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Deficient and Obsolete Bridges (Archives, 1992-2015)


Summary: Number of structurally deficient or obsolete bridges on public roads, including Interstate Highways, U.S. highways, State and county roads, andpublicly-accessible bridges on Federal lands

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This database provides information on the number of structurally deficient or obsolete bridges on public roads, including Interstate Highways, U.S. highways, State and county roads, andpublicly-accessible bridges on Federal lands. (NHS refers to bridges in the National Highway System.)  It contains a state-by-state summary of the number, location, and general condition of highway bridges.  See detailed background for more information

 

Categories include:

  • Number of bridges
  • Number of structurally deficient bridges
  • Number of functionally obsolete bridges
  • Number of deficiency (Total number of structurally deficient and functionally obsolete bridges)
  • Total area (Total bridge area)
  • Structurally deficient area (Structurally deficient weighted by deck area)
  • Functionally obsolete area (Functionally obsolete weighted by deck area)
  • Deficient area (Structurally plus functionally obsolete weighted by deck area).

Geographic Coverage: U.S., States

Periodicity: Annually

Series Begins/Ends: 1992 - 2016

Data Source: US Department of Transportation, National Bridge Inventory

Updated:  Aug. 08, 2017 Next update: None

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 All Bridges  NHS bridges

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 Deficient area  Functionally obsolete area  Number of bridges
 Number of deficiency  Number of functionally obsolete bridges  Number of structurally deficient bridges
 Structurally deficient area  Total area

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