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2 Literature Review
Pages 10-24

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From page 10...
... Alongside these performance goals, MAP-21 required state DOTs to develop and implement a risk- and performance-based asset management plan (MAP-21 §1106; 23 U.S.C.
From page 11...
... Qualifying state DOTs can use PROTECT funds to install, upsize, replace, or rehabilitate culverts affected by extreme weather events. Additional amendments to the BIL included consideration of extreme weather and resilience in life-cycle cost and risk management analyses within state DOT transportation asset management plans [23 U.S.C.
From page 12...
... HEC-17 presents strategies to reduce vulnerability to flooding and extreme weather events and provides a framework for performing risk and vulnerability assessments of riverine culverts. State DOTs concerned with flooding and severe storms can use this framework to esti mate the impact of extreme events on their culverts and incorporate weather uncertainty into the design of their drainage assets accordingly.
From page 13...
... These resources provide detailed guidance strategies state DOTs can implement to improve culvert resiliency. 2.4 Select State DOT Approaches to Resilience Although the final scope of this synthesis includes seismic susceptibility, slope and embankment stability, watershed characteristics, and urban development and land uses as potential challenges of culvert resiliency, the interviewed case example state DOTs prioritize variability in climate and extreme weather events as the focus of their resiliency efforts.
From page 14...
... This resource provides thorough background explanation of various repair and rehabilitation techniques for all culvert materials. The table of alternative repair techniques compares rehabilitation techniques based on cost, applicable culvert materials and size range, and advantages and limitations of each problem resolution.
From page 15...
... Chapter 8: Optional Pipe Material discusses culvert service life, which is specified as 100 years in most applications. The chapter presents information on expected service life for all culvert materials.
From page 16...
... Figure 4.   Screenshot from FDOT's EST.
From page 17...
... The Drainage Manual states that the end of service life is indicated when the culvert requires major rehabilitative maintenance or replacement. The manual details design criteria and appropriate site conditions for all culvert materials and provides guidance on additional measures to mitigate common material-related issues.
From page 18...
... Figure 6.   Map from MDOT's Project Research Tool highlighting drainage structures.
From page 19...
... Figure 7.   Map from MDOT's Project Research Tool highlighting drainage systems.
From page 20...
... Additional resources on culvert design to maximize service life are included on the Ohio DOT website, including guidance on structural analysis of deteriorated culverts to determine the level of invert paving required to reinstate service life, and design guidelines outlining common problems with culvert materials and their associated remediation techniques. The Location and Design Manual also provides supplemental specifi­ cations on culvert rehabilitation regarding spray-applied liners to add structural support (ODOT 2015)
From page 21...
... Additional work by ODOT includes the Infrastructure Resiliency Plan (RSG and McVoy Associates LLC 2016) , which evaluated ODOT culverts on their vulnerability to extreme weather events.
From page 22...
... , which details culvert inspection practices, frequency of inspection, and maintenance recommendations based on inspection results. Examples of the TIMS layer options are shown in Figures 10 and 11.
From page 23...
... Figure 10.   ODOT's TIMS web viewer showing recently inspected assets (ODOT 2020)
From page 24...
... Figure 11.   ODOT's TIMS web viewer showing culverts and storm sewers up to a 10 ft span (ODOT 2020)


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