QUANTIFYING RISKS FOR COASTAL LEVEE DESIGNS ALONG THE U.S. GULF COAST
ICCE 2022
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How to Cite

QUANTIFYING RISKS FOR COASTAL LEVEE DESIGNS ALONG THE U.S. GULF COAST. (2023). Coastal Engineering Proceedings, 37, management.10. https://doi.org/10.9753/icce.v37.management.10

Abstract

For all U.S. Army Corps of Engineers (USACE) dam and levee designs for new projects, modifications, improvements, rehabilitation, or repairs, a risk-informed design approach is taken (ECB 2019-15). Risk-informed design ensures that risks and uncertainties are evaluated and estimated to be tolerable. This approach occurs in parallel to the typical design approach, which primarily focuses on ensuring the project is commensurate with available policies, guidance, and criteria as specified in USACE publications (regulations, manuals, etc.) as well as project-specific criteria. These criteria result in designs that achieve adequate factors of safety for levees, floodwalls, or other structural features across a full range of hydraulic, seismic, and other types of hazards. The risk-informed design approach allows for adaptability to identify cases where a lesser factor of safety may still result in tolerable risks, or conversely, where proposed criteria may not be sufficient to reduce risks to an acceptable level. These type of assessments are performed while ensuring that the project holds life safety paramount, and the design and risk teams are open and transparent in their engagement with local partners.
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References

ECB, 2019-15, Interim Approach for Risk-Informed Designs for Dam and Levee Projects (08 October 2019). https://www.wbdg.org/ffc/dod/engineering-and-construction-bulletins-ecb/usace-ecb-2019-15

Risk Management Center, 2021. LifeSim, Life Loss Estimation, User’s Manual, Version 2.0, CPD-97, U.S. Army Corps of Engineers, Lakewood, CO. https://www.rmc.usace.army.mil/Software/LifeSim/

Smith, Fields, and Snorteland, 2021. A New Suite of Risk Analysis Software for Dam and Levee Safety. The Journal of Dam Safety, (Summer 2021), pp.36-46.

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Copyright (c) 2023 Alexander Nelson, Brad Arcement, Brad Burrows, Andrew Hill