Risk Management for Dam Safety: Difference between revisions

Latest revision as of 23:10, 16 August 2023

“The term ‘risk,’ when used in the context of dam safety, is comprised of three parts: (1) the likelihood of occurrence of a load (e.g., flood earthquake, etc.), (2) the likelihood of an adverse structural response (e.g., dam failure, damaging spillway discharge, etc.), and (3) the magnitude of the consequences resulting from that adverse event (e.g., life loss, economic damages, environmental damages, etc.).” ^[1]

According to the United States Army Corps of Engineers (USACE), risk is defined as “the measure of the probability and severity of undesirable consequences”.^[2] Risk is further defined by the USACE as the product of the frequency of an event, the probability of occurrence of that event, and the consequences of that event. In recent years, risk has become a major factor in identifying where resources should be expended to achieve the highest increase in public safety. The process of using risk in this manner is known as Risk-Informed Decision Making (RIDM) and includes an entire process of identifying and analyzing potential failure modes to reduce the overall risk of a dam failure.

Risk Processes for Dam Safety

Examples

Learn the basics of risk-informed decision-making for dams at DamFailures.org

Best Practices Resources

Best Practices in Dam and Levee Safety Risk Analysis, USACE/USBR

Risk-Informed Decision Making (RIDM) Interim Policy Guidance, FERC

Federal Guidelines for Dam Safety Risk Management, FEMA

Dam and Levee Safety: Using Risk-Informed Decision Making, USACE

Trainings

On-Demand Webinar: The History of Dam Safety Governance in the US Including Risk Analysis

On-Demand Webinar: What Can I Really Expect to Get Out of a Semi-Quantitative Risk Analyses (SQRA)?

On-Demand Webinar: How to Conduct a Successful PFMA - Lessons Learned from Past Successes and Failures

On-Demand Webinar: Risk Communication for Dams

On-Demand Webinar: Tolerable Risk Guidelines for Dams: How Safe is Safe Enough

On-Demand Webinar: Risk Assessment Basics for an Individual Dam

On-Demand Webinar: Risk Management for a Portfolio of Dams

Fundamental Dam and Levee Safety Training, USACE

Citations:

↑ Federal Guidelines for Dam Safety Risk Management (FEMA P-1025), FEMA, 2015
↑ FAQ Definitions, USACE, 2022

Revision ID: 7635
Revision Date: 08/16/2023

[FEMA1025-1] Federal Guidelines for Dam Safety Risk Management (FEMA P-1025), FEMA, 2015

[USACE_Def-2] FAQ Definitions, USACE, 2022

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[2]

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-“The term ‘risk,’ when used in the context of dam safety, is comprised of three parts: (1) the likelihood of occurrence of a load (e.g., flood earthquake, etc.), (2) the likelihood of an adverse structural response (e.g., dam failure, damaging spillway discharge, etc.), and (3) the magnitude of the consequences resulting from that adverse event (e.g., life loss, economic damages, environmental damages, etc.)” (FEMA, Federal Guidelines for Dam Safety Risk Management, 2015).
+“The term ‘risk,’ when used in the context of dam safety, is comprised of three parts: (1) the likelihood of occurrence of a load (e.g., flood earthquake, etc.), (2) the likelihood of an adverse [[structural]] response (e.g., dam failure, damaging spillway discharge, etc.), and (3) the magnitude of the consequences resulting from that adverse event (e.g., life loss, economic damages, [[environmental]] damages, etc.).” <ref name="FEMA1025">[[Federal Guidelines for Dam Safety Risk Management (FEMA P-1025)| Federal Guidelines for Dam Safety Risk Management (FEMA P-1025), FEMA, 2015]]</ref>
-According to the United States Army Corps of Engineers (USACE), risk is defined as “the measure of the probability and severity of undesirable consequences” (USACE FAQ Definitions, DATE). Risk is further defined by the USACE as the product of the frequency of an event, the probability of occurrence of that event, and the consequences of that event (USACE FAQ Definitions, DATE). In recent years, risk has become a major factor in identifying where resources should be expended to achieve the highest increase in public safety. The process of using risk in this manner is known as Risk-Informed Decision Making (RIDM) and includes an entire process of identifying and analyzing potential failure modes to reduce the overall risk of a dam failure.
+According to the United States Army Corps of Engineers (USACE), risk is defined as “the measure of the probability and severity of undesirable consequences”.<ref name="USACE Def">FAQ Definitions, USACE, 2022</ref> Risk is further defined by the USACE as the product of the frequency of an event, the probability of occurrence of that event, and the consequences of that event. In recent years, risk has become a major factor in identifying where resources should be expended to achieve the highest increase in [[Public Safety|public safety]]. The process of using risk in this manner is known as Risk-Informed Decision Making (RIDM) and includes an entire process of identifying and analyzing potential failure modes to reduce the overall risk of a dam failure.
-[[Risk Analysis]]</br>
+==Risk Processes for Dam Safety==
-[[Risk Assessment]]</br>
+* [[Risk Analysis]]
-[[Risk Management]]</br>
+* [[Risk Assessment]]
-[[Risk Communication]]</br>
+* [[Risk Management]]
+* [[Risk Communication]]
 ==Examples==
-{{Website Icon}}
+{{Website Icon}} [https://damfailures.org/lessons-learned/periodic-risk-review/ Learn the basics of risk-informed decision-making for dams at DamFailures.org]
 ==Best Practices Resources==
-{{Document Icon}}
+{{Document Icon}} [[Best Practices in Dam and Levee Safety Risk Analysis|Best Practices in Dam and Levee Safety Risk Analysis, USACE/USBR]]
+{{Document Icon}} [[Risk-Informed Decision Making (RIDM) Interim Policy Guidance|Risk-Informed Decision Making (RIDM) Interim Policy Guidance, FERC]]
+{{Document Icon}} [[Federal Guidelines for Dam Safety Risk Management (FEMA P-1025) | Federal Guidelines for Dam Safety Risk Management, FEMA]]
+{{Document Icon}} [[Dam and Levee Safety: Using Risk-Informed Decision Making | Dam and Levee Safety: Using Risk-Informed Decision Making, USACE]]
 ==Trainings==
-{{Video Icon}}
+{{Video Icon}} [[On-Demand Webinar: The History of Dam Safety Governance in the US Including Risk Analysis]]
+{{Video Icon}} [[On-Demand Webinar: What Can I Really Expect to Get Out of a Semi-Quantitative Risk Analyses (SQRA)?]]
+{{Video Icon}} [[On-Demand Webinar: How to Conduct a Successful PFMA - Lessons Learned from Past Successes and Failures]]
+{{Video Icon}} [[On-Demand Webinar: Risk Communication for Dams]]
+{{Video Icon}} [[On-Demand Webinar: Tolerable Risk Guidelines for Dams: How Safe is Safe Enough]]
+{{Video Icon}} [[On-Demand Webinar: Risk Assessment Basics for an Individual Dam]]
+{{Video Icon}} [[On-Demand Webinar: Risk Management for a Portfolio of Dams]]
+{{Website Icon}} [[Fundamental Dam and Levee Safety Training|Fundamental Dam and Levee Safety Training, USACE]]
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