Workshop on Probabilistic Flood Hazard Assessment
The U.S. Nuclear Regulatory Commission's Offices of Nuclear Regulatory Research, Nuclear Reactor Regulation, and New Reactors in cooperation with Federal agency partners: U.S. Department of Energy; Federal Energy Regulatory Commission; U.S. Army Corps of Engineers; U.S. Bureau of Reclamation; and U.S. Geological Survey organized and conducted a "Workshop on Probabilistic Flood Hazard Assessment (PFHA)" at NRC headquarters auditorium, Rockville, Maryland, January 29 – 31, 2013. This research workshop provided a venue for the sharing of information on probabilistic flood hazard assessments of extreme natural and human-related events (i.e., annual exceedance probabilities much less than 2.0 E-3 per year) among the Federal community. The organizing committee chose the session topics, presenters and panelists.
The workshop objectives were to:
- assess, discuss, and inform participants on, the state-of-the-practice for extreme flood assessments within a risk context with the following objectives;
- facilitate the sharing of information between both Federal agencies and other interested parties to bridge the current state-of-knowledge between extreme flood assessments and risk assessments of critical infrastructures;
- seek ideas and insights on possible ways to develop a PFHA for use in probabilistic risk assessments (PRA);
- identify potential components of flood-causing mechanisms that lend themselves to probabilistic analysis and warrant further study (i.e., computer-generated storm events);
- establish realistic plans for coordination of PFHA research studies as the follow-up to the workshop observations and insights; and
- develop plans for a cooperative research strategy on PFHA for the workshop partners.
The technical focus was to:
- understand flood assessment needs of the participating Federal agencies with respect to the evaluation of critical industry infrastructure;
- leverage the flood hazard risk assessment studies performed to date to assess the applicability and practicality of using probabilistic approaches for extreme flood hazard assessments within a risk framework;
- discuss research or other activities needed to address identified gaps or challenges in the use of PFHA for extreme flood assessments within PRA; and
- determine how these PFHA approaches and methods can be best utilized in conjunction with more traditional deterministic approaches.
- Final Program of the Federal Workshop on Probabilistic Flood Hazard Assessment (PFHA)
- Public Meeting Summary
- Panel 1: Federal Agencies' Interests and Needs in PFHA
- Panel 2: State-of-the-Practice in Identifying and Quantifying Extreme Flood Hazards
- Panel 3: Extreme Precipitation Evens
- Panel 4: Flood-Induced Dam and Levee Failures
- Panel 5: Tsunamis Flooding
- Panel 6: Riverine Flooding
- Panel 7: Extreme Storm Surge for Coastal Areas
- Panel 8: Combined Events Flooding
- Panel 9: Summary of Significant Observations, Insights and Identified Opportunities for Collaboration on PFHA
Please note that the workshop proceedings are being developed and will be issued as a NUREG/CP report. The proceedings will provide summaries of the presentations, panel discussions, and major observations and insights.
Page Last Reviewed/Updated Thursday, August 17, 2017