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To Rehabilitate or to Replace:The Question of Historic Bridges in          Pennsylvania                              Photo...
Topics• Bridges in Pennsylvania•Transportation Needs• Factors regarding Bridge Projects• Data from 2011 on Historic Bridge...
Bridges: What is Historic?residential buildings                        bridges                        farms               ...
Transportation PlanningParticipants•Planning Partners•Municipalities•Public•PennDOT•FHWA•FTA
Typical Transportation PurposeThe purpose of the project is to:provide a sustainable river crossing that re-establishes & ...
Typical Transportation Needs•Provide a link that is capable of carrying current legal loads & eliminatesthe "Structurally ...
Project DevelopmentScopingPurpose & NeedResource IdentificationAlternativesAvoidance/Minimization/Mitigation
Factors Considered•Safety (crash history, sight distance, multi modal)• Condition (structure/approaches)• Owner (state/loc...
Condition                        Henry’s Woods Bridge                        Photo D Suciu SmithEroding Bridge
OwnershipLocal OwnershipMunicipalities Financial Recovery Act 47 of 1987   •20+ listed   •responsibilities   •prioritiesSt...
Factors Considered•Adjacent Land Owners (vacant/farmland/industrial park/residential)• Waterway Characteristics• Average D...
Adjacent Landowners                       Present Day1930s
ADT                        Smithfield Street Bridge                        Allegheny county                        State O...
Waterways
Weight: Truck vs. Car                   Semi weighs about 24,000-                   32,000 lbsCar weighs about4,000 lbs
Factors Considered• Local Pressures•Structure Size• Emergency Service Equipment
Local Pressures
Emergency Service              Weighs about              10,00 lbs
So….What Happens                   Neff Bridge                   Photo: J. Dailey
Photo J. Dailey
2011-2012A YEAR IN BRIDGES
Total Number of Bridge    Projects in 2011126                 non-historic                 historic      334              ...
Repair or Preserved Bridges          in 2011   51                      non-historic                      historic         ...
Total Historic Bridges Removed or         Replaced in 2011                 48                                non-historic ...
Parting Thoughts• Education• Creativity• Flexibility
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To Rehabilitate or to Replace

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Deborah Suciu-Smith, Federal Highway Administration Pennsylvania Division Office, Office of Technical Services - Resource Center (ENV TST)

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To Rehabilitate or to Replace

  1. 1. To Rehabilitate or to Replace:The Question of Historic Bridges in Pennsylvania Photo: D. Anthony
  2. 2. Topics• Bridges in Pennsylvania•Transportation Needs• Factors regarding Bridge Projects• Data from 2011 on Historic Bridges• Concluding Thoughts
  3. 3. Bridges: What is Historic?residential buildings bridges farms railroads roads historic districts industrial buildings archaeological sites canals
  4. 4. Transportation PlanningParticipants•Planning Partners•Municipalities•Public•PennDOT•FHWA•FTA
  5. 5. Typical Transportation PurposeThe purpose of the project is to:provide a sustainable river crossing that re-establishes & improves the link between theKennelworth community (to the south) andFencingtown (to the north) & is consistent with bothexisting & planned development within thosecommunities & their immediate surroundings.
  6. 6. Typical Transportation Needs•Provide a link that is capable of carrying current legal loads & eliminatesthe "Structurally Deficient" designation of the bridge.•Eliminate the "Functionally Obsolete" designation of the link.•Provide a link that safely accommodates vehicular & pedestrian/biketraffic.•Improve safety & operation of adjacent intersections.
  7. 7. Project DevelopmentScopingPurpose & NeedResource IdentificationAlternativesAvoidance/Minimization/Mitigation
  8. 8. Factors Considered•Safety (crash history, sight distance, multi modal)• Condition (structure/approaches)• Owner (state/local with funding limitations)
  9. 9. Condition Henry’s Woods Bridge Photo D Suciu SmithEroding Bridge
  10. 10. OwnershipLocal OwnershipMunicipalities Financial Recovery Act 47 of 1987 •20+ listed •responsibilities •prioritiesState Ownership
  11. 11. Factors Considered•Adjacent Land Owners (vacant/farmland/industrial park/residential)• Waterway Characteristics• Average Daily Traffic (ADT)• Ratio of truck vs. car (weight)
  12. 12. Adjacent Landowners Present Day1930s
  13. 13. ADT Smithfield Street Bridge Allegheny county State OwnedTioga CountyLocal ownedADT 37Detour 5+ miles
  14. 14. Waterways
  15. 15. Weight: Truck vs. Car Semi weighs about 24,000- 32,000 lbsCar weighs about4,000 lbs
  16. 16. Factors Considered• Local Pressures•Structure Size• Emergency Service Equipment
  17. 17. Local Pressures
  18. 18. Emergency Service Weighs about 10,00 lbs
  19. 19. So….What Happens Neff Bridge Photo: J. Dailey
  20. 20. Photo J. Dailey
  21. 21. 2011-2012A YEAR IN BRIDGES
  22. 22. Total Number of Bridge Projects in 2011126 non-historic historic 334 Rehab Bridge Projects in 2011 27 non-historic historic 55
  23. 23. Repair or Preserved Bridges in 2011 51 non-historic historic 172 Replaced or Removed Bridges in 2011 48 non-historic historic 86
  24. 24. Total Historic Bridges Removed or Replaced in 2011 48 non-historic historic78
  25. 25. Parting Thoughts• Education• Creativity• Flexibility

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