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8/13/2019 BRW I | All Presentations
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JOSEVILLALOBOS
PANEL
ONE
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Worldwide Approaches to Living With Water
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JOSERAYNAL
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CRAIGCOLTEN
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Resilience as a
Process:
Govenor McKeithenpromised he would
establish proceduresthat will . . . make arepeat of this disasterimpossible.
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Place Based:
Flooding from
Hurricane Betsy 1965
US Army Corps of Engineers
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Place Based: Hurricane Protection LeveesTo reduce future flooding.
New Orleans Times Picayune
1965
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Social Memory:Local evacuationto schools.
New Orleans Public Library
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d l
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RebuildLower 9th
RedevelopCarrollton Ave.
RenewCanal Street
Recovery:Recovery part ofplanning process.
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CHRISPULASKI
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Troublein Sportsmans Paradise?www.vanishingparadise.org
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MARKDAVIS
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RICHARDCAMPANELLA
PANEL
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BASJONKMAN
PANEL
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Building resilience and flood risk
management
Dr. Bas Jonkman
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National Water plan on safety
New flood defencepolicy -> new safety
standards, based on:
Individual risk Societal risk Cost Benefit
Analysis
Consider different
layers of protection:
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Build 50,000 newhomes in the deep
polder
Increase inconsequences
Consequencereduction considered:
Mounds Super levees
So far: not feasible due
Almere case
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Existinglevee
800 newhomes
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Scheveningen / The Hague
case
Different options
considered:
- buildingresilience
- Moving the seadefence forward
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Scheveningen / The Hague
case
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Closing remarks
Need to find a balance between differentlayers of protection
High level of protection: difficult to justifybuilding resilience behind the levees
Trend: investigate combinations of floodprotection and spatial development (on the
levees): delta dikes
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Flood threats in the NetherlandsRainfall floods
Failure of local flood defences
Failure of primary flood defences
Flooding of unembanked areas
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DONBLANCHER
PANEL
THREE
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Don Blancher
Sustainable Ecosystem Restoration,
LLC&
GroundworkNOLA
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Krasney & Tidball, 2009
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Krasney & Tidball, 2009
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AMANDAMOORE
PANELTHREE
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!"#$ &'()*)+,-
",)+(./0(1
!"#$ & +
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!"#$ &'()*)+,-
",)+(./0(1
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ELIZABETHENGLISH
PANELFOUR
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For over 30 years, amphibious houses
at Raccourci Old River have been
rising and falling reliably with the levelof flooding of the Mississippi River.
Dry in September . . . The same house . . . Floating in February
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Dry in September . . . The same house . . . Floating in February
Average cost of buoyancy
system is around $5,000.
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Buoyant foundations are not new!
Dry in September . . . The same house . . . Floating in February
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So why fight floodwater
when you can float on it?
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Section drawing of a
shotgun house with abuoyant foundationinstalled, showingbuoyancy blocksunder the house andvertical guidance
poles that telescopeout of the ground
Figure Created by Stuart Broussard
How it works
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Figure Created by Stuart Broussard
House ontraditionalmasonry piers
Houseelevatedto 8 feet
House witha BuoyantFoundation
Comparison of 3 Conditions
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WHICH WOULD YOU CHOOSE?
Completed buoyant foundation
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Completed buoyant foundation
Aerial view
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Aerial view
Moving the sandbags to tilt the house
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Moving the sandbags to tilt the house
Let's be sure this never happens again
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Flooded shotgun house, New Orleans, 8 Sept 2005 photo by E. C.English
Let s be sure this never happens again
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www.buoyantfoundation.org
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PRITHULAPROSUN
PANELFOUR
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YARROWETHEREDGE
PANELFIVE
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Yarrow Etheredge
Best National Practices
Implemented Locally
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BILLCOULBOURNE
PANELSIX
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ATC Past
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ATC Past Several are landmark documents that
have changed engineering practice
ATC-3: Basis for seismic design
provisions of UBC
ATC-20: Post-EQ safetyevaluation
FEMA 154 (ATC-21): Rapidvisual screening
ATC Past
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ATC Past
ATC-14 Evaluating the SeismicResistance of Existing Buildings (1987)
Superseded three times FEMA 178, FEMA 310, ASCE 31
ATC Present
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ATC Present
Extremely active in earthquake fieldAdditional emphasis:
High wind design Flood design issues
Documents, books, training
ATC Present Wind
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ATC Present - Wind
0510
ATC Present Flood
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ATC Present - FloodA Report on the Real
Risk of Flooding
A Pre-standard for
Determining Flood RiskBased on Vulnerabilityand Consequences
?????
Applied Technology Council
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MIKEHUNNICUTT
PANELSIX
Process for Flood Mapping
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pp gFlood Mapping Project Phases
DataAcquisition
andEngineering
Analysis
DFIRMProduction
PreliminaryDFIRM
PostPreliminaryProcessing
ProjectScoping
(Three phases)
CommunityCoordination& Mapping
NeedsAssessment
90 D30 D 6 M thV iV i
Appeal &ProtestPeriod
Letter ofFinal
Determination
Effective
DFIRM
CommunityConsultationOfficers (CCO)
Meeting& Public
Open House
Preliminary
DFIRM
Appeals
Resolved
CommunityAdopts
Map
FEMA DFIRM Post Preliminary Process
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