Fabian Nehrbass Sea level rise floods Thailand 45 billion dollars damage due to floods in the past two years Australia 96 billion 14 million people live in Louisianas coastal parishes ID: 569311
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Slide1
Amphibious Homes: A Real Solution to Flooding?
Fabian
NehrbassSlide2
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 2050Slide3
Possible solutions:
Levees
Restoration of wetlands
Sediment use form Mississippi to rebuild land
Abandon land
Adapt!Slide4
Amphibious homes
Allows the home to sit close to the ground, and in the event of a flood, rise up with the rising waterSlide5
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 characterSlide6Slide7
Advantages of floating homes
No loss of character
Cheaper than elevating
No issues with soil subsidence
Less vulnerable to hurricane damageSlide8
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 Slide9
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?Slide10
FEMA
SuggestionsSlide11
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 riseSlide12
Examples
Netherlands
Maas River
Prison
Greenhouses
Maldives – designed by
Watersudio
Raccourci
Old River, Louisiana
9
th
Ward
Lakeview
UKSlide13
FLOAT
House, 9
th
WardSlide14
FLOAT House, 9th
WardSlide15
FLOAT House, 9th
WardSlide16Slide17
“Noah’s Ark” –LakeviewSlide18
Raccourci Old RiverSlide19Slide20Slide21Slide22
Maas River
$310,000 each (about 25% greater)
All survived major floods in 2011Slide23
Maas RiverSlide24Slide25
Maas RiverSlide26Slide27
Floating prison-
Zaandem
, NetherlandsSlide28
Floating prison- Zaandem
, NetherlandsSlide29
MaldivesSlide30
MaldivesSlide31Slide32
Conclusion
No flood insurance, no success
Frequency of storms?
Wind protection?
Float them down the river to Baton Rouge!