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Post-Event Review Capability

The Post-Event Review Capability (PERC) methodology was created by Zurich Insurance to provide research and independent reviews of large flood events. It seeks to answer questions related to aspects of flood resilience, flood risk management and catastrophe intervention. It looks at what went well, as well as opportunities for improvement, and results in a set of recommendations for the future.

Use this page to learn about the PERC methodology, read full PERC reports or find specific recommendations.

PERC Reports

Using PERC methodology

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The PERC manual

The PERC manual

The Post-Event Review Capability (PERC) is a systematic framework for the analysis of a disaster...

Zurich’s Post-Event Review Capability: Global lessons for reducing risk and increasing resilience

Zurich’s Post-Event Review Capability:...

Impacts from disasters are getting worse. Yet after a disaster, there is rarely time to learn what...

Houston and Hurricane Harvey: a call to action

Houston and Hurricane Harvey: a call to...

Hurricane Harvey made landfall near Rockport, Texas on August 25, 2017 as a Category 4 storm. Over...

 

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PERC Recommendations

Search all the PERC recommendations produced in all PERC reports. Refine your search using the criteria on the left.

Total: 127 results found

A Strong Social Service Sector Increases Responsiveness

All observers noted that Boulder County is rich in civil society capacity, both formally organized non-profit organizations and non-formal citizen groups. There are a large number of groups, they are diverse in structu...

Redundancy, Modularity and Flexibility help

The existence of two separate water treatment facilities in the City of Boulder allowed safe water to continue to flow even when one plant was knocked out. The existence of a single sewage treatment plant that nearly f...

Mitigation is hard, and more is needed

While the mitigation measures worked as designed, many parts of Boulder County did not have adequate mitigation measures, and so the destruction in those areas was severe. Of the fourteen drainages in the City of Bould...

Mitigation Measures Worked

The system of storm-water mitigation measures worked as designed. The main elements of it were: • Bike paths and underpasses along the creeks to allow additional space for floodwaters; • Tear-away bridges designed...

Emergent organizations allowed thousands of people to help in the clean-up and recovery right from the beginning.

Volunteer management organizations like the Mudslingers and Boulder Flood Relief mobilized hundreds of volunteers with virtually no outside resources. In addition to physical labor, volunteers used their own professional...