The URL can be used to link to this page

Home My WebLink AboutExh32_Arborist Memo_181113.pdf—‘TreesSolutionsncConsuIingAcharissProjectNo.IS-5487MemorandurnTO:KyleLublin,PulteGroupSITE:ForestTerrace2611UnionAveNERenton,WARE:PlantingonSlopesDATE:November12,2018PROJECTARBORIST:Hollylosso,ASCARegisteredConsultingArborist#567ISACertifiedArboristPN-6298A,ISAQualifiedTreeRiskAssessorInthismemo,Ihavebeenaskedtoaddressplantmaterialappropriateforplantingonaslopewith2:1grade.Nativevegetationroutinelygrowsonslopesofthisgradeinnaturalareas,andoftenincludesthefollowingspecies:bigleafmaple(Acermacrophyl/um),vinemaple(Acercircinatum),beakedhazelnut(Coryluscornuta),Oregonash(Fraxinuslatifolia),westernredcedar(Thujaplicata),Douglas-fir(Pseudotsugamenziesii),grandfirtAblesgrandis),shorepine(Pinuscontorta),whitepine(Pinusmonticola)andwesternhemlock(Tsugaheterophylla).Treesarerarelyamonoculture,andalsotypicallyincludesadeciduousshrubunderstoryincluding,oceansprayCHolodiscusdiscolor),mockorangefPhiladeiphuslewisli),Indianplum(Qemleriacerasiformis),andsnowberry(Symphoricarposa/bus).Slopesalsousuallyincludealowevergreenlayer:Oregongrape(MahoniaaquifoliumandM.nervosa)andswordfern(Polystichummunitum).Bothtreesandshrubsshouldbeplantedwhenrevegetatingaslope,whichwillhelpre-establishanaturalsystemandoutcompeteinvasiveplants.Whenplantingplantsonaslopeofthisgrade,plantsshouldbeassmallaspossible.Thesamelarge-caliperplantmaterialtypicallyplantedasspecimensinyardsorparkingstripswilllikelyhaveahighmortalityrateifplantedonslopes.Plantssizesshouldbeappropriateforrestoration-styleplanting.Plantingafewlargerspecimensthroughouttheareacanbeadvantageousaswell,toprovideafocalpointandshade,untilothervegetationgrowsin.Allvegetationtransplantedontoslopeswillrequiresupplementalirrigationuntilestablished.Largertreesrequirelongerestablishmentperiodsthansmallernurserystock.Allplantedmaterialonaslopeshouldbemulchedatthetimeofplantingtomaintainmoisture.Respectfullysubmitted,Hollylosso2940WestlakeAveN#200.Seattle,WA98109Phone206.528.4670/www.treesolutions.net ProposedRevisedCondition15Theapplicantshallresubmitarevisedplatplanwiththecivilconstructionpermitapplicationthatidentifiesthecul-de-sacasapublicstreetdesignedpertheCity’sStreetStandards.TherevisedplatplanshallbereviewedandapprovedbytheCurrentPlanningProjectManagerpriortopermitissuance.Thecul-de-saconthewesternportionofthepropertyshallhaveaminimumpavedradiusoffortyfivefeet(45)witharicjhtof-wayradiusoffiftyfivefeet(55’)fortheturnaround(RMC4-6-060H.4).Thenorthsideofcul-de-sacbulbshallbedesicinedwithan8-footplanterstripand5footsidewalktotheendofthewesternpropertyline.Thesouthsideofthecul-de-sacbulbshallbedesignedwitha4.5footplanterstripand5footsidewalkaroundthebulb.P:\18000s\18396\planning\RevisedHearingConditions.docx