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HomeMy WebLinkAboutAPA4008PreparedFor:PreparedBy:SUSITNAHYDROELECTRICPROJECTPLANOFSTUDYALASKAPOWERAUTHORITYandACRESAMERICAN,INCORPORATEDARLISAlaskaResourcesLibrary&InformationServicesAncl','.,c...1ska6•b.FEBRUARY1981Ii</42-5,S'i?A-2-3i't().!./IJIJ't,TASK2PROJECrACCESSSUBTASK2.10PRELIMINARyREPORTACCESSPLANR&MCONSULTANTS,INC.o1oooooooooooooJooo CONTENTSA.INTRODUCTIONB.PROJECTPARAMETERSC.CORRIDORSELECTIOND.PROJECTDESIGNDEVELOPMENTE.PROJECTSCHEDULEF.LOGISTICSG.ENVIRONMENTALISSUESH •ALTERNATIVEACCESSPLANSI.ANALYSISJ.RECOMMENDEDPLANPROPOSEDCORRIDORSALTERNATIVECOMPARISONPRELIMINARYDESIGNDEVELOPMENTMACROSCALEENVIRONMENTALCONCERNSPERTAININGTOACCESSPROPOSEDACCESSPLANARLISAlaskaResourcesLibrary&InformationServicesAneL."-.'-Liska- j -APPENDIXAAPPENDIXBAPPENDIXCAPPENDIXDAPPENDIXEroD.oooJooooooooooooo [Joooo1ooooooooooooSUSITNAHYDROELECTRICPROJECTPROJECTACCESSPRELIMINARYREPORTACCESSPLANA.INTRODUCTIONTheSusitnaHydroelectricProjecthas,formanyyears,beenconsideredaViableSourceof"clean"energyforCentralAlaska.TheprojecthasbeenviewedasincludingoneormoredamsontheupperSusitnaRiver.TheU.S.CorpsofEngineershasdoneextensivepreliminaryworkontheproject.Inanefforttoexpeditetheproject,theAlaskaPower·Authorityinlate1979selectedAcresAmerican,IncorporatedtoconductnecessaryfeasibilitystudiesandpreparethenecessaryFERClicenseapplication.Thelocationoftheprojectisabout150airmilesNorthofAnchorage.Thedams,asproposed,wouldbeupstreamfromTalkeetnalayingbetweentheParksHighwayandtheDenaliHighway.ThisareaisremotewithnoeXistingAccess.Thequantitiesofmaterialsandsuppliesrequiredforconstructionoftheprojectandforthemaintenanceoftheconstructioncampsareofsuchamagnitudeastorequiremajortransportationfacilitiestoservetheprojectsite.OneSubtaskoftheplanofstudyisthepreparationofanaccessplan.Thisplanwilldeterminethemostdesirablelocationforanaccessrouteandthemosteconomicaltransporationmodeormodalsplittoservetheprojectneeds.R&MConsultantshasbeenselectedasasubconsultanttoAcresAmerican,Incorporatedtopreparetheaccessstudy.or11/d- 1 - B.PROJECTPARAMETERSThethreealternateroutestobestudiedwererequiredtoaccomodatethefollowing:ThisreportisintendedtoserveasadetailedoutlineofthefinalaccessplantobepublishedaboutMay1,1981.Inordertobeabletomakeavalidcomparisonbetweenalterna-tivesabasisforthatcomparisonmustbeestablished,withthisthoughtinmind,proposeddesignciriteriaweredevelopedandsubmittedtoAcresAmerican.ThecriteriasubmittedareshowninTable1.- 2 -CorridorshadtobeincludedontheNorthandSouthsidesoftheSusitnaRiverwithconnectionstotheAlaskaRailroadnearGoldCreek,totheParksHighwayandtotheDenaliHighway.Servealldamsitesthatmightbeprovenfeasablebyotherportionsoftheoverallstudy.oor11/dTheplanofstudyfortheSusitnaProjectcallsfortheanalysisofthreegeneralroutesandtwotransportationmodestoprovideaccesstotheproposeddamsitesfromportfacilitiesorinstatesourcesofsupply.Considerationmustbegiventousingroad,railroadoracombinationofbothtoservetheproject.~l[]oooJooooooooooooo TABLE1ORIGINALPROPOSEDDESIGNCRITERIADesigncriteriasuchastheseareusedtoestablishgUidelinesfordesign.Thedesignernormallyattemptstoprovidehorizontalandverticalalignmentthatisbetterthanthemimimumalignmentsuchlimitswouldprovide.In·ordertomaintainascheduleandhavepossiblecorridorsidentifiedforphotographyIworkbeganonanumberofpossiblealignmentspriortoapprovaloftheproposedcriteria.Whilethecorridordefinitionworkwasinprogresscorre-s,?ondencewasreceivedaskingthatroadwaycriteriabeadoptedthatwouldessentiallyconformtoa50-60mileperhourdesignspeed.Therecommendeddesignparametersfortherailroadwereaccepted.LatercorrespondencefromAcresAmericanconfirmedroadwaydesigncriteriafor60mileperhourdesignspeed.Therelativelyhighroadwaydesignparametersarerequiredbecauseofthesizeandweightofcertaincomponentsofthedamsthatmustbemanufacturedandimportedtothesite.Therequiredpara-metersaregiveninTable2.oooJJJo]Joo,]oo[]ooooDesignSpeedMaximumGradeMaximumCurvatureDesignLoadingr11/d- 3 -Road30mph10%19°HS-20RailroadN/A2.5%10°E50 APPROVEDRAILROADDESIGNPARAMETERSTABLE2APPROVEDROADWAYDESIGNPARAMETERSTheSustinaHydroelectricProjectislocatedonasectionoftheSusitnaRiverthatisremote'wilderness.Earlierstudiesbygovernmentagencieshadgeneratedsomecontourmappinginthevicinityoftheproposeddamsites.TheonlyotheravailablecontourinformationwasUSGSmappingonaone-inch(1")equalsone(1)milescalewithone-hundredfoot(100')contourintervals.Toaidtheprojectteamin'selectingpossibleroutesalowlevelhelicopterflightwasmadeinlateMarch,1980.AmosaicwasthenmadeoftheUSGSmappingfromGoldCreekandtheParksHighwaythroughtheWatanasiteandouttotheDenaliHighwaynorthofWatana.Usingthepreliminarydesignparametersandinformationgainedfromtheoverflightoftheprojectarea,anumberofpossiblealignmentswerelaidoutonthemapmosaic.C.CORRIDORSELECTION2.5%10°E-50.*60mph6%5°80KipAxle&200KiptotalHS-20thatthecurrentsystemloadsuggesteddesignloadingof- 4 -MaximumGradeMaximumCurvatureLoadingDesignSpeedMaximumGradeMaximumCurvatureDesignLoading(ConstructionPeriod)DesignLoading(AfterConstruction)r11/d*TheAlaskaRailroadhasindicatedratingisE-SO.TheRailroadhasE-72.oooooJooooJoooooooo Forthepurposeofanalysistheproposedgeneralcorridorsareidentifiedasfollows:OnMay15,1980theproposedcorri.doralignmentswerepresentedtorepresentativesofAcresAmerican.Photographicflightsoftheproposedcorridorswereapprovedatthatmeeting.Thevariousalternativesweresplitintoconvienentsegments.Someofthesesegmentswereuniquewhileotherscouldbecommontotwo(2)ormorealternatives.Eachsegmentwasanalizedforgradesonasectionbysectionbasis.Eachcurvewascheckedfordegreeofcurveanddeflectionangle.Eachcurveandeachidenti-fiablegradientsectionwerethentabulated.Thevarioussegmentsconsideredwerecombinedtoprovideatotalofthirty-three(33)possiblealignmentalternativesthatcouldconceivablybeconstructedtoprovideaccesstooneorbothoftheprincipledamsites.TheprincipledamsiteswereidentifiedintheearlystagesofthestudyasDevilsCanyonandWatana.Thevariouscom-binationofsegmentsmakinguppotentialaccessrouteswerecom-pared.Thealignmentidentifiedasbeingthemostattractivewithineachofthethree(3)generalcorridorsrequiredbytheplanofstudywasselectedforfurtherwork.Alowlevelrecon-naissanceflightwithpartoftheenvironmentalteamwasmadeApril30,1980toreviewtheproposedcorridoralignmentspriortothephotographicflights.Valuableinputforfutureanlalysiswasgained,andtherewasnothingidentifedthatwouldforceamajorlinechangeatthisearlystageofthework.JoJooJoooooooooooooCorridor1Corridor2r11/dOnthenorthsideoftheSusitnaRiverbetweentheParksHighwayandtheWatanaDamsite.OnthesouthsideoftheSusitnaRiverbetweentheParksHighwayandWatanaDamsite.- 5 - 1.Corridor1Anumberofalternativesegmentswereconsideredwithineachofthesethree(3)generalcorridors.ThealternativesegmentswithintherespectivecorridorsarediscussedbelowandshowninAppendixA.a.Alternativel-AThisalternativebeginsatWatanaCamp,andthenproceedsnort.htoacrossingofTsusena-Creek.AfterleavingTsusenaCreekthelineproceedsthroughapassatfour-thousandfoot(4000')elevationintotheupperreachesofDevilsCreek.AsthelineleavesDevilsCreekitfollowsthesideslopearoundjusttothenorthofHighLakewhilegraduallydroppinginelevationandreachesthebluffsatDevilsCanyonveryneartheDevilsCanyonDamsite.FromDevilsCanyonDamsitethelinetraversesaroundintothePortageCreekdrainageand,aftercrossingPortageCreekparrallelsanexistingfourwheeldrivingtrailtoacrossingoftheAlaskaRailroadatCh'ulitnaPassandontotheParksHighway.JoJJoJoooooJJooooooCorridor3rll/dConnectingWatanaDamsitewiththeDenaliHighwaytothenorth.Thisalternatecrossesthehighestgroundatjustoverfour-thousandfoot(4000')elevationneartheheadofDevilsCreek.Throughvarioussectionsitalsocrossessomeofthemostdifficultterrainofanyrouteinvestigated,particularlyincrossingPortageCreek.TheentiresectionfromjustaboveDevilsCanyonacrossPortageCreekandouttothevicinityofthecabinsonthewestsideofPortageCreekissidehillconstructioninverysteepandbrokenterrain.-6 - oo[]oooooooooooooooob.r11/dPreliminarygradesaregenerallywithincriteriaexceptforafewshortsections.ApreliminarycheckindicatesthatthegradeproblemsshouldbesolvablewithminoradjustmentsofthelineandsomeheavyealOthwork.Alternative1-Ahasanumberofcurvesthatexceedthedesireddegreeofcurveparameter.Asstatedabovethislinetraversessomeverydifficultterrain,intheDevilsCanyonthroughPortageCreeksection.Becauseofthisitmaybedifficulttoeliminateallofthetightcurveproblemswithoutofcostlyconstruction.Alternative1-BisanalternatesegmentinCorridor1beginningatpoint6onsheet6andrejoining1-Aatpoint4onsheet4ofAppendixA.ThisalternatesegmentutilizesapassintoDevilsCreekimmediatleysouthofthepassusedbyalternate1-A.Thepassutilizedmakesitpossibletoholdthehighpointofthelinetojustoverthree-thousandfour-hundredfoot(3400')elevation.Asoriginallylaidout1-Bhasabouttwo-thousandfeet(2000')thatexceedthesixpercent(6%)gradeparameter.Theseareascanbeeliminatedduringrefinementofthealignment.Thereareafewcurvesonthisalternatethatexceedthefivedegree(5°)parameter.Theseinvolvedrainagecrossingswherechangesingradeandsomegradingworkwillenablethedesignertocomplywithapprovedguidelines.- 7 - oooooooooooooooo2.c.Alternate1-CisatotallynewlinebetweenWatanaDamsiteandalternate1-BatitscrossingofDevilsCreek(Seepoint5onsheet4ofAppendixA).ThisalternatefollowstheriverandwouldprovidewaterlevelaccesstothereservoirofDevilsCanyonDam.Thepreliminarylayoutincludesseveralrelativelyshortsectionsthatexceedthedesiredmaximumgrade.Afewofthesegradeproblemsmaybeeleminatedbyrefiningtheline,howeveritmaynotbepossibletoeliminateallofthesteepersections.Alternate1-Cincludesatleastthree(3)curvesthatwouldbedifficultandcostlytoflattenenoughtocomplywiththedesiredcriteria.Alternate1-Cisthelongestofthethree(3)linesbetweenWatanaandDevilsCreekandwouldrequireatleastthree(3)bridges.d.Alternate1-0isanalternativecrossingofPortageCreekthatusesswitchbacksandrelativelysteepgradestoshortenthestreamcrossing.(Seepoint2onsheet5topoint3onsheet4ofAppendixA.)Athirty(30)mileperhouralignmentispossiblebutnothingbetter.Thissegmentiseffectivelyeliminatedforthisreason.Corridor2oooa.r11/dAlternate2-AbeginsatWatanaDamsiteonthesouthsideoftheriver.ThelineproceedssoutherlypastthewestendofFogLakesandacrossFogCreektothe- 8 - JooooJooooooooooooonorthendofStephanLakewithgoodlineandgrade.ThelineclimbstowardthehighgroundwestofStephanLakeatacomfortablegradetothetopofthePrairieCreekdrainage.(Seepoint15sheet10ofAppendixA.)Fromtheretheroadstaysonthehighgroundatelevationsofaboutthree-thousandfour-hundredfeet(3400')toapointimmediatleysouthofVABMCHUNILA(Seesheet8ofAppendixA)withgoodlineandgrade.FromthatpointthelinedecendsviasteepgradeandverytightswitchbackstotheRailroadatSherman.Thislineisapproximatelyfifty-sixpointsixmiles(56.6)inlength.Gradesforthemostpartareacceptableonthealtermate2-AwiththeexceptionoftheclimbfromShermanthroughtheswitchbacks.Itwillbedifficulttoimprovesignifcantlyonthatsection.Anotherproblemwith2-Athatmustbeconsideredisthatanine(9)mileplusspurmustbeconstructedtoserveDevilsCanyonDam.Thisspurisalternate2-Candapartof2-B.(SeeSheet9ofAppendixA.)b.Alternate2-Bbeginsas2-AflattensoutafterclimbingoutoftheStephanLakebasin.(Seepoint15onsheet10ofAppendixA).Thissegmenttravelsnortherlyalongthetopedgeofadeepnarrowdrainageforaboutsix(6)miles(seepoint13sheet10AppendixA)whereitturnswesterlyandcrossesintoanddesendsanunnameddrainagetoDevilsCanyonDamsitewhereitcanconnectwith2-1.Muchofalternate2-Bexceedsacceptablegradesandseveralcurvesexceedtheacceptabledegreeofcurve.Thiswouldbeathirty(30)mileperhoursegmentwithoutquestionandthesegmentwouldincludeone(1)majorbridge.r11/d- 9 - ]]]]o]oJoooDooDooooc.Alternate2-Cisthesegmentthatconnects2-Awith2-Baboutthree(3)milessouthofDevilsCanyon.(SeePoint11and12Sheet9AppendixA.)Thesectionissix(6)mileslongandamajorpartexceedsgradecriteria.Thelinehasgoodhorizontalalignmentbutgradesmakethisalternateveryquestionable.d.Alternate2-Disasegmentthatconnects2-AatShermanwiththeParksHighwaybyapassthroughtheridgeonthewestsideoftheSusitnaRiver.Thesegmentwouldrequireamajorbridgeandacrossingofthemainlinerailroad.Thissegmentcancompletelysatifsydesiredcriteria.(SeeSheet7ofAppendixA.)e.Alternate2-EisasegmentthatbeginsatShermanandgoesnorthessentiallyparrallaltothemainlinerailroadtoconnectwith1-AatChulitna.ThissegmentwasaddressedinordertoprovidealternativepointsofconnectionwiththeParksHighwayshouldsomealternatewithincorridor2beultimatelyselected.Onlyaportionofthissegmentwouldbeused.Amajorriverbridgemayberequireddependingonwhatportionofthesegmentmaybeused.(Point7sheet7topoint1sheet2ofAppendixA.)Thegradescanbekeptwithindesiredlimitswithsomeheavygradingintwo(2)shortsections.Thehoizontalalignmentiswithincriteria.r11/d-10- f.Alternate2-FisasegmentthatwouldprovideforashorterroadwaycrossingofFogCreek.Thesegmentconnectswith2-Aonbothendsandwouldrequireahighbridge.approximatelyfive-hundredfiftyfeet(550')longoverFogCreek.(Point20to23sheet12ofAppendixA.)Gradesaregoodthroughoutthesegment.One(1)curveasshownistootight.Thecurvecouldbebroughtintoconformancebyskewingthebridgeacrossthecreekandsomegradingworkonthebridgeapproaches.g.Alternative2-Gisasegmentintendedtoconnect2-B'with2-1atDevilsCanyonDamsitebyessentiallyparallelingtherailroadline2-R.(Point12sheet10topoint10sheet9ofAppendixA.)2-Gbeginsaboutfive-hundredfeet(500')inelevationabove2-Rthenparallelstherailline2-Ratasomewhatsteepergradienttoconnectwith2-1atDevilsCanyonDamsite.Thissegmentislocatedinsomedifficultterrain.Someheavycutsandfillswillberequiredandatleastone(1)majorbridgewillberequiredacrossthesidedrainagejustupstreamfromDevilsCanyonDamsite.0~J000.'J0J00000000[J00h.rl1/dAlternate2-HisasegmentofroadwaythatgoesupoverasmallbluffjustupriverfromthepresentrailroadbridgeatGoldCreektoavoidsomedifficultconstructiongoingaroundthefaceofthebluff.Bothgradeandalignmentcriteriacanbesatisfied.Thissegmentisshownconnectingwith2-Eintwodifferentways.ThisistoindicatewhatmightberequiredforconnectingwithParksHighwayusingeither1-Aor2-D.-11- 3.Corridor3i.Alternate2-1isaroadwayfollowingexactlyontherailroadalignment2-RfromDevilsCanyonDamsiteto2-HjustaboveGoldCreek.(Point10sheet9topoint9sheet8ofAppendixA.)Alldesigncriteriafortheroadwayaresatisfied.j.Alternate2-RistherailroadalignmentbetweenGoldCreekandWatanaDamsiteonthesouthsideoftheriver.Theraillineiswithincriteriatheentirelength.Themaximumcurvatureisabouteightdegrees(8°)andtherulinggradeisabouttwopointthreepercent(2.3%).ThemostdifficultterrainisfromDevilsCanyonDamtotheStephanLakebasindivide.One(1)majorbridgewillberequirednearDevilsCanyonandone(1)ormoreminorbridgesareIikely.Thereisasix(6)milesectionononesideofanorth-southdrainagethatwillbefullbenchcutinrockandmayrequiresnowshedstokeepthetracksopeninwinter(seesheet10).ThislineappearstobetheonlyfeasiblepossibilityforrailaccessfromGoldCreektoWatana.JJJJJJJJooJoLJoo[JJoJa.r11/dAlternate3-AbeginsatWatanaDamsiteandproceedsnortheastupthewestsideofDeadmanCreekthenthroughasaddleintotheupperButteCreekdrainageandalongthewestshoreofButteLaketotheDenaliHighway.Thisalternateistheshortestconnectiontoanexistinghighway.Onlytwo(2)shortsectionsthatexceedfourpercent(4%)grade.Thesharpestcurveonthepreliminarylineissixdegrees(6°).-12- r11/d-13-ThetabulationofthiscomparsionisincludedinAppendixB.ForCorridor1.ParksHighwaytoWatanaDamsite-NorthsideUsecombination2,Segments1-Aand1-BThealternativesidentifiedasbeingmostfavorablebasedonlength,alignmentandgradeareasfollows:Overalllengthtobeconstructed;Averagegrade;Averagedeflectionpermile.°°°OverallLength64.9MilesAverageGrade2.4%DeflectionPerMile7°06'±b.Alternate3-Bcoincideswith3-AfromWatanaDamsitetothefirstcrossingofDeadmanCreekaboutfivepointfive(5.5)milesnortheastofthedamsite(seepoint22onsheet13ofAppendixA).ThisalternatethenproceedseasterlyintotheWatanaCreekdrainageandthennortheasterlythroughasaddleintothelowerendofButteCreekdrainage.ThelinetraversesthewestsideoftheButteCreekvalleypassingwestofSnodgrassLakeandconnectingwiththeDenaliHighwayneartheSusitnaRiverBridge.Thisalternateisslightlylongerthan3-Aandotherwisemeetsalldesignparameters.Withthevarioussegmentsidentifiedandestimatesmadeofgradesqndcurvatureatotalofthirty-three(33)combinationswerede-velopedandcompared.Thecriteriausedtocomparethealter-nativecombinationsareasfollows:olJJooJJoooooooooooo ThislinewillbeidentifiedasAlternateRinfurtherstudies.ThisCorridorwillbeidentifiedasAlternateAinfurtherstudies.ThisCorridorwillbeidentifiedasAlternateBinfurtherstudies.58Miles1.5%39.1Miles66.5Miles2.2%~4.o50o±-14-OverallLengthAverageGradeDeflectionPerMileOverallLengthAverageGradeDeflectionPerMile.OverallLengthAverageGradeDeflectionPerMiler11/dForCorridor3.WatanaDamtoDenaliHighwayUsecombination10-Segment3-AForRaiIroad.Use2-RonthesouthsideoftheriverfromGoldCreektoWatanaDamsite.ThiscloselyfollowsthepreferredroadalignmentforCorridor2.ForCorridor2.ParksHighwaytoWatanaDamSite-SouthSide,~UseCombination33,Segments2-A;2-F;2-B;2-G;2-Hi2-Ei2-1ThisCorridorwillbeidentifiedasAlternateCinfurtherstudies.JJ[][]J[]JJJJooooo[]ooo oooooooooLJoLJooooD.PROJECTDESIGNDEVELOPMENTTheSusitnaProjectiscurrentlyenvisionedastwodams.ThedamsbeingarockandearthfillstructureattheWatanaSiteandaconcretegravitydamattheDevilsCanyonSite.PreliminarylayoutsaresimilartothosedevelopedbythCorpsofEngineeristheir1979feosibilityreport.AppendixCshowstheCorpsofEngineerlayouts.Otherplansarestillunderconsiderationhowevertheimpactoftheotherplansonaccesswouldbesmall.E.PROJECTSCHEDULETheprojectschedule,ascurrentlyplanned,callsforbeginningconstructionoftheWatanadamsitein1985withpoweronlinein1993.WorkwouldthenshiftimmediatelytotheDevilsCanyonsitewithpoweronlineprojectedfortheyear2000.TheFERClicenseapplicationisscheduledforsubmissioninJune1982.DesignofthefacilitiesforWatanashouldproceedconcurrentlywithFERCreview.InthiswayinitialmobilizationtoWatanacouldbemadeviaasnowroadduringthewinterof1984/1985.Thiswillallowworktobeginonthedeversiontunnelsearlyin1985.Constructionoftheaccessshouldbeginasearlyaspossible.Accessconstructioncouldtakeanywherefromonetofouryearstobuilddependingonwhichplanisselectedandthefinalprojectschedule.Inanycaseitwillbenecessarytomoveequipmentandsuppliesinlargequantitiesduring1985constructionseason.ooor11/d-15- ]]]]oJoooooooooooF.LOGISTICSThedamsandassociatedfacilitiesareofasizetherequirevastquantitiesofequipmentMaterialsSuppliesandpeopleforconstruction.Becauseoftheremotelocationabasecampmustbeprovided'thatwillresembleasmalltowncompletewithallessentialservices.1.ConstructionTheaccessfacilitywillbeamajortransporationlinkbetweentheexistingtransportationsystemandtheproject.Assuchitwillbeamajorconstructionprojectinitself,inaddition,afullscalemaintenanceprogramwillberequiredtokeeptheaccessfacilitiesingoodconditionsothattheflowofessentialmaterialswillnotbeundulydisrupted.Majoritemsofworkforthedamincludethefollowing:CommonExcavation28,400,000C.Y.1,440,000C.Y.RockExcavation60,680,000C.Y.1,355,000C.Y.,Concrete425,000C.Y2,547,000C.Y.Cement188,300,000Lb.793,220,000Lb.ReinforcingSteel41,152,000Lb.29,981,000Lb.Misc.Steel44,694,000Lb.34,293,000Lb.oor11/d-16- Theprimarymaterialsforeachdaminclude:Inordertoestimatequantitiesoffuel,tiresandpartsrequiredateach·siteestimatesofequipmentfleetswithaverageunitfuelconsumptionfiguresweremade.Thosefiguresareshownbelow:DieselFuelGasolineTiresandEquipmentPartsCementReinforcingSteelStructuralSteelInadditiontherewillbemanymanyitemsneededinlesserquantitiesincludingthelargespecialtypiecessuchastransformersandgeneratorsforeachdam.Foracomparisonoftransportationcostsonlytheeasilyidentifiedmajoritemswillbeused.Theseitemswillaccuratelyidentifyrelativedifferencesintransportationcostswhenreviewingalternativeplans.-17-r11/dFuelPer.Unit#UnitsEquipment1gallon/hr.)WatanaDevilsCanyon40C.YEnt.Dump2140158C.Y.Loaders15.5106MotorPatrol(cat.14)6.586D-9173010D-78105Cranes1024RockCrusher2012ScreeningPlant1012ConcretePlant1015MixerTrucks1033ForkLifts566DumpTrucks10106Miscellaneous72020Pickupand26060otherGasolineVehiclesJJJJJJJoooooooooooo WEEKLYDIESELFUELREQUIREMENTSFORCONSTRUCTIONASSUME24HOURPERDAYAND7DAYPERWEEKEquipmentWatana-DevilsCanyonTypegallons/week gallons/week*EndDumps94,08025,280*Loaders18,22810,416MotorPatrols6,5524,368D-957,12019,040D-78,9604,480Cranes2,2404,480Crushers2,2404,480ScreaningPlant1,1202,240ConcretePlant1,1205,600MixerTrucks3,3603,360ForkLifts3,3603,360DumpTrucks11,2006,720MiscellaneousVehicles15,68015,680TotalGallonsperweek225,260119,504*Assume~downforservicea.ndmaintenance.JJJJDooJJooooooooooTruckLoads@7,500Gal./loadRailCar-20,000Gal/loadGasolineTruckLoads@7,500GaL/loadRailCarLoads@20,000Gal./loadr11/d30Loads/wk.11Loads/wk.20,160Gal./wk.2.69Loads/wk.1.01Cars/wk.-18-16Loads/wk.6Loads/wk.20,160GaL/wk.2.69Loads/wk.1.01Cars/wk. JJJJoJooooooooCementWatanaDevilCanyonTimeRequirement7yrs.6yrs.Quantity94,150ton396,600tonQuantityperweek258.65ton/wk.1271.15ton/wk.Truck@30ton/load8.6trucks42.4truck/wk.Carloads"@75ton3.5Cars/wk.16.9Car/wk.Steel(all)42,923ton32,137tonQuantityperwk.117.9ton/wk.103ton/wk.Truck@30ton3.9Truck/wk.3.4Load/wk.CarLoads@75ton1.6Loads/wk.1.4Load/wk.TiresandMainteance2Truck/wk.2Truck/wk.SubtotalTrucks/wk.47.266.5SubtotalRailCars/wk.18.126.3,',Suppliesandfuelforthebasecampmustflowsteadilyandsmoothly.Theconstructioncamppopulationisestimatedat1100people.Forthepurposesofthisreportitisassumedthateachpersonwillrequireapproximatelytenpoundsoffoodandsupplies,exclusiveoffuel,daily.Fuelconsumptionforpowerandheatareassummedtobetheequivalentof50gallonsofdieselfuelperhour.Thesefigureconverttothefollowingdeliveryrates:CampSuppliesTruckLoads@30toneach=1.3trucksperweekRailCars@75toneach=0.5carsperweekoooo1100persons2000lb.x10lb.person,xton=5.5ton/dayor11/d-19- JooooJooooooCampFuel50gallonsperhour=8,400gallonsperweekTruckLoad@7,500gallons=1.12loadsperweekRailcar·Ioad@20,000gallons=0.42loadsperweekPRIMARYDELIVERIESALLMATERIALSWatanaDamDevilsCanyonDamTrucks49.6trucks68.9Contingency&Misc.10.414.1Total60.0trucksperweek83.0trucksRailCars1927.2Contingency4.5.8Total23carsperweek33.0carsperweek2.ConstructionCampLocationThefinaldecisionsonthenumberandlocationofconstructioncampshasnotbeenmadeasofthistimeforthepurposedofanalysisitwillbeassumedthatacampwillbeprovidedneartheWatanaSiteandthatasactiviitiesdecreaseofWatanaandThefiguresusedhereinareinte(1dedonlyaspreliminaryestimatestobeusedindemonstratingtheorderofmagnitudeofthelogisticrequirements.Thesefigureswillbeusedinthecostcomparisonsforthevariousalternativestobeconsidered.DDoDoDor11/d-20- G.ENVIRONMENTALISSUESEnvironmentalissuespertainingtoallaspectsoftheSusitnaProjectarebeingadressedbyAcresAmericanthroughanotherSubconsultant,TerrestrialEnvironmentalSpecialists,Inc.,(TES).TEShasbeeninvolvedintheaccessplanningandwillcontinuetobeinvolvedtoinsurethatpotentialenvironmentalconflictsareidentifiedandgivenproperattention.RepresentitivesforTESwereincludedinalowlevelaerialreconnaissanceofthegeneralcorridorsinApril1980.InNovember1980theaccessplanningwaspresentedtoTESandarequestforMacro-Scaleinputmade.ThatinputwasavailableinearlyFebruary1981andisincludedinAppendixDofthisreport.Thisinputwillbeconsideredincomparingalternativeaccessplans.JJoooooooooooooooo3.increaseatDevilsCanyontheWatanaCampwillberelocatedtoDevilsCanyon.Thedifferenceincosttothetotalprojectbetweentheassumptionmadeandothercampalternativesisconsideredquitesmall.AccessConstructionThelogisticrequirementsofaccessconstructionwillnotbeconsideredseparatelyastheyareincludedintheestimatedconstructioncostoutlinedbelow.Againthemagnitudeofthesecostsarequitesmallincomparisontothetotalprojectandshouldnotseriouslyimpactthemajordecisions.[Jr11/d-21- JJoJJJJooooooooooH.ALTERNATIVEACCESSPLANSThefinalAccessplanmustprovidethemosteconomicalmethodofservingthelogisticsrequirementsoftheproject,_includingcon-structionschedule,provideafacilitycanservetheultimaterecreationalusesfollowingconstruction,provideformaintananceofthefacilitiesandcontrolorminimizetheimpactontheenviron-ment.1.AvailablePortsItisagiventhatmuchofthematerialsrequiredfortheprojectmustcomefromoutsideofAlaska.FuelandLubricantsareavailableinAlaska.Atthistimenearlyeverythingelsemustbeimportedviashipor.barge.Theseaportsorpointsthroughwhichmaterialsmightfloware:aAnchorageaSewardaWhittieraValdezaFairbanks(forfuelonly)Theaccessplansmustincludetheportsthroughwhichmaterialsshouldflow.Forcomparisonpurposesshippingratesthroughthepossibleportswererequested.o[Jr11/d-22- 2.SurfaceTransportationModalAlternates*Frompriceper100Lb.ratesquotedbyARR.**OnerateforallquotedbyGoldStreakTruckLinesincluding16%fuelsurcharge.*QuotedbyPacificWestern.*"1<Informationnotreceived-EstimatedequaltoAnchorge.***Informationnotr~cieved-RailBargeOperation-RatesEstimatedof75%ofAnchoragebecauseofreducedhandling.**1'*Ratesforfuelincludedinmodelalternatesection.Therearetwoobviousmodesoftransportationavailabletoservetheproject,TruckandRail.Theprojectmaybeservedbyeitheroneoracombinationofboth.Inordertocomparethetwomodestherespectiveratesarepresentedinton-milefigures.Inthiswaylengthofhaulmaybeconsideredintheanalysis.-23-FREIGHTRATESIN$/TON-MILEItemRail*Truck**Steel0.25770.2412Cement0.12750.2412Fuel0.14500.2412Other0.12620.2412r11/dCostin$/TonMaterial*To**To***To*ToFromSeattleAnchorageSewardWhittierValdezReinforcingSteel72.0072.0054.0086.00StructuralSteel85.4085.4064.00125.00Cement66.0066.0049.6080.00Other80.0080.0060.00110.00JJo]oJJJJoooL]oooooo 3.AlternativeAccessRoutesThemodalalternatesthatseemmostprobableincludethefollowing:TothispointthreealterativeCorridorshavebeendefined.Estimateshavebeenmadeoftheamountsofmaterialsrequiredateachsiteandfreighthandlingcostshavebeenidentifiedfortheavailabletransportationmodesandports.Thethreemajorcostspertainingtoaccessarelogistics,constructionandmaintenance.Estimatedconstructioncostsareoutlinedbelow.Maintenancecostswillnotbeestimatedindetail.Instead,anestimateoftherelativedifferenceindifficultyof.maintenancewillbeappliedtoanaverageassumedmaintenancefigureof$10,000permileperyear.RailtoGoldCreekorCantwellandtruckfromtherailheadtothesite.1.01.01.21.01.4MaintenanceFactor-24-ParksHighwaytoGoldCreekParksHighwaytoPortageCreekPortageCreek-DevilsCanyonSectionDevilsCanyon-WatanaGoldCreektoDevilsCanyonRailfromporttothesite.Truckfromporttothesite.oo• 0A-1A-2B-2B-1r11/dJJJJJJJJooooo'0o'0ooo SegmentThealternatesegmentsforfollows:corridorsidentifiedhere-inaresplitintofurtheranalysis.Thosesegmentsareas-25-1.31.00.80.50.70.6MaintenanceFactorDescriptionParksHighwaytoDevilsCanyonDevilsCanyontoWatanaParksHighwaytoGoldCreekGoldCreektoDevilsCanyonDevilsCanyon'toWatanaDenaliHighwaytoWatanaGoldCreektoDevilsCanyonDevilsCanyontoWatanaSectionDenaliHighwaytoWatanaDevilsCanyontoStephanLakeStephanLaketoFogCreekGoldCreektoDevilsCanyonGoldCreektoStephanLakeStephanLaketoWatanaA-1A-2B-1B-2B-3CR-1R-2CB-3R-1R-2r11/doooJoJJoJoooJJooooo JJJJoJoJoJoooooooour11/dESTIMATEDCONSTRUCTIONCOSTS-26- JD0SEGMENTB-2DExcavation735,000c.y.@$4.75$3,491,250Drainage7,600L.F.@$50.00380,000Base64,500c.y.@$12.00774,000Surfacing195,000s.y.@$25.004,875,0000GuardRail10,000L.F.@$30.00300,000Contingency25%2,454,750J$12,275,000SEGMENTB-30Excavation2,125,000c.y.@$5.10$10,837,500Drainage23,520L.F.@$50.001,176,0000Base208,000c.y.@$12.002,496,000Surfacing622,000s.y.@$25.0015,550,000GuardRail15,000L.F.@$30.00450,0000BridgesLumpSum8,500,000Contingency25%9,752,500$48,762,0000SEGMENTC0Excavation2,125,000c.y.@$5.10$10,837,500Drainage20,000L.F.@$50.001,000,000Base230,000c.y.@$12.002,760,0000Surfacing687,000s.y.@$25.0017,175,000GuardRail20,000L.F.@$30.00600,000Contingency25%8,093,5000$40,466,0000SEGMENTR-1Excavation500,000c.y.@$4.75$2,375,0000Drainage8,100L.F.@$60.00486,000Ballast&Rails85,000L.F.@$1008,500,000Contingency25%2,850,0000$14,211,000000r11/d-27- ThisplanutilizesroadwayfromtheParkHighwaytoWatanaDamviaAlternateAalongtheNorthsideoftheRiver.MaterialssuchascementandsteelshouldentertheStatethroughWhittieronrailcars.FoodandothercampsuppliesthroughAnchorageviacontainer.FuelshouldcomefromKenaitoAnchorageviaexistingpipeline.AllmaterialsandsupplieswouldbecarriedbyrailtoarailheadatHuricane.AtHuricanematerialswouldbetransferedtotrucksfortransporttothesite.AnalternateforfuelcouldberailhaulfromtherefineryatNorthPole,.Alaska.ConstructionCostsLogisticCostsMaintenanceD']JoD']J']oooooooSEGMENTR-2ExcavationDrainageBallast&RailsBridgesContingency25%1.Plan12.Plan21,125,000c.y_@$5.8021,000L.F.@$60.00198,000L.F.@$100.00LumpSum$83,019,00079,219,7818,200,000$170,438,781$6,525,0001,260,00019,800,00010,000,0009,400,000$46,985,000ThisplanutilizesroadwayfromtheParksHighwaytoDamviaAlternateBalongtheSouthsideoftheMaterialhandlingwouldbethesameasforPlan1.oooor11/dConstructionCostsLogisticCostsMaintenance-28-$84,586,00077,747,6567,330,000$169,663,656WatanaRiver. jjJjJJoJ3.Plan3 -AllRailThisplanwouldservebothdamsitestotalbyarailline.SeeAlternateR.Thisalternatewouldpreciude-_publicaccess.TrainswouldbebrokenandcarsdroppedonthesidingatGoldCreek.AnengineandtraincrewwouldbestationedatGoldCreek.ThiscrewwouldshuttlecarsfromGoldCreektotheprojectsitedaily.PassengerservicewouldberequiredfromalargeparkingareaatHurricanedaily.Ifpublicaccessisdesiredafterconstructiontherailscouldberemovedandtheroadbedgradedintoaonelaneroadwithturnouts.Costsshownbelowdonotincludethepassengermovementrequirementsasthatcouldbeabreakevenfarearrangement.Thisplanusesacombinationofrailandtruck.ConstructionofWatanaDamwouldbeservedfromarailheadatCantwellbytruckacrosstheDenalihighwayandalongAlternateC.ConstructionofDevilsCanyondamwouldbeservedbytruckfromarailheadatHurricane.Thisplandoesnotincludeaconnectionbetweenthetwodams.ooooooooo4.Plan4ConstructionCostsLogisticCostsMaintenanceConstructionCostsLogisticCostsMaintenance$61,196,00047,831,4243,020,000$112,047,424$76,290,00088,143,9987,494,000$171,927,998or11/d-29- Plan5ThisplanisidenticaltoPlan5exceptthataserviceroadformaintenancepurposeisincludedalongSegmentA-2.ThisplanservesWatanabytruckfromarailheadatCantwellandDevilsCanyonbyrailfromGoldCreels.Intheplanthereisnoconnectionbetweendams.This··planservesbothdamsbytruckfromarailheadatHurricane.ThesouthsideoftheriverisusedtoDevilsCanyonwithamajorbridgedownstreamfromthedamsite,thenfollowingAlternateAtoWatana.Thisseemstohavetheleastobjectionableenvironmentalconcerns.$74,458,50063,837,4707,784,000$146,079,970$87,387,00077,747,6566,910,000$172,044,656$54,667,00063,837,4706,384,000$124,898,470ConstructionCostsLogisticCostsMaintenanceConstructionCostsLogisticCostsMaintenanceConstructionCostsLogisticCostsMaintenancePlan7Plan67.5.6.[JJooooooooooooooooor11/d-30- ]~JJ8.Plan8I.ANALYSISThisplanisthesameasPlan4exceptthataserviceroadwouldbeprovidedalongSegmentA-2asinPlan7.ItisagiventhatWatanadamwillbeconstructedfirst.ThiscanbejustifiedforeconomicreasonsinthatWatanaisthemorecostlystructure.Thereforeearlyconstructionwillminimizetheeffectsofinflationonthetotalproject.Plans4,5,7&8allserveWatanafromthenorth.The39-milesegmentfromDenaliHighwaytoWatanadamcouldbemadeserviceableinoneconstructionseasontherebyallowingworktoprogressonWatanawhiletheremainingsegmentsoftheaccessplanarebeingconstructed.$96,071,50088,143,9988,894,000$193,109,498-31-ConstructionCostsLogisticCostsMaintenancer11/dPlans1through3andPlan6requireconstructionofthetotalaccessfacilitybeforesignificantworkcanbedoneonthedam.Theseplanswouldtake2to3seasonstoconstructduetolengthbridges,andthedifficultyinleap-froggingconstructioncrewsduetotheproblemsofresupplyingtheforwardcrews.Consideringanestimatedprojectcostof2billiondollarsandaninflationrateof10%peryear,atwoyeardelayinstartingconstructionofthedamscouldincreaseprojectcostsbyasmuch400milliondollars,thisexceedsthehighestcostaccessplanbyafactorof2.oooooooo]ooooooo ItisrecommendedthataccessPlan7beacceptedasthemostcosteffectiveaccessplanthatservesallprimaryprojectrequirements.Plans7&8includeasecondaryserviceroadbetweenthetwodamsandallowtheearlierconstruction.Plan7usesrailfromGoldCreektoDevilsCanyonandisthelowercostplan.Plans4&5donotprovideforaccessbetweendams.Providingaccessbetweenthedamshasasignificantadvantageforthemaintenanceandoperationofthetotalcomplex.Withouttheconnectioncrewswouldhavetobestationedatbothsitesorfacea150-mileonewaytriptogofromonesitetotheother.Withtheconnectionthisbecomesa35-miletripandwouldallowonecrewtomaintainandoperatebothdams.l]ooooJJoooooooooDo[JPlan7Plan8J.RECOMMENDEDPLANr11/d$146,079,970$193,109,498-32- JJoJoJJJooooooooooosusi4/j.APPENDIXAPROPOSEDCORRIDORS-14- INDEXRecommendedRoadWayAlignmentForEachCorridor[JJoooooooooooo0,LooooCorridorGuideCorridor1Corridor2Corridor3susi4/j. -16-PagesA - CPages1 - 6Pages7 -12Pages13-20•0•". susi4/jAPPENDIXBALTERNATIVECOMPARISON.!. -40- ~l--1J-1DistanceAverageSumof(Miles)Grade%-Deflections-1Alternative1-A68.6Miles2.51%492°34.1511Alternative1-B16.95Miles1.91%57°09.921Alternative1-C27.28Miles2.10%163°36.761Alternative1-D8.77Miles4.19%125°57.411~1Alternative2-A56.6Miles2.72%154°29.531]Alternative2-B11.91Miles3.32%79°07.831Alternative2-C6.04Miles5.08%26°15.781]Alternative2-D10.55Miles3.32%16°47.841Alternative2-E15.73Miles2.09%35°15.941]Alternative2-F4.74Miles2.09%22°15.881Alternative2-G8.17Miles4.49%152°30.421Alternative2-H7.64Miles1.91%24°00.901JAlternative2-112.13Miles1.13%18°30.531--1Alternative3-A39.09Miles1.26%59°15.72'Alternative3-B41.98Mil~s.1.15%93°9.491JRailroad(2R)58.0Miles1.48%299°58.861.1Alternative1-A-Curve17Three41A20.67Miles2.43%89°27'1Alternative1-A-JCurve1Three41A27.80Miies2.48%111°41.81'JAlttenative1-A-Curve63ToHwy.30.18Miles2.64%155°9.85'JJJsusi4/j-41- NorthofSusitnaRiverAccessRoads(Corridors1and3)'-JJDistance(Miles)AverageGradeDefl.MileSumofDeflections~1~IJ]]]JJJ-jJJJJ1 .Alternative1-A-WastanaCamptoParksHwy.68.6Mi.2.Alternative1-A,1-B-WatanaCamptoParksHwy.64.8Mi.3.Alternative1-A,1-C-WatanaCamptoParksHwy.68.08Mi.4~Alternative1-A,1-DBaseCamptoAnch/Fbk.Hwy.64.27Mi.5.Alternative1-A,1-B,1-DWatanaCamptoParksHwy.60.55Mi.6.Alternative1-A,1-C,1-DWatanaCamptoParksHwy.63.75Mi.7.Alternative1-A,3-A-DevilsCanyontoDenaliHwy.77.50Mi.8.Alternative1-A,1-B,3-A-DevilsCanyontoDenali73.79Mi.9.Alternative1-A,1-C,3-A-DevilsCanyontoDenaliHwy.76.98Mi.10.Alternative3-A-WatanaCamptoDenaliHwy.39.09Mi.11.Alternative3-B-WatanaCamptoDenaliHwy.41.98Mi.12.Alternative1-A,3-B-DevilsCanyontoDenaliHwy.80.39Mi.13.Alternative1-A,1-B,3-B-DevilsCanyontoDenaliHwy.76.68Mi.14.Alternative1-A,1-C,3-B-DevilsCanyontoDenaliHwy.79.86Mi.susi4/j. -42-2.51%7010.8212.37%7005.66'2.35%7°59.86'2.70%8°29.59'2.58%8028.90'2.54%9°22.61'1.83%5007.09'1.67%4056.29'2.22%5°49.63'1.73%5°21.36'1.58%5°11.64'1.59%6°02.49'492034.15'460017.071544029.10'545051.13'513034.04'597°46.07'396°39.52'448°34.47159°15.72193°09.49'430033.79'398°16.71'482028.74' -1~lJ]SouthofSusitnaRiver(Corridor2)]DistanceAverageDefl.Sumof(Miles)GradeMileDeflections"]15.Alternative2-A-56.6Mi.2.72%2°43.771154°29.531WatanaToSherman"]16.Alternative2-A,2-D-WatanaToParksHwy.67.15Mi.2.81%2°33.05'171°17.37'J17.Alternative2-A,2-E-WatanaToParksHwy.76.51Mi.2.52%2°33.111195014.771J18.Alternative2-A',2-F-WatanaToSherman54.79Mi.2.81%3°00.091164026.93'19.Alternative2-A,2-F,2-D-]WatanaToParksHwy.65.34Mi.2.89%2°46.43;181°14.77120.Alternative2-A,2-F,2-E-JWatanaToGoldCreek74.69Mi.2.58%2°44.841205°12.17'21.Alternative2-A,2-B,2-C-WatanaToSherman59.47Mi.3.26%4°02.91'240045.961]22.Atlternative2-A,2-F,2-B,2-C-JWatanaToSherman57.66Mi.3.36%3057.73'228°27.48123.Alternative2-A,2-B,2-C,2-D-]WatanaToParksHwy.70.02Mi.3.85%3°40.71;257033.80'24.Alternative2-A,2-F,2-B,]2-C,2-E-WatanaToParksHwy.77.56Mi.3.00%3°28.26'269012.72'J25.Alternative2-A,2-B,2-G,2-H-WatanaToGoldCreek51.66Mi.2.38%5032.25'286004.21J26.Alternative2-A,2-B,2-G,2-H,2-D-WatanaToParksHwy.68.50Mi.2.09%4004.18'278046.48'JJsusi4/j-43- SouthofSusitnaRiver(Continued)DistanceAverageDefl.Sumof(Miles)GradeMileDeflections27.Alternative2-A,2-8,2-G,2-H,2-E-WatanaToParksHwy.68.25Mi.2.17%4036.271314015.28'28.Railroad,Watanato58.01Mi.1.48%5010.27'299058.861GoldCreek29.Alternative2-A,2-8,2-C,.......,2-E-WatanaToParksHwy.79.37Mi.2.93%3032.82'2(31031.2'30.Alternative2-A,2-F,2-8,2-G,2-D-WatanaToParksHwy.68.21Mi.3.35%3035.741245015.32'31.Alternative2-A,2-F,2-8,2-G,2-H-WatanaToGoldCreek49.85Mi.2.33%5056.30'29601.6132.Alternative2-A,2-F,2-8,2-G,2-H,2-D-WatanaToParksHwy.66.69Mi.2.41%4054.59'327026.39133.Alternative2-A,2-F,2-8,2-G,2-H,2-E,2-IWatanatoParksHwy.66.44Mi.2.22%4050.79'324012.18''l~]]of]]~J]]]]oJ]]'JJJJ~Jsusi4/j. -44- rl~I'1]JJ]JJJlJ]cl]JJJJr11/dAPPENDIXCPRELIMINARYDESIGNDEVELOPMENT-33- I...--..~~,L.-....:.......--:o..---J LJ LJ "--L...-...r '~-----'L.J ---.i - fEBRUARY 191!:l AlASICA DISTRICT,COAPS Of ENGINEERS UPPER SUSITNA RIVER BASIN SELECTED 2 DAM PLAN GENERAL PLAN SOUTHCENTRAL.RAILBELT AREA,ALASKA SUPPLEMfNTAL FEASIBILITY STUOY \ I ~.......-'""1 ~ ("-1/"'" ) LoU Loui ..Road TOG"",H'~~~ ~'-~llIOn \ \ l \ odJ----/' r-./ ,r _...I ..I=, ~ '1 ) I C7 <pot'" L v1 \ )-,-/ /' tP ~..~ ~'i>"o r,------- I ---{.-v/'----"('-----/\"/ .0 .!&..Con,..!!!!!. -"') \ l'-\, <9.."y>",-~'-... <90 I u1/.\~~('5')-, I / '--\ "r \ \ 1\ 0;.1 1.'...1......._a. E Iiotlll'd..tOIRull_'-" SCALE UPPER SUSITNA RIVER PROFILE RIVER MILES 120-290 o ~,-_.10 I;·'=----P]MII•• t ..".... -?-'~.,.',<t.~#' rj(>o"t. ,9-~~ , f _r Ii..--"----L-J 1'-----',L--..;r-----...;--.J I 1~L..J "'----J !1-~r-----------.J SOUTHCENTRAL RAlLBELT AREA,ALASKA SUPPLEMENTAL FEASIBILITY STUDY UPPER SUSITNA RIVER BASIN WATANA DAM DETAIL PLAN FEBRUARY 1979 'LAI/It...DlSTIlleT,OO'IPI Of Et«JINUIlS "-~""Il'00 ~'OOO ~'IOO .JLU.ZMOO ~~::O ~,leo oo WATANA PROJECT DISCHARGE CAPABILITY DURING EMERGENCY DRAWOOWN. ALL GATES FULL OPEN :l -[L."'l)NIN.HIGH L(HLoutt.tT'OOL IL.IIIOIIIN./illll LEVELOUn.tTPOOL LQIIL[vtIOU1L[T ~L.IT'S tlllRGl...C'ORa"OOwN 20.000 40,000 10.'000 10,000 100,000 I~O.OOO 140,000 Q IN CFS z ~Z(f )--------- 1,100 NOTES: I.TOPOGRAPHIC CONTOURS ARE BASED ON AERIAL PHOTOGRAPHY DATED 10 JUNE 1978.VERTICAL DATUM IS MEAN SEA LEVEL (M 5 U o ~-~~-.~,OOO ~~tOO~·L~:~:~UNH:~:~~OOOIOIlOO Q IN CFS ~J~NOltllALI'OOI.r:L.II'~ SUNITS IlIGtlLtVlLOUh.U o.. !l! is % ~ ~ ~ il ! ~ ;s 1\ 5 ffi il ! ~ '" r'----L-r'---L.J '----'---L..J r II.--...J L....,;,)i..--...i ~L....,;----.I ----J I--,-.., \" SOUTHCENTRAL RAILBELT AREA,ALASKA SUPPL.EMENTAL FEASIBILITY STUDY UPPER SUSITNA RIVER BASIN DEVIL CANYON DAM CONCRETE GRAVITY DAM DETAIL PLAN ALoUI(A DISTIller,CXlIlPS Of [NGINUflS FEBRUARY 1979 ~l~~lj]J"JJ]]JJ]JJ]JJJJr11/dAPPENDIXDMACROSCALEENVIRONMENTALCONCERNS-34- 11IIIlJI.1,jJLE..Gj-E]JD•••••••_•••••CO~IPDR------CL'J::RIPOR2=R1':IDOI"'-.3______RAILROADSHE:.:e:.'-:='I\.JO.j5,IO,II,/2.,c!:/3AgE.OMITTeD."-10A<:<:.eee>COl<faIDORe,ARe<CON'k'Ne:D'-HE!.Re:.lkJ.5 4 3 2UUI 05U;GRAPHICSCALEINMILESu~a:Z0u.«5:2ca:wwa:2~«wena:~,c.•m~UaZ~-,..alIJil"'mZ~Zcl~!:i~D.::J~«PAXSONlIJ~.-Z~~QgUem~~)(wuFeWa:~C2-I-(JW>..,I-0a:a:0c.:I:5:2I-::::la:«I-(Ja:ww..J~W0c.a:c«>llI::::I:en««..JZ«I-Ci5::::len1980~........-PROJ.NO.NKG,...,.0JIS--10NKGOF!CiiEOilb"~ED ]]]lJ]gSCALE1":2000'1980-.,.,.-NKG-......JIS-....-NKGCiiEi5ilO....Uw>..,....0~a::0~J:S:2....::::>a::<....Ua::ww..J3=w00~a::0<>:ll::J:en<l:<..JZ<....e;;::::>en052210~OF ,i......--L-I'----'r'---L.-'\~1----.."----''i--..;-----,,-------.J '-------J R &M CONSULTANTS.INC. ENGINEERS GEOLOGISTS PLANNERS SURVEYORS ACCESS CORRIDORS :;\ .~ V" CJ) () :r>rm ...., Nooq i ~~I~a~~* ~Io~IU ~~ALASKA POWER AUTHORITY SUSITNA HYDROELECTRIC PROJECT '\\...\" FOR CONTINUATION,SEE Sf£ET 3 '"...~J.)'",'.L 'j)/(,',',. PREPARED FOR: ACRES AMERICAN,INC. '1''....i.' u~a::0zI,L<te;0a:wwa::2if<twena::wc.a::~3052210~r:2000'\,\I'ilj\ (/l:J,;(0.(/)°oTN:zT'?!;<)\''\~/8SCALEl-e;w/',-,>...,I-0a:a::0c.:x:~I-::::Ia::<tl-e;a::ww..J~W0c.a::0<t>:ll:::J:en<t<t..JZ<tI-enoYS;o::::Ienc-'1e-l:j,-]]-]]]]'J]Q:It]JJJJ 00/'.20cJ~a::0zLL~~0a::wwa::2:ct~w(/)a::w0.a::..()/"'0U"~""Z~-,.."....~..IJ)~"28....Z~rI)z<I:~=~~0::J~IJ)!Qzg.-O~=U"=•:;Eg0•0~t.)"II~.rI)rI)~t.)t.)~I-()w>...,I-0ii:a::o0.j::~=>a::~t>a::ww...J~~0.~~>~:r:(J)~~Z;il-ii)=>(/)05221Q~4SCALEf':2000' x2486SCALEf':2000'1980".,....NKG-JIS--NKG'"'"""u~a::Z0u.<t~Cla::wwa:::::Eif<twena::w0..a::~I-()W>""")I-0a:a::00..::t:~I-;:)a::<tI-()a::ww...J3:w000..a::Cl<t>~::t:en<t<t...JZ<tI-en:::>en9 619800522[.0~PROJNQ~JIS--NKG"""""SCALEf':2000'd~a:Z0u.<l:20a:wwa:::I~<l:Wena:wa.a:..t)U«<l:z~-,..«UJ~...z;rI)c:{~Cd~~0:J~UJ!Qz~....O~CdUaCd•~~0•U1~~aO:~rI)~00rI),6~...///.'~~~-,l-t)W>-~I-0a:a:0a.J:2l-=>a:c00''-'<l:l-t)~lll"'~/~,>a:w25w..J;;W---00.0""6'n..a.a:25"250'~>-r'',//<l:V//'/4'li:::J:'l7//en<l:"-.../[fI.-<l:.J...JZ'),<l:I-en=>en SCALEf':2000'1980-=rNKG,.....JIS---NKG"""""cJ~a:Z0u.«S:?0a:wwa:~if«w(/)a:wc.a:51rIJ==0Q-====0~rIJrIJ~~~<I-0W>-..,I-0~a:0c.:I:S:?I-:::::>a:«I-0a:ww...I~W0c.a:0«>-:II::::I:(/)««...Iz«l-ii):::::>(/)052210~7 OFI-0W>JI-0ii:ex:0c.J:~I-::::lex:<l:I-0ex:ww...I~W00c.ex:Cl<l:>~J:C/)<l:<l:...IZ<l:I-en::::lC/)14.1980-mr"KG-..-JIS........"KG'"'"""e,j;!!';ex:z-0u.<l:~Clex:wwex:2ECf<l:wC/)ex:wc.ex:•=0U«<l:az~-,..«III~1-=z;fIJ<t~==~~0:J~QIII!z~....O~==,~U"===0~:uPtJ"O:~fIJfIJ~tJtJ<SCALEf':2000' 15~NKG-,.,.,.-JIS-.....-NKG'"""'"1":2000',...-,_~r....uw>..,....0a:ce0a-::I:~....::>ce<t....UcewW..J==W00a-cea<t>~::I:(/)<t<t..JZ<t....U5::>(/)oIJ--~~--"""tr..,.",.~_H_ABITAXCONTINUATION,SEESHEET.£...~ cJ:?:ex::0zu..«~0ex::wwex::2if«wCJ)ex::wc.ex::..()U««2~->..«OJilf/)...2~==<00!:i~:J~QOJ!....2~==Og==U"0•~:uUl~a~.f/)'f/)~UU~T31NT30NSCALEf':2000'1980.........-NKG~~NKG'"""'"~()w>-..,!::0ex::ex::c.0:I:~~:::>ex::«~()ex::ww..J;:W00c.ex::0«>-~:I:CJ)««..Jz«~Ci5:::>CJ)052210~B olSCALEr:2000'u~a:Z0u..<l:~Ca:wwa:2:~<l:Wena:wa..a:..()u~<l:z~->..~Ini...rIJz~z==c(~!;j~0:::J~QIn!z~..==O~u.,==•0~:tli~t.J.,1I~rIJrIJ~t.Jt.J<.I-()w>-..,I-0ii:a:0a..:I:~I-;:)a:<l:I-()a:ww...I~W0a..a:c<l:>-x:::I:en<l:<l:...IZ<l:I-(i.j:::>(f) 02':a:Z0LLCl:0Qa:wwa:::IifCl:wena:wQ.a:..~U~z~->.11.OJil...r/)z;«~==!:ii=::J=QOJ!Zg-O~==U~==•0~:ra~~II~f/)f/)~~~4(..oeJOI-0w7>-'"')I-0a:a:Q.0::x::~I-:::::la:Cl:I-0a:ww..J~W0a:Q.QCl:>-lll:::::x::enCl:Cl:..JZCl:I-tS«enz><:::::l-.V>"'«en>--'w«>'"iil-'«~191::V~""""""GNKG11.........17~JIS---0NKGOFz-DSEESHEET16"'""""lSCALE1":2000' I,,\...0I'\)\,~~II\~0",10..•/.)~26M618hn."'0,3,"'Pd3:a:0Zu.«2ca:wwa::2~«wenz1f,oa:wa.a:.-~Ugz~->..aOJi1--z;rIJet~==!:ii0J=OJ!Qz~....O~==U~==-~:0~~~II~rIJrIJ~~~<....()W>-..,....0a:a:0a.:.t:2....:::la:«....()a:ww...J~W0a:a.c«>-::.:::.t:en««...JZ<S"«....z'"en-.<n<n":::l>--'~"encr~-'"§u;;:~~~~0fllQ.1NO."KG~0JJ.......~B0&11JISz---0NKGOF~"""""~""""'"iSCALE1":2000' r11/dAPPENDIXEPROPOSEDACCESSPLAN-35-