Analysis of Bridge Deterioration Rates: A Case Study of the Northern Plains Region

A bridge deterioration model is estimated from the National Bridge Inventory that explains and forecasts future condition as a function of bridge material, bridge design, operating rating classification, average daily traffic, the state where the bridge is located, and the age of the bridge. Over the 95-year analysis period, the rate of bridge deterioration with age is a third-order polynomial function. However, the relationship between condition and age is approximately linear until age 65. Holding all else constant, a bridge substructure in the Northern Plains loses approximately one-half of a condition rating point every 13 years until age 65.


Subject(s):
Issue Date:
2011
Publication Type:
Journal Article
Record Identifier:
http://ageconsearch.umn.edu/record/207299
PURL Identifier:
http://purl.umn.edu/207299
Published in:
Journal of the Transportation Research Forum, Volume 50, Number 2
Page range:
87-100
Total Pages:
15




 Record created 2017-04-01, last modified 2018-01-23

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