amphibious homes: a real solution to flooding?
DESCRIPTION
Fabian Nehrbass. Amphibious Homes: A Real Solution to Flooding?. Sea level rise- floods. Thailand $45 billion dollars damage due to floods in the past two years Australia $9.6 billion 1.4 million people live in Louisiana’s coastal parishes 634,000 homes New Orleans sea level rise: - PowerPoint PPT PresentationTRANSCRIPT
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Amphibious Homes: A Real Solution to Flooding?
Fabian Nehrbass
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Sea level rise- floods
Thailand $45 billion dollars damage due to floods in the past two years
Australia $9.6 billion 1.4 million people live in Louisiana’s
coastal parishes 634,000 homes New Orleans sea level rise:
8” by 2030 19” by 2050
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Possible solutions:
Levees Restoration of wetlands Sediment use form Mississippi to
rebuild land Abandon land Adapt!
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Amphibious homes
Allows the home to sit close to the ground, and in the event of a flood, rise up with the rising water
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Why not just elevate homes?
Increased vulnerability of the structure to wind damage
Elevations are expensive $40,000-$60,000 to elevate vs. $25,000
to retrofit existing house with floating foundation
Difficult access to living areas Loss of character
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Advantages of floating homes No loss of character Cheaper than elevating No issues with soil subsidence Less vulnerable to hurricane damage
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Problems with floating homes
FEMA does not believe they are a good strategy to protect against hurricane flooding
Storm surge can still push water into such a home
Still need to evacuate Only work in areas where water rises
slowly Size and weight limitations
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Problems continued
**National Flood Insurance Program will not insure floating houses because they are not considered anchored to the ground**
Chance they aren’t allowed In Lakeview, house wasn’t allowed in
“special flood hazard zone”
More susceptible to wind damage?
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FEMA
Suggestions
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How it works – Buoyant Foundation Project Shotgun retrofitting
Buoyancy blocks and a vertical guidance system interconnected by a light structural frame
Utility lines have either long, coiled “umbilical” lines or self-sealing “breakaway” connections that disconnect gas and sewer lines when the house begins to rise
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Examples
Netherlands Maas River Prison Greenhouses
Maldives – designed by Watersudio Raccourci Old River, Louisiana 9th Ward Lakeview UK
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FLOAT House, 9th Ward
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FLOAT House, 9th Ward
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FLOAT House, 9th Ward
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“Noah’s Ark” –Lakeview
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Raccourci Old River
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Maas River
$310,000 each (about 25% greater) All survived major floods in 2011
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Maas River
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Maas River
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Floating prison- Zaandem, Netherlands
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Floating prison- Zaandem, Netherlands
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Maldives
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Maldives
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Conclusion
No flood insurance, no success Frequency of storms? Wind protection? Float them down the river to Baton
Rouge!