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ENGINEERMANUAL EM1110-3-152April1984ENGINEERINGANDDESIGNRAILROADSMOBILIZATIONCONSTRUCTIONDEPARTMENTOFTHEARMYCORPSOFENGINEERSOFFICEOFTHECHIEFOFENGINEERSDEPARTMENTOFTHEARMY EM1110-3-152U.S.ArmyCorpsofEngineersDAEN-ECE-G Washington,D.C.20314EngineerManualNo.1110-3-152EngineeringandDesignRAILROADSMobilizationConstruction1. Purpose. ThismanualprovidesguidanceforthedesignandconstructionofrailroadfacilitiesatU.S.Armymobilizationinstallations.2. Applicability. Thismanualisapplicabletoallfieldoperatingactivitieshavingmobilizationconstructionresponsibilities.3.Discussion.Criteriaandstandardspresentedhereinapplytoconstructionconsideredcrucialtoamobilizationeffort. Theserequirementsmaybealteredwhennecessarytosatisfyspecialconditionsonthebasisofgoodengineeringpracticeconsistentwiththenatureoftheconstruction.Designandconstructionofmobilizationfacilitiesmustbecompletedwithin180daysfromthedatenoticetoproceedisgivenwiththeprojectedlifeexpectancyoffiveyears.Hence,rapidconstructionofafacilityshouldbereflectedinitsdesign. Time-consumingmethodsandprocedures,normallypreferredoverquickermethodsforbetterquality,shouldbede-emphasized. Lessergradematerialsshouldbesubstitutedforhighergradematerialswhenthelessergradematerialswouldprovidesatisfactoryserviceandwhenuseofhighergradematerialswouldextendconstructiontime. Workitemsnotimmediatelynecessaryfortheadequatefunctioningofthefacilityshouldbedeferreduntilsuchtimeastheycanbecompletedwithoutdelayingthemobilizationeffort.FORTHECOMMANDER:PAULF.ColoneY,ChiefoftitANAUGHCorpsofEngineersStaff9April1984EngineerManualNo.1110-3-152,DEPARTMENTOFTHEARMY EM1110-3-152U.S.ArmyCorpsofEngineersWashington,D.C.20134EngineeringandDesignRAILROADSMobilizationConstruction9April1984ParagraphPageCHAPTER1.GENERALPurposeandscope.............1-11-1Basisofdesign...............1-21-1Description....................1-31-1Designprocedure.............,.1-41-1Stateregulations..............1-51-1CHAPTER2.TRACKDESIGNTracklayouts...........,.......2-12-1Rail.......................2-22-1Woodties.....................2-32-2Railaccessories................2-42-2Ballast......................2-52-3Railroadlayoutdata............2-62-3CHAPTER3.GEOMETRICDESIGNCurvature.......................3-13-1Superelevation..................3-23-1Grades.........................3-33-2Clearances......................3-43-3CHAPTER4.DRAINAGERequirements....................4-14-1Sidedrainageditches...........4-24-1Interceptingditches............4-34-1Culverts........................4-44-1Lateraldrains.................4-54-1Pipedrains......,.............4-64-1CHAPTER5.MISCELLANEOUSTurnouts........................5-15-1Crossingfrogs.........,...,..5-25-1Structures......................5-35-1Trackscales....,...............5-45-1Guardrails.......................5-55-1EM1110-3-1529Apr84LISTOFFIGURESFigureA-1. BasicdataforstandardNo.8turnoutgage4feet8-1/2inches;froglength13feet.A-2. Railroadlayoutdata.A-2(a).Railroadlayoutdata.A-3. Crossoverbetweenparalleltracks.A-4. Layoutsforyardtracks.A-5. Railroadyardladders.LISTOFTABLESTable 3-1.Superelevationininches.A-1.Minimumtrackandoperatingmovement.A-2.Minimumtrackandoperatingmovement.A-3.Minimumtrackandoperatingmovement.A-4.Minimumtrackandoperatingmovement.A-5.Minimumtrackandoperatingmovement.A-6.Minimumtrackandoperatingmovement.A-7.Railroadyardladdersparalleltotracks.oncurves.A-8.Materialrequiredfor1,000feetoftrack.ParagraphPageAPPENDIXA.APPENDIXB.Highway-railwaygradecrossing..5-65-1Grounding.......................5-75-2RAILROADLAYOUTDESIGNA-1REFERENCESB-11-3.Description.CHAPTER1GENERALEM1110-3-1529Apr841-1.Purposeandscope.ThismanualprovidesguidancefordesignandconstructionofrailroadfacilitiesatArmymobilizationinstallations.1-2.Basisofdesign.TheAREAManualforRailwayEngineeringformsthebasisfordesign.Forworknotspecificallycoveredinthismanual,therecommendedpracticeofAREAoroftheservingrailroadwillbeused.a.Railroadconnections.Railroadconnectionsincludetheturnoutsfromtheservingrailroadandalltracktotheirright-of-wayline.b.Auxiliarytracks.Auxiliarytracksusedbytheservingrailroadincludepassingsidings,setoutorinterchangetracks,andwyes.c.Accessline.Wheretheprojectisnotadjacenttotheservingrailroad,theaccesslineisthetrackbetweenright-of-wayoftheservingrailroadandthefacilitiestobeserved.d.Tracksfordeliveryofconstructionmaterials.Deliverytracksforconstructionmaterialsshouldbeprovidedbythecontractororservingrailroadunlessthetrackslaterbecomeapartoftheprojecttrackage.Theconstructionofprojecttrackageduringtheearlyphasesofprojectconstructionwillexpeditedeliveryofconstructionmaterialsforotherphasesoftheproject.e.Projecttrackage.Projecttrackageincludesalltracks,otherthanthoselistedabove,withintheproject.1-4.Designprocedure.Maximumcurvaturesandgradeswillnotexceedthosediscussedinchapter3.1-5. Stateregulations. Designwillconformwithregulationsofstatecommissionsandregulatorybodiesforpublichighwaycrossings.2-2.Rail.CHAPTER2TRACKDESIGNEM1110-3-1529Apr842-1.Tracklayouts.Tracklayoutsshouldallowthemovementtobecontinuousfromtheinterchangeyardt