Developing Regional Solutions for Climate Resiliency and Flood Mitigation
Explore how the Southeast Michigan Council of Governments is working on developing regional solutions for climate resiliency and flooding mitigation. Learn about the objectives, scope, methodology, and next steps of this important project.
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Presentation Transcript
Developing Regional Solutions Southeast Michigan Council of Governments
Climate Resiliency Project Objectives Develop Flooding Risk Tool Identify transportation assets vulnerable to flooding Support investment decisions Integrate with asset management programs Identify cost effective and sustainable solutions to flooding 3
Scope Geography: SEMCOG 7-county region Asset types: Bridges Culverts Roads Pump stations Hazards: Flooding All assets scored are on the 3 major MDOT functional classification roadways: 1 Interstates 2 Other Freeways 3 Other Principal Arterials
Flooding Risk Score Develop Flooding Risk Score for 4 Roadway Assets pump stations culverts bridges roads
Components of Climate Risk Exposure Vulnerability Sensitivity Risk Criticality
Methodology Past Flooding Experience (75%) FEMA Flood Zone Location (10%) Flow Accumulation and Ponding (6%) Impervious Surface (6%) Change in Days with Precipitation > 3 Inches (3%) Exposure (50%) Vulnerability (75%) Past Flood Damage (20%) Scour Criticality (50%) Channel Condition (10%) Fracture Critical (10%) Single or Multi Span (10%) Sensitivity (50%) Risk Traffic Volume (20%) Functional Classification (20%) Detour Length (20%) Cost of Replacement (20%) Economic Impact (20%) Criticality (25%)
Sample Map Output: Bridge Draft Risk Scores Maps created for each asset Note the lower risk areas are in the less urbanized areas Workshops in November to review with MDOT and County road agencies
Next Steps Final Project Maps and Report Feb 2020 Transportation Planning Process Asset Management Programs Workshops with local agencies Role of emergency planning & hazard mitigation Consider expanding to local roads Update with new asset data (i.e. culverts and updated condition)
