HomeMy WebLinkAboutHEX Exhibits_SR900.Tukwila NCL_15-000709.ENAIETM1235O)CL4526SR900TukwSaNCLtoSR167WYSConcet.)epMCAfliPS&EiXL45Zb_PS_VM.d5flTIME4:13:19PMI!FEDAIDPROJ.NO.DATE1113120140PLOTTEDBYoseOkSOESIGNEDMYR.t.ROEHRENTEREDSYR.D.ROEHR_SYM.HASANREVISIONDATESY.,*)../Ths1tTTL.t:I23N.R4E.W.M.T23NR5E.W.M.LiKJ((QSR900IVIP6.66‘i’UK\V1L.BE:cTON9.87010002000SCALEINFEETSEc,‘“-.—l_______LEi2J-SR900ITUKWILANCLTOSR167WYEIVMYWashingtonStateICONCRETEPAVEMENTREHARILITATIONDopartmentofTransportationIVICINITYMAP
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Work Zone 1 -Remove and replace concrete panels
and repair asphalt shoulders
Work Zone 2 -Mill and fill asphalt shoulder
Work Zone 3 -Remove and replace concrete panels
and repair asphalt shoulders
Work Zone 4 -Repair asphalt shoulders
Work Zone 5 -Mill and [ill asphalt lanes and shoulders
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EXHIBIT 4
I 1/4/2014
ColumniColumn2CoAumn3Column4ColumnSColii,czColumngSoundlevelSoundlevelSoundlevelItem#Equipment(USA)at50tUBA)at100’(dBA)at200’TypeofConstructionworkMitigationmeasures.ThesoundsofthisequipmentwouldbeperceivedthesameasexistingbackgroundTrafficnoiseSupportsvarious....II-tonpickuptrucks686562.fromSR900atnightContractorisnotallowedparkingandsdlsngvehiclesnexttoresidences.constructionactivities...Afierhoursnoisecomplaintphonenumberwillbemadeavailable.———-uiisuuuiiyiceguiplileucauuuuswuiDcsuiiiiuiLunurseicuiuci’uuniglittduieuacacgcuwcuccaiisc2Dumptrucks858279GeneralconstructionnoiseAmbientsensitivebackupalarmsarerequsredandtrucktailgatebangingisnotallowedAnoperations__afterhoursnoisecarnplaintphonenumberwillbeavailable.•.-ShoulderPavingSlowmovingmobileoperation.Constructionequipmentsoundswillbesimilartonoisefrom3Pavmgmachines746862....operationsSR900nighttimebackgroundtrafficnoise.Minimizeuseofsensitivebackalarms.Slowmovmgmob;leoperationConstructionequipmentsoundswillbesimilartonoisefrom4Planninggrinder$57973ShoulderPavingSR900mghttimebackgroundtrafficnoiseIfrequiredresidenceswillbenotifiedofnsghtworkoperations--.anpryidedtheaugs;Meroprsnoisecomplrntphonenumberwillbeavlabig.Pavementrepairand5Aircompressor686256SupportvariousParkequipmentbreakingthelineofsightfromresidencesorplacetemporarynoiseshieldswhenconstmctionactivities.feasible.Anafterhoursnoisecomplaintphonenumberwillbeavailable.6Asphaltsawcut807468PavementrepairAnafterhoursnoisecomplaintphonenumberwillbeavailableConcrete/PanelPavement7Concretesawcut.847872...repairAnafterlimitsnoisecomplaintphonenumberwillbeavailable.Pavingoperationsand...Redirecttemporarylightsawayfromresidences.Avoidparkingandidlingvehiclesnextto8PortableLightplantsandgenerators726660supportvanousresidencesAnafterhoursnoisecomplaintphonenumberwillbeavailable,-._________cQnstmcbonachvthes....[:-9CompactionRollers/portablecompactorfor7165PavementrepairTemporynoiseshieldswillbeusedasdirectedbytheengineerwhenfeasible.Anafterhourspavementrepairnoisecomplaintphonenumberwillbeavailable.PavingoperationandI0Flatbedtrucks797673supportvariousMobileoperationConstructionequipmentsoundswillbesimilartonoisefromSR900nighttimeconstructionactivitiesbackgroundtrafficnoiseContractorisnotallowedparkingandidlingvehiclesnexttoresidences.Anafterhoursnoise11TruckMountedAttenuators686256Trafficcontrol...complaintphonenumberwillbeavailable.Mobileoperation.ConstructionequipmentsoundswillbesimilartonoisefromSR900nighttime12Sweeper696663PavingoperationsbackgroundTrafficnoiseAnafterhoursnoisecomplaintphonenumberwillbeavailable..PlacementofpavcrnentMobileoperation.Thesoundsoftbisequipmentwouldbeperceivedthesameasexisting13Stnpsngpavementmarkingtrucks787572backgroundnoisefromSR900/MLKblcatnight.Contractorshallavoidparkingandidlingvehiclesnexttoresidences.Afterhoursnoisecomplaintphonenumberwillbemadeavailable.Placementof..14Pavementmarkingmachines787266pedestrian/crosswalkStationaryOperation.WhenfeasibleplaceTemporaryNoiseshieldandnotifyresidentsofthelines.operation.15857973ConcretePatementStationaryOperaiion.WhenfeasibleplaceTemporaryNoishieldandnotiftjresidentsoftheHydraulicPavementbreakerbreakeroperation.‘..EXHIBIT5
WAC173-60-040:Maximumpermissibleenvironmentalnoiselevels.WACI73-60-040Noagencyfilingsaffectingthissectionsince2003Maximumpermissibleenvironmentalnoiselevels.(1)Nopersonshallcauseorpermitnoisetointrudeintothepropertyofanotherpersonwhichnoiseexceedsthemaximumpermissiblenoiselevelssetforthbelowinthissection.(2)(a)Thenoiselimitationsestablishedareassetforthinthefollowingtableafteranyapplicableadjustmentsprovidedforhereinareapplied.EDNAOFEDNAOFNOISESOURCERECEIVINGPROPERTYClassAClassBClassCCLASSA55dBA57dBA6OdBACLASSB576065CLASSC606570(b)Betweenthehoursof10:00p.m.and7:00am.thenoiselimitationsoftheforegoingtableshallbereducedby10dBAforreceivingpropertywithinClassAEDNAs.(c)Atanyhourofthedayornighttheapplicablenoiselimitationsin(a)and(b)abovemaybeexceededforanyreceivingpropertybynomorethan:(i)5dBAforatotalofI5minutesinanyone-hourperiod;or(ii)I0dBAforatotalof5minutesinanyone-hourperiod;or(iii)15dBAforatotalofI.5minutesinanyone-hourperiod.[Order74-32,§173-60-040,filed4/22/75,effective9/1175.JEXHIBIT6http://app.leg.wa.gov/WAC/default.aspx?cite=173-60-0402/23/2015
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SR 900/Tukwiia NCL to
SR 167 Wye-Concrete.
Pavement Rehabilitation
PublicHearing
Vicki Grover,Plan Reviewer
EXHIBIT 7
October 20,2015 --.::EJ-:an .
___
OEL::*
Community and Economic Development
Brief Description
Bein
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.project
S 131st St
S I33rd St
S 132nd St
N
CD
RE1T
U Panel repair
Shoulder repair
Pavement niarking
k)7
ws DOT’s
project is
located along
SR 900
between MP
6.66 and MP
9.87 and
includes
Seattle,
Tukwila,
Renton,&
King CountySW7thSt
All 01‘FHL CURVE
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,‘_(‘
Brief DescrIption
.The work will be conducted within the State’s
Right of Way.
.Construction Time Frame —April 1,2016 to
December 31,2016.
.34 non-consecutive nights over 9 months
1[U)OFflfl5E!\
--;‘.,;+::-
Brief Description of Work
Mobilization &Preparation
Pavement Shoulder Repair
Concrete Panel Replacement
Pavement Marking
Steve n s St reet I nte rsect on
TOTAL
5 nights
10 nights
10 nights
5 nights
4 nights
34 nights
NOTE:This is the minimum number of nights required to complete
this work.
‘ii OF Ill 1 c1 RV E
Mitigation Measures
.Use of Temporary Noise Shields around stationary equipment
.Haul Trucks shall have rubber bed liners
.Truck tailgate banging is prohibited
.Use of back-up observers and back-up warning devices for dump
trucks per WAC 296-155-610
.The applicant shall provide weekly reports listing the number of
work nights used to date
.Unwanted material is to be removed by sweeping.No scraping
type of equipment shall be used during nighttime work.
.Applicant shall provide a 24-hour complaint number and a list of
designated contact person to register complaints or concerns.
i;;;;N
AilbAL)()i I’IIF CURV1
WAC 1?36O-O4O:Maximum permissible environmental noise levels.I
WAC I 7340-040 No agency filings affecting this section since 2003
Maximum permissible environmental noise levels.
(1 )No person shall cause or permit noise to intrude into the property of another person which noise exceeds the
maximum permissible noise levels set forth below in this section.
(2)(a)The noise limitations established are as set forth in the following table after any applicable adjustments
provided for herein are applied.
EDNA OF EDNA OF
NOISE SOURCE RECEIVING PROPERTY
Class A Class B Class C
CLASSA 55dBA 5?dBA 6OdBA
CLA$S3 57 5O 65
CLASSC 60 65 70
(b)Between the hours of 1 0:00 p.m.and 7:00 am.the noise limitations of the foregoing table shall be reduced by
10 USA for receiving property within Class A EDNAs.
(0)At any hour of the day or night the applicable noise limitations in (a)and (b)above may be exceeded for any
receiving property by no more than:
(i)5 dBA for a total of 15 minutes in any onehour period;or
(ii)I 0 dBA for a total of 5 minutes in any one-hour period;or
(iii)1 5 dBA for a total of I .5 minutes in any onehour period.
[Order 74-32,§173-60-040,filed 4/22/75,effective 9/1/75.]
IIIcI)t)FI’IILCIRVj
EDNA =Environmental Designation for Noise Abatement
Residential uses are Class A EDNA
Commercial uses are Class B EDNA
Light Industrial are Class C EDNA
The zoning along the construction corridor (2.71 miles)
consists of residential (Multi-family &single family),
commercial and light industrial.
‘
Construction Equipment used during the nighttime operations
include:
.Dumptrucks S
.Generators
.Portable lights
.Paving machines
.Grinders
.Rollers
.Air compressors
.Saw cutters
Staff recommends that the Variance for the
SR 900/Tukwiia NCL to SR 167 Wye-Concrete
Pavement RehabilitatIon,File No LUA 1%-
000709,V be approved subject to the
following conditions:
1 The applicant shall provide the City of Renton project manager with the
phone number for after-hours noise complaints prior to commencement
of construction.Any complaints within the Renton city limits shall be
summarized and reported to the City’s project manager within 10 days
of the complaint.
2.The applicant shall implement proposed mitigation measures to
diminish or eliminate noise during construction.
3,The applicant shall notify the City of Renton project manager with the
date and areas of expected night work prior to commencement of night
work,a minimum of24 hours in advance ofthe work.
i:;ELN
2345678BEFORETHEHEARINGEXAMINERFORTHECITYOFRENTON9)10RE:WAStateDept.ofTransportationFINALDECISION11NoiseVariance)12)LUA15-000036VAR)‘3____________________________________________)14Summary1516TheapplicanthasappliedforavariancetotheCity’snoisestandardsinordertomakerequiredimprovementstoSR900betweenmilepost6.66andmilepost9.87over34nonconsecutivenights17fromJune1,2015toDecember31,2015.Thevarianceisapprovedsubjecttoconditions.18Testimony1920VickiGrover,CityofRentonCivilEngineer,summarizedtheproposal.21MohammadHasan,WSDOTprojectmanager,explainedtheneedfortheproject.HenotedthatSR900hasmultiplecracksthatwillgetworseandcompromisethefunctionalityofthe22roadway.TheworstnoiselevelswillbereachedintheSR900/135tharea,whereworkmay23takeuptotennights.24MariaLauraMusso-Escude,representingtheapplicant,notedthatthegrinderswillgeneratethe25mostnoiseat85dBA.85dBAiscomparabletoablender.Peoplewillnoticethegrindersat26night,butthegrindersaremovingandwillbepastahomeinabout15minutes.Whenpeoplecallthecomplaintline,WSDOTcanhelpreducenoisebyprovidingearplugsandcanofferNoiseVariance-1EXHIBIT8
1hotelaccommodationsifallelsefails.Callsarerarebuttheydosometimeshappen.2Exhibits34Exhibits1-7identifiedatpage2ofthestaffreportwereadmittedintothe.recordduringthehearing.Thefollowingexhibitswerealsoadmittedduringthehearing:5Exhibit8Staffreport.6Exhibit911x17aerialphotographofprojectsiteand8x11photographsofproject7site.89FindingsofFact10Procedural:11Applicant.WashingtonStateDepartmentofTransportation.122.Hearing.AhearingwasheldonthesubjectapplicationonFebruary24,2015intheCityof13RentonCityCouncilChambers.14ProjectDescription.TheapplicanthasappliedforavariancetotheCity’snoisestandardsin15ordertomakerequiredimprovementstoSR900betweenmilepost6.66andmilepost9.87over34nonconsecutivenightsfromJune1,2015toDecember31,2015.16Theprojectwouldconsistofreplacingconcretepanels,conductingpavementshoulderrepairs,adding17pavementmarkings,andconstructingaccessibilityimprovementsinconformancewiththeAmericans18withDisabilitiesAct(ADA).Constructionequipmentusedduringthenighttimeoperationswillinclude,butisnotlimitedto:dumptrucks,generators,portablelighting(lightplants),paving19machines,grinders,compactionrollers,aircompressors,andsawcuttersforasphaltandconcrete.Noiselevelsresultingfromprojectconstructionactivitywouldgeneratepeaknoiselevelsof68to8520dBAasperceivedatadistanceof50feetfromtheWSDOTpropertylines.21Whenfeasible,temporarynoiseshieldswouldbeplacedaroundconstructionequipment.Inaddition,22theproponentproposesmeasurestomitigatenoiseimpacts.One-tonpick-uptruckswillnotbeallowedtoparkoridlenearresidences.Anafter-hoursnoisecomplaintphonenumberwillbe23provided.Useofbackupalarmswillbeminimized.24....
.AvariancefromRMC8-7-2isnecessaryinordertoconductthenighttimework,asmaximum25permissibleenvironmentalnoiselevels(perWAC173-60-040,incorporatedbyreferenceinRMC8-7)limitextendedperiodsofnoisefrom10:00pmto7:00amtolevelsbetween45dBAand60dBA,26NoiseVariance-2
1withexceedancesof5to15dBApermittedforperiodsof1.5to15minutesinanyone-hourperiod2(WAC173-60-040).34.SurroundingUses.NumerouspropertiesalongtheSR900constructionrouteareoccupiedby4single-familyhomes.56AdverseImpacts.ThenoisegeneratedbytheproposalwillbemitigatedasmuchascanbereasonablyrequiredofWSDOT.85dBAisnoisyfornighttimehours,especiallyforhomeslocated7directlyadjacenttoSR900rightofway.However,theneedforrepairsofSR900isunavoidableandwillonlybetemporary.Althoughthevariancerequestisforatotalof34evenings,thisisforthe8entirelengthoftherepairprojectinRentonandnoiselevelswillonlybeexceededforamaximumof9tennightsinthemostaffectedarea,whichisinthe135thStareaalongSR900.WSDOThasproposedinEx.1sixmitigationmeasureswhichareimplementedintheconditionsofapprovalof10thisdecision.FromareviewofthislistandthequestioningofWSDOTrepresentativesduringthehearing,itappearsthatWSDOTwillbeusingallreasonablemeasuresavailabletoreducenoise11impacts.Measurerangesfromusingnoisemitigationshieldstoacomplainthotlinewillbe12employed.Allresidentswithin500feetoftheprojectwillbeprovidednoticeofthework14daysinadvanceoftheproject.1314ConclusionsofLaw151.Authority.RMC8-7-8(A)authorizesthehearingexaminertohearrequeststovariancesofthe16noisestandardssetbyChapter7RMC.172.ReviewCriteria.NoisevariancesaregovernedbyRMC8-7-8(D).Applicablecriteriaare18quotedbelowinitalicsandappliedthroughcorrespondingconclusionsoflaw.19RMC8-7-8(D)(1):Thattheapplicantsufferspracticaldifficultiesandunnecessaryhardshipandthevarianceisnecessarybecauseofspecialcircumstancesapplicabletotheapplicant‘spropertyor20project,andthatthestrictapplicationofthisChapterwilldeprivethesubjectpropertyowneror21applicantofrightsandprivilegesenjoyedbyothers.223.Thecriterionismet.Theworkmustbedoneduringnighttimehourswhennoiselimitsare23strictestinordertominimizedisruptionofthetransportationsystem.TheworkisunavoidableasSR24900isinseriousneedofrepairinordertocontinuefunctioningproperly.25R1VIC8-7-8(D)(2):Thatthegrantingofthevariancewillnotbemateriallydetrimentaltothepublichealth,w4Jireorsafety,orundulyinjurioustothepropertyorimprovementsinthevicinityofthe26locationforwhichthisvarianceissought.NoiseVariance-3
15.Thenoiselevelsgeneratedbytheproposalmayverywellannoyanddisturbadjoining2propertyowners.However,thedisturbancewillbeforalimitedperiodoftimeandtheapplicantwill3provideforearplugsand/orhotelaccommodationsifthenoiseisintolerable.GiventheabsoluteneedfortheSR900repairwork,theamountofmitigationproposedasoutlinedinFindingofFact4No.5andthelimitednatureoftheadverseimpacts,itisconcludedthatgrantingthevariancewillnot5bemateriallydetrimentalorundulyinjuriousascontemplatedinthecriterionquotedabove.6RMC$-7-$(D)(3):Thatthevariancesoughtistheminimumvariancewhichwillaccomplishthedesiredpurpose.76.Theapplicantdemonstratedduringthehearingthattheworkisunavoidableandthatthe8mitigationimposedisthemostthatcouldbereasonablyrequired.Forthesereasonsthevarianceis9theminimumnecessary.10R1VIC$-7-8(D)(4):Thatthevariancecontainssuchconditionsdeemedtobenecessarytolimittheimpactofthevarianceontheresidenceorpropertyownersimpactedbythevariance.Thevariance11approvalmaybesubjecttoconditionsincluding,butnotlimitedto,thefollowing:12a.Implementationofanoisemonitoringprogram;b.Maximumnoiselevels,13c.Limitationontypesofequtpmentanduseofparticzdarequipment;d.Limitationonback-upbeepersforequipment;14e.Requireduseofnoiseshieldsorbarriers;IRestrictionstospecifictimesanddays;15g.SpecfIcrequirementsfordocumentationofcompliancewiththenoisevariance16conditions;h.Spec(ficrequirementsfi)rnotJicationtonearbyresidents;17i.Requiredcashsecuritytopayforinspectionservicestoverifycompliance;I.RequiredaccesstotheprojectbytheCitytovercompliancewiththenoisevariance18conditions;19k.$pecfIcprogramtoallowfortemporaryhotelvoucherstoeffectedresidents;1.Requirementsforwrittenverificationthatallworkersunderstandthenoisevariance20conditionsfortheproject;andm.ProvisionallowingtheCitytoimmediatelyrevokethevarianceapprovalfthe21varianceconditionsareviolated.22237.Mostofthemeasuresidentifiedabovehavebeeneitherproposedorrequiredfortheproject.Themeasurestakentomitigateimpactshavebeenfoundadequatebystaffanditdoesn’tappearthat24anyadditionalmeasuresfromthelistabovewouldmateriallyhelptomitigatenoiseimpacts.2526NoiseVariance-4
1RMC8-7-8(D)(5):TheimportanceoJtheservicesprovided1wthefacilitycreatingthenoiseandtheotherimpactscausedtothepublicsafety,healthandwelfarebalancedagainsttheharmtobe2szfferedbyresidentsorproperlyownersreceivingtheincreasednoisepermittedunderthisvariance.38.TheneedforimprovementstoSR900areofcriticalimportanceandthathasbeenbalanced4intotheassessmentofimpacts(FOFNo.5)asrequiredbythecriterionabove.5RMC8-7-8(D)(6):TheavailabilityofpracticablealternativelocationsormethodcJortheproposed6U5Cwhichwillgeneratethenoise.79.Therearenopracticablealternativelocationsormethodsavailable.8RMC8-7-8(D)(7):Theextentbywhichtheprescribednoiselimitationswillbeexceededbythe9varianceandtheextentanddurationofthevariance.1010.Noiselevelsmayreachlevelsashighas85dBAbygrindersforupto10daysintheSR9001135thportionoftheproject.WSDOTrepresentativestestifiedthat85dBAisthenoiselevelofa11blender.Aspreviouslynoted,thesenoiseimpactsareunavoidable.Inaworstcase,WSDOTwill12providehotelaccommodationstoadjoiningpropertyowners.13DECISION1415Asconditioned,thevariancemeetsallapplicablecriteriaasoutlinedinthisdecision.Theconditionsofapprovalareasfollows:1617•TheapplicantshallprovidetheCityofRentonprojectmanagerwiththephonenumberforafter-hoursnoisecomplaintspriortocommencementofconstruction.18AnycomplaintswithintheRentoncitylimitswillbesummarizedandreportedtotheCity’5projectmanagerwithin10daysofthecomplaint.Inresponsetocomplaints,19theapplicantwilltakeallreasonablemeasurestominimizedisturbance,includingthe20provisionofearplugsorhotelaccommodationsastestifiedduringthehearing.212.TheapplicantshallimplementallproposedmitigationmeasuresidentifiedinExhibit1todiminishoreliminatenoiseduringconstruction.223.TheapplicantshallnotifytheCityofRentonprojectmanagerwiththedateandareas23ofexpectednightworkpriortocommencementofnightwork,aminimumof24hoursinadvanceofthework.25AsauthorizedbyRMC8-7-8(D)(4)(m),theCommunityandEconomicDevelopmentAdministratormayrevokethisvarianceiftheapplicantfailstocomplywithall26conditions.NoiseVariance-5
11617181920212223242526PhiA.OliwcditsAppealRightandValuationNoticesRMC4-8-080providesthatthefinaldecisionofthehearingexaminerissubjecttoappealtotheRentonCityCouncil.RMC4-8-110(E)(14)requiresappealsofthehearingexaminer’sdecisiontobefiledwithinfourteen(14)calendardaysfromthedateofthehearingexaminer’sdecision.Arequestforreconsiderationtothehearingexaminermayalsobefiledwithinthis14dayappealperiodasidentifiedinRMC4-8-110(E)(13)andRMC4-8-l00(G)(9).Anewfourteen(14)dayappealperiodshallcommenceupontheissuanceofthereconsideration.AdditionalinformationregardingtheappealprocessmaybeobtainedfromtheCityClerk’sOffice,RentonCityHall—7thfloor,(425)430-6510.Affectedpropertyownersmayrequestachangeinvaluationforpropertytaxpurposesnotwithstandinganyprogramofrevaluation.DATEDthis10thdayofMarch,2015.23456789101112131415CityofRentonHearingExaminerNoiseVariance-6
1
2
3
4
5
6
7
8 BEFORE THE HEARING EXAM[NER FOR THE CITY OF RENTON
9
10
RE: WA State Dept. of Transportation
FINAL DECISION
Noise Variance
12
3
LUA 15-000036, VAR
14
Summary
s
6 The applicant has applied for a variance to the City's noise standards in order to make required
improvements to SR 900 between mile post 6.66 and mile post 9.87 over 34 nonconsecutive nights
17 from June l, 2015 to December 31, 2015. The variance is approved subject to conditions.
18
Testimony
19
20 Vicki Grover, City of Renton Civil Engineer, summarized the proposal.
21 Mohammad Hasan, WSDOT project manager, explained the need for the project. He noted
that SR 900 has multiple cracks that will get worse and compromise the functionality of the
22 roadway. The worst noise levels will be reached in the SR 900/ 135 h area, where work may
23 take up to ten nights.
24
I Maria Laura Musso-Escude, representing the applicant, noted that the grinders will generate the
25 most noise at 85 dBA. 85 dBA is comparable to a blender. People will notice the grinders at
26 night, but the grinders are moving and will be past a home in about 15 minutes. When people
call the complaint line, WSDOT can help reduce noise by providing ear plugs and can offer
Noise Variance - 1
EXHIBIT 8
1 hotel accommodations if all else fails. Calls are rare but they do sometimes happen.
2
Exhibits
3
4 Exhibits 1-7 identified at page 2 of the staff report were admitted into the record during the
hearing. The following exhibits were also admitted during the hearing:
5
Exhibit 8 Staff report.
6
Exhibit 9 11 xl7 aerial photograph of project site and 8x 1 1 photographs of project
7 site.
8
9 Findings of Fact
10 , procedural:
11
Applicant. Washington State Department of Transportation.
12
2. Hearin. A hearing was held on the subject application on February 24, 2015 in the City of
13 Renton City Council Chambers.
14 3. Proiect Description. The applicant has applied for a variance to the City's noise standards in
15 order to make required improvements to SR 900 between mile post 6.66 and mile post 9.87 over 34
nonconsecutive nights from June 1, 2015 to December 31, 2015.
16
The project would consist of replacing concrete panels, conducting pavement shoulder repairs, adding
pavement markings, and constructing accessibility improvements in conformance with the Americans
g with Disabilities Act (ADA). Construction equipment used during the nighttime operations will
include, but is not limited to: dump trucks, generators, portable lighting (light plants), paving
19 machines, grinders, compaction rollers, air compressors, and saw cutters for asphalt and concrete.
Noise levels resulting from project construction activity would generate peak noise levels of 68 to 85
20 dBA as perceived at a distance of 50 feet from the WSDOT property lines.
21
When feasible, temporary noise shields would be placed around construction equipment. In addition,
22 the proponent proposes measures to mitigate noise impacts. One-ton pick-up trucks will not be
allowed to park or idle near residences. An after-hours noise complaint phone number will be
23 provided. Use of backup alarms will be minimized.
24
A variance from RMC 8-7-2 is necessary in order to conduct the nighttime work, as maximum
25 permissible environmental noise levels (per WAC 173-60-040, incorporated by reference in RMC 8-
7) limit extended periods of noise from 10:00 pm to 7:00 am to levels between 45 dBA and 60 dBA,
26
Noise Variance - 2
1 with exceedances of 5 to 15 dBA permitted for periods of 1.5 to 15 minutes in any one-hour period
2 (
WAC 173-60-040).
3
4. Surroundin Uses. Numerous properties along the SR 900 construction route are occupied by
4 single-family homes.
5
6 5. Adverse Impacts. The noise generated by the proposal will be mitigated as much as can be
reasonably required of WSDOT. 85 dBA is noisy for night time hours, especially for homes located
7 directly adjacent to SR 900 right of way. However, the need for repairs of SR 900 is unavoidable and
will only be temporary. Although the variance request is for a total of 34 evenings, this is for the
g entire length of the repair project in Renton and noise levels will only be exceeded for a maximum of
9 ten nights in the most affected area, which is in the 135 h St. area along SR 900. WSDOT has
proposed in Ex. 1 six mitigation measures which are implemented in the conditions of approval of
10 I this decision. From a review of this list and the questioning of WSDOT representatives during the
hearing, it appears that WSDOT will be using all reasonable measures available to reduce noise
1 impacts. Measure ranges from using noise mitigation shields to a complaint hotline will be
12
employed. All residents within 500 feet of the project will be provided notice of the work 14 days in
I advance of the project.
13
14 Conclusions of Law
15
1. Authoritv. RMC 8-7-8(A) authorizes the hearing examiner to hear requests to variances of the
6 noise standards set by Chapter 7 RMC.
17 2. Review Criteria. Noise variances are governed by RMC 8-7-8(D). Applicable criteria are
1 g quoted below in italics and applied through corresponding conclusions of law.
19 RMC 8-7-8(D)(1): That the applicant suffers practical difficulties and unnecessary hardship and the
variance is necessary because of special circumstances applicable to the applicant's properry or20Iproject, and that the strict application of this Chapter will deprive the suhject property owner or
2 applicant ofrights arrd privileges enjoyed by others.
22
3. The criterion is met. The work must be done during night time hours when noise limits are
23 strictest in order to minimize disruption of the transportation system. The work is unavoidable as SR
24 900 is in serious need of repair in order to continue functioning properly.
25 RMC 8-7-8(D)(2): That the granting of the variance will not be rnaterially detrimental to the public
health, welfare or safety, or unduly injurious to the properry or improvements in the vicinity of the
26 location for which this variance is sought.
Noise Variance - 3
1
5. The noise levels generated by the proposal may very well annoy and disturb adjoinin2
property owners. However, the disturbance will be for a limited period of time and the applicant will
3 provide for ear plugs and/or hotel accommodations if the noise is intolerable. Given the absolute
need for the SR 900 repair work, the amount of mitigation proposed as outlined in Finding of Fact
4 No. 5 and the limited nature of the adverse impacts, it is concluded that granting the varia ill n t
be materially detrimental or unduly injurious as contemplated in the criterion quoted abo.
5
6 111 1C O-/-0• i iJ, rilriilt7i•!' CnlirrJ)1 ic l i 17 il iri rirP •in•i n, IrJri;• ri //,. .
desiredpurposc.
7
6. The appli in I uiuii u ii i luriii th licurin u
g mitigation imposed is the most that could be reasonablv r
1t ,
impact of the vuriance on the residence or property owners im ucted by the variunce. The variunce
1 approval may be subject to conditions including, but not limited to, the following.•
2 a. Implementation ofa noise monitoringprogram;
b. Maximum noise levels;
3 c. Limitation on rypes ofequipment and use ofparticular equipment;
d. Limitation on back-up beepersfor equipment;
14 e. Required use ofnoise shields or barriers;
f. Restrictions to specific times and days;5 g. Specifrc requirements for documentation of compliance with the noise variance
6 conditions;
h. Specifrc requirements for notification to nearby residents;
17 i. Required cash security to payfor inspection services to ver compliance;
j. Required access to the project by the City to ver compliance with the noise variance
g conditions;
9 k. Specific program to allow for temporary hotel vouchers to effected residents;
l. Requirements for written verification that all workers understand the noise variance
20 conditionsfor the project; and
m. Provision allowing the Ciry to immediately revoke the variance approval if the
21 variance conditions are violated. .
22
23 7. Most of the measures identified above have been either proposed or required for the project.
The measures taken to mitigate impacts have been found adequate by staff and it doesn't appear that
24 any additional measures from the list above would materially help to mitigate noise impacts.
25
26 I
Noise Variance -4
1 RMC 8-7-8(D)(5): The importance ofthe services provided by thefacility creating the noise and the
2 other impacts caused to the public safety, health and welfare balanced against the harm to be
suffered by residents or properry owners receiving the increased noise permitted under this variance.
3
8. The need for improvements to SR 900 are of critical importance and that has been balanced
4 into the assessment of impacts (FOF No. 5) as required by the criterion above.
5 RMC 8-7-8(D)(6): The availabiliry c fpracticuble niternative locations or methods for the proposed
6 use which will generate the noise.
7 9. There are no practicable alternative locations or methods available.
g RMC 8-7-8(D)(7): The extent by which the prescribed noise limitations will he exceeded by the
9 variance and the extent and duration ofthe variunce.
10 10. Noise levels may reach levels as high as 85 dBA by grinders for up to 10 days in the SR
900/135th portion of the project. WSDOT representatives testified that 85 dBA is the noise level of a
blender. As previously noted, these noise impacts are unavoidable. In a worst case, WSDOT will
12 provide hotel accommodations to adjoining property owners.
13
DECISION
14
15 As conditioned, the variance meets all applicable criteria as outlined in this decision. The
conditions of approval are as follows:
16
l I. The applicant shall provide the City of Renton project manager with the phone
number for after-hours noise complaints prior to commencement of construction.
lg Any complaints within the Renton city limits will be summarized and reported to the
City's project manager within 10 days of the complaint. In response to complaints,
19 the applicant will take all reasonable measures to minimize disturbance, including the
20 provision of ear plugs or hotel accommodations as testified during the hearing.I 2. The a licant shall im lement all ro osed miti ation measures identitied in Exhibit21pppppg
1 to diminish or eliminate noise during construction.
22
3. The applicant shall notify the City of Renton project manager with the date and areas
23 of expected night work prior to commencement of night work, a minimum of 24
24
hours in advance of the work.
25 4. As authorized by RMC 8-7-8(D)(4)(m), the Community and Economic Development
Administrator may revoke this variance if the applicant fails to comply with all
2C conditions.
Noise Variance - 5
1
2 DATED this l Oth day of March, 2015.
3
c:_'_ --..---.'._._4 f'h cii nY:
5
City of Renton Hearing Examiner
6
7
g Appeal Right and Valuation Notices
q RMC 4-8-080 provides that the final decision of the hearing examiner is subject to appeal to the
Renton City Council. RMC 4-8-110(E)(14) requires appeals of the hearing examiner's decision
10 to be filed within fourteen (14) calendar days from the date of the hearing examiner's decision.
1 A request for reconsideration to the hearing examiner may also be filed within this 14 day appeal
period as identified in RMC 4-8-110(E)(13) and RMC 4-8-100(G)(9). A new fourteen (14) day
2 appeal period shall commence upon the issuance of the reconsideration. Additional information
regarding the appeal process may be obtained from the City Clerk's Office, Renton City Hall —
13 7`h floor, (425) 430-6510.
14 Affected property owners may request a change in valuation for property tax purposes
15 notwithstanding any program of revaluation.
16
17
18
19
20
21
22
23
24
25
26
Noise Variance - 6
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