Lecture+10-8-08+Our+Katrina

Lecture+10-8-08+Our+Katrina - Flood Policy and Building...

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Flood Policy and Building Below Sea Level in the Sacramento Delta OUR KATRINA? Matt Kondolf UC Berkeley
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The flooding in New Orleans came as a shock to many, but had been predicted in detail in advance. So how did it happen? How was it allowed to happen? Surely it couldn’t happen again. Combination of factors that led to the Katrina disaster, a story that is still hotly disputed. But it’s clear: The factors leading to the flooding of New Orleans were not unique, it could happen again. And it will probably happen in California!
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Key components of our flood management policy: Local land-use decisions (subject to development pressures) Federal flood insurance program (FEMA) The “One-Percent” Approach ie managing for the 100-year flood
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The role of floodplains: to accommodate floodwaters in excess of channel capacity. Lagunitas Ck channel floodplain
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Adapting to floods
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The One-Percent Approach The 100-year flood has a one percent chance of occurring in any year Probability is the reciprocal of return period
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This document was uploaded on 07/22/2009.

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Lecture+10-8-08+Our+Katrina - Flood Policy and Building...

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