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Deficient and Obsolete Bridges


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

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).

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Geographic Coverage: U.S., States

Periodicity: Annually

Series Begins/Ends: 1992 - 2015

Data Source: US Department of Transportation, National Bridge Inventory

Updated:  Mar. 15, 2016 Next update: Mar. 01, 2017

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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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