Heritage at Risk: The Loss of Historic Metal Truss Bridges in Pennsylvania

• pa_historically_significant_truss_bridges

  NRHP and NRHP-eligible truss bridges in Pennsylvania, as identified in the 2001 Pennsylvania Historic Bridge Inventory. Locations and statuses were determined using Google imagery and Street View.

  public 333 rows over 8 years ago
• pa_counties_with_bridge_status

  Detailed Pennsylvania county boundaries from PennDOT

  public 67 rows over 8 years ago
• penndot_engineering_districts

  PennDOT Engineering Districts

  public 11 rows over 8 years ago

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