14th street market street to colfax avenue pilot p

8/10/2019 14th Street Market Street to Colfax Avenue Pilot p

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PILOT PROJECT REPORT

VERSION 1.0.1

14THSTREET, MARKET STREET TO COLFAX AVENUE

CITY AND COUNTY OF DENVER, CO

Prepared by

Craig Weiland

11/03/2010


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CONTENTS

Introduction...................................................................................................................................................................4

ProjectDescription........................................................................................................................................................4

ResourcesConsulted.....................................................................................................................................................5

PilotProject

Summary

...................................................................................................................................................

6

CreditDiscussionbyCategory.......................................................................................................................................8

ProjectRequirements(PR).......................................................................................................................................8

Environment&Water(EW)...................................................................................................................................11

Access&Equity(AE)..............................................................................................................................................13

ConstructionActivities(CA)...................................................................................................................................17

Materials&Resources(MR)..................................................................................................................................19

PavementTechnologies(PT)..................................................................................................................................21

PotentialCustomCredits.......................................................................................................................................23

Recommendations.......................................................................................................................................................

23

Limitations...................................................................................................................................................................23


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FIGURES

Figure1:LocationMap..................................................................................................................................................5

Figure2:ProjectScorecard............................................................................................................................................7

Figure3:Typical14th

StreetConfiguration..................................................................................................................15

Figure4:

Pavement

Reuse

Quantities

.........................................................................................................................

20

TABLES

Table1:SummaryofRawScores*.................................................................................................................................6

Table2:SummaryofPotentialScoreswithNo/LowCostAdditions(Pot.Score)**.....................................................6

Table3:SummaryofMaximumScoreswithAllFeasibleAdditions(MaxScore)***....................................................7

Table4:ProjectRequirementsCategory.......................................................................................................................8

Table5:Environment&WaterVoluntaryCreditCategory.........................................................................................11

Table6:Access&EquityVoluntaryCreditCategory...................................................................................................13

Table7:ConstructionActivitiesVoluntaryCreditCategory........................................................................................17

Table8:Materials&ResourcesVoluntaryCreditCategory........................................................................................19

Table9:PavementTechnologiesVoluntaryCreditCategory......................................................................................21

Table10:PotentialCustomCredits.............................................................................................................................23

APPENDICES

AppendixA:AbouttheGreenroadsRatingSystem


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Greenroads Pilot Project 14thStreet, Market Street to Colfax Avenue

November 3, 2010 4

INTRODUCTION

ThisreportreflectstheresultsoftheGreenroadsPilotProjectfor14th

Street,MarketStreettoColfaxAvenue

ProjectfortheCityandCountyofDenver. TheresultsarepresentedusingtheGreenroadsProgressScorecard

supplementedbyadetailedcreditbycreditdiscussion.Recommendationsarealsoincludedforapplyingthe

Greenroadssustainabilityperformancemetrictotheproject.

PreparationofthePilotProjectinvolvedareviewofprojectdocuments,interviewswithprojectcontacts,anda

sitevisit. ForalistofresourcesusedtopreparethePilotProjectReport,refertotheResourcesConsultedsection.

Thefollowingsectionprovidesabriefprojectdescription.AdetaileddescriptionoftheGreenroadsRatingSystem

canbefoundinAppendixA,includingashortlistofGreenroadsProjectRequirements(PR)andVoluntaryCredits

(VC)forreference.AdescriptionofthePilotProjectmethodologyisprovidedinAppendixB,andsupporting

calculationsforcreditsearnedareprovidedinAppendixC.

PROJECT DESCRIPTION

Theintentofthisprojectistoenhancethepedestrianexperiencealong12blocksof14th

StreetfromMarketStreet

toColfaxAvenueindowntownDenver(Figure1). Thenorthernsidewalkswillbewidenedto19feetandthe

southernsidewalk

will

be

widened

to

16

feet.

The

sidewalk

area

will

include

seating

areas,

elongated

planters

and

planterpots,trees,streetlighting,accentlightingandwayfindingsignage. Bulboutswillalsobeinstalledonthe

southsidetominimizepedestriancrossingdistances. AnonstreetbikelanewillbeaddedtoconnecttheCherry

CreektrailandCivicCenterPark. TheroadwaypavingwillconsistprimarilyofHMAmillandoverlayandfulldepth

HMAreplacementwherenecessary.

Theprojectisa$14millionbondprojectasapublic/privatepartnership,with$10millionpublic(BetterDenver

BondFunds)and$4millionprivate(14th

StreetGeneralImprovementsDistrict). Theconstructioncontracthasnot

yetbeenawarded. Thisreportservesasaninitialdesignandspecificationreviewtoevaluatehowtheproject

wouldscoreinGreenroadsV1.0ifallgoesasplanned.


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November 3, 2010 5

RESOURCES CONSULTED

ThefollowingresourceswereusedtopreparethisPilotProjectreport.

FinalBidDocuments

DocumentsrequiredbyGreenroadspreparedbyParsonsBrinckerhoffincluding:

o MasterGreenroadsDocumentwithcreditbycreditdescriptions

o 14th

StreetContractorSustainabilityRequirements

o Backupdocumentationforeachcreditpursued

Figure1:LocationMap


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November 3, 2010 7

Table3:SummaryofMaximumScoreswithAllFeasibleAdditions(MaxScore)***

ProjectName PR EW AE CA MR PT CC Max Score Eligible? AwardPotential

14th

St.,MarkettoColfax 11 15 27 14 22 16 12 106 Yes Evergreen

TotalPossible 11 21 30 14 23 20 12 120 ***MaxScoresdoincludethefullpointsforallCustomCredits.Includingthesepointsinflateseachprojectscore,butdoesnotchangethe

overall

achievement

level;

this

is

intended

to

demonstrate

the

range

of

points

possible

to

each

project.

Figure2:ProjectScorecard

ProjectRequirements(PR) Possible A P M ConstructionActivities(CA) Possible A P M

PR1 Environmental ReviewProcess Req X CA1 QualityManagementSystem 2 2 0 0

PR2 LifecycleCostAnalysis Req X CA2 Environmental Training 1 1 0 0

PR3 LifecycleInventory Req X CA3 SiteRecyclingPlan 1 1 0 0

PR4 QualityControlPlan Req X CA4 Fossil Fuel Reduction 1 2 1 0 1

PR5 Noise

Mitigation

Plan Req X CA

5 Equipment

Emission

Reduction 1

2 1 0 1

PR6 WasteManagementPlan Req X CA6 PavingEmissionReduction 1 1 0 0

PR7 PollutionPreventionPlan Req X CA7 WaterUseTracking 2 2 0 0

PR8 LowImpactDevelopment Req X CA8 ContractorWarranty 3 3 0 0

PR9 PavementManagementSystem Req X Total 14 12 0 2

PR10 SiteMaintenancePlan Req X

PR11 Educational Outreach Req X Materials&Resources(MR) Possible A P M

Total 11 10 1 0 MR1 LifecycleAssessment 2 0 0 2

MR2 PavementReuse 4 5 0 0 5

Environment&Water(EW) Possible A P M MR3 EarthworkBalance 1 0 0 0

EW1 Environmental ManagementSystem 2 2 0 0 MR4 RecycledMaterials 1 5 2 1 2

EW2 RunoffFlowControl 1 3 3 0 0 MR5 Regional Materials 1 5 0 2 3

EW3 RunoffQuality 1 3 3 0 0 MR6 EnergyEfficiency 5 0 5 0

EW4 StormwaterCostAnalysis 1 1 0 0 Total 23 2 8 12

EW5 SiteVegetation 1 3 1 2 0

EW6 HabitatRestoration 3 0 0 0 PavementTechnologies(PT) Possible A P M

EW7 Ecological Connectivity 1 3 0 0 0 PT1 LongLifePavement 5 0 5 0

EW8 LightPollution 3 0 3 0 PT2 PermeablePavement 3 0 0 3

Total 21 10 5 0 PT3 WarmMix Asphalt 3 0 3 0

PT4 Cool Pavement 5 5 0 0

Access&Equity(AE) Possible A P M PT5 QuietPavement 2 3 0 0 0

AE1 SafetyAudit 1 2 0 2 0 PT6 PavementPerformanceTracking 1 0 0 0

AE2 IntelligentTransportationSystems 2 5 3 0 2 Total 20 5 8 3

AE3 ContextSensitiveSolutions 5 5 0 0

AE4 TrafficEmissions Reduction 5 0 5 0 CustomCredit(CC) Possible A P M

AE5 PedestrianAccess 1 2 2 0 0 CC1 UrbanHeatIslandEffect 5 0 0 5

AE6 BicycleAccess 1 2 2 0 0 CC2 TransitSafety 2 0 0 2

AE7 Transit&HOVAccess 1 5 0 0 4 CC3 MaintenanceDistricts 5 0 0 5

AE8 ScenicViews 2 0 0 0 Total 12 0 0 12

AE9 Cultural Outreach 1 2 2 0 0

Total 30 14 7 6 All11PRMet? N o Yes Yes

GreenroadsTotal 108 43 71 106

CertificationLevel E E

Credit Scorecard

PointTotals

A = Achievedbythisproject

P =Potential achievable withlowadditionaleffort

M =Maximumachievableregardlessofcost

CertificationLevels

C =Certified (AllPRsand32Points)

S =Silver (AllPRsand 43Points)

G = Gold (AllPRs and 54Points)

E =Evergreen (AllPRsand 64Points)


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November 3, 2010 8

CREDIT DISCUSSION BY CATEGORY

Thissectioncontainsadetailedreviewofcreditsawardedandnotawardedtothe14th

Street,MarketStreetto

ColfaxAvenueproject.Creditintentwillnotbediscussed,andthereaderisreferredtoAppendixAforthese

details.

PROJECT REQUIREMENTS (PR)Thisprojectmet10of11ProjectRequirements.TheseareoutlinedinTable4.

Table4:ProjectRequirementsCategory

*DenotesreferenceinStandardSpecifications,orinstitutionalbestpractice.

PR-1 Environmental Review Process

DETAILS

ThisProjectRequirementwasnotmetwiththesubmitteddocuments. ASustainabilityPlanningandCloseout

FormforProjectManagerswasprovided,whichincludesinformationontheprojectandkeyplayers,butdoesnot

includedescriptionsofthepotentialenvironmental,economicandsocialimpacts,theirsignificanceorthefinal

environmental

decisions

that

were

made.

A

description

of

public

workshops

and

breakout

groups

for

public

inputontheprojectwasalsoprovided.

RATIONALE

TheprojectwasnotrequiredtofollowNEPAstandardsbecausenofederalfundingwasinvolvedandthestateof

Coloradodoesnothavesimilarprocessrequirement. Toachievethisrequirement,theprojectneedstodefinethe

impactsthattheprojectwillhave,thesignificanceoftheseimpacts,andthedecisionsthatweremadetomitigate

theseimpacts.

PR-2 Lifecycle Cost Analysis (LCCA)

DETAILS

RealCostsoftwarewasusedtoevaluatethepavementimprovementoptions. Ashortreportwasprovided,stating

theassumptionsmade,inputs,andtheoutcomeofananalysiscomparinganasphaltoverlayorafulldepth

concretereplacement.

RATIONALE

TheRealCostoutputwiththegiveninputsandassumptionssuggeststhatanasphaltoverlaywillhaveapresent

valuelifetimecostofapproximately$1.05millionwhileaconcreteroadwaywillhaveapresentvaluelifetimecost

ofapproximately$2.36million.

PR-3 Lifecycle Inventory (LCI)

DETAILS

RequirementsMet RequirementsNotMet

No. Title No. Title

PR2 LifecycleCostAnalysis(LCCA) PR1 EnvironmentalReviewProcess

PR3 LifecycleInventory(LCI)

PR4 QualityControlPlan*

PR5 NoiseMitigationPlan*

PR6 WasteManagementPlan*

PR7 PollutionPreventionPlan*

PR8

LowImpact

Development

(LID)

PR9 PavementMaintenancePlan*

PR10 SiteMaintenancePlan

PR11 EducationalOutreach


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November 3, 2010 9

Thisrequirementhasbeenmet,asresultsfromPaLATEV2.0havebeenprovidedfortheproject. Theinputpage

wasnotprovided(astheProjectRequirementrequests).

RATIONALE

ThePaLATEoutputindicatesthatoverthelifeoftheproject,7,248GJofenergywillbeconsumedand1,149,232

kgofCO2willbeemitted.Itwasassumedthatonlyatoplayerwillneedtobereplacedinthedesignlifeof15

Yearsand

that

RCM/RAP

materials

will

not

be

removed

from

the

site

and

will

be

reused

within

the

project

area.

PR-4 Quality Control Plan

DETAILS

Completionofacontractorqualitycontrolplanisrequiredinthe14th

StreetContractorSustainability

RequirementsdocumentthatistobeattachedtotheBidPackage. Thisdocumenttakestherequirementsdirectly

fromtheGreenroadsManual,sotherequirementwillbemet.

RATIONALE

ThesubmissionoftheQCPisrequiredbeforeconstructionandmustbeapprovedofbytheowner.

PR-5 Noise Mitigation Plan

DETAILS

AnoisemitigationplanhasbeencreatedaccordingtotherequirementsofPR5. Acopyofthelocalnoise

mitigationordinancewasalsoprovided.

RATIONALE

Thepreparednoisemitigationplanmeetsallofthe10requirementsforallofconstructionandincluding

subcontractorwork.

PR-6 Waste Management Plan

DETAILS

ThefollowinglanguagewillbeincludedintheProjectSpecificationsandBidFormsfortheprimecontractor:

ContractortocompleteaConstructionandDemolitionWasteManagementPlan(CWMP)thatwillinclude,ata

minimumthe

following:

Type

of

construction

waste,

expected

(or

actual)

tonnage,

costs

and

fees

for

landfills,

recoveryfacilities,andhauling,contactinformationofresponsiblepartyforhauling,destinationofwaste(e.g.

recyclingfacility,landfill,contractorsbackyard),contactinformationofresponsiblepartyfordisposalsite.This

planistobecompletedatthebeginningofconstruction.

RATIONALE

ThisstatementfollowsexactlytheGreenroadsrequirements,soPR6shouldbeachievedisspecificationsare

followed.

PR-7 Pollution Prevention Plan

DETAILS

TheCityandCountyofDenverrequiresthecompletionofaConstructionActivitiesStormwaterDischargePermit

(CASDP)for

any

projects

that

disturb

more

than

1acre.

Since

this

project

disturbs

more

than

1acre

aCASDP

will

beacquired. Asapartofthispermittingprocess,aConstructionActivitiesStormwaterManagementPlan(CASMP)

willbecreated. TheCASMPistheequivalentofaSWPPP.

RATIONALE

SpecificationsrequirethecompletionofaCASMPwhichistheequivalentofaSWPPPandwillmeetthe

requirement.


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November 3, 2010 10

PR-8 Low-Impact Development (LID)

DETAILS

Soilboringdatawasprovidedforthisrequirementaswellasdescriptionsforthefollowingcategories:

topographicalassessment,soilsassessment,hydrologyassessment,siteevaluation,andLIDBMPs. Duetothe

urbannature,LIDoptionsarelimitedtowhateverwillfitintheROW,which,initsexistingstate,consistsofalmost

entirelyimpermeablesurfaces.

RATIONALE

TheLIDassessmentdeterminedthatmanyoptionswerenotfeasibleduetospaceconstraintsandduetothe

existingstructuresbeingalmostentirelyimpervious. Theyrecognizedtheuseofpermeablepaversandmore

vegetatedareastoincreasewaterqualityandreducerunoffvolume. Unfortunatelytheycannotuseporous

pavementsfortheroadwayastheCityofDenverdoesnthaveacurrentpolicyormeansformaintainingthese

pavements. Itwouldlikelycostsignificantlymoretoinstallporouspavements.

PR-9 Pavement Management Program

DETAILS

TheCityandCountyofDenverhasasysteminplaceforpavementmanagement. ItisthedTimsCTproducedand

managedby

Deighton

Associates

in

Toronto,

Ontario,

Canada.

A

description

of

this

system

was

provided

as

a

seconddocumentthatindicatesitcouldmeettherequirements.

RATIONALE

ThedTimsCTsystemhasthecapacitytomeetalltherequirementsofPR9,assumingthatconditionassessments

aretakenatleasteverytwoyears.

PR-10 Site Maintenance Plan

DETAILS

Documentationindicatesthatmultipleentitieswillberesponsibleformaintainingtheproject. Thisincludes

privatelandowners,theGeneralImprovementDistrict,BusinessImprovementDistrict,andtheCityandCountyof

Denver. Twoimprovementzoneswerecreatedfortheproject,thestandardzoneandpremiumzone. Baseimprovementswillbeprovidedforbothzones,whileadditionalelementsthatsupportthevisionforthecorridor

willbeprovidedinthepremiumzone. Alistofeachitemwasproducedtoaddresstheresponsible

parties/organizations,schedule,methods,andfunding. Thisdocumentdoesnotspecificallysaywhatmethodswill

beusedforroadwayreplacementbutthishasbeenmentionedelsewhereinthedocuments,suchasintheLCCA

forPR2. FundingwasdescribedintheMasterGreenroadsdocumentprovided.

RATIONALE

AlloftheitemsintherequirementsareaddressedintheSiteMaintenanceTable,includingtheresponsibleparties,

maintenanceandreplacementscheduleandinotherdocumentsprovided.

PR-11 Educational Outreach

DETAILSFoureducationaloutreachitemswereselectedforthisprojectasfollows:

1. Monumentsprovidingdirectionalsignagetodestinationsalongthecorridorwillbeinstalled. Greenroads

PilotProjectsignagewillalsobeinstalled. Theadditionofsignagewillrequirereviewandapprovalfrom

theCityandCountyofDenver

2. Atleasttwopresentationsabouttheprojectwillbegiventoareaschools,withthefocusontheaterand

publicart.


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November 3, 2010 11

3. AtechnicalproposalonthecorridorisplannedattheASCEGreenStreetsandHighwaysConferencein

November2010.

4. Theresearchprojectcurrentlyunderwaycouldprovideaframeworkforareportontheexperienceof

workingthroughGreenroads.

RATIONALE

TheProject

Requirement

requires

that

three

of

these

items

be

completed

and

documented.

These

four

items

shouldmeetthisrequirement,providedthefollowingisprovideduponcompletion:

1. Photosoftemporaryandpermanentsignsinstalledintherightofway.

2. Copiesofeachpresentationandthetimeanddateofeachpresentationmadeatareaschools

3. AcopyoftheabstractalongwiththepresentationfortheASCEGreenStreetsandHighwaysConference.

4. Acopyofthecompletedcasestudy

ENVIRONMENT & WATER (EW)

Thisprojectearned10ofthe21pointsavailableinthiscategory.Amajorityofthecreditsearnedarerelatedtothe

useofpermeablepaversanddecreasedareaofimpermeablesurfaces. Thecreditsearnedinthiscategoryare

outlinedinTable5.

Table5:Environment&WaterVoluntaryCreditCategory

EW-1 Environmental Management System

DETAILS

ParsonsBrinckerhoffswillbeservingastheconstructionmanagementfirmfortheproject. ParsonsBrinkerhoff

suppliedtheircurrentISO14001:2004certificatetomeetthiscredit.

RATIONALE

TheconstructionmanagementfirmisappropriatelyISOcertifiedtomeetthecredit. Thedocumentdoesindicated

recertificationrequiredJuly8,2010. Therecertificationwouldneedtobeverifiedtoearnthiscredit.

EW-2 Runoff Flow Control

DETAILS

StormwatercalculationswereprovidedforbothEW2andEW3. Thesecalculationsindicatedthattheinitialflow

conditionshavearunoffvolumeof31,935ft3,aflowrateof20.75cfs,andatimeofconcentrationof20minutes.

Their

calculations

indicate

that

the

new

flow

conditions

will

have

a

runoff

volume

of

29,400

ft

3

,

a

flowrate

of

19.76

cfs,andasaturationrateof20minutes. Thesecalculationsarebasedoffofan80th

percentileaverageannual

rainfallevent,theequivalentofa2yearstormevent,whichismoreconservativethantherequested90th

percentileaverageannualrainfallevent. DocumentationisalsoprovidedforthedesignBMPs(permeablepavers

andUltraUrbanfilters)andtheexpectedflowcontrolperformancecriteria

RATIONALE

Thecalculationssuggestthatthenewdesignshouldhave105%ofthepredevelopmentflowcontrolandwillhave

smallerrunoffvolumeaswell,earningtheproject3points.

CreditsEarned CreditsNotEarned

No. Title No. Title

EW1 EnvironmentalManagementSystem EW6 HabitatRestoration

EW2 RunoffQuantity EW7 EcologicalConnectivity

EW3 RunoffQuality EW8 LightPollution

EW4 StormwaterCostAnalysis

EW5 SiteVegetation


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November 3, 2010 12

EW-3 Runoff Quality

DETAILS

DocumentationindicatesthatallstormwaterrunoffwillbetreatedbytheinstalledBMPs. UNIEcostone

permeablepaverswillbeusedforinfiltrationandwillremoveallTSS. AbtechsUltraUrbanFilterswillbeinstalled

onalldrainageinlets. PerAbtechsspecifications,watertreatedbytheUltraUrbanFilterwillataminimumhave

theTSSreducedby50%. WiththeexpectedflowthrougheachoftheseBMPsitisexpectedthattherewillbeaTSS

reductionof

25.6%

in

the

total

effluent,

with

the

total

of

all

effluent

from

the

site

entering

Cherry

Creek

being

18.98mg/L.

RATIONALE

TheTSSconcentrations,ascalculated,arelowenoughtomeettherequirementsofthiscreditand100%ofthe

runoffvolumewillbetreated. Aformaldrainagedesignreportwasnotprovided,aswouldberequiredfor

Greenroadscertification,butallofthecreditrequirementsweremettoachieve3points.

EW-4 Stormwater Cost Analysis

DETAILS

ALCCAspreadsheetwasprovidedshowingtheexpectedservicelife,constructioncosts,maintenancecosts,

interestrate,salvagevalue,andestimatedannualcostofthestormwatermanagementsystem. Theircalculations

indicatethat

the

traditional

below

grade

water

treatment

system

would

have

an

estimated

annual

cost

of

$58,937,

whiletheLIDsystemwillhaveanestimatedannualcostof$43,872.

RATIONALE

Theprovidedspreadsheetshowsalloftherequirementsforboththetraditionalbelowgradestormwatersystems

andtheproposedLIDsystem,earningtheproject1point.

EW-5 Site Vegetation

DETAILS

ProvidedwereSiteVegetationPlantingSpecifications,aDenverCityForrestersOfficelistofapprovednoninvasive

treespecies,andtheSiteVegetationPlanSheets. TheCityandCountyofDenverhasarecommendedtreelistbut

donothaveasimilarlistforseeditems.

RATIONALE

Theystatethatallvegetationchosenfortheprojectisconsiderednoninvasive,butthattheprojectcannot

committonowateruseortheuseofonlynativeplantspecies. Thisearnstheproject1point.

EW-6 Habitat Restoration

DETAILS

Thiscreditwasnotachievedorattempted.

RATIONALE

Thiscreditisnotapplicabletothisprojectasitisinanentirelyurbanareathatnolongercontainsanynatural

habitats. Also,theprojecthasverylimitedspace,restrictedtothestreetrightofwaythatdoesnotcontainany

opportunitiesfor

off

site

habitat

improvement

anywhere

near

the

project.

EW-7 Ecological Connectivity

DETAILS

Thiscreditisnotapplicabletothisurbanproject.

RATIONALE


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November 3, 2010 13

Awildlifeassessmentwasnotperformedfortheproject,asitisacompletelyurbanenvironmentandthereisnot

anynaturalwildlifeofconcerninthearea. Therearenocurrentwildlifecrossingareasandthereareveryfewif

anyvehiclewildlifecollisionsinthecorridor.

EW-8 Light Pollution

DETAILS

Thiscredit

was

not

achieved,

as

the

installed

lighting

in

not

Dark

Sky

Certified.

As

described

below

the

lighting

systemwasdesignedusinglowwattagebulbsthatifconsideredseparateareundertherequiredmaximum

wattage. Thelampsarealsorequiredtobefullyshielded,whichcannotbeverifiedusingtheprovidedplans.

RATIONALE

TheluminairesthatwillbeusedalongtheroadwayarestandardXcelEnergyluminaires.Theluminaireshavethree

separatelights:twoforpedestriansandonefortraffic.Thetrafficlightsuselowerwattagebulbsthanarenormally

usedinroadwaylighting.ThestreetislocatedinthetheatredistrictofdowntownDenverandisheavilylighted

duringthenighttimehoursalready.DarkSkystandardsrequirethatluminairesarebelow250watts.Whilethe

totalwattageoftheluminaireson14thStreetis275watts,thepedestrianlightsare110wattsandtheroadway

lightis165watts.Thepedestrianlightsareeach55watt,3000K,QLinductionlampsystemwhichproduces3,500

initiallumens.

ACCESS & EQUITY (AE)

Thisprojectearned14ofthe30pointsavailableinthiscategory. TheprimaryimprovementtoAccess&Equityis

theinclusionofabikelaneandimprovedpedestrianfacilities. ThecreditsareoutlinedinTable6.

Table6:Access&EquityVoluntaryCreditCategory

AE-1 Safety Audit

DETAILS

Thiscreditwasnotpursuedandnopointswereearned.

RATIONALE

TheCityandCountyofDenverPublicWorksstaffindicatedthattheyarenotfamiliarwithroadsafetyaudit

programsanddonothaveonethatmeetstheRSAguidelines.SincetheCitydoesnotadheretoFHWA

requirements,theydonotimplementprogramsofthistype.

AE-2 Intelligent Transportation SystemsDETAILS

ITSplanpageshavebeenprovidedshowingtheuseofthreeITSsystems. Thisissufficienttoearntheproject3

points.

RATIONALE

ThethreeITSsystemstobeinstalledare:

1) Category:TrafficControl;Application:BicycleandPedestrian


No. Title No. Title

AE2 IntelligentTransportationSystems AE1 SafetyAudit

AE3 ContextSensitiveSolutions AE4 TrafficEmissions Reduction

AE5 PedestrianAccess AE7 TransitandHOVAccess

AE6 BicycleAccess AE8 ScenicViews

AE9

CulturalOutreach


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November 3, 2010 14

Withtheadditionofadedicatedbikelaneonthestreet,newbicyclesignsandsymbolsareneeded.

Pages8285ofthe90%plans,whichwereprovided,showagraphicoftheproposedsignagelocations.

ThissignagewillreplacetheexistingSharetheRoadsignssincebicyclistscurrentlyrideinmixedtraffic.

2) Category:LaneManagement;Application:LaneControl

Twothroughlanesareproposedontheproject.Thethirdlanewillserveasaflexlane,withvehicles

allowedduringthepeakhourof4pm6pmand2hourmeteredparkingatallothertimes.Newsignage

willbe

placed

along

the

corridor

to

inform

users

of

the

flex

lane

function.

Plan

sheets

of

the

90%

plans

wereprovided.

3) Category:WarningSystems;Application:PedestrianSafety

Pedestriansignageandpedestriancountdownsignalswillbeaddedalongthecorridoratintersectionsto

ensurepedestriansafetyandmobility.90%plansheetswereprovided. Newpedestrianwarningsignage

isalsoplannedatStoutStreetwheretheexistingRTDlightraillinecrosses14thStreet.Thissignageisnot

yetintheplansbutwillbeinthebidsetonceapprovedbyRTDandtheCity.

Photosofeachsystemneedtobeprovided,onceinstalled,forcertification.

AE-3 Context Sensitive Solutions

DETAILS

ACSS

white

paper

has

been

completed

for

the

project

that

described

the

10

Greenroads

listed

items.

A

Bicycle

PlanAccessSheet,PedestrianPlanAccessSheet,andStrategicTransportationPlanwerealsoprovidedinsupport

ofthewhitepaper,earningtheprojectfivepoints

RATIONALE

ThiswhitepaperdetailstheplanningprocessandaddresseseachoftheitemsaskedforinAE3. Formoredetails

seetheactualdocumentprovided.

AE-4 Traffic Emissions Reduction

DETAILS

Theprojectchosetomeet#1ofthethreelistedoptionstomeetthiscredit. TheCityandCountyofDenvers

GreenPrintDenver

plan

published

in

July

2006

states

the

following

goal:

Completeupdatedinventoryofgreenhousegasesandbeginsubstantialprogresstowarda10%reductioninper

capitagreenhousegasemissionsfromthe1990emissionratebytheyear2012,inconformitywiththeU.S.Mayors

ClimateAgreement.

ThisgoalismoreaggressivethantheminimumGreenroadsrequirementofa10%reductionof1990valuesby

2030. ThefulldocumentwasprovidedtoGreenroadsforreview.

RATIONALE

Therequiredgreenhousegasemissionsstandardsarespecifiedtobemetbuttherewasnomentionofcriteriaair

pollutantsreduction,asrequired. Theprojectdoesnotmeeteitheroftheothertwooptionsforthiscredit,but

couldearnthefullfivepointsformeetingthefirstoptioniftheemissionsreductionregulationsalsoincluded

mandatesforcriteriaairpollutantreductionsbelowcurrentEPAstandards. Thiscouldbeeasilyachievedwithaslightchangetothecityemissionsreductionplan.


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November 3, 2010 15

AE-5 Pedestrian Access

DETAILS

DetailswereprovidedintheCSSwhitepaper(AE3,#7)forphysicalchangesthatweremadetotheroadwayto

providebetterpedestrianaccess. Theexistingroadwayconsistedof12footsidewalks,four11footthrough/turn

lanes,and8footparkinglanes. Thatisbeingchangedtotheconfigurationinthepicturebelow.

Figure3:Typical14th

StreetConfiguration

ThismeansthatfouradditionalfeetwillbeaddedtothesidewalkontheNorthsideofthestreetandseven

additionalfeetwillbeaddedtotheSouthside. The19footwidthonthesouthsideincludesan8footpatiozone,

5footpedestrianzoneanda6footamenityzone.The16footwidthonthenorthsideincludesan8footamenity

zoneand

8foot

pedestrian

zone.

The

wider

sidewalks

will

facilitate

outdoor

dining

and

will

provide

awider

pedestrianwalkspacewhilehelpingmeettheCityandCountys2004PedestrianMasterPlantohavesidewalksat

least16feetwidewherepossible. Extensivelandscapingwillbeconstructedprimarilythrough3060footplanter

boxes,andstreettreesintheplanterboxesandinseparatepaverareastocreateatrulyGreenStreet.Bulbouts

areplannedateachintersectiontoshortenthepedestriancrossingdistanceandtocalmtraffic. Publicinputwas

acquiredfromeachofthelandownersalongthecorridor,whowereinsupportofadditionalpedestrianfacilities.

Thecosttoinstallthesidewalkwith6inchesofPCCalongthecorridoris$739,765.

RATIONALE

Theprojectwouldearnthefulltwopointsforthewideningofsidewalks,crosswalks,andtheadditionofbulbouts.

Theplanterboxesandothersidewalkadditionshelptomakeitamoreenjoyablecorridorandhelptheprojectget

othercreditssuchasEW2andEW3.

AE-6 Bicycle Access

DETAILS

Theadditionofadedicatedbicyclelaneisoutlinedin#8ofAE3. Therewillbea5footwidededicatedbikelane

betweenthethroughlanesandthededicatedparkinglaneontheNorthside. Theexistingroadwaysimplyhas

bicyclessharingthethroughlaneswithtraffic,withsharrowsindicatingthepresenceofbicycles.

TheCherryCreekBikePathisaregionaltraillocatedalongCherryCreektwoblockssouthofthecorridor.The14th

Streetbikepathwillhelpfacilitateconnectionstothislargerregionaltrailaswellastothestripedlanes


16/28


November 3, 2010 16

intersecting14thatArapahoeStandGlenarmSt. Inaddition,anewbicyclelanecouldhelpfurthertheCitysgoal

toincreasethebicyclecommutetripsfrom1.6%(asdocumentedinthe2007AmericanCommunitySurvey)to10

percentby2018agoalstatedbyMayorHickenlooperandPublicWorksManagerBillVidal. Inadditiontothe

bicyclelaneitself,theprojectwillfund121bikerackstobeplacedalongthe12blocklengthofthecorridor. In

April2010,theCityandCountyofDenverrolledouttheBCycleprogram.Thisisacitywideinitiativetoplace55

sharedbicyclestationsacrosstheCity.Threeofthosestationswillbelocatedalong14thStreetoneat14thand

Larimer,one

at

14th

and

Champa,

and

one

at

14th

and

Welton

(at

the

Convention

Center).

Publicinputhasbeenpositiveconcerningtheadditionofabikelane. Manyseetheneedtoconvertshared

bicycle/vehicularlanestodesignatedbikelanes. Stripingthebikelanewillbeanominaladditionalcostwhenthe

restoftheroadstripingisdone.Thepurchaseandinstallationofthe121bikeracksisexpectedtocost$75,000.

RATIONALE

Theprojectisperformingallthenecessaryanalysesandphysicalroadwaychangestoearnthefulltwopoints. The

dedicated5footlaneandconnectionstootherdedicatedbicyclefacilitiesmakethisavaluablepieceto

encouragingmorebicycleuse.

AE-7 Transit and HOV Access

DETAILS

Thisprojectdidnotimprovetransitroutesalongthecorridor. ThereareseveralbusroutesandtheRTDlightrail

thatcross14th

Streetatvariousintersections. Theprojectdidtrytoimproveaccommodationsforthelightrailand

bussesbyaddingtactilewarningstrips,staticsignage,andrealtimeflashingwarningsignswherepedestriansneed

tocrossthelightrailtracks. Thebulboutsweredesignedwiththebusroutesinmindtoaccommodatecrossing

routesandnewlightingshouldimprovesafetyatcrossstreetbusstops.

RATIONALE

Thiscreditwasnotpursuedandisnotapplicablesincetherearenotransitroutesalongthecorridor.

AE-8 Scenic Views

DETAILSThisprojectisinanentirelyurbanareaandcannotachievethiscredit. TherearenoNationalScenicBywaysorany

equivalentneartheproject.

RATIONALE

Thiscreditisnotapplicable

AE-9 Cultural Outreach

DETAILS

Aminimumof1%ofthetotalprojectbudget($160,000)willbededicatedtopublicartinstallationsalongthe

roadwayrightofway.ThisisstandardforallpublicprojectsconductedwithintheCityandCountyofDenver. In

themonthsofMarchandApril2010,over250artistsrespondedtoacallforartistsforthecorridor.Eachartist

developedan

idea

for

art

along

the

corridor.

Public

presentations

were

held

in

April

2010

to

review

and

comment

onthevariousideas. AnartistisanticipatedtobeselectedinSummer2010.

RATIONALE

Thiswouldearntheprojectthefulltwopoints. Photographsofthefinalinstalledartworkandacopyofthe

projectbudgetwouldneedtobesubmitted.


17/28


November 3, 2010 17

CONSTRUCTION ACTIVITIES (CA)

Forthiscategory,12ofthe14possiblepointswereearned. The14th

StreetContractorSustainability

Requirementsdocumentasksthecontractortoachieveeachofthecreditsinthissection. Thesecreditsareall

contingentontheselectedcontractorcomplyingwiththeprojectspecificationsascurrentlywritten.Itispossible

that,throughchangeordersorothernegotiations,theserequirementswillchange.Thus,thesecreditsmustbe

verifieduponcompletionofconstructionbeforepointscanbeawarded.ThecreditsareshowninTable7.

Table7:ConstructionActivitiesVoluntaryCreditCategory

CA-1 Quality Management System

DETAILS

Aprimecontractorhasnotyetbeenbidorselectedforthisproject. TheCityandCountyofDenverplanstohandle

theConstructionManagementoftheproject. ItispossiblethatParsonsBrinckerhoffcouldhavearolein

ConstructionManagement.AcopyofthePBISO9001:2008certificate(CertificateRegistrationNo.10001797

QM08)wasprovided.

RATIONALE

AssumingPBdoesendupperformingtheConstructionManagementoftheprojectthiscreditwillbeachieved.

CA-2 Environmental TrainingDETAILS

ThefollowingdocumentationwasplacedintheContractorSpecifications:EnvironmentalTraining:Provide

constructionpersonnelwiththetrainingtoidentifyenvironmentalissuesandbestpracticemethodstominimize

environmentalimpact. UsedefinitionsperGreenroadsv1.0,CA2. Provideanenvironmentaltrainingplanandany

updatestotheplanthatoccurthroughouttheconstructionprocess.

RATIONALE

ThespecificationsweretakendirectlyfromGreenroadsV1.0,sothiscreditshouldbeachieved.

CA-3 Site Recycling Plan

DETAILS

Aform

for

aSite

Recycling

Plan

was

provided

in

the

14th

Street

Contractor

Sustainability

Requirementsdocument

asdescribedinthiscredit. Itisalsospecifiedthatthecontractormustputthefollowingintosubcontractor

agreements:

"Thesubcontractorwillmakeagoodfaithefforttoreducetheamountofwastegeneratedonthejobsiteand

recyclematerialasperthecontractor'swastemanagementplan.Thesubcontractorwillfollowthedesignated

handlingproceduresforeachtypeofwastegeneratedonsiteandprovidedocumentationtoverifymaterialreuse,

recyclinganddisposalasindicatedinthewastemanagementplan."


No. Title No. Title

CA1 QualityManagementSystem

CA2 Environmental Training

CA3 SiteRecyclingPlan

CA4 FossilFuelReduction

CA5 EquipmentEmissionReduction

CA6 PavingEmissionReduction

CA7 WaterUseTracking

CA

8

Contractor

Warranty


18/28


November 3, 2010 18

RATIONALE

Thisdocumentshouldhelpreducetheamountofwasteproducedandmeettherequirementsofthiscredittoearn

1point.

CA-4 Fossil Fuel Reduction

DETAILS

Accordingto

the

website

http://findbiodiesel.org/US/CO/Denver

nine

biodiesel

stations

are

located

within

50

milesofDenver.Fiveofthosestationsarewithin10milesoftheprojectsiteinDowntownDenver.AsofJanuary

2010,theUSDepartmentofEnergywasreportingaveragecostsofB20tobe9centspergallonhigherthan

petroleumdiesel.Incontrast,B100fuelwouldbe72centshigherthandieselgasoline,whichisasubstantial

increase.Blendsof20percentbiodieselwith80percentpetroleumdiesel(B20)cangenerallybeusedin

unmodifieddieselengines.MostenginemanufacturersallowB5andsomeallowuptoB20undertheircurrent

warranties. Theowneriscommittingtoachievethiscreditbystatinginthe14thStreetContractorSustainability

RequirementsdocumentthattheprojectwillusealternativefuelsduringconstructionbyrequiringBiodiesel20in

allconstructionvehicles. Thiswouldensurea20%reductioninfossilfueluse. Theprimecontractormustsubmita

signedletterwiththefossilfuelreductionmeasuresusedandpercentagereductionachievedinadditiontoa

spreadsheetofallfuelused.

RATIONALEThoughthenecessarydeliverablescannotyetbeprovidedtheowneriscommittingtoachievingthiscreditby

includingcontractorrequirementsinthe14thStreetContractorSustainabilityRequirementsdocument. The

projectwouldachieve1point.

CA-5 Equipment Emission Reduction

DETAILS

Thefollowinghasbeenplacedinthe14thStreetContractorSustainabilityRequirements:Atleast50%ofthe

nonroadconstructionequipmentfleetoperatinghoursfortheprojectwillbeaccomplishedonequipmentwith

installedemissionreductionexhaustretrofitsandaddonfuelefficiencytechnologiesthatachievetheEPATier4

emissionstandard.Furtherdiscussionswiththecontractorfortheprojectwillbeneededtoconfirmthattheyare

abletomeettheTier4emissionstandardwiththeequipmentavailable.

RATIONALE

Thecontractorisbeingaskedtomeeta50%EPATier4requirementwhichwouldearntheproject1point. Upon

completionthesupportingdocumentationtoconfirmthecreditwasmetwouldneedtobesubmitted.Thiscredit

maybedifficulttoachievesincetherearecurrentlyfewnonroadvehiclesthatmeetEPATier4requirements.

CA-6 Paving Emission Reduction

DETAILS

A90%NIOSHemissionsapprovedpaverrequirementwasaddedtothe14thStreetContractorSustainability

Requirementsdocument.

RATIONALE

Thecontractor

will

be

required

to

meet

this

credit,

earning

the

project

1point.

A

copy

of

this

certification

and

asignedstatementfromthepavingcontractorwouldneedtobeprovidedshowingthatthecreditwasmet.

CA-7 Water Use Tracking

DETAILS

Acontractorrequirementwasaddedtothe14thStreetContractorSustainabilityRequirementsdetailing

everythingthatshouldbeintheWaterUseTrackingDocument.

RATIONALE


19/28


November 3, 2010 19

ThecontractorrequirementsweredirectlyfromtheGreenroadscreditrequirementssothiscreditshouldearn2

pointsuponsubmissionofthefinaldocuments.

CA-8 Contractor Warranty

DETAILS

TheCityandCountyofDenverPublicWorksDepartmentrequiresthattheContractorswarrantiesandguarantees

arefor

athree

year

period.

Title

18

(Section

1801,

Page

68)

of

the

City

and

County

of

Denvers

General

Contract

Conditionsstatesthat:TheContractorswarrantiesandguaranteesforallWorkcomponentsshallcontinueforthe

followingperiods:ForContractsexecutedundertheauthorityoftheManagerofPublicWorks,foraperiodof

three(3)yearsafterthedateofFinalInspectionforWorkperformedwithinthePublicRightofWayorpermanent

easementsheldbytheCity,orforaperiodofone(1)yearafterthedateofSubstantialCompletionforWork

constructedoutsideofthePublicRightofWay,inaccordancewithGC1902,orforsuchlongerperiodoftimeas

maybeprescribedbythetermsofanyspecialwarrantiesandguaranteesrequiredbytheContractDocuments.

TheCitysGeneralContractConditionswereprovided.

RATIONALE

TheGeneralContractConditionsrequireawarrantyasdescribedinthiscreditandwouldearntheproject3points.

MATERIALS & RESOURCES (MR)Forthiscategory,2ofthe23possiblevoluntarycreditsareearned. Theonlypointsearnedareforrecycled

materials. Itappearsthattheprojectcouldgetpointsforusingregionalmaterialsaswell,butuntilacontractoris

selectedandmaterialsareacquireditishardtoknow. ThesecreditsareoutlinedinTable8.

Table8:Materials&ResourcesVoluntaryCreditCategory

MR-1 Lifecycle Assessment (LCA)

DETAILS

Thiscreditwillnotbecompletedaspartofthisanalysis. ThehiringofaLCAcertifiedpersonorconsultantto

performthiscreditwasoutsideofthedesiredscopeofthisproject.

RATIONALE

Thiscreditwasnotattempted.

MR-2 Pavement Reuse

DETAILS

Thetotalproject,newpavement,andreusevolumesforbothasphaltandconcreteareshowninFigure4below.

Thetotalpercentageofreusedpavementintheprojectis47%.Theexistingconcreteandasphaltpavementwillbe

reusedwithintheprojectlimitswhereitisingoodconditionanddoesnotconflictwiththegradingofthe

proposedcurbandgutter.Asphaltpavementthatisreusedwillbemilledanda2inchoverlaywillbeaddedtothe

pavementtoprolongtheservicelife.Theconcretethatwillbereusedwillremaininplacewithnoadditional

changestoit.


No. Title No. Title

MR4 RecycledMaterials MR1 LifecycleAssessment(LCA)

MR2 PavementReuse

MR3 EarthworkBalance

MR5 RegionalMaterials

MR

6 Energy

Efficiency


20/28


November 3, 2010 20

Figure4:PavementReuseQuantities

RATIONALE

Theprojectwillnotachievetheminimumrequirementof80%reusetoachieveanypointsandwouldneed

significantimprovementstoreachthat.

MR-3 Earthwork Balance

DETAILS

Thiscreditisnotapplicableastherewillbenocuttingandfillingoccurringfortheproject.

RATIONALE

Thiscreditisnotapplicable.

MR-4 Recycled Materials

DETAILS

ThefractionofrecycledmaterialswascalculatedusingOption2.Aspreadsheetthatdocumentsthetotalweightof

HMAandPCC,thetotalweightofrecycledmaterials,andthecomputedARCfortheprojectwassubmitted.The

ARCfortheprojectis24.61%.Acopyoftheapproveddesignmixforthepavementmaterialsisnotavailable.

RATIONALE

The24.61%recycledcontendwouldbegoodfor2points. Toearnthepointsacopyoftheapprovedmixdesigns

aswell

as

all

supporting

test

documents

(proportioning

records,

mix

tickets,

etc.)

would

need

to

be

submitted.

MR-5 Regional Materials

DETAILS

Acalculationwasdonebasedonoption1.Sincetheprojecthasnotgonetoadvertisementyet,aconstruction

contractorisnotinplace. Duetothis,theexactlocationofalloftheconstructionmaterialsisunknown.Outof

165constructionitems,thesourcelocationfor100ofthemisunknownatthistime.Fortheother65items,a

reasonableassumptionofthesourcelocationwasmade.Onceacontractorisinplace,thesourcelocationsofthe

materialsshouldbeknowntoagreaterextent.However,basedontheassumptionsmadeforthe65items,the

total%ofmaterialsourcedfromwithin50milesoftheprojectareais52%.Thecalculationssupportingthiscredit

wereprovided.

RATIONALE

Basedonthispreliminarycalculationtheprojectwouldnotreceiveanypointsbasedon52%ofthematerials

comingfromwithin50milesoftheproject. Itappearsfromthespreadsheetthatmostoftheknownmaterial

suppliersarefromwithina50milerangeandthatmanyoftheunknownmaterialscouldalsocomefromwithin50

miles. Itseemsthatpointscouldbeearnedforthisonceacontractissignedandmoreofthematerialsare

located.


21/28


November 3, 2010 21

MR-6 Energy Efficiency

DETAILS

Theluminaireson14thStreetdonotmeettherequirementsforthiscreditastheyarestandardinduction

luminairesbyXcelEnergy.

RATIONALE

Thiscredit

was

not

pursued.

PAVEMENT TECHNOLOGIES (PT)

Forthiscategory,5ofthe20possiblevoluntarycreditswereearned. Theonlycreditearnedinthiscategoryis

CoolPavement. Thisisbecauseamajorityoftheimpermeablesurfaceareawillbeconcretesidewalks,whichhave

ahighalbedoandqualifyforcoolpavements. ThecreditsareshowninTable9.

Table9:PavementTechnologiesVoluntaryCreditCategory

PT-1 Long Life Pavement

DETAILS

The14thStreetMarkettoColfaxAvenueFinalGeotechnicalandPavementReportwasprovidedforthiscredit. The

proposed14thStreetprojectincludesthereconstructingorupgradingofpavementbetweenMarketStreetand

ColfaxAvenuedependingonpavementcondition.Theconstructionwillconsistofmillingandoverlayor

reconstructingthepavementon14thStreetdependingontheconditionoftheexistingasphaltmatorconcrete

surfaceandnewstreetscapingimprovementsinadjacentareas. ThereportindicatesthatHMApavingforthe

mainline14th

Street

new

pavement

will

be

11.5

inches

thick,

intersections

will

be

12.5

inches

thick

and

overlay

sections. AllPCCsectionswillbepaved10inchesthick. TheHMApavementshavebeendesignedfor20yearlife

andPCCpavementswitha30yearlife,havinglifetimeequivalentsingleaxleloads(ESALs)of5,945,743and

9,236,838respectively. AccordingtoFigurePT1.1intheGreenroadsmanualthenewHMAsectionswilllikely

meetthelongliferequirement,assumingtheminimumsubgradeCBRandminimumbasematerialCBRaremet.

ThePCCpavementsdonotappearinitiallytomeettherequirements. SomeoftheHMAoverlaysectionsmay

meettherequirements,butitwillvarybyexistingpavementthickness.

RATIONALE

Inordertoachievethiscreditmorecalculationswouldneedtobedonetoshowthattheinstalledpavementsmeet

therequirements. BesidesthelifetimeESALcalculations,thesubgradeCBRandbasematerialCBRwouldneedto

beprovidedtoshowthattheminimumrequirementsweremet. Theprojectmaybeabletoachievethiscredit.

PT-2 Permeable Pavement

DETAILS

Acombinationofpermeablepavers(UNIEcoStone)andUltraUrbanfilterswillbeusedtocontrolandtreatthe

90thpercentileaverageannualrainfalleventpostconstructionrunoff. Thepaversandplanterscombinedwill

treat2,535ft3ofthetotalrunoffareaof31,935ft

3.Thisrepresentsapproximately7.9%oftherunofftreated

throughpermeablepaversandplanters.Thus,thisisbelowthe50%minimumthresholdforthiscredit.

Documentationwasprovidedforthesecalculations.


No. Title No. Title

PT4 CoolPavement PT1 LongLifePavement

PT

2 Permeable

Pavement

PT3 WarmMixAsphalt

PT5 QuietPavement

PT6 PavementPerformanceTracking


22/28


November 3, 2010 22

RATIONALE

Notenoughsurfaceareaistreatedbytheamountofpermeablepaversbeinginstalled.

PT-3 Warm Mix Asphalt

DETAILS

TheCityandCountyofDenverwillnotapprovetheuseofWarmMixAsphaltontheproject.Theywill,however,

allowthe

project

team

to

include

avalue

engineering

option

for

contractors

to

use

WMA

for

patching

and

full

depthpavement.IfWarmMixAsphaltisused,theCCDwillrequirethecontractortodoanumberofdurability

testsfortheWMApriortoapproval.Astatementtothiseffecthasbeenplacedinthe14thStreetContractor

SustainabilityRequirements.

RATIONALE

Thiscreditisnotcurrentlybeingpursued.

PT-4 Cool Pavement

DETAILS

Thisprojectwillhaveapavementsurfacewithaminimumalbedoof0.3for56.9%ofthetotalprojectpavement

surfacingbyarea,asshownbythefollowing:

BaseBid

TotalProjectPavedArea:41,654.98SquareYards(SY)

LSA(LightSurfaceArea):23,695.63SY

Project%CoolPavement:56.9%

Thiscalculationisnotbackedwithanyalbedotestresultscurrently.

RATIONALE

Accordingtothecalculationtheprojectwillmeetthe50%requirementforcoolpavements. Toachievethiscredit

albedotestresults,aphotoofthepavementwithcoolpavementareasidentified,andaplanshowingthelocations

ofcoolpavementswouldneedtobeprovided.

PT-5 Quiet Pavement

DETAILS

Thiscreditdoesnotapplybecausepostedspeedlimitsareunder30milesperhour.

RATIONALE

Thiscreditisnotapplicabletothisproject.

PT-6 Pavement Performance Tracking

DETAILS

TheCityhasapavementmanagementsysteminplace(describedinPR9PavementManagementSystem).

However,theCitydoesnothavetheresourcestoperformanetworkwideconditionassessmentontwoyear

intervals.The

City

conducts

assessments

based

on

measured

distresses

in

block

long

segments.

They

assess

streets

every5or6yearsandthePMSsoftwareusesdeteriorationcurvestoprojectdecliningPCIvaluesannually.

RATIONALE

TheCityandCountyofDenverdoesnotcurrentlyhavetheresourcestoattainthiscredit.


23/28


November 3, 2010 23

POTENTIAL CUSTOM CREDITS

ThreebestpracticesimplementedonthisprojectwereidentifiedaspotentialCustomCredits.Atotalof12

additionalpointsaresuggested.CC1wouldlikelyfitintheEnvironment&watercategorywhileCC2andCC3

wouldlikelyfitintotheAccess&Equity.SomeresearchhasbeencompletedbyParsonsBrinckerhoff,butthe

GreenroadsDevelopmentTeamwillneedrevieweachcredittoensuretheymeetthesamestandardsasother

credits. Ifthecreditsmeetthesestandards,theywillearnpointsforthisprojectandbeincorporatedintolater

versionsoftheratingsystem. Table10providesthecredittitlesandintent.

Table10:PotentialCustomCredits

RECOMMENDATIONS

Onlyone

of

the

Project

Requirement

is

not

currently

met.

To

become

Greenroads

certified

PR

1Environmental

ReviewProcesswouldneedtobecompletedbydefiningtheenvironmentalimpacts,theirsignificance,and

howtheywillbemitigated.

AE4TrafficEmissionsReduction,MR5RegionalMaterials,andPT1LongLifePavementarecreditsthatseem

achievablewithlowadditionaleffort. Theprojectappearstobeontracktoachievethesecreditswithsome

minorchangesoradditionalcalculations.

Manyofthecreditsthatarecurrentlyshownasachievedstillrequiresubmissionofadditionaldocumentsupon

completionforproof. ThisincludesalmostalloftheConstructionActivitiescreditsbecausetheywillbe

performedduringconstruction. Carefultrackingofcontractorprogresswillberequiredtoensurethatthese

creditsareachieved.

TheproposedcustomcreditswillrequirefurtherresearchanddiscussionbetweenGreenroadsandtheproject

teamtoevaluatethemeritandvalueofeachproposedcredit. Theprojectscorecardcurrentlyshowsthe

customcreditsintheMaximumPossiblecategory,astheGreenroadsteamdoesnotwanttounfairlyshow

achievementthatmaynotprovetobepossible. Ifcustomcreditsareeventuallygranted,theywillonlyaddto

thetotalachievementshowninthisreport.

LIMITATIONS

1. PilotProjectresultsarebasedondiscussionswithprojectpersonnelonlyandanyprojectdocumentsprovided

totheUniversityofWashingtonReviewTeam.Ingeneral,thisonlyshowshowtheprojectshoulddogiventhe

currentdesignandspecifications. Followupreviewsandadditionaldocumentationarenecessaryfor

certificationandtoreflecttheprojectssustainabilitypractices.

2. Regulatoryrequirementstendtodictatemanyoftheactionsofmostroadwayprojectteamsand

transportationagencies.However,theintentofGreenroadsistoencouragebestpracticesthatgoaboveand

beyondexistingUnitedStatesregulationsandrequirements.Alistofcurrentregulatoryrequirementsis

providedintheIntroductiontotheGreenroadsManual(Muench&Anderson,2010).

3. Greenroadsiscontinuallyunderdevelopment.Thisreviewhasbeencompletedundertheversion1.0.1rating

systemandmaynotscoreequivalentlyunderfutureversionsofGreenroads. Officialcertificationisnot

No. Title Pts. Description

CC1 UrbanHeatIslandEffect 5 Installvegetationtoreduceurbanheatislandeffect

CC2 TransitSafety 2 Improvetransitsafetyattransitcrossingsand/orstopsinthe

roadwaycorridor.

CC3 MaintenanceDistricts 5 Formamaintenancedistricttoensurecontinuedmaintenanceofthe

roadwayfacility


24/28


November 3, 2010 24

currentlyavailableunderversion1.0.1. Tocertifythisproject,itwouldneedtobereviewedunderversion1.5

whichisexpectedtobereleasedsoonandwillhavedifferencesfromversion1.0.1.

4. DifferentGreenroadsreviewersmayinterpretavailableinformationinaslightlydifferentmanner.Bestefforts

havebeenmadetobetransparentaboutlogicbehinddecisionstoawardanddenycreditsinthisreview.

However,notallsubjectivitymayhavebeenremoved.


25/28

APPENDIX A

About the Greenroads Rating System


26/28

ABOUT GREENROADS

ThissectiondetailstheGreenroadsSustainabilityPerformanceMetric,includingabriefbackgroundondevelopmentofthesystem,

theoperatingdefinitionofsustainabilityused,andabriefdescriptionofhowitworksandcanbeimplemented.Moredetailed

information,includingtheVersion1.0.1manualofrequirementsandcreditscanbefoundontheofficialGreenroadswebsite:

http://www.greenroads.us.

ThelistofcreditsincludingabriefdescriptionisincludedattheendofthisappendixinTableA.1.

BACKGROUNDGreenroadsisaresearchproject(Sderlund,2007)thatisjointlydevelopedbytheUniversityofWashington(UW)andCH2MHILL.

Greenroadsisacollectionofsustainabilitybestpracticesthatapplytoroadwaydesignandconstruction,muchliketheLeadershipin

EnergyandEnvironmentalDesign(LEED)RatingSystemforBuildingsthatisadministeredbytheUnitedStatesGreenBuilding

Council(USGBC).Ingeneral,thesesustainabilitybestpracticesaredividedintotwotypes:requiredandvoluntary.Thereiscurrently

onerequiredcategorywith11requiredbestpracticescalledProjectRequirementsorPRs.Atminimum,allofthesebestpractices

mustbecompletedinorderforaroadwaytobeconsideredaGreenroad.

WhatisaGreenroad?

AGreenroadisdefinedasroadwayprojectthathasbeendesignedandconstructedtoalevelofsustainabilitythatissubstantially

higherthancurrentcommonpractice.

WhatisSustainability?

Sustainabilityisthecharacteristicofasystemthatrepresentsitscapacitytosupportnaturallawsandhumanvalues.(Anderson,2008;Muenchet.al,2010)

ProjectsthatregisterusingtheGreenroadswebsiteareeligibletoearnacertificationawardandwillbeabletodisplaythe

Greenroadslogoontheirprojecttorecognizetheirachievement.

STRUCTURE OF THE METRIC

Ingeneral,theGreenroadssustainabilitybestpracticesaredividedintotwotypes:requiredandvoluntary.Thereiscurrentlyone

requiredcategorywith11requiredbestpracticescalledProjectRequirementsorPRs.Atminimum,allofthesebestpracticesmust

becompletedinorderforaroadwaytobeconsideredaGreenroad.Thirtyseven(37)othervoluntarybestpracticesare

characterizedinfiveadditionalcategories,calledvoluntarycreditsorVCs.AfterthePRrequirementshavebeenmet,anumberof

differentVCsmaybeachievedandpointsmaybeearnedtowardoneoffourratings:Certified,Silver,GoldandEvergreen.

Additionally,asixth

VC

category

is

available

to

projects

that

demonstrate

and

implement

innovative

ideas

or

more

sustainable

practicesandwouldliketowriteorsubmittheirowncustomizedornewideasforpoints.

FollowingisabriefdescriptionofthesevencategoriesinGreenroads.TherelativeweightsofthefivemainVCcategoriesareshown

inFigureA.1.

ProjectRequirements

Thiscategorycontainsall11ProjectRequirements(PR)thataGreenroadsprojectmustmeetinordertobeconsideredfora

certificationlevelaward.Thegeneralintentofthiscategoryistoencourageenvironmentallyresponsibledecisionmaking

processesandtohavemanagementplansinplaceforconstruction,andtoestablishaminimumbaselineforeveryprojectthat

appliesforcertification.

Environment

&

Water

(EW)Thiscategorycontainseight(8)voluntarycreditsworthupto21points.Theintentofthiscategoryistopromotebestpractices

relatedtostormwatermanagementandecologicalresourceswithintheprojectboundary.

Access&Equity(AE)

Thiscategorycontainsnine(9)voluntarycreditsworthupto30points.Theintentofthiscategoryistopromotesafety,access,

andmobilitytousersoftheroadway.

ConstructionActivities(CA)

Thiscategorycontainseight(8)voluntarycreditsworthupto14points.Theintentofthiscategoryistopromoteresponsible

constructionmanagement,reduceuseoffossilfuelsandimprovehealthandsafetyofconstructionworkers.


27/28


November 3, 2010 A-5

Materials&Resources(MR)

Thiscategorycontainssix(6)voluntarycreditsworthupto23points.Theintentofthiscategoryistopromoteresponsible

materialsandenergymanagementbycombinationsofrecycling,reusingandreducingbothvirginandwastematerials.

PavementTechnologies(PT)

Thiscategorycontainssix(6)voluntarycreditsworthupto20points.Theintentofthiscategoryistohighlightspecificpavement

engineeringinnovationsandideasorbroadtypesoftechnologiesortechniqueswhicharewellestablishedinpracticeandhave

directsustainability

benefits.

CustomCredits(CC)

Thiscategorycontainsupto10creditswhichmaybeearnedbyaprojectthatimplementssustainableorinnovativeideas.The

projectteammaysubmitapplicationswithadetaileddescriptionandexplanationofthepracticetoearncreditsinthiscategory

ranginginvaluefrom1to5points.Pointsawardedforthecustomcreditaredeterminedthroughreviewandcollaborationwith

Greenroadsrepresentatives.Thereiscurrentlynolimitestablishedforhowmanycustomcreditsaprojectmaysubmitfor

review.

FigureA.1.RelativeWeightsofGreenroadsVCCategories(Muenchetal.2010)

TableA.1Greenroadsv1.0.1ListofCredits


Project

Requirements

(PR)

Mandatory

for

all

projects

PR1 EnvironmentalReviewProcess Req Completeacomprehensiveenvironmentalreview

PR2 LifecycleCostAnalysis(LCCA) Req PerformLCCAforpavementsection

PR3 LifecycleInventory(LCI) Req PerformLCIofpavementsection

PR4 QualityControlPlan Req Have aformalcontractorqualitycontrolplan

PR5 NoiseMitigationPlan Req Haveaconstructionnoisemitigationplan

PR6 WasteManagementPlan Req HaveaplantodivertC&Dwastefromlandfill

PR7 PollutionPreventionPlan Req HaveaTESC/SWPPP

PR8 LowImpactDevelopment(LID) Req CompleteaLIDfeasibilitystudy

PR9 PavementManagementSystem Req Haveapavementmanagementsystem

PR10 SiteMaintenancePlan Req Havearoadsidemaintenanceplan


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TableA.1Greenroadsv1.0.1ListofCredits


PR11 EducationalOutreach Req Publicizesustainabilityinformationforproject

Environment&Water(EW)Upto21Points

EW1 EnvironmentalManagementSystem 2 ISO14001certificationforgeneralcontractor

EW2 RunffFlowControl 13 Reducerunoffquantity

EW3 RunoffQuality 13 Treatstormwatertoahigherlevelofquality

EW4 StormwaterCostAnalysis 1 ConductanLCCAforstormwaterelements

EW5

SiteVegetation

13 Use

native

low/no

water

vegetation

EW6 HabitatRestoration 3 Restorehabitatbeyondwhatisrequired

EW7 EcologicalConnectivity 1or3 Connecthabitatacrossroadways

EW8 LightPollution 3 Discouragelightpollution

Access&Equity(AE)Upto30Points

AE1 SafetyAudit 12 Performroadwaysafetyaudit

AE2 IntelligentTransportationSystems(ITS) 25 ImplementITSsolutions

AE3 ContextSensitiveSolutions 5 Planforcontextsensitivesolutions

AE4 TrafficEmissionsReduction 5 Reduceemissionswithquantifiablemethods

AE5 PedestrianAccess 2 Provide/improvepedestrianaccessibility

AE6 BicycleAccess 2 Provide/improvebicycleaccessibility

AE7 TransitAccess 15 Provide/improvetransitaccessibility

AE8 ScenicViews 2 Provideviewsofsceneryorvistas

AE9 CulturalOutreach 12 Promoteart/culture/communityvalues

Construction

Activities

(CA)

Up

to

14

Points

CA1 QualityManagementSystem 2 ISO9001certificationforgeneralcontractor

CA2 EnvironmentalTraining 1 Provideenvironmentaltraining

CA3 SiteRecyclingPlan 1 Haveaplantodivertwastefromlandfill

CA4 FossilFuelReduction 12 Usealternativefuelsinconstructionequipment

CA5 EquipmentEmissionsReduction 12 MeetEPATier4standardsfornonroadequip.

CA6 PavingEmissionsReduction 1 UsepaversthatmeetNIOSHrequirements

CA7 WaterTracking 2 Developdataonwateruseinconstruction

CA8 ContractorWarranty 3 Warrantyontheconstructedpavement

Materials&Resources(MR)Upto23Points

MR1 LifeCycleAssessment(LCA) 2 ConductadetailedLCAoftheentireproject

MR2 PavementReuse 45 Reuseexistingpavementsections

MR3 EarthworkBalance 1 Usenativesoilratherthanimportfill

MR4 RecycledMaterials 5 Userecycledmaterialsfornewpavement

MR5 RegionalMaterials 5 Useregionalmaterialstoreducetransportation

MR6

EnergyEfficiency

5 Improve

energy

efficiency

of

operational

systems

PavementTechnologies(PT)Upto20Points

PT1 LongLifePavement 5 Designpavementsforlonglife

PT2 PermeablePavement 3 UsepermeablepavementasaLIDtechnique

PT3 WarmMixAsphalt(WMA) 3 Use WMAinplaceofHMA

PT4 CoolPavement 5 Contributelesstourbanheatislandeffect(UHI)

PT5 QuietPavement 3 Useaquietpavementtoreducenoise

PT6 PavementPerformanceTracking 1 Relateconstructiontoperformancedata

CustomCredits(CC)Availableforallprojectsbasedoncontextandinnovation,subjecttoapproval

CC1 CustomCredit1 15 Designanewvoluntarycredit

CC2 CustomCredit2 15 Designanewvoluntarycredit

GreenroadsTotalPoints: 118