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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
Database Detail
| Name | 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 |
| Additional Background |
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:
|
| Geographic Coverage | U.S., States |
| Periodicity | Annually |
| Series Begins/Ends | 1992 - 2016 |
| Data Source | US Department of Transportation, National Bridge Inventory |
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
Source (APA):
RAND State Statistics. (2017, August 8). Deficient and Obsolete Bridges (Archives, 1992-2015). https://randstatestats.org/us/stats/deficient-and-obsolete-bridges-(archives,-1992-2015).html
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APA
Format or style, from the American Psychological Association, is commonly used for footnotes in behavioral and social science publications. APA citation is an author-year-system. It is one of the most common styles used and taught at colleges and high schools. See here for more details, including APA formatting for bibliographies.Chicago
Format or style (also known as Turabian), created by the University of Chicago, is commonly used for footnotes in history, business, and fine arts and occasionally in the humanities, sciences, and social sciences. The Chicago style has two systems of citation. The author-date system (most common in social sciences and sciences) cites sources parenthetically in the text. The notes and bibliography system (most common in humanities) cites sources in numbered footnotes or endnotes which correspond to a superscript number in the text. See here for more details, including Chicago formatting for bibliographies.MLA
Modern Language Association (MLA) format or style is most commonly used for footnotes in the language arts, cultural studies, liberal arts, and humanities. MLA uses short parenthetical citations within the text that are linked to an alphabetical list of work cited at the end of the document. MLA commonly cites using this format: author's last name, first name, title, publication, edition or chapter, and year. See here for more details, including MLA formatting for bibliographies.AMA
American Medical Association (AMA) format or style is most commonly used for footnotes in medicine, biomedical research, nursing, dentistry, and other life sciences. AMA uses numerical superscript for citing sources in-text and refers to a list at the end of the work. These references appear in sequential order of when the sources were cited, instead of alphabetical order. See here for more details, including AMA formatting for bibliographies.Derived From: US Department of Transportation, National Bridge Inventory
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