Purpose
Multi-County coastal MPO
High population density in Flood Zones
Tourism and Service Industries dominate
Continued widespread growth
Many critical facilities in high impact areas
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Rationale behind the study
Promoting Resilient Operations for Transformative, Efficient, and Cost-Saving Transportation (PROTECT)
• Building Resilient Infrastructure and Communities (BRIC)
• Florida Resilient Coastlines Program (FRCP)
• Rebuilding American Infrastructure with Sustainability and Equity (RAISE) Grant Program
Miles Exposed to Combined Flood Hazards: 145
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Hurricane Ian Initial Lessons Learned
• Causeways
• Inland flooding
• Detour routes
• Newer structures and housing survived
Roadway Damage in North Port from Hurricane Ian. Photo Credit: City of North Port Facebook
Flooding, debris, and roadway washout due to Hurricane Ian.
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Photo Credit: FDOT
Resiliency and Vulnerability
Shocks
(e.g., unexpected disruptions - pandemic, hurricane)
Probability
(e.g., storm surge, nuisance flooding, wildfires)
Resilience
Vulnerability
Risk
Stresses
(e.g., sustained trendsseal level rise, changing climate patterns)
Criticality
(e.g., evacuation route, SIS Facilities)
Exposure
(e.g., storm surge, nuisance flooding, wildfires)
AdaptiveCapacity
(e.g., asset’s age)
Consequences
(e.g., storm surge, nuisance flooding, wildfires)
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Study Approach
Collect data Assess vulnerability Assess risk Develop mitigation options Prioritize mitigation projects
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Review Plans
Local Mitigation Strategy
Comprehensive Emergency Management Plan
Post Disaster Redevelopment Plan
Municipal Plans
MPO Plans
Hazards Identified:
Storm Surge Nuisance
Flooding
Wildfires
Type of Plan Data Vulnerability Risk Mitigation Options Prioritize
Collect data Assess vulnerability Assess risk Develop mitigation options Prioritize mitigation projects
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Review Plans
• Criticalforanalysis
Critical for Analysis
Supporting data
• Roads and bridges, hazard data, and critical facilities
Data Collection
• Supportingdata
• Government facilities, activity and employment centers
• Informational
• Waterbodies, potable water supply
Assess
Assess
Prioritize
Collect data
vulnerability
risk Develop mitigation options
mitigation projects
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Collect data Assess vulnerability
risk Develop mitigation options Prioritize mitigation projects
Review Plans
Data Collection
Transportation Assets
Transportation Assets
Regional Assets
Natural Assets
Roadway and Bridge Facilities
Airports, Seaports, rail and Freight facilities
Airports, Seaports, rail and Freight facilities
Public Transportation facilities
Regional Bicycle and Trail Facilities
Regional Assets
Employment and Activity Centers
Storm Surge Zones
Government and Critical Facilities
Evacuation Zones
Water and Energy Facilities
Flood Zones
Topography
Areas at Risk of Wildfires
Natural Assets
Assess
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Why
• Provide an understanding of the system’s vulnerabilities
• Develop a prioritized list of assets that are at risk to extreme weather
• Make informed decisions about the costs & benefits of potential mitigation options
• Support making decisions on how to best prioritize solutions with limited resources
Collect data Assess vulnerability Assess risk Develop mitigation options Prioritize mitigation projects 10
• An overall vulnerability score is developed by weighting the three components
• Vulnerability scores reviewed to ensure scores reflect local conditions
Criticality (e.g., evacuation route)
Exposure (e.g., storm surge depth)
Adaptive Capacity (e.g., asset age)
Assess
Assess
Prioritize mitigation
Collect data
vulnerability
risk Develop mitigation options
projects
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How Why
Collect data Assess vulnerability Assess risk Develop mitigation options Prioritize mitigation projects
Example 1 Moderate (Category 3) Low (Not in Flood Zone) Moderate Moderate Example 2 High (Category 1&2) High (1 Percent Annual Chance Event) Low High Example 3 Low (Category 4&5) Moderate (0.5 Precent Annual Chance Event) High Moderate Asset Storm Surge Nuisance Flooding Wildfires Exposure Score How
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Exposure
Why
Why
AdaptiveCapacity
Asset Type Indicator
Description
How
Asset Storm Surge
Road Elevation of Asset
Storm Surge
Nuisance Flooding
Wildfires
The higher the asset is, the less likely it would be inundated and damaged from storm surge.
Exposure Score
Bridge Bridge Height Bridges with less clearance above the waterway are more likely to experience storm surge heights that reach their deck.
Scour Rating
Bridges that have already been identified as having problems with scour are more likely to be damaged during storm surge events.
Nuisance Flooding
Elevation of Asset
Road
Proximity to Coast
Bridge Bridge Age
If an asset is located at a relatively low elevation compared to surrounding areas, water may tend to "pond" there, causing flooding during heavy precipitation events.
Areas near the coast, to where water drainage flows, could back up and flood sooner than the inland areas.
Older bridges may have been built to outdated design standards, rendering them more sensitive to precipitation events than bridges designed more recently.
Collect data Assess vulnerability Assess risk
Prioritize
Develop mitigation options
mitigation projects
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Criticality
• Annual Average daily traffic
• Functional classification
• Goods movement levels
• Access to employment/educational/medical facilities
Asset Storm Surge Nuisance Flooding Wildfires Exposure Score
• Evacuation route
• Transit route
• SIS facilities
Collect data Assess vulnerability Assess risk Develop mitigation options Prioritize mitigation projects
Why 14
How
Why
• Risk considers the probability that an asset will experience a particular impact and the severity or consequence of the impact.
How
• Assessment will be used to develop a prioritized list of assets that are at risk to the hazards
Probability
• Likelihood of occurrence
Consequences
• Replacement costs
• System impacts (Detour length, delays)
Prioritize mitigation
Collect data Assess vulnerability Assess risk Develop mitigation options
projects
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Why
Collect data Assess vulnerability Assess risk
Prioritize mitigation
Develop mitigation options
projects
How 16
Vulnerability and Risk Score
Collect data Assess vulnerability Assess risk Develop mitigation options Prioritize mitigation projects
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Type 1
MitigationStrategyCategories
• InfrastructureHardening:Underground Utilities, Retrofitting, Redundancy, Maintenance and Operations
Type 2
• GreenandSustainable Solutions:Landscaping , Natural Stormwater features, Living Shorelines, Natural Barriers
Type 3
• PlanningandPolicySolutions:Land Use and Zoning Revisions, Asset Management Guidebook, Grants
Type 4
• PublicEducationandPreparedness:Tree Education and maintenance, Shelter and Evacuation Route Education
Collect data Assess
Assess risk
Prioritize mitigation
vulnerability
Develop mitigation options
projects
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Sarasota/Manatee MPO Resiliency Vulnerability Assessment Study
Adaptation Strategy Strategy Category Type Feasibility Lead Agency Timeframe for Completion Opportunities for Dividends Bridge Off-System Road On -System Road Storm Surge Flooding Wildfire Underground Utilities Infrastructure Hardening Planning and Policy Solutions $$ Utility Companies/Local Jurisdictions Long term X X X Retrofitting /Hardening Infrastructure Hardening $$$ State/MPO/Local Jurisdictions Long term X X X X X X X Relocation Infrastructure Hardening Planning and Policy Solutions $$$ State/MPO/Local Jurisdictions Long term X X X X X Redundancy Infrastructure Hardening $$$ State/MPO/Local Jurisdictions Long term X X X X X X Maintenance and Operations Infrastructure Hardening $ State/Local Jurisdictions Medium term X X X X X X Drainage Improvements Infrastructure Hardening Green and Sustainable Solutions $$ State/Local Jurisdictions Medium term X X X X X Replacement of Existing Facilities Infrastructure Hardening Green and Sustainable Solutions $$ State/MPO/Local Jurisdictions Long term X X X X X X Tree Species Green and Sustainable Solutions Planning and Policy Solutions $ State/Local Jurisdictions Short term X X X X X Construct Natural Features Green and Sustainable Solutions $$ State/Local Jurisdictions Medium term X X X X X Land Use and Zoning Revisions Planning and Policy Solutions $ Local Jurisdictions Medium term X X X X X X Asset Management Guidebook Planning and Policy Solutions $ State/MPO Short term X X X X X After Action Reports Planning and Policy Solutions Public Education and Preparedness State/MPO/Local Jurisdictions $ Short term X X X X X X X Grants Planning and Policy Solutions Infrastructure Hardening Green and Sustainable Solutions S State/MPO/Local Jurisdictions Short term X X X X X X X Tree Education and Maintenance Public Education and Preparedness $ Local Jurisdictions Short term X X X X X Highwater Alert Lifesaving Technology (HALT) Public Education and Preparedness Infrastructure Hardening $ State/MPO/Local Jurisdictions Short term X X X Shelter and Evacuation Route Education Public Education and Preparedness $ Local Jurisdictions Short term X X X X X X X Citizen Reporting System Public Education and Preparedness $ Local Jurisdictions Short term X X X X X
Assess
Assess
Develop mitigation options Prioritize mitigation projects 19
Collect data
vulnerability
risk
ExposureandCriticality
Tier I: Most Vulnerable Facilities
Tier II: Vulnerable Facilities
Tier III: Least Vulnerable Facilities
Collect data Assess vulnerability Assess risk Develop mitigation options Prioritize mitigation projects 20
ExposureRatingforMPOArea
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CriticalityRatingforMPOArea
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Road Network Tiers for MPO Area
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Highest Priority Locations
• Albee Farm Road
• Beneva Road
• Jacaranda Boulevard
• Laurel Road
• Pine Avenue/Gulf Drive
• Venice Bypass
• I-257 • I-75 • SR 64 • SR 789 • St. Armands Circle • US 301 • US 41/Tamiami Trail
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• River Road • SR 70 • SR 72
Resiliency Phase II
• ExpectedOutcomes
- The refined project list will be informed based on Phase I recommendations, improved data, local jurisdiction guidance and preference.
- Will be further informed based on lessons learned from Hurricane Ian.
- Potential mitigation measures will be identified for project development.
- Foundational element of upcoming 2050 Long Range Transportation Plan
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Long Range Transportation Plan 2050
• RefiningPriorityProjects,BoxedFunding, andDiscretionaryGrants
~10-20highpriorityprojectswithdefinedcost feasibility.
Adjustmentstopriorcostfeasibleplanbased onupdatedstatewiderevenueprojections.
Electedofficialsupportandguidance. Definedmulti-jurisdictionalstrategytoapply forandimplementdiscretionarygrantsas definedinIIJA.
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Thomas Bender-Herald Tribune
Questions
Link to the Resiliency and Vulnerability Assessment
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Contact Information: Prakrati Shrivastava Project Manager - Sarasota/Manatee MPO prakrati@mympo.org Main: (941) 359 -5772 | Direct: (941) 259 -6043 Ryan Brown, AICP Planning Manager- Sarasota/Manatee MPO ryan@mympo.org Main: (941) 359 -5772 | Direct: (941) 259 -6052 28
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