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Ricardo A. Alvarezwww.mitigat.com [email protected] 305-332-3664
Resilience and Adaptation Planning in the Estero Bay Region
12 December 2016
Florida Gulf Coast University
Fort Myers, FL
12/13/2016 RICARDO A. ALVAREZ - MITIGAT.com, Inc. 1
12/13/2016 RICARDO A. ALVAREZ - MITIGAT.com, Inc. 2
Sea level rise and the built environment:
Expected impacts and solutions
o BACKGROUND
o DEFINITIONS
o WHAT IS MISSING IN THE CONVERSATION?
o TOWARD RESILIENCE
o FOCUS ON THE IMPACTS
o POSSIBLE SOLUTIONS
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Sea level rise and the built environment:
Expected impacts and solutions
o Interaction of human activity with hazards
o Dynamic interactive process
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Sea level rise and the built environment:
Expected impacts and solutions
o Source of potential damage
o Consists of damaging components
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Sea level rise and the built environment:
Expected impacts and solutions
o Adverse consequence from a hazard
o Direct, indirect, or consequential
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Sea level rise and the built environment:
Expected impacts and solutions
o Shelter for human activity
o Continuity of function
o Interdependency with natural environment
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Sea level rise and the built environment:
Expected impacts and solutions
o It is about elasticity, bouncing back
o Continuity of function
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Sea level rise and the built environment:
Expected impacts and solutions
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Sea level rise and the built environment:
Expected impacts and solutions
Incorporate these criteria in conversation:
o Sea level RUN: horizontal component ~ 200:1
o A BAND not a line (of risk): water meets land
o A moving target: need a temporal component
o Mitigation vs adaptation: different timelines
o Exclamation points!: exacerbation of other impacts
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Sea level rise and the built environment:
Expected impacts and solutions
Incorporate exclamation points in conversation:
o Storm surge: water-depth dependent
o Wave impact: water-depth dependent
o Extreme rain events: water-depth dependent
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Sea level rise and the built environment:
Expected impacts and solutions
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Sea level rise and the built environment:
Expected impacts and solutions
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Sea level rise and the built environment:
Expected impacts and solutions
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Sea level rise and the built environment:
Expected impacts and solutions
THE SILENT KILLER: seepage, salt-water intrusion
o Raises water table
o Water-logged soils
o Damage to landscaping
o Weakens roadways and infrastructure
o Degrades functionality of septic systems
o Chloride corrosion – Structural damage
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Sea level rise and the built environment:
Expected impacts and solutions
THE SILENT KILLER: seepage, salt-water intrusion
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Sea level rise and the built environment:
Expected impacts and solutions
STORM SURGE – WAVE IMPACT
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Sea level rise and the built environment:
Expected impacts and solutions
POSSIBLE SOLUTIONS: Natural, soft mitigation
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Sea level rise and the built environment:
Expected impacts and solutions
POSSIBLE SOLUTIONS: Based on design criteria
o Forward-looking design paradigm
o Cut-off walls
o Sea walls (except in sandy beaches)
o Surge/wave deflectors
o Alternative waste-water treatment
o Building/infrastructure elevation
o Water relocation and storage (temporary)
o Building/infrastructure relocation
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Sea level rise and the built environment:
Expected impacts and solutions
POSSIBLE SOLUTIONS:
o Longshore sand transport
o Ecosystem protection
o Turtle nesting
o Navigation
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Sea level rise and the built environment:
Expected impacts and solutions
How much time do we have?
How much time can we buy?
