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6 Hedge Canal Diversion Dam Daly Ditches Irrigation District

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6 Hedge Canal Diversion Dam Daly Ditches Irrigation District 6HedgeCanalDiversionDam DalyDitchesIrrigationDistrict ProjectDescription DalyDitchesIrrigationDistrict[DDID][Hamilton] wastherecipientof$290,000inAmericanRein vestmentandRecoveryAct[ARRA]fundsin 2009.Thisfundingwasusedtoreplaceanaged timberdiversiondamontheBitterrootRiver southofHamilton. Thisprojectconsistedofreplacingtheexisting timberframediversiondamwithamoresolid damconsistingofa6’vertical,subsurfacecon cretewallsupportinga6’verticalgroutedrock wall.Thisnewstructureservedtostabilizethe riverbankatitsinterfacewithacanaladjacentto theBitterrootRiver,bypassinganuphillspring runningbeneaththecanal,thusenablingcontin uedfunctioningofthedam. Figure61–Largeboulderswereplacedandgroutedtogetheratthe Thenew,replacementdiversiondamprevents siteoftheformer,decayingdam.[Photo:PropertyofMorrison fishentrainmentwhileencouragingfishpassage. MaierleInc.] Previousfailuresofthediversiondamhavere sultedinalossofirrigationwatersto41%ofthe irrigationdistrict. History DDIDwasfoundedbyMarcusDalyinthelate 1800sandincludestheHedgeCanalDiversion Dam.Thiscanalwasconstructedadjacenttoand uphilloftheBitterrootRiverintheearly1900s. Uponitsconstruction,itwasexpectedtofunc tionfor50to75years.Sinceitsconstruction,a springhasdevelopeduphillfromthecanal,which hasservedtocausesignificantweakeningofthe canalbankbetweentheriverandthecanal.An additionaldetrimenttotheoriginaldiversion damhasbeenthecontinuederosionoftheriver bank,duetoriverfluctuationsincombination Figure62–Boulderplacementaccuracyhelpedtoensurethelon withanunstablebank.Thiserosionhascontrib gevityofthereplacementdam.[Photo:PropertyofMorrisonMaierle utedtoincreasedturbidityintheBitterroot River,whichdirectlyeffectsfishhabitatand spawninggrounds,particularlyfortheendan Theirrigationaffordedbythisdiversiondamcurrently geredBullTrout[Salvelinusconfluentus].Sea irrigates6,108acresoflandfor778ruralusers,and sonaldamagehasresultedinthisdambeingcon measures25milesinlength.Aspartofthecontract tinuouslyrepairedbyDDIDapproximatelyevery arrangementwithDDIDusers,DDIDownsallwater otheryearforthepastdecade. rightstothewaterintheirditches.Thisparticulardi OCRMW—MTAFLCIO,RestorationStudy,2012—P.32 versiondamcanalmeasuresawater intakeof140cubicfeetpersecond [cfs]duringhighrunoff. Chronology Workonthisprojectbeganwithde signimplementationin2007.Thepro jectconsistedofreplacingthediver siondamandintakestructurewith moremodernfacilities.Thisnewde signprovidedoptionstorecreational riverusersnotpreviouslyavailable,as wellasaffordingprotectiontoendan geredBullTroutviafishscreens. Projectplanninganddevelopment wereperformedbyDDIDemployees andengineersfromMorrisonMaierle Figure63–ThenewHedgeCanalDiversionDamisnowcomprisedofatightly assembledgroutedrockdiversion,inlieuofthepreviouslyexistingtimber Inc.[MMI][Missoula].Thispartner structure.[Photo:H.Janssen,August2010] shipconsistedofidentifyingand quantifyingneeds,attainingandad ministeringgrants,successfullyac quiringrequisitepermits,allproject engineeringdesign,andconstruction oversight. Specificprojectengineeringbeganin March2008byMMI. Constructionofthereplacementdam occurredintwophases.PhaseIcon structionoccurredfromJanuaryto April2010andconsistedoftheplace mentoflargediameterboulders[36” 60”]securedwithpressuregrout [Figure63].Thisstructurewascom plimentedbyadiversionapron,con creteabutmentwall,groutcutoff wall,acanalintakestructureincluding triplebarrel48”pipeswithheadgates, Figure64–ThisrockheadwallonthesouthernbanksoftheBitterrootRiver andatrashrack.Inadditiontothe replacedtheexistingtimberstructurethathadbeenineffectuallyinplace. dams’replacement,theoriginaltimR [Photo:H.Janssen,August2010] berframeheadwallhadundergone severedeteriorationthroughoutdec adesofseasonalriverfluctuations, CurrentProject andrequiredreplacementwitharock PhaseIIisexpectedtobecompletebyspring2011andcon stabilizingwall[Figure64]. sistsoftheconstructionofaboaterpassageandvertical platefishscreen. OCRMW—MTAFLCIO,RestorationStudy,2012—P.33 Anadditional$11,194waspaidin attorney’sfeesfor65billablehours, or$171.16/hr. ProjectLabor Excavationlaborwasundertakenby PattersonEnterprises[Clinton]at DavisBaconstateprevailingwage rates.Pattersonreceived$581,462 fortheirservices. LaborsuppliedbyPattersoncon sistedofbulldozeroperators,excava toroperators,skidsteeroperators, dumptruckdrivers,roller/compactor drivers,cementmasons,andgeneral laborers. Laborwagestotaled$129,691for Figure65–Thepreviousdamrequiredconstantmaintenance,anditsinabilitytocon 3,341hoursoflabor,withanaverage sistentlyfunctionultimatelynecessitateditsremoval.Here,PattersonEnterprisesem hourlywageof$38.82. ployeespreparetoinstallthe6’highsubsurfaceconcretewall.Anadditional6’ groutedrockwallwillrestatopthisstructure.[Photo:PropertyofMorrisonMaierle Inc.] Totalfuelexpenses,dieselandgaso line,equaled$31,128,while$21,750 CostandSourceofFunding waspaidtothelandownerforgravelextracted ThetotalprojectcostoftheHedgeCanalDiversion fromthelandandutilizedontheproject[1,450 Damreplacementwas$1,275,670. yds³]. AnARRAgrantof$290,000wasawardedforwork Atotalof$145,000wasexpendedbyPatterson onthisproject,whichwassupplementedbya uponprojectmaterials. $98,000grantfromMontana’sFish,Wildlife,and ParksFutureFisheries’program.Additionally, Pattersonsubcontractedconcreteworkto $350,000wasborrowedbyDDIDfromtheMontana DonaldsonBrothersReadyMixInc.[Hamilton]for DepartmentofNaturalResourcesandConservation $55,322.Donaldsonemployeesdelivered134yards [DNRC],$100,000arrivedfromaDNRCRenewable ofcement,atarateof$2630pernineyardloads. Resourcegrant,$6,170camefromDalyDitchesIrri Additionally,Donaldsoncontributed480yardsof gationDistrictfundsforindirectcosts,and$431,500 groutatarateof$124/yard[includinglabor]. wasprovidedbybiannualappropriationsfromthe Donaldsonemployeesreceivefullhealthcoverage, MontanalegislatureintheformofaUSArmyCorps butnovacationbenefits.Donaldsondrivers’wages ofEngineersoperationsandmaintenancesuppleR rangefrom$1517/hour.Additionally,apumptruck ment. andpumptruckoperatorwererequiredtofacilitate applicationoftheconcreteatthesite.Thepump ProjectPlanning&Design truckwasusedfor63totalhours.Itshourlyrate ProjectDesignwasconductedbyMorrisonMaierle includesadriver’shourlywage[sameasabove]plus Engineering[Missoula],inconjunctionwithDDID. $145/hr.forthepumptruck. MorrisonMaierle[asofDecember2010]received $230,404fortheirengineeringanddesignservices. ProjectOversight Thesefundsreflect1,443billablehours,andlabor ProjectoversightwasconductedbyDDIDmanager wagestotaling$114,151.Thisfigurereflectsanav PaulBarteni,inconjunctionwithMorrisonMaierle erageof$79.10/billablehour. Inc.,andtheUSArmyCorpsofEngineers. OCRMW—MTAFLCIO,RestorationStudy,2012—P.34 Figure66–Replacementoftheolddamnecessitatedexca Figure67–Thenatureofdamreconstructionrequiredtem vating12’belowtheriverbedandplacinga6’concretewall porarydiversionoftheBitterrootRiver,whichcanbeseenin belowthe6’ofgroutedrock.[Photo:PropertyofMorrison thebackground.[Photo:PropertyofMorrisonMaierle] Maierle] Figure68–Preprojectstatus ofHedgeCanalDiversionDam [2007].[Photo:Propertyof DalyDitchesIrrigationDistrict] Figure69–PostPhaseIstatusof HedgeCanalDiversionDam. PhaseIIistobecompletedin spring2011[Photo:H.Janssen, August2010] OCRMW—MTAFLCIO,RestorationStudy,2012—P.35 7DuckCreekDam YouderianConstructionInc. ProjectDescription TheDuckCreekDamrestsinPetroleumCounty, 1.5mileseastofBlakesleeRoad.Theprojectun dertakenatthissitewastoremoveanexisting damstructure,andreplaceitwithareinforced earthenstructure,therebyensuringthecontinued safetyoflocalresidentsandtravelersalongtwo separatecountyroads. Thesurfaceareaofthedammeasures125acres, whilethestoragecapacityofthedamregisters 702acrefeet.ThisprojectwasfundedwithAmeri canReinvestmentandRecoveryAct[ARRA]funds augmentingBLMDeferredMaintenanceProgram [DMP]funding. Figure71–1,600yds³ofsoilwereexcavatedfromthesitedur ingtheremovalofthepreviousdam.[Photo:H.Janssen,August History 2010] TheDuckCreekDamwasconstructedbyWorks ProgressAdministrationworkersin1936andwas designedtofunctionforfiftyyears.Thisstructure ultimatelylastednearlyeightyyears.In1965,the waterflowintakewasraised4’owingtoproblems ofopeningandclosingtheintake.Waterrights wereheldbyaprivatelandowneruntilthe1960s whentheyweretransferredtotheBureauofLand Management[BLM]. Ina2001studyofthestructure,theBLMidenti fiedtheDuckCreekDamasa“HighHazard”struc ture.Annualclimatecycleshadledtotheeventual erosionanddeteriorationofthisstructure,neces sitatingitscontinuousrepair.Thisdetermination wasbaseduponthedams’locationrestingupgra dientfromtwocountyroads,TeigenRoadand WelterDivideRoad,theformerofwhichservesas aruralbusroute. TheBLM’sDeferredMaintenanceProgram[DMP] wascreatedtofundtherepairofstructures whoseannualmaintenancecostsexceed25%of theproject’soriginalcost.Thisfederalprogramis subsidizedbytaxpayersandprovides$13,000,000 Figure72–MikeMontgomery,BLMSafetyofDams annuallytotheBLM.Onceaprojectisplacedon Engineer,takingsurveyreadingsattheDuckCreek thislist,itisprioritizedandfundedaccordingly. Damsite.[Photo:H.Janssen,August2010] Currentuseofthissite,whichispubliclyaccessible OCRMW—MTAFLCIO,RestorationStudy,2012—P.36 fromacountyroad,provideshabitatandnesting 159yds³ofgravel.Afinal22,935yds³ofdirtwere groundsforshorebirdsandwaterfowl. addedtocompletethecompactedembankment, yieldingatotalembankmentvolumeof25,123yds³ Chronology consistingofsand,gravel,anddirt. ProjectworkfortheDuckCreekDamreplacement beganwithitsidentificationin2001bytheBLMas Constructionwork,includingreseeding,wascom a“HighHazard”structure. pletedinOctober2010.BLMreseedmixturewas sewnataratioof17.3lbs/acreandincluded:Arriba InJune2005,HansenEnvironmentalDrilling
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