The document discusses using GIS for a bridge inventory project for the City of New Haven, CT. Key project elements included collecting location and condition data for bridges during site visits, developing a database and summary reports, prioritizing bridges, and delivering the results in a digital map format to help the city manage its bridge infrastructure. The GIS approach integrated data on bridge locations, conditions and priorities to provide a comprehensive inventory and assessment tool.

1. Mehmet Secilmis, GISP, EIT
Environmental Engineer/GIS Specialist
Parsippany, NJ
Using GIS forUsing GIS for
Civil/EnvironmentalCivil/Environmental
ProjectsProjects

2. Using GIS forUsing GIS for
Civil/Environmental ProjectsCivil/Environmental Projects
GIS Overview
Selected Projects
 TransportationTransportation
 Water Resources, Land DevelopmentWater Resources, Land Development
 Municipal ApplicationsMunicipal Applications
 Bridge InventoryBridge Inventory

5. Aerial Imagery
Elevation
Geodetic Control
Boundaries
Surface Waters
Transportation
Land Ownership
Other Thematic DataFramework Data
Relationships Among DataRelationships Among Data
Build Once, Use Many TimesBuild Once, Use Many Times
Soils
Sewer Lines
Water Lines
Landcover
Demographics
Flood Zones

6. Online GISOnline GIS

7. Why Use GIS?Why Use GIS?
 Build compelling maps that help visually portrayBuild compelling maps that help visually portray
patterns, trends, and exceptions in your datapatterns, trends, and exceptions in your data
 Integrate data from multiple sources includingIntegrate data from multiple sources including
CAD drawings, aerial photographs,CAD drawings, aerial photographs,
demographics, Web services, and databasesdemographics, Web services, and databases
 Create and edit geographic and associatedCreate and edit geographic and associated
attribute dataattribute data

8. Who Uses GIS?Who Uses GIS?
 City and county governments manage local zoning, land use, and property taxCity and county governments manage local zoning, land use, and property tax
assessments such as impact of a new development,, high traffic areas, land parcelassessments such as impact of a new development,, high traffic areas, land parcel
info etcinfo etc
 Law enforcement teams track and analyze crime incidentsLaw enforcement teams track and analyze crime incidents
 Real estate professionals locate new commercial development sites, store locationsReal estate professionals locate new commercial development sites, store locations
 Fire and rescue services officials map fire spread, property damage, and resourceFire and rescue services officials map fire spread, property damage, and resource
allocationallocation
 Utility companies map services and customersUtility companies map services and customers
 Bankers map mortgage loansBankers map mortgage loans
 Marketing professionals analyze demographic data to target advertising expendituresMarketing professionals analyze demographic data to target advertising expenditures
and locate existing and target customersand locate existing and target customers
 Environmental agencies and consultants visualize pollution in 2D or 3DEnvironmental agencies and consultants visualize pollution in 2D or 3D
 Military commanders analyze tactical plansMilitary commanders analyze tactical plans

9. GIS Data Available from NJDEPGIS Data Available from NJDEP
Head of Tide (hot)Head of Tide (hot)
Natural Heritage Priority SitesNatural Heritage Priority Sites
Drought RegionsDrought Regions
Open Space - State OwnedOpen Space - State Owned
Open Space - Federal OwnedOpen Space - Federal Owned
Shoreline Type and StructuresShoreline Type and Structures
South Jersey MarshSouth Jersey Marsh
TidelandsTidelands
Water Quality Stations (Existing)Water Quality Stations (Existing)
Shellfish Classification 2002Shellfish Classification 2002
Public Community Water Supply WellsPublic Community Water Supply Wells
Principal and Sole Source AquifersPrincipal and Sole Source Aquifers
Highlands Preservation and PlanningHighlands Preservation and Planning
AreaArea
Highlands Preservation Sewer ServiceHighlands Preservation Sewer Service
AreaArea
Elevation ContoursElevation Contours
StreamsStreams
LakesLakes
Freshwater WetlandsFreshwater Wetlands
National Wetlands Inventory (NWI)National Wetlands Inventory (NWI)
Watersheds and SubwatershedWatersheds and Subwatershed
Beach Hazard (Coastal Flooding)Beach Hazard (Coastal Flooding)
Landscape Project (Beach/Dune,Landscape Project (Beach/Dune,
Emergent Wetland, Forest,Emergent Wetland, Forest,
Grassland, Wetland Forest)Grassland, Wetland Forest)
Ambient Stream Quality MonitoringAmbient Stream Quality Monitoring
SitesSites
AMNET Biological Monitoring SitesAMNET Biological Monitoring Sites
Fish Index of Biotic Integrity SamplingFish Index of Biotic Integrity Sampling
PointsPoints
Surface Water Quality StandardsSurface Water Quality Standards
Total Maximum Daily Loads (TMDLs)Total Maximum Daily Loads (TMDLs)
Soils (SSURGO)Soils (SSURGO)
GeologyGeology
Natural Resources

10. GIS Data Available from NJDEP (Cont.)GIS Data Available from NJDEP (Cont.)
Planning
ParcelsParcels
ZoningZoning
Aerial Photos 1930 - 1997 – 2002 - 2007Aerial Photos 1930 - 1997 – 2002 - 2007
Land Use1986, 1995, 2002, 2007Land Use1986, 1995, 2002, 2007
State Planning AreasState Planning Areas
Water Supply Planning AreasWater Supply Planning Areas
Counties and Municipalities of NJCounties and Municipalities of NJ
Cross Acceptance LayersCross Acceptance Layers
Municipal Tier AssignmentsMunicipal Tier Assignments
(Stormwater Regulation)(Stormwater Regulation)
Historical properties and shorelinesHistorical properties and shorelines
Census DataCensus Data
Zip Code AreasZip Code Areas
USGS QuadranglesUSGS Quadrangles
Golf Courses (Statewide)Golf Courses (Statewide)
PinelandsPinelands
CAFRA BoundaryCAFRA Boundary
BIG Map (Blueprint for Intelligent Growth)BIG Map (Blueprint for Intelligent Growth)
Hazardous Waste
Known Contaminated SitesKnown Contaminated Sites
Classification Exception Areas (CEA)Classification Exception Areas (CEA)
Groundwater Contamination Areas (CKE)Groundwater Contamination Areas (CKE)
NJPDES Ground Water DischargesNJPDES Ground Water Discharges
NJPDES Surface Water DischargesNJPDES Surface Water Discharges
Deed NoticesDeed Notices
BrownfieldsBrownfields
UST Contamination SitesUST Contamination Sites
Historic Fill AreasHistoric Fill Areas

11. Municipal Stormwater Management Plan

12. GIS Use for Transportation ProjectsGIS Use for Transportation Projects

13.  Assess environmental impactsAssess environmental impacts
- residential and commercial- residential and commercial
- community facility and recreational- community facility and recreational
- hazardous waste sites- hazardous waste sites
- floodplain- floodplain
- wetlands- wetlands
- historic architectural / archaeological resource s- historic architectural / archaeological resource s
- community cohesion- community cohesion
 Identify current land use and zoningIdentify current land use and zoning
 Identify land use historyIdentify land use history
 Identify potential wetland mitigation sitesIdentify potential wetland mitigation sites
GIS Use for Transportation ProjectsGIS Use for Transportation Projects

14.  Digital elevation model and drainage calculationsDigital elevation model and drainage calculations
 Map contaminant migrationMap contaminant migration
 Map public outreach activitiesMap public outreach activities
 Prioritize sites based on environmental constraintsPrioritize sites based on environmental constraints
 Perform alternative analysisPerform alternative analysis
 Coordinate and manipulate data from various sources suchCoordinate and manipulate data from various sources such
as Microstation, AutoCAD drawings and various imagesas Microstation, AutoCAD drawings and various images
 Prepare maps to highlight distinguishing criteriaPrepare maps to highlight distinguishing criteria
(Ecological, Socioeconomic and Noise) for each alternative(Ecological, Socioeconomic and Noise) for each alternative
GIS Use for Transportation ProjectsGIS Use for Transportation Projects

15. Community Facility and Recreational Impacts

16. Hazardous Waste Sites

17. Floodplain Impacts

18. Wetlands Impacts

19. Archaeological Resource Impacts

20. Alternative D Distinguishing Criteria

21. Land Use and Zoning

22. Potential Wetland Mitigation Sites

23. Water Resources, Land DevelopmentWater Resources, Land Development
and Municipal Projectsand Municipal Projects

24.  GIS was used to determine watershed parameters forGIS was used to determine watershed parameters for
use in the HEC-HMS hydrologic model which was useduse in the HEC-HMS hydrologic model which was used
to determine runoff values for the watershed.to determine runoff values for the watershed.
 GIS was used to help compute the curve numbers forGIS was used to help compute the curve numbers for
the watershed using digital soil maps to define thethe watershed using digital soil maps to define the
different soil types and land-use data to define thedifferent soil types and land-use data to define the
prevailing land-use types. It was also used to help defineprevailing land-use types. It was also used to help define
the drainage areas.the drainage areas.
 Without GIS, available paper soil and land use (zoning)Without GIS, available paper soil and land use (zoning)
maps would have been computed by hand. Using GISmaps would have been computed by hand. Using GIS
increased the accuracy and saved time (~%50).increased the accuracy and saved time (~%50).
Stormwater Runoff AnalysisStormwater Runoff Analysis

25. GIS Task Steps:
 Identify and group the soil types within the drainage areaIdentify and group the soil types within the drainage area
based on the hydrologic class (A, B, C, C/D and D)based on the hydrologic class (A, B, C, C/D and D)
 Identify and group the land use types within the drainageIdentify and group the land use types within the drainage
areaarea
 Calculate the area (acres) of land use types with sameCalculate the area (acres) of land use types with same
hydrologic class soilshydrologic class soils
 Use the data to get C (roughness coefficient) and AUse the data to get C (roughness coefficient) and A
(Surface Area) for Rationale formula (Q=C.i.A)(Surface Area) for Rationale formula (Q=C.i.A)
Stormwater Runoff AnalysisStormwater Runoff Analysis

26. Stormwater Runoff Analysis

27. Stormwater Runoff Analysis

28. Municipal Build Out Analysis

29. Municipal Build Out Analysis

30. Municipal Build Out Analysis

31. Highway Widening Digital Elevation Model and Drainage Calculations

32. Water Supply Pipeline Route Options

33. • Cultural ResourcesCultural Resources
• Land ResourcesLand Resources
• Water ResourcesWater Resources
• Living ResourcesLiving Resources
• Air ResourcesAir Resources
• Natural ResourceNatural Resource
UseUse
• Conclusions andConclusions and
RecommendationsRecommendations
Englewood Environmental/Natural
Resources Inventory

34. MTA Metro North Drainage Structure Inventory Using GIS

35. NYCDDC Pedestrian Ramps InventoryNYCDDC Pedestrian Ramps Inventory
GIS Database ProposalGIS Database Proposal
We understand that NYC DDC is in need of a pedestrian
ramps database with the following information:
Indication If Ramp Is Needed Or Existing
Nearest Corner
Street Names
Existing Pedestrian Ramp Type
Location Interference (Pole, Sign, Bus Shelter, Traffic
Light, Etc)
Curb And Sidewalk Type And Condition
Photo Link
Comments As Needed To Reveal Special Circumstances

36. Collecting Field Data for ExistingCollecting Field Data for Existing
RampsRamps
ocation (Street names and direction)ocation (Street names and direction)
ypeype
urface Conditionurface Condition
aterialaterial
op Landing Width and Slopeop Landing Width and Slope
umber of Slopes at Cornerumber of Slopes at Corner
amp width and Slopeamp width and Slope
amp Cross Slopeamp Cross Slope
lip-resistant Surfacelip-resistant Surface
idewalk Approachidewalk ApproachNYCDDC Pedestrian Ramps Inventory GIS Database ProposalNYCDDC Pedestrian Ramps Inventory GIS Database Proposal

37. NYCDDC Pedestrian Ramps Inventory GIS Database ProposalNYCDDC Pedestrian Ramps Inventory GIS Database Proposal

38. NYCDDC Pedestrian Ramps Inventory GIS Database ProposalNYCDDC Pedestrian Ramps Inventory GIS Database Proposal

39. New Haven Bridge Inventory Using GIS

40. Mehmet Secilmis, GISP
Environmental Engineer/GIS Specialist
Dewberry
Parsippany, NJ
Bridge InventoryBridge Inventory
Using GISUsing GIS
City of New Haven, CTCity of New Haven, CT

41. IntroductionIntroduction
ity of New Haven needed engineering services fority of New Haven needed engineering services for
an inventory and assessment of bridges locatedan inventory and assessment of bridges located
within the city limits to develop a program to aidwithin the city limits to develop a program to aid
the City in managing its bridge infrastructurethe City in managing its bridge infrastructure
resources.resources.
he City was open to using new technology, yethe City was open to using new technology, yet
not 100 percent sure of what the results wouldnot 100 percent sure of what the results would
offer.offer.

42. Data CollectionData Collection
he project included an inventory and assessmenthe project included an inventory and assessment
of all bridges in New Haven which the city eitherof all bridges in New Haven which the city either
owned or was responsible for maintenance, andowned or was responsible for maintenance, and
the development of a program to aid the City inthe development of a program to aid the City in
managing its infrastructure resources.managing its infrastructure resources.
his required coordination with the Connecticuthis required coordination with the Connecticut
Department of Transportation and Railroads toDepartment of Transportation and Railroads to
determine ownership details. Historical inspectiondetermine ownership details. Historical inspection
reports were reviewed prior to scheduling sitereports were reviewed prior to scheduling site
visits.visits.

43. Site VisitsSite Visits
he intent of the site visit was to perform a visualhe intent of the site visit was to perform a visual
inspection of the various bridge elements toinspection of the various bridge elements to
assess the condition.assess the condition.
ite visits included photo documentation and visualite visits included photo documentation and visual
condition inspection.condition inspection.
ridge location coordinates were collected withridge location coordinates were collected with
GPS units and confirmed with aerial photos.GPS units and confirmed with aerial photos.

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

45. Two-Page Bridge Summary ReportTwo-Page Bridge Summary Report
rief description of the bridgerief description of the bridge
ey map locationey map location
gege
hotographhotograph
eneral condition assessment/evaluationeneral condition assessment/evaluation
ecommendations for maintenance/repairs/replacementecommendations for maintenance/repairs/replacement

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

47. Quarterly Bridge ReportQuarterly Bridge Report

48. Bridge Inventory DatabaseBridge Inventory Database
Site No.
Bridge ID (BIN)
Route Carrying
Route Crossing
Moveable Bridge
Over Waterway
Over Railroad
Over Roadway
Over 20 Feet
Owned by
Maintenance Agency
Inspection Agency
Bridge Type
Org. Const. Date (year)
Major. Rehab. Date (year)
Prev. Insp. Date
Prev. Inspected by
Condition of Bridge -Description
Condition of Bridge - Rating (1-9)
X
Y
Elevation (ft)
Photos Link (or ID)
Summary Report Link
Follow-Up Flags

49. Prioritization of Bridge ConditionsPrioritization of Bridge Conditions

50. Bridge Locations on Aerial PhotoBridge Locations on Aerial Photo

51. Incorporating with Survey DataIncorporating with Survey Data

52. City of New Haven Inventory and Assessment “in action” showing how the program
lines the various pieces of information required to provide the City of New Haven a
thorough bridge evaluation.

53. ConclusionsConclusions
 GIS (Geographic Information System) was used toGIS (Geographic Information System) was used to
store, manipulate and analyze the data collected forstore, manipulate and analyze the data collected for
the inventory and assessment.the inventory and assessment.
 ArcGIS was utilized to assess and analyze the fieldArcGIS was utilized to assess and analyze the field
data collected at each bridge. GIS integrated anddata collected at each bridge. GIS integrated and
inter-related geographic data (including locations,inter-related geographic data (including locations,
land use, municipal boundaries, natural resourceland use, municipal boundaries, natural resource
data and aerial photos) with database information.data and aerial photos) with database information.
 Users view and analyze the inter-related data in aUsers view and analyze the inter-related data in a
way that would be impossible by studying stand-way that would be impossible by studying stand-
alone maps and spreadsheets.alone maps and spreadsheets.
 Statistical data was collected, evaluated, andStatistical data was collected, evaluated, and
presented which illustrated how the City of Newpresented which illustrated how the City of New
Haven’s bridge infrastructure matched up to otherHaven’s bridge infrastructure matched up to other
peer cities in the state.peer cities in the state.

54. elivering the report and recommendations in aelivering the report and recommendations in a
GIS “digital map” format enabled the City to clickGIS “digital map” format enabled the City to click
through to digital photography and access thethrough to digital photography and access the
key data for each bridge.key data for each bridge.
uarterly reports are filled out by the Engineeringuarterly reports are filled out by the Engineering
Department for each of the red flagged bridges inDepartment for each of the red flagged bridges in
the initial evaluation. This innovative processthe initial evaluation. This innovative process
keeps the Mayor’s office up-to-date on the statekeeps the Mayor’s office up-to-date on the state
of these bridges, and makes the inventory aof these bridges, and makes the inventory a
“living document”.“living document”.
ConclusionsConclusions

55. pen communication combined with the City’spen communication combined with the City’s
willingness to be forward thinking resulted in thewillingness to be forward thinking resulted in the
use of technology to generate a ‘live’ finaluse of technology to generate a ‘live’ final
document that will not only assist them indocument that will not only assist them in
maintaining their bridge program but will alsomaintaining their bridge program but will also
allow a tie-in to future transportation projects.allow a tie-in to future transportation projects.
s noted by City Engineer, Richard Miller, PE, “…its noted by City Engineer, Richard Miller, PE, “…it
is viewed as a useful tool for the City to ensureis viewed as a useful tool for the City to ensure
these critical bridges are managed in a forwardthese critical bridges are managed in a forward
thinking and planned effort to ensure safe andthinking and planned effort to ensure safe and
reliable transportation linkage over time.”
ConclusionsConclusions