- 226-821101-02_Luminaire Wiring in Pole.pdf
- 226-825001-04_LightingControllerPoleMount240V.pdf
- 226-825006-03_LightingControllerPoleMount480V.pdf
- 226-825011-04_LightingControllerPedestalMount240V.pdf
- 226-825016-04_LightingControllerPedestalMount480V.pdf
- 226-825021-04_LightingControllerBaseMount240V.pdf
- 226-825026-04_LightingControllerBaseMount480V.pdf
- 226-826001-03_ObstructionWarnLightingController240V.pdf
- 226-826006-03_ObstructionWarnLightingController480V.dgn.pdf
- 226-830001-03_LightPoleAluminumMastArm.pdf
- 226-830006-05_LightPoleAluminumDavitArm.pdf
- 226-830011-03_LightPoleSteelMastArm.pdf
- 226-830016-03_LightPoleSteelDavitArm.pdf
- 226-830021-03_LightPoleSteelTenonTop.pdf
- 226-830026-01_TemporaryRoadwayLighting.pdf
- 226-835001-01_LightTower.pdf
- 226-836001-04_LightPoleFoundation.pdf
- 226-836011-02_LightPoleFoundationWith44inConcBarrier.pdf
- 226-837001-05_LightTowerFoundation.pdf
- 226-838001-01_BreakawayDevices.pdf
- 226-857001-01_StdPhaseDesignationDiagrams&PhaseSeq.pdf
- 226-857006-01_SupervisedRRInterconnectCircuit.pdf
- 226-862001-01_UPS.pdf
- 226-873001-02_TrafSignalGround&Bond.pdf
- 226-876001-04_PedestrianPushButtonPost.pdf
- 226-877001-08_SteelMastArmAssembly&Pole16'thru55'.pdf
- 226-877002-04_SteelMastArmAssembly&Pole56'thru75'.pdf
- 226-877006-06_SteelMastArmAssembly&PoleWithDualMastarms.pdf
- 226-877011-10_SteelComboMastArmAssembly&Pole16'thru55'.pdf
- 226-877012-07_SteelComboMastArmAssembly&Pole56'thru75'.pdf
- 226-878001-11_ConcreteFoundationDetails.pdf
- 226-880001-01_SpanWireMountSignals&FlashBeaconInstall.pdf
- 226-880006-01_TrfSignalMountDetails-Post&BracketMount.pdf
- 226-886001-01_DetectorLoopInstallations.pdf
- 226-886006-01_TypicalLayoutsForDetectionLoops.pdf
- 226-BLR10-8_PCCPvmtSpecial-NonReinf.pdf
- 226-BLR14-13_PCCPvmt-NonReinf.pdf
- 226-BLR17-4_TrafCntrlDevices-DayLaborConstr.pdf
- 226-BLR18-6_TrafCntrlDevices-DayLaborMaint.pdf
- 226-BLR20-7_TrafBarrierTermType5R.pdf
- 226-BLR21-9_TypAppTrafCntrlDevices-ConstrOnRuralLocalHwys.pdf
- 226-BLR22-7_TypAppTrafCntrlDevices-ConstrOnRuralLocalHwys(2L2W-RdClsdToThruTraf).pdf
- 226-BLR23-4_TrafBarrierTermType1.pdf
- 226-BLR24-2_MailboxTurn-LocalRds.pdf
- 226-BLR25-1_Type1ABarrForNonNHSRts.pdf
- 226-BLR26-3_SteelPlateBeemGR29inchHt.pdf
- 226-BLR27-1_TrafBarTermType5A.pdf
- 226-BLR28-1_ConcreteCurbTypeBandCombinationConcreteCurbandGutter.pdf
Individual CADD files (Microstation .dgn format) of the Highway Standards are available upon request. To submit a request, send an e-mail to DOT.HwyStds@illinois.gov
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Contact Us
Illinois Department of Transportation
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2300 S. Dirksen Parkway
Springfield, IL 62764
(217) 782-7820 or TTY (866) 273-3681