DLS-108: 2.2 Hydraulic Modeling
Channel: USACE Risk Management Center
Date: 2022-09-14

Course Overview
Explore how the U.S. Army Corps of Engineers (USACE) Risk Management Center (RMC) estimates consequences of flooding, with a focus on potential loss of life. Participants will gain a thorough understanding of what causes loss of life during a flood event, how to estimate the potential loss of life, and how to build the case to support those estimates. Tools currently used within USACE for estimating loss of life from flooding will be introduced, but tool-specific training is not included through this course.

Learning Objectives
By the end of the training, participants will have the expertise needed to estimate the potential loss of life for a given flood scenario and build the case to support those estimates. In addition, participants will be able to:
• Identify the driving factors that lead to loss of life, or lack thereof, for a series of historic flood events
• Define the role of consequences in assessing risk
• Distinguish the essential elements that must be described when estimating potential loss of life from flooding
• Identify common methods for assessing each of the essential elements that inform a life loss estimate
• Identify the sources of uncertainty in life loss estimates and summarize how uncertainty is portrayed in the estimate
• Examine common tools for estimating loss of life from flooding, including an overview of HEC-LifeSim
• Build the case for a life loss estimate
• Summarize how to estimate direct and indirect economic damage

Module Objectives
Describe important aspects of hydraulic modeling as it pertains to consequence estimates, including depth, velocity, and arrival time
Discuss the importance of breach parameters
Discuss other hydraulic modeling inputs and how they impact consequence assessments

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