DLS-104 Modules E4 & E5: Concrete Arch Dams & Buttress Dams
Channel: USACE Risk Management Center
Date: 2022-09-12

Course Overview
Learn best practices for estimating dam and levee safety risks considering hazards, system response, and consequences. The basis for this course is the Best Practices in Dam and Levee Safety Risk Analysis Manual, developed jointly by U.S. Army Corps of Engineers (USACE) and Bureau of Reclamation (USBR).

Designed with cross-discipline experience in mind, this course summarizes the governance and guidelines relevant to dam and levee safety risk analysis, provides an overview of probability and statistics, and describes methodologies for estimating and portraying risks, and for building the case for risk estimates.

Learning Objectives
By the end of the training, participants will be able to:
• Create potential failure mode descriptions and event trees and use them to develop risk estimates
• Describe the hazards that affect dams and levees and estimate hazard occurrence probability
• Identify relevant case histories and foundational research studies
• Apply principles of theory of probability and statistics to quantify, combine and portray risk estimates
• Identify essential elements of life loss consequence estimates
• Build the case for risk estimates
• Explain governance and guidelines of tolerable risk

Module Objectives
Outline the mechanisms that affect arch dam failure
Construct an event tree to represent arch dam failure
Explain how to estimate event tree branch probabilities and probability of breach
Define the mechanisms that affect buttress dam failure
Construct an event tree to represent buttress dam failure
Describe how to estimate nodal probabilities and probability of breach

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