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Compound flooding conditions present a significant challenge for civil engineers in their pursuit to design for and maintain the integrity of a structure’s entire life cycle. Coupled with non-stationary processes due to a changing climate and land use change, risk is a moving target. Through the support of ASCE’s Task Committee on Compound Flooding, the Hydroclimatology Engineering Adaptation (HYDEA) sub-committee is developing a Manual of Practice (MOP) to provide a synthesis of available tools and methods of best practice for civil engineers designing for compound flooding conditions. This paper presents a primer for practicing civil engineers on this work. Hydrodynamic process-based models such as rainfall-runoff, riverine, and coastal modeling, as well as statistical models including multivariate statistical models, will be addressed. In addition, the importance of linking statistical and process-based models and their various approaches is identified. The MOP also discusses addressing nonstationarity due to changing local and regional conditions and tools to assess risk and uncertainty.


This is the author’s accepted manuscript of a chapter originally published in ASCE Inspire 2023 Proceedings, available at

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