Bridge InventoryBridge InventoryU i GISU i GISUsing GISUsing GIS

City of New Haven CT City of New Haven CT City of New Haven, CT City of New Haven, CT

Mehmet Secilmis, GISPEnvironmental Engineer/GIS Specialist

DewberryParsippany, NJ

msecilmis@dewberry.com(973) 576 9640(973) 576-9640

IntroductionIntroduction

CityCity ofof NewNew HavenHaven neededneeded engineeringengineering servicesservicesyy g gg gforfor anan inventoryinventory andand assessmentassessment ofof bridgesbridgeslocatedlocated withinwithin thethe citycity limitslimits toto developdevelop aaprogramprogram toto aidaid thethe CityCity inin managingmanaging itsits bridgebridgeprogramprogram toto aidaid thethe CityCity inin managingmanaging itsits bridgebridgeinfrastructureinfrastructure resourcesresources..

TheThe CityCity waswas openopen toto usingusing newnew technology,technology, yetyetnotnot 100100 percentpercent suresure ofof whatwhat thethe resultsresults wouldwouldofferofferofferoffer..

Data CollectionData Collection TheThe projectproject includedincluded anan inventoryinventory andand

assessmentassessment ofof allall bridgesbridges inin NewNew HavenHaven whichwhich thethecitycity eithereither ownedowned oror waswas responsibleresponsible forformaintenance,maintenance, andand thethe developmentdevelopment ofof aa programprogramtoto aidaid thethe CityCity inin managingmanaging itsits infrastructureinfrastructuretoto aidaid thethe CityCity inin managingmanaging itsits infrastructureinfrastructureresourcesresources..

ThisThis requiredrequired coordinationcoordination withwith thethe ConnecticutConnecticutDepartmentDepartment ofof TransportationTransportation andand RailroadsRailroads totodeterminedetermine ownershipownership detailsdetails.. HistoricalHistorical inspectioninspectiondeterminedetermine ownershipownership detailsdetails.. HistoricalHistorical inspectioninspectionreportsreports werewere reviewedreviewed priorprior toto schedulingscheduling sitesitevisitsvisits..

Site VisitsSite Visits TheThe intentintent ofof thethe sitesite visitvisit waswas toto performperform aa visualvisual

inspectioninspection ofof thethe variousvarious bridgebridge elementselements totoassessassess thethe conditioncondition..

SiteSite visitsvisits includedincluded photophoto documentationdocumentation andand SiteSite visitsvisits includedincluded photophoto documentationdocumentation andandvisualvisual conditioncondition inspectioninspection..

BridgeBridge locationlocation coordinatescoordinates werewere collectedcollected withwithGPSGPS unitsunits andand confirmedconfirmed withwith aerialaerial photosphotos..

Typical Site PhotosTypical Site Photos

Typical Site Photos (Cont’d)Typical Site Photos (Cont’d)

TwoTwo--Page Bridge Summary ReportPage Bridge Summary Report

BriefBrief descriptiondescription ofof thethe bridgebridgeKK l til tiKeyKey mapmap locationlocationAgeAgePhotographPhotographPhotographPhotographGeneralGeneral conditioncondition assessment/evaluationassessment/evaluationRecommendationsRecommendations forfor maintenance/repairs/replacementmaintenance/repairs/replacementeco e dat o seco e dat o s oo a te a ce/ epa s/ ep ace e ta te a ce/ epa s/ ep ace e tCostCost estimateestimate forfor replacement/rehabilitationreplacement/rehabilitationPotentialPotential fundingfunding sourcessources andand grantsgrants

Bridge Summary Report (Cont’d) Bridge Summary Report (Cont’d)

Quarterly Bridge ReportQuarterly Bridge Report

Bridge Inventory DatabaseBridge Inventory Database

Site No.B id ID (BIN)

Org. Const. Date (year)Bridge ID (BIN)Route CarryingRoute Crossing

Major. Rehab. Date (year)Prev. Insp. DatePrev. Inspected by

Moveable BridgeOver WaterwayOver Railroad

Prev. Inspected by

Condition of Bridge ‐Description

Condition of Bridge ‐ Rating (1‐9)Over RailroadOver RoadwayOver 20 Feet

Condition of Bridge  Rating (1 9)XYEl ti (ft)Owned by

Maintenance AgencyInspection Agency

Elevation (ft)Photos Link (or ID)Summary Report Linkp g y

Bridge Typey p

Follow‐Up Flags

Prioritization of Bridge ConditionsPrioritization of Bridge Conditions

Bridge Locations on Aerial PhotoBridge Locations on Aerial Photo

Incorporating with Survey DataIncorporating with Survey Data

City of New Haven Inventory and Assessment “in action” showing how the programlines the various pieces of information required to provide the City of New Haven athorough bridge evaluation.

ConclusionsConclusions GISGIS (Geographic(Geographic InformationInformation System)System) waswas usedused toto

store,store, manipulatemanipulate andand analyzeanalyze thethe datadata collectedcollected forforthethe inventoryinventory andand assessmentassessmentthethe inventoryinventory andand assessmentassessment..

ArcGISArcGIS waswas utilizedutilized toto assessassess andand analyzeanalyze thethe fieldfielddatadata collectedcollected atat eacheach bridgebridge.. GISGIS integratedintegrated andand

l dl d hh dd ( l d( l d llinterinter--relatedrelated geographicgeographic datadata (including(including locations,locations,landland use,use, municipalmunicipal boundaries,boundaries, naturalnatural resourceresourcedatadata andand aerialaerial photos)photos) withwith databasedatabase informationinformation..p )p )

UsersUsers viewview andand analyzeanalyze thethe interinter--relatedrelated datadata inin aawayway thatthat wouldwould bebe impossibleimpossible byby studyingstudying standstand--alonealone mapsmaps andand spreadsheetsspreadsheetsalonealone mapsmaps andand spreadsheetsspreadsheets..

StatisticalStatistical datadata waswas collected,collected, evaluated,evaluated, andandpresentedpresented whichwhich illustratedillustrated howhow thethe CityCity ofof NewNewH ’H ’ b idb id i fi f h dh d hhHaven’sHaven’s bridgebridge infrastructureinfrastructure matchedmatched upup toto otherotherpeerpeer citiescities inin thethe statestate..

ConclusionsConclusions

DeliveringDelivering thethe reportreport andand recommendationsrecommendations inin aagg ppGISGIS “digital“digital map”map” formatformat enabledenabled thethe CityCity toto clickclickthroughthrough toto digitaldigital photographyphotography andand accessaccess thethekeykey datadata forfor eacheach bridgebridgekeykey datadata forfor eacheach bridgebridge..

QuarterlyQuarterly reportsreports areare filledfilled outout byby thethe EngineeringEngineeringff hh ff hh dd fl dfl d b db dDepartmentDepartment forfor eacheach ofof thethe redred flaggedflagged bridgesbridges inin

thethe initialinitial evaluationevaluation.. ThisThis innovativeinnovative processprocesskeepskeeps thethe Mayor’sMayor’s officeoffice upup--toto--datedate onon thethe statestatepp yy ppofof thesethese bridges,bridges, andand makesmakes thethe inventoryinventory aa“living“living document”document”..

ConclusionsConclusions

OpenOpen communicationcommunication combinedcombined withwith thethe City’sCity’spp yywillingnesswillingness toto bebe forwardforward thinkingthinking resultedresulted inin thetheuseuse ofof technologytechnology toto generategenerate aa ‘live’‘live’ finalfinaldocumentdocument thatthat willwill notnot onlyonly assistassist themthem inindocumentdocument thatthat willwill notnot onlyonly assistassist themthem ininmaintainingmaintaining theirtheir bridgebridge programprogram butbut willwill alsoalsoallowallow aa tietie--inin toto futurefuture transportationtransportation projectsprojects..

AsAs notednoted byby CityCity Engineer,Engineer, RichardRichard Miller,Miller, PE,PE, ““……ititisis viewedviewed asas aa usefuluseful tooltool forfor thethe CityCity toto ensureensureisis viewedviewed asas aa usefuluseful tooltool forfor thethe CityCity toto ensureensurethesethese criticalcritical bridgesbridges areare managedmanaged inin aa forwardforwardthinkingthinking andand plannedplanned efforteffort toto ensureensure safesafe andandreliablereliable transportationtransportation linkagelinkage overover timetime..””