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Proactive and sustainable maintenance and management practices to enhance culvert resilience can mitigate the potential costs associated with extreme weather events. 1.2 Synthesis Objectives The objective of this synthesis is to document current management and maintenance practices used by state DOTs to enhance the resiliency of existing roadway and embankment culverts with a span (inside diameter or width)
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The literature review is organized as follows: • Federal legislation and regulation on infrastructure asset resilience • Trade association information on culvert resilience • Relevant NCHRP reports • Selected state DOT approaches to resilience. 1.3.2 Survey of State DOTs A questionnaire was developed to survey state DOTs about their current maintenance and man agement practices for enhancing the resiliency of roadway and embankment culverts.
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These findings include maintenance and management practices currently employed by state DOTs for enhancing culvert resilience; potential future research is also discussed. 1.4 Terminology This terminology section includes terms and definitions that are pertinent to the synthesis.
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. Bulking Factor Design metric used to account for increased watershed volumes due to increased sediment levels (WEST Consultants, Inc.
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This chapter provides background information relevant to the topic, the objectives of the synthesis, the synthesis scope and approach, and the terminology used in the report. Chapter 2 synthesizes relevant information from the literature review.
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