Risk Management for Dam Safety: Difference between revisions
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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.).” <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> | “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” | 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 Processes for Dam Safety== | ==Risk Processes for Dam Safety== | ||
* [[Risk Analysis]] | * [[Risk Analysis]] | ||
* [[Risk Assessment]] | * [[Risk Assessment]] | ||
* [[Risk Management]] | * [[Risk Management]] | ||
* [[Risk Communication]] | * [[Risk Communication]] | ||
==Examples== | ==Examples== | ||
{{Website Icon}} [https://damfailures.org/lessons-learned/periodic-risk-review/ Learn the basics of risk-informed decision-making for dams at DamFailures.org] | {{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== | ==Best Practices Resources== | ||
{{Document Icon}} [[Federal Guidelines for Dam Safety Risk Management (FEMA P-1025)|Federal Guidelines for Dam Safety Risk Management | {{Document Icon}} [[Best Practices in Dam and Levee Safety Risk Analysis|Best Practices in Dam and Levee Safety Risk Analysis, USACE/USBR]] | ||
{{Document Icon}} [[Dam and Levee Safety: Using Risk-Informed Decision Making|Dam and Levee Safety: Using Risk-Informed Decision Making | {{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== | ==Trainings== | ||
{{Video Icon}} [[On-Demand Webinar: The History of Dam Safety Governance in the US Including Risk Analysis]] | {{Video Icon}} [[On-Demand Webinar: The History of Dam Safety Governance in the US Including Risk Analysis]] | ||
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{{Video Icon}} [[On-Demand Webinar: Risk Assessment Basics for an Individual Dam]] | {{Video Icon}} [[On-Demand Webinar: Risk Assessment Basics for an Individual Dam]] | ||
{{Video Icon}} [[On-Demand Webinar: Risk Management for a Portfolio of Dams]] | {{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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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: 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