United States Department of Transportation
i
Best practices for assessing culvert health and determining appropriate rehabilitation methods : a research project in support of operational requirements for the South Carolina Department of Transportation : final report.
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2016-11-01
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[PDF-3.29 MB]
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Abstract:Due to the invisibility of buried culverts from the surface, they often get ignored until a
problem such as road settlement or flooding arises. Many of the existing culverts in the US
are in a deteriorated state having reached the end of their useful design life. Consequently,
there have been several reported cases of culvert failures that caused the collapse of roads
which pose a significant safety risk to motorists. The overarching goal of this research project
is to provide technical guidance to the South Carolina Department of Transportation (SCDOT)
in effectively managing their culvert infrastructure. Four specific objectives identified are: (1)
develop guidance on the latest culvert inspection techniques for use by SCDOT; (2) develop a
deterioration model to predict the future condition of culverts; (3) develop a risk‐based
renewal prioritization model for deteriorating culverts; and (4) develop guidance for selecting
optimal renewal methods given the culvert material, size, and user preferences. The findings
of this study provide preliminary guidance for the management of culvert infrastructure by
maintenance departments at state and district levels. Specifically, the models developed for
deterioration prediction, risk‐based prioritization, and renewal selection would aid in
effective short‐term and long‐term planning of culvert infrastructure maintenance.
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