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~ <br />RE:MnlDOT <br />CRHInterchange <br />SEHNo.107488 <br />MarcGoess <br />AreaEngineer <br />..Mn/DOT <br />1500WestCountyRoadB2 <br />Roseville,MN55113 <br />WeareprovidingaworkplanforprovidingMnIDOTpreliminarydesignandtrafficengineeringservices <br />fortheCRinterchange.Whatfollowsisanoveralldescriptionoftheworkwewillbeproviding <br />HII-35W <br />.alongwithacostsummarybasedonhourlymtesforthevarioustasksweunderstandthatSEHwillbe <br />.providing. <br />BackgroundtotheProject <br />Overthepast18monthspreliminarydesigneffortshavebeenunderwayfortheCRHII-35Winterchange <br />inArdenHillsandMoUndsView.Thiswork:pointedoutsevemlcapacityandoperationallimitations <br />withthecurrentconfigumtionofI-35Winthisarea.Recognizingthatthereisnofundingforamajor <br />improvementto1-35W,Mn/DOThasraisedsevemlconcernswiththeshortandlongtennimplicationsof <br />improvingtheHinterchangewithoutaddressingthe1-35Wdeficiencies.Specifically,themodeling <br />....hasshownthatNorthBound1-35Wcurrentlysuffersfromcongestionandthisproblemwillonlyworsen <br />asvolumesincreaseandtheNorthBoUndCRHrampisimproved;whichwillreducetheweaving <br />distancetotheCRIexitramp. <br />OnFriday,February6,2009,MnlDOTmetwiththeCitiesofShoreviewandArdenHillstodiscussthis <br />.issue.AsanoutcomeofthatmeetingMn/DOThasproposedtoinitiateastudyofalternativestoaddress <br />theNorthBO\UldweavingissuebetweenCRHandCRI.Whatfollowsisadescriptionofthescopeand <br />costtoconductthestudy.. <br />Scope <br />Task1-ConceptDevelopment <br />FourconceptplanswillbedevelopedforNorthBoundfreewayaccessbetweenCRHandCR1.These. <br />willinclude: <br />•.Concept1-PreferredAlternativeLayoutwithstandardon-mmpgeometryforCRHandno. <br />changestoCRIinterchange.... <br />•.Concept2-PreferredAlternativeLayoutwithstandardon-rampgeOmetryforHandclose <br />.NorthBoundaccesstoorfromCRIinterchange..... <br />•Concept3-PreferredAlternativeLayoutwithwithAuxiliarylaneaddedbetweenCRHand <br />Highway10.CRIexitrampwouldremainandCRIentranceloopwouldberemoved. <br />..•Concept4-PreferredAlternativeLayoutwithcombinedNorthBoundexitrampforbothCRH <br />andCRI.CRIwouldexitusingaone-wayconnectionfromCRHentranceramp.Auxiliary <br />ShortElliottHendrickson·Inc.,3535Drive.Paul.MN55110-5196 <br />SEHisanequalopportunityemployerwww.sehlnc.coml651.49O.2ooo800.325.2055651.490.2150fax <br /> <br />